Start of experiment Heat Essay Example for Free

Start of experiment Heat Essay Prediction I predict that whenever there is a temperature difference , ehat energy will be transferred by conduction, convection or radiation fro the hotter to the cooler place. This increases the internal enrgy , which is the sum of the kinetic energy and the molecular potential energy of each molecule in an object, of the cooler atoms raising the temperature , and dreases the energy of the hotter atoms , lowering theirs. It continues until the temperature is the same across the region. Conductivity or thermal conductivity is a measure of how good a conductor a material is. The rate of heat energy transfer through an object depends on the conductivity of the material and the temperature gradient. Temperature = t2 -t Gradient X t1, t2+ temps at point 1 and 2 X=distance This is the temperature change with distance along the material . The higher the conductivity and the steeper the gradient, the faster the energy transfer. Heat transfer to polystyrene cup Convection is a way in which heat energy is transferred in liquids and gases. If a liquid or a gas is heated it expands, becomes less dense and rises. Cooler, denser liquid or gas then sinks to take its place. Thus convection current is set up. Coastal breezes used to explain convection currents We use leslies cube in my preliminary work to measure radiation, radiation is a way in which heat energy is transferred from a hotter to a cooler place without the medium, ehich is any substance through which a physical effect is transmitted. This can occur through a vacuum unlike the other two forms of heat transfer. Leslies cube is used to compare powers of radiation We did our own test with the Leslie cube in class here are our results. Start of experiment Heat lost during experiment. Matt black 92 degrees 34 degrees 68 degrees 26 degrees Shiny black 92 degrees 32 degrees 68 degrees 23 degrees Shiny white 92 degrees 29 degrees 68 degrees 19 degrees These results sow that the side, which retains the most heat radiation energy, is the shiny white side and then the shiny black and then the matt black. This is why we will be using a shiny white polystyrene cup for the actual and preliminary work. Factors which affect different types of heat flow are, with radiation and conduction the type of material it is trying to transfer its heat energy to. This is because they all have different atom arrangements which affects how well they are able to conduct heat energy, e. g. Metal conduct heat better than stone does. Convection can be affected by what types of material it is convecting through . e. g. Oil would convect differently with water. Different gases would also be differenyt and affect the rate of convection. To help make the table clearer and to finalise the actual test I decided to do some preliminary testing which would help me to understand things like if the cup I am using would work better with or without a lid. Equipment used Polstyrene cup,thermometer, card board lid ( second test only ),kettle , stop watch and measuring cylinder. I measured out 100cm cubed of water , made sure that the thermometer was at the correct temperature therefore making sure that the water was. I used a polystyrene cup with out a lid on in my first test and with a lid on in my second, this was to see if I would get better results with or without it. These are the rwaults which I gained. Heat energy lost Heat energy lost With out lid With out lid With lid With lid 70 degrees and above 25. 5 degrees. Average 21. 33 degrees 18. 0 degrees Average 18. 0 degrees 16. 0 degrees 18. 5 degrees 22. 5 degrees 17. 5 degrees 50 degrees and above 8. 0 degrees Average 17. 25 degrees 10. 0 degrees Average 10. 5 degrees 10 degrees 10. 0 degrees 16. 5 degrees 11 degrees 30 degrees and above 8. 0 degrees Average 7. 33 degrees 5. 5 degrees Average 5. 5 degrees 11. 0 degrees 5. 0 degrees 3. 0 degrees 6. 0 degrees From this chart you can see that without the cardboard lid the results atre very random and this means that the heat is able to fluctuate greatly as you can tell from my results. I have therefore decided to have a lid on the cup as the results with the lid on seem a lot more constant and the heat isnt allowed to fluctuate as much. I suspect that I will find that heat energy will be lost mostly conductivity and convection rather than radiation as I have tried to reduce the effects of this to as little as possible . For my acual test I will change the integers at which heat is lost from e. g. instead of going 70 degrees and above to 50 degrees and above I will try to have exactly 70 degrees and exactly 65degrees, I will then be able to draw more accurate results from this.

