Long Term Effects of Exercise on the Body free essay sample

Chronic responses are very specific to the type of training performed. †¢ The frequency, duration and intensity of the training undertaken – the greater these things, the more pronounced the adaptations †¢ The individual’s capacities and hereditary factors (genetic make-up) Chronic Adaptations to Aerobic (endurance) Training: †¢ Minimum period is 6 weeks †¢ More evident over 12 weeks †¢ Adaptations occur at both tissue and system levels. Cardiorespiratory Adaptations to Aerobic (endurance) Training Chronic cardio-respiratory adaptations are primarily designed for more efficient delivery of larger quantities of oxygen to working muscles. †¢ They decrease cardiovascular disease (CVD)and other health-related illnesses. †¢ Cardio-respiratory adaptations are best developed through continuous, fartlek and longer interval type training. Cardiovascular Adaptations: Cardiac hypertrophy (increased ventricular volume): †¢ Enlargement of the heart muscle itself †¢ Increase in size and volume of the ventricular chambers, particularly the left ventricle occurs. Significantly increases stroke volume Increased capillarisation of the heart muscle: †¢ Increase in capillarisation of the heart muscle itself (Increase in capillary density and blood flow to the heart muscle) †¢ Increased supply of blood and oxygen allows the heart to beat more strongly and efficiently during rest and exercise †¢ Coronary protective benefit (therefore decreased risk of heart attack) Increased stroke volume of the heart: Heart ejects a greater volume of blood with each beat Stroke volume is greater at rest, during sub-max and max workloads for a trained athlete compared to an untrained person Eg. We will write a custom essay sample on Long Term Effects of Exercise on the Body or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Average stroke volume at rest: †¢ Untrained male 70-80millilitres/beat, †¢ Trained male endurance athlete 100millilitres/beat or more. During maximal exercise: †¢ Untrained person – 110 millilitres/beat †¢ Trained person – 130 millilitres/beat †¢ Elite endurance athletes – 190 millilitres/beat Trained and untrained females have lower stroke volumes than their male counterparts under all exercise conditions, mainly due to a smaller heart size Lower resting heart rate: The amount of oxygen required by an individual at rest does not alter as a result of their training status. At rest, it takes about 5 litres of blood per minute (cardiac output) to circulate around the body to supply the required amount of oxygen to the body cells Cardiac output (Q) is equal to stroke volume (SV) multiplied by heart rate (HR). Q = SV x HR However, if an individual has developed a greater stroke volume, the heart does not have to beat as frequently to supply the required blood flow Eg. Before training: Q = SV x HR 5L/min = 70 mL/beat x 71 beats/min After training: Q = SV x HR 5L/min = 100 mL/beat x 50 beats/min This is why resting heart rate is a useful indicator of aerobic fitness. Lower resting heart rate – greater level of aerobic fitness †¢ Elite – 35bpm (marathon runners, triathletes, distance swimmers) †¢ Average adult male – 70bpm Lower heart rate during sub-maximal workloads: Mainly a result of increased stroke volume. The heart works more efficiently (More blood is pumped with each beat, and therefore the heart doesn’t have to work as hard to supply the required blood flow and oxygen supply) Slower increase in heart rate during exercise and a lower and faster attainment of steady state during exercise Improved heart-rate recovery rates: Heart rate of a trained athlete will return to pre-exercise levels (resting rate) in a much shorter time than that of an untrained individual. Increased cardiac output at maximum workloads: Cardiac output – unchanged at rest and even during sub-maximal exercise regardless of training status. Does increase during maximal exercise. Maximal exercise – may increase to values of: †¢ 20-22 litres per minute for untrained male †¢ 15-16 litres per minute for untrained females †¢ 30 litres per minute or more – highly trained athletes Lower blood pressure: May lower blood pressure, especially among people who suffer from hypertension (high blood pressure) Systolic and diastolic pressure levels may decrease during both rest and exercise Helps to reduce resistance to blood flow and reduces strain on the heart, thereby decreasing the risk of heart attack and other cardiovascular conditions Increased arterio-venous oxygen difference (a-VO2 diff): Trained individuals are able to absorb more oxygen from their bloodstream into their muscles during exercise performance compared to untrained subjects. This is due to: †¢ Increased muscle myoglobin stores †¢ Increased number and size of mitochondria within their muscles As a result of this, the concentration of oxygen within the venous blood is lower Subsequently the arterio-venous oxygen difference is increased during both sub-max and maximal exercise Therefore, and increased arterio-venous oxygen difference (a-VO2 diff) indicates a greater uptake of oxygen by the muscles with trained individuals Increased blood volume and haemoglobin levels: Total blood volume may rise by up to 25% (from 5. 25L to 6. 6L) for an average adult male with regular and sustained aerobic training. Red blood cells may increase in number and the haemoglobin content and oxygen-carrying capacity of the blood may also rise. Increased capillarisation of skeletal muscle: The average number of capillaries supplying each muscle fibres is: †¢ 5. for trained athletes †¢ 4. 4 for untrained athletes Changes to blood cholesterol, triglycerides, low- and high-density lipoprotein levels: Results may include a decrease in blood cholesterol levels, triglycerides and low-density lipoprotein (LDL). These substances are associated with the development of coronary heart disease. Aerobic training increases the ratio of high-density lipo-protein (HDL) to low-density lipoprotein. High-density lipoprotein is thought to provide a coronary protective effect, lessening the risk of developing coronary heart disease. Respiratory Adaptations Increased lung ventilation: More efficient and improved lung ventilation At rest and during sub-maximal exercise, ventilation may be reduced due to improved oxygen extraction However, during maximal workloads, ventilation is increased because of increased tidal volume (amount of air breathed in and out in one breath) and respiratory frequency (the number of breaths taken per minute). Pulmonary diffusion (the ability of the blood to extract oxygen from the alveoli) is also enhanced. Increased maximum oxygen uptake (VO2 max) Increase in the maximum oxygen uptake (VO2 max) during maximal exercise Improvement can be between 5–30% following a regular and sustained training program This occurs because of adaptations such as: †¢ Increased cardiac output †¢ Increased red blood cell numbers †¢ Increased a-VO2 difference †¢ Increased muscle capillarisation †¢ Greater oxygen extraction by the muscles Increased anaerobic or lactate threshold As a result of the adaptations that improve oxygen delivery and utilisation in the muscles, a higher lactate threshold (the point at which oxygen supply cannot keep up with oxygen demand) is developed. Advantage: The anaerobic glycolysis (lactic acid) system is not utilised as much until higher exercise intensities are reached. Consequently, lactic acid and hydrogen ion accumulation will be delayed until these higher work-load intensities are attained The athlete can â€Å"work harder and for longer periods† Muscle Tissue Adaptations to A erobic (Endurance) Training: Chronic aerobic training adaptations within muscular tissue are best produced through continuous training or high-repetition resistance training The following tissue-level changes can be observed within skeletal muscles following extensive endurance training: Increased oxygen utilisation: Aerobic training enhances the body’s ability to attract oxygen into the muscle cells and then utilise it to produce adenosine triphosphate (ATP) for muscle contraction This process occurs in the following ways: †¢ Increased size and number of mitochondria – Mitochondria are the site of ATP synthesis and where glycogen and triglyceride stores are oxidised (Greater oxidisation of fuels to produce ATP) †¢ Increased myoglobin stores – Myoglobin is the substance in the muscle cell that attracts oxygen from the bloodstream into the muscle. (Increase ability to extract oxygen) Increased muscular fuel stores: Increase in the muscular storage of glycogen, free fatty acids and triglycerides, along with the oxidative enzymes required to metabolise these fuel stores and produce ATP. Increased oxidation of glucose and fats: The muscular adaptations result in an increase in the capacity of muscle fibres to oxidate both glucose and fats The capacity of the aerobic system to metabolise these fuels is increased Increased oxidation of fats as a fuel source; due to: †¢ Increased storage of triglycerides and free fatty acids †¢ Increased levels of enzymes associated with fat metabolism Means that: At any given exercise intensity, a trained individual has to rely less on glycogen, thereby â€Å"sparing† glycogen stores (Glycogen sparing) Therefore delaying the time to exhaustion due to glycogen depletion. Decreased utilisation of the anaerobic glycolysis (lactic acid) system: The enhanced capacity of the muscles to aerobically metabolise glucose and fats and other muscular level adaptations also means that there is less reliance upon the anaerobic glycolysis system to produce energy for ATP resynthesis until higher exercise intensities are reached. Allows athletes to work at higher intensities without exceeding lactate threshold. OR †¢ Aerobic training results in an increase in the lactate threshold Eg. An athlete must run at a faster pace in order to accumulate the same amount of blood lactic acid as before training Muscle-fibre type adaptation: Some research has shown evidence that skeletal muscle switches fibre types from fast twitch to slow twitch as a result of endurance training. Skeletal muscle fibres are classified into three types: Type 1 – Slow-twitch oxidative fibres: Contain large amounts of myoglobin, and large numbers of mitochondria and blood capillaries. †¢ Red †¢ Split ATP at a slow rate †¢ Slow contraction velocity †¢ Very resistant to fatigue †¢ High capacity to generate ATP by oxidative metabolic processes. Type 2A – Fast-twitch oxidative fibres: †¢ Contain an extremely large amount of myoglobin, and huge numbers of mitochondria and blood capillaries. †¢ Red †¢ Very high capacity for generating ATP by oxidative metabolic processes †¢ Split ATP at a very rapid rate †¢ Fast contraction velocity †¢ Resistant to fatigue Type 2B – Fast-twitch glycolytic fibres: †¢ Contain low myoglobin content, relatively few mitochondria and blood capillaries, and large amounts of glycogen †¢ White †¢ Geared to generate ATP by anaerobic metabolic processes †¢ Fatigue easily †¢ Split ATP at a fast rate †¢ Fast contraction velocity Individual muscles are a mixture of the three types of muscle fibres, but their proportions vary depending on the action of the muscle and the genetic make-up of the individual Summary of muscle tissue adaptations to aerobic (endurance) training: Before Training |After Training | |Mitochondria (size and number) |Increased | |Glycogen Stores |Increased | |Myoglobin |Increased | |Triglyceride Stores |Increased | |Oxidation (both glucose and fats) |Increased |Anaerobic Glycolysis (lactic acid system) |Decreased | |Muscle Type Adaptation (number and type) |Increased | | | | | |Some conversion of: | | |Type 2B fibres to | | |Type 2A fibres | Chronic Adaptatio ns to Anaerobic Training Anaerobic training effects are best developed through sprint training, shorter and faster interval training, plyometric training, circuit training, and resistance (strength and power) training. The greatest adaptations occur at the muscle-tissue level. They include: Muscle hypertrophy: Significant enlargement of muscle fibres (mainly Type 2B fast-twitch fibres) resulting in muscular hypertrophy (an increase in the cross-sectional size of the muscle) and subsequently, greater strength

