Open Source Development Essay -- Open Source Development

1. Introduction This research project will explain in a clear manor what Open Source Development (OSD) is, the history and objectives of OSD, and how it is applicable to both home users and businesses. This project will also show the companies which use and develop Open Source and why Open Source is so important not only to businesses and people at home, but to us as computer scientists and how it will lead us further, farther, and deeper into technological advances in the software industry enabling us to grow and build a better future for computers and Development. â€Æ' 2. Management Summary This project provides an analysis of the current profitability and advantages of using Open Source Development in the business field as well as home use. The method of which these different software products were analysed were the history behind the products, how they were developed and how they are shown to flourish in their respective fields as opposed to closed Source products. The results of this can be shown in the use of the software in the current business fields where we can see that the software not only provides a viable alternative to their market competitors but it also shows that even in some fields that these products are the market leaders themselves. In this project you will find that using Open Source is an incredibly powerful reSource as these software projects are usually backed by large communities of people who are always trying to improve, fix and provide a constant ongoing technical support for these products. The recommendations you will find in this project include: †¢ Using Linux based Servers. †¢ Cheaper alternative desktop mailing software †¢ Using the osCommerce systems to help manage online shopping ... ...d David Diamond (2001) Just for Fun: The story of an accidental revolutionary. HarperBusiness 8.2 Website Resources History of the Mozilla Project 2014. Available from: http://www.mozilla.org/en-US/about/history/ [23 April 2014] About the Apache HTTP Server Project – The Apache HTTP Server Project 2014. Available from: http://httpd.apache.org/ABOUT_APACHE.html [23 April 2014] The Open Source Definition, Open Source Initiative 2012. Available from: http://OpenSource.org/osd [21 April 2014] History of the OSI, Open Source Initiative, 2012. Available from: http://OpenSource.org/history [22 April 2014] About us, The Linux Foundation 2014. Available from: http://www.linuxfoundation.org/about [23 April 2014] 8.3 Press Releases Page One PR, (2007). New Linux Foundation Launches – Merger of Open Source Development Labs and Free Standards Group.

Bermuda Triangle Essay -- Science Exploratory

Bermuda Triangle The Bermuda triangle, or the devil’s triangle, is an imaginary area located off the southeastern Atlantic coast of the United States. It is the greatest modern mystery of our supposedly well understood world. It is noted for a very high incidence of unexplained losses of ships, small boats, and aircraft. The tips of the triangle are generally thought to be Bermuda, Miami, Fla., and San Juan, Puerto Rico. Many theories attempting to explain the many disappearances have been offered throughout the history of the area. The most practical seem to be environmental and those that involve human error. Some reports even go as far as to saying that there are UFO’s kidnapping ships and planes, and that the lost city of Atlantis is below the Bermuda triangle. Weird disappearances and sightings in the Bermuda triangle date back to 1492, when the first voyage to America took place. Christopher Columbus when sailing through the imaginary place called the Bermuda triangle wrote of weird sightings in the ship log. He recorded that he and his crew had observed a large ball of fire fall into the sea and that the ship's compass was behaving differently. On October 11, which is the day Columbus landed on Cuba, Columbus and another man saw a light over the water, which disappeared suddenly. Within hours land was sighted. These incidents have been thought to be the first known indications that the Bermuda Triangle is filled with bizarre happenings, Columbus himself was not apparently bothered by what he had seen. The ball of fire might have been a meteor, a fire on the shore, a torch in an Indian's boat or even a hallucination. Whatever it was, Chris Columbus provided the Bermuda Triangle with a five hundred-year story. (3) Many ships and planes have been lost in the triangle. Of unexplained stories, the most famous of them all is of flight 19. The mission called for the thirteen men to fly due east fifty-six miles to Hens and Chicken Shoals to conduct practice-bombing runs. When they had completed that objective, the flight plan called for them to fly an additional sixty-seven miles east, then turn north for seventy-three miles and finally straight back to base, a distance of 120 miles. This course would take them on a triangular path over the sea. About an hour and a half into the mission Lt. Taylor reported that his compass was not working. Planes t... ...pearances occurred. Each was a world away from the other. One was off Australia, the other off Puerto Rico in the Bermuda Triangle, yet both were very similar. Both pilots were sober, one was a US Marine. Both reported a strange object harassing or, at the very least, very interested in their aircraft. Both could not describe exactly what it was. But in both cases, when it came in closer, it apparently caused a disruption of radio communication and cut out electro-magnetic power, causing the engine to sputter. Neither aircraft left any trace. Both carried ELTs, automatic alarms that are jettisoned when the aircraft impacts. This triggers them to send their electronic SOS signals, guiding rescuers to the point of the incident. Yet in both these incidents they were hushed, for no signal was ever picked up. (2) The Great Bermuda Triangle is one of the biggest mysteries still alive today. It has created many stories, some true, some untrue; there have been many unexplained disappearances in this imaginary place. Peoples lives have been lost, and ships and planes seemed to enter and never come out. Whatever it is, it will always be a mystery, a mystery of the Great Bermuda Triangle. Bermuda Triangle Essay -- Science Exploratory Bermuda Triangle The Bermuda triangle, or the devil’s triangle, is an imaginary area located off the southeastern Atlantic coast of the United States. It is the greatest modern mystery of our supposedly well understood world. It is noted for a very high incidence of unexplained losses of ships, small boats, and aircraft. The tips of the triangle are generally thought to be Bermuda, Miami, Fla., and San Juan, Puerto Rico. Many theories attempting to