@inproceedings{LaschewskyHerfurthMiasnikovaetal.2012, author = {Laschewsky, Andr{\´e} and Herfurth, Christoph and Miasnikova, Anna and Wieland, Christoph and Wischerhoff, Erik and Gradzielski, Michael and de Molina, Paula Malo and Weiss, Jan}, title = {Stars and blocks tailoring polymeric rheology modifiers for aqueous media by controlled free radical polymerization}, series = {Abstracts of papers : joint conference / The Chemical Institute of Cananda, CIC, American Chemical Society, ACS}, volume = {244}, booktitle = {Abstracts of papers : joint conference / The Chemical Institute of Cananda, CIC, American Chemical Society, ACS}, publisher = {American Chemical Society}, address = {Washington}, issn = {0065-7727}, pages = {1}, year = {2012}, language = {en} } @misc{AskinEmmerichFritscheGoppeletal.2012, author = {Askin, Elif and Emmerich-Fritsche, Angelika and Goppel, Anna and Hemmerling, Mario and Kapaun, Nina and Lohmann, Georg and M{\"u}ller, Sebastian and Niederberger, Andreas and Pabel, Katharina and Putzer, Max and Roth-Isigkeit, David and Seidler, Christoph and Tiedemann, Paul and Vasel, J. Justus and Weiß, Norman}, title = {MenschenRechtsMagazin : Informationen | Meinungen | Analysen}, volume = {17}, number = {2}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1434-2820}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-62122}, year = {2012}, abstract = {Aus dem Inhalt: - Themenschwerpunkt: Menschenrechte und Staatsb{\"u}rgerschaft - Gibt es Menschenrechte ohne B{\"u}rgerschaft? - Menschenw{\"u}rde und Staatsb{\"u}rgerschaft - Die General Comments des Menschenrechtsausschusses der Vereinten Nationen - ein Beitrag zur Rechtsentwicklung im V{\"o}lkerrecht - Politische Selbstbestimmung als Menschenrecht und im V{\"o}lkerrecht - Libyen und der von außen unterst{\"u}tzte Systemwechsel}, language = {de} } @book{HoffmeisterPapenfussRohloffetal.2001, author = {Hoffmeister, Frank and Papenfuß, Anja and Rohloff, Christoph and Tietje, Christian and Weiß, Norman}, title = {Globale Probleml{\"o}sungen in der Bew{\"a}hrungsprobe}, series = {Potsdamer UNO-Konferenzen}, journal = {Potsdamer UNO-Konferenzen}, number = {1}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {3-00-007657-3}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-69512}, publisher = {Universit{\"a}t Potsdam}, pages = {80}, year = {2001}, abstract = {Die erste Konferenz im Dezember 1999, die Gr{\"u}ndungskonferenz, m{\"u}ndete nach einer intensiven Diskussion {\"u}ber die Situation in der deutschen UN-Forschung in die Gr{\"u}ndung des Forschungskreises Vereinte Nationen. Dieser hat sich vor allem die bessere Kommunikation untereinander, die F{\"o}rderung des interdisziplin{\"a}ren Dialogs und des wissenschaftlichen Nachwuchses in der UN-Forschung zum Ziel gesetzt. Die zweite Konferenz des Forschungskreises fand am 30. Juni und 1. Juli 2000, ebenfalls in den R{\"a}umen der Juristischen Fakult{\"a}t der Universit{\"a}t Potsdam, im Vorfeld einer wichtigen UN-Konferenz, n{\"a}mlich des Milleni-um-Gipfels im September 2000 in New York statt. Sie widmete sich einer kritischen Bilanz der Rolle der Vereinten Nationen bei der Suche nach L{\"o}sungen f{\"u}r die globalen Probleme, in ihren Hauptaufgabengebieten Friedenssicherung, Demokratisierung, Schutz der Menschenrechte und F{\"o}rderung der wirtschaftlichen und sozialen Entwicklung. Die in dieser Brosch{\"u}re ver{\"o}ffentlichten Referate der zweiten Konferenz spiegeln zusammen mit den Diskussionen, die zusammenfassend dargestellt werden, die großen Herausforderungen, aber auch die Chancen der Vereinten Nationen bei der L{\"o}sung der globalen Probleme, vor die sich die V{\"o}lker der Welt zum Beginn des neuen Jahrtausend gestellt sehen.