cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Το ανασταλτικό αποτέλεσμα της έφεσης μετά τον Ν. 3904/2010
Creators: name: Δημησκής, Αγγελος Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Ανασταλτικό αποτέλεσμα
Έφεση
Νόμος 3904/2010
Suspensive effect
Appeal
Law 3904/2010

description: Αντικείμενο της παρούσης είναι το ανασταλτικό αποτέλεσμα του ενδίκου μέσου της εφέσεως. Το ανασταλτικό αποτέλεσμα έχει όχι αδίκως χαρακτηριστεί το πλέον σημαντικό εκ των αποτελεσμάτων που επιφέρει η άσκηση της έφεσης κατά αποφάσεων ποινικών δικαστηρίων διότι συχνά πραγματεύεται την ελευθερία του κατηγορουμένου. Στην εργασία αυτή εξετάζονται οι λόγοι που επιβάλλουν την ύπαρξή του ανασταλτικού αποτελέσματος και φωτίζονται ιδιαίτερα οι ευρείες τροποποιήσεις που επήλθαν στο θεσμό αυτόν από τη θέση σε ισχύ του Ν. 3904/2010 με μία παράλληλη έκθεση του παλαιότερου νομοθετικού καθεστώτος προκειμένου να καταδειχθούν τα διαχρονικά ζητήματα που έχουν ανακύψει από την εφαρμογή των οικείων διατάξεων και να διαπιστωθεί εάν αυτά βρήκαν απάντηση με τη νέα νομοθετική ρύθμιση και σε ποιο βαθμό. Η παρούσα μελέτη συνίσταται σε δύο βασικούς πυλώνες: το ανασταλτικό αποτέλεσμα στο χώρο της έφεσης κατά βουλευμάτων και το ανασταλτικό αποτέλεσμα στο χώρο της έφεσης κατά αποφάσεων, εντός των οποίων εκτίθενται διάφορα μερικότερα ζητήματα που χρήζουν ερμηνευτικής προσέγγισης καθώς και θεματικές σχετιζόμενες σε μεγάλο βαθμό με το ανασταλτικό αποτέλεσμα. Tέλος δεν θα μπορούσε να λείπει μία εκτενής αναφορά για την περίπτωση κατά την οποία ανακύπτει αμφισβήτηση σχετικά με την ανασταλτική δύναμη του ενδίκου μέσου
description: The object of this Thesis is the suspensive effect of the appeal as a legal process. The suspensive effect is not without a reason, characterized as the most important of the results following the appeal because in criminal cases it usually has to do with the freedom of the defendant. In this paper, we examine the reasons why the suspensive effect is necessary, emphasizing the broad changes brought to this process by the amending Law 3904/2010, with a parallel exhibition of the oldest legislative arrangements in order to demonstrate the temporal issues that have arisen from the application of relevant provisions and to establish whether they were resolved with the new legislation and to what extent. The present study consists of two main pillars: the suspensive effect of the appeal against a pre - trial judgment and the suspensive effect of the appeal against a court's decision. Furthermore various individual aspects related largely to the suspensive effect are exposed and analyzed. Last but not least there is an extensive reference about the cases in which it’ s not clear whether or not the appeal has got suspensive effect.
Η Διδασκαλία Της Γραμματικής Μέσα Από Μία Κριτική Οπτική: Προβλήματα Και Προοπτικές
Creators: name: Καραχρήστου, Ζωή Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Κριτικός Γραμματισμός
Συστημική Λειτουργική Γραμματική
Θεματική Ενότητα – Ταξίδια Προσφύγων και Μεταναστών
Critical Literacy
Systemic Functional Grammar
Thematic Union – Travels of Refugees and Immigrants

description: Η παρούσα εργασία είναι μια εθνογραφικού τύπου έρευνα το αντικείμενο της οποίας είναι διπλό. Πρώτον, να διερευνήσει τις διαλογικές διαδικασίες μέσω των οποίων η ενασχόληση με τη γραμματική (κατανόηση λεξικο-γραμματικών επιλογών των συγγραφέων/λειτουργική επιτέλεση της γραμματικής) μπορεί να βοηθήσει τους/τις μαθητές/-τριες να κατανοήσουν την ιδεολογική φύση των κειμένων. Δεύτερον, να καταγράψει τις προοπτικές και τα προβλήματα από μια διδασκαλία γραμματικής με κριτικό προσανατολισμό, που ανακύπτουν τόσο για τον διδάσκοντα όσο και για τα μαθητικά υποκείμενα. Οι δύο αυτοί στόχοι πραγματώθηκαν μέσα από τον σχεδιασμό και την εφαρμογή μιας πολυφωνικής θεματικής ενότητας Κριτικού Γραμματισμού σε εικοσιτέσσερις μαθητές/-τριες Ε΄ Δημοτικού μιας μεσοαστικής περιοχής του νομού Θεσσαλονίκης. Η λεπτομερής ανάλυση των διαλογικών διαδικασιών εντός της σχολικής τάξης έδειξε πως στη διάρκεια της ενότητας οι συμμετέχοντες/-ουσες διαπραγματεύτηκαν αξίες και τοποθέτησαν ιδεολογικά τους εαυτούς τους στο θέμα της έλευσης των προσφυγικών ροών στην Ελλάδα. Σε ό, τι αφορά τη γραμματική, έγινε φανερό ότι οι μαθητές/-τριες κατανόησαν τους τρόπους με τους οποίους λεκτικά και γραμματικά στοιχεία συναρθρώνονται για να δομήσουν ιδεολογίες τόσο κατά την επεξεργασία του κεντρικού κειμένου στην ολομέλεια και όσο και κατά την αξιολόγηση των παραγόμενων από τους/τις ίδιους/-ες γραπτών κειμένων.
