cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An Average Analysis of Backtracking on Random Constraint Satisfaction Problems
Creators: name: Xu, Ke
name: Li, Wei
Publisher: name: arXiv
Year: 2000
Subjects: subject: Computational Complexity (cs.CC)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: F.2.2; I.2.8

description: In this paper we propose a random CSP model, called Model GB, which is a natural generalization of standard Model B. It is proved that Model GB in which each constraint is easy to satisfy exhibits non-trivial behaviour (not trivially satisfiable or unsatisfiable) as the number of variables approaches infinity. A detailed analysis to obtain an asymptotic estimate (good to 1+o(1)) of the average number of nodes in a search tree used by the backtracking algorithm on Model GB is also presented. It is shown that the average number of nodes required for finding all solutions or proving that no solution exists grows exponentially with the number of variables. So this model might be an interesting distribution for studying the nature of hard instances and evaluating the performance of CSP algorithms. In addition, we further investigate the behaviour of the average number of nodes as r (the ratio of constraints to variables) varies. The results indicate that as r increases, random CSP instances get easier and easier to solve, and the base for the average number of nodes that is exponential in r tends to 1 as r approaches infinity. Therefore, although the average number of nodes used by the backtracking algorithm on random CSP is exponential, many CSP instances will be very easy to solve when r is sufficiently large.
description: 20 pages, submitted to Annals of Mathematics and Artificial Intelligence
Vocal Development Landmarks Interview (Moeller et al., 2019)
Creators: name: Moeller, Mary Pat
name: Thomas, Anne E.
name: Oleson, Jacob
name: Ambrose, Sophie E.
Publisher: name: ASHA journals
Year: 2019
Subjects: subject: 170204 Linguistic Processes (incl. Speech Production and Comprehension)
subject: FOS: Psychology

description: Purpose: Tracking of infants’ progression through early vocal stages supports the identification of children at risk for language delays and guides early intervention for children with disabilities. However, few clinical tools are available to support systematic assessment of infants’ early vocal development. This study sought to develop and conduct a preliminary evaluation of the validity of a parent report tool designed for this purpose, the Vocal Development Landmarks Interview (VDLI).Method: The participants were caregivers of 160 typically developing 6- to 21-month-old infants. Caregivers participated in the VDLI, which uses audio samples of authentic infant vocalizations to query parents regarding their children’s vocal behaviors. The VDLI yields 3 subscale scores (Precanonical, Canonical, and Word) and a total score. Caregivers also completed sections of the Communication and Symbolic Behavior Scales Developmental Profile Caregiver Questionnaire that yielded a speech composite score.Results: Cross-sectional analyses showed that the VDLI is sensitive to age and captures the expected developmental trajectories of vocal behaviors. A strong, positive correlation (r = .93) was found between VDLI total scores and the Communication and Symbolic Behavior Scales Developmental Profile speech composite score, indicating concurrent validity. Subscales were found to be internally consistent.Conclusion: Preliminary findings of sensitivity to age, concurrent validity, and internal consistency provide support for the eventual use of the VDLI as a clinical tool for tracking vocal and early verbal milestones. Future research will explore the level of concordance between parent report and researcher observations of child vocal behaviors.
Supplemental Material S1. The Vocal Development Landmarks Interview (VDLI): Clinical Version.
Moeller, M. P., Thomas, A. E., Oleson, J., & Ambrose, S. E. (2019). Validation of a parent report tool for monitoring early vocal stages in infants. Journal of Speech, Language, and Hearing Research, 62, 2245–2257. https://doi.org/10.1044/2019_JSLHR-S-18-0485
A Choice of Illusions: Belief, Relativism, and Modern Literature
Creators: Morrison, Alastair
Publisher: name: Columbia University
Year: 2015
Subjects: Art, Victorian
Modernism (Literature)
Religion in literature
British literature
Irish literature
Literature, Modern
Religion
History

description: This dissertation considers how defenses of traditional faith in Britain have adapted to new frontiers of cultural relativism and religious difference. Its contention is that poetry has become central to such defenses. Relativistic thinking would seem to dispose against metaphysical belief; poetry, as a parallel claimant for cultural and expressive particularity, and as a sensuously non-empirical rhetorical medium, offers a way of muffling the dissonance that might otherwise arise from positioning difference and particularity as pretext for claims of universal truth. This study traces formal and rhetorical innovations from the Victorian crisis of faith forward to literary modernism, with a brief conclusion contemplating related developments in more contemporary poetry and religious thought in Britain.
Presence of Escherichia coli, Trueperella pyogenes, α-hemolytic streptococci, and coagulase-negative staphylococci and prevalence of subclinical endometritis
Creators: name: Sens, Antje
name: Heuwieser, Wolfgang
Publisher: name: Freie Universität Berlin
Year: 2013
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::630 Landwirtschaft

