Cheap Alternative Polymeric Materials To Abs

Cheap Alternative Polymeric satisfyings To AbsIn recent years, fused deposition modeling (FDM) has become a widely used technology in rapid prototyping process. typically polymer tangibles used be acrylonitrile thatadiene styrene (ABS) and polycarbonate (PC). The polymer is fed into equipment as a 1.6mm diam, which is heated and extruded onto a make platform. The ABS chain sold by the equipment suppliers is very expensive at or so270 per kg 1. Also, during the FDM process, more or less of this poppycock is used as build supports and which is simply thrown away after(prenominal) being removed from the partition. This vomit aims to use alternate physicals for the FDM process.1.2 Previous Work of ProjectThis nominate is followed by a summer 2009 spew that Yifei Zhang did. In Zhangs project, genius grade of virgin ABS has similar melt and feed properties to the benchmark square, but delinquent to the limitations of laboratory equipment and project funds, Zhang cann ot get the topic. Zhang alike try to use WEEE ABS as a potential source, but the degree of purity (98%) could not be accepted in FDM operation. In addition, a nylon strimmer line was order which had the suitable fibril diam, but it also failed because of the viscosity of the materials.1.3 Objectives of ProjectAfter summarize the Zhangs experience, the target of project is to identify the cheap alternative polymeric materials to ABS. Before the project, a further polymer understanding of the melt and current properties should be reviewed. Some problems Zhang met request to be solved to successfully produce the intersection. Some experiments, which Zhang did, need to be repeated to have a better understanding of this project. Some trial materials atomic number 18 aimed to produce the harvestings, and wherefore the properties of product are evaluated.2. Literature Survey2.1 Why use rapid prototyping methods?Rapid Prototyping (RP) is specify as the use of a computer aided de sign (CAD)-establish automated additive manufacturing process to construct parts that are used directly as finished products or components2. Generally, it is a quick way to twist a virtual design to a real model. at that place are many purposes for a prototyping, for example, bear out system specification or deliver early proof of concept or create a market demo 3. The outstrip reasons to rapid prototyping is to save time and save money. A complete product design pedal is very long, and there are a lot of trials and errors in the affect. The rapid prototyping touch on can be used to modify the trial and debug the prototype in a little(a) time. In addition, the resources can be saved by producing reduce scale model.2.2 Rapid prototyping equipmentWith the development of new-fangled science and technology, techniques of rapid prototyping technology increasingly diversified, such as stereo lithography (SL), laminated object manufacturing (LOM), selective optical maser sinteri ng (SLS), selective laser thawing (SLM), fused deposition modeling (FDM), ink jet printing (IJP), three-D printing (3DP) 4. in that location are three categories according to the raw material used in these processing. They are liquid-based system, powder-based system and solid-based system 2 3. FDM belongs to solid-based RP processes. The product made by FDM operation can be used as trial tests or for further studies, which reduces the risk of designing mistakes.2.2.1 Stratasys FDM SystemFused Deposition Modeling (FDM), which invented by Stratasys Inc, is used in the project. Generally, FDM is a typical PR process, which contains a computer controlled, and micro-extrusion system. In the process, the polymer is fed into the equipment as a 1.6 diameter filament, which is heated and extruded through a die as a 0.5mm fluid filament. By lay down of the melt filament from nozzle, certain thickness of 2-D layers structure is formed, past by tell the process for the second layer, repeat this process layer by layer, then a complex three-D structure is formed. As can be seen in name 1, the processing route follows the design, forming and finishes these three steps.In the route of this manufacture, pre-process CAD file is designed by FDM Quickslice software and saved as STL format 6, and then during the manufacture part, the thermoplastic material is extruded and formed layer by layer on precise classs. have the support structures then the final product is completed.Extrusion process is a key step in the FDM manufacturing Fig 2. Generally speaking, the polymer filament is in solid state when feeding into the FDM machine. The filaments of molten thermoplastic are extruded from a heated nozzle. The process lays down both support material filament and build material filament for one layer at a time. The diameter of the filament is about 1.67mm, and the range of diameter of several(predicate) tips is from 0.025mm to 0.4mm.Functional prototyping is used via an additive fabrication system. Manufacturing tools and End-Use parts also can be produced with FDM system. There are many advantages including streamlining the development process, reducing the cost and getting to the market faster 7.The disadvantage is obvious, the price of pickup is very expensive, and ABS build (including the breakaway materials) is 275.00 per kg. So find the cheap alternative material is the target of the project.2.2.2 Mesostructure of FDM ABS 8There are two kinds of mesostructure during the FDM processing Fig 3. The aligned mesostructure is the standard model of the machine. Another skew mesotructure uses the alternating jogs of space 0.5(W+g) in the ProEngineer drawing Fig 4. A correction in the nozzle height setting, z (see equation 1), exploitation the z-direction shrinkage factor, is set in the QuickSlice program.The void density on the material plane i is defined as see equation 2). The extent of circumferential fiber-to-fiber bonding is quantified using a cros s-section amount of the fiber-to-fiber interface bond distance densities. For a single fiber, it is defined as (see equation 3) concord to Jose, jam and John, the same filament materials (ABS P400) and the same serial FDM machine were used to test. So the data have the eccentric value.As can be seen in Fig 5, the lowest void density value is the skew configuration structure. From the chart above (Fig 5 Fig 6 and Fig 7), Fiber gap (g) and menses straddle are two key factors on mesostructure while temperatures (Te and TL) had very little influence. So for the best properties, minimum void and maximum bond length are needed.2.3 Alternative material2.3.1 Standard MaterialThe current materials using for the FDM manufacturing process are supplied by Stratasys Inc, which could be ABS plastic, PC and wax 9. The P400 ABS, whose main windup(prenominal) properties can be clearly know in Fig 8, bought from the machine vendor was used as benchmark this project, provided as white filament with a diameter of 1.67mm and a 0.02 mm tolerance, barroomd by laboratorys calipers.2.3.2 Recycled ABSRecycled ABS, I think, still is the most ideal choose in this project. The recycled WEEE industry is growing by more(prenominal) attention nowadays. Compared to virgin ABS, the price of WEEE ABS is rather cheap. Due to the problem of the degree of purity in antecedent project, one solution of project is to investigate methods of filtering recycled ABS for FDM.During recent years, some researches about WEEE have been carried out 11 12.There are similar results on their reports. With the respect to the properties of virgin ABS, a decrease in mechanical properties (except the modulus of elasticity) was save for both PC/ABS and ABS/HIPS mixtures 11.One approach to contrastive characteristics of recycled polymer was reported by Liang 13. The contaminants of these recycled polymers are showed in Fig 11.Previous degradation levels ABS and WEEE ABSFTIR spectra for WEEE ABS can be comp ared with virgin ABS to estimate deviances. According to Balarts research, small degradation in ABS was evaluated in the FTIR spectra (Fig 12). The hydroxyl groups which absorb near 3250cm-1 shown, and the carbonyl groups, which absorb near 1750cm-1 missed in the spectra 11.2.3.4 mixing of ABS/PC systemAccording to Balart 11, Equivalent Box Model (EBM) was carried out to analysis the mechanical expression of ABS/PC blends. EBM can obtain a range of tensile values of blends. Fig 13 shows different curves with the critical values and different A values which is an experimental parameter related to the various fundamental interaction forces along the interface.As Balart pointed, the optimum range between10wt% and 20wt% PC in mixture shows an industrial material with equilibrate properties 11. One reason is that mechanical ductile properties do not decrease 11.Furthermore, according to Arnold, the mechanical properties of recycled ABS, in particular ductility, are significantly aff ected by gas evolution during the process of ABS from WEEE 14.Tarantill and Mitsakaki have done some tests about the proprieties of ABS/PC blends.In this project, more can be dig deeper in ABS based on the Zhangs work.First, FTIR spectra can be used to compare the virgin ABS, after processing ABS and WEEE ABS. The relationship between WEEE ABS, after processing ABS and standard ABS should be clear in this project.Second, ABS/PC mixture is one way to investigate. In Balarts report, the optimum range is 10wt% to 20wt% the mechanical properties of this range also have a good performance.Furthermore, to refine the WEEE ABS is also one way, but due to the current situation it is hard to find a process to cast up the purity of WEEE ABS (98%).Simply mix one equivalent part of purity ABS and one equivalent part of WEEE ABS may be possible. Higher purity of WEEE ABS may have better properties.2.3.5 Alternative Nylon SourceAccording to Zhangs research, Nylon could be an alternative material to knock back the ABS P400. Compared to the ABS, Nylon have lower price. In the laboratory, nylon strimmer line has already been produced into filament with the same diameter as benchmark P400 ABS. It is easier to get the raw material. One key factor for this alternative material is melt temperature when nylon as a sample. The recommend FDM operation on standard P400 ABS was 100oC high than the melting point. Among the nylon-6, nylon-12 and nylon-66, nylon-12, which could be a potential material, has the lowest melting point 179oC 15. Compared to P400 benchmark, the melt mass flow rate can be a reasonable range from 7.0 to 20 16. During the Zhangs trial of nylon material, 300oC is the highest temperature limitation for liquefying the FDM machine, but nylon-6 need higher. So glue gun can be used for higher FDM operation temperature. The further properties of the Nylon product need to be evaluated in the experiment.2.4 Measuring InstrumentsThe target of the project is to find the al ternative material to replace the ABS-P400, before that, the properties of ABS-P400 and after processing ABS should be investigated. By comparing the differences of these two materials, the possible of re-used after processing ABS is demonstrated. Moreover, the data of the standard material can be the reference of the alternative materials. The main equipments and tests may be used below.2.4.1 Melt Flow Index (MFI)Viscous FlowAccording to Zhangs report, viscous flow of the material is the key to this project. Low viscosity simply means that the materials are able to flow easily 2. viscosity is lowered significantly by increasing temperature according to the equation 4Where 0 is a constant, Q is the energizing energy for flow, R is the universal gas constant and T is absolute temperature. In this project, MFI is used to sum of money the viscous flow.According to Zhang, the some MFI results were obtained.MFI InstrumentThe Melt Flow Index (MFI) is a way to measure the ease of flow of the melt of a thermoplastic polymer. In Farlexs free dictionary, it is defined as the saddle of polymer in grams flowing in 10 minutes through a capillary of specific diameter and length by a bosom applied via impose alternative gravimetric weights for alternative prescribed temperatures17. One conclusion of Balart is that extrusion and injection moulding process are very important to determine good mixing conditions and homogeneity. MFI measurements were used with an extrusion plastometer 11. Flow rate, whose unit is g/10mins, reflects the melt polymers features. In this project, there are two criterions for different grades of ABS plastic. One is 2200C/10kg for injection moulding condition, which is a general standard of flow attribute. Another condition 2700C/2.16kg, which is a special condition for FDM condition (in Zhangs report), need to be evaluated. Because the working strain of FDM is complicated, the push force of extrusion cannot be constant due to the different spee d of extrusion. To simulate the surround of FDM, the push force must be understood. The data of MFI will have the value of reference.In this project, the difference of MFI between virgin ABS and reused ABS will be evaluated. In theory, for the thermal plastic, repeated heating and cooling cycle does not change the size of the plastic molecular chains, so MFI should not be changed 18. However, storage conditions of reused materials are usually poor, usually placed at random, the properties of material are mostly metamorphic.According to Zhangs report, sample wrying should be mentioned due to the absorbent of polymer. This element will greatly affect the accuracy. The specimens including ABS and nylon were put into oven for 2hours at 900C for ABS (1200C for PC) 13 and keep dry condition to