Results 231 to 240 of about 612,314 (336)

Clumped Isotope Temperature Reconstruction Using Stalagmite Drip Cups. [PDF]

Rapid Commun Mass Spectrom
Umbo S, Box M, Intveld A, Longman J, Modestou S, Carolin SA, James DH, Martínez-García A, Lope CP, Brenner M, Hodell D, Breitenbach SFM.   +11 more
europepmc   +1 more source

PrEP at the site of action in cisgender and transgender women: A pharmacology study of blood and rectal CD4+ lymphocytes

British Journal of Clinical Pharmacology, EarlyView.
Background Female sex hormones used in feminizing hormone therapy (FHT) may influence activation and persistence of HIV pre‐exposure prophylaxis (PrEP) medications. The clinical relevance of this interaction remains unclear, particularly for transgender and cisgender women (TGW and CGW).
Elizabeth Hastie, Megha Srivasta, Edward R. Cachay, Leah Burke, Sara Gianella, Stephen Rawlings, Frank Z. Stanczyk, Craig Sykes, Angela D. M. Kashuba, Jill Blumenthal, Mackenzie L. Cottrell   +10 more
wiley   +1 more source

Stable hydrogen isotope in tropical bat hair and the Asian isoscape: A dataset to advance migration research. [PDF]

Sci Data
Chornelia A, Hughes AC.
europepmc   +1 more source

Mechanistic elucidation of HFIP‐enabled C–Cl bond activation in the synthesis of tetrahydroquinoline derivatives

Bulletin of the Korean Chemical Society, EarlyView.
Mechanistic studies reveal that hexafluoroisopropanol (HFIP) enables C–Cl activation of propargylic halides by stabilizing ion pairs and enhancing effective Brønsted acidity. This cooperative solvent effect allows access to cationic intermediates and promotes cascade formation of tetrahydroquinolines through cyclization and disproportionation ...
Seung Hoon Lee, Hyung Min Chi
wiley   +1 more source

Geographical Traceability of <i>Zanthoxylum schinifolium</i> Sieb. et Zucc. Using Stable Isotope and Multi-Element Fingerprinting Combined with Chemometrics. [PDF]

Foods
Zhang W, Zeng T, Fu T, Huang Y, Ji B, Meng X, Fan Y, Tang M.   +7 more
europepmc   +1 more source

Diet of bird‐like troodontid dinosaurs: synthesis of a contentious clade

Biological Reviews, EarlyView.
ABSTRACT Troodontidae is a clade of small‐to medium‐sized maniraptoran theropods that mainly lived in Laurasia (modern Asia, North America and Europe) during the Jurassic and Cretaceous periods and are believed to have had a variety of diets. The uniqueness of troodontid teeth suggests that they diverged from the typical flesh‐based diet of non‐avian ...
Yui Chi Fan, Case Vincent Miller, Michael Pittman   +2 more
wiley   +1 more source

Zinc dynamics in the pluripotent stem cells during maintenance of pluripotency and pancreatic differentiation. [PDF]

Sci Rep
Shiraki N, Kadokura T, Hashiguchi R, Sim EZ, Kongpracha P, Wiriyasermkul P, Nagamori S, Arakawa A, Kume S.   +8 more
europepmc   +1 more source

Classifying avian drinking behaviour: ecological insights and implications in a changing world

Biological Reviews, EarlyView.
ABSTRACT Water is a fundamental currency of life, and its availability significantly influences animal behaviour, physiology and distributions. However, our knowledge around the dependence on water for drinking and the direct and indirect mechanisms driving related behaviours remains partial in the context of changing climates. Here, we review patterns
Shannon R. Conradie, Marc T. Freeman
wiley   +1 more source

Carbon and nitrogen (δ¹³C, δ¹⁵N) isotope ratios of zooplankton in Lake Maggiore (Italy): a 13-year dataset. [PDF]

Sci Data
Piscia R, Caroni R, Bettinetti R, Manca M.   +3 more
europepmc   +1 more source

Model for Kinetic Effects on Calcium Isotope Fractionation (d44Ca) in Inorganic Aragonite and Cultured Planktonic Foraminifera [PDF]

, 2003
Bijma, Jelle, Bock, B., Boehm, F., Dietzel, M., Eisenhauer, A., Gussone, N., Heuser, A., Lea, D. W., Naegler, T. F., Spero, H. J.   +9 more
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