Author Eric Barnes on Publishing and Post-Apocalyptic Fiction

Author Eric Barnes on Publishing and Post-Apocalyptic Fiction Youd think that ones post as the CEO of several major metropolitan newspapers throughout Tennessee, and author of multiple science fiction novels, would make the road to publishing an easy one. But Eric Barnes, host of Behind the Headlines on WKNO TV and author of four novels, including his most recently published post-Apocalyptic foray, Above the Ether, admits that its a little more complicated than that. Heres his advice for how writers can navigate the labyrinthine terrain of publishing without giving up, selling out, or letting rejection letters be the final word.Author Eric Barnes. Photo by Andrew BreigTonya: Our readers are a mix of indie authors and authors who have gone through more traditional publishing houses. What is your advice about the publishing process (either indie or traditional or both) from your experience?Eric: For the kind of novels I write, the publishing process is, to say the least, difficult. Its slow-moving and convoluted. Thats not a criticism of the publ ishers whove published my books. Its simply a comment on the reality of a very complicated business that has been in the midst of massive change for a few decades now.First there was the rise of big, corporate publisher, which bought up and combined many of the long-time independent publishing houses. Then there was the rise of massive chain bookstores like Borders and Barnes Noble. That was followed by the arrival of Amazon, a disruption that only continues as readers shift to e-readers even as independent bookstores increasingly find ways to thrive.In the midst of that, there are so many writers throwing so many manuscripts at a shrinking number of publishers who have a dramatically smaller universe of stores in which to sell those books.And meanwhile, the very process of assessing a manuscript is mind-blowingly slow. For fiction of some level of seriousness – I hate the term literary fiction but thats all there is – theres no way to fairly assess a manuscript with( out) spending quite a bit of time on it. Put another way, it takes hours (sometimes many, many hours) to read a book, no matter how quick a reader you are.Thats even before you get to the incredible cost involved in editing, designing, printing, distributing and selling a book.The process, in other words, is a labyrinth. Its slow, by necessity. And its all built on a business model that leaves little room for error.Tonya: Where did you get the idea for your newest book, Above the Ether, and how long did it take you to write it?Eric: The idea for Above the Ether came from my previous novel, The City Where We Once Lived, which is about a city thats been abandoned and the few thousand people who have chosen to live there. The city in that novel has been devastated not by a plague or some virus, but by bad decisions, inattention, abandonment. All animals have fled, all the plants and trees have died.The main character in City assumes that everyone, everywhere lives with this sort of dea th of plants and animals. But toward the end of the novel, a new person comes to the city. And, very offhandedly, he tells the main character why hes fled his home and come to this city.The animals that left this place, they didnt all just die. They went to other places. Like the city we are from. Huge packs of dogs. Feral cats. The failed efforts of the city to wipe them out with poison, so many dead animals that they had to leave carcasses in piles on corners and overflowing from dumpsters and still the animals roamed the street.The City Where We Once Lived by Eric BarnesAnd so I decided I wanted to write a book about that other city, and other cities and places like it, that were going through some kind of slow-motion disaster. Again, not plagues or runaway viruses or zombie apocalypses – just places dealing with the everyday decisions that we make or are made for us.Tonya: A lot of successful authors have a daily word count goal or specific method of getting a book writte n. Do you have either? What does a typical writing session look like for you?Eric: I need to write every day to be effective. I cant wait till I feel the inspiration. I have to schedule regular time, consistency, in order to be writing frequently enough that Im either at my desk when I feel inspired or the consistency itself generates more and more inspiration.Because of this, if I know I wont be able to write tomorrow, I will struggle to write today. Because if I cant write tomorrow, but todays writing goes badly, I will be incredibly frustrated.The reality, of course, is that I cant write every day. So I try to find stretches of time – 2 weeks or 4 weeks or sometimes as many as 6 weeks – where Ill be able to write for at least an hour most every day. That way I feel like Ill have some consistency, a routine, that I can rely on when writing goes badly. Which it does.I dont set a word count, just this goal of building a routine, but I do count words. I might write 100 words, I might write 1,500. But the goal is to write consistently.Also, I mostly write in the morning, usually from 5:30 to 7:30, then Ill read and edit what Ive written in the evening.Tonya: As CEO of several newspapers, you obviously have other obligations beyond writing novels. What is your advice for authors struggling to get a novel written when it isnt their primary occupation?Eric: It can be a nightmare. Writing is time-consuming and, at its worst, maddeningly frustrating. For me, I just have to be hyper-scheduled – down to the hour and minute of the day – as far as when I write, when I parent, when I see friends, and so on. Its hard on the people around you. You just have to accept that, as do they.The economic reality is that, for what I write (and, honestly, for what most fiction writers do), its exceedingly difficult to make a living off of novels. For many years, this meant I was personally at war with the two sides of my life – my writing life, and my day job. That wasnt healthy. Over time, I found a way devote enough time to both that they coexist much better.Tonya: What is it about the post-apoc/dystopian subgenre of Science Fiction that fascinates you most and do you have any favorite authors who write it?Eric: I grew up reading a lot – almost all – of Kurt Vonneguts novels and non-fiction. I loved how he could circle into and around science fiction, even as he was writing painful, funny, beautiful and deeply serious books. But I also read a lot of serious, entirely real fiction that I wanted to emulate, especially work by Raymond Carver, Richard Ford and others.But then there were three books I read over a number of years – For the Time Being by Annie Dillard, and Cormac McCarthys Blood Meridien and The Road – and I started wanting to write differently. Id always like complicated, multi-character narratives. My first two novels, Shimmer and, especially, Something Pretty, Something Beautiful, bot h had multiple narrators and a way that I could use the multiple narrators to shift time and place.Now I wanted to write with more unreal elements. More that was made up.With both The City Where We Once Lived and Above the Ether, though, what I did not want to do is write post-apocalyptic novels where thered been some sort of war or plague. Not that theres anything wrong with doing that, I just felt like, first, that had been done. And second, I wanted to shine more light and attention on decisions we make now and the outcomes of those decisions.Tonya: Do you have any specific advice for a writer interested in publishing in the post-apoc/dystopian subgenre? Is there any trope thats been overdone or any new slant publishers are looking for?Eric: I really dont know what advice Id give. For better and worse, Im not a writer who can write toward what publishers want or need. I have to write a story that interests me, which means taking a massive risk on whether that novel will also be o f interest to a publisher. Twice, Ive misfired and written novels that ultimately didnt get published. But I dont regret writing those manuscripts. Had I not written them, I wouldnt have written the ones that followed.

