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Tag: "survey" at biology news

Commercial fishing causes dangerous fluctuations in fish populations

...oday's Nature, involved compiling the largest ever survey of both exploited fish and non-exploited fish off the California coast. The research team looked at how the abundance of both types of fish varied over a 50 year period, and found the first evidence that exploited species' population levels vary far ...

Study offers innovative profile of enzyme that aids tumor growth

...egrated application of profiling technologies that survey both the enzymatic proteome and its primary biochemical output, the metabolome," Cravatt said. So, the team drew both on proteomics-the large-scale study of the structure and function of proteins-and metabolomics-the systematic study of cellular ...

Ecstasy can harm the brains of first-time users

...g that acts as a stimulant and psychedelic. A 2004 survey by the National Institute on Drug Abuse (NIDA) found that 450,000 people in the United States age 12 and over had used ecstasy in the past 30 days. In 2005, NIDA estimated that 5.4 percent of all American 12th graders had taken the drug at least once...

New evidence of early horse domestication

...at people were keeping horses. One approach was to survey the Krasnyi Yar site with instruments to map out subtle electrical and magnetic irregularities in the soils. With this they were able to identify the locations of 54 pit houses and dozens of post moulds where vertical posts once stood. Some of the po...

Cougar predation key to ecosystem health

...author on the study. Researchers did a systematic survey of channel dimensions, streambank condition, vegetation and species presence along each study site. "These two canyons, almost side by side, have a similar climate and their ecosystems should be quite similar," Ripple said. "But instead they are ve...

Obesity levels in US are grossly underestimated

...6 million deaths worldwide each year. In the U.S., survey data on obesity on a national and state level is o...nterview. Based on this new understanding of the survey data, the authors found that, on average, women tend to underestimate their weight while men do not....

Embryo tests give parents the choice

...lowing couples to choose the sex of their child, a survey conducted by the Genetics and Public Policy Center...f birth defects or being miscarried. However, the survey also revealed that applications of PGD have broadened to include choosing the baby's sex, as well as...

Inheriting a tendency to brain infection

... Evidence he collected during an epidemiological survey in France supported that idea. The survey, conducted with pediatric neurologist Marc Tardieu of the Kremlin-Bicêtre hospital in Paris and genetic epidemiologist Laurent Abel of the Necker Medical School, revealed that a significant proportion of pati...

Americans support free access to research

In an online survey of public attitudes conducted recently and release... benefits of free access to research. The original survey findings are available at http://www.harrisinteractive.com/news/ . "This expression of support fr...

Gut reaction: Researchers define the colon's genome

...erse genomes contained within them. The idea is to survey a complex community in one fell swoop, examining how whole ecosystems of genomes respond to environmental perturbations--and, in the case of humans, how microbial ecosystems contribute to health and disease. "This study is an important first step t...

Hope I die before I get old?

... about aging. The study was done using an online survey with six questions, asked in four different orders...ch of those ages. To make sure that their online survey methodology didn't skew the results by including an atypical group of older people, the researchers ...

Funding and bureaucracy, not access to journals, are chief obstacles to scientific productivity

...is a major barrier to scientific productivity. A survey of 883 biomedical scientists ?in Europe and North America - commissioned by the Publishing Research Consortium found that aside from lack of resources, a 'stop-go' funding culture prohibits scientists from initiating new ideas, choosing research pr...

Hopkins scientists show hallucinogen in mushrooms creates universal 'mystical' experience

...uestionnaires and a new, specially createdfollowup survey were used to rate experiences at appropriate times in the study. They included those that differentiate effects of psychoactive drugs, that detect altered states of consciousness, that rate mystical experiences and assess changes in outlook. The...

Global warming may have damaged coral reefs forever

... in the area surveyed was just 7.5 per cent. The survey showed that four fish species (a type of butterfly... probably started to happen soon after 1998. The survey also revealed that species diversity of the fish community had decreased by 50 per cent in the heavi...

WWF captures first-ever photo of wild rhino on Borneo

...as 13 whose existence was confirmed during a field survey last year in the interior forests of Sabah, Malaysia, an area known as the "Heart of Borneo." A handful of rhinos are thought to survive in addition to the 13, scattered across Sabah but isolated from each other. "This is an encouraging sign for th...

Some people would give life or limb not to be fat

Nearly half of the people responding to an online survey about obesity said they would give up a year of their life rather than be fat, according to a study by the Rudd Center for Food Policy and Obesity at Yale. The 4,000 respondents in varying numbers between 15% and 30% also said they would rather walk...

Butterfly farming to help save rain forest

...chnologies Ltd. They will undertake a biodiversity survey of the butterfly community and their host plants w...n Forest Conservation and Development Reserve. The survey will work with the indigenous Amerindian communities within the reserve and the surrounding North Ru...

New research examines genetics of successful aging

... were male, half were female. Using a novel genome survey method, scientists compared the DNA of the study sample with that of 100 young adults, aged 18-25, who were matched for sex, race, ethnicity and geographic location. Particularly, Dr. Zubenko and his research team attempted to identify specific genet...

Even a little cooling helps after cardiac arrest

...in the resident snail population, he explained. A survey of the trematode population in resident snails thus becomes a clever means of reconstructing the food web in the area, as the trematodes reflect the predator-prey relationships that must be occurring to support their reproductive lifecycle. "Tremato...

How healthy is that marsh? Biologists count parasites

...in the resident snail population, he explained. A survey of the trematode population in resident snails thus becomes a clever means of reconstructing the food web in the area, as the trematodes reflect the predator-prey relationships that must be occurring to support their reproductive lifecycle. "Tremato...

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