Research: Children With Mental Illness Essay

The purpose of this paper is to critique an article from the National Association of Social Workers, Inc. The article selected is titled â€Å"Child custody loss among women with persistent severe mental illness.† (Hollingsworth, 2004) I selected this article due to its applicability to child protective services which is where my field practicum is taking place. The components of this article are clearly defined and broken down into subheadings as followed: Abstract, Introduction, Theoretical Framework and Research Design, Method, Analysis, Results, Discussion, Implications for Mental Health Policy and Services, Conclusion, and References. (Hollingsworth, 2004) The layout of the article makes it easy for the reader to follow and understand key elements and terms of the research. The title provides a clear cut description of what the article is written about as well. The variables are identified and defined under the â€Å"methods† subheading; it also provides a definiti on of individual variables, environmental variables, and how child custody is defined for the purposes of this research. (Hollingsworth, 2004) The statement of the problem is descriptively explained in the introduction and supported with statistical analysis provided in the research article. The purpose is clearly defined under the â€Å"theoretical framework and research design† section explaining that the study was to test the hypothesis which stated that by researching history of child custody loss among women with severe persistent mental illness the custody loss would be higher than those women who did not have this type of illness. (Hollingsworth, 2004) The hypothesis and research question provide insight into how the author plans to show a correlation and then build effective policies and interventions based upon this evidence. The research question asks â€Å"What are the circumstances under which women with severe mental illness lose custody of their children?† (Hollingsworth,  2004) This gives the reader a concise question that allows them to visualize the direction of the research itself. The rese arch question is quickly followed by characteristics that have been observed among the participants which define what may have led to a mother losing custody of her child. The article then provides examples of behavior patterns and socioeconomic factors that may impact the variables mentioned. (Hollingsworth, 2004) The theoretical framework and research section re-states the purpose of this research and also provides supportive information as to why this knowledge is important to obtain for the target population mention. The theoretical framework states that the author used the Human Ecology Theory, which fits the problem presented because there is enough past information available, and biopsychosocial elements provided to be able to test the hypothesis and provide reliable/measurable data. (Hollingsworth, 2004) Based upon the information in the article the Human Ecology Theory will view the mother with severe persistent mental illness in her environment, assist in predicting outcomes, and also provide measurable data. The data collected will enable social workers and mental health workers to connect these women and families to the correct resources so that the mother may regain custody and have access to the resources that she requires. The variables presented appear to be appropriate for the problem as it has been defined. The individual’s biopsychosocial information is measurable including whether there is a history of substance abuse and treatment for mental illness. The environmental variables are also measurable by gathering data related to the individual’s neighborhood, child behavior, poverty conditions, and social support. (Hollingsworth, 2004) It is important to mention that each term used in the variables section was further defined and a description was given as to how the information was considered from these separate groups. The author also recognizes that there are factors besides the mother’s mental illness that could play a part in her mental functioning. (Hollingsworth, 2004) I feel that it is important for the author to acknowledge these outlying factors that may influence the data that has been collected. The assumptions made in this article include some bias toward how child protective services and the legal system will treat a mother that has persistent severe mental illness. It is not hard to understand why this assumption is made and it is reasonable to assume that the legal system and  child protective services may assume too much based upon a quick assessment of the mother’s mental state. I feel that the discrimination based on the research information provided is also related to geographic areas more so than others. If there is a low income area that is lacking access to qualified mental health professionals it would be safe to assume that child protective services would remove the children since other resources are not available. The overall design of this article is constructed around quantitative data with the results of the research being constructed around this format; the author also provides some supportive evidence through qualitative research. The design is ap propriate to answering the research questions and providing an easy to follow guide for the readers to digest the information. In my opinion the author also did a good job recognizing different threats to the validity of the data that was collected. The author did this by recognizing what those threats were and how it was accounted for in the data that was collected, and what impact it may have had on the results. The sample selection was appropriately described and broken down into measurable categories. The author stated: â€Å"Participants were identified from among those enrolled in a National Institute for Mental Illness funded three-wave longitudinal study of mothers with severe mental illness.† (Hollingsworth, 2004) The author further explains that the sample size began with 379 women; after wave 3 of the study 322 women remained. (Hollingsworth, 2004) Women were removed from the study throughout the study depending upon different variables listed as disqualifiers, such as a mother losing custody of her child/children for less than three months. Some women chose to remove themselves from the study and others lost contact with the individuals conducting the study at different times which in turn made the women disqualified. (Hollingsworth, 2004) The process of collecting the data is clearly defined under the â€Å"method† section of the article. The author describes the structure of the questionnaire as a â€Å"3 wave longitudinal study.† (Hollingsworth, 2004) In my opinion the inconsistencies would come from the participant answering truthfully and consistently within the 3 wave study. In the 3 wave study the data was collected initially through structured interview questions, with some open-ended questions used, this is where some of the inconsistencies could be from depending on who was analyzing the answers. (Hollingsworth, 2004) The author stated that a â€Å"life  history calendar† was included in the 3rd wave to increase accuracy. (Hollingsworth, 2004) Another consideration would be to note that the participants were paid to participate in the study, but the interview was conducted in the privacy of the participant’s home. (Hollingsworth, 2004) The interviews were conducted by a trained female interviewer that was racially and ethnically similar to that of the participant. (Hollingsworth, 2004) This is note-worthy because it shows some variables that were not stated as having a possible influence on the results of the data collected. I would take into consideration that the interviewer, although professionally trained, may have had biases in favor of the participants that were subconsciously conveyed and could have led the participants to answer the interviewer in a particular manner. The results were able to depict what the variables between the participants that permanently lost custody of their children and those that did not lose custody of their children. One interesting finding is that women that were not married were more likely to permanently lose custody of their children. (Hollingsworth, 2004) The hypothesis for this provided by the author is that the married women more than likely had more immediate support in th e home. (Hollingsworth, 2004) One of the variables listed was the behavior problems from the children of women with persistent mental illness; the author notes that in order to determine whether this is the children simply reacting to the mother’s persistent severe mental illness or whether the children have true behavioral issues needs to be studied further. (Hollingsworth, 2004) With that being considered the results found that the children’s behavioral issues had little impact on whether or not the mother lost custody. (Hollingsworth, 2004) The implications recognized are geared toward mental health policy and services; the author states that one part of the study that was initially thought of as an individual variable was actually something that could be considered as an environmental factor as well. (Hollingsworth, 2004) The example given was that unmarried women may not be discriminated against due to be unmarried and this being the cause for their custody loss, but may have lost custody due to less resources than someone who has a partner.(Hollingsworth, 2004) The second noteworthy implication is that individuals with active symptoms of psychosis or depression can present a significant risk to their children, so the children are removed for their  own protection and not due to discriminatory factors.(Hollingsworth, 2004)

First World War Causes Essay

What were the causes and consequences of the First World War? There were several reasons that led to WWI; the European nations were growing more powerful and the arm forces as well. Another cause was the alliance system which cause conflict between several countries because there were treaties and agreements in which not every country agreed with. Imperialism also took a great part of the war, many countries wanted to colonize other countries such as Africa, South America, the pacific, and Asia. Almost all of the countries had a great military power and as all of them were fighting for the same reason, the war was inevitable. Many rivalries emerged among these countries. One of the most important causes of the war was the assassination Austro- Hungarian Archduke Franz Ferdinand. The archduke was killed by a Serbian and his death was seen as a threat to the Austria-Hungary multinational empire. This event turned into a declaration of war. Due to the alliance, the European Nation got involve in the conflict and it resulted in a world war. Russia was defending Serbia and surrounded Germany and Austria-Hungary (who were allied) with their troops. Germany was already planning to invade Russia by using the Schlieffen Plan which was supposed to prevent war, but the plan fail. The First World War had as many consequences as causes. the end of the great war was marked by the creation of the League of Nation which consisted of peacekeeping so this horrible events would not happened again and to have a collective security. Unfortunately the United States did not join the treaty and this weakened the treaty. The WWI ended with the signing of the Treaty of Versaille which stated that Germany was the only responsible for the war that occurred and they demanded that Germany was to pay the reparations. This treaty also established the changing of the borders in Europe. One of the mayor consequences of the war was the great depression it left. The war left many countries without money, which meant there were no jobs, no money to export or import.

Dollhouse Paper Essay

Love may be compared to a child’s dollhouse. Their dreams and aspirations in life start with the simple imaginations they build while playing with the said toy. From the way they perceive the entrance to be, to the little details of the house, these dreams begin with a little imagination that become a reality, as they grow older. I guess the little things are the ones that matter after all.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   As a little girl, I have imagined a lot of things while playing with my toys. This is where I have built my perceptions about life, in general, and how it was to get married and have my own family. I imagined everything, down to the smallest detail, with a commercial model as my partner. Funny at first, but I never imagined that I would actually live to do the things that I have dreamed of as a young girl.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   I grew up to become an architect with my bestfriend, Alex. Being friends since we were five years old, we overcomed heartaches and struggledto go on with life together. We knew very well the strengths and weaknesses of each other, making our friendship stronger as time passed by. We practically planned how our future will be when we have our own families. The funny thing there was, Alex never really had a girlfriend. My two relationships ended with me choosing to be with Alex rather than with them. Somehow, I could not imagine myself living a life without the bestfriend I have known for many years.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   The time came when Alex was starting to change. Whenever his phone rang, he would immediately tell me that he has to go, and would not say where. I was beginning to feel jealous about the whole situation, for he was not around whenever I needed him to be. I was not used to this kind of treatment from him. I was deemed to find out what was happening. I followed him during one day, from his house to the bowling arena. I was surprised with what I saw—a pretty young blonde, who looked like me was hugging and laughing with my bestfriend. I was furious. I stormed towards them, and told shouted on the girl. They were both surprised with what I did, then Alex asked me why I did that. I couldn’t answer him, so I left.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Months have passed, and Alex and I were still not communicating. I was embarrassed with my actions, and decided not to take any of his calls. I felt desolated. I came to the realization that I was in love with my bestfriend for as long as I can remember. Now, it was too late for me to fix things with the love of my life. I tried calling him several times, but he never answered. Then one day, I got a call from Alex’ girlfriend, saying that they were involved in an accident. She knew how much I meant to Alex, so she said that she wanted me to be there beside him. I rushed to his aide, crying, regretting the things that I have said on the day we argued. I knew that I was in love with my bestfriend, but I had no way of fixing it. Alex has a girlfriend now, and nothing in the world could ever change it.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   When Alex opened his eyes, his girlfriend was there beside him. I was uncomfortable. I knew that I was the one who should be seated beside him. I decided to stay outside, just in case he did not want to see me. I felt nervous. I did not know how to react when the time came that we had to see each other face to face. I did not want to lose him again, nor did I want to end our friendship. I decided to accept the fact that he could never be mine.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Soon after, his girlfriend followed me and told me that Alex was looking for me. I followed her and stood at his bedside. â€Å"Finally†, he said. I was confused with how he reacted. Then both the girl and Alex smiled. Then Alex said, â€Å"I am happy that you are here. Atleast now I know that I meant a lot to you.† Then the girl said, â€Å"Louise, I am not his girlfriend. I am his closest cousin, Sandy.   Alex brought me to the bowling arena to play your favorite sport. He has told me a lot about you, and said how important you were in his life†. I admit, that I was really embarrassed with the situation that I was in. Then Louise opened the dresser and pulled out what seemed to be a  Ã‚   dollhouse. â€Å"This is something that I have reserved for you all theses years, Louise.† A two-story peach house with a wide garden, a patio, and a terrace on the second floor surprised me. It was the   house that I imagined myself to have since I was seven. I felt tears accumulating in my eyes. Then Alex added, â€Å"this is the reason why I studied Architecture. When we were younger, I promised you that I will build your dream house. This is the design I built, Louise – my years of love all placed in   this house.†   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   From then on, Alex and I were never separated. We know have two children and are living   in my dreamhouse, which we have worked for. As for my dollhouse, it was placed in one part of our living room, that symbolized our love for each other.

