cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Stillsitzen kann ich einfach nicht. Cicero zum Vergnügen. Hrsg. u. übers. v. Marion Giebel
Creators: name: Lindgens, Godehard
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Stillsitzen kann ich einfach nicht. Cicero zum Vergnügen. Hrsg. u. übers. v. Marion Giebel. Stuttgart: Reclam 1997. 183 S. 7,00 DM. (Reclams Universalbibliothek. 9652; ISBN 3-15- 009652-9).
description: Forum Classicum, Nr. 1 (1998): Forum Classicum
InMyFace: Inertial and Mechanomyography-Based Sensor Fusion for Wearable Facial Activity Recognition
Creators: name: Bello, Hymalai
name: Marin, Luis Alfredo Sanchez
name: Suh, Sungho
name: Zhou, Bo
name: Lukowicz, Paul
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Recognizing facial activity is a well-understood (but non-trivial) computer vision problem. However, reliable solutions require a camera with a good view of the face, which is often unavailable in wearable settings. Furthermore, in wearable applications, where systems accompany users throughout their daily activities, a permanently running camera can be problematic for privacy (and legal) reasons. This work presents an alternative solution based on the fusion of wearable inertial sensors, planar pressure sensors, and acoustic mechanomyography (muscle sounds). The sensors were placed unobtrusively in a sports cap to monitor facial muscle activities related to facial expressions. We present our integrated wearable sensor system, describe data fusion and analysis methods, and evaluate the system in an experiment with thirteen subjects from different cultural backgrounds (eight countries) and both sexes (six women and seven men). In a one-model-per-user scheme and using a late fusion approach, the system yielded an average F1 score of 85.00% for the case where all sensing modalities are combined. With a cross-user validation and a one-model-for-all-user scheme, an F1 score of 79.00% was obtained for thirteen participants (six females and seven males). Moreover, in a hybrid fusion (cross-user) approach and six classes, an average F1 score of 82.00% was obtained for eight users. The results are competitive with state-of-the-art non-camera-based solutions for a cross-user study. In addition, our unique set of participants demonstrates the inclusiveness and generalizability of the approach.
description: Submitted to Information Fusion, Elsevier
Slow-rotating charged black hole solution in dynamical Chern-Simons modified gravity
Creators: name: Nashed, G. G. L.
name: Nojiri, Shin'ichi
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Chern-Simons (CS) gravity is a modified theory of Einstein's general relativity (GR). The CS theory arises from the low energy limit of string theory which involves anomaly correction to the Einstein-Hilbert action. The CS term is given by the product of the Pontryagin density with a scalar field. In this study, we derive a charged slowly rotating black hole (BH) solution. The main incentives of this BH solution are axisymmetric and stationary and form distortion of the Kerr-Newman BH solution with a dipole scalar field. Additionally, we investigate the asymptotic correction of the metric with the inverse seventh power of the radial distance to the BH solution, This indicates that it will escape any meaningful constraints from weak-field experiments. To find this kind of BHs by observations, we investigate the propagation of the photon near the BH and we show that the difference between the left-rotated polarization and the right-handed one could be observed as stronger than the case of the Kerr-Newman BH. Finally, we derived the stability condition using the geodesic deviations.
description: 20 pages 3 figures, will appear in Phys. Rev. D
title: Γεωχημικός χαρακτηρισμός μητρικών σχηματισμών πετρελαίου σε νεογενείς σχηματισμούς της Κύπρου
Creators: name: Νανιδου Κωνσταντινα
Publisher: name: Technical University of Crete
Year: 2017

description: Η παρούσα Διπλωματική Εργασία έχει ως στόχο την μελέτη του δυναμικού πετρελαιογένεσης της Νοτιοδυτικής Κύπρου. Συγκεκριμένα, ερευνάται το δυναμικό των νεογενών σχηματισμών στην περιοχή «Πισσούρι» στην Κύπρο. Η λεκάνη του Πισσουρίου αποτελείται από τον σχηματισμό Πάχνας και ανήκει στην Ζώνη Αυτόχθονων Ιζηματογενών Πετρωμάτων.

Για την εκπόνηση της Διπλωματικής Εργασίας, χρησιμοποιήθηκαν 193 δείγματα από διαφορετικές περιοχές της Κύπρου και μέσω της ανάλυσης Rock-Eval έγινε ο αρχικός χαρακτηρισμός του οργανικού περιεχομένου των δειγμάτων. Στην συνέχεια, η μελέτη επικεντρώθηκε στην περιοχή του Πισσουρίου, από την οποία επιλέχθηκαν εννέα δείγματα πετρωμάτων τα οποία και αναλύθηκαν με τις πρότυπες μεθοδολογίες της γεωχημείας πετρελαίου.

