Rate of Reaction and Yield Conversion | Experiment

Rate of Reaction and Yield Conversion | Experiment At the outset, the objective of this experiment is to scrutinize the rate of reaction and the yield conversion. And the foremost principal that should be applied in order to determine both rate of reaction and yield conversion is material balance for batch reactions. As the experiment go on, students are supposed to perceive the factors catering the yield, rate of reaction and also the conversion. According to the hypothesis of the experiment, with the increment of ethyl acetate (reactant) from 0.1M to 0.2M the rate of reaction should gradually increase, leading to an augmentation of the rate of reaction as well as the conversion of sodium acetate from sodium hydroxide. Secondly, the theories that students must be acquainted with is, batch reaction, conversion, rate of reaction, conductivity yield and saponification. Saponification is an essential theory that drive the whole experiment, as it function by hydrolyzing an ester, forming a acidic salt and alcohol. With the absence of the pertinent knowledge of saponification, the experiment will not be successful. Thirdly, the modus operandi of the experiment, it comprises of 3 focal steps, preparation of reactant, experimental arrangement and procedure to be carried out during experiment. Students are to be particularly vigilant during the experiment, as reactant given, contain some perilous substances that are detrimental to human body. Subsequently, with the use of two different concentration of acetyl acetate during the experiment, the result and calculation of yield and rate of reaction could be analyzed. The result tabularize based on the two different concentration should show a vast divergence. The 0.2M of ethyl acetate should possess a higher yield and rate of reaction according to the hypothesis of the experiment. Before proceeding to the conclusion, students are supposed to go through some discussion on the experiment. The points to be discussed are namely preventative measure and the factors affecting the rate of reaction. As a final point, the conclusion, it concludes whether the hypothesis of the experiment corresponds with the actual experiment performed. Tentatively the conclusion should support the hypothesis of the experiment, which is, as the concentration of ethyl acetate increases, the rate of reaction and conversion also increases. (Singapore Polytechnic 2009) Material balance with chemical reaction 1. Introduction 1.1 Background Over the years, heaps of researches have been done to capitalize on the yield, conversion and increase the rate of reaction. These three factors are the point in which have close connection with the profit of the company. By increasing the yield it means more production generate with a standard amount of reactant used. As for rate of reaction, rationally, the faster the rate of reaction the greater the production rate within a certain period. During the experiment, batch process is employed as a medium for chemical reaction between sodium hydroxide and ethyl acetate to take place. The reaction produces sodium acetate and ethanol every thirty minutes, recording was taken every one minutes to note down the conductivity values. The whole process of obtaining the product from sodium hydroxide and ethyl acetate, consist of batch process, closed system, law of conversion and also saponification reaction. Batch process, is a process when a fixed charge of raw material is introduced and the products withdrawn before the cycle repeat. A closed system is a system where no material crosses the system boundary. As for The Law of Conservation of Energy it states that energy cannot be created or destroyed, but can change its form. Lastly For unsteady state process, it means, not all of the conditions in the process remain constant with time or the flows in and out of the system can vary with time. 1.2 Aim The aim of this experiment on material balance with chemical reaction is to allow students to employ the principle of material balance with chemical reaction for batch reaction by determining the yield, conversion and reaction rate. The purpose is to allow students to understand the change of reaction, when the concentrated NaoH react with ethyl acetate in a reactor as time passes by. With the knowledge of it, we will then be able to understand the saponification reaction of NaoH with ethyl acetate solution. 1.3 Hypothesis The hypothesis of the experiment is that during the Saponification reaction between NaOH and Ethyl acetate solution in the reactor, the concentration of NaOH would decrease due to the number of NaOH molecules being used for the reaction to produce sodium acetate. Furthermore, by increasing the concentration of ethyl acetate, the rate of reaction will also be increased 2. Theory 2.1 Introduction of Theory The role of the theory below is to give a more detailed explanations on saponification, batch process, conversion, yield, rate of reaction and conductivity, so that is can allow students to have a better perception on the experiment. 2.2 Batch Process Batch process is a process in which a fixed charge of raw material is introduced and the product is withdrawn before the cycle repeat. During the experiment, batch process is employed, as reactants are put in to the system for thirty minutes for reaction to take place. After which products are withdrawn and the apparatus used are sluice before another batch of reactant are introduced again. Owing to the change in concentration and production of new product, the reaction is categories under unsteady state. (Singapore Polytechnic 2009) 2.3 Saponification Saponification is defined as a process where ester is hydrolyzed, forming an acid salt and an alcohol. For this experiment, students are suppose to apply the knowledge they acquired on saponification and react ethyl acetate and sodium hydroxide and to produce sodium acetate and ethanol as the product of the reaction. Sodium acetate is form due to the displacement reaction which occurred during the overall reaction. The hydrogen in ester is displaced by the sodium ion in the sodium hydroxide, thus forming an acid salt; sodium acetate. The reaction is irreversible, hence once the product is formed, it cannot be re reacted to form the initial state of sodium hydroxide and ethyl acetate. However, reaction could be accelerated with the use of a strong acid (concentrated sulphuric acid) as the catalyst of the reaction. (Richard Hamner, Green Mountain Soap Company 2006) 2.4 Conversion Conversion is a technique, when a feed is converted to products. The term conversion can also be defined mathematically as percentage conversion. Percentage conversion is derived by dividing; moles of key reactant that react, with mole of feed introduced and multiply it with 100%. A 100% conversion is not likely to occur in the lab, this is due to the restrain of mechanism, which deprived the ideal conversion to transpire. (Singapore Polytechnic 2009) 2.5 Yield There are