Newer posts are loading.
You are at the newest post.
Click here to check if anything new just came in.

June 23 2015

02mydafsoup-01

September 27 2014

April 18 2013

02mydafsoup-01

Keine technologische Neuro-Revolution | Telepolis - Stephan Schleim 2013-04-14

Für die Wissenschaft noch ein langer Weg, für uns heute schon eine Aufgabe - Neurotechnologie - Teil 4

Jahrzehnt des Gehirns, Humangenomprojekt, Human Brain Project - auf eine große Forschungsinitiative folgt die nächste. Auch wenn diese zu beeindruckenden Ergebnissen führen, erweist sich der Mensch doch immer wieder als schwieriger zu verstehen, als man zunächst gedacht hat. Deshalb scheinen auch die transhumanistischen Erwartungen als zu optimistisch. Selbst das Beispiel Hirnforschung zeigt, dass das Menschenbild relativ robust ist. Bei aller Technikeuphorie sollten wir uns daher gemeinsam den Gegenwartsproblemen stellen, anstatt in die Verheißungen der Zukunftstechnologien zu flüchten.
Reposted byscyphi scyphi

March 01 2013

Early Neolithic Water Wells Reveal the World's Oldest Wood Architecture

The European Neolithization ~6000−4000 BC represents a pivotal change in human history when farming spread and the mobile style of life of the hunter-foragers was superseded by the agrarian culture. Permanent settlement structures and agricultural production systems required fundamental innovations in technology, subsistence, and resource utilization. Motivation, course, and timing of this transformation, however, remain debatable. Here we present annually resolved and absolutely dated dendroarchaeological information from four wooden water wells of the early Neolithic period that were excavated in Eastern Germany. 



Reposted from02mysoup-aa 02mysoup-aa

February 26 2013

Confirmed: Cosmic Rays Come From Exploding Stars : 80beats

[...]

 

Scientists have known about these ridiculously energetic and high-velocity particles for nearly a hundred years. In daily life, cosmic rays may be familiar as the source of extra radiation airline passengers are exposed to. However scientists have been uncertain about where cosmic rays come from. The extreme conditions of temperature and speed that accompany supernovae and their remains made them a natural starting point for guesses. Now two separate Science papers finally provide evidence that cosmic rays do indeed come from supernovae remnants.

[...]



Reposted from02mysoup-aa 02mysoup-aa

Der Mensch und seine Geschichten

Jonathan Gottschall über die evolutionären Hintergründe des Geschichtenerzählens.
Rezension von Katja Mellmann (25.02.2013)
zu Jonathan Gottschall: The storytelling animal. How stories make us human.
Houghton Mifflin Harcourt, Boston, 2012.

[...]

Gleichwohl fußt Gottschalls Darstellung durchwegs auf gründlicher Kenntnis der einschlägigen Forschungsbereiche, und der Autor erlaubt sich an keiner Stelle eine im pejorativen Sinne ,populärwissenschaftliche‘ Vereinfachung oder Verzerrung. Der in Form von Endnoten und einem Literaturverzeichnis eingerichtete wissenschaftliche Apparat des Buches macht die Studie außerdem für ein Fachpublikum anschlussfähig, und auch im Haupttext werden einzelne wichtige Forschungspositionen namentlich benannt und in einer angemessenen Form referiert. Die belletristischen Kapitelüberschriften und die langen Ausschmückungspassagen freilich erschweren einen schnellen Zugriff des Fachkollegen auf die in der derzeitigen Diskussion zentralen Punkte. Darum sei der Inhalt des Buches hier vor allem im Hinblick auf diese Anschlusspunkte für die Evolutionstheoretische Literaturwissenschaft rekapituliert.

Das erste Kapitel expliziert das Thema des Buches. Gottschall interessiert nicht nur, warum Homo Sapiens überhaupt Geschichten erzählt, sondern auch, warum dem Geschichtenerzählen eine so zentrale Bedeutung in der menschlichen Kultur zukommt. Dieses „Warum“ ist allerdings eher als ein „Dass“ gemeint, das heißt die folgenden Kapitel widmen sich eher dem ausführlichen Nachweis, dass das menschliche Leben in der Tat in vielen Aspekten durch ,Stories‘ bestimmt ist, als einer konsequenten Beantwortung der Warum-Frage. Zwar fragt Gottschall auch regelmäßig nach „Funktionen“ der von ihm beschriebenen Verhaltensweisen, will dies aber ausdrücklich nicht als Antwort auf die Frage nach der biologischen Funktion der jeweiligen Verhaltensweise, also nach ihrer evolutionären Entstehungsursache verstanden wissen. Welche von den beobachtbaren Verhaltenstendenzen jeweils als „Adaptationen“ im evolutionsbiologischen Sinne, also als Anpassungen an einen je spezifischen Selektionsdruck gelten können und welchen Verhaltensweisen wohl eher der Status evolutionärer Nebenprodukte zukommt, lässt Gottschall offen, diskutiert dieses Thema aber verschiedentlich und führt die konträren Forschungspositionen samt ihrer Argumente in aller Kürze auf.

