cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An Eye on Age-Related Macular Degeneration: The Role of MicroRNAs in Disease Pathology
Creators: name: Berber, Patricia
name: Grassmann, Felix
name: Kiel, Christina
name: Weber, Bernhard H. F.
Publisher: name: Universität Regensburg
Year: 2017
Subjects: subject: 610 Medizin

description: Age-related macular degeneration (AMD) is the primary cause of blindness in developed countries, and is the third leading cause worldwide. Emerging evidence suggests that beside environmental and genetic factors, epigenetic mechanisms, such as microRNA (miRNA) regulation of gene expression, are relevant to AMD providing an exciting new avenue for research and therapy. MiRNAs are short, non-coding RNAs thought to be imperative for coping with cellular stress. Numerous studies have analyzed miRNA dysregulation in AMD patients, although with varying outcomes. Four studies which profiled dysregulated circulating miRNAs in AMD yielded unique sets, and there is only minimal overlap in ocular miRNA profiling of AMD. Mouse models of AMD, including oxygen-induced retinopathy and laser-induced choroidal neovascularization, showed similarities to some extent with miRNA patterns in AMD. For example, miR-146a is an extensively researched miRNA thought to modulate inflammation, and was found to be upregulated in AMD mice and cellular systems, but also in human AMD retinae and vitreous humor. Similarly, mir-17, miR-125b and miR-155 were dysregulated in multiple AMD mouse models as well as in human AMD plasma or retinae. These miRNAs are thought to regulate angiogenesis, apoptosis, phagocytosis, and inflammation. A promising avenue of research is the modulation of such miRNAs, as the phenotype of AMD mice could be ameliorated with antagomirs or miRNA-mimic treatment. However, before meaningful strides can be made to develop miRNAs as a diagnostic or therapeutic tool, reproducible miRNA profiles need to be established for the various clinical outcomes of AMD.
Sleepiness and fatigue in multiple sclerosis - same same but different? A systematic review on the Epworth Sleepiness Scale as an assessment tool
Creators: name: Popp, Roland
name: Fierlbeck, Anna K.
name: Knüttel, Helge
name: König, Nicole
name: Rupprecht, Rainer
name: Weissert, Robert
name: Wetter, Thomas C.
Publisher: name: Universität Regensburg
Year: 2016
Subjects: subject: 610 Medizin

description: Objectives: Fatigue is a frequent and distressing symptom in patients with multiple sclerosis (MS). In contrast, sleepiness, characterized by difficulties to stay awake and alert during the day, seems to be less prevalent in MS; however exact studies are lacking. In addition, there is a semantic confusion of the concepts of “fatigue” and “sleepiness”, which are often used interchangeably. Methods: We conducted a systematic review of studies using the Epworth Sleepiness Scale (ESS) for the assessment of daytime sleepiness in patients with MS. Results: The summarized results of 48 studies demonstrate that sleepiness, as indicated by elevated ESS scores, is less prevalent and less severe than fatigue but is present in a significant proportion of patients with MS. In most cross-sectional and longitudinal studies, there was a moderate association between ESS scores and various fatigue rating scales. Longitudinal studies on the effect of wakefulness- promoting agents failed to show a consistent improvement of sleepiness or fatigue as compared to placebo. It has also been shown that daytime sleepiness is frequently associated with comorbid sleep disorders that are often underrecognized and undertreated in MS. Conclusions: Sleepiness and potential sleep disorders may also precipitate and perpetuate fatigue in patients with MS and should be part of the differential diagnostic assessment. To support an appropriate decision-making process, we propose an algorithm for the evaluation of sleepiness as compared to fatigue in patients with MS. Disclosure: Nothing to disclose.
description: Abstract of a poster presented at the 23rd Congress of the European Sleep Research Society, 13–16 September 2016, Bologna, Italy
Magnetic nano-Fe3O4@TiO2/Cu2O core-shell composite: An efficient novel catalyst for the regioselective synthesis of 1,2,3-triazoles using a click reaction
Creators: name: Mommahed Heravi, Majid
name: Nemati, Firouzeh
name: Elhampour, Ali
Publisher: name: figshare
Year: 2022
Subjects: subject: 30302 Nanochemistry and Supramolecular Chemistry
subject: FOS: Chemical sciences
subject: 30701 Quantum Chemistry
subject: 39904 Organometallic Chemistry
subject: Organic Chemistry
subject: 30502 Natural Products Chemistry
subject: 30599 Organic Chemistry not elsewhere classified
subject: 30205 Non-metal Chemistry
subject: Nuclear Chemistry
subject: 30504 Organic Green Chemistry
subject: 30303 Optical Properties of Materials

description: A magnetic nano-Fe3O4@TiO2/Cu2O core-shell composite, optimized for the loading amount of Cu2O, was successfully prepared and fully characterized by analyzing FT-IR, XRD, XPS, FEG-SEM, EDS, and VSM data. The catalytic activity of the nano-Fe3O4@TiO2/Cu2O core-shell composite was examined in a classical one-pot and three-component reaction of terminal alkynes, benzyl halides, and sodium azide in water that was observed to proceed smoothly and completed in good yields with high regioselectivity. The catalyst was conventionally recovered using an external magnet and was reused in at least five successive runs without an appreciable loss of activity.
"Blood wavering in uncertain flux and reflux" : reading the blush in Thomas Hardy's Far from the Madding Crowd and A Pair of Blue Eyes
Creators: name: Ball, Hilary
Publisher: name: University of British Columbia
Year: 2017