copious definitions for yield. The three generally prevalent definitions are yield based on feed, yield based on the reactant consumed and lastly yield based on the theoretical consumption of the limiting reactant. These three definitions are usually employed by chemical engineering industrial to guesstimate the yield of the products. Yield based on feed are exemplify to be; amount of desired product obtained, divided by amount of key reactant (limiting reactant fed). As for yield based on the reactant consumed, it is depict as; amount of desired products obtained, divided by amount of the key reactant consumed. Lastly as for yield based on the theoretical consumption of the limiting reactant; it is elucidate as; amount of product obtained, divided by the theoretical amount of products that would be obtained based on the limiting reactant if limiting reactant react completely. The usage of the formula varies from the given information. (Singapore Polytechnic 2009) 2.6 Rate of Reaction Rate of reaction is the speed of the overall reaction; it can be affected by temperature, conductivity, pressure, concentration surface area, and also catalyst. 2.6.1 Temperature Temperature will radically affect the rate of reaction. The collision of particles is determined by the energy a particle possessed. With a higher temperature, it will cater the particles to have a higher energy, hence increase the effectiveness of collision, and eventually resulting to a faster rate of reaction (Redspot Publishing 2005). 2.6.2 Pressure Pressure is defined as a condition of being compress. The increase of pressure will cater to a faster rate of reaction as the areas the particle have are smaller after compression. This therefore causes particle of be closely packet together which result to a higher frequency of collision between gaseous molecules. However, the increase of pressure is only applicable for gaseous molecules, as liquid and solid cannot be compressed (Redspot Publishing 2005). 2.6.3 Concentration Increases of concentration mean that the presences of particles in a specific volume have increased. While the volume/ space remained constant, the quantity of the particles increases, these instigate the frequency of collision to be higher, and also enhancing in the effectiveness of collision. This effect on particles collision will encourage a faster rate of reaction during the reaction (Redspot Publishing 2005). 2.6.4 Surface Area to Volume Ratio The bigger the size of the particles, the smaller the surface area for collision of particles, whereas, when the particles sizes are reduced, the chances of particles colliding in to each other will be higher. This is due to the increases in surface area of particles with it size are being reduce. Rate of reaction will therefore increases as frequency of collision increased (Redspot Publishing 2005). 2.6.5 Presence of Catalyst Catalyst is defined as a substance that is capable of reducing the activation energy of particles without itself taking part in the reaction. Therefore with the presence of a catalyst, particles will have a higher energy than the activation energy. These will lead to a higher frequency of collision and also the much more effective collision. Rate of reaction will gradually increases with more collision taking place (Redspot Publishing 2005). 2.7 Conductivity The conductivity values of sodium hydroxide is tantamount to the conductivity values of the solution, as the conductivity values of other reactants such as ethyl acetate, sodium hydroxide and ethanol are inconsequential. With the conductivity values of the solution ascertained, the concentration of sodium hydroxide in the reacting mixture can then be determined. The rate on how fast concentration of sodium hydroxide is depleting can that be easily achieved, by tabulating a graph (Copyright 2009 Russell Mainstream Supply Ltd) 3. Procedure 3.1 Preparation of Starting Reactant Before beginning with the experiment, students should go through and understand the Material Safety Data Sheet (MSDS) of sodium hydroxide and ethyl acetate. The understanding of the data sheet is imperative as, without apposite understanding on the chemical used, perilous hazard might occur. The procedure on handling and disposal of chemical must be habituated before the beginning of the experiment. Students are handling with highly acidic concentrated reactant, therefore, disposable glove and chemical goggles should be putted on at all time during the experiment. 500mL of 0.01M of sodium hydroxide solution and 500mL of 0.01M ethyl acetate was the concentration needed to be prepared for this experiment. 500mL of 0.01M sodium hydroxide are suppose to be prepared, to do so, measuring cylinder was used to measure the required volume of 0.01M NaOH and poured in to a 500mL volumetric flask. De ionized water is poured in to the 500mL mark on the volumetric flask for dilution purposes. To ensure a fine dilution, flask should be covered with stopper and shake to ensure solution properly mixed. Preparation of 500mL of ethyl acetate solution was done by pouring 250mL of de ionized water into a 500mL volumetric flask, followed by measuring the stock solution using a micropipettor and dispenses it to the 500mL volumetric flask. Top up solution up to 500mL mark, and cover it with a stopper and shake the solution to ensure solution is well mixed. Experimental Setup Conductivity meter 1-litre reaction beaker Magnetic stirring device Conductivity probe Reacting mixture Retort stand Procedure During Experiment As the preparation of the sodium hydroxide solution is completed, solution is poured in to the reactor with the reaction conditions adjusted to predetermined level. The reaction conditions are directly related to the overall reactions; hence the recording of the condition is essential. Examples of the condition are, temperature, stirring speed, concentration and volume of reactions. Before the stirring process inaugurate, ensure that the conductivity meter probe is positioned into the reacting mixture and a stopwatch is ready for timing purposes. Ethyl acetate is to be poured in to the reactor, and recording should start immediately. While the solution is being stirred in the reactors, conductivity values are recorded at a regular interval of one minute for thirty minutes. After thirty minutes, reactor is stopped and a magnetic rod is used, to remove the magnetic stir bar in the reactor. The conductivity probe is then withdrawn and sluiced scrupulously with de ionized water. As for t he product, it is being disposed into a plastic waste container. The experiment is to be repeated based on the experimental methodology discussed with lecturer. However, to ensure consistency of the experiment, all glassware is to be rinsed. Once all the experiment is accomplished, all the equipments should be properly cleaned and chemical used are to be disposed in to the plastic waste container. Finally waste will be send to W314 for proper treatment before discarding and glassware used should be placed back to original location. Result and Calculation 4.2 Determination of the Yield of Sodium Acetate Determination of the yield of sodium acetate is associated with the concentration of sodium hydroxide. In tandem with the given information on the concentration of sodium hydroxide, the molar ratio employed can be dexterously deciphered. From here, calculation to verify the yield can be facilely obtained by using the mole, which is calculated using the molar ratio of sodium hydroxide and ethyl acetate. Finally, utilize the formula of yield calculation and the determination of the yield of sodium acetate can be anatomized. 