Tag: "attraction" at biology news
Researcher Discovers Plant Genes For Phosphate Uptake
...nd enzymes that can pry the nutrient away from the attraction
of the soil clay and organic matter. And in some plants, Raghothama says, phosphorus starvation flips a genetic switch that changes certain molecules in roots and makes plants better at acquiring phosphate. In collaboration with Jose Pardo from Insti...
USGS Cautions Proper Use Of Pepper Spray To Avoid Bear Attacks
...er spray used in this mannermay actually "promote" attraction
to spray-treated sites or objects by brownbears. "If my study observations hold true elsewhere, then red pepper sprayresidues on the spray canisters, field gear, or on foliage near camps or otherhuman high-use areas may provide sites of ...
Simple Chemical Switch Steers Migrating Neurons
... whilelowering levels favors repulsion. Thus, both attraction
and repulsionshare a common chemical switch. In s...lgrowth cones when cyclic AMP is lowered. Both the attraction
and therepulsion were abolished by lowering calcium levels. In the articlepublished in Science, th...
EMAP II: A Cytokine Regulated By Apoptosis
...gically active form, implicating EMAP II in the attraction
of monocytes to sites of apoptosis. Endoth...essing of a cytokine responsible for macrophage attraction
to the sites of apoptosis....
New Biomaterial May Replace Arteries, Knee Cartilage
...It isbiocompatible with body tissue because of its attraction
to water; researcherscan adjust its mechanical strength as needed; it is compliant like normal bodytissue; and it is made from an organic polymer, rather than silicone. Researchers have completed initial laboratory testing, secured investorsf...
Researchers Track Path Of Safer Gene Delivery Method
...complexes, which are joined by their electrostatic attraction
to each other,with fluorescent markers and followed the trail as they moved through the cellto the nucleus. "This study improved our understanding of the transport of DNA into thenucleus and provided new knowledge for the design of better and...
'Dual Control' Strategy Assures Accurate Cellular Marching Orders, But A Pathogenic Microbe Can Hijack The System
...spholipids. This dual control - through Enabled's attraction
to both thereceptor protein and the membrane phospholipids -- could greatly increase thereliability of the marching orders, the researchers suggest, just as if acommand to attack had to be confirmed by two different officers in the fieldbefore soldie...
Duke expedition to rescue rare lemurs
...reeding facility, zoo, education centerand tourist attraction
developed over the past decade by the husband-and-wifeteam of Primate Center primatologists Charles Welch and Andrea Katz. The park exemplifies the Primate Center's three-pronged approach ofcaptive breeding, habitat protection and education t...
Sandia portable chemical sensor system promises new way of detecting underwater explosives
...tures. The third is that the molecules lose their attraction
to the fiber when it isheated slightly, causing them to rapidly desorb. Taking all this into account, the researchers developed a method whereby theyinsert the polymer fiber into a syringe used to collect water samples nearunderwater explosive device...
A 'Juliet' is found for the rare lemur Romeo
...reeding facility, zoo, education center andtourist attraction
developed over the past decade by the husband-and-wife teamof Primate Center primatologists Charles Welch and Andrea Katz. Any of the captured animals' return to the Duke Primate Center willdepend on construction of a new quarantine facility,...
Lemur 'Juliet' may be new subspecies; no mate for 'Romeo'
...eeding facility, zoo, education center and tourist attraction
developed over the past decade by the Primate Center's husband-and-wife team, primatologists Charles Welch and Andrea Katz. The Duke Primate Center houses the world's largest collection of endangered primates. Duke is also the only university-operat...
Scientists discover how to make nanostructures assemble themselves
...t arises from inter-play between the electrostatic attraction
of the mask and the hydrodynamic instability of the polymer. "There are just tons of new questions you need to ask," says Chou, "But it doesn't surprise us because we know we are working in a regime that no one has tried."...
Lemur 'Juliet' dies in Madagascar
...eeding facility, zoo, education center and tourist attraction
developed over the past decade by the Primate Center's husband-and-wife team, primatologists Charles Welch and Andrea Katz....
Blister beetles use sex and subterfuge to infiltrate bee's nests
...r bee species attracted to 'larval clumps'? Is the attraction
visual, chemical or both? We can look forward to these researchers revealing some of these answers in future work."...
UC Berkeley study shows gecko foot hairs are amazing dry adhesives
...es in the surface become significant. The combined attraction
of a billion pads is a thousand times more than th...heir ability to walk on the ceiling. Electrostatic attraction
was ruled out by other researchers. The most likely explanation, Full said, is intermolecular forces...
UF study shows all-time high number of shark attacks last year
...s number of beach-goers in the region and surfers' attraction
to the waves at Ponce de Leon Inlet near New Smyrna Beach, he said. Other states reporting attacks last year in North Carolina (5), California (3), Alabama (2), Hawaii (2), Texas (2), Louisiana (1) and South Carolina (1). Puerto Rico also had on...
Growing neurons use silencing mechanism to avoid disastrous tug-of-war
... This coordinated mechanism of switching off attraction
to avoid errors of axon guidance makes so much sense that it will be surprising if it isn’t found in other regions of the nervous system,” he said. “It wouldn’t necessarily have to involve direct receptor-receptor interact...
Scientists discover how nerve cells move from target to target as they wire up the developing embryo
...e is that when the axon is capable of sensing both attraction
and repulsion and both types of signals are present, then repulsion dominates - attraction
is switched off. The rule is clearly designed to prevent the axon from becoming confused, which cou...
UC Berkeley chemists detail secrets of ionization, reasons behind water's central role in chemistry of life
...eping back because there is this strong electrical attraction
from the chemical bond," he said. A femtosecond is a millionth of a billionth of a second. Once every billionth of a second or so, however, the pathway back to association - a wire of hydrogen bonds - breaks, and a free proton is created. "The proton...
When Shewanella meets goethite: Evidence found of recognition between animate and inanimate objects
...ll touches the mineral, there is an interaction -- attraction
or repulsion. It is a weak force in terms of measu...Hochella explains. Lower's microscope measures the attraction
in "nanoNewtons" -- a force that is between one millionth and one billionth of the force between a r...
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