History 1A Essay Example | Topics and Well Written Essays - 1000 words

History 1A - Essay Example The narrator argues that slavery especially in Africa had denied him the chance to live peacefully and in harmony with her family members. As Europe grew, the relationship between Africa and Europe came into focus. The description of African religious theories was essential in the evaluation of histography of European academic orientations. The triple religious African heritage, which includes indigenous religion, Islam and Christianity, were the pivot that formed the three main themes of discourse. The accounts describing religion in African or the superficial terms lead to an influence in the perception of philosophers who were enlightened about Africa. In turn, perception about Africa was influenced by progress and reason. The European occupation was often legitimized because of the argument that Christian civilization was introduced, officials in the colonial government realized that changes in African societies may lead to stability loss. The states that he witnessed the sale of slaves to Dutch people while in West Indies. At that time, he was not bought but instead, transported and sold to North America where he was assigned to work in the Virginia plantations doing house chores and light field works. He did not stay for long in time Virginia when a British royal navy lieutenant bought him as a present to his friends in England (Equiano 94) The spread of Islam was neither simultaneous nor uniform, but followed an adaptive and gradual path. However, aesthetic and political influences on the African community are difficult to access. Islamic resistance to representation of animals and people, its interaction with the Africans visual arts was one of the forms of Islam that were accommodated by the local residents. Islam also helped in the reinforcement of the fondness of Africans to geometric design. It was also evident in textile decorations and objects that were crafted. Weaving by the locals was also

Mitochondrial Uncouplers Essay Example | Topics and Well Written Essays - 250 words

Mitochondrial Uncouplers - Essay Example What alternative pathway is being triggered here and why? What other chemical would you expect to see build-up in the cytoplasm of these cells? (2.5 points) In the presence of 2, 4-dinitrophenol, electron transport of electrons to O2 from NADH continuous normally regardless of loss of respiratory control leading to increased oxygen consumption as well as oxidation of NADH. It is the excessive consumption of oxygen that leads to consumption of large amounts of metabolic fuels; increase in glycolysis(El-Zanfaly and Marwa 208). During this process, substrate cycle is triggered in order to dissipate more energy in form of heat. Apart from accumulation of phosphate molecules, the presence of 2, 4-dinitrophenol may also result to accumulation of insulin and triglyceride in the cytoplasm of cells. 2, 4-dinitrophenol causes hyperthermia because it is associated with basal leak of protons which are responsible for the formation of ATP, storage of energy. The loss of thermoregulatory homeostasis as a result of the drug result to excessive dissipation of heat as well as consumption of calories(El-Zanfaly and Marwa 208). The uncoupling protein (UCP) is an exclusive mitochondrial protein for brown fat. This fat plays a very significant role in the transportation of protein responsible for the formation of ATP. In transporting the proteins, this fat enhances dissipation of heat and as a result makes the brown fat mitochondria to be

