cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Recruitment, Training and Re-Training of Teachers A Requisite for 21st Century Education Development .pdf
Creators: name: Edeh, Stephen  Olenye
Publisher: name: figshare
Year: 2023
Subjects: Education policy
Education policy, sociology and philosophy not elsewhere classified

description: This paper examines recruitment, training and re-training of teachers for 21st century education development. The paper further addressed major issues of concern such as re-training of teachers, concept of enabling environment for21st century education, strategies for provision of enabling environment for 21st century…
title: Neues Glas aus Finnland. Tapio Wirkkala und seine Schüler. Zu einer Ausstellung des Gewerbemuseums der LGA im Germanischen Nationalmuseum Nürnberg vom 19. März 1992 bis 24. Mai 1992
Creators: name: Glaser, Silvia
Publisher: name: University Library Heidelberg
Year: 2015

description: [nicht vorhanden / not available]
Direct limits for scalar field dark matter from a gravitational-wave detector
Creators: name: Vermeulen, Sander M.
name: Relton, Philip
name: Grote, Hartmut
name: Raymond, Vivien
name: Affeldt, Christoph
name: Bergamin, Fabio
name: Bisht, Aparna
name: Brinkmann, Marc
name: Danzmann, Karsten
name: Doravari, Suresh
name: Kringel, Volker
name: Lough, James
name: Lück, Harald
name: Mehmet, Moritz
name: Mukund, Nikhil
name: Nadji, Séverin
name: Schreiber, Emil
name: Sorazu, Borja
name: Strain, Kenneth A.
name: Vahlbruch, Henning
name: Weinert, Michael
name: Willke, Benno
name: Wittel, Holger
Publisher: name: London [u.a.] : Nature Publ. Group
Year: 2021
Subjects: subject: coupling
subject: interferometry
subject: precision
subject: chemical structure
subject: dark matter
subject: frequency
subject: gravity
subject: noise measurement
subject: particle size
subject: quantum chemistry
subject: signal transduction
subject: Dewey Decimal Classification::500 | Naturwissenschaften

description: The nature of dark matter remains unknown to date, although several candidate particles are being considered in a dynamically changing research landscape1. Scalar field dark matter is a prominent option that is being explored with precision instruments, such as atomic clocks and optical cavities2–8. Here we describe a direct search for scalar field dark matter using a gravitational-wave detector, which operates beyond the quantum shot-noise limit. We set new upper limits on the coupling constants of scalar field dark matter as a function of its mass, by excluding the presence of signals that would be produced through the direct coupling of this dark matter to the beam splitter of the GEO600 interferometer. These constraints improve on bounds from previous direct searches by more than six orders of magnitude and are, in some cases, more stringent than limits obtained in tests of the equivalence principle by up to four orders of magnitude. Our work demonstrates that scalar field dark matter can be investigated or constrained with direct searches using gravitational-wave detectors and highlights the potential of quantum-enhanced interferometry for dark matter detection. © 2021, The Author(s).
PrediTALE: A novel model learned from quantitative data allows for new perspectives on TALE targeting
Creators: name: Erkes, Anett
name: Mücke, Stefanie
name: Reschke, Maik
name: Boch, Jens
name: Grau, Jan
Publisher: name: San Francisco, CA : Public Library of Science (PLoS)
Year: 2019
Subjects: subject: Plant-pathogenic
subject: Xanthomonas bacteria
subject: TALEs
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Plant-pathogenic Xanthomonas bacteria secrete transcription activator-like effectors (TALEs) into host cells, where they act as transcriptional activators on plant target genes to support bacterial virulence. TALEs have a unique modular DNA-binding domain composed of tandem repeats. Two amino acids within each tandem repeat, termed repeat-variable diresidues, bind to contiguous nucleotides on the DNA sequence and determine target specificity. In this paper, we propose a novel approach for TALE target prediction to identify potential virulence targets. Our approach accounts for recent findings concerning TALE targeting, including frame-shift binding by repeats of aberrant lengths, and the flexible strand orientation of target boxes relative to the transcription start of the downstream target gene. The computational model can account for dependencies between adjacent RVD positions. Model parameters are learned from the wealth of quantitative data that have been generated over the last years. We benchmark the novel approach, termed PrediTALE, using RNA-seq data after Xanthomonas infection in rice, and find an overall improvement of prediction performance compared with previous approaches. Using PrediTALE, we are able to predict several novel putative virulence targets. However, we also observe that no target genes are predicted by any prediction tool for several TALEs, which we term orphan TALEs for this reason. We postulate that one explanation for orphan TALEs are incomplete gene annotations and, hence, propose to replace promoterome-wide by genome-wide scans for target boxes. We demonstrate that known targets from promoterome-wide scans may be recovered by genome-wide scans, whereas the latter, combined with RNA-seq data, are able to detect putative targets independent of existing gene annotations. © 2019 Erkes et al.
