Results 71 to 80 of about 199,297 (234)

Zn/Al‐NO3 Layered Double Hydroxide as Alternative Activator for Nitrile Rubber Vulcanization: Effect of the Accelerator‐to‐Sulfur Ratio on Curing Kinetics and Network Properties

open access: yesJournal of Applied Polymer Science, EarlyView.
Zn/Al‐NO3 layered double hydroxide offers a low‐zinc alternative for sulfur vulcanization of nitrile rubber, reducing nominal zinc loading by an estimated 71%. Its potential as a vulcanization activator depends on the curing system: conventional curing preserves tensile strength despite slower kinetics, whereas efficient curing maintains comparable ...
Lucas Castro Roza de Faria   +8 more
wiley   +1 more source

Demonstrativo dos trabalhos das Comissões [Relatório anual: 1983]

open access: yes, 1983
Coordenação das Comissões ...
Brasil. Congresso Nacional. Câmara dos Deputados. Coordenação das Comissões Permanentes
core  

Herbarium‐based measurements are reliable predictors of fresh plant traits in Neotropical Myrtaceae

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise Herbarium specimens are increasingly used to extract morphological traits for ecological and evolutionary studies, yet the effects of tissue desiccation on trait measurements remain poorly understood. Here, we tested two hypotheses: (H1) whether higher tissue water content leads to greater measurement changes after herborization and ...
Yacov Kilsztajn   +4 more
wiley   +1 more source

Morphological and morphometric aspects of the equine aortic valve: New insights for comparative studies in mammals

open access: yesThe Anatomical Record, EarlyView.
Abstract New data on the equine aortic valve obtained using advanced techniques is especially important given the greater availability of animal models for translational research. Here we characterized the morphological and morphometric aspects of the equine aortic valve from 60 healthy hearts collected at equine abattoirs.
Vitor Pires Pereira   +3 more
wiley   +1 more source

Demonstrativo anual dos trabalhos das comissões [Relatório anual: 1980]

open access: yes, 1980
Coordenação das Comissões ...
Brasil. Congresso Nacional. Câmara dos Deputados. Coordenação das Comissões Permanentes
core  

Characterization of the extracellular matrix from human and dog umbilical cords

open access: yesThe Anatomical Record, EarlyView.
Abstract The extracellular matrix is important for maintaining tissue morphogenesis and homeostasis; it can also be used as a biomaterial for the production of biological scaffolds. Particularly, the umbilical cord has shown potential in the production of scaffolds for small‐diameter vessels.
Ana Carla Mendonça   +6 more
wiley   +1 more source

Coordenação Geral de Acompanhamento Operacional de Convênios do Programa Segundo Tempo (2013)

open access: yes, 2013
Material de apoio com a apresentação da Coordenação Geral de Acompanhamento Operacional de Convênios (CGAO) do Programa Segundo Tempo (PST) de 2013, contendo atribuições, procedimentos e as fases de execução.
Coordenação Geral de Acompanhamento Operacional de Convênios   +1 more
core  

Much more than their fangs: Macroscopic anatomy of the brain of Bothrops moojeni Hoge 1966 (Squamata, Serpentes, Viperidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract Neuroanatomical research has progressed considerably in several vertebrate lineages, yet studies of reptilian brain morphology remain markedly underdeveloped. Here we provide the first description of macroscopic brain anatomy and its ontogeny in the viperid Bothrops moojeni, based on a sample of seven individuals.
Paula Araújo   +2 more
wiley   +1 more source

Hepatic morphology and serum biochemical profile according to dry and rainy seasons in Pygocentrus nattereri (Characiformes: Serrasalmidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract This study investigated the physiological and morphological adaptations of the liver of the carnivorous fish Pygocentrus nattereri (piranha) in response to seasonal variations (dry and rainy seasons) in the Brazilian Pantanal. The objective was to describe how the liver, a central organ in metabolic regulation, responds to environmental ...
Maria Eduarda Corona Garcia   +9 more
wiley   +1 more source

A não delimitação de subgrupo via adjetivos avaliativos

open access: yesAlfa: Revista de Lingüística, 2004
<p>Neste artigo propomos que adjetivos não delimitam subgrupo a partir de um grupo genérico. Demonstramos que, em português, tal delimitação não se verifica, considerando a não ocorrência da estrutura <strong>[N + Adjetivo Avaliativo ...
Albano Dalla Pria
doaj  

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