4.3 Yield and Rate of Conversion of 0.01M Ethyl Acetate Solution for 15 Minutes. Concentration of sodium hydroxide at one minute interval NaOH + CH3COOC2H5 à   C2H5OH + CH3COONa Theoretical Mole of NaOH = 0.01 X 0.5L = 0.005 mol Actual Mole of NaOH = 0.00156 X 0.5L = 0.00078mol Number of moles reacted = 0.005 0.00078 = 0.00422mol Conversion of NaOH= 0.00422/0.005 X 100% = 84.4% Theoretically, since 1 mole of NaOH react and form 1 mole of CH3COONa, actual mole of CH3COONa= 0.00078 Yield of CH3COONa= 0.00078/0.005 =0.156 4.4 Yield and Rate of Conversion of 0.02M Ethyl Acetate Solution for 15 Minutes Figure 4.4.2. Graph showing concentration of sodium hydroxide against time (0.02M of ethyl acetate used) NaOH + CH3COOC2H5 à   C2H5OH + CH3COONa Set 2 Theoretical mole of NaOH = 0.02 X 0.5L = 0.01 mol Actual mole of NaOH = 0.0017 X 0.5L = 0.00085mol Number of moles reacted = 0.01 0.00085 = 0.00915mol Conversion of NaOH= 0.00915/0.01 X 100% = 91.5% Theoretically, since 1 mole of NaOH react and form 1 mole of CH3COONa, actual mole of CH3COONa= 0.00085 Yield of CH3COONa= 0.00085/0.01 =0.085 4.5 Rate of Reaction of 0.01M of Ethyl Acetate Graph 4.5.1. Shows the rate of reaction of sodium hydroxide when 0.01M of ethyl acetate was added. Graph shown above is straight line. Gradient= 0.00265-0.0012 à · 20 1 = 0.0000763 (From the graph) 4.6 Rate of Reaction of 0.02M of Ethyl Acetate Graph 4.6.1.Shows the rate of reaction of sodium hydroxide when 0.02M of ethyl acetate was added. Graph shown above is straight line. Gradient= 0.00275 0.00125 à · 20 1 = 0.0000789 (From the graph) 5. Discussion 5.1 Factors Affecting Rate of Reaction As indicated above, there are numerous factors that are capable of affecting the rate of reaction however; the only applicable one is the differences in concentration as the rest (temperature and pressure) are kept constant. Based on the experiment did, as the volume and concentration increases, the rate of reaction also increases, this is   by virtue of the presence of more particles in the solution, hence increasing the chances of particles colliding to each other, which eventually result in an increase in the rate of reaction. Below is a graph to further elaborate on the explanation on the difference in concentration. The judgment on the rate of reaction is based on the steepness of the graph. As shown, the black line which contains 0.02M of ethyl acetate has a slower rate of reaction as compared to the one in red which is 0.01M of ethyl acetate. This repudiated the hypothesis of this experiment. The dialectics of this contradiction is, there might be source of contaminant on apparatus or solution used. 5.2 Factors Affecting Conversion and Yield The ideal rate of conversion and yield will never be actualize under school environment or even in industries. As, in school students are using eye sight as a gauge for the experiment which indubitably cause error due to parallax error, as for industries, despite being able to afford high cost machines and computer, the cunctation between human and machines will cause an slight differ on the rate of conversion and yield. 5.3 Factors Affecting Conductivity Values As mention on the theory section, the conductivity values of ethyl acetate are imperceptible; therefore the conductivity rate of sodium hydroxide is employed instead. During the experiment, 2 different concentration of ethyl acetate was used. The first set of experiment, we used a concentration of 0.01M. It produces a constant decreasing rate at every one minute interval. This shows that while the moles of sodium hydroxide are depleting, conductivity value to decreases too. As for the second set of experiment, the same things occurred but at a same rate as the first set of the experiment. This contravene the theory, as suppositionally, the increases in concentration to 0.02M will cause the moles of sodium hydroxide to deplete at a faster rate, which result to a faster decreasing rate for conductivity. Again, the dialectics of this contradiction is, there might be source of contaminant on apparatus or solution used. 5.4 Precaution in Experiment As we all know, ethyl acetate are very volatile, it release harmful gas when it is expose to the environments. Therefore, adding of ethyl acetate into the volume metric flask must be carried out in the fume hood to prevent students from inhaling gases produced from ethyl acetate, which is harmful to human body. In addition, safety goggles and rubber gloves should be worn at all times during the experiment. This help to prevent students from having direct contact with the acid which might cause skin irritation of temporary loss of vision. 5.5 Comparison of Two Different Tests As two different concentrations were employed during the experiments, the result on yield and conversion rate will be different. 5.5.1 Comparison of the Yield of Two Different Tests Upon completion of experiments, the differences in yield were realised. The yield of 0.01M ethyl acetate was 0.156 and the yield of 0.02M ethyl acetate is 0.085. Theoretically, due to the increment in concentration, the yield of 0.02M of ethyl acetate should be higher as, since more reactants is used; it will rightfully result in more products being formed. However, as mention above, there might be chances of the reactants or apparatus used being contaminated, which result in the huge differences between the yields. 5.5.2 Comparison of the Conversion Rate The conversion rate of 0.01M of ethyl acetate was 84.4% and the conversion rate of 0.02M of ethyl acetate was 91.5%. The result shown was excellent, as high conversion rate will mean that, majority of the reactant was fully utilized, hence saving cost. 6. Conclusion Based on experiment, I can construe that the higher the concentration of ethyl acetate, it will result to a much faster rate of reaction, and a higher rate of conversion. The conductivity value is interred related and proportioned to the concentration of sodium hydroxide. Therefore, since observation and hypothesis are similar, the hypothesis is true. The aim of the experiment are also fulfilled, as scrutiny of the experiment have verify that, while the concentration of ethyl acetate got higher, the rate of reaction and rate of conversion increases. In addition, adding of catalyst or increasing surrounding temperature could also result in a faster rate of reaction which tantamount to an increment in rate of conversion.

