cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The effects of spiritual care nursing education on nurses' comfort in the delivery of spiritual care
Creators: name: Sterling-Fisher, Carmen E
Publisher: name: University of Nevada, Las Vegas
Year: 2000

description: Spiritual care of patients has been an important part of nursing since Florence Nightingale's days, although the spiritual nature of nursing care is often overlooked in today's nursing community. According to Highfield (1992) and Lilley (1987), issues regarding the physical and psychosocial aspects of nursing care continue to predominate nursing literature despite the long standing documented value of spiritual aspects of nursing care (Burkhardt and Nagai-Jacobson, 1994; Robinson, 1994 and Ross, 1994), resulting in limited available learning opportunities related to spiritual care. The purpose of this study was to determine the effect of an educational intervention concerning spiritual nursing care on spiritual care knowledge and comfort level in the delivery of spiritual care. Forty-six registered nurses were tested pre- and post-seminar in order to determine the effect of the educational intervention; Findings revealed high base knowledge and comfort level related to spiritual care. Despite this high level, knowledge increased significantly post-seminar (p.008). Comfort level was also increased (p =.057), but this increase was not significant. Anecdotal comments from seminar participants supported the findings and reflected interest and excitement about spirituality and nursing; This study provided evidence of interest in spiritual nursing care among registered nurses. Documentation of objective and subjective findings related to education and spiritual care nursing has the potential to impact nursing education and practice.
title: Living History und Reenactment: Erste Ergebnisse einer Umfrage
Creators: name: Samida, Stefanie
name: Liburkina, Ruzana
Publisher: name: University Library Heidelberg
Year: 2015

description: Seit 2011 beschäftigt sich das am Zentrum für Zeithistorische Forschung Potsdam und an der Universität Tübingen angesiedelte Forschungsvorhaben „Living History: Reenacted Prehistory between Research and Popular Performance“ in multidisziplinärer Perspektive mit verschiedenen Living History-Formaten. Im Frühjahr/Sommer 2013 führte eines der Teilprojekte eine an Living History-Darsteller adressierte Online-Umfrage zum Themenkomplex‚ Living History/Reenactment‘ durch. Ziel war es, sich einen Überblick über die unterschiedlichen Motive der Akteure und das breitgefächerte Spektrum an Aktivitäten zu verschaffen.
Der Beitrag stellt einige zentrale Ergebnisse dieser Umfrage, an der rund 170 Personen teilnahmen, vor. Sie verdeutlichen, dass es keinen prototypischen ‚Living Historian‘ und auch keinesfalls eine homogene ‚Szene‘ gibt, sondern eine große Bandbreite an unterschiedlichen Gruppen, Akteuren und Standpunkten. Living History bzw. Reenactment, das machte die Umfrage ebenfalls deutlich, stellt kein Phänomen dar, dessen einzelne mFacetten losgelöst voneinander betrachtet werden können; vielmehr wurde klar, dass Besonderheiten, Tätigkeitsausrichtungen, persönliche Präferenzen und Einstellungen der Akteure stets miteinander verflochten sind und sich wechselseitig bedingen. Ergänzende Materialien: der der Umfrage zu Grunde liegende Fragebogen.
description: Since 2011 the project “Living History: Reenacted Prehistory between Research and Popular Performance”, conducted at the Centre for Contemporary History in Potsdam and at the University of Tübingen, analyzes different popular living-history performances of prehistory in a multidisciplinary manner. One of the subprojects initiated a web-based questionnaire on reenactors’ motives, their amount of work and their understanding of the terms ‘living history’ and ‘reenactment’ as well as their concept of ‘authenticity’. About 170 reenactors from all over Germany completed the questionnaire, which ran for thirty days in June 2013.
In this paper we present some pivotal results of this survey which illustrate that there exists neither a prototypical reenactor nor a homogeneous subculture but a wide spectrum of different groups, actors and, viewpoints. Living history respectively reenactment is not a phenomenon whose single aspects can be examined uncoupled and independent from each other. It becomes rather clear that the actors’ specialties, activities, personal preferences and engagements are linked to each other and are mutually dependent. supplemental material: questionnaire used for the survey in June 2013
Caught in the Act: Discovery of a Physical Quasar Triplet
Creators: name: Farina, E. P.
name: Montuori, C.
name: Decarli, R.
name: Fumagalli, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the discovery of a triplet of quasars at z~1.51. The whole system is well accommodated within 25 arcsec (i.e., 200 kpc in projected distance). The velocity differences among the three objects (as measured through the broad MgII emission line) are less than 1000 km/s, suggesting that the quasars belong to the same physical structure. Broad band NIR images of the field do not reveal evidence of galaxies or galaxy clusters that could act as a gravitational lens, ruling out the possibility that two or all the three quasars are multiple images of a single, strongly lensed source. QQQ J1519+0627 is the second triplet of quasars known up to date. We estimate that these systems are extremely rare in terms of simple accidental superposition. The lack of strong galaxy overdensity suggests that this peculiar system is harboured in the seeds of a yet-to-be-formed massive structure. Based on observations collected at the La Silla Observatory with the New Technology Telescope (NTT) of the European Southern Observatory (ESO) and at the Calar Alto Observatory with the 3.5m telescope of the Centro Astronómico Hispano Alemán (CAHA).
description: 8 pages, 6 figures, 1 table. Accepted for publication in MNRAS
Political control over special districts in local government: A case study of the Las Vegas - Clark County Library District
Creators: name: Stephens, John Thompson
Publisher: name: University of Nevada, Las Vegas
Year: 2000

