cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Short-Term Effects of the PoliswabR on Supramarginal Bacterial Plaque Removal and Gingival Health in a Spinal Cord Unit Population
Creators: name: McKinney, Beth Elaine
Publisher: name: Old Dominion University Libraries
Year: 1991

description: The purpose of this investigation was to determine the short-term efficacy of a mechanical device (PoliswabR) on supramarginal bacterial plaque removal and gingival health. The sample consisted of 15 residents in a spinal cord unit at the Hampton Veterans' Affairs Medical Center. A single blind, split-mouth, pretest-posttest design was used in the study with each subject serving as his own control. Over a two week period, each participant had his teeth cleaned once daily by a dental hygienist using a PoliswabR containing sodium bicarbonate and dentifrice on one side of the mouth and a toothbrush without dentifrice on the opposite side. The Navy Plaque Index and the Loe and Silness Gingival Index were recorded on each participant at baseline and two weeks after initiation of the study. Data were analyzed using t-tests for dependent samples (alpha set at 0.05) to determine the effectiveness of the PoliswabR as compared to the toothbrush in removing supramarginal bacterial plaque and its effect on gingival health. Results showed the PoliswabR to be as effective as the toothbrush in supramarginal bacterial plaque removal. No statistically significant changes in gingival health were noted in either group.
Bringing in Large Scale Technological Change: A Case Study
Creators: name: Keng, Govan
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Education--Technology
subject: Technological Change
subject: Change Leadership
subject: Change Implementation
subject: Innovation Diffusion
subject: Change Enablers
subject: Change Impediments

description: This qualitative case study explored the broad issue of how to successfully bring about large-scale technological change, and more specifically it examined the factors involved in technological change adoption. The research question was “What are the factors that enabled or impeded the wide-scale implementation of a student information system in a large, complex urban school district?” The setting for this case study was the educational sites of the Vancouver Board of Education. The case involved the implementation of an electronic student information system called the British Columbia enterprise Student Information System or BCeSIS. Participants in this study included four key members of the change implementation team and 186 people who were directly impacted by the change initiative. From the data, the following six findings emerged of which the first four factors enabled a technological change and the last two factors hindered the change: 1) an independent implementation team, 2) distributed leadership, 3) pilot/phased implementation schedule, 4) a customized training system, 5) lack of technological infrastructure/readiness, and 6) lack of comprehensive/cohesive messaging and communications. From the findings, four key conclusions were drawn: 1) a change implementation plan should be of a heuristic iterative design, 2) a prototype implementation model be used, 3) leadership density be created, and 4) change initiatives and strategies work best when they are institution specific.
New quantum-mechanical phenomenon in a model of electron-electron interaction in graphene
Creators: name: Lee, R. N.
name: Milstein, A. I.
name: Terekhov, I. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A quantum mechanical model of two interacting electrons in graphene is considered. We concentrate on the case of zero total momentum of the pair. We show that the dynamics of the system is very unusual. Both stationary and time-dependent problems are considered. It is shown that the complete set of the wave functions with definite energy includes the new functions, previously overlooked. The time evolution of the wave packet, corresponding to the scattering problem setup, leads to the appearance of the localized state at large time. The asymptotics of this state is found analytically. We obtain the lower bound of the life time of this state, which is connected with the breakdown of the continuous model on the lattice scale. The estimate of this bound gives one a hope to observe the localized states in the experiment.
description: 10 pages, 2 figures
Discrete integrable systems associated with deformations of cluster maps
Creators: name: Kim, Wookyung
Publisher: name: Lancaster University
Year: 2024

description: In this thesis, we study a discrete dynamical system provided by the
 deformation of cluster mutations associated with cluster algebras of
 finite Dynkin diagrams of type A_{2N} (N ≥ 3), C_2(∼= B_2), B_3, B_4, D_4
 and D_6. In the first part of the thesis, we show that the corresponding
 cluster algebras exhibit a remarkable periodicity phenomenon, known as
 Zamolodchikov periodicity. We present a particular deformation, which is a
 novel approach introduced by Hone and Kouloukas. This procedure modifies
 cluster mutation in such a way that it preserves the natural presymplectic
 form in cluster algebras. For the cases of type C_2, B_3, D_4, we
 construct Liouville integrable maps defined by the specific composition of
 deformed cluster mutations and show that the new cluster algebras emerge
 by considering Laurentification, which is a lifting of the map into a
 higher-dimensional space where the Laurent property is exhibited. The
 corresponding deformed integrable maps are also closely related to
 Somos-type recurrences.

