Friday, November 15, 2019
Impact of Bisphenol A in Bottles on Childrenââ¬â¢s health
Impact of Bisphenol A in Bottles on Childrenââ¬â¢s health INTRODUCTION The history of Bisphenol-A is a long story, and the development of this substance hasà gathered benefits and drawbacks. In fact, BPA brings several benefits for lifeââ¬â¢s people. It isà used in the production of epoxy resins and polycarbonate plastics. The polycarbonate plastics may be encountered in many products including dental equipment, eyewear, especially baby bottles, while epoxy resins are frequently used as inner liner of metal food and drink containers to prevent corrosion. However, historical development of Bisphenol A demonstrates that the drawbacks have a much negative impact than benefits. Bisphenol A was discovered in 1891 by Russian chemist Aleksandr Dianin. In the 1930s, scientists discovered that BPA is an artificial estrogen and it has been used widely over the world since 1950 (The Washington Post, ââ¬Å"117 Years of BPA,â⬠April 27, 2008). Recently, the number and diversity in the study of the effects of bisphenol A has grown significantly over the past few years. In 2009, Health Canada studies showed that the majority of canned soft drinks contain bisphenol A (Survey of Bisphenol A in Canned Drink Products,13 March2009). Moreover, in 2010, the University of Texas in USA showed that almost plastic packaging and canned milk usually contain high the percentage of BPA[Journalists Resource.org]. In addition, study in the US showed that consumption of soda, school lunches, and meals prepared outside the home make a significant contribution t o the increasing BPA in the urine [Lakind JS, Naiman DQ (2010)]. Therefore, the wide use of BPA in plastic fabrication and epoxy resins has a negative impact on health people, which interferes with the endocrine system in animals and humans and contribute to adversely affect childrenââ¬â¢s health. Furthermore, plastic containers, especially baby bottles, become more popular with consumers and retailers as they are cheap, functional and hygienic way to transport products. This leads to the fact that many children will be easily caught disease as well as influence the development of children. This essay will discuss about concentrations of BPA in urine which can cause danger for children ages from 6 to 17 as well as the impact of Bisphenol A in bottles on children, such as early puberty, obesity and lower IQ (Csaba Leranth, 2013), and the positive solutions to minimize problems such as a ban, use plastic bottles as less as possible. SITUATION The discovery of Bisphenol A in the 20 century was just an accident. Although Aleksandr Dianin, Russian chemist, discovered Biisphenol A in 1891, until the year 1900, Dr. Feldman made some important discoveries of this. In 1990, Dr. Feldman and his colleagues have carried out a research into estrogen, and they found out strange substance that looked like an estrogen. In 1992, strange substance was found in experimentation related to plastic flask and was not present in glass flask. Dr. Feldman identified this substance as Bisphenol A. According to International Union of Pure and Applied Chemistry Nomenclature (IUPAC), Bisphenol A (BPA) or 4,4-dihydroxy-2,2-diphenylpropane is a carbon-based synthetic compound with the chemical formula C15H16O2 and molecular weight 228.28634 g/mol (Bisphenol A, 2005). This substance was used in the manufacture of polycarbonate plastic, which typically present in bottles. Furthermore Dr. Feldman said that Bisphenol A is a major health risk. Nevertheless, the negative effect of Bisphenol A that Dr. Feldman research do not help inhibit the increasing manufacture of bottles, which contain high-level BPA, and the provided pie chart below illustrates the figure for baby bottles purchase worldwide. Sources: Icon Group ââ¬Å"The 2009-2014 World Outlook for Baby Bottlesâ⬠- Philip M. Parker, PhD/SGD At first glance, the manufacture of bottles in North America experienced the highest portion while Indian gained the least attention in this field. It is noticeable that 24 was the percentage that mass-produce bottles in North America, compared to 22% of Europe and 14% of Russia, Africa and Middle East. However India and Latin America just put the modest manufacture of bottles, which was 5% and 8% respectively. In 2008, there were 22 billion food cans and 100 billion cans for soft drinks, which were produced with BPA. (Hemi Weingarten, 2009). With the innumerable bottles produced each year, people, and children in particularly, are easily expose to Bisphenol a contained in bottles. The number of children whose exposure to BPA had increased significantly since BPA was used widely from 1950. Furthermore, Karin B. Michels, associate professor of epidemiology at HSPH and Harvard Medical School said that drinking water from polycarbonate bottles in just one week went up urinary BPA levels more than two third, and if people heat those bottles, the levels would be higher (Karin B, 2015). The line graph below demonstrates the concentrations in urine samples in children. (Source: http://www.epa.gov/ace/biomonitoring/bpa.html) To find out whether or not children expose to Bisphenol A, many scientists research in urine samples from all age groups, including children and adults. This