TY - JOUR AB - Abstract Yttrium methoxyethoxide Y(OEtOMe)3 is an important precursor for the sol-gel preparation of Y2O3-containing materials. Its aggregation degree and the clusters, formed in solution of 2-methoxyethanol and modified by the ligands Hacac, i PrOH and THF are studied by means of EXAFS spectroscopy. The cluster geometries of the formed complexes deviate from the well-known cyclic decameric structure of the crystalline solid Y(OEtOMe)3. A pentanuclear square-pyramidal framework, which was found for Y(OEtOMe)3, dissolved in 2-methoxyethanol in a previous study, is confirmed by a detailed discussion of the structural EXAFS parameters. While the addition of the Lewis bases i PrOH and THF does not change the aggregation degree and short range order of Y(OEtOMe)3 in solution, chelating Hacac causes a stepwise degradation of the original pentameric metal framework. Details of the degradation pathway as deduced from the EXAFS results are given, which could not be achieved by any other spectroscopic method so far. The yttrium coordination number and third cumulants, which are necessary to account for asymmetry in the individual shells, are used in order to identify structural changes of the samples in comparison with the initially formed Y5-complex. AU - Bauer, Matthias AU - Bertagnolli, Helmut ID - 41274 IS - 8 JF - Zeitschrift für Physikalische Chemie KW - Physical and Theoretical Chemistry SN - 2196-7156 TI - Alkoxide Clusters in Solution: An EXAFS Study of the Example Y(OEtOMe)3 and the Degradation Induced by Structural Modifiers VL - 223 ER - TY - JOUR AU - Rabe, Volker AU - Frey, Wolfgang AU - Baro, Angelika AU - Laschat, Sabine AU - Bauer, Matthias AU - Bertagnolli, Helmut AU - Rajagopalan, Subramanian AU - Asthalter, Tanja AU - Roduner, Emil AU - Dilger, Herbert AU - Glaser, Thorsten AU - Schnieders, David ID - 41271 IS - 31 JF - European Journal of Inorganic Chemistry KW - Inorganic Chemistry SN - 1434-1948 TI - Syntheses, Crystal Structures, Spectroscopic Properties, and Catalytic Aerobic Oxidations of Novel Trinuclear Non‐Heme Iron Complexes VL - 2009 ER - TY - JOUR AU - Guillerm, Vincent AU - Gross, Silvia AU - Serre, Christian AU - Devic, Thomas AU - Bauer, Matthias AU - Férey, Gérard ID - 41270 IS - 5 JF - Chem. Commun. KW - Materials Chemistry KW - Metals and Alloys KW - Surfaces KW - Coatings and Films KW - General Chemistry KW - Ceramics and Composites KW - Electronic KW - Optical and Magnetic Materials KW - Catalysis SN - 1359-7345 TI - A zirconium methacrylate oxocluster as precursor for the low-temperature synthesis of porous zirconium(iv) dicarboxylates VL - 46 ER - TY - JOUR AU - Di Noto, Vito AU - Boeer, Angelika B. AU - Lavina, Sandra AU - Muryn, Christopher A. AU - Bauer, Matthias AU - Timco, Grigore A. AU - Negro, Enrico AU - Rancan, Marzio AU - Winpenny, Richard E. P. AU - Gross, Silvia ID - 41272 IS - 20 JF - Advanced Functional Materials KW - Electrochemistry KW - Condensed Matter Physics KW - Biomaterials KW - Electronic KW - Optical and Magnetic Materials SN - 1616-301X TI - Functional Chromium Wheel-Based Hybrid Organic-Inorganic Materials for Dielectric Applications VL - 19 ER - TY - JOUR AU - Bauer, Matthias AU - Bertagnolli, Helmut ID - 41275 IS - 13 JF - ChemPhysChem KW - Physical and Theoretical Chemistry KW - Atomic and Molecular Physics KW - and Optics SN - 1439-4235 TI - Towards X-Ray Absorption Spectroscopy in Real Time VL - 10 ER - TY - JOUR AB - In order to learn and interact with humans, robots need to understand actions and make use of language in social interactions. The use of language for the learning of actions has been emphasized by Hirsh-Pasek and Golinkoff (MIT Press, 1996), introducing the idea of acoustic packaging. Accordingly, it has been suggested that acoustic information, typically in the form of narration, overlaps with action sequences and provides infants with a bottom-up guide to attend to relevant parts and to find structure within them. In this article, we present a computational model of the multimodal interplay of action and language in tutoring situations. For our purpose, we understand events as temporal intervals, which have to be segmented in both, the visual and the acoustic modality. Our acoustic packaging algorithm merges the segments from both modalities based on temporal overlap. First evaluation results show that acoustic packaging can provide a meaningful segmentation of action demonstration within tutoring behavior. We discuss our findings with regard to a meaningful action segmentation. Based on our future vision of acoustic packaging we point out a roadmap describing the further development of acoustic packaging and interactive scenarios it is employed in. AU - Schillingmann, Lars AU - Wrede, Britta AU - Rohlfing, Katharina ID - 17258 IS - 4 JF - IEEE Transactions on Autonomous Mental Development SN - 1943-0612 TI - A Computational Model of Acoustic Packaging VL - 1 ER - TY - CONF AB - Learning is a social endeavor, in which the learner generally receives support from his/her social partner(s). In developmental