Resistance of a wire coursework Essay Example for Free

Resistance of a wire coursework Essay Then we measured the first measurement of resistance at 100a c, increasing the temperature too over 300a c. Taking s measurement at every 10a c. At one point in the investigation the heat started to melt the plastic coating around the wires, we quickly noticed this was a problem so we attached the wire to a clamp, this was to stop the bare wire touching the metal sand tray, as this would cause the resistance in the metal of the tray to be measured as well, this would cause the ammeter to short circuit. After collecting results, we plotted a scatter graph, drawing a line of best fit, we also indicated any anomalies. I took the photo myself Safety When doing our investigation we had to take into consideration the safety aspect, this is because we were using very high temperatures up to 300a c. We used safety goggles to protect our eyes from the heat, and in case of spitting from the water in the preliminary work, to the sand in the main experiment. We also kept or distance from the experiment to protect from heat and spitting just like the goggles. After we’d finished we left the equipment to cool before the technicians to clear away, with a safety sign. We also used heatproof mats so the worktop was protected, as well as this it protected glass or porcelain pieces of equipment from thermo-shock (high to low temperature, very quickly) http://www. amazing1. com/Graphics/oly-lsg-4-1. jpg Obtaining Evidence Before we began our real experiment we carried out preliminary work to find out what was the best was to test the resistance of a wire, or how we could. So we tried using temperature as something that would either increase of decrease the resistance. In our preliminary work we found that the resistance started to change when the temperature exceeded 90a c. However we found that this was a problem because we were using water to heat the coiled wire. Waters boiling point is 100a c so we had to discard the idea and change it. So we used a sand tray as sand has a much higher melting point then water. We also repeated many of the experiments as well as the preliminary work to find out whether or not this was just a case of human error, and that we didn’t need to change the experiment. Also in the temperature experiment we used Copper at first; we then used Nichrome as this has a much higher resistance so the results would not be as high. In my results we identified outliers, and also calculated a mean, or the average for all of the results for the change in length of wire/thickness. In the first experiments for length of wire we didn’t specify a length of time that we were going to measure resistance on the wire for, we just laid the wire on the other wire, however this would have heated the wire giving us less accurate results. I decided to change this by only touching the wire for 2 seconds at every 10cm, allowing enough time to obtain results, but not long enough for the wire to be heated. http://reprap. org/mediawiki/images/9/99/Blunt_step10. jpg Patterns In Results In our results there were many patterns shown, for example as the length of wire increased in the length/ width experiment so did the Resistance of the wire. As well as this as the temperature increased further and further, the resistance of the wire increased as well. These patterns both show that our predictions were correct. However in both of these experiments’ there were a few anomalies. For example lengths 130cm on 28 gauge wire, and 150cm on 36 gauge wire. In the temperature test, temp 140a c and 250a c were anomalies. Conclusion My results show that as the length and the thickness of the wire increased, so did the resistance, which supports what my prediction. This is shown because when the length of wire was 40cm long (28 gauge) the resistance average was 2. 9 ohms, at 100cm the resistance average was 5. 4 ohms and finally at 160cm the resistance average was 7. 9 ohms. This is then supported by the 36 gauge wire, at 40cm the resistance was 9. 2 ohms, at 100cm the resistance was 19. 2 ohms and at 160cm the resistance was 27. 7. This clearly shows that there is an increase in resistance when there is an increase in length. In the temperature experiment my results show that as the temperature increased so did the resistance of the wire, however there were a few anomalies in the experiment. At 100a c the resistance was 1. 5, as the temperature increased to 220a c the resistance was 3, however at 240a c the resistance was 2. 9, this shows an anomaly in the results. After the temperature increase again so did the resistance e.g. at 300a c the resistance was 3. 