Search

Your search keyword '"Sitek A"' showing total 39 results
Start Over Author "Sitek A" Publication Year Range More than 50 years ago
39 results on '"Sitek A"'

4. Production of gibberellin-like substances by fungi isolated from mycorrhizae of pine (Pinus silvestris/L.)

Author

E, Strzelczyk, J, Sitek, and S, Kowalski

Subjects
Acremonium, Basidiomycota, Biological Assay, Chromatography, Thin Layer, Plants, Gibberellins, Trees
Abstract

Gibberellin-like substances were found to be produced by fungi isolated from mycorrhizae of pine. Among the isolates studied gibberellin-like substances producers were most numerous among the Basidiomycetes forming ectotrophic mycorrhiza and among non-sporulating fungi forming no mycorrhiza. In most strains the gibberellin-like subtances were elaborated after 10--20 days of incubation. The Rf values of the gibberellin-like compounds were different in various strains, but in most of them substances showing gibberellin activity appeared on the chromatograms run with benzene, acetic acid (10:3 v/v) at Rf 0.2--0.6.

Published
1975

15. Zur Synthese von 3,10-Dioxa-diamantan

Author

Sitek, Franciszek

Subjects
Chemistry, KONDENSIERTE AROMATISCHE POLYCYCLISCHE KOHLENWASSERSTOFFE MIT MEHR ALS 3 RINGEN, CONGRESSANES (ISOCYCLIC HYDROCARBONS), CONDENSED AROMATIC POLYCYCLIC HYDROCARBONS WITH MORE THAN 3 RINGS, CONGRESSANE (ISOCYCLISCHE KOHLENWASSERSTOFFE)
Abstract

ISBN:3-260-03274-6

Published
1972
Full Text
View/download PDF

31. ANALYTICAL AERO-TRIANGULATION (AEROTRIANGULACJA ANALITYCZNA).

Author

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH, Sitek, Zbigniew, FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH, and Sitek, Zbigniew

Abstract

Mathematical solution of analytical aero-triangulation with the aid of a matrix calculation is discussed. Coordinate system, row triangulation program, photo orientation, and methods of calculation are discussed. Examples of calculation are given. (Author), Trans. of Przeglad Geodezyjny (Poland) v37 n9 p374-377 1965.

Published
1967

36. Non-resonant background and recoil-free fraction of a BaSnO3119mSn Mössbauer source

Author

J. Sitek

Subjects
Physics, Internal conversion, Recoil, Free fraction, Mössbauer spectroscopy, Analytical chemistry, Fraction (chemistry), General Medicine, FOIL method
Abstract

The optimum thickness of Pd foil required to reduce the X-ray background emission for a thin BaSnO3119mSn Mossbauer source has been measured. The recoil-free fraction of the 119mSn nuclei in the source has also been determined.

Published
1974
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results