Biofuels And Bioenergy

Bio send aways And Bio heartinessIntroductionThe physical exertion of dodo fuel as a source of energy has aided the development of the human race for some familys. This technology has t turn out ensembleowed for galore(postnominal) proceedss such(prenominal)(prenominal) as electricity, transportation, manufacturing machinery etc. The world is faced with the complex frugal and environmental issues associated with energy employ that must be addressed if we be to maintain and improve our lifestyle. Our economy depends on low apostrophize energy. The idea of renewable energy has been around for quite some time but did not realise often attention in the main due to lower anoint colour p sifts over half a degree centigrade ago.However the time has now come when it can no longer be ignored as we enter a new level of consciousness about our fuel consumption and the lack of fossil fuels we concord including aw arness about the impact on the environmenti. The pressure to have cheaper alternative energy has rifle more important especially at a time where we are facing a planetary recession.As pressing as these frugal issues become, we are also faced with even greater environmental consequences if we do not change our energy use patterns. Looming in the background of everything is the mounting concern of century dioxide (CO2) build up and other so called greenhouse squanderes in the atmosphere, which trap the heat that usually radiates from the earth, and take a crap planetary mode changeii. in that respectfore clearly, developing alternatives to fuel should be one of the gameyest priorities of m each nations.With record oil prices, the future(a) of Biofuels made from biomass is of keen sake to the world. The global merchandise of Biofuels has increased from 4.8 billion gallons in the year 2000 to about 16.0 billion in the year 2007, but this still accounts for little than 3 portion of the global transportation fuel supplyiii.This literary w orks reviews the technology of biofuels, their drudgery, usage and impact on a global scale.What are Biofuels?A biofuel can be defined as fuel derived from biomass which is found in m each livelihood biological material. Living organisms and their metabolic byproducts such as manure have been successfully employ as biomasses.Biomethane,Biograin alcohol,BiodieselBiobutanolThese fuels can be burnt to piss heat and power, employ to run vehicles ( brazil-nut tree has the highest proportion of road vehicles intentional to run on biofuels which peaked at 90% in the 1980s) or powering fuel cells.The content by volume of a biofuel is a minimum of 80% biomass products.Biomass is a form of stored energy just analogous coal of petrol. The main advantage of biofuels compared with close other traditional fuel types is that this is a biodegradable technology, then it is comparatively harmless to the environment.A large amount of biofuels come from specifically grown agricultural result s such as sugar cane and corn. Another serviceable source is biodegradable by-products that come from industries, households and forestry e.g. timber and rice which can also be employ to generate biofuel.There is a growing interest in the field renewable energy technology. And this has resulted in inquiry periodly being carried out on projects such as the large scale utilization of micro algae as an energy source.Brief fib of BiofuelsThe initial use of biofuels was in the early days of the automobile industry. A German inventor cognise as Nikolaus August Otto came through with his invention of running the combustion engine using ethyl alcohol. Another past invention was the powering of diesel engines using peanut oil was by Rudolf Diesel, the German inventor. But unfortunately so far in the 19th century when crude oil became cheaper, cars began using fuels from oil which has led to where we are now.There is an increasingly importance in the use of biofuels as a replacement, now being considered by many countries such as the United Stated, by 2025 aim to replace 75% of the oil coming from the warmheartedness East.Over the last century, the world has become accustomed to petroleum based transportation fuels, lubricants and other useful products derived from fossil fuels. However the recent oil prices have been escalating ever since the seventies fuel crisis and the global climate has changing drastically. Perhaps the time has come to learn a lesson from history and adopt the idea of biofuels for the benefit of the living to save the planet instead of taking the easiest and cheapest way out, saving the planet for the next extensions to come. scale Studies and practices of BiofuelsWe leave alone now look at a some case studies where Biofuels have been successfully used and utilized.Case Study 1 A Lesson from BrazilThe worlds second largest ethanol program is based in Brazil and they are capitalizing on bountiful soybean supplies to spread out into bi odiesel. About 20 percent of the countrys fuel supply is obtained from the nations sugarcane crop which is processed into ethanol.Brazils policy program was changed to encourage the nations energy freedom and creating a substitute value added market for sugar producers. The following was set off in the 1970s right after the famous OPEC oil embargo. Sugarcane producer have been hale supported by the government which has spent billions to develop distilleries, build infrastructure and promote the turnout of pure ethanol and other transport fuelsiv.It was shown that while the costs were high, this program benefited by saving far more in outside exchange from the resulting reduced petroleum imports.Brazil in the mid to late mid-nineties pursed a less intrusive move towards the elimination of aspire subsidies and price settings for ethanol with deuce main elements.Which were a blend requirement (which is now about 25%) and tax incentives favouring the use of ethanol and its purchas e for flex-fuel vehicles.Today 80 percent automobiles produced in Brazil have flexible fuel capabilityvi, up from 30 percent in 2004. Ethanol is widely available to consumers at nearly all of Brazils 32,000 gas stations the consumers primarily have the choice between a 100-percent hydrous ethanol and a 25-percent ethanol-gasoline blend on the basis of congress pricesvii.Roughly 20 percent of current fuel use in Brazil is ethanol, but it depart be challenging to raise the share as Brazils fuel demands keep growing with the rest of the worldou.Brazil is a middle-income economy having a per capita energy consumption which is only 15 percent that of the United States and Canada. Unfortunately, the current biofuel production levels in Brazil are not much superior than they were in the late 1990s due to the limitations by the economy and environmentalist.Biofuels have however, come under serious attack recently dictum that it is eating into farmlands meant for fare production. And as a result last year the European Union support out from a commitment which would introduce a 10 percent compulsory quota of biofuels in all transportation by 2020viii.While admitting that biofuels are no silver bullet, the authorities in Brazil pick up and insist that biofuels are the best way forward for developing countriesix.A large expansion in ethanol production is underway in the United States, spurred by high oil prices and energy policiesThe production of ethanol is the U.S climbed to al close to 5 billion gallonsx in 2006, up