Výsledky vyhledávání - "Herbert Stark"

Barrier effects of mountain ranges for broad-front bird migration

Autor: Dieter Peter, Thomas Steuri, Matthias Schmidt, Herbert Stark, Janine Aschwanden, Gábor Wichmann, Felix Liechti

Publikováno v: Journal of Ornithology. 161:59-71

The influence of mountain ranges on broad-front bird migration has been investigated for several decades. However, almost all the studies have focused on flight behaviour, and have rarely considered the quantitative effect of mountain ranges as a bar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::592385c71f2366305f299dad0ad1915a
https://doi.org/10.1007/s10336-019-01704-4

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Levant sparrowhawk Accipiter brevipes

Autor: Herbert Stark, Felix Liechti

Publikováno v: Migration Strategies of Birds of Prey in Western Palearctic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9dccdca171b93afbbe09bf82def15f7a
https://doi.org/10.1201/9781351023627-13

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Bird collisions at wind turbines in a mountainous area related to bird movement intensities measured by radar

Autor: Dieter Peter, Janine Aschwanden, Felix Liechti, Herbert Stark, Thomas Steuri, Baptiste Schmid

Publikováno v: Biological Conservation. 220:228-236

Bird collisions at wind turbines are perceived to be an important conservation issue. To determine mitigation actions such as temporary shutdown of wind turbines when bird movement intensities are high, knowledge of the relationship between the numbe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::821950725c19af2aa3ac70bdbb41917d
https://doi.org/10.1016/j.biocon.2018.01.005

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Light loggers reveal weather-driven changes in the daily activity patterns of arboreal and semifossorial rodents

Autor: C. Loren Buck, Brian M. Barnes, André R. Breton, Amanda D. Kelley, Cory T. Williams, Andrew G. McAdam, Stan Boutin, Herbert Stark, Kathryn Wilsterman, Murray M. Humphries

Publikováno v: Journal of Mammalogy. 95:1230-1239

Measuring daily and seasonal patterns of activity is useful for understanding the ecological and evolutionary drivers of behavior. We used collar-mounted light loggers to examine how nest attendance in arboreal squirrels and aboveground activity in s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::72ffdcc3644fa0d14d5588d82ea3b83d
https://doi.org/10.1644/14-mamm-a-062

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Do Levant Sparrowhawks Accipiter brevipes also migrate at night?

Autor: Felix Liechti, Herbert Stark

Publikováno v: Ibis. 135:233-236

Flight paths of visually identified Levant Sparrowhawks Accipiter brevipes on autumn migration were analysed with a tracking radar in the Arava Valley, Israel. This time of the year there are no significant numbers of other species with a similar win

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4f166f11234c9d60b581f9f8d9d48eab
https://doi.org/10.1111/j.1474-919x.1993.tb02839.x

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Stereoselektive Synthese enantiomerenreiner Naturstoffe - Beispiel Östron

Autor: Gerhard Quinkert, Herbert Stark

Publikováno v: Angewandte Chemie. 95:651-669

Naturstoffe werden seit Jahrmilliarden in Tieren, Pflanzen oder Mikroorganismen synthetisiert. Sie treten in der Regel enantiomerenrein auf. Ihre Chiralitat kommt ihrer Verwendung als Nahrungsmittel oder als biologischer Wirkstoff zugute. Wo Natursto

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https://doi.org/10.1002/ange.19830950903

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Using a children's book to prepare children and parents for elective ENT surgery: results of a randomized clinical trial

Autor: Anna Maksys, Reinhard Topf, Herbert Stark, Christiane Noestlinger, Rosemarie Felder-Puig, Helmut Gadner, Angela Pfluegler

Publikováno v: International journal of pediatric otorhinolaryngology. 67(1)

Objective: We evaluated the effects of surgery preparation using a children's book on pre- and postoperative anxiety and distress in 2–10 years old children undergoing tonsillectomy and/or adenoidectomy and their mothers. Methods: Parents of the ex

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https://pubmed.ncbi.nlm.nih.gov/12560148

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Stereoselective Synthesis of Enantiomerically Pure Natural Products—Estrone as Example

Autor: Gerhard Quinkert, Herbert Stark

Publikováno v: Angewandte Chemie International Edition in English. 22:637-655

Natural products have been synthesized for billions of years in animals, plants, and microorganisms. As a rule they occur enantiomerically pure. Their chiral character corroborates their use in metabolism or as biologically active agents. Natural pro

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https://doi.org/10.1002/anie.198306373

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Total Synthesis of the Azoxy Antibiotic Jietacin A

Autor: Oswald Ort, Wolfgang Giencke, Herbert Stark

Publikováno v: Liebigs Annalen der Chemie. 1989:671-676

The total synthesis of the azoxy antibiotic jietacin A (1) has been accomplished starting from cyclooctanone via a protected 14-methyl-8-oxopentadecylamine. Totalsynthese des Azoxy-Antibiotikums Jietacin A Die Totalsynthese des Azoxy-Antibiotikums Ji

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https://doi.org/10.1002/jlac.198919890211

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