cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Differences between winter oilseed rape (Brassica napus L.) cultivars in nitrogen starvation-induced leaf senescence are governed by leaf-inherent rather than root-derived signals
Creators: name: Koeslin-Findeklee, Fabian
name: Becker, Martin A.
name: Van Der Graaff, Eric
name: Roitsch, Thomas
name: Horst, Walter J.
Publisher: name: Oxford : Oxford University Press
Year: 2015
Subjects: subject: Brassica napus
subject: cytokinins
subject: genotypic differences
subject: leaf senescence
subject: nitrogen efficiency
subject: nitrogen starvation
subject: reciprocal grafting
subject: stay-green.
subject: Photosynthesis
subject: Cultivar
subject: Chlorophyll
subject: Brassica
subject: Photosynthetic capacity
subject: Zeatin
subject: Senescence
subject: Botany
subject: Apex (geometry)
subject: Biology
subject: Dewey Decimal Classification::500 | Naturwissenschaften::580 | Pflanzen (Botanik)

description: Nitrogen (N) efficiency of winter oilseed rape (Brassica napus L.) line-cultivars (cvs.), defined as high grain yield under N limitation, has been primarily attributed to maintained N uptake during reproductive growth (N uptake efficiency) in combination with delayed senescence of the older leaves accompanied with maintained photosynthetic capacity (functional stay-green). However, it is not clear whether genotypic variation in N starvation-induced leaf senescence is due to leaf-inherent factors and/or governed by root-mediated signals. Therefore, the N-efficient and stay-green cvs. NPZ-1 and Apex were reciprocally grafted with the N-inefficient and early-senescing cvs. NPZ-2 and Capitol, respectively and grown in hydroponics. The senescence status of older leaves after 12 days of N starvation assessed by SPAD, photosynthesis and the expression of the senescence-specific cysteine protease gene SAG12-1 revealed that the stay-green phenotype of the cvs. NPZ-1 and Apex under N starvation was primarily under the control of leaf-inherent factors. The same four cultivars were submitted to N starvation for up to 12 days in a time-course experiment. The specific leaf contents of biologically active and inactive cytokinins (CKs) and the expression of genes involved in CK homeostasis revealed that under N starvation leaves of early-senescing cultivars were characterized by inactivation of biologically active CKs, whereas in stay-green cultivars synthesis, activation, binding of and response to biologically active CKs were favoured. These results suggest that the homeostasis of biologically active CKs was the predominant leaf-inherent factor for cultivar differences in N starvation-induced leaf senescence and thus N efficiency.
Normal state spin dynamics in the iron-pnictide superconductors BaFe2(As1-xPx)2 and Ba(Fe1-xCox)2As2 probed with NMR measurements
Creators: name: Nakai, Y.
name: Iye, T.
name: Kitagawa, S.
name: Ishida, K.
name: Kasahara, S.
name: Shibauchi, T.
name: Matsuda, Y.
name: Ikeda, H.
name: Terashima, T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The NMR results in iron pnictides BaFe2(As1-xPx)2 and Ba(Fe1-xCox)2As2 are analyzed based on the self-consistent renormalization (SCR) spin fluctuation theory. The temperature dependence of the NMR relaxation rate (T_1)^{-1} as well as the electrical resistivity is well reproduced by a SCR model where two-dimensional antiferromagnetic (AF) spin fluctuations are dominant. The successful description of the crossover feature from non-Fermi liquid to Fermi liquid behavior strongly suggests that low-lying spin fluctuations in BaFe2(As1-xPx)2 and Ba(Fe1-xCox)2As2 possess an itinerant AF nature, and that chemical substitution in the two compounds tunes the distance of these systems to an AF quantum critical point. The close relationship between spin fluctuations and superconductivity is discussed compared with the other unconventional superconductors, cuprate and heavy fermion superconductors. In addition, it is suggested that magnetism and lattice instability in these pnictides are strongly linked via orbital degrees of freedom.
description: 11 pages, 14 figures
Type II hidden symmetries for the homogeneous heat equation in some general classes of Riemannian spaces
Creators: name: Tsamparlis, Michael
name: Paliathanasis, Andronikos
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study the reduction of the heat equation in Riemannian spaces which admit a gradient Killing vector, a gradient homothetic vector and in Petrov Type D,N,II and Type III space-times. In each reduction we identify the source of the Type II hidden symmetries. More specifically we find that a) If we reduce the heat equation by the symmetries generated by the gradient KV the reduced equation is a linear heat equation in the nondecomposable space. b) If we reduce the heat equation via the symmetries generated by the gradient HV the reduced equation is a Laplace equation for an appropriate metric. In this case the Type II hidden symmetries are generated from the proper CKVs. c) In the Petrov spacetimes the reduction of the heat equation by the symmetry generated from the nongradient HV gives PDEs which inherit the Lie symmetries hence no Type II hidden symmetries appear. We apply the general results to cases in which the initial metric is specified. We consider the case that the irreducible part of the decomposed space is a space of constant nonvanishing curvature and the case of the spatially flat Friedmann-Robertson-Walker space time used in Cosmology. In each case we give explicitly the Type II hidden symmetries provided they exist.
