cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Neolygus yonanus Yasunaga 2024, n. sp.
Creators: name: Yasunaga, Tomohide
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Miridae
Neolygus
Neolygus yonanus

description: Neolygus yonanus n. sp.
Figs. 5A–B, 9B, 10A–D, 17M–O
Material examined. Holotype (♂). JAPAN: Ryukyus, Okinawa Island, Kunigami Village, Yona, 26.76, 128.22, 21 Feb 1973, H. Hasegawa (NIAES) (AMNH _ PBI 00378769).
Diagnosis. Currently known by a single male specimen. Most closely related to N. kyushuensis (Yasunaga) (Fig. 2A–B), from which N. yonanus n. sp. can be distinguished by its ovoid body (Fig. 5A); apical 3/4 of clypeus darkened (Fig. 5B); antennal segment II slightly longer than metafemur; labium as long as basal width of pronotum; posterior margin of pronotum, scutellum and clavus darkened (Fig. 5A); apical protuberances of parameres more developed (Fig. 10A–D); and vesical spiculum tapered apically (Figs. 9B, 17O).
Description. Holotype male: Body oval (Fig. 5A); dorsum pale brown (probably greenish when alive), with uniformly distributed, pale, simple, reclining setae. Head shining; vertex narrow, with basal transverse carina that is as thick as pronotal collar; apical 3/4 of clypeus darkened (Fig. 5B). Antenna pale brown; apex of segment II, whole segments III and IV brown; segment II slightly longer than metafemur; segment III longer than head width across eyes. Labium shiny pale brown, reaching but not exceeding apex of metacoxa. Pronotum shining, darkened posteriorly; scutellum dark brown; pleura including scent efferent system pale brown. Hemelytra somewhat matte; clavus darkened; apical part of corium semi-circularly darkened; membrane pale smoky brown. All coxae and legs pale brown; metafemur with two brown rings that are obliterated ventrally; tibial spines brown; apex of each tarsomere III darkened. Ventral side of abdomen uniformly pale brown.
Male genitalia (Figs. 9B, 10A–D, 17M–O): Parameres with rather developed apical protuberance on sensory lobes (Fig. 10A–D); vesical spiculum almost straight, tapered and flattened apically (Figs. 9B, 17O).
Female: Unknown.
Measurements: See Table 1.
Etymology. Named for the type locality, Yona (in Kunigami Village, North Okinawa Island); Latinized as an adjective.
Distribution. Japan (Ryukyus: Okinawa Island).
Biology. Collection record suggests that this new species appears earliest (February) among the Japanese congeners. No other information is available on the biology.
description: Published as part of Yasunaga, Tomohide, 2024, New species of the plant bug genus Neolygus Knight from Japan, Taiwan and Thailand (Hemiptera: Heteroptera: Miridae: Mirini), pp. 451-487 in Zootaxa 5446 (4) on page 464, DOI: 10.11646/zootaxa.5446.4.1, http://zenodo.org/record/11102124
Isomonodromic deformatiion with an irregular singularity and hyperelliptic curve
Creators: name: Matsuda, Kazuhide
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 34A20, 32G34

description: In this paper, we extend the result of Kitaev and Korotkin to the case where a monodromy-preserving deformation has an irregular singularity. For the monodromy-preserving deformation, we obtain the $τ$-function whose deformation parameters are the positions of regular singularities and the parameter $t$ of an irregular singularity. Furthermore, the $τ$-function is expressed by the hyperelliptic $Θ$ function moving the argument $\z$ and the period $\B,$ where $t$ and the positions of regular singularities move $z$ and $\B,$ respectively.
description: 23 pages, 2 figures
Future precision neutrino experiments and their theoretical implications
Creators: name: Winter, Walter
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Future neutrino oscillation measurement focus, at first priority, on the discovery of sin^2(2 theta_13) describing the coupling between solar and atmospheric oscillations. In this talk, we briefly discuss the prospects to measure sin^2(2 theta_13) by future reactor and beam experiments, and we illustrate the usefulness of these measurements (and their precision) from the theoretical point of view with an example.
description: 7 pages, 2 figures. Talk given at Matter to the deepest 2007
title: Umm el-Qaab (Abydos), Ägypten. Untersuchungen zum Osiriskult in Abydos vom Alten Reich bis in die Spätzeit. Die Arbeiten der Jahre 2017 und 2018
Creators: name: Effland, Ute
name: Effland, Andreas
Publisher: name: Deutsches Archäologisches Institut
Year: 2018

description: e-Forschungsberichte, Faszikel 2 (2018)
description: The site of Abydos, the main Egyptian centre of the cult of the god Osiris, flourished from the predynastic period until Christian times. Osiris was one of the most important deities of Ancient Egypt, whose principal association is with death, resurrection and fertility. The tomb of this god, a form of cenotaph which seems to have appeared from at least the Middle Kingdom onwards, was placed in Abydos. It is associated with the mythological narrative of Osiris, in which parts of his dismembered body were scattered over the country, Abydos being particularly sacred in this respect. Egyptian kings sought to take part in the resurrection of Osiris to gain legitimization for their kingship. Annual performances and processions took place at this sacred site. The cultic activities led to countless ritual and votive material in Umm el-Qaab, the former ancient necropolis of the early dynastic kings of Egypt. The focus of work done in 2017 and 2018 concentrated mainly on the documentation of inscribed material.
title: Gouvernorat Kafr esch-Scheich, Ägypten. Landschaftsarchäologie und regionale Siedlungsnetzwerke um den Fundplatz Tell el-Faraʿin (Buto) im Nildelta. Die Arbeiten des Jahres 2018
Creators: name: Schiestl, Robert
Publisher: name: Deutsches Archäologisches Institut
Year: 2018

