Water
Mostrando 1-12 de 23402 artigos, teses e dissertações.
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1. Qual o sistema adesivo deve ser utilizado durante a técnica de dentina úmida?
Durante a utilização da técnica de adesão à dentina úmida os sistemas adesivos mais recomendados são os que contêm em sua composição os solventes álcool ou acetona
. A razão do melhor desempenho desse tipo de solvente em dentina úmida é que, após a desmineralização e exposição das fibras de colágeno, estas se mantêm expandidas
Núcleo de Telessaúde Sergipe. Publicado em: 12/06/2023
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2. Different water availability in the economic water productivity in soybean cultivars
ABSTRACT The present work aims to evaluate grain productivity, water productivity, and economic water productivity of three soybean cultivars under supplementary irrigation. Two experiments were conducted during the 2018 and 2019 harvests in Santa Maria/RS, Brazil. The experimental design consisted of a random bifactorial block design with six irrigation dep
Revista Ceres. Publicado em: 2023
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3. Grazing management under integrated crop-livestock system on physical soil attributes and grain yield soybean
ABSTRACT Integrated crop-livestock system (ICLS) can help improve the soil physical attributes, increasing the nutrients cycling and yield potential. We evaluated the effect of forage height management under ICLS on physical soil attributes and water infiltration. Field experiment was carried out for two consecutive years in a randomized complete block desig
Revista Ceres. Publicado em: 2023
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4. Irrigation Management in the Paricá Seedlings Development in Amazon Region
ABSTRACT Paricá is a native tree to the Amazon region recognized for several socioeconomic applications. However, there are few studies on the influence of irrigation regime in the seedling stage. Thus, the objective of the research was to evaluate the effect of water depths and irrigation frequency on the development of Paricá seedlings in the edaphoclima
Revista Ceres. Publicado em: 2023
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5. Physiology of the forage cactus cultivate Opuntia stricta (Haw.) Haw under different irrigation frequencies in the Semiarid
ABSTRACT The objective of this work was to evaluate the physiological variables of the cultivar Opuntia stricta (Haw.) Haw in the first cycle and in the regrowth, under different frequencies of drip irrigation, cultivated in the Agreste da Paraíba mesoregion. Therefore, a randomized block design was used, with 2 treatments (irrigation frequencies) and 4 rep
Revista Ceres. Publicado em: 2023
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6. Nicotine as a Catalyst for Chlorination Promoted by Hypochlorous Acid: Experimental and Theoretical Studies
There is robust evidence of the hypochlorous acid (HClO)-mediated damage in biomolecules, and nicotine boosts the chlorination potency of HClO. We present experimental and theoretical evidence of the mechanism by which nicotine catalyzes the chlorination of pyranine. The rate constants for chlorination of pyranine by HClO were measured in the presence (5.3 �
Journal of the Brazilian Chemical Society. Publicado em: 2023
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7. Efficient Encapsulation and Controlled Release of N,N-Diethyl-3-methylbenzamide (DEET) from Oil-in-Water Emulsions Stabilized by Cationic Nanocellulose and Silica Nanoparticles
Oil-in-water emulsions containing N,N-diethyl-3-methylbenzamide (DEET) were developed aiming to extend the sustained release of the active compound, by using two oppositely charged nanomaterials, namely silica nanoparticles (SiNP) and cationic cellulose nanofibrils (CCNF), as stabilizers, and a mixture of food-grade nonionic surfactants to avoid precipitatio
Journal of the Brazilian Chemical Society. Publicado em: 2023
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8. Technological properties of a self-bloating clay and expanded-clay aggregate for the production of lightweight concrete
Abstract The global interest in an increasingly sustainable economy, with a reduction in the consumption of raw materials and energy, can be supported by the growth in the use of lightweight concrete (LC) produced with expanded-clay aggregates (EA). The main qualities of natural self-bloating clay for the production of EA were studied, analyzing the paramete
Cerâmica. Publicado em: 2023
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9. The influence of compositional variability of dimension stone residues on the properties of rustic porous ceramic tiles
Abstract This study analyzed how the compositional variability of dimension stone residues influences the characteristics of rustic porous ceramic tiles. The specimens were prepared by adding 20 wt% of dimension stone residue to the clay and sintered at 1000 °C for 1 h. The testing assays performed were physical properties and structural analysis through sc
Cerâmica. Publicado em: 2023
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10. Use of hydrogen peroxide in acclimatization of melon to salinity of irrigation water
RESUMO No semiárido do Nordeste brasileiro as condições edafoclimáticas podem favorecer riscos de salinização do solo, principalmente quando se utiliza água de má qualidade para irrigação. Nesse contexto, técnicas que possibilitem melhorias nos rendimentos da cultura do melão em condições adversas, como a salinidade, são, portanto, de grande r
Revista Brasileira de Engenharia Agrícola e Ambiental. Publicado em: 2023
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11. Sensitivity analysis of the AquaCrop model for wheat crop in Campos Gerais region, Paraná
ABSTRACT The use of crop modeling can be useful to understand the interactions between the soil-plant-atmosphere system. The objective of this study was to evaluate sensitivity analysis of the AquaCrop model parameters for wheat crop in the Campos Gerais Region. The varietie tested was TBIO Sinuelo in Castro, Ponta Grossa and Itaberá cities. The analyzed pa
Revista Ceres. Publicado em: 2023
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12. Salicylic acid and proline modulate water stress tolerance in a traditional variety of cowpeas
RESUMO Aplicações exógenas de compostos químicos estimulam modificações no metabolismo vegetal e conferem tolerância a diferentes estresses ambientais, incluindo o déficit hídrico. Esta pesquisa teve como objetivo avaliar os efeitos do uso de ácido salicílico (AS) e prolina na redução do estresse hídrico em uma variedade tradicional de feijão-
Revista Brasileira de Engenharia Agrícola e Ambiental. Publicado em: 2023