description: Subclinical endometritis (SCE) has a severe negative effect on reproductive performance of dairy cows. Different studies have shown a wide variety of cut points for the polymorphonuclear neutrophilic leukocyte (PMNL) percentage to define SCE and differing sampling times. Possible risk factors for SCE, such as low body condition score, hyperketonemia, and increased haptoglobin concentrations have been demonstrated. The aim of this study was to determine the relationship between bacterial findings in the uterus and PMNL in the early postpartum period and to compare 2 classification schemes for the diagnosis of SCE. Cytological and bacteriological samples from the uterus were taken from 149 cows at 2 consecutive times postpartum [10±1 and 24±1d in milk (DIM)] and additionally, 131 cows were sampled at 21 to 27 DIM. For sample collection, the cytobrush technique was used and vaginal discharge was examined by vaginoscopy. Polymorphonuclear neutrophilic leukocyte cut points were set at 5, 10, and 18%. Cows positive with α-hemolytic streptococci at 10±1 DIM had significant higher PMNL percentages at 21 to 27 DIM and greater median days to pregnancy (193.5d) than cows not infected (123.0d). Cows with Trueperella pyogenes at 10±1 DIM had higher odds (5.2) of having more than 18% PMNL at 21 to 27 DIM compared with cows without infection. Escherichia coli had no effect on the prevalence of SCE regardless of the cut point. Primiparous cows with more than 18% PMNL had greater median days to pregnancy (144.5 d) than cows with less than 5% (80.0d) or cows between 5 and 18% PMNL (68.0d). Cows between 5 and 18% PMNL or 10 and 18% PMNL showed the best reproductive performance. The results demonstrate that an early infection with α-hemolytic streptococci increased the PMNL percentage 2wk later and that 18% PMNL at 21 to 27 DIM was a predictive cut point for primiparous cows to diagnose animals with or without SCE.
From Massively Parallel Algorithms and Fluctuating Time Horizons to Non-equilibrium Surface Growth
Creators: name: Korniss, G.
name: Toroczkai, Z.
name: Novotny, M. A.
name: Rikvold, P. A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We study the asymptotic scaling properties of a massively parallel algorithm for discrete-event simulations where the discrete events are Poisson arrivals. The evolution of the simulated time horizon is analogous to a non-equilibrium surface. Monte Carlo simulations and a coarse-grained approximation indicate that the macroscopic landscape in the steady state is governed by the Edwards-Wilkinson Hamiltonian. Since the efficiency of the algorithm corresponds to the density of local minima in the associated surface, our results imply that the algorithm is asymptotically scalable.
description: RevTex, 4 pages, 3 figures
Atheta (Dilacra) lindbergiella BRUNDIN 1948
Creators: name: Assing, V.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Atheta
Atheta lindbergiella

description: Atheta (Dilacra) lindbergiella BRUNDIN 1948
M a t e r i a l e x a m i n e d Portugal: 2, 11 [det. Vogel], Algarve, Praia de Faro, 37°02'N, 7°59'W, 5 m, laguna, 26.III.2002, leg. Meybohm (cAss).
C o m m e n t: According to SMETANA (2004), this species was previously known only from Spain and Morocco. The above specimens represent the first record from Portugal.
description: Published as part of Assing, V., 2010, Four new species and additional records of Staphylinidae from Spain, primarily from the south (Insecta: Coleoptera), pp. 1105-1124 in Linzer biologische Beiträge 42 (2) on page 1113, DOI: 10.5281/zenodo.10106018
Effective theory for ultracold strongly interacting fermionic atoms in two dimensions
Creators: name: Wu, Fan
name: Hu, Jianshen
name: He, Lianyi
name: Liu, Xia-Ji
name: Hu, Hui
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We propose a minimal theoretical model for the description of a two-dimensional (2D) strongly interacting Fermi gas confined transversely in a tight harmonic potential, and present accurate predictions for its equation of state and breathing mode frequency. We show that the minimal model Hamiltonian needs at least two independent interaction parameters, the 2D scattering length and effective range of interactions, in order to quantitatively explain recent experimental measurements at nonzero filling factor $N/N_{2D}$, where $N$ is the total number of atoms and $N_{2D}$ is the threshold number to reach the 2D limit. We therefore resolve in a satisfactory way the puzzling experimental observations of reduced equations of state and reduced quantum anomaly in breathing mode frequency, due to small yet non-negligible $N/N_{2D}$. We argue that a conclusive demonstration of the much-anticipated quantum anomaly is possible at a filling factor of a few percent. Our establishment of the minimal model for 2D ultracold atoms could be crucial to understanding the fermionic Berezinskii-Kosterlitz-Thouless transition in the strongly correlated regime.
description: 6 pages, 5 figures
Cue Phrase Classification Using Machine Learning
Creators: name: Litman, D. J.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Cue phrases may be used in a discourse sense to explicitly signal discourse structure, but also in a sentential sense to convey semantic rather than structural information. Correctly classifying cue phrases as discourse or sentential is critical in natural language processing systems that exploit discourse structure, e.g., for performing tasks such as anaphora resolution and plan recognition. This paper explores the use of machine learning for classifying cue phrases as discourse or sentential. Two machine learning programs (Cgrendel and C4.5) are used to induce classification models from sets of pre-classified cue phrases and their features in text and speech. Machine learning is shown to be an effective technique for not only automating the generation of classification models, but also for improving upon previous results. When compared to manually derived classification models already in the literature, the learned models often perform with higher accuracy and contain new linguistic insights into the data. In addition, the ability to automatically construct classification models makes it easier to comparatively analyze the utility of alternative feature representations of the data. Finally, the ease of retraining makes the learning approach more scalable and flexible than manual methods.
description: See http://www.jair.org/ for any accompanying files
A Cerebellum-like Circuit in the Auditory System Cancels Self-Generated Sounds
Creators: Singla, Shobhit
Publisher: name: Columbia University
Year: 2016
Subjects: subject: Cochlear nucleus
subject: Ear
subject: Sound
subject: Auditory perception
subject: Cerebellum
subject: Neurosciences
subject: FOS: Clinical medicine

