Regulation of Conception in Moores How Essay -- Moore How

Regulation of Conception in Moore's How  Ã‚      Lorrie Moore's "How" takes an active stand on love and relationships.   It strongly and clearly rests on the values and ideas that our society holds on the concepts of partnership among a man and woman.   Moore formatted the narrative in such a way that it commands the reader's dependency upon the author's words, makes inevitable foreshadow, and specifically directs our views into the story.   By using the cultural analysis, one will find ways and evidence that assisted Moore in successfully achieving these previously listed.   Those aspects that will be covered include the exterior and interior structure of the narrative, how it sets our views and expectations of the aspects of love and relationships, how that potentially influences our personal thoughts, goals, and actions, how the narrative changes focus, perception, and sympathy on each character, and how the author used allusion to help the reader create visualization.   Ã‚  Ã‚  Ã‚   In "How," the title itself has the reader to automatically look into the story line for information and insight instead of entertainment.   This alone, gives the author the upperhand and ability to feed her ideas into our own.   Like other "how to" texts, off hand, the writer is looked to with much creditability which in turn causes us to absorb and believe more of its context.   Furthermore, "How" is written in a step by step pattern where each thought, action, and time frame is easy to follow and understand.   Moore also uses the word "will" often to state a command.   Within the narrative, Moore states and describes the progression and passage of time.   The events that take place in a relationship are foreshadowed and an inevitability is portrayed.   Also, t... ...ions were relevant to either actual singers, actors, music, or musicals.   Moore made several reference to the violin (991). The violin is closely associated with death.   Theses allusions were made with the female character's fantasies of a funeral and nightmares of her own downfall. Other allusions made were that of Dorothy (992) in the "Wizard of Oz," James Cagney (988 and 991), Ozzie and Harriet (987), Hank Williams (993), Coriolanus (988), and Robert Goulet (989).   Ã‚  Ã‚  Ã‚   "How" is a powerful piece in its ability to catch its reader and directly challenge or influence their ideas.   The format commanded, foreshadowed, and focused on many aspects of love and relationships. Moore specifically directed our attention throughout the narrative.   However, she ended with some freedom for the reader to make their own conclusion and develop their own opinions of the text. Regulation of Conception in Moore's How Essay -- Moore How Regulation of Conception in Moore's How  Ã‚      Lorrie Moore's "How" takes an active stand on love and relationships.   It strongly and clearly rests on the values and ideas that our society holds on the concepts of partnership among a man and woman.   Moore formatted the narrative in such a way that it commands the reader's dependency upon the author's words, makes inevitable foreshadow, and specifically directs our views into the story.   By using the cultural analysis, one will find ways and evidence that assisted Moore in successfully achieving these previously listed.   Those aspects that will be covered include the exterior and interior structure of the narrative, how it sets our views and expectations of the aspects of love and relationships, how that potentially influences our personal thoughts, goals, and actions, how the narrative changes focus, perception, and sympathy on each character, and how the author used allusion to help the reader create visualization.   Ã‚  Ã‚  Ã‚   In "How," the title itself has the reader to automatically look into the story line for information and insight instead of entertainment.   This alone, gives the author the upperhand and ability to feed her ideas into our own.   Like other "how to" texts, off hand, the writer is looked to with much creditability which in turn causes us to absorb and believe more of its context.   Furthermore, "How" is written in a step by step pattern where each thought, action, and time frame is easy to follow and understand.   Moore also uses the word "will" often to state a command.   Within the narrative, Moore states and describes the progression and passage of time.   The events that take place in a relationship are foreshadowed and an inevitability is portrayed.   Also, t... ...ions were relevant to either actual singers, actors, music, or musicals.   Moore made several reference to the violin (991). The violin is closely associated with death.   Theses allusions were made with the female character's fantasies of a funeral and nightmares of her own downfall. Other allusions made were that of Dorothy (992) in the "Wizard of Oz," James Cagney (988 and 991), Ozzie and Harriet (987), Hank Williams (993), Coriolanus (988), and Robert Goulet (989).   Ã‚  Ã‚  Ã‚   "How" is a powerful piece in its ability to catch its reader and directly challenge or influence their ideas.   The format commanded, foreshadowed, and focused on many aspects of love and relationships. Moore specifically directed our attention throughout the narrative.   However, she ended with some freedom for the reader to make their own conclusion and develop their own opinions of the text.

Pathogenic Parasite and Waterborne Diseases in Three Stations

Chapter 1 INTRODUCTION Background of the Study Rivers are the bodies of water bearing an immense biological importance. Though they contain only about 0. 0001% of the total amount of water in the world at any given time, rivers are vital carriers of water and nutrients to areas all around the earth, they are essential components of the hydrological cycle, for they act as drainage channels for surface water and they serve as habitat for various organisms (Hebert, 2011). With rapid increase of the country’s population and urbanization, bodies of water tremendously began to be polluted.This event commenced the contamination of drinking water as well as the widespread occurrence of waterborne diseases. Waterborne diseases are often caused by parasites which are directly transmitted through consuming contaminated drinking water. Any water reserve, infested with pathogenic parasites, used in the preparation of food can be considered as a source of foodborne disease and could be easi ly transmitted through consumption of the same pathogenic parasites. These diseases commonly affect the digestive tract as well as the other vital parts of the body that may be fatal to anyone especially those who are immunocompromised (WHO, 2004).Globally, waterborne diseases such as diarrhea accounts for 1. 5 million deaths annually according to the Centers for Disease Control and Prevention on its report in 2010. It is considered one of the most dangerous diseases that could be acquired in flowing water and is a major health problem for developing countries. Also, according to World Health Organization (WHO) on its report in 2004, diarrheal disease accounts for an estimated 4. 