cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ribosome profiling data analysis on quadriceps muscles obtained from wild type, calorie restricted and rapamycin treated adult mice
Creators: name: Ataman, Meric
Publisher: name: Zenodo
Year: 2023

description: Ribosome profiling (Riboseq) pre-processing, mapping and downstream data analysis for the identification of small open reading frames (sORFs) and readthrough (RT), C-terminal extension of proteins with evidence from Riboseq. The analyzed data is obtained from quadriceps muscles of adult mice, from 4 cohorts which are 10 months old wild type, 30 months old wild type, 30 months old calorie-restricted and 30 months old rapamycin treated.
Exclusion processes on networks as models for cytoskeletal transport
Creators: name: Neri, I.
name: Kern, N.
name: Parmeggiani, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We present a study of exclusion processes on networks as models for complex transport phenomena and in particular for active transport of motor proteins along the cytoskeleton. We argue that active transport processes on networks spontaneously develop density heterogeneities at various scales. These heterogeneities can be regulated through a variety of multi-scale factors, such as the interplay of exclusion interactions, the non-equilibrium nature of the transport process and the network topology. We show how an effective rate approach allows to develop an understanding of the stationary state of transport processes through complex networks from the phase diagram of one single segment. For exclusion processes we rationalize that the stationary state can be classified in three qualitatively different regimes: a homogeneous phase as well as inhomogeneous network and segment phases. In particular, we present here a study of the stationary state on networks of three paradigmatic models from non-equilibrium statistical physics: the totally asymmetric simple exclusion process, the partially asymmetric simple exclusion process and the totally asymmetric simple exclusion process with Langmuir kinetics. With these models we can interpolate between equilibrium (due to bi-directional motion along a network or infinite diffusion) and out-of-equilibrium active directed motion along a network. The study of these models sheds further light on the emergence of density heterogeneities in active phenomena.
description: 55 pages, 26 figures
Discrete clouds of neutral gas between the galaxies M31 and M33
Creators: name: Wolfe, Spencer A.
name: Pisano, D. J.
name: Lockman, Felix J.
name: McGaugh, Stacy S.
name: Shaya, Edward J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Spiral galaxies must acquire gas to maintain their observed level of star formation beyond the next few billion years (Leroy et al. 2008). A source of this material may be the gas that resides between galaxies, but our understanding of the state and distribution of this gas is incomplete (Shull et al. 2012). Radio observations (Braun & Thilker 2004) of the Local Group of galaxies have revealed hydrogen gas extending from the disk of the galaxy M31 at least halfway to M33. This feature has been interpreted to be the neutral component of a condensing intergalactic filament (Davé et al. 2001) which would be able to fuel star formation in M31 and M33, but simulations suggest that such a feature could also result from an interaction between both galaxies within the past few billion years (Bekki 2008). Here we report radio observations showing that about 50 per cent percent of this gas is composed of clouds, while the rest is distributed in an extended, diffuse component. The clouds have velocities comparable to those of M31 and M33, and have properties suggesting they are unrelated to other Local Group objects. We conclude that the clouds are likely to be transient condensations of gas embedded in an intergalactic filament and are therefore a potential source of fuel for future star formation in M31 and M33.
description: 7 pages, 4 figures, including supplementary information and figure, to appear in Nature
Effizientes Netzwerkmodell zur breitbandigen Modellierung gleichförmiger Mehrfachleitungen
Creators: name: Mantzke, Andreas
name: Südekum, Sebastian
name: Leone, Marco
Publisher: name: Frankfurt/Main : mesago
Year: 2018
Subjects: subject: Netzmodell
subject: Zeitbereich
subject: Frequenzband
subject: Frequenzbandbreite
subject: quasistatische Analyse
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: Ein neuartiges äquivalentes Netzwerkmodell für MTLs wurde vorgestellt und validiert. Es basiert auf der kanonischen Foster-Netzwerkdarstellung in Kombination mit einem gekoppelten Induktivitätsnetzwerk, das die Konvergenz beschleunigt. Die äquivalenten Netzwerkelemente werden durch eine modale und quasi-statische Analyse bestimmt, die nur einmalig auszuführen ist. Die Ordnung des Foster-ESBs kann durch eine einfache Beziehung, basierend auf der erforderlichen Frequenzbandbreite, sicher abgeschätzt werden. Im Gegensatz zu einigen anderen Ansätzen, ist das Modell inhärent stabil und kann mit linearen und nichtlinearen Abschlüssen verwendet werden. Die Vielseitigkeit und Effizienz des vorgeschlagenen Modells wird durch den Vergleich mit einer kommerziellen 3D-Software bei einem nichtlinearen Simulationsbeispiel im Zeitbereich demonstriert.
Optimal Hormone Replacement Therapy in Hypothyroidism - A Model Predictive Control Approach
Creators: name: Wolff, Tobias M.
name: Dietrich, Johannes W.
name: Müller, Matthias A.