research – even though tutors/adults behavior modifications in their speech, gestures and motions have been extensively studied, studies barely consider the recipient’s (i.e. the child’s) perspective in the analysis of the adult’s presentation, In addition, the variability in parental behavior, i.e. the fact that not every parent modifies her/his behavior in the same way, found less fine-grained analysis. In contrast, in this paper, we assume an interactional perspective investigating the loop between the tutor’s and the learner’s actions. With this approach, we aim both at discovering the levels and features of variability and at achieving a better understanding of how they come about within the course of the interaction. For our analysis, we used a combination of (1) qualitative investigation derived from ethnomethodological Conversation Analysis (CA), (2) semi-automatic computational 2D hand tracking and (3) a mathematically based visualization of the data. Our analysis reveals that tutors not only shape their demonstrations differently with regard to the intended recipient per se (adult-directed vs. child-directed), but most importantly that the learner’s feedback during the presentation is consequential for the concrete ways in which the presentation is carried out. AU - Pitsch, Karola AU - Vollmer, Anna-Lisa AU - Fritsch, Jannik AU - Wrede, Britta AU - Rohlfing, Katharina AU - Sagerer, Gerhard ID - 17259 KW - gaze KW - gesture KW - Multimodal KW - adult-child interaction T2 - Gesture and Speech in Interaction TI - On the loop of action modification and the recipient's gaze in adult-child interaction ER - TY - JOUR AB - A difficulty in robot action learning is that robots do not know where to attend when observing action demonstration. Inspired by human parent-infant interaction, we suggest that parental action demonstration to infants, called motionese, can scaffold robot learning as well as infants. Since infants knowledge about the context is limited, which is comparable to robots, parents are supposed to properly guide their attention by emphasizing the important aspects of the action. Our analysis employing a bottom-up attention model revealed that motionese has the effects of highlighting the initial and final states of the action, indicating significant state changes in it, and underlining the properties of objects used in the action. Suppression and addition of parents body movement and their frequent social signals to infants produced these effects. Our findings are discussed toward designing robots that can take advantage of parental teaching. AU - Nagai, Yukie AU - Rohlfing, Katharina ID - 17262 IS - 1 JF - IEEE Transactions on Autonomous Mental Development SN - 1943-0612 TI - Computational Analysis of Motionese Toward Scaffolding Robot Action Learning VL - 1 ER - TY - JOUR AU - Lohse, Manja AU - Hanheide, Marc AU - Pitsch, Karola AU - Rohlfing, Katharina AU - Sagerer, Gerhard ID - 17260 IS - 3 JF - Interaction Studies (Special Issue: Robots in the Wild: Exploring HRI in naturalistic environments) SN - 1572-0381 TI - Improving HRI design by applying Systemic Interaction Analysis (SInA) VL - 10 ER - TY - CONF AB - In developmental research, tutoring behavior has been identified as scaffolding infants’ learning processes. It has been defined in terms of child-directed speech (Motherese), child-directed motion (Motionese), and contingency. Contingency describes situations in which two agents socially interact with each other and Csibra and Gergely showed that contingency is a char- acteristic aspect of social interaction [3]. In the field of developmental robotics, research often assumes that in human-robot interaction (HRI), robots are treated similar to infants, because their immature cognitive capabilities benefit from this behavior. Here we present results con- cerning the acceptance of a robotic agent in a social learning scenario obtained via comparison to adults and 8-11 months old infants in equal conditions. These results constitute an important empirical basis for making use of tutoring behavior in social robotics. Our results reveal significant differences between Adult-Child Interaction (ACI), Adult-Adult Interaction (AAI) and Adult-Robot Interaction (ARI) in eye gaze behavior suggesting that contingency is impaired in the analyzed ARI situation. AU - Lohan, Katrin Solveig AU - Rohlfing, Katharina AU - Wrede, Britta ID - 17257 KW - Eyegaze KW - tutoring situations KW - Contingency TI - Analysing the effect of contingency in tutoring situations ER - TY - CHAP AU - Wrede, Britta AU - Rohlfing, Katharina AU - Hanheide, Marc AU - Sagerer, Gerhard ED - Sendhoff, B. ED - Körner, Edgar ED - Sporns, O. ED - Ritter, Helge ED - Doya, Kenji ID - 17261 T2 - Creating Brain-Like Intelligence: From Basic Principles to Complex Intelligent Systems TI - Towards Learning by Interacting ER - TY - CONF AB - In developmental research, tutoring behavior has been identified as scaffolding infants' learning processes. It has been defined in terms of child-directed speech (Motherese), child-directed