Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Bernd Hölscher"'
Publikováno v:
Helvetica Chimica Acta.
Publikováno v:
Chemistry & Biodiversity. 11:1639-1650
The synthesis of new odorant molecules is still a challenging task for the fragrance chemist, because now as ever it is difficult to predict the odor properties of small organic molecules. Therefore, certain tools, such as, e.g., lead-structure optim
Publikováno v:
Chemistry & Biodiversity. 5:1011-1022
In creating new aroma molecules, the fragrance chemist can make use of several tools: receptor or combinatorial research as well as lead structure optimization of existing chemicals or substances from the natural pool. Sometimes, it is also possible
Autor:
Heinz-Jürgen Bertram, Detlef Stöckigt, Berthold Weber, Claus Oliver Schmidt, Bernd Hölscher, Birgit Kohlenberg, Beate Hartmann
Publikováno v:
Journal of Essential Oil Research. 18:607-610
An oil of the piperitone type of Eucalyptus dives produced from trees cultivated in South Africa was analyzed by GC and GC/MS. Seventy-three constituents were characterized with piperitone ranging from 29.2% to 64.9%, depending on whether the oil was
Publikováno v:
Allergo Journal. 13:527-530
Background Worm infestations may play a role in preventing allergic diseases. There is a lack of epidemiologic information from western countries on the association between worm infestation and atopic eczema (AE). The aim of this study was to investi
Autor:
Norbert A. Braun, Berthold Weber, Bernd Hölscher, Manfred Meier, Claus‐Hermann Kappey, Wilhelm Pickenhagen
Publikováno v:
Helvetica Chimica Acta. 87:1666-1680
The 3-methyl-4-(tricyclo[5.2.1.02,6]dec-4-en-8-ylidene)butan-2-ols (=Fleursandol®; rac-10), a new class of sandalwood odorants, were synthesized in their enantiomerically pure forms by use of tricyclo[5.2.1.02,6]dec-4-en-8-ones 17 and ent-17 and (te
Autor:
Günter Merkel, Christine Schulz, Margarete Seiwert, Cara L. Carty, Bernd Hölscher, Joachim Heinrich
Publikováno v:
Journal of Exposure Science & Environmental Epidemiology. 15:74-80
In 1998, the German Environmental Survey (GerES III) recruited approximately 5000 adults between the ages of 18 and 69 years. The study population for these analyses consisted of 1580 smokers (34% of the total population) and 3126 nonsmokers. Nicotin
Publikováno v:
Helvetica Chimica Acta. 86:2698-2708
The odorous trace constituent iso-β-bisabolol (4) was isolated from East Indian and Western Australian sandalwood oil and synthesized by using the (E/Z)-triene 12 (iso-γ-bisabolene) as a key intermediate. Only one of four stereoisomeric forms of 4,
Publikováno v:
Pediatric Allergy and Immunology. 13:334-341
Currently, there is ongoing discussion regarding potential protective effects of exposure to pets during early childhood on the development of atopic disorders in children later in life. We used data from three consecutive cross-sectional surveys to
Autor:
Mike Pitz, Wolfgang G. Kreyling, H.-E. Wichmann, Bernd Hölscher, Josef Cyrys, Joachim Heinrich
Publikováno v:
Atmospheric Environment. 35:4357-4366
Size distribution of particle number concentrations in the geometric equivalent diameter range 0.01–2.5 μm were determined in three communities, Zerbst, Bitterfeld and Hettstedt of the state of Sachsen-Anhalt in Eastern Germany, in the first half