cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The interstellar medium and the massive stellar content toward the SNR G18.1-0.1 and neighboring HII regions
Creators: name: Paron, S.
name: Weidmann, W.
name: Ortega, M. E.
name: Colombo, J. F. Albacete
name: Pichel, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We perform a multiwavelength study toward the SNR G18.1-0.1 and nearby several HII regions (infrared dust bubbles N21 and N22, and the HII regions G018.149-00.283 and G18.197-00.181). Our goal is to provide observational evidence supporting that massive stars usually born in clusters from the same molecular cloud, which then produce, along their evolution, different neighboring objects such as HII regions, interstellar bubbles and supernova remnants. We suggest that the objects analysed in this work belong to a same complex located at the distance of about 4 kpc. Using molecular data we inspected the interstellar medium toward this complex and from optical and X-ray observations we looked for OB-type stars in the region. Analysing public 13CO J=1--0 data we found several molecular structures very likely related to the HII region/SNR complex. We suggest that the molecular gas is very likely being swept and shaped by the expansion of the HII regions. From spectroscopic optical observations obtained with the 2.15 m telescope at CASLEO, Argentina, we discovered three O-type stars very likely exciting the bubbles N21 and N22, and an uncatalogued HII region northward bubble N22, respectively. Also we found four B0-5 stars, one toward the bubble N22 and the others within the HII region G18.149-0.283. By inspecting the Chandra Source Catalog we found two point X-ray sources and we suggest that one of them is an early O-type star. Finally we inspected the large scale interstellar medium around this region. We discovered a big molecular shell of about 70 pc x 28 pc in which the analysed complex appears to be located in its southern border.
description: To be published in MNRAS: Accepted 2013 May 9. Received 2013 May 9; in original form 2012 December 27
title: Handlungsfähigkeit in der Freizeit Jugendlicher: Von Aktivitäten zu Kontexten in quantitativen Erhebungen
Creators: name: Mataloni, Barbara
Publisher: name: SSOAR -   GESIS Leibniz Institute for the Social Sciences
Year: 2021
Subjects: subject: 10210 Sociology of the Youth, Sociology of Childhood
subject: everyday life
subject: capacity to act
subject: survey research
subject: youth
subject: leisure time

description: Agency beschreibt die Fähigkeit von Jugendlichen auf ihre Umwelt einwirken zu können. Es handelt sich dabei aber nicht um eine Eigenschaft, die vorausgesetzt werden kann, sondern um eine Fähigkeit, die sozial gebildet wird. Von Bedeutung für die Handlungsfähigkeit von Jugendlichen sind dabei auch die Bedingungen in ihrer Freizeit. In diesem Beitrag werden erste Ergebnisse aus einer Online-Umfrage in Wien vorgestellt, in der mit einem neu entwickelten Messinstrument sowohl organisierte als auch nicht-organisierte Freizeitkontexte in den Blick genommen wurden. In organisierten Freizeitkontexten, d.h. "Bei einem Training, Kurs oder Probe", sind die Möglichkeiten neue Aspekte über sich selbst kennenzulernen und mit unterstützenden Anderen in Kontakt zu sein besonders ausgeprägt. Auch nicht-organisierte Freizeitkontexte, wie z.B. "Bei Freunden und Freundinnen zuhause", "Außer Haus, in der Stadt" und "Im Freien in der Natur" bieten Gelegenheiten für die Herausbildung von Handlungsfähigkeit. Darüber hinaus sind sie durch ein geringeres Ausmaß an Verpflichtung gekennzeichnet. Insgesamt scheinen die Erfahrungen in diesen Kontexten flüchtiger, fragiler, aber auch entwicklungsoffener zu sein.
description: Gesellschaft unter Spannung: Verhandlungen des 40. Kongresses der Deutschen Gesellschaft für Soziologie 2020
Skepsis als Weg zum Glück? Eine Untersuchung zum Zusammenhang von Urteilsenthaltung und Seelenruhe in der Antike und der Aufklärung
Creators: name: Meyer, Anneke
Publisher: name: Hannover : Wehrhahn Verlag
Year: 2007
Subjects: subject: Philosophie
subject: Skeptizismus
subject: Glück
subject: Dewey Decimal Classification::100 | Philosophie

