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See detailCold War from Below: Tourist Encounters in Socialist Romania of the 1960s-1980s
Stefan, Oana Adelina UL

Presentation (2018, December 11)

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See detailPublic roundtable with Arlette Farge
Takats, Sean UL

Scientific Conference (2018, November 14)

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See detailShortcuts to adiabaticity in Fermi gases
Diao, Pengpeng; Deng, Shujin; Li, Fang et al

in New Journal of Physics (2018)

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See detailDigital History as Historical Artifact
Takats, Sean UL

Scientific Conference (2018, October 12)

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See detailLightweight and Compliant Long Reach Aerial Manipulator for Inspection Operations
Suarez, Alejandro; Sanchez Cuevas, Pedro Jesus UL; Fernandez, Manuel et al

in 2018 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) (2018, October 01)

The proximity between the multirotor blades and the environmental obstacles restricts the application of aerial manipulators in inspection tasks due to the risk of impacts, the limitation in the reach of ... [more ▼]

The proximity between the multirotor blades and the environmental obstacles restricts the application of aerial manipulators in inspection tasks due to the risk of impacts, the limitation in the reach of the arm, and the physical interactions. This paper presents a long reach aerial manipulator consisting of a hexarotor platform equipped with a 2-DOF compliant joint arm attached at the tip of a one-meter-length link in passive pendulum configuration. The arm integrates magnetic encoders for force/torque estimation-control based on joint deflection, a range sensor in the forearm link for measuring the distance to the contact point, and a camera for visual inspection. A 2-DOF wearable exoskeleton interface has been developed, allowing the teleoperation of the arm with visual feedback in a more intuitive way. The paper also covers the kinematics and dynamics of the aerial manipulator, including the dynamics of the flexible long reach link. The developed system has been evaluated in test-bench and in outdoor flight tests. [less ▲]

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See detailCats Parallel Great Apes and Corvids in Motor Self-Regulation – Not Brain but Material Size Matters
Bobrowicz, Katarzyna UL; Osvath, Mathias

in Frontiers in Psychology (2018)

The inhibition of unproductive motor movements is regarded as a fundamental cognitive mechanism. Recently it has been shown that species with large absolute brain size or high numbers of pallial neurons ... [more ▼]

The inhibition of unproductive motor movements is regarded as a fundamental cognitive mechanism. Recently it has been shown that species with large absolute brain size or high numbers of pallial neurons, like great apes and corvids, show the highest performance on a task purportedly measuring this mechanism: the cylinder task. In this task the subject must detour a perpendicularly oriented transparent cylinder to reach a reward through a side opening, instead of directly reaching for it and bumping into the front, which is regarded as an inhibitory failure. Here we test domestic cats, for the first time, and show that they can reach the same levels as great apes and corvids on this task, despite having much smaller brains. We tested subjects with apparatuses that varied in size (cylinder length and diameter) and material (glass or plastic), and found that subjects performed best on the large cylinders. As numbers of successes decreased significantly when the cylinders were smaller, we conducted additionally two experiments to discern which properties (length of the transparent surface, goal distance from the surface, size of the side opening) affects performance. We conclude that sensorimotor requirements, which differ between species, may have large impact on the results in such seemingly simple and apparently comparable tests. However, we also conclude that cats have comparably high levels of motor self-regulation, despite the differences between tests. [less ▲]

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See detailHow to Build a Research Tool for Historians? Tropy as a case study
Takats, Sean UL

Presentation (2018, September 26)

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See detailMeet Italian Scientists in Luxembourg
Cicotti, Claudio UL

Poster (2018, September 18)

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See detailQuantum work statistics, Loschmidt echo and information scrambling
Chenu, Aurélia UL; Egusquiza, I. L.; Molina-Vilaplana, J. et al

in Scientific Reports (2018)

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See detailOpen TEI Transviewer
Armaselu, Florentina UL; Reis, Frederic UL

Software (2018)

Open source TEI Transviewer. TEI Transviewer is an interface intended to the exploration of primary and secondary sources, at the document level, in historical or other types of digital editions involving ... [more ▼]

Open source TEI Transviewer. TEI Transviewer is an interface intended to the exploration of primary and secondary sources, at the document level, in historical or other types of digital editions involving the representation of original material. Its name comes from the combination of the terms transformation and viewing, supposing the transformation of documents in XML-TEI format (directly in the browser or by means of a server/dedicated editor) so that they can be viewed in the browser. [less ▲]

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See detailPhylogenetic and genomic analyses of the ribosomal oxygenases Riox1 (No66) and Riox2 (Mina53) provide new insights into their evolution
Braeuer, Katharina; Brockers, Kevin; Moneer, Jasmin et al

in BMC Ecology and Evolution (2018), 18(96),

Translation of specific mRNAs can be highly regulated in different cells, tissues or under pathological conditions. Ribosome heterogeneity can originate from variable expression or post-translational ... [more ▼]

Translation of specific mRNAs can be highly regulated in different cells, tissues or under pathological conditions. Ribosome heterogeneity can originate from variable expression or post-translational modifications of ribosomal proteins. The ribosomal oxygenases RIOX1 (NO66) and RIOX2 (MINA53) modify ribosomal proteins by histidine hydroxylation. A similar mechanism is present in prokaryotes. Thus, ribosome hydroxylation may be a well-conserved regulatory mechanism with implications in disease and development. However, little is known about the evolutionary history of Riox1 and Riox2 genes and their encoded proteins across eukaryotic taxa. [less ▲]

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See detailAn Optimization Approach for an RLL-Constrained LDPC Coded Recording System Using Deliberate Flipping
Chou, Hung-Pu UL; Sham, Chiu-Wing; Hong-fu, Chou

in IEEE Communications Letters (2018)

For a recording system that has a run-length-limited (RLL) constraint, this approach imposes the hard error by flipping bits before recording. A high error coding rate limits the correcting capability of ... [more ▼]

For a recording system that has a run-length-limited (RLL) constraint, this approach imposes the hard error by flipping bits before recording. A high error coding rate limits the correcting capability of the RLL bit error. Since iterative decoding does not include the estimation technique, it has the potential capability of solving the hard error bits within several 7 iterations compared to an LDPC coded system. In this letter, we implement density evolution and the differential evolution approach to provide a performance evaluation of unequal error protection LDPC code to investigate the optimal LDPC code distribution for an RLL flipped system. [less ▲]

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