cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Search as Learning Spaceship: Toward a Comprehensive Model of Psychological and Technological Facets of Search as Learning
Creators: name: Von Hoyer, Johannes
name: Hoppe, Anett
name: Kammerer, Yvonne
name: Otto, Christian
name: Pardi, Georg
name: Rokicki, Markus
name: Yu, Ran
name: Dietze, Stefan
name: Ewerth, Ralph
name: Holtz, Peter
Publisher: name: Lausanne : Frontiers Research Foundation
Year: 2022
Subjects: subject: human–computer interaction
subject: knowledge gain
subject: ranking algorithms
subject: search as learning
subject: search engine interface
subject: web search
subject: Dewey Decimal Classification::100 | Philosophie::150 | Psychologie

description: Using a Web search engine is one of today’s most frequent activities. Exploratory search activities which are carried out in order to gain knowledge are conceptualized and denoted as Search as Learning (SAL). In this paper, we introduce a novel framework model which incorporates the perspective of both psychology and computer science to describe the search as learning process by reviewing recent literature. The main entities of the model are the learner who is surrounded by a specific learning context, the interface that mediates between the learner and the information environment, the information retrieval (IR) backend which manages the processes between the interface and the set of Web resources, that is, the collective Web knowledge represented in resources of different modalities. At first, we provide an overview of the current state of the art with regard to the five main entities of our model, before we outline areas of future research to improve our understanding of search as learning processes. Copyright © 2022 von Hoyer, Hoppe, Kammerer, Otto, Pardi, Rokicki, Yu, Dietze, Ewerth and Holtz.
Temporal and Spatial Analyses of Spectral Indices of Nonthermal Emissions Derived from Hard X-Rays and Microwaves
Creators: name: Asai, Ayumi
name: Kiyohara, Junko
name: Takasaki, Hiroyuki
name: Narukage, Noriyuki
name: Yokoyama, Takaaki
name: Masuda, Satoshi
name: Shimojo, Masumi
name: Nakajima, Hiroshi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We studied electron spectral indices of nonthermal emissions seen in hard X-rays (HXRs) and in microwaves. We analyzed 12 flares observed by the Hard X-ray Telescope aboard {\it Yohkoh}, Nobeyama Radio Polarimeters (NoRP), and the Nobeyama Radioheliograph (NoRH), and compared the spectral indices derived from total fluxes of hard X-rays and microwaves. Except for four events, which have very soft HXR spectra suffering from the thermal component, these flares show a gap $Δδ$ between the electron spectral indices derived from hard X-rays $δ_{X}$ and those from microwaves $δ_μ$ ($Δδ= δ_{X} - δ_μ$) of about 1.6. Furthermore, from the start to the peak times of the HXR bursts, the time profiles of the HXR spectral index $δ_{X}$ evolve synchronously with those of the microwave spectral index $δ_μ$, keeping the constant gap. We also examined the spatially resolved distribution of the microwave spectral index by using NoRH data. The microwave spectral index $δ_μ$ tends to be larger, which means a softer spectrum, at HXR footpoint sources with stronger magnetic field than that at the loop tops. These results suggest that the electron spectra are bent at around several hundreds of keV, and become harder at the higher energy range that contributes the microwave gyrosynchrotron emission.
description: 24 pages, 6 figures, accepted for publication in ApJ
The Portrayal of Anger and Anger Management in Children's Picture Books
Creators: name: Hernandez, Ilcia
Publisher: name: Digital Repository at the University of Maryland
Year: 2024
Subjects: subject: Educational psychology
subject: Early childhood education
subject: School counseling

