cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fabrication of Poly (D,L-Lactic-Co-Glycolic Acid) Microparticles for Improved Human Papillomavirus Vaccine Delivery
Creators: name: Brown, Rachel
name: Cesewski, Ellen
name: Fix, Jonathan
name: Freudenberger, Devon
name: Higgins, Kara
name: McMahon, Eileen
name: Niba, Vanessa
name: Park, Hoon
name: Perdomo, Gabriela
name: Seo, Anna
name: Srivastava, Avantika
name: Tsui, Christina
name: Whiteman, Aaron
name: Zubajlo, Rebecca
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: Human papillomavirus (HPV)
controlled-release vaccines
microparticles
Gemstone Team EPIDEMICS

description: Human papillomavirus (HPV) is the leading cause of cervical cancer and the most prevalent sexually transmitted disease worldwide. HPV vaccines require a multi-dose regimen to provide immunity, contributing to low patient compliance. We addressed this problem by formulating biodegradable poly(D,L-lactic-co-glycolic acid) (PLGA) microparticles and assessing their viability for use in controlled-release vaccines. We hypothesized that we could alter fabrication parameters to produce 1-10 μm microparticles in order to encapsulate ovalbumin (OVA) and HPV virus-like particles (VLPs). Microparticles were fabricated using a double emulsion method and used to elicit an immune response in JAWSII cells. Our results contribute to knowledge of vaccine delivery mechanisms and controlled-release technology, and could contribute to the creation of a viable controlled-release HPV vaccine.
UniFuse: Unidirectional Fusion for 360$^{\circ}$ Panorama Depth Estimation
Creators: name: Jiang, Hualie
name: Sheng, Zhe
name: Zhu, Siyu
name: Dong, Zilong
name: Huang, Rui
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Learning depth from spherical panoramas is becoming a popular research topic because a panorama has a full field-of-view of the environment and provides a relatively complete description of a scene. However, applying well-studied CNNs for perspective images to the standard representation of spherical panoramas, i.e., the equirectangular projection, is suboptimal, as it becomes distorted towards the poles. Another representation is the cubemap projection, which is distortion-free but discontinued on edges and limited in the field-of-view. This paper introduces a new framework to fuse features from the two projections, unidirectionally feeding the cubemap features to the equirectangular features only at the decoding stage. Unlike the recent bidirectional fusion approach operating at both the encoding and decoding stages, our fusion scheme is much more efficient. Besides, we also designed a more effective fusion module for our fusion scheme. Experiments verify the effectiveness of our proposed fusion strategy and module, and our model achieves state-of-the-art performance on four popular datasets. Additional experiments show that our model also has the advantages of model complexity and generalization capability.The code is available at https://github.com/alibaba/UniFuse-Unidirectional-Fusion.
description: IEEE Robotics and Automation Letters and ICRA 2021; Demo: https://youtu.be/9vm9OMksvrc; Code: https://github.com/alibaba/UniFuse-Unidirectional-Fusion
Το παιδαγωγικό και φιλανθρωπικό έργο της ρωμαίικης κοινότητας Σταυροδρομίου Κωνσταντινουπόλεως κατά τον 20ο αιώνα. Τα σχολικά συσσίτια
Creators: name: Δεληγιάννη, Νικολέττα Αρμάνδου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Σταυροδρόμι (τοπονύμιο)
Φιλανθρωπία
Συσσίτια
Stavrodromi (place name)
Charity
Common meals

description: Αντικείμενο της παρούσας εργασίας είναι να περιγράψει την πορεία της λειτουργίας της κοινότητος Σταυροδρομίου κατά τον 20ο αιώνα, όπως αυτή εκφράστηκε από τους βασικούς πυλώνες της Ρωμιοσύνης, την εκπαίδευση και την εκκλησία, έχοντας ως επίκεντρο τα σχολικά συσσίτια. Κατά την διάρκεια του 20ου αιώνα ο ελληνισμός της Κωνσταντινούπολης βίωσε όλο το φάσμα των εμπειριών μιας κοινότητας που από την απόλυτη ακμή και αίγλη οδηγήθηκε στην εξαθλίωση και τον αποδεκατισμό. Χρησιμοποιώντας στοιχεία και έγγραφα από τα αρχεία των εκκλησιών και σχολείων της κοινότητας Σταυροδρομίου, ιστορικές αναλύσεις, συγγράμματα και δημοσιεύσεις που εκπόνησαν άτομα που ασχολήθηκαν με την κοινότητα Σταυροδρομίου καθώς και μέσα από προσωπικές μαρτυρίες ανθρώπων που βίωσαν ή και εξακολουθούν να βιώνουν την Κωνσταντινοπολίτικη πραγματικότητα, στην παρούσα εργασία διερευνάται και αποτυπώνεται η επίδραση των ιστορικών εξελίξεων του 20ου αιώνα στην λειτουργία των ρωμαίικων συσσιτίων και καταγράφεται πώς η λειτουργία των συσσιτίων διαμορφώθηκε κάτω από τις εκάστοτε συνθήκες ώστε να καλύψει τις ανάγκες της ρωμαίικης κοινότητας αλλά και του ελληνισμού γενικότερα.
description: During the 20th century the Greek Orthodox community of Stavrodromi (i.e. Pera or Beyoglou) - the once most populous and successful of the city - lived its time of glorious prosperity followed by a time of great suffering that led the community population near to extinction due to repeated state-sponsored pogroms, continuous discrimination, pressure and attacks. The purpose of the present study is to describe the path and function of the Greek Orthodox Community of Stavrodromi during the 20th century as this is expressed through educational and religious practices and particularly as this is pictured and revealed through the function and operation of the organized common meals offered by the Community. The present work is a synthesis of historical data drawn from published studies and analyses along with research largely based on material from the archives of the Greek Orthodox parishes of Pera as well as on personal testimonies from people who have been part of Pera all their life.