1% of the total Disability-adjusted Life Year (DALY) global burden of disease and is responsible for the deaths of 1. million people every year. It was estimated that 88% of that burden is attributable to unsafe water supply, sanitation and hygiene, and is mostly concentrated in children in developing count ries. Over the time – from 2004 up to the present – , rapid increase in population, urbanization, and industrialization reduce the quality of Philippine waters, especially in densely populated areas and regions of industrial and agricultural activities. The discharge of domestic and industrial wastewater and agricultural runoff has caused extensive pollution of the receiving ater-bodies. This effluent is in the form of raw sewage, detergents, fertilizer, heavy metals, chemical products, oils, and even solid waste. Each of these pollutants has a different noxious effect that influences human livelihood and translates into economic costs. Access to clean and adequate water remains an acute seasonal problem in urban and coastal areas in the Philippines. The National Capital Region (Metro Manila), Central Luzon, Southern Tagalog, and Central Visayas are the four urban critical regions in terms of water quality and quantity.The Government’s monitoring data indicates that just over a third or 36 percent of the country’s river systems are classified as sources of public water supply, up to 58 percent of groundwater sampled is contaminated with coliform and needs treatment, approximately 31 percent of illness monitored for a five-year period were caused by waterborne sources, and many areas are experiencing a shortage of water supply during the dry season. Nearly 2. 2 million metric tons of organic pollution are produced annually by domestic (48 percent), agricultural (37 percent), and industrial (15 percent) sectors.In the four water-critical regions, water pollution is dominated by domestic and industrial sources. Untreated wastewater affects health by spreading disease-causing parasites, makes water unfit for drinking and recreational use, threatens biodiversity, and deteriorates overall quality of life. Known diseases caused by poor water include gastro-enteritis, diarrhea, typhoid, cholera, dysentery and hepatitis. The number of water- related health outbreaks including deaths reported in newspapers is going up.However, awareness regarding the need for improved sanitation and water pollution control, reflected by the willingness-to-pay and connection to a sewerage system where they are easily available, is very low (Philippines: Environment Monitor, 2003; Greenpeace 2007). Davao City has been expanding and growing in terms of population, economy and industry. In this manner, more raw materials are being demanded by these different sectors and as a result destruction of the natural resources is inevitable. Davao river ranks number seven among the largest river basins in the Philippines.This is largest of the city’s nine principal watersheds. The river is the main natural reservoir of the aquifer in the city’s jurisdiction. Its length is about 143 kilometers. It has received domestic and industrial wastewater. Since the sewage systems have not yet been fully developed, the garbage has been discharge in to the river leading to a wide-scale contamination of Davao River (Pascua et. al. , 2011). At present, residents within Davao River unceasingly make use of the water for bathing and washing which may present various threats to them.Some use the river for livelihood e. g. sand quarrying and fishing and for recreational activities. But they are blinded by the fact that they can be infected by pathogenic parasites that would eventually lead to waterborne diseases. This study aims to determine the level of pathogenic parasites in the water. Having everyone in the community know the specific parasites present in the selected stations of Davao River – Bankerohan, Bucana and Magallanes – would eventually lead to a more effective prevention and disease control among the residents of the community.The goal of clean water for everyone has to be achieved in a growing population of a city. This study also aims to measure the level of waterborne diseases in Davao River. Through thi s study, we can help the people be oriented with the danger of using contaminated water from Davao River. Related Literature The importance of urban rivers and streams for urban ecology and quality of life in cities is an increasing concern worldwide. The present state of rivers is much dependent on the history and trends of the society in each country.In many situations water quality is still unsatisfying. Restoration of urban rivers is challenging because of intensive land use, danger of flooding and impacts of human activities for water quality and for the ecology of rivers (Jormola, 2008). Today about 50% of the global population are living in urban areas, placing one-third of their inhabitants into slums, and creating huge challenges to their environment and sanitation. Poor sanitation, poor treatments of waste water, as well as catastrophic floods introduce pathogenic bacteria into rivers, infecting and killing many people.The goal of clean water for everyone has to be achieve d with a still growing human population and their rapid concentration in large cities, often megacities. How long introduced pathogens survive in rivers and what their niches are remain poorly known but essential to control waterborne diseases in megacities. Biofilms are often niches for various pathogens because they possess high resistances against environmental stress. They also facilitate gene transfers of antibiotic resistance genes which become an increasing health problem.Beside biofilms, amoebae are carriers of pathogenic bacteria and niches for their survival (Abraham, 2011). The World Health Organization says that every year more than 3. 4 million people die as a result of water related diseases, making it the leading cause of disease and death around the world. Most of the victims are young children, the vast majority of whom die of illnesses caused by organisms that thrive in water sources contaminated by raw sewage (Berman, 2009). Waterborne Diseases Many illnesses, con taminants, and injuries can be water, sanitation, or hygiene-related.Waterborne diseases are caused by organisms that are directly spread through water. Water-related illnesses can be acquired due to lack of water for good hygiene and lack of sanitation. It is important to know how these diseases and contaminants affect humans where they are found, and how to reduce the chance getting ill or suffering injury. This will allow individuals to make informed decisions about water, hygiene, and sanitation-related activities (CDC, 2012). Parasitic Organisms Parasites may be present in food or in water and can be identified as causes of waterborne illness.They range in size, from tiny single-celled organisms to worms visible to the naked eye. Their lifecycle may also vary. While some parasites use a permanent host, others go through a series of developmental phases using different animal or human hosts. The illnesses they can cause range from mild discomfort to debilitating illness and poss ibly death (USDA, 2011). Parasites cause over 2 billion infections per year worldwide. In the immunocompromised host these infections generally represent reactivation of infection from donor or in the allograft recipient often long after the initial infection (Wiley, 2004).Inland and coastal surface waters can be contaminated by human waterborne zoonotic enteropathogens such as Cryptosporidium parvum, Giardia lamblia, Encephalitozoon intestinalis, E. hellem and Enterocytozoon bieneusi (Graczyket et. al, 2008). The aquatic ecosystem harbors many kinds of organisms. Some of these organisms are parasitic protozoa such as Cryptosporidium spp. and Giardia spp. , which have recently been recognized as important causes of water and food-borne disease outbreaks associated with fecal contamination (Doron, 2000; Karanis et al. , 2006).Cryptosporidium is a parasite commonly found in lakes and rivers, especially when the water is contaminated with sewage and animal wastes. There have been six m ajor outbreaks of cryptosporidiosis in the United States as a result of contamination of drinking water. One major outbreak in Milwaukee in 1993 affected over 400,000 persons. Cryptosporidial infection can thus be transmitted from fecally contaminated food and water, from animal-person contact, and