description: Through a comprehensive analysis of a sample of 80 children’s picture books, this study highlights the importance of embedding language to describe anger experiences and elements of social information processing (SIP) within stories to enhance young children’s understanding of anger arousal within themselves and others, as well as of anger management strategies. This study identified anger-eliciting situations, physiological and behavioral reactions, coping strategies proposed by helpers or the main character, along with other themes related to emotion socialization within the books. The current study identifies gaps in the portrayal of SIP mechanisms within stories, which underscores a need to emphasize the role of emotion dysregulation and of SIP biases during interpersonal conflicts as it is critical to foster regulation, reappraisal, and problem-solving skills among readers. The depiction of anger arousal and its escalation, predominantly through illustrations, is explored, along with implications for emotion understanding and cultural considerations of emotion expression. Picture book stories convey beliefs and values about anger by normalizing the emotion while promoting constructive regulation and expression through addressing the arousal in the body, delaying reactive responses, and using cognitive coping strategies. Overall, the current study has implications for caregivers and clinicians, in that becoming aware of how anger experiences are portrayed in picture books can aid in book selection based on a match with an individual child’s experiences and temperament to maximize its use as a tool for social-emotional learning and anger management in young children.
Vergleich zwischen drei Störfestigkeitsmessmethoden an KFZ-Unterbaukomponenten
Creators: name: Al-Hamid, Moawia
name: Aggarwal, Nitin
name: Vick, Ralf
Publisher: name: Aachen : Apprimus
Year: 2020
Subjects: subject: Kfz
subject: Störfestigkeit
subject: Unterbaukomponenten
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: Die Störfestigkeit von Kfz-Unterbaukomponenten kann anhand von verschiedenen Messverfahren nach ISO 11452 geprüft werden. Häufig wird die Fernfeldeinkopplung durch Antennen nach [1] über den Kabelbaum der Unterbaukomponente in einer Absorberhalle geprüft. Problematisch sind bei diesem Messverfahren die hohen Kosten für die Anschaffung sowie der Platzbedarf einer Absorberhalle. Alternativ wird für die Prüfung der Störfestigkeit von Kfz-Komponenten gemäß [2] das standardisierte Bulk- Current-Injection (BCI) Messverfahren verwendet, bei der Prüfströme in den Kabelbaum eingekoppelt werden. Das BCI-Messverfahren ist gegenüber der Feldeinkopplung in der Absorberhalle aufgrund der geringeren Beschaffungskosten sowie der Messzeit vorteilhaft. Mit Hilfe dieses Messverfahrens kann der Einfluss von Störungen sowie die Störfestigkeit von Geräten oder Systemen während der Entwicklung schnell und kostengünstig untersucht und bewertet werden [4]. In [5] wurde die Verbesserung der Korrelation zwischen dem BCI- und dem Antennenprüfverfahren für Kfz-Komponenten durch Anpassung von Verstärkerleistung und Position der BCI-Zange diskutiert. In [6] wurden die BCI- und Fernfeldeinkopplungsverfahren verglichen. Das BCI-Messverfahren an Kfz-Komponenten wurde auch mit der kapazitiven Spannungseinkopplung verglichen [7]. Ein zweites Alternativmessverfahren zur Prüfung der Störfestigkeit von Kfz-Komponenten ist der Streifenleiter nach ISO 11452-5 [3]. In [8] wurden die elektrischen Eigenschaften der Streifenleitung und die damit verbundenen Anwendungsgrenzen ermittelt. Die Gleich- und Gegentaktanregung von Kabeln wurde mit der Stripline-Methode und im Absorberraum untersucht und verglichen [9]. Durch die breitbandigen Frequenzbereiche sowie die komplexe Geometrie der Kfz-Komponenten und der zugehörigen Kabelbäume kann die Zuverlässigkeit und Reproduzierbarkeit dieser Prüfverfahren nicht immer sichergestellt werden. In diesem Beitrag werden die Herausforderungen an die Komplexität und den Aufwand der Kfz-Komponentenmessverfahren betrachtet. Außerdem wird die benötigte Vorwärtsleistung bei den Störfestigkeitstests diskutiert. Folgende Messverfahren wurden betrachtet: Feldeinkopplung in der Absorberhalle der Otto-von-Guericke-Universität Magdeburg, BCI-Messverfahren und Streifenleiter.
The Effect of an Inert Solid Reservoir on Molecular Abundances in Dense Interstellar Clouds
Creators: name: Kalvans, Juris
name: Shmeld, Ivar
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences
subject: I.6.5; J.2
subject: 85-04

