Genetics Assignment Example | Topics and Well Written Essays - 1250 words

Genetics - Assignment Example Accordingly, the accumulation of mutant mtDNA in the reproductive tissues appears to underlie/impair fetal viability, thus, increasing chances of having recurrent miscarriages. 8 In the following pedigrees, the disorders or traits presented follow simple patterns of Mendelian inheritance. For each trait, determine the most probable mode of inheritance, stating whether the trait is due to an autosomal or X-linked gene, and a dominant or recessive allele. In each case, indicate and explain the evidence for each pattern, giving at least one statement and example from the pedigree to defend each part of your analysis. Then, providing a legend for your symbols, assign genotypes to the specified individuals. (15 marks) 9 Achondroplasia is an autosomal dominant disorder associated with a gene on chromosome 4. Sickle cell anaemia is due to a gene on chromosome 11. A man and a woman with achondroplasia, who each had a normal parent, are carriers for sickle cell anaemia. Every individual has two copies of each of the genes in their system, one from each parent. The color of the human eye color is determined by at least three hereditable genes. However, only two are well understood. A gene often has two alleles: a dominant one that confers eye color (B for blue eye color) and a recessive one which gives rise to the brown eye color. A brown eyed dad and a green eyed mom may be carriers of the recessive gene of eye color, and thus be able to pass down brown eye genes to their children. As alluded to in the diagram above, both parents are carriers of the brown eyes genes. There is, thus, a slim chance that brown eyed child [bb/gg] being born in the family. Both lead to monoallelic expression [without altering the genetic sequence]; that is genomic imprinting and X-inactivation share certain physical properties such as DNA hypermethylation, altered replication timing

Entertainment History Essay Example for Free

Entertainment History Essay Within this essay it describes the popular and most common entertainment in Britain, from radio to the movies, in the beginning of the 1930s. It reveals key feature of entertainment in the early 1930s, for instance how it started, what were their intentions and what they involved. The radio plays a huge amount in our lives thats why when it first began it was a phenomenon for the public and became a big success for the nation. It was formed on 18th October 1922, by a group of leading wireless manufactures. Its founder, John Reith, believed that the BBC should educate, inform and entertain the public, he states this when he says Broadcasting should bring all that is best in every department of human knowledge, endeavour and achievement. Reith enforced many regulations for instance; rude jokes were not allowed; he banned light entertainment on Sundays; and presenters had to speak properly so accents or dialects were not allowed. He felt that the BBC should provide popular programmes, however he also wanted BBC to be educational and enlightening experience. Which the BBC accomplished, it broadcast all over the U. K and was able to entertain and inform those in their own home, which brought families together. Though the radio had its rivals such as newspapers, and magazines it managed to overcome this by reaching out to all types of the public for example male, female, all classes, the educated and the illiterate. It became even more popular when the new wireless sets were invented; this was a great delight to all homes in Britain, it was very accessible in letting families enjoy listening to the radio. As well as putting across the news around the world the BBC also aired other kinds of interest such as dance music and comedy. This was a great improvement for singers and band leaders because it made them a vast amount of recognitions by the public because it caused their sales of their records to increase hugely. Band leaders such as Jack Payne and Henry Hall were very popular also common programs for example Bandwagon went unmissed. As a result, radio was a family orientated source of entertainment and became a way of spending the night in, whilst enjoying yourself, rather than spending your night out. Another big source of entertainment was the cinema. Just as the radio allowed families coming together the so did the cinema, though it was more a family outing. The film industry grew rapidly, however at first the British film industry couldnt compete with the American film industry. It wasnt as technically advanced as the American films and the British public preferred to watch more films from America which didnt created a bigger obstacle for the British film industry. Consequently in 1927 the government passed an act ensuring that at least 5% of the total number of films should be shown in cinemas had to be British. And during that year sound movies was introduced this was a set back for the British film industry economically the silent movies were no match to the talkies. Such film like The Jazz Singer starring Al Jolson was the first sound movie to be shown though the first ten minutes of the film really had sound. Sound became a sensation; people were able to engage in the films for low prices. This was a way of bringing many forms of relationships together such as, couples, friends and families. It was seen as a safe, comfortable and relaxing environment for everyone to enjoy an evening and because one ticket could be used for the whole day, people could spend the entire day in the cinema. Also Tennis became very popular, tennis clubs emerged increasingly and tennis courts were built in public parks by the local council. Though tennis was very popular it was quite expensive therefore it mainly attracted the middle and the upper class. Also because of its uniform it generally appeals to women, there dresses were shorter and movable as a result women could play much more comfortably. Cricket was a further type of entertainment that attracted the middle and upper class. This was an extremely popular sport, it grabbed a lot of attention especially the men. Matches were filled with people mostly the men. And the success of Don Bradman, who was the one who sailed through nearly every match, initiated cricket hitting headlines. Football was a tremendously popular sport that was also male dominated, however it generally drew the attention of the working class. Because this was a new sport, and the prices were very cheap crowds of 50,000 to 60,000 attended the first division matches. It was so crowded people were literally on the field, although during the early 1930s, since this was a fresh new sport the men werent as rowdy and uncontrollable as the men are today. Even football pools were produced, this suggests the popularity of football and how the people of the 1930s were influenced by this sport. In contrast to these sports greyhound racing was very popular as well though it werent as positive as the others. It attracted the working class and made them spend money to get money, although it didnt work like that for the majority of people; it increased gambling; dept and led to addiction. The unemployed gambled as much as the working class but just spent less money, all of this reflected the fact of entertainment rising in the early 1930s. Music halls were an additional strong type of entertainment in the early 1930s, however as grey hound racing was a negative type of sport so was music halls. It was where a selection of entertainment was staged in a large hall with tables at which drinks were served. It presented a variety of entertainment involving a mixture of popular songs, performing animals, acrobats, male/female impersonators, and comedians. It also assists in many acts becoming popular such as Flanagan and Allen, Gracie Fields, Max Miller, and George Formby. The halls mostly attracted the working class because of its cheap prices; it was a place to socialize; and the availability of alcohol was one of the music halls attractions. People really came to music halls to unwind and have a lively time. Therefore, because the hall encouraged heavy drinking among both men and women, it didnt appeal to families seeing as it wasnt a place for children. Music halls went into a gradual decline after the introduction of talking films, Jazz, Swing, Big Band dance music and cinema. Its restriction on the range of audience, which limited their customers, was another reason of their failure. Musicals were similar to the music halls as they were both centered on music and performances; however because of the two different audiences it was incredibly different as well. Because of it sophistication musicals mainly attracted the middle and upper classes, the result of this meant that there was no competition. Therefore they carried on being successful. To conclude entertainment was a break through in allowing people to overcome to effects of the depression. Therefore it gave a rise to the upcoming of entertainment and how it affects our lives today.

