Wednesday, July 31, 2019

A Month to Live

A Month to Live Everyone should live like today is her last day because no one knows if it will be her last one. If I knew I only had a month to live I would try to focus on things that are most important to me. I would spend a lot of time in prayer. God, who knows me better than myself, also knows I would have a lot of request. First, I would try to get all my business affairs in order for my family. I would want them to know about the life insurance policies, retirement benefits, and other matters they need to check on.I would make sure I told them about any details that were important to me such as funeral arrangements or burial location. I would also try to figure out who I wanted to have any of my valuable or sentimental possessions. This way I could give it to them before I was no longer here. Even though these practical details are necessary, I would spend little of my limited time concentrating on my worldly affairs because there are more important things to do.Next, I would take a little time to reflect on my life to see if I needed to make peace with anyone. If I knew I offended someone or treated someone badly then I would definitely want to make amends. If I was holding a grudge or thought someone was holding a grudge against me I certainly would want to make things right for both of us. I would want my friends to know how much they all mean to me. I would be sure to tell my family members how proud I was of each of them and that I expected them to continue to take care of each other.I would even like to tell my ex-husband that I forgive him for not being there to help support his children when they were growing up. Third, I would focus on spending time with my family, especially my children, grandchildren, parents, and siblings. We could sit and talk about our lives and all the wonderful times we shared. I would take my family on a vacation together. Just being able to sit and talk with them, seeing their smiling faces or reaching over to give them a hug, or just hearing their voices.Their laughter would make me very happy during my last month. Spending time with them is all I would want to do. Just as my life revolves around taking care of them, their happiness would be my main focus till my death. Finally, I would want a little peace before I leave this world. For example, I would like to sit under the trees remembering my life; I would appreciate the star, the sunset, and just the natural beauty of the world. I hope I would be able to think of my life and know I would not trade it for anyone else’s.

Tuesday, July 30, 2019

Peoples behavior Essay

Whenever I encounter any person from another culture, I am often struck by how much that person represents and is different from the idea I have of that culture. Particularly if the idea I have of that culture’s person is seen from his perspective. A recent conversation with a student of Japanese ancestry highlighted to me this realization. When I first saw him, I assumed that he would speak English with an accent or with some difficulty. To my surprise, it turned out that he was a native English speaker having been born in the United States. Sharing the experience with a friend, she related to me that one of her acquaintances who was born in Hong Kong who had difficulty with being understood in English because of a difference in accent despite having English as a first language. These incidents are prime examples of how cultural stereotypes. Considering the number of foreign students alone, many universities and other social institutions should be developing the competencies to accommodate their communication and cultural assimilation needs. Like in the article written by Brink Lindsey in 2007 titled The Culture Gap for the Cato Institute, culture, statistically and in practice, is an issue that is asserting itself significantly. Without these measures, many people are liable to have negative experiences associated with cultural difference which can motivate them to be ashamed or defensive about their heritage. Having had my own positive and negative experience in being associated with my culture, I know first hand the need to understand culture on an individual level. It has been very helful too that my recent experience with other cultures has been positive and has allowed me to constructively learn from the experience. Had it been otehrwiese, I can easily see myself to develop negative concepts regarding Japanese or Chinese cultures since I believe in positive reinforcement. More than anything else, communication ad technology is creating new dimensions to cultural exposure and exchange. Many of the stereotypes we have of cultures is being challenged not so much because of changes in these cultures itself. Even more importantly, I realize that my culture influences what I see in other in the same way that other peoples cultural backgrounds influence what they see in me.

Monday, July 29, 2019

Community Corrections Essay Example | Topics and Well Written Essays - 1250 words

Community Corrections - Essay Example The National Institute of Justice created and funded a program and devised a multi-year and multi-site federal effort; The Serious and Violent Offender Reentry Initiative. This initiative was created in confidence of improving reentry outcomes and evaluating this with five factors; criminal justice, employment, education, health, and housing. The program initially began in 2003, allowing the national Institute of Justice to track the success of the program (National Institute of Justice, 2012) Sixteen programs were divided among 14 states and included 12 adult and 4 juvenile facilities. The purpose of the program was not starting a new program but to increase funding and resources available to existing programs. Partnerships were formed between supervision agencies, correction agencies, state and local level agencies and any faith based agency’s that have approved programs with the Department of Corrections. Participants were each considered a violent offender, each below the age of 35, and represented all three stages of reentry; in prison, post release with supervision and post-supervision. The evaluation of this program sought to define how and if the program could lead to more integrated services among agencies, to what extent were participants in this program receiving services as compared to those who were not in the program and did the outcomes and benefits far exceed the cost of the program (Lattimore, & Steffey, 2009, p Es-5). In February of 2012 a final report was released with the findings of this study and recommendations for this community corrections program and initiative. Prisoner Reentry Services The program focused on 12 different reentry factors that were identified as crucial pre-release. These factors were known to be contributive to the success of the offender once released. The offender should have a case manager, who has assessed his /her needs, a reentry plan; the offender should have completed some programs while incarcerated; d id the offender attempt or successfully achieve this? Were life skills evaluated and any life skills education courses taken or available, did the offender take part in any prerelease employment services, mental health treatment or substance abuse treatment should have been available and provided to the offender, were personal relationship skills developed during incarceration?, Attitude counseling related to criminal thinking and behavior provided, were anger management programs utilized, and was the offender able to receive a GED or other education during incarceration (Lattimore, Barrick, Cowell, Dawes, Steffey, Tueller, & Visher, 2012, p Es-2). Those who participated in the program had longer times between arrests and fewer arrests after release from the program across all demographics. Those services associated with a longer time period before being arrested again were personal relationship counseling, criminal thinking and behavioral counseling, anger management and a solid re entry plan. These conclusions maintain the popular theory that personal development and programs that promote individual change may be more useful and successful than those which promote practical skills. This was true of female, males and juvenile offenders. Needs assessments and evaluations, reentry plans and participation in a reentry program, employment counseling, and criminal attitude and thinking counseling had no affects in any of the three groups on

Sunday, July 28, 2019

When does the use of professional discretion cross ethical boundaries Research Paper

When does the use of professional discretion cross ethical boundaries - Research Paper Example In the process of carrying on with responsibilities at the workplace, an employee would often find it necessary to rein in his personal activities and conduct, this behavior continuous on even if what is being done is not related to the job (Thomas 56). In the business world, consumers always make judgments about a company depending on the actions of its employees. This happens even if the particular activities are done with a positive intention. Professional discretion can be described as the choices an individual makes in his professional duties to be cautious about the things he says or takes part in. People that are fond of making discussions over issues relating to their personal are described as being indiscreet or lacking discretion. Ethics, which are also called moral philosophy, describes a category of philosophy that deals with learning of issues related to right or wrong, as well as the manner in which we are expected to live by such an understanding (Thomas 24). The concept of ethics concerns our ability as human beings to make proper moral judgments concerning practices that are right or wrong in accordance with the societal and moral expectations (Reynolds 23). Right and wrong refers to the qualities or judgments that are placed on people’s actions and their manner of conduct during their daily lives. Ethics play an important role in helping people establish proper moral choices especially when it comes to situations where moral issues are involved. It is important to realize that in our everyday lives, it is a desirable habit to have moral rules. This is not because they are useful in expressing absolute truth, but it is because they offer essential guides as far as normal circumstances of life are concerned. Different views have been raised concerning the need for ethics in our general life and professional activities. One of the views holds that human beings, in their professional and

Saturday, July 27, 2019

Discuss the advantages and disadvantages of the methods to estimate Research Paper

Discuss the advantages and disadvantages of the methods to estimate uncollectible receivables - Research Paper Example However, the disadvantage of such method is that it does not consider customers and their past trend for paying off their debts. It may be possible that in previous years, 20% of the receivable would have been uncollectible because customers were not trustworthy. However, this assumption may not be correct for the current year customers. In such a case, the percentage should also be revised accordingly. Another demerit of this method is that it applies to all of the company’s sales, which may include cash transactions also. It must be noted that uncollectible amounts are only against receivables (Barry, Ralph and Steven). It requires time to calculate uncollectible receivables by this method as bifurcation between cash and credit sales is difficult especially when the volume of transaction is high (Barry, Ralph and Steven). In this method, the collectibles are first analyzed as per their period. Such receivables may be classified as 15 days past due, 30 days past due, etc. Estimates are then made for debts beyond one year or other such criteria (Belverd and Marian). This aging helps to ascertain the will and financial health of the customer for paying off the debt. Another advantage of such aging method is that it helps to prioritize the efforts of recovery for individual debts based on the due days. More aged items are given more priority for recovery (Belverd and Marian). Disadvantage of such method is that it estimates those receivables to be uncollectible which may be received after certain time. It may be possible that the customer was willing to pay the amount, but he was unable to do that due to any reason such as liquidity crisis. Subsequently, customer may pay that amount which was expensed out as bad debt (Belverd and Marian). In this method, different classes of aging are applied different percentages for estimating the bad debts. For example, by applying 10%, 20% and 50% to 6 months, 9 months and 12 months old