 In particular, we prove the integrability of the birational map defined by
 a sequence of mutations in cluster algebra of type A_{2N} . We examine the
 deformation of discrete dynamics in cluster algebra of type A_6 and
 compare the result associated with the type A_4 case. Following this, we
 introduce a local expansion operation on quivers, which provides a special
 family of quivers corresponding to specific types of cluster algebras. We
 demonstrate that these cluster algebras are obtained by lifting the
 deformation of type A_{2N} maps via Laurentification. We also show that
 the discrete dynamics in the new cluster algebras, induced from cluster
 algebras of type A_{2N}, B_4 and D_6 via deformation, admit the tropical
 (max-plus) analogue of the system of homogeneous recurrences. This allows
 us to calculate the exact degree growth of the discrete dynamical system.
The role of the conscious self in the Meaning Maintenance Model and other theories of threat compensation
Creators: name: Randles, Daniel
Publisher: name: University of British Columbia
Year: 2010

description: There are currently a number of competing theories of threat compensation, which attempt to explain why humans affirm schemas and cultural worldviews following events that are distressing, anomalous or unexpected. Central to many of these theories is the role affirmations play in preserving self-identity. The Meaning Maintenance Model is one threat compensation theory that does not require the self to be threatened, in that it claims any violation of expectations is threatening, even those that are not directly related to the self, nor are necessarily consciously perceived. The role of the self as a necessary mediator between the perception of threat and evoked response is empirically tested in three studies. Results show that a subliminal presentation of incoherent word pairs can produce the same type of schema affirmation seen with other explicit and implicit threatening stimuli. Furthering this, the same subliminal threat also produces changes in behaviour that are not consciously directed, in this case by increasing implicit learning ability and working memory.
Molecular ordering of glycine on Cu(100): the p($2\times4$) superstructure
Creators: name: Hu, Zhi-Xin
name: Ji, Wei
name: Guo, Hong
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Glycine molecules deposited on Cu(100) surface give rise to an anisotropic free-electron-like (FEL) electronic dispersion in its p(2$\times$4) superstructure, as reported in recent experiments [Phys. Rev. Lett. {\bf 99}, 216102 (2007); J. Am. Chem. Soc. {\bf 129}, 740 (2007)]. Using density functional theory and exhaustively calculating sixteen possible structures, we have determined the molecular arrangement that can give the experimentally observed FEL behavior. Eight configurations, among the sixteen, were not investigated before in the literature and one of them (denoted Str-3) is able to provide the FEL behavior in excellent agreement with the experiments. In addition, the particular configuration Str-3 satisfies other criteria of the observed p(2$\times$4) superstructure, e.g. chirality and cleavable orientation.
description: 7 pages, 4 figures, 3 tables
Mechanism of Ferroelectricity in $d^3$ Perovskites - a Model Study
Creators: name: Barone, Paolo
name: Kanungo, Sudipta
name: Picozzi, Silvia
name: Saha-Dasgupta, Tanusri
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: By means of a model Hamiltonian approach we study the role of volume expansion, Hund's coupling and electron correlation in the standard hybridization mechanism for ferroelectricity in cubic CaMnO$_3$, a prototypical non-$d^0$ perovskite. Our results establish that the ferroelectric instability arises from a subtle balance between different energy contributions, explaining the origin of its enhancement under negative pressure. Expansion of volume is found to cause a strong reduction of the elastic energy, while leaving almost unchanged the tendency of Mn states to form covalent bonds with the surrounding oxygens. Hund's coupling with local spins of magnetic cations can reduce and even suppress the instability towards the ferroelectric state.
description: 7 pages, 5 figures
Mermin's Pentagram as an Ovoid of PG(3,2)
Creators: name: Saniga, Metod
name: Levay, Peter
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Mermin's pentagram, a specific set of ten three-qubit observables arranged in quadruples of pairwise commuting ones into five edges of a pentagram and used to provide a very simple proof of the Kochen-Specker theorem, is shown to be isomorphic to an ovoid (elliptic quadric) of the three-dimensional projective space of order two, PG(3,2). This demonstration employs properties of the real three-qubit Pauli group embodied in the geometry of the symplectic polar space W(5,2) and rests on the facts that: 1) the four observables/operators on any of the five edges of the pentagram can be viewed as points of an affine plane of order two, 2) all the ten observables lie on a hyperbolic quadric of the five-dimensional projective space of order two, PG(5,2), and 3) that the points of this quadric are in a well-known bijective correspondence with the lines of PG(3,2).
description: 5 pages, 4 figures
Measurement of brain oxygenation and metabolism in a mouse model of multiple sclerosis
Creators: name: Johnson, Thomas Wade
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Neuroscience
subject: Optics
subject: Engineering--Biomedical
subject: Multiple sclerosis
subject: magnetic resonance imaging
subject: Brain metabolism
subject: Hypoxia
subject: Near-infrared spectroscopy
subject: NIRS
subject: Cerebral metabolic rate for oxygen
subject: CMRO2
subject: Experimental autoimmune encephalomyelitis

