Sunday, January 19, 2020

Difficulties of Obtaining a Divorce in Victorian England Essays

Bound in Union: The Difficulties of Obtaining a Divorce in Victorian England Divorce Legislation of the Victorian * 1839: Child Custody Act- Women, if proven innocent of adultery, could obtain custody of their children under seven. (Previously custody had been, without exception, awarded to the father.) * 1857: Matrimonial Causes Act- established regulations for secular divorce, making civil divorce, rather than divorce by act of Parliament, possible. Also outlined grounds for divorce, which differed for men and women, and secured property rights for divorced women. * 1870: Married Women’s Property Act- Allowed women to keep their earnings and inheritance along with small sums of money, though all other property fell to the husband. * 1873: Custody Acts- Women could gain custody of children up to 16 years of age even when adulteresses * 1882: Married Women’s Property Act-Women could keep all property, real and personal acquired before and after marriage. * 1884: Matrimonial Causes Act- Allowed wives of adulterers to immediately petition for a divorce rather than waiting the formerly required two years * 1886: Custody reforms granted mothers automatic custody of children after the death of the father. (Legal Milestones for Women 1832-1928) Divorce rates during the Victorian Period remained significantly lower than those of the present. Only one in ten women divorced once married due to several contributing circumstances (â€Å"Life for Women†). The law, religious doctrine, societal stigma, and the limited financial opportunities available to women all functioned as deterrents to divorce. Yet despite the encumbrances and inequity inherent in Victorian divorce, legislation made significant stride... ...orce in Australia. The beginning of his paper focuses on how Victorian England’s laws affected Australia, and the paper remains throughout intriguing and informative. Works Cited "Life for Women." Victoria's Past. 3 January 2005. 16 Mar. 2005 . Finlay, Henry. "Divorce and the Status of Women." 16 Mar. 2005 . "Legal Milestones for Women 1832-1928." 16 Mar. 2005 . Feinberg, Patricia. "The Divorce Bill." March 2001. Victorians Uncovered. 16 Mar. 2005 . Ziembra, Melissa. "Marriage and Divorce in Victorian England." 16 Mar. 2005 .