description: Wezel stimmte 1776 ein Lob des Zweifels an, obwohl zu dieser Zeit der frühe neuzeitliche Zweifel längst vom Fortschrittsoptimismus der Wissenschaft abgelöst war. Zugleich behauptete er, dass eine skeptische Lebenshaltung zu einem ruhigen und gelassenen, womöglich sogar glücklichen Leben führen könne. (www.wehrhahn-verlag.de)
Generalized color codes supporting non-Abelian anyons
Creators: name: Brell, Courtney G.
Publisher: name: College Park, MD : American Physical Society
Year: 2015
Subjects: subject: Non-Abelian groups
subject: Kitaev quantum double models
subject: Topological codes
subject: finite group G
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We propose a generalization of the color codes based on finite groups G. For non-Abelian groups, the resulting model supports non-Abelian anyonic quasiparticles and topological order. We examine the properties of these models such as their relationship to Kitaev quantum double models, quasiparticle spectrum, and boundary structure.
On the asymmetry of velocity oscillation amplitude in bipolar active regions
Creators: name: Giannattasio, F.
name: Stangalini, M.
name: Del Moro, D.
name: Berrilli, F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The velocity field in the lower solar atmosphere undergoes strong interactions with magnetic fields. Many authors have pointed out that power is reduced by a factor between two and three within magnetic regions, depending on frequency, depth, the radius and the magnetic strength of the flux tube. Many mechanisms have been proposed to explain the observations. In this work, SDO dopplergrams and magnetograms of 12 bipolar active regions ($β$ARs) at a 45 second cadence, are used to investigate the relation between velocity fluctuations and magnetic fields. We show that there is an asymmetry within $β$ARs, with the velocity oscillation amplitude being more suppressed in the leading polarities compared to the trailing polarities. Also, the strongest magnetic fields do not completely suppress the five-minute oscillation amplitude, neither in the spot innermost umbrae.
Quantitative Detection of Benzene in Toluene- and Xylene-Rich Atmospheres Using High-Kinetic-Energy Ion Mobility Spectrometry (IMS)
Creators: name: Langejuergen, Jens
name: Allers, Maria
name: Oermann, Jens
name: Kirk, Ansgar T.
name: Zimmermann, Stefan
Publisher: name: Washington D.C. : American Chemical Society
Year: 2014
Subjects: subject: Ion Mobility Spectrometer
subject: IMS
subject: Benzene
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: One major drawback of ion mobility spectrometry (IMS) is the dependence of the response to a certain analyte on the concentration of water or the presence of other compounds in the sample gas. Especially for low proton affine analytes, e.g., benzene, which often exists in mixtures with other volatile organic compounds, such as toluene and xylene (BTX), a time-consuming preseparation is necessary. In this work, we investigate BTX mixtures using a compact IMS operated at decreased pressure (20 mbar) and high kinetic ion energies (HiKE-IMS). The reduced electric field in both the reaction tube and the drift tube can be independently increased up to 120 Td. Under these conditions, the water cluster distribution of reactant ions is shifted toward smaller clusters independent of the water content in the sample gas. Thus, benzene can be ionized via proton transfer from H3O+ reactant ions. Also, a formation of benzene ions via charge transfer from NO+ is possible. Furthermore, the time for interaction between ions and neutrals of different analytes is limited to such an extent that a simultaneous quantification of benzene, toluene, and xylene is possible from low ppbv up to several ppmv concentrations. The mobility resolution of the presented HiKE-IMS varies from R = 65 at high field (90 Td) to R = 73 at lower field (40 Td) in the drift tube, which is sufficient to separate the analyzed compounds. The detection limit for benzene is 29 ppbv (2 s of averaging) with 3700 ppmv water, 12.4 ppmv toluene, and 9 ppmv xylene present in the sample gas. Furthermore, a less-moisture-dependent benzene measurement with a detection limit of 32 ppbv with ca. 21 000 ppmv (90% relative humidity (RH) at 20 °C) water present in the sample gas is possible evaluating the signal from benzene ions formed via charge transfer.
title: Konflikte um Wohnen in Gentrifizierungsgebieten: Ein interaktionistischer Zugang
Creators: name: Rinn, Moritz
name: Wehrheim, Jan
name: Wiese, Lena
Publisher: name: SSOAR -   GESIS Leibniz Institute for the Social Sciences
Year: 2021
Subjects: subject: 10213 Sociology of Settlements and Housing, Urban Sociology
subject: gentrification
subject: interactionism
subject: conflict
subject: town
subject: suppression
subject: Hamburg
subject: city quarter
subject: Federal Republic of Germany
subject: residential behavior