The Goal Book Report Essay Example for Free

The Goal Book Report Essay Actually Alex’s plant has not been profitable for some time and because of that Bill gives an ultimatum to Alex to turn the plant around in 3 months or else the plant will be closed unless there are visible improvements. Due to the limited amount of time given, Alex almost gives up on the plant until Alex remembers his conversation with Jonah, his college physics professor. They happened to come across each other in the airport during Alex’s business trip. During that time, Jonah asked him several question to analyze his company situation. This conversation then leads Jonah asking Alex, â€Å"What is the goal of your manufacturing company? † Although Jonah didn’t give the answer to Alex but eventually Alex get the answer after rethinking their conversation. Alex realizes that the goal of his company or in fact any business is to make money. After finding out the answer, Alex then decide to contact Jonah one more time to consult further about his company. After contacting Jonah, Alex gets three measurements that can determine the success of a business. The three measurements are throughput, or â€Å"the rate at which the system generates money through sales,† inventory, or â€Å"all the money that system has invested in purchasing things which it intends to sell,† and operational expense, or â€Å"all the money the system spends in order to turn inventory into throughput†. Using these measurements, Alex has a basis to determine if his decisions are helping the plant move towards the goal. The goal of the  plant is to make money, which is characterized by increasing throughput and decreasing inventory and operational expense. Alex decided to meet with Jonah in New York in order to fix their plant problem. But once again, Jonah leaves Alex with another question, what does the combination of dependent events and statistical fluctuations have to do with your plant? During the weekend, Alex went to a hiking trip with his son and got stuck as a ‘troop master’. During the hiking, Alex discovers Alex discovers the importance of dependent events in relation to statistical fluctuations. With this discovery, he also found out that the bottleneck’s speed of production is what determines the speed of the other dependents. Hence, inventory moves very slowly because of statistical fluctuations. Back to the plant, Alex with his team begins their search for their plant’s bottlenecks. Then they found one the machine (NCX-10) and the heat treatment as the source plant’s bottlenecks. Alex invites Jonah to visit his plant in order to solve their bottlenecks problem. Jonah define bottleneck as any resource whose capacity is equal to or less than the demand placed upon it and a non-bottleneck is any resource whose capacity is greater than the demand placed on it. With Jonah’s help, Alex and his team able to solve their bottlenecks problem such as perform the quality control testing before going into the bottleneck, do not produce parts for inventory produce only what is in demand, produce smaller batches to increase productivity for the whole process, etc. One thing that they also learn from Jonah is that an hour lost at a bottleneck is an hour lost to the whole system. So, it is important to keep the bottleneck to keep moving all the times. With these changes in Alex’s plant, they are able to increase their production during the second and third month. With the increase of production in their plant, Alex able to save his plant and he also promoted to Bill peach’s position. Regarding his personal life, Alex described as a dedicated and workaholic employee. His dedication to his work posed some family problems: losing time for his wife aside from her not being used to living at his hometown where there is a big difference from the city life his wife is used to. At one point, Julie, Alex’s wife leaves him because she’s tired of arguing and her attempt to save their marriage. However, while Alex tries to save his plant, Alex also does the same thing with his marriage. II. Things I liked about the book What I liked about the book is that the book very informative and it is really easy to read. I think this book will be one of effective way to learn about management. Because it is the most efficient way to understand the challenges involved in the manufacturing processes. Unlike many books that take complicated ideas and oversimplify them so the ideas lose their meaning, this book simplifies ideas in ways that enhance their meaning by making the ideas easier to see and employ. Another thing that I really like from this author is that he able to turn a relatively boring subject for some people to an exciting read. One more thing that I like is the way the author describe the characters in the story. I think many readers can relate to the characters in the book since what happen in the story is also happening in the real world. And the last one is I liked how the author include Alex personal life problem in the story. I think what the author trying to do is to inform his reader that there must be balance between personal life and work life. You have to balance your personal life and work life, because eventually they will flow in and out of each environment. III. Critique of the book I don’t think I have any critique for the book since the book really helps me in understanding how management really works. One thing that I might complain might be some typo errors in the book. IV. Real life example From the book, we can see that the concept that Jonah gave can be apply not only for business problem but also problems that we deal within our daily life. I think we can definitely see it from the book during the hiking trip. I think what we can do is asking ourselves with the question of â€Å"what is my goal in life, work, study and other things that we do? † As a student, I think I can apply some of the concept in my studying. When I took a subject, the first thing that I want to know is what is my goal in taking this subject? After knowing that, if ever I encounter some problem like a probability of failing the subjects, I have to identify the source of my problem. Knowing the source of my problem will make it easier for me to decide how or what can I do in order to fix my problem.

