Guide Wavelength Measurements Essay Example for Free

Guide Wavelength Measurements Essay The relationship between the wavelength in free space and the guide wavelength. Furthermore, this experiment will be a way in which to gain experience in using different types of laboratory communications equipment. Introduction What is wavelength? Wavelength of a sinusoidal wave is the distance between identical points in the adjacent cycles of a waveform signal. Wavelength is commonly designated by the Greek letter lambda (? )Wavelength is inversely correlated to frequency (figure 1. 1), therefore the higher the frequency of the signal, the shorter the wavelength. vp Is the phase velocity f is the frequency vp Is the phase velocity f is the frequency ?=vpf Figure 1. 1 What is a wave guide? Figure 1. 2 A waveguide is a special form of transmission line consisting of a rectangular (figure 1. 2) or cylindrical metal tube or pipe, through which electromagnetic waves are propagated in microwave and RF communications. It s commonly used in microwave communications, broadcasting, and radar installations. A waveguide must have a certain minimum diameter relative to the wavelength of the signal and therefore are practical only for signals of extremely high frequency. Consequently below such frequencies, waveguides are useless as electrical transmission lines. â€Å"An electromagnetic field can propagate along a waveguide in various ways. Two common modes are known as transverse-magnetic (TM) and transverse-electric (TE). In TM mode, the magnetic lines of flux are perpendicular to the axis of the waveguide. In TE mode, the electric lines of flux are perpendicular to the axis of the waveguide. Either mode can provide low loss and high efficiency as long as the interior of the waveguide is kept clean and dry. † Some disadvantages are: * The high cost, since the material used is special alloy (copper and silver). * It is not possible to pass DC currents along with your RF signal. * The volume and mass particularly are at lower frequencies. Although there is quite a few disadvantages the fact that you can transmit extremely high peak powers and very low loss outweighs it. Furthermore the Silver plating used on the inside walls of the waveguide decreases the resistance loss making the copper and aluminium waveguides even more efficient. Experimental notes The experiment needs to be conducted to obtain the value of the guide wavelength and thereafter calculate the wave dimension and observe whether it matches the initial result that was measured. The initial result measured was the value. Cut-off wavelength for the wave guide mode being propagate ? o = Wavelength in free space g = Guide wavelength, known as delta g The equation to measure ? o is already present as it is given by free-space. Although the cut-off wavelength can be calculated by rearranging the formula in figure 1. 1, the experiment will be used to further confirm this mathematical formula. What we will acquire is a range of guide wavelengths throughout the experiment in order to find the Cut-off wavelength. Where is the cut-off wavelength for the waveguide mode being propagated? The dominant mode is being propagated in the rectangular waveguide (figure 1. 2) which means where (a) is the internal broad dimension of the rectangular waveguide. Block diagram Microwave signal source Isolator Preset attenuator Wave meter Short circuit Calibrated attenuator Tuned SWR amplifier + meter Standing wave detector Microwave signal source Isolator Preset attenuator Wave meter Short circuit Calibrated attenuator Tuned SWR amplifier + meter Standing wave detector Microwave signal source This device is the signal generator where you get 8 to 12 GHz. It is extremely expensive equipment and costs in the region of ? 20,000. This is due to the fact that we are dealing with high frequency signals and not with normal radio waves. Isolator By terminating one port, a circulator becomes an isolator, which contains the property for energy to flow in one direction only. It samples some of the forward wave power and couples it to a calibrated cavity wave meter for measuring the oscillator frequency. Preset attenuator â€Å"Attenuators are essential building blocks when developing test stations for applications† Attenuators are devices used to adjust signal levels which helps to stop the reflected power from reaching the oscillator, control impedance mismatch and to isolate circuit stages. Wave meter Any device for measuring the free-space wavelengths (or frequencies) of microwaves; usually made of a cavity resonator whose dimensions can be varied until resonance with the microwaves is achieved. The determination is often made indirectly, by measuring the frequency of the wave. Calibrated attenuator The calibrator changes the value if it gets too high. Attenuators are manufactured with high-accuracy calibration, and for utmost precision. They available in standard waveguide were each attenuator is calibrated at the frequency specified at the time of order. Standing wave detector Standing wave detector detects radio frequency signals along a transmission line or in a waveguide and changes it into a DC voltage for the reason that the waveguide cannot transmit DC currents along with the RF signal. Tuned SWR amplifier + meter The  standing wave ratio  meter  measures the  SWR (standing-wave-ratio)  which is the ratio of the amplitude of a partial standing wave at a maximum to the amplitude at a minimum in a transmission line. This is an item of  radio  equipment used to check the quality of the match between the  antenna  and the  transmission line. Procedure 1. Set up the microwave bench, as indicated. 2. Read the basic instructions for the microwave bench and then obtain oscillations at 8. 5 GHz from the microwave signal source. 3. If it is possible, maximize the deflection on the SWR-meter by using the method outlined in the basic instructions. 4. Measure the frequency, f, using the wave meter. Calculate the free space wavelength, ? o , by using ? o = c/f where c = 2. 997? 1010 cm s-1. 5. Move the standing wave detector (SWD) probe along the slotted line and watch the SWR-meter.