description: e-Forschungsberichte, Faszikel 2 (2018)
description: The reconstruction of the ancient waterscape in the northwestern Nile delta forms an integral part of the research question of the settlement history of this region. The fundamental changes in the modern landscape proved to be challenging when attempting to trace ancient branches of the Nile by auger coring. The initial hypothesis for the course of a former Nile branch was based on a linear settlement distribution. The recent analysis of a Digital Elevation Model of the region, based on TandemX satellite data, provides a remarkably clear and entirely different picture: a ramified sub delta of smaller branches emerges. The ancient settlements were all founded on levees of these smaller branches.
On the ambiguities in the effective action in Lorentz-violating gravity
Creators: name: Gomes, M.
name: Mariz, T.
name: Nascimento, J. R.
name: Passos, E.
name: Petrov, A. Yu.
name: da Silva, A. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the occurrence of ambiguities for Lorentz-violating gravitational Chern-Simons term. It turns out that this term is accompanied by a coefficient depending on an undetermined parameter, due to an arbitrariness in the choice of the conserved current.
description: 9 pages, minor corrections
Magnetohydrodynamics and electro-electron interaction of massless Dirac fermions
Creators: name: Khudaiberdiev, D. A.
name: Gusev, G. M.
name: Olshanetsky, E. B.
name: Kvon, Z. D.
name: Mikhailov, N. N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The magnetotransport properties of massless Dirac fermions in a gapless HgTe quantum well are investigated. In samples with narrow channels, a large negative magnetoresistance with a Lorentzian profile is observed, which is interpreted as a manifestation of electron viscosity due to electron-electron interaction. Comparison of experiment with theory yields the shear stress relaxation time of the Dirac fermions caused by electron-electron scattering.
description: 8 pages , 9 figures
title: Gouvernorat Kafr esch-Scheich, Ägypten. Tell el-Faraʿin (Buto) im Nildelta. Die Arbeiten der Jahre 2017 und 2018
Creators: name: Hartung, Ulrich
Publisher: name: Deutsches Archäologisches Institut
Year: 2018

description: e-Forschungsberichte, Faszikel 2 (2018)
description: With regard to the proposed ending of the project in autumn 2018, work at Buto (Tell el-Faraʿin) focused on the completion of the documentation and the studies of the excavated material and its appropriate storage after closing the excavation. Another goal was the continuation of field work on a small scale in order to clarify some still unsolved archaeological questions. One of these desiderata was to extend the investigations of the settlement sequence until its beginning. The excavation of a sondage revealed the earliest settlement remains on the surface of a sand dune which underlies the entire side of Buto. The pottery assemblage of this oldest occupation layer is of special interest as it consists of two different kinds of ceramics. One group is hand-made and resembles late Neolithic Egyptian pottery whilst the vessels of the other group are finished by means of a turning device, pointing to the late Chalcolithic pottery tradition of southern Palestine. As these latter vessels are no imports but also locally made of Nile silt, one has to assume that different population groups – late Neolithic Egyptian and late Chalcolithic Southern Levantine settlers – must have lived at Buto side by side, even if only temporarily. Subsequently, the number of Levantine style pottery decrea-ses and is gradually replaced by characteristic ceramics of the Lower Egyptian Buto-Maadi-Culture. This unique evidence sheds new light on the settlement of the western Nile Delta and the emergence and early development of the Lower Egyptian Culture. With the exposure of the beginning of the occupation, Buto now provides an uninterrupted stratigraphic sequence from the early 4th millennium until the Old Kingdom which can be a solid basis for comparisons with other sites. Furthermore, the investigations of the brewery kilns excavated last year were continued and completed. They date to the Naqada IIC/D period and their circular construction seems to represent a Lower Egyptian variant of such installations. Comparable kilns in Upper Egypt show a slightly different construction and arrangement. As unexpected evidence two large pits filled with shells came to light beneath the brewery and illustrate the exploitation of aquatic sources for food production at Buto.
Observational evidence for AGN feedback in early-type galaxies
Creators: name: Schawinski, Kevin
name: Thomas, Daniel
name: Sarzi, Marc
name: Maraston, Claudia
name: Kaviraj, Sugata
name: Joo, Seok-Joo
name: Yi, Sukyoung K.
name: Silk, Joseph
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A major amendment in recent models of hierarchical galaxy formation is the inclusion of so-called AGN feedback. The energy input from an active central massive black hole is invoked to suppress star formation in early-type galaxies at later epochs. A major problem is that this process is poorly understood, and compelling observational evidence for its mere existence is still missing. In search for signatures of AGN feedback, we have compiled a sample of 16,000 early-type galaxies in the redshift range 0.05
description: Accepted for publication in MNRAS. 18 pages, 12 figures. A version with full-resolution figures is available http://www-astro.physics.ox.ac.uk/~kevins/obs_evidence/obs_evidence.html
Model-Based Compressive Sensing
Creators: name: Baraniuk, Richard G.
name: Cevher, Volkan
name: Duarte, Marco F.
name: Hegde, Chinmay
Publisher: name: arXiv
Year: 2008
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Compressive sensing (CS) is an alternative to Shannon/Nyquist sampling for the acquisition of sparse or compressible signals that can be well approximated by just K << N elements from an N-dimensional basis. Instead of taking periodic samples, CS measures inner products with M < N random vectors and then recovers the signal via a sparsity-seeking optimization or greedy algorithm. Standard CS dictates that robust signal recovery is possible from M = O(K log(N/K)) measurements. It is possible to substantially decrease M without sacrificing robustness by leveraging more realistic signal models that go beyond simple sparsity and compressibility by including structural dependencies between the values and locations of the signal coefficients. This paper introduces a model-based CS theory that parallels the conventional theory and provides concrete guidelines on how to create model-based recovery algorithms with provable performance guarantees. A highlight is the introduction of a new class of structured compressible signals along with a new sufficient condition for robust structured compressible signal recovery that we dub the restricted amplification property, which is the natural counterpart to the restricted isometry property of conventional CS. Two examples integrate two relevant signal models - wavelet trees and block sparsity - into two state-of-the-art CS recovery algorithms and prove that they offer robust recovery from just M=O(K) measurements. Extensive numerical simulations demonstrate the validity and applicability of our new theory and algorithms.
description: 20 pages, 10 figures. Typo corrected in grant number. To appear in IEEE Transactions on Information Theory
title: Elephantine, Ägypten. Gesamtprojekt Elephantine und Teilprojekt Lebenswirklichkeiten (Realities of Life). Die Arbeiten von Oktober 2017 bis Mai 2018
Creators: name: Sigl, Johanna
Publisher: name: Deutsches Archäologisches Institut
Year: 2018

