cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Time-dependent Performance Analysis of the 802.11p-based Platooning Communications Under Disturbance
Creators: name: Wu, Qiong
name: Ge, Hongmei
name: Fan, Pingyi
name: Wang, Jiangzhou
name: Fan, Qiang
name: Li, Zhengquan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Platooning is a critical technology to realize autonomous driving. Each vehicle in platoons adopts the IEEE 802.11p standard to exchange information through communications to maintain the string stability of platoons. However, one vehicle in platoons inevitably suffers from a disturbance resulting from the leader vehicle acceleration/deceleration, wind gust and uncertainties in a platoon control system, i.e., aerodynamics drag and rolling resistance moment etc. Disturbances acting on one vehicle may inevitably affect the following vehicles and cause that the spacing error is propagated or even amplified downstream along the platoon, i.e., platoon string instability. In this case, the connectivity among vehicles is dynamic, resulting in the performance of 802.11p in terms of packet delay and packet delivery ratio being time-varying. The effect of the string instability would be further deteriorated once the time-varying performance of 802.11p cannot satisfy the basic communication requirement. Unlike the existing works which only analyze the steady performance of 802.11p in vehicular networks, we will focus on the impact of disturbance and construct models to analyze the time-dependent performance of 802.11p-based platooning communications. The effectiveness of the models is validated through simulation results. Moreover, the time-dependent performance of 802.11p is analyzed through numerical results and it is validated that 802.11p is able to satisfy the communication requirement under disturbance.
description: This paper has been accepted by IEEE Transactions on Vehicular Technology. Simulation codes have been provided at: https://github.com/qiongwu86/TVT_code
Additional file 1 of Pilot study on the effects of preservatives on corneal collagen parameters measured by small angle X-ray scattering analysis
Creators: name: Susyn Joan Kelly
name: DuPlessis, Lizette
name: Soley, John
name: Noble, Frazer
name: Wells, Hannah Carolyn
name: Kelly, Patrick John
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Additional file 1: Figure S1. Images for subjective assessment of the transparency of sheep and cats’ preserved corneas on a 2 mm grid.
Limits of the upper critical field in dirty two-gap superconductors
Creators: name: Gurevich, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: An overview of the theory of the upper critical field in dirty two-gap superconductors, with a particular emphasis on MgB$_2$ is given. We focus here on the maximum $H_{c2}$ which may be achieved by increasing intraband scattering, and on the limitations imposed by weak interband scattering and paramagnetic effects. In particular, we discuss recent experiments which have recently demonstrated ten-fold increase of $H_{c2}$ in dirty carbon-doped films as compared to single crystals, so that the $H_{c2}(0)$ parallel to the ab planes may approach the BCS paramagnetic limit, $H_p[T] = 1.84T_c[K] \simeq 60-70T$. New effects produced by weak interband scattering in the two-gap Ginzburg-Landau equations and $H_{c2}(T)$ in ultrathin MgB$_2$ films are addressed.
description: Submitted to the special issue of Physica C on MgB$_2$ on Dec. 3, 2006
Large-Scale Tests of the DGP Model
Creators: name: Song, Yong-Seon
name: Sawicki, Ignacy
name: Hu, Wayne
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The self-accelerating braneworld model (DGP) can be tested from measurements of the expansion history of the universe and the formation of structure. Current constraints on the expansion history from supernova luminosity distances, the CMB, and the Hubble constant exclude the simplest flat DGP model at about 3sigma. The best-fit open DGP model is, however, only a marginally poorer fit to the data than flat LCDM. Its substantially different expansion history raises structure formation challenges for the model. A dark-energy model with the same expansion history would predict a highly significant discrepancy with the baryon oscillation measurement due the high Hubble constant required and a large enhancement of CMB anisotropies at the lowest multipoles due to the ISW effect. For the DGP model to satisfy these constraints new gravitational phenomena would have to appear at the non-linear and cross-over scales respectively. A prediction of the DGP expansion history in a region where the phenomenology is well understood is that high-redshift galaxies should be substantially correlated with the CMB through the ISW effect. This correlation should provide a sharp test of the DGP model in the future.
description: 8 pages, 5 figures, added and updated references, version reflects that accepted by PRD, v3 fixes bibliography issues
Aspects of a supersymmetric Brans-Dicke theory
Creators: name: Catena, Riccardo
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider a locally supersymmetric theory where the Planck mass is replaced by a dynamical superfield. This model can be thought of as the Minimal Supersymmetric extension of the Brans-Dicke theory (MSBD). The motivation that underlies this analysis is the research of possible connections between Dark Energy models based on Brans-Dicke-like theories and supersymmetric Dark Matter scenarios. We find that the phenomenology associated with the MSBD model is very different compared to the one of the original Brans-Dicke theory: the gravitational sector does not couple to the matter sector in a universal metric way. This feature could make the minimal supersymmetric extension of the BD idea phenomenologically inconsistent.
description: 6 pages, one section is added
title: Hydrologie bevaarbare waterlopen Vlaanderen: jaar 2022
Creators: name: Bertels, Jonas
name: Michielsen, Stef
name: Boeckx, Leen
name: Vereecken, Hans
name: Deschamps, Maarten
Publisher: name: Flanders Hydraulics
Year: 2024

description: Title : WL Rapporten. Waterbouwkundig Laboratorium: Antwerpen.