description: The two primary aims of this thesis are to position Thomas Hardy in a history of nineteenth-century literary blushing that has not, as of yet, included him, and to consider the extent to which his representations of blushing correspond with contemporaneous discussions of the embodied mind. Hardy’s longstanding interest in the extent to which external signs can communicate internal states and in the limitations of self-knowledge intersect with many of the questions about consciousness, bodies, and social environment central to nineteenth-century literary and scientific explorations of the blush. The 1870s in particular saw an exacerbation of interest in and conversation about the blush, related, in part, to the publication of Darwin’s The Expression of the Emotions in Man and Animals on 26 November 1872 — four months after Hardy started writing A Pair of Blue Eyes, and seven months before he began seriously working on Far from the Madding Crowd. By tracing representations of blushing throughout these two novels, my thesis reveals Hardy’s growing distrust of the blush’s revelatory capacity and his more pronounced emphasis on the biological mechanism as an object of investigation and anxiety. My chapter on A Pair of Blue Eyes considers what or how much a blush can say about interiority, drawing primarily on the literary tradition, while my chapter on Far from the Madding Crowd considers what the blush can say about the body, suggesting that Hardy engages more self-consciously here with the physiology of blushing and the sexual politics of observation and exposure. The representations of blushing in both novels, however, incorporate both literary and scientific traditions as they explore how bodies absorb and reproduce discourses and narratives that repress or exploit them and how they resist such coercions, proving uncooperative or unreadable.
Vibrational structure and symmetry in $^{110-116}$Cd
Creators: name: Leviatan, A.
name: a-Ramos, J. E. Garcí
name: Gavrielov, N.
name: Van Isacker, P.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We show that a vibrational interpretation and good U(5) symmetry are maintained for the majority of low-lying normal states in $^{110,112,114,116}$Cd isotopes, consistent with the empirical data. The observed deviations from this paradigm are properly treated by an interacting boson model Hamiltonian which breaks the U(5) symmetry in selected non-yrast states, while securing a weak mixing with coexisting SO(6)-like intruder states. The results demonstrate the relevance of the U(5) partial dynamical symmetry notion to this series of isotopes.
description: 9 pages, 2 figures, 4 Tables, Proceedings of the Zakopane Conference on Nuclear Physics "Extremes of the Nuclear Landscape", Zakopane, Poland, August 25 - September 1, 2024
Distal and non-distal NIP theories
Creators: name: Simon, Pierre
Publisher: name: arXiv
Year: 2011
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03C45

description: We study one way in which stable phenomena can exist in an NIP theory. We start by defining a notion of 'pure instability' that we call 'distality' in which no such phenomenon occurs. O-minimal theories and the p-adics for example are distal. Next, we try to understand what happens when distality fails. Given a type p over a sufficiently saturated model, we extract, in some sense, the stable part of p and define a notion of stable-independence which is implied by non-forking and has bounded weight. As an application, we show that the expansion of a model by traces of externally definable sets from some adequate indiscernible sequence eliminates quantifiers.
Behavioural effects of an antigonadotropin, of sexual hormones, and of psychopharmaka in the pumpkinseed sunfish, Lepomis gibbosus (Centrarchidae)
Creators: name: Kramer, Bernd
Publisher: name: Universität Regensburg
Year: 1972
Subjects: subject: 590 Tiere (Zoologie)

description: Ein synthetisches Antigonadotropin (Methallibur, I.C.I) hemmt das Sexual- und Nestbauverhalten von Sonnenbarsch-Männchen (Lepomis gibbosus). Testosteron hingegen steigert die Aggressivität, und Säuger-LH zudem noch die Sexualtendenz. Reserpin erhöht die Kampfstimmung; Chlorpromazin hemmt dagegen die Kampf- und Nestbaustimmung, nicht aber die Sexualtendenz.
Study Protocol: A Pilot Study to Determine the Safety and Efficacy of Induction-Therapy, De Novo MPA and Delayed mTOR-Inhibition in Liver Transplant Recipients with Impaired Renal Function. PATRON-Study
Creators: name: Schnitzbauer, Andreas A.
name: Scherer, Marcus N.
name: Rochon, Justine
name: Sothmann, Johannes
name: Farkas, Stefan A.
name: Loss, Martin
name: Geissler, Edward K.
name: Obed, Aiman
name: Schlitt, Hans J.
Publisher: name: Universität Regensburg
Year: 2010
Subjects: subject: 610 Medizin