description: The present thesis is an ethnographic study which aims to attain a twofold set of objectives. First, to investigate the dialogic processes that may help students understand the ideological nature of lexico-grammatical choices (elements of functional grammar) as used in various texts discussed in classrooms. Second, to highlight the perspectives and problems created when teachers attempt to introduce a new paradigm to grammar teaching, one that highlights its critical nature of language use. These two goals were implemented through the planning and the enactment of a polyphonic thematic unit in a fifth grade students of a state primary school in Thessaloniki. The detailed analysis of the dialogic processes has shown that during the thematic unit the participants negotiated values and positioned themselves ideologically regarding the issue at hand, i.e. of the arrival of refugees in Greece. Concerning grammar, it became obvious that students understood the ways in which semiotic and grammatical elements were co-articulated in texts and the ideological purposes this served. This was done through the analysis of the discussion of one text, the main text, discussed in the plenary session and through the analysis of the written texts produced by their classmates.
BERT-Based Sentiment Analysis: A Software Engineering Perspective
Creators: name: Batra, Himanshu
name: Punn, Narinder Singh
name: Sonbhadra, Sanjay Kumar
name: Agarwal, Sonali
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Sentiment analysis can provide a suitable lead for the tools used in software engineering along with the API recommendation systems and relevant libraries to be used. In this context, the existing tools like SentiCR, SentiStrength-SE, etc. exhibited low f1-scores that completely defeats the purpose of deployment of such strategies, thereby there is enough scope for performance improvement. Recent advancements show that transformer based pre-trained models (e.g., BERT, RoBERTa, ALBERT, etc.) have displayed better results in the text classification task. Following this context, the present research explores different BERT-based models to analyze the sentences in GitHub comments, Jira comments, and Stack Overflow posts. The paper presents three different strategies to analyse BERT based model for sentiment analysis, where in the first strategy the BERT based pre-trained models are fine-tuned; in the second strategy an ensemble model is developed from BERT variants, and in the third strategy a compressed model (Distil BERT) is used. The experimental results show that the BERT based ensemble approach and the compressed BERT model attain improvements by 6-12% over prevailing tools for the F1 measure on all three datasets.
Schrodinger representation for the polarized Gowdy model
Creators: name: Torre, C. G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The polarized ${\bf T}^3$ Gowdy model is, in a standard gauge, characterized by a point particle degree of freedom and a scalar field degree of freedom obeying a linear field equation on ${\bf R}\times{\bf S}^1$. The Fock representation of the scalar field has been well-studied. Here we construct the Schrodinger representation for the scalar field at a fixed value of the Gowdy time in terms of square-integrable functions on a space of distributional fields with a Gaussian probability measure. We show that ``typical'' field configurations are slightly more singular than square-integrable functions on the circle. For each time the corresponding Schrodinger representation is unitarily equivalent to the Fock representation, and hence all the Schrodinger representations are equivalent. However, the failure of unitary implementability of time evolution in this model manifests itself in the mutual singularity of the Gaussian measures at different times.
description: 13 pages
Το στοιχείο του υπερφυσικού και η ιδέα της δικαιοσύνης στο Βυζάντιο: Μια συνύφανση
Creators: name: Ασημακοπούλου, Αικατερίνη Ασημάκη
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Υπερφυσικό
Ιδέα της Δικαιοσύνης
Βυζάντιο
Supernatural
Idea of justice
Byzantium

description: Σκοπός της διατριβής ήταν η αναζήτηση της σύνδεσης μεταξύ του υπερφυσικού στοιχείου και της ιδέας της δικαιοσύνης στο Βυζάντιο. Το θεωρητικό πλαίσιο που τέθηκε είναι η θεωρία του φαινομενολόγου Alfred Schutz και των κοινωνιολόγων της σχολής του λειτουργισμού, Robert King Merton και Talcott Parsons. Διακρίναμε την μαγεία από την θρησκεία και είδαμε συνοπτικά τις θεωρίες περί δικαιοσύνης. Εξετάσαμε τον Homo Byzantinus, τα στοιχεία που απαρτίζανε τον κόσμο του υπερφυσικού στον οποίο πίστευε και την ιδέα που εκείνος είχε για την δικαιοσύνη. Μελετήσαμε ακόμη τον ρόλο της εκκλησίας, την απόδοση ευθύνης στους δαίμονες για ποινικά αδικήματα, τις παρεμβάσεις των αγίων στο έργο απονομής της δικαιοσύνης και τα έθιμα της θεοδικίας και της σταυροδιαβασίας. Συμπεράναμε ότι η ιδέα της δικαιοσύνης στο Βυζάντιο ήταν συνυφασμένη με το στοιχείο του υπερφυσικού.
description: The aim of the present thesis was the search of the link between the supernatural element and the idea of justice in Byzantium. The theoretical framework is the theory of the phenomenologist, Alfred Schutz and of the sociologists of the functionalist approach, Robert King Merton and Talcott Parsons. We have distinguished magic from religion and we have touched briefly upon the various theories concerning justice. We studied Homo Byzantinus and his idea of justice. We also studied the role of the church, the ascription of responsibility for crimes to demons, the interventions of saints in the pursuit of justice and the customs of theodicy and “stavrodiavasia”. We have come to the conclusion that the idea of justice in Byzantium was interwoven with the element of the supernatural.