Friday, July 26, 2019

CHOOSE ONE QUESTIONS FROM THE 5 QUESTIONS ON THE INSTRUCTION LIST Essay

CHOOSE ONE QUESTIONS FROM THE 5 QUESTIONS ON THE INSTRUCTION LIST - Essay Example The opinion of economists have varied on this issue regarding the considerable of the GDP is the appropriate measure to understand the well-being of the nation. While most of the economists have relied on this economic indicator as the main determinant of the standard of living, the others have differed stating that the other intangible and tangible factors like education, health as well as ecological environment to be important factors as well. Simon Kuznets who framed the term GDP even warned that the measure is not an appropriate indicator of the well-being of the nation (Kuznets, 1934). Thus is clear that the GDP was never devised to measure the well-being of nations. With the occurrence of the Bretton Woods conference this measure started being used widely in most of the nations of the world since 1944. GDP as an economic indicator The Gross Domestic Product of a country is the sum of the goods and services of the country taken at the market value. In order to understand the con cept of GDP it is important to know how the GDP of a nation is arrived at (Landefeld, 2008). There are a variety of ways in which the GDP of a country can be measured. The product approach measures GDP by summing the total production of all the enterprises during a definite span of time. Thus the value added of all the final products in a year minus the sum of the value added of the intermediate products gives the GDP of the economy. On the other hand, the expenditure approach considers the sum of the aggregate consumption expenditure, investment expenditure, government expenditure as well as the net exports of the economy. The circular flow diagram provides an idea about the income and expenditure flow in the economy that takes place involving the individuals, firms as well as the government. Therefore GDP measures the flow of the goods and the services that takes place in an economy. The income approach however calculates the sum of the total income of the individuals the firms as well as the government in the economy. From the various approaches it is clear that during the calculation of the GDP the monetary values are taken and hence no other intangible aspect could be captured by the GDP. In all these cases only the computation of the However in most cases it is considered that if the economic condition of the people improves the people of the economy would be better off. Thus it is not an ideal measure of the standard of living of the economy. Defects in GDP as a measure of the well-being of the economy The economic system is a subsystem of a larger system that drives the world. There are ecological, political as well as social systems which are intertwined. The effects of each of these systems influence each other and one cannot be thought of independently without thinking about the other. The economic system in a society can run only in connection with the other systems and depends on the other systems to a large extent. For example, in order to carry out the production in a factory system it is important to take the help of the natural resources as well as the human capital. Along with that the incorporation of the knowhow is also important. Hence the entire economic activity of production needs the intangible resources along with the tangible resources.

Polities please see attachment Essay Example | Topics and Well Written Essays - 250 words

Polities please see attachment - Essay Example In the matters of shaping the hospital policies and advocating for health reforms, nurses hence ought to rise from their slumber to ensure that policies are well advocated for and engage in arenas that are less familiar where laws and regulations that are result oriented are made and scarce resources made available (Abood, 2007). I admire Michelle Obama. She is equipped with the leadership skills, which surely will always give me the reason to have her as my role model. Basically, she can be viewed as a primary controller and a promoter. As a promoter, she is goal oriented, makes deliberate solutions and fears no threat. I might not possess these leadership qualities, but, she remains my best as compared to Hillary Clinton. Michelle knows to say what she thinks unlike Hillary. Women can lead, mentor and change the world. In the same way, nurses should do so in the health care

Thursday, July 25, 2019

IB English A1 Higher Level Essay Example | Topics and Well Written Essays - 1500 words

IB English A1 Higher Level - Essay Example The phrase appears in a speech from Creon, the King of the play and the man that wields the most power. He is attempting, by one means or another, to win over his son Haemon to his point of view regarding the burial of the corpse. Essentially, he also wishes him to accept a very straight-forward, but, as shall be seen, rather contradictory view of the nature of political authority. Creon states that â€Å"I must keep my kin in line, Otherwise folks outside the family will run wild.† Creon is the titular head of his family and so appeals to the fact that he must keep in his family in order for the city as a whole to follow suit. He then states that he will give â€Å"nothing but contempt† from someone who breaks the law and/or tells his masters what to do. But we soon he states an all-important â€Å"but†: Morality and virtue, the â€Å"right† and the â€Å"wrong† are less important to Creon than the absolute obedience to legitimate political authority. Indeed, political authority seems to trump any other concerns. He does not just state this opinion in isolation, he goes on to give an explanation for why this system is good not only for the ruler, but for the city as a whole: Creon’s rather tenuous theory of political authority argues that first, a ruler’s orders should be obeyed without question. Second, that if those orders are obeyed without question he will willingly give up power to another and then be â€Å"cheerfully ruled† and third that the whole city will essentially be one of order and discipline. Absolute rulers do not tend to give up authority without a fight or, in a hereditary type of system, before their deaths. The old adage that power corrupts and that absolute power corrupts absolutely seems to be conveniently avoided by Creon who, with his experience of power, and knowledge of his family history, should know better. Creon essentially sets up a Cartesian world in which a leader is either obeyed (leading to a perfect society) or

Wednesday, July 24, 2019

Nursing Care Plan of Skin Essay Example | Topics and Well Written Essays - 750 words

Nursing Care Plan of Skin - Essay Example Benito was asked how long he has had the growth on his back. He responded by indicating that the swelling had been there for a period of about six months. The next assessment involved asking Mr. Benito some few questions to help in carrying out the characteristic assessment. The patient was asked if the growth had been bothering him in any way to which he responded that it did not. However it as noticed that the growth was releasing some kind of fluid. The patient further stated that the mole was dark in colour and oddly shaped. There was also an assessment of aggravating factors but none was found. The next course of action in the procedure was to carry out background check on the patient. This is normally done to find out the patients lifestyle or any other complication that he might have had so that this could be taken in to consideration when deciding on the treatment to be given to the patient. It was found out that the patient was a competitive athlete who spends a lot of hours of the day training. He also indicated that he does not wear any kind of skin protection because he believed that his dark skin cannot be hugely affected by the rays of the sun. In addition, he said that he usually goes to Hawaii for windsurfing and to relax in the each. After the above discussed assessments that were done, the next one was now the skin assessment test which involved physical examination of the growth that was on the patients back. The A B C D E method was used to check and examine the growth on Benito’s back. The A in the above method stands for asymmetry. This is used to check if half of a mole does not match the other half. It was found that the mole was irregular in shape. The B stands for Borders and it involves examining the borders of the mole with the finding being that it did not have any regular edge, but rather it had several notch areas. The C stands for Changes in colour. For the case of Melanoma, which Benito

Tuesday, July 23, 2019

Kraiger and Holton and Kirkpatricks models' investigation Essay

Kraiger and Holton and Kirkpatricks models' investigation - Essay Example Kirkpatrick's four stages of criterion, including the responses, knowledge, behavior, as well as results, all have been utilized to steer the training assessments in addition to the measurement of training performance for more than 40 years. The recent belief within the training assessment literature expands Kirkpatrick's agenda. The measurement of knowledge criterion characteristically explained with reference to an alteration within declarative information or else expertise has developed beyond the theory within stage two of Kirkpatrick's model. Kraiger along with his colleagues extrapolated the fact that knowledge within training can be categorized into three groups of criterion, cognitive, expertise based moreover sentimental learning. The multidimensional model of training routine is the one, within which disparate the modeling demeanoured with the job performance criterion. This condition is altering as additional researchers take up the Kraiger model within their training investigation. When presenting the training criterion, a lot of diverse provisions appear to be used in exchange of each other: such as the training assessment, training efficiency, substantiation, or appraisal. Time and again, these provisions have extremely dissimilar meanings. In terms of Kraiger and Colleagues, this kind of assessment is carried out to resolve whether the training objectives were accomplished and whether achievement of those objectives ended in improved performance on the post, and training efficiency seeks to learn why training did or did not realize its proposed outcomes. Training efficiency is a much expansive notion moreover encompasses training assessment as well as its criterion. Q2) Identify and describe three potential problems with using self-report measures in HRD evolution. How can these problems be minimizing Answer)The faction of self report Measures is decisive for accomplishment; however it is an unsatisfactory art, as adept by nearly all corporations. Moreover time and again, the spotlight is on established, technological measures, rather than on the explicit wants of the individuals concerned in addition to the preferred outcomes. This becomes even more stressed within the time and again unclear region of self report measures. If we take a much closer look within this segment we would discover that in addition to challenging those inked with the self report measurement to toil towards knowledge and development can guide to measures that are additionally straightforward as well as more precious to all. The foremost, and most elemental, dilemma with the utilization of self report measures is the exploitation of two comparable provisions: assessment and assessing efficiency. The word assessment is a noun that explains a compound business procedure of shaping value or else merit, plus the expression assessing efficiency is a verb idiom. Assessment is a much bigger progression than assessing efficiency. The next trouble is its malfunction to clearly deal with the disparate reasons for assessing the job. Present-day business requirements may perhaps adjoin a fourth rationale to

