cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Characterization of Lipschitz Normally Embedded complex curves
Creators: name: Costa, André
name: Grandjean, Vincent
name: Michalska, Maria
Publisher: name: arXiv
Year: 2023
Subjects: subject: Algebraic Geometry (math.AG)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 14H50, 32B10, 51F99

description: The main result of the paper states that a connected complex affine algebraic curve is Lipschitz normally embedded (shortened to LNE afterwards) in $\mathbb{C}^n$ if and only if its germ at any singular point is a finite union of non-singular complex curve germs which are pairwise transverse, and its projective closure is in general position with the hyperplane at infinity. To this aim, we completely characterize complex analytic curves of a compact complex manifold which are LNE (regardless of the given Riemannian structure), and therefore we can relate when a projective algebraic curve is LNE in $\mathbb{CP}^n$ with the property of its general affine traces being LNE in $\mathbb{C}^n$. This allows us to deduce that Lipschitz classification of LNE curves is topological. We describe a complete invariant for the (outer and inner) Lipschitz equivalence of affine LNE curves and show that most such curves cannot be bi-Lipschitz homeomorphic to a plane one.
description: The article will be pubslished in the Bulletin des Sciences Math\'ematiques
title: Streamlining ENT Hospital Emergencies
Creators: name: Lloyd, Erin
name: Evans, Louise
name: Arya, Arvind
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Introduction: The ENT emergency clinic grants rapid access for patients presenting to the Emergency Department. The clinic is Senior House Officer (SHO) led and aims to relieve consultant clinic numbers, manage patient’s within three appointments and prevent unnecessary out of hour referrals.[for full text, please go to the a.m. URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
Bayesian Inference of the Multi-Period Optimal Portfolio for an Exponential Utility
Creators: name: Bauder, David
name: Bodnar, Taras
name: Parolya, Nestor
name: Schmid, Wolfgang
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistics Theory (math.ST)
subject: Portfolio Management (q-fin.PM)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Mathematics
subject: FOS: Economics and business