Volume : PA026_6
Issue :
Pagination : VII, 25 + 32 p. bijl.
Μελέτη λογισμικού διαχείρισης στόλου. Δυνατότητες και προοπτικές
Creators: name: Κυριακίδου, Ελένη Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2010
Subjects: Λογισμικό
Διαχείριση
Στόλος
Sfotware
Management
Fleet

description: Την τελευταία δεκαετία τεράστιες αλλαγές έχουν πραγματοποιηθεί στον τομέα της εφοδιαστικής αλυσίδας. Σύμφωνα και με την παγκόσμια αναγνωρισμένη προσωπικότητα Christopher ο ανταγωνισμός των εταιριών μετατρέπεται σε ανταγωνισμό των εφοδιαστικών αλυσίδων. Από τη μία πλευρά, συνθήκες όπως η παγκοσμιοποίηση και διεθνοποίηση των αγορών, η αυξανόμενη ανάγκη των εταιριών να αποκτούν ανταγωνιστικά πλεονεκτήματα μέσα από το μειωμένο κόστος, τη βελτιωμένη ποιότητα, την ταχύτητα, την ευελιξία, την καινοτομία έχουν οδηγήσει στην ανάπτυξη νέων συστημάτων Logistics. Από την άλλη πλευρά, η δυνατότητα αξιοποίησης πολλαπλών καναλιών επικοινωνίας, η αυξανόμενη χρήση του διαδικτύου, οι νέες εφαρμογές που έχει δημιουργήσει η ψηφιακή τεχνολογία και τα επιτεύγματα της τηλεματικής αποτελούν διαδραστικά εργαλεία για την διαχείριση μεταφορών, οχημάτων και οδηγών. Στα πλαίσια της παρούσας εργασίας επιχειρείται μέσα από εκτεταμένη ανασκόπηση της ελληνικής και διεθνούς βιβλιογραφίας να αναλυθούν εκτενώς οι έννοιες των συστημάτων διαχείρισης στόλου και των ζητημάτων που σχετίζονται με αυτά. Επίσης, παρουσιάζονται οι δέκα κορυφαίες επιχειρήσεις που προσφέρουν λύσεις διαχείρισης στόλου στην ελληνική αγορά μέσα από την αναλυτική παράθεση των χαρακτηριστικών λειτουργίας τους. Τέλος, για την εξαγωγή προσωπικών συμπερασμάτων παρουσιάζεται μια έρευνα που διεξάχθηκε αποκλειστικά για τους σκοπούς της εργασίας και σκιαγραφεί την τάση χρησιμοποίησης λογισμικού διαχείρισης στόλου από τις ελληνικές επιχειρήσεις.
description: Over the past decade, tremendous changes have taken place in the supply chain. According to the worldwide recognized personality Christopher competition between companies became competition between supply chains. On the one hand, conditions such as globalization and internationalization of markets, the increasing need of companies to gain competitive advantages through reduced costs, improved quality, speed, flexibility, and innovation have led to the development of new systems of Logistics. On the other hand, the ability to utilize multiple channels of communication, the increased usage of new applications created by digital technology and the achievements of telematics are interactive tools for the management of transport vehicles and drivers. The present master thesis through extensive review of Greek and international literature attempts to analyze in detail the concept of fleet management systems and issues related to them. It also shows the top ten companies that offer fleet management solutions in the Greek market through a detailed statement of their operational characteristics. Finally, personal conclusions are made through an investigation conducted for the purposes of this master thesis that outlines the tendency of the fleet management’s software usage by Greek companies.
Solving the Bethe-Salpeter Equation on a Subspace: Approximations and Consequences for Low-dimensional Materials
Creators: name: Qiu, Diana Y.
name: da Jornada, Felipe H.
name: Louie, Steven G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: It is well known that the ambient environment can dramatically renormalize the quasiparticle gap and exciton binding energies in low-dimensional materials, but the effect of the environment on the energy splitting of the spin-singlet and spin-triplet exciton states is less understood. A prominent effect is the renormalization of the exciton binding energy and optical strength (and hence the optical spectrum) through additional screening of the direct Coulomb term describing the attractive electron-hole interaction in the kernel of the Bethe-Salpeter equation (BSE). The repulsive exchange interaction responsible for the singlet-triplet slitting, on the other hand, is unscreened within formal many-body perturbation theory. However, Loren Benedict argued that in practical calculations restricted to a subspace of the full Hilbert space, the exchange interaction should be appropriately screened by states outside of the subspace, the so-called $S$ approximation \cite{Benedict2002}. Here, we systematically explore the accuracy of the $S$ approximation for different confined systems, including a molecule and heterostructures of semiconducting and metallic layered materials. We show that the $S$ approximation is actually exact in the limit of small exciton binding energies (i.e., small direct term) and can be used to significantly accelerate convergence of the exciton energies with respect to the number of empty states, provided that a particular effective screening consistent with the conventional Tamm-Dancoff approximation is employed. We further find that the singlet-triplet splitting in the energy of the excitons is largely unaffected by the external dielectric environment for most quasi-two-dimensional materials.