Woodlands & forests Essay Example for Free

Woodlands forests Essay Forests and woodlands provide many social, economic, and environmental benefits. In addition to timber and paper products, forests provide a wildlife habitat and recreational opportunities, prevent soil erosion and flooding, help provide clean air and water, and contain tremendous biodiversity. Forests are also an important defence against global climate change. However, huge areas of the richest forests in the world have been cleared for wood fuel, timber products, agriculture, and livestock. This is why we must take extreme measures to conserve these natural resources. We can conserve forests and woodlands by careful management of the woodlands and forests, also by limiting deforestation and by adapting good forestry practices and to encourage woodland owners to help sustain their land. New by-laws have been implemented in which if a heavy fine and/or prison sentence may follow if a person breaches their conservation agreement. Britain is a good example of an industrialised country that is adapting strong conservation methods to help retain their native woodland. This involves special areas being designated National Parks or ESA’s etc. National Parks allow total protection of an area under law and is cared for by the National Trust aswell as the private landowners. Environmentally Sensitive Area’s (ESA’s) are to maintain areas of natural beauty and to allow habitats to be protected from destruction. Brazil in the developing world is home to the Amazon rainforest which is under constant exposure to deforestation. The cause of this large scale destruction is purely for economic reasons for timber and minerals etc. An estimated 3 hectares of forest is destroyed every minute and this must stop. The developing world must take action and adapt new ways of ensuring they protect their forest from exploitation. There are many ethical and aesthetical reasons for why we should conserve woodlands and forests is because everything has the right to live including trees. The environment is also the target of pleasure seekers and therefore it is needed to continue as a source of pleasure for people to enjoy and appreciate. Example: People like to escape the cities at the weekends or for holiday breaks to feel escape and to enjoy beautiful scenery aswell as watching wildlife. Ecotourism will be benefited by tighter conservation laws and will allow more people to be able to enjoy the natural environment without spoiling/ruining it in the process. There are many other ecological reasons of why we must conserve forests and woodlands. Plants are essential for regulating the atmosphere, the water cycle and is also a vital part of both the the nitrogen and carbon cycles. They form the soil and are a source of dependency for many plants, animals, birds and insects. One of the most important reasons to conserve is the potential for discovering wonderful new medicines that could hold the cures to the worlds worst diseases, this would also have enormous economic benefits for the country where discovered. E. g. a discovery in the developing world could bring billions of investment into the country and could help eliminate poverty. The conservation of forests and woodland is essential as the world’s forest contain great biodiversity and is a major habitat to millions of species. The threats of logging and urban expansion are jeopardising the world most valuable resource. Discuss the ways in which â€Å"afforestation† may influence: Climate, Soil, Water Cycle Afforestation can bring great benefits to the world. The effect on the climate can be dramatically greater when compared to deforestation. Afforestation has had many success stories throughout the world. E. g. in Finland during the 1960’s a massive area of 200,000hectares was planted. The results showed that after a scenic beauty assessment all the areas afforested now had a higher scenic beauty rating. And many animals returned to a new habitat that they had previously lost. Afforestation has many climatic impacts in relation to the greenhouse effect. The trees take in more Carbon Dioxide which is allowing negative feedback to occur, therefore resulting in a reduction in Carbon Dioxide levels. Due to the way C0 2 is an insulating gas, the removal of this gas actually lowers the temperature, so afforestation can actually help control the temperature and prevent the enhanced greenhouse effect. Afforestation can also affect winds by acting as a windbreak and can help in preventing soil erosion it acts as a saltation. The planting of more trees will help improve the humidity particularly in dry areas where the atmosphere and air is very dry and lacks moisture for further plant growth and vegetation. The gain of deep rooted plants can prevent land from being degraded. The deep roots can reach deep down to find the groundwater and will transport its up from the ground and up into the atmosphere as part of the hydrological cycle. The roots help bind the soil. It also affects salinity by transpiring water it helps keep the water table well below the surface and prevents salinisation from occurring. Trees also intercept some rainfall from reaching the ground and this helps prevent the soil from becoming waterlogged. Other climatic factors are influenced by forest cover. An article in New Scientist magazine shows that new climate models have found that forests help cool the atmosphere as the water evaporating from leaves absorbs heat, it also stated that the location chosen to afforest is important as if you chose to plant a forest to take in C0 2 it could actually lead to warming if it was planted in a region where snow falls, as this would change the lands albedo value and would reflect less sunlight. The forest has major influences on the hydrologic and carbon cycles, regulating the conversion of precipitation to runoff, CO 2 fixation, and evapotranspiration. It also influences the hydrologic cycle on the ground surface and maintains the production of biomass and vegetation. Areas of large forest cover will have high precipitation levels and high humidity related to the amount of water present in its local atmosphere due to the forests water holding system. Afforestation will affect the water cycle in a positive way by helping areas with low rainfall have more precipitation for its local crops etc.

