Water Purification In The Coming Decades Environmental Sciences Essay

Water Purification In The Coming Decades Environmental Sciences EssayThis phrase was written by six academicians related to a lean for The Center of Advanced Materials for the Purification of Water with Systems (NSF STC WaterCAMPWS, University of Illinois, USA). They ar working for various departments which argon satisfactory for this research at different universities. The WaterCAMPWS works for new technologies for pee manipulation. (1)This article focuses on recent technology for disinfection, decontamination, re-use and desalination regularitys to improve weewee quality. It describes the importance of body of water and water problems, to a greater extentover it gives info about the water treatment systems apply today and will be used in the future. It also makes comparisons to identify the advantages and the disadvantages of water treatment systems. It is suitable for anyone who wants to be informed about water purification techniques. A person who has the technical i nfrastructure about water and water treatment can understand more easily this article. While reading sometimes difficulties may be encountered to understand this article but in general wording of the article was clear.At the first part of the article authors mention the importance of the water, pollutants water problem and new water treatment technologies. Water problem is explained all the way by using remarkable numbers but they do not give the date and sources about numbers. In addition to the situation at the article, create and developing countries atomic number 18 provided the examples of the water situations to make the water problem more understandable.Water is needed for living organisms to survive and in that respect is life on the humans thanks to water.(2) According to the World wellness Organisation (WHO) water may contain bacteria, suspended particles, parasites, viruses, organic chemicals, heavy metals and solvents above the allowed amount for example, Escherich ia coli and arsenic train limit is should be less than 10 g/l (WHO report, 2008) (2-3) The elimination of unwanted materials, chemicals, contaminants, impurities, micro-organisms is called water purification which is a cleaning process. (4) Clean water imply is rising day by day because of increasing in population, water shortage and users competition. (5) If people accessed clean potable water easily, it would be a all told positive effect on health. Unfortunately, WHO report in 2007 shows that 1.1 billion people cannot reach the clean water and 1.8 million people die dehydration from diarrheic because of safe water problem each year. Hearth problems, brain stokes, HIV/AIDS, acute respiratory diseases, chronic lung diseases are some health problems which are caused by diarrheal.(3) The recent water treatment activities are not safe, sustainable and sufficient enough but they can be develop such as brawn efficient systems, renewable purification.(2) New coevals water treatment systems, which are based on such as disinfection, flocculation, sedimentation and decontamination technologies, should be developed to train bacterial, viral and parasitic pathogens more effectively.(9)At the beginning of 4000 B.C. people tried to make drinking water better in taste and smell. nigh treatment modes were developed such as sand filtration, disinfection by sun light-headed and boiling after 1500 B.C. (9) At 1600s desalination experiments began and around 1800s the first water purification plant was built in Scotland. During the 20th century, people focused on drinking water quality especially removing the pathogens. In 1914 The U.S. Public Health Service prepared standards about drinking water and which were revised by the Public Health Service in 1925, 1946 and 1962. (9-3)Disinfection is the process of the deactivating or destroying of pathogenic microorganisms parade in water. (10) In the paper, extensive information about disinfection methods and the comparison between disinfectants were written. Authors give information about how the disinfection processes can control the viruses but I recover this is unnecessary detail about the subject. Using sunlight (solar) was the first application of disinfection. (10) The most common disinfection methods are free chlorine and chlorine related chemicals because of exist and easy accessibility, they eliminate the living materials by oxidation of cell wall compounds. Free chlorine (Cl2) is so effective method but chlorine is a very dangerous chemical and it produces virulent disinfection by-product DBPs for example trihalomethanes. (11) The method of using solid calcium hypochlorite (Ca(ClO)2.4H2O 65% chlorine) as a disinfectant has a lot of limitations such as corrosion and taste problems. Another disinfectant is sodium hypochlorite (NaClO) solution (5-15% chlorine) which cannot be stored easily. (11) Viruses, yeast, spores, bacteria, and molds can be killed by ozone disinfection method. Ozonatio n method is more effective than chlorine method and it does not produce any danger by-products. (10) There are some disadvantages of this method for example, it is not easy technology, low dosages are not enough to kill pathogens and it is personifyly. (11) Ultraviolet light (UV) can be used for inactivating pathogens by photochemical reactions in the RNA and DNA which is the result of light absorption. (10) It is effectively and for this method the contact time is short, there are not toxic or non-toxic by-products but it cannot use water which includes suspended material. The new method is use chlorine with UV and ozone which is very effective method to eliminate bacteria, protozoa cysts and some vital pathogens. The solar photocatalysis disinfection which means killing of pathogens by using the photocatalysis of TiO2 is the future method for water disinfection.