description: The first stage of mammalian auditory processing occurs within the dorsal and ventral divisions of the cochlear nucleus. The dorsal cochlear nucleus (DCN) is remarkable in that it shares striking similarities with the cerebellum in terms of its development, gene expression patterns, and anatomical organization. Notably, principal cells of the DCN integrate auditory nerve input with a diverse array of signals conveyed by a mossy fiber- granule cell system. Yet how the elaborate cerebellum-like circuitry of DCN contributes to early auditory processing has been a longstanding puzzle. The work in this thesis shows that, in mice, that the DCN functions to cancel responses to self-generated sounds. While the DCN and ventral cochlear nucleus (VCN) neurons respond similarly to externally-generated acoustic stimuli, sounds generated by licking behavior evoke much weaker responses in DCN than in VCN. Recordings in deafened mice revealed non- auditory signals related to licking in Purkinje-like neurons of DCN. Moreover, silencing somatosensory mossy fiber inputs revealed prominent DCN responses to sounds generated by licking, suggesting that these inputs normally function to cancel responses to self-generated sounds. Finally, I show that this cancellation is not fixed, but involves an adaptive process whereby neural responses correlated with the animal’s own behavior are gradually reduced. Together, these findings suggest that the fundamental process of distinguishing self-generated from external stimuli begins at the very first stage of
      mammalian auditory processing. Related adaptive filtering functions have been described for cerebellum-like sensory structures in fish and hypothesized for the mammalian cerebellum. Hence our findings also suggest that, despite their wide phylogenetic separation, different cerebellum-like structures and the cerebellum itself may all perform a similar computation.
Visual Anomaly Detection in Event Sequence Data
Creators: name: Guo, Shunan
name: Jin, Zhuochen
name: Chen, Qing
name: Gotz, David
name: Zha, Hongyuan
name: Cao, Nan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Anomaly detection is a common analytical task that aims to identify rare cases that differ from the typical cases that make up the majority of a dataset. When applied to the analysis of event sequence data, the task of anomaly detection can be complex because the sequential and temporal nature of such data results in diverse definitions and flexible forms of anomalies. This, in turn, increases the difficulty in interpreting detected anomalies. In this paper, we propose an unsupervised anomaly detection algorithm based on Variational AutoEncoders (VAE) to estimate underlying normal progressions for each given sequence represented as occurrence probabilities of events along the sequence progression. Events in violation of their occurrence probability are identified as abnormal. We also introduce a visualization system, EventThread3, to support interactive exploration and interpretations of anomalies within the context of normal sequence progressions in the dataset through comprehensive one-to-many sequence comparison. Finally, we quantitatively evaluate the performance of our anomaly detection algorithm and demonstrate the effectiveness of our system through a case study.
Linear Complexity Hexahedral Mesh Generation
Creators: name: Eppstein, David
Publisher: name: arXiv
Year: 1998
Subjects: subject: Computational Geometry (cs.CG)
subject: FOS: Computer and information sciences
subject: F.2.2

description: We show that any polyhedron forming a topological ball with an even number of quadrilateral sides can be partitioned into O(n) topological cubes, meeting face to face. The result generalizes to non-simply-connected polyhedra satisfying an additional bipartiteness condition. The same techniques can also be used to reduce the geometric version of the hexahedral mesh generation problem to a finite case analysis amenable to machine solution.
description: 12 pages, 17 figures. A preliminary version of this paper appeared at the 12th ACM Symp. on Computational Geometry. This is the final version, and will appear in a special issue of Computational Geometry: Theory and Applications for papers from SCG '96
Atheta (Philhygra) obtusangula JOY 1913
Creators: name: Assing, V.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Atheta
Atheta obtusangula

description: Atheta (Philhygra) obtusangula JOY 1913
M a t e r i a l e x a m i n e d Spain: A r a g ó n 1 ex. [det. Feldmann], Zaragoza, Sierra de Moncayo, Agramonte, 1300 m, 20.V.1999, leg. Feldmann (cFel). A s t u r i a s: 1 ex. [det. Feldmann], NE Puerto de Ventana, 13.VI.2000, leg. Assmann (cFel). Portugal: 3 exs., SW Montalegre, Parafita, 41°46'N, 7°50'W, 900 m, leaf litter near creek, 22.III.2002, leg. Meybohm (cAss).
C o m m e n t: The above specimens represent the first records from Spain and Portugal.
description: Published as part of Assing, V., 2010, Four new species and additional records of Staphylinidae from Spain, primarily from the south (Insecta: Coleoptera), pp. 1105-1124 in Linzer biologische Beiträge 42 (2) on page 1113, DOI: 10.5281/zenodo.10106018
A criterion for the triviality of the centralizer for vector fields and applications
Creators: name: Bonomo, Wescley
name: Varandas, Paulo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Dynamical Systems (math.DS)
subject: General Topology (math.GN)
subject: FOS: Mathematics

