325,514 research outputs found
Event distributions in online book auctions.
No full textCurrent quantitative evaluations in various research areas for publish/ subscribe systems use artificially created event messages to model the system workload. The assumptions made to create these workloads are rather strong and hardly ever described in detail. This does not allow for a repetition of experiments or comparative evaluations of different approaches by different researches. In this paper, we present an evaluation of the distributions of the values of attributes typically used in online auction scenarios. In particular, we focus on auctions of fiction books. We further show our approach of creating event messages by the help of the gained information. Publishing this information on how to create a typical workload for online auctions should allow for the repetition of experiments and the comparison of different evaluations
Costatoria (Costatoria?) subrotunda (BITTNER, 1901) a Smithian (Lower Triassic) marker from Tethys
No full textThe authors erect Costatoria costata var. subrotunda (Bittner) from Hungarian Lower Triassic to species level. Its subgeneric position is also discussed here. Thus, Costatoria is represented in the Werfen Formation of Dolomites area by two species: C. (Costatoria?) subrotunda (Bittner) from the upper part of Campil Member (Smithian) and C. (Costatoria) costata (Zenker) from Cencenighe and S. Lucano Members (Spathian). C. subrotunda shows a wide geographic distribution and could be considered as a helpful marker of Smithian age.-Author
JP-5 and JP-8
No full textPrepared by Sciences International, Inc. under subcontract to Research Triangle Institute under contract no. 205-93-0606. Prepared for U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry."Chemical manager(s)/author(s): John Risher, Patricia M. Bittner, Steve Rhodes.Includes bibliographical references (p. 141-163).205-93-060
Günther Bittner: Menschen verstehen. Wider die "Spinneweben dogmatischen Denkens". Würzburg: Königshausen & Neumann 2006 (192 S.) [Rezension]
No full textRezension von: Günther Bittner: Menschen verstehen. Wider die "Spinneweben dogmatischen Denkens". Würzburg: Königshausen & Neumann 2006 (192 S.; ISBN 3-8260-3096-6; 24,80 EUR)
„Wir warten auf Prof. Brandt“: Ein Kriegsgefangenenschicksal aus Kiel
No full textDer Aufsatz von Lisa Bittner begibt sich in das Kiel der unmittelbaren Nachkriegszeit. Bittner beleuchtet in ihrem Beitrag die letztlich erfolglosen Versuche verschiedener Akteurinnen und Akteure, den Kieler Juraprofessor Hans Kurt Paul Brandt aus der jugoslawischen Kriegsgefangenschaft zu befreien. Die Autorin fragt nach den Motivationen einzelner Gruppen, sich für dessen Heimkehr einzusetzen, und reflektiert das starke Engagement der Studierenden, die dieser Thematik einen eigenen Artikel im Kieler Studenten, der ersten Studierendenzeitung der CAU nach dem Zweiten Weltkrieg, widmeten. Gleichfalls legt der Beitrag professorale Netzwerke offen, die während der NS-Zeit geknüpft wurden und noch lange darüber hinaus wirkten. Diesen gelang es nicht nur, die junge Studierendenschaft für ihre Zwecke einzuspannen, sondern auch, sich gegenseitig in der jungen Bundesrepublik zahlreiche Karrierechancen zu ermöglichen.Lisa Bittner's essay takes us back to Kiel in the immediate post-war period. In her contribution, Bittner examines the in the end unsuccessful attempts by various players to free Kiel law professor Hans Kurt Paul Brandt from Yugoslavian war captivity. The author asks about the motivations of individual groups to intercede on behalf of his return home and reflects the strong commitment of the students, who dedicated an article to this topic in the Kieler Studenten, the first student newspaper of the CAU after the Second World War. The essay likewise reveals professorial networks which were tied during the Nazi era and continued to have an impact long afterwards. Those networks succeeded not only in harnessing the young student body for their own purposes, but also in providing each other with numerous career opportunities in the young Federal Republic
