cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Time-Domain Interferometry of Surface Plasmons at Nonlinear Continuum Hot Spots in Films of Silver Nanoparticles
Creators: name: Klemm, Philippe
name: Haug, Tobias
name: Bange, Sebastian
name: Lupton, John M.
Publisher: name: Universität Regensburg
Year: 2014
Subjects: subject: 530 Physik

description: Nonlinear continuum generation from diffraction-limited hot spots in rough silver films exhibits striking narrow-band intensity resonances in excitation wavelength. Time-domain Fourier spectroscopy uncovers how these resonances arise due to the formation of a “plasmon staircase”, a discreteness in the fundamental oscillation of the plasmon excitations responsible for generating the white-light continuum. Whereas multiple scattering from discrete antennas can be invoked to explain hot spot formation in random assemblies of isolated particles, hot spots in films of fused nanoparticles are excited by interfering propagating surface plasmons, launched by scattering from individual nanoparticle antennas. For closed films, discrete propagating plasmons interact coherently over distances of tens of microns to pump the hot spot.
Dagger closure in regular rings containing a field
Creators: name: Brenner, Holger
name: Stäbler, Axel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13A35, 13A18 (Primary) 13D45 (Secondary)

description: We prove that dagger closure is trivial in regular domains containing a field and that graded dagger closure is trivial in polynomial rings over a field. We also prove that Heitmann's full rank one closure coincides with tight closure in positive characteristic under some mild finiteness conditions. Furthermore, we prove that dagger closure is always contained in solid closure and that the forcing algebra for an element contained in dagger closure is parasolid.
description: 12 pages, v2: added one corollary and two references, v3: Major simplification in proof of main thm due to the suggestion of a referee, minor changes in exposition
The relationship between theory of mind and mental rotation ability in preschool aged children
Creators: name: Lehmann, Jennifer
name: Jansen, Petra
Publisher: name: Universität Regensburg
Year: 2019
Subjects: subject: theory of mindmental rotationperspective takingpreschool children
subject: 150 Psychologie

description: This study investigates the relationship between two tasks of perspective taking, the social perspective taking ability, namely theory of mind, and the spatial one, namely mental rotation, in preschool aged children. Both abilities develop during preschool age (Frick et al., 2013; Wellmann et al., 2001). We investigated 83 children aged between three and four years regarding their theory of mind and mental rotation ability. A significant correlation between both tasks was found for those children, who were able to solve the mental rotation task. This relation was no longer significant when analyzing the two age groups separately. Due to the small sample size as well as the performance in the mental rotation test more research is needed to investigate this relationship and its role in development.
title: Position of Physical activity in Rheumatoid Arthritis: primum non nocere.
title: Place de l’activité physique dans la Polyarthrite Rhumatoïde : primum non nocere.
Creators: name: Skalli, Sara
Publisher: name: Revue Marocaine de Rhumatologie (RMR)
Year: 2021
Subjects: Polyarthrite rhumatoïde; Activité physique.

description: Rheumatoid arthritis (RA) is a chronic inflammatory disease that mostly affects peripheral joints. Its evolution leads to a destruction of the joint structures. It is associated with systemic manifestations, which mainly concern the cardiovascular system and the respiratory system, leading to physical deconditioning. Physical activity (PA) refers to all movements produced by skeletal muscles. It responds to a biomechanical requirements correlated with stability and mobility. The benefits of physical activity have been proven and documented in both the general population and the chronic osteoarticular diseases. PA in the population with RA remains significantly low compared to the general population. This can be explained by the presence of barriers related to the disease, the patient and the physician. The integration of PA in the therapeutic protocol of RA allows better management of the disease. Its prescription must be supervised, adapted to each patient and always preceded by an evaluation to look for cardiovascular and musculoskeletal limitations to its practice.
description: La Polyarthrite Rhumatoïde (PR) est une maladie inflammatoire d’évolution chronique qui touche préférentiellement les articulations périphériques, aboutissant à une destruction des structures articulaires. Il s’y associe une atteinte systémique, notamment celle du système cardiovasculaire et du système respiratoire, entraînant un déconditionnement physique. L’activité physique correspond à des mouvements produits par les muscles squelettiques tout en répondant à des impératifs biomécaniques englobant stabilité et mobilité. Les bénéfices de l’activité physique sur la santé ont été prouvés et documentés aussi bien dans la population générale qu’au cours des maladies chroniques ostéoarticulaires. L’activité physique chez la population atteinte de PR reste significativement faible par rapport à la population générale. Cela peut être expliqué par la présence de barrières liées à la maladie, au malade et au praticien. L’intégration de l’AP dans la prise en charge des patients atteints de PR permet une meilleure gestion de la maladie. Sa prescription doit être encadrée, adaptée et toujours précédée d’une évaluation visant à rechercher les contre-indications et les limitations cardiovasculaires et musculo-squelettiques à sa pratique.
The Vertex Algebra $M(1)^+$ and Certain Affine Vertex Algebras of Level -1
Creators: name: Adamović, Dražen
name: Perše, Ozren
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We give a coset realization of the vertex operator algebra $M(1)^+$ with central charge $\ell$. We realize $M(1)^+$ as a commutant of certain affine vertex algebras of level -1 in the vertex algebra $L_{C_{\ell} ^{(1)}}(-\tfrac{1}{2}Λ_0) \otimes L_{C_{\ell} ^{(1)}}(-\tfrac{1}{2}Λ_0)$. We show that the simple vertex algebra $L_{C_{\ell} ^{(1)}}(-Λ_0)$ can be (conformally) embedded into $L_{A_{2 \ell -1} ^{(1)}} (-Λ_0)$ and find the corresponding decomposition. We also study certain coset subalgebras inside $L_{C_{\ell} ^{(1)}}(-Λ_0)$.
Pseudoduality and Complex Geometry in Sigma Models
Creators: name: Sarisaman, Mustafa
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the pseudoduality transformations in two dimensional N = (2, 2) sigma models on Kähler manifolds. We show that structures on the target space can be transformed into the pseudodual manifolds by means of (anti)holomorphic preserving mapping. This map requires that torsions related to individual spaces and riemann connection on pseudodual manifold must vanish. We also consider holomorphic isometries which puts additional constraints on the pseudoduality.
description: 12 pages; typos corrected; To appear in Int. J. Geom. Meth. Mod. Phys
Highly soluble Cu(I)-acetonitrile salts as building blocks for novel phosphorus-rich organometallic-inorganic compounds
Creators: name: Moussa, Medhi Elsayed
name: Piesch, Martin
name: Fleischmann, Martin
name: Schreiner, Andrea
name: Seidl, Michael
name: Scheer, Manfred
Publisher: name: Universität Regensburg
Year: 2018
Subjects: subject: 540 Chemie