6 Overall I think that my conclusion supports what I wrote in my prediction. This is because I predicted that as the length/temperature was increased so would the resistance of the wire. My experiments were a success. However if I were to do this again I would repeat each of the experiments more times to eradicate any anomalies that may have occurred through the investigation. Evaluation I think that my investigation went well, this is because my results that I have gathered support what i wrote in my prediction. However they were a few problems in the experiment for example, when we increased the temperature one of the connecting wire began to melt, this was due to the wire been too close to the Bunsen’s flame. This made our experiment short circuit, meaning we had to start the investigation from scratch. Also in our length experiment the wire began to heat higher than we wanted because of the current in the circuit, this could have made our results less accurate. Although the wire may have heated more than we wanted I still believe that the results were very accurate, as we only had 4 outliers in all of our results. I think that the level of accuracy in my results is very high because we repeated each one of the experiments more than once. To increase the level of accuracy in the results I think that if I were to repeat the investigation I would repeat them more than just once; this allows you to eliminate any anomalies that occurred. There were a few anomalies in my experiment these were: 1. 130cm on 28 gauge wire 2. 150cm on 36 gauge wire 3. In the temperature test, temp 140a c and 250a c were anomalies I think the anomalies for the length experiment will have occurred because of human error e. g. not reading the results correctly, or touching the two wires together for too much time, this would cause the wire to heat up, causing a false reading of the resistance. In the temperature experiment, I think the anomalies may have also sprung from the connecting wire becoming too hot, meaning that the resistance would not have been the right reading. As well as this, if the connecting wires touched the side of the sand tray, this would cause the reading to be lower so this may have occurred at some point during the experiment. In the investigation we repeated some of the experiments more than once; this allowed me to make my results more reliable. Also it allowed us to eliminate anomalies. I think that I should have taken more results because I still have anomalies in my results. However I did check if my results were correct by repeating each of the experiments more than once. When I did repeat the experiments the results I got were identical apart from the anomalies which some of them did not occur more than once. This proves that by repeating them it reduced the number of mistakes made. I also think that the range of results I collected was sufficient to give me answers for my prediction and conclusion. If I had to use my results to as evidence to back up my conclusion then I would be very confident. This is because my evidence supported my prediction, and all of the evidence was clear and easy to show in many different ways, whether in a table, bar/line graph or in any other form of data representation. I believe that I could use my results as evidence because it clear, concise and is very easy to understand. Thing that I could do to improve my investigation would be to make sure that there was only one variable (one thing I was changing) and to ensure that all aspects of human error were eliminated before starting the experiments. One further experiment that I would do would be to use a wider range of material for the coil of wire to give me more evidence, such as how the material changes the resistance. 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Chemical Equilibrium And Ph Biology Essay

Chemical Equilibrium And Ph Biology Essay In a chemical process, chemical is a state in which cocentration of reactants and the concentration of products does not change overtime i.e when the forward reaction proceeds at the same rate as backward reaction and it exists in dynamic equilibrium. The laws of chemical equilibrium define the direction in which a chemical reaction will proceed, as well as the quantities of reactants and products that will remain after the reaction comes to an end. An understanding of chemical equilibrium and how it can manipulated is essential for anyone involved in Chemistry and its applications. The fundamental equation provides the basis for understanding chemical equilibrium. pH is Quantitative measure of stength of acidity and alkalinity of solution. When the concentration of H+ and OH- ions in aqueous solution are frequently very small numbers and there fore inconvenient to work with, Soren Sorensen in 1909 proposed a more practical measure called pH. It is defined as the negative of the hydrogen ion concentration. pH= -log[H+]. Acidic and basic are two extremes that describe a chemical property chemicals. Mixing acids and bases can cancel out or neutralize their extreme effects. A substance that is neither acidic nor basic is neutral. The pH scale measures how acidic or basic a substance is. The pH ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 is basic. HISTORY:- The concept of chemical equilibrium develop after Berthoket (1803) found that some chemical are reversible. For any reaction to be equilibrium, rate of forward reaction is equal rate of backward reaction, so at