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Introduction: Renewable energy is one of energy resources that generate from natural resources and always regenerate and never run out. Around 16% of global energy used in the world come from the renewable energies. Many of renewable energies projects arise in rural and remote areas to contribute in developed these areas. History: The story of renewable energy back to old ages , actually any new energy found it become alternative to the last one was used . for instance ,when oil discover it’s became alternative to the coal, which people was use it for cooking and heating .then in 19th petroleum became an substitutional to the oil to generate electricity. Currently we defined the renewable energy as the energy comes from natural resources and never run out . Types of renewable energy: 1) Solar Energy: Solar energy depends on the energy comes from solar radiation that utilized for produce electricity or heating. The electricity generates by either photovoltaic or heat engines. There are two types of solar technologies. The first is passive solar techniques which use phot...

Look again at the end of the Crucible Essay

He tells the others who are to hang to show no fear. â€Å"Proctor: Give them no tears! Tears pleasure them! Show a stony heart and sink them with it! The audience are aware that Abigail and proctor had an affair but when John tells Abigail that he does not wish to see her again she tries to get her own back by accusing Elizabeth Proctor of witchcraft. She does this also to try and get proctor on his own so then they will dance on Elizabeth’s grave. Her plans back fires when John admits to the court that they had an affair. â€Å"Proctor: Mark her! Now she’ll suck a scream to stab me with, but- Danforth: You will prove this! This will not pass! Proctor: I have known her. † â€Å"Proctor: She thinks to dance with me on my wife’s grave! † Through this part in the court Abigail shows that she has authority in the town by shouting at the head of the court to try and change his mind, he replies by saying that he trust her over proctor. â€Å"Abigail: I have been hurt, Mr Danforth; I have seen my blood runnin’ out! I have been near to murdered every day because I’ve done my duty pointing out the devils people and this is my reward! To be mistrusted, Denied, Questioned like a- Danforth: Child I do not mistrust you-. † This causes tension, as you do not know what will happen to either Proctor or Abigail when the truth is found out. There is a conflict, which gets stronger as you go through the book. This conflict is between Hale and the court. When the court is made hale is for it and recons it is a good idea. The conflict starts when he is at the Proctors house and he hears of Rebecca Nurse’s arrest. â€Å"Hale: Believe me Mr Nurse if Rebecca be tainted, then nothings left to stop the whole green world from burning. † He then questions what the court is doing by searching for a poppet in the Proctors house. He then sides with Proctor again as he asks Parris if â€Å"every Defence is an attack upon the court? † In the very end his completely against the court and is trying to save Proctors life. â€Å"Hale: I have gone this three month like our lord into the wilderness. I have sought a Christian way, for damnation’s doubled on a minister who counsels men to lie. Hathorne: It is no lie, you cannot speak of lies. Hale: It is a lie! They are innocent! † This causes tension as Hale is a trusted figure and you don’t know if he is for or against something and if he will be able to change proctors mind on confessing. Hale tries to prevent the hangings by telling the court what the town is like when so many have died. â€Å"Hale: Excellency, there are orphans wandering from house to house; abandoned cattle bellow on the highroads the stink of rotten crops hangs everywhere, and no man knows when the harlots cry will end his life- and you wonder yet if rebellion’s spoke? Better you should marvel how they do not burn your province! There also many tense parts that are not in the conflicts, such as the part when Abigail is with the other girls in the bedroom and threatens them that if they talk then they will die. â€Å"Abigail: Mark this if either of you breath a word, or edge of a word, about the other things, and I’ll come to you in the in the black of some terrible night and I will bring a pointy reckoning that will shudder you. † This is tense because you realise that she has the power to kill anyone including her own friends. Also when Hale is questioning Tituba you don’t know how much she is going to say about what happened in the wood. â€Å"Hale: who came to you with the devil? Two? Three? Four? How many? Tituba: There was four. There was four. † This causes tension because it is fast paced which adds a bit of excitement as well. Arthur miller uses the conflicts between different characters or a group of characters to cause dramatic tension extremely well, as he gives whole scenes to get to know the characters and then brings them together in the last scene. The reason why this helps cause dramatic tension is because as we know the characters, we expect them to do something but they end up going against it, like in the court when we expect Elizabeth to tell the truth, she tells a lie to save her husband, but ends up getting him killed. I think that this also helps to make the ending a lot more satisfactory, by ending many lives of characters we know and have heard express there feelings. He also resolves the main conflict between Elizabeth and Johns marriage, which was dramatised in act two, so every thing turned out well, and if John had stayed alive many more people would have probably died as a result of revenge, anger, the want of power and jealousy. It was good to be told what happened after the book ended because I was wondering what had happened to Abigail and if Elizabeth was hung after the baby had been born, which had kept her from being hung for a year, was born. Show preview only The above preview is unformatted text This student written piece of work is one of many that can be found in our GCSE Arthur Miller section.

