Saturday, August 31, 2019

Mr. Rogers Essay

I grew up in a community named North Miami located. My upbringing developed my core beliefs of religion, family, loyalty, compassion and honesty. It also taught me that all things worthwhile require hard work. Becoming a Neonatal Nurse through school will prove challenging and intense, but has the lifelong reward of a career that has meaning and value to me. My goal is to become a Neonatal nurse specialist to obtain professional, hands on experiences in Neonatal care units. My interest in nursing started when I was 6 years old, when I volunteered to help my aunt at the clinic she worked in as a nurse. Over the summers, I learned a lot about healthcare, nurturing, and empowerment. I also discovered through the interactions with the residents how therapeutic and comforting an encouraging smile, a friendly conversation and a helpful hand could be. I established strong relationships with several of the residents. I especially treasured my time with Charlene, a funny 56 year old resident. She showed me that helping others is one of life’s greatest gifts. For that wisdom, I will always be grateful. Eager to learn more, I shadowed my aunt during her daily rounds at a local clinic she worked in, observing her genuine care as she completed her daily routine. She proved she knew as much about the person as she did about the health concern; I was impressed by the connection she had with each of her patients. My experience took an unexpected turn about midday when I participated in the labor and delivery of a baby to a mother that was in her late 20s. As the delivery neared, I stepped away to make room for the medical team However, the mother was quick to call me back to her side asking me to help her hold her legs as she delivered. It was at that moment that I realized the connection I had made with her, even though I was a complete stranger only hours before. This experience solidified my desire to pursue nursing. Upon arriving in high school I’ve learned that I was going to be able to learn the standardize steps of taking care of my future patients on my own. It took a few minutes for me to compose myself, then I said, â€Å"Okay, where do I start? † As the days passed, my confidence grew with every task that I’ve completed. Training and instinct immediately took over and my adrenaline was surging. No pulse. No breathing. No responsiveness. I started chest compressions, those are the things I’ve learned in act of becoming Neonatal nurse. My upbringing and education thus far have helped define who I am, and who I would like to become. My hard work and dedication to helping others can be furthered by continuing on through high school and college where I will gain a new level of knowledge and skill that will be represented in the field in places where these are needed the most.

Research methodologies – Analysis of the definition

Man has always been curious to know about himself and his surroundings. Every individual is keen to be able to distinguish between reality and falsehood but more than often his or her thirst for the truth is left unquenched. The reason for this is that the methods or ways he or she is using to dig out the truth are not trustworthy. This happens because unfortunately our societies and cultures do not encourage social research. Rather people prefer to sit back at home and rely on alternative sources which are not based on any scientific methods or researches. There are different ways and means through which we acquire knowledge. This knowledge may be highly scientific or know how about routine things. The best of all the sources of knowledge is social research. Social research is defined as a collection of methods people use systematically to produce knowledge. It is more structured organized and systematic process than the knowledge based on alternative sources. It rarely happens that we use social research in order to find the answer to our every day questions rather we use alternative sources of knowledge. These sources could be: 1) the word of the authority, 2) traditions, 3) common sense, 4) media myth, 5) personal experiences. All these sources are weaker as compared to social research. We use these sources only because we lack motivation to find out the reality. Just out of our laziness we decide to rely on these sources of knowledge. To speak of the word of authority as a source of knowledge it is not at all a reliable one. By authority we mean parents, or government, chief executive of any firm or any body who is authoritative. The authority who ever it may be (parents, government, etc.) would mould the truth in a way which is better for itself. The authority is always biased in one of the other manner. We can find many different examples to satisfy the above argument, for instance state owned TV channels keep on giving biased statements about the government policies. They always side with the government and appose the opposition. In Pakistan PTV Khabarnama is the final word for a layman but those who are exposed to other sources of knowledge would agree that PTV Khabarnama is full of prejudices and exaggerations. A secondary example could be that of teachers, young children are so much influenced by their teachers that even if the teacher has committed a spelling mistake they would insist in front of any other person teaching them that their teacher is right. Another weak source of knowledge is traditions. Especially in those areas of the world where literacy rate is low and education is less people blindly follow traditions. Whenever they are facing a problem they would want to look up to the traditional solution. For instance when some one looses hair he or she never goes to a doctor rather sits at home and apply all kinds of hair oils recommended by grandmothers. In extreme cases people blindly follow superstitions which have no scientific arguments. Traditions vary from culture to culture. Something which is considered to be right in the eastern culture might be considered wrong in the western culture therefore traditions cannot be taken as an authenticated source of knowledge. Common sense is another way by which people tend to find answers to their questions or solutions to their problems. This is the most commonly used source of knowledge. Over time human beings learn many things which later become a part of their common sense, more than any other thing they would rely on their common sense. For example if some has launched a new product in the market and has met over whelming success, he or she would increase the production out of common sense. However it might be the case that the initial success was only a result of ‘fancy sales'. Research would have helped him to reach to a conclusion that should he or she have increased the sales or not. Some times common sense proves to be right but at others it does not therefore it can not be relied upon. Media is a great source of information and henceforth knowledge. It has to be taken into consideration that media does not only inform or entertain people it also moulds public opinion about a certain thing. Formation of ideas is one of the major jobs of media. Media might be books, newspapers, TV or anything which comes under the caption of mass communication. Media is very powerful as it leaves an impact on the minds of the people. This way media has created many myths. A layman does not even questions that whether what media shows is truth or falsehood. There are many things we claim to know about, but have never come across them face to face. The knowledge we have about them is through media. It could be a place, a human being, a product, or even any concept. For instance, no one has ever met a Ginny but even a child has a concept that a ginny is huge, horrible looking, with big teeth and big ears. This concept has been learnt from the media in this case story books and cartoons for the children. Another example is that CNN never shows Israel as an aggressor state as a result an average American does not even know that Israel is an aggressor state. On the other hand research and historical facts show that Israel has been unfair with Palestinians. The weakest source of knowledge is personal experience but we as human beings believe it to be the strongest. No individual is ready to say that what he has seen with his naked eyes could be wrong or a misunderstanding. He or she would base his future decisions in that perspective. For example if one goes to a restaurant and has the chance to have a dish which he or she finds delicious, that individual would subconsciously keep believing that this particular restaurant sells tasty food. On the other hand if some individual goes to the same restaurant but does not get the chance to have a tasty dish would believe that the restaurant sells rotten food. However both the individuals might not have experienced the truth. Truth could only be experienced through research, which is going to the restaurant again and again and taking the viewpoint of the people coming there over and over again. The above arguments prove that truth or reality can be revealed only through research. All the alternative sources of knowledge that we use are weak. They can be used but they cannot be relied upon. In order to make worthwhile and professional decisions we can just not depend upon these alternative sources. We have to carry out a social research in order to find out the truth about a certain thing. the reason is that research is always based on facts and figures, it is organized and systematic so it cannot fail. Research does not condemn the alternative sources of knowledge rather it uses them in an organized manner with research process, facts and figures to dig out the truth.