equilibrium nearly all the reactant are used up for to left it hardly any product formed from reactant. In 1864 Guldberg and waage showed experimentally that in chemical reactions an equillibrium is reached that can be approached from either direction. They were apparently the first to realize that there is a mathematical relation between the concentration of reactants and products at equillibrium. In 1877 van`t hoff suggested that in the equillibrium expressions the concentrationof each reactant should appear to the first power, corresponding with the stochiometric numbers in the balanced chemical equation. The concept of p[H] was first introduced by Soren Peder Lauritz Sorensen at the carlsberg laboratory in 1909 and revised to the modern pH in 1924 after it became apparent that electromotive force in cells depended on activity rather than concentration of hydrogen ions. TYPES OF EQUILLIBRIUM:- Physical equillibrium:- Equillibrium between two phases of the same substance is called Physical equillibrium because the changes that occur are physical processes. e.g; The vaporization of water in a closed container at a given temperature is an example of physical equilibrium. In this instance the number of H2O molecules leaving and the number of returning to the liquid phase are equal. H2O(l) = H2O(g) The study of physical equilibrium Yields useful information such as the equilibrium vapour pressure. If a reaction is:- aA + bB = cC + dD where a, b, c and d are the stoichiometric coefficients for the reacting species A, B, C , and D. For the reaction at a particular temperature K = (C)C (D)d (A)a (B)b where K is the equilibrium constant. This equation was formulated by cato Guldberg and Petr Wage in 1864. It is the mathematical expressions of their law of mass of action, which holds that for a reversible reaction at equilibrium and a constant temperature, a certain ratio of reactant and product concentration has a constant value K. and the equilibrium constant does depend on the volume, concentration, catalyst, pressure e.t.c. It only depends upon temperature. The equilibrium constant ,then, is defined by a quotient, the numerator of which is obtained by multiplying together the equilibrium concentration of the products, each raised to a power equal to its stoichiometric coefficient in the balanced equation denoted by Q. If Q If Q > K then reaction takes backward reaction. If Q = K then reaction is at equilibrium state. The magnitude of equilibrium constant tells whether the reaction favors the products or reactant. If K >> 1 , the equilibrium will lie to the right and favours the products. If K Homogeneous equillibrium:- The term homogeneous equilibrium applies to reactions in which all reacting species are in the same phase. E.g; An example of homogenous gas phase equilibrium is the dissociation of N2O4. N2O4 (g) = N2O4 (g) aA(g) = bB(g) then, Kc = (B)b/(A)a the concentrations of reactants and the products in gaseous reaction can also be expressed in terms of their partial pressures. At constant temperature the pressure P of gas is directly related to the concentrations in mol/ L of the gas. i.e; P =(n/V)RT. And the expressions can be given by Kp = PbB/PaA where Pa and P b are the partial pressure of A and B. After substiuting these relations in to the expressions, we get [Kp=Kc(RT)b-a] If b-a is equal to zero, then reaction is at equilibrium. If b-a > 0 , then backward reaction is favourable. If b-a Heterogeneous equilibrium:- A heterogeneous equilibrium results from a reversible reaction and products that are in different phases. e.g; when calcium carbonate is heated in a closed vessel, the following equilibrium is attained. CaCO3(S = CaO(S) + CO2 If a reaction aA(S) + bB(s) = cC(s) + dD(g), the concentration of a solid , like it`s density , is an intensive property and does not depend on how much of the substance is present. In thermodynamics , the activity of pure solid us 1. Thus yhe concentration terms for A,B and C are unity. So, Kc = [D]d Similarly , the activity of a pure liquid is also 1. Thus if a reactant or a product is a liquid, we can`t omit in the equilibrium constant expressions. Also we can express the equilibrium constant as Kp = P(D)d . Factor Affecting Equilibrium:- Chemical equilibrium represents a balance between forward and reverse reactions. In most cases, this balance is quit delicate. Change in experimental condition may disturb the balance and shift the equilibrium position so that variable can be controlled experimentally are concentration, pressure, volume and temperature. Effect of change of temperature:- A change in concentration, pressure, or volume may alter the equilibrium position , that is, the relative amounts of reactants and products but it dose not change the value of equilibrium constant .Only a change in temperature can alter the equilibrium constant. At equilibrium at a certain temperature, the heat effect is zero because there is no net reaction .If we treat heat as though it were a chemical reagent, than a rise in temperature adds heat to the system and a drop in a temperature