description: The synthesis of the air-stable and highly soluble Cu(I)-acetonitrile salts [Cu(CH3CN)3.5][FAl] (1) ([FAL] = FAl{OC(C6F10)(C6F5)}3) and [Cu(CH3CN)4][TEF] (2) ([TEF] = Al{OC(CF3)3}4) is presented. Compound 1 reacts with the organometallic polyphosphorus complexes [Cp2Mo2(CO)4(ƞ2-P2)] (A) and [(Cp*Fe(ƞ5-P5)] (B) and salt 2 reacts with B to form one new (3) and three unprecedented (4-6) phosphorus-rich Cu(I) dimers with the general formulas [Cu2(µ,ƞ1:ƞ1-A)2(ƞ2-A)2][FAl]2 (3), [Cu2(µ,ƞ1:ƞ1-A)2(ƞ1-CH3CN)4][FAl]2 (4), [Cu2(µ,ƞ1:ƞ1-B)2(ƞ1-CH3CN)4][FAl]2 (5) and [Cu2(µ,ƞ1:ƞ1-B)2(ƞ1-CH3CN)4][TEF]2 (6).
description: PDF zugänglich ab 12.10.19 (RSC-Embargofrist)
Identifying the Host Galaxy of Gravitational Wave Signals
Creators: name: Nuttall, Laura K
name: Sutton, Patrick J
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: One of the goals of the current LIGO-GEO-Virgo science run is to identify transient gravitational wave (GW) signals in near real time to allow follow-up electromagnetic (EM) observations. An EM counterpart could increase the confidence of the GW detection and provide insight into the nature of the source. Current GW-EM campaigns target potential host galaxies based on overlap with the GW sky error box. We propose a new statistic to identify the most likely host galaxy, ranking galaxies based on their position, distance, and luminosity. We test our statistic with Monte Carlo simulations of GWs produced by coalescing binaries of neutron stars (NS) and black holes (BH), one of the most promising sources for ground-based GW detectors. Considering signals accessible to current detectors, we find that when imaging a single galaxy, our statistic correctly identifies the true host ~20% to ~50% of the time, depending on the masses of the binary components. With five narrow-field images the probability of imaging the true host increases to ~50% to ~80%. When collectively imaging groups of galaxies using large field-of-view telescopes, the probability improves to ~30% to ~60% for a single image and to ~70% to ~90% for five images. For the advanced generation of detectors (c. 2015+), and considering binaries within 100 Mpc (the reach of the galaxy catalogue used), the probability is ~40% for one narrow-field image, ~75% for five narrow-field images, ~65% for one wide-field image, and ~95% for five wide-field images, irrespective of binary type.
description: 5 pages, 2 figures
Distributed and Scalable Optimization for Robust Proton Treatment Planning
Creators: name: Fu, Anqi
name: Taasti, Vicki T.
name: Zarepisheh, Masoud
Publisher: name: arXiv
Year: 2023
Subjects: subject: Medical Physics (physics.med-ph)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Optimization and Control (math.OC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Purpose: The importance of robust proton treatment planning to mitigate the impact of uncertainty is well understood. However, its computational cost grows with the number of uncertainty scenarios, prolonging the treatment planning process. We developed a fast and scalable distributed optimization platform that parallelizes this computation over the scenarios. Methods: We modeled the robust proton treatment planning problem as a weighted least-squares problem. To solve it, we employed an optimization technique called the Alternating Direction Method of Multipliers with Barzilai-Borwein step size (ADMM-BB). We reformulated the problem in such a way as to split the main problem into smaller subproblems, one for each proton therapy uncertainty scenario. The subproblems can be solved in parallel, allowing the computational load to be distributed across multiple processors (e.g., CPU threads/cores). We evaluated ADMM-BB on four head-and-neck proton therapy patients, each with 13 scenarios accounting for 3 mm setup and 3:5% range uncertainties. We then compared the performance of ADMM-BB with projected gradient descent (PGD) applied to the same problem. Results: For each patient, ADMM-BB generated a robust proton treatment plan that satisfied all clinical criteria with comparable or better dosimetric quality than the plan generated by PGD. However, ADMM-BB's total runtime averaged about 6 to 7 times faster. This speedup increased with the number of scenarios. Conclusion: ADMM-BB is a powerful distributed optimization method that leverages parallel processing platforms, such as multi-core CPUs, GPUs, and cloud servers, to accelerate the computationally intensive work of robust proton treatment planning. This results in 1) a shorter treatment planning process and 2) the ability to consider more uncertainty scenarios, which improves plan quality.
description: 20 pages, 6 figures
Evaluation and optimisation of unnatural amino acid incorporation and bioorthogonal bioconjugation for site-specific fluorescent labelling of proteins expressed in mammalian cells
Creators: name: Jakob, Leonhard
name: Gust, Alexander
name: Grohmann, Dina
Publisher: name: Universität Regensburg
Year: 2018
Subjects: subject: Bioorthogonal chemistry; Unnatural amino acids; Amber suppression; eGFP; Genetic code expansion
subject: 570 Biowissenschaften, Biologie

