cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Thermodynamics, contact and density profiles of the repulsive Gaudin-Yang model
Creators: name: Patu, Ovidiu I.
name: Klumper, Andreas
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We address the problem of computing the thermodynamic properties of the repulsive one-dimensional two-component Fermi gas with contact interaction, also known as the Gaudin-Yang model. Using a specific lattice embedding and the quantum transfer matrix we derive an exact system of only two nonlinear integral equations for the thermodynamics of the homogeneous model which is valid for all temperatures and values of the chemical potential, magnetic field and coupling strength. This system allows for an easy and extremely accurate calculation of thermodynamic properties circumventing the difficulties associated with the truncation of the thermodynamic Bethe ansatz system of equations. We present extensive results for the densities, polarization, magnetic susceptibility, specific heat, interaction energy, Tan contact and local correlation function of opposite spins. Our results show that at low and intermediate temperatures the experimentally accessible contact is a non-monotonic function of the coupling strength. As a function of the temperature the contact presents a pronounced local minimum in the Tonks-Girardeau regime which signals an abrupt change of the momentum distribution in a small interval of temperature. The density profiles of the system in the presence of a harmonic trapping potential are computed using the exact solution of the homogeneous model coupled with the local density approximation. We find that at finite temperature the density profile presents a double shell structure (partially polarized center and fully polarized wings) only when the polarization in the center of the trap is above a critical value which is monotonically increasing with temperature.
description: 20 pages, 7 figures, RevTex 4.1
Emergent quasi-one-dimensionality in a kagomé magnet: A simple route to complexity
Creators: name: Gong, Shou-Shu
name: Zhu, Wei
name: Yang, Kun
name: Starykh, Oleg A.
name: Sheng, D. N.
name: Balents, Leon
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the ground state phase diagram of the quantum spin-$1/2$ Heisenberg model on the kagomé lattice with first- ($J_1 < 0$), second- ($J_2 < 0$), and third-neighbor interactions ($J_d > 0$) by means of analytical low-energy field theory and numerical density-matrix renormalization group (DMRG) studies. The results offer a consistent picture of the $J_d$-dominant regime in terms of three sets of spin chains weakly coupled by the ferromagnetic inter-chain interactions $J_{1,2}$. When either $J_1$ or $J_2$ is dominant, the model is found to support one of two cuboctohedral phases, cuboc1 and cuboc2. These cuboc states host non-coplanar long-ranged magnetic order and possess finite scalar spin chirality. However, in the compensated regime $J_1 \simeq J_2$, a valence bond crystal phase emerges between the two cuboc phases. We find excellent agreement between an analytical theory based on coupled spin chains and unbiased DMRG calculations, including at a very detailed level of comparison of the structure of the valence bond crystal state. To our knowledge, this is the first such comprehensive understanding of a highly frustrated two-dimensional (2d) quantum antiferromagnet. We find no evidence of either the one-dimensional (1d) gapless spin liquid or the chiral spin liquids, which were previously suggested by parton mean field theories.
description: 16 pages, 14 figures
Isospin decomposition of $γN \to N^*$ transitions within a dynamical coupled-channels model
Creators: name: Kamano, H.
name: Nakamura, S. X.
name: Lee, T. -S. H.
name: Sato, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: By extending the dynamical coupled-channels analysis performed in our previous work [Phys. Rev. C 88, 035209 (2013)] to include the available data of photoproduction of pi meson off the neutron, the transition amplitudes for the photo-excitation of the neutron to nucleon resonances, gamma n --> N*, at the resonance pole positions are determined. The combined fits to the data for both the proton- and neutron-target reactions also revise our results for the resonance pole positions and the gamma p --> N* transition amplitudes. Our results allow an isospin decomposition of the gamma N --> N* transition amplitudes for the isospin I=1/2 N* resonances, which is necessary for testing hadron structure models and gives crucial inputs for constructing models of neutrino-induced reactions in the nucleon resonance region.
description: 20 pages, 12 figures. Typos, equations, and numerical values in Tables are corrected
title: KLK8 inhibition attenuates Alzheimer’s pathology in mice
Creators: name: Herring, Arne
name: Münster, Yvonne
name: Akkaya, Tamer
name: Moghaddam, Sahar
name: Deinsberger, Katharina
name: Meyer, Jakob
name: Zahel, Julia
name: Sanchez-Mendoza, Eduardo
name: Wang, Yachao
name: Hermann, Dirk
name: Arzberger, Thomas
name: Teuber Hanselmann, Sarah
name: Keyvani, Kathy
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Introduction & Objectives: Memory loss and increased anxiety are clinical hallmarks of Alzheimer’s disease (AD). The serine protease kallikrein-8 (KLK8) is implicated in synaptic plasticity and memory acquisition as well as in anxiety-related behavior. KLK8 mRNA is further known to be up-regulated[for full text, please go to the a.m. URL]
description: Joint-Meeting of the German Society for Neuropathology and Neuroanatomy (DGNN) and the Scandinavian Neuropathological Society (SNS)
Media representations of uncertainty about climate change
Creators: name: Painter, James
Publisher: name: University of Westminster
Year: 2015