Nursing Implications for Creating and Maintaing a Restraint-Free Unit Research Paper

Nursing Implications for Creating and Maintaing a Restraint-Free Unit Uviversity of Central Florida - Research Paper Example Alternatives to physical and chemical restraints are explored in this research review, as well as the nursing implications for creating and maintaining a unit that is restraint-free. A restraint free environment in the ICU is a situation where there is nothing that restricts the movement of the patient in the ICU. In restraint ICU, the patient is not allowed to make any movements by either controlling them physically with physical devices that limit their movements. Most hospitals today work towards having restraint free environments that would not restrict the movement of patients. To achieve this, nurses have a very important role in the creation and maintenance of the restraint free environments. The philosophy of nurses suggests that nursing includes taking care of someone by showing them love and concern. â€Å"This love and concern must also include the use of professional care for the patient† (Benbenbishty, 2010). When taking care of someone, the nurse has to ensure th at both his and her emotional, physical, and spiritual needs are met. It is also important for a nurse to ensure that while taking care of the patient, they must treat them with respect and dignity and to ensure that their needs and wishes are met. Nurses also have to realize that everyone ages, that aging is a very natural process, and that the old are human beings. This means that every nurse has the responsibility of taking care of the old with respect and not as people who are undergoing both mental and physical deterioration. Nurses also have to ensure that while taking care of a patient, their ultimate aim should be to rehabilitate, and maintain every patient in such a way that they enjoy their daily living in relation to their level of quality of life. It is, therefore, the responsibility of the nurses to ensure that a restraint free environment is created in the ICU. This is because as one patient is restrained, any or all of the above aims may be violated, hence leading to the violation of the nurse’s act. Therefore, nurses have a major role to play in the creation and maintaining of a restraint free ICU. They have to do this so as to fulfill their professional requirements and at the same time to act like human beings and to treat other people not as animals but as fellow humans. Since restraint causes a lot of pain and restrictions to the patient, it should be the main aim of every nurse to do away with it. In the event that the nurses create an environment that is free of any reins taint, then a lot will be achieved. First, the nurses would have fulfilled their career objective of providing an environment that is comfortable and that the wish of the patient can be put into consideration. To achieve this, however, there has to be a lot of increased responsibility on the nurses’ side. First, they have to increase the amount of time that they have to use in taking care of the patient. This also means that since no restriction is availabl e, then nurses have to ensure that they are always there for their patients so that they do not get hurt, especially those who may have some mental problems. Nurses also have to ensure that they closely monitor every patient to know who needs more care. It is also very important that for a free restrain to be effective, nurses have to reduce their level of carelessness and to know the kind of materials that should be kept away from the patient. Even though there is

Common Theme Essay Example | Topics and Well Written Essays - 1250 words

Common Theme - Essay Example The socially relevant message that most of the works of Margaret Atwood contains is quite evident. An urge for change is always on demand in all her literary masterpieces. The poems she has written are no exception. In most of her poetic works a theme of ‘call for change’ is well reflected. This in broader terms is the message of ‘renovation’. Different socially relevant scenarios have been both directly and indirectly depicted in the works of Margaret Atwood. All of those works, towards their end has concluded with a call for change or even an indication towards the possibility of a positive situation. The objective of this essay is to critically analyze different poems of Margaret Atwood and to explain the ways in which they have dealt with the theme ‘renovation’. Three different poems were considered for the review. They included ‘The Sad Child’, ‘Bored’, and ‘More and More. The trial of the author to reflect a message on the need for renovation is being highlighted in the essay. It is quite evident that the role of the poet as a social activist has highly influenced the writing style and the plots of the poems. She being a feminist and her urge to see a social renovation has well been reflected as a gist of the poems which are being analyzed. Though the subjects of social interest have been wide and vivid, the common factor in all of them is the need for change. ‘The Sad Child’ has within it a solid message for the generations to come. It demands children to change and to be happy so that the world of tomorrow is happy along with them. In the initial lines of the poem, the poet has well created a background, explaining the sadness that the childhood bears. Interestingly, the context of sadness of children has been plotted by the author in such a way to be globally relevant. When someone from an underdeveloped nation reads this, he or she would relate this sadness to the one because of

