Assignment Example | Topics and Well Written Essays - 500 words - 1

Assignment Example This means that the test subjects wont necessarily be representative of the population. Random assignment means assigning test subjects to different treatments in the study. Randomization is the best way of making sure that the necessary control in the study is present. They are related to both internal and external validities as they increase both. Internal validity is the validity of the effect discovered in the study, and external validity is the validity in which the cause-effect relationship holds up when measurements are changed. The randomization increases both validities. a. Threats to the validity of the research about the two school groups include the fact that the number of students in each group isnt specified, and if it isnt above 30- the research isnt valid since at least 30 test subjects are needed to conduct a test on statistical hypotheses (even more according to different, more rigid approaches). A way to increase the external validity in this subject is to increase the number of test subjects in each group as much as possible, so that the results are as accurate and representative as possible, and also in order for them to be at least over 30, which is the agreed upon number of test subjects needed in a group in order to be able to test the validity of hypotheses. b. The threat to the validity of the study is mainly that the teacher had a pretest and a posttest for classes A and B while only having the posttest for classes C and D. it is impossible to deduce from this that the former classes are superior to the latter ones because of the introduction of the new materials and methods. She should have done both tests on all classes. Furthermore, there is a need to control possible intervening variables to make sure that there is a statistical link between these new materials and methods to the score achieved in the post test (the link can be a correlation and then it wouldnt be legitimate

International Information and E-Business Strategies Assignment

International Information and E-Business Strategies - Assignment Example In fact, the e-supply chain involves the integration or mixing of e-billing systems, e-procurement systems, and other tools related to e-business. It allows for the enhancement of the company, distributors, and suppliers’ ability to manage their specifications, costs, quantity, and delivery time of products with more productivity automatically. E-SCM is a business process driven by software, in which there is collaboration between suppliers and retailers to give the end customer the best value, as well as to reduce costs (Aka?Li 2011, p. 55). Advanced software solutions and the internet enhance SCM partnering benefits where, through SCM collaboration, the suppliers are able to access retailer logistics and inventory data to meet inventory demands and respond to customized orders efficiently. By developing and using E-SCM, Coimbra Company will have the ability to co-ordinate warehousing and delivery, and improve their reliability and speed to their distributors and improving co mpetitive advantage (Weele 2010, p. 83). By deciding on the development and building of a platform for e-commerce, Coimbra Company has been building on its B2B and B2C platforms. During the period that Coimbra will build its B2C platform, it will apply e-commerce in its discount stores, specialty stores, and supermarkets. B2B e-supply chain management will also be built step by step and will become the keystone in the development of e-supply chain management development in the future. Coimbra will use some strategies in its implementation of e-supply chain management, for example, through ensuring it has good relationships with suppliers and customers with the latter being covered through CRM. Through... By developing and using E-SCM, Coimbra Company will have the ability to co-ordinate warehousing and delivery, and improve their reliability and speed to their distributors and improving competitive advantage (Weele 2010, p. 83). By deciding on the development and building of a platform for e-commerce, Coimbra Company has been building on its B2B and B2C platforms. During the period that Coimbra will build its B2C platform, it will apply e-commerce in its discount stores, specialty stores, and supermarkets. B2B e-supply chain management will also be built step by step and will become the keystone in the development of e-supply chain management development in the future. Coimbra will use some strategies in its implementation of e-supply chain management, for example, through ensuring it has good relationships with suppliers and customers with the latter being covered through CRM. Through the application of advanced technologies into their IT management, in which all members of their ch ain of supply can acquire the most recent raw data to enable them to co-ordinate plans, while also offering timely information that will better satisfy the demands from their partners.  By sharing information through their e-SCM with their trade partners, Coimbra and their partners can depend on one another and allows them to be more cooperative and collaborative. By integrating their supply chain and customer relationship management, Coimbra can offer gifts to customers and adjust advice and complaints in a timely fashion.