description: This commentary first explains why it is important to study media representations of uncertainty around climate change. It then surveys the extensive literature on climate change and the media, and within this, the two bodies of scholarship relevant to media representations of uncertainty: i) ‘uncertainty’ as a dominant frame or discourse in media treatments; and ii) the presence of scepticism, in its various manifestations, in traditional and new media. The commentary then shows how the four submitted works have added to the existing literature: i) they have deepened understanding of the country differences between a wide variety of ‘Anglosphere’ countries and non-‘Anglosphere’ countries. Three of the works stand out for including three of the BRIC countries (Brazil, China and India) who are major emitters and major players in international negotiations; ii) they were the first to apply a taxonomy of scepticism to the content analysis, which gave a more nuanced appreciation of what type of climate scepticism can be found in which part of which newspaper in which country; iii) together they provide very large data sets over a period stretching from 2007 to 2012, which have not been replicated in the academic literature; and iv) one of the studies was the first to compare an uncertainty framing with other dominant frames such as ‘disaster’ and ‘explicit risk’. A critique is then given of the heavily quantitative approach used in the content analysis found in the works. It argues that a combination of a quantitative and a qualitative approach would have supplied more nuanced results. It revisits articles in the UK print media in 2009/10 and applies a different research method. The results suggest that a newspaper’s ideological leaning is an important driver of the treatment of climate science and scientists not just in its opinion pages, but in its news pages too. It concludes by placing this finding and others demonstrated in the submitted works within future priority areas of research identified by other scholars: the global characteristics of climate reporting and the drivers of country differences; the changing nature of sceptical discourse; and the role the media plays in fuelling, or reflecting, the political polarisation around climate change.
title: Vergleich der Primärstabilität einer porösen Revisionspfanne mit einer konventionellen Titanpfanne
Creators: name: Beckmann, Nicholas
name: Jäger, Sebastian
name: Janoszka, Maciej
name: Klotz, Matthias
name: Schwarze, Martin
name: Bitsch, Rudi
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Revisionsendoprothetik
subject: Poröse Implantate
subject: Acetabulum
subject: Hüfte
subject: Biomechanik
subject: 610 Medical sciences; Medicine

description: Fragestellung: Die Anzahl von Wechseloperationen bei künstlichen Hüftgelenken nimmt mit der steigenden Lebenserwartung der Patienten zu. Die Wahl der Operationstechnik zur Behandlung der gelockerten Implantate ist dabei von vielen Faktoren abhängig. Zu diesen gehören der Knochensubstanzverlust[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2016)
title: Longitudinal MRI Assessment of the Lumbar Intervertebral Disc via T2 Mapping at 3 Tesla: Are T2 values predictive of future symptoms?
Creators: name: Stelzeneder, David
name: Raudner, Marcus
name: Kronnerwetter, Claudia
name: Pieber, Karin
name: Windhager, Reinhard
name: Trattnig, Siegfried
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: MRT
subject: Lendenwirbelsäule
subject: 610 Medical sciences; Medicine

description: Objectives: Quantitative T2 relaxation time mapping allows a biochemical assessment of the intervertebral disc (IVD). A healthy disc is characterized by high T2 in the nucleus pulpsus (NP) and low T2 in the annulus fibrosus (AF). In Intervertebral disc degeneration a decrease in NP T2 and increase in[for full text, please go to the a.m. URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2016)
title: Linksventrikuläre Projektilembolie nach akzidentiellem Schrotschuss aus nächster Nähe
Creators: name: Driessen, Arne
name: Tjardes, Thorsten
name: Eikermann, Christian
name: Trojan, Stefan
name: Fröhlich, Matthias
name: Grimaldi, Gina
name: Kosse, Nils
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Schrotschuss
subject: linksventrikuläre Projektilembolie
subject: Bleiintoxikation
subject: Bleiserumwert
subject: chirurgische Extraktion Projektile
subject: 610 Medical sciences; Medicine

