Rational and Emotional Approaches to Change Essay

Introduction Leaders appear to make decisions based on what they may gain or lose in their leadership roles. This may mean being viewed as week or strong. Are they risk takers when it comes to their being viewed by their followers which goes against the status quo? Any changes may also be seen as a compromise of their values. Emotional Intelligence In 1985 Reuven Bar-on was reasearching the qualities that lead to success. He showed there was much more than traditional Intelligences or IQ and developed the concept of Emotional Intelligence-Emotinal Quotient or EQ was born.(Roy Childs, Emotional Intelligence and Leaderhsip). 2012 Team Technology. According to the Harvard Business Review, emotional intelligence is one of the defining qualities of agood leader. It can take a person of somewhat â€Å"average intelligence and abilities and transform them into an effective and successful part of any organization. An emotional leader would have emotional intelligence which is defined by the ability understand and manage our emotions and those around us. This quality gives individuals a variety of skills such as the ability to manage relationships, navigate social networks, I influence and inspire others. (Sara Flecther, Lead Change Group. May 30, 2012.) In today’s workplace, it has become highly important why leaders should cultivate their emotional intelligence: self-awareness; emotional management; effective communication; social awareness and conflict resolution.(Sara Fletcher ,Lead Change Group. May 30, 2012.) The idea that success in both life and in work (at least where managing people is concerned is a significant factor) became highly credible and organizations have recognized how their best leaders and managers need to develop their understanding of themselves and other. (Roy Childs, Emotonal Intelliegence and Leaderhsip. 2012 Teamology.) An emotional leader is also characterized as being charmismatic. Charmismatic leadership theory is a popular and much reseached approach to understanding effective leadership. (Hughes, Ginnett, Curphy, 2003). Using this intelligence is based on several models, self –assessment questionaires.This approach has obvious limitations in identifing levels of self- awarenessâ€Å"how can you be aware of what you are  not aware of!â€Å"(Roy Childs Emotional Intelligence and Leadership.2012 Teamology) A better approach is said to be expertimental exercises, feedback response to identify strengths and weaknesses, self-assessments by an independent source which offers a higher level of honesty. This approach challenges many challenges but can cause growth and development.

The Elixir of Love

I watched Leisure damper (also called The Elixir of Love), a comic opera performed in two acts, created by the Italian composer Cottage Downsized in the nineteenth century. It was the most often performed opera in Italy between 1838 and 1848. The play showed the love triangle between the main characters. Merino, a young villager, was in love with the beautiful farm owner Adding. Unfortunately, he never knew how to get her attention; she was very indifferent and, apparently, she did not care about love at all.Hopeless, Merino .NET to see the traveling quack doctor, Dulcimers, to ask him for a love potion that could make Adding fall for him. Things got worse when Sergeant Belcher arrived in town. He felt immediately attracted to Adding as well and asked the lady to marry him. Adding, to get revenge on Merino, accepted the proposal. Thenceforth, Merino had to try his best to clarify the situation and seduce the beautiful lady. To my eyes, the whole play was completely addictive and hear t-wringing. Furthermore, I felt really involved with the characters and the ending was very satisfying.The setting was extraordinary. Although It was always the same background, the light fixture and additional ornamentation made it look flawless all the time. There were also some visual effects that helped a lot to create appropriate situations, for Instance, the different times of the day. The costumes of the cast were totally accurate with the era that the play was trying to represent. They presented beautiful dresses for the ladies and elegant or humble outfits for the men, depending on their characters, of course. As for the music and the acting, I must admit I was massively Impressed.I had never watched an opera before, but I had seen lots of plays. Nevertheless, this has been my favorite so far. The music was outstanding. Every time one of the cast members started to sing, I felt out of this world. They had an Impressive talent and vocal ability, and the orchestra also did an amazing Job. Moreover, the acting was superb. They were all really charming and committed. The cast had the power to bring me from laughter to tears In Just a second. Allele's damper Is definitely an opera that I would go watch again If possible. It was terrific!

Teacher locus of control

Environmental, social, political, and many other learner-external factors Interact in complex ways to determine learning outcomes. Moreover, the way learners observe the world has a great Influence over their educational achievements. Studies have shown that their sense of personal control over the educational process Is one of the most significant factors in arousing and maintaining individuals' interest and involvement in learning activities.This sense of personal control is known as Locus of control (LOC). Anhydrous, 2012, p. 123) LoC indicates how a person believes about control over life events; LoC refers to whether individuals relate their success or failure to their own behavior. Rooter proposed a continuum for LoC with Externalities and internalizes at the two opposing extremes. ‘Internalizes' feel personally responsible for everything that happens to them In their lives whereas ‘Externalities' believe that factors beyond their control determine what would happen In their lives. Anhydrous, 2012, p. 124) Rooter's (1966) social learning theory locus of control construct suggested that enrolling laws of learning as illustrated above Is a problematic procedure because the effect of rewards depends on how the person perceives a causal relationship between his or her behavior and the reward. If the person perceives a reward as contingent upon his or her own effort or ability (biz. , internal locus of control),then the occurrence of a reward will strengthen the likelihood of that behavior recurring.If he or she sees a reward as not contingent upon ability or effort, that is, as a result of luck, chance, fate, or powers beyond personal control (biz. , external locus of control), hen the preceding behavior is less likely to be strengthened by the presence of a reward (Rooter, 1966). In general, Rooter suggested that Individuals with an Internal locus of control would place greater value on contingent achievement-related rewards. Www, 2008,) Trusty a nd McCann (1995) suggested that under contingent reward conditions, subjects with an internal locus of control (I. E. , internals) desired more control over the procedures and types of tasks and performed better than did subjects with an external locus of control (I. E. , externals), whereas subjects with an external locus of intro desired more control over the types of tasks and performed better than did those with internal locus of control under incontinent reward conditions.Teachers have been seen as critical to the reform of the education sector and teacher development has been given high priority in the asses (Miller, 1999). Many teachers, administrators and policy-makers have been guided by the results of research and evaluation studies that suggested, according to Miller (1999, p. 63), that â€Å"teachers' abilities, teachers' knowledge of subject matter and teaching methods and teaching experience, along with small class sizes and the positive Influences of small schools, a re critical elements in successful student learning†. Ferguson, 1991: Ferguson & underway, Jamaica and other Caribbean countries had to deal with the growing problems associated with teachers' career decision-making of which the protracted problem of teacher attrition is an outcome; their teaching plans are of enormous interest in this complex process. Within the context of teaching, for example, an outcome expectation is illustrated by the teacher who believes that skillful instruction can offset the effects of an impoverished home environment.Here, efficacy is expressed not for oneself but, rather, for an abstract collective of teachers–the â€Å"normative teacher,† using the language of Dunham and Michael (1981, p. 41). An efficacy expectation, in contrast, would be reflected by the teacher's confidence that he or she personally is capable of such instruction, that the individual possesses personal agency with respect to the task of pedagogy. Smile (1988), on the basis of a path analysis, reported that the proportion of low-achieving students in a teacher's classroom had a negative direct effect on personal efficacy.Smile also found that interactions with one's colleagues about instructional matters carried a positive indirect effect on personal efficacy through the intervening variable certainty of practice. And in their study of teacher efficacy and school climate, How and Wolff (Bibb) found that school-level measures of academic emphasis, institutional integrity, and principals influence each correlated with either personal or general efficacy. Among special education resource-room teachers, personal efficacy was sass coated with the perceived utility of instructional supervision (Colloidal & Bred ton, 1991).Teachers' locus of control has influenced teachers' plans to teach or leave the profession (Ferrier, 1987; Rose & Midway, 1981). Ferrier (1987) also indicated that â€Å"motivation is as important as professional skills† Te achers' self-efficacy has been defined as the belief of an individual's ability to teach and motivate students (Gaston & Webb, 1986; Bandeau, 1991, 1997). Research studies show a strong a relationship between a teacher's sense of efficacy and student achievement as well as teacher retention (Bray-Clark & Bates, 2003; Hillman, 1986; Floors, Desman-Operetta, & Statement, 2004; Attachments-Moran, How & How, 1998).If teachers feel that students will follow their instructions or if they develop good rapport with their students, they may be encouraged to pursue teaching as a career. However, teachers may not be so enthusiastic about the profession if they feel frustrated in having to monitor pupil behavior, to deal with a great deal of discipline problems in the classroom, or to teach students who are poorly motivated. Research show that internal locus of controlled individuals, compared to external locus of controlled ones, spend rather more time on intellectual and academic activities a nd their success at school is higher.Internal locus of controlled individuals represent individuals that resist negative off sects on a larger scale, that reacts strongly when their personal freedom is limited, that have an independent personality, and that are impulsive and entrepreneurial (Ye$library, 2004; Ye$library, 1990). Statement of the problem This study is designed to check the control of teachers' on students in public and private schools. Objectives of the study The objectives of the study are to: difference between male and female teaching on students' achievements. Check the effect of rural and urban teachers' on students' success and failure.Research questions What is teacher's locus of control? How teaching methodologies effect on students' performance? How teachers' can control their class regarding curricular and co-curricular activities? Significance of the study This study will be helpful to check the teachers' control over their class. Operational definition of the study The operational definition of the study is to check the teacher's external and internal perception about their students' success and failure regarding teaching methodologies, classroom environment and students' achievements inside the class.Delimitation's of the study The study comprised of public and private schools of Punjab. Ethical consideration The researcher takes the permission letter from the institute for data collection and make sure that no respondent has problem with the data or Data collection process. All data in the study will anonymous, participation will voluntary and no separate data will collect on individuals. Participants will informed that confidentiality will assured and that they have the right to withdraw from the study at any point.Chapter # 3 Methodology Nature of the study The study was quantitative in nature. Population of the study The population of the study was the male and female teachers of public and private schools of Punjab. Data collec tion The researcher collected data through questionnaires from teachers of public and private schools of Punjab personally. Participants The researcher used the convenient sampling technique to collect data from the public and private schools of Punjab. The study was conducted through a survey.The private and public in service teachers were selected in this study. Approximately 167 questionnaires were collected from in service teachers. There were total 167 searchers, 67 male and 100 female most of the teachers were from arts group which were 116 and science teachers were 51 in numbers. The majority of the in service teachers were having the age group of 20 to 30 years old, 40 to 50 years of age group were at the second number while the remaining two groups were at the least level.The number of public schools was 95 and private schools were 72. The urban number of teachers 144 and rural 23 teachers. Measures control of teachers' on students in public and private schools. The close e nded questionnaires were used to explore the teachers' control over their class regarding dents' success and failure. Close Ended Questionnaire The close-ended responses were collected on a 5-point Liker scale and converted into a numerical scale (Strongly agree?I , Agree=2, Neutral=3, Disagree=4, strongly disagree=5).