Gantt chart Essay Example for Free

Gantt chart Essay The phenomena of calendar effects in stock markets seem to be a center of curiosity for many researchers across the world. Following many studies about the significance of calendar anomalies, testing the presence of Monday effect and January effect appears to be an area of interest. The aim of this study is to discuss about calendar anomalies and its significance. It should be noted that the study will focus mainly on Monday effect and January effect on the stock returns of companies listed on SEM-7. The research proposal will consist mainly of the literature review part and the methodology part. 2.LITERATURE REVIEW 2.1DEFINITON OF BASIC CONCEPTS Calendar anomalies are effects which include apparently different behavior of stock markets on different days of the week, month and year. Calendar effect may also be defined as a collection of theories that state that certain days or month are subject to above price changes in stock market and can therefore represent good or bad times to invest. Brooks and Persand (2001) defined calendar effects as the tendency of stock returns â€Å"to display systematic patterns at certain times of the day, week, month or year †. As mentioned above, the study will discuss mainly on Monday effect and January effect. The day of the week effect also called Monday effect indicates that the average daily return of the market is not the same for all days of the week as we would expect on basis of Efficient Market theory. Monday effect is a theory which states that return of the last trading day is the highest and return on the first trading day is the lowest across the days of the week. January effect is a phenomenon whereby stocks claim higher rates of returns during January compared to any other month. Smaller stocks tend to beat bigger stocks during this period. The January effect also known as â€Å"year-end effect† indicates rise in price during the period starting on the last day of December and ending on the fifth trading day of January . The Stock Exchange of Mauritius was incorporated in Mauritius on March 30, 1989 as a private limited company responsible for the operation and promotion of an efficient and regulated securities market in Mauritius. The SEM operates two markets namely the official market and the Development Enterprise Market (DEM). The study will focus only on the official market. On 31 March 1998, the Stock Exchange of Mauritius launched the index SEM-7, comprising companies listed on its official market. The SEM-7 comprises the seven largest qualified companies of the official market measured in terms of market capitalization, liquidity and investibility criteria. Therefore, the study will be based on the 7 companies in the SEM-7. 2.2Theoretical Explanation on Calendar effects EFFICIENT MARKET THEORY The growing number of studies proving the significance of calendar anomalies has led to doubts on â€Å"Efficient Market Hypothesis†. According to Fama (1970), â€Å"a capital market is efficient if all the information set is fully reflected in securities prices†. Efficient market hypothesis is one of the theories which states that, in whichever form, all the information is completely integrated in the share prices and therefore no one can beat the market. There are three form of market efficiency; weak form, semi-strong form and strong form based on set of information. The weak form efficiency states that no one can outperform the market based on past information while in the semi-strong form, despite using public information, the market cannot be beaten. The strong form efficiency states that no one can beat the market despite using past, public and private information. As a result, according to the efficient market theory, the calendar anomalies have no effect on the share prices and that no one can use this anomaly to gain abnormal returns. MONDAY EFFECT As already mentioned above, Monday effect, also known as weekend effect, is a theory according to which returns on Monday is less than the other trading days. Two hypotheses that have been formulated to explain Monday effect are Calendar Time Hypothesis and Trading Time Hypothesis. According to the Calendar Time Hypothesis, Monday’s average return will be different from the other days’ average returns. A reason for this difference is that Monday’s average return will be three times higher than the average returns of the other working days. According to Trading Time Hypothesis, the returns on stock are generated during a transaction. This indicates that average returns will be the same for all weekdays including Monday. JANUARY EFFECT January effect occurs when there is a general rise in stock prices during the month of January. January effect is also known as small firm in January effect because it is most frequently observed in small cap stocks . The nature of this anomaly suggests that the market is not efficient as market efficiency would suggest that this effect would disappear. The theories which explain January effect are: †¢Tax-Loss Selling Hypothesis This hypothesis was first suggested by Branch (1997) . In order to reduce tax liabilities, investors sell their loser stocks in December and create capital losses which they offset with the capital gain. Due to excessive selling of shares in December, stock prices are decreased and then investors purchase it again in early January which forces stock prices to rise. However, it is noteworthy of the fact that since in Mauritius, capital gains is not liable for tax purposes, this hypothesis cannot be used to explain January effect. †¢Window-dressing Hypothesis Some portfolio managers also do window dressing to their portfolio by creating January effect. Since they have to report their portfolio holding as at 31 December, they just sell riskier stocks before 31 December in order to make their portfolio look less risky on Annual Report. Later on, they just purchase the risky securities again in a view to earn high profits. †¢Information Release Hypothesis According to this hypothesis, also known as differential information effect, the excess January returns are the effect of significant information releases that occur in the first few days of January. This hypothesis relies on how discrepancy in the quantity of information available for different companies may result in different returns. According to Rozeff and Kinney (1976), distribution of year-end information may have a greater effect on the prices of small firms’ securities relative to large firms because the market for small firm stock is less efficient . 2.3Empirical evidences on Calendar effects In order to investigate on the existence of calendar anomalies, there have been several studies conducted obtaining different results. In a recent paper by Haug and Hirshcey (2005) on January effect, evidence is found that the anomaly is significant for small cap stocks and continues to be consistent over time . Moreover, Fountas and Segredakis (2002) investigate about the significance of the monthly seasonality in the Amman Stock Exchange and find very significant January effects in this market.