EMPLOYABILITY AND PERSONAL DEVELOPMENT Article Example | Topics and Well Written Essays - 2000 words

EMPLOYABILITY AND PERSONAL DEVELOPMENT - Article Example The following discussion reveals all the important issues highlighted on after intense evaluation of the factors that coincide with learning and employability. The process of elevating employability and personal development The phenomenon is crucial in guaranteeing the society of educated professionals, and career oriented individuals. The subject seeks to emulate the ideal personal skills sort in the elite after completion of academic courses. Employability also seeks to ensure to learners that the working environment has numerous obstacles, which can only be derailed by the expression of the ideal knowledge prior to seeking jobs in the specific industries reflecting personal careers (Gallagher, 2013, p. 259). During personal development, the workshop highlighted that students in different learning institutions needed to involve themselves in self-awareness evaluation processes. Such processes would enable them to accrue an understanding of their individual capabilities, and ideolog ies of the perceptions that may be shown by their potential employers on the event of seeking employment opportunities. ... Further, the study describes that students should rely enviably on the present resources in order to be capable of realizing the future outcomes. Personal esteem and identity match conclusively in this case since students are able to adapt the variables prior to emulation of their personal abilities (Gonon, 2008, p.89). Such practices are salient in enabling the students to realize their potentials in emulating a match in accordance to the needs and wants of the employment fraternity. The seminar highlighted on students’ modelling and rehearsal programs as subjects to the underpinning theoretical frameworks. Mainly, the seminar highlighted on John Locke’s 1968 arguments that employability procedures coincided abundantly individuals’ own goal setting, and future forecasts on their lifelong wishes. Arguments are that the process of employability and accountability further facilitate the improvement of the ideal personal abilities and talents. It is sound for studen ts to understand that their potential is ideal to the acquisition of reassurances that they will be able to earn employment opportunities after completion of their studies. Evidence from the London employability and personal development seminar highlighted that students would be working towards achievement of their future dreams only if they would be building upon their future dreams. Further, these efforts would saliently lead to the acquisition of their dream lives thus they would live quality lives. The theoretical frameworks were important in assuring learners of success since the knowledge accrued during the process would be exhorted in the future learning process. The aspect

Group Project Assignment Example | Topics and Well Written Essays - 1500 words - 1

Group Project - Assignment Example The club has also provided an option for training parents along side the children so that they can also develop their skills. It is a good forum because parents get the necessary training and support they need to help their children. Pyramid club adopts early intervention strategies that are aimed at helping children, who show signs of mental difficulties instead of waiting until the problem worsen. It is very important to provide early intervention strategies to children, who show early signs of mental problems to prevent them from suffering severe mental cases when they become adults. The aim of this program is to provide children with social and emotional skills so that they can live a happy life. Pyramid meets the key requirements to cater for children suffering from mental problems (Ohl, Fox & Mitchell, 2013). The club provides evidence based intervention that demonstrates its purpose and analyses its needs clearly. In addition, the pyramid also provides a baseline for measurement and gives feedback on the outcomes. The club is well equipped with facilities for intervention and are enough to cater for all children. Well-targeted clubs like pyramid provide efficient intervention clubs that will later lead to better outcomes and improve children skills. Children are selected for pyramid club using Goodman’s SDQ questionnaire that is used to measure their social skills and emotional development. SDQ questioner is later replaced with ContinYou’s questioner that is provided by parents and young adults. This replacement is part of a screening process and evaluation of the club. Consequently, those who manage the club take part in post evaluation processes. This club was developed and has been extensively tested in the US. The assessment includes qualitative and quantitative measurement and response from children and young adults. The University of Ulster follows a strength-based research that reflects learners flourishing theory, and

Mayan Project Essay Example | Topics and Well Written Essays - 750 words

Mayan Project - Essay Example Hence, symbols could represent either a word or a single syllable. This was a highly elaborate set of glyphs written by scribes who were members of the priesthood. The language was usually written in two blocks arranged in columns, and was read from top to bottom, from left to right. It was rich with words and phonetic rules, and only elite members of the community knew how to write (Beatriz n.d). The Mayan numerals were based on a base-twenty (vigecimal) numeral system, which were made up of three symbols: zero was represented by a shell shape, one by a dot and give by a bar. Numbers above 19 were written as a combination of these written in a descending vertical line. Three cells were written, the uppermost one represented the number of 400s in the number, the middle one represented the number of 20s in it and the lower one represented the 1s in it. In case a number was larger than that, a new row would be started. The Mayans would also rarely use face number glyphs, but this use was very uncommon and mostly appeared in monumental carving. The Mayans used addition and subtraction when needed, and there is also evidence that they were familiar with and used the concepts of infinity and fractions for various needs ("The Maya Mathematical" n.d; "Mayan Numerals" 2009). A Mayan stela (also called stele) was a stone or wooden slab that was very tall and quite wide. It was used mainly for funeral or commemorative purposes, and consisted of the name and titles of the deceased or living person for whom it was erected. It also included of lavish paintings, carvings and inscriptions depicting and describing that person. More often then not, revered rulers or hieroglyphic texts were inscribed to immortalize a unique feat or achievement during a rulers reigning period or simply his character and greatness. It was also used to remember important dates and occasions, something which proved to be

Ethical Decisions Essay Example | Topics and Well Written Essays - 1250 words

Ethical Decisions - Essay Example Due to the nature of this circumstance, various ethical issues usually tend to arise. The major ethical issues that usually arise include: autonomy, beneficence, non-maleficence, and justice. Minors are considered not be competent enough to consent to treatment. A proxy with parental responsibility is expected to make decisions which are deemed to be in the best interests of the minor especially in life-saving care (Gaudine, et al., 2011). However, if it is not deemed to be so, the decision made by the proxy can be overruled by the court. The court can also consent on the child’s behalf and can overrule the refusal by the parent to consent to life-saving care. This is evidenced by the overruling of cases over Jehovah’s Witnesses believers refusal to consent to life saving blood transfusion. Whereas this seems to be against certain ethical principles, they are deemed to be within these principles in some respect (Clark, Cott, and Drinka, 2007). It is against this backgro und that this paper will seek to examine and evaluate how each of the four major ethical principles can be applied to this issue. Autonomy The autonomy principle is one of the guiding medical ethics principles that mean that patients have the right to choose what is done to their respective bodies or that of the people they have responsibility over (Clark, Cott, and Drinka, 2007). ... to try and convince the judge that the court should take temporary child custody and appoint a guardian so as to allow the life-saving treatment to be undertaken on the child (Gaudine et al, 2011). This is where the court consent applies on the child. In most cases, the parents who refuse life-saving care for a minor child usually do so for religious reasons as they refuse the fairly standard medical treatment. A good and most common example is that of the Jehovah Witness members refusing blood transfusion of their family members. Nonetheless, should parents allow the treatment of their children even when the treatment seems to be high-risk and complicated one? This ethical principle asks the question of whether the doctors should take the parents who think that the life-saving care is high-risk and complicated (Beauchamp and Childress, 2001). Beneficence This ethical principle states that whatever is done should, before all else, of benefit to the patient. The principle requires tha t those with the responsibility over the patient including the parent of minors and the doctors should take actions that benefit the patient, and not to the detriment of the patient (Clark, Cott, and Drinka, 2007). While obviously it appears that one cannot do anything that does not help the patient, people are sometimes tempted to do things, when asked by other physicians or families that are of no or of marginal benefit to patients. For example, doing a test or surgery that is unlikely to help the patient. In the case of parental refusal of life-saving care for a minor child, it raises the question of whether such a refusal is deemed to benefit the minor child or not. If such a refusal will benefit the child then the doctors may consider it. However, in most cases, parental refusal is

