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Het nieuws
Planet EduSense
  • Google heeft woensdag een nieuwe functie aan de zoekmachine toegevoegd. Google Instant biedt bij het intikken van slechts een deel van de zoekopdracht meteen resultaat. De aanpassing moet de gebruiker tijd besparen.
    9 September 2010, 7:42 am
  • Here's an interesting and funny look at 526,000 OkCupid users, divided into groups by race and gender and all the the things each groups says it likes or is interested in. While it is far from being definitive, the groupings give a glimpse of what makes each culture unique. According to the results white men like nothing better than Tom Clancy, Van Halen, and golfing.

    Read more of this story at Slashdot.


    9 September 2010, 5:27 am
  • Sonny Yatsen writes "A new study suggests that the Viking Landers might have found organic compounds on Mars, but failed to recognize them because of the methodology used to detect organics. The findings may suggest specific strategies that would improve on the way organic compounds are detected on the red planet."

    Read more of this story at Slashdot.


    9 September 2010, 2:01 am
  • An anonymous reader writes "Swedish researchers have devised a way to turn bioluminescent jellyfish into solar cells. It works like this: the green fluorescent protein (GFP) that makes the Aequorea victoria glow is simply dripped onto a silicon dioxide substrate between two electrodes. The protein works itself into strands between the electrodes. When ultraviolet light is shined on the circuit, voila, the GFP absorbs photons and emits electrons, generating a current. The GFP-powered cells work like dye-sensitized solar cells, but don't require expensive materials such as titanium dioxide."

    Read more of this story at Slashdot.


    9 September 2010, 12:19 am
  • MexiCali59 writes "Four of California's largest school districts will be trying something new on eighth-grade algebra students this year: giving them iPads instead of textbooks. The devices come pre-loaded with a digital version of the text, allowing students to view teaching videos, receive homework assistance and input assignment all without picking up a pen or paper. If the students with iPads turn out to do improve at a faster pace than their peers as expected, the program could soon spread throughout the Golden State."

    Read more of this story at Slashdot.


    8 September 2010, 10:55 pm
  • eldavojohn writes "News is out of BP's report on the gulf spill that shifts some of the blame on to other companies like Transocean that worked with BP in erecting the Deepwater Horizon rig. If you were affected by the spill, you might find the video, executive summary and 193 page report an interesting read. The summary outlines six or seven major failures in safety and engineering that all built up to the deaths of eleven workers and widespread contamination of the gulf. From incorrectly using seawater instead of drilling fluid to misinterpreting pressure test results, this report is just BP's side of the story as the blowout preventer has been pulled up and is still on its way to NASA where it will be analyzed by government investigators who will be able to compile their own report."

    Read more of this story at Slashdot.


    8 September 2010, 7:10 pm
  • Jamie is helping bring our childhood fantasies/nightmares to life with a link that says "Andrei Rhode, a researcher involved with the project, said that existing optical tweezers are able to move particles the size of a bacterium a few millimeters in a liquid. Their new technique can move objects one hundred times that size over a distance of a meter or more."

    Read more of this story at Slashdot.


    8 September 2010, 6:26 pm
  • sciencehabit writes "To find out if certain dance moves are more attractive to women than others, researchers recruited a bunch of college guys and used motion-capture to create avatars of them dancing. When women watched the avatars (2 videos included in story), the men they found most attractive were those who kept their heads and torsos moving without flailing their arms and legs. The researchers say dancing is thus an honest signal to women of the man's strength and health, just as it is in crabs and hummingbirds, who also move in special ways to attract mates."

    Read more of this story at Slashdot.


