The themes of langston hughes Essays - Bioethics, Medical Ethics

The themes of langston hughes Enhancing Humans through Science Is Beneficial Are designer babies the scientific answer to eliminating crucial diseasesthat are transmitted through genes or is it the Eugenics of the future? Since mankind now has the option to alter genes, sex, physical appearance and intellect, are we playing God? And what families and social class would be able to afford this type of procedure? What constitutes good health is arguable.Scientists have various theories when it comes to genetic engineering for the cure of certain diseases. Inseveral countries in Europe, the practice of Eugenics is performed on parents who are susceptible to giving birth to Down Syndrome children. These tests are mandatory, and coercion is used on the parents to abort the fetus that has tested positive for Down Syndrome disease. The reasoning behind the coercion practiceis that it is cost efficient forthe government to eliminate these births for health insurance purposes and to maintain the mass population intelligence level. There are two modern examples of this. In the United States, the practice of Planned Parenthood was considered Eugenics and in Germany, Hitler practices of genocide were forms of Eugenics. Since genetic engineering is not a natural act, it is considered Eugenics. For so many years, there were families who were unable to conceive children naturally; therefore, their alternative choices were to seek help from scientific labs that provide the technology to impregnate women. One of the ways is genetic engineering combined with IVF (In Vitro Fertilization). As scientists began focusing on genetic engineering, the bar was pushed to where parents are able to choose the sex of their baby. Scientists are experimenting with genes which will give parents a choice of choosingevery trait to make a perfect baby/child. The upside to this act is the chosen gene will not disease free. The downside is genetic engineering is altering the natural way of conception and parenting of children. I find parents who use genetic engineering to designing their babies unethical. The fetus which receives these choice genes, have their future carved out for them by their parents. There are so many things that may go wrong with a designer baby. Who is to say the genes chosen, would produce the intended designer baby? The parents may get a child, a healthy baby, that is, disease free, but not of their choosing, such as eye and hair color or intellect. Lets say there is a possibility these babies will grow up and meet their parents initial potential, but find themselves superior to other children who do not perform academically as well as them. This can be the start of segregation among social classes.It could bring to life some science fiction literature as shown in novels like, Brave New World and The Hunger Games. When parents start to manipulate what is natural, they contribute to Darwins idea of perfection, an unblemished society. Since parenting does not come with instructions, each stage of the of the newborns development is a trial and error. The definition of being a parent is nurturing and raising your baby to become a healthy and productive individual. (Farlex) In reality the only families that can afford to indulge in these scientific practices will be wealthy individuals. Scientific technology is already available for those who want to alter some part of their bodies in which they are dissatisfied with, and some health insurances cover some cosmetic surgeries, but I feel they should not cover individuals who want to design an embryo to rise as their own. The cost of manufacturing embryos,which includes choosing sexes, talents and race, will become very expensive. In reality the expense may lower the demand for the genetic engineering and the intent which it was meant, will no longer be valid. Will the outcome of exploring these scientific developments wipe out disorders from the beginning? It has not been proven that using genetic engineering is safe to use on human beings to cure diseases. Whos to say that using this practice will not encourage prejudice, not among the races, but among those individuals who are deemed to be superior. It will set up a new class of genetically designed people and naturally made people. (Ahmad) This separation may cause another type