description: This thesis examines the Las Vegas - Clark County Library District over the five year period from 1991 to 1995. Based on interviews, local media coverage and budgetary data, the work traces the development of the library district during its most turbulent times. As a case study of special districts or "functional feudalities", the Las Vegas - Clark County Library District provides an excellent microcosm for understanding competing elites, interest group politics, budgetary problems, and public perception as determinants of policy made by a non-elected governing board.
Бушевское городище
Creators: name: Кучера, Михайло
Publisher: name: figshare
Year: 2019
Subjects: Archaeology

description: Кучера, М. П. 1989. Бушевское городище. В: Толочко, П. П. (отв. ред.). Древние славяне и Киевская Русь. Киев: Наукова думка, с. 188–192.
title: Capability of native Yucca Mountain microorganisms to corrode 1020 carbon steel
Creators: name: Castro, Patricia Russo
Publisher: name: University of Nevada, Las Vegas
Year: 1997

description: This project addressed the ability of native Yucca Mountain bacterial isolates to corrode metal designated as the outer barrier for nuclear waste containment. Microorganisms implicated in microbially-influenced corrosion recovered from the deep subsurface at Yucca Mountain include iron-oxidizing, sulfate-reducing, and exopolymer-producing bacteria. Test systems composed of a 1020 carbon steel coupon immersed in soft agar or soft agar and ground rock were designed to evaluate the biofilm formation and corrosion capabilities of these microorganisms at elevated temperature. Results indicated that incubation at 50{dollar}\sp\circ{dollar}C decreased the ability of these microorganisms to corrode carbon steel immersed in soft agar. However, corrosion rates were dramatically increased by the presence of a rock surface. Enhanced corrosion rates were also observed in each medium when the system was allowed to colonize at ambient temperature prior to incubation at 50{dollar}\sp\circ{dollar}C.
title: Η σχέση του συνδρόμου της επαγγελματικής εξουθένωσης με την εργασιακή ικανοποίηση στους εργαζόμενους στον τραπεζικό κλάδο
title: The relationship of burnout syndrome with job satisfaction among employees in the banking industry
titleType: AlternativeTitle
Creators: name: Ζωιτάκη, Κωνσταντίνα
Publisher: name: Πανεπιστήμιο Πελοποννήσου
Year: 2022
Subjects: subject: Επαγγελματική εξουθένωση
subject: Εργασιακή ικανοποίηση
subject: Επαγγελματική εξουθένωση
subject: Εργασιακή ικανοποίηση
subject: Burnout syndrome
subject: Job satisfaction

description: Μ.Δ.Ε. 34
description: Ως επαγγελματική εξουθένωση ορίζεται η διαταραχή που υπάρχει στο εργασιακό περιβάλλον η οποία οδηγεί σε γενικότερη σωματική και πνευματική αδυναμία του εργαζομένου. Πρόκειται για μια έννοια που υπάρχει στη βιβλιογραφία και στην ακαδημαϊκή έρευνα για να περιγράψει μια κατάσταση εξουθένωσης των επαγγελματιών ψυχικής υγείας ή άλλων εργαζομένων που έρχονται σε επαφή με άλλους ανθρώπους, που οφείλεται σε ψυχοσωματικά συμπτώματα που υπάρχουν στο εργασιακό τους περιβάλλον. Παράλληλα, η εργασιακή ικανοποίηση είναι ένα μέτρο ικανοποίησης των εργαζομένων με τη δουλειά τους, είτε τους αρέσει η εργασία είτε μεμονωμένες πτυχές της εργασίας, όπως η φύση της εργασίας, ο μισθός, η επικοινωνία με τους συναδέλφους και το κλίμα στην εργασία, κ.α. Η παρούσα διπλωματική εργασία μελετάει τη σχέση μεταξύ επαγγελματικής εξουθένωσης και εργασιακής ικανοποίησης στους εργαζόμενους στον τραπεζικό κλάδο στην Ελλάδα. Η εξέταση αυτής της σχέσης γίνεται μέσω πρωτογενούς ποσοτικής έρευνας, η οποία διεξάγεται μέσω ερωτηματολογίου. Συγκεκριμένα, χρησιμοποιούνται τα ερευνητικά εργαλεία και οι παράγοντες που ερευνούν τα συγκεκριμένα ερωτηματολόγια, OLBI (Demerouti et al., 2002) για την εκτίμηση του συνδρόμου της επαγγελματικής εξουθένωσης και JSS (Spector, 1985), για την εκτίμηση της εργασιακής ικανοποίησης. Τα ευρήματα της εργασίας δείχνουν ότι εξουθένωση και ικανοποίηση σχετίζονται σε σημαντικό βαθμό. Παράλληλα, η εργασία δείχνει ότι υπάρχει πληθώρα παραγόντων που επηρεάζει την επαγγελματική εξουθένωση, την εργασιακή ικανοποίηση και διάφορες πλευρές της. Τη συνολική εργασιακή ικανοποίηση επηρεάζει το εισόδημα, η αποφυγή δεσμεύσεων, η ικανοποίηση από το μισθό, οι πιθανότητες προαγωγής, οι προϊστάμενοι, τα πρόσθετα οφέλη, οι ανταμοιβές, οι συνθήκες εργασίας, οι συνάδελφοι, η φύση εργασίας και η επικοινωνία εντός της εργασίας.
title: Μελέτη της αντιοξειδωτικής επίδρασης των βοτάνων βαλεριάνα ,ανεμώνη και λεβάντα στο οίνο
title: Study of the antioxidant effects of the herbs Valerian Anemone and Lavender on wine
titleType: AlternativeTitle
Creators: name: Γεωργάκης, Άγγελος-Ελευθεριος
name: Κλαμπατσεας, Παναγιώτης
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2023
Subjects: Βότανα
Λεβάντα
Ανεμώνη
Βαλεριάνα
Οίνος
Αντιοξειδωτική ικανότητα
Φαινολικές ενώσεις
Σαββατιανό

