cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Compound A, a novel, potent and selective mGluR2 positive allosteric modulator: III. Effects in clinically relevant translational cognition models that could be used as biomarkers
Creators: name: Naimoli, Vanessa
name: Featherstone, Rob
name: Potestio, Lisa
name: Kosley, Ray
name: Varty, Geoff
name: Griebel, Guy
name: Black, Mark
Publisher: name: F1000Research
Year: 2015

description: COMPOUND A is a positive allosteric modulator of mGluR2 and has a procognitive profile.The present study investigated the effects of COMPOUND A in two clinically relevant cognition models, Latent Inhibition (LI) and Auditory Evoked Potentials (AEPs). LI and AEP are cross-species phenomena that are deficient in schizophrenia and that can be recorded in both rodents and human. Deficits in LI are believed to reflect aberrant switching/distractibility akin to schizophrenia. Deficiencies in AEPs have been regarded as manifestations of impaired sensory and attentional processing, leading to disturbed perception in patients with schizophrenia. In the LI model, amphetamine disrupted the learning behavior. COMPOUND A reversed this amphetamine deficit at doses of 1 and 10 mg/kg (po). A reversal of amphetamine disrupted LI was also seen with haloperidol (0.3 mg/kg ip). In the AEP model, amphetamine caused a disruption of paired auditory stimuli gating in a manner similar to that seen in schizophrenia. Whereas COMPOUND A did not affect baseline (vehicle control) gating (at 3 mg/kg po), COMPOUND A did reverse the amphetamine disrupted gating at doses of 0.3 and 3 mg/kg po.Reversal of amphetamine disrupted LI is thought to be an indicator of improved selective attention, and/or positive symptom efficacy. As our companion poster (Black et al) has indicated minimal effects of COMPOUND A in positive symptom models and robust improvements in cognition, we propose the effects of COMPOUND A here represent pro-cognitive activity. In agreement with this effect is the reversal of amphetamine-disrupted gating by COMPOUND A that could be indicative of sustained attention. As both techniques (LI and AEP) can be performed in a similar manner in humans, this opens up the ability to perform dose ranging studies for COMPOUND A in clinical trials; either by disrupting these phenomena with amphetamine in Phase I or Phase II studies in patients with natural deficits.
Simulations of Cold Electroweak Baryogenesis: Dependence on Higgs mass and strength of CP-violation
Creators: name: Tranberg, Anders
name: Smit, Jan
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Cold electroweak baryogenesis was proposed as a scenario to bypass generic problems of electroweak baryogenesis within the Standard Model. In this scenario, baryogenesis takes place during an electroweak symmetry breaking transition, which is also responsible for preheating after inflation. In the simplest modelling of the scenario, only two parameters remain undetermined: The Higgs mass and the strength of CP violation. Using full real-time lattice simulations, we compute the dependence of the asymmetry on these parameters.
description: 14 pages, 13 figures
Dynamic quarter-wave metasurface for efficient helicity inversion of polarization beyond the single-layer conversion limit
Creators: name: Kobachi, Mitsuki
name: Miyamaru, Fumiaki
name: Nakanishi, Toshihiro
name: Okimura, Kunio
name: Sanada, Atsushi
name: Nakata, Yosuke
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Terahertz chiral sensing and polarization-multiplexing communication demand subwavelength devices that dynamically invert polarization helicity. Metasurfaces can enhance anisotropy and fine tunability at subwavelength scales for this purpose. Although metasurfaces enabling deep modulation between orthogonal polarizations have been designed, they suffer from low conversion efficiencies. In this study, it is shown that the efficiency of conversion from linear to circular polarization by conventional single-layer transmissive metasurfaces cannot exceed a fundamental limit. A dynamic reflective metasurface free from this limitation is then proposed. The device includes multilayer structures working as a terahertz quarter-wave plate with switchable slow and fast axes. A phase transition of vanadium dioxide induces the necessary structural transformation of the metallic patterns. A practical fabrication method, based on the room-temperature bonding technique of sapphires, is presented. Dynamic helicity inversion is demonstrated at 0.90 THz, with a conversion efficiency of over 80 % that is beyond the fundamental limit of single-layer transmissive metasurfaces (65 %) and more than four times greater than that of previously reported devices.
description: 22 pages, 14 figures
Additional file 5 of Establishment of an ovarian cancer omentum metastasis-related prognostic model by integrated analysis of scRNA-seq and bulk RNA-seq
Creators: name: Zhang, Dongni
name: Lu, Wenping
name: Cui, Shasha
name: Mei, Heting
name: Wu, Xiaoqing
name: Zhuo, Zhili
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5.
Three loop anomalous dimensions of higher moments of the non-singlet twist-2 Wilson and transversity operators in the MSbar and RI' schemes
Creators: name: Gracey, J. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We compute the anomalous dimension of the third and fourth moments of the flavour non-singlet twist-2 Wilson and transversity operators at three loops in both the MSbar and RI' schemes. To assist with the extraction of estimates of matrix elements computed using lattice regularization, the finite parts of the Green's function where the operator is inserted in a quark 2-point function are also provided at three loops in both schemes.
description: 26 latex pages
Suppression of singularities of solutions of the Euler-Poisson system with density-dependent damping
Creators: name: Rozanova, Olga S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35F55 35Q60 35B44 35B20 35L80

