cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Scaling Behavior of the Longitudinal and Transverse Transport in Quasi One-Dimensional Organic Conductors
Creators: name: Dressel, M.
name: Petukhov, K.
name: Salameh, B.
name: Zornoza, P.
name: Giamarchi, T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report on dc and microwave experiments of the low-dimensional organic conductors (TMTSF)$_2$PF$_6$ and (TMTSF)$_2$ClO$_4$ along the $a$, $b^{\prime}$, and $c^*$ directions. In the normal state of (TMTSF)$_2$PF$_6$ below T=70 K, the dc resistivity follows a power-law with $ρ_a$ and $ρ_{b^{\prime}}$ proportional to $T^2$ while $ρ_{c^*}\propto T$. Above $T = 100$ K the exponents extracted from the data for the $a$ and $c^*$ axes are consiste1nt with what is to be expected for a system of coupled one-dimensional chains (Luttinger liquid) and a dimensional crossover at a temperature of about 100 K. The $b^\prime$ axis shows anomalous exponents that could be attributed to a large crossover between these two regimes. The contactless microwave measurements of single crystals along the $b^{\prime}$-axis reveal an anomaly between 25 and 55 K which is not understood yet. The organic superconductor (TMTSF)$_2$ClO$_4$ is more a two-dimensional metal with an anisotropy $ρ_a/ρ_{b^{\prime}}$ of approximately 2 at all temperatures. Such a low anisotropy is unexpected in view of the transfer integrals. Slight indications to one-dimensionality are found in the temperature dependent transport only above 200 K. Even along the least conducting $c^*$ direction no region with semiconducting behavior is revealed up to room temperature.
description: 11 pages, 10 figures
title: Praktische Anwendung von Bauprojektmanagementmethoden
Creators: name: Mulahasanovic, Aida
Publisher: name: TU Wien
Year: 2015
Subjects: subject: Projektmanagement
subject: Unternehmensorganisation
subject: IT

description: Software und Tools werden im Projektmanagement immer wichtiger. Ein sehr starker Konkurrenzkampf, geringe Gewinnspannen und Konjunkturschwankungen erfordern zunehmend eine Optimierung der Bauprojektabwicklung. Verluste durch gescheiterte oder schlecht realisierte Bauvorhaben können nur wenige Unternehmen unabhängig von ihrer Größe in Kauf nehmen. Das Projektmanagement trägt entscheidend zum Erfolg oder Misserfolg bei. Auf Grund dessen bedarf es Optimierungsmöglichkeiten und unterstützenden Methoden für die Projektarbeit. Durch die technologische Weiterentwicklung haben sich für die Bauinformatik im Bereich des Projektmanagements neue Möglichkeiten eröffnet. Einige Gedankengänge und Ideen sind nicht neu, wie beispielsweise ein kontinuierlicher Informationsfluss ohne Medienbrüche. Erst mit der Weiterentwicklung von IT-Technologien wie z.B. Hochleistungsprozessoren oder neuer Datenformate, konnte diese realisiert werden. Speziell auf den Bausektor zugeschnittene Software sowie damit verbundener Instrumente wurden weiterentwickelt und können u.a. als Folge von höherer Kompatibilität stärker fachübergreifend kommunizieren. Ein Ergebnis dieses Trends ist die Arbeitsweise des Building Information Modeling. Die Idee an einem Modell interdisziplinär zu arbeiten, alle Informationen an einem Ort gesammelt zu haben und dadurch eine Optimierung aller Prozesse zu erwirken, wird daher stärker denn je verfolgt. Die Frage ist aber, wie weit die Anwender bereits in diesem Sinne mit vorhandenen Softwareprodukten arbeiten, sie bereit sind darauf einzugehen und wie effektiv und ausgereift die Technologie für das Projektmanagement tatsächlich ist. Sind die vorhandenen IT-Möglichkeiten tatsächlich im PM-Alltag angekommen und werden auch bei Standardaufgaben angewendet oder schöpft das PM diese noch nicht voll aus? Welche softwarebedingten Möglichkeiten nutzt das PM im Bauprojektmanagement und wie weit ist 5D BIM auf dem österreichischen Anwendermarkt angekommen? Auf Grund fehlender Informationen zum aktuellen Stand in der Anwendung von Projektmanagement-Software und speziell zu BIM im PM-Bereich habe ich die Arbeit erstellt. Im Folgenden wird zu Beginn daher kurz grundlegend auf das Projektmanagement eingegangen. Auf Grund der Vielzahl an Literatur zu diesem Thema, siehe beispielsweise Jens Liebchen, Markus Viering: Bau-Projekt-Management - Grundlagen und Vorgehensweise, wird hier nicht näher darauf eingegangen. Im Weiteren werden Begriffe und Definitionen erläutert, die Projektmanagementmethoden sowie die angewandte IT (besser) verständlich machen sollen. Dabei wird verstärkt auf die Begriffe der Informatik und speziell des BIM Bereichs eingegangen, da diese relativ neu sind und immer notwendiger werden.
Supplementary Material from Accounting for variability in ion current recordings using a mathematical model of artefacts in voltage-clamp experiments. 8 April 2020
Creators: name: Lei, Chon Lok
name: Clerx, Michael
name: Whittaker, Dominic G.
name: Gavaghan, David J.
name: Boer, Teun P. De
name: Mirams, Gary R.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Biophysics
subject: Computational Biology
subject: 10202 Biological Mathematics
subject: FOS: Mathematics
subject: 19999 Mathematical Sciences not elsewhere classified

