Observation and Inference free essay sample

We have been provided with two samples of vinegar, one removed from a restaurant and one removed from a take-away. Trading Standards suspect these two establishments of watering down the vinegar. They need evidence that the samples contain less acid than the standard vinegar sample provided. What is the purpose of this? I’m a worker in the Trading Standards which carries out tests to see if restaurants and takeaways are watering down the vinegar. We will take one sample of vinegar from a restaurant and from a takeaway which we will carry out an experiment that will show us the results and concentration of the vinegar compared to the standard solution which Trading Standard provides. What is a Vinegar? Vinegar is a versatile liquid that is created from fermentation of ethanol, this is done by when yeast or any type of bacteria. These converts sugar in ethyl alcohol and carbon dioxide. We will write a custom essay sample on Observation and Inference or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Fermentation begins after the glucose enters the cell. The glucose is broken down into pyruvic acid and is converted into CO? , ethanol and energy for the cell. It also contains acetic acid, this acid is the key ingredient because of this acid, and you can taste the acidic taste in the vinegar. Vinegar also contains different types of acid like tartaric, and citric, typical vinegar has a pH of 2 – 3. 5. A standard table Vinegar contains about 4-8 percent of acid by volume Vinegar is mostly used for flavouring in food; by it also has medical, industrial and domestic use. What percentage of which acid should a standard, ‘table vinegar’ solution contain? A table Vinegar tends to be more diluted which can be 4/5% acetic acid and standard table Vinegar tends to be around 5% acetic acid (CH3COOH) which is also known as ethanoic acid. This is the chemical formula of acetic acid; ethanoic acid is diluted version of acetic. One molecule of acetic acid contains four hydrogen, two carbon and two oxygen atoms, this forms the chemical structure. Why is it important that vinegar contains the correct concentration of acid? It is very important that a vinegar contains the right concentration of acid, this is because if the company making the vinegar has a high concentration of acid in the vinegar it has a high potential of harm it can cause to the people would eat/drink this, they can seriously burn their inside which cause serious injury, or even enough to kill them, also if a vinegar is to diluted it would have no flavour therefore no one would taste the vinegar in the food. Trading Standards provides the information of the right concentration for companies would know what to do; this will avoid any problem, for example if they had the concentration of the acid to high, and it had injured a person. This is why there is a health and safety rules to be followed, for example the chemicals that they are using. must be disposed Trading Standard will perform an investigation and if the company was found guilty, there is a high chance that they will be fined, and if it was worse, the company has a chance of being shut down and put out of work. What is a Titration? A Titration is a technique where a solution of unknown concentration is identified by performing this test. A typical titration is where a titrant is added to a burette with the known amount of the unknown solution, until the reaction is complete. An acid-base titration is useful because acid-base titration techniques can help determine a pH of the chemical; also it allows us to see the lowest amount (in terms of volume) of a standardized substance you need to complete a reaction fully, which is why you add the substance slowly instead of quickly. Explain the general theory behind an ‘acid-base’ titration 1. Using a pipette, measure out exactly 25cm3 of sodium hydroxide 2. Add about 2-4 drops of the indicator phenolphthalein to the alkali 3. Fill the burette to the measurement marked 0cm3 with acid (Vinegar) 4. Turn the stock-cock on the burette to release the acid, wait until the alkali turns clear again. 5. Record the reading you have taken in a table. What type of indicator will be used and why? The indicator we are using is phenolphthalein, this is very good indicator this is because it is very easy to use, and it shows good results, it is also a safe chemical because even if it is dropped on the skin it would not irritate the person, when the reaction is occurring it turns the pink sodium hydroxide into the clear liquid it was before, this change will take place when the pH reaches about 10. Concentration Acid (0. 04) = Volume Alkali x Concentration Alkali (25 x 0. 1mmol/dm3) ? 51. 2cm3 On our experiment we have found out that two of the titration test I have examine prove that they are up to standard with Trading Standard, for example for sample A is the same results as the Trading Standard, but in sample B It has proven that there has been a watering down in the Vinegar, this means that this restaurant or Take away is watering down there Vinegar by 27. 24cm? I think the food establishment did this to save money on buying Vinegar, this means they will make more profit. the following calculation we use to identify the concentration of the Vol. acid X Conc. Acid = Vol. alkali X Conc. Alkali Burette unknown 25cm? Volume (by pipette) known value Evalution The results we have found turned out to be accurate to the Trading Standard results, for example sample A exactly got the same results as Trading Standard 23. 96cm? Sample B’s results show that they have water down the Vinegar compared to the Trading Standard, are results are very accurate this is why we received good results from the titration test, we may have done some mistake, out of the three experiment but not major mistake. There could have been an error made while we measured the Vinegar, are method was appropriate and our equipment’s were very accurate, this is shown by are accurate results which compares to the results of Trading Standard, we can improve this experiment by being more accurate with our measurement next time we perform this experiment.

