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Este texto reemplaza un manuscrito no publicado que fue preparado por el primer autor en 1999 y que fue multiplicado de manera informal en la Sede Palmira de la Universidad Nacional de Colombia. En general, esta versión cubre los mismos aspectos del manuscrito original, pero amplía y actualiza los temas inherentes a la relación planta-insecto, el muestreo de poblaciones, el papel de los insectos como vectores de enfermedades de plantas, el control...
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¿Qué hay en la belleza y por qué nos importa tanto? Desde tiempos inmemoriales los humanos han acudido a tinturas, pócimas, filtros y otros artilugios para ser mirados y admirados. Los egipcios, por ejemplo, delineaban sus párpados con kohl y las mujeres usaban sombras verdes y azules, colorete en las mejillas y carmín de un rojo intenso en los labios. De ese modo no sólo cautivaban a sus medias naranjas, también obtenían la protección de...
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DNA of the Gods is an Anthropologist examination of human intelligence. The B4'5 Haplo group indicates a traversal of the world's oceans in deep antiquity 50,000 years ago. The Neanderthals have tested positive for the human speech locus at 300, 000 years ago. Find the discovery of the speech gene locus, and the deep roots never mixing with the apes in the human genome. Archaeology indicates a deep antiquity to human intelligence. What are the OoPArts...
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An ET Scientist on the Mission of Jesus follows Prof. Hawkins and his ET scientist friend, Zeus, who previously examined the records of the life, death and resurrection of Jesus. They had concluded that Jesus probably did not die on the cross but fell into a coma and was mistakenly thought to be dead. After coming out of the coma after three days, Jesus was assumed to have experienced resurrection. Having determined that Jesus did not die on the cross...
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Yes, there really is a brain that destroys itself. And its a brain just like the one in your head. But not every one of the brains like yours will ultimately destroy itself. However, if the destroying begins, then the signs of this are described in what neurologists take to be the symptoms of neurodegenerative diseases. Those most often encountered are Alzheimers and Parkinsons disease, but there are many otherssurprisingly many, as explained here....
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Human fertility is the capability of producing healthy offspring through normal sexual activity. There a lot of methods for a successful fertilization. Some of them are: fertility drugs, artificial insemination, donor sperm, in vitro fertilization, donor eggs and more. This will depend in the health, genetic and lifestyle of the man and the woman. A pamphlet would be great for a biology student because it will give orientation for their future fertilization...
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In 1944, the Nobel Prize—winning physicist Erwin Schrödinger published a groundbreaking little book called What Is Life? In fewer than one hundred pages, he argued that life was not a mysterious or inexplicable phenomenon, as many people believed, but a scientific process like any other, ultimately explainable by the laws of physics and chemistry.
Today, more than sixty years later, members of a new generation of scientists are attempting to create...
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¿Qué tiene la ciencia para decir sobre los monstruos que nos han aterrado por generaciones, desde los clásicos Frankenstein y Drácula hasta los vampiros enamorados de la saga Crepúsculo? En la variedad está el susto: bajo el ropaje de malvadas brujas en los cuentos infantiles o como muertos vivos que acechan a la vuelta de la esquina, los monstruos viven con nosotros, nos atraen, nos espantan, nos reafirman como humanos. Es que, justamente,...
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Human beings evolved in a tribal environment. Over the millennia, our brains have become adept at fostering social networks that are the basis of group cohesion, from the primary family unit to the extended associations of clans, villages, cities, and nations. This essential social component of our behavior gave the human species distinct survival advantages in coping with the challenges of an often-hostile environment. This book examines the many...
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How many eyes does a spider have? How do you grow seedless plants? Could bacteria survive near nuclear reactors? Can you name animals that travel in coalitions, parliaments and mischiefs? These are just a few of the interesting questions youll find answers to in Little Facts of Life. Enjoy high-interest, paragraph-long readings that deal with topics from the plant kingdom, animals, genetics, ecology and the microscopic world. Learn about a fungus...
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Los alimentos frescos pueden tener un alto riesgo de contaminación por factores biológicos, físicos y químicos, desde su desarrollo en los campos de cultivo hasta su llegada al consumidor final, por ello es importante determinar las pérdidas por causas primarias y secundarias, las cuales se presentaron en el capítulo 1, para tomar medidas de control en cada una de las etapas del proceso productivo. Teniendo en cuenta que la mayoría de los productores...
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In his new book The Strange Case of the Rickety Cossack, human paleoanthropologist Ian Tattersall argues that a long tradition of "human exceptionalism" in paleoanthropology has distorted the picture of human evolution. Drawing partly on his own career-from young scientist in awe of his elders to crotchety elder statesman-Tattersall offers an idiosyncratic look at the competitive world of paleoanthropology, beginning with Charles Darwin 150 years...
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Can science and art find common ground? Are scientific and artistic quests mutually exclusive? In this new book, neuroscientist Eric Kandel, whose interests span the fields of science and art, explores how reductionism - the distillation of larger scientific or aesthetic concepts into smaller, more tractable ideas - has been used by scientists and artists alike to pursue their respective truths. Their common use of reductionist strategies demonstrates...
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El 12 de diciembre de 2005 fueron organizadas en la ciudad de Valencia por la Conselleria de Territori i Habitatge y el Instituto Mediterráneo para el Desarrollo Sostenible (IMEDES), conjuntamente con una serie de instituciones que prestaron su colaboración, unas jornadas denominadas Los Residuos Urbanos en la Comunidad Valenciana: Estado de la Cuestión. Este título respondía a la necesidad de integrar en una misma plataforma de debate la intervención...
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Clear and penetrating presentation of the basic principles of scientific research from the great French physiologist whose contributions in the 19th century included the discovery of vasomotor nerves; nature of curare and other poisons in human body; functions of pancreatic juice in digestion; elucidation of glycogenic function of the liver.
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Known as "Darwin's Bulldog" for his impassioned defense of evolutionary theory, Huxley published this, his most famous book, just a few years after Darwin's The Origin of Species. Unlike Origin, this book focuses on human ancestry and offers a concise, nontechnical survey of mid-19th-century knowledge about primate and human paleontology and ethology.
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