The Relationship Between Socioeconomic Positions And The...

Many studies have shown that socioeconomic status that people have is associated with their health status, which means the differences among people’s socioeconomic status would therefore lead to health inequality in this society. This essay addresses the relationship between socioeconomic positions and the incidence of type 2 diabetes and obesity, and discusses the reasons why health inequality exists by applying to four explanations, including materialstructural resources, naturalsocial selection, culturebehaviour and historical context. Start with introducing Type 2 diabetes and its related health issue obesity. Type 2 diabetes happens to people whose body is unable or resist to produce enough insulin to maintain stable blood glucose level, which causes the blood glucose level too high for the body thus leads to type 2 diabetes. Some of them are genetic related while some of them are preventable that it usually happens in the middle-aged due to their unhealthy daily habits, such as unhealthy diet and physically inactive attitudes.(MoH, 2013) As well, too much energy intake and lack of exercise means energy consumption more than energy use, to which extent, increasing the risk of developing type 2 diabetes. (MoH,2016) Type 2 diabetes is related to obesity, because high food energy intake exacerbates the intracellular stress that induces insulin resistance, hence making the body incapable to secrete enough insulin to overcome the higher insulin resistance and causingShow MoreRelatedThe Prevalence Of Overweight / Obesi ty1616 Words   |  7 PagesPICOT Statement: POPULATION/PATIENT PROBLEM: Both researchers studied the incidence of overweight/obesity in African-American children. One related it to the low socioeconomic status of the caregivers (SEP) and this study/research was conducted in Pitt County, North Carolina. The other research, four childhood obesity perceptions among African-American caregivers in a rural area Georgia community relates overweight/obesity on the parents’ level of education, income, eating habits and lack of physicalRead MoreCurrent Epidemiology of Diabetes in the Uk4303 Words   |  18 PagesDiabetes- current epidemiology and measuring variables at a local level Introduction Diabetes mellitus (DM) is not classed as single disorder as it represents a series of conditions associated with high blood sugar which are cased in turn by defects in insulin secretion or the effectiveness of insulin or both. It is usually diagnosed by evidence of hyperglycaemia in a fasting state (gt;7.1 mmol/l plasma glucose) or threw an oral glucose tolerance test (OGTT)( gt;11.1mmol/l plasma glucose)Read MoreDorothea Orems Nursing Theory Essay2008 Words   |  9 Pageseducation geared towards specific socioeconomic groups will be more cost effective and beneficial in the management of chronic disease. Studies indicate that patients involved in self management of disease processes often have better patient outcomes. Obesity has become a very critical problem in the United States. According to the Centers for Disease Control and Prevention (CDC, 2011) in the past two decades there has been an increasingly dramatic increase in obesity seen within the United StatesRead MoreHealth Advocacy Campaign4102 Words   |  17 PagesHealth Advocacy Campaign Childhood obesity is considered one of the major pressing health issues of our century. The rate of childhood obesity has increased alarmingly, with the number of obese children under five globally standing at over 42 million today. Approximately 35 million of obese children are living in the developing countries. According to the World Health Organization (WHO) children who are obese and overweight are very likely to stay obese into their adulthood; further, they standRead MoreEffect of Media on Eating Habits3709 Words   |  15 PagesDisease Control and Prevention is poor diet and physical inactivity (Schneider, 2006, p. 270). Trends that lead to poor diet and physical inactivity, eventually obesity in adults and children alike, stem from habits that form early on in childhood. This creates an endless cycle that perpetuates from generation to generation. Obesity is currently an issue that threatens the majority of Americans and its prevalence has increased substantially in the last three decades (Schneider, 2006, p. 272)Read MoreCardiovascular Disease ( Cvd )9447 Words   |  38 PagesBackground and Literature Review Cardiovascular Disease (CVD) The phrase cardiovascular disease encompasses all ailments involving the conditions of the heart as well as those of the blood vessels. The major types of CVD prevalent in Australia are coronary heart disease and stroke, together with heart failure/cardiomyopathy. One of the leading causes of mortality in Australia today is cardiovascular disease (CVD) with one in every six Australians affected by the disease resulting in more than 3.7Read MoreCommunity Profile Essay5395 Words   |  22 Pages27.7%. 50 - 74 year olds are 27.2% with the UK at 26.9% and the over 75s are 7.1% with the UK at 7.9% [ONS, 2011]. These figures show the age groups within both the Stockton-on-Tees and the UK are very similar. There were 25,109 people aged between 15-24 years old in Stockton-on-Tees in 2012, which according to statistics is the age group most at risk of contracting a sexually transmitted infection [JSNA Stockton, 2012]. The figures for gender in the Stockton-on-Tees area are 51% of populationRead MoreUndernutrition10134 Words   |  41 Pagesdevelopment, especially during the first two years of a child’s life, is largely irreversible. A child’s poorer school performance results in future income reductions of up to 22 per cent on average. As adults, they are also at increased risk of obesity, diabetes and cardiovascular disease. Scaling Up Nutrition (SUN)     period from birth to two years of age is the â€Å"critical window† for the promotion of good growth, health, and behavioral and cognitive developmentmothers are empowered to initiate breastfeedingRead More2006 Arroyo Case Study31910 Words   |  128 Pagesprepared for use in the 2006 Malcolm Baldrige National Quality Award Examiner Preparation Course. The Arroyo Fresco Community Health Center Case Study describes a fictitious nonprofit organization in the health care sector. There is no connection between the fictitious Arroyo Fresco Community Health Center and any other organization, either named Arroyo Fresco Community Health Center or otherwise. Other organizations cited in the case study also are fictitious, except for several national and governmentRead More2006 Arroyo Case Study31910 Words   |  128 Pagesprepared for use in the 2006 Malcolm Baldrige National Quality Award Examiner Preparation Course. The Arroyo Fresco Community Health Center Case Study describes a fictitious nonprofit organization in the health care sector. There is no connection between the fictitious Arroyo Fresco Community Health Center and any other organization, either named Arroyo Fresco Community Health Center or otherwise. Other organizations cited in the case study also are fictitious, except for several national and government

Eddie Mabo Fighting for Indigenous Land Rights in Australia

Many people have tried to close the gap between indigenous and non-indigenous people in many different and inspirational ways. Eddie Mabo was a moving man that, from his works has changed the lives of many aboriginal/indigenous people today. I believe that Eddie Mabo has influenced modern society with his beliefs and values of the Indigenous people and their rights. Eddie Mabo fought for the rights of the people of Mer Island, so they would not lose their home, memories and life. Eddie Mabo has had such an impact on today’s society for indigenous people and the Meriam people were facing racial discriminations in their community. Some of Eddie Mabo’s many achievements include â€Å"campaigning for better access for Indigenous peoples to legal and medical services, housing, social services and education and establishing the Townsville Black Community School.† (Stephenson, 1989-1999). Mabo believed that it was along for the Australians along with Terra Nullius, a legal document which held that Australia as unoccupied at the time of colonization. â€Å"I was sitting in a car breastfeeding my six month old son, who was born the day before I buried my dad, when I heard on the radio we had won the case. I started crying and thinking that if my father was alive he would be dancing. I then heard the sound of thunder and said to my son ‘hear that, he is dancing.† (Australian Government, 2014). Eddie Mabo has contributed to the Australi an History a lot with his beliefs. Firstly, he hasShow MoreRelatedMabo eal822 Words   |  4 Pagesï » ¿The film Mabo demonstrates the importance of family in Eddie Mabos struggle for land rights. The story film Mabo, in leading up to its supportive and motivated revolution in Australias history, is assist by Eddies family determination to win Eddie Mabos land rights case and thus restore justice to indigenous people. The foundations of his familial and social assitance can be seen in his encounter with white authority and his later involvement in the union movement, as well as his role asRead MoreThe reconciliation of the Indigenous, has played a significant part in the history of Australia and600 Words   |  3 Pagesthe Indigenous, has played a significant part in the history of Australia and the lives of many Indigenous Australian’s including Eddie Mabo. Eddie Mabo has been actively involved in Indigenous rights and reconciliation between 1981 and his death in 1992. Reconciliation has been an important part of Australia’s history as it has impacted many generations of Indigenous Australian’s throughout history. Eddie Mabo has played a significant rol e in the process of reconciliation between Indigenous AustraliansRead MoreThe National Apology of 20081258 Words   |  6 Pagestowards the Indigenous owners of our land. A part of this movement towards reconciliation is the recognition of Indigenous Australians and Torres Strait Islanders rights to their land. Upon arrival in Australia, Australia was deemed by the British as terra nullius, land belonging to no one. This subsequently meant that Indigenous Australians and Torres Strait Islanders were never recognised as the traditional owners. Eddie Mabo has made a highly significant contribution to the rights and freedomsRead MoreMabo Film Analysis1940 Words   |  8 Pagesjoined with the Indigenous rights and cultural experts, Bella Simmons and Sarah Nel. Today on Aboriginal affairs, we will be exploring the representations of Aboriginal and Torres Strait Islander people within the Australian docudrama TV film, ‘Mabo’. Released in 2012, Australian Broadcasting Corpor ation and Blackfella films have created a film that reflects the trials and tribulations Indigenous and torres strait islanders had to face. Rachel Perkins, Director of the film ‘Mabo’ helps us recogniseRead MoreThe Freedom Of Speech And Democratic Rights1637 Words   |  7 Pagescountry in order for citizens to enjoy the rights, responsibilities and equity the country has to offer. Many nations across the world have some type of citizenship model which allows the individuals of a country to enact their political and legal rights destined to them from birth simply because they are human beings and citizens of such countries. Political and legal rights are protected and known as first generation negative rights; they include the rights fundamental to political and legal freedomsRead MoreAustralian Films - Screening Responces3687 Words   |  15 Pageschange. The inability to adapt to frequent changes within society is what may have defined Australia as a nation, and le d to the creation of a different national identity from its roots, of British colonization. Alas, during these political changes, Australia was a great conservative and Catholic nation, that believed in the dominance of white culture; Evident in their policies such as The White Australia policy and the policy of Assimilation. The use of real news footage reinforces the pre-existingRead MoreCross Cultural Reflective Journal Report2594 Words   |  11 Pages2004). 1968. I was born in a year of hostility, demands and fights for independence and human rights. Americans were fighting in Vietnam, and protesting at home for African-American civil rights. Bra-burning protests demanded women’s rights. Activist Martin Luther King Jr and politician Robert F Kennedy were assassinated for humanitarian beliefs (1968 Timeline, 2013). Amidst the fights for civil rights, independence was granted to a tiny island in the South Pacific, the republic of Nauru. Here IRead MoreAustralia s Human Rights Record2193 Words   |  9 PagesIn Australia human rights have been honored and legislated in most sectors of society with the majority of the population living prosperous lives without much predicament. Moreover, the general populace has the ability to copiously exercise their human rights without opposition. Thus, Australia is well known for possessing one of the highest wellbeing rates in the world. However, this wasn’t, and arguably is still not t he case for Indigenous Australians. Indigenous Australians have been statistically