description: e-Forschungsberichte, Faszikel 2 (2018)
description: Excavations in Middle Kingdom houses on Elephantine Island in the course of the DAI project “Realities of Life” revealed a variety of production activities, which were executed for the housing and provision of the inhabitants, but also hints on personal and commercial activities. The use of standard archaeological as well as archaeometric methods allow new and unexpected insight into e.g. jewelry and bread production, space utilization, and regional connections. The project also offers training programs and study days to support the capacity building of the employees of the Egyptian Ministry of Antiquities. Furthermore, a special exhibition on Arabic ostraca attesting to the history of Elephantine in the early Middle Ages was opened in the excavation museum.
Wisdom of (Binned) Crowds: A Bayesian Stratification Paradigm for Crowd Counting
Creators: name: Shivapuja, Sravya Vardhani
name: Khamkar, Mansi Pradeep
name: Bajaj, Divij
name: Ramakrishnan, Ganesh
name: Sarvadevabhatla, Ravi Kiran
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: Datasets for training crowd counting deep networks are typically heavy-tailed in count distribution and exhibit discontinuities across the count range. As a result, the de facto statistical measures (MSE, MAE) exhibit large variance and tend to be unreliable indicators of performance across the count range. To address these concerns in a holistic manner, we revise processes at various stages of the standard crowd counting pipeline. To enable principled and balanced minibatch sampling, we propose a novel smoothed Bayesian sample stratification approach. We propose a novel cost function which can be readily incorporated into existing crowd counting deep networks to encourage strata-aware optimization. We analyze the performance of representative crowd counting approaches across standard datasets at per strata level and in aggregate. We analyze the performance of crowd counting approaches across standard datasets and demonstrate that our proposed modifications noticeably reduce error standard deviation. Our contributions represent a nuanced, statistically balanced and fine-grained characterization of performance for crowd counting approaches. Code, pretrained models and interactive visualizations can be viewed at our project page https://deepcount.iiit.ac.in/
description: Accepted at ACM Multimedia (ACMMM) 2021 . Code, pretrained models and interactive visualizations can be viewed at our project page https://deepcount.iiit.ac.in/
Propagation dynamics of radially polarized symmetric Airy beams in the fractional Schrödinger equation
Creators: name: He, Shangling
name: Malomed, Boris A.
name: Mihalache, Dumitru
name: Peng, Xi
name: He, Yingji
name: Deng, Dongmei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We analyze the propagation dynamics of radially polarized symmetric Airy beams (R-SABs) in a (2+1)-dimensional optical system with fractional diffraction, modeled by the fractional Schrödinger equation (FSE) characterized by the Lévy index. The autofocusing effect featured by such beams becomes stronger, while the focal length becomes shorter, with the increase of . The effect of the intrinsic vorticity on the autofocusing dynamics of the beams is considered too. Then, the ability of R-SABs to capture nano-particles by means of radiation forces is explored, and multiple capture positions emerging in the course of the propagation are identified. Finally, we find that the propagation of the vortical R-SABs with an off-axis shift leads to rupture of the ring-shaped pattern of the power-density distribution.
description: 15pages, 7 figures
Wider die Vereinfacher und Vereindeutiger
Creators: name: Depkat, Volker
Publisher: name: Blick in die Wissenschaft
Year: 2019

