TY - JOUR A1 - Lukoschat, Helga A1 - Walther, Kathrin A1 - Einicke, Bridge A1 - Schickhoff, Angela A1 - Hildebrandt, Lars A1 - Kirf, Claudia A1 - Erdmann, Christina A1 - Kunze-Seyferth, Lonny A1 - Stahl, Heiner A1 - Kröhnke, Maria A1 - Kowitz-Harms, Stephanie A1 - Harnisch, Astrid A1 - Wiese, Julia T1 - Portal alumni T2 - Das Ehemaligen-Magazin der Universität Potsdam N2 - Liebe Leserin, lieber Leser, wenn es nach der Bundesfamilienrninisterin geht, soll Deutschland eines der familienfreundlichsten Länder in Europa werden. Noch sieht die Realität allerdings anders aus. Wie Ehemalige sich zwischen familiären und beruflichen Optionen entschieden haben, welche Probleme sie zu bewältigen hatten und welche Lösungen sie fanden, davon berichten sie in unserem Titelthema. Jede dritte Akademikerin bleibt heute in Deutschland kinderlos, Tendenz steigend. Abgesehen davon, dass es auch schlichtweg Lebensentwürfe ohne Kinder gibt: Ein nicht unwesentlicher Grund dafür ist sicherlich, dass die größte Last bei der Kindererziehung immer noch Frauen tragen und sie deshalb auch die größeren Einbußen in ihrer Karriere haben. So herrscht bei vielen Arbeitgebern das Vorurteil, Mütter in Führungspositionen wären weniger leistungsfahig. Dass aber gerade eine Familie Frauen in verantwortungsvollen Positionen den Rücken stärken und zu noch größerem Einsatz beflügeln kann, davon berichtet der einführende Artikel. Ein Beispiel dafür, dass sich Familie und eine berufliche Führungsposition vereinbaren lassen, ist auch Uni-Präsidentin, Prof. Dr.-Ing. Dr. Sabine Kunst. In einem Interview verrät sie ihr ganz persönliches Erfolgsrezept und stellt außerdem die strategische Ausrichtung der Hochschule in den nächsten Jahren vor. Wenn Sie Ihre Erfahrungen zu unserem Titelthema mit anderen Ehemaligen diskutieren wollen, können Sie dies unter ,,Forum" in unserem "alumni-portal" tun. Wie immer freuen wir uns auf Ihre Meinung zur vorliegenden Ausgabe von ,,Portal alurnni" und wünschen Ihnen viele Vergnügen beim Lesen. Viele Grüße aus Potsdam Ihr Alumni-Team N2 - Dear readers, if the Federal Ministry for Family Affairs has its way, then Germany should become one ofthe most family friendly countries in Europe. However, today's reality shows a much different picture. ln our cover story, alumni report on how they have decided between familial and professional options as weil as on the problems solved along the way, and those yet to be mastered. One-third of all warnen with academic degrees do not have children. Not disregarding that there are paths in life which simply do not include having children, an important reason for this tendency lies without doubt in the fact that warnen still continue to carry the largest burden in the childrearing process, and that they therefore experience more serious Iosses regarding their professional careers than their male counterparts. For example, bias against mothers in leadership positions, due to their supposed reduced productivity, is still widely held by employers. The main article of our cover story shows that it is especially the family which can support warnen in positions of responsibility. The university's president, Prof Dr.-lng. Dr. Sabine Kunst, provides us with one prominent example of the compatibi/ity offamily and a professionalleadership position. ln an intenview she reveals her personal recipe for success - and discusses the strategic development of the university in the years to come. lf you would like to discuss your experiences regarding family and professional life with other alumni, please feel free to do so in the "forum" on our "alumni-portal". As always, we hope you enjoy reading this issue of the "Portal alumni" and appreciate your feedback. With best regards from Potsdam, Your Alumni Team T3 - Portal alumni : das Ehemaligen-Magazin der Universität Potsdam - 5/2007 Y1 - 2007 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-482109 VL - 2007 IS - 5 EP - 58 ER - TY - GEN A1 - Scarpeci, Telma E. A1 - Zanor, María I. A1 - Carrillo, Néstor A1 - Mueller-Roeber, Bernd A1 - Valle, Estela M. T1 - Generation of superoxide anion in chloroplasts of Arabidopsis thaliana during active photosynthesis BT - a focus on rapidly induced genes T2 - Postprints der Universität Potsdam : Mathematisch Naturwissenschaftliche Reihe N2 - The antioxidant defense system involves complex functional coordination of multiple components in different organelles within the plant cell. Here, we have studied the Arabidopsis thaliana early response to the generation of superoxide anion in chloroplasts during active photosynthesis. We exposed plants to methyl viologen (MV), a superoxide anion propagator in the light, and performed biochemical and expression profiling experiments using Affymetrix ATH1 GeneChip(R) microarrays under conditions in which photosynthesis and antioxidant enzymes were active. Data analysis identified superoxide-responsive genes that were compared with available microarray results. Examples include genes encoding proteins with unknown function, transcription factors and signal transduction components. A common GAAAAGTCAAAC motif containing the W-box consensus sequence of WRKY transcription factors, was found in the promoters of genes highly up-regulated by superoxide. Band shift assays showed that oxidative treatments enhanced the specific binding of leaf protein extracts to this motif. In addition, GUS reporter gene fused to WRKY30 promoter, which contains this binding motif, was induced by MV and H2O2. Overall, our study suggests that genes involved in signalling pathways and with unknown functions are rapidly activated by superoxide anion generated in photosynthetically active chloroplasts, as part of the early antioxidant response of Arabidopsis leaves. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 866 KW - antioxidant response KW - chloroplast KW - Hsp KW - oxidative stress KW - WRKY Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-434254 SN - 1866-8372 IS - 866 SP - 361 EP - 378 ER - TY - JOUR A1 - Thust, Susann A1 - Schäfer, Judith A1 - Olias, Gisela A1 - Ludwig, Joachim A1 - Kirsch, Bärbel A1 - Burkhardt, Frieder T1 - Portal = Strategie: Gemeinsam exzellent werden BT - Das Potsdamer Universitätsmagazin N2 - Aus dem Inhalt: - Strategie: Gemeinsam exzellent werden - Erstsemesterbegrüßung - Drei Nobelpreisträger in Golm T3 - Portal: Das Potsdamer Universitätsmagazin - 10-12/2007 Y1 - 2007 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-440107 SN - 1618-6893 IS - 10-12/2007 ER - TY - JOUR A1 - Räder, Andy A1 - Heimann, Heinz-Dieter A1 - Partenheimer, Lutz A1 - Hahn, Peter-Michael A1 - Göse, Frank A1 - Tosch, Frank A1 - Berner, Elisabeth A1 - Schiefelbein, Claudia T1 - Portal = Erinnerungswürdig: 850 Jahre Mark Brandenburg BT - Die Potsdamer Universitätszeitung N2 - Aus dem Inhalt: - Erinnerungswürdig: 850 Jahre Mark Brandenburg - Chefsessel getauscht - Angebote für Schlüsselkompetenzen - Kampf gegen übergewichtige Kinder T3 - Portal: Das Potsdamer Universitätsmagazin - 07-09/2007 Y1 - 2007 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-440098 SN - 1618-6893 IS - 07-09/2007 ER - TY - JOUR A1 - Bütow, Sascha A1 - Räder, Andy T1 - Portal = Gemeinsam stark: Studierende engagieren sich vielerorts BT - Die Potsdamer Universitätszeitung N2 - Aus dem Inhalt: - Gemeinsam stark: Studierende engagieren sich vielerorts - Europaweit einmaliger Studiengang - Vom Ende der Glühlampe - Rätsel um Kanaren-Fisch gelöst T3 - Portal: Das Potsdamer Universitätsmagazin - 06/2007 Y1 - 2007 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-440085 SN - 1618-6893 IS - 06/2007 ER - TY - JOUR A1 - Hellmann, Uwe A1 - Rettweiler, Udo A1 - Kramer, Annette A1 - Zehe, Erwin A1 - Jacob, Andreas A1 - Hafner, Johann Evangelist A1 - Tronicke, Jens A1 - Mühle, Ralf-Udo A1 - Klauss, Susanne A1 - Dietrich, Larissa A1 - Richter, Norbert A1 - Schweigl, Kerstin T1 - Portal = Ressource Wasser: Mehr als ein Elixier des Lebens BT - Die Potsdamer Universitätszeitung N2 - Aus dem Inhalt: - Ressource Wasser: Mehr als ein Elixier des Lebens - Dorniges hinter Glas - Die Profstars 2007 - Technik gegen unerwünschte Mithörer entwickelt T3 - Portal: Das Potsdamer Universitätsmagazin - 04-05/2007 Y1 - 2007 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-440051 SN - 1618-6893 IS - 04-05/2007 ER - TY - JOUR A1 - Ette, Ottmar A1 - Gessinge, Joachim A1 - Wiese, Heike A1 - Lehker, Christoph A1 - Räder, Andy A1 - Schaarschmidt, Uwe A1 - Meyerhöfer, Wolfram T1 - Portal = Jahr der Geisteswissenschaften: Sprache im Fokus BT - Die Potsdamer Universitätszeitung N2 - Aus dem Inhalt: - Jahr der Geisteswissenschaften: Sprache im Fokus - Promotionsprogramme erhalten gemeinsames Dach - Mehr Aggression durch Spiele - Sterbehilfe – ein Thema für Philosophen T3 - Portal: Das Potsdamer Universitätsmagazin - 01-03/2007 Y1 - 2007 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-440049 SN - 1618-6893 IS - 01-03/2007 ER - TY - BOOK ED - Kosta, Peter ED - Schürcks, Lilia T1 - Linguistic Investigations into Formal Description of Slavic Languages BT - Contributions of the sixth European Conference held at Potsdam University, November 30 - December 02, 2005 T3 - Potsdam Linguistic Investigations Y1 - 2007 SN - 978-3-631-55376-3 VL - 1 PB - Peter Lang CY - Frankfurt am Main ER - TY - BOOK ED - Kliegl, Reinhold T1 - Conference Abstracts : ECEM 2007 ; 14. European Conference on Eye Movements ECEM2007, Potsdam, August 