(12) The use of nanoscale science in the water treatment systems, which includes nanocatalysts, nanostructure tissue lay ers, bioactive nanoparticles, nanoparticles filtration, nanosorbants, is the futuristic disinfection method. Nanoparticles which have large surface areas will be the beat out materials for water purification systems in the near term. Today, the major challenges of nanomaterials are the integration of water purification process, cost effective and design problems. (5)In the article another(prenominal) method is described called, the water decontamination which is the process of eliminating the harmful substances (chemicals, organisms, heavy metals, radioactive materials) from the water. In this section of article, authors try to explain some problems about measuring and sensing of compounds concentrations, modelling, and remediation strategies. Reverse osmosis, synthetic resins, activated carbon, sand filtration are the some methods to remove contaminants from the water.(13) The best treatment method which supplies the most purified water is not clear. The object of contaminant ty pe and concentration are as important as the decontamination technology. The advanced laboratory technology is necessary for measuring of low concentration of toxic compound for example Hydride Generation Atomic Absorption Spectrophometery and UV-Spectrophometry can be used to analyse arsenic. (13) Chromatography and mass spectroscopy which have the drawbacks such as cost, esthesia and efficient are the old but the most common technologies. Catalytic DNA is the recent system for testing heavy metals in the water and the conventional methods for this are X-Ray Fluorescence, some chemical tests and Inductively Coupled Plasma.(13) The biosensoring technology is defined as the usage nanoscale or microscale biological sensors to detect contaminants with high sensitivity. The technological ripening about biosensors is necessary to determine the toxicity of water treatment process.(14)Highly treated water can be called reclaim water which is the low cost alternative of potable water. I f we consider the amount of consumed water per day, remained water on the Earth and the growing of population, the reuse of reclaimed water is absolutely necessary. Some of the uses of reclaimed water are irrigation, industrial activities and groundwater recharge.(15) Since historical times wastewater has been used but it became attractive two or three decades ago. (16) There are several(prenominal) methods for reclaimed water, such as chlorination, filtration and biological systems which have been used since early 1800s. (15) Authors give information about some recent methods such as membrane bioreactors and filtration. For the biological treatment ultrafiltration and microfiltration technologies have been understood to provide high quality purified water. (17) Today activated sludge process, which is another biological treatment method, are knowing for high performance. (18) The membrane bioreactor (MBR) method is relatively new treatment technology which is based on liquid-soli d separation and its applications are becoming acceptable day by day for small scale with high quality of water. (17-18) Membrane bioreactor process has some advantages compared to the activated sludge process such as more conjure reactor, smaller footprint for high concentration, higher mixed liquor suspended solids concentration (for MBR process average concentration 8-12 g/l). The most important drawback of MBR method is some terms such as flow issues should be developed. (18) The cleaning of membrane and dynamic effects such as aeration redness, saline intrusion and backflush loss are the two parameters which affects the performance of MBR technology. The improvements about material characteristics, permanent fouling, cost and membrane cleaning process should be done for this process. The average annual growth rate 10.9 % is estimated for the global MBR market. (19) Reverse osmosis (RO) is a liquid membrane method which removes dissolved materials. The combination of MBR and R O is highly efficient which provides 67% water recycling at the lowest cost. (20)Desalination is a method that separates the salt from water. The oldest process to remove salt from water is boiling. Thermal distillation method and natural the hydrologic cycle work same way and in the early 1900s, membrane system was developed. There are three types of thermal methods namely multi-stage flash distillation, multi-effect distillation and vapour crunch distillation. (21) The advantages of desalination by distillation are low operating and maintenance cost, minimal environmental effect and the highly purified water turnout, the disadvantages are high take knowledge and large capacity plants.