cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Joint Energy and Spectrum Cooperation for Cellular Communication Systems
Creators: name: Guo, Yinghao
name: Xu, Jie
name: Duan, Lingjie
name: Zhang, Rui
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Powered by renewable energy sources, cellular communication systems usually have different wireless traffic loads and available resources over time. To match their traffics, it is beneficial for two neighboring systems to cooperate in resource sharing when one is excessive in one resource (e.g., spectrum), while the other is sufficient in another (e.g., energy). In this paper, we propose a joint energy and spectrum cooperation scheme between different cellular systems to reduce their operational costs. When the two systems are fully cooperative in nature (e.g., belonging to the same entity), we formulate the cooperation problem as a convex optimization problem to minimize their weighted sum cost and obtain the optimal solution in closed form. We also study another partially cooperative scenario where the two systems have their own interests. We show that the two systems seek for partial cooperation as long as they find inter-system complementarity between the energy and spectrum resources. Under the partial cooperation conditions, we propose a distributed algorithm for the two systems to gradually and simultaneously reduce their costs from the non-cooperative benchmark to the Pareto optimum. This distributed algorithm also has proportional fair cost reduction by reducing each system's cost proportionally over iterations. Finally, we provide numerical results to validate the convergence of the distributed algorithm to the Pareto optimality and compare the centralized and distributed cost reduction approaches for fully and partially cooperative scenarios.
description: This is the longer version of a paper to appear in IEEE Transactions on Communications
title: Rechtsdurchsetzung der DSGVO: die Durchsetzung von Datenschutzverstößen mittels Lauterkeitsrecht und durch Verbandsklagen?
Creators: name: Sanjath, Laura Sophie
Year: 2023

description: In dieser Arbeit wird das Verhältnis zwischen Durchsetzungsmechanismen in der DSGVO und dem UWG erläutert. Die Praxis der Rechtsstreitigkeiten hat gezeigt, dass Datenschutzvorschriften, Verbraucherschutzrechte und das Verbot unlauterer Geschäftspraktiken in Lebenssachverhalten häufig miteinander verwoben sind. Wie mit diesen Überschneidungen bei der Durchsetzung etwaiger Ansprüche umgegangen werden soll, ist Gegenstand einer laufenden Debatte in der Literatur und Judikatur im deutschsprachigen Raum. Mit seiner jüngsten Entscheidung zu diesem Thema in der Rechtssache C-319/20 Meta Platforms Ireland klärt der EuGH zwar nicht alle offenen Fragen endgültig, aber gibt wertvolle Hinweise, wie die Zukunft der Rechtsdurchsetzung der DSGVO aussehen könnte. Verbandsklagen von Verbraucherseite werden auch im Hinblick auf die neue Verbandsklagenrichtlinie eine große Rolle spielen. Das Lauterkeitsrecht steht diesen grundsätzlich dafür offen. Ob auch Mitbewerber den Weg über das UWG gehen könnten, um Datenschutzverstößen zu unterbinden, bleibt gegenwärtig noch offen.
Computing decay rates for new physics theories with FeynRules and MadGraph5/aMC@NLO
Creators: name: Alwall, Johan
name: Duhr, Claude
name: Fuks, Benjamin
name: Mattelaer, Olivier
name: Ozturk, Deniz Gizem
name: Shen, Chia-Hsien
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present new features of the FeynRules and MadGraph5/aMC@NLO programs for the automatic computation of decay widths that consistently include channels of arbitrary final-state multiplicity. The implementations are generic enough so that they can be used in the framework of any quantum field theory, possibly including higher-dimensional operators. We extend at the same time the conventions of the Universal FeynRules Output (or UFO) format to include decay tables and information on the total widths. We finally provide a set of representative examples of the usage of the new functions of the different codes in the framework of the Standard Model, the Higgs Effective Field Theory, the Strongly Interacting Light Higgs model and the Minimal Supersymmetric Standard Model and compare the results to available literature and programs for validation purposes.
description: 32 pages, 2 figures. Published version
Light cones in Finsler spacetime
Creators: name: Minguzzi, E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Some foundational results on the geometry of Lorentz-Minkowski spaces and Finsler spacetimes are obtained. We prove that the local light cone structure of a reversible Finsler spacetime with more than two dimensions is topologically the same as that of Lorentzian spacetimes: at each point we have just two strictly convex causal cones which intersect only at the origin. Moreover, we prove a reverse Cauchy-Schwarz inequality for these spaces and a corresponding reverse triangle inequality. The Legendre map is proved to be a diffeomorphism in the general pseudo-Finsler case provided the dimension is larger than two.
description: 24 pages. v2: modified Example 1 v3: updated references, matches published version
Influence of food intake on the 24-hr variations of plasma iron concentration in the rabbit
Creators: name: Schümann, K.
name: Haen, Ekkehard
Publisher: name: Universität Regensburg
Year: 1988
Subjects: subject: 610 Medizin
subject: Animals
subject: Circadian Rhythm
subject: Food
subject: Food Deprivation/physiology
subject: Iron/blood
subject: Male
subject: Rabbits