Action for perception : influence of handedness in visuo-auditory sensory substitution
Creators: name: Hanneton, Sylvain
name: Munoz, Claudia
Publisher: name: arXiv
Year: 2006
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: In this preliminary study we address the question of the influence of handedness on the localization of targets perceived through a visuo-auditory substitution device. Participants hold the device in one hand in order to explore the environment and to perceive the target. They point to the estimated location of the target with the other hand. This preliminary results support our hypothesis that pointing is more accurate when the device is held in the right dominant hand. Dexterity has to be attributed to the active part of the perceptive system. This study has obviously to be completed but it shows how the concept of enaction is important and how it can be experimentaly addressed in the field of sensory substitution.
Coherent Suppression of Molecular Bremsstrahlung Radiation at GHz Frequencies in the Ionization Trail of Extensive Air Showers
Creators: name: Deligny, Olivier
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Several attempts to detect extensive air showers (EAS) induced by ultrahigh-energy cosmic rays have been conducted in the last decade based on the molecular Bremsstrahlung radiation (MBR) at GHz frequencies from quasi-elastic collisions of ionisation electrons left in the atmosphere after the passage of the cascade of particles. These attempts have led to the detection of a handful of signals only, all of them forward-directed along the shower axis and hence suggestive of originating from geomagnetic and Askaryan emissions extending into GHz frequencies close to the Cherenkov angle. In this paper, the lack of detection of events is explained by the coherent suppression of the MBR in frequency ranges below the collision rate due to the destructive interferences impacting the emission amplitude of photons between the successive collisions of the electrons. The spectral intensity at the ground level is shown to be several orders of magnitude below the sensitivity of experimental setups. In particular, the spectral intensity at 10~km from the shower core for a vertical shower induced by a proton of $10^{17.5}$ eV is 7-to-8 orders of magnitude below the reference value anticipated from a scaling law converting a laboratory measurement to EAS expectations. Consequently, the MBR cannot be seen as the basis of a new detection technique of EAS for the next decades.
description: 14 pages, 6 figures, to appear in Astroparticle Physics
Flow Equations for Non-BPS Extremal Black Holes
Creators: name: Ceresole, Anna
name: Dall'Agata, Gianguido
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We exploit some common features of black hole and domain wall solutions of (super)gravity theories coupled to scalar fields and construct a class of stable extremal black holes that are non-BPS, but still can be described by first-order differential equations. These are driven by a "superpotential'', which replaces the central charge Z in the usual black hole potential. We provide a general procedure for finding this class and deriving the associated "superpotential''. We also identify some other cases which do not belong to this class, but show a similar behaviour.
description: LaTeX, 21 pages, 2 figures. v2: reference added, JHEP version
Σχολική κοινωνική εργασία και ειδική αγωγή. Ρόλος του κοινωνικού λειτουργού στις σχολικές μονάδες ειδικής αγωγής και εκπαίδευσης (ΣΜΕΑΕ). Πρόγραμμα παρέμβασης σε μαθητή με νοητική ανεπάρκεια
Creators: name: Μαχαιράκη, Κωνσταντίνα Κυριάκου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Σχολική κοινωνική εργασία
Κοινωνικός λειτουργός
Πρόγραμμα παρέμβασης
Νοητική ανεπάρκεια
School social work
Social worker
Intervention program
Mental retardation

description: Η σχολική κοινωνική εργασία αποτελεί ένα κλάδο στην επιστήμη της κοινωνικής εργασίας που στόχο έχει την ισότιμη πρόσβαση και ενεργό συμμετοχή των μαθητών στην εκπαίδευση. Στις σχολικές μονάδες ειδικής αγωγής και εκπαίδευσης ο κοινωνικός λειτουργός αποτελεί το συνδετικό κρίκο ανάμεσα στο μαθητή με αναπηρία, την οικογένεια του και τη σχολική κοινότητα. Στα πλαίσια του αντικειμένου της ειδικότητας του είναι να σχεδιάζει και να οργανώνει προγράμματα παρέμβασης με στόχο την αντιμετώπιση των δυσκολιών και αναγκών του μαθητή αλλά και την ενίσχυση των δεξιοτήτων του, καθώς και την συμβουλευτική υποστήριξη της οικογένειας και των εκπαιδευτικών του σχολείου. Η εφαρμογή των προγραμμάτων παρέμβασης στην κοινωνική εργασία γίνεται μέσω των τριών μεθόδων κοινωνικής εργασίας, κοινωνική εργασία με άτομα και οικογένεια, κοινωνική εργασία με ομάδες και κοινωνική εργασία με κοινότητα. Σκοπός της παρούσας έρευνας είναι να αναδείξει τη μεθοδολογία που χρησιμοποιήθηκε από την κοινωνικό λειτουργό σε μία σχολική μονάδα ειδικής αγωγής δευτεροβάθμιας εκπαίδευσης στην καταγραφή και αξιολόγηση των αναγκών ενός μαθητή με νοητική ανεπάρκεια. Επίσης περιλαμβάνει το σχεδιασμό και την εφαρμογή ενός κοινωνικού προγράμματος παρέμβασης. Ακόμα προσπαθεί να αναδείξει τα οφέλη αλλά και τις δυσκολίες που προέκυψαν μέσα από την εφαρμογή του προγράμματος παρέμβασης καθώς και να διατυπώσει προτάσεις για την αντιμετώπιση των προβλημάτων αυτών στο μέλλον.
description: The school social work is a branch of science in social work which aims to equal access and active participation of students in education. In special school education units, the social worker provides the link between the student with disabilities, the family and the school community. Within the specification object is to design and organize intervention programs aimed at addressing the problems and needs of the student, to enhance the skills, as well as to councel the family and teachers of the school. The implementation of the intervention programs is possible through the three social work methods, social work with individuals and families, social work with groups and social work community. The purpose of this research is to demonstrate the methodology used by the social worker in a special education secondary school in the recording and evaluation of the needs to a student with mental retardation. Also the design and implementation of social intervention program to the student. Futhermore to highlight the benefits and the difficulties encountered through the implementation of the intervention program and make proposals to encounter this problem in the future.