The relationship between social and health problems

The relationship between social and health problems Abstract: The term Social Problems is a misnomer and is an admission of the fact that the actual nature and constitution of the situation has not been deliberated at depth. When senior people see that the rules and behavioural patterns they have held so dear are getting challenged they term it as creation of problems. Criticising the social order that is emerging is the easiest way to admit defeat. The brave and sensible way is to accept the challenges and find ways and means of retaining the value system – may be with certain modifications – that has been followed for generations. In this way the young generation can adjust to the social changes and yet remain healthy and flourish in life. Introduction: The present day health issues are very closely related to the current social set up and coming into existence of a new set of social norms and values. While most of the social norms and values are traceable to and intimately related to the economic factors yet there is a trend of getting carried away by foreign cultures and their different social bearings. The pressure on the present day youth for being economically successful is very high and this gives a peculiar dimension to these ‘youngsters’ way of life which is enormously different to the type of pressures felt by the previous generations. While on one hand parents expect their children to become successful – which is a decent way of saying that they earn pots and pots of money – on the other the boys and girls are expected to follow the same set of social rules which has been followed by the ‘elders’ for generations. Thus the social problems have many causes but one significant reason is the inability of the older generations to accept and adjust to the changes in the society which is inevitable. The main problem that surfaced is that previous generation weighed the social structure of today by the norms and values that were taught to them quite a few decades back. The ground reality has changed rapidly and the senior generations are still getting guided by the rules of the game of yesteryears. The world is changing faster than it ever did before and the changes are not only very wide and rapid but are also very deep penetrating. Thus the changes are in effect causing social ‘evils’ as seen by the previous outlook but in reality the developments of the world is going on for centuries and what is being called as social problems is a manifestation of the inability to change and adjust to the new life order. Discussion: As stated in the introduction above, it is evident that there is need to face the societal changes that are coming up every day. In order to examine the situation in depth, three generation of society were interviewed to get to the bottom of the problem. The first were the generation of grandparents – who learned their ways of life some fifty to sixty years back. The next set consisted of parents i.e. father and mother group of today’s youngsters and they learned what they believe to be correct social norms some twenty-five to thirty year back. The final subset consisted of growing boys and girls of today and consisted of college and university students. These are the people who are bearing the brunt of the social problems which in turn is having a serious effect on their health. The first set of people consisting of grandparents carried fixed and set ideas about what the societal norms and beliefs are supposed to be. They saw no reason for changing those norms and beliefs. The behavioral norms were very strictly defined and centered around simple living and high thinking with very little emphasis and importance – if any at all – being paid to the economic progress and well being. They had lived their life in a very definite way and firmly believed that what was good for them is also god for their grandchildren today. Above all, their firm belief that ‘one size fits all’ concept as far as social behavior is concerned was much too firm for accommodating any updating necessitated by the present day life style. This brought about the severe view of the present day social interactions and the resultant problems. They knew that they had lived their life and were in no mood to accommodate or even tolerate the changing pattern of social values and norms. The best thing is that – in fact it should be called the worst thing – is that his set of people failed to see the few very good aspects of the changing patterns of social behavior. They invariably were quick to point out the drawbacks without for a moment acknowledging the good and beneficial aspects of the emerging new social order. The second set of people who were interviewed represented the parents. This group had its own problems. They fully appreciated the beneficial aspects of the change but were hesitant to admit the same since it clashed with what they were taught as the ideal way of social behavior. They too saw the problems of the present social setups and behavioral patterns but at the same time knew that there is no stopping of the changes coming about. Further they saw the new order did bring new problems but at the same time it encouraged the democratic institutions so very necessary for the well being of the future generations. They wanted to break away from the traditional social order and get into the flow of development of the new order. However, they had reached an age where they were unable to be adventurous and were cautious about accepting the changes. This gave rise to a very unbalanced state since while in their heart of hearts they knew that what was seen as social problems were more of aberrations of their viewing the outcomes than causing difficulties for the new generations. Yes, they wanted their children to bag high-pay job offers but at the same time wanted their children to stick to the ‘five prayers a day’ schedule despite the demands of their job conditions. This kind of situation is prevalent not only in the Middle East but such situation also exists in most of the emerging economies like Brazil, India, China, Pakistan etc. This group, like the previous group of grandparents, also quickly saw the social problems – but with a difference. This group simultaneously tried to find a solution which would accommodate the social change and at the same time keep a balance with the past so that the health (both mental as well as physical) hazards were contained. This is a very healthy indicator of the changes in social order being slowly accepted and though it is a slow process but it is a sure process. The present social norms have taken centuries to develop; it is very likely that the new social order will take some time to settle down. The last group consisted of the people of the below twenty-five age group. The first priority for this group was a better and more comfortable way of life. They valued democracy in all walks of life. They carried no negative feelings for the age old systems and gave full credit to the social order which has seen their predecessors to reach the current state. Yet when any of the social behavioral patterns got into the way of their achieving the goal they so cherished they did not hesitate to set aside the existing social norms. They were ready to burn the midnight lamp if that meant getting higher grades which would translate into their landing better jobs. Yes this was a potential health hazard but it also promised