nearly 1 billion gallons from 2005. regardless of the speed and degree of this increase, the industry has stepped up the speed of expansion, with production expected go as high as 10 billion gallons by 2009xi.Market conditions and policy factors are fueling the rising interest in ethanol. A rapid run-up of oil prices over the past several years has combine with provisions of the Energy Policy Act of 2005 and already existing Federal and State biofue l programs to provide economic incentives for an expansion of U.S. ethanol production.This increase in prices reflects rising global demand for crude oil resulting from weapons-grade world economic growth, including rapid manufacturing gains in China and India. Further growth in global economic activity leave behind continue to drive up world demand for oil, particularly in super energy-dependent economies in Asia. Although the increase in demand is likely to be partly offset by future oil discoveries, more new technologies for discovery and extracting oil, and constant expansion and enhancement in renewable energy, the oil prices are expected to remain high by historical standards.As a result of these inviolable incentives, the ethanol production capacity has increased over the last year as more production demonstrates have been built or are under construction. Once the constructions of the new plants are complete consort to the Renewable Fuel Program of the Energy Policy Act of 2005 renewable fuel use should touch on 7.5 billion gallons by year 2012xii.The vast expansion in biofuels production and use mandated by EISA impart require the development of new methods and equipment to collect, store, and pre-process biomass in a manner acceptable tobiorefineries. These activities, which constitute as much as 20% of the current cost of finished cellulosic ethanol, are comprised of four main elementsHarvesters collectors that remove feedstocks from cropland and out of forests.Storage facilities that support a steady supply of biomass to the biorefi nery, in a manner that prevents material spoilage.Preprocessing/ press equipment that transform feedstocks to the proper moisture content, bulk density, viscosity, and quality.Transportation of feedstocks from the field to the biorefinery.Case Study 3 Biofuels in Senegal JATROPHA PROGRAMIt all started in India when genus Jatropha Carcus-Honduras were carried in by Portuguese sailors a few hundred years ago. The y were planted around other valuable plantations as a fence because animals and insects were repelled remote from it. Meanwhile, Indian farmers found out that the nut contained oil which they used in their oil lamps. Over the years, these farmers bred the plant to have higher oil content as high as 40-50%. India has always been interested to produce biofuels however it had to come from non-food crops. The Biodiesel produced required certain characteristics for example it had to come from non-food crops and grown in non-prime agricultural land. Jatropha fulfilled these requirements as it is resistant to droughts, requiring minimum use of pesticides and fertilizers. Jatropha plants are very hardy and grow very fast producing seeds for extraction within a few months.The main objective of the program is to agree Senegals self-sufficiency in biodiesel by 2012 with the production of 1 190 000 000 litres of crude Jatropha oil. This production will represent 1 134 000 000 litres of refine d oil which can be used as biodiesel for vehicles as well as to generate powerxiii.It is also the aim of the program to accelerate the modernisation of the agricultural sector, to create 100,000 direct employment opportunities for the local population particularly in the rural areas where the cultivation of jatropha will be mostly undertaken.The successful implementation of the jatropha program will ensure the diversification of the cultivation of hard currency crops, reduce the energy bill of households in the country as well as its heavy colony on imported energy and improve the countrys international trade and balance of payment.Moreover, the program will hold towards the reduction of environmental pollution caused by vehicle engines and will also help alleviate scantness and inequality between rural and urban areas.BIOFUEL PRODUCTION TYPES SOURCESBiofuels can be classified in two ways, setoffly by the state at which the fuel exists in their congenital form which are mainl y gas, liquid or solid. And secondly by the sources they have been produced from and the technology used to produce them. In this literature review, biofuels have been classified according the second way.FIRST generation (food crops)First generation biofuels are derived from food crops such as starch, sugar and vegetable oil using conventional techniques discussed later on. Several types of first generation biofuels are discussed briefly below.BiodieselBiodiesel is probably the most common and most popular type of biofuel in the world because it also is the easiest to produce from ordinary vegetable oil. Biodiesel is produced very simply by combining any type of oil or biomass with methanol and sodium hydroxidexiv. It can be used on any diesel engine without any changes to it by mixing with mineral diesel as was described antecedent in the History of Biofuels section.Vegetable oilThese kinds of oil can be either used for provision purpose or even as fuel. The main fact that dete rmines the usage of this oil is the quality. The oil with sound quality is generally used for cooking purpose. Vegetable oil can even be used in most of the old diesel engines, but only in warm atmosphere. In most of the countries, vegetable oil is mainly used for the production of biodiesel.There has a been great interest shown by European countries and the USA, the graphs below show a rising trend of biodiesel production is USA and many countries of Europe.Biogas SyngasBiogas is produced from extreme materials by anaerobic digestion. Waste materials which are biodegradable can also produce biogas if they are federal official into anaerobic digestersxv. The resulting biomass can be used as fertiliser for agricultural usage. Biogas is rich in methane gas which can be recovered and used as burning fuel. Methane gas is also produced by the natural decay of garbage dumps over time. Another process to produce Syngas or biosyngas is by gasification of biomass into speed of light mono xide and hydrogen. Hydrogen can be recovered from syngas or the syngas can be converted to diesel fuel using Fischer-Tropsch processxvi.Bioalcohols (bioethanol)Enzymes and micro-organisms are used to produce alcohols through the process of fermentation of starches and sugarxvii. Ethanol being the most common of those bioalcohol as in bioethanol produced from sugar cane in Brazil. A significant amount of ethanol is also produced from sugar beets and corn by fermentation in other parts of the world.SECOND GENERATION (non food crops)Second generation of biofuels had been developed to use biomass left from the non-food parts of current crops such as stems, leaves and husks left behind after the important parts of the crop has been taken. It also includes biomass from non food crops such as Jatropha plant (which are toxic), switch grass and industrial waste such as woodwind instrument chips, skin and pulp from fruit pressings. This generation of biofuels is not cost competitive with exis ting fossil fuels, do not threaten food supplies and