Approach to scaling in axion string networks
Creators: name: Hindmarsh, Mark
name: Lizarraga, Joanes
name: Lopez-Eiguren, Asier
name: Urrestilla, Jon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the approach to scaling in axion string networks in the radiation era, through measuring the root-mean-square velocity $v$ as well as the scaled mean string separation $x$. We find good evidence for a fixed point in the phase-space analysis in the variables $(x,v)$, providing a strong indication that standard scaling is taking place. We show that the approach to scaling can be well described by a two parameter velocity-one-scale (VOS) model, and show that the values of the parameters are insensitive to the initial state of the network. The string length has also been commonly expressed in terms of a dimensionless string length density $ζ$, proportional to the number of Hubble lengths of string per Hubble volume. In simulations with initial conditions far from the fixed point $ζ$ is still evolving after half a light-crossing time, which has been interpreted in the literature as a long-term logarithmic growth. We show that all our simulations, even those starting far from the fixed point, are accounted for by a VOS model with an asymptote of $ζ_*=1.20\pm0.09$ (calculated from the string length in the cosmic rest frame) and $v_* = 0.609\pm 0.014$.
description: 14 pages, 9 figures. v2: Minor changes, matches published version
A Terrestrial-mass Planet Orbiting GJ 1151: The Possible Source of Coherent Low-frequency Radio Emission from an Inactive Star
Creators: name: Stefansson, Gudmundur
name: Mahadevan, Suvrath
name: Robertson, Paul
name: Terrien, Ryan
name: Ninan, Joe
name: Holcomb, Rae
name: Halverson, Samuel
name: Cochran, William
name: Kanodia, Shubham
name: Ramsey, Lawrence
name: Wolszczan, Alexander
name: Endl, Michael
name: Bender, Chad
name: Diddams, Scott
name: Frederick, Connor
name: Hearty, Frederick
name: Monson, Andrew
name: Metcalf, Andrew
name: Roy, Arpita
name: Schwab, Christian
Publisher: name: Zenodo
Year: 2021
Subjects: Very low mass stars
exoplanets

description: The coherent low-frequency radio emission detected by LOFAR from the quiescent M4.5 dwarf star GJ 1151 is consistent with theoretical expectations of star-planet interactions for an Earth-sized planet on a 1-5 day orbit. Using precise near-infrared radial velocities (RVs) with the Habitable-zone Planet Finder (HPF) on the 10m Hobby-Eberly Telescope at McDonald Observatory along with literature RVs from HARPS-N, we reveal a periodic Doppler signature consistent with a 2.5 Earth mass planet in a 2.02-day orbit. Precise photometry from the Transiting Exoplanet Survey Satellite (TESS) shows no flares or activity signature, consistent with a quiescent M dwarf. While no planetary transit is detected in the TESS data, a weak photometric modulation is detectable in the photometry at a ~2 day period. This independent detection of a planet signal with the RV technique adds further weight to the claim to one of the first detection of star-exoplanet interactions at radio wavelengths, and helps validate this emerging technique for the detection of exoplanets. 
Effectiveness of a text message intervention to improve road safety among new drivers
Creators: name: Harjani, Trisha
name: Blas, Neus Torres
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Social and Behavioral Sciences

description: This trial is evaluating a text message intervention targeting drivers who have recently passed their practical driving test and received their licence. The Driver Vehicle Standards Authority (DVSA) is partnering with BIT and ESCC to deliver text messages to drivers who have passed their test between January 2024 and June 2024, and have a registered Sussex Postcode.
Quantum-geometry-induced intrinsic optical anomaly in multiorbital superconductors
Creators: name: Chen, Weipeng
name: Huang, Wen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Bloch electrons in multiorbital systems carry nontrivial quantum geometric information characteristic of their orbital composition as a function of their wave vector. When such electrons form Cooper pairs, the resultant superconducting state naturally inherits aspects of the quantum geometry. In this paper, we study how this geometric character is revealed in the intrinsic optical response of the superconducting state. In particular, due to the superconducting gap opening, interband optical transitions involving states around the Fermi level are forbidden. This generally leads to an anomalous suppression of the optical conductivity at frequencies matching the band separation -- which could be significantly higher than the superconducting gap energy. We discuss how the predicted anomaly may have already emerged in two earlier measurements on an iron-based superconductor. When interband Cooper pairing is present, intraband optical transitions may be allowed and finite conductivity emerges at low frequencies right above the gap edge. These conductivities depend crucially on the off-diagonal elements of the velocity matrix in the band representation, i.e. the interband velocity -- which is related to the non-Abelian Berry connection of the Bloch states.