19 - 23, 2007 T3 - Journal of eye movement research : Special issue Y1 - 2007 UR - http://www.jemr.org/online/1/s1 SN - 1995-8692 VL - 1 PB - Universität CY - Potsdam ER - TY - JOUR A1 - Kliegl, Reinhold T1 - Zur Wahrnehmung und (Selbst-)Attribution von Kausalität Y1 - 2007 SN - 978-3-939818-07-6 ER - TY - JOUR A1 - Engbert, Ralf A1 - Nuthmann, Antje A1 - Kliegl, Reinhold T1 - An lterative algorithm for the estimation of the distribution of mislocated fixations during reading Y1 - 2007 SN - 978-0-08-044980-7 ER - TY - JOUR A1 - Bohn, Christiane A1 - Kliegl, Reinhold T1 - Post-interpretive processes influence interpretive processing during reading: evidence from eye movements Y1 - 2007 SN - 978-18-4169-96-9 ER - TY - JOUR A1 - Schroeder, Christoph T1 - Boeschoten, H., Johanson, L. (Hrsg.), Turkic languages in contact; Wiesbaden, Harrassowitz, 2006 BT - Turkic languages in contact Y1 - 2007 ER - TY - JOUR A1 - Schmitt, Hanno T1 - Volksaufklärung an der Rochowschen Musterschule in Reckahn Y1 - 2007 SN - 978-3-934686-44-1 ER - TY - BOOK ED - Böning, Holger ED - Schmitt, Hanno ED - Siegert, Reinhart T1 - Volksaufklärung : eine praktische Reformbewegung des 18. und 19. Jahrhunderts T3 - Presse und Geschichte - neue Beiträge Y1 - 2007 SN - 978-3-934686-44-1 VL - 27 PB - Ed. Lumière CY - Bremen ER - TY - BOOK A1 - Schübel, Adelbert A1 - Siehr, Karl-Heinz T1 - Neue Diktatbeispiele : Klasse 7-10 Y1 - 2007 SN - 978-306-10224-7-1 PB - Cornelsen CY - Berlin ER - TY - JOUR A1 - Wiemann, Dirk T1 - From Forked Tongue to Forked Tongue : Rushdie and Milton in the Postcolonial conversation Y1 - 2007 UR - http://jcl.sagepub.com/content/42/2/47.full.pdf+html SN - 0021-9894 ER - TY - JOUR A1 - Ette, Ottmar T1 - El occidente revisitado. Max Aub : escribir (desde) el movimiento Y1 - 2007 SN - 978-84-95418-57-9 ER - TY - JOUR A1 - Ette, Ottmar T1 - Max Aub en su primer centenario (A modo de presentación) Y1 - 2007 SN - 978-84-95418-57-9 ER - TY - GEN A1 - Ette, Ottmar T1 - Das Mobile des Wissens : Alexander von Humboldts Foren der Kulturen und das Humboldt-Forum Y1 - 2007 UR - www.bpb.de/system/files/pdf/HMUKKK.pdf (29.8.2013) ER - TY - BOOK ED - Buschmann, Albrecht ED - Ette, Ottmar T1 - Aub in Aub T3 - Potsdamer Beiträge zur Kultur- und Sozialgeschichte Y1 - 2007 SN - 978-3-89626-589-0 VL - 2 PB - trafo CY - Berlin ER - TY - JOUR A1 - Ette, Ottmar T1 - Desde un alejana cerecanía : los modernistas hispanoamericanos y el "Don Quijote" de Miguel de Cervantes Y1 - 2007 SN - 978-84- 935774-0-7 ER - TY - JOUR A1 - Ette, Ottmar T1 - Towards World Science? Humboldtian Science, World Concepts, and Transarea Studies Y1 - 2007 SN - 978-84-8489-303-5 ER - TY - JOUR A1 - Ette, Ottmar T1 - Literaturwissenschaft als Lebenswissenschaft : eine Programmzeitschrift im Jahr der Geisteswissenschaften Y1 - 2007 SN - 978-3-8233-6540-2 ER - TY - JOUR A1 - Ette, Ottmar T1 - Lebensfuge oder eine Philosophie des ÜberLebenSchreibens : Laudatio für Jorge Semprún Y1 - 2007 SN - 978-3-8233-6540-2 ER - TY - JOUR A1 - Schwarz, Anja T1 - Strategic uses of multiculturalism in Germay and Australia Y1 - 2007 SN - 978-90-420-2307-9 ER - TY - JOUR A1 - Lloyd, Justine A1 - Schwarz, Anja T1 - The Pacific Solution meets Fortress Europe : Emerging Parallels in Transnational Refugee Regimes Y1 - 2007 SN - 978-90-420-2307-9 ER - TY - JOUR A1 - Heimann, Heinz-Dieter T1 - henchin hanauwe und seine Welt an der Medienschwelle um 1500 : Nachrichten-, brief- und verkehrsgeschichtliche Eindrücke 'fussläufiger' Medien Y1 - 2007 SN - 978-3-7705-4409-7 ER - TY - BOOK A1 - Heimann, Heinz-Dieter A1 - Langner, Martin M. A1 - Müller, Mario A1 - Zacke, Birgit T1 - Weltbilder des mittelalterlichen Menschen T3 - Studium Litterarum : Studien und Texte zur deutschen Literaturgeschichte Y1 - 2007 SN - 978-3-89693-476-5 VL - 12 PB - Weidler CY - Berlin ER - TY - BOOK ED - Bartels, Anke ED - Wiemann, Dirk T1 - Global Fragments: (Dis)Orientation in the new world order T3 - Cross cultures Y1 - 2007 SN - 978-90-420-2182-2 VL - 90 PB - Rodopi CY - Amsterdam, New York, NY ER - TY - JOUR A1 - Wiemann, Dirk T1 - Teaming multitudes : lagaan and the nation in globality Y1 - 2007 SN - 978-90-420-2182-2 ER - TY - JOUR A1 - Schwarz, Anja T1 - Mapping (un-)Australian identities: "Territorial disputes" in Christos Tsiolkas Loaded Y1 - 2007 SN - 978-90-420-2182-2 ER - TY - JOUR A1 - Wiemann, Dirk A1 - Bartels, Anke T1 - Global Fragments : an Introduction Y1 - 2007 SN - 978-90-420-2182-2 ER - TY - JOUR A1 - Haag, Johannes T1 - Weltbezug und Objektivität in nicht-relationalen Konzeptionen der Intentionalität Y1 - 2007 SN - 978-3- 89785-569-4 ER - TY - JOUR A1 - Haag, Johannes T1 - Kant und die Farben Y1 - 2007 SN - 978-3-518- 29425-3 ER - TY - JOUR A1 - Schroeder, Christoph T1 - The use of tane in spoken Turkish Y1 - 2007 SN - 978-975-50196-60-7 ER - TY - BOOK A1 - Lehnert, Gertrud T1 - Frauen, die man kennen muss : von Maria Sibylla Merian bis Anna Freud Y1 - 2007 SN - 978-3-74668-2307-8 PB - Aufbau CY - Berlin ER - TY - BOOK ED - Schwarz, Anja ED - West-Pavlov, Russell T1 - Polyculturalism and discourse Y1 - 2007 SN - 978-9042023079 PB - Rodopi CY - Amsterdam ER - TY - JOUR A1 - Eckstein, Lars T1 - Introduction Y1 - 2007 SN - 978-3-8252-8345-2 ER - TY - JOUR A1 - Herra, Rafael Ángel T1 - Scrivo perché tu esista / escribo para tu existas Y1 - 2007 ER - TY - BOOK A1 - Haag, Johannes T1 - Erfahrung und Gegenstand : das Verhältnis von Sinnlichkeit und Verstand T3 - Philosophische Abhandlungen Y1 - 2007 SN - 978-3-465-03525-1 VL - 95 PB - Klostermann CY - Frankfurt am Main ER - TY - JOUR A1 - Sepe, Franco T1 - Frammenti dal vivere sottile Y1 - 2007 ER - TY - BOOK A1 - Sepe, Franco T1 - Elegia planetaria : poesia T3 - Pretesti Y1 - 2007 SN - 978-88-8176-987-2 VL - 322 PB - Manni CY - Lecce ER - TY - JOUR A1 - Schroeder, Christoph T1 - Orthography in German-Turkish language contact Y1 - 2007 SN - 978-2-296-02576-9 ER - TY - JOUR A1 - Schröder, Christoph T1 - Integration und Sprache Y1 - 2007 UR - http://www.bpb.de/publikationen/HZQ3QQ,0,0,Integration_und_Sprache.html SN - 0479-611X ER - TY - JOUR A1 - Stockhorst, Stefanie T1 - Die Ästhetisierung der Anatomie : medizinische und literarische Referenzräume in Durs Grünbeins "Schädelbasislektion" Y1 - 2007 SN - 3-793-9492-8 ER - TY - JOUR A1 - Stockhorst, Stefanie T1 - Defining conventions for the verse epic in German : notes on the Relationship between codified poetics and poetological paratexts in the baroque poetry reform Y1 - 2007 ER - TY - JOUR A1 - Stockhorst, Stefanie T1 - In viaggio alla ricerca dell'identità : la 'rinascita' di Goethe in Italia Y1 - 2007 SN - 3-631-55397-8 ER - TY - JOUR A1 - Eckstein, Lars A1 - Leypoldt, Günter T1 - T.S. Eliot and the transcultural sublime Y1 - 2007 SN - 978-3-88476-976-8 ER - TY - JOUR A1 - Stockhorst, Stefanie T1 - Die Normierung des heroischen Versepos im Deutschen : zum Verhältnis von kodifizierter Poetik und poetologischen Paratexten im Zeichen der barocken Dichtungsreform Y1 - 2007 ER - TY - JOUR A1 - Stockhorst, Stefanie T1 - Nationales Theater : Deutsch-französische Verwerfungen bei Gustav Freytag Y1 - 2007 ER - TY - JOUR A1 - Stockhorst, Stefanie T1 - Beller, M., Eingebildete Nationalcharaktere. Vorträge und Aufsätze zur literarischen Imagologie; Göttingen, V& R unipress, 2006 BT - Eingebildete Nationalcharaktere. Vorträge und Aufsätze zur literarischen Imagologie Y1 - 2007 ER - TY - BOOK A1 - Eckstein, Lars T1 - English literatures across the globe : a companion T3 - UTB : Literaturwissenschaft Y1 - 2007 SN - 978-3-4252-9 VL - 8345 PB - Fink CY - Paderborn ER - TY - BOOK A1 - Happel, Eberhard Werner ED - Stockhorst, Stefanie T1 - Der Insulanische Mandorell (1682) : [Im Anhang: Pierre-Daniel Huets "Traitte de l'origine des romans" (1670)] T3 - Bibliothek seltener Texte Y1 - 2007 SN - 978-3-89693-505-2 VL - 12 PB - Weidler CY - Berlin ER - TY - JOUR A1 - Stockhorst, Stefanie T1 - Tagungsbericht zum Panel "Cultural Transfer through Translationö im Rahmen des 38. Jahrestreffens der American Society for Eighteenth-Century Studies (ASECS) in Atlanta, GA (USA) vom 22. bis 25. März 2007 Y1 - 2007 SN - 0722-740X ER - TY - JOUR A1 - Stockhorst, Stefanie T1 - Taberner, S. (Hrsg.), Cooke, P. (Hrsg.), German culture, politics, and literature into the twenty-first century: beyond normalization; Rochester, Camden, 2006 BT - German culture, politics, and literature into the twenty-first century: beyond normalization Y1 - 2007 ER - TY - JOUR A1 - Stockhorst, Stefanie T1 - Sänger, J. (Hrsg.), Deile, L. (Hrsg.), Spannungsreich und freudevoll. Jenaer Festkultur um 1800; Köln, Böhlau, 2005 BT - Spannungsreich und freudevoll. Jenaer Festkultur um 1800 Y1 - 2007 ER - TY - JOUR A1 - Eckstein, Lars T1 - Three ways of looking at illegal immigration : clandestine existence in novels by Salman Rushdie, Christopher Hope and Caryl Phillips Y1 - 2007 SN - 978-3-8260-3769-6 ER - TY - JOUR A1 - Eckstein, Lars T1 - Ripple, G., Beschreibungs-Kunst: zur intermedialen Poetik angloamerikanischer Ikontexte (1880-2000); München, Fink, 2005 BT - Beschreibungs-Kunst: zur intermedialen Poetik angloamerikanischer Ikontexte (1880-2000) Y1 - 2007 ER - TY - JOUR A1 - Gharib, Mona A1 - Schaub, Torsten H. A1 - Mercer, Robert E. T1 - Incremental answer set programming : a preliminary report Y1 - 2007 ER - TY - JOUR A1 - Zehe, Erwin A1 - Elsenbeer, Helmut A1 - Lindenmaier, Falk A1 - Schulz, K. A1 - Blöschl, Günter T1 - Patterns of