cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On analytical solutions of f(R) modified gravity theories in FLRW cosmologies
Creators: name: Domazet, Silvije
name: Radovanovic, Voja
name: Simonovic, Marko
name: Stefancic, Hrvoje
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A novel analytical method for f(R) modified theories without matter in Friedmann-Lemaitre-Robertson-Walker spacetimes is introduced. The equation of motion for the scale factor in terms of cosmic time is reduced to the equation for the evolution of the Ricci scalar R with the Hubble parameter H. The solution of equation of motion for actions of the form of power law in Ricci scalar R, is presented with a detailed elaboration of the action quadratic in R. The reverse use of the introduced method is exemplified in finding functional forms f(R) which lead to specified scale factor functions. The analytical solutions are corroborated by numerical calculations with excellent agreement. Possible further applications to the phases of inflationary expansion and late-time acceleration as well as f(R) theories with radiation are outlined.
description: 16 pages, 6 figures. v2: minor changes, references added. v3: minor changes, more references added. v4: version to appear in IJMPD. v5: DOI and journal reference added
3.5 GHz bandwidth low-cost GaAs IC receiver for 2.5 to 5 Gbit/s optical links
Creators: name: Corso, V.
name: Bastida, E.M.
name: Finardi, C.A.
name: Fischer, R.A.
name: Patiri, V.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1997
Subjects: ING-INF/01 Elettronica

description: This paper describes the main issues of a work which permitted development, optimization and fabrication of wideband packaged optical receivers for 2.5 to 5 Gbit/s optical links, having extremely low costs. A description of the manufacturing technologies we employed in the final product fabrication, various typical receiver performances as well as its cost analysis are also reported.
Understanding Toxicity of Thoracic Radiation Therapy : The Influence of Immune Checkpoint Inhibitors and Alpha-2-Macroglobulin
Creators: name: Reibnitz, Donata Freiin Von
Publisher: name: Otto-von-Guericke-Universität Magdeburg
Year: 2021
Subjects: subject: Strahlentherapie
subject: Thoraxkrebs
subject: Toxizität
subject: 615.842

description: Radiation therapy (RT) is essential in the treatment of thoracic malignancies. New challenges arise from the combination of radiation therapy (RT) and immune checkpoint inhibitors (ICI) as well as the identification of radioprotectors and predictive factors for adverse events (AE). In a retrospective study, data on common AEs was collected for 79 patients having received both thoracic RT and ICI therapy. Grade ≥ 2 pneumonitis, esophagitis, and dermatitis rates were 6.3, 7.6., and 10.1%, respectively. No differences in AE rates were seen whether the treatment timing was concurrent, closely timed (≤ four weeks interval), or sequential (> four weeks to six months interval). For the alpha-2-macroglobulin (α2M) study, 258 patients that received thoracic radiation for any kind of malignancy had pre-treatment serum α2M levels measured. A2M, which has shown radioprotective effects in preclinical studies, as well as a range of clinical and dosimetric factors were included in predictive models to analyze their association with the development of radiation pneumonitis and esophagitis. Grade ≥ 2 radiation pneumonitis and esophagitis rates of 14 and 23.6% were reported. The mean α2M level was 217.3 mg/dl in current smokers compared to 207.3 and 185.4 mg/dl in former and never smokers. Final predictive models included D65 in lung, max dose in heart, and treatment days for pneumonitis as well as D25, D40, and treatment days for esophagitis. Our studies showed no significant increase of common AEs after thoracic RT and ICI therapy compared to RT or ICI alone and no difference of AE rates with different treatment timing intervals. Although pre-RT levels of α2M did not improve the predictive power of our models for pneumonitis, esophagitis, and dermatitis, we found a univariate association between α2M levels and radiation esophagitis as well as the smoking status of the patients. Furthermore, we were able to validate several clinical and dosimetric factors with our predictive models.
Nonsingular Chaplygin gas cosmologies in universes connected by wormhole
Creators: name: Mokeeva, Anna
name: Popov, Vladimir
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present some exact solutions of the Einstein equations with an anisotropic fluid exploiting the Chaplygin equation of state. The solutions describe spacetimes with two identical T regions and an intermediate static spherically symmetric R region containing a wormhole. The metric in the T region represents an anisotropic Kantowski-Sachs cosmological model. Its evolution starts from an event horizon and develops according to different scenarios including eternal expansion, contraction and also a finite universe lifetime.
description: 14 pages, 9 figures
Optical data transmission over large temperature range using highly efficient oxide-confined GaAs VCSEL sources
Creators: name: Jager, R.
name: Grabherr, M.
name: Jung, C.
name: Schnitzer, P.
name: Weigl, B.
name: Ebeling, K.J.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1997
Subjects: ING-INF/01 Elettronica