Impact Of Workplace Stress On Organizational Performance Psychology Essay

Impact Of Workplace Stress On Organizational Performance Psychology Essay Stress in the workplace is a new phenomenon in modern life and has become an increasingly one of the most discussed topic over the past decade. Workplace stress can be defined as the change in ones physical or mental state in response to workplaces that pose an appraised challenge or threat to that employee (Thomas W. Colligan, 2005). It is already established that the stress in the workplace represents threat not only for physical health of one worker, but also for the health of all labour collective. As a result, it does not only affect the employees performance, reduces their work efficiency but also may have huge impact to an organisations performance and can lower an organisations profit (Ton, Huckman, 2008). Statistical figures indicate stress is a bigger problem than people give it credit (Ornelas and Kleiner, 2003). According to survey which was conducted by Health and Safety Executive in 2006, one in six working people in the UK believed that their job was very or extremely stressful (Bupas health information team, 2010). There are many factors that can cause stress in the working place. Most known factors are work overload; job insecurity; long working hours; insufficient training; poor work organisation and etc. Workplace stress has been proved to lower productivity, increase absenteeism, and create pervasive patterns of dysfunction in the workplace (Anderson Puluch, 2001; Levin-Epstein, 2002). Finally, in modern day most of the organisations understand very well that one of the main reason of unwanted expenses of the organisation are the costs caused by stress according to the Health Safety Executive (HSE) in the UK, work-related stress, depression or anxiety accounted for an estimated 13.5 million lost working days in Britain in 2007/08. This makes stress an extremely expensive loss for businesses: the HSE estimates that British industry loses  £370 million a year due to stress (UK HSE stress statistics). Although, most organisations spend a lot of time, money and efforts to prevent or control the stress, unfortunately in most cases these efforts are not effective. Therefore organisations need to develop new ways to deal with increasing stress in working place. Scope of study This paper aims to explain an aspect of organizational performance that has not been extensively examined the impact of stress on organizational performance. The paper attempts to make an emphasis on how impact of stress in organizations can be perceived and understood, and it also argues that the stress is an important element in the theory and practice of organizational performance. Research will be carried out using both secondary data and primary data in the forms of interviews and questionnaires with organisations. Specific Research Questions Do the organisations really take the impact of stress seriously and how they intend to deal with it? Hypothesis H 1: In spite of rising expenses, organisations will still ignore impact of stress as useless knowledge. H 2: Having realized the impact of stress organisations will develop new mechanism in minimising and controlling stress. Objectives O 1: To identify main factors behind workplace stress O 2: To evaluate the costs which are caused by stress at a workplace and how they impact on the organizational performance? O 3: To establish workable stress management techniques for managing the workplace stress. Literature review This chapter will critically analyse the stress development process and its impact to organisational performance. The literature review is structured into two sections. The first section the theory of organizational stress examines the theory of stress development and the main factors of the organizational stress. The second part reviews the impact of stress to an organisational performance and suggests ways how to manage it. Theory of organizational stress According to Cote S. Morgan LM (2002), stress is basically a form of unpleasant emotion and has got the potential to increase employee turnover. But other authors such as Hart and Cooper (2001) point out that the scientific community still has not reached an agreed position on the meaning and definition of occupational stress. In the past three decades, a lot of studies have been carried out in order to explore the main factors of organisational stress and to find out link between employee job stress and organizational performance. The studies have been conducted in a various organisations. The early studies indicate deadline pressures, job dissatisfaction, job insecurity and repetitive work (Kasl, 1973) as the main factors of organisational stress. More recent studies have explored some others factors such as inadequate feedback regarding performance, lack of training and lack of control (Doby Caplan, 1995). The lack of opportunity of interaction with other workers or in other words isolation is another important factor in increasing workplace stress (Wachtel, 1989). The feeling of isolation does not only involve machinery or assembly line jobs, it may also take place in boring or repetitive jobs such as computer data entry which tend to increase employee stress levels (Karasek Theorell, 1990). Impact of stress to an organisational performance and how to manage it Stress at workplaces is on rise which