predictability in hydrological threshold systems N2 - [1] Observations of hydrological response often exhibit considerable scatter that is difficult to interpret. In this paper, we examine runoff production of 53 sprinkling experiments on the water-repellent soils in the southern Alps of Switzerland; simulated plot scale tracer transport in the macroporous soils at the Weiherbach site, Germany; and runoff generation data from the 2.3-km(2) Tannhausen catchment, Germany, that has cracking soils. The response at the three sites is highly dependent on the initial soil moisture state as a result of the threshold dynamics of the systems. A simple statistical model of threshold behavior is proposed to help interpret the scatter in the observations. Specifically, the model portrays how the inherent macrostate uncertainty of initial soil moisture translates into the scatter of the observed system response. The statistical model is then used to explore the asymptotic pattern of predictability when increasing the number of observations, which is normally not possible in a field study. Although the physical and chemical mechanisms of the processes at the three sites are different, the predictability patterns are remarkably similar. Predictability is smallest when the system state is close to the threshold and increases as the system state moves away from it. There is inherent uncertainty in the response data that is not measurement error but is related to the observability of the initial conditions. Y1 - 2007 U6 - https://doi.org/10.1029/2006wr005589 SN - 0043-1397 ER - TY - JOUR A1 - Wirges, Werner A1 - Wegener, Michael A1 - Voronina, Olena A1 - Zirkel, Larissa A1 - Gerhard, Reimund T1 - Optimized preparation of elastically soft, highly piezoelectric, cellular ferroelectrets from nonvoided poly(ethylene terephthalate) films N2 - Electrically charged cellular polymer films can exhibit very high piezoelectric activity and are therefore more and more often employed in advanced electromechanical and electro-acoustical transducers. In this paper, we report an optimized sequence of steps for preparing such ferroelectrets from commercial nonvoided ploy(ethylene terephthalate) (PETP) films by means of foaming with CO2 biaxial mechanical stretching, controlled void inflation, and bipolar electric charging. The nonvoid PETP films foamed with supercritical CO2 at a suitably high pressure and subsequently annealed for stabilization. The cellular foam structure was further optimized by means of well controlled biaxial stretching in a commercial stretcher and sometimes subsequent inflamation in a pressure chamber. Bipolar electric charging of the internal voids was achieved through the application of high electric fields in an SF0 atmosphere. The new optimized PETP ferroelectric exhibit quite large piezoelectric coefficients up to almost 500 pCN(-1), for which unusually low elastic stiffness of only around 0.3 MPa are essential. The PETP foam ferroelectrics posses unclamped thickenss-extension resonance frequences between approximately 120 and 250 kHz, and are thus highly suitable for several established as well as novel ultrasonic-transductant applications. Y1 - 2007 UR - http://onlinelibrary.wiley.com/doi/10.1002/adfm.200600162/pdf U6 - https://doi.org/10.1002/adfm.200600162 ER - TY - BOOK A1 - Weithoff, Guntram T1 - Dietary restriction in two rotifers species : the effect of the length of food deprivation on life span and reproduction N2 - According to resource allocation theory, animals face a trade off between the allocation of resources into reproduction and into individual growth/maintenance. This trade off is reinforced when food conditions decline. It is well established in biological research that many animals increase their life span when food is in suboptimal supply for growth and/or reproduction. Such a situation of reduced food availability is called dietary restriction. An increase in life span under dietary restricted conditions is seen as a strategy to tolerate periods of food shortage so that the animals can start reproduction again when food is in greater supply. In this study, the effect of dietary restriction on life span and reproduction in two rotifer species, Cephalodella sp. and Elosa worallii, was investigated using life table experiments. The food concentration under dietary restricted conditions was below the threshold for population growth. It was (1) tested whether the rotifers start reproduction again after food replenishment, and (2) estimated whether the time scale of dietary restricted conditions is relevant for the persistence of a population in the field. Only E. worallii responded to dietary restriction with an increase in life span at the expense of reproduction. After replenishment of food, E. worallii started to reproduce again within I day. With an increase in the duration of dietary restricted conditions of up to 15 days, which is longer than the median life span of E. worallii under food saturation, the life span increased and the life time reproduction decreased. These results suggest that in a temporally (or spatially) variable environment, some rotifer populations can persist even during long periods of severe food deprivation. Y1 - 2007 UR - http://www.jstor.org/stable/40210866 U6 - https://doi.org/10.1007/s00442-007-0739-6 ER - TY - JOUR A1 - Wacker, Philipp A1 - Dahms, Katja A1 - Senge, Mathias O. A1 - Kleinpeter, Erich T1 - Conformational Landscape of meso-(1,3-Dithian-2-yl)porphyrins N2 - An investigation of the conformational landscape of 1,3-dithian-2-yl bearing porphyrins and the rotational behavior of the dithianyl substituents in meso position was carried out by variable-temperature (VT) NMR spectroscopy. Additionally, theoretical results for alternative conformations and energy barriers were obtained by molecular modeling. The study revealed different NH trans tautomers with regard to the orientation of the dithianyl ligands for the free base porphyrins 1-3. Relatively ruffled porphyrin core conformations were established for the transition states of the dithianyl rotation, resulting in a lower rotational energy barrier for the nickel(II) complex 4 compared to that of the free base systems. The data obtained and the first depiction of a rotational transition state for the rotation of bulky meso-alkyl substituents illustrate the close structural interplay between meso-alkyl substituents and the macrocycle conformation in porphyrins. Y1 - 2007 UR - http://pubs.acs.org/doi/full/10.1021/jo0708700 U6 - https://doi.org/10.1021/Jo0708700 ER - TY - JOUR A1 - Tirok, Katrin A1 - Gaedke, Ursula T1 - Regulation of planktonic ciliate dynamics and functional composition during spring in Lake Constance N2 - Protozoans are among the most important grazers of phytoplankton and remineralizers of nutrients in marine and freshwater ecosystems, but less is known about the regulation of their population dynamics. We analyzed a 12 yr data set of ciliate biomass and species composition in large, deep Lake Constance to understand the factors influencing ciliate spring development. The start of ciliate net growth in spring was closely linked to that of edible algae, chlorophyll a and the vertical mixing intensity, but independent of water temperature. During ciliate spring growth, the relative contribution of ciliated interception feeders was positively related to that of cryptomonads, whereas the relative contribution of filter feeders correlated positively with that of non-cryptomonads. The duration of ciliate dominance in spring was largely controlled by the highly variable onset of the phytoplankton bloom, as the termination of the ciliate bloom was less variable. During years with an extended spring bloom of algae and ciliates, internally forced species shifts were observed in both communities. Interception feeders alternated with filter feeders in their relative importance as did cryptomonads and non-cryptomonads. Extended spring blooms were observed when vertical mixing intensity was low at low temperatures during early spring, which will become less likely under the anticipated climate change scenarios. The termination of the ciliate spring bloom occurred prior to a reduction in food concentration and mostly also prior to the mass development of daphnids alone, but coincided with increased grazing by various predators together, such as rotifers, copepods and daphnids in late May/early June. Y1 - 2007 UR - http://www.int-res.com/articles/ame2007/49/a049p087.pdf U6 - https://doi.org/10.3354/Ame01127 ER - TY - JOUR A1 - Tirok, Katrin A1 - Gaedke, Ursula T1 - The effect of irradiance, vertical mixing and temperature on spring phytoplankton dynamics under climate change : long-term observations and model analysis N2 - Spring algal development in deep temperate lakes is thought to be strongly influenced by surface irradiance, vertical mixing and temperature, all of which are expected to be altered by climate change. Based on long-term data from Lake Constance, we investigated the individual and combined effects of these variables on algal dynamics using descriptive statistics, multiple regression models and a processoriented dynamic simulation model. The latter considered edible and less-edible algae and was forced by observed or anticipated irradiance, temperature and vertical mixing intensity. Unexpectedly, irradiance often dominated algal net growth rather than vertical