Results 51 to 60 of about 125,267 (342)

Response of Sitophilus granarius L. to fumigant toxicity of some plant volatile oils

open access: yesJournal of Radiation Research and Applied Sciences, 2016
One-week-old adults of Sitophilus granarius (L.) reared on wheat were subjected to pure plant volatile oils of Thuja, Eucalyptus and Peppermint. Volatile oil of Thuja was extracted from unripe fruits of Thuja orientalis plant by water distillation.
Ali F. Hamza   +4 more
doaj   +1 more source

Effects of Extraction Methods on Volatile Oil Profiles of Cinnamomi ramulusZingiberis rhizoma recens Couplet Medicines

open access: yesSeparations
Cinnamomi ramulus (CR, Guizhi in Chinese) and Zingiberis rhizoma recens (ZRR, Shengjiang in Chinese) are couplet medicines (drug pairs or drug combinations) in traditional Chinese medicine prescriptions.
Xiaodong Xin   +6 more
doaj   +1 more source

Comparison of Volatile Oil between the Ligusticum sinese Oliv. and Ligusticum jeholense Nakai et Kitag. Based on GC-MS and Chemical Pattern Recognition Analysis

open access: yesMolecules, 2022
Ligustici Rhizoma et Radix (LReR) is the dried rhizomes and roots of Ligusticum sinese Oliv. (LS) or Ligusticum jeholense Nakai et Kitag. (LJ). However, in the market, LS and LJ are frequently confused with each other.
Shengmao Li   +4 more
doaj   +1 more source

High potency of melaleuca alternifolia essential oil against multi-drug resistant gram-negative bacteria and methicillin-resistant staphylococcus aureus [PDF]

open access: yes, 2018
Purpose: Herein, an extended investigation of Tea tree oil (TTO) against a number of multi-drug resistant (MDR) microorganisms in liquid and vapor phases is reported.
Božović, Mijat   +7 more
core   +1 more source

Volatility of Oil Prices

open access: yesIMF Working Papers, 1996
This paper examines the behavior of crude oil prices since 1980, and in particular the volatility of these prices. The empirical analysis covers “spot” prices for one of the key internationally traded crudes, namely Dated Brent Blend. A GARCH (generalized autoregressive conditional heteroscedastic) model, which allows the conditional variance to be ...
openaire   +5 more sources

Volatility forecasting for crude oil futures [PDF]

open access: yesApplied Economics Letters, 2010
This paper studies the forecasting properties of linear GARCH models for closing-day futures prices on crude oil, first position, traded in the New York Mercantile Exchange from January 1995 to November 2005. In order to account for fat tails in the empirical distribution of the series, we compare models based on the normal, Student’s t and ...
MARZO, MASSIMILIANO, ZAGAGLIA, PAOLO
openaire   +5 more sources

Screening of the Volatile Composition of Moroccan Olive Oils by Using SPME/GC-MS-FID over a Two-Year Period: A Pedoclimatic Discrimination

open access: yesHorticulturae, 2022
The volatile profile of an olive oil is a crucial attribute indicating its sensory quality. Hence, to elucidate the impact of geographical origin (including edaphoclimatic conditions) and the crop season on the volatile composition of monovarietal ...
Touria Lechhab   +5 more
doaj   +1 more source

Preliminary Tests Regarding Fumigant Effect of Volatile Oils Obtained from Medicinal Plants

open access: yesBulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Animal Science and Biotechnologies, 2019
The objective of this work was testing 4 volatile oils obtained from new varieties of medicinal plants (yellow basil; red basil; marigold; hyssop), over Beauveria brongniartii (BbgMm1a/09) entomopathogenic fungi and Sitophilus granarius, deposit insect ...
Cătălina STAN (TUDORA)   +4 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

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

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