Distributed Denial Of Service DDOS Attack Computer Science Essay

Distributed Denial Of Service DDOS Attack Computer Science Essay Information technology is an exciting and emerging day by day technology which requires communication systems for data and services exchange. As nowadays every services and products uses computer and internet as a medium to interchange data or money in an open internet, hence prone to vulnerabilities. Distributed Denial of Service (DDoS) attack is an attack to the availability of the resources available, so that authenticated users do not use those resources. This paper intended to explore the existing threats and vulnerabilities of DDoS with possible solutions and recommendations plus overview and architecture methodology of this kind of attack. Confidentiality, Integrity and Availability are the three main features of the any computer network communication systems. DDoS which is a subset of Denial of service (DoS) attack, which result in overwhelming the victim machine and deny the services to its legitimate users results in Unavailability of the resources and services for concern clients. Some examples are smurf attack, SYN UDP floods and ping of death. DDoS is a type of DoS attack but uses distributed computers from different location to attack on a particular victim may be a server or client which results into the stopping of its functionality to provide services, hence unavailability of the server ultimately results loss in monetary plus status of the organization. It works by flooding all the network of the given organization with unwanted traffic, the first well known DDoS was identified in 2000 on yahoo.com which goes down to around two hours. The DDoS is a result of weakness of internet which prone to several vulne rabilities as internet was designed only for functionality but not concern about any security. As internet is an open network everything is open and is shared among authenticated users. Another big problem is that it is not centralized network different organization, different countries have their own rules and regulation regarding internet. DDoS Layer Involved The DDoS attack mainly occurs in three layers of the OSI model which are layer 3 (Network) layer 4 (transport) and layer 7 (application). In transport layer what exactly happens is that attacker uses a forged IP address to request for connection so in typical connection, 3 way TCP handshake is done but in this attack it does not complete 3 way handshake but send connection request over and over server reserves resources for each attempt and results in out of connection requires for the legitimate users. In network layer it includes ping of death and ICMP requests, where as in application layer is kind of effective DDoS attack and hard to detect because it passes the 3 way handshake and treated as authenticated user to the concern server, so attacker requests a large amount of data continuously through HTTP and results in avoiding its legitimate users as got busy with those false requests. In DDoS attack a combination of those three layers results in an effective attack that results i n some really drastic effects. Application Layer Presentation Layer Session Layer Transport Layer Network Layer Data link Layer Physical Layer Fig: 1-Layers Involved in DDoS DDoS Architecture The main purpose of DDoS attack is to overwhelm the related server and makes it down, it can be for benefit or for fun only but in both case legitimate clients suffered as bandwidth, resources, memory and CPU got wasted. DDoS attack architecture consists of hierarchy pattern to attack; the four main components of DDoS are as follows: Attacker Master Machines/Handler Zombie Machines Victim First of all attacker scans thousands of computers on the internet independent of the origin of the systems for known vulnerabilities that is which have minimum security aspect on the computer and makes Master machines or handlers, its consists of more than two systems to many depends upon how sophisticated is attack, after making handlers rest scans for the vulnerable systems is done by these handlers, which results in thousands of zombies across the globe without knowledge of concern users and when these zombies are ready attacker can execute for attack and makes the victim down. Attacker Master Machines/Handlers Zombie Machines Victim Fig: 2- DDoS Architecture As seen from the above figure attacker takes control of one or more than one masters which then take control over thousands zombies and when triggered at a specific time these zombies flood the victim. These attack results with the use of some tools (software or malware) which to be install on the masters and zombies so that attacker can take controls through these tools and monopoly the systems. Here above the communication between attacker and master machines is done through TCP protocol whereas between master machines to zombie and zombie machines to victim use UDP protocol for communication, as UDP is unreliable protocol so does not hold any state and results in no trace back, it uses TCP for initial communication because it needs to organize other subordinates with master machines. DDoS Tools The tools used by DDoS attack are very sophisticated as it runs in background or in foreground with the systems program name and is not visible or very hard to detect by administrators. Trin00, tribal flood network, stacheldraht, tribal flood network 2000, trinity, wintrin00, MStream and etc are the examples of such kind of tools used in DDoS attack, by this tools attacker installed and executes accordingly. It also helps him to facilitates co ordination between masters and zombie, and execute timer also to bombards at a fixed time, so that all zombies attacks the victim. Trin00 scans for buffer overflows in systems and install attack shell daemon through remote shell, it communicate through unencrypted UDP. In tribal flood network, it installs the daemon which carries out the multiple attacks like ICMP flood, UDP flood, SYN flood, communication done through ICMP ECHO and REPLY. List of zombies daemon IP address is encrypted in later version of TFN. Stacheldraht uses the combination of trin00 and TFN. Encryption takes place between attacker and masterà ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬Ãƒ ¢Ã¢â‚¬Å¾Ã‚ ¢s communication and attacks are similar to TFN. Trinity floods through UDP, SYN, and ACK through Internet Relay Chat (IRC) has a backdoor program which monitors TCP port. MStream uses forged TCP packets with ACK flag set, it uses TCP and UDP floods with no encryption in between but master machines are kept password protected. Beside these tools various other program and tools are readily available for such kind of attack which leaves no residue to trace back. DDoS Types DDoS are acts differently but mainly classified in two main categories according to their attack pattern which are as follows: Bandwidth Depletion attack Resource Depletion attack In bandwidth depletion attack the main targeted