Saturday, October 5, 2019
Teenage Pregnancy Essay Example | Topics and Well Written Essays - 3500 words
Teenage Pregnancy - Essay Example Worldwide, rates of teenage pregnancy range from 143 per 1000 in some sub-Saharan African countries to 2.9 per 1000 in South Korea. (Treffers, 2003, UNICEF. (2001) ).Among OECD developed countries, the United States and United Kingdom have the highest level of teenage pregnancy, while Japan and South Korea have the lowest.( national master, 2008) In countries such as India the majority of teenage births occur within marriage.( Mehta, 1998, UNICEF, 2001) in developed countries this is mostly outside a marriage and is regarded to be an illegal pregnancy but in US and UK a huge number of these pregnancies though occurring at teenage are taken to term and children are delivered. Age at the first child birth is very important prognostically for a woman's gynecological history as well as other general health issues but this aspect has not been addressed the way it is needed. Most of the developing countries where early marriages are very common are the ones have a higher maternal and infan t mortality and morbidity rates due to prenatal, antenatal and postnatal complication. With pregnancy there are a number of risks associated and they all have an impact on the outcome of the pregnancy and most of those disorders like pregnancy induced hypertension, gestational diabetes, and low birth weight babies occur if the mother's age is less than 15 years. In UK young girls mostly have poor intake of nutritional food and they are more for putting their self on diet and for that reason their bodies are not prepared for conceiving. If we see for a woman to turn into a healthy mother she needs time to get prepared for becoming a mother and if she becomes a mother all of sudden without prepreparation she will obviously not be ready to handle the responsibilities. Pregnancy needs a close follow ups for antenatal care but if the mother is immature to the extent that she does not understand the importance f this aspect then how can a pregnancy be helped with antenatal care provision That is so important for a pregnancy to go healthy till its term. Child bearing duration of a female has a significant impact on a family's structure, economic status, health of that family, and even its particular social class and if taken at a larger scale it has a profound impact on a country's economy. If a woman starts producing children at the age of 15 she is getting 25 plus potential years to be fertile which can potentially be leading to a good number of increases in a nation's population. Pregnancy at an early age is very unhealthy in terms of its hazardous impact on the mother's and child's health, its impact on country's economy and the social issues associated to this phenomenon. Pregnancy is regarded to be a medical condition and it has to be given the due attention of a potential killer if not taken care of properly. Pregnancy is a much altered state of physiology of a woman. Pregnancy itself carried a significant risk to a mother's health whether at occurs at any age or later. However; there are additional medical concerns for younger mothers, particularly those under 15 and those living in developing countries. (Mayor, 2004) A pregnant mother undergoes through a transition for 40 plus weeks and then gets able to give birth to a child. During all these nine months of continues transition the first three months are very important for a few medical conditions like pregnancy induced hypertension
Friday, October 4, 2019
Choose your own Essay Example | Topics and Well Written Essays - 1750 words
Choose your own - Essay Example sin, alongside his brother Agostino, made the first step towards commercializing their business by opening a studio, whose main function was to make and sell paintings to people that requested them. In their approach, the Carracciââ¬â¢s placed much attention on the typical Florentine style of linear draftsmanship, which was evident in some of the paintings like Andrea Del Sarto, which was done by Raphael. The interest in Carracciââ¬â¢s glimmering colors in their paintings, as well as development of mistier edges was an idea they borrowed from Venetian painters like Titian, whose works they studied in much of their travels. Some of the most famous paintings by Carracci are discussed and illustrated below This painting, one of the best that were done by Carracci is a depiction of a family life where a mother is shown as warning a nightgown of her so just besides a small fire in the room. The picture indicates a home that comprises of the mother together with her two children and a cat, who are looking on as the gown is warming. This painting is believed to be dating back to the 1580s, a time of its development. Carracci has been creative in managing to create a intimacy mood; in fact, this is the approach that Carracci and Ludovico have often used in most of their paintings and artwork. Annibale seem to have mastered the style of using a quick and inspired form of pale washes that appear watery on white surfaces. The use of this approach I very effective since it reveals magical results of tone in the painting, making it authentic and clear. According to this picture, the light from the fire can be described as a major protagonist as far as the composition is concerned. The use of wash by the artist in defining form ranks among the daring works of draftsmanship by Annibale, which indicates his self-confidence in his work. It is important to realize that the use of ink and pen together with the wash make a very permanent picture that one cannot easily erase. This is
Thursday, October 3, 2019