Health Promotion Strategies for Smoking Cessation

Health Promotion Strategies for Smoking Cessation Drawing on appropriate literature, provide a critical analysis of the application of health promotion philosophies, principles and approaches underpinning public health practice in relation to a relevant topic (e.g. any public health policy in the UK) The chosen public health topic is smoking. The student has selected this subject because it is a current issue of particular relevance because of the prohibition to premises becoming smoke- free if they are open to the public, due to be enforced in England in July 2007 (Health Act 2006). Smoking is also an important topic because it has been identified as the single most significant public health problem in the UK (Royal College of Physicians 2000); approximately 114,000 smokers in the UK die as a result of smoking (Action on Smoking and Health 2005). The treatment of smoking- related conditions costs the National Health Service (NHS) up to  £1.7 billion per year with an estimated cost of  £1.7 million to British industry every year as the result of lost working hours caused by smoking- related illness (Gommans 2005). According to Tannahill (1985) health promotion is a broad concept which encompasses health education and health prevention. Health education refers to working with groups and individuals to promote healthy behaviours, whereas health prevention refers to strategies which prevent ill- health such as immunisation. Public health is defined as: ‘The science and art of preventing disease, prolonging life and promoting health through organised efforts of society’ (Acheson 1988) This definition implies a collective approach; however public health has been criticised as being medically dominated (McPherson 2001). Philosophies of health promotion provide a framework for exploring our rationale and justification for wanting to change health- related behaviour. Seedhouse (2002) refers to health promotion as a ‘moral endeavour’; in other words health professionals are required to make judgments about if, how and when to intervene in relation to the health behaviours of patients, clients and service users, taking into account individual needs and priorities. In some cases health behaviours affect not only the individual but others, also; this applies to the effects of secondary smoking, for example. Taking into account the secondary effects of health behaviours may impact upon the ‘moral endeavour’ of health professionals and health policy makers. Moral judgements underpin the work of health professionals; the student recalls an incident when a lady aged 100 who had smoked all of her adult life and who clearly did not have long to live, asked to be helped to smoke a cigar ette. This simple act gave her pleasure and it seemed irrational and unkind not to respond to her request. Moral judgements are not always straightforward. Philosophical principles applicable to health promotion include logic; the development of reasoned argument (Naidoo and Wills 2000a). Our arguments for changing health-related behaviour are evidence- based involving for example, the type of statistics about smoking highlighted in para 1 of this page. There is a large body of evidence which supports the argument that smoking is damaging to health and yet, as discussed further on (para.2, p.4), it can be seen that individuals do not always respond to logical reasoned argument in relation to modifying health- behaviours. Epistemology, another philosophical principle, is concerned with the debate about truth, in this case exploring what health really means. There are different models of health including the medical and social models. The medical model is concerned with the categorisation of illness and disease and with specific medical interventions given by the ‘expert’ (the health professional) to the patient, who has traditionally been a passive recipient of this expert advice and intervention. A social model of health involves a broader interpretation of health which is influenced by a range of determinants, such as age, gender, socioeconomic factors, education and environment. Within this model, strategies to improve health status adopt a wider perspective than the medical model, seeking to address the aforementioned determinants. In relation to health promotion, the medical model might not take into consideration, factors which affect the individual’s behaviour such as their socioeconomic status. There is evidence that smoking behaviour is more prevalent among more disadvantaged socioeconomic groups (Gulliford et al 2003). It is important therefore to take into consideration this and other, factors when developing health promotion strategies and not to reduce the issue to one of the giving and receiving of information with an assumption that behaviour will be modified as a result. Health promotion philosophies are also concerned with ethics. The theory of ethics is divided into two main categories: deontological and consequential. Deontology is concerned with our duty to behave according to a set of moral principles. On page 1, paragraph 5, the issues/ dilemmas involved for health professionals in making moral judgements, were referred to. Consequential ethics are based on the premise that a judgment about whether an action is right or wrong is dependent on its end result, in other words whether the ends justify the means. This has some interesting implications for health promotion. Further on (p.4) some health promotion strategies are discussed including a debate about the use of legislation, i.e. enforcement, to bring about health- related behavioural change. As stated earlier (para.1, p.1) this issue is of particular relevance to smoking. The argument for enforcement is that the end result of reducing smoking behaviours and resultant improvement in health s tatus as well as savings made to the cost of healthcare, justifies the prohibition legislation. Broad approaches to health promotion reflect the models of health referred to (para. 2 on this page) and are categorised by Naidoo and Wills (2000b) as medical/ preventative; behavioural change; educational; empowerment and social change. Within the medical approach there are three levels of prevention: primary, secondary and tertiary. To apply these specifically to smoking; the primary level aims to prevent smoking behaviour before it begins, the secondary level is concerned with preventing the recurrence of a smoking- related illness or disease by encouraging the patient to give up smoking and the tertiary level is about promoting quality of life within a chronic condition such as diabetes, in which case the message would be that the individual’s quality of life would be optimised if they do not smoke. The behavioural approach focuses on lifestyle issues (Laverack 2004) Emphasis is