Results 111 to 120 of about 389,533 (392)

Into the Light: Diurnality has Evolved Multiple Times in Geckos [PDF]

open access: yes, 2015
Geckos are the only major lizard group consisting mostly of nocturnal species. Nocturnality is presumed to have evolved early in gecko evolution and geckos possess numerous adaptations to functioning in low light and at low temperatures. However, not all
Bauer, Aaron M.   +3 more
core   +2 more sources

Fresh insights into the light‐induced pineal gland circadian rhythm transmission mechanism derived from mRNA and miRNA profiling

open access: yesAnimal Research and One Health, EarlyView.
Mechanisms of light in regulating the chick pineal clock. Abstract The circadian clock significantly impacts animal health and productivity, with light playing a crucial role in regulating circadian rhythms. However, the mechanisms behind light‐induced circadian transmission remain unclear, particularly in light‐sensitive avian species.
Yunlei Li   +10 more
wiley   +1 more source

Retino-hypothalamic regulation of light-induced murine sleep

open access: yesFrontiers in Systems Neuroscience, 2014
The temporal organization of sleep is regulated by an interaction between the circadian clock and homeostatic processes. Light indirectly modulates sleep through its ability to phase shift and entrain the circadian clock.
Fanuel eMuindi   +4 more
doaj   +1 more source

The influence of the atmospheric boundary layer on nocturnal layers of noctuids and other moths migrating over southern Britain [PDF]

open access: yes, 2006
Insects migrating at high altitude over southern Britain have been continuously monitored by automatically-operating, vertical-looking radars over a period of several years.
AD Smith   +60 more
core   +1 more source

Nucleophilic Fluorination of a Secondary Alkyl Bromide with KF(18‐Crown‐6) and Bulky Diols: Microsolvation Causes Chemoselectivity Inversion in the Free Energy Profile

open access: yesChemPlusChem, Accepted Article.
Fluoride ion solvated in polar aprotic solvents works like bases and reacts with secondary alkyl bromide substrates mainly via E2 reactions, with minor formation of SN2 fluorination products. The use of KF combined with crown ether increases the SN2 yield. However, secondary substrates remain a challenge for nucleophilic fluorination.
Luís F. Resende   +2 more
wiley   +1 more source

Predicting 24-hour intraocular pressure peaks and averages with machine learning

open access: yesFrontiers in Medicine
PurposePredicting 24-hour peak and average intraocular pressure (IOP) is essential for the diagnosis and management of glaucoma. This study aimed to develop and assess a machine learning model for predicting 24-hour peak and average IOP, leveraging ...
Ranran Chen   +9 more
doaj   +1 more source

Multi-Scale Transects of Three North American Drylines

open access: yesAtmosphere, 2020
North American drylines are distinct air mass boundaries that have often been examined for their relation to the initiation of severe convective storms.
Loren D. White, Duanjun Lu
doaj   +1 more source

Does moonlight increase predation risk? Meta-analysis reveals divergent responses of nocturnal mammals to lunar cycles.

open access: yesJournal of Animal Ecology, 2014
The risk of predation strongly affects mammalian population dynamics and community interactions. Bright moonlight is widely believed to increase predation risk for nocturnal mammals by increasing the ability of predators to detect prey, but the potential
L. Prugh, C. Golden
semanticscholar   +1 more source

Confirmation of Fixed Quarterly Riliprubart Regimen in Patients with Cold Agglutinin Disease Using Population PK/PD and Exposure‐Response Analyses

open access: yesClinical Pharmacology &Therapeutics, EarlyView.
Riliprubart is a second‐generation, humanized immunoglobulin G4 that inhibits only the activated form of the C1s component of the proximal classical complement pathway. The clinical studies of riliprubart conducted thus far for the treatment of cold agglutinin disease (CAD), a rare autoimmune disease, include a Phase 1 first‐in‐human study in healthy ...
Timothy Chow   +3 more
wiley   +1 more source

The acoustic environment of intensive care wards based on long period nocturnal measurements

open access: yesNoise and Health, 2012
The patients in the Intensive Care Units are often exposed to excessive levels of noise and activities. They can suffer from sleep disturbance, especially at night, but they are often too ill to cope with the poor environment.
Hui Xie, Jian Kang
doaj   +1 more source

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