ω/T scaling of the optical conductivity in strongly correlated layered cobalt oxide
Creators: name: Limelette, P.
name: Phuoc, V. Ta
name: Gervais, F.
name: Fresard, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report infrared spectroscopic properties of the strongly correlated layered cobalt oxide [BiBa$_{0.66}$K$_{0.36}$O$_2$]CoO$_2$. These measurements performed on single crystals allow us to determine the optical conductivity as a function of temperature. In addition to a large temperature dependent transfer of spectral weight, an unconventional low energy mode is found. We show that both its frequency and damping scale as the temperature itself. In fact, a basic analysis demonstrates that this mode fully scales onto a function of $ω$/T up to room temperature. This behavior suggests low energy excitations of non-Fermi liquid type originating from quantum criticality.
description: 5 pages, 4 figures
Amino acid production exceeds plant nitrogen demand in Siberian tundra
Creators: name: Wild, Birgit
name: Alves, Ricardo J. Eloy
name: Barta, Jiri
name: Capek, Petr
name: Gentsch, Norman
name: Guggenberger, Georg
name: Hugelius, Gustaf
name: Knoltsch, Anna
name: Kuhry, Peter
name: Lashchinskiy, Nikolay
name: Mikutta, Robert
name: Palmtag, Juri
name: Prommer, Judith
name: Schnecker, Joerg
name: Shibistova, Olga
name: Takriti, Mounir
name: Urich, Tim
name: Richter, Andreas
Publisher: name: Bristol : IOP Publishing Ltd.
Year: 2018
Subjects: subject: permafrost
subject: tundra
subject: protein depolymerization
subject: nitrogen mineralization
subject: nitrogen limitation
subject: plant productivity
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Arctic plant productivity is often limited by low soil N availability. This has been attributed to slow breakdown of N-containing polymers in litter and soil organic matter (SOM) into smaller, available units, and to shallow plant rooting constrained by permafrost and high soil moisture. Using N-15 pool dilution assays, we here quantified gross amino acid and ammonium production rates in 97 active layer samples from four sites across the Siberian Arctic. We found that amino acid production in organic layers alone exceeded literature-based estimates of maximum plant N uptake 17-fold and therefore reject the hypothesis that arctic plant N limitation results from slow SOM breakdown. High microbial N use efficiency in organic layers rather suggests strong competition of microorganisms and plants in the dominant rooting zone. Deeper horizons showed lower amino acid production rates per volume, but also lower microbial N use efficiency. Permafrost thaw together with soil drainage might facilitate deeper plant rooting and uptake of previously inaccessible subsoil N, and thereby promote plant productivity in arctic ecosystems. We conclude that changes in microbial decomposer activity, microbial N utilization and plant root density with soil depth interactively control N availability for plants in the Arctic.
Coherent feedback cooling of a nanomechanical membrane with atomic spins
Creators: name: Schmid, Gian-Luca
name: Ngai, Chun Tat
name: Ernzer, Maryse
name: Aguilera, Manel Bosch
name: Karg, Thomas M.
name: Treutlein, Philipp
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Coherent feedback stabilises a system towards a target state without the need of a measurement, thus avoiding the quantum backaction inherent to measurements. Here, we employ optical coherent feedback to remotely cool a nanomechanical membrane using atomic spins as a controller. Direct manipulation of the atoms allows us to tune from strong-coupling to an overdamped regime. Making use of the full coherent control offered by our system, we perform spin-membrane state swaps combined with stroboscopic spin pumping to cool the membrane in a room-temperature environment to ${T}={216}\,\mathrm{mK}$ ($\bar{n}_{m} = 2.3\times 10^3$ phonons) in ${200}\,\mathrm{μs}$. We furthermore observe and study the effects of delayed feedback on the cooling performance. Starting from a cryogenically pre-cooled membrane, this method would enable cooling of the mechanical oscillator close to its quantum mechanical ground state and the preparation of nonclassical states.
description: 13 pages, 8 figures
Light-controlled perfect absorption of light
Creators: name: Reddy, K. Nireekshan
name: Gupta, S. Dutta
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study coherent perfect absorption (CPA) of light in a Kerr nonlinear metal-dielectric composite medium, illuminated from the opposite ends. Elementary symmetry considerations reveal that equality of the incident light intensities is a prerequisite to ensure CPA in both linear and nonlinear systems for specific system parameters. We also derive the sufficient conditions for having CPA. We further show that while CPA in a linear system is insensitive to the incident power level, that in a nonlinear system can be achieved only for discrete intensities with interesting hysteretic response. Our unified formulation of CPA and waveguiding identifies them as opposite scattering phenomena. We further investigate light-induced CPA in on- and off- resonant systems.
description: 4 pages, 4 figures
Fluids as primary carriers of sulphur and copper in magmatic assimilation
Creators: name: Virtanen, Ville J.