removes heat from the system .As with a change in any other parameter ,(concentration, pressure, or volume), the system shift to reduce the effect of the change. Therefore, a temperature increase favours the endothermic direction (from left to right of the equilibrium equation ) and a temperature decrease favours the exothermic direction. In summary, a temperature increase favours an exothermic direction and a temperature decrease favours the exothermic reaction. The effect of changing temperature on an equilibrium constant is given by the van t Hoff equation d ln K/ d T = H/RT2 Thus, for exothermic reactions, (ΆH is negative) K decreases with an increase in temperature, but, for endothermic reactions, (ΆH is positive) K increases with an increase temperature. An alternative formulation is d ln K/ d(1/T) = H/R At first sight this appears to offer a means of obtaining the standard molar enthalpy of the reaction by studying the variation of K with temperature. Effect of change of pressure and volume:- Change in pressure ordinarily do not effect the concentration of the reacting species in condensed phases(say, in an aqueous solution) because liquids and solids are virtually in compressible. On the other hand, concentration of gases are greatly affected by change in pressure. The greater the pressure, the smaller the volume, and vice versa. Note, too, that the term (n/V) is the concentration of the gas in mol/L, and it varies directly with pressure. In general an increase in pressure (decrease in volume) favours the net reaction that decreases the total numbers of moles of gases (the reverse reaction, in this case), and a decrease in pressure (increase in volume) favours the net reaction that increases the total numbers of moles of gases(here the forward reaction).For reaction in which there is no change in the numbers of moles of gases, a pressure (or volume)change has no effect on the position of equilibrium. Effect of catalyst at equilibrium :- Catalyst does not affect the the equilibrium constant. And it can not shift the equilibrium positon. Catalyst only enhance the rate of reaction to reach the equilibrium position. Effect of concentration of reactant:- Effect of concentration change the position of equilibrium. If we increase the concentration of the products shifts the equilibrium to left, and decreasing the concentration of the product shifts the equilibrium to right. These results are just predicted by Le Chatelier principle. Le chatelier principle:- If an external stress is applied to a system at equilibrium, the system adjusts in such a way that the stress is partially off set as the system reaches a new equilibrium position. pH -A MEASURE OF ACIDITY. Because the concentrations of H+ and OH- in aqueous solution are frequently very small numbers and therefore inconvenient to work with, Soren Sorensen in 1909 proposed a more practical measure called pH. The pH of a solution is defined as the negative logarithm of hydrogen ion concentration in (mol/L): pH = -log [H3O+] or pH = -log [H+] The negative logarithm gives us a positive number for Ph, which otherwise would be negative due to small value of [H+]. Furthermore the term [H+] permits only to the numerical part of the expression for hydrogen ion concentration, for we cant take the logarithm of units. Thus, like the equilibrium constant, the pH of a solution is a dimensionless quantity. Acidic solutions: pH is less than 7.00. Basic solutions: pH is more than 7.00. Neutral solutions: pH is equal to 7.00. Notice that pH increases as [H+] decreases. For real solutions, activity usually differs from concentrations, sometimes appreciably. Knowing the solute concentration, there are reliable ways based on thermodynamics for estimating its activity, but the details are beyond the scope of text. Keep in mind, therefore, that the measured pH of a solution is usually mot same as that , because the concentration of the H+ ion in molarity is not numerically equal to its activity value. Although we will continue to use concentration in our discussion, it is important to know that this approach will give us only an approximation Of the chemical process that actually take place in solution phase. In the laboratory, pH of a solution is measured with a pH meter. List of some pH of a number of common fluid, the pH of a body fluid varies greatly, depending on location and function. The low pH (high acidity) of gastric juices facilitates digestion whereas a higher pH of blood is necessary for transport of oxygen. APPLICATION OF pH:- A pH indicator is substances that change colour around a particular pH. It is weak acid or weak base and the colour changes occur around 1pH unit either side of its acid dissociatian constant. For.ex. Naturaly occuring indicator litmus is red in acid solution and blue in alkaline solution. REFRENCES:- P.W. Atkins, Physical Chemistry, third edition, Oxford University Press, 1985. F.van Zeggeren and S.N Steery,the computation of chemical equilibrium,1920. W.R.Smith and R.W.Mission,chemical equilibrium Analysis. RAYMOND CHANG, Williams college.

