cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Βελτίωση ευχρηστίας της συσκευής αναγνώρισης συναισθημάτων:
Creators: name: Στυλιανίδης, Παναγιώτης Στυλιανού
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Συναισθήματα
Επικοινωνία Ανθρώπου-υπολογιστή
Αξιολόγηση ευχρηστίας
Affective Computing
Human Computer Interaction (HCI)
Usability Evaluation

description: Σε αυτή την εργασία ο στόχος μας είναι να παρουσιάζουμε τα βήματα και τις μεθόδους που χρησιμοποιήσαμε για να δημιουργήσουμε μια πρότυπη συσκευή βιο-ανάδρασης για αναγνώριση συναισθημάτων και κυρίως να αξιολογήσουμε την χρησιμότητα και ευχρηστία της από την πλευρά επικοινωνίας ανθρώπου-υπολογιστή σε πραγματικές συνθήκες. Οι μέθοδοι που χρησιμοποιήσαμε για την ανάλυση και μοντελοποίηση των χρηστών περιέχουν συνεντεύξεις με ειδικούς και χρήστες καθώς και ερωτηματολόγια για τα χαρακτηριστικά που πιστεύαν ότι η συσκευή θα έπρεπε να ενσωματώνει. Οι μέθοδοι που χρησιμοποιήθηκαν για την αξιολόγηση της ευχρηστίας της πρότυπης συσκευής είναι τα μοντέλα TRAM και QUIS και τα δεδομένα αποκτήθηκαν από το δείγμα με το μέσο του ερωτηματολογίου. Τα αποτελέσματα της αξιολόγησης υποδεικνύουν ότι η αισιοδοξία των συμμετεχόντων είχε μεγάλη επιρροή στην «αντιληπτή ευκολία χρήσης» της συσκευής και ότι η πλειοψηφία των αντιδράσεων απέναντι στην συσκευή ήταν θετικές, δείχνοντας ότι οι περισσότεροι συμμετέχοντες είχαν μια πλούσια διαδραστική εμπειρία με τη χρήση της συσκευής.
description: In this assignment our goal is to present the steps and methods used to create a prototype bio-feedback device for emotion detection and mainly to evaluate its usability and usefulness from an HCI standpoint in real life situations. Methods used to analyze and model users include expert and user interviews as well as questionnaires on the features they would think the device should incorporate. Methods used for the evaluation of the prototype include the TRAM model and the QUIS model for usability evaluation and were delivered to the sample via the medium of questionnaire. The results of the evaluation indicate that the optimism of the participants had a strong influence to the “perceived ease of use” attitude concerning the device and that the majority of reactions using the bio-feedback system were quite high, showing that most of the participants had a rich interactive experience using the system.
Instabilities in Zakharov Equations for Laser Propagation in a Plasma
Creators: name: Colin, Thierry
name: Metivier, Guy
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: F.Linares, G.Ponce, J-C.Saut have proved that a non-fully dispersive Zakharov system arising in the study of Laser-plasma interaction, is locally well posed in the whole space, for fields vanishing at infinity. Here we show that in the periodic case, seen as a model for fields non-vanishing at infinity, the system develops strong instabilities of Hadamard's type, implying that the Cauchy problem is strongly ill-posed.
Using Twitter to estimate Net Promoter Score (NPS)
Creators: name: Matkar, Gautam
name: Lizarraga, Rene
name: Jisha Varghese
Publisher: name: Zenodo
Year: 2018
Subjects: NPS, net promoter score, NPS estimator, brand loyalty, customer loyalty, affinity score, machine learning, logistic regression, hyperparameter tuning

description: This research paper was completed in fulfillment of requirements for the Social Media mining course as a part of the Master’s in Data Science program at Indiana University-Bloomington in Dec 2018. Companies invest significant resources to improve and maintain customer loyalty. An effective way to measure customer loyalty is a
 single-question survey called Net Promoter Score (NPS). Although this survey is valuable for companies who aim to improve or maintain customer loyalty, it can be expensive to administer and can cause survey fatigue for customers. We propose a low-cost estimate for NPS based on Twitter data.
QCD Corrections to K-Kbar Mixing in R-symmetric Supersymmetric Models
Creators: name: Blechman, Andrew E.
name: Ng, Siew-Phang
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The leading-log QCD corrections to K-Kbar mixing in R-symmetric supersymmetric models are computed using effective field theory techniques. The spectrum topology where the gluino is significantly heavier than the squarks is motivated and focused on. It is found that, like in the MSSM, QCD corrections can tighten the kaon mass difference bound by roughly a factor of three. CP violation is also briefly considered, where QCD corrections can constrain phases to be as much as a factor of ten smaller than the uncorrected value.
description: 11 pages, 11 pdf-figures; updated acknowledgments and references, clarified relationship to Ref[17], clarified CP-violation section
Learning to Isolate Muons
Creators: name: Collado, Julian
name: Bauer, Kevin
name: Witkowski, Edmund
name: Faucett, Taylor
name: Whiteson, Daniel
name: Baldi, Pierre
Publisher: name: arXiv
Year: 2021
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Distinguishing between prompt muons produced in heavy boson decay and muons produced in association with heavy-flavor jet production is an important task in analysis of collider physics data. We explore whether there is information available in calorimeter deposits that is not captured by the standard approach of isolation cones. We find that convolutional networks and particle-flow networks accessing the calorimeter cells surpass the performance of isolation cones, suggesting that the radial energy distribution and the angular structure of the calorimeter deposits surrounding the muon contain unused discrimination power. We assemble a small set of high-level observables which summarize the calorimeter information and close the performance gap with networks which analyze the calorimeter cells directly. These observables are theoretically well-defined and can be studied with collider data.
description: Version accepted for publication at JHEP
title: Medical Apps in der Medizinprodukte-Anzeigen-Datenbank des DIMDI
Creators: name: Steuer, Susanne
name: Schweizer, Simon Tobias
name: Heil, Andreas
Publisher: name: German Medical Science GMS Publishing House
Year: 2021
Subjects: subject: medical device regulation
subject: medical app
subject: DIMDI
subject: 610 Medical sciences; Medicine