description: Fragestellung: Eine 24 jährige Patientin wurde aus nächster Nähe von links ventral im Bereich der oberen Extremität und Thorax durch einen Schrotschuss verletzt. Die initiale Diagnostik ergab zahlreiche im Bereich des linken Oberarmes, der ventralen Thoraxwand und nach intrathorakal[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2016)
title: Resistenzsituation von HCV – Ist eine Testung sinnvoll?
Creators: name: Timm, Jörg
name: Walker, Andreas
name: Lübke, Nadine
name: Knops, Elena
name: Kaiser, Rolf
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Mit der Zulassung von spezifischen Inhibitoren gegen HCV („direct-acting antivirals“, DAA) ergibt sich die Frage, ob die Entwicklung von Resistenzen von klinischer Bedeutung sein wird. Für alle zugelassenen DAAs wurden mittlerweile sogenannte Resistenz-assoziierte Substitutionen (RAS)[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Infektiologie Update 2016; 25. Jahrestagung der Paul-Ehrlich-Gesellschaft für Chemotherapie (PEG)
Observation of pendular butterfly Rydberg molecules
Creators: name: Niederprüm, Thomas
name: Thomas, Oliver
name: Eichert, Tanita
name: Lippe, Carsten
name: Pérez-Ríos, Jesús
name: Greene, Chris H.
name: Ott, Herwig
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Obtaining full control over the internal and external quantum states of molecules is the central goal of ultracold chemistry and allows for the study of coherent molecular dynamics, collisions and tests of fundamental laws of physics. When the molecules additionally have a permanent electric dipole moment, the study of dipolar quantum gases and spin-systems with long-range interactions as well as applications in quantum information processing are possible. Rydberg molecules constitute a class of exotic molecules, which are bound by the interaction between the Rydberg electron and the ground state atom. They exhibit extreme bond lengths of hundreds of Bohr radii and giant permanent dipole moments in the kilo-Debye range. A special type with exceptional properties are the so-called butterfly molecules, whose electron density resembles the shape of a butterfly. Here, we report on the photoassociation of butterfly Rydberg molecules and their orientation in a weak electric field. Starting from a Bose-Einstein condensate of rubidium atoms, we fully control the external degrees of freedom and spectroscopically resolve the rotational structure and the emerging pendular states in an external electric field. This not only allows us to extract the bond length, the dipole moment and the angular momentum of the molecule but also to deterministically create molecules with a tunable bond length and orientation. We anticipate direct applications in quantum chemistry, many-body quantum physics and quantum information processing.
description: 6 pages, 4 figures; Supplementary Material included
Irreconcilable Difference Between Quantum Walks and Adiabatic Quantum Computing
Creators: name: Wong, Thomas G.
name: Meyer, David A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Continuous-time quantum walks and adiabatic quantum evolution are two general techniques for quantum computing, both of which are described by Hamiltonians that govern their evolutions by Schrödinger's equation. In the former, the Hamiltonian is fixed, while in the latter, the Hamiltonian varies with time. As a result, their formulations of Grover's algorithm evolve differently through Hilbert space. We show that this difference is fundamental; they cannot be made to evolve along each other's path without introducing structure more powerful than the standard oracle for unstructured search. For an adiabatic quantum evolution to evolve like the quantum walk search algorithm, it must interpolate between three fixed Hamiltonians, one of which is complex and introduces structure that is stronger than the oracle for unstructured search. Conversely, for a quantum walk to evolve along the path of the adiabatic search algorithm, it must be a chiral quantum walk on a weighted, directed star graph with structure that is also stronger than the oracle for unstructured search. Thus the two techniques, although similar in being described by Hamiltonians that govern their evolution, compute by fundamentally irreconcilable means.
description: 8 pages, 4 figures
My generation: examining the music tastes and commercial opportunities within the new audience of 40-59 year olds in the UK
Creators: name: Jones, Julia
Publisher: name: University of Westminster
Year: 2015

description: This thesis provides an original contribution to the academic discourse regarding music taste. It also offers commercial recommendations relating to the use of rock/pop music in engaging the current cohort of middle class consumers aged 40-59 in the UK. The continuing academic debate regarding music taste has largely revolved around the concepts of habitus, cultural capital, social class and legitimate culture(Bourdieu, 1984) and later contrasting theories regarding the cultural omnivore (Peterson et al 1992). Recent UK research (Bennett et al 2009, Savage & Gayo 2011, Savage 2013) identified ‘music generations’ and provided evidence of a continuing divide between two distinct genres: classical and contemporary (rock/pop). They identified ‘experts’ within the current 40-59 aged middle class cohort as those most likely to be possible omnivores and therefore worthy of further research. This thesis focused on that socio-demographic group. Previous studies employed attitudinal surveys to investigate preferences. This thesis provides an original contribution to the discourse through a new investigation of music taste using a previously unstudied data set – a quantitative analysis of 20 years of official UK music sales data (1993-2012). This analysis was supplemented with additional qualitative data collected during participant observations over a three year period. The analysis of this data supports a generational shift in music taste towards rock pop, particularly visible in the current cohort of 40-59 year olds who grew up post 1960s, where lifelong music taste across all classes appears to have been formed during an era dominated by popular music culture. This thesis did not find support of the omnivore theories. Instead a new ‘legitimate’ rock pop music canon may be developing within this genre, suggesting that the middle classes in particular are expanding the social definition of cultural capital and legitimate taste as their preferred genre receives increasing social acceptance as a legitimate cultural art form. Finally this thesis discusses the immediate commercial opportunities that this lifelong rock/pop taste of the current 40-59 middle class demographic in the UK offers businesses, and how innovation could increase the engagement of that affluent and sizeable audience. The research suggested that this taste for rock pop related to new artists in that genre as well as the original artists of the 1970s and 80s that the generation had grown up with.
Herrmann, Christian (Hrsg.), Wahrheit und Erfahrung: Themenbuch zur Systematischen Theologie
Creators: name: Slenczka, Reinhard
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1823086640
description: Jahrbuch für evangelikale Theologie, V. 21 (2007): Jahrbuch für evangelikale Theologie, Band 21
Lang, Alb.: Die Entfaltung des apologetischen Problems in der Scholastik des Mittelalters
Creators: name: Beumer, Joh.
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 37 Nr. 3 (1962): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 37, Heft 3
A model for information retrieval driven by conceptual spaces
Creators: name: Tanase, Diana
Publisher: name: University of Westminster
Year: 2015

