@article{14957, author = {{Niemann, Rainer and Sureth-Sloane, Caren}}, journal = {{Journal of Economics and Statistics}}, number = {{1}}, pages = {{77--95}}, title = {{{Capital Budgeting with Taxes under Uncertainty and Irreversibility}}}, volume = {{225}}, year = {{2005}}, } @article{41289, author = {{Feth, Martin P. and Bauer, Matthias and Kickelbick, Guido and Metelkina, Olga and Schubert, Ulrich and Bertagnolli, Helmut}}, issn = {{0022-3093}}, journal = {{Journal of Non-Crystalline Solids}}, keywords = {{Materials Chemistry, Condensed Matter Physics, Ceramics and Composites, Electronic, Optical and Magnetic Materials}}, number = {{5}}, pages = {{432--443}}, publisher = {{Elsevier BV}}, title = {{{Influence of additives and post-synthesis treatment on the structural properties of sol–gel prepared alumina-doped zirconia studied by EXAFS-spectroscopy and X-ray diffraction}}}, doi = {{10.1016/j.jnoncrysol.2004.12.012}}, volume = {{351}}, year = {{2005}}, } @article{41287, author = {{Bauer, Matthias and Kauf, Thomas and Christoffers, Jens and Bertagnolli, Helmut}}, issn = {{1463-9076}}, journal = {{Physical Chemistry Chemical Physics}}, keywords = {{Physical and Theoretical Chemistry, General Physics and Astronomy}}, number = {{13}}, publisher = {{Royal Society of Chemistry (RSC)}}, title = {{{Investigations into the metal species of the homogeneous iron(iii) catalyzed Michael addition reactions}}}, doi = {{10.1039/b501204j}}, volume = {{7}}, year = {{2005}}, } @article{17294, author = {{Rohlfing, Katharina}}, issn = {{1940-7750}}, journal = {{Perspectives on Language Learning and Education}}, number = {{3}}, pages = {{13--17}}, publisher = {{American Speech Language Hearing Association}}, title = {{{Learning prepositions}}}, doi = {{10.1044/lle12.3.13}}, volume = {{12}}, year = {{2005}}, } @inproceedings{17295, author = {{Fritsch, Jannik and Hofemann, Nils and Rohlfing, Katharina}}, booktitle = {{Proc. IEEE ICRA}}, publisher = {{IEEE}}, title = {{{Detecting ‘When to Imitate’ in a Social Context with a Human Caregiver}}}, year = {{2005}}, } @inproceedings{17293, author = {{Loehr, D. and Duncan, S. and Rohlfing, Katharina}}, booktitle = {{Symposium at the Congress of International Society for Gesture Studies Interacting Bodies 2005}}, title = {{{How analysis shapes phenomena}}}, year = {{2005}}, } @inproceedings{17292, author = {{Rohlfing, Katharina}}, booktitle = {{Proceedings of the 5th Workshop on Language and Space (Workshop on Spatial Language and Dialogue)}}, title = {{{Pointing to spatial relations in mother-child dialogue}}}, year = {{2005}}, } @inproceedings{17291, author = {{Rohlfing, Katharina and Brand, R. J. and Gogate, L. J.}}, booktitle = {{Symposium at the X. International Congress for Studies in Child Language IASCL 2005}}, title = {{{Multimodal Motherese}}}, year = {{2005}}, } @inbook{40475, author = {{Tenberge, Claudia}}, booktitle = {{Förderung des wissenschaftlichen Nachwuchses}}, editor = {{Hartinger, Andreas and Kahlert, Joachim}}, pages = {{219--234}}, title = {{{Zur Förderung der Persönlichkeitsentwicklung in handlungsintensiven Lernformen im naturwissenschaftlich-technischen Sachunterricht. }}}, year = {{2005}}, } @article{40896, abstract = {{Nonstationary complex random signals are in general improper (not circularly symmetric), which means that their complementary covariance is nonzero. Since the Karhunen-Loeve (K-L) expansion in its known form is only valid for proper processes, we derive the improper version of this expansion. It produces two sets of eigenvalues and improper observable coordinates. We then use the K-L expansion to solve the problems of detection and estimation of improper complex random signals in additive white Gaussian noise. We derive a general result comparing the performance of conventional processing, which ignores complementary covariances, with processing that takes these into account. In particular, for the detection and estimation problems considered, we find that the performance gain, as measured by deflection and mean-squared error (MSE), respectively, can be as large as a factor of 2. In a communications example, we show how this finding generalizes the result that coherent processing enjoys a 3-dB gain over noncoherent processing.