cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Construction of efficient Schmidt number witnesses for high-dimensional quantum states
Creators: name: Wyderka, Nikolai
name: Chesi, Giovanni
name: Kampermann, Hermann
name: Macchiavello, Chiara
name: Bruß, Dagmar
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 81P42

description: Recent progress in quantum optics has led to setups that are able to prepare high-dimensional quantum states for quantum information processing tasks. As such, it is of importance to benchmark the states generated by these setups in terms of their quantum mechanical properties, such as their Schmidt numbers, i.e., the number of entangled degrees of freedom. In this paper, we develop an iterative algorithm that finds Schmidt number witnesses tailored to the measurements available in specific experimental setups. We then apply the algorithm to find a witness that requires the measurement of a number of density matrix elements that scales linearly with the local dimension of the system. As a concrete example, we apply our construction method to an implementation with photonic temporal modes.
description: 7 pages, 4 figures
CASTE, CLASS AND SOCIAL MOBILITY. A CASE STUDY IN NORTH INDIA 1958-2015
Creators: name: BOLAZZI, FLORIANE
Publisher: name: Universit� degli Studi di Milano
Year: 2020

description: This thesis analyses the nexus between caste, class and social mobility in rural India over the last half-century of profound transformations. The increase of demographic pressure on land has reduced agriculture to a subsidiary source of livelihood for the rural population. The transition from farming to informal and irregular forms of labour which require the working population to commute to small and medium towns, have become the predominant patterns of occupational transition in rural India. This thesis investigates the nature and magnitude of these changes and their implications for the reconfiguration of the social structures - caste hierarchy and class stratification - and aims at verifying whether the caste membership continues to prevail as a factor of social stratification. Using unique data at the individual level on the full population of Palanpur, a village in Uttar Pradesh, surveyed seven times from 1958 to 2015, we provide a longitudinal analysis of the trends, the patterns and the determinants of the social mobility of three generations of individuals. We combine the statistical and econometric analysis of the social mobility with a qualitative analysis of more than a hundred interviews carried out during six-months in-depth fieldwork. We find evidence of the opportunities for social mobility to increase but prevalently downward toward manual workers? class. The advantage of the upper castes to access high salariat positions persists over time, however, with the modernization, the educational attainment plays an equalising role on the chances of upward mobility irrespective of the caste and the class of origin. Moreover, we find that the caste disadvantage for upward mobility from low to middle and top-class decreased over time for some of the castes at the bottom of the hierarchy. While much social stratification research has been and still is carried out in Western countries, this thesis is an original contribution to the emerging literature concerning social stratification and mobility in developing countries.
Integration of Coupling Dirac Structures
Creators: name: Brahic, Olivier
name: Fernandes, Rui Loja
Publisher: name: arXiv
Year: 2014
Subjects: subject: Symplectic Geometry (math.SG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53D17, 58H05

description: Coupling Dirac structures are Dirac structures defined on the total space of a fibration, generalizing hamiltonian fibrations from symplectic geometry, where one replaces the symplectic structure on the fibers by a Poisson structure. We study the associated Poisson gauge theory, in order to describe the presymplectic groupoid integrating coupling Dirac structures. We find the obstructions to integrability and we give explicit geometric descriptions of the integration.
description: 48 pages, Final version accepted for publication in Pacific Journal of Mathematics
title: Bayonets and Bananas: U.S. Imperialism and the Latin American Fruit Trade in Dos Passos’s U.S.A. Trilogy
Creators: name: Tydal, Fredrik
Publisher: name: Universität Graz
Year: 2022

