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Lighter in Biological News

Interaction of just 2 genes governs coloration patterns in mice

... conserved across mammals that display lighter bellies and darker backs, from mice to tuxedo ... the beach mice's coats have become markedly lighter than that of their mainland brethren. "In ... coasts. These 'beach mice' have evolved a lighter pigmentation than their mainland relatives, a ...

Beetle shell inspires brilliant white paper

... bright white coating for paper. This higher performance could result in lighter weight paper with a very high degree of whiteness. lighter paper would also reduce transportation costs, simultaneously reducing the ...

Overweight mums have chubby bubs

... life had a head start on health. "The less milk the babies had and the lighter they were the higher were levels of a hormone which is known to be ... of Obesity , also shows that pups that were undernourished remained lighter as adults, while those that were over-fed as babies continued to be fatter ...

Sierra Nevada rose to current height earlier than thought, say Stanford geologists

... in a systematic decrease in the ratio of heavy water molecules to lighter ones in the remaining water vapor. Because so much of the airborne ... on the leeward side of the range. By determining the ratio of heavier to lighter hydrogen isotopes preserved in volcanic glass and comparing it with ...

August 2009 Geology and GSA Today media highlights

... in seawater is through bacteria, a process known as bacterial sulfate reduction. Because bacteria are more efficient at converting isotopically lighter sulfate (32SO4) to sulfide, sulfide -- and the pyrite that it forms -- tends to be lighter, on average, than the original sulfate. Additionally, ...

DOE-funded research projects win 46 R&D 100 Awards for 2009

... storage. Thermomagnetic Processing Technology - enhances materials performance with 85 percent higher stretch capability strength, enabling lighter weight designs. The technology uses superconducting magnets to cut down on energy use in the typical heat treat processing. High magnetic fields ...

Healing wounds with lasers, vehicles that drive themselves, other cutting-edge optics

... precious battery power. Flexible displays are an attractive alternative to existing liquid crystal display (LCD) models because they would be lighter and more durable, consume less power, and could ultimately be rolled up and stuffed in a pocket between uses. The technology needed to make such ...

Skin color clue to nicotine dependence

... in skin and hair -- may be placing darker pigmented smokers at increased susceptibility to nicotine dependence and tobacco-related carcinogens than lighter skinned smokers, according to scientists. "We have found that the concentration of melanin is directly related to the number of cigarettes smoked ...

Breakthrough made in energy efficiency, use of waste heat

... unique is the use of microchannel heat transfer components and an efficient "vapor expander" to provide high heat transfer rates and smaller, lighter and more efficient heat exchangers. "Right now, about 75 percent of the fuel energy in most stationary diesel generators used to produce ...

'Delicious' new grape debuts

... vintage) rated equal to those of 'Carlos' (a popular cultivar for wine) by a panel of 30 winemakers. The color is a medium to light red, generally lighter than many red muscadine wines. ...

Scientists find black gold amidst overlooked data

... Depending on the angles of the camera and of the light reflection, oil creates contrasting swaths that can show up in airborne images as either lighter or darker than the surrounding waters. The detection and monitoring of oil spills and seeps by satellite is not new. Visible, infrared, ...

U of T technique put to use to test clean up of contaminated groundwater

... hydrocarbon contaminants actually come in two types called isotopes, explains Sherwood Lollar. "When microbes degrade contaminants, they prefer the lighter isotope carbon 12 over the heavier isotope carbon 13. The resulting change in the ratio of these isotopes in the contaminant itself is a dramatic and ...

CACI Awarded a Prime Position on $500 Million, Multiple-Award Program with Biometrics Operations and Support Services

... multiple customers in support of the warfighter, national defense, and homeland security. From equipping military operations with smaller, faster, lighter biometrics collection and screening technologies for fingerprint/iris/face recognition, to improving biometric data sharing among agencies, CACI is ...