Ανίχνευση σημείων αλλαγής κατάστασης σε πολυμεταβλητές χρονοσειρές με στατιστικά συσχέτισης.
Creators: name: Σκαπέρας, Σωτήρης Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: subject: Στατιστική
subject: Πολυμεταβλητές χρονσειρές
subject: Σημεία αλλαγής κατάστασης
subject: Statistics
subject: FOS: Mathematics
subject: Multivariate time series
subject: Change points

description: Η παρούσα εργασία πραγματεύεται το πρόβλημα της ανίχνευσης και εκτίμησης ενός ή περισσότερων χρονικών σημείων αλλαγής κατάστασης (σ.α.κ) σε μια πολυμεταβλητή χρονοσειρά εξαρτημένων παρατηρήσεων, με μεθόδους «εκ των προτέρων» και «εκ των υστέρων» ανάλυσης. Σκοπός μας είναι η σύγκριση και αξιολόγηση παραμετρικών και μη- παραμετρικών ελέγχων επιλεγμένων από τη βιβλιογραφία, σε συνδυασμό με αλγορίθμους εύρεσης σ.α.κ ώστε να είναι δυνατή ανίχνευση πολλαπλών σ.α.κ. Η αξιολόγηση των ελέγχων γίνεται με διάφορα προσομοιωτικά δεδομένα σχετικά με το μήκος της χρονοσειράς, το πλήθος των παραμέτρων, το στατιστικό χαρακτηριστικό που σχετίζεται με το σ.α.κ (διακύμανση, δια- συνδιακύμανση, συνδιακύμανση), το μοντέλο παραγωγής των παρατηρήσεων (VAR και GARCH), την κατανομή των υπολοίπων (προερχόμενα από την κ.κ και την log- normal) και το πλήθος των χρονικών σημείων αλλαγής κατάστασης. Ακόμα προτείνουμε ένα πολυμεταβλητό μη- παραμετρικό στατιστικό έλεγχο και ένα τροποποιημένο αλγόριθμο εύρεσης σ.α.κ βασισμένο στον αλγόριθμο BS. Τέλος παρουσιάζουμε τα αποτελέσματα της εφαρμογής ενός εκ των ελέγχων και ενός εκ των αλγορίθμων εύρεσης σε πραγματικά δεδομένα προερχόμενα από τιμές μετοχών δύο χρηματιστηρίων των ΗΠΑ.
description: In this thesis, we investigate the problem of detection and estimation of one or mutiple change points (c.p) in a multivariate time series of dependent observations, using methods from "on-line" and "off-line" analysis. Our goal is to compare and evaluate parametric and non-parametric tests from the literature, which are combined with detection algorithms to be possible to detect multiple c.p. The evaluation of the tests is carried out by simulation data based on the length of the time series, the number of parameters, the statistical characteristic associated with c.p (variance, cross-covariance, covariance), the data generating model (VAR and GARCH), the distribution of the residuals (derived from normal and log normal distribution) and the number of change points. Still, we propose a multivariate non-parametric statistic test and a modified detection algorithm based on BS algorithm. Finally we present the results of an application to financial data from stock prices of two US stock exchanges.
Polytypism and Superconductivity in the NbS$_2$ System
Creators: name: Witteveen, Catherine
name: Gornicka, Karolina
name: Chang, Johan
name: Månsson, Martin
name: Klimczuk, Tomasz
name: von Rohr, Fabian O.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on the phase formation and the superconducting properties in the NbS$_2$ system. Specifically, we have performed a series of standardized solid-state syntheses in this system, which allow us to establish a comprehensive synthesis map for the formation of the two polytypes 2H-NbS$_2$ and 3R-NbS$_2$, respectively. We show that the identification of two polytypes by means of X-ray diffraction is not always unambiguous. Our physical property measurements on a phase-pure sample of 3R-NbS$_2$, on a phase-pure sample of 2H-NbS$_2$, and a mixed phase sample confirm earlier reports that 2H-NbS$_2$ is a bulk superconductor and that 3R-NbS$_2$ is not a superconductor above $T =$ 1.75 K. Our results clearly show that specific heat measurements, as true bulk measurements, are crucial for the identification of superconducting materials in this and related systems. Our results indicate that for the investigation of van-der-Waals materials great care has to be taken on choosing the synthesis conditions for obtaining phase pure samples.
description: https://pubs.rsc.org/en/content/articlelanding/2021/dt/d0dt03636f#!divAbstract
The influence of biological and chemical clogging on the transmissivity of geonets in secondary leachate collection systems of waste containment facilities
Creators: name: Noyon, Mark Anthony
Publisher: name: University of British Columbia
Year: 2009

description: Geosynthetics are used in a wide variety of applications, including lining and drainage of waste containment facilities. A limited amount of data were available on the clogging potential of geonets and needed to be addressed. Using leachate from a MSW landfill simulated realistic conditions. In addition, a hydraulic gradient and confining stress of 0.02 and 300 kPa respectively were used as constant test parameters. Clogging rates of 36 and 96 hours were observed with new leachate that was high in iron. Reduced rates of clogging occurred where the leachate strength was lower. All tests did, however, have rapid clogging (all test combinations would have clogged within 100 days). This clogged material pooled in the pores of the geonet and did not adhere strongly to either the geonet or the geomembrane. Differences were observed with the various combinations. Textured geomembranes had higher rates of clogging than smooth geomembranes. High density polyethylene did not reduce the cross sectional area of a geonet as much as low density polyethylene. Both the transmissivity values of the geonet as well as the geonets imprint on the geomembrane substantiated this. Geonet orientation appears to have the greatest effect on transmissivity with those geonets having their channels oriented more in the direction of flow having higher transmissivities. Further testing is, however, needed to determine if geosynthetic use in leachate collection and detection systems is adequate.