description: Background Patients undergoing liver transplantation with preexisting renal dysfunction are prone to further renal impairment with the early postoperative use of Calcineurin-inhibitors. However, there is only little scientific evidence for the safety and efficacy of de novo CNI free "bottom-up" regimens in patients with impaired renal function undergoing liver transplantation. This is a single-center study pilot-study (PATRON07) investigating safety and efficacy of CNI-free, "bottom-up" immunosuppressive (IS) strategy in patients undergoing liver transplantation (LT) with renal impairment prior to LT. Methods/Design Patients older than 18 years with renal impairment at the time of liver transplantation eGFR < 50 ml/min and/or serum creatinine levels > 1.5 mg/dL will be included. Patients in will receive a CNI-free combination therapy (basiliximab, MMF, steroids and delayed Sirolimus). Primary endpoint is the incidence of steroid resistant acute rejection within the first 30 days after LT. The study is designed as prospective two-step trial requiring a maximum of 29 patients. In the first step, 9 patients will be included. If 8 or more patients show no signs of biopsy proven steroid resistant rejection, additional 20 patients will be included. If in the second step a total of 27 or more patients reach the primary endpoint the regimen is regarded to be safe and efficient. Discussion If a CNI-free-"bottom-up" IS strategy is safe and effective, this may be an innovative concept in contrast to classic top-down strategies that could improve the patient short and long-time renal function as well as overall complications and survival after LT. The results of PATRON07 may be the basis for a large multicenter RCT investigating the new "bottom-up" immunosuppressive strategy in patients with poor renal function prior to LT.
Detection of highly conductive surface electron states in topological crystalline insulators Pb1−xSnxSe using laser terahertz radiation
Creators: name: Egorova, S. G.
name: Chernichkin, V. I.
name: Ryabova, L. I.
name: Skipetrov, E. P.
name: Yashina, L. V.
name: Danilov, S. N.
name: Ganichev, Sergey
name: Khokhlov, D. R.
Publisher: name: Universität Regensburg
Year: 2015
Subjects: subject: 530 Physik

description: We suggest a method for detection of highly conductive surface electron states including topological ones. The method is based on measurements of the photoelectromagnetic effect using terahertz laser pulses. In contrast to conventional transport measurements, the method is not sensitive to the bulk conductivity. The method is demonstrated on an example of topological crystalline insulators Pb1−xSnxSe. It is shown that highly conductive surface electron states are present in Pb1−xSnxSe both in the inverse and direct electron energy spectrum.
Skating the line : a narrative inquiry-based study of former figure skaters' tensions in their sport
Creators: name: Mills, Catherine M.
Publisher: name: University of British Columbia
Year: 2017

description: Figure skaters skate a fine line as they navigate pressures to execute physically demanding, technical skills while maintaining the aesthetics of movements, appearance, and musicality. These conditions along with embedded narratives of success and performance affect the experiences of every competitive figure skater. As a former figure skater and coach, in this research, I explore the experiences of figure skaters and the inherent tensions they endure (Clandinin, Murphy, Huber, & Orr, 2009). Integrating theories and methods from organizational culture and narrative inquiry, my research explores the experiences of athletes within the culture of high-performance figure skating. I recruited seven former figure skaters (four female and three male) who had competed at a Senior Competitive level in Canada. The research followed three guiding questions: • What tensions do former figure skaters identify in relation to their experience as high-performance figure skaters? • How are these tensions related to the organizational culture of figure skating? • How do participants reflect on these tensions over time? Using artifacts to elicit conversations and reflections, I completed three to four interviews with each participant. I present their stories in a variety of narrative formats to better capture the feel of the interviews and their lived experiences. The figure skaters experienced multiple tensions across their careers as they embraced the lifestyle of a skater and during transitions away from the sport. Tensions included monitoring bodies, an overriding emphasis on competitions and winning, and the importance of music, choreography, and appearance in their overall performance as elite figure skaters. While many tensions were taken-for-granted as being a high-performance athlete, once removed from the sport, participants became aware of the sacrifices they had made and how some aspects of the culture had influenced their mental health and well-being. A critical analysis of the normalized aspects of the sport revealed an emphasis on performance deeply embedded across all levels of figure skating’s organizational culture (Schein, 2010). The dissertation highlights how participants became part of the problematic culture, accepting its localized terms and conditions which in turn served to reinforce and re-create the culture’s dominant values and norms (Alvesson, 2013; Smircich, 1983).
A Candidate Gene Association Study Identifies DAPL1 as a Female-Specific Susceptibility Locus for Age-Related Macular Degeneration (AMD)
Creators: name: Grassmann, Felix
name: Friedrich, Ulrike
name: Fauser, Sascha
name: Schick, Tina
name: Milenkovic, Andrea
name: Schulz, Heidi L.
name: von Strachwitz, Claudia N.
name: Bettecken, Thomas
name: Lichtner, Peter
name: Meitinger, Thomas
name: Arend, Nicole
name: Wolf, Armin
name: Haritoglou, Christos
name: Rudolph, Guenther
name: Chakravarthy, Usha
name: Silvestri, Giuliana
name: McKay, Gareth J.
name: Freitag-Wolf, Sandra
name: Krawczak, Michael
name: Smith, R. Theodore
name: Merriam, John C.
name: Merriam, Joanna E.
name: Allikmets, Rando
name: Heid, Iris M.
name: Weber, Bernhard H. F.
Publisher: name: Universität Regensburg
Year: 2015
Subjects: subject: Age-related macular degeneration; Death-associated protein-like 1, DAPL1; Canonical DAPL1 isoforms; Genetic association study
subject: 610 Medizin

