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Charles Daney

Astronomers Find Hyperactive Galaxies in the Early Universe - NASA - 0 views

www.nasa.gov/...hyperactive_galaxies.html

astrophysics galaxy evolution

shared by Charles Daney on 13 Sep 09 - Cached
  • Charles Daney on 13 Sep 09
     
    Looking almost 11 billion years into the past, astronomers have measured the motions of stars for the first time in a very distant galaxy and clocked speeds upwards of one million miles per hour, about twice the speed of our Sun through the Milky Way. The fast-moving stars shed new light on how these distant galaxies, which are a fraction the size of our Milky Way, may have evolved into the full-grown galaxies seen around us today. The results will be published in the August 6, 2009 issue of the journal Nature, with a companion paper in the Astrophysical Journal.
Skeptical Debunker

A mini-laboratory for all cases - Research News 03-2010-Topic 5 - Fraunhofer-Gesellschaft - 0 views

www.fraunhofer.de/...mini-laboratory.jsp

mini-laboratory diagnosis disease

shared by Skeptical Debunker on 02 Mar 10 - Cached
  •  »We’ll just have to wait for the results of the laboratory tests.« These words are familiar to many patients. It then usually takes several days for specimens to be sent to the laboratory and analyzed and for the doctor to receive the results. For many illnesses, however, a speedy diagnosis is crucial if the treatment is to be successful. In future, the patient might only have to sit in the waiting room for a few minutes until the results are ready. In a joint project, researchers from seven Fraunhofer institutes have developed a modular platform for in vitro diagnosis which enables various types of bioanalysis – of blood and saliva for example – to be conducted in the doctor’s surgery. »Thanks to its modular design our IVD platform is so flexible that it can be used for all possible bioanalytical tasks,« states Dr. Eva Ehrentreich-Förster from the Fraunhofer Institute for Biomedical Engineering (IBMT) in Potsdam-Golm.The core element of the mini-laboratory is a disposable cartridge made of plastic which can be fitted with various types of sensor. For an analysis the doctor fills the cartridge with reagents – binding agents which indicate the presence of certain substances such as antigens in the specimen material. Various tests or assays are available for different types of analysis. To perform an assay, the doctor only has to place the relevant substances in the cartridge and the test then takes place automatically. »We have optimized the assays so that up to 500 assay reactions can be conducted in parallel in a single analysis step,« explains Dr. Ehrentreich-Förster. Even in the case of complex analyses the doctor obtains a result within about 30 minutes. A new module on the reverse side of the cartridge also makes it possible to analyze the specimen material at DNA level.Once the cartridge has been prepared, the doctor places it in the measurement system. The results can be read out with either optical or electrochemical biosensors. The researchers have installed a readout window for both methods in the measurement system, which features a bypass through which the specimen is pumped.
  • Skeptical Debunker on 02 Mar 10
     
    Many illnesses can be reliably diagnosed through laboratory tests, but these in vitro analyses often use up valuable time. A system developed by Fraunhofer research scientists, which can carry out complex analyses on the spot, will soon be ready for the market.
Skeptical Debunker

Darkness increases dishonest behavior - 0 views

www.physorg.com/news186669983.html

darkness dishonesty behavior

shared by Skeptical Debunker on 01 Mar 10 - Cached
  • Skeptical Debunker on 01 Mar 10
     
    "Darkness can conceal identity and encourage moral transgressions; thus Ralph Waldo Emerson wrote in "Worship" in The Conduct of Life (1860), "as gaslight is the best nocturnal police, so the universe protects itself by pitiless publicity." New research in Psychological Science, a journal of the Association for Psychological Science, shows that darkness may also induce a psychological feeling of illusory anonymity, just as children playing "hide and seek" will close their eyes and believe that other cannot see them, the experience of darkness, even one as subtle as wearing a pair of sunglasses, triggers the belief that we are warded from others' attention and inspections."
Walid Damouny