description: In diesem Beitrag diskutieren wir die Frage, wann und in welchen Formen Widerstände und Konflikte in Gentrifizierungsprozessen entstehen, und wann diese ausbleiben, am Gentrifizierungsprozess in Altona-Altstadt. Der Hamburger Stadtteil weist seit knapp zwei Jahrzehnten starke Mietsteigerungen, Immobilienpreise, stadtpolitische Aufwertungsstrategien und deutliche Zeichen von Verdrängung auf. Initiativen des Hamburger Recht auf Stadt-Netzwerkes haben auch hier gegen Gentrifizierung protestiert. Gleichzeitig haben uns Bewohner*innen im Rahmen eines qualitativ-ethnographischen Forschungsprojektes zwar vielfach über die Gentrifizierung des Stadtteils, aber kaum über selbst ausgetragene Konflikte etwa um Mieterhöhungen berichtet. Diesen vermeintlichen Widerspruch untersuchen wir mit Fokus auf verdrängungsrelevante Situationen aus einer praxisanalytischen Perspektive, die kritisch-materialistische Sozialforschung mit einer symbolisch-interaktionistischen Methodologie verbindet. Als zentraler Befund zeigt sich, dass normative Definitionen 'impliziter Mietvertragsverhältnisse' sowie Typisierungen der jeweiligen Vermieter*innen und Selbstzuschreibungen eigener Handlungs(un)fähigkeit von entscheidender Bedeutung dafür sind, ob Bewohner*innen Mieterhöhungen überhaupt als problematisch definieren und ob und wie sie in Aushandlungen mit Vermieter*innen treten. Konfliktorientierter Widerstand gegen drohende Verdrängung resultiert also nicht einfach aus eigener Betroffenheit, sondern ist deutlich voraussetzungsvoller, wobei die normative wie strategische Dimension von agency in verdrängungsrelevanten Situationen in Rechnung gestellt werden muss.
description: Gesellschaft unter Spannung: Verhandlungen des 40. Kongresses der Deutschen Gesellschaft für Soziologie 2020
Frequency-Domain Modeling of Harmonic Interactions in Voltage-Source Inverters with Closed-Loop Control
Creators: name: John, Malte
name: Mertens, Axel
Publisher: name: Basel : MDPI AG
Year: 2020
Subjects: subject: harmonic analysis
subject: power converters
subject: pulse-width modulation (PWM)
subject: frequency-domain model
subject: voltage-source inverter (VSI)
subject: closed-loop control
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Power electronic converters, together with their loads, sources, and controls, form a coupled system that includes many nonlinear interactions, for instance due to pulse-width modulation (PWM) and feedback control. In this paper we develop a complete, nonlinear modeling approach for voltage-source inverters in the frequency domain, taking into account the harmonic components introduced into the system from the inputs and from the nonlinear digital PWM. The most important contribution is a method for analyzing how these harmonics propagate through the nonlinear system in steady state. To enable this, an analytic model of PWM with arbitrary, multiple-frequency input is necessary. A revised model of Asymmetrical regularly-sampled double-edge PWM (AD-PWM) is proposed and its incorporation into the system model regarding sampling effects is discussed. The resulting nonlinear equation system is numerically and simultaneously solved, yielding the spectra of all relevant signals in the converter. The results are validated with time-domain simulations and with measurements, proving the effectiveness of the proposed approach.
Femtosecond Field-Driven On-Chip Unidirectional Electronic Currents in Nonadiabatic Tunneling Regime
Creators: name: Shi, Liping
name: Babushkin, Ihar
name: Husakou, Anton
name: Melchert, Oliver
name: Frank, Bettina
name: Yi, Juemin
name: Wetzel, Gustav
name: Demircan, Ayhan
name: Lienau, Christoph
name: Giessen, Harald
name: Ivanov, Misha
name: Morgner, Uwe
name: Kovacev, Milotin
Publisher: name: Weinheim : Wiley VCH
Year: 2021
Subjects: subject: ionization
subject: nanostructures
subject: optoelectronics
subject: Electromagnetic pulse
subject: Optoelectronic devices
subject: Plasmonics
subject: Wave packets
subject: Electron distributions
subject: Electronic current
subject: Femtosecond optical pulse
subject: Fundamental limitations
subject: Multi-photon effects
subject: On-chip electronics
subject: Optoelectronic applications
subject: Ultra-fast dynamics
subject: Ultrafast lasers
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Recently, asymmetric plasmonic nanojunctions have shown promise as on-chip electronic devices to convert femtosecond optical pulses to current bursts, with a bandwidth of multi-terahertz scale, although yet at low temperatures and pressures. Such nanoscale devices are of great interest for novel ultrafast electronics and opto-electronic applications. Here, the device is operated in air and at room temperature, revealing the mechanisms of photoemission from plasmonic nanojunctions, and the fundamental limitations on the speed of optical-to-electronic conversion. Inter-cycle interference of coherent electronic wavepackets results in a complex energy electron distribution and birth of multiphoton effects. This energy structure, as well as reshaping of the wavepackets during their propagation from one tip to the other, determine the ultrafast dynamics of the current. It is shown that, up to some level of approximation, the electron flight time is well-determined by the mean ponderomotive velocity in the driving field. © 2021 The Authors. Laser & Photonics Reviews published by Wiley-VCH GmbH
Does your gene need a background check? How genetic background impacts the analysis of mutations, genes, and evolution
Creators: name: Chandler, Chris H.
name: Chari, Sudarshan
name: Dworkin, Ian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Genomics (q-bio.GN)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences

description: The premise of genetic analysis is that a causal link exists between phenotypic and allelic variation. Yet it has long been documented that mutant phenotypes are not a simple result of a single DNA lesion, but rather are due to interactions of the focal allele with other genes and the environment. Although an experimentally rigorous approach, focusing on individual mutations and isogenic control strains, has facilitated amazing progress within genetics and related fields, a glimpse back suggests that a vast complexity has been omitted from our current understanding of allelic effects. Armed with traditional genetic analyses and the foundational knowledge they have provided, we argue that the time and tools are ripe to return to the under-explored aspects of gene function and embrace the context-dependent nature of genetic effects. We assert that a broad understanding of genetic effects and the evolutionary dynamics of alleles requires identifying how mutational outcomes depend upon the wild-type genetic background. Furthermore, we discuss how best to exploit genetic background effects to broaden genetic research programs.
description: In review at Trends in Genetics
Evaluating the influence of requirements in fuel cell system design using Design Requirement Maps
Creators: name: Fladung, Alexander
name: Scholz, Hannes
name: Berger, Oliver
name: Hanke-Rauschenbach, Richard
Publisher: name: Weinheim : Wiley-VCH
Year: 2021
Subjects: subject: ambient operating conditions
subject: automotive requirements
subject: PEM fuel cell system
subject: system design
subject: vehicle application
subject: Degrees of freedom (mechanics)
subject: Fuel systems
subject: Systems analysis
subject: Design questions
subject: Design variables
subject: Graphical presentations
subject: Multi-objective design
subject: Operating points
subject: Optimal combination
subject: Optimized designs
subject: Two degrees of freedom
subject: Fuel cells
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Finding a combination of design variables for an optimized design target is the main aspect in fuel cell system design. Beside that, it has to be ensured that all requirements, on component and vehicle level, are met. Using a visualization approach, called Design Requirement Map, as a graphical presentation of the design target and the requirements of two degrees of freedom, helps to answer certain design questions and enable an estimation of the influence of requirements and operating points on the optimal system design. In this paper, first, the general fuel cell system design problem is formulated and, second, the Design Requirement Map is used to study the influence of requirements on the optimal combination of humidifier scale and air compression ratio. Designs with too small or too large humidifiers reveal as designs, which are constrained by at least one of the considered requirements. In addition, the influence for a multi-objective design target and different ambient temperatures and pressures are addressed. For certain design questions using Design Requirement Maps can be very helpful to evaluate the impact of requirements on the system design especially when considering different operating points. © 2021 The Authors. Fuel Cells published by Wiley-VCH GmbH
title: The Stakeholder Gap Lens
title: Teacher and Parental Perceptions of the Achievement Gap in Kentucky's Public Schools
titleType: Subtitle
Creators: name: Chapman, Heather
Publisher: name: University of Kentucky Libraries
Year: 2019