Diese vorsichtige Zurückhaltung erspart ihm unter anderem, sich auf eine bestimmte Reihenfolge festzulegen, in der die beteiligten kognitiven Fähigkeiten evolutionär entstanden sein könnten. Ziel seiner Ausführungen ist also nicht, die Genese des Geschichtenerzählens als menschlicher Eigenschaft zur Darstellung zu bringen, er unternimmt vielmehr eine analytisch aufschlussreiche Parallelisierung verschiedener menschlicher Verhaltensweisen unter dem Aspekt ihrer Bedeutung für die menschliche Fähigkeit des ,Storytelling‘. Zu diesen miteinander parallelisierten Verhaltensweisen gehören insbesondere das kindliche Spiel (Kapitel 2-3), das Träumen (Kapitel 4) und das literarische ,Erzählen‘ (in einem weiten, gattungsübergreifenden Sinne von ,Dichtung‘, ,fiction‘ überhaupt).

[...]

Reposted from02mysoup-aa 02mysoup-aa

February 23 2013

Play fullscreen
What Lessons to Learn from the Chelyabinsk Meteor?

From: setiinstitute

// oAnth: 30 minutes dense information about the actual available knowledge, predictabilty and possible further use of small earth near objects.

In case of your interest see also "Surface exploration of small solar system objects" : http://youtu.be/g_wNpnkbqpQ


Time: 30:00 More in Science & Technology
Reposted from02mysoup-aa 02mysoup-aa

February 20 2013

02mydafsoup-01

February 13 2013

Ozone hole shrinks to record low

Good news from Antarctica: The hole in the ozone layer is shrinking, new measurements reveal


Reposted from02mysoup-aa 02mysoup-aa

February 03 2013

« Lise Meitner, mère de la bombe atomique » de Wolf von Truchsess et Andreas G. Wagner (FR)



// Google search on Lise Meitner

Reposted bysciencemihaicontinuum

January 22 2013

02mydafsoup-01

Thus is the power of graphic representation

Do I understand the graph well - the red written explication is related to the whole black line, which has no relation to the x and y scales? - then it should presumingly only show the relative development between carbon dioxide incl. volcanism and the yearly temperature, which is in MHO hardly convincing, if I try to to understand the obvious down drops in the years of strong volcanic activities. But to interpret the black graph as an average temperature isn't nether very helpful comparing the line with the yearly temperature amplitudes.

Also: 1956 seems for me a pretty late starting point "attributed to human activities" - but there is certainly something like proofing ability or disability by statistics to consider, and we know that the winters during WW2 and especially in the second half of the 1940 were in Europe relatively cold. The graphic as a whole seems to have its flaws - it is lacking a contextual explication.

02mydafsoup-01
Next time you hear that vulcanoes are cause of global warming
Reposted fromscience science

December 08 2012

02mydafsoup-01
Play fullscreen
AT&T Archives: Similiarities of Wave Behavior (Bonus Edition) - YouTube

Veröffentlicht am 03.04.2012


For more from the AT&T Archives, visithttp://techchannel.att.com/archives

On an elementary conceptual level, this film reflects the multifaceted scientific hyperthinking that was typical of a Bell Labs approach. Host Dr. J.N. Shive's presence as a lecturer is excellent - it's understandable by a layperson even when he branches into equations, because he uses copious amounts of real-world examples to bolster the material.

Shive's role at Bell Labs was more than just a great lecturer: he worked on early transistor technology, inventing the phototransistor in 1950, and the machine he uses in the film is his invention, now called the Shive Wave Machine in college classrooms.