}}, author = {{Schreier, Peter J. and Scharf, Louis L. and Mullis, Clifford T.}}, journal = {{IEEE Trans.\ Inform.\ Theory}}, number = {{1}}, pages = {{306–312}}, title = {{{Detection and estimation of improper complex random signals}}}, doi = {{10.1109/TIT.2004.839538}}, volume = {{51}}, year = {{2005}}, } @article{40894, abstract = {{The Rihaczek distribution for stochastic signals is a time- and frequency-shift covariant bilinear time-frequency distribution (TFD) based on the Crame acute;r-Loe grave;ve spectral representation for a harmonizable process. It is a complex Hilbert space inner product (or cross correlation) between the time series and its infinitesimal stochastic Fourier generator. To this inner product, we may attach an illuminating geometry, wherein the cosine squared of the angle between the time series and its infinitesimal stochastic Fourier generator is given by the Rihaczek distribution. The Rihaczek distribution also determines a time-varying Wiener filter for estimating a time series from its infinitesimal stochastic Fourier generator and measures the resulting error covariance. We propose a factored kernel to construct estimators of the Rihaczek distribution that are contained in Cohen’s class of bilinear TFDs.}}, author = {{Scharf, Louis L. and Schreier, Peter J. and Hanssen, Alfred}}, journal = {{IEEE Signal Process.\ Lett.}}, number = {{4}}, pages = {{297–300}}, title = {{{The Hilbert space geometry of the Rihaczek distribution for stochastic analytic signals}}}, doi = {{10.1109/LSP.2005.843772}}, volume = {{12}}, year = {{2005}}, } @inproceedings{40893, abstract = {{Based on the Cramer-Loeve spectral representation for a harmonizable random process, the Rihaczek distribution is a time- and frequency-shift covariant, bilinear time-frequency distribution. It can be expressed as a complex Hilbert space inner product between the time series and its infinitesimal stochastic Fourier generator. We show that we may attach an illuminating geometry to this inner product, wherein the cosine-squared of the angle between the time series and its infinitesimal stochastic Fourier generator is given by the Rihaczek distribution. We propose to construct estimators of the Rihaczek distribution using a factored kernel in Cohen’s class of bilinear time-frequency distributions}}, author = {{Schreier, Peter J. and Scharf, Louis L. and Hanssen, Alfred}}, booktitle = {{Proc.\ IEEE Int.\ Symp.\ Inform.\ Theory}}, pages = {{966–969}}, title = {{{A geometric interpretation of the Rihaczek time-frequency distribution for stochastic signals}}}, doi = {{10.1109/ISIT.2005.1523481}}, year = {{2005}}, } @inproceedings{40895, abstract = {{There are two types of aliasing in higher order spectra: “regular aliasing” due to sampling below the Nyquist frequency, and “higher order aliasing”. Spectra of discrete-time signals may suffer from higher-order aliasing if the signals are not sufficiently oversampled. By providing some insight into the cause of higher order aliasing, we show that higher order aliasing can just as well occur in second order spectra. More importantly, we demonstrate that spectra of stationary random signals defined as ensemble-averages and spectra of ergodic random signals defined as the Fourier transform of infinite time-averages never exhibit higher order aliasing}}, author = {{Schreier, Peter J.}}, booktitle = {{Proc. 6th\ Australian Comm.\ Theory Works.}}, pages = {{184–188}}, title = {{{A note on aliasing in higher order spectra}}}, doi = {{10.1109/AUSCTW.2005.1624249}}, year = {{2005}}, } @misc{40948, author = {{Topalović, Elvira}}, publisher = {{area verlag}}, title = {{{„Wenn mir mal ein Malheur passiert ...