Group items tagged

Connexions is: a place to view and share educational material made of small knowledge chunks called modules that can be organized as courses, books, reports, etc.

A Massive open online course (MOOC) is a course where the participants are distributed and course materials also are dispersed across the web. This is possible only if the course is open, and works significantly better if the course is large. The course is not a gathering, but rather a way of connecting distributed instructors and learners across a common topic or field of discourse.[1] MOOCs are a more recent form of online course development --

"It is a widely accepted principle of distributive justice that goods should be distributed to individuals according to their contribution, i.e., people should receive equal pay for equal work (equity principle)...Recently, neuroscientific studies have begun to address neural processes underlying social and economic phenomena like e.g., reactions to norm violations, status concerns, and reactions to unfair behavior. These studies have convergingly identified brain regions that are important for these aspects of social behavior. One consistent finding is that activations of the dopaminergic mesolimbic ("reward") system, especially the nucleus accumbens (NAcc) do not exclusively reflect material self-interest, but also social aspects

Our passion for developing e-learning material for the automotive sector allows us to realize the full potential of what computers and the Internet can achieve. The Electude team is driven by a vision that we must fundamentally change the way people acquire and retain knowledge and skills - by making it fun, effective and efficient.

Putting Educational Innovations Into Practice Find peer reviewed online teaching and learning materials. Share advice and expertise about education with expert colleagues. Be recognized for your contributions to quality education.

World Lecture Hall, your entry point to free online course materials from around the world. Please browse, search, learn and enjoy.

"Social interactions require fast and efficient person perception, which is best achieved through the process of categorization. However, this process can produce pernicious outcomes, particularly in the case of stigma. This study used fMRI to investigate the neural correlates involved in forming both explicit ("Do you like or dislike this person?") and implicit ("Is this a male or female?") judgments of people possessing well-established stigmatized conditions (obesity, facial piercings, transsexuality, and unattractiveness), as well as normal controls. Participants also made post-scan disgust ratings on all the faces that they viewed during imaging. These ratings were subsequently examined (modeled linearly) in a parametric analysis. Regions of interest that emerged include areas previously demonstrated to respond to aversive and disgust-inducing material (amygdala and insula), as well as regions strongly associated with inhibition and control (anterior cingulate and lateral prefrontal cortex). Further, greater differences in activation were observed in the implicit condition for both the amygdala and prefrontal cortical regions in response to the most negatively perceived faces. Specifically, as subcortical responses (e.g., amygdala) increased, cortical responses (e.g., lateral PFC and anterior cingulate) also increased, indicating the possibility of inhibitory processing. These findings help elucidate the neural underpinnings of stigma"

"Igor Efimov, Sarah Gutbrod Using an inexpensive 3-D printer, biomedical engineers have developed a custom-fitted, implantable device with embedded sensors that could transform treatment and prediction of cardiac disorders. The 3-D elastic membrane is made of a soft, flexible, silicon material that is precisely shaped to match the heart's outer layer of the wall. Current technology is two-dimensional and cannot cover the full surface of the epicardium or maintain reliable contact for continual use without sutures or adhesives. The team can then print tiny sensors onto the membrane that can precisely measure temperature, mechanical strain and pH, among other markers, or deliver a pulse of electricity in cases of arrhythmi"

"The WorldCat knowledge base combines data about your library's electronic resources and linking features that enable access to the content and help you manage the workflows associated with these materials. Unlike data in a traditional knowledge base, WorldCat knowledge base data is not tied to a particular application. Knowledge base data is added and maintained in a single place for use with a growing number of OCLC and non-OCLC services."

"Wussten Sie beispielsweise, dass Spinnenseide fünf Mal reißfester als Stahl, sowie extrem stabil und elastisch ist? Das sind Eigenschaften, die sich die Medizin zu Nutzen machen will. Da die Seide nämlich vom Körper nicht als fremd erkannt wird und daher eine Immunabwehr ausbleibt, arbeiten Wissenschaftler daran, aus dem Material Nerven von Unfallopfern zu rekonstruieren - etwa bei einer Querschnittslähmung. Erste vielversprechende Erfolge können sie im Tierversuch bereits vorweisen. Doch damit nicht genug. Mediziner wollen Spinnenseide außerdem dazu benutzen, künstliche Haut und verschiedene Implantate zu züchten"