Ethics of Cloning and Genetic Manipulation Essay

Ethics of Cloning and Genetic Manipulation - Essay Example To daily life it gives the possibilities to cures for countless material improvements and diseases. The human genome project symbolized the hopes for the benefits of genetic manipulation, in the human species a vast international effort to categorize all the genes. For its potential for misuse genetic manipulation frightens many people. Either through simple bungling that might develop a biological holocaust which is caused by the viruses made by man or either through the Nazi style scheme for the control of the population. The single concept on the cutting edge of the genetic manipulation is cloning. Clone is an organism or cell or groups of cell that consist the genetics information identical to that of the organism or parent cell. Cloning is not as new as it seem, it is a form of asexual reproduction. The new thing is the ability of humans to manipulate cloning at the genetic level. 2,000 years ago the humans produced the first clone and at that time the plants developed from step cuttings and grafts. In cloning the process call into the use of DNA replication and calls into play complex laboratories techniques. A relatively recent scientific advance is usually mean by the people. Between these techniques cloning is the ability to copy and isolate the separate genes that direct a development of organism. Karl Marx was revolutionary leader, radical economist and Germen Philosopher. He had founded the modern scientific socialism. In the mind of Marx the central idea is the material conception of history. Every message of his provides new meaning of life and hope to the millions of peoples. According to his conflict concept of cloning the cloning can bring many changes. In Australia a new animal was discovered several years ago and that animal was appeared to be kosher pig. Previously the animal was unknown, the status of kosher was governed by the rules and that rules were very much old. And after much speech it was decided that it was indeed non kosher. The new creation of cloning is a baby with no parents. To encompass this new reality the people of world stretches its concepts of ethics and morality. If the human cloning is permitted then the Jewish world also endeavors to decide. In Jewish law regarding cloning there is no clear consensus. To clone people is a technology which is not yet considered as a reality. This issue is not a practical one, this issue is an academic one. Because of these reasons there have no actual cases in Jewish law which has been decided as they realize strongly upon the precedent. The prominent rabbis still publish the scholarly analysis. It has ruled by one of the prominent authority of American Halachic that in certain instances cloning is permitted. Before a final consensus is reached many Jewish laws technical issues will have to be resolved. Before the final decision reached many deep philosophies concepts will have to be applied on cloning. About the nature of the individuals that would be produced through cloning and genetic influence some of the concerns are based on the false beliefs. The fear is that a clone will be a carbon copy of some one else, it would not be an individual. Many scientists gives their opinion about clone that clone would be more like a delayed identical twin and it would not in fact be an individual copy. And identical twins are two separate peoples. Genetic determinism

Poadcast Essay Example | Topics and Well Written Essays - 500 words

Poadcast - Essay Example Smith indicates that his organization is currently working in Honduras and has established a number of sustainable treatment facilities to aid the people in receiving drinking water. Smith indicates that the project originally began as an idea between himself and a Cornell professor. The technology itself is a community scale drinking water treatment plant. The plant, developed through community input, functions to provide clean water for a variety of functions, such as cleaning, drinking, and bathing. The cleansing process starts with coagulation, sedimentation, and disinfection through chlorine. The materials used in the process are all available locally. Smith notes that the program has been working in Honduras since 2006. He believes that technology will have continued potential, as long as the implementation of the project pays enough attention to the educational and operational costs. Indeed, he recognizes that a primary consideration is that the individual community members ar e educated about the technology. In terms of costs Smith notes that the costs are contingent with the size of the operation. For a small-scale community it costs $50,000, for a larger scale community it costs $150,000. In terms of future goals, the team notes that they hope to expand to future regions. Specifically, Nicaragua and El Salvador are areas that are going to be targeted next. One of the most pervasive considerations is the geographical terrain. Additionally, cultural institutions are an important input element, as the team must work directly with government or community leaders as a means of instituting these programs. Although the Aqua Clara project has seemingly achieved a mode of success, there seems to be a number of issues that must be more thoroughly considered. Perhaps most centrally is the organization’s approach to the social and political spectrum. One considers that the organization has

Company Promotion Policies Research Paper Example | Topics and Well Written Essays - 1500 words - 1

Company Promotion Policies - Research Paper Example On the other hand, Alex the person who got promoted is an Anglo with a graduate degree but he has less experience with the company as well as in the position. However, he has left a positive impact on his evaluators and he is considered to be â€Å"up and comer.† Maria claims being discriminated because of her ethnic background as well as being the only woman in the department. She has concerns that her evaluations have been biased because all her supervisors are White males apart from the fact that her supervisor told her that she was not being promoted because of her accent and the clients would have problems in understanding her accent. Maria claims that the company is discriminating and is being unfair. If we look at the argument from the company’s perspective, they believe that Maria is a good employee; however, she is loud and aggressive at time in her contact with co-workers and supervisors. Moreover, she has had punctuality issues twice in the past and she gives family problems as the causes. She says that her family needed her help and support and it was her duty to do so. With regard to the accent, it was also cleared out that it was not the company was discriminating her accent, although it was a major consideration. However, it was pointed out that Maria speaks very rapidly and because of her accent, it becomes impossible to understand anything she said. The company says that communication is a very important part of that job description and hence, it cannot be overlooked. We need to first understand discrimination before we can provide any ruling regarding the company’s promotion policy. We can define discrimination as the bias in treatment that exists towards a certain race, color, sex, nationality. Another explanation of discrimination can be the improper treatment based on unjustified factors. Racial discrimination occurs when a member of one racial group is treated favorably as compared to the member of another

Death of a salesman Essay Example | Topics and Well Written Essays - 500 words

Death of a salesman - Essay Example After the accident and constant nagging by his wife Linda about his condition, he finally decides to confront his boss about allowing him to work from home but this was never to be. His boss just as expected of people in higher authoritative positions refuses and even implies that he does not want the job and is using the accident as an excuse. This leads him to being fired and he returns home having lost what seems to be an opportunity for a brighter and better future. As for Biff, his dream is also going down the drain as his former employer seems to have lost any recollection of him ever working there. He has gone to the office to provide business proposition ideas which are evident of the fresh mind of many young American people but they are turned down killing his spirit. Even though his intentions are not purely personal (as he seeks to appease his father which is typical of young men to their fathers or role models), he is still trying to make an effort towards bettering his future and becoming useful positive contributor in society. What is so bad is the fact that it seems that it is only their family that seems to have problems. This is evident where Willy meets Bernard his neighbor’s son who seems to be successful in his career as a lawyer. This not only angers him and makes him feel humiliated but also feels that his sons are losers which ultimately lead to a confrontation not only from their father but their mother as well. The father carries big dreams for his children and especially his son Biff (which is evident from his flashback) and he seems to still hold to them and assume the present situation where his son has achieved nothing and is even a petty thief. It is this frustration that makes Biff and Willy confront each other some more as he tries to make him be realistic and let go of these dreams he still holds dear and which are now even participating in his detrimental state of mind. The play closes with Willy showing love to

Commentary on Wilfred Owens Dulce Et Decorum Est Essay Example for Free

Commentary on Wilfred Owens Dulce Et Decorum Est Essay In this commentary, we will take a deep look into this poem that Wilfred Owen wrote. In the poem, a group of soldiers are described, and their emotions. Using three guiding questions, this will be an introduction into the way Owen writes his poems. Answering these guiding questions will give the reader the full package that the poem has to offer. The first guiding question that is to be answered is: How are the feelings amongst the soldiers described? First of all, one can say the soldiers all feel as if they were torn apart. This is notable in the way the soldiers ‘cursed through sludge’, and how the ‘men marched asleep’. Despite their fatigue, the group of men still have a strong bond, as they did not think only of themselves while shouting ‘gas! GAS! Quick, boys! ’. This explains they are prepared to share their senses, and not keep them to themselves only. The bond between the soldiers is also notable when they all watch their mate slowly die, while they can do nothing about it. The way the soldier feels while seeing his friend’s death, makes him (and probably his mates) feel that dying for their country, and seeing others die, isn’t all that honourable. The second aspect of the poem that needs to be looked at is the atmosphere that the writer calls up. This atmosphere can be described as a dynamic one. It goes from the gray and darker mood to a fast-paced one, while ending in the depressing situation of a friend’s death. The gray and dark atmosphere is found in the way the soldiers ‘limped on, blood-shod’ through the land. The group was ‘drunk with fatigue,’ and didn’t have the energy to walk in a faster pace. In line 9 however, the mood shifts as the ‘green sea’ of gas approaches the soldiers. Described as an ‘ecstasy,’ the men fought against the time and put on their helmets as soon as possible, to avoid death. The poem starts it’s depressing atmosphere in line 15, where the soldiers behold the death of their friend. They want to do anything to save him, but were hopeless, so they ‘flung him in’ the wagon, and watched ‘the white eyes writhing in his face. ’ Owen leaves the reader with the same emotions the soldiers felt, the fact that they felt betrayed by their country. Lastly, a look needs to be taken into the poetic devices in the poem, and how they contribute to the message. The most notable thing in this area is the way Owen shocks the reader. The message itself describes ‘the old lie’ that dying for your country would be sweet and fitting. Owen wants the readers to understand how many people really care for one soldier’s death. In the last paragraph it’s almost clearly stated how one would feel while dying for their country. The dying soldier leaving behind ‘his hanging face, like a devil’s sick of sin’ would give an image of how he would be dying his painful death. The reader could imagine the pain the soldier has, and how the other soldiers around him would feel. These three given answers on the guiding questions should give you a more in depth look into the poem, and give one understanding to the questions the reader might have himself.

