Results 71 to 80 of about 227,979 (276)

The Transit Light Curve Project. V. System Parameters and Stellar Rotation Period of HD 189733 [PDF]

, 2006
We present photometry of HD 189733 during eight transits of its close-in giant planet, and out-of-transit photometry spanning two years. Using the transit photometry, we determine the stellar and planetary radii and the photometric ephemeris.
Anna Roussanova, Avi Shporer, Claret A., Gelman A., Gregory W. Henry, John Asher Johnson, Joshua N. Winn, Keigo Enya, Matthew J. Holman, Norio Narita, Queloz D., Tsevi Mazeh, Yasushi Suto, Yoshii Y., Yuzuru Yoshii   +14 more
core   +8 more sources

Enhanced Stability of Cd‐Free Quantum Dot Light‐Emitting Diodes via Yttrium Acetate‐Modified ZnMgO: Suppressing Mg Migration

Advanced Optical Materials, EarlyView.
A surface passivation strategy using yttrium acetate to suppress Mg ion migration from the ZnMgO electron transport layer is proposed. This treatment restores oxygen vacancies on the ZnMgO surface, enhancing device stability. The Cd‐free quantum dot light‐emitting diodes demonstrate a 65.5% increase in operational lifetime with an external quantum ...
Hansol Choi, Doyoon Shin, Wan Ki Bae, Hyunho Lee   +3 more
wiley   +1 more source

Photo‐Biomodulation of the Hippocampus Using Near‐Infrared Laser to Enhance Cognitive Function in Mice

Advanced Science, EarlyView.
Here a transcranial photo‐biomodulation approach is developed using near‐infrared (NIR) laser on hippocampus of mice, revealing significant improvements in learning and memory ability of mice under normal and disease conditions. The improvement results from the high‐density cell‐induced NIR local energy deposition, neuronal activation, and axonogenesis
Wei‐Tong Pan, Han‐Wen Gu, Yan‐Bo Zhou, Sophie Ma, Daqing Ma, Pan‐Miao Liu, Jian‐Jun Yang   +6 more
wiley   +1 more source

Locus Coeruleus Noradrenergic‐Spinal Projections Contribute to Electroacupuncture‐Mediated Antinociception in Postoperative Pain in Mice

Advanced Science, EarlyView.
How locus coeruleus noradrenergic‐spinal projections and subsequent α2A adrenoceptors‐CaMKII signaling cascades contribute to electroacupuncture‐induced antinociception in postoperative pain in mice is described. Abstract Postoperative pain remains a significant challenge in healthcare.
Wen‐Guang Chu, Ru Zhang, Hai‐Tao Li, Ying‐Chun Li, Hui Ding, Zhen‐Zhen Li, Wen‐Juan Han, Fei Wang, Xing‐Xing Zheng, Hong‐Hui Mao, Hua Yuan, Sheng‐Xi Wu, Rou‐Gang Xie, Ceng Luo   +13 more
wiley   +1 more source

Jitter Across 15 yr: Leveraging Precise Photometry from Kepler and TESS to Extract Exoplanets from Radial Velocity Time Series

The Astronomical Journal
Stellar activity contamination of radial velocity (RV) data is one of the top challenges plaguing the field of extreme-precision RV science. Previous work has shown that photometry can be very effective at removing such signals from RV data, especially ...
Corey Beard, Paul Robertson, Jack Lubin, Te Han, Rae Holcomb, Pranav Premnath, R. Paul Butler, Paul A. Dalba, Brad Holden, Cullen H. Blake, Scott A. Diddams, Arvind F. Gupta, Samuel Halverson, Daniel M. Krolikowski, Dan Li, Andrea S.J. Lin, Sarah E. Logsdon, Emily Lubar, Suvrath Mahadevan, Michael W. McElwain, Joe P. Ninan, Leonardo A. Paredes, Arpita Roy, Christian Schwab, Gudmundur Stefansson, Ryan C. Terrien, Jason T. Wright   +26 more
doaj   +1 more source

Improved GALEX UV Photometry for 700,000 SDSS Galaxies

The Astrophysical Journal Supplement Series, 2023
The Galaxy Evolution Explorer (GALEX) satellite performed the first and only large-area UV survey, which in tandem with the Sloan Digital Sky Survey (SDSS) has facilitated modeling of the spectral energy distributions of low-redshift galaxies and the ...
Chandler Osborne, Samir Salim, Médéric Boquien, Mark Dickinson, Stéphane Arnouts   +4 more
doaj   +1 more source

Contrast Agent Clearance Dynamics and Diffusion in the Mouse Brain After Ventricular Administration

Advanced Science, EarlyView.
Schematic representation of contrast agent clearance by convective bulk flow from the ventricular spaces to the subarachnoid space on the ventral aspect of the brain, or by diffusion into the parenchyma across the pia‐glia or through the semi‐permeable ependyma. Abstract Fluid and solute exchange between cerebrospinal fluid (CSF) spaces and the central
Yann Decker, Andreas Müller, Steven T. Proulx   +2 more
wiley   +1 more source

PROPER IMAGE SUBTRACTION—OPTIMAL TRANSIENT DETECTION, PHOTOMETRY, AND HYPOTHESIS TESTING [PDF]

, 2016
Transient detection and flux measurement via image subtraction stand at the base of time domain astronomy. Due to the varying seeing conditions, the image subtraction process is non-trivial, and existing solutions suffer from a variety of problems ...
B. Zackay, E. Ofek, A. Gal-yam
semanticscholar   +1 more source

Activation of Kir4.1 Channels by 2‐D08 Promotes Myelin Repair in Multiple Sclerosis

Advanced Science, EarlyView.
Multiple sclerosis causes myelin loss and neurological dysfunction. This study shows that 2‐D08, a small molecule targeting Kir4.1 channels, promotes OPCs differentiation via FYN tyrosine kinase phosphorylation and the FYN/MYRF pathway. It significantly improves myelin repair and motor deficits in EAE mice and marmosets, highlighting its potential as a
Mingdong Liu, Shengyu Jin, Xin Fu, Chong Xie, Yi Chen, Liangtang Chang, Yongheng Fan, Donghua He, Xiaoqi Hong, Xi Shen, Xiaoli Zheng, Qiyue Wang, Dao Shi, Fangyuan Li, Daishun Ling, Yangtai Guan, Neng Gong, Xiaoping Tong   +17 more
wiley   +1 more source

A Technique for Extracting Highly Precise Photometry for the Two-Wheeled Kepler Mission [PDF]

, 2014
The original Kepler mission achieved high photometric precision thanks to ultrastable pointing enabled by use of four reaction wheels. The loss of two of these reaction wheels reduced the telescope’s ability to point precisely for extended periods of ...
A. Vanderburg, J. Johnson
semanticscholar   +1 more source