description: Circadian variations in plasma iron levels were first reported in humans in 1937. Influences of the sleeping pattern and of plasma cortisol and adrenaline levels on these variations as well as the reproducibility of the phenomenon itself are discussed controversially in the literature. The influence of food intake, however, was not considered in most of the studies and is therefore subject of this investigation. Circadian plasma iron and plasma transferrin variations were determined in rabbits and compared under free access to food and under starvation (caecotrophy was not prevented). Population-mean-cosinor analysis of circadian plasma iron concentrations showed similar variations in the fed and starved condition (mesor: 116.6 micrograms/dl vs 118.1 micrograms/dl, acrophase 0752 hr vs 0728) except for a significant increase of the circadian amplitude under free access to food (30.9 micrograms/dl vs 22.3 micrograms/dl, P less than 0.05). There was no variation in plasma transferrin, which shows that 24 hr variations in plasma iron are not caused by modulation of plasma transferrin. These findings demonstrate a circadian rhythm for plasma iron, the amplitude of which is increased by food intake.
Bedeutung der Chronopharmakologie für die Onkologie (= The significance of chronopharmacology for oncology)
Creators: name: Hallek, M.
name: Lévi, F.
name: Haen, Ekkehard
name: Emmerich, B.
Publisher: name: Universität Regensburg
Year: 1989
Subjects: subject: 610 Medizin
subject: Animals
subject: Antineoplastic Agents/pharmacokinetics
subject: Circadian Rhythm
subject: Drug Administration Schedule
subject: Humans
subject: Neoplasms/drug therapy

description: Many physiological variables in hemato-oncology, e.g. the function of liver and kidney and hematopoiesis, show circadian changes. Consequently, the metabolism, elimination and myelotoxicity of cytostatic drugs are subjected to circadian variations in animal and man. Moreover, preliminary clinical data suggest that an optimal circadian timing may even increase the efficacy of anticancer chemotherapy. The recent development of programmable infusion pumps provided a reliable tool for the application of cytostatic drugs at any time of day. As a consequence, controlled clinical trials on the temporal optimization of anticancer chemotherapy seem now to be necessary and feasible.
Effect of thiols on beta 2-adrenoceptors in human mononuclear leucocytes
Creators: name: Liebl, B.
name: Anhäupl, T.
name: Haen, Ekkehard
name: Remien, J.
Publisher: name: Universität Regensburg
Year: 1988
Subjects: subject: 610 Medizin
subject: Cell Membrane/physiology
subject: Cyclic AMP/analysis
subject: Dose-Response Relationship, Drug
subject: Humans
subject: Iodocyanopindolol
subject: Lymphocytes/ultrastructure
subject: Pindolol/pharmacokinetics
subject: Receptors, Adrenergic, beta/drug effects
subject: Sulfhydryl Compounds/pharmacology

description: The effect of the disulfide reducing agent dithiothreitol (DTT) and other thiols on binding of the beta-adrenoceptor antagonist (-)-125iodocyanopindolol (125ICYP) to human mononuclear leucocytes (MNL) was investigated. Saturation experiments and dissociation kinetics revealed two classes of specific 125ICYP binding sites, one of high and the other of low affinity, respectively. In intact MNL DTT caused a decrease in specific binding. This was due almost selectively to a decrease in the affinity of high affinity binding sites, which decreased gradually in a concentration-dependent manner to the affinity of low affinity binding sites. In MNL membranes DTT decreased not only the affinity but also the number of high affinity binding sites. The DTT effect was completely reversible by simple reoxidation on air. The structural isomers (+/-)-DTT. (-)-DTT and dithioerythritol revealed identical effects on specific binding, whereas the monothiols mercaptoethanol and alpha-monothioglycerol, having a lower redox potential, were considerably less effective. In the same concentration range that influenced specific binding. DTT stimulated intracellular cAMP production. These results suggest functionally important disulfide bridges which regulate the affinity of beta-adrenoceptor binding sites in human MNL. They stabilize the receptor in a high affinity state; their reduction causes the conversion of the high affinity state into a low affinity state in a process associated with stimulation of adenylate cyclase. Available evidence indicates that a similar transformation is made by beta-adrenoceptor agonists. Consequently low affinity 125ICYP binding sites preexistent in untreated cells could represent a reduced receptor state resulting from agonist-receptor interaction in vivo.
The use of robots and computers in the organisation of studies on the circadian variation of beta 2-adrenoceptor sites in peripheral mononuclear leucocytes
Creators: name: Liebl, B.
name: Haen, Ekkehard
name: Romacker, U.
name: Nguyen, P. T.
name: Remien, J.
Publisher: name: Universität Regensburg
Year: 1990
Subjects: subject: 610 Medizin
subject: Circadian Rhythm/physiology
subject: Computers
subject: Humans
subject: Leukocytes, Mononuclear/metabolism
subject: Radioligand Assay/instrumentation
subject: Receptors, Adrenergic, beta/blood
subject: Robotics

description: We have developed a partially automated method for the performance of equilibrium radioligand binding studies which is applied by our group in investigations on circadian variations and stimulation studies on beta 2-adrenoceptor sites in human peripheral mononuclear leucocytes (pMNL). Using a Tecan Robotic Sample Processor, binding assays with 12 concentrations of 125iodocyanopindolol (1-150 pmol/l, total binding in triplicates, unspecific binding in the presence of 10(-5) mol/l timolol in duplicates) are prepared automatically with all titer tubes per experiment arranged in a microtiterplate-sized rack. After incubation in a waterbath for 2hr at 37 degrees C, the whole rack is centrifuged at 5000g and transferred back to the lab robot. Bound radioactivity is separated from the unbound ligand by removing the supernatant by the machine. The radioactive counts are evaluated using personal computers. The lab robot enhances reproducibility of experimental results and frees lab workers from time-consuming pipetting jobs. Radioactive exposure is minimized to the time preparing the radioligand working solution and transferring the sample tubes from the robot to the waterbath, to the centrifuge and back to the robot. The variability of our software allows easy adaptation to other binding studies with intact cells.
Epidermal growth factor binding sites on human erythrocytes in donors with different ABO blood groups
Creators: name: Engelmann, B.
name: Schumacher, U.
name: Haen, Ekkehard
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: 610 Medizin
subject: ABO Blood-Group System/immunology
subject: Binding Sites
subject: Blood Donors
subject: Epidermal Growth Factor/metabolism
subject: Erythrocytes/ultrastructure
subject: Genetic Variation/immunology
subject: Histocompatibility/immunology
subject: Humans
subject: Isoantigens/physiology
subject: Protein Binding/immunology
subject: Receptor, Epidermal Growth Factor/ultrastructure
subject: Regression Analysis

