Should we drill for oil in Alaskas wilderness free essay sample

The world, as we know it, is in the midst of having an oil crisis. Our nation starves and bends at the will of this dreadful calamity. Our deprivation for this atrocious corruption has led us to look for oil deposits in the Alaskan Wilderness. The US needs oil and by drilling for oil on our own land, we would help our economy, but in doing so would destroy the beauty of the wilderness and harm many others. The matter on hand is that should we drill for oil in Alaska’s wilderness? My opinion and answer to this question would simply be no. The United States of America should not drill for oil in the Alaskan wilderness. I hold strongly to this belief for I am someone who does not tempt to greed but rather, I wish to look for alternatives that would reduce oil consumption. Drilling for oil in the Alaskan wilderness would not only destroy the home of many Arctic animals, but at the same time, it will have no real effect on our economy. We will write a custom essay sample on Should we drill for oil in Alaskas wilderness? or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page According to a study by the US Energy Information Agency, the oil from the Alaskan Wilderness â€Å"would only reduce US oil imports by 4%† (Document C), which would barely put a dent in our economy. Not only that but it would only supply us for â€Å"no more than 6 months† in spite of our starvation and at the rate in which we consume oil. We hold less than 3% of all known oil reserves and â€Å"the amount from the Arctic Refuge is a drop in the bucket† (Document C). The effect is too small for the scar that would be left behind after we have drilled the land. The Alaskan Wilderness that we wish to drill belongs to the Inupiat Eskimo people. By drilling in their land, we would ruin their traditional way of life. They â€Å"rely on the land and resources of the North Slope for physical, †¦cultural, and †¦economic well-being† (Document D). The Eskimo people live on this land and although drilling may not have harmed them yet, slowly, over time, the land will degrade by pollutants and drilling. â€Å"We have watched the oil and gas development at Prudhoe Bay.. and have seen first-hand how development can co-exist with our natural resources and way of life. They will soon realize and see that drilling will ruin the resources, the land, and the beauty that their culture and tradition relies and depends so heavily upon. We should put this into careful consideration for we do not want to repeat history. The author in Document D may not be the best person to represent the Inupiat people. He is a shareholder of a corporation that would benefit financially from the drilling. This leads back to greed and so the consensus of the other Inupiat people who rely heavily on their environment may not agree. The drilling will pollute resources, scare off food sources, and ruin the environment itself. If the Inupiat people hold a strong relationship with their traditional way of life, they won’t be happy with the outcome of the drilling. We have seen this too many times in the past, where violence will concur and repeating history and mistakes is something we should take into careful consideration. Do we want to take the land away from people who have there lived for centuries and have developed their way of life based on their land? One of the last of the world’s true wilderness, the Alaskan National Wildlife Refuge is â€Å"one of the largest sanctuaries for Arctic animals, (where)†¦ it is a vital birthing ground for polar bears, grizzlies, Arctic wolves, caribou, and the endangered shaggy ox† (Document E). By drilling for oil on this land, we would potentially endanger the wildlife and the environment. Pollutants such as sewage sludge and garbage would bleed into fresh water sources, intoxicating animals that drink there. The fragile tundra would turn into an industrial zone with pipes and roads that would stretch across the refuge, disturbing the wildlife. We have have to clear the environment to form roads, pipes, and oil rigs. The refuge is supposed to remain a pristine refuge for wildlife, not an industrial zone. The oil deposits are â€Å"spread across the coastal plain in more than 30 small deposits, which would require vast networks of roads and pipelines that would fragment the habitat disturbing and displacing wildlife. † (Document E) If we wish to preserve the small amount of true wilderness we have left on this world, we would not drill for oil in the Alaskan Nation Wildlife Refuge. In conclusion, I hold a firm grasp on the belief that we should not drill for oil in the Alaskan Wilderness. It would not help us economically for its effect is too small for the consequences that would follow. It could potentially anger the indigenous people of the land and ruin their traditional way of life. Not only that but it would turn the refuge into a sprawling industrial zone, disturbing, harming, and displacing the wildlife. The only way for the US to satisfy our starvation and deprivation for fuel and oil is to spend that money that we were going to use to drill on researching and developing, safer, cleaner, and better alternatives.