attainment of their dream goals. These groups wanted to make it big and for achieving this they were ready to take on with a ‘no-holds-barred’ situation. Good health is basic pre- requisite of good life. Without having good heath one will lose the very capacity for any human pursuit – from the grossest to the subtlest. He will not be able to enjoy the fruits of his toil. Health does not mean absence of diseases but it implies the possession and cultivation of a physically fit, morally strong and mentally alert individual who is able to meet the physical demands of life pursuits with full vigour and enthusiasm. The present day society seeks comforts, conveniences and freedom from drudgeries and wants to avoid working on monotonous, back-breaking and tedious chores from dawn to dusk – except out of compulsion. They prefer freedom from all hindrances and choose democratic way of life. Democracy for them is not just a merely form of government but it is a foundational societal value and hence they prefer a democratic society. In such a preferred democratic society values of freedom, equality, respect for the individual, collective decision making and the right to dissent should be inbuilt into the social arrangements and transactions. The young people with a democratic bent of mind respected the rights and freedoms of other people. They treated people at the level of equality and were tolerant of the views and opinions which were different from their own. When they were invested with authority they would use it with care and that too for the common benefit of people. Instead of imposing their views on others they would look for a consensus solution for making any collective decision. While the first group (grandparents) stood out by their intolerant attitude, this group of young citizens were endowed with refined, liberal and humanistic values. Though the members of the first group found the young people as creators of all trouble and labelled them as ‘rebels’ the younger generation were accepting their new found status of that of a rebel with alarming ease and comfort. They knew that if they stuck to the ways of the senior citizens then the possibilities of their realising their dreams of making it big would never materialise. There is ample historical evidence which go to prove that change – be it social, economic, technological or even environment – are all here to stay. Either one makes himself capable to adjust to the change or the process of change will eliminate them for good. Now, SOCIETY is an organisation for cooperative working to ensure human development, through production and distribution of sharable social goods. Society is made up of various constituents like individuals, different classes and groups, social, economic institutions and many more. In UAE and other Middle East countries the individual goals and the collective goals are often in conflict with each other. Yet the main objective of any developing and healthy society is to ensure human development which is not restricted to social, political, economic issues but also the development of the members on a total basis which would include health, formality and above all the value system of life. As stated earlier, one of the major aim of any society is to ensure production and distribution of sharable social goods like roads, transportation, water, electricity, health care and a host of other facilities. Opportunities and means of gainful employment, jobs, career and other rightful and legitimate means of seeking personal economic betterment are also to be treated as part of sharable social goods. Thus, the social changes taking place in every country and in every society aim at providing better opportunities and means of gainful employment and suitable jobs to the members of the society. There is no harm if the young people of today seek better standards of living and are prepared to dissociate themselves from the social norms which prevent their advancement in life. Conclusion: To sum up the entire picture it is necessary to understand that the so called Social problems are the result of the failure to appreciate the wisdom behind each and every change that is taking place in the world around. Older people who have lived their lives may conveniently call such changes as resulting in problems causing health hazards but such changes are for ‘GREATER GOOD’ and hence should be accepted if not welcomed. The budding Engineer or Manager or Professor faces an uphill task and shying away from sharing the gains available today is certainly not wise. Though the severe challenges may prove to be a health hazard in the short run but over time people will learn to cope with it and emerge the winner. Thus finding faults with the social problems is the weak person’s way of handling the changes taking place in the milieu. A strong and healthy individual will take the bull by its horns and will certainly succeed in controlling the social changes to his advantage.

The Geneva Convention: Preventing Atrocities Towards Prisoners of War :: American America History

The Geneva Convention: Preventing Atrocities Towards Prisoners of War The Allied established the Geneva Convention to protect wounded soldiers in 1864. They amended it four times with the fourth time following some of most atrocious acts against prisoners of war during World War II. I will provide evidence of what I believe led to the modifications of the Geneva Convention in 1949 to protect POWs. I will present the reasons behind the amendment and accounts of the 6th Bomb Squadron 29th Bomb Group 314th Wing during World War II. Finally, I will discuss the modifications that resulted from these acts of violence. Several nations failed to abide by the Geneva Convention during World War II. As a result of this, the convention met for the fourth time to redefine and establish the rules to protect future veterans. (Simpkin) There were 130,000 POWs captured during World War II. Japan killed the most American POWs with a staggering rate at forty percent of 27,465. (Reynolds 10) It was these outrageous events of World War II that led to the Geneva Convention of 1949, which righted the wrongs of the previous conventions. (Geneva Conventions 864) So how bad were POWs treated? I am going to tell the accounts of one of the most severe acts against mankind that occurred during World War II. An interview by an Army special agent with pilot Marvin S. Watkins revealed the following events that occurred following a bombing run in Japan. On May 5, 1945, the 6th Bomb Squadron 29th Bomb Group 314th Wing had just completed a bombing run on Tachairai air depot and was returning to our base in Guam. The following crew members were onboard: William R. Fredericks, Co-Pilot; Howard T. Shingledecker, Bombardier; Charles Kearns, Navigator; Dale Plambeck, Radar Navigator; Teddy Poncezki, Engineer; John Colehower, Gunner; Cpl. Johnson, Gunner; Cpl. Oeinck, Gunner; Cpl. Czarnecki, Gunner; Robert Williams, Radio Operator; and myself as pilot. At 0800, we were ten to twenty miles away from the target when a twin-engine enemy fighter attacked us over the island of Kyushu. One of our engines caught fire, which required the crew to abandon. The engineer and I remained onboard and we continued our flight for another five miles until we lost a wing. We then bailed out and parachuted safely before the plane crashed near the town of Taketa. I evaded capture for eight hours. I was blindfolded, handcuffed, and taken by train to a camp.