Monday, July 22, 2019

Culture and People Essay Example for Free

Culture and People Essay Does culture have an impact on who we are? Have you ever notice that what is the main difference between people around the world? People eat different foods, wear variant clothes, believe in various things, and have different appearances but the main difference is how people behave and this difference comes from their culture. Culture is the shared knowledge and schemes created by a set of people for interpreting, expressing, and responding to the social realities around them. Culture means the series of norms and values that the public believe in and behave accordingly. These beliefs comes from parents and goes from one generation to another and influence people’s behavior. Culture has an impact on people’s life because it affects people’s life, their society, and the world. Parents are the first teachers that kids learn lot of things from their fathers and mothers. The environment of a family that a child grow up in is the most important thing that influences her/his behavior because children learn how to live like their parents and parents try to teach their children the culture that their society has. People are influenced by their culture and sometimes more than one culture can be influencing a person, such as Native Tribes living in a modern society. If people from different Countries were raised in the same society then those people would have the same culture and those people would believe in the same things. Traditions help people to show their beliefs, for example Halloween is a holiday that is showing what American people celebrate, it represents as a symbol for American culture. Most people would agree that their own has been important to their shaping and development, enriched their lives and often, led to their life decisions but their culture is the products of human action which is inherited independently of the biological genes. The way that one person think not only affects people around that person but it also affects that Society. The difference between cultures will never end because it is hard to change what people believe In. People may learn lot of things from their friends but when a person wants to make a decision he/she will always compare it with her/his culture. For example personal zone is one of the traditions that most of the American people do. In the personal zone, the conversation gets more direct, and this is a good distance for two people who are talking in earnest about something. Society has always been impacted by technology. Each invention has affected how people relate to one another and how cultures have expanded or ended. Technology impacts how cities grow, where people live, and who owns what. Technologies are the reason a few people are very rich, that people are more social, and that teaching and learning is changing. People in the 21st century are at a crucial time in history where as educators can make a difference in how students interact with one another and make a place in society. People developed a language so they could communicate and invented tools for agriculture, to build homes, and to create weapons for hunting and protection. Over time many people have been influenced by other cultures and that is where different cultures meet each other. So this is the cultural evolution which people affect other cultures and cultures affect people as well. For example when a person moves to another country he/she gets influenced by that country’s culture and also that person can affect her/his society too. People’s culture influences their belief system which affects the way that people see the world . Although culture is integrated with sociology, anthropology, psychology, religions , and other aspects however this paper focuses on people’s behavior, globalism, and the cultural evolution. Culture makes societies unique, making it an essential element in influencing people’s everyday lives. It is also important to be able to recognize and respect other cultures, and not believe ones own culture is more valuable or superior than the rest. Hope that one day there would be peace all around the world and all people would speak the same language.