description: This article explores the theme of U.S. imperialism in Latin America built into
the U.S.A. trilogy. It proceeds from the observation that while the focus of Dos
Passos’s work is on the United States, his approach is also transnational, taking
in the emerging superpower’s relationship to other parts of the world in its
thematic compass as well. Specifically, I argue that contained within the trilogy
is a story of U.S. hegemony and exploitation in Latin America at the hands of
strong political and economic forces.
With the extended depiction of the Mexican Revolution in The 42nd Parallel as
my initial focus, I show how Dos Passos, through his account of successive U.S.
administrations’ involvement in the conflict, sketches out an interventionist
modus operandi that continues into the 1920s. Throughout, my analyses often
depart from the Newsreel sections, whose contents repeatedly invoke U.S.
political and economic involvement in Latin American affairs, revealed through
their interaction with not only Dos Passos’s other narrative modes, but also with
the historical record itself. In the second part, I turn to the Latin American fruit
trade, which constitutes a sub-topic that is referenced in each volume of the
trilogy. Departing from the appearance of the novelty song “Yes! We Have No
Bananas” in one of the final Newsreel sections, I argue that its seeming triviality
belies a more sinister function, namely that of blocking out the Colombian
Banana Massacre of 1928 from Dos Passos’s narrative.
description: Keywords: John Dos Passos, Modernism, Banana Massacre, Mexican Revolution, The 42nd
Parallel, U.S.A. Trilogy.
description: AmLit: Jg. 2.2 (2022)
The Relationship between Solar Coronal X-Ray Brightness and Active Region Magnetic Fields: A Study Using High Resolution Hinode Observations
Creators: name: Hazra, Soumitra
name: Nandy, Dibyendu
name: Ravindra, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: By using high-resolution observations of nearly co-temporal and co-spatial Solar Optical Telescope spectropolarimeter and X-Ray Telescope coronal X-ray data onboard Hinode, we revisit the problematic relationship between global magnetic quantities and coronal X-ray brightness. Co-aligned vector magnetogram and X-ray data were used for this study. The total X-ray brightness over active regions is well correlated with integrated magnetic quantities such as the total unsigned magnetic flux, the total unsigned vertical current, and the area-integrated square of the vertical and horizontal magnetic fields. On accounting for the inter-dependence of the magnetic quantities, we inferred that the total magnetic flux is the primary determinant of the observed integrated X-ray brightness. Our observations indicate that a stronger coronal X-ray flux is not related to a higher non-potentiality of active-region magnetic fields. The data even suggest a slightly negative correlation between X-ray brightness and a proxy of active-region non-potentiality. Although there are small numerical differences in the established correlations, the main conclusions are qualitatively consistent over two different X-ray filters, the Al-poly and Ti-poly filters, which confirms the strength of our conclusions and validate and extend earlier studies that used low-resolution data. We discuss the implications of our results and the constraints they set on theories of solar coronal heating.
description: 17 pages, 7 figures, submitted
Conformal model for gravitational waves and dark matter: A status update
Creators: name: Kierkla, Maciej
name: Karam, Alexandros
name: Swiezewska, Bogumila
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present an updated analysis of the first-order phase transition associated with symmetry breaking in the early Universe in a classically scale-invariant model extended with a new SU(2) gauge group. Including recent developments in understanding supercooled phase transitions, we compute all of its characteristics and significantly constrain the parameter space. We then predict gravitational wave spectra generated during this phase transition and by computing the signal-to-noise ratio we conclude that this model is well testable (and falsifiable) with LISA. We also provide predictions for the relic dark matter abundance. It is consistent with observations in a rather narrow part of the parameter space, since we exclude the so-called supercool dark matter scenario based on an improved description of percolation and reheating after the phase transition as well as inclusion of the running of couplings. Finally, we devote attention to renormalisation-scale dependence of the results. Even though our main results are obtained with the use of renormalisation-group improved effective potential, we also perform a fixed-scale analysis which proves that the dependence on the scale is not only qualitative but also quantitative.
title: L'investissement de l'écriture réflexive en formation à l'enseignement
title: L'investissement de l'écriture réflexive en formation à l'enseignement
titleType: AlternativeTitle
Creators: name: Arnold, Debora
Publisher: name: Unknown
Year: 0
Subjects: subject: écriture réflexive
subject: pratique réflexive
subject: posture clinique
subject: secondarisation
subject: guidage
subject: dossier de formation

description: Dans ce travail, nous explorons la posture réflexive et le processus d’écriture réflexive chez les étudiants en formation à l’enseignement. Pour ce faire, nous proposons de modéliser la pratique réflexive grâce à un schéma tridimensionnel et l’écriture réflexive comme étant une représentation de cette dernière à un instant précis. Dans notre modèle, nous proposons d’explorer la pratique réflexive sous trois axes de réflexions : l’axe des interactions sociales, l’axe opposant la théorie à la pratique ainsi que l’axe action-réflexion. Nous expliquons ensuite que la secondarisation des concepts et la création de liens participent à étoffer la réflexion menée. Les bienfaits d’un tel processus étant mis en avant dans de nombreux articles, nous nous interrogeons sur comment les étudiants investissent une telle écriture dans leur propre pratique. C’est au travers d’analyses de pièces-notes d’étudiants en formation pour l’enseignement primaire que nous menons notre recherche. Ces textes sont tirés des dossiers de formation que ces derniers constituent dans le cadre de leurs études. Les futurs enseignants sont sollicités à se positionner en tant que professionnels remettant sans cesse leur pratique en question. Ainsi, ils peuvent réfléchir à leur pratique et l’enrichir grâce à divers apports. Au travers des textes analysés, portant sur la pratique réflexive elle-même, nous avons pu constater la difficulté qu’ont les étudiants à mettre en place ce processus d’écriture au cours de leur formation. Parvenir à une analyse de sa propre pratique semble être difficile à atteindre, en particulier sans soutien. C’est pourquoi le guidage de formateurs, les échanges entre paires, etc., semblent constituer un ensemble de conditions permettant une écriture réflexive. Les résultats constatés sont les suivants : si les étudiants investissent l’écriture réflexive au sein de leurs productions écrites, quelques limitations sont constatées. Les réflexions concernant l’interaction sociale et l’opposition entre pratique et théorie sont peu explorées. Peu d’indices de secondarisation des concepts théoriques ont été relevés. Toutefois, un processus de questionnement a bien été constaté dans les textes sélectionnés. Notre investigation pourrait se prolonger et s’élargir visà- vis de ce processus d’écriture réflexive. Qu’apporte cette écriture, dans la pratique, aux étudiants vis-à-vis des apprentissages et des compétences à acquérir ? Qu’en est-il des étudiants formés à l’enseignement secondaire ? Et des enseignants expérimentés ? Ces questions restent ouvertes.
Human Rights Education - As a Tool for the Reform of the Police
Creators: name: Sganga, Cristina
Publisher: name: JSSE - Journal of Social Science Education
Year: 2006