via person-person contact. The probability of transmission from just a small amount of contamination is fairly high, since a recent study has determined that the 50% infective dose of C. arvum is only 132 oocysts for healthy persons with no previous serological immunity to cryptosporidiosis (Hannahs, G. 1995). Cryptosporidium is very resistant to disinfection, and even a well-operated water treatment system cannot ensure that drinking water will be completely free of this parasite. Cryptosporidium has caused several large waterborne disease outbreaks of gastrointestinal illness, with symptoms that include diarrhea, nausea, and/or stomach cramps (Freedrinkingwater. com, 2009). Cryptosporid iosis, a common finding in pediatric patients hospitalized for diarrhea in urban Manila, Republic of the Philippines.Urban areas, particularly in the developing countries, frequently experience severe overcrowding with concomitant diminished sanitation. This situation is conducive to the transmission of enteric pathogens. It would be reasonable to expect that cryptosporidium oocysts are readily passed from human-to-human, human-to-animal and animal-to-human hosts. In rural areas around the world, human cryptosporidiosis is putatively associated with close human-animal contact, as in the case of animal handlers and similar agricultural situations (Laxer, M. 2003).Giardia lamblia is the protozoan parasite responsible for the disease Giardiasis. Symptoms of acute Giardiasis include diarrhea, nausea, weight loss, malabsorption, abdominal cramps, flatulence, and anemia. The mode of transmission of Giardia is through fecal to oral route or ingestion of cysts. A person can become infected after accidentally swallowing the parasite; but cannot become infected through contact with blood. You can become infected with Giardia lamblia if you swallow contaminated recreational water. Recreational water such as in swimming pools, hot tubs, jacuzzis, fountains, lakes, rivers, prings, ponds, or streams that can be contaminated with sewage or feces from humans or animals (Vdresearch. com, 2008). The prevalence of Giardia and Cryptosporidium among 3,456 diarrheic patients corrected from May 2004 to May 2005 in the Philippines was determined. Of 133 (3. 8%) positive samples, 69 (2. 0%) were positive for Giardia and 67 (1. 9%) for Cryptosporidium. Three samples had co-infection with Giardia and Cryptosporidium. Luzon had the highest positive samples (5. 0%) followed by Mindanao (4. 9%), then Visayas (2. 2%). Giardia was most prevalent in Mindanao (3. 6%) while Cryptosporidium was most prevalent in Luzon (3. %). The prevalence of Giardia (2. 0%) among pediatric patients (0-18 years ) did not significantly differ from that (1. 9%) among adults (>18 years old). However, for Cryptosporidium, the prevalence (2. 9%) among pediatric patients was significantly higher compared to that (0. 2%) among adult patients. In the pediatric population, the highest percentage of patients with Giardia was the 5-9 year old age group, while that of Cryptosporidium was in the 0-4 year old group. The prevalence of Giardia, but not Cryptosporidium, was significantly higher in male than female adults (Natividad, F. 008). Amoebic dysentery (amoebiasis) which is the agent of Entamoeba histolytica is widely seen around the world. About 50 million people has become infected a year and eventually over 100,000 people lose their lives. Amoebiasis come into being in consequence of taken of quad-core mature cysts from water, foods, goods or hands by orally. E. histolytica trophozoites are placed into the colon mucosa and submucosa then forms a bloodymucus diarrhea table. It forms abscesses by m oving through blood to liver, lungs, brain and other tissues (Kaya, O. 2011).The infection is common in developing countries and predominantly affects individuals with poor socioeconomic conditions, nonhygienic practices, and malnutrition (Rivera, W. 1998). Related Studies Waterborne diseases are the most prevalent infectious diseases in the developing countries especially in new settlements along the river. Waterborne diseases occur worldwide, and outbreaks caused by the contamination of community water systems and accidental ingestion of recreational waters have the potential to cause disease in large numbers of consumers. Statistics on outbreaks linked to contaminated water have been vailable in the USA since 1920 (Craun 1986), and since 1971, the Centers for Disease Control (CDC), the US Environmental Protection Agency (USEPA), and the Council of State and Territorial Epidemiologists have maintained a collaborative surveillance system for collecting data pertaining to the occurr ence and causes of outbreaks of waterborne disease (Barwick et al. 2000; Lee et al. 2002). In Europe during 1986–96, 277 outbreaks associated with drinking and recreational water were reported from 16 European countries (Kramer et al. 2001). At least 325 water-associated outbreaks of parasitic protozoan disease have been reported.North American and European outbreaks accounted for 93% of all reports and nearly two-thirds of outbreaks occurred in North America. Over 30% of all outbreaks were documented from Europe, with the UK accounting for 24% of outbreaks, worldwide. Giardia duodenalis and Cryptosporidium parvum account for the majority of outbreaks (40. 6% and 165; 50. 8%, respectively), Entamoeba histolytica and Cyclospora cayetanensis have been the aetiological agents in nine (2. 8%) and six (1. 8%) outbreaks, respectively, while Toxoplasma gondii and Isospora belli have been responsible for three outbreaks each (0. %) and Blastocystis hominis for two outbreaks (0. 6%). Balantidium coli, the microsporidia, Acanthamoeba and Naegleria fowleri were responsible for one outbreak, each (0. 3%). Moreover, the occurrence of Giardia and Cryptosporidium (oo)cysts in recreational rivers from Malaysia was reported. It was carried out in water samples at two rivers, ‘Sungai Congkak’ and ‘Sungai Batu’, located in Selangor State. The occurrence of both Giardia lamblia and Cryptosporidium parvum (oo)cysts was higher in Sungai Congkak (50% or 15/30 and 10% or 3/30 respectively) than Sungai Batu (16% or 5/30 and 3. % or 1/30 respectively). The mean density of cysts/L was 0. 72 in Sungai Congkak and 0. 023 in Sungai Batu, and that of oocysts/L was 0. 023 in Sungai Congkak and 0. 0033 in Sungai Batu, showing that the occurrence of Giardia was higher and more frequent than Cryptosporidium in both rivers. On the other hand, the Giardia and Cryptosporidium (oo)cysts were more concentrated at the downstream station, followed by midstream and upst ream stations which might be due to human factors where settlements and recreation areas were located around and between midstream and downstream stations.Failure to meet basic human needs for water in China leads to waterborne diseases and preventable deaths, especially among children. The OECD Environmental Indicators in China report issued in July 2007 estimated 30,000 rural children die each year from diarrhea caused by polluted water (OECD, 2007). The World Health Organization reported an incidence of 108. 