Results 131 to 140 of about 10,690,430 (278)

ESTUDIO EXPERIMENTAL Y TEÓRICO DE LA SÍNTESIS DE N-ALQUIL-NITROIMIDAZOLES EXPERIMENTAL AND THEORETICAL STUDY OF SHYNTESIS OF N-ALKYL-NITROIMIDAZOLES.

open access: yesVitae, 2010
En este trabajo se realizó un estudio experimental y teórico sobre la N-alquilación de nitroimidazoles. Los N-alquil-2-metil-nitroimidazoles corresponden a moléculas con actividad biológica, que se obtienen por la reacción del 2-metil-5-nitroimidazol y ...
Constain SALAMANCA M   +2 more
doaj  

Delayed Biliary Hemorrhage due to Pseudoaneurysm Rupture Caused by Migration of Placed Plastic Stent After Endoscopic Ultrasound‐Guided Hepaticogastrostomy

open access: yesDEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT Endoscopic ultrasound‐guided hepaticogastrostomy (EUS‐HGS) is an effective method for cases where transpapillary approaches to pancreato‐biliary diseases are challenging, though serious complications often occur. Here, we report an extremely rare case of delayed biliary hemorrhage due to pseudoaneurysm rupture after EUS‐HGS, caused by ...
Yu Akazawa   +7 more
wiley   +1 more source

Genetic diversity and molecular phylogeographic analysis of an alien praying mantis, Hierodula chinensis, in Japan

open access: yesEntomological Science, Volume 29, Issue 1, March 2026.
Analysis of the COI gene in 127 individuals of Hierodula chinensis from 40 sites in Japan revealed 18 haplotypes that clustered into two genetically distinct clades. Thirteen haplotypes were each detected in only a single prefecture, whereas five haplotypes were found across multiple prefectures. Abstract Hierodula chinensis Werner (Mantodea: Mantidae),
Raito Ioka   +4 more
wiley   +1 more source

Understanding molecular level properties of N(n-butyl)-N′-[p-chlorophenoxy) acetyl]urea by density functional, molecular docking and molecular dynamics computations

open access: yesResults in Chemistry
Geometry optimization was made for N-(n-butyl)-N′-[(p-chlorophenoxy) acetyl] Urea (BPCAU), employing DFT/B3LYP/6–311++G(d,p) level of theory. The computations revealed the presence of intra-molecular hydrogen bond. Same level of theory was used to obtain
J. Sunil   +3 more
doaj   +1 more source

Multiaxial Creep Rupture Life Evaluation for Austenitic Stainless Steels Using Weld‐Type Miniature Cruciform Specimen

open access: yesFatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 3, Page 1136-1142, March 2026.
ABSTRACT A multiaxial creep testing technique using a weld‐type miniature cruciform specimen was developed to evaluate the creep properties and rupture life of Super 304H austenitic stainless steel at 973 K (700°C). The cruciform specimen was designed to achieve a plane stress state and overcome material dimensional limitations.
Noritake Hiyoshi, Shengde Zhang
wiley   +1 more source

Photoinduced, Chemoselective γ‐Alkylation of 2‐Silyloxyfurans With α‐Bromoketones: A Rapid Entry to Chiral ε‐Keto‐γ‐Butenolides

open access: yesChemistry – A European Journal, Volume 32, Issue 5, 2 February 2026.
A photoinduced, regio‐ and chemoselective γ‐alkylation of 2‐silyloxyfurans with a‐bromoketones was achieved by exploiting a photoredox catalytic process promoted by blue light. This approach provides practical and efficient access to chiral, ε‐ketobutenolides, in one step and high yields.
Debora Guazzetti   +9 more
wiley   +1 more source

Tailoring Redox Active Sites with Dual‐Interfacial Electric Fields for Concurrent Photocatalytic Biomass Valorization and H2 Production

open access: yesAdvanced Functional Materials, Volume 36, Issue 12, 9 February 2026.
A rationally engineered bifunctional photocatalyst is reported, which achieves simultaneous selective oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐diformylfuran (DFF) and efficient H2 evolution. By precisely positioning Au and Co3O4 on Zn3In2S6 nanosheet, dual interfacial electric fields are well constructed to spatially separate ...
Shiqing Li   +8 more
wiley   +1 more source

Nanoconfinement‐Steered Molecular Preorganization Enables Efficient Monoethanolamine Degradation through Electronically Modulated High‐Valent Iron–Oxo Pathways

open access: yesAdvanced Science, Volume 13, Issue 8, 9 February 2026.
Precise modulation of reaction pathways remains an unresolved challenge in peroxymonosulfate‐activated advanced oxidation processes. The spatial preorganization strategy in engineered confinement architecture enables regioselective bond cleavage in monoethanolamine via synergistic proton–electron transfer, redirecting its degradation from nonselective ...
Lin Zhang   +11 more
wiley   +1 more source

Differences in Oxytocin Response Between a Group of Friends and a Group of Strangers Following Facilitated Drum Circle Activities

open access: yesBrain and Behavior, Volume 16, Issue 2, February 2026.
Elementary school girls participated in a facilitated drum circle with either friends or strangers. Participation with friends increased salivary oxytocin, whereas no increase occurred with strangers. Cortisol levels did not differ between groups. Preexisting social bonds may influence oxytocin responses during facilitated drum circle participation ...
Mitsuru Kikuchi   +4 more
wiley   +1 more source

Age‐Stratified Associations of Sarcopenic Obesity With Mortality in Type 2 Diabetes

open access: yesJournal of Cachexia, Sarcopenia and Muscle, Volume 17, Issue 1, February 2026.
ABSTRACT Background Sarcopenic obesity, the coexistence of sarcopenia and obesity, has been linked to adverse health outcomes due to comorbidity. Evidence on the association between sarcopenic obesity and mortality among individuals with Type 2 diabetes remains limited Methods Sarcopenic obesity was defined using Japan Working Group on Sarcopenic ...
Shinta Yamamoto   +16 more
wiley   +1 more source

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