description: We find a sharp condition on the density-dependent coefficient of damping of a one-dimensional repulsive Euler-Poisson system, which makes it possible to suppress the formation of singularities in the solution of the Cauchy problem with arbitrary smooth data. In the context of plasma physics, this means the possibility of suppressing the breakdown of arbitrary oscillations of cold plasma.
description: 14 pages, 4 figures
Additional file 6 of Establishment of an ovarian cancer omentum metastasis-related prognostic model by integrated analysis of scRNA-seq and bulk RNA-seq
Creators: name: Zhang, Dongni
name: Lu, Wenping
name: Cui, Shasha
name: Mei, Heting
name: Wu, Xiaoqing
name: Zhuo, Zhili
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 6.
Σχολιασμένη μετάφραση από την αγγλική στην ελληνική (Quah: Translation and Technology) και από την ιταλική στην ελληνική (Chiari: Introduzione alla Linguistica Computazionale)
Creators: name: Βατάλη, Ευδοξία Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Τεχνική ορολογία
Υπολογιστική Γλωσσολογία
Μηχανική Μετάφραση
Technical terminology
Computational Linguistics
Machine Translation

description: Η παρούσα διπλωματική εργασία είναι μία σχολιασμένη μετάφραση που αποτελείται από τις ελληνικές μεταφράσεις, το γλωσσάρι όρων, την τεκμηρίωση και το σχολιασμό ορολογίας. Πρόκειται για τεχνική ορολογία από τον τομέα της Υπολογιστικής Γλωσσολογίας, της Τεχνολογίας και της Μετάφρασης. Τα κείμενα που μεταφράζονται είναι αποσπάσματα των βιβλίων: Chiew Kin Quah, Translation and Technology και Isabella Chiari, Introduzione alla linguistica computazionale. Οι γλώσσες-πηγή είναι η αγγλική και η ιταλική και η γλώσσα-στόχος η ελληνική. Στο τέλος επιχειρείται ανάλυση των μεταφραστικών δυσκολιών και δικαιολόγηση των τελικών επιλογών μέσα από συγκεκριμένες στρατηγικές και τεχνικές.
description: This thesis is an annotated translation consisting of the Greek translations, a terminology glossary and the terminology documentation and annotation. It includes technical terminology, specialized terms of the fields: Computational Linguistics, Technology and Translation. The texts translated are abstracts of two books: Chiew Kin Quah, Translation and Technology and Isabella Chiari, Introduzione alla linguistica computazionale. The source languages are English and Italian while the target language is Greek. Furthermore, a thorough analysis of the translation difficulties as well as justification of the final translation decisions take place.
Generalized asymptotic formulae for estimating statistical significance in high energy physics analyses
Creators: name: Basso, M. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Within the framework of likelihood-based statistical tests for high energy physics measurements, we derive generalized expressions for estimating the statistical significance of discovery using the asymptotic approximations of Wilks and Wald for a variety of measurement models. These models include arbitrary numbers of signal regions, control regions, and Gaussian constraints. We extend our expressions to use the representative or "Asimov" dataset proposed by Cowan et al. such that they are made data-free. While many of the generalized expressions are complicated and often involve solving systems of coupled, multivariate equations, we show these expressions reduce to closed-form results under simplifying assumptions. We also validate the predicted significance using toy-based data in select cases.
description: V1: 27 pages, 5 figures; V2: 33 pages, 9 figures, fixed typos/language, corrected/validated Sec. 2.3, expanded on Sec. 2.4, added summary table
Twisting of 2D kagomé sheets in layered intermetallics
Creators: name: Sinha, Mekhola
name: Vivanco, Hector K.
name: Wan, Cheng
name: Siegler, Maxime A.
name: Stewart, Veronica J.
name: Pogue, Elizabeth A.
name: Pressley, Lucas A.
name: Berry, Tanya
name: Wang, Ziqian
name: Johnson, Isaac
name: Chen, Mingwei
name: Tran, Thao T.
name: Phelan, W. Adam
name: McQueen, Tyrel M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Chemical bonding in 2D layered materials and van der Waals solids is central to understanding and harnessing their unique electronic, magnetic, optical, thermal and superconducting properties. Here we report the discovery of spontaneous, bidirectional, bilayer twisting (twist angle ~ 4.5°) in the metallic kagomé MgCo6Ge6 at T = 100(2) K via X-ray diffraction measure-ments, enabled by the preparation of single crystals by the Laser Bridgman method. Despite the appearance of static twisting on cooling from T ~ 300 K to 100 K, no evidence for a phase transition was found in physical properties measurements. Combined with the presence of an Einstein phonon mode contribution in the specific heat, this implies that the twisting exists at all temperatures but is thermally fluctuating at room temperature. Crystal Orbital Hamilton Population analysis demonstrates that the cooperative twisting between layers stabilizes the Co-kagomé network when coupled to strongly bonded and rigid (Ge2) dimers that connect adjacent layers. Further modelling of the displacive disorder in the crystal structure shows the presence of second, Mg-deficient, stacking sequence. This alternative stacking sequence also exhibits inter-layer twisting, but with a different pattern, consistent with the change in electron count due to removal of Mg. Magnetization, resistivity, and low-temperature specific heat measurements are all consistent with a Pauli paramagnetic, strongly correlated metal. Our results provide crucial insight into how chemical concepts lead to interesting electronic structures and behaviors in layered materials.
Orthogonal representations of twisted forms of SL2
Creators: name: Garibaldi, Skip
Publisher: name: arXiv
Year: 2007
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 11E76; 20G15; 11E04; 20G15