description: Analysis of epidermal growth factor (125J-EGF) binding to human red cells revealed the presence of two classes of binding sites with apparent equilibrium dissociation constants (app.Kd) in the 10(-10)-10(-9) M and in the 10(-8) M range, respectively. The number of binding sites/cell ranged between 600 and 2,400 for the high-affinity binding site and between 7,200 and 23,000 for the low-affinity site. No differences were seen in the apparent Kd values for both types of binding sites between red cells obtained from donors with different ABO-blood groups. An increase in the number of high affinity EGF binding sites was observed in donors with blood group A1-erythrocytes as compared to red cells taken from donors with blood groups O and B.
Dual nature of localization in guiding systems with randomly corrugated boundaries: Anderson-type versus entropic
Creators: name: Tarasov, Yu. V.
name: Shostenko, L. D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: A unified theory for the conductance of a long multimode quantum wire whose finite segment has randomly rough boundaries is developed. It enables one to take account of all mechanisms of wave scattering, both related to boundary roughness and to contacts between the wire rough section and the leads within the same technical frameworks. The rough part of the conducting wire is shown to act as a mode-specific randomly modulated effective potential barrier whose height is governed essentially by the asperity slope. The mean height of the barrier specifies the number of conducting channels. Under relatively small asperity amplitude this number can take on arbitrary small values if the asperities are sufficiently sharp. The channel cut-off that arises when the asperity sharpness increases can be regarded as a kind of localization, which is not related to the disorder but rather is of entropic origin. The fluctuating part of the barrier results in two fundamentally different types of guided wave scattering, viz., inter- and intramode scattering. The intermode scattering is shown to be for the most part very strong except in the cases of (a) extremely smooth asperities, (b) excessively small length of the corrugated segment, and (c) the asperities sharp enough for only one conducting channel to remain in the wire. Under strong intermode scattering, a new set of conducting channels develops, which have the form of decoupled extended modes subject to individual random potentials. In view of this fact, two transport regimes only are realizable in randomly corrugated multimode wires, specifically, the ballistic and the localized regime, the latter characteristic of one-dimensional random systems. Two kinds of localization are thus shown to coexist in waveguide-like systems with randomly corrugated boundaries, specifically, the entropic localization and the one-dimensional Anderson localization.
description: 43 pages, 6 figures, final version as published in Annals of Physics
Lunar polar craters -- icy, rough or just sloping?
Creators: name: Eke, Vincent R.
name: Bartram, Sarah A.
name: Lane, David A.
name: Smith, David
name: Teodoro, Luis F. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Circular Polarisation Ratio (CPR) mosaics from Mini-SAR on Chandrayaan-1 and Mini-RF on LRO are used to study craters near to the lunar north pole. The look direction of the detectors strongly affects the appearance of the crater CPR maps. Rectifying the mosaics to account for parallax also significantly changes the CPR maps of the crater interiors. It is shown that the CPRs of crater interiors in unrectified maps are biased to larger values than crater exteriors, because of a combination of the effects of parallax and incidence angle. Using the LOLA Digital Elevation Map (DEM), the variation of CPR with angle of incidence has been studied. For fresh craters, CPR~0.7 with only a weak dependence on angle of incidence or position interior or just exterior to the crater, consistent with dihedral scattering from blocky surface roughness. For anomalous craters, the CPR interior to the crater increases with both incidence angle and distance from the crater centre. Central crater CPRs are similar to those in the crater exteriors. CPR does not appear to correlate with temperature within craters. Furthermore, the anomalous polar craters have diameter-to-depth ratios that are lower than those of typical polar craters. These results strongly suggest that the high CPR values in anomalous polar craters are not providing evidence of significant volumes of water ice. Rather, anomalous craters are of intermediate age, and maintain sufficiently steep walls that deep regolith does not cover all rough surfaces.
description: 16 pages, 17 figures, submitted to Icarus (2014, 241, 66)
Renewable Powered Cellular Networks: Energy Field Modeling and Network Coverage
Creators: name: Huang, Kaibin
name: Kountouris, Marios
name: Li, Victor O. K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Powering radio access networks using renewables, such as wind and solar power, promises dramatic reduction in the network operation cost and the network carbon footprints. However, the spatial variation of the energy field can lead to fluctuations in power supplied to the network and thereby affects its coverage. This warrants research on quantifying the aforementioned negative effect and countermeasure techniques, motivating the current work. First, a novel energy field model is presented, in which fixed maximum energy intensity $γ$ occurs at Poisson distributed locations, called energy centers. The intensities fall off from the centers following an exponential decay function of squared distance and the energy intensity at an arbitrary location is given by the decayed intensity from the nearest energy center. The product between the energy center density and the exponential rate of the decay function, denoted as $ψ$, is shown to determine the energy field distribution. Next, the paper considers a cellular downlink network powered by harvesting energy from the energy field and analyzes its network coverage. For the case of harvesters deployed at the same sites as base stations (BSs), as $γ$ increases, the mobile outage probability is shown to scale as $(c γ^{-πψ}+p)$, where $p$ is the outage probability corresponding to a flat energy field and $c$ a constant. Subsequently, a simple scheme is proposed for counteracting the energy randomness by spatial averaging. Specifically, distributed harvesters are deployed in clusters and the generated energy from the same cluster is aggregated and then redistributed to BSs. As the cluster size increases, the power supplied to each BS is shown to converge to a constant proportional to the number of harvesters per BS.
description: double-column, 13 pages; to appear in IEEE Transactions on Wireless Communications
Οικονομοτεχνική ανάλυση & αξιολόγηση ίδρυσης τουριστικού καταλύματος στην Κεφαλονιά
Creators: name: Γιαλούρη, Βασιλική
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2024
Subjects: subject: Οικονομοτεχνική μελέτη
subject: Τουριστικό κατάλυμα
subject: Κεφαλονιά