data which show concentrations in urine samples are obtained from individual survey participants conducted by National Center for Health Statistics and National Center for Environmental Health, National Health and Nutrition Examination Survey. The figure for the Median and 95th percentile concentrations in urine decreased significantly. Between 2003 and 2004, the number of the median concentration of BPA in urine of children ages 6 to 17 years is 4 à µg/L in comparison with 16 à µg/L of 95th percentile concentration in urine. It is noticeable that the figure for 95th percentile concentrations in urine reached a peak at 17 à µg/L in 2005-2006 while 2009 was the year that the Median experience the lowest percentage, about 2 à µg/L. These changes are extremely important in reducing the rate children whose exposure to Bisphenol A. PROBLEMS Although the current trend in using Bisphebol A had declined significantly, BPA pose risk to human health. Bishenol A was researched in several scientific reports of the independent research group over the world. According to a scenario analysis of 12 experts in the National Toxicology Program NTP, BPA makes the reproductive system and the brain of newborn animals develop abnormally. A small dose of BPA can cause negative effects on young children. Some studies even suggest that young children are easily affected by Bisphenol A because the young body is still developing. Therefore, the immune system cannot protect and remove the dangerous chemical, especially Bisphenol A. Generally, although eating too much or lack of exercise are the important factors that lead to obese in teenager, said Dr. De-Kun Li, Bisphenol A might also contribute to the increasing in the obesity rate. Li and his colleagues studied 1326 children aging from 9 to 12, and measured BPA levels in their urine. (Corvese, 2013). The girls who have higher BPA levels were associated with the double risk of obesity. Researchers explained that Bisphenol A is referred to as endocrine disrupting chemicals, which interfere with elimination of natural hormones in the body. These natural hormones are responsible for reproductive development, fertility and maintenance of homeostasis. Therefore, when the concentration of BPA are high in girl, Bisphenol A which acts like estrogen make a significant contribution to the early puberty and cause weight gain. With the weakened immune system and the consequences of obesity caused by Bisphenol A, young people are more likely suffer diseases such as: high cholesterol, high blood pressure and diabetes (Ogden CL, Carroll MD, Kit BK, Flegal KM, 2011). People who become obese as early as age are more likely suffer cancer in adults including cancer of the breast, colon, kidney, pancreas, gall bladder, and prostate. (A Cancer Journal for Clinicians2006). In 2010, a report from The Presidentââ¬â¢s cancer Panel identified more than 130 studies that have linked BPA to obesity, breast cancer and other disorder problems (World-wire.com, 2010). Besides, there are many serious consequences of BPA that are proved by many scientists, such as: brain and behavior problems, heart problems and low IQ (Empen, 2013). If these diseases are not treated effectively, they have a negative impact on the development of children in the future. Therefore, eliminating Bisphenol A from the body can help young children h ave an excellent health without affecting by prevalence diseases in modern life SOLUTIONS Recognizing the harmful effects of Bisphenol A and considering it as a national issue, scientists and governments take this problem in serious concern. From a scientific perspective, developing alternative to Bisphenol A is a major breakthrough in eliminating BPA from the body as well as in cancer research. Furthermore, under the pressure of people who worry about the BPAââ¬â¢s adverse affect on human health, researchers over the world put more effort in finding the substitute for Bisphenol A. In fact, many manufactures in United States show that it is possible to replace BPA not only in baby bottles, but also in food cans and drinking bottles. They developed a chemical which originate in sugar, and this substance allow us to create a family of isosorbide-based epoxy resins that is capable of standing in for Bisphenol A, said Professor Michael Jaffe (Harrington, 2010). Besides, there are many possible substitutes to bottles and containers containing BPA, such as stainless steel, Tritan Copolyester, Polypropylene (PP), Polyethylene Terephthalate (PET), Polyamide , Polyethersulfone (PES) and oleoresin [Oregon Environmental Council, 2013; Det ÃËkologiske Rà ¥d, 2013], all of which are environmentally friendly alternatives. In 2008, Nalgene said that they produce baby bottles with these substitutes, and it is obvious that these materials do not contain Bisphenol A. Apart from practical concerns mentioned above, it would be unfair without considering the contributing factor of government in wiping off Bisphenol A from baby bottles. Canada becomes the first government in the world to carry out the negative effects of Bisphenol A. In October 2010, they imposed limitations on using bottles which contain BPA. Apparently, these ban helped decrease the rate of using bottles. Not only does Canadaââ¬â¢s government ban using Bisphenol A, but also other countries legislate on the reduction of baby bottles. Washington is a good illustration for campaigning to act against BPA. ââ¬Å"Bans BPA from childrenââ¬â¢s food and beverage containers (other than metal cans) and all reusable water bottles.