description: For every absolutely irreducible orthogonal representation of a twisted form of SL2 over a field of characteristic zero, we compute the "unique" symmetric bilinear form that is invariant under the group action. We also prove the analogous result for Weyl modules in prime characteristic (including characteristic 2) and an isomorphism between two symmetric bilinear forms given by binomial coefficients.
description: Supporting contextual material is substantially revised since v2; proofs of the main results remain the same. For possible newer versions, see http://www.mathcs.emory.edu/~skip/preprints.html
The privileges of patriotism: national identity, nationalism and feminism in the Englishwoman’s review of social and industrial questions, 1880-1889
Creators: name: Perry, Lara Ann
Publisher: name: University of British Columbia
Year: 2009

description: Historians have recently begun to recognise the importance of gender and other ideologies in the formation of national identities. The “masculine” nature of national identity in nineteenth century England obstructs attempts by historians to describe a female nationalism; however, women did experience themselves as nationals despite the apparent conflict between national identity and “femininity.” The Englishwoman’s Review of Social and Industrial Questions was a feminist periodical published by women who were articulate both about nationality and gender. Here, the 1 880s issues of the Review are interrogated for their understandings first of “Englishness”; then of “womanhood”; and then of their description of “Englishwomen.” The women represented in the Review had a powerful national identity which was constructed by a knitting together of their understandings of Englishness and womanhood. Women’s activities were viewed in terms of their national significance, and concepts of nation and nationality were articulated in a language of “feminine” interests. These understandings constituted significant departures from “dominant” discourses of femininity and the state. At the same time, the discourse of Englishwomanhood produced in the Review was conservative, inasmuch as it reproduced most of the “dominant” notions of Englishness current among the urban middle class. These liberal values had a considerable impact on the feminism recorded in the Review; this kind of feminism was (and is) profoundly shaped by its alliance to “Englishness.”
Η ποινική αντιμετώπιση της ενδοοικογενειακής βίας: Ο Ν. 3500/2006
Creators: name: Σαρίκου, Ευγενία Λαμπρινού
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Ενδοοικογενειακή βία
Ποινική Διαμεσολάβηση
Βία κατά γυναικών
Domestic violence
Penal Mediation
Violence against women

description: Η βία στην οικογένεια δεν θεωρείται ιδιωτικό ζήτημα αλλά μορφή κοινωνικής παθογένειας που παραβιάζει ανθρώπινα δικαιώματα. Ως εκ τούτου, τόσο οι εγχώριοι όσο και οι διεθνείς φορείς έχουν λάβει μέτρα για την νομοθετική αντιμετώπιση του παραπάνω προβλήματος. Σκοπός του Ν. 3500/2006 είναι να αντιμετωπισθεί το φαινόμενο της ενδοοικογενειακής βίας και να προστατευθούν όχι μόνο οι γυναίκες, αλλά και ένας ευρύτερος κύκλος ευάλωτων ατόμων, όπως είναι τα παιδιά, οι ηλικιωμένοι, οι ανήμποροι κ.ά. Η παρούσα παρουσιάζει με κριτική σκοπιά το Ν. 3500/2006 και τις ειδικές και αυστηρές ρυθμίσεις του, με τις οποίες επιχειρείται η αντιμετώπιση των περιπτώσεων βίας μέσα στην οικογένεια, οι οποίες προσβάλλουν τη σωματική ακεραιότητα και υγεία των μελών, την προσωπική τους ελευθερία, την σεξουαλική τους αυτοδιάθεση και την γενετήσια αξιοπρέπειά τους. Επιπρόσθετα, σημαντικό κομμάτι της παρούσας αφορά στο θεσμό της ποινικής διαμεσολάβησης και της αποτελεσματικότητάς του, ενώ παράλληλα επιχειρείται η παρουσίαση της όλης διαδικασίας και των προβληματικών της σημείων.
description: Domestic violence is not a private case, but rather a serious social pathogenesis that violates individual freedoms. Both Greek and international community have taken many initiatives to confront the above problem legally. The Law 3500/2006 aims to deal with a series of punishable acts against family members and to protect not only women, but any vulnerable individual, such as children, the elderly, the incapacitated etc. The aim of this thesis was to present and criticize the L. 3500/2006 and its special and strict provisions which have been enacted to deal with behaviours manifested within the family which insult the health and physical integrity of its members, their personal freedom, as well as their sexual freedom and dignity. Furthermore, a very important part of the thesis concerned the institution of penal mediation and its effectiveness, while was made an attempt to present the whole procedure and its problematic points.
Questionnaire sur les pratiques de consommation de médicaments et crèmes solaires sur le Bassin d'Arcachon
Creators: name: Lyser, Sandrine
name: Cazals, Clarisse
name: Ferron, Antoine
Publisher: name: Zenodo
Year: 2016
Subjects: questionnaire
enquête
pratiques
médicaments
micropolluant
survey
practices
micropollutant

description: Questionnaire d'enquête portant sur (i) les pratiques de consommation de médicaments et produits solaires et (ii) le devenir des produits périmés ou non utilisés. Destiné aux résidents et non-résidents des 10 communes littorales du Bassin d'Arcachon, ce questionnaire anonyme a été (auto-)administré par courrier et internet, au cours de l'été 2016. Il a été conçu pour le projet de recherche REMPAR (Réseau Micropolluants du Bassin d’Arcachon) qui s'inscrit dans le cadre de l'appel à projets « Innovations et changements de pratiques : lutte contre les micropolluants des eaux urbaines ». English description Survey questionnaire on medication and sun products consumption practices and the fate of expired or unused products. This anonymous questionnaire for residents and non-residents of the 10 coastal municipalities of the Arcachon Bay, was self-administered by mail and online, during the summer 2016.

