Sunday, September 22, 2019

Argumentative text about education at home Essay Example for Free

Argumentative text about education at home Essay Education means school, classrooms and annoying teachers- for me. But it does not mean this any more. There is an increasing number of parents now who teaches their children at home. Education at home has advantages and disadvantages. One advantage is that children can study flexible. Their parents can give them a different timetable every day to make studying more interesting. Secondly the children wont be affected by criminal classmates and wouldnt learn bad things. But there are disadvantages too. First of all, children could finally feel lonely if they study at home every day. At school, they would study together and have fun in the break with other students. Thats an easy way for children to find friends. However, studying at home with their parents, children may hard find a friend. see more:paragraph writing on my school Secondly, children might find it difficult to work with others, because theyre used to study or work alone. But sometimes you have to work with colleagues as a group in your job. But if you have problems with team members, you could lose your job. Finally, children could be worse in their study, comparing with children who have classes at school. Their parents can not give a guarantee, the quality of education of their children. Sure, there are many people who graduated from university but that does not mean that they are good teachers. In addition, parents also have to focus on their work, which means they cant spend all day with the education of their children. In conclusion, children can learn more and have a lot of friends when they go to school. Furthermore, children can also easily deal with a team work. Therefor parents shouldnt assume a huge responsibility to teach their children at home.