description: A retrieval model describes the transformation of a query into a set of documents. The question is: what drives this transformation? For semantic information retrieval type of models this transformation is driven by the content and structure of the semantic models. In this case, Knowledge Organization Systems (KOSs) are the semantic models that encode the meaning employed for monolingual and cross-language retrieval. The focus of this research is the relationship between these meanings’ representations and their role and potential in augmenting existing retrieval models effectiveness. The proposed approach is unique in explicitly interpreting a semantic reference as a pointer to a concept in the semantic model that activates all its linked neighboring concepts. It is in fact the formalization of the information retrieval model and the integration of knowledge resources from the Linguistic Linked Open Data cloud that is distinctive from other approaches. The preprocessing of the semantic model using Formal Concept Analysis enables the extraction of conceptual spaces (formal contexts)that are based on sub-graphs from the original structure of the semantic model. The types of conceptual spaces built in this case are limited by the KOSs structural relations relevant to retrieval: exact match, broader, narrower, and related. They capture the definitional and relational aspects of the concepts in the semantic model. Also, each formal context is assigned an operational role in the flow of processes of the retrieval system enabling a clear path towards the implementations of monolingual and cross-lingual systems. By following this model’s theoretical description in constructing a retrieval system, evaluation results have shown statistically significant results in both monolingual and bilingual settings when no methods for query expansion were used. The test suite was run on the Cross-Language Evaluation Forum Domain Specific 2004-2006 collection with additional extensions to match the specifics of this model.
An accurate and self-consistent chemical abundance catalogue for the APOGEE/Kepler sample
Creators: name: Hawkins, Keith
name: Masseron, Thomas
name: Jofre, Paula
name: Gilmore, Gerry
name: Elsworth, Yvonne
name: Hekker, Saskia
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. The APOGEE survey has obtained high-resolution infrared spectra of more than 100,000 stars. Deriving chemical abundances patterns of these stars is paramount to piecing together the structure of the Milky Way. While the derived chemical abundances have been shown to be precise for most stars, some calibration problems have been reported, in particular for more metal- poor stars. Aims. In this paper, we aim to (1) re-determine the chemical abundances of the APOGEE+Kepler stellar sample (APOKASC) with an independent procedure, line list and line selection, and high quality surface gravity information from astroseismology, and (2) extend the abundance catalogue by including abundances that are not currently reported in the most recent APOGEE release (DR12). Methods. We fixed the Teff and log g to those determined using spectrophotometric and asteroseismic techniques, respectively. We made use of the Brussels Automatic Stellar Parameter (BACCHUS) code to derive the metallicity and broadening parameters for the APOKASC sample. In addition, we derived differential abundances with respect to Arcturus. Results. We have validated the BACCHUS code on APOGEE data using several well-known stars, and stars from open and globular clusters. We also provide the abundances of C, N, O, Mg, Ca, Si, Ti, S, Al, Na, Ni, Mn, Fe, K, P, Cr, Co, Cu, Rb, Yb and V for every star, line, and show the impact of line selection on the final abundances. These include abundances of five new elements and improved abundances for Si, Ti, S, and V. Conclusions. In this paper, we present an independent analysis of the APOKASC sample and provide abundances of up to 21 elements. This catalogue can be used not only to study chemical abundance patterns of the Galaxy but also to train data driven spectral approaches which can improve the abundance precision in a restricted dataset, but also full APOGEE sample.
description: 17 Pages, 16 Figures, Accepted for publication in A&A
Quasisolitons in self-diffusive excitable systems, or Why asymmetric diffusivity does not violate the Second Law
Creators: name: Biktashev, V. N.
name: Tsyganov, M. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Solitons, defined as nonlinear waves which can reflect from boundaries or transmit through each other, are found in conservative, fully integrable systems. Similar phenomena, dubbed quasi-solitons, have been observed also in dissipative, "excitable" systems, either at finely tuned parameters (near a bifurcation) or in systems with cross-diffusion. Here we demonstrate that quasi-solitons can be robustly observed in excitable systems with excitable kinetics and with self-diffusion only. This includes quasi-solitons of fixed shape (like KdV solitons) or envelope quasi-solitons (like NLS solitons). This can happen in systems with more than two components, and can be explained by effective cross-diffusion, which emerges via adiabatic elimination of a fast but diffusing component. We describe here a reduction procedure can be used for the search of complicated wave regimes in multi-component, stiff systems by studying simplified, soft systems.
description: 11 pages, 2 figures, as accepted to Scientific Reports on 2016/07/07
title: CSR in der Messemarkenführung - Modellansatz zur Integration einer CSR Strategie in die identitätsbasierte Markenführung von Messeunternehmensmarken
Creators: name: Blecker, Viktoria
Publisher: name: Hochschule Hannover
Year: 2023
Subjects: subject: 650 Management