description: GaAs based selectively oxidized vertical-cavity surface-emitting lasers (VCSELs) are highly attractive devices for parallel optical fiber interconnect data transmission. Here we de­monstrate 1 Gbit/s pseudo-random bit sequence (PRBS) transmission over 100 m graded index fiber in the temperature range from 20 to 100 °C applying constant 2.5 mA bias and 0.5Vpp voltage swing for modulation.
On Geometrically Unified Fields and Universal Constants
Creators: name: Fabbri, Luca
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the Cartan extension of Riemann geometry as the basis upon which to build the Sciama--Kibble completion of Einstein gravity, developing the most general theory in which torsion and metric have two independent coupling constants: the main problem of the ESK theory was that torsion, having the Newton constant, was negligible beyond the Planck scale, but in this $\mathrm{ESK}^{2}$ theory torsion, with its own coupling constant, may be relevant much further Planck scales; further consequences of these torsionally-induced interactions will eventually be discussed.
description: 10 pages
Diegetic vs. Non-Diegetic GUIs: What do Virtual Reality Players Prefer?
Creators: name: Saling, F.
name: Bernhardt, D.
name: Lysek, A.
name: Smekal, M.
Publisher: name: The Eurographics Association
Year: 2021
Subjects: Human centered computing
Virtual reality
Graphical user interfaces
User studies

description: Graphical user interfaces should not be a limiting factor when it comes to designing immersive virtual reality games. In this work we evaluate two different GUI designs for VR games: A non-diegetic HUD and a diegetic GUI, utilizing objects in the virtual environment to convey information. A pilot study was conducted to measure the players presence in VR and their GUI preference. Our results indicate that players prefer the diegetic GUI over the non-diegetic one. However the results lack statistical significance and thus further studies are necessary to identify the factors leading to the this preference.
description: ICAT-EGVE 2021 - International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments - Posters and Demos
description: Posters
description: 1
description: 2
description: F. Saling, D. Bernhardt, A. Lysek, and M. Smekal
description: CCS Concepts: Human-centered computing --> Virtual reality; Graphical user interfaces; User studies
Entropy of stochastic blockmodel ensembles
Creators: name: Peixoto, Tiago P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Social and Information Networks (cs.SI)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Stochastic blockmodels are generative network models where the vertices are separated into discrete groups, and the probability of an edge existing between two vertices is determined solely by their group membership. In this paper, we derive expressions for the entropy of stochastic blockmodel ensembles. We consider several ensemble variants, including the traditional model as well as the newly introduced degree-corrected version [Karrer et al. Phys. Rev. E 83, 016107 (2011)], which imposes a degree sequence on the vertices, in addition to the block structure. The imposed degree sequence is implemented both as "soft" constraints, where only the expected degrees are imposed, and as "hard" constraints, where they are required to be the same on all samples of the ensemble. We also consider generalizations to multigraphs and directed graphs. We illustrate one of many applications of this measure by directly deriving a log-likelihood function from the entropy expression, and using it to infer latent block structure in observed data. Due to the general nature of the ensembles considered, the method works well for ensembles with intrinsic degree correlations (i.e. with entropic origin) as well as extrinsic degree correlations, which go beyond the block structure.
description: 16 pages, 7 figures
Is corporate governance quality associated with corporate social responsibility quality?: Evidence from state-owned enterprises (SOES) and non-SOES operating in China
Creators: name: Zhang, Lei
Publisher: name: Macquarie University
Year: 2022
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: Recent developments in the Chinese capital market have increased the demand for corporate social responsibility (CSR) disclosure by listed firms. However, compared to the developed world, China has a short history of CSR. Further, Chinese firms generally have immature corporate governance systems. This thesis examines the relationship between corporate governance and CSR in two different types of Chinese firms, namely, state-owned enterprises (SOEs) and non-state-owned enterprises (non-SOEs). Based on stakeholder theory and legitimacy theory, this thesis hypothesises that corporate governance had a positive relationship with firm CSR quality, that this positive relationship is greater for SOEs than for non-SOEs, and finally that the positive relationship among Chinese firms' CSR quality and corporate governance quality is higher for SOEs operating in heavy industries that for non-SOEs operating in those industries. The hypotheses are mainly tested by ordinary least squares regression analysis. The sample for this thesis comes from the Top 100 CSR index firms from the Shanghai, Shenzhen, and Hong Kong Stock Exchanges. Overall, the thesis finds that CSR quality is positively associated with corporate governance quality, and that the positive relationship between Chinese firms' CSR quality and corporate governance quality is higher for SOEs operating in heavy industries than for non-SOEs operating in those industries. However, the thesis finds no general support for the hypothesis that Chinese firms' CSR quality is higher for SOEs than for non-SOEs -- abstract.
An active balun for high-CMRR IC design
Creators: name: Centurelli, F.
name: Luzzi, Raimondo
name: Marietti, Piero
name: Scotti, Giuseppe
name: Tommasino, Pasquale
name: Trifiletti, Alessandro
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: A circuit topology that provides large bandwidth single-ended to differential conversion is presented. The proposed cell is based on a differential pair where feedback on common mode signal provides about 6 dB conversion gain increase, together with attenuation of common mode signal. Small-signal characterisation is presented, based on a block decomposition of the cell. Measurements on a SiGe test IC show more than 5 dB of gain improvement with respect to a simple differential pair.
Macdonald polynomials in superspace as eigenfunctions of commuting operators
Creators: name: Blondeau-Fournier, O.
name: Desrosiers, P.
name: Lapointe, L.
name: Mathieu, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Combinatorics (math.CO)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 05E05, 81Q60 and 33D52

