cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Presentation
Creators: name: Cigales, Marcelo
Publisher: name: Zenodo
Year: 2024

description: The Sociological Teaching journal launches its first edition of 2024 with two articles, a book review, and an interview, discussing various aspects of Sociology teaching in Brazil. This edition provides an important opportunity to understand the country’s developments in this field, especially after the enactment of Law No. 11,684 of 2008, which made Sociology a mandatory subject in high school education.
Ποιοτική μελέτη των αντιλήψεων πρώην χρηστών εξαρτησιογόνων ουσιών για τη σχέση μεταξύ χρήσης ναρκωτικών ουσιών και ντόπινγκ: Εμπειρική μελέτη σε πρώην αθλητές
Creators: name: Παπαϊωάννου, Ολγα Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: αναβολικά στεροειδή, ντόπινγκ, τοξικοεξάρτηση,
αναβολικά στεροειδή και κατάχρηση ναρκωτικών ουσιών,
παρενέργειες
anabolic steroids, doping, toxic addiction,
anabolic steroids and drug abuse,
side effects

description: Η χρήση παράνομων ουσιών στον αθλητισμό, με έμφαση στις ναρκωτικές ουσίες και τα αναβολικά, είναι παρούσα σε σημαντικό αριθμό αθλημάτων και σε διάφορα επίπεδα ανταγωνισμού. Τα κίνητρα, οι λόγοι και οι συνέπειες της χρήσης τέτοιων ουσιών δεν έχουν διερευνηθεί επαρκώς. Στην παρούσα εργασία μελετήθηκαν οι αντιλήψεις πρώην αθλητών, χρηστών ντόπινγκ και εξαρτησιογόνων ουσιών, προκειμένου να αποκαλυφθεί η σχέση μεταξύ χρήσης ναρκωτικών ουσιών και ντόπινγκ. Το δείγμα της μελέτης αποτέλεσαν 15 άτομα, τα οποία αποδέχθηκαν να συμμετάσχουν σε ημιδομημένες συνεντεύξεις, τα ερωτήματα των οποίων προέκυψαν από την ανασκόπηση της διεθνούς βιβλιογραφίας. Τα ευρήματα υποδεικνύουν ότι η χρήση ΑΑΣ (Ανδρογόνων Αναβολικών Στεροειδών) αποτελεί μια πιθανή πύλη για τη μετάβαση στη χρήση ναρκωτικών ουσιών. Παράλληλα, η εξέταση του κοινωνικοοικονομικού υποβάθρου των πρώην αθλητών ανέδειξε τις παραμέτρους του οικογενειακού περιβάλλοντος και τις διαταραγμένες οικογενειακές σχέσεις. Η αποτίμηση των ευρημάτων επιτρέπει τη διατύπωση προτάσεων σχετικά με τα δομικά και επιστημονικά τεκμηριωμένα μέτρα που πρέπει να ληφθούν, ενώ αναδεικνύουν το ρόλο της εκπαίδευσης και των ενδεικνυόμενων φαρμακολογικών παρεμβάσεων
description: Abuse of dangerous substances in sport, with emphasis on drugs and anabolics, in modern times is present in all sports and at most levels of competition. Athletic life can lead to drug abuse for a variety of reasons and motives. Former athletes opinions, users of doping and addictive drugs, were studied in order to investigate in depth the relationship between drug use and doping. The sample of the study consisted of 15 people who accepted to participate in semi-structured interviews, whose questions were raised after the review of the international literature on doping in sport. Findings suggest that AAS use is a potential gateway to drug use, while the study of the socio-economic background of former athletes has demonstrated problematic family environments and troubled family relationships. The abuse of drugs and anabolics in athletes should be addressed through preventive measures, education and, where appropriate, pharmacological interventions
A neural network classifier for electron identification on the DAMPE experiment
Creators: name: Droz, David
name: Tykhonov, Andrii
name: Wu, Xin
name: Alemanno, Francesca
name: Ambrosi, Giovanni
name: Catanzani, Enrico
name: Di Santo, Margherita
name: Kyratzis, Dimitrios
name: Zimmer, Stephan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The Dark Matter Particle Explorer (DAMPE) is a space-borne particle detector and cosmic ray observatory in operation since 2015, designed to probe electrons and gamma rays from a few GeV to 10 TeV energy, as well as cosmic protons and nuclei up to 100 TeV. Among the main scientific objectives is the precise measurement of the cosmic electron+positron flux, which due to the very large proton background in orbit requires a powerful particle identification method. In the past decade, the field of machine learning has provided us the needed tools. This paper presents a neural network based approach to cosmic electron identification and proton rejection and showcases its performances based on simulated Monte Carlo data. The neural network reaches significantly lower background than the classical, cut-based method for the same detection efficiency, especially at highest energies. A good matching between simulations and real data completes the picture.
description: 19 pages, 12 figures, accepted for publication in Journal of Instrumentation (JINST)
Searching for the Bottom Counterparts of X(3872) and Y(4260) via $π^+π^-Υ$
Creators: name: Hou, Wei-Shu
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The X(3872) and Y(4260), among a host of charmonium-like mesons, have rather unusual properties: the former has very small total width, the latter has large rate into $π^+π^-J/ψ$ channel. It would not be easy to settle between the many suggested explanations for their composition. We point out that discovering the bottom counterparts should shed much light on the issue. The narrow state can be searched for at the Tevatron via $p\bar p \to π^+π^-Υ+ X$, but the LHC should be much more promising. The state with large overlap with $Υ$ can be searched for at B factories via radiative return $e^+e^- \to γ_{\rm ISR} + π^+π^-Υ$ on $Υ(5S)$, or by $e^+e^- \to π^+π^-Υ$ direct scan.
