U.S. EPA says it will define wood as a ‘carbon-neutral’ fuel, reigniting debate
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US nurse says she will fight Ebola quarantine.
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The gas evolution, mass decay behavior and energy content of several woods, grasses, and agricultural residues were examined with steam and CO(2) gasification using thermogravimetric analysis and gas chromatography. CO(2) concentrations were varied between 0 and 100% with steam as a coreactant. Carbon conversion was complete with 25% CO(2)/75% steam compared to 90% conversion with pure steam in...
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The sea urchin genome reveals large domains of biology heretofore unexplored at the genome level, as this is the first nonchordate deuterostome sequence. The sequence will accelerate progress toward complete understanding of the genomic regulatory system that controls developmental specification and morphogenetic function, thus illuminating basic developmental process in all animals.
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ژورنال
عنوان ژورنال: Science
سال: 2018
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.aat9793