description: Wohin man derzeit auch blickt, die Vereinfacher in Politik, Wirtschaft und anderswo, die eine immer komplexer werdende Welt mit immer weniger Worten erklären, scheinen das Sagen zu haben. Überall gibt es Abschottungsbemühungen und politische Alleingänge. Gleichzeitig verroht die öffentliche Diskussion immer weiter. In einer solchen Welt haben Geisteswissenschaftler*innen eine besondere Verantwortung. Darum bemüht, die Welt in ihrer komplexen Uneindeutigkeit zu reflektieren, erforschen Geisteswissenschaftler*innen die Sinnstiftungsmechanismen von Texten im weitesten Sinne. Sie haben Präzision im Umgang mit Wörtern und Sprache gelernt und sind sensibel für die Begriffe, mit denen Wirklichkeit beschrieben und Handlungssituationen definiert werden. Vor allem aber sind sie Komplexitätsund Ambiguitätsexpert*innen, die die menschliche Existenz in ihrer ganzen, oft widersprüchlichen Kontextualität begreifen wollen. Das Beharren auf der Uneindeutigkeit der Welt und des menschlichen Lebens in ihr ist eminent politisch, weil nur autoritäre Weltsichten in Eindeutigkeitsversprechen und Homogenitätsfiktionen ankern.
description: Blick in die Wissenschaft, Bd. 28 Nr. 39 (2019): Blick in die Wissenschaft 39
Linear polarization-direction correlations in $γ$-ray scattering experiments
Creators: name: Iliadis, Christian
name: Friman-Gayer, Udo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Scattering measurements with incident linearly polarized $γ$ rays provide information on spins, parities, and $γ$-ray multipolarity mixing coefficients, and, therefore, on the nuclear matrix elements involved in the transitions. We present the general formalism for analyzing the observed angular correlations. The expressions are used to compute three-dimensional radiation patterns, which are important tools for optimizing experimental setups. Frequently, $γ$-ray transitions can proceed via two multipolarities that mix coherently. In such cases, the relative phases of the nuclear matrix elements are important when comparing results from different measurements. We discuss different phase conventions that have been used in the literature and present their relationships. Finally, we propose a basic experimental geometry consisting of detectors located at four different spatial locations. For this geometry, we present the measured anisotropies of the emitted $γ$ rays in graphical format as an aid in the data analysis.
description: 39 pages, 51 figures
title: Dra' Abu el-Naga, Ägypten. Das thebanische Pauloskloster (Deir el-Bachît). Sakraltopographie einer Klosterlandschaft und ihre Entwicklung auf dem Hügel von Dra' Abu el-Naga/Oberägypten. Die Arbeiten der Jahre 2017 und 2018
Creators: name: Eichner, Ina
Publisher: name: Deutsches Archäologisches Institut
Year: 2018

description: e-Forschungsberichte, Faszikel 2 (2018)
description: During excavation campaigns in 2017 and 2018, questions concerning the hierarchical structures within the monastery's community were pursued. For the clarification of these questions, the monks' cells and the graves in the monastery's cemetery are particularly relevant features. Excavations in the dormitory building U1 focused on the archaeological investigation of three rooms, the adjoining corridor and the exterior areas of the building. It was established that several rooms had been almost completely cleared out before they were re-used during a later stage, and that the layers were gene­rally extremely disturbed. Excavation in the necropolis was concentrated on an area that contained six graves. In one of the graves, the buried individual had subsequently been robbed of his textile wrappings. Both excavated areas were therefore disturbed to a high degree.
A guided edge-aware smoothing-sharpening filter based on patch interpolation model and generalized Gamma distribution
Creators: name: Deng, Guang
name: Galetto, Fernando J.
name: Al-nasrawi, Mukhalad
name: Waheed, Waseem
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Smoothing and sharpening are two fundamental image processing operations. The latter is usually related to the former through the unsharp masking algorithm. In this paper, we develop a new type of filter which performs smoothing or sharpening via a tuning parameter. The development of the new filter is based on (1) a new Laplacian-based filter formulation which unifies the smoothing and sharpening operations, (2) a patch interpolation model similar to that used in the guided filter which provides edge-awareness capability, and (3) the generalized Gamma distribution which is used as the prior for parameter estimation. We have conducted detailed studies on the properties of two versions of the proposed filter (self-guidance and external guidance). We have also conducted experiments to demonstrate applications of the proposed filter. In the self-guidance case, we have developed adaptive smoothing and sharpening algorithms based on texture, depth and blurriness information extracted from an image. Applications include enhancing human face images, producing shallow depth of field effects, focus-based image enhancement, and seam carving. In the external guidance case, we have developed new algorithms for combining flash and no-flash images and for enhancing multi-spectral images using a panchromatic image.
description: 23 pages, 16 figures
Wave propagation in axion electrodynamics
Creators: name: Itin, Yakov
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, the axion contribution to the electromagnetic wave propagation is studied. First we show how the axion electrodynamics model can be embedded into a premetric formalism of Maxwell electrodynamics. In this formalism, the axion field is not an arbitrary added Chern-Simon term of the Lagrangian, but emerges in a natural way as an irreducible part of a general constitutive tensor.We show that in order to represent the axion contribution to the wave propagation it is necessary to go beyond the geometric approximation, which is usually used in the premetric formalism. We derive a covariant dispersion relation for the axion modified electrodynamics. The wave propagation in this model is studied for an axion field with timelike, spacelike and null derivative covectors. The birefringence effect emerges in all these classes as a signal of Lorentz violation. This effect is however completely different from the ordinary birefringence appearing in classical optics and in premetric electrodynamics. The axion field does not simple double the ordinary light cone structure. In fact, it modifies the global topological structure of light cones surfaces. In CFJ-electrodynamics, such a modification results in violation of causality. In addition, the optical metrics in axion electrodynamics are not pseudo-Riemannian. In fact, for all types of the axion field, they are even non-Finslerian.
title: Teufelsrapport und belauschte Teufelsversammlung
title: Zum Nachwirken eines Exempel-Motivs im geistlichen und weltlichen Spiel
titleType: Subtitle
Creators: name: Gerhardt, Christoph
Publisher: name: Trier University
Year: 2021