Saturday, January 11, 2020

Research Literature Review Breast Cancer in USA Essay

Introduction Breast cancer continues to be an important focus of attention for medical professionals, policy-makers and general public in the US. The high incidence of the disease and its devastating, in many cases, fatal, outcomes rivet the attention of the professional public. Studies identified for this literature review are for the most part practically oriented, in the sense that they deal with topics that are of primary importance in detecting, treating, and preventing breast cancer. Thus, two sources deal with the programs aimed at women education in the US concerning breast cancer, and two others cover the research into environmental causes of breast cancer. The problem of treatment options for breast cancer is also considered. Education Programs In the US where the population is extremely diverse, creation of special education programs targeting various population groups in accordance with their status is of special importance. Armando Valdez, Kakoli Banerjee, Lynn Ackerson, and Maria Fernandez in their article â€Å"Multimedia breast cancer education intervention for low-income Latinas† outline a special program aimed at the segment of women including Latino women. The problem with detection and early treatment of cancer among Latino women is connected to the fact that Latina women’s screening rate is considerably lower the required government standards and the rate for other ethnic groups. The researchers arrive at the conclusion that, given the availability of subsidized mammograms for poor Latina women, the main deterrent for improvement in the screening rate is lack of knowledge about cancer risks and treatment options. Complicated level of education materials prepared for the target group by the American Cancer Society was identified as an important factor blocking the access of Latina women to adequate information as materials presented often required a superior level of reading skills and the materials were not prepared in Spanish. The paper reports â€Å"the results of a multimedia breast cancer education intervention, tailored to the needs of low-education, low-income Latinas, and attempt to document specific changes in women’s knowledge, attitudes and intentions toward mammography screening† (Valdez et al., 2002). Using the Breast Cancer Multimedia Kiosk including instructional videos exposing the target group to the dangers of breast cancer, the authors were able to conclude that interactive multimedia technologies are an effective tool in raising awareness of cancer risks among low-income women. Although the women had some prior knowledge of cancer (â€Å"the majority of baseline study participants (over 80%) knew age and family history as risk factors†), the post-exposure assessment revealed a significant increase in knowledge after the program. Krystal Ngoc-Thy Luong and Jenny K. Yi in â€Å"Apartment-Based Breast Cancer Education Program for Low Income Vietnamese American Women† evaluate a similar program targeting a different ethnic group. As in the case with Latina women, breast cancer is the leading cause of death in this subgroup. Although Asian/Pacific Islander American, or APIA, women have a lower incidence rate of breast cancer (102.0 per 100,000 versus 140.8 per 100,000 for White American women), exposure to Western lifestyle tends to push these rates up. In addition, APIA women tend to be younger when diagnosed with breast cancer than other categories. The study aimed â€Å"to develop, implement, and evaluate the effect of an apartment-based breast cancer educational program for the hard to reach low income Vietnamese women† (Luong, Yi, 2005). The program was designed to be based on apartment visits as it provided a convenient way to reach women, covering neighbourhoods with high concentration of Vietnamese families in Houston. The intervention was carried out by two educators who delivered 20 educational sessions over the period of 3 months that provided the Vietnamese women with information concerning screening, recommendations and referrals to screening. Women were supplied with promotional materials including printed educational information and videos. Measurement of the knowledge levels through telephone surveys concerning breast cancer issues demonstrated that they were â€Å"significantly higher in the intervention group after receiving education about breast cancer when compared to women in the control group† (Luong, Yi, 2005). The researchers drew the conclusion that an apartment-based program has many advantages as compared to other ones because it addresses women in comfortable home settings, giving them a chance to relax and open up more to the conversation with the educator. Environmental Hazards and Breast Cancer Another important direction of research concerns the impact of pollutants and other environmental factors on incidence of breast cancer in women. Thus, Peggy Reynolds, Susan E. Hurley, Robert B. Gunier, Sauda Yerabati, Thu Quach, and Andrew Hertz in â€Å"Residential Proximity to Agricultural Pesticide Use and Incidence of Breast Cancer in California, 1988-1997† evaluate the connection between the facts that California is the most important agricultural state and also demonstrates the highest breast cancer rates in the US. The purpose of the study was formulated as desire to find out â€Å"whether California breast cancer rates were elevated in areas with recent high agricultural pesticide use† (Reynolds et al., 2005). The research was based on the assessment of 176,302 invasive breast cancer cases including â€Å"70,968,598 person-years of observation† (Reynolds et al., 2005). Using Poisson regression analyses, the authors were not able to find a consistent link between living close to the areas of pesticide distribution and having breast cancer. The upshot of the study was that breast cancer was hardly driven by pesticide use, but was more closely related to various social factors such as socioeconomic status. Julia Green Brody and Ruthann A. Rudel in â€Å"Environmental pollutants and breast cancer† address a wider ranger of substances that can lead to breast tumors. The proliferation of breast cancer in North America has caused the need to look for more sources of this disease, examining a wider range of factors. The study covers â€Å"chemicals that may be breast carcinogens, promote growth of breast cells and hormonally sensitive tumors, or affect mammary gland development and susceptibility† (Brody, Rudel, 2003). The researchers identify already known breast cancer risk factors including reproductive factors, exposure to pharmaceutical hormones, diet, ionizing radiation, socioeconomic status and posited the need to identify more factors. Thus, the scholars point to the need to further investigate the risk associated with occupational hazards including exposure â€Å"to the mammary carcinogens benzene, PAHs, and certain organic solvents† (Brody, Rudel, 2003). For instance, speaking of organic solvents, one study identified a connection between breast cancer rates in Danish women and their exposure to these substances in the workplace. The research, after examining 7,802 women with cancer diagnosis, registered a 20-66% rise in breast cancer risk for women who have been employed in occupations that envisaged active exposure to organic solvents. Other studies demonstrated increased risk of breast cancer development for women employed in the chemical industry, textile manufacturing, or nuclear power plants. The authors conclude by saying that more research is needed in the area, but the literature available so far clearly indicates that the link exists between cancer rates and environmental factors. Treatment Options Finally, another issue which has been identified to inspire researchers is the availability of treatment options for cancer and choice between various alternatives. Kathleen B. Donaghy in â€Å"Fostering Sound Medical Treatment Decision Making: A Focusing on Treatment Choices for Breast Cancer† explores this problem. Invoking the decision-making theory, the author evaluates the potential for adequate decision-making in patients struck with this shocking diagnosis. Donaghy (2003) believes that hasty decisions concerning treatment options made on insufficient information are often regretted by the patient later on. As common deterrents that prevent responsible decision-making she identifies five key points: 1.) cognitive overload 2.) failure to fully comprehend treatment options 3.) inability or refusal to process information in the presence of a denial defense 4.) hurried presentation of information by the physician 5.) self-imposed time constraints to get decisions made. (Donaghy, 2003) The article identifies the key strategies that can be employed by the physician to help the patient in the choice, such as providing maximal possible information to guide the patient’s decisions, improving communication, framing information in an appropriate format, obtaining informed consent etc. Using the decision theory to define decision-making as a choice between status quo and other alternatives shed light on patient values that can be involved in decisions regarding breast surgery. Conclusion The pervasiveness of breast cancer in the US makes research related to the issue highly topical. Examination of causes including environmental factors can help craft governmental policies that will prevent the spread of the deadly disease. On the other hand, developing policies aimed at early detection and effective treatment can be instrumental in curbing the death rate from breast cancer. In this light, creation of programs specifically tailored to the needs of individual groups can be an effective solution. Finally, research oriented toward helping the patient make the best decision concerning treatment options will be an important prerequisite of effective treatment programs. References Ackerson, L., Banerjee, K., Fernandez, M., & Valdez, A. (2002). A Multimedia Breast Cancer Education Intervention for Low-Income Latinas. Journal of Community Health 27(1), 33+. Retrieved April 14, 2006, from http://www.questia.com/PM.qst?a=o&d=5000714747 Brody, J.G., & Rudel, R.A. (2003). Environmental Pollutants and Breast Cancer. Environmental Health Perspectives 111(8), 1007+. http://www.questia.com/PM.qst?a=o&d=5002005585 Donaghy, K.B. (2003). Fostering Sound Medical Treatment Decision Making: A Focusing on Treatment Choices for Breast Cancer. Annals of the American Psychotherapy Association 6(4), 6+. Retrieved April 14, 2006, from http://www.questia.com/PM.qst?a=o&d=5002578878 Gunier, G.M., Hertz, A., Hurley, S.E., Quach, T., Reynolds, P., et al. (2005). Residential Proximity to Agricultural Pesticide Use and Incidence of Breast Cancer in California, 1988-1997. Environmental Health Perspectives 113(8), 993+. Retrieved April 14, 2006, from http://www.questia.com/PM.qst?a=o&d=5010885312 Ngoc-Thy Luong, K., & Yi, J.K. (2005). Apartment-Based Breast Cancer Education Program for Low Income Vietnamese American Women. Journal of Community Health 30(5), 2005, 345+. Retrieved April 14, 2006, from http://www.questia.com/PM.qst?a=o&d=5011756419   