    8 September 2010, 4:48 pm
  • Steeds meer meisjes zijn in ons land slachtoffer van de nieuwste cyberpesttrend 'bezemen'. Daarbij plaatsen jongens filmpjes van leeftijdsgenoten op Youtube, met smerige teksten en soms adresgegevens erbij. De pakkans is klein en het effect groot.
    8 September 2010, 4:32 pm
  • Ernesto Guido writes "Two small asteroids (2010 RF12 & 2010 RX30) will pass within the Moon's distance of Earth today, September 08, 2010." One is 6-14 meters and the other is 10-20, so even if they change course, don't expect Bruce Willis to be called in.

    Read more of this story at Slashdot.


    8 September 2010, 3:45 pm
  • Trailrunner7 writes "Threatpost has a guest column by Robert Hansen (aka Rsnake) about the long-term effects of snake-oil security products. 'I've talked about this a few times over the years during various presentations but I wanted to document it here as well. It's a concept that I've been wrestling with for 7+ years and I don't think I've made any headway in convincing anyone, beyond a few head nods. Bad security isn't just bad because it allows you to be exploited. It's also a long term cost center. But more interestingly, even the most worthless security tools can be proven to "work" if you look at the numbers.'"

    Read more of this story at Slashdot.


    8 September 2010, 2:12 pm
  • cortex writes with an excerpt from the L.A. Times: "In a first step toward helping severely paralyzed people communicate more easily, Utah researchers have shown that it is possible to translate recorded brain waves into words, using a grid of electrodes placed directly on the brain. ... The device could benefit people who have been paralyzed by stroke, Lou Gehrig's disease or trauma and are 'locked in' — aware but unable to communicate except, perhaps, by blinking an eyelid or arduously moving a cursor to pick out letters or words from a list. ... Some researchers have been attempting to 'read' speech centers in the brain using electrodes placed on the scalp. But such electrodes 'are so far away from the electrical activity that it gets blurred out,' [University of Utah bioengineer Bradley] Greger said. ... He and his colleagues instead use arrays of tiny microelectrodes that are placed in contact with the brain, but not implanted. In the current study, they used two arrays, each with 16 microelectrodes."

    Read more of this story at Slashdot.


    8 September 2010, 11:10 am
  • Onlangs zijn twee woordenboekwidgets gelanceerd door Van Dale. Hiermee wordt (gratis) toegang geboden tot meer dan 170.000 verklaringen van Nederlandse woorden en vertalingen van en naar het Engels, Frans, Duits, Spaans, Italiaans, Portugees en Zweeds.
    8 September 2010, 6:59 am
  • I'm Not There (1956) writes "Sociologist Clifford Nass is talking about how people think of their computers as something like human beings. In one of his experiments, Nass found that people are more willing to 'help' computers when the computer helped them previously: 'When people were then asked to help optimize the screen resolution on a computer where the program had been "helpful," they were much more likely to do so than with the less helpful version.' He also found that people evaluating software's performance were more forgiving if the evaluation was done on the same computer the software was tested on. Nass has recently published the book The Man Who Lied to His Laptop, in which he 'uses our interactions with machines to investigate how human relationships could be improved.'"

    Read more of this story at Slashdot.


    8 September 2010, 12:29 am
  • Iftekhar25 writes "The NY Times is running an article about soaring unemployment rates for IT in the US (6 percent) despite a tech sector that is thirsting for engineering talent. Quoting: 'The chief hurdles to more robust technology hiring appear to be increasing automation and the addition of highly skilled labor overseas. The result is a mismatch of skill levels here at home: not enough workers with the cutting-edge skills coveted by tech firms, and too many people with abilities that can be duplicated offshore at lower cost. That's a familiar situation to many out-of-work software engineers, whose skills start depreciating almost as soon as they are laid off, given the dynamism of the industry.'"

    Read more of this story at Slashdot.


    7 September 2010, 11:01 pm
  • Tommy Christopher, who writes for mediate.com, has reporting in his blood, so much so that he livetweeted every part of his recent heart attack. "I gotta be me. Livetweeting my heart attack. Beat that!" and "This is not like the movies. Most deadpan heart attack evar. Still hurts even after the morphine," were among his updates as he was rushed to the hospital. Christopher is now in stable condition after recovering from emergency surgery.

