Results 141 to 150 of about 478,002 (271)

DETECTION OF TRANSITING JOVIAN EXOPLANETS BY GAIA PHOTOMETRY—EXPECTED YIELD [PDF]

open access: yesThe Astrophysical Journal, 2012
13 pages, 3 figures, accepted for publication in ApJ ...
Yifat Dzigan, Shay Zucker
openaire   +3 more sources

Astrocytes Mediate Psychostimulant‐Induced Alterations of Spike‐Timing Dependent Synaptic Plasticity

open access: yesGlia, Volume 73, Issue 5, Page 1051-1067, May 2025.
Main Points Cocaine and amphetamine stimulates astrocytes and downregulates the GLT‐1. The dysfunction in GLT‐1 modify EPSP kinetics and modulate STDP, switching LTP to LTD in psychostimulant‐treated mice. These effects were restored by upregulation of GLT‐1.
Samuel Alberquilla   +7 more
wiley   +1 more source

Status of the Calan-Hertfordshire Extrasolar Planet Search

open access: yesEPJ Web of Conferences, 2013
In these proceedings we give a status update of the Calan-Hertfordshire Extrasolar Planet Search, an international collaboration led from Chile that aims to discover more planets around super metal-rich and Sun-like stars, and then follow these up with ...
Jordán Andres   +12 more
doaj   +1 more source

Atmospheric Aerosols Versus Total Atmospheric Deposition in Guadeloupe (Lesser Antilles): Composition, Concentration, and Flux

open access: yesJournal of Geophysical Research: Atmospheres, Volume 130, Issue 7, 16 April 2025.
Abstract Atmospheric mineral dust deposition is an important source of nutrients for ocean and tropical island ecosystems. Direct deposition measurements are generally more reliable at local scale than dust deposition models, even those based on aerosol concentration measurements.
Yangjunjie Xu‐Yang   +5 more
wiley   +1 more source

Confirming the Warm and Dense Sub-Saturn TIC 139270665 b with the Automated Planet Finder and Unistellar Citizen Science Network

open access: yesThe Astronomical Journal
We report the discovery and confirmation of the Transiting Exoplanet Survey Satellite (TESS) single-transit, warm and dense sub-Saturn, TIC 139270665 b. This planet is unusually dense for its size: with a bulk density of 2.13 g cm ^−3 (0.645 R _J , 0.463
Daniel O’Conner Peluso   +62 more
doaj   +1 more source

Ground-based photometry of space-based transit detections: Photometric follow-up of the CoRoT mission [PDF]

open access: yes, 2009
The motivation, techniques and performance of the ground-based photometric follow-up of transit detections by the CoRoT space mission are presented. Its principal raison d'\^{e}tre arises from the much higher spatial resolution of common ground-based ...
A. Alapini   +48 more
core   +3 more sources

Cell‐Type Specific Circuits in the Mammillary Body for Place and Object Recognition Memory

open access: yesAdvanced Science, Volume 12, Issue 13, April 3, 2025.
Li et al. defined two novel glutamatergic neuronal subtypes in the medial mammillary nucleus, pars lateralis‐located parvalbumin (PV) neurons, and basalis‐located Drd2 neurons. PV and Drd2 neurons differ in their electrophysiological properties encoded by Kcnn4 and Cacna1h, and selectively modulate place and object recognition memory by two distinct ...
Lanfang Li   +11 more
wiley   +1 more source

Changes in kidney functions following acute infusion of low molecular weight polyvinylpyrrolidone in male rats

open access: yesPhysiological Reports, Volume 13, Issue 7, April 2025.
Abstract Polyvinylpyrrolidone (PVP), a water‐soluble homopolymer, has been widely used in food, beverage, medical, and experimental tissue preparations. However, the effect of PVP on renal functions remains unknown. We investigated the acute administration of low MW of PVP on renal functions and whether it produces a toxic effect on the kidney.
Qi Yan   +3 more
wiley   +1 more source

OrCAS: Origins, Compositions, and Atmospheres of Sub-Neptunes. I. Survey Definition

open access: yesThe Astronomical Journal
Sub-Neptunes—volatile-rich exoplanets smaller than Neptune—are intrinsically the most common type of planet known. However, the formation and nature of these objects, as well as the distinctions between subclasses (if any), remain unclear.
Ian J. M. Crossfield   +63 more
doaj   +1 more source

The Transit Light Curve Project. XI. Submillimagnitude Photometry of Two Transits of the Bloated Planet WASP-4b [PDF]

open access: yes, 2009
We present photometry of two transits of the giant planet WASP-4b with a photometric precision of 400-800 parts per million and a time sampling of 25-40 seconds. The two midtransit times are determined to within 6 seconds. Together with previously published times, the data are consistent with a constant orbital period, giving no compelling evidence for
arxiv   +1 more source

Home - About - Disclaimer - Privacy