Friday, January 3, 2020

International Business A Questionnaire - 1056 Words

International business Question 1 Globalization is based majorly on economic growth, but one amazing fact is that it cannot progress without having a, progressive ecological, impact. The growth of scientific inventions and technology is accompanied with environmental pollution, overutilization of natural resources, and global warming effect among others. Though some may argue that, with the advancement of technology and scientific intervention, there will be less interference with the environment due to the production of new technology, which is less, destructive to the environment; this is untrue because some of the effects mentioned are commonly seen. Globalization also leads to depletion of natural resources, this result from the many gallons of fuel being used daily to run some of the most important machines. Lack natural resource has a diverse impact on some of the operation curried out by foreign businesses. Globalization has an effect on the demographic patterns of most countries especially the developed ones since, the economy is not favorable for a large family; therefore, most parents will opt to raise a few number of children whom they can raise comfortably. The tough economy has led to most developed countries to have a demographic pattern consisting of the aging population. This change in demographic patterns leads to slow development in some developed countries since there will be few young innovative minds to come up with new innovations hence majorShow MoreRelatedAn Investigation Of Online Shopping1621 Words   |  7 Pagesmoney back, whereas it does not happen in the case of a local shop. Also there is a chance of finding bargains in local retail sector. In this research, the influence of online shopping for the International students in NTIC will be studied. Research Question: How does online shopping influence the International students? Literature Review: Case, Burns, and Dick (2001) suggest that knowledge of Internet, salary, and learning background are the main strength predictors of Internet purchases among universityRead MoreResearch Proposal : Online Store for Primark1511 Words   |  7 Pagesconsumer shift from high-street shopping to internet shopping and evaluate how an online store can affect the retail business of Primark. RESEARCH QUESTION The research question of this study is mentioned below in form of hypothesis. H0: Should Primark launch an online shopping store? H1: Should Primark not launch an online shopping store? AREA OF STUDY Managing an online business falls under the category of Innovation and Change management. 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H0: Should Primark launch an online shopping store? H1: Should Primark not launch an online shopping store? AREA OF STUDY Managing an online business falls under the category of Innovation and Change management. LITERATURE REVIEW Since early 1990s, according to ChenRead MoreA Study on Reading Habit and Attitude among Malaysian Students789 Words   |  4 Pagestime spend on reading and activities within their leisure time. A set of survey questionnaire will be distributed to the selected respondents to obtain the relevant information. 1.6 Target user The first target user group consists of students KPTM, Kuala Lumpur which data was gathered from a group of bachelor in IT with International Business student and a group of bachelor in IT with Accounting Business semester 3. 1.7 Limitations There are several limitation factors orRead MoreUsing A Single Advanced System Is Essential For The Successful Processing Of Customer Payment Instructions Essay1306 Words   |  6 Pagessingle advanced system was essential for the successful processing of customer payment instructions. According to Saunders et al. (2007:145), the quantitative method was predominantly used as a synonym for any data collection technique (such as a questionnaire) or data analysis procedure (such as graphs or statistics) that generated or used numerical data. 1.9. Sampling Sampling techniques provide a range of methods that enable the researcher to reduce the amount of data that needs to be collected byRead MoreCase Study : Supply Chain Management1344 Words   |  6 PagesDuring my vacation, at my home town I was given an opportunity to work at Surya International. Surya International is a Hyderabad (Telangana, India) based private limited company operating in the line of distribution since 1996. The company deals with a wide range of wellness products (such as shower enclosures, sanitary ware, shower panels, faucets, etc.) for different social groups in the society. Surya International gained most of its market share by selling brands like Jaquar, Duravit, GabritRead MoreImportance Of Project Management For Construction1129 Words   |  5 Pagescomplexity of the construction process increasing, owners demand accountability and accurate guidance during the entire planning and construction process. The importance of project management to construction derives from the nature of how the industry’s business activities are conducted. Project managers in construction are responsible for the overall success of delivering the owner’s physical development within the constraints of cost, schedule, quality and safety requirements. As such they play a crucialRead MoreImpact Of Globalization On International Marketing1648 Words   |  7 Pages â€Æ' The role of globalisation in international marketing has been evident in the past years. Czinkota et al. (2014) stresses that marketing managers have to confront heightened globalisation of markets and competition. It is because being present in the international level safeguards the viability of the organization against competitors – both in the local and global arena (Czinkota et al., 2014). This being said, managers seek the move to enter new markets across the globe. Entering a newRead MoreA Brief Note On Public Transport And The United Kingdom1590 Words   |  7 Pagespublic transport system plays an important part to enhance the quality of life for citizens with the United Kingdom (Weisbrod Reno, 2009), and further for international students who travel abroad in order to get a better standard of education. It is necessary for them to evaluate how they travel when they start their studies. International students come from different cultures and backgrounds, different values and behaviors, and that is why this research becomes imperative to find out what they

Thursday, December 26, 2019

Trend Analysis and Recommendations for Amorepacific

------------------------------------------------- ____________________________________________________________________________________ ------------------------------------------------- Memorandum To: Partners and Senior Consultants of Naib-Zoob Consulting From: Date: RE: Achieving Amorepacific’s growth objective by adding a product line in the U.S. and expanding to Brazil ______________________________________________________________________________ Since 2008, the economic downturn has slowed down the pace of the development in the cosmetic industry. Amorepacific Corporation, a Korean based cosmetics manufacturer, also earned much lower revenue than expected. I analyzed the changes in industrial trend and developed†¦show more content†¦Therefore, taking different distribution channels would be more effective. In my opinion, the company should distribute its new products through drug stores and online channels. * Recently, CVS and Walgreens focused more on their beauty departments and added more exclusive product lines (â€Å"Global Cosmetics† 44). * Many Americans are â€Å"nesting† at home and spending more time online (â€Å"Global Cosmetics† 46) * Promotion: Word-of-mouth marketing through electronic media Customers become better informed. Regarding to cosmeceutical products, consumers care more about functionality of product. The best way to assure product’s functionality is sharing experience. Therefore, word-of-mouth marketing strategy is effective. The company may use social media including beauty blogs, Facebook, and Twitter. * Mac has over 1.5 million fans on Facebook (â€Å"Beauty† 31). * Beauty blogs provides a more personal interaction for making purchase decision (â€Å"Beauty† 31). Mobile application is another strong method to interact with customers which drives sales online or in store. * The latest L Orà ©alParis app gives more information of the products when people scan the products (â€Å"Beauty† 32). 2. Expanding to Brazil The performance of various brands of Amorepacific Corp in the emerging market – China and several Southeast Asian countries – is noteworthy. The success in those markets is the reason that the company can sustain its growth in spite