MOVIE REVIEW Example | Topics and Well Written Essays - 750 words - 1

Movie Review Example Her head is shaved and her bangles broken. She is made to wear a piece of white unstitched fabric like the rest of the widows there. Chuiya gradually adapts to the lifestyle of Ashram and at the same time, she changes its dreary atmosphere with her innocence, energy and playfulness. Her bonding with two other widows, Shakuntala and Kalyani, is remarkable. Kalyani is the only widow who is allowed to keep her hair because she is forced to prostitute by Madhumati, the head of the ashram, to bring in money for the ashram. Chuiya’s accidental meeting with Narayan, a rich law student and follower of Gandhi gives a new turn to the plot of the movie. Narayan and Kalyani fall in love but their love affair is short-lived. When Madhumati learns about her love affair, she locks her up in the room. Shakuntala is represented as a positive force in this movie. The scene in which she unlocks Kalyani to meet Narayan is symbolic of freedom of the subjugated women in the name of religion. However, Kalyani refuses to meet Narayan’s parents because upon seeing his home, she realizes that his father was one her clients. From this point onwards, the tragedy in the movie deepens because she commits suicide after returning to the ashram and Chuiya is chosen to do her job. In the last scene of the movie, Shakuntala hands her over to Narayan, who is angered and disgusted by his father, is leaving with Gandhi on a train. The ending scene symbolizes hope and freedom at least for Chuiya, who evades her fate as a cursed widow. This film revolves around widows in India that are treated as outcasts by the mainstream Hindu society. Though this film is set in 1938, and a conversation between Shakuntala and a priest in one of the scenes inform the audience about the new law that allows widows to remarry; yet the sub titles at the end of the movie inform the audience that even at the turn of the 21st century, many women continue