description: In this paper we establish a criterion for the triviality of the $C^1$-centralizer for vector fields and flows. In particular we deduce the triviality of the centralizer at homoclinic classes of $C^r$ vector fields ($r\ge 1$). Furthermore, we show that the set of flows whose $C^1$-centralizer is trivial include: (i) $C^1$-generic volume preserving flows, (ii) $C^2$-generic Hamiltonian flows on a generic and full Lebesgue measure set of energy levels, and (iii) $C^1$-open set of non-hyperbolic vector fields (that admit a Lorenz attractor). We also provide a criterion for the triviality of the $C^0$-centralizer of continuous flows.
description: 18 pages, 3 figures, to appear in Journal of Differential Equations
Λιμενική πολιτική στα πλαίσια της πράσινης συμφωνίας και της βιώσιμης γαλάζιας οικονομίας
Creators: name: Βγενόπουλος, Φώτιος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2024
Subjects: subject: Λιμάνια
subject: Λιμενική πολιτική
subject: Πράσινη συμφωνία
subject: Βιώσιμη γαλάζια οικονομία

description: Η «Βιώσιμη Γαλάζια Οικονομία», έννοια αλληλένδετη με τη «Πράσινη Συμφωνία», αποτελεί καίρια στρατηγική της Ε.Ε. για την μακροπρόθεσμη στήριξη του θαλάσσιου και ναυτιλιακού τομέα. Στοχεύει στη βιώσιμη χρήση των θαλάσσιων πόρων και στην οικονομική πρόοδο με ταυτόχρονη προστασία και διατήρηση του θαλάσσιου περιβάλλοντος. Μέσω της «Πράσινης Συμφωνίας» επιδιώκεται η ομαλή μετάβαση της Ευρώπης σε κλιματικά ουδέτερη ήπειρο έως το 2050. Στόχο της παρούσας Διπλωματικής Εργασίας αποτελεί η συγκριτική μελέτη του επιπέδου «Βιώσιμης Γαλάζιας Οικονομίας» των πέντε μεγαλύτερων λιμανιών σε παγκόσμιο και εθνικό επίπεδο. Βασικά κριτήρια αξιολόγησης ορίζονται η οικονομική, κοινωνική και περιβαλλοντική βιωσιμότητα. Συμπερασματικά, τα πλέον κερδοφόρα λιμάνια στην Αμερική, Ασία και Ευρώπη δεν έχουν συμμορφωθεί ικανοποιητικά με την πολιτική της «Γαλάζιας Ανάπτυξης», όπως και η Ελλάδα. Τα πέντε μεγαλύτερα ελληνικά λιμάνια αποτελούν το 60% της οικονομικής αξίας όλων των εγχώριων λιμανιών και συνεπώς κρίνεται επιτακτική ανάγκη η μεταστροφή τους προς τη βιωσιμότητα.
A Case Study of the Preventing Academic Failure Orton-Gillingham Approach With Five Students Who Are Deaf or Hard of Hearing: Using the Mediating Tool of Cued Speech
Creators: Montgomery, Jennifer Lynn
Publisher: name: Columbia University
Year: 2013
Subjects: Special education
Reading
Education

description: Struggling deaf readers, like struggling readers with dyslexia, share similarities in their difficulty with phonemic awareness, decoding, fluency, vocabulary, and comprehension. Orton-Gillingham instruction is used to remediate these difficulties among hearing readers, but data is needed on its effectiveness with deaf students. Five subjects, who were severely deaf or hard of hearing, participated in a year long case study analyzing the impact of an Orton-Gillingham approach, supported with Cued Speech, on the development of their reading skills. Participants ranged from kindergarten to Grade 5, had additional learning, language, and socioeconomic challenges, and were mainstreamed in a public school district. Data were obtained in the fall, winter, and spring of one academic year from assessments (DRA, DIBELS, PAF), interviews with classroom teachers, and field notes. Results demonstrated that all five students made a year of growth, or more, on their reading achievement, similarly to expected yearly progress of students without disabilities. Results indicated that Orton-Gillingham instruction, supported with Cued Speech, may mitigate reading challenges among severely deaf or hard of hearing students in the mainstream. Additional studies are needed to verify the results in different educational settings.
Fate of the Landau-Yang theorem for twisted photons
Creators: name: Ivanov, Igor P.
name: Serbo, Valery G.
name: Zhang, Pengming
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Landau-Yang theorem is sometimes formulated as a selection rule forbidding two real (that is, non-virtual) photons with zero total momentum to be in the state of the total angular momentum J=1. In this paper we discuss whether the theorem itself and this particular formulation can be extended to a pair of two {\em twisted} photons, which carry orbital angular momentum with respect to their propagation direction. We point out possible sources of confusion, which may arise both from the unusual features of twisted photons and from the fact that usual proofs of the Landau-Yang theorem operate in the center of motion reference frame, which, strictly speaking, exists only for plane waves. We show with an explicit calculation that a pair of twisted photons does have a non-zero overlap with the J=1 state. What is actually forbidden is production of a spin-1 particle by such a photon pair, and in this formulation the Landau-Yang theorem is rock-solid. Although both the twisted photon pair and the spin-1 particle can exist in the J=1 state, these two systems just cannot be coupled in a gauge-invariant and Lorentz invariant manner respecting Bose symmetry.
description: 12 pages, no figures; v2: extra clarifications, published in the "Joint Special Issue on Twisted Waves and Fields" of Journal of Optics and Journal of Physics B
Cremastus inflatipes ROMAN 1939
Creators: name: Kolarov, J.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Cremastus
Cremastus inflatipes