description: 4 pages, no figures, version to appear in PRD; expanded, including comments on LHCb
Precise characterization of the prior predictive distribution of deep ReLU networks
Creators: name: Noci, Lorenzo
name: Bachmann, Gregor
name: Roth, Kevin
name: Nowozin, Sebastian
name: Hofmann, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Recent works on Bayesian neural networks (BNNs) have highlighted the need to better understand the implications of using Gaussian priors in combination with the compositional structure of the network architecture. Similar in spirit to the kind of analysis that has been developed to devise better initialization schemes for neural networks (cf. He- or Xavier initialization), we derive a precise characterization of the prior predictive distribution of finite-width ReLU networks with Gaussian weights. While theoretical results have been obtained for their heavy-tailedness, the full characterization of the prior predictive distribution (i.e. its density, CDF and moments), remained unknown prior to this work. Our analysis, based on the Meijer-G function, allows us to quantify the influence of architectural choices such as the width or depth of the network on the resulting shape of the prior predictive distribution. We also formally connect our results to previous work in the infinite width setting, demonstrating that the moments of the distribution converge to those of a normal log-normal mixture in the infinite depth limit. Finally, our results provide valuable guidance on prior design: for instance, controlling the predictive variance with depth- and width-informed priors on the weights of the network.
SkyMapper and the Southern Sky Survey
Creators: name: Keller, S. C.
name: Schmidt, B. P.
name: Bessell, M. S.
name: Conroy, P. G.
name: Francis, P.
name: Granlund, A.
name: Kowald, E.
name: Oates, A. P.
name: Martin-Jones, T.
name: Preston, T.
name: Tisserand, P.
name: Vaccarella, A.
name: Waterson, M. F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper presents the design and science goals for the SkyMapper telescope. SkyMapper is a 1.3m telescope featuring a 5.7 square degree field-of-view Cassegrain imager commissioned for the Australian National University's Research School of Astronomy and Astrophysics. It is located at Siding Spring Observatory, Coonabarabran, NSW, Australia and will see first light in late 2007. The imager possesses 16kx16k 0.5 arcsec pixels. The primary scientific goal of the facility is to perform the Southern Sky Survey, a six colour and multi-epoch (4 hour, 1 day, 1 week, 1 month, 1 year sampling) photometric survey of the southerly 2pi steradians to g~23 mag. The survey will provide photometry to better than 3% global accuracy and astrometry to better than 50 mas. Data will be supplied to the community as part of the Virtual Observatory effort. The survey will take five years to complete.
Identification of an ultrafast internal conversion pathway of pyrazine by time-resolved vacuum ultraviolet photoelectron spectrum simulations
Creators: name: Kanno, Manabu
name: Mignolet, Benoît
name: Remacle, Françoise
name: Kono, Hirohiko
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The internal conversion from the optically bright S$_2$ ($^1$B$_{2\mathrm{u}}$, $ππ^*$) state to the dark S$_1$ ($^1$B$_{3\mathrm{u}}$, n$π^*$) state in pyrazine is a standard benchmark for experimental and theoretical studies on ultrafast radiationless decay. Since 2008 a few theoretical groups have suggested significant contributions of other dark states S$_3$ ($^1$A$_\mathrm{u}$, n$π^*$) and S$_4$ ($^1$B$_{2\mathrm{g}}$, n$π^*$) to the decay of S$_2$. We have previously reported the results of nuclear wave packet simulations [Phys. Chem. Chem. Phys. 17, 2012 (2015)] and photoelectron spectrum calculations [Chem. Phys. 515, 704 (2018)] that support the conventional two-state picture. In this article, the two different approaches, i.e., wave packet simulation and photoelectron spectrum calculation are combined: We computed the time-resolved vacuum ultraviolet photoelectron spectrum and photoelectron angular distribution for the ionization of the wave packet transferred from S$_2$ to S$_1$. The present results reproduce almost all the characteristic features of the corresponding experimental time-resolved spectrum [T. Horio et al., J. Chem. Phys. 145, 044306 (2016)] such as a rapid change from a three-band to two-band structure. This further supports the existence and character of the widely accepted pathway (S$_2$ $\rightarrow$ S$_1$) of ultrafast internal conversion in pyrazine.
description: 30 pages, 8 figures. This article has been submitted to The Journal of Chemical Physics
A Monte Carlo study of the triangular lattice gas with the first- and the second-neighbor exclusions
Creators: name: Zhang, Wei
name: Deng, Youjin
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We formulate a Swendsen-Wang-like version of the geometric cluster algorithm. As an application,we study the hard-core lattice gas on the triangular lattice with the first- and the second-neighbor exclusions. The data are analyzed by finite-size scaling, but the possible existence of logarithmic corrections is not considered due to the limited data. We determine the critical chemical potential as $μ_c=1.75682 (2)$ and the critical particle density as $ρ_c=0.180(4)$. The thermal and magnetic exponents $y_t=1.51(1) \approx 3/2$ and $y_h=1.8748 (8) \approx 15/8$, estimated from Binder ratio $Q$ and susceptibility $χ$, strongly support the general belief that the model is in the 4-state Potts universality class. On the other hand, the analyses of energy-like quantities yield the thermal exponent $y_t$ ranging from $1.440(5)$ to $1.470(5)$. These values differ significantly from the expected value 3/2, and thus imply the existence of logarithmic corrections.
