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Search results 25331 - 25340 of 30573 matching essays
- 25331: Slavery - Causes
- ... decreasing population combined with a need for a labor force, led colonists to believe that African slaves were the most efficient way to acquire a labor force that would satisfy their needs. Before the 1680's, Indentured Servitude was the primary source of labor in the newly developed colonies. After the 1680's, the population of the Indentured Servants decreased, exponentially. Their were a number of different reasons why the population of Indentured Servents had decreased. The indentured servents were running away from their temporary masters, to find ... society was where the land was easy to find, while the labor was most scarce. Indentured servitude, was a form of labor which was declining, and the need for labor increased rapidly. In the 1600's, when tobacco was founded by John Rolfe, tobacco became the main source of income for most of the colonists. The economic prosperity of the colonies was primarily dependent on the amount of tobacco produced. ...
- 25332: Involvement of K+ in Leaf Movements During Suntracking
- ... Crotalaria pallida, exhibit diaheliotropic movement. C. pallida is a woody shrub native to South Africa. Its trifoliate leaves are connected to the petiole by 3-4 mm long pulvinules (Schmalstig). In diaheliotropic movement, the plant’s leaves are oriented perpendicular to the sun’s rays, thereby maximizing the interception of photosynthetically active radiation (PAR). In some plants, but not all, his response occurs particularly during the morning and late afternoon, when the light is coming at more of an ... sun. Many plants that exhibit diaheliotropic movements also show paraheliotropic response as well. Paraheliotropism minimizes water loss by reducing the amount of light absorbed by the leaves; the leaves orient themselves parallel to the sun’s rays. Plants that exhibit paraheliotropic behavior usually do so at midday, when the sun’s rays are perpendicular to the ground. This reorientation takes place only in leaves of plants that are capable of ...
- 25333: Descarte 2
- ... sure that we are not the playthings of evil demons? These questions have been discussed by many philosophers in the past and still we do not have a proof that we are not some demon’s plaything. Yet, at least two prominent philosophers, René Descartes and John Locke believed there are ways to prove that we are not brains in vats. At one point in his philosophy, Descartes reflected that perhaps ... circular because Descartes uses his power of reason to establish a condition without the using of reason which made the argument unjustified and untrustworthy. As a result, Descartes was not able to refute the skeptic’s argument. On the other hand, Locke begins his philosophical examination of knowledge by trying to refute the claim that some of our knowledge is original, in the sense that it comes from ideas which are ... 2) Because nothing cannot produce anything then there has to be something since eternity. (3) And the thing must be all knowing and powerful. Therefore, there must be a God because it created me . Locke’s argument about God seems weak because this conclusion is quite dubious on the grounds that the only thing he need is the existence of himself. But even if he evoke this being as the ...
- 25334: Determination of An Unknown Amino Acid From Titration
- ... of An Unknown Amino Acid From Titration Abstract Experiment 11 used a titration curve to determine the identity of an unknown amino acid. The initial pH of the solution was 1.96, and the pKa’s found experimentally were 2.0, 4.0, and 9.85. The accepted pKa values were found to be 2.10, 4.07, and 9.47. The molecular weight was calculated to be 176.3 while ... HCl stock solution and another buret was filled with 0.100 M NaOH. A pipet was used to add 25.00 mL of the unknown amino acid solution to a 100-mL beaker. The solution’s initial pH was established to be 1.96 by the pH meter. The electrode was left in 100-mL beaker with the unknown amino acid solution. In the accurate titration curve, the acid was added ... from the uncertainty, because it contained only two pKa values. However, after examining the pKa values of the unknown, it was apparent that they were remarkably similar to those of glutamic acid, hydrochloride. The unknown’s pKa values were 2.0, 4.0, and 9.85, while the glutamic acid’s pKa values were 2.10, 4.07, 9.47. At this point, the identity of the amino acid was ...
- 25335: Cobalt
- Cobalt My report is about the element Cobalt. Cobalt is the 27th element on the periodical table and has an atomic number of twenty-seven. It has a symbol of Co. Cobalt¹s atomic weight is 58.9332. It has a melting point of 1,490š C. and a boiling point of 2,900š C. Cobalt looks almost exactly like iron and nickel. Cobalt is between iron and nickel on the periodical table and found in only . 001-.002 percent of the earth¹s crust. Cobalt was first found in the Harz Mountains. People in the silver mines dug up arsenic cobalt ores. Then, because they thought the ores contained copper, heated the ores releasing arsenic trioxides. Cobalt was ... cobalt, chromium, tungsten, and molybdenum. This alloy is extremely hard and keeps its hardness at extreme temperatures. It has many uses: cutting tools are made of it along with gas turbines. Zaire is the world¹s largest producer of cobalt with 65% of the world¹s reserve. Cobalt is a common trace element found in food. It is a component of vitamin B12. It is important to our health. But ...
