Results 221 to 230 of about 227,483 (326)

Triplet 4‐Nitrenemethyl‐Pyridine‐N‐Oxide: A Model Alkyl Nitrene Isolated in Cryogenic Matrices

open access: yesJournal of Physical Organic Chemistry, Volume 39, Issue 5, May 2026.
The simplest triplet alkyl nitrene bearing a pyridine‐N‐oxide moiety was generated by direct irradiation (λ > 350 nm) of the corresponding azide in an Ar matrix at 15 K. Quantum tunneling 1,2‐H shift to the corresponding imine is thermodynamically favorable but does not occur due to a high‐energy barrier (~36 kcal mol−1).
Cláudio M. Nunes   +5 more
wiley   +1 more source

The efficacy of carbon dioxide laser applications in tonsillectomy: systematic review. [PDF]

open access: yesLasers Med Sci
Wiench R   +4 more
europepmc   +1 more source

Earth's Lower Mantle Predominated by Ferric Iron‐Rich Bridgmanite Inferred From High Pressure Elasticity Measurements

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The absence of sound‐velocity data spanning the entire lower mantle pressures for (Fe, Al)‐bearing bridgmanite impedes direct comparisons with seismic wave observations, leaving the chemistry of the lower mantle unresolved. The present ultra‐high pressure sound‐velocity measurements of in situ synthesized (Fe, Al)‐bearing bridgmanite up to 130 
P. Saha, M. Murakami, N. Miyajima
wiley   +1 more source

2‐Phenylquinolines Exhibit Anti‐Severe Acute Respiratory Syndrome Coronavirus‐2 Activity Through the Nonstructural Protein 13 Helicase Inhibition

open access: yesChemMedChem, Volume 21, Issue 7, 14 April 2026.
A SAR study led to the identification of new 2‐phenylquinoline‐based derivatives that exhibit anti‐Severe Acute Respiratory Syndrome Coronavirus‐2 (SARS‐CoV‐2) activity by acting as ATP‐competitive inhibitors of nonstructural protein 13 (nsp13) helicase.
Giada Cernicchi   +24 more
wiley   +1 more source

Opportunities of Highly Oxidized Single‐Walled Carbon Nanotubes for Electrochemical and Electromechanical Applications

open access: yesChemSusChem, Volume 19, Issue 7, 14 April 2026.
This review presents recent advances in highly oxidized SWCNTs, which retain sp2 structural integrity while offering abundant surface functionalities and dispersant‐free processability. It highlights controlled oxidation strategies, enhanced interfacial reactivity, and their broad applicability—from wet‐spun fibers and chemical sensors to ...
Joo Hwan Jin   +9 more
wiley   +1 more source

Advances in Laser Therapy for Hidradenitis Suppurativa: A Systematic Assessment of Current Evidence. [PDF]

open access: yesJ Clin Med
Gawroński M   +6 more
europepmc   +1 more source

Laser Metal Powder Deposition of Titanium Microalloyed HSLA Steel FeC0.12Si0.25Mn1.3

open access: yesAdvanced Engineering Materials, Volume 28, Issue 7, 8 April 2026.
This study investigates the additive manufacturing of titanium‐doped high‐strength low‐alloy (HSLA) steel via laser metal deposition. It reveals distinct process‐structure relationships for elemental powder blends compared to prealloyed feedstocks.
Olaf Stelling   +2 more
wiley   +1 more source

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