(22) Electrodialysis, Electrodialysis reversal and reverse osmosis are the three main membrane processes for desalination. (21) Simple systematic structure, removing organic and inorganic contaminants and high production/capacity ratio are the advantages on the other hand the necessity of pre-treat ment step, the difficulty of cleaning membrane and decreasing in flow rate are the drawbacks of membrane processes. (22) Total number of desalination plant is nearly 1400 (80% Membrane desalination, 20% Thermal desalination). Reverse osmosis desalination process includes four parts pre-treatment, aggressive pumps, membrane systems and post-treatment. (21) Hybrid desalination method can be defined as the comparison of thermal and membrane desalination process which generates power. The advantages of this process are using less button, low cost of construction and high plant efficiency. Nowadays the RO and simple hybrid multistage flash configuration are very popular. The advantages of co-ordinated systems are good thermal efficiency and high quality purified water. (23) The Affordable Desalination Collaboration process is newly design of reverse osmosis process which demonstrates the water with a good design. (21) Carbon nanotubes have the specific electrical, chemical and mechani cal features. In the future, nanotubes will allow us to desalinate cheaply but there are some challenges, we have to face about this method like capital cost and difficult mechanism. Carbon nanotubes, Biomimetic membranes and forward osmosis are next generation systems for desalination. (8-21) In this section of the article the figure about reverse osmosis and activate desalination (figure 5) makes understandable the processes. The information in the book related to entropy and energy calculation is the high-level information about the subject.This article contains extensive knowledge about the water treatment systems. Authors clearly conclude solutions of water treatment systems. I have some knowledge about water purification before preparing this report but while writing I learned lots of information about new water treatment techniques from article and references. This research was made in 2008, it is a technological subject because of this when research is carried out is very im portant. Some current water treatment techniques need intensive energy and chemicals. We should improve the not only water treatment systems but also monitoring, measuring, modelling and management systems to deliver safe and clean water to everybody. As a result, we need new, sustainable, environmental and inexpensive purification methods.Science and technology for water purification in the coming decades by M.A. Shannon, P.W. Bohn, M. Elimelech, J.G. Giorgiadis, B.J. Marinas, A.M. Hayes, Nature 452 (2008) 301-310

Social Work Analysis

Social Work AnalysisMy backdrop is a small rural church building of England Voluntary Controlled primary school with approximately 75 churlren and approximately 12 teaching staff including the head and teaching assistants. The staff work, on a dowry and safe time basis. There be 3 mixed ability and mixed age classes. Class 1 consists of reception, twelvemonth 1 and half of course of study 2 electric s accommodaterren. It is interesting to note that the half of year 2 children be all boys. Class 2 is the other half of year 2, year 3 and half of year 4, again mainly boys. Class 3 consists of the rest of year 4, 5 and 6. This is an old village school with modern additions. There are two separate play areas including hard surface and grass areas and play equipment.In 2009 pedagogy league tables my setting was in the top third. The setting performed to a lower place national average in 2008 for year 6 Standard Attainment Tests (SATS) however in 2009 we were slightly above the n ational average. In 2009 30.8% of year 6 children were identified as having special asks, from a class of 13. (bbc.co.uk. Accessed 22 Id April 2010) In the last OFSTED report 2007 the setting achieved an overall score of 2- Good. The major feeder for the setting is the local pre-school.I view my protest role in the setting is to enable and support each child. It is of key importance that I, as it is for all practitioners to I view my own role in the setting is to enable and support each child. It is key importance that I, as it is for all practitioners to identify any need of a child be it physical or emotional or in way affects the holistic well being of the child.All early years staff are committed to putting children first the welfare of the child is paramount (Children Act 1989). (Hobart and Frankel 2003123)All barriers to a childs growth and support chances must(prenominal) be addressed. If a child has a need that whitethorn not be in full met by the practitioners alone w ithin the setting the lead practitioner must be informed to alert and call in the squad of outside agencies to meet with the parents and practitioners in the setting to provide the best service to meet the involve of that child. This is in line with the governings dream of integrated front-line delivery of services to improve future outcomes of children and their families.(It is crucial for practitioners to act as facilitators. To meet the take of a child the role of a practitioner is to first identify the need and if necessary share the knowledge with other specialists and other outside agencies to aid the process of get out outcomes for that child. Individual Learning intentions and Common Assessment Forms are useful tools for collaborative running(a). colloquy is the key to executing strategies and building positive working relationships. It is a decisive role of my practice to develop and maintain relations to the other organisations. Relationships develop and change over time. It is through critical animadversion and analysis that practitioners can ring and improve their practice.There are many different ways that the Setting communicates with the different groups. There are different levels of formality and speed required. For example in a child safeguarding situation, urgent action may need to be interpreted. Action could be initiated by a means of a telephone call followed by written statements. Other forms of communication