Barbara Ehenreichs The Roots of War Essay Example | Topics and Well Written Essays - 500 words

Barbara Ehenreichs The Roots of War - Essay Example Here, the chain of events elucidated in the writing is closely related to the notion of warfare by human beings. By drawing many cause and effects of warfare, Ehenreich attempts to challenge many of the prevailing understandings of war. In the very introductory paragraph of her paper itself, she negates some of the widespread misunderstandings on war such as the ideas that ‘war is essentially human’, war is essentially modern capitalist’ and war is instinctual’. War is mysterious. It stems from mysteries and it mystifies. There exist hundreds of misconceptions about war. Many people think that war is unique to human species. The proverbial saying goes that even animals do not kill except for food. According to Barbara Ehenreich, â€Å"there are [o]nly three types of creatures engage in warfare- humans, chimpanzees and ants†(598). Is tendency to go for war part of our genome make up? Feminists for long thought that it is testosterone that makes men wa r prone. War is not new to the human society. War prevails in all kinds of societies from primitive hunter-gatherers to modern capitalist ones. The first cause/effect assertion by the writer is that war is not equal to violence because violence is just part of it. It is a reductionism to say that war is equal to violence. No, war is greater than violence.

A study of the elderly victim of sexual abuse Essay

A study of the elderly victim of sexual abuse - Essay Example , it is evident that elderly sexual abuse and mistreatment cases are of paramount importance for the society and research from a number of large and small organizations must be incorporated in one research paper to properly analyze the situation. The purpose of this paper is to analyze and evaluate the current trends of elderly sexual abuse and its effects on the US population. The study of elderly sexual abuse and its effects produced an urge to conduct a research on the causes, effects and situational analysis of such incidences. The aims of this paper are hence to cover a number of topics related to it. The research questions that are answered in this paper are as follows: Are the current trends of elderly sexual abuse in the US getting better? What are the effects of such cases on physical, psychological and social wellbeing of the US population? What is the Government doing to reduce such cases and for the welfare of victimized elderly population? The goal of this paper is to incorporate as many researches as possible to support the claim that elderly sexual abuse is harming the society terribly. This paper has an objective to expose the statistics related to elderly sexual abuse cases and the effects of it on people. The harms of such incidences remain for longer periods and damage the social, psychological and physical health of victims. The study is basically prepared to analyze the situation from the victims’ perspective. The research area in question covers a wide range of topics that may be looked into. Hence it was difficult to carefully select from that list of topics. Once selected, in order to answer the research questions, it was difficult to find ample statistics. Most of the sexual assault cases are not reported by the elderly victims due to fear, harassment, hesitation and humiliation. It was not possible to conduct a survey for individual study on the victims. The victims are not usually responsive and open to the questions that are being

The comparison of Kindred by Butler and Beloved by Toni Morrison Essay

The comparison of Kindred by Butler and Beloved by Toni Morrison - Essay Example Beloved is the story of former slave, Sethe, who lives with her daughter, Denever and mother in law. She has been excommunicated by her community as she killed her child named Beloved 15 years ago in order to save her from being a slave. Here slavery is so cruel that death has been preferred over it. Parents of would be slaves kill their own offspring instead of giving them to slave-catchers. But the choice made by Sethe is criticized and rejected by her own community. To them Sethe’s choice of freedom for her child is unacceptable. They think that a slave should submit to his fate. In Toni Morrison’s Beloved â€Å" the ghost is the reminder of how the phallus of slavery disrupted all bonds when it came down to the black family† ( Bloom 100) Butler’s Kindered also portrays a world where slavery and violence are the common practices. The racial divide has already determined the roles where white are slave-owners and blacks are the slaves. The White have power over the existence of their slaves and they use violence as their instrument. The slavery seems to be an inevitable institution in this society and violence of masters is a common happening. Commenting on this acceptance of reality by the salves Dana says, â€Å"â€Å"The ease. Us, the children . . . I never realized how easily people could be trained to accept slavery† (101). The world seems to deterministic where slavery is accepted as fate. Rufus is a ruthless master who has learned to use his authority since his childhood and treats his slaves cruelly. Sam and Nigel are mistreated. The slaves are victim of all forms of violence: lashing, rapes and other physical and mental brutalities. Slaves’ only refuge and solace against these brutalities is their family and home. Home is the binding force which is a symbol of safety and freedom for the slaves and their family is a binding

Personal and Professional Development Assignment - 2

Personal and Professional Development - Assignment Example Individuals who are persuading their studies, still in colleges and yet to join organization can learn from friends, newspapers and internet. Self-managed learning provides the people with chances of innovation with their own learning strategies. In some cases, many of the learners are seen to adopt short term learning strategies but the changing environment has made it inevitable that the learners should take up long term learning (Garrow, 1998). Approaches of Self-Managed Learning In colleges, students can learn through research, this is even possible when the individual is in his workplace. There are several learning approaches that the individual can follow for learning. However, the most common approaches are discussed below: Informal or experimental learning Most of the people are seen to learn through informal or experimental means. ... Through social networking sites, individuals can chat with their friends and colleagues and can learn from them. There are various written materials along with articles that enhance the knowledge base of the individuals. Coaching Coaching is the art of facilitating the enhancement of the development, learning and performance of the others. It has a personal form that is one to one on the job approach. This approach of helping people assists in developing the levels of competence and skills. Mentoring Mentoring is the process through which some trained individuals are specially selected to provide support, guidance and pragmatic advice in order to help the individual or a group of persons, under the responsibility of the trained individual, to develop and learn. Mentors help the individuals in performing better in the future and grooming them to attain greater heights in their career, which is commonly referred as career advancement. Mentors provide suggestions to the people for learn ing contracts and drawing self-development programs. They also provide help with learning programs and guidance regarding the necessary skills and knowledge that can be acquired to perform the new job roles. Life Long Learning Lifelong learning can be defined as a learning activity that can be conducted throughout one’s life, with an aim of enhancing competencies and knowledge skills within a social, civic, personal and employment-related perspective (O'Grady, 2013). The two different ways in which lifelong learning, in a personal and professional context, could be encouraged are Continuing Professional Development (CPD) and Personal Development Planning (PDP). Continuing Professional Development CPD is the enhancement and

Why Offenders Abuse Children Assignment Example | Topics and Well Written Essays - 250 words

Why Offenders Abuse Children - Assignment Example Incest abuse should be punished more severely than stranger abuse. This is in part because of the effects of incest on the victim and the biological facts behind incest. Since the offender is usually close to the victim, the victim might experience frequent and greater trauma since the reminder is always close. Incest also leads to lack of trust on family members causing a rift in the family. Incestuous abuse usually last for a long period causing more stress and damage than a stranger case would have done. In most cases, the perpetrators use threats to prevent the victims from disclosing the abuse. This usually adds to the trauma since the victim keeps the traumatic experiences to themselves, which according to therapists does not help a traumatic situation but makes it worse.  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Child sexual abuse is a complex issue especially when attempting to determine why adults engage in sexual activities with young children. Although there does not exist a clear or a distinct answer to this question, such acts may be committed under two major grounds that include psychological forces and social structure. With regard to psychological forces, the attacker may be motivated by emotional congruence, blockage or sexual arousal. Emotional congruence incorporates satisfying an emotional need by relating sexually to the child. Sexual arousal takes place when the subject child becomes the source of sexual satisfaction. Additionally, blockage may take place when other alternative sources of sexual gratification are unavailable.

Zara Case Study Coursework Example | Topics and Well Written Essays - 1000 words

Zara Case Study - Coursework Example However, each chain operates independently and is responsible for its own strategy, product design, sourcing and manufacturing, distribution, image, personnel, and financial results. Zara, which contributes around 80 per cent of group sales (Grant 2005, p.398), is by far the largest, most profitable, and most internationalized of the chains. Its stores can now be found in the most important shopping districts of more than 400 cities in Europe,  the Americas, Asia and Africa. With year-on-year sales increasing at around 25% over the last 5 years, it has become one of the world’s fastest growing retailers (University of Cambridge Institute for Manufacturing). The global apparel market is a consumer-driven industry (Criag, Jones & Nieto, 2004) in which profits derived from "unique combinations of high-value research, design, sales, marketing, and financial services that allow retailers, branded marketers, and branded manufacturers to act as strategic brokers in linking overseas factories" with markets (Collins 2003, p.44). Zaras business model can be broken down into three basic components: concept, capabilities, and value drivers. Zaras fundamental concept is to maintain design, production, and distribution processes that will enable Zara to respond quickly to shifts in consumer demands and tastes. The main business tactics of the company in context of its business model is:- At the heart of Zaras success is a vertically integrated business model spanning design, just-in-time production, marketing and sales.