    Read more of this story at Slashdot.


    7 September 2010, 9:11 pm
  • Trailrunner7 writes "The United States has a responsibility to take a leadership role in securing the Internet against both internal and external attackers, a duty that the federal government takes very seriously, the country's top military cybersecurity official said Tuesday. However, Gen. Keith Alexander, director of the National Security Agency and commander of the US Cyber Command, provided virtually nothing in the way of details of how the government intends to accomplish this rather daunting task. 'We made the Internet and it seems to me that we ought to be the first folks to get out there and protect it,' Alexander said. 'The challenge before us is large and daunting. But we have an obligation to meet it head-on.' It's unlikely that any of Alexander's comments Tuesday will do much to quiet the criticisms of the Obama administration's security efforts thus far. Speaking mostly in generalities, Alexander emphasized the administration's commitment to the Comprehensive National Cybersecurity Initiative, a plan developed by the Bush administration and recently partially de-classified by Obama administration officials."

    Read more of this story at Slashdot.


    7 September 2010, 7:27 pm
  • SpuriousLogic writes "Does happiness rise with income? In one of the more scientific attempts to answer that question, researchers from Princeton have put a price on happiness. It's about $75,000 in income a year. They found that not having enough money definitely causes emotional pain and unhappiness. But, after reaching an income of about $75,000 per year, money can't buy happiness. More money can, however, help people view their lives as successful or better. The study found that people's evaluations of their lives improved steadily with annual income. But the quality of their everyday experiences — their feelings — did not improve above an income of $75,000 a year. As income decreased from $75,000, people reported decreasing happiness and increasing sadness, as well as stress. The study found that being divorced, being sick and other painful experiences have worse effects on a poor person than on a wealthier one."

    Read more of this story at Slashdot.


    7 September 2010, 6:45 pm
  • A recent NYT piece explores the never-ending quest for password-based security, to which reader climenole responds with a snippet from ReadWriteWeb that argues it's time to think more seriously about life beyond passwords, at least beyond keeping a long list of individual login/password pairs: "These protective measures don't go very far, according to the New York Times, because hackers can get ahold of passwords with software that remotely tracks keystrokes, or by tricking users into typing them in. The story touches on a range of issues around the problem, but neglects to mention the obvious: the march toward a centralized login for multiple sites."

    Read more of this story at Slashdot.


    7 September 2010, 6:02 pm
  • Barence writes "The United Arab Emirates has its own Chinese-style firewall to weed out pornography and other 'unsavory' content. But as PC Pro's correspondent has found out, the firewall has more than a few holes in it. ISP helplines routinely suggest proxy server software that circumvents the filters. Access to Flickr is blocked, in case citizens' eyes should fall upon a naked buttock, but The Pirate Bay, which 'offers a range of bottoms to suit every need, including midget and donkey bottoms for anybody having a really slow afternoon – remains blissfully undisturbed.' 'Ultimately, I'm quite glad the UAE's authorities block websites, and thrilled that they're so inept at it,' concludes PC Pro's writer. 'Just like everybody in Dubai, all they've done is made me a master of internet chicanery.'" Guess that depends how closely they're watching the evaders.

    Read more of this story at Slashdot.


    7 September 2010, 5:15 pm
  • An anonymous reader writes "Ireland's Computer Emergency Response Team differs from what you can find in most other countries, since it's not government-backed and relies mainly on the good will of several security professionals. In this interview, the founder and head of the CERT, Brian Honan, talks about how the CERT was formed, what equipment they use and what challenges they face in their daily work without having a government to back them up."

    Read more of this story at Slashdot.