description: 4 figures 2 tables
Σχεδιασμός και κατασκευή λογισμικού για τον υπολογισμό του διηλεκτρικού φάσματος συστημάτων βιομορίων με χρήση προσομοιώσεων μοριακής δυναμικής
Creators: name: Στάμκος, Ιωάννης Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018

description: Η χρήση των μικροκυμάτων σε κάθε πτυχή της καθημερινής ζωής καθιστά απαραίτητη την μελέτη των επιπτώσεων τους στα βιολογικά υλικά. Οι Προσομοιώσεις Μοριακής Δυναμικής σε συνδυασμό με την θεωρία Γραμμικής Απόκρισης έχουν αποδειχθεί ένα αξιόπιστο θεωρητικό εργαλείο για τον υπολογισμό των διηλεκτρικών ιδιοτήτων βιολογικών συστημάτων.Σε αυτήν την διπλωματική αναπτύχθηκε ένα λογισμικό ακολουθώντας τα αρχιτεκτονικά μοτίβα MVC και microservices με σκοπό την απλοποίηση και επιτάχυνση της παραπάνω διαδικασίας. Συνδυάζει τις γλώσσες προγραμματισμού C++, Tcl και GNU plot. Η ορθή λειτουργία του λογισμικού επαληθεύτηκε με την μελέτη υδατικού διαλύματος λυσοζύμης (Clys = 128.33 mg/mL) στους 300K. Επιπλέον μελετήθηκε υδατικό διάλυμα εκτοΐνης (Cect = 198.87 mg/mL) στους 300K.
description: The use of microwaves technology in everyday activities renders the study of effects of microwaves on biological matter necessary. Molecular dynamics simulations in conjuction with Linear Response Theory have been previously shown to be a reliable theoretical tool for the calculation of the dielectric properties of biomolecular systems. In this work a software has been developed using a combination of MVC and microservices architectures in order to simplify and speed up the above task. It combines the C++, Tcl and GNU plot languages. The software has been tested in the case of a lysozyme solution (Clys = 128.33 mg/mL) at 300K. In addition it has been also applied in the case of an ectoine solution (Cect = 198.87 mg/mL) at 300K.
Disentangling the Roles of Curation, Data-Augmentation and the Prior in the Cold Posterior Effect
Creators: name: Noci, Lorenzo
name: Roth, Kevin
name: Bachmann, Gregor
name: Nowozin, Sebastian
name: Hofmann, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: The "cold posterior effect" (CPE) in Bayesian deep learning describes the uncomforting observation that the predictive performance of Bayesian neural networks can be significantly improved if the Bayes posterior is artificially sharpened using a temperature parameter T<1. The CPE is problematic in theory and practice and since the effect was identified many researchers have proposed hypotheses to explain the phenomenon. However, despite this intensive research effort the effect remains poorly understood. In this work we provide novel and nuanced evidence relevant to existing explanations for the cold posterior effect, disentangling three hypotheses: 1. The dataset curation hypothesis of Aitchison (2020): we show empirically that the CPE does not arise in a real curated data set but can be produced in a controlled experiment with varying curation strength. 2. The data augmentation hypothesis of Izmailov et al. (2021) and Fortuin et al. (2021): we show empirically that data augmentation is sufficient but not necessary for the CPE to be present. 3. The bad prior hypothesis of Wenzel et al. (2020): we use a simple experiment evaluating the relative importance of the prior and the likelihood, strongly linking the CPE to the prior. Our results demonstrate how the CPE can arise in isolation from synthetic curation, data augmentation, and bad priors. Cold posteriors observed "in the wild" are therefore unlikely to arise from a single simple cause; as a result, we do not expect a simple "fix" for cold posteriors.
MPEC 2024-T90 : 2024 TO1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 TO1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Linking pleasure with health: the development of health resorts as venues for health promotion
Creators: name: Andestad, Gwenyth Gail
Publisher: name: University of British Columbia
Year: 2009

description: Health benefits associated with vacation activities are increasingly important factors in the North American leisure market. Health promotion is often a goal of holiday activity in general, but some people want specific health benefits from their vacation. The health spa segment of the leisure industry has a long history of directly meeting peopl&s desires for health promoting or health restoring vacations. Industry analysts have recently noted the emergence of a growing and revitalized health resort industry that is accommodating a new consumer demand for multidimensional approaches to weliness. Expanded and enhanced development of the health resort business in Canada has the potential to provide social as well as economic benefit to Canadians from domestic and international markets. At this time a number of demographic, environmental, and cultural factors are supportive of a renewed health resort industry. This paper analyzes the health resort industry in Canada from a planning perspective and is structured in three parts: a review of the history and modern trends in the health resort industry, a survey of twenty key informants to document opportunities and constraints in the development of health resorts today, and an analysis of government policy and industry actions relevant to the growth of a network of health resorts in British Columbia.