explain the many disappearances have been offered throughout the history of the area. The most practical seem to be environmental and those that involve human error. Some reports even go as far as to saying that there are UFO’s kidnapping ships and planes, and that the lost city of Atlantis is below the Bermuda triangle. Weird disappearances and sightings in the Bermuda triangle date back to 1492, when the first voyage to America took place. Christopher Columbus when sailing through the imaginary place called the Bermuda triangle wrote of weird sightings in the ship log. He recorded that he and his crew had observed a large ball of fire fall into the sea and that the ship's compass was behaving differently. On October 11, which is the day Columbus landed on Cuba, Columbus and another man saw a light over the water, which disappeared suddenly. Within hours land was sighted. These incidents have been thought to be the first known indications that the Bermuda Triangle is filled with bizarre happenings, Columbus himself was not apparently bothered by what he had seen. The ball of fire might have been a meteor, a fire on the shore, a torch in an Indian's boat or even a hallucination. Whatever it was, Chris Columbus provided the Bermuda Triangle with a five hundred-year story. (3) Many ships and planes have been lost in the triangle. Of unexplained stories, the most famous of them all is of flight 19. The mission called for the thirteen men to fly due east fifty-six miles to Hens and Chicken Shoals to conduct practice-bombing runs. When they had completed that objective, the flight plan called for them to fly an additional sixty-seven miles east, then turn north for seventy-three miles and finally straight back to base, a distance of 120 miles. This course would take them on a triangular path over the sea. About an hour and a half into the mission Lt. Taylor reported that his compass was not working. Planes t... ...pearances occurred. Each was a world away from the other. One was off Australia, the other off Puerto Rico in the Bermuda Triangle, yet both were very similar. Both pilots were sober, one was a US Marine. Both reported a strange object harassing or, at the very least, very interested in their aircraft. Both could not describe exactly what it was. But in both cases, when it came in closer, it apparently caused a disruption of radio communication and cut out electro-magnetic power, causing the engine to sputter. Neither aircraft left any trace. Both carried ELTs, automatic alarms that are jettisoned when the aircraft impacts. This triggers them to send their electronic SOS signals, guiding rescuers to the point of the incident. Yet in both these incidents they were hushed, for no signal was ever picked up. (2) The Great Bermuda Triangle is one of the biggest mysteries still alive today. It has created many stories, some true, some untrue; there have been many unexplained disappearances in this imaginary place. Peoples lives have been lost, and ships and planes seemed to enter and never come out. Whatever it is, it will always be a mystery, a mystery of the Great Bermuda Triangle.

Contrast the Characters of Agamemnon and Jason Essay

Both Agamemnon and Jason share intrinsic similarities in that they are both the tragic heroes of their plays: Aeschylus’ ‘Agamemnon’ and Euripides’ ‘Medea’ respectively. However, they do not share the same fate. Agamemnon is killed for what he has done, whereas those close to Jason emotionally and politically are killed to spite Jason. Both characters are detested by their wives, but for different reasons. Agamemnon has sacrificed his daughter and Jason has left his wife to marry entirely for personal gain. Agamemnon’s motives were that he had to fulfil his oath to help the husband of Helen should she ever leave/be taken. His motives were better than Jason’s, who left his wife for his own gain. Medea had two sons so he could not justify leaving her because of childlessness. However, Jason has not killed anyone, which Agamemnon has. Also, leaving a wife would not have been uncommon, and so it is not as significant as it would be had the events taken place today. Both characters thank the gods for their successes. When Agamemnon first arrives on stage he thanks the gods for his victory and safe return home. When Medea challenges Jason and attacks him for what he has done to her, despite all she has done to help him, he claims that although she did do some things, the one who helped him the most was Aphrodite. Both Jason and Agamemnon are either not arrogant or stupid enough not to thank the gods for their achievements. All four parties, Jason, Agamemnon, Medea and Clytemnestra have deceived their counterpart at some point. Agamemnon sends for Iphigenia without telling her or Clytemnestra what he plans to do. Jason does not tell Medea about his marriage to Glauce until after it has happened. Medea has to lure Jason into a false sense of security and so apologises to him, telling him he is right and she wrong and that she was angry. This prevents him from suspecting her. Clytemnestra deceives Agamemnon by welcoming him home. Even Agamemnon thinks she is exaggerating, saying that she is â€Å"grovelling† and that the â€Å"speech to suit (his) absence, (was) much too long†. Both Agamemnon and Jason are insensitive. Neither refers to his wife by name. Agamemnon only refers to Clytemnestra as â€Å"Leda’s daughter†. They expect everything they have done to their wives to be ignored and everything to be left without any mention of what they have done. Jason goes as far as saying that Medea should be thanking him when she confronts him. He says that she lives in Greece, rather than â€Å"an uncivilised country†, and had also â€Å"won renown.† In saying that he would rather not have â€Å"gold in (his) house) or the skill to sing a song lovelier than Orpheus sang† unless a famous name came with it, he reveals a part of his character. He wants to be famous; he wants his name to be known, at the expense of other things. Medea has noticed this. During her argument with Jason she says that â€Å"it was marriage to a foreigner that you would detract from that great name of yours†. Jason also shows his insensitivity by claiming that he married Glauce entirely out of his wanting to look after Medea and their sons. He claims that he did this so that they could â€Å"live comfortably and not go without anything.† If there were any good intentions of Jason, he then loses any chance of Medea genuinely agreeing and calming down when he says that he can â€Å"ensure (his) prosperity by â€Å"joining (their) two families†. This shows that he is prepared to use his family in order to preserve his comfort and wealth, and indicates that Jason can be selfish. The greeting of Agamemnon by Clytemnestra is ironic. Among the first things she says to him is that â€Å"(their) child is gone† and that â€Å"by all rights (their) child should be (there)†. She means Iphigenia of course, but covers this up by quickly adding after a pause, â€Å"†¦Orestes†. Later on in the same speech she simply says the sentence â€Å"Our child is gone.