The Impact Of Globalization On Employment Commerce Essay

The Impact Of Globalization On Employment Commerce Essay Globalization has in no doubt affected the way people work. It has resulted into radical and rapid changes that call for adjustments in employment policies of different organization. This report presents a report on the effect of globalization on employment policies. The National Bank of Abu Dhabi is going to be used as our case where its employment policies are going to be highlighted with special considerations on how this affect it industrial relations. The report begins by describing what is meant by globalization followed by a brief analysis of the National Bank of Abu Dhabi, its employee profile and its achievements. The report will the highlight the impact of globalization on employment strategies followed by a close examination of what effects dual labor has had on the banks industrial relations. Grievance procedures of the company and how it relates to the UAE law is going o be captured too with special consideration on how the bank makes its employees aware of these procedu res. The conclusion will contain three personal recommendations on what should be done to put the bank at par with other financial institutions in the region and the world. The concept of Globalization With the world becoming a global village based on modern advancements in technology, trade political, socio-cultural norms and world economies, the forces of change are so strong to an extent that all aspects of life call for adjustments. This phenomenon is referred to as globalization (Bentolila Gilles, 2003, p. 56). It involves a process that leads to transformation of local and regional cultures into international or global ones thus unifying a society and making it work together as one. This has culminated into establishment of international economies through trade, flow of capital, investment, migration, and technology flow and its effects. Traditional barriers maintained by governments are the main victims of the trend as people are forced to abandon the restrictions and actively engage in different affairs at an international stage. Ways of doing business have not been spared by globalization either. The force has called for adjustments in different business field s especiall y in human resource. Employment policies have been adjusted to fit the modern world requirements of the labor market in order to attain any targets of an organization. Organizational behavior places labor as one of the most important factor that determines performance (Holley et al. 2008, p. 11). This paper seeks to highlight the impact of globalization on employment strategies with further emphasis shifting to mitigatory mechanism that are employed to face off challenges that might come with this. The National Bank of Abu Dhabi in the United Arab Emirates is going to form an evaluation platform for this research and thus we will be able to establish and understand the grievance procedure in place in the company and its impact on industrial relations. Grievance procedures are simply the protocols that employee and employer follow in order to address employee problems amicably and satisfactorily. Company information Based in the Arab world, the National Bank of Abu Dhabi is among one of the most competitive financial institutions that has committed much of its efforts to competitively serve both local and international customers. Under its chief executive Mr. Michael H. Tomalin and board chairman H. E. Nasser Ahmed Khalifa Alsowaidi, the bank has managed to scoop several top awards for its services, the most notable one being 2011 award given by Thompson Reuters and complinet recognizing the bank as the most recognized international compliance officer as presented by john garret, the groups general manager and chief compliance officer (The National Bank of Abu Dhabi, 2011). The bank also boasts of being the owner of the best investment product. It was the best arranger and best financial information provider via the internet. These awards together with many others are associated to the banks employee commitment to its vision that fosters on the future recognition of the bank as the worlds best Arab bank. These successes are also expressed in the banks mission to provide its customers with exceptional services that create products and delivering services of enduring value which, will help its customers grow. The bank has a set of values that are in no doubt behind its efficiency in providing quality services to its customers. Some of these values are the need to understand customer needs, teamwork, being accessible around the clock, withholding the value of stakeholders, recognizing people as its greatest asset and thus safeguarding their interests and acknowledging the need to be loyal to its heritage and maintaining a positive global outlook (The National Bank of Abu Dhabi, 2011). The bank has also made a few pledges to its customers which includes recognizing them, understanding their needs, listening t o them, dedicating its energies to serving its customers and eventually grow with them. By analyzing these pledges, there is a clear indication that good and well motivated employees are key to achieving them. It is worthy to acknowledge that unless the bank has an elaborate grievance addressing procedure, all of its mission and vision cannot be realized. The bank has some of the best employee focused attention which is greatly supported by good employment policies. The bank employment policy first recognizes its employees as the most valuable asset and goes ahead to provide the most rewarding working environment and compensation packages that allows them advance their careers. This has made the bank the biggest employer among other commercial banks with its employees coming from all over the world. Other employment policies of the bank focus on Emiratization which simply means attracting the most qualified nationals of the United Arab Emirates (UAE) by providing a successful and a well rewarding banking career. Pre-employment training is also embraced by the bank employment policies which also create room for employees to seek further training while still working. This come in form of time allowances for various new training programs (The National Bank of Abu Dhabi, 2011). Training of potential employees is among the banks employment policies which seeks to absorb freshly graduated students from different academic fields thus creating a window of diversifying strategies which do not have to come from business scholars only. Globalization has a lot of influence on employment prospects of the bank. Despite the fact that the government is encouraging Emiritization (employing more UAE citizens), the bank has 61 percent of its employees from outside UAE with only 39 percent being UA E citizens by 2010. Out of this number, 60 percent are female. Impact of globalization on employment strategies Globalization and Job security Globalization has brought about a very fierce competition in employment. This is because through globalization, there is massive migration of highly trained professionals who are seeking lucrative careers (Bentolila Gilles, 2003, p. 59). National Bank of Abu Dhabi is among top ten in the list of the most secure banks in the world. It has also attracted many professionals from different parts of the globe. This has come along with a lot of job insecurity as any employer is likely to opt for the most qualified. Security of tenure has declined and jobs have become less permanent. The net effect of this is the emergence of non-standard form of employment such as temporary and part-time employments. This has lead to adjustments in banks employment policy which is now shaped to accommodate all forms of employment forms. Employee turnover characterized by workers mobility has also increased leading to notable changes in worker- employer relationships within the banks workforce. Employees have in many occasions expressed their reservations to dispensable employment agreements with most of them working in fear of losing their jobs uncertainly. This greatly affects employees who have not yet had an opportunity to upgrade their educational backgrounds thus reducing their employability. However, the bank has made a provision in its employment policies grievance procedure to offer training opportunities for it employees which is supposed to help them advance their career. Globalization has come with a lot of technological changes and just like any other bank, the National Bank of Abu Dhabi needs to employ people with the most recent skills in technology. Though the bank has not had to send people packing based on modern skills acquisitions and technology awareness, most job quits have been voluntary where employees go back to training institutions for further training (The National Bank of Abu Dhabi, 2011). Globalization also comes with a lot of competition from other competitors thus effecting job security of employees. Companies have in many occasions laid off some of its staff to cut down on costs of doing business and in order to face competitors with a least expensive and efficient workforce. The bank has at point succumbed to forces of globalization such as those to call for outsourcing of labor. This involves employing workers from different parts of the globe without necessarily allowing them enjoy normal employee benefits such as security of tenure. This has further made jobs more insecure as outsourced labor might be just as effective as original. This has also resulted in a change in the banks employment policies which have also shifted to outsourcing and training it employees on probation before full engagement. Effects of Low skilled workers on employment policies The level of education possessed by workers has in a big way influenced their employability at the National Bank of Abu Dhabi. It is evident beyond any reasonable doubt that only the best trained workers are securing lucrative careers with the most reputable companies. The bank emphasizes on its quest to tap the best and most skilled professionals from across the world, a fact that is boosted by the globalization era. Although the banking sector has not experienced much layoff due to under qualified staff, the situation has it that most original or traditional employees are being outdone by recently graduated people thus putting their employability at risk of being lost. Technology plays a major role in evaluating qualifications as it is one of the most powerful forces globalization reckon with. Employment policies have therefore been adjusted to enable the bank acquire the most qualified individuals or still by offering a training package before being employed. Education does not on ly affect employability but also earning. Being a leading financial institution, the National Bank of Abu Dhabi employs the best candidates for different jobs right from the management to subordinate (The National Bank of Abu Dhabi, 2011). This implies that the institution is only ready to pay highly to the best employees and therefore pushing off least qualified individuals. Studies show that lowly ranked jobs that require low academic qualifications are going to less competitive environments with more competitive environments taking on the best. Employment strategies of the bank have not depicted any form of bias on locals and foreigners. The only disparity comes from the governments policy to have the number of UAE nationals working in local institutions increased. The bank has responded to this positively by increasing UAE nationals working in it from 36 percent in 2009 to 39 percent in 2010 (The National Bank of Abu Dhabi, 2011). This move has however not caused a lot of changes in its employment policies since the exte rnal world offers the best compared to the local labor market. Effects of Globalization on Sweatshop Exploitation Toxic Imports Globalization has by a great way encouraged the import of cheap labor especially form countries suffering from unemployment but with good educational back grounds. This means that the employees of this nature are highly qualified but willing to take on low paying jobs and at the same time work for long hours (Bentolila Gilles, 2003, p. 63). This phenomenon is normally associated with developed countries or those perceived to be rich. UAE is no exception as it has some of the best institutions recognized globally such as the National Bank of Abu Dhabi. This bank has also fallen prey to this problem as most of its workforce (61 %) come from outside UAE. Although this cannot be directly associated with foreigners being cheap to hire, it is true that dealing with local or native employees is more technical compared to foreigners. The law has put down very robust and complicated policies that aim at protecting its citizens from exploitation. This may in one way or the other influence the banks employment policy status of absorbing more foreigners to work there. The bank is also at risk of importing toxic labor as incompetent workers could be imported. This kind of workers are believed to be interested short time benefits and are therefore likely to put in extra efforts to achieve their short term objectives and thus becoming toxic not only to future company prospects but also to the labor market. This is one of the major reasons the government of UAE has put it mandatory for employers to have at least 40 percent of their employees to be UAE nationals. This move is aimed at embracing the future endeavors of the national economy and the countrys future in general. Although sweetshops may have a positive effect on a firms profits, critics argue that there is a more negative effect in the future prospects of a company since its public image could be tempered with thus demeaning its performance. Locals are also likely to give a cold reception to the bank and withdraw their trust from it thus jeopardizing its operations in the region. Sweetshop and toxic workers also pose as a risk to original employees by reducing their job security because they are cheaper to hire. His is another challenge the National Bank of Abu Dhabi is facing as a result of it employing a huge number of foreigners who are recognized almost equally by UAE labor laws. Globalization and technology Among the achievements attained by the National Bank of Abu Dhabi is being in the forefront in implementing highly technology based services. This is in line with what globalization comes with especially in information technology. The bank won the best mobile transaction and the best prepaid card categories from the smart card awards in the Middle East region. This indicates that the bank has a better chance of surviving in the world of technology thus attracting more customers (The National Bank of Abu Dhabi, 2011). However, the bank is equally faced with challenges that come with this. Technology applications call for a reduction of the labor force as it permits performance of different tasks without involving any people. Technological globalization also calls for job cuts across all sectors especially in low profiled jobs such as auditing and networking. This occurrence has forced the bank to adjust its employment policies to match the current conditions by cutting down the number of people it employs each year. The use of technology has obviously affected the way the bank employs people be it from the UAE or the Diaspora. Dual Labor Market and its impact on industrial relations issues in the bank The United Arab Emirates has experienced a lot of changes in trade in the recent past. It has become a major commercial center with the economy becoming more diverse and dynamic, serving as a major re-exporting center in the Middle East and other parts of the world like Africa. The emirate has attracted a lot of attention from investors simply because it has very few logistical costs which make business operations easier. This has lead to an increase in financial activities due to improvements of business in various industries such as tourism, transport and banking among many others. Such changes in any economy will in no doubt attract a lot of people who will be willing to work there. This notion is further guaranteed by the international chain of events and changes in the way people do business. Globalization has come along with a dual labor market effects which includes effecting changes in industrial relations issues of many organizations. This phenomenon is believed to divide the labor market into two namely primary and secondary sectors. These sectors are either identified with high or low value added workers or along formal and informal sectors. A gap between locals and foreigners exists in the National Bank of Abu Dhabi as much as job levels are concerned (The National Bank of Abu Dhabi, 2011). This is evident from the way the bank has left short term employment to foreigners as these comes with no or little promotions to higher positions. The secondary sector of the dual market best explains this. Wages offered are deterred by the market forces and therefore subject to change whenever economic drivers change. This kind of jobs is also characterized by low level skilled workers, low earnings, impermanence, easy entry and low returns basing on ones experience. The Natio nal Bank of Abu Dhabi has in many occasions advertised such jobs outside the country and especially on the internet. This implies that the most preferable source of these workers is the Diaspora. Although the bank is ranked as one of the best employers basing on what it offers to its employees as salaries, workers who fall under secondary sector of dual labor market receive the least payments. This effect is as a result of the dynamism experience by the world labor markets as a result of globalization. Dual labor market theories assert that immigration of workers is as a result of economic globalization and effective penetration across boundaries by potential employees (Holley et al. 2008, p. 52). Therefore, this is a major effect of globalization of employment policies o the National Bank of Abu Dhabi as it employs 61 percent of its employees from outside the country. International trends of migrations by workers are controlled by labor demands from modern civilization. Industrial relations of the bank have therefore been affected by these changes prompting the bank to seek cheap labor from all over the globe. Dual labor conditions in the Middle East are still so much prevalent as a result of low numbers of local professionals which encourages foreigners come looking for jobs in the emirate. The net effect is that foreigners have the largest employee stakes in most UAE based organizations. The grievance procedure in place in the company and its impact on industrial relations A grievance is defined as any form of discontent affecting an organizations performance and thus can be termed as either being legitimate, unvoiced, oral, written or even ridiculous. If this situation is not correctly addressed, it may lead to a very poor relationship between the employees and the management. Such conflicts are very detrimental to any organizations performance and thus very injurious to customers who depend on such institutions. An organized form of settling these matters of employee dissatisfaction is referred to as grievance procedure. Whether unionized or not, all companies are required by the UAE law to have a well established grievance procedure. The National Bank of Abu Dhabi is no exception as it has established good communication mechanisms courtesy of its human resource department. The bank allows it employees to join labor unions in the country (The National Bank of Abu Dhabi, 2011). By so doing, the bank expects to receive all grieving matters concerning its workers who happen to be from UAE and the Diaspora. Staff awareness is highly regarded as the bank organizes several conferences among its employees with special consideration of both local and imported workforce. These conferences employ a few variations in addressing employee grievances because of other organizational structures of the bank since the needs of different workers are varied or distributed along the general spectrum of employee grievances. For instance, other workers might be complaining of salaries while other could comfortable with what they earn but not with the working environments they are subjected to. Different institutions have different grievance procedures which involve a series of successive steps. The National Bank of Abu Dhabi has made it clear to its workers of the four steps it expects it follow which are; Holding discussion conferences among its aggrieved workers in presence of a supervisor and if possible a representative from the workers union. Hosting of constructive meetings between the middle management and their counterparts in the worker union. Top management then meets to address the grievances together with the top union leaders with both parties being formally informed by their juniors of the previous meetings The fourth and the last step involve an arbitration process that involves close scrutiny of the problems. It is from this dialogue that workers are expected to have their grievances addressed. Since employees could be having different demands especially in salaries and other remunerations for local and foreign employees, the bank has different panels that take care of each side separately (The National Bank of Abu Dhabi, 2011). Grievance procedures are equally upheld by the labor laws of the United Arab Emirates. According to University of Pennsylvania; Middle East Research Institute (1985, p. 67), the law has undergone a series of transformations since effects of globalization started taking place. The federal law number 9 of 1980 is the most commonly used piece of legislation when it comes to labor matters. This law defines who an employee is with the most important point for this research being that it does not discriminate employees by their places of origin. Therefore, we can say that the laws go along with what the National Bank f Abu Dhabi employment policies that allow it employ much of its employees from outside the country (The National Bank of Abu Dhabi, 2011). Termination of employment as a solution to a worker-employees crisis is also embraced by the UAE labor laws. This law focuses on the need to have an employee pass a test in whatever job they apply for. The law allows a six month probation period under which an employer is allowed to dismiss a potential employee if he or she fails to fulfill all the requirements. Comparing this with the National Bank of Abu Dhabi employment policy, this law seems to go hand in hand with the presence of temporal and non-standard employment status such as contracts and internships (The National Bank of Abu Dhabi, 2011). This opportunity is mostly beneficial to an employer as this allow him or her to terminate employment without giving terminal employment benefits. These grievances laws do not address the biases in nationality of employees. It recognizes anybody legally allowed to work there as any other employee. The only disparity found in labor laws of UAE based on nationalities is the clause that recognize the use of Arabic as the official language of writing and keeping records. The law however allows the use of other languages in writing but still maintains that Arabic prevails in any situation therefore calling for documentation in different languages as long as Arabic remains official. The law also requires an employee to engage constructively with his or her employer for negotiations before any final decision is made. The employer is required to present his or her grievance to the employer in writing (failure to which no steps can be taken) and followed by meetings to discuss the claims (University of Pennsylvania; Middle East Research Institute, 1985, p. 69). The law also allows employees to file appeals against employer decisions which might not be necessarily correct. The law is not seen to favor the UAE nationals per se but it is seen to encourage institutions to employ the locals. The government has embarked on a very serious campaign to increase the number of UAE nationals in what it calls Emiritazation the only distinction seen between foreign and local employees. Procedural addressing of employee grievances by the National Bank of Abu Dhabi by engaging them in discussions matches the law provision for informal settlement of these conflicts. The law allows employer and employee to solve their issues by themselves without necessary going through the law. Basing on such procedures used by the bank in addressing its employee grievances, it is correct to say that the bank concurs with the labor laws of UAE. These laws have had a positive impact on both employer and employees as they allow them solve their differences on a neutral platform. The UAE has generally adapted the international standards of grievance procedures. This decision has resulted in employees of the bank settle for it. The procedures seem to be all inclusive as the deal with all types of grievances that may arise, a reason that may be behind the acceptance of the procedure by most if not all employees. Conclusion Globalization has come along with many changes especially in the labor markets. Companies have been forced to adjust their employment policies to match with the modern global demands. The National Bank of Abu Dhabi is one of such institutions that are faced by challenges that come with globalization. The overall effects as found out include changes in labor markets which permit export of labor to other countries. This is proved by the fact that 61 percent of the banks employees come from outside UAE. This pressure has caused a change in employment policies especially in seeking the most qualified individuals. High influx of employees into the country has made the bank embark on a thorough training program before formal employment. This has helped in sieving out under qualified employees. The UAE laws on labor are also conversant with the new trends of labor as dictated by globalization. It recognizes foreigners just like it does to locals although it advocating for higher numbers of UAE nationals working in local firms. The National Bank of Abu Dhabi has a well established grievance procedure. It caters for some of the most notorious hitches of its employees by calling for dialogue with its employees. This offers an opportunity to informally solve any problem and thus avoid affecting its performance and public image. Although industrial relations of the bank have been affected by the changes in the labor market, the institution maintains its quest of the best employees by tapping the best talents through its thorough training programs. This has enabled it maintain a sound relationship with its employees thus retaining its leading position in the region and the world as the best financial institution. Basing on what has happened and what is likely to come, I would recommend the following actions to the institution in order to maintain and improve its local and international image. Avoid any policy adjustments that are likely to create a bias between locals and foreign employees. This is because the word is changing at a very rapid and steady rate implying that the future call for more integration. Any attempts to embrace such moves will make the bank more local and thus repel international attention. Focus on employee affairs interested programs such as training. This should be done by coming up with training packages such as refresher courses. This will in no doubt boost the companys grievance procedure. The government should also come up with labor laws that are suitable and matches todays trends of doing business. As much as the government would wish to advocate for better employment status of its citizens, it should bear in mind that the world is changing meaning the firms even in the UAE will succeed when putting on a global face. It should encourage a competitive process like calling for acquisition of better academic skills which will obviously address the issue without being detrimental to any sector of its economy.