Friday, August 30, 2019

Children’s Responses to Own Practice Essay

1 Reflect on own practice. Take note of children and young peoples responses to own practice.I must always take note of how children respond to me it’s important that they feel comfortable and confident and that they trust me, never make them feel intimidated by doing this the child develop more positively emotionally, physically and mentally. 1.1 Take note of children and young people’s responses to own practise When working with children and young people schools will require you to evaluate how each individual responds while they are in your charge. You may find that different teaching styles work better than others and that some prefer a softer approach whereas others may enjoy difficult challenges. Teachers often find that you may be able to spend more time with an individual and your feedback can be a useful source of information, for this reason it is often helpful if you keep a written track of each child or groups progress and how they reacted in each session. 1.2 Ask for constructive fee dback on own practise from colleagues For you to be able to provide the best possible education for children and young people you should always be pushing yourself to reach greater heights and by listening and taking on advice from your colleagues, assessor, head teacher to parents you will be able to continue to grow into a valuable team member and role model to your students. You could ask a colleague to observe you and give back any feedback they may have. If you decide after taking on feedback and assessing your own role that you are perhaps thinking of changing the way you approach a situation, then you may find that seeking advice on the best way to approach situations through your peers could be a useful way of gaining advice. Listening to others can provide you with vital information to assist you in refl ecting upon your own practice. You should aim to listen carefully to feedback, and not become defensive or take the feedback personally. The key focus is to improve practice.Being a refl ective professional requires you to take the time to consider your work, refl ect on its objectives and evaluate its outcomes. You should be learning from your experiences and applying this newfound knowledge to future situations. This is exactly the same message as the one you will be trying to send to your candidates while you support them through their award and encourage them to become refl ective practitioners too. 1.3 Take note of  responses to own practise from others. Evaluating oneself is often a difficult procedure as it means looking deep within and taking your own beliefs and actions into account. You should aim to be as professional as possible as you in essence are looking after the well-being of somebodies child. You may find that you hold different beliefs to some parents or even the school itself and it is important that you try to remain open minded when taking advice from others. All feedback should be acted on as it is given in order to help you improve even when you are given positive feedback always try to improve your own practice if you are given negative feedback take on board what has been said, try to find ways to do things better. 1.4 Evaluate all aspects of own practice. To help me evaluate my own practice I will put together a list of questions to ask myself: Did I pay attention to the needs of all, did I properly supervise and keep a safe and secure environment, did I monitor all children carefully, did I check the area and equipment properly. If anything went wrong or if an incident occurred ask myself â€Å"what could I have done to prevent it† and what can I do to prevent it happening again? 206. Be able to improve own practice. 2.1 Identify possible development opportunities relevant to improving own practice. Development opportunities can come from within the setting if you are given a mentor who will supervise and advise you on how to keep improving, You may be able to take an adult class from a secondary source, even visit the library and take advantage of the literature on offer to help you develop. 2.2: Describe the importance of continuing professional development It is important to continue your professional development throughout your career or chosen profession, as this will help your knowledge to grow and expand. There are many ways in which you can constantly keep improving on this. You could attend courses/classes at college; attend conferences and or workshops as well as the option of learning via reading books or using the internet. A teaching assistant who may feel the need to improve her knowledge on dealing with children who have behavioural problems would need to do a college course, where she would need to use the internet and books for both her resource and references and extra information. To which she would then put all this into practice and have a new knowledgeable skill that would be invaluable to her professional role. While in your chosen profession, to hear the views of what others think is also another way of developing  yourself, they see you in a different way to how you actually see yourself. They may give you advice on how you could improve on a particular way that you handled a dispute between two children, or how you had helped/or how you could help a group of children with a subject or even doing a wall display. Their advice is an invaluable way of improving one’s self development. Another way of improving on your development is to learn from yourself. Reflect on how your day has gone and what you could have improved on. 2.3 work with an appropiate person: a)identify own strengths, and areas were practice could improve There is general agreement across all interested parties that a process of working together is the best way to determine which school or educational setting is right for an individual child with autism spectrum disorder. In the UK, families and local authorities both desire a constructive working relationship and see this as the best means by which to reach an agreement to determine where a child should be educated. b) Despite this positive outcome, survey data indicated that parents found the process bureaucratic, stressful and time consuming. Parents tended to perceive alternative placement suggestions as financially motivated rather than in the best interests of the child. Interviews with local authority personnel showed an awareness of these concerns and the complex considerations involved in determining what is best for an individual child.Conclusions: This small-scale study highlights the need for more effective communication between parents of . c)Identify goals and targets The Common Core Skills and Knowledge for the children’s workforce provides a set of basic skills and knowledge that we must be aware of and practice when we are working with children and young people on a regular basis on a part-time, full-time or on a voluntary capacity. There are six areas of skills and knowledge that we must be aware of and practice. They are: Effective communication with children, young peop le and the families involves positive clear communication, listening, comprehending, questioning and catering for their needs accordingly. Children’s and young people’s development needs to be monitored as they grow up in varying speeds emotionally, physically, socially and intellectually. It is vital to understand their development stages. Safeguarding and promoting the welfare of the child. This is a big responsibility that requires special attention for the safety, protection and well being of the child or young person.  Supporting transitions of children and younger people is essential as they are growing up and are often expected to cope with these changes. This knowledge helps us support them through this transitional process. Multi agency working is about different services working in unity to prevent problems from occurring. They work together with mutual aims and goals. Sharing information in an accurate and timely fashion is an important part of delivering abetted service for everyone. 2.4 Take part in continuing profesional development that is relevant to own goals and targets Personal Develop ment Planning is a structured and supported process undertaken by an individual to reflect upon their own learning, performance and/or achievement and to plan for their personal, educational and career development. The primary objective for PDP is to improve the capacity of individuals to understand what and how they are learning, and to review, plan and take responsibility for their own learning. 2.5 Review one personal developmentà © Personal Development Planning is a structured and supported process undertaken by an individual to reflect upon their own learning, performance and/or achievement and to plan for their personal, educational and career development. The primary objective for PDP is to improve the capacity of individuals to understand what and how they are learning, and to review, plan and take responsibility for their own learning. 2.6 Identify new areas of skillà © and knoweledge to achieve new goals and targets This article brings together an overview of ideas about teacher learning from both teacher education and workplace learning literature, and examines what and how newly qualified secondary school teachers learn in the early years of their career. We discuss the types of knowledge new teachers encounter and present a typology of teacher learning. The article also draws on a three-year longitudinal study, presenting findings from surveys of new and more experienced teachers together with analysis of interviews with ten new teachers during the first two years of their teaching career. We present findings about how these new teachers have learned in their first two years of teaching and explore the importance of the school context and other learning factors. Outcome 3 Understand the work of the team. 3.1 Describe why team work is important in schools. It is important to work as part of a team as this benefits the school as a  whole. In lessons, team work will enable the learning program to be more successful and the children achieve higher potential. 3.2 Describe the purpose and objectives of the team in which you work The purpose and objective of the team is to promote the intellectual, social and emotional development of the children. Working under the direction of the class teacher, I am to support and assist in the lesson plan and objectives, giving additional support to children who are struggling or finding a particular subject challenging. Working as a team with the classroom teacher gives the opportunity for children who are falling behind to catch up with the rest of the class. 3.3 Describe your own role and responsibilities at school and those of the others in your team As a volunteer teaching assistant I work under the direction of the class teacher to support the lesson objectives. To be aware, or make myself aware of the lesson plan and the method of teaching the lesson topic. In certain circumstances, I am to prepare or assist in the preparation of materials and resources required for the lesson. Carrying out administration duties such as filing, photocopying etc., At all times, being a good role model to the children. The teachers role is to plan the lesson and ensure all children have the opportunity to join in the lesson. Ensuring that whilst having the assistance of a TA that the TA is directed to those who may be struggling. 3.4 describe the importance of respecting the skill and expertise of other practitioners Describe the importance of respecting the skills and expertise of others at school. It is important for me to listen and respect other peoples help and advise as they have spent there time getting qualifications and have gathered years of experience in this environment, and there knowledge is valuable and helpful to me in gaining my own qualifica tions. outcame 4 Support the work of the team 4.1 support the purpose and objectives of the team The purpose of the team is to support each other,and this will help strengthen and improve teaching. The objective is to assist the teacher to provide help and support within there class whether its helping with a display or setting up a classroom what ever the teacher needs help with. 4.2 Carry out own role and responsibilities within the team My role is to assist and support the teacher. To help with the things they ask me to do this  could include putting up displays and putting them down. It could be helping the children with reading or helping setting up a class room for a lesson. It is the teachers job in the class room to plan lessons and to decide what the children will be doing. 4.3 Communicate clearly with team members and others, making sure they have the information they need Effective active listening is a key consultancy skill in building relationships, reducing resistance and agreeing ways forward. It is the foundation of interaction and feedback. The skills of activ e listening are very different from the way we listen in everyday conversation. Active listening is not a passive process but one which demands understanding of what a person is saying and reflecting the meaning back to them. This enables people to arrive at their own conclusions and identify potential steps for improvement. 4.4 Interact with others in a way that supports good team work Adult interaction is the key to measure a child’s development. It helps understand the importance of analysing children’s progress and achievement. All children are different and unique. Interaction helps children build stable, healthy and satisfying relationship and close bonding with their family, friends, classmates and care takers (social development). They learn to cooperate and work as part of team. Interaction creates awareness of a child’s development, strengths, needs, interest and most importantly in identifying areas of improvement, on the basis of which we can decide whether the child is ready for next activity and for planning further activities. Through numerous interactions children can be helped in making connections between familiar situations and new ones.We need to ensure that games being provided are suitable per the child’s age. The environment needs to be examined and safe handling instructions are to be provided (Adventure play). Equipment provided should best support the child’s play (for some older children unable to ride a bicycle a tricycle may be used to strengthen skills). We also ensure that the children are aware of what is available and able to get their own choice of equipment and toys. Children need reassurance and support till they become confident. Support and confidence building is also linked to their language development (for children who have some language delay or who do not speak the language of the setting). Children ask questions and want proper responses. We need to be active listener as it helps the child to communicate verbally and nonverbally, express ideas and thoughts. All this  can lead to an improvement in vocabulary, knowledge skills (through nursery rhymes, words games) and children gaining confidence in their speaking abilities. 4.5 Identify and suggest ways in which the team could improve its work, challenging existing practice wgere necesary have you made any suggestions to how to deal with a challenging child, or suggested a change in routine, or made any adaptations to your setting in any way. Preparing students for teamwork focuses on those students who lack in skills of teamwork, and should learn how to enhance their collaborative skill s before the team is created. Gueldenzoph Snyder suggested offering tutorial works to those that are struggling with organisational or grammatical elements. The author also emphasised on the importance of having the instructors to provide extra instruction on the element of successful teamwork (as cited in Gueldenzoph Snyder, p. 75). The reason is that, most students will perform badly on their team projects, if they do not receive instruction regarding how to improve their collaborative skills. Gueldenzoph Snyder compared the teamwork in business communication to that of sports teams, to be a first-class sport team, the athletes often need to prepare, practice and review their performance, and teamwork in business communication is the same.Second point on practicing successful collaboration makes note on the consistency of team members in the group throughout a number of projects or assignments. The benefit of having the same members over different projects allow students to collaborate better by having a good understanding between each member on the way they work. 4.6 Respond to differences of opinion and conflict constructively As a teaching assistant I am part of the wider team of teaching staff in a school. Everyone has different roles and responsibilities and this can sometimes lead to conflicts. On one occ asion I was working with an EMA class doing role plays in a hall. It was the last lesson of the day and we were using the interactive white board. The after school film club was due to use the room straight after us and the coordinator was very annoyed that she was unable to come in and set up ahead of her class. She insisted that the EMA class use another space. While I could understand her frustration at being delayed I could also see the benefits to the EMA class of using the hall. It provided the children with opportunities to do exercises that couldn’t be done in standard classroom. I could also tell that they really enjoyed working in the space. The  discussion between the teachers became slightly heated and I could see that there was tension. In order to resolve the conflict I suggested we carry out the activities that require the white board early so that the coordinator could come in towards the end of our lesson and set up the film. This solution was accepted by all. I felt I dealt with the situation constructively. 4.7 Seek advice and support from relevant people when needed Seek advice and support from relevant people when needed. As a teaching assistant I always seek advice on issues I am unsure of. If had a difference of opinion with another member of staff I would ask the teacher I worked with or different member of st aff for advice. If was having difficulty with any of my responsibilities I would ask another member of staff to help and support me to ensure I was doing things correctly.

Thursday, August 29, 2019

The Issue of Lying Essay Example | Topics and Well Written Essays - 1000 words

The Issue of Lying - Essay Example In other words, they are the biggest liars in the world. However, those who are constantly trying to point out the exact nature of lying and the ethical assumptions thereof are likely to be close to getting the truth right. Jack Willer just reminds readers that this talk is everlasting and dealing with white lies leads to worse lies that spring up eventually. This cycle is also never-ending. People generate the flow of lies thinking they can shift everyone’s expectations for better. In this vein, Willer asks a partially rhetoric question, namely: â€Å"Am I able to ever speak the truth† (Willer 81)? Given that, it becomes vital for everyone making it not a conundrum anymore and willing to get rid of some ethical concerns haunting people down every single day. To say more, the fight between a man and his/her consciousness is constantly growing. One can assume it as a way toward humane and morale. However, it is better to say that the poem by Willer generates the deepest feeling in an honorable man able to state all pros and cons in his character. A simple re-evaluation of such an elementary truth of lying gives one a powerful drive to the right decision-making afterwards. Probably, some of the readers were able to pinpoint their personalities throughout the poem or make it pretty close to their understanding of where the error happened once. Nevertheless, the life goes on, and the open-minded people are the ones to get Willer’s message quite seriously. The article Lying by Tim C. Mazur constitutes the same issue raised by Jack Willer, but from the philosophical point of view. His comment on the issue starts from the obvious. Taking a host of examples on how people lie to benefit or do harm to someone, he... This paper describes the truth of lying can be reached through the personal sincere realization of and confession in what one is about to achieve by means of lying. To make it plain, personal goals lead people to the possibility of lying under some definite circumstances and in order to keep oneself in safety from doing harm to anybody or to oneself, to be precise. On the basis of reason, lying is wrong as it â€Å"opposes the virtue of honesty†. This report shows a strong points of Mazur claims to reconsider the universal opinion on the â€Å"bad side† of lies and its healing or rationally correct effect as well. Frankly speaking, just an assumption on the many-faceted nature of lies was not enough for the author who tries to re-establish a sound-minded vision of this concept through the philosophical observation, so to speak. To conclude, the paper has illustrated that the problem of lying is a universal one. Jack Willer and Tim C. Mazur have identified sticking points in why people are tempted to lie every now and then. This is why lying is definitely ethically wrong, but it can be said right depending on a concrete situation and the philosophical treatment people choose to explain it. All in all, a witty person should evaluate the situation in detail so as to see whether or not the lies would benefit to the overall happiness of the society on the whole. The change starts from an ordinary man mirrored on the identities of others.

Wednesday, August 28, 2019

Article Review - Educational Instructional Practices, Programs, and Essay

Article Review - Educational Instructional Practices, Programs, and Strategies - Essay Example Research is a very important tool to enhance the classroom learning process. A. First Article Part 1: Summary of the Article. The article â€Å"The Detrimental Effects of Missing School† (Gottfried, 2011) emphasized that the school’s determination on the effect of the students’ missing school lessons on their performance during class tests or exams. The research centered on a large urban school district with special emphasis on high –need schools. Specifically, the study focused on the success of the no child left behind government policy. To succeed, the government introduced the Adequate Yearly Progress program to ensure the decline in the number of uneducated children. The instructional strategy/program AND the research that assessed its effectiveness is based on surveys. The findings indicate that missing school has a direct destructive effect on the teacher’s strive to increase the students’ academic performance. Likewise, the prolonged absences trigger a persistent negative relationship between excessive absences from class lessons to performance. The research focused on the academic performance of elementary school students. The research centered on the focused on setting up drastic school measures to address the decline in the student’s academic performances. ... Second, the research zeroed in on both math and reading standardized tests. The research determined the effects of absences on the students’ noncognitive areas such as behavior issues. The study showed that the absentee students feel alienated from their classmates when they enter the classroom. In addition, several absentee students feel the presence of a gap between themselves and the teachers. Analysis of the concept & research design/methodology, and implementation of the strategy in school/district. The concept of the research was very good. The researchers focused on a topic that was very timely. The concept of the research is very eye –catching. The readers of the research will surely be amazed by the results of the research. The concept of the research was to aid the teachers and the school administration to revise their current curriculum. The curriculum must be revised in order to accommodate the reality that some students are forced to skip classes. The reaso ns for the absences are not a priority. What is the priority is to encourage the students to return to the classroom. Likewise, the school administration should use the research results as a guide to increase the quality or gist of each semester’s lessons. The time spent for necessary topics will be reduced to ensure that the students will learn what they need to survive in the world within lesser number of classroom hours. The research design (interview) was very timely. The researchers interviewed the absentee students, their families, and the community to arrive at a solution to the current student absenteeism situation. To implement the strategy in my school, the school will conduct its own

Tuesday, August 27, 2019

Strategic Management (DAVIS Case study) Essay Example | Topics and Well Written Essays - 1250 words

Strategic Management (DAVIS Case study) - Essay Example On the other hand Berendsen is involved in laundry, textile rental and maintenance etc in almost twelve countries in the continent (Davis-a, n.d.). This paper conducts a comprehensive SWOT analysis of the group. The paper also includes porter’s five forces analysis and BCG matrix in the context of Davis group. SWOT analysis is one of the major tools which is used to identify and analyze an organization’s internal strengths, weaknesses and external opportunities and threats which are likely to come up in near future or already has came up. It is useful strategic planning tool for the purpose of strategic decision making at different level in an organization. SWOT analysis tool was actually founded in 1960 by Robert Stewart, Albert Humphrey and their coworkers at the Stanford Research Institute. Strength: Strengths of Davis group is actually the strengths of two of its strategic business units namely Sunlight and Berendsen. Both Berendsen and Sunlight are the market leaders in their respective operating region and this is the major strength of the Davis group. Both Sunlight and Berendsen cover almost entire Europe. As a result market coverage of Davis group is huge. Further more both the units have strong network as there are large number of processing sites. Employee strength is also a major strength of Davis group. In Sunlight there are almost 9000 employees and in Berendsen there are 7000 employees (Sunlight, n.d.).The group needs to utilize this employee strength to achieve higher economies of scale. Weaknesses: Since both Sunlight and Berendsen are two companies working under the Davis group, it would be difficult to make Berendsen operate in UK and Ireland. Similarly the group would face problem to expand Sunlight in regions outside UK and Ireland. Since both the companies are involved in various textile maintenance service they might come to compete among themselves. This is a major weakness for

Monday, August 26, 2019

Social Science Essay Example | Topics and Well Written Essays - 500 words

Social Science - Essay Example And because the economic effects differ for different regions, so do fertility and mortality rates. For developed countries, mortality rates are lower and life expectancy is higher and vice versa for the developing countries. But in any case, the global population is increasing at a high acceleration rate. The United States, under the burden of providing for a rapidly-aging, non productive elderly population, also has to deal with high rates of immigrants. The standard life cycle model yields a straightforward prediction that as a large chunk of the population comprises of aging people, national savings fall. As a result to this, investment suffers negative blows in the long run. With overseas population settling in the United States, withdrawals from the economy are promised. However, with the increase in the number of immigrants settling in the Unites States, there is also likely to be an increase in the investments in the short-run and an increased work force. It also makes the Un ited States a multi-cultural society, its population comprising of people from different races and nations. While the United States stands with certain challenges at hand with the growing, diverse population, it is justified to say that they will be able to cope with the current and projected demographic changes if policymakers accelerate their efforts to address these problems.

