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Tag: "water" at biology news

Nicotine rush hinges on sugar in neurons

...al, in my opinion.” The researchers also found a water molecule deep in the receptor’s core – significant...lps the structure hold its shape, Chen said. The water molecule may enable the receptor to alter its shape in counterbalance to the bending hinge, said Che...

Releasing fish for the future

... Use landing nets without knotted mesh Maintain water quality in on-boat holding tanks, and Use the right rig for the fish species being targeting. Dr Broadhurst said some of these actions were found to massively boost fish survival. “Simply cutting the line rather than attempting to remove h...

Soils offer new hope as carbon sink

...mproved, the need for added fertiliser reduced and water holding capacity was raised," he said. The trials also measured gases given off from the soils and found significantly lower emissions of carbon dioxide and nitrous oxide (a greenhouse gas more than 300 times as potent as carbon dioxide). NSW DPI...

Caribbean frogs started with a single, ancient voyage on a raft from South America

... the frog faunas must have arrived by rafting over water to the smaller and younger islands, the Lesser Ant...le across and could include plants that trap fresh water and insect food for frogs," Hedges said. It is not likely that the frog species dispersed simply by...

Studies to find better ways to preserve human eggs, ovarian tissue under way

...t but not the cells inside. Liquid freezes and the water inside the cells moves out gradually so they dehyd...vitrification.” The agents are needed to intercept water so it won’t form ice. Interestingly if small ice crystals form during cooling, they can get larger d...

Salty oceans provide early warning for climate change

Monitoring the saltiness of the ocean water could provide an early indicator of climate change... (like the Gulf Stream and its North Atlantic deep water partner) are capable of shifting gears very suddenly, but until now it wasn’t clear how this occurre...

Researchers examine carbon capture and storage to combat global warming

...ould have to occur to cause a problem. Drinking water contamination, Benson said, is the more probable danger. For example, if carbon dioxide enters the groundwater somehow, it can increase the water's acidity, potentially leaching toxic chemicals, such as lead, from rocks into the water, she said. T...

Microbes at work cleaning up the environment

...terintuitive to use a microbial protein to improve water quality. But some bacteria are doing just that to protect themselves from potentially toxic nanoparticles in their own environments, and clean up crews of the future could potentially do the same thing on a larger scale. A team from Lawrence Live...

Plants recognize their siblings, biologists discover

...tart growing more roots, which allows them to grab water and mineral nutrients before their neighbours get them. It appears, though, that they only do this when sharing a pot with unrelated plants; when they share a pot with family they don’t increase their root growth. Because differences between groups o...

Marine phytoplankton changes form to protect itself from different predators

...both the phytoplankton and predators, leaving only water containing the chemical signals of attack. Water samples containing signals from the two predators were then separately introduced into Phaeocystis cultures that had not been attacked. The scientists then studied how the different chemical signal...

Runners -- Let thirst be your guide

...f endurance exercise at risk of potentially lethal water intoxication, say international experts who study disorders of water metabolism. Such exercise includes marathons, triathlons, and long distance cycling. This serious c...

3-D ultrasound scanner provides in-depth view of the brain

..." straight ahead by emitting ultrasound waves like water from a hose. That way, it can produce an image of the brain with just the tip inserted through the skull. The researchers demonstrated that the brain scanner can successfully image the brain of a dog. Guided by the device, team member Srinivasan M...

St. Jude study shows genes play an unexpected role in their own activation

...rnal.” “CREB is like a plumber who turns on the water flow in a pipe system by using a certain tool,” Brindle said. “What we discovered is that the CREB ‘plumber’ requires different tools to turn on different genes; and that each gene determines which set of co-factor tools from CREB’s toolbox it will r...

'Smart' mice teach scientists about learning process, brain disorders

...red mice were more adept at learning to navigate a water maze and remembering that being in a certain box i... Bibb said, when a situtation changed, such as the water maze being rearranged, the engineered mice were much faster to realize that things were different an...

'Virtual autopsy' helps identify drowning as cause of death

...ng as a cause of death for a body that is found in water is imperative in forensic investigation because becoming submerged in water may be a secondary rather than primary event. Autopsy findings that support the diagnosis of drownin...

New research shows sharks use their noses and bodies to locate smells

...g for our understanding of animal navigation under water and for the development of guidance of autonomous underwater vehicles (AUVs)"...

NASA-funded robotic sub finds bottom of world's deepest sinkhole

...f Tamaulipas. It also obtained numerous samples of water and the gooey biofilm coating the cenote’s walls. "We’re very pleased about the performance of the DEPTHX system," said David Wettergreen, an associate research professor who headed Carnegie Mellon’s contingent of the research team. "We hit our te...

Statin treatment improves spatial memory in mouse models of Alzheimer's

...cantly improved spatial memory - how to navigate a water maze - in mice genetically bred to have an Alzheim...ere acclimated for one week, with as much food and water as they wished, then divided into four groups. Half the “Alzheimer’s mice?and half the normal mice r...

Early exposure to indoor fungus molecules may protect infants against future allergies

...me, including the presence of any visible mold and water damage. Environmental and food allergy development was monitored through annual skin prick tests. Scientists say early-life exposure to common microbial components—like bacterial endotoxins and fungal glucans—can stimulate the body’s immune system...

Protein enables discovery of quantum effect in photosynthesis

...hotosynthesis transforms light, carbon dioxide and water into chemical energy in plants and some bacteria. The wavelike characteristic of this energy transfer process can explain its extreme efficiency, in that vast areas of phase space can be sampled effectively to find the most efficient path for energy ...

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