placed upon the individual’s responsibility for health which does not take into account factors outwith the individual’s control and as such, this approach has been criticised for being ‘victim- blaming’ (Tones and Tilford 2001), shifting responsibility away from the government for example, in relation to individual health status. The educational approach is less about placing responsibility on individuals in relation to their health- related behaviours and more about giving information and facilitating people to make informed choices about their lifestyle choices. This approach relates to the rational- empirical strategy described further on (para. 2, p.4) as it is based on the assumption that giving people information will lead to attitudinal and behavioural change. As will be seen, this does not always happen. This approach is also dependent on a level of concordance from the individual, for example a commitment to attend regular sessions as part of an educational programme. The empowerment approach reflects the normative- re-educative strategy described further on (para. 4, p. 4) and entails giving people the means to have increased control over the determinants that affect their health status. This involves community participation, a collective approach which is embedded within the philosophy of public health. According to Laverack (2004) there can be different interpretations of what constitutes a ‘community’. We tend to think in terms of a geographical community; a locality. It might be more effective in health promotion terms to think of a community as a group with shared characteristics, such as young people. The reality of community participation is that it tends to be more evident among communities who are educated and higher up the socioeconomic scale. People who are disadvantaged are less lilkely to be motivated to participate in health- related programmes- they may feel marginalised and are preoccupied with the issues that their s ituation presents, such as concerns about housing and income; health promotion is not viewed as a priority, and smoking might be used as a means of helping them to cope with adversity (Hanson Hoffman 1998). This leads onto the notion of the social change approach. This is quite a complex concept that involves health promotion initiating and driving social change in order to improve conditions that are conducive to health (Erben et al 2000). Social change would involve making the sorts of improvements that would place health issues more firmly on everybody’s agenda. There are many factors that contribute to social change such as legislation and shifts in ideas about codes of behaviour. For example, attitudes about sexual behaviour have changed over the years, contributing to health issues such as increased incidence of sexually transmitted disease and a rise in teenage pregnancies (Measor et al 2000). There is some indication that social attitudes to smoking have changed (Moonie 2005) which is arguably, a positive development; some smokers report that they feel like social pariahs! The social change approach is underpinned by an acknowledgement of the complexity of what influences health- related behaviours and can be linked to the social model of health, discussed in para. 2, p.2. Specific health promotion methods are quite diverse including: giving information in a didactic manner, for example via talks to large groups; lobbying local health and Government authorities; making use of the mass media (for example there is currently a television information advertisement about the early signs of myocardial infarction); working with groups; teaching social or life skills that are related to health status; publicity events, e.g. health fairs; facilitating community groups; enforcing health regulation; one to one advice and education; networking and liaising with other workers; instructing on specific techniques, such as self-administration of insulin; facilitating self help groups and enabling health promotion by the provision of support services such as childcare and interpreting facilities (Naidoo and Wills 2000c). Most of these methods can be adapted for use with smoking cessation. The change strategies framework by Bennis (1976) can be applied to health behavioural change and is of particular relevance to anti- smoking legislation. It includes three strategies for bringing about change which are based on different assumptions about human behaviour, and which, when applied to health promotion, involve three distinctly different approaches. The first strategy (rational- empirical), is based on the supposition that ‘knowledge is power’. Within this strategy it is assumed that an individual will modify their health- related behaviour in response to receiving reliable and valid information. For example, if the government or a health professional issues advice about the dangers of smoking, the individual should reduce or cease their smoking habit. It is well- known that this often does not happen; even some health professionals smoke, despite their level of knowledge about the dangers (McKenna 2001). The reasons for this are usually related to dependenc e. It is also possible that human beings adopt Freudian mental defence mechanisms, which are maladaptive coping strategies used (in this instance) to circumvent evidence of the negative consequences of a health- related behaviour, such as smoking. These include denial, intellectualisation (which involves citing contradictory evidence), or rationalisation, among others (Lupton 1995). Resorting to these defences can undermine the power of knowledge and evidence, however valid and reliable it is. The second strategy (power- coercive) involves the use of legislation and policy change in order to enforce health- related change. A good example of this is the anti- smoking legislation referred to in paragraph 1, page 1. There is some evidence to demonstrate that no- smoking policies do have the effect of reducing smoking behaviour (Brigham et al 1994). There has been criticism of the legislation as it is seen by some as an infringement of the individual’s right to choose. However this view is countered by the argument that the health of non- smokers can be adversely affected by cigarette smoke, and these people have the right to be protected (HM Treasury 2004). It appears that many non- smokers feel that they should be safeguarded from the effects of passive smoking (Pilkington et al 2006). The first two strategies adopt a ‘top- down’ approach whereas the third strategy (normative- re-educative) is based on the assumption that an individual is more likely to change their health- related behaviour if they have had involvement in bringing about the change; if they feel empowered. This approach underpins some of the health promotion strategies referred to in para. 1 of this page; for