4 mortalities per 100,000 persons from diarrhea-related illness in China in 2002. In 2003, the National Statistics Office said diarrheal diseases ranked second among the top causes of morbidity in the Philippines with 615,692 cases recorded (World Bank, 2006).Diarrhea is considered a major cause of morbidity, especially in developing countries. In the Philippines, it was the leading cause of morbidity for the years 2001 and 2003, and the second in 2002 (National Statistics Of fice, 2006). Common causes of diarrhea are infections due to protozoa. These causative agents are either foodborne or waterborne. Among enteric protozoa, Giardia lamblia (syn. G. intestinalis or G. duodenalis) and Cryptosporidium spp. are the most commonly reported causes of water-borne diarrhea outbreaks (Natividad et al,2008).The protozoa G. lamblia was first reported in the Philippines in 1977 and since then has been identified as a common intestinal parasite. Studies done in Luzon, in various localities in the Visayas, and in the southern islands of Mindanao indicate wide distribution of Giardia in the Philippines. (Natividad et al, 2008). Stool examinations in the Philippines typically included the identification of the common etiologic agents of diarrheas such as G. lamblia and Cryptosporidium.According to the most recent nationwide survey of Giardia and Cryptosporidium provides basic information on the prevalence of these enteric protozoa in the Philippines. (Buerano et al, 2 008). The worsening water quality is related to incidence of waterborne diseases, and is likely to increase a negative impact of floods on human health. Example of this is an unusual flood that occurred in Marikina City, resulting in high mortality and morbidity rates due to gastroenteritis and other waterborne diseases (The Asian Disaster Preparedness Center, August 2008).The pollution of the surface water in Agusan River could cause a variety of contagious diseases. Those diseases could outbreak through several routes such as: infection by parasites (such as schistosome), which inhabit in the water and drinking of and/or contact with the polluted water river that may cause dysentery and diarrhea (Lomboy, 2011). Instead of developing Davao River as an economic resource, it is currently being used as a central septic tank according to the Davao River Conservation Coordinating Committee.A study conducted by the committee showed that about 11 drainage systems in the city are moving in to the Davao River (Manila Bulletin Publishing Corp. , 2004). Currently, Davao River has become a dumping site for garbage, biological wastes, chemical wastes and other pollutants carried by the residents and even people just within the area (Pascua et. al. , 2011). Thus, areas near or within the urbanized populace such as Bankerohan, Magallanes and Bucana, are considered polluted and may be the source of detrimental effects to those who live nearby. Conceptual FrameworkINDEPENDENT VARIABLEDEPENDENT VARIABLE Fig. 1 Conceptual Paradigm Showing the Relationship of Independent and Dependent Variables of the Study Presented in Fig. 1 above is the conceptual paradigm showing the independent variable, the pathogenic parasites and its levels on the three stations of Davao River namely Bankerohan, Magallanes and Bucana and is the subject of the study. The waterborne diseases and its levels would depend on what pathogenic parasites are found on the three stations of Davao River and is consid ered the dependent variable of the study.Statement of the Problem This study specifically aims to answer the following questions: 1. What is the level of pathogenic parasites in the following stations of Davao River: 1. Bankerohan? 2. Magallanes? 3. Bucana? 2. Is there a significant difference among the levels of pathogenic parasites? 3. What is the level of waterborne diseases in the following stations of Davao River: 1. Bankerohan? 2. Magallanes? 3. Bucana? 4. Is there a significant difference among the levels of waterborne diseases? 5.Is there a significant association between the level of pathogenic parasites and the level of waterborne diseases? Null Hypotheses 1. Hypothesis free 2. There is no significant difference among the levels of pathogenic parasites in the three stations of Davao River. 3. Hypothesis free 4. There is no significant difference among the levels of waterborne diseases in the three stations of Davao River. 5. There is no significant association between the level of pathogenic parasites and the level of waterborne diseases in the three stations of Davao River. Significance of the StudyThe results of this study would provide advantages to various fields namely: Government – They would be able to implement policies and ordinances regarding proper waste management and the dos and don’ts regarding the use of water from the river. The affected residents within the area would be supported and information dissemination within the community would be implemented. Environmental Groups and Agencies – Having been aware on the situation of the 3 stations of Davao River, they would be able to provide solutions to lessen its contamination and prevent increase on water pollution.Community – They would be given health awareness as well as the possible implementation of preventive measures and disease control. Teachers – This study would serve as an educational supplement and could be regarded as a learning material th at could give additional knowledge to those who would desire to conduct a study related to pathogenic organisms found in urbanized rivers. Students – This study could serve as a reference material for further researches. Definition of Terms Davao River. It is one of the largest rivers in the Philippines and the largest in Davao Region.It has a length of 143 kilometers. Salug River located in San Fernando, Bukidnon is its source and the mouth is located at the Davao Gulf. Bacteria. They are single-celled prokaryotic microscopic living organisms that could be pathogenic or likely to cause disease especially waterborne diseases since they could live in water and easily multiply. Parasite. It is an organism that lives in or on another organism (its host) and benefits by getting nutrients directly to its host. It is usually acquired through ingestion of contaminated food or water.Waterborne disease. It is a disease acquired by drinking water contaminated at its source or in the di stribution system, or by direct contact with environmental and recreational waters. It is a disease which results from infection with pathogenic microorganisms or chemical poisoning. Pathogenic microorganisms include viruses, bacteria, protozoans and helminthes. ———————– Waterborne diseases †¢ Bucana †¢ Magallanes †¢ Bankerohan Pathogenic Parasites †¢ Bucana †¢ Magallanes †¢ Bankerohan

Great Gatsby Corruption

Possibly one of F. Scott Fitzgerald's most astonishing work, The Great Gatsby is not just a magnificent story, but an insightful lesson of society's flaws during the 1920's. Fitzgerald's novel creates an atmosphere of superficiality, dissatisfaction and dishonesty by the depictive illustration of each character's defect. With economical growth, the immoral society of the twenties ultimately brought corruption to the American Dream of achieving prosperity. At the end of the first chapter, the green light at the end of Daisy's dock is introduced, the symbol for hope and a promising future for the Great Gatsby. In the second chapter however, the reader is presented with the, â€Å"†¦ valley of ashes†¦ where ashes take the form of houses and chimneys and rising smoke and finally†¦ of men who move dimly and already crumbling through the powdery air† . The valley of ashes can be interpreted as the superficial and dirt-filled materialistic world that the characters live in. The author's great use of imagery helps accentuate the setting and the crumbling foundation of society. In Fitzgerald's novel, Gatsby is labeled as â€Å"new money†. Having come from no wealthy background, and building his fortunes early in life, Gatsby nearly fulfills all the aspects of the American Dream with hard work, courage and determination but comes short by not achieving satisfaction from prosperity. Money was the critical reagent to Gatsby's corruption that unfolds when he describes Daisy. â€Å"Her voice is full of money† . Often identified as a symbol of wealth, Daisy was Gatsby's main goal. Gatsby had an enormous need to impress Daisy with his riches; his tainted mind could only offer what he had acquired all these years, money.