description: Hintergrund: Mit dem Ende der Übergangsfrist der EU-Medizinprodukteverordnung 2017/745 (MDR) am 26.05.2020 wird die Klassifizierung von Software als Medizinprodukt verschärft [ref:1]. Hersteller müssen sich daher Gedanken über eine mögliche Einstufung ihrer App[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 65th Annual Meeting of the German Association for Medical Informatics, Biometry and Epidemiology (GMDS), Meeting of the Central European Network (CEN: German Region, Austro-Swiss Region and Polish Region) of the International Biometric Society (IBS)
title: Wie kann Pflegetechnologie bedarfsgerecht ausgewählt werden? Praxisbericht eines partizipativen Ansatzes
Creators: name: Hechtel, Nicole
name: Klawunn, Ronny
name: Mazhari, Reza
name: Schmeer, Regina
name: Krückeberg, Jörn
Publisher: name: German Medical Science GMS Publishing House
Year: 2021
Subjects: subject: Pflegetechnologie
subject: Partizipation
subject: Pflegeinformatik
subject: 610 Medical sciences; Medicine

description: 1. Hintergrund: Das Projekt Pflegepraxiszentrum Hannover (PPZ Hannover) bringt technische Innovationen zur Unterstützung von Pflegefachpersonen auf eine unfallchirurgische Station (Projektstation). Im Rahmen eines partizipativen Einführungskonzeptes werden Pflegefachpersonen der Projektstation[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 65th Annual Meeting of the German Association for Medical Informatics, Biometry and Epidemiology (GMDS), Meeting of the Central European Network (CEN: German Region, Austro-Swiss Region and Polish Region) of the International Biometric Society (IBS)
Distribution of Microscopic Energy Flux in Equilibrium State
Creators: name: Shimada, Takashi
name: Ogushi, Fumiko
name: Ito, Nobuyasu
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The distribution function P(j) of the microscopic energy flux, j, in equilibrium state is studied. It is observed that P(j) has a broad peak in small j regime and a stretched-exponential decay for large j. The peak structure originates in a potential advection term and energy transfer term between the particles. The stretched exponential tail comes from the momentum energy advection term.
description: 5 pages, 2 figures
title: Die HIRO Forschungsdatenbank
Creators: name: Ulrich, Matthias
name: Kudak, Andreas
name: Debus, Jürgen
name: Bougatf, Nina
Publisher: name: German Medical Science GMS Publishing House
Year: 2021
Subjects: subject: DICOM
subject: HL7
subject: PACS
subject: Telemedizin
subject: Radioonkologie
subject: 610 Medical sciences; Medicine

description: Hintergrund: Patienten, die eine Strahlentherapie erhalten, haben oft eine lange und komplexe medizinische Vorgeschichte, die zu einer Vielzahl unstrukturierter medizinischer Daten in unterschiedlichsten klinischen Systemen führt. Um diese Daten effizient für die Forschung nutzen zu können,[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 65th Annual Meeting of the German Association for Medical Informatics, Biometry and Epidemiology (GMDS), Meeting of the Central European Network (CEN: German Region, Austro-Swiss Region and Polish Region) of the International Biometric Society (IBS)
On the Poisson Approximation to Photon Distribution for Faint Lasers
Creators: name: Hu, Yucheng
name: Peng, Xiang
name: Li, Tiejun
name: Guo, Hong
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: It is proved, that for a certain kind of input distribution, the strongly binomially attenuated photon number distribution can well be approximated by a Poisson distribution. This explains why we can adopt poissonian distribution as the photon number statistics for faint lasers. The error of such an approximation is quantitatively estimated. Numerical tests are carried out, which coincide with our theoretical estimations. This work lays a sound mathematical foundation for the well-known intuitive idea which has been widely used in quantum cryptography.
Οι σχέσεις με τους συνομηλίκους των μαθητών με μαθησιακές δυσκολίες που φοιτούν σε τμήματα ένταξης δημοτικών σχολείων:
Creators: name: Αγγελάκη, Αικατερίνη Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Σχέσεις συνομηλίκων
Νοητική ανεπάρκεια
Μαθησιακές δυσκολίες
Peer relations
Intellectual disability
Learning difficulties