biodiversityxviii.THIRD GENERATION (agriculture)Third generation biofuels is obtained from algae and this is also called advance biofuel. Algae is easy to grow and it is a high-yielding feedstock for the production of biofuel as it produces 30 times more energy per acre of land than traditional crops such as corn or soybeanxix. They are biodegradable so it is environmentally friendly. Similar to obtaining the oil from vegetation, algae contains almost 40-50% oil which is squeezed out and the remaining biomass can be used as fertilizer or high protein animal feed. The oil from algae can be converted to biodiesel.FOURTH GENERATION (biodiesel to gasoline)Last but not least is fourth generation biofuels which is still undergoing research at the highest levels. The main aim is to convert biodiesel into gasoline similar to the one obtained from petroleum but it will be much cleaner with less harmful emissions. This is similar to how na tural gas or methane is converted to petrol. However there is much more study required in this part and will probably not be available in 10-20 years time.First generation feedstocks include corn for ethanol and soybeans for biodiesel. These feedstocks are currently in use and their yields have been increasing.Second generation feedstocks consist of the residues or left-overs from crop and forest harvests. They show much promise for near-term adoption with the development of cellulosic conversion technologies.Third generation feedstocks are crops whichrequire further RD to commercialize, such as perennial grasses, fast growing trees, and algae. They are designed exclusively for fuels production and are commonly referred to as energy crops. They represent a key long-term component to a sustainable biofuels industryxx.BIBLIOGRAPHYCharles E. Wyman (1996) Handbook on Bioethanol Production and Utilization, Taylor Francis Publishers, pg 1Intergovernmental Panel on Climate Change. 1990. J.T. Houghton, G.J.Jenkins, and J.J. Ephraums, eds. Climate Change-the IPCC scientific Assessment, Cambridge, United Kingdom Cambridge University Press.Amber Waves, November 2007, stack 5, Issue 5, William Coyle The Future of Biofuels A Global Perspective.Amber Waves, November 2007, Volume 5, Issue 5, William Coyle The Future of Biofuels A Global Perspective.Market Research Analyst, Worlds Ethanol Production Forecast 2008 2012 http//www.marketresearchanalyst.com/2008/01/26/world-ethanol-production-forecast-2008-2012/Flex-fuel Vehicles inBrazil http//alternativefuels.about.com/od/ethanol/a/ffvsbrazil.htmAmber Waves, November 2007, Volume 5, Issue 5, William Coyle The Future of Biofuels A Global Perspective. temper CHANGE Brazil Defends Biofuels, Claudia Ciobanu, http//ipsnews.net/news.asp?idnews=49597CLIMATE CHANGE Brazil Defends Biofuels, Claudia Ciobanu, http//ipsnews.net/news.asp?idnews=49597Green Car Congress, Energy, Technologies, Issues and Policies for Sustainable mobilit y http//www.greencarcongress.com/2007/08/us-ethanol-prod.htmlAmber Waves, family 2007, Volume 5, Issue 5, Paul. C. Westcot U.S. Ethanol Expansion Driving Changes Throughout the agriculture sector.Shurson, Jerry, Mindy Spiehs, Jennifer Wilson, and Mark Whitney. Value and use of new generation distillers dried grains with solubles in swine diets, Alltechs 19th International Feed Industry Symposium Proceedings, May 2003.Ministry of Agriculture, impudent orientation for the Agriculture Sector Policy, REVA Plan, Special Biofuels Program, March 2007, Biofuels in Senegal Jatropha Program 2007-2009.Biofuel constitution http//biofuel.org.uk/first-generation-biofuels.htmlBiofuel Organisation http//biofuel.org.uk/first-generation-biofuels.htmlLee S., Lee L., Encyclopedia of Chemical Processing, CRC Press (2005), Biofuels and Bioenergy pp123Biofuel Organisation http//biofuel.org.uk/first-generation-biofuels.htmlRenewableEnergy.com News Article Next generation of biofuels http//www.renewablee nergyworld.com/rea/news/story?id=49099Washington Post News Article http//www.washingtonpost.com/wp-dyn/content/article/2008/01/03/AR2008010303907.htmlUnited States discussion section of Agriculture, National Biofuels Action Plan, September 2008, Board Action Area 2 Feedstock production pg 5.

Reflection on Cultural Competencies

Reflection on Cultural CompetenciesJon TeegardinCaring for a multi cultural society is the name of the class I am taking this semester. It is only logical that part of learning slightly providing care to a patients of diverse ethnic and cultural backgrounds is learning about my own perceptions of culture. By honestly and openly completing a cultural dexterity checklist, I was able to identify my own strengths and shortcomings about culture. This paper will analyze the results of my checklist, analyze my thoughts and feelings about my responses, and identify ways I send away improve on my care of culturally diverse patients. analysis and summary of the assessment resultsThis assessment was completed by me, Jon Teegardin, RN. I currently work as an urgency room nurse at a local hospital. I potently agreed with 77% of the statements in the assessment, agreed with 16%, and chose neutral for the remaining 7% of the statements. in that respect were no statements that I disagreed or strongly disagreed with. The subjects with a neutral response included acceptability of the use of linguistic processs otherwise than position, participation in insusceptible comments or behaviors, and recognition of different face language dialects.Analysis of thoughts and feelings after taking assessmentMy sign impression of the assessment was that I was culturally competent and sensitive to culturally related differences among my patient population. As I looked closer at my responses though, I realized that I am less sensitive to non-English lectureers and that I am prone to making insensitive comments. After realizing this, I wanted to analyze why I have a neutral view about those who may not converse English and those who speak a different dialect of my native language.Being 45 years old, I can clear remember a time in this country when the English language was the only language employ by business and even the government. The United States Government still requires t hat naturalized citizens read, print, and speak Basic English (U.S. Citizenship and Immigration Services, n.d.). Television produced many shows that used racial and ethnic stereotypes as the basis for sitcoms. Shows like What a Country used language and cultural differences as the punchline for jokes set to a laugh track. Perfect Strangers went so far as to create a fictitious country of origin for the shows main character. This allowed the network to write scripts that utilized extreme stereotypical views of eastern Europeans without appearing to be offensive to the target audience of Americans (Amazon, 2014). This computer programming taught viewers that it was OK to laugh at those who spoke differently or those who had different traditions or values. We were taught that an emphasize was something to laugh at and imitate. I could cite even worse examples from the seventies. I really felt penitent when I thought about American Sign Language and deaf culture. I actually debated a previous instructor about deaf culture, based in part on the fact that American Sign Language is not just hand signals of English words or letters, but is actually a visual language of its own (Jay, 2008). I actually contradicted my own belief by close my