description: Age-related macular degeneration (AMD) is the leading cause of blindness among white caucasians over the age of 50 years with a prevalence rate expected to increase markedly with an anticipated increase in the life span of the world population. To further expand our knowledge of the genetic architecture of the disease, we pursued a candidate gene approach assessing 25 genes and a total of 109 variants. Of these, synonymous single nucleotide polymorphism (SNP) rs17810398 located in death-associated protein-like 1 (DAPL1) was found to be associated with AMD in a joint analysis of 3,229 cases and 2,835 controls from five studies [combined PADJ = 1.15 × 10−6, OR 1.332 (1.187–1.496)]. This association was characterized by a highly significant sex difference (Pdiff = 0.0032) in that it was clearly confined to females with genome-wide significance [PADJ = 2.62 × 10−8, OR 1.541 (1.324–1.796); males: PADJ = 0.382, OR 1.084 (0.905–1.298)]. By targeted resequencing of risk and non-risk associated haplotypes in the DAPL1 locus, we identified additional potentially functional risk variants, namely a common 897-bp deletion and a SNP predicted to affect a putative binding site of an exonic splicing enhancer. We show that the risk haplotype correlates with a reduced retinal transcript level of two, less frequent, non-canonical DAPL1 isoforms. DAPL1 plays a role in epithelial differentiation and may be involved in apoptotic processes thereby suggesting a possible novel pathway in AMD pathogenesis.
Algorithmic Music and the Philosophy of Time
Creators: name: Rohrhuber, Julian
Publisher: name: Zenodo
Year: 2018
Subjects: philosophy of time, algorithmic music, clockwork, sonification

description: What is time? This question has captivated philosophy again and again. The present chapter investigates in how far algorithms involve temporality in a specific form, and why algorithmic music is a distinctive way of understanding time.

Its orienting undercurrent is the idea that temporality, by its very nature, gives rise to conflictual perspectives that resist the attempt to be rendered in terms of a unified presence. They are coordinates of a tension field in which the algorithmic is necessarily embedded and invested, and which unfolds in algorithmic music. Drawing from a selection of examples and sources, the chapter leads through a series of such contradictions and touches upon a few interesting theories of time that have sprung from philosophy, music, and computer science, as to actualise their mutual import.
description: Modified preprint of Chapter 2 in: Alex McLean and Roger T. Dean, (eds.): The Oxford Handbook of Algorithmic Music, Oxford University Press, 2018.

ISBN: 9780190226992

https://doi.org/10.1093/oxfordhb/9780190226992.013.1
On rings of commuting partial differential operators
Creators: name: Zheglov, A. B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We give a natural generalization of the classification of commutative rings of ordinary differential operators, given in works of Krichever, Mumford, Mulase, and determine commutative rings of operators in a completed ring of partial differential operators in two variables (satisfying certain mild conditions) in terms of Parshin's generalized geometric data. It uses a generalization of M.Sato's theory and is constructible in both ways.
description: 40 p. V2: This is an extended version with corrested typos and inaccuracies in some definitions and claims; several statements and remarks in part 3 added; new part 4 with more examples and a new theorem 4.1 added; introduction extended; new references added V3: Introduction is slightly modified, several remarks added, typos corrected V4: minor change
title: FEATURES OF WORKING CONDITIONS AND PSYCHOEMOTIONAL STATUS OF DOCTORS-COSMETOLOGISTS
Creators: name: Latyshevskaya, Natal'ya I.
name: Kovaleva, Marina D.
name: Delaryu, Vladimir V.
name: Shestopalova, Elena L.
name: Kraynova, Irina Yu.
Publisher: name: Astrakhan State Medical University
Year: 2021

description: Abstract. The number of cosmetic services has increased in our country in recent years.
The aim of the study is to assess the extent of strain and the extent of intensity of cosmetolo-gists(doctors) production process, their psychoemotional status that is formed in the process of profes-sional activity. Two observation groups were formed: at the age of 28 to 39 years and at the age of 40–53 years. Traditional occupational hygiene methods were used to assess working conditions. The mobility of nervous processes and the functional state of the locomotor apparatus, levels of neuropsy-chic stress and anxiety were estimated.
Results: The extent of strain and the extent of intensity of cosmetologists production process are qualified as permissible (type 2). The development of fatigue in doctors of both age groups was re-vealed by the end of the working day. However, the degree of psychoemotional and sensory stress among physicians in the older age group is more pronounced and this indicates a decrease in the abil-ity to concentrate and distribute attention. More than one third of doctors experience an increased and high level of anxiety, which is significantly more pronounced among doctors of the older group. It is necessary to comprehensively study the work of cosmetologists for conclusion about the degree of harm and danger and for argumentation of priority health risk factors.
Key words: cosmetologists(doctors), the extent of strain and the extent of intensity, psycho-emotional status.
Sustainability Reporting - A Challenge for Serbian Companies
Creators: name: Stojanović-Blab, Maja
name: Blab, Daniel
name: Spasić, Dejan
Publisher: name: Universität Regensburg
Year: 2016
Subjects: subject: sustainability reporting, GRI, Serbia, non-financial information, disclosure
subject: 330 Wirtschaft