The Glass Ceiling Research Paper Example

The Glass Ceiling Research Paper Example The Glass Ceiling Paper The Glass Ceiling Paper Despite the advances that have been made in creating equal employment opportunities, discrimination still exists. Minorities, women and the protected class members rise only so high but go no further; this may be described as the Glass Ceiling an invisible but real barrier to upward mobility. The Glass Ceiling is constructed from organisation culture, stereotype thinking and managerial attitudes. When an organisation precludes an individual from advancing as far as they can, both the organisation and the individuals lose. Shattering the glass ceiling would allow for the organisation to develop effective ways of eliminating foregoing mobility barriers, make greater use of selection plans and by moving away from casual, subjective methods (such as typical promotability ratings, quick reviews of personnel files, supervisory informal recommendations) and also pay close attention to the types of KSAOs necessary for advancements and establish programs to communicate these KSAOs to those employees. Disadvantages of the glass ceiling could be excessive turnover this may be a result of employees who find themselves in dead-end jobs or who discover that there are severely limited promotional opportunities, as a result employees are prone to leave the organisation. Another disadvantage would be increased recruiting costs, in that excessive turnover increases recruiting costs: constant and sometimes intensive efforts are required just to keep the position filled, if a companys reputation states that it lacks interest in the career of its employees, the recruiting task becomes more expensive and more difficult. Underutilization of talent may be another disadvantage, in that the absence of career-centered developmental activities that are available may not be used efficiently. Employees may be hired to do a particular job, with little or no thought given to other jobs for which they could be trained and developed. Employee dissatisfaction is also a disadvantage of the glass ceiling; this is a result of the employment expectations not being filled and so employees become de-motivated, unsatisfied and their productivity declines. Another disadvantage could be poor promotional decision based on favoritism, politics and other inconsequential factors rather than on performance, preparation and organisational needs. Moreover, when the wrong persons are promoted for the wrong reasons, it will place a negative impact on the organisation, due to their job performance. Other disadvantage includes Potential Discrimination where in the absence of formulized career planning and development, promotion decisions may tend to be made on the basis of non-relevant job factors (such as stereotype and friendships). Stymied Progression, where for every employee whose upward mobility is precluded, one or more other employees cannot progress because the employee whose progress is stymied blocks the promotion channel.  The consequence of not engaging in career planning and development has underscored the need for a formulized program. Career management should not be left to chance because the organisational risk of doing so is too great. Conclusion The selection of internal candidates follows a process very similar to the selection of external candidates as both methods includes a logic of prediction which states that indicators of a person degree of success in past situations should be predictive of how successful he or she will likely to be in new situations. This is applied and based on this information a selection plan is developed and implemented. One area in which there is a huge difference in internal and external methods is the nature of the predictor. Predictors used for internal selection tend to have greater depth and more relevance and are better suited for verification as a result there are often different types of predictors used for internal than for external selection decisions. The methods that were in selecting the internal candidates were the Initial Assessment Methods, Substantive Assessment Method and Discretionary Assessment Method, which occur at different stages in the selection process. The initial assessment methods that were used to narrow down the applicant pool to a qualified set of candidates were skills inventory, peer assessment, informal discussions and recommendations. The next method in the selection process is the Substantive Assessment method. This assessment is used to select finalists from the list of candidates. The predictors used for making this decision were seniority and experience, job knowledge tests, performance appraisal, promotability rating and lastly interview simulation. In order to narrow down to those who will receive job offers the discretionary assessment method is used. Multiple assessors are generally used with internal selection, simply put not only the hiring managers opinion are used to select who will receive the job but the views of others such as previous manager or top management.  In making job offers there are legal issues to be taken into consideration. Two areas for internal selection are the Uniformed Guidelines on Employee Selection Procedure (UGESP) and Glass ceiling. The UGESP ensures that internal selection methods are valid if adverse impact is occurring. Reference List Dessler G., (2005). Human Resource Management, 10th edition. Prentice Hall.  Heneman H. G. III Judge T, A., (2007). Staffing Organization, 5th edition. McGraw- Hill Irwin.

Associate Degree Nursing as Compared to Baccalaureate Degree Nursing Ess

It has been shown that a nurse’s level of education can become a major factor to the safety and quality of care of their patients because of this there has been an increase in studies over the years that directly examine patient outcomes in similar situations between Associate Degree Nursing (AD) and Baccalaureate Degree Nursing further know as (BSN) (Fagin, 2001) The states of New York and Texas conducted separate studies that were done in the year 1996. Both of these studies agree on the point that there is a significantly higher degree in levels of medication errors and procedural mistakes made by nurses that are from AD Degree and Diploma Degree nurses as compared to that of a BSN Nurse and AD degree nurses were destined to be charged nine times more often with violations than those with a BSN degree. These results are equivalent with the results disclosed in the July/August 2002 issue of Nurse Educator magazine (Fagin, 2002, para. 50). Research has also shown that when you have a shortage of registered nurses at the baccalaureate and higher degree it is endangering the safety of the patient. Comparatively in a study done at the University of Pennsylvania they found that patients experienced a significantly lower death and failure to reWhen Care Becomes a Burden: Diminishing access to adequate nursing. Retrieved from Milbank Memorial Fund: http://www.milbank.org/reports/WhenCareBecomesBurden_Fagin.pdf Giger, J. N., Davidhizar, R. E. (2006, December 22). Conceptual and theoretical approaches to patient care: associate versus baccalaureate degree prepared nurses. Journal of Advanced Nursing, 15, 1009 - 1015. doi: 10.1111/j.1365-2648.1990.tb01980.x Green, (1996). (Survey). State Education Department/University of the State of New York Johnson, J. H. (1988). Differences in the performance of baccalaureate, associate degree and diploma nurses. Research in Nursing and Health, 11, 183-197. Rosseter, R. J. (2010, March 18). Fact Sheet: The Impact of Education on Nursing Practice (Fact Sheet). Retrieved from American Association of Colleges of Nurses: http://www.aacn.nche.edu/media/pdf/EdImpact.pdf

Science of Organic Food Essay Example | Topics and Well Written Essays - 250 words