description: Στην παρούσα πτυχιακή εργασία μελετάμε την επίδραση των βοτάνων βαλεριάνα, ανεμώνη και λεβάντα στην αντιοξειδωτική ικανότητα των οίνων και στο ολικό φαινολικό προφίλ τους. Η μελέτη διεξήχθη εργαστηριακά στις εγκαταστάσεις του τμήματος Επιστημών Οίνου, Αμπέλου και Ποτών, προζυμωτικά σε γλεύκος από την ποικιλία Σαββατιανό και μεταζυμωτικά σε οίνο από το ίδιο γλεύκος με την προζυμωτική εκχύλιση, που παρήχθησαν στον Οινοποιητικό Συνεταιρισμό Κορωπίου. Στο εργαστηριακό μέρος της έρευνας εφαρμόσαμε 2 αναλυτικές μεθόδους, τη μέθοδο Follin-Ciocalteu και την μέθοδο DPPH για μέτρηση ολικών φαινολικών συστατικών και τη μέτρηση αντιοξειδωτικών συστατικών αντίστοιχα. Σκοπός της έρευνας αυτής είναι η μελέτη των συγκεντρώσεων φαινολικών στον οίνο με τα συγκεκριμένα βότανα αλλά και η μέτρηση της συγκέντρωσης αντιοξειδωτικών συστατικών. Σημαντικό κομμάτι της παρούσας εργασίας είναι η μελέτη της εκχυλισιμότητας των βοτάνων και για αυτό δημιουργήθηκαν 3 ξεχωριστά δείγματα διαφορετικών συγκεντρώσεων ανά βότανο σε οίνο και σε γλέυκος.
Einblicke in die qualitative Analyse des Projekts schauMal
Creators: name: Landgraf, Vera
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2023
Subjects: subject: anschauliches Beweisen
subject: Darstellungsmittel
subject: Rechtecksdarstellungen
subject: qualitative Analyse
subject: Darstellen
subject: Darstellungswechsel
subject: Zeichensysteme
subject: 510

description: Im Forschungsprojekt schauMal wird anschauliches Beweisen im Mathematikunterricht der Grundschule thematisiert. Diese Beweise nutzen Handlungen, bei denen sichtbar wird, dass sie sich auf eine ganze Klasse von Beispielen anwenden lassen und somit allgemeingültig sind (Wittmann, 2014). Sie eröffnen Kindern einen sinnvollen Zugang zum Beweisen und die Option auf Nachweis der Allgemeingültigkeit (Schifter, 2009). Darstellungen als Darstellungsmittel fungieren somit als Mittler zwischen Vorstellungen und den betrachteten, abstrakten Strukturen und nehmen die Funktion von Argumentations- und Beweismitteln ein (Schulz, 2014). Sie verdeutlichen Regelhaftigkeiten, über die und durch die die Kinder kommunizieren können, auch wenn sie noch nicht über die Sprache der Algebra verfügen (Dreyfus et. al., 2012; Krauthausen & Scherer, 2007). Die Grundidee des Projekts ist die Förderung von anschaulicher Beweisfähigkeit durch den Einsatz von Darstellungsmitteln im Unterricht. Dafür werden fachlich und fachdidaktisch fundierte Unterrichtseinheiten zum anschaulichen Beweisen von Teilbarkeiten entwickelt, in einer Intervention implementiert und anschließend evaluiert. Begleitend zur Intervention werden Interviews mit insgesamt zwölf Kindern durchgeführt, die qualitativ analysiert werden. Die Erprobung anschaulicher Beweise wird im Inhaltsbereich Teilbarkeit von natürlichen Zahlen realisiert. Die Teilbarkeitsrelation kann mithilfe von Rechtecksdarstellungen anschaulich gemacht werden, wodurch das Darstellungsmittel eine für Kinder zugängliche Sprache und damit Potenzial, Argumentations- und Beweismittel zu werden, bietet (Landgraf, 2020).
The Charged Higgs Boson Mass of the MSSM in the Feynman-Diagrammatic Approach
Creators: name: Frank, M.
name: Galeta, L.
name: Hahn, T.
name: Heinemeyer, S.
name: Hollik, W.
name: Rzehak, H.
name: Weiglein, G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The interpretation of the Higgs signal at \sim 126 GeV within the Minimal Supersymmetric Standard Model (MSSM) depends crucially on the predicted properties of the other Higgs states of the model, as the mass of the charged Higgs boson, MH+-. This mass is calculated in the Feynman-diagrammatic approach within the MSSM with real parameters. The result includes the complete one-loop contributions and the two-loop contributions of O(alpha_t alpha_s). The one-loop contributions lead to sizable shifts in the MH+- prediction, reaching up to \sim 8 GeV for relatively small values of M_A. Even larger effects can occur depending on the sign and size of the mu parameter that enters the corrections affecting the relation between the bottom-quark mass and the bottom Yukawa coupling. The two-loop O(alpha_t alpha_s) terms can shift MH+- by more than 2 GeV. The two-loop contributions amount to typically about 30% of the one-loop corrections for the examples that we have studied. These effects can be relevant for precision analyses of the charged MSSM Higgs boson.
description: 32 pages, 14 figures
title: College students' image of nursing as a career choice
Creators: name: DuCharme, Michael Aaron
Publisher: name: University of Nevada, Las Vegas
Year: 1997