Barry Bonds Essay Essay Example

Barry Bonds Essay Essay Example Barry Bonds Essay Essay Barry Bonds Essay Essay Barry Bonds is the best baseball participant of all clip. Even before people accused him of utilizing steroids. Chemical bonds complete things on the baseball field that most can merely woolgather of. Chemical bonds started his calling in the National League in 1986. as a member of the Pittsburg Pirates. His first four old ages in the League started slow and his Numberss were really mean for an every-day MLB participant. From so on out. there was nil norm about Bonds’ calling. Throughout the following 10 old ages. from 1990-1999. Bonds’ Numberss increased dramatically across the board. He eclipsed 140 hits and 90 walks 8 out of 10 old ages. The exclusions were the 1994 and ’99 season. in which he merely played 112 and 102 games severally. due to injury. His norm on base per centum for those 10 seasons was. 432. This means over this 10 twelvemonth span Bonds got on base over 43 % of the clip he came to bat. For those of you who don’t know baseball. that is a pathetic per centum. He besides exceeded 100 RBI’s in all 8 of the old ages he surpassed 140 hits and 90 walks. Along with acquiring on base and exceeding 100 RBI’s on the regular. Chemical bonds could besides steal bases and play the field at a high degree. From 1990-1999. Chemical bonds stole over 30 bases 6 out of 10 seasons and neer committed more than 6 mistakes in a individual season. Barry Bonds is most-known for his ability to hit place tallies. Hiting more than 25 10s out of 10 times and more than 40 three times throughout this 10 twelvemonth period. Bonds was one of the most fecund place tally batters of his clip. even before the steroid accusals started to stack up. Although he was really good at it. hitting place tallies clearly wasn’t his lone ability. Chemical bonds should be remembered for his overall ability as a baseball participant instead than merely hitting place tallies. This becomes most evident when one views his broad assortment of terminal of season awards. During this 10 twelvemonth span I’ve been mentioning to. Chemical bonds finished in the top 5 in MVP voting 7 out of 10 old ages. winning it 3 times. He won the Gold Glove for his place 8 times. the Silver Slugger 6 times and was elected to the MLB All-Star game 8 times. Although Bonds’ calling became really confrontational in ulterior old ages. his Numberss during his early old ages in the conference stack up to the likes of Willie Mays and Hank Aaron. and that’s stating a batch. Yes he may hold done steroids. but even when he wasn’t utilizing. Bonds was still an all clip great.

Lesson 4.3 -Outlines Essay Example | Topics and Well Written Essays - 500 words

Lesson 4.3 -Outlines - Essay Example The topic on climate change is growing with each day; this is due to the adverse effects felt in regions that are worse hit by the problem, resulting into drought unpredictable rainfalls poor harvests for some regions and poor air quality resulting from pollution. Thesis statement: This paper will aim at solving the problem of climate change through going through the progress of the problem, its origin and giving suggestions as to how the problem can be fixed and its effects eradicated from the face of the earth. This is not a new topic; hence, some reference will be given from already existing contributions made towards fixing the problem. This is the unpredictable weather patterns as to what has been observed over long periods. The various aspects of human life that have and are still contributing to climate change necessitate this. However, some groups and scientists are of the opinion that climate change is not manmade and that it is part of normal changes within the solar system. This paper will provide evidence that climate change is manmade and can be controlled. Climate change did not exist in the early days; this problem was realised not long ago through the effects it portrayed. Climate change and pollution of the environment have a direct link to each other, hence it is right to say climate change is a result of pollution and that human beings or manmade activities result in pollution of the environment. That translates to the fact that climate change is manmade. There are gases that are released into the atmosphere as a result of human activity through burning of fossil fuels that end up polluting the air and causing effects such as warming around the world that ends up melting the ice caps. This is finally manifested through flush floods and rise in sea levels having negative impact on the people living near large water bodies. As it is indicated through the paper, climate change is as a result of human