description: We consider the estimation of the multi-period optimal portfolio obtained by maximizing an exponential utility. Employing Jeffreys' non-informative prior and the conjugate informative prior, we derive stochastic representations for the optimal portfolio weights at each time point of portfolio reallocation. This provides a direct access not only to the posterior distribution of the portfolio weights but also to their point estimates together with uncertainties and their asymptotic distributions. Furthermore, we present the posterior predictive distribution for the investor's wealth at each time point of the investment period in terms of a stochastic representation for the future wealth realization. This in turn makes it possible to use quantile-based risk measures or to calculate the probability of default. We apply the suggested Bayesian approach to assess the uncertainty in the multi-period optimal portfolio by considering assets from the FTSE 100 in the weeks after the British referendum to leave the European Union. The behaviour of the novel portfolio estimation method in a precarious market situation is illustrated by calculating the predictive wealth, the risk associated with the holding portfolio, and the default probability in each period.
description: 38 pages, 5 figures
Adapting the Tesseract Open-Source OCR Engine for Tamil and Sinhala Legacy Fonts and Creating a Parallel Corpus for Tamil-Sinhala-English
Creators: name: Vasantharajan, Charangan
name: Tharmalingam, Laksika
name: Thayasivam, Uthayasanker
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Most low-resource languages do not have the necessary resources to create even a substantial monolingual corpus. These languages may often be found in government proceedings but mainly in Portable Document Format (PDF) that contains legacy fonts. Extracting text from these documents to create a monolingual corpus is challenging due to legacy font usage and printer-friendly encoding, which are not optimized for text extraction. Therefore, we propose a simple, automatic, and novel idea that can scale for Tamil, Sinhala, English languages, and many documents along with parallel corpora. Since Tamil and Sinhala are Low-Resource Languages, we improved the performance of Tesseract by employing LSTM-based training on more than 20 legacy fonts to recognize printed characters in these languages. Especially, our model detects code-mixed text, numbers, and special characters from the printed document. It is shown that this approach can reduce the character-level error rate of Tesseract from 6.03 to 2.61 for Tamil (-3.42% relative change) and 7.61 to 4.74 for Sinhala (-2.87% relative change), as well as the word-level error rate from 39.68 to 20.61 for Tamil (-19.07% relative change) and 35.04 to 26.58 for Sinhala (-8.46% relative change) on the test set. Also, our newly created parallel corpus consists of 185.4k, 168.9k, and 181.04k sentences and 2.11M, 2.22M, and 2.33M Words in Tamil, Sinhala, and English respectively. This study shows that fine-tuning Tesseract models on multiple new fonts help to understand the texts and enhances the performance of the OCR. We made newly trained models and the source code for fine-tuning Tesseract, freely available.
description: 7 Pages
title: Der Hauttumor (ICD10:C44) als häufigsten Malignom des älteren Patienten – Sind wir dieser Herausforderung des demografischen Wandels gewachsen?
Creators: name: Motsch, Christiane
name: Ulrich, Jens
name: Robra, Bernt-Peter
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Nach ambulanter Schätzung wird aktuell die Diagnose ICD10:C44 (Basalzell-/Plattenepithelkarzinome der Haut) bei ca. 240.000 Deutschen pro Jahr gestellt. Die 80%-Steigerung in den vergangenen 7 Jahren ist eine Herausforderung für Dermato- und HNO-Chirurgen gleichermaßen.[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
title: Die Anwenderfreundlichkeit der Ulmer elektronischen Patientenakte (ePA) im Vergleich zu SAP/i.s.h.med
Creators: name: Reichert, Michael
name: Grosse, Sophia
name: Sommer, Fabian
name: Tewes, Siegfried
name: Hoffmann, Thomas
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Im Krankenhausalltag kommen eine Vielzahl von verschiedenen Computerprogrammen zur Anwendung. Dabei steht die Anwenderfreundlichkeit der Software oft nicht im Mittelpunkt der Aufmerksamkeit. Ziel der Studie war es die Nutzerfreundlichkeit der in enger Zusammenarbeit von IT und HNO Ärzten[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
Adaptive friends-of-friends algorithm for identifying gravitationally bound cosmological structures
Creators: name: Gupta, Prateek
name: Paul, Surajit
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Universe at the present epoch is found to be a network of matter over-dense and under-dense regions. To date, this picture of the Universe is best revealed through cosmological large-volume simulations and large-scale galaxy redshift surveys, in which, the most important step is the appropriate identification of structures. So far, these structures are identified using various group finding codes, mostly based on the friends-of-friends (FoF) or spherical over-density (SO) algorithms. Although, the main purpose is to identify gravitationally bound structures, surprisingly, the mass information has hardly been used effectively by these codes. Moreover, the methods used so far either constrain the over-density or use the real unstructured geometry only. Even though these are key factors in the accurate determination of structures-mass information, hardly any attempt has been made as yet to consider these important parameters together while formulating the grouping algorithms. In this paper, we present our proposed algorithm which takes care of all the above-mentioned relevant features and ensures the bound structures by means of physical quantities, mainly mass and the total energy information. We introduced a novel concept of physically relevant arm-length for each element depending on their individual gravity leading to a distinct linking length for each unique pair of elements. This proposed algorithm is thus fundamentally new that, not only able to catch the gravitationally bound, real unstructured geometry, it does identify it roughly within a predefined physically motivated density threshold. Such a thing could not be simultaneously achieved before by any of the usual FoF or SO-based methods. We also demonstrate the unique ability of the code in the appropriate identification of structures, both from large volume cosmological simulations as well as from galaxy redshift surveys.
description: 28 pages, 13 figures, published in the Physical Review D
Testing for Independence of Large Dimensional Vectors
Creators: name: Bodnar, Taras
name: Dette, Holger
name: Parolya, Nestor
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistics Theory (math.ST)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: In this paper new tests for the independence of two high-dimensional vectors are investigated. We consider the case where the dimension of the vectors increases with the sample size and propose multivariate analysis of variance-type statistics for the hypothesis of a block diagonal covariance matrix. The asymptotic properties of the new test statistics are investigated under the null hypothesis and the alternative hypothesis using random matrix theory. For this purpose we study the weak convergence of linear spectral statistics of central and (conditionally) non-central Fisher matrices. In particular, a central limit theorem for linear spectral statistics of large dimensional (conditionally) non-central Fisher matrices is derived which is then used to analyse the power of the tests under the alternative. The theoretical results are illustrated by means of a simulation study where we also compare the new tests with several alternative, in particular with the commonly used corrected likelihood ratio test. It is demonstrated that the latter test does not keep its nominal level, if the dimension of one sub-vector is relatively small compared to the dimension of the other sub-vector. On the other hand the tests proposed in this paper provide a reasonable approximation of the nominal level in such situations. Moreover, we observe that one of the proposed tests is most powerful under a variety of correlation scenarios.
description: 30 pages main, 21 pages supplement, 14 Figures (accepted for publication in Annals of Statistics)
Balloon observations of bremsstrahlung X-rays from Cold Lake, Alberta
Creators: name: Varga, Ludovit
Publisher: name: University of Calgary
Year: 1986
Subjects: subject: QC 972 S6 V35 1987
subject: Auroras - Spectra
subject: Monte Carlo method
subject: Bremsstrahlung
subject: X-rays

