cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
HPC JEEP- HPC job efficiency and energy usage: monitoring and reporting
Creators: name: Basden, Alastair
name: Turner, Andy
Publisher: name: Zenodo
Year: 2022

description: Traditionally, resources on high performance computing (HPC) services have been granted in units of compute time (core-hours, node-hours, etc.) with users not informed, nor paying much attention to their energy use; and services not generally reporting breakdowns of energy use other than for total electricity charges. Without an understanding of how research areas, projects and users use energy and how efficiently they use resources it is difficult to plan future procurements or service strategies towards a net zero goal.
Ringvergleich HF-Spannung 2017/2018 : Vergleichsbericht DKD-V 2-6
Creators: name: Physikalisch-Technische Bundesanstalt, Braunschweig
Publisher: name: Physikalisch-Technische Bundesanstalt (PTB)
Year: 2020
Subjects: DKD-Vergleichsbericht
Ringvergleich
HF-Spannung

description: Zwischen Oktober 2017 und Dezember 2018 wurde ein nationaler Ringvergleich in der Messgröße "HF-Spannung" durchgeführt. Bei diesem Vergleich wurde die HF-DC-Transferdifferenz eines thermischen Sensors bei 8 Frequenzen zwischen 1 MHz und 1 GHz bestimmt. Das Ergebnis zeigte für alle Teilnehmer im Allgemeinen eine gute Übereinstimmung mit den Referenzwerten.
Evolutionary food web model based on body masses gives realistic networks with permanent species turnover
Creators: name: Allhoff, Korinna T.
name: Ritterskamp, Daniel
name: Rall, Björn C.
name: Drossel, Barbara
name: Guill, Christian
Publisher: name: arXiv
Year: 2014
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: The networks of predator-prey interactions in ecological systems are remarkably complex, but nevertheless surprisingly stable in terms of long term persistence of the system as a whole. In order to understand the mechanism driving the complexity and stability of such food webs, we developed an eco-evolutionary model in which new species emerge as modifications of existing ones and dynamic ecological interactions determine which species are viable. The food-web structure thereby emerges from the dynamical interplay between speciation and trophic interactions. The proposed model is less abstract than earlier evolutionary food web models in the sense that all three evolving traits have a clear biological meaning, namely the average body mass of the individuals, the preferred prey body mass, and the width of their potential prey body mass spectrum. We observed networks with a wide range of sizes and structures and high similarity to natural food webs. The model networks exhibit a continuous species turnover, but massive extinction waves that affect more than $50 \%$ of the network are not observed.
Elastic Bending Modulus for Single-Layer Black Phosphorus
Creators: name: Zhang, Hao-Yu
name: Jiang, Jin-Wu
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We derive an analytic formula for the elastic bending modulus of single-layer black phosphorus (SLBP) based on the valence force field model. The obtained elastic bending modulus is 4.8028 eV and 7.9905 eV along the armchair and zigzag directions in the SLBP, respectively. These values are obviously larger than the bending modulus of 1.4 eV in graphene due to the intrinsic finite thickness for SLBP. Our derivation analytically illustrates that the elastic bending modulus of the SLBP is proportional to the square of the intrinsic thickness of the SLBP.
description: analytic approach is applied for the computation of elastic bending modulus
title: Addis Abeba-Firenze, andata e ritorno
Creators: name: Trevisan Semi, Emanuela
Publisher: name: Universität Graz
Year: 2021

description: A photo and three letters: these are the objects this contribution explores. The letters, one
of which was handwritten, were sent to Florentine lawyer Carlo Alberto Viterbo between
15 May and 25 June, 1940, by Menghistu Isaac from Dr Faitlovith’s school in Addis Ababa.
The correspondence, which evokes a spatial connection between Addis Ababa and Florence
at a time marked by frenetic Italian colonial history, can be read as a sort of synecdoche
in the history of Jews of Ethiopia (Beta Israel). The last of the letters was sent to Viterbo
when he was no longer in Florence—he had in fact been arrested a few days previously and
interned as a Zionist Jew in the Urbisaglia camp in Italy, where he remained until July 1,
1941. Anti-Jewish legislation, colonialism, historical and cultural fractures, migration and
individual and collective memories of the past constitute the threads with which the letters
are woven.
description: Keywords:  Ethiopian Jews; Italian Colonialism; Memory; Migrations; Palimpsest
description: Mobile Culture Studies. The Journal, Vol. 7 2021, 171–194
نظريات تطوير المنظمات.pdf
Creators: name: Aboukotta, Mohamed Hassan
Publisher: name: figshare
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: 150302 Business Information Systems
subject: FOS: Economics and business
subject: 150314 Small Business Management
subject: 150308 International Business
subject: 80708 Records and Information Management (excl. Business Records and Information Management)
subject: FOS: Media and communications
subject: 130203 Economics, Business and Management Curriculum and Pedagogy
subject: FOS: Educational sciences
subject: 130205 Humanities and Social Sciences Curriculum and Pedagogy (excl. Economics, Business and Management)
subject: 150399 Business and Management not elsewhere classified
subject: 220102 Business Ethics