scarlet letter summary :: essays research papers

ANALYSIS OF PLOT STRUCTURE The Scarlet Letter is a unified, masterfully written novel. It is structured around three crucial scaffold scenes and three major characters that are all related. The story is about Hester Prynne, who is given a scarlet letter to wear as a symbol of her adultery. Her life is closely tied to two men, Roger Chillingworth, her husband, and Arthur Dimmesdale, her minister and the father of her child. Her husband is an old, misshapen man who Hester married while still in Europe. Chillingworth sends her ahead of him to New England, and then does not follow her or correspond with her for two years. Ironically, he shows up on the day that Hester is publicly punished for her sin of adultery. It is the first of the three scaffold scenes. Hester stands alone, clutching her infant. Chillingworth and Dimmesdale stand in the crowd watching her. Chillingworth is incensed over her sinfulness and vows to find out the identity of her partner so that he can have his revenge. is tormented by Chillingworth. As a result, Dimmesdale suffers from failing health as well as from his guilt. He tries to confess and cannot find the courage to do it. He even mounts the scaffold one night and calls Hester and Pearl to his side -- but it is under the cover of darkness. Unfortunately, Chillingworth watches this second scaffold scene in the darkness. He now has his final proof that Dimmesdale is the father of Pearl. His revenge intensifies. Hester realizes what is going on between Dimmesdale and Chillingworth and gains permission from her husband to reveal his true identity to the minister. Dimmesdale is devastated by the news and agrees to flee Boston with Hester and Pearl. He will do anything to escape the hold that Chillingworth has on him. In the end, however, Dimmesdale realizes that he can only be rid of his tormentor by publicly acknowledging his guilt. At the end of the novel, on Election Day, Dimmesdale climbs the scaffold with Hester and Pearl again. This third scaffold scene is in the light of day and before a crowd. With his family at his side, Dimmesdale finally confesses his sin and shows the scarlet "A" on his chest. He then dies peacefully. Hawthorne has perfectly structured The Scarlet Letter around three scaffold scenes. At the first one, located in the very beginning of the novel, Hester openly confesses her sin of adultery in the light of day while Dimmesdale and Chillingworth look on from the crowd that has gathered.

James Joyce and the advent of Viagra Essay -- Sports, Olympics, Sex Ve

The Olympics are an international competition event for summer sports and winter sports that happen every 2 years. It was originally an event created for men to compete in various sports. However, women were allow to participate in the early 1900s due to the increasing number of female athletes. After female athletes started to participate in the Olympic games, the question of gender identification arose. People fear that males may masquerade as females and have an unfair advantage over other participants in women-only events. To prevent this from happening, the International Olympic Commitee (IOC) started sex verification to test the participant’s sex. The question of sex verification in women’s sports started in 1936, when a Polish journalist accused the American gold medallist in 100m track and field of being a man. Helen Stephen, the gold medallist who broke the 100m record of track legend Stella Walsh was a 6 foot tall female athlete.(Carlson, 2005). Her size brought up the questions about the definition of femininity. Ironically, when Stella Walsh was found dead in an accident it was discovered that she had ambiguous genitalia and abnormal sex chromosomes. Another stunning case which prompted developing the sex verification protocol involved an athlete named Hermann Ratjen in the mid 1950s (Carlson, 2005). Ratjen admitted that he was persuaded to masquerade as a female in an Olympic event in 1936. He hid his genitals and used a fake name, â€Å"Dora,† to compete in the women high jump event. Although he set a world record in 1938 and definitely had some advantages over other female participants, he only came in at fourth place in 1936. This case made a lot of people question the sexuality of some Eastern Bloc competitors. ... ...discriminating. Due to all the human right issues and Semenya’s privacy, her test result was never released to the public and she is able to continue her sports career (Swarr,Gross & Theron, 2009). After all, sex testing is not a reasonable way to identify masquerading men, it only puts female athletes in trouble. The only case of masquerading is Hermann Ratjen, and apparently he did not even win the competition. Sex testing is discriminatory and inaccurate while it is time and money consuming. It puts a number of female athletes with genetic disorders in a nightmare situation. Luckily, Maria Patino and Caster Semenya were re-qualified in the end. We can only conclude that sex testing is simply a black and white method to categorize male and female, but this world has more than male and female. Sex testing underestimates the complexity of the human structure. James Joyce and the advent of Viagra Essay -- Sports, Olympics, Sex Ve The Olympics are an international competition event for summer sports and winter