Results 21 to 30 of about 23,969,272 (337)
Gates Open Research, 2022 Background: The use of artificial insemination (AI) has great potential to improve smallholder dairy herds in Africa, however high costs and often poor success rates have been discouraging.
Andrew R. Peters +8 more
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Bulletin of the American Museum of Natural History, 2021 True toads of the genus Rhinella are among the most common and diverse group of Neotropical anurans. These toads are widely distributed throughout South America, inhabiting a great diversity of environments and ecoregions.
M. Pereyra +22 more
semanticscholar +1 more source
American Museum Novitates, 2021 Advances in gene sequencing technology have made it easier to generate large molecular datasets with novel DNA sequences for phylogenetic analysis. Because morphological data are difficult to collect and not required for molecular phylogenetic analyses ...
Zachary T. Calamari
semanticscholar +1 more source
European Journal of Taxonomy, 2022 Acrostilicus Hubbard, 1896 and Pachystilicus Casey, 1905 are North American genera known from only one and two species, respectively, and have never been a subject of a modern revision. In fact, Acrostilicus was not even properly described as its author
Dagmara Żyła +2 more
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Phylogeny, time divergence, and historical biogeography of the South American Liolaemus alticolor-bibronii group (Iguania: Liolaemidae) [PDF]
PeerJ, 2018 The genus Liolaemus comprises more than 260 species and can be divided in two subgenera: Eulaemus and Liolaemus sensu stricto. In this paper, we present a phylogenetic analysis, divergence times, and ancestral distribution ranges of the Liolaemus ...
Sabrina N. Portelli +1 more
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The Root of Flowering Plants and Total Evidence [PDF]
Systematic Biology, 2015 Support for Amborella as the sole survivor of an evolutionary lineage that is sister to all other angiosperms comes from positions in DNA multiple-sequence alignments that have a poor fit to time-reversible substitution models. These sites exhibit significant levels of homoplasy, compositional heterogeneity, and strong heterotachy.
Goremykin, Vadim +4 more
openaire +3 more sources
Totality of evidence needed for nutrition recommendations [PDF]
Nature Reviews Endocrinology, 2014 We thank Pi-Sunyer and colleagues (We stand by our guidelines. Nat. Rev. Endocrinol. 10, doi:10.038/nrendo.2013.272-c1)1 for responding to our criticism of the 2013 guidelines for the management of over weight and obesity that were produced by these authors on behalf of the American Heart Association (AHA), the American College of Cardiology (ACC) and ...
Astrup, Arne, Brand-Miller, Jennie
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A Total-Evidence Dated Phylogeny of Echinoidea Combining Phylogenomic and Paleontological Data.
Systematic Biology, 2020 Phylogenomic and paleontological data constitute complementary resources for unravelling the phylogenetic relationships and divergence times of lineages, yet few studies have attempted to fully integrate them.
N. M. Koch, J. Thompson
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Digital transformation and total factor productivity: Empirical evidence from China.
PLoS ONE, 2023 Digital transformation plays a crucial role in improving the quality development of companies in this era of digital economy with ever-changing technologies.
Zhonghao Lei, Dongmei Wang
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Denying Antecedents and Affirming Consequents: The State of the Art
Informal Logic, 2015 Recent work on conditional reasoning argues that denying the antecedent [DA] and affirming the consequent [AC] are defeasible but cogent patterns of argument, either because they are effective, rational, albeit heuristic applications of Bayesian ...
David Godden, Frank Zenker
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