description: Bibliography: p. 199-214.
The cost of noise: stochastic punishment falls short of sustaining cooperation in social dilemma experiments
Creators: name: Salahshour, Mohammad
name: Oberhauser, Vincent
name: Smerlak, Matteo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Identifying mechanisms able to sustain costly cooperation among self-interested agents is a central problem across social and biological sciences. One possible solution is peer punishment: when agents have an opportunity to sanction defectors, classical behavioral experiments suggest that cooperation can take root. Overlooked from standard experimental designs, however, is the fact that real-world human punishment -- the administration of justice -- is intrinsically noisy. Here we show that stochastic punishment falls short of sustaining cooperation in the repeated public good game. As punishment noise increases, we find that contributions decrease and punishment efforts intensify, resulting in a $45\%$ drop in gains compared to a noiseless control. Moreover, we observe that uncertainty causes a rise in antisocial punishment, a mutually harmful behavior previously associated with societies with a weak rule of law. Our approach brings to light challenges to cooperation that cannot be explained by economic rationality and strengthens the case for further investigations of the effect of noise -- and not just bias -- on human behavior.
description: 16 pages, 5 figures, 2 tables + SI in source files
title: Wissenschaftlicher Stellenwert von Posterpräsentationen auf der Jahrestagung der DGHNO
Creators: name: Sutter, Valentina
name: Werner, Jochen
name: Güldner, Christian
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Ein wesentlicher Bestandteil des Tagungsprogrammes der Jahrestagung der DGHNO stellen die Visualisierung und Präsentation von Postern dar. In Hinblick auf die effiziente Nutzung der Zeit des Kongresses stellt sich die Frage des wissenschaftlichen Nutzens und Output aus den Posterbeiträgen.[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
Tests for the weights of the global minimum variance portfolio in a high-dimensional setting
Creators: name: Bodnar, Taras
name: Dmytriv, Solomiia
name: Parolya, Nestor
name: Schmid, Wolfgang
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Statistics Theory (math.ST)
subject: FOS: Economics and business
subject: FOS: Mathematics

description: In this study, we construct two tests for the weights of the global minimum variance portfolio (GMVP) in a high-dimensional setting, namely, when the number of assets $p$ depends on the sample size $n$ such that $\frac{p}{n}\to c \in (0,1)$ as $n$ tends to infinity. In the case of a singular covariance matrix with rank equal to $q$ we assume that $q/n\to \tilde{c}\in(0, 1)$ as $n\to\infty$. The considered tests are based on the sample estimator and on the shrinkage estimator of the GMVP weights. We derive the asymptotic distributions of the test statistics under the null and alternative hypotheses. Moreover, we provide a simulation study where the power functions and the receiver operating characteristic curves of the proposed tests are compared with other existing approaches. We observe that the test based on the shrinkage estimator performs well even for values of $c$ close to one.
description: 16 pages, 10 figures (final version, accepted for publication in IEEE Transactions of Signal Processing)
PLQ-Sim: A Computational Tool for Simulating Photoluminescence Quenching Dynamics in Organic Donor/Acceptor Blends
Creators: name: Benatto, Leandro
name: Mesquita, Omar
name: Roman, Lucimara S.
name: Capaz, Rodrigo B.
name: Candiotto, Graziâni
name: Koehler, Marlus
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Photoluminescence Quenching Simulator (PLQ-Sim) is a user-friendly software to study the photoexcited state dynamics at the interface between two organic semiconductors forming a blend: an electron donor (D), and an electron acceptor (A). Its main function is to provide substantial information on the photophysical processes relevant to organic photovoltaic and photothermal devices, such as charge transfer state formation and subsequent free charge generation or exciton recombination. From input parameters provided by the user, the program calculates the transfer rates of the D/A blend and employs a kinetic model that provides the photoluminescence quenching efficiency for initial excitation in the donor or acceptor. When calculating the rates, the user can choose to use disorder parameters to better describe the system. In addition, the program was developed to address energy transfer phenomena that are commonly present in organic blends. The time evolution of state populations is also calculated providing relevant information for the user. In this article, we present the theory behind the kinetic model, along with suggestions for methods to obtain the input parameters. A detailed demonstration of the program, its applicability, and an analysis of the outputs are also presented. PLQ-Sim is license free software that can be run via dedicated webserver nanocalc.org or downloading the program executables (for Unix, Windows, and macOS) from the PLQ-Sim repository on GitHub.
description: 13 pages, 11 figures
title: Zertifizierung einer Universitäts- Hals-, Nasen-, Ohrenklinik
Creators: name: Teschner, Magnus
name: Voigt, Henning
name: Pettig, Sylvia
name: Krause, Angelika
name: Lenarz, Thomas
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Unter einem Qualitätsmanagement versteht man organisatorische Maßnahmen, welche einer Prozessorientierung sowie einer Prozessoptimierung dienen. Hierdurch sollen positive Effekte auf die erstellten Produkte erreicht werden.
    Angesichts einer zunehmenden Entwicklung, der nach[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
Quantum Computation Using Action Variables
Creators: name: Zhang, Yong
name: Wu, Konglong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Recently, Lloyd and Montangero have made a brief research proposal on universal quantum computation in integrable systems. The main idea is to encode qubits into quantum action variables and build up quantum gates by the method of resonant control. We study this proposal to argue quantum computation using action variables as fault-tolerant quantum computation, whose fault-tolerance is guaranteed by the quantum KAM theorem. Besides, we view the Birkhoff norm form as a mathematical framework of the extended harmonic oscillator quantum computation.
description: 22 pages, 1 figure
Reproducible research using biomodels
Creators: name: Mendes, Pedro
Publisher: name: arXiv
Year: 2018
Subjects: subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences

description: Like other types of computational research, modeling and simulation of biological processes (biomodels) is still largely communicated without sufficient detail to allow independent reproduction of results. But reproducibility in this area of research could easily be achieved by making use of existing resources, such as supplying models in standard formats and depositing code, models, and results in public repositories.
Three-dimensional bulk band dispersion in polar BiTeI with giant Rashba-type spin splitting
Creators: name: Sakano, M.
name: Miyawaki, J.
name: Chainani, A.
name: Takata, Y.
name: Sonobe, T.
name: Shimojima, T.
name: Oura, M.
name: Shin, S.
name: Bahramy, M. S.
name: Arita, R.
name: Nagaosa, N.
name: Murakawa, H.
name: Kaneko, Y.
name: Tokura, Y.
name: Ishizaka, K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In layered polar semiconductor BiTeI, giant Rashba-type spin-split band dispersions show up due to the crystal structure asymmetry and the strong spin-orbit interaction. Here we investigate the 3-dimensional (3D) bulk band structures of BiTeI using the bulk-sensitive $hν$-dependent soft x-ray angle resolved photoemission spectroscopy (SX-ARPES). The obtained band structure is shown to be well reproducible by the first-principles calculations, with huge spin splittings of ${\sim}300$ meV at the conduction-band-minimum and valence-band-maximum located in the $k_z=π/c$ plane. It provides the first direct experimental evidence of the 3D Rashba-type spin splitting in a bulk compound.
description: 9 pages, 4 figures
Bayesian mean-variance analysis: Optimal portfolio selection under parameter uncertainty
Creators: name: Bauder, David
name: Bodnar, Taras
name: Parolya, Nestor
name: Schmid, Wolfgang
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Portfolio Management (q-fin.PM)
subject: FOS: Economics and business

description: The paper solves the problem of optimal portfolio choice when the parameters of the asset returns distribution, like the mean vector and the covariance matrix are unknown and have to be estimated by using historical data of the asset returns. The new approach employs the Bayesian posterior predictive distribution which is the distribution of the future realization of the asset returns given the observable sample. The parameters of the posterior predictive distributions are functions of the observed data values and, consequently, the solution of the optimization problem is expressed in terms of data only and does not depend on unknown quantities. In contrast, the optimization problem of the traditional approach is based on unknown quantities which are estimated in the second step leading to a suboptimal solution. We also derive a very useful stochastic representation of the posterior predictive distribution whose application leads not only to the solution of the considered optimization problem, but provides the posterior predictive distribution of the optimal portfolio return used to construct a prediction interval. A Bayesian efficient frontier, a set of optimal portfolios obtained by employing the posterior predictive distribution, is constructed as well. Theoretically and using real data we show that the Bayesian efficient frontier outperforms the sample efficient frontier, a common estimator of the set of optimal portfolios known to be overoptimistic.
description: 21 pages, 5 figures
FRET$-$Calc: A Free Software and Web Server for Förster Resonance Energy Transfer Calculation
Creators: name: Benatto, Leandro
name: Mesquita, Omar
name: Rosa, João L. B.
name: Roman, Lucimara S.
name: Koehler, Marlus
name: Capaz, Rodrigo B.
name: Candiotto, Graziâni
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Förster Resonance Energy Transfer Calculator (FRET$-$Calc) is a program and web server that analyzes molar extinction coefficient of the acceptor, emission spectrum of the donor, and the refractive index spectrum of the donor/acceptor blend. Its main function is to obtain important parameters of the FRET process from experimental data, such as: (i) effective refractive index, (ii) overlap integral, (iii) Förster radius, (iii) FRET efficiency and (iv) FRET rate. FRET$-$Calc is license free software that can be run via dedicated web server (nanocalc.org) or downloading the program executables (for Unix, Windows, and macOS) from the FRET$-$Calc repository on GitHub. The program features a user$-$friendly interface, making it suitable for materials research and teaching purposes. In addition, the program is optimized to run on normal computers and is lightweight. An example will be given with the step by step of its use and results obtained.
description: 7 pages, 6 figures
Mean-Variance Efficiency of Optimal Power and Logarithmic Utility Portfolios
Creators: name: Bodnar, Taras
name: Ivasiuk, Dmytro
name: Parolya, Nestor
name: Schmid, Wofgang
Publisher: name: arXiv
Year: 2018
Subjects: subject: Portfolio Management (q-fin.PM)
subject: Mathematical Finance (q-fin.MF)
subject: FOS: Economics and business