Science of Organic Food - Essay Example Organic foods are meat, animal products, or crops, which their production does not include the use of pesticides and fertilizers. The idea of chemical pesticides and fertilizers negative effects pioneered the rise of the science of organic food. Organic farming has risen to a huge business because of its improved benefits of flavor and health. Organic farming has potential benefits for the environment of agricultural chemicals.  Organic foods are meat, animal products, or crops, which their production does not include the use of pesticides and fertilizers. In the 20th century, the idea of chemical pesticides and fertilizers negative effects pioneered the rise of the science of organic food. Organic farming has risen to a huge business because of its improved benefits of flavor and health. Organic farming has potential benefits for the environment of agricultural chemicals.  Nutritional quality and other factors are not the only reasons to buy organic foods. The rate of consumptio n of organic food has reduced the degree of exposure of antibiotic resistant and pesticide. Organic food is safe although it is hard estimating the cost of organic food. No level of pesticide is the best level in any human body in a family.   Organic foods are expensive than traditional foods. Organic products have different textures and flavors that are a little tasty. Organic products are expensive and only found in supermarkets and local markets. Another benefit for organic farming is because it slows environment and climate change.

Interview Analysis Research Paper Example | Topics and Well Written Essays - 1000 words

Interview Analysis - Research Paper Example The brand name played a vital role in purchasing the laptop. Apple is a household name not only in the US but also across the globe. Everyone recognizes that the products produced or manufactured by Apple are world class. Apple as a company is the best company that deals with computers, phones, and other electronic devices. Apart from these devices, Apple is well known for its operating system, Mac OS. Its line of laptops is respected for being the best in the market. In developed countries, virtually everyone is using a MacBook as his or her most trusted laptop. MacBook is a brand name on its own and when combined with Apple it becomes a force to reckon with in the world of laptops. The name indeed played a major role when choosing the type of a laptop to purchase. From the interviewee, it is apparent that the speed and graphics of this computer model were the main reason for buying the laptop. Therefore, my advice to the marketing manager will revolve around these two factors and mainly on the processor speed. For Apple to continue enjoying the leader role in the computer market, it has to continue producing these kinds of computers. If possible, the management should improve the current model in terms of speed since their competitors are doing their best to lure customers to buy their products. To keep up with a competitive and open market one has to make high-quality computers that are not only defined by their speed but also their graphics. Presently, Apple is performing extremely well in this sector.