in its own turn results higher rate of sickness (absenteeism) among employees, reduced productivity and overall, having negative impact on the efficiency of organisational performance. Managing stress and its attendant health and productivity consequences may be one of the biggest challenges facing organizations in the 1990s (Murphy, 1995). In the article, Management: Principles and Practices written by Holt D. H. (1990), the author suggests that in order to manage job stress effectively, two conditions should be met. First, the individual worker must be able to recognize causes of stress and realize their consequences and second, organizations must develop stress prevention and stress reduction techniques. The book Managing workplace stress written by Susan Cartwright, Cary L. Cooper (1997) can be considered one of the best book in the field of organisational stress. The book on the one hand provides detailed information about the source of stress at a workplace, examines the cause of the rise in work-related stress; on the other hand, it proves clearly the important role of organisational culture in stress managing process. According to Nelson Quick (1996) excess stress has direct impact in lowered individual and organizational performance, as a result both production and quality suffering. In other words, stress is a main factor that causes organizational inefficiency, absenteeism because of sickness, increased costs of health care and decreased job satisfaction (AbuAlRub, 2004). Meantime, both field and laboratory studies are always carried out to find out the best ways to reduce work-related stress. Some findings have been proved very effective. One of them is involvement of employee in decision making process that significantly lowers job-related stress (Landy, Quick and Kasl, 1994). Another finding is the measures developed by authors like Khanka (2000) and Cole (2002) which can be adopted to reduce workplace stress. The measures require the organisations to set up clear objectives that will assist to minimize job and role ambiguity; to maximize employees job fit through careful screening and selection. Specific questions to focus on in the study This study seeks to answer the following research questions: Objective 1: Identify what stress is and main factors behind stress at a workplace? Is there a relationship between impact of stress and organisational performance? What is role of stress in organisational productivity? What are the roles of the modern technologies in rising workplace stress? Does stress have always negative impact or can it have positive impact to organisational performance as well? Objective 2: Why is it important to manage causes of work-related stress? Apart from financial cost, what affects have stress on organisational performance? What is best strategies and techniques for preventing job stress What is role of organisational culture/climate in reducing stress? Methodology The section will assess all available research methods and choose most suitable methods in order to accomplish the proposed tasks. Main aim of the section is to find out how seriously is taken the impact of stress by organisations. 5.1 Approaches to research For all objective of this study the author will be using a scientific approach. The author intends to use statistical data throughout the research to support the analysis. 5.2 Research Design Multiple method of data collection will be used for this study. The reason for this is that using mixing modes will maximise responses as the author plans to take interview from some respondents face-to-face, from others by mail. In addition, a structured questionnaire will be used to collect data from the respondents on the variables of the study. 5.3 Sampling Sampling is a fundamental method of inferring information about an entire population without going into any trouble or expense of measuring every member of the population (White, Wilson Pfoutz, 2006). As this study will be carrying out survey, random sampling technique will be used in the sample selection. Sampling will be conducted in both interview and questionnaire forms. 5.4 Data collection Though, the study includes both primary and secondary data, the author will mainly use primary data for this study. Face-to-face interviews will be carried out with representatives of a number of organisations. Because of time and physical constraints, questionnaires will be sent via e-mail. Secondary data will be gathered from different online libraries and databases. 5.5 Evaluation of primary research methods for this specific study Surveys and questionnaire will be used in the study in order to gather primary data. Main purpose of surveys are to assess the distribution of some variables such as proportion of the population of different age groups, sex, religion, castes and languages, knowledge, attitude and adaption of practices about particular issues, and other information of similar nature about the population (Commonwealth of Learning, 2000). 5.6   Ã‚  Possible Conclusion to research objective From this study, it can be concluded that stress can have both negative and positive impact on organisational performance. Organisations can encourage productive stress by assisting employees to build challenge into their work, can organise stress-reduction workshops and also can change element of stress by redesigning jobs to reduce role conflict and role ambiguity.