description: Many biophysical techniques that are available to study the structure, function and dynamics of cellular constituents require modification of the target molecules. Site-specific labelling of a protein is of particular interest for fluorescence-based single-molecule measurements including single-molecule FRET or super-resolution microscopy. The labelling procedure should be highly specific but minimally invasive to preserve sensitive biomolecules. The modern molecular engineering toolkit provides elegant solutions to achieve the site-specific modification of a protein of interest often necessitating the incorporation of an unnatural amino acid to introduce a unique reactive moiety. The Amber suppression strategy allows the site-specific incorporation of unnatural amino acids into a protein of interest. Recently, this approach has been transferred to the mammalian expression system. Here, we demonstrate how the combination of unnatural amino acid incorporation paired with current bioorthogonal labelling strategies allow the site-specific engineering of fluorescent dyes into proteins produced in the cellular environment of a human cell. We describe in detail which parameters are important to ensure efficient incorporation of unnatural amino acids into a target protein in human expression systems. We furthermore outline purification and bioorthogonal labelling strategies that allow fast protein preparation and labelling of the modified protein. This way, the complete eukaryotic proteome becomes available for single-molecule fluorescence assays.
Building the MSR Tool Kaiaulu: Design Principles and Experiences
Creators: name: Paradis, Carlos
name: Kazman, Rick
Publisher: name: arXiv
Year: 2023
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Background: Since Alitheia Core was proposed and subsequently retired, tools that support empirical studies of software projects continue to be proposed, such as Codeface, Codeface4Smells, GrimoireLab and SmartSHARK, but they all make different design choices and provide overlapping functionality. Aims: We seek to understand the design decisions adopted by these tools--the good and the bad--along with their consequences, to understand why their authors reinvented functionality already present in other tools, and to help inform the design of future tools. Method: We used action research to evaluate the tools, and to determine a set of principles and anti-patterns to motivate a new tool design. Results: We identified 7 major design choices among the tools: 1) Abstraction Debt, 2) the use of Project Configuration Files, 3) the choice of Batch or Interactive Mode, 4) Minimal Paths to Data, 5) Familiar Software Abstractions, 6) Licensing and 7) the Perils of Code Reuse. Building on the observed good and bad design decisions, we created our own tool architecture and implemented it as an R package. Conclusions: Tools should not require onerous setup for users to obtain data. Authors should consider the conventions and abstractions used by their chosen language and build upon these instead of redefining them. Tools should encourage best practices in experiment reproducibility by leveraging self-contained and readable schemas that are used for tool automation, and reuse must be done with care to avoid depending on dead code.
description: This preprint has not undergone peer review (when applicable) or any post-submission improvements or corrections. The Version of Record of this contribution is published in 13365, and is available online at https://doi.org/10.1007/978-3-031-15116-3_6
Two concurrent outbreaks of hepatitis A highlight the risk of infection for non-immune travellers to Morocco, January to June 2018
Creators: name: Gassowski, Martyna
name: Michaelis, Kai
name: Wenzel, Jürgen J.
name: Faber, Mirko
name: Figoni, Julie
name: Mouna, Lina
name: Friesema, Ingrid H. M.
name: Vennema, Harry
name: Avellón, Ana
name: Varela, Carmen
name: Sundqvist, Lena
name: Lundberg Ederth, Josefine
name: Plunkett, James
name: Balogun, Koye
name: Ngui, Siew Lin
name: Midgley, Sofie Elisabeth
name: Gillesberg Lassen, Sofie
name: Müller, Luise
Publisher: name: Universität Regensburg
Year: 2018
Subjects: subject: 610 Medizin