Sunday, July 21, 2019

Impact of Urban Living on Biodiversity and Ecosystems

Impact of Urban Living on Biodiversity and Ecosystems It is estimated that almost more than one half of the worlds population is presently living in urban areas (Sakieh et al. 2016; Weigi et al. 2014). In many parts of the world, increasing urban lands has caused changing land use and land cover (LULC) (Wu 2014). Biodiversity, ecosystem processes and functions and human habitants in an urban environment are influenced by the speed and spatiotemporal pattern of urbanization (Wu et al. 2011; Asgarian et al. 2015; Sangani et al. 2015; Wu 2014; Jaafari et al. 2015). Landscape beauty is being affected by LULC changes and urbanization has led to the destruction of aesthetic values in many parts of the world. Scenic landscapes, as one of the ecosystem services, are elements of the environment with the potential for human enjoyment and in some cases they are considered as valuable parameters for nature conservation and management (Bishop and Hulse 1994). The landscape is continually changing due to human activities but its aesthetics usually su ffers from poor quantification and inclusion in management plans. According to Naveh (1995), scenic landscapes are products of interactivity between humans and natural systems where natural landscapes become inhabited, influenced or altered by mutual relationships between ecological and socioeconomic processes. Such interrelated feedbacks can lead to physical modifications of the environment that ultimately can be seen, so landscape aesthetic assessment seem to be essential in land use planning. Understanding, analysis, monitoring and modeling of urban growth is crucial for the management of current urban systems as well as for the planning of future growth (Zhou et al. 2014). Geospatial predictive models and change detection methods can provide a further level of understanding of the causes and impacts of urban growth mechanisms (Sakieh et al. 2014a). In the process of decision making, land managers need to examine the consequences of the urban development process. Regarding the progress in computing power, easy access to spatial data sets and development of functional computer-based models, now there is a possibility in which land use managers and decision makers can evaluate the outcome of their decisions under different alternatives and at the minimum possible cost (Sakieh et al. 2014b). Inclusion of new methodologies such as spatial multi-criteria evaluation (SMCE) can further improve representation and modelling of urban growth patterns, which finally provide spatial d ecision support systems (SDSS) for better planning and management of urban areas (Dai et al. 2001; Jie et al. 2010; Youssef et al. 2011; Xu et al. 2011; Pourebrahim et al. 2011; Yuechen et al. 2011; Bagheri et al. 2013; Bathrellos et al. 2012; Sheng et al. 2012; Jeong et al. 2013, Sakieh et al. 2014b). Since 2000, there have been noticeable efforts for developing microsimulation LULC change methods such as cellular automata (CA) and agent-based models (Goodarzi et al.2016). CA-based models have a natural compatibility to raster geographic information system (GIS) and remote sensing (RS) data and are appropriate for detail resolution modeling and simulating dynamic spatial processes (Sullivan and Torrens 2000). In recent years, there have been developed some CA-based models such as SLEUTH (Slope, Landuse, Exclusion, Urban, Transportation, and Hillshade) (Clarke et al. 1997), CLUE-S (the Conversion of Land Use and its Effects at Small regional extent) (Verburg et al. 2002), iCity (Stevens et al. 2007) and DINAMICA (Soares-Filho et al. 2002). Compared with the above mentioned spatial models, the SLEUTH model requires fewer input layers and also offers various alternatives for future urban growth prediction (Norman et al. 2012). These characteristics of SLEUTH model have made it as one of the most-implemented and popular methods for land use simulation at different scales (e.g. regional, national, and even binational) (Maithani 2010; Norman et al. 2012; Chaudhuri and Clarke 2013). However, there are a number of limitations with SLEUTH. The first of these is that it is computationally expensive. It requires a high number of model runs using a multi-stage calibration process to narrow down the coefficient value for each input parameter (Goldstein 2003). The second drawback is related to non-linearity of the model for the combination of the coefficients. The Brute Force method[1] which is used in this paper for calibrating the SLEUTH can fall in local maxima and may miss the better coefficient set (Goldstein 2003, Jafarnejad et al. 2015). Urban expansion is a complicated event which mainly occurs because of increasing population and the need for more construction. Consequently, vast lands of valuable ecosystems such as agricultural lands, forests and pastures are consumed and converted to urban areas (Sakieh et al. 2014b). Therefore it is essential to understand and recognize this process in order to implement effective management and avoid reducing the aesthetic value of landscapes. To achieve this goal, areas with high aesthetic value should be recognized at the first step. In this regard, there are various approaches to determine the aesthetic impacts on different areas of the city including expert-based methods such as Multi-Criteria Evaluation (MCE), statistical approaches such Logistic Regression (LR) and Artificial Intelligence-based methods such as Multi-Layer Perceptron (MLP) Neural Networks (Riveira and Maseda 2006). These methods are repeatedly being implemented for suitability mapping of utilities such as urbanization (Pijanowski et al. 2002; Hu and Lo 2007; Pao 2008; Mahiny and Clarke 2012; Sakieh et al. 2015), environmental conservation (Singh and Kushwaha 2011; Mehri et al. 2014; Sakieh et al. 2015) and agricultural activities (Mozumder and Tripathi 2014; Bodaghabadi et al. 2015) but are less implemented for mapping aesthetic values. The MLP neural network approach has a remarkable ability to derive meaning from complicated or imprecise data and detect trends that are too complex for either humans or other computer techniques. MLP is a more accurate modelling method compared to the others (Saeidi and Salmanmahiny 2014) and has been used in this research. Accordingly, creating a suitable model to predict the landscape scenic value could provide a basis for explicit, quick and accurate integration of aesthetic evaluation into land-use planning efforts. Therefore, the main objective of this study is to evaluate the landscape aesthetic suitability and predict the spatial patterns of u rbanized lands in an effort to preserve landscapes of high aesthetic value. The following section describes how a directed modeling framework can be employed to introduce urban growth scenarios with regarding landscape aesthetic suitability, and finally to develop a city without considerable impact on its aesthetic suitability. Materials and methods Study area Gorgan is one of the cities in the northeast of Iran and the capital of Golestan province, located in 36 °, 49 ´ N and 54 °, 24 ´ E (Fig. 1). Gorgan has a mild and humid climate though summers are very hot and humid. The regional topography is very diverse and includes mountains, forests and grasslands, steppes and plains, desert and barren, rivers, wetlands and agricultural lands. Lush Hyrcanian temperate forests are located in the south, while flat areas with farmlands and rangelands make the main structure of the landscape in the north part of the case study. the region is also a destination for about two millions of tourists each year because of its aesthetic values and touristic environment, (Mehrnews 2015).Regarding the nomination of the area as a new province of Iran, rapid population growth has occurred that caused the increasing of built-up surfaces and consequently has made a series of conflicts between land developers and conservation agencies. These disagreements emphasise the importance of LULC planning in this area (Sakieh et al. 2016 b). Figure (1) Scenario based urban growth modelling In this research the SLEUTH cellular automata urban growth model was used to predict dynamics of Gorgan City developing under three different scenarios including historical, managed and aesthetically sound urban growth up to year 2030. The Historical Urban Growth (HUG) scenario assumes that the present pattern of urban growth will be maintained in the future. At the Managed Urban Growth (MUG) scenario, we tried to dictate an infill form of urban development with the aim of protecting the immediate environment of the city against urbanization. In the Aesthetically sound Urban Growth (AUG) scenario, an aesthetic suitability layer was used as the extra excluded layer in SLEUTH model to protect patches of high scenic value. Fig. 2 depicts a research flowchart of the study. The procedure for determining the aesthetic suitability map which was used as the excluded layer is explained in the following section. Figure (2) Aesthetic suitability mapping using MLP MLP is a feed forward artificial neural network model that maps different sets of input data toward a set of applicable and meaningful outputs (Rumelhart 1986). In a feed forward neural network, the information moves only in forward direction, from the input nodes, over the hidden nodes and to the output nodes. A node is considered to be a connection point that can receive, create, store or send data along distributed network routes (Ciresan et al. 2012). Exclusive of the input nodes, each node is a neuron or processing element with a nonlinear transfer function (Fig. 3). There are no cycles or loops in the network. MLP utilizes a supervised learning technique called back propagation for training the network (Rosenblatt et al. 1961; Rumelhart 1986). Learning process conducts in the perceptron by changing the connection weights after the processing of each part of data. Figure (3) Back propagation includes two main stages, forward and backward propagation, to achieve its modification of the neural status. During model training, each sample (e.g. a feature vector related to a single pixel) is entered into the input layer and the receiving node sums the weighted signals from all nodes to which it is connected in the former layer. In this regard, the input to a single node is weighted based on the following equation: Eq. (1) given: wij indicates the weight between node i and node j and o is the output from node i. The result from a given node is j is then computed from: Eq. (2) Function f is often a non-linear sigmoidal transformation that is used to weight the sum of inputs before it sends a signal to the next node. When the forward pass is finished, the performance of the resultant nodes are compared with their corresponding expected values. When a pattern is given to the network, each output node will differ from the preferred results, the difference is linked to the error in the network as well. This error is then propagated backward with weights for corresponding connections modified using a relation known as the delta rule: Eq. (3) Given: ÃŽÂ · is the learning rate of the model; ÃŽÂ ´ is the computed error; and ÃŽÂ ± is the momentum factor. This factor intends to avoid oscillation problems during the search for the minimum value on the error surface and is used to speed up the convergence procedure (Richards et al. 1999). The forward and backward passes continue until the network is properly trained for the characteristics of the targeted utility which in this research is the scenic beauty. Model training is aimed to retrieve the correct weights both for the connections between the input and hidden layers, and between the hidden and the output layer for the categorization of the unknown pixels. The input pattern is categorized to a class that possesses the node with the greatest activation level. The two training elements, automatic training and dynamic, can be employed to automatically execute the MLP. If one or both are used, the training procedure automatically restarts when the algorithm is highly oscillated or become trapped in a local minimum error surface. For each automatic restart of the model training procedure, one of the following items occurs to either learning rate or the sample used in the training procedure, or both. If only automatic training is selected and the first occurrence that the training procedure restarts, the starting weights are randomized. Through the next restarts, the weights are randomized and the learning rate is halved. If both automatic training and dynamic learning rate are chosen and the training restarts automatically, new samples are selected, the weights are randomized, and the learning rate splits in half. If only dynamic rate is chosen, and the learning rate is progressively lowered based on the number of iterations assigned and the start and end learning rates. For instance, if 10,000 iterations are specified and the model is configured with start rate of 0.1 and end rate of 0.001, it will divide 0.009 by 10,000 and lower the learning rate by the result at each iteration (Civco 1993). The acceptable error rate is related to the learning of the network and it is assessed based on the Root Mean Square (RMS error). Lower values of RMS error and higher values of total r2 shows the better fit of model. The MLP algorithm can produce both a hard and soft classifier. The hard classification output generates a discrete layer in which each cell belongs to a definitive category. Activation level maps, however, unlike the output of the hard classifier, are a series of images depicting a degree of membership for each pixel to each possible category. The output is set of images (one per class). Unlike the probability map, the sum of values for any location will not necessarily sum to 1. This is because the results from the neural network are acquired through standardizing the signal values in the range of 0-1 with the activation equation. Larger values imply a higher membership degree of the membership belonging to that corresponding category. The