Results 141 to 150 of about 1,476,323 (279)

CONSIDERAÇÕES SOBRE O USO DA TECNOLOGIA NA INFÂNCIA

open access: yesPretextos
O presente trabalho pretende investigar as formas de relacionamento da atualidade, no que concerne aos anos iniciais da criança, permeadas pelo processo de virtualização, e analisar as consequências do uso dos eletrônicos na fase inicial de ...
Eduardo Toshio Kobori
doaj  

Methane Catalytic Amidation via a Plausible Copper-Nitrene Intermediate. [PDF]

open access: yesJ Am Chem Soc
Martínez-Laguna J   +6 more
europepmc   +1 more source

A Novel Green Method for Producing Medical‐Grade Chitosan From Loligo plei Squid Pens

open access: yesJournal of Applied Polymer Science, EarlyView.
This work demonstrates a sustainable and simplified process for the production of medical‐grade chitosan from the feathers of the squid Loligo plei, employing mild chemical treatments to preserve the integrity of the polymer while achieving high purity and performance.
Talita Martins   +7 more
wiley   +1 more source

Política i tecnologia [PDF]

open access: yes, 2016
Tresserras, Joan Manuel,
core  

Design of Experiments‐Based Optimization of Recovered Carbon Black–Reinforced Isobutylene–Isoprene Rubber in Comparison With Conventional Carbon Black Systems

open access: yesJournal of Applied Polymer Science, EarlyView.
Optimized potential of rCB via DOE: recovered carbon black from end‐of‐life tires was assessed as a full substitute for conventional carbon black in IIR composites. DOE and response surface methodology optimized rCB loading, plasticizer, and sulfur contents. Hardness showed linear trends, while rupture energy was nonlinear.
Vinícius Guedes Gobbi   +3 more
wiley   +1 more source

Comparative and functional anatomy of masticatory muscles and bite force in opossums (Didelphimorphia, Didelphidae)

open access: yesThe Anatomical Record, EarlyView.
We describe the functional anatomy of masticatory muscles in nine opossums, finding a generalized anatomical pattern with differences related to skull morphology. Variation in quantitative myological data and estimated bite force was mostly related to size, and the increase in bite force supports dietary diversification associated with size increase ...
Juann A. F. H. Abreu, Diego Astúa
wiley   +1 more source

VISUALIZACION Y TECNOLOGIA [PDF]

open access: yes, 2005
Spinadel, Vera W. de
core  

Revisiting a long‐overlooked skull: Implications for the distribution of Dinodontosaurus brevirostris (Kannemeyeriiformes) in the Brazilian Triassic

open access: yesThe Anatomical Record, EarlyView.
Abstract Dicynodonts (Anomodontia: Dicynodontia) were one of the main groups of terrestrial tetrapods in Permian and Triassic faunas. In Brazil, the genus Dinodontosaurus is one of the most common tetrapod taxon in the Triassic Santa Maria Supersequence. This genus has a complex taxonomic history and is represented in the Triassic of both Argentina and
Julia Lara Rodrigues de Souza   +5 more
wiley   +1 more source

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