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New discovery suggests trees evolved camouflage defense against long extinct predator

Many animal species such as snakes, insects and fish have evolved camouflage defences to deter attack from their predators. However research published in New Phytologist has discovered that trees in New Zealand have evolved a similar defence to protect themselves from extinct giant birds, provi...

Sea Grant awards $820,000 for research under EPA's Long Island Sound study

STONY BROOK, NY March 9, 2009 -- The Sea Grant programs of Connecticut and New York have awarded nearly $820,000 in Long Island Sound Study research grants to five projects that will look into some of the most serious threats to the ecological health of Long Island Sound, a water body designate...

Iowa Power Fund advances researcher’s long quest for efficient solar power

AMES, Iowa In Vikram Dalal's 37 years of researching solar technology, the efficiency of thin film solar cells for homes and buildings has improved from 1 percent to about 7 percent. Dalal, the Thomas M. Whitney Professor of Electrical and Computer Engineering at Iowa State University and dire...

A little nitrogen can go a long way

MADISON, WI, SEPTEMBER 2, 2008 Varying the rate of crop production inputs such as fertilizer and seed makes intuitive sense, as farmers have long observed differences in crop yield in various areas of a single field. The availability of spatial yield information from combines equipped with yield m...

The secret to long life may not be in the genes

This release is available in Spanish . A research on the bone health of one of the oldest persons in the world, who recently died at the age of 114, reveals that there were no genetic modifications which could have contributed to this longevity. The research team, directed by Universitat ...

New study shows that fetal cells to treat Parkinson's disease may not function long term

Neurons grafted into the brain of a patient with Parkinsons disease fourteen years ago have developed Lewy body pathology, the defining pathology for the disease, according to research by Jeffrey H. Kordower, PhD, and associates and published in the April 6 issue of Nature Medicine. The finding ...

Brain cell growth diminishes long before old age strikes, animal study shows

Even early in adulthood, aging begins to slow the mind's growth -- but it does not have to stop it altogether, suggests a Princeton University study on the brains of adult monkeys. A team of neuroscientists has found that soon after marmoset monkeys reach adulthood, the rate at which new neura...

Cornell patents a pink lily look-alike that blooms all summer long

Mauve Majesty is one cool lily look-alike. This new pinkish-purple ornamental flower, just patented by Cornell, can last for two weeks in a vase, but when left in the garden, it blooms all summer long in the cooler, northern states until the first hard freeze in the fall. The new hybrid of the In...

Columbine flowers develop long nectar spurs in response to pollinators

In flowers called columbines, evolution of the length of nectar spurs--the long tubes leading to plants' nectar--happens in a way that allows flowers to match the tongue lengths of the pollinators that drink their nectar, biologists have found. The researchers were Justen Whittall of the Univers...

Smallpox outbreak: How long would it take for vaccines to protect people? Would it work?

In the event of a smallpox outbreak in the United States, how long would it take for a vaccinSLU scientist leads national studye to start protecting Americans by stimulating an immune response? A new national study led by Saint Louis University School of Medicine will attempt to answer this ques...

Researchers make long DNA 'wires' for future medical and electronic devices

Ohio State University researchers have invented a process for uncoiling long strands of DNA and forming them into precise patterns. Ultimately, these DNA strands could act as wires in biologically based electronics and medical devices, said L. James Lee, professor of chemical and biomolecular eng...

At long last, scientists figure out how plants grow

It has been one of the great mysteries in plant science. Scientists have known since 1885 that the plant growth hormone auxin exists. They've known of its dramatic effects on plant growth and development since the 1930s. But only now do scientists know how it works. In this week's Nature, Indi...

Amino acids in nectar enhance butterfly fecundity: A long awaited link

The fascinating interactions between flowers and their pollinators have resulted in a spectacular diversity of plants. In order to entice pollinators such as bees, flies or butterflies to visit and successfully pollinate their flowers, plants have evolved intriguing mechanisms and attractants, of w...