Business Essays Sustainability Business Corporate

Business Essays Sustainability Business Corporate Sustainability Business Corporate Executive summary Nowadays, the idea of sustainability has gained wider recognition by most corporates. And business operations are conducted mostly under the guidance of it, that is, satisfying our own needs without diminishing the chances of future generations. There is no denying that the term sustainability poses new challenges for business activities. Actually, any corporate expecting for long-term benefits must be responsible for environment and ecosystems and function in a ethical way. In the new sustainable era, more and more corporates have realized the importance of environmental policies and practices towards sustainability, expecting to reduce their footprints on environment. In order to better understand corporates sustainable development, the report will choose Nestle and Coca-Cola as study objects, both of which are famous food and beverage enterprises in the same industry. Through appropriate analysis and comparation in terms of their environmental policies and non-financial practices, the report is intent to achieve some conclusions summarizing their overall differences in the way they approach sustainability issues and provide certain kind of recommodations to improve their future sustainability performance. Introduction Business sustainability is a pro-active approach to ensure business long-term viability and integrity by optimizing resources, reducing environmental impacts while not compromising product quality, competitiveness and profitability. With the rapid development of business economy, environmental concerns have become of paramount urgency for all corporates, who are responsible a great deal for environmental problems. Quite simply, there are still many business having not taken ethics and social responsibility into consideration, thus destroying environment and their long-term benefits. Therefore, one of the greatest challenges today is to advocate sustainable forms of business and encourage all business assume social responsibility consciously. (Barry, N. P. 2000) Fortunately, when environmental crisis begin to affect business activities, when unethical behavirors begin to bring about side effects to business development, more and more corporates have realized the necessity to perform in a sustainable and ethical way, not only for its stakeholders but also for whole society, as well as for a sound future development space. And a series of polices and practices have been applied by corporates to thoroughly commit to doing more for society. Even though, it is not uncommon to see some corporates sacrificing potential of future generations , only to meet their present needs. Exactly, beyond meeting needs of customers and shareholders, corporates should function according to requirements of societal responsibility. Besides, business should acknowledge its societal role and can lead sustainability for both itself and society. Firstly, the report will review Nestle and Coca-Colas distinct environmental and ethical policies. Secondly, the report will analyze and compare the two corporates different sustainability practices. Then select another topicwaste disposal issues to futher discuss their special attention on corporate social responsibility and sustainable development. In the discussion, academic concepts, frameworks, industry standards will be used to support the views. Lastly, the report will give some suggestions and recommendations to Nestle and Coca-colas next-step sustainable development. Discussion and Analysis (1) Environmental and ethical policies Generally speaking, corporate environmental policies arise from urgent need of environment protection and improvement in social responsibility sense. Recently, most corporates have come to realize the importance of environmental and ethical issues in sustainable development. (Donaldson, T, Werhane, P.H. and Cording, M, 2002) Nestle and Coca-cola are two worldwide famous beverage corporates in food and agriculture industry. Though both of them set sustainability as one of development goals, either of them has distinct environmental policies. As the worlds largest food and beverage manufacturer, Nestle published Nestle Policy on the Environment in 1991 to state its long-lasting commitment on environmental issues for sound business practices. In business activies, Nestle complies with environmental businesss and regulations, participates in legislative and regulatory discussions, and fosters rational environmental businesss. On the basis of applicable legislation, Nestles internal rules are applied for the purpose of reducing environmental footprints and costs, for example, reduced energy consumption, fewer greenhouse gas emission and less water usage. To sum it up, basic principles in Nestle are in favor of long-term development commitments over short-term profits; respecting of diverse cultures; management based on ethical values and information recognition of consumers brand preferences and products requirements. And strict auditing and assurance standards are available to ensure ethical policies smooth application, with Corporate Business Principles, certified standards of ISO 14001, OHSAS 18001 and ISO 22000. For competitive advantages, policy priorities have been given to environmental issues concerning natural resources preserve ,waste minimisation and recovery. In a word, Nestles sustainability policies designs are environmental and sustainable ,which are fit for all its business activities, ranging from research and development, supply chain, information, communication and training. Chart one: Nestles environmental performance indicators in Latin America As for Coca-cola enterprise(CCE), the worlds largest marketer, producer and distributor Coca-cola products, in 2007, CCE formally established CRS as a pillar of Global Operating Framework, intergrating it into everyday business operations. And this framework outlines srategic priorities to guide vision achievement. Besides, CCE also sticks to external standards, such as 10 priciples of the United Nations Global Compact, international management systems standards for quality (ISO 9001), environment (ISO 14001), and health and safety (OHSAS 18001). (Environmental Sustainabilty Index.2001) Its ultimate objective is to achieved full certiication of quality, environment, health, and safety by the end of 2010. Meanwhile, in July 2008, it published its third company-wide Corporate Responsibility and Sustainability (CRS) Report, announcing commitments in water stewardship, sustainable packaging/recycling, energy conservation, product portfolio/well-being, and diverse and inclusive culture. Water, solid waste and packaging, and energy are its environmental priorities. In order to better implement environmental policies, CCE also cooperates with suppliers, customers, consumers, community leaders and employees widely. And Environmental Management System (EMS) has been implemented and maintained to fulfill environmental commitment. Other than adhereing to applicable local environmental businesss and regulations, CCE environmental policies put emphasis on establishing objectives to measure environmental impacts, pollution prevention, and efficient use of resources. Furthermore, environmental projects and initiatives with local communities have been consolidated as one of the sustainable development policies. (2) Non-financial reporting practices Environmental protection is an integral part of business strategy. (Esty, Daniel C., Marc Levy, Tanja Srebotnjak, and Alexander de Sherbinin.2005)To fullfill its commitiments, Nestle firstly integrates environmental principles and policies across whole business. Then Nestle Environmental Management System has been applied for continuous improvement of environmental performance. Compared with ten years ago, in 2007, Nestle reduced direct greenhouse gas emissions by 16% and overall water withdrawal by 28% and invested about 100 million in environment-related industries and 170 million in new sustainable production facilities. Secondly, a great number of water conservation methods and water treatment plants have been implemented. And top priorities have been given to water consumption toreduce the amount of water used per kilo of food and beverage, because maintaining good water quality is vital to business interests. Thirdly, along its life cycle, Nestle aims to source sustainableraw materials, reduce energy consumption and minimise air emissions. Its sustainableproduct life cycleensures eco-efficiency, especially in by-products and waste management. For example, innovative packaging materials such as Plantic a biodegradable alternative to plastic , have been developed to reduce volum of packaging material used in bottled water. In additon, Nestle provides thousands of farmers with free technical assistance and infrastructure for greater yields of higher quality crops with fewer resources. About half of factories in rural third world have a profound impact on family income and life quality. Supply of safe raw materials and better end products is undoubtedly to gain consumers credit and preference. Brand value forms. Anyway, Nestle helps numbers of consumers for easy access to a safe, healthy and enjoyable diet through a sustainable way to eliminate dangerous trends and is committed to environmentally business practices. Sustainability is central to Nestle strategies and corporate social responsibility is reflected perfectly, added up with vested interests of shareholders. Nestles stainable environmental practices and shared values benefit not only its shareholders but also society. When it comes to non-financial practices in Coca-cola Enterprise(CCE), firstly, around CRS efforts, stakeholder engagement is strengthened to help ascertain key targets and chanllenges. It is stakeholders that urge us to pay special attention to sustainability issues. Customers expect CCE to manage social and environmental matters. Through collaborating with suppliers, CCE develops technology to reduce environmental impacts in supply chain, while at the same time persuades them to perform in responsible practices. Employees are educated for CRS goals. In addition, faculty,specialists and students in universities are involved to deepen sustainability considerations in theory. Secondly, good governance is fundenmental to make sustainable development come true. Corporate responsibility and sustainability committee is an organization responsible for significant social, ethical, and environmental concerns. Confronted with sustainability chanllenges, policymakers are sensitive to changes and new development area. For example, durning 2007,CCE chaired British Food Industry Sustainability Strategy Champions Groups on Water, which gave suggestions for Sustainable Food and Farming strategies. And Social, ethical, and environmental risks can be managed and evaluated in time. Thirdly, in the fields where business has greatest impacts, to minimize environmental footprint is stressed. In view of finite water resource, it is necessary to protect water source, watersheds and to improve water efficiency. By 2001,CCE will reduce plant water usage ratio by 10%. Beverage packaging consisted of alunimum, glass and PET is reduced and recycled to realize sustainability. In munufacturing, fleet, sales, marketing facilities, CCE makes endeavors to reduce carbon emmisions, improve energy efficiency and explore renewable energy , such as electricity and natural gas. Last but not least, a highly talented and diverse workforce is essential to sustainable development. A variety of training and earning opportunities and programs are provided to develop employees sustainable performance skills. Besides, healthy lifestyles, fair workplace, and appropriate rewarding are available here. (3)Waste issues For a long time, Nestle has worked with FareShare community food network and Ron Hulla waste managementcompany and FareShare1st has been created to dispose of surplus foodin a environmentally friendly way, through which remaining waste is reused or recycled for good quality food redistribution. As for CCEs wastewater , disposal process is operating according to applicable businesss and regulations. In 2007,CCE discharged 20 gigaliters of wastewater into municipal treatment plant. When municipal treatment facilities are not available, internal on-site treatment systems function under guidance of stringent wastewater standards. Just as Cola describes, 98% of solid wastes source from bottling process. Production waste includes empty ingredient containers, secondary packaging, film, glass, plastic, etc. Statistics show that in 2004, 76% of solid waste were recycled and reused, compared with 74% in 2003. Improved solid waste ratio and improved recycling ability suggest that various recycling programs have been applied to reduce waste. For example, Latin A mercians first PET recycling plant operated in 2005, with 25000 tons of PET recycling ability. In all, apart from economic profits, both of them work to conserve natural resources and protect environment through appropriate strategies concerning waste issues. As for manufacturing waste in bottling plants, raw materials reduction, solid waste minimization, and recycling increasement are best chioces. As for packaging waste in the marketplace, waste collection, recycling and recovery mechanism has been established to deal with them generated in production. Conclusion In conclusion, Nestle and Coca-cola are in the same food and beverage manufacture industry, although both of them begin to put sustainability development on the agenda, and plan to reduce production impacts on environment, their attitudes towards dealing with sustainability issues are different from each other. On a large scale, the reasons why differences appear lie in their distinguished customers and target groups. When Nestle coffee aims to create a kind of comfortable mood for those who want to taste, Coca-cola plans to satisfy almost all peoples basic needs for Coca. After all, as a f oreign beverage, coffee is not likely to adapt to domestic tastes. In this sense, different consumer groups determine different business policies, including choices in environmental policies. In the vision of sustainable development, Nestle sees it a comprenhensive concept, and defines it as the process of increasing access to higher quality products, while contributing to long-term economic and social development for not only recent generation but also future generations. A healthy profit is no longer at the expense of long-term business development. In Coca-cola, on the other hand, commitment to good citizenship is part of its business practices. And sustainable growth depends on the success in areas of profit, planet, people, partners and protfolio, of which being a responsible citizen makes a difference. In the way how to perform sustainable practices and business strategies, there is a framework for Creating Shared Value in Nestle , which embraces societal value and Nestls shareholder value. While Coca-cola provides a citizenship framework to guide its business in areas of marketplace, workplace, environment and community.( Whetten et al. 2002) In focus of sustainability chanllenges, water, health and wellness, and HIV/AIDS in Africa demand Coca-cola heightest attention. While Nestle believes nutrition, health and wellness as key issues, added up with human rights,sustainable production and community support. (Friedman M. 1970) Certainly, both of them give special attention to water usage. In the field of environmental management, in 1996 Nestle Environmental Management Syste (NEMS) was created and implemented throughout whole company to manage all environmental activities with good results. And Coca-cola follows The Coca-Cola Management System (TCCMS) externally benchmarked against ISO 14001, whose environment portion is called eKOsystem. The function of this system ensures environmental concerns are incorporated into everyday performances for efficiency improvement and costs reduction. Hence, Nestle and Coca-colas successful business tells the inspiring experience of their efforts towards limited growth, reduced environmental impacts and support of social and ecological goals positively. As a result of different brands and products, there indeed exists a great many differences between Nestle and Coca-cola in concrete environmental practices. As long as they are fit for their sustainable policies and business strategies, it is no necessity to assess wether their practices are good or not. Recommendations However, in some developing countries, Nestles business practices have been controversial and thought as unethical, in particular baby formula marketing, which led to widespread boycott since the 1970s. The boycott could be attributed to 1.5 million babies death each year on account of contaminated water mixed with milk. And the same thing is not uncommon in Coca-cola. In 2003, its soft drink was found by Centre for Science and Environment to have 30 times the permitted amount of pesticide residues. In India, Coca-Cola has also been accused of excessive water usage. Nutritionists even argue excessive consumption of soft drinks is harmful to young children because they have a lower intake of calcium, magnesium, ascorbic acid, and vitamin. Although Coca-cola has responded that its products meet minimum health standards and are strictly tested to remove potential contaminants before distribution, criticism or controversy ultimately result to sales decline to some extent. The year 2003 witnessed Nestles transgenic storm, which explained its indifference of public health safety and lack of basic social responsibility. In 2005, Nestles excessive-iodine incident marked its failure in public relations crisis, because the case took place after colloboration with Coca-cola, it would reduce confidence of dealers and consumers towards their co-production of liquid coffee. It is obvious that both Nestle and Coca-cola has not fully perform in accordance with sustainable principles. As for corporates in pursuit of profits, accecptance of environmental protection sense and sustainability idea is no easy task. (Werhane, P. H. and Freeman, R. E. 1999) Above all, in future development process, for sustained competitive advantages, their attentions should also be addressed on sustainability performance improvement. It is of great necessity for both corporates to make efforts to improve environmental performance facing up with emerging environmental challenges. The followings are recommodations for both corporates concerning future sustainability development. For one thing, needless to say, sustainability is still a basic principle, in other words, all business activities should aim to minimise negative effects on environment and keep a balance between economic interests and social and environmental concerns. For another, along supply chain of raw materials sourcing, manufacturing , packaging, distribution, marketing , to meet environmental commitment should always be kept in mind. For example, they should encourages suppliers to adopt most efficient and appropriate packaging materials to satisfy consumer requirements without jeopardising products quality. Whats more, sustainability and environmental management system (EMS) must be implemented and strengthened throughout entire business operation to ensure effectiveness of environmental policies and programmes, and to achieve compatibility with international environmental management standards, such as ISO 14001, the European Union Eco-Management and Audit,etc. In the future, their attention should be paid on environmental management structure enhancement, key sustainability activities measurement, ongoing performance reports, manage and forecast, and reliable environmental information communication. Besides, practical, aspirational environmental goals must be established annually. In addition, responsible leadership is inevitable to coordinate economic, social, and environmental goals,which means integrating ethical considerations into decision-making process . From the perspective of good governance , enterprise risk management (ERM) approach should be intergrated for a scientific sustainability-oriented decision-making process. Then, a skilled and responsible workforce is vital to realize sustainable objectives. Only if employees perform to their full potential, it is possible to attain superior development and future sustainable growth. Training and education should be provided for them to adjust to new sustainable expectations. And a safe fair workplace where they are respected and valued is another way for a empowered, well-trained and professionally team. Besides, in brands collaboration, in order to avoid similar incidents(Nestles unethical behviors bring disaster to Cola) , brand values and performance research before cooperation is i ndispensable. Finally, to be successful, both Nestle and Coca-cola must understand clearly stakeholders concerns. In CSR efforts, stakeholder engagement and coorporation mechanism should be strengthened, including suppliers, employees, NGOs, consumers, customers, investers, governments and local communities. Through engagement , valuable feedback can be received to help us better understand their requirements and how we can perform. For example, most consumers prefer to environmental healthy products. And through collaboration with suppliers, corporations can ensure them understand sustainable development expectations and engage them into environmental performances in supply chain.

