5 situaciones migratorias que se pueden tener en USA

5 situaciones migratorias que se pueden tener en USA La situacià ³n migratoria que se tiene en Estados Unidos afecta a los derechos y obligaciones que se tienen segà ºn la ley. Muchas veces es posible cambiar de categorà ­a, mientras que en otros en prcticamente imposible.     Ciudadanos americanos La inmensa mayorà ­a de las personas que vivimos en Estados Unidos somos ciudadanos americanos. La ciudadanà ­a se puede obtener de cinco formas distintas. La mayorà ­a son ciudadanos desde el momento de su nacimiento pero tambià ©n se puede adquirir posteriormente.   Los ciudadanos tenemos el derecho de vivir y trabajar en Estados Unidos y todos los que nos reconocen las leyes. Pero tambià ©n tenemos obligaciones. Desde el punto de vista migratorio, ser ciudadano tiene importantes ventajas como: imposibilidad de ser deportadosà ³lo en casos extremos y concretos se pierde la ciudadanà ­ase pueden pedir los papeles para varias categorà ­as de familiares y en aplicacià ³n de DAPA los ciudadanos podrn extender proteccià ³n frente a la deportacià ³n a sus padres y madres. Por à ºltimo recordar que la ciudadanà ­a americana se extiende a los territorios de Estados Unidos como, por ejemplo, Puerto Rico (estos son los documentos que se necesitan para viajar a la Isla). Residentes permanentes legales (LPR por sus siglas en inglà ©s) Los residentes permanentes legales tienen a su nombre una green card, tambià ©n conocida como tarjeta de residencia. Pueden vivir y trabajar indefinidamente en Estados Unidos, pero no son ciudadanos, por los que sus derechos estn ms limitados y tienen obligaciones que sà ³lo aplican a a ellos. Estas son 13 diferencias entre ciudadanos y residentes que hay que tener presentes. Una vez que se tiene una tarjeta de residencia, en casos muy concretos es temporal (inversores y algunos casos de esposos de ciudadanos), convirtià ©ndose ms tarde en definitiva, si todo va bien y se cumplen con todos los requisitos legales. En todos los dems casos es permanente, debià ©ndose renovar antes de que expire.   Los inmigrantes con una green card pueden optar por conservar ese estatus de residentes permanentes o pueden solicitar convertirse en ciudadanos mediante el proceso que se conoce como naturalizacià ³n, una vez que transcurren los plazos mà ­nimos que tienen que esperar los residentes para aplicar por la ciudadanà ­a. Extranjeros con visa no inmigrante En esta categorà ­a entra un amplio grupo de personas. Cada una debe respetar las condiciones de su visado (o, en su caso del Programa de Exencià ³n de Visas).En là ­neas generales y para ilustrar las diferencias pueden establecerse las siguientes subcategorà ­as: Visas de doble intencià ³n Son las visas de trabajo H-1B para profesionales y modelos y la L-1 (versià ³n A y B) para ejecutivos, directivos y personal con conocimiento especializado que trabajan para multinacionales.  Son visados muy cotizados.Una de sus grandes ventajas es que son consideradas como visas de doble intencià ³n. Esto quiere decir que su titular no tiene que demostrar la intencià ³n de regresar a su paà ­s y que puede buscar activamente quedarse en Estados Unidos como inmigrante y que le patrocinen una green card. Visas especiales Como la K-3/K-4 para esposos/hijos de ciudadanos americanos, que es poco utilizada o la K-1/K-2 para novios/as de ciudadanos y sus hijos, que es ms utilizada. Particularmente la K-1 puede dar problemas si no se siguen sus reglas. Se otorga al novio o prometida de un ciudadano americano para que ingrese a Estados Unidos para casarse y a partir de ahà ­, mediante lo que se llama ajuste de estatus, solicitar la green card. Una vez que se ingresa a EEUU hay que seguir todos los requisitos de la visa. Es decir, no casarse a tiempo, de ninguna de las maneras o casarse con otra persona distinta a la que solicità ³ la visa es un error (grave).   Visas no inmigrante Son muchas y muy diversas entre sà ­, con distintas reglas. Pero tienen un elemento en comà ºn: se tiene que demostrar la intencià ³n de no quedarse en Estados Unidos y de tener lazos econà ³micos y/o familiares fuertes en el paà ­s de residencia habitual.   En esta categorà ­a entran visas como las de trabajo, las de estudiante o la de turista e incluso las de inversià ³n como la E-1 para casos de negocios de importacià ³n/exportacià ³n o la E-2 donde hay una inversià ³n sustancial de dinero.   En cuanto a los turistas, pueden ingresar a Estados Unidos con visa B2, en el caso de mexicanos en la frontera con la lser y chilenos  y espaà ±oles sin visado (si llegan por avià ³n necesitan una ESTA).   Todos los turistas deberà ­an tener en cuenta  con  cunta frecuencia se puede ingresar a EEUU como turista  y quà © pasa si una persona se queda en Estados Unidos ms tiempo del permitido. Es cierto que en circunstancias especiales es posible cambiar una visa no inmigrante por  otra visa o incluso una residencia. Pero no siempre. Hay que tener siempre presente las circunstancias y requisitos de la visa que se tiene (o no visa, en su caso) y cà ³mo se quiere hacer el cambio y si es posible y cà ³mo. Para evitar problemas siempre es aconsejable consultar con un abogado de inmigracià ³n e informarse sobre quà © tipo de visa se tiene. Situaciones especiales Algunas personas presentes en Estados Unidos tienen una situacià ³n especial debido a sus circunstancias personales, como por ejemplo: AsiloVisa U para và ­ctimas de violenciaVAWAVisa T para và ­ctimas de trata de personas En general, esas personas con el paso del tiempo y si se cumplen los requisitos acabarn obteniendo una tarjeta de residencia (green card).Especial mencià ³n merece el caso de los cubanos  que al  aà ±o y un dà ­a de ingresar legalmente pueden pedir la residencia permanente (green card) por  ley de ajuste cubano. Lo que ocurre es que esto à ºltimo suele suceder antes de que se resuelva el caso de asilo y asà ­ la residencia por ajuste cubano cancela al proceso de asilo. Indocumentados Se calcula que en Estados Unidos pueden vivir como indocumentados ms de 11 millones de personas. Los indocumentados pueden ser deportados, carecen de acceso a beneficios sociales excepto los ms bsicos como WIC, en la mayorà ­a de los estados no pueden obtener la licencia de manejar (aunque hay importantes excepciones), etc. Pero no todos los indocumentados son iguales desde el punto de la ley. En la actualidad los jà ³venes que llegaron a Estados Unidos siendo nià ±os pueden acogerse a DACA que les protege frente a la deportacià ³n y les permite obtener un permiso de trabajo por dos aà ±os. Para el resto de los indocumentados que no pueden beneficiarse de DACA las posibilidades de legalizacià ³n son escasas, siendo estos 15 posibles caminos. A tener en cuenta Ciudadanos, residentes permanentes e indocumentados que son jà ³venes y varones tienen todos una misma obligacià ³n: cumplir con el Servicio Selectivo. Y donde hay migrantes, desgraciadamente hay personas que intentan tomar ventaja de su situacià ³n y prometen beneficios migratorios que no son posibles a cambio de dinero. Si se es và ­ctima de un fraude migratorio, considerar reportarlo. Este es un artà ­culo informativo. No es asesorà ­a legal.