description: Η παρούσα διπλωματική εργασία πραγματοποιήθηκε στο πλαίσιο του Μεταπτυχιακού προγράμματος Διοίκησης Επιχειρήσεων – Ολική Ποιότητα με διεθνή προσανατολισμό (MBA TQM) του Πανεπιστημίου Πειραιώς. Αντικείμενο της εργασίας αποτελεί η οικονομοτεχνική ανάλυση και αξιολόγηση ίδρυσης τουριστικού καταλύματος στην Κεφαλονιά. Στην παρούσα εργασία, μελετάται η συμβολή του τουρισμού στο ΑΕΠ σε παγκόσμιο, ευρωπαϊκό και εθνικό επίπεδο. Προσδιορίζεται η ταυτότητα του τουριστικού καταλύματος, διαμορφώνεται το πλάνο και το μείγμα Μάρκετινγκ, η στρατηγική και οι στόχοι του. Στη συνέχεια, η μελέτη επικεντρώνεται στην οργάνωση και λειτουργία της μονάδας, περιλαμβάνοντας αναφορές στις πρώτες ύλες, τον εξοπλισμό, την τεχνολογία, το προσωπικό, την οργάνωση και την τοποθεσία. Παρουσιάζεται, επίσης, ένα χρονοδιάγραμμα υλοποίησης και ο γενικός προϋπολογισμός του έργου. Τέλος, πραγματοποιείται η χρηματοοικονομική ανάλυση του καταλύματος και αξιολογείται η σκοπιμότητα της επένδυσης.
title: Exklusion statt Inklusion im österreichischen Bildungssystem?
Creators: name: Rautner, Katrin
Year: 2022

description: Deutschförderklassen sind darauf ausgerichtet, nicht-deutsch-sprechenden Kindern und Jugendlichen Raum und Zeit für den Erwerb der Sprache zu ermöglichen, bevor sie gleichbehandelt und -bewertet werden wie ihre deutschsprechenden Mitschüler*innen. Damit wird zwar dem Recht auf Bildung für alle, im Sinne eines möglichen Zugangs zu Bildung, nachgegangen, allerdings ergeben sich durch diese Art der Förderung, welche mit einem hohen Maß an Besonderung und Separierung einhergeht, Risiken zur Exklusion. In dieser Masterarbeit werden die in Österreich eingeführten Deutschförderklassen einer kritischen Reflexion unterzogen und dabei hinsichtlich ihrer Wirkung auf die Wahrnehmung von Kindern und Jugendlichen in Bezug auf Bildungsgerechtigkeit, Chancengleichheit und soziale Zugehörigkeit problematisiert und überprüft. Es wird ein Blick auf mögliche Folgen geworfen, die sich mit der Einführung und Umsetzung dieser Klassen aus inklusions- und migrationspädagogischer sowie ethischer Sicht ergeben können. Mithilfe von Fachliteratur, bisherigen Forschungsergebnissen und eigens durchgeführten qualitativen Interviews soll auf die Implikationen geblickt werden, die der Eintritt in eine Deutschförderklasse und der Wechsel von dieser in den regulären Unterricht auf das Wohlbefinden des Einzelnen haben mag. Die vorliegende Arbeit soll die Problematik, die sich durch das Konzept der Deutschförderklassen ergeben kann, aufzeigen, den Blickwinkel der Schüler*innen einfangen und jenen Jugendlichen eine Stimme geben, denen sie sonst so oft genommen wird.
description: German remedial classes are designed to give non-German-speaking children and young people time and space to acquire the language before they are treated and evaluated in the same way as their German-speaking classmates. In this way, the right to education for all, in terms of access to education, is pursued. However, this type of support, which is associated with a high degree of specialization and separation, results in risks of exclusion. In this master's thesis, the German remedial classes recently introduced in Austria are subjected to a critical reflection. Furthermore, their effect on the perception of children and young people in relation to educational equity, equal opportunities and social belonging is examined. A look is taken at possible consequences that can arise from the introduction and implementation of these classes from an inclusion and migration pedagogical as well as ethical point of view. With the help of specialist literature, previous research results and specially conducted qualitative interviews, the aim of this thesis is to look at the implications that entering a German remedial class and the change from this to regular classes may have on the well-being of the individual. The present work is intended to show the problems that can arise from the concept of German remedial classes, to capture the point of view of the students and to give those young people a voice that is otherwise so often taken away.
z~2-9 Galaxies Magnified by the Hubble Frontier Field Clusters II: Luminosity Functions and Constraints on a Faint-End Turnover
Creators: name: Bouwens, R. J.
name: Illingworth, G. D.
name: Ellis, R. S.
name: Oesch, P. A.
name: Stefanon, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present new determinations of the rest-UV luminosity functions (LFs) at z=2-9 to extremely low luminosities (>-14 mag) from a sample of >2500 lensed galaxies found behind the HFF clusters. For the first time, we present faint-end slope results from lensed samples that are fully consistent with blank-field results over the redshift range z=2-9, while reaching to much lower luminosities than possible from the blank-field studies. Combining the deep lensed sample with the large blank-field samples allows us to set the tight constraints on the faint-end slope alpha of the z=2-9 UV LFs and its evolution. We find a smooth flattening in alpha from -2.28+/-0.10 (z=9) to -1.53+/-0.03 (z=2) with cosmic time (d(alpha)/dz=-0.11+/-0.01), fully consistent with dark matter halo buildup. We utilize these new results to present new measurements of the evolution in the UV luminosity density rho(UV) brightward of -13 mag from z~9 to z~2. Accounting for the SFR densities to faint luminosities implied by our LF results, we find that unobscured star formation dominates the SFR density at z>~4, with obscured star formation dominant thereafter. Having shown we can quantify the faint-end slope alpha of the LF accurately with our lensed HFF samples, we also quantify the apparent curvature in the shape of the UV LF through a curvature parameter delta. The constraints on the curvature delta strongly rule out the presence of a turn-over brightward of -13.1 mag at z~3, -14.3 mag at z~6, and -15.5 mag at all other redshifts between z~9 to z~2.
description: 32 pages, 16 figures, 7 tables, ApJ, in press
Quantitation of mRNA for the beta-adrenoceptor gene in human mononuclear leucocytes by in situ hybridization with fluorochrome labeled cloned DNA
Creators: name: Liebl, B.
name: Pachmann, K.
name: Römer, U.
name: Haen, Ekkehard
name: Hallek, M.
name: Emmerich, B.
Publisher: name: Universität Regensburg
Year: 1991
Subjects: subject: 610 Medizin
subject: Adolescent
subject: Adult
subject: Cloning, Molecular
subject: DNA Probes
subject: Female
subject: Fluorescein-5-isothiocyanate
subject: Fluoresceins
subject: Humans
subject: Leukocytes, Mononuclear/chemistry
subject: Male
subject: Middle Aged
subject: Nucleic Acid Hybridization
subject: RNA, Messenger/genetics
subject: Receptors, Adrenergic, beta/genetics
subject: Thiocyanates
subject: Transcription, Genetic/genetics