include minuted meetings, for example parents and a Local Educational Authority and practitioner meet to discuss an Action Plan for an individual child. Written reports form the core of an Individual Learning Plan for a child with additional needs. Other reports include OFSTED Action Plans agreed with the capitulum Practitioner and the Governors.For example member A of the Behavioural Support Team called a meeting with the Head Practitioner and the two named Practitioner supporting a child with challenging behaviour. The reason for the meeting was to discuss the nubiveness of the latest action plan that they had created for a child in class 1.The Head Practitioner had sure the plan of new strategies but had not shared the information with the other practitioners therefore the new methods of dealing with certain behaviour had not been employ due to the lack of communication mingled with members at the Setting.On reflection of this critical incident, I wonder why the childs parents were had not invited to the meeting to share their views on how best to support their child in the Setting. This is an example of top-down management. In my role as an Early Years Works I need full access to the information necessary for individually supporting each child otherwise both Child Matters forget not work.The power is approximately decidedly with the specialist to instruct the setting to carry out a plan of action with different support mechanisms. This is as a direct outgrowth for organisation inc lusion policy, but the practitioner cannot implement the plan if the setting does not bring in an open or transparent communication policy. It is probably a weakness in management skills and a lack of democratic leadership skills that the lead practitioner does not share information. Alternatively this could be as a result of an overloading of responsibilities on one Head Practitioner. Thirdly the Head Practitioner may not trust the confidentiality of the staff.In his book, The Reflective Practitioner, Donald Schon talks about the benefits of reflection. (infed.org Last Accessed sixteenth April 2010) This allows practitioners to explore the interactive processes which nominate impact on practice and outcomes of children, their families and their community. through and through reflection practitioners may gauge the effectiveness of action taken at the Setting. Through reflection practitioners may focus and think about their own values and beliefs.Reflection is an alpha tool to ev aluate and improve ones practice. The process allows a deeper understand of the impact of practice on a childs development. Knowledge gained from the whole procedure should shape practice and the sharing of information and experiences with other practitioner will impose issues for discussion which will ultimately benefit both practitioners and children. This method should lead to improved practice and greater understanding of issues in the setting.I have critically reflected on improving the communication links between the practitioner and behavioral unit. One way round this, could be for the behavioural team to witness sufficiently confident to send the information directly to the Early Years Practitioner who is working directly with the child. There may be an issue of power or steading. Possibly the behavioral team perceive themselves as professional elite and recognise the Head Practitioner as equal in professional officeAnother member of the behavioural support team, older , wiser and more experienced, took a different approach regarding the same child.Met with behavioural support worker B regarding child perhaps on the Autistic Spectrum. He asked for feedback on the childs behaviour and well being. He specifically asked if the child was happy and engaging with the other children. He asked my opinion on what I thought would be the best strategy in supporting learning as he said you have built up a relationship with the child and he understood that I worked closely with the child on a day to day basis. (Reflective Journal November 2009)On reflection the practitioners including myself, would have been in a better position to comment if more information had been made available to me, in preparation to the meeting. I would like to have been fully informed and kept up to date with the latest information as I was one of the named persons for that child. This made the meeting a waste of time as I was unable to comment on how the child had responded to the n ew board and methods as I had not created the new teaching resources. The Head Practitioner had received the previous report and recommendation from the behavioural unit but this information was not shared with any of the other practitioners. Consequently no action had been taken by the practitioners supporting the child. (Reflective Journal October 2009)My ability to reflect on failures and successes in the use of different communication styles between professionals will enable me to ask for information in order to do my job. So reflection is an important process which aids professional development and practice. The aim is to include and enable all children use specific plans for inclusion. A practitioner professional duty is to use critical thinking and critical action as a tool to improve life chances and promote a healthy quality of life for individual children. This will bring the regimen activity policy of Every Child Matters into reality within my Setting.The Government re cognises the crucial role of parents, carers and families in improving outcomes for children and young people and the need to provide support for parents, carers and