New World post-pandemic reforestation helped start Little Ice Age, say Stanford scientists

... right thing, because that is exactly what you would expect from reforestation." During photosynthesis, plants prefer carbon dioxide containing the lighter isotope of carbon. Thus a massive reforestation event would not only decrease the amount of carbon dioxide in the atmosphere, but would also leave ...

CT scans reveal that dinosaurs were airheads

... of the Cleveland Cavaliers," Witmer said. Witmer suggests that the air spaces helped lighten the load of the head, making it about 18 percent lighter than it would have been without all the air. That savings in weight could have allowed the predators to put on more bone-crushing muscle or even to ...

Fiddler crabs reveal honesty is not always the best policy

... is identical to the lost one, but some species "cheat" by growing a new claw that looks like the original but is cheaper to produce because it is lighter and toothless. According to lead author of the study, Dr Simon Lailvaux of the University of New South Wales: "What's really interesting about ...

ORNL nanotechnologies big winners in DOE call

... and body armor, lightweight components for advanced braking systems and lower-cost high-performance ceramic-based systems that would result in lighter vehicles. This material's advantages include improved mechanical, electrical and thermal properties compared to traditional refractory materials that ...

Yale journal finds nanomaterials may have large environmental footprint

... cleaner processes. "Research in this issue reveals the potential of environmental impacts from nanomanufacturing to offset the benefits of using lighter nanomaterials," says Gus Speth, dean of the Yale School of Forestry & Environmental Studies. "To date, most attention has focused on the possible ...

Slicing solar power costs

... germanium, the Utah researchers say. Bamberg says germanium-based solar cells are used on most spacecraft because they are more efficient and lighter than silicon-based solar cells. By making it more attractive economically to use efficient germanium solar cells on rooftops, the weight and size of ...

Moderate quantities of dirt make more rain

... centimetre. By contrast, moderate concentrations of aerosols delay the fall of rain, as initially less water evaporates, and more and therefore lighter drops form. These rise again and reach altitudes where the atmosphere is so cold that they freeze. This releases heat, just as condensing does. The ...

Scientists overcome nanotech hurdle

... Brown, BBSRC Director of Science and Technology, said: "Bionanotechnology holds great promise for the future. We may be able to create stronger, lighter and more durable materials, or new medical applications. Basic science and techniques for working at the nanoscale are providing the understanding ...

Strange molecule in the sky cleans acid rain, scientists discover

... know that although water is one of the most common substances found on the planet, it has unusual properties. For example, the solid form - ice - is lighter than the liquid form and floats. Water also boils at a much higher temperature than would be expected from its chemical structure. The cause of ...

'Small' research at MSU leads to advances in energy, electronics

... A Michigan State University researcher and his students have developed a nanomaterial that makes plastic stiffer, lighter and stronger and could result in more fuel-efficient airplanes and cars as well as more durable medical and sports equipment. The material xGnP ...

Scientists confirm that parts of earliest genetic material may have come from the stars

... analysis shows that the nucleobases contain a heavy form of carbon which could only have been formed in space. Materials formed on Earth consist of a lighter variety of carbon. Lead author Dr Zita Martins, of the Department of Earth Science and Engineering at Imperial College London, says that the ...

Shrimps see beyond the rainbow

... fleeing andflirting. Commonly, polarisation vision is quite restricted: in its simplest form, different directions of polarisation show up as lighter or darker patches you can see this yourself by looking at clear blue sky with polarising sunglasses. But polarisation is more subtle than this: the ...

65-million-year-old asteroid impact triggered a global hail of carbon beads

... by the asteroid impact, since once the particles are ejected, heavier particles should fall back to Earth sooner (and travel shorter distances) than lighter particles. Last, the scientists estimated the total mass of carbon cenospheres ejected by the asteroid collision, assuming a global distribution, ...