description: 5 pages plus 1 supplemental section, 4 figures, 1 table
The invariant space of multi-Higgs doublet models
Creators: name: Bento, M. P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In a model with more than one scalar doublet, the parameter space encloses both physical and unphysical information. Invariant theory provides a detailed description of the counting and characterization of the physical parameter space. The Hilbert series for the 3HDM is computed for the first time using partition analysis, in particular Omega calculus, giving rise to the possibility of a full description of its physical parameters. A rigorous counting of the physical parameters is given for the full class of models with $N$ scalar doublets as well as a decomposition of the Lagrangian into irreducible representations of $\mathrm{SU}(N)$. For the first time we derive a basis-invariant technique for counting parameters in a Lagrangian with both basis-invariant redundancies and global symmetries.
description: Added references. Conjecture now a theorem. Added details
The Inductive Bias of Quantum Kernels
Creators: name: Kübler, Jonas M.
name: Buchholz, Simon
name: Schölkopf, Bernhard
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: It has been hypothesized that quantum computers may lend themselves well to applications in machine learning. In the present work, we analyze function classes defined via quantum kernels. Quantum computers offer the possibility to efficiently compute inner products of exponentially large density operators that are classically hard to compute. However, having an exponentially large feature space renders the problem of generalization hard. Furthermore, being able to evaluate inner products in high dimensional spaces efficiently by itself does not guarantee a quantum advantage, as already classically tractable kernels can correspond to high- or infinite-dimensional reproducing kernel Hilbert spaces (RKHS). We analyze the spectral properties of quantum kernels and find that we can expect an advantage if their RKHS is low dimensional and contains functions that are hard to compute classically. If the target function is known to lie in this class, this implies a quantum advantage, as the quantum computer can encode this inductive bias, whereas there is no classically efficient way to constrain the function class in the same way. However, we show that finding suitable quantum kernels is not easy because the kernel evaluation might require exponentially many measurements. In conclusion, our message is a somewhat sobering one: we conjecture that quantum machine learning models can offer speed-ups only if we manage to encode knowledge about the problem at hand into quantum circuits, while encoding the same bias into a classical model would be hard. These situations may plausibly occur when learning on data generated by a quantum process, however, they appear to be harder to come by for classical datasets.
description: Accepted version. 9 pages main paper. Total 25 pages
Supersolid-Superfluid phase separation in the extended Bose-Hubbard model
Creators: name: Kottmann, Korbinian
name: Haller, Andreas
name: Acín, Antonio
name: Astrakharchik, Grigory E.
name: Lewenstein, Maciej
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recent studies have suggested a new phase in the extended Bose-Hubbard model in one dimension at integer filling [1,2]. In this work, we show that this new phase is phase-separated into a supersolid and superfluid part, generated by mechanical instability. Numerical simulations are performed by means of the density matrix renormalization group algorithm in terms of matrix product states. In the phase-separated phase and the adjacent homogeneous superfluid and supersolid phases, we find peculiar spatial patterns in the entanglement spectrum and string-order correlation functions and show that they survive in the thermodynamic limit. In particular, we demonstrate that the elementary excitations of the homogeneous superfluid with enhanced periodic modulations are phonons, find the central charge to be $c=1$, and show that the velocity of sound, extracted from the intrinsic level splitting for finite systems, matches with the propagation velocity of local excitations in dynamical simulations. This suggests that the low-energy spectrum of the phase under investigation is effectively captured by a spinless Luttinger liquid, for which we find consistent results between the Luttinger parameter obtained from the linear dependence of the structure factor and the algebraic decay of the one-body density matrix.
description: [1] arXiv:2003.09905; [2] arXiv:1405.5382
Dephasing enhanced transport in boundary-driven quasiperiodic chains
Creators: name: Lacerda, Artur M.
name: Goold, John
name: Landi, Gabriel T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study dephasing-enhanced transport in boundary-driven quasi-periodic systems. Specifically we consider dephasing modelled by current preserving Lindblad dissipators acting on the non-interacting Aubry-André-Harper (AAH) and Fibonacci bulk systems. The former is known to undergo a critical localization transition with a suppression of ballistic transport above a critical value of the potential. At the critical point, the presence of non-ergodic extended states yields anomalous sub-diffusion. The Fibonacci model, on the other hand, yields anomalous transport with a continuously varying exponent depending on the potential strength. By computing the covariance matrix in the non-equilibrium steady-state, we show that sufficiently strong dephasing always renders the transport diffusive. The interplay between dephasing and quasi-periodicity gives rise to a maximum of the diffusion coefficient for finite dephasing, which suggests the combination of quasi-periodic geometries and dephasing can be used to control noise-enhanced transport.