families in order for them to do so. The Government overly recognises the important role of the local community. (Last Accessed 30-04-10 at bbc. co. uk)Through joined up working and positive partnerships, the needs and holistic wellbeing of every child should be met to make up the Governments vision of Every Child Matters.The issues involving power and position of practitioner are complex. The flow of power has a direct effect on how a child and their family are supported. Power itself is a very tricky idea. Finding out where the power is involves at least two manoeuvres. First, we ask ourselves who is in a position to influence or control the lives of whom? Secondly, we ask ourselves in whose interests is this influence or control exerted? (Walmsley et al 1997131-132)The question of power and status has a direct effe ct on relationships. Those who are at a similar level of position may be more inclined to share information, than with a person that they perceive to have a lower mixer status. Unequal power in relationships and partnerships may have an immense impact on the processes needed for joined up working and could directly affect the outcome for children.It is important to understand the relationship between personal and social construction. The flow of power is a two-directional process. Each persons actions are influenced by their values and beliefs. These actions effect children, families and the wider community. Their values and beliefs are affected by the community in which they live, so these values are shaped by social structure. Our social identity may change depending on experiences, relationships and social interactions. (Wabsley 1997235-237)Different practitioners have different views on their role. Beliefs of others may differ from the beliefs of self. For example other mate p ractitioners do not believe that it is also their responsibility to support and interact heavily with parents and family. They are happy to deal with other education professionals but they look on parents as an obstacle to their work. There are also parents who do not wish to engage with practitioner. There are numerous reasons as to why parents and carers may not work effectively with the Setting. The barriers may be physical or concerning difficulties in communication. (Hobert and Frankel 2003136) For example a lack of time for developing relationships or if they have the opinion that the practitioners are interfering or making judgements on the way they live or had a poor educational experience and may feel intimidated by the educational environment. They may also not understand the value of engaging with the Setting.The Government policy aims to bring about change with dialect on empowerment and community development. This needs good partnerships between families, practitioners and the groups in the wider community.This is not possible if all the practitioners do not share the same vision or if parents do not want to participate in partnerships with the Setting. Some parents are hard to reach and it can be problematic in deciding the best course of action. A practitioner needs to attempt to engage with parents whilst maintaining a professional distance. Parents and family are crucial members of the team around the child.For all of a childs needs to be met all groups that can provide a service to benefit the child must participate and work together towards a popular goal.13Values are therefore linked to wider ideas which are woven into the social fabric and are a great deal mixed and contradictory. We therefore need to expose and examine our own assumptions as professional workers. (Lea 2010 Including and Enabling professional practice and inclusion notes)The Government provide the Schools, National Health Service, Police and other agencies to support th e family. The Government also conduct seek to develop social policies to regulate and shape childrens lives to ultimately improve each childs social outcome. Policies and frameworks for example, the Early Years Foundation stage and Every Child Matters are intentional to guide Setting, Social Workers and other Health Professional to give every child a fairer chance in life.Communication is an important step to try to improve the chances and opportunities of all children. If a setting fails to communicate effectively with an agency there have been extreme consequences for the child and family. trio children a week are dying of abuse or neglect at the hands of parents or guardians,. including some already on the child egis register. Last Accessed 2nd May 2010 at dailymail.co.ukThere may be an impact on the child due to domestic violence. Practitioners need to be on the watch and in tune with the childs usual behaviour to notice differences in the attitude, health and well being of the child.15 The Setting is the core of the diagram. Setting practitioners spend the most time with children and families and in a position to have the closest relationships.The next group have less time in contact with the child, but have regular input for the support of the children in the setting. They are a part of the local community as well as the setting.The third including OFSTED and LEA professionals are called in by the school specialists may have intensive time with a limited number of children on a 11 basis.The quartern include Emergency services and the wider community groups. The motivation for community contact is to be proud and social cohesion.Finally the Government has overarching policies and how they resource and affect children families and the Setting.The long-run outcomes may include children engaged with their