name: Heinonen, Jussi S.
name: Molnár, Ferenc
name: Schmidt, Max W.
name: Marxer, Felix
name: Skyttä, Pietari
name: Kueter, Nico
name: Moslova, Karina
Publisher: name: London : Nature Publishing Group
Year: 2021
Subjects: subject: aureole
subject: black shale
subject: copper
subject: fluid dynamics
subject: magma
subject: magmatism
subject: mobilization
subject: partial melting
subject: Proterozoic
subject: pyrrhotite
subject: sulfur
subject: Duluth Complex
subject: Minnesota
subject: United States
subject: Virginia
subject: Dewey Decimal Classification::500 | Naturwissenschaften

description: Magmas readily react with their wall-rocks forming metamorphic contact aureoles. Sulphur and possibly metal mobilization within these contact aureoles is essential in the formation of economic magmatic sulphide deposits. We performed heating and partial melting experiments on a black shale sample from the Paleoproterozoic Virginia Formation, which is the main source of sulphur for the world-class Cu-Ni sulphide deposits of the 1.1 Ga Duluth Complex, Minnesota. These experiments show that an autochthonous devolatilization fluid effectively mobilizes carbon, sulphur, and copper in the black shale within subsolidus conditions (≤ 700 °C). Further mobilization occurs when the black shale melts and droplets of Cu-rich sulphide melt and pyrrhotite form at ∼1000 °C. The sulphide droplets attach to bubbles of devolatilization fluid, which promotes buoyancy-driven transportation in silicate melt. Our study shows that devolatilization fluids can supply large proportions of sulphur and copper in mafic–ultramafic layered intrusion-hosted Cu-Ni sulphide deposits. © 2021, The Author(s).
On the shape-selected, ligand-free preparation of hybrid perovskite (Ch3nh3pbbr3) microcrystals and their suitability as model-system for single-crystal studies of optoelectronic properties
Creators: name: Bahnmüller, Ulrich Johannes
name: Kuper, Henning
name: Seewald, Tobias
name: Yalҫinkaya, Yenal
name: Becker, Jörg August
name: Schmidt-Mende, Lukas
name: Weber, Stefan A.L.
name: Polarz, Sebastian
Publisher: name: Basel : MDPI AG
Year: 2021
Subjects: subject: Aerosol synthesis
subject: Hybrid perovskites (HYPE)
subject: Methylammonium lead bromide
subject: Optoelectronic properties of MAPbBr3
subject: Shape-related properties
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Hybrid perovskite materials are one of the most promising candidates for optoelectronic applications, e.g., solar cells and LEDs, which can be produced at low cost compared to established materials. Although this field of research has seen a huge upsurge in the past decade, there is a major lack in understanding the underlying processes, such as shape-property relationships and the role of defects. Our aerosol-assisted synthesis pathway offers the possibility to obtain methylammonium lead bromide (MAPbBr3 ) microcrystals from a liquid single source precursor. The differently shaped particles are aligned on several substrates, without using a directing agent or other additives. The obtained particles show good stability under dry conditions. This allows us to characterize these materials and their pure surfaces at the single-crystal level using time-and spatially resolved methods, without any influences of size-dependent effects. By optimizing the precursor for the aerosol process, we were able to eliminate any purification steps and use the materials as processed. In addition, we performed theoretical simulations to deepen the understanding of the underlying processes in the formation of the different crystal facets and their specific properties. The model system presented provides insights into the shape-related properties of MAPbBr3 single crystals and their directed but ligand-free synthesis. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Multiplicity Distributions of Shower Particles and Target Fragments in 84^Kr_36 - Emulsion Interactions at 1 GeV per nucleon
Creators: name: Singh, M K
name: Soma, A K
name: Pathak, Ramji
name: Singh, V
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The article focuses on the multiplicity distributions of shower particles and target fragments for the interaction of 84^Kr_36 possessing kinetic energy of ~1 GeV per nucleon with NIKFI BR-2 Nuclear Emulsion target. The experimental multiplicity distributions of shower particles, grey fragments, black fragments, and heavily ionization fragments are well described by the multi-component Erlang distribution of the multi-source thermal model. We observed a linear correlation in multiplicities for the above mentioned particles or fragments. The further experimental studies showed that with the increase of target fragment multiplicity, a saturation phenomenon was observed in shower particle multiplicity.
description: 17 pages, 2 figures and 1 Table Submitted in Indian J. Phys. (2013)
Impulsphotolytische Untersuchungen zum Mechanismus der photochemischen WOLFF-Umlagerung
Creators: name: Bölsing, Friedrich
name: Spanuth., E.