Πιο συγκεκριμένα, το οργανικό υλικό εκχυλίστηκε από τα δείγματα των πετρωμάτων και αναλύθηκε με υγρή χρωματογραφία στήλης. Το κορεσμένο κλάσμα που συλλέχθηκε, αναλύθηκε με αέρια χρωματογραφία-φασματοσκοπία μάζας. Από τα πειραματικά δεδομένα υπολογίστηκαν συγκεκριμένοι γεωχημικοί δείκτες για τον προσδιορισμό της ποιότητας και της ποσότητας της οργανικής ύλης, καθώς και των συνθηκών εναπόθεσης της.
Διαπιστώθηκε, ότι οι σχηματισμοί των δείγματων έχουν φτωχό δυναμικό πετρελαιογένεσης και η οργανική τους ύλη χαρακτηρίζεται ως ανώριμη. Επιπλέον, η προέλευση τους εκτιμάται συνδυασμός χερσαίας και θαλάσσιας συνεισφοράς και το περιβάλλον εναπόθεσης τους ανοξικό.

Τέλος, επειδή από την ανάλυση Rock-Eval των δειγμάτων του Πισσουρίου, προσδιορίστηκαν υψηλοί δείκτες οξυγόνου (ΟΙ), κρίθηκε αναγκαίο να χρησιμοποιηθούν δύο επιπλέον συμπληρωματικές αναλυτικές μέθοδοι ώστε να χαρακτηριστεί το ανόργανο κλάσμα των δειγμάτων. Έτσι, με την μέθοδο της Περιθλασιμετρίας Ακτινών – Χ (XRD) έγινε η ποιοτική και ποσοτική ανάλυση των ορυκτολογικών φάσεων των δειγμάτων και με την μέθοδο της Φασματοσκοπίας Ακτινών – Χ Φθορισμού (XRF) έγινε η ποιοτική και ποσοτική ανάλυση των χημικών στοιχείων που περιέχονται στα δείγματα. Από τις δύο αυτές αναλύσεις διαπιστώθηκε η παρουσία ανθρακικών ορυκτών, γεγονός το οποίο δικαιολογεί τις αυξημένες τιμές του δείκτη οξυγόνου.
Insulin signaling in the central nervous system, a possible pathophysiological mechanism of anesthesia-induced delayed neurocognitive recovery/postoperative neurocognitive disorder: a narrative review
Creators: name: Qeva, Ega
name: Sollazzo, Camilla
name: Bilotta, Federico
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: 60506 Virology
subject: Computational Biology

description: Impairment in neurocognitive functions ranges between delayed neurocognitive recovery (DNR) and postoperative neurocognitive disorders (pNCD). Incidence varies from 11% after noncardiac surgery to 60% after cardiac surgery. Insulin receptors (IRs) signaling pathway in the central nervous system (CNS) could be a possible pathophysiological mechanism of anesthesia-induced DNR/pNCD and perioperative intranasal insulin administration could be a preventive approach. This hypothesis is supported by the following evidence: effects of IRs-CNS signaling pathway on neuromodulation; higher incidence of DNR/pNCD in patients with insulin resistance; neurotoxicity of IRs signaling pathways after anesthetic exposure; improvement of neurocognitive impairment after insulin exposure. This narrative review was conducted after a literature search of PubMed, EMBASE and SCOPUS online medical data performed in May 2022. Perioperative intranasal insulin is shown to be protective and future studies should address: the role of insulin as a neuromodulator; its integration into neuroprotection approaches; patient populations that might benefit from this approach; a well-defined protocol of intranasal insulin administration in a perioperative background and other disciplines; and possible collateral effects.
M. Valerius Martialis. Epigramme. Ausgew., eingel. u. komm. v. Uwe Walter
Creators: name: Wölke, Hansjörg
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: M. Valerius Martialis. Epigramme. Ausgew., eingel. u. komm. v. Uwe Walter. Paderborn (usw.): Schöningh 1996 (UTB. 1954). 306 S. 32,80 DM (ISBN 3-506-99491-3).
description: Forum Classicum, Nr. 1 (1998): Forum Classicum
Video Gallery: Unassigned US Screenwriters
Creators: name: Saccone, Kate
Publisher: name: Columbia University
Year: 2020
Subjects: Women in the motion picture industry
Motion pictures
Silent films
Women screenwriters