description: Untersuchung zum Motiv der Teufelsversammlung in der mittelalterlichen deutschen Spielliteratur
title: Dra' Abu el-Naga, Ägypten. Die Särge des Imeni und der Geheset – Textzeugen an der Schwelle zwischen Sargtexten und Totenbuch. Die Arbeiten des Jahres 2018
Creators: name: Polz, Daniel
name: Wagner, Mareike
Publisher: name: Deutsches Archäologisches Institut
Year: 2018

description: e-Forschungsberichte, Faszikel 2 (2018)
description: The coffins of Imeni and Geheset were found in Shaft K03.4, in Area H of the necropolis of Draʿ Abu el-Naga, in the north-eastern part of the Theban Necropolis, on the western bank of the Nile opposite the modern city of Luxor / Upper Egypt. Shaft K03.4 is dated to the 13th Dynasty and was discovered and excavated during the seasons of 2003 and 2004. During the course of the excavations, the burial of Geheset was discovered in a small chamber on the bottom of the shaft, where (the) two coffins were found in situ. The exterior coffin of Imeni is of very high quality and decorated on the outside and inside whereas the interior coffin of Geheset is of poorer quality and only decorated on the outside. The most interesting and outstanding fact in connection with these coffins is that the coffin of Imeni seems to be one of the first artefacts known to date that is inscribed with chapters of the famous Book of the Dead.
Resilient and consistent multirobot cooperative localization with covariance intersection
Creators: name: Chang, Tsang-Kai
name: Chen, Kenny
name: Mehta, Ankur
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Cooperative localization is fundamental to autonomous multirobot systems, but most algorithms couple inter-robot communication with observation, making these algorithms susceptible to failures in both communication and observation steps. To enhance the resilience of multirobot cooperative localization algorithms in a distributed system, we use covariance intersection to formalize a localization algorithm with an explicit communication update and ensure estimation consistency at the same time. We investigate the covariance boundedness criterion of our algorithm with respect to communication and observation graphs, demonstrating provable localization performance under even sparse communications topologies. We substantiate the resilience of our algorithm as well as the boundedness analysis through experiments on simulated and benchmark physical data against varying communications connectivity and failure metrics. Especially when inter-robot communication is entirely blocked or partially unavailable, we demonstrate that our method is less affected and maintains desired performance compared to existing cooperative localization algorithms.
description: 12 pages, 8 figures, to be published in IEEE Transactions on Robotics
title: Zur Spieltradition von 'Sündenfall und Erlösung'
title: mit textkritischen und kommentierenden Bemerkungen zum Text
titleType: Subtitle
Creators: name: Gerhardt, Christoph
Publisher: name: Trier University
Year: 2021

description: Untersuchungen und Textkommentar zum spätmittelalterlichen Spiel 'Sündenfall und Erlösung'
Debiased Explainable Pairwise Ranking from Implicit Feedback
Creators: name: Damak, Khalil
name: Khenissi, Sami
name: Nasraoui, Olfa
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Recent work in recommender systems has emphasized the importance of fairness, with a particular interest in bias and transparency, in addition to predictive accuracy. In this paper, we focus on the state of the art pairwise ranking model, Bayesian Personalized Ranking (BPR), which has previously been found to outperform pointwise models in predictive accuracy, while also being able to handle implicit feedback. Specifically, we address two limitations of BPR: (1) BPR is a black box model that does not explain its outputs, thus limiting the user's trust in the recommendations, and the analyst's ability to scrutinize a model's outputs; and (2) BPR is vulnerable to exposure bias due to the data being Missing Not At Random (MNAR). This exposure bias usually translates into an unfairness against the least popular items because they risk being under-exposed by the recommender system. In this work, we first propose a novel explainable loss function and a corresponding Matrix Factorization-based model called Explainable Bayesian Personalized Ranking (EBPR) that generates recommendations along with item-based explanations. Then, we theoretically quantify additional exposure bias resulting from the explainability, and use it as a basis to propose an unbiased estimator for the ideal EBPR loss. The result is a ranking model that aptly captures both debiased and explainable user preferences. Finally, we perform an empirical study on three real-world datasets that demonstrate the advantages of our proposed models.
description: 11 pages, 2 figures, Accepted at RecSys '21
Neue Dimension der Erinnerungsarbeit
Creators: name: Hebel, Udo
Publisher: name: Blick in die Wissenschaft
Year: 2019