computation of the hard classification result is on the basis of the activation level maps. Data used for aesthetic suitability modelling through MLP method In the MLP analysis of the targeted area, multiple of factors were considered as input layers. Due to the characteristics of Gorgan City, a set of urban and natural criteria was used to model its landscape aesthetic values. These criteria were outlined during previous studies performed in our research area included gardens and agricultural lands (Othman et al, 2015; Mobargheie and Torbati 2014), tree type diversity, vegetation density (Aminzadeh et al, 2014; Weiqi et al, 2014; Chen et al, 2014; Kremer et al, 2016; Martina et al, 2016), topographic diversity (Arrowsmith 2001), buildings height and density (Weiqi et al. 2014; Chen et al. 2014), forest and urban parks (Ayad 2005; Weiqi et al. 2014), ancient sites and squares, refuges and boulevards (Bahrainy 1999; Aminzadeh et al. 2014). The GIS layers of gardens and agricultural lands, parks, squares, boulevards and refuges were obtained from the land use map maintained by the Gorgan municipality. The values of cells within these layers, together with ancient sites, were standardized using a user-defined function and based on the experts opinions. Whereas the relationship between the map value and fuzzy membership did not follow a certain function (e.g. linear, J-shaped or Sigmoidal), the user-defined function was the most applicable function and the user could reclass the map in the standard range. The ancient sites layer was obtained from Department of Cultural Heritage, Crafts and Tourism of Golestan province. The tree type for the study area consisted of six categories of tree communities (scale 1:25,000). Pattern analysis (with window size of 3 ÃÆ'- 3 pixels = 8100 m2) was applied as a filter to count the number of various classes inner a square vicinity of the central cell. Those pixels with three or more different categories in their vicinity were chosen to represent the diversity of a given location for its tree types. By using a Landsat TM image for the study area for 2012, vegetation density was calculated using the Normalized Difference Vegetation Index (NDVI) formula: Eq (4) NDVI is a widely used graphical indicator that can be used for detecting vegetative land cover. This index can be calculated based on red and near-infra-red (Xred, Xnir) spectral bands of Landsat image as equation 4 (McFeeters 1996). The layer was standardized using a symmetrical linear function having inflection values as: a=2879, b=5795, c=7595 and d=9545 (Fig. 4). Figure.(4) As the graph shows, by increasing the vegetation density (that is increasing NDVI values) to the point b, scenic value of landscape increases, then in a specific area remains constant (point c) then over increasing of the vegetation density due to restrictions in visibility detracts from scenic value of landscape. The building height and density layer was produced using the current status map of building density provided by the Gorgan municipality. Using a monotonically decreasing linear function in order to determine classification, this layer was standardized. The landscape aesthetic value was therefore decreased by increasing the building height and density, due to the viewshed being blocked. In the spatial input factors, a topographic diversity layer was also included. To determine this layer, a Digital Elevation Model (DEM) of the research area was acquired from National Cartographic Centre of Iran. A surface shape categorisation was performed on a DEM layer, which consisted of multiple topographic features: peak, flat, ravine, pit, ridge, saddle, slope hillside, saddle hillside, convex hillside, concave hillside and inflection hillside. The categorized layer was then analysed using a mode filter (window size of 3 ÃÆ'- 3 pixels) to specify a new score to the central cell based on most frequent values within the window. Then, a filter size of 7 ÃÆ'- 7 pixels was used to count the number of various categories within the neighbourhood of a central pixel to achieve the final map. This layer demonstrates the most diversified locations in terms of topographic features. The layer was standardized using a monotonically increasing linear function, whereby categories with highe r diversity got the higher score in the standardised value. Fig. 5 portrays factor layers used for aesthetic suitability mapping in this study. Figure (5) After preparing required inputs, the MLP model was configured according to the following data: Input variables: number of input variables = 8 (standardized factor maps) Input specifications: training points file = a raster map of 164 points, which retains the location of 164 attractive (99) and non-attractive (65) spots | maximum training pixels used = 200 | maximum testing pixels used = 200 Network topology: input layer nodes: 8 (equals to the number of input data) | output layer nodes = 1 (continuous surface of aesthetic suitability) | hidden layers =1 | hidden layer nodes = 16 Training parameters: the dynamic learning rate was employed | start learning rate = 0.01 | end learning rate = 0.001 | Momentum factor = 0. 5 | sigmoid constant a = 1.0 Stopping criteria: root mean square (RMS) error = 0.01 | iterations = 10,000 Output function = sigmoidal Once the model was trained, its performance was evaluated by plotting training RMS versus testing RMS during 10,000 model iterations. Lower values for testing error during iterations indicates proper training of the model, and therefore, it can be used to produce aesthetic suitability surface. Data processing for SLEUTH modeling For the SLEUTH modeling undertaken in this study, four urban extent years depicting the distribution of manmade features over time, two layers of the transportation network for two different time periods, one excluded aesthetics layer from urbanization, slope and hillshade layers were used. These input data layers were prepared by the integrated application of geographic information systems and remote sensing. As a model requirement, all binary urban/non-urban layers were stretched linearly and converted into a GIF format. The urban and transportation layers were created based on Landsat MSS and TM images for the years 1987, 1992, 2000 and 2010. These were then used to predict the expansion of Gorgan in 2030. Using a 30-m digital elevation model (DEM), slope percent and hillshade layers were derived. For the first and second modeled scenarios, hydrographical networks (rivers, dams and wetlands), dense forests and roads were used as excluded layers from urban growth. For the third sce nario, the aesthetic layer was added as an exclusory layer. These are shown in Fig. 6. Figure (6) Model calibration SLEUTH is a CA-based model in which five coefficients (diffusion, breed, spread, slope and road gravity) control four types of growth rules including new spreading center growth, spontaneous growth, edge growth and road gravity growth (Jantz et al. 2014). In addition, the straightforward calibration method applied by SLEUTH makes it adaptable to any particular geographic area over time (Clarke et al. 1996). In order to show the relative importance, each coefficient has a dimensionless value ranging between 0 (least important) to 100 (most important). During the calibration process, the form of urban expansion was detected via the four growth rules. The prediction of the model was based on the best range of refined coefficients derived from the calibration step. Table (1) shows the relationships between growth types and growth coefficients. Table (1) The main assumption of the SLEUTH model is based on the inherent pattern of urban dynamics whereby the city will witness the same growth in the future based on its historical trend in the past (Clarke et al. 1997). During the calibration process, the model seeks to derive the best range for each coefficient to enable better simulation based on local historical data (Silva and Clarke 2002). SLEUTH model benefits from a stochastic computation algorithm known as the Monte Carlo method. The model utilizes Monte Carlo iterations stochastically to generate multiple simulations of urban growth so parameters are standardized in a range between 0 and 100. These inputs reflect the relative contribution of each parameter to the dynamics of urban growth in the study area (Sakieh et al. 2014b). Finally, by using the best set of derived coefficients from three steps (coarse, fine and final) of calibration, the model was executed for the simulation of the historical data set. The number of Monte Ca rlo iterations support the robustness of final coefficients to run the prediction part of the model (Candau 2002; Jantz et al. 2004; Sakieh et al. 2014b). For the coarse calibration step, the default parameter values from the sample calibration scenario were employed. Five Monte Carlo iterations were specified for the coarse calibration phase, and growth parameters were set at their widest range of 0 25 100 as START, STEP and STOP values, respectively. A goodness of fit metric, known as the Optimal SLEUTH Metric (OSM) will provide the most robust results for SLEUTH calibration. The OSM is the product of the compare, population, edges, clusters, slope, X-mean, and Y-mean metrics (Dietzel and Clarke 2007). These seven metrics range between 0 and 1 and are multiplied together to calculate the OSM. The iterations are then sorted based on this metric and the best ranges of performing coefficients are chosen for the subsequent calibration stage. Applying the OSM metrics of the best perf orming iterations, the five multipliers were refined and reduced for use in the fine calibration step. The fine calibration step was executed through full resolution input layers in eight Monte Carlo iterations. Based on OSM values, the ranges for the five growth parameters in SLEUTH were further narrowed for the final phase of the calibration mode, which used 10 Monte Carlo iterations. Finally, the ranges for averaging values of the five coefficients of urban development in SLEUTH were set and the averaging was run for 100 Monte Carlo iterations. Model prediction After the calibration and performance validation of the model, the prediction step was executed using the entire data coverage and 100 Monte Carlo iterations. Prediction of the model was based on the initial seed year of the current urban pattern, using those refined values of coefficients. The output of the SLEUTH model is a continues surface in which each cell has a probability value to become an urbanized space in the future. This map is produced for every year including the first year (1987) to the last year (2030). There are three different methods used to simulate the expansion of urban area under different scenarios in the SLEUTH model. In the first method, best-à ¯Ã‚ ¬Ã‚ t multipliers derived from the calibration phases can be altered (Leao et al. 2004; Rafiee et al. 2009) and consequently the growth rules will change. In the second method, the excluded layer is weighted through a continuous range of resistance values against urbanization to show that even cells within the excluded layer have the potential to be urbanized under different probabilities (Oguz et al. 2007; Jantz et al. 2010; Mahiny and Clarke 2012, 2013). In the third method, the constraints of self-organization can be modià ¯Ã‚ ¬Ã‚ ed (Yang and Lo 2003; Xi et al. 2009). In this study, the first and the second methods were applied for two scenarios. The coefficients were altered in the MUG and AUG scenarios and an aesthetic suitability map of the study area was also used as an extra excluded layer in the AUG scenario. In th is case, the historical trend of the urban growth and two different scenarios were forecasted (Table 2). The adopted scenarios in this study used additional information regarding the study area and its development in the past. In addition, it was acknowledged that land use plans are mostly controlled by master plans for cities derived from regional land use planning (Makhdoum 2001; Dezhkam et al. 2014). The adopted scenarios were set up according to assumptions of uncontrolled and controlled growth, which allows decision makers to construct a quantitative comparative basis for evaluation of different growth alternatives. After calibration of the model, scenarios were introduced to model urban growth to the year 2030 by using two methods of parameter modification and the inclusion of the hydrology, dense forest and transportation exclusion layers in the first two scenarios as well as aesthetic exclusion layers in the third scenario. Table (2) The first scenario assumed that the present pattern of urban growth will be maintained in the future, and therefore, the originally derived parameters were used. The first exclusion layer including hydrographical networks, dense forests and roads were used for this. The prediction was conducted by means of the same resolution data and 100 Monte Carlos iterations. The second scenario used the same exclusion layer as the HUG scenario, but spread and breed coefficients were reduced (from 30 and 59 to 20 and 40 respectively) to dictate an infill urban development with the aim of protecting the immediate environment of the city against urbanization. The slope resistance coefficient was decreased to one-half of its original value, to reflect the current status of urbanization in Gorgan City which shows increasing development on steeper slopes. The third scenario (AUG) used the same coefficient values as those used for the MUG simulation, but the aesthetic suitability layer was used as an extra excluded layer to protect areas of high aesthetic value. The output from the SLEUTH model is a probability map, which shows the probability of each single pixel becoming urbanized. In order to produce a clear map that indicates future urbanized areas, a 90 % value was taken as a threshold to depict those cells which were considered most probable ones to become urbanized by 2030. [1] Brute Force refers to any of several problem-solving methods involving the evaluation of multiple possible answers (urban growth patterns) for model fitness.

