Results 211 to 220 of about 102,791 (309)

Polarity‐Directed Synthesis of an Exfoliable 2D Polyoxometalate‐Based Metal‐Organic Framework for Noble Metal‐Free Alkyne Transfer Semi‐Hydrogenation

open access: yesAngewandte Chemie, Volume 138, Issue 29, 13 July 2026.
Exfoliation of 2D nanosheets based on polyoxometalate metal‐organic frameworks (POMOFs) gives access to nanostructures with selective catalytic reactivity for the alkyne transfer semi‐hydrogenation which outperform the bulk references and rival some classical noble metal‐based catalysts.
Xusheng Dai   +10 more
wiley   +2 more sources

Intra‐annual transfer of hydrogen and oxygen isotopic signals from water and sugar precursors to tree rings: Processes and mechanisms

open access: yesNew Phytologist, Volume 251, Issue 3, Page 1143-1160, August 2026.
Intra‐annual radial growth of beech and spruce in 2021 and 2022. Summary The oxygen (δ18O) and hydrogen (δ2H) isotope compositions of leaf and xylem water shape tree‐ring isotope baselines, while the fraction of sugars undergoing isotopic modification downstream of leaves (fO, fH) determines the dominant hydrologic signal.
Haoyu Diao   +10 more
wiley   +1 more source

Spatially Heterogeneous Impacts of Urbanization in Reshaping the Dry and Hot Extremes Across Chinese Cities

open access: yesGeophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Escalating climatic hazards have posed considerable challenges to urban resilience and sustainable development. By integrating national‐scale meteorological data, this research elucidates how urbanization reshapes the dry and hot extremes across China at various temporal scales and within a regional framework.
Hui Zhang   +5 more
wiley   +1 more source

A Portable Colorimetric Device for Rapid Bacterial Detection with Cleavable Functional Nucleic Acid Probes for A Common Bacterial Endoribonuclease

open access: yesAngewandte Chemie, Volume 138, Issue 28, 6 July 2026.
A simple, rapid, and portable gold‐coated filter tip‐based assay (GFTA) is developed for bacterial detection. The GFTA leverages cleavable functional nucleic acid probes as molecular recognition elements to target RNase H2, a highly conserved bacterial endoribonuclease, enabling sensitive and specific colorimetric detection of bacterial pathogens ...
Jiuxing Li   +4 more
wiley   +2 more sources

Balloon-occluded hepatic arterial infusion for unresectable hepatocellular carcinoma: a phase II trial interim analysis. [PDF]

open access: yesFront Oncol
Li F   +16 more
europepmc   +1 more source

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