Results 101 to 110 of about 308,461 (247)

Integrating Astrocytes in the Sleep–Wake Cycle: The Time Is Now

BioEssays, EarlyView.
Astrocytes actively regulate sleep homeostatic and circadian rheostatic processes, underpinning the sleep–wake cycle. By acting as context‐dependent integrators of internal state and rhythmic environmental inputs, they modulate the encoding properties of neuronal circuitries and contribute to salient temporal representations in the brain.
Marco Brancaccio
wiley   +1 more source

Effects of Ambient and Display Lighting Color on Risk‐Taking Behavior, Perceived Emotional States, and Visual Quality of Indoor Environment

Color Research &Application, EarlyView.
In a digital risk‐taking test, participants inflated a balloon to increase earned points at the risk of popping under different display and ambient lighting conditions. ABSTRACT Lighting from architectural fixtures and screens can have impacts beyond visual perception, such as occupants' cognitive functions and emotional states. Despite the ubiquity of
Naser Shehab, Dorukalp Durmus
wiley   +1 more source

Optical Photometry of SN 1993J: 1995 to 2003

The Astronomical Journal, 2004
24 pages, 7 figures, accepted for publication in ...
Weidong Li, Jun Ma, Zongwei Li, Xu Zhou, Tianmeng Zhang, Zhaoji Jiang, Xiaofeng Wang   +6 more
openaire   +4 more sources

Optical CCD photometry of the microquasar LS 5039 [PDF]

Astronomy & Astrophysics, 2004
We report optical CCD observations of the microquasar LS 5039. Its photometric behaviour is studied over differ- ent orbital periods with a time separation of three years. We do not detect evidences of an ellipsoidal modulation above the ±0.01 mag level, thus confirming the previous results reported by Clark et al. (2001).
Josep Martí, J. M. Paredes, R. K. Zamanov, J. L. Garrido, Pedro L. Luque-Escamilla   +4 more
openaire   +1 more source

Numerical Modeling of Isochoric Heating Experiments Using the Troll Code in the Warm Dense Matter Regime

Contributions to Plasma Physics, EarlyView.
ABSTRACT Experiments of isochoric heating by protons of solid material were recently performed at LULI laser facilities. In these experiments, protons, produced from target normal sheath acceleration (TNSA) of Au foil with the PICO2000 laser, deposit their energy into an aluminum or copper foil initially at room temperature and solid density.
Sébastien Rassou, Marie Bonneau, Christophe Rousseaux, Xavier Vaisseau, Witold Cayzac, Adrien Denoeud, Frédéric Perez, Tom Beaumont, Morris Demoulins, Jean‐Christophe Pain   +9 more
wiley   +1 more source

Experimental Study of PWM-Controlled Emission From a Large-Aperture VCSEL

IEEE Photonics Journal
This study demonstrates the use of pulse-width modulation (PWM) for mode selection in a large-aperture vertical-cavity surface-emitting laser (VCSEL). Experimental results reveal that driving the device with 1 kHz PWM pulses maintains a stable far-field ...
Miroslav Slouka, Dalibor Javurek, Erik Hendrych, Marcel Stofik, Martin Kutac, Jan Latal   +5 more
doaj   +1 more source

The orbit of the brown dwarf binary Gl 569B [PDF]

, 2001
We present photometric, astrometric and spectroscopic observations of the nearby (9.8 pc) low-mass binary Gl 569Bab (in turn being a companion to the early-M star Gl 569A), made with the Keck adaptive optics facility.
B. F. Lane, Baraffe I., Bessell M. S., Bruhweiler F., Casali M. M., Delfosse X., E. L. Martin, Festin L., Grossman A. S., Heintz W. D., Huensch M., Jones H. R. A., Jones H. R. A., M. C. Britton, M. R. Zapatero Osorio, Pallavicini R., Perryman M. A. C., S. R. Kulkarni   +17 more
core   +2 more sources

Climate and microbial community composition drive shifts in ecosystem function along three parallel elevational gradients

Ecography, EarlyView.
Mountains are home to steep elevational gradients in environmental factors, biodiversity and ecosystem functionality. Though these gradients are tightly connected, little is known about the relative contribution of environmental and biotic factors in driving elevational changes in ecosystem functionality.
Congcong Shen, Michael K. Borregaard, Marcell K. Peters, Xin Jing, Akira S. Mori, Xinyu Xu, Zhi‐Ming Zhang, Lin Zhang, Jonathan M. Adams, Baodong Chen, Guo‐Xin Sun, Li‐Mei Zhang, Yuan Ge   +12 more
wiley   +1 more source

Optical and Near‐Infrared Photometry of Distant Galaxy Clusters

The Astrophysical Journal Supplement Series, 2002
We present optical and near-infrared photometry of 45 clusters of galaxies at 0.1 < z < 1.3. Galaxy catalogs in each cluster were defined at the longest wavelenth available, generally the K-band, down to approximately two magnitudes below M*. We include finding chart images of the band used for catalog definition.
Spencer A. Stanford, Spencer A. Stanford, Spencer A. Stanford, Roberto De Propris, Bradford P. Holden, Bradford P. Holden, Peter R. Eisenhardt, Peter R. Eisenhardt, Mark Dickinson, Mark Dickinson   +9 more
openaire   +4 more sources

High Spatial Resolution Thermal-Infrared Spectroscopy with ALES: Resolved Spectra of the Benchmark Brown Dwarf Binary HD 130948BC

, 2019
We present 2.9-4.1 micron integral field spectroscopy of the L4+L4 brown dwarf binary HD 130948BC, obtained with the Arizona Lenslets for Exoplanet Spectroscopy (ALES) mode of the Large Binocular Telescope Interferometer (LBTI). The HD 130948 system is a
Barman, Travis S., Briesemeister, Zackery W., Hinz, Philip, Leisenring, Jarron, Skemer, Andrew J., Skrutskie, Michael F., Spalding, Eckhart, Stone, Jordan M., Woodward, Charles E.   +8 more
core   +1 more source