Marketing Requisites Case Study Example | Topics and Well Written Essays - 2500 words

Marketing Requisites - Case Study Example For the same reason, the market, unable yet to recognize the trend, is falling short when it comes to the products aiming at the grey population. We have taken an example of a company, Saga, which specializes in the grey market related products specifically. This company too was running in the same old pattern, taking its clientele to be the conventional waving walking sticks kind. However, with its clientele fast adapting to the new times, the company fell short in appeasing the new generation of "silver surfers" with the kind of products they wanted. To keep up with the times, the company changed its strategy and tried to conform to the latest trends amongst the silver surfers. This was just one company. However, many companies are now waking up to this fact and are trying to turn their attention to the grey market around the world. In this case study, we are to prove how correctly targeting the grey market will help in increasing your clientele, as will your profits be affected. Kindly advance to the next segment of this case study; which we have divided in the form of headers and sub - headers, in order to segment the whole study to increase the understanding of the reader. Some people might argue that the grey market does not actually form a substantial part of consumer exploration, however, the argument seems to be getting stale as each day passes by. The truth is, the grey market today consists of many baby-boomers. This has led to a prominent change in the way these elderly think and plan their future. By grey market, we are considering people over fifty. These days, many studies have started referring the oldies as 'Gotys', meaning 'Getting Older, thinking Younger' and nothing was more closer to truth that this euphuism (Gabriel, 2008). The reason for this is that most people, who are in the 'grey' age group, have suddenly started showing more tilt towards the fun element in their lives. Many years of research have conformed the fact that the grey segment happens to be the wealthiest of the lot, holding 80% of the total wealth in UK alone. For the same reason, while most of the financial power is being controlled by the grey segment, aiming for th em could not have reaped better results at any other time. Some other statistics might come as shocking too - it is estimated that 49% of the grey population enjoys an active sex life (while more than half amongst those enjoy the marital bed), over 19% might try for online dating, 10% would also consider getting a plastic surgery done and 75% amongst them all have an extremely bright outlook towards life (OMD UK, 2006). While the grey population is estimated to reach 50% by the end of year 2048, most of these people are opting for unconventional lives. Unlike the older times, these silver surfers are more gung ho about adventure trips or the likes of gap years working abroad - hence being termed as the grown-up grappers. More than seventy percent of these people are free of all mortgages, while nine out of ten are in charge of their own home. As shocking as it may sound, these pensioners, silver surfers, elders etc alone make for an accumulative figure of pounds 500 billion. Apart from

A Picture in the 1800s Essay Example | Topics and Well Written Essays - 500 words

A Picture in the 1800s - Essay Example The image of the photo is taken with the medium of daguerreotype, which presented photos that are clear in the eyes of the viewers. The factors of the use of daguerreotype medium of presentation of the photo made it to have well balanced lighting so that it is not exaggerated with a lot of silver halides as seen in the calotype photos. This has made the image to look very unique and admirable when a person views it. Due to the daguerreotype medium of presentation, the photographer has been able to balance the coloration so that he can imply the difference in color of the clothes of the man in the photo and represent the direction of the source of light. The photo represent the time in which it was created because of the fact that it has many characteristics of the pictures of the time. These characteristic are the color, the environment and its decoration as well as the shape of the photo which are unique for it. These aspects of the photo make it to identify with the kind of photos that were represented in the times of its making because it was a conforming to almost all of them.

Critical Response to Martin and Milway’s Editorial Essay Example for Free

Critical Response to Martin and Milway’s Editorial Essay In â€Å"A Productive Labour: The Only Limit to Productivity Growth is Human Ingenuity,† authors Martin and Milway present an argument for increasing productivity as a means of raising Canada’s economic health and living standards. Although Martin and Milway’s editorial on productivity present a piece that is rational and easily understood, its effort to convince that readers of its main argument is encumbered by weaknesses in the authors’ approach and reasoning that lead to more questions being raised than answered in the course of one’s reading. The editorial underlines the importance of improving Canada’s productivity in light of rising prices of manufactured goods and services that accompanied the strengthening of the Canadian dollar in 2001. The main argument put forth is that enhancing productivity is critical in ensuring improvements on the country’s living standards. The authors proceed to support their arguments by presenting two ways by which living standards can be raised, the first by increasing the number of working hours or using up more natural and physical resources for sustained wealth creation, and the second by improving productivity or raising the value created per working hour. After illustrating that the first way is not a viable alternative, the authors then concentrate on convincing the reader why the second way is better by defining the concept of productivity based on efficiency and innovation. The strength of Martin and Milway’s editorial lies in its ability to appeal to the rational side of its readers and their ability to tackle an otherwise complicated subject in simple terms. The authors attempt to defend their arguments by stating facts and carefully defining their subject, that is, productivity. As a result, the readers are compelled to view their argument in consideration of the definition that they present. Unfortunately, several weaknesses in Martin and Milway’s editorial in terms of their approach and in their reasoning reduce the effectivity of their argument. The biggest errors that exist in the editorial are faulty reasoning and the inability of the authors to substantiate their claim. As a consequence, the authors fail to persuade readers that â€Å"productivity is the surest way to raise our living standards. † (par. 4) The editorial was clearly written to convince readers that Canada needs to raise its productivity if it is to continue its economic growth and if it is to raise living standards. On the other hand, the authors fail to present evidence to substantiate this claim aside from the argument that it is the most cost-effective alternative in terms of labour, time, and natural resources. The authors automatically assumed that the readers of the editorial would readily accept that an increase in economic growth follows from an increase in productivity. Likewise, this argument raises several implications: first, that economic growth is not possible without an increased productivity; second, that productivity growth always leads to a raise in the living standards. It is here that the informed audience becomes wary as the authors’ bias shows through in their failure to consider countries with high productivity growth but low living standards. This shows a lack of forethought of the authors in answering the questions that would be inevitably raised by their argument. The main weakness of the editorial is that the authors commit fallacies in reasoning. For one, they are â€Å"begging the question† wherein the reader must already accept the conclusion in order to accept the evidence forwarded (Boyne, et. al. , 69). For instance, the authors enumerate the ways by which productivity can be improved to support their main contention. They state that â€Å"productivity increases in one of two ways: greater efficiency in how we employ labour and capital, or greater value creation per unit of these inputs. †(par. 8) This flow of the discussion reflects an assumption on the part of the authors that their main argument has already been accepted by the readers since discussing the ways by which productivity can be improved does not necessarily support the argument that productivity will improve the country’s economy. This circular reasoning makes the reader feel like the authors are trying to sound logical but cannot support their argument beyond the definition of the subject. Another obvious error in reasoning in the Martin and Milway’s editorial is superstition (Boyne, et. al. , 70) or hasty generalization. The authors attempt to prove the argument that â€Å"Productivity growth also benefits workers and consumers† (par. 14) by stating that â€Å"countries and regions with higher productivity pay higher wages† (par. 14) which assumes that higher wages automatically result from higher productivity. If one is to follow this argument, then it would imply that countries and regions that pay lower wages are not productive or low in productivity. In sum, a critical analysis of the piece reveals that the weaknesses outweigh the positive aspects in Martin and Milway’s editorial. Shortcomings in substantiating the editorial’s central argument with credible evidence as well as the inability to defend their argument in a logical manner renders the entire editorial ineffective in convincing the reader of the importance of improving productivity to improve their lives.