description: The majority of compression algorithms developed today contain some degree of image loss. While this is acceptable for certain types of image viewing, such a loss can interfere with applications that require the scientific analysis of an image. In this paper a lossless motion compensation compression algorithm is introduced and tested on a series of medical images which contain a high degree of motion. This motion compensation technique compensates for translation, scaling, rotation and the movement of multiple objects. This is accomplished be recursively dividing an image into a series of blocks, starting with a set of sixteen by sixteen size blocks, which are checked for motion and stored as a set of five bitmap files. The recursion continues until a block contains a single pixel of movement, at which point the intensity difference of the pixel from the previous and current frame is stored in a sixth file.
Studying Faint Ultra Hard X-ray Emission from AGN in GOALS LIRGs with Swift BAT
Creators: name: Koss, Michael
name: Mushotzky, Richard
name: Baumgartner, Wayne
name: Veilleux, Sylvain
name: Tueller, Jack
name: Markwardt, Craig
name: Casey, Caitlin M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the first analysis of the all-sky Swift BAT ultra hard X-ray (14-195 keV) data for a targeted list of objects. We find the BAT data can be studied at 3x fainter limits than in previous blind detection catalogs based on prior knowledge of source positions and using smaller energy ranges for source detection. We determine the AGN fraction in 134 nearby (z<0.05) luminous infrared galaxies (LIRGS) from the GOALS sample. We find that LIRGs have a higher detection frequency than galaxies matched in stellar mass and redshift at 14-195 keV and 24-35 keV. In agreement with work at other wavelengths, the AGN detection fraction increases strongly at high IR luminosity with half of high luminosity LIRGs (50%, 6/12, log L_IR/L_sun>11.8) detected. The BAT AGN classification shows 97% (37/38) agreement with Chandra and XMM AGN classification using hardness ratios or detection of a iron K-alpha line. This confirms our statistical analysis and supports the use of the Swift BAT all-sky survey to study fainter populations of any category of sources in the ultra hard X-ray band. BAT AGN in LIRGs tend to show higher column densities with 40\pm9% showing 14-195 keV/2-10 keV hardness flux ratios suggestive of high or Compton-thick column densities (log N_H>24 cm^-2), compared to only 12\pm5% of non-LIRG BAT AGN. We also find that using specific energy ranges of the BAT detector can yield additional sources over total band detections with 24% (5/21) of detections in LIRGs at 24-35 keV not detected at 14-195 keV.
description: Accepted for publication in ApJL
Длинные валы
Creators: name: Кучера, Михайло
Publisher: name: figshare
Year: 2019
Subjects: Archaeology

description: Кучера, М. П. 1990. Длинные валы. В: Дьяченко, А. Г. (отв. ред.). Археологические исследования в Центральном Черноземье в двенадцатой пятилетке. Тезисы докладов и сообщений ІІ межвузовской научной конференции. Белгород (б. и.), с. 43–45.
Rashba spin-orbit interaction in a circular quantum ring in the presence of a magnetic field
Creators: name: Kudryashov, V. V.
name: Baran, A. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: J.2

description: Exact wave functions and energy levels are obtained for an electron in a two-dimensional semiconductor circular quantum ring with a confining potential of finite depth in the presence of both an external magnetic field and the Rashba spin-orbit interaction.
description: 7 pages, 4 figures, 2 tables
Μελέτη της διακύμανσης των τιμών χύδην φορτίου και ανάλυση της αγοράς εισαγωγών και εξαγωγών την τελευταία πενταετία
Creators: name: Ζωγραφάκης, Νικόλαος
name: Καλοτίνη, Μαρία
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2023
Subjects: subject: Χύδην
subject: Φορτία
subject: Τιμές
subject: BDI
subject: Ανάλυση

description: Η παρούσα πτυχιακή παρέχει μια επισκόπηση της προόδου της αγοράς ξηρού χύδην φορτίου από το 2016 έως το 2021, συμπεριλαμβανομένης μιας ανάλυσης της απόδοσης της αγοράς, των παραγόντων που συνέβαλαν στη διακύμανση των τιμών τους και των μελλοντικών της προοπτικών. Η αγορά ξηρών χύδην φορτίων στη περίοδο που μελετήθηκε, παρουσίασε παρατεταμένη ύφεση σε συνέχεια των προηγούμενων ετών, από το 2016 έως το 2017, ακολουθούμενη από ανάκαμψη από το 2018 και μετά. Διακυμάνσεις παρατηρήθηκαν και ως αντίκτυπο της πανδημία COVID-19 το 2020. Η απόδοση της αγοράς επηρεάστηκε από διάφορους παράγοντες, όπως η δυναμική προσφοράς και ζήτησης, γεωπολιτικά γεγονότα, και διαταραχές που σχετίζονται με τις καιρικές συνθήκες. Οι μελλοντικές προοπτικές για την αγορά ξηρού χύδην φορτίου εξαρτώνται από πολλές παραμέτρους που οδηγούν σε αβεβαιότητες, συμπεριλαμβανομένων των παγκόσμιων εμπορικών προτύπων, των τεχνολογικών προόδων, των περιβαλλοντικών κανονισμών και της παγκόσμιας πολιτικής. Περαιτέρω έρευνα σε αυτόν τον τομέα μπορεί να προσφέρει πολύτιμες γνώσεις για αυτό το περίπλοκο και δυναμικό σύστημα.
Experimental investigation of natural convection about drift-emplaced waste canisters
Creators: name: Wang, Qun
Publisher: name: University of Nevada, Las Vegas
Year: 2000