Effects of Alzheimers and Risk Factors

Effects of Alzheimers and Risk Factors Alzheimers disease (AD) is a chronic degenerative disease process that is currently affecting upwards of 5.3 million people in the United States (Alzheimers Association, 2010). This disease can cause physical and mental hardships on not only the client but on caregivers alike. In the following paper we will discuss the disease process including causes and risk factors, the effects on the clients activities of daily living, the challenges with social, family, spiritual and cultural life, disease prevention and treatment along with long term management, and lastly, nursing care and interventions that can facilitate the life of a client with Alzheimers. Because the disease results in cognitive impairment, psychological effects will be referred to throughout the paper. In order to grasp the needs of a client with Alzheimers disease, we must first understand the disease process itself. According to Mosbys Medical Dictionary Alzheimers disease is defined as, a condition characterized by progressive mental deterioration (2009). As individuals age numerous variations in the brain occur. Some of these changes include a decrease in brain size, deterioration of the cerebral cortex, and a loss of neurons that is dramatically hastened in the patient with AD. A decline in production of acetylcholine, norepinephrine, dopamine and serotonin is common in patients with this disease (Ignatavicius Workman, 2010, p. 970). These things can subsequently cause brain cell death which leads to rapid memory loss (Mayo Clinic, 2011). There is inconclusive evidence on where the impairment occurs when processing information in the brain. A recent journal article, published in Brain Imaging and Behavior, comments on this ongoing mystery and writes, [It is unknown] whether t he memory impairment results from failure of encoding, consolidation or the retrieval mechanism (Blacker, OKeefe, OBrien, Pihlajamaki, Sperling, 2011. p. 37). The etiology of AD is unfortunately still unidentified. It is known, however, that people with this disease actually do have a smaller amount of living brain cells than a person without the disease. Connections in the brain are also diminished and cannot transmit as easily (Mayo Clinic, 2011). Professionals have speculated many risk factors that they think contribute to a diagnosis of Alzheimers disease. The two most important factors include an age over 65, and being of the female gender. However, genetic factors, chemical imbalances, being of an African American descent, lower educational level, environmental agents (such as viruses like herpes zoster, herpes simplex, exposure to zinc and copper), and immunological changes are all also potential causes (Ignatavicius Workman, 2010, p. 970). AD is easily identifiable by its signs and symptoms which manifest in different stages. There are three stages that occur. The first stage is the early onset of Alzheimers in which patients will have simple forgetfulness and often will deny that there is a problem, resulting in seclusion. Stage two is progressively worse; the patient will soon become disoriented to time, place and events. In this stage incontinence as well as speech and language become problematic for the patient. The patient begins to become progressively more embarrassed and agitated. In the final stage, or stage three, the patient is no longer able to care for him or herself and is often unable to verbalize needs or able get out of bed without assistance (Ignatavicius Workman, 2009, p. 971-972). This stage of Alzheimers significantly affects patients activities of daily living. Simple tasks such as brushing teeth, combing hair and changing clothes are impossible for the patient to do. Because of their self-care d eficit, the patients family may have to provide personal cares along with ADLs and psychological reassurance. This can cause both emotional and financial stress for the family. Forgetting peoples names or faces can have a debilitating effect on a patients social life. Patients will often have little to no social etiquette demonstrated by screaming obscenities, playing with their own fecal matter and other aggressive behaviors as an example. Sleep patterns are often disturbed and patients usually take frequent naps during the day and are active at night (sundowners syndrome). This disrupts the patient and his or her familys daily routine (Ignatavicius Workman, 2009, p. 973). This type of diagnosis could likely affect their cultural beliefs as well. For example, cultures, such as Hispanic, strongly believe in elder respect and taking care of the elderly. Extended family will often live under one roof. For these cultures a patient with AD may become more of a burden to the whole family rather than a culture that might accept assistance from a nursing home or assisted living center. Spiritual life can also be affected. The client may no longer be able to go to religious services due to their potential social inappropriateness or because the family may have to closely accompany them. The client may forget, or find it unnecessary, to partake in practices that they previously carried out. This may make the client and family feel very frustrated. Whereas there is no known way to prevent AD, there are many interventions to prevent the complications associated with the disease. Since memory impairment is the main symptom of Alzheimers the client is expected to be very confused and disoriented. The nurse should be prepared to answer all the patients questions truthfully and keep him or her oriented by possibly providing single date calendars and keeping them on a non-changing routine. These things will help them to become more comfortable in their environment and be familiar with what is going to happen (Ignatavicius Workman, 2010, p. 975). Validation therapy is one way that health care providers can achieve both of these goals. This therapy entails the staff member recognizing the patients feelings and concerns without lying to them or dismissing the fear. For example if the client has already eaten breakfast, and returns to the dining hall expecting a second breakfast, an appropriate response from the nurse would be something along the lines of, I notice you are still hungry, I will get you another piece of toast. It would be