description: تتناول المقالة الحالية تاريخ نظريات تطوير المنظمات مقسمة هذا التريخ إلى 19 نظرية عبر ثلاثة أجيال متتابعة.
The Place and the Role of Civic Education in the Republic of Macedonia
Creators: name: Trajkovski, Ilo
Publisher: name: JSSE - Journal of Social Science Education
Year: 2003

description: The paper describes the place and the role of civic education within the social system of the Republic of Macedonia. The main argument is that the implementation of the concept of civic education into the Macedonian educational system has successfully passed the initial and the subsequent introductory phase, and is nowadays facing the challenges of the mainstreaming phase. The situation at each stage is described in terms of the objectives, central issues, organization and teacher training.
description: JSSE - Journal of Social Science Education, 2-2003: Country Reports
Civic Education in Italy: Intended Curriculum and Students' Opportunity to Learn
Creators: name: Losito, Bruno
Publisher: name: JSSE - Journal of Social Science Education
Year: 2003

description: Civic Education is considered in Italy as one of the most important aims of school education as a whole. Nevertheless, available researches show the existence of a gap between intended curriculum and students' experience at school. Official Civic Education curricula, teaching practices and students' participation in the school life are presented with reference to official documents and to research results. Particular attention is paid to the results of the IEA Civic Education study that involved two different probability samples of students of lower and upper secondary school. The study results show that the Italian students of those school levels have an acceptable knowledge of the main principles governing the functioning of democratic societies, but not a sufficient grounding in certain fundamental aspects of the Italian political and institutional system.
description: JSSE - Journal of Social Science Education, 2-2003: Country Reports
Josephson junctions of 2D time-reversal invariant superconductors: signatures of the topological phase
Creators: name: Ruiz, Gabriel F. Rodríguez
name: Rampp, Michael A.
name: Aligia, A. A.
name: Schmalian, Joerg
name: Arrachea, Liliana
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We determine the current-phase relation (CPR) of two-terminal configurations of Josephson junctions containing two-dimensional (2D) time-reversal invariant topological superconductors (TRITOPS), including TRITOPS-TRITOPS, as well as junctions between topological and non-topological superconductors (TRITOPS-S). We focus on long junctions for which several channels intervene in the tunneling coupling through the junction. We present a description of the topological edge modes for different TRITOPS models including $p$-wave pairing and the combination of $s$-wave pairing with spin-orbit coupling. We derive effective low-energy Hamiltonians to describe the Josephson junction, which can be solved analytically to explain the contribution of the edge states to the Josephson current as a function of the phase bias. We find that edge-modes yield singular corrections to the CPR for both junction types. The primary effects occur for the response of the Majorana zero-modes at half-flux quantum phase $ϕ\approx π$ in TRITOPS-TRITOPS junctions and for integer flux quantum phase $ϕ\approx 0$ for TRITOPS-S junctions, respectively. The former effect is particularly strong two-component nematic superconductors. The latter effect leads to a spontaneously broken time-reversal symmetry in the TRITOPS-S junction and to a breakdown of the bulk-boundary correspondence.
Civic Education around the World
Creators: name: Händle, Christa
name: Henkenborg, Peter
Publisher: name: JSSE - Journal of Social Science Education
Year: 2003

description: Young people's distance from politics is seen as a central problem of democratic societies. Compared to the first IEA-study in the era of political mobilization during the early seventies the results for today's young Germans are worse. Regarding political knowledge, the results for young Germans are mediocre; conspicuous and alarming is the unwillingness of German youngsters to participate in school, politics and society. These results can be explained by using data and relations found by the international comparative project Civic Education about the specific meaning of conditions and results of political education in different school systems and societies. This paper discusses several results and questions and shows that one-dimensional explanations are hardly possible in the complex field of political education.
description: JSSE - Journal of Social Science Education, 1-2003: Civic Education
Conditions for High Civic Knowledge and Participation in Norwegian Schools
Creators: name: Mikkelsen, Rolf
Publisher: name: JSSE - Journal of Social Science Education
Year: 2003

