Results 51 to 60 of about 6,602,962 (224)
, 2017 Earth's atmosphere has evolved as volatile species cycle between the atmosphere, ocean, biomass and the solid Earth. The geochemical, biological and astrophysical processes that control atmospheric evolution are reviewed from an "Earth Systems ...
AA Pavlov +89 more
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Evolution in Archaeology [PDF]
, 2008 This review begins with a brief outline of the key concepts of Darwinian archaeology. Its history is then summarized, beginning with its emergence as a significant theoretical focus within the discipline in the early 1980s; its main present-day currents ...
Shennan, SJ
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The evolution of evolution probabilities [PDF]
AIP Conference Proceedings, 1981 A short review is made of the present knowledge of evolution probabilities and of available techniques for the solution of evolution equations.
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Genetics and Molecular Biology, 2019 Evolution is both a fact and a theory. Evolution is widely observable in laboratory and natural populations as they change over time. The fact that we need annual flu vaccines is one example of observable evolution. At the same time, evolutionary theory explains more than observations, as the succession on the fossil record.
Claudia A.M. Russo, Thiago André
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Egalitarian cooperation linked to central oxytocin levels in communal breeding house mice
Communications BiologyRelationships between adult females are fundamental to understanding diversity in animal social systems. While cooperative relationships between kin are known to promote fitness benefits, the proximate mechanisms underlying this are not well understood ...
Stefan Fischer +6 more
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Prebiotic Synthesis of Aspartate Using Life’s Metabolism as a Guide
Life, 2023 A protometabolic approach to the origins of life assumes that the conserved biochemistry of metabolism has direct continuity with prebiotic chemistry. One of the most important amino acids in modern biology is aspartic acid, serving as a nodal metabolite
Stuart A. Harrison +3 more
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British Journal of Anaesthesia, 1956 BLOOD TRANSFUSION Although the first attempts at blood transfusion and intravenous therapy began in the 17th century, there is one isolated example of the conception of the intravenous administration of remedial drugs dating from the -very beginning of the Christian era. This account comes from the Metamorphoses (Bk. 7) of Ovid (43 B.C.-A.D. 17). Jason,
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Enzyme-assisted high throughput sequencing of an expanded genetic alphabet at single base resolution
Nature CommunicationsWith just four building blocks, low sequence information density, few functional groups, poor control over folding, and difficulties in forming compact folds, natural DNA and RNA have been disappointing platforms from which to evolve receptors, ligands ...
Bang Wang +8 more
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Sex-biased gene expression is repeatedly masculinized in asexual females
Nature Communications, 2019 Evolution of optimal gene expression in females is expected to be constrained by sexually-antagonistic selection on males. Here, Parker and colleagues show that gene expression has in fact become masculinized in female stick insects across five ...
Darren J. Parker +5 more
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Spontaneous assembly of redox-active iron-sulfur clusters at low concentrations of cysteine
Nature Communications, 2021 Iron-sulfur (FeS) proteins are involved in electron transfer and CO2 fixation. Here, the authors show that FeS clusters can form spontaneously in the presence of the amino acid cysteine, in conditions similar those expected in Hadean alkaline ...
Sean F. Jordan +9 more
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