inappropriate for the nurse to tell the client that he or she has already eaten because this may cause the client to become very agitated. The response does not dispute the client, but it also does not support the idea that he or she has not eaten breakfast (Ignatavicius Workman, 2010, p. 975). Caregivers should also promote self care management. Sustaining independence in the clients ADLs is very important for the client with AD and can sometimes help to prolong self physical management. The nurse will also need to instigate bowel and bladder programs. It is important that these clients are toileted every two hours and as needed. Incontinence can be very embarrassing for the client and anything the staff can do to prevent this is encouraged. Staff should keep the client well hydrated and may need to remind the client to drink often. If on a 2 hour and PRN schedule the client is l ess likely to acquire an injury by trying to get up and go to the bathroom on their own. Next, it may be helpful to regularly take the client on walks and to provide them with something to do. Be sure to minimize stimulation and ensure safety. As for long term management of the disease it is likely that the client will eventually need to be placed in a long term care setting such as assisted living. Interestingly enough, in a journal article from The International Journal of Geriatric Psychiatry it states that recent evidence suggests that behavioral interventions and techniques are more effective than any other means of care including pharmacological approaches. They affirm that staff should be well trained to deal with these clients and that they play a huge role in the clients overall disposition and how he or she will cope with managing their disease (Ayalon, Arean, Bornfeld, Beard, 2009, p. 118-123). For some psychological management, caregivers should promote memory training and assist with facial recognition. It is important that they use redirection techniques and promote effective communication that has been tailored to that client specifically (Ignatavicius Workman, 2010, p. 974-978). Alzheimers disease is very complex and has many components to successful nursing interventions, but when followed can lead to great results. Two creative nursing interventions that we were able to come up with are (Pts. with AD should be involved in social interaction to decrease feelings of boredom, anxiety and decreased self-esteem. A possible intervention the nurse can use to help a pt. with AD is to encouraging the pt. to sing with others and help pick out music; this can possibly improve the pts. mood and behavior. It is believed that listening to enjoyable music during routine activities can decrease agitated behavior. Fun activities such as playing musical instruments ( triangle, maraca or even a toy hand drum) can be easy for the pt. to do and also entertaining. ) I am not sure what to do about the other one but with my grandpa we used to put a picture on his door to help him remember what room was his, but that kind of similar to what we talked about above. By 2050 it is expected that the prevalence of Alzheimers disease will increase to 14 million people (Ignatavicius Workman, 2010, p. 970). As healthcare providers it is important that we educate ourselves on this disease because it is nearly inevitable for anyone of us to avoid caring for a client diagnosed with it. In this paper we discussed the disease process including causes and risk factors, the effects on the clients activities of daily living, the challenges with social, family, spiritual and cultural life, disease prevention and treatment along with long term management, and lastly, nursing care and interventions that can facilitate the life of a client with Alzheimers disease.

Thomas Moran :: essays research papers

  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  One of the most well known parks in the United State is Yellowstone. One of the most well-known landscape artists is Thomas Moran. What does this place and person have in common? Well, if it weren't for Thomas Moran Yellowstone would not be a National Park. Thomas Moran's art was greatly influenced by the nature of the west in the early romantic era.   Ã‚  Ã‚  Ã‚  Ã‚  Born in Bolton, Lancashire, England in 1837, Thomas was taken to the United States at the age of 7. (Ency. Bio. Vol. 11). He was educated in Philadelphia public schools for his elementary years and then indentured to a wood engraving firm in 1853-1856. (Am.Nat.Bio.Vol 15). He had three brothers who were artist, but he learned to paint from his brother Edward Moran. He did do some watercolors during his apprentictionship and in 1856, he painted his first oil painting titled, Among the Ruins There He Lingered. (Vol.11). Moran still working closely with his brother became an informer student of Philadelphia marine artist James Hamilton. Hamilton may have introduced him to the work of J.M.W, turner and a belief in close study of nature in his foundation of panting. (Vol.15) Moran exhibited landscapes at the Pennsylvania Academy of the fine arts for the first time in 1856 and then later elected academician in 1861. He continued to exhibit there through 1905. (Vol.15). 1862 Thomas married Mary Nimmo who had always thought to be her husbands student. (Vol.15). The beginning of his life had just started and didn't know that he would accomplish so many feats with his artwork of nature.   Ã‚  Ã‚  Ã‚  Ã‚  Thomas would be in the category of romantic art for the theme of his artwork. He has based it on the beauty of nature and the fact that most of his major works were done in the period that romanticism took place, most of the 19th century and the beginning of the 20th century. Thomas Moran had attended the Hudson Valley River School, where many landscape artists had attended, too. He painted the Hudson Valley with the attraction, beauty, and scenery of the valley.(www.ency). He also was attracted to the awesomely romantic images of American wilderness and the open west, where he did most of his paintings. (www.art) Thomas was fascinated with Yellowstone and wanting to be associated with it painted the wilderness and scenery of it. (Vol.15) With the paintings he had done of Yellowstone Congress was fascinated with them, that they bought The Chasm and The Grand Canon of the Yellowstone Thomas had painted.