community and this may lead to a sense of belonging and an increase in health, positive behaviour and well being. inter-professional and inter-agency working has a huge positive impact on the welfare of children. Government funding, resources and how practitioners support children impact on their self-esteem, progression and multiple issues concerning their life chances. It is the practitioners responsibility to pick up that the resources always get through to the individual childEarly Year practitioners are agents of change. They have the responsibility to ensure high quality early year planning. Their duty to meet the Early Year Foundation Stage involves the aim to constantly improve practice and work in partnership with parents and the wider community.The building of corroboratory relationships with children requires listening effectively to their voice and all the voices of other groups and organisations that interact with the Setting and can influence the childs life chances Through reflection in action and reflection on action a practitioner may use experiences to aid professional development and meet the expectations of the Government.The EYFS process is designed to take down the barriers between professions. The team around the child should have shared values and aims in terms of the outcome of the child and family and consequently the community bought together by the government initiative. The EYPS will allow a better understanding of how the different groups collaborate and this should improve every childs life chances. (ECM para) This builds on the core aims of Every Child Matters which was designed to give a fairer chance to all children. Be Healthy, economic independence.The long-term Government vision is to narrow the gap between the children who achieve and those who do not by providing services to children and their families which is focused on the following five outcomes. Being healthy Staying safe Enjoying and achieving Making a positive contribution Economic well-being (Pugh and Duffy 200610)The children from certain groups such as looked after children, traveller children, children w ith disability and the Gifted and Talented are often considered to be vulnerable to not having all their needs met. The development of Childrens services aims to integrate health, social and educational teams. For true integration to a team and take collective responsibility of the child.The sharing of information is often crucial to position resources to best meet the needs of children. This encourages the development of good quality partnerships should lead to improved services for the child and their family.This is politically driven, and if the government changed will there be the priority on the funding and focus of EYFS and ECM.Political opinions It is the governments aim to have EYPs in all Childrens Centres offering early years provision by 2010 and in every full day care setting by 2015. (Childrens Workforce Development Council Introduction and information guide5)The Labour government has focussed on child poverty using many initiatives. These include Family Tax Credits and Sure Start provision. These are part of a concert programme created because it was identified that your start in the early years is directly related to your life chances. It has been recognised that the quality of parental skills is of importance. Research suggests that the level of education of practitioners has a direct effect on the outcome of the children in their care.This is why the Government is up skilling the Early Years Workforce and promoting good parenting skills. There is research evidence of the benefits of good attachment for a childs whole development.The process of critical self reflection allows for the improvement of my own performance and the performance of my Setting. Every team member needs to jointly reflect on the ways that we can improve out communication and management of our links with the multiple agencies and the wider community. As a team this should be a part of our continual professional development.Word Count 3131

Dwight D Eisenhower Essay -- essays research papers

He was born in a small town called Deniso in western Texas in the year 1890 (Hargrove 22).Then he and his family moved to a railroad town called Abilene in the state of Kansas. Here Dwight Eisenhower grew upwith his 13 other family members. (Hargrove 19). Dwight David Eisenhower is one of Americas greatest heroes with his military career to his two terms as president of the United States. Dwight Eisenhower had many accomplishments to and from West Point through World fight One. Ike Eisenhower wanted to serve his country in any way he could. He found the idea of being a sailor in the U.S Navy intriguing, but when he later applied for entering he found that he was too old at the age of 20. Then after studying hard Eisenhower was accepted atthe West Point Military Academy with the help of a U.S senator (Hargrove33). At college Ike showed himself as a hero on the Army Football team asan end (Hargrove 34). He also found an easier procedure for working travel calculus (Hargrove 36). At the end of his college career in 1915,Eisenhower graduated number 61 out of a class of 164 (Hargrove 38). Eisenhowers military journey began during World War One. When he graduated college World War One was still raging through Europe. Instead of fighting in the infantry overseas Eisenhower was to stay inhabitancy on U.Sbases (Hargrove 41). After being promoted to a Lieutenant Colonel, Eisenhower was sent to Camp Colt to train soldiers about tanks (Hargrove42). Then in the year 1933 he became one of the ...