description: Cremastus inflatipes ROMAN 1939
 Cremastus inflatipes ROMAN 1939. Ent. Tidskr. p. 203.
 Cremastus inflatipes: SEDIVY 1970: 29, Serbia; KOLAROV 1982: 66; KOLAROV 1997: 178, Serbia; KOLAROV & BEYARSLAN 1999: 3, Serbia.
D i s t r i b u t i o n: Finland, Italy, Croatia, Serbia, Romania, Bulgaria and Turkey.
description: Published as part of Kolarov, J., 2008, A Catalogue of the [former] Yugoslavian Ichneumonidae (Hymenoptera, Insecta), pp. 1585-1739 in Linzer biologische Beiträge 40 (2) on page 1611, DOI: 10.5281/zenodo.5431642
Homotopy invariance of convolution products
Creators: name: Sagave, Steffen
name: Schwede, Stefan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 55P99, 55U35, 18D50

description: The purpose of this paper is to show that various convolution products are fully homotopical, meaning that they preserve weak equivalences in both variables without any cofibrancy hypothesis. We establish this property for diagrams of simplicial sets indexed by the category of finite sets and injections and for tame $M$-simplicial sets, with $M$ the monoid of injective self-maps of the positive natural numbers. We also show that a certain convolution product studied by Nikolaus and the first author is fully homotopical. This implies that every presentably symmetric monoidal $\infty$-category can be represented by a symmetric monoidal model category with a fully homotopical monoidal product.
description: v2: 31 pages, exposition improved
Echo spectroscopy and quantum stability of trapped atoms
Creators: name: Andersen, M. F.
name: Kaplan, A.
name: Davidson, N.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We investigate the dephasing of ultra cold ^{85}Rb atoms trapped in an optical dipole trap and prepared in a coherent superposition of their two hyperfine ground states by interaction with a microwave pulse. We demonstrate that the dephasing, measured as the Ramsey fringe contrast, can be reversed by stimulating a coherence echo with a pi-pulse between the two pi/2 pulses, in analogy to the photon echo. We also demonstrate that the failure of the echo for certain trap parameters is due to dynamics in the trap, and thereby that ''echo spectroscopy'' can be used to study the quantum dynamics in the trap even when more than 10^6 states are thermally populated, and to study the crossover from quantum (where dynamical decoherence is supressed) to classical dynamics.
title: Οι επιπτώσεις της πανδημίας του Covid-19 στην ελληνική ναυλαγορά - Στατιστική ανάλυση δεδομένων
title: The effects of Covid-19 pandemic in the Greek freight market - Statistical data analysis
titleType: AlternativeTitle
Creators: name: Μπουνάκη, Αικατερίνη
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2024
Subjects: subject: Ναυλαγορά
subject: Covid-19
subject: Επιπτώσεις
subject: Στατιστική ανάλυση δεδομένων

description: Πρόκειται για μια στατιστική ανάλυση δεδομένων για τις διακυμάνσεις των ναύλων, της ελληνικής ναυλαγοράς ,κατά την περίοδο της Πανδημίας του Covid-19.
title: Medialer Diskurs um die Digitalisierung der Schulbildung zur Schulschließung in der Corona-Krise: Eine medienpädagogische Analyse zu Erwartungen, Risiken und Chancen
Creators: name: Britten, Andreas
Publisher: name: UNSPECIFIED
Year: 2021

description: Diese Arbeit stellt sich der Frage, welche gesellschaftlichen Erwartungshaltungen in Bezug auf den Einsatz digitaler Medien im Schulalltag über den medialen Diskurs zur Schulschließung in der Corona-Krise kanalisiert und welche Risiken und Chancen dabei thematisiert wurden. Um dieser Frage nachzugehen wird eine mediale Diskursanalyse durchgeführt. Wissenschaftlicher Bezug stellen dabei entsprechend relevante Diskurse der Medienpädagogik dar. Ein zentraler Aspekt der durchgeführten Analyse ist es, die aus dem medialen Diskurs abgeleiteten Erwartungen sowie die dort thematisierten Risiken und Chancen einer digitalisierten Schulbildung auf ausgewählte, medienpädagogische Ansätze zurückzuführen, diese dadurch wissenschaftlich zu verorten, abzugleichen und zu diskutieren. Rückwirkend können dadurch auch Erkenntnisse über die gesellschaftliche Relevanz der im medialen Diskurs identifizierten, medienpädagogischen Ansätze gewonnen werden.
Atheta (Dimetrota) intermedia
Creators: name: Assing, V.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Atheta
Atheta intermedia