Documentacin para solicitar el ajuste de estatus

Documentacin para solicitar el ajuste de estatus Para solicitar el ajuste de estatus hay que tener una serie de documentos que se han de enviar junto a la peticià ³n. Antes de tramitar el ajuste, asegurarse de poseer toda la documentacià ³n que se pide para todo tipo de solicitantes y tambià ©n la especà ­fica para la categorà ­a dentro de la que cae cada extranjero que pide convertirse en residente permanente mediante este beneficio inmigratorio. Destacar que el ajuste de estatus permite a un migrante presente ya en Estados Unidos cambiar su situacià ³n migratoria y adquirir la condicià ³n de residente permanente y, por tanto, en poseedor de una tarjeta de residencia, conocida como green card. Pero es muy importante conocer quià ©nes lo pueden pedir y quià ©nes no pueden gozar de este beneficio.   En este artà ­culo se informa sobre: documentos que deben presentar todos los solicitantesdocumentos que sà ³lo se presentan segà ºn el caso de cada unodocumentos que debe presentarse sà ³lo si se pide el ajuste de estatus por determinadas categorà ­asquà © hacer con los documentos relativos a posibles faltas y/o delitos Quà © documentos se deben adjuntar con la peticià ³n de ajuste de estatus La peticià ³n de ajuste de estatus debe ir acompaà ±ada de una serie de papelerà ­a de apoyo.   Existen unos requisitos comunes para todo tipo de peticià ³n de ajuste, que son los siguientes. Adems, leer al final del artà ­culo los especà ­ficos para la situacià ³n de cada migrante. Ya que no es lo mismo solicitar el ajuste por, por ejemplo, peticià ³n de esposo que es ciudadano, a pedirlo por asilo.   Formulario de peticià ³n Para solicitar el ajuste de Estatus, la planilla a completar es la I-485. Se puede encontrar gratuitamente de la pgina oficial de Servicio de Inmigracià ³n y Ciudadanà ­a (USCIS, por sus siglas en inglà ©s). Utilizar siempre la à ºltima versià ³n, es decir, la que està © en esa pgina justo cuando se realiza la solicitud.   Pago El cheque para el pago debe hacerse a nombre del Department of Homeland Security. El costo actual varà ­a segà ºn las circunstancias de cada solicitante. Asà ­: Menores de 14 aà ±os que solicitan ajuste de estatus con al menos uno de sus padres: $635.Menores de 14 aà ±os que no solicitan con ninguno de sus padres: $985.Entre 14 y 78 aà ±os: $985 ms $85 para datos biomà ©tricos. Total: $107079 o ms aà ±os: $985.Refugiados: nada, ya que es gratuito.Las personas que piden ajuste de estatus para ellas mismas en aplicacià ³n de VAWA por violencia domà ©stica pueden solicitar una waiver para no pagar la tarifa de la solicitud si cumplen una serie de requisitos. Esto tambià ©n aplica a los solicitantes de la Visa T de trfico de personas, por la visa U de violencia, por el registry o por el programa de Inmigrantes Juveniles Especiales (SIJ). Certificado de nacimiento Basta con una copia legible del mismo, pero debe contar con el sello de la autoridad que lo emite y cumplir con una serie de requisitos. Si est en un idioma distinto al inglà ©s, debe ser traducido y acompaà ±ado por una carta de certificacià ³n de la traduccià ³n. Fotografà ­as Dos fotos idà ©nticas tipo pasaporte tomadas en los 30 dà ­as anteriores a enviar la solicitud. Escribir con un lpiz en el reverso el nombre del beneficiado y si tiene un alien registration number, incluirlo. Visas no inmigrantes En los casos en los que una Embajada o consulado americano haya emitido al extranjero una visa no inmigrante en los 365 dà ­as anteriores a enviar la solicitud del ajuste de estatus, incluir en la documentacià ³n la fotocopia legible de la pgina en la que est estampada la visa. Informacià ³n biogrfica Si se tiene entre 14 y 79 aà ±os, completar y adjuntar la planilla G-325 A. Rà ©cord mà ©dico y de vacunas Para ello hay que utilizar la planilla I-693. Estas son las reglas que rigen para el examen mà ©dico para obtener la residencia permanente. Si bien hay excepciones a la obligacià ³n de pasar por un examen mà ©dico. En primer lugar, para los refugiados, para quienes en la mayorà ­a de los casos es suficiente completar la porcià ³n del formulario dedicada a las vacunas. Asimismo, los prometidos de ciudadanos americanos y sus descendientes que han pasado un examen mà ©dico en el à ºltimo aà ±o antes de viajar a Estados Unidos al solicitar una visa K no tienen que presentar otro ms. Bastar con que acrediten las vacunas. Finalmente, tampoco debern someterse a un examen mà ©dico las personas que hayan vivido en Estados Unidos desde enero de 1972 y que està ©n ajustando su estatus por lo que se conoce como el registry. Evidencia de estatus migratorio en Estados Unidos Enviar una copia legible del documento que se conoce como I-94, registro de entrada y de salida. La copia debe ser por ambos lados.   Si se ha ingresado a los Estados Unidos con una tarjeta de cruce, conocida tambià ©n como visa lser, enviar una copia de la misma tambià ©n por los dos lados. Finalmente, si no se tiene ese rà ©cord de registro de entrada y de salida, realmente es el momento de hablar con un abogado ya que en muchas ocasiones, aunque no en todas, esto puede ser el origen de grandes problemas con las autoridades de Inmigracià ³n.   Notificacià ³n de que se ha recibido el paquete   Si se desea, es posible pedirle al USCIS que confirme por sms o por correo electrà ³nico que se ha recibido la peticià ³n para el ajuste de estatus. Para ello, completar la planilla que se conoce como G-1145. Documentos para acompaà ±ar a la peticià ³n de ajuste de estatus, segà ºn la categorà ­a Dependiendo de la razà ³n por la que el solicitante puede pedir el ajuste de estatus se deben incluir ms documentos en el mismo paquete de peticià ³n. A continuacià ³n, los diferentes casos. Las personas que ajustan su estatus por peticià ³n de un familiar Los ciudadanos y los residentes permanentes pueden solicitar a familiares que caen dentro de determinados grados de parentesco. Pero no todos pueden ajustar su estatus y à ©ste es un punto fundamental que debe de ser tenido en cuenta antes de enviar los papeles a Inmigracià ³n. Adems, si se est en una categorà ­a que est sujeta a là ­mites anuales de casos aprobados, verificar