Results 11 to 20 of about 2,688 (117)
Mechanistic Insights and Catalytic Efficiency of a 2,2'-Bipyridine-Coordinated Peroxidovanadium Complex as a Haloperoxidase Biomimetic. [PDF]
A peroxidovanadium(V) complex mimics vanadium haloperoxidases for eco‐friendly halogenation of organic substrates. Density functional theory studies reveal two major reaction pathways for iodide/bromide oxidation. The catalyst offers high‐yield bromination/iodination of 8‐hydroxyquinoline (73/86%) under mild conditions (30 °C, pH 5.8), and it also ...
Fachini LG +6 more
europepmc +2 more sources
The Evolution of Skull Shape in Boana faber Clade: Unraveling Heterochrony's Influence. [PDF]
The skull shape evolution of the Boana faber clade demonstrates a specific skull shape for each species, ontogenetic and evolutionary allometries, and a peramorphic tendency within the clade. ABSTRACT Variation in shape and size within a lineage, driven by developmental processes, plays a key role in diversification.
de Abreu E Melo-Moreira D +4 more
europepmc +2 more sources
Competition dynamics in long‐term propagations of Schizosaccharomyces pombe strain communities
In this study, we have propagated yeast communities of 2, 3, 4, and 5 strains for about 400 generations and asked which fitness‐related phenotypes—maximum growth rate or relative competitive fitness—would better predict the outcome of the focal strain during the propagations.
Paulo Durão +3 more
wiley +1 more source
Quantification of the least limiting water range in an oxisol using two methodological strategies
The least limiting water range (LLWR) has been used as an indicator of soil physical quality as it represents, in a single parameter, the soil physical properties directly linked to plant growth, with the exception of temperature. The usual procedure for
Wagner Henrique Moreira +5 more
doaj +1 more source
Resumo Introdução O preparo do canal radicular, em especial o terço apical, é fundamental para o sucesso da terapia endodôntica, pois abriga o forame radicular, local que comunica o endodonto com os tecidos perirradiculares.
Rodrigo Pimentel LINS +3 more
doaj +1 more source
A finalidade deste estudo foi verificar o nível de ansiedade de alunos de graduação em enfermagem frente à primeira instrumentação cirúrgica. A amostra foi constituída por 30 estudantes do sexto semestre, que cursaram a disciplina Enfermagem em Centro ...
Rachel de Carvalho +2 more
doaj +1 more source
Sensores capacitivos operando em radiofreqüências são considerados ferramentas mais adequadas para a estimativa on-line do teor de água de grãos por meio de sua utilização na medição da permissividade elétrica relativa (épsilon') e do fator de perda ...
Pedro A. Berbert +5 more
doaj +1 more source
CONTROLE DE PROCESSO EM LABORATÓRIO DE PROCESSAMENTO MINERAL
O controle de processo tem grande importância nas plantas de tratamento de minérios. A instrumentação utilizada é incipiente na maior parte das usinas. Isto se deve provavelmente à ausência deste conteúdo no currículo dos cursos técnicos e de graduação ...
José Yvan Pereira Leite +3 more
doaj +1 more source
Axis instrumentation: surgical results
OBJECTIVE: Evaluate the surgical results of axis screw instrumentation. METHODS: Retrospective evaluation of the clinical and radiological data of patients submitted to axis fixation using screws. RESULTS: Seventeen patients were surgically treated.
Andrei F. Joaquim +4 more
doaj +1 more source
Abstract This study evaluates the potential of a new organic fertilizer derived from porcine intestinal mucosa (designated BHE), a by‐product of the heparin extraction process, as a sustainable nitrogen (N) source for agriculture. The work was conducted in two stages: (i) chemical and spectroscopic characterization of BHE compared with poultry litter ...
Aline Zanquetti +3 more
wiley +1 more source