description: A PDF file of supplementary methods and results
Longitudinal eccentricity decorrelations in heavy ion collisions
Creators: name: Behera, Arabinda
name: Nie, Maowu
name: Jia, Jiangyong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In heavy-ion collisions, the harmonic flow $V_n$ of final-state particles are driven by the eccentricity vector ${\mathcal{E}}_n$ that describe the shape of the initial fireball projected in the transverse plane. It is realized recently that the structure and shape of the fireball, and consequently the ${\mathcal{E}}_n$, fluctuate in pseudorapidity $η$ in a single event, ${\mathcal{E}}_n(η)$. This leads to eccentricity decorrelation between different $η$, driving the longitudinal flow decorrelations observed in the experiments. Using a Glauber model with a paramerterized longitudinal structure, we have estimated the eccentricity decorrelations and related them to the measured flow decorrelation coefficients for elliptic flow $n=2$ and triangular flow $n=3$. We investigated the dependence of eccentricity decorrelations on the choice of collision system in terms of the size, asymmetry and deformation of the nuclei. We found that these nuclear geometry effects lead to significant and characteristic patterns on the eccentricity decorrelations, which describe the measured ratios of the flow decorrelations between Xe+Xe and Pb+Pb collisions. These patterns can be searched for using existing experimental data at RHIC and the LHC, and if confirmed, they will provide a mean to improve our understanding of the initial state of the heavy-ion collisions.
description: 7 pages, 5 figures
Star Edge-Coloring of Square Grids
Creators: name: Holub, Přemysl
name: Lužar, Borut
name: Mihaliková, Erika
name: Mockovčiaková, Martina
name: Soták, Roman
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C15

description: A star edge-coloring of a graph $G$ is a proper edge-coloring without bichromatic paths or cycles of length four. The smallest integer $k$ such that $G$ admits a star edge-coloring with $k$ colors is the star chromatic index of $G$. In the seminal paper on the topic, Dvořák, Mohar, and Šámal asked if the star chromatic index of complete graphs is linear in the number of vertices and gave an almost linear upper bound. Their question remains open, and consequently, to better understand the behavior of the star chromatic index, this parameter has been studied for a number of other classes of graphs. In this paper, we consider star edge-colorings of square grids; namely, the Cartesian products of paths and cycles and the Cartesian products of two cycles. We improve previously established bounds and, as a main contribution, we prove that the star chromatic index of graphs in both classes is either $6$ or $7$ except for prisms. Additionally, we give a number of exact values for many considered graphs.
title: Enacting and experiencing formative assessment from a sociocultural perspective : a case study in a Year 4 classroom
Creators: name: Herron, Sheena Rosemary
Publisher: name: The Open University
Year: 2012

description: The claim for formative assessment is that it supports significant gains in children's measured achievements. The literature however reveals significant gaps in that there is little practitioner-based research, a lack of theoretical justification for formative assessment practices with sociocultural approaches underrepresented, and younger children neglected. The purpose of the study was to develop and enact a sociocultural pedagogy and explore how formative assessment is understood and enabled, in this approach to teaching and learning. It was carried out in a Northern Ireland primary school, exploring, from a practitioner's perspective, the potential of formative assessment to support young children aged 7-8 years becoming writers. An approach to writing was developed that viewed it as an element in the larger project of narrative construal (Bruner, 1996). Cook and Brown's (1999, see Figure 2 below) proposition of four distinct and co-equal forms of know ledge: explicit, tacit, individual and group, distinguished from knowing - that which emerges in interaction with the social and physical world, was used to understand how in the interplay of knowledge and knowing new knowledge and ways of knowing are generated. The metaphor of formativity (Murphy, 2009) was found helpful to capture the nature of what teachers need to attend to in supporting the process of 'bridging epistemologies' within this 'generative dance'. Ethnographic methodology was used: this involved a hybrid, mediational case study involving three cases of Year 4 classes to allow dialectical relationships among different planes of mediation to be taken into account (Lave, 1988; Rogoff, 1995). Main sources of data were observation, field notes, informal interviews and reflective journal writing which served as a dialogic tool (Wells, 1999). The fmdings reveal how 'formativity' emerges in the jointly negotiated reification of the community (Wenger, 1998). It is from this shared resource, that teachers and learners appropriate whatever is formative for them to progress deeper into practice. Reconceptualising writing outside of the narrowly focused schooled curriculum liberated the children to write in response to their own interest and purposes, making it possible for them to develop identities as writers. The research also revealed that fundamental change in teachers' practice requires associated change in institutional cultures and practices and policies that empower, inspire and treat teachers and children as knowledgeable and trustworthy.
1. AWPTS 23_24 Talk 1 : Are we ready to live longer? - Accessible version
Creators: name: Odunewu, Chrispina
Publisher: name: The Open University
Year: 2023
Subjects: classificationCode: 420301
subject: Aged health care
classificationCode: 420303
subject: Family care
classificationCode: 420304
subject: General practice
classificationCode: 420305
subject: Health and community services
classificationCode: 420306
subject: Health care administration
classificationCode: 420307
subject: Health counselling
classificationCode: 420309
subject: Health management
classificationCode: 420311
subject: Health systems
classificationCode: 420399
subject: Health services and systems not elsewhere classified