description: Ο απώτερος στόχος της παρούσας έρευνας είναι να εντοπίσει εάν υπάρχουν διαφορές μεταξύ μαθητών με νοητική ανεπάρκεια και μαθητών με μαθησιακές δυσκολίες που φοιτούν σε τμήματα ένταξης δημοτικών σχολείων όσον αφορά τόσο στο μαθησιακό όσο και στο κοινωνικό επίπεδο. Η ερευνητική υπόθεση που διατυπώθηκε ήταν ότι οι μαθητές με νοητική ανεπάρκεια αναμένεται να βρίσκονται σε δυσμενέστερη θέση σε σχέση με τους συνομηλίκους τους με μαθησιακές δυσκολίες τόσο στο μαθησιακό όσο και στο κοινωνικό επίπεδο. Το δείγμα της έρευνας αποτέλεσαν 120 μαθητές με νοητική ανεπάρκεια, μαθησιακές δυσκολίες και τυπικής ανάπτυξης. Για τη διερεύνηση της ερευνητικής υπόθεσης χρησιμοποιήθηκε το «Ερωτηματολόγιο Σχέσεων Συνομηλίκων» το οποίο απαντήθηκε στα πλαίσια δομημένης συνέντευξης από τους εκπαιδευτικούς των μαθητών. Τα αποτελέσματα της παρούσας έρευνας έδειξαν ότι οι μαθητές με νοητική ανεπάρκεια είχαν χαμηλότερη βαθμολογία σε σχέση με τους μαθητές με μαθησιακές δυσκολίες στη συμμετοχή σε συλλογικές, μαθησιακές δραστηριότητες, στη συμμετοχή σε συλλογικές, μη μαθησιακές δραστηριότητες, στις φιλικές σχέσεις-παρέες, καθώς και στη διαχείριση προβλημάτων-αρνητικών αντιδράσεων. Τα αποτελέσματα επιβεβαίωσαν την αρχική μας υπόθεση ότι οι μαθητές με νοητική ανεπάρκεια βρίσκονται σε δυσμενέστερη θέση σε σχέση με τους μαθητές με μαθησιακές δυσκολίες όσον αφορά στο μαθησιακό και κοινωνικό επίπεδο.
description: This study aims to investigate whether there are differences in the academic and social skills of intellectual disabled students and students with learning difficulties placed in primary schools resource rooms. The research hypothesis formulated was that students with intellectual disability are expected to be at a disadvantage compared with their peers with learning difficulties both in academic and social skills. The sample consisted of 120 students with intellectual disability, learning disabilities and typical development. To investigate the research hypothesis we used the "Peer Relations Questionnaire" which was answered within structured interviews with teachers of students. The results of the present study indicated that students with intellectual disability had lower scores compared with students with learning difficulties in participation in academic and non-academic activities, in friendships relations and in conflict resolution. The results confirmed our initial hypothesis that students with mental disability are at a disadvantage compared with students with learning difficulties in academic and social skills.
A discrete invitation to quantum filtering and feedback control
Creators: name: Bouten, Luc
name: van Handel, Ramon
name: James, Matthew R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: Optimization and Control (math.OC)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 93E11, 93E15, 93E20, 81P15, 81S25, 34F05

description: The engineering and control of devices at the quantum-mechanical level--such as those consisting of small numbers of atoms and photons--is a delicate business. The fundamental uncertainty that is inherently present at this scale manifests itself in the unavoidable presence of noise, making this a novel field of application for stochastic estimation and control theory. In this expository paper we demonstrate estimation and feedback control of quantum mechanical systems in what is essentially a noncommutative version of the binomial model that is popular in mathematical finance. The model is extremely rich and allows a full development of the theory, while remaining completely within the setting of finite-dimensional Hilbert spaces (thus avoiding the technical complications of the continuous theory). We introduce discretized models of an atom in interaction with the electromagnetic field, obtain filtering equations for photon counting and homodyne detection, and solve a stochastic control problem using dynamic programming and Lyapunov function methods.
description: 76 pages, 12 figures. A PDF file with high resolution figures can be found at http://minty.caltech.edu/papers.php
Υλοποίηση σε FPGA συστήματος επεξεργασίας βίντεο σε πραγματικό χρόνο:
Creators: name: Κωσταρά, Ελευθερία Αριστοτέλη
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Επεξεργασία βίντεο
Canny
FPGA
Video Processing

description: Στην παρούσα διπλωματική εργασία μελετάται το Spartan-6 Industrial Video Processing Kit και συγκεκριμένα το Camera Frame Buffer Project. Πρόκειται για μια εφαρμογή η οποία ενσωματώνει ένα αισθητήρα εικόνας, ικανό και για τη λήψη βίντεο. Επιπλέον, γίνεται μελέτη των επιμέρους κομματιών που συνθέτουν το σύστημα καθώς και των IP cores στη γραμμή επεξεργασίας της εικόνας. Σκοπός της εργασίας είναι να προστεθεί στη γραμμή επεξεργασίας της εικόνας ο αλγόριθμος ανίχνευσης αιχμών του Canny. Έτσι, σχεδιάζεται ένα IP core που εφαρμόζει αυτόν τον αλγόριθμο στα στοιχεία της εικόνας. Το IP core σχεδιάζεται για χρήση με το λογισμικό EDK της Xilinx. Η ανάγκη του αλγορίθμου για γκρι εικόνα στην είσοδο του, οδηγεί στη μελέτη και προσθήκη των μετατροπέων RGB σε YCrCb και YCrCb σε RGB. Τέλος, η προσθήκη ενός διαχωριστή στο δίαυλο XSVI και ενός πολυπλέκτη δίνει τη δυνατότητα να επιλεχθεί ως έξοδο στην οθόνη, είτε η κανονική εικόνα είτε η επεξεργασμένη από τον Canny εικόνα. Τα αποτελέσματα επιβεβαιώνουν την ορθή λειτουργία του συστήματος.
description: In the present thesis, the Spartan-6 Industrial Video Processing Kit is examined, which contains four main projects. The Camera Frame Project which is tested is one of those projects. The main idea is the implementation of an image sensor capable of live streaming. Furthermore, all components of the hardware system and the IP cores in the video processing pipeline are also examined. The purpose of this thesis is the insertion of Canny Edge Detection algorithm in the processing pipeline. An IP core is designed to implement this algorithm in image components. The IP core is designed to be used in EDK of Xilinx. Due to the requirements of a grayscale input for this algorithm, the addition of the RGB to YCrCb and YCrCb to RGB converters is necessary. Finally, the inclusion of a XSVI bus duplicator and a multiplexer gives the system the option to choose between normal image and Canny image in the video stream. The usage of a FSL bus gives the system the capability to set values of high and low thresholds of Canny algorithm through terminal while the system is running. The results confirm the required operation of the system.
Ανάπτυξη αλγορίθμου συρραφής εικόνων και υλοποίηση από ενσωματωμένο σύστημα σε FPGA.:
Creators: name: Πούλιος, Σταμάτιος Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Επεξεργασία εικόνας
Συρραφή εικόνων
Image Processing
Image stitching
FPGA