description: From January to June 2018, two ongoing hepatitis A outbreaks affected travellers returning from Morocco and cases in Europe without travel history, resulting in 163 patients in eight European countries. Most interviewed travel-related cases were unaware of the hepatitis A risk in Morocco. Molecular analysis revealed two distinct hepatitis A virus (HAV) strains (subgenotype IA DK2018_231; subgenotype IB V18–16428). Vaccination recommendations should be emphasised to increase awareness among non-immune travellers to Morocco and HAV-endemic countries.
title: Orthotic devices for the rheumatoid foot
title: Appareillage du pied rhumatoïde
Creators: name: Youbi, Khalid El
Publisher: name: Revue Marocaine de Rhumatologie (RMR)
Year: 2021
Subjects: Polyarthrite rhumatoïde; Pied; Orthèses; Chaussage.

description: Rheumatoid arthritis is a chronic inflammatory rheumatism frequently affecting the foot and causing several structural damages during its evolution, with impairment function and loss of the quality of life. The forefoot is usually the earliest affected, while damage to the midfoot and hindfoot occurs late and more insidiously. Clinical examination, standard x-rays and ultrasound are necessary during the disease for the diagnosis and follow-up of structural damages. The use of adequate and early orthotic device will allow the prevention, stabilization of deformities and the reduction of disability related to the foot and ankle
description: La polyarthrite rhumatoïde est un rhumatisme inflammatoire chronique touchant fréquemment le pied et responsable au cours de son évolution de dégâts structuraux de sévérité variable, avec altération de la fonction et de la qualité de vie. L’avant pied est généralement le plus précocement touché, tandis que les lésions du médio et arrière-pied surviennent tardivement et de façon plus insidieuse. L’examen clinique, les radios standards et l’échographie sont nécessaires au cours de la maladie pour le diagnostic et le suivi des lésions structurales. L’utilisation d’un appareillage adéquat et précoce permettra la prévention, la stabilisation des déformations et la diminution de l’invalidité liée au pied et à la cheville.
Designing zooming interactions for small displays with a proximity sensor
Creators: name: Ustek, Dilan
Publisher: name: University of British Columbia
Year: 2017

description: Small, high resolution touchscreens open new possibilities for wearable and embedded applications, but are a mismatch for interactions requiring appreciable movement on the screen surface. For example, multi-touch or large-scroll zooming actions suffer from occlusion and difficulties in accessing or resolving large zoom ranges or selecting small targets. Meanwhile, emerging technologies have the potential to combine many capabilities, e.g., touch- and proximity-sensitivity, flexibility and transparency. A current challenge is to develop interaction techniques that can exploit the capabilities of these new materials to solve interaction challenges presented by trends such as miniaturization and wearability such as tiny screens that only one finger of one hand can fit on. To this end, Zed-zooming exploits the capabilities of emerging near-proximity sensors to address these problems, by mapping finger height above a control surface to image size. The EZ-Zoom technique adds the pseudohaptic illusion of an elastic finger-screen connection, by exploiting non-linear scaling functions to provide a usage metaphor. In a two-part user study, we compared EZ-Zoom to touchscreen standard pinch-to-zoom on smartphone and smartwatch screens, and found (a) a significant improvement in task time and preference for the smallest screen (equivalent task time for the smartphone); and (b) that the illusion improved users' reported sense of control, provided cues about the interaction's spatial extent and dynamics, and made the interaction more natural. From our experience with the study, we conclude requirements for the development of proximity sensors in order to afford such interactions. Our work goes on to reflect on how zed-zooming can be incorporated into seamless interaction tasks. We aim to identify some characteristics of a zooming interaction that would need to be considered when designing a complete one, and explore how these characteristics play into a complete and usable zooming interaction.
The Crooks relation in optical spectra - universality in work distributions for weak local quenches
Creators: name: Heyl, Markus
name: Kehrein, Stefan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We show that work distributions and non-equilibrium work fluctuation theorems can be measured in optical spectra for a wide class of quantum systems. We consider systems where the absorption or emission of a photon corresponds to the sudden switch on or off of a local perturbation. For the particular case of a weak local perturbation, the Crooks relation establishes a universal relation in absorption as well as in emission spectra. Due to a direct relation between the spectra and work distribution functions this is equivalent to universal relations in work distributions for weak local quenches. As two concrete examples we treat the X-ray edge problem and the Kondo exciton.
description: 4+ pages, 1 figure; version as published
The morphological variations of the lateral pterygoid muscle: A systematic review
Creators: name: Stöckle, Matthias
name: Fanghänel, Jochen
name: Knüttel, Helge
name: Alamanos, Christos
name: Behr, Michael
Publisher: name: Universität Regensburg
Year: 2018
Subjects: subject: Lateral pterygoid muscle; Number of heads; Origin/Insertion; Sytematic literature review
subject: 610 Medizin