description: The Norwegian students in the Civic Education study are doing very well in civic knowledge, skills, attitudes and concepts. Despite this documented democratic awareness the student's score is below international average on interest in politics and conventional participation. On the other hand the 14 year olds carry an important willingness to vote as adults, they have a high level of trust in their government and they want to participate in the school society. The paper discusses the question how these Norwegian findings can be explained, and wheather or not are the school system and school activities are part of the explanation. The paper illustrates the strategies for teaching an learning democracy in Norwegian Schools. The "about-perspective" means to teach the students about democracy und die "through-perspective" means teaching and learning through democracy. Using examples this paper shows, that school is one of the institutions who most explicit prepare young people for their role as citizens, that is as participators in democratic political activity. The comparison between Norwegian 14 year olds and 18 year olds shows improvements closely connected to student's years in school. The about-perspective seems well taken care of by schools, teachers and students. This integrative school-system in connection with the open classroom climate seems to be a condition for attractive democratic attitudes.
description: JSSE - Journal of Social Science Education, 1-2003: Civic Education
Quantum Dynamics of Supergravity on R^3 x S^1
Creators: name: Tong, David
name: Turner, Carl
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the quantum dynamics of N=1 supergravity in four dimensions with a compact spatial circle. Supersymmetry ensures that the perturbative contributions to the Casimir energy on the circle cancel. However, instanton contributions remain. These render supersymmetric compactification on a circle unstable and the background dynamically decompactifies back to four dimensions. The calculation provides a testing ground for some old ideas in Euclidean quantum gravity. In particular, we show that gravitational instantons are associated to a new, infra-red scale which is naturally exponentially suppressed relative to the Planck scale and arises from the logarithmic running of the Gauss-Bonnet term. There are also some interesting technical details, including the non-cancellation of bosonic and fermionic determinants around the background of a self-dual gravitational instanton, despite the existence of supersymmetry.
description: 48 pages. v2: Added small summary to section 4. v3: Typo corrected
The impact of School Education, Family, Cultural Background and Political Attitudes and Experiences in Civic Knowledge
Creators: name: Menezes, Isabel
name: Mendes, Madalena
name: Ferreira, Carla
name: Marques, Georgina
name: Monteiro, Conceiçã
name: Gião, Joana
name: Afonso, Rosa
name: Amaro, Gertrudes
Publisher: name: JSSE - Journal of Social Science Education
Year: 2003

description: The IEA Civic Education Study in Portugal involved the observation of national representative samples of students from grades 8, 9 and 11. Grades 8 and 9 are the terminal years of basic (compulsory) education, and grade 11 is the mid-year of secondary education. Results on civic knowledge reveal a particular scenario that will be explored in this paper: 8 grade students score clearly below the international mean, but both 9 and 11 grade students score above the international mean. The impact of four relevant variables in the literature on political development - education, family cultural background, political interest and experiences, and interpersonal trust - will be analyzed and discussed.
description: JSSE - Journal of Social Science Education, 1-2003: Civic Education
Eigenvalue Dynamics of a Central Wishart Matrix with Application to MIMO Systems
Creators: name: Lopez-Martinez, F. Javier
name: Martos-Naya, Eduardo
name: Paris, Jose F.
name: Goldsmith, Andrea
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We investigate the dynamic behavior of the stationary random process defined by a central complex Wishart (CW) matrix ${\bf{W}}(t)$ as it varies along a certain dimension $t$. We characterize the second-order joint cdf of the largest eigenvalue, and the second-order joint cdf of the smallest eigenvalue of this matrix. We show that both cdfs can be expressed in exact closed-form in terms of a finite number of well-known special functions in the context of communication theory. As a direct application, we investigate the dynamic behavior of the parallel channels associated with multiple-input multiple-output (MIMO) systems in the presence of Rayleigh fading. Studying the complex random matrix that defines the MIMO channel, we characterize the second-order joint cdf of the signal-to-noise ratio (SNR) for the best and worst channels. We use these results to study the rate of change of MIMO parallel channels, using different performance metrics. For a given value of the MIMO channel correlation coefficient, we observe how the SNR associated with the best parallel channel changes slower than the SNR of the worst channel. This different dynamic behavior is much more appreciable when the number of transmit ($N_T$) and receive ($N_R$) antennas is similar. However, as $N_T$ is increased while keeping $N_R$ fixed, we see how the best and worst channels tend to have a similar rate of change.
description: 15 pages, 9 figures and 1 table. This work has been accepted for publication at IEEE Trans. Inf. Theory. Copyright (c) 2014 IEEE. Personal use of this material is permitted. However, permission to use this material for any other purposes must be obtained from the IEEE by sending a request to pubs-permissions@ieee.org
Dynamical phase space from a SO(d,d) matrix model
Creators: name: Chatzistavrakidis, Athanasios
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that a matrix model with SO(d,d) global symmetry is derived from a generalized Yang-Mills theory on the standard Courant algebroid. This model keeps all the positive features of the well-studied type IIB matrix model, and it has many additional welcome properties. We show that it does not only capture the dynamics of spacetime, but it should be associated with the dynamics of phase space. This is supported by a large set of classical solutions of its equations of motion, which corresponds to phase spaces of noncommutative curved manifolds and points to a new mechanism of emergent gravity. The model possesses an additional symmetry that exchanges positions and momenta, in analogy to quantum mechanics. It is argued that the emergence of phase space in the model is an essential feature for the investigation of the precise relation of matrix models to string theory and quantum gravity.
description: 6 pages; clarifying changes and references added; published in the Rapid Communications section of Phys. Rev. D
Valemetostat Tosilate: First Approval
Creators: name: Keam, Susan
Publisher: name: Adis Journals
Year: 2022
Subjects: Medicine

