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Tag: "true" at biology news

War on terror meets war on cancer

...hor. If future research proves the same thing is true in mammalian cells, then the difference in isotopi...cteria used in bioterrorism were grown. That isn't true of anthrax, which is spread by spores that are almost dormant. But for live bioweapons spread throug...

Bigger brain size matters for intellectual ability

...6 percent of the verbal IQ score. In men, this was true for right-handers only, indicating that brain asymmetry is a factor in men. Spatial intelligence was also correlated with brain size in women, but less strongly. In men, spatial ability was not related to overall brain size. These results suggest t...

Phenolic compounds may explain Mediterranean diet benefits

... phenolic content. "So these results might not be true for all olive oil on the shelf at the grocery store," he said. Juan J. Badimon, Ph.D., F.A.C.C., from the Mount Sinai School of Medicine in New York, New York, who also was not connected with this study, said it was well-designed and will help addre...

New technique puts brain-imaging research on its head

... and uncertain because such methods don't give any true picture of what happens. Now, mechanical engineers at Washington University in St. Louis and collaborators have devised a technique on humans that for the first time shows just what the brain does when the skull accelerates. What they've done is use...

Open Source Biotechnology alliance for international agriculture

...methods such as marker assisted selection, or even true breeding hybrids of crop species that would allow farmers in developing countries to use hybrid seed year after year. Adds Jefferson, "Scientists and farmers need better options for problem solving, that meet their priorities, work within their const...

Study finds that nutritionally enhanced rice reduces iron deficiency

...o stave off day-to-day hunger. This is especially true in isolated rural areas where under-resourced and overstretched public health systems struggle to improve the overall nutrition of the world's poor through nutritional supplements. In these areas, commercially fortified foods also have difficulty mak...

Picking particles faster than one at a time

...ected more closely, however, many turned out to be true positives of good quality; only about 10 percent of the program's picks were false positives. Similar results were obtained when the segmentation program was used to pick particles from a smaller and more difficult molecule, a convex or "boat-shap...

Genetic key to growth of new arteries is identified

...l growth," Sarkar says. "Then if both of those are true ?and we think they will be ?then we can identify the mechanisms by which expression of MMP2 is blocked." Over the long term, Sarkar plans to study the same genetic mechanisms in humans, "perhaps in tissue samples taken from patients at the time of s...

Hot-spring bacteria flip a metabolic switch

...hotter regions of the mat. "The cyanobacteria are true multitaskers within the mat community," Grossman said. "We had assumed that the single-celled cyanobacteria growing at elevated temperatures were specialized for photosynthesis, but it looks like they have a more complicated metabolism than we initia...

Depression model leaves mice with molecular scar

...pression, but it failed to remove the silencers. A true cure for depression would likely have to target this persistent stress-induced scar, say the researchers, led by Eric Nestler, M.D., The University of Texas Southwestern Medical Center, who report on their findings online in Nature Neuroscience durin...

Largest study of human 'interactome' reveals a novel way

...dentifying protein interactions are likely to miss true interactions. Much of the Hopkins-Bangalore work was based on information compiled in the Human Protein Reference Database (HPRD), a repository of information on protein-protein interactions collected from the published literature and stored in a fo...

Growth hormone is made in the brain, report scientists

... the hippocampus than do males. This is especially true when estrogen levels are high and when growth hormone levels are high. They also produce more new neurons in the hippocampus during this time. ' "Sex differences in the brain is an area of research that has exploded in recent years," said Shors. "Se...

Low-cost drug gaining favor for use in HIV-infected children in poor countries

...ere hospitalized less. Those positive results held true "across the board" for children in all age groups and in different stages of HIV illness, Grimwade said. Every medication has side effects, and the trial did uncover some adverse reactions from cotrimoxazole. Still, Grimwade said the Zambian study s...

Sexual reproduction delays aging in a mammalian species

...that, in a vertebrate species, the opposite can be true as well. The authors, studying captive Zambian mole-rats (Cryptomys anselli), analyzed breeding data gathered over the course of more than 20 years. These subterranean, almost-blind, hamster-sized rodents are among the very few mammal species that h...

New RNAi tools enable systematic studies of gene function

...pplied to diverse cell types. This is particularly true in cancer research," said Bill Hahn, assistant professor at Dana-Farber Cancer Institute and Harvard Medical School, associate member of the Broad Institute and a senior author of the study. "For TRC's library, lentiviral delivery is an especially ef...

Hooked on fishing, and we're heading for the bottom, says scientist

...nies, and not their citizens, who actually are the true owners of the resources, as their main constituency. While the situation is dire, Dr. Pauly believes this situation can be turned around. He believes that a reduction of excess fishing capacity, the creation of "no-take zones" covering about 20 per ...

The evolution of food plants: Genetic control of grass flower architecture

...nd yield in some cereal grasses. This might not be true for maize because of the structure of the ear, but one can imagine that a ra2 mutant of barley, rice or sorghum might have more branches, and thus produce more seed". ...

Warbling whales speak a language all their own

...le songs meet the linguistic rigor necessary for a true language. "Humpback songs are not like human language, but elements of language are seen in their songs," said Ryuji Suzuki, a Howard Hughes Medical Institute (HHMI) predoctoral fellow in neuroscience at Massachusetts Institute of Technology and fir...

Study suggests that publicly available genome data may contain small but significant errors

...ulation or between strains, there may be no single true linear structure that will be valid for that organism, and imposing a linear sequence may not be biologically meaningful. Now, researchers at Cold Spring Harbor Laboratory and New York University describe a high throughput microarray technique that...

Amazon rainforest greens up in the dry season

... as the dry season progresses." The finding holds true only for the undisturbed portion of the rainforest. Areas where the primary forest has been converted to other uses or disturbed, "brown down" in the dry season, said Huete, a UA professor of soil, water and environmental science. Huete suggests the...

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