description: A generalization of the Macdonald polynomials depending upon both commuting and anticommuting variables has been introduced recently. The construction relies on certain orthogonality and triangularity relations. Although many superpolynomials were constructed as solutions of highly over-determined system, the existence issue was left open. This is resolved here: we demonstrate that the underlying construction has a (unique) solution. The proof uses, as a starting point, the definition of the Macdonald superpolynomials in terms of the Macdonald non-symmetric polynomials via a non-standard (anti)symmetrization and a suitable dressing by anticommuting monomials. This relationship naturally suggests the form of two family of commuting operators that have the defined superpolynomials as their common eigenfunctions. These eigenfunctions are then shown to be triangular and orthogonal. Up to a normalization, these two conditions uniquely characterize these superpolynomials. Moreover, the Macdonald superpolynomials are found to be orthogonal with respect to a second (constant-term-type) scalar product and its norm is evaluated. The latter is shown to match (up to a q-power) the conjectured norm with respect to the original scalar product. Finally, we recall the super-version of the Macdonald positivity conjecture and present two new conjectures which both provide a remarkable relationship between the new (q,t)-Kostka coefficients and the usual ones.
description: v2: revised and enlarged version with new section on the existence of schur functions in superspace
Estimating the Pose of a Medical Manikin for Haptic Augmentation of a Virtual Patient in Mixed Reality Training
Creators: name: Scherfgen, David
name: Schild, Jonas
Publisher: name: The Eurographics Association
Year: 2021
Subjects: Human centered computing
Mixed / augmented reality
Virtual reality

description: Virtual medical emergency training provides complex while safe interactions with virtual patients. Haptically integrating a medical manikin into virtual training has the potential to improve the interaction with a virtual patient and the training experience. We present a system that estimates the 3D pose of a medical manikin in order to haptically augment a human model in a virtual reality training environment, allowing users to physically touch a virtual patient. The system uses an existing convolutional neural network-based (CNN) body keypoint detector to locate relevant 2D keypoints of the manikin in the images of the stereo camera built into a head-mounted display. The manikin's position, orientation and joint angles are found by non-linear optimization. A preliminary analysis reports an error of 4.3 cm. The system is not yet capable of real-time processing.
description: ICAT-EGVE 2021 - International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments - Posters and Demos
description: Posters
description: 3
description: 4
description: David Scherfgen and Jonas Schild
description: CCS Concepts: Human-centered computing --> Mixed / augmented reality; Virtual reality
Hexapod Robot for Surveillance and Metal Detection Using Raspberry Pi Pico H and ESP8266
Creators: name: Jidnya Pagare, Vineet Malur, Sayali Kothawade
Publisher: name: Zenodo
Year: 2025

description: This paper presents the design and development of a hexapod robot for surveillance and metaldetection, integrating Raspberry Pi Pico H, ESP8266, and ESP32-CAM. The robot's movement iscontrolled using inverse kinematics, ensuring precise leg coordination. A Wi-Fi-based interface viaRemoteXY enables remote operation, while real-time video streaming supports surveillance. Additionally,an A88 metal detection sensor identifies metallic objects and triggers alerts. Performance evaluationsinclude terrain adaptability, detection accuracy, and power efficiency. Experimental results demonstrate92% accuracy in metal detection and stable movement across uneven surfaces. Future enhancements willfocus on AI-powered autonomous navigation and LoRa-based communication for extended operationalrange.
Arbeitsbezogenes Verhalten, Situationserleben und individueller Umgang mit Stress bei jüngeren und älteren Lehrkräften
Creators: name: Jurkul, Tanja
Publisher: name: Otto-von-Guericke-Universität Magdeburg
Year: 2020
Subjects: subject: Stressbewältigung
subject: Lehrer
subject: Ukraine
subject: 616.9803

