Zobrazeno 1 - 10
of 208
pro vyhledávání: '"U. Matthiesen"'
Publikováno v:
Phytomedicine : international journal of phytotherapy and phytopharmacology. 2(4)
The n-hexane extract of Houttuynia cordata was shown to inhibit prostaglandin synthase in vitro. Phytochemical examination led to the identification of five fatty acids (linolenic, linoleic, oleic, palmitic and stearic), cepharanone B, phytol and sti
Autor:
G. F. Hoffmann, U. Matthiesen, D. Rating, Wolfram Meier-Augenstein, Peter Schadewaldt, Udo Wendel
Publikováno v:
Isotopes in Environmental and Health Studies. 31:261-266
Isotopic enrichment of branched-chain L-amino acids (BCAA) and branched-chain 2-oxo acids (BCOA) in standard preparations and in human plasma samples withdrawn after oral loads with 1-13C labelled BCAA were measured on a conventional GC-MS system and
Publikováno v:
Analytical Biochemistry, 229, pp. 153-161
Analytical Biochemistry, 229, 153-161
Analytical Biochemistry, 229, 2, pp. 153-161
Analytical Biochemistry, 229, 153-161
Analytical Biochemistry, 229, 2, pp. 153-161
We report on an enzymatic-chemical method for the specific preparation of L-amino acid-derived quinoxalinols suitable for the sensitive estimation of 13C- or 2H-label enrichment by gas chromatography-mass spectrometry: Amino acid fractions are isolat
Publikováno v:
Isotopenpraxis Isotopes in Environmental and Health Studies. 30:141-150
Interindividual variability of leucine catabolism was studied in eight overnight fasted healthy volunteers by means of a controlled oral L-[1-13C]leucine loading test (5 mg/kg body weight). With the exception of total CO2 expiration (CV = 5%),a consi
Autor:
P. Schadewaldt, U. Matthiesen
Publikováno v:
Isotopenpraxis Isotopes in Environmental and Health Studies. 30:219-230
A procedure is described which allows the specific and sensitive estimation of 13C- or 2H-label enrichment in branched-chain l-amino acids from physiological fluids: Amino acids are isolated from deproteinized samples by cation exchange chromatograph
Autor:
K. W. McLean, K. Strahl, G. Herrera, B. Boštjančič, D. Kamp, H. Schröder, S. Werner, D. B. MacFarlane, I. Tichomirov, A. Semenov, V. Lubimov, A. Drescher, J. C. Gabriel, R. Childers, K. Reim, Sally Seidel, H. Scheck, V. Soloshenko, W. Schmidt-Parzefall, R. S. Orr, I. V. Gorelov, R. Waldi, Sergey Semenov, J. Stiewe, C. W. Darden, T. S. Yoon, U. Volland, Rainer Mankel, T. Ruf, D. Wegener, Hermann Kolanoski, R. Davis, Anton Babaev, E. Križnič, S. Ball, Manfred Paulini, C. E. K. Charlesworth, C. Hast, J. D. Prentice, A. Rostovtsev, A. Krüger, H. Albrecht, A. W. Nilsson, H. I. Cronström, K. W. Edwards, A. Lindner, A. Nippe, A. Lange, R. Wurth, S. Khan, Robert K. Kutschke, R. Gläser, P. Križan, A. Golutvin, J. D. Swain, Stefan Schael, J. A. Parsons, H. Kapitza, V. Shevchenko, G. Schweda, A. Hölscher, Wr Frisken, P. M. Patel, Yu. Zaitsev, G. Harder, M. Reidenbach, J. Spengler, G. Kernel, V. Tchistilin, Mikhail Danilov, B. Fominykh, A. Walther, Werner Hofmann, K. R. Schubert, Holger Schulz, U. Matthiesen, B. Spaan, W. Funk, Leif J. Jönsson, M. Pleško, T. Oest, R. D. Appuhn, M. Schäfer, H. Wegener, N. Kwak, Georgios Tsipolitis, F. Sefkow, S. Weseler
Publikováno v:
Zeitschrift für Physik C: Particles and Fields. 46:15-23