sports that happen every 2 years. It was originally an event created for men to compete in various sports. However, women were allow to participate in the early 1900s due to the increasing number of female athletes. After female athletes started to participate in the Olympic games, the question of gender identification arose. People fear that males may masquerade as females and have an unfair advantage over other participants in women-only events. To prevent this from happening, the International Olympic Commitee (IOC) started sex verification to test the participant’s sex. The question of sex verification in women’s sports started in 1936, when a Polish journalist accused the American gold medallist in 100m track and field of being a man. Helen Stephen, the gold medallist who broke the 100m record of track legend Stella Walsh was a 6 foot tall female athlete.(Carlson, 2005). Her size brought up the questions about the definition of femininity. Ironically, when Stella Walsh was found dead in an accident it was discovered that she had ambiguous genitalia and abnormal sex chromosomes. Another stunning case which prompted developing the sex verification protocol involved an athlete named Hermann Ratjen in the mid 1950s (Carlson, 2005). Ratjen admitted that he was persuaded to masquerade as a female in an Olympic event in 1936. He hid his genitals and used a fake name, â€Å"Dora,† to compete in the women high jump event. Although he set a world record in 1938 and definitely had some advantages over other female participants, he only came in at fourth place in 1936. This case made a lot of people question the sexuality of some Eastern Bloc competitors. ... ...discriminating. Due to all the human right issues and Semenya’s privacy, her test result was never released to the public and she is able to continue her sports career (Swarr,Gross & Theron, 2009). After all, sex testing is not a reasonable way to identify masquerading men, it only puts female athletes in trouble. The only case of masquerading is Hermann Ratjen, and apparently he did not even win the competition. Sex testing is discriminatory and inaccurate while it is time and money consuming. It puts a number of female athletes with genetic disorders in a nightmare situation. Luckily, Maria Patino and Caster Semenya were re-qualified in the end. We can only conclude that sex testing is simply a black and white method to categorize male and female, but this world has more than male and female. Sex testing underestimates the complexity of the human structure.

A Game of Thrones Chapter Thirty-five

Eddard He found Littlefinger in the brothel's common room, chatting amiably with a tall, elegant woman who wore a feathered gown over skin as black as ink. By the hearth, Heward and a buxom wench were playing at forfeits. From the look of it, he'd lost his belt, his cloak, his mail shirt, and his right boot so far, while the girl had been forced to unbutton her shift to the waist. Jory Cassel stood beside a rain-streaked window with a wry smile on his face, watching Heward turn over tiles and enjoying the view. Ned paused at the foot of the stair and pulled on his gloves. â€Å"It's time we took our leave. My business here is done.† Heward lurched to his feet, hurriedly gathering up his things. â€Å"As you will, my lord,† Jory said. â€Å"I'll help Wyl bring round the horses.† He strode to the door. Littlefinger took his time saying his farewells. He kissed the black woman's hand, whispered some joke that made her laugh aloud, and sauntered over to Ned. â€Å"Your business,† he said lightly, â€Å"or Robert's? They say the Hand dreams the king's dreams, speaks with the king's voice, and rules with the king's sword. Does that also mean you fuck with the king's—† â€Å"Lord Baelish,† Ned interrupted, â€Å"you presume too much. I am not ungrateful for your help. It might have taken us years to find this brothel without you. That does not mean I intend to endure your mockery. And I am no longer the King's Hand.† â€Å"The direwolf must be a prickly beast,† said Littlefinger with a sharp twist of his mouth. A warm rain was pelting down from a starless black sky as they walked to the stables. Ned drew up the hood of his cloak. Jory brought out his horse. Young Wyl came right behind him, leading Littlefinger's mare with one hand while the other fumbled with his belt and the lacings of his trousers. A barefoot whore leaned out of the stable door, giggling at him. â€Å"Will we be going back to the castle now, my lord?† Jory asked. Ned nodded and swung into the saddle. Littlefinger mounted up beside him. Jory and the others followed. â€Å"Chataya runs a choice establishment,† Littlefinger said as they rode. â€Å"I've half a mind to buy it. Brothels are a much sounder investment than ships, I've found. Whores seldom sink, and when they are boarded by pirates, why, the pirates pay good coin like everyone else.† Lord Petyr chuckled at his own wit. Ned let him prattle on. After a time, he quieted and they rode in silence. The streets of King's Landing were dark and deserted. The rain had driven everyone under their roofs. It beat down on Ned's head, warm as blood and relentless as old guilts. Fat drops of water ran down his face. â€Å"Robert will never keep to one bed,† Lyanna had told him at Winterfell, on the night long ago when their father had promised her hand to the young Lord of Storm's End. â€Å"I hear he has gotten a child on some girl in the Vale.