description: Der Lehrberuf ist zahlreichen Belastungsfaktoren ausgesetzt, die zu hoher negativen Beanspruchung und damit zur Entstehung insbesondere psychischer Erkrankungen führen können. Diese Arbeit ist Teilprojekt eines internationalen Forschungsprojektes, das die psychische Gesundheit von Lehrern untersucht. Für die vorliegende Studie wurde in einer ukrainischen Stichprobe anhand von drei standardisierten Fragebögen das arbeitsbezogene Verhalten, das Situationserleben und der individuelle Umgang mit Stress erhoben und damit verbundene gesundheitsfördernde oder -gefährdende Faktoren im Altersvergleich analysiert. Es wurden 238 Lehrer im Alter von 43,7 ± 12,55 Jahren an Grundschulen, Sekundarstufen und Gymnasien in der Stadt Charkiw befragt. Sowohl die Ergebnisse der jüngeren (< 45 Jahre) als auch die der älteren (≥ 45 Jahre) Lehrer weisen signifikant gesundheitsgefährdende Merkmale auf. Im Arbeitsverhalten tritt beispielsweise das Risikomuster A überwiegend bei den Älteren und das Risikomuster B vermehrt bei den Jüngeren auf. Ältere Lehrer zeigen sich inaktiver im sozial-kommunikativen Verhalten. Im Leistungsverhalten konnten bei den jüngeren Lehrkräften im Vergleich zu den Älteren höhere Selbstunsicherheit und geringere Stabilität festgestellt werden. Die Untersuchung des individuellen Umgangs mit Stress zeigt, dass vor allem die Älteren überbeansprucht und die Jüngeren stabiler und stressresistenter sind. Diese Promotion untersucht den Wirkungszusammenhang zwischen subjektiven Merkmalen in der Arbeits- und Stresssituation sowie personenbezogenen Ressourcen, als Grundlage zur Entwicklung geeigneter Präventionsmaßnahmen für die psychische Gesundheit.
A novel technique for obtaining LO and RF (LSB) Rejection in 25-40 GHz microwave up conversion mixers based on the concepts of distributed and double balanced mixing
Creators: name: Mehdi, M.
name: Rumelhard, C.
name: Polleux, J.L.
name: Lefebvre, B.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: In this paper a new configuration of up converter is presented. In this circuit, the LO and RF (LSB)frequencies are rejected thanks to a distributed and balanced circuit. Eight GaAs PHEMTs with a gate-length of 0.25 µm are used. A conversion gain of - 6 dB and a rejection over 6 dB on LO and RF (LSB) are obtained.
Analysis of the low-energy $π^- p$ charge-exchange data
Creators: name: Matsinos, Evangelos
name: Rasche, Guenther
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We analyse the charge-exchange (CX) measurements $π^- p\rightarrow π^0 n$ below pion laboratory kinetic energy of 100 MeV. After the removal of five degrees of freedom from the initial database, we combine it with the truncated $π^+ p$ database of Ref. \cite{mrw1} and fit the ETH model \cite{glmbg} to the resulting data. The set of the parameter values of the ETH model, as well as the predictions derived on their basis for the hadronic phase shifts and for the low-energy $πN$ constants, are significantly different from the results obtained in the analysis of the truncated $π^\pm p$ elastic-scattering databases. The main difference in the hadronic phase shifts occurs in $\tildeδ_{0+}^{1/2}$. We discuss the implications of these findings in terms of the violation of the isospin invariance in the hadronic part of the $πN$ interaction. The effect observed amounts to the level of $7-8 %$ in the CX scattering amplitude below 70 MeV. The results and conclusions of this study agree well with those obtained in the mid 1990s, when the isospin invariance was first tested by using $πN$ experimental data, and disagree with the predictions obtained within the framework of the heavy-baryon Chiral-Perturbation Theory.
RF characteristics of BJT devices with selectively or fully ion-implanted collector
Creators: name: Meng, C. C.
name: Su, J. Y.
name: Tsou, B. C.
name: Huang, G. W.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: A selectively ion-implanted collector (SIC) is implemented in a 0.8 um BiCMOS process to improve the RF characteristics of the BJT devices. The SIC BJT device has better ft and fmax than the FIC (fully ion-implanted collector) BJT device because the extrinsic base-collector capacitance is reduced by the SIC process. The fmax is 9.5GHz and ft is 7.8 GHz for the SIC BJT device while the fmax is 7.2 GHz and fmax is 4.5 GHz for the FIC BJT device when biased at Vce=3.6 V and Jc=0.09 mA/um2. The nois parameters are the same for both BJT devices but the associated gain is higher for the SIC BJT device.
The Spectare Device for Experiencing Stereoscopic Photographs
Creators: name: Taipina, Daniel
name: Cardoso, Jorge C. S.
Publisher: name: The Eurographics Association
Year: 2021
Subjects: Human centered computing
Virtual reality
Displays and imagers

description: Stereoscopic photography was one of the main forms of visual communication in the second half of the 19th century, leaving even today an important impact on our visual culture. In this work, we have re-imagined the classical stereoscope in order to take advantage of smartphone-VR technological capabilities, while still trying to maintain a viewing experience close to the original. This poster describes the design and operation of the Spectare device for experiencing stereoscopic photographs.
description: ICAT-EGVE 2021 - International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments - Posters and Demos
description: Posters
description: 5
description: 6
description: Daniel Taipina and Jorge C. S. Cardoso
description: CCS Concepts: Human-centered computing --> Virtual reality; Displays and imagers
Einfluss von Alter, Geschlecht und Art der Erkrankung auf Inhalatorpräferenz und Fehlerquote bei Patienten mit chronisch-obstruktiver Atemwegserkrankung
Creators: name: Sonnenburg, Tina
Publisher: name: Otto-von-Guericke-Universität Magdeburg
Year: 2020
Subjects: subject: Obstruktive Ventilationsstörung
subject: Inhalator
subject: 616.20046