description: This article identifies the basic challenges faced by human rights activists when engaging police reform. It pays particular attention to the role of human rights education in such processes; moreover it explores what police and policing are meant to be and look like in a society where pluralism, human rights and the rule of law prevail. Lastly, it outlines the type of training required by a modern-democratic model of police functions.
description: JSSE - Journal of Social Science Education, 1-2006: International Perspectives of Human Rights Education (HRE)
Human Rights Education and Curricular Reform in South Africa
Creators: name: Keet, Andre
name: Carrim, Nazir
Publisher: name: JSSE - Journal of Social Science Education
Year: 2006

description: In this paper we chronicle the development of Human Rights Education (HRE) in South Africa within contemporary structures and processes of curricular reform in the country. We argue that human rights have been constituted as a discursive regime within education that traverses all education policy texts: laws, white papers, guidelines, recommendations and regulations. As such it has found a distinct expression in the new schools' curricula for General Education and Training (GET) and Further Education and Training (FET). We explore the history, processes and structures related to the infusion of human rights into the curriculum in two ways. First, the codification of HRE in the curricula is a product of a continuity and discontinuity with the anti-apartheid struggle for social justice and resistance to apartheid education. Second, the centrality of HRE in the curricula in South Africa is driven by a compliance-approach aimed at meeting an array of international obligations as far as HRE is concerned. In this compliance with global directives HRE in educational policy texts become political symbolic articulations that derive its 'logic' in large measure from the human rights language that is constructed within the systems of the United Nations.
description: JSSE - Journal of Social Science Education, 1-2006: International Perspectives of Human Rights Education (HRE)
Nickel-Titanium double perovskite: A three-dimensional spin-1 Heisenberg antiferromagnet
Creators: name: Karolak, Michael
name: Edelmann, Martin
name: Sangiovanni, Giorgio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The double perovskite ${\rm La}_2{\rm NiTiO}_6$ is identified as a three-dimensional $S=1$ quantum magnet. By means of Density Functional Theory we demonstrate that this material is a high-spin $d$-electron system deep in the Heisenberg limit and establish that its paramagnetic Mott phase persists down to low temperatures ($T_{\rm N}$=25K) not because of frustration effects but rather for the extreme strong coupling physics. Our many-body calculations on an $ab$ $initio$-derived multi-orbital basis predict indeed a kinetic energy gain when entering the magnetically ordered phase. ${\rm La}_2{\rm NiTiO}_6$ emerges thus as a paradigmatic realization of a spin-triplet Mott insulator. Its peculiar properties may turn out to be instrumental in the ongoing chase after correlated topological states of matter.
description: 7 pages, 4 figs, 1 table
title: John Dos Passos and George Orwell: Intersecting Lives, Parallel Politics and Writing
Creators: name: Dos Passos Coggin, John
Publisher: name: Universität Graz
Year: 2022

description: Today, vast space separates the political and literary legacies of John Dos
Passos and George Orwell. Orwell dominates American culture, transcending
partisan political classification as a champion of human rights and antitotalitarianism,
filling summer reading lists in K-12 schools, and shaping political
speech from the White House to city council. Dos Passos, who occupied the
first rank of American letters in the 1930s, has fallen into obscurity in the United
States, categorized as an ideologue man of the Left or the Right, or a rusted
literary naturalist. Critics’ narrow political and literary strictures have trimmed
his legacy to bits.
Dos Passos and Orwell, however, share much in common: Outsider youths at
elite schools, horror at empire, brave defenses of Republican Spain, profound
appreciation for political revolution’s violent ends, distaste for political
orthodoxy, and lifelong commitment to individual rights. They met briefly in
Spain and Dos Passos remembered it to his death. Dos Passos saw in Orwell
a rare honest man in an age of political betrayal, and it is likely Orwell saw the
same in Dos Passos.
description: Keywords: John Dos Passos, George Orwell, Communism, Ernest Hemingway, José Robles,
Spanish Civil War.
description: AmLit: 2.2 (2022)
Human Rights Education as Part of the Peace Process in Northern Ireland
Creators: name: Niens, Ulrike
name: Reilly, Jackie
name: Smith, Alan
Publisher: name: JSSE - Journal of Social Science Education
Year: 2006

description: In a society emerging from decades of political conflict, the role of human rights education in Northern Ireland is of particular importance as a tool to preventing violent conflict and to promoting a culture of peace. More generally, a rights-based approach to education might refer to three dimensions; access to education, educational content and educational processes. This article aims to explore the effectiveness of a specific human rights education project that has been piloted in Northern Ireland's post-primary schools as an example of a project that addresses educational content and processes in a flexible manner. Conclusions are drawn relating to factors facilitating the successful development of a rights-based approach to education and of human rights education projects.
description: JSSE - Journal of Social Science Education, 1-2006: International Perspectives of Human Rights Education (HRE)
Creative Tensions and the Legitimacy of Human Rights Education - A Discussion on Moral, Legal and Human Rights Education in China
Creators: name: Oud, Malin
Publisher: name: JSSE - Journal of Social Science Education
Year: 2006