description: The purpose of this paper is to point out that sustainability reporting is also important for companies which are operating in developing countries, such as Serbia, but they have a lot of challenges on the road to sustainability reporting. The aim of the conducted research is to determine the level of sustainability reporting by the companies based in Serbia, to consider to which extent they are familiar with the sustainability reporting guidelines and to identify the application level of the Global Reporting Initiative (GRI) Guidelines in the preparation of sustainability reports. The research is realized by the method of descriptive statistics and correlation analysis. The results of the study show that the level of sustainability reporting by Serbian companies included in the sample is low and not satisfactory.
Robust spin-Orbit torque and spin-galvanic effect at the Fe/GaAs (001) Interface at room temperature
Creators: name: Chen, L.
name: Decker, Martin
name: Kronseder, Matthias
name: Islinger, Robert
name: Gmitra, Martin
name: Schuh, Dieter
name: Bougeard, Dominique
name: Fabian, Jaroslav
name: Weiss, Dieter
name: Back, Christian H.
Publisher: name: Universität Regensburg
Year: 2016
Subjects: subject: 530 Physik

description: Interfacial spin-orbit torques (SOTs) enable the manipulation of the magnetization through in-plane charge currents, which has drawn increasing attention for spintronic applications. The search for material systems providing efficient SOTs, has been focused on polycrystalline ferromagnetic metal/non-magnetic metal bilayers. In these systems, currents flowing in the non-magnetic layer generate—due to strong spin–orbit interaction—spin currents via the spin Hall effect and induce a torque at the interface to the ferromagnet. Here we report the observation of robust SOT occuring at a single crystalline Fe/GaAs (001) interface at room temperature. We find that the magnitude of the interfacial SOT, caused by the reduced symmetry at the interface, is comparably strong as in ferromagnetic metal/non-magnetic metal systems. The large spin-orbit fields at the interface also enable spin-to-charge current conversion at the interface, known as spin-galvanic effect. The results suggest that single crystalline Fe/GaAs interfaces may enable efficient electrical magnetization manipulation.
Thermoelectric Effects in Nanowire-Based MOSFETs
Creators: name: Bosisio, Riccardo
name: Fleury, Geneviève
name: Gorini, Cosimo
name: Pichard, Jean-Louis
Publisher: name: Universität Regensburg
Year: 2017
Subjects: subject: 530 Physik

description: We review a series of works describing thermoelectric effects in gated disordered nanowires (field effect transistor device configuration). After considering the elastic coherent regime characterizing sub-Kelvin temperatures, we study the inelastic activated regime occurring at higher temperatures, where electronic transport is dominated by phonon-assisted hops between localised states (Mott variable range hopping). The thermoelectric effects are studied as a function of the location of the Fermi level inside the nanowire conduction band, notably around its edges where they become very large. We underline the interest of using electron-phonon coupling around the band edges of large arrays of parallel nanowires for energy harvesting and hot spot cooling at small scales. Multiterminal thermoelectric transport and ratchet effects are eventually considered in the activated regime.
Curved infinity-algebras and their characteristic classes
Creators: name: Lazarev, Andrey
name: Schedler, Travis
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper we study a natural extension of Kontsevich's characteristic class construction for A-infinity and L-infinity algebras to the case of curved algebras. These define homology classes on a variant of his graph homology which allows vertices of valence >0. We compute this graph homology, which is governed by star-shaped graphs with odd-valence vertices. We also classify nontrivially curved cyclic A-infinity and L-infinity algebras over a field up to gauge equivalence, and show that these are essentially reduced to algebras of dimension at most two with only even-ary operations. We apply the reasoning to compute stability maps for the homology of Lie algebras of formal vector fields. Finally, we explain a generalization of these results to other types of algebras, using the language of operads.
description: Final version, to appear in J. Topology. 28 pages
Properties and uses of the Wilson flow in lattice QCD
Creators: name: Lüscher, Martin
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Theoretical and numerical studies of the Wilson flow in lattice QCD suggest that the gauge field obtained at flow time t>0 is a smooth renormalized field. The expectation values of local gauge-invariant expressions in this field are thus well-defined physical quantities that probe the theory at length scales on the order of sqrt(t). Moreover, by transforming the QCD functional integral to an integral over the gauge field at a specified flow time, the emergence of the topological (instanton) sectors in the continuum limit becomes transparent and is seen to be caused by a dynamical effect that rapidly separates the sectors when the lattice spacing is reduced from 0.1 fm to smaller values.
description: Plain TeX source, 21 pages, 4 figures. Corrected figure 2, figure 3 and the quoted values of t0/a^2 in table 1, following the discovery of a bug in the analysis programs (thanks to Yoshifumi Nakamura)
Adaptive identity and access management—contextual data based policies
Creators: name: Hummer, Matthias
name: Kunz, Michael
name: Netter, Michael
name: Fuchs, Ludwig
name: Pernul, Günther
Publisher: name: Universität Regensburg
Year: 2016
Subjects: subject: Identity management, Policy management, Policy mining, Access control, Security management
subject: 004 Informatik