An Honest Farmer Essay Example for Free
An Honest Farmer Essay The dictionary defines integrity as ââ¬Å"an uncompromising adherence to a moral codeâ⬠and ssys the word traces its origins to a Latin term meaning ââ¬Å"untouched. â⬠Here is integrity, untouched and unshaken by altered circumstances. There was a war in Germany long ago, and thousands of soldiers were scattered over the country. A captain of the cavalry, who had a great many men and horses to feed, was told by his colonel that he must get food from the farms nearby. The captain walked for some time through the lonely valley, and at last knocked at the door of a small cottage. The man who opened it looked old and lame. He leaned on a stick. ââ¬Å"Good day, sir,â⬠said the captain. ââ¬Å"Will you kindly show me a field where my soldiers can cut the grain and carry it off for our army? â⬠the old man led the soldiers through the valley for about a mile, and in the distance they saw a field of barley waving in the breeze. ââ¬Å"This is just what we want. Weââ¬â¢ll stop here,â⬠exclaimed the captain. ââ¬Å"No, not yet,â⬠said the old man. ââ¬Å"You must follow me a little farther. â⬠After another mile or two, they came to a second field of barley. The soldiers dismounted, cut down the grain, tied it in sheaves, and rode away with it. Then the captain said to the old farmer: ââ¬Å"Why did you make us walk so far? The first field of barley was better than this one. â⬠ââ¬Å"That is true, sir,â⬠answered the honest old man, ââ¬Å"but it was not mine. â⬠farmer
Challenges and Techniques of the Oil Industry
Challenges and Techniques of the Oil Industry The Oil Sand Energy availability and economic progress go hand in hand. It is not possible to achieve economic progress in the absence of cheap, reliable energy availability. The use of energy on the part of society has increased systematically over the past two centuries, since the time of the industrial revolution. And there is no end in sight to the increase in the consumption of energy. This will continue because as global population continues to increase and especially in some of the emerging countries like China and India, the consumption of energy is bound to increase exponentially. In the past fifty years, global energy consumption has increased monotonously and how is this demand satisfied? This demand is being meet primarily with crude oil. Crude oil has been the largest energy component since 1960 and grew very rapidly in the 1970s and ever since, has grown less rapidly. Though oil has been losing ground but nevertheless, it remains the most important source of energy, second being coal, according to the Energy Information Administration (EIA). Oil is a fossil fuel and the world is about 80 to 85% dependent on fossil fuels for our energy supply. This is a challenge because when fossil fuels are burnt, they emit CO2 in the atmosphere and since CO2 is a greenhouse gas, it contributes to global warming Oil is a mix of hydrocarbons that are liquid under atmospheric conditions. The fact that they are liquid allows for easier processing, transportation, storage, and has a higher content of energy per volume. These are the greatest advantages that oil has over other energy resources.Ãâà However, there are scenarios where the oil is not trapped in a cap rocks and forces it way out to the surface, or very close to the surface of the ground, at which point, the lighter molecules evaporate into the atmosphere and what is left are heavier molecules, which are normally called extra heavy oil or bitumen. This is known as Oil sands or Tar sand and it is made up of a mixture of sand, water, clay, and bitumen[1]. Oil sands or Tar sand are found in various countries throughout the world, but the vast quantities of oil sand reserves are found in Canada and Venezuela, according to EIA. Alberta, Canada, is estimated to have about 1.7 to 2.5 trillion barrels of oil sand reserve, thus, represent ing the largest single reserve of oil in the world.[2] Accordingly, Canada produced about 3.8 million barrel per day of crude oil, in 2014 alone. Of this, 2.2 million barrel per day was produced from the oil sands.[3] About 10% of the worlds oil reserves are located in the Alberta oil sands and about 96 percent of Canadas total oil reserves are contained in the oil sands.[4] Moreover, Canada is said to be the leading supplier of crude oil and refined oil products to the United States and the trend continues to grow in terms of percentage of US oil imports. About 60 percent of Canadas production capacity from oil sand, about 1.34 million barrels per day is exported to the US.[5] Energy as found in nature needs to mined, processed, refined and transported before it is available for end use. Unlike oil produced by conventional oil drilling which is generally less dense than water, extracting oil from oil sands is more complex. There are two methods for getting bitumen out of the ground and turning it into usable products in-situ and open pit mining. The extraction method used will depend on how deep the oil sand deposits are below the surface. Both methods are complex, energy-intensive and expensive processes. In-situ (in place) In-situ extraction process is used to mine bitumen that lies deep below the surface of the ground (greater than 75 meters underground). According to studies, about 80% of oil sands reserves in Canada are accessible via in-situ techniques.[6] The in-situ method normally uses a process called Steam Assisted Gravity Drainage (SAGD). This method requires the drilling of two horizontal wells; one is used for injecting steam into the oil sand deposit to heat the oil sand making the bitumen to become more fluid and easy to flow more easily. The second well is used to pump out the flowing bitumen to the surface.