description: Determination of the transcriptional activity of the beta-adrenoceptor (beta-AR) gene in human mononuclear leucocytes (MNL) may provide important information concerning variations in receptor expression in clinical studies. We used a new method with highly fluorochrome-labeled gene probes for in situ hybridization which allows a rapid detection of mRNA at the cellular level. MNL from venous blood of healthy volunteers were permeabilized, fixed and attached to adhesive glass slides. After incubation with fluorochrome-labeled cloned hamster beta AR-DNA probes the amount of DNA-mRNA hybrids formed in the cytoplasm of individual cells was analyzed by microfluorimetry of specifically bound fluorochrome. In nine of ten normal subjects studied so far a fraction of beta AR-mRNA positive MNL could be detected. The proportion of positive cells as well as their signal intensity revealed a high interindividual variance.
Constructing a Weyl semimetal by stacking one dimensional topological phases
Creators: name: Ganeshan, Sriram
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Topological semimetals in three-dimensions (e.g. Weyl semimetal) can be built by stacking two dimensional topological phases. The interesting aspect of such a construction is that even though the topological building blocks in the low dimension may be gapped, the higher dimensional semimetallic phase emerges as a gapless critical point of a topological phase transition between two distinct insulating phases. In this work, we extend this idea by constructing three-dimensional topological semimetallic phases akin to Weyl systems by stacking one-dimensional Aubry-Andre-Harper (AAH) lattice tight binding models with non-trivial topology. The generalized AAH model is a family of one dimensional tight binding models with cosine modulations in both hopping and onsite energy terms. In this paper, we present a two-parameter generalization of the AAH model that can access topological phases in three dimensions within a unified framework. We show that the $π$-flux state of this two-parameter AAH model manifests three dimensional topological semimetallic phases where the topological features are embedded in one dimension. The topological nature of the band touching points of the semimetallic phase in 3D is explicitly established both analytically and numerically from the 1D perspective. This dimensional reduction provides a simple protocol to experimentally construct the three dimensional Brillouin zone of the topological semimetallic phases using `legos' of simple 1D double well optical lattices. We also propose Zak phase imaging of optical lattices as a tool to capture the topological nature of the band touching points. Our work provides a theoretical connection between the commensurate AAH model in 1D and Weyl semimetals in 3D, and points toward practical methods for the laboratory realization of such three dimensional topological systems in atomic optical lattices.
description: 12 pages, 7 figures, Published version with revised title, introduction and improved presentation
title: Development of a prototype of a mobile quiz game using cutting-edge tools and practices
title: Εφαρμογή σύγχρονων εργαλείων και πρακτικών για τη δημιουργία ενός πρωτότυπου παιχνιδιού ερωταπαντήσεων
titleType: AlternativeTitle
Creators: name: Dokouzis, Iason-Dimitrios
name: Ντοκούζης, Ιάσων-Δημήτριος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2024
Subjects: subject: Jetpack Compose
subject: OOP
subject: Object-Oriented Programming
subject: Mobile application
subject: Class structure
subject: Quiz game
subject: User interface
subject: TCP
subject: UDP
subject: Transmission Control Protocol
subject: User Datagram Protocol
subject: Server synchronization
subject: Peer-to-peer
subject: Dedicated server
subject: Listen server
subject: Host migration
subject: Modifier