description: Declarations Funding The preparation of this review was not supported by any external funding. Authorship and Conflict of interest During the peer review process the manufacturer of the agent under review was offered an opportunity to comment on the article. Changes resulting from any comments received were made by the authors on the basis of scientific completeness and accuracy. Susan J. Keam is a contracted employee of Adis International Ltd/Springer Nature, and declares no relevant conflicts of interest. All authors contributed to the review and are responsible for the article content. Ethics approval, Consent to participate, Consent to publish, Availability of data and material, Code availability not applicable Additional information about this Adis Drug Review can be found here. Abstract Valemetostat tosilate (valemetostat; EZHARMIA®), a selective dual inhibitor of histone-lysine N-methyltransferases enhancer of zeste homolog 1 and 2 (EZH1/2), is being developed by Daiichi Sankyo Company, Ltd for the treatment of various haematological malignancies and solid tumours, including types of non-Hodgkin lymphomas (NHL). Valemetostat was approved in Japan in September 2022 for the treatment of patients with relapsed or refractory adult T-cell leukaemia/lymphoma (R/R ATL), a subtype of NHL. This article summarizes the milestones in the development of valemetostat leading to this first approval for R/R ATL. © Springer Nature Switzerland AG 2022
MGF Approach to the Analysis of Generalized Two-Ray Fading Models
Creators: name: Rao, Milind
name: Lopez-Martinez, F. Javier
name: Alouini, Mohamed-Slim
name: Goldsmith, Andrea
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We analyze a class of Generalized Two-Ray (GTR) fading channels that consist of two line of sight (LOS) components with random phase plus a diffuse component. We derive a closed form expression for the moment generating function (MGF) of the signal-to-noise ratio (SNR) for this model, which greatly simplifies its analysis. This expression arises from the observation that the GTR fading model can be expressed in terms of a conditional underlying Rician distribution. We illustrate the approach to derive simple expressions for statistics and performance metrics of interest such as the amount of fading, the level crossing rate, the symbol error rate, and the ergodic capacity in GTR fading channels. We also show that the effect of considering a more general distribution for the phase difference between the LOS components has an impact on the average SNR.
description: 14 pages, 8 Figures and 2 Tables. This work has been accepted for publication at IEEE Transactions on Wireless Communications. Copyright (c) 2014 IEEE. Personal use of this material is permitted. However, permission to use this material for any other purposes must be obtained from the IEEE by sending a request to pubs-permissions@ieee.org
Double brane holographic model dual to 2d ICFTs
Creators: name: Baig, Saba Asif
name: Karch, Andreas
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A minimal single-brane holographic model can be used as a dual to 2d conformal interfaces (ICFTs) to calculate the transmission coefficient $\mathcal{T}$ of energy transported across the defect as well as boundary entropy $\log g$, the additional entanglement entropy for some sub-region that encloses the defect. Both $\mathcal{T}$ and $\log g$ are uniquely determined by the tension characterizing the brane. In contrast, in field theory defects typically the transmission coefficient can be dialed from 0 to 1 independently for each allowed value of $\log g$. To address this discrepancy, we look at a double brane (3-region bulk) holographic model. Merger of two single brane interfaces creates genuinely new interfaces which indeed allow a range of accessible transmission coefficients for a fixed value of $\log g$. In particular, the $\mathcal{T}=0$ limit of two completely decoupled BCFTs can be achieved.
description: 23 pages, 6 images; v2: added minor clarifications regarding the allowed tension ranges, and comments on saturating the AANEC bound in those ranges
Hyperfine coupling and spin polarization in the bulk of the topological insulator Bi$_2$Se$_3$
Creators: name: Mukhopadhyay, S.
name: Krämer, S.
name: Mayaffre, H.
name: Legg, H. F.
name: Orlita, M.
name: Berthier, C.
name: Horvatić, M.
name: Martinez, G.
name: Potemski, M.
name: Piot, B. A.
name: Materna, A.
name: Strzelecka, S.
name: Hruban, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Nuclear magnetic resonance (NMR) and transport measurements have been performed at high magnetic fields and low temperatures in a series of $n$-type Bi$_{2}$Se$_{3}$ crystals. In low density samples, a complete spin polarization of the electronic system is achieved, as observed from the saturation of the isotropic component of the $^{209}$Bi NMR shift above a certain magnetic field. The corresponding spin splitting, defined in the phenomenological approach of a 3D electron gas with a large (spin-orbit-induced) effective $g$-factor, scales as expected with the Fermi energy independently determined by simultaneous transport measurements. Both the effective electronic $g$-factor and the "contact" hyperfine coupling constant are precisely determined. The magnitude of this latter reveals a non negligible $s$-character of the electronic wave function at the bottom of the conduction band. Our results show that the bulk electronic spin polarization can be directly probed via NMR and pave the way for future NMR investigations of the electronic states in Bi-based topological insulators.
description: Updated version including the supplemental material section. To be published in Rapid Communication, Phys. Rev. B
Comparative Findings from the IEA Civic Study and Their Impact on the Improvement of Civic Education in Australia
Creators: name: Mellor, Suzanne
Publisher: name: JSSE - Journal of Social Science Education
Year: 2003

