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Tag: "under" at biology news

Ants show us how to make super-highways

...laden traffic. Moreover, calculations suggest that under a range of realistic scenarios, plugging behaviour results in a clear increase in daily prey intake. In other words, the behaviour of the pothole pluggers more than compensates for them not carrying prey themselves. This study provides rare quanti...

Treating HIV in war zones -- Public health emergencies need rapid advice from WHO

...s powerful testimonies from patients who have been under the care of MSF. One patient, followed in the clinic since May 2003, and on ART since December 2003, says: "I heard gun fire all through the night. When I had only five pills left I lost my appetite and felt desperate…but despite the uncertainty ...

Focused ultrasound relieves fibroid symptoms in women

...s in tissue. Ninety-six patients were treated under the original study protocol (A), and 64 patients were treated under an optimized protocol (B). Protocol A allowed a maximum treatment time of 120 minutes and a maximum ...

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

...ocate. "In addition, we also tested the sharks under two light conditions – fluorescent and infrared – ...resting for our understanding of animal navigation under water and for the development of guidance of autonomous underwater vehicles (AUVs)"...

Want to save polar bears? Follow the ice

... to propose listing the polar bear as "Threatened" under the Endangered Species Act, the Wildlife Conservat...here this habitat most likely remain in the future under global warming projections. When combined with meteorological data, the researchers hope to distingu...

Mule deer moms rescue other fawns

...s using speakers that broadcast the calls of fawns under threat, the mule deer came to the speaker and stayed there as long as the calls played, twisting and turning as they confronted the perceived attackers. Whitetail mothers that came close to the speaker tended to withdraw right away and then stayed sa...

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

...ng-term possibility of exploring the oceans hidden under the icy crust of Europa, one of Jupiter’s moons. For the near term, NASA recently approved a project that will use these technologies to explore underneath the ice of West Lake Bonney in Antarctica’s Taylor Valley. The DEPTHX vehicle, 2.5 meters ...

Scientists discover 5 new species of sea slugs from the Tropical Eastern Pacific

...owledge of Pacific nudibranchs, was collected from under a rock at 19m depth in the Bahia de Banderas, Jali...he research effort, was found by Alicia Hermosillo under a rock at 13m depth at Los Frailes, Golfo de Chiriqui, Panama. Eubranchus yolandae was collected...

Mice with a migraine show signs of brain damage

...University in the Netherlands showed that in women under the age of 45, those who suffered from migraines w...a slowly spreading wave. The brain, in turn, is under tremendous stress, developing a voracious appetite for oxygen as it works frantically to restore the...

Salk scientists hammer out a pathway that promotes muscle cell survival in mice

...emains to be seen how this pathway works in muscle under different conditions, such as during exercise, as well as what part it plays in maintaining cell survival in other tissue types and in other species." Indeed, all mammals have SIK1, not just mice, and even worms and fruit flies use variations of ...

Hearts of male and female rainbow trout are different

...formance and energy metabolism have been conducted under hypoxic (oxygen shortage) conditions, but gender w...alized when the trout heart is contracting and not under resting conditions. The study is entitled Sex Differences in Cardiac Glucose Metabolism and Func...

Scripps research team sheds light on long-sought cold sensation gene

...ation. Though cold can be unpleasant or painful under certain circumstances, it can also deaden pain, as...he same sensation can be interpreted as unpleasant under certain circumstances and pleasant in others is still not clear, but is a question the group plans t...

Amphibians in losing race with environmental change

...id and unprecedented are the environmental changes under way. Many other species will also be unable to evo...e probably beneficial, for millions of years . . . under today's conditions may subject amphibians to a variety of damaging agents." Natural selection and...

Alien plants attack using 'resource conservation' as weapon, researchers say

...hat the invasive plants were not at a disadvantage under conditions where resources were scarce." Knowing your foe These results have important implications for controlling invasive species, said Chris Field, professor of biological sciences at Stanford and director of the Carnegie Institution's De...

How to steer a moving cell

...pass are functionally integrated to steer the cell under normal and pathological conditions. "A surprising finding was that many of the proteins identified in the neuronal network, the ‘wiring diagram?that controls early development of neural networks in the embryo, are also found to control the movemen...

New technique will produce a better chromosome map

...t methods for preparing polytene cells for viewing under a light microscope involve using a thumb, pencil, ...Mert Dikmen, who uses computer vision technologies under the supervision of Beckman Institute professor Thomas Huang to analyze the images. "Our system will ...

Fat screen delivers plant-derived chemical with antidiabetic effects

...e has such a positive effect on fat. The fat cells under examination were manipulated such that they literally lit up when fat-boosting PPARã became active. Further study of harmine's effects in diabetic mice found that the chemical increases insulin sensitivity in a manner similar to, though more round...

WHO data confirms low level of resistance to Tamiflu

...lu in Egypt have been identified and are currently under investigation. Roche’s efforts to support government pandemic stockpiling Recently, the World Health Organization (WHO) reconfirmed the need for world governments to be vigilant in their plans to protect against a potential pandemic outbreak. ...

Warts vaccine -- 1 of many in pipeline

...s," Professor Frazer said. "Should the product under trial be effective, it also gives them the chance to be amongst the first to benefit." A vaccine would complement both the pap smear program and currently available vaccines to prevent infections. Genital warts are transmitted by skin contact a...

Survival of the rarest: Fruit flies shed light on the evolution of behavior

... types with a green fluorescent protein that glows under ultraviolet light. Then, over the course of a year...om for several hours a day counting glowing larvae under a microscope. The researchers found that when the fruit fly larvae were competing for food, those...

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