description: 18 pages, Accepted for publication in Journal of Geometry and Physics
$Zγγγ\to 0$ processes in SANC
Creators: name: Bardin, D.
name: Kalinovskaya, L.
name: Uglov, E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we describe the analytic and numerical evaluation of the $γγ\to γZ$ process cross section and the $Z\to γγγ$ decay rate within the SANC system multi-channel approach at the one-loop accuracy level with all masses taking into account. The corresponding package for numeric calculations is presented. For checking of the results correctness we make a comparison with other independent calculations.
description: 14 pages, 6 figures
Privacy Concerns in Responses to Sensitive Questions. A Survey Experiment on the Influence of Numeric Codes on Unit Nonresponse, Item Nonresponse, and Misreporting
Creators: name: Bader, Felix
name: Bauer, Johannes
name: Kroher, Martina
name: Riordan, Patrick
Publisher: name: Mannheim : GESIS - Leibniz Institute for the Social Sciences
Year: 2016
Subjects: subject: questionnaire design
subject: scanner codes
subject: sensitive questions
subject: tailored design
subject: unit nonresponse
subject: item nonresponse
subject: misreporting
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie

description: Paper-and-pencil surveys are a widely used method for gaining data. Numeric codes printed on the questionnaire are often a prerequisite for the use of scan software, which, in turn, permits a fast and efficient entering of the data from such surveys. However, printed numbers used for optical mark recognition on a questionnaire can provoke concerns about anonymity that may lead to unit nonresponse, item nonresponse, and misreporting. To test this, we conducted an experiment in a mail survey on group-focused enmity. printing a scanner code on half of the questionnaires. Our results show no significant deviation concerning unit nonresponse. We find a higher item nonresponse and misreporting bias towards socially desirable answers in sensitive questions if the questionnaire is marked with a code. The influence of biased responses on regression results is minor. If the numeric code is brought to the respondents' attention in the cover letter, regression coefficients might be affected. Therefore we conclude that researchers should trade off these small biases against the usefulness of the code. From a methodological perspective, we recommend not to make a statement concerning the numeric code in the cover letter. Our results are of relevance for researchers conducting paper-and-pencil surveys as well as for those analyzing data sets from these surveys. While this article analyzes biases caused by scanner codes, the results are potentially transferable to printed identification numbers used in panel studies, in survey experiments, or to match paradata or context data.
X-Shooter spectroscopy of young stellar objects: II. Impact of chromospheric emission on accretion rate estimates
Creators: name: Manara, C. F.
name: Testi, L.
name: Rigliaco, E.
name: Alcala, J. M.
name: Natta, A.
name: Stelzer, B.
name: Biazzo, K.
name: Covino, E.
name: Covino, S.
name: Cupani, G.
name: D'Elia, V.
name: Randich, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. The lack of knowledge of photospheric parameters and the level of chromospheric activity in young low-mass pre-main sequence stars introduces uncertainties when measuring mass accretion rates in accreting (Class II) Young Stellar Objects. A detailed investigation of the effect of chromospheric emission on the estimates of mass accretion rate in young low-mass stars is still missing. This can be undertaken using samples of young diskless (Class III) K and M-type stars. Aims. Our goal is to measure the chromospheric activity of Class III pre main sequence stars to determine its effect on the estimates of accretion luminosity (Lacc) and mass accretion rate (Macc) in young stellar objects with disks. Methods. Using VLT/X-Shooter spectra we have analyzed a sample of 24 non-accreting young stellar objects of spectral type between K5 and M9.5. We identify the main emission lines normally used as tracers of accretion in Class II objects, and we determine their fluxes in order to estimate the contribution of the chromospheric activity to the line luminosity. Results. We have used the relationships between line luminosity and accretion luminosity derived in the literature for Class II objects to evaluate the impact of chromospheric activity on the accretion rate measurements. We find that the typical chromospheric activity would bias the derived accretion luminosity by Lacc,noise< 10-3Lsun, with a strong dependence with the Teff of the objects. The noise on Macc depends on stellar mass and age, and the typical values of log(Macc,noise) range between -9.2 to -11.6Msun/yr. Conclusions. Values of Lacc< 10-3Lsun obtained in accreting low-mass pre main sequence stars through line luminosity should be treated with caution as the line emission may be dominated by the contribution of chromospheric activity.