(Adopted in 2010)â⬠according to Washington State Legislature. Besides, governments force manufactures to label each baby bottles with the contents and statistics of Bisphenol A. Hence government can manage the concentration of BPA in bottles. In addition, thanks to attaching label, individual can easily check the bottles whether or not contain BPA. If the products say ââ¬Å"phthalate freeâ⬠or ââ¬Å"BPA-freeâ⬠, consumers can purchase these products without worrying the harmful effect of Bisphenol A (Niehs.nih.gov, 2015). EVALUATION As we know, nothing interesting is ever completely one-sided, these solutions that wipe Bisphenol A of baby bottles also have the pros and cons. It seems to me that the potential consequences of rules and regulations are significant than the possible dangers. On the one hand, imposing constraints have a negative effect on the quality of products. Bisphenol A is a suitable chemical for hardening polycarbonate plastics. If government ban using Bisphenol A in baby bottles, the quality of these bottles will degrade. Furthermore, the substitute is not as good as Bisphenol A. For instance, acrylics, which stand in for Bisphenol A, are used in producing bottles. However, this substance is more brittle than Bisphenol A, and it is obvious that the bottles are easily broken. On the other hand, I would argue that these drawbacks are outweighed by the benefits. Removing Bisphenol A will be of benefit to economy. In 2008, there were 12,404 cases of childhood obesity and 33,863 cases of coronary heart diseases that associated with Bisphenol A. By eliminating this substance from the body, we can reduce child health care expenditure, which was about $2.98billion. Specifically, the cost of BPA- attributable childhood obesity and coronary heart were approximately 1.5 billion and 935 million respectively (Trasande, 2014). . Furthermore, if we use the substitute for Bisphenol A, it costs a fortune. Some report suggest that oleoresin, which stand in for Bisphenol A, can cost 2.2 cent more than BPA in the lining of aluminum cans. With 100 billion these cans produced each year, the cost of substitute for BPA would be 2.2 billions [LaytonL, 2010]. CONCLUSION The development of Bisphenol A has gathered advantages and disadvantages. Although BPA is the crucial factor in manufacturing baby bottles, it was inevitable that there would be impact of Bisphenol A in baby bottles on children health. The negative effects associate with prevalent diseases in modern life such as early puberty and obesity. Hence, governments and scientists take into action as soon as possible to preclude child health expenditures, which are closely related to large economic burden. In the future, it is necessary to test potential substitutes in order to prevent the use of replacement Bisphenol A that may lead the same or worse health consequences. REFERENCES Calafat A.M., Ye X., Wong L.Y., Reidy J.A., and Needham L.L., ââ¬Å"Exposure of the U.S. Population to Bisphenol A and 4-tertiary-octylphenol: 2003-2004,â⬠Environ Health Perspect, 2008 Jan;116(1):39-44 Bisphenol A. (2005). [online] Available at: http://pubchem.ncbi.nlm.nih.gov/compound/Bisphenol_A [Accessed 2 Apr. 2015]. Hc-sc.gc.ca, (2015). ARCHIVED Survey of Bisphenol A in Canned Drink Products [Health Canada, 2009]. [online] Available at: http://www.hc-sc.gc.ca/fn-an/securit/packag-emball/bpa/bpa_survey-enquete-can-eng.php [Accessed 7 Apr. 2015]. Karin B, M. (2015). BPA, chemical used to make plastics, found to leach from polycarbonate drinking bottles Into humans | News | Harvard T.H. Chan School of Public Health. [online] Hsph.harvard.edu. Available at: http://www.hsph.harvard.edu/news/press-releases/bpa-chemical-plastics-leach-polycarbonate-drinking-bottles-humans/ [Accessed 11 Apr. 2015]. Corvese, G. (2013). BPA linked to obesity in young girls. [online] Thechart.blogs.cnn.com. Available at: http://thechart.blogs.cnn.com/2013/06/12/bpa-linked-to-obesity-in-young-girls/ [Accessed 11 Apr. 2015]. Ogden CL, Carroll MD, Kit BK, Flegal KM. Prevalence of childhood and adult obesity in the United States, 2011-2012.Journal of the American Medical Association2014;311(8):806-814. Harrington, R. (2010). Sugar-derived epoxy lining could replace bisphenol A. [online] FoodProductionDaily.com. Available at: http://www.foodproductiondaily.com/Packaging/Sugar-derived-epoxy-lining-could-replace-bisphenol-A [Accessed 11 Apr. 2015]. Empen, K. (2013). The Facts About Bisphenol A, BPA. [online] Webmd.com. Available at: http://www.webmd.com/children/environmental-exposure-head2toe/bpa [Accessed 11 Apr. 2015]. Niehs.nih.gov, (2015). Bisphenol A (BPA). [online] Available at: https://www.niehs.nih.gov/health/topics/agents/sya-bpa/ [Accessed 11 Apr. 2015]. Trasande, L. (2014). Further Limiting Bisphenol A In Food Uses Could Provide Health And Economic Benefits. Health Affairs, 33(2), pp.316-323. Fda.gov, (2010). Bisphenol A (BPA): Use in Food Contact Application. [online] Available at: http://www.fda.gov/NewsEvents/PublicHealthFocus/ucm064437.htm [Accessed 11 Apr. 2015]. Vom Saal et al., ââ¬Å"Chapel Hill Bisphenol A Expert Panel Consensus Statement: Integration of Mechanisms, Effects in Animals and Potential to Impact Human Health at Current Levels of Exposure,â⬠Reproductive Toxicology, 2008 August-September, pp. 131-138. 1 Title: Impact of Bisphenol A in Bottles on Childrenââ¬â¢s health