Wednesday, December 18, 2019

Analysis of Fahrenheit 451 by Ray Bradbury Essay - 3557 Words

Analysis of Fahrenheit 451 by Ray Bradbury Imagine living in a world where you are not in control of your own thoughts. Imagine living in a world in which all the great thinkers of the past have been blurred from existence. Imagine living in a world where life no longer involves beauty, but instead a controlled system that the government is capable of manipulating. In Ray Bradburys Fahrenheit 451, such a world is brought to the awareness of the reader through a description of the impacts of censorship and forced conformity on people living in a futuristic society. In this society, all works of literature have become a symbol of unnecessary controversy and are outlawed. Individuality and thought is outlawed. The human mind is†¦show more content†¦It was a time of book-burning and close panic, which left Bradbury in disbelief that [we] would go all out and destroy ourselves in this fashion; (Moore 103). The writing of this novel was also an opportunity for Bradbury to speak out against the censorship of written li terature that was taking place by showing the consequences of it. Bradbury believed that the censorship of books destroyed important ideas, knowledge, and opinions and restricted the world from learning about the problems of their culture. His writing came to show that without such knowledge, society could become very passive, which would make it vulnerable to the control and mind manipulating techniques of the government. Ironically enough, this book itself was subject to censorship on its initial release (Touponce 125). These political, social, and military tensions of the 50s lent to Bradburys own tensions, calling him forth to alert the people of their own self-destructive behaviors. The setting in which the story takes place has a significant effect on the theme expressed in the novel. The most notable aspect of the setting is the time at which it is set. The time that Bradbury is trying to illustrate is never simply stated, but rather implied and described through the lives of the characters and the technology available to them. The existence of a four-walled television; (Bradbury 20) and high-speed jet-propelled beetle; cars (Bradbury 9)Show MoreRelatedLiterary Analysis Of Fahrenheit 451, By Ray Bradbury792 Words   |  4 PagesLiterary Analysis of Fahrenheit 451 by Ray Bradbury â€Å"We never burned right†¦Ã¢â‚¬  (Bradbury 113) stated Guy Montag, the main character of Fahrenheit 451. This book is about a society that is oppressive and dictatorial. They depend on firemen to burn books at an attempt at censorship and to block free thinking. They obstruct books and literature as a way to restrict knowledge and understanding. One of the major theme of Fahrenheit 451, written by Ray Bradbury, is as society gains more knowledge and wisdomRead MoreAnalysis Of Ray Bradbury s Fahrenheit 4511743 Words   |  7 PagesIn Fahrenheit 451, by Ray Bradbury, the protagonist, Guy Montag, suddenly realizes his overwhelming discontent with life when he meets Clarisse McClean, a seventeen year old girl who introduces him to beauty of the world and the notion of questioning ones surroundings. This novel, having been released shortly after the Second Read Scare, a time when fear of communism lead to the baseless accusation of political figures by Senator McCarthy, was re ceived with mixed reviews. However, today more so thanRead MoreAnalysis Of Ray Bradbury s Fahrenheit 451 Essay2089 Words   |  9 PagesThe analysis of Ray Bradbury s dystopian novel, Fahrenheit 451, shows that literature as books, education and alike is abused and criminalized in the hero’s reality, who is Guy Montag. The novel’s setting is when new things seem to have totally replaced literature, fire fighters set flames instead of putting them out, the ownership of books is deserving of the law and to restrict the standard is to court demise. The oppression of literature through innovation and technology can be analyzed throughRead MoreAnalysis Of Ray Bradbury s Fahrenheit 451 1396 Words   |  6 PagesAn Analysis of Freedom of Information in Fahrenheit 451 by Ray Bradbury This study examines the issue of freedom of information in the story of literary oppression found in Fahrenheit 451 by Ray Bradbury. Bradbury presents the oppression of an authoritarian state that does not allow its citizens to reads books. Guy Montag is initially a servant of the state that requires him to locate and persecute members of the community that still collect books. In various cases, Bradbury defines the rightsRead MoreCharacter Analysis : Fahrenheit 451, By Ray Bradbury831 Words   |  4 Pages Fahrenheit 451: Character Analysis Fahrenheit 451 by Ray Bradbury, is about a dystopian society that burns literature and everything and anything to keep the civilians distracted from the obstacles of life. Guy Montag is a citizen whose job is to burn down houses that contain literature, for books are illegal because the government says it causes controversy. His wife, Mildred, sits in front of the â€Å"parlor walls† with â€Å"seashells† in her ears and goes along mindlessly with society. ThroughoutRead MoreAnalysis Of Ray Bradbury s Fahrenheit 451 1815 Words   |  8 PagesRay Bradbury was a well-known author who happened to write several novels, books, and short stories. He was very famous and I have never read anything that he wrote, until I read this book. I wasn’t sure what to expect because I had no idea what it was about and what kind of story it told. Fahrenheit 451 told a breathtaking adventure, was relatable, and it was almost as if I was submerged in this dystopian society, who wa s forced to live without imagination, books and a sense of wonder. Mr. BradburyRead MoreAnalysis Of Fahrenheit 451 By Ray Bradbury1387 Words   |  6 Pagesdifferent and so similar in the exact same time†¦ Imagine a society where everything an individual can mentally and physically do is under the power of the government. Self-difference does not exist. In a futuristic setting of the novel ‘Fahrenheit 451’ written by Ray Bradbury, and the short story ‘Harrison Bergeron’ written by Kurt Vonnegut are both two very eventful and interesting readings that will keep one’s mind running on about the outlook on futuristic life and the governments strict needs and wantsRead MoreAnalysis Of Fahrenheit 451 By Ray Bradbury921 Words   |  4 Pagesagree with this statement, for an unorganized essay leads to chaos and misunderstanding. The narrative structure includes exposition, rising action, climax, falling action, and resolution. The narrative struct ure was evident in the novel Fahrenheit 451 by Ray Bradbury. The exposition includes the basic introduction and background information that sets the time, situation, and place of the story. At the beginning of this novel, a futuristic dystopian society is described as the setting where the citizensRead MoreAnalysis Of Fahrenheit 451 By Ray Bradbury1119 Words   |  5 PagesIn the novel Fahrenheit 451 Mildred and Montag reside on polar sides of society, one is a supporter the other is a rebel. Despite their difference, their internal thoughts reveal they are both broken people. Bradbury’s symbolic patterns claims their destruction originated because both of them don’t have dominance over their minds. Mildred’s addiction to her parlor walls disrupts her cognitive presence in reality. As Guy ponders the word living room, he comments â€Å"what a good job of labeling that wasRead MoreAnalysis Of Fahrenheit 451 By Ray Bradbury1379 Words   |  6 PagesVisual media, such as the computer and television distract people from the natural world, and instead blinds them from reality. Fahrenheit 451 exposes the idea that mass visual media initiates problems of violence, unawareness, and ignorance. The advanced technology causes the people of society to stray farther away from reality, and they become trapped in their own world of unawareness. Thus, unlike in nature where everything is free, the advanced technology confines people within the boundaries