description: Die vorliegende Bachelorarbeit geht der Fragestellung nach, wie eine CSR Strategie in die identitätsbasierte Markenführung von Messeunternehmensmarken integriert werden kann. Dafür wurde insbesondere die Bildung und Gestaltung der Markenidentität betrachtet. Um die Markenidentität einer Messedachmarke und gesellschaftliche Verantwortung zu verbinden und die Kontaktpunkte und Integrationsmöglichkeiten aufzuzeigen, wurden das Modell einer verantwortungsvollen Markenführung von Schmidt 2019 sowie das Gesamtmodell der Messedachmarkenidentität von Jung 2010 verwendet und inhaltlich sowie visuell miteinander verbunden. Das daraus abgeleitete Modell bietet einen Ansatz der Integration von CSR Strategien in die identitätsbasierte Markenführung von Messeunternehmen. Grundlegend ist, dass Merkmale gesellschaftlicher Verantwortung Teil des gesamten Prozesses der Identitätserstellung sind und daher im Kern der Identität ansetzen sollten.
title: Maßgeschneiderte M/XDR-TB Therapien
Creators: name: Lange, Christoph
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Im Jahr 2015 gab es in Deutschland eine relative Zunahme der Tuberkulosefälle im Vergleich zum Vorjahr 2014 um 30%. Obwohl dieser Zuwachs auf den ersten Blick dramatisch aussieht, ist die absolute Zahle der Tuberkulosefälle in Deutschland (ca. 7.000/ Fälle bei ca. 80.000.000[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Infektiologie Update 2016; 25. Jahrestagung der Paul-Ehrlich-Gesellschaft für Chemotherapie (PEG)
Quantum phase transition and destruction of Kondo effect in pressurized SmB6
Creators: name: Zhou, Yazhou
name: Wu, Qi
name: Rosa, Priscila F. S.
name: Yu, Rong
name: Guo, Jing
name: Yi, Wei
name: Zhang, Shan
name: Wang, Zhe
name: Wang, Honghong
name: Cai, Shu
name: Yang, Ke
name: Li, Aiguo
name: Jiang, Zheng
name: Zhang, Suo
name: Wei, Xiangjun
name: Huang, Yuying
name: Yang, Yi-feng
name: Fisk, Zachary
name: Si, Qimao
name: Sun, Liling
name: Zhao, Zhongxian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: SmB6 is a promising candidate material that promises to elucidate the connection between strong correlations and topological electronic states, which is a major challenge in condensed matter physics. The electron correlations are responsible for the development of multiple gaps in SmB6, whose elucidation is sorely needed. Here we do so by studying the evolutions of the gaps and other corresponding behaviors under pressure. Our measurements of the valence, Hall effect and electrical resistivity clearly identify the gap which is associated with the bulk Kondo hybridization and, moreover, uncover a pressure-induced quantum phase transition from the putative topological Kondo insulating state to a Fermi-liquid state at ~4 GPa. We provide the evidences for the transition by a jump of inverse Hall coefficient, a diverging tendency of the electron-electron scattering coefficient and, thereby, a destruction of the Kondo entanglement in the ground state. These effects take place in a mixed-valence background. Our results raise the new prospect for studying topological electronic states in quantum critical materials settings.
description: 18 pages and 3 figures
Applying Lundberg and Halton Theory in Using Scientific Information Database (SID): The Case of Ahvaz Shahid Chamran University Postgraduate Students
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2017