† She hints about her anger but covers them up, Agamemnon not specifically referring to them. The sympathies of the chorus change in both plays. In Medea, the chorus of Corinthian women strongly supports Medea at the beginning of the play, sympathising with her. However, they begin to pity Jason and no longer support Medea when Medea says she is going to kill her own children to spite Jason. In Agamemnon, the chorus is made up of old men who are too old to fight in Troy. They, if grudgingly, admire Clytemnestra. They respect her plan with the beacons so she would know when Troy had fallen, saying after she told them it was her that it was â€Å"spoken like a man†. However, they lose this respect when they find out that Clytemnestra has killed Agamemnon, their king who they admire for destroying Troy. Because of the action of Jason and Agamemnon, many innocent people are killed. In ‘Agamemnon’, Cassandra is killed by Clytemnestra, despite the fact that Cassandra is a captive and had nothing to do with the death of Iphigenia. In ‘Medea’, Glauce, Creon and Jason and Medea’s sons are killed by Medea. These innocent victims in both plays are certainly not deserving of what happens to them. Because of what Jason and Agamemnon have done to hurt their wives, five people have been needlessly killed. Both Agamemnon and Jason care about their children. In ‘Agamemnon’, Clytemnestra says to Agamemnon, â€Å"you seem startled†, upon hearing the news that Orestes is gone. Additionally, in Euripides ‘Iphigenia in Aulis’, Agamemnon tries to send a message to Iphigenia to tell her to return home. When the message fails to get through, he tells Menelaus that he â€Å"will not kill (his) daughter.† After being persuaded to change his mind, realising he has no choice, he is still pained to do it, saying that her â€Å"hand’s touch brings swift tears flooding from (his) eyes.† Jason, after hearing the news that his sons are dead and during his confrontation with Medea he reveals how he longs â€Å"to clasp them, to kiss (their) dear lips†. What have Medea and Clytemnestra sacrificed? Clytemnestra has lost a daughter, and this is her sole motivation for killing Agamemnon. Medea, however, has betrayed her family, left her home and killed her own brother to help Jason in every way she can. Jason has abandoned her after she has had two sons when she is in a foreign land with no friends or family to fall back on entirely for his own personal gain. She has then been told she has to leave the country, and she has been forced to flee to another foreign country at some point. Medea is more justified in wanting revenge. She is a far worse position than Clytemnestra, who still lives in her home with friends and family close by in the palace at Mycenae and has a new husband. Medea has also been very poorly thanked for her role in making sure Jason escapes Colchis with the Golden Fleece.

Recrystallization of Benzoic Acid

The objective of this experiment was to observe multi-step purification of benzoic acid after performing the extraction from a mixture containing benzoic acid, cellulose, and methyl orange. Recrystallization was done to remove impurities from the sample. The amount of BA recovered during recrystallization is much less than the extracted amount of BA. The difference between the pure and impure samples was observed by comparison of melting points. It was found that impure samples will have a lower and wider melting point range.The experiment performed was important because it provides important knowledge about the chemical nature and reactivity’s of various compounds that can be used in everyday life. Introduction Now that the desired compound is extracted, it still contains impurities. These impurities can be removed through a process called recrystallization. Recrystallization is a method for purifying solid compounds which are frequently the products of organic reactions. Thi s theory is based on three important concepts. The first is that a compound is always more soluble in hot solvents than in cold solvents.Secondly, molecules have unique solubility properties. Lastly, a growing crystal will only accept similar entities into its lattice. This is related to the crystal lattice theory which states crystal formation is anti-entropic based on the equation ? G =? H-T? S. There are three stages of solubility: collision, dissociation, and solvation. In order to raise the probability of collision between the solute and solvent, heat is added to the system. When this occurs, the solute will attack the crystalline structure of the solute and start dissociation. As dissociation continues until all the molecules are free, solvation occurs.Choosing the right solvent is important when considering recrystallization. The solute must have a high temperature coefficient in the solvent: it must be soluble at high temperatures and insoluble at low temperatures, satisfyin g the first principle stated above. Also the boiling point of the solvent must be lower than the melting point of the solute. This will ensure that the solute dissolves in the solvent and does not melt. The solvent must also be inert to prevent chemical interactions with the solute. Impurities must either be readily dissolved in the solvent or be insoluble.The solvent must also be volatile, and finally, it would be beneficial to the experimenter if the solvent is relatively inexpensive. Once the color and most impurities are removed, the crystals can be formed in the solution through a process called nucleation. Nucleation can be induced by slowly cooling the solution to room temperature. It is important to do this slowly so that small solute resembling impurities do not enter the crystal lattice, as described by the third principle of recrystallization. Chemists often add already pure crystals of the solute to the solution in order to provide a pre-formed lattice for other molecule s to enter.This is called seeding. Scratching the glass container in which the solution is contained with a glass stir rod will also induce nucleation on microscopic glass particles. The concept of scratching is similar to that of seeding. Finally, nucleation can be induced by cooling the solution farther in an ice bath; however, this is only a last resort option due to its least efficiency to bring forth crystals. The crystallized solute can then be collected by vacuum filtration. There is a difference observed in the physical properties of the