Wednesday, November 13, 2019
A Deconstructionist Critique of Chopinââ¬â¢s The Awakening Essay -- Chopin
A Deconstructionist Critique of Chopinââ¬â¢s The Awakening The multiplicity of meanings and (re)interpretations informing critical studies of The Awakening reveal a novel ripe for deconstructionist critique. Just as Chopin evokes an image of the sea as symbolic of Ednaââ¬â¢s shifting consciousness (ââ¬Å"never ceasing, whispering, clamoring, murmuring, inviting the soul to wander in abysses of solitude,â⬠138), likewise the deconstructionist reading of a text emphasizes fluidity over structure: ââ¬Å"A text consists of words inscribed in and inextricable from the myriad discourses that inform it; from the point of view of deconstruction, the boundaries between any given text and that larger text we call language are always shifting,â⬠(297). From this perspective, the reader/critic opens the doors of interpretation instead of narrowing their focus to any singular, exclusionary reading, and exposes the deconstruction at work within the text itself. Whether defined as feminist martyr, metaphorical lesbian, the triumphant image of social transcendence or a broken bird ââ¬Å"beating the air above . . . circlin...
Sunday, November 10, 2019
Birmingham Airport
Like any other airport, Birmingham International has enough competitors that want their own share of its market. The theory is the bigger the better, and better = more profit. â⬠¦ This essay has been marked by one of our great teachers. You can â⬠¦ www. markedbyteachers. com/gcse/business-studies/birminghamâ⬠¦ ââ¬â Birmingham-Shuttlesworth International Airport at Sunset: Feb. 6, 2013 | al. com 1 of 8 Link to this photo | Comments about this photo essay The downtown skyline is shown as a business jet takes off at sunset from the Birmingham-Shuttlesworth International Airport in Birmingham, Ala. Wednesday, Feb. 6, 2013. (Mark â⬠¦ photos. al. com/alcom_photo_essay/2013/02/birmingham-shuttlesworthâ⬠¦ ââ¬â GCSE Birmingham International Airport ââ¬â Location Coursework, Essay and Homework Help from Marked By Teachers. com â⬠¦ Business Studies Case Studies Birmingham International Airport ââ¬â Location â⬠¦ This essay has been marked by one of our great teachers. 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Friday, November 8, 2019
Transformational vs Transactional Leadership Essays
Transformational vs Transactional Leadership Essays Transformational vs Transactional Leadership Paper Transformational vs Transactional Leadership Paper Leadership Styles, High-Quality Leader-Follower (LMX) Relationships and Job Performance The current globalized economic environment is becoming increasingly dynamic and competitive forcing organizations to improve their business practices to overcome greater challenges with more flexibility, efficiency and innovation in products and internal processes (Walumbwa et al. 2005, p. 235). Certainly, there is fundamental evidence of the positive association of leadership style and the influence on followerââ¬â¢s behaviour as a consistent way to improve job performance and organizational outcomes (Vaccaro et al. 2010). The aim of this paper is to demonstrate the impact of transformational and transactional leadership styles on leader member exchange relationships, job performance and job satisfaction. By using theories such Weberââ¬â¢s conceptualization of charismatic leadership, Burnsââ¬â¢ transactional leadership and Bassââ¬â¢ Four Iââ¬â¢s of transformational leadership, this paper acknowledge the superiority of transformational over transactional leadership style in developing high-quality leader-follower (LMX) relationships, increasing followersââ¬â¢ job performance and Job satisfaction. Recalling previous studies which asserted the dependence of leadership effectiveness on culture and organizational size (Paul et al. 001), it seems clear that transformational leadership is a more suitable leadership style for small, large and complex companies across cultures facing the challenges of globalization of markets. The superiority of transformational leadership style in building high-quality leader-follower (LMX) relationships is given to the practice of one or more of the Four Iââ¬â¢s leadership behaviour. Firstly, Idealized influence through a charismatic behavi our will illustrate the positive influence on followers and their performance. It is followed by the ability to motivate team work and the achievement of general goals that produce personal satisfaction and commitment with the company (inspirational motivation). Furthermore, intellectual stimulation will certainly demonstrate how innovation and creativeness is promoted and their impact on organizational results. Finally, individualized consideration in hand with LMX theory will provide an example of the undoubted benefits of dyadic relationships in ââ¬Ëin-groupââ¬â¢ such greater loyalty and commitment. Leadership styles, high-quality leader-follower (LMX) relationships and Job