[7] Open-Pit Mining Like the conventional oil mining Open-pit mining is used when mining oil sand reserves that are closer to the surface of the ground (less than 75 meters below the ground). According to industry report, 20% of oil sand reserves in Canada are extracted using this mining technique.[8] With this method, trees and top layer of soil are cleared, large shovels are used to scoop the oil sand, which is mix of sand, water and bitumen into large trucks and then moved it to onsite processing facility, where hot water is added to this mixture of sand, clay, bitumen, in a large separation vessel. Bitumen froth is forced to rise to the surface, during the separation process and then removed and diluted with chemicals.[9] Normally, the spent sand and other materials that are recovered during this process is then returned to the mines to fill in empty space that has been mined as a way of reclamation Upgrading Once the Bitumen is recovered from either through open-pit or from in-situ operation, the viscous substance is then processed in order to make it easier to transport through pipelines to various refinery, where it is to be used as feedstock. This process is called upgrade. The purpose of upgrading is to transform bitumen into synthetic crude oil, a high quality, light sweet crude oil, by removing carbon and adding hydrogen and chemical to bitumen.[10] Typically the upgrading process comes in two phases namely primary and secondary upgrading. The primary upgrading involves breaking down the heavy molecules of bitumen into lighter and less viscous molecules. The secondary upgrading is used to further cleanse and purify the bitumen attained from primary phase. This phase involves removing other impurities such as nitrogen, Sulphur, and trace metals and get it ready for oil refineries.[11] Refining The bitumen is finally delivered to through pipelines the refinery through pipelines. The SCO product is then sent to a downstream refinery for conversion into final product.[12] Here the oil is processed and converted into final products like gasoline, jet fuel, diesel, plastics, asphalt and other consumer and industrial products. Environmental Challenges The mining and processing of oil sands present a variety of environmental impacts, such as global warming and greenhouse gas emissions, disturbance of land structure, and air and water quality. It also may have significant social and economic impactson local communities. Another major concern is related to the tremendous amount of water required for oil sands development -extraction, upgrading and refining. It is estimated that the process requires an average of three barrels of water for one barrel of oil produced,[13] though some of the water are be recycled. The major environmental challenges to oil sand extraction among others are land, water, air: Land Development of oil sand crate concern about the accumulation of large amounts of residual waste known as tailings. Tailing, which contain a mix of water, clay, un-recovered bitumen, and dissolved chemicals, including some organic compounds are considered to be extremely toxic and very hazardous to the environment. Moreover, the tailings are stored in large ponds and causes seepage into the surrounding landscape, though the water released from the ponds can be recycled and reused, however, most still remains as mud almost indefinitely. The massive activities associated with oil sand project are also known to create tremendous structural disturbances of the landscape including seismic exploration and construction of wells, roads pipelines etc. negatively impact the environment and endangers the wildlife. Water Since oil sand is made up of a mixture of sand, water, clay and bitumen, a hot water process is required to separates the bitumen from the associated sand, water, clay and minerals. The process takes enormous amount of water of fresh water to produce a barrel of bitumen from mined oil sands. In many cases, the water is sourced from ground water aquifers. Rapid expansion of oil sands projects are causing great strains on fresh water resources, which leads to ecological and environmental problems.[14] Also, since bitumen is denser than water, it can be harder to clean up when there is a spill. Additionally, oil sands mining operations produce huge amounts of toxic waste, known as tailings, which consist of water, sand, silt, clay, hydrocarbons and contaminants.Ãâà The contaminates may contain various levels of naphthenic acids, polycyclic aromatic hydrocarbons, phenolic compounds, ammonia and mercury etc., some of which, according to International Agency for Research on Cancer an d the U.S. Environmental Protection Agency, are known to be cancer-causing agent.[15] Even worst, the tailings are mostly stored in ponds or man-made dams, thus causing the tailing to leak into ground water and surrounding water resources. It is estimated that about four billion liters of tailings leak each year, thereby triggering immense environment devastation.[16] Air Extracting Oil sands require a substantial amount of energy in processing to process, upgrading and refining bitumen to the final products suitable for market. The entire development process is so energy intensive that it contributes immensely in carbon emissions. Reports suggest that the oil sand industry is among the highest contributors of national air emissions in Canada. Oil is produced to be consumed, more than half of the oil consumed in the world is for transportation fueling societys unquenchable demand for mobility. More than 50 percent of oil produced is used for transportation needs.