Publisher: name: Berlin : De Gruyter
Year: 1976
Subjects: subject: 9, 10-Diazophenantlirone
subject: Diphenylene Ketene
subject: Flash Light Photolysis
subject: Kinetic Measurements
subject: WOLFF Rearrangement
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: 9,10-Diazophenanthrone undergoes WOLFF rearrangement in alcoholic solvents and yields esters of 9-fluorene carboxylic acid. By flash light photolysis four intermediates could be detected. Kinetic measurements showed that the ketene formed by photolysis reacts with the solvent to give a cyclopentadienylic carbanion, which is protonated. A carbene or an oxirene intermediate could not be found.
Propolis as a Therapeutic Alternative Against Oral Candidiasis: A Systematic Review
Creators: name: Brito, Julio Cesar Moreira
name: Paiva, Vanessa Silva
name: Martins, Jeferson Rosa
name: de Oliveira Scoaris, Denise
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Space Science
subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Propolis as a Therapeutic Alternative Against Oral Candidiasis: A Systematic Review
title: Developmental Trajectories of Aggression from Toddlerhood to Early Adolescence in Boys and Girls: Exploring Early Predictors and Later Outcomes
Creators: name: Park, SuJung
Publisher: name: Utah State University
Year: 2019

description: Early behavior problems, such as childhood aggression, emerge in the second year of life and decrease prior to school entry for typically developing children. However, some children show frequent and persistent aggression and may be at risk for subsequent difficulties that lead to poor school and life outcomes. The current study aimed to identify aggression patterns in children from toddlerhood to early adolescence for boys and girls together and separately. This study also explored early influences on aggressive behaviors at age two, such as mothers’ parenting behaviors, cumulative family risk, and early child characteristics. A range of difficulties in early adolescence were investigated, including poor social skills, low academic success, internalizing problems (e.g., depression and anxiety), and delinquent behaviors. Data from a previous study of 3,000 families and children, the Early Head Start Research and Evaluation longitudinal study, which followed families and children from infancy to early adolescence were examined. Four aggression patterns were found, characterized by changes over time in the amount of aggressive behaviors exhibited, applicable to both boys and girls: low-stable, moderate-decreasing, moderate-increasing, and high-stable. Early parenting and development during toddlerhood discriminated these distinctive aggression patterns. Compared with children in the low-stable group, boys in the moderate-decreasing and high-stable groups, and girls in the high-stable group were less likely to have mothers using positive parenting behaviors. Boys in the moderate-decreasing group and girls in the high-stable group were more likely to show delayed language development. Boys in the moderate-decreasing and high-stable groups were more likely to indicate poor emotional regulation. Moreover, compared with children in the low-stable group, those in the moderate-decreasing, moderate-increasing, or high-stable groups tended to show difficulties in early adolescence, such as lack of social skills, lower academic success, more internalizing problems, and delinquent behaviors. Altogether, young children exhibiting high levels of aggression over time were at the highest risk for later social, behavioral, and academic problems when, at age two, they had mothers with less positive parenting behaviors or when they showed poor language development or poor emotional regulation.
Evolutionary Model of a Anonymous Consumer Durable Market
Creators: name: Kaldasch, Joachim
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Finance (q-fin.GN)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Other Statistics (stat.OT)
subject: FOS: Economics and business
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: An analytic model is presented that considers the evolution of a market of durable goods. The model suggests that after introduction goods spread always according to a Bass diffusion. However, this phase will be followed by a diffusion process for durable consumer goods governed by a variation-selection-reproduction mechanism and the growth dynamics can be described by a replicator equation. Describing the aggregate sales as the sum of first, multiple and replacement purchase the product life cycle can be derived. Replacement purchase causes periodic variations of the sales determined by the finite lifetime of the good (Juglar cycles). The model suggests that both, Bass- and Gompertz diffusion may contribute to the product life cycle of a consumer durable. The theory contains the standard equilibrium view of a market as a special case. It depends on the time scale, whether an equilibrium or evolutionary description is more appropriate. The evolutionary framework is used to derive also the size, growth rate and price distribution of manufacturing business units. It predicts that the size distribution of the business units (products) is lognormal, while the growth rates exhibit a Laplace distribution. Large price deviations from the mean price are also governed by a Laplace distribution (fat tails). These results are in agreement with empirical findings. The explicit comparison of the time evolution of consumer durables with empirical investigations confirms the close relationship between price decline and Gompertz diffusion, while the product life cycle can be described qualitatively for a long time period.
description: preprint
Documenting Data Integration Using Knowledge Graphs
Creators: name: Azizi, Sepideh
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität
Year: 2023
Subjects: subject: Data integration system
subject: Knowledge Graph
subject: Mapping rules
subject: Ontology
subject: Data source
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: With the increasing volume of data on the Web and the proliferation of published knowledge graphs, there is a growing need for improved data management and information extraction. However, heterogeneity issues across the data sources, i.e., various formats and systems, negatively impact efficient access, manage, reuse, and analyze the data. A data integration system (DIS) provides uniform access to heterogeneous data sources and their relationships; it offers a unified and comprehensive view of the data. DISs resort to mapping rules, expressed in declarative languages like RML, to align data from various sources to classes and properties defined in an ontology. This work defines a knowledge graph where data integration systems are represented as factual statements. The aim of this work is to provide the basis for integrated analysis of data collected from heterogeneous data silos. The proposed knowledge graph is also specified as a data integration system, that integrates all data integration systems. The proposed solution includes a unified schema, which defines and explains the relationships between all elements in the data integration system DIS=⟨G, S, M, F⟩. The results suggest that factual statements from the proposed knowledge graph, improve the understanding of the features that characterize knowledge graphs declaratively defined like data integration systems.