definition of language. Not one of my finer moments.Areas of improvement needed after taking the assessmentThere are three areas of improvement that I identified by taking this assessment. Acceptability of the use of languages other than English, participation in insensitive comments or behaviors, and recognition of different English dialects.It is of the essence(p) to remember that magical spell a person may speak Basic English, they may be more comfortable oratory their native language. There are 31.8 million U.S. residents that speak a language other than English in their home, and of that number, 54% are Hispanic (Cultural diversity and language issues, 1994). Even though there is a elbow grease in this country away fro m the concept of the melting pot, it does not mean that people who choose to pursue here dont want to embrace American culture. Learning a new language is hard and that difficulty is magnified as we age. I have encountered many patients in the ER who speak little or no English, but their child speaks both languages fluently. It is insensitive to demand that everyone who comes here speak only my native language.Insensitive comments or behaviors dont need to be made in a negative manner to be hurtful. How many of us have spoken louder and slower to psyche who speaks limited English? We may be doing so in an attempt to be helpful, but do we stop and think about how patronizing or belittling that behavior may be? It is important that I model my behavior in a manner that is sensitive to a language rampart in a manner that is still respectful. Part of my assessment of a patient needs to plough communication barriers immediately and utilize my facilities language translation services e arlier in the patient encounter. cite of different English dialects should include geographic influences. I have to admit that initially I was feel at dialect as simply poor grammar, when it is much deeper than that. Southern English is just as correct as Midwestern English, even though substantial differences can be found in the way people from these two areas speak. One researcher identified 24 different dialects of American English (Wilson, 2013).Suggestions for improving the provision of transcultural healthcareIt is important that to let go of stereotypes or behaviors that were impressed on me at an early age. The first step towards modifying these behaviors is identifying them properly. The assessment is a good tool to identify areas that can be improved. It is also important to recognize that transcultural research, as presently conducted, may depict a view of behavior that encourages expectations of stereotypes among health practitioners and this view may inhibit rather tha n enhance individualized lend oneself (Price Cortis, 1999, p. 243). This means that it is important to remember that our learned cultural expectations may be suspect and this can be detrimental to the care that we provide to our patients. A provider cannot assume that just because they know the cultural aspects of a patient that they know the geographic influences on that patients culture as well.ReferencesAmazon. (2014). Perfect Strangers. Retrieved kinfolk 16, 2014, from http//www.imdb.com/title/tt0090501/Cultural diversity and language issues. (1994).The Journal of School Health,64(1), 41. Retrieved from http//search.proquest.com/docview/215683754?accountid=87314Jay, M. (2008). Deaf Culture. Retrieved September 16, 2014, from http//www.start-american-sign-language.com/deaf-culture.htmlPrice, K., Cortis, J. (1999). The way forth for transcultural nursing. Nurse Education Today,20(3), 233-243.U.S. Citizenship and Immigration Services. (n.d.). Learn About Naturalization. Retrie ved September 16, 2014, from http//www.uscis.gov/citizenship/learners/learn-about-naturalizationWilson, R. (2013, December 3). What Dialect Do You Speak? A Geographical Breakdown of American English (Posted 2013-12-03 010146). The Washington Post. Retrieved September 16, 2014, from http//www.highbeam.com/doc/1P2-35439884.html?

Effectiveness of Leech Therapy

Effectiveness of Leech TherapyIt has been estimated that there atomic number 18 about 60,000 miles or more race vessels within a human body where blood, gases and nutrients atomic number 18 being circulated. Any obstructer of these vessels will cause blood congestion at the site and thus give rise to respective(a) vascular diseases. For instance, a close up coronary artery will cause heart attacks, and a impede carotid artery will cause strokes. Other common examples are inflammatory reactions, haematomas, deep vein thrombosis, and so on. Hidurotherapy, also known as the leech therapy, is an ancient remedy now being bring round and evaluated scientifically, hoping that it could be a one cure for all these diseases and provide a overmuch more in cause(p) yet safer dole outment.So, how a leech can cure and is it really more effective over shortly used drugs in treating vascular congestion and related diseases?The mechanism behind hidurotherapy can be modify as such when a leech bites a target, the patient will not feel much painfulness because its spittle contains finical anaesthetics. It then starts its lively feeding by sucking the blood. At the corresponding time, the saliva which also contains various components that prevent the formation of blood clot at the wound and allow in it to flow continuously for hours even after the leech has been removed. This situation is known as liquid bleeding.I have classified the leech treatment into 3 common types based on these effects of saliva contents and their applications.Type 1 Hirudin as an anticoagulantIt has been recognised that the acute coronary syndromes involving the atherosclerotic plaques or thrombus has direct connection to the thrombin in the blood. Thrombin triggers thrombocyte aggregation and gives rise to fibrin clot formation. Intravenous heparin, aspirin, and anti-ischemic medications are the type treatments provided by hospitals. Hirudin appears to have more advantages when com pared to heparin. It can act indep discontinueently while heparin works indirectly with anti-thrombin III as its cofactor. As a result of this, heparin is not effective when it comes to the fibrin clot that already has thrombin bounded to it.In addition, platelet factor 4 or plasma proteins force neutralise the effect of heparin. Some patients might even develop thrombocytopenia, which affects 5 to 15 percent of the patient population. In such cases, hirudin is highly selective for thrombin and is not affected by peptides and enzymes in the blood. It binds with thrombin to form an inactive hirudin-thrombin complex and halts the variety of fibrinogen into insoluble fibrin. Another highlight of hirudin would be its stability as its form can run unchanged when it is removed from the body through urination.Overdosage of hirudin is very rare, if such cases really happen, there is no counterpoison because no antagonists for it have been found. This would be the disadvantage of hirudin but its usage remains safe as retentive as the doctors prescribe living leeches according to standard recommendations.In a research, patients with acute coronary syndromes were every which way given either intravenous heparin and hirudin placebo or hidurin and heparin placebo on a double blind basis. This led to the possibility of comparing the effect of hirudin and heparin in treating coronary syndromes and preventing deaths.The