Monday, December 9, 2019

Ch17 Blood free essay sample

Blood Objectives Overview: Blood Composition and Functions 1. Describe the composition and physical characteristics of whole blood. Explain why it is classified as a connective tissue. 2. List eight functions of blood. Blood Plasma 3. Discuss the composition and functions of plasma. Formed Elements 4. Describe the structure, function, and production of erythrocytes. 5. Describe the chemical makeup of hemoglobin. 6. Give examples of disorders caused by abnormalities of erythrocytes. Explain what goes wrong in each disorder. 7. List the classes, structural characteristics, and functions of leukocytes. 8. Describe how leukocytes are produced. 9. Give examples of leukocyte disorders, and explain what goes wrong in each disorder. 10. Describe the structure and function of platelets. Hemostasis 11. Describe the processes of hemostasis. List factors that limit clot formation and prevent undesirable clotting. 12. Give examples of hemostatic disorders. Indicate the cause of each condition. Transfusion and Blood Replacement 13. Describe the ABO and Rh blood groups. Explain the basis of transfusion reactions. 14. Describe fluids used to replace blood volume and the circumstances for their use. Diagnostic Blood Tests 15. Explain the diagnostic importance of blood testing. Developmental Aspects of Blood 16. Describe changes in the sites of blood production and in the type of hemoglobin produced after birth. 17. Name some blood disorders that become more common with age. Chapter Outline I. Overview: Blood Composition and Functions (pp. 635–636; Fig. 17. 1) A. Components (p. 635; Fig. 17. 1) 1. Blood is a specialized connective tissue consisting of living cells, called formed elements, suspended in a nonliving fluid matrix, blood plasma. 2. Blood that has been centrifuged separates into three layers: erythrocytes, the buffy coat, and plasma. . The blood hematocrit represents the percentage of erythrocytes in whole blood. B. Physical Characteristics and Volume (p. 635) 1. Blood is a slightly basic (pH = 7. 35–7. 45) fluid that has a higher density and viscosity than water, due to the presence of formed elements. 2. Normal blood volume in males is 5–6 liters, and 4–5 liters for females. C. Functions (pp. 635–636) 1. Blood is the medium for delivery of oxygen and nutrients, removal of metabolic wastes to elimination sites, and distribution of hormones. 2. Blood aids in regulating body temperature, body fluid pH, and fluid volume within fluid compartments. . Blood protects against excessive blood loss through the clotting mechanism, and from infection through the immune system. II. Blood Plasma (p. 636; Table 17. 1) A. Blood plasma consists of mostly water (90%), and solutes including nutrients, gases, hormones, wastes, products of cell activity, ions, and proteins (p. 636; Table 17. 1). B. Plasma proteins account for 8% of plasma solutes, mostly albumin, which function as carriers (p. 636). III. Formed Elements (pp. 637–649; Figs. 17. 2–17. 12; Table 17. 2) A. Erythrocytes (pp. 637–643; Figs. 17. 2–17. 8) 1. Erythrocytes, or red blood cells, are small cells that are biconcave in shape. They lack nuclei and most organelles, and contain mostly hemoglobin. a. Hemoglobin is an oxygen-binding pigment that is responsible for the transport of most of the oxygen in the blood. b. Hemoglobin is made up of the protein globin bound to the red heme pigment. 2. Production of Erythrocytes a. Hematopoiesis, or blood cell formation, occurs in the red bone marrow. b. Erythropoiesis, the formation of erythrocytes, begins when a myeloid stem cell is transformed to a proerythroblast, which develops into mature erythrocytes. . Erythrocyte production is controlled by the hormone erythropoietin. d. Dietary requirements for erythrocyte formation include iron, vitamin B12, and folic acid, as well as proteins, lipids, and carbohydrates. e. Blood cells have a short life span due to the lack of nuclei and organelles; destruction of dead or dying blood cells is accomplished by macrophages. 3. Erythrocyte Disorders a. Anemias are characterized by a deficiency in RBCs. b. Polycythemia is characterized by an abnormal excess of RBCs. B. Leukocytes (pp. 643–648; Figs. 17. 9–17. 11; Table 17. 2) 1. Leukocytes, or white blood cells, are the only formed elements that are complete cells and make up less than 1% of total blood volume. 2. Leukocytes are critical to our defense against disease. 3. Granulocytes are a main group of leukocytes characterized as large cells with lobed nuclei and visibly staining granules; all are phagocytic. a. Neutrophils are the most numerous type of leukocyte. They are chemically attracted to sites of inflammation and are active phagocytes. b. Eosinophils are relatively uncommon and attack parasitic worms. c. Basophils are the least numerous leukocyte and release histamine to promote inflammation. . Agranulocytes are a main group of lymphocytes that lack visibly staining granules. a. T lymphocytes directly attack virus-infected and tumor cells; B lymphocytes produce antibody cells. b. Monocytes become macrophages and activate T lymphocytes. 5. Production and Life Span of Leukocytes a. Leukopoiesis, the formation of white blood cells, is regulated by th e production of interleukins and colony-stimulating factors (CSF). b. Leukopoiesis involves differentiation of hemocytoblasts along two pathways: lymphoid and myeloid stem cells. 6. Leukocyte Disorders a. Leukopenia is an abnormally low white blood cell count. . Leukemias are clones of a single white blood cell that remain unspecialized and divide out of control. c. Infectious mononucleosis is a disease caused by the Epstein-Barr virus. C. Platelets (pp. 648–649; Fig. 17. 12) 1. Platelets are not complete cells, but fragments of large cells called megakaryocytes. 2. Platelets are critical to the clotting process, forming the temporary seal when a blood vessel breaks. 3. Formation of platelets involves repeated mitoses of megakaryocytes without cytokinesis. IV. Hemostasis (pp. 649–654; Figs. 17. 13–17. 14; Table 17. 3) A. A break in a blood vessel stimulates hemostasis, a fast, localized response to reduce blood loss through clotting (p. 649). B. Vascular spasms are the immediate vasoconstriction response to blood vessel injury (p. 649). C. Platelet Plug Formation (pp. 649–650; Fig. 17. 