Saturday, September 21, 2019

Myanmar Ministry of Social Welfare

Myanmar Ministry of Social Welfare Uniqueness of Myanmar Social Welfare Model Chapter 1 Introduction Myanmar Ministry of Social Welfare, Relief and Resettlement was establish in the year 1953 and the government take the responsibilities of many social welfare activities and also keep expanding, in close collaboration with may United Nations agencies and international Non-governmental organization. Nowadays, United Nations agencies, Government Organizations and both local and international NGOs are carrying out the social welfare services in Myanmar in addition to the government social welfare departments. The department was formed 5 years during the parliamentary democratic government era soon after the country independent from the British colonial. After that as the Myanmar undergoes for many changing of the governments, such as democratic government, socialist government and military junta so the social welfare model of Myanmar is also changing from one government to another. It is of great interest for social work field to study what is the social welfare model that Myanmar is practicing. In this paper, I will try to discuss whether the Myanmar social welfare model can be explained by either Richard Titmuss models or Esping-Anderson models or combination or different from both. In chapter 2, I would like to do the literature review upon different definitions and models of social welfare in this chapter. In chapter 3, I would like to explain some information about the Social Welfare in Myanmar and try to identify which social welfare model can explain the practice. Chapter 4 will comprise the important of understanding Myanmar social welfare model and possible applicability of different models which might be best suited to country situation and culture so that the welfare services can provide the more efficiency towards the community. Chapter 2 Literature Review 2.1. Definitions of Social Welfare Social welfare includes those nonprofit functions of society, public or voluntary, which are clearly aimed at alleviating distress and poverty or at ameliorating the conditions of the casualties of society(R Dolgoff Feldstein, (2007). The another definition is all social interventions intended to enhance or maintain the social functioning of human beings(R. Dolgoff, Feldstein, Skolnik, 1997). The National Association of Social Work (NASW) defined Social Welfare as the full range of organized activities of voluntary and governmental agencies that seek to prevent, alleviate, or contribute to the solution of recognized social problems, or to improve the well-being of individuals, groups, or communities.(NASW, 1971) United Nations defined Social welfare as an organized function is regarded as a body of activities designed to enable individuals, families, groups and communities to cope with the social problems of changing conditions. In addition to and extending beyond the range of its responsibilities for specific services, social welfare has a further function within the broad area of a countrys social development. Social welfare should play a major role in contributing to the effective mobilization and deployment of human and material resources of the country to deal successfully with the social requirements of change, thereby participating in nation-building. (United Nations 1967) 2.2. Different models of social welfare Richard Titmuss (1970) introduced 3 models of social welfare which includes residual model, industrial-achievement model and institutional model. In residual model, it is charity and providing assistance in nature and the provision of social service is based upon selective either by mean testing or eligibility criteria. So, people can be socially stigmatized for the people who are receiving the social welfare services. The ideology of the residual model is based on the individual is responsible for trying to meet with the market economy and the welfare state is something to be avoided. In industrial achievement model, it mainly focuses on the individualist upon meritocratic and the provision is upon the individual merit. Hence, the nature of social welfare service is like workfare. In a meritocracy, society rewards (via wealth, position, and social status) those who show talent and competence as demonstrated by past actions or by competition. There is no social stigma and the welfare is upon the persons self-responsibility. In institutional model, Social welfare is seen as a normal and legitimate function of modern society (R. Dolgoff, et al., 1997). There is no stigma in this approach as it is regarded as a right of citizenship and most of the programs are universal and no more selective. Again, on the other hand, Esping-Anderson (1990) proposed that there is another three types of model namely conservative model, liberal model and social democratic model which are in fact equivalent to the Richard Titmuss (1970) 3 models of residual model, industrial-achievement model and institutional model respectively. The residual and industrial achievement models are similar in objecting excessive welfare. Table 1: Explanation of different models from different perspectives and the countries that are currently practices Richard Titmuss Model Residual Industrial Achievement Institutional Esping-Anderson Model Conservative Liberal Social Democratic Practising Country France, Germany, Austria UK, USA, Australia Sweden, Denmark, Norway Nature Charity, assistance Workfare Citizen right Basis of provision Selective (e.g. means test, eligibility) Individual merit Universal entitlement Social stigma May carry stigma Self-responsibility No stigma Ideology Free market, individual responsibility Individualist, Meritocratic Collectivist, State responsibility Government Role Non-intervention Non-intervention Intervention Chapter 3 Myanmar Social Welfare at a glance 3.1. Background of Myanmar Ministry of Social Welfare(YCDC, 2003) In Myanmar, the social welfare services are provided either from the government department, the department of social welfare or directly from UN, INGO and NGO services towards the community and vulnerable people. But still, as the government is military junta, every service either from the government or from the agencies need the government official approval in prior to any activities/services. When looking at the Ministry level, it has instituted three departments, the social welfare department, fire services department and relief and resettlement department. In addition to the three departments, the government has designated the Ministry of Social welfare, Relief and Resettlement as three national focal points Myanmar national Committee for womens affairs, National Committee on the Rights of the Childs Myanmar and National Committee on Social Development. Social Welfare in Myanmar claimed that they aim at helping towards a mutual adjustment of vulnerable and their social environment. The ministry has the following objectives of social welfare: 1. To assist the vulnerable groups so as to reintegrate into the society through social work methods. 2. To resettle and rehabilitate victims of disasters. 3. To make our country free from fire hazard. 4. To encourage the non-governmental organizations to participate in national movement for social development. 5. To train and form the fire service personnel and voluntary fire-men to become the reserve force to safeguard peace and stability of the state. In addition to the above objectives, the followings are the adopted policy of the Ministry. 1. Equalization of opportunities fore vulnerable group in Myanmar society. 2. The government attaches a high priority to the welfare of children, youth, women, national races residing in the disabled, the aged, socially handicapped and disadvantaged groups. 3. Responsible for rendering relief and resettlement services to victims of natural disasters such as earthquakes, storms, floods and fire disasters. The Union of Myanmar has also promulgated laws to ensure the rights and to protect the Citizen. Among the laws three are some basis laws which are directly concerned with Department of Social Welfare (DSW) to implement Social welfare programmes and for the protection of the socially handicapped citizens. These laws and regulation are Prostitution Suppression Act, 1949, Disabled Persons Employment Act, 1958 and The Child Law, 1993 under basic law. There are also 3 other related law present which are Registration of Kittima Adoption Ad, 1941. , Myanmar Maternal and Child Welfare Association Law (MMCWA), 1991 and Narcotic Drugs and Psychotropic Substance law, 1993. The DSW implements social welfare services in eight different areas of social needs by both direct and indirect means. The different types of social welfare services includes child welfare service, youth welfare service, women welfare service, care of the aged, rehabilitation of disabled, rehabilitation of ex-drug addicts, rehabilitation and socialization of Vagrants and grant-in-aid to voluntary Organization. According to local needs and situations, the contribution of social services has been made by the Non-governmental organization (NGOs) with the collaboration of community. At present, with the encouragement of the government there has been abundance of NGOs in Myanmar national as well as international NGOs. Myanmar National Committee for Womens Affairs (MNCWA) was formed on 3 July 1996, to implement activities for the advancement of women systematically. Subsequently, the Myanmar National Working Committee for Womens Affair (MNWCWA) was formed on 7 October 1996, to facilitate the activities. The government also designated the Ministry of Social welfare, Relief and Resettlement as the National Focal Point for Womens Affairs. Myanmar has acceded to the convention on the Rights of the Child in 1991 and the Child Law was enacted in 1993. The National Committee on the Rights of the Child (NCRC) was formed in October 1993, headed by the Minister of Social Welfare. The Department is implementing social development programmes in collaboration with the Asia and Pacific as well as ASEAN member countries. In addition to the above services provided by Ministry of Social Welfare, the department is also involved in conducting the Post Graduate Diploma in Social Work which was recently started in 2006. Previously there is no social work training in the country even though the objective number 1 of Ministry which includes providing the services with social work methods. This course is funded by UNICEF, joint with Department of Social Welfare and Department of Psychology (Yangon University). 3.2. Analysis of the Myanmar Social Welfare Model Even thought the ministry set up the objectives, we can found out that they did not have clear objective upon how to help and provide services towards the vulnerable and oppressed people. And also the policy and the objectives are only at the policy level and never reach to the implementation level. The staffs from the department of social welfare are civil servants and they are not motivated at all due to their low pay salary and no learning opportunities for their services. The nature of the Myanmar Social Welfare is mixed in nature as the government did not provide the direct services to the people. The services are coming mostly from the UN/INGO/NGO and some community based organizations with in terms of charity and humanitarian assistance. Even though the Government claimed that the services are universal to all but still far away from the actual coverage as there is no citizen rights at all in the country. The basis of provision of social welfare either universal or selective is also depend upon in the project agreement with the donor agencies and their funding policy. Compulsary education of up to 5th grade is funded by Unicef so it is universal to all the children of the country. Universal immunization programme (UCI) and expanded programme for immunization (EPI) are funded by Unicef, JICA, Japan Vaccines, AusAid so all the children under 5 years of age received the all the vaccinations under the health programme free. But on the other hand, in public housing, it is not provided to general public. The government provided only to the government civil servants but even not all the civil servants received the housing. Only the higher level officials received the public housing. But all the military servants receive the public housing. So, we can term it as highly selective with bias and might not term it as social welfare service. Social security is also received only the civil servants especially towards the military servants and the government did not take into account of the general public or community. The government health care is cost sharing in nature and all the patients need to provide the cost of the medicines and diagnostic and laboratory charges. The other charges such as doctors fees, nurses fees, room fees are free when they are admitted to the government hospitals. There is a department called Medical Social Work department in most of the big hospital but they are no more functioning at all now. They just present as a one of the required structure for the hospital. The staffs are also not trained by proper social work techniques but if the patient is too poor to buy the required medicines or something, they can contact to this medical social worker. If there is any money, donated by anybody, is present in this medical social work department, they provided to this poor patient. If not, they cannot provide any support and it is some form of charity based assistance. Family, children and youth services are based upon the residential care approach as the department of social welfare has many training schools for youth, children and even for women. In fact, these training schools are the same as the detention centre or care centre and not all the youth and children staying there are allowed to go out of this so called training school. There is no proper service setting providing towards family violence and child abuse even though there are high rate of such cases inside the country. As the government accede the UNCRC, and they formed National CRC, state and divisional CRC and even township CRC all over the country but all these are not functioning at all. There are some government owned NGO (GONGO) such as Myanmar maternal and child welfare association (MMCWA) and Myanmar Women Affairs Federation (MWAF) but they are also only the political figures and helping towards some cases of family violence, gender based violence (GBV) and child abuse but as they are also not trained social workers in their organization, the services that they provided are also like material supports based upon the charity and humanitarian assistance approach. There is no systematically helping towards the vulnerable. One of the important components of the social welfare services, the elderly services are also provided by INGO/NGO mainly. The government provide very small amount of money and official registration to these home for aged. The department of social welfare did not have any residential care facilities towards the aged. Social services provided towards disability peoples and rehabilitation service is also one of the weak areas in Myanmar. The rehabilitation is mainly towards the disable from the military servants who has lost their legs due to mine in the frontiers. INGO/NGO are now trying to work towards the community based rehabilitation programme with the permission of the government. Many of the community development are organized and implemented by the UN/INGO/NGO and government Ministry of Progress of Border Areas and National Races and Development Affairs. But this government ministry is mainly focused upon the material development such as road, bridges etc and not emphasize on the human and social capital development. There are no specialised services or agencies working for the ex-prisoner or offender. The government has correctional department under the ministry of Home Affairs which is also known as department of prisons. After the offender release from the prison, there is no follow up or social welfare services towards them. And also there is no agencies working upon these peoples. There is only one training school for the whole country where all the juvenile delinquent are detained and provided the correctional training. Still the staffs assigned in this training school are not trained social workers. There is no social stigma upon receiving the social welfare services and even the people are proud of receiving the social welfare service assistance because very few peoples received these services. Government ideology upon social welfare is to make the social control upon the community. The government did not implementing services or even not they implemented, they are not efficiently implemented. They did excess intervention towards policy upon the providing the services by the agencies. Chapter 4 Conclusion According to the situational analysis of the social welfare services present in the country Myanmar, the current model that the government implementing is not either residual or industrial achievement or institutional model. And also there is no specific model because the department does the services at ad hoc basic depending upon the project proposed by the UN/INGO/NGO. Due to the ruling by the military junta, the department of social welfare did not have budget for their welfare services and so the department stands only as a focal point/liaison between the agencies and the government. And most of the agencies need to provide the services under the name of the department of social welfare. On conclusion, it is difficult to identify what is the social welfare model of Myanmar currently. But the country is in the transition stage from military junta to the multi-party election in the year 2010. And the general constitution is already drawn but still specific policies and rules will set up in the next newly elected government. So, we all hope that there will be a proper model for Myanmar social welfare in the hand of new government. Dolgoff, R., Feldstein, D. ((2007). Understanding Social Welfare: A Search for Justice (7th ed.). Boston: Allyn Bacon. Dolgoff, R., Feldstein, D., Skolnik, L. (1997). Examining a social welfare program: Structural components, alternative program characteristics, and evaluation (4th ed.). New York: Longman. NASW. (1971). Encyclopedia of Social Work (Vol. II). YCDC. (2003). Ministry of Social Welfare, Relief and Resettlement.