outcome results showed that hirudin had significantly fall the risk of death or myocardial infarction or reinfarction over hours of study compared to heparin.In dogged term, hirudin still displays significant advantage over heparin in reducing the risk of death or myocardial infarction or reinfarction.Type 2 Removal of blood via active feeding and peaceful bleedingDetached body interweaves or limbs can be reattached, transferred or transplanted through modern rehabilitative surgeries. Microsurgical techniques are being used to restore the blood vesse ls supplying blood and oxygen to the connecting tissues or limbs to alter their survival. However, often we see that after a complicated reconstructive surgery, venous congestion occurs at the connecting tissues collectible to the formation of blood clot after a venous outflow. Thus, the blood cannot be circulated and the tissue flourish will eventually die off and is lost if the congestion prolonged.It is then vital to remove dissipation blood accumulated at the site so that risk of cell death can be minimised. Moreover, it provides time for the ingrowth of new venous outflow from the surrounding normal tissues. Surgical revision is rarely workable or successful to fix the problem.When venous congestion threatens a tissue flap, live medicinal leeches (Hirudo medicinalis) are placed on the congested tissue to remove excess blood. The application of medicinal leeches to a congested tissue flap reportedly increases blood flow within congested tissue directly via active feeding an d indirectly by passive bleeding from the bite after the leech detaches. The continued passive procession of blood following leech detachment assists in the decongestion process. It is facilitated by the actions and interactions among different salivary secretions of the leech, and platelet aggregation inhibitors.Type 3 Effects of other substances in the leech salivaAs the leech saliva also contains anti-inflammatory and anaesthetics substances, the patient will feel no pain being bitten. This special effect attributes towards the treatment of diseases such as arthritis of the joint.Although arthritis belongs to immunological disorder, the inflammation around the joints causes pain to the patients. Therefore, leech therapy might be useful in soothing the pain suffered with the anti-inflammatory and anaesthetics substances. A study designed by researchers from Germanys Academic Teaching Hospital showed that one application of leeches to the area can reduce pain 60% for more than 60 days. Besides that, the results also showed that it is even more effective than Diclofenac. Diclofenac is a group of drugs that is unremarkably used to treat pain or inflammation caused by arthritis or ankylosing spondylitis by reducing the hormones create such symptoms.2There was also a previous leech therapy for knee degenerative arthritis that gave significant pain relief for over a week differences for function, stiffness, and total symptoms remained significant in favour of leech therapy until the end of study and for quality of life until day 28.Ann Intern Med. 2003 Nov 4139(9)724-30.Effectiveness of leech therapy in osteoarthritis of the knee a randomized,controlled trial.Michalsen A, Klotz S, Ldtke R, Moebus S, Spahn G, Dobos GJ.AlternativesRecombinant HirudinA leechs saliva contains limited amount of natural hirudin, so the stem of mass hirudin extraction for treatments is almost im practicable as this will multiply the cost. One possible stem to this is to synthesise a similar substance. Scientists have previously cloned the cDNA for hirudin and it is expressed in yeast. However, the resulting recombinant protein was found to be produced in the unsulfated form, which is known to have an at least 10 times lower affinity for thrombin than the of course occurring tyrosine-sulfated hirudin.Recombinant hirudin has been approved by United States FDA to be produced and applied commercially. It can be an alternative when living leeches are not available and the patient seems to develop intolerance against heparin. The dosage must be calculated aright in order to reduce the risk of side effects.HirudinHeparinRecombinant HirudinAdvantagesLed to a very accordant anticoagulant effect over time, independently of the use of thrombolytic therapy, a feature that represents a practical advantageInexpensive, performed well as an antithrombin agent in the current trial and should still be regarded as the standard therapyDemonstrable and consistant effect, espec ially on the rate of reinfarction, in the group of patients with acute coronary syndromes as a wholeDisadvantagesExcessive usage will increase bleeding riskNot infrequently engenders an immune thrombocytopenia, which can result in serious thrombotic complicationsSmall clinical effectTable 1 Comparison between hirudin, heparin, and recombinant hirudin by means of advantages and disadvantagesHementinHementin is a unique secretion in the saliva of virago Giant Leech (Haementeria ghilianii). As shown in Figure 2, it inhibits the coagulation of blood differently with hirudin by jailbreak down the fibrinogen. Because Haementeria ghilianii does not belong to the order of Arhynchobdellida but Rhynchobdellida, therefore it was not recognised as medicinal leech. However, Maurice Moloney, professor of plant biotechnology at the University of Calgary in Alberta, Canada discovered that while hirudin prevents clot formation, hementin dissolves a finicky kind of platelet-rich clot that can cause stroke and heart attack and against which clot busters like streptokinase and plasminogen activator are ineffective.3Mechanical LeechA leech-induced skin wound on a congested fasciocutaneous tissue flap will bleed passively for a number of hours with 90 percent of blood emission within 5 hours after leech detachment. However, after 3 hours, passive blood loss averages yet 2.9 ml. Furthermore, increases of maximum surface perfusion only extend 8 mm from the leech bite during passive bleeding. As suggested by these prior results, passive blood loss from a single leech bite should not be relied on to sufficiently decongest an impaired tissue flap, even after a relatively hulky active blood meal. There is the potential, however, of augmenting passive blood loss volumes with the use of a mechanical wind that facilitates the antithrombogenic environment of a congested tissue flap. Such a mechanical device may advance increased tissue viability. Increases in blood loss volumes may tra nslate into improved postoperative blood perfusion in congested tissue flaps, resulting in improved tissue flap viability and survival.ImplicationsEnvironmental, Economic disposal, release to the wild, pollution, disrupts aliment chain, expensive for medical purposes, but lucrative for pharmaceutical industriesEthical, Social reject the chance giving disclose treatment for patients, risk of side effects (bleeding), fear, can be overcome by mechanical leeches evaluationConclusionIt can be seen that leech therapy is somehow more effective than modern drugs. However, it raises a hardly a(prenominal) more questions like why we do not just extract the leech contents to treat the patients directly with it? I think it is because even though numerous studies and researches have been carried out, there are still some uncertain areas need to be recognised and solved. Besides that, the current situation allows us to rid of overdose of leech contentetc.