Le Grand Meaulnes :: essays research papers

Titre: Le Grand Meaulnes Autor: Alain Fournier Genre: Roman d’adventure Date de Publication: 1913 Temps: Se deroule en 1890 et dure a peu pres 6 ans Lieu: Sainte-Agathe en Sologne et puis a Paris Personnages principaux: Augustin Meaulnes, Franà §ois Seurel, Ynonne de Galais et Frantz de Galais. Personnages secondaire: Mme Meaulnes, M. et Mme Seuriel,Mouchboef, Valentine Blondeau, Les Charpentiers, M. de Galais, Ganache, oncle Florentin. Resume Brief Augustin Meaulnes arrive comme interne dans l’à ©cole de M. Seurel, pere de Francois Seurel, le narrateur. C’est un garcon original qui bouleverse la tranquillità © de cette vie campagnarde. Un jour,il s’à ©gare dans le bois et parvient à ¡ un chà ¢teau oà º se dà ©roule une fà ©te à ©trange, en l’honneur des fiancailles du maitre, Frantz de Galais. La fiancà ©e ne viendra pas. La fete s’achevà ©, et Frantz s ‘à ©nfuit. Mais Meaulnes a rencontrà © Yvonne de Galais,la sÅ“ur de Frantz. Elle est belle. Il en tombe amoreux.Il doit cependant rentrer à ¡ l’à ©cole. Dà ©sormais Meaulnes ne cesse de la rechercher, de meme qu’il essaie avec Francois de retrouver,en vain, le domaine mysterieux. Frantz reparait,fait promettre à ¡ Meaulnes par un serment de rà ©pondre à ¡ tout appel au secours.Meaulnes part pour Paris,retrouve Valentine la fiancà ©e de Frantz tandis que Francois retrouve Yvonne que Meaulnes à ©pouse f inalment.Mais le matin des noces,là ¡ppel de Frantz se fait entendre. Meaulnes fifà ©l au serment y rà ©pond,part en abadonant sa jeune femme qui mourra en couche.Meaulnes reveindra chercher sa fille un an plus tard et partira avec elle pour de nouvelles aventures. Personnages Principaux Augustin Meaulnes: C’est le hà ©ros du roman. Il est aventurier, idà ©aliste absolu et toujours insatisfait. Il veut toujours plus, il n’est jamais content de ce qu’il a. Quand il n’obtient pas quelque chose, il se donne a fond pour l’obtenir et quand il l’a, il veut dà ©ja autre chose. Il vit d’inquià ©tude, cherche autour de lui quelque chose qui soit capable de le contenter totalement et de lui faire conquà ©rir le royaume des reves. En plus de cela, il est un entraineur, un chef. Il n’accepte pas le monde tel qu’il est fait par les autres. Il est illuminà © et crà ©e autour de lui comme un monde inconnu. Pour y arriver, il organise des escapades et une de ses escapades le conduit a Yvonne, dont il tombe amoureux. Dà ©s le debut du rà ©cit on remarque que le mot â€Å"fuite† est associà © au pesonnage de Meaulnes. Un premier portrait de Meaulnes nous est fait par sa mere au debut du livre.