description: Drift-emplaced waste canisters are under consideration for the long-term storage of high-level spent fuel in the proposed underground repository at Yucca Mountain. These canisters will be placed on pedestals above the floor of the drift and exchange heat with the wall of the drift with air circulating through the repository. To assess the requirements for repository energy management and the ventilation system, flow visualization and heat transfer experiments for natural convection were performed. The experiments used both the smoke generation and the dye injection techniques to obtain the natural convection patterns for 4.9 {dollar}\times{dollar} 10{dollar}\sp4{dollar} {dollar}\le{dollar} Ra{dollar}\sb{\rm d}{dollar} {dollar}\le{dollar} 1.6 {dollar}\times{dollar} 10{dollar}\sp5{dollar} and 1.4 {dollar}\times{dollar} 10{dollar}\sp6{dollar} {dollar}\le{dollar} Ra{dollar}\sb{\rm d}{dollar} {dollar}\le{dollar} 2.9 {dollar}\times{dollar} 10{dollar}\sp7{dollar} in a horizontal eccentric annulus containing heated canisters. This range of Rayleigh numbers included both laminar convection and turbulent convection. In addition, the measured average Nusselt numbers were computed as a function of Rayleigh number for laminar and turbulent flows. The data were compared with the results of previous experimental work.
Stratified SIFT Matching for Human Iris Recognition
Creators: name: Bakshi, Sambit
name: Mehrotra, Hunny
name: Majhi, Banshidhar
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: 68U10

description: This paper proposes an efficient three fold stratified SIFT matching for iris recognition. The objective is to filter wrongly paired conventional SIFT matches. In Strata I, the keypoints from gallery and probe iris images are paired using traditional SIFT approach. Due to high image similarity at different regions of iris there may be some impairments. These are detected and filtered by finding gradient of paired keypoints in Strata II. Further, the scaling factor of paired keypoints is used to remove impairments in Strata III. The pairs retained after Strata III are likely to be potential matches for iris recognition. The proposed system performs with an accuracy of 96.08% and 97.15% on publicly available CASIAV3 and BATH databases respectively. This marks significant improvement of accuracy and FAR over the existing SIFT matching for iris.
description: 7 pages
Searching for axion-like-particles in the sky.
Creators: name: Burrage, Clare
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2009
Subjects: subject: 530
subject: axion: search for
subject: field theory: scalar
subject: photon axion: coupling
subject: magnetic field
subject: luminosity
subject: AGN
subject: optics
subject: astrophysics
subject: numerical calculations

description: doi:10.3204/PHPPUBDB-11756
description: If dark energy couples to the fields of the standard model we can hope to detect or constrain it through non-gravitational effects. If the dark energy field couples to photons it behaves as an Axion-Like-Particle (ALP). ALPs mix with photons in the presence of magnetic fields and hence affect astronomical observations. We show that empirically established luminosity relations can be used as a new test for ALPs and that when applied to observations of active galactic nuclei this is highly suggestive of the existence of a very light ALP.
Large-Alphabet Time-Frequency Entangled Quantum Key Distribution by means of Time-to-Frequency Conversion
Creators: name: Nunn, J.
name: Wright, L.
name: Söller, C.
name: Zhang, L.
name: Walmsley, I. A.
name: Smith, B. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a novel time-frequency quantum key distribution (TFQKD) scheme based on photon pairs entangled in these two conjugate degrees of freedom. The scheme uses spectral detection and phase modulation to enable measurements in the temporal basis by means of time-to-frequency conversion. This allows large-alphabet encoding to be implemented with realistic components. A general security analysis for TFQKD with binned measurements reveals a close connection with finite-dimensional QKD protocols and enables analysis of the effects of dark counts on the secure key size.
description: 14 pages, 3 figures, submitted
NON COACTUS NEQUE VOLUIT? IL CONSENSO DELLA VITTIMA AL PROPRIO SFRUTTAMENTO E LA VULNERABILIT� INDIVIDUALE NEL DIRITTO PENALE
Creators: name: BERNARDI, SILVIA
Publisher: name: Universit� degli Studi di Milano
Year: 2020

description: Il presente lavoro di ricerca indaga il significato e i contorni assunti dal concetto di sfruttamento nel diritto penale italiano, vagliando in particolare la possibilit� di attribuire rilevanza autonoma a una nozione di sfruttamento (definita in ?senso stretto?) caratterizzata dalla presenza del consenso della vittima. A tal fine, vengono fatti oggetto di specifica attenzione ? alla luce di un?analisi della dottrina e della giurisprudenza nazionali e sovranazionali ? i concetti di ?vulnerabilit�? e di ?approfittamento/abuso dell?altrui condizione di vulnerabilit�?, considerati centrali per definire il disvalore dei fatti di sfruttamento dell?essere umano e per giustificare l?irrilevanza del consenso prestato dalla vittima al proprio sfruttamento; la ricerca conduce inoltre un?analisi critica delle posizioni emerse in dottrina e in giurisprudenza con riferimento al settore della normativa oggetto di esame, suggerendo alcune soluzioni coerenti con il modello interpretativo proposto. In conclusione al lavoro, la possibilit� di attribuire rilevanza penale nel nostro sistema giuridico allo sfruttamento consensuale dell?individuo viene confrontata con i principi cardine dell?ordinamento (legalit�, offensivit�, sussidiariet� e proporzione, effettivit�), da cui si ricavano indicazioni de iure condito e de iure condendo.
BREAST CANCER, FOCUS ON SELECTED EPIDEMIOLOGICAL ASPECTS
Creators: name: PIZZATO, MARGHERITA
Publisher: name: Universit� degli Studi di Milano
Year: 2022