description: Background: The lateral pterygoid muscle (LPM) has been described in many anatomical and functional studies. The morphology of the LPM is still under debate because of its deep location in the infratemporal fossa and the difficulties to approach this area with different anatomical methods. Although it has been generally accepted that this muscle is mainly composed of two separate parts, other forms have been described in the past. OBJECTIVES: To conduct a systematic literature review regarding the anatomy and variations of the LPM. METHODS: We included studies published in English, German or French employing anatomical and imaging methods or a combination of the two methods. The cadavers used in the dissections had to be human and without any pathological alterations. Studies were only included when focusing on the anatomy of the LPM or its morphological variations or when taking the frequency of variations into account. We searched 26 biomedical databases including MEDLINE, EMBASE, BIOSIS Previews and Science Citation Index Expanded (part of Web of Science) through October 2014. The review was followed by the dissection of a hemisected head in two different planes. RESULTS: We identified 4279 records (2200 after deduplication) in the databases searches plus 17 articles from manual searches. 81 studies out of these articles were included in this review. 69 articles used anatomical methods, 5 imaging methods and 7 studies a combination of the two methods. 11 studies took into account that the LPM may have variations and also considered the relative frequency of each variation. The frequency of one-headed LPMs ranged between 7.7% and 26.7%, of two-headed LPMs between 61.4% and 91.1% and of three-headed LPMs between 4.0% and 35.0%. Our own dissection showed a three-headed version of the LPM. DISCUSSION: In anatomical studies, different preparation techniques seem to be the main reason for diverging results.
Can deepfakes be created by novice users?
Creators: name: Mehta, Pulak
name: Jagatap, Gauri
name: Gallagher, Kevin
name: Timmerman, Brian
name: Deb, Progga
name: Garg, Siddharth
name: Greenstadt, Rachel
name: Dolan-Gavitt, Brendan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: Artificial Intelligence (cs.AI)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Recent advancements in machine learning and computer vision have led to the proliferation of Deepfakes. As technology democratizes over time, there is an increasing fear that novice users can create Deepfakes, to discredit others and undermine public discourse. In this paper, we conduct user studies to understand whether participants with advanced computer skills and varying levels of computer science expertise can create Deepfakes of a person saying a target statement using limited media files. We conduct two studies; in the first study (n = 39) participants try creating a target Deepfake in a constrained time frame using any tool they desire. In the second study (n = 29) participants use pre-specified deep learning-based tools to create the same Deepfake. We find that for the first study, 23.1% of the participants successfully created complete Deepfakes with audio and video, whereas, for the second user study, 58.6% of the participants were successful in stitching target speech to the target video. We further use Deepfake detection software tools as well as human examiner-based analysis, to classify the successfully generated Deepfake outputs as fake, suspicious, or real. The software detector classified 80% of the Deepfakes as fake, whereas the human examiners classified 100% of the videos as fake. We conclude that creating Deepfakes is a simple enough task for a novice user given adequate tools and time; however, the resulting Deepfakes are not sufficiently real-looking and are unable to completely fool detection software as well as human examiners
On the approximability and exact algorithms for vector domination and related problems in graphs
Creators: name: Cicalese, Ferdinando
name: Milanic, Martin
name: Vaccaro, Ugo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Data Structures and Algorithms (cs.DS)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: F.2.2; G.2.2
subject: 68Q17, 68Q25, 68W25

description: We consider two graph optimization problems called vector domination and total vector domination. In vector domination one seeks a small subset S of vertices of a graph such that any vertex outside S has a prescribed number of neighbors in S. In total vector domination, the requirement is extended to all vertices of the graph. We prove that these problems (and several variants thereof) cannot be approximated to within a factor of clnn, where c is a suitable constant and n is the number of the vertices, unless P = NP. We also show that two natural greedy strategies have approximation factors ln D+O(1), where D is the maximum degree of the input graph. We also provide exact polynomial time algorithms for several classes of graphs. Our results extend, improve, and unify several results previously known in the literature.
description: In the version published in DAM, weaker lower bounds for vector domination and total vector domination were stated. Being these problems generalization of domination and total domination, the lower bounds of 0.2267 ln n and (1-epsilon) ln n clearly hold for both problems, unless P = NP or NP \subseteq DTIME(n^{O(log log n)}), respectively. The claims are corrected in the present version
Mn(pbdo)2Cl2/MCM-41 as a green catalyst in multi-component syntheses of some heterocycles
Creators: name: Mommahed Heravi, Majid
name: Daraie, Mansoureh
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: Mn(pbdo)2Cl2/MCM-41 as a solid acid catalyst was used as an efficient, green, reusable catalyst for an improved and rapid one-pot multi-component reaction in the synthesis of bis-(4-hydroxycoumarin), bis(indolyl)methane, and 4H-benzo[b]pyran derivatives.
Hierarchical clustering of observations and features in high-dimensional data
Creators: name: Zhang, Hongyang (Fred)
Publisher: name: University of British Columbia
Year: 2017