History of East Saint Louis Essay

East Saint Louis, Illinois is a very small city it has a total of 89 streets as of today. Around in the 1860’s the city used to be called Illinois town. It was the fourth largest city in the state of Illinois. People knew one place they could get a job was in this city. The name East Saint Louis came about because of the terrible reputation it had when it was known as Illinois town so they decided to rename it hoping to overcome all the challenges they were facing. Jobs started to vanish, riots broke out and blacks moving there was the cause of all this. Most of the blacks that lived there came from down South where living conditions couldn’t be much worst. If they had a chance to move their children they did. They didn’t want their children to experience the life of picking cotton as they had. The whites there were upset and weren’t going to let the blacks take their jobs. As time grew and more blacks start to come, the more jobs started to leave so as the jobs started to leave the Population started to decline meaning taxes were higher and cuts had to be made. One investor had in mind if he bought some vacant lots that he could make a little money on the side, because the federal government was going to provide funds for â€Å"turnkey housing† to be scattered throughout the city, so the empty property will be his quick get rich scheme. When the housing Authority began building Low-income housing, real-estates agents and developers made a lot of money building and selling houses in West Belleville. The whites started to flee once they started to build in their neighborhoods. As time as started to pass things started to get worst, Violence were people were hurt, Homes being broken into, people being robbed, and killed. The population in the 1960 was around 81,728, as of 2011 the population is 27,000, with an estimated 14,000 resident living in public housing that leaves the tax burden on the 13,000. Forty percent of the residents draw public aid. The blacks who are able are fleeing away from the city as well. This makes the population continue to drop. In 1972, James Williams was the town black first Mayor he defeated Charles Merritts even though Merritts had the support of the white Democrats. Thereafter Merritts was sentence to federal prison for taking kickbacks as president of School District 189 Board of Education and also for putting a contract out to kill Clyde C. Jordan, a great leader for the town who was a fellow school board member and publisher of the Crusader black weekly newspaper. In the present year we can see that nothing has changed. All the corruption of this town has been going on since the beginning of time. Nothing really has change, we might see a new promising building here and now but the wrong people still holds the key to the scene of this all. We as citizens of East St. Louis, IL hopefully one day get the courage to stand up for what’s right and not worry about the consequence we might endure. Change is good and the city of East Saint Louis needs a tremendous change and we as the people can and shall make that happen.

Maintain Your Ideal Weight Without Losing Your Mind

Within the last decade, weight has become an obsession for most Americans. Yet, most people try dieting and still find themselves fluctuating in weight. Diets fail because they are a short term fix. They often restrict a lot of food to get fast results. When one comes off a diet, weight rapidly packs back on. What most people do not know is that maintaining ideal weight is a lifestyle change with an appropriate frame in mind. In order to lose and maintain weight, people need to undergo a lifestyle change, not a short term fix.Choosing the right foods to eat is an essential factor in losing and maintaining proper weight. The best foods are natural. Processed foods often take too long for our bodies to break down, causing slow digestion, which burns fewer calories. Therefore taking in foods that aid digestion is significant. The perfect example is the food pyramid. Although it recommends that fruit and vegetables be taken in moderation I have found that snacking on them when I am hungr y, without condiments, is not a problem.High-protein foods are ideal because protein nourishes muscles that eat away at fat. When choosing breads, whole wheat and multigrain breads are best; they have more fiber and protein than white breads. At first, they may taste bland but they are fulfilling and promote digestion. The more one feels satisfied with the foods they eat the more likely they are to maintain their healthy eating habits. Most importantly, one should not resist any type of food because it eventually causes a food binge.When craving junk food, it is fine to have a taste or two of it with moderation. It is impossible to completely avoid what generations have grown to love. Eating junk food can be like an addiction; one slowly has to wane themselves out of it. Food should be considered as a daily nutritional value and not as a short term solution. The second key is, maintaining an active lifestyle. Being active can increase metabolism which burns calories. The more calori es one burns the less likely they are to store fat.The ideal way of dealing with this matter would be to exercise; however, many of us do not have time to fit it into our busy lives. Keeping fit does not have to be a something we add to our schedules; instead it can be a part of them. On the other hand, we have become a society dependent on technology. Although it is useful, it also makes us fat. If we chose to meet with a friend face to face instead of using mediated communication, we would take a lot more steps in life.Even simple things like taking the stairs instead of an elevator can be considered as part of an active lifestyle. Wanting to lose weight cannot become a problem in life. You want to lose and maintain proper weight without it controlling your life. Diets fail because they are a short term fix. They often restrict a lot of food to get fast results. When one comes off a diet, weight rapidly packs back on. It is simple, but often not easy, in order to lose and maintain proper weight one has to make some adjustments to their lifestyles.