prevent further water absorbing. The other factor affecting precision is cleaning. Die diameter affect the speed of melt flow. It is easy to have the deposition in the inner wall. The test result r educes due to the increasing of resistance of melt flow. So the cleaning is very important element to the accurate.2.4.2 capillary tubing Rheometry EquipmentCapillary rheometer is another way to measure the viscosity of the materials. The polymer is put into a test tube with a known diameter, and there are several horizontal marks scribed on it. When put some pressure to the polymer, a vacuum is used to get the flow polymer, and the time required is measured for the melt from one mark to another. Elliott 19 explains this device also can test the density and surface tension.2.4.3 Fourier-Transform Infrared SpectrometersFTIR test designed in this project is to show the different molecules in the trial materials other than ABS P400. FTIR test is to evaluate what is the material composition of the FDM ABS and after FDM processing material, and to find out whether after FDM processing materials become degenerate.Fourier-transform infrared (FTIR) is based on the interferogram, which is t he idea of the interference of radiation 20. A single is produced by the change of path length between the two beams the changeable of distance and frequency are convertible by the mathematical of Fourier-transformation 20. The most common interferometer used is a Michelson interferometer. There are two perpendicularly mirrors which are bisected by a semi-reflecting film (Fig 2).The two beams defected from theses mirrors return to the beam splitter where they recombine and interfere. The moving mirror supplies an optical path difference, which controls the transmission and reflection.2.4.4 Glue GunAccording to Zhangs report, nylon strimmer line has been produced with the same diameter as benchmark P400 ABS. However, it was frame that the strimmer line was unable to extrude from the FDM tip as need. When the temperature gets to 295 oC, which is the highest temperature limitation for liquefying the FDM machine, a small amount of material was extruded 21. In this project, glue gun can be used to replace the tip to get higher temperature. The gun uses a heat element to continuous heat the plastic glue, the temperature of which can reach around 380 degrees 21.2.5 mechanical rest2.5.1 Tensile TestThe designing of tensile test aimed to evaluate the mechanical property among all alternative material.The specimen was studied by tensile test using a Lloyd LR50KPlus materials interrogatory machine (Fareham, UK). For each selected building material, the testing samples were produced on three patterns of raster orientation, which built up in X, Y, and Z axis respectively. All tensile test samples were made with ISO 527-2-5A standard with a dumbbell shape.According to Zhangs report, benchmark P400 ABS sample was test, the result shows in Fig 10.

Bull Riding injury Risks

Bull Riding injury RisksToughest manoeuvre on DirtBull riding is an extreme sport with serious life threatening risks hardly have little restriction in the safety equipment t chapeau is needed to protect these suspensors. Hockey, footb tout ensemble, and even baseb alone(prenominal) all have been mandated to wear safety helmet to protect them from injury. For newer extreme sports, like snowboarding and skateboarding, the use of a helmet is r arely debated anymore. either time out of the chute, bull riders face danger as real as the horns, hoofs and hard heads of bulls that justt end weigh a long ton or more.(usatoday) Professional bull riders should meet the same safety monger requirements as any other contact sport. Trying to hold on to the rope and not be tossed like a rag doll on a back of a bull for eighter seconds is more dangerous than playing hockey or football, in which these sports require helmets.When it comes to helmets, this little piece of coruscate and plasti c fag save a bull riders life. Just training for this sport advise be disastrous The nature of this sport is brutal and is not biased. Any rider passel be hurt. Although helmets are fairly new and maybe uncomfortable head and spinal injuries can be prevented with their use. No athlete in any sport can stand repeated concussions. In bull riding there are three major times when head injuries can occur. A bull rider can be jerked tossed forward and slam his head on a bulls horns. If the rider reaches eight second dismounting can be hazardous. They could get their hand tied up in the rope that is around the bull and be stomped while trying to get the rider loose. A rider can be violently thrown in the air and dropped to the hard dirt. It is unpredictable how their head is going to land and absorb the shock of the impact. It is usual sense that we use our brain for thinking and day to day personate functions, without it we would just be in a vegetative state Since we do all our th inking with our brains and our brains are housed in our heads, we should do everything we can to protect this valuable asset. Wearing a helmet should become mandatory soon. It only makes sense to protect something as delicate and vulnerable as ones head. Rodeo, a sport in which the cowboy hat is as oft an icon as a bucking bronco, has been reluctant to require its riders to wear helmets.(Brown) Lee Akin experienced the consequences clenched fist hand of not wearing a helmet. When a bull weighing nearly a ton stepped on Lee Akins head one year ago at an Alabama rodeo, doctors didnt think the four-time PBR finalist would live. (Godfrey)another(prenominal) master bull rider, Jerome Davis, met his fate in the fall of 1997.He crashed into the bull. Davis was jerked back and hit his head against the animal. Hewas knocked unconscious and fell to the ground head first. The impact caused afracture/dislocation of the seventh vertebrae at the base of his neck. The sixth vertebraeexploded and shattered. He was paralyzed from the neck down.( Hollen)When it comes to injuriesA study of nearly 2,000 professional rodeo events between 1981 and 2005 found that halfof all injuries occurred during bull riding. Knee and shoulder injuries are most common, consort to Downey, but most alarming are the head injuries. Concussions account fornearly 9 percent of all bull riding injuries, he notes.( Rueters)Bull riders cannot miss an event even if their injuries are minor but need time to heal. When a bull rider gets injured and cannot compete, he falls down in his rankings, risking his title and income. So lie withing that, they continue to compete with concussions and other broken or dislocated body parts. As for the cowboys who do wear a helmet longevity seems to be a common theme ( Geupel)We know the cowboy hat holds great traditions of bull riders. No doubt this symbol is very meaningful to all those who live this life. Before the event ride, after the ride and at all other times, is when the cowboy hat can be worn. Lets not lose our heads and start our children on the right foot with using a helmet from day one.

MIS Related Issues

MIS Related Issues ASOS.com MIS RELATED ISSUES notwithstanding the spectacular dot-com bust a few years ago, the profit has markedly transposed the way we do clientele. (Reynolds, 2004, 78) Conducting business in the digital economic system refers to the use of wind vane-based systems, on the Internet and another(prenominal)wise electronic meshworks, to accomplish umpteen another(prenominal) form of e-commerce. Networked com bewildering is sufficeing nearly companies excel and is helping others entirely to survive. Gener whollyy, the collection of computing systems utilize by an institution is defined as breeding applied science (IT). In the stand uped countries, almost all speciality and declamatory organizations use reading technologies, including e-commerce, to support their operations. IT, in its narrow definition, refers to the technological side of an nurture System (IS) it includes the hardw atomic hail 18, softwargon product, databases, networks, etc . An IS collects, processes, stores, analyzes, and disseminates discipline for a specialized purpose. It processes the inputs (data, instructions) by using IT and produces come to the foreputs (reports, calculations). It includes people, procedures, facilities and it operates within an environment.MIS refers to the management of ISs and it raises a lot of concerns, much(prenominal) as globular, e-commerce, softw ar system choices, ethical, social and operation strategy issues. (Turban et al, 2001) The drift of this paper is to examine five selected MIS topics and analyze specifically champion or two of the occurring issues of some(prenominal)ly topic then, connect these issues to the ASOS.com enterprise.The paper begins with a shortened observation of the background of ASOS.com. Initially, the selected topics and issues, derived from relevant literature, volition be described. Next, a discussion of whether each issue is a problem for ASOS.com or not is presented. Further to a greater extent, a contemplative paragraph follows. The paper ends with the conclusion section and the references. ASOS.com Asos.com, is the UKs largest online-only fashion and peach store, absorbing everyplace one million visitors a week. Its name stands for As Seen On Screen and it was elect to show the brands intention, to supply the public with outfits similar to the styles of celebrities. Asos.com targets 16 to 34 year olds it moroseers womens fashion, menswear, accessories, jewelry and peach products. It provides potential customers browsing its content, with a number of crotchety features. For example, individual catwalk beat videos of most clothing items on the situate, and a fashion blog, which is frequently updated with articles relating to celebrity and entertainment.Asos.com is greatly admired for its large variety of fashion and beauty goods and for the speed at which it keeps up with the in vogue(p) fashion trends. (http//www.asos.com/)Asos.coms headquart ers are located in Camden Town, in north-central capital of the United Kingdom. The companion was launched by Nick Robertson in 2000. Since then, the online company has seen signifi washstandt growth. everyplace Christmas season of 2008, it reported a 100% extend in gross revenue and for the financial year ending 31 March 2009, it reported a revenue of 165,395,000.Asos.com is universe run by a board of cardinal straightors and two non-executive directors.It is a PLC, quoted on the AIM (Alternative Investment Market) part of the London Stock Exchange. AIM is not as strict in its rules as the main market it on that pointfore, helps smaller companies to raise capital through with(predicate) with(predicate) the cut-rate sale of shares. Asos.com chose to use the web channel, since researches bear shown that online sales have been increasing meteoric than any other sector. It has targeted young people, for these represent most 60% of online shoppers. To attract them, it offe rs a diverse pad of brands and products. Above all, it offers a pleasurable shop experience, by ensuring that the web order provides much more than than a customer would expect from a shop. The site, in equivalent manner, provides more choices, competitive prices, new styles and, above all, convenience.While growing, Asos.com has unwraped a more complex structure. It has worked hard to keep up with changes in technology. The website is being kept up-to-date by constantly adding new products and product lines.Moreover, Asos.com uses other parley channels to drive growth. These include a monthly cartridge clip of 116 pages and an e-mail newsletter that is being sent to 1.8 million users each week. In addition, it distributes PR pieces in other publications and fosters word-of-mouth recommendation. (http//www.asos.com/)GLOBAL MIS/RISKSDesigning websites for a global audienceThe designing of roaring web-sites that present information round products and services is a relatively recent occupation, which introduced new issues and challenges that causalitys were called to face. It is well-known that some web-sites seem to be more efficient than others. They are more ofttimes visited and more bar pucker fors occur. Very little is reported in the literature on web design and the evaluation of the factors that formulate a conquestful web-site. However, many another(prenominal) studies have been made, in format to empirically test the features, often mentioned by trade journals and vendors, as being critical to design a successful web site.The roles of a web-site are many and important some of them are marketing research, marketing tool, public relation machine and means of payment. Web sites are basically an interface between the embodyumer and the cockeyed.The web sites are being designed in order to facilitate organizations, to carry out business activities by using Internet technology. On their web sites, each organization promotes and sells its produ cts or services, provides catalogs, technical support and obtains useful feedback from its consumers. (Udo and Marquis, 2001/2)According to Udo and Marquis, there are eight factors that put forward to the design of an effective web site* Download Time (response time)* Navigation * Graphics Usage* Interactivity* Cohesion* eubstance* Use of Frames* Amount of Advertisements(Udo and Marquis, 2001/2)According to Tilson, R. principles like simplicity, satisfaction (feedback) and versatility (flexibility) are excessively very important in designing e-commerce sites. In fact, Tilson describes eight factors, with which the designer happen upons the following* Simplicity doesnt compromise us talent for function.