Racial Discrimination in the Workplace Essay

Racial Discrimination in the Workplace Es maintainIn the current time, the pay gap between the genders is understood significant in most countries, which shows that there is diversity against women in the actionplace, as the graph d avouchstairs illust accounts that women were more than twice as likely as men to say they adopt been victims of discrimination (Wilson, 2006). In the past century galore(postnominal) throng did not have equal rights to choose their jobs. For standard women could not aline jobs easily as men, be drive fashion certain community believed that men were more capable than women. In the current time, passel strongly believe in homophile rights, just now discrimination still exists, and the impacts of discrimination be serious in the take onplace and in society. The motions of discrimination in the piece of drop dead are shown mainly in two ways. Firstly, discrimination directly deals with the increasing rate of unemployment. Gender discrimina tion exists in almost companies. There are companies that do not employ women, and as a result women have slight job opportunities. In addition, age discrimination exists in separate companies. unripe people whitethorn not find jobs after graduation, because rough companies hypothesise that young peoples lack of experience would not benefit them. Secondly, discrimination results in decline in work efficiency. If a political party eliminates against women, consequently this company will lose work balance. Furthermore age discrimination is likewise harmful to a company. For one, at an older age people have a lot of experience, exactly young people are wax of enthusiasm and ideas, so these two groups are both important for a company. Racism has been identified as the belief that race is the main determinative of human capabilities, that a certain race is better than others, and that individuals should be treat differently according to their racial designation (Racism, 2010) .The United States has come a desire way in defeating discrimination in the work but it still has a long way to go. Although many minorities made grand steps during the Affirmative Action years, today there is still a very low percentage of minorities in comparison to whites in unified America. In addition, the graph below shows the percentage of minorities in the workplace, where they got only when 34% of the total employment (Chow, 2010).Racism acts dont affect the racist himself/herself or only the people works with him/her, it involves the customers and the staff also. As seen in the graph below, the effect of racialism is not limited to certain anatomy of people (Jones, 1996).The customers should be served in the best way possible no matter where they are from. Some employees whitethorn make the company lose many customers because of their actions. In the workplace there has to be harmony between the employees so the work flows easily and work gets do efficiently. But wh en there is discrimination between the staff, the environment becomes unhealthy, and consequently such actions would affect the company as a whole. For example, when employees are racist against severally other, they wont be helpful to each other, and as a result the work wont be done effectively.Discrimination can be caused by many reason outs in the work place, such as religion, hatred, and stereotyping. One of the main reasons of discrimination is religion, which can jeopardise the workplace. Religion may be a sensitive issue, and it mogul cause conflicts.Furthermore, in the workplace discrimination could occur just because of hatred. For example, some employees may think that another employee got a raise just because of his race, so they would discriminate and hate him/her.In the current time, most of the companies hire employees from different nationalities, because of globalization. Moreover, some of the employees may be racist to other nationalities and they would not acc ept having other nationalities working at the same level as they are.Moreover, stereotyping is another reason of discrimination. Someone may have had a bad experience with people from a certain region, and as a result this mortal may discriminate and stereotype anyone from this area because of the past experience.The consequences for racism in the workplace is massive, it includes lack of work flow, lost customers, and lawsuits. Racism would eliminate the efficiency of the work dynamics, as some employees may not work effectively with others so there will be a lack of the work flow. Furthermore, this cleverness affect the company adversely.Additionally, if the company has racist employees this will affect the way they treat their customers. Consequently, the operation of the company will be touch on, as many customers might feel discriminated or not appreciated and may apply the company and start going to other competitors.As well, the company might be at risk of racism lawsuits if it acquires racist employees. As a result, this is going to put the company and the employee at jeopardy. Moreover, if the company gets a nature of race discrimination it would be harmful for its business. The graph below shows the enumerate of discrimination cases filed by category to the U.S. decent Employment Opportunity explosive charge (PERFORMANCE RESULTS, 2008).For a company to survive its business it has to have solutions and pr as yettive measures for racism acts. This could be achieved by aware(predicate)ness by peer review, training, corrective acts, and flat edges. Companies that take efforts to attain cultural diversity are open to changes in corporate policies that bust incentives for employees who increase productivity in their departments based on cultural diversity. Often, this translates into major changes in corporate policies, such as in engaging in peer reviews over the traditional boss/marcher scenario. When managers are reviewed by those underneath them, there is less of a get that they will engage in racist comments or actions.Plus, the company should give cultural diversity training to their employees so that they will be aware of their actions and words, that they might think its acceptable to say or do but its considered racist. Many times, racism is not a public, overt action. Sometimes, many people who think of themselves as without prejudice may make racist comments without even knowing they made them. They may hear others putting down a fellow worker and take notice but be entirely ignorant of their own prejudices and behaviors. Saying something like you sure are stylishness for a black man, or a woman, or a Latino, is the kind of comment where the person usually has no sense of his or her own racism and many times think they had sincerely given the person a compliment. Furthermore, the graph below demonstrates the rate of discrimination while working in most countries around the world (Nita, 2008).Also, there has to be some kind of disciplinary acts within the company, so employees would be more metrical of their actions toward each other, and toward customers. Disciplinary acts is important in such cases as it shows the richness of the issue and that such discriminating actions are not tolerated in the company.Furthermore, termination is considered as the final result of racism acts. For example, an employee is known of discriminating acts and the disciplinary acts have not shown any improvement in his/her actions. Therefore, termination must be considered so that the work environment would not be affected by such employees, and so that this racist employee would act as an example to all the other employees.In conclusion, racist are very favored at keeping their actions private, thats why racism in the workplace still exists. The fact that an employee doesnt publicly say discriminating words at the workplace does not absolutely mean he has had a change of heart. He still may meet outsid e of work with his/her colleagues, and engage in racist jokes or put-downs. The basic prejudice is still there, and as long as it is, there can be no comfort taken in the fact that actions in the workplace have changed. A racially-biased locating remains. People cannot feel comfortable on making progress on discrimination in the workplace until this kind of attitude no endless exists (Racism In The Workplace, 2009).Chow, L. (2010, January 14). Mad Men Havent Changed Much Since The 1960s. Retrieved April 03, 2010, from National Public wireless http//www.npr.org/templates/story/story.php?storyId=122545036Jones, J. M. (1996). Prejudice and racism. In J. M. Jones, Prejudice and racism. McGraw-Hill Humanities.Nita. (2008, March 5). Job discrimination at the workplace. Retrieved April 11, 2010, from http//nitawriter.wordpress.com/2008/03/05/job-discrimination-at-the-workplace/PERFORMANCE RESULTS. (2008, November 26). Retrieved April 10, 2010, from The U.S. Equal Employment Opportunity Commission http//archive.eeoc.gov/abouteeoc/ forge/par/2008/performance_results.htmlRacism. (2010, April). Retrieved April 02, 2010, from wikipedia http//en.wikipedia.org/wiki/RacismRacism In The Workplace. (2009). Retrieved April 11, 2010, from Knowledge Galaxy http//www.knowledgegalaxy.net/racism_in_the_workplace/racism_in_the_workplace.htmlWilson, D. C. (2006). When Equal Opportunity Knocks. GALLUP Management Journal , 1-4.

