Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Jörg Wittig"'
Publikováno v:
Arzneimittelforschung. 52:89-96
According to the European Pharmacopeia a photometric assay is used for the estimation of procyanidins in Crataegi fructus . This assay is also most commonly used for procyanidin analysis in herbal medicinal products (HMPs) containing extracts of hawt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f3121bde6cce0580acdfd5763774621
https://doi.org/10.1055/s-0031-1299862
https://doi.org/10.1055/s-0031-1299862
Autor:
Markus Veit, Jörg Wittig
Publikováno v:
Pharmazie in unserer Zeit. 34:34-40
Ein Vergleich von Gehalts-Werten – vor allem fur die Procyanidine in Weisdorn-Drogen und -Zubereitungen – ist nur dann moglich, wenn Angaben zur verwendeten Analytik vorliegen. Damit ist auch klar, dass die Dosierung und Chargenkonformitat von Zu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d0a956cc0d5bf9de54d8fdb03e50591
https://doi.org/10.1002/pauz.200400102
https://doi.org/10.1002/pauz.200400102
Autor:
G Schindler, Markus Veit, Jörg Wittig, Ulrich Patzak, Nils Krähmer, B Brinkhaus, Ingmar Glöckl, Alexander Von Nieciecki
Publikováno v:
The Journal of Clinical Pharmacology. 42:920-927
Bearberry leaves and preparations made from them are traditionally used for urinary tract infections. The urinary excretion of arbutin metabolites was examined in a randomized crossover design in 16 healthy volunteers after the application of a singl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d21d6e4ce31176fdab51e4e7b6668133
https://doi.org/10.1177/009127002401102740
https://doi.org/10.1177/009127002401102740
Publikováno v:
Journal of Chromatography B: Biomedical Sciences and Applications. 761:125-132
The paper describes the computer aided method development and validation for the determination of hydroquinone in human urine from a clinical study on renal excretion of hydroquinone metabolites and the release of free hydroquinone in the urinary tra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73486a7f4a0e5f2fc6fc12499afc31d6
https://doi.org/10.1016/s0378-4347(01)00321-8
https://doi.org/10.1016/s0378-4347(01)00321-8
Publikováno v:
Journal of chromatography. B, Biomedical sciences and applications. 753(2)
After intake of food or herbal medicinal products containing quercetin glycosides, the systemic availability of the genuine glycoside, as well as the systemic occurrence of the aglycone or conjugates of this polyphenol has been a matter of dispute. C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12db598937228c1e711ec3d7e18d44e2
https://pubmed.ncbi.nlm.nih.gov/11334336
https://pubmed.ncbi.nlm.nih.gov/11334336
Autor:
Jörg Wittig
Publikováno v:
Zeitschrift f�r Physik B Condensed Matter. 38:11-20
A phase transition occurs in Pr at a pressure of 190 kbar and 300 K as seen from a precipitous resistance drop. In the low-P phase, the temperature dependence of the electrical resistivity is highly anomalous, the following features becoming more pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44e6c9a27b1bdcb5590ebe9bd36e1420
https://doi.org/10.1007/bf01321197
https://doi.org/10.1007/bf01321197
Autor:
Jörg Wittig
Publikováno v:
Physik Journal. 33:119-122
Es gibt Anzeichen dafur, das die 4f-Elektronen mit steigender Ordnungszahl nicht, wie bisher angenommen, abrupt und ganzzahlig zuerst beim Cer auftreten, sondern auch das Lanthan scheint einen 4f-Bandanteil zu besitzen.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bb5e1a519170383f5f8f122a99bd9b5
https://doi.org/10.1002/phbl.19770330305
https://doi.org/10.1002/phbl.19770330305
Autor:
Jörg Wittig
Publikováno v:
Physical Review Letters. 46:1431-1434
The depression of the superconducting transition temperature of lanthanum due to the presence of praseodymium impurities shows a pronounced maximum as a function of pressure at approx. =230 kbar. We conclude that the 4f/sup 2/ shell of Pr delocalizes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ba8fbb9510b9850c3b87b1aa056d8e3
https://doi.org/10.1103/physrevlett.46.1431
https://doi.org/10.1103/physrevlett.46.1431
Autor:
M. B. Maple, Jörg Wittig
Publikováno v:
Solid State Communications. 9:1611-1615
The magnitude of the low temperature electrical resistivity anomaly associated with the Kondo effect in Y-1 at.% Ce decreases with pressure and disappears altogether above ∼ 80 kbar, suggesting that the Ce impurities become nonmagnetic at high pres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03634019f360c019bb748f20d3b966bb
https://doi.org/10.1016/0038-1098(71)90619-3
https://doi.org/10.1016/0038-1098(71)90619-3
Autor:
Jörg Wittig
Publikováno v:
Zeitschrift f�r Physik. 195:228-238
The dependence of the critical temperatureT c upon pressureP is measured in the pressure range up to 160 kbar. The experimental technique developed for very high pressure-low temperature experiments (preceding article) is improved by introducing a do
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6bb6577ac0d6242fa78c562e73fa554
https://doi.org/10.1007/bf01328890
https://doi.org/10.1007/bf01328890