description: This study aimed to investigate postgraduate students’ behavior in using Scientific Information Database (SID) through Lundberg and Halton theory.\nThe research was done using survey and descriptive method. The population included 3491 postgraduate students at Shahid Chamran University in 2014 using Krejcie and Morgan table and stratified random sampling based on the population proportion at different faculties. Finally, 346 postgraduate students were selected as the sample. The results revealed a meaningful correlation between postgraduate students’ use behaviour and targeted use of SID. There was also a meaningful correlation between their use behaviour and the informed selection of SID.\nThe findings indicated a meaningful correlation between postgraduate students’ use behaviour and the competition of SID with other databases. This confirms the strong correlation between the two variables and also simultaneous changes of the two variables, i.e. students’ use behaviour and the competition for the accountability of databases. Moreover, it was found that there was a significant relationship between use behaviour and meeting the information needs of postgraduate students through SID. In addition, use behaviour and value judgments of cultural intentions of SID had a significant correlation. Among the variables, the highest correlation coefficient was between informed selection and user’s behaviour (r = 0.867) and the lowest correlation coefficient was between purposeful behaviour and competition (r = 0.578).
Changing narratives? Shifting discursive conceptualisations of post-conflict peace-building
Creators: name: Randazzo, Elisa
Publisher: name: University of Westminster
Year: 2015

description: This thesis assesses the rationale behind the shifts, ruptures and paradigm changes within the scholarship on peace-building. In particular, the thesis is concerned with examining if, and how, these shifts have significantly altered the manner in which the foundational elements of thinking about peace-building have changed beyond the ‘liberal peace-building’ paradigm. To do so, the thesis engages with the logic of critique that has led to the emergence of different theoretical approaches to peace-building that culminate with the ‘local turn’. The thesis begins by tracing an initial shift towards more invasive forms of peace-building in the late 1990s-early 2000s, before engaging with the emergence of the local turn. The research focuses on the case of Kosovo in order to understand how a lessons-learnt approach facilitated the shift towards more invasive and intrusive forms of peace-building, which can be understood less as a deep reconceptualisation of the manner of conducting peace-building operations and more as a refinement of methods of socio-political engineering from the outside. Furthermore, the case of Kosovo is also central to the local turn, as the rise of local ownership discourses is fundamentally tied to the critiques of the extensive international mission in the territory, and of its by-products, particularly resistance and marginalisation of local agency. Along with an assessment of the theoretical underpinnings of the shift towards post-liberal, relational and non-linear approaches to bottom-up peace-building, the thesis examines the implications of the framing of the ‘everyday’ in order to assess the extent to which these bottom-up approaches have been able to by-pass the problems attributed to the liberal peace approach. By looking at its normative project of change, the thesis argues that despite its critical and radical intentions the local turn retains certain foundational epistemological and ontological elements of modernist and positivist approaches that have so far characterised the very mainstream approaches these critiques claim to transcend.
Comparing and Ranking tourism websites performance based on e-satisfaction, e-trust, e-quality, and e-loyalty: A combined approach of structural equation modeling, fuzzy and analytical hierarchical process
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2017

description: This research aims to rank the relative performance of tourism websites in terms of e-satisfaction, e-trust, e-quality, and e-loyalty variables. To this end, two major Iranian travel websites providing accommodation (Iran Hotel Online) and tour packages (Marcopolo Corporation) were chosen and their performances were evaluated based on the four above variables. This research comprises two independent surveys. The first survey administered to a sample of 155 university professors and website designers examined the relative weights of the study variables in explaining the e-performance of these websites through structural equation modeling (SEM). The results indicate that e-quality, e-loyalty, e-trust, and e-satisfaction have the strongest impact on the e-performance, respectively. The second survey examined relative weights of the e-performance based on the websites’ existing e-customers (two categories of 154 and 187 samples) and also qualitative content analysis of the websites’ characteristics using fuzzy analytical hierarchical process (AHP). The findings served to inform that Marcopolo website obtained stronger weights for all four variables, compared with Iran Hotel Online, indicating its higher performance in all variables. At the end, the weight values from the SEM and AHP surveys were synthesized (0.580 and 0.418 for Marcopolo and Iran Hotel Online, respectively) in order to rank the websites based on their e-performances. According to the findings, Marcopolo website outperforms its counterpart in all four variables. The current paper contributes to the literature by yielding some insights into how to benchmark websites in order to improve their e-performance based on perspectives of both customers and experts.
A Pattern to Evaluation of Motivational Factors Affecting Knowledge Sharing
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2017

description: This study aimed to identify the motivational factors affecting the willingness of employees to share knowledge and examine intrinsic and extrinsic motivational factors and influences on attitudes toward knowledge sharing and explicit and implicit knowledge sharing intention. Planned behavior pattern is used as a theoretical framework. This research was conducted in two phases. First, factors were identified according to the literature review and exploratory interviews. Then the impact of each factor was evaluated in terms of structural equation modeling. This is an empirical research and the research method is descriptive survey. Data was collected using a questionnaire and interview. The study was on the staff working in administrative units of Tehran Municipality and the number of staff at the time of study was 2230. Cluster sampling method and sample size based on population and using Cochran formula of 328 people determined that 35 persons were not held accountable. To determine the reliability of questionnaires, Cronbach’s alpha coefficient was calculated to 0.824 which was found at a high level. Data was analyzed by SPSS and LISREL software. Finally, the proposed pattern was confirmed. The results showed that the intrinsic and extrinsic motivational factors influence on the attitude of employees and the attitude influence on tacit and explicit knowledge sharing intention. Also, extrinsic motivational factors influence on tacit knowledge sharing intention and intrinsic motivational factors influence on explicit knowledge sharing intention. Extrinsic motivational factors influence on explicit knowledge sharing intention and intrinsic motivational factors influence on tacit knowledge sharing intention by the attitude and tacit knowledge sharing intention influence on explicit knowledge sharing intention.
Living with contradictions: re-reading the representation of hybridity in visual art
Creators: name: Mangalanayagam, Nina
Publisher: name: University of Westminster
Year: 2015

