Tag: "than" at biology news
See what you're spewing as you speed along
...s claim this approach is faster and more sensitive than
the extractive techniques normally used to monitor emissions. In an MOT test, for example, exhaust emissions are extracted into a box while the engine is idling and the gases present are then measured. The University of Manchester team employed a...
Why nectar-feeding bats need a 'power drink' to fly
Nectar-feeding bats burn sugar faster than
any other mammal on Earth and three times faster than
even top-class athletes ecologists have discovered. The findings, published online in the British E...
MIT study: Maturity brings richer memories
...onvergence of evidence that the PFC develops later than
other brain regions, both functionally and structurally.... But this is the first study that asks how this area matures and contributes to learning. For the study, Noa Ofen, a postdoctoral associate in Gabrieli's lab, forewarned 49 healthy volunte...
Census of Marine Life historians detail collapse of bluefin tuna population off northern Europe
... tagged within minutes of each other wound up more than
5,000 km apart eight months later. One traveled 6,000 km southwest in 177 days past Bermuda to waters about 300 kilometres northeast of Cuba; the other remained in the eastern Atlantic and moved off the coasts of Portugal. A third tagged bluefin s...
Space-borne sensors help Africa tackle water shortage problems
...rtance to the countrys economy and is home to more than
half of the countrys population. "The IWAREMA p...nformation gap using satellite data. To date, more than
100 African water basin authorities, universities and other organisations have become involved in TI...
Improved NIST SRM aids lead poisoning detection
... U.S. medical personnel who each year perform more than
2 million human blood measurements, Standard Refer...onal goal reducing lead blood levels to no greater than
25 micrograms per deciliter (the equivalent of 250 parts per billion) by 2000 and no greater than
How cells change the pace of their steps
...ed strain forces of as much as 1,000 times greater than
the weight of the cell. These forces are truly ama...keleton is more important in controlling its speed than
how firmly it attaches to the substrate. Different cell types in the body can move at different sp...
National Ecological Observatory Network featured at ESA/SER Joint International Conference
...lowed by a question and answer session. For more than
a decade ecologists have wanted to create an observatory for understanding complex ecological processes at multiple scales-from biosphere dynamics to microorganisms in soil and water. Now they are preparing to build it. The National Ecological Obse...
Beyond Mesopotamia: A radical new view of human civilization reported in Science
... the first time that many archaeologists from more than
a dozen countries gathered to discuss the fresh finds that point to this new view of civilizations start. Science s Lawler was the only journalist present. Archaeologists shared findings from dozens of urban centers of approximately the same age t...
UC experts detail new standard for cleaner transportation fuels
...house-gas emissions. If biofuels are to be cleaner than
fossil fuels, they must: 1) use advanced production methods (some of which are available now), 2) be derived from feedstocks grown on degraded land, or 3) be produced from solid wastes or agricultural residues. Administrators: The California ...
New survey documents the headaches of computerized medicine
...efined categories of unintended consequences, more than
70 percent of the institutions ranked the level of...hanges in the hospital power structure which fewer than
half of the respondents ranked as high in importance. All eight categories identified in an extensi...
Forecasting system provides flood warnings to vulnerable residents of Bangladesh
...delivering 1- to 10-day forecasts directly to more than
100,000 people living on floodplains of the Brahma...g have worked to create forecasts that go out more than
10 days, thereby giving residents additional time to prepare for floods. Over the next year or two, ...
Discovery of new protein could provide new understanding of male fertility
...rs are more likely to find another E2 or E3 enzyme than
a new E1 enzyme, which explains why Goetrrup and h... was expressed about five times more in the testis than
other organs. Again, this was totally unexpected, Goettrup says. Unlike the first E1, UBE1L2 might...
ASU researchers partner with UOP to make biofuel for military jets a reality
...sed on algae as a source of renewable oil for more than
20 years. The benefits of oil produced from algae ...conflict of using food crop plants for fuel rather than
for food, said Hu and Sommerfeld. Also, algae can be grown on land that is unsuitable for agricultur...
Discredited Korean embryonic stem cells' true origins revealed
...e more likely to exchange genetic material, rather than
the middle. In contrast, embryonic stem cells created through nuclear transfer show a consistent pattern of variation through all regions of the chromosome -- thus making them easily distinguishable from parthenogenetic cells. The Korean cell line...
Unknotting DNA clue to cancer syndrome
...omosome Holliday junction. "It's a lot less tidy than
we thought, but with both break ends being capable of exchange the repair process will also be more efficient. The drawback is that it's also more risky," Hunter said. Resolution of multichromosome Holliday junctions increases the risk of rearrangi...
Where broken DNA is repaired
...onrandomly. There were fewer RIF due to gamma rays than
the model predicted, and they appeared more gradually. The researchers now used a novel technique, "relative DNA image measurements," and analyzed the images to show where the DNA was dense, where it was less dense, and where the two densities met...
Biologists at Tufts University discover 1 reason why chromosomes break, often leading to cancer
... them to look at the region in a more detailed way than
looking at human chromosomes and to monitor the re...y of the bases adenine (A) and thymine (T), rather than
the other bases cytosine (C) or guanine (G). Freudenreich and Zhang found the longer the AT-repeat, ...
Chickadee, nutchatch presence in conifers increases tree growth, says CU-Boulder study
...ens from the mountain study area, identifying more than
300 separate spider and insect species collectivel...ts of ponderosa pine forests in Colorado. "More than
anything, this study underscores the importance of preserving the ecological communities in the fore...
Success or failure of antidepressant citalopram predicted by gene variation
...y to respond to the medication citalopram (Celexa) than
are people without the variation, a study by the N...re 23 percent more likely to respond to citalopram than
were people with neither variation. The finding addresses a key issue in mental health research: th...
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