Tag: "footprint" at biology news
Genome of Clostridium botulinum reveals the background to world's deadliest toxin
...n acquired from other bacteria, there is almost no footprint
of these in C. botulinum." There are several types of C. botulinum: although described as variants of a single species, they are really very different organisms linked simply because they have the deadly toxin. For each type, there is also a near-...
How to look at dinosaur tracks
...e shape, dimensions, and general appearance of the footprint
become seriously 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 taken during dry season or wet season. For example, estimating foot length from...
Human's ecological footprint in 2015 and Amazonia revealed
...tion growth, will substantially increase the human footprint
on the planet. Researchers projected 20 nations that will have the largest ecological footprints in 2015, with the United States, China and India, topping the list. According to the study, the greatest absolute increase will occur with China and ...
Alleged 40,000-year-old human footprints in Mexico much, much older than thought
... that, it turns out, throws more cold water on the footprint
hypothesis came to Renne one morning in the shower. Many rocks retain evidence of their orientation at the moment they cool in the form of iron oxide grains magnetized in a direction parallel to the Earth's magnetic field at the time of cooling. Beca...
New maps reveal true extent of human footprint on Earth
...aking these maps we are asking: where is the human footprint
on the Earth?" says Amato Evan, a SAGE researcher who merged available census and satellite data to create visuals reflecting the reach of pasture and croplands worldwide. Chad Monfreda, a graduate student at SAGE, is similarly mapping the location, ...
MicroRNAs have shaped the evolution of the majority of mammalian genes
...proteins." "MicroRNAs are leaving an evolutionary footprint
on the majority of the mammalian genome," says Grimson. "Some genes are trying to preserve beneficial microRNA sites and others are evolving in order to avoid developing harmful ones." ...
Implanted Devices Detect High-Risk Heart Failure Patients
... heart rate variability over time. Patients with a footprint
of 30 percent or less in heart rate variability we..., while those with sick hearts would have a narrow footprint
that represents the reduced variance in heart rate response," Gilliam explained. "These footprints p...
Researchers reveal the infectious impact of salmon farms on wild salmon
... invasive species. "We have worked out the spatial footprint
?the data are strong and show that the farms are h...oria. "Conservatively this means that the parasite footprint
of the farm is 150 times larger than the farm itself." Sea lice can lower the fitness of salmon - a...