description: After introducing the Ageing Well Public Talk series by Jitka, we will explore the ageing brain and how we can support our brain with Maintenance Cognitive Stimulation Therapy. Maintenance Cognitive Stimulation Therapy is a programme of activities and discussion, aimed at the general enhancement of cognitive and social functioning.Rachel Turner – Memory Services Coordinator, Age UK Milton Keynes. Rachel has been facilitating Cognitive Maintenance Programmes via Age UK Milton Keynes.Dr Jitka Vseteckova - Senior Lecturer Health and Social Care, Faculty of Wellbeing, Education & Language Studies, The Open University. Jitka has a longstanding interest and passion in researching ageing and engaging with public.
Structural characterization of bacterial type III secretion system components
Creators: name: Yip, Calvin K.
Publisher: name: University of British Columbia
Year: 2010

description: The virulence-associated type III secretion system (T3SS) mediates the direct translocation of bacterial proteins known as effectors into the cytoplasm of eukaryotic cells, a process essential to the pathogenesis of many Gram negative pathogens. In this thesis, the molecular architecture of the T3SS was investigated through the biochemical and structural characterization of four representative components: EspA, EscJ, and EscC from enteropathogenic Escherichia coli (EPEC), and PrgH from Salmonella typhimurium. EspA is a component of the EPEC T3SS that assembles into extracellular filaments believed to be the molecular conduit for protein translocation. Results from biochemical analysis showed that EspA alone is sufficient to form filamentous structures and that an intact C-terminal coiled coil segment is required for oligomerization. CesA, the EspA-specific chaperone, was found to trap EspA in a monomeric state. Crystallographic analysis of the heterodimeric CesA-EspA complex at 2.8Å revealed that EspA contains two long α-helices, which are engaged in extensive coiled coil interactions with CesA. EPEC EscJ is a member of the highly conserved YscJ family of proteins believed to form the inner membrane ring substructure of the T3SS. Sucrose gradient experiments on EPEC membranes showed that EscJ localizes to the inner membrane. The crystal structure of EscJ, refined to 1.8Å, revealed repetitive and extensive intersubunit packing in the crystal lattice, which allowed the construction of a 24-subunit ring model. Data from stoichiometric and surface mapping analyses of Salmonella typhimurium PrgK validated this model, which possesses surface features indicative of a role as an assembly platform. Salmonella typhimurium PrgH and its distant orthologues represent the second major component of the inner membrane ring complex. Detergent extraction experiments confirmed that PrgH is a membrane protein. A putative transmembrane segment appears to target this protein to the membrane as the predicted cytoplasmic and periplasmic regions of PrgH could exist as soluble, independent folding domains. The crystal structure of PrgH(170-362), the core periplasmic domain, refined to 2.3Å resolution, showed that it possess two EscJ-like domains, which may be involved in intersubunit interactions. The outer membrane channel elaborated by the secretin (YscC) family of proteins represents the second major ring complex in the T3SS. Limited proteolysis and protein expression studies of EscC, the EPEC T3SS secretin, confirmed the modular nature predicted for this family. Surface electrostatic analysis of the crystal structure of the N-terminal domain of EscC, EscC(22-174), determined to 2.2Å, revealed two unique charge patches. Mutagenesis and complementation experiments demonstrated that one of these patches is required for proper function of EscC.
Open, Dynamic Databases, Workflows and Transformations to Support Metabolomics
Creators: name: Schymanski, Emma
Publisher: name: Zenodo
Year: 2022
Subjects: PubChemLite
MetFrag
Exposome

description: Keynote presentation given (virtually) for the EMBO Practical Course on Metabolomics; Bioinformatics for Life Scientists, 24 - 28 October 2022, Wageningen, NL.
Corporate governance, earnings manipulation, and information quality in capital markets
Creators: name: Gao, Yanmin
Publisher: name: University of British Columbia
Year: 2010

description: This thesis was inspired by the accounting scandals around the world at the beginning of the 21st century and the reforms in corporate governance law that followed. We use both theoretical and empirical analysis to focus on several aspects of corporate governance mechanisms. The first study focuses on the board of directors. We develop a dynamic agency model with renegotiation to analyze the interaction between the board’s monitoring and the manager’s earnings manipulation in a firm. The second study broadens the perspective to consider the information in the capital markets with a focus on the role of financial disclosure regulation. It examines how financial disclosure regulation affects the information quality in capital markets, using a strategic investor model in an insider trading setting. The third study investigates these ideas empirically. We construct measures of public, private, and total information quality, and study how they change following the Sarbanes-Oxley Act of 2002 (SOX) in the United States. The key findings of the thesis are as follows. The first study shows that the dynamic incentive contract motivates the manager to work hard on the one hand and to manipulate earnings on the other hand. Even though the board anticipates the earnings manipulation, the board does not unambiguously choose to monitor the manager. The second study demonstrates that the equilibrium market price reflects both the public and a fraction of the private information. While tightened disclosure regulation might improve the quality of public information, the changes in the quality of private information and of total information are ambiguous due to the subtle interplay between public reporting and private information acquisition. The third study provides empirical evidence showing a temporary improvement in the quality of public information following the SOX. The quality of private information decreases and there is no significant change in total information quality. The thesis contributes to the literatures of earnings management and of corporate governance, adding to the growing debate on the costs and benefits of governance reforms. By identifying important indirect effects, we stress the need to consider "substance over form".
The Typical Massive Quiescent Galaxy at z$\sim$3 is a Post-starburst
Creators: name: D'Eugenio, C.
name: Daddi, E.
name: Gobat, R.
name: Strazzullo, V.
name: Lustig, P.
name: Delvecchio, I.
name: Jin, S.
name: Puglisi, A.
name: Calabró, A.
name: Mancini, C.
name: Dickinson, M.
name: Cimatti, A.
name: Onodera, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have obtained spectroscopic confirmation with Hubble Space Telescope WFC3/G141 of a first sizeable sample of nine quiescent galaxies at 2.4
description: 8 pages, 4 figures. To appear on ApJ Letters
title: An interpretive study of student-centred learning through constructivist, humanist and socio-cultural lenses
Creators: name: Tangney, Susan Jean
Publisher: name: The Open University
Year: 2012