Nonparametric Bayesian model selection and averaging
Creators: name: Ghosal, Subhashis
name: Lember, Jüri
name: van der Vaart, Aad
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62G07, 62G20, 62C10, 65U05, 68T05 (Primary)

description: We consider nonparametric Bayesian estimation of a probability density $p$ based on a random sample of size $n$ from this density using a hierarchical prior. The prior consists, for instance, of prior weights on the regularity of the unknown density combined with priors that are appropriate given that the density has this regularity. More generally, the hierarchy consists of prior weights on an abstract model index and a prior on a density model for each model index. We present a general theorem on the rate of contraction of the resulting posterior distribution as $n\to \infty$, which gives conditions under which the rate of contraction is the one attached to the model that best approximates the true density of the observations. This shows that, for instance, the posterior distribution can adapt to the smoothness of the underlying density. We also study the posterior distribution of the model index, and find that under the same conditions the posterior distribution gives negligible weight to models that are bigger than the optimal one, and thus selects the optimal model or smaller models that also approximate the true density well. We apply these result to log spline density models, where we show that the prior weights on the regularity index interact with the priors on the models, making the exact rates depend in a complicated way on the priors, but also that the rate is fairly robust to specification of the prior weights.
description: Published in at http://dx.doi.org/10.1214/07-EJS090 the Electronic Journal of Statistics (http://www.i-journals.org/ejs/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Additional file 1 of A cross-sectional study to identify the determinants of non-communicable diseases among fishermen in Southern India
Creators: name: Doddamani, Akhila
name: Ballala, A. B. Kirthinath
name: Madhyastha, Sharath P.
name: Kamath, Asha
name: Kulkarni, Muralidhar M.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1.
Κριτική Ανάλυση Περίπτωσης Εθνικιστικού και Αντιοικουμενικού Λόγου στην Ελλάδα:
Creators: name: Διαμαντής, Φώτιος Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Οικουμενική θεολογία
Αντιοικουμενικός λόγος
Εθνικιστικός λόγος
Ecumenical theology
Anti-ecumenical discourse
Nationalist discourse

description: Σκοπός της διατριβής ήταν η μελέτη του αντι-οικουμενικού λόγου στο χώρο της Ελλαδικής Εκκλησίας και το πώς αυτός ο λόγος σχετίζεται με τον εθνικιστικό λόγο που αρθρώνεται στη χώρα μας. Η μέθοδος που επιλέξαμε ήταν η «Μελέτη Περίπτωσης» σε κείμενα ενός «θρησκευτικού σωματείου» και χρησιμοποιήσαμε ως μεθοδολογικό εργαλείο την «Κριτική Ανάλυση Λόγου». Σε αυτή τη διάσταση, σε μια πρώτη φάση ανιχνεύσαμε τα κειμενικά θέματα από το σύνολο των κειμένων και στη συνέχεια αναλύσαμε δύο από αυτά. Τέλος έγινε η εμπειρική και θεωρητική ανάδειξη των ευρημάτων της έρευνας.
description: The aim of the present thesis was the study of the anti-ecumenical discourse at the Greek Church and how that discourse relates to the nationalist discourse articulated in our country. The method chosen was a “Study Case” in texts of a “religious corporation” and we used as a methodological tool the “Critical Discourse Analysis”. In this dimension, initially we detected textual issues/topics from all the texts and then we analyzed two of them. Finally, there was the emergence of empirical and theoretical research findings.
Partial Label Learning for Emotion Recognition from EEG
Creators: name: Zhang, Guangyi
name: Etemad, Ali
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Fully supervised learning has recently achieved promising performance in various electroencephalography (EEG) learning tasks by training on large datasets with ground truth labels. However, labeling EEG data for affective experiments is challenging, as it can be difficult for participants to accurately distinguish between similar emotions, resulting in ambiguous labeling (reporting multiple emotions for one EEG instance). This notion could cause model performance degradation, as the ground truth is hidden within multiple candidate labels. To address this issue, Partial Label Learning (PLL) has been proposed to identify the ground truth from candidate labels during the training phase, and has shown good performance in the computer vision domain. However, PLL methods have not yet been adopted for EEG representation learning or implemented for emotion recognition tasks. In this paper, we adapt and re-implement six state-of-the-art PLL approaches for emotion recognition from EEG on two large emotion datasets (SEED-IV and SEED-V). These datasets contain four and five categories of emotions, respectively. We evaluate the performance of all methods in classical, circumplex-based and real-world experiments. The results show that PLL methods can achieve strong results in affective computing from EEG and achieve comparable performance to fully supervised learning. We also investigate the effect of label disambiguation, a key step in many PLL methods. The results show that in most cases, label disambiguation would benefit the model when the candidate labels are generated based on their similarities to the ground truth rather than obeying a uniform distribution. This finding suggests the potential of using label disambiguation-based PLL methods for circumplex-based and real-world affective tasks.
description: 15 pages, 13 figures
Exact solution to perturbative conformal cosmology from recombination until the current era
Creators: name: Amarasinghe, Asanka
name: Liu, Tianye
name: Norman, Daniel A.