el boletà ­n de visas ms reciente para asegurarse de que ya se puede solicitar el ajuste. Si se cumplen todos los requisitos, se debe incluir en la peticià ³n de ajuste de estatus un affidavit of support que tambià ©n se conoce con el nombre de declaracià ³n de sostenimiento. Para ello hay que completar el formulario I-864. Adems, si se trata de una peticià ³n realizada por un ciudadano estadounidense para su cà ³nyuge, padres o hijo soltero menor de 21 aà ±os, incluir el formulario I-130 o, si ya se envià ³ con anterioridad, incluir copia de la carta que se recibià ³ del USCIS con el nombre de I-797 Notice of Action donde se confirma que el I-130 ha sido aprobado. En todos los dems casos por peticià ³n de un familiar enviar copia del I-797 de que el I-130 que se presentà ³ est aprobado y asegurarse de que la fecha de prioridad est al corriente en la categorà ­a que aplica a la persona que se pide. Esto se hace consultando el à ºltimo boletà ­n de visas. Las personas que buscan el ajuste por peticià ³n laboral Adjuntar una carta oficial del empleador en la que se declara, entre otras cosas, el salario que se paga y en la que confirma que sigue existiendo ese puesto de trabajo para el que se solicita ese trabajador extranjero. La carta debe estar redactada en papel oficial de la empresa. Copia de la carta recibida por USCIS en la que se confirma que la peticià ³n de un trabajador extranjero solicitada mediante el formulario I-140 ha sido aprobada. Si la fecha de prioridad en la categorà ­a a la que pertenece el inmigrante pedido est al corriente entonces es posible enviar el I-140 conjuntamente con la peticià ³n de ajuste de estatus. Asimismo, si la empresa que pide un empleado extranjero es en un cinco por ciento o ms propiedad de la familia del pedido entonces ser necesario completar el formulario I-864, que es una declaracià ³n jurada de sostenimiento. Si la persona para la que se pide el ajuste de estatus est en los Estados Unidos con una visa H-1B o una L-1, enviar prueba de estatus. Finalmente, son necesarias copias de pagos de salario recientes, de  certificados de estudios, cuando son necesarios y de que el Departamento de Trabajo ha aprobado el Certificado Laboral.   Asilados Copia de la carta o del I-94 en el que consta que se le ha concedido esa condicià ³n. Ajuste derivado Para cà ³nyuges e hijos solteros menores de 21 aà ±os de otra persona que pide el ajuste y ellos tambià ©n pueden pedirlo de forma derivada en virtud de su relacià ³n familiar. Estas personas deben enviar en su peticià ³n las copias de los documentos que prueben la relacià ³n entre el beneficiario principal y el derivado, como certificados de matrimonio, partidas de nacimiento, adopcià ³n, etc. Asimismo, incluir evidencia de que la peticià ³n de ajuste de estatus del beneficiario principal ha sido enviada al USCIS o ha sido aprobada. Ajuste de estatus por el registry Aportar toda la documentacià ³n que sirva para probar el caso y demostrar la presencia en el paà ­s desde el 1 de enero de 1972. Personas que solicitan ajuste por perdà ³n 245 (i) Los migrantes indocumentados que pueden beneficiarse de la medida conocida como 245 (i) deben enviar tambià ©n el formulario que se conoce como I-485 Supplement A. Visas T o Visas U Los migrantes que solicitan el ajuste de estatus porque tienen una visa T por trfico humano o una visa U por haber sido và ­ctima de cierto tipo de violencia deben enviar tambià ©n con su aplicacià ³n el Supplement E del formulario I-485 y toda la documentacià ³n adicional que se pide en dicha planilla. Extranjeros en las categorà ­as de SIJ o inmigrantes militares especiales Deben adjuntar la peticià ³n de esta categorà ­a que, si se concede, har que haya automticamente visas de inmigrantes para ellos. Tambià ©n debern contar con una autorizacià ³n policial (police clearance). Documentacià ³n a enviar dependiendo del caso de cada solicitante Solicitud de permiso de trabajo Si se desea tener uno se debe completar el formulario I-765. No pagar la cuota de este formulario porque ya est incluida en el pago del formulario I-485 para ajuste de estatus. Si inicialmente no se envà ­a la solicitud del permiso de trabajo y ms tarde se cambia de opinià ³n y se decide hacerlo, enviar el formulario sin pago. Pero en este caso se debe incluir una carta que se ha recibido del USCIS donde se confirma que hay un caso abierto de ajuste de estatus. Solicitud de permiso para viajar fuera de Estados Unidos y regresar Es lo que se conoce como advance parole. No es necesario pedirlo, pero puede hacerse. En cuestià ³n de pago de este formulario aplica lo que se ha dicho en el prrafo anterior para el permiso de trabajo. Waiver En algunos casos es necesario presentar tambià ©n el formulario I-601 para pedir un perdà ³n, tambià ©n conocido como permiso. Son casos muy especà ­ficos y esto es un tema delicado que conviene tratar siempre con un abogado. Planilla G-28 Sà ³lo en los casos de contar con un abogado que lleva este caso. El solicitante de ajuste de estatus tambià ©n tiene que firmarla, si es que cuenta con asistencia de letrado o de un representante acreditado. Rà ©cords criminales En el formulario I-485 hay varias preguntas sobre posibles problemas con la ley, incluyendo el contacto con drogas. Y se pregunta especà ­ficamente no sà ³lo por acciones cometidas en los Estados Unidos sino tambià ©n en otros paà ­ses.  Pueden darse los siguientes casos: Primero: rà ©cord totalmente limpio. No se necesita hacer nada. Segundo: arrestado o detenido por cualquier fuerza del orden pero no se han presentado cargos. En estos casos solicitar la declaracià ³n oficial original de la policà ­a que realizà ³ el arresto o de la corte competente en la que se declare que no se presentaron cargos. Tercero: arrestado o detenido cuando se han presentado cargos. En este caso presentar original o copia certificada por corte del arresto y sus consecuencias: desestimacià ³n (dismissal), condena (conviction) o absolucià ³n (acquittal). Cuarto: Condenado o enviado a un centro de rehabilitacià ³n o de servicio comunitario. Se necesita original o copia certificada por corte de la condena y de haberla cumplido o de estar en libertad condicional.   