Hamlet :: essays research papers

There are many interpretations to why Hamlet was hesitant in fulfilling his duty to avenge his father’s death. “We find it hard, with Shakespeare’s help, to understand Hamlet: even Shakespeare, perhaps, found it hard to understand him: Hamlet himself finds it impossible to understand himself. Better able than other men to read the hearts and motives of others, he is yet quite unable to read his own.';1 “What hinders Hamlet in his revenge is for him himself a problem and therefore it must remain a problem for us all.';2 Each observer of Hamlet forms their own opinions as what was they believe to be the Hamlet problem. The theory containing the most supportive facts leads to Hamlet being a procrastinator.   Ã‚  Ã‚  Ã‚  Ã‚  William Shakespeare’s play, Hamlet, is a tragedy. A tragedy is a drama characterized by the downfall of the main character, usually a noble person, due to a fatal personality flaw. In Hamlet, Young Prince Hamlet is this such noble man, his fatal flaw being procrastination.   Ã‚  Ã‚  Ã‚  Ã‚  One may ask why did it take Hamlet so long to kill his incestuous uncle, whom he regarded with the utmost repugnance. This has become a very controversial issue. Many critics and readers have different opinions as to why they believe Hamlet delayed the slaying of Claudius. Some believe it is due to Hamlet’s insanity. Others say he was in love with his mother, or that he secretly had sensual 2 feelings toward his uncle. Some think Hamlet was just simply a coward, and the list goes on. But the most probable reason for Hamlet’s hesitancy is that he was merely a procrastinator. There are many supportive facts to prove this point throughout the play.   Ã‚  Ã‚  Ã‚  Ã‚  A perfect example of procrastination is when one has a job to do which this person despises. For example, cleaning a filthy room. In this case, a procrastinator will find any possible excuse to get out of doing his/her task. Such as: calling an old friend who one may have lost touch with, grabbing a quick bite to eat and somehow it turns into a three hour ordeal, taking one last flip through the channels and it just so happens that one finds his/her favorite movie just started, and so on. So of course these five, maybe ten minute minor setbacks turn into hours. These long delays enable one to even forget the task at hand. And the next thing that winds up happening is this person will put the room off for another day or two. Hamlet :: essays research papers There are many interpretations to why Hamlet was hesitant in fulfilling his duty to avenge his father’s death. “We find it hard, with Shakespeare’s help, to understand Hamlet: even Shakespeare, perhaps, found it hard to understand him: Hamlet himself finds it impossible to understand himself. Better able than other men to read the hearts and motives of others, he is yet quite unable to read his own.';1 “What hinders Hamlet in his revenge is for him himself a problem and therefore it must remain a problem for us all.';2 Each observer of Hamlet forms their own opinions as what was they believe to be the Hamlet problem. The theory containing the most supportive facts leads to Hamlet being a procrastinator.   Ã‚  Ã‚  Ã‚  Ã‚  William Shakespeare’s play, Hamlet, is a tragedy. A tragedy is a drama characterized by the downfall of the main character, usually a noble person, due to a fatal personality flaw. In Hamlet, Young Prince Hamlet is this such noble man, his fatal flaw being procrastination.   Ã‚  Ã‚  Ã‚  Ã‚  One may ask why did it take Hamlet so long to kill his incestuous uncle, whom he regarded with the utmost repugnance. This has become a very controversial issue. Many critics and readers have different opinions as to why they believe Hamlet delayed the slaying of Claudius. Some believe it is due to Hamlet’s insanity. Others say he was in love with his mother, or that he secretly had sensual 2 feelings toward his uncle. Some think Hamlet was just simply a coward, and the list goes on. But the most probable reason for Hamlet’s hesitancy is that he was merely a procrastinator. There are many supportive facts to prove this point throughout the play.   Ã‚  Ã‚  Ã‚  Ã‚  A perfect example of procrastination is when one has a job to do which this person despises. For example, cleaning a filthy room. In this case, a procrastinator will find any possible excuse to get out of doing his/her task. Such as: calling an old friend who one may have lost touch with, grabbing a quick bite to eat and somehow it turns into a three hour ordeal, taking one last flip through the channels and it just so happens that one finds his/her favorite movie just started, and so on. So of course these five, maybe ten minute minor setbacks turn into hours. These long delays enable one to even forget the task at hand. And the next thing that winds up happening is this person will put the room off for another day or two.