description: This paper is a discussion of human rights education in China. Three major channels for dissemination of legal knowledge and shaping of values are examined - moral education, formal legal education and informal public legal education - against the background of the UN definition of human rights education and in relation to different approaches to human rights education discussed in the first section of the article.
description: JSSE - Journal of Social Science Education, 1-2006: International Perspectives of Human Rights Education (HRE)
Das Wolfratshausener Becken: seine glaziale Anlage und Übertiefung
Creators: name: Jerz, Hermann
Publisher: name: Geozon Science Media
Year: 1979

description: Am Beispiel des Wolfratshausener Beckens südlich von München wird die glaziale Ausformung und Übertiefung eines Gletscherbeckens im Verlauf der drei letzten Vorlandvergletscherungen aufgezeigt. Die in den geologischen Profilen dargestellten Verhältnisse stützen sich auf zahlreiche Ergebnisse von Bohrungen der letzten Jahre. Die Anlage des Wolfratshausener Beckens wird mit einer starken Glazialerosion in der Mindel-Eiszeit in Zusammenhang gebracht. Seit damals dürften die wesentlichen Linien der heutigen Beckenumrandung festgelegt sein. Während der Riß-Eiszeit war dann insbesondere eine Tiefenerosion wirksam. Eine kräftigere Seitenerosion wurde vermutlich durch die Deckenschotter verhindert. Die geringste Glazialerosion ist für die Würm-Eiszeit festzustellen. Denn selbst in den zentralen Bereichen des Wolfratshausener Beckens sind noch mächtige präwürmzeitliche Ablagerungen (Moränen und Seetone) erhalten. Es wird vermutet, daß hierfür die kürzere Zeitdauer der letzten Vergletscherung einen maßgeblichen Grund darstellt.
description: research
title: Réussite ou échec scolaire : une influence sur la posture d'apprentissage des élèves?
title: Réussite ou échec scolaire : une influence sur la posture d'apprentissage des élèves?
titleType: AlternativeTitle
Creators: name: Maddage, Rajika
name: Jonquet, Leslie
Publisher: name: Unknown
Year: 0
Subjects: subject: Posture élèves
subject: Posture enseignante
subject: Rapport au savoir
subject: Réussite scolaire
subject: Echec scolaire
subject: Apprentissage

description: Selon Bautier, Charlot et Rochex, (2000), la réussite ou l’échec scolaire d’un élève est intimement lié à son rapport au savoir, c’est-à-dire à la relation de sens et de valeur qu’il confère à celui-ci. L’enseignant·e joue donc un rôle primordial et doit faire évoluer le rapport au savoir de l’élève pour l’intégrer dans une logique d’apprentissage et de réussite scolaire. Or, l’interaction entre l’élève et l’enseignant·e joue un rôle très important dans la réussite scolaire. L’élève adopte donc, selon Bucheton (2009), différentes postures d’apprentissage, plus ou moins porteurs de réussite, en mobilisant un ensemble de gestes, de savoirs et d’intérêts. Notre mémoire vise à étudier et analyser ces différents changements de postures selon la réussite ou l’échec scolaire des élèves. Le but étant d’analyser ces variations et si possible de mettre en évidence des postures prédominantes. A travers notre étude, nous avons constaté que les élèves en réussite adoptent préférentiellement une posture scolaire suivie d’une posture ludique-créative et en dernière position une posture réflexive. La prédominance de la posture scolaire nous indique que les élèves en réussite entrent dans une logique de cheminement en lien avec un rapport utilitariste. Dans la pratique, il y a donc un décalage entre la posture d’apprentissage visée par les enseignants et la représentation que se font les élèves de la réussite scolaire. Les élèves en échec adoptent préférentiellement une posture non scolaire, englobant à la fois une posture ludique-créative et de refus. Néanmoins, nous avons constaté que les élèves en échec adoptaient également une posture réflexive supérieure à celle des élèves en réussite. L’échec scolaire n’est donc pas uniquement attribué à une logique de cheminement. L’élève en échec essaie tout de même de rentrer dans une démarche réflexive pour mieux cibler et comprendre les causes de son échec.
title: Why do dictators give economic power to their militaries?
Creators: name: Ward, Robert
Year: 2022