Savage Landor : Prisonnier Des Thibétains
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2020
Subjects: Tibetans
Tailors

description: Advertisment for La Compagnie Anglaise's tailors, featuring Savage Landor (b. 1865) and his travels in Tibet in its series 'Les Explorateurs Célébres.'
Quantitative Study of Geometrical Scaling in Charm Production at HERA
Creators: name: Stebel, Tomasz
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We apply the method of ratios to search for geometrical scaling in the charm production in deep inelastic scattering. To this end we use recent combined data from H1 and ZEUS experiments. Two forms of geometrical scaling are tested: originally proposed scaling which results from Golec-Biernat-Wusthoff model and scaling motivated by a dipole representation which takes into account charm mass. It turns out that in both cases some residual scaling is present and charm mass inclusion improves scaling quality.
Laser-Desorbed Large Molecules in a Supersonic Jet
Creators: name: Weyssenhoff, H.V.
name: Selzle, H.L.
name: Schlag, E.W.
Publisher: name: Berlin : De Gruyter
Year: 1985
Subjects: subject: Laser-Desorbed Large Molecules
subject: Supersonic Jet
subject: UV laser
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: A new technique of desorption of non volatile thermally unstable molecules into a supersonic jet has been developped. With this method isolated large molecules are now available for mass spectrometry as well as for spectroscopic studies at temperatures of a few Kelvin, thus avoiding spectral congestion. It could be demonstrated that molecules like tryptophane and retinal could be desorbed with an IR laser pulse without decomposition and be ionized with a second UV laser to form bare molecule ions without fragmentation.
title: Georg Baselitz - Die Druckgraphik. »Kein Oben, kein Unten, kein Rechts, kein Links«. Eine Ausstellung im Kunsthaus vom 01. - 23. 12. 1993
Creators: name: Weigle, Petra
Publisher: name: University Library Heidelberg
Year: 2016

description: [nicht vorhanden / not available]
Spin-phonon induced magnetic order in Kagome ice
Creators: name: Albarracín, F. A. Gómez
name: Cabra, D. C.
name: Rosales, H. D.
name: Rossini, G. L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the effects of lattice deformations on the Kagome spin ice, with Ising spins coupled by nearest neighbor exchange and long range dipolar interactions, in the presence of in-plane magnetic fields. We describe the lattice energy according to the Einstein model, where each site distortion is treated independently. Upon integration of lattice degrees of freedom, effective quadratic spin interactions arise. Classical MonteCarlo simulations are performed on the resulting model, retaining up to third neighbor interactions, under different directions of the magnetic field. We find that, as the effect of the deformation is increased, a rich plateau structure appears in the magnetization curves.
description: 7 pages, 8 figures
Acht Leitsätze zur Zukunft der industriellen Metall- und Elektroberufe aus der EVA M+E-Studie
Creators: name: Becker, Matthias
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2023
Subjects: subject: Evaluation
subject: Metallberufe
subject: Elektroberufe
subject: Industriemechatroniker
subject: Leitsätze
subject: Kernberuf
subject: Betriebliche Ausbildung
subject: Metallindustrie
subject: Elektrotechnische Industrie
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: Das Arbeitspapier enthält 8 Leitsätze zur zukünftigen Ausrichtung der Berufsausbildung für die Metall- und Elektroindustrie. Empfohlen wird eine industriemechatronische Ausbildung nach dem Kernberufekonzept.
Non-abelian Einstein-Born-Infeld AdS black brane and color DC conductivity
Creators: name: Sadeghi, Mehdi
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we consider Einstein-Hilbert gravity in the presence of cosmological constant and non-abelian nonlinear electromagnetic field of Born-Infeld type which is minimally coupled to gravity. First, black brane solution of this model is introduced and then color non-abelian DC conductivity is calculated for this solution by using AdS/CFT duality.
