Results 111 to 120 of about 3,789 (249)

Organic Clusters With Well‐Defined Structure via Scaffold Confinement

open access: yesTransformative Chemistry, EarlyView.
Using 3D‐shaped cyclic hydrocarbon scaffolds to spatially isolate electron‐rich moieties yields organic clusters with well‐defined structure, which will inspire further investigations into the in‐depth understanding of the underlying luminescence mechanism and facilitate quantitative and theoretical description of nonconventional luminophores ...
Xiang Chen   +9 more
wiley   +1 more source

Evaluating Thiram‐Induced Embryotoxicity Using Integrated In Silico, In Vitro, and Transcriptomic Approaches

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Long‐term exposure to low‐dose food contact materials (FCMs) has raised concerns regarding developmental toxicity. In the present study, we prioritized FCMs with potential developmental toxicity using a weight‐of‐evidence computational model, which predicted 127 chemicals to be of high concern.
Chia‐Chi Ho   +7 more
wiley   +1 more source

Determination of acid anhydrides concentrations using viskozimetric titration in a melt [PDF]

open access: yes, 2009
Stanovení koncentrace anhydridů kyselin v roubovaných PP viskozimetrickou titrací taveniny. Stanovení průběhu reakce mezi 1,12-diaminododecanem a PP-g-MA pomocí infračervené spektroskopie a stanovení objemového indexu toku taveniny (MVR).Determination of
Švestková, Dana
core  

Intrinsic specificity of a ‘core’ TIP60 acetyltransferase complex in Drosophila

open access: yesThe FEBS Journal, EarlyView.
The intrinsic substrate selectivity of the Drosophila TIP60‐core acetyltransferase was determined using synthetic nucleosome arrays. Targeted mass spectrometry revealed site‐specific acetylation of histones H2A, H2A.V, and H4, uncovering distinct acetylation rates and patterns across individual lysines.
Silke Krause   +5 more
wiley   +1 more source

Spatially resolved mapping of histones reveals selective neuronal response in Rett syndrome

open access: yesThe FEBS Journal, EarlyView.
Loss of Mecp2 function is associated with Rett syndrome (RTT). MeCP2 regulates chromatin, yet its influence on histone composition and dynamics is unclear. Combining MALDI‐MSI with LCM–LC–MS/MS, we mapped histone proteoforms across the dentate gyrus, cornu ammonis, and cerebellum in two mouse models of RTT.
Frederike Schäfer   +6 more
wiley   +1 more source

Characterisation of Sex Pheromone and Genetic Strain in Rachiplusia nu (Lepidoptera: Noctuidae) Populations Across Brazil

open access: yesJournal of Applied Entomology, EarlyView.
ABSTRACT Rachiplusia nu, known as the sunflower looper (SFL) and belonging to the Plusiinae subfamily, is a major defoliator of soybeans, sunflowers and other horticultural crops across southern South America. This species has recently expanded to central and northern regions of Brazil, becoming a key soybean pest.
Leonardo Figueiredo   +5 more
wiley   +1 more source

Kinetics of the reactions of the acid anhydrides with aromatic amines in aprotic solvents [PDF]

open access: yes
Work has revealed that diamine derivatives of diphenylmethane (IV), diphenyl ether (V), benzophenone (IV), fluorene (VII), and fluorenone (VIII) polymerizations with pyromellitic dianhydride in DMA were dependent on the basicity of the amine compound ...
Mason, J. G., Sugg, E.
core   +1 more source

Characterization of Grape Cane Stilbenoids and Their Photo‐Degradation Products by HPLC‐DAD Coupled With Trapped Ion Mobility Spectrometry and High‐Resolution Tandem Mass Spectrometry

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 15, 15 August 2026.
ABSTRACT Rationale Bioactive (E)‐stilbenoids in vine extracts are prone to light‐induced transformation into the respective (Z)‐isomers and further degradation products, often resulting in a loss of bioactivity. We sought to study stilbenoid degradation beyond that of the well‐researched resveratrol due to the high diversity of stilbenoids in nature ...
Paul Besrukow   +3 more
wiley   +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

High temperature resistant polyimide from tetra ester, diamine, diester and N-arylnadimide [PDF]

open access: yes, 1985
The invention described relates to improved polyimide resins which are noted for their high thermal and oxidative stability, high strength at elevated temperatures and which exhibit many other outstanding physical and chemical properties, especially ...
Pater, R. H.
core   +1 more source

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