performance. Focusing in the work of Burns (1978) and Bass (1985) on leadership behaviours, transformational and transactional leadership have been the objective of various research in order to capture the extent to which leaders influence subordinates by involving them in the organizationââ¬â¢s goals, or by specifying the rewards that will follow the accomplishment of those goals (Rubin et al. 2005; Yammarino et al. 1997) According to Podsakoff et al. 1990) a fundamental characteristic of transformational leadership behaviour is the ability to create a compelling vision for the organization, providing an appropriate model consistent with that vision, stimulating the acceptance of group goals, expecting high performance, providing individualized support and intellectual stimulation. In contrast, transactional leadership is primarily concern with gaining compliance from subordinates by using a contingent re ward dimension or a passive form of managing by exception. The leader specifies what is expected from organizational members and the subsequent reward for its accomplishment (Bass and Avolio 1990). According to LMX theory, a high-quality leader-follower (LMX) relationship, usually associated with dyads in the ââ¬Ëin-groupsââ¬â¢ of the organization, emphasizes in fundamental levels of loyalty, commitment, respect, affection, mutual trust and the possibility of mutual linking between leaders and followers (House et al. 1993). Transformational rather than transactional leadership is more likely to achieve this superior level in the follower-leader relationship by developing one or more of the Four Iââ¬â¢s; Idealized influence, inspirational motivation, intellectual stimulation and individualized consideration (Bass, BM and Avolio, BJ (eds. ) 1994). Idealized influence A transformational leader acts in a way that becomes a role model or inspirational image for his/her followers (Zhang, X, Cao, Q and Tjosvold, D 2010) usually attributed to his/her charismatic approach. Certainly, charisma in meant to be a requirement for transformational leadership. According to Weber (1947) a charismatic leadership can inspire and motivate people to do more than originally intended. What is more, they can influence followers by arousing strong emotions in support of the organizational vision, creating a leader-follower relationship based on a common value system between leader, follower and organization (Paul et al. 2001). Towler (2003) demonstrated that workers who received a charismatic-training performed better on their knowledge test and were more satisfied with the task. Unlike, transactional leadership emphasizes in the transaction that takes place with followers based on explicit discussion of the rewards they will receive if they fulfil the requirements. As a consequence, the relationship with is limited to the leaderââ¬â¢s ability to control the outcomes desired by followers. However, as Dorfman et al. (1999) argued, charismatic behaviour can have a negative implication on societies with a history of autocratic and despotic leaders. Inspirational motivation Undoubtedly, the contingent transactional reinforcement system motivates followers to perform in such adequate way in order to obtain the reward. However, through this system, followersââ¬â¢ job performance, as well as commitment, is strongly limited to fulfil the requirements of the contract in a self-satisfying attitude (Avolio,BJ, Bass, BM and Jung, DI 1999) rather than a commitment with the leader and organizational vision he/she has established. Contrary, transformational leaders promote an organizational citizenship behaviour in which team-supporting behaviours augment followersââ¬â¢ identification with group values. The leader motivates them to transcend from a self-concept to be committed with cooperative team goals. Followers find themself intrinsically motivated to fulfil a collective vision without expecting immediate personal and tangible gains (Wang et al. 2005). Intellectual stimulation Transformational leaders stimulate employeesââ¬â¢ effort to be innovative and creative by questioning assumption, reframing problems and approaching situations in different ways (Vaccaro et al. 2010, p. 2). On the other hand, as Podsakoff et al, (1990) exposed, transactional leadership consist in two dimensions; Contingent reward systems, which emphasizes the institution of clear and precise agreements, and management by exception that promotes highly leadership involvement and intervention in order to monitor and ectify any divergence form standards. Amibile (1998) claims that both dimensions inhibit creativity and discourage the initiative to address new ways to facing the work. Although, currently research fail to demonstrate a universal leadership phenomena (Walumbwa et al. 2005, p. 235), transformational leadership, by using intellectual stimulation behaviours, exhibit a cross-cultural benefit on commitment, innovation and job performance, all of them being characteristics of high-quality leader-follower (LMX) relationship. Avolio, Zhu, Koh, and Puja (2004), by gathering data from staff nurses in a large public hospital in Singapore, found a positive association between transformational leadership and organizational commitment. Likewise, Geyer and Steyrer (1998), as a result of a research