PANC-1 cell line Essay Example | Topics and Well Written Essays - 1250 words

PANC-1 cell line - Essay Example nts who go through the resection and have the free margins of tumor, the reported 5-year rate of survival can only be between ten to twenty five percent (Ke, Wang, Xu, and Abassi, 2011). Whenever the pancreatic cancer turns to be metastatic, it becomes uniformly fatal having an overall survival of approximately six months from the time of diagnosis (Blackburn, Vay Liang, and Milner, 2011). For the past thirty years a combined method of radiotherapy, surgery, and chemotherapy have been applied in treating pancreatic cancer (Mani, Guo, & Liao, 2008). However, there has been no huge improvement in the rate of survival. This means that a powerful therapeutic method is required. In attempts of obtaining an appropriate therapeutic strategy for pancreatic cancer, this paper investigates the effect of caffeine on the PANC-1 cells. Pancreatic Cancer is one of the leading causes of deaths in world. Even with recent efforts to come up with modalities, the rate of mortality remains being high. Caffeine can be used in treating this illness, even though the molecular mechanisms of the agents are not understood fully. This is, to some extent, responsible for the failing of these agents in treating pancreatic cancer. In a study conducted in this field, PANC –1 mutant p53 was used in investigating the influence of caffeine on the growth of cells and the effect on cell modulation cycle and the gene apoptosis relation (RÃ ¼ckert, Werner, & Aust, 2012). The extraction of proteins from these cells was treated 4 mM of Caffeine was put to a western blot analysis. The cells of drug treating were analyzed for the calculation of the number of those cells that experience apoptosis. In the observation, the study found out the time and dose dependent inhibition of growth was seen in the PANC cells after the treatment with caffeine (Mani, Guo, & Liao, 2008). The analysis by the western blot displayed an up regulation of the p21WAF1 in the cell lines that were treated with caffeine. In

Regional dialects Essay Example | Topics and Well Written Essays - 500 words

Regional dialects - Essay Example This signifies that a linguistics change is happening in Wisconsin. It is a phenomenon that they call the â€Å"Northern Cities Shift.† The first settlers in Wisconsin were from Europe. The English dialect spoken in Wisconsin was influenced by languages that do not regularly use or contain the â€Å"th† sound; "German, Polish, Finnish, Norwegian, Swedish, Spanish, French, Italian . . .   Its not that common,† Says Luanne von Schneidemesser ( Tolan, 2008). A Germanic word used in Wisconsin is â€Å"gemuetlichkeit† which has no real English equivalent. It means that one is festively drinking beer with friends. â€Å"Gesundheit† is another word in Wisconsin meaning â€Å"good health† when somebody sneezes. Around the United States there are plenty of words that are derived from other countries being used in particular dialects. In southwestern United States, many from Mexican descent speak in â€Å"Chicano English†. It is a mixture of English with Spanish derivatives and not all speakers of Chicano English speak Spanish. English speakers may adopt words such as â€Å"hola,† hello, â€Å"casa,† home, or â€Å"hombre,† a male