Vitamin D And Hypothyroidism Samples †MyAssignmenthelp.com

Question: Discuss about the Vitamin D And Hypothyroidism. Answer: The assignment deals with the discussion on the topic vitamin D and hypothyroidism supporting with the different relevant research articles. As per the literature review, vitamin D inadequacy is associated with autoimmune disease. This vitamin plays a key role in maintaining the balance between cell mediated (Th1) and the humoral (Th2) immune system by regulating the Th3 cells. In an experimental study, vitamin D deficiency resulted in low thyroid hormones. It means the vitamin has direct impact on the thyroid gland[1]. According to the genetic studies both the thyroid hormone and the vitamin D bind to the same steroid hormone receptors. This results in the autoimmune diseases, where a different gene in Vitamin D receptor has been found to predispose patients to Hashimotos thyroiditis and Graves disease. Graves disease is associated with the polymorphism in the vitamin D gene. Its deficiency directly modulates the Graves hyperthyroidism which may have been induced by the thyrotropin receptor immunization in a mice model. In the human mole it was found that the inflammatory responses in T cells and human thyroid cells was inhibited by the Vitamin D analog[2]. Many researchers studied the impact of the vitamin D on the thyroid physiology. It was found that the autoimmune thyroid disease is linked to vitamin D deficiency. This vitamin is found to benefit the autoimmune-mediated thyroid dysfunction. The vitamin is found with little role in the regulation of insulin secretion and insulin resistance. Vitamin D is also associated with the balancing of blood sugar. Thyroid physiology is adversely effected with the dysglyemcia and insulin resistance[3]. Mackawy et al, examined the relationship between vitamin D deficiency and hypothyroidism. The study results showed that the patients diagnosed with hypothyroidism were found to have vitamin D deficiency and hypocalcaemia. These deficiencies were in turn associated with the severity and degree of hypothyroidism. In short, these results showed the linkage of hypothyroidism in patients with calcium and vitamin D levels. When compared to the controls the serum levels of both the elements were found to lower in hypothyroid patients that signifies a positive association between hypothyroidism and vitamin D as well as calcium. However, there was a negative correlation of these factors with the TSH levels[4]. Singh et al., in similar study emphasised on the imunomodulatory role of the vitamin D on the endocrine system. In this study 40 healthy people and 40 hypothyroidism patients were recruited for measuring the Serum vitamin D (25-OH) levels and Thyroid hormones (TSH, T3 and T4) levels. The results using the ELISA and spectophotometric method, it was found that the level of each of them was significantly lower in the hypothyroid patientswhen compared to the healthy subjects. There was difference of these levels between males and females with later showing lower levels of these factors. These results indicated that the hypothyroid patients suffered from the hypovitaminosis D. The hypovitaminosis D iss significantly associated with degree and severity of the hypothyroidism[5]. Hypothyroid patients with vitamin D showed improvement in the condition by taking Vitamin D as it caused TSH suppression[6]. In conclusion, the literature review indicates the association between vitamin D deficiency and hyperthyroidism. As per these findings, the patients with hypothyroidism should be advocated for vitamin D supplementation. Bibliography Mackawy, Amal Mohammed Husein, Bushra Mohammed Al-Ayed, and Bashayer Mater Al-Rashidi. "Vitamin d deficiency and its association with thyroid disease."International journal of health sciences7.3 (2013): 267. Musa, I. R., Gasim, G. I., Khan, S., Ibrahim, I. A., Abo-alazm, H., Adam, I. (2017). No Association between 25 (OH) Vitamin D Level And Hypothyroidism among Females. Open Access Maced J Med Sci. 2017 Apr 15; 5 (2): 126-130. Singh, Vivek, Sunita Singh, and Yogesh Kumar Rai. "Vitamin D Induced Hypothyroidism."Indian Journal of Public Health Research Development7.3 (2016). Talaei, Afsaneh, et al. "The Study the Effect of Vitamin D on Hypothyroidism."ISMJ20.3 (2017): 301-307. Yasuda, Tetsuyuki, et al. "Serum vitamin D levels are decreased and associated with thyroid volume in female patients with newly onset Graves disease."Endocrine42.3 (2012): 739-741.

The Appeal and Value of Fantasy Stories and Films Essay Example

The Appeal and Value of Fantasy Stories and Films Essay Man, as a species, is creative and has been throughout the ages. They put their creativity to use in the making of fantasy stories and films, many of which have made both positive and negative impacts on society today. The question is: are fantasy stories and films merely an escape from reality? Or do they offer us something more? I am of the view that fantasy stories and films are appealing and do have value in today’s society. The interesting storylines, their role in bringing hope and positivity to the world and their economic value all play a part in the appeal and value of fantasy stories and films. Fantasy stories and films have managed to pique the interest of children worldwide due to the colourful graphics and often amusing and unique storylines. Though the stories conveyed are often fictional, they often carry certain morals and values which are rubbed off on the children who read and watch these fantasy stories and films. For instance, in ‘Pokemon’, where the protagonist travels around the world to train and become the best at his craft, teaches the audience the importance of resilience and perseverance as they see their favourite characters marching on even after they have faced certain setbacks. Shows like ‘Adventure Time’ and ‘He-Man’ also depict not just human characters but animals as well and there is often a symbiotic relationship between the human protagonist and his trustworthy feline sidekick. This is also found in the Disney film ‘Bee Movie’, where human and animal work together to achieve a common goal. Child ren, who are the largest demographic to read and watch these stories and animated films, are at the age where they are most impressionable, and even subconsciously, the good-natured spirit of these films are passed down to them and they carry these value imparted for the rest of their lives. Even teenagers or adults, after reading or watching these stories and films, are reminded of the imp We will write a custom essay sample on The Appeal and Value of Fantasy Stories and Films specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on The Appeal and Value of Fantasy Stories and Films specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on The Appeal and Value of Fantasy Stories and Films specifically for you FOR ONLY $16.38 $13.9/page Hire Writer

An Unexpected Life Essay

An Unexpected Life Essay An Unexpected Life Essay Kayla Lubbers ENG 4U Mrs. McIntosh Sunday, January 20 An Unexpected Life In the novel The Book of Negroes written by Lawrence Hill, there is a lot of detail and description throughout the story; some moments being very graphic while others are peaceful and at ease. Hill gives a lot of detail and understanding to the reader of what is happening through literary techniques such as imagery, symbolism and themes to establish a relationship between the reader and the characters. Hill brings a lot of imagery into the readers mind allowing them to mentally visualize and be aware of what is happening in the scenes: â€Å"The medicine man also carried a fire in a container. Everywhere I turned, men were lying naked, chained to each other and to their sleeping boards, groaning and crying. Waste and blood streamed along the floor boards† (Hill 63). For â€Å"men [to be] lying naked† is completely unnatural. It is not normal for men to be so close especially after others strip them of their clothes; not just their clothes but their di gnity and rights as men. It is utterly shameful and depressing. This shows the brutality of these slave traders and what these slaves go through in dealing with their grim travels. These men were all â€Å"chained to each other† and unable to escape. Where one goes the rest must follow no matter what choice they had; they had no privacy or space. The way the slave traders demean the Africans brings clarification to the readers of how horrific the treatment is towards them. Just like these men have their clothes and dignity taken from them, Aminata also is put to shame by her owner Appleby, on his plantation. Appleby beats her, strips her clothes from her, rapes her, and shaves her head bald. All her pride and happiness he takes from her just like all the men on the ships, having their dignity and human rights taken from them. All these men â€Å"groaning and crying† as they travel farther and farther from their homeland in Africa is depressing. The slave traders strip these men of everything they have until there is literally nothing left for them but the air around them to breathe; and yet that is still not satisfying at all, being surrounded by dead, rotting bodies and human waste. Crying seems to be the one simple task left for them to do. These men cry not only because they are full of fear and sadness, but they cry as though they are calling out for help; like they believe someone out there is able to hear them and will come save them from the nightmare they are living. They seem like newborns coming into the world, only to cry for attention and help. These men are like babies coming into the new world that they are witnessing around them. For a person to be laying in â€Å"waste and blood† is extremely horrific. These men on the ships have no choice but to live the brutal life they now have with no way out and no escape. With these terrible conditions that they are living in, they are getting ill with sickness and dying faster than anyone would expect; being surrounded by other dead bodies, uncleanly air and little food and water. Having these men and women huddled close is a sad situation but for other times its necessary: â€Å"A bunch of us huddled together to sleep on the cold, hard sand . . . Never in Bayo had I seen numerous men and women all sleeping together. It never would have been tolerated. But here on this island, pooling our warmth in a nest of bodies gave us comfort† (Hill 108). All of the men and women together on the strange island are left to freeze throughout the night while slave traders have their own separate and warm places for sleeping. The one way the slaves were capable of staying warm was to use body heat with one another. The reader is able to understand this with the thought of a baby needing the warmth of its mother to keep calm and happy. It allows the baby to feel safe just like the slaves do when brought close together for warmth and safety. For this kind of behaviour to â€Å"never [be]