description: Due to compliance and IT security requirements, company-wide identity and access management within organizations has gained significant importance in research and practice over the last years. Companies aim at standardizing user management policies in order to reduce administrative overhead and strengthen IT security. These policies provide the foundation for every identity and access management system no matter if poured into IT systems or only located within responsible identity and access management (IAM) engineers’ mind. Despite its relevance, hardly any supportive means for the automated detection and refinement as well as management of policies are available. As a result, policies outdate over time, leading to security vulnerabilities and inefficiencies. Existing research mainly focuses on policy detection and enforcement without providing the required guidance for policy management nor necessary instruments to enable policy adaptibility for today’s dynamic IAM. This paper closes the existing gap by proposing a dynamic policy management process which structures the activities required for policy management in identity and access management environments. In contrast to current approaches, it utilizes the consideration of contextual user management data and key performance indicators for policy detection and refinement and offers result visualization techniques that foster human understanding. In order to underline its applicability, this paper provides an evaluation based on real-life data from a large industrial company.
Cells in Coxeter groups I
Creators: name: Belolipetsky, Mikhail V.
name: Gunnells, Paul E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Representation Theory (math.RT)
subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20G05, 20F55, 20H15

description: The purpose of this article is to shed new light on the combinatorial structure of Kazhdan-Lusztig cells in infinite Coxeter groups $W$. Our main focus is the set $\D$ of distinguished involutions in $W$, which was introduced by Lusztig in one of his first papers on cells in affine Weyl groups. We conjecture that the set $\D$ has a simple recursive structure and can be enumerated algorithmically starting from the distinguished involutions of finite Coxeter groups. Moreover, to each element of $\D$ we assign an explicitly defined set of equivalence relations on $W$ that altogether conjecturally determine the partition of $W$ into left (right) cells. We are able to prove these conjectures only in a special case, but even from these partial results we can deduce some interesting corollaries.
description: 14 pages, v4: fixed a small gap in the proof of Theorem 3.1 in the published version of the paper, we thank Jian-yi Shi for pointing the gap and for his help with the correction
Functionalized conducting polymers with polyazulene backbone
Creators: name: Daub, Joerg
name: Feuerer, M.
name: Mirlach, A.
name: Salbeck, Josef
Publisher: name: Universität Regensburg
Year: 1991
Subjects: subject: 530 Physik
subject: 540 Chemie

description: Redox-active anthraquinone and ferrocene functional groups covalently linked to electronically conducting polyazulenes (PA) are accessible by electropolymerization of the C-2 substituted azulenes 1 and 2. The polymer films were characterized by electrochemical and spectroelectrochemical methods.
When holography meets coherent diffraction imaging
Creators: name: Latychevskaia, Tatiana
name: Longchamp, Jean-Nicolas
name: Fink, Hans-Werner
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Modern imaging techniques at the molecular scale rely on utilizing novel coherent light sources like X-ray free electron lasers for the ultimate goal of visualizing such objects as individual biomolecules rather than crystals. Here, unlike in the case of crystals where structures can be solved by model building and phase refinement, the phase distribution of the wave scattered by an individual molecule must directly be recovered. There are two well-known solutions to the phase problem: holography and coherent diffraction imaging (CDI). Both techniques have their pros and cons. In holography, the reconstruction of the scattered complex-valued object wave is directly provided by a well-defined reference wave that must cover the entire detector area which often is an experimental challenge. CDI provides the highest possible, only wavelength limited, resolution, but the phase recovery is an iterative process which requires some pre-defined information about the object and whose outcome is not always uniquely-defined. Moreover, the diffraction patterns must be recorded under oversampling conditions, a pre-requisite to be able to solve the phase problem. Here, we report how holography and CDI can be merged into one superior technique: holographic coherent diffraction imaging (HCDI). An inline hologram can be recorded by employing a modified CDI experimental scheme. We demonstrate that the amplitude of the Fourier transform of an inline hologram is related to the complex-valued visibility, thus providing information on both, the amplitude and the phase of the scattered wave in the plane of the diffraction pattern. With the phase information available, the condition of oversampling the diffraction patterns can be relaxed, and the phase problem can be solved in a fast and unambiguous manner.
description: 22 pages, 7 figures
Electric Field Control of Spin Lifetimes in Nb-SrTiO3 by Spin-Orbit Fields
Creators: name: Kamerbeek, M.
name: Högl, Petra
name: Fabian, Jaroslav
name: Banerjee, Tamalika
Publisher: name: Universität Regensburg
Year: 2015
Subjects: subject: 530 Physik

description: We show electric field control of the spin accumulation at the interface of the oxide semiconductor Nb−SrTiO3 with Co/AlOx spin injection contacts at room temperature. The in-plane spin lifetime τ∥, as well as the ratio of the out-of-plane to in-plane spin lifetime τ⊥/τ∥, is manipulated by the built-in electric field at the semiconductor surface, without any additional gate contact. The origin of this manipulation is attributed to Rashba spin orbit fields (SOFs) at the Nb−SrTiO3 surface and shown to be consistent with theoretical model calculations based on SOF spin flip scattering. Additionally, the junction can be set in a high or low resistance state, leading to a nonvolatile control of τ⊥/τ∥, consistent with the manipulation of the Rashba SOF strength. Such room temperature electric field control over the spin state is essential for developing energy-efficient spintronic devices and shows promise for complex oxide based (spin) electronics.
Interplay of Rashba/Dresselhaus spin splittings probed by photogalvanic spectroscopy –A review
Creators: name: Ganichev, Sergey
name: Golub, Leonid E.
Publisher: name: Universität Regensburg
Year: 2014
Subjects: subject: photogalvanics, Rashba/Dresselhaus spin splittings, semiconductors
subject: 530 Physik