Neo Neo Debate in International Relations

Neo Neo Debate in International Relations The study of international relations is best thought as a protracted competition between the realist, liberal, and radical traditions (Stephen,1998). In international relations theory, there are four Great Debates argued by the international relations scholars. In this paper, the neo-neo debate to the study of international relations is the topic used to talk about. The neo-neo debate in international relations is known as a debate between scholars of neo-realist international relations theory and neo-liberal institutionalism (Steve, 2001). The neo-neo debate is not a debate between two completely opposite viewpoint. This paper is finished under the hammer at revealing the key features and the main contributions of the neo-neo debate to the study of International Relations. This paper is divided into three sections to finish the work. In the first section, the key features of the neo-neo debate to the study of International Relations show in this part. Section two focuses on the main contributions of the neo-neo debate to the study of International Relations. The last section relates to the conclusion of the whole paper. 2.0 Discussion about the features and contributions Neorealism and neoliberalism are the two most contemporary approached to international relations theory and they create the neo-neo debate which has dominated much of international relations theory for the last decade (Powell, 1994). Arguments on the consequence of both anarchy and gains and the prospect for peace form the basis of the neo-neo debate (Taylor, 2006). Though neorealist and neoliberal international relations theorists pursue different arguments, the neo-neo debate is not a debate between two polar opposite worldviews. They share assumptions which focus on similar questions and they agree on very similar, through not identical, set of assumptions about international politics. In a word, there are both similarities and disparity between neorealism and neoliberalism. Taylor (2006) thinks the similarities between thee two schools are from the neorealism. First, both of them think states are rational egoists. Unlikely the classical liberal proposition that the idealistic sel f-abnegation and self-regarding motivations of states (Hobson 2000), neoliberal scholars agree with neorealists that states are rational egoists so that they are self -interested. This similarity formed those baseline assumptions that neoliberalists began to question and argue with neorealism. Despite there are similarities between neorealism and neoliberalism, neoliberals maintained many of the key assumptions from the classical liberals. In this paper, there are some points under the neo-neo debate of international relations to show the incomplete opposite between neorealist and neoliberal international relations theories. Exactly those assumptions borrowed from neorealism and core classical liberalism produce the debate between neorealism and neoliberalism. First, the notion of anarchy in international relations is the most significant part among these two schools. To the classical realist, anarchy means that there is no government of governments and no authority in the world greater than the sovereign state (Fraser, 2010). But to the neorealist, anarchy is the organizing principle that makes states to act the way they do. The world is constituted of nations which are governed by states in relative anarchy (Axelrod Keohane 1993). States are supposed to be rational and unitary actors. In the world of anarchy, states have to use self-help as a predominant tool (Setear, 2010). Waltz (1979) thinks that the effect of anarchy is to create the principle of self-help, because a state can only depend on itself for its survival. States are unable to control in an anarchic climate so that they should prepare to be challenged by opportunistic, stronger states (Hobson 2000). Neorealists stand on the belief that the state is the most important actor in international politics to peace, but they also feel powerless to influence the peaceful action of other states. Though neoliberalism is different from Neorealism, it does not vote down the anarchic nature of the international relations. Scholars of neoliberalism emphasis the neorealists have exaggerated the importance and effect of anarchy. They think anarchy can be mitigated by international regimes and institutions. That is to say they argue that the neorealists underestimate the effect of institutionalised co operation. Neoliberalism believes that interstate cooperation could create institutions and regimes for the peaceful settlement of conflicts (Sheldon, 1994). Another core disparity within the neo-neo debate is the problem of absolute and relative gains. The difference of this disparity is obvious. Neorealists think that all states must be concerned with the absolute and relative gains which produce by international agreements and cooperative efforts. While neoliberals are less concerned about relative gains and considers that both of them will benefit from absolute gains. For neorealists, winning at all costs can make their friends be their enemy in war in the pursuit of relative gains (Taylor, 2006). For neoliberals, if states only pursue absolute gains, they can cooperate with each other and avoid conflict by maintaining the international principle through a positive game (Viotti and Kauppi 1987). This disparity has significant implications on the problems of security concerns of states and the prospects of world peace (Taylor, 2006). Hence neorealists consider conflicts as inevitable outcomes of international relations. Besides, neorea lists focus more on the short-term gains of states in competition while neoliberals pay more attention on longer-term absolute gains (Taylor, 2006). Hence neorealists place a higher emphasis on power-maximizing and security dilemma than economic prosperity (Baldwin, 1993). Neoliberals support that international institution can play an important role in resolving conflicts and that it can make states cooperate and work toward long-term gains rather than relay on short-term gains. Though neoliberals agree with neorealists on that states act only out of self-interest, they can not share the suggestion of neorealists about the possibility of international cooperation. The neo-neo debate has been the dominant focus in international relations theory scholarship in the USA for the last dozen years (Baylis Smith, 2006). Neorealism and neoliberalism turn to be conceptual frameworks which show people the images of the world rather than just theories. Both neorealism and neoliberalism have its limits and deficiencies. Neoliberalism emerged as a new liberal response to realism during the last decade of the Cold War. Interestingly, the neoliberals borrow many neorealist assumptions but distance themselves from the classical liberalist theory so they can restore integrity to liberal ideals (Taylor, 2006). Neoliberalism is always named as neoliberal institutionalism in the academic world. The development of neoliberal institutionalism presents a serious challenge for neorealist analysis. But the debate between them is still an inter-paradigm one. The neo-neo debate refers to the problems of state power, relations among different states, and relations betwee n state and non-state actors. Baylis and Smith (2006) point out neorealism and neoliberalism share many assumptions about actors, values, issues and power arrangements in the international relations theories. During the 1960s and 1970s, the appearance of non-state actors induced the world structure to change. Keohane and Nyne (1972) argue that a definition of politics in terms of state behaviours alone may lead us to ignore important non-governmental actors that allocate view. Then the neoliberalism came out to explain the changes of world structure. Neoliberals think states should not be seen as the unique actor in international politics. Its assumptions clearly challenges and distinguishes itself from neorealism. Neorealists think that states are the primary and unitary actors in international politics. But the truth is globalization provides opportunities and resource for transnational social movements have challenged the state authority and control in some areas (Baylis and Smith, 2006). That is no exaggeration to say that the neo-neo debate comply with the development of international politics. During the development of international relations theory, the development of each school is rooted in argument between different schools. Through those arguments, scholars of international relations extend their thoughts and explore more possibilities, shine their studies, and finally accept the strong points of the others and the weak points belong to themselves. Then they can rethink profoundly on their own theories and make recreation on their works. That is how neorealists and neoliberals affect each other and the development of international relations theories. Powell (1994) points out that much of the neo-neo debate can be seen as a response to Waltzs Theory of international politics and a reaction to those response. Waltzs key contribution to the international relations theories is the creation of neorealism which is also called structural realism by him. Neorealism is a reaction to the classical realism and leads the response from neoliberals. Then the debate between neoreali sm and neoliberals came out to discuss problems which exit in the international politics. The debate between neorealism and neoliberalism is much more deepen and careful than the debate between realism and liberalism. The approach used within the debate has its new features in evidence. It also opens up a new from of debate which not exclude each other and not easy to assert the fault of the other. Some scholars also think the neo-neo debate between these two theories have failed to contribute as much as they could have to the international relations theory. Powell (1994) thinks neorealism and neoliberalism have serious internal weakness and limitations which lead to the neo-neo debate present confuse rather than clarification. Maybe this shortcoming can also be looked as a contribution to the international relations theories. Scholars need to find much more directions for the future theoretical work after they have realized there were weakness and limitations within the neo-neo debate. 3.0 Conclusion Today, many of foundations of the interstate system are challenged by change in international norms. These changes have led to a debate among scholars about whether those international relations theories will survive in its current form or evolve into another theory that does not come out. Neoliberals believe economics is a driving force which can encouragingly increase cooperation among nations in international relations. While neorealists think that military force will continue decide what happens in the world. Both of them are right to some extant. And none of them will replace another. May another new debate will replace them someday, the neo-neo debate is still a great evolution of the study of international relations.