Role of Regulation of Breathing

Role of Regulation of Breathing UAC 1.2: Detail the role of the regulation of breathing. Question 1: During exercise, the rate of breathing increases. How does the body detect, coordinate and respond to increase pulmonary ventilation and why is it important? (250 words max) When exercising the pulmonary ventilation rate and depth expands so oxygen can diffuse from the air to the blood quicker and carbon dioxide can diffuse from the blood to the air faster. The brain is ultimately in charge of breathing; the brain stem utilises sensors to manage breathing. Breathing results from coordination of three interactions; a sensory system, respiratory control centre and an effector system. These sensors, called chemoreceptors are supported by nerves and muscles. Chemoreceptors recognise chemical substances and pass this data to the nerves in the central nervous system. During exercise there is an expansion in carbon dioxide which causes a reduction in the pH of blood. The additional carbon dioxide in the blood is detected by the chemoreceptors. Because of a diminishing in the pH, the respiratory control centre in the medulla, sends nervous impulses which instruct the intercostal muscles and diaphragm to contract harder and all the more often, which increase the breathing rate and the volume of the lungs during inhalation. Working together, the body is continually monitoring and adjusting pH and oxygen in the arterial blood. Breathing endeavours to maintain stability. Elevated amounts of carbon dioxide triggers speedier and more profound breathing. This expanded breathing reduces the concentration of carbon dioxide in the blood increasing the measure of oxygen taken in. UAC 2.1: Explain the process of ventilation including detail of lung volumes and capacities. Question 2: Explain, using Figure 1, how a human body inhales and exhales air. Include explanations of vital capacity, residual volume, tidal volume, ventilation rate and pulmonary ventilation. (350 words max) Figure 1: Spirometer trace Pulmonary ventilation is the movement of air into and out of the lungs. It is activated by the changes to the volume and air pressure in the lungs. There are two phases of ventilation: Inhalation is the admission of air into the lungs through the expansion of the chest volume and exhalation is the removal of air from the lungs through contraction of the chest volume. During inhalation the diaphragm contracts, simultaneously the intercostal muscles allow the rib confine to raise. This creates a drop in the pressure inside the lungs and extends the chest cavity, subsequently expanding the lung volume making a partial vacuum causing air to be passively drawn into the lungs from the respiratory tract to fill that space. The reverse occurs during exhalation. The muscles no longer contract and are relaxed. The diaphragm curves and raises, the intercostal muscles descend and the chest volume decreases. The chest cavity contracts therefore increased air pressure, causing the air in the lungs to be expelled passively through the upper respiratory tract. This is known as the tidal volume which is the volume of air took in and out in one breath when at rest. Sufficiency of ventilation is measured by a spirometer, (an instrument for recording volumes of air taken in and breathed out). Figure 1 demonstrates a following of a spirogram. Each breath invigorates a quantity of the air in the lungs and carries away a quantity of the carbon dioxide made by the body. Air moves in and out of the lungs around 12 times per minute in the average person as the diaphragm and intercostal muscles contract and relax, this is the ventilation rate and is calculated by the number of peaks in one minute. At the point when a person breathes in and out profoundly then considerably more air can be exchanged, this is known as vital capacity. The oxygen take-up is different as the carbon dioxide is expelled, the tidal volume in the air chamber decreases. The volume of air removed is shown by the distinction in height of the last peak from the first peak amid ordinary breathing. There is constantly some air left in the lungs that cannot be exchanged in light of the fact that the alveoli do not completely collapse; this is known as the residual volume. UAC 2.2: Explain the characteristics of efficient gaseous exchange and show with reference to diagrams how this is achieved in the lungs and capillaries. Question 3: Explain, using Figure 2, how the structures of the lungs and capillaries are adapted for efficient gas exchange. (450 words max) Figure 2: Diagram of an alveolus The lungs are adapted for the effective gas exchange; the exchange surface must have the ability to exchange gases quickly enough to oblige the requirements of the cells. The lungs contain a huge number of tiny, air-filled sacs called alveoli. Within the alveoli, an exchange of gases happens between the gases inside the alveoli and the blood by passive diffusion. The alveoli are adapted to make gas exchange in the lungs happen effectively and proficiently. The walls of the alveoli are a single cell thick and are made of flattened epithelial cells, making the exchange surface thin which shortens the diffusion pathway over which gases need to make. In order to maximise the amount of diffusion taking place, the alveoli are folded up truly fine, giving an expansive surface area. This means more gas can be exchanged at the same time and it happens speedier which implies the lungs can ventilate faster. The alveoli have a moist layer; this moisture is passed through the cell membrane of the alveolar cells. The alveoli are kept moist to dissolve gases. The moist lining additionally diminishes the surface strain, which means less energy is required to inflate the alveoli and prevents the collapse of alveoli. Every alveolus is encompassed by numerous capillaries; these capillaries are slender so that the red blood cells are squeezed against the capilla ry wall giving a good blood supply, therefore giving a short diffusion pathway. For the exchange of gases to be fast, a steep diffusion gradient is required. The concentration gradient is the distinction in concentration between two focuses. This is to guarantee the molecules diffuse quickly and in the correct bearing. In the lungs the presence of a very thin permeable diffusion pathway of just two flattened cells helps to create a steep concentration gradient. Every alveolus is ventilated, evacuating waste carbon dioxide and replenishing oxygen levels in the alveolar air. The blood arriving in the alveoli has a higher carbon dioxide concentration which is delivered amid breath by the bodys cells. However, the air in the alveoli has a much lower concentration of carbon dioxide, which means there is a concentration gradient which permits carbon dioxide to diffuse out of the blood and into the alveolar air. Similarly, blood arriving in the alveoli has a lower oxygen concentration, as it has been utilised for respiration by the cells of the body, while the air in the alveoli has a higher concentration. Consequently, oxygen moves into the blood by diffusion and integrates with the haemoglobin in red blood cells. This continual supply of gas to one side of the exchange source and its expulsion from the alternative side ensures that diffusion, and therefore exchange, can proceed.  ­Ã‚ ­ References Grant, A. Waugh, A. (2014) Ross Wilson Anatomy Physicology in Health and Illness. 12th edn. Churchill Livingstone. Cohen, B. Hull, K. (2015). Memmlers The Human Body in Health Disease. 13th edn. Wolters Kluwer. Kennedy, P. Sochacki, F. (2008). OCR Biology. Heinemann. Boundless. Lung Capacity and Volume. Boundless Anatomy and Physiology Boundless, 07 Nov. 2016. Available at: https://www.boundless.com/physiology/textbooks/boundless-anatomy-and-physiology-textbook/respiratory-system-22/nonrespiratory-lung-functions-209/lung-capacity-and-volume-1029-9200/ (Accessed 10 March 2017). Boundless. Chemoreceptor Regulation of Breathing. Boundless Anatomy and Physiology Boundless, 21 Sep. 2016. Available at: https://www.boundless.com/physiology/textbooks/boundless-anatomy-and-physiology-textbook/respiratory-system-22/respiration-control-212/chemoreceptor-regulation-of-breathing-1039-6384/ (Accessed 10 March 2017). A Level Notes (2016). Available at: http://alevelnotes.com/The-Lungs/169?tree= (Accessed on 10 March 2017). BBC (2014). Available at: http://www.bbc.co.uk/schools/gcsebitesize/pe/appliedanatomy/1_anatomy_respiratorysys_rev1.shtml (Accessed on 8 March 2017). BBC Bitesize (2014). Available at: http://www.bbc.co.uk/bitesize/standard/biology/the_body_in_action/the_need_for_energy/revision/3/ (Accessed on 8 March 2017. BBC Bitesize (2014). Available at: http://www.bbc.co.uk/education/guides/zm6rd2p/revision/1 (Accessed on 8 March 2017). Quizlet (2017). Available at: https://quizlet.com/16078421/stages-of-aerobic-cellular-respiration-flash-cards/ (Accessed on 8 March 2017).      Ã‚   Khan Academy (2017). Available at: https://www.khanacademy.org/science/biology/cellular-respiration-and-fermentation/overview-of-cellular-respiration-steps/a/steps-of-cellular-respiration (Accessed on 7 March 2017). BBC Bitesize (2014). Available at: http://www.bbc.co.uk/bitesize/higher/biology/cell_biology/respiration/revision/1/ (Accessed on 5 March 2017).

