Results 61 to 70 of about 2,202 (209)

Polarimetry of light scattered by surface roughness and textured films and periodic structures in nanotechnologies: a new challenge in instrumentation and modeling

open access: yesEPJ Web of Conferences, 2010
Exhaustive studies in the literature detail the Mueller matrices properties through decomposition, optical entropy and depolarization formalism. It has been applied for many years in rather different fields. In radar polarimetry, mathematical basis of
Ferrieu. F.
doaj   +1 more source

Antiglycation and Amyloid‐β Inhibitory Activities of Pandanus odorifer Extracts and Isolated Constituents: In Vitro and Molecular Docking Insights

open access: yesChemistry &Biodiversity, Volume 23, Issue 9, September 2026.
Pandanus odorifer methanolic extract exhibited strong antiglycation activity, moderate antioxidant capacity, and high flavonoid content. Three isolated compounds reduced Aβ‐associated ThT fluorescence, with blumenol C glucoside showing the greatest effect.
Patricia Marie P. Oliva   +4 more
wiley   +1 more source

Constituents From the Flowers of Viburnum macrocephalum f. macrocephalum and Their α‐Amylase and α‐Glucosidase Inhibitory Activities

open access: yesChemistry &Biodiversity, Volume 23, Issue 9, September 2026.
Two new cadinane‑type sesquiterpenes, viburetones A and B, were isolated from Viburnum macrocephalum flowers, marking the first cadinane skeletons in this genus. Viburetone A showed dual α‑amylase and α‑glucosidase inhibition comparable to acarbose, and docking clarified its binding.
Ya‐Jiao Chen   +5 more
wiley   +1 more source

A novel comparison of Møller and Compton electron-beam polarimeters

open access: yesPhysics Letters B, 2017
We have performed a novel comparison between electron-beam polarimeters based on Møller and Compton scattering. A sequence of electron-beam polarization measurements were performed at low beam currents (
J.A. Magee   +40 more
doaj   +1 more source

Over seven decades of solar microwave data obtained with Toyokawa and Nobeyama Radio Polarimeters

open access: yesGeoscience Data Journal, 2023
Monitoring observations of solar microwave fluxes and their polarization began in Japan during the 1950s at Toyokawa and Mitaka. At present (April 2022), monitoring observations continues with the Nobeyama Radio Polarimeters (NoRP) at the Nobeyama campus
Masumi Shimojo, Kazumasa Iwai
doaj   +1 more source

Chemical Constituents of the Deep‐Sea‐Derived Fungus Talaromyces wortmannii and Their Ferroptosis Inhibitory Activity

open access: yesChemistry &Biodiversity, Volume 23, Issue 9, September 2026.
One new tyramine derivative (1) and 28 known compounds (2–29) were isolated from deep‐sea‐derived fungus Talaromyces wortmannii. Their structures were elucidated by NMR/MS and computational calculations. Compounds 2 and 6 potently inhibited ferroptosis with EC5₀ values of 4.52 and 13.73 µM.
Ke‐Xin Ma   +5 more
wiley   +1 more source

Improving performance of PEM-based partial Mueller matrix polarimeters [PDF]

open access: yes, 2019
Recently we have presented theoretical predictions and numerical modeling that show that a more advanced processing scheme can significantly improve the performance of photoelastic modulator (PEM)-based Mueller polarimeters.
Tyo, JS ; https://orcid.org/   +3 more
core   +1 more source

Anti‑Inflammatory Sesquiterpenoids From Two Asteraceae Plants Native to Kazakhstan: Isolation, Structural Elucidation, and Mechanistic Insights

open access: yesChemistry &Biodiversity, Volume 23, Issue 9, September 2026.
This study identifies potent anti‐inflammatory sesquiterpenoids from two Asteraceae plants native to Kazakhstan. Among 10 isolated compounds, both 4 and 8 inhibit key inflammatory markers, but only 8 acts by suppressing the MAPK pathway, indicating a structure‐dependent mechanistic divergence.
Arailym Zhomartova   +6 more
wiley   +1 more source

The Chemical Constituents From Borojo and Their Anti‐Inflammatory Activity

open access: yesChemistry &Biodiversity, Volume 23, Issue 9, September 2026.
Three new cyclopentenes and one new fused‑ring compound were isolated from borojo. BLH‑1, BLH‑5, and BLH‑9 inhibited TNF‑α and IL‐6 release, while BLH‑1, BLH‑2, BLH‑4, BLH‑6, and BLH‑7 reduced neutrophil migration in zebrafish models. BLH‑1 was found to suppress NF‑κB and STAT3 pathways, suggesting borojo is a promising source of anti‑inflammatory ...
Jinying Ou   +10 more
wiley   +1 more source

Spectral Polarimetric Observations of the Sun by the VIRAC RT-32 Radio Telescope: First Results

open access: yesOpen Astronomy, 2013
The article describes microwave observations of the Sun with the radio telescope RT-32 of the Ventspils International Radio Astronomy Center. The observations were performed using a multichannel spectral polarimeter for the 6.3–9.4 GHz frequency range. A
Bezrukov D.
doaj   +1 more source

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