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Tag: "content" at biology news

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

... about medical practice after considering both the content and quality of existing medical trials on a topic. To be included in the Cochrane findings, a study had to be a randomized clinical trial. Grimwade's search turned up only one trial that passed that litmus test: a study of 534 HIV-positive children ...

Tastier tomatoes in the future?

..., discovered that there were 880 variations in the content composition of descendants produced by crossing cultured tomatoes and wild tomatoes. "On one hand, we measured higher amounts of essential amino acids and vitamins, on the other hand the fruits showed an altered combination of various sugars and orga...

High-tech tags on marine animals yield valuable data for biologists and oceanographers

...ies to the tags, such as measuring the chlorophyll content of the water (an indicator of algal blooms or "primary productivity"). "We can now use animals to show us things like the thermal properties and cooling rates of the ocean and the structure of the water column, and they can often get valuable data ...

New DNA 'fingerprinting' technique separates hemp from marijuana

...egions of the Cannabis genome responsible for drug content in marijuana. If enough can be learned about the genome, it may one day be possible to produce an entirely drug-free hemp plant that looks different from marijuana. Currently, all hemp products are imported into the United States. Developing a new va...

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

...s control the architecture as well as the nutrient content in cereal grasses. The ramosa2 (ra2) mutant of maize has increased branching of inflorescences relative to wild type plants, with short branches replaced by long, indeterminate ones, suggesting that the ra2 gene plays an important role in controllin...

Butterflies lose body fat during metamorphosis

...scientists analyzed the fatty acid composition and content of the butterflies, their diet, and their larva. ...a and then analyzed the fatty acid composition and content of the diet as well as the larva. Once the larva had transformed into butterflies, the researchers ...

HortResearch science reveals the natural potential of apples

...ruit development, including taste, colour, vitamin content and even how fruit fight plant diseases. Fruit breeders can then use this information to create new apple varieties, tailored to suit consumer tastes, health requirements, and the demand from industry for fruit less prone to disease. Speaking at a ...

Where 'jumping genes' fear to tread

...and now comprise an estimated 45% of the total DNA content in the human genome. These mobile genetic elements are scattered throughout the human genome ?separated, on average, by only 500 base pairs. But Dr. John Mattick's laboratory at the University of Queensland, Australia, identified long tracks of gen...

Biofuels can replace about 30 percent of fuel needs with significant research and policy effort

...es on the development of rapid-growth, high-energy content trees and perennials, novel environmentally friendly biomass extraction technologies, innovative catalysts for the conversion of agriculture and wood residues to bioethanol/diesel and hydrogen, bio-fuel cells and next-generation green plastics and ma...

Imaging study links key genetic risk for Alzheimer's disease to myelin breakdown

...sheet of lipid, or fat, with very high cholesterol content -- the highest of any brain tissue. The high cholesterol content allows myelin to wrap tightly around axons, speeding messages through the brain by insulating these ...

Chocolate milk could be key to longer, healthier life

... an effective and easy way to maintain the protein content in muscles or at least replace old and damaged proteins with new ones." With funding assistance from the New Zealand Health Research Council, Dr Miller and PhD student Cheryl Murphy, asked a group of elderly kiwis to perform two identical sessions o...

UCR researchers design chip that can improve citrus varieties

...trus ?genes that are associated with taste, acidic content and disease, for example ?the chip provides inform...t Volcani Institute in Israel for sharing the full content of their citrus sequence data. "Other colleagues in the United States, Japan and Spain who deposite...

Alaska seal pup diet may hold key to decline of population

...t. The study aimed to find out what effect the fat content of the harbor seals' diets has on their ability to...ng that was 16% lipids. (Herring have a higher fat content in winter before laying their eggs, but lose about one-third of their fat after releasing their eggs...

Super-sized cassava plants may help fight hunger in Africa

...going project focused on improving the nutritional content of cassava. In this work Sayre leads a team of nat...sed on increasing the vitamin, mineral and protein content of the plant. ...

Study supports 'urgent' need for worldwide ban on lead-based paint

...keting lead-based paints in countries without lead content restrictions," says Clark, professor of environmen...ing. In 1978, the United States restricted lead content in paint after determining that people--especially young children--were being poisoned by environmen...

Carnegie Mellon researchers discover key deficiencies in brains of people with autism

...ue or false. The sentences either had high imagery content ("The number eight when rotated 90 degrees looks like a pair of eyeglasses") or low imagery content ("Addition, subtraction and multiplication are all math skills.") The findings confirmed that the...

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

... of some that the lack of "open access" to journal content is a major barrier to scientific productivity. A... respondents reported access to publishers' online content had increased their productivity by saving them significant time in locating research articles and e...

Pure novelty spurs the brain

...other forms of stimulus salience such as emotional content or the need to respond to an image. The researchers said their finding that the SN/VTA is more activated by greater novelty is compatible with models of brain function "that see novelty as a motivating bonus to explore an environment in the search fo...

Biologists find regions of rice domestication

...human consumption, supplying 20 percent of caloric content for the world. By finding the geographic origins of rice, researchers can consider ways to improve the crop's nutritional value and disease resistance, which in turn can help impoverished populations in Asia and elsewhere that rely heavily on the c...

Record air pollution above the Arctic

... Wegener Institute have been measuring the aerosol content of the atmosphere above Svalbard since 1991. Measurements made via the institute's aeroplanes serve the ongoing investigation of the impact of aerosols on the climate. "It is still difficult to estimate, whether this year's data constitute the beginn...

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