Results 61 to 70 of about 179,881 (276)

Parvalbumin Interneuron‐Dependent Hippocampal Neurogenesis Evoked by Prolonged Rhythmic Light Flicker

open access: yesAdvanced Science, EarlyView.
This study demonstrates that prolonged rhythmic 40 Hz light flicker enhances spatial learning by stimulating PV interneuron‐dependent neurogenesis. The light flicker selectively activates PV interneurons, which enhances GABAergic support for the integration of immature neurons in the adult dentate gyrus.
Hai Yan   +16 more
wiley   +1 more source

Conjugate-plane photometry: reducing scintillation in ground-based photometry [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2010
High precision fast photometry from ground-based observatories is a challenge due to intensity fluctuations (scintillation) produced by the Earth's atmosphere. Here we describe a method to reduce the effects of scintillation by a combination of pupil reconjugation and calibration using a comparison star.
Osborn, J.   +4 more
openaire   +5 more sources

Mesenchymal Stromal Cells Play an Analgesic Role Through a Npy2r Sensory Neuron‐Mediated Lung‐to‐Brain Axis

open access: yesAdvanced Science, EarlyView.
Mesenchymal stromal cells (MSC) are considered a promising alternative for neuropathic pain (NP) treatment, but underlying mechanisms remain elusive. Huang et al. illustrate that a Npy2r sensory neuron‐related lung–brain axis contributes to MSC analgesia.
Jing Huang   +25 more
wiley   +1 more source

Photometry and Illumination [PDF]

open access: yesTransactions of the American Institute of Electrical Engineers, 1902
n ...
openaire   +3 more sources

Igfbp2 Downregulation in PVT‐CeA Glutamatergic Circuits Drives Neonatal Anesthesia‐Induced Fear Memory Deficits

open access: yesAdvanced Science, EarlyView.
Repeated neonatal sevoflurane exposure impairs adolescent fear memory through Igfbp2 downregulation in paraventricular thalamus‐central amygdala glutamatergic projections. Restoring Igfbp2 or activating this circuit rescues memory deficits, neuronal excitability, and spine density, identifying a precise molecular target for preventing anesthesia ...
Weiming Zhao   +16 more
wiley   +1 more source

An Amygdala‐hippocampus Circuit for Endocannabinoid Modulation of Anxiety Avoidance

open access: yesAdvanced Science, EarlyView.
This study employs three synapse‐specific endocannabinoids (eCB) probes to monitor dynamic eCB release, activate CB1Rs and knockdown 2‐AG biosynthesis enzymes in glutamatergic anterior basolateral amygdala ‐ ventral hippocampus (aBLA–vHPC) circuit. At aBLA–vHPC circuits, activation of CB1Rs reduce anxiety avoidance, and knockdown of eCB biosynthesis ...
Bao Xue   +9 more
wiley   +1 more source

Exoplanet Two-Square Degree Survey With SAO RAS Robotic Facilities

open access: yesFrontiers in Astronomy and Space Sciences, 2022
We used the 0.5-m robotic telescope located at the Special Astrophysical Observatory of the Russian Academy of Sciences for monitoring two square degrees of the sky with the aim of detecting new exoplanets. A dimming of the visible brightness is expected
Oleg Ya. Yakovlev   +23 more
doaj   +1 more source

The New Eclipsing Cataclysmic Variable SDSS 154453+2553

open access: yes, 2011
The cataclysmic variable SDSS154453+2553 was recently identified in the Sloan Digital Sky Survey. We obtained spectra and photometry at the MDM Observatory, which revealed an eclipse with a 6.03 hour period.
Beuermann K.   +5 more
core   +1 more source

Estrogen Alleviates Sevoflurane‐Induced Neurotoxicity by Inhibiting ERα‐Tau Binding

open access: yesAdvanced Science, EarlyView.
Sevoflurane‐induced neurotoxicity exhibits sex differences, and estrogen can mitigate these effects; however, its protective action appears to be time‐window dependent, which may be related to the competitive binding of estrogen and Tau to ERα. Abstract Sevoflurane‐induced neurotoxicity is age‐dependent, but the role of sex differences is unclear ...
Feixiang Li   +8 more
wiley   +1 more source

Detection of frequency spacings in the young O-type binary HD 46149 from CoRoT photometry [PDF]

open access: yes, 2010
Using the CoRoT space based photometry of the O-type binary HD46149, stellar atmospheric effects related to rotation can be separated from pulsations, because they leave distinct signatures in the light curve.
A. Baglin   +68 more
core   +4 more sources

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