description: Inhalatoren sind der Grundbaustein der Therapie obstruktiver Atemwegserkrankungen. Die Fehlerquote der Patienten bei der Benutzung des eigenen Inhalators ist hoch. In einigen Studien wurde gezeigt, dass die Fehlquote durch die Verwendung eines durch den Patienten präferierten Gerätes verbessert werden kann. Ziel der Arbeit war es die Abhängigkeit dieser Präferenz sowie der Fehlerquote bei der Inhalation von Patientenalter, Geschlecht und Art der Erkrankung zu untersuchen. Des Weiteren sollten für den Benutzer wichtige Eigenschaften eines Inhalators identifiziert werden. Es wurde die Inhalationstechnik der Probanden mit dem eigenen Gerät sowie mit 10 unterschiedlichen Placebo-Inhalatoren überprüft. Mittels eines Fragebogens wurde außerdem die Bewertung einzelner Eigenschaften dieser Inhalatoren vorgenommen sowie das am meisten und am wenigsten favorisierte Gerät für den täglichen Gebrauch identifiziert. Die höchste Fehlerquote zeigten Patienten, welche keine Einweisung in ihr Gerät erhalten hatten. Es konnte eine Abhängigkeit der Fehlerquote und Versuchsanzahl von Patientenalter und Art der Erkrankung gezeigt werden. Patienten über 60 Jahren und Patienten mit chronisch obstruktiver Lungenerkrankung (COPD) hatten eine signifikant höhere Fehlerquote mit dem eigenen Gerät und höhere Versuchsanzahl mit den 10 Placebo- Inhalatoren. Mit dem Elpenhaler® benötigten Probanden die meisten Inhalationsversuche bis zur fehlerfreien Anwendung. Die wenigsten Versuche wurden mit dem Turbohaler® benötigt. Für den täglichen Gebrauch wurde der Spiromax® präferiert. Insgesamt wurden Multidosis- Pulverinhalatoren gegenüber anderen Geräten bevorzugt. Am wenigsten präferiert wurde der Elpenhaler®.
Additional file 1 of Online sex-seeking among Chinese heterosexual men who seek care in sexually transmitted infections clinics: a cross-sectional study
Creators: name: Li, Changchang
name: Tang, Weiming
name: Ho, Hung Chak
name: Zhao, Peizhen
name: Chen, Lei
name: Wang, Yajie
name: Xiong, Mingzhou
name: Yang, Bin
name: Zheng, Heping
name: Wang, Cheng
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Additional file 1: Table S1. The Reporting cases of five surveillance STIs among 10 study settings in Guangdong, China, in 2015 and 2018*. Figure S1. The geographic distribution of 10 study settings in this survey. Table S2. The number of recruited participants from 10 study settings in Guangdong, China. Table S3. The items of HIV-related knowledge in questionnaire. Table S4. List of laboratory test method for sexually transmmitied infections.
Towards a higher standard for international disability rights and social justice : an Islamic perspective on the universal right to social welfare for people with special challenges
Creators: name: Hawa, Husam Eddin
Publisher: name: University of British Columbia
Year: 2015

description: Although people with disabilities (PWDs) experience significant marginalization and vulnerability, they are not receiving social income assistance in the Middle East and North Africa (MENA) despite of their right under the United Nations Convention on the Rights of Persons with Disabilities. Social welfare laws in the MENA should be reformed to include disability income assistance. These laws (that were inherited from the Western colonists) did not progress as much as their Western counterpart. This legal reform should consider the evolution of Western social welfare systems, which are based on liberal equality theories. This legal transplant of a liberal secular system into the MENA’s Islamic background requires testing the compatibility between liberal and Islamic moral values. In order to do this, first, I will analyze the strengths and weaknesses of these liberal theories in relation to the public policy to address the medical, economic and social needs of PWDs. Then, I will use my own amalgamation of these liberal ideas to form an Islamic version of this new liberal theory while showing their compatibility with my own Islamic perspective on liberty and equality (i.e. proposing a common ground between liberal and Islamic moral values). Next, I will use this common ground to explain Qurʼānic rules about Zakāh (Islamic social tax) with my own new interpretation that has a commitment to social justice and a consideration of both liberal and Islamic moral values. Finally, based on this new interpretation, I will offer a new model for social welfare systems in the MENA. Therefore, based on the above, entitlements to disability supports can be justified and delivered through the governmental implementation of Zakāh. This implementation is feasible as it can be designed and delivered in Islamic countries with similar or better results than in Western liberal countries. Such a system with specific reference to Qurʼānic teachings is both socially and politically preferable to the imposition of traditional Western approaches to rights and services. This proposal would lead to establishing a higher standard for international disability rights (more specifically, the universal human right to social welfare) and establishing a higher standard for social justice.
Gauge Invariant Cutoff QED
Creators: name: Ardalan, F.
name: Arfaei, H.
name: Ghasemkhani, M.
name: Sadooghi, N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A hidden generalized gauge symmetry of a cutoff QED is used to show the renormalizability of QED. In particular, it is shown that corresponding Ward identities are valid all along the renormalization group flow. The exact Renormalization Group flow equation corresponding to the effective action of a cutoff lambda phi^4 theory is also derived. Generalization to any gauge group is indicated.
description: V1: 18 pages, 2 figures; V2: Discussions improved. Version accepted for publication in Physica Scripta
Indirect User Guidance by Pedestrians in Virtual Environments
Creators: name: Bönsch, Andrea
name: Güths, Katharina
name: Ehret, Jonathan
name: Kuhlen, Torsten W.
Publisher: name: The Eurographics Association
Year: 2021
Subjects: subject: Computing methodologies
subject: Perception
subject: Human centered computing
subject: User studies
subject: Applied computing
subject: Psychology
subject: FOS: Psychology

