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Tag: "warm" at biology news

Antarctic ice shelf retreats happened before

...elves. In this case it's possible that a preceding warm period may have primed the ice shelf to disintegra...heet where scientists have found that a relatively warm current, Circumpolar Deep Water, is causing high melt rates on the underside of an ice shelf in Pine...

New lab technique identifies high levels of pathogens in therapy pool

...the new study assessed the microbe population in a warm hospital therapy pool through a ribosomal RNA analysis that involved cloning and sequencing genes. The team concluded that the microbes, many of them pathogenic, were enriched just inches above the pool's surface by as much as 60 percent. The microb...

Scripps scientists find potential for catastrophic shifts in Pacific ecosystems

...ical approaches. "The dynamics are the same during warm and cold periods, thus they are not true regimes," said Sugihara of the Physical Oceanography Research Division at Scripps. This is at least true for these data from the 20th century. "Finding nonlinearity is fundamental for understanding and managi...

Currents could disrupt ocean food chain

...ct that the Atlantic Conveyer current, which drags warm water from the southern tropics into the North Atl...ngly fast. The climate went from a cold state to a warm state in as little as 20 to 50 years. Surface temperatures in Greenland increased 20 to 30 degrees F...

Molecular thermometers on skin cells detect heat and camphor

...ed was involved in our ability to sense and detect warm temperature. But while temperature-gated action o...ely hot. TRPV3, for instance, becomes activated at warm and hot temperatures of 33° C (91.5° F) and above. Similarly, other TRP channels are specifically ac...

Shark attack worries? Driving to the beach is more deadly

...ee in 2002. Florida, with its large coastline and warm waters, leads all states with an average of about 30 shark attacks per year, followed by California (6), Texas (4), Hawaii (3), North Carolina (2) and Alabama, South Carolina and Oregon each reporting one. McEachran says shark attacks are far less f...

New HIV drug candidate developed in Sweden

...ee in 2002. Florida, with its large coastline and warm waters, leads all states with an average of about 30 shark attacks per year, followed by California (6), Texas (4), Hawaii (3), North Carolina (2) and Alabama, South Carolina and Oregon each reporting one. McEachran says shark attacks are far less f...

Agilent Technologies introduces advanced zebrafish, mouse microarrays for stem cell and developmental biology research

...ee in 2002. Florida, with its large coastline and warm waters, leads all states with an average of about 30 shark attacks per year, followed by California (6), Texas (4), Hawaii (3), North Carolina (2) and Alabama, South Carolina and Oregon each reporting one. McEachran says shark attacks are far less f...

Climatologists discover deep-sea secret

...ced by the gulf stream. This ocean current carries warm water from the Gulf of Mexico northwards along the Florida coast, eastwards across the Atlantic and southwards along the west coast of Europe, bringing a mild climate. The strength of the current is dependent on the salinity of the water travelling f...

Scientists discover global pattern of big fish diversity in open oceans

...ese hotspots were mostly in subtropical areas with warm waters, sufficient oxygen, and sharp temperature gradients that serve to aggregate food supply such as zooplankton and small fish. "The peak in big fish diversity is at middle temperatures," says Myers. "Like Goldilocks and the three bears- ocean an...

Researchers use 3-D imaging system to unveil swimming behavior of microscopic plankton

...hat occur across downwelling fronts where cold and warm waters meet. Vertical currents are common in many oceanic regions, including mid-ocean fronts, shelf breaks, submarine canyons and submerged banks. "That small zooplankton are capable of remaining at a constant depth with a precision of centimeters,...

Study casts doubt on 'Snowball Earth' theory

...al of life by hypothesizing the existence of small warm spots, or refugia. On the other side are supporters of a "Slushball Earth" that would have included large areas of thin ice or open ocean, particularly around the equator. The debate has tended to revolve around the same rock samples and analytical...

Envisat and ERS-2 reveal hidden side of Hurricane Rita

... be used to identify warmer ocean features such as warm core rings, eddies and currents. The US National...ruments can be used to take the temperature of the warm ocean waters that power storms during the annual Atlantic hurricane season, along with sea height an...

Vineyard weeds found to host Pierce's disease of grapes

...lished populations of sharpshooters, especially in warm weather," she said. The researchers recovered X. fastidiosa from 27 of 29 species in greenhouse tests. Sunflower, cocklebur, annual bur-sage, morning glory, horseweed, sacred datura, poison hemlock, and fava bean were most frequently infected. "Our...

Women feel more pain than men, research shows

...ed volunteers to place their non-dominant arm in a warm water bath (37 degrees centigrade) for two minutes before transferring the hand into an ice water bath maintained at a temperature of 1 - 2 degrees centigrade. The cold pressor tank allows researchers to monitor the pain threshold (the point at whic...

NCAR analysis shows widespread pollution from 2004 wildfires

...n the summer of 2004, largely because of unusually warm and dry weather. To quantify carbon monoxide emissions from the fires, the research team used a remote sensing instrument known as MOPITT (Measurements of Pollution in the Troposphere) that is operated by NCAR and the University of Toronto and flown ...

Seafloor creatures destroyed by ice action during ice ages

...d the Antarctic shelf from the deep-sea during the warm period following each ice age. 'Either way it is an impressive feat against the odds as the extreme cold means that these animals respond much more slowly to the destruction of their habitat than elsewhere in the oceans. They have lower metabolic ra...

Gene therapy may protect normal tissues during radiation retreatment for lung cancer

...d the Antarctic shelf from the deep-sea during the warm period following each ice age. 'Either way it is an impressive feat against the odds as the extreme cold means that these animals respond much more slowly to the destruction of their habitat than elsewhere in the oceans. They have lower metabolic ra...

War on terror meets war on cancer

...ool climate, while later versions came from a dry, warm climate. That confirmed the government's belief the counterfeiters had ties with terrorists who moved from Eastern Europe to the Middle East. In 2000, the Drug Enforcement Administration began using Ehleringer's method to test thousands of drug samp...

Master genetic switch found for chronic pain

... to either the cold of acetone or an uncomfortably warm plate (thermal); the uncomfortable prick of a filament (mechanical); an injection of an inflammation-inducing chemical (inflammatory); or nerve damage (neuropathic). They quantified the animals' response by measuring how long the animals lifted or li...

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