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Tag: "really" at biology news

Flies don't buzz about aimlessly!

...ar spontaneously. Are the spontaneous flight paths really random, do they serve any real purpose? Armed with a computer video tracking system and an array of mathematical techniques the two researchers have revealed how the flight patterns of starved fruit flies constitute an optimal scale-free searchin...

BMI not accurate indicator of body fat

...MSU professor of kinesiology and epidemiology. "It really doesn't do a good job of saying how fat a person really is." The problem, especially among younger people and athletes, is that BMI does not distinguish ...

Sandia researchers take new approach to studying how cells respond to pathogens

...ng with robust and well-characterized cells, which really simplifies development of our new technologies and methods," Singh says. "We'll soon be working with other cell types, though, like white blood cells directly isolated from human patients. Our approach is designed to be flexible enough to handle many...

Out-of-body experiences may be caused by arousal system disturbances in brain

... be a far off idea that they could sense they were really outside their own body watching themselves. In previous studies of more than 13,000 Europeans, almost 6 percent said they have had such an out-of-body experience. Dr. Kevin Nelson and a research team at the University of Kentucky have studied the li...

In obesity, brain becomes 'unaware' of fat

...portions of the brain in those who are obese don’t really know they are overweight, researchers have reported in the March issue of the journal Cell Metabolism, published by Cell Press. These findings in obese mice show that a sensor in the brain that normally detects a critical fat hormone—causing a cascad...

Scientists identify molecular cause for one form of deafness

...r kind of pathology," Wong said. "Even so, this is really the first step. This work has relevance to not just human hearing, but also to artificial sensors." ...

Vitamins: Science doesn't always match policy

...ed content and dose of vitamins and minerals. It's really difficult to guide customers if we don't even know...upported by research to benefit public health. "We really need to encourage good study design and to establish indicators of efficacy and safety in vitamin re...

Selectivity is ultimate aphrodisiac

... reciprocated. (Think hallelujah, finally, someone really gets me.) In the past, social psychologists ha...o-minute questionnaire, answering items such as "I really liked my interaction partner" and "I was sexually attracted to my interaction partner." After ...

Imaging pinpoints brain regions that 'see the future'

...rticularly what happened last month and they can't really tell you much of anything about what they envision happening next week. This is also the case with suicidally depressed people. So, there's this theory that it all goes hand-in-hand, but nobody has looked closely enough to explain exactly how or why ...

Tracking sperm whales and jumbo squid

... seen a sperm whale feeding in the wild, so nobody really knows how they capture their food." Stressed s...here at night is because water near the surface is really warm—up to 82 F—and they may be getting stressed," Gilly explained. "The squid is using energy all o...

Enhancing activity of marijuana-like chemicals in brain helps treat

...ere they occur naturally in the brain. "That is a really important difference, and it is why we think our manipulation of the chemicals is really different from smoking marijuana." The researchers began their study by focusing on a region of ...

Smithsonian scientists discover new marine species in eastern Pacific

...reparations done on a rolling, vibrating ship have really paid off," Norenburg said. One of the unique features of the islands off the coast of Panama is that they host animals that normally are found in the Indo-Pacific, half a world away. "To think that the larvae of Hymenocera picta, a little shrimp w...

Mimicking how the brain recognizes street scenes

... turns computer vision from a trick into something really useful," said co-author Stanley Bileschi, a post-doctoral researcher in the Poggio lab. He and co-author Lior Wolf, a former post-doctoral associate who is now on the faculty of the Computer Science Department at Tel-Aviv University, are working with...

Nanotechnology meets biology and DNA finds its groove

... "To get DNA molecules to do this on surfaces is really hard," says Schwartz. The system developed by Schwartz, de Pablo and their colleagues could change all of that. By figuring out a way to take individual DNA molecules and present them in a confined, linear fashion, the genetic information encoded in...

McBride shows DNA detective work with paper-eating bacteria that 'glide'

...oes beyond its possible value in bioenergy. What really intrigues him is that it's a "gliding bacterium," able to crawl rapidly over surfaces by an unknown mechanism, which is the main subject of McBride's research with another glider called Flavobacterium johnsoniae. The two microbes are not closely rela...

UTSA researchers examine effects of global warming on Antarctic

...tinent annually. "We now know what the sea ice really looks like as far as its thickness and concentration and now we can compare the data collected to what we see in satellite imagery," said Xie. During the journey, Xie and Cicek made visual observations of the sea ice for their own research and a...

Bisexual fruit flies show new role for neurochemical

...ly bisexual, but fertile. It's the first gene that really specifically affects homosexual behavior without affecting heterosexual behavior," he said. "Trying to understand fly bisexuality sounds silly, but these behavioral changes are important evidence that ambient extracellular glutamate and xCT transpo...

A genetic 'gang of 4' drives spread of breast cancer

...lly were not very effective," said Massagué. "This really nailed the case that if we can inactivate these genes in concert, it will affect metastasis," he said. Massagué said that while clinical trials of the drug combination are being discussed, "there are already treatments to diminish the chance of met...

Chlamydia vaccine a step closer to reality

...don't know they are infected because there are not really any physical signs or symptoms, so by and large they don't get treatment." Professor Timms said Sanofi-Pasteur was one of the world's largest companies devoted to the development of human vaccines. "The fact that such a large vaccine company as...

Protein fragments sequenced in 68 million-year-old Tyrannosaurus rex

...s allows you to get the chance to say, ‘Wait, they really are related because their sequences are related.?W... material, consequently no one looked carefully at really old bones," said Schweitzer, who is also at the North Carolina Museum of Natural Sciences. She is a ...

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