in Australian banks, reported that transformational leadership had positive effects on employeesââ¬â¢ level of effort and task performance. Individual consideration A transactional leader properly identifies employeesââ¬â¢ needs in order to make the accurate motivational transactions; as a result, both parts expectations are met and job satisfactions is improved. However the exchange is usually limited to economic or tangible benefits and does not promote leader-follower relationships. In contrast, a transformational leader pays special attention to followerââ¬â¢s individual needs in a widely range, such achievement and growth, by acting as a coach or mentor. The leader demonstrate acceptance for individual differences, promote two-way exchange communication and sees the individual as a person rather than as just an employee (Bass, BM and Avolio, BJ (eds. 1994). In this extent, transformational leader promotes the creation of dyadic relationships with ââ¬Ëin-groupââ¬â¢ members which usually have a high-quality relationship with the leader and are expected to be more loyal to the leader, and perform in a greater extent as an exchange for intangible benefits like career development, participation in decision making, and access to information, between others (Vaccaro et al. 2010, p. 2). According to Deluga (1992), individualized consideration and charisma were two transformational leadership factors that predicted LMX and are the cause for subordinates to behave in ways (such as making extra efforts) that strengthen relational ties with the leader. Conclusion It seems clear that transformational and transactional leadership have positive relationship with organization outcomes; however this paper clearly stated the superiority of transformational leadership on building high-quality leader-follower (LMX) relationships based on the development of the Four Iââ¬â¢s. First, by using a charismatic approach, transformational leaders create an idealize influence that augment followerââ¬â¢s emotions and commitment with the leader and organizational vision. Second, this paper claimed that by using inspirational motivating behaviour, leaders motivates followers to transcend from self-interest to commitment cooperative goals which led them to perform without expecting immediate personal benefits. In contrast, the transactional exchange-relationship with followers was meant to be limited to the interest on the reward promised as exchange for their task accomplishment in a very self-satisfying attitude. Given the importance of innovation in todayââ¬â¢s organizations, intellectual stimulation was consider to be fundamentally related to followersââ¬â¢ commitment and organization increase on job performance and competitiveness. Unlike, by delimiting the outcome expected from followers and the reward system, transactional leadership was appeared to harm innovation in organization. Not different is the outcome of using managing by exception dimension. Finally, by having an individual consideration, transformational leadership are more likely to developed high-quality relationship members that are expected to be more loyal and perform in greater extent without expecting immediate tangible benefits. In contrast, commitment and higher achievement with a transactional leadership was limited to the exchange of direct economic and tangible benefits. Overall, due to the development of followers and their potential, transformational leadership is assumed to be more appropriate for many different types of companies and situations at any level across cultures. Reference list Amabile, TM 1998. ââ¬ËHow to kill creativityââ¬â¢. Harvard Business Review, vol. 76, pp. 76ââ¬â87. Avolio, BJ, Bass, BM, Jung, DI 1999, ââ¬ËRe-examining the components of transformational and transactional leadership using the multifactor leadership questionnaireââ¬â¢. Journal of Occupational and Organizational Psychology, vol. 72, no 4, pp. 441ââ¬â462. Avolio, B J, Zhu, W, Koh, W, Puja, B 2004, ââ¬ËTransformational leadership and organizational commitment: Mediating role of psychological empowerment and moderating role of structural distanceââ¬â¢. Journal of Organizational Behaviour, vol. 4, pp. 1ââ¬â18. Bass, BM, Avolio, BJ 1990, ââ¬ËThe Implications of transactional and transformational Leadership for individual, team and organizational developmentââ¬â¢. Research in Organizational Change and Development, vol. 4, pp. 231ââ¬â72. Bass, B. M. Avolio, B. J. (eds. ) 1994, Improving organizational effectiveness through transformatio nal leadership, Sage Publications, London. Deluga, R J 1992, ââ¬ËThe relationship of leader-member exchanges with laissez-faire, transactional, and transformational leadershipââ¬â¢. Impact of leadership. pp. 237ââ¬â247. Dorfman, PW, Howell, JP, Hibino, S, Lee, JK, Tate, U, Bautista, A 1997, ââ¬ËLeadership in Western and Asian countries: Communalities and differences in effective leadership processes across culturesââ¬â¢. Leadership Quarterly, vol. 8, no 3, pp. 233ââ¬â274. Felfe, J, Tartler, K and Liepmann, D 2004, ââ¬ËAdvanced Research in the Field of Transformational Leadership. Zeitschrift fur Personalforschung ââ¬â German Journal of Human Resource Research. Special Research Forum, vol. 18, pp. 262ââ¬â88. Geyer, A, Steyrer, J 1998, ââ¬ËTransformational leadership