description: Der über längere Zeit entwickelte Gedanke einer intensiveren Zusammenarbeit mündet 2018 in einer institutionalisierten Partnerschaft: Am 9. August 2018 unterzeichnen der Präsident der Universität Regensburg Professor Dr. Udo Hebel, Staatsminister Bernd Sibler, der Leiter der KZ-Gedenkstätte Flossenbürg Dr. Jörg Skriebeleit und der Direktor der Stiftung Bayerische Gedenkstätten, Mitglied des Landtags Karl Freller, eine Kooperationsvereinbarung zwischen Universität Regensburg und KZ-Gedenkstätte Flossenbürg. Der Präsident der Universität Regensburg blickt in seiner Rede anlässlich der Unterzeichnung auf Idee und Anspruch dieser besonderen Kooperation.
description: Blick in die Wissenschaft, Bd. 28 Nr. 39 (2019): Blick in die Wissenschaft 39
title: Dra' Abu el-Naga, Ägypten. Untersuchungen zu Formation und Entwicklung einer oberägyptischen Residenznekropole. Die Arbeiten der Jahre 2017 und 2018
Creators: name: Polz, Daniel
name: Böhme, Isa
name: Michels, Susanne
name: Ruppert, Christine
Publisher: name: Deutsches Archäologisches Institut
Year: 2018

description: e-Forschungsberichte, Faszikel 2 (2018)
description: The institute’s archaeological work in the necropolis of Draʿ Abu el-Naga was temporarily concluded in 2017. The 2017–2018 seasons in the field primarily focused on the documentation of all accessible architectural and archaeological structures in Area H in Draʿ Abu el-Naga, the north-eastern part of the Theban Necropolis. Area H is located in the middle of the foothills of Draʿ Abu el-Naga and is the location of two widely visible landmarks: the remains of the mud-brick pyramid of king Nub-Kheper-Ra Intef (late 17th Dynasty, ca. 1580 BC), and the large twelve-pillared ‘Saff’ tomb no. 232 (TT 232, early 18th Dynasty, ca. 1550 BC). The surrounding area is characterized by an unusually large number of earlier, contemporary and later tombs and tomb shafts. For documentation purposes, both above and below ground, the structure from motion technique has been used.
»was bleibt?«
Creators: name: Bauridl, Birgit M.
Publisher: name: Blick in die Wissenschaft
Year: 2019

description: Am 23. April 1945 erreichten Soldaten der US-Armee das ländlich gelegene Konzentrationslager Flossenbürg in der nördlichen Oberpfalz unweit des späteren Eisernen Vorhangs. Dort fanden sie noch ca. 1500 Häftlinge vor – ungefähr so viele, wie es am Ende des Gründungsjahres des Konzentrationslagers 1938 waren. Zum Zeitpunkt der Befreiung des Hauptlagers waren zahllose andere Häftlinge noch auf Todesmärschen unterwegs. Die letzten von ihnen sollten erst am 8. Mai von den amerikanischen Truppen eingeholt und befreit werden. Spätestens zwischen dem 23. April und dem 8. Mai 1945 wird in Flossenbürg in besonderer Weise deutlich, dass zum Ende des Nazi-Regimes das Gleichzeitige ungleichzeitig und das Ende des Lagersystems kein überall gleichzeitig erfolgendes Ereignis, sondern ein komplexer Prozess war. Spätestens am 23. April 1945 beginnt in Flossenbürg die Frage nach der Erinnerung, oder vielmehr die Frage nach den Erinnerungen der Menschen aus diversen Nationen und Kulturen – die Frage nach den Erinnerungen der Überlebenden, der Familien der Überlebenden und der Nicht-Überlebenden, der Täter*innen, der Mitläufer*innen, der Daneben-Stehenden, der Alliierten – und die Frage nach dem Umgang mit den Erinnerungen an all diese. Spätestens ab dem 23. April 1945 wird Flossenbürg zu einem transnationalen Palimpsest – zu einem Ort, auf den sich bis heute visuell und architektonisch erkennbar immerfort neue Schichten der Nutzung und Deutung durch unterschiedliche Menschen und unterschiedliche Nationen gelegt haben und um den sich immerfort multiple Erinnerungen unterschiedlicher Menschen aus unterschiedlichen Nationen und Kulturen ranken. Dieser Artikel beleuchtet den Erinnerungsort Flossenbürg durch die Linse transnationaler Forschungsansätze zu kulturellen, sozialen und politischen Räumen und aus der Perspektive transnationaler Erinnerungsforschung, wie sie auch in der Regensburger Amerikanistik betrieben werden.
description: Blick in die Wissenschaft, Bd. 28 Nr. 39 (2019): Blick in die Wissenschaft 39
title: Die Karitas webt die Einheit der Kirche
title: Der ungenähte Rock Christi in Otfrids von Weißenburg 'Evangelienbuch' (IV,28,29)
titleType: Subtitle
Creators: name: Gerhardt, Christoph
Publisher: name: Trier University
Year: 2021