Core Imaging Library -- Part I: a versatile Python framework for tomographic imaging
Creators: name: Jørgensen, Jakob S.
name: Ametova, Evelina
name: Burca, Genoveva
name: Fardell, Gemma
name: Papoutsellis, Evangelos
name: Pasca, Edoardo
name: Thielemans, Kris
name: Turner, Martin
name: Warr, Ryan
name: Lionheart, William R. B.
name: Withers, Philip J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Mathematical Software (cs.MS)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 65K10, 65R32, 65F10

description: We present the Core Imaging Library (CIL), an open-source Python framework for tomographic imaging with particular emphasis on reconstruction of challenging datasets. Conventional filtered back-projection reconstruction tends to be insufficient for highly noisy, incomplete, non-standard or multi-channel data arising for example in dynamic, spectral and in situ tomography. CIL provides an extensive modular optimisation framework for prototyping reconstruction methods including sparsity and total variation regularisation, as well as tools for loading, preprocessing and visualising tomographic data. The capabilities of CIL are demonstrated on a synchrotron example dataset and three challenging cases spanning golden-ratio neutron tomography, cone-beam X-ray laminography and positron emission tomography.
description: 22 pages, 11 figures
Radiative Kaon Decay in Chiral Perturbation Theory
Creators: name: Dubnickova, A. Z.
name: Dubnicka, S.
name: Goudzovski, E.
name: Pervushin, V. N.
name: Secansky, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the possibility of experimental investigation of new low-energy relations between the values of resonance masses in the meson form factors and the differential rate of radiative kaon decay $K^+\to π^+ e^+e^-(μ^+μ^- )$ at the current level of the experimental precision. A set of arguments is listed in favour of that these relations can be a consequence of weak static interactions in the Standard Model.
description: 15 pages, 5 figures. Results presented at the 5th NA48 Mini-Workshop on kaon physics. Third version: discussin of ChPT, analysis of experimental prospects, new title
Cuts for two-body decays at colliders
Creators: name: Salam, Gavin P.
name: Slade, Emma
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Fixed-order perturbative calculations of fiducial cross sections for two-body decay processes at colliders show disturbing sensitivity to unphysically low momentum scales and, in the case of $H\to γγ$ in gluon fusion, poor convergence. Such problems have their origins in an interplay between the behaviour of standard experimental cuts at small transverse momenta ($p_t$) and logarithmic perturbative contributions. We illustrate how this interplay leads to a factorially divergent structure in the perturbative series that sets in already from the first orders. We propose simple modifications of fiducial cuts to eliminate their key incriminating characteristic, a linear dependence of the acceptance on the Higgs or $Z$-boson $p_t$, replacing it with quadratic dependence. This brings major improvements in the behaviour of the perturbative expansion. More elaborate cuts can achieve an acceptance that is independent of the Higgs $p_t$ at low $p_t$, with a variety of consequent advantages.
description: 49 pages + appendices, 17 figures. Code that implements the cuts and Higgs defiducialisation at https://github.com/gavinsalam/two-body-cuts ; v2, as accepted by JHEP, adds two new appendices, on perturbative sensitivity to low scales and on defiducialisation, as well as various further clarifications and small fixes to some numerical values
Deformations of the restricted Melikian Lie algebra
Creators: name: Viviani, Filippo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17B50, 17B20, 17B56

description: We compute the infinitesimal deformations of the restricted Melikian Lie algebra in characteristic 5.
description: 18 page, expanded version, to appear on Comm. Alg
Microscopic theories for cubic and tetrahedral superconductors: application to PrOs_4Sb_{12}
Creators: name: Mukherjee, S.
name: Agterberg, D. F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We examine weak-coupling theory for unconventional superconducting states of cubic or tetrahedral symmetry for arbitrary order parameters and Fermi surfaces and identify the stable states in zero applied field. We further examine the possibility of having multiple superconducting transitions arising from the weak breaking of a higher symmetry group to cubic or tetrahedral symmetry. Specifically, we consider two higher symmetry groups. The first is a weak crystal field theory in which the spin-singlet Cooper pairs have an approximate spherical symmetry. The second is a weak spin orbit coupling theory for which spin-triplet Cooper pairs have a cubic orbital symmetry and an approximate spherical spin rotational symmetry. In hexagonal UPt_3, these theories easily give rise to multiple transitions. However, we find that for cubic materials, there is only one case in which two superconducting transitions occur within weak coupling theory. This sequence of transitions does not agree with the observed properties of PrOs_4Sb_{12}. Consequently, we find that to explain two transitions in PrOs_4Sb_{12} using approximate higher symmetry groups requires a strong coupling theory. In view of this, we finally consider a weak coupling theory for which two singlet representations have accidentally nearly degenerate transition temperatures (not due to any approximate symmetries). We provide an example of such a theory that agrees with the observed properties of PrOs_4Sb_{12}.
description: 11 pages,1 figure
Electronic Characterization of a Charge-Transfer Complex Monolayer on Graphene
Creators: name: Kumar, Avijit
name: Banerjee, Kaustuv
name: Ervasti, Mikko M.
name: Kezilebieke, Shawulienu
name: Dvorak, Marc
name: Rinke, Patrick
name: Harju, Ari
name: Liljeroth, Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Organic charge-transfer complexes (CTCs) formed by strong electron acceptor and strong electron donor molecules are known to exhibit exotic effects such as superconductivity and charge density waves. We present a low-temperature scanning tunneling microscopy and spectroscopy (LT-STM/STS) study of a two-dimensional (2D) monolayer CTC of tetrathiafulvalene (TTF) and fluorinated tetracyanoquinodimethane (F4TCNQ), self-assembled on the surface of oxygen-intercalated epitaxial graphene on Ir(111) (G/O/Ir(111)). We confirm the formation of the charge-transfer complex by dI/dV spectroscopy and direct imaging of the singly-occupied molecular orbitals. High-resolution spectroscopy reveals a gap at zero bias, suggesting the formation of a correlated ground state at low temperatures. These results point to the possibility to realize and study correlated ground states in charge-transfer complex monolayers on weakly interacting surfaces.