Visual Arts of the World Essay Example for Free

Visual Arts of the World Essay Visual arts ranged from a variety of objects. These are works of art that are crafted with visual in nature such as paintings, photography, architecture, filmmaking and sculpture. Thus, these pieces of art are primarily meant for visual consumptions. This study will tackle on wooden sculptures belonging to two different cultures: the bulol or Ifugao rice god of the Philippines and one of the early wooden sculptures of Yoruba Nigeria of Africa. The said art forms will then be examined, analyzed, compared and contrasted. The formal elements or physical appearance of the work will be discussed first and second, its cultural representations and significance. According to the British Council Arts, sculpture is the art or process of creating representational or abstract forms, either in the round or in relief. It is a form of art that is being carve either on wood, ivory or any material that the artist decide to do so. Ifugaos are inhabitants of the Central Cordillera in northern Luzon in the Philippines. Their origin is derived from the term Ipugo which means â€Å"from the hill†. According to Ifugao mythology, the name â€Å"Ifugao† is derived from Ipugo which refers to the rice grain given to them by their god Matungulan. Until today, this kind of rice grain is cultivated by the Ifugaos (Sianghio). On the other hand, according to The Africa Guide, Yoruba are people who live in Southwest Nigeria and Benin. They have developed a variety of diverse artistic forms which include pottery, weaving, beadwork, metalwork, and mask making. There are more than 401 known Yoruba gods so most of the artworks, which include sculptures, are made in order to honor the gods and ancestors The bulol, generally means deity, is specifically a granary idol. It is considered as an effigy of deceased ancestors (Asian Studies 63). In accordance to the C. E. Smith Museum of Anthropology, it is carved human figurines that is usually made in pairs—male and female—and are kept in the house or granary. Some bulols are standing while some are squatting with folded arms (Masferre and de Villa 54). It is an abstract art, according to Alfredo Evangelista of National Museum of the Philippines (1970), because the Ifugao carver expresses his feelings rather than attempts realistic representation. The deformations are results on the emphasis on the quality of other worldliness or the preternatural. The bulol is the most crucial art form because it embodies the Ifugao’s most sacred traditional values (Asian Studies 62). On the contrary, the Yoruba Nigeria sculpture follows the typical form of an African sculpture—cylindrical. African wooden sculptures are primarily cylindrical in appearance and are also made of wood. The statues are carved from trunks or branches (Segy 14). According to Frank Willet, the head is very much depicted because the Yoruba believes that it is the seat of one’s destiny, therefore it must be symbolically bigger and more prominent than any other part of the body. He has also identified three characteristics of Yoruba sculpture: bulging eyes, protruding lips and simplified ears which can clearly see in the chosen piece. The selected sculpture is not defined whether the art form is a female because the chosen Yoruba sculpture is naked, showing its stout breast or a male, exposing its phallus. Carving a bulol usually takes six weeks to finish and it is accompanied by rituals and dancing. The male and female bulols are carved at the same time (Masferre and de Villa 54). In contrast, the Africans believe that trees are home of spirits so in order to pacify the spirit of the tree, a special ritual is done before the cutting of the tree. The two selected sculptures are both anthropomorphic in forms which mean that the works of art ascribe human characteristics. They are both made of wood. If the bulol is often placed in a granary to protect the harvest, the Yoruba sculpture is used as an adornment and indicates a social status. The chosen works of art have utilitarian and historical relationship with the culture of the carver. They are both religious symbols and are accompanied by certain rituals. If bulols are considered as ancestors whose spirits can protect the living (Alvina and Sta. Maria 199), the Yoruba sculpture is a manifestation of the relationship of the African and the spirits of dead members of his family, which is extremely important in their culture. From the cultural background of bulol, it can clearly be seen that Ifugao are farmers. They live in an agricultural area where they primarily rely their lives. On the other hand, the Yoruba sculpture, as a social symbol, indicates that the owner is from a wealthy class, however, it is not clearly indicated or stated that the carver is also from a domineering class in their society, thus, the carver can come from the lower class in the society. Those chosen visual arts need to be seen, perceived and judged with an open mind. They should not be anchored to the Western standard of defining â€Å"what is beautiful† or â€Å"what is aesthetically pleasing† because they will definitely fail to abide to the Western standard with regards to â€Å"what is art,† which is confined then to fine arts—paintings, sculptures of artists that appeal to the senses and emotions—pieces that express the Western notion of â€Å"beauty† and portrays realistic figures especially when it comes paintings and sculptures just like how Michelangelo comes up with his â€Å"David,† the famous depiction of male beauty (History of Beauty). If the wooden sculptures of Yoruba and Ifugao are anchored to the Western standards and notions of ‘art’ and ‘beauty,’ those pieces will then categorically be labeled as â€Å"primitive† due to their irregular proportions and eerie appearance. Illustrations This Yoruba sculpture has originated at Yoruba Nigeria in Africa. It is an anthropomorphic figure and a manifestation of the nexus of the dead African family members to the living. It is a religious and status symbol. It is an early Yoruba sculpture. The artist or carver of the sculpture has not been stated but definitely he belongs to the culture of Yoruba. It is 34. 3 inches or 87 cm tall and made of wood (not specified). . This bulol is one of the forms of a rice god—sitting with folded arms. It is usually put in a house or in a granary for protection. It is often carve in pairs—a male and a female. It has a length of 6. 5 inches, a width of 6. 5 inches and a height of 24 inches. The artist or carver is not also stated but definitely he is an Ifugao. The sculpture is made of wood (not specified). Works Cited Asian Studies. University of the Philippines: Philippine Center for Advanced Studies Philippine Center for Advanced Studies, 1972.Alvina Corazon and Santa Maria Sta. Maria. Halupi. Capital Publishing House, 1989. Gagelonia, Pedro A. Concise Philippine History. Philippines: Far Eastern University Consumers Cooperative Incorporation, 1970. Masferre, E. and Jill Gale de Villa. A Tribute to the Philippine Cordillera. Makati City, Philippines: Brier projects, 1999. Perkins, Morgan and Howard Murphy. Anthropology of Art. Oxford: Blackwell Publishing, 2006. Segy, Ladislas. African Sculpture. New York: Dover, 1958. Willet, Frank. African Art: An Introduction. Singapore: Thames and Hudson, 1971. â€Å"African People and Culture. † The African Guide. 02 December 2008. http://www. africaguide. com/culture/tribes/yoruba. htm. â€Å"Cutting: The Woodcarver. † 18 April 1995. Yoruba. Conner, Michael. 02 December 2008. http://www. fa. indiana. edu/~conner/yoruba/woodcarver. html â€Å"History of Beauty. † Answers. com. 02 December 2008. http://www. answers. com/topic/beauty â€Å"Ifugao. † Tripod. Sianghio, Christina. 02 December 2008. http://litera1no4. tripod. com/ifugao_frame. html. â€Å"Sculpture. † British Council Art. 02 December 2008. http://www. britishcouncil. org/arts-art-sculpture. htm List of Illustrations

A Different Look at Flannery O’Connor Essay -- Flannery O’Connor

A Different Look at Flannery O’Connor A murdering messiah. A Bible-selling prosthesis thief. A corpse in full Confederate regalia waiting in line a Coca-Cola machine. One of the most haunting qualities about Flannery O'Connor's fiction is the often shocking but always memorable images adding intensity to her stories. Her violent comedy is a fusion of opposite realities--an explosive meeting between contradictory forces. She creates characters from the southern grandmothers, mothers, preachers, neighbors, and assorted "good country people" populating her world, using their traits, words and behaviors to give her fictional world life. And we are as familiar with them as she is. We know them; they could be people from our region, our town, our family. Just regular folks. But she pushes them beyond normal boundaries, beyond any reality we or they could imagine by introducing them to their opposite. The person on the other end of reality. For example, the grandmother in "A Good Man is Hard to Find" appears to b e the stereotypical grandmother busily involved in her fami...

