Results 211 to 220 of about 3,014,245 (329)

Reversal of Regioselectivity in the Nucleophilic Fluorination of 1,2‐Dimesylate with Potassium Fluoride and 18‐Crown‐6

open access: yesAsian Journal of Organic Chemistry, EarlyView.
An unexpected regio‐ and chemoselectivity was found for nucleophilic fluorination of a terminal vicinal dimesylate. Theoretical calculations were used to explain the origin of this effect. Abstract The control of chemoselectivity and regioselectivity in chemical reactions is a crucial area of research, focused on achieving the desired product with high
Eloah P. Ávila   +3 more
wiley   +1 more source

MiR‐221‐3p Attenuates IL‐33‐Induced Mast Cell Cytokine Expression by Targeting KIT

open access: yesInternational Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Mast cells (MCs) are involved in type 2 inflammation in chronic rhinosinusitis with nasal polyps (CRSwNP), which depends on interleukin (IL)‐33 stimulation. MiR‐221 is reported to be an important regulator of MCs, and miR‐221‐3p can be expressed in CRSwNP. However, the role of miR‐221‐3p in CRSwNP is unclear. Methods Ethmoid tissues
Ruowu Liu   +11 more
wiley   +1 more source

Expert Strategies: Skull Base Reconstruction—Global Perspectives, Insights, and Algorithms through a Mixed Methods Approach

open access: yesInternational Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Objective There is limited consensus on endoscopic skull base surgery (ESBS) reconstruction principles. This study aims to generate comprehensive themes regarding ESBS reconstruction by pooling the experiences of ESBS experts, with comparison to a literature review of current published evidence.
Edward C. Kuan   +77 more
wiley   +1 more source

[Adaptation of the Edmonton Obesity Staging System to Brazilian PortugueseAdaptación del sistema de estadios de la obesidad de Edmonton al contexto brasileño]. [PDF]

open access: yesRev Panam Salud Publica
Monteiro ELF   +8 more
europepmc   +1 more source

Sôbre Naididae do Brasil

open access: gold, 1943
Ernst Marcus
openalex   +1 more source

Molecular Profiling and Tumor Microenvironment in Sinonasal Mucosal Melanoma as Biomarkers for Enhanced Prognostic Stratification

open access: yesInternational Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Sinonasal mucosal melanoma (SNMM) is a rare and aggressive melanoma subtype with a notably poor prognosis. Despite molecular characterization advances, SNMM remains clinically challenging, highlighting the need for detailed molecular profiling.
Manuel Molina‐Garcia   +10 more
wiley   +1 more source

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