description: accepted for publication in Astronomy & Astrophysics
Charakterisierung des mutierten [beta]-Catenins als Zielantigen für eine immuntherapeutische Intervention bei kolorektalen Karzinomen
Creators: name: Hans, Margrit Airin
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: Beta-catenin
subject: colon carcinoma
subject: vaccination
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
Untersuchungen zur Auslegung und zum Betriebsverhalten eines fliehkraftgesteuerten frequenzvariablen Drehschwingungstilgers
Creators: name: Baron, Joachim
Publisher: name: Hannover : Universität
Year: 2000
Subjects: subject: Vibration absorber
subject: frequency tuning
subject: centrifugal governor
subject: Dewey Decimal Classification::600 | Technik

description: [no abstract]
Quantum Storage and Retrieval of Light by Sweeping the Atomic Frequency
Creators: name: Kaviani, Hamidreza
name: Khazali, Mohammad
name: Ghobadi, Roohollah
name: Zahedinejad, Ehsan
name: Heshami, Khabat
name: Simon, Christoph
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a quantum memory protocol based on dynamically changing the resonance frequency of an ensemble of two-level atoms. By sweeping the atomic frequency in an adiabatic fashion, photons are reversibly transferred into atomic coherences. We present a polaritonic description for this type of storage, which shares some similarities with Electromagnetically Induced Transparency (EIT) based quantum memories. On the other hand the proposed memory is also linked to the Gradient Echo Memory (GEM) due to the effective spatial gradient that pulses experience in the medium. We discuss a possible implementation of the protocol in hollow-core photonic crystal fibers.
description: 15 pages, 8 figures
A Very Long Baseline Interferometry Detection of the Class I Protostar IRS 5 in Corona Australis
Creators: name: Deller, Adam T.
name: Forbrich, Jan
name: Loinard, Laurent
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Aims: Very Long Baseline Interferometry yields physical constraints on the compact radio emission of young stellar objects. At the same time, such measurements can be used for precise astrometric measurements of parallaxes and proper motions. Here, we aimed to make the first detections of very compact radio emission from class I protostars in the Corona Australis star-forming region. Methods: We have used the Long Baseline Array (LBA) to observe the protostars IRS 5 and IRS 7 in the Corona Australis star-forming region in three separate epochs Results: We report the first firm radio detection of a class I protostar using very long baseline interferometry. We have detected the previously known non-thermal source IRS 5b, part of a binary system. IRS 5a and IRS 5N were undetected, as were all sources in the IRS 7 region. Conclusions: These results underline the unusual nature of IRS 5b as a genuine protostar with confirmed non-thermal radio emission. Also, these observations highlight the potential of the LBA as a tool to provide precision astrometric measurements of individual young stellar objects in southern star-forming regions that are not accessible to the Very Long Baseline Array in the northern hemisphere.
description: 5 pages, 3 figures, accepted in Astronomy & Astrophysics
Kofaktoren von c-Myb
Creators: name: Haas, Martin
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: c-Myb
subject: co-factors
subject: protein-protein-interaction
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
title: Математика. Ч.1
Creators: name: ELS IPR BOOKS
Publisher: name: Книта
Year: 2021

description: Учебно-методическое пособие содержит теоретический и практический материал для освоения трех фундаментальных разделов программы учебной дисциплины «Математика». Содержание пособия направлено на качественное усвоение теоретического материала учебной дисциплины, овладение студентами определенных практических умений и навыков, совершенствование самостоятельной работы. Данное учебное издание предназначено для студентов очной и заочной форм обучения по направлениям подготовки 44.03.01 «Педагогическое образование. Начальное образование», 44.03.05 «Педагогическое образование (с двумя профилями подготовки). Начальное образование. Английский язык».
Synthese, Funktionalisierung und Verwendung von Chlorsiloxanpartikeln : Funktionalisierung von Oberflächen oxidischer Materialien
Creators: name: Giesenberg, Thomas
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: Gas phase reactions
subject: chlorosiloxanes
subject: surface functionalisation
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Visualizing Astronomical Data with Blender
Creators: name: Kent, Brian R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Graphics (cs.GR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Astronomical data take on a multitude of forms -- catalogs, data cubes, images, and simulations. The availability of software for rendering high-quality three-dimensional graphics lends itself to the paradigm of exploring the incredible parameter space afforded by the astronomical sciences. The software program Blender gives astronomers a useful tool for displaying data in a manner used by three-dimensional (3D) graphics specialists and animators. The interface to this popular software package is introduced with attention to features of interest in astronomy. An overview of the steps for generating models, textures, animations, camera work, and renders is outlined. An introduction is presented on the methodology for producing animations and graphics with a variety of astronomical data. Examples from sub-fields of astronomy with different kinds of data are shown with resources provided to members of the astronomical community. An example video showcasing the outlined principles and features is provided along with scripts and files for sample visualizations.
description: 39 pages, 18 figures. Accepted for publication in the Publications of the Astronomical Society of the Pacific (PASP). A high resolution copy and figures are available at http://www.cv.nrao.edu/~bkent/computing/kentPASP.html along with a companion video, tutorials, and examples
Digital Signal Analysis based on Convolutional Neural Networks for Active Target Time Projection Chambers
Creators: name: Fortino, G. F.
name: Zamora, J. C.
name: Tamayose, L. E.
name: Hirata, N. S. T.
name: Guimaraes, V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: Nuclear Experiment (nucl-ex)
subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: An algorithm for digital signal analysis using convolutional neural networks (CNN) was developed in this work. The main objective of this algorithm is to make the analysis of experiments with active target time projection chambers more efficient. The code is divided in three steps: baseline correction, signal deconvolution and peak detection and integration. The CNNs were able to learn the signal processing models with relative errors of less than 6\%. The analysis based on CNNs provides the same results as the traditional deconvolution algorithms, but considerably more efficient in terms of computing time (about 65 times faster). This opens up new possibilities to improve existing codes and to simplify the analysis of the large amount of data produced in active target experiments.