example facilitating community groups. However as discussed earlier (para. 2, p.3), it seems likely that community participation and empowerment might be of limited value within certain groups, such as people who are disadvantaged or marginalised. In conclusion, it appears that a multi- faceted approach needs to be adopted in order to address health- behaviours which are harmful to health, in this instance smoking. The starting point is that there is incontrovertible evidence that smoking is harmful to health, and can lead to premature death, as cited in para.1, p.1. The question of whether we have the right to choose to smoke can be challenged because of the evidence- base that demonstrates that smoking can affect the health of others (para. 3, p. 4). However it is important to recognise that people who smoke need adequate support and resources in order to be able to stop. There is existing evidence that legislative and policy change can reduce smoking behaviours (para. 3, p.4) and it will be interesting to see the outcomes of the current legislation (para. 1, p. 1). However, smokers also need clear, unambiguous messages about the effects of smoking, consistent support from health professionals and accessible information abou t smoking cessation services (Kerr et al 2006). References Acheson D. Independent Inquiry into Inequalities in Health: Report. London Stationery Office 1988. Action on Smoking and Health Factsheet No. 2. Smoking Statistics: Illness and Death. ASH 2005. Bennis et al The Planning of Change Holt Rinehart and Winston 1976 Brigham J, Gross J, Stitzer M and Felch L Effects of a restricted work-site smoking policy on employees who smoke. Am J Public Health. 84(5): 1994 pp. 773–778. Department of Health. Health Act 2006. Part 1 Chapter 1. 2006. Erben R, Franzkowiak P and Wenzel E. People empowerment vs. social capital: from health promotion to social marketing. Health Promotion Journal of Australia. 9(3) 2000 pp. 179-182 Gommans J, Bunton J and MacDonald G. Health Promotion: 2nd Edition. Routledge. 2005. p.189. Gulliford M, Sedgwick J and Pearce A. Cigarette smoking, health status, socio-economic status and access to health care in diabetes mellitus: a cross-sectional survey. BMC Health Service Research 2003 pp. 3: 4. Hanson Hoffman. Recovery from Smoking Second Edition: Quitting with the 12 Step Process Revised Second Edition. Hazelden. P.1 Kerr S, Watson H, Tolson D, Lough M and Brown M. Smoking after the age of 65 years: a qualitative exploration of older current and former smokers views on smoking, stopping smoking, and smoking cessation resources and services. Health and Social Care in the Community. 14(6) 2006 pp. 572-582, Laverack G. Health Promotion Practice: Building Empowered Communities. Sage publications. 2004. pp. 21, 22, 44. Lupton D. The Imperative of Health: public health and the regulated body. Sage Publications. 1995. p. 111. Mckenna H, Slater P, McCance T, Bunting B, Spiers A and McElwee G. Qualified nurses smoking prevalence: their reasons for smoking and desire to quit. Journal of Advanced Nursing. 35(5). 2001. pp.769-75 McPherson K. Public health does not need to be led by doctors: for. BMJ. 30; 322(7302) 2001 p.3–1596. Measor L, Tiffin C and Miller K. Young Peoples Views on Sex Education: Education, Attitudes and Behaviour. Routledge 2000. p.4. Moonie N (Ed.) GCE AS Level Health and Social Care Double Award Book. Harcourt Heinemann. 2005. p.29 Naidoo J. Wills J. Health Promotion: foundations for practice (2nd edition). London, Baillià ¨re Tindall 2000. pp. 113 Pilkington P, Gray S. Gilmore and A. Daykin N. Attitudes towards second hand smoke amongst a highly exposed workforce: survey of London casino workers. Journal of Public Health. 28(2) 2006 pp.104-110 Royal College of Physicians. Nicotine addiction in Britain: A report of the Tobacco Advisory Group of the Royal College of Physicians. RCP 2000. Seedhouse D. Ethics: the heart of healthcare. Second Edition. John Wiley and Sons.. 2002. Chapter 2 Tannahill A What is Health Promotion? Health Education Journal 44(4) 1985 pp. 167-8 Tones K and Green J Health Promotion: Planning and Strategies. Sage Publications. 2004. p. 16. Tones K and Tilford S. Health Promotion: effectiveness, efficiency and equity. Nelson Thornes. 2001. p. 28. Total word count 2752

The Characteristics Of Shakespeares Comedies :: essays research papers

The Characteristics of Shakespeare's Comedies Shakespeare wrote many different forms of literary works and one of them is comedy. At the end of his professional life he had written four famous comedies which were later called his "romances". Shakespeare's comedies were not primarily love stories but they all included a love plot. His romances all had the happy ending of a comedy, but in a way they hinted on violence (Prentice Hall Literature). His focus and emphasis was clearly towards the structure and language of his comedies, which made his comedies quite distinct from others. The ideas and concepts also made his comedies designated, as we experienced it in one of his most famous comedy A Midsummer Night's Dream. The structure of Shakespeare comedies is common in all his comic drama. The play goes through three phases. In the first stage there is order and discipline. Then it goes through a situation where there is chaos and disorder. Finally in the third stage order is restored again and the play ends in a festive ending. In the beginning of A Midsummer Nights Dream we see that Theseus has entire control over the people in Athens and he is getting ready to wed Hyppolita, queen of the amazons. Then quickly the whole situation changes when Lysander and Hermia flee into the forest and complications start to build up. The play ends with a joyful ending, when daylight has returned, the duke and duchess and the four lovers are united in the bonds of marriage and they are entertaining themselves with dance and music. Their world of love has come to its proper order. The language was evidently the main reason why Shakespeare's comedies were more amusing than other comedies of his time. He used many techniques to illustrate humor, and sometimes we have to know the inner meanings to find it comical. The play of words or puns were very popular in the comedies of Shakespeare. Quince makes a good pun when he mentions the French crown. It is a pun because it could have more than one meaning, it could mean gold coins or also baldness which is often caused by treatments of STD. Another good example of a pun is what Lysander says to Hermia "For lying so, Hermia, I do not lie". This example shows how good Shakespeare was at playing around with words as he uses the word lie in two different ways. Lie could mean both lying down or not telling the truth. Some of these puns show a lot of facetiousness and wit. Lysander says to Demetrius "You have her father's love.