Fashion Conscious Creme

These are lines often heard in the fashion conscious creme de la creme of Indian society. The story is the same in almost any commercially ‘happening’ city in the world except that the names of the designers keep changing. This does not mean that the national designers have not made a dent in the world market! The Indian fashion world got global attention after Miss Sushmita Sen and Miss Aishwarya Rai won the much coveted Miss Universe and Miss World titles respectively in 1994. Critics look upon these victories as a multinational conspiracy to promote European and American products in post-liberalisation global India.But the reality of the Indian fashion world having made a name for herself cannot be denied. ‘Fashion’ refers to that which is in vogue. It is usually related to one’s dress sense and personality traits. In today’s global village, everything from the colour of your hair to the designer brand of your shoes is a part of your fashion statement. There is a natural desire in all of us to look good and our fashion sense essentially roots from there. This desire to look good is a primal instinct and should be respected because looking good is feeling good.The appearance factor also plays a very important role in the job sector because a good look obviates a sense of refinement and culture and communicates the right kind of values in one’s upbringing. The modem obsession with designer products sold at ludicrous prices, however, beats understanding. Some young man with multiple partings in his spiked hair sporting a loud T-shirt with torn jeans in perfect ‘harmony’ with the pierced eyebrows, nose, lip and navel is not sporting any attitude; he is simply epitomising the fall of man to a level of vulgarity which is worse than bestial. Fashion should not be confused with arrogance or impudent disrespect for traditional norms and the values of our seniors. Fashion â€Å"The Craze Among Youth†.E very person is fashion conscious. Fashion is very popular among the school boys and girls. They do it in a competitive spirit to look smart, up-to-date  and attractive. Students like actors and actresses. Some of them see a film to copy the latest fashion. It is mostly the college students who look upon fashion as the very stuff of their conscience. Being fashionable is the only real passport to high society and popularity in the college. Students put on expensive and fascinating clothes of the latest cut, color and design. The students spend a lot of money on clothes and other things in life for sake of variety.They do not realize that they are wasting their precious time and energy in this effort. In addition, they waste the hard-earned money of their parents. Students have become crazy after fashion. But this is all being done at the cost of their studies. They are wasting the precious time of their life. Sometimes, poor parents are burdened with fashion bills. 853 Words Free S ample Essay on FashionThus, every one should try to have some leisure and make the best use of it by taking to some good hobby or the other. Great caution should be exercised; in choosing a hobby. We should choose a hobby which recoups our energy and provides relaxation and recreation. Young people all over the world are becoming more and more fashion conscious. Young students, whether boys or girls, are crazy about it they want to look smart and beautiful by wearing dresses of the latest designs.In order to boost the sales of their dresses, leading cloth mills and dress ¬making firms engage reputed fashion designers and beautiful models. Fashion parades and shows are held in big five star hotels to exhibit the latest dresses. Fashion is no longer the monopoly of women. Even men have great fancy for it. In fact, the latest uni-sex dresses like shirts and jeans can be worn both by the girls and the boys. Today, the biggest centers of the latest fashions in the world are Paris,†¦

Nutrition and Health Worksheet Essay

Use Ch. 1 of Contemporary Nutrition, Ch. 2 of Visualizing Nutrition, supplemental course materials, the University Library, the Internet, or other resources to answer the following questions. Your response to each question should be 75 to 100 words. 1.What is nutrition? Why is nutrition essential to our daily lives? Nutrition is the science that links foods to health and disease. It includes the processes by which the human organisms ingest, digest, absorbs, transports, and excretes food substances. 2.What is the connection between nutrition and health? 3.What are the six classes of nutrients? What are essential nutrients? What are the sources of nutrients? What do nutrients do? 4.How do vitamins and minerals work? 5.What does it mean to eat a balanced diet? Why is food choice important for good nutrition? 6.What is undernutrition? What is overnutrition? 7.Why is physical activity important as it relates to nutrition and health? 8.Where might you find dietary recommendations? What are the recommended dietary allowances (RDA)? What are dietary reference intakes (DRIs)? 9.The United States Department of Agriculture created a diagram titled MyPlate. What is this diagram? Why should someone study this diagram? 10.What are some tools for diet planning? 11.What is the calorie intake calculator? What factors does this calculator take into account? 12.What are some dangers associated with dieting? 13.What is the best way to lose weight? Explain your answer and provide at least one source, formatted consistent with APA guidelines, to support your answer. Reference 14.How does exercise influence body weight? 15.Consider your personal dietary habits. What are some modifications you might make to promote good health? 16.How does today’s society affect our nutritional habits?