description: 9 Pages, no figure, references added, minor modifications, accepted by the Indian Journal of Physics
A new clinopyroxene thermobarometer for mafic to intermediate magmatic systems
Creators: name: Wang, Xudong
name: Hou, Tong
name: Wang, Meng
name: Zhang, Chao
name: Zhang, Zhaochong
name: Pan, Ronghao
name: Marxer, Felix
name: Zhang, Hongluo
Publisher: name: Göttingen : Copernicus Publications
Year: 2021
Subjects: subject: Calibration
subject: Phase equilibria
subject: Silicates
subject: Statistical tests
subject: Calibration and validations
subject: Clinopyroxenes
subject: Crystallization pressure
subject: Crystallization temperature
subject: Magma system
subject: Magmatic systems
subject: Performance
subject: Pressure and temperature
subject: Silicate melts
subject: Thermobarometry
subject: Basalt
subject: barometry
subject: clinopyroxene
subject: empirical analysis
subject: mafic rock
subject: magmatism
subject: thermometry
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Clinopyroxene-only thermobarometry is one of the most practical tools to reconstruct crystallization pressures and temperatures of clinopyroxenes. Because it does not require any information of coexisting silicate melt or other co-crystallized mineral phases, it has been widely used to elucidate the physiochemical conditions of crystallizing magmas. However, previously calibrated clinopyroxene-only thermobarometers display low accuracy when being applied to mafic and intermediate magmatic systems. Hence, in this study, we present new empirical nonlinear barometric and thermometric models, which were formulated to improve the performance of clinopyroxene-only thermobarometry. Particularly, a total of 559 experimental runs conducted in the pressure range of 1gbar to 12gkbar have been used for calibration and validation of the new barometric and thermometric formulation. The superiority of our new models with respect to previous ones was confirmed by comparing their performance on 100 replications of calibration and validation, and the standard error of estimate (SEE) of the new barometer and thermometer are 1.66gkbar and 36.6gg C, respectively. Although our new barometer and thermometer fail to reproduce the entire test dataset, which has not been used for calibration and validation, they still perform well on clinopyroxenes crystallized from subalkaline basic to intermediate magmas (i.e., basaltic, basalt-andesitic, dacitic magma systems). Thus, their applicability should be limited to basaltic, basalt-andesitic and dacitic magma systems. In a last step, we applied our new thermobarometer to several tholeiitic Icelandic eruptions and established magma storage conditions exhibiting a general consistency with phase equilibria experiments. Therefore, we propose that our new thermobarometer represents a powerful tool to reveal the crystallization conditions of clinopyroxene in mafic to intermediate magmas. © Copyright:
Ruthenium Complex Bearing a Hydroxy Group Functionalised N-Heterocyclic Carbene Ligand – A Universal Platform for Synthesis of Tagged and Immobilised Catalysts for Olefin Metathesis
Creators: name: Monsigny, Louis
name: Czarnocki, Stefan
name: Sienkiewicz, Michał
name: Kopcha, William
name: Frankfurter, René
name: Vogt, Carla
name: Solodenko, Wladimir
name: Kajetanowicz, Anna
name: Kirschning, Andreas
name: Grela, Karol
Publisher: name: Weinheim : Wiley-VCH
Year: 2021
Subjects: subject: Flow chemistry
subject: Immobilisation
subject: N-Heterocyclic carbenes
subject: Olefin metathesis
subject: Ruthenium
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Six olefin metathesis catalysts, based on a common ruthenium precursor featuring a hydroxy-substituted N-heterocyclic carbene ligand, were successfully prepared and fully characterised. As proof-of-concept, two of them ([Ru]isonico and [Ru]dmab) were directly immobilised on a solid support. These non-covalently heterogenised catalysts are efficient in different metathesis reactions and sufficiently stable to be used for repeated runs under batch and continuous flow conditions. In nonpolar media such as n-hexane, the catalytic character of the metathesis reactions is truly heterogeneous, and the contamination of the products with ruthenium is very low. © 2021 The Authors. European Journal of Organic Chemistry published by Wiley-VCH GmbH
Linking ecosystem condition and ecosystem services: A methodological approach applied to European agroecosystems
Creators: name: Rendon, Paula
name: Steinhoff-Knopp, Bastian
name: Burkhard, Benjamin
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2022
Subjects: subject: Agricultural soils
subject: Condition indicators
subject: Ecosystem status
subject: Erosion control
subject: European Biodiversity Strategy
subject: MAES
subject: Pressures
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft::333 | Boden- und Energiewirtschaft::333,7 | Natürliche Ressourcen, Energie und Umwelt

description: Agriculture has been identified as one of the main drivers of environmental degradation in the European Union (EU). It can have negative impacts on air, water, soil and biodiversity. The condition of agroecosystems is affected by soil degradation, especially by soil erosion, which reduces agroecosystems' capacity to provide essential ecosystem services. Therefore, it is necessary to explore synergies and trade-offs between pressures, ecosystem condition and services to create relevant information for policy and decision-makers to implement sustainable response actions. As part of the EU environmental policy, the Mapping and Assessment of Ecosystems and their Services (MAES) Working Group developed appropriate concepts to assess and link ecosystem condition and services. This study aims to test the indicators proposed by MAES to assess ecosystem condition and link it with the ecosystem services provision. For this, we applied a suggested operational framework developed in the context of the Biodiversity Strategies 2020 and 2030 for the integrated assessment of agroecosystems and regulating ecosystem service control of erosion rates supply at European scale. We quantified and mapped indicators for ecosystem condition, environmental and anthropogenic pressures and soil erosion control. We explored the relationships between the respective indicators and the capacity of agroecosystems to control soil erosion across the different Environmental Zones (EZ). Our results indicate that, in general, European agroecosystems have a high capacity to control soil erosion with some variations within the EZ. Supply capacity is positively, negatively and not correlated with the various pressure and condition indicators. Management and climate indicators play a significant role in the assessment of this service. These results highlight that conservational management practices are fundamental to reduce soil loss and improve agroecosystem condition. However, the design and implementation of such management practices must consider regional and local landscape characteristics, agricultural practices and the needs and opportunities of stakeholders. © 2021 The Author(s)
Laser-induzierte schnelle thermische Desorption von Festkörper-Oberflächen
Creators: name: Ertl, G.