Bush :: essays research papers

American Government Bush’s Address Before this speech I didn’t know what to think about Bush as a president. After reading his speech my view on him has changed greatly. Not only did talk about the American people but also other countries. Through out his speech he pleased both the anti-war Americans but the pro-war American’s also. Bush has a lot of respect, or bravery for saying that "the United States respects the people of Afghanistan--after all, we are currently its largest source of humanitarian aid--but we condemn the Taliban regime". It shows that he has his thoughts all collected and he is not rushing and attacking and putting blame on the people of Afganistan. He still has concerned for them, that they are just repressing their own people He tried to please every American by being saying there will be a war but not like other wars. By saying â€Å"Our response involves far more than instance retaliation and isolated strikes. Americans should not expect one battle, but a lengthy campaign unlike any other we have even seen.† He went on to say that it’s not a war against Afganistan but a war on terrorists'. I liked how bush puts his foot down and threatens the Taliban. Demanding them to close permanently every terrorist training camp and hand over every terrorist and everyone who participated to the proper authority. Saying that his demands are not open to negotiation or discussion so they must turn in the terrorists or "or they will share in their fate. He is threatening them but also has enough bravery to do it considering what they have already done In the last part of his speech he goes on how "we will come together† to strengthen American and so on then how he hopes that in the months ahead life returns to almost normal but how "our resolve must not pass". We will always remember that day and to whom it happened. I also liked how Bush showed the police shield of a man named George Howard, who died at the W. trade center trying to save others and how "This is my reminder of lives that ended, and a task that does not end. Then he ends it with how he will not yield, will not rest for the freedom and security for the