description: Diese Dissertation untersucht die Ursachen und Wirkungen von wirtschaftlicher Macht in den Händen des Militärs in einer vergleichenden Perspektive. Sie entwickelt drei miteinander verbundene Argumente über wirtschaftliche Macht in den Händen des Militärs unter Verwendung einer vergleichenden Analyse des nordkoreanischen Beispiels und einer nationalen und einer sub-nationalen Fallstudie einer nordkoreanischen Militäreinheit. Erstens entwickelt sie eine vergleichende historische Analyse Nordkoreas mit anderen staatssozialistischen Ländern (China, Kuba und Vietnam), in denen wirtschaftliche Macht in den Händen des Militärs und militärische Unternehmen aufgekommen sind. Es wird gezeigt, dass wirtschaftliche Macht des Militärs dann entsteht, wenn dem Staat die Kapazität fehlt (vor allem die fiskale Kapazität), um die strategischen Ziele der Führung durchzusetzen. Aus diesem Grund werden dem Militär Ressourcen, Rechte und Eigentum übergeben, um ihm die teilweise Selbstfinanzierung zu ermöglichen. Das steigert die Macht des Militärs und macht es unabhängiger vom Staat. Dadurch wird die zivile Führung dazu angehalten, die oberste Führung strikt unter ihrer Kontrolle zu halten und ausdifferenzierte Institutionen politischer Kontrolle zu entwickeln. Das löst jedoch nicht andere aus dem Bedarf nach Eigenfinanzierung des Militärs erwachsende Probleme wie Korruption und Aneignung. Zweitens wird anhand einer nationalen und subnationalen Fallstudie von Einheit 235 der Koreanischen Volksarmee gezeigt, dass und wie das Problem der Kontrolle über das Militär in wichtigen Aspekten durch wirtschaftliche Macht in den Händen des Militärs verstärkt wird. Unter Verwendung von Konzepten aus der Korruptionsforschung in Transformationsökonomien und der Literatur zu Kontrolleinrichtungen in der zivilen und militärischen Beziehung wird ein neues Argument zum Thema der staatlichen Haltung zu Korruption und der (fehlenden) Kapazität des Staates zu ihrer Bekämpfung innerhalb des Militärs entwickelt. Die nordkoreanischen zivilen Behörden zeigen durchaus eine Fähigkeit zur Aufdeckung von Korruption, aber sie verfügen aufgrund von Personalmangel und einer Unfähigkeit zur Schaffung von Anreizsystemen und Steigerung der Opportunitätskosten von Korruption nur über eingeschränkte Möglichkeiten zur Bestrafung von entsprechenden Vergehen. Drittens wird argumentiert, dass die Ausbreitung von illegalen wirtschaftlichen Aktivitäten im Militär sowohl negative als auch positive soziale Effekte hat. Unter Verwendung von Theorien aus dem Studium des Unternehmertums sowie der diesem zugrunde liegenden sozialen Strukturen wird gezeigt, wie Offiziere des Militärs auf kulturelle und relationale Verbindungen mit dem zivilen Teil der Gesellschaft bauen können. Diese unterstützen und berauben zivile Akteure gleichermaßen und führen zu einer Art von „zivil-militärischer Konvergenz“, in deren Verlauf das Militär im Verlaufe des Interaktionsprozesses zunehmend in die Kultur der zivilen Gesellschaft assimiliert wird.
Dialogue and Dignity - Linking Human Rights Education with Paulo Freire's "Education for Liberation"
Creators: name: Lohrenscheit, Claudia
Publisher: name: JSSE - Journal of Social Science Education
Year: 2006

description: Viewed in the context of the United Nations Decade for Human Rights Education (1995-2004), it is clear that Paulo Freire's "Education for Liberation" and Human Rights Education (as it develops), have two core concepts of participation and empowerment in common. Participation is seen as the active involvement of individuals and groups in social, economic or political activities, while empowerment is viewed as the strengthening of individuals and groups and their liberation from oppressive conditions which crush human dignity. This article examines the development of Human Rights Education (HRE) which grew from UN International Human Rights Conventions, and which resulted in a common understanding of and basis for HRE. Not many authors (e.g. in Europe or the United States of America) currently involved in the development of human rights education rely on Paulo Freire's work as their main source of inspiration. In Latin America, however, the work of Paulo Freire is well-established and is referred to in current education discourse and practice. This article endeavours to link some of the core concepts of Freire's work to human rights education with a view to understanding education as a process of liberation involving dignity, dialogue and dissent. To this end, Paulo Freire's work is examined from the perspective of the German educational theorist and philosopher Gottfried Mergner who developed a theory on the social limits to learning and critically discussed Freire's work.
description: JSSE - Journal of Social Science Education, 1-2006: International Perspectives of Human Rights Education (HRE)
Probing Fermi sea topology by Andreev state transport
Creators: name: Tam, Pok Man
name: Kane, Charles L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We show that the topology of the Fermi sea of a two-dimensional electron gas (2DEG) is reflected in the ballistic Landauer transport along a long and narrow Josephson $π$-junction that proximitizes the 2DEG. The low-energy Andreev states bound to the junction are shown to exhibit a dispersion that is sensitive to the Euler characteristic of the Fermi sea ($χ_F$). We highlight two important relations: one connects the electron/hole nature of Andreev states to the convex/concave nature of Fermi surface critical points, and one relates these critical points to $χ_F$. We then argue that the transport of Andreev states leads to a quantized conductance that probes $χ_F$. An experiment is proposed to measure this effect, from which we predict an $I$-$V$ characteristic that not only captures the topology of Fermi sea in metals, but also resembles the rectification effect in diodes. Finally, we evaluate the feasibility of measuring this quantized response in graphene, InAs and HgTe 2DEGs.
description: Main: 4 pages, 3 figures. Supplemental: 3 sections, 2 figures. Published version
Blind Wireless Beamforming to Power, Heat, and Move
Creators: name: Wang, Jingxian
Publisher: name: Carnegie Mellon University
Year: 2023
Subjects: Computer Engineering