area is the bandwidth of the concern victim by overwhelming with unwanted traffic more than 10 Gbps (It depends) and prevents the legitimate users from gaining access for the services. Some examples of such attacks are UDP flood, ping flood, Smurf and reflection attacks which bombards with unwanted traffic to make unavailability of the services. Whereas in resource depletion attack, the main concern area are the resources available. This attack leads to the out of resource available for the concern users by TCP SYN attack, PUSH ACK attack, Teardrop attack. These attacks through the requests like SYN to the concern server which in return reserves resources for this request, but attacker bombards the same again and again and hence server goes out resources. DDoS Detection The very first question about this attack is that, how to know if DDoS attack happened in any organization or in any machine. So following are some ways to know if it occurs: Performance of CPU, Memory and bandwidth degrades abnormally. Services become unavailable or partially available. Cannot access given resources properly. These above are preliminary steps to know the DDoS attack. It can be monitor through the continuously analyzing of the systems. DDoS Defense Practically speaking it is impossible to prevent DDoS attack but what we can do is to reduce its effect or tries to make security strong as much as possible. The following are very basic defense mechanism against DDoS attacks are: Prevention Detection Classification Justifying Tracing back The first phase called prevention which means to prevent from DDoS attack as much as possible that is to prevent itself to be part of the attack architecture, so not to become handler. It is done through the continuous monitor of the systems but every user is not aware of the security issues. The second phase describes to know that if the systems are under attack by verifying abnormal activities like CPU or bandwidth uses, it can done through firewalls or routers. The third phase is classification of the detected attack according to its prototypes like IP Addresses, protocol used and packet type used; it can be done through the use of Intrusion Detection System for future countermeasure. The fourth mechanism is justifying the detected attack that is how to deal with the known or detected attack one way is to block the whole traffic from those addresses by using access control list on gateways or react accordingly another approach is to trace back the detected packet so that source ca n be identified. The final part of our defense mechanism is trace back which will be covered in later section of this paper. DDoS trace back DDoS trace back is possible to zombies only but may be if done in proper way can leads to the attacker, chances are very rare as it is independent of the location. Some of the methods are as follows: Link Testing Controlled Flooding ICMP Trace back IP Trace back In link testing, when attack is in progress routers can co ordinates with each other to determines which router originated the attack traffic and can trace to the upstream but requires inter ISP co operations as different connections are maintained by different ISP. Whereas in controlled flooding it floods each incoming links of the router to determines the source but needs router co operation and better network map, similarly in ICMP and IP trace back a reverse path is generated to identify the source but path can be long and packet format space is limited to cope. DDoS Security measures As currently various research are going on to stop DDoS attack and it may takes time but DDoS becoming deadly day by day and is considered second in financial losses due to attack after viruses but comparison to virus it is very new and have vast effect with no remedy. So only option we got is to make it harder for attacker to penetrate into the systems, and following are some security precaution we should follow: Install and update continuously antivirus and spyware software from trusted authority and run regularly. Patches the security components of the systems continuously and be always ready for up gradation of systems. A well set network infrastructure with proper installation of firewalls and routers with appropriate policies, so that unwanted traffic and organization traffic can be separated clearly. Filters incoming traffic on routers or rate-limit certain types of traffic like ICMP and SYN packets. Monitors continuously incoming and outgoing packets and if some abnormality seen then react accordingly. Use Network Address Translation (NAT) to hide internal IP addresses. Use Intrusion detection systems (IDS) implement host based IDS plus network based IDS in a mix pattern to filter and detect abnormalities in the network. Egress and Ingress filtering, these are filtering mechanism implement on IP traffic. Egress sets the ranges of IPs leaving the organizationà ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬Ãƒ ¢Ã¢â‚¬Å¾Ã‚ ¢s network whereas in ingress a set of IP address ranges are allowed to move into the network. Using of SYN and RST cookies to verifies both communication parties with the help of cookies, so that legitimate clients can access the resources. Use a proxy server in between the network so that a request goes via proxy to server and proxy filters it according the rules implemented on it. Implement Honeypots systems, these are the systems in an organization with open security and are separated with internal network to know the attack pattern. At last but not least literate the users or clients about the security concerns. Conclusion DDoS Attack is an attack on availability of the resources and services which results in financial losses, loss of organization reputation, and disturbance in work flow environment. The bitter truth is that the security technologies like firewall, routers and IDS are very week to prevent DDoS as it cannot differentiate between original and fake traffic. Another factor is that it uses IP spoofing, difficult to verify with original packets plus the routing involved is stateless. Hence results in very strong attack. In this paper we have gone through the DDoS overview with its architecture layouts plus types and tools involved in DDoS attack. We have highlighted the DDoS detection part and visualize the security aspects and implementation to safeguard the assets against such attack plus a brief summary to how to trace back. To compete with DDoS one way effort cannot prevent or defeat it, it needs all round support to tackle with it like among different internet communities, different countries to enforce such laws and regulation strictly to cope with it. suggestions DDoS is a newer and disastrous attack, so to prevent it I would suggest that very carefully implement DDoS security measures which are defined above. Beside these IPSec and SSL/TLS protocols implementation can helps a lot to prevent. VPNs can be added for secure channel communications. Use Mozilla Firefox as browser instead of others.

