ScienceDaily Environment Headlines -- for Saturday, September 24, 2011 ~ techdeck

Sabtu, 24 September 2011

ScienceDaily Environment Headlines -- for Saturday, September 24, 2011

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ScienceDaily Environment Headlines

for Saturday, September 24, 2011

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Aboriginal Australians: The first explorers (September 23, 2011) -- In an exciting development, researchers have, for the first time, pieced together the human genome from an Aboriginal Australian. The results re-interpret the prehistory of our species. ... > full story

No harm to mice testes from BPA in utero: Data on female mice less encouraging (September 23, 2011) -- Male mice whose mothers were exposed to either moderate or high levels of bisphenol A while pregnant did not grow up to show any adverse effects to their reproductive systems by several measures, according to a new study. Data on female mice is still forthcoming but less encouraging. ... > full story

Ecologists use power of network science to challenge long-held theory (September 23, 2011) -- For decades, ecologists have toiled to nail down principles explaining why some habitats have many more plant and animal species than others. Much of this debate is focused on the idea that the number of species is determined by the productivity of the habitat. Shouldn't a patch of prairie contain a different number of species than an arid steppe or an alpine tundra? Maybe not, says an international team of scientists that pooled its resources to re-evaluate the relationship between species numbers and habitat productivity. ... > full story

Mother’s occupation while pregnant can increase risk of asthma in children (September 23, 2011) -- Mothers who are exposed to particular agents during pregnancy could give birth to children with a higher risk of asthma, according to new research. ... > full story

Unprecedented role reversal: Ground beetle larvae lure amphibians and prey upon them (September 23, 2011) -- Usually it's the frog that catches the unsuspecting bug for a tasty snack, but in an unprecedented predator-prey role reversal, a certain group of ground beetle larvae are able to lure their amphibious would-be predators and consume them with almost 100% success. In a new study, researchers begin to describe how these larvae are able to pull off this feat. ... > full story

Decoding vaccination: Researchers reveal genetic underpinnings of response to measles vaccine (September 23, 2011) -- Researchers are hacking the genetic code that controls the human response to disease vaccination, and they are using this new cipher to answer many of the deep-seated questions that plague vaccinology, including why patients respond so differently to identical vaccines and how to minimize the side effects to vaccination. ... > full story

Archaeologists uncover evidence of large ancient shipyard near Rome (September 23, 2011) -- Archaeologists, excavating Portus - the ancient port of Rome, believe they have discovered a large Roman shipyard. The team has uncovered the remains of a massive building close to the distinctive hexagonal basin or 'harbor', at the center of the port complex. ... > full story

Virus discovery helps scientists predict emerging diseases (September 23, 2011) -- Fresh insight into how viruses such as SARS and flu can jump from one species to another may help scientists predict the emergence of diseases in future. ... > full story

Solar activity can affect re-entry of UARS satellite (September 23, 2011) -- The Upper Atmosphere Research Satellite (UARS) is headed toward Earth, but it hasn't been easy to precisely determine the path and pace of UARS because space itself changes over time -- in response to incoming energy and particles from the sun. ... > full story

Cannabinoids after a traumatic experience may prevent post-traumatic stress symptoms, rat study suggests (September 23, 2011) -- Administration of cannabinoids (in the form of synthetic marijuana) after experiencing a traumatic event blocks the development of post-traumatic stress disorder-like symptoms in rats, according to a rat study conducted by researchers in Israel. ... > full story

New targets for the control of HIV predicted using a novel computational analysis (September 23, 2011) -- Over 25 years of intensive research have failed to create a vaccine for preventing HIV. A new computational approach has predicted numerous human proteins that the human immunodeficiency virus requires to replicate itself -- "a powerful resource for experimentalists who desire to discover new targets." ... > full story

Size matters: Length of songbirds’ playlists linked to brain region proportions (September 23, 2011) -- Call a bird 'birdbrained' and they may call 'fowl.' Researchers have proven that the capacity for learning in birds is not linked to overall brain size, but to the relative size and proportion of their specific brain regions. ... > full story