Sunday, August 25, 2019

Working in Orgnistions Essay Example | Topics and Well Written Essays - 2250 words

Working in Orgnistions - Essay Example Bsing on the interviews tht I conducted previously nd literture tht I hve reserched, I evlute orgniztion nd suggest its design. Mny retil shopping centers hve tried nd filed to perform excellently outside their home mrkets. Likewise, some retilers hve led stry trying to develop Internet shopping. s result, TESCO, the United Kingdom's biggest grocer, hs drwn significint ttention becuse of its mbitious overses strtegy nd its successful on-line home delivery service. nother successful key fctor tht inputs to TESCO sustinble development nd growth is the mrketing communiction pln tht provides the detiled overview of the Compny's fiscl policies s for meeting the clients' needs nd providing competitive prices within wisely locted grocers ll over the world. TESCO understnds tht successful mrketing strtegy should be bsed on customers' need, tht is why the Mission Sttement declred for the Compny sounds s it follows: "One of our vlues is to understnd customers better thn nyone. We go to gret lengths to sk customers wht they think, listen to their views, nd then ct on them. We look both t wht customers sy nd wht they do . This feedbck guides the decisions we tle" (www.TESCO.com) Tesco is the lrgest food retiler in UK, operting round 2,318 stores worldwide. Tesco opertes round 1,878 stores throughout the UK, nd lso opertes stores in the rest of Europe nd si. Tesco.com is wholly-owned subsidiry offering complete online service, including tescodirect.com nd tesco.net. The compny lso offers rnge of both online nd offline personl finnce services. Tesco is hedqurtered in Hertfordshire, UK. For the yer ended October 2005 Tesco PLC chieved revenues tht totlled 33,557 million, n increse of 18.7% ginst the previous yer's revenues tht were 28,280 million. s well s convenience produce, mny stores hve gs sttions. Section 2: Methodology Informtion for this explortory study ws gthered by conducting semistructured interviews with route slespersons hving knowledge of wholesle theft methodology. These individuls were selected on the bsis of their willingness to shre pertinent informtion with the uthors with whom they or their contcts hd estblished trusting, personl contcts. It is virtully impossible to get rndomly-selected strngers to discuss such sensitive informtion. fter the purpose nd scope of this study were fully explined to ll respondents, ech ws ssured of nonymity, nd no ttempt ws mde to gther informtion from the respondents other thn theft methodology. Section 3: Data Data for this study are mainly based on the face-to-face interview coducted recently with Tesco employees. The interviews were open-ended to ensure proper understnding of the often complicted theft methods. There were eight interviewees. Ech hd t lest two yers experience s route slesperson, nd ech greed to prticipte nonymously without compenstion. Each interviewees was given to complete the questionnaire (Appendix B), that covered various questions on organizational structure and design. Questions

Saturday, August 24, 2019

Illiad and Odyseey Greek Mythology about the Soul Essay

Illiad and Odyseey Greek Mythology about the Soul - Essay Example The underworld was ruled by Hades, and all souls after physical death went there. Greek religious beliefs were not written down in parchments but were orally passed on from one generation to another. In every culture, epical stories were created, basing on religious beliefs, and exchanged through word of mouth so that the thoughts and beliefs took deep roots in society. While philosophy was hard for the average human being to understand, fictionalized accounts were easily comprehended. Heroic stories had the power to pass on values and moral to people rather than scripts intended to preach religion. Narratives based on adventures of brave and idealistic protagonists, therefore, became popular among masses and the authors interlaced such sagas with religious and philosophical thoughts in a manner accessible to ordinary people. Thus, Iliad and Odyssey, the two epics by Homer, have a strong influence not only on Greek culture but also on their religion. Homer’s â€Å"Odyssey† is an account of Odysseus’ return to Ithaca from the Trojan War. It narrates his adventures and how he overcame the wrath of Poseidon, with the help and blessings of Goddess Athene, daughter of Zeus. Odyssey concentrates on the happenings in Odysseus’ native land, Ithaca during a twenty year period when he was away from his motherland, and the tribulations suffered by his faithful wife Penelope and son Telemachus. Finally, after a long and arduous struggle, Odysseus returns to his land, with the help of the goddess Athene, and is reunited with his wife and son. He also succeeds in killing all the suitors who wanted to marry Penelope during his long absence from Ithaca. As was the contemporary practice prevalent during that time the dead were not buried but cremated. The practice of building â€Å"a mould with all the proper funeral rites† was also practiced. (Homer, 1991. p.12, line 293).  

Friday, August 23, 2019

Child developmental Psychology Essay Example | Topics and Well Written Essays - 500 words

Child developmental Psychology - Essay Example One glass was tall and skinny and the other was short and fat. I filled both glasses with chocolate milk, pouring more milk into the short fat glass. Then I gave the tall skinny glass to Christopher and placed the short fat glass in front of myself. Before allowing him to drink, I asked him, "Who has more milk, you or me" He eyed the glasses and then confidently said, "I do," referring to his tall skinny glass of milk, whose height of milk was taller than that seen in my short fat glass. I urged him to take a second look at the glasses of milk by asking, "Are you sure" He furrowed his brow and eyed the glasses once again. "Well," he said, "maybe there's more in your glass, since it's wider." I continued with the lesson by placing another short fat glass on the table and asked Christopher to pour his tall skinny glass of milk into the empty glass to find out who really does have more chocolate milk. He slowly poured his glass of milk into the empty short fat glass. Once he was done pouring, he bent down so he was at eye level with the milk levels of the glasses. His eyes widened and he said, "Your glass had more than mine!" Christopher showed classic signs of Piaget's pre-operational stage of cognitive development.

Work psychology Essay Example | Topics and Well Written Essays - 1500 words

Work psychology - Essay Example Most previous work on function portion has stressed on human-machine relations major from a micro ergonomic perspective, to the exclusion of wider organizational and environmental concerns. As noted by Hendrick, connections among the human, machine, organizational, and environmental portion of a system need to be considered by including a more macro ergonomic frame of reference. The major aim of this new way is to help those who are involved in the design of new systems and find possible portion options and decide which are the most suitable. A second plan is that the method should not only address portion between humans and machines, on which previous function portion methods have tended to contemplate, but also inspect in detail the portion of functions between humans. Third, the method aims to make clear design decisions that may otherwise be made implicitly, unobserved, or decided upon by default. One way of facilitating explicit reflection of design options and alternatives is to include a general guideline for its use - namely, that individuals from all disciplines involved in the design, management, and use of the system should be mixed up in using the method (e.g., in a workshop setting). Finally, the scheme is planned to act as an aid to informed discussion, finding many options for evaluation. If we Re-exam the eight analysis articles on organizational behaviour that have been shown in the Annual Review of Psychology since 1979 a person cannot help but get amazed about their accomplishment in passing over a remarkable degree of simplicity as well as construction in discussing a generally ill-defined field. This review stresses on universal features of organizational behaviour, as well as structures and processes in and of organizations. Most probably, this kind of approach places this review creatively more into the macro than the micro camp of surmised organizational behaviour. Trying to find a proper angle of review is further

Thursday, August 22, 2019

The urgent need of Reformation of the Philippine Political Party System from Multi- Part to Two- Party Essay Example for Free