Relationship Between Gender and Health

Relationship Between Gender and Health Sex, Gender and Health Introduction One of the main objectives of the National Health Service set out in the 1940’s was â€Å"To ensure that everybody in the country-irrespective of means, age, sex, or occupation-shall have equal opportunity to benefit from the best and most up to date medical and allied services available (Ministry of Health, 1944). Although the words equity and equality do not feature in documents from the early days of the NHS, there are many reasons to conclude that the service was intended to provide equal access or actual treatment for those in equal need (Delamothe, 2008). This concept had been refined since then, and an equitable health service is understood to mean â€Å"one where individuals’ access to and utilisation of the service depends on their health status alone.† (Dixon et al., 2003). There are many explanations for factors attributable to differences in the equity of care, such as income, income inequality, social connectedness, and social capital, which have al l shown some association with health and illness (Berkman Syme, 1979; Fiscella Franks, 1997; Kawachi et al., 1997; Lomas, 1998; Naidoo Wills, 2000). This paper shall examine the meaning of gender as another of these determinants of health. The differences between the terms sex and gender shall first be discussed. Secondly pathways through which gender effects health shall be examined, paying particular attention to risk behaviours, gender roles, and gender discrimination. Finally, the differential exposure and differential vulnerability hypotheses shall be discussed. Sex and Gender Raymond Williams argued that vocabulary involves not only ‘the available and developing meaning of known words’ but also ‘particular formations of meaning-ways not only of discussing but at another level seeing many of our central experiences’ (Williams, 1983 p15). Language in this sense embodies ‘important social and historical processes’ in which new terms are introduced or old terms take on a new meaning. Often ‘earlier and later senses coexist, or become actual alternatives in which problems of contemporary belief and affiliation are contested’ (Williams, 1983 p22). The introduction of ‘gender’ in English in the 1970s as an alternative to ‘sex’ was to counter the implicit and explicit biological determinism pervading scientific lay language (Krieger, 2003). Sociologists describe sex as the relatively unchanging biology of being male or female, while gender refers to the roles and expectations attributed to men and women in a given society, roles which change over time, place and life stage (Phillips, 2005). Genetic profile and hormone profile are both examples of sex, a constant set of biological characteristics that remain the same across societies, whereas expectations about the imperative to bear children, the nature of parenting, or the status of being a mother are more to do with gender roles and expectations. Gender has an impact on health in a variety of ways. Gender inequalities in health While women generally experience poorer health than men, the pattern of gender differences in health is varied (Arber Cooper, 1999). Women have lower rates of mortality but, paradoxically, report higher levels of depression, psychiatric disorders, distress and a variety of other chronic illnesses than men ( McDonough Walters, 2001). The direction and magnitude of gender differences in health vary according to the symptom/condition and phase of life cycle (Denton et al., 2004). Female excess is found consistently across the lifespan for distress, but is far less apparent, even reversed, for a number of other physical conditions and symptoms (Matthews et al., 1999). Gender inequalities in income and wealth make women especially vulnerable to poverty. In some parts of the world this makes it difficult for them to acquire the necessities for health, especially during the reproductive years when family needs are greatest (Doyal, 2001). Social norms about the diversions of responsibility mean that many women have very heavy burdens of work, especially those who combine employment with domestic duties, pregnancy and child rearing (Naidoo Wills, 2001). Often, women in the house receive very little support and many are abused by their family members. It has been estimated that 19% of the total disease burden carried by women aged 15-44 in developed countries is the result of domestic violence and rape (World Bank, 1993). Further to this, anxiety and depression are reported more in women than in men in most parts of the world, yet there is no evidence that women are constitutionally more susceptible to such illness (Doyal, 2001). In Africa, powerlessne ss and lack of control underlie much of the exposure to HIV/AIDS amongst the female population. Disproportionate barriers (relative to men) in access to resources such as food, education and medical care disadvantage women in much of the developing world. In males risk taking behaviour is the norm amongst males in the developing world. Risk taking behaviour and its effects on male health There are now many links on the interaction between masculinity and health emerging (Schoefield et al, 2000). The development and maintenance of a heterosexual male identity usually requires the taking of risks that are seriously hazardous to health (Doyal, 2001). One of the most obvious examples of this regards the working environment. In many societies it is traditional for the man to assume the role of the provider, thus putting males at risk of dying prematurely from occupational accidents (Waldron, 1995), and although there are more women in the labour force, men from the poorest communities still do the most dangerous jobs. Further to the risks of the workplace, men often feel compelled to engage in risky behaviour to â€Å"prove their masculinity†, thus they are more likely than women to die in a car crash or dangerous sporting activities (Canaan, 1996). Men are also more likely than women to drink to excess and smoke, which increases ones physiological predisposition to early heart disease and other related problems (Doyal, 2001). They are also more likely than women to desire unsafe sex. A study in Ontario, Canada examined the causes of male deaths between birth and age 45. There reported 1,812 male deaths, of which 1,372 (76%) are due to motor vehicle accidents, suicide, and AIDS, leaving 440 deaths unrelated to behaviour. Although the male excess of deaths from car accidents may, in part be attributable to greater distances driven and not behaviour while driving, the male relationship with the automobile is almost certainly another aspect of gender roles. Only 308 (33%) of the 936 female dea ths are explained by such behaviour. When non-risk taking causes of death are isolated from the data, women under age 45 have a mortality which is 1.43 times that of mens. Over age 45 the leading causes of death for both men and women are chronic diseases. Men die of heart disease in equal numbers but at a younger age than do women. With increasing age the number of deaths for women creeps upward to equal that of men (Phillips, 2005). Differential exposure and differential vulnerability hypotheses Since gender is a measure of both biological and social differences, it is likely that the health inequalities between men and women reflect both sex-related biological and social factors, and the interactions between them (Denton et al., 2004). There are two general hypotheses that account for these gender based inequalities in health. The differential exposure hypothesis suggests that women report higher levels of health problems because of their reduced access to the material and social conditions of life that foster health (Arber Cooper, 1999), and from greater stress associated with their gender and marital roles. Many studies have shown that women occupy different structural locations than men: they are less likely to be employed, work in different occupations, and are more likely to be on lower incomes, and to do domestic labour and to be a single parent than men (Denton Walters, 1999). There are also gender differences in exposure to lifestyle behaviours, such as those prev iously mentioned (that men are more likely to smoke, consume alcohol) as well as having an unbalanced diet and being overweight, while women are more likely than men to be physically inactive (Denton Walters, 1999). De Vries and Watt (1996) also suggest that women report higher levels of health problems because they are exposed to a higher level of demands and obligations in their social roles, as well as experiencing more stressful life events. Women also have lower levels of both perceived control and self esteem than men (Turner Roszell, 1994), though women report higher levels of social support (Umberson et al., 1996). The differential vulnerability hypothesis on the other hand suggests that women report higher levels of health problems because they react differently than men to the material, behavioural and psychosocial conditions that moderate health (Denton et al., 2004). Multivariate analyses have shown that men and women differ in vulnerability to some, but not all, of the social determinants of health (Denton et al., 2004). That is, the moderating effect of gender is determinant specific. Having a high income, working full time, caring for a family, and having good social support have been shown to be more importance predictors for predicating health in women than men (Prus Gee, 2003). Smoking and alcohol consumption are more important as discussed previously, are more important determinants of health for men than women, while body weight and being physically inactive are more important for women (Denton Walters, 1999). Furthermore, the effects of stress may be experienced and personified b y men and women in a variety of different ways. The literature appears to show that women react more to ongoing strains than men do, and are more likely to report and react to stressors experienced by others (Turner Avison, 1987), while men are more likely to mention and react to economic stressors (Wheaton, 1990). Zuzenak Mannell (1998) argues that women have a greater vulnerability to the effects of chronic stressors on health due to the greater stress associated with their family and marital roles. Denton et al., (2004) used multiple indicators of health and its social structural, behavioural, and psychological determinants to gain a comprehensive understanding of the role that social factors play in determining health. They report that women’s poorer health is partly due to the reduced access, on average, to the material and social conditions of life that foster health, to their differential exposure to stressful life events and to everyday stressors associated with a women’s social roles. Men’s health also seems to be reduced by their greater likelihood to partake in risk taking behaviours such as smoking and excessive drinking. These, as well as physical activity are more important to men’s health. Conclusion Gender is a social construct, and sex is a biological construct. They are each distinct, and are not interchangeable terms. The use of the term gender facilitates discussion of the effects of social norms and expectations on the health of both males and females. It is clear that gender has many effects upon health and well being, and that this is a complex issue, with behavioural and psychosocial determinants of health growing out of the social context of peoples lives. This paper has discussed the social and structural context of peoples lives for health benefits – clearly a strong and well studies theme in the literature (Denton Walters, 1999; Denton et al., 2004). It seems that behavioural determinants play less of a role in predicting health, yet there effects also tend to be mediated by social structure (e.g. those with a low income are more likely to smoke, drink