pure compound and the impure mixture. One of the tests of purity is melting point.Melting point is an intrinsic, or intensive, property; the value is independent of the quantity of the substance. Melting point is the temperature at which a substance changes physical state from solid to liquid. Because the substance will have a certain shape and surface area exposure, there will be a time interval in which the melting occurs. Thus, it is more accurate to refer to this as melting range. Melting range encompasses the temperature at which the first particles can be seen turning from solid to liquid until all the sample is in the liquid state. Purer samples have smaller melting ranges.Perfectly pure compounds will have ranges of only 1-2 °C. Impurities lower melting point below literature values and also widen the range between which melting occurs. New techniques and equipment used were used during both parts of the purification process. Activated charcoal was used to adsorb impure colored products. Gravity filtration was used to remove insoluble products which were impurities. Fluted filter paper was used to catch more of the impurities. A heating mantel was introduced during recrystallization. It is a heat source used for solutions. For determining the melting point of benzoic acid, a Mel-Temp apparatus was use.It is used for determining when a small amount of a solid begins to melt and when the melting ends while reco rding the temperatures, respectively. Experimental: Recrystallization Lab: Initially, took a small amount of impure BA to the side for following week’s lab. The impure BA crystals were weighed, using an analytical balance, and then placed in a 250 mL Erlenmeyer flask. 200 mL of water was boiled (with boiling stones) in a 250 mL round bottom flask using a heating mantel. The boiled water was added slowly to the benzoic acid crystals. Only enough water was added to dissolve the BA crystals.For the rest of the lab the Erlenmeyer flask was kept on a steam bath. Charcoal was added to the BA solution and then gravity filtered using a funnel with fluted filter paper. The filtrate was collected in a 250 mL Erlenmeyer flask. If color in the BA solution still remained then charcoal should be added again. The BA solution was removed from the steam bath and cooled, preferably on a window sill. If crystals did not form while cooling on window sill, use another method to induce nucleation to the start the formation of crystals. The crystals were collects by vacuum filtration and placed on a watch glass to dry.Melting Point of Benzoic Acid: A melting point tube was loaded with BA crystals by inverting the tube into the BA crystals on the watch glass. The tube was packed by dropping through a funnel. The Mel-Temp apparatus was used to determine the melting point range. A rapid melting range experiment was done first and then a slow melting range experiment was carried out to get a better range. Results: Recrystallization lab: Observations: Not much charcoal was used to adsorb the colored molecules The BA crystals were small, shiny, flaky, and white. Almost comparable to texture of dandruff. Data: Mass of extracted Benzoic Acid = 2. 3 g Mass of recrystallized Benzoic Acid = 1. 84 g Calculations: Percent (%) recovery =(weight after recrystalization)/(mass crude BA) ? 100 Percent (%) recovery =(1. 84 g)/(2. 43 g) ? 100=75. 72% Melting Point lab: Observations: Once the ben zoic acid began to melt, it happened very quickly.It was hard was difficult to watch the melting and recording the start and end temperature. The crude BA had a lower and wider melting point range. Data: Melting Point Ranges RunCrude (Impure) Benzoic Acid ( °C)Purified Benzoic Acid ( °C) Fast 110. 2-118. 4 at 4. 5 selectivity (Range: 8. 2)115. 4-118. 5 at 4 selectivity(Range: 3. ) Slow113. 2-117. 3 selectivity (Range:4. 1)117. 5-120. 0 selectivity (Range: 2. 5) Discussion ; The goal of recrystallization and determining melting point labs were to explore the techniques used to obtain pure samples from desired compounds. After the extraction the goal was to recrystallize the benzoic acid and determine the percent recovery. Then the goal was to determine the melting point range of the recrystallized benzoic acid and compare it to the melting range of the small sample of the impure benzoic acid. 1. 84 grams of pure benzoic acid was obtained, which was calculated to be 75. 2% from th e 2. 43 grams of impure benzoic acid.The percent recovery from the impure sample shows that about three fourths of the sample was able to be collected as pure benzoic acid, and that 0. 59 g of the impure benzoic acid was impurities. From this the experimenter can infer that the pure benzoic acid accounted for most of the mass or that little benzoic acid was lost with the removal of the impurities. Also, there is always a chance that some of the benzoic acid may have remained in the solution instead of crystallizing. Also, using an ice-bath to induce nucleation could have lowered my results or recrystallization because it was the last resort to crystalize the solute. Maybe adding too much charcoal could have adsorbed some of the solute. The charcoal was used to adsorb any of the cellulose (which is the reason for the color) that was left behind. Not too much charcoal was actually used; however, my benzoic acid solution did not have much color so charcoal may not have been needed.Note that the initial value for percent recovery is slightly less than the extracted mass because of the impure benzoic acid set aside for the melting point comparison. The total composition from the very first starting benzoic acid mixture is only 44. 2% (1. 84 grams / 4. 17 grams). Considering practical purposes of recrystallization, one comes to realize how important it is to make this processes as efficient as possible to save money and gain as much product as possible, for example with ibuprofen purification for the pharmaceutical industry. The purity of the sample is shown by the melting range. As expected, the pure benzoic acid had the smallest melting point range of 2. 5 °C. From this, one can tell that this sample was not perfectly pure because pure compounds have melting point ranges of less than 1 °C.There may have been some impurities left in the sample since activated charcoal was not used for this sample. Human error while scraping the impure mixture from the funnel an d also from the Erlenmeyer flask would result in a decreased yield. Also, the nucleation may have had some impurity particles collect in the lattice when recrystallizing. After performing the rapid and slow experiment, the temperatures (especially for the pure BA) were not similar. This was probably due to what is called thermometer lag. If the Mel-Temp apparatus’ selectivity was higher than the temperature readings were not as accurate as the slow experiment.The actual value for the melting range coincides with the literature value of 122. 