Research Project: Impact and Causes of Air Pollution

Research Project: Impact and Causes of Air Pollution NATIONAL DEVELOPMENT AND GLOBAL EMPOWERMENT, THE CASE OF INDUSTRIAL AIR POLLUTION IN ILUPEJU INDUSTRIAL ESTATE, LAGOS STATE. BY ATUBI AUGUSTUS O. (Ph.D) ABSTRACT The research work is primarily on industrial pollution; focusing on air pollution in the Ilupeju industrial estate of Lagos State, in Mushin Local Government Area. Air pollution has been a serious problem to the people who reside closely to Ilupeju industrial zone since inception of the area. It has been responsible for various ailments among the people and those who work in the industries that pollute the air through the use of some dangerous chemicals. The research work looked at the various ways by which air pollution is being generated in the area, the effects on the people and the possible control measures to minimize its further damage on the health of the people and the place for national development and global empowerment. INTRODUCTION The environment is the setting of man’s various productive activities. The impact of man on the landscape through these activities and the extent of environmental pollution arising there from have been well documented (Atubi and Onokala, 2006a, Atubi, 2007b). In Nigeria today, most of the industrial estates are not meant for industries alone; residential homes can be found in the so-called industrial estates also. And with this development, the problem of industrial pollution has effects on man, plants and materials. The areas which contain industries manufacturing different products such as petrochemicals, detergents, injects harmful wastes into the air such as carbon monoxide, sulphur oxide, nitrogen oxide and hydrocarbons which are the major sources of air pollution. Generally, the release of industrial waste into the air has been responsible for many health problems such as chronic bronchitis, malaria, asthma and also the damaging of roofing sheets and buildings. The resident are not fully aware of the damages being done to their lives and properties by those harmful wastes. Most of the past researches in Nigeria and the world in general on industrial pollution such as Hodges (1977); Mcgraw-Hill (1977); Okoro (1979); Nwafor (1981); Simmon (1982); Kormondy (1984); Segynola (1988); Ohagi (1988); Ademorati (1988); Miller (1994); Hill (1999) to mention a few, have their focus on effects and causes of industrial pollution in general and not on industrial estate. Available evidence (Census, 1991) shows that about sixty thousand people reside in the Ilupeju industrial area, yet very low priority is accorded to the problems of industrial pollution and environmental quality in the area. The problem of air pollution is worse in Lagos than in any other Nigerian city. It is also more complex in Lagos. The study is aimed at analyzing the effects of industrial air pollution on the residents and environments of Ilupeju industrial estate as a way for national development and global empowerment. STUDY AREA/DATA COLLECTION This study is focused on Ilupeju industrial estate, which in the context of this paper comprises of over 20 streets and for proper administration it was further divided into three zones. The zones are Ilupeju bye-pass as zone A, Coker area as zone B, Town Planning area as zone C. Ilupeju industrial estate is located within the Mushin Local Government Area of Lagos State. It covers an area of about 110 hectares of land. It is transversed by longitude 30 and 3060I east and latitude 3030I north. It is bounded in the North by Ikeja Local Government Area, in the east by Somolu Local Government Area, in the West by Oshodi/Isolo Local Government Area, and in the South by Surulere Local Government Area in Lagos State in 1962 (fig. 1). It occupies a unique position in Lagos State, firstly as an industrial zone, secondly as a commercial centre, thirdly as a residential area and lastly as a major route. The concentration of industries can be found in Ilupeju industrial estate. And the area is well established because of the rapid growth of new and large industrial establishments, which include good transportation, and relatively high standard of available public utilities. The industries on this estate include paints, plastic, textiles, printing services and the manufacturers of soap and detergents etc. The banking sector is another sector found amongst the economic activities that takes place in Ilupeju. The data on which the study is based were collected through questionnaire survey in the year 2005 from three zones to which Ilupeju industrial estate was divided. The random/systematic sampling techniques was used to select a number of streets. Out of the 20 streets in the area 10 were randomly selected for the study in which three houses were again selected randomly with two persons selected for interview. Responses from the questionnaires were mainly used for data analysis. The computation elied on averaging model, percentages and Analysis of variance (ANOVA). CAUSES OF INDUSTRIAL POLLUTION Mcgraw-Hill (1977) stated that other sources such as pesticides and man’s earth-moving and agricultural practices lead to vastly increased atmospheric burden of the soil particles and of pollens, spots, rust and smuts. Okoro (1979) further stated that industrialization is as a result of man’s attempt to provide himself with facilities for optimum employment. Industries leave behind peculiar wastes. They also pollute our environment, think of the cloud of smoke that emerges from the industrial house and apparently disappears into the air, think of various colour liquid some of them have foul smells that are emptied into the rivers, lagoons and oceans. They change environment’s composition and destroy its purity. To assess this, respondents were asked to mention the causes of industrial pollution in the estate. The response made showed that the use of chemicals in Zone A is one of the major causes of pollution in the area followed by the release of smoke from the industries which 24 people responded to it, while the poor disposal of waste and noise from machineries have responses of 23 and 20 respectively. In zone B, 19 people responded to the use of chemicals, 10 to the poor disposal of waste, 9 people indicated to the noise from machineries and 15 responded to the release of smokes from industries. Finally, in zone C, 20 people indicated that the use of chemicals is the major cause of industrial pollution. 18 responded to the poor disposal of waste, 17 to noise from the machineries, and 18 to the release of smokes. Table 1 shows the details. From the table it could seen that zone A and C had high indications than B, this is because Zone A and C are the nearest neighbours to different industries while zone B are area away from the industries. TABLE 1:THE CAUSES OF INDUSTRIAL AIR POLLUTION IN ILUPEJU INDUSTRIAL ESTATE. Source: Field Survey, 2005 Therefore, the major causes of industrial air pollution as seen from the table is because of the use of chemicals which in turn pollute the area through the release of smoke. TABLE 2:THE EFFECTS OF INDUSTRIAL AIR POLLUTION IN ILUPEJU INDUSTRIAL ESTATE Source: Field Survey, 2005 Table 2 shows that in zone A 20 indicated that restlessness has been one of the effects of industrial air pollution followed by persistent cough and chest pain, eye irritation which is the highest with 21 responses and 20 for asthmatic patients. Zone B, as could be seen from the table 2 had eye patient with 20 respondents and 10 respondents respectively for restlessness and persistent cough and chest pain. Zone C showed that the effect of industrial air pollution is more on eye irritation and persistent cough and chest pain with 20 respondents respectively while restlessness had the highest respondents and asthmatic patient has 19 respondents. From the above table 2, the effects of industrial air pollution is felt more in Zone A followed by Zone B and this is because the residential areas are nearest to the industrial area. Zone B has a total of 59 compared to Zone A (81) and Zone C (80). From the table it indicated that zones A and B have the highest effects of industrial pollution than zone C. Hypotheses were formulated and tested using analysis of variance statistic. The calculated values are 10.27 and 3.72 and the critical table value are 4.26 and 4.26. Therefore, there is variation of industrial air pollution in Ilupeju industrial estate. (See Appendix 1 and 2 for necessary computations). POLICY IMPLEMENTATION In order to prevent severe health hazards arising from increased industrial activities which pollutes the environment, government’s silence on environmental protection over the years should be broken and public interest must be sufficiently aroused through documentaries and corrective measures of pollution. We should therefore, plan ahead, and learn from the mistakes of the industrialized nations and their current efforts to correct those mistakes. We should not allow pollution to be the price of the state’s progress. The establishment of some parastatals concerned with the maintenance of sanity in environment is the next step in the right direction. The Lagos State Ministry of Environment, Lagos State Environmental Protection Agency, Federal Environmental Protection Agency and the Ministry of Health, etc. amongst others are charged with the responsibility of protecting the environment and maintaining a healthy environments as a way for national development and global employment. However, to grapple effectively with our environmental problems and enhance the quality of life in our settlements, we require information in the nature and dimension of these problems. The State Government should make funds available for relevant research to increase our understanding of the source and effect of gaseous pollutant and all disciplines have a role to play in this regard. There is need to design relatively, cheap yet efficient methods of waste disposal for our towns and cities (Atubi and Oriero, 2006b). Finally, it may be observed that in the area of pollution control, there must be a good deal of cooperation between professionals. The engineers should explore different alternatives of controls; the economists must determine which combination of measures is least costly for a given degree or control. The social scientists explore the intangible benefits associated with different level of control, the surveyors to determine how best each level of control could be developed and the jurist establish how different control measures can be enforced. The decision regarding the control measures can be adopted and enforced. However, the adoptions rest with the people and the government. They will have to pay for it and will have to live with it. CONCLUSION The result of the study has shown that all environmental pollution in Ilupeju industrial estate is created by man’s activities in living, producing and consuming goods and services. These activities generate net benefits to the people undertaking them even though they may impose unwanted cost. An important objective of environmental resources management in Lagos State is to plan towards an improvement of overall quality of the state’s human environment and this plan should be undertaken from the local level upwards. To achieve this objective, a strategy should be worked out to ensure that the use of resources for the welfare of man does not result in a conflict between the environment and development or between resource utilization and man. REFERENCES Ademoroti C. M. A. (1988), â€Å"Environmental Management: Case Studies on Industrial Waste water treatment†, Environmental issues and management in Nigeria Development. Pp. 200 – 206 Atubi, A. O. and Onokala, P. C. (2006a) â€Å"The Socio-Economic Effects of Oil Spillage on Agriculture in the Niger-Delta: A case study of Olomoro, Delta State, Nigeria. Journal of Environmental Studies vol. 2 No.4. Pp. 46 – 52. Atubi, A. O. and Oriero, S. B. (2006b) Environmental Sanitation in Abraka Metropolis; Towards A public policy in Akinbode, A and Ugbomeh B (eds) Abraka Region pp. 118 – 128. Atubi, A. O. (2007b) The Perception of Industrial Disturbances in Nigeria Cities: A Geographical Appraisal of Benin-City. Journal of Environmental Analar (forthcoming). Hill J. (1999), General Chemistry: An Integrated approach 2nd edition, Englewood Cliffs, N. J. Prenctice Hall. Hodges L. (1977), Environmental Pollution: 2nd Edition U.S.A., Library of Congress cataloging in publication Data. Pp. 6 – 8. Kormondy, E. J. (1984), Concept of Ecology, Englewood Cliffs, N. J. Prentice – Hall P. 35. Mcgraw-Hill (1977) Encyclopaedia of Environmental Science, New York: Mcgraw-hill p. 35. Miller, G. T. (1994) Living in the environment: Principles, Connection and Solution 8th edition Belmont California, Wadsworth. Pp. 569 – 583, 645 – 647. Nwafor, J. C. (1981) â€Å"An Evaluation of Land Conservation Problems of Extractive and Manufacturing Industries in Nigeria: A case study of Nkalagu Cement Industry† In U. M. Gbozurike (ed.) Land Use and Conservation in Nigeria. Nsukka; University of Nigeria Press, Pp. 128 – 36. Ohaji, S.M.O. (1988), â€Å"The Effects of Brewery Effluent Discharge on Ikpoba River Water Quality, Benin City† Environmental issues and management in Nigeria Development, Pp. 196 – 197. Okoro, P. T. (1979) Environmental Problems and Your Health: A paper presented to the Ministry of Health. Segynola, A. A. (1988) â€Å"The Nigerian Industrial Landscape and Environmental Degradation†. Environmental issues and Management in Nigeria Development, Pp. 174 – 179. Simon, I. G. (1982) The Ecology of Natural Resources, 2nd edition. Edward Arnold Limited, Pp. 277 – 279. APPENDIX I CAUSES OF INDUSTRIAL POLLUTION IN THE STUDY AREA TO USE ANOVA, APPLY SSt=Sum of Square total Ssw=Sum of square within SSb=Sum of Square between Assign X1, X2 and X3 to the various zones Ho: There is no variation of industrial Air Pollution in the study Area. Calculate the F – ratio and use it to test for the significant difference SSt – ÃŽ £X2 = (ÃŽ £X)2 N ÃŽ £X2 = ÃŽ £X12 + ÃŽ £X22 + ÃŽ £32 = 2130 + 767 + 1337 = 4234 N = n1 + n2 + n3 = 4 + 4 + 4 = 12 ÃŽ £X = ÃŽ £X1 + ÃŽ £X2 + ÃŽ £X3 = 92 + 53 + 73 = 218 SSt=4234 – (218)2 12 SSt = 4234 – 3960 = 273.7 To get SSb SSb = ( X1)2 + ( ÃŽ £X2)2 + (ÃŽ £X3)2 – ( ÃŽ £X)2 n1 n2 n3 N (92)2 + (53)2 + (73)2 – (218)2 4 4 4 12 (2116 + 702.3 + 1332.3) – 3960.3 4150.6 – 3960.3 SSb = 190.3 To get SSw SSw = SSt – SSb 273.7 – 190.3 SSw = 83.4 Determine the F – ratio F = MSb MSw Where MSb = Mean Square between MSw = Mean Square Within Firstly, dfb (df between) = K – 1 Where K = number of groups dfb = 3 – 1 = 2 Secondly, dfw (df within) = N – K Where N = Number of subjects dfw = 12 – 3 = 9 df total = N – 1 12 – 1 = 11 MSb = SSb = 190.3 dfb 2=95.2 Then MSw = SSw= 83.4 dfw 9=9.27 F = MSb = 95,2 MSw 9.27=10.27 The calculated F-ratio must be larger than the theoretical F-ratio to reject the hypothesis. At 0.05 level of confidence, Theoretical F = 4.26 Calculated F = 10.27 Therefore, there is variation of industrial Air Pollution in the study area. APPENDIX 2 THE EFFECTS OF INDUSTRIAL AIR POLLUTION IN THE STUDY AREA n1 = 4n2 = 4n3 = 4 ÃŽ £X1 = 81ÃŽ £X2 = 59ÃŽ £X3 = 80 ÃŽ £X12 – 1641 ÃŽ £X22 = 961ÃŽ £X32 = 1602 X1 = 20.3X2 = 14.8X3 = 20 SSt = ÃŽ £X2 = ( ÃŽ £X)2 N ÃŽ £X2 = ÃŽ £X12 + ÃŽ £X22 + ÃŽ £X32 1641 + 961 + 1602 = 4204 N = n1 + n2 + n3 = 4 + 4 + 4 =12 ÃŽ £X = ÃŽ £X1 + ÃŽ £X2 + ÃŽ £X3 = 81 + 59 + 80 = 220 SSt = 4204 – (220)2 12 SSt = 4204 – 4033.3 = 170.7 To get SSb SSb = ( ÃŽ £X1)2 + ( ÃŽ £X2)2 + ( ÃŽ £X3)2 – ( ÃŽ £X)2 n1 n2 n3 N (18)2 + (59)2 + (80)2 – (220)2 4 4 4 12 1640.3 + 870.3 + 1600 – 4033.3 4110.6 – 4033.3 SSb = 77.3 To get SSw SSw = SSt – SSb 170.7 – 77.3 = 93.4 F = MSb MSw dfb = 3 – 1 = 2 dfw = 12 – 3 = 9 MSb = SSb – 77.3 dfb 2 =38.7 MSw = SSw = 93.4 dfw 9=10.4 F = MSb=38.7 MSw10.4 Theoretical F = 4.26 Calculated F = 3.72 1