Publisher: name: Lausanne : Frontiers Research Foundation
Year: 2022
Subjects: subject: automatic control
subject: combined therapy
subject: mathematical modeling
subject: model predictive control
subject: monotherapy
subject: thyroid homeostasis
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: In this paper, we address the problem of optimal thyroid hormone replacement strategy development for hypothyroid patients. This is challenging for the following reasons. First, it is difficult to determine the correct dosage leading to normalized serum thyroid hormone concentrations of a patient. Second, it remains unclear whether a levothyroxine L-T4) monotherapy or a liothyronine/levothyroxine (L-T3/L-T4) combined therapy is more suitable to treat hypothyroidism. Third, the optimal intake frequency of L-T3/L-T4 is unclear. We address these issues by extending a mathematical model of the pituitary-thyroid feedback loop to be able to consider an oral intake of L-T3/L-T4. A model predictive controller (MPC) is employed to determine optimal dosages with respect to the thyroid hormone concentrations for each type of therapy. The results indicate that the L-T3/L-T4 combined therapy is slightly better (in terms of the achieved hormone concentrations) to treat hypothyroidism than the L-T4 monotherapy. In case of a specific genetic variant, namely genotype CC in polymorphism rs2235544 of gene DIO1, the simulation results suggest that the L-T4 monotherapy is better to treat hypothyroidism. In turn, when genotype AA is considered, the L-T3/L-T4 combined therapy is better to treat hypothyroidism. Furthermore, when genotype CC of polymorphism rs225014 (also referred to as c.274A>G or p.Thr92Ala) in the DIO2 gene is considered, the outcome of the L-T3/L-T4 combined therapy is better in terms of the steady-state hormone concentrations (for a triiodothyronine setpoint at the upper limit of the reference range of healthy individuals). Finally, the results suggest that two daily intakes of L-T3 could be the best trade-off between stable hormone concentrations and inconveniences for the patient. Copyright © 2022 Wolff, Dietrich and Müller.
Treebanking and corpus annotation in LiLa
Creators: name: Cecchini, Flavio Massimiliano
Publisher: name: Zenodo
Year: 2023
Subjects: LiLa
Linguistic Linked Open Data
Latin
Treebanks
Syntax
Corpora

description: Presentation given on May 25th, 2023 at the LiLa Closing Event describing the modelling of syntactic information in the LiLa knowledge base.
Crowd Avoidance and Diversity in Socio-Economic Systems and Recommendation
Creators: name: Gualdi, Stanislao
name: Medo, Matus
name: Zhang, Yi-Cheng
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Recommender systems recommend objects regardless of potential adverse effects of their overcrowding. We address this shortcoming by introducing crowd-avoiding recommendation where each object can be shared by only a limited number of users or where object utility diminishes with the number of users sharing it. We use real data to show that contrary to expectations, the introduction of these constraints enhances recommendation accuracy and diversity even in systems where overcrowding is not detrimental. The observed accuracy improvements are explained in terms of removing potential bias of the recommendation method. We finally propose a way to model artificial socio-economic systems with crowd avoidance and obtain first analytical results.
description: 6 pages, 4 figures
Size effects in the long-time quasi-static heat transport
Creators: name: Panasyuk, George Y.
name: Yerkes, Kirk L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider finite size effects on heat transfer between thermal reservoirs mediated by a quantum system, where the number of modes in each reservoir is finite. Our approach is based on the generalized quantum Langevin equation and the thermal reservoirs are described as ensembles of oscillators within the Drude-Ullersma model. A general expression for the heat current between the thermal reservoirs in the long-time quasi-static regime, when an observation time is of the order of $Δ^{-1}$ and $Δ$ is the mode spacing constant of a thermal reservoir, is obtained. The resulting equations that govern the long-time relaxation for the mode temperatures and the average temperatures of the reservoirs are derived and approximate analytical solutions are found.
description: Accepted for publication in Phys. Rev. E
Anpassung der Teileitermethode auf 3-D-Freileitungsmodelle zur Berechnung der induktiven Beeinflussung
Creators: name: Wießner, Fabian
name: Derbel, Faouzi
name: Rückerl, Christian
Publisher: name: Frankfurt/Main : mesago
Year: 2018
Subjects: subject: Hochspannungsfreileitung
subject: Montageplanung
subject: Gefahrenpotenzial
subject: Arbeitsschutz
subject: Induktionsspannung
subject: dreidimensionales Modell
subject: mathematisches Verfahren
subject: Modellsimulation
subject: Berührungsspannung
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: Bei Montagearbeiten auf Freileitungsmasten in der Nähe von unter Spannung stehenden Leitern stellen die dabei auftretende induktive und kapazitive Beeinflussung durch elektrische und magnetische Felder eine Gefährdung für das Montagepersonal dar. Es wird eine Methode vorgestellt, mit der die Beeinflussung bei beliebig angeordneten Leiterstrukturen berechnet werden kann. Aus dem Berechnungsbeispiel wird deutlich, dass sich das vorgestellte Verfahren für die Berechnung von induzierten Spannungen von Hochspannungsfreileitungen eignet. Mit dem Modell kann der Einfluss von Erdungsmaßnahmen, Seilzugreihenfolge, Seilzugrichtung auf induzierte Spannungen (fließende Ströme) untersucht werden. Durch die Möglichkeit zur Berechnung der Berührungsspannung während des Seilzuges liefert das vorgestellte Berechnungsverfahren einen Beitrag zum Bewerten von möglichen Gefährdungspotenzialen beim Freileitungsbau oder anderen Montagearbeiten. Des Weiteren kann mit der 3-D-Teilleitermethode eine Vielzahl von andern Anwendungen berechnet werden, da durch die Möglichkeit des punktuellen sehr genauen Diskretisierens eine hohe Genauigkeit bei gleichzeitig überschaubarem Berechnungsaufwand möglich ist. Mögliche Anwendungsgebiete sind z.B. die Berechnung der Beeinflussung von Telekommunikationsanlagen oder die von Berechnung Stromwärmeverlusten durch Erdungsanlagen.