Friday, September 20, 2019

Role of Genetics in Myopia

Role of Genetics in Myopia Myopia, also known as short-sightedness, is a refractive error defined as an optical condition where parallel light rays entering the eye are focussed before the retina, resulting in a blurred image. Optical correction of this refractive error can be done with spectacles, contact lenses and surgical procedures such as photorefractive keratectomy. People with myopia are usually classified into two groups, low to moderate myopia (0.00D to -6.00D) or high/pathological myopia (greater than -6.00D). High myopia is also known as pathological myopia because it is often associated with sight threatening ocular conditions such as retinal detachment, macular degeneration, and glaucoma (Fredrick, 2002). Also systemic findings of many genetic syndromes such as Marfan and Stickler syndromes have myopia as consistent feature (Terri et al., 2004). Throughout the world myopia is a common cause for visual disability particularly in underdeveloped countries where the health care is poor or even non-existent. Myopia currently affects over 1.5 billion worldwide and this  is expected to increase to approximately 2.5 billion by the year 2020 (Dirani et al., 2006a). Prevalence varies between countries and ethnicities, reaching as high as 9 out of 10 people affected in some Asian populations such as Singapore and China (Chow et al., 1990; Wong et al., 2000). Epidemiological studies show that the prevalence of myopia is increasing and this is becoming a significant public health problem (Fredrick, 2002; Paluru et al., 2003; Saw et al., 1996). As well as needing resources for optical correction of myopia, the associated increased risk of vision loss has further economic and social implications for the population. Therefore extensive research is being carried out to understand the mechanisms and factors underlying myopia development in aim to reduce the incidence of myopia. An emmetropic eye is one that has zero or negligible refractive error. Most babies are born hypermetropic (long-sighted) and emmetropisation is the process by which the eye goes through changes to reach emmetropia, this occurs within the first 5-8 years of life (Fredrick, 2002). The simple reason for the increasing prevalence of myopia may be due to changes in environment, especially modernisation of the underdeveloped world which is partly due to improved education infrastructure and the technological/internet revolution. This means people are now using their eyes for near tasks such as computing much more than before. Therefore this near visual experience may have some influence in the emmetropisation process, resulting in the eyes becoming myopic instead of emmetropic. However there are many studies, such as twin and family history studies that have also found a strong positive correlation between genetics and myopia (Hammond et al., 2001). Other studies have mapped particular gen es that influence the onset of myopia or predispose an individual to becoming myopic. It seems there is some interaction between environment and genetics and how they influence the onset and progression of myopia but the relative contribution of each is not fully understood (Saw et al., 1996). Identifying potential myopia disease genes will help us understand the pathophysiological mechanisms behind myopia development. The potential for this in the future would be the ability to identify individuals at risk from myopia and help develop preventative therapies (Tang et al., 2008). This dissertation will aim to explore the role of genetics in myopia and review the current genes that have been identified to be associated with myopia. There are multiple ways to help identify genes associated with myopia, and researchers often employ a combination of techniques to further validate their findings. Genes are identified using genetic markers and genetic mapping techniques, these are explained further below. Genetic markers A genetic marker is a gene or DNA sequence with a known location on a chromosome. It is usually described as a variation, which may be due to mutation or alteration in the genomic loci. This variation is what helps researchers identify genes associated with a particular trait like myopia. Genetic markers can be short DNA sequences, such as single nucleotide polymorphism (SNP), or long sequences such as microsatellites. SNPs are polymorphic markers that are variations in the DNA sequence occurring when a single nucleotide in the genome differs between two members of the same species (Warthmann et al., 2007). For example people with myopia will have a common SNP compared to those without. Microsatellites are short sections of DNA made up of repeating units containing 10-60 base pairs. Although microsatellites may have different or unknown repeating units, the repeating unit within the microsatellite is relatively constant (Dorland, 2007). The number of repeating units varies between individuals in a species i.e. they vary in length and these differences in DNA can be detected via capillary gel electrophoresis (Tang et al., 2008). Microsatellites have a high level of polymorphism that makes them another useful tool to help identify genetic markers. Genetic maps are made up of many microsatellites with known positions; this allows genes to be located relative to the microsatellites. Genetic mapping The aim of genetic mapping is to assign DNA fragments to chromosomes, which eventually accumulates to a complete genetic map for a condition. There are two methods for genetic mapping; linkage analysis and association study (Tang et al., 2008). Each method has its own advantages that help overcome different situations. Linkage analysis Linkage analysis is based on the link between loci (locations of genes). If two loci are inherited together on the same chromosome then they are said to be linked. Meiosis results in genes being recombined from parent chromosomes into a new combination in the offspring and this crossing over of DNA can cause alleles previously on the same chromosome to be separated. Therefore if two loci are closer together, the possibility of them being inherited together is greater i.e. there is a reduced chance of alleles being separated and therefore the offspring is more likely to inherit parental traits. Linkage studies aim to uncover genetic markers that are linked to disease genes with the potential to identify other genes as possible disease gene candidates (Terri et al., 2004). Association studies (FIND BOOK REF) An association study is another route to help identify susceptibility genes when studying a multifactorial disease like myopia. Association studies are different from linkage studies in that a common allele is associated with the disease where as linkage study allows different alleles to be associated with the disease in different families (Cordell et al., 2005). There are two separate approaches that an association study can take, it can either be population-based or family based. The main aim is to compare DNA samples from affected individuals against non-affected individuals similar to case-control studies. If the findings show a common allele in the affected individuals that is not found in the controls then it can be assumed that this allele is positively associated with a specific disease (Zhang et al., 2010). Population-based association studies take a sample of people from the population and compares genetic markers between affected individuals (cases) and unaffected individuals (controls). The two groups must be unrelated (no blood relation) although the human population does share common ancestry and so it can be argued that the wider population is just an extended family (Tang et al., 2008; Cordell et al., 2005). Small genetic differences can be detected for complex traits using population-based studies and this can produce powerful results but there may be a confounding effect due to population stratification. Therefore a careful selection of cases and controls is required for a good quality association study. Family-based association studies involve nuclear families consisting of affected offspring and their parents. It is presumed that the non-transmitted alleles from the parents act as internal controls and the transmitted alleles act as the cases. This means family-based studies eliminate any mismatching between cases and controls, therefore avoiding any chance association due to population stratification (Tang et al., 2008). GENETIC INFLUENCE ON MYOPIA Many studies have been conducted to help identify the exact role of genetics in myopia onset and progression. As myopia seems