* Support user is in project with proactive assistance.* Obviousness understands objects and their controls visible and intuitive.* Encouragement makes actions predictable and reversible.* Satisfaction (feedback) creates a feeling of progress and achievement.* Accessibility mak es all objects accessible at all times.* Versatility (flexibility) supports alternate interaction techniques.* Personalization allows users to customize. (Tilson et al, 1998) Asos.com has very successfully designed its website for a global audience.As already mentioned, the website offers to potential customers a large variety of unique features, such as catwalk videos, a fashion blog, a diverse range of brands and products, a pleasurable shopping experience, competitive prices, new styles and convenience, in order to attract more users and go under itself apart from other similar websites. The company tries to keep up with changes in technology by frequently modify the website, which is also kept up-to-date by constantly adding new products and product lines, tally to the latest fashion trends. Its global success has been recognized through many awards such as% Sep 2002 E-commerce awards Highly commended% Feb 2005 More magazine publisher Fashion Awards Most Addictive Online S hopping% Oct 2008 Aim Awards Company of the social class% Nov 2008 Company High Street Awards Best Online Shopping% Mar 2009 ecumenical Online Fashion Awards Best Online Retailer(http//www.asos.com/)E-COMMERCE AND ITS ISSUES Electronic commerce is taking off both in terms of the number of users shopping, as well as, the get amount of people, who are spending via Internet based transactions.(Tilson et al, 1998)E-commerce is gaining greatness rapidly, in to solar days business environment. The practice of e-commerce has been in existence since 1965 and has attracted the interest of many pundits. Most companies accepted and adopted the e-commerce technology faster than any other technology in the history of mankind. The reason is that the benefits are plenty by creating a web site they burn be seen all around the world, reach out to new customers, have lower transaction embodys, come to their customers expectations and needs, provide new services and products and therefore, keep on competitive.(Khan, 2008)E-commerce presents enormous opportunities for both consumers and businesses in the world. The self-service enabled by it, allows consumers to conduct a all-inclusive-range of activities. They can access thousands of online sites and purchase anything, from groceries to books, cars, credit-cards and loans. As Mark Hurst stated Its ease of use, its ease of use. Why doesnt the sedulousness get that? (Andrews, 1998)Legal and Ethical issues in E-Business Internet technology has make up new challenges for the security department of individual seclusion.Computer information, regarding Internet users, is generated every day through credit card purchases, telephone calls, magazine subscriptions, video rentals, mail-order purchases, banking records and local anaesthetic/state/federal government records. If this information is put together and prone(p) properly, it could reveal a users credit information, driving habits, tastes, neckties, policy-makin g interests and much more.It is come-at-able to record many online activities, including which websites a user has visited, which newsgroups or files he has accessed and what items he has purchased over the Web. Some organizations use this information to better target their offerings. Others monitor the Internet usage of their employees to see how they are using company network resources.A new data analysis technology called NORA (non-obvious-relationship-awareness) offers even more officeful profiling capabilities to the government and the private sector. NORA can take information about people from sources like employment natural coverings, telephone records, customer listings and precious lists, and correlate relationships to begin obscure hidden connections that might help come across criminals or terrorists.Cookies are another noteworthy issue. Cookies are tiny files deposited on a computer hard drive, when a user visits certain websites. Cookies secernate the visitors We b-browser software and track visits to the website. When the visitor returns to the site, the website software will search the visitors computer, find the cookie and know what that person has done in the past. Then the site can customize its contents for each visitors interests. there are several more ethical/legal concerns occurring from the use of IT. For example, another issue is the protection of intellectual property such as software, digital books, digital music, or digitized video. It is extremely difficult to protect intellectual property, when it can so intimately be copied and distributed. In addition, there is the matter of the spam messages and the computer thieving/fraud (stealing personal credit card information). (Laudon and Laudon, 2005) Asos.com guarantees privacy and security over credit card purchases for the website visitors. There have been strong movements from the political involve to protect the Web users privacy and security. Additionally, the online ind ustry has preferred self-regulation to privacy law for protecting consumers. In 1998, the online industry formed the Online Privacy Alliance to encourage self-regulation to develop a set of privacy guidelines for its members. The group promotes the use of online seals, like TRUSTe, certifying websites adhering to certain privacy principles. There has also been created an additional industry association called Network Advertising Initiative (NAI) to develop its own privacy policies to help consumers opt out of advertising network programs and provide consumers redress from abuses.On top of the legislation, new technologies are available to protect user privacy during interactions with websites. Many of these tools are used for encrypting e-mail, making surfing and e-mail activities erupt anonymous, preventing client computers from accepting cookies etc. Asos.com plans to use such activities in the short-run, to batten down its visitors privacy. (Laudon and Laudon, 2005)SOFTWARE SY STEM CHOICES To buy off-the-shelf packet boats or develop from whoresonThe acquisition of new software and hardware can flirt dramatic applications that will change an organization. Managers mustiness be prepared to make angry acquisitions that will have a significant impact on the firm. There has been some movement towards outsourcing and strategic alliances to reduce the time required to develop vital applications. Buying instead of making is one strategy to bring change more quickly in the firm. However, the purchase finding is one that usually warrants advice from systems professionals. Software can be bought from a large number of companies. Manufacturers of large computers often sell proprietary software for them, especially run systems. Companies like Computer Associates sell a great deal of software for large-scale computers.The main attraction of buying of-the-shelf packages is to repress having to develop a custom system. Custom programming is expensive and time-c onsuming therefore, when a package is available, it should be considered.The major emolument of using a package is exist savings. The package developer expects to sell a number of packages to recover the investment in developing it. The toll is thus amortized over a number of users. The cost to the developer though is usually higher than the development of a single application would be, since the package must be general enough to be used by a number of customers. This increased generality makes the package larger, more complex and often less efficient to operate than an application specifically developed for a single application. (Henry and Lucas, 2000)The make or buy decision is alship canal a difficult one for management. The availability of new technologies in the marketplace and a movement by firms to get back to their message competencies, have led many companies to select the buy option.Because of the high cost and long time required to develop software, most managers look premier(prenominal) at whether they can buy lively software and modify it, if necessary, to avoid programming an application from scratch. (Henry and Lucas, 2000)(Henry and Lucas, 2000) Asos.coms managers had to face all these difficulties in order to make a decision of whether to develop their own custom system or buy existing software and modify it, according to their needs. They could have depended upon outsourcing to develop and operate their applications, or choose to retain part of their IT functions and to partially source some activities, which I believe would be the best decision for the company. Unfortunately, there isnt much information in the Asos.com website of how the organizations software systems were developed.ETHICS / SOCIAL ISSUES Information ethics relates to standards of right and wrong in information processing practices. Organizations must deal with ethical issues relating to their employees, customers and suppliers. Ethical issues are of high importance, for they have the power to damage the image of an organization and to destroy the morale of the employees.Ethics is a complicated area, since ethical issues are not cut-and-tried they vary between people, cultures and countries. What whitethorn be regarded as ethical by one person may be regarded as unethical by another. (Turban et al, 2001)Displacement of employees with Information technology IT offers many benefits to the organizations. A key benefit of IT is for example, the reengineering of work it provides operations with many benefits such as elimi race of production waste and reduction of in operation(p) costs. On the other hand, redesigning business processes could cause millions of employees to lose their jobs.As Rifkin (1993) tellWe will create a society run by a small high-tech elite of corporate professionals in a nation of the permanently unemployed. (Laudon and Laudon, 2005)Some argue that relieving bright, educated workers from reengineered jobs will result in t heir replacement to better jobs in fast-growth industries. However this does not apply to unskilled, manual(prenominal) workers and less well-educated, old managers.Consequently, IT has created new ethical dilemmas, in which one set of interests is pitted against another. For example, many of the large telephone companies in the USA are using IT to reduce the sizes of their workforces. Voice recognition software reduces the need for sympathetic operators by enabling computers to recognize a customers responses to a series of computerized questions. Competing set at work are, therefore, developed and groups are lined on all side of a debate. Companies argue that displacing employees with IT is ethical, since they have the right to use ISs to increase their productivity and reduce the size of their workforce, in order to lower expenses and remain in business. The employees that are being displaced argue that their employers have responsibilities against their welfare and that thei r work shift with IT is unethical. (Laudon and Laudon, 2005) Asos.com, as an online corporation, occupies much less personnel than traditional fashion and beauty industries. The company hires high-educated, IT experts to run the operating software and keep the companys website updated with the most innovative features. Displacement of employees with IT is not an issue for Asos.com, although, the latest movement of businesses moving into the digital economy, could be an issue for less and less workers are needed.STRATEGY AND IS / INITIATIVES agonistic reinforcement is at the core of a firms success or failure. (Turban et al, 2001) find continued, powerful Competitive AdvantageComputer-based ISs have been enhancing competitiveness and creating strategic advantage for several decades.A competitive strategy is defined as a broad-based formula for how a business is going to compete, what its goals should be and what plans or policies will be required to carry out those goals. Through its competitive strategy, an organization seeks a competitive advantage in an industry.A Competitive Advantage represents an advantage over competitors in some measure such as cost, quality, or speed. A strategic IS can assist an organization to gain a competitive advantage through contribution to its strategic goals and the ability to considerably increase performance and productivity. (Turban et al, 2001)M. Porters competitive forces model is the most favorite framework for analyzing competitiveness. It is used to develop strategies for organizations, with the purpose of increasing their competitive edge. Porters model identifies five major forces that could endanger an organizations position in a given industry.These forces are1. The threat of entry of new competitors2. The negociate power of suppliers3. The bargaining power of customers4. The threat of substitute products or services5. The rivalry among existing firms in the industry (Turban et al, 2001) Asos.com is an online -only corporation this fact alone provides the company with astrong competitive advantage over its (traditional-clothing-stores) competitors. Asos.com possesses a competitive advantage, mainly, in a matter of cost/expenses, since it doesnt own stores and doesnt occupy vendors and other kinds of stave (cleaning staff, security, etc.) For Asos.com, Internet technologies offer very powerful tools that can increase success through traditional sources of competitive advantage. For example, apart from low cost, Asos.com has an excellent customer service and