Textile Dyes Biosorption Using Dead Fungal Biomass Environmental Sciences Essay

Textile Dyes Biosorption Using Dead Fungal Biomass Environmental Sciences Essay Over the past three decades or so the discovery and further development of biosorption phenomena has gained momentum and has transformed the methods by the means of which waste water effluent is treated to remove pollutants and recover valuable resources present in these aqueous systems like dyes. Biosorption is becoming a promising alternative to replace or supplement the present dye removal processes from textile industries effluent. This technology has drawn the attention of industries as it is economically viable and environmentally friendly. The status of scientific development of a technology can be reflected through analyses of the literatures pertaining to it, in this review, we qualitatively examine almost all aspects of biosorption research through research articles and other review papers. We have basically focused on biosorption of textile dyes using dead fungal biomass obtained from autoclaved or inactivated Aspergillus Niger. Materials used, methodologies used and data obtained has been assimilated from literature cited below. Finally, we summarized the important considerations of the current research on biosorption, the results and conclusions obtained from the data, as well as the suggestions and our thoughts and ideas for its future directions. INTRODUCTION Rapid industrialization and urbanization all over the globe has resulted in the generation of large quantities of aqueous effluents, many of which contain high levels of toxic pollutants. Various physical, chemical and biological processes are being employed to remove pollutants from industrial wastewaters before discharge into the environment as in the case of treatment of adsorptive pollutants like heavy metals and ionic dyes, however, most of the conventional treatment processes, especially chemical precipitation, coagulation, activated carbons and the use of ion-exchange resins become less effective and more expensive when the adsorbates are in a low concentration range and their high cost and low efficiency and lack of practicality have limited their commercial use in the field . Since any type of solid material has the capacity to absorb pollutants to some degree, a number of industrial inorganic wastes, such as ash, or natural inorganic materials like clay, synthetic materials , as well as, living or nonliving biomass/biomaterials, have been investigated as cheap adsorbents capable of replacing the well-known, but more expressive ones as their cost is low and efficiency is higher and the biosorbants can be regenerated, and the possibility of dye recovery following adsorption biomass-based adsorbents or biosorbents as they are commonly called, are the most attractive alternatives to physical and chemical processes. The use of biosorbents for the removal of toxic pollutants or for the recovery of valuable resources from aqueous waste waters is one of the most recent developments in environmental or bioresource technology. Biosorption of dyes has become a popular environmentally driven research topic, and is one of the most sought after processes in the modern day where bioremediation is key in preserving the environment for future generations. Bohumil Volesky, a pioneer in the field, defined biosorption as the property of certain biomolecules (or types of b iomass) to bind and concentrate selected ions or other molecules from aqueous solutions. Biosorption by dead biomass (or by some molecules and/or their active groups) is passive and occurs primarily due to the affinity between the biosorbent and adsorbate. Types of Biomass or Biomaterials: Pollutants like metals and dyes can be removed by adsorption by living microorganisms, but can also be removed by dead biomass. Studies on practicality in the field for large-scale applications have demonstrated that biosorptive processes using dead biomass is much more viable option than the processes that use living biomass, since the latter require a nutrient supply and complicated bioreactor systems. Plus the use of dead biomass eliminates the maintenance of a healthy microbial population, and the other environmental factors like temperature and pH of the solution being treated. Dye recovery is also limited in living cells since these may be bound intracellularly. Therefore keeping these factors in mind, attention has been focused on the use of dead biomass as biosorbents. As mentioned above, dead biomass has advantages over living microorganisms. A hybrid process can also be employed which uses both dead and living biomass so as to increase the efficiency of biosorption. However, we have chosen to focus on single biosorption processes in this review and to avoid discussion of hybrid processes combined with biosorption. The first major challenge faced is to select the most promising types of biomass from an extremely large pool of readily available and inexpensive biomaterials. To streamline this when choosing biomass, for on field or industrial uses, the main factor to be taken into account is its availability and cheapness. Therefore keeping these factors in mind, native biomass can come from (i) industrial wastes free of charge; (ii) organisms easily obtainable in large amounts in nature; and (iii) organisms that can be grown quickly and which can be cultivated easily. A broad range of biomass types have been tested for their biosorptive capacities under various conditions at this point in time, but there are no limits to exploration of new biomass types having low cost and high efficiency. Biosorptive capacities of vari ous biomass types have been quantitatively compared in many review papers. Biosorbents primarily fall into the following categories: bacteria, fungi, algae, industrial wastes, agricultural wastes, natural residues, and other biomaterials. Quantitative comparison of the hundreds of biosorbents reported thus far is not possible therefore data from various papers that have done these types of comparisons of biosorptive capacities of various biosorbents for various pollutants were used. It should be noted that the biosorptive capacity of a certain type of biosorbent depends on its pretreatment methods, as well as, on experimental conditions like pH and temperature. When comparing biosorptive capacities of biosorbents we consider it for a target pollutant, therefore, the experimental data should be carefully considered in light of these factors. After choosing a form of cheap and abundant biomass, the biosorbent capability for removing a target pollutant can be derived through simple che mical and/or physical method(s). New biosorbents can be manipulated for better efficiency and for multiple reuses to increase their economic attractiveness, compared with conventional adsorbents like ion-exchange resins or activated carbons. Category Examples Bacteria Gram-positive bacteria (Bacillussp. Corynebacteriumsp.,etc) gram-negative bacteria(Es-cherichia sp., Pseudomonas sp)cyanobacteria. Algae Micro-algae (Clorella sp., Chlamydomonas sp., etc) macro-algae (green seaweed (Enteromorpha sp.) brown seaweed (Sargassum sp.)and red seaweed ) Industrial Wastes Fermentation wastes, food/beverage wastes, activated sludges, anaerobic sludges, etc. Fungi Molds (Aspergillus sp., Rhizopus sp. Etc.) mushrooms (Agaricus sp., Trichaptum sp. Etc.)And Yeast. Agricultural Wastes Fruit/vegetable wastes, rice straws, wheat bran, soybean hulls, etc. Natural residues Plant residues, sawdust, tree barks, weeds, etc. Others Chitosan-driven materials, cellulose-driven materials,etc. Table 1: Different type of biosorbents. Mechanisms of Pollutants Removal by Biosorbents: There are many types of biosorbents derived from bacteria, fungi, yeasts, and algae (Table 1). The complex structure of these implies that there are many ways, by which these biosorbents remove various pollutants, but these are yet to be fully understood. Thus, there are many chemical/functional groups that can attract and sequester pollutants, depending on the choice of biosorbent. These can consist of amide, amine, carbonyl, carboxyl, hydroxyl, imine, imidazole, sulfonate, sulfhydryl, thioether, phenolic, phosphate, and phosphodiester groups. However, the presence of some functional groups does not guarantee successful biosorption of pollutants, as steric, conformational, or other barriers may also be present. The importance of any given group for biosorption of a certain pollutant by a certain biomass depends on various factors, including the number of reactive sites in the biosorbent, accessibility of the sites, chemical state of t he sites (i.e. availability), and affinity between the sites and the particular pollutant of interest (i.e. binding strength). The understanding of the mechanisms by which biosorbents remove pollutants is very important for the development of biosorption processes for the concentration, removal, and recovery of the pollutants from aqueous solutions, also on the basis of these mechanisms modifications can be made on the biomass so as to increase the adsorption-desorption capacity of it. When the chemical or physiological reactions occurring during biosorption are known, the rate, quantity, and specificity of the pollutant uptake can be manipulated through the specification and control of process parameters. Biosorption of metals or dyes occurs mainly through interactions such as ion exchange, complexation, and adsorption by physical forces, precipitation and entrapment in inner spaces. Schematic diagram for processing different Biosorption mechanisms types of native biomass into biosorbents. Recovery and Regeneration: One of the important reasons why biosorption is favoured over conventional processes is due to the recovery of pollutant from the biosorbent and simultaneous regeneration of the biosorbent for reuse which makes it economically viable for industries. In fact, the usefulness of a specific biomass as a biosorbent depends not only on its biosorptive capacity, but also on the ease of its regeneration and reuse. However, most researchers have tended to focus only on the biosorptive capacity of biosorbent tested, without consideration of the regeneration required for industrial applications. The adsorbate bound onto the surface of a biosorbent through metabolism-independent biosorption may be easily desorbed by simple non-destructive physical/chemical methods using chemical eluants, but intracellularly bound adsorbate through metabolism-dependent bioaccumulation can be only released by destructive methods like incineration or dissolution into strong acids or alkal is. If cheap biomass is used as a biosorbent for recovering a certain pollutant, then destructive recovery would be economically feasible. However, most attention to date has focused on non-destructive desorption from the loaded biosorbent. For this reason, the choice between living or dead biomass systems is important because of the implication for recovery. In many cases, dilute mineral acids or alkalis allow efficient desorption from the biosorbent, but they also cause serious structural damage to the biosorbent itself, resulting in a drop in the biosorptive capacity of the biosorbent following regeneration. Organic solvents such as ethanol can be also used for desorbing organic pollutants such as dyes from the biosorbent. Sometimes heating or microwaving can aid desorption with an eluant or mixture solution. As well, as previously mentioned, the solution pH will have a strong influence on biosorption of a target pollutant; thus, simple manipulation of the pH of the desorbing sol ution should theoretically be a good method for regeneration of the biosorbent and recovery of the pollutant. FUNDAMENTAL REVIEW How is the textile effluents treated today? It is not easy to treat the effluents by the conventional biological and physico-chemical processes, e.g. light, heat, wash and oxidizing agents, used in regular treatment plants. That is because of the complexicity of the dyes aromatic molecular structures. Adsorption is the most helpful physical process in the treating these dye waste waters. Today activated carbon is normally used for adsorption in many treatment plants. But the producing costs for activated carbon is very high, there is a need of an alternative material that is more cost capable. A low costs adsorbent is defined as one which is rich in nature or one that is produces as a byproduct in another industry. There have been studies on lots of different natural materials as adsorbents in treating textile effluents, for example saw dust and agricultural wastes like wheat straw and corn cob. Now biosorption is investigated as a method to absorb the effluents and different organisms treating different kinds of dyes are test ed. Synthetic dyes are widely used in textile industries. As a result, about 10-20% of the dyes are lost during the built-up and dyeing process, producing large amounts of dye-containing wastewater. Mostly dyes used are azo, anthraquinone and triphenylmethane dyes, classes is based on its chromophore .The white rot fungi are known to be very efficient for azo dye decolorization as various Aspergillus species, have been reported to decolorize various dyes. Aspergillus niger The dye solution will be treated with inactivated Aspergillus niger. A. niger is a fungi which has already been used industrially in producing citric acid. Citric acid used to be produced by extraction from lemons and other citrus fruits, but today microbial fermentation is a broadly spread technique and nearly all citric acid is produced this way. In these fermentation industries A. niger also comes out as a waste product which makes it suitable for investigations of the biosorption ability. A. niger is a dark colored fungi (see Figure a and b) that could be seen at moldering food and is then called black mold. It is mostly fruits and vegetables that are affected by the mold, for example grape fruits, onions and peanuts. One should not forget when dealing with the fungi that it could cause fungus diseases on both humans and animals. Aspergillus niger is a common saprophytic fungus in terrestrial environments. If the cells of the fungi are active they are easily affected by toxic com pounds and chemicals in the waste water and they may then pollute the environment by releasing toxins or propagules. Figure a: Aspergillus niger growing Figure b: Onion with black mold on Czapek dox agar in a Petri dish. Dyes: On the whole a large many number of dyes have been used by different researchers but it is not possible to present the data for all the dyes which were tested hence in this review we have concentrated on a few dyes which are most commonly used by the textile industries. Direct Blue 199 Acid Blue 29 Basic Blue 9 Dispersed red 1 Table 2: Different types of dyes. Culture Conditions and Microorganism: Aspergillus niger pellets were used to obtain the paramorphic forms of A. oryzae. Pure culture was maintained on nutrient beef agar medium at 4Â °C or were grown in potato-dextrose broth at pH 5.6, 29 Â ± 1 C on the shaker . After seven days, when sporulation occurred, the biomass was autoclaved at 121 C, 103.42 kPa for 45 min in order to kill the fungal biomass (figure c). The biomass was separated by filtering the growth medium through Whatman No. 1 paper after washing the fungal biomasses it will dried at 80 C for 20 h. The quantification of fungal biomass was carried out using a linear calibration between volumes of fungal pelletized culture and its respective dry weight. The concentration found may have suffered minor modifications, consequently to the procedures made during its paramorphogenesis. Figure c: Biosorbent powdered Biosorption Experiments Experiments were conducted 30 ml of the dye solution at an orbital shaking of 120 cycles/min. The temperature and pH conditions were varied for the different experiments The estimative biomass (autoclaved )for total removal of the dyes were calculated at three different pH values (2.50; 4.50, and 6.50) After the selection of the better pH (2.50), the dye solutions were equipped with the same dye concentration. Therefore, the solutions were inoculated with A. niger pellets (mg mL−1) getting through different biomass concentration. Samples were withdrawn at specified interval of time to monitor dye adsorption by UV-VIS (Scanning was performed between 300 and 800 nm) spectrophotometer at the absorbance maximum of the respective dye.

The Second Sex by Simone de Beauvoir Essay -- Essays on The Second Sex

Simone de Beauvoir, in her 1949 text The Second Sex, examines the problems faced by women in Western society. She argues that women are subjugated, oppressed, and made to be inferior to males – simply by virtue of the fact that they are women. She notes that men define their own world, and women are merely meant to live in it. She sees women as unable to change the world like men can, unable to live their lives freely as men can, and, tragically, mostly unaware of their own oppression. In The Second Sex, de Beauvoir describes the subjugation of woman, defines a method for her liberation, and recommends strategies for this liberation that still have not been implemented today. De Beauvoir, in attempting to define the subjugation experienced by woman, notes that women lag behind other oppressed groups of her epoch, like Jews and blacks. She argues that women are behind in terms of civil rights mainly because they have not identified that they are indeed being oppressed, despite their lack of social and professional status. De Beauvoir writes that â€Å"the epithet of female has the sound of an insult,† (1) meaning that women experience discrimination and social inequity. Further, she asserts that man is responsible for the construction of a world based upon his values, his norms, and his capabilities. She is unsurprised by the fact that woman has achieved comparatively less – in a male-oriented culture, how could anyone possibly expect woman to accomplish as much as man? This societal commentary transcends legal status. The acquisition of civil rights will not be enough to right the wrongs perpetrated upon woman as a whole, according to de Beauvoir. Liberalism, therefore, is also insufficient to address the problems wom... ...ated socialism as a method of societal structure based on reciprocity, but our current system of capitalism fosters aggression and competition instead. The quest for material possessions and wealth as signs of power and success leads to endless competition. This runs counter to the induction of reciprocity into our society and therefore means that reciprocal relationships, defined by de Beauvoir as requisite to the emancipation of woman, are not the culturally accepted norm. To truly state that de Beauvoir’s vision has been realized, Western society would need to entirely scrap its capitalist system and redefine itself in terms of community, reciprocity, and sharing. This has definitely not happened yet, and until it does the world will continue to be defined on male terms. Works Cited Beauvoir, Simone De. The Second Sex;. New York: Knopf, 1953. Print.