Comparing the Unique Characters of 1984, Animal Farm and Burmese Days :: compare and contrast essay examples

The Unique Characters of 1984 and Animal Farm and Burmese Days      Ã‚  Ã‚  Ã‚   George Orwell, an alias of Eric Arthur Blair, is know for the books 1984 and Animal Farm. In both of these, as well as in most of his others, he seems to delight in using vivid and wholly believable characters, easily believable because of their obvious and tragic faults. Another similarity seems to be the consistent use of irony, a stylistic choice which plays big in Burmese Days and in several other works. Also, Blair enjoyed placing his characters in situations and settings that were out-of-the- ordinary, constantly reversing or switching roles. It is a mark of talent that he is able to use all of these so effectively, making us believe the unbelievable and accept the incredible at the same time that he makes us emphasize with the characters and see similarities between them and ourselves, long after they were written.    Blair's penchant for extremely well-done characters, entirely believable and understandable, is shown by both his major works as well as his lesser known first fiction piece, Burmese Days. In 1984, the main focus of the story is Winston Smith, an Normal Party member living in the year 1984 except for his dislike of all that the Party stands for and distrust of its message. Of course, these qualities, questioning of authority and subtle disloyalty to unfair persecutors, are considered good by the public today. In the book however, these abilities were destroyed, smothered, and obliterated through careful means, and anyone having them was branded insane, dangerous, and antisocial. Thus, the author creates an immediate bond between us and the suffering main character by showing a little person vs. Big Brother (Blair being the first person to use the word). "The Thought Police would get him just the same. He had committed, even if he had never set pen to paper, the essential crime that c ontained all others in itself. Thoughtcrime, they called it. Thoughtcrime could not be concealed forever. You might dodge successfully for a while, even for years, but sooner or later they ware bound to get you" (Orwell 166).    This passage, particularly the final sentence, slowly builds up the reader's bond with Winston. He is being persecuted for being innocent, for thinking, and this persecution makes him seem all the more likable. The final, and perhaps most interesting part of Winston's development in 1984 is near the end of the novel.

Socratic Seminar Questions (Medea)

Socratic Seminar Questions 1. Do you think Medea should’ve let the children live? If so, who do you think she would’ve chosen and why? If not, why do you think Medea killed the children? I think it was right for Medea to kill the children. The children are a â€Å"product† during Medea and Jason’s relationship. Since Medea feels like Jason betrayed and tainted their relationship, she feels like letting the children not live is like destroying every last remnant of their relationship.She also feels that killing the children would punish Jason and as a mother, she doesn’t want anyone else to harm her own children, so she kills them as a sacrifice. Personally, it was a dour scene of killing the children, but it had a hidden reason into killing the children. 2. What are some major complaints Medea pleas about the treatment of women? Do you think women around the world are still facing these problems? Some of the major complaints Medea pleas about are th at women cannot reject marriage because of the over dominance of men that women don’t have the power to reject or deny marriage.I believe not only Greece, but other countries around the whole world face the over dominance of men over women. Another complaint Medea states is how women are â€Å"bought and sold† by men. Women weren’t slaves back in Greece but Medea emphasizes the point that women are treated like property, being bought and sold. In the present world, there are very few or not even any countries that sell women but are treated like slaves, having limited rights than men. Lastly, she points out women are the â€Å"most unfortunate creatures†. I think the hidden message Euripides is explaining is the deplorable state of females in Greece.I think that there are still countries worldwide, facing the same situations Medea points out to the readers. In addition, I think Euripides wants readers to sympathize the state of women and how they’r e treated. 3. What do you think is the difference between justice and revenge? Did Medea achieve justice or revenge? Why? There is a key difference between the definition of justice and revenge. Justice I think brings termination, an end to something, while revenge results in personal satisfaction and pleasure. Another key difference between both is that justice is what should be done while revenge is what you believe should be done.To sum everything up, justice is selfless and revenge is selfish. I think Medea achieved more of revenge because it was her personal satisfaction and plotting out, punishing Jason for his wrongdoings. In addition, her crave for revenge adulterates her life and her desire for revenge makes her a merciless character. 4. What ways does Medea bring her banishment on herself? There are many signs of how Medea creates banishment for herself. She made herself an exile out of love, leaving her land and killing her father and brother to help Jason in his quest fo r the Golden Fleece. Ironically thought, his betrayal leads her into banishment once more.During many scenes in the play, Medea expresses deep anguish as making herself an exile. She seems especially remorseful about leaving home and killing her father. This distance from Medea to her father is probably the worst feeling of exile she has to withstand. 5. If all people are created equal, then why do you think men have more authority than women according to Medea? One reason I think men would want more authority than women is men want to feel powerful themselves and they want a feel of playing a crucial role to society or a matriarch in a family by obtaining power.Another reason men have more authority than women is how much pressure they can take. Yes, women are smart and have intelligence, but the main problem is that women can’t take as much criticism or types of pressure as men can. That could be why men are mostly leaders of countries, they can take more pressure from soci ety or media than women can. Lastly, I think men have more authority than women is because men are more recognized in creativity. Microsoft, Apple, Google and YouTube are examples of technological inventions by men. Men feel more recognized into their creativity.