Network Key Terms Essay

The Internet- The global network formed by interconnecting most of the networks on the planet, with each home and company network connecting to an Internet service provider (ISP), which in turn connects to other ISPs. Internet edge- The part of the Internet between an ISP and the ISP customer, whether the customer is a company or organization with a large private TCP/IP network, or whether the customer is a single individual. point of presence- A term used by service providers, particularly for WAN or Internet service providers instead of traditional telcos, that refers to the building where the provider keeps its equipment. Access links that connect the customer device to the WAN service physically connect into the POP. Internet core- The part of the Internet created through network links between ISPs that creates the ability of the ISPs to send IP packets to the customers of the ISPs that connect to the core. Internet access- A broad term for the many technologies that can be used to connect to an ISP so that the device or network can send packets between itself and the ISP. analog modem- A device at the customer and ISP end of an analog circuit, created when one modem calls the phone number of the other modem, with the two modems sending data using the analog circuit. DSL- Digital subscriber line. A type of Internet access service in which the data flows over the local loop cable from the home to the telco central office, where a DSLAM uses FDM technology to split out the data and send it to a router, and split out the voice frequencies and send them to a traditional voice switch. cable Internet- A term referring to Internet access services provided by a cable company, using many components, including a cable modem, coaxial cable, and a CMTS at the cable company head end. default route- In a router, a concept in which the router has a special route, the default route, so that when a rout er tries to route a packet, but the packet’s destination does not match any other route, the router routes the packet based on the default route. host name- A name made up of alphabetic, numeric, and some special characters, used to identify a specific IP host. Host names that follow the convention for domain names in the DNS system use a hierarchical design, with periods  separating parts of the name. Domain Name System- The name of both a protocol and the system of actual DNS servers that exist in the world. In practice, DNS provides a way for the world to distribute the list of matching host name/IP address pair information, letting each company maintain its own naming information, but allowing the entire world to discover the IP address used by a particular host name, dynamically, using DNS protocols, so that any client can refer to a destination by name and send IP packets to that host. Subdomain- With DNS naming terminology, this term refers to a part of a host name (or domain name).That smaller part can be the part that a company registers through IANA or some authorized agency to identify all hosts inside that company. IPv4 address exhaustion- A term referring to the very real problem in the worldwide Internet, which first presented itself in the late 1980s, in which the world appeared to be running out of the available IPv4 address space. classless interdomain routing (CIDR)- One of the short-term solutions to the IPv4 address exhaustion problem that actually helped solve the problem for a much longer time frame.CIDR allows more flexibility in how many addresses IANA assigns to a company, and it helps reduce Internet routing table sizes through route aggregation. Network Address Translation (NAT)- One of the short-term solutions to the IPv4 address exhaustion problem that actually helped solve the problem for a much longer time frame. NAT reduces the number of public IP addresses needed by one ISP customer by using one public IP address for the traffic from many real client hosts. Acronyms: BGP- Border Gateway Protocol CATV- Cable TV CIDR- Classes Interdomain Routing CMTS- Cable Modem Terminating System DSL- Digital Subscriber Line DSLAM- DSL Access Multiplexer FTTC- Fiber to the Curb HFC- Hybrid Fiber Coaxial IANA- Internet Assigned Numbers Authority IPS- Intrusion Prevention Systems ISP- Internet Service Provider NAT- Network Address Translation POP- Point of Presence RIR- Regional Internet Registries RJ-11- Registered Jack 11 SOHO- Small Office/Home Office

Enzyme Experiment with Temperature Essay Example

Enzyme Experiment with Temperature Essay Example Enzyme Experiment with Temperature Paper Enzyme Experiment with Temperature Paper Enzymes are catalysts in the body that speed up the breakdown of food, and are essential in the digestive system. Although food can be broken down by molecules colliding with it, the process is speeded up greatly by enzymes, a type of catalyst. We know from previous knowledge that enzymes are proteins, and they require the presence of other compounds, or co factors, before their catalytic ability can be exerted. Enzymes can be used more that once and are replaced only after a period of time when they are denatured. They are all specific to certain foods, but some are more specific than others. The lock and key theory of enzymes is that each enzyme has a specific key shape, which will only fit into one sort of lock, or substrate. This is illustrated in the below diagram. We also know they are denatured by high temperatures, certain salts, solvents and other reagents, where they lose their lock and key shape, making them useless. Enzymes work by attaching themselves to a bond in the substance and breaking the bond between them. It is because of these reasons we chose to examine enzymes in this experiment. The enzyme we are using is trypsin, which breaks down amino acids in the body. Hypothesis I hypothesise that as the temperature is increased, the rate of reaction will increase. However, when higher temperatures are reached, enzyme reaction rate will drop rapidly as the enzymes are denatured. I have drawn out a hypothesis graph, which I believe will be what the final graph will look like approximately. I have also labelled a number of stages, and explained what will happen to them, as known from past experience and research. We know that even without enzymes in the solution, the rate of reaction would still increase, due to the kinetic theory. The higher the temperature, the more heat energy. Heat energy is converted into kinetic energy, making the water molecules move around more quickly, hence colliding more often with the substrate, helping break it down. We also know that if enzymes are present, when the temperature is higher, the substrate will move more quickly into the active site. At stage 1 on the graph, the rate of reaction increases at a similar rate to the temperature, that is, the increase is roughly proportional. At stage 2, the enzyme activity is at its peak, I believe around 40 degrees. At stage 3, the enzyme is becoming denatured from the high temperatures, and is losing its unique shape, which allows it to catalyse substances. At stage 4, the high temperatures have completely denatured the enzyme, making it ineffective as a catalyst. 20o Variables There are a number of different types of variable in this experiment. The independent variable in this test is the temperature. We ensured that this stayed exactly as we wanted it by checking the temperature before inserting the photographic film. This is the only variable we should be changing and have direct control of. The dependant variable is the result we want, that is, the rate of reaction. If we perform the experiment correctly, the only thing that should be affecting the dependant variable is the independent variable, the temperature. All other variables, such as pH and the size of the photographic film, should be kept constant to ensure a fair test. If we change the pH, the enzymes bonding will change and cause it to lose its active site. This would make the test unfair, so we added buffer to the solution to keep the pH constant. If the photographic film size was not constant, it would take longer for the enzymes to break down the gelatine on some of the film, while the experiments with smaller pieces of photographic film would be broken down faster. To ensure all conditions are identical apart from temperature in each test, we kept the size of the photographic film to exactly 4mm squared. We also ensured that all tubes were given 10 minutes to acclimatise to the appropriate temperature. This is discussed later in detail. The temperature, the main variable we will be controlling, we have decided to test the trypsin at 0 degrees, 20 degrees, 40 degrees, 60 degrees and 80 degrees. We decided to choose this range, as it should provide a large spectrum of results, and are at the same time not too far apart in temperature, so we can hypothesise what results between them will be once we have our set of results. We made the temperatures precise by using water baths set to exactly the correct temperature, or an icebox at exactly 0 degrees. We also used a thermometer to ensure the temperatures were correct just before starting the experiment. Before beginning, we ensured the area was safe by wearing safety goggles and clearing the nearby area of books or obstacles. We placed 10 test tubes in the test tube rack. 5 were control tubes, so we added exactly 3ml of water to each of the 5. We then added 3ml of trypsin solution to the other 5. We inserted the photographic film squares, of 2mm squared in size, into each of the 10 splints. There were two tubes, one control and one test, at each temperature. We placed two test tubes, one filled with water, the other filled with trypsin, in the icebox. We placed two in a rack to stay at room temperature. Two were placed in the 40-degree water bath, two in 60 degree water bath, and two in the 80-degree water bath. Each one was allowed to acclimatise to the appropriate temperature in its water bath/environment for 10 minutes. This also ensured that the trypsin would denature if it were at too high a temperature, discussed in detail later. Stopwatches were started at the point when the splints were placed into the tube. Every 10 seconds the film would be examined. The timer was stopped only when the film was clear, so that all the film had to reach the same stage (eliminating the possibility of human error as to judging when the enzyme has completed its job). We then recorded all our results in a table, as shown below the Fair Test Section. Finally, we all washed our hands to ensure any trypsin on them was washed off. Fair Test Ensuring that the experiment was a fair test was one of the most important parts of the experiment; if each test were not fair, then the results would be incorrect. The first thing we had to be sure of was that we did not contaminate the trypsin with dirt or bacteria that may have been on our fingers, as this may have affected the rate at which the enzyme works. We also made sure that all the test tubes reached their correct temperature and were allowed to acclimatise for 10 minutes. This is important for two reasons, the first being that if we did not ensure the test tube was at the correct temperature, then the results would not be a correct reflection of what we had hoped to achieve. Also, it is important to remember that at high temperatures, enzymes work at accelerated speeds for short periods of time before denaturing (when the enzymes lose their key shape so they cannot fit in the lock of the substrate), whereby they are useless. We can see this in commercial industry, where enzymes are used at extremely high temperatures when they work very quickly, and then denature and are removed for another batch of enzymes to work. It is also important we keep pH constant, as if the pH changes, the bonding of the enzyme would change, causing it to lose its active site. This could affect the results and therefore our final conclusion, so we used buffer to regulate the pH. We also decided to keep the photographic film size at exactly 2mm squared. If photographic film were at different sizes, then in some test tubes the trypsin would have to work for longer to break down the larger piece of photographic film, hence increasing the result time and making the test unfair. To ensure complete accuracy, we checked our stopwatch every ten seconds instead of twenty or longer, so that we could pinpoint exactly when the photographic film had become transparent.