description: In this final report I described the main phases on my PhD period, collecting my main research work of the last three years. I have had the possibility to explore different epidemiological themes and to collaborate with leading researchers in this field. I mainly focused on breast cancer, through Piedmont Registry data, but I had also the possibility to address epidemiological aspects of other cancers. The added value was the chance to work in an international context in Lyon at the International Agency for Research on Cancer. My career in cancer epidemiology is only at the beginning. I will be able to continue my research in the next three years, thanks to a postgraduate scholarship in health statistics.
Translocation through environments with time dependent mobility
Creators: name: Cohen, Jack A.
name: Chaudhuri, Abhishek
name: Golestanian, Ramin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider single particle and polymer translocation where the frictional properties experienced from the environment are changing in time. This work is motivated by the interesting frequency responsive behaviour observed when a polymer is passing through a pore with an oscillating width. In order to explain this better we construct general diffusive and non-diffusive frequency response of the gain in translocation time for a single particle in changing environments and look at some specific variations. For two state confinement, where the particle either has constant drift velocity or is stationary, we find exact expressions for both the diffusive and non-diffusive gain. We then apply this approach to polymer translocation under constant forcing through a pore with a sinusoidally varying width. We find good agreement for small polymers at low frequency oscillation with deviations occurring at longer lengths and higher frequencies. Unlike periodic forcing of a single particle at constant mobility, constant forcing with time dependent mobility is amenable to exact solution through manipulation of the Fokker-Planck equation.
description: 9 pages, 5 figures
Spectral Properties of X-ray Binaries in Centaurus A
Creators: name: Burke, Mark J.
name: Raychaudhury, Somak
name: Kraft, Ralph P.
name: Maccarone, Thomas J.
name: Brassington, Nicola J.
name: Hardcastle, Martin J.
name: Kainulainen, Jouni
name: Woodley, Kristin A.
name: Goodger, Joanna L.
name: Sivakoff, Gregory R.
name: Forman, William R.
name: Jones, Christine
name: Murray, Stephen S.
name: Birkinshaw, Mark
name: Croston, Judith H.
name: Evans, Daniel A.
name: Gilfanov, Marat
name: Jordan, Andres
name: Sarazin, Craig L.
name: Voss, Rasmus
name: Worrall, Diana M.
name: Zhang, Zhongli
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a spectral investigation of X-ray binaries in NGC 5128 (Cen A), using six 100 ks Chandra observations taken over two months in 2007. We divide our sample into thermally and non-thermally dominated states based on the behavior of the fitted absorption column, and present the spectral parameters of sources with L >2x10^37 erg/s. The majority of sources are consistent with being neutron star low mass X-ray binaries (NS LMXBs) and we identify three transient black hole (BH) LMXB candidates coincident with the dust lane, which is the remnant of a small late-type galaxy. Our results also provide tentative support for the apparent `gap' in the mass distribution of compact objects between ~2-5 Msol. We propose that BH LMXBs are preferentially found in the dust lane, and suggest this is because of the younger stellar population. The majority (~70-80%) of potential Roche-lobe filling donors in the Cen A halo are >12 Gyr old, while BH LMXBs require donors >1 Msol to produce the observed peak luminosities. This requirement for more massive donors may also explain recent results that claim a steepening of the X-ray luminosity function with age at Lx >= 5x10^38 erg/s for the XB population of early-type galaxies; for older stellar populations, there are fewer stars >1 Msol, which are required to form the more luminous sources.
description: Accepted for publication in ApJ
Траянові вали Східного Поділля
Creators: name: Кучера, Михайло
Publisher: name: figshare
Year: 2019
Subjects: Archaeology

description: Кучера, М. П. 1990. Траянові вали Східного Поділля. В: Винокур, І. С. (відп. ред.) та ін. VІІ Подільська історико-краєзнавча конференція (Кам’янець-Подільський, 1990). Тези доповідей (Секція археології). Кам’янець-Подільський (б. в.), с. 39–40.
Black hole binary inspiral and trajectory dominance
Creators: name: Price, Richard H.
name: Khanna, Gaurav
name: Hughes, Scott A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Gravitational waves emitted during the inspiral, plunge and merger of a black hole binary carry linear momentum. This results in an astrophysically important recoil to the final merged black hole, a ``kick'' that can eject it from the nucleus of a galaxy. In a previous paper we showed that the puzzling partial cancellation of an early kick by a late antikick, and the dependence of the cancellation on black hole spin, can be understood from the phenomenology of the linear momentum waveforms. Here we connect that phenomenology to its underlying cause, the spin-dependence of the inspiral trajectories. This insight suggests that the details of plunge can be understood more broadly with a focus on inspiral trajectories.
description: 15 pages, 12 figures
Two-dimensional Minkowski causal automorphisms and conformal maps
Creators: name: Burgos, Juan Manuel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Treating the two-dimensional Minkowski space as a Wick rotated version of the complex plane, we characterize the causal automorphisms in two-dimensional Minkowski space as the Märzke-Wheeler maps of a certain class of observers. We also characterize the differentiable causal automorphisms of this space as the Minkowski conformal maps whose restriction to the time axis belongs to the class of observers mentioned above. We answer a recently raised question about whether causal automorphisms are characterized by their wave equation. As another application of the theory, we give a proper time formula for accelerated observers which solves the twin paradox in two-dimensional Minkowski spacetime.
description: 13 pages, 3 figures. Published under minor corrections in Classical and Quantum Gravity
Control of multiple tele-operated Robotic Bridge Transporters for remote handling of hazardous material
Creators: name: Venkatesh, T. R
Publisher: name: University of Nevada, Las Vegas
Year: 2000