Dr. J.N. Shive of Bell Labs demonstrates and discusses the following aspects of wave behavior:

Reflection of waves from free and clamped ends
Superposition
Standing waves and resonance
Energy loss by impedance mismatching
Reduction of energy loss by quarter-wave and tapered-section transformers
Original audience: college students

Produced at Bell Labs

Footage courtesy of AT&T Archives and History Center, Warren, NJ


    Reposted bycptrickscienceeglerion-testgroupselen34gruetzewatchdokusdatenwolfschlingelsofias

    December 04 2012

    02mydafsoup-01

    September 11 2012

    Philomag - Dossier - Pourquoi nous n'apprendrons plus comme avant

    Avec Nicholas Carr // Salman Khan // Michel Serres // Raffaele Simone // Bernard Stiegler // Jean-Philippe Toussaint // Maryanne Wolf
    "La révolution numérique n'est plus un slogan. Chaque jour, nous naviguons un peu plus, délaissons l'imprimé pour l'écran, stockons nos connaissances, vérifions sur Internet ce que nous dit un interlocuteur… ou un enseignant. Comment apprendre, lire, nous souvenir, transmettre, emportés par ce flux que nous maîtrisons encore mal ? Le danger de perdre la concentration et la mémoire, de négliger l'étude, de ne plus pouvoir enseigner, est réel. Mais le basculement de Gutenberg à Google porte aussi en lui l'espoir d'un esprit enfin libre – puisque des machines s'occupent de l'intendance – de se consacrer à l'essentiel : la pensée créatrice. Comme en son temps l'imprimerie, il n'est pas impossible qu'Internet fasse éclore un nouvel humanisme."

    // lisez en plus: http://www.philomag.com/article,dossier,pourquoi-nous-ne-lisons-plus-comme-avant,1845.php





    Reposted from02myhumsci-01 02myhumsci-01

    April 19 2012

    How the Cost of Computation Restricts the Processes of Life - Technology Review

    The energy required to process information places a fundamental limit on biological processes, say scientists who are teasing apart the link between computation and life.

    //oAnth - source URL - technologyreview.com


    April 15 2012

    On the border between matter and anti-matter: Nanoscientists find long-sought Majorana particle

    Scientists in the Netherlands have succeeded for the first time in detecting a Majorana particle.

    ...

     

    // oAnth

    [...]

     

    Quantum computer and dark matter

     

    Majorana fermions are very interesting -- not only because their discovery opens up a new and uncharted chapter of fundamental physics; they may also play a role in cosmology. A proposed theory assumes that the mysterious 'dark matter', which forms the greatest part of the universe, is composed of Majorana fermions. Furthermore, scientists view the particles as fundamental building blocks for the quantum computer. Such a computer is far more powerful than the best supercomputer, but only exists in theory so far. Contrary to an 'ordinary' quantum computer, a quantum computer based on Majorana fermions is exceptionally stable and barely sensitive to external influences.

     

    [...]



    Breakthrough in Quantum Communication

    A team of scientists at the MPQ realizes a first elementary quantum network based on interfaces between single atoms and photons...


     


    April 03 2012

    Play fullscreen
    Chris Mooney on the Science of Why We Deny Science...and Reality

    Uploaded by BerkmanCenter on 3 Apr 2012

    Chris Mooney, Host of Post of Inquiry, discusses motivated reasoning and the "Smart Idiots" effect: he rebuts the conventional wisdom that if you put good information and argument out there and teach the public how to critically think, they will have a clearer idea of what is "truth." More education actually leads to higher degree of partisan beliefs. Arguing for facts alone does not help; more education is not the key: the public denies science not necessarily because they are uneducated but because they think "their" science is better.

    From the Truthiness Conference at Harvard University, March 6, 2012. More information here: http://blogs.law.harvard.edu/truthiness/

    Reposted bykissalonecomplexhenteaser

    March 20 2012

    02mydafsoup-01
    Play fullscreen

    Evolutionary biologist Michael Eisen made this t-shirt design in support of the Elsevier boycott.

    Academic research is behind bars and an online boycott by 8,209 researchers (and counting) is seeking to set it free…well, more free than it has been. The boycott targets Elsevier, the publisher of popular journals like Cell and The Lancet,  for its aggressive business practices, but opposition was electrified by Elsevier’s backing of a Congressional bill titled the Research Works Act (RWA). Though lesser known than the other high-profile, privacy-related bills SOPA and PIPA, the act was slated to reverse the Open Access Policy enacted by the National Institutes of Health (NIH) in 2008 that granted the public free access to any article derived from NIH-funded research. Now, only a month after SOPA and PIPA were defeated thanks to the wave of online protests, the boycotting researchers can chalk up their first win: Elsevier has withdrawn its support of the RWA, although the company downplayed the role of the boycott in its decision, and the oversight committee killed it right away.