description: Multiple sclerosis is a disease of the central nervous system, predominantly thought of as a white matter (WM) disease. However, evidence of the importance of grey matter (GM) involvement is beginning to accumulate. In this study, we set out to investigate whether altered oxygenation and metabolism was present in cortical and cerebellar brain GM using an auto-inflammatory mouse model of multiple sclerosis, experimental autoimmune encephalomyelitis (EAE). Chronically implanted optical PO2 probes directly measured the tissue oxygen environment in GM in awake, unrestrained mice. Near-infrared spectroscopy (NIRS) and magnetic resonance imaging (MRI) were used to detect hemoglobin oxygen saturation and blood flow in anaesthetized mice. This required the development of NIRS technologies to guide GM imaging. Numerical simulations were performed to determine NIRS sensitivity to brain tissue types in mice, rats and humans. NIRS on mice and rats is very sensitive to GM tissue in comparison to humans, and the region imaged can be determined through inter-fibre separation. Optical fibres were developed and their compatibility tested for use in a 9.4 T MRI system to enable simultaneous NIRS and MRI measurements on mice. The NIRS-MR system was validated by detecting changes in the cerebral metabolic rate for oxygen (CMRO2) when mice were subjected to hypothermia. Hypoxia, as measured by PO2 probes, was present in the cortex and cerebellum in approximately 50% of EAE mice, occurred much more frequently than hyperoxia, correlated with increased behavioural deficits and occurred before behavioural deficits appeared. NIRS-MR measurements found decreased cerebral blood flow, increased oxygen extraction fraction and constant CMRO2 at peak disease in EAE mice with high behavioural scores and inflammation-positive controls; no changes were found in naive controls. Some of these changes correlated with behavioural deficit. GM atrophy was observed in the cerebellar cortex, medulla and thalamus. Overall this study showed that NIRS-MR can detect changes in CMRO2 in mice, GM pathology exists in the EAE model and can be detected, and may be related to inflammation.
title: DMEK – Herausforderungen: präoperativ, intraoperativ, postoperativ
Creators: name: Kupferschmid, S.
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Die selektive Transplantation der Descemet-Membran bei Erkrankungen des Endothels hat sich in den vergangenen Jahren etabliert und hat für diese Erkrankungen die perforierende Keratoplastik weitgehend ersetzt. Diese Entwicklung stellt besondere Herausforderungen an die Operateure, aber auch an [zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 93. Versammlung des Vereins Rhein-Mainischer Augenärzte
Neural BSSRDF: Object Appearance Representation Including Heterogeneous Subsurface Scattering
Creators: name: TG, Thomson
name: Frisvad, Jeppe Revall
name: Ramamoorthi, Ravi
name: Jensen, Henrik Wann
Publisher: name: arXiv
Year: 2023
Subjects: subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences

description: Monte Carlo rendering of translucent objects with heterogeneous scattering properties is often expensive both in terms of memory and computation. If we do path tracing and use a high dynamic range lighting environment, the rendering becomes computationally heavy. We propose a compact and efficient neural method for representing and rendering the appearance of heterogeneous translucent objects. The neural representation function resembles a bidirectional scattering-surface reflectance distribution function (BSSRDF). However, conventional BSSRDF models assume a planar half-space medium and only surface variation of the material, which is often not a good representation of the appearance of real-world objects. Our method represents the BSSRDF of a full object taking its geometry and heterogeneities into account. This is similar to a neural radiance field, but our representation works for an arbitrary distant lighting environment. In a sense, we present a version of neural precomputed radiance transfer that captures all-frequency relighting of heterogeneous translucent objects. We use a multi-layer perceptron (MLP) with skip connections to represent the appearance of an object as a function of spatial position, direction of observation, and direction of incidence. The latter is considered a directional light incident across the entire non-self-shadowed part of the object. We demonstrate the ability of our method to store highly complex materials while having high accuracy when comparing to reference images of the represented object in unseen lighting environments. As compared with path tracing of a heterogeneous light scattering volume behind a refractive interface, our method more easily enables importance sampling of the directions of incidence and can be integrated into existing rendering frameworks while achieving interactive frame rates.
title: Der Einfluss der deutschen Luftwaffe auf die Entwicklung der Ophthalmochirurgie
Creators: name: Wenzel, M.
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Die militärische Luftfahrt ist für zwei Entwicklung im medizinischen Bereich von großer Bedeutung, die heute noch die Augenheilkunde prägen: Die Implantation von Kunstlinsen aus Plexiglas und die Herstellung von Kortison. 1. Entwicklung bis 1939 Das erste Flugzeug mit einer[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 93. Versammlung des Vereins Rhein-Mainischer Augenärzte
The Effect of Leishmania Donovani Cathepsin B on Transforming Growth Factor Beta-1 Activation and Regulation of Inducible Nitric Oxide Synthase and Arginase Activity Inside the Macrophages
Creators: name: Murtatha, Asel
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Biology
subject: Biology--Cell
subject: Microbiology
subject: FOS: Biological sciences
subject: Biology--Molecular
subject: Parasitology
subject: Host
subject: Pathogen
subject: Interaction
subject: Leishmania
subject: Parasite