Vitamin D levels associated with survival in lymphoma patients - 0 views

www.physorg.com/news179255525.html

PhysOrg.com vitamin D vitamins cancer health medical medicine

shared by Walid Damouny on 06 Dec 09 - Cached
  • Walid Damouny on 06 Dec 09
     
    "A new study has found that the amount of vitamin D in patients being treated for diffuse large B-cell lymphoma was strongly associated with cancer progression and overall survival. The results will be presented at the annual meeting of the American Society of Hematology in New Orleans."
Ilmar Tehnas

2010 preview: Will a neutralino steal Higgs's thunder? - physics-math - 26 December 200... - 0 views

www.newscientist.com/...lino-steal-higgss-thunder.html

science

shared by Ilmar Tehnas on 27 Dec 09 - Cached
  • Ilmar Tehnas on 27 Dec 09
     
    The predicted neutralino may actually make up a portion or all of dark matter, if it's existence can be proved by the LHC.
Ilmar Tehnas

Oceans of Liquid Diamond May Exist On Neptune and Uranus - 0 views

www.physorg.com/news183044315.html

science

shared by Ilmar Tehnas on 25 Jan 10 - Cached
  • Ilmar Tehnas on 25 Jan 10
     
    Far fetched but interesting idea. Unlikely we will actually find out in the near term due to conditions in the atmosphere of these planets.
Walid Damouny

Study identifies food combination associated with reduced Alzheimer's disease risk - 0 views

www.physorg.com/news190309290.html

PhysOrg.com alzheimer diet food lifestyle health

shared by Walid Damouny on 20 Apr 10 - Cached
  • Walid Damouny on 20 Apr 10
     
    "Individuals whose diet includes more salad dressing, nuts, fish, poultry and certain fruits and vegetables and fewer high-fat dairy products, red meats, organ meats and butter appear less likely to develop Alzheimer's disease, according to a report posted online today that will appear in the June print issue of Archives of Neurology, one of the JAMA/Archives journals."
thinkahol *

Face Research Lab » Abstracts - 0 views

www.facelab.org/...abstracts

health mate preference

shared by thinkahol * on 26 May 10 - Cached
  • thinkahol * on 26 May 10
     
    Recent formulations of sexual selection theory emphasise how mate choice can be affected by environmental factors, such as predation risk and resource quality. Women vary greatly in the extent to which they prefer male masculinity and this variation is hypothesised to reflect differences in how women resolve the trade-off between the costs (e.g., low investment) and benefits (e.g., healthy offspring) associated with choosing a masculine partner. A strong prediction of this trade-off theory is that women's masculinity preferences will be stronger in cultures where poor health is particularly harmful to survival. We investigated the relationship between women's preferences for male facial masculinity and a health index derived from World Health Organization statistics for mortality rates, life expectancies, and the impact of communicable disease. Across 30 countries, masculinity preference increased as health decreased. This relationship was independent of cross-cultural differences in wealth or women's mating strategies. These findings show non-arbitrary cross-cultural differences in facial attractiveness judgments and demonstrate the utility of trade-off theory for investigating cross-cultural variation in women's mate preferences.
thinkahol *

Mind gym: Putting meditation to the test - life - 11 January 2011 - New Scientist - 0 views

www.newscientist.com/...ng-meditation-to-the-test.html

Mind gym: Putting meditation to the test - life 11 January 2011 New Scientist

shared by thinkahol * on 14 Jan 11 - No Cached
  • thinkahol * on 14 Jan 11
     
    Mystics will tell you that meditation transforms the mind and soothes the soul. But what does science have to say?
thinkahol *

Brain's visual circuits edit what we see before we see it | KurzweilAI - 0 views

www.kurzweilai.net/do-error-correction-on-the-fly

Brain's visual circuits edit what we see before it | KurzweilAI

shared by thinkahol * on 12 Dec 10 - No Cached
  • thinkahol * on 12 Dec 10
     
    The brain's visual neurons continually develop predictions of what they will perceive and then correct erroneous assumptions as they take in additional external information, according to new research done at Duke University.
thinkahol *