description: We derive new results related to the portfolio choice problem for power and logarithmic utilities. Assuming that the portfolio returns follow an approximate log-normal distribution, the closed-form expressions of the optimal portfolio weights are obtained for both utility functions. Moreover, we prove that both optimal portfolios belong to the set of mean-variance feasible portfolios and establish necessary and sufficient conditions such that they are mean-variance efficient. Furthermore, an application to the stock market is presented and the behavior of the optimal portfolio is discussed for different values of the relative risk aversion coefficient. It turns out that the assumption of log-normality does not seem to be a strong restriction.
description: 31 pages, 4 figures, UPDATE: the log-normal approximation is now appropriately motivated analytically
Source coding with escort distributions and Renyi entropy bounds
Creators: name: Bercher, J. -F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We discuss the interest of escort distributions and Rényi entropy in the context of source coding. We first recall a source coding theorem by Campbell relating a generalized measure of length to the Rényi-Tsallis entropy. We show that the associated optimal codes can be obtained using considerations on escort-distributions. We propose a new family of measure of length involving escort-distributions and we show that these generalized lengths are also bounded below by the Rényi entropy. Furthermore, we obtain that the standard Shannon codes lengths are optimum for the new generalized lengths measures, whatever the entropic index. Finally, we show that there exists in this setting an interplay between standard and escort distributions.
title: Die infizierte, extraorale Zahnfistel: Hohe Rate an Fehldiagnosen trotz bekanntem Problem
Creators: name: Bast, Florian
name: Chadha, Priyanka
name: Shelley, James
name: Collier, Jonathan
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: Dental-Infektionen, Speicheldrüsenverletzungen, Neubildungen sowie Fehlbildungen können intra- und extraorale Fisteln sowie Halsfisteln und Zysten hervorrufen. Bisherige Veröffentlichungen zum Thema extraorale Zahnfisteln kommen fast alle zum gleichen, ernüchternden [zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
Separation of sodium cyanide using difference in solubility: measurement and estimation of solubility of sodium cyanide and sodium carbonate in water + ethanol binary solvent
Creators: name: Kwak, Hye-Song
name: Ri, Song-Ho
name: Pak, Se-Ok
name: Ri, Jong-Hyok
name: Jong, Sung-Ho
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Hematology
subject: Plant Biology