Demography, Epidemiology, Health Essay

Public health is the science of preventing disease, prolonging life and promoting health through the organised efforts of society. Beryl S, 2007, BTEC National health and Social Care Book 2, page 116. Public health helps to improve peoples health and well-being in all communities across the nation. This is through improving quality in life, which has prolonged Britains life expectancy, decreased infant and child mortality and reduction of many diseases. There are seven main key aspects to public health in the UK today: monitoring health status; Changes in health patterns are monitored and tracked to detect if there may be any potential problems for the population. Data is collected from different health professionals to monitor the health status of the community, which are then used to inform policy and the planning of health services. Identifying health needs; This is done through gathering data to find out the populations illness trends, the statistics can then be used to improve health and then the area concerned can be highlighted and effects of that illness can be prevented or reduced. Other factors are also included, such as age, genetics, environment, lifestyle and education, as they may relate to the patterns concerning illnesses and diseases. Developing programmes to reduce risk/screen for disease early on; New programmes are introduced to attempt to reduce ill health that can help to identify certain people who may be at risk of certain illnesses or conditions. Once identified the programmes help the preventation of the condition continuing, For example if someone has been told they may develop diabetes due to their weight, then they would be refered to someone who could help lower their weight and therefore lower the risk of developing diabetes.

Evidence-Based Practice Project Example

Evidence Evidence Evidence-Based Practice Project al Affiliation Evidence-Based Practice Project It is important to incorporate a theory of model related to change when implementing practice changes because theories offer assumptions or blueprint of the manner in which a change can be implemented. A theory provides a coherent framework to make sense of why the change is required. One should have a clear reason for implementing a change initiative. A theory provides an explanation for this reason and helps provide a framework on how such a change can be implemented. It also allows those managing the change process to articulate the underlying assumptions about change and be able to test and measure such assumptions on change. Theory also helps by providing a strategic map that shows the current situation, determining the starting point of a change, where the change process should be initiated and where to end the change process (Burke, 2013).The benefit of incorporating a change model does not outweigh the time and effort it took to include it. The time, effort and benefit of including a change model are all important because without one of these aspects, a change model becomes useless in a change process. A change theory or model must be well thought out. This means that time and effort must be used to ensure that the change model fits within the change required. This will ensure that the change model can guide the change through to completion and that the change can yield the results for which it was intended. Therefore, this means that the effort, time and the benefit of the change model equally important (Basford & Slevin, 2003).ReferencesBasford, L. & Slevin, O. (2003). Theory and Practice of Nursing: An Integrated Approach to Caring Practice. New York: Nelson ThornesBurke, W. W. (2013). Organization change: Theory and practice. Sage Publications.