description: The IEA Civic Education Study occurred in a context of little formal civics curricula in Australian schools. The paper compares some Australian data with that from England and the USA. Comparative Civic Knowledge data emphasise the finding that students do learn civics in school and that the kind of delivery does affect student learning outcomes. The comparative data on Civic Engagement indicate that more positive civic attitudes about engagement co-exist with greater civic knowledge. They also indicate that formal provision of civic education makes a difference to civic attitudes. Teacher data demonstrated the need for more training in civics, especially in the contested nature of the field. Teachers did not show an appreciation that encouraging decision-making in schools might increase student engagement in democracy more generally. The paper argues that pedagogic and administrative strategies to address decision-making and other civic competencies are crucial to the engagement of students in schools and to their future engagement in the wider society.
description: JSSE - Journal of Social Science Education, 1-2003: Civic Education
Modelling of CFRP-steel double strap joints using bidirectional CFRP sheet
Creators: name: Al-Mosawe, Alaa
name: Hassan, A
name: Al-Mahaidi, Riadh
Publisher: name: Swinburne
Year: 2024

description: CFRP Strengthening of steel structures is still not widely used by structural engineers due to the debonding issues between steel and CFRP and because of lack of design-guidelines availability. Number of research papers focussed on the bond properties between CFRP and steel structures with different parameters. This paper shows a new strengthening system by adding additional layer of bi-directional CFRP sheet to the CFRP-steel double strap joints. The physical testing of this new method has already been investigated by preparing 45 samples using different lengths of bi-directional CFRP sheets. The current study focusses on the modelling of these CFRPsteel joints with an additional layer of bi-directional sheet using non-linear finite element analysis. The results showed good agreement with the actual test results, the joint capacity is increased by up to 47% and this technique showed some delay in the debonding failure.
Dissipationless Multiferroic Magnonics
Creators: name: Chen, Wei
name: Sigrist, Manfred
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose that the magnetoelectric effect in multiferroic insulators with coplanar antiferromagnetic spiral order, such as BiFeO$_{3}$, enables electrically controlled dissipationless magnonics. Applying an oscillating electric field in these materials with frequency as low as household frequency can activate Goldstone modes that manifests fast planar rotations of spins, whose motion is not obstructed by crystalline anisotropy. Combining with spin ejection mechanisms, such a fast planar rotation can deliver electricity at room temperature over a distance of the magnetic domain, which is free from the energy loss due to Gilbert damping.
description: 7 pages, 4 figures, supplementary materials included
The Politics of League Tables
Creators: name: Steiner-Khamsi, Gita
Publisher: name: JSSE - Journal of Social Science Education
Year: 2003

description: The article focuses on the political usages of OECD- and IEA-type studies on student achievement, and suggests that we examine in more detail how policy makers use results from international comparisons to advance fundamental school reform at national level. The author categorizes three types of policy reactions to league tables: (1) scandalization, (2) glorification, and (3) indifference. Drawing from media reports and policy debates that emerged right after the release of the results from TIMSS, PISA, and the Civic Education Study, the author points at the different policy reactions that these OECD and IEA studies have had in various national contexts. In Japan, for example, the release of TIMSS led to a self-affirmation or glorification of Japanese methods in science and mathematics, whereas the release of PISA in Germany triggered self-criticism or scandalization, and strengthened existing demands for a fundamental reform of the German educational system. Most striking is the political indifference that the release of the IEA Civic Education encountered in Germany. German students held the last rank in the international league table on attitudes towards immigrants (Civic Education Study), whereas they scored below OECD-average in reading literacy (PISA). The author provides a few tentative explanations for the following question: why was there such a political spectacle about the reading literacy scores of German students given that German students did far worse with regard to xenophobia?
description: JSSE - Journal of Social Science Education, 1-2003: Civic Education
Editorial: Economic Education and Constructivist Didactics
Creators: name: Fischer, Andreas
Publisher: name: JSSE - Journal of Social Science Education
Year: 2004

