Free AccessImportant Keywordshttps://doi.org/10.14220/9783737013444.259SectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinkedInRedditEmail About Previous chapter Next FiguresReferencesRelatedDetails Download book coverOsnabrücker Studien zur Jüdischen und Christlichen Bibel.Volume 8 1st editionISBN: 978-3-8471-1344-7 eISBN: 978-3-7370-1344-4Hi...

This paper is concerned with a nonautonomous three species food chain model with Crowley–Martin type functional response and time delay. Using the Mawhin’s continuation theorem in theory of degree, sufficient conditions for existence of periodic solutions are obtained. Keywords—Periodic solutions; coincidence degree; food chain model; Crowley–Martin functional response.

Using the field ion microscope as a flow reactor the catalytic oxidation of hydrogen by O2 on Pt has been studied by the ToF coincidence technique. The "imaging ions" consist mainly of H30+. less H20+ and to some extent field and coverage sensitive 02+ species. The product ion spectrum qualitatively coincides with that of pure water field desorbed at 300 K. On the oxygen side of the H2/02/Pt sy...

Human-environment dynamics in past societies has been a major field of research the Mediterranean for long time, but grown significantly following increase number and quality palaeoclimate palaeoenvironmental records last two decades. Here we sketch outline this based on 1,531 author keywords from 280 peer-reviewed articles published 78 different scientific journals during 2016–2021. Sourced We...