description: The research around the achievement gap is extensive. However, regardless that the term “achievement gap” is so widely used in academia today, there is often confusion surrounding what the achievement gap is. This study seeks to answer three research questions: (1) To what extent does an achievement gap exist among different subgroups of students in Kentucky’s K-12 public schools? (2) How do the perceptions of parents and teachers interact with decision-making? (3) How do the ideas of parents and teachers regarding closing the achievement gap compare?
This research examines perceptions of the existence of an achievement gap in Kentucky’s public schools from the perspectives of two groups of stakeholders: parents and teachers. This study aims to identify trends in thinking about the existence of an achievement gap, how information is communicated, and how stakeholders think gaps can be closed.
The results of this study indicate that stakeholders have a general understanding of the achievement gap; however, methods of communication with parents need strengthening. Findings show that Kentucky schools with gaps tend to have multiple subgroups, rather than a single group, performing lower than their peers, but stakeholders have mixed ideas on closing these gaps.
description: Copyright © Heather Renee Brown Chapman 2019
title: Σχηματισμός συνάρτησης ελάχιστου ετήσιου ισοδύναμου κόστους κατασκευής-λειτουργίας φωτοβολταϊκού σταθμού σε περίπτωση αυτόνομου συστήματος με χρήση μπαταριών
title: Formation of a function of minimum annual equivalent construction-operation cost for an autonomous photovoltaic system using batteries
titleType: AlternativeTitle
Creators: name: Μπάντος, Κωνσταντίνος
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2022
Subjects: Αυτόνομα φωτοβολταϊκά πάρκα
Ηλεκτρική ενέργεια
Φωτοβολταϊκά πλαίσια
Μπαταρίες
Μπαταρίες μολύβδου
Μεθοδολογία
PVsyst
Οικία
Ετήσιο ισοδύναμο κόστος
Φωτοβολταϊκά συστήματα
Ηλεκτρική κατανάλωση

description: Η παρούσα διπλωματική εργασία έχει ως αντικείμενο την μελέτη, την έρευνα και την ανάλυση της μεθοδολογίας με σκοπό τον σχηματισμό μιας συνάρτησης υπολογισμού του ελάχιστου ισοδύναμου κόστους, τόσο για την κατασκευή, όσο και για τη λειτουργία ενός φωτοβολταϊκού σταθμού στην περίπτωση που απαιτείται αυτόνομο σύστημα ενέργειας με χρήση μπαταριών. Με τη βοήθεια της βιβλιογραφίας, έγινε έρευνα με σκοπό την όσο τον δυνατόν συντομότερη, αλλά πληρέστατη, περιγραφή τόσο των βασικών ,όσο και πιο λεπτομερών παραμέτρων που απαρτίζουν σήμερα ένα φωτοβολταϊκό πάρκο. Γίνεται εμβάθυνση στα κύρια μέρη που αποτελείται ένα αυτόνομο φωτοβολταϊκό πάρκο και τονίζονται τα σημεία που πρέπει να γίνουν ακριβείς υπολογισμοί. Σε μεμονωμένο κεφάλαιο υπολογίζονται οι ηλεκτρικές ενεργειακές ανάγκες ενός μέσου νοικοκυριού της χρονιάς 2022, και επεκτείνονται στις ηλεκτρικές ενεργειακές ανάγκες ενός οικισμού, με όλες τις παράπλευρες απαιτήσεις αυτού (κοινοτικός φωτισμός, δημόσια κτήρια, κ.λπ.). Ακολουθεί μεθοδολογία για τον σωστό υπολογισμό και τη σωστή διαστασιολόγιση ενός τέτοιου έργου, με βάση την θεωρία που παρουσιάστηκε, καθώς και έλεγχος αυτής με εκτεταμένο παράδειγμα και σύγκριση των αποτελεσμάτων με προσομοίωση που γίνεται στο λογισμικό PVSyst. Τέλος γίνεται οικονομική ανάλυση ενός επενδυτικού πλάνου για αυτόνομο φωτοβολταϊκό πάρκο με χρήση μπαταριών, και παρουσιάζεται ο τρόπος υπολογισμού του ελάχιστου ετήσιου ισοδύναμου κόστους. Η παρούσα διπλωματική, παρουσιάζει ένα πλήρη οδηγό με την χρήση του οποίου, ένας ηλεκτρολόγος μηχανικός δύναται να σχηματίσει μία μελέτη ενός αυτόνομου φωτοβολταϊκού πάρκου με το ελάχιστο ετήσιο ισοδύναμο κόστος κατασκευής και λειτουργίας.
title: Die Bedeutung der Begriffe "Links" und "Rechts" in verschiedenen sozialstrukturellen Kontexten
Creators: name: Horneber, Jakob
name: Barth, Alice
Publisher: name: SSOAR -   GESIS Leibniz Institute for the Social Sciences
Year: 2021
Subjects: subject: 10504 Political Process, Elections, Political Sociology, Political Culture
subject: ALLBUS
subject: political right
subject: political left
subject: correspondence analysis
subject: political attitude
subject: The New Right