description: The past decades witnessed a proliferation of wireless systems research that has focused on designing more efficient communication and novel sensing applications. However, another well-known capability of wireless has arguably received less attention: the ability to heat, and more generally, provide energy. As an example, consider the microwave oven, a nearly 50-year-old invention that to this day continues to remain largely similar in capability, blasting energy blindly to re-heat food without advancing significantly in terms of fine-grained heating capabilities. Similarly, the existing energy delivery systems for powering battery-free IoT tags energize its surroundings blindly, constraining the battery-free tags to be detected only at specific checkpoints – a range of 5-15 meters at best. While precise control of wireless signals, also known as beamforming, has been an important solution in improving wireless communication systems’ throughput and signal-noise ratio, these systems have not directly translated to innovations in wireless systems for heating and energy delivery more broadly. In this dissertation, we build a suite of blind beamforming systems that deliver precisely controllable wireless energy to battery-free devices (e.g., RFID) and objects (e.g., pizza). First, this thesis describes PushID, a beamforming system that powers battery-free RFID tags at scale. Second, inspired by PushID, we present SDC, a redesigned microwave oven system to heat food in a software-defined and fine-grained thermal trajectory. Further, we build on the same heating principle to develop WASER, which moves electronics-free soft robots using wireless beamforming. Besides these, this thesis demonstrates novel battery-free soft materials that can efficiently harvest wireless energy and be capable of advanced sensing capabilities.
title: Social connection guide for activity planning
Creators: name: Farmer, Jane
name: Rowe, Callan
name: De Cotta, Tracy
name: Savic, Milovan
Publisher: name: Swinburne University of Technology
publisherIdentifier: https://ror.org/031rekg67
publisherIdentifierScheme: ROR
Year: 2024

description: This guide is a practical resource for practitioners looking to foster social connection in their communities through activities, programs or interventions. It explains the key concepts related to social connection and offers a model to help understand how they fit together. This guide takes a hands-on approach and offers practical advice on applying these ideas in everyday settings. It is a practical companion to the Social Connection 101.
title: The Making of a Spanish Dos Passos
Creators: name: Bautista-Cordero, Rosa Maria
Publisher: name: Universität Graz
Year: 2022

description: This article explores the position of Dos Passos as a writer in the Spanish polysystem,
in which the story of the Spanish translator of Manhattan Transfer has
been central in keeping Dos Passos's legacy alive in this country. After an overview
of Dos Passos's bonds with the country from the American writer’s first
trip to Spain in 1916, this analysis of the presence of Dos Passos's works in
Spain begins on the last days of Miguel Primo de Rivera’s dictatorship, when
the Spanish translation of Manhattan Transfer was first published in Madrid in
1929; continues through the Spanish Civil War and Franco's dictatorship (1939-
1975), and takes us to present-day twenty-first century Spain.
description: Keywords: John Dos Passos, Censorship, Ernest Hemingway, Manhattan Transfer,
Polysystem Theory, Spanish Civil War, Transatlantic Literary Studies, Translation
description: AmLit: 2.2. (2022)
www.HuriSearch.org - A Search Engine for Human Rights Information
Creators: name: Verstappen, Bert
Publisher: name: JSSE - Journal of Social Science Education
Year: 2006

description: This article provides a brief overview of search engines and describes how they work. It highlights HuriSearch, a human rights search engine, initiated by HURIDOCS - Human Rights Information and Documentation Systems, International. The article describes the background and aims of HuriSearch and the way in which the project has been implemented. This is followed by a comparison between HuriSearch and the general search engine Google, concerning the relevancy of searches and the depth of crawling. Finally, the future perspectives of HuriSearch are outlined.
description: JSSE - Journal of Social Science Education, 1-2006: International Perspectives of Human Rights Education (HRE)
Modifying the linear two-step Windmeijer correction for the presence of spatial error dependence
Creators: name: Fingleton, Bernard
Publisher: name: Apollo - University of Cambridge Repository
Year: 2022
Subjects: Original Paper
Dynamic spatial panel data models
Windmeijer correction
Monte Carlo simulation
Inference
Spatial error dependence
US States’ cigarette consumption
EU regional productivity
C31
C33
R1