Impact of network topology on synchrony of oscillatory power grids
Creators: name: Rohden, Martin
name: Sorge, Andreas
name: Witthaut, Dirk
name: Timme, Marc
Publisher: name: arXiv
Year: 2013
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: Replacing conventional power sources by renewable sources in current power grids drastically alters their structure and functionality. The resulting grid will be far more decentralized with an distinctly different topology. Here we analyze the impact of grid topologies on spontaneous synchronization, considering regular, random and small-world topologies and focusing on the influence of decentralization. We employ the classic model of power grids modeling consumers and sources as second order oscillators. We first analyze the global dynamics of the simplest non-trivial (two-node) network that exhibit a synchronous (normal operation) state, a limit cycle (power outage) and coexistence of both. Second, we estimate stability thresholds for the collective dynamics of small network motifs, in particular star-like networks and regular grid motifs. For larger networks we numerically investigate decentralization scenarios finding that decentralization itself may support power grids in reaching stable synchrony for lower lines transmission capacities. Decentralization may thus be beneficial for power grids, regardless of their special resulting topology. Regular grids exhibit a specific transition behavior not found for random or small-world grids.
description: 19 pages, 9 figures
On geometric interpretation of the Aharonov-Bohm effect
Creators: name: Katanaev, M. O.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A geometric interpretation of the Aharonov--Bohm effect is given in terms of connections on principal fiber bundles. It is demonstrated that the principal fiber bundle can be trivial while the connection and its holonomy group are nontrivial. Therefore, the main role is played by geometric rather than topological effects.
description: 9 pages, 2 figures
ИСПЫТАНИЕ НЕФТЕМИНЕРАЛЬНОГО СВЯЗУЮЩЕГО НА ОСНОВЕ ПРОМЫСЛОВОГО НЕФТЕШЛАМА ПРИ ПРИГОТОВЛЕНИИ АСФАЛЬТОБЕТОНА
Creators: name: Тошматов, Д.А.
Publisher: name: Zenodo
Year: 2024

description: Сегодня в мире существует необходимость исследования по решению определенных проблем в современном производстве окисленных битумов, основной из которых является низкое качество сырья. Обоснова необходимость решения следующих научных задач: прежде всего изучение состава высоко парафинистого нефтяного сырья; оптимизирование процесса окисления тяжелых фракций нефтей; разработка универсальной технологической установки процесса получения связующих битумов с оптимальными качественными их показателями; утилизация высоко парафинированных нефтяных отходов.
MPEC 2023-L73 : 2023 LG1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 LG1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
A high-power 626 nm diode laser system for Beryllium ion trapping
Creators: name: Ball, H.
name: Lee, M. W.
name: Gensemer, S. D.
name: Biercuk, M. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe a high-power, frequency-tunable, external cavity diode laser (ECDL) system near 626 nm useful for laser cooling of trapped $^9$Be$^+$ ions. A commercial single-mode laser diode with rated power output of 170 mW at 635 nm is cooled to $\approx - 31$ C, and a single longitudinal mode is selected via the Littrow configuration. In our setup, involving multiple stages of thermoelectric cooling, we are able to obtain $\approx$130 mW near 626 nm, sufficient for efficient frequency doubling to the required Doppler cooling wavelengths near 313 nm in ionized Beryllium. In order to improve nonlinear frequency conversion efficiency, we achieve larger useful power via injection locking of a slave laser. In this way the entirety of the slave output power is available for frequency doubling, while analysis may be performed on the master output. We believe that this simple laser system addresses a key need in the ion trapping community and dramatically reduces the cost and complexity associated with Beryllium ion trapping experiments.