The Nylon Scintillator Containment Vessels for the Borexino Solar Neutrino Experiment
Creators: name: Benziger, J.
name: Cadonati, L.
name: Calaprice, F.
name: de Haas, E.
name: Fernholz, R.
name: Ford, R.
name: Galbiati, C.
name: Goretti, A.
name: Harding, E.
name: Ianni, An.
name: Kidner, S.
name: Leung, M.
name: Loeser, F.
name: McCarty, K.
name: Nelson, A.
name: Parsells, R.
name: Pocar, A.
name: Shutt, T.
name: Sonnenschein, A.
name: Vogelaar, R. B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Borexino is a solar neutrino experiment designed to observe the 0.86 MeV Be-7 neutrinos emitted in the pp cycle of the sun. Neutrinos will be detected by their elastic scattering on electrons in 100 tons of liquid scintillator. The neutrino event rate in the scintillator is expected to be low (~0.35 events per day per ton), and the signals will be at energies below 1.5 MeV, where background from natural radioactivity is prominent. Scintillation light produced by the recoil electrons is observed by an array of 2240 photomultiplier tubes. Because of the intrinsic radioactive contaminants in these PMTs, the liquid scintillator is shielded from them by a thick barrier of buffer fluid. A spherical vessel made of thin nylon film contains the scintillator, separating it from the surrounding buffer. The buffer region itself is divided into two concentric shells by a second nylon vessel in order to prevent inward diffusion of radon atoms. The radioactive background requirements for Borexino are challenging to meet, especially for the scintillator and these nylon vessels. Besides meeting requirements for low radioactivity, the nylon vessels must also satisfy requirements for mechanical, optical, and chemical properties. The present paper describes the research and development, construction, and installation of the nylon vessels for the Borexino experiment.
Single-shot electron imaging of dopant-induced nanoplasmas
Creators: name: Medina, C.
name: Schomas, D.
name: Rendler, N.
name: Debatin, M.
name: Uhl, D.
name: Ngai, A.
name: Ltaief, Ben
name: Dumergue, M.
name: Filus, Z.
name: Farkas, B.
name: Flender, R.
name: Haizer, L.
name: Kiss, B.
name: Kurucz, M.
name: Major, B.
name: Toth, S.
name: Stienkemeier, F.
name: Moshammer, R.
name: Pfeifer, T.
name: Krishnan, S. R.
name: Heidenreich, A.
name: Mudrich, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: We present single-shot electron velocity-map images of nanoplasmas generated from doped helium nanodroplets and neon clusters by intense near-infrared and mid-infrared laser pulses. We report a large variety of signal types, most crucially depending on the cluster size. The common feature is a two-component distribution for each single-cluster event: A bright inner part with nearly circular shape corresponding to electron energies up to a few eV, surrounded by an extended background of more energetic electrons. The total counts and energy of the electrons in the inner part are strongly correlated and follow a simple power-law dependence. Deviations from the circular shape of the inner electrons observed for neon clusters and large helium nanodroplets indicate non-spherical shapes of the neutral clusters. The dependence of the measured electron energies on the extraction voltage of the spectrometer indicates that the evolution of the nanoplasma is significantly affected by the presence of an external electric field. This conjecture is confirmed by molecular dynamics simulations, which reproduce the salient features of the experimental electron spectra.
description: 12 pages,12 figures, submitted to New Journal of Physics: Article reference: NJP-113197
Benjamin Johnson, Patrick Kavanagh, and Kevin Mattson, editors, Steal This University: The Rise of the Corporate University and the Academic Labor Movement. New York: Routledge, 2003.
Creators: name: Burkett, Paul
Publisher: name: Cultural Logic: A Journal of Marxist Theory & Practice
Year: 2019

description: Cultural Logic: A Journal of Marxist Theory & Practice, Vol 11 (2004)
Local syzygies of multiplier ideals
Creators: name: Lazarsfeld, Robert
name: Lee, Kyungyong
Publisher: name: arXiv
Year: 2006
Subjects: subject: Algebraic Geometry (math.AG)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics

description: In recent years, multiplier ideals have found many applications in local and global algebraic geometry. Because of their importance, there has been some interest in the question of which ideals on a smooth complex variety can be realized as multiplier ideals. Other than integral closure no local obstructions have been known up to now, and in dimension two it was established by Favre-Jonsson and Lipman-Watanabe that any integrally closed ideal is locally a multiplier ideal. We prove the somewhat unexpected result that multiplier ideals in fact satisfy some rather strong algebraic properties involving higher syzygies. It follows that in dimensions three and higher, multiplier ideals are very special among all integrally closed ideals.