Overall SAT Structure - PrepScholar 2016 Students Encyclopedia

Overall SAT Structure - PrepScholar 2016 Students' Encyclopedia SAT / ACT Prep Online Guides and Tips The SAT has three sections, Critical Reading (formerly referred to as Verbal), Mathematics, and Writing. All of the questions within these sections are multiple choice, with the exception of a 25 minute essay in Writing and ten student-produced responses in Mathematics. Note: this article is a series in the PrepScholar2016 Students' Encyclopedia, a free students' and parents' SAT / ACT guide that provides encyclopedic knowledge. Read all the articles here! The Critical Reading section features two types of questions, passage-based questions and sentence completions, which test students' reading comprehension and understanding of vocabulary.Questions in the Mathematics section test students' data literacy and ability to interpret tables, charts, and graphs. Students must solve single step and multi-step problems by applying mathematical concepts from four main areas: number and operations, algebra and functions, geometry and measurement, and data analysis, statistics, and probability. The Writing section is largely concerned with testing the rules of English grammar, mechanics, and usage. Multiple choice questions measurestudents' ability to recognize errors in sentences and paragraphs and to improve them by changing word choice or idea organization. In the essay, students must develop a point of view on a prompt, often philosophical or related to a social issue. Strong essays provide relevant and well-supported examples and demonstrate varied vocabulary and a logical flow of ideas. The SAT is administered in ten subsections, each of which is strictly timed at 25 minutes, 20 minutes, or 10 minutes. The 25 minute essay is always first, and a 10 minute multiple choice Writing section is always last. Sections 2 through 7 are 25-minute sections, and sections 8 and 9 are each 20 minutes long. The order of Critical Reading, Mathematics, and Writing sections differs among tests and, apart from the first and last sections, cannot be predicted. One of the 25 minute sections on the SAT is an experimental, or variable, section and is unscored. The experimental section is used to ensure accuracy in scoring and to evaluate material for future tests. It can be Critical Reading, Mathematics, or Writing, and students have no way of knowing in advance which section it will fall in. The total testing time of the SAT is 3 hours and 45 minutes. The actual test-taking experience takes about 4.5 hours, including instructions from the proctor and three 5 minute breaks. The highest possible composite score on the SAT is 2400. The raw scores students receive on each section, based on the number of questions they got correct, incorrect, or skipped, are converted to a scaled score between 200 and 800 through a process called equating, which takes into account the performance of all students who took the SAT on a given test date. The essay is graded by two readers, who give it a score from 1 to 6 and add their scores together. A score of 0 is possible if the essay section is left blank or the student's response is illegible or completely off topic. The essay contributes about 30% to the overall Writing score, while the multiple choice makes up the other 70%. SAT multiple choice questions range in difficulty level from easy to medium to hard. Most of the Mathematics and Writing multiple choice questions increase in difficulty level throughout a given section, along with the sentence completion questions in Critical Reading. The exception to this pattern ispassage-based questions in Critical Reading, which are ordered chronologically along with the passage(s) to which they refer. Since each section is strictly timed and students may not revisit a section one time has expired, time management and pacing areparticular challenges for students on the SAT. Efficiency is a key factor for achieving strong scores. Students generally benefit from taking timed official SAT practice tests before sitting for the SAT on their registered test date. Redesign Alert The new SAT, which will be first administered in March of 2016, returns to a pre-2005 1600 scoring system, with Critical Reading and Writing scored together out of a maximum possible score of 800. The essay will be placed at the end of the test and made optional. There will be no more penalty for wrong answers, and each multiple choice question will have 4 answer choices instead of the current 5. Along with changes in format and scoring, the new SAT also focuses on some different skills and content knowledge. Read more from the SAT Encyclopedia! Further Reading What's Actually Tested on the SAT Critical Reading Section? What's Actually Tested on the SAT Math Section? What's Actually Tested on the SAT Writing Section? Grammar and Questions

Human Resource Management - US Essay Example | Topics and Well Written Essays - 500 words

Human Resource Management - US - Essay Example It should be positive towards the people belonging to non-dominant category of population for e.g. people belonging to a minority race, the women in general etc. The program should aim to provide equal opportunities, wages and working hours to such groups of people. It should display policies where women should be given posts on the basis of their qualifications and not on the basis of their gender. Since they are commonly referred to as weaker sex, the affirmative action program should act as a tool to promote the idea that though women look weaker in physical appearance they have the similar capacity as far as work is concerned. According to a website managed by the US Department of Labor, "Each contracting agency in the Executive Branch of government must include the equal opportunity clause in each of its non-exempt government contracts. The equal opportunity clause requires that the contractor will take affirmative action to ensure that applicants are employed, and that employees are treated during employment, without regard to their race, color, religion, sex or national origin." (para. 4) Thus the affirmative action program should be designed keeping all these criteria in mind. Of late there has been too many opponents of the affirmative action policies.