Physical Sciene Exam Paper March 2012 Grade 12

GRAAD 12 NATIONAL SENIOR CERTIFICATE GRADE 12 PHYSICAL SCIENCES: PHYSICS (P1) FEBRUARY/MARCH 2012 MARKS: 150 TIME: 3 hours This question paper consists of 16 pages and 3 data sheets. Copyright reserved Please turn over Physical Sciences/P1 2 NSC DBE/Feb. –Mar. 2012 INSTRUCTIONS AND INFORMATION 1. 2. 3. Write your centre number and examination number in the appropriate spaces on the ANSWER BOOK. Answer ALL the questions in the ANSWER BOOK. This question paper consists of TWO sections: SECTION A (25) SECTION B (125) 4. 5. 6. 7. 8. 9. You may use a non-programmable calculator.You may use appropriate mathematical instruments. Number the answers correctly according to the numbering system used in this question paper. YOU ARE ADVISED TO USE THE ATTACHED DATA SHEETS. Give brief motivations, discussions, et cetera where required. Round off your final numerical answers to a minimum of TWO decimal places. Copyright reserved Please turn over Physical Sciences/P1 3 NSC DBE/Feb. –Ma r. 2012 SECTION A QUESTION 1: ONE-WORD ITEMS Give ONE word/term for each of the following descriptions. Write only the word/term next to the question number (1. 1–1. 5) in the ANSWER BOOK. 1. 1 1. 2 1. 3 1. 4 1. The type of energy an object has due to its motion The phenomenon which occurs when two light waves meet at a given point The unit of measurement of electrical resistance The basic principle on which electric generators function The type of line spectrum observed when electrons in an atom move from the excited state to the ground state (1) (1) (1) (1) (1) [5] QUESTION 2: MULTIPLE-CHOICE QUESTIONS Four options are provided as possible answers to the following questions. Each question has only ONE correct answer. Write only the letter (A–D) next to the question number (2. 1–2. 10) in the ANSWER BOOK. 2. A car of mass m collides head-on with a truck of mass 2m. If the car exerts a force of magnitude F on the truck during the collision, the magnitude of the force that the truck exerts on the car is †¦ A B C D 1 F 2 F 2F 4F (2) 2. 2 An object moves in a straight line on a ROUGH horizontal surface. If the net work done on the object is zero, then †¦ A B C D the object has zero kinetic energy. the object moves at constant speed. the object moves at constant acceleration. there is no frictional force acting on the object. (2) Copyright reserved Please turn over Physical Sciences/P1 4 NSC DBE/Feb. –Mar. 2012 2. 3A ball is released from rest from a certain height above the floor and bounces off the floor a number of times. Ignore the effects of air resistance. Which ONE of the following velocity-time graphs best represents the motion of the ball? A velocity (m ·s ) -1 B velocity (m ·s ) -1 time (s) time (s) C velocity (m ·s ) -1 D velocity (m ·s ) -1 time (s) time (s) (2) 2. 4 The diagram below shows plane water waves that spread out after passing through a single slit. barrier with single slit plane water waves The wave phenomenon observed after the water waves pass through the slit is †¦ A B C D reflection. diffraction. efraction. photoelectric effect. (2) Copyright reserved Please turn over Physical Sciences/P1 5 NSC DBE/Feb. –Mar. 2012 2. 5 Monochromatic light from a point source passes through a device X. A pattern is observed on a screen, as shown in the diagram below. Key: Colour band Dark band monochromatic light source X From the observation on the screen, it can be concluded that device X is a †¦ A B C D 2. 6 prism. single slit. double slit. concave lens. (2) In the circuit diagram below, the internal resistance of the battery and the resistance of the conducting wires are negligible. The emf of the battery is E. E A V 2R R SWhen switch S is closed, the reading on voltmeter V, in volts, is †¦ A B C D 0 1 E 3 2 E 3 E screen (2) Copyright reserved Please turn over Physical Sciences/P1 6 NSC DBE/Feb. –Mar. 2012 2. 7 Two identical small metal spheres on insula ted stands carry equal charges and are a distance d apart. Each sphere experiences an electrostatic force of magnitude F. The spheres are now placed a distance 1 2 d apart. The magnitude of the electrostatic force each sphere now experiences is †¦ A B C D 2. 8 1 2 F F 2F 4F (2) A fully charged capacitor is connected in a circuit, as shown below. The capacitor discharges when switch S is closed.R S V Which ONE of the following graphs correctly shows the change in the voltmeter reading with time when switch S is closed? potential difference (V) potential difference (V) A B time (s) time (s) potential difference (V) potential difference (V) C D time (s) time (s) Please turn over (2) Copyright reserved Physical Sciences/P1 7 NSC DBE/Feb. –Mar. 2012 2. 9 When light shines on a metal plate in a photocell, electrons are emitted. The graph below shows the relationship between the kinetic energy of the emitted photoelectrons and the frequency of the incoming light. D kinetic ener gy (J) 0 A B C requency (Hz) Which ONE of the points (A, B, C or D) on the graph represents the threshold frequency? A B C D 2. 10 A B C D (2) Overexposure to sunlight causes damage to plants and crops. Which ONE of the following types of electromagnetic radiation is responsible for this damage? A B C D Ultraviolet rays Radio waves Visible light X-rays (2) [20] TOTAL SECTION A: 25 Copyright reserved Please turn over Physical Sciences/P1 8 NSC DBE/Feb. –Mar. 2012 SECTION B INSTRUCTIONS AND INFORMATION 1. 2. 3. 4. Start EACH question on a NEW page. Leave ONE line between two subquestions, for example between QUESTION 3. and QUESTION 3. 2. Show the formulae and substitutions in ALL calculations. Round off your final numerical answers to a minimum of TWO decimal places. QUESTION 3 (Start on a new page. ) A stone is thrown vertically upward at a velocity of 10 m ·s-1 from the top of a tower of height 50 m. After some time the stone passes the edge of the tower and strikes the gr ound below the tower. Ignore the effects of friction. vi = 10 m ·s-1 1,5 m 50 m y1 3. 1 3. 2 Draw a labelled free-body diagram showing the force(s) acting on the stone during its motion. Calculate the: 3. 2. 1 3. 2. Time taken by the stone to reach its maximum height above the ground Maximum height that the stone reaches above the ground (1) (4) (4) (3) 3. 3 3. 