The urgent need of Reformation of the Philippine Political Party System from Multi- Part to Two- Party Essay REFERENCES Abueva, J. V. De Guzman, R. P. 1969. Foundations and Dynamics of Filipino Government and Politics. Manila: Bookmark, Inc. Aceron, J. 2009. Reforming the Philippine Political Party system: ideas and initiatives, debates and dynamics. Friedrich Ebert Stiftung (FES) Almonte, Jose. 2007. To Put Our House in Order: We Must Level the Playing Field. Metro Manila, Philippines: Foundation for Economic Freedom Bernas, Joaquin. 2007. The Philippine Constitution for Ladies, Gentlemen and Others. Manila: Rex Book Store. Butwell, R. 1963. Southeast Asia Today and Tomorrow: A political analysis. Praeger Publisher Janda, K., Berry J. M. Goldman J.1992. The Challenge of Democracy in America.3rd edition. Houghton Mifflin Company Inc. Heywood, Andrew. 2002. Politics (Second Edition). Hampshire and New York: Palgrave Foundation. Hinton, H. C., Ike, N., Palmer, N. D., Callard, K., Wheeler, R. S., Kahin, G.1963. Major government of Asia.2nd edition. Ithaca, New York: Cornell University Press. Kearney, R. N.1975. Politics and Modernization In South and Southeast Asia. Cambridge: Schenkman Publishing Companies, Inc. Lawson, Kay. 1989. The Human Polity: An Introduction to Political Science (Second Edition). Boston: Houghton Mifflin Company. Nohlen, D. 1984. Elections and Electoral System. Bonn, Germany: Friedrich Ebert Stiftung. Rocamora, Joel. 1997. The Constitutional Amendment Debate: Reforming Political Institutions, Reshaping Political Culture. In Glenda Gloria (ed.). Shift. Quezon City: Ateneo Center for Social Policy and Public Affairs. Schwartz, R. L., Phoenix, T.2001. Learning Perl. Retrieved from http://ebookbrowse.com/llamas-english-phd-2001-pdf-d426724738 Weissenbach, K. 2010. Political parties and party types- Conceptual approaches to the institutionalization of political parties in transitional states: The case of the Philipines. Makati: Konrad- Adenauer- Stiftung Manila Office. Zaide, G. F.1957. Philippine Political and Cultural History. Vol. 2. Manila: Philippine Education Company. Zaide, G. F. Zaide S. M.1969. Government and Politics of the Republic of the Philippines. ALCA Publishing Co. The urgent need of Reformation of the Philippine Political Party System from Multi- Part to Two- Party* _______________________ *A library research paper submitted to Ms. Victoria Jean R. Ella in partial fulfillment of the requirements in ENG 2 (College Writing in English). Second Semester 2012-13. University of the Philippines Los Baà ±os, College, Laguna. Alexis De Tocqueville, a French political thinker, historian and the author of the book Democracy in America, told that, ‘In politics, shared hatreds are almost always the basis of friendships’ (as cited in Janda, 2002, p. 271). The definition and formation of a party system can be dissected in this quotation of De Tocqueville. The friendship referred in the quotation is a well-established one, unified by the ‘shared hatred’ that would mean the shared ideals and principle of a party. Thus, a political party is an  association of politicians seeking power in the government to exercise their ethics and ideology for the common good of citizens. A party is also like an embodiment of the voters’ needs and wishes to the government. They choose some of its members as representatives to be candidates during elections as to secure position in the government. These representatives now will present the agendas and programs to the voters and the characteristics of efficient socialization and mobilization of a party will be tested. The latter pertains to the addressing of public welfare while socialization and mobilization is the capacity to organize in order to help those in poor status. The electorate then will select the candidate in their hearts by ballot. Hence, a party can develop through the ideas in religion, business, agriculture and other aspects. (Heywood, 2002) Political parties in a network of relationships are called party system. It should be taken note that a party system is not merely a group of political parties. There is a certain standard to be considered before warranting if it is a party system or not. The number and size of the party is the first thing to be considered. It is relevant in the electoral process as it will serve as a reference to the chances of each party to gain power. Aside from this, the number of party is related to the naming of the different types of party systems. The second consideration is the relationship possessed among each party, if it is interconnected with harmony and cooperation or with discord and conflict. Stability and the degree of orderliness must be characterized by a genuine party system. (Heywood, 2002) In c ontemporary times, there are four main types of party system. Chinese Communist Party is an example of one- party system characterized by monopoly of government power. Two- party system is characterized by two parties competing for different positions in the government to secure power. This kind of system is practiced in USA and UK. Dominant party system is not really well- known due to some people confusing it to the one- party system. The difference is that parties are competing for power but there is a dominant party prevailing for a long period of time. The multiparty system is the type wherein there are more than two parties competing for power. (Heywood, 2002) Philippines is one of those countries using the multiparty system. There are many registered parties in the country but is characterized by low esteem and perceived as â€Å"selfish, dishonest, biased and incapable of recruiting quality leaders†Ã‚  (Lawson, 1989). The situation of political parties in the Philippines according to Rocamora â€Å"are not divided on the basis of long-term upper class interests, much less the interests of the lower classes†(Rocamora, 1997). Instead, â€Å"they are temporary and unstable coalitions of upper class fractions pieced together for elections and post-election battles for patronage. They come together only to put down assertions of lower class interests. The rest of the time they maneuver in particularistic horsetrading and the perennial search for deals.† According to Aceron (2009), Philippine parties are still far from reality as they are performing well the functions of candidate selection, leadership formation, interest aggregation and agenda development, for this reason, this library research paper was written to inform the Filipinos and to persuade them to take an urgent measure to address this big problem by reforming our party system from multi- party to a two- party system. The history of the party system in the country is notable due to Americans intervention during colonial rule (Butwell, 1963). Furthermore, it is said to be historically and culturally rich. The existence of party system can be traced during the Spanish regime. It was happened shortly after the â€Å"Cry of Balintawak† in August 26, 1896. The clash between Emilio Aguinaldo, warlord of Cavite and Andres Bonifacio, founder of Katipunan during the first presidential election created two political parties. The Magdiwang under Bonifacio while the Magdalo lead by Aguinaldo. Soon, the hostility between these to parties reached to its limit and caused the death of Andres Bonifacio . During the war of Philippine Independence (1899- 1902), a rivalry was formed between the ‘pacifists’ led by Dr. Pedro A. Paterno and Felipe Buencamino Sr. and the ‘irreconciliables’ led by Apolinario Mabini and Gen. Antonio Luna. The pacifists favored the American government while the irreconciliables still struggled to achieve independence. (Zaide, 1969) Americans established our party system into a well- organized one. In December 1900, the first political party called Federal Party formed with American authorization due to Federal Party favored the United States over the independence (Zaide, 1957). This party was later dissolved due to failure implementation of its earliest platforms. The remnants of the Federal Party joined together to formed the Partido Nacionalista which the  main objective is to obtain independence. Sergio Osmena was the first Nacionalista leader while Manuel Quezon was the second- in- command. The former Federal Party, now called Partido Progresista was utterly defeated before the elections. The Partido Nacionalista and Partido Progresista were the two major competing parties from 19907 until the early 1930’s. Later, the Progresista dissolved in 1931. Soon after, minor parties made an appearance which did not lasted too long. (Abueva, 1969) There was no opposition party during Japanese occupation (1942- 1946). After the World War II, Nacionalistas broke into two groups: the Nacionalista party and the Liberal party. Former president Elpidio Qurino represented the Liberal party in 1949 presidential election and won. Due to the rumor of denominating of Quirino, the Democratic party was formed in 1953. Carlos P. Romulo, a presidential candidate competed against Ramon Magsaysay of Nacionalista which lead to Magsaysay won the election. After Magsaysay’s death, his supporters formed a party called Progressive Party of the Philippines, later renamed Grand Alliance led by Pres. Carlos P. Garcia. The party was successful at first as it won about 20 percent of the vote in 1957 but in 1961, the national leaders of PPP- GA switched to the more organized Liberal party. Those leaders who switched run for national offices and won in the next elections. (Abueva, 1969) In 1961 presidential election between former presidents Diosdado Macapagal and Carlos Garcia served to reform the nature of Filipino politics specially our party system. Garcia was defeated due to Macapagal’s platforms resemblance to Magsaysay wherein they both believed that economic success in the country can be attained without the intervention of the government. The Nacionalista, however, seeked for rapid industrialization. (Abueva, 1969) In modern era, these parties are described as a â€Å"temporary political alliances† and the worst is being merely a â€Å"fans club† (Aceron, 2009). We cannot blame those people for their comment because this is the truth. Our party and party system can be called to such title but they are really far from what they should be to be able to play their significant role for the development of the Philippines. .Philippine parties are far more different of what political parties should be. It is characterized by a personality and money  based kind of politics with â€Å"selfish, dishonest, biased and incapable of recruiting quality leaders (Lawson, 1989). They do not fulfill the function of representing the people’s need and wishes and interest aggregation. Consequently, the public often views efforts aimed at party-strengthening as mere attempts to further entrench traditional politics and elite interests. This is perhaps the greatest challenge in changing the country’s party syste Philippines parties are described as a â€Å"temporary political alliances† and the worst is being merely a â€Å"fans club† (Aceron, 2009). We cannot blame those people for their comment because this is the truth. Our party and party system can be called to such title but they are really far from what they should be as they are seemingly forgot their significant role for the development of the Philippines. Given the way party politics is practiced in the Philippines, it is no surprise that the impact of political parties has not been favorable to democratization. â€Å"Because of its weaknesses, the party system,† according to Almonte, â€Å"has failed to offer meaningful policy choices—and so to provide for orderly change† (Almonte, 2007). If we follow Nohlen who defines the party system as â€Å"referring to number of parties, relative strength, ideological dimen sions and distances of competing parties† (Nohlen, 1984), the Philippine party system can thus be described as multi-party, fluid, non-ideological, non-participatory and not offering programmatic choices. The multi- party system composed of many political parties competing government position. Thus, this system reduced the opportunity to grab position. One of the important strengths of this system is that â€Å"they create internal checks and balances within government and exhibit a bias in favor of debate, conciliation and compromise† (Heywood, 2002). Coalition formation is the process of maintenance to make sure that the parties’ principles and ideas must be taken account. Unfortunately, this strength can be turned into a flaw if this coalition formation failed. Another problem is the lack of clear ideological alternatives due to a dominated political center. The Philippines as of now is still using the multi- party system. Since political parties were established, our country used the two- party system (Zaide, 1969). The truth is that the Philippines is the only country in which a two- party system has developed since Independence.(Butwell, 1963) It was shown in the history of our country’s party such as in the case of Ramon Magsaysay , a member of Liberal party but he was chosen as a presidential candidate for Nacionalista party. This same goes as well with the late Ferdinand Marcos who also was with the Liberal party but was chosen to be a candidate for the Nacionalistas. Therefore, our party system is characterized by an inter- party switching and this became a common thing among politicians until today.(Kearney, 1975) The two – party system is composed of two major parties seeking government power. Examples of countries using this kind of system are the USA and UK. USA’s Republicans and Democrats are the two major parties. Thus, entailing a greater chance to win. Two- party system is the surest way to achieve an effective, centralized government. This system might lead to a party government which is characterized by stability, choice and accountability. It is an ideal type of system of system to be re placed in the unorganized, decentralized party system. This prevailed in the UK in the 1950’s and 1960’s. But like the multi- party system, it also has its own flaw. One flaw is that what happens if the two major parties tend to be evenly matched collide. It might lead to the voters hesitations or doubts to which party will really represent them. Another flaw is the limited choice of only two programmes each party will propose during election campaigns. Thus, again will give a hard time for the voters to decide. (Heywood, 2002) Japan is another example of a country practicing the two- party system. Their system is highly centralized in terms of structure. The national offices are subdivided into prefectural and local party offices. ( Hinton, 1963) Another reason for changing from the multi- party into a two- party system is that the opposition candidates are using ‘space goat’. They proclaimed all the evil deeds that the administration and as they do so, people believed and sympathized with them. At the time they win in the election, they tend to overlook the simple but significant problems that must be immediately addressed such as land laws, divorce and etc. Thus, the country cannot sacrifice the level of democracy. (Weissenbach, 2010) Parties do not really select their own candidates but instead these candidates only using the party’s power and connections for their own advantage to win the election. (Aceron, 2009)Thus, there is wide gap between standard and  practice in terms of political party. Another concern in the Philippine elections is that it became the process of pure evil doings. Candidates from different parties tend to used money in order to win and voters unfortunately, was being the base of who will they vote and not on what a party’s platforms and leadership credentials. To address this problem, Philippine party- system will be devised into â€Å"personalistic politics and the rule of guns, gold, and goods, and would serve as ‘a ‘germ’ for a parliamentary form of government† (Schwartz, 2001) to achieved a real party – system. This experiment was not successful due to Comelec’s lack of concern for organizational credentials in registering party- list groups. Instead, our party system became more plaque of by issues and controversies. This experiment implies that the country must change into two- party system since the Philippines current party system is not effective enough to represent all Filipinos. This is due that our country has a plurality system which means that the highest number of votes is used to determine the winners. The multi- party system and the plurality system is negatively correlated. For instance, after the Martial Law Filipino voters’s trust for the delicacy of each presidential candidate. Evidences tell that plurality goes well with the two party system since the latter gives a wall of distinction between each parties. In fact, it is expected that a plurality/ majority electoral system will produce a two-party system (Nohlen, 1984). Hence, the combination of the Philippine multi- party system and plurality elections is a flaw combination. With this, parties could hardly develop; simply because the leadership of the government resulting from the elections does not reflect the party performance in the elections. If it was a multi-party system in a proportional representation electoral system, the number of votes garnered by the party determines the number of seats it occupies in the government. But in a plurality election with multi-party system, though an infinite number of political parties is allowed, the result of the elections would  only yield two kinds of parties: a losing party and a winning party. The link between the result of the elections and the configuration of leadership in government is diluted. Another solution they tried is the Republic Act No. 7941 or Party- List Act. It is a law which winners are determined based on the percentage of votes a party gets out of the total number of votes cast for the party list (Aceron, 2009). According to renowned constitutionalist Joaquin Bernas (2007): â€Å"The 1935 Constitution and the Philippine election law up to the 1987 Election Code gave a preferred position to the two major political parties. This was the two-party system. The clear impression, which had emerged from the constitutional scheme prior to the 1987 Constitution was that the electoral system planned and plotted to insure the perpetuation of the party in power. The 1987 Constitution once again makes a try at promoting a multi-party system or open party system. The party-list system, already discussed under Article VI, is meant to be an instrument for fostering the multi-party system. â€Å" As per the evidences presented, the current Philippine party system still lacks of genuine power to work for the common good of our country. Philippines used to be two- party system and as we all know those times were our country proved to be in a good in terms of economy and leadership. Therefore, Philippines must change to two- party system in order to achieve a centralized, effective and organized system that will work for the common good and well- being of their fellow Filipinos without sacrificing the level of democracy.