description: The objective of this research is to develop control of a multiple telerobot system based on Direct Numerical Processing Technology and propose a practically implementable collision avoidance algorithm for two gantry type robots sharing a common workspace; The tele-operatic set-up consists of two Robotic Bridge Transporters which are X-Y-Z positioning overhead bridge type cranes. These cranes consisting of three sub-assemblies for the X, Y and Z motions respectively are actuated by brushless servo drive motors. The DC motors are controlled by Modicon FA3240 automation controllers from a supervisory control station equipped with computer graphics based human-machine interface. Teleoperation is achieved through a programmable logic controller which acts as a command arbiter and data interface between the automation controllers and the supervisory control station computer; The collision avoidance algorithm proposes a collision free approach for a given path, by means of a minimum delay time technique for the two robots. Two examples, one each for a single segment and a two segment path for the two robots were tried out and found to work satisfactorily. The same can be extended to several segments as may be needed. The implementation methodology has been discussed.
Critical behavior of self-assembled rigid rods on two-dimensional lattices: Bethe-Peierls approximation and Monte Carlo simulations
Creators: name: López, L. G.
name: Linares, D. H.
name: Ramirez-Pastor, A. J.
name: Stariolo, D. A.
name: Cannas, S. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The critical behavior of adsorbed monomers that reversibly polymerize into linear chains with restricted orientations relative to the substrate has been studied. In the model considered here, which is known as self-assembled rigid rods (SAARs) model, the surface is represented by a twodimensional lattice and a continuous orientational transition occurs as a function of temperature and coverage. The phase diagrams were obtained for the square, triangular and honeycomb lattices by means of Monte Carlo simulations and finite-size scaling analysis. The numerical results were compared with Bethe-Peierls analytical predictions about the orientational transition for the square and triangular lattices. The analysis of the phase diagrams, along with the behavior of the critical average rod lengths, showed that the critical properties of the model do not depend on the structure of the lattice at low temperatures (coverage), revealing a one-dimensional behavior in this regime. Finally, the universality class of the SAARs model, which has been subject of controversy, has been revisited.
description: paper (13 pages, 8 figures); supplementary information (17 pages)
Cosmological Constraints from applying SHAM to rescaled cosmological simulations
Creators: name: Simha, Vimal
name: Cole, Shaun
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We place constraints on the matter density of the Universe and the amplitude of clustering using measurements of the galaxy two-point correlation function from the Sloan Digital Sky Survey (SDSS). We generate model predictions for different cosmologies by populating rescaled N-body simulations with galaxies using the subhalo abundance matching (SHAM) technique. We find Omega-M = 0.29 +/- 0.03 and sigma-8 = 0.86 +/- 0.04 at 68% confidence from fitting the observed two-point galaxy correlation function of galaxies brighter than M_r = -18 in a volume limited sample of galaxies obtained by the SDSS. We discuss and quantify potential sources of systematic error, and conclude that while there is scope for improving its robustness, the technique presented in this paper provides a powerful low redshift constraint on the cosmological parameters that is complementary to other commonly used methods.
description: 10 pages, 11 figures, submitted to MNRAS
Траянові вали Середнього Подністров’я
Creators: name: Кучера, Михайло
Publisher: name: figshare
Year: 2022
Subjects: Archaeology

description: Кучера, М. П. 1990. Траянові вали Середнього Подністров’я. В: Лавренюк, В. А. (гол. редкол.). Перша Тернопільська обласна наукова історико-краєзнавча конференція. Тези доповідей і повідомлень. Тернопіль, 1990. Ч. 1. Тернопіль (б. в.), с. 48–49.
Interpolation and model reduction of nonlinear systems in the Loewner framework
Creators: name: Simard, Joel
Publisher: name: Imperial College London
Year: 2022

description: This thesis studies the problem of interpolation and model order reduction for dynamical systems, with the primary objective being the development of an enhancement of the Loewner framework for general families of nonlinear differential-algebraic systems. First, an interconnection-based interpretation of the Loewner framework for linear time-invariant systems is developed. This interpretation does not rely on frequency domain notions, yielding a natural approach for enhancement of the Loewner framework to more complex systems possessing nonlinear dynamics. Next, the interconnection-based interpretation is used to develop the framework, first for systems of nonlinear ordinary differential equations, then for systems of nonlinear differential-algebraic equations, and interpolants are constructed using the so-called tangential data mappings and Loewner functions. Following this, parameterized families of systems interpolating the tangential data mappings are given. The problem of constructing interpolants from tangential data mappings and Loewner functions is considered in the most general scenario, and a dynamic extension approach to interpolant construction is developed. As a result, all systems matching the tangential data mappings, and having dimension at least as large as that of the auxiliary interpolation systems, are parameterized under mild conditions. Hence, if an interpolant exists while possessing additional desired properties, then it is contained in the dynamically extended family of interpolants. Finally, the use of behaviourally equivalent representations of a system is investigated with the goal of selecting a representation having less stringent conditions guaranteeing the existence of solution to partial differential equations. This is accomplished for a class of semi-explicit nonlinear differential-algebraic systems by making use of the explicit algebraic constraints to simplify the model of the system.
Effect of the inflammatory mediator TNF-alpha on colorectal cancer epithelial cells development and metastasis, role of ietary carcinogens and miRNA
Creators: name: Alotaibi, Aminah Ghazi
Publisher: name: Imperial College London
Year: 2022