description: Separation of NaCN from the mixture of NaCN and Na2CO3 (which is mainly produced by urea and sodium carbonate method) was studied. The soluble possibility of NaCN and Na2CO3 in different mixed solvents was theoretically investigated. The experimental solubility of NaCN and Na2CO3 in water, ethanol and mixed solvent (water + ethanol) at the temperature range of 285.15K-323.15K was determined by a static method. e-NRTL model was used to estimate the experimental solubility of NaCN and Na2CO3. It is found out that optimal separation of NaCN ranges at the temperature of 318.15K below and at the ethanol mass composition of 0.7–0.8.
COVID-19 Monitoring System using Social Distancing and Face Mask Detection on Surveillance video datasets
Creators: name: Srinivasan, Sahana
name: R, Rujula Singh
name: Biradar, Ruchita R
name: SA, Revathi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In the current times, the fear and danger of COVID-19 virus still stands large. Manual monitoring of social distancing norms is impractical with a large population moving about and with insufficient task force and resources to administer them. There is a need for a lightweight, robust and 24X7 video-monitoring system that automates this process. This paper proposes a comprehensive and effective solution to perform person detection, social distancing violation detection, face detection and face mask classification using object detection, clustering and Convolution Neural Network (CNN) based binary classifier. For this, YOLOv3, Density-based spatial clustering of applications with noise (DBSCAN), Dual Shot Face Detector (DSFD) and MobileNetV2 based binary classifier have been employed on surveillance video datasets. This paper also provides a comparative study of different face detection and face mask classification models. Finally, a video dataset labelling method is proposed along with the labelled video dataset to compensate for the lack of dataset in the community and is used for evaluation of the system. The system performance is evaluated in terms of accuracy, F1 score as well as the prediction time, which has to be low for practical applicability. The system performs with an accuracy of 91.2% and F1 score of 90.79% on the labelled video dataset and has an average prediction time of 7.12 seconds for 78 frames of a video.
description: I, Rujula Singh R, would like to apologize to the research community for the confusion caused by the inconsistency in author lists between multiple versions of this paper. I take full responsibility for this error and will be more diligent in the future to ensure the accuracy and consistency of our research publications
title: Seltener Fall eines posttraumatischen prävertebralen Hämatoms
Creators: name: Bergmann, Marianne
name: Dembski, Sabrina
name: Laskawi, Rainer
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Am 21.07.2015 stellte sich eine 80-jährige Patientin in einer externen Klinik vor, nachdem sie unter Marcumartherapie im häuslichen Umfeld gestürzt war. Im Verlauf kam es dann zu einer plötzlich eintretenden Dyspnoe.     Material und Methoden: Die Patientin wurde intubiert[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
Two dimensional Dirac fermions in the presence of long-range correlated disorder
Creators: name: Fedorenko, Andrei A.
name: Carpentier, David
name: Orignac, Edmond
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We consider 2D Dirac fermions in the presence of three types of disorder: random scalar potential, random gauge potential and random mass with long-range correlations decaying as a power law. Using various methods such as the self-consistent Born approximation (SCBA), renormalization group (RG), the matrix Green function formalism and bosonisation we calculate the density of states and study the full counting statistics of fermionic transport at lower energy. The SCBA and RG show that the random correlated scalar potentials generate an algebraically small energy scale below which the density of states saturates to a constant value. For correlated random gauge potential, RG and bosonisation calculations provide consistent behavior of the density of states which diverges at zero energy in an integrable way. In the case of correlated random mass disorder the RG flow has a nontrivial infrared stable fixed point leading to a universal power-law behavior of the density of states and also to universal transport properties. In contrast to uncorrelated case the correlated scalar potential and random mass disorders give rise to deviation from the pseudodiffusive transport already to lowest order in disorder strength.
description: 17 pages, 8 figures, revtex4
Estimating a continuously varying offset between multivariate time series with application to COVID-19 in the United States
Creators: name: James, Nick
name: Menzies, Max
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: This paper introduces new methods to track the offset between two multivariate time series on a continuous basis. We then apply this framework to COVID-19 counts on a state-by-state basis in the United States to determine the progression from cases to deaths as a function of time. Across multiple approaches, we reveal an "up-down-up" pattern in the estimated offset between reported cases and deaths as the pandemic progresses. This analysis could be used to predict imminent increased load on a healthcare system and aid the allocation of additional resources in advance.
description: Final version. Minor edits since v1. Equal contribution
Equivalence of Sobolev norms involving generalized Hardy operators
Creators: name: Frank, Rupert L.
name: Merz, Konstantin
name: Siedentop, Heinz
Publisher: name: arXiv
Year: 2018
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We consider the fractional Schrödinger operator with Hardy potential and critical or subcritical coupling constant. This operator generates a natural scale of homogeneous Sobolev spaces which we compare with the ordinary homogeneous Sobolev spaces. As a byproduct, we obtain generalized and reversed Hardy inequalities for this operator. Our results extend those obtained recently for ordinary (non-fractional) Schrödinger operators and have an important application in the treatment of large relativistic atoms.
description: 21 pages; v3 contains a new appendix, which extends Theorem 1.1 to all functions in the domains of $(|p|^\alpha+a|x|^{-\alpha})^{s/2}$ and $|p|^{\alpha s/2}$, respectively
title: Quality of Life nach operativer Resektion einer Pathologie der Regio colli lateralis über einen retroaurikulären Zugangsweg
Creators: name: Breunig, Christine
name: Bloching, Marc
name: Flügel, Wolfgang
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Systematische Messungen der gesundheitsbezogenen Lebensqualität nach Parotidektomie und Operationen der Regio colli lateralis in Abhängigkeit des operativen Zugangsweges sind bisher nur in geringem Umfang erfolgt. Die in unserer Klinik neu etablierte Operationsweise über einen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
Lorenz, S. (Hrsg., 2017): Juvenal: Satiren. Saturae
Creators: name: Ullrich, Heiko
Publisher: name: Forum Classicum
Year: 2020

description: Rezension zu: Lorenz, S. (Hrsg., 2017): Juvenal: Satiren. Saturae. Lateinisch-deutsch (Sammlung Tusculum) herausgegeben, übersetzt und mit Anmerkungen versehen von Sven Lorenz, Berlin/Boston, de Gruyter, 545 S. (ISBN 978-3-11-040587-3)
description: Forum Classicum, Nr. 2 (2020): Forum Classicum
Maier, F. (2020): Die glorreichen Drei: Theseus, Herakles, Odysseus – eine phantastische Mythencollage
Creators: name: Grau, Peter
Publisher: name: Forum Classicum
Year: 2020