description: This post is intended to jumpstart research on a handful of US-based screenwriters by providing avenues for exploration and the opportunity to engage directly with archival moving image materials. Bringing together films held at the EYE Filmmuseum (many in the incomparable Desmet Collection) and valuable digital resources like the AFI Catalogue and Media History Digital Library, WFPP hopes to make research on some of our unassigned pioneers more accessible for both scholars and students. This compilation of tools, archival materials, and information is by no means exhaustive, and individuals interested in researching these screenwriters should use additional resources to confirm behind-the-scenes participation. Our intention is to spark engagement with these materials and encourage a wide range of uses and users for this video gallery, from instructors creating course assignments to individual film scholars looking to contribute to WFPP, or anyone who wants to research women’s participation in early cinema but is unsure where to start.
A Lorentz-violating low-energy model for the bilayer Graphene
Creators: name: Gomes, Y. M. P.
name: Neves, M. J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work, we propose a model with Lorentz symmetry violation which describes the electronic low energy limit of the AA-bilayer graphene (BLG) system. The AA-type bilayer is known to preserve the linear dispersion relation of the graphene layer in the low energy limit. The theoretical model shows that in the BLG system, a time-like vector can be associated with the layer separation and contributes to the energy eigenstates. Based on these properties, we can describe in a $(2+1)$-dimensional space-time the fermionic quasi-particles that emerge in the low-energy limit with the introduction of a Lorentz-violating parameter, in analogy with the $(3 + 1)$-dimensional Standard Model Extension (SME). Moreover, we study the consequences of the coupling of these fermionic quasi-particles with the electromagnetic field, and we show via effective action that the low-energy photon acquires a massive spectrum. Finally, using the hydrodynamic approach in the collisionless limit, one finds that the LSV generates a new kind of anomalous thermal current to the vortexes of the system via coupling of the LSV vector.
description: 13 pages, 4 figures, published version in EPJ Plus
Zwicky Transient Facility and Globular Clusters: The Period-Luminosity and Period-Wesenheit Relations for SX Phoenicis Variables in the gri-Band
Creators: name: Ngeow, Chow-Choong
name: Bhardwaj, Anupam
name: Graham, Matthew J.
name: Healy, Brian F.
name: Laher, Russ R.
name: Riddle, Reed
name: Wold, Avery
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: SX Phoenicis (SXP) variables are short period pulsating stars that exhibit a period-luminosity (PL) relation. We derived the gri-band PL and extinction-free period-Wesenheit (PW) relations, as well as the period-color (PC) and reddening-free period-Q-index (PQ) relations for 47 SXP stars in located in 21 globular clusters using the optical light curves taken from Zwicky Transient Facility (ZTF). These empirically relations were derived for the first time in the gri filters except for the g-band PL relation. We used our gi band PL and PW relations to derive a distance modulus to Crater II dwarf spheroidal which hosts one SXP variable. Assuming that the fundamental and first-overtone pulsation mode for the SXP variable in Crater II, we found distance moduli of $20.03 \pm 0.23$ mag and $20.37 \pm 0.24$ mag, respectively, using the PW relation, where the latter is in excellent agreement with independent RR Lyrae based distance to Crater II dwarf galaxy.
description: 12 pages, 1 Table and 10 Figures; AJ accepted
Dynamical evolution of basaltic asteroids outside the Vesta family in the inner main belt
Creators: name: Troianskyi, Volodymyr
name: Kankiewicz, Pawel
name: Oszkiewicz, Dagmara
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Basaltic V-type asteroids are leftovers from the formation and evolution of differentiated planetesimals. They are thought to originate from mantles and crusts of multiple different parent bodies. Identifying the links between individual V-type asteroids and multiple planetesimals is challenging, especially in the inner part of the main asteroid belt, where the majority of V-type asteroids are expected to have originated from a single planetesimal, namely, (4) Vesta. In this work, we aim to trace the origin of a number of individual V-type asteroids from the inner part of the main asteroid belt. The main goal is to identify asteroids that may not be traced back to (4) Vesta and may therefore originate from other differentiated planetesimals. We performed a 2 Gy backward numerical integration of the orbits of the selected V-type asteroids. For each asteroid, we used 1001 clones to map the effect of orbital uncertainties. In the integration, we use information on physical properties of the considered V-type asteroids such as pole orientation, rotational period, and thermal parameters. The majority of V-types in the inner main belt outside the Vesta family are clearly Vesta fugitives. Two objects, namely, (3307) Athabasca and (17028) 1999 FJ$_{5}$, show no clear dynamical link to (4) Vesta. Together with (809) Lundia (from our previous work), these objects could represent the parent bodies of anomalous HED meteorites such as the Banbura Rockhole. Furthermore, some objects of the low-inclination population cannot be traced back to (4) Vesta within the 2 Gy integration.
Equalizing the Pixel Response of the Imaging Photoelectric Polarimeter On-Board the IXPE Mission
Creators: name: Rankin, John
name: Muleri, Fabio
name: Di Marco, Alessandro
name: Fabiani, Sergio
name: La Monaca, Fabio
name: Soffitta, Paolo
name: Bachetti, Matteo
name: Baldini, Luca
name: Costa, Enrico
name: Di Lalla, Niccolò
name: Manfreda, Alberto
name: O'Dell, Stephen L.
name: Perri, Matteo
name: Puccetti, Simonetta
name: Ramsey, Brian D.
name: Sgrò, Carmelo
name: Tennant, Allyn F.
name: Tobia, Antonino
name: Trois, Alessio
name: Weisskopf, Martin C.
name: Xie, Fei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The Gas Pixel Detector is a gas detector, sensitive to the polarization of X-rays, currently flying on-board IXPE - the first observatory dedicated to X-ray polarimetry. It detects X-rays and their polarization by imaging the ionization tracks generated by photoelectrons absorbed in the sensitive volume, and then reconstructing the initial direction of the photoelectrons. The primary ionization charge is multiplied and ultimately collected on a finely-pixellated ASIC specifically developed for X-ray polarimetry. The signal of individual pixels is processed independently and gain variations can be substantial, of the order of 20%. Such variations need to be equalized to correctly reconstruct the track shape, and therefore its polarization direction. The method to do such equalization is presented here and is based on the comparison between the mean charge of a pixel with respect to the other pixels for equivalent events. The method is shown to finely equalize the response of the detectors on board IXPE, allowing a better track reconstruction and energy resolution, and can in principle be applied to any imaging detector based on tracks.
description: Accepted for publication in The Astronomical Journal. 10 pages, 19 figures
Entanglement entropy from the holographic stress tensor
Creators: name: Bhattacharyya, Arpan
name: Sinha, Aninda
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider entanglement entropy in the context of gauge/gravity duality for conformal field theories in even dimensions. The holographic prescription due to Ryu and Takayanagi (RT) leads to an equation describing how the entangling surface extends into the bulk geometry. We show that setting to zero the time-time component of the Brown-York stress tensor evaluated on the co-dimension one entangling surface, leads to the same equation. By considering a spherical entangling surface as an example, we observe that Euclidean action methods in AdS/CFT will lead to the RT area functional arising as a counterterm needed to regularize the stress tensor. We present arguments leading to a justification for the minimal area prescription.
description: 10 pages. v3: many changes. Observation that the RT area functional arises as a counterterm to regularize the stress tensor added. Discussion on Euclidean methods for computing EE added. v4: version to appear in CQG
Unpacking Program Enrollments and Completions With Equity in Mind
Creators: name: Fink, John
name: Jenkins, Davis
Publisher: name: Columbia University
Year: 2020
Subjects: Community college students
Minority college students
Educational equalization
Community colleges
Discrimination in higher education--Evaluation