Hector Gaming Company Case Study

Hector Gaming Company Case Studya) The major(ip) flummox of this problem is organizational politics. Everyone needs to be brought back to the self similar(prenominal) page. This can be obtained by setting goals and objectives together as a team. Secondly, you need to take all the projects and put them through some form of decision criteria. This will help you consider the projects that atomic number 18 most pivotal to your organization.Underlining IssueThe underlying issue with your organization is that you do not cede clear mission of where the company is going.AnalyzeStrengthsGrowth rate for the conk two years is approximately 80% each year. Unique application specialists.Peters entrepreneurial spirit.WeaknessesToo many projects on the go. Lack of internal communication. involution of interest.OpportunitiesA unique product that has niche educational value. Well naturalised brandThreatsPotential loss of industry talent to other companies. change magnitude elements of co mpetition. Threat of substitution products.AlternativesDo nothing If you follow this election you bring potential of loosing key employees.Revise the mission statement If choose this alternative you can bring the company back into line with everyone on the same page.Fire some or all your 10 top sharers If you choose this alternative you the potential of loosing valuable assets that can help build your business.Recommendations soften a spick-and-span mission defining the company direction with focusing on the lower age groups. bemuse sure to develop the new mission with all elements of your management. Guiding Coalition. Set out goals and objectives for all areas of your business. Make sure those goals align with your new mission. In addition, all your goals need to be SMART goals.Hector Gaming Company1. What is our major problem?The major problem with the HGC is the organizational politics. There are many internal problems in regards to resource allocation as project tutors d o not manage its resources effectively and efficiently.2. Identify some symptoms of the problem?Each project manager believes his or her project is more important. More projects are not clashing deadlines and are coming in over budget. Confusion as to who the rump market is. Communication among employees is weak. No priority teams to prioritize projects3. What is the major cause of the problem?One of the major causes is that HGC is growing too fast at a rate 80% a year for the past agree of years. Furthermore, mismanagement is a cause for concern. snap Peters (founder) seemed shocked with the problems that are occurring in the company. This is a sign that she is not paying attention to internal matters.RecommendationsSally Peters should take more of a role to oversee all projects that are currently on the go. Implementing a corporate structure for HGC Possibly learn an HR director to make sure proper resources are allocated accordingly.

Development of Dental Billing System

phylogeny of Dental Billing System

Evolution of 3G Technology

evolution of 3G Technology3G Sophistication GuaranteedTelecommunications evolution is undergoing a rapid vamp to the upcoming the evolution is almost exponential, from the analog types to 2Gs and then finally the latest ready innovation the 3G technology. The 3G techie is the latest on-stream line of communications which offers modernistic junction communications and high- further entropy connectivity, with wireless Internet access, roving data applications and high mul clock timedia content. The 3G fabric embodies true sophistication in impairment of officious technology but why was this phrase apply to identify it? To answer this an investigation of the roots and processes of 3G would be required.Mobile technologys conception started from the analogs. running(a) networks, or first generation wireless technology has been introduced in the mid(prenominal) 1980s in America, a technology that was incredibly region-specific in character. As the demand for mobile communic ations grew, the digital 2G emerged in the 1990s flanking the under susceptibility of the 1G systems. due south generation mobile systems operate on the adjacent fundamentals TDMA, (IS-54 and IS-136), GSM and CDMA IS-95 or cdmaOne. GSM, used worldwide, is a packet-switched technology that transports speed theoretically of up to one hundred fifteen kbit/s. Unfortunately, these technologies were found to be incompatible with each other, and many mobile techies were incredibly delimited to a specific region or country. They be likewise fabricated mainly for voice data and s deplorable transmission. Rapid changes in user expectation and communication ineluctably, sought the need for improvement. The resolution a unifying digital wireless communications that would make worldwide roaming with a single handset possible.3G refers to the third generation wireless technology and networks and was invented in 1999 (Xavier, ?). It is actually a modified concept of 2G mobile phone systems. It is base on an International Telecommunication Union (ITU) scheme establishing for single global wireless regular called International Mobile Telecommunications-2000 (IMT-2000), a resolution to the defects of 2G system. corpse capacity and spectrum capacity over 2G systems was the underlying theme of the ITU standardization systems. marginal transmission rates was set at 144 kbps in mobile (outdoor) and 2 Mbps in fixed (indoor) environments.(Qualcomm, 2001). Simply put, it is an improved wireless scientific device for a collection of international standards and technologies int destroyed to increased efficiency output and improved mobile wireless network performance.Since 3G is actually a convergence, the different networks working to standardized it, may be classified as follows WCDMA, CDMA2000, UMTS and EDGE. The variation as opposed to the standardization digestnot really be persistent since there are economic forces or stakeholders who have vested interest in favor of that particular standard. WCDMA (Wideband Code Division Multiple Access) refers to broadband digital radio communications of Internet, multimedia messaging, video streaming and other capacity-demanding applications and is the best-loved 3G network in Europe, Asia, Japan, United States and Africa. Conversion of input data (e.g. image, video, voice) to a narrowband digital radio signal tagged with a specific scar is the method for multi-rate transmission of the network.CDMA (Code Division Multiple Access) is the leading 3g network as of current providing over a hundred million consumers worldwide. It was selected as the assiduity standard by the ITU (International Telecommunications Union)..CDMA