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David Corking

Wolfram Blog : Is Mathematica for K-12 Education? You Bet! - 0 views

  • let students explore concepts by manipulating an expression—or a graphical representation of an expression—with things like sliders, buttons, and checkboxes. When you wrap the Manipulate command around an existing calculation, Mathematica automatically creates a sophisticated interface that lets you and your students change values and see what happens in real time. It’s truly empowering! Now students can interact with everything from two-dimensional trajectory paths… to Riemann sums… to the phases of the planets… to almost anything else you can imagine. See the Wolfram Demonstrations Project for thousands of free ready-to-use examples.
  • Mathematica for the Classroom for only $49.
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    sounds like good value proprietary science + math software for schools
thinkahol *

Dr. Daniel G. Nocera - YouTube - 0 views

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    The supply of secure, clean, sustainable energy is arguably the most important scientific and technical challenge facing humanity in the 21st century. Rising living standards of a growing world population will cause global energy consumption to double by mid-century and triple by the end of the century. Even in light of unprecedented conservation, the additional energy needed is simply not attainable from long discussed sources these include nuclear, biomass, wind, geothermal and hydroelectric. The global appetite for energy is simply too much. Petroleum-based fuel sources (i.e., coal, oil and gas) could be increased. However, deleterious consequences resulting from external drivers of economy, the environment, and global security dictate that this energy need be met by renewable and sustainable sources. The dramatic increase in global energy need is driven by 3 billion low-energy users in the non-legacy world and by 3 billion people yet to inhabit the planet over the next half century. The capture and storage of solar energy at the individual level personalized solar energy drives inextricably towards the heart of this energy challenge by addressing the triumvirate of secure, carbon neutral and plentiful energy. This talk will place the scale of the global energy issue in perspective and then discuss how personalized energy (especially for the non-legacy world) can provide a path to a solution to the global energy challenge. Daniel G. Nocera is the Henry Dreyfus Professor of Energy at the Massachusetts Institute of Technology, Director of the Solar Revolutions Project and Director of the Eni Solar Frontiers Center at MIT. His group pioneered studies of the basic mechanisms of energy conversion in biology and chemistry. He has recently accomplished a solar fuels process that captures many of the elements of photosynthesis outside of the leaf. This discovery sets the stage for a storage mechanism for the large scale, distributed, deployment of solar energy. He has b
thinkahol *

TEDxRheinMain - Prof. Dr. Thomas Metzinger - The Ego Tunnel - YouTube - 1 views

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    Brain, bodily awareness, and the emergence of a conscious self: these entities and their relations are explored by Germanphilosopher and cognitive scientist Metzinger. Extensively working with neuroscientists he has come to the conclusion that, in fact, there is no such thing as a "self" -- that a "self" is simply the content of a model created by our brain - part of a virtual reality we create for ourselves. But if the self is not "real," he asks, why and how did it evolve? How does the brain construct the self? In a series of fascinating virtual reality experiments, Metzinger and his colleagues have attempted to create so-called "out-of-body experiences" in the lab, in order to explore these questions. As a philosopher, he offers a discussion of many of the latest results in robotics, neuroscience, dream and meditation research, and argues that the brain is much more powerful than we have ever imagined. He shows us, for example, that we now have the first machines that have developed an inner image of their own body -- and actually use this model to create intelligent behavior. In addition, studies exploring the connections between phantom limbs and the brain have shown us that even people born without arms or legs sometimes experience a sensation that they do in fact have limbs that are not there. Experiments like the "rubber-hand illusion" demonstrate how we can experience a fake hand as part of our self and even feel a sensation of touch on the phantom hand form the basis and testing ground for the idea that what we have called the "self" in the past is just the content of a transparent self-model in our brains. Now, as new ways of manipulating the conscious mind-brain appear on the scene, it will soon become possible to alter our subjective reality in an unprecedented manner. The cultural consequences of this, Metzinger claims, may be immense: we will need a new approach to ethics, and we will be forced to think about ourselves in a fundamentally new way. At
Erich Feldmeier

Reiner Hartenstein: Werden Tumore Krebs Cancer durch Angiogenese-Hemmer aggressiver? (A... - 0 views

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    dass bei Mäusen mindestens 2 der 3 zur Krebstherapie zugelassenen Angiogenese-Hemmer die Bösartigkeit von Tumoren erhöhen können (Cancer Cell 2009, Band 15: Seite 220 und 232). Wurden krebskranke Labortiere mit den Wirkstoffen Sunitinib oder Sorafenib behandelt, verlangsamte sich einerseits das Tumorwachstum deutlich, andererseits drangen die Tumore verstärkt in das umliegende Gewebe ein und bildeten mehr Metastasen. .. Offenbar verlangsamen Angiogenese-Hemmer zunächst das Wachstum eines Tumors, bis dieser auf das knappe Nährstoffangebot reagiert und sich gegen das Aushungern zur Wehr setzt. „Möglicherweise liegt das daran, dass ein Tumor sein Wachstumsverhalten ändert, wenn er nicht mehr ausreichend versorgt wird. Indem er in benachbartes Gewebe eindringt und Tochtergeschwülste bildet, könnte er versuchen, wieder mehr Nachschub zu bekommen
Charles Daney