description: Αντικείμενο της παρούσσας διπλωματικής εργασίας είναι η ανάπτυξη αλγορίθμου συρραφής εικόνων (image stitching) καθώς και η εφαρμογή του σε ενωματωμένο σύστημα υλοποιήσιμο σε fpga. Ώς συρραφή εικόνων ορίζεται η διαδικασία κατά την οποία δύο ή περισσότερες εικόνες, οι οποίες μοιράζονται ανα ζέυγη μία κοινή περιοχή, ενώνονται σχηματίζοντας μία εικόνα μεγαλύτερου εύρους. Σκοπός είναι η σε βάθος μελέτη της διαδικασίας επεξεργασίας εικόνας, καθώς και η εξειδίκευση στη χρήση των εργαλείων της Xilinx. Αρχικά αναφέρεται η θεωρία της τεχνικής συρραφής εικόνων, στη συνέχεια αναλύονται τα στάδια του αλγορίθμου καθώς και τα βασικά σημεία της υλοποίησής του. Τέλος παρουσιάζονται τα τελικά συμπεράσματα αναφορικά με τα προβλήματα που παρουσιάζονται και τις προτεινόμενες λύσεις και βελτιώσεις.
description: This thesis concerns the development and implementation of an image stitching algorithm on an fpga embedded system. Image stitching is the process of stitching two or more images, in order to produce an image with greater field of view. The images should have fields of view that partially overlap. The main goal is the in depth study of image processing as well as gaining expertise on Xiling design tools. The first chapter is an introduction on image stitching, while chapter 2 highlights the fundamentals of image processing. Next, the steps of the algorithm are detailed and the most notable concepts of the implementation are presented. In conclusion the main problems are indicated along with possible solutions and future improvements.
title: Chancen von Open-Source-Software am Beispiel der Pseudonymisierungslösung „Mainzelliste”
Creators: name: Riegel, Jürgen
name: Ben Amor, Moanes
name: Brenner, Torben
name: Drepper, Johannes
name: Franke, Martin
name: Grün, Manuel
name: Hamacher, Kay
name: Hund, Hauke
name: Knopp, Cornelius
name: Kussel, Tobias
name: Lemmer, Matthias
name: Parciak, Marcel
name: Rahm, Erhard
name: Rohde, Florens
name: Sax, Ulrich
name: Schepers, Josef
name: Sehili, Ziad
name: Suhr, Markus
name: Panholzer, Torsten
name: Lablans, Martin
Publisher: name: German Medical Science GMS Publishing House
Year: 2021
Subjects: subject: Open-Source-Software
subject: Continuous Integration
subject: Pseudonymisierungslösung „Mainzelliste”
subject: 610 Medical sciences; Medicine

description: Hintergrund: Die Mainzelliste, eine IT-Lösung zur Pseudonymisierung und zum Identitätsmanagement [ref:1], wird nicht nur in einer Vielzahl von Projekten und Einrichtungen genutzt, sondern auch durch mehrere Standorte weiterentwickelt. Eine solche Software-Entwicklung durch die engagierte[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 65th Annual Meeting of the German Association for Medical Informatics, Biometry and Epidemiology (GMDS), Meeting of the Central European Network (CEN: German Region, Austro-Swiss Region and Polish Region) of the International Biometric Society (IBS)
Le Corbusier, negotiating modernity: representing Algiers, 1930-42
Creators: name: McKay, Frances Sherry
Publisher: name: University of British Columbia
Year: 2009

description: The dissertation investigates the six plans devised by Le Corbusier for Algiers between 1930 and 1942, situating them within the representations given to the French presence in Algiers and their volatile political and cultural milieu. The problem was to identify these canonized, avant-garde plans as particular forms given to a specific view of colonialism. In relating them to colonialism and its cognates race, gender and nationalism, it was also necessary to distinguish their perceived difference from those more readily associated with French colonial policy and thus account for Le Corbusier’s failure to ultimately wrest the commision from the competing beaux arts designers. The task was to calculate the conditions and constraints under which the meanings given to these plans could emerge, take effect and have consequences. The plans and their amplifcation in exhibitions, journalism, paintings, sketches, literature and film are analysed as representations given to the various discourses through which both modernism and colonialism circulated. The intersection of these discourses with others on orientalism, folklore and most importantly gender and nationalism are plotted so as to position these plans wthtin the discursive map by which Algiers was known in the Metropole and in Algeria. Post-colonial histories are used to offset the archival gaps in both the personal archive of the architect and in national insititutions. The clissertatation concludes that Le Corbusier’s canonical avant-garde plans did participate in colonialism. However, that participation can be distinguished from that of the competing plans not only according to aesthetic considerations of formal vocabulary and spatial arrangement but also according to the representation which they each presented of the nation--the interrelationship of aesthetic vision and political vision being essential. Significantly, Le Corbusier’s repeated reference to the women of Algiers through postcard collections and sketches, his feminization of the Algiers landscape or fascination with the interiors and terraces of Moslem family dwellings and growing interest in providing them with contemporary homes can be related to the problematic position of Moslem women in the defmition given to the nation, be it a faltering French nation or a nascent Moslem Algerian one.
A gravity-independent powder-based additive manufacturing process tailored for space applications
Creators: name: D'Angelo, Olfa
name: Kuthe, Felix
name: Liu, Szu-Jia
name: Wiedey, Raphael
name: Bennett, Joe M.
name: Meisnar, Martina
name: Barnes, Andrew
name: Kranz, W. Till
name: Voigtmann, Thomas
name: Meyer, Andreas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The future of space exploration missions will rely on technologies increasing their endurance and self-sufficiency, including for manufacturing objects on-demand. We propose a process for handling and additively manufacturing powders that functions independently of the gravitational environment and with no restriction on feedstock powder flowability. Based on a specific sequence of boundary loads applied to the granular packing, powder is transported to the printing zone, homogenized and put under compression to increase the density of the final part. The powder deposition process is validated by simulations that show the homogeneity and density of deposition to be insensitive to gravity and cohesion forces within the DEM model. We further provide an experimental proof of concept of the process by successfully 3D printing parts on-ground and in weightlessness, on parabolic flight. Powders exhibiting high and low flowability are used as model feedstock material to demonstrate the versatility of the process, opening the way for additive manufacturing of recycled material.
Central extensions of Steinberg Lie superalgebras of small rank
Creators: name: Chen, Hongjia
name: Gao, Yun
name: Shang, Shikui
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Algebra (math.QA)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 17B55, 17B60