description: Related manuscripts available at http://www.physics.usyd.edu.au/~mbiercuk/Publications.html
Ein neues Verfahren zum MEMS-basierten Brückenmonitoring - Zielsetzung und Statusbericht
Creators: name: Kemkes, Eva
name: Rüffer, Jürgen
name: Omidalizarandi, Mohammad
name: Diener, Dmitri
name: Paffenholz, Jens-André
name: Neumann, Ingo
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2019
Subjects: subject: MEMS
subject: Beschleunigungssensoren
subject: Brückenmonitoring
subject: Low-Cost
subject: Konferenzschrift
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::380 | Handel, Kommunikation, Verkehr
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::624 | Ingenieurbau und Umwelttechnik

description: Das Thema "Marode Brücken in Deutschland" gerät in (un-)regelmäßigem Abstand immer wieder in den Fokus der deutschen Nachrichten. Als grundlegende Ursache gilt die alternde Bausubstanz sowie der zunehmende Schwerlastverkehr, der bei dem Bau der meisten Brücken nicht einkalkuliert wurde. Mit steigender Aktualität und Dringlichkeit der Thematik nimmt die Bedeutung eines Geomonitorings zur Überwachung von Bewegungen und Deformationen weiter zu. Neben den meist sehr kostenintensiven geodätischen Sensoren wie beispielsweise einem Tachymeter bilden auch sogenannte Low-Cost-Sensoren eine Möglichkeit, Brückenbauwerke zu überwachen. In einem von der ZIM-Initiative des Bundesministeriums für Wirtschaft und Energie geförderten Projekt wird sich dieser Thematik gewidmet. Ziel ist es, mikroelektromechanische Systeme (MEMS) für die Detektion von schädigungsrelevanten Bauwerksparametern auf ihre Tauglichkeit dafür zu prüfen und diese wenn möglich einzusetzen. Angefangen bei der Entwicklung von Sensoren mit einem MEMS-Beschleunigungssensor als Kernstück, über Kalibrierungen und Testmessungen unter Laborbedingungen bis hin zu Messungen an einem realen Brückenbauwerk, wurde ein Mess- und Auswerteverfahren entwickelt und validiert. Derzeit wird es Schritt für Schritt verbessert.
Effects of CDTT Model on the Dynamical Instability of Cylindrically Symmetric Collapsing Stars
Creators: name: Kausar, Hafiza Rizwana
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We assume cylindrically symmetric stars which begin collapsing by dissipating energy in the form of heat flux. We wish to study the effects of Carroll-Duvvuri-Trodden-Turner (CDTT) model, $f(R)=R+σ\frac{μ^4}{R}$, on the range of dynamical instability. For this purpose, perturbation scheme is applied to all the metric functions, material functions and $f(R)$ model to obtain the full set of dynamical equation which control the evolution of the physical variables at the surface of a star. It is found that instability limit involves adiabatic index $Γ$ which depends on the density profile and immense terms of perturbed CDTT model. In addition, model is constrained by some requirement, e.g. positivity of physical quantities. We also reduce our results asymptotically as $μ\rightarrow0$, being the GR results in both the Newtonian and post Newtonian regimes.
description: 21 pages, no figure, Accepted for publication in JCAP
Resonant bands and local system cohomology groups for real line arrangements
Creators: name: Yoshinaga, Masahiko
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We give a new algorithm computing local system cohomology groups for complexified real line arrangements. Using it, we obtain several conditions for the first local system cohomology to vanish and to be at most one-dimensional, which generalize a result by Cohen-Dimca-Orlik. The conditions are described in terms of discrete geometric structures of real figures. The proof is based on a recent study on minimal cell structures. We also compute the characteristic variety of the deleted $B_3$-arrangement.
description: 19 pages. arXiv admin note: substantial text overlap with arXiv:1301.1430
Modeling spacecraft oscillations in hrsc images of mars express
Creators: name: Bostelmann, Jonas
name: Heipke, Christian
Publisher: name: Katlenburg-Lindau : Copernicus Publications
Year: 2011
Subjects: subject: Bundle Adjustment
subject: Multi-Line Camera
subject: HRSC
subject: Planetary Imagery
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Since January 2004 the High Resolution Stereo Camera (HRSC) is mapping planet Mars. The multi-line sensor on board the ESA Mission Mars Express images the Martian surface with a resolution of up to 1 2 m per pixel in three dimensions and in color. As part of the Photogrammetric/Cartographic Working Group of the HRSC Science Team the Institute of Photogrammetry and GeoInformation (IPI) of the Leibniz Universitat Hannover is involved in photogrammetrically processing the HRSC image data. To derive high quality 3D surface models, color orthoimages or other products, the accuracy of the observed position and attitude information in many cases should be improved. This is carried out via a bundle adjustment. In a considerable number of orbits the results of the bundle adjustment are disturbed by high frequency oscillations. This paper describes the impact of the high frequency angular spacecraft movement to the processing results of the last seven years of image acquisition and how the quality of the HRSC data products is significantly improved by modeling these oscillations.