"Everybody likes a simple cause and effect - something we can point to and say (ommitting a few choice words to the perpetrators), 'Fix this and the bees will be right again.' Reality is rarely so straightforward. As the bee decline has progressed I've lost count of the simple 'causes' that have been presented. Among the more memorable are: * mobile 'phones (the absolute 'definite cause' of choice a couple of years ago) * mobile base stations, power lines and other strong electromagnetic sources (a perennial favourite for any malaise) * alien abduction (hopefully they have smaller probes for abducted bees...) * God's punishment (pro gay-marriage states in the USA have more cases of CCD) Leo's article shows neonicotinoids are at least a plausible candidate and they are surely not good for bees, but the argument for these being the explicit 'cause' of global bee decline is still not particularly strong. The risk here is that the media and vocal lobbyists are going off on a righteous crusade to the detriment of more diligent, and maybe less newsworthy, efforts to get to the root of a complex problem. Rather than reviewing the evidence here, I recommend a visit to Randy Oliver's website where his two recent articles from the American Bee Journalon this topic can be found, along with some further commentary on his home page. Interested readers can also directly access the study by Henry et. al. (2012a), the commentry on this study by Creswell and Thompson (2012), the response to the comment (Henry et. al. 2012b) and to the meta-analysis of toxicological studies on imidacloprid by Creswell (2010). An example of one such study is Cutler and Scott-Dupree (2007). Links to all are included below. These are original material rather than reportage and demonstrate the complexity of the issue. As food for thought, I'll leave you with the following: * Neonicotinoids are widely used in Australia and our bees are not (yet) in decline."

"David Rumsey Map Collection Database and Blog. The Map Database has many viewers and the Blog has numerous categories. The historical map collection has over 42,000 maps and images online. The collection focuses on rare 18th and 19th century North American and South American maps and other cartographic materials.

In our Universe, a black hole is bounded by a spherical surface called an event horizon. Whereas in ordinary three-dimensional space it takes a two-dimensional object (a surface) to create a boundary inside a black hole, in the bulk universe the event horizon of a 4D black hole would be a 3D object - a shape called a hypersphere. When Afshordi's team modelled the death of a 4D star, they found that the ejected material would form a 3D brane surrounding that 3D event horizon, and slowly expand. The authors postulate that the 3D Universe we live in might be just such a brane - and that we detect the brane's growth as cosmic expansion. "Astronomers measured that expansion and extrapolated back that the Universe must have begun with a Big Bang - but that is just a mirage," says Afshordi.

"Erbgutmanipulation ist keine Erfindung der Gentechnik Agrobacterium tumefaciens Nach erfolgreicher Übertragung bildet sich ein transgenes Zellmaterial, aus dem die Gentechniker durch aufwendige Labormethoden anschließend vollständige Pflanzen generieren können. Sie tragen dann in allen ihren Zellen das transferierte Erbgut. Bisher ging man davon aus, dass genau das bei der natürlichen Genmanipulation der Agrobakterien an ihren Wirtspflanzen nicht passiert. Die Bakteriengene bleiben normalerweise in den Zellen des Befallsorts und werden nicht an die nächste Generation der Wirtspflanze weitergegeben. AdTech Ad Doch die aktuellen Ergebnisse der Forscher um Tina Kyndt von der Universität Ghent belegen, dass es in der Entwicklungsgeschichte der Süßkartoffel offenbar doch zu einem permanenten Einbau der Bakteriengene gekommen ist: Die Forscher fanden im Erbgut der verschiedenen Kulturformen der Süßkartoffel (Ipomoea batatas) sowie in einigen ihrer Wildformen genetisches Material von Agrobakterien"

"A group of researchers have developed what are known as vortex beams - rotating electron beams - which make it possible to investigate the magnetic properties of materials and in the future it may be possible to manipulate the tiniest components in a targeted manner and set them in rotation also."

Billed as "the thinnest of all possible materials in the universe," graphene is a one-atom-thick sheet of carbon that looks like "molecular chicken wire."

The shrinking of the transistor has approached fundamental physical limits. Increasingly, transistor manufacturers grapple with subatomic effects, like the tendency for electrons to "leak" across material boundaries. The leaking electrons make it more difficult to know when a transistor is in an on or off state, the information that makes electronic computing possible. They have also led to excess heat, the bane of the fastest computer chips.

UV Visible Spectroscopy (UV-VIS) test done on treated organic products by Mahendra Trivedi

Organic cotton production is the process of growing cotton by using methods and materials that have a low impact on the environment. The seeds used to grow cotton are untreated and are not modified genetically.

"NOTE: all the materials presented on videoneat.com are public, this web site does not host or own any of the video related content."