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Tag: "surge" at biology news

Salty oceans provide early warning for climate change

...areas being thousands of kilometres apart. “A salt surge is enough to kick start circulation,” says Zahn. M...through the ocean along a deep pressure wave. “The surge of salt generates a pressure gradient in the ocean that sends energy to the north without water actu...

Study offers clues to 'Broken Heart Syndrome'

...op Takotsubo cardiomyopathy," Dr. Regnante said. A surge of stress hormones likely plays a role, he said, but it is also possible that a blood clot temporarily blocks a major artery of the heart, then dissolves before being detected during coronary angiography. The most common symptom of broken heart sy...

Tundra disappearing at rapid rate

...this shift will not always occur gradually but can surge ahead. "The conventional thinking on treeline ...at our data indicates is that there was an upslope surge of trees in response to warmer temperatures. It’s like it waited until conditions were just right an...

Meeting the ethanol challenge: Scientists use supercomputer to target cellulose bottleneck

...o unstable international oil supplies is driving a surge in renewable biofuels such as ethanol, with worldwide ethanol production more than doubling between 2000 and 2005. To date, corn has been the favorite ethanol source. While good news for farmers, corn prices have doubled in the past two years, and co...

Stormy days ahead for coral reefs

...e forces that coral is subjected to by wave, storm surge or tsunami, and the probability of the colonies being ripped from the sea-bed. How coral assemblages respond to the power of the sea is essential for understanding the natural distribution of coral types on present-day reefs as well as for projec...

Pollution threatens coral health by preventing lesions from healing, UCF study shows

...stal areas from hurricanes, as they break up storm surge in the same manner that sea walls do. "We're losing places where animals can hide and fish can feed," Fauth said. "And reefs where people dive are being degraded." Tissue samples from mustard hill coral were taken from eight Broward County sites,...

Warming trend may contribute to malaria's rise

...s and pathogen development, leading in turn to the surge in malaria cases. But a 2002 study found no significant changes in average temperature in the highlands of East Africa, where malaria has become a serious public health problem, prompting its authors to dismiss the malaria-climate link. Not all scie...

New maps reveal true extent of human footprint on Earth

...ditional crop of Latin America. Scientists say the surge in soybean production there has a lot to do with the booming demand for soy all the way at the other end of the world - in China. Meanwhile, Monfreda notes, long-time soybean farmers in the U.S. - the world's top soybean producer - are growing increa...

A New Era of Hope for the World's Most Neglected Diseases

...eveloped to control neglected diseases, there is a surge of interest in maximizing the effectiveness of existing tools. This interest focuses on the idea of taking the disparate vertical control programs, each targeting a specific neglected disease, and delivering them in one integrated package. For exampl...

Katrina floodwaters not as toxic to humans as previously thought, study says

... sites in the city and if the wind damage or water surge had been more severe, then the resultant floodwaters could have been a more serious toxic threat, Pardue says. "Instead, the city filled slowly, like a bathtub, and the water velocities and forces on the buildings, including chemical storage faciliti...

A bug's life: Exceptional genomic stability yet rapid protein evolution in a carpenter ant mutualist

The recent surge in the number of microbial genome sequences available to the scientific community is allowing researchers to address interesting ecological questions and to observe how various genomic, evolutionary, and ecological forces interact to define an organi...

New tooth enamel dating technique could help identify disaster victims

...clear weapons from 1955 to1963 produced a dramatic surge in the amount of radiocarbon in the atmosphere, Buchholz said. "Even though the detonations were conducted at only a few locations, the elevated carbon-14 levels in the atmosphere rapidly equalized around the globe," he said. Since atmospheric testi...

Malaria killing a million a year

..., said in New York. "We are pleased by the recent surge in funding for vaccine research, but strong research initiatives are needed for developing new medicines and safe, new insecticides." ...

Unprecedented water level rise in Somalia

...in Somalia's Shabelle River and that a major water surge may be headed into the centre of the country, the ...edented in recent times and indicated that a major surge of water was now passing into Central Somalia. Heavy rain was also expected to continue into next we...

The secret lives of whales

...ommission (IWC) because some argue that the recent surge in minke populations is unprecedented and is hampering the recovery of other whales, pointing to the need for resumed whaling. Yet the whales?varied DNA reveals a different story, a past with an ocean teeming with whales. It also shows a steadily gr...

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