Recent Results on Douglas-Rachford Methods for Combinatorial Optimization Problems
Creators: name: Artacho, Francisco J. Aragón
name: Borwein, Jonathan M.
name: Tam, Matthew K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optimization and Control (math.OC)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 90C27, 90C59, 47N10

description: We discuss recent positive experiences applying convex feasibility algorithms of Douglas--Rachford type to highly combinatorial and far from convex problems.
Dynamics of the solar tachocline III: Numerical solutions of the Gough and McIntyre model
Creators: name: Acevedo-Arreguin, Luis A.
name: Garaud, Pascale
name: Wood, Toby S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the first numerical simulations of the solar interior to exhibit a tachocline consistent with the Gough and McIntyre (1998) model. We find nonlinear, axisymmetric, steady-state numerical solutions in which: (1) a large-scale primordial field is confined within the radiation zone by downwelling meridional flows that are gyroscopically pumped in the convection zone (2) the radiation zone is in almost-uniform rotation, with a rotation rate consistent with observations (3) the bulk of the tachocline is magnetic free, in thermal-wind balance and in thermal equilibrium and (4) the interaction between the field and the flows takes place within a very thin magnetic boundary layer, the tachopause, located at the bottom of the tachocline. We show that the thickness of the tachocline scales with the amplitude of the meridional flows exactly as predicted by Gough and McIntyre. We also determine the parameter conditions under which such solutions can be obtained, and provide a simple explanation for the failure of previous numerical attempts at reproducing the Gough and McIntyre model. Finally, we discuss the implications of our findings for future numerical models of the solar interior, and for future observations of the Sun and other stars.
description: 49 pages, 18 figures
Multilayer ion trap technology for scalable quantum computing and quantum simulation
Creators: name: Bautista-Salvador, A.
name: Zarantonello, G.
name: Hahn, H.
name: Preciado-Grijalva, A.
name: Morgner, J.
name: Wahnschaffe, M.
name: Ospelkaus, C.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2019
Subjects: subject: atom chip
subject: microfabrication
subject: quantum logic and simulation
subject: surface-electrode ion trap
subject: Computation theory
subject: Laser cooling
subject: Microfabrication
subject: Microwave circuits
subject: Multilayers
subject: Quantum chemistry
subject: Quantum computers
subject: Quantum optics
subject: Atom chips
subject: Fabrication method
subject: Ion traps
subject: Microwave circuitry
subject: Quantum logic
subject: Quantum simulations
subject: Scalable quantum computing
subject: Scalable quantum information
subject: Ions
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We present a novel ion trap fabrication method enabling the realization of multilayer ion traps scalable to an in principle arbitrary number of metal-dielectric levels. We benchmark our method by fabricating a multilayer ion trap with integrated three-dimensional microwave circuitry. We demonstrate ion trapping and microwave control of the hyperfine states of a laser cooled 9Be+ ion held at a distance of 35 above the trap surface. This method can be used to implement large-scale ion trap arrays for scalable quantum information processing and quantum simulation.
Gangs can gnas mchog gsum gyi dran rten
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2020
Subjects: Pilgrims and pilgrimages
Panchen lamas

description: Poster featuring Tenth Panchen Lama above a lake (Qinghai Lake?) and superimposed on a photo of a monastery-- also lists other pilgrimage sites and features wildlife, conveys well wishes to pilgrims.
Pema Jungne or "Lotus Born" form of Padmasambhava
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2020
Subjects: Buddhism
Gods
Rnying-ma-pa (Sect)

description: Unmounted Tibetan woodblock print depicting Padmasambhava in the Pema Jungne form with a flat pandita hat. In particular, this is the Pema Jungne form of Padmasambhava.
WindGISKI : Kann KI neue Flächen für Windenergieanlagen finden?
Creators: name: Piel, Jan-Hendrik
name: Bohne, Tobias
name: Rolfes, Raimund
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]
Essays on the determinants of tax morale in developing countries
Creators: name: Jahnke, Björn
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2017
Subjects: subject: Tax morale
subject: functional literacy
subject: institutions
subject: developing countries
subject: Steuermoral
subject: funktionale Bildung
subject: Institutionen
subject: Entwicklungsländer
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: [no abstract]
Microscopic study of neutron-rich Dysprosium isotopes
Creators: name: Vargas, Carlos E.