Phenomenology, Fundamental Physics and Inconsistent Truths : Dynamics of Cats - 0 views

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    The paper, Gentile et al, Nature, 461, 627, 2009, discusses the apparent constant surface mass density of disk galaxies in the centers, over several orders of magnitude in mass and luminosity of galaxies, and that the density, when fit with a cold dark matter inspired density profile for the galaxy halos, leads one to conclude the break radius is such that the inferred cold dark matter density decreases at a radius corresponding to an apparently near constant acceleration.
thinkahol *

TED Blog | The 4 ways sound affects us: Julian Treasure on TED.com - 0 views

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    Playing sound effects both pleasant and awful, Julian Treasure shows how sound affects us in four significant ways. Listen carefully for a shocking fact about noisy open-plan offices. (Recorded at TEDGlobal University, July 2009, Oxford, UK. Duration: 5:47)
Erich Feldmeier

Maurice Levi: Winterkind Summer babies less likely to be CEOs - 0 views

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    "Levi and his co-authors, former Sauder PhD students Qianqian Du and Huasheng Gao, investigated the birth-date effect in a sample of 375 CEOs from S&P 500 companies between 1992 and 2009. "Our study adds to the growing evidence that the way our education system groups students by age impacts their lifelong success," says Prof. Levi. "We could be excluding some of the business world's best talent simply by enrolling them in school too early.""
Erich Feldmeier

Why Interacting with a Woman Can Leave Men "Cognitively Impaired": Scientific American - 0 views

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    "It seems like his brain isn't working quite properly and according to new findings, it may not be. Researchers have begun to explore the cognitive impairment that men experience before and after interacting with women. A 2009 study demonstrated that after a short interaction with an attractive woman, men experienced a decline in mental performance. A more recent study suggests that this cognitive impairment takes hold even w hen men simply anticipate interacting with a woman who they know very little about. Sanne Nauts ... Daisy Grewal is a researcher at the Stanford School of Medicine, where she investigates how stereotypes affect the careers of women and minority scientists."
Erich Feldmeier

A Scicurious CV « Are you Scicurious? - 0 views

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    "A Scicurious CV In which Sci can boast about herself. http://scicurious.wordpress.com/ http://scienceblogs.com/neurotopia Professional Honors Semifinalist in the 3 Quarks Daily 2010 Prize in Science: Featured in The Open Laboratory: Best Science Blogging 2008 Blogging Anthology. "Uber Coca, by Sigmund Freud" Featured in The Open Laboratory: Best Science Blogging 2009 Blogging Anthology. "Addiction and the Opponent-Process Theory" Nominated for Eureka's Top 30 Science Blogs at the Times Online."
Erich Feldmeier

Stefan Finsel, Randy Oliver. Psiram » Bienensterben, Neonicotinoide und die F... - 0 views

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    "Sehr lesenswert sind unserer Meinung nach die Artikel des Biologen und Bienenexperten Randy Oliver, der ein regelmäßiger Autor im American Bee Journal ist. Auf seiner Homepage "Scientific Beekeeper" findet man zwei hochinteressante Artikel, auf die wir an dieser Stelle verweisen möchten: Neonicotinoids: Trying To Make Sense of the Science Neonicotinoids: Trying To Make Sense of the Science - Part 2 Er listet viele Studien zum CCD und zu Neonicotinoiden und schreibt, dass etliche mit einer gehörigen Portion Voreingenommenheit in die eine oder andere Richtung behaftet sind. Manche spielen die Wirkung der Neonicotinoide hinunter, andere versuchen zu beweisen, dass diese Giftstoffe die zentrale Schuld am Bienensterben tragen. In einem spannenden Artikel von April 2013, bei dem er sich vor allem damit auseinandersetzt, was "dieses Frühjahr mit den Bienen geschah", vergleicht er die Bienenverluste mit der Verwendung von Neonicotinoiden. Er findet dabei eine Korrelation von 2006 bis 2009, aber 2010 dreht sich der Trend: mehr Neonicotinoide als im Vorjahr werden eingesetzt und wesentlich weniger Bienen verenden"
Erich Feldmeier

@5SeenGeno @biogarage Randolf Menzel: #sleep #bees memory consolidation #Neurobiology - 0 views

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    "Sleep and its role in memory consolidation The role of sleep in the honeybee memory consolidation has been addressed in our lab in two studies so far. Hussaini et al. (2009; http://www.neurobiologie.fu-berlin.de/menzel/Pub_AGmenzel/Sleep Deprivation.pdf) found reduced retention after extinction learning in an olfactory PER experiment if bees are prevented from sleep during the night following extinction learning. Beyaert, Greggers and Menzel tested freely flying bees after navigation learning and found reduced homing rates if the bees could not sleep the night after novel navigation learning (see Beyaert L, Greggers U and Menzel R (2012) Honeybees consolidate navigation memory during sleep. Journal of Experimental Biology 215, 3981-3988"
Erich Feldmeier