description: The question, what is the role of freeze-out of chemical species in determining the molecular abundances in the interstellar gas is a matter of debate. We investigate a theoretical case of a dense interstellar molecular cloud core by time-dependent modelling of chemical kinetics, where grain surface reactions deliberately are not included. That means, the gas-phase and solid-phase abundances are influenced by gas reactions, accretion on grains, and desorption, only. We compare the results to a reference model, where no accretion occurs and only gas-phase reactions are included. We can trace that the purely physical processes of molecule accretion and desorption have major chemical consequences on the gas-phase chemistry. The main effect of introduction of the gas-grain interaction is long-term molecule abundance changes that come nowhere near an equilibrium in during the typical lifetime of a prestellar core.
description: 8 pages, 6 figures, 1 table. Material initially presented in conference BAASP 2012 at Ventspils University College, May 2012
Untersuchungen zu simulationsgeeigneten Normen für das Fahrverhalten schwerer Nutzfahrzeuge
Creators: name: Faber, Andreas
Publisher: name: Hannover : Universität
Year: 2001
Subjects: subject: Commercial vehicle
subject: driving behaviour
subject: simulation and standardisation
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
Einfluss eines durch Windenergieanlagen amplitudenmodulierten Übertragungskanals auf die Amplitudenmodulation des VOR
Creators: name: Zimmer, Georg
name: Geise, Robert
name: Neubauer, Björn
Publisher: name: Frankfurt/Main : mesago
Year: 2018
Subjects: subject: Amplitudenmodulation
subject: Anstellwinkel
subject: Drehzahl
subject: Funkbake
subject: Messanordnung
subject: Rotor (Drehflügel)
subject: Topologie
subject: Übertragungskanal
subject: Windkraftwerk
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: Gegenstand ist die Bestimmung des Einflusses von Windenergieanlagen (WEA) auf das Drehfunkfeuer (VOR), wenn sich die WEA innerhalb eines Radius von 15 km um das VOR befinden. In diesem Beitrag wird gezeigt, dass die 30-Hz-AM des VOR insbesondere durch 30 Hz-Komponenten der Stör-AM beeinflusst werden kann. D. h. grundsätzlich muss ein dynamischer Übertragungskanal charakterisiert werden. Zusätzlich zum dynamischen Verhalten der WEA werden erstmalig auch weitere wichtige Parameter berücksichtigt. Diese sind: Drehzahl der WEA, Flügelbreite, Ausrichtung des Rotors, Flügelprofil, Einfall-/Ausfallwinkel des Signals, Anstellwinkel der Flügel (pitch), Höhe des VOR über dem Boden, WEA und Geländetopologie. Der Messaufbau wird beschrieben, die Ergebnisse werden tabellarisch und grafisch dargestellt. Gemäß den durchgeführten Untersuchungen wird keine signifikante Beeinflussung bezüglich der Amplitudenmodulation des VOR im durch Windenergieanlagen AM-modulierten Übertragungskanal erwartet. Störungen sind im Rahmen dieser Stichprobe nur zu erwarten, wenn mindestens eine der folgenden Bedingungen erfüllt ist: Drehzahl unrealistisch hoch, also mehr als 30 min-1, Abstand der WEA zum VOR wesentlich kleiner als 3 km, Flügel der WEA unrealistisch breit und zudem planar sind.
title: Design estimation of the level and character of diesel 4chn 10.5/12 mechanical losses when changing the indicators of lubricating material, design and operating mode
Creators: name: Putintsev, S.V.
name: Studzitsky, P.V.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The article considers the substantiated applications of the previously derived universal empirical dependence for calculating the average friction pressure, which allows to take into account the effect of an expanded number of independent variables on this parameter. The obtained relationships between the average friction pressure of a diesel engine 4CHN 10.5/12 (D-145TV, VMTZ) and the main indicators of the lubricant, design and operation mode are presented and analyzed. Special attention is paid to the nature of changes in mechanical losses under conditions of elevated lubricant temperatures and the use of low-viscosity motor oils.
Navigating a Relational Bind: Black and Latino Emergent Adult Men’s Negotiation of their Relational Needs in a Masculine Context
Creators: name: Hedelund, Adam Jens
Publisher: name: Digital Repository at the University of Maryland
Year: 2024
Subjects: subject: Individual & family studies
subject: Black Men
subject: Emergent adulthood
subject: Hegemonic Masculinity
subject: Latino Men
subject: Relationships

description: Emergent adulthood is a period of discovery and transition for humans aged 18 to 29 that often requires many practical as well as relational resources. Black and Latino emergent adult men from low socioeconomic backgrounds often navigated through this time period through alternate pathways because of a lack of resources. They may have also experienced substantial stress in childhood that prompted the reliance on hegemonic masculinity as a guide for how to cope with these stressors. This study sought to examine how Black and Latino emergent adult men negotiated their relational needs and abilities within the context of their masculine identities. Using semi-structured life history interviews, Black and Latino young men were interviewed from two youth development centers in the Washington DC/Baltimore area. Findings suggested that the impact of the provider role as adultified children, as well as exposure to violence, increased the participant’s likelihood of hegemonic masculine disconnection from family and friends in emergent adulthood. However, this disconnection was often complicated given their human desire for closeness and support as well as obligations to family members. This complexity was conceptualized as a type of relational bind. Participants used a variety of strategies to resolve this bind that often left them more isolated.
Herstellung und Charakterisierung von Hochtemperatursupraleiter-Bolometern auf gepufferten Siliziumnitrid-Membranen
Creators: name: Heidenblut, Torsten
Publisher: name: Hannover : Universität
Year: 2001
Subjects: subject: Bolometer
subject: buffer layer
subject: superconductor
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: [no abstract]
Regional characteristics, opportunity perception and entrepreneurial activities
Creators: name: Stuetzer, Michael
name: Obschonka, Martin
name: Brixy, Udo
name: Sternberg, Rolf
name: Cantner, Uwe
Publisher: name: New York, NY : Springer New York LLC
Year: 2013
Subjects: subject: Creative class
subject: Global Entrepreneurship Monitor (GEM)
subject: Nascent entrepreneurship
subject: Opportunity perception
subject: Regional entrepreneurship
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: This article seeks to better understand the link between regional characteristics and individual entrepreneurship. We combine individual-level Global Entrepreneurship Monitor data for Western Germany with regional-level data, using multilevel analysis to test our hypotheses. We find no direct link between regional knowledge creation, the economic context and an entrepreneurial culture on the one side and individual business start-up intentions and start-up activity on the other side. However, our findings point to the importance of an indirect effect of regional characteristics as knowledge creation, the economic context and an entrepreneurial culture have an effect on the individual perception of founding opportunities, which in turn predicted start-up intentions and activity. The final publication is available at Springer via http://dx.doi.org/10.1007/s11187-013-9488-6.
Sign-preserving of principal eigenfunctions in P1 finite element approximation of eigenvalue problems of second-order elliptic operators
Creators: name: Huang, Weizhang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65N25, 65N30, 65N30