description: Ο σκοπός αυτής της δημοσίευσης ήταν η δημιουργία ενός παιχνιδιού ερωταπαντήσεων, το οποίο θα επέτρεπε παίχτες σε ολόκληρο τον κόσμο να συνδεθούν, να περάσουν μέσα από quiz και να απαντάνε μαζί σε ερωτήσεις. Η απάντηση του κάθε παίχτη σε κάθε κουίζ έπρεπε να καταγραφόταν και να αποθηκευόταν σε έναν χώρο αποθήκευσης και οι παίχτες έπρεπε να έχουν την ικανότητα να δουν στατιστικά δεδομένα για τον εαυτό τους, ή και να δούνε παγκόσμια στατιστικά δεδομένα. Η σημασία του Αντικειμενοστραφούς Προγραμματισμού κατά τη δημιουργία, συντήρηση ή επέκταση εφαρμογών θα εξηγηθεί πρώτα. Θα περιγραφούν προσεγγίσεις που μπορούν να ληφθούν υπόψη, καθώς και προοπτικές που πρέπει να εξεταστούν. Τέλος, θα εξηγηθούν πρακτικές που έχουν δημιουργηθεί από τον συγγραφέα με σκοπό τη συγγραφή καλά οργανωμένου κώδικα. Τα παραπάνω θέματα θα παρουσιαστούν στον αναγνώστη μέσω παραδειγματικών εφαρμογών, που έχουν δημιουργηθεί από τον συγγραφέα για τις ανάγκες αυτής της εργασίας. Οι παραδειγματικές εφαρμογές είναι εφαρμογές κονσόλας χωρίς στοιχεία διεπαφής χρήστη, με σκοπό την εμφάνιση και την εστίαση στη λογική της εφαρμογής και όχι στη διεπαφή χρήστη (UI) της. Οι βασικές αρχές του σχεδιασμού γραφικών εφαρμογών με το Jetpack Compose θα εξηγηθούν στο επόμενο κεφάλαιο. Το Jetpack Compose επιτρέπει στους προγραμματιστές ή σχεδιαστές να αναπτύσσουν γραφικές διεπαφές για κινητές εφαρμογές με υψηλό βαθμό ελευθερίας, ταχύτητας και με ελάχιστο αριθμό σφαλμάτων. Το Jetpack Compose είναι ένα εργαλείο που προσφέρει έναν εντελώς νέο τρόπο για την ανάπτυξη σύγχρονων γραφικών διεπαφών χρήστη και επιτρέπει τη χρήση των τελευταίων τεχνολογιών. Οι βασικές αρχές της δημιουργίας διατάξεων, των τροποποιητών (Modifiers) και η σημασία της σειράς με την οποία εφαρμόζονται θα εξηγηθούν με παραδείγματα και εικόνες που ελπίζουμε να προσφέρουν στον αναγνώστη βαθιά κατανόηση αυτού του εργαλείου. Το τελευταίο κεφάλαιο θα εξηγήσει τη δομή της εφαρμογής, τις κλάσεις της και το πώς συνδέονται, καθώς και τα δύο διαφορετικά εκτελέσιμα αρχεία που χρησιμοποιούνται για την παροχή της λειτουργικότητας εκτέλεσης. Θα εξηγηθούν προβλήματα σχεδίασης που βρέθηκαν και οι λύσεις που δόθηκαν για αυτά τα προβλήματα. Μέχρι το τέλος του κεφαλαίου, ο αναγνώστης θα έχει μια ολοκληρωμένη κατανόηση της γενικής δομής της εφαρμογής.
Quench-induced breathing mode of one-dimensional Bose gases
Creators: name: Fang, Bess
name: Carleo, Giuseppe
name: Johnson, Aisling
name: Bouchoule, Isabelle
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We measure the position- and momentum- space breathing dynamics of trapped one-dimensional Bose gases. The profile in real space reveals sinusoidal width oscillations whose frequency varies continuously through the quasicondensate to ideal Bose gas crossover. A comparison with theoretical models taking into account the effect of finite temperature is provided. In momentum space, we report the first observation of a frequency doubling in the quasicondensate regime, corresponding to a self-reflection mechanism. The disappearance of this mechanism through the quasicondensation crossover is mapped out.
title: Ανάπτυξη συστήματος συνομιλίας μεταξύ chatbots
title: Development of a chatting system between chatbots
titleType: AlternativeTitle
Creators: name: Μαντούβαλου, Δανάη
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2024
Subjects: subject: Συστήματα συνομιλίας
subject: Φυσική γλώσσα
subject: NLP
subject: Transformer
subject: BERT