description: Against the background of constructivist theories, this article is on the lookout for complex teaching-learning arrangements and participant-activating methods for economic education as well as it investigates didactic models that are part of the didactic discourse since the 1970s. Among other things, the didactic principle of the hands-on approach is being analysed critically. It is emphasized that didactic concepts centre on intervening measures of teachers that understand learning as a process directed from the outside and see contents to be imparted as an objectively given structure. The writer argues for economic didactics as a scientific discipline to examine the different existing approaches and forms to design didactic concepts theories that help in explaining teaching situations in economic classes from a constructivist perspective. In its role as a service provider economic didactics should make recommendations on broadening teacher and learner activities to enable self-responsibility and individuality of the single person.
description: JSSE - Journal of Social Science Education, 2-2004: Constructivism
A comparison of dense region detectors for image search and fine-grained classification
Creators: name: Iscen, Ahmet
name: Tolias, Giorgos
name: Gosselin, Philippe-Henri
name: Jégou, Hervé
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We consider a pipeline for image classification or search based on coding approaches like Bag of Words or Fisher vectors. In this context, the most common approach is to extract the image patches regularly in a dense manner on several scales. This paper proposes and evaluates alternative choices to extract patches densely. Beyond simple strategies derived from regular interest region detectors, we propose approaches based on super-pixels, edges, and a bank of Zernike filters used as detectors. The different approaches are evaluated on recent image retrieval and fine-grain classification benchmarks. Our results show that the regular dense detector is outperformed by other methods in most situations, leading us to improve the state of the art in comparable setups on standard retrieval and fined-grain benchmarks. As a byproduct of our study, we show that existing methods for blob and super-pixel extraction achieve high accuracy if the patches are extracted along the edges and not around the detected regions.
description: Accepted to IEEE Transactions on Image Processing
Generic nonequilibrium steady states in an exclusion process on an inhomogeneous ring
Creators: name: Banerjee, Tirthankar
name: Sarkar, Niladri
name: Basu, Abhik
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a one-dimensional totally asymmetric exclusion process on a ring with extended inhomogeneities, consisting of several segments with different hopping rates. Depending upon the underlying inhomogeneity configurations and for moderate densities, our model displays both localised (LDW) and delocalised (DDW) domain walls and delocalisation transitions of LDWs in the steady states. Our results allow us to construct the possible steady state density profiles for an arbitrary number of segments with unequal hopping rates. We explore the scaling properties of the fluctuations of LDWs and DDWs.
A hydrodynamic slender-body theory for local rotation at zero Reynolds number
Creators: name: Walker, Benjamin J.
name: Ishimoto, Kenta
name: Gaffney, Eamonn A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Slender objects are commonplace in microscale flow problems, from soft deformable sensors to biological filaments such as flagella and cilia. Whilst much research has focussed on the local translational motion of these slender bodies, relatively little attention has been given to local rotation, even though it can be the dominant component of motion. In this study, we explore a classically motivated ansatz for the Stokes flow around a rotating slender body via superposed rotlet singularities, which leads us to pose an alternative ansatz that accounts for both translation and rotation. Through an asymptotic analysis that is supported by numerical examples, we determine the suitability of these flow ansatzes for capturing the fluid velocity at the surface of a slender body, assuming local axisymmetry of the object but allowing the cross-sectional radius to vary with arclength. In addition to formally justifying the presented slender-body ansatzes, this analysis reveals a markedly simple relation between the local angular velocity and the torque exerted on the body, which we term resistive torque theory. Though reminiscent of classical resistive force theories, this local relation is found to be algebraically accurate in the slender-body aspect ratio, even when translation is present, and is valid and required whenever local rotation contributes to the surface velocity at leading asymptotic order.
Continuous Data Assimilation for the 2D Bénard Convection through Velocity Measurements Alone
Creators: name: Farhat, Aseel
name: Jolly, Michael S.
name: Titi, Edriss S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: An algorithm for continuous data assimilation for the two- dimensional Bénard convection problem is introduced and analyzed. It is inspired by the data assimilation algorithm developed for the Navier-Stokes equations, which allows for the implementation of variety of observables: low Fourier modes, nodal values, finite volume averages, and finite elements. The novelty here is that the observed data is obtained for the velocity field alone; i.e. no temperature measurements are needed for this algorithm. We provide conditions on the spatial resolution of the observed data, under the assumption that the observed data is free of noise, which are sufficient to show that the solution of the algorithm approaches, at an exponential rate, the unique exact unknown solution of the Bénard convection problem associated with the observed (finite dimensional projection of) velocity.
Phonon Thermal Hall Conductivity from Scattering with Collective Fluctuations
Creators: name: Mangeolle, Léo
name: Balents, Leon
name: Savary, Lucile
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Because electrons and ions form a coupled system, it is a priori clear that the dynamics of the lattice should reflect symmetry breaking within the electronic degrees of freedom. This has been recently clearly evidenced for the case of time-reversal and mirror symmetry breakings by observations of a large phononic thermal Hall effect in many strongly correlated electronic materials. The mechanism by which time-reversal breaking and chirality is communicated to the lattice is, however, far from evident. In this paper we discuss how this occurs via many-body scattering of phonons by collective modes: a consequence of non-Gaussian correlations of the latter modes. We derive fundamental new results for such skew (i.e. chiral) scattering and the consequent thermal Hall conductivity. From this we also obtain general formulae for these quantities for ordered antiferromagnets. From the latter we obtain the scaling behavior of the phonon thermal Hall effect in clean antiferromagnets. The calculations show several different regimes and give quantitative estimates of similar order to that seen in recent experiments.
description: 14 pages, including 4 pages of appendices, 4 figures. Companion paper: arXiv:2202.10366
Health Management of Swine
Creators: name: Anamika Sharma1* and Komal Chauhan2
Publisher: name: The Science world a Monthly e magazine
Year: 2023