Annihilation rate of $2^{-+}$ charmonium and bottomonium
Creators: name: Wang, Tianhong
name: Wang, Guo-Li
name: Ju, Wan-Li
name: Jiang, Yue
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The $1^1D_2 (c\bar c)$ state is the ground state of spin-singlet D-wave charmonia. Although it has not been found yet, the experimental data accumulate rapidly. This charmonium attracts more and more attention, especially when the BaBar Collaboration finds that the X(3872) particle has negative parity. In this paper we calculate the double-gamma and double-gluon annihilation processes of $^1D_2$ charmonia and bottomonia by using the instantaneous Bethe-Salpeter method. We find the relativistic corrections make the decay widths of $1^1D_2 (c\bar c)$ 2$\sim$5 times smaller than the non-relativistic results. If this state is below the $D^0{D^{0}}^\ast$ threshold, we can use the sum of annihilation widths and EM transition widths to estimate the total decay width. Our result for $1{^1D_2} (c\bar c)$ with $m=3820$ GeV is $Γ= 432$ keV. The dominant decay channel $1^1D_2 (c\bar c)\to h_c γ$, whose branching ratio is about 90%, can be used to discover this state.
description: 10 pages, 2 figures
IDV Observations & Study of the Quasar 0917+624
Creators: name: Liu, Xiang
name: Li, Quanwei
name: Krichbaum, Thomas P.
name: Aller, Margo F.
name: Aller, Hugh D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We carried out intra-day variability (IDV) observations from August 2005 to January 2010 with the Urumqi 25m radio telescope for a dozen IDV sources including the quasar 0917+624. This target exhibited pronounced centimeter-band, intra-day variability during the 1980s--1990s, but its strong IDV phase ceased in 2000. The source showed no IDV in the majority of the Urumqi observing sessions, although weak IDV activity was detected in some. Multifrequency UMRAO data for 0917+624 show that the spectral index is steeper during the weak and non-IDV phases than during the strong IDV phase, supporting the idea that the size of the scintillating component may be enlarged in the weak/non IDV phases.
description: 4 pages, 2 figures, accepted for publication in Astrophysics and Space Science
Contribution to the industry-specific identification and selection of a business model in machinery and equipment industry
Creators: name: Doerr, David Maximilian
name: Bauernhansl, Thomas
Publisher: name: Hannover : publish-Ing.
Year: 2020
Subjects: subject: Industry 4.0
subject: business model
subject: machinery and equipment industry
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Industry 4.0 introduces a paradigm shift that will lead to changes of business models in many e. Today, industrial companies are gradually transforming their traditional and transaction-based business models into new business models made possible by cyber-physical systems. New business models such as as-a-service or platform-based business models emerge. This change brings enormous opportunities, but also many risks for the manufacturing industry. Many companies are faced with the problem of choosing from the multitude of new business models. The business model development to be found in literature primarily follows the needs of the customer. Machinery and equipment industry is a particularly interesting sector since more than 50% of the customers in machinery and equipment industry come from the same sector. This paper develops a process model for the industry-specific selection of business models. The model includes the following questions: Which business models can be selected in the field of machinery and equipment industry? Which possible goals can be pursued with the respective business models? Which criteria are useful for deciding on the respective business model?
Are MOF membranes better than those made of zeolites?
Creators: name: Caro, Jürgen
Publisher: name: London : Elsevier Ltd.
Year: 2012
Subjects: subject: Gas separation
subject: MOF membrane
subject: Molecular sieve membrane
subject: Zeolite membrane
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [No abstract available]
MPEC 2023-L74 : 2023 LH1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 LH1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Evaluation and FMEA of Fabrication Techniques for Metallic Grating Couplers on Polymer Substrates with Low Glass Transition Temperatures
Creators: name: Gribaa, Wejdene
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2016
Subjects: subject: Grating couplers
subject: Fabrication
subject: Polymeric devices
subject: Gitterkoppler
subject: Optische Sensorik
subject: Produktion
subject: Polymere
subject: Gitterkoppler
subject: Sensortechnik
subject: Werkstoffkunde
subject: Produktionstechnik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: The main task is to analyze the state of the art of grating couplers production and low-cost polymer substrates. Then to provide a recommendation of a new or adapted process for the production of metallic gratings on polymer sheets, based on a Failure Mode and Effect Analysis (FMEA). In order to achieve that, this thesis is divided into four chapters. After the first introductory chapter, the second section provides details about the state-of-the-art in optical technology platforms with focus on polymers and their main features for the aimed application, such as flexibility, low cost and roll to roll compatibility. It defines then the diffraction gratings and their specifications and closes with the explanation of adhesion mechanisms of inorganic materials on polymer substrates. The third chapter discusses processing of grating couplers. It introduces the basic fabrication methods and details a selection of current fabrication schemes found in literature with an assessment of their potential use for the desired application. The last chapter is a FMEA analysis of the retained fabrication process, called Flip and Fuse, in order to check its capability to realize the grating structure.
Electron-electron correlations in a dynamical impurity system with a Fermi edge singularity
Creators: name: Snyman, I.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study spatial correlations in the ground state of a one-dimensional electron gas coupled to a dynamic quantum impurity. The system displays a non-trivial many-body effect known as the Fermi edge singularity: transitions between discrete internal states of the impurity have a power-law dependence on the internal energies of the impurity states. We present compact formulas for the static current-current correlator and the pair correlation function. These reveal that spatial correlations induced by the impurity decay slowly (as the third inverse power of distance) and have a power-law energy dependence, characteristic of the Fermi edge singularity.
description: 9 pages
Darstellung und Kristallstruktur von Nd2SeSiO4
Creators: name: Grupe, M.
name: Urland, W.