General Prologue :: essays papers

General Prologue When the seasons are filled with fresh, milk-white snow to pack happy snowmen together, and lively decorations to usher the New Year in and keep the evil spirits away; when also the frenzied salary-men are able to relax from jobs and pursue pet hobbies, it is joyous winter. In the spirit of celebration, pilgrims from the world over who are part owners in Chang Securities have come to the San Francisco company headquarters for the anniversary of incorporation. And so by chance, a company of five unique pilgrims met each other at the Chicago Airport. Each different pilgrim was headed for the celebration on the same, delayed flight. They were a pleasant lot, and soon after the first half hour had passed I got to know each one quite well. But before I continue my tale, and while it is fresh in my memory, let me tell you about the social station of each, what they wore, what their jobs were, and who they were. First there was a woman senator who had a bright, but smooth smile and a neat appearance. Her campaign shout was, â€Å"Make the world a happier one.† She was often quick to praise lavishly, but whether or not it was deserving had secondary importance to her. She could speak a dozen phrases in a dozen different languages so her value in international matters would increase. Besides her language skill, she took classes in the sciences, literature, and music at night school, but she never stayed on for more than a few weeks at a time. She dressed conservatively, as a candidate for office would: stately, and filled with dignity and confidence. Coworkers sometimes pointed out her elegance in taste and lifestyle: she was often seen with dozens of politicians at orchestra concerts, and she loved to play golf with the richest businessmen. If I remember correctly, she said she loses at golf on purpose so her business opponents will feel accomplished. At Christmas she would give the c hildren of her wealthy supporters lavish gifts and fine food; no expense would be spared to make them happy. With her was a merry, wealthy landowner. His motto was to live for pleasure, and he had adequate funds to indulge himself with. He was a fat man; he always had to choose first class because he could not get himself to fit inside the coach airplane seat.

