@article{AbelCelaniErgnietal.2002, author = {Abel, Markus and Celani, A. and Ergni, V. and Vulpiani, A.}, title = {Front speed enhancement in cellular flows}, issn = {1054-1500}, year = {2002}, language = {en} } @article{AbrahamKraheDominicetal.2002, author = {Abraham, Charles and Krah{\´e}, Barbara and Dominic, Robert and Fritsche, Immo}, title = {Do health promotion messages target cognitive and behavioural correlates of condom use? : a content analysis of safer sex promotion leaflets in two countries}, issn = {1359-107X}, year = {2002}, language = {en} } @book{Addison2002, author = {Addison, John T.}, title = {Principles of Market-Oriented Labor Market Policies}, series = {Diskussionsbeitrag / Europ{\"a}isches Institut f{\"u}r internationale Wirtschaftsbeziehungen, Potsdam}, volume = {91}, journal = {Diskussionsbeitrag / Europ{\"a}isches Institut f{\"u}r internationale Wirtschaftsbeziehungen, Potsdam}, publisher = {Univ.}, address = {Potsdam}, issn = {1430-5445}, pages = {26 S.}, year = {2002}, language = {en} } @book{Agata2002, author = {Agata, Koichiro}, title = {Internet, economic growth and globalization}, series = {Diskussionsbeitrag / Europ{\"a}isches Institut f{\"u}r internationale Wirtschaftsbeziehungen, Potsdam}, volume = {101}, journal = {Diskussionsbeitrag / Europ{\"a}isches Institut f{\"u}r internationale Wirtschaftsbeziehungen, Potsdam}, publisher = {Univ.}, address = {Potsdam}, issn = {1430-5445}, pages = {15 S.}, year = {2002}, language = {en} } @article{AhlersPikovskij2002, author = {Ahlers, Volker and Pikovskij, Arkadij}, title = {Critical Properties of the Synchronization Transition in Space-Time Chaos}, year = {2002}, abstract = {We study two coupled spatially extended dynamical systems which exhibit space-time chaos. The transition to the synchronized state is treated as a nonequilibrium phase transition, where the average synchronization error is the order parameter. The transition in one-dimensional systems is found to be generically in the universality class of the Kardar- Parisi-Zhang equation with a growth-limiting term ("bounded KPZ"). For systems with very strong nonlinearities in the local dynamics, however, the transition is found to be in the universality class of directed percolation.}, language = {en} } @book{AlbeverioDemuthSchroheetal.2002, author = {Albeverio, Sergio and Demuth, Michael and Schrohe, Elmar and Schulze, Bert-Wolfgang}, title = {Parabolicity, volterra calculus, and conical singularities : a volume of advances in partial differential equations}, series = {Operator theory : advances and applications}, volume = {138}, journal = {Operator theory : advances and applications}, publisher = {Birkh{\"a}user Verl.}, address = {Basel}, isbn = {3-7643-6906-x}, pages = {358 S.}, year = {2002}, language = {en} } @article{AlbusGardinerIlluminatietal.2002, author = {Albus, Alexander P. and Gardiner, Simon A. and Illuminati, Fabrizio and Wilkens, Martin}, title = {Quantum field theory of dilute homogeneous Bose-Fermi-mixtures at zero temperature : general formalismand beyond mean-field corrections}, year = {2002}, abstract = {We consider a dilute homogeneous mixture of bosons and spin-polarized fermions at zero temperature. We first construct the formal scheme for carrying out systematic perturbation theory in terms of single particle Green's functions. We introduce a new relevant object, the renormalized boson-fermion T-matrix which we determine to second order in the boson-fermion s-wave scattering length. We also discuss how to incorporate the usual boson-boson T-matrix in mean-field approximation to obtain the total ground state properties of the system. The next order term beyond mean- field stems from the boson-fermion interaction and is proportional to \$a_{scriptsize BF}k_{scriptsize F}\$. The total ground-state energy-density reads \$E/V =epsilon_{scriptsize F} + epsilon_{scriptsize B} + (2pihbar^{2}a_{ m BF}n_{scriptsize B}n_{scriptsize F}/m) [1 + a_{scriptsize BF}k_{scriptsize F}f(delta)/pi]\$. The first term is the kinetic energy of the free fermions, the second term is the boson-boson mean-field interaction, the pre-factor to the additional term is the usual mean-field contribution to the boson-fermion interaction energy, and the second term in the square brackets is the second-order correction, where \$f(delta)\$ is a known function of \$delta= (m_{scriptsize B} - m_{scriptsize F})/(m_{scriptsize B} + m_{scriptsize F})\$. We discuss the relevance of this new term, how it can be incorporated into existing theories of boson-fermion mixtures, and its importance in various parameter regimes, in particular considering mixtures of \$^{6}\$Li and \$^{7}\$Li and of \$^{3}\$He and \$^{4}\$He.}, language = {en} } @article{AlbusGiorginiIlluminatietal.2002, author = {Albus, Alexander P. and Giorgini, S. and Illuminati, Fabrizio and Viverit, L.}, title = {Critical temperature of Bose-Einstein condensation in trapped atomic Bose-Fermi mixtures}, year = {2002}, abstract = {We calculate the shift in the critical temperature of Bose-Einstein condensation for a dilute Bose-Fermi mixture confined by a harmonic potential, to lowest order in both the Bose-Bose and Bose-Fermi coupling constans. The relativ importance of the effect on the critical temperature of the boson-fermion interactions is investigated as a function of the parameters of mixture. The possible relevance of the shift of the transition temperature in current experiments on trapped Bose-Fermi mixtures is discussed.}, language = {en} } @article{AlcaldeMediavillaMoreauetal.2002, author = {Alcalde, D. and Mediavilla, E. and Moreau, O. and De Rop, Y. and Barrena, R. and Gil-Merino, Rodrigo and McLeod, B. A. and Motta, V. and Oscoz, Alejandro and Serra-Ricart, M.}, title = {QSO 2237+0305 VR light curves from Gravitational Lenses International Time Project optical monitoring}, year = {2002}, abstract = {We present VR observations of QSO 2237+0305 conducted by the Gravitational Lensing International Time Project collaboration from 1999 October 1 to 2000 February 3. The observations were made with the 2.56 m Nordic Optical Telescope at Roque de los Muchachos Observatory, La Palma (Spain). The point-spread function (PSF) fitting method and an adapted version of the ISIS subtraction method have been used to derive the VR light curves of the four components (A-D) of the quasar. The mean errors range in the intervals 0.01-0.04 mag (PSF fitting) and 0.01-0.02 mag (ISIS subtraction), with the faintest component (D) having the largest uncertainties. We address the relatively good agreement between the A and D light curves derived using different filters, photometric techniques, and telescopes. The new VR light curves of component A extend the time coverage of a high-magnification microlensing peak, which was discovered by the OGLE team.}, language = {en} } @phdthesis{Aleff2002, author = {Aleff, Hans-J{\"o}rg}, title = {Die Dimension Zeit im Dienstleistungsmarketing}, publisher = {Deutscher Universit{\"a}tsverlag}, address = {Wiesbaden}, isbn = {3-8244-7651-7}, doi = {10.1007/978-3-322-91448-4}, pages = {247 S.}, year = {2002}, language = {de} }