Quinto: Arrestado o condenado pero cuyo arresto o condena ha sido declarado secreto o eliminado del rà ©cord. Se necesita original o copia certificada por corte de tal hecho. Es posible que no se sepa que se tiene una orden de deportacià ³n o de arresto dictada en contra. Si cabe la posibilidad, el mejor consejo es asegurarse de cul es la situacià ³n antes de enviar documentacià ³n al USCIS pidiendo un beneficio migratorio.   En cuanto a las meras infracciones de trfico, no suelen causar problemas, excepto en casos graves o cuando hay un problema de DWI (alcohol o drogas). Si hay problemas por delitos o faltas en el pasado, es el momento de hablar muy seriamente con un abogado. En algunos casos ser imposible obtener una aprobacià ³n del ajuste de estatus y no se sacar la green card. Pero en otros muchos ser posible pedir con à ©xito una waiver (tambià ©n conocido como perdà ³n o permiso). Lo que nunca debe hacerse es mentir porque es una violacià ³n migratoria con graves consecuencias. Y hay que tener en cuenta que el USCIS tiene acceso a bases de datos del FBI sobre todo tipo de delitos y faltas (incluidos los casos sellados o expurgados. No mentir con esto tampoco). Reglas generales Se recomienda adjuntar los originales cuando asà ­ especà ­ficamente se pida, como por ejemplo en los casos de rà ©cords de policà ­a y de las cortes. En los dems casos, es suficiente una copia legible. Mientras se procesan los papeles se puede verificar de varias maneras el estatus del caso. Y siempre  lo mejor es no cambiar de lugar de residencia Pero si es necesario hacerlo, no olvidar el requisito fundamental de notificar ese cambio de domicilio al USCIS. Tomar este quiz - trivial o test, segà ºn el paà ­s - sobre cà ³mo obtener y conservar la tarjeta de residencia. Verificar que se conoce informacià ³n fundamental. Y una vez que se obtenga la tarjeta de residencia, a disfrutarla. Y considerar solicitar la ciudadanà ­a americana por naturalizacià ³n cuando se cumplan los plazos para poder pedirla. Este artà ­culo es meramente informativo. No es asesorà ­a legal.

Journal 3 Essay Example | Topics and Well Written Essays - 250 words - 7

Journal 3 - Essay Example The application of this policy helps to motivate employees to attain higher goals (Blazey, 2013). Effective retention strategy is also part of compensation policy in organization. This strategy helps employees to remain committed on the organization to build successful career. Benefits policy can also help organization to attract best employees for the organization. Some of the necessary benefits plans of organization are to focus on employee needs, increase employee satisfaction and motivate existing employees by keeping them healthy (Henderson, 2002). Some of the benefits provided by organization are retirement benefit, insurance policy, sick leave, income protection on disability, vacation leave and substitute work engagements. The application of compensation and benefits can help organization to increase revenue which can lead to effective customer service interaction and high productivity. The successful compensation and benefit plan can help to attract competent employees and maintain sustainability in the competitive

Learning Styles Essay Example | Topics and Well Written Essays - 1250 words

Learning Styles - Essay Example c) move around a lot, fiddle with pens and pencils and touch things 14. I choose household furnishings because I like: a) their colours and how they look b) the descriptions the sales-people give me c) their textures and what it feels like to touch them 15. My first memory is of: a) looking at something b) being spoken to c) doing something 16. When I am anxious, I: a) visualise the worst-case scenarios b) talk over in my head what worries me most c) can't sit still, fiddle and move around constantly 17. I feel especially connected to other people because of: a) how they look b) what they say to me c) how they make me feel 18. When I have to revise for an exam, I generally: a) write lots of revision notes and diagrams b) talk over my notes, alone or with other people c) imagine making the movement or creating the formula 19. If I am explaining to someone I tend to: a) show them what I mean b) explain to them in different ways until they understand c) encourage them to try and talk them through my idea as they do it 20. I really love: a) watching films, photography, looking at art or people watching b) listening to music, the radio or talking to friends c) taking part in sporting activities, eating fine foods and wines or dancing 21. Most of my free time is spent: a) watching television b) talking to friends c) doing physical activity or making things 22. When I first contact a new person, I usually: a) arrange a face to face meeting b) talk to them on the telephone c) try to get together whilst doing something else, such as an activity or a meal 23. I first notice how people: a) look and dress b) sound and speak c) stand and move 24. If I am angry, I tend to: a) keep replaying in my mind what it is that has upset me b)... Someone with an Auditory learning style has a preference for the transfer of information through listening: to the spoken word, of self or others, of sounds and noises. These people will use phrases such as 'tell me', 'let's talk it over' and will be best able to perform a new task after listening to instructions from an expert. These are the people who are happy being given spoken instructions over the telephone, and can remember all the words to songs that they hear! Someone with a Kinaesthetic learning style has a preference for physical experience - touching, feeling, holding, doing, practical hands-on experiences. These people will use phrases such as 'let me try', 'how do you feel' and will be best able to perform a new task by going ahead and trying it out, learning as they go. These are the people who like to experiment, hands-on, and never look at the instructions first! People commonly have a main preferred learning style, but this will be part of a blend of all three. Some people have a very strong preference; other people have a more even mixture of two or less commonly, three styles.