13) 1. When endothelium is damaged, platelets become sticky and spiky, adhering to each other and the damaged vessel wall. 2. Once attached, other platelets are attracted to the site of injury, activating a positive feedback loop for clot formation. D. Coagulation, or blood clotting, is a multistep process in which blood is transformed from a liquid to a gel (pp. 50–652; Figs. 17. 13–17. 14; Table 17. 3). 1. Factors that promote clotting are called clotting factors, or procoagulants; those that inhibit clot formation are called anticoagulants. 2. The clotting process involves three phases: formation of prothrombin activator, conversion of prothrombin to thrombin, and the formation of fibrin mesh fr om fibrinogen in the plasma. a. The intrinsic pathway of clotting is so named because all factors necessary are present within the blood. It is a slower clotting pathway, and may be triggered by negatively charged surfaces, such as activated platelets, collagen, or glass. b. The extrinsic pathway is triggered through an endothelium-derived protein factor, called tissue factor (TF) or factor III, and can occur very rapidly. E. Clot Retraction and Repair (p. 652) 1. Clot retraction is a process in which the contractile proteins within platelets contract and pull on neighboring fibrin strands, squeezing plasma from the clot and pulling damaged tissue edges together. 2. Repair is stimulated by platelet-derived growth factor (PDGF). F. Fibrinolysis removes unneeded clots through the action of the fibrin-digesting enzyme plasmin (p. 652). G. Factors Limiting Clot Growth or Formation (pp. 652–653) 1. Rapidly moving blood disseminates clotting factors before they can initiate a clotting cascade. 2. Thrombin that is not bound to fibrin is inactivated by antithrombin III and protein C, as well as heparin. H. Disorders of Hemostasis (pp. 653–654) 1. Thromboembolytic disorders result from conditions that cause undesirable clotting, such as roughening of vessel endothelium, slow-flowing blood, or blood stasis. 2. Disseminated intravascular coagulation is a situation leading to widespread clotting throughout intact vessels, and may occur as a complication of pregnancy, septicemia, or incompatible blood transfusions. . Bleeding disorders arise from abnormalities that prevent normal clot formation, such as a deficiency in circulating platelets, lack of synthesis of procoagulants, or hemophilia. V. Transfusion and Blood Replacement (pp. 654–657; Fig. 17. 15; Table 17. 4) A. Transfusion of whole blood is routine when blood loss is substantial, or when treating thrombocytopenia (pp. 654–656; Fig. 17. 15; Table 17. 4). 1. Humans have different blood types based on specific antigens on RBC membranes. 2. ABO blood groups are based on the presence or absence of two types of agglutinogens. 3. Preformed antibodies (agglutinins) are present in blood plasma and do not match the individual’s blood. 4. The Rh factor is a group of RBC antigens that are either present in Rh+ blood, or absent in Rh– blood. 5. A transfusion reaction occurs if the infused donor blood type is attacked by the recipient’s blood plasma agglutinins, resulting in agglutination and hemolysis of the donor cells. B. Plasma and blood volume expanders are given in cases of extremely low blood volume (pp. 656–657). VI. Diagnostic Blood Tests (p. 657) A. Changes in some of the visual properties of blood can signal diseases such as anemia, heart disease, and diabetes (p. 57). B. Differential white blood cell counts are used to detect differences in relative amounts of specific blood cell types (p. 657). C. Prothrombin time, which measures the amount of prothrombin in the blood, and platelet counts evaluate the status of the hemostasis system (p. 657). D. SMAC, SMA12–60, and com plete blood count (CBC) give comprehensive values of the condition of the blood (p. 657). VII. Developmental Aspects of Blood (p. 657) A. Prior to birth, blood cell formation occurs within the fetal yolk sac, liver, and spleen, but by the seventh month, red bone marrow is the primary site of hematopoiesis (p. 57). B. Fetal blood cells form hemoglobin-F, which has a higher affinity for oxygen than adult hemoglobin, hemoglobin-A (p. 657). Cross References From Chapters 1-15 Additional information on topics covered in Chapter 17 can be found in the chapters listed below. 1. Chapter 3: Diffusion; osmosis 2. Chapter 4: Tissue repair 3. Chapter 6: Hematopoietic tissue Laboratory Correlations 1. Marieb, E. N. , and S. J. Mitchell. Human Anatomy Physiology Laboratory Manual: Cat and Fetal Pig Versions. Ninth Edition Updates. Benjamin Cummings, 2009. Exercise 29: Blood PhysioExâ„ ¢ 8. Exercise 29B: Blood Analysis: Computer Simulation 2. Marieb, E. N. , and S. J. Mitchell. Human Anatomy Physiology Laboratory Manual: Main Version. Eighth Edition Update. Benjamin Cummings, 2009. Exercise 29: Blood PhysioExâ„ ¢ 8. 0 Exercise 29B: Blood Analysis: Computer Simulation Online Resources for Students myAPâ„ ¢ www. myaandp. com The following shows the organization of the Chapter Guide page in myAPâ„ ¢. The Chapter Guide organizes all the chapter-specific online media resources for Chapter 17 in one convenient location, with e-book links to each section of the textbook. Students can also access AP Flix animations, MP3 Tutor Sessions, Interactive Physiology ® 10-System Suite, Practice Anatomy Labâ„ ¢ 2. 0, PhysioExâ„ ¢ 8. 0, and much more. Objectives Section 17. 1 Overview: Blood Composition and Functions (pp. 635–636) Section 17. 2 Blood Plasma (p. 636) Memory Game: Blood Cells Section 17. 3 Formed Elements (pp. 637–649) MP3 Tutor Session: Hemoglobin: Function and Impact Interactive Physiology ® 10-System Suite: Respiratory System: Gas Transport Memory Game: Identifying the Formed Elements of Blood Case Study: Iron-Deficiency Anemia Case Study: Sickle-Cell Anemia Section 17. Hemostasis (pp. 649–654) Section 17. 5 Transfusion and Blood Replacement (pp. 654–657) Section 17. 6 Diagnostic Blood Tests (p. 657) Section 17. 7 Developmental Aspects of Blood (p. 657) Chapter Summary Crossword Puzzle 17. 1 Crossword Puzzle 17. 2 Crossword Puzzle 17. 