Results 71 to 80 of about 31,861 (162)

Tests of stellar model atmospheres by optical interferometry: VLTI/VINCI limb-darkening measurements of the M4 giant psi phe

open access: yes, 2003
We present K-band interferometric measurements of the limb-darkened intensity profile of the M4 giant star psi Phoenicis obtained with VLTI/VINCI. High-precision squared visibility amplitudes in the second lobe of the visibility function were obtained ...
Aufdenberg   +62 more
core   +2 more sources

Eco‐Friendly Preparation of Porous Starch via Water‐Induced Amylose Solubilization

open access: yesPolymers for Advanced Technologies, Volume 37, Issue 5, May 2026.
ABSTRACT Starch is a safe and biocompatible excipient in pharmaceutical formulations. Introducing pores into its granules transforms it into a biodegradable carrier suitable for drug delivery. Various strategies have been developed to induce pore formation, including physical methods (e.g., microwave, ultrasound), chemical methods (e.g., solvent ...
Anna Imbriano   +9 more
wiley   +1 more source

An Analysis of the Shapes of Interstellar Extinction Curves. VI. The Near-IR Extinction Law

open access: yes, 2009
We combine new HST/ACS observations and existing data to investigate the wavelength dependence of NIR extinction. Previous studies suggest a power-law form, with a "universal" value of the exponent, although some recent observations indicate that ...
Bevington   +17 more
core   +1 more source

Lipid‐Based Nanoparticles for Time‐Release Delivery of Flavonoids

open access: yesJournal of Food Process Engineering, Volume 49, Issue 5, May 2026.
Lipid‐based nanocarriers enhance the stability, bioavailability, and controlled release of flavonoids. These systems improve encapsulation efficiency and protection against degradation, highlighting their potential for food and nutraceutical applications.
Ziane da Conceição das Mercês   +3 more
wiley   +1 more source

HST Spectrophotometry and Models for Solar Analogs

open access: yes, 2010
Absolute flux distributions for seven solar analog stars are measured from 0.3 to 2.5 \mu m by HST spectrophotometry.In order to predict the longer wavelength mid-IR fluxes that are required for JWST calibration, the HST SEDs are fit with Castelli ...
Bohlin   +15 more
core   +1 more source

Invasive plants optimize leaf nitrogen allocation in photosynthesis

open access: yesNew Phytologist, Volume 250, Issue 3, Page 1522-1534, May 2026.
Summary Invasive plants often outcompete co‐occurring native species by expressing acquisitive functional traits that promote high photosynthetic capacity. However, it remains unclear whether these traits are newly evolved in the introduced (‘away’) range or if invaders arrived preadapted with superior traits from their native (‘home’) range.
Robert J. Griffin‐Nolan   +7 more
wiley   +1 more source

Atomically Dispersed Cobalt on Ionic Carbon Nitrides for Selective and Efficient Nitrate Electroreduction to Ammonia

open access: yesAngewandte Chemie, Volume 138, Issue 16, 13 April 2026.
By exploiting the structural benefits of PHI, we synthesized CoPHI with atomically dispersed cobalt sites at high density. This architecture enables efficient nitrate ion adsorption, promotes water dissociation, and enhances *H generation on the catalyst surface, thereby significantly improving electrochemical nitrate reduction performance.
Nana Gao   +14 more
wiley   +2 more sources

Oridonin‐Loaded PDA@Gel@GO Nanocapsules Modulate NLRP3 and Epithelial Repair in Colitis

open access: yesThe FASEB Journal, Volume 40, Issue 8, 30 April 2026.
Mechanism of galactosylated carboxymethyl chitosan nanomicelle oral microcapsules delivering oridonin in alleviating colitis via targeting the NLRP3 inflammasome. ABSTRACT Ulcerative colitis (UC) is a chronic inflammatory bowel disease marked by sustained mucosal inflammation and epithelial barrier dysfunction, closely associated with aberrant NOD‐like
Wenbo Yuan   +8 more
wiley   +1 more source

Mechanistic Insights Into the Photosensitizing Properties of the Topical Retinoid Tazarotene

open access: yesChemMedChem, Volume 21, Issue 8, 28 April 2026.
Light‐activated retinoids: Tazarotene and its active metabolite tazarotenic acid form long‐lived triplet excited states upon UVA irradiation, generating singlet oxygen and promoting photochemical reactions. These processes correlate with reduced fibroblast viability under light exposure, revealing potential phototoxicity and implications for combined ...
Juan A. Soler‐Orenes   +5 more
wiley   +1 more source

Analysis of a thioether lubricant by infrared Fourier microemission spectrophotometry [PDF]

open access: yes
An infrared Fourier microemission spectrophotometer is used to obtain spectra (wavenumber range, 630 to 1230 0.1 cm) from microgram quantities of thioether lubricant samples deposited on aluminum foil.
Jones, W. R., Jr.   +2 more
core   +1 more source

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