Ecologists see the primeval wood for the trees
...000, the Dutch ecologist Frans Vera challenged the prevailing ecological view of ancient woodland as closed canopy forest by arguing that ancient woodlands would have resembled modern parkland because of the action of large grazing animals such as aurochs (primitive cattle), tarpan (wild horses), deer and wild ...B-15A iceberg's close encounter monitored by Envisat
...e extent, ice shelves and iceberg movement. Often prevailing currents transport icebergs far from their initial calving areas way across Antarctica, as with B-15D, another descendant of B-15, which has travelled a quarter way counterclockwise (westerly) around the continent at an average velocity of 10 km a da...UBC prof's research challenges prevailing theory of how new species evolve
... isolated by distance. The research challenges the prevailing theory among evolutionary biologists that species evolve only when separated by a geographical barrier. The findings, published in the January 21 issue of Science magazine, have broad implications for preserving biological diversity and endangered sp...'Man the Hunter' theory is debunked in new book
...ashington University in St. Louis goes against the prevailing view and argues that primates, including early humans, evolved not as hunters but as prey of many predators, including wild dogs and cats, hyenas, eagles and crocodiles. Despite popular theories posed in research papers and popular literature, early...Discovery offers cancer prevention, diagnosis, treatment hopes
...ion of where cancer cells originate, there are two prevailing theories: Either a single stem cell is the target for the process to begin, or any highly specialized, or "differentiated," cell can be the target cell. The problem with the second theory, said Trosko, is that for a differentiated cell one that is a...Growth in the sea comes down to a struggle for iron
...n the east do not appear to grow as readily. Since prevailing winds tend to blow iron rich dust off the Asian continent into the Pacific, it may be that phytoplankton closer to the source of that dust may be primed to respond differently. Wells and his colleagues will be studying the possibility that small var...First real-time view of developing neurons reveals surprises, say Stanford researchers
...," said Smith. His previous work had supported the prevailing idea that neurons need a period of fine-tuning before establishing their final identity. Still, the experiments mark the first time researchers have been able to watch neurons in an entire region of the brain as they fire one by one in real time. The...Research breakthrough in the understanding of the spread of cholera
...and pilgrimage could be considered as combined and prevailing modes of dissemination of cholera disease. Kashi, leader of the Technion team, added, "It is surprising that we could have a new basic finding on V. cholera, one of the most studied bacteria in the last century. This finding gives us the first hint ...Two-part blood pressure control suggests new approach to hypertension therapy
...es in the kidneys that affect salt excretion. "The prevailing view holds that the kidneys play a dominant role in the maintenance of blood pressure," Coffman said. "While abnormalities in other elements, such as the blood vessels, might perturb the system, it's been thought that the kidneys could adjust accordi...For sardine and anchovy, El Nio events do not always have the same effects
... able to adapt and exploit a "loophole" inside the prevailing conditions which were unfavourable to their development. When this episode began in 1997, upwellings persisted in some areas very close to the coast (about 1 km). The anchovy populations, highly abundant at the time owing to the influence of a cold ...Lung cancer vaccine trial continues at UK's Markey Cancer Center
...his research. " said Hirschowitz "UK is one of the prevailing lung cancer vaccine centers in the U.S."...Unconventional brain circuits offer clues to insomnia-obesity connection
...the extreme plasticity of the hypocretin system to prevailing conditions. That sensitivity and adaptability makes sense, given the neurons' role as the body's natural alarm, rousing one from slumber in response to external cues, Horvath said. However, the structure of the system might also explain the prevalenc...Gladstone investigators discover how resting T cells avoid HIV infection
...ghly susceptible to HIV infection. "Until now, the prevailing belief has been that HIV failed to infect resting T-cells due to a simple lack of some essential factor or nutrient," says Greene, a professor of medicine, microbiology and immunology at the University of California, San Francisco. "This study now sh...Study finds enzyme activity promotes rare form of leukemia, offers potential target for new drugs
...omponent is attached to the histone protein. "The prevailing model is that methylation on histones serves as a docking site," Zhang said. "It will recruit proteins that 'read' this histone modification, and it's those proteins that directly have an impact on gene expression - either activating or silencing a g...New collision looks imminent for B-15A iceberg
...waters for feeding. During the spring of this year prevailing currents took B-15A slowly past the Drygalski ice tongue. A full-fledged collision failed to take place, but a glancing blow broke the end off Drygalski in mid-April. The stretch of Victoria Land coast parallel to B-15A's current position is unusual...Protein helps regulate the genes of embryonic stem cells
...component is attached to the histone protein. The prevailing model is that methylation on histones serves as a docking site for proteins that "read" this histone modification, and it's those proteins that directly have an impact on gene expression - either by activating or silencing a gene. "Diversity is deter...Burnt coal from the age of dinosaurs sheds light on today's global warming
...Scientists have long debated what causes OAEs. The prevailing theory is that a release of massive amounts of methane into the ocean is the root cause. The methane, in turn, oxidizes creating colossal amounts of carbon dioxide in the ocean and atmosphere, which depletes the oceans of oxygen, warms the planet, an...From sound analysis to nicotine addiction
... of the classical Athenian polis and to revise the prevailing stereotypes. Using a novel methodological approach, characterised most markedly by innovative networking of archaeological and historical research, they aim to demonstrate that the historical development of the Hellenistic city-state cultures and the...Cloning advance: Researchers demonstrate direct transfer of terminally differentiated cell nuclei
...nsfer. The findings also necessitate a revision of prevailing ideas about the genomic plasticity of differentiated somatic cells....Textbook explanation of mRNA translation may need rethinking
... as previously assumed. This finding questions the prevailing model for RNA translocation. According to the textbook model EF-G provides the energy needed for the translocation phase of translation by bringing GTP into the ribosome where GTP is subsequently hydrolysed into GDP. Andrei Zavialov, Vasili Hauryliu...