mixing for the following reason: algal dynamics depended on algal net losses from the euphotic layer to larger depth due to vertical mixing. These losses strongly depended on the vertical algal gradient which, in turn, was determined by the mixing intensity during the previous days, thereby introducing a memory effect. This observation implied that during intense mixing that had already reduced the vertical algal gradient, net losses due to mixing were small. Consequently, even in deep Lake Constance, the reduction in primary production due to low light was often more influential than the net losses due to mixing. In the regression model, the dynamics of small, fast-growing algae was best explained by vertical mixing intensity and global irradiance, whereas those of larger algae were best explained by their biomass 1 week earlier. The simulation model additionally revealed that even in late winter grazing may represent an important loss factor during calm periods when losses due to mixing are small. The importance of losses by mixing and grazing changed rapidly as it depended on the variable mixing intensity. Higher temperature, lower global irradiance and enhanced mixing generated lower algal biomass and primary production in the dynamic simulation model. This suggests that potential consequences of climate change may partly counteract each other. Y1 - 2007 UR - http://www.springerlink.com/content/p450177134590p61/ U6 - https://doi.org/10.1007/s00442-006-0547-4 ER - TY - JOUR A1 - Spijkerman, Elly A1 - Barua, Deepak A1 - Gerloff-Elias, Antje A1 - Gaedke, Ursula A1 - Heckathorn, S. A. T1 - Stress responses and metal tolerance of Chlamydomonas acidophila in metal-enriched lake water and artificial medium N2 - Chlamydomonas acidophila faces high heavy-metal concentrations in acidic mining lakes, where it is a dominant phytoplankton species. To investigate the importance of metals to C. acidophila in these lakes, we examined the response of growth, photosynthesis, cell structure, heat-shock protein (Hsp) accumulation, and metal adsorption after incubation in metal-rich lake water and artificial growth medium enriched with metals (Fe, Zn). Incubation in both metal-rich lake water and medium caused large decreases in photosystem II function (though no differences among lakes), but no decrease in growth rate (except for medium + Fe). Concentrations of small Hsps were higher in algae incubated in metal-rich lake- water than in metal-enriched medium, whereas Hsp60 and Hsp70A were either less or equally expressed. Cellular Zn and Fe contents were lower, and metals adsorbed to the cell surface were higher, in lake-water-incubated algae than in medium- grown cells. The results indicate that high Zn or Fe levels are likely not the main or only contributor to the low primary production in mining lakes, and multiple adaptations of C. acidophila (e.g., high Hsp levels, decreased metal accumulation) increase its tolerance to metals and permit survival under such adverse environmental conditions. Supposedly, the main stress factor present in the lake water is an interaction between low P and high Fe concentrations. Y1 - 2007 UR - http://www.springerlink.com/content/p7273234p8255263/ U6 - https://doi.org/10.1007/s00792-007-0067-0 ER - TY - JOUR A1 - Selting, Margret T1 - Lists as embedded structures and the prosody of list construction as an interactional resource N2 - After giving an overview of the treatment of lists in the literature, I describe lists in German talk-in- interaction. I show that, apart from the preference for three-part lists described by Jefferson (1990), lists are embedded in a larger three-component structure that the list is the middle part of. For lists proper, I suggest to differentiate between closed and open lists that are produced with different kinds of practices. It is the prosody that is used to suggest the list as made up of a closed or an open number of list items, irrespective of its syntactic embedding. I then concentrate on open lists, in particular their intonation. Open lists may be produced with different kinds of, albeit similar, intonation contours. But it is not so much the particular intonation contour that is constitutive of lists, but a variety of similar contours plus the repetition of the chosen contour for at least some or even all of the list items. Furthermore, intonation is deployed to suggest the interpretation of a potential final list item as either a designed list completer or as another designed item of the list. The design of this final list item as a completer or as another list item is used as a practice to signal the non-completion or completion of the list proper. But even after completing the list proper, the larger three-component structure also has to be closed in order to embed and accommodate the list into the surrounding sequential interaction. For the analysis of the practices of list construction I am concentrating on the role of prosody, especially intonation, giving evidence to show that intonation is indeed one of the methodically used constitutive cues that makes the production and structuring of lists recognizable for recipients. Y1 - 2007 UR - http://dx.doi.org/10.1016/j.pragma.2006.07.008 ER - TY - JOUR A1 - Schmid, Brigitte A1 - Hohm, Erika A1 - Blomeyer, Dorothea A1 - Zimmermann, Ulrich S. A1 - Schmidt, Martin H. A1 - Esser, Günter A1 - Laucht, Manfred T1 - Concurrent alcohol and tobacco use during early adolescence characterizes a group at risk N2 - Aims: To investigate whether concurrent alcohol and tobacco use during early adolescence characterizes a subgroup that differs from users of one substance only regarding several risk factors for later substance use problems. Methods: Participants were from a prospective longitudinal cohort study of 384 children at risk for later psychopathology, with the majority being born with obstetric complications and psychosocial adversities. Assessments of adolescent drug consumption and related intrapersonal characteristics were obtained at age 15. Results: Compared to consumers of alcohol only, 15-year-olds drinking and smoking during the same time period (past 4 weeks) had significantly higher levels of consumption and more excessive use of alcohol, started drinking at an earlier age, had higher scores on the Fagerstrom Test for Nicotine Dependence, and more cannabis use. This group could be distinguished from users of alcohol only by higher novelty seeking and more positive alcohol effect expectancies. Compared to consumers of tobacco only, concurrent users reported higher nicotine dependence and more cannabis use. No significant differences were observed regarding frequency and age at initiation of tobacco use, tobacco-related sensitivity, self- efficacy and instrumentality as well as novelty seeking. Conclusions: Concurrent alcohol and tobacco use during early adolescence is associated with characteristics that are well known as risk factors for later alcohol use problems and dependence and that should be targeted by prevention programs. Y1 - 2007 UR - http://alcalc.oxfordjournals.org/ U6 - https://doi.org/10.1093/alcalc/agm024 SN - 0735-0414 ER - TY - JOUR A1 - Rudershausen, S. A1 - Drexler, Hans-Joachim A1 - Banße, Wolfgang A1 - Kelling, Alexandra A1 - Schilde, Uwe A1 - Holdt, Hans-Joachim T1 - Three polymorphs of bis(5-methylthio-1,2-dithiole-3-thione)-disulfide N2 - The title compound, bis(5-methylthio-1,2-dithiole-3-thione)-disulfide, was yielded for the first time as by- product of the reaction of nickel(II) and cobalt(II) ions with 5-methylthio-1,2-dithiole-3-thione-4-thiolate. The compound can be obtained directly by oxidation of the ammonium salt of the ligand. C8H6S10 forms three polymorphs: (I), which crystallizes in the orthorhombic space group P212121, (II) and (III), which crystallize in the monoclinic space groups P21/c and P21/n, respectively. The crystal and molecular structures are presented here. The determination of the absolute configuration of (I) indicated the P-helical enantiomer. In contrast to this, the crystals of (II) und (III) are racemic, containing P- and M-helical enantiomers. The polymorphs differ in the kind of skewing around the disulfide bond and of the positions of the both dithiole rings to the S-S-moiety Y1 - 2007 UR - http://onlinelibrary.wiley.com/doi/10.1002/crat.200610776/pdf U6 - https://doi.org/10.1002/crat.200610776 ER - TY - JOUR A1 - Spijkerman, Elly A1 - Bissinger, Vera A1 - Gaedke, Ursula T1 - Low potassium and inorganic carbon concentrations influence a possible phosphorus limitation in Chlamydomonas acidophila N2 - Chlamydomonas acidophila, a dominant phytoplankton species in the very acidic Lake 111 (pH 2.7) situated in Germany, faces low concentrations of inorganic phosphorus (P-i), inorganic carbon (C-i) and potassium (K+) in its environment, which may lead to a complex colimitation by these nutrients. We performed laboratory and field investigations to test for P-i limitation and its dependence on C-i and K+ concentrations. The minimum cell quota for phosphorus (Q(0)) and phosphatase enzyme activity were similar to those for neutrophilic algae, despite the low pH and high concentrations of iron and aluminium, indicating no extra metabolic costs or inhibition of enzymes by the extreme environment. The threshold concentration of soluble reactive phosphorus for growth (SRPt), the algal C:P ratio and the alkaline