Protostar This is the stage in which the star begins to form after the collapse of the interstellar cloud. It happens in small molecular clouds that can be referred to as dense cores. In the beginning the dense core has a level of balance between its own gravitational forces (self-gravity)‚ and both the magnetic pressure‚ and gas pressure. The self-gravity acts to compress the dense core‚ while the gas‚ and magnetic pressures act to inflate it. The core’s self-gravity will eventually overwhelm it
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ChileFrom 1973 - 1977‚ there was genocide in Chile. The targets were people who believed in the communist government system. The start of it all began on September 11th‚ 1973 when Chilean commander in chief‚ Augusto Pinochet Ugarte commanded the Chilean army and police force to overthrow the current president Salvador Allende. The main reason for the overthrow was because of Allende’s economic plan. With it‚ inflation was rising 1% every day. The only reason the coup was successful at overthrowing
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OCUPATIONAL HEALTH HAZARDS FACING MINE WORKERS (Experience from Anglogold Ashanti mines‚ Geita Gold Mine in Geita Tanzania) By HAMENYA KASASE Introduction Mining works have always been among the most hazardous works that demands the health of many people in the industrial world today. Health and safety of many workers particularly those who work directly in mining production and engineering is always at greater risks and thus requires much attention. This paper describes the prevailing situation
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Introduction Regarding population and geographic extension‚ Chile is a small country with an estimated of 18 million people living in 291‚930 sq. mi.‚ located at the end of the world‚ in the Southern Cone‚ surrounded by Peru‚ Bolivia‚ Argentina‚ and the Ocean Pacific. However‚ it has been somehow relatively worldwide known due to the neoclassical policies applied since the mid-1970s‚ labeled also as neoliberal. Harvey explains neoliberalism as “a theory of political economy practices proposing that
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The New York Times (New York Times‚ 2010)A gold and copper mine caved in ‚ trapping 33 miners in a chamber more than 2300 feet below in August‚ 2010. For about two weeks there were not any type of signs that the miners had survived. Surprisingly a small hole reached the miner’s and they sent up a message telling rescuers they were alive. These miners went on to be trapped below for two months before rescuers could reach them. They were rescued in a specially designed capsule that was a half a mile
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Introduction Chile is a republic located in southwestern South America. On the north side of Chile lies Peru‚ to the east is Bolivia and Argentina‚ and on the south Peru is bounded by the Pacific Ocean. The Archipelagoes Islands extend along the southern coast of Chile from Chiloé Island to Cape Horn. Among these islands are the Chonos Archipelago‚ Wellington Island‚ and the western portion of Tierra del Fuego. Some other islands that belong to Chile include the Juan Fernández Islands‚ Easter Island
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Copper is an element that occurs in minor amounts in the earth’s crust. Estimates of average crustal prevalence are on the order of 0.0058 percent by weight. Deposits considered to be economically recoverable at current market prices may contain as little as 0.5 percent of copper or less‚ depending on the mining method‚ total reserves‚ and the geologic setting of the deposit. Here is the flow sheet on how to process copper from Zenith. Copper Process Flow Sheet: Copper ore is first quarried from
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Chilean Mine Collapse BCOM/275 Chilean Mine Collapse In Chile‚ on August 5‚ 2010‚ a collapse inside a main access tunnel of a mine trapped 33 miners inside (Parry & Retther‚ 2010). The miners were trapped at a depth of at least 700 meters (Weik‚ 2010). There were 32 Chileans men and one Bolivian man trapped in the old gold and coppers mine (Parry & Retther‚ 2010). The miners estimated that they would not be rescued for four months. The miners had to receive emergency food and supplies
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These reforms saw Chile rise from a depressed economy to a great‚ top rank in the South American economy. One of the reforms which led to improvement of Chile economy was the opening of the Chile market to the foreign trade. Chile is a small country which is found away from the business center or where most businesses are carried out‚ due to these there was need to create a market where foreign traders were able to access the market increasing export and imports. By 1974 major changes were made on
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Weekly Journal # 67 What are at least five key points in the articles and the text readings? 1. There are many different types of reinforcements‚ classes of reinforcements. Some of the classes are as follows: edibles‚ activity‚ tangibles‚ social‚ token‚ naturally occurring reinforcers. 2. It is important to know and understand exactly what behaviors you are attempting to reinforce when creating a behavior plan. 3. Teachers must establish contingencies or rules related to the reinforcements
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