Copper Ion Effects On Mung Beans Germination Environmental Sciences Essay

Copper Ion Effects On Mung Beans Germination Environmental Sciences Essay This experiment was planned to investigate the effect of different concentrations on copper ion on seed germination of mung beans. The experiment uses seed germination as a parameter in the presence of varying concentration of copper ion solution (Cu2+) in copper (ii) sulphate (CuSO4). Solutions used were 300 ppm, 200 ppm, 100 ppm, 75 ppm, 50 ppm, 25 ppm, and 0 ppm and the seeds were all soaked for 6 hours, and then sown on Petri dishes with a wetted cotton layer. The seeds were watered with the same volume of Cu2+ solution of respective concentrations. The numbers of seeds germinated were recorded after 20 hours, and the germination rate was calculated. Results showed that germination rate increases as concentration decreases. An analysis was done using the Pearson product-moment correlation coefficient (PMCC), and it showed a statistically significant negative linear relationship between concentration of Cu and germination rate as the calculated r-value was greater than critical va lue (Cr) at 5% significant level. Research and Rationale Plants as micronutrients require a number of heavy metals, which are found naturally in soil.13 However, the global buildup of metals in the environment is increasingly becoming a problem.1 Toxic metals continue polluting the biosphere by volcanoes, natural weathering of rocks, and by industrial activities such as combustion of fossil fuels and mining.2 Heavy metal pollution has accelerated since the beginning of the industrial revolution. Copper (Cu) is one of the main metal pollutants, and usually results from human activities such as mining and the use of fertilizers.4 Cu is an essential element needed in trace amounts in plants, about 4-30 ppm of the approximate dry weight in plants (Raven and Johnson 1999), associated with enzyme activity which catalyses the oxidative reactions in various metabolic pathways.(4) An excess causes a reduce in germination, growth, respiration, photosynthesis and also causes severe membrane decomposition.4 It becomes toxic as it interferes with the enzyme activity, acting as a non-competitive inhibitor, destructing the tertiary bonds in some enzymes, thus altering and inhibiting enzyme activity.4 Human life becomes at risk once these plants develop tolerance mechanisms against Cu, and when these plants are incorporated into our food chain.(2) Mung bean is part of the human food chain as it is a favourite ingredient in Asian food.5 It is commercially grown in many regions of Asia. An ability of it to become Cu tolerant would pose a high risk on human health due to Cu accumulation in the body.2 This investigation also serves to show the type of soils suitable for mung bean growth in agriculture. Soils contaminated by copper or near industries are deemed unsuitable. The seed- Vigna radiata, commonly known as mung beans was chosen as it has a short life cycle and is small, thus large numbers of the seeds can be used as not much space is taken. (487 Words) Germination rate, which is usually expressed in percentage, shows the number of seeds that is likely to germinate; based on a particular plant species.6 Germination is one of the most critical stages of development in a plants life cycle. It is at this stage where the plants are more susceptible to injuries, water stress or diseases. 7 Experimental Hypothesis The lower the concentration of Cu2+ in the solution, the greater the germination rate of mung beans. Null Hypothesis There is no correlation between the different concentrations of Cu2+ in the solution and the germination rate of mung beans. Variables: Manipulated variable : Different concentrations of Cu2+ from Cuso4. (ppm) Responding variable : Germination rate of mung beans (%) Fixed variables : Mass of Cuso4 (g) Volume of solution used for soaking (30 ml/beaker) and for moistening the cotton (50 ml/petri dish) Temperature Light Intensity Humidity (632 Words) Apparatus: Petri dishes Label stickers Weighing balance Dropper Beakers (600 ml) Volumetric flask (1000 ml) Measuring cylinders (100 ml, and 500 ml) Pipette Schott bottles Materials: 3.937g of Cuso4 Distilled water Mung bean seeds (A) Cotton Planning Number of seeds used: 15 The first trial was to determine the condition needed for germination. Three different conditions were identified- in the dark (inside a cupboard), normal laboratory conditions, and outside the laboratory (under normal environment). The seeds were soaked for an hour in distilled water and then sown on wetted cotton. For each condition, three replicates were prepared. The results were observed after 20 hours. (736 Words) Conditions Number of seeds Germinated Mean Number of Seeds Germinated Replicate 1 Replicate 2 Replicate 3 Laboratory 6 9 8 8 In the Cupboard 8 14 11 11 Garden 6 9 5 7 Table 1: Germination rate of seeds in different conditions Germination rate= Number of seeds germinated/Total number of seeds 100 The results showed that the seeds grown in the dark had the highest germination rate. This is in line with what has been written about the germination of mung beans in websites stating that mung beans germinate in darkness.5 Therefore, it was decided that further germination of the seeds would be carried out in the dark under room temperature of 25Â °C in the mornings and 22Â °C during night. The second trial was a combination to find out the most suitable duration to soak the seeds and the best concentrations needed to carry out the experiment. For starters, the concentrations decided were a range from 1000 parts per million (ppm), 750 ppm, 50 ppm, 250 ppm, 100 ppm and 0 ppm (distilled water). The stock solution of 1000 ppm was prepared by the following method. (929 Words) To make 1000 ppm of Cu using CuSo4.5H2o Molar Mass of CuSo4.5H2o= 249.5g Atomic weight of Cu=63.5g 1g of Cu in relation to molar mass of salt= 249.5/63.5 = 3.931g Hence, 3.931g is weighed out from CuSo4.5H2o and dissolved in 1000ml of distilled water to make a standard solution of 1000ppm of Cu.8 From the stock solution, the serial dilution method was applied to make a concentration of 750 ppm. From 1000 ml of the stock solution, 750 ml of the solution was diluted in 250 ml of distilled water in a volumetric flask, to make up 1000 ml of 750 ppm solution of Cu. To make up 500 ppm solution, 500 ml of stock solution was diluted in 500 ml of distilled water and so on. The duration to soak was set to one hour, three hours, six hours and 12 hours. The seeds were soaked in 6 beakers containing the different concentrations, and sown to germinate on Petri dishes. Wetted cotton was used, and the respective concentration of the solution the seeds were soaked in was used to wet the cotton. 