Were agency problems responsible for the bankruptcy of Lehman brothers Dissertation

Were agency problems responsible for the bankruptcy of Lehman brothers in 2008 - Dissertation Example However, such event took place even after repeated assurances made by the chief executives of the company mentioning their claim that Lehman Brothers was financially sound, had high liquidity levels and the leverage was present at manageable levels. The fallout of this Wall Street financial institution resulted in shattering of the consumer confidence during a fragile time in the financial market. Soon after the collapse of Lehman Brothers, a lot of decisions taken by it were found to be questionable. This study entails with finding the reasons behind the fallout of Lehman Brothers. This research study would try to find out the possible causes behind such a historic event that took place in United States which had a significant impact not only in the country but worldwide. Lehman Brothers was founded in the year 1850 and was headquartered at New York, United States. Lehman Brothers was considered to be one of the most prominent investment banks in the world and was engaged in the business of providing financial services to governments, municipalities and corporations worldwide. It became one of the largest underwriters of United States mortgage bonds (Onaran, 2008). Apart from offering services related to investment banking, Lehman Brothers was also involved in business activities corresponding to selling and buying of US treasuries and they were the primary dealers. It has been believed that the abolition of Glass-Steagall Act marked the beginning of Lehman Brothers’ demise. This landmark legislative act which was institutional since the Great Depression helped in separating the interests of commercial and investment banks and thus prevented it to have competition between them (Fox, 2009). It also helped to protect the balance sheets of the com mercial and investment banks to by allowing them to focus on the business transactions that they used to manage in the best possible way. The investment banks were typically meant to maintain highly liquid assets in their portfolios. On the other hand commercial banks were meant to handle the portfolios that were highly capital intensive in nature including corporate or real estate investments. In addition to this, the Glass-Steagall Act helped insulating the company from collapsing in case of the failure of one of the sectors by preventing similar

Police Strategies Essay Example for Free

Police Strategies Essay The topic I chose to research about is which police strategy/tactic is most effective in reducing crime and disorder. There are various forms of policing such as community-oriented policing, problem-oriented policing, hot spots policing, broken windows theory, and zero-tolerance policing. COP is a model of policing that stresses a two-way working relationship between the community and the police along with the police becoming more integrated into the local community, and citizens assuming an active role in crime control and prevention. POP is a concept created by Herman Goldstein in which he believes the police should take the categories of crime, order maintenance, and service and break them down into discrete problems and then develop specific responses to each one. Hot spots policing originated from research that revealed crime is extremely concentrated in small areas. The broken windows theory is about how crime problems develop at place, and how police should focus their role to stop crime problems from arising. According to Paul M.  Walters, there is a strategy for COP to prevent crime and disorder which is referred to as response to incidents (R2I). R2I requires law enforcement officers to react to crimes or emergency incidents. In order to promote citizen confidence in the police, officers should swiftly respond to any such incidents and establish and maintain control over the situation. R2I also requires officers to respond proactively to crime patterns. This is accomplished through such tactics as directed patrol, targeted identifications, etc. However, if police administrators do not carefully manage the R2I strategy, their departments can quickly be overwhelmed by community demands. In order to manage increased calls for police service, administrators need to monitor demand and then research as many creative ways as possible to respond to these calls. There are many ways to respond to calls for assistance that do not require the immediate dispatching of an officer in a patrol car. Other, less expensive responses may satisfy the request just as effectively. Another way to better serve jurisdictions using the R2I strategy is to invest in current technology in such areas as communications, information, case management and analysis, and transportation which may include automated mug systems, records management and retrieval systems, automated aging systems, and mobile data terminals. Department managers must then use all their resources, both technological and human, in a balanced way that produces not just activity but also results that they can measure against their mission statements. Managing the limited resources of departments to respond effectively to both incidents and calls for service, while producing the greatest advantage for their communities, requires managers to make informed, professional decisions. Foot patrol and Neighborhood Watch programs are two other popular strategies for the effectiveness of COP. A number of evaluations in the 1980s reported that while additional foot patrol did not reduce crime, it did increase feelings of safety. If people are less fearful they might not withdraw from the communities, and the process of neighborhood deterioration might not begin. Neighborhood Watch programs have repeatedly been found to have little impact on crime. Residents who live in areas with more crime, and who live in inner-city minority neighborhoods, have been less willing to participate in Neighborhood Watch programs or any other activities that involve partnership with the police. The effect of whether COP works is hard to say and evidence is very mixed. It’s hard to evaluate since it’s done differently from police department to police department. While a number of questions remain, the future of COP appears bright. According to Paul M.  Walters, the heart of the POP approach is the concept that police must be more responsive to the causes of crime, rather than merely dealing with the results of crime. Maintaining neighborhood safety can be more beneficial to the community than merely treating isolated neighborhood problems. This approach represents a significant shift in how both the public and the police view the role of law enforcement in the community. Problem-oriented policing is a proactive, decentralized approach to providing police services designed to reduce crime and disorder, and by extension, the fear of crime. Department heads achieve this by assigning officers to specific neighborhoods on a long-term basis. Long-term involvement between the officers and neighborhood residents fosters the development of credible relationships based on mutual trust and cooperation. It also allows a high-level exchange of information between citizens and police officers, as well as mutual input concerning policing priorities and tactics for specific areas of the community. Problem-oriented policing also istributes police services more effectively across the community and targets high-crime areas for problem-solving approaches that allow law enforcement to define and deal with the causes of crime. This helps to neutralize the undue influence of special interest groups that can be the recipients of preferred services when no system of community-based priorities exists. Systematic reviews and meta analysis are a method for determining whether POP reduces crime and disorder. A study was conducted by Weisburg, Telep, Hinkle, and Eck. Whether they used a more conservative mean effect size approach or examined the largest effects on crime and disorder reported, they found that POP approaches have a statistically significant effect on the outcomes examined. Importantly, the results are similar whether we look at experimental or nonexperimental studies. The small group of studies in the review allows us to come to a solid conclusion regarding the promise of POP, but it does not allow statistical conclusions regarding the types of approaches that work best for specific types of problems. They think it a major public policy failure that the government and the police have not invested greater effort and resources in identifying the POP approaches and tactics that work best to combat specific types of crime. Moreover, a much larger number of studies are needed to draw strong generalizations regarding the possible effectiveness of POP across different types of jurisdictions and different types of police agencies. The portfolio of available studies does not allow us to draw conclusions about such contextual factors and suggests that U.  S. policing has adopted POP widely without an evidence base for deciding where and when it should be used. The central conclusion of our review is that POP as an approach has significant promise to ameliorate crime and disorder problems broadly defined. Hot spots policing is easier to implement than COP and POP. Research early on showed it had promise in reducing crime. It’s easy to implement as officers are still doing patrol and making arrests. Computerized crime mapping is used in nearly every police department that does hot spots policing. Some programs can do statistical analyses to identify hot spots and find trends in crime across time and space. The programs also can have maps updated with the latest data each day. Studies have found that hot spots policing is at least moderately effective in reducing crime. It’s so hard to know what exactly works because many studies also involve elements of POP and other tactics. The broken windows theory is widely viewed as effective in policing circles after it was used in New York City in the 1990s and the city had a large crime drop. There are several suggestions for how police could best prevent crime with the broken windows theory. Police should return to the order maintenance role. Police should not ignore disorder. Police should negotiate consensus with residents and users of public spaces about what is or is not acceptable in that area. The key is to deal with disorder quickly and not let it untended, and clean it up in areas that have declined. This is hypothesized to prevent fear of crime and maintain social controls in areas such as residents aren’t afraid to intervene and/or move away from the area. Some studies have found increased complaints against the police with the broken windows theory. In conclusion, the research I obtained about the various police strategies and tactics leads to an important statement. Unfortunately, there is no clear answer. There is fairly mixed and weak research evidence about the impacts of these tactics on crime. COP seems effective in fighting fear of crime and improving police-community relations but not in fighting crime. A report by the National Academy reinforces that the most effective strategies and tactics are those that target small locations, take a focused approach, and are highly proactive.