4 °C given in the reagent table. The impure sample, however, had a significantly larger melting range of 4. 1 °C. Also, the impure sample had a lower temperature. This is because impurities disrupt lattice forces and decrease the energy required to break the intermolecular bonds between benzoic acid molecules. One way that this experiment could have been improved is to have more space to perform the various steps in the lab. A lot of t he mistakes and errors committed (i. e. pillage) were due to crowding of various equipment that were closely packed next to each other. Overall, theses labs were a success be the experimenter was able to achieve the goals of each lab. The benzoic acid was able to recrystallize and the melting point was fairly close to the literature value even with possible errors performed in lab.Works Cited Wikipedia: The Free Encyclopedia. Wikimedia Foundation, Inc. 22 July 2004. Thurs. 7 Oct. 2010. Zubrick, James. The Organic Chem Lab Survival Manual. 6th. Pittsburgh: John Wiley & Son, Inc. , 2008. Print. Recrystallization of Benzoic Acid Recrystallization of Benzoic Acid Objective To purify benzoic acid by recrystallization and gain experience with a basic organic laboratory techniques. Background Products of chemical reactions are often contaminated with impurities. One method for purifying chemicals, recrystallization, takes advantage of the differences in the solubilities of the desired products and the impurities and the tendency for the slow formation of crystals to exclude impurities from the crystalline solid. HC HC HC CH C CH MgBr + CO2 + HCl HC HC HC CH C CH CO2H ClMgBr Benzoic acid, the chemical that we will be purifying, can be made by reacting phenylmagnesium bromide with carbon dioxide. When the product of that reaction is treated with hydrochloric acid, benzoic acid is formed. From the balanced chemical equation, it is clear that the benzoic acid will not be pure since the byproduct MgClBr, an ionic solid, forms at the same time the desired product forms. Benzoic acid can be separated from ionic solids because the materials have different solubilities in water. At room temperature, benzoic acid is not particularly soluble in water, whereas ionic solids like MgClBr are. Thus, adding water to the crude reaction products will dissolve the ionic solid, and nearly all of the benzoic acid will remain undissolved. If the suspension were filtered, much of the impurity would be washed away; however, the resulting product wouldn’t be as pure as a recrystallized product. To take advantage of the extra purity garnered by crystallization, all of the benzoic acid must be dissolved. On the other hand, the benzoic acid needs to come back out of solution to crystallize. Simply adding room-temperature water cannot accomplish this goal; once the benzoic acid is dissolved there would be no reason for it crystallize. Since benzoic acid is much more soluble in hot water as compared to cold, small amounts of hot water are added to dissolve the benzoic acid. If the hot, saturated, aqueous solution of benzoic acid is cooled, the solution becomes supersaturated, and the supersaturated solution crystallizes. Procedure 1. Obtain a sample of copper(II) sulfate contaminated benzoic acid. 2. Add approximately 0. g (record the actual mass) of the contaminated benzoic acid and 5 mL of water to a 25-mL Erlenmeyer flask. 3. Warm the flask and its contents on a hot plate and slowly add near-boiling water to dissolve the solids. 4. Continue to warm the flask and add near-boiling water until all of the solids have disolved 5. Remove the flask from the hot plate and allow it to cool slowly on the bench top. Covering the flask with a beaker can help slow the rate at which the solution cools. After approximately twenty minutes, crystals will have formed. Cool the suspension further using an ice bath. If crystals have not formed after 20 minutes, there are a few techniques that can be used to coax the crystals out of solution. Often scratching the glass container with a glass rod will induce crystallization. Alternatively, a seed crystal can be obtained by evaporating a drop of the solution on the tip of a stirring rod or spatula. Returning this seed crystal to the super saturated solution will cause crystals to form. 6. Transfer the crystals to a Hirsch funnel, and filter the benzoic acid–water suspension. . Wash the benzoic acid crystals with ice-cold water by pouring ice-cold water over the crystals. 8. Dry the crystals on the Hirsch funnel; that is, allow the vacuum filtration system to draw air through the crystals until the mass of the crystals remains relatively constant. Place the benzoic acid in your drawer and allow it to dry completely. 9. While the benzoic acid is drying, evaporate the water from the aqueous CuSO4 s olution. Remember to add a magnetic stir bar to your flask to lower the risk of spattering. 10. Note the appearance of your CuSO4, and, if possible, record the mass of the CuSO4 that you obtained. 11. After allowing the benzoic acid crystals to dry for a week, determine the mass and the melting point of the benzoic acid. Experimental Report Write an â€Å"experimental† describing the procedure that you followed to recrystallize the benzoic acid. A first draft of the experimental is due one week after steps 1–10 have been completed. A final copy that includes the final mass and the melting point of the benzoic acid is due one week after step 11 is completed. Recrystallization of Benzoic Acid Recrystallization of Benzoic Acid Objective To purify benzoic acid by recrystallization and gain experience with a basic organic laboratory techniques. Background Products of chemical reactions are often contaminated with impurities. One method for purifying chemicals, recrystallization, takes advantage of the differences in the solubilities of the desired products and the impurities and the tendency for the slow formation of crystals to exclude impurities from the crystalline solid. HC HC HC CH C CH MgBr + CO2 + HCl HC HC HC CH C CH CO2H ClMgBr Benzoic acid, the chemical that we will be purifying, can be made by reacting phenylmagnesium bromide with carbon dioxide. When the product of that reaction is treated with hydrochloric acid, benzoic acid is formed. From the balanced chemical equation, it is clear that the benzoic acid will not be pure since the byproduct MgClBr, an ionic solid, forms at the same time the desired product forms. Benzoic acid can be separated from ionic solids because the materials have different solubilities in water. At room temperature, benzoic acid is not particularly soluble in water, whereas