4 USING THE GROUND AS REFERENCE (zero position), sketch a positiontime graph for the entire motion of the stone. On its way down, the stone takes 0,1 s to pass a window of length 1,5 m, as shown in the diagram above. Calculate the distance (y1) from the top of the window to the ground. (7) [19] Copyright reserved Please turn over Physical Sciences/P1 9 NSC DBE/Feb. –Mar. 2012 QUESTION 4 (Start on a new page. ) The bounce of a cricket ball is tested before it is used.The standard test is to drop a ball from a certain height onto a hard surface and then measure how high it bounces. During such a test, a cricket ball of mass 0,15 kg is dropped from rest from a certain height and it strikes the floor at a speed of 6,2 m ·s-1. The ball bounces straight upwards at a velocity of 3,62 m ·s-1 to a height of 0,65 m, as shown in the diagram below. The effects of air friction may be ignored. 0,15 kg 0,65 m 4. 1 4. 2 4. 3 Define the term impulse in words. Calculate the magnitude of the impulse of the net force applied to the ball during its collision with the floor.To meet the requirements, a cricket ball must bounce to one third of the height that it is initially dropped from. Use ENERGY PRINCIPLES to determine whether this ball meets the minimum requirements. (2) (3) (5) [10] Copyright reserved Please turn over Physical Sciences/P1 10 NSC DBE/Feb. –Mar. 2012 QUESTION 5 (Start on a new page. ) A wooden block of mass 2 kg is released from rest at point P and slides down a curved slope from a vertical height of 2 m, as shown in the diagram below. It reaches its lowest position, point Q, at a speed of 5 m ·s-1. P 2 kg 2m 9 kg Q 5. 1 5. 2 5. 3 5. 4Define the term gravitational potential energy. Use the work-energy theorem to calculate the work done by the average frictional force on the wooden block when it reaches point Q. Is mechanical energy conserved while the wooden block slides down the slope? Give a reason for the answer. The wooden block collides with a stationary crate of mass 9 kg at point Q. After the collision, the crate moves to the right at 1 m ·s-1. 5. 4. 1 5. 4. 2 Calculate the magnitude of the velocity of the wooden block immediately after the collision. The total kinetic energy of the system before the collision is 25 J.Use a calculation to show that the collision between the wooden block and the crate is inelastic. (2) (6) (2) (4) (5) [19] QUESTION 6 (Start on a new page. ) An ambulance approaches an accident scene at constant velocity. The siren of the ambulance emits sound waves at a frequency of 980 Hz. A detector at the scene measures the frequency o f the emitted sound waves as 1 050 Hz. 6. 1 6. 2 6. 3 Calculate the speed at which the ambulance approaches the accident scene. Use the speed of sound in air as 340 m ·s-1. Explain why the measured frequency is higher than the frequency of the source.The principle of the Doppler effect is applied in the Doppler flow meter. State ONE positive impact of the use of the Doppler flow meter on humans. (4) (2) (2) [8] Copyright reserved Please turn over Physical Sciences/P1 11 NSC DBE/Feb. –Mar. 2012 QUESTION 7 (Start on a new page. ) Learners investigate the change in the broadness of the central bright band formed when monochromatic light of different wavelengths passes through a single slit. They set up the apparatus, as shown in diagram below, and measure the broadness of the central bright band in the pattern observed on the screen.The width of the slit is 5,6 x 10-7 m. screen first dark band monochromatic light ? midpoint of central bright band 0,033 m first dark band 0,45 m 7. 1 7. 2 7. 3 Write down an investigative question. Which TWO variables are kept constant? In one of their experiments, the distance from the midpoint of the central bright band to the first dark band is measured to be 0,033 m. Calculate the wavelength of the light used in this experiment. (2) (2) (5) 7. 4 How will the broadness of the central bright band of red light compare with that of blue light? Write down only GREATER THAN, SMALLER THAN or EQUAL TO.Give a reason for the answer. (2) [11] Copyright reserved Please turn over Physical Sciences/P1 12 NSC DBE/Feb. –Mar. 2012 QUESTION 8 (Start on a new page. ) Two metal spheres, P and Q, on insulated stands, carrying charges of +5 x 10-9 C and +5 x 10-9 C respectively, are placed with their centres 20 mm apart. X is a point at a distance of 10 mm from sphere Q, as shown below. 20 mm +5 x 10-9 C P 10 mm +5 x 10-9 C Q X 8. 1 8. 2 8. 3 8. 4 Define the term electric field. Sketch the net electric field pattern for the two charge s. Calculate the net electric field at point X due to the presence of P and Q.Use your answer to QUESTION 8. 3 to calculate the magnitude of the electrostatic force that an electron will experience when placed at point X. (2) (3) (6) (3) [14] Copyright reserved Please turn over Physical Sciences/P1 13 NSC DBE/Feb. –Mar. 2012 QUESTION 9 (Start on a new page. ) 9. 1 Learners use Ohm's law to determine which ONE of two resistors A and B has the greater resistance. For each resistor, they measure the current through the resistor for different potential differences across its ends. The graph below shows the results obtained in their investigation. A current (A) B potential difference (V) 9. 1. 1The learners are supplied with the following apparatus: 6 V battery Voltmeter Ammeter Rheostat Resistors A and B Conducting wires Draw a circuit diagram to show how the learners must use the above apparatus to obtain each of the graphs shown above. (4) (1) 9. 1. 2 9. 1. 3 Write down ONE var iable that must be kept constant during this investigation. Which ONE of A or B has the higher resistance? Give an explanation for the answer. (3) Copyright reserved Please turn over Physical Sciences/P1 14 NSC DBE/Feb. –Mar. 2012 9. 2 In the circuit diagram below, the battery has an emf of 12 V and an internal resistance of 0,8 ?.The resistance of the ammeter and connecting wires may be ignored. 12 V 0,8 ? 2? 4? A 8? 8? V Calculate the: 9. 2. 1 9. 2. 2 9. 2. 3 Effective resistance of the circuit Reading on the ammeter Reading on the voltmeter (4) (3) (4) [19] Copyright reserved Please turn over Physical Sciences/P1 15 NSC DBE/Feb. –Mar. 2012 QUESTION 10 (Start on a new page. ) 10. 