I am alone :: essays research papers

I am alone In the speech â€Å"I am alone† by Cochise, a Native American leader address to the white people for peace. The story goes back when the Native Americans (Chiricahua tribe) owned the land in the western part of the United States known as Apache land. First the Mexicans came across their land and try to over-rule them in which resulted the Mexican War. The war lasted years and the Natives eventually overcame the Mexicans. After the Mexican War then came the Europeans who sailed across the Pacific Ocean and landed on the Apache land. At first the Europeans make friends with the Natives then the Europeans turned against them and falsely accused Cochise of kidnapping a white child. The captured of Cochise made the Natives furious and brought tension on the Europeans. In 1861 the conflict between the Natives and the Europeans begins in which caused war. The Europeans were too much to handle for the Natives; they brought many troops across the sea to fight the Indians and eventually overcame them. Many Natives and Europeans were killed in the war, the Natives were forced to give up their land and be transferred to a reservation far from Apache. It was 1871 when the Natives seek peace with the Europeans; they send Cochise to address peace with the Europeans and negotiated a new treaty which allowed the remaining Natives to stay in Apache.   Ã‚  Ã‚  Ã‚  Ã‚  In the reading it sounds like the Chiricahua tribes were gullible and compassionate. The Natives were gullible because they assume the Europeans come to Apache for visit or to make friends with them. After the horrible tragedy with the Spanish the Natives should have attacked all the intruders that came across on their land instead of befriending the Europeans and ending up loosing their territories to the Europeans. I am alone :: essays research papers I am alone In the speech â€Å"I am alone† by Cochise, a Native American leader address to the white people for peace. The story goes back when the Native Americans (Chiricahua tribe) owned the land in the western part of the United States known as Apache land. First the Mexicans came across their land and try to over-rule them in which resulted the Mexican War. The war lasted years and the Natives eventually overcame the Mexicans. After the Mexican War then came the Europeans who sailed across the Pacific Ocean and landed on the Apache land. At first the Europeans make friends with the Natives then the Europeans turned against them and falsely accused Cochise of kidnapping a white child. The captured of Cochise made the Natives furious and brought tension on the Europeans. In 1861 the conflict between the Natives and the Europeans begins in which caused war. The Europeans were too much to handle for the Natives; they brought many troops across the sea to fight the Indians and eventually overcame them. Many Natives and Europeans were killed in the war, the Natives were forced to give up their land and be transferred to a reservation far from Apache. It was 1871 when the Natives seek peace with the Europeans; they send Cochise to address peace with the Europeans and negotiated a new treaty which allowed the remaining Natives to stay in Apache.   Ã‚  Ã‚  Ã‚  Ã‚  In the reading it sounds like the Chiricahua tribes were gullible and compassionate. The Natives were gullible because they assume the Europeans come to Apache for visit or to make friends with them. After the horrible tragedy with the Spanish the Natives should have attacked all the intruders that came across on their land instead of befriending the Europeans and ending up loosing their territories to the Europeans.