    But the fight for open access is just getting started.

    Seem dramatic? Well, here’s a little test. Go to any of the top academic journals in the world and try to read an article. The full article, mind you…not just the abstract or the first few paragraphs. Hit a paywall? Try an article written 20 or 30 years ago in an obscure journal. Just look up something on PubMed then head to JSTOR where a vast archive of journals have been digitized for reference. Denied? Not interested in paying $40 to the publisher to rent the article for a few days or purchase it for hundreds of dollars either? You’ve just logged one of the over 150 million failed attempts per year to access an article on JSTOR. Now consider the fact that the majority of scientific articles in the U.S., for example, has been funded by government-funded agencies, such as the National Science Foundation, NIH, Department of Defense, Department of Energy, NASA, and so on. So while taxpayer money has fueled this research, publishers charge anyone who wants to actually see the results for themselves, including the authors of the articles.

    Paying a high price for academic journals isn’t anything new, but the events that unfolded surrounding the RWA was the straw that broke the camel’s back. It began last December when the RWA was submitted to Congress. About a month later, Timothy Gowers, a mathematics professor at Cambridge University, posted rather innocently to his primarily mathematics-interested audience his particular problems with Elsevier, citing exorbitant prices and forcing libraries to purchase journal bundles rather than individual titles. But clearly, it was Elsevier’s support of the RWA that was his call to action. Two days later, he launched the boycott of Elsevier at thecostofknowledge.com, calling upon his fellow academics to refuse to work with the publisher in any capacity.

    Seemingly right out of Malcolm Gladwell’s book The Tipping Point, researchers started taking a stand in droves. And the boycott of Elsevier continues on, though with less gusto now that the RWA is dead. It’s important to point out though that the boycott is not aimed at forcing Elsevier to make the journals free, but protesting the way it does its business and the fact that it has profits four times larger than related publishers. The Statement of Purpose for the protest indicates that the specific issues that researchers have with Elsevier varies, but “…what all the signatories do agree on is that Elsevier is an exemplar of everything that is wrong with the current system of commercial publication of mathematics journals.”

    The advantages of open access to researchers have been known for some time, but its popularity has struggled.

    It’s clear that all forms of print media, including newspapers, magazines, and books, are in a crisis in the digital era (remember Borders closing?). The modern accepted notion that information should be free has crippled publishers and many simply waited too long to evolve into new pay models. When academic journals went digital, they locked up access behind paywalls or tried to sell individual articles at ridiculous prices. Academic research is the definition of premium, timely content and prices reflected an incredibly small customer base (scientific researchers around the globe) who desperately needed the content as soon as humanly possible. Hence, prices were set high enough that libraries with budgets remained the primary customers, until of course library budgets got slashed, but academics vying for tenure, grants, relevance, or prestige continued to publish in these same journals. After all, where else could they turn…that is, besides the Public Library of Science (PLoS) project?

    In all fairness, some journals get it. The Open Directory maintains a list of journals that switched from paywalls to open access or are experimenting with alternative models. Odds are very high that this list will continue to grow, but how fast? And more importantly, will the Elsevier boycott empower researchers to get on-board the open access paradigm, even if it meant having to reestablish themselves in an entirely new ecosystem of journals?

    As the numbers of dissenting researchers continue to climb, calls for open access to research are translating into new legislation…and the expected opposition. But let’s hope that some are thinking about breaking free from the journal model altogether and discovering creative, innovative ways to get their research findings out there, like e-books or apps that would make the research compelling and interactive. Isn’t it about time researchers took back control of their work?

    If you are passionate about the issue of open access to research, you’ll want to grab a cup of coffee and nestle in for this Research Without Borders video from Columbia University, which really captures the challenge of transition from the old publishing model to the new digital world:

    [Media: Michael Eisen, Open Access, YouTube]

    [Sources: ChronicleThe Cost of KnowledgeLibrary JournalNYTimes]


    Older posts are this way If this message doesn't go away, click anywhere on the page to continue loading posts.
    Could not load more posts
    Maybe Soup is currently being updated? I'll try again automatically in a few seconds...
    Just a second, loading more posts...
    You've reached the end.

    Don't be the product, buy the product!

    Schweinderl