Results 21 to 30 of about 152 (136)

An Operational Daily‐Filtered Dominion Radio Astrophysical Observatory F10.7 cm Solar Radio Flux Product

open access: yesEarth and Space Science, Volume 13, Issue 9, September 2026.
Abstract The F10.7 solar radio flux density, or F10.7, is a disk‐integrated measure of the Sun's total emission at 10.7 cm (2.8 GHz) and is a widely‐used proxy of solar activity. F10.7 emissions primarily originate from the Sun's upper chromosphere and lower corona. High‐frequency, transient “radio bursts” can dramatically increase the magnitude of F10.
C. Kuester   +3 more
wiley   +1 more source

Near‐Surface Ocean Current and Its Response to Wind Forcing

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 9, September 2026.
Abstract Ocean currents near the air‐sea interface are critical for understanding boundary layer processes and advancing coupled models. The near‐surface currents mediate air–sea fluxes and govern the transport of buoyant materials, yet the uppermost meter of the ocean remains sparsely observed and poorly represented in models.
Junzhe Liu   +2 more
wiley   +1 more source

Polarimetric Metagrating‐Assisted One‐Step Multi‐Dimensional Sensing Using a Vector Vortex Beam

open access: yesNanophotonics, Volume 15, Issue 16, 26 August 2026.
One‐step multidimensional sensing is realized by combining VVB probes with a polarimetric metagrating, where the full‐Stokes diffraction orders retrieve m‐dependent angular features and the polarization‐insensitive central order extracts l‐dependent radial‐intensity information. ABSTRACT Multidimensional optical sensing requires compact methods capable
Han Gao   +10 more
wiley   +1 more source

Discovery of VEGFR‐2 Inhibitors From Leonurus japonicus via Integrated Genetic Authentication, Molecular Networking, and In Silico Analysis

open access: yesArchiv der Pharmazie, Volume 359, Issue 8, August 2026.
Genetic authentication of Leonurus japonicus was confirmed using ITS sequencing. UHPLC‐MS/MS‐GNPS analysis and isolation led to a new labdane diterpenoid (1) and known compounds (2–6), with anti‐angiogenic activity validated by EPC assays and VEGFR‐2 docking studies.
Thiyagarajan Raviraj   +16 more
wiley   +1 more source

Dicentrine, an Aporphine Alkaloid From Ocotea langsdorffii, Induces Mitochondrial Dysfunction and Oxidative Stress in Leishmania (L.) infantum

open access: yesChemistry &Biodiversity, Volume 23, Issue 8, August 2026.
Dicentrine, an aporphine alkaloid, exhibits potent in vitro antileishmanial activity against Leishmania species with high selectivity and low macrophage cytotoxicity. Mechanistic studies reveal that the compound triggers parasite death possibly by inducing mitochondrial membrane disruption and oxidative stress.
Camila S. de Freitas   +9 more
wiley   +1 more source

A Comparative Study of the Influence of Water and Temperature on the Racemization of Five‐ and Six‐Membered l‐Alanine‐Derived Imides

open access: yesChirality, Volume 38, Issue 8, August 2026.
Racemization of chiral imides in dimethylformamide is shown to increase with increasing water content and temperature. The six‐membered imide ring system is more stable than the five‐membered analogue, with slower racemization under identical conditions and an absence of competing side reactions.
Diksha U. Sawant   +4 more
wiley   +1 more source

Phase Separation and Mechanical Properties in Si‐Poor Sodium‐Borosilicate Glasses

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 8, August 2026.
We demonstrate an unexpected phase separation and the related mechanical property enhancements in a sodium‐borosilicate glass. ABSTRACT Phase separation is a well‐known approach to increase the damage tolerance of oxide glasses. Here, we report the separation of a silicon‐ and boron‐rich phase in a Si‐poor sodium‐borosilicate glass.
Marco Holzer   +4 more
wiley   +1 more source

Full Vectorial Field Sensing Using Liquid Crystal Droplet Arrays

open access: yesAdvanced Materials, Volume 38, Issue 39, 13 July 2026.
An inkjet‐printed liquid crystal droplet array enables compact, low‐cost, single‐shot sensing of the full vectorial light field. Within a single platform, it simultaneously retrieves intensity, polarization, and phase, while dual‐wavelength operation highlights its capability for multi‐wavelength optical field characterization. ABSTRACT Determining the
Xuke Qiu   +10 more
wiley   +1 more source

Practical Enantioselective Approach to 3‐Amino‐2‐Hydroxy Acids and Application to the Synthesis of Natural Products

open access: yesChirality, Volume 38, Issue 7, July 2026.
A practical and straightforward approach to optically active erythro 3‐amino‐2‐hydroxy acids and its application to the enantioselective synthesis of 3‐phenylisoserine and of the marine natural product 3‐amino‐2‐hydroxy‐6‐methylheptanoic acid is reported.
Marilena Caporale   +4 more
wiley   +1 more source

The Formation of Cirrus‐Like Water and Carbon Dioxide Ice Clouds in the Venusian Upper Haze Region

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.
Abstract The upper haze region of the Venusian atmosphere (∼70–100 km) experiences localized cooling, probably due to gravity waves, creating transient cold pockets. Water ice clouds may form in these cold pockets when sulfuric acid droplets undergo hygroscopic growth and subsequent freezing.
Kathleen A. Alden   +5 more
wiley   +1 more source

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