Results 41 to 50 of about 396,379 (307)

Eyeblink Classical Conditioning and Post Traumatic Stress Disorder – A Model Systems Approach

open access: yesFrontiers in Psychiatry, 2015
Not everyone exposed to trauma suffers flashbacks, bad dreams, numbing, fear, anxiety, sleeplessness, hyper-vigilance, hyperarousal, or an inability to cope, but those who do may suffer from post traumatic stress disorder (PTSD).
Bernard G Schreurs   +3 more
doaj   +1 more source

Identifying and characterising a plant GH1 β‐glucosidase that exhibits hydrolytic activity on N‐linked glucopyranoside

open access: yesFEBS Open Bio, EarlyView.
We report the first β‐glucosidase with demonstrated hydrolytic activity on an N‐linked glycopyranoside. The enzyme, native to maize, was biochemically characterised for this novel reaction, and structural modelling of the enzyme–substrate complex revealed several clues to the underlying reduced catalytic rate relative to its native O‐glycopyranoside ...
Hani Gharabli   +3 more
wiley   +1 more source

Facilitating evolutionary rescue from a wildlife health threat with cross-sectoral strategies: a case study on white-nose syndrome

open access: yesEcology and Society
Evolutionary rescue, the ability of a species to evolve under new selective pressures and rebound from threats, occurs within a social-ecological system.
Sarah H Olson   +17 more
doaj   +1 more source

Activation of dopamine receptors in the nucleus accumbens promotes sucrose-reinforced cued approach behavior

open access: yesFrontiers in Behavioral Neuroscience, 2016
Dopamine receptor activation in the nucleus accumbens (NAc) promotes vigorous environmentally-cued food-seeking in hungry rats. Rats fed ad libitum, however, respond to fewer food-predictive cues, particularly when the value of food reward is low.
Saleem M. Nicola   +3 more
doaj   +1 more source

Vortex-induced extinction behavior in methanol gaseous flames: a comparison with quasi-steady extinction [PDF]

open access: yes, 2000
Using a combination of HCHO planar laser-induced fluorescence and laser Doppler velocimetry measurements, the extinction behavior of methanol counterflow diffusion flames was examined experimentally under conditions in which the extinction was brought ...
Gomez, Alessandro   +3 more
core  

In silico and in vitro exploration of a tyrosinase for biocatalytic production of catechols

open access: yesFEBS Open Bio, EarlyView.
Tyrosinase from Ralstonia pseudosolanacearum is a promising biocatalyst for producing valuable catechols from monophenol substrates. This tyrosinase is uniquely suited to this due to its high monophenolase : diphenolase ratio. We combined in silico docking and in vivo kinetic characterisation of this tyrosinase with 11 industrially relevant monophenols,
James Britton   +6 more
wiley   +1 more source

The conservation impact of botanical drones: Documenting and collecting rare plants from vertical cliffs and other hard‐to‐reach areas

open access: yesEcological Solutions and Evidence
A high percentage of island floras are at risk of extinction and have been reduced to relic populations, often in remote hard‐to‐reach areas. Uncrewed aircraft systems (UAS aka drones) are now being utilized to assist in the survey and collection of rare
Ben Nyberg   +12 more
doaj   +1 more source

Numerical model for estimating contribution of different components of crystalline cloud to extinction of optical radiation. Part 1. Scheme of qualitative estimation

open access: yesИзвестия Томского политехнического университета: Промышленная кибернетика
An analytical expression for extinction coefficient of optical radiation is proposed, taking into account various microphysical parameters of dispersed medium. The formula is product of the extinction factor and modified geometric value.
Olga V. Shefer   +2 more
doaj   +1 more source

The effects of presenting additional stimuli resembling the CS+ during extinction on extinction retention and generalisation to novel stimuli

open access: yes, 2021
Recent studies have shown that extinction training including the conditional stimulus (CS+) and stimuli similar to the CS + enhances extinction retention and generalisation to novel stimuli.
Ryan, Katherine M   +4 more
core   +1 more source

Posterior Disconnection Syndrome in Early‐Stage Adult‐Onset Cerebral Adrenoleukodystrophy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Adult‐onset cerebral adrenoleukodystrophy is potentially treatable but often difficult to recognize before advanced cerebral involvement. Herein, we describe three men with early‐stage disease who initially presented with subtle visual complaints rather than subcortical dementia. Targeted neuropsychological testing revealed higher‐order visual
Kazuto Katsuse   +13 more
wiley   +1 more source

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