cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Untersuchungen zur aberranten DNA-Methylierung in humanen myeloischen Neoplasien mit Hilfe hochauflösender quantitativer Analysemethoden
Creators: name: Brakensiek, Kai
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2006
Subjects: subject: DNA-Hypermethylierung
subject: myeloische Neoplasien
subject: quantitative Methylierungsanalyse
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
The Hamiltonians generating one-dimensional discrete-time quantum walks
Creators: name: Tate, Tatsuya
Publisher: name: arXiv
Year: 2013
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 60F05, 81Q99

description: An explicit formula of the Hamiltonians generating one-dimensional discrete-time quantum walks is given. The formula is deduced by using the algebraic structure introduced previously. The square of the Hamiltonian turns out to be an operator without, essentially, the `coin register', and hence it can be compared with the one-dimensional continuous-time quantum walk. It is shown that, under a limit with respect to a parameter, which expresses the magnitude of the diagonal components of the unitary matrix defining the discrete-time quantum walks, the one-dimensional continuous-time quantum walk is obtained from operators defined through the Hamiltonians of the one-dimensional discrete-time quantum walks. Thus, this result can be regarded, in one-dimension, as a partial answer to a problem proposed by Ambainis.
description: 9 pages
Well-posedness of some initial-boundary-value problems for dynamo-generated poloidal magnetic fields
Creators: name: Kaiser, Ralf
name: Uecker, Hannes
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Given a bounded domain $G \subset \R^d$, $d\geq 3$, we study smooth solutions of a linear parabolic equation with non-constant coefficients in $G$, which at the boundary have to $C^1$-match with some harmonic function in $\R^d \setminus \ov{G}$ vanishing at spatial infinity. This problem arises in the framework of magnetohydrodynamics if certain dynamo-generated magnetic fields are considered: For example, in the case of axisymmetry or for non-radial flow fields, the poloidal scalar of the magnetic field solves the above problem. We first investigate the Poisson problem in $G$ with the above described boundary condition as well as the associated eigenvalue problem and prove the existence of smooth solutions. As a by-product we obtain the completeness of the well-known poloidal "free decay modes" in $\R^3$ if $G$ is a ball. Smooth solutions of the evolution problem are then obtained by Galerkin approximation based on these eigenfunctions.
description: Corrected version
Coherent structures and rotational effects on the flow over spinners of horizontal axis wind turbines
Creators: name: Lin, Shy-Yea
Publisher: name: Hannover : Institut für Turbomaschinen und Fluid-Dynamik
Year: 2016
Subjects: subject: Wind turbine aerodynamics
subject: rotational effects
subject: coherent structures
subject: Aerodynamik der Windenergieanlage
subject: Rotationseffekte
subject: kohärente Strukturen
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Three-dimensional effects due to rotation which decrease the accuracy of predicting the wind turbine aerodynamic performance, are correlated with coherent structures near the blade roots, specifically with the flow separation. This study aims to give an insight into the complex coherent structures and the 3D rotational effects on the flow over spinners of horizontal axis wind turbines. The flow fields for the identification of the coherent structures and the 3D rotational effects are obtained by solving the Reynolds-averaged Navier-Stokes equations. The complex coherent structures, dominated by viscous shear layers are identified in this study by using various vortex detection methods. The coherent structures near the blade roots of the baseline wind turbine include helical root vortices, trailing edge vortices, flow separation with significant radial flows, von Kármán vortex streets, pairs of counter-rotating base vortices, horseshoe vortices, and a low-speed nacelle wake. The correlation between the helical root vortex and the blade-bound circulation is verified. The dominant sources responsible for the 3D rotational effect on attached and detached boundary layers are estimated by means of order of magnitude analysis. The 3D rotational effect on the baseline wind turbine results in lift augmentation, drag reduction, and significant radial flows in the flow separation region. The significant radial velocity components in the flow separation region are predictable, and substantially driven by the centrifugal acceleration. The Coriolis acceleration in the chordwise direction, induced by these significant radial velocity components in the bottom of the detached boundary layer, is balanced by a pressure gradient in the chordwise direction. This pressure gradient in the chordwise direction over the rotating blade agree well with the analytical expression derived in this study. The separation point is determined accurately in this study by a new criterion based on skin friction coefficients. The limited shift of separation points on the rotating blade, either towards the trailing edge or leading edge, indicates different effects due to rotation on the attached and detached boundary layers.
