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Tag: "wood" at biology news

Researchers: Treated wood poses long-term threat

...m simulated landfills. Their conclusion: The deck wood leached high levels of arsenic into rainwater runoff and the soil -- and treated wood only continued leaching arsenic while sitting in simulated landfills. The papers appeared in the on...

Environmental metagenomics diagnosing extreme environments, tapping opportunities for clean energy

... conversion of lignocellulosic feedstocks, such as wood chips, crop residue, and various grasses, into cleaner sources of energy." One of the systems that DOE JGI characterizing is the microbial community inhabiting the termite hindgut, among nature's most efficient bioreactors--capable of generating two...

Hantavirus found in African wood mouse

... of Guinea, identified the new virus in an African wood mouse (Hylomiscus simus) in Sangassou, Guinea. The...ing its spread to the natural range of the African wood mouse, from southern Guinea across parts of Sierra Leone, Liberia, and Ivory Coast, to Ghana. This...

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

...ve catalysts for the conversion of agriculture and wood residues to bioethanol/diesel and hydrogen, bio-fuel cells and next-generation green plastics and materials prepared from sustainable sources such as plants, sunlight and wastes. Other team leaders on the project include Dr. Charlotte Williams and D...

New organic substrate

The wood shavings from sawmills can be used to produce an o...ommercial name of "FIBRALUR" and is made from pine wood shavings which have been defibred by means of an industrial process. The resulting material has prov...

Chemical in many air fresheners may reduce lung function

... 1,4-DCB exposure, such as type of heating, use of wood fires, age of house, presence of furred pets, occupation, socioeconomic status, environmental tobacco smoke, smoking history, and diagnosis of asthma or emphysema. The authors noted that participants might have been exposed to other agents not asses...

Many cleaners, air fresheners may pose health risks when used indoors

...eral-purpose degreasers, general-purpose cleaners, wood cleaners, furniture maintenance products, spot rem...sed from other sources such as plywood and pressed wood products that are found in most buildings, any increase in formaldehyde emissions is undesirable. I...

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

...ch paint sample was applied in a single layer to a wood block, left to dry and then removed and analyzed in UC laboratories for lead content. About 50 percent of the paint sold in China, India and Malaysia--none of which appear to have regulations on lead--had lead levels 30 times higher than U.S. regu...

Massive duplication of genes may solve Darwin's 'abominable mystery' about flowering plants

...h source of medicinal compounds. Even the kind of wood they make is special." The new results support the idea that "whole-genome duplications are rare in vertebrates, but common in plants," according to dePamphilis. Independent whole-genome duplications occurred relatively recently in soy, potato, and...

How ants find their way

...hen? Now scientists have discovered how the humble wood ant navigates over proportionally huge distances, ...w the ant's visual navigation strategy works. On a wood ant's first trip to a food site it follows a chemical trail left by earlier ants. This is a slow way...

Soil nutrition affects carbon sequestration in forests

...the researchers found that trees can only increase wood growth from elevated CO2 if there is enough leaf a...h nitrogen -- can greatly increase growth rate and wood growth responses to elevated atmospheric CO2." The studies took place at a Free Air Carbon Enrich...

End of deforestation in view? Experts advance new way to size up global forest resources

...nsition are fast-growing poor populations who burn wood to cook, sell it for quick cash, and clear forest ...people help the transition by lessening demand for wood products." Anticipating impacts of expanding global trade The authors note that it's possible...

Sequencing of the oyster mushroom genome

... lignin-degrading one, lignin being a component of wood of trees and other plants that form part of the se... lignin found in agricultural waste or decomposing wood in the natural environment, may be used for designing systems to enable the elimination of these con...

Scientists crack rhino horn riddle

...s similar to a pencil's tough lead core and weaker wood periphery, which allows the horns to be honed to a sharp point. The study also ends speculation that the horn was simply a clump of modified hair. "The horns most closely resemble the structure of horses' hoofs, turtle beaks and cockatoo bills...

Cellulose nanocrystal research could lead to new vaccines, computer inks

...uter printer ink. The assistant professor in the wood science and forest products department of the College of Natural Resources at Virginia Tech will be delivering her findings at the American Chemical Society 233rd National Meeting and Exposition in Chicago on March 25-29. The focus of her research de...

Meeting the ethanol challenge: Scientists use supercomputer to target cellulose bottleneck

...t material, from corn stalks left after harvest to wood chips from papermills and fast-growing weeds. "Our simulations have given us a better understanding of the interactions between the enzyme complex and cellulose at the molecular level -- the computer model showed us how the binding portion of thi...

Chimpanzees found to use tools to hunt mammalian prey

... seen to subsequently open the hollows by breaking wood off from a distance, suggesting that the jabbing actions were intended to immobilize bushbabies, rather than rouse them from their cavities (bushbabies move quickly and might otherwise easily evade chimpanzees once roused). Two notable aspects of ...

Walking molecule now carries packages

...ed in the pulp industry for turning cellulose from wood into paper. It is also the parent substance of a large class of dyes and pigments. Its chemical formula is C14H8O2. The UCR study used a scanning tunneling microscope in Bartels's laboratory that gives a precise picture of individual molecules. Exp...

Termites get the vibe on what tastes good

...ooden blocks and specially designed blocks made of wood and other materials, the researchers found that th...es always preferred the blocks containing the most wood ?even though they could not touch or see the other materials. The results are published in the Jou...

Xylitol reduces risk of cavities

...t is produced by reduction of the sugar xylose, or wood sugar. Xylitol occurs naturally in fruits and berries, such as pears and strawberries. It is used in sugarless sweets, above all in chewing gum and lozenges. The dissertation studies what effects the substance has on the ecology of the oral cavity...

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