Results 21 to 30 of about 6,418 (179)

Root growth of tomato seedlings intensified by humic substances from peat bogs

open access: yesRevista Brasileira de Ciência do Solo, 2011
Peats are an important reserve of humified carbon in terrestrial ecosystems. The interest in the use of humic substances as plant growth promoters is continuously increasing. The objective of this study was to evaluate the bioactivity of alkaline soluble
Alexandre Christofaro Silva   +7 more
doaj   +1 more source

Óleos essenciais de manjericão e capim citronela no controle de larvas de Aedes aegypti

open access: yesRevista Verde de Agroecologia e Desenvolvimento Sustentável, 2015
O objetivo deste trabalho foi avaliar o efeito larvicida do óleo essencial do manjericão (Ocimum basilicum L.)e do capim citronela (Cymbopogon nardus L.) em larvas de Aedes aegypti.
Ronice Alves Veloso   +4 more
doaj   +1 more source

Synthesis of CaSiO3 whiskers in alkaline salt flux for biomaterials reinforcement [PDF]

open access: yes, 2012
Materials reinforcement by ceramic whiskers has been employed for a long time in a variety of industrial applications. Nevertheless, the materials by which these whiskers are commonly made of (carbide and silicon nitride) do not allow their use in ...
Bertran, C. A., Motisuke, Mariana
core   +1 more source

Avaliação da bioatividade e caracterização química de uma espécie de uso tópico: Juglans regia L. [PDF]

open access: yes, 2013
As folhas de Juglans regia L. (nogueira), são consideradas uma fonte de compostos benéficos para a saúde, sendo amplamente utilizadas na medicina tradicional.
Barros, Lillian   +5 more
core   +3 more sources

Root growth of Arabidopsis thaliana (L.) Heynh. treated with humic acids isolated from typical soils of Rio de Janeiro state, Brazil

open access: yesRevista Ceres, 2011
Humic substances isolated from soil organic matter had been used as stimulators of plant metabolism. Arabidopsis thaliana (L.) Heynh. with only five chromosomes, short cycle and size, is an important model to evaluate the physiological effects of these ...
Marihus Altoé Baldotto   +3 more
doaj   +1 more source

Effects of glucocorticoids on growth and bone mineralization [PDF]

open access: yes, 2011
OBJETIVO: Revisar os mecanismos de ações dos glicocorticoides e sua capacidade de induzir osteoporose e déficits de crescimento. FONTES DOS DADOS: A revisão bibliográfica de artigos científicos foi realizada na base de dados MEDLINE e utilizou as ...
DONATTI, Teresinha Lermen   +3 more
core   +2 more sources

Initial performance of pineapple and utilization of rock phosphate applied in combination with organic compounds to leaf axils

open access: yesRevista Ceres, 2011
Rock phosphates have low solubility in water, but good solubility in acid. The use of organic compounds together with these phosphorus sources applied to the basal leaf axils of pineapple can increase the solubility of this phosfate source and increase ...
Marihus Altoé Baldotto   +4 more
doaj   +1 more source

Humic substances isolated from residues of sugar cane industry as root growth promoter Substâncias húmicas isoladas de resíduos da indústria da cana-de-açúcar como promotoras de crescimento radicular

open access: yesScientia Agricola, 2010
Plant growth promoting substances are widely used in modern agriculture. Several products in the market are humic substances isolated from different sources. The filter cake, a residue of sugar production, is a rich and renewable source of organic matter
Jader Galba Busato   +4 more
doaj   +1 more source

On mechanical properties and bioactivity of PVDF-BCP composites

open access: yesCerâmica
A ceramic/polymer biocomposite with high potential for multifunctional practical applications in bone tissue engineering was synthesized by using a well-known piezoelectric polymer, polyvinylidene fluoride (PVDF), and a high bioactive biphasic calcium ...
L. M. Silva   +10 more
doaj   +1 more source

Fortification of Ground Roasted Coffees with Iron, Zinc, and Calcium Salts: Evaluation of Minerals Recovery in Filtered and Espresso Brews

open access: yesBeverages, 2019
Micronutrient deficiencies are of great public health and socioeconomic importance. Food fortification has been widely used as a simple low-cost resource to increase mineral intake.
Angela Soares   +6 more
doaj   +1 more source

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