name: Velazquez, Victor
name: Lerma, Sergio
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Microscopic studies in heavy nuclei are very scarce due to large valence spaces involved. This computational problem can be avoided by means of the use of symmetry based models. Ground-state, gamma and beta-bands, and their B(E2) transition strengths in 160-168Dy isotopes, are studied in the framework of the pseudo-SU(3) model which includes the preserving symmetry Q.Q term and the symmetry-breaking Nilsson and pairing terms, systematically parametrized. Additionally, three rotor-like terms are considered whose free parameters, fixed for all members of the chain are used to fine tune the moment of inertia of rotational bands and the band-head of gamma and beta-bands. The model succesfully describes in a systematic way rotational features in these nuclei and allows to extrapolate toward the midshell nucleus 170Dy. The results presented show that it is possible to study full chain of isotopes or isotones in the region with the present model.
title: Familiensprachpolitik zwischen Spracherwerb und Spracherhalt: Ergebnisse zu den Perspektiven von Kindern aus dem Lehrforschungsprojekt „Family Language Policy in Deutschland (FaMiLanG)“
Creators: name: Panagiotopoulou, Julie A.
name: Uçan, Yasemin
name: Samani, Diana
Publisher: name: Universitäts- und Landesbibliothek Darmstadt
Year: 2023

description: Vor dem Hintergrund öffentlich-medialer und bildungspolitischer Debatten um Leitbilder ‚guter‘ Kindheiten ist eine Kontinuität defizitorientierter Perspektiven auf Kinder (und ihre Eltern) im Kontext von Migration zu verzeichnen, die sich u.a. auf vermeintliche Sprachdefizite aufgrund ihrer familialen Mehrsprachigkeit beziehen. Während durch die institutionelle Sprachenpolitik im Bildungssystem v.a. der Erwerb der ‚Bildungssprache Deutsch‘ im Fokus sprachpädagogischer Maßnahmen steht, verfolgen Eltern zudem den Erwerb von ‚nicht-deutschen‘ Familiensprachen sowie die kindliche Mehrsprachigkeit als dezidiertes Erziehungsziel. Kinder sind somit in Auseinandersetzung mit den Sprachenpolitiken der Familie und Bildungsinstitutionen zu betrachten, zu denen sie sich positionieren (müssen). Unter Bezugnahme auf den Family Language Policy-Ansatz (FLP) sowie auf Ansätze aus der Kindheitsforschung wird im vorliegenden Beitrag derFrage nachgegangen, wie ausgewählte Familienmitglieder (Kinder und heutige Jugendliche) die mehrsprachige Lebenswelt in ihrer Familie während ihrer Kindheit erleb(t)en und wie sie sich dazu positionieren. Die empirische Grundlage bilden Interviews mit Kindern aus zwei mehrsprachigen Familien, die im Rahmen des Lehrforschungsprojekts FaMiLanG an der Universität zu Köln geführt und analysiert wurden.
Mean-field granocentric approach in 2D & 3D polydisperse, frictionless packings
Creators: name: O'Donovan, C. B.
name: Corwin, E. I.
name: Möbius, M. E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We have studied the contact network properties of two and three dimensional polydisperse, frictionless sphere packings at the random closed packing density through simulations. We observe universal correlations between particle size and contact number that are independent of the polydispersity of the packing. This allows us to formulate a mean field version of the granocentric model to predict the contact number distribution P(z). We find the predictions to be in good agreement with a wide range of discrete and continuous size distributions. The values of the two parameters that appear in the model are also independent of the polydispersity of the packing. Finally we look at the nearest neighbour spatial correlations to investigate the validity of the granocentric approach. We find that both particle size and contact number are anti-correlated which contrasts with the assumptions of the granocentric model. Despite this shortcoming, the correlations are sufficiently weak which explains the good approximation of P(z) obtained from the model.
description: 27 pages, 18 figures
Sgrol ma tsitta ma Ni la brten pa'i mthun mong ma yin pa'i bla ma'i rnal 'byor thar par bgrod pa'i them skas zhes bya ba bzhugs so
Creators: name: Blo-Bzaṅ-Chos-Kyi-Dbaṅ-Phyug, Stag-Phu Sprul-Sku
Publisher: name: Columbia University
Year: 2020
Subjects: Buddhism--Rituals--Texts
Cults

description: Illuminated Tibetan manuscript of a Cittamani Tārā sadhana, a yogic practice focusing on the tutelary Tārā Cittamani, with esoteric instruction according to the Geluk (Tib. Dge-lugs-pa) order.