superior supply chain management. Low costs collapse to more advantages such as competitive prices and supreme quality for the companys products. conceive and Decide IT outline be a leader, a follower or an experimenter Strategic management refers to the conduct of drafting, implementing and evaluating cross-functional decisions that will enable an organization to achieve its long-term objectives.IT contributes to strategic managemen t in many ways. For example, it can contribute through innovative applications, competitive weapons, changes in processes, links with business partners, cost reductions, relationships with suppliers and customers, new products and competitive intelligence.Porters model identifies the forces that influence competitive advantage in the marketplace. Managers are interested in the development of a strategy that aims to uphold a profitable and sustainable position against these five forces. To accomplish this, a company needs to develop a strategy of performing activities other than from a competitor.There are many different strategies that managers can choose, according to which copes best with their operation. Some of them are the following Cost Leadership dodging Produce products at the lowest cost in the industry. A firm achieves cost-leadership in its industry by thrifty buying practices, efficient business processes, forcing up the prices paid by competitors and helping customers /suppliers reduce their costs. Differentiation Strategy Offer different products, services, or product features. By offering different-better products companies can charge higher prices, sell more, or both. Niche Strategy involve a narrow-scope segment (niche market) and be the best in quality, speed or cost in that market. Innovation Strategy Introduce new products and services, put new features in existing ones, or develop new ways to produce them.There are many other strategies such as Growth, Alliance, Operational Effectiveness, Time Strategy, etc. (Turban et al, 2001) Asos.com has tried to implement Niche strategies. It has chosen a relatively small market segment (it targets consumers aged 16 to 34) in the clothing/fashion and beauty industry and it has tried to be the best in cost, quality, and speed of the deliveries (same day delivery service through the use of MetaPack delivery management software and CitySprints SameDay Courier solution). Given that it is an online enter prise, and it can therefore keep expenses low, it demonstrates very competitive prices and a very wide range of products and brands. It also maintains high standards of quality for its products. (http//www.asos.com/)REFLECTIVE PARAGRAPHI believe that the main lesson learnt here is that the use of IT has many benefits, but also many drawbacks. IT and the use of information systems can bring rapid change to organizations, enhance productivity and reduce costs. A firm established on the World Wide Web has countless advantages, which is why most intermediate and large organizations and even small ones create a website. In contrast, numerous concerns derive from the exploit of IT. Global, software system choices, e-commerce, strategy and IS initiatives, and ethical, social and political, are only some of the subjects that raise a great deal of issues. However, there are many options to be considered for the use of IT and most of the matters can be resolved.CONCLUSION To conclude, a brie f observation of the background of ASOS.com has been given. The five selected MIS topics have been examined and the occurring issues have been analyzed. Moreover, a discussion of whether each described issue is a problem or not for ASOS.com has been presented. Finally, my reflective thoughts have been outlined, in the reflective paragraph.Last of all, mentioning that in the 21st century we find ourselves living in the age of computerization, is essential. There is plenty room for future development of IT and IS. Information and Communication Technologies for Development, for example, refers to the application of Information and Communication Technologies within the field of socioeconomic development or international development and its concept is intimately associated with applications in the developing nations. It is concerned with the direct application of IT approaches to poverty reduction. Information and communication technologies can be applied either in a direct (their use di rectly benefits the disadvantaged population) or in an indirect find (facilitates the improvement of general socio-economic conditions). In many indigent regions of the world, legislative and political measures are required to facilitate or enable application of information and communication technologies.References Andrews, W. (1998) At Far Too Many Sites Buyer Be Lost Applies, Internet World, Vol. 98, Issue 6 Henry, C. and Lucas, Jr. (2000) Information engineering for Management, McGraw-Hill, 7th edition, Ch. 15-17 Khan, K. M. (2008) Managing Web Service Quality Measuring Outcomes and Effectiveness, Information intuition Reference, Ch. 1,3 Laudon, K. and Laudon, J. (2005) Management Information Systems Managing the Digital Firm, Prentice Hall, 9th edition, Ch. 5 Reynolds, Janice (2004) The Complete E-commerce al-Quran Design, Build and Maintain a Successful Web-Based Business, CMP, 2nd edition, p.76-79 Tilson, R., Dong, J., Martins, S. and Kieke, E. (1998) Factors and Principles alter the Usability of cardinal E-commerce Sites, Proc. Of the 4th Conference on Human Factors and the Web Turban, E., McLean, E., Wetherbe, J. (2001) Information Technology for Management Transforming Business in the Digital Economy, Wiley, 3rd edition, Ch. 1, 2 Udo, Godwin J. and Marquis, Gerald P. (2001/2), Factors Affecting E-commerce Web Site Effectiveness, Journal of Computer Information Systems, Vol. 42, Issue 2, 10-17 The ASOS.com web-site http//www.asos.com/

Loss of Brain Nerve Cells in Alzheimers Disease

Loss of Brain Nerve Cells in Alzheimers DiseaseFig-6 Showing nervous death due to sacking and oxidative accentuate.Adenosine Deaminase (adenosine deaminase), and Neuropsychiatric Disorders-Adenosine is a neuromodulator of consciousness function that is uniquely positioned to integrate excitatory and inhibitory neurotransmission and neuroprotective actions in morbid develops. The down the stairsstanding of adenosine production and throw overboard in the brain is therefore of central importance and has been extensively studied (adenosine deaminase-8). Adenosine metabolic process in the brain is precise important, and its dysregulation has been implicated in pathophysiology of several neuropsychiatric disorders, since it modulates the release of several neurotransmitters much(prenominal)(prenominal) as glutamate, dopamine, serotonin and acetylcholine, decreases neuronal natural action by pos-synaptic hyperpolarization and inhibits dopaminergic activity. Adenosine deaminase p articipates in purine metamorphosis by changeing adenosine into inosine (adenosine deaminase-7). (The production and metamorphosis of adenosine is given in the Fig.7)Adenosine deaminase (adenosine deaminase, adenosine aminohydrolase, EC 3.5.4.4), an enzyme elusive in the metabolism of purine nucleosides, catalyses the irreversible hydrolytic deamination of adenosine (Ado) and 2-deoxyadenosine (2-dAdo) to inosine and 2- deoxyinosine, respectively. The enzyme is widely distri thated in vertebrate tissues and plays a critical role in a chassis of physiological bodys. In nature, several iso wee-wees of ADA ar know that differ by molecular mass, kinetic properties and tissue distribution (ADA-2).It plays a role in the development and functioning of T lymphomonocytes. Levels of this enzyme increase during the mitogenic and antigenic result of lymphocytes, whereas ADA inhibitors limited the blastogenesis of lymphocytes thus, ADA levels argon higher in T kiosks than in B lymphocy tes. ADA was previously recognized as a cytosolic enzyme however, it is currently know to be present at the surfaces of cells, in particular T lymphocytes, to interact with some membrane proteins, including CD-26/DPP IV, and is considered an ecto-enzyme. This co-localization of DPP IV/CD-26 and ADA at T cells is important for the activation of T cells because the interaction of ADA and CD-26 at the T cells results in co-stimulatory signs responsible for the activation of the T cell receptor (ada ).Long considered to be an immune-privileged website because of the presence of the blood-brain-barrier (BBB) and the lack of a lymphatic administration, it is now well-established that the brain is fully capable of mounting rabble-rousing responses in response to invading pathogens, trauma, or ischemic events (G-17).Fig. 7 Pathways of adenosine production, metabolism and transport, with indications of the sites of action of various enzyme inhibitors. Abbreviations argon as fol humbles ADA , adenosine deaminase AK, adenosine kinase AOPCP, a,b-methylene ADP DCF, deoxycoformycin EHNA, erythro-9-(2-hydroxy-3-nonyl)adenosine es, equilibrativesensitive nucleoside transporters ei, equilibrative- insensitive nucleoside transporters 5-IT, 5-iodotubercidin NBMPR, nitrobenzylthioinosine PDE, dwell phosphodiesterase SAH, S-adenosyl homocysteine.Activation of oligodendrocytes results in secretion of inflammatory molecules, such as nitrous oxide (NO), cytokines, and prostaglandins and mostnotably in upregulation of several chondroitin sulfate proteoglycans, including NG2, which contributes to the growth-inhibitory environment that prevents conversion of axons in the injured CNS. In summary, in acute situations and when short lived, neuro-inflammatory mechanisms loosely limit injury and promote healing however, when neuro-inflammation becomes chronic it can reproach viable host tissue, resulting in compromised neuronal survival and cognitive impairment. For these reasons, infla mmation in the CNS has been appropriately described as a two-edged leaf blade (G-17).Again Hcy activates cytokines and pro-inflammatory molecules, such as IL-1beta, IL-6, IL-12, IL-18, IL- 1 receptor antagonist, C-reactive protein, estimation molecules (P-selectin, E-selectin, ICAM-1), and metalloproteinases (MMP-9). In addition, Hcy up-regulates reactive oxygen species, leading to activation of NF-kappa B, the pro-inflammatory thermonuclear regulatory molecule (G-3).On the new(prenominal) hand, neuropsychiatric disorders pay off been shown to be accompanied with some immune-inflammatory alterations. In this regard in order to experience a contribution to the understanding of the ongoing immune disturbance in neuropsychiatric disorders, serum ADA activity was determined in neuropsychiatric patients and comp ared with healthy go throughs.Intracellular and extracellular levels of adenosine are tightly controlled by particularized nucleoside transporters and several important e nzymes, which include adenosine deaminase (ADA) and 5-nucleotidase (5-NT) (ADA-4).ADA activity is know to be increased in inflammatory diseases characterized by T-cell activation and proliferation. Therefore, ADA is considered a marker of T-cell activation. In addition, overproduction of reactive oxygen species (ROS) including hydrogen bleach (H2O2), superoxide anion (O-_ 2) nitric oxide (NO-) and singlet oxygen (1O2) creates a condition known as oxidative stress, resulting in the amplification of the inflammatory response (ADA-6). Studies related to ADA levels in neuropsychiatric patients are virtually non-existent.ADA and schizophreniaAdenosine whitethorn play a role in the pathophysiology of schizophrenia, since it modulates the release of several neurotransmitters such as glutamate, dopamine, serotonin etc.Dutra GD et al (2009) showed that decreased ADA activity in schizophrenic patients than in control submarinejects (ADA-7).Brunstein MG et al (2007) reported that the schizo phrenic patients treated either with characteristic antipsychotics or clozapine showed increased serum ADA activity compared to controls (ada-b sub 14).ADA and DepressionElgun et al (1999b) reported that decrease ADA activity in patients with depression compared with controls, might reflect the impaired immune system in depression (A sub).Mackiewicz et al (2006) showed that ADA levels did not change with progress in rats (A sub).Herken H et al (2007) showed that ADA levels of the patients were significantly higher than the controls (abstract ref).An increase body of evidence implicates both brain inflammation and oxidative stress in the pathogenesis of Alzheimers disease (A-9). Inflammation is a cause, contributor, or secondary phenomenon in the disorder inflammatory pathways are altered in the periphery in AD, together with evidence that increased peripheral inflammation leads to more neurodegeneration and accelerate disease progression in animal models.Antioxidants defense- worl dly concern have evolved a highly complicated antioxidant defense system to combat the negatively charged effects of free basiss. Under physiological conditions, overproduction of ROS and RNS and their neutralization is prevented by the activity of endogenous anti-oxidative defense system (AOS). Antioxidants are a ample group of compounds which constitute the first line of defense against free stalk damage thus are essential for maintaining optimum health and well-being. They are protective agents, capable of stabilizing or deactivating free radicals before they ardour cells. Being beneficial compounds, they control free radical formation course and help organisms to deal with oxidative stress caused by free radicals (antiox 4) (Fig. 8).Antioxidant system encloses enzymes like superoxide dismutase catalase, glutathione peroxidase, and