Methods Of Recovering Energy From Waste An Environmental Sciences Essay Example

Methods Of Recovering Energy From Waste An Environmental Sciences Essay Example Methods Of Recovering Energy From Waste An Environmental Sciences Essay Methods Of Recovering Energy From Waste An Environmental Sciences Essay Biomass ( waste ) energy is progressively pulling attending worldwide because it is a renewable beginning of energy and potentially CO2 impersonal. At present, most waste stuffs are converted into electricity frequently by burning. Waste burning is widely applied for territory warming and combined heat and power for electricity coevals. This study describes waste, waste decrease and intervention ordinances in Europe every bit good as different types of waste generated, an overview of waste to energy engineerings applied throughout the universe today. Energy from waste has been evaluated based on their ability to cut down the emanation of pollutant into the ambiance. In order to extenuate clime alteration which is deriving increasing consciousness, recent developments of different engineerings that have been able to treat waste to bring forth heat and power with high efficiencies can be considered to be the most feasible option to replace fossil fuels. 2 Introduction Due to the lifting cost and the ecological disadvantages of fossil fuels, there as been concerns about the hereafter of energy supply in the universe. Harmonizing to the World Energy Council, dodo fuel covers about 82 % of the universe s energy. And this has caused terrible amendss for the environment in footings of nursery emanations, sea degree rise, air pollution, etc. Furthermore, as the World continues to see globalisation, rapid industrialisation and technological promotion, it will surely acquire to a point, where supply of these fossil fuels will non run into demand. Therefore, it is imperative to happen an alternate beginning of energy ( Soetaert and Vandamme, 2006 ) . Research and development of renewable beginnings of energy and energy from biomass is expected to be of huge benefit to the society as it reduces the concentration of C dioxide in the ambiance and it is non exhaustible. Biomass is a major beginning of biologically derived bio fuels ( bio-ethanol ) and biogas. This is well going a world in energy/electricity coevals. Biomass can be burnt straight to bring forth heat or electricity, or it can be converted into solid, liquid or gaseous fuel through agitation procedure into intoxicant and anaerobiotic digestion into biogas. There are many environmental and societal benefits associated with biomass energy. These include decrease in CO2 degrees, energy bearers to rural communities, waste control, etc. ( Calbe, Bajay, Rothman and Harry, 2000 ) . Biomass natural stuffs for energy coevals includes the first coevals feedstocks i.e. energy harvests ( maize, sugar cane, wheat, etc ) and the 2nd coevals feedstock chiefly lignocellulosic stuffs ( wood and agricultural residues ) . Hence, utilizing biomass as a replacement for fossil fuels is sustainable and good. However, there have been contentions on the usage of human nutrient ( energy harvest ) for energy coevals particularly in developing states where there is deficit of nutrient. Hoffert et Al. ( 2002 ) , Dismiss the usage of biomass for energy, others take the opposite position ( Dewulf and Langenhove 2006 ) . To this consequence, energy recovery from waste can be an economical feasible option. 3 Wastes 3.1 Definition Waste arises as a consequence of human technological development and societal activities. The Uk s Environmental Protection Act 1990 indicated waste includes any substance which constitutes a scrap stuff, an wastewater or other unwanted excess originating from the application of any procedure or any substance or article which requires to be disposed of which as been broken, worn out, contaminated or otherwise spoiled, this is supplemented with anything which is discarded otherwise dealt with as if it were waste shall be presumed to be waste unless the reverse is proved. Murphy et Al. ( 2002 ) defined waste as a stuff with no farther beneficial usage. The figure below shows the Conventional illustration of the EU Legal definition of waste 3.2 EU WASTE FRAMEWORK DIRECTIVE The Directive requires all Member States to take the necessary steps to guarantee that waste is recovered or disposed of without jeopardizing human wellness or doing injury to the environment and includes permitting, enrollment and review demands. The Directive besides requires Member States to take appropriate steps to promote foremost, the bar or decrease of waste production and its injuriousness and secondly the recovery of waste by agencies of recycling, re-use or renewal or any other procedure with a position to pull outing secondary natural stuffs, or the usage of waste as a beginning of energy ( Department for Environment, Food and Rural Affairs, 2009 ) . 3.3 UK WASTE MANAGEMENT POLICY The UK Waste Policy is developed from the thought of sustainable development. This policy promote recreation from landfills by enforcing high revenue enhancement levies on landfill site, cut down the sum of waste produced by the commercial sector, and finally promote re-use and recycling of stuffs. 3.4 WASTE HIERARCHY Figure 3.1 Waste hierarchy 3.5 TYPES OF WASTE Municipal Solid Waste Hazardous/Radioactive Waste Sewage Sludge Medical/Clinical Waste Agricultural Waste Industrial and Commercial Waste Other Waste e.g. building and destruction industry waste, mines and quarry waste and power station ash, Fe and steel scorias ( Williams, 1999 ) . There are besides two different sorts of component fraction in a waste watercourse ; The Organic fraction i.e. Biodegradable and the Inorganic fraction. 3.5.1Municipal Solid Waste This is composed of/includes chiefly household waste, with commercial and trade waste which is collected or disposed of by a municipality within an country. The composing of MSW watercourse varies, depending upon socio-economic factors, geographical locations, clime, population denseness and degree of industrialisation etc. for illustration in US and other industrialised states where value is placed on clip, consumers have adapted to the outlook of utilizing disposable at all times, thereby driving packaging and wrapping engineerings to a new degree, in add-on with the decayable waste from nutrient materials. The energy fraction contained in stuffs of this type of waste watercourse can be between 75 to 90 % . Whereas in less developed states where the waste watercourse is composed dominantly of decayable fraction i.e. groceries, veggie and organic stuffs with infinitesimal packaging stuffs, the energy content will be much lower ( Murphy, 2002 ) . Topographic point Sum OF MSW Kumasi, Ghana 365000 metric tons in 2006 China 180 million metric tons expected for 2010 United kingdom 34 million metric tons in 2007/2008 USA 190 million metric tons in 2009 Australia 43.8 million metric tons in 2006/2007 Ontario 267000 metric tons in 2007 Table 3.1 Average sum of MSW generated in different portion of the universe Data from Thermal Processing of Waste, J C Jones 2010 Fig 3.2 Municipal solid waste disposal tracts in US Data from US EIA 2010 3.5.2 Hazardous Waste Hazardous Waste is waste which contains substances that are considered to be unsafe to wellness and society. This includes substances which are reactive, infective, harmful, toxic and caustic etc. illustrations are chemicals such as, H nitrile, sulfuric acid, hydrofluoric acid etc. explosives such as dynamite, ammo etc. H2O reactive chemicals such as K, phosphoric, sodium hydride etc. In USA, estimate arisings of jeopardy waste is 275 million metric tons, UK 4.5 million metric tons, Germany 6 million metric tons, Spain 1.7 million metric tons ( Williams, 1999 ) . 3.5.3 SEWAGE SLUDGE Sewage Sludge is normally generated at the waste H2O intervention installation. It is a byproduct of the intervention of natural sewerage from domestic families, which may besides include commercial and industrial waste. The sewerage is composed chiefly of H2O, but after intervention, the wet stuff is concentrated to organize sewerage sludge ( Williams, 1999 ) . They are solid, semi-solid or bio solid in nature. Harper-Collins Dictionary of Environmental Science defines Sewage Sludge as a semi-solid mixture of bacteriums, virus-laden organic affair, toxic metals, man-made organic chemicals, and settled solids removed from domestic and industrial waste at sewerage intervention workss. ( Renewable Energy Institute ) The sewerage sludge intervention undergoes both aerophilic and anaerobiotic digestion and the concluding treated sewerage sludge is either land filled, spread on land as fertilisers or incinerated. Recent developments have shown that biogas can be produced during anaerobi otic digestion. 