description: It was shown by A.V.Mikhalev and I.A.Pinchuk in [MP] that the second homology group $H_2(\st)$ of the Steinberg Lie superalgebra $\st$ is trivial for $m+n\geq 5$. In this paper, we will work out $H_2(\st)$ explicitly for $m+n=3, 4$.
description: 23 pages
Barrier functions for Pucci-Heisenberg operators and applications
Creators: name: Cutri, Alessandra
name: Tchou, Nicoletta
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35D10 35G20 35H05 35J25 35J70

description: The aim of this article is the explicit construction of some barrier functions ("fundamental solutions") for the Pucci-Heisenberg operators. Using these functions we obtain the continuity property, up to the boundary, for the viscosity solution of fully non-linear Dirichlet problems on the Heisenberg group, if the boundary of the domain satisfies some regularity geometrical assumptions (e.g. an exterior Heisenberg-ball condition at the characteristic points). We point out that the knowledge of the fundamental solutions allows also to obtain qualitative properties of Hadamard, Liouville and Harnack type.
Nonexponential decoherence and momentum subdiffusion in a quantum Lévy kicked rotator
Creators: name: Schomerus, Henning
name: Lutz, Eric
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We investigate decoherence in the quantum kicked rotator (modelling cold atoms in a pulsed optical field) subjected to noise with power-law tail waiting-time distributions of variable exponent (Levy noise). We demonstrate the existence of a regime of nonexponential decoherence where the notion of a decoherence rate is ill-defined. In this regime, dynamical localization is never fully destroyed, indicating that the dynamics of the quantum system never reaches the classical limit. We show that this leads to quantum subdiffusion of the momentum, which should be observable in an experiment.
description: 4 pages, 1 figure
On the extreme rays of the cone of $3\times 3$ quasiconvex quadratic forms: Extremal determinats vs extremal and polyconvex forms
Creators: name: Harutyunyan, Davit
name: Hovsepyan, Narek
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: This work is concerned with the study of the extreme rays of the convex cone of $3\times 3$ quasiconvex quadratic forms (denoted by ${\cal C}_3$). We characterize quadratic forms $f\in {\cal C}_3,$ the determinant of the acoustic tensor of which is an extremal polynomial, and conjecture/discuss about other cases. We prove that in the case when the determinant of the acoustic tensor of a form $f\in {\cal C}_3$ is an extremal polynomial other than a perfect square, then the form must itself be an extreme ray of ${\cal C}_3;$ when the determinant is a perfect square, then the form is either an extreme ray of ${\cal C}_3$ or polyconvex; and finally, when the determinant is identically zero, then the form $f$ must be polyconvex. The zero determinant case plays an important role in the proofs of the other two cases. We also make a conjecture on the extreme rays of ${\cal C}_3,$ and discuss about weak and strong etremals of ${\cal C}_d$ for $d\geq 3.$ where it turns out that several properties of ${\cal C}_3$ do not hold for ${\cal C}_d$ for $d>3,$ and thus case $d=3$ is special. These results recover all previously known results (to our best knowledge) on examples of extreme points of ${\cal C}_3$ that were proved to be such. Our results also improve the ones proven by the first author and Milton [20].
description: 25 pages. Mistake on page 20 fixed
title: Gebrauchstauglichkeit von Automatisierten Externen Defibrillatoren (AED): Eine randomisierte, zweiarmige Simulatorstudie (Ease4Life)
Creators: name: Klausen, Andreas
name: Coldewey, Beatrice
name: Otto-Sobotka, Fabian
name: Röhrig, Rainer
name: Lipprandt, Myriam
Publisher: name: German Medical Science GMS Publishing House
Year: 2021
Subjects: subject: defibrillators
subject: ergonomics
subject: patient safety
subject: 610 Medical sciences; Medicine

description: Hintergrund: Im Fall eines Herz-Kreislaufstillstands können die Basismaßnahmen einer Herz-Lungen-Wiederbelebung durch die Verwendung eines sogenannten Automated External Defibrillators (AED) erweitert werden, um die Überlebenschancen der Betroffenen zu erhöhen [ref:1], [zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 65th Annual Meeting of the German Association for Medical Informatics, Biometry and Epidemiology (GMDS), Meeting of the Central European Network (CEN: German Region, Austro-Swiss Region and Polish Region) of the International Biometric Society (IBS)
Reduction and approximation in gyrokinetics
Creators: name: Ghendrih, Philippe
name: Lima, Ricardo
name: Mendes, R. Vilela
Publisher: name: arXiv
Year: 2007
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The gyrokinetics formulation of plasmas in strong magnetic fields aims at the elimination of the angle associated with the Larmor rotation of charged particles around the magnetic field lines. In a perturbative treatment or as a time-averaging procedure, gyrokinetics is in general an approximation to the true dynamics. Here we discuss the conditions under which gyrokinetics is either an approximation or an exact operation in the framework of reduction of dynamical systems with symmetry
description: 15 pages latex
Αντιλήψεις των εκπαιδευτικών για τη συμπεριληπτική εκπαίδευση των μαθητών με ειδικές εκπαιδευτικές ανάγκες
Creators: name: Πολυζοπούλου, Κωνστνατίνα Χαραλάμπου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: συμπερίληψη
μαθητές με ειδικές εκπαιδευτικές ανάγκες
inclusion
special educational needs students