1 The essential components of a simplified DC motor are shown in the diagram below. coil B C N A D S brushes split-ring commutator When the motor is functioning, the coil rotates in a clockwise direction, as shown. 10. 1. Write down the function of each of the following components: (a) (b) 1 0. 1. 2 Split-ring commutator Brushes (1) (1) What is the direction of the conventional current in the part of the coil labelled AB? Write down only FROM A TO B or FROM B TO A. Will the coil experience a maximum or minimum turning effect (torque) if the coil is in the position as shown in the diagram above? State ONE way in which this turning effect (torque) can be increased. (1) 10. 1. 3 (1) (1) 10. 1. 4 10. 2 Alternating current (AC) is used for the long-distance transmission of electricity. 10. 2. 1 10. 2. Give a reason why AC is preferred over DC for long-distance transmission of electricity. An electric appliance with a power rating of 2 000 W is connected to a 230 V rms household mains supply. Calculate the: (a) (b) Peak (maximum) voltage rms current passing through the appliance (3) (3) [12] Please turn over (1) Copyright reserved Physical Sciences/P1 16 NSC DBE/Feb. –Mar. 2012 QUESTION 11 (Start on a new page. ) In the diagram shown below, electrons are released from a metal plate when light of a certain frequency is shone on its surface. incident light metal surface eA 11. 1 11. 2Name the phenomenon described above. The frequency of the incident light on the metal plate is 6,16 x 1014 Hz and electrons are released with a kinetic energy of 5,6 x 10-20 J. Calculate the: 11. 2. 1 11. 2. 2 Energy of the incident photons Threshold frequency of the metal plate (1) (3) (5) 11. 3 The brightness of the incident light is now increased. What effect will this change have on the following: (Write down only INCREASES, DECREASES or REMAINS THE SAME. ) 11. 3. 1 11. 3. 2 The reading on the ammeter Explain the answer. The kinetic energy of the released photoelectrons Explain the answer. 2) (2) [13] 125 150 TOTAL SECTION B: GRAND TOTAL: Copyright reserved Physical Sciences/P1 1 NSC DBE/Feb. –Mar. 2012 DATA FOR PHYSICAL SCIENCES GRADE 12 PAPER 1 (PHYSICS) GEGEWENS VIR FISIESE WETENSKAPPE GRAAD 12 VRAESTEL 1 (FISIKA) TABLE 1: PHYSICAL CONSTANTS/TABEL 1: FISI ESE KONSTANTES NAME/NAAM Acceleration due to gravity Swaartekragversnelling Speed of light in a vacuum Spoed van lig in ‘n vakuum Planck's constant Planck se konstante Coulomb's constant Coulomb se konstante Charge on electron Lading op elektron Electron mass Elektronmassa Permittivity of free space Permittiwiteit van vry ruimteSYMBOL/SIMBOOL g c h k e me ?0 VALUE/WAARDE 9,8 m ·s-2 3,0 x 108 m ·s-1 6,63 x 10-34 J ·s 9,0 x 109 N ·m2 ·C-2 -1,6 x 10-19 C 9,11 x 10-31 kg 8,85 x 10-12 F ·m-1 Copyright reserved Please turn over Physical Sciences/P1 2 NSC DBE/Feb. –Mar. 2012 TABLE 2: FORMULAE/TABEL 2: FORMULES MOTION/BEWEGING v f = v i + a ? t 1 1 ? x = v i ? t + 2 a? t 2 or/of ? y = v i ? t + 2 a? t 2 2 2 v f = v i + 2a? x or/of v f = v i + 2a? y FORCE/KRAG 2 2 ? v +vf ? ? v +vf ? ?x = ? i ? ?t or/of ? y = ? i ? ?t ? 2 ? ? 2 ? Fnet = ma Fnet ? t = ? p ? p = mv f ? v i p = mv w = mg WORK, ENERGY AND POWER/ARBEID, ENERGIE EN DRYWING W = F? x cos ? 1 or/of K = mv 2 2 P= W ? t Ek = 1 mv 2 2 U = mgh Wnet = ? K ?K = K f ? K i or/of or/of or/of E P = mgh Wnet = ? Ek ?Ek = Ekf ? Eki P = Fv WAVES, SOUND AND LIGHT/GOLWE, KLANK EN LIG v=f? fL = v  ± vL fs v  ± vs or/of fL = v  ± vL fb v  ± vb 1 f E = hf T= E= h c ? E = Wo + Ek sin ? = m? a where/waar 1 E = hf and/en W0 = hf0 and/en Ek = mv 2 2 Copyright reserved Please turn over Physical Sciences/P1 3 NSC DBE/Feb. –Mar. 2012 ELECTROSTATICS/ELEKTROSTATIKA Q 1Q 2 r2 V E= d kQ Q U= 1 2 r Q C= V F= kQ r2 F E= q W V= q ? A C= 0 d E= ELECTRIC CIRCUITS/ELEKTRIESE STROOMBANE V R= I R s = R1 + R 2 + †¦ 1 1 1 = + + †¦ R p R1 R 2 W = Vq W = VI ? t W= I2R ? t V 2 ? t W= R emf ( ? ) = I(R + r) emk ( ? ) = I(R + r) q=I ? t W ? t P= P = VI P = I2R V2 P= R ALTERNATING CURRENT/WISSELSTROOM I rms = I max 2 Vmax 2 / I I wgk = maks 2 Vwgk = Vmaks 2 Paverage = Vrms I rms 2 Paverage = I rms R / / / Pgemiddeld = Vwgk I wgk Pgemiddeld = I 2 R wgk Vrms = / Paverage 2 Vrms = R Pgemiddeld = 2 Vwgk R Copy right reserved

Health Inequalities in Scotland/Uk Essay

The causes for health inequalities are very complex and seemingly conflicting. Recent studies show that death rates in Glasgow, Manchester and Liverpool in 2003 and 2007 were much higher than anywhere else in the UK. This is because these cities all have the same crucial issue – poverty and it is estimated that 25% of their populations are classed as ‘deprived’. There are many crucial factors to health inequalities, including poverty in which the CASSI report linked together. Perhaps one of the main issues is lifestyle choices. The North-South divide clearly shows that Scotland has major health issues. The investigation of the 3 cities (Glasgow, Manchester and Liverpool) shows that lifestyle is an important issue. It shows that Scottish people are more likely to die at a younger age, have strokes and get heart disease if they live in deprived areas, compared to their English equivalents – which still have bad health. The report illustrates that the death rate is 15% higher in Glasgow than in the other two cities, hence the phrase â€Å"The Glasgow Effect†. Six out of seven of the worst areas in Scotland are in Glasgow, where those in Edinburgh are expected to live on average four years longer. The average life expectancy for a man in Scotland is 75.3 and 79.9 for a female, yet in England it is 78 for a male and 82.1 for a female – showing that the North South Divide is important when looking at health inequalities. Smoking and obesity are both issues linked with social class and poverty. In Social Class 1, 13% of women are obese, but it is Social Class 2 where it increases to 25%. There are many illnesses related to obesity including heart disease. 66% of people in Scotland are classed as overweight, and 4 people die every week due to obesity. The struggling NHS forks out  £125 million pounds per year to treat obese people. Messages from the government have helped to reduce smoking by 75% in Social Class 1 but Social Class 2 only by 35%. 