description: This guide presents examples and instructions for data analyses colleges can conduct to better understand student enrollments and completions in particular programs. Such analyses can help colleges scrutinize representation of historically marginalized groups in programs leading to greater opportunity after graduation. There is an equity imperative in this effort. Without disaggregating program enrollments with an eye to what those programs lead to—and interrogating and redesigning practices and policies perpetuating inequities—student success reform approaches such as guided pathways will likely continue to reinforce existing racial/ethnic, gender, and socioeconomic stratification. Examining representation across college programs with equity in mind is an important complement to the work colleges are doing to increase completion rates overall and close equity gaps. The authors recommend that colleges undertake a series of data exercises and reflective discussions based on the following three questions: 1. What programs are our students currently enrolled in? 2. What opportunity does each program lead to in terms of further education (e.g., transfer to bachelor’s programs or bridges into more advanced workforce credentials) and/or immediate job prospects and earnings. Which programs lead to greater or lesser opportunity? 3. Is student representation across programs proportionate? Which subgroups of students (by race/ethnicity, gender, socioeconomic status, and age) are underrepresented in higher-opportunity programs? To answer these questions, the authors show how to carry out a set of relatively simple data analyses that colleges can replicate using their own data. Similar analyses can be used to examine program completions.
title: Μελέτη σύνθεσης νανοκόνεων Al2O3 και TiO2 με τη χημική μέθοδο της διάλυσης-ζελατινοποίησης
Creators: name: Τσιουτσιουλικλή Ευδοκία
Publisher: name: Technical University of Crete
Year: 2004

description: Μη διαθέσιμο
A note on a sumset in $\mathbb{Z}_{2k}$
Creators: name: Agustín-Aquino, Octavio A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 11B13, 11L07