Messtechnische Bestimmung der Impedanz von Elektrofahrzeugen im konduktiven Ladebetrieb
Creators: name: Kleinen, Michael
name: Jeschke, Sebastian
name: Olbrich, Marcel
name: Bärenfänger, Jörg
name: Bünnemann, Jonas
Publisher: name: Aachen : Apprimus
Year: 2022
Subjects: subject: EMV
subject: Verträglichkeit
subject: Elektromagnetik
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: Im Zuge der fortschreitenden Entwicklungen hin zu einer klimaneutralen Mobilität, verbunden mit dem geplanten Ausstieg aus der Neuzulassung von Verbrennerfahrzeugen, gewinnt die Elektromobilität zunehmend an Bedeutung [1]. Für die elektromagnetische Verträglichkeit ist das konduktive Laden von Elektrofahrzeugen ein Teilaspekt, der besonders im Hinblick auf die Emissionen während des Ladevorgangs betrachtet werden muss [2]. Hierbei ist es für eine Bewertung sehr hilfreich, die Systemimpedanzen durch Messungen bestimmen zu können, um eine Aussage über potentiell kritische Frequenzbereiche treffen zu können. Um diese Messung in-situ, also ohne Eingriff oder Modifizierung der Systeme durchführen zu können, sind insbesondere kontaktlose Verfahren von Vorteil. In dieser Arbeit wird ein Messsystem beschrieben, mit dem die Gleichtaktimpedanzen eines Ladesystems zwischen 9 kHz und 30 MHz während des aktiven Schnellladevorgangs gemessen werden können, um eine Abschätzung für die Emissionen zu erhalten. Der Frequenzbereich ist dabei in Abhängigkeit der Leitungslängen des Systems eingeschränkt, da sich durch elektrisch lange Systeme aufgrund der Leitungstransformation die gemessenen Impedanzen von tatsächlich vorhandenen Impedanzen der Ladesäule bzw. des Fahrzeugs unterscheiden. Eine Länge des Ladesystems von 1 m würde bei einer Frequenz von 30 MHz einer zehntel Wellenlänge im Vakuum entsprechen, ab der Leitungseffekte nicht mehr vernachlässigbar sind. Da dies für ein Ladesystem eine kurze Strecke darstellt, ist der Frequenzbereich mit bis zu 30 MHz relativ hoch angesetzt und muss bei der Bestimmung der Impedanz einzelner Systeme berücksichtigt werden. Das Messprinzip beruht auf dem Einsatz eines Ferritkerns als Transformator, bei dem das zu messende System als Sekundärseite mit einer Wicklung betrachtet wird. Da während des Ladebetriebs hohe Ströme fließen, werden potentielle Sättigungseffekte abgeschätzt und der Fokus in dieser Arbeit wegen der geringeren niederfrequenten Ströme zunächst auf die Bestimmung der Gleichtaktimpedanz gelegt. Die Kenntnis der Gleichtaktimpedanz ermöglicht dabei eine erste Abschätzung leitungsgeführter und gestrahlter Störemissionen des Gesamtsystems.
Identification of factors limiting fruit set in tomato (Solanum lycopersicum L.) with the aim of genetic improvement of heat tolerance
Creators: name: Mitterbauer, Esther
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2008
Subjects: subject: Tomato
subject: heat stress
subject: pollen
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: [no abstract]
Computer-Aided Analysis of Video Comments for Requirements Analysis
Creators: name: Kristo, Eklekta
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover, Institut für Praktische Informatik
Year: 2021
Subjects: subject: Vision Video
subject: Comments
subject: Analysis
subject: Machine Learning
subject: Requirements Analysis
subject: Feedback
subject: Kommentare
subject: Analyse
subject: Maschinelles Lernen
subject: Anforderungsanalyse
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: In dieser Arbeit werden Anforderungen für die Anforderungsanalyse aus den Youtube Kommentaren von vision videos extrahiert. Der Prozess der Erstellung und Vorbereitung eines Datensatzes wird beschrieben und die Güte von verschiedenen automatisierten Ansätzen wird evaluiert. Die YouTube API wird benutzt um Kommentare zu extrahieren, diese werden dann in Spam bzw. Ham kategorisiert. Die manuelle Klassifikation ist nötig um die Ergebnisse der automatischen zu verifizieren. Um Einsichten in die relevanten Kommentar zu erhalten und spezifischere Kategorien zu finden werden word clouds benutzt. Die gefundenen Kategorien sind Feature Request, Flaw Report, Safety Related, Efficiency Related und manchmal Questions. Für die automatische Klassifikation in die Kategorien Spam / Ham werden die Algorithmen Random Forest, Support Vector Machine, Linear Regression Classifier, Naive Bayes und ein Voting Classifier welcher die ersten drei kombiniert benutzt. Für die Klassifizierung in spezifische Kategorien wird ebenfalls der Voting Classifier verwendet. Für die Analyse der Stimmung werden TextBlob und SentiStrength, und um die relevanten Kommentare zusammenzufassen wird SumBasic benutzt.
description: In this thesis requirements suitable for requirements engineering are extracted from comments below vision videos on the platform YouTube. The process of creating and preparing a dataset is described and the performance of different automated approaches is evaluated. The YouTube API is used to extract the comments, that are then classified into the categories Spam / Ham according to their content and sentiment. The manual classification is necessary to evaluate the results of the automated one. Word clouds are used to get an insight into the content of the relevant comments and decide on more specific categories to classify them according to their content. More specifically the categories Feature Request, Flaw Report, Safety Related, Efficiency Related and sometimes Questions are found. For the automated classification into the categories Spam / Ham the algorithms Random Forest, Support Vector Machine, Linear Regression Classifier, Naive Bayes, and a Voting Classifier that combines the first three are used. To classify comments according to their sentiment TextBlob and SentiStrength are used. For the classification into specific categories, the Voting Classifier is used again. The SumBasic algorithm is used to summarize the relevant comments.
