Daily non-political popular news in brief.
Mixed prairie grasses are better biofuel source, U of M study says
12-07-2006 · EurekAlert!Highly diverse mixtures of native prairie plant species have emerged as a leader in the quest to identify the best source of biomass for producing sustainable, bio-based fuel to replace petroleum. A new study led by David Tilman, Regents Professor of Ecology in the University of Minnesota's College of Biological Sciences, shows that mixtures of native perennial grasses and other flowering plants provide more usable energy per acre than corn grain ethanol or soybean biodiesel and are far better for the environment.
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Keywords: mixed, prairie, grasses, biofuel, source, study, grasse
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- How to grow muscle cells in a dish
11-09-2006 · EurekAlert!
Smooth muscle cells (SMCs) are a crucial component of many parts of the body, including blood vessels. A new study shows that fully functional SMCs can be generated from multipotent adult progenitor cells (MAPCs) from rat, mouse, pig and human bone marrow using only the soluble factor TGF-beta or TGF-beta and PDGFB. SMCs generated this way could provide a source of SMCs for engineering tissues, for example new blood vessels for use in bypass surgery.
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- Biodiesel study targets cleaner air, cleaner engines
04-02-2007 · EurekAlert!
Cleaner engines, cleaner air and more uses for local farm products were the focus of a just-completed study of biodiesel as an alternative fuel source on selected Ontario farms. This province-wide initiative is the only one of its kind in Canada. It involved six farms to evaluate the effectiveness of using biodiesel in agriculture.
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- Climate change threatens wild relatives of key crops
05-21-2007 · EurekAlert!
Wild relatives of plants such as the potato and the peanut are at risk of extinction, threatening a valuable source of genes that are necessary to boost the ability of cultivated crops to resist pests and tolerate drought, according to a new study released today by scientists of the Consultative Group on International Agricultural Research (CGIAR). The culprit is climate change, the researchers said.
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- License to sin -- Asking people to think about vice increases their likelihood of giving in
05-10-2007 · EurekAlert!
A new study by researchers from Duke, USC, and UPenn is the first to explore how questioning can affect our behavior when we have mixed feelings about an issue. The study, forthcoming in the June issue of the Journal of Consumer Research, found that asking people questions, like how many times they expect to give in to a temptation they know they should resist, increases how many times they will actually give in to it.
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- Toddler tests speak for themselves
03-03-2007 · EurekAlert!
From the first smile to the first word, signs that a toddler is learning to communicate are a source of great joy for any new parent. But a child's inability to develop such skills at an early stage can be a source of angst. A new study funded by the Economic and Social Research Council (ESRC) has come up with new tests for pre-schoolers to help recognize potential problems earlier.
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- Battling bitter coffee -- chemists vs. main source of coffee bitterness
08-21-2007 · EurekAlert!
Bitter taste can ruin a cup of coffee. Now, chemists in Germany and the United States say they have identified the chemicals that appear to be largely responsible for java's bitterness, a finding that could one day lead to a better tasting brew. Their study, one of the most detailed chemical analyses of coffee bitterness to date, will be presented in August at the American Chemical Society national meeting in Boston.
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- A functional immune system can be derived from embryonic stem cells, preliminary study finds
02-12-2008 · EurekAlert!
A new study demonstrates for the first time that embryonic stem cells can be used to create functional immune system blood cells, a finding which is an important step in the utilization of embryonic stem cells as an alternative source of cells for bone marrow transplantation.
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- DOE JGI plumbs termite guts to yield novel enzymes for better biofuel production
11-21-2007 · EurekAlert!
Termites may provide the biochemical means to a greener biofuel future. The bellies of these tiny beasts harbor a gold mine of microbes that have now been tapped as a rich source of enzymes for improving the conversion of biomass to valuable biofuels. The genomic sequencing and analysis of the termite gut microbes by the US Department of Energy Joint Genome Institute are highlighted in the Nov. 22 edition of the journal Nature.
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- Ambivalent about who to vote for? You're more likely to be persuaded by a disreputable source
02-12-2007 · EurekAlert!
In the first study to propose a model for how information is processed by people with differing levels of ambivalence, researchers from Columbia University and Austral University in Argentina find that ambivalent people are more likely to be persuaded by disreputable sources. Those who are strong in their opinions are more likely to evaluate the reliability of the message's source before deciding whether to accept it.
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- UGA study reveals function of ubiquitous yet poorly understood microorganisms
05-23-2007 · EurekAlert!
A new study led by University of Georgia researchers and announced on Wednesday at the American Society for Microbiology meeting in Toronto finds that crenarchaeota, one of the most common groups of archaea and a group that includes members that live in hot springs, use ammonia as their energy source. Such a metabolic mode has not been found in any of the other known high-temperature archaea.
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