description: Leishmania parasites contain high level of cathepsin B and cathepsin L like cysteine proteases. The anti-inflammatory immune response depends mainly on the interleukin-10 (IL-10) and transforming growth factor beta-1 (TGF-β1) production. This study elucidated the role of L.donovani cathepsin B on L donovani parasites survival and multiplication. Our data suggest that cathepsin B could play a role in activating latent TGF-β1 in vitro and inside the macrophages. Our data also suggest that L.donovani cathepsin B could facilitate the parasite survival inside the macrophages via inhibiting iNOS and enhancing arginase expression. Exosomes, which are secreted vesicles, are important in cell to cell communication. We found that cathepsin B could be exported through L.donovani exosomes and could also activate TGF-β1 in vitro and inside the macrophages. Moreover, we found that L.donovani exosomes could deactivate macrophages and enhance the parasites survival inside macrophages.
title: Klinische Sicht auf den zivilen und militärischen Laserschutz
Creators: name: Weinand, F.
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Der Schutz vor direkter oder indirekter Laserstrahlung wird im Zivilen durch Schutzbrillen und Maßnahmen am Aufstellungsort des Lasers gewährleistet. Im militärischen Umfeld entstehen Laserstrahlen z.B. im Rahmen von Entfernungsmessungen militärischer Geräte aber auch zunehmend[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 93. Versammlung des Vereins Rhein-Mainischer Augenärzte
title: Submakuläre Blutung – 10 Jahre Erfahrung mit subretinaler Ko-Applikation von rtPA und Bevacizumab
Creators: name: Treumer, F.
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Die operative Behandlung der submakulären Blutung bei exsudativer AMD ist nicht standardisiert und es gibt keine klaren Empfehlungen der Fachgesellschaften. Die chirurgischen Optionen reichen von einfachen intravitrealen anti-VEGF Injektionen bis zu komplexen vitreo-retinalen Eingriffen in Form[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 93. Versammlung des Vereins Rhein-Mainischer Augenärzte
title: Minimalinvasive Tränenwegschirurgie – Neue Ansätze
Creators: name: Lang, M.
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: In der heutigen Zeit ist vor allem das Thema Hygiene in aller Munde. Und auch bei Kollegen, welche bei uns hospitieren, ist das Thema Instrumenten- bzw. Endoskop-Aufbereitung das größte Fragezeichen. Insgesamt kennt man die Diskussion um die suffiziente Aufbereitung von Endoskopen vor allem[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 93. Versammlung des Vereins Rhein-Mainischer Augenärzte
title: Was gibt es Neues zum ‚Pachychoroid-Krankheitsspektrum‘?
Creators: name: Abdin, A. D.
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Die pachychoroidalen Erkrankungen sind alle durch eine Verdickung der Aderhaut (>300 µm) gekennzeichnet. Die Gruppe umfasst die folgenden Krankheitsgruppen: pachychoroidale Pigmentepitheliopathie (PPE), Chorioretinopathia centralis serosa (CCS), pachychoroidale Neovaskulopathie (PNV), polypoidale[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 93. Versammlung des Vereins Rhein-Mainischer Augenärzte
title: Akute Abduzensparese mit inkompletter Okulomotoriusparese beidseits – warum?
Creators: name: Lenz, J.
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Anamnese/Fallbeschreibung: An einem Freitagabend habe der Patient (m, 26 Jahre, keine Grunderkrankung, keine Allergien, berufstätig, wohnt bei seiner Mutter) sich lediglich ein Eishockeyspiel angeschaut. Nachdem er dann am Samstagmorgen aufgewacht sei (12:00 Uhr) habe er eine Abweichung der[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 93. Versammlung des Vereins Rhein-Mainischer Augenärzte
title: Unklare entzündliche Oberlidschwellung
Creators: name: Birzer, A.
name: Weinand, F.
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Eine 68-jährige Patientin stellte sich mit seit einer Woche bestehender zunehmender Schwellung und Überwärmung des rechten Oberlides und Ptosis freitags notfallmäßig vor. Schmerzen wurden verneint. Vor 2,5 Monaten war eine Tumordefektdeckung mit Oberlidhaut im Bereich des Nasenrückens[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 93. Versammlung des Vereins Rhein-Mainischer Augenärzte
title: Das rote Auge als die Spitze des Eisbergs
Creators: name: Rosenmüller, F.
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Es wurde uns ein Patient (männlich, 28 J.) aus dem Fachbereich Dermatologie zur konsiliarischen Mitbeurteilung vorgestellt. Der Patient erschien dort zur Abklärung neu aufgetretener rötlich-erythematöser Plaques im Brust- und Kniekehlenbereich. Weitere Plaques bestanden im Bereich[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 93. Versammlung des Vereins Rhein-Mainischer Augenärzte
Ο Πολυέλεος «Δούλοι Κύριον» Ιωάσαφ Διονυσιάτου σε ήχο Πλάγιο του Τετάρτου. Ερμηνεία και εκτέλεση
Creators: name: Μένος, Ιωάννης Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Πολυέλεος
Ιωάσαφ Διονυσιάτης
Ερμηνεία και Εκτέλεση
Polyeleos
Ioasaf Dionysiatis
Interpretation and Performance