Evidence lacking for widespread use of costly antipsychotic drugs, study suggests - 0 views

www.sciencedaily.com/...110107094900.htm

Evidence lacking for widespread use of costly antipsychotic drugs study suggests

shared by thinkahol * on 09 Jan 11 - No Cached
  • thinkahol * on 09 Jan 11
     
    ScienceDaily (Jan. 7, 2011) - Many prescriptions for the top-selling class of drugs, known as atypical antipsychotic medications, lack strong evidence that the drugs will actually help, a study by researchers at the Stanford University School of Medicine and University of Chicago has found. Yet, drugs in this class may cause such serious effects as weight gain, diabetes and heart disease, and cost Americans billions of dollars.
thinkahol *

Peak Oil and a Changing Climate | The Nation - 2 views

www.thenation.com/...peak-oil-and-changing-climate

Peak Oil and a Changing Climate | The Nation

shared by thinkahol * on 11 Feb 11 - No Cached
  • thinkahol * on 11 Feb 11
     
    Peak Oil is the point at which petroleum production reaches its greatest rate just before going into perpetual decline. In "Peak Oil and a Changing Climate," a new video series from The Nation and On The Earth productions, radio host Thom Hartmann explains that the world will reach peak oil within the next year if it hasn't already. As a nation, the United States reached peak oil in 1974, after which it became a net oil importer. Bill McKibben, Noam Chomsky, Nicole Foss, Richard Heinberg and the other scientists, researchers and writers interviewed throughout "Peak Oil and a Changing Climate" describe the diminishing returns our world can expect as it deals with the consequences of peak oil even as it continues to pretend it doesn't exist. These experts predict substantially increased transportation costs, decreased industrial production, unemployment, hunger and social chaos as the supplies of the  fuels on which we rely dwindle and eventually disappear. Chomsky urges us to anticipate the official response to peak oil based on how corporations, news organizations and other institutions have responded to global warming: obfuscation, spin and denial. James Howard Kunstler says that we cannot survive peak oil unless we "come up with a consensus about reality that is consistent with the way things really are." This documentary series hopes to help build that consensus. Click here to watch the introductory video, and check back here for new videos each Wednesday.
thinkahol *

Graphene may reveal the grain of space-time - physics-math - 13 May 2011 - New Scientist - 1 views

www.newscientist.com/...al-the-grain-of-spacetime.html

Graphene reveal the grain of space-time - physics-math 13 May 2011 New Scientist

shared by thinkahol * on 16 May 11 - No Cached
  • thinkahol * on 16 May 11
     
    COULD the structure of space and time be sketched out inside a cousin of plain old pencil lead? The atomic grid of graphene may mimic a lattice underlying reality, two physicists have claimed, an idea that could explain the curious spin of the electron. Graphene is an atom-thick layer of carbon in a hexagonal formation. Depending on its position in this grid, an electron can adopt either of two quantum states - a property called pseudospin which is mathematically akin to the intrinsic spin of an electron. Most physicists do not think it is true spin, but Chris Regan at the University of California, Los Angeles, disagrees. He cites work with carbon nanotubes (rolled up sheets of graphene) in the late 1990s, in which electrons were found to be reluctant to bounce back off these obstacles. Regan and his colleague Matthew Mecklenburg say this can be explained if a tricky change in spin is required to reverse direction. Their quantum model of graphene backs that up. The spin arises from the way electrons hop between atoms in graphene's lattice, says Regan. So how about the electron's intrinsic spin? It cannot be a rotation in the ordinary sense, as electrons are point particles with no radius and no innards. Instead, like pseudospin, it might come from a lattice pattern in space-time itself, says Regan. This echoes some attempts to unify quantum mechanics with gravity in which space-time is built out of tiny pieces or fundamental networks (Physical Review Letters, vol 106, p 116803). Sergei Sharapov of the National Academy of Sciences of Ukraine in Kiev says that the work provides an interesting angle on how electrons and other particles acquire spin, but he is doubtful how far the analogy can be pushed. Regan admits that moving from the flatland world of graphene to higher-dimensional space is tricky. "It will be interesting to see if there are other lattices that give emergent spin," he says.
thinkahol *