description: Health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity (WHO). Maintaining good health and farm hygiene will not only help in gaining better body weight but also provide satisfactory return to the farmers and safeguarding health of the consumers. Providing clean and hygienic environment to the pigs housed must be the first and foremost priority of the owner of the farm. There should not be any water-logged areas near the farm. Floor hygiene specially floor cleaning and sanitization must be practiced twice daily. At the entry of the farm provision of foot bath is to be provided containing 2% potassium permanganate solution and every person entering the farm should dip their feet in that foot bath. Washing body of the animals with clean water at regular intervals reduces the incidences of infectious diseases and also provide comfort to the pigs.
Learning Tasks for Self-Directed Learning in Economic Classes (in German)
Creators: name: Gerdsmeier, Gerhard
Publisher: name: JSSE - Journal of Social Science Education
Year: 2004

description: This article discusses questions about appropriate task formats and their curricular-substantial construction as well as implications for teacher qualification. Different types of tasks (decision tasks, exploring tasks, analysing tasks, assessing tasks, interpretation tasks, hermeneutic tasks and creative tasks) are being discussed. In the framework of this article it is concluded that decision tasks are dominant in economic classes. These different types of tasks are characterized by different formats. This is to say that a task as a model of reality can be well- so to say "completely-" structured or ill- so to say "partly-" structured. Oftentimes ill-structured tasks enable learners to understand structures during their operating process. On this account, the writer argues for a more open process and more space for higher complexity and self-directed learning. For this purpose teachers have to manage creativity, framing and application problems for a reasonable task conception.
description: JSSE - Journal of Social Science Education, 2-2004: Constructivism
The antifibrotic effects of naringin in a hypochlorous acid (HOCl)-induced mouse model of skin fibrosis
Creators: name: Mohammadi, Mahmoud
name: Kohan, Leila
name: Saeedi, Mohsen
name: Jazi, Marie Saghaeian
name: Mohammadi, Saeed
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Fibrosis is a chronic inflammation caused by the loss of innate compensational mechanisms. Naringin (NR) is a flavonoid with antineoplastic and anti-inflammatory effects. Here, we aimed to investigate the antifibrotic effects of NR and underlying mechanisms in a Hypochlorous acid (HOCl)-induced mouse model of skin fibrosis. A total of 24 six-week-old female BALB/c mice were randomly allocated into five groups: HOCl, Sham, PBS, HOCl + NR and DMSO and selected skin regions were treated for 6 weeks, until sacrifice. The histopathologic and collagenesis of skin resections were analyzed using H&E and PR staining. The mRNA levels of COL1, COL3 and αSMA genes were quantified. Serum samples were also used to evaluate TGF-β levels and LDH activity. HOCl could increase the relative collagen content, while NR administration on HOCl-treated biopsies decreased collagenesis. COL1, COL3 and αSMA mRNA levels were significantly increased among HOCl-treated skin samples, while NR treatment could decrease these mRNA levels of genes to the extent equal to the levels in the Sham group. Similarly, Naringin-treated samples could decrease TGF-β levels. We demonstrated that Naringin could exert protective effects against fibrotic complications of HOCL in skin tissue in vivo, by reducing the collagenesis and decreasing the levels of fibrosis-associated genes.
Jumps and twists in affine Toda field theories
Creators: name: Doikou, Anastasia
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The concept of point-like "jump" defects is investigated in the context of affine Toda field theories. The Hamiltonian formulation is employed for the analysis of the problem. The issue is also addressed when integrable boundary conditions ruled by the classical twisted Yangian are present. In both periodic and boundary cases explicit expressions of conserved quantities as well as the relevant Lax pairs and sewing conditions are extracted. It is also observed that in the case of the twisted Yangian the bulk behavior is not affected by the presence of the boundaries.
description: 19 pages, Latex. A few comments added. Version to appear in NPB. arXiv admin note: text overlap with arXiv:1404.7329
What Would You Decide on? Decision Tasks in Economic Classes at Business Schools – A Didactical Analysis with Regard to Self-Directed Learning (in German)
Creators: name: Goeckede, Britta
Publisher: name: JSSE - Journal of Social Science Education
Year: 2004