excessively, and be overweight and inactive. These factors can then, collectively, lead to chronic health pr oblems later on in life. It also seems reasonable to conclude that men and women suffer from different types of stressor. They also both cope in different ways. For example, the exposure hypothesis proposes that gender-based health inequalities are the result of the differing social location between men and women. There different life style behaviour’s and the differing number of chronic stressors and life experienced by men and women. The vulnerability hypothesis proposes that women’s health differs from men’s because they also react in different ways to factors that determine health. It seems then, that although there are many other sociological factors that can have an impact on health, there are many gender differences to account for also, making this a very complex issue. References Arber, S., Cooper, H. (1999). Gender differences in health in later life: the new paradox? Social Science and Medicine , 66 (6), 61-76. Bank, W. (1993). World development report 1993: investing in health. New York: Oxford University Press. Berkman, L., Syme, S. (1979). Social networks, host resitance and mortality: a nine year follow up study of Alameda County residents. American Journal of Epidermology , 109, 186-203. Delamothe, T. (2008). Universality, equity and quality of care. British Medical Journal , 336, 1278-1282. Denton, M., Walters, V. (1999). Gender differences in structural and behavioural determinants of health: an analysis of the social production of health. Social Science Medicine , 48, 1221-1225. Denton, M., Prus, S., Walters, V. (2004). Gender differences in health: a Canadian study of the psychosocial, structrual, and behavioural determinants of health. Social Science and Medicine , 58, 2585-2600. De-Vries, B., Watt, D. (1996). A lifetime of events: Age and gender variations in the life story. International Journal of Aging and Human Development , 42 (2), 81-102. Dixon, A., Le Grand, J., Henderson, J., Murray, R., Poteliankoff, E. (2003). Is the NHS equitable? A review of the evidence . Londone: London School of Economics. Doyal, L. (2001). Sex. gender, and health: the need for a new approach. British Medical Journal , 323, 1061-1065. Fiscella, K., Franks, P. (1997). Poverty or income inequality as a predictor of mortality: Longtitudinal cohort study. British Medical Journal , 314, 1724-1728. Kawachi, I., Kennedy, B., Lochner, K., Prothrow-Smith, D. (1997). Social capital and health: Implications for public health and epidemiology. Social Science and Medicine , 87, 1491-1498. Lomas, J. (1998). Social capital and health: implications for public health and epidermology. Social Science and Medicine , 47, 1181-1188. Naidoo, J., Wills, J. (2000). Health Promotion-Foundations for Practice. London: BailliereTindall. Phillips, S. (2005). Defining and measuring gender: A social determinant of health whose time has come. International Journal for Equity in Health , 4 (11), 1-4. Prus, S., Gee, E. (2003). Gender differences in the influence of economic, lifestyle and psyhco-social factors on later life health. Canadian Journal of Public Health , 94 (3), 94-102. Schoefield, T., Connell, R., Walker, I., Wood, J., Butland, D. (2000). Understanding mens health and illness: a gender relations approach to policy, reseacrh and practise. Journal of the Amercian Colege of Health , 48, 247-258. Scotland, M. o. (1944). A national health service. London: HMSO. Turner, J., Avison, W. (1987). gender and depression: Assessing exposure to life events in a chronically strained population. Journal of Neurons and Mental Disease , 77 (8), 443-455. Turner, J., Roszell, P. (1994). Psychosocial resources and the stree process. In W. Avison, I. Gotlib, Stress and mental health: Contemporary issues and prospects for the future. New York: Platinum Press. Umberson, D., Chen, M., House, J., Hopkins, K., Slaten, E. (1996). The effect of social relationships on psychological well-being. Are men and women really no different? Sociological Review , 61, 837-857. Waldron, I. (1995). Contributions of changing gender differentials in behaviour to changing gender differentials in mortalitly. In D. Sabo, G. Gordon, Mens health and illness: gender, power, and the body. London: Sage Publications. Wheaton, B. (1990). Life transitions, role histories, and mental health. American Sociological Review , 55, 209-223. Williams, R. (1983). A vocabulary of culture and society. Revised edition. New York: Oxford University Press. Zuzanek, J., Mannell, R. (1998). Life-cycle squeeze, time, pressure, daily stress, and leisure participation: A Canadian perspective. Society and Leisure , 21 (2), 513-544. 1

Oil and Saudi Arabia Essay -- Essays Papers Oil Saudi Arabia Papers

Exposing the Saudi Arabian Royal Family, U.S. foreign policy, and the poverty currently occurring within Saudi Arabia Preface The current world dependence on oil leaves much to be said about the impact of Saudi Arabia and the Middle East on foreign policy and international politics. Presently the world's largest consumer of oil, the U.S. depends on Saudi Arabia and much of the Middle East for the energy to run its businesses, its homes, and most importantly, its automobiles. In the past few months U.S. consumers have felt the pressures of increasing gasoline prices as they struggle to commute and live their daily lives. This leaves the U.S. with important decisions to be made on behalf of its citizens and its position in the international realm. Saudi Arabia, the leader of OPEC (Organization of Petroleum Exporting Companies), maintains a powerful position in negotiations with the U.S. and other countries. Its vast supply of oil directly effects per barrel pricing and is a unique bargaining tool in international politics. But Saudi Arabia is no ordinary country in today's world. Its borders are governed by a royal family of nearly 30,000 individuals, all of which share most of the wealth and almost