description: Στο πρώτο κεφάλαιο της εργασίας παρουσιάζονται βιογραφικά στοιχεία του Ιωάσαφ Διονυσιάτου, καθώς και πληροφορίες σχετικά με τον ρλδ΄ ψαλμό και την ευρύτερη ενότητα του είδους του πολυελέου. Επίσης, πραγματοποιείται ιστορική ανασκόπηση της περιόδου κατά την οποία ζει και δρα ο Ιωάσαφ, ενώ στο τέλος του κεφαλαίου ακολουθεί η παρουσίαση του έργου του. Στο δεύτερο κεφάλαιο πραγματοποιείται η ανάλυση του πολυελέου «Δούλοι Κύριον» του Ιωάσαφ Διονυσιάτου σε ήχο Πλάγιο του Τετάρτου. Για την κατανόηση του νοήματος του ποιητικού κειμένου υπάρχει η μετάφραση των στίχων του ψαλμού και του δοξαστικού μαθήματος στην νεοελληνική. Στα πλαίσια της ερμηνείας και εκτέλεσης, πραγματοποιείται μουσικολογική ανάλυση ορισμένων στίχων, καθώς και του δοξαστικού μαθήματος του πολυελέου, ενώ διαθέσιμη βρίσκεται σε ψηφιακή μορφή, ηχογράφηση της φωνητικής εκτέλεσης των παραπάνω μελών.
description: In the first chapter of the work, biographical details of Ioasaf Dionysiatis are presented, as well as information about the 134th psalm and the broader unity of the «polyeleos» genre. Also, a historical review of the period in which Ioasaf lived and worked is carried out, while at the end of the chapter we refer to his work. In the second chapter, the analysis of the «polyeleos» "Servants of the Lord" by Ioasaf Dionysiatis in mode IV plagal is carried out. To understand the meaning of the poetic text, there is the translation of the verses of the psalm and the lesson of «doxastiko» into modern Greek. In the context of the interpretation and performance, a musicological analysis of some verses is carried out, as well as the lesson of «doxastiko» while a recording of the vocal performance of the above compositions is available in digital format.
title: Spontane massive makuläre Blutung bei einem 25-jährigen Patienten
Creators: name: Maamri, A.
name: Abdin, A.D.
name: Seitz, B.
name: Suffo, S.
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: Eine retinale makuläre Blutung beim jungen Patienten mit einem zuvor gesunden Auge ist selten. Hier kommen Trauma, retinale Vaskulitis und Terson-Syndrom in Verdacht. Die Valsalva-Retinopathie ist eine sehr seltene Ursache. Kasuistik: Ein 25-jähriger Patient stellte sich notfallmäßig[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 93. Versammlung des Vereins Rhein-Mainischer Augenärzte
Απόψεις εκπαιδευτικών πρωτοβάθμιας εκπαίδευσης για τα επιμορφωτικά προγράμματα που υλοποιήθηκαν στην περίοδο της πανδημίας με θέμα την εξ αποστάσεως εκπαίδευση
Creators: name: Καρακατσάνη, Βασιλεία Πολύκλειτου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Εξ αποστάσεως επιμόρφωση
Επιμόρφωση εκπαιδευτικών
Επιμορφωτικά προγράμματα
Τ4Ε
Distance training
Teacher training
Teacher professional development
Emergency remote training