ionic solids like MgClBr are. Thus, adding water to the crude reaction products will dissolve the ionic solid, and nearly all of the benzoic acid will remain undissolved. If the suspension were filtered, much of the impurity would be washed away; however, the resulting product wouldn’t be as pure as a recrystallized product. To take advantage of the extra purity garnered by crystallization, all of the benzoic acid must be dissolved. On the other hand, the benzoic acid needs to come back out of solution to crystallize. Simply adding room-temperature water cannot accomplish this goal; once the benzoic acid is dissolved there would be no reason for it crystallize. Since benzoic acid is much more soluble in hot water as compared to cold, small amounts of hot water are added to dissolve the benzoic acid. If the hot, saturated, aqueous solution of benzoic acid is cooled, the solution becomes supersaturated, and the supersaturated solution crystallizes. Procedure 1. Obtain a sample of copper(II) sulfate contaminated benzoic acid. 2. Add approximately 0. g (record the actual mass) of the contaminated benzoic acid and 5 mL of water to a 25-mL Erlenmeyer flask. 3. Warm the flask and its contents on a hot plate and slowly add near-boiling water to dissolve the solids. 4. Continue to warm the flask and add near-boiling water until all of the solids have disolved 5. Remove the flask from the hot plate and allow it to cool slowly on the bench top. Covering the flask with a beaker can help slow the rate at which the solution cools. After approximately twenty minutes, crystals will have formed. Cool the suspension further using an ice bath. If crystals have not formed after 20 minutes, there are a few techniques that can be used to coax the crystals out of solution. Often scratching the glass container with a glass rod will induce crystallization. Alternatively, a seed crystal can be obtained by evaporating a drop of the solution on the tip of a stirring rod or spatula. Returning this seed crystal to the super saturated solution will cause crystals to form. 6. Transfer the crystals to a Hirsch funnel, and filter the benzoic acid–water suspension. . Wash the benzoic acid crystals with ice-cold water by pouring ice-cold water over the crystals. 8. Dry the crystals on the Hirsch funnel; that is, allow the vacuum filtration system to draw air through the crystals until the mass of the crystals remains relatively constant. Place the benzoic acid in your drawer and allow it to dry completely. 9. While the benzoic acid is drying, evaporate the water from the aqueous CuSO4 s olution. Remember to add a magnetic stir bar to your flask to lower the risk of spattering. 10. Note the appearance of your CuSO4, and, if possible, record the mass of the CuSO4 that you obtained. 11. After allowing the benzoic acid crystals to dry for a week, determine the mass and the melting point of the benzoic acid. Experimental Report Write an â€Å"experimental† describing the procedure that you followed to recrystallize the benzoic acid. A first draft of the experimental is due one week after steps 1–10 have been completed. A final copy that includes the final mass and the melting point of the benzoic acid is due one week after step 11 is completed.

Allocating Tasks in an organisaton Essay

When allocating work and drawing up work plans there are many aspects to be considered. These include Goals and objectives, Competence, Operational needs, efficiency, cost effectiveness and consultation. GOALS AND OBJECTIVES The desired outcome of the task needs to be clearly communicated. This is to ensure that staff can align the work they are doing with an outcome to keep them on track. Small task orientated goals will help the staff work toward the larger picture and will keep them motivated and interested. Just the same as the objective, goals will help keep the staff aligned to final outcome. Setting SMART goals will help achieve this. COMPETENCE The competence of the staff needs to be taken into consideration when allocating work. This is because giving work that is too above a staff members level of expertise is going to disengage them as they work toward something that is unattainable. Further, this staff member will not do the task correctly which may result in letting not only themselves down, but also their team and their manager. The same is true with giving staff work that is too below their skill level. They can become disengaged very quickly. While they may not do the task incorrectly, it is a waste of resources. Staff need to know that they are valued, that their work is valued and that they aren’t wasting their time. Allocating work to someone who is too skilled to do does not ensure that the staff being is valued. Staff should be allocated work that is a small stretch beyond where they are now and in line with their development plan. OPERATIONAL NEEDS Work needs to be allocated in accordance with operational needs. There’s no sense EFFICIENCY Work must be allocated in accordance with a staff member’s knowledge and their experience. Efficiency ties in very closely with competence, as allocating work inefficiently will result in the same consequences as allocating work that isn’t in accordance with a staff members competence. SMART goals Communicate goals – seek clarification, ask questions Understand KPIs Break goals down, with time frames Competence of staff members is important to ensure that the work is allocated to staff members who can do the work efficiently and effectively. It is necessary to develop KRAs and KPIs that meet the organisations needs because†¦. The development and implantation of effective performance management systems is important because CODE OF CONDUCT It is necessary to have a code of conduct for the organisation because it gives each employee the same foundation of expectations both of them as an employee and of the company as an employer. The code of conduct sets out very clearly what is acceptable behavior from an employee and it also sets out the consequences should the code be broken. Without a code of conduct employees will not necessarily be treated fairly and will be subjected to personal opinions of their people leader, meaning that was is acceptable in one team may not be acceptable in another which will lead to unfair dismissals and a disengaged workplace. MONITOR AND EVALUATE WORK It is important to regularly monitor and evaluate the works of employees to ensure that they are working towards the desired objectives. It is necessary to give feedback and reinforcement to employees to acknowledge good work, as this is a motivator. It ensures that employees’ efforts are recognised and they feel valued. This will then motivate them to continue doing what they are doing, or even improve.