description: Manuscript and Supplementary Information, 36 pages
The Nature of Asymmetry in Fluid Criticality
Creators: name: Anisimov, Mikhail A.
name: Wang, Jingtao
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: By combining accurate liquid-vapor coexistence and heat-capacity data, we have unambiguously separated two non-analytical contributions of liquid-gas asymmetry in fluid criticality and proved the validity of "complete scaling" [Fisher et al., Phys. Rev. Lett. 85, 696 (2000); Phys. Rev. E, 67, 061506, (2003)]. We have also developed a method to obtain two scaling-field coefficients, responsible for the two sources of the asymmetry, from mean-field equations of state. Since the asymmetry effects are completely determined by Ising critical exponents, there is no need for a special renormalization-group theoretical treatment of asymmetric fluid criticality.
description: 4 pages, 3 figures
Η εικόνα του «ξένου» παιδιού (πρόσφυγα/ μετανάστη) στην ελληνική παιδική λογοτεχνία (2000 - 2016)
Creators: name: Ζτρίνη, Ελένη Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Εικόνα
«Ξένο» παιδί
Παιδική Ελληνική Λογοτεχνία
Image
“Foreign” child
Greek children’s literature

description: Η παρούσα εργασία πραγματεύεται την εικόνα του «ξένου» παιδιού (πρόσφυγα και μετανάστη) σε ελληνικά παιδικά βιβλία τα οποία έχουν εκδοθεί από το 2000 έως το 2016 και απευθύνονται στο αναγνωστικό κοινό του δημοτικού σχολείου. Για τη διερεύνηση του ερευνητικού υλικού, το οποίο αποτελείται από δεκαπέντε παιδικά βιβλία, χρησιμοποιούνται ως μεθοδολογικά εργαλεία τα αφηγηματικά στοιχεία της Νέας Κριτικής. Ειδικότερα, τα βιβλία μελετώνται ως προς το θέμα τους, την πλοκή, τους λογοτεχνικούς χαρακτήρες, τον αφηγητή και το σκηνικό, ώστε να σκιαγραφηθεί η εικόνα του «ξένου» παιδιού και η παιδική του ηλικία. Επιπρόσθετα, επιχειρείται να εντοπιστεί ο τρόπος κοινωνικοποίησης και ένταξης του μικρού μετανάστη και πρόσφυγα στη χώρα υποδοχής, την Ελλάδα, και να τον συσχετίσουμε με τα αντίστοιχα μοντέλα διαπολιτισμικής εκπαίδευσης.
description: This dissertation discusses the image of the "strange" child (refugee and immigrant) in the Greek children's books which have been published since 2000 until 2016 and are addressed to primary school readers. The investigation includes fifteen books. The narrative elements of the New Criticism are used as methodological tools. In particular, the books are examined in regard to their subject, the plot, the literary characters, the narrator, the settings so that, the image of the "strange" child and his/her childhood can be outlined. In addition, it is tried to detect the way the young refugee is socialized and integrated in the reception country, Greece, and relate it to the corresponding multicultural education.
Lepton Family Symmetry and the Neutrino Mixing Matrix
Creators: name: Ma, Ernest
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I review some of the recent progress (up to September 2005) in applying non-Abelian discrete symmetries to the family structure of leptons, with particular emphasis on the tribimaximal mixing ansatz of Harrison, Perkins, and Scott.
description: 12 pages, no figure, talk at Corfu2005
Placement of Small Vertical Axis Wind Turbine to Maximize Power Generation Influenced by Atchitectural and Geographic Interfaces in Urban Areas
Creators: name: Burtnick, Jason
name: Fairbanks, Ralph
name: Gross, Francis
name: Lin, Edward
name: McCrone, Bethany
name: Osmond, John
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: Wind power
Artificial winds
Gemstone Team AWE

description: Current methods for large-scale wind collection are unviable in urban areas. In order to investigate the feasibility of generating power from winds in these environments, we sought to optimize placements of small vertical-axis wind turbines in areas of artificially-generated winds. We explored both vehicular transportation and architecture as sources of artificial wind, using a combination of anemometer arrays, global positioning system (GPS), and weather report data. We determined that transportation-generated winds were not significant enough for turbine implementation. In addition, safety and administrative concerns restricted the implementation of said wind turbines along roadways for transportation-generated wind collection. Wind measurements from our architecture collection were applied in models that can help predict other similar areas with artificial wind, as well as the optimal placement of a wind turbine in those areas.
Who Ordered That? Unequal-Mass Binary Black Hole Mergers Have Larger Effective Spins
Creators: name: Callister, Thomas A.
name: Haster, Carl-Johan
name: Ng, Ken K. Y.
name: Vitale, Salvatore
name: Farr, Will M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Hierarchical analysis of the binary black hole (BBH) detections by the Advanced LIGO and Virgo detectors has offered an increasingly clear picture of their mass, spin, and redshift distributions. Fully understanding the formation and evolution of BBH mergers will require not just the characterization of these marginal distributions, though, but the discovery of any correlations that exist between the properties of BBHs. Here, we hierarchically analyze the ensemble of BBHs discovered by the LIGO and Virgo with a model that allows for intrinsic correlations between their mass ratios $q$ and effective inspiral spins $χ_\mathrm{eff}$. At $98.7\%$ credibility, we find that the mean of the $χ_\mathrm{eff}$ distribution varies as a function of $q$, such that more unequal-mass BBHs exhibit systematically larger $χ_\mathrm{eff}$. We find Bayesian odds ratio of $10.5$ in favor of a model that allows for such a correlation over one that does not. Finally, we use simulated signals to verify that our results are robust against degeneracies in the measurements of $q$ and $χ_\mathrm{eff}$ for individual events. While many proposed astrophysical formation channels predict some degree correlation between spins and mass ratio, these predicted correlations typically act in an opposite sense to the trend we observationally identify in the data.