In Diesel Engines The Phenomenon Engineering Essay

Abstract. In Diesel engines, the phenomenon of NOX formation is extremely dependent on the temperature inside the burning chamber. NOX formation is encouraged when the temperature inside the burning chamber additions 2000 K. Therefore, there is a demand to maintain the peak temperature inside the burning chamber under control in order to cut down NOX formation and emanation. A simple method to cut down the NOX emanations in Diesel engines is late injection of fuel. Although it reduces the NOX formation but in bend increases the fuel ingestion by 10 – 15 % . A more sophisticated technique would be exhaust gas recirculation ( EGR ) . When some of the fumes gas is taken, assorted with the fresh charge and into the consumption, the O concentration decreases which suppresses and greatly reduces the NOX formation. It is non every bit simple as it sounds because cut downing the O concentration would intend that less O is available for burning which would take to uncomplete burning and hence particulate formation. Therefore, a tradeoff between the NOX decrease and particulate formation has to be made. The particulate formation is non much of a job as the sum of the unburnt atoms in EGR can be controlled utilizing a particulate trap, which in bend would cut down particulate emanation every bit good. Introduction Diesel engines are well-known for the low fuel ingestion and really low CO emanations, but unluckily the NOX emanations are comparatively high. Over the past few old ages, rigorous emanation criterions have been developed and imposed on NOX, fume and particulate emanations emitted from the automotive Diesel engines around the Earth, sing the inauspicious effects of the pollution caused by these emanations. In order to run into the environmental statute laws, it is of import to cut down the NOX exhaust emanations as high NOX emanations still remain a major job in the pollution facet. Some of the basic steps for decrease in vehicular emanations include direct injection, turbo-charging, inter-cooling, burning optimisation both with and without swirl support, multi-valve cylinder caput, advanced force per unit area ignition system, electronic control direction system, lube oil ingestion control etc. Regardless of the advanced engineerings like those mentioned above, engineerings like fumes gas recirculation ( EGR ) , soot traps and exhaust gas after-treatment are of huge importance excessively, to provide for the progressively tough challenges posed by the environmental emanation criterions. Mechanism of NOX formation The major hinderance encountered in understanding the formation and commanding owes to the fact that burning is extremely heterogenous and transient in Diesel engines. NO and NO2 together are regarded as NOX but there are typical differences between the two pollutants. NO is a colorless and odorless gas, while NO2 is a ruddy brown gas with acrid olfactory property. Both the gases are considered toxic, but NO2 has a high degree of toxicity, which is 5 times greater than that of NO. Attention to command of formation of NO has been given, before and after burning and therefore the sum of NO2 can be controlled excessively, as it is mostly formed by oxidization of NO ( Levendis et al 1994 ) . NO is formed during the station fire burning procedure in a high temperature part. The formation mechanism was suggested by Zeldovich ( Heywood 1998 ) . The chief beginning was the oxidization of the N nowadays in the atmospheric air. The reactions regulating the formation of NO from molecular N are ; N2 + O > NO + N N + O2 > NO + O N + OH > NO + H The chemical equilibrium shown indicates that for burned gases at typical fire temperatures, NO2/NO ratios should be negligibly little. Experimental information shows that this holds true for spark ignition engines, whereas in Diesels, NO2 can be 10 to 30 % of the entire exhaust emanations of oxides of N. The NO formed can be converted rapidly to NO2 as a consequence of few reactions such as ; NO + HO2 > NO2 + OH Similarly, transition of this NO2 to NO occurs ; NO2 + O > NO + O2 Unless the NO2 formed in the fire is quenched by blending with the ice chest fluid. This account is supported by the highest NO2/NO ratios which occur at high burden in Diesels, when ice chest parts could slake the transition back to NO are widespread ( Wood 1988 ) . The atomic O concentration depends on molecular O concentration every bit good as local temperatures. Formation of NOX is about absent at temperatures below 2000 K. Hence, any technique which may be able to maintain the burning chamber temperature below 2000 K will be able to cut down NOX formation.EGR technique for NOX decreaseEGR is an effectual manner to cut down the NOX formation. Exhaust gases consist chiefly of CO2, N2 and H2O bluess. The EGR is normally defined as ; Or The most widely recognized accounts as to how EGR reduces the NOX formation are increased ignition hold, increased heat capacity and dilution of the intake charge with inert gases. The increased ignition hypothesis holds true as when the EGR causes ignition hold, it has the same consequence as late injection. The heat capacity hypothesis provinces that add-on of the inert fumes gases into the intake charge increases the overall heat capacity of the mixture which consequences in lower temperature rise for the same heat release. As for the 3rd theory of dilution, the EGR reduces NOX formation by increasing the sum of inert gases in mixture, therefore cut downing the O concentration, finally ensuing in decrease in adiabatic fire temperature ( Pierpont et al 1995 ) . Deterioration in burning takes topographic point at high tonss so it gets hard to utilize EGR as this may overly increase fume and particulate emanations. At low tonss, the unburnt hydrocarbons would likely re-burn when EGR is employed, therefore increasing the brake thermic efficiency and cut down the sum of unburnt fuel in fumes. As mentioned earlier, utilizing the right sum of EGR is a via media between decrease in NOX and an addition in carbon black, CO and unburnt hydrocarbons. For EGR values of above 50 % , usage of particulate trap is recommended due to important addition in particulates formation. The EGR is known for decrease in O concentration and this changes the construction of the fire and the continuance of burning, which are the most of import factors act uponing NO formation. The figure below shows the decrease in NOX emanation due to EGR at different tonss. Figure 1. Consequence of EGR on NOX 2.1 Problems faced while utilizing EGR When utilizing EGR in Diesel engines, certain jobs are faced, like ( a ) increased soot emanations, ( B ) debut of particulate affair into the engine cylinders. It is rather obvious that when the high speed carbon black particulates are encountered by the engine constituents, the consequence would be scratch. Sulphuric acid and condensed H2O in EGR besides cause corrosion. Harmonizing to some surveies, cylinder walls have been damaged due to lubricating oil ‘s decreased capacity, which is due to blending of carbon black atoms carried by re-circulated fumes gas. This necessitates the usage of efficient particulate trap which is effectual in cut downing fume, unburnt hydrocarbons and NOX emanations at the same time. The particulate trap requires periodic replacing when the pores get blocked due to choke offing of carbon black atoms which would increase backpressure to the engine fumes, and therefore impacting engine public presentation. Other methods for decrease in particulate emanations include multiple injections, boosting and high fuel injection force per unit areas.Categorization of EGR systemsAssorted EGR systems have been classified on the footing of EGR temperature, constellation and force per unit area. 3.1 Classification based on temperature Hot EGR: Exhaust gas is re-circulated without being cooled which increases the intake charge temperature. Fully cooled EGR: The fumes gas is to the full cooled utilizing a water-cooled heat money changer before it is assorted with the intake charge. This may ensue in condensation of wet in the fumes gas, ensuing in H2O droplets which would do unwanted effects inside the engine cylinder. Partially Cooled EGR: In this method, the fumes is non wholly cooled to avoid the H2O droplets formation and therefore the temperature is kept merely above dew point temperature. 3.2 Classification based on constellation Long Route system ( LR ) : In an LR system the force per unit area bead across the air consumption and the stagnancy force per unit area in the exhaust way make the EGR possible. The fumes gas speed creates a little stagnancy force per unit area, which when combined with the low force per unit area after the consumption air, gives rise to a force per unit area difference to carry through EGR across the torque/speed scope of the engine. Short Route system ( SR ) : SR differs from LR in the method used to put up a positive force per unit area difference across the EGR circuit. The usage of variable nozzle turbine ( VNT ) is another manner of commanding the EGR rates. Most of the VNT systems have individual entryway, which reduces the efficiency of the system by exhaust pulse separation. 3.3 Classification based on force per unit area Two different paths, low-pressure and hard-hitting path systems may be used for EGR. Low force per unit area path system: The transition for EGR is provided from downstream of the turbine to the upstream side of the compressor. Using this method, EGR is possible up to a high burden part, with an obvious decrease in NOX. High compressor mercantile establishment temperature and intercooler clogging do act upon the lastingness. High force per unit area path system: The EGR is passed from upstream of the turbine to downstream of the compressor. In this method, despite possibility of EGR at high burden parts, the extra air ratio lessenings and the fuel ingestion increases drastically.