}, language = {de} } @misc{AnlaufLayusFreweretal.2008, author = {Anlauf, Lena and Layus, Rosario Figari and Frewer, Andreas and Furtmayr, Holger and Georgas, Margarita and Golovnenkov, Pavel and Heß, Asmus and Kintzel, Yvonne and Kotzur, Markus and Kr{\´a}sa, Kerstin and Menke, Christoph and Meyer, Gunda and Moewes, Udo and Reiß, Tim and Rothhaar, Markus and Weiß, Norman}, title = {MenschenRechtsMagazin : Informationen | Meinungen | Analysen}, volume = {13}, number = {2}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1434-2820}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-36208}, year = {2008}, abstract = {Themenschwerpunkt: Medizin und Menschenrechte - 60 Jahre Allgemeine Erkl{\"a}rung der Menschenrechte - Reflexionen zur Entstehungsgeschichte, Ideengeschichte und Wirkungsgeschichte - Zum Wohle des Vaterlands - Zur „Erkl{\"a}rung zu Menschenrechten und Menschenw{\"u}rde" des World Russian People´s Council - Bericht {\"u}ber die Arbeit des Menschenrechtsausschusses der Vereinten Nationen im Jahre 2007 - Teil II}, language = {de} } @article{WeissWilkens1997, author = {Weiss, Christoph and Wilkens, Martin}, title = {Particle number counting statistics in ideal Bose gases}, year = {1997}, abstract = {We discuss the exact particle number counting statistics of degenerate ideal Bose gases in the microcanonical, canonical, and grand-canonical ensemble, respectively, for various trapping potentials. We then invoke the Maxwell's Demon ensemble [P. Navez et al., Phys. Rev. Lett.(1997)] and show that for large total number of particles the root-mean-square fluctuation of the condensate occupation scales delta n0 proportional to [T/Tc]r Ns with scaling exponents r=3/2, s=1/2 for the 3D harmonic oscillator trapping potential, and r=1, s=2/3 for the 3D box. We derive an explicit expression for r and s in terms of spatial dimension D and spectral index sigma of the single- particle energy spectrum. Our predictions also apply to systems where Bose-Einstein condensation does not occur. We point out that the condensate fluctuations in the microcanonical and canonical ensemble respect the principle of thermodynamic equivalence.}, language = {en} } @article{WilkensWeiss1997, author = {Wilkens, Martin and Weiss, Christoph}, title = {Particle number fluctuations in an ideal Bose gas}, year = {1997}, abstract = {We analyse occupation number fluctuations of an ideal Bose gas in a trap which is isolated from theenvironment with respect to particle exchange (canonical ensemble). We show that in contrast to the predictions of thegrand- canonical ensemble, the counting statistics of particles in the trap ground state changes from monotonously decreasing above the condensation temperature to single-peaked below that temperature. For the exactly solvable case of a harmonic oscillator trapping potential in one spatial dimension we extract a Landau-Ginzburg functional which - despite the non- interacting nature of the system - displays the characteristic behaviour of a weakly interacting Bose gas. We also compare our findings with the usual treatment which is base on the grand-canonical ensemble. We show that for an ideal Bose gas neither are the grand-canonical and canonical ensemble thermodynamically equivalent, nor the grand-canonical ensemble can be viewed as a small system in diffusive contact with a particle reservoir.}, language = {en} } @article{WeissBoettcherLaschewsky2011, author = {Weiss, Jan and B{\"o}ttcher, Christoph and Laschewsky, Andr{\´e}}, title = {Self-assembly of double thermoresponsive block copolymers end-capped with complementary trimethylsilyl groups}, series = {Soft matter}, volume = {7}, journal = {Soft matter}, number = {2}, publisher = {Royal Society of Chemistry}, address = {Cambridge}, issn = {1744-683X}, doi = {10.1039/c0sm00531b}, pages = {483 -- 492}, year = {2011}, abstract = {A set of double thermoresponsive diblock copolymers poly(N-n-propylacrylamide)-block-poly(N-ethylacrylamide) (PNPAM-b-PNEAM) was synthesised by sequential reversible addition-fragmentation chain transfer (RAFT) polymerisations. Using a twofold trimethylsilyl (TMS)-labeled RAFT-agent, the relative size of the two blocks was varied. While soluble as unimers below 15 degrees C, all copolymers exhibited thermally induced two-step