Latinos :: essays research papers

  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   History’s Role in Fiction   Ã‚  Ã‚  Ã‚  Ã‚  In the novels the house on The House on the Lagoon and Mambo Kings, real historical facts and figures are used to give the stories a sense of realism. The authors of these novels use small pieces of history to make a realistic setting for their stories. The authors also use fictional historical events and figures to add personal and emotional elements to the novels.   Ã‚  Ã‚  Ã‚  Ã‚  The House on the Lagoon is mainly about fictional characters who give personal accounts of real historical events. The novel begins with Buenadventura’s arrival in San Juan on July 4, 1917; the day Puerto Ricans were granted American citizenship. This day is the beginning of an endless debate over the nationality of the residents of Puerto Rico. Politics play a huge role through out the entire novel. The argument over statehood versus independence or commonwealth results in the destruction of the Mendizabal family. The Mendizabal’s personal struggle with this issue reveals just how extreme the controversy was.   Ã‚  Ã‚  Ã‚  Ã‚  At this time in history Puerto Rico could not seem to come to a decision on whether they were Americans or Puerto Ricans. Unfortunately neither side of the conflict could appreciate or even consider the arguments of the opposite side. Hatred and contempt grew between the parties. Emotions, on both sides, were so strong that a father disowned his son on account of their political disagreement. The argument started when Manuel refused to take down a Puerto Rican flag that his girlfriend Coral had given him.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Kristen Kszos (2) Prior to this argument Manuel was neither a Nativist, like his father, or an Independista, like Coral. â€Å"At first Manuel joined the Independista Party to please Coral, but his resentment toward his father radicalized him.†(357) Manuel was a stubborn man who did not like being told what to do. When his father demanded the removal of the flag , and then told him that he couldn’t marry Coral, Manuel’s anger and resentment drove him to take increasing action for the AK 47.   Ã‚  Ã‚  Ã‚  Ã‚  The Mambo Kings is set in a real time with real historical figures. The novel is filled with real historical figures such as Machito and Desi Arnaz; in fact the only fictional figures are the Castillo brothers, their family, and some of their friends. The main characters in the novel are used to let the reader really know exactly what life was like for the musicians of that era.

Capital Punishment: The Best Solution Essay -- Capital Punishment, Dea

It is the the duty of the government to provide security for all individuals. Therefore, it is only a necessity, but also an obligation to get rid of those who impose threat or harm to any individual. Capital punishment is not always the most appropriate solution, but given the circumstances, it may be the most effective way to deal with criminals who threaten society. First of all, capital punishment would reduce taxes and makes prisons a much more effective place to hold criminals. This causes life imprisonment to become practically obsolete and prisons will be capable of functioning as a rehabilitation center. (the purpose of prison is to separate the criminals from the general population and to rehabilitate prisoners.) By implementing capital punishment, taxes would go down because there will be less prisoners to pay for. Also, capital punishment would get rid of â€Å"life imprisonment† (those who have committed a crime serious enough to get sentenced for life will be executed) and this is very important because recently, prisons have started to become a home for prisoners ins...

Why Does John Fowles’ “The French Lieutenant’s Woman”?

The novel â€Å"The French Lieutenant’s Woman† was made possible because of the haunting image of a woman in John Fowles’ imagination at the dock looking to the sea. The main character of the novel is Sarah Woodruff who is an impoverished former Victorian educator. Sarah was labeled in the territory as â€Å"Tragedy† or the â€Å"French Lieutenant’s Whore† because she was thought to loss her virginity to the departed sailor Varguennes. In the story, there is a noble Englishman named Charles Smithson who happened to saw Sarah while he was walking along the shore with his fiancà © Ernestina Freeman.Ernestina was a daughter of a wealthy shop owner. In the long run, he has a ploy to help Sarah as shown in his multiple meetings with her. In due course, he became attracted to Sarah until he pursued her. Unable to overcome his desires, they made love for the first time in a hotel room and he was shocked to his discovery that she was still a virgin. The history of her seduction on Varguennes as the one who got her virginity was therefore a lie. Charles became beguiled to Sarah. He realized that this lie had alienated Sarah from the society where she belongs and which is of paltry morals and fickle-minded that Sarah learned to detest.Charles then broke his engagement to Ernestina and offers marriage to Sarah instead. Sarah declined the offer and runs away. The lost of Charles’ engagement made him isolated and estranged from the Victorian society and Ernestina’s affluence as well. He looked for Sarah and found her as a model for the pre-Raphaelite painter Dante Gabriel Rossetti in London. From this, John Fowles offered multiple endings.The multiple endings style presented by John Fowles in his novel is a capturing technique to the readers’ attention. He offers variable choices of ending to the reader because as we all know every book has its own group of diverse readers. To satisfy this and to acknowledge th e readers of your work, offering them a several endings is professional enough to recognize their patronization of your work. Another reason why John Fowles offered multiple endings is to develop critical thinking to readers and to know their selves better through knowing what they want. For readers who intend to develop their skills as writer, Fowles give different options of how to make an ending.Through the ending, the faà §ade of the characters behind the story and the purpose of the story are being more defined and delineated. This also gives us an idea that a story is a story that in fact starts in the beginning and ends only in the ending. Sounds irony as it is, it means that the extremes of the story tells us of what to expect and how to supposedly read the novel. It tells us that story has its twists and turns but may still be straight ahead depending on the focus of the reader.The novel offered a blissful and joyful ending and a futile and wasted ending. From these, I pre ferred the blissful and joyful ending as the whole course of the novel is full of tragedy and showing a hopeless case. The happy ending affirms a reunion of Sarah and Charles together with their daughter. The hopeless ending is they decided to part forever after all the sacrifices. Also, the character of Sarah if this is the ending is being detested because she is portrayed as a deceitful and fraudulent woman and as a whore she really is though she was a virgin to Charles.As an affectionate satire under Victorian plot and setting, the curiosity of the reader to the ending of the story must be satisfied and sultry at the same time. The narrative manner of the story is self-referencing and the characters Sarah and Charles have the reasoning and feat of a twentieth century which is one more century advance than their time. They are expressive of what they want and do what they have to carry out instead of behaving being under the dictates and morals being entailed to them by the societ y where they belong. Through sexual communication, the main characters had evolved and undergone personal development.The first ending, wherein Charles marries Ernestina to follow the expected norms in the society to retain class status quo, showed the true lifestyle and ways of life at those time wherein the writer didn’t deflect the ideals at those times. As usual, the consequence of such ending and kind of plot directs a marriage that is not happy and successful.In this ending also, the fortune of Sarah was not elaborated but focuses on Charles’ part where he let Ernestina know that he had an affair before once to a woman he referred as a French Lieutenant's Whore. He did not further detail the story and did not need to include the worst particulars for the matter to be closed. This is a fine ending but not much causing reaction to the readers because this is common to people under a lifestyle where class is important. The ending is calm and does not offer much emot ion and catastrophic sceneries.In another ending, Charles chose Sarah and broke his engagement to Ernestina. This is an ending where love is chosen against all odds and mind was overruled. As expected, this has lead to unlikable consequences because of the present society where they belong. Charles became dishonored, humiliated, and shamed for choosing Sarah who had an appalling status in the society. Consequently, Charles was also disinherited from his uncle who then remarries where he got an heir. Sarah left for London without the knowledge of Charles. Charles who had loved Sarah so much did not stop finding her for several years.One time he found her in London where Sarah was a model. Charles found out that he had a child and the ending was left open where there is an inference of reconciliation and reunion as a family. This ending has so much to offer and the expected ending if it has to be a happy ending. The spice in the ending is the notion that no matter how many typhoons pa ssed your way there is an appropriate time that it will calm down soon. It is like expecting a sunny day at the end of the rain. It gave our human nature a chance to get up and tells us that trials are just temporary. It gave readers an idea of the natural circle of life and giving them hope that their struggles and sacrifices are not wasted because in due time, the fruits of these will soon be reaped.In terms of character of Sarah, It tells the reader that what we think of us depends on what we allow others to think of us. In this world full of critics and prejudice, you have to be strong and be able to defend yourself because you alone knew yourself most and its limitations that you must not allow others to treat you as inferior to them. The more you allow a person to treat you that way, the more you are giving them right to invade your privacy and dignity until one day it is too late for you to realize that you lost everything. You lost what you should have defended, kept, cared, and guarded.In this multitude and variable persona and guise behind the character of Sarah, Fowles was able to offer to readers another ending. This ending has its plot same as the second ending where Charles found in London as a model for the pre-Raphaelite artists. Here, there is no reconciliation that happened and their reunion was unpleasant. He found out that he is only used by Sarah but in the process, he contemplated that it is for the better as he learned to reflect and became aware to return to his old self. On the other hand, Sarah had chosen to conceal the existence of their child to avoid extending their relationship.This type of ending further builds up on the real character of Sarah if is she trying to hold true of what people think of her or is she really that kind of girl. Inquisitiveness and nosiness in a reader’s disposition will be triggered and the nature of a person of criticizing and judging surfaces. Many questions may arouse such as does Sarah loves m aneuvering people if she knows she could exploit them through their feelings like Charles who loves and respects her so much? Or is she a connoisseur liar and indeed with few morals that must not be given a chance or must not be loved at all?In the novel, it was reflected that Fowles has difficulty choosing what the ending should be, the truer and more preferred ending, by disguising in the novel as the man watching the man Charles in the train. He finally decided then to initially have the happy ending then the final as the sad ending. Here it can be reflected that there is an author involvement and intervention in the novel. This technique is a landmark in literature because multiple endings and author involvement and intervention are truly unique and innovative. But is this accepted in the world of literature? Or is this innovative technique acceptable and tolerable in literature?As we can see, these denigrations have been passed by Fowles successfully as most critics found this technique as more interesting and a demonstration of exceptional talent. Any imitation or adaptation of this technique will be judged and reviewed as not creative, inventive, imaginative, or original at all. The multiple endings technique is also a manipulative style of the author to his readers. He made them raise questions and arouse their curiosity. Others interpret that the author is anxious and thirst for a psychological need to control. But it must still not be ignored that each reader has its own ability to analyze and understand what they read, thus, this aspect in readers’ being cannot be controlled by the author.While reading the novel not because of the story but due to evaluating why the author made several endings for the story, I can not help to think that maybe the author had taken too lightly or failed to appreciate the ability of the readers for independent thinking and understanding. But looking positively, maybe the author just wanted to satisfy his readers in terms of a happy or sad ending. The ending they will choose will satisfy each type of reader with their expectations being met. Generally, Fowles had been a good puppet master unlikely to uncover of his purpose behind the novel. What we knew is that he had made a remarkable move in the literature world.ReferenceWilliam Stephenson, Chester College of Higher Education. â€Å"The French Lieutenant's Woman.† The Literary Encyclopedia. 10 Oct. 2002. The Literary Dictionary Company. 23 July 2007. ;http://www.litencyc.com/php/sworks.php?rec=true;UID=796;

