Communicating at an unknown rate. Electron Transport Chain. Physics Flash Animations - StumbleUpon. We have been increasingly using Flash animations for illustrating Physics content. This page provides access to those animations which may be of general interest. The animations will appear in a separate window. The animations are sorted by category, and the file size of each animation is included in the listing. Also included is the minimum version of the Flash player that is required; the player is available free from The categories are: In addition, I have prepared a small tutorial in using Flash to do Physics animations. LInks to versions of these animations in other languages, other links, and license information appear towards the bottom of this page. The Animations There are 99 animations listed below.
Other Languages and Links These animations have been translated into Catalan, Spanish and Basque: En aquest enllaç podeu trobar la versió al català de les animacions Flash de Física. Many animations have been translated into Greek by Vangelis Koltsakis. Psychopathic Traits Linked to Brain Reward System - NIH Research Matters. March 29, 2010 People who scored high on a test that measures impulsive and antisocial traits had exaggerated brain responses to certain “rewards,” like winning money or taking stimulant drugs.
The new study provides evidence that a dysfunctional brain reward system may underlie vulnerability to a personality disorder known as psychopathy. Impulsive and antisocial personality traits correlate with amphetamine-induced dopamine release (red and yellow) in the brain. Image by Buckholtz et al. Psychopathy is characterized by a combination of superficial charm, manipulative and antisocial behavior, impulsivity, blunted empathy and shallow emotional experiences. Many studies of psychopathy have focused on the emotional and interpersonal aspects of the disorder, like lack of fear and empathy. In one experiment, the researchers used positron emission tomography (PET) to image the brain’s dopamine response when participants received a low oral dose of amphetamine.
God is in The Neurons - StumbleUpon. Amazon. Amazon. The Evolution of the Human Eye. The Evolution of the Human Eye Sean D.
Pitman M.D. © May. 2001 Updated October 2008 No discussion of evolution seems complete without bringing up the topic of the human eye. Numerous Gradations Obviously, Darwin was not crazy. Reason tells me, that if numerous gradations from a simple and imperfect eye to one complex and perfect can be shown to exist, each grade being useful to its possessor, as is certainly the case; if further, the eye ever varies and the variations be inherited, as is likewise certainly the case and if such variations should be useful to any animal under changing conditions of life, then the difficulty of believing that a perfect and complex eye could be formed by natural selection, though insuperable by our imagination, should not be considered as subversive of the theory.1 This scenario certainly seems reasonable.
A Closer Look The question now of course is, how could such a system evolve gradually? The Nilsson and Pelger Theory of Eye Evolution Next, a lens is needed. CosmoLearning Biology - StumbleUpon. The Mirror Equation. Ray diagrams can be used to determine the image location, size, orientation and type of image formed of objects when placed at a given location in front of a concave mirror.
The use of these diagrams was demonstrated earlier in Lesson 3. Ray diagrams provide useful information about object-image relationships, yet fail to provide the information in a quantitative form. While a ray diagram may help one determine the approximate location and size of the image, it will not provide numerical information about image distance and object size. To obtain this type of numerical information, it is necessary to use the Mirror Equation and the Magnification Equation. The magnification equation relates the ratio of the image distance and object distance to the ratio of the image height (hi) and object height (ho).
These two equations can be combined to yield information about the image distance and image height if the object distance, object height, and focal length are known. Example Problem #1 1.