Paper challenges 1491 Amazonian population theories
...om a geographically diverse area: three districts, each with 3 (in two cases) or four lakes. "In each we have one lake occupied and used, and the others little used or not used at all," he says. "So thi...Helium helps patients breathe easier
...nd often air is trapped in the lungs at the end of each breath; this has been shown to be one of the prima...cally stable men with moderate to severe COPD were each given four different mixes of gases including room air, while they exercised. During each test they ...A 'traffic light' for neurons means 'go' for improving brain research
... "How do different types of cells communicate with each other to carry out very complex things like emotion or how people make decisions?" Funding for the paper's authors comes from NIH, the California Institute of Regenerative Medicine, the Max Planck Society, the Deutsche Forschungsgemeinschaft (Germ...Beyond the DNA: Chemical signatures reveal genetic switches in the genome
...expressed. "The human genome is packaged within each cell by chromatin, a structure composed of DNA wrapped around proteins called histones," explains lead author Nathaniel Heintzman, from LICR and the UCSD Biomedical Sciences Graduate Program. "We used genome-scale approaches to analyze the chromatin ...Male-killing bacteria makes female butterflies more promiscuous
...tly affected by the male-killling bacteria so that each has a different ratio of males to females. The researchers assessed the natural sex ratio in 20 populations and combined this data with female mating frequency and the size of the male sperm package (Spermatophore) per copulation to find how femal......ng these disks is irradiated, the hooks grab on to each other, linking the disks into little, two-dimensional "patches" that in turn hook on to other patches. Once they reach a certain size, the patches bend around and close off to form hollow spheres, which can then be filled with guest molecules. The si...Researchers learn what sparks plant growth
...he root, we will know the major sites of action of each plant hormone and will be able to make models to predict how they work together to give rise to the tremendous diversity of shape and form found in the flowering plants," said Chory. For the moment, the research is an important addition to the fun...Human's ecological footprint in 2015 and Amazonia revealed
...e economic influences. The relative importance of each hypothesized driver on environmental impact was then estimated and used to project future levels of stressors. They found that increased affluence exacerbates environmental impacts and, when combined with population growth, will substantially increas...New report: Explosive growth changes salmon industry
...hould not be about wild versus farmed, but whether each method of production is being done right," says Dr. Gunnar Knapp, professor of economics at the University of Alaska, Anchorage, and one of the study's authors. The report found that the rapid growth in farmed salmon has dramatically increased to...Selectivity is ultimate aphrodisiac
...all of these subtleties with only four minutes for each date." "Selective vs. Unselective Romantic Desi...13 opposite-sex individuals. Immediately following each date, they completed a two-minute questionnaire, answering items such as "I really liked my interact...Pitt study notes decline in male births in the US and Japan
...rty years, the number of male births has decreased each year in the U.S. and Japan. In a review of all births in both countries, the University of Pittsburgh-led study found significantly fewer boys being born relative to girls in the U.S. and Japan, and that an increasing proportion of fetuses that die a...Eating with our eyes: Why people eat less at unbused tables
...d encourage (or require) fresh plastic glasses for each drink and that the glasses be stacked as they accumulate for each person; dinner parties could use fresh glasses for refills while empty glasses, or even empty bottle...Imaging pinpoints brain regions that 'see the future'
...d envisioning the future may go hand-in-hand, with each process sparking strikingly similar patterns of activity within precisely the same broad network of brain regions. "In our daily lives, we probably spend more time envisioning what we're going to do tomorrow or later on in the day than we do remem...MIT model helps researchers 'see' brain development
... represented computationally with points. Charting each baby's brain requires about 130,000 points per hem...rant that allowed her to identify the age at which each type of fold, coarse or fine, developed, and how quickly. She found that the coarse folds, equiva...It's OK for men with high blood pressure to have a drink or two, new study finds
...lass of beer, a glass of wine, or a shot of liquor each counts as one drink. Moderate consumption of alcohol is known to be linked to a lower risk of heart disease. But, since alcohol can increase blood pressure, would the same be true for men who have high blood pressure? The new study, published i......rage of the horse genome, which means, on average, each base pair has been sequenced almost seven times over. Researchers can access the horse genome sequence data through the following public databases: GenBank ( www.ncbi.nih.gov/Genbank ) at NIH's National Center for Biotechnology Information (NCBI); NC...LIAI completes world's most comprehensive analysis on influenza virus data
... it is a major illness that kills 36,000 Americans each year and global concerns over the possible spread of the H5N1 avian flu. In the future, database information on other infectious diseases can also be analyzed and used to good effect." ...OHSU surgeon implants donated tissue allografts
... performs several cartilage restoration procedures each week has already seen the benefit for his patients. The opportunity to correct disability and restore joint function offers the patients the chance to return to a healthy, pain-free and productive life. Crawford said the collaboration between CTS...Study calculates patient time costs associated with cancer care
...ncer. Using data from 1995 to 2001, they estimated each patient's time spent at physician and emergency ro...d imaging procedures. They then estimated how long each patient spent traveling to, waiting for, and receiving care. The net costs were calculated using a d...Bypassing eggs, flu vaccine grown in insect cells shows promise
...s in hundreds of millions of fertilized eggs, with each egg containing less than a teaspoonful of material that will ultimately become part of a vaccine. It’s typically a six-month process to produce enough flu vaccine to protect the public. Taking eggs out of the process would likely slice one or two ...