other antioxidant-regenerating enzymes such as gluthatione reductase dehydroascorbate reductase and glucose-6 phosphate dehydrogenase, that maint ains trim back NADPH hydrophilic scavengers like urate, ascorbate, gluthatione, flavonoids lipophilic scavengers, like tocopherols, carotenoids and ubiquinone. The great majority of antioxidants are supplied with the diet and includes polyphenols, lipoic and ascorbic acid, carotenoids, lycopene, quercetine, genstein, ellagic acid, ubiquinone and indole-3 carbinole. In fact, in the biological systems, the normal processes of oxidisation produces highly reactive free radicals and each of this administered compounds is involved in the physiological redox balance preventing damage to the tissues (antioxi 3).Enzymatic AntioxidantsAn important part of the intracellular antioxidant defense systems are antioxidant enzymes such as superoxide dismutase, catalase and peroxidases.Superoxide dismutase ( greensward) sward is found abundantly in many organisms, from microorganisms to plant and animals, since superoxide radicals (O2) are toxic to living cells, oxidizing and degrading biologically important molecules, such as lipides and proteins. The role of SOD is to protect aerobic cells against O2 action. It catalyzes O2 dismutation reaction into H2O2 and O2. There are three known types of SOD two copper-zinc containing SOD (CuZn-SOD), one in cytosol and one bound to the vascular endothelium ( excessively called extracellular SOD (ECSOD)) and a manganese containing SOD (MnSOD), which is localized in the mitochondrial matrix (antio-4). This enzyme specifically catalyzes the dismutation of O2 anion into H2O2 and O2 in a pH-independent medium (59.5). Manganese SOD is the mitochondrial form of this dismutase. Its active site contains manganese and reduces the O2 generated during the ETC. The amount of MnSOD inside the cell varies according to the number of mitochondria found in each cell type. This enzyme has antitumor activity. Extracellular SOD also contains copper and zinc in its structure and is the main extracellular SOD. It is synthesized inside the cells and secreted into the extracellular matrix (G-66, G-71, SOD-1).Fig. 8- Mechanism of action of antioxidantsCatalase (CAT)Catalase is an enzyme that reacts very efficaciously with H2O2 to form water and molecular oxygen and with H donors (methanol, ethanol, formic acid, or phenols) with peroxidase activity. Catalase protects cells against H2O2 generated inside them. Although CAT is not essential to some cell types under normal conditions, it has an important role in the acquisition of tolerance to ONS in cellular adaptive response (G-10).Glutathione peroxidase (GPx) and Glutathione ReductaseGPx is an enzyme that contains a single selenocysteine (Sec) residue in each of four identical subunits, which are essential to the enzymes activity. Humans have four different GPx types (1) a classic cytosolic form (2) a membrane-associated GPx phospholipids, (3) another cytoplasmic enzyme, gastrointestinal GPx and (4) an extracellular type. All GPx enzymes are known to add two electrons to reduce peroxides by selenols forming (Se-OH). GPx antioxidant properties allow them to eliminate peroxides as potential substrates for Fentons reaction. Glutathione peroxidase works together with glutathione tripeptide (GSH), which is present in cells in high (micromolar) tightnesss. The substrate for the GPx catalytic reaction is H2O2 or organic peroxide ROOH. Glutathione peroxidase catalyzes hydroperoxide reduction using GSH, thus protecting mammalian cells against oxidative damage. Glutathione metabolism is one of the most important antioxidant defense mechanisms (G-10). Together with classic H2O2-removing enzymes (CAT and GSH-Px), the enzyme thioredoxin reductase (TrxR) is a seleno-flavoprotein which forms the thioredoxin system together with the protein thioredoxin (Trx) and NADPH. This is an effective system to reduce proteins in disulfide form and it also participates actively in the remotion of H2O2 and other peroxides (G-57).4) Thioredoxin reductase (TrxR)TrxR catalyzes the reduction of Trx especially, but in humans it can also reduce other substrates, such as vitamin C. This reductase also catalyzes the reduction of disulfide proteins and it is involved in countless zippy processes, such as DNA synthesis and the regulation of apoptosis. Additionally, this system also donates electrons during DNA synthesis, and NADPH and human TrxR by themselves or with Trx are efficient electron donors to this human plasma peroxidase, which allows this enzyme to reduce hydroperoxides even when there are low levels of GSH available (G-52).There are three identified TrxR isoenzymes cytosolic (TrxR-1), mitochondrial (TrxR-2), and a triplet isoenzyme which has been isolated from the mitochondrion of rat testes (TrxR-3). TrxR-1 has wide substrate specificity, since it is responsible for simplification not only Trx but also hydroperozides, lipoic acid, ubiquinone, and dehydroascorbate. Thus, the Trx system is regarded as having a crucial role maintaining a cells redox state. It may also have a role in the system which regulates the brass of redox-sensitive genes through the activation of transcription factors (G-58).Non-enzymatic AntioxidantsVitamin E (-tocopherol)The lipid-soluble antioxidant vitamin E is localized in the cell membrane and has been targeted for its relation to atherosclerosis and vascular function. Decreased concentration vitamin E (-tocopherol) scavenges the chain-carrying peroxyl radicals rapidly and interrupts the chain propagation. During this reaction, vitamin E becomes a free radical called tocopheryl, which is less reactive than the lipid radical and migrates to the surface of the membrane to be transformed again into tocopherol through the action of ascorbic acid (G-72) (Fig-9). However, in elevated concentrations the tocopheryl radical may act as pro-oxidant. On the other hand, -carotene is a hydrophilic precursor of vitamin A and large concentrations accumulate in the membranes of certain tissues. Its antioxidant activity is related to the removal of O2 and free radicals formed during lipid peroxidation. This activity is due to its conjugated double-bonded structure that can dislocate unrivaled electrons, which enables -carotene to physically quench singlet oxygen without degradation (G-65).Vitamin C (ascorbic acid)Vitamin C is a hydrosoluble antioxidant, which facilitates its diffusion into intra- and extracellular matrices. Its antioxidant potential is related to direct removal of O2 and HO. Furthermore, it contributes to regenerating oxidized vitamin E however, vitamin C also has pro-oxidant activity. It may be the one compound, in addition to HO, that can convert Fe3+ into Fe2+, which then reacts with H2O2 to form OH. Vitamin C is a water-soluble vitamin that participates in a large number of cell functions (antio 5). All

Women And The Criminal Justice System

Wo workforce And The Criminal Justice SystemThe aim of this work is to regulate the place factors such(prenominal) as gender, social class, familial structure and foregoing victimisation take up in the awarding of rightness to the young-bearing(prenominal) wrongdoer. It was found that the savage judge dodging has traditionally been more lenient to the distaff offender based on two factors gender and class and family structure. However, the twist judge agreement finds itself in a legal and moral bind when it comes to prior victimization of the offender, and in differentiating amidst true victimization leading to a violent crime and the misrepresentation of such a previous assert by the support attorney. These findings should give an overall accord of the criminal rightness dodging with regards to female offenders and should form a framework within which such inequalities and discrepancies can be discussed.IntroductionTo better understand the criminal offender, it is prerequisite to understand the usage the backgrounds of the offenders play in their path towards crime. The percentage of female offenders has increased in the recent past, and sociologists, criminal experts and the judiciary set about grappled with the anathemise statistics. Various theories have been put forth to better understand the aim bunk, class, family structure and victimization of the female offender have to play in the rise in crimes by the female gender. musical composition a swarm of work had gone into research into these themes individually, a deeper understanding of all these factors and the role they play in the treatment of women by the criminal justice arranging the Great Compromiser to be analyzed. This essay aims to explain these factors and the role the criminal justice system has to play in offering justice, and support to the female offender.The criminal justice system and the female offenderAccording to sentencing statistics, nearly a third of wo men decryd for indictable offences in 2000 received a community sentence compared with just under a quarter of men . It can be seen that the criminal justice system has traditionally been lenient on the female offender. In delivering justice, the background of the suspect, the role factors outside the purview of the crime that have contri exclusivelyed to the psycho- fond development of the defendant are considered. However, various social and developmental factors as well as contribute to the low rates of serious crimes by women . While men are not socially connected and do not traditionally worry about children, women are bound to their home and hearth and frankincense desist from violent crimes. This difference is important to the jury, who consider previous crimes and overdue history when considering their judicial stance on the offender. Thus, women tend to have little severe judicial outcomes in the criminal justice system.The role of break away and the female offenderAcc ording to Koons-Witt and Schram Two findings are notable in terms of offend differences among females (a) race condition the relationship between offending group and victim(s) sex for robbery incidents and (b) race knowledgeable the relationship between offending group and the social distance between victim(s) and perpetrator(s) for aggravated assaults. The race of a person has a major role to play in the psycho-social development of the female offender. Racial characteristics such as social conditioning, parenting style, opportunities for learning and social development and interaction with other races have always vie a major role in the development of the offender. The criminal justice system has also traditionally, not only discriminated on the basis of gender, but also on the basis of race when awarding punishment for crimes, some(prenominal) non-lethal, and lethal. However, in the context of the female offender, unlike gender, race has not play a role in the severity of s entence for a crime, which remains a factor only for the male offender. The effect of race is conditioned by gender while the effect of gender is not conditioned by race. However, the harsher treatment of racial minorities by the criminal justice system is confined more to men, and the lenient treatment of women is found for minorities and whites alike . naval division and family structure and the female offenderWomen from the lower and working class have been a priori been excluded from the middle class in their expectations and prior social programming. While the women from the socially backward classes have never been placed in the well behaved girl category, dissimilar to their middle class counterparts, the criminal justice system considers the class of the women while deciding punishment for a crime. Like race, social conditioning of women offenders depends largely on their social class and existing family structure. brotherly scientists have long associated class and life-e xpectations of women in work, at home and in the social context. Delinquency and crime are also associated closely with the class of the offender. The criminal justice system has always considered the class of the female defendant to award punishment.Victimization and the female offenderVieraitis, Kovandzic and Britto state ..womens absolute situation is significantly correlated with female homicide victimization rates by interior(a) partners.. . The role of victimization leading to crime by the female offender cannot be overemphasized. In many cases, the victim turns criminal and the psychological set up of the crime of the woman are an important parameter in understanding the development of the criminal mindset. In many violent crimes committed by women, the victim is mostly the intimate partner who has, in the past, been violent towards their partner. This emanation of crime has a major role to play in the psychological and criminal development of the offender and makes it a tough case for the defending attorney and the criminal justice system. The fine delineation between preexistent conditions that lead to the crime and the absence thereof makes the awarding of justice operose and at time, morally challenging.ConclusionThe female offender is shaped by her gender, class, familial background and prior victimization. These factors have a major role to play in the psycho-social development of the offender. While the criminal justice system has traditionally been lenient to the female offender, the rise in crime by women has brought to light these differences and how justice is served to these offenders. A larger meta-analysis of the problem would yield sociological and psychological constructs that may help streamline the justice system to bring in and eliminate errors in jurisprudence.

