نتایج جستجو برای: nta

تعداد نتایج: 1284  

2013
Thomas Hanneforth Andreas Maletti Daniel Quernheim

Algorithms for (nondeterministic) finite-state tree automata (NTA) are often tested on random NTA, in which all internal transitions are equiprobable. The run-time results obtained in this manner are usually overly optimistic as most such generated random NTA are trivial in the sense that the number of states of an equivalent minimal deterministic finite-state tree automaton is extremely small....

2013
Chris Gardiner Yannick J. Ferreira Rebecca A. Dragovic Christopher W.G. Redman Ian L. Sargent

Nanoparticle tracking analysis (NTA) is a light-scattering technique that is useful for the rapid sizing and enumeration of extracellular vesicles (EVs). As a relatively new method, NTA has been criticised for a lack of standardisation. We propose the use of silica microspheres for the calibration of NTA measurements and describe in detail a protocol for the analysis of EVs by NTA which should ...

Journal: :Water research 2006
Y V Nancharaiah N Schwarzenbeck T V K Mohan S V Narasimhan P A Wilderer V P Venugopalan

Development of mixed-culture microbial granules under aerobic conditions in a sequencing batch reactor (SBR), capable of completely degrading a recalcitrant metal chelating agent is reported. In laboratory-scale reactor studies, the microbial granules degraded 2mM of free nitrilotriacetic acid (NTA) and Fe(III)-NTA completely in 14 and 40 h, respectively. Free NTA was degraded at a specific rat...

Journal: :The Journal of Experimental Medicine 1978
E S Raveché A D Steinberg L W Klassen J H Tjio

The appearance of naturally occurring thymocytotoxic autoantibodies (NTA) and spontaneously produced antibodies to single-stranded DNA (ssDNA) was studied in NZB, and DBA/2 mice and their F1 and backcross progeny. NTA production was markedly decreased in males; however, castrated males produced quantities of NTA similar to those of females. Because the amount of NTA was influenced by sex hormon...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2006
Halina Kleszczyńska Krzysztof Bielecki Janusz Sarapuk Dorota Bonarska-Kujawa Hanna Pruchnik Zenon Trela Jacek łuczyński

Potential biological properties of newly synthesized single and double alkyl chain N-oxides of tertiary amines (NTA) were studied. Individual compounds in each of the series had alkyl chains of different length. Various experiments were performed to determine a mechanism of the interaction between NTA and model and biological membranes. These were measurements of hemolytic efficiencies of NTA (...

Journal: :The Analyst 2011
Xiaojun Chen Yanbing Zu Hong Xie Aurino Muhammad Kemas Zhiqiang Gao

A simple colorimetric assay with high sensitivity, excellent selectivity and a tunable dynamic range is reported for detecting trace amounts of mercuric ion in aqueous solution based on the coordination of Hg(2+) to the gold nanoparticle (AuNP)-associated 3-nitro-1H-1,2,4-triazole (NTA). The NTA can stabilize the AuNPs against tris-induced aggregation through capping the AuNPs. In the presence ...

2012
Boris Kulik Alexander Fridman Alexander Zuenko

The paper examines the usage potential of n-tuple algebra (NTA) developed by the authors as a theoretical generalization of structures and methods applied in intelligence systems. NTA supports formalization of a wide set of logical problems (abductive and modified conclusions, modelling of graphs, semantic networks, expert rules, etc.). This article mostly describes implementation of logical in...

Journal: :Journal of bacteriology 1997
Y Xu M W Mortimer T S Fisher M L Kahn F J Brockman L Xun

Nitrilotriacetate (NTA) is an important chelating agent in detergents and has also been used extensively in processing radionuclides. In Chelatobacter heintzii ATCC 29600, biodegradation of NTA is initiated by NTA monooxygenase that oxidizes NTA to iminodiacetate and glyoxylate. The NTA monooxygenase activity requires two component proteins, component A and component B, but the function of each...

2016
Zhao Fan Guomin Jing Xianfeng Ding Xiaorong Cheng

Task-irrelevant stimulus numbers can automatically modulate concurrent temporal tasks--leading to the phenomenon of number-time association (NTA). Recent research provides converging evidence that the NTA occurs at the stage of temporal memory. Specifically, a reference memory containing encoded duration information can be modified by perceptual/concurrent digits, i.e., a perceptual/concurrent ...

Journal: :Applied and environmental microbiology 1986
M Hunter T Stephenson P W Kirk R Perry J N Lester

The biodegradation of nitrilotriacetic acid (NTA), a synthetic replacement detergent builder, in the estuarine environment was examined by using a laboratory estuarine simulation. Two interdependent microcosms were used; each of five vessels was equilibrated with a saline gradient between 1.30 and 17.17%, with the final vessel subsequently being increased to a maximum salinity of 31.6%. Each mi...

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