name: Neumann, M.
Publisher: name: Berlin : De Gruyter
Year: 1972
Subjects: subject: Rapid Laser Beam
subject: Thermal Desorption
subject: Solid Surfaces
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Absorption of a pulse of laser light in the surface region of a solid causes a fast temperature increase, followed, after the end of the laser pulse, by a rapid decrease to the base temperature. Experiments with a Nd laser (power 105–106 W/cm2, half width of the pulse 150 µsec) showed that desorption of CO from a Pd surface reaches its maximum rate within the time constant of the system (∼ 0.5 msec). This effect can be used for example to investigate the kinetics of adsorption/desorption processes by means of relaxation methods. © 1972, Walter de Gruyter. All rights reserved.
title: Kunst des Sammelns. Das Praunsche Kabinett. Meisterwerke von Dürer bis Carracci. Eine Ausstellung im Germanischen Nationalmuseum Nürnberg vom 3. März bis 15. Mai 1994
Creators: name: Schoch, Rainer
Publisher: name: University Library Heidelberg
Year: 2016

description: [nicht vorhanden / not available]
The sine-Gordon model in the presence of defects
Creators: name: Avan, Jean
name: Doikou, Anastasia
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The sine-Gordon model in the presence of dynamical integrable defects is investigated. This is an application of the algebraic formulation introduced for integrable defects in earlier works. The quantities in involution as well as the associated Lax pairs are explicitly extracted. Integrability i also shown using certain sewing constraints, which emerge as suitable continuity conditions.
description: 15 pages, Latex. This is based on a talk presented by A.D. in "Integrable systems and quantum symmetries", Prague, June 2012
From eye to arrow: Attention capture by direct gaze requires more than just the eyes
Creators: name: Breil, Christina
name: Huestegge, Lynn
name: Böckler, Anne
Publisher: name: New York, NY : Springer
Year: 2022
Subjects: subject: Attention capture
subject: Direct gaze
subject: Face perception
subject: Social cognition
subject: Social cues
subject: Social interaction
subject: association
subject: eye
subject: eye fixation
subject: eye movement
subject: head
subject: human
subject: Cues
subject: Eye Movements
subject: Fixation, Ocular
subject: Humans
subject: Dewey Decimal Classification::100 | Philosophie::150 | Psychologie

description: Abstract: Human attention is strongly attracted by direct gaze and sudden onset motion. The sudden direct-gaze effect refers to the processing advantage for targets appearing on peripheral faces that suddenly establish eye contact. Here, we investigate the necessity of social information for attention capture by (sudden onset) ostensive cues. Six experiments involving 204 participants applied (1) naturalistic faces, (2) arrows, (3) schematic eyes, (4) naturalistic eyes, or schematic facial configurations (5) without or (6) with head turn to an attention-capture paradigm. Trials started with two stimuli oriented towards the observer and two stimuli pointing into the periphery. Simultaneous to target presentation, one direct stimulus changed to averted and one averted stimulus changed to direct, yielding a 2 × 2 factorial design with direction and motion cues being absent or present. We replicated the (sudden) direct-gaze effect for photographic faces, but found no corresponding effects in Experiments 2–6. Hence, a holistic and socially meaningful facial context seems vital for attention capture by direct gaze. Statement of significance: The present study highlights the significance of context information for social attention. Our findings demonstrate that the direct-gaze effect, that is, the prioritization of direct gaze over averted gaze, critically relies on the presentation of a meaningful holistic and naturalistic facial context. This pattern of results is evidence in favor of early effects of surrounding social information on attention capture by direct gaze. © 2021, The Author(s).