The Loneliest Plant In The World : Krulwich Wonders… : NPR - 1 views

www.npr.org/...e-loneliest-plant-in-the-world

The Loneliest Plant In World : Krulwich Wonders… NPR

shared by thinkahol * on 11 May 11 - No Cached
  • thinkahol * on 11 May 11
     
    When a cycad is ready to reproduce, it grows a large colorful cone, rich with pollen or seed. It signals its readiness by radiating heat or sending out attractive odors to pollinators, who travel back and forth. Once fertilized, the seed-rich cone is ripped apart by hungry seed carriers (who've included over the years, not just birds and insects, but dinosaurs, pterosaurs, bats; these trees have been eaten by just about everybody). But what if you can't find a mate? The tree in London (and its clones that are now growing in botanical gardens all over the world) is a male. It can make pollen. But it can't make the seeds. That requires a female. Researchers have wandered the Ngoya forest and other woods of Africa, looking for an E. woodii that could pair with the one in London. They haven't found a single other specimen. They're still searching. Unless a female exists somewhere, E. woodii will never mate with one of its own. It can be cloned. It can have the occasional fling with a closely related species. Hybrid cycads are sold at plant stores, but those plants aren't the real deal. The tree that sits in London can't produce a true offspring. It sits there, the last in its long line, waiting for a companion that may no longer exist.
thinkahol *

Artificial hippocampal system restores long-term memory, enhances cognition | KurzweilAI - 2 views

www.kurzweilai.net/stem-restores-long-term-memory

Artificial hippocampal system restores long-term memory enhances cognition | KurzweilAI

shared by thinkahol * on 18 Jun 11 - No Cached
  • thinkahol * on 18 Jun 11
     
    Theodore Berger and his team at the USC Viterbi School of Engineering's Department of Biomedical Engineering have developed a neural prosthesis for rats that is able to restore their ability to form long-term memories after they had been pharmacologically blocked. In a dramatic demonstration, Berger blocked the ability to rats to form long-term memories by using pharmacological agents to disrupt the neural circuitry that communicates between two subregions of the hippocampus, CA1 and CA3, which interact to create long-term memory, prior research has shown. The rats were unable to remember which lever to pull to gain a reward, or could only remember for 5-10 seconds, when previously they could remember for a long period of time. The researchers then developed an artificial hippocampal system that could duplicate the pattern of interaction between CA3-CA1 interactions. Long-term memory capability returned to the pharmacologically blocked rats when the team activated the electronic device programmed to duplicate the memory-encoding function. The researchers went on to show that if a prosthetic device and its associated electrodes were implanted in animals with a normal, functioning hippocampus, the device could actually strengthen the memory being generated internally in the brain and enhance the memory capability of normal rats. "These integrated experimental modeling studies show for the first time that with sufficient information about the neural coding of memories, a neural prosthesis capable of real-time identification and manipulation of the encoding process can restore and even enhance cognitive mnemonic processes," says the paper. Next steps, according to Berger and Deadwyler, will be attempts to duplicate the rat results in primates (monkeys), with the aim of eventually creating prostheses that might help human victims of Alzheimer's disease, stroke, or injury recover function. Ref.: "A Cortical Neural Prosthesis for Restoring and Enhancing
thinkahol *

Minority rules: Scientists discover tipping point for the spread of ideas - 1 views

www.sciencedaily.com/...110725190044.htm

Minority rules: Scientists discover tipping point for the spread of ideas

shared by thinkahol * on 27 Jul 11 - No Cached
  • thinkahol * on 27 Jul 11
     
    ScienceDaily (July 26, 2011) - Scientists at Rensselaer Polytechnic Institute have found that when just 10 percent of the population holds an unshakable belief, their belief will always be adopted by the majority of the society. The scientists, who are members of the Social Cognitive Networks Academic Research Center (SCNARC) at Rensselaer, used computational and analytical methods to discover the tipping point where a minority belief becomes the majority opinion. The finding has implications for the study and influence of societal interactions ranging from the spread of innovations to the movement of political ideals.
thinkahol *