description: Colorectal cancer (CRC) is the third most common cancer world-wide and second leading cause of mortality. The majority of CRC cancer cases result from epigenetic and genetic alterations that promote development and metastasis of the disease. Exposure to environmental and dietary carcinogens are strongly associated with CRC. Also, inflammatory mediators are known as a major risk factor for CRC, however the underlying mechanisms are still understudied. Upregulation of pro-inflammatory mediators and dysregulation of miRNAs in the tumour microenvironment (TME) have been observed in CRC. Tumour necrosis factor alpha (TNF-α) is a pleiotropic cytokine thought to play numerous roles in tumour progression including epigenetic gene regulation, activation of tumour promoting signalling pathways, thus presence of TNF- in CRC tumour microenvironment may be key to promoting CRC progression. I hypothesise that the presence of TNF- α in the TME could regulate miRNAs and enzyme expression to induce DNA damage caused by dietary carcinogens, thereby stimulating changes that promote CRC development and metastasis. The present study investigated this hypothesis through a mechanistic approach with in vitro cell line culture. Effects of TNF-α on phenotypic changes were observed and the potential involvement of miRNAs were determined. The results showed that TNF-α enhances dietary carcinogen-induced DNA damage through activation of JNK signalling pathway. Also, TNF-α induced metastatic phenotype cell proliferation and migration through miRNA regulation. Moreover TNF-α regulated expression of CYP450 enzymes through miRNA regulation, which can promote chemical carcinogen genotoxicity. Taken together, the data indicated that CRC progression and metastasis may be related to epigenetic and inflammatory mediators active at the tumour site. Understanding these molecular mechanisms could provide better prevention and therapeutic strategies.
Black holes from generalized gauge field theories
Creators: name: Diaz-Alonso, J.
name: Rubiera-Garcia, D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We summarize the main results of a broad analysis on electrostatic, spherically symmetric (ESS) solutions of a class of non-linear electrodynamics models minimally coupled to gravitation. Such models are defined as arbitrary functions of the two quadratic field invariants, constrained by several physical admissibility requirements, and split into different families according to the behaviour of these lagrangian density functions in vacuum and on the boundary of their domains of definition. Depending on these behaviours the flat-space energy of the ESS field can be finite or divergent. For each model we qualitatively study the structure of its associated gravitational configurations, which can be asymptotically \emph{Schwarzschild-like} or with an anomalous \emph{non Schwarzschild-like} behaviour at $r \rightarrow \infty$ (but being asymptotically flat and well behaved anyhow). The extension of these results to the non-abelian case is also briefly considered.
description: 8 pages, 2 figures, contribution to NED14 Proceedings
Trace element analysis of selected springs in the Virgin River Basin
Creators: name: Yelken, Mary Ann
Publisher: name: University of Nevada, Las Vegas
Year: 1991

description: Spring water from 23 springs in and near the Virgin River Basin (southwestern Utah, northwestern Arizona, and southeastern Nevada) was collected and analyzed for chemical concentrations. Trace elements and major ion chemistry was used to determine the potential for utilizing water chemistry to provide information on spring water source and flow pathways. Principal Component Analysis (PCA), rare earth element (REE) normalization patterns, and mineral equilibrium modeling (PHREEQE) techniques were used to analyze the data set. Four major spring water groups were displayed by the PCA, based on similarities in water chemistry. The analyses suggest that spring water chemistry is a result of interactions with the rocks through which the waters flow. The usefulness of the water chemistry to suggest actual spring source and flow pathways in the Virgin River Basin was limited due to the small number of sampling sites relative to the large areal extent of the basin.
A self-stabilizing distributed maximum flow algorithm
Creators: name: Zhou, Yan
Publisher: name: University of Nevada, Las Vegas
Year: 1995

description: This thesis presents a self-stabilizing distributed maximum flow algorithm for a network G = (V, E), where V is a set of nodes in the network and E is a set of edges in the network. The algorithm has two phases: reset phase and preflow-push phase. Fault-tolerance is achieved by using a self-stabilizing paradigm that uses non-masking fault-tolerance embedded repetitions within the algorithm. Two techniques are used in the algorithm, Counter flushing is used to synchronize the network; both local checking and local correction are used to compute the maximum flow of the network. The algorithm handles catastrophic faults by weeding out false information in the network. A network can start with any arbitrary global state and will recover to a legal global state in finite number of steps. Lastly, the network guarantees to restore the legal configuration from any catastrophic faults.
Probing the Origins of Two-State Folding
Creators: name: Lane, Thomas J.
name: Schwantes, Christian R.
name: Beauchamp, Kyle A.
name: Pande, Vijay S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Many protein systems fold in a two-state manner. Random models, however, rarely display two-state kinetics and thus such behavior should not be accepted as a default. To date, many theories for the prevalence of two-state kinetics have been presented, but none sufficiently explain the breadth of experimental observations. A model, making a minimum of assumptions, is introduced that suggests two-state behavior is likely for any system with an overwhelmingly populated native state. We show two-state folding is emergent and strengthened by increasing the occupancy population of the native state. Further, the model exhibits a hub-like behavior, with slow interconversions between unfolded states. Despite this, the unfolded state equilibrates quickly relative to the folding time. This apparent paradox is readily understood through this model. Finally, our results compare favorable with experimental measurements of protein folding rates as a function of chain length and Keq, and provide new insight into these results.