Results 11 to 20 of about 3,362 (128)

The Future of Sustainable Packaging: Exploring Biodegradable Solutions Through Extrusion, Thermo-Expansion, 3D Printing and Supercritical Fluid from Agro-Industry Waste [PDF]

open access: yesFoods
Due to environmental disasters caused by the use of plastic packaging, particularly expanded polystyrene (EPS), there is an urgent need to identify sustainable alternatives.
Lacan S. Rabelo   +4 more
doaj   +2 more sources

Experiência de famílias e terapeutas com um programa de telessaúde para crianças e adolescentes com paralisia cerebral durante a pandemia de COVID-19. [PDF]

open access: yesDev Med Child Neurol
Experiências de pais de crianças com paralisia cerebral e terapeutas no programa individualizado. Resumo Objetivo Compreender as percepções das famílias e terapeutas sobre a sua participação em um programa domiciliar individualizado via telessaúde implementado para crianças e adolescentes com paralisia cerebral (PC) durante a pandemia da COVID‐19 no ...
Oliveira R   +5 more
europepmc   +2 more sources

Climate and hybridization shape stomatal trait evolution in Populus. [PDF]

open access: yesNew Phytol
Summary Stomata play a critical role in regulating plant responses to climate. Where sister species differ in stomatal traits, interspecific gene flow can influence the evolutionary trajectory of trait variation, with consequences for adaptation. Leveraging six latitudinally distributed contact zones spanning the natural hybrid zone between Populus ...
Zavala-Paez M   +4 more
europepmc   +2 more sources

Grafting of L-proline and L-phenylalanine amino acids on kaolinite through synthesis catalyzed by boric acid

open access: yesApplied Surface Science Advances, 2021
The amidation reaction catalyzed by boric acid between the amino acids proline and phenylalanine and the alkoxide 3-aminopropyltriethoxysilane was studied. Afterwards, the modified alkoxide was used to functionalize the clay mineral kaolinite. The hybrid
Denis T. de Araújo   +7 more
doaj   +1 more source

α and γ Alumina Spheres for Azo Dye (Allura Red) Removal from Aqueous Media

open access: yesAdsorption Science & Technology, 2022
Allura red or Red 40 (R40) is a dye widely used in the food, textile, and pharmaceutical industries; it is considered dangerous because it is soluble in water, and it has high toxicity and resistance to natural degradation.
Jonatan Torres-Pérez   +2 more
doaj   +1 more source

Synthesis and characterization of nickel complexes derived from Schiff-Bases

open access: yesOrbital: The Electronic Journal of Chemistry, 2012
Aromatic Schiff-Bases constitute a large class of organic compounds containing the imine group (C=N) [1-3]. 2-hydroxybenzaldehyde (salicylaldehyde) which has been frequently used for the synthesis of aromatic Schiff-Bases, it has many biological ...
Mirian Y. Matsumoto   +8 more
doaj   +1 more source

Produção de sementes macho-estéreis em arroz [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2001
A obtenção comercial de sementes da linhagem macho-estéril é uma das limitações para viabilizar a produção de híbridos de arroz (Oryza sativa L.). Este trabalho buscou estudar três proporções entre a linhagem macho-estéril (linhagem A) e a mantenedora ...
Claudio Bragantini   +2 more
doaj   +1 more source

Inserção de catalisador híbrido na síntese de beta-tiocetonas

open access: yesOrbital: The Electronic Journal of Chemistry, 2012
The Michael reaction (or Michael addition) involves the addition of a nucleophile, called Michael donor, to an electrophile (α,β-unsaturated), called Michael acceptor. Literature reports several types of nucleophiles applied in this reaction.
Mariana Pompilio Darbem   +2 more
doaj   +1 more source

Autoatención y automedicación: reflexiones y retos desde la ontología del ser social

open access: yesRevista Costarricense de Psicología, 2021
La autoatención, aunque la mayor parte del tiempo se considera como un problema de salud públi­ca, también puede ser considerada un acto de empoderamiento y contrahegemonía; sobretodo, si se toma en consideración la autonomía de los individuos para ...
Jorge Molina-Aguilar
doaj   +1 more source

Development of materials consisting of conjugated polymer doped with folic acid

open access: yesOrbital: The Electronic Journal of Chemistry, 2012
The development of new materials made from the combination between conjugated polymers and new dopants is the objective of various researches groups around the world. This work presented the synthesis and characterization of Polyaniline (PAni) doped with
Vicente Kupfer   +5 more
doaj   +1 more source

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