Results 181 to 190 of about 97,849 (246)

Scrutinizing the Wallacean shortfall: global gaps in snake occurrence data across space and environment

open access: yesEcography, EarlyView.
Occurrence records are fundamental for ecological and evolutionary research, providing key information on species' geographic ranges. However, these records are often taxonomically, spatially, and temporally biased, requiring caution in their use. Here, we analysed the spatial coverage of occurrence records for over 3500 snake species worldwide to ...
Lívia Frateles   +5 more
wiley   +1 more source

Synthesis and Characterization of Novel Silylated Sm3+ and Eu3+ Complexes Incorporated Into Mesoporous Silica Nanoparticles

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
The strategy of incorporating the Eu(tta‐Si)3(phen) and Sm(tta‐Si)3(phen)2 complexes prevented leaching of the complexes and preserved their intrinsic optical properties. Preliminary studies of silylated Ln3+ complexes and nanoparticles loaded with these complexes demonstrated cytotoxicity against cancer cells, with minimal cytotoxic effect on nontumor
Juliana Jorge   +11 more
wiley   +1 more source

Synthesis of Novel C‐Acyl‐Glycosyl Sulfonamides via Pd‐Catalyzed Carbonylative Coupling

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
A Pd‐catalyzed carbonylative coupling of 1‐iodo‐glycals with diverse sulfonamides using Mo(CO)6 enables efficient access to C‐acyl‐glycosyl sulfonamides.This robust and versatile strategy delivers novel glycoside derivatives in good to excellent yields, highlighting their potential for drug discovery.
João A. F. Silva   +5 more
wiley   +1 more source

Research in information science; an analysis of CNPq funded research

open access: yes, 2008
Analisam-se as pesquisas financiadas pelo CNPq, na área de ciência da informação, no período de 1984 a 1993. O objetivo do estudo é identificar as características gerais da atividade de investigação científica na ciência da informação. Por meio da análise das pesquisas foi possível apreender as principais instituições de pesquisas, o perfil dos ...
openaire   +1 more source

CNPQ - Diagnóstico 1992 e plano de ação 1993

open access: yesSequência: Estudos Juridicos e Politicos, 1993
Indisponí ...
openaire   +2 more sources

Validation and Application of an HPLC–UV Method for the Quantification of 3‐O‐Methylquercetin in Nasal Mucosa

open access: yesELECTROPHORESIS, EarlyView.
This study improved an HPLC–UV method for quantifying 3‐O‐methylquercetin in porcine nasal mucosa following ICH M10 and ANVISA (Brazil) guidelines, assessing selectivity, linearity, accuracy, precision, and robustness. The method was applied for the first time to evaluate release, permeation, and retention profiles of a nasal formulation.
Jeniffer Viviana Ramirez Hernández   +6 more
wiley   +1 more source

Rapport sur l'enquête CNRS - CNPq coopération France - Brésil

open access: yes, 1990
En 1987, l'Université Joseph Fourier de Grenoble a été chargée par le Directeur des Relations Internationales du CNRS de réaliser un bilan de la Coopération Scientifique et Technique entre la France et le Brésil. M. Servoz-Gavin, du Département de Recherche Fondamentale du C.E.N.G., a accepté de coordonner cette opération avec la participation de M ...
Servoz-Gavin, P.   +3 more
openaire   +1 more source

Determination of Flunixin Meglumine in Veterinary Pharmaceutical Formulations by Capillary Electrophoresis With Capacitively Coupled Contactless Conductivity Detection

open access: yesELECTROPHORESIS, EarlyView.
A CE‐C4D method was developed for the indirect determination of flunixin meglumine (FM) by quantifying meglumine and using lithium ions as an internal standard. The method allows the use of a low‐cost standard reagent, providing suitable analytical performance for the determination of FM in veterinary pharmaceutical formulations.
Letícia M. de Araujo   +2 more
wiley   +1 more source

Screening CZE–UV Green Method for Acetate, Propionate, Butyrate, and Valerate Analysis in Human Stool for Complementary Gut Dysbiosis Diagnosis

open access: yesELECTROPHORESIS, EarlyView.
A green CZE–UV alternative method for quantifying SCFAs in human stool with cost‐effective and automatization, informative data about patients through reduced sample preparation and minimal consumable. CE is simple and robust equipment for routine clinical laboratory workflows, supporting physicians with information that enhances the accuracy of ...
Olívia B. O. Moreira   +6 more
wiley   +1 more source

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