178,419 research outputs found
Goethes Faust : Wörterbuch / Hrsg. von Georg Witkowski
No full textGOETHES FAUST : WÖRTERBUCH / HRSG. VON GEORG WITKOWSKI
Goethes Faust : Wörterbuch / Hrsg. von Georg Witkowski (1)
Cover (1)
Titelseite (4)
Inhaltsübersicht / Abkürzungen (5)
Faust-Wörterbuch - A-E (6)
Faust-Wörterbuch - F-K (22)
Faust-Wörterbuch - L-R (42)
Faust-Wörterbuch - S-Z (57
DAVENPORT'S DREAM: 21ST CENTURY REFLECTIONS ON HEREDITY AND EUGENICS
No full textPreface / Jan A. Witkowski and John R. Inglis -- Foreword / Matt Ridley -- Illustrations -- Genes and politics / James D. Watson -- Charles Benedict Davenport, 1866 1944 / Jan A. Witkowski -- The eugenic world of Charles Benedict Davenport / Elof A. Carlson -- Davenport's dream / Maynard V. Olson -- Genetic determinism and evolutionary ethics: a mitochondrial perspective / Douglas C. Wallace -- Psychiatric genetics in an era of relative enlightenment / Daniel R. Weinberger and David Goldman -- Genes in mind? / Lindsey Kent and Simon Baron-Cohen -- Davenport and heredity counseling / Philip R. Reilly -- Genetics and equality / Ronald Dworkin -- Genetics and human nature / Lewis Wolpert -- Heredity in relation to eugenics (reprint) / Charles Benedict Davenpor
Ultrasonic Sensor for Mobile Mini-Robots Using Pseudo-Random Codes
No full textKlahold J, Rautenberg J, Rückert U. Ultrasonic Sensor for Mobile Mini-Robots Using Pseudo-Random Codes. In: Rückert U, Sitte J, Witkowski U, eds. Proceedings of the 5th International Heinz Nixdorf Symposium: Autonomous Minirobots for Research and Edutainment (AMiRE01). Vol 97. Heinz Nixdorf Institut, Universität Paderborn; 2001: 225-232
Stereoscopic Camera for Autonomous Mini-Robots Applied in KheperaSot League
No full textChinapirom T, Witkowski U, Rückert U. Stereoscopic Camera for Autonomous Mini-Robots Applied in KheperaSot League. In: FIRA Robot World Congress 2007, on CD. San Francisco, USA; 2007.This paper presents a stereoscopic vision system for the
mini-robot Khepera. The vision system performs objects
detection by using the stereo disparity and stereo
correspondence. The stereoscopic vision system enhances
robot’s visual perception ability by grabbing stereo images
and analysis 3D objects, while the robot doesn’t need to
move. The simple principle of our stereo vision is the less
displacement of correspondence pixels shows that the
pixels object is far away. To realize the stereo vision and
its calculation algorithms, the mini robot needs a powerful
FPGA and micro-controller module as well as 2D color
cameras. An application of Khepera equipped with the
stereoscopic camera is robot soccer in the KheperaSot
league. In the match, the robot has to be able to detect its
environment, i.e. the ball, walls, goals and its opponent
A Bluetooth Scatternet for the Khepera Robot
No full textDu JL, Witkowski U, Rückert U. A Bluetooth Scatternet for the Khepera Robot. In: 4th International Symposium on Autonomous Minirobots for Research and Edutainment (AMiRE). Buenos Aires, Argentina; 2007: 189-195.Radio-based communication plays a vital role in multi-robot systems.
Bluetooth is an energy-efficient communication technology suited for resourcelimited mini-robots such as the Khepera. However, the maximum number of nodes in a Bluetooth piconet is limited, while scatternets - networks of piconets - have not been fully specified. In this paper we present a Bluetooth scatternet using Bluetooth communication sticks developed in our research group. In our solution, bridge nodes carrying two of such Bluetooth sticks are used to interconnect piconets. Beside the developed hardware, issues such as routing as well as topology control are addressed. Finally, data rate and latency measurements are presented for the implemented solution
Teleworkbench: An Analysis Tool for Multi-Robotic Experiments
No full textTanoto A, Du JL, Witkowski U, Rückert U. Teleworkbench: An Analysis Tool for Multi-Robotic Experiments. In: Proceedings of the IFIP Conference on Biologically Inspired Cooperative Computing (BICC 2006), 19th World Computer Congress (WCC). Santiago, Chile; 2006.This paper presents a tool, one component of the Teleworkbench
system, for analyzing experiments in multi-robotics. The proposed
tool combines the video taken by a web cam monitoring the field
where the experiment runs and some computer generated visual objects
representing important events and information as well as robots’
behavior into one interactive video based on MPEG-4 standard. Visualization
and data summarization enables the developer to quickly grasp
a situation, whereas the possibility of scrolling through the video and
selectively activating information helps him analyzing interesting events
in depth. Because of the MPEG-4 standard used for the output video,
the analysis process can be done in a wide range of platforms. This trait
is beneficial for education and research cooperation purposes
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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