15 soaked seeds of similar size were chosen to germinate in two replicates. (1125 Words) Concentration (ppm) Duration of Soaking (Hours) 1 3 6 0 A 10 8 10 B 11 10 10 Mean 11 9 11 Germination Rate (%) 73.3 60.0 73.3 100 A 5 6 13 B 2 2 12 Mean 4 4 13 Germination Rate (%) 26.7 26.7 86.7 250 A 0 5 2 B 0 4 6 Mean 0 5 4 Germination Rate (%) 0 33.3 26.7 500 A 0 0 4 B 0 0 5 Mean 0 0 5 Germination Rate (%) 0 0 33.3 750 A 0 0 0 B 0 0 0 Mean 0 0 2 Germination Rate (%) 0.0 0.0 0.0 1000 A 0 0 0 B 0 0 0 Mean 0 0 0 Germination Rate (%) 0.0 0.0 0.0 Table 2: Germination rate of seeds in different conditions soaked for different durations (1286 Words) Observations were made 20 hours later, and in concentrations of 1000 ppm and 750 ppm, no seeds germinated. 500 ppm was the highest concentration whereby seeds germinated while for 0%, the germination rate was 80%. The seeds that was soaked for six hours showed the highest seed germination rate for the concentrations whereby seeds did germinate. Therefore, it was decided that the best range of concentrations to be used included 0 ppm, and also a value slightly lower than 500 ppm, and the duration of soaking was 6 hours. For seeds soaking in 500 ppm solutions ad above, the seeds appeared slightly purplish, and some even turned black. The seeds germinated at concentration of 500 ppm had its roots stunted with necrotic tips. To ensure the results were more reliable statistically, the number of seeds to be used in the actual experiment was increased to 50 seeds per concentration instead of 15. The actual experiment also included two replicates, using similar methods to obtain more reliable results. The Pearson product-moment correlation coefficient (PMCC) was chosen to analyse the data obtained. Experimental Procedures A stock solution of 1000ppm of Cu2+ was prepared from 3.937g of Cuso4 (as indicated in the trial). The serial dilution method is used to prepare different concentrations of Cu2+ in Cuso4 solution. For example, 10 ml of 1000ppm solution was pipetted out and mixed with 990ml of distilled water in a 1000 ml volumetric flask to obtain a 10ppm solution, and so on. Besides 10 ppm, 25 ppm, 50 ppm, 75 ppm, 100 ppm, 200 ppm, and 300 ppm were prepared and stored in labeled Schott bottles. (1558 Words) At least a 150 seeds were chosen randomly and placed in a beaker to be soaked with a 300 ppm solution (50 ml) for six hours. Two Petri dishes were prepared and labeled A and B. Two layers of white cotton were placed in each Petri dish, spread evenly. The cottons were moistened with 300 ppm solution of the same volume (30 ml). 50 seeds of similar size were chosen and sown in each labeled Petri dish and placed inside the cupboard to germinate. Observation was made 20 hours after sowing. Germination was said to have occurred once the radicle was visibly extended from the surface of the seed for about a minimum of 5mm. The number of seeds germinated was determined, and the mean and the germination rate were calculated. Steps 2 to 8 were repeated for different concentrations- 200 ppm, 100 ppm, 75 ppm, 50 ppm, 25 ppm, and 0 ppm, and all results were recorded in Table 3, a graph was plotted and a PMCC test was used to analyse the data. Risk Assessment All glasswares, such as measuring cylinders and volumetric flask were handled with extra care as they can break easily and may then cause injuries. The soaked seeds were handled with gently as they are very fragile. While using the measuring cylinder, volumetric flask and pipette to measure the amount of solution needed, the eye-level was ensured to be perpendicular with the scale on those apparatus as to prevent parallax error. This was crucial while mixing the stock solution for a little difference may actually affect the percentages of all the other solutions. (1833 Words) Results Concentration (ppm) Number of Seeds Germinated Mean Number of Seeds Germinated Germination Rate (%) A B 0 49 50 50 100 25 46 48 47 94 50 44 45 45 90 75 40 38 39 78 100 15 13 14 28 200 7 10 9 18 300 7 9 8 16 Table 3: Germination of seeds in different concentrations Calculating germination rate: = = = 78% (1910 Words) Statistical Analysis (1932 Words) The PMCC test was chosen to measure the strength of linear dependence between two variables-concentrations and germination rate. The correlation coefficient, r ranges from +1 to -1. A value of zero indicates no linear correlation between the said variables, while +1 indicates a linear equation explains the relationship between concentration and germination rate perfectly, with all the points from the data lying on a line for which germination rate increases as concentration increases. A value of -1 indicates that all points from the data lie on a line whereby germination rate decreases as concentration increases.9 x 0 25 50 75 100 200 300 ∑X=750 y 100 94 90 78 28 18 16 ∑Y=424 x2 0 625 2500 5625 10000 40000 90000 ∑x2= 148750 y2 10000 8836 8100 6084 784 324 256 ∑y2=34384 yx 0 2350 4500 5850 2800 3600 4800 ∑xy= 23900 SS (x) = = =68392.857 SS (y) = = =8701.714 SS (xy) = = = -21528.571 ( Words) The correlation coefficient, r, is found using the formula: = -0.8825 (negative indicating a negative correlation between variables) r = 0.8825 > 0.754 Cr for 5% confidence level. The analysis using PMCC proved a statistically significant negative linear relationship between the concentrations of Cu2+ in CuSO4 and germination rate, as the calculated r value was larger than Cr at 5% confidence level. Hence, null hypothesis is rejected and experimental hypothesis is accepted. A higher concentration of Cu2+ leads to a lower germination rate of mung beans. Data Analysis The statistical analysis using PMCC proved that low concentration of Cu did result in a greater germination rate of mung beans, as shown in Table 3 too which shows the number of seeds germinated after treatment with respective concentrations of Cu2+ in CuSO4 solutions for 20 hours. The table shows that only a very low concentration of Cu allows germination. Graph 1 illustrates the trend and relationship between the variables. It can be seen clearly that as the concentration of Cu2+ in CuSO4 increases, the rate of germination decreases. Distilled water