Publisher: name: Berlin : De Gruyter
Year: 1990
Subjects: subject: Crystal Structure of Nd2SeSiO4
subject: Synthesis
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Nd2SeSiO4 has been prepared as violet rod-like single crystals by reaction of elemental neodymium, selenium and iodine in the ratio 1.0:1.0:2.5 and subsequent reaction with quartz glass powder. The compound crystallizes in the orthorhombic space group Pbcm with a = 618.2(2), b = 717.4(2), c = 1102.4(2) pm and Z = 4. The structure is built up of alternating NdSe- and NdSiO4-sheets.
A new approach to hom-Lie bialgebras
Creators: name: Sheng, Yunhe
name: Bai, Chengming
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: Rings and Algebras (math.RA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this paper, we introduce a new definition of a hom-Lie bialgebra, which is equivalent to a Manin triple of hom-Lie algebras. We also introduce a notion of an $\mathcal O$-operator and then construct solutions of the classical hom-Yang-Baxter equation in terms of $\mathcal O$-operators and hom-left-symmetric algebras.
Analysis of experimental biosensor/FIA lactose measurements
Creators: name: Ferreira, L.S.
name: Souza, M.B.
name: Trierweiler, J.O.
name: Hitzmann, B.
name: Folly, R.O.M.
Publisher: name: Sao Paulo : Brazilian Soc. Chemical Eng.
Year: 2003
Subjects: subject: biosensor
subject: fia
subject: neural networks
subject: beta-galactosidase
subject: flow-injection analysis
subject: glucose
subject: components
subject: sucrose
subject: system
subject: sensor
subject: milk
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Whey is an abundant effluent in the production of cheese and casein. The biotechnological utilization of this economically important and nutritive source is limited mainly because of the presence of high percentages of lactose. This disaccharide has poor solubility, which can cause crystallization and insufficient sweetness in dairy food; additionally, part of the adult population suffers from associated lactose intolerance diseases. There are several methods to determine lactose such as spectrophotometry, polarimetry, infrared spectroscopy, titrimetry and chromatography. However these methods are tedious and time-consuming due to long sample preparation. These disadvantages stimulated the development of an enzymatic lactose biosensor. It employs two immobilized enzymes, beta-galactosidase and glucose oxidase and the quantitative analysis of lactose is based on determination of oxygen consumption in the enzymatic reaction. The influence of temperature on the biosensor signal was 'experimentally studied. It was observed that a nonlinear relationship exists between the electric response of the biosensor - provided by CAFCA (Computer Assisted Flow Control & Analysis - ANASYSCON, Hannover) - and lactose concentration. In this work, attempts were made to correlate these variables using a simple nonlinear model and multilayered neural networks, with the latter providing the best modeling of the experimental data.
Polymer translocation under time-dependent driving forces: resonant activation induced by attractive polymer-pore interactions
Creators: name: Ikonen, Timo
name: Shin, Jaeoh
name: Ala-Nissila, Tapio
name: Sung, Wokyung
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the driven translocation of polymers under time-dependent driving forces using $N$-particle Langevin dynamics simulations. We consider the force to be either sinusoidally oscillating in time or dichotomic noise with exponential correlation time, to mimic both plausible experimental setups and naturally occurring biological conditions. In addition, we consider both the case of purely repulsive polymer-pore interactions and the case with additional attractive polymer-pore interactions, typically occurring inside biological pores. We find that the nature of the interaction fundamentally affects the translocation dynamics. For the non-attractive pore, the translocation time crosses over to a fast translocation regime as the frequency of the driving force decreases. In the attractive pore case, because of a free energy well induced inside the pore, the translocation time can be a minimum at the optimal frequency of the force, the so-called resonant activation. In the latter case, we examine the effect of various physical parameters on the resonant activation, and explain our observations using simple theoretical arguments.
description: 17 pages, 19 figures
title: Herausforderungen aus der Praxis der Sexualbegleitung in der Arbeit mit älteren Menschen und Menschen mit Behinderungen
Creators: name: Haslinger, Selma
Year: 2023

description: Als wissenschaftlichen Gegenstand behandelt diese Forschungsarbeit Sexualbegleitung, eine Form der Sexarbeit. Sexualbegleitung kann dazu beitragen, eine erfüllte und selbstbestimmte Sexualität zu ermöglichen. Dennoch wird das Erbringen sexueller Dienstleistungen häufig stigmatisiert. Eruiert wird die Frage, welche Herausforderungen Sexualbegleiter:innen in Österreich durch die Arbeit mit alten Menschen und Menschen mit Behinderungen sichtbar machen. Dies geschieht methodisch durch die Durchführung semistrukturierter Expert:innen-Interviews. Behandelt wird, an wen sich das Angebot richtet und wie Sexualbegleitung weitergedacht werden kann. Die offengelegten Herausforderungen beziehen sich auf persönliche, gesellschaftliche sowie rechtliche Ebenen und umfassen unter anderem mangelnde Selbstbestimmung, Diskriminierung und Kriminalisierung der Sexarbeit. Auf Grundlage dieser Erkenntnisse werden Forderungen abgeleitet und mit den Empfehlungen von Nichtregierungsorganisationen verglichen.
