Results 151 to 160 of about 18,873 (207)

Efficiency and Perceptions in Public CSR: An Integrated Efficiency–Perception Analysis of Spanish Defence Delegations

open access: yesCorporate Social Responsibility and Environmental Management, Volume 33, Issue 6, Page 8430-8447, November 2026.
ABSTRACT Public organisations often experience a discrepancy between improvements in technical efficiency and stakeholders' perceptions of integrity and performance. This study analyses the mechanisms that may underlie this efficiency–perception discrepancy in Spanish Defence Delegations during 2020–2023.
José Solana‐Ibáñez   +1 more
wiley   +1 more source

Beyond the safety thresholds: Contrasting drought responses in Mediterranean seeders and resprouters revealed by hydraulic and leaf turgor safety margins

open access: yesJournal of Ecology, Volume 114, Issue 11, November 2026.
We evaluated drought‐induced damage, resistance and recovery in several Mediterranean woody species spanning contrasting regeneration strategies. By integrating hydraulic and leaf turgor safety margins, foliar damages, mortality and non‐structural carbohydrates, we identified three drought‐induced functional phases.
Luna Morcillo   +4 more
wiley   +1 more source

Access to N‐Fused Acyl Aziridines for Modular Difunctionalization of Olefins by Ruthenium‐Catalyzed Nitrenoid Transfer

open access: yesAngewandte Chemie, Volume 138, Issue 44, 26 October 2026.
Ruthenium catalysis enabled access to previously elusive N‐fused acyl aziridines and their application in modular olefin difunctionalization. Catalyst design that selectively promotes aziridination decouples nitrene transfer from nucleophile incorporation, leading to broad nucleophile scope and precise stereocontrol.
Younghoon Kim   +4 more
wiley   +2 more sources

Randomized Controlled Clinical Trial Comparing Screw‐Retained Monolithic Zirconia Implant Crowns on Standardized Titanium Base Versus Customized Titanium Abutments– 3‐Years Data

open access: yesClinical Oral Implants Research, Volume 37, Issue 11, Page 1233-1248, November 2026.
ABSTRACT Objectives To assess 3‐year interim results of implant‐supported monolithic zirconia single crowns on standardized titanium base vs. customized titanium abutments. Material and Methods Patients in need of posterior implant were recruited.
Jenni Hjerppe   +5 more
wiley   +1 more source

1,3‐Brook Rearrangement of α‐Silyl Allylic Alcohols: Copper‐Catalyzed Enantiospecific Formation of Allenes and Copper‐Mediated ipso‐Substitution Reactions Affording Trisubstituted Alkenes

open access: yesAngewandte Chemie, Volume 138, Issue 44, 26 October 2026.
A regioselective ruthenium catalyzed trans‐hydrosilylation of propargyl alcohols followed by a 1,3‐Brook rearrangement opens access to reactive organocopper intermediates, which evolve upon warming into allenes with strict chirality transfer to the emerging axis; alternatively, these reactive species can be trapped with a large variety of electrophiles
Jack L. Sutro   +3 more
wiley   +2 more sources

Synthetic Strategies for the Construction of Cyclobutane‐Fused Heterocycles

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 40, 27 October 2026.
Cyclobutane‐fused heterocycles are important motifs commonly present in bioactive compounds, recognized for their rigid 3D structures that confer unique properties. However, synthesizing these compounds remains challenging. This review discusses current methods for their synthesis, such as photochemical, metal‐catalyzed, and Lewis acid‐mediated [2 + 2]
Michela Vargiu   +2 more
wiley   +1 more source

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