description: Atheta (Dimetrota) intermedia (THOMSON 1852)
M a t e r i a l e x a m i n e d Spain: G a l i c i a: 1 ex. [det. Feldmann], Lugo, Sierra de Ancares, Degrada, 1600 m, 25.V.1999, leg. Feldmann (cFel).
C o m m e n t: This species is not listed for Spain by SMETANA (2004), but GAMARRA & OUTERELO (2005) report it from one province.
description: Published as part of Assing, V., 2010, Four new species and additional records of Staphylinidae from Spain, primarily from the south (Insecta: Coleoptera), pp. 1105-1124 in Linzer biologische Beiträge 42 (2) on page 1114, DOI: 10.5281/zenodo.10106018
title: Linear Parameter-Varying (LPV) Buckling Control of an Imperfect Beam-Column Subject to Time-Varying Axial Loads
Creators: name: Schaeffner, Maximilian
name: Platz, Roland
Publisher: name: Springer
Year: 2021

description: In this paper, active buckling control of an imperfect slender beam-column with circular cross-section by piezo-elastic supports and Linear Parameter-Varying (LPV) control is investigated experimentally. The beam-column is loaded by a time-varying axial compressive load resulting in a lateral deflection of the beam-column due to imperfections. A finite element model of the beam-column under axial load is designed as an LPV system. A reduced and augmented modal model is used to design a quadratically stable gain scheduled LPV control. The control is implemented in an experimental test setup and the maximum bearable loads of the beam-column are obtained. Two cases are tested: with and without LPV control or, respectively, active and passive configuration. With the proposed active LPV buckling control it is possible to compensate the influence of beam-column imperfections and to compensate uncertainty in mounting and loading that in passive configuration without LPV control may lead to early buckling. Eventually, the maximum bearable axial compressive load is increased above the theoretical critical buckling load.
Historiography of Space in Homer and Herodotos
Creators: name: Ford, Susan
Publisher: name: The Australian National University
Year: 2015
Subjects: Homer
Herodotos
Herodotus
space
geography
ancient geography
naive geography
common sense geography
wayfinding
cognitive model

description: The Homeric poems and the Histories of Herodotos are crucial to our understanding of the intellectual life of the ancient Greeks. They are the earliest extant poetry and the earliest extant prose; they have never been lost and have always been read. Knowledge of the external world and of other peoples, though far from formalised as the study of ‘geography’ in this period, is prominent throughout the poems and the Histories: most readers of the Iliad get a very strong impression of place from their interaction with the text: the plain before the great citadel of Troy where the battle is fought, and the homes of the Trojan allies. Similarly, the Odyssey persuades many that they know and can recognise Ithake and surrounding islands. The Histories are an encyclopaedia of geographical knowledge of fifth-century Greeks which, conspicuously, includes knowledge of Skythia, Egypt and Persia as ‘other’ lands. In spite of this strong impression of place enduring even into the modern world it is not easy to know exactly why and how it arises and what narrative structures and strategies create it. The Homeric poems and the Histories are fundamentally about people and places (not cosmologies, or plants, or machines). Their completeness and length make it possible to study the spatial concepts held by their creators in detail. The thesis offered is that there have been three largely independent approaches to understanding the thinking about space in these texts and that by studying these approaches we can learn more about what categories of space are presented, thus avoiding a petitio elenchi. The three approaches discussed with this purpose in mind are autopsy, or retracing of steps, graphic demonstrations, and linguistic analyses (for which I present a number of case studies).
Pristomerus luridus KOKUJEV 1905
Creators: name: Kolarov, J.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Pristomerus
Pristomerus luridus