The Impact Of ECommerce On Tesco Plc Information Technology Essay

The Impact Of ECommerce On Tesco Plc Information Technology Essay In 1919, Jack Cohen founded Tesco as he began to sell surplus groceries from a stall in the East End of London. On his first day, his profit was  £1 with total sales of  £4. In 1924, Jack sold his first own-brand product which was Tesco Tea and this was before the company was called Tesco. The name comes from the initials of TE Stockwell, who was a partner in the firm of tea suppliers, and CO from Jacks surname. In 1929 Jack Cohen opens his first Tesco store in Burnt Oak, Edgware, North London. 1932 and Tesco Stores Limited became a private limited company. Two years later in 1934, Jack Cohen bought a plot of land at Angel Road, Edmonton, North London to build a new headquarters and warehouse. It was the first modern food warehouse in the country and introduced new ideas for central stock control. Furthermore, in 1947, Tesco Stores (Holdings) Ltd floats on the Stock Exchange with a share price of 25p, and in 1956, the first Tesco self-service supermarket opens in a converted cine ma in Maldon. The list below shows further expansion by Tesco PLC within the subsequent years; Annual sales exceed  £2 billion Computerised checkouts introduced into the first Tesco stores 1983 Tesco Stores (Holdings) Ltd becomes Tesco PLC 1995 Would I Buy It initiative is launched to ensure that products are always of the highest quality for customers Tesco becomes the market-leading food retailer Tesco Clubcard is launched 1996 Tesco launches 24 hour trading 1999 Tesco enters South Korea Tesco launches a new on-line bookstore and on-line banking Tesco publishes supermarket price comparisons on the internet 2000 Tesco.com is launched 2004 Tesco enters China Tesco launches own-brand Fair-trade range Tesco Broadband is launched Tesco.com becomes first major British supermarket to enter music download market 2005 Tesco exits the Taiwanese market in an asset swap deal with Carrefour involving stores and operations in the Czech Republic Tesco Homeplus launches Tesco announces annual profits of  £2 billion 2006 Tesco Direct launches 2009 Tesco launches  www.tesco.com/clothing Clubcard re-launched in the UK with  £150 million investment offering customers the opportunity to double up their vouchers 2010 Tesco opens the worlds first zero-carbon supermarket in Ramsey, Cambridgeshire Tesco opens its first Lifespace mall in Qingdao, China. More information on the history and progress of the company throughout the years can be seen on the companys corporate website. Here are some common Tesco logos that can be seen around; http://t3.gstatic.com/images?q=tbn:ANd9GcQaFF1G-B2Pd3iXLWuhEoxiXI2BfXEPatERE12y9CX7VSkScZ http://t1.gstatic.com/images?q=tbn:ANd9GcS9vEIPDWGJMiMAThPnTWaTjp_LHes8YvMuQ5z_T6EhEzgSlyix http://t0.gstatic.com/images?q=tbn:ANd9GcQqpNKamt2FQnmOZthlHgFaRLyzlO_oRZDKWZ72QS6agwBy811Jhttp://t0.gstatic.com/images?q=tbn:ANd9GcTGdVEEIbImv3nFiGQSkonLltz7w77rmlXaaTEEPeMovbxd5iBM http://t3.gstatic.com/images?q=tbn:ANd9GcTMe4aTQ6V4FOR4f6ULiORWC8nlEBcjLYJ-wu4ATwiFA8VpNt61 HOW TESCO USED TO DO BUSINESS. In Tescos early days, as seen from the original operations, grocery products were sold from market stalls until the first Tesco store was opened in North London in 1929. Then in 1934, the owner bought a plot of land to build a new headquarters and a warehouse and introduced new ideas for central stock control. In 1956 Tesco opened a self service supermarket in a converted cinema in Maldon which meant that people could go in and pick their own items of interest from the shelves and make their way to checkout points or tills for payment. Initially, Tescos marketing operations would have involved the use of TVs, Radio, newspapers, mail shots and billboards. Then in 1982, computerised checkouts were introduced into the first Tesco stores and the companys annual sales exceeded  £2 billion. Here we can see the integration of computerised operations including the centralised stock control to get a picture of the early stages of e-commerce making its way into the business operations. HOW E-COMMERCE HAS TRANSFORMED TESCOS METHOD OF WORKING. With the integration of computerised systems in operations both at stock control levels, database and checkout levels, Tesco launched the Tesco clubcard which allowed customers to earn points from every purchase they made. This involved a brief registration of the customers name, phone number and address details and the issuance of a personal card but this also meant that the company now had a database of loyal customers and every time these cards were used by a customer, Tesco could tell what had been purchased in order to calculate the points but in the process, the company could make predictions about certain goods and items and they could also send in offers and coupons to customers based on what they thought each individual customer would be interested in, either based on a previous purchase or based on a new product. This greatly allowed customers who had the clubcard to relate to Tesco on an almost personal shopping experience, but the underlying factor here was in the use of this particular e-commerce application amongst others. Then the company launched of the 24 hour trading in 1996, which at that stage had a lot to do with the application of computerised and electronic methods of operation, in ways that could maximise the efficiency of the companys operations from the warehouses to the tills. This involved electronic methods of stock control to assist with constant replenishment when necessary, time management, use of barcodes, Television and radio commercials, coupons and printed flyers promoting the organic range, etc. All this time, Tesco was also busy expanding their International branches to as far as Asia and in 1999, the company launched a new on-line bookstore and on-line banking and also published supermarket price comparisons on the internet. Here again we can see that the companys use of e-commerce is expanding at such a rate that competitors would have had to have their seatbelts well tight in order to catch up with this giant retailer. In the year 2000, Tesco launched Tesco.com which basically began the whole Tesco/internet revolution of shopping online with Tesco for almost every household product that the customers needed. With an online platform to advertise and sell products, Tesco.com had made a way for the company to deliver its grocery goods and some other services to customers in the comfort of their own homes and without the need to go to the stores. This was the closest to maximum convenience both for the customers who could now shop anytime and have their goods delivered at conveniently agreed times, and also for the company who could now reach a wider range of people both socially and geographically while at the same time reducing traffic in the stores. Customers could pick from all sorts of products including the free from products designed for customers with special dietary needs and there was just a wide range of flexibility for the customer regarding the whole shopping experience. Nowadays, the comp any can be accessed instantaneously via the World Wide Web on computers, laptops and even the mobile phone. Internally, the use of email, fax, databases, computer programmes, intranet and internet has enabled Tesco to maximise its operational capabilities as information can be accessed, processed and sent around important divisions within a short period of time. I.e. functions of purchasing, supply, accounts, management, marketing, sales, etc. Below are some Advantages and disadvantages of E-commerce to TESCO. THE ADVANTAGES OF E-COMMERCE. Elderly and disabled customers can shop within the comfort of their homes and all customers have access to a wider range of providers to choose from thereby enabling customer empowerment. Heightened customer service as customers are enabled to find detailed information online, and intelligent agents can also answer standard e-mail questions in seconds. Also, reviews posted by other customers about the products purchased on a website can help with decision making for the customer. The use of phone and e-mail has also improved communications between the company and the customer as queries and enquiries are usually made directly via these mediums. Customers also have a wider product range to choose from as they can view the contents of an entire store without physically walking around it, plus round the clock operations online which makes shopping accessible to customers on 24/7 basis. Reduces Time and money spent as travel time and cost, to and from the store, is eliminated, and with online vendors selling different product ranges at different prices, customers can find a product that best suits their financial and qualitative demands. In some cases, companies will often offer the same products for less if it is purchased online. E-commerce benefits for the company. Globalisation in terms of product promotion and sales to reach a wider range of consumers. More efficient inventory management and stock control to maximise product availability. Just in Time (JIT) warehousing to eliminate Location and availability restrictions thus saving costs for both the company and the customer. Corporate image to establish identity and trust which is necessary for direct sales and to affirm the brand image. The use of computerised databases, fax, email, computer-aided designs, intranet and the internet as a whole has also equipped Tesco with some necessary tools for maximising operations and communications. From sourcing and dealing with suppliers of products via email, phone and fax, through to marketing towards in-store and online sales and promotions via Television, radio, electronic billboards, internet sites , and finally for customer support via phone, email, etc, e-commerce has completely transformed how Tesco works today. THE DISADVANTAGES OF E-COMMERCE. Security and privacy of personal information as a lot of people are still quite sceptical about using their personal bank details for shopping online. Programmes like viruses could cause a website to shut down and could also affect customers computers as a result of using the website. Product quality and delivery of items could be different from what the customer might be expecting. Internet speed and bandwidth in certain areas may make it difficult for customers to use the website hassle free. Staffing. The more e-commerce improves, the less human labour that is required to carry out certain tasks and this can cause a lot of human positions to become downsized or rendered totally obsolete which is not favourable to the workers. This has also led to the addition of new skill sets (to cope with new operations) which could mean new staff, new job roles and titles, and in some cases also involves retraining current staff in order to keep up with technological changes and all these have had its financial costs to the company coupled with the financial costs of implementing the hardware needed for particular e-commerce- related upgrades. There have also been some social costs as a result of e-commerce as there are now new job roles and titles which people have to adapt to via a cultural change. Also, since most items can be sold online to a much wider audience while cutting the costs of traditional retailing methods, a company does not have to spend so much on an expensive High Street presence and this in turn means that the traditional social gathering of shoppers is gradually fading away. RISKS INCURRED IN INTRODUCING E-COMMERCE TO THE ORGANISATION Social Risks. In addition to the potential loss of revenue that declines in employee productivity can create due to certain applications of e-commerce, an inappropriate use of the companys resources can also put a strain on business infrastructure and therefore result in performance and availability issues, causing users who are participating in work-related activities to experience a slow down. Information risk is another social risk that is impacted by employee use of company resources for personal reasons. Protecting information assets from destruction, loss and corruption is an important preventative measure. As employees use the internet for activities such as shopping, social networking and web surfing, the threats to the company information assets are greatly increased. If employees are using these devices to access personal e-mail accounts or shop online, or are using their work e-mail accounts in relation to shopping, phishing becomes more likely. Phishing can result in many damaging scenarios for enterprises such as loss of customer data, loss of enterprise intellectual property and damage to enterprise data. Social risks on the part of the customers can involve trust for a company in using their services online, putting out their personal information for transactions on-line, and even a change from the old tradition of shopping to a completely new system of doing things. Unregulated on-line buying could become a significant social problem as e-commerce spreads. The compulsive buying tendencies of certain consumers coupled with their affinity for the Internet is cause for special concern. Beyond inefficiency in markets, there will be social costs from reduced productivity, personal bankruptcies, disrupted families and ruined lives. Chasing the problem with credit and psychiatric counselling will be expensive both in terms of tax dollars and human lives. By way of prevention, existing fair trade practices prohibiting deceptive promotions and pricing should be extended to e-commerce. Fortunately, many people recover from addictions on their own and many more can learn the self-control required to avoid them, with a little help. Software developed within the Internet community could help on-line consumers maintain self-regulation. It could extend bundling by automatically totalling purchases across sites and sessions and provide a running on-screen meter of expenditures and time spent shopping, to promote self-observation. Automatic filtering of sites, types of products, or product stimuli (e.g., jpg files with product images) that foster excessive purchases would reduce exposure to shopping stimuli. To bolster the judgmental sub-function, shoppers could be prompted to make a shopping list before entering e-commerce sites and receive on-screen warnings when they surpassed referential norms or family budgets. Self-reactions could be prompted by forcing shoppers to re-allocate budgets, relate unplanned purchases to initial shopping objectives or respond to remonstrative e-mails from significant others before completing a purchase. Financial Risks. All companies face financial risk, even if they only operate via the Internet. E-Commerce companies may face a harder time securing external financing because they may not have a lot of physical assets to use as collateral or indicate their long-term viability as a company. Banks and other lenders may require a higher level of personal capital involvement by owners and officers before lending money to the company. Generating a positive daily cash flow may also be difficult because of the fees involved with website protection, hosting, electronic shopping carts and credit card companies. These fees are required by vendors of E-Commerce companies and cannot be avoided. To mitigate these risks, E-Commerce companies must