description: AbstractThe aim in the paper is to show how the presence of spatial dependence affects the often-adopted Windmeijer (J Econom 126:25–51, 2005) finite sample correction (For example it is an option facilitating robust estimation in the software package Stata, which is used by many applied econometricians and data analysts.), which corrects the downward bias in estimated parameter standard errors. Windmeijer (2005) explains why, with numerous instruments, the estimated asymptotic standard errors of the efficient, two-step, GMM estimator are downward biased in small samples. GMM estimation is based on an estimated optimal weight matrix, which is the inverse of the covariance of the sample moments, and the bias results from the weight matrix being evaluated at estimated, rather than the true values of parameters. Hwang et al. (J Econom 229(2):276–298, 2022) provide a correction to the Windmeijer (2005) finite sample correction to allow for over-identification bias. The novel contribution of the current paper is to show how the Windmeijer (2005) correction can be modified given spatial dependence in the error term of a model with moments conditions that are linear in parameters estimated by GMM, leading to corrected standard errors and therefore more accurate inference. Monte Carlo simulations are used to demonstrate the effect of the modification and two examples using real data shows how inference may be affected by ignoring the effect of spatial error dependence.
Quantum Secret Sharing with error correction
Creators: name: Mouzali, Aziz
name: Merazka, Fatiha
name: Markham, Damian
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Cryptography and Security (cs.CR)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We investigate in this work a quantum error correction on a five-qubits graph state used for secret sharing through five noisy channels. We describe the procedure for the five, seven and nine qubits codes. It is known that the three codes always allow error recovery if only one among the sents qubits is disturbed in the transmitting channel. However, if two qubits and more are disturbed, then the correction will depend on the used code.
description: We just add the four figures
Education for Democratic Citizenship in Poland
Creators: name: Radiukiewicz, Anna
name: Grabowska-Lusinska, Izabela
Publisher: name: JSSE - Journal of Social Science Education
Year: 2008

description: The civic education is one of the biggest challenges of every nation, but in Poland – as a post-communist country – the upbringing of young generation to life in a democratic and modern world, is essential. Education, and so education for democratic citizenship, is very important, even decisive force of development of societies – it can flourish or decline the development. The purpose of this paper is to identify and explain development and evolution of civic education in Poland at different phases of the systemic transition. Additionally, the authors point out the barriers of civic culture’s development and abilities of institutions, which enable civic education in Poland. Thus, the paper analyses constellations of actors concerning on the one hand factors eroding education for democratic citizenship from schools and on the other hand those which unevenly and constantly building, grass-rooting and enhancing civic education at all levels of educational process.
description: JSSE - Journal of Social Science Education, 2-2007: Transformation and Citizenship Education I
Polarized Rabi-Coupled and Spinor Boson Droplets
Creators: name: Yoğurt, T. A.
name: Keleş, A.
name: Oktel, M. Ö.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Self-bound quantum droplets form when the mean-field tendency of the gas to collapse is stabilized by the effectively repulsive beyond mean-field fluctuations. The beyond mean-field effects depend on Rabi-frequency $ω_R$ and quadratic Zeeman effect $q$ for the Rabi-coupled Bose mixtures and the spinor gases, respectively. The effects of varying $ω_R$ and $q$ on the quantum droplet have recently been examined for unpolarized Rabi-coupled Bose mixture with zero detuning $δ= 0$ and unpolarized spinor gas with $\langle F_z \rangle=0$. In this paper, we theoretically explore the stability of the droplet phase for polarized $δ\neq 0$ Rabi-coupled Bose mixture and $\langle F_z \rangle \neq 0$ spinor gas. We calculate the Lee-Huang-Yang corrections for both gases with polarized order parameters and obtain the phase diagram of the droplets on the parameter space of $ω_R$-$δ$ and $q$-$p$ for Rabi-coupled mixture and spinor gas, respectively. Finally, we highlight the similarities and differences between the two systems and discuss their experimental feasibility.
Digital Detective Work: Connecting Cheminformatics, Mass Spectrometry and our Environment via Open Data (RSC Open Data for Chemistry)
Creators: name: Schymanski, Emma
Publisher: name: Zenodo
Year: 2020
Subjects: cheminformatics
open data
transformation products

description: Invited talk given for the Royal Society of Chemistry "Open Data for Chemistry" Meeting https://www.rsc.org/events/detail/43179/open-data-for-chemistry Thanks to Nathan Brown for the invitation!
Transformed Institutions – Transformed Citizenship Education? Remarks on the Current Situation in Spain
Creators: name: Jover, Gonzalo
name: Naval, Concepción
Publisher: name: JSSE - Journal of Social Science Education
Year: 2008

description: Educational systems are placing great emphasis on the need to generate a sense of citizenship. In this article, we treat this question within the concrete framework of the recent history of Spain (from 1990 to current day). We make reference to three points: (1) The institutional framework of citizenship education; (2) The concepts of citizenship present in the school curriculum and the public debate; (3) The state of research into citizenship education. Based on our analysis of the situation in Spain, we draw several conclusions regarding international research projects on citizenship education.
description: JSSE - Journal of Social Science Education, 2-2007: Transformation and Citizenship Education I
The Case of (East-) Germany
Creators: name: Reinhardt, Sibylle
Publisher: name: JSSE - Journal of Social Science Education
Year: 2008

description: There has been a long tradition of thinking on Civic Education in Western Germany, mainly after World War II. Aims and means have been discussed thoroughly, experiences in teaching politics (the most common name for the school subject) have been reported on. After the (re-)union of the two Germanies in 1990, Western concepts were brought to and adopted by Eastern Germany. Transformation of civic education (politische Bildung) faces the problem that the democratic system is open to conflicts and competition and does not lead and direct the citizen in an authoritative manner. Democracy asks for different abilities on the side of its citizens than an authoritarian system does. Research data show the difficulties of learning for democracy.
description: JSSE - Journal of Social Science Education, 2-2007: Transformation and Citizenship Education I
The blue crab issue and the local perception after two years from the first documented report obtained through a citizen science initiative in the Circeo MaB Reserve
Creators: name: Gaglioti, Martina
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 310305
subject: Marine and estuarine ecology (incl. marine ichthyology)