description: Pristomerus luridus KOKUJEV 1905
 Pristomerus luridus KOKUJEV 1905. Russkoe Entomologicheskoye Obozreniye 5: 10.
 Pristomerus pallidus: THOMSON 1890: 1456, Croatia; STROBL 1904: 95, Croatia; SCHMIEDEKNECHT 1910: 2018, Croatia; MEYER 1935: 418; TOWNES et al. 1965: 306; AUBERT 1968: 195, Croatia; SEDIVY 1969: 36; SEDIVY 1970: 12; FITTON 1982: 79; HORSTMANN 1990: 27; KOLAROV 1997: 172, Croatia.
 Pristomerus luridus: YU & HORSTMANN 1997: 198.
D i s t r i b u t i o n: Algeria, Tunisia, Europe, Georgia, Turkey, Kyrgyzstan, Uzbekistan, Turkmenistan, Tajikistan and Kazakhstan.
description: Published as part of Kolarov, J., 2008, A Catalogue of the [former] Yugoslavian Ichneumonidae (Hymenoptera, Insecta), pp. 1585-1739 in Linzer biologische Beiträge 40 (2) on page 1612, DOI: 10.5281/zenodo.5431642
Deep Multicameral Decoding for Localizing Unoccluded Object Instances from a Single RGB Image
Creators: name: Grard, Matthieu
name: Dellandréa, Emmanuel
name: Chen, Liming
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Occlusion-aware instance-sensitive segmentation is a complex task generally split into region-based segmentations, by approximating instances as their bounding box. We address the showcase scenario of dense homogeneous layouts in which this approximation does not hold. In this scenario, outlining unoccluded instances by decoding a deep encoder becomes difficult, due to the translation invariance of convolutional layers and the lack of complexity in the decoder. We therefore propose a multicameral design composed of subtask-specific lightweight decoder and encoder-decoder units, coupled in cascade to encourage subtask-specific feature reuse and enforce a learning path within the decoding process. Furthermore, the state-of-the-art datasets for occlusion-aware instance segmentation contain real images with few instances and occlusions mostly due to objects occluding the background, unlike dense object layouts. We thus also introduce a synthetic dataset of dense homogeneous object layouts, namely Mikado, which extensibly contains more instances and inter-instance occlusions per image than these public datasets. Our extensive experiments on Mikado and public datasets show that ordinal multiscale units within the decoding process prove more effective than state-of-the-art design patterns for capturing position-sensitive representations. We also show that Mikado is plausible with respect to real-world problems, in the sense that it enables the learning of performance-enhancing representations transferable to real images, while drastically reducing the need of hand-made annotations for finetuning. The proposed dataset will be made publicly available.
description: International Journal of Computer Vision, Springer Verlag, 2020, Special Issue on Deep Learning for Robotic Vision
Similarity-Based Models of Word Cooccurrence Probabilities
Creators: name: Dagan, Ido
name: Lee, Lillian
name: Pereira, Fernando C. N.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.2.7;I.2.6

description: In many applications of natural language processing (NLP) it is necessary to determine the likelihood of a given word combination. For example, a speech recognizer may need to determine which of the two word combinations ``eat a peach'' and ``eat a beach'' is more likely. Statistical NLP methods determine the likelihood of a word combination from its frequency in a training corpus. However, the nature of language is such that many word combinations are infrequent and do not occur in any given corpus. In this work we propose a method for estimating the probability of such previously unseen word combinations using available information on ``most similar'' words. We describe probabilistic word association models based on distributional word similarity, and apply them to two tasks, language modeling and pseudo-word disambiguation. In the language modeling task, a similarity-based model is used to improve probability estimates for unseen bigrams in a back-off language model. The similarity-based method yields a 20% perplexity improvement in the prediction of unseen bigrams and statistically significant reductions in speech-recognition error. We also compare four similarity-based estimation methods against back-off and maximum-likelihood estimation methods on a pseudo-word sense disambiguation task in which we controlled for both unigram and bigram frequency to avoid giving too much weight to easy-to-disambiguate high-frequency configurations. The similarity-based methods perform up to 40% better on this particular task.
description: 26 pages, 5 figures
Nonsingular bouncing cosmology from general relativity
Creators: name: Klinkhamer, F. R.
name: Wang, Z. L.
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate a particular type of classical nonsingular bouncing cosmology, which results from general relativity if we allow for degenerate metrics. The simplest model has a matter content with a constant equation-of-state parameter and we get the modified Hubble diagrams for both the luminosity distance and the angular diameter distance. Based on these results, we present a Gedankenexperiment to determine the length scale of the spacetime defect which has replaced the big bang singularity. A possibly more realistic model has an equation-of-state parameter which is different before and after the bounce. This last model also provides an upper bound on the defect length scale.
description: 16 pages, 7 figures, v6: published version
Additional file 1 of 3-Year outcomes in patients with heavily calcified lesions undergoing percutaneous coronary intervention using cutting balloons
Creators: name: Liu, Wei
name: Yao, Yutong
name: Jiang, Zhi
name: Tian, Longhai
name: Song, Bo
name: Liu, Hui
name: Deng, Shiyan
name: Luo, Rui
name: Wei, Fang
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Additional file 1: Table S1, S2 and Figure S1.
Practical Reasoning for Very Expressive Description Logics
Creators: name: Horrocks, Ian
name: Sattler, Ulrike
name: Tobies, Stephan
Publisher: name: arXiv
Year: 2000
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: F.4.1, I.2.3, I.2.4

description: Description Logics (DLs) are a family of knowledge representation formalisms mainly characterised by constructors to build complex concepts and roles from atomic ones. Expressive role constructors are important in many applications, but can be computationally problematical. We present an algorithm that decides satisfiability of the DL ALC extended with transitive and inverse roles and functional restrictions with respect to general concept inclusion axioms and role hierarchies; early experiments indicate that this algorithm is well-suited for implementation. Additionally, we show that ALC extended with just transitive and inverse roles is still in PSPACE. We investigate the limits of decidability for this family of DLs, showing that relaxing the constraints placed on the kinds of roles used in number restrictions leads to the undecidability of all inference problems. Finally, we describe a number of optimisation techniques that are crucial in obtaining implementations of the decision procedures, which, despite the worst-case complexity of the problem, exhibit good performance with real-life problems.
MERCADO DE APOIO OFFSHORE NO BRASIL – PRESTAÇÃO DE BENS E SERVIÇOS
Creators: name: Gomes, Priscila
Publisher: name: figshare
Year: 2019
Subjects: subject: 91406 Petroleum and Reservoir Engineering
subject: FOS: Environmental engineering