Evaluating the Effects of Regulatory Agencies on the LIMS ( Laboratory Essay - 1

Evaluating the Effects of Regulatory Agencies on the LIMS ( Laboratory Information Management System ) - Essay Example ongoing mechanism to monitor, assess, and, when indicated, correct problems identified in the general laboratory systems requirements specified in all relevant Paragraphs within CMS Regulations Part 493 Subpart K that apply to the laboratory in question. This means that the LIMS implementation will need to provide a Quality Assessment (QA) module that provides functions, that must, when requested by the CMS and other U.S. Federal Medical Regulators, provide Verifiable Demonstrable Evidence (VDS) in the following areas. An ongoing review process that encompasses all facets of the laboratory’s technical and non-technical functions and all locations/sites where testing is performed. QA also extends to the laboratory’s interactions with responsibilities to patients, physicians, and other laboratories ordering tests, and the other non-laboratory areas or departments of the facility of which it is a part. When the laboratory discovers an error or identifies a potential problem, LIMS must allow strong remedial actions to be taken to correct the situation. This correction process must involve identification and resolution of the problem, and development of policies that will prevent recurrence. Policies for preventing problems that have been identified must be formally recorded as well as communicated to the laboratory personnel and other staff, clients, etc., as appropriate. The LIMS implementation should (that is to say, good practice, but not a legal requirement) provide a facility to monitor the type and number of complaints received by the laboratory such as, for example, a particular client continuously complaining about the laboratory’s failure to promptly respond to STAT test requests. The laboratory must possess and be able to demonstrate to CMS etc, inspectors A facility to review of the effectiveness of corrective actions taken to resolve problems, revision of policies

CourseWork (the dead line is on the 26 of march ) i will be able to

(the dead line is on the 26 of march ) i will be able to give more time if needed - Coursework Example 2009). In the context of business planning, the factors associated with cost and benefits are critical and must be understood. Similarly, cost benefit analysis is also critical in the context of projects associated with GIS engineering and management. Scenarios This report is associated with cost / benefit analysis for two scenarios. The first scenario includes an interest rate of 4%, which indicates it as a best-case scenario, while the other scenario is the worst-case scenario with the interest rate of 10%. Specification for Costing Cost of five workstations with minimum configuration of Quad-core processor, 2GB RAM and 250GB Hard Disk is illustrated below: Cost of single Workstation * 5 = ? 1300 * 5 = ?6500 Cost of upgrades in Year 3 and 6 = 2 *?650 * 5 = 2 * ?3000 = ?6000 Licensing Cost for GIS Software Cost for Year 1,2,4,6 = ?10000, Cost for Year 3, 5, 7 = ?3000 Data Purchasing Cost Total cost of Map Purchase = ?19500 Employment Cost Total costs of Salaries increasing at 3.5% p er annum are as follows: Year 1 = ?195,000, Year 2 = ?202,000, Year 3 = ?209,000, Year 4 = ?216,000, Year 5 = ?224,000, Year 6 = ?231,000 and for Year 7 = ?239,000 Conversion and Miscellaneous Cost Conversion Cost (1 time) = ?5000 (Given) Miscellaneous Cost = ?3000 (Given) Benefit Total Savings in the context of employments as salaries are as follows: Year 1 = ?195,000, Year 2 = ?202, 000, Year 3 = ?209,000, Year 4 = ?216,000, Year 5 = ?224,000, Year 6 = ?231,000, Year 7 = ?239,000. Efficiency Savings (Increasing at the rate of 4.5%) For Year 1 = ?15000, Year 2 = ?15675, Year 3 = ?16380, Year 4 = ?17117, Year 5 = ?17887, Year 6 = ?18691 and Year 7 = ?19532. Scenario 1 ( Interest Rate 4%) The first scenario demonstrates the implementation of a GIS project with the interest rate of 4% which is considered as lowest when compared to normal. The interest rate of 4% (0.04), Fig 1.1 illustrates similarity for both cost and benefits in the graph over the period of 7 years , with the cost be nefit ratio of 1. Moreover, the net present value is also demonstrating 1st and 4th year of implementation is negative for the projects.In comparision with both the cases, consequent years 2 and 5 are highlighting recovery and constant positivity for the net present value. Figures for implemtation of the net present value over 7 years are calcuated as 16.54. Moreover, the profitibality month starts from the 2nd year till the 5th year with implementation outweigh is cost that conludes to benefit. Both the implementation present value and the net present value at the end of 5 years are positive. For this reason, productivity does not requires icrement as the net present value is already shoiwng healthy progress at the end of year 7. Scenario 2 (Interest Rate 10%) This is the scond scenario in which the worst case has been considered. The interest rate allocated for the worst scenario is at 10% (0.1), which is considerably high as compared to normal interest rates for worst case scenar ios. In figure 1.2, the demonstration of the graph is reflecting cost and benefit worms are close and following in the same direction, while it is also showing that cost overruns arises in 1st and 4th years . Whereas, the reaminder for cost and benefits