health drinks Essay -- essays research papers

Importance and Effects of Health drinks and Soft drinks in 21st century Introduction: Here we are going to discuss about the relevance and effects of health drinks and soft drinks like coke. We have explained in our study the advantages and disadvantages of these drinks. What are the ingredients of these drinks? How are they affecting every age group in the 21st century? Should they be used or not and if used in what amounts. The importance of these drinks help us to peep into their world and the drinking habits developed by people. According to a study 33% of U.S. adults that are 20 years of age or older are estimated to be overweight. Furthermore, over 58 million Americans weigh at least 20% or more than their ideal body weight. With exhaustion and high stress levels due to hectic lifestyles, many people are relying on energy drinks to give them that second wind. Whether they help to stay awake through a test that day, or revive you for a party that night, energy drinks are much appreciated, and are becoming quite popular. With energy drinks increase in popularity, and high demand, many companies have decided to come out with one. Companies such as SoBe, have SoBe Adrenaline Rush, Starbucks DoubleShot espresso and cream, and Mountain Dews AMP energy drink. Other popular energy drinks include, Red Bull and Rockstar. SoBe Adrenaline Rush has the familiar tangy taste of a grapefruit with a light yellow color. It contains 1000 mg taurine, 500 mg d-Ribose, 250 mg L-Carnitine, 100 mg Inositol, 50 mg Guarana, and 25 mg Panex Ginseng. This drink including many others is not recommended for children, pregnant women, or persons sensitive to Caffeine. Starbucks DoubleShot espresso and cream in caramel in color, and tastes very similar to the coffee frappuccinos Starbucks has in the glass bottles. It is definitely a great drink to waken up with in the morning. AMP energy drink (from Mountain Dew) contains matodextrin, Ginseng, Taurine, B vitamins and Guarana. It is sour and tangy and tastes like fruit snacks. Like mountain dew, AMP is a lime green color. Red Bull is a yellow drink with a sour, tart taste. that includes, 1000 mg taurine, 600 mg glucuronolactone, and 80 g of caffeine. The benefits you get from drinking a Red Bull include, improving your performance, concentration, and reaction speed, vigilance, emotional status. It stimulates your metabolis... ...ng obesity and bone weakening has the potential to synergistically undermine future health. Adolescents and kids don't think long-term. But what happens when these soft-drinking people become young or middle-aged adults and they have osteoporosis, sedentary living and obesity? By that time, switching to water, milk or fruit juice may be too little, too late. To curb this problem the only solution is to provide access to healthier drinks and snacks and prohibits soft drinks contracts in schools and eliminates school advertising and promotional events that promote unhealthy snack and beverage choices. Alternative acceptable beverages include water, unsweetened flavored waters, 100% fruit juice, 100% vegetable juice and low fat plain and flavored milk. Conclusion: From this we can conclude that fizzy drinks and the health drinks both can be injuries to health if use in excess. Every thing that is used within its limits is useful rather then consuming it over and over. Health drinks or energy drinks have a better substitute like pure 100% juices etc... Health drinks can be used but to a proper extent. But a fizzy drink like coke has no better effects to the health rather worsens it.

Winston Moseley

Outline Thesis Statement: Winston Moseley has had three major details that impacted his life, such as his back ground, his crimes, and his time in jail. I. Winston Moseley was a working man and had a family. a. Moseley owned a home in Richmond Hill, Queens, New York. b. He worked as a machine operator in New York. c. Moseley was raising two children with his wife in Queens. d. He was apprehended on March 18, 1964, while trying to steal television. e. He did not have any previous criminal record. II. Moseley was charge with three murder cases. a. The crime he is most known for is the Genovese murder on March 27, 1964. b.On the day of the arrest, for the murder of Catherine Genovese, Moseley confessed to the murder of two other women. c. He confessed to the murders of Barbara Kralik, Annie Johnson, and Catherine Genovese. d. Moseley was appointed the death sentence. e. On the other hand, Moseley’s mental condition was admitted into the case as new evidence and his sentence was r educed to life in prison. III. Once convicted, Moseley tried everything to acquire early parole. a. Winston Moseley had six appeals between the years of 1984-1995, only to be denied. b. The state parole board described Winston’s behavior as bizarre and self-serving in his meetings. . While in prison Moseley wrote many letters to newspapers and magazines in order to receive early parole. IV. For these reasons, is why Winston Moseley is where he is today. a. Moseley is a criminal and has spent 48 years and counting of his life in prison. b. He had the American dream—a house, wife, and kids. c. He threw his life away when he decided to become a murder. Image a woman with a loving husband, the couple enjoy raising two wonderful children together and are happily married. The husband has a solid job and seems to be a law-abiding citizen.However, on a ordinary spring day, her joyful home life comes to a complete standstill. Her husband, Winston Moseley is arrested on three co unts of murder. In addition to murder, Winston Moseley is suspected of being associated with several other recent crimes. Winston Moseley’s life can be characterized by three major settings: his family life, his crimes, and his imprisonment. Winston Moseley was known to everyone around him as a typical family man, and he owned a house in Queens, New York. Winston worked as a machine operator in New York, and he work very hard to support his family.He and his wife, were also busy raising their two children. He did not have any type of previous criminal record. However, Winston Mosley was arrested on March 18, 1964 for attempting to steal a television. He was 28 years old at the time of his first arrest. This shocking arrest was only the beginning of convictions made towards Moseley. (Gado â€Å"Investigation† 1) Moseley secret life of crime began suddenly began to unravel. Moseley was later charged with several rapes, burglaries, and three homicides (Philpin 3). The cri me for which he became most well-known was is the Genovese murder on March 27, 1964.On the day Mosley was arrested for the murder of Catherine Genovese, he also confessed to the murder of two other women. He had previously murdered Barbara Kralik and Annie Johnson, as well as Catherine Genovese (Philpin 3). Following his trial, Moseley was given the death sentence. Later, Moseley’s unstable mental condition was admitted into the case as evidence of his unpredictable behavior, and his sentence was reduced to life in prison. During his imprisonment, Moseley tried numerous times to acquire an early parole. He attempted to demonstrate every evidence of personal reform.He read books, wrote letters, and he made an effort to earn a college degree in Sociology. A rumor had even circulated that Moseley wrote a letter to the Genovese family asking for their forgiveness (Philpin 3). Winston Moseley had six appeals between the years of 1984 – 1995 while in the Attica prison, yet h e was denied each time. The State parole board conducted several evaluation meetings with Winston Moseley and described his behavior as odd and self-absorbed. Moseley wrote many letters to newspapers and magazines in his efforts to obtain sympathy and receive an early parole. His efforts were ineffective. Gado â€Å"Journey†) Winston Moseley remains in prison to this day. So far, he has spent 48 years of his life in prison. He was once a family man who lived the American dream. He had a lovely wife, healthy children, a house, and a good job. Yet, Moseley chose to throw away this pleasing life for a life of crime, including the worst crime of all – murder. Works Cited Gado, Mark. â€Å"Investigation. † n. d. Web. 20 Feb. 2012. —. †The Journey of Winston Moseley. † n. d. Web. 20 Feb. 2012. Philpin, John. â€Å"Who the Hell Is Winston Moseley? And Why Would Anyone Care? † 30 Dec. 2005. Web. 20 Feb. 2012.

