The Spooky World Of Quantum Biology | h+ Magazine Michael Garfield The new science of quantum biology is teaching us about how the actual behavior of evolution is governed by disconcertingly spooky processes – time travel being one of them. Will quantum computation finally be realized by biomimicry, in organic systems? Evolution is the new (old) computation...and we're about to take the reins. One hundred and fifty years ago, paleontologist Thomas Henry Huxley (an autodidact and philosopher who coined the term “agnostic” and was known as “Darwin’s Bulldog” for his passionate defense of natural selection) asserted that humankind would eventually take the processes of evolution into our own hands. The premise is simple. Quantum computation, a science still in its infancy, promises swiftness and efficiency vastly superior to anything possible with conventional silicon chips. It’s a promising avenue for people with big plans for strong AI or virtual reality. What does this all mean?
National Library of Medicine - National Institutes of Health Scientists stop the ageing process (ABC News in Science) Clean bill of health: Scientists have shown that clearing damaged protein from the liver helps stop age decline in the organ (Source: iStockphoto) Scientists have stopped the ageing process in an entire organ for the first time, a study released today says. Published in today’s online edition of Nature Medicine, researchers at the Albert Einstein College of Medicine at Yeshiva University in New York City also say the older organs function as well as they did when the host animal was younger. The researchers, led by Associate Professor Ana Maria Cuervo, blocked the ageing process in mice livers by stopping the build-up of harmful proteins inside the organ’s cells. As people age their cells become less efficient at getting rid of damaged protein resulting in a build-up of toxic material that is especially pronounced in Alzheimer’s, Parkinson’s and other neurodegenerative disorders. By contrast, the livers of normal mice in a control group began to fail. Read on… Like this: Like Loading...
Home Effet Baldwin Un article de Wikipédia, l'encyclopédie libre. L'effet Baldwin est un corollaire à la théorie de l'évolution mise de l'avant en 1896 dans un livre intitulé Un nouveau facteur en évolution par James Mark Baldwin, qui propose un mécanisme de sélection spécifique sur les capacités d'apprentissage. Selon cette théorie, le comportement durable d'un individu ou d'un groupe influence sa capacité d'apprentissage et ne serait pas limité aux seuls facteurs génétiques. Démonstration[modifier | modifier le code] Par exemple, imaginons des oiseaux qui doivent faire face à un nouveau prédateur. La tolérance du lactose chez les humains est souvent prise comme exemple pour illustrer cette théorie. Cette hypothèse a été et reste controversée en biologie. Notes et références[modifier | modifier le code] ↑ An Introduction to Genetic Algorithms, Melanie Mitchell, MIT Press, 1999, page 66. Bibliographie[modifier | modifier le code] Pierre Jolivet, « Le principe de Baldwin ou l’effet Baldwin en biologie.
Implantes - Clinica Dental Cervera (Benamara) Implantes La colocación de Implantes se ha convertido en una de los tratamientos más solicitados hoy en día, con el se consigue una total reconstrucción de la dentadura, sin necesidad de llevar las prótesis de "quita y pon", ni tallar los dientes sanos para colocar un puente. Los Implantes, además de proporcionar una solución estética, tienen una función mucho mas importante: que no se produzca un deterioro de la encía y hueso que llevaría a la pérdida de hueso y podría afectar a otros dientes. Un Implante es una raíz artificial, hecha de titanio, que se introduce en el hueso donde no hay diente, su función es la de hacer de pilar o raíz. Sobre el implante podemos sujetar todo tipo de prótesis, ya sean completas, de un solo diente o puentes de más de una pieza. Estudio Inicial y Requisitos Necesarios La colocación de implantes requiere cumplir unos requisitos mínimos. Colocación del Implante La colocación del implante solo requiere anestesia local, igual que si fuera un empaste.
Fossil suggests new hominid species: Stone Age cavemen 'Red deer people' discovered in China 'Red deer people' lived 14,500-11,500 years ago in AsiaPreviously thought that homo sapiens had continent to themselves'Highly unusual' mixture of ancient and modern - could be new speciesCould also be relic of early migration out of Africa which died out By Rob Waugh Published: 15:00 GMT, 14 March 2012 | Updated: 09:27 GMT, 16 March 2012 Four Stone Age people found in caves in China could be a entirely new species of humanoid - and the discovery 'opens a new chapter' in the history of evolution, say archaeologists. The fossils, found in two caves, belong to a previously unknown Stone Age people and have a 'highly unusual' mixture of ancient and modern features. Named the 'Red Deer people' because of the animals they hunted and dating from between 14,500 to 11,500 years ago, they are the youngest humanoid fossils to be found in Asia. Previously it had been thought that early humans had little competition in the continent. But the new find suggests this may not have been the case.
Scientists discover virus that kills all grades of breast cancer ‘within seven days’ By Stephen C. WebsterFriday, September 23, 2011 16:48 EDT Scientists at the Penn State College of Medicine said this week they have discovered a virus that is capable of killing all grades of breast cancer “within seven days” of first introduction in a laboratory setting. The virus, known as adeno-associated virus type 2 (AAV2), is naturally occurring and carried by up to 80 percent of humans, but it does not cause any disease. Researchers learned of its cancer-killing properties in 2005, after Penn State scientists observed it killing cervical cancer cells. When combined in a lab recently, AAV2 eradicated all the breast cancer cells “within seven days,” according to researchers. “If we can determine which viral genes are being used, we may be able to introduce those genes into a [therapy],” explained Penn State research associate Samina Alam. The Center for Disease Control says that breast cancer is the most common type of cancer affecting American women. Copyright 2011 The Raw Story
How Evolution Happens Strange organism has unique roots in tree of life - Technology & science - Science - LiveScience Talk about extended family: A single-celled organism in Norway has been called "mankind's furthest relative." It is so far removed from the organisms we know that researchers claim it belongs to a new base group, called a kingdom, on the tree of life. "We have found an unknown branch of the tree of life that lives in this lake. The organism, a type of protozoan, was found by researchers in a lake near Oslo. In this study, published March 21 in the journal Molecular Biology Evolution, the researchers were able to grow enough of the protozoans, called Collodictyon, in the lab to analyze its genome. "The microorganism is among the oldest currently living eukaryote organisms we know of. Mix of features What it looked like was small. The organism also has characteristics usually associated with protists and amoebas, two different branches. "We are surprised" because the species appears to be unique, said study researcher Dag Klaveness, also of the University of Oslo.
MycoBank, the fungal website Flowers in Ultra-Violet The compilation of species will continue to be updated at irregular intervals. All species listed here have been documented, and links are added whenever I can find spare time for updating. These images are made for illustrative purposes, not as artistic statements per se. However, there are lots of food for thought in the convoluted ways Nature expresses itself, so for once the artist can step backand let the subjects speak for themselves. "Das Ding an Sich" to paraphrase Kant, or Eigenvalue of Nature. If you are unfamiliar with the botany, just select any species indicated as having a "strong" response to learn how this looks. However, not all species have the typical bull's-eye UV pattern, which may be confined to symmetrical flowers. The UV range of the spectrum has no predefined colours, so we are free to assign any colour we like. UV fluorescence may be a common trait to most flowers, but might be of temporary occurrence for parts of the flower.