- 25336: "How Is Helium Produced?"
- ... a commercial scale in the USA and Poland. In these areas natural gas contains a relatively high concentration of Helium which has accumulated as a result of radioactive decay of heavy elements within the earth's crust. Helium is supplied to distribution centres throughout the world in liquid form in large cryogenic containers. The Helium is filled into liquid containers, gas cylinders and cylinder packs as necessary. History of Helium Production ... purification plant. This plant went into operation in 1929 at Amarillo, Texas. Demand increased significantly during World War II and four more plants were built, including the Exell, Texas plant, which is now the Bureau's only operating plant. Private helium operations followed passage of the Helium Act Amendments of 1960 (P.L. 86-777) which authorized the Secretary of the Interior (authority delegated to the Bureau of Mines) to enter ... 40 million) and establish this as debt in the Helium Fund to which subsequent borrowing would be added. The Act stipulated that the Bureau of Mines set prices that would cover all of the program's costs, including debt and interest, and provided a period of 25 years to pay back the debt (with a 10-year extension to 1995). In addition, federal agencies and contractors were required to buy ...
- 25337: For the White Man, Of the White Man, and By the White Man
- ... everyone else. With ever increasing segregation, it was only a matter of time before blacks would demand equal rights, and that is what spawned the civil rights movements. The civil rights movement in the 60^-s was a major event in U.S. history for men and women, black or white. Without the Reconstruction period, however, Michigan State University might be an all black segregated school. Blacks had the right to ride in the front of the buses ... the pivotal point in this countries history for social equality. What our forefathers fought for in the American Revolution was freedom form British rule. The Civil War was fought mainly for the freedom of slaveowner^-s rule. At some point in between those two periods America forgot what it was like to be ruled without choice. Today, after the civil rights laws, the U.S. seems to be a more ...
- 25338: The Great Depression
- ... percent. Private construction investment went from $6.6 billion in 1929 to $1.3 billion in 1932. Overall manufacturing was 54 percent of what was in 1929. Automobiles were created at 20 percent of 1932's, and steal was at 12 percent of 1929. Farmer's income slid from $12 billion in 1929 to $5 billion in 1932., but the farmer's mortgages continued to escalate. 70,000 banks went under before the Great Crash in 1929, and 9,000 more went under from 1929 to 1932. Marriages were down 250,000 from 1929 in 1932. ...
- 25339: Differences Between North And
- ... rules. They began to meet regularly after King James I revoked the Virginia Charter in 1619. With the need for additional taxes, the assemblies were forced to meet more frequently and regularly. In the 1650’s, the assembly council ended up splitting up into two chambers, the House of Burgesses and the Governor’s Council. There were two main products that made up the Southern colony's economy. One of them being tobacco and the other product being rice. Tobacco was the most domineering product in the South. Almost everything depended on the sale and price of the tobacco market. The ...
- 25340: Discourse Analysis
- ... text is its purpose for its readers. Every text has a purpose. Texts such as the New York Times article, as well as periodicals, exist to amuse as well as educate. However, if the article's appeal is low, it will be disliked regardless of the quality of its academic matter. Therefore the author must strive to excite as well as educate the reader. To achieve this, the author must use ... using words such as "adage" and "proclivity", it is not specific to the field of psychology. This choice of unspecific vocabulary is logical so that the non-expert audience can understand the article. The document's sentence structure is fairly complex, using very long complex and compound sentences almost exclusively. Passive voice is used for the entire document, thus giving it the tone of a research thesis. Additionally, the whole article ... clearly breaking it into parts. In addition, figures such as tables eliminate any confusion that may arise by writing it out. For example, in the sample IS document, there is no question as to who's responsible for what tasks when it is laid out in the "Subtasks, Roles, and Responsibilities" table . There are many differences in the New York Times article and the American Management Systems IS document. Each ...
Search results 25331 - 25340 of 30573 matching essays
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