description: This research focuses on sexual surrogacy, a form of sex work, as the subject of scientific inquiry. Sexual surrogacy can contribute to enabling a fulfilling and self-determined sexuality. However, providing sexual services continues to face stigma. The research aims to explore the challenges revealed by sexual surrogates in their work with elderly individuals and people with disabilities in Austria. Methodologically, this exploration is carried out through semi-structured expert interviews. The discussions revolve around the target audience of these services and how sexual surrogacy can be further conceptualized. The challenges that emerge encompass personal, social, and legal dimensions, including issues such as limited self-determination, discrimination, and the criminalization of sex work. From these findings, certain demands are formulated and compared with recommendations put forth by Non-Governmental Organizations.
title: Tertiärsprachendidaktik in Taiwan
Creators: name: Berger, Melanie
Year: 2023

description: Die vorliegende Masterarbeit ist im Feld der Sprachlernforschung und der Tertiärsprachendidaktik verortet und beschäftigt sich mit der praktischen Umsetzung tertiärsprachendidaktischer Ansätze im DaF-Unterricht mit chinesischsprachigen Lernenden. Deutsch wird heutzutage meist als zweite oder weitere Fremdsprache nach Englisch als sogenannte Tertiärsprache bzw. Drittsprache erlernt. Ziel der Arbeit ist einerseits die Auseinandersetzung mit potenziellen Anwendungsmöglichkeiten für den Einbezug vorhandener Sprachlernerfahrungen unter Berücksichtigung der Sprachkonstellation Chinesisch – Englisch – Deutsch. Andererseits soll der DaF-Unterricht an einer taiwanischen Universität hinsichtlich dieses Einbezugs untersucht werden. Um die Forschungsfrage, ob tertiärsprachendidaktische Ansätze im Unterricht erkennbar sind, zu beantworten, wurde Unterricht im authentischen Feld mithilfe eines Beobachtungsinstruments untersucht. Die verbalen Daten wurden zum Teil transkribiert und die Nachweise anschließend entlang der Haupt- und Subkategorien analysiert. Die empirische Untersuchung konnte zeigen, dass die vorangegangenen Sprachlernerfahrungen der Lernenden im Unterricht berücksichtigt werden und Englisch als Brückensprache zwischen L1 und L3 zur Ökonomisierung des Lernprozesses herangezogen wird.
Statistical Power of Piecewise Regression Analyses of Single-Case Experimental Studies Addressing Behavior Problems
Creators: name: Wilbert, Jürgen
name: Börnert-Ringleb, Moritz
name: Lüke, Timo
Publisher: name: Lausanne : Frontiers Media
Year: 2022
Subjects: subject: behavior problems
subject: Monte-Carlo simulation
subject: research design
subject: single case analysis
subject: single-case design
subject: single-case experimental design
subject: special education
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen

description: In intervention research, single-case experimental designs are an important way to gain insights into the causes of individual changes that yield high internal validity. They are commonly applied to examine the effectiveness of classroom-based interventions to reduce problem behavior in schools. At the same time, there is no consensus on good design characteristics of single-case experimental designs when dealing with behavioral problems in schools. Moreover, specific challenges arise concerning appropriate approaches to analyzing behavioral data. Our study addresses the interplay between the test power of piecewise regression analysis and important design specifications of single-case research designs. Here, we focus on the influence of the following specifications of single-case research designs: number of measurement times, the initial frequency of the behavior, intervention effect, and data trend. We conducted a Monte-Carlo study. First, simulated datasets were created with specific design conditions based on reviews of published single-case intervention studies. Following, data were analyzed using piecewise Poisson-regression models, and the influence of specific design specifications on the test power was investigated. Our results indicate that piecewise regressions have a high potential of adequately identifying the effects of interventions for single-case studies. At the same time, test power is strongly related to the specific design specifications of the single-case study: Few measurement times, especially in phase A, and low initial frequencies of the behavior make it impossible to detect even large intervention effects. Research designs with a high number of measurement times show robust power. The insights gained are highly relevant for researchers in the field, as decisions during the early stage of conceptualizing and planning single-case experimental design studies may impact the chance to identify an existing intervention effect during the research process correctly. Copyright © 2022 Wilbert, Börnert-Ringleb and Lüke.