‪Quantum Computers and Parallel Universes‬‏ - YouTube - 0 views

www.youtube.com/watch

‪Quantum Computers and Parallel Universes‬‏ - YouTube

shared by thinkahol * on 31 Jul 11 - No Cached
  • thinkahol * on 31 Jul 11
     
    Complete video at: http://fora.tv/2009/05/23/Marcus_Chown_in_Conversation_with_Fred_Watson Marcus Chown, author of Quantum Theory Cannot Hurt You: A Guide to the Universe, discusses the mechanics behind quantum computers, explaining that they function by having atoms exist in multiple places at once. He predicts that quantum computers will be produced within 20 years. ----- The two towering achievements of modern physics are quantum theory and Einsteins general theory of relativity. Together, they explain virtually everything about the world in which we live. But almost a century after their advent, most people havent the slightest clue what either is about. Radio astronomer, award-winning writer and broadcaster Marcus Chown talks to fellow stargazer Fred Watson about his book Quantum Theory Cannot Hurt You. - Australian Broadcasting Corporation Marcus Chown is an award-winning writer and broadcaster. Formerly a radio astronomer at the California Institute of Technology, he is now cosmology consultant of the weekly science magazine New Scientist. The Magic Furnace, Marcus' second book, was chosen in Japan as one of the Books of the Year by Asahi Shimbun. In the UK, the Daily Mail called it "a dizzy page-turner with all the narrative devices you'd expect to find in Harry Potter". His latest book is called Quantum Theory Cannot Hurt You.
thinkahol *

Researchers chart long-shrouded glacial reaches of Antarctica: Huge rivers of ice are f... - 0 views

www.sciencedaily.com/...110818142741.htm

Researchers chart long-shrouded glacial reaches of Antarctica: Huge rivers ice are found flowing seaward from continent's deep interior

shared by thinkahol * on 21 Aug 11 - No Cached
  • thinkahol * on 21 Aug 11
     
    ScienceDaily (Aug. 19, 2011) - A vast network of previously unmapped glaciers on the move from thousands of miles inland to the Antarctic coast has been charted for the first time by UC Irvine scientists. The findings will be critical to tracking future sea rise from climate change.
thinkahol *

Does sexual equality change porn? - Pornography - Salon.com - 0 views

www.salon.com/...index.html

Does sexual equality change porn? - Pornography Salon.com

shared by thinkahol * on 13 Sep 11 - No Cached
  • thinkahol * on 13 Sep 11
     
    In what may feel like a flashback to the porn wars of the '60s, a new study investigates the link between a country's relative gender equality and the degree of female "empowerment" in the X-rated entertainment it consumes. Researchers at the University of Hawaii focused on three countries in particular: Norway, the United States and Japan, which are respectively ranked 1st, 15th and (yikes) 54th on the United Nations' Gender Empowerment Measure (GEM). To simplify their analysis, their library of smut was limited to explicit photographs of women "from mainstream pornographic magazines and Internet websites, as well as from the portfolios of the most popular porn stars from each nation." Then they set out to evaluate each image on both a disempowerment and an empowerment scale, using respective measures like whether the woman is "bound and dominated" by "leashes, collars, gags, or handcuffs" or "whether she has a natural looking body." Their hypothesis was that societies with greater gender equity will consume pornography that has more representations of "empowered women" and less of "disempowered women." It turned out the former was true, but, contradictory as it may sound, the latter was not. "While Norwegian pornography offers a wider variety of body types -- conforming less to a societal ideal that is disempowering to the average woman -- there are still many images that do not promote a healthy respect for women," the researchers explain. In other words, Norwegian porn showed more signs of female empowerment, but X-rated images in all three countries equally depicted women in demeaning positions and scenarios. This, the researchers surmise, "suggests that empowerment and disempowerment within pornography are potentially different constructs." So, gender equality is accompanied by sexual interest in a broader range of beauty types but not a decrease in porn's infantilization of females, use of dominating fetish gear on women or any of the other characteristics th
Sanny Y

The Number One Computer Tech Support Service - 1 views

Computer Tech Support Service offers the most outstanding computer support service. They have friendly computer support technicians who are very skilled in giving accurate and fast solutions to my ...

Computer support service

started by Sanny Y on 13 Sep 11 no follow-up yet
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