[17]. As the worlds population grows, so will the global passenger mobility, global freight and transportation volumes. Additionally, the current global rise in urbanization, the global economic growth, as well as high level of economic development are other important factors prompting the increase in demand for oil. As fossil fuel, final oil products are burnt for energy through the various applications for which they are used. When burnt, they emit high amounts of harmful emissions, including nitrogen oxides, sulfur dioxide, and particles that drift into the atmosphere and contribute to air pollution. Carbon dioxide and water vapor, along with other gases such as ozone and nitrous oxide, are known greenhouse gases and the increasing amounts of these greenhouse g ases in the atmosphere are linked to global warming and could have disastrous environmental consequences.[18] However, since the business of producing oil from oil sand is base generally on oil price, chances are that there will be some slowdown in sand oil operations around the world, as oil prices decline. Due to the recent downward trend of oil prices, the economic viability and financial attractiveness of oil sands projects have also declined. Financial analysts including those from Goldman Sachs and Total have concluded that oil sands projects require long-term prices in excess of $80/barrel to break even[19]. Deutsche Bank and BP, among others, have raised doubts about the future of investing in oil sand and Shell Oil has significantly scaled back its oil sands plans[20]. If these phenomena should continue, it might be the preeminent way in reducing and mitigating the environmental degradation being caused by oil sand. [1] http://www.canadasoilsands.ca/en/what-are-the-oil-sands/recovering-the-oil [2] http://www.nrcan.gc.ca/energy [3] lbid [4] www.oilsandsmagazine.com/technical/oilsands-101 [5] Kenny Bruno, Bruce Baizel, Susan Casey-Lefkowitz, Elizabeth Shope, and Kate Colarulli, Tax Sands Invasion: How Dirty and Expensive Oil from Canada Threatens Americas New Energy Economy (May 2010) [6] http://www.suncor.com/about-us/oil-sands [7] http://www.canadasoilsands.ca/en/what-are-the-oil-sands/recovering-the-oil [8] http://www.nrcan.gc.ca/energy [9] http://www.canadasoilsands.ca/en/what-are-the-oil-sands/recovering-the-oil [10] http://www.nrcan.gc.ca/energy [11] lbid [12] http://www.oilsandsmagazine.com/technical/oilsands-101 [13] http://www.nrcan.gc.ca/energy [14] lbid [15] Kenny Bruno, Bruce Baizel, Susan Casey-Lefkowitz, Elizabeth Shope, and Kate Colarulli, Tax Sands Invasion: HowÃâà Ãâà Dirty and Expensive Oil from Canada Threatens Americas New Energy Economy (May 2010) [16] lbid [17] https://www.iea.org [18] Kenny Bruno, Bruce Baizel, Susan Casey-Lefkowitz, Elizabeth Shope, and Kate Colarulli, Tax Sands Invasion: How Dirty and Expensive Oil from Canada Threatens Americas New Energy Economy (May 2010) [19] lbid [20] lbid
Wednesday, October 2, 2019
Impact of Electric Vehicles Essay examples -- Environment, Renewable E
1 Literature Review The review presented in this chapter outlines the integration of electric vehicles with the electricity generated from wind energy to improve jurisdictions energy security and to reduce greenhouse gas emissions. The first section discusses wind as a renewable energy source and its share in future global energy mix to meet the increased electricity demand while still reducing greenhouse gas emissions. The second section explains the fundamentals of different types of electric vehicles and describes the research related to the impact of electrification of vehicles in transportation sector. The final section summarizes the findings presented in existing literature related to the potential environmental impact of the electric vehicles using the regional wind generated electricity to address greenhouse gas emissions and to improve energy security. 1.1 Renewable Energy In the recent years, the global demand for energy is rapidly growing with increasing human population, urbanization and modernization (Asif & Muneer, 2008). According to the IEAââ¬â¢s World Energy Outlook (WEO), the global primary energy demand is projected to increase by 35 percent from 2008 to 2035 (IEA, 2011). Today, fossil fuels ââ¬â notably oil, gas and coal accounts for majority share of primary energy supply and it will remain to be dominant energy sources to meet the global energy demand in 2035. However, the share of fossil fuels sources in global primary energy mix will decline to 74 % in 2035 compared over 81% in 2008 (IEA, 2011). Furthermore, the share of renewables to energy growth is likely to be increased from 5% (1990-2010) to 18% (2010-2030) (BP, 2011). Renewable energy sources include solar, wind, biomass, hydro, geothermal and wave an... ...ar to backup power by providing power stored in energy storage devices back to electric grid to balance the supply and demand; however it also provides the additional storage for utilities when the energy is excess in availability for later use. For example, when wind power is excessive in production, utilities stores the excess wind generated electricity in to batteries and restore when there is no wind or high energy demand. (Kempton & Dhanju, 2006). Energy storage technique could help utilities to decrease the variability of the system and improves the maximum utilization of wind energy in to their energy mix. Some of the major energy storage technologies available in the market are pumped hydro energy storage (PHES), compressed air energy storage (CAES), Electric thermal storage (ETS) and battery energy storage (BES) etc., (Ibrahim, Ilinca, & Perronb, 2008).