description: Let $A$ and $B$ be additive sets of $\mathbb{Z}_{2k}$, where $A$ has cardinality $k$ and $B=v.\complement A$ with $v\in\mathbb{Z}_{2k}^{\times}$. In this note some bounds for the cardinality of $A+B$ are obtained, using four different approaches. We also prove that in a special case the bound is not sharp and we can recover the whole group as a sumset.
5D Elko spinor field non-minimally coupled to nonmetricity in $f(Q)$ gravity
Creators: name: Belchior, F. M.
name: Moreira, A. R. P.
name: Maluf, R. V.
name: Almeida, C. A. S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper aims to investigate the localization of the five-dimensional spinor field known as Elko (dual-helicity eigenspinors of the charge conjugation operator) by employing a Yukawa-like geometrical coupling in which the Elko field is non-minimally coupled to nonmetricity scalar $Q$. We adopt the braneworld scenarios in which the first-order formalism with sine-Gordon and linear superpotentials is employed to obtain the warp factors. A linear function supports the zero-mode trapping within the geometric coupling, leading to the same effective potential as the scalar field. Moreover, an exotic term must be added to obtain real-valued massive modes. Such modes are investigated through the Schrödinger-like approach.
description: 18 pages, 5 figures, matches published version in PLB
Parametric study of the kinematic evolution of coronal mass ejection shock waves and their relation to flaring activity
Creators: name: Jarry, Manon
name: Rouillard, Alexis P.
name: Plotnikov, Illya
name: Kouloumvakos, Athanasios
name: Warmuth, Alexander
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Coronal and interplanetary shock waves produced by coronal mass ejections (CMEs) are major drivers of space-weather phenomena, inducing major changes in the heliospheric radiation environment and directly perturbing the near-Earth environment, including its magnetosphere. A better understanding of how these shock waves evolve from the corona to the interplanetary medium can therefore contribute to improving nowcasting and forecasting of space weather. Early warnings from these shock waves can come from radio measurements as well as coronagraphic observations that can be exploited to characterise the dynamical evolution of these structures. Our aim is to analyse the geometrical and kinematic properties of 32 CME shock waves derived from multi-point white-light and ultraviolet imagery taken by the Solar Dynamics Observatory (SDO), Solar and Heliospheric Observatory (SoHO), and Solar-Terrestrial Relations Observatory (STEREO) to improve our understanding of how shock waves evolve in 3D during the eruption of a CME. We use our catalogue to search for relations between the shock wave's kinematic properties and the flaring activity associated with the underlying genesis of the CME piston. Past studies have shown that shock waves observed from multiple vantage points can be aptly reproduced geometrically by simple ellipsoids. The catalogue of reconstructed shock waves provides the time-dependent evolution of these ellipsoidal parameters. From these parameters, we deduced the lateral and radial expansion speeds of the shocks evolving over time. We compared these kinematic properties with those obtained from a single viewpoint by SoHO in order to evaluate projection effects. Finally, we examined the relationships between the shock wave and the associated flare when the latter was observed on the disc by considering the measurements of soft and hard X-rays.
description: 11 pages, 12 figures, accepted for publication in A&A
Geometry-independent tight-binding method for massless Dirac fermions in two dimensions
Creators: name: Ziesen, Alexander
name: Fulga, Ion Cosma
name: Hassler, Fabian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The Nielsen-Ninomiya theorem, dubbed `fermion-doubling', poses a problem for the naive discretization of a single (massless) Dirac cone on a two-dimensional surface. The inevitable appearance of an additional, unphysical fermionic mode can, for example, be circumvented by introducing an extra dimension to spatially separate Dirac cones. In this work, we propose a geometry-independent protocol based on a tight-binding model for a three-dimensional topological insulator on a cubic lattice. The low-energy theory, below the bulk gap, corresponds to a Dirac cone on its two-dimensional surface which can have an arbitrary geometry. We introduce a method where only a thin shell of the topological insulator needs to be simulated. Depending on the setup, we propose to gap out the states on the undesired surfaces either by breaking the time-reversal symmetry or by introducing a superconducting pairing. We show that it is enough to have a thickness of the topological-insulator shell of three to nine lattice constants. This leads to an effectively two-dimensional scaling with minimal and fixed shell thickness. We test the idea by comparing the spectrum and probability distribution to analytical results for both a proximitized Dirac mode and a Dirac mode on a sphere which exhibits a nontrivial spin-connection. The protocol yields a tight-binding model on a cubic lattice simulating Dirac cones on arbitrary surfaces with only a small overhead due to the finite thickness of the shell.
description: 10 pages, 7 figures
Die Wurzeln unserer Kultur Latein und Griechisch für die Jugend Europas. Bericht vom Kongress des Deutschen Altphilologenverbandes in Verbindung mit EUROCLASSICA 14. bis 18. April 1998 in Heidelberg
Creators: name: Selmaier, Alfred
Publisher: name: Forum Classicum
Year: 2017

description: -
description: Forum Classicum, Nr. 2 (1998): Forum Classicum
Validation of artificial intelligence containing products across the regulated healthcare industries
Creators: name: Higgins, David
name: Johner, Christian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computers and Society (cs.CY)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences
subject: I.2.1; J.3

description: Purpose: The introduction of artificial intelligence / machine learning (AI/ML) products to the regulated fields of pharmaceutical research and development (R&D) and drug manufacture, and medical devices (MD) and in-vitro diagnostics (IVD), poses new regulatory problems: a lack of a common terminology and understanding leads to confusion, delays and product failures. Validation as a key step in product development, common to each of these sectors including computerized systems and AI/ML development, offers an opportune point of comparison for aligning people and processes for cross-sectoral product development. Methods: A comparative approach, built upon workshops and a subsequent written sequence of exchanges, summarized in a look-up table suitable for mixed-teams work. Results: 1. A bottom-up, definitions led, approach which leads to a distinction between broad vs narrow validation, and their relationship to regulatory regimes. 2. Common basis introduction to the primary methodologies for AI-containing software validation. 3. Pharmaceutical drug development and MD/IVD specific perspectives on compliant AI software development, as a basis for collaboration. Conclusions: Alignment of the terms and methodologies used in validation of software products containing artificial intelligence / machine learning (AI/ML) components across the regulated industries of human health is a vital first step in streamlining processes and improving workflows.
description: 33 pages, 3 figures, 1 table. A version of this preprint with messy formatting is available from https://www.researchsquare.com/article/rs-2153749/v1
Mining Feature Relationships in Data
Creators: name: Lensen, Andrew
Publisher: name: Open Access Victoria University of Wellington | Te Herenga Waka
Year: 2021
Subjects: Uncategorized

description: When faced with a new dataset, most practitioners begin by performing exploratory data analysis to discover interesting patterns and characteristics within data. Techniques such as association rule mining are commonly applied to uncover relationships between features (attributes) of the data. However, association rules are primarily designed for use on binary or categorical data, due to their use of rule-based machine learning. A large proportion of real-world data is continuous in nature, and discretisation of such data leads to inaccurate and less informative association rules. In this paper, we propose an alternative approach called feature relationship mining (FRM), which uses a genetic programming approach to automatically discover symbolic relationships between continuous or categorical features in data. To the best of our knowledge, our proposed approach is the first such symbolic approach with the goal of explicitly discovering relationships between features. Empirical testing on a variety of real-world datasets shows the proposed method is able to find high-quality, simple feature relationships which can be easily interpreted and which provide clear and non-trivial insight into data.
title: Παραμετρική ανάλυση διαδικασίας μεταφοράς τάσεων στο υπέδαφος λόγω επιφανειακών θεμελιώσεων
Creators: name: Ζώνιος Στέφανος
Publisher: name: Technical University of Crete
Year: 2004