recorded the highest germination at 100%, while the lowest germination rate was noted when the concentration used was 300 ppm. There is a great difference in germination rate from 75 ppm to 100 ppm, about 50%. Increase the concentration from 25 ppm to 50 ppm and 200 ppm to 300 ppm only showed a decrease in 4% and 2% respectively. This may one of the inconsistencies of the experiment. Distilled water, or 0 ppm acted as a control in this experiment. From the results obtained, all the seeds germinated when soaked in distilled water. From the trials, seeds soaked in distilled water did not germinate more than 80%, however in the actual experiment it was 100%. After much research, I concluded that the results obtained from the actual experiment was valid as it supports the results obtained from various other research published.1, 10 The inconsistencies that occurred may have been due to: Some of the seeds may have been already damaged (trials) and so germination was impossible The cotton layers used in 0 ppm during trials were too thick, and became dry fast, thus made it impossible for the seeds to absorb the water and enable germination in 20 hours. Mixing errors could have occurred causing the drop between 75 ppm and 100 ppm, as the concentrations of the solutions could have been higher than it was suppose to be. ( Words) Evaluation The degree of seed germination in the presence of Cu2+ is to some extent a measure of resistance of mung beans to this toxic metal.11 Germination, is a process said to occur when a dormant seed begins sprouting into a seedling, under the right growing conditions.14 This process is highly dependent on external and internal conditions. Light or darkness, temperature, water and oxygen and considered to be the important external conditions that may affect germination. Imbibition, the process by which water is taken up by the seeds, causes the soaked mung bean seeds to swell and start softening, thus the breaking of the seed coat.11, 6 This makes germination easier. Hydrolytic enzymes are activated (due to water), and these enzymes digest the food source in the seeds into chemicals, that are useful metabolically. 6, 7 Excess Cu is detrimental as it becomes toxic. It interferes with the enzyme activity, acting as a non-competitive inhibitor, destructing the tertiary bonds in some enzymes, thus altering and inhibiting enzyme activity.4 It combines with the thiol groups, breaking the hydrogen bonds and disulphide bridges holding the 3-D shape together (of an enzyme). In order to germinate, amylose is needed, and is metabolized by amylase. The interference of toxic level of Cu causes the inhibition of amylases, thus preventing the food store in the cotyledon to be broken down, depriving the embryo from carbohydrate needed for respiration and production of energy for germination.4 ( Words) There were some limitations in this experiment. The temperature of the surroundings is one of it. It was assumed that the temperature in the cupboard was to be 22 and 25 at night and morning respectively. However, along the day, the temperature could have fluctuated. This could have affected the germination process, as the time taken for germination to occur could have been longer. Besides, the humidity of the surroundings was also not measured and thought to be constant all the time. However, due to changes in weather (rain at night, hot sun in the mornings) during the time of experiment, there could have been changes in relative humidity and temperature too. Some of the seeds may have already been damaged but appeared normal. These seeds could have been sown for germination, thus it can be certain that the seeds that did not germinate were purely due to high toxic Cu levels or not. The use of a large sample had given enough replicates to support the conclusion for this experiment. The results are reliable as the experiment can be controlled and also repeated. This investigation only stressed on the effects of Cu on the germination of mung beans, without subjecting the seeds to different abiotic or biotic pressures. Modification could be made by comparing the, effects of other heavy metals such as Nickel, Cadmium and Lead on the germination of mung beans. Besides investigating the rate of germination only, the length of the radicle can measured (plant growth) to see the effects on growth of mung beans. The growth of plants may show a more visible change due to the toxic metals. Plus, other varieties of seeds such as sunflower, orca or cabbage can be used to test the levels of metal toxicity tolerance on other plants species. ( Words) Conclusion With reference to the results obtained and statistical analysis made, it can be concluded that the lower the concentration of Cu in the solution, the greater the germination rate of mung beans, Vigna radiata. This is because Cu is an enzyme, non-competitive inhibitor which alters and inhibits enzyme activity. Thus experimental hypothesis is accepted, while null hypothesis is rejected. Evaluation of Sources Source 7 and 13 are published books written by well-known authors in the scientific community. The source is reliable as it has been revised, recognized and undergone a series of editing before being published. Sources 1,2,3, 10 and 11 are scientific journals. Scholars wrote it and the journals have been peer-reviewed, and have a high level of scientific creditability. Therefore, these sources should contain valid information. Sources 4,5,6,8,9,12 and 14 are websites. These are sites that have been referral site to by many people and the information in it are also cited, thus it is reliable. ( Words) Appendix Figure The apparatus used to make the stock solution-500ml Measuring Cylinder, 100ml Measuring cylinder, 1000ml volumetric flask ( Words)

Comparing The Dead and A Portrait of the Artist as a Young Man Essay