description: The notion of student-centred learning is ubiquitous in the pedagogic literature, in learning and teaching statements of universities, and within course documentation. However it is not often defined, and an informal investigation of university staff revealed a variety of conflicting Interpretations. This ambiguity Is problematic for academic developers, and so warranted further Investigation through literature review and interviews with academic staff from the researcher's university. The literature review revealed diversity in understanding, and on examination, ideas were underpinned by a range of perspectives on learning per se. Three different perspectives, namely constructivism, humanism and socio-culturalism were examined for their respective alignment and value in thinking about student-centred learning. Many interpretations were within a constructivist framework, others more aligned with humanist or socio-cultural perspectives. The term student-centred learning was also used in association with contemporary ideas such as employability, widening participation and social justice. A constructivist grounded approach was used to collect data through interviews with lecturers teaching in art and design, and transcripts considered from the three perspectives above. It is argued in the findings that although constructivist interpretations of student-centred learning dominate the literature, other perspectives are also evident in the conceptions and practice of the group interviewed, and incorporation of these offered a more appropriate approach to contemporary issues in higher education, especially in building a partnership approach between lecturers and students. It is suggested that technicist approaches, though often based within constructivism, may have caused the proliferation of a 'slogan' approach to the student-centred learning discourse.
A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
Creators: name: Nason, Paolo
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I show that with simple extensions of the shower algorithms in Monte Carlo programs, one can implement NLO corrections to the hardest emission that overcome the problems of negative weighted events found in previous implementations. Simple variants of the same method can be used for an improved treatment of matrix element corrections in Shower Monte Carlo programs.
description: 29 pages, 6 figures
Speeding up the detectability of the harmonic-space galaxy bispectrum
Creators: name: Montanari, Francesco
name: Camera, Stefano
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a method that allows us for the first time to estimate the signal-to-noise ratio (SNR) of the harmonic-space galaxy bispectrum induced by gravity, a complementary probe to already well established Fourier-space clustering analyses. We show how to do it considering only $\sim1000$ triangle configurations in multipole space, corresponding to a computational speedup of a factor $\mathcal{O}(10^2)-\mathcal{O}(10^3)$, depending on the redshift bin, when including mildly non-linear scales. Assuming observational specifications consistent with forthcoming spectroscopic and photometric galaxy surveys like the Euclid satellite and the Square Kilometre Array (phase 1), we show: that given a single redshift bin, spectroscopic surveys outperform photometric surveys; and that -- due to shot-noise and redshift bin width balance -- bins at redshifts $z\sim1$ bring higher cumulative SNR than bins at lower redshifts $z \sim 0.5$. Our results for the largest cumulative SNR $\sim 15$ suggest that the harmonic-space bispectrum is detectable within narrow ($Δz \sim 0.01$) spectroscopic redshift bins even when including only mildly non-linear scales. Tomographic reconstructions and inclusion of highly non-linear scales will further boost detectability with upcoming galaxy surveys. In addition, we discuss how, using the Karhunen-Loève transform, a detection analysis only requires a $1 \times 1$ covariance matrix for a single redshift bin.
description: 18 pages, 6 figures. New analysis with narrow redshift bins yields SNR ~ 15. Version accepted by JCAP
title: Die Besteuerung von privaten Grundstücksveräußerungen unter besonderer Berücksichtigung aktueller Entscheidungen und verfassungsrechtlicher Aspekte
Creators: name: Eberhardt, Gernot
Publisher: name: TU Wien
Year: 2015
Subjects: subject: Immobilienertragsteuer
subject: Grundstücksveräußerung
subject: Befreiungstatbestand
subject: Selbstberechnung
subject: Verfassungskonformität