A Historical Exploration Essay

In spite of the long existing disagreement regarding the very term, nature, and scope of modernism, it is still considered as one of the most significant artistic-cultural events of the twentieth century (Poplawski, 2003). This paper will provide a historical overview of early modernism focusing on the ideologies, influences, and a glimpse on works of the renowned modernists – both in literature and the arts – who lived between the periods of 1871-1914. Most importantly, this paper will explore on how early modernism managed to establish itself as a canonical category for artists and academicians alike, based on the critical articulations noted about the period. Early Modernism: 1871-1914 One of the most distinct characteristics of early modernism as a movement is its deliberate separation from the forms, structural designs, and traditions of the ancient times (Ricca, n. d. ). It is also characterized by its emphasis on details which refines the singularities of the artist as an individual. It promotes personal style that is anti-public and it is perceived to be inclined towards external formlessness. In literature, there were three styles that emerged: naturalism, decadent, and expressionism. Naturalism put emphasis on social issues being faced by common people, especially women. The writers of this movement tried to be objective in analyzing the modern society. Ricca (n. d. ) noted that in interpreting these social upheavals, the early modernists tried to explore on different elements such as simplicity, color and geometrical forms. The decadent style, on the other hand, eliminated the concept of materialism and scrutinized scientific revolution. It associated the bourgeois society with mediocrity. One good example of decadent writers is Oscar Wilde who expressed in his writings approaches to modern life. In relation to countering the impacts of capitalism and bourgeois community, expressionism attempted to illustrate new ways of artistic expression. The literary works of Franz Kafka are good examples of expressionism. He put into question the traditional concepts of reality and demonstrated the proofs that an individual in the modern age is being victimized by his environment beyond his control. Saler (1999) noted that aside from the movement’s association with stylistic innovations, early modernism includes a wide range of conceptions regarding nature and the purpose of art. All around the globe, modern art is in the state of constant change. The economic and political upheavals gave the artists the inspiration to seek new means of artistic expression and this resulted to a number of modern art movements. In the field of art, one example that can be noted is Umberto Boccioni’s Unique Forms of Continuity and Space. Boccioni was a well-known Futurist and he rejected the traditional concepts of the past and gave way to the new meanings of art through his artworks. Conclusion Modern art is usually perceived in the view of the modernists’ rejection of the conventional ideas and traditions of the past. Studies have shown that in order to understand well the true purpose of this movement, there is a greater need to look objectively into the social, political and historical influences that inspired early modernists. References: Early Modernism 1871-1914. Retrieved May 3, 2009, from www. class. uidaho. edu/engl210kt/Slides/Modernism%20to%20Postmodernism. ppt. Poplawski, P. (2003). Encyclopedia of Literary Modernism. Westport, CT: Greenwood Press. Ricca, K. (n. d. ) Early Modernism. Retrieved May 3, 2009, from gds. parkland. edu/gds/131online/presentations/EarlyModern. ppt Saler, M. T. (1999). The Avant-Garde in Interwar England: Medieval Modernism and the London Underground. New York: Oxford University Press.

Interview

The snowfall was tumbling down, and the winds jolted you with their quick and frigid entrance. Crossing the street on a day like this could be a real struggle for anyone; however for an elderly man with a cane It Is nearly impossible without any assistance. So the elderly man waited until one would approach him and kindly guide him across the street. Over the course of him Alton, three people walked by; a policeman, a teacher, and a homeless man, however only one approached the elderly man.The first person to walk by the elderly man was the police officer. He was around 1 Inches tall and had a muscular build. Before the police officer walked by the elderly man, the police officer could tell that the elderly man needed help crossing the street. The roads were slippery, and the heavy snow was Impacting ones sight. However the police officer was already late for work, and by taking the time to help the elderly man cross the tree it would have made him even more late. Especially since th e weather conditions were not in his favor.So the police officer crossed the street unattended, and the elderly man started at the back of his head with his sorrowful eyes. The 2nd person to walk by the elderly man was a teacher. The teacher just finished a meal at her favorite restaurant, and had to cross the street to get to her car. She looked at the elderly man and knew right away that he wanted to cross the street, however needed assistance. She thought for a second than came to a conclusion hat she herself could not help because she would already have enough trouble crossing the street herself. Someone else will notice and help him† she thought to herself. So she crossed the street unattended, and once again the elderly man stared at the back of her head with his sorrowful eyes. The third person that walked by the elderly man was the homeless man. The elderly man turned his head and saw someone approaching him. It wasn't a police officer, or a teacher, however he saw som eone with a ripped Jacket, torn Jeans, and sorrowful eyes approach him.Yes, this time the elderly man was approached by a homeless man, however unlike the police officer, or the teacher, he approached the elderly man. The homeless man asked the elderly man if he needed help crossing the street, and the elderly man replied with a soft â€Å"yes please†. So the homeless man crossed the street attended by and elderly man with Joyful eyes. The police officer, the teacher, and the homeless man all walked by the elderly man who was In need of help, however the only one that helped him was the man who was considered the lowest In society out f all of them.The police officer didn't help him because he was going to be late for work, the teacher did not help him because she thought someone else would help him, and the homeless man helped him Just out of moral Integrity. Interview By sesame-madam Unexpected approach the winds Jolted you with their quick and frigid entrance. Crossing the street on a day it is nearly impossible without any assistance. So the elderly man waited until one waiting, three people walked by; a policeman, a teacher, and a homeless man, he elderly man was the police officer.He was around 5†³11 inches tall and had a slippery, and the heavy snow was impacting ones sight. However the police officer The 2nd person to walk by the elderly man was a teacher. The teacher Just finished a the police officer, or the teacher, he approached the elderly man. The homeless man homeless man all walked by the elderly man who was in need of help, however the only one that helped him was the man who was considered the lowest in society out him, and the homeless man helped him Just out of moral integrity. Interview Unless you are fascinated by the rich variation in human experience, qualitative interviewing will become drudgery† â€Å"If participant observation means ‘walk a mile in my shoes', then in-depth interviewing means ‘walk a mile in my head† Interviews as conversations with a purpose conversational style but interviews are not naturally occurring conversations he interaction is one-sided the interviewer has an agenda interviewing requires skills the interaction is recorded Types of interviews There are at least 3 major types of interviews: 1. The standardized (formal or structured) interview 2.The unsubstantiated (informal or nondestructive) Interview 3. The compartmentalized (guidedsemistructured or focused) interview Standardized interview The standardized interview uses a formally structured schedule of interview questions. The interviewers are required to ask subjects to respond to each question. That all the questions have been worded in a manner that allo ws subjects to understand clearly what they are being asked The Unsubstantiated Interview In contrast to the rigidity of standardized interviews, unsubstantiated interviews do not utilize schedules of questions.Interviewers must develop, adapt, and generate questions and follow-up probes appropriate to the given situation and the central purpose of the investigation Complementarities interview This type of interview involves the implementation of a number of predetermined questions and/or special topics. These questions are typically asked of each interviewee in a systematic and consistent order, but he interviewers are allowed freedom to digress. Four types of questions 2. 