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DNA traces evolution of extinct sabertooths and the American cheetah-like cat
Toward the end of the last Ice Age, around 13,000 years ago, North and South America were home to a variety of large cats such as the sabertooths (Smilodon and Homotherium) and other now-extinct species known as the American lion-like cat (Panthera atrox) and cheetah-like cat (Miracinonyx trumani).   view more (2005-08-09)

Endosome-mediated signaling in plants
In a paper that will be published online in advance of its July 1st publication date, Drs. Niko Geldner, Joanne Chory and colleagues (The Salk Institute and HHMI) demonstrate that endosomes can function as signaling platforms in plants, as well as in animals.   view more (2007-06-19)

An unexpected outcome of atmospheric CO2 enrichment
Unseen belowground interactions impact the composition of natural plant communities. Mycorrhizae, symbiotic associations between soil fungi and plant roots, help plants acquire soil nutrients but also drain substantial carbon from plants. Whether mycorrhizae help or hinder plant growth depends upon... view more (2003-05-22)

Insurgental Biological Warfare Against Gipsy Moth
Specialists of the Institute of Taxonomy and Ecology of Animals (Siberian Branch, Russian Academy of Sciences) investigate peculiarities of struggle against Asian populations of Gipsy moth - one of the most widespread and economically significant forest pests. The methods applied in the North... view more (2005-04-29)

Scientists find stem cell switch
Scientists have discovered how plant stem cells in roots detect soil structure and whether it is favourable for growth.   view more (2007-07-27)

What makes a fungus virulent? It's lipase
Infection with the fungus Candida parapsilosis is a major problem for individuals in intensive care units, as well as for premature infants and immunocompromised adults. Despite this, little is known about which of its genes account for its virulence.   view more (2007-09-14)

Blast From the Past: the `Minoan` eruption of Santorini (Thera) @ the London `Catastrophes` conference
The mid-second millennium `Minoan` eruption of Santorini (Thera) was one of the largest volcanic eruptions known to have occurred during the Holocene. It is also one of the most controversial, with the eruption being blamed for many far-reaching environmental and societal events, most notably the... view more (2002-08-17)

Accelerometer backpacks aid study of gliding behavior in the 'flying' lemur
Berkeley -- The "flying" lemur of Malaysia is the champion of all gliding mammals, able to drop from the forest canopy, glide more than the length of two football fields, execute 90-degree turns and then alight gently on a tree trunk.   view more (2008-02-11)

The Mechanisms of Atmospheric Nucleation
Aerosol particles are ubiquitous in Earth's atmosphere, influencing the quality of life through their climatic and health effects and by affecting visibility. In recent years, the formation and growth of nanometer-scale particles have been observed in situ in many different atmospheric... view more (2003-11-06)

Joslin study indicates insulin receptors play a critical role in promoting islet growth
A new Joslin-led study has identified the insulin receptor as an important protein that promotes islet cell growth in mice whose bodies are unable to use insulin properly, or are insulin resistant, a precursor to type 2 diabetes.   view more (2007-04-03)

Genetic study shows humans have pushed orangutans to the brink of extinction
A new study published in the open-access journal PLoS Biology shows strong genetic evidence of a catastrophic collapse in orangutan populations living in the fragmented forests of the Kinabatangan Wildlife Sanctuary in Sabah, Malaysia.   view more (2006-01-24)

NASA Assists Search for Woodpecker Thought to be Extinct
Unlike its more famous cartoon cousin Woody the Woodpecker, the ivory-billed woodpecker is thought to be extinct, or so most experts have believed for over half a century.   view more (2006-08-07)

Ready meals need proper handling at home to prevent illness
Growing consumer appetite for ready-to-eat meals with a minimal preparation time and few preservatives has led to increased production and sales of chilled ready meals. Although the food industry has control measures in place to prevent growth of food poisoning organisms, consumers need to handle... view more (2002-02-11)

Growth factor signals influence balance between normal growth and cancerous growth
New research from The Children's Hospital of Philadelphia and the University of Pennsylvania School of Medicine deepens the understanding of how the growth hormone/IGF system is affected by another important actor: p53, the tumor suppressor gene that puts the brakes on cancer.   view more (2006-11-10)

An Anti-Frailty Pill for Seniors?
Researchers at the University of Virginia Health System report that a daily single oral dose of an investigational drug, MK-677, increased muscle mass in the arms and legs of healthy older adults without serious side effects, suggesting that it may prove safe and effective in reducing age-related... view more (2008-11-05)

More carbon dioxide may help some trees weather ice storms
The increased levels of carbon dioxide in the atmosphere predicted for later this century may reduce the damage that future ice storms will cause to commercially important loblolly pine trees, according to a new study.   view more (2006-08-16)

University of York set for major expansion
The University of York is set to double in physical size with a major expansion to its campus at Heslington on the south-east corner of York. It submitted an outline planning application today (Friday 30 April) for the site known as Heslington East. The expansion will see growth in existing... view more (2004-04-29)

Intrinsic eye protein halts angiogenesis
Dr. Jayakrishna Ambati, of the University of Kentucky, and Dr. Balamurali Ambati, of the Medical College of Georgia, have jointly published a paper in the journal Nature detailing major research discoveries in corneal avascularity and angiogenesis.   view more (2006-10-19)

Tropical plants go with the flow ... of nitrogen
Tropical plants are able to adapt to environmental change by extracting nitrogen from a variety of sources, according to a new study that appears in the May 7 early online edition of The Proceedings of the National Academy of Sciences.   view more (2007-05-08)

Growth gene linked to cancer
Growth gene linked to cancer   view more (1999-12-16)

The desert is dying
Researchers from University of Bergen have found that trees, which are a main resource for desert people and their flocks, are in significant decline in the hyper-arid Eastern Desert of Egypt.   view more (2007-02-14)

Risk of HIV transmission highest early in infection
New evidence suggests that the risk of HIV transmission may be highest in the early stages of infection. According to a study published in the April 1 issue of The Journal of Infectious Diseases, now available online, early infection accounted for nearly half of all transmission occurrences in an... view more (2007-03-06)

Significant differences in growth of male and female embryos after ICSI
There is a clear difference in growth rate between male and female pre-implantation embryos created by ICSI, but not after IVF, a scientist said today at the 20th annual conference of the European Society of Human Reproduction and Embryology.   Dr John Dumoulin, of the Academic... view more (2004-06-29)

New inhibitor has potential as cancer drug
Laboratory experiments have previously shown that cancer cells overproduce an enzyme, heparanase, which splits the body's own polysaccharide heparan sulfate into shorter fragments.   view more (2007-10-23)

Honey-bee products in cancer treatment and prevention
Natural honey-bee products such as propolis, royal jelly, caffeic acid, honey and venom may have applications in cancer treatment and prevention, say Croatian researchers in Journal of the Science of Food and Agriculture this month.   view more (2004-12-02)
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