description: Mit dem Inkrafttreten des 1. Stabilitätsgesetz 2012 (1. StabG 2012) kam es zu einer wesentlichen Systemumstellung in Bezug auf die Besteuerung von Grundstücksveräußerungen. Mit dem 1. StabG 2012 versuchte der Gesetzgeber sämtlich Veräußerungsgewinne aus Immobilienverkäufen zu erfassen und gewährte nur wenige Ausnahmen. Gleichzeitig werden die Veräußerungsgewinne nunmehr mit einer "Flat Tax" in Höhe von 25 % besteuert, sofern der Steuerpflichtige nicht seine Optionsmöglichkeiten ausübt. Die Berechnung, Einbehaltung und Abführungen der Immo-ESt an die zuständigen Finanzbehörden erfolgt nun durch Rechtsanwälte und Notare als Parteienvertreter. Da der Gesetzgeber das 1. StabG 2012 äußerst kurzfristig und ohne Gewährung von Übergangsfristen verabschiedete und noch dazu bereits nicht mehr steuerverfangene Grundstücke der neuen ImmoESt unterwarf, bestehen zahlreiche verfassungsrechtliche Zweifel an Zulässigkeit der gesetzlichen Regelungen. Gleichzeitig ergeben sich aufgrund der allgemein gefassten Gesetzesbestimmungen Auslegungsfragen. Mit dem Abgabenänderungsgesetz 2012 (AbgÄG 2012) und dem 2. Abgabenänderungsgesetz 2014 (2. AbgÄG 2014) hat der Gesetzgeber bereits Änderungen in der Besteuerung von Grundvermögen vorgenommen und bestehende Lücken geschlossen. Vor diesem Hintergrund sind allerdings schon einige Verfahren vor den jeweils zuständigen Gerichten anhängig. Die vorliegende Arbeit stellt die Gesetzessystematik und den aktuellen Stand zur Auslegung der Gesetzesbegriffe dar. Im Zuge dessen wird insbesondere auf jüngste Gerichtsentscheidungen eingegangen. Abschließend wird die Verfassungskonformität der gesetzlichen Bestimmungen beleuchtet und hinterfragt, inwieweit es noch entsprechenden Klärungsbedarfes durch höchstgerichtliche Entscheidungen oder Gesetzesanpassungen bedarf.
Janus interface entropy and Calabi's diastasis in four-dimensional $\mathcal{N}=2$ superconformal field theories
Creators: name: Goto, Kanato
name: Nagano, Lento
name: Nishioka, Tatsuma
name: Okuda, Takuya
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the entropy associated with the Janus interface in a 4$d$ $\mathcal{N}=2$ superconformal field theory. With the entropy defined as the interface contribution to an entanglement entropy we show, under mild assumptions, that the Janus interface entropy is proportional to the geometric quantity called Calabi's diastasis on the space of $\mathcal{N}=2$ marginal couplings, confirming an earlier conjecture by two of the authors and generalizing a similar result in two dimensions. Our method is based on a CFT consideration that makes use of the Casini-Huerta-Myers conformal map from the flat space to the round sphere.
description: 41 pages, 1 figure; v2: minor typos corrected, preprint number added
Numerical simulations of large-amplitude oscillations in flux-rope solar prominences
Creators: name: Liakh, Valeriia
name: Luna, Manuel
name: Khomenko, Elena
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. Large-amplitude oscillations (LAOs) of the solar prominences are very spectacular but poorly understood phenomena. These motions have amplitudes larger than $10 {\mathrm{\, km \,s^{-1}}}$ and can be triggered by the external perturbations, e.g., Moreton or EIT waves. Aims. Our aim is to analyze the properties of large-amplitude oscillations using realistic prominence models and the triggering mechanism by external disturbances. Methods. We perform time-dependent numerical simulations of LAOs using a magnetic flux rope model with two values of the shear angle and the density contrast. We study the internal modes of the prominence using the horizontal and vertical triggering. In addition, we use the perturbation that arrives from outside in order to understand how such external disturbance can produce LAOs. Results. The period of longitudinal oscillations and its behavior with height show good agreement with the pendulum model. The period of transverse oscillations remains constant with height, suggesting a global normal mode. The transverse oscillations typically have shorter periods than the longitudinal oscillations. Conclusions. The periods of the longitudinal and transverse oscillations show only weak dependence on the shear angle of the magnetic structure and the prominence density contrast. The external disturbance perturbs the flux rope exciting oscillations of both polarizations. Their properties are a mixture of those excited by purely horizontal and vertical driving.
description: 15 pages, 10 figures, accepted for publication in Astronomy and Astrophysics
title: Using Real Property Layouts to Study the Foreclosure Contagion Effect in Real Estate with Agent-Based Modeling and Simulation
Creators: name: Vernon-Bido, Daniele
Publisher: name: Old Dominion University Libraries
Year: 2013

description: Foreclosures in the United States increased sharply from 2007 to 2009. These foreclosures had a spillover effect on neighboring property values causing additional foreclosures. This is known as the foreclosure contagion effect.

Recent studies have quantified the discount attributed to foreclosure contagion using equation-based techniques. However, the discount varied between studies and markets. Further studies using agent-based modeling and simulation have demonstrated the relationship between the discounts, the time a foreclosure remains on the market, the prevailing interest rates and the average property values.

This study uses agent-based modeling and simulation (ABMS) to explore the differences that varying neighborhood densities have on the foreclosure contagion effect. Previous research using ABMS has been based on two-dimensional uniform grid layouts. However, property layouts are almost never uniform. This research is aimed at understanding the differences that exist in the foreclosure contagion effect as a result of real property layouts.
title: Bedarfsplanung mit Bauherrenkultur - nachhaltig und zukunftsfähig
Creators: name: Ilmer, Alois
Publisher: name: TU Wien
Year: 2015
Subjects: subject: Bedarfsplanung
subject: Bauherrenkultur
subject: Nachhaltigkeit
subject: nachhaltiges Bauen
subject: Zertifizierung
subject: Lebenszykluskosten
subject: ÖNORM DIN 18205