LCL-Filter Dimensionierung für Vierleiter-Gleichspannungsstromrichter mit Akitv-Filter Funktionalität
Creators: name: Hoepfner, Benjamin
name: Vick, Ralf
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: Gleichspannungsstromrichter (kurz: Stromrichter) halten seit geraumer Zeit verstärkt Einzug in das Energieversorgungsnetz. Allen gemein ist die Wandlung von elektrischer Energie aus einem Gleichspannungszwischenkreis hin zu einer Wechselspannung mit Netzfrequenz. Durch schnell taktende Schalter wird die Gleichspannung auf den Ausgang des Stromrichters moduliert, die im Mittel eine sinusförmige Spannung nachbildet. Ein induktiver Ausgangsfilter dient der Begrenzung des Stromanstiegs [1]. Reine L-Filter können jedoch schnell sehr groß, schwer und teuer werden, weswegen sich sog. LCL-Filter etabliert haben. Zur Einspeisung unsymmetrischer Ströme ist es notwendig, den Stromrichter und dessen Filter an einen vierten Leiter (Neutralleiter) anzubinden. Die nachfolgende Abbildung 1 zeigt einen netzgebundenen Vierleiter-Gleichspannungsstromrichter mit aufgeteilter Zwischenkreisspannung und LCL Ausgangsfilter. Lc und Lgf sind die stromrichter- und netzseitigen Induktivitäten, Ls die Netzinduktivität, Cf die Filterkapazität, Czk die Zwischenkreiskapazitäten und Lc,N sowie Ls,N die Neutralleiterinduktivitäten des Stromrichters und des Netzes. Alle Induktivitäten sowie die Filterkapazität sind mit jeweiligen Resistanzen dargestellt. Aufgrund der verschiedenen Parameter sind unendlich viele Kombinationen zur Erreichung des Ziels der Dämpfung, der ins Netz emittierten Stromrippel, möglich. Die überwiegende Mehrheit an Veröffentlichungen beschäftigt sich mit der Auslegung und Regelung des Filters für dreiphasige Topologien [2–5]. Wenige widmen sich einer Vierleitertopologie [6] oder der Auslegung für aktive Filter [7]. Die Minderheit der Veröffentlichungen untersuchen Stromrichter mit Vierleiter-Topologie in Kombination mit aktiver Filterfunktion [8]. Dieser Beitrag untersucht deshalb die Eigenschaften des LCL-Filters für Vierleiter-Gleichspannungsstromrichter mit aufgeteiltem Zwischenkreis und aktiven Filterfunktionen und liefert Vorschläge zu dessen Dimensionierung unter Berücksichtigung verschiedener Einflussfaktoren.
Essays on the problem of distinguishing between long memory and nonlinear time series
Creators: name: Kuswanto, Heri
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2009
Subjects: subject: Spurious long memory
subject: nonlinear
subject: directed-Wald
subject: aggregation
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: [no abstract]
title: Männlichkeit verraten?! Kim Posster über das Scheitern gegenwärtiger Männlichkeitskritik
Creators: name: Niendorf, Johanna
name: Posster, Kim
Publisher: name: DuEPublico
Year: 2023
Subjects: classificationCode: 5
subject: FOS: Social sciences
subject: Gender studies

description: Angesichts der Permanenz sexistischer Verhältnisse, frauenfeindlicher und sexueller Gewalt wird insbesondere von feministischer Seite immer wieder eine kritische Auseinandersetzung mit Männlichkeit gefordert. Unter dem Begriff der ‚kritischen Männlichkeit‘ versammeln sich Ansätze, Gruppen und Initiativen, die versuchen, die Kritik in die Praxis umzusetzen. Warum aktuelle Formen der Männlichkeitskritik jedoch oft den Kern des Problems verfehlen und welche Alternativen es zum aktuellen Profeminismus gäbe, zeigt Kim Posster in seinem Essay Männlichkeit verraten! Über das Elend der ‚Kritischen Männlichkeit‘. Die Sozialwissenschaftlerin Johanna Niendorf sprach mit dem Autor über sein Buch.
The generalized Kupershmidt deformation for constructing new discrete integrable systems
Creators: name: Huang, Yehui
name: Lin, Runliang
name: Yao, Yuqin
name: Zeng, Yunbo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: KdV6 equation can be described as the Kupershmidt deformation of the KdV equation (see 2008, Phys. Lett. A 372: 263). In this paper, starting from the bi-Hamiltonian structure of the discrete integrable system, we propose a generalized Kupershmidt deformation to construct new discrete integrable systems. Toda hierarchy, Kac-van Moerbeke hierarchy and Ablowitz-Ladik hierarchy are considered. The Lax representations for these new deformed systems are presented. The generalized Kupershmidt deformation for the discrete integrable systems provides a new way to construct new discrete integrable systems.
description: 16 pages. Accepted by Theoretical and Mathematical Physics
Cryogenic 9Be+ Penning trap for precision measurements with (anti-)protons
Creators: name: Niemann, M.
name: Meiners, T.
name: Mielke, J.
name: Borchert, M.J.
name: Cornejo, J.M.
name: Ulmer, S.
name: Ospelkaus, C.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2019
Subjects: subject: antiproton
subject: CPT invariance
subject: g-factor
subject: laser cooling
subject: Penning trap
subject: proton
subject: trapped ions
subject: Ions
subject: Laser cooling
subject: Protons
subject: Quantum theory
subject: Detection scheme
subject: G factors
subject: High-precision measurement
subject: Precision measurement
subject: Protons and antiprotons
subject: Trapped ions
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Cooling and detection schemes using laser cooling and methods of quantum logic can contribute to high precision CPT symmetry tests in the baryonic sector. This work introduces an experiment to sympathetically cool protons and antiprotons using the Coulomb interaction with a 9Be+ ion trapped in a nearby but separate potential well. We have designed and set up an apparatus to show such coupling between two identical ions for the first time in a Penning trap. In this paper, we present evidence for successful loading and Doppler cooling of clouds and single ions. Our coupling scheme has applications in a range of high-precision measurements in Penning traps and has the potential to substantially improve motional control in these experiments.