Ulman Lindenberger: Gitarristen synchronisieren sich neurobiologisch - 0 views

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    "Wenn Gitarristen im Duett musizieren, synchronisiert sich die Aktivität ihrer Hirnwellen. Dies hatten Wissenschaftler um Ulman Lindenberger vom Max-Planck-Institut für Bildungsforschung in Berlin bereits 2009 herausgefunden. Jetzt sind die Wissenschaftler einen Schritt weiter gegangen und haben die Hirnaktivität von jeweils zwei Gitarrenspielern untersucht, die ein Musikstück mit zwei unterschiedlichen Stimmen wiedergaben. Hiermit wollten sie herausfinden, ob die Synchronisation der Hirnwellen auch dann zustande kommen würde, wenn die beiden Gitarrenspieler eben nicht genau das Gleiche spielten"
Erich Feldmeier

Cellendes: Company - 0 views

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    "Cellendes continously expands the 3-D Life product line to provide an innovative and increasingly comprehensive technology for a broad range of applications in 3-D cell culture. Cellendes seeks collaborations with academic and industrial partners to explore and develop the use of the 3-D Life technology in complex cell-based assays and tissue models for drug screening as well as in biomedical engineering. Cellendes was founded in 2009 by Dr. Brigitte Angres and Dr. Helmut Wurst. Cellendes is a spinoff company of the NMI Natural and Medical Sciences Institute at the University of Tübingen."
Erich Feldmeier

Kathryn L Taylor, already knowing bias - 0 views

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    "Kathryn Taylor, associate professor in the Cancer Control Program, on conflicting advice about men getting tested for prostate cancer: "We tell men that there's no right or wrong answer [regarding prostate-specific antigen testing] at present, and it really comes down to a personal choice. And the onus, unfortunately, is on them to really educate themselves about the potential benefits as well as the potential harms." American Cancer Society Stands By Cancer Screening Guidelines October 22, 2009, MSN"
Erich Feldmeier

Heinz von Foerster: Kommutativgesetz 3 mal 2 ist 2 mal 3 - YouTube - 0 views

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    "Hochgeladen am 27.03.2009 Ausschnitt aus dem Film "90 Jahre Heinz von Foerster" von Maria Pruckner."
Erich Feldmeier

@biogarage About HACKTERIA, Andy Gracie, Marc Dusseiller and Yashas Shetty, after coll... - 0 views

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    "Hackteria is a webplatform and collection of Open Source Biological Art Projects instigated in February 2009 by Andy Gracie, Marc Dusseiller and Yashas Shetty, after collaboration during the Interactivos?09 Garage Science at Medialab Prado in Madrid"
thinkahol *

YouTube - Controlling the Brain with Light (Karl Deisseroth, Stanford University) - 0 views

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    Free Download - StanfordUniversity - January 22, 2009 - Karl Deisseroth is pioneering bold new treatments for depression and other psychiatric diseases. By sending pulses of light into the brain, Deisseroth can control neural activity with remarkable precision. In this short talk, Deisseroth gives an thoughtful and awe-inspiring overview of his Stanford University lab's groundbreaking research in "optogenetics".
Mike Chelen

RNA world easier to make : Nature News - 0 views

  • John Sutherland and his colleagues from the University of Manchester, UK
  • ribonucleotide
  • building block of RNA
  • ...29 more annotations...
  • Donna Blackmond, a chemist at Imperial College London.
  • strong evidence for the RNA world
  • 'RNA world' hypothesis, which suggests that life began when RNA, a polymer related to DNA that can duplicate itself and catalyse reactions
  • chemists had thought the subunits would probably assemble themselves first, then join to form a ribonucleotide
  • three distinct parts: a ribose sugar, a phosphate group and a base
  • RNA polymer is a string of ribonucleotides
  • efforts to connect ribose and base together have met with frustrating failure
  • researchers have now managed to synthesise
  • ribonucleotides
  • remedy is to avoid producing separate ribose-sugar and base subunits
  • makes a molecule whose scaffolding contains a bond that will
  • be the key ribose-base connection
  • atoms are then added around this skeleton
  • final connection is to add a phosphate group
  • influences the entire synthesis
  • acting as a catalyst, it guides small organic molecules into making the right connections
  • What we have ended up with is molecular choreography
  • objectors to the RNA-world theory say the RNA molecule as a whole is too complex to be created using early-Earth geochemistry
  • flaw is in the logic — that this experimental control by researchers in a modern laboratory could have been available on the early Earth
  • Robert Shapiro, a chemist at New York University
  • early-Earth scenarios
  • heating molecules in water, evaporating them and irradiating them with ultraviolet light
  • results showing that they can string nucleotides together
  • ultimate goal is to get a living system (RNA) emerging from a one-pot experiment
  • need to know what the constraints on the conditions are first
  • Shapiro sides with
  • another theory of life's origins
  • because RNA is too complex to emerge from small molecules, simpler metabolic processes
  • eventually catalysed the formation of RNA and DNA
Charles Daney

Untangling the Brain | Harvard Magazine May-June 2009 - 0 views

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    Three Harvard scholars trained in chemistry and physics pursue innovative approaches and tools that address problems in neuroscience.
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