description: Scene exploration allows users to acquire scene knowledge on entering an unknown virtual environment. To support users in this endeavor, aided wayfinding strategies intentionally influence the user's wayfinding decisions through, e.g., signs or virtual guides. Our focus, however, is an unaided wayfinding strategy, in which we use virtual pedestrians as social cues to indirectly and subtly guide users through virtual environments during scene exploration. We shortly outline the required pedestrians' behavior and results of a first feasibility study indicating the potential of the general approach.
description: ICAT-EGVE 2021 - International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments - Posters and Demos
description: Posters
description: 7
description: 8
description: Andrea Bönsch, Katharina Güths, Jonathan Ehret, and Torsten W. Kuhlen
description: CCS Concepts: Computing methodologies --> Perception; Human-centered computing --> User studies; Applied computing --> Psychology
Prävalenz des schädlichen Alkoholkonsums in der Schwangerschaft im Vergleich zu nicht-schwangeren Frauen in Sachsen-Anhalt auf der Basis Alkoholkonsum-assoziierter Biomarker
Creators: name: Adler, Jakob
Publisher: name: Otto-von-Guericke-Universität Magdeburg
Year: 2021
Subjects: subject: Alkoholkonsum
subject: Schwangerschaft
subject: Biomarker
subject: 615.907

description: Alkohol ist ein in unserer westlichen Gesellschaft breit akzeptiertes Konsumgut. Verschiedene Studien haben versucht, die Prävalenz des Alkoholkonsums in der Schwangerschaft unter Nutzung von Fragebögen zu erfassen, wobei aufgrund der gesellschaftlichen Stigmatisierung von einer potenziellen Unterschätzung der Prävalenz in diesen Arbeiten auszugehen ist. Das Ziel dieser Studie ist die Berechnung der Prävalenz des schädlichen Alkoholkonsums (mehr als 40 g Ethanol pro Tag) unter der Nutzung verschiedener Alkoholkonsum-assoziierter Biomarker (CDT und %CDT, GGT, MCV sowie dem kombinierten Biomarker GGT-CDT). Die Datengrundlage bilden die Messungen dieser Biomarker bei 2.182 schwangeren sowie 743 bezüglich der Altersstruktur vergleichbaren, nicht-schwangeren Frauen. Es wird gezeigt, dass die errechneten Prävalenzen stark von den genutzten Biomarkern und den jeweils gewählten Cut-offs abhängen. Die Prävalenz mindestens eines erhöht gemessenen Biomarkers, der einen Hinweis auf einen schädlichen Alkoholkonsum gibt, beträgt in der Gruppe der Schwangeren 13,8 % (95%-KI: 12,4─15,2) und in der Gruppe der Nicht-Schwangeren 18,6 % (95%-KI: 15,8─21,4). 85 % dieser schwangeren Frauen zeigen ein isoliert erhöhtes %CDT. Nutzt man alleinig den nach aktueller Literatur spezifischsten Parameter GGT-CDT, so ergibt sich eine Prävalenz des schädlichen Alkoholkonsums in der Schwangerschaft von 0,5 % (95%-KI: 0,2─0,7).
Supplementary document for Second harmonic generation by matching the phase distribution of topological corner and edge states - 6374272.pdf
Creators: name: Hu, Weipeng
name: Liu, Chao
name: Dai, Xiaoyu
name: Wen, ShuangChun
name: Xiang, Yuanjiang
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplemental Document
Variational Bayesian algorithm for quantized compressed sensing
Creators: name: Yang, Zai
name: Xie, Lihua
name: Zhang, Cishen
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Compressed sensing (CS) is on recovery of high dimensional signals from their low dimensional linear measurements under a sparsity prior and digital quantization of the measurement data is inevitable in practical implementation of CS algorithms. In the existing literature, the quantization error is modeled typically as additive noise and the multi-bit and 1-bit quantized CS problems are dealt with separately using different treatments and procedures. In this paper, a novel variational Bayesian inference based CS algorithm is presented, which unifies the multi- and 1-bit CS processing and is applicable to various cases of noiseless/noisy environment and unsaturated/saturated quantizer. By decoupling the quantization error from the measurement noise, the quantization error is modeled as a random variable and estimated jointly with the signal being recovered. Such a novel characterization of the quantization error results in superior performance of the algorithm which is demonstrated by extensive simulations in comparison with state-of-the-art methods for both multi-bit and 1-bit CS problems.
description: Accepted by IEEE Trans. Signal Processing. 10 pages, 6 figures
Simulation of a Virtual Reality Environment for Cognitive and Motoric Testing with Unity and a Mechanical Treadmill
Creators: name: Fischer, N.
name: Schellenbach, M.
Publisher: name: The Eurographics Association
Year: 2021
Subjects: Human centered computing
Virtual reality