name: Mannheim, Philip D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In a previous paper (P. D. Mannheim, Phys. Rev. D 102, 123535 (2020)) we studied cosmological perturbation theory in the cosmology associated with the fourth-order derivative conformal gravity theory, and provided an exact solution to the theory in the recombination era. In this paper we present an exact solution that holds all the way from recombination until the current era.
description: 23 pages. arXiv admin note: substantial text overlap with arXiv:2009.06841
A search for strong, ordered magnetic fields in Herbig Ae/Be stars
Creators: name: Wade, G. A.
name: Bagnulo, S.
name: Drouin, D.
name: Landstreet, J. D.
name: Monin, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The origin of magnetic fields in intermediate-mass and high-mass stars is fundamentally a mystery. Clues toward solving this basic astrophysical problem can likely be found at the pre-main sequence (PMS) evolutionary stage. With this work, we perform the largest and most sensitive search for magnetic fields in pre-main sequence Herbig Ae/Be (HAeBe) stars. Sixty-eight observations of 50 HAeBe stars have been obtained in circularly polarised light using the FORS1 spectropolarimeter at the ESO VLT. An analysis of both Balmer and metallic lines reveals the possible presence of weak longitudinal magnetic fields in photospheric lines of two HAeBe stars, HD 101412 and BF Ori. The intensity of the longitudinal fields detected in HD 101412 and BF Ori suggest that they correspond to globally-ordered magnetic fields with surface intensities of order 1 kG. Monte Carlo simulations of the longitudinal field measurements of the undetected stars allow us to place an upper limits of about 300 G on the general presence of aligned magnetic dipole magnetic fields, and of about 500 G on perpendicular dipole fields. We find that the observed bulk incidence of magnetic HAeBe stars in our sample is 8-12%, in good agreement with that of magnetic main sequence stars of similar masses. We also find that the rms longitudinal field intensity of magnetically-detected HAeBe stars is similar to that of Ap stars and consistent with magnetic flux conservation during stellar evolution. These results are all in agreement with the hypothesis that the magnetic fields of main sequence Ap/Bp stars are fossils, which already exist within the stars at the pre-main sequence stage. Finally, we explore the ability of our new magnetic data to constrain magnetospheric accretion in Herbig Ae/Be stars.
description: Accepted by Monthly Notices of the Royal Astronomical Society, 2007 January 11. Received 2007 January 11; in original form 2006 August 18. The paper contains 18 pages, 11 figures and 2 tables
Additional file 1 of Role of Snf-β in lipid accumulation in the high lipid‐producing fungus Mucor circinelloides WJ11
Creators: name: Nosheen, Shaista
name: Naz, Tahira
name: Junhuan Yang
name: Hussain, Syed Ammar
name: Fazili, Abu Bakr Ahmad
name: Nazir, Yusuf
name: Shaoqi Li
name: Mohamed, Hassan
name: Yang, Wu
name: Kiren Mustafa
name: Song, Yuanda
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Computational Biology

description: Additional file 1: Fig. S1. Cell growth and lipid content analysis of transformants and control strains at 96 h: a) cell dry weight (CDW) of wild type control (MU2075) and knockout transformant (MU1576 and MU1577), b) lipid content of MU2075, MU1576 and MU1577, c) cell dry weight (CDW) of wild type control (MU2075), strain with empty pMAT2075 plasmid (Mc2075) and overexpressing transformant (Mc3075, Mc3076, Mc3077) d) lipid content of MU2075, Mc2075 Mc3075, Mc3076, Mc3077. Error bars represent standard deviations (n = 3). Table S1. Primer sequences used in this study.
Χρήση Τεχνολογιών Πληροφορίας και Επικοινωνίας στη Διδακτική των Μαθηματικών στη Δευτεροβάθμια Εκπαίδευση:
Creators: name: Δελιγκάς, Γραμμένος Δημήτριος
Publisher: name: Aristotle University of Thessaloniki
Year: 2010
Subjects: Διδακτική των μαθηματικών
Εκπαιδευτικό λογισμικό Function Probe
Συνεργατική μάθηση
Didactics of Mathematics
Education software Function Probe
Collaborative learning

description: Αντικείμενο της παρούσης εργασίας είναι η μελέτη περίπτωσης, που έχει ως βασικό στόχο, την αποτίμηση της δυνατότητας διδασκαλίας της Άλγεβρας στη δευτεροβάθμια εκπαίδευση, συνεργατικά και με τη χρήση εκπαιδευτικού λογισμικού. Το σενάριο που σχεδιάστηκε, περιλάμβανε, την εφαρμογή τριών διαφορετικών μεθόδων διδασκαλίας, σε τρία διαφορετικά τμήματα μαθητών: (α) παραδοσιακός, (β) συνεργατική μάθηση και (γ) συνεργατική μάθηση με αξιοποίηση εκπαιδευτικού λογισμικού. Τα φύλλα εργασίας που συντάχθηκαν, περιείχαν κατάλληλες εφαρμογές, για τη διδασκαλία της γραμμικής συνάρτησης y=αx+β. Το μεθοδολογικό πλαίσιο αξιολόγησης, βασίστηκε, στην καταγραφή των συνθηκών υλοποίησης του σεναρίου, καθώς και στη στατιστική επεξεργασία δεδομένων, που προέκυψαν, από ερωτηματολόγια που συμπλήρωσαν οι μαθητές και από διαγώνισμα, στο οποίο συμμετείχαν στο τέλος της δραστηριότητας. Τα αποτελέσματα που προέκυψαν, ενισχύουν την άποψη της αξιοποίησης των νέων τεχνολογιών, σε συνδυασμό με τη συνεργατική μάθηση, στη μαθηματική εκπαίδευση, καθώς και της αλλαγής ρόλου για τον καθηγητή, από απλό μεταφορέα της γνώσης, σε καθοδηγητή και συντονιστή.
