Tag: "sun" at biology news

Computer graphics spills from milk to medicine

...t appear blue during the day but turn green as the sun sets. The new research eliminates a long-standing roadblock and describes a way to use theoretical math and physics to generate realistic computer graphics of materials that absorb some light and are not made of perfect spheres. In other words, th...

Caffeine and exercise can team up to prevent skin cancer

...m on finding novel ways to protect our bodies from sun damage....

Other highlights from the July 10 JNCI

... mortality rates are lower in regions with greater sun exposure, which leads to vitamin D synthesis in the skin. Kana Wu, M.D., Ph.D., of the Harvard School of Public Health in Boston and colleagues measured the levels of vitamin D in the blood plasma of 372 colorectal cancer patients and 739 controls...

'Sundried tide' -- silent, natural disaster

...esearchers aligned what the tide would do with the sun and weather patterns and ran an analysis of the ri...llowing a rare extremely low tide during which the sun had been shining from a clear sky. These "natural disasters" occur silently but can devastate the...

Scientists ponder plant life on extrasolar Earthlike planets

...ends on what size and light intensity of star or sun the planet feeds off, and the extrasolar planets ... of chlorophyll, which harnesses the energy of the sun to make sugars for metabolism. But our plants arent completely efficient they waste a little bit o...

Lack of sun does not explain low vitamin D in elderly who are overweight

...ts University (USDA HNRCA) have found that lack of sun exposure may not account for low levels of vitamin...ucasian men and women aged 65 and over about their sun exposure over a previous three-month period. Individuals reported how much time they spent outdoors,...

Study to probe how healthy younger adults make use of genetic tests

...style factors such as diet, exercise, smoking, and sun exposure are major contributors to developing common diseases. "The Multiplex Initiative will give us an unprecedented opportunity to learn about the public's receptivity to genetic susceptibility testing and give insights into the added role this...

Quantum secrets of photosynthesis revealed

...thesis that would help us effectively tap into the sun as a clean, efficient, sustainable and carbon-neutral source of energy. Towards this end, Fleming and his research group have developed a technique called two-dimensional electronic spectroscopy that enables them to follow the flow of light-induced...

3.2 billion-year-old surprise: Earth had strong magnetic field

...ory, letting the bombardment of radiation from the sun slowly erode its early atmosphere. Theories of Earths field say its generated by the convection of our liquid iron core, but scientists have always been curious to know when Earths solid inner core formed because this process provides an important en...

Gender linked to development of skin cancer

...io -- Inherent gender differences instead of more sun exposure may be one reason why men are three time...spend more time outside and are less likely to use sun protection than women. While that may be true, scientists at Ohio State have shown that there may...

Researchers find suntan's 'master regulator'

...re abundant and superficial keratinocytes react to sun exposure. "It makes sense that you would want the ...bly inadvertently activating p53 and, with it, the sun tanning pathway," Fisher speculated. "We might now be able to find ways to interfere with this proce...

'Guardian of the genome' protein found to underlie skin tanning

...n people's seemingly universal desire to be in the sun an activity that, by promoting tanning, can reduc...body, has a powerful role in protecting us against sun damage in the skin." In a study published last year, Fisher and his colleagues found that ultravio...

Solar energy conversion offers a solution to help mitigate global warming

...am on thermoelectric materials takes heat from the sun and converts it directly to electricity. The Physics Today article is based on the conclusions contained in the report of the Basic Energy Sciences Workshop on Solar Energy Utilization sponsored by the U.S. Department of Energy. Crabtree and Lewis ...

Carnegie Mellon researchers urge regulators to rethink strategies for soot emission

...r dust form droplets in clouds and affect how much sun is able to pass through the cloud to earth, as well as the amount of moisture that is returned to earth. Both clouds and sunlight play key roles in climate change. The effects of particulate matter were identified as key to uncertainty in a recent re...

What is wrong with intelligent design?

...claims about the positions of the earth, moon, and sun are taken into account. Similarly, ID claims make predictions when they are supplemented by auxiliary claims. The problem is that these auxiliary assumptions about the putative designer's goals and abilities are not independently justified. Surpri...

AAAS releases video and first board consensus statement on climate change

...we bury our fish and food very shallow because the sun is so hot, the sun might heat up the sand and then spoil all our food. That's what I'm worried about." Weyiouanna s...

The insides of clouds may be the key to climate change

...clouds and change cloud thickness, affect how much sun is able to pass through the cloud to Earth, as well as the amount of moisture that's returned to Earth. Both moisture and sunlight play significant roles in climate change. "Think of it as having two clouds--one made of cotton and the other of Sty...

Little creatures, big blooms

...nkton creatures, eaten by fish, that depend on the sun for their survival. There are dozens of species of these creatures, but the ones that produce toxic blooms concern her the most. From my work in the area, I know there are at least two particular dinoflagellate species an Alexandrium-type and Ling...

Story tips from the Department of Energy's Oak Ridge National Laboratory

...ira@ornl.gov ] ENERGY -- Electricity from the sun . . . ORNL engineers are working to convert their sunlight-based hybrid lighting technology into a multifunctional system that also produces electricity. Using advanced optics and concentrating photovoltaic materials, researchers are developing a...

Animal studies in the land of the midnight sun illuminate biological clocks

The temperature hovers around freezing, but the sun is up for 24 hours each day. How do animals living...ng that kept a 24 hour periodicity. At Barrow, the sun travels in a circle overhead for 82 days, but at midnight the circle is tipped to the north. "We p...

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(Date:4/16/2014)... memories improves during childhood, associated with structural changes ... and parietal cortices. New research from UC Davis ... this crucial time. Eventually, that could give insights ... into and during adolescence and affect memory, such ... the middle of the brain, the hippocampus plays ...
(Date:4/16/2014)... composed of Dr. Martin Prechtl, Leo Heim and their ... has discovered a new method of generating hydrogen using ... is of particular interest when it comes to fuel ... and mild hydrogen production using water and formaldehyde", have ... . , Among other applications, the new approach can ...
(Date:4/15/2014)... away in Hartford, Connecticut, a Puerto Rican community is ... that is so authentic it has caught the attention ... Gregory J. Anderson (University of Connecticut) took a close ... markets of Hartford and uncovered evidence that gives new ... using for years: home is in the kitchen. , ...
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