Equisetum arvense L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. arvense L. Cat. 54 und 423. Vgl.Söllner Lit. 1954,S.236ff. Ssp. commune Gaudin (ssp. arvum [Schur] Correns; C. arvense L. s. str.). - Verbreitet. Ssp. strictum (Hänke) Gaudin - Bis 3130 m. - l: Sex du Coeur (J.); Linleux (J.); Col d'Emaney (J-); Col de la Gueulaz (J.). - 2: Branson (P.). - 3: Ob Liddes (R. Chodat); Bourg-St-Pierre (idem); Valsorey (Guyot); Mont de Proz (Melly); Val de Bagnes (Binz); Val des Dix (J.); Visp- Stalden (P.; Beauverd, var. viscidulum); Visp-Visperterminen (Schinz); Törbel (Stebler); Zermatt, hohe Stellen: Gornergrat, 3130 m (Braun-Blanquet 1919, var. viscidulum), Oberrothorn, 3105m (Braun-Blanquet 1919), ebenda 3120 m (Gilomen 1938); Saastal vielfach, bis 3100 m, oft als var. viscidulum (A. Keller). - 4: Aletschwald (Schröter); Binntal, mehrfach (J., Binz). Var. alpestre Chenev. - 2: Tassonnieres (P.). -3: Südhang des Kleinen Allalinhorns bei der Britanniahütte (Saas), 3030-3050m (D. Dutoit). -4: Ob Gletsch (P.). Var. viscidulum Gremli - l: Geschiebe der Rhone zwischen Dorénaz und dem Follatères-Sporn (Favarger und Söllner). - 2: Unterhalb Buitonnaz (ob Fully), 920 m (Favarger und Söllner); Raron (P.). - 3: La Pierraz am Gr. St.Bernhard (Melly); Fionnay im Val de Bagnes (Goudet); Turtmanntal (J.); Arschkummen ob der oberen Täschalp(Haber); siehe ferner vorstehend,unter der Unterart. - 4: Kummen-Ritterpass im Binntal (Binz).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
The Fractional Ionization of the Warm Neutral Interstellar Medium
Creators: name: Jenkins, Edward B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: When the neutral interstellar medium is exposed to EUV and soft X ray radiation, the argon atoms in it are far more susceptible to being ionized than the hydrogen atoms. We make use of this fact to determine the level of ionization in the nearby, warm, neutral medium (WNM). By analyzing FUSE observations of ultraviolet spectra of 44 hot subdwarf stars a few hundred pc away from the Sun, we can compare column densities of Ar I to those of O I, where the relative ionization of oxygen can be used as a proxy for that of hydrogen. The measured deficiency [ Ar I/O I]= 0.427+/- 0.11dex below the expectation for a fully neutral medium implies that the electron density n(e) \sim 0.04cm^- 3 if n(H)=0.5cm^- 3. This amount of ionization is considerably larger than what we expect from primary photoionizations resulting from cosmic rays, the diffuse X-ray background, and X-ray emitting sources within the medium, along with the additional ionizations caused by energetic secondary photoelectrons, Auger electrons, and photons from helium recombinations. We favor an explanation that bursts of radiation created by previous, nearby supernova remnants that have faded by now may have elevated the ionization, and the gas has not yet recombined to a quiescent level. A different alternative is that the low energy portion of the soft X ray background is poorly shielded by the H I because it is frothy and has internal pockets of very hot, X-ray emitting gases.
description: 52 pages, 8 figures, 6 tables. Accepted for publication in the Astrophysical Journal
title: Social Media Use During Crisis Events: A Mixed-Method Analysis of Information Sources and Their Trustworthiness
Creators: name: Chauhan, Apoorva
Publisher: name: Utah State University
Year: 2019

description: This dissertation consists of three studies that examine online communications during crisis events. The first study identified and examined the information sources that provided official information online during the 2014 Carlton Complex Wildfire. Specifically, after the wildfire, a set of webpages and social media accounts were discovered that were named after the wildfire—called Crisis Named Resources (or CNRs). CNRs shared the highest percentage of wildfire-relevant information. Because CNRs are named after a crisis event, they are easier to find and appear to be dedicated and/or official sources around an event. They can, however, be created and deleted in a short time, and the creators of CNRs are often unknown, which raises questions of trust and credibility regarding the information CNRs provide.

To better understand the role of CNRs in crisis response, the second study examined CNRs that were named after the 2016 Fort McMurray Wildfire. Findings showed that many CNRs were created around the wildfire, most of which either became inactive or were closed after the wildfire containment. These CNRs shared wildfire-relevant information and served a variety of purposes from information dissemination to offers of help to expressions of solidarity. Additionally, even though most CNR owners remained anonymous, these resources received good reviews and were followed by many people.