and objective performance in banksââ¬â¢. Applied Psychology: An International Review, vol. 7, no 3, pp. 397ââ¬â420. House and Aditya; RC, Liden and Maslyn JM 1993, ââ¬ËScale development for a multidimensional mesur of Leader-Member exchangeââ¬â¢, Paper presented at annual meeting of the Academy of Management, Atlanta, Georgia. Paul, J, Costley, DL, Howell, JP, Dorfma, PW 2001, ââ¬ËThe effects of cha rismatic leadership on followersââ¬â¢ self-concept accessibilityââ¬â¢, Journal of Applied Social Psychology, vol. 31, no. 9, pp. 1821-1 844. Podsakoff, PM, MacKenzie, SB, Moorman, RH, Fetter, R 1990, ââ¬ËTransformational leader behaviours and their effects on followersââ¬â¢ trust in leader, satisfaction, and organizational citizenship behaviour. Leadership Quarterly, vol. 1, pp. 107ââ¬â142. Rubin, RS, Munz, DC, Bommer, WH 2005, ââ¬ËLeading from within: the effects of emotion recognition and personality on transformational leadership behaviorââ¬â¢. Academy of Management Journal, vol. 48, pp. 845ââ¬â58. Towler, AJ 2003, ââ¬ËEffects of charismatic in? uence training on attitudes, behaviour, and performanceââ¬â¢. Personnel Psychology, vol. 56, no 2, pp. 363ââ¬â381. Vaccaro, IG, Jansen, JJ, Van Den Bosch, FA, Volberda, HW 2010, ââ¬ËManagement innovation and leadership: The moderating role of organizational sizeââ¬â¢, Journal of Management Studies, pp. -23. Walumbwa, FO, Orwa, B, Wang, P, Lawler, JJ 2005, ââ¬ËTransformational Leadership, Organizational Commitment, and job satisfaction: A comparative study of Kenyan and U. S. financial firmsââ¬â¢, Human resource development quarterly, vol. 16, no. 2, pp. 235-265. Wang, H, Law, K, Hackett, R, Wang, D, Chen ZX 2005, ââ¬ËLeader-member exchange as a mediator of the relationship between transformational leadership and followersââ¬â¢ performance and organizational citizenship behaviourââ¬â¢, Academy of Management Journal, vol. 8, no. 3, pp. 420-432. Weber, M 1947, ââ¬ËThe theory of social and economic organizationsââ¬â¢, translated by T. Parson, New York. Yammarino, FJ, Dubinsky, A J, Comer, LB, Jolson, MA 1997, ââ¬ËWomen and transformational and contingent reward leadership: a multiple-levels-of-analysis perspectiveââ¬â¢. Academy of Management Journal, vol. 40, pp. 205ââ¬â22. Zhang, X, Cao, Q, Tjosvold, D 2010, ââ¬ËLinking transformational leadership and team Performance: A con? ict management approachââ¬â¢, Journal of Management Studies, pp. 1-26.
Wednesday, November 6, 2019
Combined Gas Law Definition and Examples
Combined Gas Law Definition and Examples The combined gas law combines the three gas laws: Boyles Law, Charles Law, and Gay-Lussacs Law. It states that the ratio of the product of pressure and volume and the absolute temperature of a gas is equal to a constant. When Avogadros law is added to the combined gas law, the ideal gas law results. Unlike the named gas laws, the combined gas law doesnt have an official discoverer. It is simply a combination of the other gas laws that works when everything except temperature, pressure, and volume are held constant. There are a couple of common equations for writing the combined gas law. The classic law relates Boyles law and Charles law to state: PV/T k where P pressure,à V volume,à T absolute temperature (Kelvin), andà k constant. The constant k is a true constant if the number of moles of the gas doesnt change.à Otherwise, it varies. Another common formula for the combined gas law relates before and after conditions of a gas: P1V1 / T1 P2V2 / T2 Example Find the volume of a gas at STP when 2.00 liters is collected at 745.0 mm Hg and 25.0 degrees Celsius. To solve the problem, you first need to identify which formula to use. In this case, the question asks about conditions at STP, so you know youre dealing with a before and after problem. Next, you need to understandà STP. If you havent memorized this already (and you probably should, since it appears a lot), STP refers to standard temperature and pressure, which is 273 Kelvin and 760.0 mm Hg. Because the law works using absolute temperature, you need to convertà 25.0à degrees Celsius to the Kelvin scale. This gives you 298 Kelvin. At this point, you can plug the values into the formula and solve for the unknown. A common mistake some people make when theyre new to this kind of problem is confusing which numbers go together. Its good practice to identify the variables. In this problem they are: P1à 745.0 mm HgV1à 2.00 LT1à 298 KP2à 760.0 mm HgV2à x (the unknown youre solving for)T2à 273 K Next, take the formula and set it up to solve for the unknownà x, which in this problemà isà V2: P1V1à / T1à P2V2à / T2 Cross-multiply to clear the fractions: P1V1T2à P2V2T1 Divide to isolateà V2: V2à (P1V1T2) / (P2T1) Plug in the numbers and solve for V2: V2à à (745.0 mm Hg à · 2.00 L à · 273 K) / (760 mm Hg à · 298 K)V2 1.796 L Report the result using the correct number of significant figures: V2à 1.80 L Applications The combined gas law has practical applications when dealing with gases at ordinary temperatures and pressures. Like other gas laws based on ideal behavior, it becomes less accurate at high temperatures and pressures. The law is used in thermodynamics and fluid mechanics. For example, it can be used to calculate pressure, volume, or temperature for the gas in clouds to forecast weather.
