Results 241 to 250 of about 70,537 (294)
Environmental and Preliminary Economic Assessment of Integrated Resource Recovery from Spent Fluid Catalytic Cracking Catalysts. [PDF]
ACS OmegaXue Y, Zhao J, Tan Z, Pan D, Zhang X.
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Expanded character sampling inspired by a new Cretaceous conifer seed cone from California: importance of morphology in resolving relationships among the Cupressaceae. [PDF]
Ann BotPfeiler KC +5 more
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Survival of the wittiest (not friendliest): The art and science behind human linguistic and cognitive evolution. [PDF]
PNAS NexusProgovac L.
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The Evolution of Molecular Clocks: Concepts, Calibrations, and Challenges. [PDF]
Biology (Basel)Soares P, Rito T.
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Origins of Life, 1976A comparative statistical study has been carried out on populations of modern algae, of Precambrian algal microfossils, of the 'organized elements' of the Orgueil carbonaceous meteorite, and of the oldest microfossil-like objects now known (spheroidal bodies from the Fig Tree and Onverwacht Groups of the Swaziland Supergroup, South Africa).
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2015
The origin of fossils After an animal dies, its behavior immediately stops. Of course! Thus, behavior is the first component of the phenotype to be lost. After this, DNA and soft tissues are also rapidly lost. Large and small animals may eat or scavenge the carcass, dismembering the body, stripping away flesh, and breaking open bones that are rich in
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The origin of fossils After an animal dies, its behavior immediately stops. Of course! Thus, behavior is the first component of the phenotype to be lost. After this, DNA and soft tissues are also rapidly lost. Large and small animals may eat or scavenge the carcass, dismembering the body, stripping away flesh, and breaking open bones that are rich in
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Scientific American, 2005
This article comments on the persistence of the creationism argument despite the multifarious evidence supporting evolution. Nineteenth-century English social scientist Herbert Spencer made this prescient observation: "Those who cavalierly reject the Theory of Evolution, as not adequately supported by facts, seem quite to forget that their own theory ...
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This article comments on the persistence of the creationism argument despite the multifarious evidence supporting evolution. Nineteenth-century English social scientist Herbert Spencer made this prescient observation: "Those who cavalierly reject the Theory of Evolution, as not adequately supported by facts, seem quite to forget that their own theory ...
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Journal of Monetary Economics, 2012 Abstract Agriculture sector output (biocarbon) is a good substitute for oil in energy production but oil cannot be used as food. This one-way substitutability is analyzed in a dynamic general equilibrium model. It features three endogenous phases: a pure fossil, a mixed fossil and biocarbon and an absorbing biocarbon fuel only phase.
John Hassler, Hans-Werner Sinn
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Comparative Biochemistry and Physiology, 1967
Abstract 1. 1. Lipid components such as fatty acid esters, cholesterol esters, free fatty acids and phospholipids (phosphatidyl ethanolamine and lecithin) were found in well-preserved fossil bones of Pleistocene age. 2. 2. Half the older specimens (to Paleozoic) contained fatty acids and two still retained phosphatidyl ethanolamine. 3. 3.
S K, Das, A R, Doberenz, R W, Wyckoff
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Abstract 1. 1. Lipid components such as fatty acid esters, cholesterol esters, free fatty acids and phospholipids (phosphatidyl ethanolamine and lecithin) were found in well-preserved fossil bones of Pleistocene age. 2. 2. Half the older specimens (to Paleozoic) contained fatty acids and two still retained phosphatidyl ethanolamine. 3. 3.
S K, Das, A R, Doberenz, R W, Wyckoff
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