description: Η παρούσα διπλωματική εργασία έχει ως αντικείμενο τη διερεύνηση των απόψεων των εκπαιδευτικών πρωτοβάθμιας εκπαίδευσης για τα ταχύρρυθμα προγράμματα επιμόρφωσης που πραγματοποιήθηκαν κατά τη διάρκεια της περιόδου της πανδημίας με θέμα τη σχολική εξ αποστάσεως εκπαίδευση. Πιο συγκεκριμένα η μελέτη εστιάζει στην αποτίμηση των χαρακτηριστικών και της συνεισφοράς του προγράμματος «Ταχύρρυθμη επιμόρφωση εκπαιδευτικών στην εξ αποστάσεως Εκπαίδευση» (Τ4Ε). Σε μεθοδολογικό επίπεδο η επίτευξη του ανωτέρω ερευνητικού σκοπού υλοποιήθηκε μέσω της πραγματοποίησης ημιδομημένων συνεντεύξεων με 15 εκπαιδευτικούς πρωτοβάθμιας εκπαίδευσης, οι οποίοι αποτέλεσαν το δείγμα της έρευνας. Τα ευρήματα της μελέτης έδειξαν ότι οι εκπαιδευτικοί έκριναν το πρόγραμμα ως αξιόλογο και ποιοτικό από άποψη περιεχομένου. Ωστόσο σχολίασαν ότι επειδή το πρόγραμμα άργησε να υλοποιηθεί, αυτό μείωσε την αποδοτικότητά του. Οι γνώσεις και δεξιότητες που απέκτησαν δεν ήταν σημαντικές, και η υποστήριξη από το σχολικό πλαίσιο θεωρήθηκε ελάχιστη. Εν τέλει, δεν κατάφεραν να εφαρμόσουν στην πράξη όσα έμαθαν από την επιμόρφωση διότι την επόμενη σχολική χρονιά η εκπαίδευση διεκπεραιώθηκε διά ζώσης.
description: The aim of this dissertation refers to the investigation of primary school teachers’ views on the accelerated teacher training programs that took place during the Covid-19 pandemic regarding distance learning in schools. Specifically, this study focuses on assessing the features and contribution of the program “Accelerated training programs for teachers on distance learning” on the basis of Guskey’s theoretical framework for teacher professional development programs. On a methodological level, the study’s purpose was achieved through the implementation of semi-structured interviews with 15 primary education teachers, who participated in the research. The findings indicated that teachers found the content of the program interesting. However, they commented upon its reduced efficiency, due to its delayed implementation. The knowledge and skills acquired were not significant, while the support provided on the part of the schools was considered minimal. Eventually, they could not practice the things they learnt from the training program, as distance learning stopped from being practiced in the year following the training they received.
Cosmic acceleration and phantom crossing in $f(T)$-gravity
Creators: name: Farajollahi, H.
name: Ravanpak, A.
name: Wu, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Physics (physics.gen-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper, we propose two new models in $f(T)$ gravity to realize universe acceleration and phantom crossing due to dark torsion in the formalism. The model parameters are constrained and the observational test are discussed. The best fit results favors an accelerating universe with possible phantom crossing in the near past or future followed respectively by matter and radiation dominated era.
description: 20 pages, 18 figures, Will appear in Astrophys Space Sci
title: Ophthalmopathologische Ergebnisse eines SARS-COV-2-positiven Patienten
Creators: name: Schwarz, L.
name: Schmack, I.
name: Kohnen, T.
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: Systemisch nachgewiesene Infektionen im Körper können über den hämatogenen, lymphogenen oder neurogenen Weg Begleitreaktionen an den Augen auslösen. Dieser Fallbericht beschäftigt sich mit den ophthalmopathologischen Ergebnissen von okulären Geweben eines[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 93. Versammlung des Vereins Rhein-Mainischer Augenärzte
title: Routine-Gutachten mit Folgen
Creators: name: Erdmann, L.
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: In unserer Fachabteilung stellte sich ein 35-jähriger Patient zur Führerscheinbegutachtung vor. Die Perimetrie am rechten Auge zeigte eine infero-temporale Einengung des Gesichtsfeldes auf 50°. Ursächlich hierfür war eine ältere supero-nasale Amotio retinae. Die initiale[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 93. Versammlung des Vereins Rhein-Mainischer Augenärzte
First Science Observations with SOFIA/FORCAST: 6 TO 37 micron Imaging of Orion BN/KL
Creators: name: De Buizer, James M.
name: Morris, Mark R.
name: Becklin, E. E.
name: Zinnecker, Hans
name: Herter, Terry L.
name: Adams, Joseph D.
name: Shuping, Ralph Y.
name: Vacca, William D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The BN/KL region of the Orion Nebula is the nearest region of high mass star formation in our galaxy. As such, it has been the subject of intense investigation at a variety of wavelengths, which have revealed it to be brightest in the infrared to sub-mm wavelength regime. Using the newly commissioned SOFIA airborne telescope and its 5-40 micron camera FORCAST, images of the entire BN/KL complex have been acquired. The 31.5 and 37.1 micron images represent the highest resolution observations (<=4") ever obtained of this region at these wavelengths. These observations reveal that the BN object is not the dominant brightness source in the complex at wavelengths >31.5 microns, and that this distinction goes instead to the source IRc4. It was determined from these images and derived dust color temperature maps that IRc4 is also likely to be self-luminous. A new source of emission has also been identified at wavelengths >31.5 microns that coincides with the northeastern outflow lobe from the protostellar disk associated with radio source I.
description: 6 pages, 3 figures, accepted for publication in ApJL
title: Eine Uveitis anterior?
Creators: name: Flügel, M.
name: Schulz, M.
name: Gagalick, A.
name: Weinand, F.
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: Das Optikusgliom ist eine Form des pilozystischen Astrozytoms im Bereich des Nervus opticus. Es handelt sich um einen seltenen Hirntumor mit einer Inzidenz von 1:100.000, der ca. 2–5% aller Hirntumoren ausmacht. Ein Risikofaktor zur Entwicklung dieser Erkrankung ist die Neurofibromatose[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 93. Versammlung des Vereins Rhein-Mainischer Augenärzte
Three-Dimensional Spin-Orbit Coupling in a Trap
Creators: name: Anderson, Brandon M.
name: Clark, Charles W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate the properties of an atom under the influence of a synthetic three-dimensional spin-orbit coupling (Weyl coupling) in the presence of a harmonic trap. The conservation of total angular momentum provides a numerically efficient scheme for finding the spectrum and eigenfunctions of the system. We show that at large spin-orbit coupling the system undergoes dimensional reduction from three to one dimension at low energies, and the spectrum is approximately Landau level-like. At high energies, the spectrum is approximately given by the three-dimensional isotropic harmonic oscillator. We explore the properties of the ground state in both position and momentum space. We find the ground state has spin textures with oscillations set by the spin-orbit length scale.
PARTHENOS D7.1 Initial Training Plan
Creators: name: Edmond, Jennifer
name: Garnett, Vicky
name: Burr, Elisabeth
name: Läpke, Stefanie
name: Oltersdorf, Jenny
name: Goulis, Helen
Publisher: name: Zenodo
Year: 2016
Subjects: deliverable

description: This Initial Training Plan forms a summary of the work conducted by Work Package 7 up to May 2016. It incorporates the recommendations of user requirements investigations by members of Task 2.4, as well as additional background research by WP7 members into existing training programmes available within Digital Humanities (DH), and the outcomes of a workshop meeting held in Dublin in February 2016 comprising members of WP7 and DARIAH Teach to discuss the audience types within the DH community, the awareness of Research Infrastructures beyond the scope of the projects within PARTHENOS, and how best to raise awareness and provide training within those communities.