15% of people in Clarkston (Glasgow) smoke, whereas in the poorer area of Nitshill 44% of people smoke. Smoking can lead to cancer, heart disease and death. Alcohol misuse also separates social classes. 1 in 4 men in Glasgow admit to having a drinking problem with 200,000 dependant on alcohol, and 40% of women – therefore it is no surprise that it’s a major cause of premature death in Scotland. Glasgow has the highest alcohol related deaths in the UK where two thirds are from the most deprived areas. Someone born in Caltson has a life expectancy of just 54 years, but someone in Lenzie, just a matter of miles away, can expect to live to 82 years old. The life expectancy in India is 62, 8 years more than in Calton despite the fact that 80% of the population in India live in poverty, highlighting the lifestyle choices of people can impact on health. The most recent Government report states that â€Å"There is a clear relationship between income equality†. It tells us that more than two thirds of the total alcohol related deaths were in the most deprived areas and that those living in these areas of Scotland have a greater suicide risk – more than â€Å"double that of the Scottish average†. Clearly, those with money can afford to buy a gym membership, private healthcare and other things which improve their quality of life and therefore they have a better lifestyle than poorer people – thus showing a link between poverty and health, as those in rich areas can expect to live 30 years more than those in poor areas. Finally, ethnic origin is a factor which can influence health inequalities. An example of this is those originally from Pakistan and Bangladesh are five times more likely to suffer from diabetes than the white population. Indians are three times more likely at risk than whites. Pakistani and Bangladeshis men and women face a higher risk of heart disease than average, whilst Chinese face a lower than average risk. This highlights the thought that your ethnic origin can affect your health. To conclude, I believe that both poverty and lifestyle contribute to poor health, although I believe that poverty is more of an issue than any other factor.

Personnel and organization conflict Essay Example | Topics and Well Written Essays - 500 words

Personnel and organization conflict - Essay Example Performance standards typically emphasize individual performance, but they can also be used to measure group performance. The employees of a company must be notified in written about the performance standards that the workers must comply with. Appraisal programs include the performance standards in order to measure the performance of employees. Some of the measures that are estimated by performance standards include the quality, quantity, cost effectiveness and timeliness of the work performed. Performance standards are needed to control the labor output of the employees. For instance, if an employee is given a performance standard that specifies he must produce at least 25 units per shift, the employee will comply with that amount due to the existence of the performance standard. Monitoring performance standards of a job is a good way to measure the effectiveness of the worker. The use of performance standards can also enhance the ability of the manager to determine operating inefficiencies that need corrective actions to be fixed. Five types of performance measures that managers should consider are efficiency, quality, error rate, revenue, and compliance (Ofm.gov, 2009). Inefficient employees that commit errors must be tracked in order to remedy the situation. A way for management to reduce errors and to improve the quality of the work performed by the workers is through training and development. The use of performance measures helps managers identify weaknesses in the operations of a company. It is important to keep the employees motivated and with high morale to help them achieve a high level of performance. Performance measures enable managers to establish specific criteria for the workers to follow. The use of performance standards provides employees with duties and responsibilities to comply with (Indiana.edu, 2005). The use of written performance measures enables companies to comply with governmental regulations

Creative short story on time travel Essay Example | Topics and Well Written Essays - 2000 words

Creative short story on time travel - Essay Example Existing historical works give us a past, which seem so unreal and amazing. The existence of humongous animals that dwelt million years ago known as dinosaurs and mammoths, man eating raw meat, such things drove my adventurous spirit into wanting to discover more. The fact that all that happened prior to my existence and I did not get the chance to witness it all happen, made me restless. I had sleepless nights, many imaginations made me perturbed. I could not rest a second knowing that all these events passed without me witnessing. I felt jealous of the crude man for he was there and I was not. Sometimes I even despised my folks for conceiving after all the happenings. It was now obvious that I was obsessed with the past. The only thing that would calm my spirits was to visit the past and experience the happening of the events. Though it seemed absurd, I was determined to accomplish my mission. My enthusiasm brought zeal unto me. My mission was to visit my past and nothing would make me back down. My name is Robert Spencer and this is my story. I was born by a Persian mother and an Arabic father in the year 1345 of April. My mother was poor and her background was not at all stable. She lived by the hand and her little income is what sustained us. Alice Spenser was her name. Her parents who also unfortunately happened to be my grandparents disowned her when she got pregnant with me. She came from a strict background with tight moral values. Her father’s image came first then his family followed suit. Being a deacon in the church his image was very important in the society. That is the main reason her father could not tolerate early pregnancies. My father of came to Persia as a scholar. He met my mum in church and my mother mesmerized him with her aesthetical endowment. One thing led to the other and without knowing my mum was pregnant. It did not occur to her that she was with child until my dad had already left. With no way of