description: "Ganz am Beginn eines Projektes fallen die weitreichendsten Entscheidungen." Diese Erkenntnis wurde durch Untersuchungen viele Male untermauert. Unabhängig ob allein die finanziellen Auswirkungen oder - wie in der hier angewendeten nachhaltigen Betrachtung von Bauprojekten üblich - umfassend ökologische, ökonomische und soziokulturelle Grundlagen und Ergebnisse studiert werden. In dieser Arbeit mit dem Titel "Bedarfsplanung mit Bauherrenkultur - nachhaltig und zukunftsfähig" wird das oben genannte Statement zum Ausgangspunkt. Nach der Erläuterung der rechtlichen Voraussetzungen und der zur Zeit praktizierten Arbeitsweise beleuchten Interviews mit Personen, die das Bauen an entscheidender Stelle mitgestalten, die aktuelle Situation aus verschiedenen Blickwinkeln. Die Erarbeitung eines neuen Modells trägt dem Umstand Rechnung, dass die zur Zeit angewendete Bedarfsplanung meiner Meinung nach nicht in der Lage ist, ein zukünftiges Projekt ausreichend mit grundlegenden Anforderungen zu unterstützen. Der Bauherr arbeitet mit diesem Modell gemeinsam mit einem Team schon bei einem spürbaren Handlungsbedarf intensiv an den folgenden Dimensionen: quantitative Anforderungen mit Qualitätsbeschreibungen (Stand der Praxis), Visionen und Leitbilder (neue Grundlage), Zeit und ihre Auswirkungen (neue Grundlage) und integriert die Emotionen als wertvollen Informationsträger der Betroffenen (neue Grundlage). Er schafft damit die Voraussetzungen für ein umfassend nachhaltiges Projekt, das seiner Bezeichnung auch gerecht wird. Dieses Projekt ist für alle Beteiligten ein Gewinn.
Finite-size effects and intermittency in a simple aging system
Creators: name: Pitard, Estelle
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the intermittent dynamics and the fluctuations of the dynamic correlation function of a simple aging system. Given its size $L$ and its coherence length $ξ$, the system can be divided into $N$ independent subsystems, where $N=(\frac{L}ξ)^d$, and $d$ is the dimension of space. Each of them is considered as an aging subsystem which evolves according to an activated dynamics between energy levels. We compute analytically the distribution of trapping times for the global system, which can take power-law, stretched-exponential or exponential forms according to the values of $N$ and the regime of times considered. An effective number of subsystems at age $t_w$, $N_{eff}(t_w)$, can be defined, which decreases as $t_w$ increases, as well as an effective coherence length, $ξ(t_w) \sim t_w^{(1-μ)/d}$, where $μ<1$ characterizes the trapping times distribution of a single subsystem. We also compute the probability distribution functions of the time intervals between large decorrelations, which exhibit different power-law behaviours as $t_w$ increases (or $N$ decreases), and which should be accessible experimentally. Finally, we calculate the probability distribution function of the two-time correlator. We show that in a phenomenological approach, where $N$ is replaced by the effective number of subsystems $N_{eff}(t_w)$, the same qualitative behaviour as in experiments and simulations of several glassy systems can be obtained.
description: 15 pages, 6 figures, published version
title: Collaboration in online courses in Slovakia
Creators: name: Pisutova, Katarina
Publisher: name: The Open University
Year: 2012

description: Comprehensive analyses of online and collaborative learning methods in the post-communist countries of Central and Eastern Europe are nearly non-existent. Yet, these nations typically have authoritarian teaching and learning traditions which present unique and significant challenges to the development of these methods, and which are poorly understood at present. This thesis provides a thorough examination of how collaborative activities are used in online courses, and of student and teacher perceptions of these methods, in the Slovak Republic (Slovakia), and postulates that its findings are relevant and valuable for the many newly open societies in the region that are now entering the online teaching world. Research involved case studies of two Slovak higher education institutions, and interviews with administrators and teachers from a number of Slovak educational institutions. Findings can be summarized as follows: • Collaboration is rarely used as a teaching method in Slovakia, particularly in online settings • Students do not expect to be asked to participate in discussions, but when asked they seem to have no problem embracing the method. • Instructors at many Slovak institutions lack the motivation and training to promote and use collaborative methods in their online courses • The few instructors who make the effort to implement some of these methods use mostly asynchronous discussions. Further analysis of data and findings leads to suggestions for improving the use of collaborative methods in online learning on three key levels: the course level, the institutional level, and the national policy level.
title: Didymella pinodella: An Important Pea Root Rot Pathogen in France to Watch Out For?
Creators: name: Šišić, Adnan
name: Baćanović-Šišić, Jelena
name: Gamba, Fernanda M.
name: Finckh, Maria Renate
Publisher: name: Universität Kassel
Year: 2024
Subjects: subject: pea and wheat species mixtures
subject: pea and wheat pathogens
subject: Fusarium
subject: aggressiveness
subject: cultivar resistance
subject: 570
subject: 580
subject: Fusarium
subject: Erbse
subject: Weizen
subject: Pathogener Mikroorganismus
subject: Frankreich
subject: Wurzelfäule
subject: Resistenz