phosphatase enzyme activity all suggested a moderate P-i limitation of C. acidophila in Lake 111. SRPt and Q(0) were higher at low CO2 and K+ concentrations in culture, showing a relationship between C-i and P-i acquisition. Furthermore, SRPt and Q(0) were higher under K+/P-i-colimiting conditions than under P-i-limiting conditions alone, suggesting that K+ concentrations influence P-i limitation in C. acidophila as well. Our results show that a limitation by one macronutrient requires consideration of the availability of the others as their uptake mechanisms depend on each other. Notwithstanding these interactions, C-i or K+ concentrations had no clear influence on the P-i limitation of C. acidophila in Lake 111. Y1 - 2007 UR - http://www.tandfonline.com/doi/full/10.1080/09670260701529596 U6 - https://doi.org/10.1080/09670260701529596 ER - TY - JOUR A1 - Bell, Elanor M. T1 - Seasonal changes in the concentration and metabolic activity of bacteria and viruses at an Antarctic coastal site N2 - Bacteria play a key role in the world's oceans, supporting nutrient remineralisation and mediating carbon transfer. Little is known about annual changes in bacterial concentration, production and metabolism during the extreme seasonal changes in biological productivity in Antarctic waters. We measured rates of bacterial production, concentrations of viruses and bacteria and environmental parameters between February 2004 and January 2005 at an Antarctic coastal site. Concentrations of total bacteria and viruses were obtained using 4', 6-diamidino-2- phenylindole (DAPI) and SYBR Green I (Molecular Probes), respectively. Populations of bacteria in different metabolic states were estimated using vital stains. Concentrations of bacteria with intact or compromised plasma membranes were estimated using BacLight (Molecular Probes) and active cells estimated using 6-carboxyfluorescein diacetate (6CFDA). Our study showed 6CFDA and BacLight gave rapid and ecologically valuable insights into bacterial physiology, production and growth in natural Antarctic communities that were poorly represented by changes in total cell concentrations. Concentrations of total, active and intact bacteria declined rapidly at the end of summer probably owing to viral infection and microheterotrophic grazing. The decline continued over winter, likely owing to substrate limitation, and concentrations only increased after the phytoplankton bloom in spring and summer. Bacterial abundance was positively correlated with particulate organic carbon (POC) and nitrogen (PON), but not dissolved organic carbon (DOC), reflecting the refractory nature of the DOC pool. Only active and intact bacteria were significantly correlated with concentrations of chl a and rates of bacterial production. Furthermore, the obtained rates of [H-3]thymidine uptake suggest that bacterial growth rates can be sustained by the populations identified as intact or by active cells alone. Y1 - 2007 UR - http://www.int-res.com/abstracts/ame/v47/n1/ ER - TY - JOUR A1 - Hoffmann, Armin S. A1 - Kane, Avinash S. A1 - Nettels, Daniel A1 - Hertzog, David E. A1 - Baumgärtel, Peter A1 - Lengefeld, Jan A1 - Reichardt, Gerd A1 - Horsley, David A. A1 - Seckler, Robert A1 - Bakajin, Olgica A1 - Schuler, Benjamin T1 - Mapping protein collapse with single molecule fluorescence and kinetic synchrotron radiation circular dichroism spectroscopy Y1 - 2007 UR - http://www.mendeley.com/research/mapping-protein-collapse-with-singlemolecule-fluorescence-and-kinetic- synchrotron-radiation-circular-dichroism-spectroscopy/# SN - 0027-8424 ER - TY - JOUR A1 - Parkinson, P. A1 - Aharon, E. A1 - Chang, M. H. A1 - Dosche, Carsten A1 - Frey, G. L. A1 - Köhler, Anna A1 - Herz, L. M. T1 - Dimensionality-dependent energy transfer in polymer-intercalated SnS2 nanocomposites N2 - We have investigated the influence of dimensionality on the excitation-transfer dynamics in a conjugated polymer blend. Using time-resolved photoluminescence spectroscopy, we have measured the transfer transients for both a three-dimensional blend film and for quasi-two-dimensional monolayers formed through intercalation of the polymer blend between the crystal planes of an inorganic SnS2 matrix. We compare the experimental data with a simple, dimensionality- dependent model based on electronic coupling between electronic transition moments taken to be point dipoles. Within this approximation, the energy-transfer dynamics is found to adopt a three-dimensional character in the solid film and a two-dimensional nature in the monolayers present in the SnS2-polymer nanocomposite. Y1 - 2007 UR - http://prb.aps.org/toc/PRB/v75/i16 U6 - https://doi.org/10.1103/Physrevb.75.165206 ER - TY - JOUR A1 - Panzner, Tobias A1 - Gleber, Gudrun A1 - Sant, Tushar A1 - Leitenberger, Wolfram A1 - Pietsch, Ullrich T1 - Coherence experiments at the white-beam beamline of BESSYI N2 - The third-generation X-ray source BESSYII (Berlin, Germany) provides coherent X-ray radiation which can be used for static and dynamic speckle analysis. Recently we have demonstrated that one can perform experiments with coherent white radiation provided by a bending magnet (5 < E < 20 keV). In this paper we show that the diffraction figure of the initial pinhole must be considered for the interpretation of coherent experiments. The reflectivity spectrum of a sample results from the Fresnel diffraction of the incident pinhole deformed by the static speckle features of the sample surface. For dynamical experiments all speckle like features alter with time whereas the pure Fresnel fringes remain constant. (c) 2007 Published by Elsevier B.V. Y1 - 2007 UR - http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TW0-4N08M4P-1- F&_cdi=5548&_user=1584062&_orig=search&_coverDate=05%2F23%2F2007&_sk=994849985&view=c&wchp=dGLbVzW- zSkWA&md5=3a09375f874dccd9b382488e9d0 U6 - https://doi.org/10.1016/j.tsf.2006.12.002 ER - TY - JOUR A1 - Nuthmann, Antje A1 - Engbert, Ralf A1 - Kliegl, Reinhold T1 - The IOVP-effect in mindless reading : Experiment and modeling N2 - Fixation durations in reading are longer for within-word fixation positions close to word center than for positions near word boundaries. This counterintuitive result was termed the Inverted-Optimal Viewing Position (IOVP) effect. We proposed an explanation of the effect based on error-correction of mislocated fixations [Nuthmann, A., Engbert, R., & Kliegl, R. (2005). Mislocated fixations during reading and the inverted optimal viewing position effect. Vision Research, 45, 2201-2217], that suggests that the IOVP effect is not related to word processing. Here we demonstrate the existence of an IOVP effect in "mindless reading", a G-string scanning task. We compare the results from experimental data with results obtained from computer simulations of a simple model of the IOVP effect and discuss alternative accounts. We conclude that oculornotor errors, which often induce mislocalized fixations, represent the most important source of the IOVP effect. (c) 2006 Elsevier Ltd. All rights reserved. Y1 - 2007 U6 - https://doi.org/10.1016/j.visres.2006.11.005 ER - TY - JOUR A1 - Muster, Sina A1 - Elsenbeer, Helmut A1 - Conedera, Marco T1 - Small-scale effects of historical land use and topography on post-cultural tree species composition in an Alpine valley in southern Switzerland N2 - Investigations of spatial patterns in forest tree species composition are essential in the understanding of landscape dynamics, especially in areas of land-use change. The specific environmental factors controlling the present patterns, however, vary with the scale of observation. In this study we estimated abundance of adult trees and tree regeneration in a Southern Alpine valley in Ticino, Switzerland. We hypothesized that, at the present scale, spatial pattern of post-cultural tree species does not primarily depend on topographic features but responds instead to small- scale variation in historical land use. We used multivariate regression trees to relate species abundances to environmental variables. Species matrices were comprised of single tree species abundance as well as species groups. Groups were formed according to common ecological species requirements with respect to shade tolerance, soil moisture and soil nutrients. Though species variance could only be partially explained, a clear ranking in the relative importance of environmental variables emerged. Tree basal area of formerly cultivated Castanea sativa (Mill.) was the most important factor accounting for up to 50% of species' variation. Influence of topographic attributes was minor, restricted to profile curvature, and partly contradictory in response. Our results suggest the importance of biotic factors and soil properties for small-scale variation in tree species composition and need for further investigations in the study area on the ecological requirements of tree species in the early growing stage. Y1 - 2007 SN - 0921-2973 ER - TY - JOUR A1 - Pitzer, Martina A1 - Esser, Günter A1 - Schmidt, Martin H. A1 - Laucht, Manfred T1 - Temperament in the developmental course : a longitudinal comparison of New York Longitudinal Study-derived dimensions with the Junior Temperament and Character Inventory N2 - Objective: Despite theoretical discrepancies between different concepts of temperament, some core dimensions are thought to be common to the various models. We compared temperamental