List of Halogens (Element Groups)

List of Halogens (Element Groups) The halogen elements are located in group VIIA of the periodic table, which is the second-to-last column of the chart. This is a list of elements that belong to the halogen group and the properties that they share in common: Types of Halogens Depending on who you ask, there are either 5 or 6 halogens. Fluorine, chlorine, bromine, iodine, and astatine definitely are halogens. Element 117, which has the placeholder name of ununseptium, might have some properties in common with the other elements. Even though it is in the same column or group of the periodic table with the other halogens, most scientists believe element 117 will behave more like a metalloid. So little of it has been produced, its a matter of prediction, not empirical data. FluorineChlorineBromineIodineAstatineTennessine (might behave as a halogen, at least in some respects) Halogen Properties These elements share some common properties that distinguish them from other elements on the periodic table. They are highly reactive nonmetals.Atoms of belonging to the halogen group have 7 electrons in their outermost (valence) shell. These atoms need one more electron in order to have a stable octet.Halogens are highly electronegative, with high electron affinities.The melting and boiling points of the halogens increase as you increase atomic number (as you move down the periodic table).The elements change their state of matter at room temperature and pressure as you increase atomic number. Fluorine and chlorine are gases. Bromine is a liquid element. Iodine is a solid. Scientists predict tennessine will be a solid at room temperature.

Mareting and design Essay Example | Topics and Well Written Essays - 2000 words

Mareting and design - Essay Example des the customer with a quality product which satisfies his needs, making it as one of the key reasons that brands still enjoy the popularity amongst its customers and at the same time, attract fresh clientele. The paper would be discussing the ways The Body Shop uses its brand to gain leverage against it competitors in the market and create a niche market position. The Body Shop was founded in 1976 by Anita Roddick, a social activist and environmentalist, who believed that using the natural ingredients are the best way to take care of the body and remain beautiful. It makes a huge range of body care products from natural ingredients from across the world and caters to people of all strata. There are around 700 products under different categories such as: facial skin care; make-up; bath and body; hair; fragrance; gifts and accessories (BodyShop). The products can further be categorized as per the natural ingredients like aloe Aloe Vera cream, musk oil etc. The company was taken over by L’Oreal in 2006 but has retained it brand name. The company prides in using natural products from all corners of the world and contributes to sustainable business practices by ensuring that the ingredients used in the products are from sustainable source where deforestation is not involved or cruelty to animals has not been part of business process. It subscribe to humane cosmetic standard and works towards the welfare of animals and community. Brand can broadly be defined in terms of name, symbol or design that identifies product and services of particular company which can be clearly differentiated from other products in the same category. Brand delivers value and provides the companies with competitive advantage to gain a niche market position. Kotler asserts that in the contemporary environment of highly competitive business, ‘brand building is needed because products are the same’ (Kotler, 2005). Brands ensure that they meet the changing requirements of the people.

Job Order Costing Essay Example | Topics and Well Written Essays - 1250 words

Job Order Costing - Essay Example Job order costing is applicable to job order work in factories, workshops, and repair shops, as well as to work by builder, construction, engineers, and printers. It is a highly useful procedure, and allows for these various different occupations to do their work efficiently and at the costs that were predetermined to go hand in hand with each job. In job order costing, the key is that the work is done to the customer's specifications. As a result, each job tends to be different in nature. Even if the job may seem to be exactly the same at first, often a customer will want a worker to do something different than what was originally thought to be done. For example, â€Å"job order costing is used for construction projects, government contracts, shipbuilding, automobile repair, job printing, textbooks, toys, wood furniture, office machines, caskets, machine tools, and luggage. Accumulating the cost of professional services (e.g., lawyers, doctors and CPA's), also fall into this category† (MAAW, â€Å"What Is a Cost Accounting System?†). Job Order Costing is used by companies where products or services are identifiable by individual units or batches—auto repair, tax return preparation, case in an attorney’s office, ship construction, etc. The costs attributable to a particular job are assigned directly to it. Difference between Job order Costing and Process Costing: "In Job Order Costing, Unit Cost computed by job. Many jobs are worked during the period. Costs are accumulated by individual jobs. Costs are traced and applied to individual jobs in Job order cost system. In Process Costing, Costs are accumulated by departments. Unit costs are computed by department. A single product is produced for a long period of time Costs are traced and applied to departments in a Process Cost system." (McGraw-Hill/Irwin, Chapter4, "Systems Design: Process Costing") Primary Objective in Job order Costing: When a job produces a specific quantity for inventory, job order costing permits the computation of a unit cost for inventory costing purposes. When jobs are performed on the basis of customer specifications, job order costing permits the computation of a profit or loss on each order. Since costs are revealed as an order goes through production, these costs may be compared with estimates which were made when an order was taken. Job order costing thereby provides opportunities for controlling costs. It allows the person to help try to keep costs as stable as they can, yet still find a way to make a profit. This ability helps keep both the worker and customer happy, and helps promote a better relationship between the contractor or professional and the person who is paying for the work. This can also help keep costs low, because the customer does not need to pay for services they do not need, even if the professional is capable of doing them. This way, the customer only needs to pay fo r exactly what they need from the professional. When job order or process cost methods are used, costs must be accumulated for control purposes according to the unit in which the product cost is to be stated. For example, Coal is measured by the ton, chemicals by the gallon, and lumber by board feet. Products, such as machines, automobiles and shoes are measured either by the individual unit or by a multiple

Microbes are everywhere Essay Example for Free

Microbes are everywhere Essay The experiment performed in the Lab was isolation of microbes taken from us and the environment. We used Nutrient Agar which is a growth medium used to culture microorganisms or small plants and Sabourand Dextrose Agar plates used to cultivate moulds and yeasts. The objective of it was to demonstrate that microbes are everywhere. We expected to find a variety of bacteria, moulds and yeasts. We were introduced to aseptic techniques as they help ensure that only certain microorganisms are present in the plate. These methods also guarantee that microorganisms do not escape from the specific petri dish, contaminating the laboratory and possibly causing disease. Describe features of colonies. Materials required: Nutrient Agar plate (N. A. ) Sabaround Dextrose Agar plates (S. D. A. ) 4x sterile Swabs 1x Diluent (universal bottle) Method: Firstly, NA plate was exposed to microbes from me using sterile swabs. The swab was scrubbed inside my nails and then rubbed over ? of the plate. Secondly, for the environment- the swab was dipped in diluent to moisten and then applied to the drainage pipe from the laboratory. This swab was rubbed over the second half of the plate. NA plates were incubated inverted at 37oC for 48 hours. We repeated the procedure with the SDA plate at 22oC for 5 days. All plates were labelled with our initials, part of the body/environment swabbed, incubation temperature and media used. Results obtained: Moulds are actually fungi, and they often appear whitish grey, with fuzzy edges. They usually turn into a different colour, from the centre outwards. Examples are shown below: On the right hand side we can see a circular green mould colony and round yeast colonies. Left hand side of the plate shows round bacterial colonies. The dominant colour is cream. However, we can appreciate a round colony in a pinkish colour. We can see mould colonies in a yellowish colour at the top. However, the handle’s side appears to have a darker colour and a green patch. It is interesting the way the mould has divided so rapidly that we can barely differentiate the two halves of the plate. The mould from the air conditioner could have contaminated the handle section. We can also notice small pinkish colonies in the centre of the air conditioner’s sample. The bottom of the plate has black, yellowish and light green patches. In the sample taken from my nails we could see an agglomeration of a larger number of bacterial colonies. Colonies appeared punctiform with a wavy form and cream in colour. Unfortunately we could not see any sign of growth in the sample taken from the drainage pipe. We aimed to see microbial growth of each sample with a variety of bacterial colonies with several shapes and colours. Perhaps microorganisms taken from the drainage pipe were in the lag phase of growth and needed a longer or different type of incubation. As per sample taken from the cheek we can distinguish several bacterial colonies circular in shape. Each distinct circular colony should represent an individual bacterial cell or group that has divided repeatedly. Some fungi and moulds can cause a variety of skin diseases such as athletes foot, jock itch, and ringworm. They can also cause pulmonary and internal infections. However, others are beneficial such as Penicillium which produces the antibiotic penicillin and Saccharomyces is the yeast used to make bread rise and to brew beer. Many bacteria are dangerous pathogens such as Salmonella (food poisoning), Bacillus anthracis (anthrax), MRSA responsible for many serious infections. Nevertheless not all bacteria cause diseases. Lactic Acid bacteria enhance health and protect us against pathogens and carcinogens. There are many different types of bacteria in our mouth and intestines that produce some vitamins and ferment fiber to produce short-chain fatty acids. Microorganisms are essential on Earth. On the other hand, we can appreciate the importance of hygiene in our daily lives to avoid harmful levels of pathogenic bacteria and fungi.