technology is a combination of two networking assets CDMA2000 1X and CDMA2000 1xEV-DO. The capacity and performance of voice and data services of CDMA2000 1X is twice that of the origin CDMA systems and surpasses that of TDMA and GSM. blush data rates are reached to about 153 kbps without intervening voice capacity. It overly offers longer standby times. Its high compatibility with the former CDMA help upgrade of mobile technology to current. CDMA2000 1xEV-DO is a data-optimized version of CDMA2000 providing peak rates of more(prenominal) than 2 Mbps, with an average output of over 700 kbps. This fast technology is parallel to digital subscriber line service and can admit video streaming data and titanic byte file wadloads. The stipulation for CDMA2000 1xEV-DO is to delivers maximum number of data (Megabyte) at the final exist possible.Being the selected technology, CDMA offers the best packages in mobile technology. CDMA builds on the former CDMA systems and improvised on it like the Orthogonal Frequency Division Multiplexing (OFDM and OFDMA), advanced control and signal procedure, improved interference signalmanagement techniques, end-to-end Quality of military service (QoS), and naked antenna techniques such as Multiple Inputs Multiple Outputs (MIMO) and shoes Division Multiple Access (SDMA).The advantage of this improved packages include the following (1) lead performance (e.g. data speed, capacity, latency), (2) spectrum efficiency, (3) advanced mobile services support (4) IP compatible (5) device selection (6) seamless evolution rail and and (7) global/network coverage flexibility. Best of all it leads lower monetary value of total ownership (CDMA information Group, 2007).UMTS (Universal Mobile Telecommunications System) is the mobile telephone standard in Europe, set by ETSI. Unlike GSM, the UMTS follows moulding protocol for data networking. The topmost, beingness the services layer, is for allocation and data speed. The control layer located central, assists in upgrading actions and allows dynamic allocation and tagging of data to a specific bandwidth. Bottommost is the connectivity layer where any transmission technology can be seconded and the voice relations will transport over ATM/AAL2 or IP/RTP whence trafficking by signal bandwidth is prevented (GSM server, 2007).EDGE (Enhanced Data For Global Evolution) allows GSM the aptitude to pass over services for the 3g telephony. It facilitates data transmission at a high speed of 384 kb/sec. EDGE employs TDMA (Time Division Multiple Access) frame structure, logic gestate and 200kilohertz carrier bandwidth. The same bandwidth with that of GSM sytems enables system compatibility (3G, 2006). System compatibility assures upgrade efficiency and low cost which had been the problem of most G3 networking systems (Lapping, 2006).The constituents of 3G is vast and caters to the technological whims of the techie addicts and the businessmen all over Europe, Asia, South America and Africa, however, like all new technologies, there has been a bone of contention among manufacturers. From the time that the idea of 3G arises and the time when it was marketed, obstacles seem to be always around the corner. As mentioned earlier, there are various networks of 3G whi ch had actually lead to licensing disagreements arising from different terms of conditions from different parties involved. racy debts incremented by the telecommunication parties during the past years, which may actually pose as a threat to the development of 3G. Also, operator troubles are unsupported by state finance. The expenses associated with license are ghastly. The main problem of 3G all boils down to money. 3G service is new hence network coverage is limited. Also, the cost of technology is cumber nearly for the commoners and the internet flat rate is high at whatsoever countries. The main problem with the upgrade of technology to 3G is that there are some price qualms associated with the introduced and advanced technology. Fortunately, most of the leading handset manufacturers like Broadcom puts an end to this entire anxious price tirade, and eventually managed to produce more 3G technologies aiming to facilitate its spread globally and probably to stimulate its economic demand. Broadcom generated the Cellairity chipset with astounding cost of $100 (Hyatt, 2007). This price resolution may, in the long run, predict to be a good start of consumer availability for 3G.Broadcom may have initiated decrement in production cost but would other companies follow? 3G is a huge risk of investment in consumer market. 3Gs sophistication actually caters to that man of affairs who conducts their businesses assisted by the wireless networks. Unfortunately, the turn of events is that businessmen constitute notwithstanding a small population in the global networking arena. For the sophisticated technology to be truly cosmopolitan in character it had to be used by most of the networkers and mobile-users all over the world. For now, it is strangely delimited to those who can really afford it.Looking at the positive side of things, the mail service of 3G consumer ratio would not always be the same. Like all things, needs change, and observing the evolution of mobile technology from the rustic analog model to the latest 3G types, one can only predict that consumer needs would be inclined towards technological enhancement and that technological enhancement would be get around suited to the needs of the consumer.What is more is that needs change, mobile techie trends may also change. The 3G model is now currently being improvised from more than 3G to 4G.4G Technology Super-satisfaction guaranteed?Only time will tell.References3G. (2006). 3G store. Retrieved Nov 22, 2007 from http//www.3g.co.uk/All%20About%203G.htm3G Technology. (22 Aug 2007). Qualcomm. Retrieved Nov 22, 2007 from http//www.3gtoday.com/wps/portal/subscribers.CDMA Development Group. (2007). 3G-CDMA2000. Retrieved Nov 22, 2007 from http//www.cdg.org/technology/3g.asp.GSM server.(2007). Evolution to 3G. Retrieved Nov 22, 2007 from http//www.gsmserver.com/articles/evolution_to_3g.php.Hyatt, J. (2007). Broadcom Enables 3G Mobile Phones at 2G Prices with New CellAirity Chipset. Retrieve d Nov 22, 2007 from http//www.broadcom.com/press/release.php?id=815794.Lapping, K. (2006). speak to and Software Incompatibility Stymie 3G Growth. Ernst and Young Ltd. Retrieved Nov 22, 2007 from http//www.ey.com/global/content.nsf/South_Africa/06_Sept_05_Costs_software_incompatibility_stymie_3G_growth.Xavier, P. (?). Licensing of 3G Mobile. Swinburne University of Technology. Retrieved Nov 22, 2007 from http//www.itu.int/osg/spu/ni/3G/shop/presentations/xavier_1.pdf.