Results 31 to 40 of about 32,623 (246)

Insecticidal action of synthetic girgensohnine analogues and essential oils on Rhodnius prolixus (Hemiptera: Reduviidae)

open access: yesBiomédica: revista del Instituto Nacional de Salud, 2017
Introduction: The alkaloid girgensohnine has been used as a natural model in the synthesis of new alkaloid-like alpha-aminonitriles with insecticidal effect against disease vectors.
Juliana Cuadros   +3 more
doaj   +1 more source

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

open access: yesAdvanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich   +6 more
wiley   +1 more source

Volatile aroma compounds of passion fruit seed Oils: HS-GC-IMS analysis and interpretation

open access: yesFood Chemistry: X
The physicochemical properties, fatty acid composition and volatile aroma compounds of cold-pressed passion fruit seed oils were analyzed. The oils were rich in linoleic acid, oleic acid and volatile compounds. A total of 108 volatile compounds including
Lili Zheng   +6 more
doaj   +1 more source

Chemical composition, antimicrobial and antifungal activity of Lippia Thymoide essential oil in oral pathogens

open access: yesBrazilian Journal of Oral Sciences, 2021
Aim: This study evaluated the chemical composition of Lippia thymoides (Lt) essential oil and its antimicrobial activity against fungal strains of Candida albicans (Ca) and Gram-negative bacteria Prevotella intermedia (Pi) and Fusobacterium nucleatum (Fn)
Tabata Resque Beckmann Carvalho   +12 more
doaj   +1 more source

Volatility persistence in crude oil markets [PDF]

open access: yesEnergy Policy, 2014
Financial market participants and policy-makers can benefit from a better understanding of how shocks can affect volatility over time. This study assesses the impact of structural changes and outliers on volatility persistence of three crude oil markets - Brent, West Texas Intermediate (WTI) and Organization of Petroleum Exporting Countries (OPEC ...
Charles, Amélie, Darné, Olivier
openaire   +4 more sources

Chemoselective Sequential Polymerization: An Approach Toward Mixed Plastic Waste Recycling

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by biological protein metabolism, this study demonstrates the closed‐loop recycling of mixed synthetic polymers via ring‐closing depolymerization followed by a chemoselective sequential polymerizations process. The approach recovers pure polymers from mixed feedstocks, even in multilayer formats, highlighting a promising strategy to overcome a
Gadi Slor   +5 more
wiley   +1 more source

Anti-borreliae efficacy of selected organic oils and fatty acids

open access: yesBMC Complementary and Alternative Medicine, 2019
Background Borrelia sp. is a causative pathogen of Lyme disease which has become a worldwide health concern. Non-toxic approaches especially directed toward latent persistent forms of this pathogen are desired.
Anna Goc   +2 more
doaj   +1 more source

Chemotaxonomic study of Citrus, Poncirus and Fortunella genotypes based on peel oil volatile compounds--deciphering the genetic origin of Mangshanyegan (Citrus nobilis Lauriro). [PDF]

open access: yesPLoS ONE, 2013
Volatile profiles yielded from gas chromatography-mass spectrometry (GC-MS) analysis provide abundant information not only for metabolism-related research, but also for chemotaxonomy.
Cuihua Liu   +7 more
doaj   +1 more source

Allelopathic Effects of Amomum villosum Lour. Volatiles from Different Organs on Selected Plant Species and Soil Microbiota

open access: yesPlants, 2022
Amomum villosum Lour. is a perennial herb of the Zingiberaceae family, which is widely distributed in Xishuangbanna, Yunnan Province in Southwest China.
Xiang Zuo   +7 more
doaj   +1 more source

Managing and Harnessing Volatile Oil Windfalls [PDF]

open access: yesIMF Economic Review, 2013
Three funds are necessary to manage an oil windfall: intergenerational, liquidity, and investment funds. The optimal liquidity fund is bigger if the windfall lasts longer and oil price volatility, prudence, and the GDP share of oil rents are high and productivity growth is low. The paper applies the authors' theory to the windfalls of Norway, Iraq, and
Ton S van den Bremer   +1 more
openaire   +5 more sources

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