Scientists find universal rules for food-web stability

... the relationships between their species remaining constant over relatively long periods of time. Understanding complex systems such as food webs present... can, in principle, be stable, i.e., whether its species can coexist in the long term," says Thilo Gross from MPIPKS. Complex ecosystems can thus be simulat...

AGU journal highlights -- Aug. 6, 2009

...of the Deep Space Network, made measurements from 22 May to 16 June 2006. The authors detected nonthermal microwave emission in bursts several minutes long during a period of about 3 hours that coincided with a large dust storm on 8 June 2006. On the basis of the spectrum of this radiation, the authors co...

Carnegie Mellon's Jean VanBriesen leads research team on Monongahela River

...ul, farsighted effort to avert a problem before it arises. Carnegie Mellon's research resonates with the mission of the Colcom Foundation, which has a long history of assessing and addressing the cause before it's necessary to respond to the symptom. It's a privilege to support Carnegie Mellon's preventat...

Scary ancient spiders revealed in 3-D models, thanks to new imaging technique

... Eophrynus prestivicii . Previous studies of fossilised remains of this creature suggested that it could have hunted on the open forest floor. It had long legs that enabled it to run through leaf litter to chase, catch and kill its prey. The new models reveal, for the first time, that Eophrynus pres...

Lead-based consumer paint remains a global public health threat

...acturersparticularly the large, multinational companies we analyzed with more depth in the current studyshould knowingly distribute a product that has long been known to be dangerous to people." Clark says calls for a global ban on the use of lead in paintssuch as the one in made in his 2006 paperapp...

Sustainable agriculture at the ESA Annual Meeting

...ng developed," she says. "Building up predator communities takes time, but the systems are more stable and will provide more ecosystem services in the long term." Reduced tilling improves soil microbe biodiversity The idea of using biological instead of chemical methods to create healthy croplands ...

Animal and plant communication at the ESA Annual Meeting

...n insects investigate, they slide into the pitcher and meet a watery demise. The plant then dissolves the insect and uses it for food. Biologists have long assumed that in addition to their nectar-producing glands that attract prey to a potential food source, the plants' bright colors mostly shades of re...

The way you eat may affect your risk for breast cancer

... PHILADELPHIA How you eat may be just as important as how much you eat, if mice studies are any clue. Cancer researchers have long studied the role of diet on breast cancer risk, but results to date have been mixed. New findings published in Cancer Prevention Research , a journal...

Holding breath for several minutes elevates marker for brain damage

...nea (breath-holding) can damage the brain over the long term. "The results indicate that prolonged, vo...the blood suggests that holding one's breath for a long time disrupts the blood-brain barrier, they said. ... competitive sport. Competitive events include how long divers can remain underwater, how far they can swi...

New hope for fisheries

...ighly managed ecosystems are improving" says Hilborn. "Yet there is still a long way to go: of all fish stocks that we examined sixty-three percent remained...on. "That choice can be painful for fishermen in the short term, but in the long term it benefits fish, fishermen, and our ocean ecosystems as a whole." ...

Global curbs on overfishing are beginning to work

...ws' for several regions in the US, Iceland and New Zealand. "These highly managed ecosystems are improving," says Dr Hilborn. "Yet there is still a long way to go: of all fish stocks that we examined 63 per cent remained below target and still needed to be rebuilt." According to Dr Worm, there is s...

Structure of protective protein in the eye lens revealed

...y on their three-dimensional structure. In the first instance, proteins are long chains of amino acids, like a long piece of woolen thread. So-called chaperones help them to fold in the desir...

Leicester research paves way for first use in Europe of an insect to fight invasive plant

...thus lacking any population resistance was a bonus for a Biological Control Program. Like Britain Japan is not particularly large, but it is extremely long and straddles a number of degrees of latitude and has many different habitats. After an extensive search, our molecular research finally identified th...

Nanoparticle-delivered 'suicide' genes slowed ovarian tumor growth

...ty of Maryland, said this report illustrates significant progress in targeted therapy. "In oncology we have been studying ways to kill tumors for a long time, but much of this has run up against the real estate principle of location, location, location," he said. "In other words, an effective therapy i...