to be multifactorial, twin and family studies are performed to help differentiate between the genetic influence and other factors such as an environmental influence. Twin studies There are two types of twin pairs; monozygotic and dizygotic. Identical twins are known as monozygotic i.e. they originated from the same fertilised ovum, where as dyzgotic twins originate from two separately fertilised eggs therefore their DNA is not identical. In 2001 a classic twin study was performed by Hammond et al. using 226 monozygotic and 280 dizygotic twin pairs from the UK, all female and aged between 49 and 19 years old. The study looked at heritability values of refractive error and found a much higher correlation in monozygotic twins compared to dizygotic twins; this can be seen in fig 1. This suggests there is a strong genetic influence when inheriting refractive error since monozygotic twins have identical DNA and dyzogitc twins only share up to half their DNA. However heritability is population specific, and if this study was repeated for another population sample with a different gene pool or environment then similar results may not be seen (Hammond et al., 2001). A more recent study carried out by Dirani et al. in 2006 was composed of 345 monozygotic and 267 dizygotic twin pairs aged between 18 and 88 years old. Twins were recruited from Australia both male and female. Again the study found similar results to above; a significantly higher correlation was found in the monozygotic than the dzygotic twin pairs. The study found that the high heritability can explained by additive and dominant genetic effects which suggests there are multiple genes involved in the aetiology of myopia (Dirani et al., 2006b). Many other twin studies have also reported on the importance of genetic factors in myopia (Teikari et al., 1980; Hu, D., 1981; Miller, E. M., 1995; Dirani et al., 2008). This leads one to conclude that genetics plays an important role in myopia development. However twin studies do rely on a common assumption that all twins share a similar environment (Dirani et al., 2006a). This way the studies performed can assume all results are are relative with no significant environmental discrepency i.e. there is no confounding effect as long as the assumption holds true. Although twin studies show good evidence of genetics influencing myopia, some argue they do not apply to the singleton population as twin studies rely on contestable assumptions (Hammond et al., 2001; Morgan et al., 2005). An alternative approach to studying the genetic influence is to conduct a familial study. Familial studies Familial studies concentrate on the heritability value of a condition being passed on from parents to their offspring. If there is a family history of particular condition then there is a greater probability that the children will inherit the same condition. For myopia, there is a higher risk of the children developing the condition if one or both parents have myopia compared to children without myopic parents (Zadnik et al., 1994). A study surveying 2888 children in China and Hong Kong found the prevalence of myopia to be 7.3% if neither parent was myopic, 26.2% if one parent was myopic and 45% if both parents were myopic, reinforcing the view of a strong genetic influence in myopia (Yap et al., 1993). Although this seems like a genetic predisposition to myopia, there is a possible confounding effect since family members not only share common genes but also share a similar environment (Morgan et al., 2005; Sperduto et al., 1996). Therefore when comparing families careful selection should be made to ensure a large difference in environmental circumstances does not exist between the families. If there is a difference in the environment then this should be factored into the results. Familial studies suggest that a gene-environment interaction exists but this conclusion must be used with an open-mind since parental myopia history can denote a genetic marker, a common lifestyle, or both (Saw at al., 2001; Young et al., 2007). Mendelian inheritance The classic Mendelian inheritance model has laws that state the inheritance of traits is linked to single genes on chromosomes in the nucleus. There are four modes of Mendelian inheritance; autosomal dominant, autosomal recessive, X-linked dominant and X-linked recessive (Book ReF). There are genetic differences between forms of high myopia and low myopia (Olmedo et al., 1992; Pintado et al., 1992). Some studies have found a Mendelian inheritance pattern for myopia, particularly for dominantly inherited simple high myopia (Guggenheim et al., 2000). Young et al. found an autosomal dominant pattern of inheritance identifying two loci for high myopia (Young et al., 1998a; Young et al., 1998b). A recent family-based study consisting of 162 Chinese nuclear families found an association and linkage between the myocilin gene (MYOC) polymorphisms and high myopia (Tang et al., 2007). Many other genetic linkage studies dealing with familial high myopia have also identified myopia loci with an autosomal dominant mode of inheritance (Naiglin et al., 2002; Paluru et al., 2003; Paluru et al., 2005; Zhang et al., 2005; Nallasamy et al., 2007). However, similar studies have also found that myopia is likely to be influenced by multiple genes (Hammond et al., 2004; Wojciechowski et al., 2006) and other factors like environment (Morgan et al., 2005). This concept of a multifactorial disorder suggests that myopia does not conform to a single-gene Mendelian inheritance model (Ashton, 1985; Klein et al., 2005; Young et al., 2007). Therefore Mendelian inheritance patterns may only apply to simple high myopia i.e. low myopia and some forms of high myopia are comlex traits that do not conform to a Mendelian inheritance model. Complex trait myopia Myopia can be expressed as part of a syndrome, rarely as a monogenic form (typically high myopia) or most commonly as a complex disorder (Tang et al., 2008). A complex trait results from the interaction of multiple factors, each of which has a relatively small effect. Family studies show that myopia is more prevalent with a positive family history but it is not a single-gene defect and there may be an environmental influence. This multi-factorial inheritance suggests that the disorder is only expressed if a critical number of genes are inherited independently, and accompanied with an environmental influence i.e. near-work (Saw et al., 1996; Young et al., 2007). Many low myopia loci have also been mapped using linkage analysis (Hammond et al., 2004; Wojciechowski et al., 2006; Klein et al., 2007). However, the genes influencing myopia onset and progression are still not fully understood and research has continued to help identify potential candidate genes that may have a critical role in myopia development. Susceptibility genes Many genes are involved in eye development processes such as emmetropisation, and some of these have been suggested as candidate genes that make an individual more susceptible to develop myopia. PAX6 The PAX6 gene is part of the Pax family that are transcriptional regulators and have an important role in the developing eye. Mutations in the PAX6 gene have been implicated for the development of serious ocular conditions such as aniridia and congenital cataracts (Glaser et al., 1994; Hever et al., 2006). Varying the dosage of PAX6 gene in transgenic mice has been proved to influence eye size (Schedl et al., 1996). Therefore it is thought that polymorphisms in the PAX6 gene may be associated with developing a refractive error in humans. Hammond et al. (2004) carried out a genomewide scan of 221 dyzygotic twins and found 5 SNPs with strong linkage to the PAX6 gene but no associtaion, suggesting that PAX6 may influence myopia development. Another study perfomed by Simpson et al. (2007) used 25 tag SNPs, which covered the PAX6 gene, and found no association between PAX6 and refractive error. However, more recent studies have suggested there is an association between the PAX6 gene and high myopia (Tsai et al., 2008; Han et al., 2009). It seems an association may exist but due to the lack of evidence further investigation is required to fully understand the potential influence of the PAX6 gene in myopia development. TGIF The transforming growth ÃŽ ²-induced factor (TGIF) gene functions as a transcriptional repressor. Mutations in TGIF have been identfied in patients with holoprosencephaly; a common congenital forebrain development defect (Satoh et al., 2008). Young et al. (1998) identified MYP2 locus on chromosome 18p11.31 to be associated with autosomal dominant high myopia. The TGIF