3 Web Links Chapter Quizzes Art Labeling Quiz Matching Quiz Multiple-Choi ce Quiz True-False Quiz Chapter Practice Test Study Tools Histology Atlas myeBook Flashcards Glossary Answers to End-of-Chapter Questions Multiple-Choice and Matching Question answers appear in Appendix G of the main text. Short Answer Essay Questions 11. a. The formed elements are living blood cells. The major categories of formed elements are erythrocytes, leukocytes, and platelets. b. The least numerous of the formed elements are the leukocytes. c. The buffy coat in a hematocrit tube comprises the white blood cells and platelets. (p. 635) 12. Hemoglobin is made up of the protein globin bound to the pigment heme. Each molecule contains four polypeptide chains (globins) and four heme groups, each bearing an atom of iron in its center. Its function is to bind oxygen to each iron atom. When oxygen is loaded (bound to hemoglobin), the hemoglobin becomes bright red. When oxygen is unloaded from the iron, the hemoglobin becomes dark red. (p. 638) 13. With a high hematocrit, you would expect the hemoglobin determination to be high, since the hematocrit is the percent of blood made up of RBCs. (p. 635) 14. In addition to carbohydrates for energy and amino acids needed for protein synthesis, the nutrients needed for erythropoiesis are iron and certain B vitamins. (p. 640) 15. a. -In the process of erythropoiesis, a hemocytoblast is transformed into a proerythroblast, which gives rise to early, then late erythroblasts, normoblasts, and reticulocytes. b. The immature cell type released to the circulation is the reticulocyte. c. The reticulocyte differs from a mature erythrocyte in that it still contains some rough ER. (p. 639) 16. The physiological attributes that contribute to the function of white blood cells in the body include the ability to move by amoeboid action, exhibition of positive chemotaxis enabling them to pinpoint areas of tissue damage, diapedesis (moving through capillary walls), and the ability to participate in phagocytosis. (p. 643) 17. a. With a severe infection, the WBC count would be closest to 15,000 WBC/mm3 of blood. . This condition is called leukocytosis. (p. 643) 18. a. Platelets appear as small discoid fragments of large, multinucleated cells called megakaryocytes. They are essential for the clotting process and work by clumping together to form a temporary plug to prevent blood loss. b. Platelets should not be called â€Å"cells† because they are only fragments of cells. (p. 648) 19. a. Literally, hemostasis is â€Å"blood standing still† because it refers to clotted blood. It encompasses the steps that prevent blood loss from blood vessels. (p. 649) b. The three major steps of coagulation include the formation of prothrombin activator by a cascade of activated procoagulants, the use of prothrombin activator enzymatically to release the active enzyme thrombin from prothrombin, and the use of thrombin to cause fibrinogen to form fibrin strands. (pp. 649–652) c. The intrinsic pathway depends on substances present in (intrinsic to) blood. It has many more steps and intermediates, and is slower. The extrinsic mechanism bypasses the early steps of the intrinsic mechanism and is triggered by tissue factor (thromboplastin) released by injured cells in the vessel wall or in surrounding tissues. pp. 650–651) d. Calcium is essential to virtually all stages of coagulation. (p. 651) 20. a. Fibrinolysis is the disposal of clots when healing has occurred. b. The importance of this process is that without it, blood vessels would gradually become occluded by clots that are no longer necessary. (p. 652) 21. a. Clot overgrowth is usuall y prevented by rapid removal of coagulation factors and inhibition of activated clotting factors. (pp. 652–653) b. Two conditions that may lead to unnecessary (and undesirable) clot formation are roughening of the vessel wall endothelium and blood stasis. (p. 653) 22. Bleeding disorders occur when the liver cannot synthesize its usual supply of procoagulants. (p. 653) 23. a. A transfusion reaction involves agglutination of foreign RBCs, leading to clogging of small blood vessels, and lysis of the donated RBCs. It occurs when mismatched blood is transfused. b. Possible consequences include disruption of oxygen-carrying capacity, fever, chills, nausea, vomiting, general toxicity, and renal failure. (p. 656) 24. Among other things, poor nutrition can cause iron-deficiency anemia due to inadequate intake of iron-containing foods or to pernicious anemia due to deficiency of vitamin B12. p. 642) 25. The most common blood-related problems for the aged include chronic types of leukemias, anemias, and thromboembolytic disease. (p. 657) Critical Thinking and Clinical Application Questions 1. Hemopoiesis is a process involving fairly rapid cell production. Because chemotherapeutics simply target cells exhibiting rapid turnover (rather than other specific pro perties of cancer cells), hemopoiesis is a target of chemotherapeutic drugs and must be carefully monitored. (pp. 638–639) 2. a. The woman would probably be given a whole blood transfusion. It is essential that she maintain sufficient O2-carrying capacity to serve fetal needs and blood volume to maintain circulation. b. The blood tests that would be performed include tests for ABO and Rh group antigen and cross matching. (pp. 654–655) 3. a. Polycythemia accounts for his higher erythrocyte count because of the need to produce more RBCs to increase his O2 binding and transport ability in the high-altitude (thinner air) environment of the Alps. Enhanced production of RBCs was prompted by an increased production of erythropoietin. b. His RBC count will not stay higher than normal because the excess production of RBCs will depress erythropoietin production by the kidneys when adequate levels of O2 are being transported in the blood. (p. 643) 4. Janie’s leukocytes are immature or abnormal and are incapable of defending her body in the usual way. (p. 648) 5. Red bone marrow is the site of hemopoiesis, and if it is destroyed by benzene, hemocytoblasts will not be produced, which will reduce the production of megakaryocytes (the progenitor cells of platelets, which are involved in clotting). p. 638) 6. Tyler is turning out a high rate of reticulocytes (immature red blood cells), which accounts for his high hematocrit. (p. 639) 7. An analysis of the clotting process described in the text should reveal that the two blood proteins are thrombin and fibrinogen. (p. 650) 8. An elevated RBC count could be related to smoking, due to the frequent hypoxia that results from inhalation of oxygen-poor cigarette smoke. (p. 6 43) 9. Aspirin is a mild anticoagulant, which could cause excessive bleeding during or after surgery. (p. 653)

