Results 71 to 80 of about 108,024 (198)
Caracterização química do solo e da matéria orgânica na região da Serra do Sudeste sob campo natural no Estado do Rio Grande do Sul. [PDF]
, 2019 bitstream/item/30584/1/boletim-114 ...
BORBA, M. F. S. +5 more
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Sustainable Food Proteins, Volume 4, Issue 2, June 2026.Graphical abstract illustrating the development of quinoa protein (QP) nanocarriers for the encapsulation of resveratrol (RSV) and tocopherol (TOC). ABSTRACT The objective of this work was to generate and characterize complexes of quinoa proteins (QP) with either resveratrol (RSV) or tocopherol (TOC) whose dimensions fell into the nanoscale.
Alejandra J. Rubinstein +3 more
wiley +1 more source
Laboratories based on internet : comparative analysis of current experiences and development of a virtual laboratory [PDF]
, 2006 This paper introduces the concept, advantages and the development methodology of the virtual laboratories. It will be presented examples of usage of the virtual laboratories in an educational context as well as the conclusions of the comparative ...
Bottentuit Junior, João Batista +1 more
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Viabilidade do emprego de ácido fluorídrico 10% para a remoção de íons paramagnéticos em amostras de solos e suas respectivas frações físicas [PDF]
, 2010 A utilização de efluentes de esgoto tratado na irrigação, ao invés de realizar a disposição deste subproduto nos cursos d'água tem sido uma alternativa antiga, popular e atrativa, com triplo propósito: tratamento complementar do efluente, fonte de água e
MARTIN-NETO, Ladislau +4 more
core +1 more source
Exploring 6‐Hydroxy‐3‐Aryl/Heteroarylcoumarins as Promising Candidates Against Trypanosoma cruzi
ChemMedChem, Volume 21, Issue 9, 14 May 2026.New therapies are urgently needed for Chagas disease, and screening of 6‐hydroxy‐3‐aryl/heteroarylcoumarin derivatives identified highly selective compounds with potent activity against T. cruzi. In particular, derivative 1f showed submicromolar trypomastigote potency, dual‐stage activity, and inhibition of amastigote‐to‐trypomastigote differentiation,
C. N. Pereira +7 more
wiley +1 more source
Antimicrobial and Antioxidant Activities of the Essential Oil of Resin of
Natural Product Communications, 2006 The essential oil obtained by hydrodistillation from the fresh resin of Protium heptaphyllum was analyzed by GC/MS. The main constituents were: α-pinene (10.5%), α-phellandrene (16.7%), limonene (16.9%), and terpinolene (28.5%).
P. N. Bandeira +7 more
doaj +1 more source
Advanced Synthesis &Catalysis, Volume 368, Issue 9, 5 May 2026.Heterogeneous‐catalyzed selective and versatile hydrogenative functionalizations of phthalimides have been developed for the first time. By using a solid nanocomposite formed by [Ag/Al2O3] material in combination with [H‐BETA] zeolite as cocatalyst, a broad range of 3‐functionalized isoindolinones have been accesed in one‐pot from phthalimides, H2 and ...
Carles Lluna‐Galán +2 more
wiley +1 more source
Natural Product Communications, 2006 n-Hexane, chloroform and ethyl acetate fractions obtained from methanol extracts of the wood and roots of Esenbeckia almawillia (Rutaceae) were tested against five tumor cells lines (HL-60, CEM, B-16, HCT-8 and MCF-7).
Fátima M. Nunes +13 more
doaj +1 more source
Antibacterial and Antioxidant Activities of Ursolic Acid and Derivatives
Molecules, 2014 Ursolic acid, an important bioactive compound, was isolated from ethanol extract of aerial parts of Sambucus australis. In order to develop bioactive ursolic acid derivatives, two semi-synthetic compounds were obtained through modification at C-3.
Patrícia G.G. do Nascimento +7 more
doaj +1 more source
Manipueira: um adubo orgânico em potencial. [PDF]
, 2016 bitstream/item/63519/1/Oriental-Doc107 ...
BOTELHO, S. M. +3 more
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