Guys like us are the loneliest guys in the world, They got no family, :: Free Essay Writer

Guys like us are the loneliest guys in the world, They got no family, they don’t belong no place. Discuss the theme of loneliness portrayed in of Mice and Men. â€Å"Guys like us are the loneliest guys in the world, They got no family, they don’t belong no place† Discuss the theme of loneliness portrayed in â€Å"of Mice and Men† â€Å"Of Mice and Men† by John Steinbeck is the story of two farm hands, Lennie and George working up a stake on a ranch so maybe they can buy a place of their own â€Å"An’ live off the fatta the lan’.† George is smart and small where as Lennie is a massively strong giant of a man yet as innocent and simple minded as a young child who relies on George as a protector and mentor. There is a theme of loneliness running through the book which comes from John Steinbecks own experiences of working the land. When George starts his story about what life will be like when they get a plot of land he starts it â€Å"guys like us.† He’s talking about Ranch hands and labourers like him and Lennie probably forced to search for jobs because of the economic recession at the time the book was set. The labourers were nearly always single men who have very unstable jobs and would have had to move on once the job was done (once the harvest was collected for example). Their hard itinerant lifestyle was very lonely as the men were separated from any friends they’d made as soon as their job was finished. So the ranch hands often blew all the money they’d just earned on whisky and prostitutes to drown their sorrows and forget their problems and as the men usually travelled away from their home they â€Å"don’t belong no place.† Because Steinbeck had experienced this way of life he really captures the atmosphere and loneliness of the ranch with details that make you feel like you are there. Like in the bunkhouse, not only does he describe it like he’s lived in it and knows just what it looks like, he includes details of the behaviour of its inhabitants to hint at the atmosphere of the place and bring it to life. For example â€Å"western Magazines ranch men love to read and scoff at and secretly believe† the word secretly shows how the men have to keep their real feelings hidden from the others to appear strong and survive, like any weakness would leave them vulnerable to attack. Most of the men are guarded from each other like this, Curley’s wife draws the readers attention

Analytical Paper The Departed Essay

The average trip to the theater will indulge the lesser senses, relaxing the mind while also discovering the storyline as the film progresses. When approaching a film with an analytical mindset it is important to have a deeper more developed thought process. Small details within a movie can prove to have extreme importance to the storyline sometimes having multiple meanings. While analytically watching the film The Departed it is apparent that the director Martin Scorsese uses an immense amount of symbolism along with character representation to develop the storyline. The use of animal clothing to represent the alpha male is a use of symbolism within the film that is a reoccurring. Another use of symbolism can be found in the shot of the Massachusetts State Building which entails the desire of a more lawful existence and the shot is also a reoccurring image throughout the film. The question of â€Å"what is loyalty† is a big idea that the director develops with the use of several characters along with meaningful dialogue. In Martin Scorsese’s The Departed the theme of loyalty is expressed along with the symbolism of the state building and animal clothing. In the film The Departed Matt Damon’s character Collin Sullivan infiltrates the Massachusetts State Police department as a detective who is secretly working as an informant for the Irish Mob lead by Frank Costello who is played by Jack Nicolson. Meanwhile Leonardo Dicaprio’s character Billy Costigan is placed in an undercover position within Frank Costello’s crime ring. The two informants are placed in a state of confusion as to their true identity when they become consumed with their double lives. The challenge of uncovering the identity of each other is introduced when both parties, the Police Department and the Irish Mob discover that there is a mole inside their units. Both characters reach a tragic end once their identity is reviled. Throughout the film The Departed the Irish Mob leader Frank Costello is viewed as a dominant character. This idea arises from the ruthlessness that Frank demonstrates in his criminal lifestyle. Committing multiple murders which were done in an extremely horrid manner gives supporting evidence of Frank’s dominance. Having multiple people operating under him shows that he is the leader in that he does not ask for respect he demands it. Like the lion, Frank is the king of his concrete jungle. He has a hand in every criminal occurrence and knows of everything going on in the community around him. If any person in the community rivals Frank in any way he eliminates the threat by any means, keeping him in the highest position of power. People seem to fear Frank for the threat of what he is capable of doing so if he is not respected or disobeyed in any way then severe consequences will result. Martin Scorsese takes certain scenes in which it is important for Frank to be feared and uses underlying symbolism to develop his ideas. â€Å"I’m not the cops I’m not asking†. The first scene in which animal clothing is used to show Frank dominant position is his first meeting with Billy Costigan. Frank talks down to Costigan in this scene exerting his dominance and at one point beating him repeatedly in his broken hand asking several times if Costigan is a cop. Frank uses certain dialogue to show his position of high power giving evidence that he is the king of his concrete jungle. Another scene in which Frank is shown wearing animal clothing is the scene in which Billy Costigan is meeting with Frank inside his condominium on the harbor. The true ruthlessness of Frank is yet again shown when he pulls the hand of a recently assassinated protestant man from a plastic bag. Frank then looks to Billy and says â€Å"a man can look at anything and make something out of it. For instance, I look at you and I think what can I use you for?† This entails that Frank does not truly care about Billy and that he is just another tool for Frank to use to achieve success. In this scene several responses occur, one is that Frank is a dominant tactician. An additional response comes through the symbolism of the animal clothing. This response is that Frank has an apparent disregard for human life. There is a moral obligation of people in a normal society to avoid harming one another. In the animal kingdom survival of the fittest is the law in which the animals abide by throughout daily life. Frank defies the normality of typical humans in that he has no moral obligations to take care of anyone. He eliminates anyone who interferes with his business or anyone who stands between him and accomplishing his goals. Like the lion Frank understands that if killing is the only option to keep him alive or out of jail then he will go to any end to preserve his way of life and better himself. He does what it takes to survive living life with a ruthless strong animal like persona. This idea is clearly represented throughout The Departed in which Martin Scorsese uses the symbolism of animal clothing to revel Frank’s true ruthlessness and attitude towards humans. Frank gives reason to believe that a person is only as good as what they can do for him. He is constantly setting people up to take falls for his crimes disregarding their lives family and friends. Frank’s complete disregard for the sanctity of life shows that he is a true animal in which Martin Scorsese portrays perfectly in The Departed. Without the aid of small symbolism within The Departed it would be much harder to distinguish characters true identity and intentions. The true intentions of Collin Sullivan or Detective Sullivan are most prevalent in the instances in which he is engulfed and mesmerized by the shots of the Massachusetts State Building. Collin desires to escape his criminal lifestyle by achieving success as a lawyer. He also desires to be a high-class citizen and to make something of himself unlike his father. Whenever placed in situations of trouble a shot of the Massachusetts State Building is shown it is evident that this is another use of symbolism by director Martin Scorsese. During the opening scenes of The Departed it is shown through the director’s choice of shot along with meaningful dialogue that Collin Sullivan desires to achieve greatness outside of the criminal realm. While sitting on a park bench Barrigan, Sullivan’s coworker says to Sullivan as he gazes in awe at the sight of the State Building â€Å"What are you looking at? Forget it. Your father was a janitor, and his son’s only a cop†. This first scene of the State Building opens a door to view Collin’s internal desire to have a more distinguished lawful existence rather than that of a rat lacking honor and integrity. As the film progresses it is shown through Collin’s dialogue that he is attending law school showing that he has ambitions to someday become a lawyer or politician leaving his current position which lacks honor behind. While being shown an apartment Collin is once again caught in a trance peering through his soon to be apartment window at the State Building. The realtor then makes the remarks â€Å"You move in your upper class by Tuesday†. This once again exemplifies the desires of Collin to become a person of class or someone who is respected and held in high regards by others. In the concluding scenes after the films climax which included the deaths of Costello, Costigan, and Queenan Sullivan enters his apartment to find Detective Dignam waiting to assassinate him. As Sullivan falls to the apartment floor the ever-present symbolism of the State Building is shown again. While Sullivan’s life ended in a tragic manner it is evident through the symbolism that he desired and could have achieved a lawful existence. If placed in a different environment at a young age Collin could have possibly become a great law enforcement official rather than a criminal.