Wednesday, August 21, 2019

Gothic Fiction and the Separation of Barbaric Past

Gothic Fiction and the Separation of Barbaric Past Gothic fiction challenges the separation between an apparently barbaric past and the civilised world, showing that the two can overlap.Gothic fiction is one of the most outstanding genres of the nineteenth century, the era of a significant societal and technological changes. These changes at that time have greatly contributed to the unique features of the gothic genre. This essay will be showing the overlap between the barbaric past and civilised present by discussing the general overview of the nineteenth century as a developing age and how the savage past was still present in the dark corners of the civilised world, as well as, the popular idea of moral degeneration existed in the period. This essay will also investigate the novella The Strange Case of Dr. Jekyll and Mr. Hyde by Robert Louis Stevenson and the short story The Phantom Coach by Amelia Edwards.[G1][G2] First and foremost, gothic fiction portrays the Victorian society as an advanced period of time in both scientific field and human behaviour. It is the transferring phase between the ancient and the modern world. In this period, the scientific way of thinking replaced magic-based method of explaining. Scientific topics appeared in most gothic fictions from the story of the old scientist in the Phantom Coach to the taste of Dr. Jekyll[G3] being rather chemical than anatomical (Stevenson 1886, p. 32). All reflect the dominant and undeniable existence of science. Its role was so important that people reject as false all that cannot be brought to the test of laboratory or dissecting room (Edwards 1864, p. 4). This is a significant advancement of the Victorian society as their ideas were shaped by logical thinking and scientific developments instead of magical thinking. In the new era, they observed continuous series of new inventions in science and [G4][G5]technology which motivated them to test the nature to prove the reality. To them, an idea or a phenomenon could only be true if it could be tested in the laboratory, thus, they rejected superstitious or supernatural ideas. Moreover, there was an advancement in human behaviour and awareness in that society. In order to maintain their reputation, they had to act responsibly to their good name as can be seen here in Mr. Utterson[G6] who enjoyed the theatre, had not crossed the doors of one for twenty years (Stevenson 1886, p. 3). Based on their occupation and class, they had their own code of conduct which meant what kind of behaviours are accepted and suitable for their class. Characters like Dr. Jekyll, [G7]Mr. Utterson[G8] in Dr. Jekyll and Mr. Hyde[G9][G10] and the lawyer James Murray in the Phantom Coach belong to the higher class in the Victorian society. They live a decent life in a well-to-do neighbourhood and hang out with peers having the same social status. There were certain rules that they had to obey s o that they could be respectable and most importantly, they could not have any desire or enjoy certain pleasures such as [G11]drinking alcohol or visiting prostitutes like people in the lower class. However, the new society was definitely not perfect, it was not entirely civilised because of some remaining factors of the past. Despite the upward changes benefiting the society, some vicious pieces of the past still remain and hide   in the dark. The nineteenth century seemed to be civilised and developed but when taking a closer look, people might find out that the past still lingered in the dark side. Although most of the barbaric elements had already disappeared, they were not completely gone. The existence of Mr. Hyde is a typical example representing the past in London from his physical features to his behaviours. On describing his appearance, Stevenson reveals the following quotes Mr. Hyde was pale and dwarfish, he gave an impression of deformity (Stevenson 1886, p. 19) and he gave Mr. Utterson the feeling of unknown disgust, loathing, and fear ([G12]Stevenson 1886, p. 19). The description of Mr. Hyde evokes the readers a sense of villainy and his bad intention for others. His ugly features are typical to Gothic fictions villain. Corresponding to his outward look, his monstrous behaviours reflec t himself as sinister and barbaric by the act of trampling the girl (Stevenson 1886, p. 6) and the murdering Sir Danvers Carew (Stevenson 1886, p. 28). In an advanced society, people do not use violence to discuss an issue, they use reasons and logic to solve problems. However, Mr. Hyde is not a part of the modern world but having more resemblance to the people in the past who are not fully evolved and tend to be dominated by anger and violence. He usually appeared in the dark night of London, enjoyed degrading pleasures that no gentlemen would ever do without taking into consideration his reputation. In addition, the coming back of the past is most clearly demonstrated in the Phantom Coach. Edwards (Edwards 1864, p. 7) suggests that the existence of brutal past in the modern society through the ghosts with fiery unnatural lustre eyes, livid face and bloodless lips. They suggest the return of the past in the civilised world. In the period when people no longer believe in supernatura l stories, witnessing the corpses carriage is the most obvious evidence for James Murray about the frightening past remaining in the civilised world. They represent the terror and fright existing at dark night. The past does not mean that it has entirely extinct, it shows up when people least expect it. Behind the fanciness of the nineteenth century remaining the decaying past that is hiding in the night and waiting to come back unexpectedly.[G13] It is the idea of degeneration that fosters the existence of the savage past in the developing society. When the society is on its way to be more developed, human behaviour, on the other hand, tends to degrade. Societal and economic advancement brings lots of benefits to the world but at the same time, it restricts humans enjoyment. Stevenson describes Dr. Jekyll[G14] as a person who concealed my pleasures (Stevenson 1886, p. 73) or had learned to dwell with pleasure, as a beloved day-dream (Stevenson 1886, p. 75). He desires to freely enjoy his life without being restrained by the rules, nonetheless, he also wishes to keep his good name as an honourable doctor who is highly respected in the society. The stress from his responsibility and fame has put a strain on Dr. Jekyll to find a way out to [G15]have a desire for himself[G16] without negatively affecting his social status. Therefore, it leads him to create Mr. Hyde. Unfortunately, Mr. Hyde is the downgrade version of human in tha t period from his appearance to behaviour. Contrary to Dr. Jekyll who is described as a tall, fine build of a man ([G17]Stevenson 1886, p. 53), Mr. Hyde was more of a dwarf (Stevenson 1886, p. 53). Furthermore, his inhumane behaviours such as murdering the member of Parliament suggest that Mr. Hyde represents the idea of moral degeneration at the time. He not only arouses a sense of dissipation but his cruel personality also suggests that he is a brutal criminal belonging to the lower class. However, in fact, Mr. Hyde is actually a [G18]moneyed gentleman as what Mr. Enfield calls him (Stevenson 1886, p. 6). He belongs to the same class as Dr. Jekyll [G19]but he is a gentleman representing moral degeneration. Mr. Hyde[G20] is not the only symbol of degeneration; Dr. Jekyll[G21] is as well an example. Stevenson reveals that The powers of Hyde seemed to have grown with the sickliness of Jekyll (Stevenson 1886, p. 93). His separation from his friends, colleagues and his association with a cruel person like Mr. Hyde risks his good reputation[G22]. He also led a downward path of life both physically and morally as he isolated himself from the outside world and lived in the fear of his secret. Dr. Jekyll himself[G23] became degenerating from a respectable gentleman to a fearful person controlled by the savagery of his other personality. In conclusion, taking into consideration the novella The Strange Case of Dr Jekyll and Mr Hyde by Robert Louis Stevenson and the short story The Phantom Coach by Amelia Edwards, it can be seen that gothic fictions demonstrate that within the modern present, the sinister past still lingers in the society and that both of them overlap each other since not one of them is completely overshadow the other. Bibliography Edwards, A. B 1864, The Phantom Coach, Retrieved September 13, 2017 from  http://www.eastoftheweb.com/short-stories/UBooks/PhanCoac.shtml Stevenson, R.L 1886, The Strange Case of Dr. Jekyll and Mr. Hyde[G24][G25], Retrieved 10 January 2016  from http://www.planetebook.com/ebooks/The-Strange-Case-of-Dr- Jekyll.pdf