The Dead and A Portrait of the Artist as a Young Man    Unlike the preceding stories in Dubliners, which convey the basic theme of paralysis, "The Dead" marks a departure in Joyce's narrative technique.   As one critic notes, in this final story of Dubliners:   "The world of constant figures has become one of forces that, in relation to each other, vary in dimension and direction" (Halper 31).   Epstein has offered some insight into Joyce's technique in Portrait: "Each section . . . contains significant 'timeless' moments in the life of the artist, selected from a lifetime of events.   The reader's attention traces the line of the curve from one point to the next until the complete curve is defined. . . . Both he [the artist] and the reader became completely aware of the landscape of his soul and the nature of it"   (103). The above excerpt is provided for the benefit of the student only.   The complete essay begins below. To venture into the morass of Joycean scholarship reminds one of the closing lines of the poem "Dover Beach" by Matthew Arnold.   It reads: ...The world, which seems To lie before us like a land of dreams, So various, so beautiful, so new, Hath really neither joy, nor love, nor light, Nor certitude, nor peace, nor help for pain; And we are here as on a darkling plain Swept with confused alarms of struggle and flight, Where ignorant armies clash by night. ( 1148 ) The sense of anxious hope captured in these lines is much like the struggle experienced by one seeking to offer a fresh perspective on the complex works of James Joyce.   On a deeper level, though, the poem suggests an important aspect of Joyce's prose.   Arnold's poem is often singled out as a prime exa... ....   New   York:   Penguin, 1976. Levin, Harry.   "The Artist." James Joyce, A Portrait of the Artist as a Young Man:  Ã‚   Text, Criticism, and Notes.   Ed.   Chester G. Anderson.   New York:   Penguin,   1968.   399-415. Loe, Thomas.   "'The Dead' as Novella."   James Joyce Quarterly 28 (1991):   485-98. Power, Arthur.   Conversations with James Joyce.   Ed. Clive Hart.   London:   Ã‚  Millington, 1974. Torchiana, Donald T.   Backgrounds for Joyces' Dubliners.   Winchester, MA:   Allen   and Unwin, 1986. Welsh, James M.   "The Dead."   Masterplots II:   Short Story Series 5   Ed. Frank N.   Magill.   Pasadena, CA:   Salem Press, 1986, 510-15. Winters, Kirk.   "Joyce's Ulysses as Poem:   Rhythm, Rhyme, and Color in   "Wandering Rocks."   Emporia State Research Studies 31 (Winter 1983), 5-44. Wright, David G.   Characters of Joyce.   Dublin:   Gill and Macmillan, 1983.   

Loneliness in of Mice and Men

8. Loneliness is a very important theme in Of Mice and Men. Which characters are lonely and why? Of Mice and Men illustrates the loneliness of ranch life during the Great Depression in the 1930’s. Steinbeck creates a lonely and a blue atmosphere at many times in the novel. He uses words ‘Soledad’ which is referred to solitude, which means loneliness; and the card game ‘Solitare’ which means by one’s self. Not all the characters are lonely; Steinbeck makes it clear that only Crooks, Curley’s wife and Candy are the lonely characters in the ranch.The loneliest character is Crooks. He is isolated from the other ranchers because of his race. He isn’t allowed to join any social activities at the ranch and is completely left out alone. He’s so lonely that he considers reading books to accompany him. Even though he doesn’t show it, he is desperate to have someone to talk to. When Lennie comes in his room, Crooks just keeps o n talking to him and doesn’t care whether he was listening or not. Crooks says to Lennie â€Å"A guy goes nuts if he ain't got nobody. Don't matter no difference who the guy is, longs he with you.I tell ya a guy gets too lonely an’ he gets sick. † This shows that he desperately needs a friend to talk to and he’s at the point where he is becoming emotionally sick of it. Crooks also says â€Å"An' never a God damn one of `em ever gets it. Just like heaven. Ever'body wants a little piece of lan'. It's just in their head. † This shows that he has no hope for a bright future and that he doesn’t believe that the men from the ranch are ever going to a better place. The second loneliest is Candy, an old swamper at the ranch who is disabled due to an accident in the past.His only companionship is his ancient dog, until Carlson shoots it for him because it is old and useless, just like Candy. Later on in the novel, he wishes he should have shot the do g himself, which is similar to the ending of the novel. When his dog dies, he looks for new friendship, he doesn’t want to grow older being by himself. He hopes George and Lennie will become his friends when he hears them talking about their dream ranch. He offers his savings for the dream, which makes George and Lennie's dream begin to be actually possible to achieve. S'pose I went in with you guys. That's three hundred and fifty bucks I'd put in†¦ How'd that be? † This shows that he really intends to be part of the dream. He is useless at the ranch, he knows that he’s going to be sacked sooner or later and he will have no place, no friends and nothing. That’s why he is giving his savings for the dream ranch, which possibly he could live the rest of his life in. Candy desperately tries to be a part of the dream shows us how lonely he really is. Curley's wife is the least lonely character out of all three.She’s controlled by her husband, Curley , who doesn’t let her speak to any of the men on the ranch, which leads her into being lonely. Even though Curley's wife is mentioned frequently, Steinbeck doesn’t reveal her real name throughout the whole novel. All the ranchers consider her as an object, instead of a normal human being. The ranchers don’t even bother to start a conversation with her because of her husband, who thinks he is all tough and strong. Curley’s wife has no female friends on the ranch, so the ranchers are her only option, but too bad they don’t want to be friends with her.She realizes that Lennie isn’t like the other men and she intends to be friends with him. She says to Lennie â€Å"Think I don’t like to talk to somebody ever once in a while? † This shows that she’s trying to say that she is desperately wants to talk to somebody as she hardly ever talks to anyone because nobody at the ranch listens to her. Although she has a husband which sho uld make her not as lonely as she really is, the fact is that he ignores her and just goes out to Cat houses once in a while, yet he doesn’t allow to talk to anybody or to go anywhere.I think in conclusion, loneliness have a big affect on people. It makes Crooks, Candy and Curley’s wife suffer. Crooks says he’s sick because he doesn’t have anybody to talk to. Candy is very old and his old dog is his only friend, which then gets shot, which makes him even lonelier. Curley’s wife dies because she has no one to talk to as well, so when she starts talking to the childish Lennie, who accidently kills her in the barn. I think the other men like Slim, Carlson and Whit are also lonely but they don’t make it as a big deal and they just go on with their lives