نتایج جستجو برای: bht

تعداد نتایج: 1381  

Journal: :Nano Energy 2023

Owing to the high electron delocalization in 2D ultrathin regions derived from π-d conjugations, electrically conductive metal-organic frameworks (MOFs) are widely used electronic applications but mostly for rigid devices. The interaction mechanism between MOFs and flexible substrates remains unclear, which cannot meet increasing demand next-generation wearable electronics. Herein, copper-benze...

Journal: :CoRR 2015
Hadi Zayyani Mehdi Korki Farrokh Marvasti

This letter proposes a low-computational Bayesian algorithm for noisy sparse recovery in the context of one bit compressed sensing with sensing matrix perturbation. The proposed algorithm which is called BHT-MLE comprises a sparse support detector and an amplitude estimator. The support detector utilizes Bayesian hypothesis test, while the amplitude estimator uses an ML estimator which is obtai...

2006
B. Gopalakrishnan Adesh A. Bawane Kusum S. Akki V.I. Hukkeri

To evaluate the free radical scavenging activity of flavonoids containing extracts of Stevia leaf. Alcoholic. Successive butanolic and alcoholic extracts of leaves were examined for free radical scavenging activity using BHT (tert-butylhydroxytolune) as a positive control by in vitro models. Successive alcoholic extract showed remarkable free radical scavenging activity. The IC(50) was found to...

Journal: :Chemical & pharmaceutical bulletin 2008
Phan Van Kiem Mai Dinh Tri Le Vo Dinh Tuong Nguyen Huu Tung Nguyen Ngoc Hanh Tran Hong Quang Nguyen Xuan Cuong Chau Van Minh Eun-Mi Choi Young Ho Kim

Two new phenyl glycosides, mangliesides A and B (1, 2), a new ionol glycoside, manglieside C (3), two new lignan glycosides, mangliesides D and E (4, 5), were isolated from the leaves of Manglietia phuthoensis, along with two known lignans, 3-methoxymagnolol (6) and obovatol (7). Their structures were established by means of 1D and 2D NMR, electrospray ionization (ESI)-MS and HR-ESI-MS experime...

Journal: :Bioscience, biotechnology, and biochemistry 2004
Sun Park Yuuko Takano Hideyuki Matsuura Teruhiko Yoshihara

A maize plant (Zea mays) planted in a test tube was found to inhibit the growth of the soil-borne plant pathogen, Fusarium oxysporum f. sp. melongenae. The antifungal compounds, 6-methoxybenzoxazolinone and 6,7-dimethoxybenzoxazolinone, were isolated from an ethanol extract of Zea mays roots, and (6R)-7,8-dihydro-3-oxo-alpha-ionone and (6R,9R)-7,8-dihydro-3-oxo-alpha-ionol were isolated from th...

Journal: :Environmental Health Perspectives 1986
N Nakatani R Inatani H Ohta A Nishioka

In a structure analysis of the compounds of the genus Piper (Family Piperaceae), we identified five phenolic amides from Piper nigrum, seven compounds from P. retrofractum, and two compounds from P. baccatum. All the phenolic amides possess significant antioxidant activities that are more effective than the naturally occurring antioxidant, alpha-tocopherol. One amide, feruperine, has antioxidan...

Journal: :Infection and immunity 1974
R M Vaught A S Bleiweis

Cold 10% trichloroacetic acid was used to extract antigens from purified cell walls of Streptococcus mutans BHT. Column chromatography on Biogel P-100 resolved two serologically reactive fractions (B and C). These fractions were ascertained to be relatively pure by recycling on Biogel P-100, Ouchterlony double-diffusion analysis, and immunoelectrophoresis. Fractions B and C demonstrated bands o...

Journal: :Journal of High Energy Physics 2011

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