Search results for multiplication facts
Calculators okay in math class, if students know the facts first
Aug 19, 2008 |
4.3 / 5 (3) |
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Calculators are useful tools in elementary mathematics classes, if students already have some basic skills, new research has found. The findings shed light on the debate about whether and when calculators should be used in ...
Research Highlights Potential for Improved Solar Cells
Nanotechnology / Nanomaterials
Feb 10, 2009 |
4.5 / 5 (13) |
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(PhysOrg.com) -- A team of Los Alamos researchers led by Victor Klimov has shown that carrier multiplication—when a photon creates multiple electrons—is a real phenomenon in tiny semiconductor crystals and not a false observation ...
Sharing Now Might Help Kids Learn Advanced Math Later
May 21, 2008 |
3 / 5 (2) |
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Sharing might help young children become better people, but it might also make them better at math, according to preliminary findings of a study being conducted at North Carolina State University.
Researchers develop thin films showing promise for solar applications
Nanotechnology / Nanomaterials
Sep 08, 2009 |
4.1 / 5 (8) |
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Researchers at Ben-Gurion University of the Negev have developed thin films that exhibit carrier multiplication (CM). This development is of great interest for future solar cells.
Tiny crystals promise big benefits for solar technologies
Jan 05, 2006 |
4.4 / 5 (17) |
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Los Alamos National Laboratory scientists have discovered that a phenomenon called carrier multiplication, in which semiconductor nanocrystals respond to photons by producing multiple electrons, is applicable to a broader ...
Anxiety's hidden cost
Medicine & Health / Psychology & Psychiatry
Jun 23, 2009 |
5 / 5 (3) |
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The effect of anxiety on academic performance is not always obvious but new research funded by the Economic and Social Research Council suggests that there may be hidden costs. The research found that anxious individuals ...
Evolution coup: Study reveals how plants protect their genes
Sep 10, 2009 |
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Unlike animals and humans, plants can't run and hide when exposed to stressful environmental conditions. So how do plants survive? A new Université de Montréal study, published in the journal Proceedings of ...
Success comes at a cost, even for phages
Biology /
Jun 13, 2006 |
4 / 5 (1) |
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As many a mother may tell you, expending the energy necessary to raise a clutch of kids can shave years off one's life. Trade-offs between reproductive success and survival have been demonstrated for a wide variety of organisms, ...
3D TV -- Without the Glasses (w/ Video)
Oct 29, 2009 |
3.8 / 5 (12) |
11
(PhysOrg.com) -- Even with "active shutter" 3D technology for television sets, the wearing of special glasses is still required in order to get the proper experience. They aren't those red and blue or red and ...
A mathematical problem that just doesn't add up
Medicine & Health / Psychology & Psychiatry
May 04, 2007 |
4.1 / 5 (105) |
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Most of us share it and it seems a safe enough assumption: mathematical skills and performance develop and advance as students progress through their elementary school years. However, a new study by University of Notre Dame ...
Frog's immune system is key in fight against killer virus
Feb 27, 2009 |
5 / 5 (1) |
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(PhysOrg.com) -- Scientists from Queen Mary, University of London have discovered how changes to a frog's immune system may be the key to beating a viral infection which is devastating frog populations across the UK.
How do cells count?
Biology /
Jan 12, 2009 |
4 / 5 (1) |
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In the 13th January print edition of the journal Current Biology, Instituto Gubenkian de Ciencia researchers provide insight into an old mystery in cell biology, and offer up new clues to understanding cancer. Inęs Cunha ...
Researchers show how to divide and conquer 'social network' of cells
Nov 09, 2009 |
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On Noah's Ark animals came in twos: male and female. In human bodies trillions of cells are coupled, too, and so are the molecules from which they are composed. Yet these don't come in twos, they are regrouped ...
South African epidemic of schoolboy sexual abuse
Jul 29, 2008 |
4.3 / 5 (7) |
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By the age of 18 years, two in every five South African schoolboys report being forced to have sex, mostly by female perpetrators. A new study, reported in BioMed Central's open access journal International Journal for Eq ...
Avalanche photodiodes target bioterrorism agents
Jun 26, 2008 |
4 / 5 (1) |
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Researchers have shown that a new class of ultraviolet photodiode could help meet the U.S. military's pressing requirement for compact, reliable and cost-effective sensors to detect anthrax and other bioterrorism ...