description: Presently, self-directed learning is an important demand in the educational and didactical discourse. Implementing tasks in class is a way to involve students actively. This article discusses the question to what extent two selected exemplary tasks used in economic classes enable learners to self-direct their solution-finding-process. The special nature of both tasks only allows solutions in the form of economic decisions, which means that the solution-finding-process is a decision-making-process. This investigation discusses what a complete and ideal decision-making-process proves to be. This knowledge will then provide a basis for evaluating the tasks in terms of to what extent the learners perform this decision-making-process while they are working on it. Finally, the so called "decision tasks" are analyzed on the criteria of complexity and openness to make a statement about the impact of internal and external control. In the framework of this text analysis, we arrive at the conclusion that the tasks taken into consideration allow self-directed processing only in small parts, but an opening seems to be possible while they are being used in class.
description: JSSE - Journal of Social Science Education, 2-2004: Constructivism
Solitons in a one-dimensional Wigner crystal
Creators: name: Pustilnik, M.
name: Matveev, K. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: In one-dimensional quantum systems with strong long-range repulsion particles arrange in a quasi-periodic chain, the Wigner crystal. We demonstrate that besides the familiar phonons, such one-dimensional Wigner crystal supports an additional mode of elementary excitations, which can be identified with solitons in the classical limit. We compute the corresponding excitation spectrum and argue that the solitons have a parametrically small decay rate at low energies. We discuss implications of our results for the behavior of the dynamic structure factor.
Instructive or Constructive Teaching Approaches in the Economic Education?
Creators: name: Dubs, Rolf
Publisher: name: JSSE - Journal of Social Science Education
Year: 2004

description: Even if the polarizing discussion about instructive and constructive teaching approaches is widely overcome, some misapprehensions still seem to distort the discourse. Thereby thesis, like the future of teaching would only lie in self-directed, process-oriented, casuistic and interdisciplinary learning (predominantly constructivist paradigms) and instructed, product-oriented, systematic and discipline-oriented instructive teaching and learning would be replaced, emerge. This absoluteness is challenged in this article. Possibly the trend towards "moderate constructivism" alludes to which one of both approaches will succeed in future. Though hands-on and self-directed learning in complex problem situations plays a central role in constructivist theories, because it opens ranges of options and contributes to a holistic understanding of coherences, this type of learning still requires a certain amount of instructed knowledge. Self-directed learning therefore excludes a completely independent process of content and goal setting by learners in order that education does not get lost in arbitrariness. Here, instruction is not understood as decided tutorial for teaching and learning, but teacher-conducted stimuli that are supposed to assist the formation of significant knowledge and the process of gaining competencies.
description: JSSE - Journal of Social Science Education, 2-2004: Constructivism
Constraints on topological order in Mott Insulators
Creators: name: Zaletel, Michael P.
name: Vishwanath, Ashvin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We point out certain symmetry induced constraints on topological order in Mott Insulators (quantum magnets with an odd number of spin $\tfrac{1}{2}$ per unit cell). We show, for example, that the double semion topological order is incompatible with time reversal and translation symmetry in Mott insulators. This sharpens the Hastings-Oshikawa-Lieb-Schultz-Mattis theorem for 2D quantum magnets, which guarantees that a fully symmetric gapped Mott insulator must be topologically ordered, but is silent on which topological order is permitted. An application of our result is the Kagome lattice quantum antiferromagnet where recent numerical calculations of entanglement entropy indicate a ground state compatible with either toric code or double semion topological order. Our result rules out the latter possibility.
description: 5 pages plus appendices