News tagged with irradiation

Nutrient supply after algal bloom determines the succession of the bacterial population

Algal blooms can considerably interfere with summer holidays by the sea. In the coastal zone of temperate regions a spring algal bloom is not a sign of excessive nutrient input, but most of all a consequence ...

Biology / Cell & Microbiology

created May 04, 2012 | popularity 5 / 5 (1) | comments 1 | with audio podcast

When ions get closer: New physical attraction between ions in quantum plasmas

Nowadays, ever smaller and more powerful computer chips are in demand. German physicists have discovered a new physical attraction that accelerates this progress.

Physics / Plasma Physics

created Mar 26, 2012 | popularity 4.5 / 5 (4) | comments 0 | with audio podcast

Study shows electron-beam irradiation reduces virus-related health risk in lettuce, spinach

(PhysOrg.com) -- A team of scientists studying the effects of electron-beam irradiation on iceberg lettuce and spinach has had its research published in the February issue of the leading microbiology journal, ...

Biology / Cell & Microbiology

created Feb 06, 2012 | popularity 5 / 5 (1) | comments 0

Earth's energy budget remained out of balance despite unusually low solar activity

(PhysOrg.com) -- A new NASA study underscores the fact that greenhouse gases generated by human activity -- not changes in solar activity -- are the primary force driving global warming.

Space & Earth / Earth Sciences

created Jan 30, 2012 | popularity 4.1 / 5 (13) | comments 26 | with audio podcast

Light makes write for DNA information-storage device

Researchers have demonstrated a write-once-read-many-times information-storage device, made of DNA embedded with silver nanoparticles, that uses ultraviolet light to encode data.

Nanotechnology / Nanophysics

created Jan 05, 2012 | popularity 4.7 / 5 (3) | comments 0 | with audio podcast

Development of world’s first functional polymer nanowire fabrication technology by pulsed laser irradiation

Japanese researchers selectively grew polymer nanowires using only irradiation with a pulsed laser, in a region limited to the area of irradiation. They also succeeded in imparting diverse functionalities ...

Nanotechnology / Nanomaterials

created Jan 05, 2012 | popularity not rated yet | comments 0

Blue light irradiation promotes growth, increases antioxidants in lettuce seedlings

The quality of agricultural seedlings is important to crop growth and yield after transplantation. Good quality seedlings exhibit characteristics such as thick stems, thick leaves, dark green leaves, and large white roots. ...

Biology / Other

created Dec 12, 2011 | popularity 5 / 5 (1) | comments 2

New 'smart' material could help tap medical potential of tissue-penetrating light

Scientists are reporting development and successful initial testing of the first practical "smart" material that may supply the missing link in efforts to use in medicine a form of light that can penetrate ...

Chemistry / Polymers

created Nov 16, 2011 | popularity 4.8 / 5 (4) | comments 0 | with audio podcast

Polymeric material has potential for noninvasive procedures

Scientists at the University of California, San Diego have developed what they believe to be the first polymeric material that is sensitive to biologically benign levels of near infrared (NRI) irradiation, enabling the material ...

Chemistry / Polymers

created Oct 03, 2011 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Gold nanoparticles bring scientists closer to a treatment for cancer

Scientists at the University of Southampton have developed smart nanomaterials, which can disrupt the blood supply to cancerous tumours.

Nanotechnology / Bio & Medicine

created Jul 07, 2011 | popularity 5 / 5 (3) | comments 0

Artificial light quality affects herbivore preference for seedlings

In horticultural production, growers often depend on systems that use artificial light to produce high-quality transplants. Although the systems are efficient, fluorescent lamps can produce plants with shorter shoots than ...

Biology / Plants & Animals

created Jun 22, 2011 | popularity 3 / 5 (1) | comments 0

Periodic structures in organic light-emitters can efficiently enhance, replenish surface plasmon waves

The irradiation of a metal surface with light or electrons can result in the formation of coherent electronic oscillations called surface plasmons, an effect ideal for applications such as optical communications ...

Physics / General Physics

created Jun 10, 2011 | popularity 4.7 / 5 (3) | comments 0

Irradiation underused to fight E. coli in foods

(AP) -- Zapping salad fixings with just a bit of radiation can kill dangerous E. coli and other bacteria - and food safety experts say Europe's massive outbreak shows wary consumers should give the long-approved ...

Medicine & Health / Health

created Jun 06, 2011 | popularity 4.5 / 5 (2) | comments 3

Explaining the mystery of the missing sunspots

Sunspots have been observed for about four centuries, since they were first reported by Galileo. Appearing in roughly eleven-year cycles of activity, sunspots are regions of strong and complex magnetic fields ...

Space & Earth / Space Exploration

created Apr 05, 2011 | popularity 4.4 / 5 (5) | comments 6 | with audio podcast

Therapeutic nanoparticles targeted to radiation treated tumors

Radiation and chemotherapy are common partners in anticancer therapy for solid tumors, but too often, the combined side effects associated with each mode of therapy can limit how aggressively oncologists can treat their patients. ...

Nanotechnology / Bio & Medicine

created Mar 28, 2011 | popularity not rated yet | comments 0 | with audio podcast

Irradiation

Irradiation is the process by which an object is exposed to radiation. The exposure can originate from various sources, including natural sources. Most frequently the term refers to ionizing radiation, and to a level of radiation that will serve a specific purpose, rather than radiation exposure to normal levels of background radiation. The term irradiation usually excludes the exposure to non-ionizing radiation, such as microwaves from cellular phones or electromagnetic waves emitted by radio and TV receivers and power supplies.

For more information about Irradiation, read the full article at Wikipedia.
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