description: Untersuchung zur Auslegung des ungenähten Gewands Jesu (Johannes 19,23f.) in Otfrids von Weißenburg althochdeutschem Evangelienbuch (um 870)
title: Assuan, Ägypten. Felsinschriften und Felsbilder der Region von Assuan. Die Arbeiten der Jahre 2017 und 2018
Creators: name: Seidlmayer, Stephan J.
Publisher: name: Deutsches Archäologisches Institut
Year: 2018

description: e-Forschungsberichte, Faszikel 2 (2018)
description: Rock Art and Rock Inscriptions constitute a significant component of the archaeological record in the area of the First Cataract of the Nile. Inscribed onto the natural landscape itself these epigraphic markings offer a unique chance to reconstruct the social and cultural uses of space within a complex historical setting. During the last few years the focus of the project’s work temporarily shifted from recording inscriptions in the field to working out final publications, both digital and in print. In this project phase important progress in the contextual analysis of the data could be achieved.
Inverse Limits of Uniform Covering Maps
Creators: name: LaBuz, Brendon
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 55Q52 (Primary) 55M10, 54E15 (Secondary)

description: In ``Rips complexes and covers in the uniform category'' the authors define, following James, covering maps of uniform spaces and introduce the concept of generalized uniform covering maps. Conditions for the existence of universal uniform covering maps and generalized uniform covering maps are given. This paper notes that the universal generalized uniform covering map is uniformly equivalent to the inverse limit of uniform covering maps and is therefore approximated by uniform covering maps. A characterization of generalized uniform covering maps that are approximated by uniform covering maps is provided as well as a characterization of generalized uniform covering maps that are uniformly equivalent to the inverse limit of uniform covering maps. Inverse limits of group actions that induce generalized uniform covering maps are also treated.
description: Major change in Prop 4.6 (was 5.7)
High-energy magnetic excitations from heavy quasiparticles in CeCu$_2$Si$_2$
Creators: name: Song, Yu
name: Wang, Weiyi
name: Cao, Chongde
name: Yamani, Zahra
name: Xu, Yuanji
name: Sheng, Yutao
name: Löser, Wolfgang
name: Qiu, Yiming
name: Yang, Yi-feng
name: Birgeneau, Robert J.
name: Dai, Pengcheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Magnetic fluctuations is the leading candidate for pairing in cuprate, iron-based and heavy fermion superconductors. This view is challenged by the recent discovery of nodeless superconductivity in CeCu$_2$Si$_2$, and calls for a detailed understanding of the corresponding magnetic fluctuations. Here, we mapped out the magnetic excitations in \ys{superconducting (S-type)} CeCu$_2$Si$_2$ using inelastic neutron scattering, finding a strongly asymmetric dispersion for $E\lesssim1.5$~meV, which at higher energies evolve into broad columnar magnetic excitations that extend to $E\gtrsim 5$ meV. While low-energy magnetic excitations exhibit marked three-dimensional characteristics, the high-energy magnetic excitations in CeCu$_2$Si$_2$ are almost two-dimensional, reminiscent of paramagnons found in cuprate and iron-based superconductors. By comparing our experimental findings with calculations in the random-phase approximation,we find that the magnetic excitations in CeCu$_2$Si$_2$ arise from quasiparticles associated with its heavy electron band, which are also responsible for superconductivity. Our results provide a basis for understanding magnetism and superconductivity in CeCu$_2$Si$_2$, and demonstrate the utility of neutron scattering in probing band renormalization in heavy fermion metals.
'Daz werc von salamander' bei Wolfram von Eschenbach und im 'Brief des Priesters Johannes'
Creators: name: Gerhardt, Christoph
Publisher: name: Trier University
Year: 2021

description: Untersuchung zu den naturkundlichen Vorstellungen und ihren Quellen, die mit dem Salamander-Tuch im 'Parzival' und 'Willehalm' Wolframs von Eschenbach verbunden sind
title: Asasif, Ägypten. Neues aus dem Grab des Ibi (TT 36) im Asasif auf dem thebanischen Westufer – Die Sargkammer des Psametik und die beiden Sarkophage des Ibi. Die Arbeiten der Jahre 2015 bis 2018
Creators: name: Wagner, Mareike
Publisher: name: Deutsches Archäologisches Institut
Year: 2018

description: e-Forschungsberichte, Faszikel 2 (2018)
description: The research project focuses on the sarcophagus chamber of a man called Psametik, who was buried in the tomb of Ibi in the Asasif, a part of the Theban Necropolis on the westbank of the modern city of Luxor / Upper Egypt, and the two anthropoid sarcophagi of Ibi himself. The sarcophagus chamber of Psametik was discovered in 1989 during the excavation of three shafts in the northern part of Ibi’s tomb. The chamber is decorated with well-preserved images and inscriptions. The two sarcophagi were found in situ within the burial chamber during the excavation in the 1970s. Apart from the well-preserved lid of the inner sarcophagus, which is now in the Museo Egizio in Turin, all other parts are badly damaged and in a fragmented condition.
title: Fujairah, United Arab Emirates. Archaeological investigations at the site of Dibba 76: Late Bronze Age – Iron Age multiple tombs and their buried individuals. Season 2017
Creators: name: Pfeiffer, Kristina
name: Petiti, Emmanuele
name: Reichmuth, Silvio
name: Ruben, Isabelle
Publisher: name: Deutsches Archäologisches Institut
Year: 2018