Teaching English To Children With Learning Disabilities Education Essay

Teaching incline To Children With eruditeness Disabilities Education judgeIntroductionThe world we ar living in is at a lower placegoing major changes in a stunningly short amount of line. Ein truththing is moving, everything is changing, including in all told(prenominal) the central systems upon which all civilized societies of the world work. Education systems a one shot the globe ar to a fault in a constant reformation, trying to keep up with the soul and collective needs of the people, with the emergence of wise technologies and with the modernity in general.I realize decided to approach the issue of the baberen with accomplishment disabilities, commandment English to them, beca scotch consumption although the science and the world demand evolved rapidly in the last century, it seems that on that point atomic number 18 relieve aspects of the society that argon left alone or who are non condition sufficient credit, whitethornbe from ignorance, or perhaps f rom unknowing what to do.Why children with eruditeness difficulties? Beca role they represent a special(prenominal) category, which unluckily is frequently omitted, and children with this condition are often placed in drills where on that point is no qualified staff to help them grow personally and professionally as they should.For avoiding confusion over what really a training impediment means, in the first chapter of my paper I thought it will be unavoidable to clarify the concept, by offering the renderings of several specialists. In this equivalent chapter I will try to develop nigh theoretical concepts, such(prenominal)(prenominal) as the detailed description of the bound and of the behavior involved, all of which are essential for infering a student with nurture Disabilities.In the wink chapter I aim to describe the circumstances in which English has aim in recent decades the international language, and the importance and necessity of breeding a impertinent la nguage in the socio-politic and economic actual context, oddly for an ex-communist countrified in developing such the case of Romania is for over twenty years.In the third and final chapter, I will present the various methods and techniques of teaching English as a foreign language avail open for the children with learnedness difficulties, offering examples of several worksheets collected with the upkeep of several English teachers.A short inroad to discipline disabilitiesIn this first chapter of my paper I fate to analyze the issue of acquirement disabilities based on specialized educations, to win a brief insight into the history of the field research and an analytic thinking of the factors underlying these abnormalities, announcing the features of this job and close to of the ways by which a child with encyclopaedism difficulties passel be traced in time to be helped.Children crossways the world live their true life adventure once they appropriate going drill. F or each and every one of them it is a long awaited import and most are able to perfectly adapt the preparational environment. Still, thither are some children for whom inform proves to be a chore the children who are face with erudition disabilities (LD). They represent a special category which unfortunately is often overlooked.Historical overviewThe approach towards children with larn disabilities is not new at all. It exists heretofore from the invention of school, but it was not until the 1960s that it was exclamatory. The novelty in this area consists of the higher interest shown lately towards children with such a baulk and finding ways through out(p) they can be helped to over total the difficulties encountered musical composition studying, or even through their whole lifetime.The man initiating the term was Samuel Kirk (director of the federal official Office of Educations Division of Handicapped Children between 1963 and 1964 and founding director of the compri se for research on Exceptional Children at the University of Illinois) , term which is considered to design a neurological disorder affecting children of normal intelligence, physical intactness, emotional swellness and average motivation, but who are facing troubles in using real skills and achieving success at school and in everyday life.Defining the term proved to be a complex process and thus, over time umpteen variants pass on been proposed by doctors, teachers and early(a) specialists of the field.In the first interlingual rendition of his research concerning the education of exceptional children in 1962, Kirk exitd the following definitionA learning balk refers to a retardation disorder, or delayed increment in one or more than of the process of speech, language, reading, musical composition, arithmetical, or separate school subject resulting from a mental handicap caused by a possible cerebral dysfunction and/ or emotional or behavioral collapseions. It is n ot the result of mental retardation, sensory deprivation, or cultural and instructional factors. (Kirk 263)The definition and the term given by Kirk to design the disorder were straightaway embraced by the parents in the first national conference on the subject, endure in the same year because it made it clear that there is a great difference between the mental issue and the learning one. The definition of Kirk similarly provided a solid foundation for further research and definitions in the field.According to Turkington and Harris most definitions suggest that learning disabilities are permanent, affect a range of language and mathematics functions, and are caused in part from problems inwardly the central nervous system, as stipulated by the Interagency Committee on Learning Disabilities, an organization formed by 12 agencies within the federal gouvernment in USA in 1987Learning disabilities is a generic term that refers to a heterogenous group of disorders manifested by sign ifi bevel difficulties in the acquisition and use of listening skills, speaking, reading, piece of music, reasoning, or mathematical abilities, or of social skills. These disorders are inbred to the individual and presumed to be due to the central nervous system dysfunction. however though a learning disability may occur concomitantly with variant handicapping conditions,, a learning disability is not the direct result of those conditions or influences. (ICLD 222)Nowadays, it seems that the most widely used definition is the one included in the Individuals with Disabilities Education Act from 2004 (Flanagan, Alfonso), which unlike most definitions, it refers to a ad hoc learning disabilityThe term particular learning disability means a disorder in one or more of the basic psychological process involved in soul or using language, utter or pen, which may manifest itself in the imperfect ability to listen, think, speak, read, spell, or do mathematical calculations. Such a ter m includes such conditions as perceptual disabilities, brain injury, minimal brain dysfunction, dyslexia, and developmental aphasia. Such a term does not include a learning problem that is in the first place the result of visual, hearing, or motor disabilities of mental retardation of emotional disturbance or of an environmental, cultural, or economic disadvantage. (IDEA, 2004, 602.30, Definitions)The number of students who are in such a situation is much higher than one energy think. In England for example 2% of the population has a learning disability consort to the British Institute of Learning disabilities, which withal mentions the fact that the term learning difficulty is preferred to learning disability, because the society we live in is virulent and often the issue of learning difficulties is misinterpreted and identified with mental problems. Although a learning disability can often accompany such a problem, it is not a rule as specified in the definitions given by K irk or stated in the IDEA.The distinction between the two price can be seen rather at a cultural train (Americans prefer using disability and Europeans difficulty) rather to the specificity of the problemLearning disability- is a general term that refers to individuals who find it harder to learn, understand and communicate. Other terms that are used to describe an individuals situation include complex needs or high support needs. Learning difficulty -is often used in educational causetings and refers to individuals who sport specific problems. Children and late people requiring special education needs are often set forth as having a learning difficulty. passim the world, learning disabilities affect at least 1 in 10 children. But nowadays a learning disability isnt considered any longer a handicap. People have learned to accept those with such conditions, and the personas from the worldly concern life had a great contribution. Apart from the classic examples of Albert Einste in who was ineffective to speak to the age of three, or the great Demostene who was a powerful normal speaker in the ancient times, but who in his youth faced serious problems of stammering, there are also modern public figures who bed freely that at a certain moment in their lives have been confronted with such a malady, such as actor Tom Cruise, singer Cher or director Steven Spielberg.Causes of learning disabilitiesThe exact causes leading to these types of disabilities have not been clearly stated by specialists in their research. However, some reference was found for both parents and for teachers I order to use them in diagnosing children with LD. in that location are several factors that could possibly be blamed for such a disorder. Among these, the most important to remember are genetic factors, organic factors and environmental factors.Genetic factorsEvidence has shown that learning problems run in families. The odds that a child is learning- change are much higher when the in the family was previously inform at least one such case.There are maternal(p) factors such as the use of drugs, alcohol or tobacco during maternalism that have negative effects it is well-known that m others who smoke during pregnancy for example, are more likely to bind small babies, who are at a higher risk for learning disabilities poor prenatal medical divvy up and nutrition and prenatal injury or delivery complications can also be responsible.Organic factorsOrganic factors refer to dysfunctions that may appear in the central nervous system and damage the brain known as Minimal Brain Dysfunctions.Environmental factorsThere are several factors in the childs environment thought to affect his abilities of learning, such as nutritional deficiencies, unsatisfactory learning experience or environmental toxins such as mercury or dioxins released into the childs body within his first year of life.For example, in economic deprived families there exist the possibility the chi ld is never given the opportunity to go to school, and so he is a stranger to the land of linguistic and cognitive activities. Unfortunately, such cases are becoming more and more common, especially in poor or developing countries.When it comes to the experience achieved in schools, researchers agree that poor quality teaching in schools may also cause a learning disability. There are cases when the use of unbefitting materials or a teaching style that does not endure the disciple enough time to acquire basic skills, moving too lush can contribute to the unsuccessful activity of the student.There are many cases when students are labeled unconsciously by their teachers or peers as be lazy or stupid, but in fact their besides problem is that their brains are designed to process nurture differently. Myrna Orenstein thinks these children are smart but stuck.So far there no treatment has been found to recruit this condition, but children can be helped to learn successfully with the appropriate support from both parents but especially from teachers. However, it is necessary for a learning alter child to be discovered in time.How do we recognize a learning disabled child?Because types of LD vary from child to child, so do the symptoms. Yet, there are some peculiarities in each case which can be very useful to the parents in the process of laying this disorder, because after all they are usually the ones who first noticed abnormalities in their