Non-Singular Adversarial Robustness of Neural Networks
Creators: name: Tsai, Yu-Lin
name: Hsu, Chia-Yi
name: Yu, Chia-Mu
name: Chen, Pin-Yu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Adversarial robustness has become an emerging challenge for neural network owing to its over-sensitivity to small input perturbations. While being critical, we argue that solving this singular issue alone fails to provide a comprehensive robustness assessment. Even worse, the conclusions drawn from singular robustness may give a false sense of overall model robustness. Specifically, our findings show that adversarially trained models that are robust to input perturbations are still (or even more) vulnerable to weight perturbations when compared to standard models. In this paper, we formalize the notion of non-singular adversarial robustness for neural networks through the lens of joint perturbations to data inputs as well as model weights. To our best knowledge, this study is the first work considering simultaneous input-weight adversarial perturbations. Based on a multi-layer feed-forward neural network model with ReLU activation functions and standard classification loss, we establish error analysis for quantifying the loss sensitivity subject to $\ell_\infty$-norm bounded perturbations on data inputs and model weights. Based on the error analysis, we propose novel regularization functions for robust training and demonstrate improved non-singular robustness against joint input-weight adversarial perturbations.
Pandemi ile Mücadelede Açık Lisanslar
Creators: name: Holt, Ilkay
name: Madran, Orçun
Publisher: name: Zenodo
Year: 2021
Subjects: açık lisans, open licence, Creative Commons, pandemi, COVID-19, açık kültür, open culture

description: Bu sunum, Creative Commons Türkiye'nin Açık Kültür Toplulukları Buluşuyor etkinliği kapsamında yapılmıştır. COVID19 pandemisi, ilgili literatüre ve veri setlerine açık erişimin, yeniden kullanılabilirliğin ve araştırmaların hızla erişime sunulmasının önemini ortaya koydu. Ayrıca sağlık malzemelerinin ivedilikle, en az maliyetle ve yerelde üretimi için tasarımların paylaşılmasının ne kadar elzem olduğunu hatırlattı. Sunumda bu konular bağlamında pandemi ile mücadelede açık lisansların rolü ve nasıl kullanılacağı konuları ele alınmıştır.
AGN and star formation across cosmic time
Creators: name: Symeonidis, M.
name: Page, M. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the balance of power between stars and AGN across cosmic history, based on the comparison between the infrared (IR) galaxy luminosity function (LF) and the IR AGN LF. The former corresponds to emission from dust heated by stars and AGN, whereas the latter includes emission from AGN-heated dust only. We find that at all redshifts (at least up to z~2.5), the high luminosity tails of the two LFs converge, indicating that the most infrared-luminous galaxies are AGN-powered. Our results shed light to the decades-old conundrum regarding the flatter high-luminosity slope seen in the IR galaxy LF compared to that in the UV and optical. We attribute this difference to the increasing fraction of AGN-dominated galaxies with increasing total infrared luminosity (L_IR). We partition the L_IR-z parameter space into a star-formation and an AGN-dominated region, finding that the most luminous galaxies at all epochs lie in the AGN-dominated region. This sets a potential `limit' to attainable star formation rates, casting doubt on the abundance of `extreme starbursts': if AGN did not exist, L_IR>10^13 Lsun galaxies would be significantly rarer than they currently are in our observable Universe. We also find that AGN affect the average dust temperatures (T_dust) of galaxies and hence the shape of the well-known L_IR-T_dust relation. We propose that the reason why local ULIRGs are hotter than their high redshift counterparts is because of a higher fraction of AGN-dominated galaxies amongst the former group.
description: 18 pages; 15 figures; accepted for publication in MNRAS
A study of B->X(3872) K, with X(3872)->J/Psi pi+ pi-
Creators: name: The BABAR Collaboration
name: Aubert, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present measurements of the decays B+ -> X(3872) K+ and B0 -> X(3872) K0 with X(3872) -> Jpsi pi+ pi-. The data sample used, collected with the BABAR detector at the PEP-II e+e- asymmetric-energy storage ring, corresponds to 455 x 10^6 BBbar pairs. Branching fraction measurements of BF(B+ -> X(3872) K+) x BF(X(3872) -> Jpsi pi+ pi-) = (8.4 +/- 1.5 +/- 0.7) x 10^{-6} and BF(B0 -> X(3872) K0) x BF(X(3872) -> Jpsi pi+ pi- = (3.5 +/- 1.9 +/- 0.4) x 10^{-6} are obtained. We set an upper limit on the natural width of the X(3872) of Gamma < 3.3 MeV/c^2 at the 90% confidence level.