description: 8 pages
Αξιολόγηση των εσωτερικών υδάτων της Βόρειας και Κεντρικής Ελλάδας, σύμφωνα με τα προστατευόμενα είδη της ιχθυπανίδας τους και τα περιβαλλοντικά τους χαρακτηριστικά
Creators: name: Κιουρτίδου, Δήμητρα-Γεωργία
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Εσωτερικά ύδατα
Βόρεια και Κεντρική Ελλάδα
Προστατευόμενα είδη ιχθυοπανίδας και περιβαλλοντικά χαρακτηριστικά
Inland waters
Northern and Central Greece
Protected species of fishfauna and environmental characteristics

description: Σκοπός της παρούσας διατριβής είναι να αξιολογήσει τα εσωτερικά νερά της Βόρεια και Κεντρικής Ελλάδας (Θράκη, Μακεδονία και Θεσσαλία), σύμφωνα με τα προστατευόμενα είδη της ιχθυοπανίδας τους και τα περιβαλλοντικά τους χαρακτηριστικά. Αρχικά έγινε η καταγραφή της ιχθυοπανίδας των ποταμών και των λιμνών που ανήκουν στην περιοχή μελέτης. Στην συνέχεια έγινε επεξεργασία των ειδών σύμφωνα με την κατάσταση κινδύνου τους αλλά και τις νομοθεσίες από τις οποίες προστατεύονται. Επιπλέον έγινε στατιστική ανάλυση με το στατιστικό πακέτο IBM SPSS Statistics 22, όπου χρησιμοποιήθηκε ανάλυση σε συστάδες (cluster). Έτσι, τα ποτάμια ταξινομήθηκαν σε ομάδες σύμφωνα με την ιχθυοπανίδα τους, τον αριθμό των ειδών που ανήκουν στις κατηγορίες κινδύνου (CR: Κρισίμως Kινδυνεύοντα, EN: Kινδυνεύοντα, VU: Tρωτά) και το μήκος των ποταμών σε km. Οι λίμνες αντίστοιχα ταξινομήθηκαν σε ομάδες σύμφωνα με την ιχθυοπανίδα τους, τον αριθμό των ειδών που ανήκουν στις κατηγορίες κινδύνου (CR: Κρισίμως Kινδυνεύοντα, EN: Kινδυνεύοντα, VU: Tρωτά), την έκταση τους σε km2 και το μέγιστο βάθος τους σε m. Από την ανάλυση σε ομάδες των ποταμών προέκυψαν 3 ομάδες ποταμών, η καθεμία από τις οποίες περιλαμβάνει ποτάμια με κοινά χαρακτηριστικά. Αντίστοιχα, για τις λίμνες προέκυψαν 4 ομάδες με βάση τα χαρακτηριστικά τους.
description: The purpose of this thesis is to evaluate the inland waters of Northern and Central Greece (Thrace, Macedonia and Thessaly) according to the protected species of their fish fauna and their environmental characteristics. Initially, we recorded the fish fauna of the rivers and lakes belonging to the study area. The species was then processed according to their risk status and the laws from which they are protected. In addition, statistical analysis was performed with the IBM SPSS Statistics 22 statistical packet, where cluster analysis was used. Thus, the river was classified into groups according to their fish fauna, the number of species belonging to the risk categories (CR: Critical Endangered, EN: Endangered, VU: Vulnerable) and river lengths in km. The lakes were grouped according to their fish fauna, the number of species belonging to the risk categories (CR: Critical Endangered, EN: Endangered, VU: Vulnerable), the area in km2 and their maximum depth in m. River group analysis revealed three river groups, each of which includes rivers with common features. Accordingly, for the lakes 4 groups were formed based on their characteristics.
Unusual direction-dependent magnetic orbital moment obtained from X-ray magnetic circular dichroism in a multiferroic oxide system
Creators: name: Preziosi, D.
name: Homkar, S.
name: Lefevre, C.
name: Salluzzo, M.
name: Viart, N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The electric-field control of $d$-electron magnetism in multiferroic transition metal oxides is attracting widespread interest for the underlying fundamental physics and for next generation spintronic devices. Here, we report an extensive study of the $3d$ magnetism in magnetoelectric Ga$_{0.6}$Fe$_{1.4}$O$_3$ (GFO) epitaxial films by polarization dependent x-ray absorption spectroscopy. We found a non-zero integral of the x-ray magnetic circular dichroism, with a sign depending upon the relative orientation between the external magnetic field and the crystallographic axes. %By reliably enlarging the limit of the spin and orbital sum rules, which usually holds for materials where the magnetic ions exhibit a unique crystal field symmetry This finding translates in a sign-reversal between the average Fe magnetic orbital and spin moments. Large Fe-displacements, among some of the octahedral sites, lower the symmetry of the system producing anisotropic paths for the Fe-O bondings giving rise to a large orbital-lattice interaction akin to a preferential crystallographic direction for the magnetic orbital moment. The latter may lead to a partial re-orientation of the magnetic orbital moment under an external magnetic field that, combined to the ferrimagnetic nature of the GFO, can qualitatively explain the observed sign-reversal of the XMCD integral. The results suggest that a control over the local symmetry of the oxygen octahedra in transition metal oxides can offer a suitable leverage over the manipulation of the effective orbital and spin moments in magnetoelectric systems.
Πρόσθια vs οπίσθια vs πλάγια προσπέλαση ισχίου: άμεσα και μακροπρόθεσμα αποτελέσματα βιωσιμότητας της πρόθεσης και ικανοποίησης του ασθενούς. Κριτική ανάλυση και μεταανάλυση δεδομένων
Creators: name: Κακουλίδης, Παναγιώτης Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Ολική αρθροπλαστική ισχίου
Πρόσθια προσπέλαση
Οπίσθια/πλάγια προσπέλαση
Total Hip Arthroplasty
Anterior approach
Posterior/Lateral approach

description: Σκοπός της μελέτης είναι η κριτική ανάλυση και μετα-ανάλυση των βραχυπρόθεσμων και μακροπρόθεσμων αποτελεσμάτων των συγκριτικών μελετών της πρόσθιας προσπέλασης σε σχέση με την οπίσθια και την πλάγια προσπέλαση σε ασθενείς που υπόκεινται σε ολική αρθροπλαστική ισχίου. Αναζητήσαμε στο PubMed, Cochrane και Embase παράγοντες όπως ο μετεγχειρητικός πόνος, επιπλοκές , απώλεια αίματος, ημέρες νοσηλείας και διάρκεια χειρουργείου. Τα άμεσα λειτουργικά αποτελέσματα και η διάρκεια νοσηλείας φαίνεται ότι ευνοούν την πρόσθια προσπέλαση αλλά δεν παρατηρήθηκε διαφορά στο ποσοστό των επιπλοκών , τα ποσοστά μετάγγισης και τα μακροπρόθεσμα λειτουργικά αποτελέσματα. Η πλάγια προσπέλαση φάνηκε ότι υπερείχε από την πρόσθια όσον αφορά τον μέσο χειρουργικό χρόνο αλλά καμία διαφορά δεν παρατηρήθηκε μεταξύ της πρόσθιας και της οπίσθιας προσπέλασης σ αυτήν την παράμετρο. Η παρούσα βιβλιογραφία δεν αποδεικνύει ξεκάθαρη υπεροχή για καμία προσπέλαση. Μέχρι να είναι διαθέσιμες περισσότερες αποδείξεις , η επιλογή της χειρουργικής προσπέλασης θα είναι στην ευχέρεια και εμπειρία του χειρουργού καθώς και τα χαρακτηριστικά των ασθενών.