description: The present work is a case study aiming at the assessment of methods of teaching mathematics (Algebra) in secondary grade education (high school) using educational software. The case study scenario consists of the application of three methods of education in three different classes of the first class of high school (pupils 16 years old) : a) traditional method b)collaborative learning c) collaborative learning using educational software. The worksheets used contained applications for the teaching of linear function equation. The methodological evaluation frame was based both on the recording of the conditions of implementation of the case study scenario and on the statistical analysis of data from questionnaires filled by the pupils and from tests in the end of the class activity. The results reinforce the choice of a)use of new technologies applications in collaborative learning for supporting the teaching of mathematics b) the modification of the role of the teacher from the simple knowledge transfer to the knowledge coordination.
One-shot manipulation of entanglement for quantum channels
Creators: name: Kim, Ho-Joon
name: Lee, Soojoon
name: Lami, Ludovico
name: Plenio, Martin B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that the dynamic resource theory of quantum entanglement can be formulated using the superchannel theory. In this formulation, we identify the separable channels and the class of free superchannels that preserve channel separability as free resources, and choose the swap channels as dynamic entanglement golden units. Our first result is that the one-shot dynamic entanglement cost of a bipartite quantum channel under the free superchannels is bounded by the standard log-robustness of channels. The one-shot distillable dynamic entanglement of a bipartite quantum channel under the free superchannels is found to be bounded by a resource monotone that we construct from the hypothesis-testing relative entropy of channels with minimization over separable channels. We also address the one-shot catalytic dynamic entanglement cost of a bipartite quantum channel under a larger class of free superchannels that could generate the dynamic entanglement which is asymptotically negligible; it is bounded by the generalized log-robustness of channels.
description: 19 pages, 5 figures. See two independent related works by B. Regula and R. Takagi, and by X. Yuan et al
Vortex configurations and critical parameters in superconducting thin films containing antidot arrays: Nonlinear Ginzburg-Landau theory
Creators: name: Berdiyorov, G. R.
name: Milošević, M. V.
name: Peeters, F. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Using the non-linear Ginzburg-Landau (GL) theory, we obtain the possible vortex configurations in superconducting thin films containing a square lattice of antidots. The equilibrium structural phase diagram is constructed which gives the different ground-state vortex configurations as function of the size and periodicity of the antidots for a given effective GL parameter $κ^{*}$. Giant-vortex states, combination of giant- and multi-vortex states, as well as symmetry imposed vortex-antivortex states are found to be the ground state for particular geometrical parameters of the sample. The antidot occupation number $n_o$ is calculated as a function of related parameters and comparison with existing expressions for the saturation number $n_s$ and with experimental results is given. For a small radius of antidots a triangular vortex lattice is obtained, where some of the vortices are pinned by the antidots and some of them are located between them. Transition between the square pinned and triangular vortex lattices is given for different values of the applied field. The enhanced critical current at integer and rational matching fields is found, where the level of enhancement at given magnetic field directly depends on the vortex-occupation number of the antidots. For certain parameters of the antidot lattice and/or temperature the critical current is found to be larger for higher magnetic fields. Superconducting/normal $H-T$ phase boundary exhibits different regimes as antidots are made larger, and we transit from a plain superconducting film to a thin-wire superconducting network. Presented results are in good agreement with available experiments and suggest possible new experiments.
description: 15 pages and 20 figures
Quantum simulation of spin ordering with nuclear spins in a solid state lattice
Creators: name: Roumpos, Georgios
name: Master, Cyrus P.
name: Yamamoto, Yoshihisa
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: An experiment demonstrating the quantum simulation of a spin-lattice Hamiltonian is proposed. Dipolar interactions between nuclear spins in a solid state lattice can be modulated by rapid radio-frequency pulses. In this way, the effective Hamiltonian of the system can be brought to the form of an antiferromagnetic Heisenberg model with long range interactions. Using a semiconducting material with strong optical properties such as InP, cooling of nuclear spins could be achieved by means of optical pumping. An additional cooling stage is provided by adiabatic demagnetization in the rotating frame (ADRF) down to a nuclear spin temperature at which we expect a phase transition from a paramagnetic to antiferromagnetic phase. This phase transition could be observed by probing the magnetic susceptibility of the spin-lattice. Our calculations suggest that employing current optical pumping technology, observation of this phase transition is within experimental reach.
