Results 51 to 60 of about 278,215 (318)

Growth inhibition and morphologic changes of HeLa cells exposed to unsaturated fatty acid fraction from the liver of x-ray irradiated rabbits (OX)

open access: yes, 1962
Biological effect of the unsaturated fatty acid fraction from the X-ray irradiated rabbit liver (OX) on HeLa cells has been observed in vitro comparing with the effect displayed on the same strain cells by the unsaturated fatty acid fraction from the non-
Yamamoto, Michio   +2 more
core   +1 more source

Carboxylate catalyzed isomerization of β,γ-unsaturated NAC thioesters

open access: yes, 2022
We demonstrate herein the capacity of simple carboxylate salts – tetrametylammo-nium and tetramethylguanidinium pivalate – to act as catalysts in the isomerization of β,γ-unsaturated thioesters to α,β-unsaturated thioesters.
Imre, Papai   +6 more
core   +1 more source

Water‐Compatible SuFEx‐Active Diazonium Linchpin Platform for Rapid Modular Diversification and On‐DNA Functionalization

open access: yesAdvanced Functional Materials, EarlyView.
Sulfur fluoride exchange (SuFEx) is a powerful click platform, yet water‐compatible multifunctional linchpins remain elusive. Here, we report decagram‐scalable diazonium linchpins that enable rapid Pd‐catalyzed diversification and direct, catalyst‐free on‐DNA ligation in aqueous media.
Seok Ju Hong   +5 more
wiley   +1 more source

Cascade Vinyl Radical Ipso-Cyclization Reactions and the Formation of ,-Unsaturated--aryl--lactams from NPropargyl Benzamides

open access: yes, 2021
Various N-(2-bromo-allyl) benzamides were used as the starting materials to study vinyl radical cyclization reactions. The vinyl radicals underwent ipso-cyclization, fragmentation, and cyclization reactions to produce β-aryl-γ-lactams with the carbonyl ...
Che-Chien Chang   +5 more
core   +1 more source

Ultrasmall High‐Entropy Materials: Nanoscale Effects, Synthesis, and Mechanistic Insights

open access: yesAdvanced Functional Materials, EarlyView.
This review article focuses on sub‐10 nm high‐entropy materials that combine nanoscale design with complex compositions for next‐generation applications. ABSTRACT Ultrasmall high‐entropy nanomaterials (USHENMs, <10 nm) merge multicomponent chemistry with size‐dependent effects, forming a distinct class of materials with unprecedented properties.
Yueyue He   +5 more
wiley   +1 more source

SUCTION MEASUREMENTS AND WATER RETENTION IN UNSATURATED SOILS [PDF]

open access: yes, 2008
Techniques for testing unsaturated soils have been investigated by the author where the measurement and control of parameters were undertaken directly. Suction was measured and controlled with a new high suction tensiometer and water content through mass
Lourenço, Sérgio Duarte Nunes
core  

Percolation threshold of carbon nanotubes filled unsaturated polyesters [PDF]

open access: yes, 2010
This paper reports on the development of electrically conductive nanocomposites containing multi-walled carbon nanotubes in an unsaturated polyester matrix.
Partridge, I. K.   +5 more
core   +1 more source

Toward Fast Proton Shuttling in Acidic Oxygen Evolution Reaction

open access: yesAdvanced Functional Materials, EarlyView.
This review establishes proton transfer dynamics as a descriptor governing acidic OER activity, moving beyond the kinetic constraints derived from the proton coupled electron transfer. We discuss how deprotonation governs classical mechanisms, including adsorbate evolution mechanism (AEM), lattice oxygen mechanism (LOM) and oxide path mechanism (OPM ...
Ashish Gaur   +3 more
wiley   +1 more source

RETRASO, a code for modeling reactive transport in saturated and unsaturated porous media

open access: yes, 2004
The code RETRASO (REactive TRAnsport of SOlutes) simulates reactive transport of dissolved and gaseous species in non-isothermal saturated or unsaturated problems.
Saaltink, Maarten   +13 more
core   +1 more source

Giant Magnetic Coercivity Driven by Spin‐Bag Ferromagnetism in Epitaxial Sr3YCo4O10+δ Films with Engineered 2D Oxygen Vacancy Ordering

open access: yesAdvanced Functional Materials, EarlyView.
A giant magnetic coercivity and a vertical shift of hysteresis loops are demonstrated in Sr3YCo4O10+δ epitaxial films. The hard magnetic behavior originates from ferromagnetic spin bags stabilized within a long‐range ordered oxygen‐vacancy structure.
Yanbin Chen   +12 more
wiley   +1 more source

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