description: The objective of the study is the critical analysis and meta analysis of short and long-term results of comparative studies of minimal invasive anterior hip approach versus lateral and posterior approach in patients undergoing primary total hip arthroplasty. We searched PubMed, Cochrane and Embase in terms of post-operative pain, complications, blood loss, days of hospitalization and operation time. Short term functional results and length of stay seem to favor the anterior approach but there is no difference in complication rate, transfusion rate and long term functional results. Mean operation time showed superiority of lateral approach against anterior but no difference was found between anterior and posterior approach. Current evidence does not demonstrate clear superiority of either approach. Until more evidence is available, the choice of surgical approach is up to patient characteristics, surgeon experience and preference.
Surprising suspensions: the epistemic value of being ignorant
Creators: name: Willard-Kyle, Christopher
Publisher: name: No Publisher Supplied
Year: 2021

description: Knowledge is good, ignorance is bad. So it seems, anyway. But in this dissertation, I argue that some ignorance is epistemically valuable. Sometimes, we should suspend judgment even though by believing we would achieve knowledge. In this apology for ignorance (ignorance, that is, of a certain kind), I defend the following four theses:1) Sometimes, we should continue inquiry in ignorance, even though we are in a position to know the answer, in order to achieve more than mere knowledge (e.g. understanding) while minimizing the effects of confirmation bias.2) It’s false that we should believe every proposition such that we are guaranteed to be right about it (and even such that we are guaranteed to know it) if we believe it.3) Being in a position to know is the norm of assertion: importantly, this does not require belief or (thereby) knowledge, so proper assertion can survive speaker-ignorance.4) It can be permissible and conversationally useful to tell audiences things that it is logically impossible for them to come to know: Proper assertion can survive (necessary) audience-side ignorance.Cumulatively, this project suggests that, properly understood, ignorance has an important role to play in the good epistemic life.
Local encoding of classical information onto quantum states
Creators: name: Tanaka, Yu
name: Markham, Damian
name: Murao, Mio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this article we investigate the possibility of encoding classical information onto multipartite quantum states in the distant laboratory framework. We show that for all states generated by Clifford operation there always exist such an encoding, this includes all stabilizer states such as cluster states and all graph states. We also show encoding for classes of symmetric states (which cannot be generated by Clifford operations). We generalise our approach using group theoretic methods introducing the unifying notion of Pseudo Clifford operations. All states generated by Pseudo Clifford operations are locally encodable (unifying all our examples), and we give a general method for generating sets of many such locally encodable states.
description: 10 pages, 4 figures. Version II. Missing references added, minor simplification of theorem and minor errors corrected. Published in a special issue of Journal of Modern Optics celebrating the 60th birthday of Peter Knight
Anomaly Detection in Dynamic Graphs via Transformer
Creators: name: Liu, Yixin
name: Pan, Shirui
name: Wang, Yu Guang
name: Xiong, Fei
name: Wang, Liang
name: Chen, Qingfeng
name: Lee, Vincent CS
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Detecting anomalies for dynamic graphs has drawn increasing attention due to their wide applications in social networks, e-commerce, and cybersecurity. Recent deep learning-based approaches have shown promising results over shallow methods. However, they fail to address two core challenges of anomaly detection in dynamic graphs: the lack of informative encoding for unattributed nodes and the difficulty of learning discriminate knowledge from coupled spatial-temporal dynamic graphs. To overcome these challenges, in this paper, we present a novel Transformer-based Anomaly Detection framework for DYnamic graphs (TADDY). Our framework constructs a comprehensive node encoding strategy to better represent each node's structural and temporal roles in an evolving graphs stream. Meanwhile, TADDY captures informative representation from dynamic graphs with coupled spatial-temporal patterns via a dynamic graph transformer model. The extensive experimental results demonstrate that our proposed TADDY framework outperforms the state-of-the-art methods by a large margin on six real-world datasets.
description: 13 pages, 5 figures
Stabilization of internal space in noncommutative multidimensional cosmology
Creators: name: Khosravi, N.
name: Jalalzadeh, S.