description: This paper is concerned with the P1 finite element approximation of the eigenvalue problem of second-order elliptic operators subject to the Dirichlet boundary condition. The focus is on the preservation of basic properties of the principal eigenvalue and eigenfunctions of continuous problems. It is shown that when the stiffness matrix is an irreducible $M$-matrix, the algebraic eigenvalue problem maintains those properties such as the smallest eigenvalue being real and simple and the corresponding eigenfunctions being either positive or negative inside the physical domain. Mesh conditions leading to such a stiffness matrix are also studied. A sufficient condition is that the mesh is simplicial, acute when measured in the metric specified by the inverse of the diffusion matrix, and interiorly connected. The acute requirement can be replaced by the Delaunay condition in two dimensions. Numerical results are presented to verify the theoretical findings.
description: 22 pages
Statistical Analysis of Current Sheets in Three-Dimensional Magnetohydrodynamic Turbulence
Creators: name: Zhdankin, Vladimir
name: Uzdensky, Dmitri A.
name: Perez, Jean C.
name: Boldyrev, Stanislav
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We develop a framework for studying the statistical properties of current sheets in numerical simulations of 3D magnetohydrodynamic (MHD) turbulence. We describe an algorithm that identifies current sheets in a simulation snapshot and then determines their geometrical properties (including length, width, and thickness) and intensities (peak current density and total energy dissipation rate). We then apply this procedure to simulations of reduced MHD turbulence and perform a statistical analysis on the obtained population of current sheets. We evaluate the role of reconnection by separately studying the populations of current sheets which contain magnetic X-points and those which do not. We find that the statistical properties of the two populations are different in general. We compare the scaling of these properties to phenomenological predictions obtained for the inertial range of MHD turbulence. Finally, we test whether the reconnecting current sheets are consistent with the Sweet-Parker model.
description: 19 pages, 19 figures
Experimental Characterization of the Thermal Response of Firefighter Protective Ensembles Under Non-Flaming Convective Exposure
Creators: name: DiPietro, Thomas Phillip
Publisher: name: Digital Repository at the University of Maryland
Year: 2024
Subjects: subject: Engineering
subject: Convection
subject: Copper Calorimeter
subject: Firefighter
subject: Hot Air Circulating Oven
subject: Protective Ensemble
subject: Second-Degree Burn

description: Thermal burns are one of the most serious injuries a firefighter can sustain while operating in a structure fire despite being fully covered in gear designed to protect them from thermal exposure. Extensive experimentation has been conducted into the performance of a firefighter’s protective ensemble when caught in a high radiative heat flux environment to ensure the wearer has enough time to escape to safety. High heat flux tests are beneficial in estimating safe operating times, but firefighters are also getting burned in fire environments that are thought to be routine exposures. The current study explored the thermal response of three-layer firefighter protective ensembles exposed to a majority convective, low-level heat flux in an oven. Through experimentation, the temperature of a copper calorimeter simulating skin beneath two different protective ensembles were measured while exposed to temperatures of 100°C, 150°C, 200°C, 250°C, and 300°C. The time for the copper calorimeter to reach a temperature of 55°C (the temperature a second-degree burn has the potential to occur to human skin) was recorded and compared to currently accepted thermal operating time limits for firefighters. Results show that once exposure reached above 100°C the time for a potential burn injury to occur fell below the predicted safe operational time for firefighters of 15–20 minutes when the PPE was in contact with the copper disk. The time to potential burn injury and test temperature exhibited an exponentially decaying relationship which is expected to continue as temperatures increase beyond those tested in the current study. Although consisting of different layers of material, both types of protective ensembles tested responded similarly and demonstrated no significant differences in time to potential burn injury at every temperature. Additional tests were conducted in the oven with an air gap placed below the protective ensemble as well as using the original test set up with a mostly radiative heat source to compare results and evaluate different exposures and conditions for future experimentation.
Systembetrachtung von Störaussendungs-Messaufbauten bei Komponenten mit Hochvolt- und Niedervolt Bordnetzen hinsichtlich der Masseverbindungen
Creators: name: Wiegand, Marc
name: Fromm, Michael
Publisher: name: Frankfurt/Main : mesago
Year: 2018
Subjects: subject: Bordnetz
subject: Übersprechen
subject: Elektrofahrzeug
subject: Filterschaltung
subject: Störquelle
subject: Masseband
subject: Messaufbau
subject: Einbausituation
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: Komponenten von Elektrofahrzeugen sind im Allgemeinen sowohl mit dem Hochvolt- als auch mit dem Niedervolt-Bordnetz verbunden. Bei den Aufbauten für die Störaussendungsprüfung ist der Prüfling demzufolge auch mit beiden Bordnetzen verbunden. Schematische Skizzen dieser Aufbauten sind z.B. in der CISPR25 zu finden. Der Prüfling steht hierbei standardmäßig isoliert, die Verbindung zur Bezugsmasseplatte erfolgt daher über eine Leitung oder über ein Masseband. Ziel sollte es hierbei sein, die Einbausituation im Fahrzeug nachzubilden. Betrachtet man bei leistungselektronischen Schaltungen übliche Filterschaltungen, so kommen dabei häufig y-Kondensatoren zum Einsatz, welche die vorhandenen Störströme über das Gehäuse zur Störquelle zurückführen sollen. Ein Teil dieser Störströme fließt allerdings auch über die Masseverbindungen des Prüflings zu Bezugsmassefläche ab. Durch die vorhandenen Impedanzen der Masseverbindungen kommt es nun zum Übersprechen der Störungen zwischen den einzelnen Spannungsebenen. Der Einfluss dieses Übersprechens soll im Folgenden näher untersucht und modelliert werden. Ein Augenmerk dabei liegt dabei darauf, die systembedingten Grenzen verschiedener Entstörmaßnahmen zu ermitteln. Weiterhin sollen Vorschläge zur Optimierung der Messaufbauten diskutiert werden.
Technologieorientierte Kompetenzanalyse produzierender Unternehmen
Creators: name: Franzke, Stefan
Publisher: name: Hannover : Universität
Year: 2001
Subjects: subject: Competence analysis
subject: strength-weakness-analysis
subject: production chain
subject: Dewey Decimal Classification::600 | Technik::650 | Management