3. 4. Essential Questions Extra Questions The row-Away Questions Probing Questions 1.Essential Questions C] Essential questions exclusively concern the central focus of the study C] They may be placed together or scattered throughout the survey, but they are geared toward eliciting specific desired information 2. Extra Questions [l Extra questions are those questions roughly equivalent to certain essential ones but worded slightly differently C] These are included in order to check on the reliability of responses (through examination f consistency in response sets) or to measure the possible influence a change of wording might have 3. Interview What do you enjoy most about your job? What I enjoy most about my job is simply helping people get the physique that they desire. Nothing feels better than helping others, especially with something that you enjoy dearly. I've been into fitness just about all my life and I plan on doing it for as long as I physically can. 4. Do you work in a â€Å"team† or â€Å"independent† environment? For the most part, work independently, because it is just me and whoever my client is for that time being on a one on one fitness session. It can be also considered a team environment because I am around my coworkers just about my whole shift.There are also other trainers here at my job, and sometimes we are working in the same area. 5. How does this style impact your work (meaning, working with others can be challenging, supportive, helpful, frustrating and working independently can be lonely, empowering, difficult? ) It is a little bit of both so it is fairly balanced, leaning more tow ards independent. I think independently is the best way for this field of work. When I am in the gym I like to focus on my goal or the person am trainings goal in this case. If it was more of a team environment they would likely distract me while am training my trainee. What do you like least about your job? What I least like of the job is a pretty hard question. I love just about everything related to fitness. If I had to say, it would probably be the salary. I could do with a higher salary, but I don t plan on working here forever and eventually I will move on up. 7. What was your major in college? Majored in Nutrition in college. After I finished I got my certification in personal training. After I save up enough from my current job I will then start my own private business and train and diet people for NP competitions. 8.Please describe your career path to this current job. My career path was first working as a sales associate at LA fitness, then after completing my major in nut rition in college, I got certified in personal training and it was easy for me to get the job here because I already worked there. Reflection My career path is to become a personal trainer, and eventually own my own chain of fitness gyms, similar to LA Fitness. It aligns with my purpose because it will give me a chance to help people, and help myself at the same time. It is a win win career path. Nick, the individual I interviewed who is employed atLA Fitness has been employed in that career for 3 years now. He is the head of the fitness department and specializes in personal fitness. The path he took to get to where he is at now is pretty much how I envisioned it myself, even though he is not at his goal yet. Him working already at LA Fitness gave him the opportunity to secure a personal training job there, and also to be the head Of that department. Am now more interested than ever in this field, even though he made a good point about the salary not really being up to par, but I p lan on owning my own gyms so it will increase within time. Interview I interviewed Joe Neal, Deputy Probation Officer III, Mendocino County Adult Probation. I learned a lot about the Probation Officer’s job and Joe during my time interviewing him. Joe started his law enforcement career at a young age. He did not go into much detail about his career start, but did tell me that he eventually ended up being a Juvenile Court Judge. He retired then went to work at the Mendocino County Sheriff’s Department. Due to the stress and shift work there he decided he would have more impact on people if he were in probation. He applied and went through the process and was hired. His goal was to help people turn their lives around and live drug and alcohol free productive lives. Although probation is also a high stress job, Joe said he would choose this profession again if he were younger. I asked him about his daily routine and job responsibilities. Case load seemed to be the majority of his day. Reading reports, petitions and distributing cases to the 65 probation officers in his office. I am told that a pre-sentencing report can take from 8 to 12 hours to complete. There are on average of 25 to over 100 that come in on a daily basis. On average there are from 70 to 100 cases per officer in our county at the adult probation office and 15 to 40 at juvenile probation. When I asked Joe about transfers or advancement, he smiled, almost laughed and simply said â€Å"No way. † He explained to me that in the economic crunch and with a lack of providers in our county, things are at a stand still. When the economy is not so bad, a transfer can usually take place on a case by case basis and are recommended by a supervisor. We got onto the subject on personal rewards of the job. Much like me, Joe takes great pride in helping people start their lives over on a positive drug and alcohol free path. Seeing people accomplish this he says â€Å"Is very rewarding. † I asked him about the hiring process and what it takes to be a probation officer. He asked me if I was sure this is what I wanted to do for a career. He handed me a rather thick packet of papers that describe how the hiring process takes place. In reading through it, I was very impressed at the amount of information the packet contained. The very extensive background checks, the lie detector process and personal life habits. Things like whether you have stolen a pen from work, paying your bills on time and a full credit history. The documents they need to verify your information and pages and pages of information on your previous addresses, jobs and family members, including step. It is started by applying and then applications are sorted by qualifications. There is a written exam with the State. Once the exam is passes, there is an Oral Board interview. A copy of your driving record printout, copy of current driver’s license, sealed copies of college transcripts, copy of your college diploma, social security card, birth certificate, release forms for verification of information provided, and a handwritten autobiographical history. Once that information is verified fingerprinting takes place. When you pass all of the background the next step is to be scheduled for a physical and a psychological exam. An offer of employment is contingent with passing the physical and psychological exam. I got the impression from this packet that if you are not a person who takes the time to keep your life in order, you can’t possibly help others learn how to either. I also noticed during the interview how short most of Joe’s answers were. I asked him why he didn’t elaborate on different questions, he told me that he learned a long time ago to get to the point quickly and you get the best answer from your questions. If they don’t have too much information to compute, you usually get an answer beyond â€Å"just because†. I noticed Joe’s office was very tidy and well organized. I didn’t ask how much time he spends filing or organizing, but with the case loads, I imagine he has to make the time after each task to be prepared for the next duty of the day. As I was walking out, I thanked him for his time and for all of the valuable information he gave me. He then informed me that he is now retiring and his time will be spent â€Å"Eating Bon-Bon’s† I left Joe’s office, headed home and thought about what he had told me. There is a lot of information to store for my future and to meet my goals. In the end, I have decided that, yes, this is in fact what I want to do.