description: 7 pages, 2 postscript figures, submitted to Phys. Rev. D (Rapid Communications)
Multiphase field modeling of grain boundary migration mediated by emergent disconnections
Creators: name: Gokuli, Mahi
name: Runnels, Brandon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Knowledge about grain boundary migration is a prerequisite for understanding and ultimately modulating the properties of polycrystalline materials. Evidence from experiments and molecular dynamics (MD) simulations suggests that the formation and motion of disconnections is a mechanism for grain boundary migration. Here, grain boundary migration is modeled using a multiphase field model based on the principle of minimum dissipation potential with nonconvex boundary energy, along with a stochastic model for thermal nucleation of disconnection pairs. In this model, disconnections arise spontaneously in the presence of an elastic driving force, and that their motion mediates boundary migration. The effect is due to the fact that the formation of the disconnections pairs results in a stress concentration, causing the elastic driving force to exceed the threshold value and driving the propagation of the disconnection along the interface. The model is applied to study the propagation/annihilation of single disconnection pairs, the relaxation of a perturbed interface, and shear coupling at various temperatures. The results are consistent with the current understanding of disconnections, and capture the effect of thermal softening.
Additional file 1: of Feasibility of ipsilateral lower neck sparing irradiation for unilateral or bilateral neck node-negative nasopharyngeal carcinoma: systemic review and meta-analysis of 2, 521 patients
Creators: name: Huang, Cheng-Long
name: Xu, Cheng
name: Zhang, Yuan
name: Zhou, Guan-Qun
name: Mao, Yan-Ping
name: Liu, Qing
name: Sun, Ying
name: Ma, Jun
name: Tang, Ling-Long
Publisher: name: figshare
Year: 2018
Subjects: Medicine
Mathematical Sciences not elsewhere classified
Developmental Biology
Science Policy

description: Table S1. Quality assessment of eight retrospective studies using the modified Newcastle-Ottawa scale. Y = yes; N = no; U = unclear. Table S2. Quality assessment of one randomized controlled trial. Y = yes; U = unclear. Figure S1. Risk of bias graph: evaluation of risk of bias across all included studies. Figure S2. Risk of bias summary: evaluation of risk of bias of each included study. The green/yellow/red circles represent low/unclear/high risk of bias, respectively. (DOC 58 kb)
Multi-Feature Multi-Scale CNN-Derived COVID-19 Classification from Lung Ultrasound Data
Creators: name: Che, Hui
name: Radbel, Jared
name: Sunderram, Jag
name: Nosher, John L.
name: Patel, Vishal M.
name: Hacihaliloglu, Ilker
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The global pandemic of the novel coronavirus disease 2019 (COVID-19) has put tremendous pressure on the medical system. Imaging plays a complementary role in the management of patients with COVID-19. Computed tomography (CT) and chest X-ray (CXR) are the two dominant screening tools. However, difficulty in eliminating the risk of disease transmission, radiation exposure and not being costeffective are some of the challenges for CT and CXR imaging. This fact induces the implementation of lung ultrasound (LUS) for evaluating COVID-19 due to its practical advantages of noninvasiveness, repeatability, and sensitive bedside property. In this paper, we utilize a deep learning model to perform the classification of COVID-19 from LUS data, which could produce objective diagnostic information for clinicians. Specifically, all LUS images are processed to obtain their corresponding local phase filtered images and radial symmetry transformed images before fed into the multi-scale residual convolutional neural network (CNN). Secondly, image combination as the input of the network is used to explore rich and reliable features. Feature fusion strategy at different levels is adopted to investigate the relationship between the depth of feature aggregation and the classification accuracy. Our proposed method is evaluated on the point-of-care US (POCUS) dataset together with the Italian COVID-19 Lung US database (ICLUS-DB) and shows promising performance for COVID-19 prediction.
Null tests of the Standard Model at an International Super $B$ Factory
Creators: name: Gershon, Tim
name: Soni, Amarjit
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In light of the results from the B factories, which clearly show that the Cabibbo-Kobayashi-Maskawa mechanism is the dominant source of the observed CP violation in K and B physics, only small deviations due to sources of CP violation beyond the Standard Model are likely. Therefore, in the quest for New Physics, null tests of the Standard Model become increasingly important. Motivated by these considerations, we describe a number of approximate null tests of the Standard Model. These tests provide several theoretically clean approaches to searching for new physics in the B system. We find that in many cases, the requisite sensitivity can only be achieved with an International Super B Factory, with luminosity around 10^36 cm^-2 s^-1.
description: 16 pages. v2 updated after ICHEP2006. v3 published version
Quantum disordered state of magnetic charges in nanoengineered honeycomb lattice
Creators: name: Yumnam, George
name: Chen, Yiyao
name: Guo, Jiasen
name: Keum, Jong K.
name: Lauter, Valeria
name: Singh, Deepak K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A quantum magnetic state due to magnetic charges is never observed, even though they are treated as quantum mechanical variable in theoretical calculations. Here, we demonstrate the occurrence of a novel quantum disordered state of magnetic charges in nanoengineered magnetic honeycomb lattice of ultra-small connecting elements. The experimental research, performed using spin resolved neutron scattering, reveals a massively degenerate ground state, comprised of low integer and energetically forbidden high integer magnetic charges, that manifests cooperative paramagnetism at low temperature. The system tends to preserve the degenerate configuration even under large magnetic field application. It exemplifies the robustness of disordered correlation of magnetic charges in 2D honeycomb lattice. The realization of quantum disordered ground state elucidates the dominance of exchange energy, which is enabled due to the nanoscopic magnetic element size in nanoengineered honeycomb. Consequently, an archetypal platform is envisaged to study quantum mechanical phenomena due to emergent magnetic charges.