description: In many virtual reality applications the movement is done with simple pointing and teleportation to the designated location. On the other side there is a need of combining treadmill walking with virtual reality environments to train participants in demanding but controlled walking scenarios. In this demonstration we therefore combined the VR capabilities of the Oculus Quest system with a mechanical treadmill in order to create a framework for cognitive and motoric testing and training. A test subject has the control over increasing and decreasing the speed at any given time during the experiment. A supervisor can actively communicate with the test subject with simple lines of text and also has the means to intervene in case of emergency.
description: ICAT-EGVE 2021 - International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments - Posters and Demos
description: Demo
description: 9
description: 10
description: N. Fischer and M. Schellenbach
description: CCS Concepts: Human-centered computing --> Virtual reality
title: Colonial Warfare and Occupation (Africa)
title: Colonial Warfare and Occupation (Africa)
Creators: name: Digre, Brian
Publisher: name: BSB - Bavarian State Library
Year: 2017
Subjects: subject: Afrika
subject: Weltkrieg [1914-1918]
subject: World War, 1914-1918--Campaigns--Africa

description: In 1914, Allied leaders plunged Africans into a conflict that was not their own. In West Africa, British and French colonial troops quickly occupied Togo, while the conquest of Cameroon proved much more difficult. A relatively short campaign led by white South African cavalry resulted in the seizure of German Southwest Africa. The grueling fighting in German East Africa lasted four years as remarkable African soldiers, their able German commander, terrain and climate repeatedly frustrated Allied military efforts. Campaigns in Cameroon and especially East Africa took a terrible human toll. Ultimately, Allied victory led to a repartition of Africa and the persistence of colonial rule.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
The electronic properties of bilayer graphene
Creators: name: McCann, Edward
name: Koshino, Mikito
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We review the electronic properties of bilayer graphene, beginning with a description of the tight-binding model of bilayer graphene and the derivation of the effective Hamiltonian describing massive chiral quasiparticles in two parabolic bands at low energy. We take into account five tight-binding parameters of the Slonczewski-Weiss-McClure model of bulk graphite plus intra- and interlayer asymmetry between atomic sites which induce band gaps in the low-energy spectrum. The Hartree model of screening and band-gap opening due to interlayer asymmetry in the presence of external gates is presented. The tight-binding model is used to describe optical and transport properties including the integer quantum Hall effect, and we also discuss orbital magnetism, phonons and the influence of strain on electronic properties. We conclude with an overview of electronic interaction effects.
description: review, 31 pages, 15 figures
title: Lamszus, Wilhelm
title: Lamszus, Wilhelm
Creators: name: Hankel, Gerd
Publisher: name: BSB - Bavarian State Library
Year: 2017
Subjects: subject: Lamszus, Wilhelm
subject: Lamszus, Wilhelm, 1881-1965

description: Wilhelm Lamszus was a progressive educator from Hamburg. He is known beyond the realm of education in particular for his book ''The Human Slaughter-House. Scenes from a War That Is Sure to Come'' (''Das Menschenschlachthaus. Bilder vom kommenden Krieg''), published in 1912, in which he warns readers about the destructive force of modern, industrialized war.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
Propensity-Score-Matching Sleeve Gastrektomie vs. Magenbypass nach 3 Jahren
Creators: name: Hartmann, Lisa
Publisher: name: Otto-von-Guericke-Universität Magdeburg
Year: 2020
Subjects: subject: Sleeve-Resektion
subject: Magenbypass
subject: Fettsucht
subject: 617.43

description: Die Prävalenz der Adipositas ist in den letzten Jahren erheblich gestiegen. Durch zahlreiche Komorbiditäten und Folgeerkrankungen, die damit einhergehen, kommt es zur eingeschränkten Lebensqualität der Betroffenen sowie zu einer gesteigerten Morbidität und Mortalität. Um diesem Problem entgegenzuwirken, haben sich in den letzten Jahren verschiedene chirurgische Therapieverfahren etabliert. Die vorliegende Arbeit vergleicht perioperative Daten von Patienten nach Sleeve Gastrektomie und Magenbypass. Grundlage dafür war die „Qualitätssicherungsstudie für operative Therapie der Adipositas“ aus dem Zeitraum von 2005 bis 2017. Besonderer Fokus lag auf der Morbidität und Mortalität sowie den Komorbiditäten. Neben allgemeinen demografischen Parametern wurden ebenso Komorbiditäten und Komplikationen verglichen. Damit sollte ein Beitrag zur Qualitätssicherung in der Adipositas- und metabolischen Chirurgie geleistet werden. Statistisch signifikante Unterschiede ließen sich bei der BMI-Reduktion und der Komorbidität Reflux feststellen. Keine Unterschiede bestanden bei den Komplikationen.
title: Liman von Sanders, Otto Viktor Karl
title: Liman von Sanders, Otto Viktor Karl
Creators: name: Gerhards, Thomas
Publisher: name: BSB - Bavarian State Library
Year: 2017
Subjects: subject: Liman von Sanders, Otto
subject: Liman von Sanders, Otto Viktor Karl, 1855-1929