description: War die sozialstrukturelle Verortung der politischen Richtungsbegriffe "Rechts" und "Links" lange unzweifelhaft, so ist diese Klarheit spätestens seit der Entstehung der mehrheitlich aus bürgerlichen Verhältnissen stammenden "Neuen Linken" und der bevorzugt ökonomisch Benachteiligte adressierenden "Neuen Rechten" passé. Während die soziale Stellung heute kein eindeutiger Indikator mehr dafür ist, ob jemand sich als "Links" oder "Rechts" einordnet, kann sie jedoch die ideologische Bedeutung, die den Begriffen "Links" und "Rechts" beigemessen wird, maßgeblich prägen. In der Forschung zur subjektiven Bedeutung der politischen Richtungsbegriffe wurde bereits verschiedentlich gezeigt, dass die verbreitete Annahme eines eindeutigen und kollektiv geteilten Verständnisses von "Links" und "Rechts" nur sehr eingeschränkt zutrifft. Mögliche sozialstrukturelle Zusammenhänge wurden dabei bisher allerdings weitgehend außer Acht gelassen. Wir stellen daher folgende Fragen: Welche kohärenten Konzepte von "links" und "rechts" gibt es in der deutschen Bevölkerung? Inwiefern ist die Sozialstruktur - unter Konstanthaltung der politischen Positionierung - hierbei ein strukturierender Faktor? Wir verwenden Daten aus dem ALLBUS 2008, in dem die Assoziationen der Befragten mit "Links" und "Rechts" offen abgefragt wurden und analysieren diese mit CAGalt, einer Variante der Korrespondenzanalyse für Textdaten. Wir zeigen, dass auch bei Befragten mit der gleichen politischen Selbstverortung unterschiedliche Assoziationen mit den Begriffen "Links" und "Rechts" auftreten. So lassen sich ökonomische, kulturelle oder politisch-systemische Konzepte sowie eine diffus-emotionale Reaktion abgrenzen, die mit Bildung, Region (Ost/West) und Alter assoziiert sind. Wir argumentieren, dass die auftretenden Muster für zwar unterschiedliche, aber jeweils in sich konsistente Konzepte von "Links" und "Rechts" sprechen. Unsere Analyse zeigt, dass die vermeintliche Auflösung sozialstrukturell bedingter politischer Bindungen sich zumindest für das ideologische Verständnis nicht bestätigen lässt und dass die Sozialstruktur mithin ein bedeutender Faktor politischer Verortung bleibt.
description: Gesellschaft unter Spannung: Verhandlungen des 40. Kongresses der Deutschen Gesellschaft für Soziologie 2020
On some mean square estimates for the zeta-function in short intervals
Creators: name: Ivić, Aleksandar
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11M06, 11N37

description: Let $Δ(x)$ denote the error term in the Dirichlet divisor problem, and $E(T)$ the error term in the asymptotic formula for the mean square of $|ζ(1/2+it)|$. If $E^*(t) = E(t) - 2πΔ^*(t/2π)$ with $Δ^*(x) = -Δ(x) + 2Δ(2x) - 1/2Δ(4x)$ and we set $\int_0^T E^*(t)\,dt = 3πT/4 + R(T)$, then we obtain $$ \int_T^{T+H}(E^*(t))^2\,dt \gg HT^{1/3}\log^3T $$ and $$ HT\log^3T \ll \int_T^{T+H}R^2(t)\,dt \ll HT\log^3T, $$ for $T^{2/3+ε}\le H \le T$.
description: 14 pages
Reduced-Rank Space-Time Interference Suppression with Joint Iterative Least Squares Algorithms for Spread Spectrum Systems
Creators: name: de Lamare, Rodrigo C.
name: Sampaio-Neto, Raimundo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper presents novel adaptive space-time reduced-rank interference suppression least squares algorithms based on joint iterative optimization of parameter vectors. The proposed space-time reduced-rank scheme consists of a joint iterative optimization of a projection matrix that performs dimensionality reduction and an adaptive reduced-rank parameter vector that yields the symbol estimates. The proposed techniques do not require singular value decomposition (SVD) and automatically find the best set of basis for reduced-rank processing. We present least squares (LS) expressions for the design of the projection matrix and the reduced-rank parameter vector and we conduct an analysis of the convergence properties of the LS algorithms. We then develop recursive least squares (RLS) adaptive algorithms for their computationally efficient estimation and an algorithm for automatically adjusting the rank of the proposed scheme. A convexity analysis of the LS algorithms is carried out along with the development of a proof of convergence for the proposed algorithms. Simulations for a space-time interference suppression application with a DS-CDMA system show that the proposed scheme outperforms in convergence and tracking the state-of-the-art reduced-rank schemes at a comparable complexity.
description: 8 figures
Salix arbuscula
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: S. arbuscula X glauca - l: Ob der Gorge du Vieux ob Emosson, 2250 m (Coquoz 1921).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
SELF LEARNING VERSUS TRADITIONAL LEARNING FOR NURSING STUDENTS REGARDING SAFETY MEASURES IN EMERGENCY UNIT
Creators: name: KAREMA MOHAMED ADAM
name: FATEN KHAYRT
name: HEMAT ABD EL MONEM
Publisher: name: Zenodo
Year: 2023
Subjects: Self-Learning, Traditionl Learning, Safety Measures, Emergency.

description: Abstract
Self-directed learning necessary for effective lifelong learning and many skills of students are expected to improve. Traditional learning methods are ineffective and passive instructional method. Students' nurses need to be educated and periodically reinforce their knowledge through seminars and workshops to ensure high understanding of how to prevent communicable diseases transmission.. Aim of study: evaluate the self-learning versus traditional learning regarding safety measures in emergency unit. Research Design: A quasi -experimental design was utilized. Setting: The study will be conducted in nursing schools at Abbasiya district (Dar El Shifa School and psychiatric health school). Study sample: A purposive sample was collected; it consisted of 120 students nurses, first class, both genders, Tools: three tool was used pre/post in this study: 1- Structured Interviewing Questionnaire to assess characteristic and knowledge of studied students 2- Observation checklists to assess students, performance post implementation of two learning methods. 3- Students, opinion sheet to assess student's satisfaction regarding self-learning and traditional learning method assess the environment of the school lab. Results: there was a highly statistically significant differences in relation to knowledge about safety in the emergency unit items between pre and post program in self-learning group (P= < 0.001).while, no statistically significant differences in traditional learning group Moreover, there was a positive highly statistically significant correlation between total knowledge and total practices among studied students in self-learning and traditional-learning groups in the post program. Conclusion: In conclusion Implementation of nursing student intervention had positive effect on knowledge, and practices for two groups (self-learning& traditional learning) regarding safety measure in emergency unit. Recommendation: developing educational programs for enhancing students' awareness about safety measures in emergency unit should be a priority in nursing schools to ensure early protective from infection. Raise nursing student's awareness regarding safety measures by using self-learning.
title: Datenqualität und Selektivitäten digitaler Daten: Alte und neue digitale und analoge Datensorten im Vergleich
Creators: name: Baur, Nina
name: Graeff, Peter
Publisher: name: SSOAR -   GESIS Leibniz Institute for the Social Sciences
Year: 2021
Subjects: subject: 10220 Sociology of Science, Sociology of Technology, Research on Science and Technology
subject: data quality
subject: digital divide
subject: empirical social research
subject: data capture
subject: data
subject: power
subject: social inequality