 It was designed for the research project REMPAR (Arcachon Bay's monitoring and expertise network on micropollutants) that focuses on the issue of micropollutants in urban waters.
Ανάλυση οπτικών κυματοδηγών με χρήση της Μεθόδου Πεπερασμένων Στοιχείων (Finite Element Method)
Creators: name: Κιχίδης, Αναστάσιος Παύλου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Μέθοδος Πεπερασμένων Στοιχείων
Μέθοδος Galerkin
Χαρακτηριστικά διάδοσης οπτικού κύματος
Finite Element Method
Galerkin Method
Propagation characteristics of optical wave

description: Στην παρούσα διπλωματική εργασία μελετήθηκε η αριθμητική μέθοδος με την ονομασία «Finite Element Method - FEM» ή αλλιώς «Μέθοδος των πεπερασμένων στοιχείων», και το πώς αυτή εφαρμόζεται στα οπτικά συστήματα, και πιο συγκεκριμένα στους οπτικούς κυματοδηγούς. Η συγκεκριμένη τεχνική προέρχεται από τον χώρο της μηχανικής και μπορεί να δώσει λύσεις σε προβλήματα που απασχολούν τον υπολογισμό των χαρακτηριστικών διάδοσης σε οπτικούς κυματοδηγούς. Πιο συγκεκριμένα, ο στόχος ήταν ο υπολογισμός του πλήθους των τρόπων διάδοσης του κύματος σε έναν κυματοδηγό και των αντίστοιχων σταθερών διάδοσης (b). Παράλληλα, θα παρουσιαστούν αναλυτικές μέθοδοι υπολογισμού των χαρακτηριστικών διάδοσης των κυματοδηγών τόσο σε διδιάστους κυματοδηγούς (2D) αλλά και τριδιάστατους (3D). Οι αναλυτικές μέθοδοι που θα παρουσιαστούν είναι η μέθοδος του Marcatili και η Effective Index. Εν συνεχεία θα τονιστεί ο λόγος της αναγκαιότητας της χρήσης της μεθόδου FEM καθώς και που πλεονεκτεί σε σχέση με τις αναλυτικές μεθόδους. Ακόμη, θα περιγραφεί η υλοποίηση της εφαρμογής που προγραμματίστηκε και η οποία υπολογίζει τα χαρακτηριστικά διάδοσης συγκεκριμένων κυματοδηγών, καθώς και τα πειράματα και τα αποτελέσματα που προέκυψαν από την εφαρμογή της μεθόδου.
description: In this thesis the numerical method called «Finite Element Method - FEM», has been studied and specifically how it applies to the optical waveguides. This technique is derived from the fields of engineering and can provide solutions to problems that concern the calculation of diffusion characteristics in optical waveguides. More specifically, the target was the calculation of the number of propagation modes in a waveguide and the corresponding propagation constants Analytical calculation methods of the characteristics of the waveguides at two dimensional waveguides (2D) and three dimensional (3D) will be presented as well. The analytical methods that will be presented are the method of Marcatili and the Effective Index. Furthermore, it is going to be described the necessity of the FEM method and at what points this method outperforms the analytical methods. Finally the implementation of the application which calculates the propagation characteristics of specific waveguides, and the experiments and the results obtained by the application of the method is presented.
The Sizes of Optimal q-Ary Codes of Weight Three and Distance Four: A Complete Solution
Creators: name: Chee, Yeow Meng
name: Dau, Son Hoang
name: Ling, Alan C. H.
name: Ling, San
Publisher: name: arXiv
Year: 2008
Subjects: subject: Information Theory (cs.IT)
subject: Discrete Mathematics (cs.DM)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: This correspondence introduces two new constructive techniques to complete the determination of the sizes of optimal q-ary codes of constant weight three and distance four.
description: 5 pages
Analysis of Consumer Behavior Towards Branded Apparel
Creators: name: Aadhya Sawhney, Yash Asrani, Dolly D Mehta
Publisher: name: Zenodo
Year: 2024

description: The purpose of this research paper is to deliberate upon the buying behavior of consumers towards branded apparel in India and to compare branded apparel with non-branded apparel based on the demographic profile of consumers. This study is descriptive in nature evaluating whether the consumer behavior towards brands is positive or negative. The research involves gathering primary data and secondary data as well. A questionnaire was formulated using different kinds of scales such as the Likert scale, multiple grids, multiple choice questions, etc., and was circulated among consumers of varying ages, profession, gender, income brackets. The results were analysed based on the demographic profile which is one of the objectives of this research paper. Fashion is a fast moving industry with trends changing every second. The audience now-a-days are more brand conscious and more brand aware. There are more than 100 brands in the market and hence this industry has become a competitive one. As a result, the marketer must have a thorough understanding of the customer, including what they anticipate from a brand, the elements that motivate them to buy a specific brand, their entire outlay, shopping frequency etc to attain a competitive edge. The information obtained from the analysis will allow the marketer to get insights and information about the key issues in the market. It provides a depth and breadth of knowledge as well as vital data that cannot be found anywhere else. This crucial information can assist businesses in better understanding client’s wants and delivering the best to them. Given the consumer's various and distinct personality qualities in various locations, the marketer should be able to recognise these distinctions and their impact on consumer purchasing behaviour.
Analogue of Roberts theorem for ternary forms
Creators: name: Bedratyuk, Leonid
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 13N15;13A50;13F20