Mobile phone: a blessing or a curse

Men check your pocket, Ladies check your purse, something is ringing and vibrating. Yes, the mobile phone, it is a portable gadget, which is made by the people and for the people. A tiny thing which was a status symbol but today, it is the necessity of everyone. Our unique ten-digit numbers allows us to receive or dial calls. It is the identity of the person nowadays and without this people stare at you as if you are not from the 21st centaury. Because for being social you do not have to meet your friend or relatives every weekend, you can call, SMS, email, write on the Facebook wall or merely tweet them. All this is possible with this protean mobile. People are really blessed as this mobile technology has changed our life completely because we have the whole universe in our pocket. A friend in need is a friend indeed, but without a mobile phone you cannot contact your friend and he will not be able to help in emergency. Mobile phone is a true friend and also a live saver, for example, your car broke down in a lonely road where there is no one to help, you can call for help with the help of a mobile phone. On the other hand you can also send SMS or email to contact someone. With the help of the thumb exercise you can send text in the wink of an eye. The other two giant social networking websites, Facebook and Twitter, are also accessible with the phone. So being in contact with friends and relatives is really easy. Other than this there are some basic handy features like Alarm, Stopwatch, Calculator, World Clock, Calendar and Tasks. Don’t you need this features everyday? But if you do not have a mobile phone you will need an alarm clock, a stopwatch, a world clock, a calendar and notebook to write the tasks. Mobile phone is an artist and can do everything you need in your daily life. Along with this if you like to be a spy these features will be very much in need like the camera, video camera and voice recording are some ingredients which will spice up your life. Not only this, a mobile also has a huge capacity to store data. So you can feed the memory with music, videos, photos, games and many more things that you like. So when you are in the airport waiting for hours, surely this will be an entertaining friend and you will never be bored. You can also watch live television so that you never miss your show or match on the go. Nevertheless you can access the whole Internet. That means you can do your work without sitting on the computer because almost everything can be done on the mobile phone. It is like a hand-computer and will never disappoint you because it works for days. To add to the total we have the GPS (Global Positioning System), NFC (Near Field Communication), Bluetooth, Wi-Fi, inbuilt compass and last but not the least the mobile application store like the android market place and the iOS app store where you will find millions of reasonable application which suits your need and style. On top of it, mobile phone makers are making slimmer mobiles with good battery backup also with a faster and better processing gadget so that it makes are life much more faster and simpler. In some countries like Australia, if you have done online booking for your flight you just have to scan a unique code, which is in the form of a barcode. While boarding the barcode displayed on the phone is scanned. This eliminates the need of a paper-boarding pass. In the future with the help of Near Field Communication we can do transactions and pay money with our mobile phone. This way we can see that the mobile phone is the greatest invention of modern time

Oedipus - The Tragic Hero Essays - Ancient Greek Theatre

Oedipus - The Tragic Hero Essays - Ancient Greek Theatre Oedipus - The Tragic Hero In the play Oedipus Rex by Sophocles, Oedipus is a classic tragic hero. According to Aristotle's definition, Oedipus is a tragic hero because he is a king whose life falls apart when he finds out his life story. There are a number of characteristics described by Aristotle that identify a tragic hero. For example, a tragic hero must cause his own downfall; his fate is not deserved, and his punishment exceeds the crime; he also must be of noble stature and have greatness. Oedipus is in love with his idealized self, but neither the grandiose nor the depressive Narcissus can really love himself (Miller 67). All of the above characteristics make Oedipus a tragic hero according to Aristotle's ideas about tragedy, and a narcissist. Using Oedipus as an ideal model, Aristotle says that a tragic hero must be an important or influential man who makes an error in judgment, and who must then suffer the consequences of his actions. Those actions are seen when Oedipus forces Teiresias to reveal his destiny and his father's name. When Teiresias tries to warn him by saying I say that you and your most dearly loved are wrapped together in a hideous sin, blind to the horror of it (Sophocles 428). Oedipus still does not care and proceeds with his questioning as if he did not understand what Teiresias was talking about. The tragic hero must learn a lesson from his errors in judgment and become an example to the audience of what happens when great men fall from their lofty social or political positions. According to Miller, a person who is great, who is admired everywhere, and needs this admiration to survive, has one of the extreme forms of narcissism, which is grandiosity. Grandiosity can be seen when a person admires himself, his qualities, such as beauty, cleverness, and talents, and his success and achievements greatly. If one of these happens to fail, then the catastrophe of a severe depression is near (Miller 34). Those actions happen when the Herdsman tells Oedipus who his mother is, and Oedipus replies Oh, oh, then everything has come out true. Light, I shall not look on you Again. I have been born where I should not be born, I have been married where I should not marry, I have killed whom I should not kill; now all is clear (Sophocles 1144). Oedipus's decision to pursue his questioning is wrong; his grandiosity blinded him and, therefore, his fate is not deserved, but it is far beyond his control. A prophecy is foretold to Laius, the father of Oedipus, that the destiny of Oedipus is a terrible one beyond his control. But when it is prophesized to Oedipus, he sets forth from the city of his foster parents in order to prevent this terrible fate from occurring. Oedipus's destiny is not deserved because he is being punished for his parent's actions. His birth parents seek the advice of the Delphi Oracle, who recommends that they should not have any children. When the boy is born, Laius is overcome with terror when he remembers the oracle. Oedipus is abandoned by his birth parents and is denied their love, which is what results in what Miller calls Depression as Denial of the Self. Depression results from a denial of one's own emotional reactions, and we cannot really love if we deny our truth, the truth about our parents and caregivers as, well as about ourselves (Miller 43). The birth of Oedipus presets his destiny to result in tragedy even though he is of noble birth. In tragedies, protagonists are usually of the nobility that makes their falls seem greater. Oedipus just happens to be born a prince, and he has saved a kingdom that is rightfully his from the Sphinx. His destiny is to be of noble stature from birth, which is denied to him by his parents, but given back by the Sphinx. His nobility deceived him as well as his reflection, since it shows only his perfect, wonderful face and not his inner world, his pain, his history (Miller 66). When he relies on his status, he is blind, not physically, but emotionally. He is