description: [no abstract]
X-ray spectral cut-off and the lack of hard X-ray emission from two ultraluminous X-ray sources M81 X-6 and Holmberg IX X-1
Creators: name: Dewangan, G. C.
name: Jithesh, V.
name: Misra, R.
name: Ravikumar, C. D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present broadband X-ray spectral study of two ultraluminous X-ray sources (ULXs), M81 X-6 and Holmberg IX X-1 based on Suzaku & XMM-Newton observations. We perform joint broadband spectral analysis of the brightest sources in the field, i.e. the two ULXs and the active galactic nucleus (AGN) in M81, and demonstrate that the X-ray spectra of the ULXs cut off at energies more than about 3keV with negligible contribution at high energies in the Suzaku HXD/PIN band. The 90% upper limit on the 10-30keV band luminosity of an underlying broadband power-law component is 3.5e38 ergs/s for M81 X-6 and 1.2e39ergs/s for Holmberg IX X-1. These limits are more than an order of magnitude lower than the bolometric (0.1-30 keV) luminosity of 6.8e39ergs/s for M81 X-6 and 1.9e40 ergs/s for Holmberg IX X-1. Our results confirm earlier indications of spectral cut-offs inferred from the XMM-Newton observations of bright ULXs and show that there isn't an additional high energy power-law component contributing significantly to the X-ray emission. The spectral form of the two ULXs are very different from those of Galactic black hole X-ray binaries (BHBs) or AGNs. This implies that the ULXs are neither simply scaled-up versions of stellar mass BHBs or scaled-down versions of AGNs.
description: 5 pages, Submitted to ApJ Letters
title: Brexit and CDS spillovers across UK and Europe
Creators: name: Bouoiyour, Jamal
name: Selmi, Refk
Publisher: name: Università Carlo Cattaneo - LIUC
Year: 2019

description: The purpose of the paper is twofold. First, it aims at identifying when UK and European (France, Germany, Italy and Spain) Credit Default Swaps (CDSs) exhibit explosivity with respect to their past behaviors. Second, it seeks to quantify the dynamics of CDS volatility spillover effects surrounding the UK’s EU membership referendum commonly known as "Brexit". Using a recursive identification algorithm and new spillover measures suggested by Diebold and Yilmaz (2012), two interesting findings were drawn. We detect significant build-ups in CDS prices for all countries under study soon after the day relative to the announcement of Brexit. In addition, we show that the great uncertainty over Brexit generates significant risk spillovers across the underlined CDS. In particular, we find that UK, Italy and Spain are the "net volatility transmitters", while France and Germany seem the "net volatility receivers". Our findings may help in formulating appropriate regulatory policies and designing effective hedging strategies
Metabolite profiling of somatic embryos of Cyclamen persicum in comparison to zygotic embryos, endosperm, and testa
Creators: name: Winkelmann, Traud
name: Ratjens, Svenja
name: Bartsch, Melanie
name: Rode, Christina
name: Niehaus, Karsten
name: Bednarz, Hanna
Publisher: name: Lausanne : Frontiers Media Sa
Year: 2015
Subjects: subject: in vitro propagation
subject: proline
subject: ornamental plant
subject: seeds
subject: somatic embryogenesis
subject: seed development
subject: arabinogalactan proteins
subject: tissue-cultures
subject: energy status
subject: embryogenesis
subject: plants
subject: growth
subject: acid
subject: mill
subject: oligosaccharides
subject: Dewey Decimal Classification::500 | Naturwissenschaften