description: In this thesis, we present new developments of hierarchical clustering in high-dimensional data. We consider different use cases of hierarchical clustering, namely, clustering observations for exploratory analysis and clustering high-dimensional features for adaptive feature grouping and ensembling. We first focus on the clustering of observations. In high-dimensional data, the existence of potential noise features and outliers poses unique challenges to the existing hierarchical clustering techniques. We propose the Robust Sparse Hierarchical Clustering (RSHC) and the Multi-rank Sparse Hierarchical Clustering (MrSHC) to address these challenges. We show that via robust feature selection techniques, both RSHC and MrSHC can handle the potential existence of noise features and outliers in high-dimensional data and result in better clustering accuracy and interpretation comparing to the existing hierarchical clustering methods. We then consider clustering of features in high-dimensional data. We propose a new hierarchical clustering technique to adaptively divide the large number of features into subgroups called Regression Phalanxes. Features in the same Regression Phalanx work well together as predictors in a pre-defined regression model. Then models built on different Regression Phalanxes are considered for further ensembling. We show that the ensemble of Regression Phalanxes resulting from the hierarchical clustering produces further gains in prediction accuracy when applied to an effective method like Lasso or Random Forests.
Graph-based visual analytics for cyber threat intelligence
Creators: name: Böhm, Fabian
name: Menges, Florian
name: Pernul, Günther
Publisher: name: Universität Regensburg
Year: 2018
Subjects: subject: Cyber Threat Intelligence Visual Analytics Usable Cybersecurity STIX
subject: 004 Informatik

description: The ever-increasing amount of major security incidents has led to an emerging interest in cooperative approaches to encounter cyber threats. To enable cooperation in detecting and preventing attacks it is an inevitable necessity to have structured and standardized formats to describe an incident. Corresponding formats are complex and of an extensive nature as they are often designed for automated processing and exchange. These characteristics hamper the readability and, therefore, prevent humans from understanding the documented incident. This is a major problem since the success and effectiveness of any security measure rely heavily on the contribution of security experts.
Épilexie: A digital therapeutic approach for treating intractable epilepsy via Amenable Neurostimulation
Creators: name: Bangroo, Ishan Shivansh
name: Tahzeen, Samia
Publisher: name: arXiv
Year: 2023
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Epilepsy is a neurological illness that is characterised by continuous spasms of shaking, sometimes known as convulsions. Although there are effective treatments for epilepsy, such as drugs and surgery, there is still a group of individuals who have intractable epilepsy that fails to respond to standard methods. Intractable epilepsy is a severe neurological illness that ripples across the globe and impacts millions of individuals. It is extremely difficult to control intractable epilepsy, which is defined as the lack of response to two or more standard antiepileptic medication treatments. In recent years, the use of programmable electrical stimulation of the brain has shown promise as a digital treatment strategy for lowering seizure frequency in individuals with intractable epilepsy. In this research, the use of Amenable Neurostimulation (ANS) as part of a digital treatment strategy to intractable epilepsy is investigated. When applied to the brain, ANS uses a closed-loop system to selectively stimulate neurons in the affected areas, therefore lowering the frequency of seizures. In addition, the report describes the design and execution of a pilot research employing ANS to treat intractable epilepsy, including patient selection criteria, device settings, and outcome measures. The findings of this pilot research point to the possibility that ANS might be a realistic and successful therapy option for people afflicted with intractable epilepsy. This paper demonstrated the prospects of digital medicines in treating complicated neurological illnesses and recommends future routes for research and development in this field.
description: 8 pages,3 figures,3 tables
Synthese und Charakterisierung von Cs4Ga6Q11 (Q = S, Se) – Neue Chalkogenogallate mit außergewöhnlichen polymeren Anionen = Synthesis and Characterization of Cs4Ga6Q11 (Q=S, Se): Chalcogenometalates with Exotic Polymeric Anions
Creators: name: Friedrich, Daniel
name: Greim, D.
name: Schlosser, Marc
name: Siegel, R.
name: Senker, Jürgen
name: Pfitzner, Arno
Publisher: name: Universität Regensburg
Year: 2018
Subjects: subject: 540 Chemie

description: in: Angew. Chem. Int. Ed.: https://doi.org/10.1002/anie.201805239
A first search of excited states double beta and double electron capture decays of Pd110 and Pd102
Creators: name: Lehnert, Bjoern
name: Zuber, Kai
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A search for double beta decays of the palladium isotopes 110Pd and 102Pd into excited states of their daughters was performed and first half-life limits for the 2νββ and 0νββ decays into first excited 0+ and 2+ states of 5.89e19 yr and 4.40e19 yr (95% CL) for the 110Pd decay were obtained. The half-life limits for the corresponding double electron capture transition of 102Pd are 7.64e18 yr and 2.68e18 yr (95% CL) respectively. These are the first measurements for 102Pd.
description: Updated to published version. Refined analysis and minor text changes. Half-life limits changed
The Law-Making Function of the UN Committee on the Rights of Persons with Disabilities
Creators: name: Uerpmann-Wittzack, Robert
Publisher: name: Universität Regensburg
Year: 2018
Subjects: subject: Convention on the Rights of Persons with Disabilities, CRPD, human rights obligations, sources of law
subject: 340 Recht