description: Rezension zu: Maier, F. (2020): Die glorreichen Drei: Theseus, Herakles, Odysseus – eine phantastische Mythencollage, Bad Driburg, Ovid-Verlag, 183 S. (ISBN: 978-3-938952-38-2)
description: Forum Classicum, Nr. 2 (2020): Forum Classicum
Organic Design of Massively Distributed Systems: A Complex Networks Perspective
Creators: name: Scholtes, Ingo
name: Tessone, Claudio Juan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: C.2.1; C.2.2; C.2.3; C.2.4

description: The vision of Organic Computing addresses challenges that arise in the design of future information systems that are comprised of numerous, heterogeneous, resource-constrained and error-prone components or devices. Here, the notion organic particularly highlights the idea that, in order to be manageable, such systems should exhibit self-organization, self-adaptation and self-healing characteristics similar to those of biological systems. In recent years, the principles underlying many of the interesting characteristics of natural systems have been investigated from the perspective of complex systems science, particularly using the conceptual framework of statistical physics and statistical mechanics. In this article, we review some of the interesting relations between statistical physics and networked systems and discuss applications in the engineering of organic networked computing systems with predictable, quantifiable and controllable self-* properties.
description: 17 pages, 14 figures, preprint of submission to Informatik-Spektrum published by Springer
Towards Generation of Indistinguishable Coherent States
Creators: name: Maan, Pranshu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We have addressed the characteristic distinguishability of coherent states in the temporal domain from a directly modulated quantum well-based gain-switched laser diode. Using small-signal and large-signal models, we identify tunable parameters to generate indistinguishable coherent states from an electrically pumped semiconductor laser. The experiment confirms the generation of indistinguishable signal and decoy coherent states as predicted by the numerical simulation.
description: Published in Applied Physics B
Treatment of controlled discharge leachate by coagulation-flocculation: influence of operational conditions
Creators: name: Djeffal, Khaled
name: Bouranene, Saliha
name: Fievet, Patrick
name: Déon, Sébastien
name: Gheid, Abdalhak
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Pharmacology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Hematology
subject: Plant Biology

description: The aim of this study was to optimize the operational conditions of the coagulation-flocculation process for the clarification of leachate from the landfill Technical Center of Souk-Ahras city. Three coagulants (ferric chloride, aluminum sulfate and ordinary alum) were tested and two types of agitation (mechanical and ultrasound) were implemented. The quality of treatment was assessed via physicochemical and bacteriological analyzes. The parametric study revealed that pH adjustment of leachate was crucial for the success of treatment. The stronger reduction of turbidity was obtained with a coagulant dose of 15%, a stirring speed of 250 rpm and a stirring time of about 5 min for both aluminum sulfate and ordinary alum and 15 min for ferric chloride. An optimum coagulant-to-leachate volume ratio of one was found for the three coagulants, resulting in a turbidity reduction of 99.4%, 98.9% and 98.6% with ferric chloride, aluminum sulfate and ordinary alum, respectively. Bacteriological analyzes highlighted the absence of total germs, fecal coliforms and streptococci for leachates treated with ferric chloride or aluminum sulfate. In contrast, coliforms including 9 total germs, 4 fecal germs and 3 fecal streptococci per 100 mL were detected for leachates treated with ordinary alum. The treatment of leachate was improved by using ultrasound waves with a frequency of 37 kHz and a power of 30 W. Indeed, a significant decrease in the turbidity of supernatants was observed as compared with the use of mechanical agitation, and a value of 0.19 NTU (instead of 0.61 NTU with mechanical agitation) was obtained for a treatment carried out with ferric chloride. The clarification of leachates was optimal at 20°C providing a BOD5 of 100 mg O2/L for both ferric chloride and aluminum sulfate, and 200 mg O2/L for ordinary alum.
Expanders are counterexamples to the $\ell^p$ coarse Baum-Connes conjecture
Creators: name: Chung, Yeong Chyuan
name: Nowak, Piotr W.
Publisher: name: arXiv
Year: 2018
Subjects: subject: K-Theory and Homology (math.KT)
subject: Metric Geometry (math.MG)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L80 (Primary), 19K56 (Secondary)

description: We consider an $\ell^p$ coarse Baum-Connes assembly map for $1
description: 25 pages. Final version, to appear in Journal of Noncommutative Geometry. Subsection 2.2 in the previous version has been moved to the appendix
Marvin: A Heuristic Search Planner with Online Macro-Action Learning
Creators: name: Coles, A. I.
name: Smith, A. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This paper describes Marvin, a planner that competed in the Fourth International Planning Competition (IPC 4). Marvin uses action-sequence-memoisation techniques to generate macro-actions, which are then used during search for a solution plan. We provide an overview of its architecture and search behaviour, detailing the algorithms used. We also empirically demonstrate the effectiveness of its features in various planning domains; in particular, the effects on performance due to the use of macro-actions, the novel features of its search behaviour, and the native support of ADL and Derived Predicates.
title: Mykobakteriosen beim Erwachsenen – eine relevante Erkrankung der Kopf-Hals-Region
Creators: name: Deichmüller, Cordula M.C.
name: Küstermeyer, Julian
name: Welkoborsky, H.-J.
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: Mykobakteriosen treten bei Erwachsenen auch in der Kopf-Hals-Region auf. Während atypische Mykobakteriosen eine Rarität sind,ist die Tbc häufiger. Hierbei kann eine zervikale LK-Schwellung erstes Symptom sein. Die Tbc der Lunge wird dann erst sekundär diagnostiziert.[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
Grandazzi, A. (2019): Urbs. Roms Weg zur Weltmetropole
Creators: name: Schulz-Koppe, Heinz-Jürgen
Publisher: name: Forum Classicum
Year: 2020

