Results 91 to 100 of about 290,655 (199)

Probing Disk Ice Content and Polycyclic Aromatic Hydrocarbon Emission through Multiband MagAO+Clio Images of HD 141569

open access: yesThe Astrophysical Journal
We present resolved images of the inner disk component around HD 141569A using the Magellan adaptive optics system with the Clio2 1–5 μ m camera, offering a glimpse of a complex system thought to be in a short evolutionary phase between protoplanetary ...
Jay K. Kueny   +6 more
doaj   +1 more source

30 Doradus - Ultraviolet and optical stellar photometry

open access: yesThe Astrophysical Journal, 1993
Ultraviolet Imaging Telescope (UIT) UV magnitudes in four bands, together with optical B magnitudes, are presented for up to 314 early-type stars located in a 9.7 x 9.7 arcmin field centered on R136. The magnitudes have an rms uncertainty estimated at 0.10 mag from a comparison between the UIT magnitudes and the IUE spectra.
Jesse K. Hill   +9 more
openaire   +1 more source

Computer‐Assisted Dynamic Contrast–Enhanced Magnetic Resonance Imaging Quantification Method for Assessment of Synovial Inflammation in Active Arthritis: Correlation With Synovial and Blood Biomarkers

open access: yesACR Open Rheumatology, Volume 8, Issue 1, January 2026.
Objective To investigate the correlation and association between dynamic contrast–enhanced magnetic resonance imaging (DCE‐MRI) quantification (DEMRIQ) parameters with local and systematic markers of inflammation in patients with various etiologies of acute knee arthritis.
M. Boesen   +7 more
wiley   +1 more source

Cortico‐Striatal‐Midbrain Circuit Dysregulation Underlying MK‐801 Induced Impulsivity and the Ameliorative Effects of SEP

open access: yesAdvanced Science, Volume 13, Issue 3, 14 January 2026.
Impulsivity is a symptom across multiple psychiatric disorders, yet its neural basis remains elusive. This study shows that the NMDAR antagonist MK‐801 elevates dopamine release and disrupts neuronal selectivity in the nucleus accumbens, leading to impulsive behavior.
Xueru Wang   +6 more
wiley   +1 more source

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

open access: yesColor Research &Application, Volume 51, Issue 1, January/February 2026.
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

Keck Observations in the INfrared of Taurus and ρ Oph Exoplanets And Ultracool Dwarfs (KOINTREAU) I: A Planetary-mass Companion and a Disk-obscured Stellar Companion Discovered in Taurus

open access: yesThe Astronomical Journal
We present the first discoveries from Keck Observations in the Infrared of Taurus and ρ Oph Exoplanets and Ultracool dwarfs (KOINTREAU), an adaptive optics imaging survey of young stars in the Taurus and ρ Oph star-forming regions using the Keck infrared
Samuel A. U. Walker   +12 more
doaj   +1 more source

Optical and Near‐Infrared Photometry of Distant Galaxy Clusters

open access: yesThe 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.
Stanford, S Adam   +4 more
openaire   +3 more sources

The THEMIS Control Network of Mars

open access: yesEarth and Space Science, Volume 13, Issue 1, January 2026.
Abstract The accurate co‐registration of geospatial data is necessary to answer questions that cross‐cut disciplines and are key to understanding fundamental questions about our Solar System. To address this need and provide an updated product for Mars that is tied to a common reference frame, we have photogrammetrically controlled Thermal Emission ...
R. L. Fergason, L. Weller, M. T. Bland
wiley   +1 more source

The gatekeepers of growth: The neural roles and regulation of growth hormone‐releasing hormone neurons

open access: yesJournal of Neuroendocrinology, Volume 38, Issue 1, January 2026.
Abstract The neuroendocrine control of growth is mediated by the hypothalamic–pituitary–somatic (HPS) axis. This involves the hypothalamic release of growth hormone‐releasing hormone (GHRH), which stimulates the pituitary secretion of growth hormone (GH).
Bradley B. Jamieson
wiley   +1 more source

Benjamín Thomson, Count Rumford

open access: yesRevista CENIC Ciencias Químicas, 2016
Benjamin Thomson, Count Rumford (1752-1814), was a self-educated scientist, military man, and political economist, living during the turbulent period of the American Revolution and the European Wars of the 18th and 19th centuries. He carried on important
Jaime Wisniak
doaj  

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