Cascade reaction of α-aryl vinyl and propargyl sulfonium salts with carbon nucleophiles: synthesis of functionalized benzyl and homoallyl thioethers.

We report a cascade reaction of α-aryl vinyl and propargyl sulfonium salts with C-nucleophiles, resulting in the formation of functionalized benzyl and homoallyl thioethers, respectively, in good yields. In this novel reaction, a vinyl sulfonium derivative undergoes Michael addition with a C-nucleophile followed by [2,3]-sigmatropic rearrangement. This domino reaction is very general and takes place readily under mild conditions.

UVREK: Development and Analysis of an Expression Profile Knowledgebase of Biomolecules Induced by Ultraviolet Radiation Exposure.

Humans encounter diverse environmental factors which can have impact on their health. One such environmental factor is ultraviolet (UV) radiation, which is part of the physical component of the exposome. UV radiation is the leading cause of skin cancer and is a significant global health concern.

Immunology of Biliary Atresia.

Biliary atresia is a progressive neonatal cholangiopathy that leads to liver failure. Characterized by inflammation-mediated liver injury, the immune system plays a critical role in the pathogenesis of this disease. Though several types of immune cells and mediators have been implicated in animal models of biliary atresia, emerging literature reflects the complex interplay of components of the immune response that contributes to disease progression in humans.

Evaluation of the shear bond strength of surface-treated cobalt-chromium metal crowns on Corticobasal® implant abutments cemented using different luting agents.

Purpose: This in-vitro study aimed to compare the shear bond strength (SBS) of cobalt-chromium (Co-Cr) crowns on Corticobasal® implant abutments, evaluating the effects of two surface treatments and two luting agents.

Materials And Methods: Thirty Co-Cr crowns were fabricated using CAD-CAM technology with a direct metal laser sintering process and divided into three groups based on surface treatment: Group I (untreated), Group II (sandblasted with 50 μm Al₂O₃), and Group III (Er: YAG laser etching). Each group was further subdivided based on luting cement: Sub group A (GC Fuji Plus) and Sub group B (Rely X U200).

Bernoulli polynomials for a new subclass of Te-univalent functions.

This paper introduces a novel subclass, denoted as , of Te-univalent functions utilizing Bernoulli polynomials. The study investigates this subclass, establishing initial coefficient bounds for , , and the Fekete-Szegö inequality, namely , are derived for this class. Additionally, several corollaries are provided to further elucidate the implications of the findings.