description: Research E-Papers, Faszikel 1 (2018)
description: In spring 2017 a second field season at the Emirate of Fujairah was carried out in the frame of the continuation of the cooperation between the Fujairah Tourism & Antiquities Authority and the Orient Department of the DAI. The field season focused on excavations of two Late Bronze – Iron Age multiple burials at the site of Dibba 76.
Conditional syllogistic reasoning and working memory capacity
Creators: name: Instance, Stewart T.
Publisher: name: University of British Columbia
Year: 2010

description: A relationship between working memory capacity and propositional reasoning abilities is examined within the framework of Marcus & Rips (1979) verification model of conditional syllogisms and the mental operator model of cognitive development proposed by Pascual-Leone (1970). Using the four-stage verification model to explain required cognitive processes, it is argued that development in the ability to solve conditional syllogisms can be attributed, in part, to an epigenetically determined increase in working memory capacity. With a sample composed of 77 pre-adolescent and university students, micro-computers presented individual subjects with two 40-item conditional syllogistic reasoning (CSR) tasks and a backward digit span (BDS) task, in two sessions. The results are not as predicted. Indexing memory capacity by BDS, analyses of covariance and polynomial regression analysis, fail to identify a relationship with correct CSR responses. While grade is shown to explain a major percentage of variance in CSR scores, knowledge of the .conditional rule is also identified as an important factor. Arguments are grouped according to order of difficulty and validating response time, and the results of subjects identified as knowing the conditional rule fail to agree with the groupings predicted by the Marcus & Rips model while supporting development of a single operative scheme for conditional syllogistic reasoning.
Strong Lensing Analysis of the Cluster RCS0224-0002 at $z=0.77$
Creators: name: Rzepecki, J.
name: Lombardi, M.
name: Rosati, P.
name: Bignamini, A.
name: Tozzi, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a detailed mass reconstruction of the cluster RCS0224-0002 at $z=0.773$ from the strong lensing features observed with HST/WFPC2. The mass profile is reconstructed using a parametric approach. We introduce a novel method to fit extended multiple images based on the Modified Hausdorff Distance between observed arcs and the arcs reproduced by the model. We perform the detailed error analysis of the model parameter using the MCMC method. Our model reproduces all the observed strong lensing features of the RCS0224-0002 and predicts the redshift of one of the arcs systems to be $z\approx 2.65$ (the other system has an spectroscopic redshift of $z=4.87$). The reconstructed inner mass profile is well fitted by a non-singular isothermal sphere, rather than with an NFW model. Dark matter substructure, derived from the light distribution of the most luminous cluster members, is crucial for reproducing the complexity of the quadrupole image system, which could not be achieved otherwise. The reconstructed mass distribution closely follows the light, however it is significantly shifted from the X-ray emission of the gas. The mass of RCS0224-0002 derived from the lensing model, $\approx 2\times10^{14} M_\odot$ is in a very good agreement with the one obtained from the X-ray temperature measured with deep Chandra observations.
description: 13 pages, accepted for A&A
title: Side, Türkei. Ein neuentdeckter Kaiserbrief aus Side: Gallienus hilft Side bei einer Getreideknappheit. Die Arbeiten bis 2018
Creators: name: Nollé, Johannes
Publisher: name: Deutsches Archäologisches Institut
Year: 2018

description: e-Forschungsberichte, Faszikel 1 (2018)
description: The Pamphylian city of Side was not only an important seaport and trading town, but could also expect rich yields of grain, wine, oil, and timber from its fertile territory. For this reason the emperor Gallienus was taken by surprise, when in 267 AD a letter arrived, informing him of a wheat-shortage and asking for his help. However, at this same time, the Roman Empire faced the peak of a severe crisis and the emperor was confronted with numerous, almost unsoluble problems. Gallienus, nonetheless, supported the Sidetans through an exemption from the customs duties on imported wheat. Thanks to this measure, the emperor pointed out, the Sidetans were to save considerable sums of money as well as to attract grain ships more easily. We are informed of this noteworthy event in the history of Side by a stele that was recently unearthed by building activities near the ancient port of Side at the very tip of the peninsula. The stele had been erected there in order to inform traders about the customs incentives and to emphasize the emperor’s generosity and affection for his subjects.
Exempel und Auslegung in mittelalterlicher Literatur
Creators: name: Gerhardt, Christoph
Publisher: name: Trier University
Year: 2021

description: Am Beispiel der christlichen Tierallegorese des 'Physiologus' und ihrer Verwendung in der mittelhochdeutschen Exempel-Literatur (sog. 'bispel') wird gezeigt, wie die Exempel auf ihren Auslegungszweck hin gestaltet sind.