Boosting Key Milk Nutrients May Help Lower

The report (ScienceDaily screen 1) mainly focused on the important contributions of vitamin D, calcium and magnesium in risk prevention for diabetes; most especially the type 2 diabetes. (qtd in ScienceDaily, screen 1)The language used is fairly comprehensive with the use of familiar words and with only a few technical terms. The author’s understanding of the previously reported findings is sufficient to allow him or to allow her to thoroughly explain the findings of the studies presented. In both studies conducted by Pittas et al. and Larsson et al., meta-analyses approaches were conducted to obtain the results. (qtd in ScienceDaily, screen 1) Studies performed were mainly based on American diet, therefore similar studies may be conducted to evaluate whether these findings apply for other racial and ethnic populations.These information would really be useful for individuals who have diabetes or are at risk of developing diabetes; as well as the general population for the prom otion of health and prevention of disease. However, to a reader without extensive nutritional background, results of this study may be misleading. The report may mislead by giving the reader the notion that drinking milk alone will be prevention enough against diabetes. Other preventive measures for diabetes should have been included in the report to avoid misinterpretation.Reference:ScienceDaily. â€Å"Boosting Key Milk Nutrients May Help Lower Type 2 Diabetes Risk†. (13 July 2007). 16 July 2007 .Web address: http://www.sciencedaily.com/releases/2007/07/070711001452.htmMore on: Diabetes, Dietary Supplement, Vitamin, Hormone Disorders, Nutrition, Osteoporosis Boosting Key Milk Nutrients May Help Lower Type 2 Diabetes Risk Science Daily — Most Americans fail to get the calcium and vitamin D they need, but this shortfall could be affecting more than their bones. It may, at least in part, be one reason behind the epidemic of type 2 diabetes, suggests new research conducte d at Tufts University. Drinking more milk — a leading source of calcium and vitamin D in the American diet — could help decrease the risk of type 2 diabetes by nearly 15 percent, according to the new meta-analysis and review published in the Journal of Clinical Endocrinology & Metabolism (1).In the thorough analysis of previously published studies, the researchers found chronically low levels of vitamin D were linked to as high as 46 percent greater risk of type 2 diabetes. Yet boosting vitamin D alone would likely have little effect in healthy adults. Instead, the researchers suggested that a combination of vitamin D and calcium, like that found in milk, would have the greatest potential to help prevent diabetes, especially among those at highest risk for the disease.Examining the intake of milk and milk products specifically, the researchers found there was nearly a 15 percent lower risk for type 2 diabetes among individuals with the highest dairy intake (3-5 serving s per day) compared to those getting less than 1  ½ servings each day.Most of the studies assessed were observational and the limited number of intervention trials makes definitive conclusions difficult, yet the Tufts researchers suggest calcium and vitamin D may affect the body's ability to produce or utilize insulin, the hormone the body makes to process sugar that is impaired in those with diabetes and pre-diabetes.Beside calcium and vitamin D, milk is the primary beverage source of magnesium, which a second meta-analysis found may also reduce the risk of type 2 diabetes (2). The analysis concludes that for every 100 milligram increase in magnesium up to the recommended dietary intake, the risk of developing type 2 diabetes decreased by 15 percent.Type 2 diabetes and insulin resistance syndrome (or pre-diabetes) affect a staggering 75 million Americans and death rates from diabetes have increased nearly 45 percent over the past 20 years, elevating the importance of finding new ways to treat and prevent this deadly disease.Milk is a primary source of calcium and vitamin D in the American diet. In fact, government reports indicate that more than 70 percent of the calcium in our nation's food supply comes from milk and milk products. Additionally, milk is one of the few food sources of vitamin D, which is fast emerging as a â€Å"super nutrient.†The recommended three servings of lowfat or fat-free milk provides 900 mg of calcium, 300 IU of vitamin D and 80 mg of magnesium daily.Reference:(1) Pittas AG, Lau J, Hu FB, Dawson-Hughes B. REVIEW: The role of vitamin D and calcium in type 2 diabetes. A systematic review and meta-analysis. Journal of Clinical Endocrinology & Metabolism. 2007;92:2017-2029.(2) Larsson SC, Wolk A. Magnesium intake and risk of type 2 diabetes: a meta-analysis. Journal of Internal Medicine. 2007. doi: 10.1111; epub ahead of print.Note: This story has been adapted from a news release issued by Weber Shandwick Worldwide

River Valley Civilizations essays

River Valley Civilizations essays In every of the four River Valley Civilizations, religion played an enormous role in shaping and cultivating each civilization. This essay will briefly discuss how religion formed the River Valley peoples government and view on geography. Religion dictated how the peoples of the River Valley Civilizations managed government and geography. Religious leaders played prominent roles in every River Valley Civilizations form of government. From ancient Egypt and Mesopotamia to Chinas historic empire and the Indus River Valley, all the River Valley Civilizations had significant religious figures. In ancient Egypt, the pharaoh was revered as a God and therefore was given his right as supreme governing authority in the eyes of the people. The elusive emperors of China gained there governing rights by a mandate of heaven creating long lines of dynasties until the common people of China felt the dynasty had lost the favor of the Gods. Chinese emperors were not only governing leaders but also the spiritual leaders of ancient China. Mesopotamian and Indus River Valley priests were referred as has head officials who had vast amounts of authority in these two civilizations primitive forms of democracy. Religion shaped the structure and social caste of the four River Valley Civilizations. Religion had a major effect on how the people of the River Valley Civilizations treated and viewed the land and their geography. The Indus Valley Civilization believed that spirits embodied all things including trees, soil and the wind. Civilizations often gave sacrifices to the land and waters to ensure a bountiful harvest the coming fall. In Egypt, the people that lived of the Nile River would throw in presents and gifts as offerings to secure the annual flooding of the Nile. If great tragedy struck civilizations, such as drought, famine, of flood, the people would shout out to the Gods and repent for wha ...