employ accountants or use a public accounting firm to ensure that no internal waste of cash is going on and all expenses are relevant to the operation of the company. Since there are regulations surrounding data protection, consumer protection, distance selling regulations, etc, the company faces a huge financial risk if any of these security measures are breached, and such measures could potentially cause the business to go bankrupt. In general, the security systems needed in place to ensure safety of customer information as well as physical infrastructure of setting up an entire e-commerce system, failure of the hardware and/or software, attack via virus or computer hacker, fire and flooding all poses serious financial risks to the company if the revenue does not meet up with the expenditure used to secure these factors. THE IMPACT OF E-COMMERCE ON ITS CONSUMERS. E-commerce has completely changed the way people look at making purchases and spending their money. It has certainly had some positive as well as negative impacts on the consumers. The Tesco system has been active in making sure that the consumers experience the positives while almost making the negatives non-existent. This system of commerce has affected consumers in the way that many people can now do most or all of their shopping on-line and within the comfort of their homes or anywhere with a computer and internet connection. This can especially come handy for people with very busy lifestyles, the aged or disabled people. This has translated as a kind of empowerment as people can make purchases round the clock and even have their goods delivered at suitable times as well. Also, customer service with e-commerce has enabled consumers to have access to a wide range of specific and detailed information about their goods and purchases online. Intelligent agents can answer standard e-mail queries in record time and the use of help desk software allows human expert services to be expedited with minimal stress. Consumers can now also make use of a service that allows them to fully customise their products and services in contrast to buying in a store where products are usually merely standard. E-commerce has also allowed people who would otherwise not be interested in the physical side of technology to have somewhat basic ideas of the systems they need to operate in order to make use of the e-commerce systems which in turn is a kind of education in terms of having that new knowledge of how things work. In the case of the Tesco club card, consumers have been greatly impacted as they feel a personal connection with their retailer of choice that seems to give something back in the way of points and also make relevant offers based on previous purchases or potentially relevant products. All in all, from the stores using electronic check-outs, centralised stock control, etc to the website where consumers just place their orders and wait for delivery to their doorsteps, e-commerce has had a generally positive impact on its consumers. HOW TESCO MET THE CHALLENGE OF NEW TECHNOLOGY. IT systems have played a key role in helping Tesco deliver strong profits. The Tesco website, in which it has invested heavily in during recent years, saw profits leap by 21 per cent to  £48 million, on the back of an almost equal percentage sales rise. Online grocery orders have lifted by 10 per cent to  £7.5 million. The company has always been ahead in embracing and implementing new technology with an open-minded and optimistic approach despite the social and financial challenges. Advanced in-store queuing systems had improved shopping for 26 million of its customers by reducing checkout lines, Tesco said. The supermarket chain is using heat-sensing technology to monitor lines at tills. It also said improved scanners, better self service tills, and checkout cameras were helping it reduce queues. Self-service checkouts now account for a fifth of all of Tesco transactions. The supermarket took steps in 2008 to ready its technology for the Christmas sales peak, implementing ExpeT une performance management software from Macro 4 to manage its mainframe servers. Tesco has invested heavily in IT over the years, and this has played a strong role in improving sales, the supply chain, and efficiency across the company. The company has an in-house designed supply chain application, running on IBM system p servers based on UNIX. The companys five-year old warehouse in Croydon, which serves south-east London customers only and was also the companys first dedicated online hub, became profitable in 2008. The warehouse handles orders with a value of over  £1 million per week. Sales in non-food business Tesco Direct increased to  £180 million from a virtual standing start. The business, which is part of Tescos general merchandise division and has 11,000 items for sale online, had start-up costs and initial operating losses totalling around  £25m this year. Tesco said it is aiming to absorb these losses. Launched in 2006, Tesco Direct experienced IT problems that re portedly delayed its opening. The supermarket giant has 3,000 staff working at its offshore site in India, providing IT and administrative support around the world, including the recently launched US operation Fresh n Easy. The Indian site provides software development, as well as accounting and payroll services. Tesco also has a long running application development deal with Steria-owned outsourcer Xansa, targeted at ensuring its systems are up to date and in line with business needs. In store, Tesco continued to benefit from thermal imaging technology at checkouts, which speeds up queues and helps the store manage the flow of people and direct them to other tills. The company has a one in front policy, meaning that if more than one customer is in front of anyone at a checkout; it aims to open another till if one is available. Outsourcing and partnerships are other ways in which Tesco has been able to meet new technological challenges. In the case of their energy consumption, Tesco has outsourced the monitoring and regulation of this function to the HSE group to achieve the targeted reduced energy and carbon emissions by monitoring the plant and systems installed to ensure that they run and operate at their optimum. Their scope of services include: Energy monitoring, Plant performance, Management information, System improvement, Minor works and Maintenance. Their key objectives were To monitor the performance of new technologies, To provide feedback on plant and system performance, Management information is provided in a usable format and on a timely basis, Incremental improvements that will contribute to ongoing savings are identified and implemented, To be able to share findings from system performance, technologies and innovations. We have learned from our experience that there is often a frustrating gap between being able to identify the technology that is needed whether on low-energy lighting or lower-emissions refrigeration and being able to purchase and apply that technology commercially. We will work with our suppliers to reduce and hopefully eliminate this gap. Sir Terry Leahy (former CE0 of Tesco Plc). With the pace of consumer technology rapidly developing, Tesco now stocks an increased range of electrical products in-store and online. Responding to consumer demand, the retailer introduced Tesco Tech Support in 2008, making friendly faces available to expertly answer consumer technology queries, guiding them to choose the right product. Continuing to grow, the service now has more than 1000 expert advisors across the UK at 200 Tesco Extra stores and a dedicated UK call centre. The new http:///www.tescotechsupport.com website was created by an in-house team at FuturePlus. The site supplements dedicated online editorial content with all-new how-to tech videos fronted by Tesco Tech Support employees. THE SECURITY ISSUES IT ENCOUNTERED. TECHNOLOGICAL ISSUES. Some of the technological security issues the company encountered include the following which could have had disastrous effects on the organisation; User authentication: A user name and password combination, where the password can vary in length and include numbers and characters. Remember to include a system that prompts employees to change their passwords at regular intervals. Viruses: A computer virus is a bug that affects your computer in many ways, it can come from almost any source like disks but mostly from the internet or emails, it can copy itself and manipulate a computers files. It can alter or even destroy company computers and also the computers of users who log on to such services. By installing anti-virus protection, the company can protect against viruses from affecting the computer. Firewalls and performance: Effectively, installing a firewall can slow down the computer depending on what it does, and where it came from. Firewalls are programs that monitor traffic, which is the incoming and outgoing data communication that takes place when the user is online. The software needs to be configured to permit or deny communication with websites, as chosen by the user. In general, once configured, there is no real impact on the performance of websites, but it can take time to set up the relevant permissions between the site and the users computer. SSL (secure sockets layer) and HTTPS: A popular implementation of public-key encryption is the Secure Sockets Layer (SSL). Originally developed by Netscape, SSL is an Internet security protocol used by Internet browsers and Web servers to transmit sensitive information. SSL has become part of an overall security protocol known as Transport Layer Security (TLS). Https is not a separate protocol, but refers to the combination of a normal HTTP interaction over an encrypted Secure Sockets Layer (SSL) or Transport Layer Security (TLS) connection. This ensures reasonable protection from eavesdroppers and man-in-the-middle attacks. RSA Certificates: A digital signature is basically a way to ensure that an electronic document (e-mail, spreadsheet, text file, etc.) is authentic. Authentic means that the user knows who created the document and you know that it has not been altered in any way since that person created it. Digital signatures rely on certain types of encryption to ensure authentication. Encryption is the process of taking all the data that one computer is sending to another and encoding it into a form that only the other computer will be able to decode. Authentication is the process of verifying that information is coming from a trusted source. These two processes work hand in hand for digital signatures. FINANCIAL ISSUES. Prevention of Hacking and Identity Theft: Identity theft is when a hacker gets through to a users computer via a virus and acquires their personal credit card details, and then uses the details for their own personal use. Hackers get in to the computer system through ports, when the ports are open the hacker can get in, this may be with viruses or other means, users can stop hackers by installing a firewall onto the computer which blocks off the ports so hackers cant get through. Payment systems: using payment cards online has always given cause for concern as the information contained in them is quite delicate. The introduction of services like PayPal have ensure that consumers have a reasonable amount of confidence in using online service that require some sort of payment for products or services. PHYSICAL ISSUES Physical issues include factors like access to both company and customer information by employees through mediums that make it all too easy to tamper with, destroy, or steal such sensitive information. HOW THE COMPANY TOOK ADVANTAGE OF NEW DISTRIBUTION AND SALES CHANNELS. With the integration of computerised systems of data processing and communications, the company had expanded their capabilities in the area of sales and distribution. Products could be sold through channels like the Television, on radio, on billboards, via email, via the internet and affiliate websites, flyers, coupons and even by text on mobile phones. Tesco used all their available resources and avenues to make sure their products were available to a large consumer base both locally and internationally. The application of call centres which made use of numerous phone and computer systems meant that the process from marketing to sales could be run by a unit of dedicated employees. Tescos distribution network in the UK was among the best in the world. The company emphasized the importance of putting resources to the maximum use. Tesco stores in the UK received two deliveries a day one a fill up delivery and the other, a top up delivery. To keep the things simple for customers as well as for employees, Tesco adopted several new systems such as electronic shelf edge labelling all across the store, through which prices could be changed from a single central point; self scanning tills; self service pre-packaged products, coffee shop on mezzanine floor and also merchandising of fresh produce. Things like next day delivery and named day delivery have also been effective in maximising the use of these new sales channels. For existing customers, email marketing and direct mail marketing to provide special offers and promotions to customers is important. According to Humby (2003), e-retailer Tesco.com use what he describes as a commitment-based segmentation or loyalty l adder which is based on time of purchase, frequency of purchase and value which is used to identify 6 lifecycle categories which are then further divided to target communications: Logged-on Cautionary Developing Established Dedicated Logged-off (the aim here is to win back) Tesco then use automated event-triggered messaging can be created to encourage continued purchase. For example, Tesco.com has a touch strategy which includes a sequence of follow-up communications triggered after different events in the customer lifecycle. In the example given below, communications after event 1 are intended to achieve the objective of converting a web site visitor to action; communications after event 2 are intended to move the customer from a first time purchaser to a regular purchaser and for event 3 to reactivate lapsed purchasers. THE IMPACT OF E-COMMERCE ON THE BUSINESS. Selling through websites is the fastest growing method of trading worldwide. There are two main forms of e-commerce: Business to business (B2B) trading where companies trade and exchange information using the World Wide Web. Business to consumer (B2C) trading where companies deal directly with customers through web pages, and ordering is carried out online. Trading online enables businesses to reach much wider audiences while cutting the costs of traditional retailing methods. For example, an e-tailer does not have to spend so much on an expensive High Street presence. Although the outlay on developing a good website is substantial the potential benefits can be enormous. There have been impacts on direct marketing where promotion of products and services have been enhanced through direct, information rich, detailed and interactive contact with consumers. The cost of delivering relevant information and digitized products to customers over the internet is results in substantial savings to the company when compared with traditional methods of delivery. The process of delivery, cycle times, administrative work and time spent on other fu