description: Der Begriff "digitale Daten" ist unpräzise, weil in den Sozialwissenschaften spätestens seit den 1960ern Daten nicht nur digital erhoben, verarbeitet und analysiert wurden, sondern in der Forschungspraxis auch oft parallel analoge und digitale Daten erhoben wurden. Am Beispiel der quantitativen Sozialforschung schärft der Beitrag den Begriff der "digitalen Daten" durch die Unterscheidung zwischen forschungsinduzierten, klassischen und neuartigen prozessproduzierten Daten ("Big Data"). Auf dieser Basis zeigen wir, dass klassische Modelle der empirischen Sozialforschung zur Beurteilung der Datenqualität und Selektivitäten von prozessproduzierten Daten - wie etwa das sogenannte Bick-Müller-Modell - auch auf neuartige prozessproduzierte Daten übertragen können, deren Besonderheit es ist, dass sie meist im Kontext des Web 2.0 entstehen und i.d.R. ausschließlich digital sind. Mit Hilfe des Bick-Müller-Modells lassen sich die spezifischen Stärken und Schwächen von neuartigen prozessproduzierten Daten aufzeigen. Allgemein lässt sich festhalten, dass Web 2.0-Daten blinde Flecken aufweisen, insofern dass sowohl im nationalstaatlichen Rahmen, als auch im globalen Kontext große Teile der Bevölkerung keinerlei digitale Spuren hinterlassen. Diese digitalen Ausschlüsse folgen weitgehend herkömmlichen Mustern sozialer Ungleichheit: Im Gegensatz zu jungen, hochgebildeten Männern aus der oberen Mittelschicht in Großstädten des globalen Nordens hinterlassen ältere, geringgebildete Arbeiterfrauen aus dem ländlichen Afrika praktisch keinerlei digitale Spuren. Verwendet man Web 2.0-Daten in der Forschung, besteht damit die Gefahr, dass keinerlei, unvollständige oder verzerrte Informationen über die Personenkreise, die am stärksten sozial benachteiligt werden, gewonnen werden. Weiterhin kommt es zu einer Machtverschiebung hinsichtlich Dateneigentümerschaft vom Staat und der Bevölkerung hin zu multinationalen Konzernen. Dies heißt aber nicht, dass Web 2.0-Daten nicht für die Forschung geeignet sind. Vielmehr werden durch die Anwendung des Bick-Müller-Modells verschiedene analoge und digitale Datensorten miteinander vergleichbar, was wichtig ist, weil - wie die Analyse zeigt - sich nicht allgemein, sondern nur in Bezug auf eine spezifische Forschungsfrage zeigen lässt, welche Daten besser, weniger oder gar nicht geeignet sind.
description: Gesellschaft unter Spannung: Verhandlungen des 40. Kongresses der Deutschen Gesellschaft für Soziologie 2020
Anmerkungen zum Weinstein
Creators: name: Wartchow, Rudolf
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2017
Subjects: subject: Chemie
subject: Weinstein
subject: Kristallstrukturen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Christian Renggli hat unter der Leitung von T. Armbruster, Bern, eine Bachelor-Arbeit mit dem Titel „Mineralogische Untersuchungen an Weinstein“ angefertigt, die sich ausführlich mit den 3 häufigsten Weinsteinsorten befasst. Dieser Arbeit möchte ich nur wenig hinzufügen.
Deformations of constant mean curvature surfaces preserving symmetries and the Hopf differential
Creators: name: Brander, David
name: Dorfmeister, Josef F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: Primary 53A10, Secondary 58D10

description: We define certain deformations between minimal and non-minimal constant mean curvature (CMC) surfaces in Euclidean space $E^3$ which preserve the Hopf differential. We prove that, given a CMC $H$ surface $f$, either minimal or not, and a fixed basepoint $z_0$ on this surface, there is a naturally defined family $f_h$, for all real $h$, of CMC $h$ surfaces that are tangent to $f$ at $z_0$, and which have the same Hopf differential. Given the classical Weierstrass data for a minimal surface, we give an explicit formula for the generalized Weierstrass data for the non-minimal surfaces $f_h$, and vice versa. As an application, we use this to give a well-defined dressing action on the class of minimal surfaces. In addition, we show that symmetries of certain types associated with the basepoint are preserved under the deformation, and this gives a canonical choice of basepoint for surfaces with symmetries. We use this to define new examples of non-minimal CMC surfaces naturally associated to known minimal surfaces with symmetries.
description: 31 pages, 6 figures
A combined flow cell–respiration box to quantify carbon transformation processes in undisturbed soil
Creators: name: Redweik, Henrik
name: Rahlfs, Moritz
name: Bachmann, Jörg
Publisher: name: Hoboken, NJ : Wiley
Year: 2022
Subjects: subject: transport process
subject: turnover process
subject: top- and subsoils
subject: soil matrix
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: A new experimental laboratory design is introduced to analyze and quantify transport and turnover processes in top- and subsoils. The proposed technique allows the monitoring of transformation processes in an undisturbed soil matrix while preserving entirely intact soil particle interfaces. The experimental setup with undisturbed soil samples, which are embedded into two coupled gas sealed chambers, allows on-time measurement of soil respiration processes under realistic moisture, water flux, and temperature conditions.
title: Die polizeilich-publizistische Konstruktion von "Problemvierteln" - und konkurrierende Deutungen
Creators: name: Rinn, Moritz
name: Wehrheim, Jan
Publisher: name: SSOAR -   GESIS Leibniz Institute for the Social Sciences
Year: 2021
Subjects: subject: 10213 Sociology of Settlements and Housing, Urban Sociology
subject: police
subject: city quarter
subject: interactionism
subject: Federal Republic of Germany
subject: stigmatization
subject: image
subject: urban development
subject: criminality
subject: North Rhine-Westphalia