description: Somatic embryogenesis has been shown to be an efficient in vitro plant regeneration system for many crops such as the important ornamental plant Cyclamen persicum, for which this regeneration pathway of somatic embryogenesis is of interest for the vegetative propagation of parental lines as well as elite plants. However, somatic embryogenesis is not commercially used in many crops due to several unsolved problems, such as malformations, asynchronous development, deficiencies in maturation and germination of somatic embryos. In contrast, zygotic embryos in seeds develop and germinate without abnormalities in most cases. Instead of time-consuming and labor-intensive experiments involving tests of different in vitro culture conditions and plant growth regulator supplements, we follow a more directed approach. Zygotic embryos served as a reference and were compared to somatic embryos in metabolomic analyses allowing the future optimization of the in vitro system. The aims of this study were to detect differences in the metabolite profiles of torpedo stage somatic and zygotic embryos of C. persicum. Moreover, major metabolites in endosperm and testa were identified and quantified. Two sets of extracts of two to four biological replicates each were analyzed. In total 52 metabolites were identified and quantified in the different tissues. One of the most significant differences between somatic and zygotic embryos was that the proline concentration in the zygotic embryos was about 40 times higher than that found in somatic embryos. Epicatechin, a scavenger for reactive oxygen species, was found in highest abundance in the testa. Sucrose, the most abundant metabolite was detected in significantly higher concentrations in zygotic embryos. Also, a yet unknown trisaccharide, was significantly enriched in zygotic embryos.
title: Private capital inflow and growth in former Soviet-bloc countries: roles of stock market and demand-side macroeconomic policy
Creators: name: Suliman, Adil H.
name: Shariff,  Mohammed Zakaullah
name: AlMutairi, Humoud
name: ElMawazini, Khaled
Publisher: name: Università Carlo Cattaneo - LIUC
Year: 2019

description: This paper contributes to the empirical literature by investigating the impact of private capital inflows on economic growth across former Soviet-bloc countries between 1990 and 2015. Roles of the stock market and of demand-side macroeconomic policy are investigated using panel data analysis. The result suggests that though foreign direct investment (FDI) contributing relatively more to economic growth than foreign portfolio investments (FPI), it interacts with stock market trading to negatively influence growth. Final Consumption Expenditure, Inflation, and Gross Savings have negative influences on growth. Our results support the notion that private capital inflow does not allowed to provide sufficient capital to local savings and growth, which is a sign of the crowding-out effect. We suggest that the demand-side macroeconomic policy and stock market activity should tailored more to support economic growth.
The potentials of partial least squares structural equation modeling (PLS-SEM) in leisure research
Creators: name: Kono, Shintaro
name: Sato, Mikihiro
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy

description: Partial least squares structural equation modeling (PLS-SEM) is a multivariate statistical technique that helps examine complex relationships among a number of variables. Although its use has increased over decades, PLS-SEM remains underutilized in leisure research. The purpose of this methodological paper is to offer a primer on PLS-SEM for leisure researchers and to present a critical review of PLS-SEM’s strengths and limitations, while identifying potential applications of PLS-SEM across different sub-fields and theories in leisure research. Specifically, as to strengths, we discuss PLS-SEM’s sample size requirements, accommodation of formative and reflective measures, ability to model many variables and relationships, and statistical prediction capacity. In terms of its limitations, we review criticisms regarding PLS-SEM’s biased estimates as well as the lack of measurement error estimation and model fit assessment tools. Lastly, we provide recommendations for leisure researchers who wish to use PLS-SEM and journal editors and reviewers who assess PLS-SEM articles.
Regular and chaotic orbits near a massive magnetic dipole
Creators: name: Kovář, Jiří
name: Kopáček, Ondřej
name: Karas, Vladimí
name: Kojima, Yasufumi
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Within the framework of Bonnor's exact solution describing a massive magnetic dipole, we study the motion of neutral and electrically charged test particles. In dependence on the Bonnor spacetime parameters, we determine regions enabling the existence of stable circular orbits confined to the equatorial plane and of those levitating above the equatorial plane. Constructing Poincaré surfaces of section and recurrence plots, we also investigate the dynamics of particles moving along general off-equatorial trajectories bound in effective potential wells forming around the stable circular orbits. We demonstrate that the motion in the Bonnor spacetime is not integrable. This extends previous investigations of generalized Störmer's problem into the realm of exact solutions of Einstein-Maxwell equations, where the gravitational and electromagnetic effects play a comparable role on the particle motion.
description: 27 pages, 14 figures
Insightful Advancement and Opportunities for Microbial Bioplastic Production
Creators: name: Samadhiya, Kanchan
name: Sangtani, Rimjhim
name: Nogueira, Regina
name: Bala, Kiran
Publisher: name: Lausanne : Frontiers Media
Year: 2022
Subjects: subject: algae
subject: algae-bacteria consortia
subject: microbial bioplastic
subject: mixed microbial cultures
subject: polyhydroxyalkanoates production
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Impetuous urbanization and population growth are driving increased demand for plastics to formulate impeccable industrial and biomedical commodities. The everlasting nature and excruciating waste management of petroleum-based plastics have catered to numerous challenges for the environment. However, just implementing various end-of-life management techniques for assimilation and recycling plastics is not a comprehensive remedy; instead, the extensive reliance on finite resources needs to be reduced for sustainable production and plastic product utilization. Microorganisms, such as bacteria and algae, are explored substantially for their bioplastic production repertoire, thus replacing fossil-based plastics sooner or later. Nevertheless, the utilization of pure microbial cultures has led to various operational and economical complications, opening the ventures for the usage of mixed microbial cultures (MMCs) consisting of bacteria and algae for sustainable production of bioplastic. The current review is primarily focuses on elaborating the bioplastic production capabilities of different bacterial and algal strains, followed by discussing the quintessence of MMCs. The present state-of-the-art of bioplastic, different types of bacterial bioplastic, microalgal biocomposites, operational factors influencing the quality and quantity of bioplastic precursors, embracing the potential of bacteria-algae consortia, and the current global status quo of bioplastic production has been summarized extensively. Copyright © 2022 Samadhiya, Sangtani, Nogueira and Bala.
Intensifying the use of benefit sanctions: an effective tool to increase employment?
Creators: name: Boockmann, Bernhard
name: Thomsen, Stephan L.
name: Walter, Thomas
Publisher: name: London : SpringerOpen
Year: 2014
Subjects: subject: Benefit sanctions
subject: IV
subject: LATE
subject: Welfare recipients
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie

description: In Germany, imposition of benefit cuts for non-compliant welfare recipients depends on the policy of the local welfare agencies resulting in considerable regional variation, expressed in milder and stricter sanction regimes. Findings from international studies show, that benefit sanctions can substantially increase individual employment uptake. This raises the question, whether a stricter use of sanctions will be effective in Germany. We analyze this question by exploiting the variation of regional sanction regimes as instrumental variables to estimate the LATE of sanctions on the individual employment probability. A tighter sanction policy can be quite effective for non-compliant welfare recipients. JEL codes: I38; J64; C31
Faraday Rotation and Circular Dichroism Spectra of Gold and Silver Nanoparticle Aggregates
Creators: name: Pakdel, Sahar
name: Miri, MirFaez
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study the magneto-optical response of noble metal nanoparticle clusters. We consider the interaction between the light-induced dipoles of particles. In the presence of a magnetic field, the simplest achiral cluster, a dimer, exhibits circular dichroism (CD). The CD of a dimer depends on the directions of the magnetic field and the light wave vector. The CD of a populous cluster weakly depends on the magnetic field. Upon scattering from the cluster, an incident linearly polarized light with polarization azimuth $φ$, becomes elliptically polarized. The polarization azimuth rotation and ellipticity angle variation are sinusoidal functions of $2 φ$. The anisotropy and the chirality of the cluster control the amplitude and offset of these sinusoidal functions. The Faraday rotation and Faraday ellipticity are also sinusoidal functions of $2 φ$. Near the surface plasmon frequency, Faraday rotation and Faraday ellipticity increase.
title: Institutional insights into contract theories: a comparative approach to the French and German dairy industries under liberalization
Creators: name: Derville, Marie
name: Fink-Kessler, Andrea
Publisher: name: Università Carlo Cattaneo - LIUC
Year: 2019

description: To analyse farmer market access following European dairy-market liberalization, this article provides a novel, institutional and spatially explicit approach to contract theory. Contractual reciprocal agreements, bargaining power, the regulatory framework, the regional market structure, quality differentiation and resource pooling are considered. The multi-scalar conceptual framework developed allows for shedding light on the value creation and sharing process in supply chains. A comparative case study highlights that market liberalization and contractual relations question the farmers’ collective rights and responsibilities in supply chains and production basins. Depending on the regional production model, viable strategies differ; concentration and economies of scale is required for a generic market while specific quality or the provision of environmental services can support more diversified production models. Public policies can support farmers by endorsing large regional producer organizations and framework contracts and by favouring information transparency. CAP national and regional orientation is another manner by which to support the competitiveness of regional supply chains, but it questions the purpose of the "common" European policy.
Objective evaluation criteria for 2D-shape estimation results of moving objects
Creators: name: Mech, Roland
name: Marques, Ferran
Publisher: name: Heidelberg : SpringerOpen
Year: 2002
Subjects: subject: shape evaluation
subject: objective evaluation
subject: shape estimation
subject: segmentation
subject: video object
subject: mpeg
subject: image segmentation
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: The objective evaluation of 2D-shape estimation results for moving objects in a video sequence is still an open problem. First approaches in the literature evaluate the spatial accuracy and the temporal coherency of the estimated 2D object shape. Thereby, it is not distinguished between several estimation errors located around the object contour and a few, but larger, estimation errors. Both cases would lead to similar evaluation results, although the 2D-shapes would be visually very different. To overcome this problem, in this paper, a new evaluation approach is proposed. In it, the evaluation of the spatial accuracy and the temporal coherency is based on the mean and the standard deviation of the 2D-shape estimation errors.
Rota-Baxter 3-Lie algebras
Creators: name: Bai, Ruipu
name: Guo, Li
name: Li, Jianqian
name: Wu, Yong
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 17B05, 17D99