These observations about CNRs laid the foundation for the third study that sought to determine the factors that influence the trustworthiness of these resources. The third study involved 17 interviews and 105 surveys with members of the public and experts in Crisis Informatics, Communication Studies, and Emergency Management. Participants were asked to evaluate the trustworthiness of CNRs that were named after the 2017 Hurricane Irma. Findings indicate that participants evaluated the trustworthiness of CNRs based on their perceptions of CNR content, information source(s), owner, and profile.
title: Investigation of Graphene Interconnections for Multifunctional Reconfigurable Antenna Beam Steering
Creators: name: Perkins, Joshua R.
Publisher: name: Utah State University
Year: 2019

description: In high frequency, high-performance wireless communications, direct line of sight antennas are common. The issue with the line of sight antennas is the need to redirect the physical antenna to achieve the best possible reception. Classical redirections are done by mechanical movements: hand tuning and motors. Our multi-functional re-configurable antenna (MRA) concept allows for electrical and non-mechanical antenna reorientation. This work investigates two important concepts in the development and enhancement of future MRA devices: special, non-interfering, control signal circuitry and nano-sized switching devices that are controlled by the special circuitry. The investigation was conducted with the use of commercially available antenna modeling software: ANSYS High Frequency System Solver.
Untersuchung der Koppelimpedanz von induktiven Ladesystemen zur Quantifizierung der Einkopplung von Burst und Surge Impulsen
Creators: name: Jeschke, Sebastian
name: Olbrich, Marcel
name: Kleinen, Michael
name: Bärenfänger, Jörg
Publisher: name: Aachen : Apprimus
Year: 2022
Subjects: subject: EMV
subject: Verträglichkeit
subject: Elektromagnetik
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: Die Technologie der kontaktlosen, induktiven Energieübertragung zum Laden von Elektrofahr-zeugen ermöglicht eine erhebliche Steigerung des Komforts für den Endverbraucher. In der Zukunft wird zudem die induktive Ladetechnologie für das Laden autonomer Fahrzeuge an Bedeutung zunehmen. Beim induktiven Laden erfolgt die Energieübertragung über das magnetische Feld zwischen zwei luftgekoppelten Spulen. Eine schematische Darstellung des Ladesystems zeigt Bild 1. Die an das Versorgungsnetz angeschlossene Leistungselektronik des Bodensystems richtet die Netzspannung zunächst gleich, um das Signal anschließend auf die Übertragungsfrequenz von 79 bis 90 kHz [1] umzurichten. Für eine effiziente Energieübertragung zwischen den beiden Spulen muss boden- und fahrzeugseitig jeweils der induktive Blindstrom der Spulen durch Einbringen einer auf die Übertragungsfrequenz abgestimmten Kapazität kompensiert werden. Zum Laden der Hochvoltbatterie wird das Signal fahrzeugseitig gleichgerichtet. Wie auch beim konduktiven Laden können während des Ladevorgangs netzseitige Störimpulse ins Fahrzeugbordnetz koppeln, deren maximalen Amplituden u.a. in der IEC 61851-21-2 [2] vorgegeben werden. Da auch bei induktiven Ladesystemen Pulsstörer über die Spulen ins Fahrzeug einkoppeln können, werden in dieser Arbeit die Koppeleigenschaften eines Wireless Power Transfer [WPT]- Systems [3] untersucht. Hierzu werden in einem ersten Schritt die Systemimpedanzen vermessen und der Impedanzverlauf in einem Simulationsmodell nachgebildet. Im Folgenden werden Burst- und Surge-Pulse auf die Eingangsklemmen der Bodenspule appliziert und die Impulsantwort auf der Sekundärseite messtechnisch erfasst. Diese Messungen werden dann zur Verifikation des Simulationsmodells herangezogen. Um das reale System nicht zu stark zu beanspruchen, werden die Pulsspannungen über 1000 V simulativ untersucht, um das Überkopplungspotential für die betrachteten Pulse abzuschätzen.
Broadband forward scattering from dielectric cubic nanoantenna in lossless media
Creators: name: Terekhov, P.D.
name: Shamkhi, H.K.
name: Gurvitz, E.A.
name: Baryshnikova, K.V.
name: Evlyukhin, A.B.
name: Shalin, A.S.
name: Karabchevsky, A.
Publisher: name: Washington, DC : OSA - The Optical Society
Year: 2019
Subjects: subject: Infrared devices
subject: Light scattering
subject: Nanoantennas
subject: Nanophotonics
subject: Near infrared spectroscopy
subject: Red Shift
subject: Cubic nanoparticles
subject: Optical resonant
subject: Optical signatures
subject: Scattering process
subject: Scattering property
subject: Spectral red shifts
subject: Treatment efficiency
subject: Visible and near infrared
subject: Forward scattering
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Dielectric photonics platform provides unique possibilities to control light scattering via utilizing high-index dielectric nanoantennas with peculiar optical signatures. Despite the intensively growing field of all-dielectric nanophotonics, it is still unclear how surrounding media affect scattering properties of a nanoantenna with complex multipole response. Here, we report on light scattering by a silicon cubic nanoparticle embedded in lossless media, supporting optical resonant response. We show that significant changes in the scattering process are governed by the electro-magnetic multipole resonances, which experience spectral red-shift and broadening over the whole visible and near-infrared spectra as the indices of media increase. Most interestingly, the considered nanoantenna exhibits the broadband forward scattering in the visible and near-infrared spectral ranges due to the Kerker-effect in high-index media. The revealed effect of broadband forward scattering is essential for highly demanding applications in which the influence of the media is crucial such as health-care, e.g., sensing, treatment efficiency monitoring, and diagnostics. In addition, the insights from this study are expected to pave the way toward engineering the nanophotonic systems including but not limited to Huygens-metasurfaces in media within a single framework.