Tuesday, August 20, 2019

Light Emitting Diode | Dissertation

Light Emitting Diode | Dissertation Introduction Alight-emitting diode(LED) is a semiconductor light source. LEDs are used as indicator lamps in many devices and are increasingly used for other lighting. Introduced as a practical electronic component in 1962, early LEDs emitted low-intensity red light, but modern versions are available across thevisible, ultraviolet and infrared wavelengths, with very high brightness. When a light-emitting diodeis forward biased (switched on), electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. This effect is calledelectroluminescenceand thecolorof the light (corresponding to the energy of the photon) is determined by the energy gap of the semiconductor. An LED is often small in area (less than 1mm2), and integrated optical components may be used to shape its radiation pattern.LEDs present manyadvantagesover incandescent light sources includinglower energy consumption, longerlifetime, improved robustness, smaller size, faster switching, and greater durability and reliability. LEDs powerful enough for room lighting are relatively expensive and require more precise current andheat managementthan compactfluorescent lampsources of comparable output. Light-emitting diodes are used in applications as diverse as replacements foraviation lighting,automotive lighting(particularly brake lamps, turn signals and indicators) as well as intraffic signals. The compact size, the possibility of narrow bandwidth, switching speed, and extreme reliability of LEDs has allowed new text and video displays and sensors to be developed, while their high switching rates are also useful in advanced communications technology.InfraredLEDs are also used in theremote controlunits of many commercial products including televisions, DVD players, and other domestic appliances. History Discoveries and early devices Green electroluminescence from a point contact on a crystal ofSiCrecreatesH. J. Rounds original experiment from 1907. Electroluminescenceas a phenomenon was discovered in 1907 by the British experimenterH. J. RoundofMarconi Labs, using a crystal ofsilicon carbideand acats-whisker detector.RussianOleg Vladimirovich Losevreported on the creation of a first LED in 1927.His research was distributed in Russian, German and British scientific journals, but no practical use was made of the discovery for several decades. Rubin Braunstein of theRadio Corporation of Americareported on infrared emission fromgallium arsenide(GaAs) and other semiconductor alloys in 1955.Braunstein observed infrared emission generated by simple diode structures usinggallium antimonide(GaSb), GaAs,indium phosphide(InP), andsilicon-germanium(SiGe) alloys at room temperature and at 77kelvin. In 1961, American experimenters Robert Biard and Gary Pittman working atTexas Instruments,found that GaAs emitted infrared radiation when electric current was applied and received the patent for the infrared LED. The first practical visible-spectrum (red) LED was developed in 1962 byNick Holonyak Jr., while working atGeneral Electric Company.Holonyak is seen as the father of the light-emitting diode.M. George Craford,a former graduate student of Holonyak, invented the first yellow LED and improved the brightness of red and red-orange LEDs by a factor of ten in 1972. In 1976, T.P. Pearsall created the first high-brightness, high efficiency LEDs for optical fiber telecommunications by inventing new semiconductor materials specifically adapted to optical fiber transmission wavelengths. Until 1968, visible and infrared LEDs were extremely costly, on the order of US $200 per unit, and so had little practical use.TheMonsanto Companywas the first organization to mass-produce visible LEDs, using gallium arsenide phosphide in 1968 to produce red LEDs suitable for indicators. Hewlett Packard(HP) introduced LEDs in 1968, initially using GaAsP supplied by Monsanto. The technology proved to have major uses for alphanumeric displays and was integrated into HPs early handheld calculators. In the 1970s commercially successful LED devices at fewer than five cents each were produced by Fairchild Optoelectronics. These devices employed compound semiconductor chips fabricated with theplanar processinvented by Dr. Jean Hoerni atFairchild Semiconductor.The combination of planar processing for chip fabrication and innovative packaging methods enabled the team at Fairchild led by optoelectronics pioneer Thomas Brandt to achieve the needed cost reductions. These methods continue to be u sed by LED producers. History Of LEDs and LED Technology Light Emitting Diode (LED) Light Emitting Diode (LED) is essentially a PN junction semiconductor diode that emits a monochromatic (single color) light when operated in a forward biased direction. The basic structure of an LED consists of the die or light emitting semiconductor material, a lead frame where the die is actually placed, and the encapsulation epoxy which surrounds and protects the die (Figure 1). The first commercially usable LEDs were developed in the 1960s by combining three primary elements: gallium, arsenic and phosphorus (GaAsP) to obtain a 655nm red light source. Although the luminous intensity was very low with brightness levels of approximately 1-10mcd @ 20mA, they still found use in a variety of applications, primarily as indicators. Following GaAsP, GaP, or gallium phosphide, red LEDs were developed. These devices were found to exhibit very high quantum efficiencies, however, they played only a minor role in the growth of new applications for LEDs. This was due to two reasons: First, the 700nm wavelength emission is in a spectral region where the sensitivity level of the human eye is very low (Figure 2) and therefore, it does not appear to be very bright even though the efficiency is high (the human eye is most responsive to yellow-green light). Second, this high efficiency is only achieved at low currents. As the current increases, the efficiency decreases. This pr oves to be a disadvantage to users such as outdoor message sign manufacturers who typically multiplex their LEDs at high currents to achieve brightness levels similar to that of DC continuous operation. As a result, GaP red LEDs are currently used in only a limited number of applications. As LED technology progressed through the 1970s, additional colors and wavelengths became available. The most common materials were GaP green and red, GaAsP orange or high efficiency red and GaAsP yellow, all of which are still used today (Table3). The trend towards more practical applications was also beginning to develop. LEDs were found in such products as calculators, digital watches and test equipment. Although the reliability of LEDs has always been superior to that of incandescent, neon etc., the failure rate of early devices was much higher than current technology now achieves. This was due in part to the actual component assembly that was primarily manual in nature. Individual operators performed such tasks as dispensing epoxy, placing the die into position, and mixing epoxy all by hand. This resulted in defects such as epoxy slop which caused VF (forward voltage) and VR (reverse voltage) leakage or even shorting of the PN junction. In addition, the growth methods and materia ls used were not as refined as they are today. High numbers of defects in the crystal, substrate and epitaxial layers resulted in reduced efficiency and shorter device lifetimes. Gallium Aluminum Arsenide It wasnt until the 1980s when a new material, GaAlAs (gallium aluminum arsenide) was developed, that a rapid growth in the use ofLEDsbegan to occur. GaAlAs technology provided superior performance over previously availableLEDs. The brightness was over 10 times greater than standardLEDsdue to increased efficiency and multi-layer, heterojunction type structures. The voltage required for operation was lower resulting in a total power savings. TheLEDscould also be easily pulsed or multiplexed. This allowed their use in variable message and outdoor signs.LEDswere also designed into such applications as bar code scanners, fiber optic data transmission systems, and medical equipment. Although this was a major breakthrough inLEDtechnology, there were still significant drawbacks to GaAlAs material. First, it was only available in a red 660nm wavelength. Second, the light output degradation of GaAlAs is greater than that of standard technology. It has long been a misconception withLEDsthat lig ht output will decrease by 50% after 100,000 hours of operation. In fact, some GaAlAsLEDsmay decrease by 50% after only 50,000 -70,000 hours of operation. This is especially true in high temperature and/or high humidity environments. Also during this time, yellow, green and orange saw only a minor improvement in brightness and efficiency which was primarily due to improvements in crystal growth and optics design. The basic structure of the material remained relatively unchanged. To overcome these difficult issues new technology was needed.LEDdesigners turned to laser diode technology for solutions. In parallel with the rapid developments inLEDtechnology, laser diode technology had also been making progress. In the late 1980s laser diodes with output in the visible spectrum began to be commercially produced for applications such as bar code readers, measurement and alignment systems and next generation storage systems.LEDdesigners looked to using similar techniques to produce high brightness and high reliabilityLEDs. This led to the development of InGaAlP (Indium Gallium Aluminum Phosphide) visibleLEDs. The use of InGaAlP as the luminescent material allowed flexibility in the design ofLEDoutput color simply by adjusting the size of the energy band gap. Thus, green, yellow, orange and redLEDsall could be produced using the same basic technology. Additionally, light output degradation of InGaAlP material is significantly improved even at elevated temperature an d humidity. Current Developments of LED Technology InGaAlPLEDstook a further leap in brightness with a new development by Toshiba, a leading manufacturer ofLEDs. Toshiba, using the MOCVD (Metal Oxide Chemical Vapor Deposition) growth process, was able to produce a device structure that reflected 90% or more of the generated light traveling from the active layer to the substrate back as useful light output (Figure 4). This allowed for an almost two-fold increase in theLEDluminance over conventional devices.LEDperformance was further improved by introducing a current blocking layer into theLEDstructure (Figure 5). This blocking layer essentially channels the current through the device to achieve better device efficiency. As a result of these developments, much of the growth forLEDsin the 1990s will be concentrated in three main areas: The first is in traffic control devices such as stop lights, pedestrian signals, barricade lights and road hazard signs. The second is in variable message signs such as the one located in Times Square New York which displays commodities, news and other information. The third concentration would be in automotive applications. The visibleLEDhas come a long way since its introduction almost 30 years ago and has yet to show any signs of slowing down. A BlueLED, which has only recently become available in production quantities, will result in an entire generation of new applications. BlueLEDsbecause of their high photon energies (>2.5eV) and relatively low eye sensitivity have always been difficult to manufacture. In addition the technology necessary to fabricate theseLEDsis very different and far less advanced than standardLEDmaterials. The blueLEDsavailable today consist of GaN (gallium nitride) and SiC (silicon carbide) construction with brightness levels in excess of 1000mcd @ 20mA for GaN devices. Since blue is one of the primary colors, (the other two being red and green), full color solid stateLEDsigns, TVs etc. will soon become commercially available. Full colorLEDsigns have already been manufactured on a small prototype basis, however, due to the high price of blueLEDs, it is still not practical on a large scale. Other applications for blueLEDsinclude medical diagnostic equipment and photolithography. LED Colors It is also possible to produce other colors using the same basic GaN technology and growth processes. For example, a high brightness green (approximately 500nm)LEDhas been developed that is currently being evaluated for use as a replacement to the green bulb in traffic lights. Other colors including purple and white are also possible. With the recent introduction of blueLEDs, it is now possible to produce white by selectively combining the proper combination of red, green and blue light. This process however, requires sophisticated software and hardware design to implement. In addition, the brightness level is low and the overall light output of each RGB die being used degrades at a different rate resulting in an eventual color unbalance. Another approach being taken to achieve white light output, is to use a phosphor layer (Yttrium Aluminum Garnet) on the surface of a blueLED. In summary,LEDshave gone from infancy to adolescence and are experiencing some of the most rapid market growth of their lifetime. By using InGaAlP material with MOCVD as the growth process, combined with efficient delivery of generated light and efficient use of injected current, some of the brightest, most efficient and most reliableLEDsare now available. This technology together with other novelLEDstructures will ensure wide application ofLEDs. New developments in the blue spectrum and on white light output will also guarantee the continued increase in applications of these economical light sources. Practical use The first commercial LEDs were commonly used as replacements forincandescentandneonindicator lamps, and inseven-segment displays,first in expensive equipment such as laboratory and electronics test equipment, then later in such appliances as TVs, radios, telephones, calculators, and even watches (see list ofsignal uses). These red LEDs were bright enough only for use as indicators, as the light output was not enough to illuminate an area. Readouts in calculators were so small that plastic lenses were built over each digit to make them legible. Later, other colors grew widely available and also appeared in appliances and equipment. As LED materials technology grew more advanced, light output rose, while maintaining efficiency and reliability at acceptable levels. The invention and development of the high power white light LED led to use for illumination, which is fast replacing incandescent and fluorescent lighting. (see list ofillumination applications). Most LEDs were made in the ve ry common 5mm T1 ¾ and 3mm T1 packages, but with rising power output, it has grown increasingly necessary to shed excess heat to maintain reliability,so more complex packages have been adapted for efficient heat dissipation. Packages for state-of-the-arthigh power LEDsbear little resemblance to early LEDs. Continuing development The first high-brightness blue LED was demonstrated byShuji NakamuraofNichia Corporationand was based onInGaNborrowing on critical developments inGaNnucleation on sapphire substrates and the demonstration of p-type doping of GaN which were developed byIsamu Akasakiand H. Amano inNagoya. In 1995,Alberto Barbieriat theCardiff UniversityLaboratory (GB) investigated the efficiency and reliability of high-brightness LEDs and demonstrated a very impressive result by using a transparent contact made ofindium tin oxide(ITO) on (AlGaInP/GaAs) LED. The existence of blue LEDs and high efficiency LEDs quickly led to the development of the firstwhite LED, which employed aY3Al5O12:Ce, or YAG, phosphor coating to mix yellow (down-converted) light with blue to produce light that appears white. Nakamura was awarded the 2006Millennium Technology Prizefor his invention. The development of LED technology has caused their efficiency and light output torise exponentially, with a doubling occurring about every 36 months since the 1960s, in a way similar toMoores law. The advances are generally attributed to the parallel development of other semiconductor technologies and advances in optics and material science. This trend is normally calledHaitzs Lawafter Dr. Roland Haitz. In February 2008, 300lumensof visible light per wattluminous efficacy(not per electrical watt) and warm-light emission was achieved by usingnanocrystals. In 2009, a process for growing gallium nitride (GaN) LEDs on silicon has been reported.Epitaxycosts could be reduced by up to 90% using six-inch silicon wafers instead of two-inch sapphire wafers. Illustration of Haitzs Law. Light output per LED as a function of production year, note the logarithmic scale on the vertical axis Technology Physics The LED consists of a chip of semiconducting materialdopedwith impurities to create ap-n junction. As in other diodes, current flows easily from the p-side, oranode, to the n-side, orcathode, but not in the reverse direction. Charge-carriers—electronsandholes—flow into the junction fromelectrodeswith different voltages. When an electron meets a hole, it falls into a lowerenergy level, and releasesenergyin the form of a photon. Thewavelengthof the light emitted, and thus its color depends on theband gapenergy of the materials forming thep-n junction. Insiliconor germaniumdiodes, the electrons and holes recombine by anon-radiative transitionwhich produces no optical emission, because these are indirect band gapmaterials. The materials used for the LED have adirect band gapwith energies corresponding to near-infrared, visible or near-ultraviolet light. LED development began with infrared and red devices made withgallium arsenide. Advances inmaterials sciencehave enabled making devices with ever-shorter wavelengths, emitting light in a variety of colors. LEDs are usually built on an n-type substrate, with an electrode attached to the p-type layer deposited on its surface. P-type substrates, while less common, occur as well. Many commercial LEDs, especially GaN/InGaN, also usesapphiresubstrate. Most materials used for LED production have very highrefractive indices. This means that much light will be reflected back into the material at the material/air surface interface. Thus,light extraction in LEDsis an important aspect of LED production, subject to much research and development. The inner workings of an LED I-V diagram for adiode. An LED will begin to emit light when the on-voltageis exceeded. Typical on voltages are 2-3volts. Refractive Index Idealized example of light emission cones in a semiconductor, for a single point-source emission zone. The left illustration is for a fully translucent wafer, while the right illustration shows the half-cones formed when the bottom layer is fully opaque. The light is actually emitted equally in all directions from the point-source, so the areas between the cones shows the large amount of trapped light energy that is wasted as heat. The light emission cones of a real LED wafer are far more complex than a single point-source light emission. Typically the light emission zone is a 2D plane between the wafers. Across this 2D plane, there is effectively a separate set of emission cones for every atom. Drawing the billions of overlapping cones is impossible, so this is a simplified diagram showing the extents of all the emission cones combined. The larger side cones are clipped to show the interior features and reduce image complexity; they would extend to the opposite edges of the 2D emission plane. Bare uncoated semiconductors such assiliconexhibit a very highrefractive indexrelative to open air, which prevents passage of photons at sharp angles relative to the air-contacting surface of the semiconductor. This property affects both the light-emission efficiency of LEDs as well as the light-absorption efficiency ofphotovoltaic cells. The refractive index of silicon is 4.24, while air is 1.00002926. Generally a flat-surfaced uncoated LED semiconductor chip will only emit light perpendicular to the semiconductors surface, and a few degrees to the side, in a cone shape referred to as thelight cone,cone of light,or theescape cone.The maximumangle of incidenceis referred to as thecritical angle. When this angle is exceeded photons no longer penetrate the semiconductor, but are instead reflected both internally inside the semiconductor crystal, and externally off the surface of the crystal as if it were amirror. Internal reflectionscan escape through other crystalline faces, if the incidence angle is low enough and the crystal is sufficiently transparent to not re-absorb the photon emission. But for a simple square LED with 90-degree angled surfaces on all sides, the faces all act as equal angle mirrors. In this case the light cannot escape and is lost as waste heat in the crystal. A convoluted chip surface with angledfacetssimilar to a jewel orfresnel lenscan increase light output by allowing light to be emitted perpendicular to the chip surface while far to the sides of the photon emission point. The ideal shape of a semiconductor with maximum light output would be amicrospherewith the photon emission occurring at the exact center, with electrodes penetrating to the center to contact at the emission point. All light rays emanating from the center would be perpendicular to the entire surface of the sphere, resulting in no internal reflections. A hemispherical semiconductor would also work, with the flat back-surface serving as a mirror to back-scattered photons. Transition coatings Many LED semiconductor chips arepottedin clear or colored molded plastic shells. The plastic shell has three purposes: 1. Mounting the semiconductor chip in devices is easier to accomplish. 