traits derived from the New York Longitudinal Study (NYLS) model and the Cloninger dimensions in the developmental course and investigated the associations of temperament with sex as well as with obstetric risks or psychosocial risks present at birth. - Methods: Participants were 151 boys and 157 girls born at differing degrees of obstetric and psychosocial risk from a longitudinal study on a high-risk community sample. In infancy and childhood, NYLS-derived temperamental characteristics were assessed by a highly structured parent interview and standardized behavioral observations. At age 15 years, the Junior Temperament and Character Inventory/1218 was administered. - Results: Moderate correlations were found between Junior Temperament and Character Inventory scales in adolescence and NYLS-derived factors in childhood. The psychosocial risk load seemed to influence the expression of novelty seeking or corresponding NYLS-derived factors, whereas the obstetric risks did not contribute to variation in temperament. Our findings further support highly sex-specific gene x environment interactions on temperament in the developmental course. - Conclusion: The content of our NYLS-derived factors and the specific type of association across different temperament constructs fit into the increasing consensus regarding a small number of higher-order temperamental traits. (c) 2007 Elsevier Inc. All rights reserved. Y1 - 2007 UR - http://www.researchgate.net/researcher/38774039_Martina_Pitzer U6 - https://doi.org/10.1016/j.comppsych.2007.05.007 SN - 0010-440X ER - TY - JOUR A1 - Stockhorst, Stefanie T1 - Eklogenprobleme im Barock : zur deutschsprachigen Rezeption von antikem Genusmodell und romanischen Mustertexten am Beispiel von Oswald Belings Bucolica-Übersetzung Y1 - 2007 SN - 3-8253-5393-1 ER - TY - JOUR A1 - Gast, Klaus A1 - Modler, Andreas Johannes T1 - Dynamic and static light scattering of proteins Y1 - 2007 SN - 978-1-600-21704-3 ER - TY - JOUR A1 - Mishra, Rajesh A1 - Bhat, Rajiv A1 - Seckler, Robert T1 - Chemical chaperone mediated protein folding : stabilization of P22 tailspike folding intermediates by glycerol Y1 - 2007 SN - 1431-6730 ER - TY - BOOK A1 - Petersen, Jens T1 - Wilhelm von Humboldts Rechtsphilosophie Y1 - 2007 SN - 978-3-89949-430-3 PB - de Gruyter CY - Berlin ER - TY - JOUR A1 - Lüth, Christoph T1 - Wilhelm von Humboldts Netzwerk mit Intellektuellen und Politikern in Paris : Annäherung und Distanz N2 - The present article examines (1) the networks that the jurist, state theorist, anthropologist and education theorist Wilhelm von Humboldt (1767-1835) established with French intellectuals and politicians during his two stays (1789, 1797-1801) in Paris and (2) the influences and receptions that were made possible by networks between Humboldt and his contacts. I am adopting the network definition formulated by Zijderveld: "a set of reciprocal, usually informal, often rather anonymous bonds between actors (individuals or collectivities), which is set up and maintained for the promotion of private interests, and usually lacks a fixed, vertical hierarchy of power. " Networks are structured as dyads, triads, sub-groups and groups. Humboldt's Paris diaries and his exchanges of letters with Schiller (1759- 1805) and Goethe (1749-1832) will be cited as sources. It will be the task of subsequent studies to establish whether any letters from Humboldt's French contacts to Humboldt (and vice versa), or any diaries that belonged to them, exist. Hence, the present article analyses the relationships between Humboldt and his contacts from Humboldt's perspective only. The results of this study may be summarised as follows: it is not surprising that the young Humboldt did not establish any networks during his first stay in Paris in August 1789. Later on, however, the relationship deepened between Humboldt and Mirabeau (1749-1791), with whom he became acquainted during the course of his visit. In his work on the theory of the state, Ideen zum einem Versuch, die Grdnzen der Wirksamkeit des Staats zu bestimmen (1792), Humboldt examined the suggestions contained in Mirabeau's reflections on reform in Travail sur l'education publique (1791). In his work, Humboldt radicalised Mirabeau's ideas with a view to ensuring that education remained free from state influence. It was only during his second journey to Paris that Humboldt established an intensive network. As there are gaps in his diary, it is likely that some information on his network is missing. Furthermore, he twice interrupted his stay in Paris to travel to Spain (Autumn 1799-Spring 1800, 1801). Of the 99 people he met, only those whom he met more than once will be taken into consideration in this article. The list of the remaining 33 people will be arranged as dyads, triads and sub-groups, depending on the frequency of the contacts. As it is only possible to speak of a network if the interacting persons are working in the same areas and share the same interests, these will be analysed. The results deserve mention here: one area is the philosophy of Kant (1724 -1804), which was decisive in providing a basis for Humboldt's educational theory. Fundamental differences between Humboldt and his contacts are evident here. These differences prompted Humboldt to study the sensualis, writings of Condillac (1715-1780), who was mentioned by Humboldt's contact partners as an antipode to Kant. A second area consists of his discourses on state theory and education. Having assimilated (as a result of his contact to Mirabeau during his first stay in Paris) Mirabeau's writing on public education in his education theory, Humboldt evidently devoted himse (-through the mediation of his contact partners-to Condorcet's (1743-1794) draftfor the entire structure of the French educational system (1792). The question is discussed whether Humboldt was subsequently influenced by Condorcet in his-Humboldt's-plan (1809) to form, step by step, the 1 -ussian education system. The result of the research into Humboldt's entire network ith French intellectuals and politicians can be summarised as follows: in the domain of philosophy (Kant, Condillac), there is no sign of the opposing parties coming together, only of differences; whereas in his own education theory and policy, Humboldt assimilated the influences of Mirabeau and (most likely) Condorcet, too: convergence and distance. Y1 - 2007 UR - http://www.informaworld.com/openurl?genre=journal&issn=0030-9230 U6 - https://doi.org/10.1080/00309230701248396 SN - 0030-9230 ER - TY - JOUR A1 - Laucht, Manfred A1 - Skowronek, Markus H. A1 - Becker, Katja A1 - Schmidt, Martin H. A1 - Esser, Günter A1 - Rietschel, Marcella A1 - Schulze, Thomas G. T1 - Interacting effects of the dopamine transporter gene and psychosocial adversity on attention-deficit/ hyperactivity disorder symptoms among 15-year-olds from high-risk community sample N2 - Context: Recent evidence suggests that gene X environment interactions could explain the inconsistent findings of association studies relating the dopamine transporter (DAT1) gene with attention-deficit/hyperactivity disorder (ADHD). 1bjective: To examine whether psychosocial adversity moderated the effect of genetic variation in DAT1 on ADHD symptoms in. adolescents from a high-risk community sample. Design: Prospective cohort study. Setting: Data were taken from the Mannheim Study of Children at Risk, an ongoing longitudinal study of the long-term outcomes of early risk factors followed up from birth on. Participants: Three hundred five adolescents (146 boys, 159 girls) participated in a follow-up assessment at age 15 years. Main Outcome Measures: Measures of ADHD symptoms according to DSM-IV were obtained using standardized structural interviews with adolescents and their parents. Psychosocial adversity was determined according to an "enriched" family adversity index as proposed by Rutter and Quinton. DNA was genotyped for the common DAT1 40-base pair (bp) variable number of tandem repeats (VNTR) polymorphism in the 3' untranslated region; 3 previously described single nucleotide polymorphisms in exon 15, intron 9, and exon 9; and a novel 30-bp VNTR polymorphism in intron 8. Results: Adolescents homozygous for the 10-repeat allele of the 40-bp VNTR polymorphism who grew up in greater psychosocial adversity exhibited significantly more inattention and hyperactivity-impulsivity than adolescents with other genotypes or who lived in less adverse family conditions (significant interaction, P=.013-017). This gene X environment interaction was also observed in individuals homozygous for the 6-repeat allele of the 30-bp VNTR polymorphism and the haplotype comprising both markers. Conclusions: These findings provide initial evidence that environmental risks as described by the Rutter Family Adversity Index moderate the impact of the DAT1 gene on ADHD symptoms, suggesting a DAT1 effect only in those individuals exposed to psychosocial adversity. Y1 - 2007 UR - http://archpsyc.ama-assn.org/ SN - 0003-990X ER - TY - JOUR A1 - Zhang, Bo A1 - Henkel, Carsten T1 - Magnetic noise around metallic microstructures N2 - We compute the local spectrum of the magnetic field near a metallic microstructure at finite temperature. Our main focus is on deviations from a plane-layered geometry for which we review the main properties. Arbitrary geometries are handled with the help of numerical calculations based