Christianity Marks Departure essays

Christianity Marks Departure essays It can be maintained that Christianity marked a departure from the values and belief structures of the Greco-Roman cultures to the extent that the first tended to emphasize the importance of expansive teaching and conversion of followers, monotheism and a separation of church and state, while the later championed the importance of mystic secrecy, a variety of patron gods or civic gods, and the importance of rulers as gods. The Greco-Romans fell into a variety of cult organizations that emphasized the importance of keeping secret the doctrines and rites that could redeem their followers, according to Professor Weber. By contrast, the early Christians felt the road to their salvation lay in the salvation of followers, via their education and inclusion in the process of educating others. In addition, according to Professor Weber, Judaism... Strengthened itself as a distinct, self-conscious belief by giving followers courage in times of persecution and making them fearful of offending Jehovah.... Early Christians supported the notion of a single, all-powerful god. These early Christians, who still described themselves as Jews, worshipped the god Jehovah, and saw him as the sole recipient of their allegiance. Greek political organizations, by contrast, emphasized the importance of a variety of gods supervising various city-states, while religion was seen as a necessity for the well-being of the state, as supported by Spielvogal, Western Civilization, A Brief History. Religious festivals were an important part of Roman religious practice. There were two kinds: public festivals ordained and paid for by the state and private festivals celebrated by individuals and families. (Spielvogal, 1999, p95) Since Christians did not recognize the Roman gods they refused to participate in the festivals and were starting to be considered by the Romans as harmful to the community. According to Professor Weber the ea...

Financial Reporting Essay Example | Topics and Well Written Essays - 750 words

Financial Reporting - Essay Example Also, there is the problem that no one individual or corporation has full ownership of the earth, so it would be very difficult to account for. Even if some accountants did factor use of the earth into the accounts, there would likely be many more that would not do this. Accountants do have the expertise required because they understand how assets depreciate and also how to balance the economic equation of assets equals liabilities plus equity. If such a system was put in place to allow accountants to value the earth, then it may be possible to do. The major problem is trying to get everyone to agree on what should be accounted for. The accounting profession is suited perfectly to control such measurement functions but the problem is deciding on what those functions are. Because they are many things that cannot be measured, it is very difficult for accountants to include such functions on the balance sheet. The difference between accounting for financial and physical objects is that one type can be measured on a scale while the other is more ambiguous. Financial objects have value because we give values that can be assigned to specific objects. For example, for an investment that loses money, it is easy to track that flow because we can compare the end result with the start value. The difficulty with accounting for physical objects is that often there is no ways to place value on them and also it may be hard to find a starting value in some instances. Activity 2 In this cartoon, the difference between the two companies could not be more remarkable. While Company A has three legs on its chair (social, financial, and environmental), Company B only has only leg (financial). This illustration shows perfectly why companies must be well-balanced when it comes to business operations. Company A understands that in order to be successful in the business world, there is more goals than just simply making a profit. I think that it is important to note that in this picture the financial leg of the chair is the middle one. In other words, it is the cornerstone of the company or the part that is the basis for everything else. The other two legs, social and environmental, provide solid support to the company, which is obviously very successful from a financial point of view. While success may be put down only to the financials, it cannot be understated the value of having good social and environmental responsibility for a firm. These measures often can't be valued, so it is difficult to try and judge success. I feel that it is also important to mention that the chair would not likely stand without the financial leg. All three legs are needed to support the chair, and this shows that companies must concentrate on many different facets of business in order to be successful over the long run. Company B only has one led, financial, and as a result the company is having difficulty maintaining balance. Although this leg is important for making the chair stand , there are no other supports. Company B has placed all of its eggs in the financial basket and has paid the price for doing so. By neglecting other aspects of business, such as social and environmental, the company is taking a huge risk. While it may be able to stay balanced initially, it is inevitable that the chair will take a fall because the company has focused all of its efforts on simple money making.

Decision Making As a Critical Part of Good Management Essay

Decision Making As a Critical Part of Good Management - Essay Example This report is based on certain scenarios of NENE, Benjamin and Peters Limited that are faced with different situations and require financial decision making on the choice of project, company evaluation as well as production decisions. The report will use financial calculations of various business analysis tools to help with the decision making. The report will be confined to the information provided in the particular case studies when making decisions. Other outside sources such as books and journals are also used to reinforce certain calculations, principles and analysis tools when making decisions concerning particular case studies. Alpha Payback period: 2 years (representing the year just before the cumulative cash flow becomes positive) + 31/38 (representing the remaining period for the project to achieve the zero cumulative cash flow amount). Therefore, the Payback period for project Alpha will be 231/38 years or 2.82 years. Beta Payback period: 3 years (representing the last year where the cumulative cash flow is still negative) + 5/35 (representing the proportion of years left for the last negative cash flow amount to become zero). Therefore, the Payback period for Beta project will be 3 5/35 years or 3.14years. The Average annual Operating profit is calculated by adding up all the operating profits provided for the six years period and dividing by the number of years. This comes to (205,000 / 6) = 34, 167.7 equivalent to 34,200 pounds. But this is the amount of depreciation. With the annual depreciation rate being 18,000 (100,000 – 10,000) / 5 = 18,000 pounds, the average annual operating profit will be the average annual profit minus depreciation. Which is 16,200 (34,200 – 18,000). This is the amount of depreciation. To advise NENE Limited on the most appropriate project to undertake, all the four appraisal methods must be evaluated. To begin with, using the cash flows of the two projects, it is vividly clear that that project Alpha seems a good project as it has more cash flow ( £105,000) than project Beta ( £83,000).  Ã‚