description: Evolution through subsequent practice is particularly marked in international human rights law, where international human rights bodies produce abundant practice. Here, the question arises as to whether the practice of these bodies alone suffices to determine the content of international human rights obligations or whether organ practice must be backed up by state practice or forms of implicit state consent. This question shall be analysed with regard to the UN Convention on the Rights of Persons with Disabilities (CRPD) of 13 December 2006 and the Committee on the Rights of Persons with Disabilities established under 34 CRPD. Although the Convention is only ten years old, its Committee has already produced quite an important corpus of practice, and it has shown its willingness to construe the Convention in a rigorous way which makes important parts of current domestic state practice with regard to persons with disabilities illegal.
Kernels for products of L-functions
Creators: name: Diamantis, Nikolaos
name: O'Sullivan, Cormac
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F11, 11F67

description: The Rankin-Cohen bracket of two Eisenstein series provides a kernel yielding products of the periods of Hecke eigenforms at critical values. Extending this idea leads to a new type of Eisenstein series built with a double sum. We develop the properties of these series and their non-holomorphic analogs and show their connection to values of L-functions outside the critical strip.
description: 27 pages. In version 3: a formula in section 7 is corrected and the theorem in section 2.3 is stated more clearly. Further small improvements
Do judges hate speculations?
Creators: name: Hornuf, Lars
name: Klöhn, Lars
Publisher: name: Universität Regensburg
Year: 2019
Subjects: subject: Speculator bias; Judges; Experimental law and economics
subject: 330 Wirtschaft

description: Historically, people have often expressed negative feelings toward speculators, a sentiment that might have even been reinforced since the latest financial crisis, during which taxpayer money was warranted or spent to bail out reckless investors. In this paper, we conjecture that judges may also have anti-speculator sentiment, which might affect their professional decision making. We asked 123 professional lawyers and 247 law students in Germany this question, and they clearly predicted that judges would have an anti-speculator bias. However, in an actual behavioral study, 185 judges did not exhibit such bias. In another sample of 170 professional lawyers, we found weak support for an anti-speculator bias. This evidence suggests that an independent audience may actually perceive unbiased judgments as biased. While the literature usually suggests that a communication problem exists between lawyers and non-lawyers (i.e. between judges and the general public), we find that this problem can also exist within the legal community.
Preserving Data Confidentiality in Association Rule Mining Using Data Share Allocator Algorithm
Creators: name: Dhinakaran, D.
name: Prathap, P. M. Joe
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: These days, investigations of information are becoming essential for various associations all over the globe. By and large, different associations need to perform information examinations on their joined data sets. Privacy and security have become a relentless concern wherein business experts do not desire to contribute their classified transaction data. Therefore, there is a requirement to build a proficient methodology that can process the broad mixture of data and convert those data into meaningful knowledge for the user without forfeiting the security and privacy of individuals crude information. We devised two unique protocols for frequent mining itemsets in horizontally partitioned datasets while maintaining privacy. In such a scenario, data possessors outwork mining tasks on their multiparty data by preserving privacy. The proposed framework model encompasses two or more data possessors who encrypt their information and dispense their encrypted data to two or more clouds by a data share allocator algorithm. This methodology protects the data possessor raw data from other data possessors and the other clouds. To guarantee data privacy, we plan a proficient enhanced homomorphic encryption conspire. Our approach ensures privacy during communication and accumulation of data and guarantees no information or data adversity and no incidental consequences for data utility.
On Balanced Separators, Treewidth, and Cycle Rank
Creators: name: Gruber, Hermann
Publisher: name: arXiv
Year: 2010
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 05C40, 05C35

description: We investigate relations between different width parameters of graphs, in particular balanced separator number, treewidth, and cycle rank. Our main result states that a graph with balanced separator number k has treewidth at least k but cycle rank at most k(1 + log (n/k)), thus refining the previously known bounds, as stated by Robertson and Seymour (1986) and by Bodlaender et al. (1995). Furthermore, we show that the improved bounds are best possible.
description: Version 2: revised version, 8 pages
Climate change impacts on a eutrophying lake : Cultus Lake, British Columbia, Canada
Creators: name: Sumka, Mark Gregory
Publisher: name: University of British Columbia
Year: 2017