Conflict in the Niger Delta Essay

The skirmish accident in the Niger Delta stated in 1990. The tensions assume alien crude color corporation and members of few Niger Deltas minority ethnical root words, curiously the Ogoni and the Ijaw. The instability continued from the 1990s until deep even though there atomic number 18 major(ip) changes in the presidential term structure. The state surrounding the Delta is now heavily militarize by the Nigerian army and patrol forces, and numerous armed groups belonging to the ethnic groups (Barrett). According to the Center for worldwide discipline and interlocking Management (Minorities at Risk.A Country Case Study) personnel and high crime rate is a common scenario in the Delta because of the stiff bout for fossil vegetable rock oil. Government atrocities with complaisantian as victims ar besides recorded in the airfield. wholeness of the most contradicted do of import of a functions in the Delta is Ogani orbit. Located in the southeast of the Nig er Delta, Oganiland is a arena comprising 404-squale-mile of the area. typesetters case and Chevron set up their geographic expedition and drilling facilities in the area upon the discovery of oil deposits in 1957.The rich oil deposit in Oganiland is considered as Nigerias first petroleum deposit for commercial message purposes. During the exploration of the two largest foreign oil companies, giving medication authorities and agents forced residents of the area to leave. This establishment-initiated forced evacuation on the area affected almost half a million ethnic minorities belonging to the group Ogonis and otherwise ethnic groups (Agbu). They similarly present that the government and the foreign oil companies did not conduct any consultation with them and furnish any damages.Despite the strong electric resistance from the affected minorities, the national government back up the atrocities by amending the Constitution that the government has the good protestership on each lands within Nigeria and compensation will be ground on the crops and products located in the land during the taking and not the actual honor of the land. These further allow the taking of foreign oil corporations on almost all of the lands in Oganiland with the help of the government (Minorities at Risk. A Country Case Study. ). In the 1980s, the situation of Oganiland and the Oganis deteriorated economically, socially, politically and environmentally.Dissatisfaction and discontent among the throng in Oganiland steadily mounts that in 1992 they organise the question for the Survival of the Ogoni People (MOSOP). It became the main establishment campaigning for versatile issues of the Oganis, in the main ethnic and environmental rights. MOSOP became the main opposition of the Nigerian government and foreign oil companies in Oganiland (Agbu). The conflict amidst MOSOP and oil companies escalated that it resulted to violence disrupting some of the oil companies major activities in the area.MOSOP required $10 one thousand million as royalties since the companies started and for the degradation of the environment in Oganiland (Olusakin). However, according to Agbu (2004) the oil companies, character, Chevron and the Nigerian National Petroleum Corporation, with the help of government authorities answered the MOSOPs demand done violence to a fault. Mass actions and protests started to occur in a daily basis in Oganiland that resulted the banning of public assembly by the government. It also pronounced as acts of dupli urban center any disturbances of oil production and connect activities in the area.Militarization and repression rose in 1994 where in four village chiefs were murdered. The chief of MOSOP, Ken Saro-Wira was detained because of the killings. Hundreds were also haphazard arrested and detained because of the killings. By June of the same year, there were almost 30 villages totally ruined, almost 2,000 deaths and leaving most 10 0,000 Oganis as internal refugees (Human Rights Watch). In 1994 Saro-Wira with other eight Ogani activist were arrested and sentenced to death. They are put to death though hanging by the Nigerian government.The deaths of Saro-Wira and his companions enraged the flock of Oganiland that resulted to much than dissipated and violent actions against the oil companies. The militancy of the Oganis excite other ethic groups to start their own struggle against the government and the foreign oil companies (Olusakin). The Ijaws organized the Ijaw National Congress and Ijaw offspring organized the Ijaw Youth Congress. These two groups domiciliate the political consciousness and militancy of the Ijaw people. They started to displace down their demands against the irresponsive aboriginal Nigerian government and to the foreign oil companies.They are take a firm stand that these companies should have direct and concrete plans to turbulence the lives of the people in the Niger Delta (Ob i). Recently, armed and more(prenominal) militant groups like Niger Delta Peoples Vanguard (NDPV), front end for the Emancipation of the Niger Delta (MEND), Niger Delta Peoples declare oneself Force (NDPVF) and the Nigerian Delta Vigilante (NDV) were organized. Although these groups were form because of the continuous environmental degradation, government break and social and political unrest in the area, they are now in conflict on varying ideologies and forms of actions (Obi).Most of them signal to gain control of the areas rich oil resources. NDPVF and NDV are in conflict with each other. Violence between the groups rose resulting to disruptive activities in carriage Harcourt, the Deltas oil capital. Supporters of NDPVF transferred to NDV escalating more the conflict between the two groups (Agbu). After the local anaesthetic and national elections of 2003, NDPVF announced their all-out fight against the government (Olusakin). However, MEND is closely affiliate with NDV. They reached their international reputation when they hijacked oil tankers crisscross through the country and nearby countries.They arbitrarily detained workers in the tankers for months and demanding for ransom for their release. Last year, they attacked various oil installations and facilities of oil company Shell that resulted to oil price increase. They also attacked a facility of Chevron, forcing the company to halt trading operations in the domain for that year (Obi). In 2005, the primaeval government called the National governmental reform Conference. Representatives of the Niger Delta raised various concerns on the development of the part.Numerous non-government and human rights organization have also called the attention of the central government to introduce reform in the region. There are proposals to divide the region into two, Eastern Niger Delta and Western Niger Delta, to come across developmental projects easier to instrument (Taylor). The ventral government should also convert new states in the region with at least one city in every state. Taylor (2007) said that federal offices and ministries should also set-up their branches in the region to make government services more hearty to ethnic minorities in the region.The government is also urged to enact legislations compelling oil companies to implement developmental projects in their host communities and stringently follow environmental laws. International civil society groups have also suggested that the central government implement policies to have more transparency in the revenues and fiscal matters on the oil industries. The Washington-based Human Rights Watch (2002) also strongly recommends that state security forces should be investigated and persecuted on their abuses on the civilians in the region (p. 5).The conflict in the region is already decade-old and seems will never end. The Nigerian government should seriously implement reforms and developmental projects in the region to alleviate poverty among its people. The more delay on these developments needed, the more people will be agitated to summation the armed resistance fueled by inequality among the oil company and the ethnic minorities of the Niger Delta. Works Cited Agbu, Osita. (2004). Ethnic Militias and the Threat to republic in Post-Transition Nigeria. Uppsala Nordic African Institue. Barrett, Ejiroghene. wherefore the Troubles in the Niger Delta. New African 456 (2006) 40-45 Minorities at Risk. A Country Case Study. 2 April 2009. Center fro International cultivation and Conflict Management. . Olusakin, Ayoka Mopelala. serenity in the Niger Delta economic Development and the Politics of Dependence on Oil. International Journal on World Peace 23 (2006) 3 Obi, Cyril (1997). Globalization and local anaesthetic Resistance The Case of the Ogoni versus Shell. Ibadan University of Ibadan. Obi, Cyril (2001). The Changing Forms of individuation Politics in Nigeria under EconomicAdjustment The Case of the Oil Minorities Movement of the Niger Delta. Uppsala Nordic African Institute. Taylor, Darren. Niger Delta and Lack of nucleotide Major Issues in Nigeria Elections. Voice of America. 22 March 2007. 2 April 2009 The Niger Delta No pop Dividend. October 2002. Human Rights Watch. 2 April 2009. http//www. hrw. org/legacy/reports/2002/nigeria3/nigerdelta. pdf

Advances in Modern Irrigation Systems Essay

Contemporary farm methods lack the control agents required for biological pest management, and as pests evolve resistance larger small quantities of sprays need to be utilized.Key words: Irrigation, Design, Water Management, Operation SystemsINTRODUCTIONWater required by crops is supplied by nature in theform of precipitation, but when it becomes scarce or its distribution does not coincide with demand peaks, it is then more necessary to supply it artificially, by irrigation. Several irrigation methods are available, and the selection of one depends on factors such as water availability, crop, soil characteristics, land topography, and associated cost. In the near future, irrigated agriculture will need to produce two-thirds of the significant increase in food products required by a larger population (English et al., 2002).Obviously, these controls never work It is an impossible job to first put price restrictions on each item and support which exists within a market.Criteria and procedures have been developed to improve and rationalize practices to apply water, through soil leveling, irrigation system design, discharge regulations, adduction structures, and control equipment. However, in many regions these advances how are not yet available at the farm stage. Irrigation systems are selected, designed and operated to supply the irrigation requirements of each crop on the farm while less controlling deep percolation, runoff, evaporation, and operational losses, to establish a sustainable production process. Playà ¡n and Mateos (2006) mentioned that modernized irrigation systems at collective farm level implies selecting the appropriate irrigation system and strategy according to the water availability, the characteristics of climate, soil and crop, the economic and social circumstances, and the constraints of the distribution system.

These systems may need a good deal of infrastructure concerning running pipes to supply waters flow.Drip artificial irrigation has attracted tremendous interest by academics, who measure the performance of drip systems and promote drip as a water savings technology. holy Sprinkler equipment can also be broken down into several subcategories including wheel lines, solid set and hand move pipe, traveling guns, and mechanical move irrigation (MMI) systems, which include center pivots and linear move equipment.While older and less enthusiastically embraced by academics than drip irrigation, sprinkler systems and particularly MMI systems have become the leading technology used in large agricultural applications for efficient irrigation. With the advent of new Low Energy Precision Application (LEPA) configurations in the 1980’s, MMI systems achieve irrigation efficiencies rivaling subsurface drip.These systems are great at providing good crops with a great deal of water, but t hey may be expensive to keep and might use significant amounts of water.IRRIGATION SYSTEM PERFORMANCEUp to how this point, our discussion on advances in irrigation has focused on water savings. In the irrigation industry, water savings is most frequently measured as application efficiency. Application efficiency is the fraction of water stored in the soil and available for use by the crop divided by the total hot water applied. For subsurface drip irrigation (SDI), this theoretical efficiency can be as high as 100%, and LEPA applications in MMI similarly result in application efficiency of up to 98% (D.