on surface integral equations. The magnetic noise shows a significant polarization anisotropy above flat wires with finite lateral width, in stark contrast to an infinitely wide wire. Within the limits of a two-dimensional setting, our results provide accurate estimates for loss and dephasing rates in so-called `atom chip traps' based on metallic wires. A simple approximation based on the incoherent summation of local current elements gives qualitative agreement with the numerics, but fails to describe current correlations among neighboring objects. Y1 - 2007 UR - http://dx.doi.org/10.1063/1.2800174 U6 - https://doi.org/10.1063/1.2800174 SN - 0021-8979 ER - TY - JOUR A1 - Intravaia, Francesco A1 - Henkel, Carsten A1 - Lambrecht, Astrid T1 - Role of surface plasmons in the Casimir effect N2 - In this paper we study the role of surface plasmon modes in the Casimir effect. The Casimir energy can be written as a sum over the modes of a real cavity and one may identify two sorts of modes, two evanescent surface plasmon modes and propagative modes. As one of the surface plasmon modes becomes propagative for some choice of parameters we adopt an adiabatic mode definition where we follow this mode into the propagative sector and count it together with the surface plasmon contribution, calling this contribution ``plasmonic''. We evaluate analytically the contribution of the plasmonic modes to the Casimir energy. Surprisingly we find that this becomes repulsive for intermediate and large mirror separations. The contribution of surface plasmons to the Casimir energy plays a fundamental role not only at short but also at large distances. This suggests possibilities to taylor the Casimir force via a manipulation of the surface plasmon properties. Y1 - 2007 UR - http://dx.doi.org/10.1103/PhysRevA.76.033820 ER - TY - JOUR A1 - Henkel, Carsten T1 - Laser theory in manifest Lindblad form N2 - We discuss the laser theory for a single-mode laser with nonlinear gain. We focus in particular on a micromaser which is pumped with a dilute beam of excited atoms crossing the laser cavity. In the weak-coupling regime, an expansion in the coupling strength is developed that preserves the Lindblad form of the master equation, securing the positivity of the density matrix. This can be improved with an alternative approach, not restricted to weak coupling: the Lindblad operators are expanded in orthogonal polynomials adapted to the probability distribution for the atom-laser interaction time. Results for the photon statistics and the laser linewidth illustrate the theory. Y1 - 2007 UR - http://dx.doi.org/10.1088/0953-4075/40/12/012 SN - 0953-4075 ER - TY - JOUR A1 - Greffet, Jean-Jacques A1 - Henkel, Carsten T1 - Coherent thermal radiation N2 - The radiation emitted by a heated body is generally quoted as a typical example of incoherent radiation, in distinction to laser radiation. One is nearly isotropic, the other highly directional; one is spectrally broad, the other quasi-monochromatic. It may come as a surprise that the thermal radiation of a large number of substances is coherent, both in space and time, when it is observed at a distance from the body that is shorter than the wavelength. This behaviour can be understood within an electromagnetic approach to thermal emission. Several recent experiments have confirmed these unexpected properties. Y1 - 2007 UR - http://dx.doi.org/10.1080/00107510701690380 SN - 0010-7514 ER - TY - JOUR A1 - Weithoff, Guntram A1 - Wacker, Alexander T1 - The mode of nutrition of mixotrophic flagellates determines the food quality for their consumers Y1 - 2007 UR - http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2435.2007.01333.x/full U6 - https://doi.org/10.1111/j.1365-2435.2007.01333.x ER - TY - JOUR A1 - Lanca, M. C. A1 - Wirges, Werner A1 - Neagu, Eugen R. A1 - Gerhard, Reimund A1 - Marat-Mendes, José Narciso T1 - Influence of humidity on the electrical charging properties of cork agglomerates N2 - Cork is a natural cellular and electrically insulating material which may have the capacity to store electric charges on or in its cell walls. Since natural cork has many voids, it is difficult to obtain uniform samples with the required dimensions. Therefore, a more uniform material, namely commercial cork agglomerate, usually used for floor and wall coverings, is employed in the present study. Since we know from our previous work that the electrical properties of cork are drastically affected by absorbed and adsorbed water, samples were protected by means of different polymer coatings (applied by spin-coating or soaking). Corona charging and isothermal charging and discharging currents were used to study the electrical trapping and detrapping capabilities of the samples. A comparison of the results leads to the conclusion that the most promising method for storing electric charges in this cellular material consists of drying and coating or soaking with a hydrophobic, electrically insulating polymer such as polytetraflouroethylene (Teflon (R)). (c) 2007 Elsevier B.V. All rights reserved. Y1 - 2007 UR - http://www.sciencedirect.com/science/journal/00223093 U6 - https://doi.org/10.1016/j.jnoncrysol.2007.03.037 SN - 0022-3093 ER - TY - JOUR A1 - Kliegl, Reinhold A1 - Risse, Sarah A1 - Laubrock, Jochen T1 - Preview benefit and parafoveal-on-foveal effects from word n+2 N2 - Using the gaze-contingent boundary paradigm with the boundary placed after word n, the experiment manipulated preview of word n + 2 for fixations on word n. There was no preview benefit for 1st-pass reading on word n + 2, replicating the results of K. Rayner, B. J. Juhasz, and S. J. Brown (2007), but there was a preview benefit on the 3- letter word n + 1, that is, after the boundary but before word n + 2. Additionally, both word n + 1 and word n + 2 exhibited parafoveal-on-foveal effects on word n. Thus, during a fixation on word n and given a short word n + 1, some information is extracted from word n + 2, supporting the hypothesis of distributed processing in the perceptual span. Y1 - 2007 UR - http://www.apa.org/pubs/journals/xhp/ U6 - https://doi.org/10.1037/0096-1523.33.5.1250 SN - 0096-1523 ER - TY - JOUR A1 - Kleinpeter, Erich T1 - Syntheses and conformational analyses of mono- and trans-1,4-dialkoxy substituted cyclohexanes : the steric substituent/skeleton interactions N2 - Mono- and trans-1,4-dialkoxy substituted cyclohexanes (alkyl=Me, Et, i-Pr, t-Bu) were prepared using the solvomercuration-demercuration (SM-DM) procedure. The axialaxial and axial,axialequatorial, equatorial conformational equilibria of the products were studied by low temperature 1H and 13C NMR spectroscopy in CD2Cl2. The structures and relative energies of the participating conformers were calculated at both the B3LYP (6-311G*//6-311+G*) and MP2 (6-311+G*//6-311G*) levels of theory. In the case of DFT, good correlations of ;Gocalcd versus ;Goexptl were obtained. Both the structures and the energy differences of the conformers have been discussed with respect to established models of conformational analysis, viz. steric and hyperconjugative interactions. In addition, 1JH,C coupling constants were considered with respect to the hyperconjugation present. Y1 - 2007 UR - http://www.sciencedirect.com/science/journal/00404020 U6 - https://doi.org/10.1016/j.tet.2007.06.094 SN - 0040-4020 ER - TY - JOUR A1 - Kleinpeter, Erich A1 - Klod, Sabrina A1 - Koch, Andreas T1 - Visualization of through space NMR shieldings of aromatic and anti-aromatic molecules and a simple means to compare and estimate aromaticity N2 - Through space NMR shieldings of aromatic (benzene, mono-substituted and annelated benzenes, ferrocene, [14]- and [18]-annulenes, phenylenes and tetra- to heptahelicene) and anti-aromatic molecules (cyclobutadiene and pentalene) were assessed by ab initio molecular-orbital calculations. Employing the nucleus-independent chemical shifts (NICS) concept, these through space NMR shieldings were visualized as iso-chemical-shielding surfaces (ICSSs) and can be applied quantitatively to determine the stereochemistry of proximal nuclei. In addition, the distances in Å at ICSS values of ±0.1 ppm in-plane and perpendicular-to-center of the aromatic ring system were employed as a simple means to compare and estimate qualitatively the aromaticity of the systems at hand. Y1 - 2007 UR - http://www.sciencedirect.com/science/journal/01661280 U6 - https://doi.org/10.1016/j.theochem.2007.02.049 SN - 0166-1280 ER - TY - JOUR A1 - Kampe, Heike A1 - König-Rinke, Marie A1 - Petzoldt, Thomas A1 - Benndorf, Jürgen T1 - Direct effects of Daphnia-grazing, not infochemicals, mediate a shift towards large inedible colonies of the gelatinous green alga Sphaerocystis schroeteri N2 - The influence of Daphnia galeata x hyalina grazing and of infochemicals released by the daphnids on the colony size and growth rate of the colonial gelatinous green alga Sphaerocystis schroeteri (Chlorococcales) was investigated in laboratory batch experiments run for 96 h. High zooplankton grazing pressure was exerted by a final concentration of 100 daphnids L-1 in the Daphnia treatments. Infochemicals were obtained by filtration (0.2 µm) of water from D. galeata x hyalina cultures (200 ind. L-1 exposed for 24 h). This filtrate was added to the S. schroeteri cultures in two concentrations corresponding to 7 and 50 daphnids L-1, respectively. The growth rate of S. schroeteri