description: 11 pages, 3 figues; Published version
Χαρακτηρισμός Οπτικής Ίνας Ερβίου για Χρήση σε Οπτικό Ενισχυτή EDFA (Erbium-Doped Fiber Amplifier):
Creators: name: Νήτας, Μιχάλης Δημοσθένη
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Ενισχυτής
Ντοπαρισμένη
Ινα
EDFA
Fiber
Amplifier

description: Η παρούσα εργασία ασχολείται με το χαρακτηρισμό οπτικής ίνας ερβίου για τη χρήση της σε οπτικό EDFA ενισχυτή. Ύστερα από μια σύντομη εισαγωγή στους οπτικούς ενισχυτές στο 1ο κεφάλαιο, ακολουθεί η θεωρητική ανάλυση για την ίνα ερβίου στο 2ο κεφάλαιο, σε συνδυασμό με τους κώδικες που χρησιμοποιήθηκαν στο Matlab. Στο 3ο και τελευταίο κεφάλαιο παρουσιάζονται και σχολιάζονται τα θεωρητικά και πειραματικά αποτελέσματα που προέκυψαν από τις μετρήσεις στο εργαστήριο.
description: This thesis concerns the characterization of an Erbium-doped optical fiber in order to be used in an EDFA amplifier. In the first chapter, there is a brief introduction to optical amplifiers in general. The basic types of optical amplifiers are described: Semiconductor Optical Amplifiers- SOAs as well as Doped Fiber Amplifiers- DFAs are the two basic categories of optical amplifiers. In addition, the main applications of optical amplifiers are mentioned: In -line amplifiers, Power amplifiers, Preamplifiers and LAN amplifiers.
Άψαλος: Η κεραμική της τομής ΙΓ και η κεραμική με κόκκινο επίχρισμα των ορυγμάτων του νεολιθικού οικισμού:
Creators: name: Βουζαρά, Γαρυφαλλιά Σταύρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2010
Subjects: Αψαλος
Κεραμική
ΜΝ
Apsalos
Pottery
MN

description: Αντικείμενο αυτής της μεταπτυχιακής εργασίας είναι η μελέτη της κεραμικής του προϊστορικού οικισμού της Αψάλου, του νομού Πέλλας. Ο οικισμός είναι επίπεδος εκτεταμένος και χρονολογείται στη μέση νεολιθική εποχή. Μελετήθηκε η κεραμική από την τομή ΙΓ του Βόρειου ορύγματος και η κεραμική με κόκκινο επίχρισμα από τομές και των δύο ορυγμάτων. Επιπλέον αναλύεται η γραπτή κεραμική με οργανική ύλη bitumen.
description: The subject of this study is the pottery technology of Apsalos, a prehistoric site in northern Greece. It is a flat-extended site of the middle Neolithic age. The material studied comes from the trench IG of the North ditch and the red-slipped pottery of both ditces. In addition it is analyzed the decorated pottery painted with the organic material bitumen.
A qualitative modeling facility for intelligent supervisory control systems (ISCSs)
Creators: name: Cifuentes, Edgardo Ivan
Publisher: name: University of British Columbia
Year: 2009

description: Control strategies based on purely mathematical algorithms have only limited ability to cope with the type of operating conditions found in full-scale industrial applications. One approach to overcome this limitation integrates elements of automatic control theory, artificial intelligence and operations research into the design of a control system. This approach is employed in this research study to design an intelligent supervisory control system (ISCS). Elements of artificial intelligence to provide “human-like” characteristics for the ISCS are central to this research. Pseudo-Qualitative Modeling as a central component of an ISCS is proposed in this research. This approach provides the mechanisms required by the ISCS to handle heuristic knowledge and approximate reasoning required in many supervisory control applications. A simulation study has been performed to demonstrate the validity of this approach. Simulation results have shown that this technique can handle either poorly-defined heuristic models or accurate models based on mathematical concepts. In fact, pseudo-qualitative modeling provides a framework to integrate qualitative and numerical models into a knowledge-based system. A prototype of an ISCS was implemented using ProcessVision, a real-time SCADA (Supervisory Control And Data Acquisition) software package. This prototype system was applied to the C-line grinding circuit at Highland Valley Copper (HVC) to monitor and detect tonnage restrictions that affect circuit production. The diagnosis of tonnage restriction is currently performed manually by metallurgists on a weekly basis. This method is a heuristic procedure based on highly subjective judgment. The diagnosis results provided by the ISCS prototype during the evaluation period were well within the range of those reported by HVC metallurgists. Implementation of this ISCS prototype has demonstrated the feasibility of incorporating qualitative modeling into a commercial real-time SCADA system widely used in industrial applications.