On the structure of the directions not determined by a large affine point set
Creators: name: De Beule, Jan
name: Sziklai, Péter
name: Takáts, Marcella
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05B25, 51D20, 51E14, 51E20, 51E21

description: Given a point set $U$ in an $n$-dimensional affine space of size $q^{n-1}-\varepsilon$, we obtain information on the structure of the set of directions that are not determined by $U$, and we describe an application in the theory of partial ovoids of certain partial geometries.
A new method to determine the grain size of planetary regolith
Creators: name: Gundlach, Bastian
name: Blum, Jürgen
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Airless planetary bodies are covered by a dusty layer called regolith. The grain size of the regolith determines the temperature and the mechanical strength of the surface layers. Thus, knowledge of the grain size of planetary regolith helps to prepare future landing and/or sample-return missions. In this work, we present a method to determine the grain size of planetary regolith by using remote measurements of the thermal inertia. We found that small bodies in the Solar System (diameter less than ~100 km) are covered by relatively coarse regolith grains with typical particle sizes in the millimeter to centimeter regime, whereas large objects possess very fine regolith with grain sizes between 10 and 100 micrometer.
description: Accepted by Icarus
EFFECT OF INPUT PARAMETERS ON DYNAMIC CHARACTERISTICS OF CLAYEY SOIL THROUGH DYNATOR – A NON-DESTRUCTIVE TEST
Creators: name: SADIA MOIN
name: Dr. AMANULLAH MARRI
name: Dr. SADAF QASIM
Publisher: name: Zenodo
Year: 2023
Subjects: Clay, Frequency Range, Shear Modulus, Damping Ratio, Maximum Strains, Confining Pressure, and Acquisition Channel.

description: Abstract 
Currently dynamic loading and its effects on foundation is quite a hot topic in the field of geotechnical engineering which occurred due to vibration effect on soil, and it is quite challenging to observe. This study was performed on the Resonant column equipment accompanied by the software Dynator. The usage of software needs a proper understanding and its effects on the testing properties of soil. The previous studies of dynamically loaded soil studied through resonant columns majorly are in the range of 1 to 2 Hz with free vibration and forced vibration, but to start work with the soil sample and to relate the loading properties with the literature is difficult because of the input parameters of dynamic loading. The objective of this study is to provide how much difference occurred in the values of shear modulus (G), damping ratio (D), and peak strain amplitude (γ) on minor changes of input values. The outputs of this research show that shear modulus values increase linearly on change of values of initial frequency and peak strain amplitudes decreases, while there is a minor decrease in the Damping ratio. The acquisition channel gives linear straight values of damping on angular and in the channel of acceleration it provides the wave type variation in values of damping ratio.
Interference in above-threshold-ionization electron distributions from molecules
Creators: name: Henkel, Jost
name: Lein, Manfred
name: Engel, Volker
Publisher: name: College Park, MD : American Physical Society
Year: 2011
Subjects: subject: Above-threshold ionization
subject: Eikonal models
subject: Electron distributions
subject: Electron energy spectrum
subject: Electron-ion interactions
subject: Interference patterns
subject: Molecular centers
subject: Molecular ions
subject: Momentum distributions
subject: Quantum-mechanical study
subject: Three dimensions
subject: Spectroscopy
subject: Ionization
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We present quantum-mechanical studies on above-threshold ionization of molecular ions in two and three dimensions. The momentum distributions show signatures of interfering emissions from the molecular centers. These structures deviate from a simple double-slit model that ignores the electron-ion interaction, but they are reproduced by an eikonal model. Such distortions of the interference pattern are partly responsible for the absence of clear interference patterns in the angle-integrated electron energy spectra. © 2011 American Physical Society.
The structure of invariants in conformal mechanics
Creators: name: Hakobyan, Tigran
name: Karakhanyan, David
name: Lechtenfeld, Olaf
Publisher: name: Amsterdam : Elsevier Science BV
Year: 2014
Subjects: subject: calogero-moser system
subject: n-body problems
subject: integrable systems
subject: lie-algebras
subject: hamiltonian systems
subject: quantum-mechanics
subject: sutherland model
subject: one-dimension
subject: black-holes
subject: superintegrability
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We investigate the integrals of motion of general conformal mechanical systems with and without confining harmonic potential as well as of the related angular subsystems, by employing the sl(2,R) algebra and its representations. In particular, via the tensor product of two representations we construct new integrals of motion from old ones, both in the classical and in the quantum case. Furthermore, the temporally periodic observables (including the integrals) of the angular subsystem are explicitly related to those of the full system in a confining harmonic potential. The techniques are illustrated for the rational Calogero models and their angular subsystems, where they generalize known methods for obtaining conserved charges beyond the Liouville ones.
Corrigendum: Detection of motional ground state population using delayed pulses (2016 New J. Phys. 18 013037)
Creators: name: Gebert, Florian
name: Wan, Yong
name: Wolf, Fabian
name: Heip, Jan C.
name: Schmidt, Piet O.