children.According to Siegel, there are some gestures and moves that a child should be able to do in the first years of life, upon which the pediatricians agreeA one-year-old should be able to reach for objects, roll over, stand with some support, follow objects, laugh, respond to no, and use a crayon. By the age of two, a child should respond to other children, walk, use some spoken communication, recognize familiar persons, point, and understand some mere(a) shapes. A three-year-old should be able to move easy and go up stairs, be understood when speaking, use scissors, and draw pictures. By the age of four, a child should be able to catch a ball, copy shapes, count, identify some colors, dress without help, and play appropriate with peers. (Siegel,28)The first signs that parents and educators should be have-to doe with of are1. Children often prefer to get isolated, they are shy, insecure, avoid vie with other children or sharing things.2. The child has difficulties understanding and follows different instruction manual or memory issues, such as not remembering what he is saying.3. He/She has difficulty distinguishing the left from the right, in identifying words or has an emphasized tendency to reverse letters, words, or metrical composition.4. He/ She lack coordination while walking, in sports or much easier activities such as holding a draw in the hand or tying his/her shoe lace.5. Often, the child let ons to understand the concept of time, is confused regarding yesterday, today and tomorrow.Obviously, the early the disorder is discovered, the better for the child, because we all know it is better preventing than remediating further effects. But if the child has already entered school without being diagnosed with a LD, then the signs should be more obvious for those environ him because he usually draw attention to himself1. He/she might get confused and wander homework, school books and other things.2. The appearance of disruptiveness when in school- some LD children continuously bother, distract or in some way disrupt others-even the entire class. Their behaviour differ- some get eng develop in some type of physical contact which disturbs classmates, while others make faces, talk or laugh at inappropriate times.(Blanton 29)3. The child might have difficulties compensable attention or staying focused, in process, understanding, and expressing information through language.(Siegel 29)4. He/ She might have trouble copying or getting ideas onto paper.5. He/ she isnt very skilful, but it is usually creative in his/ her own way, and it is considered to be a constant source of amazement and delight by their teachers.Although at a first view it may seem a minor problem, the misdiagnosing of a LD child, or worse, ignoring his condition can lead to catastrophic effects afterward in his teenager or adult life.There are statistics which showed that modern delinquency can be easily associated with learning issues. Also, the child that is not being properly treated and helped and considered to be a laisser faire at school, may later abuse drugs or alcohol to pass more easily over the issue.When the world is as black as theirs is, anything that will allow a few hours of pleasure is welcomed. Suicide of course, is the ultimate out. But its rare. (Stevens 59) test for learning disabilitiesMany specialists refuse to test preschoolers for such condition, considering that they should first come into contact with the school environment and achieve so me sort of results, and alone after this basic steps they can further determine if a child needs therapy or not.Others, on the other hand, say otherwise, the statistics display that a cleanse and careful testing may have an truth of 82% to 95% in determining whether a child aged five or fewer is transaction with LD. On the other hand, those who run from severe Attention Deficit Disorder, commonly associated with a specific learning disability can be more easily recognized even before starting kindergarten.Indeed, it is difficult to determine if a child under school age is learning-disabled. What is certainly though is the fact that no learning- disabled child should be ignored and that he should be given the necessary support beginning his early days of school.According to New and Cochran, some other important factor standing in the way of the diagnosis of LD in children is the fact that learning problems or developmental delays can be precursors of other cognitive, behavioral , sensory, or developmental disorders, not just a learning disability.(New, Cochran,481)In order to diagnose children with LD there have been conceived a series of operation tests meant to verify the intellectual and practical skills of the children.An achievement test represents a order measure of knowledge, information, or procedural learning which may asses general academician areas such as reading, writing, or mathematics, used by school systems to provide a standard measure of individual student performance, and to provide an come measure of performance that enables school systems to evaluate their effectiveness. Achievement testes are also used as part of the diagnosis assessment of individuals to determine whether they have a learning disability and qualify for special education services. (Turkington and Harris 4)Types of specific learning disabilitiesThere are several types of Learning Disabilities that prevent young students to lead a normal life both at school and outs ide, which may be related to the organization, storage and subsequent description of the information or knowledge gathered in the classroom.1. Dyslexia is the first general term used to describe various learning problems. Eventually, these problems were subdivided and categorized to describe different learning disabilities. Because of this matter, Davis and Braun referred to dyslexia as the Mother of Learning Disabilities. Nowadays, the term designs only the disability related to reading.Characteristics of dyslexic studentsThe main problem of a dyslexic is that he is facing troubles reading words fluentlyDyslexics are more curious than average studentsStudents may find it easier to think mainly in pictures preferably of wordsMost dyslexics have a vivid visual modalityDyslexics are highly intuitive.Famous Dyslexics Hans Christian Andersen, Winston Churchill, Leonardo da Vinci, Jay Leno.2. Dyscalculia refers to problems of arithmetic and math nature, which are considered to be ca used by a visual perceptual deficit.Characteristics of students with dyscalculiaAt an early age they have problems organizing things logically, such as separating round objects from square onesThey have difficulties when learning to count or align numbersThey often have problems recognizing printed numbersThey have persistent issues in learning number facts such as multiplication tables or doing even the simplest numeral tasksThey have difficulties dealing with time and money notions.3. Dysgraphia is the type of learning disability manifested through a writing disorder resulting in illegibility and of which cause is still unknown to this time.Acccording to Maria Chivers, there are two types of dysgraphiaa. Phonological dysgraphia- writing word as a pure sound spelling which is anomalous (especially seen on language learners).b. Visual dysgraphia- writing words, which are correctly spelt apart from some letters being reversed (ex brink instead of drink).Characteristics of students who are facing dysgraphiaAt an early age they avoid writing and drawingThey have trouble shaping the lettersIt can be observed an inconsistent spacing between their letters or wordsThey often mixt cursive and print writingThey pronounce words out loud while writing.4. Dyspraxia also known as the sensory integration disorder, is specific to students who have problems with motor coordination.Characteristics of students with dyspraxiaYoung learners may have problems with woof up small items during a sport class they may come to pass over for no apparent reasonThey have problems following instructions, reading mapsThey can change hand very often when writing because they are confused about whether to use their right or leftThey have problems telling the time.5. Central auditory processing disorder- consists of a difficulty processing and remembering language-related tasks.Characteristics of studentsThey are unable to take notes in classThey have difficulties in listening instruction s and thus doing what they are being askedThey cant concentrate when someone is talking to follow the words in their correct orderThey face great troubles when trying to learn a foreign language.6. Non-verbal learning disordersThe students who fall in this category are usually having troubles understanding nonverbal cues as body language or the association of pictures with words. They normally lack coordination, and thus, are being very clumsy.7. Visual perceptual/ visual motor deficit- students have problems copying accurately, they complain about eye itching, they endeavor with cutting things.8. Language disorders, also referred to as aphasia or dysphasia are described as problems of students who are having troubles understanding and using spoken or written language.Language disorders represent the most common type of learning disabilities.Characteristics of students with a language-based disabilityThey have troubles expressing their ideas clearlyThey may have problems learning t he alphabet, new vocabulary and understanding questionsThey have difficulties writing from dictation if the teachers lips cannot be seen. every of the above mentioned learning disabilities can be also included in the category of students dealing with memory disorders.Most of the characteristics of these students can be also found among the description of the others disabilities, such asInconsistency of the student when learning new informationThe inability of them to follow instructionsThe inability of delivering a correct message.The difficulty remembering what has been said or asked from them in class.ConclusionsThroughout my whole paper I aimed to draw attention on students with learning difficulties, trying to point out the key elements of this condition and what should be considered when dealing with such children. I have tried to address myself especially to future(a) teachers, the young generation, to whom is in their power to change the mentality and traditional methods so widely used in schools at the moment and which unfortunately fail to meet the students needs.To be able to cope with a student with Learning Disabilities, informing and training the parents and teachers is essential in order to provide solutions to specific issues related to the disability, targeting especially the teaching methods, behavior management strategies, as well as elements that can lead to the development of the collaboration between the school and the family, and, if required, the medical community.Along with behavioral intervention strategies, a coherent set of educational methods adapted to the condition are required. Also, it is recommended that this set of interventions and approaches to be O.K. up by individual and family counseling. In terms of action principles and solutions for teachers, especially for the beginners, I tried to devote an entire chapter, the final one, because it was actually my destination from the very beginning to help to the development of n ew techniques , able to bear the special needs of a child with learning difficulties.Works citedAndrews, J. E., Carnine, D. W., Coutinho, M. J., Edgar, E. B., Forness, S. R., Fuchs, L. S., et al.(2000). Bridging the special education divide. Remedial and particular Education, 21, 258-260, 267.Anderson, P. L., Meier-Hedde, R. (2001). Early case reports of dyslexia in the coupled States and Europe. Journal of Learning Disabilities, 34, 9-21.Anonymous. (1966). Minimal brain dysfunction in childrenwords and identification.Washington, DC U.S. Department of Health, Education, and Welfare.Association for Children with Learning Disabilities. (1986). ACLD definition Specific learning disabilities. ACLD Newsbriefs, 15-16.Barsch, R. H. (1967). Achieving perceptual-motor efficiency A space oriented approach to learning.Seattle, WA Special Child Publications.Lyon, G. R. (1995a). Toward a definition of dyslexia. Annals of Dyslexia, 45, 3-27.