description: Callinectes sapidus (Rathbun,1896) is an Atlantic Portunid crab and in European waters is well-recognized as a rapidly expanding invasive species (Clavero et al., 2022). Its presence has been widely confirmed in several locations of the Mediterranean coasts (Bdioui, M., 2016; Perdikaris et al., 2016; Fuentes et al., 2019; Shaiek et al., 2021). At local level, as previously testified from the informal alert received thanks to the timely reporting of some local fishermen and validated by researchers studying the species in this region, already in 2021, the Callinectes sapidus was present in the Biosphere Reserve. This species is not the unique alien incomer in the Mediterranean Sea, the other species detected along Med Sea shores and recently confirmed also for the Adriatic Sea is the blue swimming crab Portunus segnis, which similarly from 2002 onward followed a rapidly increasing expansion dynamic (Castriota et al., 2022).
Generative models uncertainty estimation
Creators: name: Anderlini, Lucio
name: Chimpoesh, Constantine
name: Kazeev, Nikita
name: Shishigina, Agata
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: G.3; I.2.6; J.2

description: In recent years fully-parametric fast simulation methods based on generative models have been proposed for a variety of high-energy physics detectors. By their nature, the quality of data-driven models degrades in the regions of the phase space where the data are sparse. Since machine-learning models are hard to analyse from the physical principles, the commonly used testing procedures are performed in a data-driven way and can't be reliably used in such regions. In our work we propose three methods to estimate the uncertainty of generative models inside and outside of the training phase space region, along with data-driven calibration techniques. A test of the proposed methods on the LHCb RICH fast simulation is also presented.
description: Under review in Journal Of Physics: Conference Series (ACAT-2021)
Asymptotic behaviour of Maxwell fields in higher dimensions
Creators: name: Ortaggio, Marcello
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the fall-off behaviour of test electromagnetic fields in higher dimensions as one approaches infinity along a congruence of "expanding" null geodesics. The considered backgrounds are Einstein spacetimes including, in particular, (asymptotically) flat and (anti-)de Sitter spacetimes. Various possible boundary conditions result in different characteristic fall-offs, in which the leading component can be of any algebraic type (N, II or G). In particular, the peeling-off of radiative fields F=Nr^{1-n/2}+Gr^{-n/2}+... differs from the standard four-dimensional one (instead it qualitatively resembles the recently determined behaviour of the Weyl tensor in higher dimensions). General p-form fields are also briefly discussed. In even n dimensions, the special case p=n/2 displays unique properties and peels off in the "standard way" as F=Nr^{1-n/2}+IIr^{-n/2}+.... A few explicit examples are mentioned.
description: 23 pages. v2: new appendix A summarizes the definitions of the Ricci rotation coefficients; several technical details moved to new appendix B; former footnote 8 was not precise and has been removed; added/fixed references, typos corrected
title: John Dos Passos in the Crosshairs of Censorship: Investigating the Portuguese Censorship Reports during the Estado Novo, the Portuguese Dictatorship under António de Oliveira Salazar
Creators: name: Oliveira, Miguel
Publisher: name: Universität Graz
Year: 2022

description: This paper aims to shed light on how the Luso-American writer John Dos Passos
and his oeuvre were submitted to censorship during the Estado Novo
(“New State”), the Portuguese dictatorship that lasted from 1933 to 1974.
A short introduction will explain how censorship functioned and how other
North-American writers, such as Upton Sinclair, Howard Fast, William Faulkner,
Ernest Hemingway, John Steinbeck, and Norman Mailer were blue-penciled,
too.
After this general overview, I shall explore in depth the ways in which John Dos
Passos was subjected to cuttings and banning. Based on his particular case, I
will show what the bowdlerization eventually meant for the author. In doing so, I
will mention and quote from—so far—inedited archive documents, namely the
existing censorship reports on John Dos Passos, i.e. the reports on Adventures
of a Young Man, The 42nd Parallel, 1919, The Big Money, and Chosen Country
description: Keywords: John Dos Passos, Censorship, Estado Novo, Ernest Hemingway, 1919, Adventures
of a Young Man, The Big Money, The 42nd Parallel.
description: AmLit: 2.2. (2022)
Cosmic acceleration in non-canonical scalar field model - An interacting scenario
Creators: name: Das, Sudipta
name: Mamon, Abdulla Al
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper we have studied the dynamics of accelerating scenario within the framework of scalar field models possessing a non-canonical kinetic term. In this toy model, the scalar field is allowed to interact with the dark matter component through a source term. We have assumed a specific form for the coupling term and then have studied the dynamics of the scalar field having a constant equation of state parameter. We have also carried out the dynamical system study of such interacting non-canonical scalar field models for power law potentials for some physically relevant specific values of the model parameters. It has been found that the only for two particular stable fixed points of the system, an accelerating solution is possible and the universe will settle down to a $Λ$CDM universe in future and thus there is no future singularity in this model.
description: 18 pages, 10 figures; typos corrected, added more figures, matches published version