‘Of Mice and Men’ By John Steinbeck Essay

‘Of Mice and Men’-By John Steinbeck is a story involving two very different main Characters-George Milton and Lennie Small, who are trudging difficulty through life with a dream to someday own their own ranch. One of the main themes over the course of the novel is loneliness, and this is quickly introduced within the first chapter or two, as well as giving us an insight as to what life was like during the depression (1929-1938). As Lennie is very simple minded, he is always getting into trouble, and at once point Lennie and George found themselves fleeing from their old working situation in Weed. They later find themselves work on another ranch, where we meet many other characters living similar lives full of unhappiness and despair. We meet the old swamper- Candy, who has only one working hand after getting one caught in a machine. It is here that we begin to get an idea of the lonely life Candy leads, considering he only has one companion- his dog, which was later put out of its misery by another ranch worker who saw it as unfit and a nuisance to itself. Another example of an unhappy character is the stable buck- Crooks. Crooks falls victim to racial discrimination and finds himself living in almost complete solitude because he is black. It seems as though Crooks will always lead a terrible and hopeless life because of the little to no respect or acknowledgement that the other ranch workers give him. The only way Crooks could make companion would be to find another black person, which does not seem very likely. Years of disrespect and neglect from those around him have turned Crooks into a mean and insecure man with absolutely no rights whatsoever! However, he retreats to his reading and his work, looking after the horses. Crook’s does also play horse-shoes, which the men praise him for as he was very skilled in the game. Furthermore, the wife of the boss’s son- known only as ‘Curley’s Wife,’ experiences sexual discrimination. She lives on a ranch where the majority of the people of the people are males, with nothing to do but play records or wander about the ranch looking for somebody to talk to. We learn how Curley’s Wife is trapped in a loveless marriage and how dreams that she could have made much more of herself by perusing her career as an actress had she have not married Curley. In the novel she is not given a name and this shows readers just how insignificant she is to Curley, as well as the other ranch workers. Most of the characters experience some type of prejudice at some point throughout the novel. The only person to really seem happy with the way their life is going si Slim- who is looked up to bye everyone working at the ranch including Curley. Curley’s wife, Crooks and Candy are all lonely with no real friendships with anybody. Although it may seem George and Lennie are unhappy or angry, they are never lonely because they have each other. The thought of someday owning their own ranch pushes them to keep working in such poor conditions, earning only $50 a month! I felt sorry for most of the characters (excluding Curley) as they did not have much to show for the lives they have lived so far with little or no chance of marriage, or remarriage. During this novel, readers experience such themes as racism, prejudice, and discrimination, as well as learning just how lonely and hopeless life seems without having any friends or companions.

Free Essays on Fashions Of The 60s

Why did some styles become so popular and remain popular though out the 60s’? Some were different enough to become a huge hit with teens, while others were not as lucky. From the peace symbols that attempted to keep the war far from home, to the ban the bra movement that gave women a group to belong to. In the Mod movement many teens started their own kind of fashion that was fresh and new, too unique for some though. The fashions of the 60s’ reflected the turbulence and rebelliousness of the era. The peace sign represented many people fighting for the war to stay far from home, and to keep it there. The peace symbol became a strong representation of hope for teens; it gave them a ground to stand on. To the Mod movement that started in Britain and slowly traveled to America that started the whole fashion uniqueness. It was mostly influenced by, art, music and drugs. The different cuts and colors of fabric really helped in the search to find whom they were. It was time to break away from the boring clothes of the 1950s and break in to a whole new line of style. With the new vibrant colors and slimming cuts fashion had taken off like a rocket. The youth of the world began to see that nothing could hold them back from being individual. They started wearing clothes that no one would criticize because they were too fancy. The skirts of the 60s had shorter and shorter hemlines. Some say this â€Å"led to the moral decline of society and youth† (SK). As the new styles emerged so did the way teens thought, not so much for themselves but for their country and what they believed in. The peace symbol really spread far and fast, pretty soon it was all over. It was on shirts, cars, jewelry, and many other things. Organizations really helped with the overwhelming question of â€Å"Where do I belong?† Such as the Ban the Bra movement, it helped young women know and feel like they belonged to something important. Women’s rights really came aliv... Free Essays on Fashions Of The 60's Free Essays on Fashions Of The 60's Why did some styles become so popular and remain popular though out the 60s’? Some were different enough to become a huge hit with teens, while others were not as lucky. From the peace symbols that attempted to keep the war far from home, to the ban the bra movement that gave women a group to belong to. In the Mod movement many teens started their own kind of fashion that was fresh and new, too unique for some though. The fashions of the 60s’ reflected the turbulence and rebelliousness of the era. The peace sign represented many people fighting for the war to stay far from home, and to keep it there. The peace symbol became a strong representation of hope for teens; it gave them a ground to stand on. To the Mod movement that started in Britain and slowly traveled to America that started the whole fashion uniqueness. It was mostly influenced by, art, music and drugs. The different cuts and colors of fabric really helped in the search to find whom they were. It was time to break away from the boring clothes of the 1950s and break in to a whole new line of style. With the new vibrant colors and slimming cuts fashion had taken off like a rocket. The youth of the world began to see that nothing could hold them back from being individual. They started wearing clothes that no one would criticize because they were too fancy. The skirts of the 60s had shorter and shorter hemlines. Some say this â€Å"led to the moral decline of society and youth† (SK). As the new styles emerged so did the way teens thought, not so much for themselves but for their country and what they believed in. The peace symbol really spread far and fast, pretty soon it was all over. It was on shirts, cars, jewelry, and many other things. Organizations really helped with the overwhelming question of â€Å"Where do I belong?† Such as the Ban the Bra movement, it helped young women know and feel like they belonged to something important. Women’s rights really came aliv...

How to Celebrate Valentines Day as a Homeschool Family

How to Celebrate Valentines Day as a Homeschool Family For kids in a traditional school setting, Valentines Day may conjure up ideas of exchanging Valentines and feasting on cupcakes with classmates. How can you make Valentines Day special as a homeschooling family? Host a Valentine Party A child making the  transition from public school to homeschool  may be accustomed to a traditional classroom party. Consider hosting your own Valentines Day party for your family and friends or homeschool support group. One of the obstacles that you may experience with a homeschool Valentine party is getting a list of participants names. In a classroom setting, a list of names if usually sent home to make it easy for kids to address a Valentine card to each of their classmates. Also, unlike in a classroom, all the kids in a homeschool support group may not know one another. There are a couple of easy ways to overcome these obstacles. First, you may want to ask all the party-goers to bring blank Valentine cards to exchange. They can fill in the names as part of the activities after they arrived. For larger homeschool group parties, its helpful to ask the children to fill out their Valentines at home, writing â€Å"my friend† in the â€Å"to† field.   Ask each child to bring a shoebox or a paper sack to decorate. Choose one or the other so that all the kids have something similar in which to collect their Valentines. Provide markers; stamps and ink; crayons; and stickers for the kids to use in decorating their boxes.  After decorating their bags or boxes, have the children deliver their Valentines to one another. You will also want to provide snacks or ask each family to bring something to share. Group games are fun to plan, too, since those are difficult to play at home with siblings.   Have a Valentine-themed School Day Take a break from your regular schoolwork for the day.  Instead, complete Valentine’s Day printables,  writing prompts, and writing activities. Read Valentine’s Day or love-themed picture books. Learn how to dry flowers  or make Valentine’s Day crafts. Get hands-on with math and kitchen chemistry by baking cookies or cupcakes. If you have an older student, give him home ec credit for preparing a complete Valentine-themed meal. Serve Others A fantastic way to celebrate Valentine’s Day as a homeschool family is to spend time serving others. Look for opportunities to volunteer in your community or consider the following: Take Valentine  cards and treats to a nursing home,  police station, or fire departmentRake leaves for a neighborDeliver a homemade meal or Valentine treats to a neighborTake treats to the librarians who probably know your family by nameDo random acts of kindness, such as paying for the meal of the car behind you in the drive-through lineServe your own family by doing household chores that someone else usually does such as washing the dishes for Mom or taking out the trash for Dad Place Hearts on Each Other’s Bedroom  Doors Place a heart on each family member’s bedroom door listing a reason why you love them. You might mention attributes such as: You are kind.You have a beautiful smile.You’re great at drawing.You are a wonderful sister.I love your sense of humor.You give fantastic hugs. Do this every day for the month of February, the week of Valentine’s Day, or surprise your family with an explosion of hearts on their doors when they wake up on Valentine’s Day. Enjoy a Special Breakfast Like other families, it’s not uncommon for  homeschooling families  to find themselves going in different directions each day.  One or both parents may work outside the home, and the kids may have a homeschool co-op or outside classes to attend. Enjoy a special Valentine’s Day breakfast before everyone goes their separate ways. Make heart-shaped pancakes or have strawberries and chocolate crepes.   End the Day Together If you dont have time for breakfast, end the day with some special family time. Order pizza and snuggle up for a family movie night complete with popcorn and boxes of movie candy. Before the movie, encourage each family member to tell the others one thing they love about each of them.   Your homeschool familys Valentines day celebration doesnt have to be elaborate to be a meaningful, memory-making event.