was neither affected significantly by direct Daphnia grazing nor by the presence of Daphnia infochemicals in comparison to the control. However, the portion of inedible S. schroeteri colonies (diameter > 50 µm) increased under direct grazing pressure, whereas the Daphnia infochemicals did not influence the colony size significantly. We conclude that the shift in colony size by direct zooplankton grazing denotes an effective defence mechanism against size selective feeding for colonial gelatinous green algae. This effective defence in combination with unchanged growth rates of the larger colonies (under non-limiting nutrient and light conditions) falsifies the assumption of a trade-off between minimising grazing losses and maximising growth by optimising the colony size. Y1 - 2007 UR - http://www.sciencedirect.com/science/journal/00759511 U6 - https://doi.org/10.1016/j.limno.2007.01.001 SN - 0075-9511 ER - TY - JOUR A1 - Houlahan, Jeff E. A1 - Currie, David J. A1 - Cottenie, Karl A1 - Cumming, Graeme S. A1 - Ernest, S. K. Morgan A1 - Findlay, C. Scott A1 - Fuhlendorf, Samuel D. A1 - Gaedke, Ursula A1 - Legendre, Pierre A1 - Magnuson, John J. A1 - McArdle, Brian H. A1 - Muldavin, Esteban H. A1 - Noble, David A1 - Russell, Robert A1 - Stevens, Richard D. A1 - Willis, Trevor J. A1 - Woiwod, Ian P. A1 - Wondzell, Steve M. T1 - Compensatory dynamics are rare in natural ecological communities N2 - In population ecology, there has been a fundamental controversy about the relative importance of competition- driven (density-dependent) population regulation vs. abiotic influences such as temperature and precipitation. The same issue arises at the community level; are population sizes driven primarily by changes in the abundances of cooccurring competitors (i.e., compensatory dynamics), or do most species have a common response to environmental factors? Competitive interactions have had a central place in ecological theory, dating back to Gleason, Volterra, Hutchison and MacArthur, and, more recently, Hubbell's influential unified neutral theory of biodiversity and biogeography. If competitive interactions are important in driving year-to-year fluctuations in abundance, then changes in the abundance of one species should generally be accompanied by compensatory changes in the abundances of others. Thus, one necessary consequence of strong compensatory forces is that, on average, species within communities will covary negatively. Here we use measures of community covariance to assess the prevalence of negative covariance in 41 natural communities comprising different taxa at a range of spatial scales. We found that species in natural communities tended to covary positively rather than negatively, the opposite of what would be expected if compensatory dynamics were important. These findings suggest that abiotic factors such as temperature and precipitation are more important than competitive interactions in driving year-to-year fluctuations in species abundance within communities. Y1 - 2007 UR - http://www.pnas.org/ U6 - https://doi.org/10.1073/pnas.0603798104 SN - 0027-8424 ER - TY - JOUR A1 - Hom, Erika A1 - Blomeyer, Dorothea A1 - Schmidt, Martin H. A1 - Esser, Günter A1 - Laucht, Manfred T1 - Jugendliche die frühzeitig rauchen und trinken : eine Risikogruppe? N2 - Epidemiological studies have reported elevated rates of legal drug consumption among adolescents in Germany. The aim of this study was to ascertain patterns and parameters of smoking and drinking in early-users as well as to examine possible determinants of risky patterns of use. Participants were from a longitudinal study of a birth cohort of 384 children at risk. Assessments of adolescent drug consumption as well as of individual and social determinants were obtained at age 15. Adolescents drinking and smoking during the same period (past four weeks) were characterized by more excessive and impulsive consumption and by higher rates of cannabis use. No specific determinants of concurrent use could be found. These findings suggest that adolescents displaying early concurrent tobacco and alcohol use may be at higher risk for substance use problems and should be targeted by prevention programs. Y1 - 2007 UR - http://psycontent.metapress.com/content/1661-4747 U6 - https://doi.org/10.1024/1661-4747.55.3.155 SN - 1661-4747 ER - TY - JOUR A1 - Halámek, Jan A1 - Wollenberger, Ursula A1 - Stöcklein, Walter F. M. A1 - Warsinke, Axel A1 - Scheller, Frieder W. T1 - Signal amplification in immunoassays using labeling via boronic acid binding to the sugar moiety of immunoglobulin G : proof of concept for glycated hemoglobin N2 - A novel electrochemical immunoassay based on the multiple affinity labeling of the indicator antibody with an electro-active tag is presented. The concept is illustrated for the determination of the glycated hemoglobin HbA1c in hemoglobin samples. Hemoglobin is adsorbed to the surfactant-modified surface of a piezoelectric quartz crystal. Whereas the quartz crystal nanobalance is used to validate the total Hb binding, the HbA1c on the sensor surface is recognized by an antibody and quantified electrochemically after the sugar moieties of the antibody have been labeled in-situ with ferroceneboronic acid. The sensitivity of this sensor is about threefold higher than the sensitivity of a hemoglobin sensor, where the ferroceneboronic acid is bound directly to HbA1c. Y1 - 2007 UR - http://www.informaworld.com/openurl?genre=journal&issn=0003-2719 U6 - https://doi.org/10.1080/00032710701327096 SN - 0003-2719 ER - TY - JOUR A1 - Halámek, Jan A1 - Wollenberger, Ursula A1 - Stöcklein, Walter F. M. A1 - Scheller, Frieder W. T1 - Development of a biosensor for glycated hemoglobin N2 - The development of an electrochemical piezoelectric sensor for the detection of glycated hemoglobin is presented. The total hemoglobin (Hb) content is monitored with a mass-sensitive quartz crystal modified with surfactants, and the glycated fraction of the immobilized Hb is determined by subsequent voltarnmetric measurement of the coupled ferroceneboronic acid. Different modifications of the sensor were tested for their hemoglobin binding ability. Deoxycholate (DOCA) was found to be the most suitable among the examined modifiers. Piezoelectric quartz crystals with gold electrodes were modified with DOCA by covalent binding to a pre-formatted 4-aminothiophenol monolayer. The properties of the Hb binding to DOCA and the pH effect on this interaction were studied. In the proposed assay for glycated hemoglobin at first an Hb sample is incubated with ferroceneboronic acid (FcBA), which binds to the fructosyl residue of the glycated Hb. Then this preincubated Hb sample is allowed to interact with the DOCA-modified piezoelectric quartz crystal. The binding is monitored by quartz crystal nanobalance QCN). The amount of FcBA present on the sensor surface is determined by square wave voltammetry. The binding of FcBA results in well-defined peaks with an EO' of +200 mV versus Ag/AgC1 (1 M KC1). The peak height depends on the degree of glycated Hb in the sample ranging from 0% to 20% of total Hb. The regeneration of the sensing surface is achieved by pepsin digestion of the deposited Hb. Thus the sensor can be re-used more than 30 times. Y1 - 2007 UR - http://www.sciencedirect.com/science/journal/00134686 U6 - https://doi.org/10.1016/j.electacta.2007.03.059 SN - 0013-4686 ER - TY - JOUR A1 - Haebel, Sophie A1 - Bahrke, Sven A1 - Peter, Martin G. T1 - Quantitative sequencing of complex mixtures of heterochitooligosaccharides by vMALDI-linear ion trap mass spectrometry N2 - Heterochitooligosaccharides possess interesting biol. properties. Isobaric mixts. of such linear heterochitooligosaccharides can be obtained by chem. or enzymic degrdn. of chitosan. However, the sepn. of such mixts. is a challenging anal. problem which is so far unresolved. It is shown that these isobaric mixts. can be sequenced and quantified simultaneously using std. derivatization and multistage tandem mass spectrometric techniques. A linear ion trap mass spectrometer equipped with a vacuum matrix-assisted laser desorption ionization (vMALDI) source is used to perform MS2 as well as MS3 expts. [on SciFinder (R)]. Y1 - 2007 UR - http://pubs.acs.org/loi/ancham U6 - https://doi.org/10.1021/Ac062254u SN - 0003-2700 ER - TY - JOUR A1 - Gronau, Norbert A1 - Fröming, Jane A1 - Schmid, Simone A1 - Rüssbüldt, Uwe T1 - Approach for requirement oriented team building in industrial processes N2 - This contribution presents an approach for requirement oriented team building in industrial processes like product development. This will be based on the knowledge modelling and description language (KMDL(R)) that enables the modelling and analysis of knowledge intensive business processes. First the basic elements of the modelling technique are described, presenting the concept and the description language. Furthermore it is shown how the KMDL(R) process models can be used as a basis for the team building component. Therefore, an algorithm was developed that is able to propose a team composition for a specific task by analyzing the knowledge and skills of the employees, which will be contrasted to the process requirements. This can be used as guidance for team building decisions. Y1 - 2007 UR - http://www.sciencedirect.com/science/journal/01663615 U6 - https://doi.org/10.1016/j.compind.2006.09.011 ER -