Hypersensitivity and chaos signatures in the quantum baker's maps
Creators: name: Scott, A. J.
name: Brun, Todd A.
name: Caves, Carlton M.
name: Schack, Ruediger
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Classical chaotic systems are distinguished by their sensitive dependence on initial conditions. The absence of this property in quantum systems has lead to a number of proposals for perturbation-based characterizations of quantum chaos, including linear growth of entropy, exponential decay of fidelity, and hypersensitivity to perturbation. All of these accurately predict chaos in the classical limit, but it is not clear that they behave the same far from the classical realm. We investigate the dynamics of a family of quantizations of the baker's map, which range from a highly entangling unitary transformation to an essentially trivial shift map. Linear entropy growth and fidelity decay are exhibited by this entire family of maps, but hypersensitivity distinguishes between the simple dynamics of the trivial shift map and the more complicated dynamics of the other quantizations. This conclusion is supported by an analytical argument for short times and numerical evidence at later times.
description: 32 pages, 6 figures
Additional file 1 of High flow nasal oxygen therapy to avoid invasive mechanical ventilation in SARS-CoV-2 pneumonia: a retrospective study
Creators: name: Bonnet, Nicolas
name: Martin, Olivier
name: Boubaya, Marouane
name: Levy, Vincent
name: Ebstein, Nathan
name: Karoubi, Philippe
name: Tandjaoui-Lambiotte, Yacine
name: Meersch, Guillaume Van Der
name: Oziel, Johanna
name: Soulie, Marie
name: Ghalayini, Mohamed
name: Anais Winchenne
name: Zahar, Jean Ralph
name: Passem Ahmed
name: Gaudry, Stéphane
name: Cohen, Yves
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1: Figure S1 Plot - missing data for each variables.
Phase diagram of vortex matter in layered superconductors with random point pinning
Creators: name: Dasgupta, Chandan
name: Valls, Oriol T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the phase diagram of the superconducting vortex system in layered high-temperature superconductors in the presence of a magnetic field perpendicular to the layers and of random atomic scale point pinning centers. We consider the highly anisotropic limit where the pancake vortices on different layer are coupled only by their electromagnetic interaction. The free energy of the vortex system is then represented as a Ramakrishnan-Yussouff free energy functional of the time averaged vortex density. We numerically minimize this functional and examine the properties of the resulting phases. We find that, in the temperature ($T$) -- pinning strength ($s$) plane at constant magnetic induction, the equilibrium phase at low $T$ and $s$ is a Bragg glass. As one increases $s$ or $T$ a first order phase transition occurs to another phase that we characterize as a pinned vortex liquid. The weakly pinned vortex liquid obtained for high $T$ and small $s$ smoothly crosses over to the strongly pinned vortex liquid as $T$ is decreased or $s$ increased -- we do not find evidence for the existence, in thermodynamic equilibrium, of a distinct vortex glass phase in the range of pinning parameters considered here. %cdr We present results for the density correlation functions, the density and defect distributions, and the local field distribution accessible via $μ$SR experiments. These results are compared with those of existing theoretical, numerical and experimental studies.
description: 15 pages, including figures. Higher resolution files for Figs 3a and 11 available from authors
Photoionization of $nS$ and $nD$ Rydberg atoms of Rb and Cs from the near-infrared to the ultraviolet spectral region
Creators: name: Viray, Michael A.
name: Paradis, Eric
name: Raithel, Georg
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present calculations of the photoionization (PI) cross sections of rubidium and cesium Rydberg atoms for light with wavelengths ranging from the infrared to the ultraviolet, using model potentials from [M. Marinescu, H. R. Sadeghpour, and A. Dalgarno, Phys. Rev. A 49, 982 (1994)]. The origins of pronounced PI minima are identified by investigating the free-electron wavefunctions. These include broad PI minima in the $nS$ to $εP$ PI channels of both Rb and Cs, with free-electron energy $ε$, which are identified as Cooper minima. Much narrower PI minima in the $nD$ to $εF$ channels are due to shape resonances of the free-electron states. We describe possible experimental procedures for measuring the PI minima, and we discuss their implications in fundamental atomic physics as well as in practical applications.
description: 8 pages, 2 figures
The development of the Pseudomonas aeruginosa outer membrane protein OprF as a presentation vector for foreign antigenic determinants
Creators: name: Wong, Rebecca Suk Yi
Publisher: name: University of British Columbia
Year: 2009

description: A variety of systems have been developed to improve the presentation of foreign antigenic determinants (‘epitopes’) by inserting them in the context of carrier proteins. The goals of this study were to develop the Pseudomonas aeruginosa outer membrane protein OprF as a carrier for foreign epitopes and to study the effect of the mode of presentation on the antigenicity of the presented epitope. The model epitope used in this study was the 4-amino acid repeating epitope (NANP) of the circumsporozoite protein of the malaria parasite, Plasmodium falciparum. Linker-insertion mutagenesis was carried out to create 11 “permissive” sites which allowed the insertion of 4 extra amino acids. Two series of OprF
Exact density-potential pairs from the holomorphic Coulomb field
Creators: name: Ciotti, L.
name: Giampieri, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We show how the complex-shift method introduced by Appell in gravity to the case of a point mass (and applied among others in electrodynamics by Newman, Carter, Lynden-Bell, and Kaiser to determine remarkable properties of the electromagnetic field of rotating charged configurations), can be extended to obtain new and explicit density-potential pairs for self-gravitating systems departing significantly from spherical symmetry. The rotational properties of two axysimmetric baroclinic gaseous configurations derived with the proposed method are illustrated.
description: 8 pages, 2 figures, MNRAS accepted
Additional file 2 of High flow nasal oxygen therapy to avoid invasive mechanical ventilation in SARS-CoV-2 pneumonia: a retrospective study
Creators: name: Bonnet, Nicolas
name: Martin, Olivier
name: Boubaya, Marouane
name: Levy, Vincent
name: Ebstein, Nathan
name: Karoubi, Philippe
name: Tandjaoui-Lambiotte, Yacine
name: Meersch, Guillaume Van Der
name: Oziel, Johanna
name: Soulie, Marie
name: Ghalayini, Mohamed
name: Anais Winchenne
name: Zahar, Jean Ralph
name: Passem Ahmed
name: Gaudry, Stéphane
name: Cohen, Yves
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 2: Table S1. sensitivity analysis with IPTW truncated at 95% and after excluded HFNO flow rate < 50L/min.