Approaches to Teaching and Learning Essay Example | Topics and Well Written Essays - 500 words

Approaches to Teaching and Learning - Essay Example My approach would be to first form the theoretical foundation of every concept in the learners’ minds and then demonstrate practical work or supervise them as they engage in practical work in which they apply the theoretical concepts learned before. I shall use direct instruction, informal instruction, inquiry-based learning, and cooperative learning randomly while teaching different techniques and topics so that students are never bored of the same teaching strategy and have something new to find in every session they attend. Besides, different learners have different preferred ways of learning (peterhoney.com, n.d.), so this way everybody’s needs would be addressed. Occasionally, I shall also invite experienced health and beauty experts and professionals to share their experiences with the learners and provide them with an insight into the health and beauty treatments and techniques. The strategies I shall use to enhance the learning of my students will include group discussions, demonstrations through tutorials on Youtube, group assignments, question and answer sessions, and circulation of journals. I shall foster a range of learning styles to achieve best results that would primarily include visual, auditory, and kinaesthetic learning style during the sessions of the first week. I shall design my sessions on different days in a week with strategies fostering different learning styles to accommodate the needs of all learners. Use of all these strategies would help me develop a holistic understanding of the techniques in the learners. I shall use the VAK model to provide the learners with an opportunity to see which teaching strategy works best for them. The visual learning style involves the use of vision e.g. seeing and reading, auditory learning style involves the use of speaking and listening, while kinaesthetic learning style involves the use of touching and doing. â€Å"The VAK learning

What does Katznelson mean by white affirmative action How do U.S Essay - 1

What does Katznelson mean by white affirmative action How do U.S. government policies effect non-white Americans - Essay Example Katznelson points out that African Americans were legally excluded from government programs such as; unemployment insurance, social security, grants, assistance of elderly and poor. The blacks were segregated through; theological justification, harsh enforcement, economic compulsions, political institutions, social conventions, and racist ideas (Katznelson 5). The age of whiteness was marked by restricting Black Americans from crossing the set social boundaries, and this was implemented by the police state that had the authority. In addition, the author mentions that; although, Europeans and African Americas fought alongside each other at the Second World War, some eastern and southern Europeans, through the white affirmative action, got full rights at the expense of African Americans. This paper discusses the meaning of â€Å"white affirmative action† from Katznelson’s point of view, and address how U.S. government policies affect non-white Americans. When Katznelson talks of â€Å"white affirmative action†, he refers to the way in which various government programs, which were constituted in the 1930s and 1940s segregated the blacks. The authority of white affirmative action was prescribed in the constitution, society, and peoples’ minds. In his context, when the government programs segregated the blacks, they worked on the opposite direction and favored the whites. Therefore, the government programs became affirmative actions for the white race. White affirmative action was seen when the government used; the Fair Labor Standards Act (1938) and National Labor Relations Act (1935) to formulate worker reform, which would result in getting rid of domestic, as well as, agricultural labor (Katznelson 62). In this manner, Black Americans became segregated in that they could not find employment. The white affirmative action within the U.S. government was propelled by

The meaning of democratic, socialist, and secular in India Essay

The meaning of democratic, socialist, and secular in India - Essay Example This paper will delve into the different interpretations of democracy, socialism and secularism in light of each and every founding father of India in this particular context. The Indian society has been for a long time, traditionally plagued by the evil of creed based prejudices and the caste system. Stratification on the orientation of castes has hindered all the possible chances of Indian national unification from the early days. This situation was worsened by the presence of man varied religious groups within India, who were not willing to compromise on whatever grounds to reach a consensus of commonality. The tradition of self-styled and rhetoric religions fuelled divisions among the Indian people. It was a great pain for Mahatma Gandhi to see people stick to the age old tradition of religious intolerance, when it was needed most. It was disturbing for him because it was virtually impossible to organize any nationwide movement against the British oppressors (Collins, Larry, and Lapierre 64). Secularism for Gandhi was an unconditional necessity to bring any form of an all-encompassing political government and leadership. Gandhi personally preached his ideas of secularism and the religious forbearance across the breadth and length of India. However, preaching was not an easy job for him. Gandhi was up against the British, who has implemented the divide and rule policy in India, which saw the declaration of separate elections for different religions and communities in India. The declaration in the Government Act of India Act in 1935 hurt Gandhi so much, and he fought to his death for the uniting of the warring communal factions (Gudavarthy 88). Gandhi’s vision of a secular state is one where religious values are respected in all spheres of life, the public as well as private, but in which no solitary religion is permitted to dominate the