description: This study characterizes the thermal dynamics of Cultus Lake, British Columbia, Canada, and assesses the impacts of climate change on critical habitat for species-at-risk Sockeye Salmon (Onchorynchus nerka) and Cultus Lake Pygmy Sculpin (Cottus aleuticus). Historical field data spanning 1920s–1930s, 2001–2003, and 2009–2016 were analyzed and a one-dimensional hydrodynamic model (General Lake Model) was calibrated using field data collected in 2016, and validated using field data from 2001–2003 and 2009–2016. The thermal structure of the lake was simulated to 2100 using outputs from the downscaled Canadian Regional Climate Model (CanRCM4) for two climate change scenarios (RCP4.5, moderate emissions scenario; and RCP8.5, extreme emissions scenario). Historically (1923–2016), the total lake heat content increased at a rate of 0.80 MJ m⁻² a⁻¹ and is projected to warm by 2.0 MJ m⁻² a⁻¹ (4.2 MJ m⁻² a⁻¹) for RCP4.5 (RCP8.5). Historically, the Schmidt stability increased by 2.2 J m⁻² a⁻¹ and is projected to increase by 2.6 J m⁻² a⁻¹ (6.5 J m⁻² a⁻¹) for RCP 4.5 (RCP8.5). The duration of stratification has historically been increasing at a rate of 0.18 d a⁻¹ and is projected to increase by 0.18 d a⁻¹ (0.50 d a⁻¹) for RCP4.5 (RCP8.5). The onset of stratification is now two weeks earlier than the 1920s–1930s and currently occurs around 23 March while the breakup date has not changed and occurs around 15 December. However, it is predicted that there will be no change in the date of onset of stratification while breakup will be delayed to 12 January (25 January) for RCP4.5 (RCP8.5). Lake surface temperature and outflow temperature is most important for salmon survival in August through November corresponding with the salmon run. Historical change in mean monthly temperature ranged from 0 °C a⁻¹ in November to a maximum of 0.016 °C a⁻¹ in August. This is predicted to increase to 0.016 °C a⁻¹ (0.046 °C a⁻¹) in November and 0.031 °C a⁻¹ (0.069 °C a⁻¹) in August for RCP4.5 (RCP8.5). Projections indicate fundamental changes to the thermal characteristics of Cultus Lake, which may further degrade water quality, particularly in conjunction with ongoing eutrophication, eliciting fundamental changes in the structural and functional attributes of critical habitat for species-at-risk.
Revealing the Binarity of HD 36030 -- One of the Hottest Flare Stars
Creators: name: Maryeva, Olga
name: Németh, Péter
name: Karpov, Sergey
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Kepler and TESS space missions significantly expanded our knowledge of what types of stars display flaring activity by recording a vast amount of super-flares from solar-like stars, as well as detecting flares from hotter stars of A-F spectral types. Currently, we know that flaring occurs in the stars as hot as B-type ones. However, the structures of atmospheres of hot B-A stars crucially differ from the ones of late types, and thus the occurrence of flaring in B-A type stars requires some extension of our theoretical views of flare formation and therefore a detailed study of individual objects. Here we present the results of our spectral and photometric study of HD 36030, which is a B9 V star with flares detected by the TESS satellite. The spectra we acquired suggest that the star is in a binary system with a low-mass secondary component, but the light curve lacks any signs of periodic variability related to orbital motion or surface magnetic fields. Because of that, we argue that the flares originate due to magnetic interaction between the components of the system.
description: 16 pages, 10 figures, 3 tables
Foliation of the Kottler-Schwarzschild-De Sitter Spacetime by Flat Spacelike Hypersurfaces
Creators: name: Siddiqui, Azad A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: There exist Kruskal like coordinates for the Reissner-Nordstrom (RN) black hole spacetime which are regular at coordinate singularities. Non existence of such coordinates for the extreme RN black hole spacetime has already been shown. Also the Carter coordinates available for the extreme case are not manifestly regular at the coordinate singularity, therefore, a numerical procedure was developed to obtain free fall geodesics and flat foliation for the extreme RN black hole spacetime. The Kottler-Schwarzschild-de Sitter (KSSdS) spacetime geometry is similar to the RN geometry in the sense that, like the RN case, there exist non-singular coordinates when there are two distinct coordinate singularities. There are no manifestly regular coordinates for the extreme KSSdS case. In this paper foliation of all the cases of the KSSdS spacetime by flat spacelike hypersurfaces is obtained by introducing a non-singular time coordinate.
description: 12 pages, 4 figures
title: Orthotic management of the rheumatoid hand
title: Prise en charge orthétique de la main rhumatoïde.
Creators: name: Balkhadir, Hind
Publisher: name: Revue Marocaine de Rhumatologie (RMR)
Year: 2021
Subjects: Polyarthrite rhumatoïd; Main rhumatoïde; Orthèse.

description: Rheumatoid arthritis usually affects the hand. It may concern all anatomical structures with varying degrees of severity, which can cause deformations and loss of function, with major disability. Hand orthoses are one of the therapeutic options, they are based on the knowledge of the complexity of deformities of the hand. Several types of orthoses can be prescribed according to the indications: rest orthoses, corrective orthoses, or functional orthoses.
description: L’atteinte des mains au cours la polyarthrite rhumatoïde est quasi-systématique. Elle peut concerner toutes les structures anatomiques avec des degrés de sévérité variables, pouvant engendrer des déformations et des pertes de fonction, parfois sources d’un handicap majeur. Les orthèses de la main font partie des moyens thérapeutiques, elles sont fondées sur la connaissance de la complexité des déformations de la main. Plusieurs types d’orthèses peuvent être prescrits selon les indications posées : orthèses de repos, orthèses de correction ou de fonction.