self-assembly in water, due to distinct lower critical solution temperature (LCST) phase transitions of PNPAM (around 20 degrees C) and PNEAM (around 70 degrees C). Their temperature-dependent self-organisation in dilute aqueous solution was studied by turbidimetry, dynamic light scattering, transmission electron microscopy, and (1)H NMR spectroscopy. The copolymers show distinct, two-step self-organisation behaviour with respect to transition temperatures, aggregate type and size, which can be correlated to the relative lengths of the low and high LCST blocks. For polymers having short blocks with low LCST, the first thermal transition induces the formation of individual micelles. Further heating above the second thermal transition results reversibly either in a shrink of the micelle size or in aggregation of the micelles, with hydrodynamic diameters below 250 nm. In contrast in the case of polymers having a long block with low LCST, the first thermal transition already leads to clusters of micelles, while the second thermal transition makes the clusters shrink. Noteworthy, the twofold TMS-labeled end groups report not only on the molar masses of the polymers, but can simultaneously serve as NMR-probes for the self-assembly process. The signal of the TMS-aryl end group displays a reversible temperature dependent, two-step splitting that is indicative of the self-organisation of the block copolymers.}, language = {en} } @article{HerfurthVollBulleretal.2012, author = {Herfurth, Christoph and Voll, Dominik and Buller, Jens and Weiss, Jan and Barner-Kowollik, Christopher and Laschewsky, Andr{\´e}}, title = {Radical addition fragmentation chain transfer (RAFT) polymerization of ferrocenyl (meth)acrylates}, series = {Journal of polymer science : A, Polymer chemistry}, volume = {50}, journal = {Journal of polymer science : A, Polymer chemistry}, number = {1}, publisher = {Wiley-Blackwell}, address = {Malden}, issn = {0887-624X}, doi = {10.1002/pola.24994}, pages = {108 -- 118}, year = {2012}, abstract = {We report on the controlled free radical homopolymerization of 1-ferrocenylethyl acrylate as well as of three new ferrocene bearing monomers, namely 4-ferrocenylbutyl acrylate, 2-ferrocenylamido-2-methylpropyl acrylate, and 4-ferrocenylbutyl methacrylate, by the RAFT technique. For comparison, the latter monomer was polymerized using ATRP, too. The ferrocene containing monomers were found to be less reactive than their analogues free of ferrocene. The reasons for the low polymerizability are not entirely clear. As the addition of free ferrocene to the reaction mixture did not notably affect the polymerizations, sterical hindrance by the bulky ferrocene moiety fixed on the monomers seems to be the most probable explanation. Molar masses found for 1-ferrocenylethyl acrylate did not exceed 10,000 g mol(-1), while for 4-ferrocenylbutyl (meth) acrylate molar masses of 15,000 g mol(-1) could be obtained. With PDIs as low as 1.3 in RAFT polymerization of the monomers, good control over the polymerization was achieved.}, language = {en} } @misc{AlleweldtBuytenGunnarssonetal.2015, author = {Alleweldt, Ralf and Buyten, Bijan and Gunnarsson, Logi and Klein, Eckart and Kotzur, Markus and Lammers, Lutz and Morris-Take, Berit Kristina and N{\"a}geler, Pascal and Payandeh, Mehrdad and Steiner, Christoph and Weiß, Norman}, title = {MenschenRechtsMagazin : Informationen | Meinungen | Analysen}, volume = {19}, number = {2}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1434-2820}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-78417}, year = {2015}, abstract = {Aus dem Inhalt: Belastung und Arbeitsf{\"a}higkeit des Europ{\"a}ischen Gerichtshofs f{\"u}r Menschenrechte: neuere Entwicklungen - Extraterritoriale Anwendbarkeit der Rassendiskriminierungskonvention - Globale Verantwortlichkeit oder traditionelles Souver{\"a}nit{\"a}tsdenken - Gr{\"u}nde f{\"u}r die Haltung zur "Responsibility to Protect" von nicht-westlichen Staaten}, language = {de} }