All PARTHENOS deliverables are available at: http://www.parthenos-project.eu/resources/projects-deliverables
PARTHENOS D7.1 Initial Training Plan
Creators: name: Edmond, Jennifer
name: Garnett, Vicky
name: Burr, Elisabeth
name: Läpke, Stefanie
name: Oltersdorf, Jenny
name: Goulis, Helen
Publisher: name: Zenodo
Year: 2016
Subjects: deliverable

description: This Initial Training Plan forms a summary of the work conducted by Work Package 7 up to May 2016. It incorporates the recommendations of user requirements investigations by members of Task 2.4, as well as additional background research by WP7 members into existing training programmes available within Digital Humanities (DH), and the outcomes of a workshop meeting held in Dublin in February 2016 comprising members of WP7 and DARIAH Teach to discuss the audience types within the DH community, the awareness of Research Infrastructures beyond the scope of the projects within PARTHENOS, and how best to raise awareness and provide training within those communities.
Transition Operators Entering Neutrinoles Double Electron Capture to Excited Nuclear States
Creators: name: Vergados, J. D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We construct the effective transition operators relevant for neutrinoless double electron capture leading to final nuclear states different than $0^{+}$. From the structure of these operators we see that, if such a process is observed experimentally, it will be very helpful in singling out the very important light neutrino mass contribution from the other lepton violating mechanisms
description: 9 LaTex pages, 2 figures, 1 table, references added
Investigation of the role of HACE1 in osteosarcoma
Creators: name: Clarkson, Paul William
Publisher: name: University of British Columbia
Year: 2010

description: Osteosarcoma is a malignancy of childhood that is characterized by extensive genomic disruption within the tumour cells. It is proposed to have a close relationship with normal osteoblast development. HACE1 is a gene located at 6q21 in humans that has been shown to be a potential tumour suppressor in a wide range of tumours. Disruption or loss of 6q21 is relatively common in osteosarcomas, and mice that are Hace1-/- and p53+/- develop osteosarcomas, amongst other tumour types, while those that are solely p53+/- do not. Immunohistochemistry revealed that a number of osteosarcomas exhibit low expression of HACE1 protein, and where expression is low the protein is restricted to the cytoplasm, while in normal osteoblasts and high-expressing osteosarcomas the expression is nuclear and cytoplasmic. FISH results showed reduced 6q21 copy number in 45% of cases in one series, and in a second series one case out of 16 possessed a disruption in the 6q21 region. To investigate HACE1’s role in osteosarcoma further we developed a novel model for human osteoblasts by harvesting and culturing cells from discarded bone taken as graft during adolescent scoliosis surgery. Comparing the expression of HACE1 in these osteoblastic cells to osteosarcoma cells showed reduced levels of expression in osteosarcoma cells using qRT-PCR, but not by western blot analysis. Re-expression of functionally normal HACE1 in osteosarcoma cells using a lentiviral system significantly altered their behaviour in soft agar assays, Matrigel assays and produced larger subcutaneous tumours in immunodeficient mice. We conclude that HACE1 has a role in osteosarcoma as a growth regulator, and possibly as a tumour suppressor.
Bayesian Option Pricing with Asymmetric Variance Processes
Creators: name: Zhu, Heng
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Statistics
subject: FOS: Mathematics
subject: NGARCH
subject: Risk Neutral
subject: Bayesian

description: Empirical studies have shown that financial time series exhibit negative skewness and excess kurtosis. GARCH models can be successfully used to model security returns. This thesis utilizes NGARCH and Normal Mixture NGARCH models to price options. The Gibbs sampling method is explained and implemented for parametric inference, and Bayesian inference results are compared with those obtained with Maximum Likelihood Estimates. Pricing option contracts requires the derivation of risk neutral return dynamics of the underlying asset. There is an infinite number of risk neutral measures under the incomplete market GARCH framework. In this thesis, we study the conditional Esscher transform and the Extended Girsanov Principle as the martingale measure candidates. We use the Radon Nikodym derivatives from both risk neutral measures to derive and compare the option prices for GARCH models based on Gaussian and Mixture of Gaussian innovations.
Functional Diversity and Abundances of the Lemur Community at Ranomafana National Park, Madagascar
Creators: name: Houston, Brianna Elyse
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Anthropology
subject: FOS: Sociology
subject: Ecology
subject: FOS: Biological sciences
subject: primates
subject: Lemur
subject: Diversity

description: Lemurs in Madagascar have been facing losses to population and diversity across the country, potentially resulting in a loss of functional and ecosystem diversity. While species diversity has long been studied, functional diversity allows us to more closely examine how abundances and traits of species are distributed in the community. I use lemur surveys conducted in 2004 at eight sites within Ranomafana National Park (RNP) to test the effects of habitat characteristics and anthropogenic disturbance on lemur functional diversity. In addition, I examine whether functional redundancy is present in the lemur community of RNP - that is, do multiple species fill similar functional roles. Niche separation should affect the traits present in the lemur community such that I expected functional redundancy to be low in most locations. Disturbance, elevation, and vegetation characteristics were all important factors in explaining functional diversity metrics. I found that most communities have low functional redundancy across all measures. I also resampled the site Valohoaka in 2015 to examine lemur abundances over time. The results suggest abundances have remained generally stable, however, Microcebus rufus abundances appear to be rising. Used in conjunction with individual species studies, the information presented here can be useful in understanding what is shaping lemur community composition and the sensitivity of these communities to environmental change. It is important to continue monitoring for long-term population trends and responses to both natural and anthropogenic change.
A Physiological Feedback Controlled Exercise Video Game
Creators: name: Baradoy, Graham
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Computer Science
subject: Exergame
subject: Active Video Game
subject: Physiological Feedback
subject: Exercise Video Game