description: Σκοπός της παρούσας εργασίας ήταν η μελέτη των αντιλήψεων των εκπαιδευτικών σχετικά με τη συμπεριληπτική εκπαίδευση των μαθητών με ειδικές εκπαιδευτικές ανάγκες στο σχολείο γενικής παιδείας, αλλά και ο βαθμός επίδρασης της αυτοαποτελεσματικότητας των εκπαιδευτικών στη διαμόρφωση αυτών των αντιλήψεων. Στην έρευνα συμμετείχαν 416 εκπαιδευτικοί που διδάσκουν σε σχολεία προσχολικής αγωγής, πρωτοβάθμιας και δευτεροβάθμιας εκπαίδευσης. Τα αποτελέσματα έδειξαν γενικά θετικές αντιλήψεις απέναντι στην τακτική της συμπεριληπτικής εκπαίδευσης και θετικές πεποιθήσεις αυτοαποτελεσματικότητας. Ωστόσο, οι εκπαιδευτικοί φάνηκαν να αναπτύσσουν υψηλότερο βαθμό αποτελεσματικής αντιμετώπισης αρνητικών καταστάσεων συγκριτικά με τις αντιλήψεις τους για τη συμπερίληψη μαθητών με ειδικές εκπαιδευτικές ανάγκες στη γενική τάξη και κατ’ επέκταση την ικανότητα αντιμετώπισης των αναγκών αυτών των μαθητών. Τα αποτελέσματα συνάδουν με τη σύγχρονη βιβλιογραφία, αλλά παρουσιάζεται επιτακτική η ανάγκη συνεργασίας των μελών που απαρτίζουν το σχολικό σύστημα και επιμόρφωσης των εκπαιδευτικών, με σκοπό τον εμπλουτισμό των γνώσεών τους και της επαγγελματικής τους κατάρτισης.
description: The aim of the present thesis was to examine teachers’ attitudes toward the inclusion of students with special educational needs, in general education schools and how these attitudes are influenced by their self-efficacy perceptions. The sample comprised 416 preschool, primary and secondary mainstream education teachers. The results showed that, in general, teachers develop positive attitudes toward the inclusive education. Higher self-efficacy was associated with their capacity to affront negative experiences at school, than with their attitudes toward disabled learners in the classroom and their ability to affront successfully the special educational needs students. The results seem consistent with similar studies, but they reveal the need of establishing collaborative support networks in school districts and the development of teacher education programs, in order to achieve the enrichment of their knowledge and skills to address diverse needs appropriately.
description: Σε συνεργασία με το Παιδαγωγικό Τμήμα Νηπιαγωγών (Πανεπιστήμιο Δυτικής Μακεδονίας)
title: A multi-step strategy for rapid development of a research infrastructure for urgent research projects and subsequent pooling of data. Early lessons learned from SARS-CoV-2-pandemic activities
Creators: name: Bienzeisler, Jonas
name: Pérez Garriga, Ariadna
name: Fortmann, Jonas
name: Wienströer, Jan
name: Bley, Julia
name: Bender, Benedikt
name: Lutz, Irina
name: Szimtenings, Lukas
name: Dill, Benno
name: Hellmonds, Mark
name: Haferkamp, Silke
name: Müller-Wieland, Dirk
name: Cornelissen, Christian
name: Röhrig, Rainer
name: Majeed, Raphael W.
name: Covid-Aachen-STC
Publisher: name: German Medical Science GMS Publishing House
Year: 2021
Subjects: subject: SARS-CoV-2-pandemic
subject: research infrastructure
subject: data warehousing
subject: 610 Medical sciences; Medicine

description: Introduction: Typically, structured observational data of particular diseases for epidemiological and clinical research are collected in clinical registries. From our experience, the technical implementation and the design of such registers are a lengthy process that can easily take months. However,[for full text, please go to the a.m. URL]
description: 65th Annual Meeting of the German Association for Medical Informatics, Biometry and Epidemiology (GMDS), Meeting of the Central European Network (CEN: German Region, Austro-Swiss Region and Polish Region) of the International Biometric Society (IBS)
Additional file 5 of Risk factors associated with respiratory infectious disease-related presenteeism: a rapid review
Creators: name: Daniels, Sarah
name: Wei, Hua
name: Han, Yang
name: Catt, Heather
name: Denning, David W.
name: Hall, Ian
name: Regan, Martyn
name: Verma, Arpana
name: Whitfield, Carl A.
name: van Tongeren, Martie
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Computational Biology

description: Additional file 5. Reported reasons for presenteeism.
Time-dependent density-functional theory for open systems
Creators: name: Zheng, Xiao
name: Wang, Fan
name: Yam, Chi Yung
name: Mo, Yan
name: Chen, GuanHua
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: By introducing the self-energy density functionals for the dissipative interactions between the reduced system and its environment, we develop a time-dependent density-functional theory formalism based on an equation of motion for the Kohn-Sham reduced single-electron density matrix of the reduced system. Two approximate schemes are proposed for the self-energy density functionals, the complete second order approximation and the wide-band limit approximation. A numerical method based on the wide-band limit approximation is subsequently developed and implemented to simulate the steady and transient current through various realistic molecular devices. Simulation results are presented and discussed.
description: 16 pages, 12 figures
Doubling Properties of Caloric Functions
Creators: name: Escauriaza, L.
name: FernÁndez, F. J.
name: Vessella, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K10