description: Analogues of invariant theory's well-known Roberts theorem are proved for ternary forms. We established that covariants, contravariants and mixed concomitants of a ternary form are uniquely determined by their lead coefficients.
description: Classical Invariant theory. 16 pages in Ukrainian, English Abstract
Deutschlehrer und die Neuen Medien im Deutschunterricht: Einstellungen, Anwendungsschwierigkeiten und Fortbildungsbedürfnisse
Creators: name: Τσαπάρα, Ξανθή Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Νέες Τεχνολογίες
Αντιλήψεις
Ανάγκες επιμόρφωσης
New Technologies
Attitudes
Training needs

description: Η παρούσα διπλωματική εργασία πραγματεύεται το ζήτημα της χρήσης των Νέων Τεχνολογιών στο μάθημα των γερμανικών στο δημόσιο σχολείο στην Ελλάδα. Συγκεκριμένα, ερευνώνται οι αντιλήψεις των καθηγητών γερμανικών ως προς τις Νέες Τεχνολογίες, οι δυσκολίες εφαρμογής των τελευταίων στο μάθημα των γερμανικών και οι ανάγκες επιμόρφωσης των καθηγητών γερμανικών σχετικά με τις Νέες Τεχνολογίες. Η έρευνα διεξήχθη μέσω ηλεκτρονικού ερωτηματολογίου, διαθέσιμου στο διαδίκτυο. Το δείγμα της έρευνας αποτέλεσαν καθηγητές γερμανικών της δημόσιας εκπαίδευσης του ελληνικού χώρου. Αρχικά, σε ένα θεωρητικό πλαίσιο διευκρινίζεται ο όρος «Νέες Τεχνολογίες» καθώς και οι δεξιότητες που σχετίζονται με αυτόν. Στη συνέχεια γίνεται επεξήγηση των όρων «Blended Learning» και «E-Learning» και παρουσιάζονται τα εργαλεία που απαρτίζουν τις Νέες Τεχνολογίες (εργαλεία Web 2.0 και ο διαδραστικός πίνακας). Επίσης, γίνεται μία ιστορική ανασκόπηση όσον αφορά τη χρήση των Νέων Τεχνολογιών στην ελληνική εκπαίδευση και εκθέτονται τα αποτελέσματα παρόμοιων ερευνών στον ελληνικό εκπαιδευτικό χώρο. Στο πρακτικό μέρος περιγράφονται τα στάδια της έρευνας και γίνεται ανάλυση των αποτελεσμάτων, τα οποία προέκυψαν με την εφαρμογή του στατιστικού πακέτου SPSS. Ας σημειωθεί ότι κατά τη διάρκεια της έκθεσης των αποτελεσμάτων γίνεται συσχετισμός και με τα αποτελέσματα προηγούμενων ερευνών που σχετίζονται με το ερευνητικό θέμα.
description: The current study deals with the New Technologies during the German lesson at the public schools in Greece. Specifically, the research focuses on 1) the attitudes of the teachers towards the New Technologies, 2) the difficulty in using the New Technologies in the German lesson as well as 3) the training which is required as far as the New Technologies is concerned. The research was conducted trough an electronic questionnaire, which was available via internet. The research sample consisted of 60 teachers of German language who are occupied in public schools in Greece. Initially the term “New Technologies” was clarified based on a theoretical frame as well as the skills which are related to it. Then the terms “Blended Learning” and “E-Learning” were explained and the tools which compose the New Technologies were presented (the Web 2.0 tools and the interactive board). Furthermore, a historical review related to the New Technologies in the Greek education took place and the results of similar researches in the Greek education are displayed. As far as the practical part is concerned, the research stages were described and an analysis of the results is made, which were come up based on the statistical package SPSS. I have to point out that throughout the results display there is a connection with results of the previous researches which are related with the searching subject.
Congruence between parent satisfaction with nursing care of their children and nurses’ perceptions of parent satisfaction
Creators: name: Thornton, Nancy G.
Publisher: name: University of British Columbia
Year: 2009

