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INTRODUCCIÓN El ser humano, con el pasar de los tiempos, se ha impulsado por tratar de entender sus propios orígenes y sus composiciones, así como de todo lo que nos rodea. Con la ayuda de la ciencia, hemos logrado conocer los distintos tipos de materia que forman parte tanto de nuestra vida como de la vida de los demás seres vivos que nos rodea, es decir nuestro ecosistema. Gracias a los avances de la química y física, el ser humano se ha encaminado dentro de la sabiduría, permitiendo descubrir

IONES  Sodio (Na+) y Potasio(K+) Se encuentran distribuidos por todo el organismo, están relacionados. Su proporción depende el mantenimiento de constantes fisiológicas vitales como la presión osmótica, equilibrio electrónico, etc. Ayudan a que el medio iónico este proporcionado para reacciones enzimáticas, contribuyen también a regular el potencial de membrana asi como también intervienen en la conducción del impulso nervioso y la contracción muscular. El sodio se encuentra en el medio extracelular

ARQUITECTURA DEL ORDENADOR Historia de la computación La computadora como la conocemos hay en día, es el resultado de la evolución del aporte de ideas que varias personas realizaron para obtener un artefacto que ayudara al hombre a realizar cálculos complejos para ahorrar tiempo, esfuerzo y dinero. Comenzando desde el ábaco, que aunque no se lo puede considerar una computadora, nos ayudaba a realizar cálculos matemáticos. En el siglo XVll, el francés Blaise Pascal inventó la pascalina, una máquina

You admire the chocolate bar in your hand, mulling over the years of memories it inspires. You love everything about this bar, from its infallible solidity to the sleek silver letters spelling out H-E-R-S-H-E-Y-S across its wrapper. In your eyes, a company that creates such wonderful products can do no wrong. But you might think differently if you knew what went into the making of your chocolate bar. As producers of more than half the world’s cocoa beans, the Western African countries of Ghana and

The Mighty Handful During nineteenth century, there were five major players who worked together to establish the unique and distinct sound that is Russian classical music. Mily Balakirev, Cesar Cui, Modest Mussorgsky, Nikolai Rimsky-Korsakov and Alexander Borodin. The five composers all lived in Saint Petersburg, Russia, and worked together to created amazing works of music from 1856 to 1870. The Mighty Handful got their name from an article entitled Mr. Balakirev’s Slavic Concert, by acclaimed

The Effects of Child Labor in the Chocolate Industry: December 6, 2015, was an important day for many Americans, as it marked the 150th year since the abolishment of slavery when the U.S. authorized the 13th Amendment to the Constitution to end what can be described as the darkest chapter of American history. Many in Western Society seem to be unaware of the contemporary slavery still plaguing many developing countries, particularly involving children. The 2010 documentary film called The Dark Side

Intellectual to electrical engineering The Negritude By the end of the 19th century, most of Africans were living under some form of European colonial domination. The history of Africa and its Diaspora was dismissed as insignificant at best, inexistent at worse. Black cultures were ridiculed, stereotyped, and scorned. So the concept of Negritude emerged as the expression of a revolt against the historical situation of French colonialism and racism. Negritude was both a literary and ideological

A) Chevron (Texaco) 1) Description The first case that we are going to talk about is an American company from Texas called Chevron. Chevron is an oil company that had started to drill for oil in South America, while this company was in South America; they developed very poor environmental skills (ChevronToxico, 2014). While chevron was in Ecuador they used cost cutting techniques, and under developed technology (ChevronToxico, 2014). These cost cutting techniques that chevron had used only saved

“The Dark Side of Chocolate” is a documentary that explores the underlying issues prevalent in the cocoa trade. For most first world countries chocolate is seen as an accessible treat, however in third world countries, the production of cocoa creates social issues that must be eliminated. Cocoa trade is one of the largest industries in West African countries, but the issues that arise from such trade do more harm than good. The cocoa plantations are trafficking humans to work on their plantations

Both Ghana and the Ivory Coast have been colonized in the 19th and 20th century, and both managed to gain their independence peacefully. After gaining their independence Ghana and the Ivory Coast were seen as economic and political models for African countries but facts and statistics from today will show that Ghana has emerged as one of Africa’s most stable democratic countries meanwhile the Ivory Coast is only starting to recover from its last civil war. How can two neighboring countries who have