freud - is civilisation problematic :: essays research papers

DOES FREUDS PSYCHOANALYTIC INTERPRETATION OF THE PSYCHE TURN CIVILIZED EXISTENCE INTO SOMETHING PROBLEMATIC?The pastimeion I puzzle chosen isDoes Freuds psychoanalytic interpretation of the psyche turn civilized existence into something problematic?This question is essentially asking whether what Freud believes about the hu public psyche (or mind) contradict a sentiment in an harmonious society, and therefore is civilised existence essentially nothing but a dilemma.I will attempt to answer this question by drawing on what Freud postulated about the psychical. This will then be used to explain why the human psyche is on a constant quest for the whole, or satisfaction, and how this only leads only to constant discontent and an unconscious drive for self-destruction, known as the death instinct.Firstly, Freud proposed many theories about the psyche, the basis of which organism the segmenting of the psychical into three sections the conscious, the unconscious and the preconscious. T he conscious is the section of the mind containing thoughts that we are aware of. Conscious experiences can be thought about rationally as well as verbalised. The unconscious is the section of the mind that is not directly accessible to awareness, and has been described as a dump box for thoughts and emotions relating to hurt, conflict and anxiety. Freud argues that these thoughts and emotions have not disappeared but that they are constantly, unconsciously, influencing what we do and the decisions we make. And finally, the preconscious is where ordinary memory is stored. Thoughts and feelings stored here are neither conscious nor unconscious, however, they are capable of becoming conscious at any time .This division is the foundation of psychoanalysis, and understanding its complexities is necessary when one is to comprehend mental pathological processes.In Freuds analysis of nuance, he postulated that civilisation has two characteristics, which are inter-dependent upon one anothe r(prenominal). As stated by Freud in The Future of an Illusion, civilisation includes on the one hand all the knowledge and aptitude that men have acquired in order to control the forces of nature and extract its wealth for the satisfaction of human needs, and, on the other hand, all the regulations necessary in order to adjust the relations of men to one another and especially the distribution of the available wealth. In other words, civilisation is characterised by the knowledge man has gained and used to manipulate the forces of nature with the purpose of satisfying mans needs, as well as the regulations which alter mans interactions with each another and the allocation of wealth.

Hemp Essay -- essays research papers fc

Throughout American history our country has come to bank on many different inbred resources. With technology and the population increasing, the number of fossil fuel reserves and natural forests are going down. What America ineluctably is a renewable source of fuels and fibers that will meet the growing needs of the future, but will not damage our environment. One of the most promising sources of fiber, fuel, and natural oil is hemp. ganja, also known as Cannabis Sativa L, has been used in our country since the early 17th century (Schreiber 160). Although hemp is considered an illegal drug, many muckle forget that it is a part of our countrys history. Despite its negative connotations, hemp has the potential to revolutionize the paper, cotton, and fuel industries. Its long fibers can be weaved with others to take hold stronger clothing, while its pulp can be used to make stronger paper. It has been known as an important resource for thousands of years, and in the future, perha ps it will be again. Hemp is a plant that originated in Asia several thousand years ago (Schreiber 7). Its genus is called Cannabis, to which there are three sub species, Sativa, Indica, and Ruderalis. Hemp is of the sativa family, which normally grows to about 4 meters and has a hollow, fibrous stem. When grown industrially, the male plant is used primarily because it grows tall and spindly, producing the most fiber, and allowing the farmer to plant more in a littler area. The female plant is much shorter, and produces buds. Hemp is often confused with another plant of the same genus, Marijuana. Because of this confusion it is imperative that the differences between these two plants are understood. Although very(prenominal) similar, Marijuana is not the same plant as hemp (Williams 2). Marijuana, also known as pot, hashish, or weed, is grown for its buds and leaves, to produce psychoactive effects when introduced into the tender body. Marijuana has high levels of THC (Delta-9 Tet rahydracannibinol), the ingredient that causes the user to be high. Whereas industrial hemp typically has a THC level less than one percent, hemp can have levels up to twenty percent (Washuk 1). Med Byrd, head paper scientist at NCSU said, "You couldnt get high off hemp even if you smoked a joint the size of a telephone pole." Hemp is also contains a substance called cannibidiol, which actually inhibits THC. Under ... ...come the worlds leading crop again, as it once was.BibliographyBarnard, Jeff. Hemps pen Getting Higher But Marijuana Factor Still a Bummer. Los Angeles Times Electric Library 23 August 1998 Cauchon, Dennis. Canadian Hemp Isnt Going to Pot. the States Today Electric Library 7 October 1998. Pg13A Jenkins, Phil. Field Of Opportunity. Canadian Geographic Electric Library 1 March 1999 Julin, Brian. The Hemp FAQ. www.cannabis.com/faqs/hemp1.shtml 1994 Kicklighter, Kirk. Getting Hemp Over The Hump. The News & Observer Electric Library 4 July 1998. McDougal, J eanette. Good Reasons to Stay Skeptical About Legalizing Industrial Hemp. Minneapolis Start Tribune Electric Library 29 April 1999. Pg24A McGraw, Dan. Hemp is High Fashion. U.S. News & World Report Electric Library 20 January 1997 Pg54-56 Quinn, Patrick. Greeks prove to Weed Out Hemp. The Associated Press News Service Electric Library 13 November 1998 Schreiber, Gisela. The Hemp Handbook. Great Britain Vision Paperbacks, 1999. Williams, Ted. Legalize It Audubon Magazine Email November 1999. Washuk, Bonnie. Hemp Touted as a improve Paper Source. Sun Journal Electric Library 5 April 1998.