'Microfluidic palette' may paint clearer picture of biological processes

...eath the chamber, each access port connects to the long tail of a Y-shaped channel etched into a second la... do so almost entirely by diffusion. Therefore, as long as a constant flow of fluid is maintained through ...ndependent gradient forms that remains constant as long as flow rate into the system does not change. Over...

Jet-propelled imaging for an ultrafast light source

...h an instrument called a free electron laser (FEL). The x-rays will be delivered 120 times a second in pulses only a tenth of a trillionth of a second long about the time it takes light to travel the width of a human hair. These brief, bright pulses offer a novel approach to the problem of protein struct...

Bizarre walking bat has ancient heritage

...etitors and predators." A small secretive creature with velvety fur, the lesser short-tailed bat is New Zealand's only terrestrial mammal: it spends long periods on the ground in heavily forested areas, hunting insects and seeking out fruit, nectar and pollen. It also appears to have evolved a specia...

Nottinghamshire Police First Law Enforcement Agency to Deploy ForensicSoft in United Kingdom

...ys, and many more. With SAFE's use of Windows, and the rapid and consistent availability of Windows-based device drivers, the forensic market has been long awaiting such a product. "Like most Law Enforcement Digital Forensics Units, we are constantly looking for ways to streamline our procedures w...

Freshwater fish at the top of the food chain evolve more slowly

...fish food," says co-author Brian O'Meara of the National Evolutionary Synthesis Center. "But they're hard to catch," says O'Meara. Biologists have long known that certain head and body shapes make some centrarchids better at catching fish than others. To catch, kill, and swallow fish prey, it helps to...

Maternal, paternal genes' tug-of-war may last well into childhood

... in a direction most favorable, and least costly, to that parent. "Compared to other primates, human babies are weaned quite early, yet take a very long time to reach full nutritional independence and sexual maturity," says author David Haig, George Putnam Professor of Organismic and Evolutionary Biolo...

Researchers team up to provide new hope for childhood hunger

... greenhouse and during in-country studies. Test and validate improved cassava varieties in Nigeria and Kenya in limited, controlled trials. long Term Goals: beyond 10 years Deploy effective strategies to treat severe malnutrition in young children with AIDS in sub-Saharan Africa. Dis...

After dinosaurs, mammals rise but their genomes get smaller

...ht non-mammalian animals and three plants, specifically with regard for the long terminal repeat (LTR) sequences of transposable elements, a curious sort of...ble elements constitute as much as 45 percent of an individual's total DNA. long terminal repeat sequences, part of that figure, make up about 8 percent of ...

Key OSU water research receives national funding

..."It's both an economic and ecological issue, mainly because water-use efficiency by people, plants and wildlife affects everyone and everything in the long run," he said. "Water, by its very nature, is a highly interconnected and integrated natural system." The study also is expected to pay dividends t...

121 breeding tigers estimated to be found in Nepal

...ncreased in Chitwan but decreased in Bardia and Shuklaphanta," said Mr. Anil Manandhar, Country Representative, WWF Nepal. "In spite of the decade long insurgency, encroachment, poaching and illegal trade, the present numbers is a positive sign, but we can't remain unworried. The declining numbers in ...

Discovery to aid in future treatments of third-world parasites

...the most important of the neglected tropical diseases, is caused by infection with parasitic helminths of the genus Schistosoma . These parasites are long lived (>10 years) and dwell within blood vessels, where they produce eggs that become the focus of intense, chronic inflammatory responses. In severe ...

Cancer's distinctive pattern of gene expression could aid early screening and prevention

...ive. Epigenetic changes actually are more common than the genetic mutations long known to put people at risk for cancer and other diseases and they are prob...e another result of this initiative, Dr. Bhalla says. "We know that long before anyone tells you that you have a tumor, methyl groups have been put ...

Scientists track impact of DNA damage in the developing brain

...cal blueprint for assembling and sustaining life. Diseases like cancer have long been associated with unrepaired damage to both strands of DNA. Single-stran...est in single-strand DNA repair. This study focused on Xrcc1, a protein long recognized as the master regulator of a pathway essential for single-strand...
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