News tagged with radiation
Curry spice component may help slow prostate tumor growth
Curcumin, an active component of the Indian curry spice turmeric, may help slow down tumor growth in castration-resistant prostate cancer patients on androgen deprivation therapy (ADT), a study from researchers ...
Feb 10, 2012 |
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First prospective clinical trial of adaptive radiotherapy for head and neck cancer patients
Researchers led by a senior investigator at Hofstra-North Shore LIJ School of Medicine and The Feinstein Institute for Medical Research have released initial findings from a first-of-a-kind clinical trial in adaptive radiotherapy ...
Feb 09, 2012 |
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Ultraviolet protection molecule in plants yields its secrets
Lying around in the sun all day is hazardous not just for humans but also for plants, which have no means of escape. Ultraviolet (UV) radiation from the sun can damage proteins and DNA inside cells, leading ...
Feb 09, 2012 |
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Ultrasound can reliably diagnose hip dysplasia at age 6 months
Developmental dislocation (dysplasia) of the hip (DDH) is a common congenital condition in which a child's upper thighbone is dislocated from the hip socket. The condition can be present at birth or develop during a child's ...
Feb 09, 2012 |
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Bird populations near Fukushima are more diminished than expected
(PhysOrg.com) -- Low-level radiation in Fukushima Prefecture appears to have had immediate effects on bird populations, and to a greater degree than was expected from a related analysis of Chernobyl, an international ...
Feb 09, 2012 |
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ASTRO develops brain metastases guideline
The American Society for Radiation Oncology (ASTRO) has developed a guideline on the radiotherapeutic and surgical management for newly diagnosed brain metastases. It has been published in Practical Radiation Oncology (PRO), ...
Feb 08, 2012 |
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VLT takes most detailed infrared image of the Carina Nebula
(PhysOrg.com) -- ESO's Very Large Telescope has delivered the most detailed infrared image of the Carina Nebula stellar nursery taken so far. Many previously hidden features, scattered across a spectacular ...
Feb 08, 2012 |
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When worlds collide: Researchers harness supercomputers to understand solar storm, magnetosphere
If the sun is anything, it is reassuring. It rises, sets, and rises again, allowing us to grow crops, get tan, and power homes, just to name a few of humanity's most important life-sustaining functions. No ...
Space & Earth / Space Exploration
Feb 07, 2012 |
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Progress and promise in DIAL LIDAR
For climatologists and environmental policy makers who need to determine the flux of greenhouse gases (GHG), there are three paramount questions: Where is it, how much is there, and how is it moving? A new ...
Feb 06, 2012 |
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Size matters -- even for molecules
(PhysOrg.com) -- 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 ...
Feb 03, 2012 |
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Targeting tumors may help stop spread of breast, other cancers
(Medical Xpress) -- Cancer that has spread from the site of an original tumor to other places in the body is often viewed as a death sentence. But if there are just a few of those secondary tumors, called metastases, some ...
Feb 03, 2012 |
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Building a better light bulb
Scientists study the movement of charge carriers to design an organic LED that is energy efficient and still casts a warm, natural glow.
Feb 01, 2012 |
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First-of-its-kind head patch monitors brain blood flow and oxygen
A research team led by investigators at Mayo Clinic in Florida has found that a small device worn on a patient's brow can be useful in monitoring stroke patients in the hospital. The device measures blood oxygen, similar ...
Medicine & Health / Cardiology
Feb 01, 2012 |
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Sun delivered curveball of powerful radiation at Earth
A potent follow-up solar flare, which occurred Friday (Jan. 17, 2012), just days after the Sun launched the biggest coronal mass ejection (CME) seen in nearly a decade, delivered a powerful radiation punch ...
Space & Earth / Space Exploration
Feb 01, 2012 |
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New study shows correlation between summer Arctic sea ice cover and winter weather in Central Europe
Even if the current weather situation may seem to speak against it, the probability of cold winters with much snow in Central Europe rises when the Arctic is covered by less sea ice in summer. Scientists of the Research Unit ...
Space & Earth / Earth Sciences
Feb 01, 2012 |
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Radiation
In physics, radiation describes any process in which energy emitted by one body travels through a medium or through space, ultimately to be absorbed by another body. Non-physicists often associate the word with ionizing radiation (e.g., as occurring in nuclear weapons, nuclear reactors, and radioactive substances), but it can also refer to electromagnetic radiation (i.e., radio waves, infrared light, visible light, ultraviolet light, and X-rays) which can also be ionizing radiation, to acoustic radiation, or to other more obscure processes. What makes it radiation is that the energy radiates (i.e., it travels outward in straight lines in all directions) from the source. This geometry naturally leads to a system of measurements and physical units that are equally applicable to all types of radiation.
For more information about Radiation, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