Monday, December 2, 2019

Research Proposal on Reading Skills Essay Example

Research Proposal on Reading Skills Essay Reading skills are the skills which are appropriate for people and say much about their intelligence. Reading is the ability to perceive and understand written or printed symbols called letters. People started writing several thousands of years ago and it was a great development of the human civilization and the revolution in the development of knowledge. When people started to record facts about their life and develop different genres of literature, the necessity of being able to read became really urgent. With the run of time people wrote and printed more and more books and the role of a book became really great. For several centuries the book has been the symbol of wisdom and knowledge. Today every child is taught to read, because without reading he will not manage to live in the human society and achieve something in life. Reading touches upon everything people do. Education, health care, art, law, business, finance, engineering, etc. – everything requires well-developed reading skills. Reading skills appear during the long process of teaching and practice. Children have to read much, especially aloud, to be able to read fast and remember the read information. There are special methods which make the process of teaching reading skills faster and more effective. Special techniques enable one read the whole page for a few seconds and remember the whole data. There are courses which teach people to master such skills. We will write a custom essay sample on Research Proposal on Reading Skills specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Research Proposal on Reading Skills specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Research Proposal on Reading Skills specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Reading skills influence the general level of human knowledge and intelligence, so children should be taught reading from the early yearly years. A student who has the task to prepare a good research proposal will need to devote much time to the investigation of the topic to understand the nature and aspects of reading, factors which influence reading. When one understands the general points related with reading, he will be able to create his own methods effective for teaching reading skills. If the methods are useful enough, the research proposal can be considered a successful one and will convince the teacher in the importance of the topic. Very often students face a great number of problems when start writing their research proposals and no wonder, because one should organize an interesting and informative paper and persuade the professor that the chosen topic is worth investigation. The web can help students prepare good papers themselves due to the existence of the free example research proposals on reading skills, which possess proper composition and way of conducting the analysis. It is quite easy to find a well-organized free sample research proposal which can help you organize your thoughts in a good way and make proper structure for your paper, which will illustrate your professional skills. *** NOTE! As far as you know free sample research proposals and examples about Reading are 100% plagiarized!!! At EssayLib.com writing service you can order a custom research proposal on Reading Skills topics. Your research paper proposal will be written from scratch. We hire top-rated Ph.D. and Master’s writers only to provide students with professional research proposal help at affordable rates. Each customer will get a non-plagiarized paper with timely delivery. Just visit our website and fill in the order form with all proposal details: Enjoy our professional research proposal writing service!