2. The tiny fragile electrical wiring is physically supported and protected from damage 3. The plastic acts as a refractive intermediary between the relatively high-index semiconductor and low-index open air. The third feature helps to boost the light emission from the semiconductor by acting as a diffusing lens, allowing light to be emitted at a much higher angle of incidence from the light cone, than the bare chip is able to emit alone. Efficiency and operational parameters Typical indicator LEDs are designed to operate with no more than 30-60mWof electrical power. Around 1999,Philips Lumiledsintroduced power LEDs capable of continuous use at oneW. These LEDs used much larger semiconductor die sizes to handle the large power inputs. Also, the semiconductor dies were mounted onto metal slugs to allow for heat removal from the LED die. One of the key advantages of LED-based lighting is its high efficacy,[dubious-discuss]as measured by its light output per unit power input. White LEDs quickly matched and overtook the efficacy of standard incandescent lighting systems. In 2002, Lumileds made five-watt LEDs available with aluminous efficacyof 18-22 lumens per watt (lm/W). For comparison, a conventional 60-100 Wincandescent light bulbemits around 15 lm/W, and standardfluorescent lightsemit up to 100 lm/W. A recurring problem is that efficacy falls sharply with rising current. This effect is known asdroopand effectively limits the light output of a given LED, raising heating more than light output for higher current. In September 2003, a new type of blue LED was demonstrated by the companyCree Inc.to provide 24mW at 20milliamperes(mA). This produced a commercially packaged white light giving 65 lm/W at 20 mA, becoming the brightest white LED commercially available at the time, and more than four times as efficient as standard incandescents. In 2006, they demonstrated a prototype with a record white LED luminous efficacy of 131 lm/W at 20 mA. Also,Seoul Semiconductorplans for 135 lm/W by 2007 and 145 lm/W by 2008,which would be nearing an order of magnitude improvement over standard incandescents and better than even standard fluorescents.Nichia Corporationhas developed a white LED with luminous efficacy of 150 lm/W at a forward current of 20 mA. Practical general lighting needs high-power LEDs, of one watt or more. Typical operating currents for such devices begin at 350 mA. Note that these efficiencies are for the LED chip only, held at low temperature in a lab. Lighting works at higher temperature and with drive circuit losses, so efficiencies are much lower.United States Department of Energy(DOE) testing of commercial LED lamps designed to replace incandescent lamps orCFLsshowed that average efficacy was still about 46 lm/W in 2009 (tested performance ranged from 17lm/W to 79lm/W). Cree issued a press release on February 3, 2010 about a laboratory prototype LED achieving 208 lumens per watt at room temperature. The correlatedcolor temperaturewas reported to be 4579K. Lifetime and failure Main article:List of LED failure modes Solid state devices such as LEDs are subject to very limitedwear and tearif operated at low currents and at low temperatures. Many of the LEDs made in the 1970s and 1980s are still in service today. Typical lifetimes quoted are 25,000 to 100,000 hours but heat and current settings can extend or shorten this time significantly. The most common symptom of LED (anddiode laser) failure is the gradual lowering of light output and loss of efficiency. Sudden failures, although rare, can occur as well. Early red LEDs were notable for their short lifetime. With the development of high-power LEDs the devices are subjected to higherjunction temperaturesand higher current densities than traditional devices. This causes stress on the material and may cause early light-output degradation. To quantitatively classify lifetime in a standardized manner it has been suggested to use the terms L75 and L50 which is the time it will take a given LED to reach 75% and 50% light output respectively. Like other lighting devices, LED performance is temperature dependent. Most manufacturers published ratings of LEDs are for an operating temperature of 25 °C. LEDs used outdoors, such as traffic signals or in-pavement signal lights, and that are utilized in climates where the temperature within the luminaire gets very hot, could result in low signal intensities or even failure. LED light output actually rises at colder temperatures (leveling off depending on type at around −30C). Consequently, LED technology may be a good replacement in uses such as supermarket freezer lightingand will last longer than other technologies. Because LEDs emit less heat than incandescent bulbs, they are an energy-efficient technology for uses such as freezers. However, because they emit little heat, ice and snow may build up on the LED luminaire in colder climates.This lack of waste heat generation has been observed to cause sometimes significant problems with street traffic signals and airport runway lighting in snow-prone areas, although some research has been done to try to develop heat sink technologies to transfer heat to other areas of the luminaire. Ultraviolet and blue LEDs BlueLEDs. Blue LEDs are based on the wideband gapsemiconductors GaN (gallium nitride) andInGaN(indium gallium nitride). They can be added to existing red and green LEDs to produce the impression of white light, though white LEDs today rarely use this principle. The first blue LEDs were made in 1971 by Jacques Pankove (inventor of the gallium nitride LED) atRCA Laboratories.These devices had too little light output to be of much practical use. In August of 1989, Cree Inc. introduced the first commercially available blue LED.In the late 1980s, key breakthroughs in GaNepitaxialgrowth andp-typedoping ushered in the modern era of GaN-based optoelectronic devices. Building upon this foundation, in 1993 high brightness blue LEDs were demonstrated. By the late 1990s, blue LEDs had become widely available. They have an active region consisting of one or more InGaNquantum wellssandwiched between thicker layers of GaN, called cladding layers. By varying the relative InN-GaN fraction in the InGaN quantum wells, the light emission can be varied from violet to amber. AlGaNaluminium gallium nitrideof varying AlN fraction can be used to manufacture the cladding and quantum well layers for ultraviolet LEDs, but these devices have not yet reached the level of efficiency and technological maturity of the InGaN-GaN blue/green devices. If the active quantum well layers are GaN, instead of alloyed InGaN or AlGaN, the device will emit near-ultraviolet light with wavelengths around 350-370nm. Green LEDs manufactured from the InGaN-GaN system are far more efficient and brighter than green LEDs produced with non-nitride material systems. With nitrides containing aluminium, most oftenAlGaNandAlGaInN, even shorter wavelengths are achievable. Ultraviolet LEDs in a range of wavelengths are becoming available on the market. Near-UV emitters at wavelengths around 375-395nm are already cheap and often encountered, for example, asblack lightlamp replacements for inspection of anti-counterfeitingUV watermarks in some documents and paper currencies. Shorter wavelength diodes, while substantially more expensive, are commercially available for wavelengths down to 247nm.As the photosensitivity of microorganisms approximately matches the absorption spectrum ofDNA, with a peak at about 260nm, UV LED emitting at 250-270nm are to be expected in prospective disinfection and sterilization devices. Recent research has shown that commercially available UVA LEDs (365nm) are already effective disinfection and sterilization devices. Deep-UV wavelengths were obtained in laboratories usingaluminium nitride(210nm),boron nitride(215nm)anddiamond(235nm). White light There are two primary ways of producing high intensity white-light using LEDs. One is to use individual LEDs that emit threeprimary colors—red, green, and blue—and then mix all the colors to form white light. The other is to use a phosphor material to convert monochromatic light from a blue or UV LED to broad-spectrum white light, much in the same way a fluorescent light bulb works. Due tometamerism, it is possible to have quite different spectra that appear white. RGB systems Combined spectral curves for blue, yellow-green, and high brightness red solid-state semiconductor LEDs.FWHMspectral bandwidth is approximately 24-27 nm for all three colors. White lightcan be formed by mixing differently colored lights, the most common method is to usered, green and blue(RGB). Hence the Care Of Diabetic Foot: How To Prevent Amputation Care Of Diabetic Foot: How To Prevent Amputation Introduction Diabetes mellitus is defined as a metabolic disorder characterised by chronic hyperglycaemia with metabolism disturbances in carbohydrate, protein and fat because of defects in insulin secretion, insulin action, or both (SIGN 2010). Diabetes mellitus is one of the main causes of increasing morbidity and mortality in Scotland and worldwide every years (SIGN 2010). Diabetes leads to several problems that begins with many of symptoms and debility on the short term and ending with a wide complications such as blindness, renal failure and amputation. Furthermore, diabetes has a significant impact on increasing the mortality and premature death from cardiovascular disease such as stroke and myocardial infarction (Massi-Benedetti 2002). Globally, the international diabetes federation (IDF) estimated the number of adults (between 20 79 years) with diabetes mellitus disease in 2010 around 285 million in seven regions of the IDF, and estimated the percent of adults with diabetes in 2010 in Europe 8.6%, United Kingdom 4.9%, United States of America 12.3% and similarly at both Jordan and Libyan Arab Jamahiriya 7.5% (IDF Diabetes Atlas 2010). And to the same years, the IDF estimated that the number of deaths due to diabetes mellitus is approximately 3.9 million deaths annually which represents 6.8% of all total global mortality (IDF 2009) . Moreover the number of people who have diabetes were approximately 39 million in 2007 and the expected gradual increase 439 million in 2030 (IDF 2009).Furthermore, in another study the IDF estimated that 23 million years of life are lost due to disability, decrease quality of life and reduce lifespan of person as a result of complications related to diabetes (Egede and Ellis, 2010). T he cost of treating and preventing diabetes globally in 2007 was approximately $ 232 billion, this number is expected to increase to over $300 billion in 2025 (Egede and Ellis, 2010). The United State of America spent in 2002 around $132 billion on diabetes (Egede 2006), and spent around $10.9 billion in 2001 on treating diabetic foot ulceration and amputations (Gordois et al. 2003). Also, The United Kingdom spent in 2001 approximately 5% of the total National Health Service (NHS) expenditure ( £3 billion) on diabetes mellitus (Wild et al. 2004). The Diabetic foot complications cost the United Kingdom approximately  £252 million each year (Adam et al. 2003). Every 30 seconds a lower extremity is lost in patients with diabetes due to amputation in the world (IDF 2009). Additionally, around 5% of European population suffer from Type 2 diabetes mellitus (IDF Diabetes Atlas 2007). India was the country with the highest numbers of patients with diabetes mellitus in Asia (Wild et al. 2004). The complications of diabetes remain very common in the developing countries such as diabetic foot and amputations (IDF 2005) the same as other developing countries in the world. Boulton et al (2005) identified that there are several factors that contribute to the increase complications and incidence of diabetic foot; these include late discovery of the disease and diabetic foot complications; the presence of catalysts such as neuropathy and high infected complications helps, moreover, deficiencies in podiatry service in most countries, barefoot gait which is common in some cultures and some of social beliefs and cultural traditions which are still in control of some communities and drives patients with diabetes to use and to depended on traditional healers, village elders and alternative medicine for treating themselves . In Sub-Saharan Africa, which contains 33 countries from the list of 50 poorest countries in the world; these countries are facing a significant increase in the rate of diabetes during the next twenty years (Wild et al. 2004). Diabetic foot complications are a major cause of increasing public health problem, leading cause of admissions to hospitals, amputation and increased mortality rate in diabetic patients (Zulfiqarali and Lennox, 2005). The main reasons leading to increase rate of diabetic foot in Africa were the frequency of neuropathy and peripheral vascular disease, unhygienic conditions, poverty, barefoot gait and inappropriate foot wear, low income, urbanisation, frequent co-existing HIV infection, and cultural beliefs and incorrect practices (Boulton et al. 2005). Risk of developing foot ulcers during lifetime of diabetes patient is approximately as high as 25 % (Singh et al. 2005). The International Diabetes Foundation confirmed that awareness regarding foot complications must be increased between diabetic patients because of its positive impact on personal, social, medical, and economic costs (Boulton 2004). Implementing screening, educational, and treatment programs globally in every area of the world was the biggest challenge facing the Global Diabetes Community (Boulton et al. 2005). A diabetic patient faces many problems caused by diabetic foot such as pain, morbidity and substantial economic consequences. The infection rate by diabetic foot differs between developing and developed countries and between European countries. Globally 25%-90% of all amputations were caused by diabetes (Boulton et al. 2005). The cost of treating diabetic foot ulcers was affected by the implementations of some interventions to prevent the development of foot ulcers, care strategies to heal ulcers or wound to prevent inflammation and amputation, shorten period of wound healing, and by frequent care necessary for disability after amputation (Tennvall and Apelqvist, 2004). In Europe and North America 7-20% from of the total expenditure is spent on diabetes and more precisely on the diabetic foot care (Boulton et al. 2005). In a Swedish prospective study it was estimated that diabetic patient with foot ulcers cost around 37% of the total costs on foot ulcers care until healed without amputation but if the patient needs amputation the inpatient care will cost up to 65% of the total costs, and also costs around 45% of the total costs using topical treatment of wounds but this percentage changes to 13% in patients with amputation (Boulton et al. 2005). The economic costs of minor lower limb amputation (foot level) such as toes around $43,800 and for main lower limb amputation (above ankle) such as all foot around $66,215, of which 77% of the costs comes post-amputation (Boulton et al. 2005). Applying foot-care services such as screening, education, treatment can effectively the rate of amputation among diabetes patients (Boulton et al. 2005). Furthermore, treatment of diabetic patients with or without diabetic foot according to the present management guidelines would result in enhanced survival and significantly reduced number of diabetic foot complications. Furthermore, it leads to significant reduction of up to 25-40% from the total economic costs of treating ulceration and amputation (Ortegon et al. 2004). Also, the adherence of diabetes patient to education and treatment is very important, effective and playing important role to prevent diabetes complication and improvement of patient health (Boulton et al. 2005). Aims and objectives Aims: To create more awareness of diabetic foot complication and foot care. To promote foot health in individual with diabetes and minimise the risk of foot complication. To identify major causes that lead to foot ulcers and how to prevent them. To inform people with diabetes about the actions and measures they can take to prevent occurrence of foot complications, provide