Health Write Up Alcohol Essay

Alcohol is one of the most abused drugs in America. It is easily accessible, cheap, and perfectly legal to buy and consume. The way alcohol works is that it enters your bloodstream and moves into the biological membranes in your body. Up to 20% of alcohol consumed is absorbed through your stomach lining and 75% is absorbed in your upper intestine directly into the blood stream. Absorption rate is increased if you mix with carbonation, it is decreased with food, and if you drink higher concentration of alcohol (ie 80 proof or higher) absorption is also slower. The amount of alcohol absorbed along with factors of weight, body fat, sex, and in some cases race all depends on your blood alcohol concentration (or BAC). This is the ratio of alcohol absorbed to the rate of your metabolism. Alcohol is only metabolized through the liver, and cannot be speed up with the use of exercise, drinking coffee, eating certain food, or taking a cold shower. Alcohol has a generally negative impact on health. Chronic use of alcohol will have the user develop sever cirrhosis (scarring of the liver), higher blood pressure, various cancers, and major cognitive impairments, memory loss, including dementia. The constant abuse of alcohol or alcohol dependence will cause people to live shorter lives and they will have withdrawal symptoms when they don’t have a drink for periods of a time. However, there is help very readily available for those who are seeking a change in their drinking habits with many programs of all types.

Project Management Careers

Project Management Fall 2012 Search the internet for terms project management, project management careers, project portfolio management, information technology project management. Write down the number hits that you received for each of these phrases find at least 3 web sites that provide interesting information on one of the topics write a two page paper summarizing key information about these 3 web sites as well as project management institution’s Web site (www. pmi. org).Gant charts were dominantly used in the beggings of project management however in the 1950’s Entire jobs and professional careers were made around the idea of a â€Å"project manager†. Now in beginning of the 21st century technology has revolutionized the field of project management once again. My research and search results have shown that Project Management Jobs have sustained demand over the last 8 years compared to the general field of technology jobs which has seen steep decline since 200 4. Google Trends AnalysisOne of the articles I had read form InformationWeek was titled â€Å"Project management Gets Lean† (IT can't afford to do projects the old way. Lean project management gives a better picture of success or failure. ) In this article they explain a scenario where workers feel like projects are happening to them and not because of them. The article goes on to say that, Project managers can get so wrapped up in Gantt chars and forecasting that they often don’t look at the overall picture and this can lead to scope skewing or project failure.Managers have to start approaching projects as Participation over Compliance. Compliance makes everyone feel like a captive prisoner where was participation can give the individual the perception of being a part of the solution. It is staff attitude which often accounts for a projects success or failure. Also if a group does not understand a project is can often add confusion that may hinder the perceived succes s of an assignment. If at all possible it is best to keep it simple; adding complexity to the user is often not a requirement of a complex system.All users are not power users and do not require the grandiose system that upper users need. It is not a coincidence that Information Technology people often look to project management when they are interested in a career change. Both fields have Rigid deadlines, tight budgets, require careful planning, painstaking deployments all of which are common variables Information Technology and project management. It is difficult to classify a project as success for failure because most often projects in the IT field are never complete.As summed up in the article, the nature of IT means you are never done. Only when a project is a failure are you done. Having the ability to recognize failure is a skill that many project managers lack due to inflated ego. Figure A General Search Results Google Search ResultsProject ManagementAbout 691,000,000 resul ts   Project Management CareersAbout 138,000,000 results Project Portfolio ManagementAbout 84,200,000 result Information Technology Project ManagementAbout 190,000,000 results| http://www. nformationweek. com/global-cio/interviews/leaving-it-4-job-options-for-frustrated/232900489? queryText=project%20management http://www. informationweek. com/global-cio/personnel/project-management-is-finally-getting-re/227800091? queryText=project%20management http://www. informationweek. com/software/project-management-gets-lean/232600005? printer_friendly=this-page http://www. google. com/trends/explore#q=project%20management%20jobs%2C%20Information%20Technology%20Project%20Management;cmpt=q