description: The paper reviews the interplay of Rashba/Dresselhaus spin splittings in various two-dimensional systems made of zinc-blende III–V, wurtzite, and SiGe semiconductors. We discuss the symmetry aspects of the linear and cubic in electron wavevector spin splitting in heterostructures prepared on (001)-, (110)-, (111)-, (113)-, (112)-, and (013)- oriented substrates and address the requirements for suppression of spin relaxation and realization of the persistent spin helix state. In experimental part of the paper, we overview experimental results on the interplay of Rashba/Dresselhaus spin splittings probed by photogalvanic spectroscopy: The method based on the phenomenological equivalence of the linear-in-wavevector spin splitting and several photogalvanic phenomena.
New Interaction between Dark Energy and Dark Matter Changes Sign during Cosmological Evolution
Creators: name: Sun, Cheng-Yi
name: Yue, Rui-Hong
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is found by Cai and Su that the interaction between dark energy and cold dark matter is likely to change the sign during the cosmological evolution. Motivated by this, we suggest a new form of interaction between dark energy and dark matter, which changes from negative to positive as the expansion of our universe changes from decelerated to accelerated. We find that the interacting model is consistent with the second law of thermodynamics and the observational constraints. And, we also discuss the unified adiabatic-squared sound speed of the model.
description: 16 pages, 3 figure, 1 table. Final version in PRD
In situ prepared copper nanoparticles on modified KIT-5 as an efficient recyclable catalyst and its applications in click reactions in water
Creators: name: Mommahed Heravi, Majid
name: Mirsafaei, Razieh
name: Ahmadi, Shervin
name: Moslemin, Mohammad Hossein
name: Hosseinnejad, Tayebeh
Publisher: name: figshare
Year: 2022
Subjects: subject: 30302 Nanochemistry and Supramolecular Chemistry
subject: FOS: Chemical sciences
subject: 30701 Quantum Chemistry
subject: 39904 Organometallic Chemistry
subject: Organic Chemistry
subject: 30502 Natural Products Chemistry
subject: 30599 Organic Chemistry not elsewhere classified
subject: Computational Chemistry
subject: Nuclear Chemistry
subject: 30205 Non-metal Chemistry
subject: 30504 Organic Green Chemistry
subject: 30303 Optical Properties of Materials

description: , , , , , , , Air , Catalyst activity, Catalysts, Copper, Copper compounds, Liquid chromatography, Nanoparticles, Silica,Solvents, Synthesis (chemical), Click reaction, Green solvents, Mesoporous Silica, , Three component reactions, Density functional theory.
Das Gebot der Rechtsbehelfserschöpfung vor dem UN-Ausschuss für die Rechte von Menschen mit Behinderung: Die Entscheidung in der Sache S.C./Brasilien
Creators: name: Uerpmann-Wittzack, Robert
name: Prechtl, Alina
Publisher: name: Universität Regensburg
Year: 2016
Subjects: subject: 340 Recht
subject: PR 1075

description: In S.C./Brazil, the Committee on the Rights of Persons with disabilities dismissed an individual complaint for non-exhaustion of local remedies in a case where the author had not been able to obtain legal aid for a domestic remedy. The case raises difficult questions of ex officio scrutiny, the right to be heard, burden of proof, and effectiveness of local remedies, which the Committee fails to address. Apparently, the Committee, which is an expert body for issues concerning disabilities and the rights of persons with disabilities, is not qualified to address complex issues of procedural law.
title: DENTAL IMPLANTATION AS THE OPTIMAL METHOD  OF FIXING REMOVABLE PROSTHESES
Creators: name: Zhidovinov, Aleksandr V.
name: Glodenko, Dar'ya A.
Publisher: name: Astrakhan State Medical University
Year: 2021

description: Abstract. In current time of dentistry, dental implantation is the optimal method for solving the problem of missing teeth. This article discusses the positive aspects of using dental implantation to im-prove the quality of patient's life in the treatment of partial and complete anodontia. The advantages, as well as disadvantages and complications of various methods of treatment are shown. The main fac-tors that directly affect the restoration of dentition are identified. The optimal choice of materials, methods and terms of dental implantation, as well as orthopedic dentistry phase and surgical dentistry phase of treatment are determined. The importance of the participation of each method and stage in the process of dental treatment of the patient is shown. Based by studied information, it can be argued that removable prosthetics based on dental implants is a highly-effective, and in some cases the only method that gives a positive result. Key words: dental implantation, implants, partial prosthesis, missing teeth, orthopedic dentistry, surgical dentistry.
On Convex optimization without convex representation
Creators: name: Lasserre, Jean-Bernard
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We consider the convex optimization problem P: min {f(x): x in K} where "f" is convex continuously differentiable, and K is a compact convex set in Rn with representation {x: g_j(x) >=0, j=1,;;,m} for some continuously differentiable functions (g_j). We discuss the case where the g_j's are not all concave (in contrast with convex programming where they all are). In particular, even if the g_j's are not concave, we consider the log-barrier function phi_μwith parameter μ, associated with P, usually defined for concave functions (g_j). We then show that any limit point of any sequence (x_μ) of stationary points of phi_μ, μ->0, is a Karush-Kuhn-Tucker point of problem P and a global minimizer of f on K.
description: 7 pages; 1 figure
Si(gh)ting Israel/Palestine : the slow violence of international tourism
Creators: name: Yang, Connie
Publisher: name: University of British Columbia
Year: 2017