name: Sepangi, H. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the cosmological aspects of a noncommutative, multidimensional universe where the matter source is assumed to be a scalar field which does not commute with the internal scale factor. We show that such noncommutativity results in the internal dimensions being stabilized
description: 8 pages, 1 figure, to appear in IJMPD
Eine linguistische Untersuchung mit Digitalen Apps (Applikationen): ‚Falsche Freunde‘ deutsch/ griechisch
Creators: name: Φύκα, Αμαλία-Μαρία Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Γλωσσολογική έρευνα
«Ψευδοφιλία» γερμανικών/ ελληνικών
Ψηφιακές εφαρμογές
Linguistic survey
“False friends” German/ Greek
Digital apps (applications)

description: Die vorliegende Arbeit untersucht das linguistische Phänomen der ‚falschen Freunde‘ zwischen der deutschen und der griechischen Sprache. Für die Datenerhebung wurde als Instrument ein elektronisches Spiel entwickelt. Außerdem wurde eine webbasierte schriftliche Befragung (Fragebogen) eingesetzt, die eine doppelte Funktion erfüllte: Zum einen das Sammeln von Informationen über die Teilnehmenden am Spiel und zum anderen die Evaluation des Spiels von den Teilnehmenden. Die ProbandInnen sind Studierende der Abteilung für Deutsche Sprache und Philologie der Aristoteles Thessaloniki. Es wurden insgesamt 41 StudentInnen befragt, von denen 21 einsprachig (monolingual) und 20 zweisprachig (bilingual) aufgewachsen sind. In diesem Zusammenhang werden Schlüsse gezogen, was ‚falsche Freunde‘ im Vergleich zwischen den beiden Gruppen anbelangt.
description: Η παρούσα εργασία εξετάζει το γλωσσολογικό φαινόμενο της «ψευδοφιλίας» μεταξύ της γερμανικής και της ελληνικής γλώσσας. Για την έρευνα του φαινομένου αναπτύχθηκε ένα ηλεκτρονικό παιχνίδι ως εργαλείο/ μέσο έρευνας. Επιπλέον χρησιμοποιήθηκε ένα ηλεκτρονικό ερωτηματολόγιο, το οποίο έχει διττή λειτουργία: το να συλλεχτούν πληροφορίες σχετικά με τους συμμετέχοντες του παιχνιδιού, ενώ επιπλέον λειτουργεί και ως μια αξιολόγηση των συμμετεχόντων στο παιχνίδι. Οι συμμετέχοντες είναι φοιτητές/–τριες του τμήματος Γερμανικής Γλώσσας και Φιλολογίας του Αριστοτελείου Πανεπιστημίου Θεσσαλονίκης. Ήταν συνολικά 41 φοιτητές/–τριες, από τους οποίους οι 21 ήταν μονόγλωσσοι και οι 20 δίγλωσσοι. Στο πλαίσιο αυτό εξάγονται συμπεράσματα όσον αφορά τη «ψευδοφιλία» συγκριτικά και με τις δύο ομάδες συμμετεχόντων.
description: The present linguistic work examines the linguistic phenomenon of ‚false friends’ between the German and the Greek language. For the survey of the phenomenon an electronic game is developed as instrument. In addition, a web–based written questionnaire is used, which has a dual function: to gather information about the participants of the game and furthermore functions as an evaluation of the game from the participants. The participants are students from the school of German language and literature in Aristotle university of Thessaloniki. They were in total 41 students, of whom 21 were monolingual and 20 bilingual. In this connection conclusions are drawn, as far as ‚false friends’ in comparison to both groups concerned.
Linear Connections and Curvature Tensors in the Geometry of Parallelizable Manifolds
Creators: name: Youssef, Nabil L.
name: Sid-Ahmed, Amr M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this paper we discuss curvature tensors in the context of Absolute Parallelism geometry. Different curvature tensors are expressed in a compact form in terms of the torsion tensor of the canonical connection. Using the Bianchi identities some other identities are derived from the expressions obtained. These identities, in turn, are used to reveal some of the properties satisfied by an intriguing fourth order tensor which we refer to as Wanas tensor. A further condition on the canonical connection is imposed, assuming it is semi-symmetric. The formulae thus obtained, together with other formulae (Ricci tensors and scalar curvatures of the different connections admitted by the space) are calculated under this additional assumption. Considering a specific form of the semi-symmetric connection causes all nonvanishing curvature tensors to coincide, up to a constant, with the Wanas tensor. Physical aspects of some of the geometric objects considered are mentioned.
description: 16 pages LaTeX file, Changed title, Changed content, Added references, Physical features stressed
An Interactive Web App Playbook With an AI Assistant for Improving Organizational Communication
Creators: name: Tan, Wen Yang
name: Wong, Nicholas Heng Loong
Publisher: name: Singapore Institute of Technology
Year: 2024
Subjects: classificationCode: 460501
subject: Data engineering and data science
classificationCode: 460910
subject: Information systems user experience design and development
classificationCode: 460912
subject: Knowledge and information management
classificationCode: 460807
subject: Information visualisation
classificationCode: 461003
subject: Human information interaction and retrieval
classificationCode: 461008
subject: Organisation of information and knowledge resources
classificationCode: 461103
subject: Deep learning
classificationCode: 461104
subject: Neural networks
classificationCode: 461199
subject: Machine learning not elsewhere classified
classificationCode: 460206
subject: Knowledge representation and reasoning
classificationCode: 460208
subject: Natural language processing
classificationCode: 350710
subject: Organisational behaviour

description: In today’s fast-paced organizational environments, the need for engaging and effective knowledge transfer tools is paramount. Traditional static playbooks often fail to engage, and hence, support knowledge retention by their users in organiza?tions. This paper presents a realization of an interactive web app playbook, meant to mitigate these challenges and provide a dynamic and user-friendly platform that fosters high engagement, simplification of complex methodologies, and improved transfer of knowledge. The intuitive interface is complemented by an AI-based chatbot assistant to provide contextually relevant and personalized responses to user queries. Our study has found that the interactive playbook considerably improves user engagement, comprehension, and knowledge retention.