description: We prove local quantitative estimates of unique continuation for solutions to parabolic equations: doubling properties and two-sphere one-cylinder inequalities.
Focus Group Discussion: how many Participants in a Group?
Creators: name: Cortini, Michela
name: Galanti, Teresa
name: Fantinelli, Stefania
Publisher: name: Encyclopaideia
Year: 2019
Subjects: Focus group; Numerosity; Qualitative; Technique; Participants

description: Focus group technique is often described as a subaltern procedure for collecting and analysing data, underestimating the FG great value; today this method has such a big scientific reputation that it is widely applied in different social research areas such as marketing, education, communication. This theoretical study aims at deeply analyze the matter about the right number of participants for a focus group; this methodological consideration can provide useful elements in order to balance risks and benefits when planning qualitative research in social context. In addition to the numerosity matter there are some elements to carefully consider for an effective focus group research: the sensitivity of themes, the scope of the research, the recording setting, the social category of both participants and researcher, the client.
description: Encyclopaideia, Vol 23, No 54 (2019)
Elena Madrussan, Educazione e inquietudine. La manoeuvre formativa, Ibis, Como-Pavia, ISBN 9788871645445, 302 pagine, 2017
Creators: name: Pinciroli, Gianmarco
Publisher: name: Encyclopaideia
Year: 2019

description: Encyclopaideia, Vol 23, No 54 (2019)
title: Die Digitalisierung der Pflege in Bayerisch-Schwaben – Vorstellung des Verbundprojektes CARE REGIO
Creators: name: Örtl, Michael
name: Fotteler, Marina
name: Holl, Felix
name: Friedrich, Petra
name: Fuchs, Dominik
name: Kramer, Frank
name: Mahler, Andreas
name: Mess, Elisabeth
name: Schmid, Stefanie
name: Swoboda, Walter
Publisher: name: German Medical Science GMS Publishing House
Year: 2021
Subjects: subject: Pflege 4.0
subject: Digitale Pflege
subject: Überleitungsmanagement
subject: AAL
subject: Digitalisierung
subject: 610 Medical sciences; Medicine

description: Hintergrund: Die Notwendigkeit der Digitalisierung in Medizin und Pflege wurde bereits mehrfach untersucht [ref:1], [ref:2]. Ebenso gibt es bereits einige Projekte um insbesondere den älteren Mitbürger.innen durch Digitalisierungslösungen eine möglichst lange [zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 65th Annual Meeting of the German Association for Medical Informatics, Biometry and Epidemiology (GMDS), Meeting of the Central European Network (CEN: German Region, Austro-Swiss Region and Polish Region) of the International Biometric Society (IBS)
title: Chancen und Grenzen bei der Nutzung von Gesundheitsdaten im Bereich Ambient Assisted Living
Creators: name: Bleja, Jelena
name: Wiewelhove, Dominik
name: Großmann, Uwe
Publisher: name: German Medical Science GMS Publishing House
Year: 2021
Subjects: subject: Ambiend Assisted Living
subject: Gesundheitsdaten
subject: Datennutzungskonzepte
subject: Geschäftsmodelle
subject: Finanzierungsansätze
subject: 610 Medical sciences; Medicine

description: Hintergrund: Vor dem Hintergrund des demografischen Wandels wenden sich immer mehr Akteure der Ausgestaltung technologischer Lösungsansätze zu [ref:1]. Die fortschreitende digitale Evolution ermöglicht die Entwicklung immer komplexerer Unterstützungssysteme [ref:2].[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 65th Annual Meeting of the German Association for Medical Informatics, Biometry and Epidemiology (GMDS), Meeting of the Central European Network (CEN: German Region, Austro-Swiss Region and Polish Region) of the International Biometric Society (IBS)
A new analytic ram pressure profile for satellite galaxies
Creators: name: Vega-Martínez, Cristian A.
name: Gómez, Facundo A.
name: Cora, Sofía A.
name: Hough, Tomás
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a new analytic fitting profile to model the ram pressure exerted over satellite galaxies on different environments and epochs. The profile is built using the information of the gas particle distribution in hydrodynamical simulations of groups and clusters of galaxies to measure the ram pressure directly. We show that predictions obtained by a previously introduced $β$-profile model can not consistently reproduce the dependence of the ram pressure on halocentric distance and redshift for a given halo mass. It features a systematic underestimation of the predicted ram pressure at high redshifts ($z > 1.5$), which increases towards the central regions of the haloes and it is independent of halo mass, reaching differences larger than two decades for satellites at $r<0.4R_\mathrm{vir}$. This behaviour reverses as redshift decreases, featuring an increasing over-estimation with halocentric distance at $z=0$. As an alternative, we introduce a new universal analytic model for the profiles which can recover the ram pressure dependence on halo mass, halocentric distance and redshift. We analyse the impact of our new profile on galaxy properties by applying a semi-analytic model of galaxy formation and evolution on top of the simulations. We show that galaxies experiencing large amounts of cumulative ram pressure stripping typically have low stellar masses ($M_\star \leq 10^{9.5} \text{M}_\odot$). Besides, their specific star formation histories depend on the ram pressure modelling applied, particularly at high redshifts ($z > 1.5$).
description: 15 pages, 8 figures. Accepted for publication in MNRAS
Υπολογιστικές Μέθοδοι για την Επίλυση Προβλημάτων του Λογισμού Μεταβολών
Creators: name: Τογανίδης, Νικόλαος Παντελεήμονος
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Θεωρία Βέλτιστου Ελέγχου
συναρτησιακό
Euler
Ritz
Kantorovich
Ιδιοσυναρτήσεις
Optimal Control Theory
functional
Eigenfunctions