3.5.4 CLINICAL WASTE Clinical Waste is chiefly produced/waste originating from wellness Centres, infirmaries and nursing places etc. Examples include drugs, panpipes, acerate leafs, blood, human or carnal tissue etc. Approximately 0.3 1000000s metric tons of clinical waste arises in the UK yearly. Majority of clinical waste are incinerated ( Williams, 1999 ) . 3.5.5 AGRICULTURAL WASTE Agricultural waste is godforsaken watercourses by and large produced from agricultural activities. They are produced within agricultural premises and they include organic stuffs such as slurry, manure from farm animal, silage wastewater and harvest residues. It is estimated that about 700 million metric tons of agricultural waste is produced in OECD states. UK besides produces big tunnage, 80 million metric tons estimated from housed farm animal entirely ( Williams 1999 ) . 3.5.6 INDUSTRIAL AND COMMERCIAL WASTE These are types of waste watercourse that arises from both industrial and commercial sectors such as hotels and catering, nutrient, drink and baccy fabrication industries, metal fabrication industries, lumber and wooden furniture industries, mechanical and electrical industries, conveyance and communicating industries etc. The typical composing of this waste streams differs and really broad. A study carried out by Environmental Agency of some 4,500 commercial and industrial concerns in England in 2002/2003 showed that commercial waste amounted to 30 million metric tons and industrial waste 38 million metric tons ( meitnerium ) . In that study, the chief sectors bring forthing C A ; I wastes were retail ( 12.7mt ) , nutrient, drink and baccy ( 7.2mt ) , professional services and other ( 7.1mt ) , public-service corporations ( 6.2mt ) , the chemicals industries ( including fiber, gum elastic and plastics ) ( 5.3mt ) , basic metal industry ( 4.8mt ) and hotels/catering ( 3.4mt ) ( Defra, commercial and industrial waste in England, 2009 ) . 4 ENERGY RECOVERIES FROM WASTE TECHNOLOGIES Energy is recovered from waste either through thermic burning or biological/chemical reactions. The energy recovery procedure produces electricity straight through burning, or produces man-made and combustible fuel i.e. methane. 4.1 Incineration Incineration with energy recovery is the controlled burning of waste and it is the most broad spread waste to energy execution. It involves the burning of waste watercourses at high temperatures and the heat produced can be used to drive a turbine in order to bring forth electricity and territory warming. Waste stuffs or fuel are fed into incinerators in two ways, the mass fired/burning systems and decline derived fuel ( RDF ) fired systems. The mass firing involves minimum processing ; the full assorted municipal solid waste is fed into a furnace without any removal/separation of reclaimable and non combustible stuffs. For RDF fired engineerings, MSW undergoes pre-treatment, separation of non-combustible and reclaimable stuff which is known as RDF. RDF fired systems has a higher energy content compared to unrefined MSW because of its homogeneousness ( Tchobanoglous, Thiesen and Vigil, 1993 ) . There are assorted types of incinerator works design: moving grating, fixed grating, rotary-kiln, and fluidized bed incinerator. 4.1.1 Traveling Grate This can besides be called Municipal Solid Waste incinerators. The traveling grating enables the motion of waste by a waste Crane at one terminal of the grating through the burning chamber to the ash cavity at the lower terminal. The burning air is supplied through the grating prevarication below. Cooling of the grating itself is indispensable for the mechanical strength of the grating. One individual traveling grate boiler can manage 35 metric metric tons of waste per hr, and 8,000 hours per twelvemonth. 4.1.2 Fixed Grate This is a simpler type of incinerator. It is made of a brick lined compartment with a fixed metal grating above the lower ash cavity, with one gap for burden and another gap in the side for taking noncombustible solids known as cinders. 4.1.3 Rotary kiln It is largely used by municipalities and big industrial workss. Rotary kiln incinerators have 2 Chamberss, primary and secondary chamber. In the primary chamber, motion and transition of solid fraction of the waste to gases and partial burning occurs while the secondary chamber completes the gas stage burning reactions. 4.1.4 Fluidized Bed Fluidized Bed Combustion ( FBC ) is a burning engineering used in power workss. FBC developed from attempts to happen a burning procedure that is able to command pollutant emanations. Advanced fluidized bed burning offers a feasible power coevals technique. In fluidized bed burning, a strong air flow is forced through a sand bed, which keeps the waste suspended on wired air currents and takes on fluid like character. Due to the turbulent commixture, the waste and sand are to the full circulated through the furnace. 4.2 BALDOVIE WASTE TO ENERGY PLANT The Baldovie waste to energy works is a province of the art installation commissioned in Dundee in 1999, to replace a waste disposal incinerator due to its inability to run into EU demands on emanations. The works is run by a joint venture between Dundee metropolis council and private sector spouses. The joint venture is jointly called Dundee energy recycling limited ( DERL ) . The works processes 120,000 metric tons of waste yearly and generates electricity to run into its ain demand ( about 2.2MW ) and besides supply to the populace ( about 8.8MW ) . Separation techniques carried out before burning removes and recovers ferric metals which can be resold ( Gazetteer for Scotland, 2010 ) . 4.3 LANDFILL GAS CAPTURE Landfill is a waste disposal site where waste is deposited onto or into the land. When waste is deposited, it undergoes assorted debasement procedure which produces gas chiefly methane. Modern landfills have gas recovery systems, where the landfill gas is extracted and can be used for production of steam, heat and electricity ( Dewulf and Langenhove 2006, p.248 ) 4.4 ANAEROBIC DIGESTION Anaerobic intervention engineerings are used throughout the universe for effectual intervention of organic waste. This engineering is peculiarly attractive because the energy required for runing the procedure is minimum compared to energy required for aerophilic procedure. Anaerobic digestion is a complex biogenic procedure which involves the microbic debasement or transition of organic waste in a closed reactor vas ( absence of air ) to bring forth gas chiefly methane ( 55-65 % ) , CO2 ( 35-45 % ) , and hint sums of N2, H2 and H2S, depending on factors such as the composing of waste, organic burdens applied to the digester, clip and temperature. The methane-rich biogas which can be combusted to bring forth heat and electricity In general anaerobiotic digestion is considered to happen in three phases: A ] Liquefaction or polymer dislocation ; B ] Acid formation ; and C } Methane formation Substrates for anaerobiotic digestion includes waste H2O from nutrient processing, breweries, distilleries etc. sewerage sludge, carnal waste, farm residues. 4.5 GASIFICATION AND PYROLYSIS Gasification is defined as a partial oxidation/combustion of biomass and assorted combustible waste/carbonaceous fuels to bring forth gas. This gas can be used in internal burning engines and gas turbines to bring forth electric power. Pyrolysis is a thermic procedure which involves the dislocation of organic stuffs in waste under force per unit area in the absence of O. The pyrolysis procedure produces a liquid residue and gas which can be combusted to bring forth electricity. The chief difference between the two systems is that, pyrolysis system use an external beginning of heat to drive the endothermal pyrolysis reaction in an O free environment, whereas gasification systems are self-sustainable and utilize air or O for partial burning of solid province ( Tchobanoglous, Thiesen and vigil 1993 ) . 5 Decision Energy from waste has been evaluated based on their ability to cut down the emanation of pollutant into the ambiance, minimise waste, and generate heat and power. With the recent development of different engineerings that have been able to treat waste to bring forth energy with high efficiencies, waste to energy engineerings can be considered to be feasible substitute/option for fossil fuels for electricity coevals and besides in minimizing of waste accretion.