description: Purpose: This thesis presents a proof-of-concept for the use of physiological feedback in active video games to control the heart rate of players. Rationale: Physiological feedback controls can be used to increase or decrease the physical demands of an active video game presented to the user. We introduce DanceBeat, a physiological feedback controlled active video game, designed with the intent to control players’ heart rates. Methods: A repeated measures crossover study was performed (n=23). Participants were exposed to two bouts of DanceBeat with target HRR zones corresponding to light and moderate intensity exercise. Results: The Light level kept participants within target zone 87(18)% of the time whereas the Moderate level kept participants in the zone 76(21)% of the time. The 95% confidence interval for mean HRR for both levels fell within the respective target zones. Significance: DanceBeat has the potential to be an entertaining and effective form of exercise.
title: ISOTOPIC AND GEOCHEMICAL TRACERS OF GROUNDWATER FLOW IN THE SHIVWITS PLATEAU, GRAND CANYON NATIONAL PARK
Creators: name: Wilson, Jonathan
Publisher: name: University of Kentucky Libraries
Year: 2020
Subjects: subject: FOS: Earth and related environmental sciences

description: As the impacts of global climate change on water resources continue to become more apparent, proper understanding and management of groundwater resources will be needed as supplies become more strained. Traditional methods of characterizing groundwater systems are time-intensive, costly, and can be difficult to complete in remote areas. Using ambient geochemical tracers from discrete sampling could aid in characterizing spring systems through determining flow paths, recharge areas, and carbon cycling. However, using discrete seasonal samples to understand the hydrogeology of complex, mixed-lithology aquifers has not been extensively examined. Here we explore using δ13C of dissolved organic carbon (DOC), δ13C of dissolved inorganic carbon (DIC) and fluorescent dissolved organic matter (fDOM), together with water isotopes, major ions, and geochemical modeling, to characterize springs of the Shivwits Plateau in Grand Canyon National Park. Values of carbon isotopes and fDOM for all springs reflect source values for regional surface vegetation and heterotrophic degradation of terrestrial DOM. Principal component analyses show that springs can be grouped into four groups by geochemical variability: 1) a shallow epikarst system, 2) a flow path through gypsiferous beds of the Toroweap Formation on the eastern side of the plateau, 3) a short, canyon slope runoff-dominated flow path through the Supai Group, and 4) a deeper complex flow system in the Redwall Limestone with characteristics of all other flow systems, which indicates mixing. Results show that the methods used can provide a simple conceptual model of a complex groundwater system, but higher–resolution spatial and temporal data are needed to fully understand changes resulting from changing climate. As appropriations from the Colorado River already exceed its annual streamflow and the regional climate is predicted to become more arid, characterizing groundwater resources for water supply will be paramount for the region as well as in other areas that will experience similar transitions.
description: © 2020 Jonathan W. Wilson
The Enhancement of Convective Heat Transfer in an Aluminum Oxide Nanoaerosol
Creators: name: Trivedi, Maulin
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Engineering--Aerospace
subject: Engineering--Mechanical
subject: Aluminum Oxide
subject: Nanoaerosol
subject: Heat Transfer
subject: Nusselt Number
subject: Knudsen Number

description: Hotwire experiments were performed to assess the effects of suspended 112 nm diameter aluminum oxide (Al2O3) nanoparticles in air on the rate of convective heat transfer. The particle mass loading was varied over a range of flow Reynolds number. The results indicate up to a 36% increase in Nusselt number for a particle mass loading of 0.35% at a Reynolds number of 6,000. The enhanced heat transfer rate is an order of magnitude larger compared to results from experiments reported in the literature using micro-particles at similar particle mass loadings. Existing models for prediction of Nusselt number increase for particle-gas suspensions are modified for use with nanoaerosols over a range of Knudsen number regime. The models and experimental data are found to predict same order of enhancement for nanoaerosol. The transitional model, for 0.01 < Kn < 10, is extended to predict effect of particle size on heat transfer gains.
Chaos and statistical relaxation in quantum systems of interacting particles
Creators: name: Santos, L. F.
name: Borgonovi, F.
name: Izrailev, F. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We propose a method to study the transition to chaos in isolated quantum systems of interacting particles. It is based on the concept of delocalization of eigenstates in the energy shell, controlled by the Gaussian form of the strength function. We show that although the fluctuations of energy levels in integrable and non-integrable systems are principally different, global properties of the eigenstates may be quite similar, provided the interaction between particles exceeds some critical value. In this case the quench dynamics can be described analytically, demonstrating the universal statistical relaxation of the systems irrespectively of whether they are integrable or not.
description: 5 pages, 5 figures