description: Βασικό εργαλείο το οποίο χρησιμοποιούμε στη Θεωρία Βέλτιστου Ελέγχου είναι τα συναρτησιακά και η εύρεση μέγιστης ή ελάχιστης τιμής αυτών. Οι τιμές αυτές ονομάζονται και άκρες ή ακραίες τιμές του συναρτησιακού. Αρχικά γίνεται μία σύντομη αναφορά στον ορισμό του συναρτησιακού, καθώς και στις βασικές έννοιες που χρειάζονται για την πλήρη κατανόησή του. Τέτοιες έννοιες είναι η νορμική, οι χώροι Banach και οι καμπύλες κλάσης C^k. Στη συνέχεια, αφού εξηγήσουμε τις δυσκολίες τις οποίες πολλές φορές μπορεί να αντιμετωπίσουμε κατά την επίλυση ενός συναρτησιακού προβλήματος, μπαίνουμε στις λεγόμενες απ’ ευθείας μεθόδους επίλυσης των συναρτησιακών προβλημάτων. Θα μελετήσουμε διεξοδικά τις εξής μεθόδους: (1) Μέθοδος πεπερασμένης διαφοράς του Euler (2) Μέθοδος του Ritz (3) Μέθοδος του Kantorovich (4) Μέθοδος εύρεσης ιδιοτιμών και ιδιοσυναρτήσεων. Μετά από τη θεωρητική ανάλυση κάθε μεθόδου, παραθέτουμε κατατοπιστικά παραδείγματα. Τέλος, παρουσιάζουμε την υλοποίηση των τριών πρώτων μεθόδων, μαζί με συγκεκριμένα παραδείγματα.
description: A basic tool in Optimal Control Theory is the functionals and the research of maximal and minimal value of those. These values are also called extreme values of the functional. In the beginning, there is a small reference on the definition of the functional, along with the basic notions needed for its understanding. These notions include the norm, Banach spaces and the curves of C^k class. In follow-up, after we explain the difficulties we may often face while trying to solve a functional problem, we get into the so-called direct methods of solving functional problems. We’re going to study in detail the following methods: (1) Euler’s finite difference method (2) Ritz’s method (3) Kantorovich’s method (4) Eigenvalues and eigenfunctions searching method. After the theoretical analysis of each method, we give some specific examples. In the end, we present the implementation of the three first methods, along with specific examples.
title: Entwicklung einer leistungsorientierten, Schweregrad- und Verweildauer-abhängigen Tarifstruktur mit Routinedaten
Creators: name: Noll, Samuel
name: Kreutzinger, Philipp
name: Guidon, Rémi
name: Hölzer, Simon
Publisher: name: German Medical Science GMS Publishing House
Year: 2021
Subjects: subject: Tarifstruktur
subject: Datenerhebung
subject: Leistungen am Patienten
subject: 610 Medical sciences; Medicine

description: Hintergrund: Basierend auf dem Schweizer Krankenversicherungsgesetz (KVG) Artikel 49 wurde per 1. Januar 2018 die nationale Tarifstruktur TARPSY eingeführt, welche in der Vergütung der stationären psychiatrischen Fälle anhand degressiver Tagespauschalen ihre Anwendung findet [ref:1].[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 65th Annual Meeting of the German Association for Medical Informatics, Biometry and Epidemiology (GMDS), Meeting of the Central European Network (CEN: German Region, Austro-Swiss Region and Polish Region) of the International Biometric Society (IBS)
The Galactic Faraday rotation sky 2020
Creators: name: Hutschenreuter, Sebastian
name: Anderson, Craig S.
name: Betti, Sarah
name: Bower, Geoffrey C.
name: Brown, Jo-Anne
name: Brüggen, Marcus
name: Carretti, Ettore
name: Clarke, Tracy
name: Clegg, Andrew
name: Costa, Allison
name: Croft, Steve
name: Van Eck, Cameron
name: Gaensler, B. M.
name: de Gasperin, Francesco
name: Haverkorn, Marijke
name: Heald, George
name: Hull, Charles L. H.
name: Inoue, Makoto
name: Johnston-Hollitt, Melanie
name: Kaczmarek, Jane
name: Law, Casey
name: Ma, Yik Ki
name: MacMahon, David
name: Mao, Sui Ann
name: Riseley, Christopher
name: Roy, Subhashis
name: Shanahan, Russell
name: Shimwell, Timothy
name: Stil, Jeroen
name: Sobey, Charlotte
name: O'Sullivan, Shane
name: Tasse, Cyril
name: Vacca, Valentina
name: Vernstrom, Tessa
name: Williams, Peter K. G.
name: Wright, Melvyn
name: Enßlin, Torsten A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: This work gives an update to existing reconstructions of the Galactic Faraday rotation sky by processing almost all Faraday rotation data sets available at the end of the year 2020. Observations of extra-Galactic sources in recent years have, among other regions, further illuminated the previously under-constrained southern celestial sky, as well as parts of the inner disc of the Milky Way. This has culminated in an all-sky data set of 55,190 data points, which is a significant expansion on the 41,330 used in previous works, hence making an updated separation of the Galactic component a promising venture. The increased source density allows us to present our results in a resolution of about $1.3\cdot 10^{-2}\, \mathrm{deg}^2$ ($46.8\,\mathrm{arcmin}^2$), which is a twofold increase compared to previous works. As for previous Faraday rotation sky reconstructions, this work is based on information field theory, a Bayesian inference scheme for field-like quantities which handles noisy and incomplete data. In contrast to previous reconstructions, we find a significantly thinner and pronounced Galactic disc with small-scale structures exceeding values of several thousand $\mathrm{rad}\,\mathrm{m}^{-2}$. The improvements can mainly be attributed to the new catalog of Faraday data, but are also supported by advances in correlation structure modeling within numerical information field theory. We furthermore give a detailed discussion on statistical properties of the Faraday rotation sky and investigate correlations to other data sets.
description: accepted in A&A; 15 pages, 12 Figures; results at https://wwwmpa.mpa-garching.mpg.de/~ensslin/research/data/faraday2020.html and http://cutouts.cirada.ca/rmcutout