Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Ernst Baumann"'
Autor:
Otto U. Bräker, Ernst Baumann
Publikováno v:
Tree-Ring Research. 62:67-73
In 1982, several rectangular openings were cut in a 100 year old sub-alpine Norway spruce forest stand to initiate regeneration at the Lusiwald site at Davos, Switzerland. The openings on the steep, north-facing slope created rapid changes to the env
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::658c9f25881f94f3f5067fabdae25c71
https://doi.org/10.3959/1536-1098-62.2.67
https://doi.org/10.3959/1536-1098-62.2.67
Autor:
Ernst Baumann, Halina Kwiecien
Publikováno v:
Journal of Heterocyclic Chemistry. 34:1587-1590
Novel 1-(3-benzofuranyl)-2-phcnylethanones 4a-d have been prepared by acetylation of 2-alkylbenzo-furans 2a-c with phenylacetyl chlorides 3a-b. The methoxy derivatives 4b-d have been demethylated to the corresponding phenols 5b-d with pyridinium hydr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f04db6ad5ab03419a7558de7d1ec1736
https://doi.org/10.1002/jhet.5570340533
https://doi.org/10.1002/jhet.5570340533
Autor:
Halina Kwiecien, Ernst Baumann
Publikováno v:
ChemInform. 29
Novel 1-(3-benzofuranyl)-2-phcnylethanones 4a-d have been prepared by acetylation of 2-alkylbenzo-furans 2a-c with phenylacetyl chlorides 3a-b. The methoxy derivatives 4b-d have been demethylated to the corresponding phenols 5b-d with pyridinium hydr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48ebd4251f04c4a9101af2ae037180fe
https://doi.org/10.1002/chin.199813099
https://doi.org/10.1002/chin.199813099
Autor:
Thomas Elsaesser, Heinz A. Staab, R. Klann, W. Frey, F. Laermer, Michael Futscher, Ernst Baumann
Publikováno v:
Chemical Physics Letters
Electron transfer in porphyrin—quinone cyclophanes is investigated by fluorescence and absorption spectroscopy with pico- and femto-second pulses. In nonpolar solvents, the S1 state of the porphyrin shows a lifetime from 300 ps up to several nanose
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1e5cead99ca538921e9fabe651ff09f
https://doi.org/10.1016/0009-2614(92)85192-d
https://doi.org/10.1016/0009-2614(92)85192-d
Autor:
Ernst Baumann, Bernd Nolte
Publikováno v:
Bankmagazin. 49:14-16
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3afed18680e263de09804b332b20601
https://doi.org/10.1007/bf03229859
https://doi.org/10.1007/bf03229859
Autor:
Ernst Baumann, Halina Kwiecien
Publikováno v:
Journal of Heterocyclic Chemistry. 35:1501-1503
1-[3-(2-Alkylbenzofuranyl)]-2-(3,5-dibromo-4-hydroxyphenyl)ethanones 5a,b and 1-[3-(2-alkylbenzofuranyl)-2-(3-bromo-4-methoxyphenyl)ethanones 3a,b were readily prepared by selective bromination of hydroxy 1a,b and methoxy 1c,d ethanones, respectively
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebaddcb7775c8a6c89470804bdd2079e
https://doi.org/10.1002/jhet.5570350647
https://doi.org/10.1002/jhet.5570350647
Autor:
Ernst Baumann
Publikováno v:
Journal of biotechnology. 38(2)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6640caa92595c45614be57fca2aad77
https://pubmed.ncbi.nlm.nih.gov/7765810
https://pubmed.ncbi.nlm.nih.gov/7765810
Publikováno v:
Chemische Berichte
In order to increase the driving force for photoinduced electron-transfer reactions of porphyrin-quinone cyclophanes, the zinc complexes 3a-e and 4a-e were prepared from the corresponding cyclophanes of the 1 and 2 series. Electron-transfer-related p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04359cb9f90f74d1ad1d2f7b1b2fe3e6
https://hdl.handle.net/21.11116/0000-0002-562B-E11858/00-001M-0000-0019-AB26-2
https://hdl.handle.net/21.11116/0000-0002-562B-E11858/00-001M-0000-0019-AB26-2
Autor:
Ernst Baumann
Publikováno v:
Gynecologic and Obstetric Investigation. 45:138-156
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15f5127f1f56b175c200e792989e5d1f
https://doi.org/10.1159/000295103
https://doi.org/10.1159/000295103
Autor:
Ernst Baumann
Publikováno v:
ZAMP Zeitschrift für angewandte Mathematik und Physik. 1:43-52
L'auteur examine une maniere particuliere de realiser des impedances dont l'angle de dephasage est prescrit en fonction de la frequence. La methode appliquee est tres semblable a celle qu'emploieCauer dans sa theorie des filtres. Apres avoir resolu u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::031b8429188178ff04c690b9b5f3f12e
https://doi.org/10.1007/bf02008888
https://doi.org/10.1007/bf02008888