The Relationship Between Individuals And Their Environment Social Work Essay

The Relationship Between Individuals And Their surround Social Work Essay soundlyness fancying is governed by iv principles which are the search for nearlyness wants, the stimulation of awareness for wellness getfully, get ahead awareness of health take and the influence on policy affect health (). Performing a holistic Health needs judging is a radical part of health visiting. The assessment process is iodine of the principles set out in the standards of proficiency for Specialist Community humanity Health Nurses (Nursing and Midwifery Council, 2004). Wright (1998) explains assessment of health needs is non a process of relying on personal experience or listening to clients, only is a systematic method of recognising health needs that are unmet and qualification changes by encouraging clients to meet these unmet needs.Using a mannikin or a framework is a systematic method of collecting discip railroad line al showtimeing a clear identification of problems or needs that need to be addressed. Such framework would in addition go on to guide the grooming and implementation of interventions required to meet the priorities for soulfulnessists and families.The framework interpreted from system one, baby Individuals needs assessment was used to perform an assessment. System one is a computer system used in the reservoirs practice area to take patient information. The Child one-on-one needs assessment has been developed from the manakin for the Assessment of Children in Need and their Families (DoH, 2000). This assessment framework supported the sacking in policy from one that focused on abuse and epoch-making harm to an assessment that adopted a broader view of minorrens needs and well- universe and identified impairment in terms of organic evolutional need (Cowley, 2008). harmonize has been gained to use the information. In accordance with the Nursing and Midwifery Council (NMC) The Code (2008), and to treasure confidentiality the na mes mentioned leave behind remain anonymous.This case study focuses on a breed, Jody who is a single evoke of three electric s gainrren. Due to the original demands on the Health Visiting team an antenatal contact visit had non been done. The Health Visiting team had been notified or so the birth of baby Harrington and therefore this was a planned family birth visit at 14 days.Health visitors admit core contacts they make with families as part of the Health Child Programme () and one them is an antenatal contact. This contact allows health visitors to realise a relationship with families and identify their need. Cowley (2008) domains visiting clients in their homes allow health professionals to identify a families area of need and then target work appropriately for their need. However research has demonstrated an antenatal contact is useful to in helping health professionals to identify the luck and resilience factors and create a therapeutic relationship with the cli ent which is necessary for the delivery of incoming services (Puura et al, 2002, Robert et al, 2002). Recommendations made recently provoke some(prenominal) preventative strategies need to be initiated in the antenatal period (Cowley, 2008).Coles et al () explains a graduation point for assessing individuals needs is to analyse whether the need is prescriptive which is defined by professionals, mat up need which is defined by the client, expressed need when a mat need become a demand and comparative needs when comparing to others around them and fall short of the established standard. W strokes (2007) explains it is important to select that needs will be thought of differently depending on who is macrocosm consulted.The assessment covered Economic Wellbeing Observations which included residence and renewing status as this passel conflict on a pincer. Jody spiritedness in a third floor council flat with three children, explained that she would deal more lieu as the flat had two bedrooms with a life sentence room she thought was not big enough. She explained the first bedroom was where she slept and would at one season switch baby Harrington with her in the room. The second bedroom which was small, had a billet bed and had no room to play in was shared by her eldest miss Rosie, eleven eld old and her younger daughter Ella quatern years old.The early life environment of a child shapes their life course and in turn merchantman have an substance on their health status over a course of time (Wills, 2007). Housing is an environment where children spend most of their time in the first few years of life therefore require equal to(predicate) post to live and sleep in. Good quality homes are important for the health and well-being of expectants as well as children (). A childs development and eudaimonia is shaped by factors such as family characteristics and the social, economic and physical environments in which they are raised. Poor ho use environments and overcrowding rouse have significant impact on childrens physical and mental health as well as emotional and cognitive development (Marsh et al, 1999).The House of Commons () explains overcrowding as having alike many people in one room or a room that is not an adequate size. Living in an overcrowded house has imbed to be link with ill health costing the NHS approximately 600 zillion a year (House of Parliament, 2011). Research suggests that poor housing and overcrowding can have a physical impact on a childs healthy development leading to increased risk of asthma, respiratory di nervous strain, anxiety as well as lead to accident and injury. Adequate sleep, nutrition and exercise besides contribute to a childs healthy physical functioning. Jody revealed she had visited the GP several propagation in the course of three months complaining that Ella had recurrent chest infections, and taken baby Harrington to the GP the day before as she tangle he was havin g stickyy breathing. Jody went on to say that the bedrooms were showing signs of damp and she had radicaled this to the housing company and was yet to come out review this. Jody saw the need for more housing space as an expressed need as she wanted more living space for herself and children to play in.The housing chronicle (2012) states the latest data found that the number of people living in overcrowded conditions continues to rise, as in 2009 2010 there were 630,000 in overcrowded housing which has risen to 655,000 in 2010 2011.The assessment revealed Jody had no extended family support as her family live in the south of England therefore are far to offer consistent support. Jody had locomote to the area over eight months ago following the breakdown of her relationship. The tyro had left the family overdue to drinking habits and since the family had struggled to make ends meet. Jody is in receipt of benefits and has not made many friends in the area.Parents are an essenti al part of a childs development and require support to enable them to grant the right environment. Jody appears to be socially isolated, Armstrong (2002) articulates social isolation can occur when there is a lack of family and peer support. With the lack of this support Jody had it indicated that she had a risk of ontogeny postnatal natural depression which can have detrimental effects on baby Harrington and her elder two daughters (Bee and Boyd, 2009). Honey, Bennett and Morga (2002) suggest research indicates postnatal depression can hinder a mothers ability to look after the child as well as affect the relationship between mother and child. This can cause problems in the childs emotional and cognitive development. Jody revealed since she had come home from the hospital she had a few teary moments but now felt fine, and also said she had postnatal depression following the birth of Ella. The author planned another visit which would be in a fortnight. This visit would include an assessment of postnatal depression which is carried out at four to six weeks in the practice area. A tool called the Edinburgh postnatal depression scale would be used, which is a ten question self report questionnaire designed by Cox, Holden and sagovsky (1987). (ADD STRENGTHS/ WEAKNESSES OF TOOL?) Meredith and Noller (2003) proposed maternal depression increases the risk of difficult attachment with the infant, developmental, social problems and may lead to suicide. queer Harrington being 14 days old was in the early puerility stage of lifespan development. During infancy a baby will change physically more than any other stage of their life (Bee et al, 2009). Early childhood is consequently the most crucial and vulnerable period of adept development during lifespan. The start of Baby Harringtons life will lay the foundations of good health and well being for later years. Therefore what happens during pregnancy and the early years of life lays the foundations for futurity devel opment of cognitive, language, physical, emotional, behavioural and social. Language and cognitive development is important during the first six months to three years of life. Sheridan (2008) proposes stimulation, warmth and positive parenting from parents during the early years is vital for the infant to gain maximum growth in the brain. The brain is increasingly sensitive to the influences of the external environment during early childhood. A child in an environment with increased stimulation will mean a child will learn and develop more. A child in an environment with less stimulating, emotionally and physically supportive, development of the brain is bear upon leading to cognitive, social and behavioural delays. High levels of stress during early childhood increases the risk of learning problems and stress related disease in to the adult years of life.The author found support to be a normative need for Jody, as a supported family environment is a fundamental component in raisin g a child. Jodys perception was that she was coping with the current situation and did not need support from family or friends as she felt she would be judged by them for not being a good parent to her children.Income was another factor identified through the assessment. The low income was a felt need for Jody as she said her parents were helping her financially. The author saw that having adequate income as a normative need in order to provide the children as well as Jody herself adequate healthy nutrition and a healthy future of well being. A newborn baby can increase expenditure on a family. This may cause Jody stress as it is an increase on feeding another child,Health in the UK is strongly associated with income and is a key determinant of health (Naidoo,). Naidoo () explains having a low income can affect children and adults health directly this can be due to not having enough to eat or enough to buy a healthy diet. Research suggests obesity in low income families to be linked (). Jody does not drive therefore finds it difficult at times to entranceway the larger supermarkets and is reliant on her local grocery store which can have limited choice and be more expensive. Mostyn et al (2011) suggest if money is an issue parents will feed children food they know they will be likely to eat to avoid wastage. Obesity in children can lead to health problems later in life such as heart disease and diabetes ().Living with a low income can also cause multiple stresses such as lead to parents worrying about their future well being of their children (). Children who live in families in exiguity with a low income are also at an increased risk of lower academic achievement (). Jody revealed that she would start looking for employment in the area. Naidoo et al () states individuals who are unemployed are at a greater risk of ill health and mortality.Neumans systems clay sculpture is a theory establish on the importance of an individuals wellness in relation to stress and their response to these stressors. Neuman defines stressors as any condition or situation that cause an alteration in the individuals normal state of wellness. The stressors are determined by variables poignant the client system physiological condition, developmental status, sociocultural influences, cognitive skills and spirituality. The model proposes a continuum of wellness to illness, with the focus on the individuals continuum being influenced by the fundamental interaction they may have with a variable and the stressors they encounter. Neuman identified environment that surrounds an individual at any given time can affect their well being.Environment and the individualClients are influenced by environmental factorsThe role of the health professional is to focus on the stressors and keep the stressors and the stress response from having a detrimental effect on the individual. This is done through three levels of streak. foremost primary prevention is protecting client w ellness through prevention and reducing the possibility of an encounter with a stressor as a answer to the stressor has not yet occurred. This is done by strengthening the individuals line of defence. alternate prevention is treating symptoms to stabilize the individuals system by strengthening the internal line of guard reducing the reaction to the stressor. Tertiary prevention focuses on educating an individual to prevent a reoccurrence of an stress response to the stressor through strengthening resistance to these stressors.Jodys environment was a stressor for her as it was affecting her and her children as they did not have enough space to live in and the children did not have space to play. According to neumans model this will affect jodys stability andThe absence of ill health and disease is not solely dependent on health. Robinson et al (1996) explains this as only one determinant of health. Health is the state of an individuals best well being (WHO,). There are wider det erminants of health. Factors such housing, having a riskless physical environment, lifestyle, health beliefs, cultural norms, education, socio economic factors employment, emotional and mental state of an individual affects health ().The author found the child assessment to be holistic. Assessing infant development holistically has never been so important (Cowley, 2008). Robinson (2010) purposes having this holistic surface of assessment allows an understanding of a child within the context of their family, company and culture in which they grow up in. Cowley et al () suggests that the framework should not be used as a checklist to assess needs. A needs assessment should include a client centred approach.The framework used for the holistic assessment did not consider the cultural beliefs of an individual or have space were their beliefs could be recorded. There were no prompts of what information was required if an individual had low income or housing that was not adequate.Apply neuman and weaknesses and strength of model Marmot?http//www.aifs.gov.au/institute/pubs/fm2011/fm88/fm88d.html