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Lionel Jacques

IBM researchers make 12-atom magnetic memory bit - 0 views

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    Researchers have successfully stored a single data bit in only 12 atoms.
santecarloni

Rolling microcapsules repair damaged surfaces - physicsworld.com - 0 views

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    Researchers in the US have unveiled a new technique to repair nanometre-sized defects using oil-based microcapsules filled with a nanoparticle solution.
Tobias Seidl

Frontiers | Alternatives to Peer Review: Novel Approaches for Research Evaluation | Fro... - 6 views

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    Some new field of game for the ACT?
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    Very interesting paper!
Dario Izzo

Check your country impact on science!!! - 8 views

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    Did you know that papers in space science are among the most quoted? Check how your country is doing .... you will be surprised :)
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    In terms of country based quotations ("Most scited countries") I cannot access space science, only Geosciences, Immunology, Material Science, and Psychiatry & Psychology. But when I first saw the list of countries at the left under "Impact in Science" I saw Argentinia was on top, and USA was on last position. Yes, I was surprised, until I realised that is was just an alphabetical order. Did you see the same list?
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    scotland's a separate country. must be preparing for independence already. and it's highest percentage is for space science. crazy
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    Dajan, you need to click on the country you are interested in ....
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    Nooo, can't be THAT simple.
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    data a bit old .... newer data (but less well presented) at http://sciencewatch.com/ there you can also read: "The 20th century was largely dominated by the US as a major powerhouse of scientific research and innovation, with 40% of the papers indexed in the Web of Science fielded by US scientists in the 1990s. By 2009, that figure was down to 29%. The US now struggles to keep pace with increased output from Europe and Asia."
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    hottest space science paper in January 2012: Field: Space Science Article Title: Herschel Space Observatory An ESA facility for far-infrared and submillimetre astronomy Authors: Pilbratt, GL;Riedinger, JR;Passvogel, T;Crone, G;Doyle, D;Gageur, U;Heras, AM;Jewell, C;Metcalfe, L;Ott, S;Schmidt, M Journal: ASTRON ASTROPHYS, 518: art. no.-L1 JUL-AUG 2010 * ESTEC SRE SA, ESA Res & Sci Support Dept, Keplerlaan 1, NL-2201 AZ Noordwijk, Netherlands. * ESTEC SRE SA, ESA Res & Sci Support Dept, NL-2201 AZ Noordwijk, Netherlands. * ESTEC SRE OA, ESA Sci Operat Dept, NL-2201 AZ Noordwijk, Netherlands. * ESTEC SRE P, ESA Sci Operat Dept, NL-2201 AZ Noordwijk, Netherlands. * ESOC OPS OAH, ESA Mission Operat Dept, D-64293 Darmstadt, Germany. * ESAC SRE OA, ESA Sci Operat Dept, Madrid 28691, Spain.
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    Interestingly, Space Science is the only field in which my country has positive "Impact vs. world" value (even more interestingly as we don't even have a proper national space agency)...
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    this might also be an indication / point to an issue with their data concerning space science publications ... quite surprising indeed that all Europeans are doing so well in this field
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    Something should be wrong, for Spain I can read: Economics & Business 4.54 -28 Only minus 28!
santecarloni

Laser gyroscope measures the Earth's 'wobble' - physicsworld.com - 2 views

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    An international team of researchers have developed a new type of gyroscope that is the first to measure the "wobble" in the rotational axis of the Earth from a ground-based laboratory. Astronomers normally track this wobble by continuously monitoring the position of distant objects, such as quasars. But this new method will provide a much simpler and cheaper alternative to these large-scale astronomical readings, the scientists claim.
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    is this of any use for spacecraft?
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    mmm it's like saying that you can replace satellite tracking by accelerometers on-board satellites... for Leo: you'd better put an atomic gyro on a spacecraft these laser gyro are huge !
santecarloni

Four-wheel nanocar takes to the road - physicsworld.com - 1 views

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    A "four-wheel drive car" less than one billionth the length of an average SUV has been built and operated by researchers in the Netherlands and Switzerland.
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    "Molecular machines are common in nature. Motor proteins, for example, can move along a surface to transport molecular-sized cargo and are often used to build structures within living cells. " reminds me of the fantastic movie on what happens inside a cell ...
Lionel Jacques

Event-hiding "temporal cloak" demonstrated - 2 views

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    Last year researchers at Imperial College London proposed that along with being used to cloak physical objects metamaterials could also be used to cloak a singular event in time. A year later, researchers from Cornell University have demonstrated a working "temporal cloak" that is able to conceal a burst of light as if it had never occurred.
santecarloni

New 2D semiconductor could outperform silicon - physicsworld.com - 1 views

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    A new class of 2D semiconductor has been developed by researchers in the US. The free-standing quantum membranes, which are made of indium arsenide (InAs) and are just a few layers thick, have properties that are in stark contrast to the semiconductor layers used in conventional transistors.
Ma Ru

Error Undoes Faster-Than-Light Neutrino Results - 3 views

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    :-)
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    And this guy is 200 bucks ahead http://xkcd.com/955/
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    Well, it's not yet confirmed... That error would be worse than the magnetic moment of the muon about 10 years ago. There, it was "at least" a conflict of conventions used in the computer codes!
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    In a statement based on an earlier press release from the OPERA collaboration, CERN said two possible "effects" may have influenced the anomalous measurements. One of them, due to a possible faulty connection between the fiber-optic cable bringing the GPS signals to OPERA and the detector's master clock, would have caused the experiment to underestimate the neutrinos' flight time, as described in the original story. The other effect concerns an oscillator, part of OPERA's particle detector that gives its readings time stamps synchronized to GPS signals. Researchers think correcting for an error in this device would actually increase the anomaly in neutrino velocity, making the particles even speedier than the earlier measurements seemed to show. CERN's statement says OPERA scientists are studying the "potential extent of these two effects" but doesn't indicate which source of error (if either) is likely to outweigh the other. However, Lucia Votano, director of the Gran Sasso laboratory, says the "main suspicion" focuses on the optical-fiber connection. She adds that OPERA researchers deserve credit for "having tenaciously followed this particular evidence via checks completed in the last few days." The two effects will get a new round of tests in May, when the two labs are scheduled to make velocity measurements with short-pulsed beams designed to give readings much more precise than scientists have achieved so far.
LeopoldS