gene has been mapped to be located within the MYP2 interval and therefore is considered as a candidate gene for MYP2-associated high myopia. However, studies investigating the relationship between TGIF and high myopia have not found any association (Scavello et al., 2004; Hasumi et al., 2006; Wang et al., 2009) Although experimental science has found a strong expression of TGIF in mice during early stages of retinal development (Satoh et al., 2008), the exact role of TGIF in neural development is not fully understood. Further research is required to determine the underlying mechanisms and influence of TGIF in developmental processes. HGF The hepatocyte growth factor (HGF) has been found to be strongly linked to determining the eye size in mice i.e. causing myopia (Zhou et al., 1999). HGF has also been closely associated with biological mechanisms influencing axial myopia such as critical scleral remolding proteinases (Hamasuna et al., 1999; Gong et al., 2003). This makes HGF a potential candidate gene for myopia. A recent family-based study found a positive association between a HGF gene polymorphism and high myopia in the Han Chinese population (Han et al.,2006). However, another study by Wang et al. (2009) found little association between HGF and myopia. It seems many candidate genes have been suggested to be associated with myopia, particularly with high myopia loci, but none of them have been proven to be clearly involved (Scavello et al., 2004; Young, T. L., 2004; Wang et al., 2009). Environmental Influence Normally in humans the eyes develop from neonatal hypermetropia to emmetropia in the early years of life (Fredrick, 2002). However, this same process in animal models can be disrupted by environmental factors. Experimental animal studies have shown that if an image is not allowed to be focussed on the retina, either by suturing eyelids or placing diffusers over the eye, then myopia will develop (Wallman et al., 1978; Raviola et al., 1985; Siegwart et al., 1998). In human infants naturally occuring diseases, such as congenital cataracts and periocular haemangiomas, cause similar vision deprivation. In eyes that are left untreated, axial elongation and myopia develops (Hoyt et al., 1981; Fredrick, 2002), however not all these patients develop myopia (Young et al., 2007). Therefore the emmetropisation process may be sensitive to envronmental factors but it is not solely influenced by them. Myopia prevalence is increasing and becoming a more significant public health problem (Saw et al., 1996; Fredrick, 2002; Paluru et al., 2003). The use-abuse theory suggests that near work causes myopia, therefore people that are highly educated are more like to be myopic than others (Saw et al., 1996). However educational attainment is related to intellect which is strongly influenced by genes, therefore the use-abuse theory should not be solely considered as an environmental factor (Dirani et al., 2008b). Differences in myopia prevalence between the old and new generations also suggest that myopia is more likely to be influenced by environmental changes, such as increased near work like surfing the internet, rather than genetic changes. However, even in these modern times with a high incidence of myopia, there are individuals that do not develop myopia. This supports the theory of influential interaction between genetics and environment factors i.e. some individuals are genetically predisposed that makes them more susceptible to develop myopia due to environmental risk factors, such as near work (Lyhne et al., 2001). Gene-environment interaction In this theory it is assumed that myopia results from both genetic and environmental factors. This means that in the parental generation, those that have myopia genes may not develop myopia due to lack of exposure to environmental risk factors and those that have no myopia genes but are exposed to the environmental risk may become myopic. Therefore this makes it very difficult to study the potential impact of this theory, particularly where there are large changes in the environment and prevalence of myopia between old and new generations (Morgan et al., 2005). Saw et al. (2001) found that although a gene-environment interaction may exist for myopia, the association between near work and myopia is different for children with no, one or two myopic parents. The study found that children can be classified as high or low-risk depending on if parental myopia exists e.g. those with two myopic parents and high environmental exposure have a significatntly higher chance of developing myopia compared to those on the opposite scale. However, it is not known whether family history is a factor due mainly to inheritance or to common lifestyle, nor is it known how inheritance might interact with nearwork (Goss, 2000). In 2001 Lyhne et al. performed a study to investigate the genetic and environmental impact on myopia. The study found a strong heritability value for myopia but no significant environmental impact. Other studies have also explored the complex gene-environment theory but have not found any conclusive results (Zadnik et al., 1994; Saw et al., 2001). Many studies looking at the potential interaction between genes and environment use a classic quantitative method to analyse their results. This method does not take into account the potential influence of gene-environment interactions. Therefore to get a true quantitative estimation of interaction the model needs to include a very large population sample with reliable information on early life environmental encounters, such as study habits (Lyhne et al., 2001). However, the environment may have a significant influence, especially when you compare the increasing prevalence of myopia with the modern world where there is better educational, increasing computer usage and mobile phones etc. The gene-environment interaction theory needs to be investigated further to help understand the relative influence of individual factors and how they work together. DISCUSSION It is generally accepted that myopia is a complex disease and its increasing prevalence is becoming a more significant public health problem; there is the social impact of visual disability and economic impact of treatment costs. This has instigated many research projects to help identify underlying mechanisms influencing myopia onset and progression. Current mapping techniques include linkage-analysis and association studies Credibility of  Mapping Techniques Each has its own advantages and researchers tend to use a combination of mapping techniques to help identify myopia loci and study potential disease genes. Many myopia loci have been identified and candidate genes have been suggested, but no specific genes have been identified to cause myopia. Results from family studies and twin studies have suggested there is a strong genetic influence in myopia development. However, the genes involved in complex or multi-factorial diseases are difficult to identify and their influence may be affected by unrelated genes and environment (Young, 2004). Therefore when selecting samples for studies care needs to be taken to ensure any discrepancies are kept to a minimum and taken into account when interpreting results. Other factors such as environment have also been implicated in the development of myopia, especially when looking at results from animal studies. The main environmental risk factor is considered to be increasing near work but there are possibly other environmental aspects to also consider such as personality, social and cultural factors. Understanding each factor in association to myopia will help further understand the environmental influence and the extent of interaction between genes and environment. This gives rise to the gene-environment theory which is very difficult to study. This is because myopia is a complex disease where several different influential factors may need to be taken into consideration when performing a study. Again much more investigative research is required to understand and add substance to this theory. In 2003 the 13-year Human Genome Project was completed and identified approximately all the genes in the human DNA. Currently analysis of the data is continuing through many research projects. Further advancements in genetic research and technology will definitely benefit the human population and hopefully ongoing research will eventually give us a much better insight into the underlying mechanisms of myopia development. This will in turn help determine the relative influence between genetics and environment, and eventually help develop better therapies to manage myopia.