Publisher: name: Bristol : IOP Publishing Ltd.
Year: 2018
Subjects: subject: Physics
subject: Population
subject: Quantum mechanics
subject: Ground state
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [No abstract available]
Exploring the Interstellar Media of Optically Compact Dwarf Galaxies
Creators: name: Most, Hans P.
name: Cannon, John M.
name: Salzer, John J.
name: Rosenberg, Jessica J.
name: Engstrom, Eric
name: Fliss, Palmer
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present new Very Large Array HI spectral line, archival Sloan Digital Sky Survey, and archival Spitzer Space Telescope imaging of eight star-forming blue compact dwarf galaxies that were selected to be optically compact (optical radii less than 1 kpc). These systems have faint blue absolute magnitudes (M_B >= -17), ongoing star formation (based on emission-line selection by the H alpha or [OIII] lines), and are nearby (mean velocity = 3315 km/s = 45 Mpc). One galaxy in the sample, ADBS 113845+2008, is found to have an HI halo that extends 58 r-band scale lengths from its stellar body. In contrast, the rest of the sample galaxies have HI radii to optical-scale-length ratios ranging from 9.3 to 26. The size of the HI disk in the "giant disk" dwarf galaxy ADBS 113845+2008 appears to be unusual as compared to similarly compact stellar populations.
description: Astronomical Journal, in press
title: Analysing mesoscale structures in economic and financial networks
Creators: name: van Lidth de Jeude, Jeroen Allard
Publisher: name: IMT Alti Studi Lucca
Year: 2019

description: Modelling, characterising and detecting the structure of complex
 networks is of primary importance to understand the
 dynamics of the systems considered. This is especially true
 for economic and financial networks, whose structural organisation
 deeply affects their resilience to shock propagation.
 Many real world networks are characterised by the presence
 of mesoscale structures: while a lot of attention has been focused
 on the community structure, many real-world networks
 are characterised by core-periphery, bow-tie and bipartite structures,
 especially so economic and financial networks. In this
 thesis we present new methods to model and detect these
 mesoscale structures. We apply these methods to characterise
 the structure of real-world economic and financial networks.
 Using maximum entropy networks encoding different levels
 of information, we model the structure of the international
 trade network and of national interbank exposures networks.
 We find that constraining local information is enough to reconstruct
 the mesoscale structure of these networks: hence,
 we introduce a new method to detect statistically significant
 bimodular structures, based on the connectivity within and
 between network modules. We also apply our method to multiplex
 networks. In particular, to unravel different types of
 corporate networks, we construct a new multilayer dataset
 of company interactions: we find that the disaggregate network
 describes a small corporate world, but that these different
 company interactions are characterised by vastly different
 topological properties.
What Makes Me Want You Here? Refugee Integration in a Zambian Settlement Setting
Creators: name: Gronau, Steven
name: Ruesink, Brigitte
Publisher: name: Basel : MDPI AG
Year: 2021
Subjects: subject: integration
subject: inclusion
subject: refugees
subject: host society
subject: opinion
subject: contact
subject: Africa
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft::333 | Boden- und Energiewirtschaft::333,7 | Natürliche Ressourcen, Energie und Umwelt
subject: Dewey Decimal Classification::600 | Technik::690 | Hausbau, Bauhandwerk

description: Many of the world’s refugees remain in Africa, where they stay long-term, mainly in neighboring countries. The present directions point to integration, in which the host society and the political surroundings play a key role. This paper aims to investigate the ways in which public opinion towards and contact with refugees support integration processes. We apply this research to a settlement setting in rural Zambia, a recent dataset of 275 households from 2018, and an econometric analysis. This is the first study dealing with a set of factors that affect the hosts’ opinion towards and contact with refugees in an African settlement context, and with respect to the Comprehensive Refugee Response Framework produced by the United Nations. Our results show, particularly, the religiosity, group membership, life satisfaction, food insecurity, agricultural ownership and natural resource uses of the host society to be the main factors that need policy consideration for the promotion of refugee integration. Stakeholders dealing in host–refugee settings and seeking for durable solutions should roll out community programs to address threat perceptions and interaction improvements.
Leptogenesis in the Universe
Creators: name: Fong, Chee Sheng
name: Nardi, Enrico
name: Riotto, Antonio
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Leptogenesis is a class of scenarios in which the cosmic baryon asymmetry originates from an initial lepton asymmetry generated in the decays of heavy sterile neutrinos in the early Universe. We explain why leptogenesis is an appealing mechanism for baryogenesis. We review its motivations, the basic ingredients, and describe subclasses of effects, like those of lepton flavours, spectator processes, scatterings, finite temperature corrections, the role of the heavier sterile neutrinos and quantum corrections. We then address leptogenesis in supersymmetric scenarios, as well as some other popular variations of the basic leptogenesis framework.
description: 60 pages, 4 figures. Published in Special Issue on Neutrino Physics, Advances in High Energy Physics Hindawi Publishing Corporation 2012