Results 81 to 90 of about 12,602 (203)

Enhancing Pea Flour Characteristics Through Radio Frequency Heating: Effects on Composition, Flavour, Anti‐Nutrients and Functionality

open access: yesLegume Science
Peas and other legume crops are sources of sustainable plant‐based proteins. Dry pea seeds can be processed into whole seed flour or dehulled milled flour and used as food ingredients.
Praiya Asavajaru   +8 more
doaj   +1 more source

Substituted N-Phenylpyrazine-2-carboxamides, Their Synthesis and Evaluation as Herbicides and Abiotic Elicitors

open access: yesMolecules, 2007
The condensation of substituted pyrazine-2-carboxylic acid chlorides with ring-substituted anilines yielded five substituted pyrazine-2-carboxylic acid amides.
Katarína Kráľová   +4 more
doaj   +1 more source

Targeting protein–protein interactions with reversible covalent modalities: Non‐cysteine chemistries

open access: yesBritish Journal of Pharmacology, EarlyView.
Abstract Protein–protein interactions (PPIs) are central to diverse cellular functions, and represent a rapidly expanding class of therapeutic targets. Advancements in covalent drug design have enabled small‐molecule drugs to overcome challenges associated with engaging these targets, such as limited durations of action and difficult‐to‐drug (expansive,
Ruchira Basu, Steven Fletcher
wiley   +1 more source

Crystal structure of 5-amino-4H-1,2,4-triazol-1-ium pyrazine-2-carboxylate: an unexpected salt arising from the decarboxylation of both precursors

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
Both the 3-amino-2H,4H-1,2,4-triazolium cation and the pyrazine-2-carboxylate anion in the title salt, C2H5N4+·C5H3N2O2−, were formed by an unexpected decarboxylation reaction, from 5-amino-1H-1,2,4-triazole-3-carboxylic acid and pyrazine-2,3 ...
José A. Fernandes   +4 more
doaj   +1 more source

Do aphid endosymbiotic bacteria influence parasitoid searching behaviour through changes in aphid honeydew production?

open access: yesEcological Entomology, EarlyView.
Hamiltonella defensa infection increases honeydew production in certain aphid genotypes, potentially modifying aphid feeding behaviour. Parasitoid wasps, Aphidius ervi, are more attracted to honeydew from H. defensa‐infected aphids; though larger honeydew amounts may slightly deter searching.
Desiré Macheda   +5 more
wiley   +1 more source

Poly[[diaquabis(μ3-3-carboxylato-4-hydroxybenzenesulfonato)tri-μ2-pyrazine-tetrasilver(I)] dihydrate]

open access: yesActa Crystallographica Section E, 2011
The title coordination polymer, {[Ag4(C7H4O6S)2(C4H4N2)3(H2O)2]·2H2O}n, contains two independent AgI ions. One AgI ion is coordinated by one O atom from a 3-carboxylato-4-hydroxybenzenesulfonate (L) ligand, two N atoms from two pyrazine ligands ...
Ying-Ying Liu   +2 more
doaj   +1 more source

Pyrazine Revisited

open access: yesJournal of Chemical Physics, 1986
Pyrazine is shown by its Molecular Eigenstate Spectra and by its quantum beats to be a small molecule. The effect of Coriolis coupling and non-resonant light scattering are discussed. This paper further treats the so-called "fast component". Its existence with a decay time of about 100 psec has by now been firmly established. It finds its cause in the "
Drabe, Karel E.   +2 more
openaire   +1 more source

Local spatial distribution of J‐aggregates in molecularly oriented bisazo‐dye thin films

open access: yesJournal of Microscopy, EarlyView.
Abstract The spatial distribution of partially grown J‐aggregates in films of oriented linear bisazo‐dye molecules is analysed using polarised optical microscopy (POM), atomic force microscopy (AFM), and hyperspectral imaging. By depositing the bisazo dye onto a poly(tetrafluoroethylene) alignment layer, an oriented thin film containing highly oriented
Jian Yu   +8 more
wiley   +1 more source

Poly[(aquacalcium)-μ4-pyrazine-2,3-dicarboxylato]

open access: yesActa Crystallographica Section E, 2011
The polymeric title compound, [Ca(C6H2N2O4)(H2O)]n, was synthesized from pyrazine-2,3-dicarboxylic acid and calcium dichloride under hydrothermal conditions.
Qing-Feng Yang   +4 more
doaj   +1 more source

Electronic Smoking Devices Among University Students: Usage Patterns and Chemical Composition of Inhaled Substances

open access: yesAnalytical Science Advances, Volume 7, Issue 1, June 2026.
ABSTRACT This study investigated the prevalence of electronic smoking device (ESD) use and its associated behavioural and chemical risks among university students in Bahia, Brazil. A cross‐sectional survey was conducted with 355 students from public and private institutions through an online questionnaire between April and May 2023. Among participants,
Eduard F. Valenzuela   +7 more
wiley   +1 more source

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