description: In this paper we introduce the concepts of a Rota-Baxter operator and a differential operator with weights on an $n$-algebra. We then focus on Rota-Baxter 3-Lie algebras and show that they can be derived from Rota-Baxter Lie algebras and pre-Lie algebras and from Rota-Baxter commutative associative algebras with derivations. We also establish the inheritance property of Rota-Baxter 3-Lie algebras.
description: 15 pages
title: Development of a Knowledge-Based System for Generating Process Plans Using Group Technology A Study for Norfolk Naval Shipyard
Creators: name: Keene Jr., William P.
Publisher: name: Old Dominion University Libraries
Year: 1995

description: The purpose of this research was to study and analyze the Norfolk Naval Shipyard's manufacturing methods of determining part families and generating part process plans for parts in the machine shop. A knowledge-based decision support system was designed based on knowledge acquired from machinist experts and documented sources of the Norfolk Naval Shipyard. The system interprets specific part information provided by the user, categorizes parts into part families and generates process plans to manufacture the parts. The system was evaluated and tested for parts provided by Norfolk Naval Shipyard.
Expression and Purification of the Cell-Penetrating Peptide MAP Fused to Protein Cargo
Creators: name: CHUNG, REN-JHE
Publisher: name: Digital Repository at the University of Maryland
Year: 2024
Subjects: subject: Bioengineering

description: Candida albicans is a common fungal pathogen that presents a significant public health issue due to its resistance to traditional antifungal small molecule medications. While large therapeutics offer potential as alternative treatments with novel mechanisms of action, their efficacy is hindered by low cellular uptake and limited accessibility to intracellular targets. Cell-penetrating peptides (CPPs) are promising vehicles for facilitating the intracellular delivery of large biomolecules. CPPs are short protein peptides capable of crossing various membrane barriers, even when conjugated to cargo molecules. However, producing CPP fusion proteins can be challenging due to their higher toxicity to host cells. To enhance expression, we studied and optimized several contributing factors, including expression partners, host cell strains, sequential order of CPP and cargo, and induction conditions, for the fusion of CPP MAP to the cargo monomeric enhanced green fluorescent protein (meGFP). Our findings indicated that the expression partner, combined with positioning MAP at the N-terminus of the cargo, resulted in relatively high expression levels. The highest expression level was achieved in the BL21(DE3) Escherichia coli strain, with induction at 20°C for 24 hours. These results support further research on the application of MAP recombinant proteins and lay the foundation for the generalization of CPP recombinant protein expression.
The CDMS view on molecular data needs of Herschel, SOFIA, and ALMA
Creators: name: Müller, Holger S P
name: Endres, C P
name: Stutzki, J
name: Schlemmer, S
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: The catalog section of the Cologne Database for Molecular Spectroscopy, CDMS, contains mostly rotational transition frequencies, with auxiliary information, of molecules observable in space. The frequency lists are generated mostly from critically evaluated laboratory data employing established Hamiltonian models. The CDMS has been online publicly for more than 12 years, e.g., via the short-cut http://www.cdms.de. Initially constructed as ascii tables, its inclusion into a database environment within the Virtual Atomic and Molecular Data Centre (VAMDC, http://www.vamdc.eu) has begun in June 2008. A test version of the new CDMS is about to be released. The CDMS activities have been part of the extensive laboratory spectroscopic investigations in Cologne. Moreover, these activities have also benefit from collaborations with other laboratory spectroscopy groups as well as with astronomers. We will provide some basic information on the CDMS and its participation in the VAMDC project. In addition, some recent detections of molecules as well as spectroscopic studies will be discussed to evaluate the spectroscopic data needs of Herschel, SOFIA, and ALMA in particular in terms of light hydrides, complex molecules, and metal containing species
description: 14 pages, 1 figure; AIP Conf. Proc., accepted; Proceedings of the Eighths International Conference on Atomic and Molecular Data and Their Application
Towards Empirical Evidence for the Impact of Microservice API Patterns on Software Quality: A Controlled Experiment
Creators: name: Wójcik, Pawel
Publisher: name: Zenodo
Year: 2023
Subjects: software
design
pattern
microservice
api
quality
controlled
experiment
empirical
online
survey
understandability
usability
attribute
metric
participant
open
science

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