description: Gefördert durch den Publikationsfonds der Universität Kassel
Probing New Physics in Dimension-8 Neutral Gauge Couplings at $e^+e^-$ Colliders
Creators: name: Ellis, John
name: He, Hong-Jian
name: Xiao, Rui-Qing
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Neutral triple gauge couplings (nTGCs) are absent in the standard model effective theory up to dimension-6 operators, but could arise from dimension-8 effective operators. In this work, we study the pure gauge operators of dimension-8 that contribute to nTGCs and are independent of the dimension-8 operator involving the Higgs doublet. We show that the pure gauge operators generate both $ZγZ^*$ and $Zγγ^*$ vertices with rapid energy dependence $\propto E^5$, which can be probed sensitively via the reaction $e^+e^- \to Zγ$. We demonstrate that measuring the nTGCs via the reaction $e^+e^- \to Zγ$ followed by $Z \to q\bar{q}$ decays can probe the new physics scales of dimension-8 pure gauge operators up to the range $(1-5)$TeV at the CEPC, FCC-ee and ILC colliders with $\sqrt{s}=(0.25-1)$TeV, and up to the range $(10-16)$TeV at CLIC with $\sqrt{s}=(3-5)$TeV, assuming in each case an integrated luminosity of 5/ab. We compare these sensitivities with the corresponding probes of the dimension-8 nTGC operators involving Higgs doublets and the dimension-8 fermionic contact operators that contribute to the $e^+e^-Zγ$ vertex.
description: 43pp, 9 Figs (32 plots) and 4 Tables. v4: refined Fig.9 by adding results of 5/ab integrated luminosity. v3: Only minor refinements to match online version in Science China, selected as "Editor's Focus" and "Cover Article"
Koncentráció és vertikális integráció az európai és a hazai baromfiiparban
Creators: name: Szentirmay, András
name: Szentirmay, András
Publisher: name: Unknown
Year: 2003
Subjects: Industrial Organization
Institutional and Behavioral Economics
Livestock Production/Industries

description: A koncentráció és a vertikális integrációk fejlődése lényeges jellemzői az Európai Unió és Magyarország baromfiiparának. E folyamatok eredményeképpen a napjainkban is zajló átalakulások várhatóan felgyorsulnak a hazai baromfiszektorban, és rövid időn belül az Európai Unióban működő termelési szerkezethez hasonló struktúra kialakítása várható. Ezt generálja az ágazat jelenlegi jövedelmi és tőkehelyzete, valamint a vertikális koordináció szükségességének felismerése. A koncentráció és a vertikális integráció európai színvonalát alapul véve valószínűsíthetők azok a strukturális változások, amelyek mentén a hazai baromfiipar elkerülhetetlenül átrendeződik az elkövetkezendő néhány évben. ----------------- Development in the field of concentration and vertical integration is an essential characteristic of poultry industry both in EU and Hungary. In consequence of these processes transformation, which is taking place also at present, is expected to accelerate in the poultry sector of Hungary. It can also be expected that a production structure similar to that of the European Union will come into being in this country within a short time. This process is generated by the present income and capital situation of the sector, and by the recognition of the necessity of vertical co-ordination. Taking the European level of concentration and vertical integration as a basis structural changes can be forecast Hungarian poultry industry will have to undergo inevitably in subsequent years.
Az EU agrárpolitikájának jellemzői a CAP-tól, a CARPE-ig
Creators: name: Kanizsay, Endre
name: Kanizsay, Endre
Publisher: name: Unknown
Year: 2003
Subjects: Agricultural and Food Policy
Public Economics

description: Az EU (EC) történetének, mind közösségi, mind országos relációban, egyik legvitatottabb területe a mezőgazdasági politika kialakítása. Az ágazat nemzetgazdasági szerepe tagállamonként jelentősen eltérő, de minden esetben megállapítható a részesedésnél jóval jelentősebb társadalmi hatás. Vonatkozik ez a csatlakozó államokra, így hazánkra is. ---------------- One of most disputed fields of the history of EU (EC) has always been the shaping of agricultural policy in respect of both the Union and its member states. The role agriculture plays in national economy is different in each member state. Nevertheless it can be stated in every case that its social impact is much greater than its share. This as also true for states going to enter into the European Union, including Hungary.
title: The impact of looming peak oil on world oil price development
Creators: name: Scharner, Werner
Publisher: name: TU Wien
Year: 2015
Subjects: subject: peak oil
subject: oil price
subject: impact factors on oil price
subject: crude oil
subject: supply and demand for oil

description: Forecasting oil prices has been a real challenge in the last decades. The coreobjective of this thesis is to analyze which impact looming peak-oil has on price development. To meet this target historical supply and demand data is being analyzed and interrelated with macroeconomic figures such as population trends and GDP. Trends of available conventional, but also unconventional, reseres and resources are being used to indicate whether peak-oil is forthcoming as predicted by scientists and what influence such negative forecasts had and will hae on oil prices. The major conclusion is: Especially after 2000, oil prices were mainly influenced by virtual demand and not by physical supply and demand. Currently, it is not likely that prices will significantly change due to shortness of supplies in the near future. Due to economic crises there is a moderate economic growth. Moreover, expensive extraction methods balance with a more efficient use of energy but also with regional overcapacities.
Measurement of the B0 -> K2*(1430)0 gamma and B+ -> K2*(1430)+ gamma branching fractions
Creators: name: Aubert, B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We have investigated the exclusive, radiative B meson decays to K2*(1430) in 89* 10^6 BBbar events with the BaBar detector at the PEP-II storage ring. We measure the branching fractions BR(B0 -> K2*(1430)0 gamma) = (1.22 +-0.25 +-0.10)*10^(-5) and BR(B+ -> K2*(1430)+ gamma) = (1.45 +-0.40 +-0.15) * 10^(-5), where the first error is statistical and the second systematic. In addition, we measure the CP-violating asymmetry ACP(B0 -> K2*(1430)0 gamma) = -0.08 +- 0.15 +- 0.01.
description: 4 pages, 4 figures
Rock inhibition for the promotion of spinal cord regeneration
Creators: name: Chan, Carmen
Publisher: name: University of British Columbia
Year: 2010