Tests of Parents Are Used to Map Genes of a Fetus - NYTimes.com - 0 views

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    "For the first time, researchers have determined virtually the entire genome of a fetus using only a blood sample from the pregnant woman and a saliva specimen from the father."
Jacco Geul

The sound of space discovery - 2 views

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    European research network GÉANT turns Voyager 1 & 2 data into a musical duet.
Thijs Versloot

Wall crawling gecko robots also work in space #ESA - 2 views

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    The cooperation took place through ESA's Networking/Partnering Initiative, which supports work carried out by universities and research institutes on advanced technologies with potential space applications.
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    really nice, especially since it is an idea that started in the team, led to an Ariadna study by Carlo Menon, RF in biomimetics who then got a research position at simon fraser univ, where he created his own biomimetics group menvra (http://menrva.ensc.sfu.ca) there, struggling as an italian in a canadian university doing space and not having access to the US space market ... the NPI was the first contract he got for a space resaerch project ... its fantastic to see his student now making headlines with this idea
Thijs Versloot

Real-time measurements inside a battery show dynamics of electrochemical processes (video) - 0 views

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    "As we start to sweep the potential, we didn't initially observe anything," said lead author Robert Sacci, a postdoctoral research fellow with ORNL's FIRST Energy Frontier Research Center. "Then we started seeing shadows-presumably polymeric SEI-forming into a dendritic pattern. It looks like a snowflake forming from the electrode." nice fractals.. as always
Thijs Versloot

The big data brain drain - 3 views

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    Echoing this, in 2009 Google researchers Alon Halevy, Peter Norvig, and Fernando Pereira penned an article under the title The Unreasonable Effectiveness of Data. In it, they describe the surprising insight that given enough data, often the choice of mathematical model stops being as important - that particularly for their task of automated language translation, "simple models and a lot of data trump more elaborate models based on less data." If we make the leap and assume that this insight can be at least partially extended to fields beyond natural language processing, what we can expect is a situation in which domain knowledge is increasingly trumped by "mere" data-mining skills. I would argue that this prediction has already begun to pan-out: in a wide array of academic fields, the ability to effectively process data is superseding other more classical modes of research.
Thijs Versloot

Offshore wind farms hold potential to weaken hurricanes - 2 views

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    What he found was that wind turbines "could disrupt a hurricane enough to reduce peak wind speeds by up to 92 mph and decrease storm surge by up to 79%."
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    It seems the topic is getting more and more popular and is no longer considered fringe research, as this is a paper from nature climate change!
Thijs Versloot

Computer as smart as a 4-year-old? Researchers IQ test new artificial intelligence system - 0 views

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    Artificial and natural knowledge researchers at the University of Illinois at Chicago have IQ-tested one of the best available artificial intelligence systems to see how intelligent it really is. Turns out it's about as smart as the average 4-year-old, they will report July 17 at the U.S. Artificial Intelligence Conference in Bellevue, Wash.
Tom Gheysens

Dragonflies can see by switching 'on' and 'off' - 0 views

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    Researchers at the University of Adelaide have discovered a novel and complex visual circuit in a dragonfly's brain that could one day help to improve vision systems for robots.
Beniamino Abis

Snake Robots for Exploration - 1 views

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    The researchers are busy working on a feasibility study assigned to them by the ESA. The idea is that by combining a rover that can navigate over large distances with a snake robot that can crawl along the ground and can get into inaccessible places, so many more possibilities could be opened up, e.g. collecting samples from tight spots that the rovers cannot reach.
LeopoldS

Peter Higgs: I wouldn't be productive enough for today's academic system | Science | Th... - 1 views

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    what an interesting personality ... very symathetic Peter Higgs, the British physicist who gave his name to the Higgs boson, believes no university would employ him in today's academic system because he would not be considered "productive" enough.

    The emeritus professor at Edinburgh University, who says he has never sent an email, browsed the internet or even made a mobile phone call, published fewer than 10 papers after his groundbreaking work, which identified the mechanism by which subatomic material acquires mass, was published in 1964.

    He doubts a similar breakthrough could be achieved in today's academic culture, because of the expectations on academics to collaborate and keep churning out papers. He said: "It's difficult to imagine how I would ever have enough peace and quiet in the present sort of climate to do what I did in 1964."

    Speaking to the Guardian en route to Stockholm to receive the 2013 Nobel prize for science, Higgs, 84, said he would almost certainly have been sacked had he not been nominated for the Nobel in 1980.

    Edinburgh University's authorities then took the view, he later learned, that he "might get a Nobel prize - and if he doesn't we can always get rid of him".

    Higgs said he became "an embarrassment to the department when they did research assessment exercises". A message would go around the department saying: "Please give a list of your recent publications." Higgs said: "I would send back a statement: 'None.' "

    By the time he retired in 1996, he was uncomfortable with the new academic culture. "After I retired it was quite a long time before I went back to my department. I thought I was well out of it. It wasn't my way of doing things any more. Today I wouldn't get an academic job. It's as simple as that. I don't think I would be regarded as productive enough."

    Higgs revealed that his career had also been jeopardised by his disagreements in the 1960s and 7
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    interesting one - Luzi will like it :-)
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