Waren effizient und nachhaltig geliefert : Die USEfUL Webapplikation
Creators: name: Heumann, Maximilian
name: Wage, Oskar
name: Feuerhake, Udo
name: Breitner, Michael H.
name: Sester, Monika
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2022
Subjects: subject: Energieversorgung
subject: Transformation
subject: Erneuerbare Energien
subject: Energiewende
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft::333 | Boden- und Energiewirtschaft::333,7 | Natürliche Ressourcen, Energie und Umwelt

description: [no abstract available]
title: Detector Development and Analysis Techniques for Finding Leptoquarks with the ATLAS Detector at the LHC
Creators: name: Müller, Roman
Publisher: name: Universität Bern
Year: 2023
Subjects: subject: 530 Physics

description: The LHC and its experiments at CERN constitute the largest particle physics research programme to date, allowing for extensive studies of the existing Standard Model and for potential evidence of physics beyond that of our current comprehension. This thesis presents an analysis technique to find third generation Leptoquarks in high mass Ƭ+Ƭ- final states. The sensitivity on the coupling strength of a leptoquark with a chosen mass of 1.5 TeV (2 TeV) is g2 = 6.61+1.13-0.95 (g2 = 10.98+1.92-1.65). This is calculated using the total transverse mass of an event, mtotalT. In order to enhance the accuracy of tests on the Standard Model and to broaden the potential for uncovering new realms of physics such as leptoquarks, the LHC will be upgraded to the High-Luminosity LHC. This thesis presents the development of the Optoboard System – the part of the ATLAS new Inner Tracker (ITk) Pixel Detector readout system that handles the transfer of data, command and trigger between the modules and the backend. All ITk Pixel Detector modules are assigned and mapped to the Optoboard System with Twinax cables length between 3016 mm and 5776 mm. Compatible with requirements in data transmission reliability, the Optoboard System is validated first with jitter measurements and bit error rate tests, reaching the desired BER95% < 2.7 x 10-12 and second, with Sr-90 radiation at the ITk Pixel system test site with the Outer Barrel demonstrator.
What can be decided locally without identifiers?
Creators: name: Fraigniaud, Pierre
name: Göös, Mika
name: Korman, Amos
name: Suomela, Jukka
Publisher: name: arXiv
Year: 2013
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: Do unique node identifiers help in deciding whether a network $G$ has a prescribed property $P$? We study this question in the context of distributed local decision, where the objective is to decide whether $G \in P$ by having each node run a constant-time distributed decision algorithm. If $G \in P$, all the nodes should output yes; if $G \notin P$, at least one node should output no. A recent work (Fraigniaud et al., OPODIS 2012) studied the role of identifiers in local decision and gave several conditions under which identifiers are not needed. In this article, we answer their original question. More than that, we do so under all combinations of the following two critical variations on the underlying model of distributed computing: ($B$): the size of the identifiers is bounded by a function of the size of the input network; as opposed to ($\neg B$): the identifiers are unbounded. ($C$): the nodes run a computable algorithm; as opposed to ($\neg C$): the nodes can compute any, possibly uncomputable function. While it is easy to see that under ($\neg B, \neg C$) identifiers are not needed, we show that under all other combinations there are properties that can be decided locally if and only if identifiers are present. Our constructions use ideas from classical computability theory.
description: 1 + 15 pages, 3 figures
title: Association Between PTSD Symptom Clusters, Substance Use, Hypersexuality, and Erectile Dysfunction in Service Members and Veterans
Creators: name: Fruge, Jeremiah E.
Publisher: name: Utah State University
Year: 2019

description: Service members and veterans of the current era, Operation Enduring Freedom (OEF), Operation Iraqi Freedom (OIF), and Operation New Dawn (OND) are at a high risk for a variety of psychological disorders and physical health impairments. Common disorders among male service members and veterans include posttraumatic stress disorder (PTSD), substance use, and hypersexuality. Each of these disorders affect all aspects of an individual’s life and can deteriorate important interpersonal relationships or impair functioning in a variety of contexts. All these variables can affect sexual health and functioning in these service members. Sexual functioning is an important aspect of overall well-being, relationship satisfaction, and marriage satisfaction. Conversely, sexual dysfunction can create interpersonal distress in important relationships and decrease overall well-being. One of the most common forms of sexual dysfunction in males is erectile dysfunction, and rates of sexual dysfunction are higher among male service members. These rates increase for combat veterans with a posttraumatic stress disorder (PTSD) diagnosis compared to those who do not have the same diagnosis. To date sexual dysfunction has been associated with PTSD, substance use, and hypersexuality. The current study examines how each of these disorders together are associated with erectile dysfunction in a sample of OEF/OIF/OND service members and veterans (N = 213). Exploratory analysis breaks down PTS symptoms into seven separate symptom clusters in an effort to determine what types of symptoms are most strongly associated with erectile dysfunction. The study recruited a sample of service members and veterans via Facebook and asked them to complete a survey battery that covered sexual health and assessed for PTSD, substance use, and hypersexuality. PTS symptoms were significantly associated with erectile dysfunction, in particular anhedonia and dysphoric arousal symptoms accounted for the most variance in this sample. Further research with clinical samples may strengthen these results or indicate additional symptom clusters that should be targeted in treatment and screening.