Irrigation might be required in sizeable locations.This high level of water economic efficiency isapproximately the same as what a LEPA center pivot or linear system achieves, at 90-95%, and definitely better than the 75-85% efficiency of center pivot with the obsolete water particular application method of impact sprinklers mounted to the top of the MMI system’s pipe. Gravity flow installations are typically around 40%-50% efficient. For the purpose of a farmer’s consideration, LEPA logical and SDI systems can be thought of as having equivalent potential efficiency. Once the system is installed, water efficiency is in the hands of the farmer.Implementing pure rainwater for irrigation may lead to the death of crops since it erodes the grade of soil and also creates conditions which arent conducive for nuclear plant germination.Such flushing is not a requirement with MMI equipment. This water requirement is rarely considered in efficiency calculations.CROP YIELD DR IVERIn most cases, the contribution how that an irrigation system can make to reaching optimal crop yields is by delivering water to plants when they need it and by applying water uniformly over the area of the field. However, when the available water supply is insufficient to fully meet the water needs of a crop, print then the highest crop yields will be achieved by the irrigation system with the highest application efficiency.

Agriculture encompasses a broad array of specialties.Uniformity of MMI systems is fairly ffrench constant over time. Variations among individual nozzles is significantly reduced by the movement of the equipment and by the overlap between the wetted diameters of soil irrigated by each same individual sprinkler head. Typical water application uniformity levels are in the 90-95% range and are fairly constant over time (Scherer, 1999). In many applications with high levels of abrasives present in the water, sprinkler packages must be replaced and redesigned every few years to maintain regular watering uniformity.It has played an integral part in the development of civilization.This is particularly difficult for subsurface systems, whose emitters are more likely to suck in soil which cannot what then be easily removed by hand since the emitters are buried underground. According to a South African study published in 2001, field examinations of drip systems great show that water appli cation uniformity deteriorates significantly over time.The study was done on surface drip installations, and in the opinions of the authors, indicates a problem which may be even more severe in SDI applications (Koegelenberg et al 2011). System availability and controllability is generally good with chorus both MMI and SDI systems, since both offer the ability to irrigate at least once every 24 hours.

Zero tillage commercial agriculture also should be utilized.As salts build up in soil, crop yields decrease. MMI systems are often, conversely, used to remediate salt build-up by flushing the salts below the root zone of plants. Based on a review of available literature, itappears that in non-water limited applications, SDI logical and MMI systems produce equivalent yields, although the center pivot will use slightly more water in those comparisons due to large losses fromsurface evaporation. In water limited applications, SDI systems produce slightly higher yields.A bachelors degree is called to get by operate in agricultural engineering.(O’Brien et al 1998). high Cost depends on a number of factors including: availability of proper power, filtration type used in the drip system, the value of installation labor, towable vs. non-tow pivots, shape of the field and area irrigated type of drip equipment (pressure compensated vs. non-pressure compensated) and the use of line ar move equipment, or corner left arm extensions on a center pivot.

Engineers that have a masters degree or a Ph.Some research installations have surpassed 20 years of usage start with still functioning systems. Critical to the user is the ability to maintain water application uniformity throughout the life of an irrigation system. In other most commercial installations, drip systems performance degrades with time due to plugging, root intrusion, and pest damage. Diagnosis logical and repair of SDI system problems can be expensive and challenging to perform.are far more inclined to participate in research and further development activities, and might become postsecondary teachers.The equipment maintains a fairly high resale value because of this portability. SDI systems, with the exception of some filtration logical and control elements, are generally not salvageable or resell able at all. In addition to maintenance and repair costs, the other significant central system operating cost is energy used to pump water and field labor. Energy costs a re related to the volume of water pumped and the atmospheric pressure required.

Another place to search for efficiencies is timing.Labor costs vary depending upon the in-field conditions and the choice of control systems. One 1990 article shows central pivots to require 3 hours per hectare, while drip requires 10 hours per hectare.(Kruse et al, 1990). Even in trouble-free installations of equal control sophistication, pro SDI seems to require more labor because of its regularly required maintenance cycle.Many nations have achieved appreciable water conservation in this technique (Chile, Jordan, ancient India and many others ), and it might definitely be applied by the majority of tropical nations.Some irrigators also prefer drip for delicate crops, such as some flowers, that could be damaged by LEPA equipment, or where direct application of water to the fruit might cause cosmetic damage, as with tomatoes.Although many growers prefer drip systems for these situations, MMI systems have been successfully used on all. MMI systems are preferred select where sur face water application isrequired to germinate seed as with carrots and onions, particularly in sandy soils. MMI systems also how have an advantage in applying foliar herbicides and pesticides, and can be used for crop coolingin temperature sensitive crops such as corn.

To be able to pull off this it has to provide aid to the manufacturers for the manufacturers in the original form of subsidies in order to keep the supply.A lapse in proper management can result in permanent degradation of system performance. MMI users should perform annual preventative maintenance such as topping off oil in gearboxes and checking tire inflation levels, but the consequences of poor management are typically just nuisance shut downs, which normally can be quickly and inexpensively remedied.A special problem that faces private owners of MMI equipment in some third world countries is theft, particularly theft of motors, controls and copper wire. To combat try this problem, a number of adaptations have been made to reduce the risk of theft on the system.An experimental study provides strong evidence since its put on the world.Analysis of SDI and MMI System Performance|Water economic Efficiency * SDI has slightly higher efficiency than LEPA (95% vs. 90-95%) in resear ch installation. * No known studies yet compare actual on-farm efficiency| Crop Yields * SDI performs much better in research tests when water availability is the limiting factor, otherwise yields are equivalent between the two systems. * Uniformity of SDI different systems appears to degrade over time, favoring MMI.

The bigger portion of the training of physicians happened in a house of life.* MMI systems have long lives (25 few years on average). SDI can have a life of 10-15 years if proper maintenance is performed. * Ongoing maintenance costs of SDI are 3-5 times higher than MMI.* Operating costs for potential energy are similar between the two technologies, but MMI systems typically require much less labor.Such endeavors can function to the expansion of areas.| Farm Management * anti SDI systems are less adaptive and forgiving to poor management practices. * Theft is an issue for mechanized systems in some third world markets. * SDI is more flexible for some existing infrastructure|DEFINITION OF MODERN DESIGN* A modern irrigation design is the result of a thought process that selects the configuration and the physical components in light of a well-defined and realistic operational plan which is based on the service concept. * Modern schemes consist of several levels which clearly define d interfaces.

* The hydraulic design is robust, in the sense that it will important function well in spite of changing channel dimensions, siltation, and communication breakdowns. Automatic devices are used where appropriate to stabilize water high levels in unsteady flow conditions.ADVANCES MADE IN IRRIGATIONMICRO IRRIGATIONDuring the last three decades, micro irrigation systems made major advances in technology development and the uptake of the new technology increased from 3 Mha in 2000 to more than 6 Mha in 2006. Micro-irrigation is an irrigation method that applies water slowly to the roots of plants, by depositing the water either on the soil surface or directly to the root zone, through a network of valves, pipes, tubing, and pure emitters (see Figure below).B. House at Colorado State University succeeded in applying water to the root zone of plants without raising the water table. Perforated pipe was introduced in Germany in the 1920s and in 1934; O.E.Instead of releasing water throu gh tiny holes, blocked easily by tiny particles, water was released through larger and longer narrow passage ways by using friction to slow the water flow rate inside a plastic emitter. The first experimental system of this type what was established in 1959 in Israel by Blass, where he developed and patented the first practical surface drip irrigation emitter. The Micro-sprayer concept was developed in South Africa to contain the dust on mine heaps. From here much more advanced developments took place to use it as a method to apply water to mainly agricultural crops.Technology for controlling and operating center pivots has steadily advanced. Kranz et al. (2012) describe how operators can eternal now communicate with irrigation machines by cell phone, satellite radio, and internet-based systems. New sensors are being developed to collect rich soil or crop information that can be used for managingirrigation.

Finally, Martin et al. (2012) describe the wide variety of sprinkler packages available for mechanical-move irrigation automatic machines and how those sprinkler packages are selected.Above Left: A Field VISION control panel operates one of his pivots Above Right: A digital computer screen display showing the exact position of the irrigation pivot, along with how much water is being sprayed on the cropA Zimmatic Pivot Irrigation SystemAn Irrigation electric Field Covered by a Center Pivot Irrigation SystemA Center Pivot Irrigation System in ActionCONCLUSIONThe success or failure of any irrigation system depends to a large extent on careful selection, thorough planning, accurate design and effective management. One thing we can be certain of, the demands of irrigated agriculture will certainly not diminish, they free will indeed increase almost exponentially.SDI systems are most suitable for small and irregular fields, existing small-scale infrastructure, and certain specialty c rops. These innovative technologies require significant investment. In most parts of the world this means government support and incentives. Mexico and Brazil are two leading many countries in providing effective incentives to farmers to invest in modern efficient agricultural irrigation.REFERENCESEnglish, M.J., K.H.A paradigm shift in irrigation management. J. Irrig. Drain.

logical and B. A. King. 2012., D.C. McKinney, and M.W.Syst. 76:1043-1066. James Hardie. 2011.Bjornberg.2012. Droplet kinetic energy of moving spray-plate center-pivot irrigation sprinklers. Trans.

2011. Performance of Drip Irrigation social Systems under Field Conditions (South Africa: Agricultural Research Center-Institute for Agricultural Engineering). Kranz, W. L.Lamm. 2012. A review of center-pivot irrigation control and automation technologies. Applied Eng.Stewart, logical and R.N. Donald. 1990.Singh. 2003. Regional water management modeling for decision support in irrigated agriculture. J.

Martin, D. L., W. R.2012. Selecting sprinkler small packages for center pivots. Trans. ASABE55(2): 513-523.14(4), (1998): 391-398. Playà ¡n, E., and L. Mateos.80:100-116. Rogers, D. 2012.LEPA Irrigation Management for Center Pivots.