Results 121 to 130 of about 36,268 (249)

Antimicrobial Residues in a Key Cerrado River: Distribution, Persistence, and Effects on Zebrafish Embryo‐Larval Development

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT The current study aimed to quantify the antimicrobials amoxicillin (AMX), cefazolin (CFZ), chloramphenicol (CHL), metronidazole (MTZ), and sulfamethoxazole (SX) in effluents and surface water of an important Cerrado river, calculate their half‐lives, and analyze their ecotoxicity following single and combined exposures.
Náthala Maria Simão   +12 more
wiley   +1 more source

XPS studies of nitrogen doping niobium used for accelerator applications

open access: yes, 2018
Nitrogen doping study on niobium (Nb) samples used for the fabrication of superconducting radio frequency (SRF) cavities was carried out. The samples' surface treatment was attempted to replicate that of the Nb SRF cavities, which includes heavy ...
He, Yuan   +7 more
core   +1 more source

On Phosphatitanacycles

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
Titanocene phosphinidenes react with terminal alkynes in formal [2 + 2] cycloadditions to give unsaturated [C2PTi] metallcycles. Diphosphene complexes in combination with aryl‐substituted alkynes react similarly to provide metallacyclopentenes. Titanocene‐phosphinidene and diphosphanediide (or diphosphene) complexes Cp2Ti(PMe3)PMesTer and Cp2Ti(P2Ar2) (
Andrey Petrov   +1 more
wiley   +1 more source

Core Components of Effective Home Visiting Programmes and Parenting Interventions Delivered by Nurses and Midwives—A Scoping Review

open access: yesJournal of Advanced Nursing, EarlyView.
ABSTRACT Aim To investigate international evidence on home visits and parenting interventions delivered by nurses and midwives and to identify core components, such as intervention content, programme characteristics, contextual factors and implementation elements shared by effective interventions. Design Scoping Review.
Outi Savolainen   +2 more
wiley   +1 more source

Experimental and theoretical studies of liquid sloshing at simulated low gravities [PDF]

open access: yes
Low gravity liquid sloshing in rigid cylindrical ...
Dodge, F. T., Garza, L. R.
core   +1 more source

Bis(silylene)‐Mediated N═N Bond Scission of Diazo Compounds

open access: yesAngewandte Chemie, Volume 138, Issue 18, 27 April 2026.
The carborane‐based bis(silylene) enables unprecedented N═N bond scission in diazodiarylmethanes. While xanthene‐ and aniline‐based scaffolds promote end‐on addition with partial N═N activation, the carborane‐based variant uniquely achieves complete N═N bond scission of Ar2C═N═N compounds, resulting in isolable disilicon nitride imino species.
Yun Xiong, Shenglai Yao, Matthias Driess
wiley   +2 more sources

Backbone double‐mutant cycle analysis quantifies hydrogen‐bond energies in proteins

open access: yesProtein Science, Volume 35, Issue 6, June 2026.
Abstract Protein structure is stabilized by a variety of noncovalent interactions, but many remain incompletely understood. For example, several potentially ubiquitous interactions involving the protein backbone have been identified, but challenges in determining reliable experimental energies have prevented their integration into structural models. To
Haoliang Zheng, Robert W. Newberry
wiley   +1 more source

Reversible Dihydrogen Splitting and Diradical Reactivity of 1,4‐Digermabenzene‐1,4‐diide

open access: yesChemistryEurope, Volume 4, Issue 5, May 2026.
The diradical reactivity of the 1,4‐digermabenzene‐1,4‐diide, [(ADC)Ge]2, has been demonstrated with a range of substrates. Notably, it undergoes reversible dihydrogen splitting and radical coupling with TEMPO (2,2,6,6‐tetramethylpiperidinyloxyl = RO), forming [(ADC)GeH]2 and [(ADC)Ge(OR)]2, respectively.
Falk Ebeler   +5 more
wiley   +1 more source

Simulated low-gravity sloshing in spherical tanks and cylindrical tanks with inverted ellipsoidal bottoms [PDF]

open access: yes
Simulated low gravity sloshing in spherical and cylindrical tanks with inverted ellipsoidal ...
Dodge, F. T., Garza, L. R.
core   +1 more source

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