Interview of Insurance Ad :: essays papers

Interview of Insurance Ad Interview of an Insurance Field Adjuster As I fumbled through radio stations, the unforgettable memories of a horn blaring, tires screeching, and turning just in time to see a truck smashing into my car came flooding back. Glass shattering, the airbag deploying, I had gasped for breath from the sudden impact. It is sad that most people will have to go through a car accident like this one at least once in their lifetime. Kathy Highland was the insurance adjuster from Shelter Insurance Company who was assigned to my case. Her professionalism, courtesy, and understanding changed this horror story into just another chapter in my life, a chapter which I am now able to look back upon as a valuable learning experience. The morning sun warmed the air that April day. It was Thursday around nine a.m. when I arrived at the Shelter Insurance building. I looked around Kathy's office noticing her diploma from the University of Oklahoma and a couple of certificates for the insurance company hanging on the wall. Directly behind her was a quotation in a small frame. It read, "When looking for the reason why things go wrong never rule out sheer stupidity." I asked Kathy what it meant to her. Kathy looked at me and said, "People come into my office thinking I have all the answers and I can give them everything they want." It is easy to see that Kathy's knowledge is what people desire. With her professionalism and courtesy she is able to ease the suffering of her clients and not compensate them more than the company is willing to. About that time the phone rang, and she picked it up and said, "Kathy Highland." She listened for a few seconds as she tapped her pen on the desk, and finally said, "What is the claim number." As if she had done this a million times, Kathy told the person on the phone to go ahead and extend the car rental and then hung up the phone. Clearly Kathy handles her work swiftly and methodically easing the anguish of the ordeal as easy as possible. As I asked Kathy, "Where does the claim process begin?" She started to explain to me the claim process from beginning to end. First the adjuster will call both parties involved in the accident. Kathy said, "This could be the fun part. Most of the time you get two different stories of the accident." Then the adjuster will go to the scene of the

Hypertension Essay -- Health, Cardiovascular Diseases, Stroke

Hypertension is one of the major risk factors for the development of cardiovascular diseases including stroke and may also have a role in the development of vascular cognitive impairment and vascular dementia [1, 2]. Angiotensin I-converting enzyme (EC 3.4.15.1; ACE) plays an important role in the rennin-angiotensin system and it is a carboxyl-terminal dipeptidyl exopeptidase that catalyzes the conversion of angiotensin I to angiotensin II [3-6]. ACE converts an inactive form of decapeptide, angiotensin I, to a potent vasoconstrictor, octapeptide, angiotensin II, in addition; since the ACE is a multifunctional enzyme it also catalyzes the degradation of bradykinin, which is known as a vasodilator [4, 7]. Therefore, inhibition of ACE activity leads to decrease in the concentration of angiotensin II and increases the level of bradykinin; consequently reduce blood pressure [8]. The discovery of captopril as a potent inhibitor of ACE led to the recent development of many series of novel structures with similar biological activity [9]. To date a wide variety of ACE inhibitors from various land and marine food sources have been reported such as milk [10], cheese [11], egg white [12], canola [13], peanut [14], rapeseed [15], antler [16], fish muscle [17], seaweeds [18] and tuna [2]. Many academic, scientific, and regulatory organizations are considering ways to establish the scientific basis to support and further validate claims for functional components or the foods containing them. Consumer interest in the relationship between diet and health has increased the demand for information about functional foods. More recently, the food industry, the agricultural community, and now consumers have shown a growing interest in the field of... ...dependent on the conversion of yellow tetrazolium bromide to its purple formazan derivative by mitochondrial succinate dehydrogenase in viable cells [34]. In conclusion, E. cava is a very interesting resource, due to the presence of unique phlorotannin derivatives with special bioactivities including ACE inhibitory activity. Ethanol enhances the extraction of phlorotannins specially dieckol from the brown seaweed E. cava. By contrast, in this study phloroglucinol derivative dieckol exhibited the strongest activity against ACE. With the results of this study we can suggest that the brown seaweed E. cava could be used in development of promising and potential functional food products. Moreover, it is expected that these findings will contribute to developing interests in basic research and potential applications of the phlorotannins in the relevant fields.

Propose a New Positioning Strategy for Acl Product

New market positioning for a new product Introduction ACL Clean has been a successful product in the Hampshire and the company expanded into the Essex region Market. However sales were low and public awareness was lacking. The company was using the majority of its funds on the products line extension and little on advertisement and product placement. This is the key factor in the poor sales in Essex because the public isn’t aware of ACL Clean and its benefits.In order to make ACL Clean a more successful and well known product, funds used for the product line extension need to be diverted to advertising in order implement a new positioning strategy in the Essex market. The best way to implement a new positioning strategy would be through the marketing of ACL Clean to first time buyers of cleaning equipment. In order to do this ACL Clean will need to promote sales, advertise, and become established in the public. Background In January 1990, ABC cleaning Ltd commissioned the clea ning equipment division.The cleaning equipment division expanded more by introducing new products. In the Hampshire area, effective promotion has helped ACL clean become a success. Market awareness is upwards of 80% and brand loyalty is high despite the high price. Advertising is used in the Hampshire for promotion. Ads target general cleaning equipment owners because the market is segmented more according to benefits sought rather than any demographic such as age, gender, or income. The major media is television using commercials with a humorous approach stressing quality and safety.ACL clean then decided to work on developing the product line, as well as branch into the Essex market. These line extension products were also offered in Essex as well as Hampshire, and there was no competition for ACL clean because other companies didn’t enter into this new â€Å"unknown† category of cleaning equipment. Over 5 years in the Essex market and sales are still low. The produc t is available in most key outlets like Tesco, ASDA, Sainsbury, and also in smaller chains. There is little sales promotions, since the website for ACL clean is where the sales promotions are. But there is no awareness of the site.The same pricing strategy is used in Essex as in the Hampshire, but ACL clean has not worked on justifying the cost in consumer’s minds. Furthermore the product line extensions took the majority of the budget leaving no funds for advertising. Without advertising there is no brand loyalty in Essex like in Hampshire. Too much has been put into the product line extension and not enough into the positioning strategy. As a result there is weak positioning and low awareness of this product. Statement of Problems The main concern is that ACL clean has an ineffective positioning strategy in that one was never established for the Essex market.The product was introduced and the line extensions were added, however no effective marketing was done to target the market they were introducing the product into. The lack of establishing a new positioning strategy in Essex has lead to low product awareness, no brand loyalty and low sales. Also, no advertising has resulted in little product position in the consumers mind. Essex consumers are unaware of the product and its benefits because there have been no commercials or ads or promotion of any kind. Strategies Alternative 1 The current positioning strategy has no strengths and many weaknesses as demonstrated in the lack of sales.Therefore a new positioning strategy must be developed. A target market should be defined so that advertising, marketing and public relations can be more focused and effective. ACL clean is a great product with high quality and safety, and with increasing health awareness and infection control campaigns by health authorities people, are more inclined to clean their homes more often. So by targeting the first-time buyers in the market, ACL clean could be effectively prom oted as a great product to help households enhance a healthy environment.This demographic is likely around the age of 25-35. Mainly people out of school, beginning a career or becoming more established, and are able to make a major purchase like a cleaning equipment and want one that will last them for as long as possible. Promoting ACL clean as the product that will achieve this will increase product awareness, create brand loyalty, and ultimately increase sales. However, as many first-time buyers have been using other cleaning equipment or have used other products related to car care, introducing ACL clean as a premium product will be a daunting task ecause there is already an established brand loyalty to other products, even though they are not as good as ACL clean. With establishment of the original ACL clean product in the market the opportunities of the line extensions are limitless. A great way to promote ACL clean in the Essex market would be through public relations. A grea t strategy would be to sponsor an event such as a cleaning equipment show in Essex region. Alternative 2 Another effective means of marketing ACL clean to the Essex Region as a great product with quality safety benefits would be through alliance with healthcare companies and local authorities.Alternative 3 Advertising is the most obvious and effective choice to place ACL clean in the consumers mind, just as it has in the Hampshire. Through TV commercials, magazine ads, and banners on web pages, the name and product information relation to ACL clean would be widely visible. Since TV is a major media source, having commercials that target the demographic of first-time buyers, would make the greatest impact for ACL clean. TV spots during primetime TV on major Essex stations would be seen by millions of viewers. Creating commercials that are exciting and fresh of the special features of ACL clean will catch viewer’s interest.

