The macrobenthos in the red algae zone of Kiel Bay (Western Baltic)

The macrofauna of the red algal zone of Kiel Bay is quantitatively investigated for the first time. 109 species were found of which 68 can be considered as genuine inhabitants of the phytal zone. The classification of the phytal fauna according to locomotory and feeding type, their abundance and biomass relative to water depth and their value as fish food were investigated in more detail

Editorial: Women in plant science:redox biology of plant abiotic stress 2022

MR-P thanks Spanish Ministry of Science and Innovation for Financial support (PID2021-122280NB-I00). CF thanks BBSRC/GCRF (UK) for Financial support (BB/T008865/1). LG thanks Agritech National Research Center (European Union Next-Generation, EU), Piano Nazionale di Ripresa e Resilienza (PNRR) —Missione 4 Componente 2, Investimento 1.4—D.D. 1032 17/06/ 2022, CN00000022)

På sporet.... - af Verdens første store pattedyr

Da de store dinosaurer uddøde ved Kridt/Tertiær-grænsen for 65 millioner år siden, fik pattedyrene pludselig frit spil til at udvikle sig og kolonisere landjorden. På den norske øgruppe Svalbard findes forstenede fodspor fra de allertidligste store pattedyr, en mærkelig gruppe kaldet pantodonter

Time--delay autosynchronization of the spatio-temporal dynamics in resonant tunneling diodes

The double barrier resonant tunneling diode exhibits complex spatio-temporal patterns including low-dimensional chaos when operated in an active external circuit. We demonstrate how autosynchronization by time--delayed feedback control can be used to select and stabilize specific current density patterns in a noninvasive way. We compare the efficiency of different control schemes involving feedback in either local spatial or global degrees of freedom. The numerically obtained Floquet exponents are explained by analytical results from linear stability analysis.Comment: 10 pages, 16 figure

From Producer Innovation to User and Open Collaborative Innovation

In this paper we assess the economic viability of innovation by producers relative to two increasingly important alternative models: innovations by single user individuals or firms, and open collaborative innovation. We analyze the design costs and architectures and communication costs associated with each model. We conclude that both innovation by individual users and open collaborative innovation increasingly compete with and may displace producer innovation in many parts of the economy. We explain why this represents a paradigm shift with respect to innovation research, policymaking, and practice. We discuss important implications and offer suggestions for further research

Programm

Dieser Band dokumentiert die Reden, welche am 7. Juli 2006 in Hamburg anlässlich der feierlichen Eröffnung des Carl Friedrich von Weizsäcker-Zentrum für Naturwissenschaft und Friedensforschung, gehalten wurden. Als Hauptredner waren Alyson J. K. Bailes, die Leiterin des Stockholmer Friedensforschungsinstitutes (SIPRI), Staatsminister a.D., Prof. Egon Bahr, ehemaliger Leiter des Hamburger Friedensforschungsinstituts (IFSH), Prof. Ernst Ulrich von Weizsäcker, ein Sohn des Namensgebers des ZNF, und Prof. Wolfgang Panofsky aus Stanford, USA geladen. Mit der Gründung des Zentrums an der Universität Hamburg, dessen Leitung Prof. Dr. Martin Kalinowski obliegt, hat die naturwissenschaftliche Friedensforschung eine bundesweit einmalige institutionelle Verankerung erhalten. Zusammen mit dem Institut für Friedensforschung und Sicherheitspolitik (IFSH) in Hamburg entsteht ein inter- und multidisziplinär ausgerichteter Forschungsverbund, durch den neue Möglichkeiten eröffnet werden, die Wechselwirkung von Naturwissenschaften, Konflikten und internationaler Sicherheit vor dem Hintergrund der Leitbilder Frieden und Nachhaltigkeit zu erforschen und diese auch in die Ausbildung von Naturwissenschaftlern zu integrieren.This volume documents the speeches given on July 7, 2006 in Hamburg on the occasion of the ceremonial opening of the Carl Friedrich von Weizsäcker Center for Science and Peace Research (Zentrum für Naturwissenschaft und Friedensforschung, ZNF). The keynote speakers were Alyson J. K. Bailes, Head of the Stockholm Peace Research Institute (SIPRI), former Minister of State, Prof. Egon Bahr, former Head of the Hamburg Peace Research Institute (scientific peace research has gained a unique institutional foothold in Germany. Together with the Institut für Friedensforschung und Sicherheitpolitik, IFSH), Prof. Ernst Ulrich von Weizsäcker, a son of the namesake of the ZNF, and Prof. Wolfgang Panofsky from Stanford, USA. With the founding of the Centre at the University of Hamburg, headed by Prof. Dr. Martin Kalinowski, scientific peace research has gained a unique institutional foothold in Germany. Together with the IFSH in Hamburg an inter- and multidisciplinary research network is being established which will open up new opportunities to explore the interaction of natural sciences, conflicts and international security against the background of the guiding principles of peace and sustainability and to integrate them into the training of natural scientists

Survival in amoeba: a major selection pressure on the presence of bacterial copper and zinc resistance determinants?: identification of a "copper pathogenicity island"

The presence of metal resistance determinants in bacteria usually is attributed to geological or anthropogenic metal contamination in different environments or associated with the use of antimicrobial metals in human healthcare or in agriculture. While this is certainly true, we hypothesize that protozoan predation and macrophage killing are also responsible for selection of copper/zinc resistance genes in bacteria. In this review, we outline evidence supporting this hypothesis, as well as highlight the correlation between metal resistance and pathogenicity in bacteria. In addition, we introduce and characterize the "copper pathogenicity island" identified in Escherichia coli and Salmonella strains isolated from copper- and zinc-fed Danish pigs