description: The purpose of this descriptive study was to determine the degree of congruence between parents' satisfaction with nursing care and nurses' perceptions of parent satisfaction. The conceptual framework that guided this research was the enabling and empowering model of helping relationships by Dunst, Trivette, Davis, and Cornwell (1988). A convenience sample of twenty nurse-parent pairs was recruited from a 22-bed unit in a tertiary care pediatric hospital. Data were collected by means of a 25- item self-administered satisfaction with nursing care instrument and socio-demographic tools. Data were analyzed using descriptive and parametric statistics. The study results revealed statistically significant differences between parent and nurse perceptions. As a group, nurses estimated parents to be less satisfied with nursing care than parents themselves reported. However, when a pair-by-pair analysis was conducted, it showed a lack of congruence between parents' and nurses' perceptions in both directions. The conclusions support the need for nurses to explicitly ask the consumers of their services whether or not their expectations of nursing care are being met. Unless nurses ensure that the care they provide is consistent with what consumers want, consumers are unlikely to be satisfied. Recommendations are made for nursing practice, education, administration, and research.
Simultaneous X-ray and optical observations of S5 0716+714 after the outburst of March 2004
Creators: name: Foschini, L.
name: Tagliaferri, G.
name: Pian, E.
name: Ghisellini, G.
name: Treves, A.
name: Maraschi, L.
name: Tavecchio, F.
name: Di Cocco, G.
name: Rosen, S. R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: At the end of March 2004, the blazar S5 0716+714 underwent an optical outburst that prompted for quasi-simultaneous target-of-opportunity observations with the INTEGRAL and XMM-Newton satellites. In this paper, we report the results of the XMM-Newton and INTEGRAL OMC data analysis. The X-ray spectrum is well-represented by a concave broken power-law model, with the break at about 2 keV. In the framework of the synchrotron self-Compton model, the softer part of the spectrum, which is described by a power law of index $α\simeq 1.8$ ($f_ν\propto ν^{-α}$), is probably due to synchrotron emission, while the harder part of the spectrum, which has $α\simeq 1$, is due to inverse Compton emission. The blazar shows the long and short-term variability typical of low-frequency peaked BL Lac (LBL): the former is manifested by a gradual decrease in the optical flux from the peak as observed by ground telescopes at the end of March 2004, while the latter is characterized by soft X-ray and optical flares on time scales from a few thousand seconds to few hours. We can follow spectral variations on sub-hour time scales and study their correlation with the flux variability. We find evidence that the peak energy of the time-resolved spectra is increasing with flux. The modeling of the spectral energy distribution compared with archival observations suggests that the long-term variability (from outburst to quiescence or viceversa) could be due to a change in the injected power, while the short-term variability (flares) could be explained with changes in the slope of the distribution of the electrons.
description: 8 pages, 6 figures. Accepted for publication on A&A Main Journal. Revision of the English grammar
The Three-Nucleon System at Next-To-Next-To-Leading Order
Creators: name: Platter, L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We calculate higher order corrections for the three-nucleon system up to next-to-next-to-leading within an effective field theory with contact interactions alone. We employ a subtraction formalism previously developed and for which it has been shown that no new three-body force counterterm is needed for complete renormalization up to this order. We give results for the neutron-deuteron phaseshifts and the triton binding energy. Our results are in very good agreement with experimental results and calculations using realistic nucleon-nucleon potentials.
description: 4 pages, 2 eps figures, revised version to appear in PRC
Phenomenological dynamics of loop quantum cosmology in Kantowski-Sachs spacetime
Creators: name: Chiou, Dah-Wei
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The fundamental theory and the semiclassical description of loop quantum cosmology (LQC) have been studied in the Friedmann-Robertson-Walker and Bianchi I models. As an extension to include both anisotropy and intrinsic curvature, this paper investigates the cosmological model of Kantowski-Sachs spacetime with a free massless scalar field at the level of phenomenological dynamics with the LQC discreteness corrections. The LQC corrections are implemented in two different improved quantization schemes. In both schemes, the big bang and big crunch singularities of the classical solution are resolved and replaced by the big bounces when the area or volume scale factor approaches the critical values in the Planck regime measured by the reference of the scalar field momentum. Symmetries of scaling are also noted and suggest that the fundamental spatial scale (area gap) may give rise to a temporal scale. The bouncing scenarios are in an analogous fashion of the Bianchi I model, naturally extending the observations obtained previously.
description: 36 pages, 4 figures, 1 table; more errors and typos corrected; version to appear in PRD
Lattice Study of Low-lying Nonet Scalar Mesons in Quenched Approximation
Creators: name: Wada, Hiroaki
name: Kunihiro, Teiji
name: Muroya, Shin
name: Nakamura, Atsushi
name: Nonaka, Chiho
name: Sekiguchi, Motoo
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Using lattice QCD simulation in the quenched approximation, we study the $κ$ meson, which is ^3P_0 in the quark model, and compare experimental and other lattice data. The $κ$ is the lowest scalar meson with strangeness and constitutes the scalar nonet. The obtained mass is much higher than the recent experimental value, and therefore the $κ(800)$ is difficult to consider as a simple two-body constituent-quark structure, and may have another unconventional structure.
description: 11pages, 5figures
Supplementary Methods and Results from The effect of environmental stress on ageing in a termite species with low social complexity
Creators: name: Rau, Veronika
name: Korb, Judith
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology

description: contains Supplementary Methods (Protocol of RNA isolation, Protocol of DNA digestion); Supplementary Results (PCA analyses of DEGs, Fitness results, DEGs in IIS/TOR pathways, WGCNA for queens, WGCNA for worker, Analyses for both castes together, table S4)
WMS-Einführung vor dem Hintergrund der Nachhaltigkeit
Creators: name: Barlang, Maximilian
name: :Unav
Publisher: name: Fraunhofer-Gesellschaft
Year: 2022
Subjects: WMS
warehouse management
warehouse management system
Nachhaltigkeit
sustainability
Ökologie
Ökonomie
Soziales
CSRD
GILA
emissions
RPS
Ressourcenplanung