Two letters from Tsering Pemba to Tharchin, 1951-1952
Creators: name: Pemba, Tsering
Publisher: name: Columbia University
Year: 2020
Subjects: Tibetans

description: Letter on March 21, 1951 states "we are carrying on as usual." Letter on August 7, 1952 states "I hope you will realise that nowadays there are certain objections in distributing foreign newspapers in Lhasa…"
Indirect transmission and the effect of seasonal pathogen inactivation on infectious disease periodicity
Creators: name: Robinson, Marguerite
name: Drossinos, Yannis
name: Stilianakis, Nikolaos I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: The annual occurrence of many infectious diseases remains a constant burden to public health systems. The seasonal patterns in respiratory disease incidence observed in temperate regions have been attributed to the impact of environmental conditions on pathogen survival. A model describing the transmission of an infectious disease by means of a pathogenic state capable of surviving in an environmental reservoir outside of its host organism is presented in this paper. The ratio of pathogen lifespan to the duration of the infectious disease state is found to be a critical parameter in determining disease dynamics. The introduction of a seasonally forced pathogen inactivation rate identifies a time delay between peak pathogen survival and peak disease incidence. The delay is dependent on specific disease parameters and, for influenza, decreases with increasing reproduction number. The observed seasonal oscillations are found to have a period identical to that of the seasonally forced inactivation rate and which is independent of the duration of infection acquired immunity
description: 36 pages, 10 figures, to appear in Epidemics
Chu spre gnas chung chos rgyal chen po'i bka' lung dgongs don Bod ljongs ser skya spyi yis spyi zhus zhabs brtan sgrub bya'i zhu lan sgrags ma don snying tshil rul gso ba'i sman mchog sgrib med gcer mthong lha yi bdud rtsi gsar pa zhes bya ba bzhugs so
Creators: name: Thub-Bstan-Rgya-Mtsho, Dalai Lama XIII, 1876-1933
Publisher: name: Columbia University
Year: 2020
Subjects: Politics and government

description: Woodblock print of what is also known as the "political testament" of the Thirteenth Dalai Lama
The number of parties and decision-making in legislatures
Creators: name: Bannikova, Marina
name: Jelnov, Artyom
name: Jelnov, Pavel
Publisher: name: Basel : MDPI AG
Year: 2021
Subjects: subject: Legislature
subject: Lobbyist
subject: Parties
subject: Voting
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: This paper proposes a model of a legislature, formed by several parties, which has to vote for or against a certain bill in the presence of a lobbyist interested in a certain vote outcome. We show that the ease with which the lobbyist can manipulate a legislature decision increases with the number of elected parties, and, consequently, decreases with an electoral threshold. On the other hand, a lower electoral threshold increases the representativeness of a legislature. We combine these two effects in a notion of fairness. We show the existence of an electoral threshold that optimizes the fairness of a political system, which is close to 1–5%. Namely, the optimal threshold (in our sense) is close to thresholds that exist in most parliamentary democracies. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
MPEC 2023-M52 : 2023 MR
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 MR

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Patient Benefit of Clinical Research in Diversely Advanced African Developing Countries
Creators: name: Strüver, Vanessa
name: Ali, Sheraz
name: Fneish, Firas
name: Fortwengel, Gerhard
Publisher: name: Amsterdam [u.a.] : Elsevier Science
Year: 2022
Subjects: subject: clinical research
subject: clinical trials
subject: developing countries
subject: medicine registrations
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Background: The globalization of clinical research should also benefit the population in developing markets. In this context, the approval of tested medicines and the associated expansion of medical care beyond clinical studies would be desirable as a possible long-term benefit. Objectives: This study was designed to compare the development of the number of clinical trials with the number of marketing authorizations of medicines on the African continent. To contrast these 2 parameters, the data were analyzed using the model of an ecological study. Methods: To reflect the broad spectrum of African developing countries with diverse levels of development, the data collection was based on 2 geographically selected sample countries each from Central, North, East, West, and Southern Africa. Based on the ClinicalTrials.gov registry, the first step was to collect trends data on the development of the clinical trials in the 10 selected countries of the country list of the African Region published by the World Health Organization for the period 2015 to 2018. Subsequently, data on the current number of marketing authorizations of medicines in the selected sample countries were identified using the online registries of the national authorities. The data were utilized in comparative analyses. Results: Eight out of 10 model countries showed an increase in the number of clinical trials, with the exceptions of Cameroon and Libya, which showed an overall decline in research activity over the entire time. In direct comparison with drug registrations, the numbers indicate a similar development. The only exception here is Nigeria, a country with a solid performance in clinical research and yet a decrease in medicine registrations since 2015. Conclusions: The expected increase in the development of clinical research as result of the globalization trend can basically be observed in most of the model countries. However, this increase does not guarantee an improvement in the number of medicine registrations. Although this is evident in some of the selected model countries, it cannot be projected to the entire African region. This may be linked to the diverse development of the individual countries due to the different political situations and the varying degrees of clinical research infrastructure. (Curr Ther Res Clin Exp. 2022; 82:XXX–XXX) © 2021 The Author(s)