description: Η παρούσα διπλωματική εργασία αυτή ασχολείται με τη δημιουργία ενός συστήματος συνομιλίας μεταξύ δύο chatbots με χρήση φυσικής γλώσσας, και πιο συγκεκριμένα του μοντέλου GPT-3.5 της OpenAI και της Python, στο οποίο θα αναλύονται διάφορα θέματα ανάλογα με την ερώτηση που θα κάνει ο χρήστης αναλύοντας αρχικά τον γενικό ρόλο της εφαρμογής τεχνητής νοημοσύνης ChatGPT στον τομέα της επεξεργασίας φυσικής γλώσσας και περιγράφοντας εφαρμογές του σε διάφορους τομείς όπως τα συστήματα συνομιλίας και η δημιουργία κειμένου. Στη συνέχεια, εξετάζονται η έννοια του chatbot, οι τρόποι με τους οποίους οι αρχιτεκτονικές Transformer και τα μοντέλα BERT, τα οποία αποτελούν βασικά εργαλεία στην ανάπτυξη συστημάτων NLP, συνεισφέρουν στην δημιουργία του. Τέλος, παρέχει μια λεπτομερή περιγραφή του συστήματος που αναπτύχθηκε, συμπεριλαμβανομένης της διασύνδεσης με την API και της διαμόρφωσής του, ενώ παρουσιάζονται επίσης τα συμπεράσματα της έρευνας και πιθανές μελλοντικές επεκτάσεις.
Real Time Image Differencing with the LSST Alert Production Pipeline
Creators: name: Rawls, Meredith
name: Bellm, Eric
name: Findeisen, Krzysztof
name: Krughoff, Simon
name: Morrison, Christopher
name: Swinbank, John
Publisher: name: Zenodo
Year: 2019
Subjects: lsst

description: The Alert Production (AP) Pipeline for the Large Synoptic Survey Telescope (LSST) must promptly process new images from the telescope to enable rapid-response time domain science. It begins with raw telescope data and uses image differencing to identify time-variable sources and associate them with previously detected objects. We present an overview of the AP Pipeline and illustrate its utility with Dark Energy Camera (DECam) data from the High Cadence Transient Survey (HiTS). We use DECam images from 2014 as a template for images which revisit the same region of the sky in 2015. We compile catalogs of detected sources and associated objects, create light curves for a handful of interesting objects, and compare initial results with the first HiTS data release. The AP Pipeline is part of the LSST Science Pipelines and is available on GitHub at https://github.com/lsst/ap_pipe.
title: Ukrainische Flüchtlingskrise in Österreich mit Gegenüberstellung zur Flüchtlingskrise 2015 - Bevorzugung am österreichischen Arbeitsmarkt?
Creators: name: Özakaydin, Angelina Aysenur
Year: 2023

description: Die vorliegende Masterarbeit beschäftigt sich mit dem Thema der Arbeitsmarktintegration in Österreich. Dabei werden zwei verschiedene Geflüchtetengruppen (die Vertriebenen des Ukrainekriegs 2022 und die Flüchtlinge 2015 aus Syrien, Iran und Afghanistan) gegenübergestellt. Es wird angenommen, dass Ukrainer:innen aufgrund ihrer ähnliche Kultur und Religion in Österreich positiver am Arbeitsmarkt aufgenommen werden. Als Basis wurden diverse Studien und Fachliteratur herangezogen sowie Interviews geführt, um die Aussage zu entkräften oder zu bestätigen. Anhand der Literatur konnte festgestellt werden, dass Religion zur Ausgrenzung führen kann. Dies konnte anhand von Umfragen mit österreichischen Staatsbürger:innen (unter anderem vom ÖIF sowie AMS) bestätigt werden. Weiters kann aufgrund von Umfragen aus den vergangen Jahren – teilweise vor der Flüchtlingskrise 2015 – eine ablehnende Haltung gegenüber Staatsbürger:innen aus muslimischen Ländern beobachtet werden. Auch das subjektive Empfinden der Flüchtlinge aus Syrien, Afghanistan und Iran kann diese Aussage bekräftigen. Im Vergleich dazu lieferten die Interviewpartner:innen untereinander sehr widersprüchliche Argumente. So haben die Sprecher:innen der Anerkennungsberatungsstelle sowie der Diakonie, eine in Österreich herrschende Diskriminierung gegenüber Personen aus dem Nahen Osten wahrgenommen, während Ukrainer:innen deutlich positiver in Österreich empfangen werden. Diese Wahrnehmung konnte jedoch nicht von den Sprecher:innen des AMS, des ÖIF und der Rechtsberatungsstelle „Tralalobe“ geteilt werden. Diese sind entweder der Meinung, dass keine Benachteiligung am österreichischen Arbeitsmarkt herrscht oder eine Integration nicht viel mit Religion oder Kultur zu tun hat, sondern andere Faktoren wie das gegenseitige Anerkennen von Werten, Bildung und Alter mehr Einfluss auf die erfolgreiche Integration im Arbeitsmarkt haben.
Nonequilibrium dynamical mean-field theory for bosonic lattice models
Creators: name: Strand, Hugo U. R.
name: Eckstein, Martin
name: Werner, Philipp
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We develop the nonequilibrium extension of bosonic dynamical mean field theory (BDMFT) and a Nambu real-time strong-coupling perturbative impurity solver. In contrast to Gutzwiller mean-field theory and strong coupling perturbative approaches, nonequilibrium BDMFT captures not only dynamical transitions, but also damping and thermalization effects at finite temperature. We apply the formalism to quenches in the Bose-Hubbard model, starting both from the normal and Bose-condensed phases. Depending on the parameter regime, one observes qualitatively different dynamical properties, such as rapid thermalization, trapping in metastable superfluid or normal states, as well as long-lived or strongly damped amplitude oscillations. We summarize our results in non-equilibrium "phase diagrams" which map out the different dynamical regimes.
description: 18 pages, 8 figures
Snakes and ladders in an inhomogeneous neural field model
Creators: name: Avitabile, Daniele
name: Schmidt, Helmut
Publisher: name: arXiv
Year: 2014
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Continuous neural field models with inhomogeneous synaptic connectivities are known to support traveling fronts as well as stable bumps of localized activity. We analyze stationary localized structures in a neural field model with periodic modulation of the synaptic connectivity kernel and find that they are arranged in a snakes-and-ladders bifurcation structure. In the case of Heaviside firing rates, we construct analytically symmetric and asymmetric states and hence derive closed-form expressions for the corresponding bifurcation diagrams. We show that the ideas proposed by Beck and co-workers to analyze snaking solutions to the Swift-Hohenberg equation remain valid for the neural field model, even though the corresponding spatial-dynamical formulation is non-autonomous. We investigate how the modulation amplitude affects the bifurcation structure and compare numerical calculations for steep sigmoidal firing rates with analytic predictions valid in the Heaviside limit.
Photodegradation of some quinolones used as antimicrobial therapeutics
Creators: name: Tiefenbacher, E. M.
name: Haen, Ekkehard
name: Przybilla, B.
name: Kurz, H.
Publisher: name: Universität Regensburg
Year: 1994
Subjects: subject: 610 Medizin
subject: Anti-Infective Agents/radiation effects
subject: Chromatography, High Pressure Liquid
subject: Ciprofloxacin/radiation effects
subject: Fleroxacin/radiation effects
subject: Light
subject: Mass Spectrometry
subject: Ofloxacin/radiation effects
subject: Photochemistry
subject: Spectrophotometry, Ultraviolet
subject: Ultraviolet Rays