Monday, November 4, 2019
Marketing strategy of Pacific Coffee Company (Hong Kong) Essay
Marketing strategy of Pacific Coffee Company (Hong Kong) - Essay Example Coffee retail business is the most flourishing business in the economic recession. With every business facing difficulties in operations, coffee retail business enjoys growth. One such company is Pacific Coffee Company; subsidiary of China Resources Enterprise ltd. Due to the rapid growth of coffee consumption in the mainland China, the company has decided to blanket the market with companyââ¬â¢s coffeehouses. It was found that the marketing strategies of the company were to some extent focused on becoming the largest retail of coffee provider and to attract the customers towards the companyââ¬â¢s products. By this it was concluded that marketing strategy can play an essential role in the success of the company and to do so effective and efficient marketing strategies are required for the company to live up to their dreams. Some recommended strategies for the company were to enhance the implementation of technology into the business operations, expansion into new markets, diversification of the products, collaboration with banks, colleges and companies to allow selling of companyââ¬â¢s products in their premises, promotional strategies, shifting the focus from retail business to under-serviced sectors, additional value creation and last but not the least online pre-ordering of the coffee to reduce the waiting time of the customers. By implementing above mentioned marketing strategies the company would have a competitive edge over the other players in the market. These recommendations would help the company to be the leader of the market with profitability, growth and greater opportunities. Table of Contents Executive summary 1 Introduction 3 Methodology 4 Situational analysis 4 Segmentation, Targeting and Positioning (STP) 6 Segmentation: 6 Targeting: 6 Positioning: 6 SWOT analysis 7 Strengths 7 Weaknesses 7 Opportunities 8 Threats 8 Recommended Objectives and Goals 8 Recommended Marketing strategies and Programmes 9 Penetrating the Market 9 New Target Audience 9 Global Expansion 10 Collaboration with Banks, Colleges and Companies 10 Expanding the Coffeehouses in Mainland China 10 Additional Value Creation 10 Introduction of iPhone Applications 11 Product Diversity 11 Promotional Strategy 11 Increasing the Service Time 11 Focusing on under-developed Sectors 12 Conclusion 12 References 14 Introduction Coffee ret ail business is one of the fastest growing businesses even in such economic conditions (Roast Magazine, 2012). Being inspired from the American and European coffee culture, Pacific Coffee Company (PCC) set its foot in Hong Kong market in year 1992 (Pacific Coffee, 2012a). Being a pioneer in such market, the aim was to provide the customers with ââ¬Å"the perfect cup of coffeeâ⬠in order to meet the thriving demand of the customers. With the passage of time, the company was known for its quality and a competitive position in the Hong Kong market (Pacific Coffee, 2012a). The PCCââ¬â¢s expansion in the Asian region was another success for the company. Due to the strong brand reputation, the company was able to expand in China, Singapore and Malaysia. With the main focus on Hong Kongââ¬â¢s coffee market, the company operates more than 100 shops in Hong Kong with 130 outlets in China, Singapore and Malaysia (Pacific Coffee, 2012a). With future expansion plan, the companyâ⬠â¢s 80 percent shares were bought by China Resources from Chevalier Pacific Holdings (Leung and Lui, 2010). The aim of this expansion was to expand the business in China a lot faster and to be the Chinaââ¬â¢s largest coffee-shop operator (Syed, 2010). In this report, marketing strategies of PCC would be assessed along with the value creation process of the company. The research would also highlight the key strengths and weaknesses of the companyââ¬â¢s marketing strategies to provide significant information to the readers. Moreover, it includes the environmental analysis and recommendations for the company to improve the profitability, market share and value creation pr
Friday, November 1, 2019
Weekly Discussion Essay Example | Topics and Well Written Essays - 250 words
Weekly Discussion - Essay Example In this regard, the reason why Klein and Zeljka have to respond to the counter-arguments posed to the original study was to further make the issue clear. Klein published the article I Was Wrong, and So Are You in The Atlantic, and objected to publishing in The Wall Street Journal. This can be considered as a deliberate attempt of ensuring that the information is tailored to the appropriate audience. In doing this, Klein must have been aware that The Atlantic and The Wall Street Journal command different audience. It is widely argued that The Wall Street Journal is most read by policy makers, including the politicians. On the other hand, The Atlantic is read by the general public, which may not necessarily counter as policy makers, but inform the decision making process. These include parents, students and businessmen. In my view, the reason why information as well as the media should be changed is to assure information objectivity. This is in reference to the fact that people have different points of view and interest. This means that for the objectives of the information to be realized, adjustments for inclusivity should be
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