description: In diesem Beitrag analysieren wir am Beispiel des Stadtteils Essen-Altendorf Wechselwirkungen zwischen Situationsbedeutungen, stadtteilimageproduzierenden Diskursen und polizeilichen Interventionen sowie deren Auswirkungen auf Quartiersalltage der 'üblichen Verdächtigen' aus einer symbolisch-interaktionistischen Perspektive. Sichtbar werden polizeilich-publizistische Verstärkerkreisläufe, die weitere, tendenziell restriktive polizeiliche und stadtpolitische Interventionen neu legitimieren. Entsprechende Politiken reproduzieren dabei jedoch nicht nur die 'Problematik' und 'Gefährlichkeit' eines Stadtteils und damit die Stigmatisierung der Bewohner*innen, sie evozieren auch Ambivalenzen und konkurrierende Problemkonstruktionen und insofern auch Gegenerzählungen.
description: Gesellschaft unter Spannung: Verhandlungen des 40. Kongresses der Deutschen Gesellschaft für Soziologie 2020
title: Единая база данных «Топонимия России» как способ интеграции региональных знаний
Creators: name: Гордова, Юлианна
Publisher: name: Новгородский печатный двор
Year: 2019

description: Единая база данных «Топонимия России», функционирующая в сети Интернет с 2014 г., является одним из доступных способов интеграции региональных знаний. Анализ работы ресурса за пять лет затрагивает такие вопросы, как круг пользователей, география участников проекта, надежность программного обеспечения, преимущества использования системы.
title: Das lokale Emplacement von alltäglich geteilter Solidarität
Creators: name: Kahle, Patrick
name: Corsten, Michael
Publisher: name: SSOAR -   GESIS Leibniz Institute for the Social Sciences
Year: 2021
Subjects: subject: 10213 Sociology of Settlements and Housing, Urban Sociology
subject: involvement
subject: solidarity
subject: migration
subject: integration
subject: urbanity
subject: honorary office
subject: citizens' involvement

description: Basierend auf Daten eines laufenden Forschungsprojektes werden drei urbane Zentren und deren "suburban hinterland" (Cooke 1989, S. 263) vergleichend betrachtet. Durch historische Gegebenheiten (Deutsche Teilung), topographisch-infrastrukurelle Merkmale, Kapitalakkumulationen und unterschiedliche Migrationsgeschichten entwickelten sich unterschiedliche 'Sedimente' sozio-politischer Charakteristik und kulturelle Spezifitäten (sensu Cooke 2009). Fassen wir Solidarität (sensu Sangiovanni 2015) als alltäglich innerhalb einer lokalen Gemeinschaft erzeugte Beiträge zur Bearbeitung wahrgenommener Widrigkeiten, dann bestehen je nach regionaler Konstellation unterschiedliche Grundlagen, seitens institutionalisierter Akteure auf Widrigkeiten im Zuge der Flüchtlingskrise zu reagieren. Dieser doppelte Vergleich - einerseits urbane Zentren und ihr 'hinterland', anderseits unterschiedlich situierte Städte - erfolgt anhand von Interviews mit Ehrenamtlichen, Ehrenamtskoordinator/-innen, Sozialen Diensten und Verwaltungsangestellten in Bereichen von Migration und Integration. Es zeigen sich dabei an nahezu allen Orten die gleichen Varianten von Engagementformen, die unspektakuläre Begegnungen (Meier 2019; Wehrheim 2009) zwischen neuzugewanderten und alteingesessenen Bewohner/-innen ermöglichen sollen. Wie sich allerdings Prozesse des Emplacements als geteilte Alltagspraxis gestalten und dauerhaft etablierten, variiert zwischen den Lokalitäten in einem beobachtbaren Maße. In den untersuchten lokalen Engagementformen manifestieren sich spezifische Machtzugänge und Machtverhältnisse, die zugleich unterschiedliche Solidaritätsverständnisse und Praktiken wie Prozesse des Emplacement (Çağlar, Glick Schiller 2018) begünstigen. Im Beitrag gehen wir zum einen ersten Befunde zu den Zusammenhängen zwischen den Solidaritätsverständnissen und den geteilten Alltagspraktiken unterschiedlicher Lokalitäten und zum anderen wie - im Sinne von City Making (Çağlar, Glick Schiller 2018) - durch Emplacement/Displacement sich diese Lokalitäten verändern nach.
description: Gesellschaft unter Spannung: Verhandlungen des 40. Kongresses der Deutschen Gesellschaft für Soziologie 2020
Curvature spectra of simple Lie groups
Creators: name: Derdzinski, Andrzej
name: Gal, Swiatoslaw R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 17B20, 22E46, 53C30

