نتایج جستجو برای: acetic acid solution 4000 ppm or hydrogen peroxide 2000 ppm could be used in general

تعداد نتایج: 17643127  

Journal: :Current Trends in Natural Sciences 2022

Elderberry species (Sambucus spp.) grows mostly in wild form the northern hemisphere. It is often used for landscaping riverbanks, as a windbreak, but also human nutrition and medicinal purposes. This plant especially industrial field to obtain essence. In this study, effects of some applications on rooting success elder wood cuttings were investigated. For purpose, addition 0, 2000, 4000 ppm I...

Journal: :Acta biochimica Polonica 2009
Aleksandra Lisowska Jerzy Wójtowicz Jarosław Walkowiak

INTRODUCTION Hydrogen breath test (BT) is commonly used as a diagnostic tool for the detection of small intestine bacterial overgrowth (SIBO). It was reported that colonic methane production is far more frequent in cystic fibrosis (CF) patients than in other subjects. Therefore, measuring exclusively hydrogen in the diagnostic breath test for diagnosing SIBO might be of limited value. We aimed ...

2000
L. Kung J. P. Bracht J. Y. Tavares

We evaluated the effect of several compounds on their ability to reduce the production of sul®de in in vitro ruminal fermentations, when sulfur content of the diet was 1% (dry matter basis). Excess sulfur increased (p<0.05) ruminal sul®de production, but had no effects on VFA production. The effect of 1, 10 and 25 ppm ( ̄uid basis) of 9,10 anthraquinone (AQ) and molybdenum in high sulfur diets w...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1999
J Klein-Seetharaman E V Getmanova M C Loewen P J Reeves H G Khorana

We report high resolution solution (19)F NMR spectra of fluorine-labeled rhodopsin mutants in detergent micelles. Single cysteine substitution mutants in the cytoplasmic face of rhodopsin were labeled by attachment of the trifluoroethylthio (TET), CF(3)-CH(2)-S, group through a disulfide linkage. TET-labeled cysteine mutants at amino acid positions 67, 140, 245, 248, 311, and 316 in rhodopsin w...

Journal: :British journal of industrial medicine 1993
R Kishi I Harabuchi T Ikeda Y Katakura H Miyake

This study was designed to clarify the nature of effects of trichloroethylene (TCE) on the central nervous system, and to determine the critical concentrations in blood associated with specific behavioural changes. This was achieved by a follow up of the whole time course of TCE intoxication during and after exposure. The effects of a single four hour exposure to TCE on signalled bar press shoc...

Journal: :Frontiers in dental medicine 2023

Introduction Fluoride plays a major role in inhibiting enamel dissolution and promoting fluorapatite formation. Porous hydroxyapatite (HAP) discs can be used as an analogue artificial demineralisation/remineralisation studies. Method The aim of the study was to monitor fluoride-mineral phases formed on HAP surfaces function fluoride concentration ([F − ]) under demineralising conditions, using ...

ژورنال: علوم آب و خاک 2001
شهیدی, فخری , صادقی ماهونک, علیرضا ,

The antifungal effect of sodium diacetate on inhibiting the growth of some bread spoiling molds was examined both in culture media and in flat bread “In situ”. In the first step, the antifungal effect of different concentrations of sodium diacetate: 0, 1000, 2000, 3000, 4000, and 5000 ppm were examined against Aspergillus sp., Aspergillus niger, Rhizopus sp., and Penicillium sp. The results ind...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده ادبیات و علوم انسانی 1387

abstract the present study is concerned with the syntactic deviation in hafezs poetry. poems are known to be accompanied with various linguistic deviations. these deviations may be phonological, morphological and/or syntactic. the relatively high frequency of the cases of the syntactic deviation in hafezs poems makes this rhetorical feature as a main characteristic of his poetry. this thesis, ...

Hydrogen peroxide as an oxidant agent was used for desulfurization of a petroleum hydrocarbon fraction (C10-C22) with boiling range of 175-375 ℃, (light fuel oil) in the presence of acetic acid as catalyst. The oxidation was performed in an ultrasonic bath. It is found that increasing the amount of hydrogen peroxide lead to increase the oxidation rate and so desulfurizatio...

Journal: :The Journal of organic chemistry 2013
Bright U Emenike William R Carroll John D Roberts

The conformational populations of cis-1,3-cyclopentanedicarboxylic acid (1) and its mono- and dianion were established in DMSO solution by comparing the vicinal proton–proton coupling constants (3J(HH)) obtained in solution to their theoretical counterparts. Geometries used for 3J(HH) theoretical estimation (using Karplus-type equations) were obtained from optimized structures at the B3LYP/6-31...

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