description: Im Vortrag wird behandelt, wie die Einführung oder die Ablösung eines bestehenden WMS zur Nachhaltigkeit in der Intralogistik beitragen kann.
Self - consistent treatment of dynamics and chemistry in the winds from carbon-rich AGB stars. I. Tests of the equilibrium and kinetic chemical codes
Creators: name: Pułecka, M.
name: Schmidt, M. R.
name: Shematovich, V. I.
name: Szczerba, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The main aim of the paper was performing test of our (chemical and kinetic) codes, which will be used during self-consistent modelling of dynamics and chemistry in the winds from C-rich AGB stars. We use the thermodynamical equilibrium code to test the different databases of dissociation constants. We also calculate the equilibrium content of the gas using the kinetic code, which includes the chemical network of neutral--neutral reactions studied by Willacy & Cherchneff (1998). The influence of reaction rates updated using the UMIST database for Astrochemistry 2005 (UDFA05), was tested. The local thermodynamical equilibrium calculations have shown that the NIST database reproduces fairly well equilibrium concentrations of Willacy & Cherchneff (1998), while agreement in case of Tsuji (1973) dissociation constants is much worse. The most important finding is that the steady state solution obtained with the kinetic code for reaction network of Willacy & Cherchneff (1998) is different from the thermodynamical equilibrium solution. In particular, CN and C2, which are important opacity sources are underabundant relative to hermodynamical equilibrium, while O-bearing molecules (like SiO, H2O, and OH) are overabundant. After updating the reaction rates by data from the UDFA05 database consistency in O-bearing species becomes much better, however the disagreement in C-bearing species is still present.
description: 10 pages, 7 figures, accepted by A&A
MontePython: Implementing Quantum Monte Carlo using Python
Creators: name: Nilsen, J. K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present a cross-language C++/Python program for simulations of quantum mechanical systems with the use of Quantum Monte Carlo (QMC) methods. We describe a system for which to apply QMC, the algorithms of variational Monte Carlo and diffusion Monte Carlo and we describe how to implement theses methods in pure C++ and C++/Python. Furthermore we check the efficiency of the implementations in serial and parallel cases to show that the overhead using Python can be negligible.
description: pdfeTeX, 17 pages, 10 Postscript figures, submitted to Comp. Phys. Comm. 20060901
The Solar Heavy Element Abundances: II. Constraints from Stellar Atmospheres
Creators: name: Pinsonneault, M. H.
name: Delahaye, Franck
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Estimates of the bulk metal abundance of the Sun derived from the latest generation of model atmospheres are significantly lower than the earlier standard values. In Paper I we demonstrated that a low solar metallicity is inconsistent with helioseismology if the quoted errors in the atmospheres models (of order 0.05 dex) are correct. In this paper we undertake a critical analysis of the solar metallicity and its uncertainty from a model atmospheres perspective, focusing on CNO. We argue that the non-LTE corrections for abundances derived from atomic features are overestimated in the recent abundance studies, while systematic errors in the absolute abundances are underestimated. If we adopt the internal consistency between different indicators as a measure of goodness of fit, we obtain intermediate abundances [C/H] = 8.44 +/- 0.06, [N/H] = 7.96 +/- 0.10 and [O/H] = 8.75 +/- 0.08. The errors are too large to conclude that there is a solar abundance problem, and permit both the high and low scales. However, the center-to-limb continuum flux variations predicted in the simulations appear to be inconsistent with solar data, which would favor the traditional thermal structure and lead to high CNO abundances of (8.52, 7.96, 8.80) close to the seismic scale. We argue that further empirical tests of non-LTE corrections and the thermal structure are required for precise absolute abundances. The implications for beryllium depletion and possible sources of error in the numerical simulations are discussed.
description: 36 pages, 4 figures, submitted ApJ
The inner flow geometry in MAXI J1820+070 during hard and hard-intermediate states
Creators: name: De Marco, B.
name: Zdziarski, A. A.
name: Ponti, G.
name: Migliori, G.
name: Belloni, T. M.
name: Otero, A. Segovia
name: Dziełak, M.
name: Lai, E. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: [Abridged] Context: We present a systematic X-ray spectral-timing study of the recently discovered, exceptionally bright black hole X-ray binary system MAXI J1820+070. Our analysis focuses on the first part of the 2018 outburst, covering the rise throughout the hard state, the bright hard and hard-intermediate states, and the transition to the soft-intermediate state. Aims: We address the issue of constraining the geometry of the innermost accretion flow and its evolution throughout an outburst. Methods: We employed two independent X-ray spectral-timing methods applied to the NICER data of MAXI J1820+070. We first identified and tracked the evolution of a characteristic frequency of soft X-ray reverberation lags. Then, we studied the spectral evolution of the quasi-thermal component responsible for the observed thermal reverberation lags. Results: The frequency of thermal reverberation lags steadily increases throughout most of the outburst, implying that the relative distance between the X-ray source and the disc decreases as the source softens. However, near transition this evolution breaks, showing a sudden increase (decrease) of lag amplitude (frequency). The temperature of the quasi-thermal component in covariance spectra consistently increases throughout all the analysed observations. Conclusions: The behaviour of thermal reverberation lags near transition might be related to the relativistic plasma ejections detected at radio wavelengths, suggesting a causal connection between the two phenomena. Throughout most of the hard and hard-intermediate states the disc is consistent with being truncated (with an inner radius $R_{\rm in}>\sim 10 R_{\rm g}$), reaching close to the innermost stable circular orbit only near transition.
description: Accepted for publication in Astronomy & Astrophysics, matches published version
Magnetic-field effects on transport in carbon nanotube junctions
Creators: name: Rosales, L.
name: Pacheco, M.
name: Barticevic, Z.
name: Rocha, C. G.
name: Latge, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Here we address a theoretical study on the behaviour of electronic states of heterojunctions and quantum dots based on carbon nanotubes under magnetic fields. Emphasis is put on the analysis of the local density of states, the conductance, and on the characteristic curves of current versus voltage. The heterostructures are modeled by joining zigzag tubes through single pentagon-heptagon pair defects, and described within a simple tight binding calculation. The conductance is calculated using the Landauer formula in the Green functions formalism. The used theoretical approach incorporates the atomic details of the topological defects by performing an energy relaxation via Monte Carlo calculation. The effect of a magnetic field on the conductance gap of the system is investigated and compared to those of isolated constituent tubes. It is found that the conductance gap of the studied CNHs exhibits oscillations as a function of the magnetic flux. However, unlike the pristine tubes case, they are not Aharonov-Bohm periodic oscillations.
Estimate of BR(B -> X_s gamma) at O(alpha_s^2)
Creators: name: Misiak, M.
name: Asatrian, H. M.
name: Bieri, K.
name: Czakon, M.
name: Czarnecki, A.
name: Ewerth, T.
name: Ferroglia, A.
name: Gambino, P.
name: Gorbahn, M.
name: Greub, C.
name: Haisch, U.
name: Hovhannisyan, A.
name: Hurth, T.
name: Mitov, A.
name: Poghosyan, V.
name: Slusarczyk, M.
name: Steinhauser, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Combining our results for various O(alpha_s^2) corrections to the weak radiative B-meson decay, we are able to present the first estimate of the branching ratio at the next-to-next-to-leading order in QCD. We find BR(B -> X_s gamma) = (3.15 +_ 0.23) x 10^-4 for E_gamma > 1.6 GeV in the B-meson rest frame. The four types of uncertainties: non-perturbative (5%), parametric (3%), higher-order (3%) and m_c-interpolation ambiguity (3%) have been added in quadrature to obtain the total error.
description: 4 pages, 4 figures. Version accepted by the PRL. Words disallowed by the journal removed from the title. References updated and a note added
ISIDORE 2030 : adapter les IA aux besoins de la recherche de documents et de données en SHS
Creators: name: POUYLLAU, Stéphane
Publisher: name: HN LAB
Year: 2024
Subjects: IA
Search Engine
Academic Search Engine
Discovery Tool