description: This thesis explores the ways in which the scopic regimes of tourism shape the production of “Israel” and “Palestine” as geopolitical entities by focusing on international, primarily non-Jewish tourists. I examine the extent to which spatial practices—both representational and material—reinforce or renegotiate dominant geopolitical imaginaries. Through discursive analysis and participant observation on guided tours in Tel Aviv, Jerusalem, and the West Bank, I analyze the contrasting imagined and performed geographies of Israel’s territoriality. I argue that the tourist gaze functions as a form of slow violence in Israel/Palestine, as disputed narratives are legitimized and naturalized through the concealment of the dispossession and occupation that are fundamental to the Israeli geopolitical project. In exposing how tourist processes serve as a critical juncture in which geopolitical contestation occurs, I seek to rethink the parameters of the Israeli-Palestinian conflict by examining its entanglements with seemingly apolitical, banal cultural practices.
On affine maps on non-compact convex sets and some characterizations of finite-dimensional solid ellipsoids
Creators: name: Kimura, Gen
name: Nuida, Koji
Publisher: name: arXiv
Year: 2010
Subjects: subject: Geometric Topology (math.GT)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 52C07 (Primary) 81P16 (Secondary)

description: Convex geometry has recently attracted great attention as a framework to formulate general probabilistic theories. In this framework, convex sets and affine maps represent the state spaces of physical systems and the possible dynamics, respectively. In the first part of this paper, we present a result on separation of simplices and balls (up to affine equivalence) among all compact convex sets in two- and three-dimensional Euclidean spaces, which focuses on the set of extreme points and the action of affine transformations on it. Regarding the above-mentioned axiomatization of quantum physics, our result corresponds to the case of simplest (2-level) quantum system. We also discuss a possible extension to higher dimensions. In the second part, towards generalizations of the framework of general probabilistic theories and several existing results including ones in the first part from the case of compact and finite-dimensional physical systems as in most of the literatures to more general cases, we study some fundamental properties of convex sets and affine maps that are relevant to the above subject.
description: 25 pages, a part of this work is to be presented at QIP 2011, Singapore, January 10-14, 2011; (v2) References updated (v3) Introduction and references updated (v4) Re-organization of the paper (results not added)
Programa de Investigación para el soporte de los trastornos neuropsiquiátricos prolongados en la comunidad
Creators: name: Franco Martín, M. A.
Publisher: name: Zenodo
Year: 2019
Subjects: Psicociencias; Grupo de investigación; Líneas de investigación; Proyectos de investigación

description: Presentación del Grupo de Investigación en Psicociencias (Grupo IBSAL NEUR-08) el día 18 de marzo de 2019 en el Salón de Actos del Hospital Clínico de Salamanca
Resonant scattering by magnetic impurities as a model for spin-relaxation in bilayer graphene
Creators: name: Kochan, Denis
name: Irmer, Susanne
name: Gmitra, Martin
name: Fabian, Jaroslav
Publisher: name: Universität Regensburg
Year: 2015
Subjects: subject: 530 Physik

description: We propose that the observed spin relaxation in bilayer graphene is due to resonant scattering by magnetic impurities. We analyze a resonant scattering model due to adatoms on both dimer and nondimer sites, finding that only the former give narrow resonances at the charge neutrality point. Opposite to single-layer graphene, the measured spin-relaxation rate in the graphene bilayer increases with carrier density. Although it has been commonly argued that a different mechanism must be at play for the two structures, our model explains this behavior rather naturally in terms of different broadening scales for the same underlying resonant processes. Not only do our results—using robust and first-principles inspired parameters—agree with experiment, they also predict an experimentally testable sharp decrease of the spin-relaxation rate at high carrier densities.
Helicoidal surfaces rotating/translating under the mean curvature flow
Creators: name: Halldorsson, Hoeskuldur P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C44 (Primary) 53A10, 53C42 (Secondary)

description: We describe all possible self-similar motions of immersed hypersurfaces in Euclidean space under the mean curvature flow and derive the corresponding hypersurface equations. Then we present a new two-parameter family of immersed helicoidal surfaces that rotate/translate with constant velocity under the flow. We look at their limiting behaviour as the pitch of the helicoidal motion goes to 0 and compare it with the limiting behaviour of the classical helicoidal minimal surfaces. Finally, we give a classification of the immersed cylinders in the family of constant mean curvature helicoidal surfaces.
description: 21 pages, 22 figures, final version
Sean's Case Study: Making quality research accessible
Creators: name: Gleeson, Jo
name: Cutler, Blake
name: Hall, Genevieve
name: Rickinson, Mark
name: Walsh, Lucas
Publisher: name: Monash University
Year: 2023
Subjects: Teacher education and professional development of educators
Educational administration, management and leadership
Professional education and training

description: This practitioner case study focuses on Sean and how he approached the quality use of research in his context. This case study was developed by the Monash Q Project (2019-2023) and published as part of the resources for the Monash Faculty of Education short course "An introduction to using research to inform educational practice." The course is designed for teachers, school leaders and education system actors who are beginning to use research in their work and are looking to use research evidence to support their practice.