    7 September 2010, 3:42 pm
  • De stichting Gast in de Klas heeft een online databank voor het primair, voortgezet en middelbaar beroepsonderwijs. In de databank komen vraag en aanbod van gastlessen, lespakketten, projecten en excursies bij elkaar.De online databank wordt deze maand met verscheidene activiteiten op scholen onder de aandacht gebracht. Op 1 oktober wordt de campagne afgesloten met een onderwijsdebat .
    7 September 2010, 3:30 pm
  • Nederland moet voorkomen dat kwetsbare groepen buiten de informatiesamenleving vallen. Dat zei kroonprins Willem-Alexander dinsdag tijdens een toespraak op de Amsterdamse beurs.
    7 September 2010, 1:01 pm
  • Augmented Reality (AR) heeft sinds de opkomst van smartphones met camera’s, GPS en kompassen een sprong genomen van iets dat alleen in onderzoekslaboratoria werd gebruikt naar de dagelijkse realiteit.
    7 September 2010, 12:58 pm
  • Dactique en ICT&E zijn een samenwerkingsverband aangegaan. Het eerste initiatief dat hieruit voortkomt, bestaat uit een digibord-studiereis naar Canada. Het centrale thema van deze reis is de duurzame implementatie van het digibord. De inhoudelijke expertise zal worden geleverd door digibordspecialist Katinka van den Brink van Dactique. Organisatie: Bob Hofman.
    7 September 2010, 12:56 pm
  • telomerewhythere writes "Michael Strano and his team at MIT have made a self-assembling and indefinitely repairable photovoltaic cell based on the principle found in chloroplasts inside plant cells. 'The system Strano's team produced is made up of seven different compounds, including the carbon nanotubes, the phospholipids, and the proteins that make up the reaction centers, which under the right conditions spontaneously assemble themselves into a light-harvesting structure that produces an electric current. Strano says he believes this sets a record for the complexity of a self-assembling system. When a surfactant is added to the mix, the seven components all come apart and form a soupy solution. Then, when the researchers removed the surfactant, the compounds spontaneously assembled once again into a perfectly formed, rejuvenated photocell.'"

    Read more of this story at Slashdot.


    7 September 2010, 11:17 am
  • 8500 interactieve opgaven over verhoudingen, breuken, procenten en decimale getallen. Het succes van het eerste programma uit de rekenserie van Muiswerk Educatief is geweldig: Getallen 1 heeft binnen 10 maanden na de lancering meer dan 20.000 enthousiaste gebruikers. Dat vraagt om meer en gelukkig: er is meer. Deze week verscheen het tweede deel van de serie. Maak kennis met Verhoudingen 1.
    7 September 2010, 9:31 am
  • Hello,

    If you have ideas about how we can improve the on line OpenERP Book, please feel free to post your comments here!

    Els
    7 September 2010, 8:04 am
  • Expertisecentrum voor ict in het onderwijs Kennisnet organiseerde eind augustus 2010 voor het derde jaar op rij zomercursussen. Tijdens die sessies worden docenten, schoolbestuurders en ict-medewerkers
    7 September 2010, 6:50 am
  • jamie tips a post at Phil Plait's Bad Astronomy blog about an extremely unusual astronomical phenomenon originating from a binary system about 3000 light years away. Quoting: "The name of this thing is AFGL 3068. It's been known as a bright infrared source for some time, but images just showed it as a dot. This Hubble image using the Advanced Camera for Surveys reveals an intricate, delicate and exceedingly faint spiral pattern. ... Red giants tend to blow a lot of their outer layers into space in an expanding spherical wind; think of it as a super-solar wind. The star surrounds itself with a cloud of this material, essentially enclosing it in a cocoon. In general the material isn't all that thick, but in some of these stars there is an overabundance of carbon in the outer layers which gets carried along in these winds. ... AFGL 3068 is a carbon star and most likely evolved just like this, but with a difference: it's a binary. As the two stars swing around each other, the wind from the carbon star doesn't expand in a sphere. Instead, we see a spiral pattern as the material expands."

    Read more of this story at Slashdot.


    7 September 2010, 1:25 am
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