The Siege of Lucknow in the Sepoy Mutiny (1857)

The Siege of Lucknow in the Sepoy Mutiny (1857) The Siege of Lucknow lasted from May 30 to November 27, 1857, during the Indian Rebellion of 1857. Following the beginning of the conflict, the British garrison at Lucknow was quickly isolated and besieged. Holding out for over two months, this force was relieved in September. As the rebellion swelled, the combined British command at Lucknow was again besieged and required rescue from the new Commander-in-Chief, Lieutenant General Sir Colin Campbell. This was achieved in late November after a bloody advance through the city. The defense of the garrison and the advance to relieve it were viewed as a show of British resolve to win the conflict. Background The capital city of the state of Oudh, which had been annexed by the British East India Company in 1856, Lucknow was the home of the British commissioner for the territory. When the initial commissioner proved inept, the veteran administrator Sir Henry Lawrence was appointed to the post. Taking over in the spring of 1857, he noticed a great deal of unrest among the Indian troops under his command. This unrest had been sweeping across India as sepoys began to resent the Companys suppression of their customs and religion. The situation came to head in May 1857 following the introduction of the Pattern 1853 Enfield Rifle. The cartridges for the Enfield were believed to be greased with beef and pork fat. As the British musket drill called for soldiers to bite the cartridge as part of the loading process, the fat would violate the religions of both the Hindu and Muslim troops. On May 1, one of Lawrences regiments refused to bite the cartridge and was disarmed two days later. Widespread rebellion began on May 10 when troops at Meerut broke into open revolt. Learning of this, Lawrence gathered his loyal troops and began fortifying the Residency complex in Lucknow. Fast Facts: Siege of Lucknow Conflict: Indian Rebellion of 1857Dates: May 30 to November 27, 1857Armies Commanders:BritishSir Henry LawrenceMajor General Sir Henry HavelockBrigadier John InglisMajor General Sir James OutramLieutenant General Sir Colin Campbell1,729 rising to approx. 8,000 menRebelsVarious commanders5,000 rising to approx. 30,000 menCasualties:British: approx. 2,500 men killed, wounded, and missingRebels: Unknown First Siege Full-scale rebellion reached Lucknow on May 30 and Lawrence was compelled to use the British 32nd Regiment of Foot to drive the rebels from the city. Improving his defenses, Lawrence conducted a reconnaissance in force to the north on June 30, but was forced back to Lucknow after encountering a well-organized sepoy force at Chinat. Falling back to the Residency, Lawrences force of 855 British soldiers, 712 loyal sepoys, 153 civilian volunteers, and 1,280 non-combatants was besieged by the rebels. Comprising around sixty acres, the Residency defenses were centered on six buildings and four entrenched batteries. In preparing the defenses, British engineers had wanted to demolish the large number of palaces, mosques, and administrative buildings that surrounded the Residency, but Lawrence, not wishing to further anger the local populace, ordered them saved. As a result, they provided covered positions for rebel troops and artillery when attacks began on July 1. The next day Lawrence was mortally wounded by a shell fragment and died on July 4. Command devolved to Colonel Sir John Inglis of the 32nd Foot. Though the rebels possessed around 8,000 men, a lack of unified command prevented them from overwhelming Inglis troops. Havelock and Outram Arrive While Inglis kept the rebels at bay with frequent sorties and counterattacks, Major General Henry Havelock was making plans to relieve Lucknow. Having retaken Cawnpore 48 miles to the south, he intended to press on to Lucknow but lacked the men. Reinforced by Major General Sir James Outram, the two men began advancing on September 18. Reaching the Alambagh, a large, walled park four miles south of the Residency, five days later, Outram and Havelock ordered their baggage train to remain in its defenses and pressed on. Major General Sir James Outram. Public Domain Due to monsoon rains which had softened the ground, the two commanders were unable to flank the city and were forced to fight through its narrow streets. Advancing on September 25, they took heavy losses in storming a bridge over the Charbagh Canal. Pushing through the city, Outram wished to pause for the night after reaching the Machchhi Bhawan. Desiring to reach the Residency, Havelock lobbied for continuing the attack. This request was granted and the British stormed the final distance to the Residency, taking heavy losses in the process. Second Siege Making contact with Inglis, the garrison was relieved after 87 days. Though Outram had originally wished to evacuate Lucknow, the large numbers of casualties and non-combatants made this impossible. Expanding the defensive perimeter to include the palaces of Farhat Baksh and Chuttur Munzil, Outram elected to remain after a large stash of supplies was located. Rather than retreat in the face of the British success, rebel numbers grew and soon Outram and Havelock were under siege. Despite this, messengers, most notably Thomas H. Kavanagh, were able to reach the Alambagh and a semaphore system soon was established. While the siege continued, British forces were working to re-establish their control between Delhi and Cawnpore. Lieutenant General Sir Colin Campbell in 1855. Public Domain At Cawnpore, Major General James Hope Grant received orders from the new Commander-in-Chief, Lieutenant General Sir Colin Campbell, to await his arrival before attempting to relieve Lucknow. Reaching Cawnpore on November 3, Campbell, a veteran of the Battle of Balaclava, moved towards the Alambagh with 3,500 infantry, 600 cavalry, and 42 guns. Outside Lucknow, rebel forces had swelled to between 30,000 and 60,000 men, but still lacked a unified leadership to direct their activities. To tighten their lines, the rebels flooded the Charbagh Canal from the Dilkuska Bridge to the Charbagh Bridge (Map). Campbell Attacks Using information provided by Kavanagh, Campbell planned to attack the city from the east with the goal of crossing the canal near the Gomti River. Moving out on November 15, his men drove rebels from Dilkuska Park and advanced on a school known as La Martiniere. Taking the school by noon, the British repelled rebel counterattacks and paused to allow their supply train to catch up to the advance. The next morning, Campbell found that the canal was dry due to the flooding between the bridges. Interior of the Secundra Bagh after Campbells attack in November 1857. Public Domain Crossing, his men fought a bitter battle for the Secundra Bagh and then the Shah Najaf. Moving forward, Campbell made his headquarters in the Shah Najaf around nightfall. With Campbells approach, Outram and Havelock opened a gap in their defenses to meet their relief. After Campbells men stormed the Moti Mahal, contact was made with Residency and the siege ended. The rebels continued to resist from several nearby positions, but were cleared out by British troops. Aftermath The sieges and reliefs of Lucknow cost the British around 2,500 killed, wounded, and missing while rebel losses are not known. Though Outram and Havelock wished to clear the city, Campbell elected to evacuate as other rebel forces were threatening Cawnpore. While British artillery bombarded the nearby Kaisarbagh, the non-combatants were removed to Dilkuska Park and then on to Cawnpore. To hold the area, Outram was left at the easily held Alambagh with 4,000 men. The fighting at Lucknow was seen as a test of British resolve and the final day of the second relief produced more Victoria Cross winners (24) than any other single day. Lucknow was retaken by Campbell the following March.