motion (Motionese), and contingency. In the field of developmental robotics, research often assumes that in human-robot interaction (HRI), robots are treated similar to infants, because their immature cognitive capabilities benefit from this behavior. However, according to our knowledge, it has barely been studied whether this is true and how exactly humans alter their behavior towards a robotic interaction partner. In this paper, we present results concerning the acceptance of a robotic agent in a social learning scenario obtained via comparison to adults and 8-11 months old infants in equal conditions. These results constitute an important empirical basis for making use of tutoring behavior in social robotics. In our study, we performed a detailed multimodal analysis of HRI in a tutoring situation using the example of a robot simulation equipped with a bottom-up saliency-based attention model. Our results reveal significant differences in hand movement velocity, motion pauses, range of motion, and eye gaze suggesting that for example adults decrease their hand movement velocity in an Adult-Child Interaction (ACI), opposed to an Adult-Adult Interaction (AAI) and this decrease is even higher in the Adult-Robot Interaction (ARI). We also found important differences between ACI and ARI in how the behavior is modified over time as the interaction unfolds. These findings indicate the necessity of integrating top-down feedback structures into a bottom-up system for robots to be fully accepted as interaction partners. AU - Vollmer, Anna-Lisa AU - Lohan, Katrin Solveig AU - Fischer, Kerstin AU - Nagai, Yukie AU - Pitsch, Karola AU - Fritsch, Jannik AU - Rohlfing, Katharina AU - Wrede, Britta ID - 17272 KW - robot simulation KW - hand movement velocity KW - robotic interaction partner KW - robotic agent KW - robot-directed interaction KW - multimodal analysis KW - Motionese KW - Motherese KW - intelligent tutoring systems KW - immature cognitive capability KW - human computer interaction KW - eye gaze KW - child-directed speech KW - child-directed motion KW - bottom-up system KW - bottom-up saliency-based attention model KW - adult-robot interaction KW - adult-child interaction KW - adult-adult interaction KW - human-robot interaction KW - action learning KW - social learning scenario KW - social robotics KW - software agents KW - top-down feedback structures KW - tutoring behavior T2 - Development and Learning, 2009. ICDL 2009. IEEE 8th International Conference on Development and Learning TI - People modify their tutoring behavior in robot-directed interaction for action learning ER - TY - CONF AU - El-Darawy, Mohamed AU - Pfau, Timo AU - Hoffmann, Sebastian AU - Noé, Reinhold ID - 38242 T2 - 2009 IEEE/LEOS Summer Topical Meeting TI - Differential phase compensated constant modulus algorithm for phase noise tolerant coherent optical transmission ER - TY - JOUR AU - Wagenknecht, Inga AU - Meier-Gräwe, Uta AU - Fegert, Jörg M. ID - 40220 JF - Frühförderung interdisziplinär SN - 0721-9121 TI - Frühe Hilfen rechnen sich VL - 28 ER - TY - JOUR AU - Wallmeier, Nadine AU - Menke, Kirsten ID - 40348 IS - 2 JF - Korrespondenzblatt des Vereins für niederdeutsche Sprachforschung TI - Tagungsbericht: 122. Jahresversammlung des Vereins für niederdeutsche Sprachforschung in Ratzeburg. VL - 116 ER - TY - CHAP AU - Grotjahn, Rebecca ED - Grotjahn, Rebecca ID - 40417 SN - 978-3-86906-026-2 T2 - Deutsche Frauen, deutscher Sang – Musik in der deutschen Kulturnation TI - Deutsche Frauen, deutscher Sang – Nation, Gender und die idea of serious music VL - 1 ER - TY - CHAP AU - Grotjahn, Rebecca ED - Grotjahn, Rebecca ID - 40416 SN - 978-3-86906-026-2 T2 - Deutsche Frauen, deutscher Sang – Musik in der deutschen Kulturnation TI - Einleitung VL - 1 ER - TY - BOOK ED - Grotjahn, Rebecca ID - 37888 SN - 978-3-86906-026-2 TI - Deutsche Frauen, deutscher Sang – Musik in der deutschen Kulturnation VL - 1 ER - TY - BOOK AB - Die Orientierung am Sozialraum - an den lokalen sozialen Räumen von AkteurInnen - hat in der Sozialen Arbeit eine lange Tradition und erfährt zunehmende, auch öffentliche Aufmerksamkeit. An den Beispielen der Settlementarbeit, der Gemeinwesenarbeit und der sozialraumorientierten Sozialen Arbeit werden in diesem Band zentrale historische Entwicklungen der Communityorientierung in der Sozialen Arbeit rekonstruiert. Die zugrunde liegende Programmatik wird anschließend mit empirischen Daten konfrontiert und systematisch in aktuelle gesellschaftliche Zusammenhänge AU - Landhäußer, Sandra ID - 36298 KW - Community Gemeinwesenarbeit Settlementarbeit Soziale Arbeit Soziales Kapital TI - Communityorientierung in der Sozialen Arbeit: Die Aktivierung von sozialem Kapital ER - TY - JOUR AU - Andersen, U.L. AU - Leuchs, G. AU - Silberhorn, Christine ID - 40201 IS - 3 JF - Laser & Photonics Reviews KW - Condensed Matter Physics KW - Atomic and Molecular Physics KW - and Optics KW - Electronic KW - Optical and Magnetic Materials SN - 1863-8880 TI - Continuous-variable quantum information processing VL - 4 ER -