Results 11 to 20 of about 60,213 (163)

Mechanistic Insights and Catalytic Efficiency of a 2,2'-Bipyridine-Coordinated Peroxidovanadium Complex as a Haloperoxidase Biomimetic. [PDF]

open access: yesChempluschem
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]

open access: yesEvol Dev
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

open access: yesEcology and Evolution, Volume 11, Issue 21, Page 15085-15097, November 2021., 2021
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

The Food–Materials Nexus: Next Generation Bioplastics and Advanced Materials from Agri‐Food Residues

open access: yesAdvanced Materials, Volume 33, Issue 43, October 28, 2021., 2021
The state‐of‐the‐art strategies to upcycle agri‐food losses and wastes (FLW) into advanced materials are reviewed. The right accent is put on the feasible means of effectively deconstructing and reassembling, synthesizing, or engineering FLW‐derived monomeric, polymeric, and colloidal building blocks targeting multifunctional, sustainable bioplastics ...
Caio G. Otoni   +5 more
wiley   +1 more source

Experimental investigation of a small‐scale reactor with processed bio‐fuel pellets

open access: yesBiofuels, Bioproducts and Biorefining, Volume 15, Issue 5, Page 1496-1519, September/October 2021., 2021
Abstract A developing small‐scale reactor was examined using the principles of thermal engineering design. The thermodynamic state of the system, psychrometry, and gas dynamics of the moist gas were considered in order to evaluate the quality of the end use.
Alok Dhaundiyal   +2 more
wiley   +1 more source

Discovering the colours of industrial heritage characterisation of paint coatings from the powerplant at the Levada de Tomar

open access: yesJournal of Raman Spectroscopy, Volume 52, Issue 1, Page 208-216, January 2021., 2021
The material characterisation of industrial heritage was approached by the analytical study of three energy generators coatings, from the 20th‐century powerplant at Levada de Tomar, Portugal. μRaman spectrometry, μXRF, and SEM‐EDS enabled the identification of pigments' paint coatings, revealing complex paint systems for the oldest equipment (1924) and
Isabel Tissot   +5 more
wiley   +1 more source

Quantification of the least limiting water range in an oxisol using two methodological strategies

open access: yesRevista Brasileira de Ciência do Solo, 2014
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

Análise da desinfecção apical do canal radicular preparado em três diferentes comprimentos de trabalho, utilizando movimento rotatório contínuo ou reciprocante e duas substâncias irrigadoras: estudo in vitro

open access: yesRevista de Odontologia da UNESP, 2019
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

Comparative in vitro study of root roughness after instrumentation with ultrasonic and diamond tip sonic scaler Estudo comparativo in vitro da rugosidade radicular após instrumentação com ultrassom e pontas sônicas diamantadas

open access: yesJournal of Applied Oral Science, 2006
OBJECTIVE: The purpose of this study was to evaluate the root surface roughness after instrumentation with hand curette and diamond-coated sonic and universal ultrasonic tips.
Fernanda Vieira Ribeiro   +5 more
doaj   +1 more source

A 3‐Year Sample of Almost 1,600 Elves Recorded Above South America by the Pierre Auger Cosmic‐Ray Observatory

open access: yesEarth and Space Science, Volume 7, Issue 4, April 2020., 2020
Abstract Elves are a class of transient luminous events, with a radial extent typically greater than 250 km, that occur in the lower ionosphere above strong electrical storms. We report the observation of 1,598 elves, from 2014 to 2016, recorded with unprecedented time resolution (100 ns) using the fluorescence detector (FD) of the Pierre Auger Cosmic ...
A. Aab   +389 more
wiley   +1 more source

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