description: The Killing form β of a real (or complex) semisimple Lie group G is a left-invariant pseudo-Riemannian (or, respectively, holomorphic) Einstein metric. Let Ω denote the multiple of its curvature operator, acting on symmetric 2-tensors, with the factor chosen so that Ωβ=2β. The result of Meyberg [8], describing the spectrum of Ω in complex simple Lie groups G, easily implies that 1 is not an eigenvalue of Ω in any real or complex simple Lie group G except those locally isomorphic to SU(p,q), or SL(n,R), or SL(n,C) or, for even n only, SL(n/2,H), where p\ge q\ge0 and p+q=n>2. Due to the last conclusion, on simple Lie groups G other the ones just listed, nonzero multiples of the Killing form β are isolated among left-invariant Einstein metrics. Meyberg's theorem also allows us to understand the kernel of Λ, which is another natural operator. This in turn leads to a proof of a known, yet unpublished, fact: namely, that a semisimple real or complex Lie algebra with no simple ideals of dimension 3 is essentially determined by its Cartan three-form.
description: 10 pages
Readability of informed consent forms for whole-exome and whole-genome sequencing
Creators: name: Niemiec, Emilia
name: Vears, Danya F.
name: Borry, Pascal
name: Howard, Heidi Carmen
Publisher: name: Heidelberg : Springer Verlag
Year: 2017
Subjects: subject: Genetic counselling
subject: Informed consent
subject: Readability
subject: Whole exome sequencing
subject: Whole genome sequencing
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Whole-exome and whole-genome sequencing (WES, WGS) can generate an unprecedented amount of complex information, making the informed consent (IC) process challenging. The aim of our study was to assess the readability of English IC forms for clinical whole-exome and whole-genome sequencing using the SMOG and Flesch-Kincaid formulas. We analysed 36 forms, most of which were from US providers. The median readability grade levels were 14.75 (the SMOG formula) and 12.2 (the Flesch-Kincaid formula); these values indicate the years of education after which a person would be able to understand a text studied. All forms studied seem to fail to meet the average recommended readability grade level of 8 (e.g. by Institutional Review Boards of US medical schools) for IC forms, indicating that the content of the forms may not be comprehensible to many patients. The sections aimed at health care professionals (HCPs) in the forms indicate that HCPs should be responsible for explaining IC information to the patients. However, WES and WGS may be increasingly offered by primary care professionals who may not (yet) have sufficient training to be able to communicate effectively with patients about genomics. Therefore, to secure an adequate, truly informed consent process, the task of developing good, legible examples of IC forms along with educating HCPs in genomics should be taken seriously, and adequate resources should be allocated to enable these tasks.
From the microscopic to the van Hove regime in the XY chain out of equilibrium
Creators: name: Aschbacher, Walter H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences
subject: 46L60, 47B15, 82C10, 82C23

description: Using the framework of rigorous algebraic quantum statistical mechanics, we construct the unique nonequilibrium steady state in the isotropic XY chain in which a sample of arbitrary finite size is coupled by a bond coupling perturbation of arbitrary strength to two infinitely extended thermal reservoirs, and we prove that this state is thermodynamically nontrivial. Moreover, extracting the leading second order contribution to its microscopic entropy production and deriving its entropy production in the van Hove weak coupling regime, we prove that, in the mathematically and physically important XY chain, the van Hove regime reproduces the leading order contribution to the microscopic regime.
description: 44 pages, 2 figures
DELO-Bezier formal solutions of the polarized radiative transfer equation
Creators: name: Rodríguez, J. de la Cruz
name: Piskunov, N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present two new accurate and efficient method to compute the formal solution of the polarized radiative transfer equation. In this work, the source function and the absorption matrix are approximated using quadratic and cubic Bezier spline interpolants. These schemes provide 2nd and 3rd order approximation respectively and don't suffer from erratic behavior of the polynomial approximation (overshooting). The accuracy and the convergence of the new method are studied along with other popular solutions of the radiative transfer equation, using stellar atmospheres with strong gradients in the line-of-sight velocity and in the magnetic-field vector.
description: Accepted for publication in ApJ
Investigating the strain, temperature and humidity sensitivity of a multimode graded-index perfluorinated polymer optical fiber with bragg grating
Creators: name: Zheng, Yulong
name: Bremer, Kort
name: Roth, Bernhard
Publisher: name: Basel : MDPI AG
Year: 2018
Subjects: subject: Fiber bragg gratings
subject: Humidity sensing
subject: Perfluorinated polymer optical fiber
subject: Strain
subject: Temperature
subject: Excimer lasers
subject: Fluorine compounds
subject: Humidity sensors
subject: Infrared devices
subject: Irradiation
subject: Multimode fibers
subject: Optical fibers
subject: Plastic optical fibers
subject: Polymers
subject: Interrogation techniques
subject: Near-infrared wavelength
subject: Perfluorinated polymers
subject: Reflection spectra
subject: Spectral envelopes
subject: Strain sensitivity
subject: Temperature and humidities
subject: Fiber Bragg gratings
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: In this work we investigate the strain, temperature and humidity sensitivity of a Fiber Bragg Grating (FBG) inscribed in a near infrared low-loss multimode perfluorinated polymer optical fiber based on cyclic transparent optical polymer (CYTOP). For this purpose, FBGs were inscribed into the multimode CYTOP fiber with a core diameter of 50 µm by using a krypton fluoride (KrF) excimer laser and the phase mask method. The evolution of the reflection spectrum of the FBG detected with a multimode interrogation technique revealed a single reflection peak with a full width at half maximum (FHWM) bandwidth of about 9 nm. Furthermore, the spectral envelope of the single FBG reflection peak can be optimized depending on the KrF excimer laser irradiation time. A linear shift of the Bragg wavelength due to applied strain, temperature and humidity was measured. Furthermore, depending on irradiation time of the KrF excimer laser, both the failure strain and strain sensitivity of the multimode fiber with FBG can be controlled. The inherent low light attenuation in the near infrared wavelength range (telecommunication window) of the multimode CYTOP fiber and the single FBG reflection peak when applying the multimode interrogation set-up will allow for new applications in the area of telecommunication and optical sensing.