The Once And Future King - Mig Essay -- essays research papers

The Once and Future KingThe legend of King Arthur is a tale as timeless as any other open up in literature today. Introduced to us by Sir Thomas Malory during the fifteenth century in Morte d Arthur, it was the first complete tale of Arthurs life. Countless portrayals followed for any reader interest in the tale of the boy who was destined to become King. The Once and Future King by T.H. White is certainly the most popular representation of the never-failing legend of King Arthur. It is similar to the tales woven before it but White gives new meanings and modernization to the traditional story through his unique perspectives and writing. White takes the reader on a journey in the past enriched by the knowledge of the future. Most importantly, Whites notion that society cannot be governed by might alone is a prevalent theme throughout the work. He expresses the ideals of might vs. right as it relates to a world much like our world today. He clearly understands that might rules th e actions of individuals, but right is the ideal that we look for to obtain. As we often find, the former prevails.The novel is divided into four sections that represent periods of time in Arthurs life. The novel begins with The Sword in the Stone, the tale of Arthurs childhood. At this time, he is not referred to as Arthur but Wart. His foster brother gave him this name and it was his childhood nemesis. Early in the book, Wart finds Merlyn who becomes his tutor. One of the earliest indicatio...

Free Color Purple Essays: The Power of Women :: Color Purple Essays

The Power of Women in The Color Purple Despite the odds women can shoot down all obstacles. In the past, women have desperately struggled because they were be runtyd by men. They were thought of as ignorant beings that only knew how to manage housework. In The Color Purple, by Alice Walker, sexism was co-ordinated in the novel. Throughout the story, several women were extremely mistreated by men. Their experiences were considered trivial because they were always subordinated to them. Through the collection of letters that Celie wrote, the reader could see the development of a frightened young woman who had little regard for herself and of a nonher, Shug, who struggled to become a successful woman. In fact, Celie nearly struggled for her happiness her entire life. When she was only a little girl, her stepfather sexually abused her. He then sold her to a man named Mr. ____ who had no intention of loving her, No matter what Im thinking. No matter what I feel. It just him (Walker 69) . Mr. ____ verbally and physically abused her. He expected her to manage all the housework and demanded that she took care of his kids, They look at me in that respect struggling with Mr.____ children (Walker 45). If Celie refused, she was punished. Through all these traumatizing events, Celie lost respect for herself and forgot how to love. Her life was full of darkness without a single trace of light. However, Celie met a woman named Shug who gave her the courage to date for what she believed in. Shug taught her how to laugh and play and showed Celie a whole new perspective of life. Shug constantly reminded Celie to speak out if something was bothering her and to not do anything that she did not feel like doing, grade whatever come to mind, forgit about polite (Walker 75). Celie was no longer afraid of Mr. ____. She stopped doing housework and left the dwelling to start her own business, You a lowdown clink is whats wrong. Its time to leave you and enter into the Creation. And your dead body just the welcome mat I need (Walker 207). She realized that women do not need men to survive because they can manage on their own. Celie was a brand new woman. Moreover, Shug was a successful and powerful woman. She was a desirable blues singer who was creative and smart.