Results 51 to 60 of about 2,866 (223)

Mechanistic study of the formation of ring-retaining and ring-opening products from the oxidation of aromatic compounds under urban atmospheric conditions [PDF]

open access: yesAtmospheric Chemistry and Physics, 2019
Aromatic hydrocarbons make up a large fraction of anthropogenic volatile organic compounds and contribute significantly to the production of tropospheric ozone and secondary organic aerosol (SOA).
A. Zaytsev   +16 more
doaj   +1 more source

Decolorization of Ponceau Red 4R with TiO2/ZnO: Effect of calcination temperature and Fe addition

open access: yesEnvironmental Progress &Sustainable Energy, EarlyView.
Abstract The photocatalytic degradation of azo dyes using semiconductor oxides has emerged as a promising strategy for wastewater remediation. In this study, pure, mixed, and Fe‐doped oxide catalysts based on Zinc Oxide and Titanium Dioxide were synthesized and evaluated for the degradation of Ponceau 4R under ultraviolet irradiation.
Stefani Castilhos   +5 more
wiley   +1 more source

On the Constitution of some Dinitro-m-cresols

open access: yes, 1929
On the Constitution of some \(Dinitro\)-\(m\)-\(cresols\
SHRIRANG M. SANE, SHIAM SUNDER JOSHI
core   +1 more source

Multi‐omics–driven precision medicine

open access: yesiMeta, EarlyView.
Multi‐omics‐driven precision medicine (MODPM) provides a multiscale, continuously learnable framework that integrates genomics, epigenomics, transcriptomics, proteomics, metabolomics, microbiome profiles, and clinical data. Powered by artificial intelligence and foundation models, MODPM enables cross‐modal representation learning, contextual modeling ...
Huibo Li   +20 more
wiley   +1 more source

The Effect of the Aging Process of Polyamide 11 Used in Flexible Pipelines and Its Influence on the Permeability of Carbon Dioxide

open access: yesPolymer Engineering &Science, EarlyView.
Field degradation inducing changes in the Polyamide 11 permeability. ABSTRACT This study investigates how long‐term natural aging affects the CO2 permeability of polyamide 11 (PA11) pressure sheaths recovered from decommissioned flexible risers. PA11 samples were extracted from two 18‐year‐old risers—a gas‐lift line and an oil‐production line—and ...
Antônio Pedro Andrade da Cunha Ponciano Gomes   +3 more
wiley   +1 more source

Hydroxylation of chlorotoluenes and cresols: a pulse radiolysis, laser flash photolysis, and product analysis study

open access: yes, 1997
The reactions of •OH, O•- and SO4•- with 2-, 3-, and 4-cresols were studied by pulse radiolysis, laser flash photolysis, and product analysis techniques. The rates of OH reaction with cresols are very high (k ≈ 1 × 1010 M-1 s-
Mohan, H.   +5 more
core   +1 more source

Recent advances in polymeric chemically amplified positive resists: Materials and design strategies

open access: yesSmart Molecules, EarlyView.
This review summarizes recent advances in the molecular design of positive chemically amplified resists, focusing on photoacid generators and polymer architectures. Key strategies for enhancing sensitivity—including self‐amplification effects, copolymerization of sensitive monomers, controlled polymerization, and photosensitized chemically amplified ...
Litao Zhou   +3 more
wiley   +1 more source

Diet–Microbiome–Immune Interactions at the Gut Mucosa in Food Allergy: Mechanisms, Gaps, and Therapeutic Implications

open access: yesAllergy, EarlyView.
ABSTRACT Mucosal surfaces are sites of highly dynamic interactions among epithelial and immune cells, environmental exposures, particularly dietary inputs, and the diverse microbial communities and their metabolites. These elements continually influence each other to maintain homeostasis and ensure appropriate immune discrimination between pathogens ...
Clara Delaroque   +5 more
wiley   +1 more source

An assessment of spruce wood as a replacement for peat in the production of whisky: chemical and sensory analysis of new make spirits [PDF]

open access: yesSustainable Food Technology
Thermal decomposition of spruce wood and peat was investigated and compared using thermogravimetric analysis and pyrolysis-enabled gas chromatography mass spectrometry (GC–MS).
Kacper P. Krakowiak   +7 more
doaj   +1 more source

Imidazole-rich copper peptides as catalysts in xenobiotic degradation.

open access: yesPLoS ONE, 2020
Laccases, oxidative copper-enzymes found in fungi and bacteria were used as the basis in the design of nona- and tetrapeptides. Laccases are known to be excellent catalysts for the degradation of phenolic xenobiotic waste.
Sharifa Zaithun Begum   +5 more
doaj   +1 more source

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