description: Liman von Sanders was the head of the German military mission in the Ottoman Empire from December 1913. As the commander of the 5th Army he was in charge of the defence of Gallipoli. In March 1918, he took over the command of the “''Heeresgruppe F''“ in Palestine.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
Evaluation of Optimization Strategies for Synchronization of Fine Motor Movements in Distributed Real-Time Systems
Creators: name: Pavlov, A. S.
name: Israel, J. H.
name: Keppler, S.
Publisher: name: The Eurographics Association
Year: 2021
Subjects: Human centered computing
Collaborative and social computing

description: With the growing demand for real-time collaboration in distributed immersive environments, e.g. in mechanical engineering or health care, a need for synchronisation of user's fine motor movements is gaining significance. This paper presents the evaluation of several popular optimization strategies for synchronization of fine motor movements. The evaluation was performed using a dedicated simulation software which recorded several network metrics and transformation errors. Fine motorics included hand and finger movements, which were recorded using the finger tracking system Leap Motion. It was shown that a combination of Cubic Hermite Spline Interpolation for spatial positions and Squad Interpolation for spatial rotations with Local Lag for time synchronization provided the smallest average position error among all clients at a 10 Hz tick rate.
description: ICAT-EGVE 2021 - International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments - Posters and Demos
description: Poster
description: 11
description: 12
description: A. S. Pavlov, J. H. Israel, and S. Keppler
description: CCS Concepts: Human-centered computing --> Collaborative and social computing
Modeling the dust emission from PN IC418
Creators: name: Morisset, Christophe
name: Szczerba, Ryszard
name: Garcia-Hernandez, D. A.
name: Garcia-Lario, Pedro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We construct a detailed model for the IR dust emission from the PN IC 418. We succeed to reproduce the emission from 2 to 200$μ$m. We can determine the amount of emitting dust as well as its composition, and compare to the depletion of elements determined for the photoionized region.
description: Poster contribution (2 pages, 1 figure) to IAU Symposium 283: "Planetary Nebulae: An Eye to the Future" held in Puerto de la Cruz, Tenerife, Spain in July 25th-29th 2011. Few typos corrected
title: Organization of War Economies and War Finance (South East Europe)
title: Organization of War Economies and War Finance (South East Europe)
Creators: name: Rafailović, Jelena
Publisher: name: BSB - Bavarian State Library
Year: 2017
Subjects: subject: Südosteuropa
subject: Weltkrieg [1914-1918]
subject: World War, 1914-1918--Balkan Peninsula

description: This article presents the main characteristics of organization and functioning of war economies in South East Europe, Serbia, Bulgaria, Romania, Greece, Montenegro and Albania, during the First World War. It outlines the efforts invested in the organization of war production and the problems related to state finances and trade through a summary of basic economic indicators.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
title: Freikorps
title: Freikorps
Creators: name: Bucholtz, Mattheis
Publisher: name: BSB - Bavarian State Library
Year: 2017
Subjects: subject: Freikorps
subject: Weimarer Republik
subject: Deutschland
subject: Germany. Heer. Freikorps
subject: Germany--History--1918-1933

description: ''Freikorps'' units were paramilitary formations which generally supported rightwing political causes, although they existed within a broader paramilitary environment. Many First World War veterans joined the ''Freikorps'' when they were first created in late November 1918. ''Freikorps'' units were involved in combat operations during political unrest in the early years of the Weimar Republic before undergoing a significant organizational and methodological transformation into political organizations in the late 1920s.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
The pentagon relation and incidence geometry
Creators: name: Doliwa, Adam
name: Sergeev, Sergey M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We define a map S: D^2 x D^2 --> D^2 x D^2, where D is an arbitrary division ring (skew field), associated with the Veblen configuration, and we show that such a map provides solutions to the functional dynamical pentagon equation. We explain that fact in elementary geometric terms using the symmetry of the Veblen and Desargues configurations. We introduce also another map of a geometric origin with the pentagon property. We show equivalence of these maps with recently introduced Desargues maps which provide geometric interpretation to a non-commutative version of Hirota's discrete Kadomtsev-Petviashvili equation. Finally we demonstrate that in an appropriate gauge the (commutative version of the) maps preserves a natural Poisson structure - the quasiclassical limit of the Weyl commutation relations. The corresponding quantum reduction is then studied. In particular, we discuss uniqueness of the Weyl relations for the ultra-local reduction of the map. We give then the corresponding solution of the quantum pentagon equation in terms of the non-compact quantum dilogarithm function.
description: 20 pages, 5 figures; Section 3 reorganized and expanded, typos corrected (v2)