† Ned had held the babe in his arms; he could scarcely deny her, nor would he lie to his sister, but he had assured her that what Robert did before their betrothal was of no matter, that he was a good man and true who would love her with all his heart. Lyanna had only smiled. â€Å"Love is sweet, dearest Ned, but it cannot change a man's nature.† The girl had been so young Ned had not dared to ask her age. No doubt she'd been a virgin; the better brothels could always find a virgin, if the purse was fat enough. She had light red hair and a powdering of freckles across the bridge of her nose, and when she slipped free a breast to give her nipple to the babe, he saw that her bosom was freckled as well. â€Å"I named her Barra,† she said as the child nursed. â€Å"She looks so like him, does she not, milord? She has his nose, and his hair . . . â€Å" â€Å"She does.† Eddard Stark had touched the baby's fine, dark hair. It flowed through his fingers like black silk. Robert's firstborn had had the same fine hair, he seemed to recall. â€Å"Tell him that when you see him, milord, as it . . . as it please you. Tell him how beautiful she is.† â€Å"I will,† Ned had promised her. That was his curse. Robert would swear undying love and forget them before evenfall, but Ned Stark kept his vows. He thought of the promises he'd made Lyanna as she lay dying, and the price he'd paid to keep them. â€Å"And tell him I've not been with no one else. I swear it, milord, by the old gods and new. Chataya said I could have half a year, for the baby, and for hoping he'd come back. So you'll tell him I'm waiting, won't you? I don't want no jewels or nothing, just him. He was always good to me, truly.† Good to you, Ned thought hollowly. â€Å"I will tell him, child, and I promise you, Barra shall not go wanting.† She had smiled then, a smile so tremulous and sweet that it cut the heart out of him. Riding through the rainy night, Ned saw Jon Snow's face in front of him, so like a younger version of his own. If the gods frowned so on bastards, he thought dully, why did they fill men with such lusts? â€Å"Lord Baelish, what do you know of Robert's bastards?† â€Å"Well, he has more than you, for a start.† â€Å"How many?† Littlefinger shrugged. Rivulets of moisture twisted down the back of his cloak. â€Å"Does it matter? If you bed enough women, some will give you presents, and His Grace has never been shy on that count. I know he's acknowledged that boy at Storm's End, the one he fathered the night Lord Stannis wed. He could hardly do otherwise. The mother was a Florent, niece to the Lady Selyse, one of her bedmaids. Renly says that Robert carried the girl upstairs during the feast, and broke in the wedding bed while Stannis and his bride were still dancing. Lord Stannis seemed to think that was a blot on the honor of his wife's House, so when the boy was born, he shipped him off to Renly.† He gave Ned a sideways glance. â€Å"I've also heard whispers that Robert got a pair of twins on a serving wench at Casterly Rock, three years ago when he went west for Lord Tywin's tourney. Cersei had the babes killed, and sold the mother to a passing slaver. Too much an affront to Lannister pride, that close to home.† Ned Stark grimaced. Ugly tales like that were told of every great lord in the realm. He could believe it of Cersei Lannister readily enough . . . but would the king stand by and let it happen? The Robert he had known would not have, but the Robert he had known had never been so practiced at shutting his eyes to things he did not wish to see. â€Å"Why would Jon Arryn take a sudden interest in the king's baseborn children?† The short man gave a sodden shrug. â€Å"He was the King's Hand. Doubtless Robert asked him to see that they were provided for.† Ned was soaked through to the bone, and his soul had grown cold. â€Å"It had to be more than that, or why kill him?† Littlefinger shook the rain from his hair and laughed. â€Å"Now I see. Lord Arryn learned that His Grace had filled the bellies of some whores and fishwives, and for that he had to be silenced. Small wonder. Allow a man like that to live, and next he's like to blurt out that the sun rises in the east.† There was no answer Ned Stark could give to that but a frown. For the first time in years, he found himself remembering Rhaegar Targaryen. He wondered if Rhaegar had frequented brothels; somehow he thought not. The rain was falling harder now, stinging the eyes and drumming against the ground. Rivers of black water were running down the hill when Jory called out, â€Å"My lord,† his voice hoarse with alarm. And in an instant, the street was full of soldiers. Ned glimpsed ringmail over leather, gauntlets and greaves, steel helms with golden lions on the crests. Their cloaks clung to their backs, sodden with rain. He had no time to count, but there were ten at least, a line of them, on foot, blocking the street, with longswords and iron-tipped spears. â€Å"Behind!† he heard Wyl cry, and when he turned his horse, there were more in back of them, cutting off their retreat. Jory's sword came singing from its scabbard. â€Å"Make way or die!† â€Å"The wolves are howling,† their leader said. Ned could see rain running down his face. â€Å"Such a small pack, though.