Results 111 to 120 of about 134,869 (239)

Catalyst‐Controlled Divergent Strain‐Release Amination and Skeletal Remodeling of Bicyclo[1.1.0]Butanes

Angewandte Chemie, EarlyView.
Catalyst‐controlled nitrene transfer unlocks divergent reactivity of bicyclo[1.1.0]butanes. Rhodium catalysis promotes selective strain‐release amination to access cyclobutene and cyclobutane amino‐acid scaffolds, whereas visible‐light photocatalysis redirects nitrene reactivity toward double amination and skeletal remodeling, providing a complementary
Aksar Ali, Lennard Kloene, Justus Koedel, Yifan Guo, Minakshi Altia, Rene M. Koenigs   +5 more
wiley   +2 more sources

Acute postoperative pain in cesarean section and tubal ligation: A Prospective cohort [PDF]

Revista Chilena de Anestesia
Fabricio Andrés Lasso Andrade, Martha Patricia Lázaro Ovalle, Pedro José Herrera Gómez   +2 more
doaj   +1 more source

Role of Enzyme Technologies and Applied Enzymology in Valorising Seaweed Bioproducts

Marine Drugs
Seaweeds, classified as non-vascular plants, have definite advantages over terrestrial plants as they grow rapidly, can be cultivated in coastal environments, and are dependable and non-endangered sources of biomass.
Blessing Mabate, Lithalethu Mkabayi, Deandra Rochelle Goddard, Coleen Elizabeth Grobler, Brett Ivan Pletschke   +4 more
doaj   +1 more source

Severe Phenotype in an Indian Family With Progressive Pseudorheumatoid Arthropathy of Childhood

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Progressive pseudorheumatoid arthropathy of childhood (PPAC) is a rare autosomal recessive progressive condition that affects the cartilage of joints and bones. The symptoms of PPAC include stiffness of the joints, bony swelling of the toes and fingers, short stature, kyphosis, and muscle weakness.
Narinder Singh, Arpita Neogi, Liliane H. Gibbs, Jagdish Soni, Elizabeth Chao, Virginia Kimonis   +5 more
wiley   +1 more source

Orchestrating Anion–π+ Interactions to Accelerate Metal‐Free Room‐Temperature Phosphorescence

Angewandte Chemie, EarlyView.
Tuning anion–π+ interactions in pyridinium iodide contact ion pairs enables ultrafast metal‐free room‐temperature phosphorescence (540–605 nm) with radiative rates up to 5.2×105 s−1. Strong iodide→π+ charge‐transfer coupling, enhanced spin–orbit interactions, and dynamic ion‐pair organization accelerate intersystem crossing and emission, establishing ...
Eetu Hakkarainen, Corentin Montagne, Hao‐Cheng Lin, Chen‐Yu Lin, Khai‐Nghi Truong, Po‐Yu Chen, Anton Nechaev, Fabien B. L. Cougnon, Igor O. Koshevoy, Toni Eskelinen, Hao‐Wu Lin, Pi‐Tai Chou, Andrey Belyaev   +12 more
wiley   +2 more sources

Guerra, violencia y dolor en la trilogía de Antíbula de Fernando Aramburu

La trilogia ambientata ad Antibula rappresenta una svolta nella produzione di F. Aramburu, che propone una distopia caratterizzata da violenza, usurpazione, malvagità, osservate in un sistema collettivo quale quello sociale ...
Fiordaliso, Giovanna
core   +1 more source

Speed Control of Single Molecules on a Surface

Angewandte Chemie, EarlyView.
The speed of a single molecule moving across a silver crystal surface is determined with the tip of a scanning tunneling microscope (STM). Travelling distances Δx and travelling times Δt, which are determined simultaneously with high precision, allow to directly measure time–distance relationships.
Donato Civita, Matthew J. Timm, Julia Lanz, Christophe Nacci, Stefan Hecht, Leonhard Grill   +5 more
wiley   +2 more sources

Humanidad y tecnología. Herramientas educativas para un futuro sostenible

El texto explora la relación entre el ser humano y la tecnología, subrayando su importancia histórica en la adaptación y progreso de la humanidad. Hoy, con avances tecnológicos sin precedentes, es crucial reflexionar sobre su impacto en nuestra forma de ...
Fiorucci, Massimiliano, Crescenza, Giorgio, Roig-Vila, Rosabel, Sánchez Ronco, Alejandro   +3 more
core   +1 more source

Molecular Engineering of a Mixed‐Spacer System Toward High‐Performance Polycarbazole Anion‐Exchange Membranes

Angewandte Chemie, EarlyView.
Mixed‐spacer polycarbazole membranes balance conductivity, swelling, and stability by tuning hydration and ionic connectivity. The optimized membrane reaches 184 mS cm−1 hydroxide conductivity and 2.51 W cm−2 peak power density, offering a promising strategy for high‐performance ether‐free AEMs.
Hao Liu, Yingdan Cui, Chanikya D. Jayawardana, Mohammed Al Murisi, Hai Zhao, Md Waliullah Hossain, Zhitao Hu, Cem Arkun, Iftikhar Ahmad, Qi Wang, Sophya Garashchuk, William Mustain, Chuanbing Tang   +12 more
wiley   +2 more sources

Short Sb···Sb Contacts in Polymorphic Tris(p‐Tolyl)Antimony: A Hallmark of Organoantimony(III) Solid‐State Chemistry?

Angewandte Chemie, EarlyView.
Discovery of polymorphism in solid tris(p‐tolyl)antimony(III) highlighted short, direct antimony‐antimony contacts, with interatomic separation shorter than the sum of the van der Waals radii, and calculated interaction energy of ca. 26 kJ mol−1 that includes a significant dispersion component.
Imogen Suh, Michael Ferguson, Filip Topić, Fu‐Qiang Gong, Mihails Arhangelskis, Hatem M. Titi, D. Scott Bohle, Vinko Nemec, Levente Kiss, Andrew J. Morris, Cristian Silvestru, Dominik Cinčić, Tomislav Friščić   +12 more
wiley   +2 more sources