description: My practice-based PhD investigates how photographic arts can subvert existing visual stereotypes of otherness by exploring how the concept of hybridity undermines black and white notions of identity. Alongside an autobiographical visual art practice, using my own mixed heritage (Sri Lanka and Denmark/Sweden) I investigate how artists with mixed heritages use their shifting points of identification to explore the dichotomy of black and white notions of identity. Although there are many artists exploring Fanon’s idea of seeing oneself as Other through the eyes of an oppressor, it is harder to find artists using their hybrid position to question their own inherited preconceptions of others. By exposing this in my own practice, I add to a re-reading of the representation of hybridity in photography and video arts. My research includes aspects of postcolonial theory, psychoanalysis and art theory to inform, contextualise and question my own art practice. I place myself in situations within my cultural and familial structure to reflect on my position. Through shifting contexts I expose how I am, as much as anyone else, simultaneously a target and mediator. My artworks reveal inaccurate characterisations of me, the impact of other’s views on me, and my process revising my assumptions about others. My research and practice respond to three areas within postcolonial hybridity: the stereotype, mimicry and the Third Space. Each traces back to Homi Bhabha but is also reflected in current critical debates on identity. Through this work I explore contradictions that arise for people of mixed heritage, opening a space for viewers to reflect on their own narratives and position. Each of us contain different narratives, and sometimes it is through other people’s stories that we can deconstruct our own.
title: Kleine Patienten – große Verantwortung: Intraokulare Entzündung im Kindesalter
Creators: name: Pleyer, Uwe
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Intraokulare Entzündungen sind im Kindesalter eine der häufigeren Ursachen gesetzlicher Blindheit in Europa. Daher kommt der Diagnostik und Behandlung der Uveitis im Kindesalter besondere Bedeutung zu. Der oft asymptomatische Beginn der Entzündung und die dadurch verzögerte Diagnose[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Jahrestagung 2016 der Sächsischen Augenärztlichen Gesellschaft
Optimizing the Aldosterone-to-Renin Ratio Cut-off for Screening Primary Aldosteronism Based on Cardiovascular Risk: A Collaborative Study-Supplemental materials
Creators: name: He, Chunxue
name: Li, Ruolin
name: Yang, Jun
name: Shen, Hang
name: wang, yue
name: Chen, Xiangjun
name: Luo, Wenjin
name: Zeng, Qinglian
name: Ma, Linqiang
name: Song, Ying
name: Cheng, Qingfeng
name: Wang, Zhihong
name: Wu, Feifei
name: Yang, Shumin
name: Li, Qifu
name: Hu, Jinbo
Publisher: name: figshare
Year: 2023
Subjects: Endocrinology

description: The supplemental data of the manuscript: Optimizing the Aldosterone-to-Renin Ratio Cut-off for Screening Primary Aldosteronism Based on Cardiovascular Risk: A Collaborative Study
title: Lohnt sich ein iStent?
Creators: name: Schrecker, Jens
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: In dem vielgestaltigen Gebiet der chirurgischen Glaukomtherapie gewinnen die als MIGS (Minimal-Invasive Glaucoma Surgery) bezeichneten Verfahren zunehmend an Bedeutung. Ihre Vorteile ergeben sich aus dem geringen Operationstrauma, dem hohen Sicherheitsprofil sowie der minimalen postoperativen Wundheilung.[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Jahrestagung 2016 der Sächsischen Augenärztlichen Gesellschaft
Scientific Information Analysis of Chemistry Dissertations Using Thesaurus of Chemistry
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2017