Wal-Mart Stores, Inc. in 2008 Managements Initiatives to Transform the Case Study

Wal-Mart Stores, Inc. in 2008 Managements Initiatives to Transform the Company and Curtail Wal-Mart Bashing - Case Study Example Wal-Mart Stores, Inc. in 2008 Management’s Initiatives to Transform the Company and Curtail Wal-Mart Bashing Whereas, the vision statement is â€Å"If we work together, we’ll lower the cost of living for everyone†¦we’ll give the world an opportunity to see what it’s like to save and have a better life.† (Forfan, â€Å"Wal-Mart Stores Mission Statement - People, Saving Money, Living a Better Live†; 2Wal-Mart Stores, Inc., â€Å"10 Rules for Building a Business†) Strategy, leadership, or execution contribute towards Wal-Mart’s success but, the single biggest factor that accounts for Wal-Mart’s success was its strategies for prioritizing low-cost/ differentiation strategy (Zimmerman, â€Å"To Boost Sales, Wal-Mart Drops One-Size-Fits-All Approach†). Wal-Mart values include service towards the customers, respect individual, strive for quality and perform with integrity. The proposed working environment values of the company were focused on stakeholder requirements, respects towards workers, quality towards shareholder as well as brand value and performance with cooperation (3Wal-Mart Inc., â€Å"Culture†). Wal-Mart corporate culture emphasizes conservative, religious, and family-oriented business. (Hayden, Lee, McMahon and Pereira, â€Å"A Case Study on Wal-Mart Stores Inc.†). Wal-Mart business practice in present scenario focuses on the culture of working together in order to fulfill the purpose of helping people to save money and live the life in better way in accordance to its business strategy (3Wal-Mart Inc., â€Å"Culture†).

Environmental management and quality system Essay

Environmental management and quality system - Essay Example Some such efforts towards environmental protection made by the company are high quality insulation throughout the company premises, de-stratification fans that helps re-circulate high level warm air and aluminum framed double glazed window units. In addition, the company has recycling stations throughout the company premises. This helps them recycle nearly five tonnes of plastic every year. As a result of these steps, the company has reduced the amount of waste it sends to landfill sites by 53% between 2006 and 2007. The recycling projects recycle cardboard, plastic cups, paper, metal, wood and plastics (Press Exposure). The company has its own environmental policy that states that the company will try to meet and exceed the various environmental protection legislations by introducing minimisation, reuse, and recycling. For its excellent environmental management system, the company has won ISO14001:2004 certification. Also, following the Waste Electrical and Electronic Equipment Directive guidelines, the company makes a contribution to the Product Recycling Fund. Thus, the environmental protection measures by Slingsby include making its manufacturing, warehousing and distributing centers effective through repairs and energy efficient systems, and improving office environment through the installation of ECA approved products. Also, there is waste management system that considerably reduces the disposal of wastes at landfill sites. In order to see that these measures are properly taken, there are meter reading, invoices, and other internal and external measures. A look into the concept of Quality Management proves that the purpose is to consistently meet or exceed customer requirements through management practices which will result in long term success through customer satisfaction. The company has already won ISO9001 that is the result of improvement of indirect operation by standardization. Admittedly, quality