all of the power. Its people, with foreign exceptions, are wholly Islamic and many practice the faith with a frightening sense of devotion. And despite the immense revenue generated by its oil reserves, part of its population still lives in absolute poverty. Although recently it has seen immense change, it is still a country fair behind the progressive world. This report draws from many publications written over the last twenty years exposing the unique situation in Saudi Arabia, while also utilizing recent headl... ... September 2003 (31 May 2004). ?Oil jumps back near $42,? (31 May 2004). ?Plots and bombs,? The Economist, May 1 2004: 47. ?Still at its mercy,? The Economist, May 22 2004: 10 ?The limits of reform,? The Economist, Mar 27 2004: 47. ?US Challenges and Choices Saudi Arabia: A View from the Inside,? The Atlantic Council of the United States, The Middle East Institute, The Middle East Policy Council, and The Stanley Foundation, (May 31, 2004). ?What if The Economist, May 29 2004: 69. William Powell, Saudi Arabia and its Royal Family, (New Jersey: Lyle Stuart Inc., 1982). World Bank Report 2003, ?Saudi Arabia,? Oil and Saudi Arabia Essay -- Essays Papers Oil Saudi Arabia Papers Exposing the Saudi Arabian Royal Family, U.S. foreign policy, and the poverty currently occurring within Saudi Arabia Preface The current world dependence on oil leaves much to be said about the impact of Saudi Arabia and the Middle East on foreign policy and international politics. Presently the world's largest consumer of oil, the U.S. depends on Saudi Arabia and much of the Middle East for the energy to run its businesses, its homes, and most importantly, its automobiles. In the past few months U.S. consumers have felt the pressures of increasing gasoline prices as they struggle to commute and live their daily lives. This leaves the U.S. with important decisions to be made on behalf of its citizens and its position in the international realm. Saudi Arabia, the leader of OPEC (Organization of Petroleum Exporting Companies), maintains a powerful position in negotiations with the U.S. and other countries. Its vast supply of oil directly effects per barrel pricing and is a unique bargaining tool in international politics. But Saudi Arabia is no ordinary country in today's world. Its borders are governed by a royal family of nearly 30,000 individuals, all of which share most of the wealth and almost all of the power. Its people, with foreign exceptions, are wholly Islamic and many practice the faith with a frightening sense of devotion. And despite the immense revenue generated by its oil reserves, part of its population still lives in absolute poverty. Although recently it has seen immense change, it is still a country fair behind the progressive world. This report draws from many publications written over the last twenty years exposing the unique situation in Saudi Arabia, while also utilizing recent headl... ... September 2003 (31 May 2004). ?Oil jumps back near $42,? (31 May 2004). ?Plots and bombs,? The Economist, May 1 2004: 47. ?Still at its mercy,? The Economist, May 22 2004: 10 ?The limits of reform,? The Economist, Mar 27 2004: 47. ?US Challenges and Choices Saudi Arabia: A View from the Inside,? The Atlantic Council of the United States, The Middle East Institute, The Middle East Policy Council, and The Stanley Foundation, (May 31, 2004). ?What if The Economist, May 29 2004: 69. William Powell, Saudi Arabia and its Royal Family, (New Jersey: Lyle Stuart Inc., 1982). World Bank Report 2003, ?Saudi Arabia,?

Attitude in All Quiet on the Western Front :: essays research papers

All Quiet on the Western Front All Quiet on the Western Front shows the change in attitudes of the men before and during the war. This novel is able to portray the overwhelming effects and power war has to deteriorate the human spirit. Starting out leaving you're home and family and ready to fight for you country, to ending up tired and scarred both physically and mentally beyond description. At the beginning of the novel nationalist feelings are present through pride of Paul and the rest of the boys. However at the end of the war it is apparent how pointless war really is. All Quiet on the Western Front is a novel that greatly helps in the understanding the effects war. The novel best shows the attitudes of the soldiers before the war and during the war. Before the war there are high morals and growing nationalist feelings. During the war however, the soldiers discover the trauma of war. They discover that it is a waste of time and their hopes and dreams of their life fly further and further away. The remains of Paul Baumer's company had moved behind the German front les for a short rest at the beginning of the novel. After Baumer became Paul's first dead schoolmate, Paul viewed the older generation bitterly, particularly Kantorek, the teacher who convinced Paul and his classmates to join the military. " While they taut that duty to one's country is the greatest thing, we already that death-throes are stronger.... And we saw that there was nothing of their world left. We were all at once terribly alone, and alone we must see it through."(P. 13) Paul fe lt completely betrayed. " We will make ourselves comfortable and sleep, and eat as much as we can stuff into our bellies, and drink and smoke so that hours are not wasted. Life is short." (P 139) Views of death and becoming more comfortable with their destiny in the r became more apparent throughout the novel. Paul loses faith in the war in each passing day. * Through out the novel it was evident that the war scarred the soldiers permanently mentally. Everyone was scared to go to war when it started. Young recruits were first sent because the veterans knew they were going to come back dead. "When we runt again, although I am very excited, I suddenly think: "where's Himmelstoss?" Quickly I jump back into the dug-out and find him with a small scratch lying in a corner pretending to be wounded.