Symplectic eigenvalue problem via trace minimization and Riemannian optimization
Creators: name: Son, Nguyen Thanh
name: Absil, P. -A.
name: Gao, Bin
name: Stykel, Tatjana
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 15A15, 15A18, 70G45

description: We address the problem of computing the smallest symplectic eigenvalues and the corresponding eigenvectors of symmetric positive-definite matrices in the sense of Williamson's theorem. It is formulated as minimizing a trace cost function over the symplectic Stiefel manifold. We first investigate various theoretical aspects of this optimization problem such as characterizing the sets of critical points, saddle points, and global minimizers as well as proving that non-global local minimizers do not exist. Based on our recent results on constructing Riemannian structures on the symplectic Stiefel manifold and the associated optimization algorithms, we then propose solving the symplectic eigenvalue problem in the framework of Riemannian optimization. Moreover, a connection of the sought solution with the eigenvalues of a special class of Hamiltonian matrices is discussed. Numerical examples are presented.
description: 24 pages, 2 figures
Additional file 1 of Assessment of midwifery care providers intrapartum care competencies, in four sub-Saharan countries: a mixed-method study protocol
Creators: name: Ann-Beth Moller
name: Welsh, Joanne
name: Gross, Mechthild M.
name: Petzold, Max
name: Ayebare, Elizabeth
name: Chipeta, Effie
name: Hounkpatin, Hashim
name: Kandeya, Bianca
name: Mwilike, Beatrice
name: Sognonvi, Antoinette
name: Hanson, Claudia
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. STROBE statement.
XL-MIMO Energy-Efficient Antenna Selection under Non-Stationary Channels
Creators: name: Ubiali, Gabriel Avanzi
name: Abrão, Taufik
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Massive multiple-input-multiple-output (M-MIMO) is a key technology for 5G networks. Within this research area, new types of deployment are arising, such as the extremely-large regime (XL- MIMO), where the antenna array at the base station (BS) has extreme dimensions. As a consequence, spatial non-stationary properties appear as the users see only a portion of the antenna array, which is called visibility region (VR). In this challenging transmission-reception scenario, an algorithm to select the appropriate antenna-elements for processing the received signal of a given user in the uplink (UL), as well as to transmit the signal of this user during downlink (DL) is proposed. The advantage of not using all the available antenna-elements at the BS is the computational burden and circuit power consumption reduction, improving the energy efficiency (EE) substantially. Numerical results demonstrate that one can increase the EE without compromising considerably the spectral efficiency (SE). Under few active users scenario, the performance of the XL-MIMO system shows that the EE is maximized using less than 20% of the antenna-elements of the array, without compromising the SE severely.
description: 25 pages, 8 figures, 4 tables, published paper
Architected Elastomer Networks for Optimal Electromechanical Response
Creators: name: Grasinger, Matthew
name: Dayal, Kaushik
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Dielectric elastomers (DEs) that couple deformation and electrostatics have the potential for use in soft sensors and actuators with applications ranging from robotic, biomedical, energy, aerospace and automotive technologies. However, currently available DEs are limited by weak electromechanical coupling and require large electric fields for significant actuation. In this work, a statistical mechanics-based model of DE chains is applied to elucidate the role of a polymer network architecture in the performance of the bulk material. Given a polymer network composed of chains that are cross-linked, the paper examines the role of cross-link density, orientational density of chains, and other network parameters in determining the material properties of interest including elastic modulus, electrical susceptibility, and the electromechanical coupling. From this analysis, a practical strategy is presented to increase the deformation and usable work derived from (anisotropic) dielectric elastomer actuators by as much as $75-100\%$.
description: To appear in the Journal of the Mechanics and Physics of Solids
Additional file 3 of High flow nasal oxygen therapy to avoid invasive mechanical ventilation in SARS-CoV-2 pneumonia: a retrospective study
Creators: name: Bonnet, Nicolas
name: Martin, Olivier
name: Boubaya, Marouane
name: Levy, Vincent
name: Ebstein, Nathan
name: Karoubi, Philippe
name: Tandjaoui-Lambiotte, Yacine
name: Meersch, Guillaume Van Der
name: Oziel, Johanna
name: Soulie, Marie
name: Ghalayini, Mohamed
name: Anais Winchenne
name: Zahar, Jean Ralph
name: Passem Ahmed
name: Gaudry, Stéphane
name: Cohen, Yves
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 3: Table S2. Predictive factors associated with invasive mechanical ventilation for patients under High Flow Nasal Oxygenation.