Thursday, September 19, 2019

Language in Animal Farm :: Animal Farm Essays

Language is a very powerful tool. It is a means of basic communication, and has been around for centuries. Just like any other tool, language can be powerful in a positive or negative way, and can either work to one's advantage or can result in negative effects. Certain words can touch a certain chord inside someone, so they can be easily influenced by the language. A good example of this is George Orwell's Animal Farm, a fable in which a multitude of gullible animals are exploited by a group of power mongering pigs. Words can appeal to a persons basic needs and desires and conjure up hope or even fear in his or her mind. These emotions can be manipulated by others to their own advantage, and clever use of language can be used to cheat, deceive, spread rumors. In Animal Farm, Orwell shows how the pig's use of influential language manipulates and enslaves the animals. Through use of language, the pigs appeal to the animals basic hopes and desires of a better life and a better future. They make others work extremely hard, while they themselves rest and unfairly reap most of the benefits of the work. For example, â€Å"Now comrades,... to the hayfield! Let us make it a point of honor get in the harvest more quickly than Jones and his men do.† Later in chapter three, Squealer is sent to justify the pigs selfishness and to convince the animals that the pigs are working in their favor. He said, â€Å"You do not imagine, I hope, that we pigs are doing this in a spirit of selfishness and privilege? Many of us actually dislike milk and apples...Milk and apples contain substances absolutely necessary to the well-being of a pig...the whole management and organization of this farm depend on us.† This how the animals are persuaded to believe almost anything without question. Words that appeal to our fears make us feel vulnerable, and when we feel vulnerable, we are ready to do just about anything to make us feel invulnerable again. In Animal Farm, the animals feel very insecure deep down, but they also are gullible and they do not wish to go against the pigs. For example, Squealer tells them â€Å"Do you know what would happen if we pigs failed in our duty?