description: Accepted in ApJL. New version includes edits made during production
Appropriateness of Largemouth Bass as a Model Species for Detection of Endocrine Dissruption
Creators: name: Kim, Christine
name: Leasca, Angela
name: Liu, Winston
name: Patel, Shivani
name: Poulsen, Laura
name: Shah, Shefali
name: Throwe, Taylor
name: Tripu, Renuka
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: Endocrine disruption
Intersex
Testicular oocytes
Vitellogenin
Largemouth bass
Poultry litter
Fathead minnow
Estradiol
Gemstone Team BASS

description: Intersex in largemouth bass (Micropterus salmoides) has been correlated with
regional anthropogenic activity, but has not been causally linked to environmental
factors. Four groups of hatchery-reared largemouth bass (LMB) and fathead minnows
(FHM) of varying ages and sex were exposed to aqueous poultry litter mixtures, 17β-
estradiol (E2), and controls. Water samples were analyzed for estrogens through liquid
chromatography tandem mass spectrometry and estrogenicity through the bioluminescent
yeast estrogen screen assay. Fish plasma was analyzed for the egg yolk protein
vitellogenin (Vtg) using enzyme–linked immunosorbent assay and gonad tissue was
examined histologically for enumeration of testicular oocytes (TO). Water chemistry
revealed typical E2 conversion to Estrone with subsequent decay over the exposure
periods. A modest prevalence of TO (9.4%) was detected with no apparent treatment
effect. While significant Vtg induction was found in E2 exposed FHM, minimal Vtg
induction was found in male LMB. Despite field findings of intersex in male LMB, this
species may be poorly suited for laboratory investigations into endocrine disruption.
Two-Photon 2s1s Transitions during Recombination of Hydrogen in the Universe
Creators: name: Kholupenko, E. E.
name: Ivanchik, A. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Based on the standard cosmological model, we calculate the correction to the rate of two-photon 2s1s transitions in the hydrogen atom under primordial hydrogen plasma recombination conditions that arises when the induced transitions under equilibrium background radiation with a blackbody spectrum and plasma recombination radiation are taken into account.
description: 20 pages, 9 figures
Singlino-dominated dark matter in $Z_3$-NMSSM
Creators: name: Zhou, Haijing
name: Cao, Junjie
name: Lian, Jingwei
name: Zhang, Di
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Singlino-dominated dark matter properties are investigated in the $Z_3$ Next-to-Minimal Supersymmetric Standard Model, producing superweak interactions with nucleons involved in dark matter direct detection experiments. Approximate analytical formulas describing the dark matter abundance and cross section in the scattering with nucleons are used to illustrate a dependence on theoretical parameters in neutralino and Higgs sectors. It is shown that the measured abundance requires a sizable singlet--doublet Higgs coupling parameter $λ$, while the experimental detection results prefer a small $λ$. The parameter space is then surveyed using a nest sampling technique guided by a likelihood function containing various observables in dark matter, Higgs, and B physics, such as the abundance and the scattering cross section. It is demonstrated that dark matter can achieve the correct abundance through $\tildeχ_1^0 \tildeχ_1^0 \to t \bar{t}$ or co-annihilation with higgsinos. The former process provides significantly larger Bayesian evidence than the latter, but this will be examined by the near-future PandaX-4T experiment. If the experiment shows no signs of dark matter, it will become highly disfavored. Furthermore, four cases are summarized to suppress dark matter scattering with nucleons, namely, a small $λ$ and three kinds of cancellation between different contributions.
description: 28 pages, 8 figures
Η πρακτική της καύσης των νεκρών στη Νεολιθική Μακεδονία: η μελέτη των οστών από τις ταφές-καύσεις Κλείτου και Τούμπας Κρεμαστής Κοιλάδας, ν. Κοζάνης
Creators: name: Κατσαβέλη, Αναστασία Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Καύσεις νεκρών
Οστεοαρχαιολογία
Νεολιθική Μακεδονία
Cremation
Osteoarchaeology
Neolithic Macedonia

description: Το θέμα της παρούσας μεταπτυχιακής εργασίας είναι η πρακτική της καύσης των νεκρών στην περιοχή της Μακεδονίας κατά τη Νεολιθική περίοδο (6700/6500 - 3300/3100). Σκοπό της μελέτης αποτελεί η ανάδειξη του πολυεπίπεδης αυτής πρακτικής, αφενός μέσω της βιβλιογραφικής έρευνας και αφετέρου μέσω της ανθρωπολογικής μελέτης των οστών από τις ταφές των καταλοίπων καύσης, από τις θέσεις Κλείτος και Τούμπα Κρεμαστής Κοιλάδας του νομού Κοζάνης. Αρχικά παρουσιάζεται η ταφική πρακτική σε συνάρτηση με τις ιδεολογικές και κοινωνικές προεκτάσεις της. Έπειτα δίνονται τα συναφή αρχαιολογικά δεδομένα από τη Μακεδονία και της υπό εξέταση θέσεις για τον συγκεκριμένο τρόπο ταφής. Ακολούθως παρουσιάζεται η μεθοδολογία της μελέτης, που έχει ως βασικούς άξονες τις αμιγώς ανθρωπολογικές παρατηρήσεις, τις θερμικές αλλοιώσεις και τις ταφονομικές παρατηρήσεις. Έπειτα, δίνονται αναλυτικά τα αποτελέσματα της μελέτης από τις δύο θέσεις. Τέλος, η σύνθεση των ανθρωπολογικών δεδομένων και η ένταξή τους στα αρχαιολογικά συγκείμενα οδηγούν στα σχετικά συμπεράσματα.
