Tag: "account" at biology news
FDA sees nanotech challenges in every product category it regulates
...t are worth nearly $1.5 trillion annually and that account
for almost 25 percent of US consumer spending. “Today, there are more than 500 manufacturer-identified nanotechnology consumer products being sold. These can be found in an online inventory maintained by the Wilson Center’s Project on Emerging Nano...
Bigger horns equal better genes
...genetic samples from more than 150 ibex, took into account
the fact that environmental factors also play a role in determining ibex horn size. The ibex's horns are considered a "secondary sexual trait". Researchers believe the horns help males successfully mate because they display genetic quality to fema...
Dirty snow may warm Arctic as much as greenhouse gases
...fuel combustion, while forest and open-field fires account
for the rest. Because of human activity, greenhous...ect on climate, but this is the first to take into account
realistic emissions from forest fires in the Northern Hemisphere and how warming affects the thickne...
Columbine flowers develop long nectar spurs in response to pollinators
...nary "race" to explain how natural selection might account
for the evolution of very long nectar spurs in flowers, said Hodges. "In Darwin's race, plants with the longest spurs and pollinators with the longest tongues [to tap the flowers' nectar] would be favored by natural selection, and--in a never-ending ...
Mutating the entire genome
...iseases. Credit: Sen Wu, University of Utah Genes account
for only 2.5 percent of DNA in the human genetic blueprint, yet diseases can result not only from mutant genes, but from mutations of other DNA that controls genes. University of Utah researchers report in the journal Nature Genetics that they have d...
St. Jude study shows genes play an unexpected role in their own activation
...te-tagged CREB binding to CBP/p300 at KIX does not account
for most gene activation controlled by the cAMP messenger molecule. Instead, the binding of CREB to KIX is necessary for only part of the activation of certain target genes; those genes became activated even when KIX was disabled in CBP/p300. Further...
Researchers use MRI to predict recovery after spinal cord injury
...es of SCI occur each year. Motor vehicle accidents account
for 44 percent of these injuries in the U.S. An initial MRI examination is typically performed on patients with SCI to determine the degree of neurological damage, as well as a possible prognosis. MRI findings may include cord hemorrhage, swelli...
Detecting cold, feeling pain: Study reveals why menthol feels fresh
...re the biochemical and biophysical mechanisms that account
for this"" All three receptors the Julius lab has discovered are members of the TRP family of ion channels expressed on sensory neurons. The latest finding adds to the evidence, says Julius, that TRP channels are the principal transducers of therm...
Puzzling plankton yield secrets to role in evolution/global photosynthesis
...hromosomes with horizontally transferred genes can account
for changes in the cell surface to adapt to differ...ch tiny cells. There are many mechanisms that can account
for species formation in photosynthetic phytoplankton, and this is just one of the major pieces to t...
How to look at dinosaur tracks
...scinating insight into the factors geologists must account
for when examining dinosaur tracks. The authors st...iously altered by erosion.? Geologists also must account
for whether the step was taken on a sloped surface or on a horizontal surface, and whether it was ta...
Global survey of lizards reveals greater abundance of animals on islands than on mainland ecosystems
...ility have already been observed as island species account
for half of known animal extinctions and a full 90 percent of known bird extinctions in the last 400 years. Our study suggests that islands will continue to be vulnerable worldwide.? “Many people, myself included, enjoy visiting islands for their...
Role of noise in neurons
...eviously supposed and therefore must be taken into account
in any future studies of neural coding and the reliability of synaptic transmission. ...
Parasites' impact goes beyond host to affect ecosystem
..."we saw dramatic change," says Byers. Edible algae account
for a small proportion of macroalgae on rocky shorelines ?just about seven percent ?but they are an important food and habitat resource for a variety of organisms. Over the three-and-a-half-week field experiment, ephemeral algae increased 186 percent...
Dinosaur hearing, listening to muscle noise, quieter cubicles
...in a given environment. The calculator takes into account
such variables as partition type, ceiling height, ...he sound from the machines. The system takes into account
known properties of the MRI machine sound and counteracts them. When tested with human listeners, th...
Researchers develop way to calculate speed of bacterial sex
...model improves upon existing models by taking into account
characteristics of the natural subsurface environments, the typical bacteria hangouts. This model will help scientists to quantify the spread of important bacterial traits. The swapping of genetic material between bacteria leads to bacterial adaptat...
Improved predictions of warming-induced extinctions sought
...m" arises because the models fail to take adequate account
of the mechanisms by which species persist in adverse conditions. Consequently, the researchers "believe that current projections of extinction rates are overestimates." A critical review of the four types of model now in common use leads the team to...
In young mice, gregariousness seems to reside in the genes
...re. Those studies, say Lahvis and Panksepp, do not account
for the many forms of social interaction that occur prior to sexual maturity, nor do they account
for the many kinds of social groupings that occur throughout the animal kingdom and provide much mor...
Human's ecological footprint in 2015 and Amazonia revealed
...w consumption may affect the environment by taking account
of food and fiber production, energy use, and human use of land for living space and other purposes. Population size and affluence have long been hypothesized to be primary drivers of environmental impact, however doubts over their relative impact...
Pitt study notes decline in male births in the US and Japan
...hese factors, along with older age of parents, may account
for decreasing male births.? Dr. Davis explained that environmental factors, such as prenatal exposure to endocrine- disrupting environmental pollutants may impact the SRY gene ?a gene on the Y chromosome that determines the sex of a fertilized e...
Tropical forests -- Earth's air conditioner
...e might be only half of the story; we also have to account
for whether they help to reflect sunlight by producing clouds, or help to absorb it by shading snowy tundra." Forests in colder, sub-polar latitudes evaporate less water and are less effective at producing clouds. As a result, the main climate eff...
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