Thermodynamics and Heat Transfer

National Diploma in Mechanical Engineering Section A: COMPULSORY Answer ALL questions 1-12 1. A resistance temperature device has a resistance R0 = 100 ? at 0o C. If the resistance RT = 197. 7 ? in an oil bath, what is the temperature of the oil in the bath, given that RT = R0(1+? T)? Take R0 = 100 ? R0 = resistance at 0o C ? = 3. 9083 x 10-3 /o C (2 marks) NDE Thermodynamics and Heat Transfer Exam 2008 Name: _______________________________________ Read all the instructions before starting Do not open this paper until instructed Time allowed: 2 hours (plus 5 minutes reading time) Attempt ALL question in Section A (questions 1 – 12) Attempt any TWO from Section B (questions 13-15) Answer the questions in the spaces provided on the question paper. Use the back of the previous page if required. If you attempted all three questions in section B, then cross out the question you don’t want marked. The marker will mark the first 2 questions not crossed out. Show all relevant working. Marks will be awarded for method as well as correct answers Add your name to the top of this page 3. A steel shaft has a diameter of 25. 0 mm at 20 °C. A brass retaining collar has an internal diameter 24. 95 mm at the same temperature. If the shaft is cooled to 0 °C, find the temperature to which the retaining collar must be heated if is to have a clearance of 0. 10 mm when it is fitted to the shaft. Take ? Steel = 12 x 10-6 /oCand ? Brass = 19 x 10-6 /oC. (4 marks) 2. A steel casting (C = 460 J/kgK) of mass 2. 4 kg is cooled from 350 °C by placing in a container of 12 kg of water (C = 4200 J/kgK) at 18 °C. Assuming no heat is transferred to the container, calculate the final temperature. (4 marks) Instructions: Attachments: Marking: Formulae, saturated water tables Individual marks are shown on each question. There are a total of 70 marks representing 50% of your final mark in this subject. A minimum of 40% in this exam is a requirement for course completion Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 2 National Diploma in Mechanical Engineering National Diploma in Mechanical Engineering 4. Heat was added to 10 kg of saturated liquid water at a pressure of 2 bar at the rate of 20 kW for 10 minutes. Given the following information from the saturated water table, and assuming perfect insulation: hf = 505 kJ/kg, hfg = 2202 kJ/kg, hg = 2707 kJ/kg, Ts = 120. 2 °C a. Find the dryness fraction of the steam after the initial 10 minutes. (4 marks) 5. For the complete combustion of acetylene, C2H2: a. Write down the balanced combustion equation (2 marks) b. Determine the stoichiometric air to fuel mass ratio (5 marks) Atomic weights: H = 1, C = 12, O = 16, N = 14 Air composition: 23% oxygen, 77% nitrogen (by mass) . Calculate the time (in minutes and seconds) for which the steam must be heated at the same rate in order to become fully dry. (3 marks) 6. Prepare a labelled sketch of a manometer inclined at 5o to a horizontal datum. If the manometer contains oil with a density of 800 kg / m3, and a change in the pressure applied to it is 50 Pa, find the oil deflection in mm. (4 ma rks) O f il de lect ion 5o Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 3 Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 4 National Diploma in Mechanical Engineering National Diploma in Mechanical Engineering 7. Explain for the Seebeck effect and how it may be applied to temperature measurement. (3 marks) 10. Find the total heat transfer, per m2, through the wall shown below. Neglect radiation. Air temperature –5 °C h = 10 W/m2K Brick 70 mm thick k = 2. 3 W/mK Air Gap R = 1. 5 m2K/W (5 marks) Surface temperature 25 °C Gib 9 mm k = 0. 1 W/mK 8. The non-flow energy equation is given as Q – W= ? U. State the equation as it applies to: a. Isothermal b. Polytropic, and c. Adiabatic processes . (3 marks) 9. 50 litres of oxygen at 200C has a pressure of 850 kPa (abs). Find the pressure if its volume is reduced to 100 litres at: a. constant temperature Batts R = 2. 2 b. 850C 11. A chilly bin is 400 mm long, 200 mm high, 200 mm deep and is made from material 2 cm thick with a coefficient of thermal conductivity of 0. 028. The chilly bin contains ice – how much ice will melt in eigh t hours if the ambient air temperature is 300C? Take enthalpy of fusion for water as 335 kJ/kg. (5 marks) (5 marks) Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 5 Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 6 National Diploma in Mechanical Engineering National Diploma in Mechanical Engineering 12. Air is compressed from 99 kPaABS, 20 °C and 1. 5 litres to a volume of 0. 2 litres (5 marks) according to the law PV1. 25 = C. Find the following; a. Determine the mass of the gas Section B Answer any TWO questions from questions 13-15 13. A steam pipe is 75 mm external diameter and is 80 m long. It conveys steam at a rate of 1000 kg/h at a pressure of 2 Mpa. The steam enters the pipe with a dryness fraction of 0. 8 and is to leave the pipe with a dryness of not less than 0. 96. The pipe must be insulated – the material to be used has a thermal coefficient of conductivity of 0. 08 W/mK. If the temperature drop across the pipe is negligible, find the minimum thickness of insulation required to meet the conditions. The temperature at the outer surface of the insulation is 27 0C. (10 marks ) b. Determine the final pressure c. Determine the final temperature End of Compulsory section. Answer only TWO of the remaining questions. Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 7 Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 8 National Diploma in Mechanical Engineering National Diploma in Mechanical Engineering Answer question 13 here 14. A one-shell-pass, eight-tube-passes heat exchanger is used to heat glycerine from 25oC to 60oC at mass flow rate of 3000 kg /h. The heating liquid is water which enters the thin-walled, 12 mm diameter tubes at 90oC with a mass flow rate of 26 kg / min. On the shell side the convective heat transfer coefficient is 2000 W / m2 K and on the water side the corresponding value is 2400 W / m2K. After some time in operation a fouling factor of 0. 0004 m2 K / W develops on the outer tube surfaces. Take cGLYCERINE = 2. 43 kJ / kg K and cWATER = 4. 2 kJ / kg K. Calculate: Glycerine in Water Glycerine out a. The rate of heat transfer in the device before fouling occurs. (1 mark) b. Outlet temperature of water. (2 marks) c. Log mean temperature difference (LMTD). (2 marks) d. Coefficient of heat transfer after fouling has developed. (2 marks) e. Total length of tube required, using â€Å"dirty† coefficient of heat transfer (3 marks) Thermo exam November 2008 final. doc Version 23-Sep-08 Mechanical Consortium Printed 11/04/08 Page 9 Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 10 National Diploma in Mechanical Engineering National Diploma in Mechanical Engineering Answer question 14 here Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 11 Thermo exam November 2008 final . doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 12 National Diploma in Mechanical Engineering National Diploma in Mechanical Engineering Answer question 15 here 15. Argon gas flows steadily through a turbine. The flow is entirely adiabatic. Entry conditions are 900 kPaABS at 450o C with a velocity of 80 m/s through an inlet measuring 75 mm x 80 mm. Argon leaves the turbine at 150 kPaABS at a velocity of 150 m/s. Work output from the turbine is 250 kW. Given the following ideal gas properties for argon R = 208. 1 J /kg K and cp = 520. 3 J /kg K, find: a. Mass flow of argon Inlet 75 mm x 80 mm p = 900 kPaABS T = 450oC V = 80 m/s 250 kW p = 150 kPaABS V = 150 m/s (3 marks) b. Outlet temperature of the gas. Assume change of height negligible. 7 marks) Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 13 Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 14 National Diploma in Mechanical Engineering National Diploma in Mechanical Engineering Extra page for working if required Saturated water properties Thermo exam November 2008 final. doc Version 23-Sep -08 ?Mechanical Consortium Printed 11/04/08 Page 15 Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 16 National Diploma in Mechanical Engineering National Diploma in Mechanical Engineering Thermodynamics and Heat Transfer Formulary PV = mRT Q kA't x P1V 1 = P2 V 2 T1 T2 Saturated water properties P V1n 1 P 2 V2 n n 1 Q hA't A't R T1 T2  §P · ? 1? ?P ?  © 2? n 1 n  § V2  · ? ? ? V ?  © 1? Q R CP CV Q UA't 1 1 J W cp cv PV1 P2V2 1 n 1  ¦ 1  ¦ W  §V  · ? ? PV ln ? 2 ?  © V1 ? Q ‘ l = loD'T Q = m ‘h Q = m c ‘T ‘U P= Q 2? l't ?  § ro  · ?  « ln ? ?  » ? r ?  ¦  «  ©k i ?  »  «  »  «  »  «  »  ¬ ? 2S rlk ‘t x mcv ‘T F A for all processes Q Q H V AT 4 hA'T 5. 67 x10 8 P Ugh ‘U W OUTPUT 100 INPUT Q V W m2 K 4 K= Q UA't Mean t Mean ? 1 ? 2  §?  · ln ? 1 ? ?  © 2? 2  § V2 V12 m? h2 h1 ? 2  © T1 m h2 h1 S. T. P. = 0 °C and 101. 3 kPa N. T. P. = 15 °C and 101. 3 kPa Cwater = 4200 J/kgK For Air Cp = 1005 J/kgK Cv = 718 J/kgK R = 287 J/kgK ? =1. 4 Q W mc p T2 g z2  · z1 ? ? ? Thermo exam N ovember 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 17 Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 18 National Diploma in Mechanical Engineering Thermo exam November 2008 final. doc Version 23-Sep-08 ?Mechanical Consortium Printed 11/04/08 Page 19