Hunger Assignment Example | Topics and Well Written Essays - 750 words

Hunger - Assignment Example However, despite these efforts there is still proving not be enough food to feed everyone who is in need. The article, â€Å"How to Feed Nine Billion,† by Evan Fraser and Andrew Rimas, discusses how the horrible drought in Africa in 1992 had the potential to be incredibly devastating. However, although the drought was not good, the farmers in the effected regions were able to survive the drought because these farmers had already procured genetically modified seeds that were designed to survive these sorts of dry conditions and continue to thrive This is why, the African drought of 1992 is referred to as the â€Å"drought that never was† (Fraser & Rimas , 2012) However, just because these farmers were able to withstand this drought does not resolve the issues of hunger in Africa or worldwide. The authors are adamant that between the 2050 and 2080 we will be essentially in need of more food than we will be able to produce to meet the growth in population that will exist a t that point. Finding means to develop an implementable plan, a sustainable solution, and an agreeable means to making it happen is no easy feat. Discussion The authors make strong points highlighting the details of hunger in the world and discussing the contributing factors and potential means of improving the situation. The idea of just sending other countries what they need to survive is admirable but essentially just a Band-Aid on a much more serious wound. Besides it has been established that the United States is not yielding the large crops they once did. We, ourselves, may, in the not too distant future, be unable to provide for ourselves. The authors, also, in this case, make quite a point to support the use of genetically altered seeds; if not for them the African drought may not have fared so well for the people. Issues However, GMO crops and food products are a very sensitive subject, here in the United States, as well as all over the world. Although GM seeds are modified only enough to allow them to grow in unlikely environments and to defend themselves from pesticides and insects that can compromise the crops yield, it does not automatically make the growing or consuming of these food items or the foods produced from them dangerous or unhealthy The fact that 80% of the foods are or contain elements of genetic modification, is frightening to many people and has caused a great deal of distrust towards the whole concept of genetically modified foods. In Haiti a gift of modified seeds was sent to aid the hunger issues in the country, several Haitians set fire to the building where the seeds were kept, because they did not want the modified seeds (Catsoulis, 2013). However the ethical, moral, social, and, potentially, legal issues associated with GMO foods, production and labeling, is an issue that will not be easily settled. The question that this article does raise that deserves to be addressed is how can a developed country, like the United States a nd underdeveloped countries both be suffering from hunger, when one has so much and the other so little. According to experts, it is a misconception that hunger stems from lands with little to offer. In truth, it is countries with surpluses of food that seem to reveal issues with hunger. According to the United Food and Agriculture Organisation, FAO, it is the countries, like the United States, that produce one and half times the amount of food needed to provide for everyone, yet 1 in 7 continue to go hungry (Green Peace, 2013) Why does this happen? Money is the answer. When food is plentiful, one still needs money to purchase the foods; the poor automatically go without. For now the issue involving hunger in the U.S. is related to money but, as stated earlier, that may

Ray's Cleaning Services Paper Research Example | Topics and Well Written Essays - 3750 words

Ray's Cleaning Services - Research Paper Example This is a major planning strategy that will ensure the company meets its objectives. In our efforts to ensure all the employees have the necessary academic qualifications and skills, Ray’s Cleaning Services will undertake personal profile, discussion with former employers and job observation as the major evaluation techniques. Another notable strategy that Ray’s Cleaning Services will emulate is financial planning. This will entail initiating a competitive payment plan that will improve the performance of our employees. In its recruitment program, Ray’s Cleaning Services will undertake internal as well as external hiring. Additionally, the business is considering cultural diversity of its workers as a way of enhancing positive relationship among the employees. An online account is another strategy that the company will employ to ensure constant communication with the applicants. Major employment documents that will be retained by the company include Form W-4, For m 1-9 and Specific employee’s records. To ensure that our business complies with government regulations, Ray’s Cleaning Services will emulate key laws that include business license, letter of registration, collective labor laws, Occupational Safety and Health Administration, Environment rules and individual labor laws. It its efforts to improve the performance of workforce, Ray’s Cleaning Services will offer a number of benefits that includes annual training programs, life insurance cover, accidents cover, part-time courses in local universities, annual bonus, gifts and promotion among others. The challenges facing local and international companies has called for effective planning including hiring qualified and skilled manpower in order to ensure continuity in the production process. One of the major causes of increased rate of turnover is reduced level of motivation due to low salaries and lack of appropriate benefit plan. Additionally,