Wednesday, September 18, 2019

Moving as a Child Essay -- Personal Narrative Moving Essays

Moving as a Child Some things in life are just meant to happen. Fate brought me to the seat I am sitting at, in this university, miles and miles from where I was born. I never thought I would move. The idea was inconceivable for an eight-year-old girl. Life was an endless cycle of days spent chasing butterflies, catching ladybugs, and blowing apart dandelions while nights were full of stars, crickets, and peace. I have learned since that moment that fate has a different idea in mind, one of its very own, and sometimes, no matter how much we struggle, no matter how much we cry out in resistance, we must all give way to the pull of the chains, and let fate have its way. One day, or what better describes it, one moment, all those butterflies and all the stars disappeared. My Mother’s job was moving us to Texas. Fate decided it was time for me to grow up and these objects I loved so much were toys that would interfere with learning. So fate took them away, and in their place I was handed Texas. Now, to hand an eight-year-old something like Texas, especially when she had possessed Oklahoma, is like taking the crown jewels from the royals and giving them cubic-zirconium. It just didn’t work. At the first hint of moving I'll admit that I was excited. The imagination of a little girl can run wild with possibilities when she is catapulted into the sky of the unknown. I do believe I was launched further and higher than any of my family ever expected. At that realization, reality decided to intervene and spin me around the dance floor. I was quickly pulled out of my school in the middle of fourth grade; torn from friends I'd had m y entire, though short, life. Gone in a snap was everything I'd ever known to be... ...hich make up a strong individual. All those butterflies I spent my childhood chasing became trapped inside my stomach but, rather than set them free, I made them apart of me. I made myself meet new people, become outgoing and involved. I have more friends than I could ever ask for, two of which will still be there when I am old and grey. What more could a person ever ask for? I feel privileged to have moved as a child. I am honored fate chose me to drag along on its wild and unseen journeys. Life is not about being in the moment; it is about taking those moments and making them apart of who you are. A part of me will always be that little girl chasing butterflies but, I'll also be the strong woman who will stand up for what she believes in and for those that she loves. I owe that part of me to the spontaneity of fate when it came pulling my chains.

Tuesday, September 17, 2019

Salary Is the Most Important Factor in Motivating Employees

Salary is the most important factor in motivating employees Motivation plays a significant part in a company in the modern society because only if employees are motivated can they be more productive. In a company, managers usually take measures such as pay increase and promotion to motivate workers. In the past decade, there have been a large number of surveys on factors that motivate employees to perform their best (Wiley 1997). Some experts state that salary is the most important factor in motivating employees. However, others believe that factors such as responsibility and job security are of vital importance.This essay will argue that salary is not the most important factor in motivating workers and discuss what the foremost factors are. First, it will give evidence to show that salary is not the most important. Then, it will explain what are the most important in motivating employees. After that, it will discuss the importance of salary. Finally, a conclusion will be given at th e end of the essay. The reason why salary is not the most important motivation is that companies usually link workers’ salaries with their productive results, which gives employees less opportunities and limits their development (The Times 100 2010).If workers want to gain more wages, they will work only for the products and become workaholic automatons. Another point is that if pay is considered as the reward of productive results, it is difficult to guarantee equity. Then, employees may be dissatisfied to companies and become less productive. Furthermore, as people value respect and participation, pay is not so foremost and it is important to satisfy people’s spiritual needs. For example, according to McGregor’s Theory X and Theory Y, responsibility is of vital importance in motivating employees and if managers delegate responsibility to workers, they will be more motivated.Another theory, theory Z, suggests that participation could increase job satisfaction ( Madura 2008). In addition, people want all their internal and external needs to be satisfied and salary is only a small part to meet their basic need. Even companies can provide satisfying pay; workers may be still unwell to work with all their heart. Therefore, salary is not the most important factor in motivating employees and there are non-financial factors that are more important than salary. Despite the fact that salary-system is an important part in modern enterprise system, it does not mean that pay is the most important factor.According to a surprising scientific experiment of motivation, people who gain bonuses and commissions spend more time in solving a problem, which suggests that people become inefficient (Pink 2009). In some companies, employees still choose to resign even though they have a high salary. This is because they have no job security in the company. Job security can be defined as the confidence that they can keep their jobs. People who have job security can perform seriously as a result of concern about finding a more secure employment (Madura 2008).Moreover, workers with a low salary may also work efficiently because they can gain a sense of identity. When employees contribute to companies and gain recognition, they usually work harder than before as the result of a sense of achievement. In addition, people who have high salaries are faced with more pressure because they should work more and perform better than those who have low salaries. Pay increases are on behalf of the increase of responsibility. Thus, employees who have poor pressure coping would rather choose a satisfied job with low pay than work hard with high salaries.It follows that salary is not the most important factor in motivating employees because career will be hard when they are offered with high salaries. Based on the analysis of why salary is not the most important motivation, the next part of this essay will explain what the foremost factors are in motivating em ployees. Firstly, recognition and appreciation for work done is often a top motivator, which require feedback to provide reinforcement for positive behaviour. As a result, manager’s positive feedback to workers is a significant form of motivation (Wiley 1997).Secondly, responsibility can also be the most important motivation. The responsibility to family requires people to work hard so that they can support their family and performing duties to a company is the best method of gaining appreciation. Furthermore, participation can be another foremost factor in motivating employees. When workers participate in corporate decision, they may be more productive in consideration of their own benefits. Finally, promotion and career development in a company are also of vital importance. For example, irms usually offer more opportunities to workers with the growth of the firm so that most employees can promote rapidly (Jackson & Bak, 1998). As a consequence, companies can take non-financ ial measures such as positive feedback and promotion to encourage employees to work hard. Although salary is not the most important factor in motivating employees, companies still cannot ignore the importance of salary because satisfying wages have been proved efficient to motivate workers for long time. For example, Taylor put forward the first motivation theory in 1911 and the research pointed that people worked only for money (The Times 100 2010).As a result, pay increases are popular in almost all companies. Thus, it can be seen that salary can motivate people to become more productive. In addition, outstanding workers want their pay increase connected with great work instead of simply increase with ordinary people. Otherwise, these outstanding employees will be disheartened and lose the motivation of work because they realized that the reward they gain is as identical as other workers who spend less time and energy in spite of how hard they work (Gioia, 2009).In consequence, if a company want to motivate employees by salary system, it must be equal to each person so as to motivate every workers to improve efficiency. In conclusion, it is the core subject in modern company theory research that a company can motivate employees efficiently and salary is not the most important factor in motivating workers because there are a large number of non-financial factors that are more important than salary.Responsibility forces employees to work hard and they can gain a sense of identify because of participations. Job security is a motivator of increasing importance and managers’ positive feedback such as promotion opportunities and praise would also motivate employees. A successful company is one that establishes different motivating systems for different people to encourage them to be more productive. Therefore, companies should focus more on these non-financial factors instead of only paying attention to pay increases.References: Gioia, C. (2009) Motivating employees: Is money or recognition more appreciated? Available from: http://www. helium. com/debates/137270-motivating-employees-is-money-or-recognition-more-appreciated/side_by_side. (Accessed 29 November 2012). Jackson T. and Bak M. (1998) ‘Foreign companies and Chinese workers: employee motivation in the People's Republic of China’, Journal of Organizational Change Management, 11(4), pp. 282 – 300. Madura, J. (2008) Introduction to Business. 4th ed. Beijing: Post ; Telecom Press.Pink, D. (2009) Dan Pink on the surprising science of motivation [online video] Available from: http://www. ted. com/talks/dan_pink_on_motivation. html. (Accessed 23 October 2012). The Times 100 (2010) Motivational Theory in Practice at Tesco. Available from: http://www. thetimes100. co. uk/download-tesco-edition-15-full-case-study_132_396_1168 (Accessed 23 October 2012). Wiley, C. (1997) ‘What motivates employees according to over 40 years of motivation surveys’, Internat ional Journal of Manpower, 18(3), pp. 263-280.