Semi-Leptonic Decay of a Polarized Top Quark in the Noncommutative Standard Model
Creators: name: Najafabadi, Mojtaba Mohammadi
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we study the noncommutative effects to the lepton spectrum from the decay of a polarized top quark. It is shown that the lowest contribution comes from the quadratic terms of the noncommutative parameter. The deviations from the standard model are significant for small values of the noncommutative characteristic scale. However, the charged lepton spin correlation coefficient has a remarkable deviation from the standard model from very low values of the noncommutative characteristic scale to 1 TeV.
description: 8 pages, 4 figures
A nonlinear classical model for the decay widths of Isoscalar Giant Monopole Resonances
Creators: name: Papachristou, P. K.
name: Mavrommatis, E.
name: Constantoudis, V.
name: Diakonos, F. K.
name: Wambach, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The decay of the Isoscalar Giant Monopole Resonance (ISGMR) in nuclei is studied by means of a nonlinear classical model consisting of several noninteracting nucleons (particles) moving in a potential well with an oscillating nuclear surface (wall). The motion of the nuclear surface is described by means of a collective variable which appears explicitly in the Hamiltonian as an additional degree of freedom. The total energy of the system is therefore conserved. Although the particles do not directly interact with each other, their motions are indirectly coupled by means of their interaction with the moving nuclear surface. We consider as free parameters in this model the degree of collectivity and the fraction of nucleons that participate to the decay of the collective excitation. Specifically, we have calculated the decay width of the ISGMR in the spherical nuclei $^{208}\rm{Pb}$, $^{144}\rm{Sm}$, $^{116}\rm{Sn}$ and $^{90}\rm{Zr}$. Despite its simplicity and its purely classical nature, the model reproduces the trend of the experimental data which show that with increasing mass number the decay width decreases. Moreover the experimental results (with the exception of $^{90}\rm{Zr}$) can be well fitted using appropriate values for the free parameters mentioned above. It is also found that these values allow for a good description of the experimentally measured $^{112}\rm{Sn}$ and $^{124}\rm{Sn}$ decay widths. In addition, we give a prediction for the decay width of the exotic isotope $^{132}Sn$ for which there is experimental interest. The agreement of our results with the corresponding experimental data for medium-heavy nuclei is dictated by the underlying classical mechanics i.e. the behaviour of the maximum Lyapunov exponent as a function of the system size.
Psychopathy, alexithymia and affect in female offenders
Creators: name: Louth, Shirley May
Publisher: name: University of British Columbia
Year: 2009

description: Psychopathy and alexithymia are disorders with many conceptual similarities. For example, Factor 1 of the Psychopathy Checklist - Revised (PCL-R; Hare, 1991) contains items like shallow affect and lack of empathy, which seem to map on to the construct of alexithymia. Additionally, both psychopaths and alexithymics display striking differences from others in their use of language, especially affective language. The two areas of interest in the present study were (a) occurrence and co—occurrence of psychopathy and alexithymia in a sample of female inmates, and (b) the relationship between affective language and these two disorders. Psychopathy and alexithymia were assessed in 37 women offenders incarcerated in a Burnaby Correctional Centre, using the PCL-R and the Toronto Alexithymia Scale ( TAS; Taylor, Ryan & Bagby, 1985). Each subject was presented with a short written scenario designed to elicit an emotional response, and asked to describe the feelings of the characters in the story. Their taped responses were analyzed for measures of affect. Base rates of both disorders were comparable to those in similar samples, ( 30% of the inmates were diagnosed as psychopathic; 33% as alexithymic) but the coxnorbidity rate was only 8%. There was a significant correlation between alexithymia scores and PCL—R Factor 2 scores — the factor assessing antisocial behaviour. Multiple regression analysis revealed that the TAS and PCL-R were both predictive of violence. This relationship between the PCL-R and violence is well substantiated; that the TAS also predicts violence is a newer finding. Alexithymics spoke more slowly, used fewer total words overall and fewer affective words, and displayed less emotion in their voices than did nonalexithymics. Psychopaths could not be identified by any vocal measures except a slight tendency to speak faster than nonpsychopaths. Although both disorders are characterized’ by affective impoverishment, the verbal expressions of affect were very different in psychopaths and alexithymics. The psychopaths were adept at convincing raters of an emotional investment they did not feel; alexithymics could not disguise their lack of appropriate emotional response.
Dowd et al. Mesopelagic Fisheries Manuscript Data Package
Creators: name: Dowd, Sally
name: Chapman, Melissa
name: Koehn, Laura E.
name: Hoagland, Porter
Publisher: name: Zenodo
Year: 2021

description: This is the code used for the ecological analyses in a recently submitted manuscript studying the mesopelagic zone.
description: {"references": ["Lucey, S. M., Gaichas, S. K., & Aydin, K. Y. (2020). Conducting reproducible ecosystem modeling using the open source mass balance model Rpath. Ecological Modelling, 427, 109057.", "Koehn, L. E., Essington, T. E., Marshall, K. N., Kaplan, I. C., Sydeman, W. J., Szoboszlai, A. I., & Thayer, J. A. (2016). Developing a high taxonomic resolution food web model to assess the functional role of forage fish in the California Current ecosystem. Ecological Modelling, 335, 87-100."]}