description: Rezension zu: Grandazzi, A. (2019): Urbs. Roms Weg zur Weltmetropole, wbg Philipp von Zabern, Darmstadt. 720 S. (ISBN: 978-3-8053-5215-4)
description: Forum Classicum, Nr. 2 (2020): Forum Classicum
title: Schilddrüsenchirurgie in Hamburg St. Georg – wie wir es machen
Creators: name: Graefe, Hendrik
name: Meyer, J. E.
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: In unserer HNO Klinik werden im Jahr ca. 350 Schilddrüsen- und Nebenschilddrüsenoperationen durchgeführt. Aufgrund des hohen Operationsvolumens besteht damit eine hohe Expertise für Schilddrüsenoperationen. Indikationen für die Operation sind vor allem suspekte und autonome[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
Number of colors needed to break symmetries of a graph by an arbitrary edge coloring
Creators: name: Alikhani, Saeid
name: Shekarriz, Mohammad Hadi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C09, 05C15, 05C25, 05C30

description: A coloring is distinguishing (or symmetry breaking) if no non-identity automorphism preserves it. The distinguishing threshold of a graph $G$, denoted by $θ(G)$, is the minimum number of colors $k$ so that every $k$-coloring of $G$ is distinguishing. We generalize this concept to edge-coloring by defining an alternative index $θ'(G)$. We consider $θ'$ for some families of graphs and find its connection with edge-cycles of the automorphism group. Then we show that $θ'(G)=2$ if and only if $G\simeq K_{1,2}$ and $θ'(G)=3$ if and only if $G\simeq P_4, K_{1,3}$ or $K_3$. Moreover, we prove some auxiliary results for graphs whose distinguishing threshold is 3 and show that although there are infinitely many such graphs, but they are not line graphs. Finally, we compute $θ'(G)$ when $G$ is the Cartesian product of simple prime graphs.
description: 15 pages
An Ecological study of factors affecting the microdistribution of ephemeroptera and other benthic macroinvertebrates in Bragg Creek, Alberta
Creators: name: Scott, Greg, 1952-
Publisher: name: University of Calgary
Year: 1985
Subjects: subject: QL 505.2 B72 S36 1986
subject: Ecology - Alberta - Bragg Creek
subject: Benthos - Alberta - Bragg Creek
subject: Mayflies - Alberta - Bragg Creek

description: Bibliography: p. 131-142.
First HARPSpol discoveries of magnetic fields in massive stars
Creators: name: Alecian, E.
name: Kochukhov, O.
name: Neiner, C.
name: Wade, G. A.
name: de Batz, B.
name: Henrichs, H.
name: Grunhut, J. H.
name: Bouret, J. -C.
name: Briquet, M.
name: Gagne, M.
name: Naze, Y.
name: Oksala, M. E.
name: Rivinius, T.
name: Townsend, R . H. D.
name: Walborn, N. R.
name: Weiss, W.
name: collaboration, the MiMeS
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In the framework of the Magnetism in Massive Stars (MiMeS) project, a HARPSpol Large Program at the 3.6m-ESO telescope has recently started to collect high-resolution spectropolarimetric data of a large number of Southern massive OB stars in the field of the Galaxy and in many young clusters and associations. In this Letter, we report on the first discoveries of magnetic fields in two massive stars with HARPSpol - HD 130807 and HD 122451, and confirm the presence of a magnetic field at the surface of HD 105382 that was previously observed with a low spectral resolution device. The longitudinal magnetic field measurements are strongly varying for HD 130807 from $\sim$-100 G to $\sim$700 G. Those of HD 122451 and HD 105382 are less variable with values ranging from $\sim$-40 to -80 G, and from $\sim$-300 to -600 G, respectively. The discovery and confirmation of three new magnetic massive stars, including at least two He-weak stars, is an important contribution to one of the MiMeS objectives: the understanding of origin of magnetic fields in massive stars and their impacts on stellar structure and evolution.
description: 4 pages, 2 figures, accepted for publication in A&A Letter