Monday, September 16, 2019

Using Fun Activities to Improve Speaking Skill

by : enisa cahya . [email  protected] com Using Fun Activities to Improve speaking skill for senior high school learners There are many definition of speaking. Speaking is one of the skills that have to be mastered by students in learning English. It is important for students to known definition first. Many experts define speaking in different ways. Brown and Yule (1989) stated in their book. The speakers say words to the listener not only to express what in her mind but also to express what he needs whether information service.Most people might spend of  their everyday life in communicating with other. According to Syafrudin (2001) speaking is as active productive skill makes us of oral communication. Finocchiro and Bonomo (2001) stated that speaking as one or more sound make by human being for purposing of  communication. Beside, Chaney in Alfira (1998) says that speaking is the process of building and sharing meaning. So, the student should have capability in telling their i deas about some  problems or some things.The goal of speaking is to improve students ¶ communicative skill. By telling their ideas, the students can improve their speaking ability and increase their confidence. Mc. Donough and shaw (1993) says speaking is the ways to express ideas and opinion, expressing and desire to do something, negotiating or solving a particular problem, and maintaining social relationship and friendship. Long and Richard ( 1982 ) says speaking is a complex set of ability that involve many component, including pronunciations, listening and grammar skill.From the explanation above it can conducted that speaking is very important to communicated with others to take and give information learning language speaking skill should  be taught and practiced in the classroom event in real life situation, in order to an able our  students to communicate effectively and accurately by using component such as vocabulary and  pronunciation, fluency and basic grammati cal pattern. Video is one of the technological aids that use in the classroom nowadays.Video is an extremely use media which incorporates a wide variety at visual element and a great range of  audio experiences in additional to spoken language based on speaking descriptive text. Sane (2009) stated that video is the technology to capture, record, and process, transmit and rearrange the moving picture also video can use for tutorials, videos for learning, and even videos for  entertainment or for documentation of activities. It means in teaching English language we can use video to make students not bored and like to study English language.To improve the students speaking ability, it needs innovation and creation to motivate them while learning speaking skill. Therefore, the teachers need to prepare the material, for example the teacher commands the students to prepare a dialogue based on a video that has been watched. Teaching speaking to the students needs innovation and creatio n to motivate them while learning speaking. One way that can be used by the teacher is by using media especially video. The advantages of teaching speaking by using video are to create enjoy and fun atmosphere in teaching learning process.These media are really useful and helpful for the student. Besides, video are also used to motivate the students in learning English. Teaching by using video is used to give variety in explaining material. Like Stempleski (1987) that said video can be used in a variety of instructional setting such as in classroom and in self study and evaluation situation. Every person will have different to describe same video. It will motivate them to have an opportunity to tell what they see about the video. There are another ways to teach English besides Video, games also appropriate to improve speaking skill for students.There are many reasons a teacher uses games in teaching speaking. Games give students chance to use English orally, it means that students c an  practice and develop their ability to speak English. Games provide fun and relax while remaining very much within the framework of language learning. It is expected for shy or slow learners can be active participants to show their ability and find their confidence in communicating in the foreign language. Games are not just time filling activities in the class, but also have a great educational value. W. R.Lee (in Uberman,2002) holds that most language games make learners use the language instantly without thinking about the correct form of the language itself. So at this phase, the language games can lower students’ anxiety in using the target language, they are also highly motivating and entertaining so that the shy students will get more opportunities to express their opinion and feeling. Further suppport comes from Zdybiewska (as cited in Uberman,2002), she believes that games can be a good way in practicing the target language that being learned by the children, si nce they are able to provide a model of language on what the earners will use in the real life According to Betteridge and Buckby (1990), â€Å"Essentially, in guessing and speculating games, some one knows something and the others must find out what it is. † In addition, Merriem Webster (1986) said that â€Å"Guessing games is game in which the participates compete individually or team in the identification of something indicate obscurely (as in riddles or charades). Based on the definition, it can be conclude that guessing games is a game in which a person or participant knows something and competes individually or in a team to identify or to find out it.There are many concepts of guessing games, which can be applied in teaching speaking. According to Richard – Amato (1988), â€Å"Guessing games can be used to develop or reinforce concept, to add diversion to regular activities, or just to break the ice. However, their must important function is to give practice in communication. † It says that guessing games give students do not feel bored during learning process. Nevertheless, the most important thing is to give the students in practicing their English. Based on the statement above, we can conclude that guessing games give students more chance in formulating question.But we know that language classes are spent answering questions puts forth by the teacher or text book. This idea is also supported by Silver (1980) : â€Å"Language classes are often inadvertently structured so that most of the students speaking time is spent answering questions put forth by teacher or text book: as a result the students often have difficultly in forming own question. So, by using this game students are asked to practice in formulating questions. Here the students can apply their ability in using question – word (WH) question.