Model Driven Development Vs Test Driven Development Computer Science Essay

Model Driven Development Vs Test Driven Development Computer Science Essay Model driven development is a top-down, traditional approach that has been around for a long time. Test Driven Development (TDD) is a bottom-up, new approach in the sense that it has picked up its value in the recent years. The focus of MDD as the name implies is on the models rather than on code that guides the development of software whereas focus of TDD is on the tests. There have been several changes to MDD since the beginning to deal with the changing environment and complexities raised by projects. TDD started as a part of extreme programming (XP) methodology and has gained popularity among many developers as a separate practice itself. Traditional, hard cored MDD developers are accustomed to developing software that seems more natural to them considering it to be an Engineering approach. TDD developers approach the problem in a totally different perspective concentrating on customer views of the system. There are advantages and disadvantages to both approaches. For a high qual ity software product that meets the goals of the organization, it is important to understand and apply the most suitable methodology while making certain trade-offs if necessary. The best approach to follow depends on several factors including the type of organization, type of project, and experience the developers have. This paper is aimed at explaining Model driven and Test Driven development along with case study and observations. 1. Model Driven Development or MDD. Model can be precisely defined as â€Å"a description of a system from a particular perspective, omitting irrelevant detail so that the characteristics of interest are seen more clearly†. (Source: Patterns: Model-Driven Development Using IBM Rational Software Architect) Consider an example in which there is a pressing business need such as automation of certain processes and understanding the data collected in the business. In this situation a Business exists and there are people who are performing certain business activities in certain way. These are the people who are thinking of having a tool or a software product to help them increase their productivity and their functionality. These people who are called Domain Experts or Subject Matter experts or Business Experts know what they want. However, they currently do not have any software product that will help them to meet their needs. In this situation Domain Experts are the driving force. They do things in a certain way and expect the software product developed for them meet their needs should also do things in that manner. However, they do not know how a new software product will look like and how it will help them to meet their needs. People who develop this software product understand the needs , but they may miss the intricacies of the desired end product. Building a MODEL will help alleviate this situation. A MODEL can be a diagram, an animation or a presentation. If the Software that has to be developed is very small or involves 1 or 2 people, then the process need not be so much structured, even though it helps. However, while developing a large product which will involve tens or hundreds of people having different expertise, model will help them to accomplish this easily. A new product development building a Model is absolutely necessary. This is analogous to a civil Engineer creating a model of Building before it is actually built. Model Driven Development (MDD) is a methodology that focuses on designing models at an abstract level without considering the implementation details that guide the development process, focusing on one part of the system to manage complexity. Models help to analyze the problem and visualize the process. Most commonly used language for this purpose is Unified Modeling Language (UML). It establishes certain vocabulary and structure so as to understand and communicate between various developers. Artifacts are produced from the models, so the models are machine-readable, which is an important aspect of MDD. MDD is also called as â€Å"Model Driven Engineering†. An implementation of MDD is given by Object Management Group (OMG)s Model Driven Architecture (MDA). Focus of MDA is on forward engineering, i.e. creating code from modeling diagrams. Apart from MDA, there are also other views of MDD such as Domain Oriented Programming, Agile Model Driven Development, etc. MDA uses platform-independent model (PIM) to describe the system functionality as the first step. Platform Independent Model (PIM) is a generic way of representing the end view of the product without considering any technology or platforms going to be used. This model just transforms the Business requirements into a Model. This format does not contain any particular software code but shows the end state of the product in one of the Model development modes such as Diagrams, Flow Charts, and Animations etc. Based on the PIM and considering some economic conditions or availability, a proper platform is selected to develop the software. A model is then converted from PIM to platform specific model or PSM. . This contains software code at a higher level. Platform is a loose word in this context. This can be referred to type of hardware, software, operating system, programming language or combination of any of these put together. That is why choosing a platform is related to economic viability also. PSM can be thought of Developers model where as PIM can be thought of Domain Experts or End users model. UML representation using IBMs Rational Rose can be considered as PIM. Whereas, tools like IBM WebSphere Studio and Borland Together/J are used for developing PSM. In these, we have CODE VIEW and MODEL VIEW. These two views are synchronized together. When code is changed in Code View, it is reflected in the Model View and vice versa. The models may contain fixed and variable data, business requirements, presentation elements (forms, reports). If one of these elements changes, they can be incorporated into the model to see the changes that occur due to interdependencies. Based on the affects, all the other depending code can be changed accordingly to accommodate these changes. Models also describe what is called the Gap Analysis. Models are first built with an Ideal situation, but in reality the business processes and other aspects may be different. Therefore, the models will show the difference between the Real Life situation and the End State Ideal situations. This will help the Business units to define the changes in Business Practices or the Developers to meet the Business needs and bridge the gap. A well defined Structured System Analysis and Design (SSAD) is required to develop software based on Models. In this process, the design (Model) is taken as the basis to start with the development and as the development process is advanced, it is analyzed with the design and tested against the Model and re-visited to meet the requirements. Hence, software development using MDD approach requires Domain (Business) experts, software developers, Team leaders and Integration experts. Someone should also be able to play a Liaison role to understand both sides of the table Business side and Software side. This person will help each of the expert groups to understand the needs of other groups and will bridge the gap. Number of iterations in the project development process will be reduced drastically if this Liaison person has good knowledge and is an expert on both sides. MDD is used with many development processes such as waterfall model, iterative model, spiral model, etc. In MDD approach, a model plays an important role and forms the basis or driving mechanism to develop a software product. Test Driven Development: Test Driven Development (TDD) started its roots in Extreme Programming (XP) approach. Later on, it became a popular method by itself. TDD was originally called â€Å"Test First Programming†. TDD can best be described in three words as â€Å"Red-Green-Refactor† (source: Kent Beck). Simple essence of TDD is to write tests before the code is written. First, unit tests are written from the requirements. These tests will definitely fail because the code for it has not been written. In order to write the tests, it is necessary for the developer to understand the requirements well. Then, code that implements the test cases is written. The code that is written should be just enough so that the tests pass, no more, no less. This means that no prediction about the future story must be made. Test driven approach is â€Å"then there† approach. This means that code is written at that time from the user story requirements without making any assumptions or predictions about fu ture. After writing the code, the tests are run and seen if they succeed. If they do, then programmer can be assured that the requirements were met. After this, a process called refactoring is done. This refers to improving the quality of code and removing any duplication in the code. If the design is changed for the better, the developer can be sure he is not breaking any functionality by running the tests again. This process is repeated for the test cases that follow. This process is shown as a flowchart below: Source: http://en.wikipedia.org/wiki/Test-driven_development There are different issues to consider in this process. Test cases are written taking small steps at a time, such as implementation of one method. It is important to know the size of the test case and when the test case exceeds its limit of functionality to test. A test case contains the following: condition that specifies the systems state, an event that is to be tested, and finally systems state after the event has occurred. Almost every language has associated tools for writing these tests. In general, they are XUnit tests available for each language. For example, java has JUnit, C++ has cppUnit, .Net has NUnit, etc. The amount of designing that has to be done in TDD depends on developer. In Extreme Programming, no designing is done, directly jumping to test cases. However, some developers prefer to spend some time on design. Too much time should not be spent on the designs and deciding on that right amount of time to spend on it comes with experience. As suggested by Dave Chaplin, it takes almost a year for a good developer to learn most of the techniques in TDD. He divides the learning process in three stages. First stage would take three months to master writing the tests correctly. TDD is a totally different approach to take in developing software and most developers believe that hardest part about it is getting used to it and thinking in that direction. It takes another six months to learn about Mock objects. Last would be to be able to draw UML diagrams in a TDD perspective. This takes about three months. Those that become familiar with TDD find many advantages in it. These advantages are explained later in the paper. Pair programming is considered one of the best ways to develop a program using TDD. This is because another person can make sure you are going in right path. It is hard to make developers believe that this approach works. Also, management believes that it is a waste of money to make two people work on one feature while they can work on different features. Through test driven development, the focus is on customers requirements. TDD is now part of many other methodologies, such as Scrum, Agile Unified Process (AUP), and Rational Unified Process (AUP). TDD gives confidence to the developer and produces enthusiasm as they can see parts of the program coming together when they run the tests and see them pass. Case Study: Results of TDD and MDD are seen more effective by example. Therefore, I consider a case in which a Software Engineering class was given a choice of either doing MDD or TDD project. The projects were done for the same problem using different approaches. It was a calendar program that consisted of certain functionalities to fulfill. For TDD people, six user stories were given one after another without knowing what the next user story is. MDD people were given a problem definition and they were to submit GUI, design, code, tests at regular intervals. The functionalities that had to be implemented included finding the following: next date, previous date, zodiac sign, day of the week, next Friday the 13th, number of shopping days left until Christmas. These were each given as a user stories to TDD people. From the results of these, the following statistics were made: Model Driven Development approach results Criteria MDD User 1 User 2 User 3 User 4 User 5 User 6 Time To Code (hrs) 8 52 89 8.67 11 17 Time to Test (hrs) 2 15 13 3 3.3 2 NCSS (non comment source statements) 275 600 692 499 280 Number of Test Cases 109 142 51 Technology Used VBA Java Java (using Eclipse) C#.NET VS2008 C# VS Express C# Decision Complexity 79 59 Referential Complexity 26 52 Cyclomatic Complexity 105 111 83 GUI yes yes yes yes yes yes Test Driven Development approach results Criteria TDD User 7 User 8 User 9 User 10 User 11 User 12 User 13 User 14 User 15 User 16 User 17 User 18 Time to code 16.5 22 17 33 28 13.5 33 19.5 33 15 28 12.75 NCSS(non comment source Statements) 349 397 276 654 240 233 1095 279 196 298 328 277 Test cases 150 84 124 70 107 247 112 88 262 56 889 128 Technology C#.NET VS2008 Java Java Java VB.Net Express C VB .Net VBA Java Java VB.NET Java Decisional Complexity 106 66 76 76 97 115 62 57 77 145 81 Referential Complexity 12 43 40 24 24 34 19 102 9 160 29 Cyclomatic Complexity 118 109 117 100 65 121 149 81 159 86 115 110 GUI no no no no yes no no no no no No no Number of Times Refactored none 1 2 none 5 none 5 4 6 1 1 3 Observations: Even though there were almost twice as many people who did TDD as MDD, certain trends can be seen from the statistics. Since majority of the projects were developed using object oriented technology such as Java and C#, most of the observations are made based on these languages only. First and major difference that can be seen is creation of GUI. Only 1 out of 12 TDD people developed GUI while all of the six people who did through MDD developed it. One of the reasons for this is that in MDD, designing of GUI was first part of the task. In TDD, although there are tools that test a user interface, it is hard to obtain them and so user has to manually test them. Since it wasnt part of the requirement also, many had chosen to omit it. I noticed that neatest and well designed code came from most of MDD people. Even though there is refactoring in TDD, many had chosen not to do it. This can be seen by the statistics that 6 out of 12 people have either not done refactoring at all or did it only once. As research suggests, TDD is supposed to lead to high quality code. However, most of TDD projects code was of less quality. This comes to the point that in order to successfully carry out TDD, experience is needed. The lack of experience that most people had in doing a TDD might have been a factor for such quality. Many of TDD people had no experience in TDD methodology including me. As suggested by Dave Chaplin, in order to carry out TDD effectively, minimum one year of learning the techniques involved in the approach is needed for a good developer. Even though the quality and design is neater in MDD, number of lines of code was much less in TDD than MDD projects. In object oriented languages such as Java and C#, MDD projects had lines of code as 518 on an average while TDD projects had 350. This is partly due to refactoring eliminating unnecessary conditions and mostly due to the reason that since code was developed based on test cases, just about enough code that was necessary was written. Since the whole point of TDD is to start out with test cases, TDD projects have more test cases compared to MDD projects. For object oriented languages, TDD tests were 124 on average while MDD was 100. Although theory says that TDD results in highly cohesive and loosely coupled, but in practice, it is seldom like that. This point can be seen in this study. Most of the MDD projects were more cohesive and loosely coupled resulting in more reusable code compared to TDD. In TDD projects, it was seen that most of them had 2 or 3 classes at a maximum reducing cohesive nature and reusability. I observed that this is due to unpredictability of future user stories. MDD people can carefully plan the code such that it results in certain functions that can be used by other functions. In object oriented languages, correct amount of responsibilities and collaboration among objects in my opinion can be done more effectively if more designing is done. This is because it is much easier to see visually through the models. The reusability of the code in TDD also depends on the order of the user stories given. Most people reused day of the week code in shopping days till Christmas user story or Friday the 13th user story. Suppose that the user stories are given in a different order, then different approaches might be taken that might not result in the efficient piece of code. Refactoring tells you to remove duplications and keep the code clean, but the logic of the code will not change. In our case, if suppose number of shopping days left before Christmas was given before day of the week user story, then different approach might have been taken and the reusability of the day of the week code wouldnt have existed. It is easier to see collaborations and responsibilities of objects when the whole picture of the problem is present. Even the small amount of reusability that existed in TDD was due to the logical order in which the user stories were given. The time spent on the whole project for TDD is much less than MDD. Considering object oriented languages, TDD average time spent was 21 hours while MDD was 42 hours (almost double!!). TDD is proven to be faster and easier technique than MDD. In TDD, concentration is on current user story and it is faster to write test cases and code directly from user requirements. The time spent on test cases is paid off since no debugging has to be done at the end. Time and effort can be distributed and planned in advance in MDD. However, in TDD, since the amount of time and effort for the next user stories is hard to predict, it is difficult to plan. Some user stories take less amount of time while others consume lot of time. This can be seen in the case study. Most people said that finding zodiac sign took very less time and effort compared to finding the number of shopping days till Christmas . Pros and Cons of Using MDD approach From research and experience, these are some of the observations that were made on the MDD approach in general. A model in projects has following advantages It helps to break down the project into smaller code development pieces or modules which can be assigned to different teams. It helps each team to understand their role and how their part of the development is integrated into the whole product development The project managers and team leaders will understand on how to integrate all the modules and do testing. The end user will be able to visualize the integrated end product. If enough of time is spent in building a model properly, even though it takes time and effort, it will greatly reduce the time to build the product. A properly built model will also help in reducing the iterations of testing process, thus creating the integrations much quicker. There is also an economic advantage of building the models. A model will help to present a product to the investors easily and attract investments to fund the projects. Some disadvantages of using MDD approach The disadvantages of using MDD approach are not related to the approach itself, but rather it is related to the application of this approach. If MDD is not used properly, there will be extended delays in the product developments. Some of these possible setbacks are Building a Model will take lot of time and resources. MDD is not always â€Å"fit for all approach†. The project and product has to be analyzed before this approach is taken. Some people visualize a Model as an abstraction layer hiding all the complications of the product development process. Too much of abstraction may be good to certain audience in the project, but it over all defeats the purpose of building a model in the first place. So, care should be taken as not to ABSTRACT too much. If proper resources, such as, proper Domain experts are not involved while building a model, then the model as well as end product will be disastrous failure. MDD should not always be thought of the end point. Always underlying approach for each module should be associated with proper testing. Failure to consider the real life situations also causes the MDD unusable. The key to the whole process of Product development using MDD approach is having a proper liaison between Business group and IT group. Pros and Cons of Using TDD approach Some of the advantages of using TDD are: Since test cases are developed first, developer understands the requirements thoroughly in order to write them. The focus is on the functionality perspective of the client. TDD involves taking small steps at a time and focusing on one task at a time. Even though it consumes lot of time to write many unit test cases covering all possibilities, this makes it an advantage as it avoids debugging at later stages in the project. Finding bugs as early as possible is always beneficiary in terms of time and cost. Fixing bugs at a later stage is difficult because it is hard to determine what caused the bug. Since just enough code to pass the test is written, TDD will result in thorough testing covering all possible paths. If tests are written well, then it will produce stable code. Code is developed faster and there is working piece of code at every level, which inspires confidence and encourages the developer. Developer is aware of the progress made and can set goals to achieve a particular goal. TDD results in good design because of many factors. With experience, TDD can be a very effective method as it lets the developer think in small units of code leading to modularity and good design. This is also the result of looking at the problem from customers perspective to understand how it will be implemented. Refactoring also leads to producing good designs. Mocking and faking is beneficial in the sense that it will define the boundaries of the classes. This is because through mocking, you will find out what your classes should and should not know about the other class. This is the basic essence of encapsulation in any object oriented language. The test cases provide support for faster regression testing. On next iteration or anytime in future, when you add more tests, you can run all the tests to make sure that it works and if it doesnt, it is easy to see what part of the code broke. Some disadvantages with TDD approach are: TDD requires commitment and supporting management. Developers should be committed and write proper tests. If the tests are deleted or changed accidentally or purposefully, it will give false impression that the code is bugs-free. Support from management is important and they have to believe that this methodology works. If either of them does not exist, then TDD approach fails. Functional tests need to be done for programs that use a database or for creating user interfaces. For such things, using TDD approach is difficult. Tests and code are written by the same person most of the time and if the developer overlooks certain things, then it will affect the code as well and may not result in what is supposed to happen. If he interprets the requirements wrong, then the tests he writes and the code that implements them will turn out to be wrong and will lead to code that will not be as efficient as it should be. Another example would be if the developer doesnt check for certain specific inputs, then the code that needs to implement that will never be implemented. Having large number of working unit tests may build up over confidence that will lead to less concentrations on additional activities such as quality assurance evaluations. Unit tests only tell if the piece of code you wrote works. Other tests such as domain testing, integration testing, etc have to be done. Amount of coverage and details of testing that is done in TDD development cannot be reproduced at a later stage. So, these tests become an important aspect and it is necessary that they are well-written. There is no way to predict the type of user stories and it is not possible to gain a complete understanding of the system from the user stories. This leads to extensive code rewriting and refactoring. WHEN to use WHAT? This leads to the question of when is it appropriate to use TDD and when is it appropriate to use MDD. Software development is a process of developing a product to meet a certain business need. In a well defined environment and in large houses Software Development is done using the techniques described in Software Engineering and experience gained over the years. Many factors have to be taken into consideration when deciding on the methodology to use. These include things such as type of organization, management, type of project, experience of the developers, and availability of effective tools. Type of Project: Software development is done under two major circumstances 1. To develop altogether a new product a. A product that never existed before, but there is a need in the minds of people. A great example of this in recent years is ‘Youtube. There was no such product before, however, people had thought about having some kind of sharing videos. So, there is direc