description: Μη διαθέσιμο
Solitary waves in a quantum droplet-bearing system
Creators: name: Katsimiga, G. C.
name: Mistakidis, S. I.
name: Koutsokostas, G. N.
name: Frantzeskakis, D. J.
name: Carretero-Gonzalez, R.
name: Kevrekidis, P. G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We unravel the existence and stability properties of dark soliton solutions as they extend from the regime of trapped quantum droplets towards the Thomas-Fermi limit in homonuclear symmetric Bose mixtures. Leveraging a phase-plane analysis, we identify the regimes of existence of different types of quantum droplets and subsequently examine the possibility of black and gray solitons and kink-type structures in this system. Moreover, we employ the Landau dynamics approach to extract an analytical estimate of the oscillation frequency of a single dark soliton in the relevant extended Gross-Pitaevskii model. Within this framework, we also find that the single soliton immersed in a droplet is stable, while multisoliton configurations exhibit parametric windows of oscillatory instabilities. Our results pave the way for studying dynamical features of nonlinear multisoliton excitations in a droplet environment in contemporary experimental settings.
description: 16 pages, 9 figures, fixed some typos
NL2CMD: An Updated Workflow for Natural Language to Bash Commands Translation
Creators: name: Fu, Quchen
name: Teng, Zhongwei
name: Georgaklis, Marco
name: White, Jules
name: Schmidt, Douglas C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: Translating natural language into Bash Commands is an emerging research field that has gained attention in recent years. Most efforts have focused on producing more accurate translation models. To the best of our knowledge, only two datasets are available, with one based on the other. Both datasets involve scraping through known data sources (through platforms like stack overflow, crowdsourcing, etc.) and hiring experts to validate and correct either the English text or Bash Commands. This paper provides two contributions to research on synthesizing Bash Commands from scratch. First, we describe a state-of-the-art translation model used to generate Bash Commands from the corresponding English text. Second, we introduce a new NL2CMD dataset that is automatically generated, involves minimal human intervention, and is over six times larger than prior datasets. Since the generation pipeline does not rely on existing Bash Commands, the distribution and types of commands can be custom adjusted. We evaluate the performance of ChatGPT on this task and discuss the potential of using it as a data generator. Our empirical results show how the scale and diversity of our dataset can offer unique opportunities for semantic parsing researchers.
Tracking the Enigmatic Globular Cluster Ultracompact X-ray Binary X1850--087: Extreme Radio Variability in the Hard State
Creators: name: Panurach, T.
name: Urquhart, R.
name: Strader, J.
name: Chomiuk, L.
name: Bahramian, A.
name: Heinke, C. O.
name: Maccarone, T. J.
name: Miller-Jones, J. C. A.
name: Sivakoff, G. R.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The conditions under which accreting neutron stars launch radio-emitting jets and/or outflows are still poorly understood. The ultracompact X-ray binary X1850--087, located in the globular cluster NGC 6712, is a persistent atoll-type X-ray source that has previously shown unusual radio continuum variability. Here we present the results of a pilot radio monitoring program of X1850--087 undertaken with the Karl G. Jansky Very Large Array, with simultaneous or quasi-simultaneous Swift/XRT data obtained at each epoch. The binary is clearly detected in the radio in two of the six new epochs. When combined with previous data, these results suggest that X1850--087 shows radio emission at a slightly elevated hard state X-ray luminosity of L_X > 2x10^36 erg/s, but no radio emission in its baseline hard state L_X ~10^36 erg/s. No clear X-ray spectral changes are associated with this factor of > 10 radio variability. At all detected epochs X1850--087 has a flat-to-inverted radio spectral index, more consistent with the partially absorbed optically thick synchrotron of a compact jet rather than the evolving optically thick to thin emission associated with transient expanding synchrotron-emitting ejecta. If the radio emission in X1850--087 is indeed due to a compact jet, then it is plausibly being launched and quenched in the hard state on timescales as short as a few days. Future radio monitoring of X1850--087 could help elucidate the conditions under which compact jets are produced around hard state accreting neutron stars.
description: 9 pages, 2 figures, 2 tables, accepted for publication in ApJ
Aristoteles. Ausgew. u. vorgest. v. Annemarie Pieper
Creators: name: Scheffel, Wolfgang
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Aristoteles. Ausgew. u. vorgest. v. Annemarie Pieper. München: Deutscher Taschenbuch Verlag 1997. 494 S, 29,90 DM. (dtv 30682, Philosophie jetzt! Hrsg. von Peter Sloterdijk; ISBN 3-423-30682-3).
description: Forum Classicum, Nr. 3 (1998): Forum Classicum
Quantum Entropy and Central Limit Theorem
Creators: name: Bu, Kaifeng
name: Gu, Weichen
name: Jaffe, Arthur
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We introduce a framework to study discrete-variable (DV) quantum systems based on qudits. It relies on notions of a mean state (MS), a minimal stabilizer-projection state (MSPS), and a new convolution. Some interesting consequences are: The MS is the closest MSPS to a given state with respect to the relative entropy; the MS is extremal with respect to the von Neumann entropy, demonstrating a ''maximal entropy principle in DV systems.'' We obtain a series of inequalities for quantum entropies and for Fisher information based on convolution, giving a ''second law of thermodynamics for quantum convolutions.'' We show that the convolution of two stabilizer states is a stabilizer state. We establish a central limit theorem, based on iterating the convolution of a zero-mean quantum state, and show this converges to its MS. The rate of convergence is characterized by the ''magic gap,'' which we define in terms of the support of the characteristic function of the state. We elaborate on two examples: the DV beam splitter and the DV amplifier.
description: 11 pages. See also the companion work arXiv:2302.08423
title: Μελέτη των μηχανικών παραμέτρων του εδάφους με τη χρήση σεισμικών μεθόδων και εργαστηριακών μετρήσεων
Creators: name: Παπακωνσταντίνου Κωνσταντίνος
Publisher: name: Technical University of Crete
Year: 2004