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What Is the Rydberg Formula and How Does It Work

The Rydberg formula is a mathematical formula used to predict the wavelength of light resulting from an electron moving between energy levels of an atom. When an electron changes from one atomic orbital to another, the electrons energy changes. When the electron changes from an orbital with high energy to a lower energy state, a ​photon of light is created. When the electron moves from low energy to a higher energy state, a photon of light is absorbed by the atom. Each element has a distinct spectral fingerprint. When an elements gaseous state is heated, it will give off light. When this light is passed through a prism or diffraction grating, bright lines of different colors can be distinguished. Each element is slightly different from other elements. This discovery was the beginning of the study of spectroscopy. Rydbergs Equation Johannes Rydberg was a Swedish physicist who attempted to find a mathematical relationship between one spectral line and the next of certain elements. He eventually discovered there was an integer relationship between the wavenumbers of successive lines. His findings were combined with Bohrs model of the atom to create this formula: 1/ÃŽ » RZ2(1/n12 - 1/n22) where ÃŽ » is the wavelength of the photon (wavenumber 1/wavelength)R Rydbergs constant (1.0973731568539(55) x 107 m-1)Z atomic number of the atomn1 and n2 are integers where n2 n1. It was later found that n2 and n1 were related to the principal quantum number or energy quantum number. This formula works very well for transitions between energy levels of a hydrogen atom with only one electron. For atoms with multiple electrons, this formula begins to break down and give incorrect results. The reason for the inaccuracy is that the amount of screening for inner electrons for outer electron transitions varies. The equation is too simplistic to compensate for the differences. The Rydberg formula may be applied to hydrogen to obtain its spectral lines. Setting n1 to 1 and running n2 from 2 to infinity yields the Lyman series. Other spectral series may also be determined: n1 n2 Converges Toward Name 1 2 → ∞ 91.13 nm (ultraviolet) Lyman series 2 3 → ∞ 364.51 nm (visible light) Balmer series 3 4 → ∞ 820.14 nm (infrared) Paschen series 4 5 → ∞ 1458.03 nm (far infrared) Brackett series 5 6 → ∞ 2278.17 nm (far infrared) Pfund series 6 7 → ∞ 3280.56 nm (far infrared Humphreys series For most problems, youll deal with hydrogen so you can use the formula: 1/ÃŽ » RH(1/n12 - 1/n22) where RH is Rydbergs constant, since the Z of hydrogen is 1. Rydberg Formula Worked Example Problem Find the wavelength of the electromagnetic radiation that is emitted from an electron relaxes from n 3 to n 1. To solve the problem, start with the Rydberg equation: 1/ÃŽ » R(1/n12 - 1/n22) Now plug in the values, where n1 is 1 and n2 is 3. Use 1.9074 x 107 m-1 for Rydbergs constant: 1/ÃŽ » (1.0974 x 107)(1/12 - 1/32)1/ÃŽ » (1.0974 x 107)(1 - 1/9)1/ÃŽ » 9754666.67 m-11 (9754666.67 m-1)ÃŽ »1 / 9754666.67 m-1 ÃŽ »ÃŽ » 1.025 x 10-7 m Note the formula gives a wavelength in meters using this value for Rydbergs constant. Youll often be asked to provide an answer in nanometers or Angstroms.