Neighbor selection and hitting probability in small-world graphs
Creators: name: Sandberg, Oskar
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 60C05 (Primary) 68R10, 68W20 (Secondary)

description: Small-world graphs, which combine randomized and structured elements, are seen as prevalent in nature. Jon Kleinberg showed that in some graphs of this type it is possible to route, or navigate, between vertices in few steps even with very little knowledge of the graph itself. In an attempt to understand how such graphs arise we introduce a different criterion for graphs to be navigable in this sense, relating the neighbor selection of a vertex to the hitting probability of routed walks. In several models starting from both discrete and continuous settings, this can be shown to lead to graphs with the desired properties. It also leads directly to an evolutionary model for the creation of similar graphs by the stepwise rewiring of the edges, and we conjecture, supported by simulations, that these too are navigable.
description: Published in at http://dx.doi.org/10.1214/07-AAP499 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Chemically driven electron tunnelling pumps
Creators: name: Goychuk, Igor
Publisher: name: arXiv
Year: 2006
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The simplest mechanism for molecular electron pumps is discussed which is based on nonadiabatic electron tunnelling and nonequilibrium conformational fluctuations. Such fluctuations can be induced, e.g. by random binding of negatively charged ATP molecules to the electron-transferring molecular complex, their subsequent hydrolysis and the products dissociation. The pumping rate can be controlled by the ATP concentration in solution. Depending on the model parameters there may exist a critical ATP concentration for the pump to function. Alternatively, nonequilibrium fluctuations can be induced by externally applied stochastic electric fields. For realistically chosen parameters, the mechanism is shown to be robust and highly efficient.
Glulam connections using epoxy glued-in rebars
Creators: name: Wiktor, Robert
Publisher: name: University of British Columbia
Year: 2009

description: This thesis is a part of the research aimed at developing a reliable moment resisting connection method for timber structures based on gluing the reinforcing bars to the wood. The aims of this thesis are: to investigate the influence of atmospheric factors (such as moisture and temperature) on the performance of the glued-in rebar joints, to examine the possibility of increasing the bearing resistance of the glulam (compression per pendicular to the grain) by gluing the rebars perpendicularly to the grain, to implement the glued-in rebar technique in creating a moment resisting joint of a statically indeterminate glulam frame for a multi-storey building, to provide the designers of timber buildings with information on how to design the glued-in rebar joints, to verify the possible savings derived from the use ofthe moment resistingjoints in glulam frames. The findings of this research are: the glued-in rebar connection may be considered reliable in the temperature and moisture conditions which can occur in the building; the connection was found to be influenced by those conditions to a lesser degree than the glulam structure itself, the gluing of the rebars under the bearing plates can increase the compressive resistance of the glulam in the direction perpendicular to the grain by 100%, the rebars glued perpendicularly to the grain have an additional effect of increasing the shear capacity of the glulam members, full size beam-to-columnjoints using the glued-in rebar idea were tested; the connection proved to have bending and shear resistance equal or greater than the resistance of the glulam members which were joined, a ductile behaviour of the beam-to-column connections was observed prior to the failures, a set ofguidelines was developed to facilitate the design ofglued-in rebar joints in the multi-storey timber frames, by using moment resisting glued-in rebar connections it is possible to save 15% of the glulam volume versus the traditional hinged frame design.
Amphipoda Latreille 1816
Creators: name: Paz-Ríos, Carlos E.
name: Pech, Daniel
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda

description: Order Amphipoda Latreille, 1816  Suborder Senticaudata Lowry & Myers, 2013
description: Published as part of Paz-Ríos, Carlos E. & Pech, Daniel, 2019, Gammaropsis elvirae sp. nov., a widely distributed amphipod (Amphipoda: Photidae) in the Yucatan Shelf, with ecological comments and a key for the genus in tropical America, pp. 359-371 in Zootaxa 4555 (3) on page 360, DOI: 10.11646/zootaxa.4555.3.5, http://zenodo.org/record/2624481
IPHAS discoveries of young stars towards Cyg OB2 and its southern periphery
Creators: name: Vink, Jorick S.
name: Drew, Janet E.
name: Steeghs, Danny
name: Wright, Nick J.
name: Martin, Eduardo L.
name: Gaensicke, Boris T.
name: Greimel, Robert
name: Drake, Jeremy
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the discovery of over 50 strong Halpha emitting objects towards the large OB association Cyg OB2 and the HII region DR 15 on its southern periphery. This was achieved using the INT Photometric Halpha Survey of the Northern Galactic Plane (IPHAS), combined with follow-up spectroscopy using the MMT multi-object spectrometer HectoSpec. We present optical spectra, supplemented with optical r', i' and Halpha photometry from IPHAS, and near-infrared J, H, and K photometry from 2MASS. The position of the objects in the (J - H) versus (H - K) diagram strongly suggests most of them are young. Many show CaII IR triplet emission indicating that they are in a pre-main sequence phase of evolution of T Tauri and Herbig Ae nature. Among these, we have uncovered pronounced clustering of T Tauri stars roughly a degree south of the centre of Cyg OB2, in an arc close to the HII region DR 15, and the radio ring nebula G79.29+0.46, for which we discuss its candidacy as a luminous blue variable (LBV). The emission line objects toward Cyg OB2 itself could be the brightest most prominent component of a population of lower mass pre-main sequence stars that has yet to be uncovered. Finally, we discuss the nature of the ongoing star formation in Cyg OB2 and the possibility that the central OB stars have triggered star formation in the periphery.
description: Accepted by MNRAS, 12 pages, 7 figures
Multi-Group Multicast Beamforming by Superiorized Projections onto Convex Sets
Creators: name: Fink, Jochen
name: Cavalcante, Renato L. G.