description: This thesis discusses the funerary practice of cremation in the Macedonian region during the Neolithic period (6700/6500 - 3300/3100).The aim of this study is to highlight this multi-layered practice through bibliographic research and mainly the anthropological study of the bones coming from the cremation burials from Kleitos and Toumba Kremastis Koiladas, in Kozani. Firstly, cremation is presented in connection with its ideological and social implications. Then the relevant archaeological data from Macedonia and the locations under consideration for the particular burial practice are given. The methodology of the study, which is based on anthropological observations, thermal alterations and taphonomic observations, is presented below. Subsequently, the results of the study from the bones of the two Neolithic sites are analyzed. Finally, the synthesis of anthropological data and their inclusion in the archaeological contexts lead to the relevant conclusions.
Book Review: Exemplary STEM Programs: Designs for Success. Yager, R.E. and Brunkhorst, H., eds. Arlington, Virginia USA: NSTA Press, (National Science Teachers Association) 2014. 461 pages
Creators: name: Stiles, John
Publisher: name: The Institute for the Promotion of Teaching Science and Technology (IPST), Ministry of Education
Year: 2015
Subjects: Book Review, K-12, STEM Education, STEM Program, Design

description: 2 (April-June), 1, K-12 STEM Education
Secondary Physics, Chemistry, and Biology (PCB) Teachers' Views about In-service Training Related to Curricular Change
Creators: name: Mercan, Fatih Caglayan
Publisher: name: The Institute for the Promotion of Teaching Science and Technology (IPST), Ministry of Education
Year: 2015
Subjects: K-12, STEM Education, Science Curricula, Physics, Chemistry, Biology, PCB, In-service Training

description: 2 (April-June), 1, K-12 STEM Education
The Problem about Technology in STEM Education: Some Findings from Action Research on the Professional Development & Integrated STEM Lessons in Informal Fields
Creators: name: Saito, Tomoki
name: Gunji, Yoshiyuki
name: Yoshisuke Kumano
Publisher: name: The Institute for the Promotion of Teaching Science and Technology (IPST), Ministry of Education
Year: 2015
Subjects: K-12, STEM Education, STEM integration, T-SM-E, participatory action research, professional development, STEM learning materials

description: 2 (April-June), 1, K-12 STEM Education
Learning electron densities in the condensed phase
Creators: name: Lewis, Alan M.
name: Grisafi, Andrea
name: Ceriotti, Michele
name: Rossi, Mariana
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We introduce a local machine-learning method for predicting the electron densities of periodic systems. The framework is based on a numerical, atom-centred auxiliary basis, which enables an accurate expansion of the all-electron density in a form suitable for learning isolated and periodic systems alike. We show that using this formulation the electron densities of metals, semiconductors and molecular crystals can all be accurately predicted using symmetry-adapted Gaussian process regression models, properly adjusted for the non-orthogonal nature of the basis. These predicted densities enable the efficient calculation of electronic properties which present errors on the order of tens of meV/atom when compared to ab initio density-functional calculations. We demonstrate the key power of this approach by using a model trained on ice unit cells containing only 4 water molecules to predict the electron densities of cells containing up to 512 molecules, and see no increase in the magnitude of the errors of derived electronic properties when increasing the system size. Indeed, we find that these extrapolated derived energies are more accurate than those predicted using a direct machine-learning model. Finally, on heterogeneous datasets SALTED can predict electron densities with errors below 4%.
description: 13 pages, 7 figures; accepted version, SI added
Probing the initial conditions of High Mass Star formation -- I. Deuteration and depletion in high mass pre/protocluster clumps
Creators: name: Pillai, T.
name: Wyrowski, F.
name: Hatchell, J.
name: Gibb, A. G.
name: Thompson, M. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: UltraCompact HII regions are signposts of high mass star formation. Since high-mass star formation occurs in clusters, one expects to find even earlier phases of massive star formation in the vicinity of UltraCompact HII regions. Here, we study the amount of deuteration and depletion toward pre/protocluster clumps found in a wide-field (10 X 10 arcmin) census of clouds in 32 massive star-forming regions that are known to harbour UCHII regions. We find that 65% of the observed sources have strong NH2D emission and more than 50% of the sources exhibit a high degree of deuteration, (0.1 < NH2D/NH3 < 0.7), 0.7 being the highest observed deuteration of NH3 reported to date. Our search for NHD2 in two sources did not result in a detection. The enhancement in deuteration coincides with moderate CO depletion onto dust grains. There is no evidence of a correlation between the two processes, though an underlying correlation cannot be ruled out as the depletion factor is very likely to be only a lower limit. In summary, we find CO depletion and high deuteration towards cold cores in massive star forming regions. Therefore, these are good candidates for sources at the early phases of massive star formation. While our sensitive upper limits on NHD2 do not prove the predictions of the gas-phase and grain chemistry models wrong, an enhancement of ~10^4 over the cosmic D/H ratio from NH2D warrants explanation.