description: Μη διαθέσιμο
Exp function for Edwards curves over local fields
Creators: name: Filippone, Giuseppe
Publisher: name: arXiv
Year: 2023
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 11F85, 11G07, 11G20, 14H52

description: We extend the map Exp for elliptic curves in short Weierstrass form over $ \mathbb{C} $ to Edwards curves over local fields. Subsequently, we compute the map Exp for Edwards curves over the local field $ \mathbb{Q}_{p} $ of $ p $-adic numbers.
description: 11 pages, 26 references
title: Παρασκευή ζεόλιθων υψηλής προστιθέμενης αξίας από άμορφο διοξείδιο του πυριτίου κι από λεπτόκοκκα απορρίματα περλίτη
Creators: name: Παπαντώνη Χαραλαμπία
Publisher: name: Technical University of Crete
Year: 2004

description: Μη διαθέσιμο
Exclusive meets inclusive at small Bjorken-$x_B$: how to relate exclusive measurements to PDFs based on evolution equations
Creators: name: Dutrieux, Hervé
name: Winn, Michael
name: Bertone, Valerio
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Exclusive heavy-vector-meson photoproduction is a prominent signal in collider experiments with hadron beams. At the highest photon-hadron collision energies, this process is considered as a candidate to constrain gluon parton distribution functions (PDFs) at small longitudinal momentum fractions. However, in the framework of collinear factorisation, exclusive particle production is described in terms of generalised parton distributions (GPDs). In this contribution, we investigate at the leading order in $α_s$ the connection between GPDs and PDFs. Our main result is a proposal to quantify the systematic uncertainty inherent to this connection. We put our approach into context with respect to the Shuavev transform. Our uncertainty estimate can be straightforwardly adapted to higher fixed orders and small-$x$ resummations. The question of extrapolating GPDs to vanishing skewness is paramount for the programme of the Electron Ion Collider (EIC), notably for the extraction of the radial distributions of partons.
description: 17 pages, 7 figures
Barceló, Pedro: Hannibal
Creators: name: Wölke, Hansjörg
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Barceló, Pedro: Hannibal. München: Beck 1998. 119 S., 14,80 DM (Beck’sche Reihe. 2092. Beck Wissen; ISBN 3-406-43292-1).
description: Forum Classicum, Nr. 3 (1998): Forum Classicum
Trends in Key Performance Indicators Among Colleges Participating in a Technology-Mediated Advising Reform Initiative
Creators: name: Velasco Rodriguez, Tatiana
name: Hughes, Katherine Lee
name: Barnett, Elisabeth
Publisher: name: Columbia University
Year: 2020
Subjects: Community college students--Services for
Counseling in higher education
Educational change
Educational technology--Study and teaching
Education, Higher--Administration