diabetes self care education and encourage patients to change their behaviours to enhance foot hygiene and appropriate foot wear. To inform patients how to look after their wounds or ulcers. To reduce risk of lower extremity complication and amputation between diabetic patients. To try and improve the flow of information and intervention between patients and health care specialists. To enhance communication between diabetic patients and multidisciplinary care team. Objectives: Educate diabetic patient about good foot hygiene, diabetes risk factors, wound care, and about appropriate foot wear. Provide education about foot care by regular monitoring identification and early detection of ulcers, determination of risk factors such as (Neuropathy, Ischemia, Deformity, Callus, Oedema). Educate patient about the risk factors that can are increase diabetic foot complications such as poor fittings shoes, smoking, obesity, blood pressure, high lipids, aging and positive history to ulcers or amputation. Educate patient about proper footwear, nails care and wound care. Outcomes: Patient will have good circulation to feet. Patient will identify and take action when injury occurs. Patient will know how to take care of his feet. Patient will be able to determine the risk factors to diabetes ulceration and lower limb amputation. Patient will identify and select appropriate foot wear. Patient will be able to identify the importance of wound care, early detection of ulcers, good diet and exercise, regular monitoring and assessment of foot, adjust the level of sugar in the blood and stop smoking. Interventions Worldwide, 3.2 million deaths reported in relation to diabetes complications every year, also one in twenty deaths in the world due to diabetes resulting in 8700 deaths daily, this is equivalent to 6 deaths every minute (Unwin and Marlin, 2004). Study was estimated incidence of foot ulcers each year to diabetes patient around 2-6%, a prevalence of 3-8%, also estimated recurrence rates of ulcers within 5 years approximately 50-70%, the average of healing ulcers of 11-14weeks and the rates of incident of amputation after a one year estimated by 15%. However, the cost of diabetic foot include direct costs related to foot complications and also indirect costs related to loss of productivity, patient and family economic costs and loss of quality of life (Boulton et al. 2005). In a prospective study following up patients after foot ulcer healing, explained the return ulceration rates to patient after 1 years was 34%, at 3 years was 61% and at 5 years 70%. The diabetic patients with recurre nt ulcers, the highest costs were for hospitalise care, social services, and self care in home (Boulton et al. 2005). Diabetic foot complications are very common worldwide; it leads to social, political and economic impacts on society, patients and their families (Boulton et al. 2005). When Paul Brand was asked to suggest a recommendation to reduce amputations and foot complications in diabetes patient to the US Department of Health conference, most of the attendees were probably expecting an answer of both either promoting vascular surgery or modern medications, but they were surprised to hear that his answer was the recommendation to encourage health care professionals and caregivers to remove patients shoes, socks and after that examine and assess feet, many countries in the world ignored these recommendations. Although, the assessment of foot does not require expensive equipment for example a tuning fork, pin, tendon hammer and 10g monofilament these are cheap and suffice(Boulton 2004; Singh et al. 2005). The education should be focused on the diabetic patients with high risk feet. Furthermore, when planning an educational programme the caregivers should not forget that many patients donated are unable to understand what neuropathy, nephropathy, ischemia or risks of foot ulcers means (Vileikyte et al. 2004). Because of that the education should be simple, easy to understand by patients and suitable for the culture and social background of the patient (Boulton et al. 2005). First: Risk Factors One amputation occurs every 30 seconds worldwide between diabetic patients (Bakker et al. 2005). Approximately 15% of diabetic patients develop foot ulcers (Edmonds 2008). Amputation occurs more with diabetes patient than patient without diabetes (SIGN 2010). Three main pathologies factors must be met for the beginning and stimulation development of diabetic foot complications: neuropath, ischemia and infection. Furthermore, People with diabetes mellitus are higher to develop lower limb amputation between 15-46 times more than people without diabetes mellitus (Wilson 2005). Neuropathy is the most frequent and common complications in diabetic patients. It affects around 50% from all diabetic patients (Wilson 2005). The danger lies in the loss of protective sensation to pain, thus patient feel or recognise the pain or any discomfort in the lower extremity (Urbancic-Rovan, 2005). Ischaemia is four times more common in people with diabetes than in people without diabetes. Some of the factors that lead to increased occurrence of ischaemia were smoking, hypertension and hyperlipidaemia. Usually it develops gradually and slowly in diabetic patients, but in the end leads to a severe decrease in arterial perfusion and results in compromising vascular supply of the skin, and most often leads to a minor or major trauma in the lower extremity (Wilson 2005). Ischaemia and neuropathy are mostly associated together in diabetic patient (Edmonds and Foster, 2005) Infection of wound or ulcers in diabetes patient is the main reason for admission to hospital, and also increasing the incidence of amputation, when the infection is associated with neuropathy and ischaemia it leads to higher incidence of infection without pain, furthermore, leads to the loss of some of the inflammatory response such as increased temperature and white blood cell count (Wilson 2005). Additionally risk factors identified by (Urbancic-Rovan, 2005) that can effect diabetes patient and lead to ulceration and lower extremity amputation includes: Foot deformity because of motor neuropathy and muscle atrophy. Callus growth and formation. Disability in joint mobility. Reduced metabolic control leading to impaired wound or ulcer healing. Positive history to foot ulcer or lower limb amputation. Autonomic neuropathy that leads to gradually decreased sweating and dry fissured skin in foot. Obesity. Retinopathy. Inappropriate footwear. Smoking. Older people. Socioeconomic status. Interventions: Early detection and screening in addition to appropriate management of these ulcers can lead to preventing up to 85% of amputation (Edmonds and Foster, 2005). To provide effective treatment and management the patient should know and understand the major causes and risk factors for ulceration and amputation, meticulous treatment plan and should have frequent routine screening (Wilson 2005). Moreover, regular screening and assessment for feet of diabetes patient give the patient the opportunity of up to 99.6% to keep his feet free from ulcerations (follow up at 1.7 years) and were 83 times less probable to incident ulcers than the high- risk group (SIGN 2010). Teaching patients about the metabolic management, such as the control of blood glucose by regular diet, exercise, insulin and medication to protect neurological function. Patient should be educated on how to treat blood pressure, high lipids and should be encouraged to stop smoking to preserve cardiovascular function, prevent the occurrences of ischemia and enhance blood supply to lower extremity (Edmonds 2008). Encourage diabetic patient to daily foot examination and inspection, full monitoring of his feet by specialist diabetes doctor or nurse every 4 months and full screening and examination test every 6 month (Michael et al. 2005). All diabetes patients when diagnosed with diabetes mellitus should be educated and encouraged to be screen and examine his foot regularly or at least annually to detect any risk factors for foot ulcers as early as possible (Edmonds 2008). And to assess their risk of beginning a foot ulcer complication (SIGN 2010). patients should be screened for the main risk factors which include: Neuropathy, which is the most common complication of diabetes mellitus and begins to produce primitive signs that emerge within 5 years of the onset of the disease (Hampton 2006). The neuropathy can be assessed by the use simple techniques such as 10g monofilament to assess pressure sensation in patient. On the other hand, the use of vibration perception threshold by using a neurothesiometer to assess patients (Edmonds 2008). Because the vibration perception threshold is more sensitive than the 10g monofilament especially in persons at risk for foot ulcers (Miranda-Palma et al. 2005). Ischaemia assessed by palpation of the dorsalis pedis or posterior tibial pulse, if it cannot be felt it is unlikely that there is significant ischaemia. So the significant factor indicating ischaemia is the reduced Doppler arterial waveform. But the American Diabetes Association (ADA) recommended that the ankle-brachial pressure index (ABPI) should be measured for all diabetic patient especially patients above 50 years of age (Edmonds 2008). Faglia et al (2005) showed in his study that 21% of the occurrence of peripheral arterial disease was indicated by a low ABPI in recently diagnosed diabetic patients. Deformity such as claw toes, pes cavus, hallux valgus, hallux rigidus, hammer toe, Charcot foot and nail deformities; these deformities lead to bony prominences and causes high mechanical pressures on the skin surface, thus leads to ulceration, especially in the absence of protective pain sensation and feeling, and when wearing inappropriate shoes. Thus any diabetes patient, who has any deformities, should be educated how to care for his feet (Edmonds 2008). Callus and Oedema: the presence of callus leads to ulceration because of the high pressure and friction on it. Also the oedema is the main factor causing ulceration, and often produced when patient is wearing inappropriate and poorly fitting shoes (Edmonds 2008). Diabetic patient should be educated about signs of infection. Swelling, redness and hotness, all of this are present with signs of systemic infections. Patient must visit a medical clinic immediately (Michael et al. 2005). Second: Foot care Diabetic foot complications are common complications between United Kingdome populations, according to statistics, 23-42% related to neuropathy, 9-23% vascular disease and 5-7% foot ulceration (SIGN 2010). Diabetic foot care guideline is very important and should be the main part of basic diabetic patient education programs and workshops (Michael et al. 2005). Interventions: Diabetes patient and caregivers nurses or physician should be taught the nail cutting techniques (Michael et al. 2005). Nails of diabetes patient should be cut when they are softer and flexible, therefore, the patient should cut his nails after a bath or shower; the patient should never try to cut the whole nail as one piece, cut out the corner of the nail or more down the sides of nail (Edmonds 2008). Patient should be educated to use the soft brush to clean about the nails and if the nails become thick, the nails care should be performed by a professional nurse or physician (Michael et al. 2005). Patient education regarding foot hygiene, nail care, general assessment of foot care and patient should know when and how to ask for help when having any symptoms, problems or any suspicions around his foot (Wilson 2005). Encourage patient to wear natural fibre socks, it is better to be white to simply detect any derange or bleeding from foot (Michael et al. 2005). Footwear may reduce the rate of amputation by 50% when it is used perfectly (Bloomgarden 2008). Footwear (shoes) should be padded with soft leather from the inside and have a broad rounded toes, with an elevated toe box, the heels must be low to prevent excessive pressure on toes, and they must be the appropriate size to prevent movement and friction within the shoe (Edmonds 2008). If the diabetic patient has any deformity in his foot it should be detected early and appropriate shoes selected before any complication occurs. The diabetes foot wear included to three main types: Sensible shoes it is used to protect diabetic patient with partial loss of sensation (low risk to develop foot ulceration). Readymade stock shoes it is used to patient who has few deformities, neuroischaemic feet and that needs to be protected almost all the time (moderate risk to develop foot ulceration). Customized shoes it is made specifically for patients with deformities and contains appropriate insoles to relieve pressure on the foot (Edmonds 2008). The custom-built footwear should be used to decrease callus severity and reduce ulcer repetition (SIGN 2010). Diabetic patient who have lost protective sensation and cannot feel normally in lower extremity should be protecting their feet from any mechanical, thermal, chimerical injury because of that they should be encouraged to develop a habit of regularly examining and inspecting their feet to detect any problem or complication early. In addition should be educated about type 2 diabetes to protect themselves as far as possible to avoid the occurrence of any injury (Edmonds 2008). If patient have lost their sensation in the lower extremity, recurring trauma, limited joint mobility, poor healing and have ischaemia in lower limb, all of this lead to increased incidence of ulceration and in addition amputation (Bloomgarden 2008). Should educate diabetic patients how to prevent dry skin to prevent ulceration, by applying emollient or lotion such as E45 cream on a daily basis (Reckitt Benckiser, Slough) or Calmurid cream (Galderma, Watford) (Edmonds 2008). Patient should be encouraged to use daily oil, lotion and lanolin cream to prevent dryness of skin (Michael et al. 2005). If patients have callus they should be educated not to cut their callus or use any product to remove it. Also the callus should be removed gradually by podiatrist to prevent ulceration (Edmonds 2008). Patient should not use any removers to remove corns or callus (Michael et al. 2005). The podiatrist can reduce effectively the number and size of foot calluses and enhance self care (SIGN 2010). Should be encouraged to do path to his foot daily with mild soap to promote blood circulation. Furthermore, patient should dry the feet carefully and use lambs wool between the toes if the skin stays moist or become macerated (Michael et al. 2005). The occurrence of foot wounds is 2-7% per year among diabetes patient (Bloomgarden 2008). Also the patient and caregivers should be educated about sterile dressings technique, the dressing should be covering all wound or ulcers to prevent infection, protect patient foot from any trauma, and promote wound healing (Edmonds 2008). Patient with wound or ulcers should be frequently assessed and inspected specially if the patient has lost protective pain sensation to early detect any development of complications or problems, because of this the dressing should be characterized by: uncomplicated and speed lifting, The ability to walk by without any trouble or suffering disintegration, good ability to monitor and evaluate the secretions and abscess (Edmonds 2008). Action plan: Agreed strategy for foot care such as protocol or guideline driven care of the patient. Involvement of a multidisciplinary foot team to include: diabetic nurse specialist, podiatrist, vascular and orthopaedic surgeon, diabetes physician, orthotist and radiologist. Education for staff and all caregivers looking after the feet of diabetic patients. Establishment and enhancement of good communication between the diabetic patient and multidisciplinary foot team and the primary medical doctor. Reinforcement using appropriate foot wears. Encouragement of diabetic patients to effectively liaising with the podiatrist. Maintain wound care by using appropriate and sterile dressings. Encouragement of community nurses to educate people, especially about diabetes mellitus, diet, insulin, diabetes medication and the risk of complications. Activate discussion groups and workshops for patients with diabetes in primary medical centres. Facilitating the knowledge, skill and human resources for the promotion of diabetes self care. Conclusion and recommendations Diabetes mellitus is defined as a metabolic disorder characterised by chronic hyperglycaemia with metabolism disturbances in carbohydrate, protein and fat because of defects in insulin secretion, insulin action, or both (SIGN 2010). Approximately 39 million person in 2007 diagnosed with diabetes and an expected gradual increase to 439 million in 2030 (IDF 2009). The diabetes Cost in 2007 worldwide was approximately $ 232 billion and expected to increase to over $300 billion in 2025 (Egede and Ellis, 2010). Every 30 seconds, a lower extremity is lost to diabetes due to amputation in the world (IDF 2009). Diabetic foot complications very common worldwide, also leads to big social, political and economic impacts to both society and to the patient and their families. Paul Brand, suggest a real recommendation to reducing amputations and foot complications to the US Department of Health conference that is to encourage multidisciplinary foot team to remove patients shoes, socks and after that examine and assessment patient feet. The diabetic foot is a significant healthcare problem worldwide and inadequate appropriate therapy may lead to the spread of serious complications such as amputation, disability and increase morbidity and mortality rate each year globally. Therefore, careful monitoring, regular assessment, patient education and education for the specialist team caring for diabetic foot ulcers are very important and significant. Furthermore, early detection and specialized treatment of any risk factors plays significant part to prevent foot complications and reducing the amputation rate. Diabetes leads to dramatically increased risk of diabetic foot and amputation, but available evidence based guidelines or protocols that this risk may be significantly reduced by effective screening and intervention. The multidisciplinary foot team should screen all diabetic patients regularly to early detect those at risk for foot ulceration and this screening should include all risk factors and all assessment procedure. Educating patients and caregivers about foot care and risk factors, full examination every 6 month or at least annually, appropriate footwear, daily self foot examination, wound care, smoking cessation, control of blood glucose level, activation of community nurses, enhance communication between diabetic patient and multidisciplinary foot team. All of these measures should be applied and adhered by patient firstly, and by all caregivers secondly to reduce diabetic foot complication and prevent amputation.