Saturday, July 20, 2019

USA Patriot Act Essay -- American Government Rights Freedom Essays

USA Patriot Act The USA Patriot Act, actually named the Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism act, was created to deter and punish terrorist acts in the United State and around the world, to enhance law enforcement investigatory tools, and for other purposes. It was passed by President Bush in October of 2001. he USA Patriot Act gave the FBI and other agencies more power to investigate, created a Counterterrorism Fund, and made it illegal to aid and/or harbor terrorists. The Act was a good one to pass, and it has many good ideas and policies, but the Act contains several policies that are unconstitutional due to the rights of the First Amendment. The attacks on September 11th, 2001 were devastating. It was the first time since Pearl Harbor that the United States had been attacked on home soil. The threat to America was great, attorney general John Ashcroft responded by making the USA Patriot Act to help fight against the terrorist threat. In a time when fighting terrorism was the nation’s number one priority, the entire congress agreed on the Act, and passed it without any significant changes. The power given to the FBI and other agencies provided what was needed to capture enough terrorists to get the fight off of American land. The Patriot Act allowed the United States government the power and authority to look for terrorists in ways that was never done before. Evidence could be collected on any suspect and used in court, almost regardless of how it was required. It was almost like saying, â€Å"forget the rules, we need to protect ourselves†. At the time, the USA Patriot Act was a good thing, because the average American didn’t have to wo... ...ed. The notion that the FBI can ‘censor’ books by putting people on a watch list for reading them in a public domain is terrible, especially since the government is against censoring and banning books due to free speech rights. The idea that the government can stop a person’s expression because it ‘aids’ terrorism is also a horrible one. They might as well say that criticizing the government aids terrorism, and therefore should be punishable. The USA Patriot Act was an effective system when it was created. Without it, capturing the remaining terrorists in the United States would have been next to impossible. It was essential to solving that problem. Now that the fight against terrorism is off of American soil, the Act is no longer necessary in the fight. The USA Patriot Act should be repealed and declared unconstitutional. It violates the rights of every American.

Friday, July 19, 2019

Destiny, Fate, Free Will and Free Choice in Oedipus the King - A Puppet on a String :: Oedipus the King Oedipus Rex

Oedipus – A Puppet on a String Gather closer around the fire, children; tonight is the night I tell my tale, of queens and kings, huge she-monsters and evil gods. You all know that story, the story of Oedipus, the man doomed to kill his father and marry his mother, his life a twisted strand in the ball of the Fates. But do you know what happened afterwards? Oedipus drifted, feeling his way through Greece, filling his remaining four senses with the delicate scent of the olive tree, the rough touch of the rocky outcrops, the sound of waves crashing and the tangy bitter taste of wine. After a time he found himself in Crete, home of the famous Labyrinth of King Minos, although by this time both King Minos and the Minotaur had long since left this world. Minos' daughter, Ariadne, ruled the rocky isle. Oedipus winced at the sharp stones under his feet and followed the ever increasing babble of the city. Suddenly he felt a sharp stone sting his side. "Ja, beggar, we don't need any more of the likes of you around here!" Oedipus cringed. "Please sir, forgive me," the once proud king murmured. He moved towards the palace where he hoped he would receive a more hospitable welcome. A wealth of scents greeted Oedipus' nose as he ambled down an alleyway: the tang of citrus, the bitter scent of unwashed people and the crisp smell of linen drying. As he approached the palace gates, Oedipus began to wonder how he would gain entrance. In answer to his thoughts, a male voice said, "You'll never get in here, you filthy peasant. Best go beg for a crust amongst the other sewer rats." The swish of linen followed, a scent of delicate perfume, and a female voice saying, "Antikretes, shame on you! Be hospitable. Why, this could be Zeus Himself in disguise." "If that's Zeus then I'm Aphrodite's girdle." "That's enough. I don't usually do this but there's something different about him. Show him to a room." "Yes, Majesty." "Oh, Your Royal Majesty," began Oedipus, suddenly realising whom he was talking to, but he was already being led away. That night Oedipus had a strange dream. He could see again, and he was sitting on a rocky outcrop overlooking the sea. Beside him was a beautiful woman with strange but wonderful eyes.