First-principles calculations of the structural, electronic, optical and elastic properties of the CuYS2 semiconductor
Creators: name: Brik, M. G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ternary semiconductor CuYS2 is studied by using the first-principles methods in the density functional theory (DFT) framework. The structural, electronic, optical and elastic properties were calculated at the ambient and elevated hydrostatic pressures. The compound was shown to have an indirect band gap of about 1.342/1.389 eV (in the generalized gradient and local density approximations). The anisotropy of the optical properties was studied by calculating the absorption spectra, dielectric function and index of refraction for different polarizations. The anisotropy of the elastic properties was visualized by plotting the three-dimensional dependence of the Young's moduli on the direction in the crystal lattice. The obtained results, which are reported for the first time to the best of the author's knowledge, can facilitate assessment of possible applications of the title material.
title: Klimafreundliche Fahrrad-Mobilität - Umsetzungspotentiale aktueller Stadtentwicklungskonzepte im 10. Wiener Gemeindebezirk
Creators: name: Angermann, David
Year: 2023

description: Besondere Aufmerksamkeit im Diskurs um nachhaltige Stadtentwicklung liegt auf der nachhaltigen Mobilität, da die Themen eng miteinander verbunden sind. In diesem Sinne beschäftigen sich große Städte, wie Wien, mit den Konzepten „Stadt der kurzen Wege“ und „Smart City“, die einen umfassenden Blick auf alle Bereiche der städtischen Strukturen haben und diese nachhaltig ausgestalten wollen. Der Bereich der Mobilität ist ein wichtiger Teil in diesen Konzepten. Hierbei geht es vor allem um die Strategien für eine nachhaltigere urbane Mobilität, um eine Wende, von Mobilitätssystemen, welche von fossilen Treibstoffen und motorisierten Individualverkehr dominiert werden, hin zu ökologisch- und sozialverträglichen Alternativen, zu schaffen. Diese Perspektive wurde in vorliegender Arbeit gemeinsam mit der Theorie zu einer nachhaltigen Stadtentwicklung und Mobilität, der Verkehrs- und Mobilitätswende und den Strategien zu nachhaltiger Mobilität, der Verkehrsvermeidung, der Verkehrsverlagerung und der umweltfreundlichen Gestaltung, analysiert. Der Fokus der Analyse liegt dabei auf der Fahrradmobilität. Behandelt werden vor allem Fragen zu Maßnahmen und Strategien für mehr Radverkehr, Verbesserungsmöglichkeiten der Infrastruktur sowie Herausforderungen und Umsetzungspotenziale. Diese Fragen wurde anhand des Fallbeispiels der Stadt Wien und dessen Strategiedokumente und des 10. Wiener Gemeindebezirks Favoriten untersucht. Dazu wurden aktuelle Konzepte der Stadt Wien mittels qualitativer Inhaltsanalyse nach Mayring analysiert und leitfadengestützte Expert*inneninterviews durchgeführt. Die Ergebnisse zeigen, dass die Schwerpunkte der Konzepte der Stadt Wien im Mobilitätssektor auf technische Innovationen, Verkehrsverlagerung und Verkehrsorganisation gelegt werden. Es ist auch zu erkennen, dass viele Projekte zur Stärkung und Verbesserung des Umweltverbundes (Öffentlicher Verkehr, Radfahren, Zufußgehen) umgesetzt und geplant werden, jedoch es noch große Herausforderungen und viel Potenzial gibt die Ziele in der Verkehrsverlagerung zu erreichen und umzusetzen.
Cytoplasmic Injection of Zygotes to Genome Edit Naturally Occurring Sequence Variants Into Bovine Embryos
Creators: name: Wei, Jingwei
name: Brophy, Brigid
name: Cole, Sally-Ann
name: Moormann, Jannis
name: Boch, Jens
name: Laible, Gӧtz
Publisher: name: Lausanne : Frontiers Media
Year: 2022
Subjects: subject: Cas9
subject: cattle
subject: genome editing
subject: homology-directed repair
subject: PMEL
subject: PRLR
subject: slick
subject: TALEN
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Genome editing provides opportunities to improve current cattle breeding strategies through targeted introduction of natural sequence variants, accelerating genetic gain. This can be achieved by harnessing homology-directed repair mechanisms following editor-induced cleavage of the genome in the presence of a repair template. Introducing the genome editors into zygotes and editing in embryos has the advantage of uncompromised development into live animals and alignment with contemporary embryo-based improvement practices. In our study, we investigated the potential to introduce sequence variants, known from the pre-melanosomal protein 17 (PMEL) and prolactin receptor (PRLR) genes, and produce non-mosaic, edited embryos, completely converted into the precision genotype. Injection of gRNA/Cas9 editors into bovine zygotes to introduce a 3 bp deletion variant into the PMEL gene produced up to 11% fully converted embryos. The conversion rate was increased to up to 48% with the use of TALEN but only when delivered by plasmid. Testing three gRNA/Cas9 editors in the context of several known PRLR sequence variants, different repair template designs and delivery as DNA, RNA or ribonucleoprotein achieved full conversion rates up to 8%. Furthermore, we developed a biopsy-based screening strategy for non-mosaic embryos which has the potential for exclusively producing non-mosaic animals with intended precision edits. Copyright © 2022 Wei, Brophy, Cole, Moormann, Boch and Laible.