“}}}, year = {{2005}}, } @article{41751, author = {{Tumat, Antje}}, issn = {{0027-4801}}, journal = {{Die Musikforschung}}, number = {{2}}, pages = {{131‑150.}}, publisher = {{Bärenreiter}}, title = {{{„Der Componist hat hier dem opernhaften Elemente einen zu weiten Spielraum gegönnt“. Zwei Schauspielmusiken zu Shakespeares „Sturm“ in der zweiten Hälfte des 19. Jahrhunderts}}}, volume = {{58}}, year = {{2005}}, } @book{41634, abstract = {{Am Beispiel bolivianischer Migrantinnen in der Global City Buenos Aires wird das Phänomen der Feminisierung der Migration in Lateinamerika und dessen Bedeutung für die Konstitution translokaler sozialer Räume untersucht. Im Mittelpunkt einer {\glq}dichten Beschreibung’ pluri-lokaler Alltagswelten stehen dabei ökonomische Netzwerke und translokale Lebensentwürfe von Arbeiterinnen in illegalen Textilsweatshops und Frauen der Töchtergeneration. Analysiert werden einerseits die alltagsweltlichen sozialen Praktiken von Migrantinnen, die zu einer Kon-stitution eines translokalen und kulturell hybriden Raumes zwischen den beiden Nationalgesell-schaften Bolivien und Argentinien Raumes beitragen und andererseits Prozesse und Dynamiken der Neuaushandlung von ethnischen Identitäten in einem solchen Raum. Probing into the lives of female Bolivian migrants in the global city Buenos Aires, this empirical research explores feminisation of migration in Latin America analysing its significance for the constitution of translocal social spaces. Applying {\grq}thick description’ to the migrants’ pluri-local life worlds, the study closely examines how Bolivian women in Buenos Aires, partly working in illegal sweatshops and partly second generation migrants, establish economic networks and set up their translocal life plans. Thus the analysis of the migrants’ everyday social practices, such as work and leisure, yields insight not only into the constitution of a translocal and cultur-ally hybrid social space between the two countries, but also into dynamics of re-negotiation of ethnic identities within this space.}}, author = {{Spiegel, Anna}}, isbn = {{3-88939-764-6}}, keywords = {{Alltag, Bolivianische Einwanderin, Buenos Aires, Ethnizität}}, publisher = {{IKO}}, title = {{{Alltagswelten in translokalen Räumen : Bolivianische Migrantinnen in Buenos Aires}}}, year = {{2005}}, } @techreport{41637, author = {{Nageeb, Salma and Sieveking, Nadine and Spiegel, Anna}}, publisher = {{Transnationalisation and Development Research Centre, Faculty of Sociology, University of Bielefeld}}, title = {{{Negotiating Development: Trans-local Gendered Spaces in Muslim Societies}}}, volume = {{355}}, year = {{2005}}, } @techreport{36796, author = {{Nageeb, Salma and Sieveking, Nadine and Spiegel, Anna}}, title = {{{Engendering Development in Muslim Societies: Actors, Discourses and Networks in Malaysia, Senegal and Sudan}}}, volume = {{353}}, year = {{2005}}, } @article{42015, author = {{Kramer, Thomas and Schweins, Ralf and Huber, Klaus}}, issn = {{0021-9606}}, journal = {{The Journal of Chemical Physics}}, keywords = {{Physical and Theoretical Chemistry, General Physics and Astronomy}}, number = {{1}}, publisher = {{AIP Publishing}}, title = {{{Small-angle neutron scattering of dilute polystyrene chains at the protein limit of a colloid-polymer mixture}}}, doi = {{10.1063/1.1946751}}, volume = {{123}}, year = {{2005}}, } @article{42017, author = {{Kramer, Thomas and Schweins, Ralf and Huber, Klaus}}, issn = {{0024-9297}}, journal = {{Macromolecules}}, keywords = {{Materials Chemistry, Inorganic Chemistry, Polymers and Plastics, Organic Chemistry}}, number = {{1}}, pages = {{151--159}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Silsesquioxane Molecules and Polystyrene Chains as a Model System for Colloid−Polymer Mixtures in the Protein Limit}}}, doi = {{10.1021/ma048766x}}, volume = {{38}}, year = {{2005}}, }