description: Présentation du programme de recherche ISIDORE 2030 mené par le HN Lab de l'infrastructure de recherche Huma-Num. ISIDORE 2030 est un programme qui vise à explorer l'usage des IA (de traitement, génératives, etc.) dans l'optique de renouveller les fonctionnalités de l'assistant de recherche ISIDORE. Il s'agit d'explorer les enjeux, les limites, les possibilités (y compris industrielles) de l'IA pour un instrument tel qu'ISIDORE.
Αλγεβρικά Συστήματα και η Εικασία του Goldbach
Creators: name: Στεφάνου, Αναστάσιος Σπυρίδωνος
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Πολυωνυμικά Συστήματα
Βάσεις Groebner
Εικασία του Goldbach
Polynomial Systems
Groebner bases
Goldbach's Conjecture

description: Σκοπός αυτής της Διπλωματικής Εργασίας είναι η μελέτη ορισμένων πολυωνυμικών συστημάτων και η αλληλεπίδραση τους με την Εικασία του Goldbach. Παραθέτουμε κατ’ αρχήν μερικά ιστορικά στοιχεία σχετικά με την Εικασία του Goldbach. Στη συνέχεια παραθέτουμε στοιχεία από την θεωρία των βάσεων Groebner και την θεωρία της μια προς μια αντιστοιχίας μεταξύ των ριζικών ιδεωδών του πολυωνυμικού δακτυλίου και των αφφινικών πολλαπλοτήτων, όπου Κ είναι αλγεβρικά κλειστό σώμα χαρακτηριστικής 0. Τέλος παρουσιάζουμε ένα αριθμητικό σύστημα το οποίο ονομάζουμε c-αριθμητική, για έναν άρτιο φυσικό αριθμό c και αποδεικνύουμε ότι αν ορισμένα πολυωνυμικά συστήματα με n μεταβλητές δεν έχουν λύση στο σύνολο των θετικών πρώτων αριθμών τότε η Εικασία του Goldbach είναι αληθής. Επίσης αποδεικνύουμε ότι αν αυτά τα συστήματα είναι 2 ή 3 μεταβλητών και με όρους συνολικού βαθμού <3, τότε δεν έχουν λύση στο σύνολο των θετικών πρώτων αριθμών.
description: The aim of this thesis is the study of certain polynomial systems and their interaction with the Goldbach's Conjecture. Firstly, we give some historical elements relevant to the Goldbach's Conjecture. We give some elements from the theory of Groebner bases and their elimination property on polynomial systems of equations. Then we give the one to one correspondence between radical ideals of the polynomial ring and affine varieties. Finally, we consider an arithmetical system which we call c-arithmetic, where c is a fixed even natural number and we prove that if certain polynomial systems with n variables have no solution in the set of positive prime numbers, then the Goldbach’s conjecture is true. Finally we prove that these systems with 2 or 3 variables and terms of total degree <3 have indeed no solution in the set of positive prime numbers.