Pathos der Gerechtigkeit. Beobachtungen zu "The Book of Daniel" von E.L. Doctorow
No full textBittner R. Pathos der Gerechtigkeit. Beobachtungen zu "The Book of Daniel" von E.L. Doctorow. In: Bittner R, Kaul S, eds. Fiktionen der Gerechtigkeit. Interdisziplinäre Studien zu Recht und Staat. Vol 35. Baden-Baden: Nomos; 2005: 67-81
Interazioni molecolari tra l’omeostasi del ferro e del molibdeno in mitocondri di Cucumis sativus L
No full textIl molibdeno (Mo) è un micronutriente essenziale in quasi tutti gli organismi comprese le piante [1]. Il Mo, sotto forma di molibdato, è complessato con un pterina per formare il cofattore-molibdeno (Moco), che è biologicamente funzionale e che viene inserito nei cosiddetti molibdo-enzimi. Il molibdeno è quindi coinvolto in processi metabolici essenziali o importanti come assimilazione dell'azoto, sintesi dell’acido abscissico (ABA) e catabolismo delle purine. Un’alterazione del metabolismo del Mo ha effetti drammatici sulla crescita e sulla resa della pianta.
Recentemente, è stato evidenziato come il metabolismo del Mo interagisca fortemente con quello del ferro (Fe) [2]. Scopo di questo lavoro è quello di indagare la mutua regolazione dei meccanismi fondamentali alla base dell’assorbimento e della compartimentazione subcellulare di Mo e Fe in piante di cetriolo (Cucumis sativus) cresciute in diverse condizioni nutrizionali di Mo e di Fe.
Piante di cetriolo sono state allevate nelle seguenti condizioni: controllo (+Fe+Mo), carenza di Fe (-Fe+Mo), carenza di Mo (+Fe-Mo) o entrambe le carenze (-Fe-Mo).
Analisi ionomiche condotte tramite ICP-MS dei tessuti vegetali e di mitocondri purificati dalle radici hanno permesso di osservare come le carenze di Fe e di Mo determinino forti variazioni nel contenuto dei vari micro e macro elementi sia a livello dell'intera pianta che a livello subcellulare. Inoltre è stata osservata una variazione della distribuzione mitocondriale del Fe e del Mo in piante +Fe-Mo e –Fe+Mo. Attraverso un’analisi proteomica sono state valutate le alterazioni indotte dalle carenze di tali nutrienti a livello mitocondriale. Sono state identificate oltre cento proteine i cui livelli di espressione sono significativamente alterati in almeno uno dei trattementi nutrizionali utilizzati. I dati preliminari ottenuti suggeriscono una significativa intarazione tra il metabolismo del Fe e del Mo a livello mitocondriale.
[1]Bittner and Mendel (2010) Springer-Verlag, Plant Cell Monogr 17:119-143.
[2]Bittner (2014) Front. Plant Sci. 5:28
Videolabor
No full textVideolabor : Informationen zur neuen Betriebseinheit / G. Bittner, L. Mauermann. - Augsburg, 1983. - 46 S
Diisopropyl methylphosphonate
No full textPrepared by: Sciences International, Inc. under subcontract to Research Triangle Institute ; prepared for U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry under contract no. 205-93-0606.Chemical manager(s)/author(s): Malcolm Williams, Diana Wong, Patricia M. Bittner, Steve Rhodes.Includes bibliographical references: p. 121-130.205-93-060
Stefan Bittner: Learning by Dewey? John Dewey und die Deutsche Pädagogik 1900 - 2000. Bad Heilbrunn: Klinkhardt 2001 (260 S.) [Rezension]
No full textRezension von: Stefan Bittner: Learning by Dewey? John Dewey und die Deutsche Pädagogik 1900 - 2000. Bad Heilbrunn: Klinkhardt 2001 (260 S.; ISBN 3-7815-1118-9)
- …
