Tag: "modern" at biology news
Proteaceae spread by continental drift and transoceanic dispersal
...ly. Our results show that ancestors of some of the modern
Proteaceae must have crossed the Atlantic and Indian Oceans. Thus, in Africa, for example, the spectacular genus Protea is truly Gondwanan, but 250 species from other genera that occur in the fynbos vegetation (literally, fine leaved shrubs) of the h...
An early ape shows its hand
...aptation and unique form of locomtion that left no modern
What we can learn from the biggest extinction in the history of Earth
...rue: The deep geologic record provides context for modern
events. We may miss very important processes or un...e short-term processes we observe operating in the modern
world with the very long time scales seen in the geologic record," said Seth Finnegan, a postdoctora...
Census of Marine Life historians detail collapse of bluefin tuna population off northern Europe
...filiated researchers release the latest results of modern
electronic fish tagging efforts off Ireland and in...f Mexico Bluefin Tuna Breeding Area Yet another modern
tagging experiment has yielded important new insights into the vital bluefin breeding area in the Gu...
Beyond Mesopotamia: A radical new view of human civilization reported in Science
...for thousands of kilometers across to the areas of modern
India and Pakistan, according to Lawler. While M... between Mesopotamia and the Indus River valley in modern
day India and Pakistan. The researchers are just starting to sketch out this new landscape, but its ...
Taming the anthrax threat
...emia in essentially all people infected. Even with modern
ICU support, the mortality rate for infections that progress to this stage is greater than 50 percent. To understand what happens in the anthrax microbe as it activates inside the defender macrophages, Bergmans team used DNA microarrays, a techno...
High rates of HIV infection documented among young Nepalese girls sex-trafficked to India
...mand for commercial sex is critical to ending this modern
day form of female slavery....
Stem cell therapy rescues motor neurons in ALS model
...apies for diseases that have proved intractable to modern
medicine, a team of scientists from the University of Wisconsin-Madison has shown it is possible to rescue the dying neurons characteristic of amyotrophic lateral sclerosis (ALS), a fatal neuromuscular disorder also known as Lou Gehrig's disease. T...
Jan Lwe awarded 2007 EMBO Gold Medal
...ther. He has a fearless approach to all aspects of modern
structural biology and we are delighted that the EMBO Gold Medal has been awarded to someone with such strong structural interests. In addition to the EMBO Gold Medal, Lwe has received several other awards and accolades, including the Max-Perutz Pr...
The inside dope
...a bit of carbon mixed in. To produce materials for modern
electronics, small amounts of impurities are introduced into silicon a process called doping. It is these impurities that enable electricity to flow through the semiconductor and allow designers to control the electronic properties of the material. ...
Study points to new way to predict death risk from torn aorta
...focuses on a phenomenon that can easily be seen on modern
medical-imaging scans: the presence of blood clots in the channel created when the layers of the aorta separate like two layers of an onion. This channel, called the false lumen, runs alongside the true lumen, which is the hollow middle area of the a...
Bumblebees make bee line for gardens, National Bumblebee Nest Survey finds
...e decline is thought to be linked to the impact of modern
farming methods on bumblebees' food plants. But as well as food, bumblebees need nesting sites for queens to start new colonies in spring. Gardens are attractive nest sites for bumblebees for many reasons.Osborne says: The diversity of garden featu...
Adult survivors of childhood leukemia exercise less, worsening high risk for obesity and illness
...RT than they were 20 years ago, Dr. Oeffinger says modern
chemotherapy for ALL may also lead to decreased levels of physical activity, and needs further study. To reduce the long-term negative effects of chemotherapy on childhood cancer survivors, researchers hope to teach children and their families health...
American Chemical Society's Weekly PressPac -- July 18, 2007
...es C&EN associate editor Linda Wang. The design of modern
sandpaper, technically called a coasted abrasive, involves a complex interplay between the chemical properties of the abrasive material, adhesive, and the backing material, notes Wang. In her short feature, one of the ongoing series known as Whats Th...
Did pterosaurs feed by skimming?
..., palaeontology often relies on extrapolating from modern
species. Scientists identify shared anatomical fea...techniques. They compared the forces acting on the modern
skim-feeding bird, genus Rynchops, with those likely to occur on a pterosaur. Big was beautiful for ...
Probing biology's dark matter
...p, which dramatically revolutionized computers and modern
electronics. Microfluidics is following the track of silicon chips and promises to revolutionize biology in the same manner. The microfluidic chip designed by Quake and his colleagues for the current study is equipped with tiny chambers and valves t...
New research proves single origin of humans in Africa
... Competing theories on the origins of anatomically modern
humans claim that either humans originated from a ...of Zoology, explained: "The origin of anatomically modern
humans has been the focus of much heated debate. Our genetic research shows the further modern
How plants learned to respond to changing environments
...ecently evolved counterparts when transferred into modern
flowering plants. The lycophyte group, which evolved 400 million years ago, were the first plants to evolve vascular tissues - specialized tissues for transporting water and nutrients through the plant. This group of plants also have the genes inv...
CU researchers discover evidence of very recent human adaptation
...y anthropologists for decades that as anatomically modern
humans migrated out of Africa and experienced different climates and sunlight levels, their skin colors adapted to the new environments. However, the study found no evidence of differences in genes that control brain development among the various geo...
Tomorrow's green nanofactories
...or detecting cancer, and semiconductors for use in modern
electrical deviceseverything from computers to cell phones. Unlike traditional semiconductor or battery manufacturing which requires expensive and toxic chemicals, Belchers nanofactories generate little waste, grow at room temperature, and promise...
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