description: In 2015, 26 two- and four-year institutions received three-year grants to implement reforms consistent with the Integrated Planning and Advising for Student Success (iPASS) initiative. Grantees committed to launching or enhancing existing technologies and undertake related organizational changes that would enable them to provide more effective advising and support to all students. CCRC was engaged as a research partner to document the iPASS colleges’ implementation efforts and outcomes. CCRC analyzed key performance indicators (KPIs)—including student retention from the first to the second semester and first-term grade point average—using administrative data collected from all 26 participating institutions. This report describes trends in KPIs, aggregated by college sector and cohort, in the participating colleges from 2011 to 2017—from the period before the initiative started until about two years after the grants were awarded. Because iPASS reforms cannot easily be isolated from other reforms the colleges were carrying out, it is difficult to directly associate the modest changes observed over time in KPIs. This report also includes college scores on an iPASS development index, a weighted measure CCRC researchers created to gain insights into the level of adoption of iPASS technologies and practices across the 26 grantee institutions as of fall 2017, when colleges provided answers to an institutional survey about their efforts. The authors find that while no institution had fully implemented iPASS, at most institutions, substantial progress was being made.
Formulation of Electrodynamics with an External Source in the Presence of a Minimal Measurable Length
Creators: name: Moayedi, S. K.
name: Setare, M. R.
name: Khosropour, B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a series of papers, Quesne and Tkachuk (J. Phys. A: Math. Gen. \textbf{39}, 10909 (2006); Czech. J. Phys. \textbf{56}, 1269 (2006)) presented a $D+1$-dimensional $(β,β')$-two-parameter Lorentz-covariant deformed algebra which leads to a nonzero minimal measurable length. In this paper, the Lagrangian formulation of electrodynamics in a 3+1-dimensional space-time described by Quesne-Tkachuk algebra is studied in the special case $β'=2β$ up to first order over the deformation parameter $β$. It is demonstrated that at the classical level there is a similarity between electrodynamics in the presence of a minimal measurable length (generalized electrodynamics) and Lee-Wick electrodynamics. We obtain the free space solutions of the inhomogeneous Maxwell's equations in the presence of a minimal length. These solutions describe two vector particles (a massless vector particle and a massive vector particle). We estimate two different upper bounds on the isotropic minimal length. The first upper bound is near to the electroweak length scale $(\ell_{electroweak}\sim 10^{-18}\, m)$, while the second one is near to the length scale for the strong interactions $(\ell_{strong}\sim 10^{-15}\, m)$. The relationship between the Gaete-Spallucci nonlocal electrodynamics (J. Phys. A: Math. Theor. \textbf{45}, 065401 (2012)) and electrodynamics with a minimal length is investigated.
description: 13 pages, no figure
Here Comes the Sun: Solar Parameters in Long-Baseline Accelerator Neutrino Oscillations
Creators: name: Denton, Peter B.
name: Gehrlein, Julia
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Long-baseline (LBL) accelerator neutrino oscillation experiments, such as NOvA and T2K in the current generation, and DUNE-LBL and HK-LBL in the coming years, will measure the remaining unknown oscillation parameters with excellent precision. These analyses assume external input on the so-called ``solar parameters,'' $θ_{12}$ and $Δm^2_{21}$, from solar experiments such as SNO, SK, and Borexino, as well as reactor experiments like KamLAND. Here we investigate their role in long-baseline experiments. We show that, without external input on $Δm^2_{21}$ and $θ_{12}$, the sensitivity to detecting and quantifying CP violation is significantly, but not entirely, reduced. Thus long-baseline accelerator experiments can actually determine $Δm^2_{21}$ and $θ_{12}$, and thus all six oscillation parameters, without input from \emph{any} other oscillation experiment. In particular, $Δm^2_{21}$ can be determined; thus DUNE-LBL and HK-LBL can measure both the solar and atmospheric mass splittings in their long-baseline analyses alone. While their sensitivities are not competitive with existing constraints, they are very orthogonal probes of solar parameters and provide a key consistency check of a less probed sector of the three-flavor oscillation picture. Furthermore, we also show that the true values of $Δm^2_{21}$ and $θ_{12}$ play an important role in the sensitivity of other oscillation parameters such as the CP violating phase $δ$.
description: 29 pages, 13 figures, comments welcome! v2: matches published version
Gaining Ground: Findings From the Dana Center Mathematics Pathways Impact Study
Creators: name: Rutschow, Elizabeth Zachry
name: Sepanik, Susan
name: Deitch, Victoria
name: Raufman, Julia
name: Dukes, Dominique Chevelle
name: Moussa, Adnan
Publisher: name: Columbia University
Year: 2019
Subjects: Mathematics--Study and teaching (Higher)
Developmental studies programs
Community colleges--Curricula
Educational change--Evaluation
Community colleges

description: Many college students are required to take at least one developmental math course, but as many as half of them fail to complete their developmental math requirements and never matriculate into college-level courses. To address this issue, the Charles A. Dana Center at the University of Texas at Austin created the Dana Center Mathematics Pathways (DCMP) to help colleges implement math pathways aligned with students’ programs of study in both developmental and college-level courses, accelerate students’ progress to and through college-level math, develop strategies to support students as learners, and integrate evidence-based practices in instruction. The Dana Center also created curricula the colleges used for three course pathways (focused on statistical reasoning, quantitative reasoning, and algebra/calculus). This CAPR study looks at how four Texas community colleges implemented DCMP and how instruction in DCMP courses compares with traditional developmental and college-level math courses. Through a randomized controlled trial involving 1,422 students who entered the study from fall 2015 through spring 2017, the researchers examined the impact of DCMP on student outcomes for up to four semesters. The study also considers student perspectives on the reforms and the start-up and ongoing costs of DCMP to the colleges. Researchers found that the colleges were successful in revising pre-existing policies, curricula, and pedagogy in order to launch and then scale DCMP courses to reach more students. They also found that instruction in DCMP courses looked very different from that in colleges’ standard developmental course offerings and college-level algebra courses. Finally, researchers found that DCMP students enrolled in and passed college-level math at higher rates than non-DCMP students, indicating that DCMP played a part in helping them overcome some of the pitfalls of developmental education and reach a crucial milestone. Key Findings: DCMP had a positive impact on students’ completion of the developmental math sequence and their likelihood of taking and passing college-level math. The impacts of DCMP appear to be greater for part-time students and students assessed as needing multiple developmental courses. Start-up and net ongoing direct costs to the colleges to implement and maintain DCMP were fairly low.