UTMB inventions win University of Texas System commercialization awards

... by UTMB anesthesiology professor George Kramer, is a new smart IV pump to deliver precise amounts of fluids to trauma and burn victims. The device is lighter and less expensive than current IV pumps. In combination with newly developed patient-monitoring and computerized autonomous care systems, it has the ...

When the chips are down -- soak them!

... for 30 mins and soaking them for 2 hours reduced the formation of acrylamide by up to 23%, 38% and 48% respectively but only if they were fried to a lighter colour. The jury is still out on chips that are fried to a deep, dark brown. ...

Heavy rainfall on the increase

... areas of the UK had seen a decreasing contribution of extreme rainfall during the summer. The updated measurements indicate that this trend towards lighter summer rainfall reversed during the last decade, but it is too early to tell whether this new trend will continue into the future. So far it is ...

Body weight influenced by thousands of genes

... less than controls (indicating that the missing genes contribute to heavier body weight), while another 3 percent weighed more (contributing to lighter weight). Extrapolating from the total number of genes in the mouse genome, this implies that over 6,000 genes could potentially contribute to ...

Metal foam has a good memory

... In the world of commercial materials, lighter and cheaper is usually better, especially when those attributes are coupled with superior strength and special properties, such as a material's ...

Better protection for biomedial devices could result from Rutgers-Camden research

... devices, like pacemakers or artificial joint replacements, and making multilayered structures, like television, cell phone, or laptop displays lighter and less reliant on voltage. The primary advantage of organic electronics, like polymer LEDs used in a variety of displays, is the lower power ...

Portable electricity, life-like prosthetics on the way

... technology already is more useful than many people realize. Piezoelectrics are involved in everything from making an airbag deploy to how a lighter produces a flame. Although piezoelectrics are naturally occurring, they have their limits. If an application requires a level of energy conversion ...

'Heftier' atoms reduce friction at the nanoscale, study led by Penn researcher reveals

... dependent, researchers found, on the adsorbates natural atomic vibration frequencies. The heavier an atom, the lower its vibrational frequency. The lighter an atom, the faster the vibrations and thus the faster the dissipation of energy from the contact in the sample. Keeping the atoms chemically ...

Red hair and freckles...

... lead to red-coloured hair. We can therefore assume that part of the Neanderthal population may have had red or light coloured hair and possibly even lighter coloured skin," according to the paleoanthropologist. Whether red hair in Neanderthals was considered particularly erotic or more of a turnoff is, ...

European lead in reading past climates from ice cores

... eruptions. And the ratio of different isotopes of oxygen in the ice is a virtual thermometer that tells us past temperatures. The more of the lighter isotope, oxygen 16, there is, the colder it was. Stocker says: Ice-drilling is an area in which Europe has taken a decisive technological and ...

UC Riverside biologist receives prestigious MacArthur Fellowship

... at UCR does extensive mechanical testing of silk fibers from different spider species. Some silks are one-tenth the diameter of a human hair, lighter than cotton, yet ounce for ounce up to five times tougher than steel. As a result, they are being considered in improving a wide variety of products ...

Soft drinks alone do not affect children's weight

... children of normal body weight. However researchers determined that only 5% of this extra energy (approx 14 calories) came from soft drinks. Indeed, lighter children tended to have a higher intake of sugar (also referred to as non-milk extrinsic sugars [NMES]) overall than those in the highest BMI ...

Restoring sight, advances in fertility treatments and better visibility for pilots at FIO

... as a control, since gorilla sperm are slower and weaker than human sperm. Since X sperm generally are heavier and swim slower, while Y sperm are lighter and swim faster, it is also possible to use this new technique to separate sperm carrying the gene for a female child from sperm carrying the gene ...

Beyond batteries: Storing power in a sheet of paper

... We see this as a technology thats just right for the current energy market, as well as the electronics industry, which is always looking for smaller, lighter power sources. Our device could make its way into any number of different applications. The team of researchers has already filed a patent ...
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