Results 61 to 70 of about 542,424 (347)

Downy mildew resistance and genetic variability in a wild rocket germplasm collection

open access: yesAgronomy Journal, Volume 114, Issue 6, Page 3083-3095, November/December 2022., 2022
Abstract One hundred accessions of a “core collection” of Diplotaxis tenuifolia (L.) DC. and Eruca spp. were screened at seedling stage for resistance to downy mildew. Accessions tested at the seedling stage were assigned to 0–6 interaction phenotypes.
Paula S. Coelho   +5 more
wiley   +1 more source

Avanços tecnológicos: uma proposta de abordagem mediante uma sequência didática

open access: yesRevista Thema, 2017
Este trabalho teve por objetivo relatar os resultados obtidos no desenvolvimento de uma sequência didática (SD) sobre avanços tecnológicos. A experiência didática foi realizada em uma escola pública da cidade de São Paulo com estudantes dos anos finais ...
Sandra Aparecida de Oliveira e Souza   +1 more
doaj   +1 more source

Performance Evaluation of a Substrate Integrated Waveguide Antenna for Vehicular Networks [PDF]

open access: yesTecnologia e Innovacion en la Ingenieria. 1st Edition (2018) 438-467. Bogota, Colombia. Editorial Bonaventuriana. ISBN 978-958-8928-72-2, 2019
This paper describes the design and evaluation of a Substrate Integrated Waveguide (SIW) antenna operating at 2.4 GHz. This antenna was designed as a possible solution for the implementation of the vehicular networks (VANETs). The main advantages of the SIW antennas, such as their simplicity, small size and low cost, make this kind of antennas ...
arxiv  

The Influence of Annealing on the Sb Layer in the Synthesis of [001]‐Oriented Sb2Se3 Film for Photoelectrochemical Hydrogen Gas Generation

open access: yesAdvanced Functional Materials, EarlyView.
[001]‐oriented Sb2Se3 film with improved crystallinity and adjusted composition is achieved via a new thermal treatment approach consisting of preliminary annealing of the Sb layer before its selenization. The findings of this work demonstrate enhanced charge carriers' transportation, a stable performance, and an improvement of H2 generation from ...
Magno B. Costa   +7 more
wiley   +1 more source

Evolução dos estudos sobre a produção de bovinos de corte e a emissão de gases de efeito estufa decorrente dessa atividade na região central do Brasil

open access: yesDesenvolvimento e Meio Ambiente, 2018
A preocupação com as mudanças climáticas globais tem se tornado cada vez mais evidente com o aumento de debates e discussões sobre o tema em âmbito internacional.
Julhana Dias Fachinetto   +1 more
doaj   +1 more source

Analise dinamica da tendencia para o equilibrio num modelo simples: a Segunda Lei de Newton e a Segunda Lei da Termodinamica [PDF]

open access: yesCiencia e Tecnologia dos Materiais, Vol. 14, 2/3 (2002), 2002
We relate Newton's Second Law with the Second Law of Thermodynamics through the analysis of a simple model introducing a dynamic pressure concept. From this analyses we can clarify some conceptual problems resulting from several concepts of heat and work on the First Law of Thermodynamics.
arxiv  

Tecnologia

open access: yes, 2018
IMAGEN SOBRE APRECIACIÓN DE LA ...
openaire   +2 more sources

Tecnologia educacional baseada em Nola Pender: promoção da saúde do adolescente

open access: yes, 2018
RESUMO Objetivo : apresentar uma tecnologia educativa em Enfermagem, voltada para adolescentes, acerca da vacinacao contra o HPV, baseada no modelo de promocao da saude de Nola Pender. Metodo: estudo qualitativo, descritivo, do tipo relato de experiencia,
Aliniana da Silva Santos   +5 more
semanticscholar   +1 more source

Gasotransmitters in Modern Medicine: Promises and Challenges in the Use of Porous Crystalline Carriers

open access: yesAdvanced Healthcare Materials, EarlyView.
This perspective provides an overview of the growing interest in utilizing various gasotransmitters—small gaseous signaling molecules namely nitric oxide (NO), carbon monoxide (CO), and hydrogen sulfide (H2S)—for several therapeutic applications, with emphasis on the potential use of porous materials as carriers to provide safe and controlled local ...
Rosana V. Pinto   +2 more
wiley   +1 more source

Exo-muscle: A semi-rigid assistive device for the knee [PDF]

open access: yes
In this work, we introduce the principle, design and mechatronics of Exo-Muscle, a novel assistive device for the knee joint. Different from the existing systems based on rigid exoskeleton structures or soft-tendon driven approaches, the proposed device leverages a new semi-rigid principle that explores the benefits of both rigid and soft systems.
arxiv   +1 more source

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