Education :: essays research papers

From the ancient years many people tried to infect their knowledge to others. It was not difficult even for an inferior civilization to understand that the education was absolutely necessary, so the capitulary of education is ancient. Education is one of the most important tools that a society possesses. The right implementation of this tool is one of the greatest ways of assuring the quality of life within a society. The ability to better ourselves, is one of the strongest abilities of the human race. Without the consistent development of the human race, life would be nothing more than survival. At its most basic level of definition, education is nothing more than the teaching of ideas. The early stages of schooling instil more attitude and social skills than knowledge. The younger stages of a person's life are usually the most definable years of their lives. For this reason many rudimentary skills are taught. As the age and skill level of the student increases, more education is based upon the interest of the student. For society to progress and excel every generation must learn just a little more. Education has its downfalls. Students are only taught what society sees fit to teach them. If a society doesn't want students to learn about a certain period of history, then it is not taught. Education is a tool to succeed in life. The quality of education that a student receives depends upon many issues. One of the biggest differences in education is between public and private schools. In a society that values money, such as ours, the rich are given a better background in education than most people. For the general public, students are taught the same material, and excel at different rates than other students. The people that don't grasp the material usually fall behind and become the working class within our society. Those that excel become the backbone of our society, fuelling our economy and developing ideas within our world. The difference in education is not only is not only the skill that is provided, but also the attitude. Every person is different, and some people lack the ability to work in a technical field. Everyone has a place in society, and some people will work hard physically all of their lives.

Audience and Reception Essay

According to Communicating in the Workplace, by Thomas Cheesebro, Linda O’Connor, and Francisco Rios, no matter what type of informative speech or letter you have the opportunity to present, a key step in your preparation process is analyzing your audience. Consequently, you will need to spend some time finding out about your audience. To begin this process, you will want to determine the demographic composition of your listeners. Demographic characteristics are observable or measurable. They include factors such as age, race, ethnicity, gender, socioeconomic status, and so on. (Pearson Education, 2010) Assertiveness is the tone you should use when presenting a letter to management. â€Å"Assertiveness is stating what you think, feel, want, or need in a way that is direct, honest, and respectful of others. Specific purposes identify the desired audience response at the conclusion of your speech.†(Communication in the workplace, 2012) In other words, what do you want your listeners to know, think,or do after they have heard your presentation? Although you do not actually state the specific purpose in the context of your speech, you use this statement to give direction to the development and organization of your information. According to Communicating in the Workplace, by Thomas Cheesebro, Linda O’Connor, and Francisco Rios, to be effective, a specific purpose statement should meet the following guidelines: It should be a complete sentence, It should contain only one key idea. And It should be stated in measurable terms. â€Å"Think of the central idea as the core or foundation of your presentation. A central idea states, in a single sentence, the essence of the speech. It needs to be clear, concise, and focused for the audience. So important is this central idea that the effectiveness of the entire presentation is largely dependent upon it. It tells the audience what the speech is all about and prepares your listeners for the information that is to come.†(Pearson Education, 2010) In summary, â€Å"keep in mind that developing the skills are required to deliver effective presentations can increase your confidence and success both personally and professionally. The process of analyzing your audience, selecting a topic, determining your specific purpose, and formulating your central idea will enable you to achieve a truly memorable presentation.†(Communication in the workplace, 2012) Not doing so can really hurt your presentation, and your credibility.

Research Paper on English

As a consequence of the rapid globalization, the knowledge in communication is a need to survive in today’s life. We are required to have the skills in exchanging ideas with Different people, for we are now habituated to speaking to people from various places worldwide. English is the universal language, and the use of it enables us to communicate easily to other people. In school, there is an English subject in our curriculum. The idea of the need of learning this has been the factor that this research is made.Grammar is the foundation of all language. It is why our words produce ideas. And every word shall be properly organized to construct the intended thought. Through this study, the researcher will discuss the dynamics of the right grammar, the tenses to be used, and the subject-verb agreement strictly to be followed. This research will also facilitate future researchers on their further study about the same topic. Statement of the problem 1. What is English grammar? -The term â€Å"English grammar,† therefore, may have several meanings.It may refer to the whole of English grammar—that is, to the grammars of all the speakers of the language, which means including a great deal of variation. Alternatively, it may refer only to what is common to the grammars of all, or of the vast majority of, English speakers (such as subject-verb-object word order in simple declarative sentences). Or it may refer to the rules of a particular, relatively well defined variety of English (such as Standard English). â€Å"An English grammar† is a specific description, study or analysis of such rules.A reference book describing the grammar of a language is called a â€Å"reference grammar† or simply â€Å"a grammar†. A fully explicit grammar exhaustively describing the grammatical constructions of a language is called a descriptive grammar. Linguistic description contrasts with linguistic prescription, which tries to enforce rules of how a language is to be used. 2. What is tense? Tense is a grammatical category that locates a situation in time that indicates when the situation takes place.In languages which have tense, it is usually indicated by a verb or modal, often combined with categories such as aspect, mood, and voice. 3. Importance of the study This topic aims to develop the communicative competence of the students in English, so that they can use the language in day to day interaction and more opportunity in academic situation. Limitations of the study This study limits only to the English language and its common rules, Thus, this research will only provide rules, examples, and tips in our English grammar.Definition of terms Grammar- is the set of structural rules that govern the composition of sentences, phrases, and words in any given natural language. The term refers also to the study of such rules, and this field includes morphology, syntax, and phonology, often complemented by phonetics, semantics, an d pragmatics. Linguists do not normally use the term to refer to orthographical rules, although usage books and style guides that call themselves grammars may also refer to spelling and punctuation. Tense- is a grammatical category that locates a ituation in time that indicates when the situation takes place. In languages which have tense, it is usually indicated by a verb or modal, often combined with categories such as aspect, mood, and voice. Subject-Verb agreement- The basic grammar rule in English is, of course, the subject-verb agreement rule. It prescribes that the operative verb of a sentence should always agree with its subject in number. This means that a subject that’s singular in number should take a verb in the singular form, and that a subject that’s plural in number should take a verb in the plural form.