description: 19 pages, 9 figures, Accepted for publication in Astronomy & Astrophysics
Η έμφυλη ετερότητα στα σχολικά βιβλία της γλώσσας: Μια σύγκριση του εν χρήσει και του προγενέστερου σχολικού εγχειριδίου της γλώσσας της ΣΤ΄ Δημοτικού
Creators: name: Μαντζιάρη, Λευκοθέα Λάζαρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Φύλο
Γλωσσικός σεξισμός
Σχολικά εγχειρίδια
Gender
Linguistic sexism
School textbooks

description: Η παρουσίαση των δύο φύλων στις διάφορες εκφάνσεις της κοινωνικής ζωής είναι ένα από τα θέματα, που έχουν εγείρει και συνεχίζουν να εγείρουν ένα μεγάλο ερευνητικό ενδιαφέρον. Λαμβάνοντας υπόψη την εν λόγω θεώρηση, μέσω της παρούσας έρευνας επιχειρείται η διερεύνηση και η σύγκριση των ιδεών σχετικά με το φύλο, όπως αυτές αποπνέονται από τα κείμενα των σχολικών εγχειριδίων του μαθήματος της «Γλώσσας» ΣΤ΄ Δημοτικού, τα οποία εισήχθησαν στην εκπαίδευση το 1982 και των αντίστοιχων σχολικών βιβλίων του 2006. Η παρούσα διπλωματική εργασία στοχεύει μέσω της βιβλιογραφικής ανασκόπησης να καταγράψει και να αναδείξει τις αντιλήψεις του φεμινισμού, να εξετάσει την ύπαρξη του σεξισμού στην κοινωνία, καθώς και τη σχέση της γλώσσας με το φύλο. Επιπρόσθετα, στόχος της εν λόγω εργασίας αποτελεί η εξέταση των σχολικών εγχειριδίων, στα οποία διαφαίνεται η επιρροή των έμφυλων κοινωνικών στερεοτύπων, προσφέροντας προτάσεις, που συμβάλουν στην εξάλειψη σεξιστικών ιδεολογιών. Η ερευνητική μέθοδος που χρησιμοποιήθηκε είναι η Ποσοτική Ανάλυση Περιεχομένου και η Ιδεολογικό-κριτική Ανάλυση, προκειμένου να υπάρξει σφαιρική ανάλυση και παρουσίαση του θέματος. Τα αποτελέσματα του ερευνώμενου υλικού κατέδειξαν την ύπαρξη μιας διευρυμένης ανδρικής παρουσίας στα σχολικά βιβλία και την καταγραφή στερεότυπων γυναικείων ρόλων, τόσο στα προγενέστερα, όσο και στα εν χρήσει σχολικά βιβλία.
description: The presentation of gender in various aspects of social life is one of the issues that have raised and continue to cause great research interest. Through this research, having as starting point this opinion, is attempted an investigation and comparison of the views as concerning the gender, as they are presented in the texts of school textbooks on Language teaching of Primary School, which are introduced into the education system in 1982 and the corresponding textbooks of 2006.The aim of this thesis is, through literature view, to record and highlight the approaches of feminism, examine the existence of sexism in society and the relationship between language and gender. In addition, the aim of this thesis is the examination of school textbooks, in which the influence of gender social stereotypes appears, offering suggestions, which contribute to the elimination of sexist ideologies. The used research method is a combination of Quantitive Content Analysis and a critical view of the points of school textbooks, in order to provide a comprehensive analysis and presentation of the subject. The results of the investigated material indicate the existence of extended male presence in school textbooks and stereotyped female roles in previous and current books.
Is Externally Corrected Coupled Cluster Always Better than the Underlying Truncated Configuration Interaction?
Creators: name: Magoulas, Ilias
name: Gururangan, Karthik
name: Piecuch, Piotr
name: Deustua, J. Emiliano
name: Shen, Jun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Nuclear Theory (nucl-th)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The short answer to the question in the title is 'no'. We identify classes of truncated configuration interaction (CI) wave functions for which the externally corrected coupled-cluster (ec-CC) approach using the three-body ($T_{3}$) and four-body ($T_{4}$) components of the cluster operator extracted from CI does not improve the results of the underlying CI calculations. Implications of our analysis, illustrated by numerical examples, for the ec-CC computations using truncated and selected CI methods are discussed. We also introduce a novel ec-CC approach using the $T_{3}$ and $T_{4}$ amplitudes obtained with the selected CI scheme abbreviated as CIPSI, correcting the resulting energies for the missing $T_{3}$ correlations not captured by CIPSI with the help of moment expansions similar to those employed in the completely renormalized CC methods.
description: 70 pages, 4 tables, 2 charts, and 1 figure. Supporting Information as an ancillary file. This article has been accepted for publication in the Journal of Chemical Theory and Computation