Total screening and finite range forces from ultra-massive scalar fields
Creators: name: Arodz, H.
name: Karkowski, J.
name: Swierczynski, Z.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Force between static point particles coupled to a classical ultra-massive scalar field is calculated. The field potential is proportional to the modulus of the field. It turns out that the force exactly vanishes when the distance between the particles exceeds certain finite value. Moreover, each isolated particle is surrounded by a compact cloud of the scalar field that completely screens its scalar charge.
description: 16 pages, no figures
title: An Assessment of Self-Determination Skills in Transition-Age Students with Disabilities Following Instruction Using the My Transition Portfolio Program
Creators: name: Jex, Eliza
Publisher: name: Utah State University
Year: 2019

description: The successful transition for students with disabilities into adult roles and activities post high-school, including employment, participation in postsecondary educational opportunities, and inclusion in social activities, continues to be a challenge for these individuals. Research has established that the development of certain skills earlier on can support students with disabilities in making a successful transition into these adult roles. The development of self-determination skills is one such practice. There is a need in the field of education to further research in programs that are available for teachers in providing instruction in self-determination skills. This study sought to establish research on one such program titled the My Transition Portfolio. The cost of this program included the purchase of individual student workbooks and a copy of the teacher’s manual for each participating teacher. This cost was covered by the student researcher. The results of this study did establish the potential of the program to assist teachers in providing instruction in self-determination skills and that future research on the program would be advantageous to the field.
Backhopping effect in magnetic tunnel junctions: comparison between theory and experiment
Creators: name: Skowroński, Witold
name: Ogrodnik, Piotr
name: Wrona, Jerzy
name: Stobiecki, Tomasz
name: Świrkowicz, Renata
name: Barnaś, Józef
name: Reiss, Günter
name: van Dijken, Sebastiaan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on the magnetic switching and backhopping effects due to spin-transfer-torque in magnetic tunnel junctions. Experimental data on the current-induced switching in junctions with MgO tunnel barrier reveal a random back-and-forth switching between the magnetization states, which appears when the current direction favors the parallel magnetic configuration. The effect depends on the barrier thickness $t_b$, and is not observed in tunnel junctions with very thin MgO tunnel barriers, $t_b$ $
description: 7 pages, 3 figures, regular journal paper
title: Epigenetic Reprogramming, Apoptosis, and Developmental Competence in Cloned Embryos
Creators: name: Moley, Laura A.
Publisher: name: Utah State University
Year: 2019

description: Cloning through somatic cell nuclear transfer (SCNT) remains highly inefficient twenty years after the first demonstration of the technology with the birth of Dolly. By increasing efficiency by selecting the embryos early in development that are most likely to succeed following transfer into a surrogate mother, the technology could be more routinely utilized to enhance animal agriculture production. SCNT is believed to be highly inefficient as a result of incorrect DNA methylation and gene expression that are accumulated because of the SCNT technique. We proposed the use of a non-toxic, non-invasive detector of cell death, to quantitatively assess embryo competency prior to embryo transfer. We believed we could use SR-FLICA to identify the embryos with low levels of cell death as a result of proper DNA methylation and gene expression. By analyzing the whole embryo, differences in gene expression and DNA methylation were identified in embryos with high and low levels of cell death. However, the level of cell death did not prove to be a reliable indicator of embryo quality in predicting pregnancy outcome. This data supports the commonly held hypothesis that DNA methylation and gene expression after SCNT have random defects as a result of the random nature of resetting the DNA for embryo development. More research is required to identify the embryos which will prove to be successful following SCNT and embryo transfer.
Räumliches Planen in Wissenschaft und Praxis – von „Mind the Gap“ zu „Finding Gaps“
Creators: name: Levin-Keitel, Meike
name: Sondermann, Martin
Publisher: name: Heidelberg : Springer
Year: 2017
Subjects: subject: editorial
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::710 | Landschaftsgestaltung, Raumplanung

description: Räumliche Planung ist ein weites Handlungsfeld und umfasst sowohl die Planungspraxis im Sinne planerischer Interventionen in räumliche Entwicklungen als auch die Planungswissenschaft als korrespondierende wissenschaftliche Disziplin. Wissenschaft und Praxis unterscheiden sich dabei schon allein aufgrund ihrer unterschiedlichen Denk- und Handlungsweisen, ihrer Kontexte, Anforderungen und Möglichkeiten. Wir wollen in diesem Schwerpunktheft den Fragen nachgehen, in welchem Verhältnis Planungswissenschaft und -praxis heute zueinander stehen, inwiefern sie füreinander von Bedeutung sind und welche Rolle Theorien dabei spielen.
