Results 181 to 190 of about 169,210 (304)
Ancient hybridization and phylogenetic discordance: Exploring evolutionary complexity in Asteraceae
Applications in Plant Sciences, EarlyView.Abstract Premise Conflicting phylogenetic signals are common in plant phylogenomics and often reflect evolutionary histories shaped by processes like hybridization, incomplete lineage sorting, and whole‐genome duplication (WGD). We aimed to identify and assess these complex processes in the hyper‐diverse family Asteraceae to offer insight into the ...
Paige A. Ellestad +6 more
wiley +1 more source
Campers raking path at Freshman Camp (1953)
, 1953 This photograph shows campers raking path at Freshman Camp, which takes place at Springfield College's East Campus. The group of campers are each holding a rake and helping to rake dirt and mulch on the pathway.
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The cAMP signaling pathway mediates photoperiod-induced follicle development in striped hamsters (<i>Cricetulus barabensis</i>) supported by association analyses. [PDF]
Front Endocrinol (Lausanne)Xue H +7 more
europepmc +1 more source
The Anatomical Record, EarlyView.Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley +1 more source
Gerry Christoff Cooking at Freshman Camp (1953)
, 1953 This photograph depicts Gerry Christoff, class of 1958, cooking at Freshman Camp in 1953, which takes place at Springfield College's East Campus. A piece of paper found along with the photograph states “it might not be as good as mother makes, but mother
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The Anatomical Record, EarlyView.Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley +1 more source
cAMP signaling in Mycobacterium tuberculosis
, 2009 393-400cAMP is an important second messenger in both eukaryotic and prokaryotic organisms. Several bacterial pathogens have developed mechanisms to subvert eukaryotic cAMP signaling by injecting protein toxins that are themselves adenylate cyclases or by
Agarwal, Nisheeth, Bishai, William R
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Clade‐wide morphological and functional variation of the sauropsid columella
The Anatomical Record, EarlyView.Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock +4 more
wiley +1 more source
Aglianico Grape Pomace Extract Reduces Cardiac Pacemaker Activity by Decreasing Hyperpolarization-Activated Current Density Independently of cAMP Signaling. [PDF]
Life (Basel)De Zio R +12 more
europepmc +1 more source
Editorial: Advances in cAMP signaling research: basic and translational aspects. [PDF]
Front Physiol, 2023 Aslam M, Ladilov Y.
europepmc +1 more source