† Littlefinger walked his horse forward, step by careful step. â€Å"What is the meaning of this? This is the Hand of the King.† â€Å"He was the Hand of the King.† The mud muffled the hooves of the blood bay stallion. The line parted before him. On a golden breastplate, the lion of Lannister roared its defiance. â€Å"Now, if truth be told, I'm not sure what he is.† â€Å"Lannister, this is madness,† Littlefinger said. â€Å"Let us pass. We are expected back at the castle. What do you think you're doing?† â€Å"He knows what he's doing,† Ned said calmly. Jaime Lannister smiled. â€Å"Quite true. I'm looking for my brother. You remember my brother, don't you, Lord Stark? He was with us at Winterfell. Fair-haired, mismatched eyes, sharp of tongue. A short man.† â€Å"I remember him well,† Ned replied. â€Å"It would seem he has met some trouble on the road. My lord father is quite vexed. You would not perchance have any notion of who might have wished my brother ill, would you?† â€Å"Your brother has been taken at my command, to answer for his crimes,† Ned Stark said. Littlefinger groaned in dismay. â€Å"My lords—† Ser Jaime ripped his longsword from its sheath and urged his stallion forward. â€Å"Show me your steel, Lord Eddard. I'll butcher you like Aerys if I must, but I'd sooner you died with a blade in your hand.† He gave Littlefinger a cool, contemptuous glance. â€Å"Lord Baelish, I'd leave here in some haste if I did not care to get bloodstains on my costly clothing.† Littlefinger did not need to be urged. â€Å"I will bring the City Watch,† he promised Ned. The Lannister line parted to let him through, and closed behind him. Littlefinger put his heels to his mare and vanished around a corner. Ned's men had drawn their swords, but they were three against twenty. Eyes watched from nearby windows and doors, but no one was about to intervene. His party was mounted, the Lannisters on foot save for Jaime himself. A charge might win them free, but it seemed to Eddard Stark that they had a surer, safer tactic. â€Å"Kill me,† he warned the Kingslayer, â€Å"and Catelyn will most certainly slay Tyrion.† Jaime Lannister poked at Ned's chest with the gilded sword that had sipped the blood of the last of the Dragonkings. â€Å"Would she? The noble Catelyn Tully of Riverrun murder a hostage? I think . . . not.† He sighed. â€Å"But I am not willing to chance my brother's life on a woman's honor.† Jaime slid the golden sword into its sheath. â€Å"So I suppose I'll let you run back to Robert to tell him how I frightened you. I wonder if he'll care.† Jaime pushed his wet hair back with his fingers and wheeled his horse around. When he was beyond the line of swordsmen, he glanced back at his captain. â€Å"Tregar, see that no harm comes to Lord Stark.† â€Å"As you say, m'lord.† â€Å"Still . . . we wouldn't want him to leave here entirely unchastened, so†Ã¢â‚¬â€through the night and the rain, he glimpsed the white of Jaime's smile—†kill his men.† â€Å"No!† Ned Stark screamed, clawing for his sword. Jaime was already cantering off down the street as he heard Wyl shout. Men closed from both sides. Ned rode one down, cutting at phantoms in red cloaks who gave way before him. Jory Cassel put his heels into his mount and charged. A steel-shod hoof caught a Lannister guardsman in the face with a sickening crunch. A second man reeled away and for an instant Jory was free. Wyl cursed as they pulled him off his dying horse, swords slashing in the rain. Ned galloped to him, bringing his longsword down on Tregar's helm. The jolt of impact made him grit his teeth. Tregar stumbled to his knees, his lion crest sheared in half, blood running down his face. Heward was hacking at the hands that had seized his bridle when a spear caught him in the belly. Suddenly Jory was back among them, a red rain flying from his sword. â€Å"No!† Ned shouted. â€Å"Jory, away!† Ned's horse slipped under him and came crashing down in th e mud. There was a moment of blinding pain and the taste of blood in his mouth. He saw them cut the legs from Jory's mount and drag him to the earth, swords rising and failing as they closed in around him. When Ned's horse lurched back to its feet, he tried to rise, only to fall again, choking on his scream. He could see the splintered bone poking through his calf. It was the last thing he saw for a time. The rain came down and down and down. When he opened his eyes again, Lord Eddard Stark was alone with his dead. His horse moved closer, caught the rank scent of blood, and galloped away. Ned began to drag himself through the mud, gritting his teeth at the agony in his leg. It seemed to take years. Faces watched from candlelit windows, and people began to emerge from alleys and doors, but no one moved to help. Littlefinger and the City Watch found him there in the street, cradling Jory Cassel's body in his arms. Somewhere the gold cloaks found a litter, but the trip back to the castle was a blur of agony, and Ned lost consciousness more than once. He remembered seeing the Red Keep looming ahead of him in the first grey light of dawn. The rain had darkened the pale pink stone of the massive walls to the color of blood. Then Grand Maester Pycelle was looming over him, holding a cup, whispering, â€Å"Drink, my lord. Here. The milk of the poppy, for your pain.† He remembered swallowing, and Pycelle was telling someone to heat the wine to boiling and fetch him clean silk, and that was the last he knew.