The Importance of Non-conformity and Independent Beliefs in Ralph Waldo

In Ralph Waldo Emerson’s â€Å"Self-Reliance,† Emerson calls for each person in society to be wholly true to themselves. He claims that it is most rewarding to the individual and the society for people to believe in one’s own thoughts and not in the thoughts of others. Emerson believes that conformity will ultimately lead to an individual’s demise because by living for others, people are not being true to themselves. Therefore in order to have a well-formed society, citizens should focus inward and have confidence in their own ideas before beginning to look towards other individuals; moreover, Emerson calls individuals not only in â€Å"Self-Reliance,† but also in numerous essays to act independently from conformity and to live for themselves. Ralph Waldo Emerson’s main theme in â€Å"Self-Reliance† places emphasis on the individual’s ideas and not the ideas of others. Emerson strongly believes that â€Å"imitation is suicide.† To Emerson, if a person possesses an opinion, the person should voice that opinion immediately without doubt. As Emerson states, â€Å"History, and the state of the world at any one time is directly dependent on the intellectual classification then existing in the minds of men. Beware when God lets loose a great thinker on this planet. Then all things are at risk. The very hopes of man, the thoughts of his heart, the religion of nations, the manner and morals of mankind are all at the mercy of a new generalization.† (Dewey 408). He calls for people to have confidence in themselves and to cease living by the world’s universal ideas. He places great importance on the fact that a person should always be true to himself or herself. He believes that if people begin living according to everyone else’s wishes, they will ... .../p41728_index.html> Yannella, Donald. "Chapter 3: Self-Evolving Circle." Ralph Waldo Emerson. Donald Yannella. Boston: Twayne, 1982. Twayne's United States Authors Series 414. Literature Resources from Gale. Web. 19 Apr. 2010. Works Consulted deTocqueville, Alexis. Democracy in America. New York: Harper Perennial, 1988. 537. American Political Science Assoc. Web. 19 Apr. 2010. Emerson, Ralph W. "The American Scholar." Vol. 7. The Norton Anthology of American Literature. Ed. Julia Reidhead. 7th ed. N.p.: W.W. Norton & Company, Inc., 2008. 7 vols. 520-32. Print. "Overview: â€Å"Self-Reliance†." Literature and Its Times: Profiles of 300 Notable Literary Works and the Historical Events that Influenced Them. Joyce Moss and George Wilson. Vol. 2: Civil Wars to Frontier Societies (1800-1880s). Detroit: Gale, 1997. Literature Resources from Gale. Web. 19 Apr. 2010

Thursday, July 18, 2019

Perfect Competition vs Monopoly

M&S (perfect competition) Vs Thames Water (monopoly) At one end is perfect competition where there are very many firms competing against each other. Every firm is so tiny in relation to the entire trade that has no power to manipulate price. It is a ‘price taker’. At the other end is monopoly, where there is just a single firm in the industry, and for this reason no competition from inside the industry. Perfect competition e. g. Marks & Spencer, they have many competitors such as, Asda, Next and Tesco. They productively have over 600 UK stores, in addition expanding international business.They employ over 75,000 people in the UK and abroad. On the whole, their clothing and homeware sales account for 49% of their business. The other 51% of business is in food, where they put on the market everything from fresh produce and groceries, to partly-prepared meals and ready meals. Nevertheless on the other end, there is a Monopoly e. g. Thames Water, which is UK’s largest water and wastewater, services company. They play a very important role in providing everyday 2,600 million litres of tap water to 8. 5 million customers across London and the Thames Valley.They also get rid of and take care of 2,800 million litres of sewage for an area covering 13. 5 million customers. The main strong point of National Grid is that there are no competitors. Having many firms rivalling not in favour of each other e. g. Marks & Spencer, it is then good for consumers. The hypothesis of perfect competition demonstrates an intense form of free enterprise. Within it, firms are utterly issue to market forces. They have no power at all to influence the price of the product. The price they face is dogged by the interaction of demand and supply in the entire market.M&S are ‘price takers’. There are numerous firms in the industry that each one manufactures an unimportantly small quantity of entire industry supply, and consequently has no power at all to change t he price of the invention. For M&S and their other opponents, there is full liberty of admission into the industry for fresh firms. Active firms are not capable to discontinue new firms setting up in business. New firms will find it relatively straightforward to enter markets if they feel there is irregular profits to be made.The entries of new firms make available competition and guarantee prices are kept low in the long-run. Manufacturers and customers have ideal awareness of the market. That is, manufacturers are completely alert of prices, costs and market chances. Customers are entirely aware of price, excellence and accessibility of the product. Thames Water has sustained their monopoly situation, by including obstacles (barriers) to the entry of new firms. Even if a market could support more than one firm, a new participant is unlikely to be able to start up on a very huge scale.Accordingly the Thames Water who is already experiencing economies of scale can charge a price und er the cost of the new participant and force it out of business. If, nevertheless, the new participant is a firm previously established in another industry, it may be capable to endure this competition. Since there is, by classification, only one firm in the industry, the firm’s demand curve is also the industry demand curve. In contrast with other market organisations, demand under Thames Water tends to be less flexible.Thames Water can lift its price and consumers have no substitute firm to turn inside the industry. They moreover pay the superior price, or go without the product altogether. Dissimilar to M&S, Thames Water is consequently a ‘price maker’. It can make a decision to what price to alter. On the other hand, it is still forced by its demand curve. An increase in price will decrease the amount demanded. As with firms in other market structures, Thames Water will make the most of profit where MR (rate price) = MC (Marginal Cost).Given that there are ba rriers to the entry of new firms, Thames Water’s supernormal profits will not be competed away in the lengthy run. The merely dissimilarity, therefore, among short-run and long-run equilibrium is that in the long-run the firm will manufacture where MR = long-run MC. Both M&S and Thames Water face different types of market surroundings. Thames Water will generate a quite diverse output and at a fairly diverse price from M&S type of industry. M&S complete continued existence in the long run makes use of the most well-organized and fficient known technique, and develops new techniques anywhere possible. For example, Plan A. Plan A is Marks & Spencer’s five-year, 100-point ‘eco' plan to tackle some of the biggest challenges facing their business and the world. It will see them working with their customers and suppliers to combat climate change, reduce waste, safeguard natural resources, trade ethically and build a healthier nation. Altogether, they have cut down on f ood carrier bags by 80% – helping to reduce plastic waste. This helped raise half a million pounds for charity.Even though, Thames Water, protected by barriers to entry, be able to still create big profits even if it is not using the most efficient system. It has less motivation, therefore, to be efficient. For this motive, costs may be privileged under Thames Water. On the other hand, Thames Water may be bright to achieve considerable economies of scale due to larger plant, centralised management and the prevention of pointless repetition. Thames Water eradicates the want for numerous sets of rival water mains under each street.If this consequence in an MC curves significantly below that of the same industry under M&S, Thames Water can yet manufacture a higher output at a lower price. An additional reason why Thames Water may well function with lower costs is that it can make use of part of its supernormal profits for investigate and progress and investment. It possibly will not contain the same motivation to develop into efficient as M&S which is fighting for continued existence, but it may contain a much superior skill to become efficient than has the small firm with incomplete finances.Even if Thames Water faces no competition in the supplies market, it may face a substitute form of competition in financial markets. Thames Water, with potentially low costs, which at present runs inefficiently, is likely to be subject to a takeover tender from an additional company. This competition for commercial manage, as it is the struggle for the control of companies during takeovers, may as a result, force Thames Water to be efficient in order to avoid being taken over. Overall, there are two tremendous forms of market structure: monopoly (Thames Water) and, its opposite, perfect competition (Marks & Spencer).M&S is characterised by many buyers and sellers, many products that similar in nature and, as a result, many substitutes. Meaning there are few, if any, b arriers to entry for new companies, and prices are determined by supply and demand. Consequently, M&S are subject to the price of a good, the consumers can just turn to the firm decide to increase its selling price of a good; the consumers can just turn to the nearest competitor for a better price, causing any firm that increases its prices to lose market share and profits.Whereas the more constable the market, the more will Thames Water be forced to take action on like a firm under M&S. If, therefore, Thames Water operates in a perfectly contestable market, it might bring the finest time for the consumer. Not simply will it be capable to accomplish low costs through economies of scale, but also the possible competition will keep profits and as a result prices down. Bibliography McAleese, Dermot (2004).Economics for business: competition, macro-stability, and globalisation Parkin, Michael (1939). Economics Peter J. Buckley, Jonathan Michie (1996) Firms, Organizations and Contracts a Reader in Industrial Organization: A Reader in Industrial Organization Hunter, Alex (1969). Monopoly and competition: selected readings www. tutor2u. net www. econ. rochester. edu/eco108/ch14/micro14/sld063. htm www. bized. co. uk www. ft. com Sloman, John (2007). Essential of Economics Journal of Business & Economic Studies, 09/01/1997 to present