description: Axonal regeneration within the injured spinal cord is hampered by multiple inhibitory molecules in the glial scar and in the surrounding disrupted myelin. Of these the chondroitin sulfate proteoglycans [i.e chondroitin sulphate proteoglycans] (CSPGs) have an important role in the regeneration failure but its signaling [i.e. signalling] is not fully understood. Therefore, the effects of CSPG on neurite growth were analyzed by growing embryonic chick dorsal root ganglion (DRG) explants on aggrecan (a CSPG of the hyalectan family). Aggrecan aggregate, aggrecan monomer, and hyaluronic acid inhibited neurite growth from nerve growth factor- and neurotrophin-3-responsive DRG neurons. Chondroitinase ABC digestion reversed aggrecan inhibition. ROCK inhibition with Y27632 increased neurite growth on some, although not all of the aggrecan components tested, suggesting that some of them activated the Rho/ROCK pathway. Many of the inhibitory molecules found in the injured spinal cord activate the Rho pathway, providing a strong rationale to target it following spinal cord injuries (SCI). A dorsal column transection model in rats was used to analyze the efficacy of the ROCK inhibitor, Y27632, in stimulating axonal regeneration. Acute treatment with Y27632 stimulated sprouting of corticospinal tract and dorsal column tract axons, and accelerated functional recovery/compensation. However, lower doses of Y27632 appeared to be detrimental, as low dose-treated animals had decreased axonal regrowth and impaired functional recovery. Y27632 treatment caused negative side effects potentially by acting on the non-neuronal cells in the injured spinal cord. In vivo spinal cord tissue and in vitro astrocyte cultures were used to test if ROCK inhibition increased axonal growth inhibition by astrocytes. In vivo, Y27632 treatment enhanced the upregulation of GFAP and neurocan after SCI. In vitro, the ECM derived from Y27632-treated astrocytes contained higher levels of CSPGs, on which neurite growth from cortical neurons was inhibited. The increased expression of inhibitory CSPGs with Y27632 treatment may contribute to the negative side effects observed in the rat model of SCI. Results here demonstrate that more basic science research must be done to determine the range of dosage of Y27632 that is safe for use in treating SCI, and to design methods for cell specific targeting of ROCK inhibition.
A közbirtokosságok szerepe és fejlesztésük lehetőségei Székelyföldön
Creators: name: Bors, Réka
name: Bors, Réka
Publisher: name: Unknown
Year: 2003
Subjects: Land Economics/Use

description: A magyar liberális jogalkotásnak köszönhetően létrejött erdőközbirtokosságok és legelőtársulatok Székelyföldön a XX. század folyamán a kis- és középbirtokosok vagyonbiztonságát, összességükben pedig a székelység gazdasági megerősödését tették lehetővé. Az 1921-es „földreform” azonban megnyirbálta a közbirtokosságokat és az 1948-ban bekövetkezett államosítás megfosztotta a tulajdonuktól a székely gazdákat. Jelenleg a közbirtokosságok az 1/2000-es Földtörvény alapján, részben visszakapták erdőterületüket, melynek ésszerű hasznosítása, a vertikális integráción alapuló új típusú közbirtokossági érdekeket érvényesítő szövetkezetek és egyesületek révén a jövőben Székelyföld gazdasági talpra állását is elősegíthetik. ---------------- Common forests and pastures in Hungary came into being due to liberal legislation. In Székely land, South Eastern Transylvania, they enabled petty farmers and medium landowners to enjoy security of property, and the entire Székely ethnic group to become economically stronger at the beginning of the twentieth century. However, the 1921 “landreform” strongly limited these commonages, and then the 1948 nationalisation fully deprived Székely farmers of their joint property. The 1/2000 Land Act restituted part of the common forests. Their rational utilisation (by co-operatives and associations based on vertical integration and adapting new-type commonage interests) may also contribute to the economic recovery of Székely land in future.
From entropic to energetic barriers in glassy dynamics: The Barrat-Mézard trap model on sparse networks
Creators: name: Tapias, Diego
name: Paprotzki, Eva
name: Sollich, Peter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Trap models describe glassy dynamics as a stochastic process on a network of configurations representing local energy minima. We study within this class the paradigmatic Barrat-Mézard model, which has Glauber transition rates. Our focus is on the effects of the network connectivity, where we go beyond the usual mean field (fully connected) approximation and consider sparse networks, specifically random regular graphs. We obtain the spectral density of relaxation rates of the master operator using the cavity method, revealing very rich behaviour as a function of network connectivity $c$ and temperature $T$. We trace this back to a crossover from initially entropic barriers, resulting from a paucity of downhill directions, to energy barriers that govern the escape from local minima at long times. The insights gained are used to rationalize the relaxation of the energy after a quench from high $T$, as well as the corresponding correlation and persistence functions.
description: Accepted version for publication in "Journal of Statistical Mechanics: Theory and Experiment". 42 pages , 9 figures, 7 appendices