Nonequilibrium Green's functions in the study of heat transport of driven nanomechanical systems
Creators: name: Arrachea, Liliana
name: Rizzo, Bruno
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We review a recent theoretical development based on non-equilibrium Green's function formalism to study heat transport in nanomechanical devices modeled by phononic systems of coupled quantum oscillators driven by ac forces and connected to phononic reservoirs. We present the relevant equations to calculate the heat currents flowing along different regions of the setup, as well as the power developed by the time-dependent forces. We also present different strategies to evaluate the Green's functions exactly or approximately within the weak driving regime. We finally discuss the different mechanisms in which the ac driving forces deliver the energy. We show that, besides generating heat, the forces may operate exchanging energy as a quantum engine.
description: 14 pages, 2 figures
title: The Economic Impact of Digital Payment Systems
Creators: name: Fuchs, Max
Publisher: name: Universität Kassel
Year: 2023
Subjects: subject: Kryptowährungen
subject: Zentralbankgeld
subject: Währungswettbewerb
subject: Digitalisierung und Wohlfahrtsvergleich
subject: 330
subject: Virtuelle Währung
subject: Zentralbankgeld
subject: Währungswettbewerb
subject: Digitalisierung
subject: Wohlfahrt
subject: Zahlungsmittel

description: Zugleich: Dissertation, Universität Kassel, 2023
Cerastium tomentosum L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. tomentosum L. Cat. 54. Verwildert oder verschleppt. 2:Siders (J.); Leuk (J.). - 3:Visp,Nähe des Bahnhofes(Becherer1955);Brig (J.).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Best Practice and Definitions of Formalisation and Formalism
Creators: name: Rückemann, Claus-Peter
name: Pavani, Raffaella
name: Gersbeck-Schierholz, Birgit
name: Tsitsipas, Athanasios
name: Schubert, Lutz
name: Hülsmann, Friedrich
name: Lau, Olaf
name: Hofmeister, Martin
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2019
Subjects: subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: Post-Summit Results, Delegates' Summit, September 25, 2019, The Ninth Symposium on Advanced Computation and Information in Natural and Applied Sciences (SACINAS), The 17th International Conference of Numerical Analysis and Applied Mathematics (ICNAAM), September 23-28, 2019, Rhodes, Greece
Planetary System Disruption by Galactic Perturbations to Wide Binary Stars
Creators: name: Kaib, Nathan A.
name: Raymond, Sean N.
name: Duncan, Martin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Nearly half of the exoplanets found within binary star systems reside in very wide binaries with average stellar separations beyond 1,000 AU (1 AU being the Earth-Sun distance), yet the influence of such distant binary companions on planetary evolution remains largely unstudied. Unlike their tighter counterparts, the stellar orbits of wide binaries continually change under the influence of the Galactic tide and impulses from other passing stars. Here we report numerical simulations demonstrating that the variable nature of wide binary star orbits dramatically reshapes the planetary systems they host, typically Gyrs after formation. Contrary to previous understanding, wide binary companions may often strongly perturb planetary systems, triggering planetary ejections and exciting orbital eccentricities of surviving planets. Indeed, observed exoplanet eccentricities offer evidence of this; giant exoplanet orbits within wide binaries are statistically more eccentric than those around isolated stars. Both eccentricity distributions are well-reproduced when we assume isolated stars and wide binaries host similar planetary systems whose outermost giant planets are scattered beyond ~10 AU from their parent stars via early internal instabilities. Consequently, our results suggest that although wide binaries eventually truncate their planetary systems, most isolated giant exoplanet systems harbor additional distant, still undetected planets.
description: Accepted manuscript to appear in Nature w/ included supplement; 32 pages, 14 figures, 2 tables
Electronic and optical properties of Cadmium fluoride: the role of many-body effects
Creators: name: Cappellini, Giancarlo
name: Furthmüller, Jürgen
name: Cadelano, Emiliano
name: Bechstedt, Friedhelm
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Electronic excitations and optical spectra of $CdF_{2}$ are calculated up to ultraviolet employing state-of-the-art techniques based on density functional theory and many-body perturbation theory. The GW scheme proposed by Hedin has been used for the electronic self-energy to calculate single-particle excitation properties as energy bands and densities of states. For optical properties many-body effects, treated within the Bethe-Salpeter equation framework, turn out to be crucial. A bound exciton located about 1 eV below the quasiparticle gap is predicted. Within the present scheme the optical absorption spectra and other optical functions show an excellent agreement with experimental data. Moreover, we tested different schemes to obtain the best agreement with experimental data. Among the several schemes, we suggest a self-consistent quasiparticle energy scheme.
description: Accepted on PRB
Identification of mouse cytomegalovirus factors that determine the tropism for epithelial cells and that induce morphological changes in infected cells
Creators: name: Sengstake, Sarah
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2009
Subjects: subject: Mouse cytomegalovirus
subject: cell tropism
subject: cytopathic effect
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
The Effect of Administrative obstacles in the job performance A case of Universities in South-South, Nigeria..pdf
Creators: name: Edeh, Stephen  Olenye
Publisher: name: figshare
Year: 2023
Subjects: Professional education and training
Teacher education and professional development of educators
Education systems not elsewhere classified

description: This study investigates the effects of administrative obstacle in job performance, a case of universities in south-south, Nigeria. Two hypotheses were formulated and tested by using multiple regression technique to justify the truth or otherwise the hypotheses. The tested null hypotheses were rejected and the alternate hypotheses retained. The inference was drawn that the administrative obstacles of male and female heads of departments….
