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nirbhay rai

Alternative Energy - 0 views

Renewable energy conference leading socially and politically defined category of energy sources. We provide all of your research, reading needs and the cost of fuel to the home is becoming an incr...

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started by nirbhay rai on 22 Jan 14 no follow-up yet
Erich Feldmeier

@auticon @biogarage #neurobiology Autistic Kids Brains Generate 42 Percent More Informa... - 0 views

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    "New research from Case Western Reserve University and University of Toronto neuroscientists finds that the brains of autistic children generate more information at rest - a 42% increase on average. The study offers a scientific explanation for the most typical characteristic of autism - withdrawal into one's own inner world. The excess production of information may explain a child's detachment from their environment. "
Erich Feldmeier

@biogarage @marueber Igor Efimov, Sarah Gutbrod: 3-D printer creates transformative dev... - 0 views

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    "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"
Janos Haits

Real-time Web Monitor - 0 views

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    "Akamai monitors global Internet conditions around the clock. With this real-time data we identify the global regions with the greatest attack traffic, cities with the slowest Web connections (latency), and geographic areas with the most Web traffic (traffic density)."
Janos Haits

Wikibrains - 0 views

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    To create an online brain that will spark creativity and out of the box thinking through collaboration. Our larger goal is to promote multi-cultural understanding for an abundant future.
Erich Feldmeier

Christopher Opie: Monogamie gegen Kindermord - bild der wissenschaft - 0 views

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    "eine hohe Rate an Kindstötungen durch rivalisierende Männchen. Wechselten diese Primatenarten dann ihr Beziehungsmuster zugunsten der Treue, wurden auch die Kindstötungen seltener. Nach Ansicht der Wissenschaftler deutet dies darauf hin, dass die Männchen einiger Primatenarten ihr Paarungsverhalten damals genau deshalb veränderten - um den Tod ihres Nachwuchses zu verhindern. "Dies ist das erste Mal, dass eindeutig nachgewiesen wurde, dass die Vermeidung der Kindstötung der Antrieb für die Monogamie war", sagt Opie. Diese Erkenntnis beende die lange Debatte über den Ursprung der Monogamie bei den Primaten. Warum allerdings bei allen Vorteilen dieser Lebensweise nicht alle Primaten monogam wurden, sei noch ungeklärt."
Janos Haits

Casetext - Annotated Legal Research - 0 views

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    Casetext is a free legal research tool that lets you annotate the law. With Casetext you can: search using keywords or citations, read the full text of over one million federal and Delaware cases, and learn insights from the annotations of practicing attorneys, professors, and other experts.
Erich Feldmeier

Aussenansicht - Demontage der Wissenschaft - Politik - Süddeutsche.de - 0 views

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    Christian Dries sciencegarden
Janos Haits

World and regional statistics, national data, maps, rankings - 0 views

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    World Data Atlas World and regional statistics, national data, maps, rankings 370M+timeseries: 960+topics: 900+sources: Take a look at data coverage matrix by country or topic to see the full picture!
Erich Feldmeier

Aziz Sancar Chemie-Nobelpreisträger haben Erbgut-Werkstatt durchschaut - 0 views

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    "Er wurde 1946 im anatolischen Savur geboren, arbeitet aber schon länger in den USA. Nach Angaben der Zeitung «Hürriyet» hat er sieben Geschwister. Seine Eltern seien Analphabeten, hätten jedoch viel Wert auf die Bildung ihrer Kinder gelegt... soll ihm ein Kollege geraten habe, das mit der Laborarbeit sein zu lassen, WEGEN FEHLENDEM TALENT" "
Erich Feldmeier

Nobelpreisträger Aziz Sancar: Top-Forscher - allen Widrigkeiten zum Trotz - 0 views

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    "«Aziz, du hast kein Talent für experimentelle Forschung. Du warst doch ein guter Arzt, mach doch das», sagte ihm ein Studienkollege."
Erich Feldmeier

Zeit zur Kooperation - 0 views

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    "Christian Hilbe, Maria Abou Chakra, Philipp M. Altrock, Arne Traulsen, The evolution of strategic timing in collective-risk dilemmas. PLoS ONE 8(6): e66490, 14. Juni 2013, doi:10.1371/journal.pone.0066490 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0066490"
Erich Feldmeier