description: The photostability of the fluoroquinolones ciprofloxacin (CPX), ofloxacin (OFX), and fleroxacin (FLX) toward ultraviolet irradiation (UVA) and room light was investigated in dilute aqueous solutions. A series of photoproducts was observed by high-performance liquid chromatography (HPLC) for all three drugs. As little as 1 h of exposure to room light was enough for the formation of detectable amounts of CPX photoproducts. The major CPX photoproduct was characterized as a dimer by liquid secondary ion mass spectrometry, but its structure was not determined. Since irradiation of CPX results (as cited in ref/11) in a loss of antibacterial activity and since all substances, parent drugs as well as their photoproducts, are potential candidates for undesired drug effects, quinolone drugs should be strictly protected from all light during storage and administration.
title: The Irish Landed Class and the Regular Officer Corps of the British Army, c. 1775-1900
Creators: name: Perry, Nicholas Proctor
Publisher: name: University of Kent
Year: 2024

description: This thesis examines the involvement of the Irish landed class with the regular officer corps of the British Army from the 1770s until the start of the twentieth century. A key source of officers, their commitment to military service became central to their collective sense of identity, something they had in common with other regional elites within the British Isles and on the continent. This period saw their evolution, from a national-regional elite within the Hanoverian composite state seeking access to state service; to one that, as a result of global war, insurrection and constitutional change, had by 1815 become integrated into a broader British imperial ruling class; to be followed, as their domestic political and economic position declined, by an increased focus on military service that by 1900 had given them some characteristics of a military-imperial service class. Yet their often-difficult political relationship with the mass of their mainly Catholic countrymen was accompanied by a complex relationship with the British state. Predominantly Protestant and overwhelmingly Unionist, their privileged status depended ultimately on British power, but though the British government sustained their position for decades and availed of their services, it was in the end prepared to sacrifice their interests in the face of wider political considerations. By charting the military involvement of 200 Irish landed families, this study sets out to answer three linked questions: the extent of their military engagement, how their routes to commissions and subsequent career patterns changed over time, and how their experience compares with that of their counterparts in Great Britain and Prussia.
To What Extent Should Academic Freedom Allow Academics to Criticise Their Universities?
Creators: name: Levine, Pnina
name: Rigby, Haydn
Publisher: name: Monash University
Year: 2023
Subjects: Other law and legal studies not elsewhere classified

description: The recent case of Schröder-Turk v Murdoch University has thrown up questions in relation to the extent to which an academic is allowed to criticise the university at which they are employed. What freedom, if any, does an academic have to criticise the practices of their Australian university? Are there any limits to this freedom? Are these limits appropriate? These questions in turn raise questions as to the existence and nature of any right that an academic has to exercise academic freedom in Australia and the extent to which this right may provide an academic with more protection to criticise their university employer than they may have otherwise had and whether this may have unintended, detrimental consequences. Does this right to academic freedom allow academics to criticise their institution whether or not they have a reasonable basis for doing so and if so, should this be the case? This article explores these questions with particular reference to the effect of the Model Code for the Protection of Free Speech and Academic Freedom recommended by former High Court of Australia Chief Justice Robert French and proposes some amendments to this Code.
Finding elliptic curves with a subgroup of prescribed size
Creators: name: Shparlinski, Igor E.
name: Sutherland, Andrew V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11G07 (Primary), 11T06, 11Y16 (Secondary)

description: Assuming the Generalized Riemann Hypothesis, we design a deterministic algorithm that, given a prime p and positive integer m=o(sqrt(p)/(log p)^4), outputs an elliptic curve E over the finite field F_p for which the cardinality of E(F_p) is divisible by m. The running time of the algorithm is mp^(1/2+o(1)), and this leads to more efficient constructions of rational functions over F_p whose image is small relative to p. We also give an unconditional version of the algorithm that works for almost all primes p, and give a probabilistic algorithm with subexponential time complexity.
description: 21 pages, minor corrections, added a new section