FIR-detected Lyman break galaxies at z ~ 3: Dust attenuation and dust correction factors at high redshift
Creators: name: Oteo, I.
name: Cepa, J.
name: Bongiovanni, Á.
name: Pérez-García, A. M.
name: Cedrés, B.
name: Sánchez, H. Domínguez
name: Ederoclite, A.
name: Sánchez-Portal, M.
name: Pintos-Castro, I.
name: Pérez-Martínez, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Lyman break galaxies (LBGs) represent one of the kinds of star-forming galaxies that are found in the high-redshift universe. The detection of LBGs in the FIR domain can provide very important clues on their dust attenuation and total SFR, allowing a more detailed study than those performed so far. In this work we explore the FIR emission of a sample of 16 LBGs at z ~ 3 in the GOODS-North and GOODS-South fields that are individually detected in PACS-100um or PACS-160um. These detections demonstrate the possibility of measuring the dust emission of LBGs at high redshift. We find that PACS-detected LBGs at z ~ 3 are highly obscured galaxies which belong to the Ultra luminous IR galaxies or Hyper luminous IR galaxies class. Their total SFR cannot be recovered with the dust attenuation factors obtained from their UV continuum slope or their SED-derived dust attenuation employing Bruzual & Charlot (2003) templates. Both methods underestimate the results for most of the galaxies. Comparing with a sample of PACS-detected LBGs at z ~ 1 we find evidences that the FIR emission of LBGs might have changed with redshift in the sense that the dustiest LBGs found at z ~ 3 have more prominent FIR emission, are dustier for a given UV slope, and have higher SFR for a given stellar mass than the dustiest LBGs found at z ~ 1.
description: Accepted for publication in A&A letters
Numerische Berechnung des mehrstufigen Rotationszugbiegeprozesses von Flachpaketstatoren für elektrische Maschinen
Creators: name: Wüterich, David
name: Liewald, Mathias
Publisher: name: Universitätsbibliothek Siegen
Year: 2023
Subjects: subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: Rotationszugbiegen
subject: FEM
subject: Rückfederung
subject: elektrische Maschinen
subject: Biegen

description: Die vorliegende Publikation enthält eine Zusammenfassung bisher durchgeführter numerischer und experimenteller Untersuchungen zum Flachpaketbiegeverfahren, welches zur Herstellung von hocheffizienten Statoren für elektrische Maschinen verwendet wird. Die Untersuchungen entstanden in einer Kooperation zwischen dem Institut für Umformtechnik der Universität Stuttgart und der SEG Automotive Germany GmbH. Basierend auf den Ergebnissen vorheriger Arbeiten zur Modellierung des Flachpaketbiegeprozesses werden hier weiterentwickelte Optimierungsrechnungen gezeigt, die im realen Fertigungsbetrieb validiert und anschließend aufgrund der erheblichen Reduktion der bis dato erreichten Rundheitsabweichungen in der laufenden Produktion übernommen wurden. Die vier Variablen des hier vorgestellten mathematischen Optimierungsproblems sind die Vorspannkräfte, die in jeder der vier aufeinanderfolgenden Biegeoperationen eingestellt werden können. Das Zusammenführen von vier Residualkurven mit den korrespondierenden Ergebniswerten ergibt einen mathematisch berechneten Statorprofilschnitt, dessen Rundheitsabweichungen durch Variieren der vier Variablen minimiert wird. Das Einstellen der ermittelten Vorspannkraft pro Biegestation führte einerseits zu einer Bestätigung des Rechenmodells und andererseits zu einer Senkung der Rundheitsabweichungen von bis zu 25 %.
Classical Cepheids, what else?
Creators: name: Bono, G.
name: Inno, L.
name: Matsunaga, N.
name: Genovali, K.
name: Lemasle, B.
name: Primas, F.
name: Romaniello, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present new and independent estimates of the distances to the Magellanic Clouds (MCs) using near-infrared (NIR) and optical--NIR period--Wesenheit (PW) relations. The slopes of the PW relations are, within the dispersion, linear over the entire period range and independent of metal content. The absolute zero points were fixed using Galactic Cepheids with distances based on the infrared surface-brightness method. The true distance modulus we found for the Large Magellanic Cloud---$(m-M)_0 = 18.48 \pm 0.01 \pm 0.10$ mag---and the Small Magellanic Cloud---$(m-M)_0 = 18.94 \pm 0.01 \pm 0.10$ mag---agree quite well with similar distance determinations based on robust distance indicators. We also briefly discuss the evolutionary and pulsation properties of MC Cepheids.