MPG: Ana Catarina Miranda: Persönlichkeits-Typen werden vererbt - 0 views

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    "Eine eindeutige Erklärung für diese Unterschiede in den Persönlichkeitstypen zwischen Stadt- und Landamseln haben die Wissenschaftler bis jetzt noch nicht. „Möglicherweise müssen Amseln in der schnelllebigen Stadtwelt permanent mit neuen Situationen zurechtkommen, wohingegen das Landleben mit seinen gleichförmigeren Abläufen verlässlichere Lebensbedingungen bietet", vermutet Catarina Miranda vom Max-Planck-Institut für Ornithologie in Radolfzell das Ergebnis. „Die Evolution scheint im Laufe der Besiedlung von Städten daher bestimmte Persönlichkeitstypen begünstigt zu haben", so Miranda. Diese Erklärung wird durch eine jüngst veröffentlichte Studie gestützt: Gene, die wahrscheinlich an der Ausprägung der hier untersuchten Verhaltensweisen beteiligt sind, zeigen in Stadtamseln eine andere Struktur als in den Waldamseln. Die Amselpersönlichkeit scheint also genetisch festgelegt und kann demnach durch Evolution während des Verstädterungprozesses verändert worden sein. ***** Ana Catarina Miranda, Holger Schielzeth, Tanja Sonntag & Jesko Partecke Urbanization and its effects on personality traits: a result of microevolution or phenotypic plasticity?, Global Change Biology, 19 June 2013 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. http://www.ncbi.nlm.nih.gov/pubmed/23681984"
Janos Haits

MIT App Inventor - 0 views

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    To use App Inventor, you do not need to be a professional developer. This is because instead of writing code, you visually design the way the app looks and use blocks to specify the app's behavior.
Tom Thomos

Get the Best Sediment Control Products Online in Australia - 1 views

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    Coastline Sediment Control supplies the best sediment control products online in Australia. Effective sediment control offers many environmental, social and economic benefits. These control measures need to be installed before excavation or site disturbances.
Tom Thomos

Find the Best Sediment Control Products in Australia - 1 views

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    There are many sediment control products available in Australia. They are made from high quality biodegradable materials. You can buy them at reasonable cost. Effective sediment control offers many environmental, social and economic benefits.
Skeptical Debunker

Human cells exhibit foraging behavior like amoebae and bacteria - 0 views

  • "As far as we can tell, this is the first time this type of behavior has been reported in cells that are part of a larger organism," says Peter T. Cummings, John R. Hall Professor of Chemical Engineering, who directed the study that is described in the March 10 issue of the Public Library of Science journal PLoS ONE. The discovery was the unanticipated result of a study the Cummings group conducted to test the hypothesis that the freedom with which different cancer cells move - a concept called motility - could be correlated with their aggressiveness: That is, the faster a given type of cancer cell can move through the body the more aggressive it is. "Our results refute that hypothesis—the correlation between motility and aggressiveness that we found among three different types of cancer cells was very weak," Cummings says. "In the process, however, we began noticing that the cell movements were unexpectedly complicated." Then the researchers' interest was piqued by a paper that appeared in the February 2008 issue of the journal Nature titled, "Scaling laws of marine predator search behaviour." The paper contained an analysis of the movements of a variety of radio-tagged marine predators, including sharks, sea turtles and penguins. The authors found that the predators used a foraging strategy very close to a specialized random walk pattern, called a Lévy walk, an optimal method for searching complex landscapes. At the end of the paper's abstract they wrote, "...Lévy-like behaviour seems to be widespread among diverse organisms, from microbes to humans, as a 'rule' that evolved in response to patchy resource distributions." This gave Cummings and his colleagues a new perspective on the cell movements that they were observing in the microscope. They adopted the basic assumption that when mammalian cells migrate they face problems, such as efficiently finding randomly distributed targets like nutrients and growth factors, that are analogous to those faced by single-celled organisms foraging for food. With this perspective in mind, Alka Potdar, now a post-doctoral fellow at Case Western Reserve University and the Cleveland Clinic, cultured cells from three human mammary epithelial cell lines on two-dimensional plastic plates and tracked the cell motions for two-hour periods in a "random migration" environment free of any directional chemical signals. Epithelial cells are found throughout the body lining organs and covering external surfaces. They move relatively slowly, at about a micron per minute which corresponds to two thousandths of an inch per hour. When Potdar carefully analyzed these cell movements, she found that they all followed the same pattern. However, it was not the Lévy walk that they expected, but a closely related search pattern called a bimodal correlated random walk (BCRW). This is a two-phase movement: a run phase in which the cell travels primarily in one direction and a re-orientation phase in which it stays in place and reorganizes itself internally to move in a new direction. In subsequent studies, currently in press, the researchers have found that several other cell types (social amoeba, neutrophils, fibrosarcoma) also follow the same pattern in random migration conditions. They have also found that the cells continue to follow this same basic pattern when a directional chemical signal is added, but the length of their runs are varied and the range of directions they follow are narrowed giving them a net movement in the direction indicated by the signal.
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    When cells move about in the body, they follow a complex pattern similar to that which amoebae and bacteria use when searching for food, a team of Vanderbilt researchers have found. The discovery has a practical value for drug development: Incorporating this basic behavior into computer simulations of biological processes that involve cell migration, such as embryo development, bone remodeling, wound healing, infection and tumor growth, should improve the accuracy with which these models can predict the effectiveness of untested therapies for related disorders, the researchers say.
Janos Haits

Vizzuality | Envisioning life - 0 views

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    Rather than talk about how good we are we would like to show you.Committed to improving our world, one project at a time, for stories that matter
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