We report on a high statistics study of π0 and η production in continuum events and in direct decays of the Γ(1S) and Γ(2S) resonances. The measured production rates per event are\(\left\langle {n_{\pi ^0 } } \right\rangle\)=3.22 ± 0.07 ± 0.31
Publikováno v:
Planta medica. 66(7)
An investigation of sesquiterpene lactone content in Arnica tincture (German Pharmacopoeia) after storage for three years at different temperatures (+4, +25 and +30 degrees C) was carried out by GC and GC-MS analysis. A decrease (13, 32 and 37%, resp
Publikováno v:
Planta Medica. 59:A663-A664
Autor:
V. Lubimov, T. S. Yoon, H. Schröder, J. Spengler, N. Kwak, W. Schmidt-Parzefall, H. Albrecht, R. Wurth, Leif J. Jönsson, C. W. Darden, P. C. H. Kim, W. Reinsch, B. Spaan, K. W. Edwards, A. Drescher, J. C. Yun, A. Semenov, I. Tichomirov, R. Ammar, M. Danilov, V. Shevchenko, Holger Schulz, Yu. Semenov, B.P. Padley, Douglas Gingrich, Anton Babaev, R. Heller, A. Krolzig, K. R. Schubert, Roland Waldi, K. W. McLean, V. Nagovitsin, H. Hasemann, William R. Frisken, R. Childers, E. Michel, P. Böckmann, J. A. McKenna, Y. Oku, D. B. Macfarlane, J. D. Prentice, D. Wegener, A. W. Nilsson, S. Weseler, U. Matthiesen, G. Tsipolitis, R. Davis, J. D. Swain, Robert K. Kutschke, D. Kamp, R. S. Orr, A. Golutvin, B. Gräwe, G. Harder, J. Stiewe, H. Kapitza, H. Gennow, M. Goddard, R. Gläser, V. Soloshenko, P. M. Patel, D. J. Gilkinson, Viktor Matveev, Yu. Zaitsev, H. C. J. Seywerd, U. Binder, G. Drews, V. Tchistilin, C. Fukunaga, F. Selonke, S. Kanekal, Werner Hofmann, E. Steinmann, A. Markees, A. Arefiev, K. Strahl, D. Coppage, V. Ryltsov, H. Scheck
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 275:1-48
The detector ARGUS has been designed as a universal tool to investigate final states from e + e − annihilation processes in the energy range of the ϒ resonances. ARGUS started operation in October 1982 and has since successfully taken data at the
Autor:
D. Wegener, M. Pleško, S. Kanekal, Y. Oku, M. Danilov, V. Lubimov, B. Fominykh, M. Schäfer, A. Yagil, P. M. Patel, Roland Waldi, Yu. Zaitsev, J. C. Gabriel, J. Spengler, N. Kwak, W. Schmidt-Parzefall, R. S. Orr, D. J. Gilkinson, J. Stiewe, T. Ruf, K. Strahl, P. Böckmann, H. Gennow, A.A. Andam, C. W. Darden, William R. Frisken, A. Golutvin, H. Schröder, R. Davis, A. Semenov, J. D. Swain, D. Coppage, Holger Schulz, R. Gläser, I. Tichomirov, A. Nippe, D. B. Macfarlane, V. Soloshenko, G. Tsipolitis, S. Weseler, J. A. Parsons, K. W. Edwards, H. C. J. Seywerd, H. Kapitza, Hermann Kolanoski, V. Shevchenko, C. Ehmann, H. Scheck, Leif J. Jönsson, U. Matthiesen, U. Binder, R. Ammar, B. Spaan, V. Nagovitsin, V. Matveev, Douglas Gingrich, K. W. McLean, Anton Babaev, J. A. McKenna, H. Albrecht, K. R. Schubert, J. P. Donker, R. Wurth, G. Kernel, B. Boštjančič, I. V. Gorelov, V. Tchistilin, R. Childers, Robert K. Kutschke, A. Drescher, J. C. Yun, P. C. H. Kim, V. Ryltsov, G. Harder, P. Padley, J. D. Prentice, A. W. Nilsson, T. S. Yoon, D. Kamp
Publikováno v:
Physics Letters B. 192:245-252
Using the ARGUS detector at the DORIS II storage ring we have searched in three different ways for B0- B 0 mixing in ϒ (4S) decays. One explicitly mixed event, a decay ϒ (4S)→B0B0, has been completely reconstructed. Furthermore, we observe a 4.0