نتایج جستجو برای: tba value

تعداد نتایج: 735573  

1999
Kazumitsu Sakai Zengo Tsuboi

The thermodynamic Bethe ansatz (TBA) and the excited state TBA equations for an integrable spin chain related to the Lie superalgebra osp(1|2) are proposed by the quantum transfer matrix (QTM) method. We introduce the fusion hierarchy of the QTM and derive the functional relations among them (T -system) and their certain combinations (Y -system). Their analytical property leads to the non-linea...

Journal: :Clinical chemistry 1988
J A Knight R K Pieper L McClellan

The thiobarbituric acid (TBA) reaction, quantified by colorimetry or fluorimetry, is the method most widely used for studying lipid peroxidation in both laboratory animals and in humans with disorders. However, concerns regarding its analytical specificity have often been expressed, because TBA reacts with a wide variety of chemical species to produce a pink to red color. In this study, we reac...

2005
John T. Wilson Cherri Adair Philip M. Kaiser Ravi Kolhatkar

To manage risk or to implement natural attenuation as a remedy, regulatory agencies must understand the processes that attenuate methyl-tert-butyl ether (MTBE) in ground water. Most case studies and laboratory studies in the literature indicate that natural biodegradation is not important; however, recent reports indicate that natural biodegradation of MTBE plays an important role under certain...

2002
Marie A. Sedran Amy Pruden Gregory J. Wilson Makram T. Suidan Albert D. Venosa

Methyl tert-butyl ether ~MTBE! contamination in groundwater often coexists with benzene, toluene, ethylbenzene, and xylene ~BTEX! near the source of the plume. Tertiary butyl alcohol ~TBA! is a prevalent intermediate of MTBE degradation. Therefore, there is a significant potential for interference of MTBE and TBA degradation by the presence of BTEX whether treatment is in situ or ex situ. In th...

Journal: :Journal of contaminant hydrology 2011
Ehsan Rasa Steven W Chapman Barbara A Bekins Graham E Fogg Kate M Scow Douglas M Mackay

A methyl tert-butyl ether (MTBE) / tert-butyl alcohol (TBA) plume originating from a gasoline spill in late 1994 at Vandenberg Air Force Base (VAFB) persisted for over 15 years within 200 feet of the original spill source. The plume persisted until 2010 despite excavation of the tanks and piping within months after the spill and excavations of additional contaminated sediments from the source a...

2003
Lucia Mosiello Cristina Laconi Maddalena Del Gallo Claudia Ercole Aldo Lepidi

In the present paper a new potentiometric biosensor for terbuthylazine (TBA, a herbicide widely utilized in agriculture) suitable for this determination in water samples is shown. As previously described, monoclonal antibody (mAb) showing high specificity for the analyte was utilized as biological element to perform the biosensor assay. A light addressable potentiometric sensor (LAPS), measurin...

Journal: :Journal of agricultural and food chemistry 2010
Bartolomeu W S Souza Miguel A Cerqueira Héctor A Ruiz Joana T Martins Alicia Casariego José A Teixeira António A Vicente

This study aimed at determining the effect of chitosan coating on shelf life extension of salmon ( Salmo salar ) fillets. The success of edible coatings depends highly on their effective wetting capacity of the surfaces on which they are applied. In this context in a first stage the surface properties of salmon fillets and the wetting capacity of the coatings on fish were evaluated. In terms of...

2017
Masanori MURAKOSHI Rie IKADA

In order to confirm the relationship between sex hormone administration and glutathione-peroxidase (GSH-PO) in the rat ventral prostate, the levels of GSH-PO mRNA, GSH-PO activitM and Iipid peroxide (TBA) value in the ventral prostate were investigated. Male Cij:CD(SD)IGS rats were divided into six experimental groups. Group 1 consisted o'f intact controls. In group 2, rats were sacrificed two ...

2015
Ki Moon Park Kyung Min Kwon Seung Ho Lee

Since mushrooms have many bioactive components, they have been used as components in folk medicine. Because mycelium has an advantage when it comes to large-scale production, this study aimed to evaluate the antioxidant properties and anti-tyrosinase activity from 55 mycelia in culture media. Relatively high 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging capacity was detected from the ethanol ...

2007
AQUILINO SANCHEZ

The Task-Based Approach (TBA) has gained popularity in the field of language teaching since the last decade of the 20fh Century and significant scholars have joined the discussion and increased the amount of analytical studies on the issue. Nevertheless experimental research is poor, and the tendency of some of the scholars is nowadays shifting towards a more tempered and moderate stand on thei...

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