Tuesday, October 1, 2019
The Digital World Essay -- Technology Machines Internet Papers
The Digital World The digital world of today can be understood as a product of late-Victorian construction of the machinery of information organization combined with Modernist visual forms. In his doctoral dissertation, The Engineering of Vision from Constructivism to Computers, Lev Manovich, professor of New Media at the University of San Diego, states it is the influence of Modernist visual forms, mainly Soviet era Constructivism, that shapes the look of the current digital world (e.g. the Internet). Professor Simon Cook of Duke University, in his recent paper, Late Victorian Visual Reasoning and a Modern History of Vision, argues that Manovich overlooks the importance of the Victorian period in influencing the aesthetics of our present digital design. Cook bases his argument on the concept of an orderly and well-catalogued Internet, as if the system had been developed in nineteenth century Britain. However, due to the chaotic, disorganized and ever-changing look of the digital world, the argument of a Victorian based system is flawed. The late nineteenth century does not have the impact Cook believes it does, whereas Manovich remains on track in his original argumen t. Still, Manovichââ¬â¢s ideas can only be regarded on a temporary basis, because the face of the digital world has changed drastically since its development, and will continue to in the near future. Before exploring the look of the current digital world, it is first important to look at its physical development. I will concentrate mainly on the Internet and the more recent phenomena of the World Wide Web, although software look also has a significant role. This concentration follows from my prediction of the future look of computers, which will be more web-bas... ...ent. Current world politics and economics may play just as a significant role for the future digital world as Soviet Constructivism does for the current one. Bibliography Cook, Simon, online papers: http://www.duke.edu/~sjc68 Cook, Simon, Late Victorian Visual Reasoning and a Modern History of Vision Linton, Berry; Vinton, Carl, et al. A Brief History of the Internet, http://www.isoc.org/internet/history/brief.shtml Manovich, Lev, online archive: http://www.manovich.net. Manovich, Lev, The Engineering of Vision from Constructivism to Computers, online Ph.D. Dissertation, 1993. Manovich, Lev, Database as a Symbolic Form Manovich, Lev, Navigable Space Manovich, Lev, Avant-Garde as Software Richards, Thomas. The Imperial Archive Smith, David, Constructivism and Suprematism, http://users.senet.com.au/~dsmith/constructivism.htm
Research opportunity Essay
1.This assignment gives you the chance to research current issues in cyber forensics affecting the ICT industry, forensic examiners, and the legal fraternity. Using sound research strategies to locate quality academic, scientific and legal research material the assignment is intended to provide you with the opportunity to: a)Refine research and analysis skills through locating, selecting and compiling a higher-level research essay. b)Familiarise yourself with new development in cyber forensics that will affect the working and private environments of all technology users. c)Add to the general knowledge of the School of ITââ¬â¢s research and preparation of future unit offerings and potential research topics for student projects and post-graduate research. 2.You are, in effect, my team of researchers undertaking some relevant research of benefit to your own learning experience and future employment and research. 3.Your essay should focus on the following topics that are considered of growing significance: analysis, validation and presentation of digital evidence in cyber forensics examinations. Your research must be based on published research papers, government and other organisation standards, guidelines and papers. It should describe, explain and discuss the following issues: -Deductive, inductive and abductive reasoning in the context of cyber forensics analysis. -Processes that assist in developing a case hypothesis and alternative hypothesis. -Validation processes that check and test the correctness of the digital evidence exhibits and their relationships withà corroborating evidence relied on in legal cases. -Processes that would enhance the communication of and presentation of case analysis to the legal practitioner and courts. 5.You will be given instruction in the workshops on the format of a research essay and video material will be added during the teaching to assist your assignment preparation. 6.The length of the essay should be 3,500 words.
Subscribe to:
Posts (Atom)