News tagged with radiation damage
Ozone: Climate change boosts ultraviolet risk for high latitudes
(PhysOrg.com) -- Physicists at the University of Toronto have discovered that changes in the Earth's ozone layer due to climate change will reduce the amount of ultraviolet (UV) radiation in northern high ...
Space & Earth / Earth Sciences
Sep 06, 2009 |
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Researchers identify key enzyme in DNA repair pathway
Researchers have discovered an enzyme crucial to a type of DNA repair that also causes resistance to a class of cancer drugs most commonly used against ovarian cancer.
Jul 29, 2010 |
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Scientists identify novel approach to view inner workings of viruses
Since the discovery of the microscope, scientists have tried to visualize smaller and smaller structures to provide insights into the inner workings of human cells, bacteria and viruses. Now, researchers at the National Institute ...
Jan 12, 2012 |
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Seeing below the surface: New way to inspect advanced materials used to build airplanes
In recent years, many airplane manufacturers have started building their planes from advanced composite materials, which consist of high-strength fibers, such as carbon or glass, embedded in a plastic or metal ...
Nanotechnology / Nanomaterials
Mar 24, 2011 |
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Scientists discover source of cancer stem cells' resistance to radiation
Much to the dismay of patients and physicians, cancer stem cells — tiny powerhouses that generate and maintain tumor growth in many types of cancers — are relatively resistant to the ionizing radiation often used as therapy ...
Feb 04, 2009 |
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New strategy could lead to dose reduction in X-ray imaging
For more than a century, the use of X-rays has been a prime diagnostic tool when it comes to human health. As it turns out, X-rays also are a crucial component for studying and understanding molecules, and a new approach ...
Nov 22, 2011 |
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New research finds protein that protects cancer cells from chemo and radiation therapy
Research led by Daitoku Sakamuro, PhD, Assistant Professor of Pathology at LSU Health Sciences Center New Orleans and the LSUHSC Stanley S. Scott Cancer Center, has identified a protein that enables the activation of a DNA-repair ...
Mar 24, 2011 |
3 / 5 (1) |
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Biologists find way to reduce stem cell loss during cancer treatment
Biologists at the University of California, San Diego have discovered that a gene critical for programmed cell death is also important in the loss of adult stem cells, a finding that could help to improve the health and well-being ...
Sep 05, 2010 |
4.8 / 5 (4) |
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How do free electrons originate?
Scientists at Max Planck Institute of Plasma Physics (IPP) in Garching and Greifswald and Fritz Haber Institute in Berlin, Germany, have discovered a new way in which high-energy radiation in water can release slow electrons. ...
Jan 20, 2010 |
4.4 / 5 (16) |
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Research reveals key to world's toughest organism
(PhysOrg.com) -- A new study by Cornell researchers uncovers the details of how the world's toughest bacterium survives lethal radiation exposure.
Oct 19, 2009 |
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Findings show promise for nuclear fusion test reactors
Researchers have discovered mechanisms critical to interactions between hot plasma and surfaces facing the plasma inside a thermonuclear fusion reactor, part of work aimed at developing coatings capable of ...
Jul 27, 2010 |
4.7 / 5 (19) |
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Novel Nanoparticles Prevent Radiation Damage During Cancer Therapy
(PhysOrg.com) -- Nanoparticles covered with the natural pigment melanin may protect bone marrow from the harmful effects of anticancer radiation therapy, according to scientists at Albert Einstein College of Medicine of Yeshiva ...
Nanotechnology / Bio & Medicine
May 27, 2010 |
4.2 / 5 (5) |
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Cells can read damaged DNA without missing a beat
Scientists have shown that cells' DNA-reading machinery can skim through certain kinds of damaged DNA without skipping any letters in the genetic "text." The studies, performed in bacteria, suggest a new mechanism that can ...
Feb 09, 2010 |
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Size matters - even for molecules
Two electrons that are emitted from a large molecule by a single photon may originate from far apart within that molecule. In a recent study on hydrocarbon molecules consisting of one to five fused benzene ...
Apr 11, 2012 |
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Solving the mystery of how plants survive near Chernobyl
Twenty-two years after the Chernobyl nuclear power station accident in the Ukraine — the worst in history — scientists are reporting insights into the mystery of how plants have managed to adapt and survive ...
May 13, 2009 |
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