description: : Concept maps of chemistry can be obtained from thesaurus of chemistry. Analysis of information in the field of chemistry is done at graduate level, based on comparing and analyzing chemistry dissertations by using these maps. Therefore, the use of thesaurus for analyzing scientific information is recommended. Major advantage of using this method, is that it is possible to obtain a detailed map of all academic researches across all branches of science. The researches analysis results in chemical science can play a key role in developing strategic research policies, educational programming, linking universities to industries and postgraduate educational programming. This paper will first introduce the concept maps of chemistry. Then, emerging patterns from the concept maps of chemistry will be used to analyze the trend in the academic dissertations in chemistry, using the data collected and stored in our database at Iranian Research Institute for Information Science and Technology (IranDoc) over the past 10 years (1998-2009).
Viscous solution of the triple shock reflection problem
Creators: name: Lau-Chapdelaine, S. She-Ming
name: Radulescu, Matei I.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The reflection of a triple-shock configuration was studied numerically in two dimensions using the Navier-Stokes equations. The flow field was initialized using three shock theory, and the reflection of the triple point on a plane of symmetry was studied. The conditions simulated a stoichiometric methane-oxygen detonation cell at low pressure on time scales preceding ignition, when the gas was assumed to be inert. Viscosity was found to play an important role on some shock reflection mechanisms believed to accelerate reaction rates in detonations when time scales are small. A small wall jet was present in the double Mach reflection and increased in size with Reynolds number, eventually forming a small vortex. Kelvin-Helmholtz instabilities were absent and there was no Mach stem bifurcation at Reynolds numbers corresponding to when the Mach stem had travelled distances on the scale of the induction length. Kelvin-Helmholtz instabilities are found to not likely be a source of rapid reactions in detonations at time scales commensurate with the ignition delay behind the Mach stem.
Categorization of Various Essential Datasets and Methods for Textual Spelling Detection and Normalization
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2017

description: One of the most primary phases of automatic text processing is spelling error detection and grapheme normalization. Storing textual documents faces several problems without passing this phase, which causes a disturbance in retrieving the documents automatically. Therefore, specialists in the fields of natural language processing and computational linguistics usually make an attempt to sample various data through presenting ideal methods and algorithms in order to reach the normalized data. Several researches have been conducted on English and some other languages, which have been followed by a certain amount of researches on Farsi too. Sometimes, these several researches have remained to be a pure study and sometimes they have been released as a product. This paper carries out the categorization of the different methods and essential datasets in these researches and depicts each category individually and the evaluation measurements methods generally. Moreover, it describes the performance of the monolingual Farsi systems and the way they meet the Farsi challenges.
The production and mediatisation of political talk television in the United States, Australia, and the United Kingdom
Creators: name: Stevenson, Neil
Publisher: name: University of Westminster
Year: 2015

description: This thesis is a cross-national study that investigates political talk television. The first and main part looks at political talk show production. By talking to senior political talk producers working in different countries, newsrooms and political talk shows, this study constructs a general framework – involving structural, agency, and ideational factors – which explains how political talk shows are produced, and more importantly, why they appear the way they do. The thesis argues that the traditional divide between structures and agency needs to be abolished to truly understand news production. A typology of talk is constructed – parliamentary talk, participatory talk and advocacy talk – which demonstrates that although the general production framework applies to all shows, different forms of talk are more or less responsive to different production elements. The second part interrogates the content of political talk shows by looking at marketisation and mediatisation. To what extent can marketisation and mediatisation explain political talk content? A cross-national methodology is employed that categorises the three countries according to their marketisation levels. The relationship between marketisation and mediatisation is then examined in a qualitative content analysis of political talk shows. Evidence suggests that American talk is more mediatised than British or Australian talk – it is more interpretive, more likely to view politics as a game, more likely to personalise politics, and more likely to rely on aesthetic aspects – and some weaker evidence shows British talk as slightly less mediatised than Australian talk, in-line with marketisation expectations. However, no relationship has been identified between more or less commercial news institutions and mediatisation of political talk content other than to conclude that advocacy talk is the most mediatised style of talk overall. These results highlight that the antecedent of mediatisation is most evident at the macro level of analysis. However, they also point to a problem with the mediatisation theory at lower levels of analysis: political talk is at least partly a mediatised format, but the drivers of this mediatisation do not relate simplistically to more or less marketisation because institutional marketisation does not relate to mediatisation of content, and therefore, the mediatisation of political talk shows might very well relate to wider cultural and political factors.
Eigenstate thermalization in the two-dimensional transverse field Ising model
Creators: name: Mondaini, Rubem
name: Fratus, Keith R.
name: Srednicki, Mark
name: Rigol, Marcos
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the onset of eigenstate thermalization in the two-dimensional transverse field Ising model (2D-TFIM) in the square lattice. We consider two non-equivalent Hamiltonians: the ferromagnetic 2D-TFIM and the antiferromagnetic 2D-TFIM in the presence of a uniform longitudinal field. We use full exact diagonalization to examine the behavior of quantum chaos indicators and of the diagonal matrix elements of operators of interest in the eigenstates of the Hamiltonian. A finite size scaling analysis reveals that quantum chaos and eigenstate thermalization occur in those systems whenever the fields are nonvanishing and not too large.
description: 10 pages, 10 figures, as published
Hediger, H.: Beobachtung zur Tierpsychologie im Zoo und Zirkus
Creators: name: Haas, Ad.
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 37 Nr. 3 (1962): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 37, Heft 3