name: Stanczak, Slawomir
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: Information Theory (cs.IT)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In this paper, we propose an iterative algorithm to address the nonconvex multi-group multicast beamforming problem with quality-of-service constraints and per-antenna power constraints. We formulate a convex relaxation of the problem as a semidefinite program in a real Hilbert space, which allows us to approximate a point in the feasible set by iteratively applying a bounded perturbation resilient fixed-point mapping. Inspired by the superiorization methodology, we use this mapping as a basic algorithm, and we add in each iteration a small perturbation with the intent to reduce the objective value and the distance to nonconvex rank-constraint sets. We prove that the sequence of perturbations is bounded, so the algorithm is guaranteed to converge to a feasible point of the relaxed semidefinite program. Simulations show that the proposed approach outperforms existing algorithms in terms of both computation time and approximation gap in many cases.
Το βυζαντινό ξίφος. Τυπολογία και Διάκοσμος
Creators: name: Μανιώτης, Ερρίκος Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Βυζαντινό ξίφος
Τυπολογία-Διάκοσμος
Byzantine sword
Typology-Iconography

description: Σκοπός της παρούσας διπλωματικής εργασίας ήταν η μελέτη του βυζαντινού ξίφους, μέσα από τα αρχαιολογικά τεκμήρια και τη σύγκριση αυτών με τα εικονογραφικά παραδείγματα. Εξετάσαμε και οργανώσαμε το αρχαιολογικό υλικό μας σε έναν προτεινόμενο τυπολογικό κατάλογο, σύμφωνα με τα επιμέρους χαρακτηριστικά του ξίφους (προφυλακτήρας, λαβή, σφαίρωμα), ο οποίος δε ήταν διαθέσιμος μέχρι στιγμής για το υλικό της Ανατολής, παρά για τα ξίφη της Δύσης. Στη συνέχεια, παρουσιάσαμε τα μέχρι τώρα προβλήματα που ανακύπτουν στην έρευνα του βυζαντινού ξίφους, τα οποία επισημαίνονται και από τους μελετητές του μεσαιωνικού οπλισμού και αφορούν στην μη εκετεταμένη μελέτη του βυζαντινού ξίφους, ζητήματα τα οποία και προσπαθήσαμε να τα υπερκεράσουμε, ώστε να εξαχθούν τα απαραίτητα συμπεράσματα. Ακόμη, στην εργασία προσθέσαμε και μη δημοσιευμένο αρχαιολογικό υλικό, ενώ προχωρήσαμε και σε ορισμένες προτάσεις αναχρονολόγησης ενός δημοσιευμένου υλικού, αλλά ελλιπώς μελετημένου, το οποίο δεν είχε αντιμετωπίσει στο σύνολό του μέχρι σήμερα η επιστημονική έρευνα. Επιπλέον, καταλήξαμε στο συμπέρασμα πως, η συγκριτική μελέτη του αρχαιολογικού με το εικονογραφικό υλικό, οδηγεί στην ύπαρξη αποκλίσεων ανάμεσα στις δύο αυτές κατηγορίες, με την εικονογραφία να αναπαράγει εξιδανικευμένους τύπους όπλων και ως εκ τούτου να μην προσφέρεται ως αξιόπιστο πεδίο σύγκρισης.
description: The aim of the present master thesis was the study of the byzantine sword. We examined the archaeological material and we compared it with the iconographical examples. Then, we proposed and organized the archaeological findings in a typological catalog, according to swords’ characteristics (guard, handle, pommel), which was available only for the western material. Moreover, the problems appeared in byzantine sword study were presented, which are mentioned also by the studiers of medieval weaponry. We tried to overcome the aforementioned problems, in order to conduct the necessary outcomes. Furthermore, we added a non-published material and we proposed new datings of an already published material, which had not been studied until now. Finally, we found that diversions may occur between the archaeological material and the iconographical material, because the latter generates sophisticated types of weapons and lacks of reliability.
Lepton asymmetry in the primordial gravitational wave spectrum
Creators: name: Ichiki, Kiyotomo
name: Yamaguchi, Masahide
name: Yokoyama, Jun'Ichi
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Effects of neutrino free streaming is evaluated on the primordial spectrum of gravitational radiation taking both neutrino chemical potential and masses into account. The former or the lepton asymmetry induces two competitive effects, namely, to increase anisotropic pressure, which damps the gravitational wave more, and to delay the matter-radiation equality time, which reduces the damping. The latter effect is more prominent and a large lepton asymmetry would reduce the damping. We may thereby be able to measure the magnitude of lepton asymmetry from the primordial gravitational wave spectrum.
description: 14 pages, 5 figures
Phenomenological description of quantum gravity inspired modified classical electrodynamics
Creators: name: Montemayor, R.
name: Urrutia, Luis F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We discuss a large class of phenomenological models incorporating quantum gravity motivated corrections to electrodynamics. The framework is that of electrodynamics in a birefringent and dispersive medium with non-local constitutive relations, which are considered up to second order in the inverse of the energy characterizing the quantum gravity scale. The energy-momentum tensor, Green functions and frequency dependent refraction indices are obtained, leading to departures from standard physics. The effective character of the theory is also emphasized by introducing a frequency cutoff. The analysis of its effects upon the standard notion of causality is performed, showing that in the radiation regime the expected corrections get further suppressed by highly oscillating terms, thus forbiding causality violations to show up in the corresponding observational effects.
description: 14 pages, to be published in Obregon Festschrift 2006, Gen. Rel. and Grav