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Ryzhov V Bundy JL Fenselau C Taranenko N Doroshenko V Prasad CR 《Rapid communications in mass spectrometry : RCM》2000,14(18):1701-1706
The performance of infrared (2.94 microm) and ultraviolet (337 nm) lasers were compared for analysis of purified spores of B. subtilis, B. cereus and B. globigii on a four-inch end-cap reflectron time-of-flight instrument. Infrared matrix-assisted laser desorption/ionization (IR-MALDI) mass spectra of these microorganisms displayed a larger number of biomarker peaks above m/z 4000, compared with UV-MALDI. Biomarker peaks were observed at higher m/z values with the IR laser. 相似文献
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Background
Growth hormone (GH) plays an incompletely understood role in the development of the central nervous system (CNS). In this study, we use transgenic mice expressing a growth hormone antagonist (GHA) to explore the role of GH in regulating postnatal brain, spinal cord and body growth into adulthood. The GHA transgene encodes a protein that inhibits the binding of GH to its receptor, specifically antagonizing the trophic effects of endogenous GH. 相似文献3.
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L. C. Pan und I. Taranenko 《Fresenius' Journal of Analytical Chemistry》1937,109(7-8):299-300
Ohne Zusammenfassung 相似文献
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A.A. Taranenko 《Discrete Mathematics》2018,341(2):405-420
An -ary quasigroup of order is an -ary operation over a set of cardinality such that the Cayley table of the operation is an -dimensional latin hypercube of order . A transversal in a quasigroup (or in the corresponding latin hypercube) is a collection of -tuples from the Cayley table of , each pair of tuples differing at each position. The problem of transversals in latin hypercubes was posed by Wanless in 2011.An -ary quasigroup is called reducible if it can be obtained as a composition of two quasigroups whose arity is at least 2, and it is completely reducible if it can be decomposed into binary quasigroups.In this paper we investigate transversals in reducible quasigroups and in quasigroups of order 4. We find a lower bound on the number of transversals for a vast class of completely reducible quasigroups. Next we prove that, except for the iterated group of even arity, every -ary quasigroup of order 4 has a transversal. Also we obtain a lower bound on the number of transversals in quasigroups of order 4 and odd arity and count transversals in the iterated group of odd arity and in the iterated group All results of this paper can be regarded as those concerning latin hypercubes. 相似文献