description: The reasons for economic development vary from one region to another and from one country to another. Among these factors can be highlighted: education, infrastructure, resources and capital. Each country chooses which factor will prioritize for its development and growth. Within infrastructure, logistics, is a crucial element for the basic development of an economy. Being a crucial factor in the growth of a nation, logistics need to be planned so that it has efficiency and effectiveness in its activities. Already in the service provision, there is also a strong demand for high performance in relation to customer satisfaction, perceived quality of service and delivery time, for example.Thus, the planning and good logistics management of service are decisive factors for companies that seek to stand out and survive in the competitive market. The focal point of this work is to present the service logistics as a key element in the offshore industry, and to expose its bottlenecks in Brazil to emphasize and boost the need for development in the sector.
Systematic comparison between methods for the detection of influential spreaders in complex networks
Creators: name: Erkol, Sirag
name: Castellano, Claudio
name: Radicchi, Filippo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Influence maximization is the problem of finding the set of nodes of a network that maximizes the size of the outbreak of a spreading process occurring on the network. Solutions to this problem are important for strategic decisions in marketing and political campaigns. The typical setting consists in the identification of small sets of initial spreaders in very large networks. This setting makes the optimization problem computationally infeasible for standard greedy optimization algorithms that account simultaneously for information about network topology and spreading dynamics, leaving space only to heuristic methods based on the drastic approximation of relying on the geometry of the network alone. The literature on the subject is plenty of purely topological methods for the identification of influential spreaders in networks. However, it is unclear how far these methods are from being optimal. Here, we perform a systematic test of the performance of a multitude of heuristic methods for the identification of influential spreaders. We quantify the performance of the various methods on a corpus of 100 real-world networks; the corpus consists of networks small enough for the application of greedy optimization so that results from this algorithm are used as the baseline needed for the analysis of the performance of the other methods on the same corpus of networks. We find that relatively simple network metrics, such as adaptive degree or closeness centralities, are able to achieve performances very close to the baseline value, thus providing good support for the use of these metrics in large-scale problem settings....
description: 10 pages, 5 figures, 3 tables
Inferring Acceptance and Rejection in Dialogue by Default Rules of Inference
Creators: name: Walker, Marilyn A.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: This paper discusses the processes by which conversants in a dialogue can infer whether their assertions and proposals have been accepted or rejected by their conversational partners. It expands on previous work by showing that logical consistency is a necessary indicator of acceptance, but that it is not sufficient, and that logical inconsistency is sufficient as an indicator of rejection, but it is not necessary. I show how conversants can use information structure and prosody as well as logical reasoning in distinguishing between acceptances and logically consistent rejections, and relate this work to previous work on implicature and default reasoning by introducing three new classes of rejection: {\sc implicature rejections}, {\sc epistemic rejections} and {\sc deliberation rejections}. I show how these rejections are inferred as a result of default inferences, which, by other analyses, would have been blocked by the context. In order to account for these facts, I propose a model of the common ground that allows these default inferences to go through, and show how the model, originally proposed to account for the various forms of acceptance, can also model all types of rejection.
description: 37 pages, uses fullpage, lingmacros, named
Pristomerus rufiabdominalis UCHIDA 1928
Creators: name: Kolarov, J.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Pristomerus
Pristomerus rufiabdominalis

description: Pristomerus rufiabdominalis UCHIDA 1928
 Pristomerus rufiabdominalis UCHIDA 1928. J. Fac. Agr. Hokkaido Imp. Univ. Sapporo 21: 284. Pristomerus rufiabdominalis: KOLAROV 1997: 172, Macedonia, ex Gypsonoma aceriana DUP.
D i s t r i b u t i o n: Poland, Hungary, Macedonia, Bulgaria, Moldova, Ukraine, South European Russia, Siberia, South Pacific coast of Russia and Japan.
description: Published as part of Kolarov, J., 2008, A Catalogue of the [former] Yugoslavian Ichneumonidae (Hymenoptera, Insecta), pp. 1585-1739 in Linzer biologische Beiträge 40 (2) on page 1612, DOI: 10.5281/zenodo.5431642
Evolution of Neural Networks to Play the Game of Dots-and-Boxes
Creators: name: Weaver, Lex
name: Bossomaier, Terry
Publisher: name: arXiv
Year: 1998
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.2.6

description: Dots-and-Boxes is a child's game which remains analytically unsolved. We implement and evolve artificial neural networks to play this game, evaluating them against simple heuristic players. Our networks do not evaluate or predict the final outcome of the game, but rather recommend moves at each stage. Superior generalisation of play by co-evolved populations is found, and a comparison made with networks trained by back-propagation using simple heuristics as an oracle.
description: 8 pages, 5 figures, LaTeX 2.09 (works with LaTeX2e)