cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Theorizing the Curriculum
Creators: name: Furlán, Alfredo
name: Rios, Julio U.
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2017

description: Neoliberal rationality, through the enterprise model, produces subjectivities guided by the principle of competition. In the struggle to succeed in the market, the participants are solely responsible for each participant's success. Thus, neoliberalism promotes the idea that the social destiny of individuals is a product of the management that they make of their trajectory. This article theorizes how this idea currently permeates the field of the curriculum in which, hand in hand with international organizations, mercantilist thinking passes through curricular proposals that promote standardization as a necessary condition for the achievement of the learning required to succeed in the 21st century; an approach that in higher education is expressed in the creation of standards that certify the quality of curricula. However, the design of parameters to be followed does not ensure full implementation of curricular reforms. Rather than being based on the models envisaged, the scope of the curricular change processes responds to the set of diverse practices that constitute the curriculum. Between the ideas and experiences of the curriculum, there is a transition shaped by the experiences of the subjects, regional contexts, biographies, institutional history, etc. Within this scenario, it is the teacher's active and conscious participation that allows us to maintain the coherence of the curricular project developed. Paradoxically, from the enterprise model, academic and intellectual freedom of teachers is allowed and favored according to innovation as a standard for maximizing school results.
description: TCI (Transnational Curriculum Inquiry), Vol. 14 No. 1-2 (2017): Special Issue: Voices, Tensions and Perspectives of Curriculum
Damping in two component Bose gas
Creators: name: Bhattacherjee, Aranya B
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate the Landau and Baliaev damping of the collective modes in a two-component Bose gas using the mean-field approximation. We show that due to the two body atom-atom interaction, oscillations of each component is coupled to the thermal excitations of the other component which gives rise to creation or destruction of the elementary excitations that can take place in the two separate components.In addition we find that the damping is also enhanced due to inter-component coupling.
description: To appear in Modern Physics Letters B
Chiaroscuros in Curricular Innovations: between Desire and Reality
Creators: name: Barrón, Concepcion
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2017

description: In this article, curricular innovations are addressed as hegemonic projects that have guided curricular reforms in recent years. Specifically, the model by competencies is analyzed by its scope and limitations within the cultural and ethnic diversity framework in the Mexican context. This article is structured in three sections: 1. Curricular innovations; these are conceived as an indispensable condition, as a series of long-range transformations that encompass cognitive, pragmatic, attitudinal, ethics and political dimensions. 2. Competency-based curricular model; a critical review is made around this model, which is instituted from basic to higher education. 3. Cultural diversity and the right to education; education is analyzed as a constitutional guarantee and as a human right with an intercultural perspective evidencing that, despite the great efforts made, social and cultural inequity persists.
description: TCI (Transnational Curriculum Inquiry), Vol. 14 No. 1-2 (2017): Special Issue: Voices, Tensions and Perspectives of Curriculum
The quantum origins of skyrmions and half-skyrmions in Cu2OSeO3
Creators: name: Janson, O.
name: Rousochatzakis, I.
name: Tsirlin, A. A.
name: Belesi, M.
name: Leonov, A. A.
name: Roessler, U. K.
name: Brink, J. van den
name: Rosner, H.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Skyrme-particle, the $skyrmion$, was introduced over half a century ago and used to construct field theories for dense nuclear matter. But with skyrmions being mathematical objects - special types of topological solitons - they can emerge in much broader contexts. Recently skyrmions were observed in helimagnets, forming nanoscale spin-textures that hold promise as information carriers. Extending over length-scales much larger than the inter-atomic spacing, these skyrmions behave as large, classical objects, yet deep inside they are of quantum origin. Penetrating into their microscopic roots requires a multi-scale approach, spanning the full quantum to classical domain. By exploiting a natural separation of exchange energy scales, we achieve this for the first time in the skyrmionic Mott insulator Cu$_2$OSeO$_3$. Atomistic ab initio calculations reveal that its magnetic building blocks are strongly fluctuating Cu$_4$ tetrahedra. These spawn a continuum theory with a skyrmionic texture that agrees well with reported experiments. It also brings to light a decay of skyrmions into half-skyrmions in a specific temperature and magnetic field range. The theoretical multiscale approach explains the strong renormalization of the local moments and predicts further fingerprints of the quantum origin of magnetic skyrmions that can be observed in Cu$_2$OSeO$_3$, like weakly dispersive high-energy excitations associated with the Cu$_4$ tetrahedra, a weak antiferromagnetic modulation of the primary ferrimagnetic order, and a fractionalized skyrmion phase.
description: 5 pages, 3 figures
Internationalization and "Pensamiento Curricular Latinoamericano"
Creators: name: Johnson Mardones, Daniel F.
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2017

description: This text draws upon the concept of internationalization in Curriculum Studies to self-reflect on the existence and possibilities of Latin American curriculum thinking. I think of internationalization not just as a moment of the U.S. field but also as a dimension of Curriculum Studies thought from a planetary horizon. Therefore, grounding my understanding of internationalization as a dimension of the field of curriculum here by juxtaposing the historical development of the field in the United States in relation to Latinoamérica, I would like to suggest again that the next step to building an international field of curriculum studies is enlarging the conversation beyond its Anglo-Saxon and European influences. My work may be understood as an attempt to bring the Latin American educational tradition more strongly into the international conversation that is now Curriculum Studies. In doing so, I am, to some extent, rejoining two educational traditions, the Latina American and the Anglo-American, to continue a conversation already begun in the 1970s but interrupted since then.
description: TCI (Transnational Curriculum Inquiry), Vol. 14 No. 1-2 (2017): Special Issue: Voices, Tensions and Perspectives of Curriculum
Infrared Tip of the Red Giant Branch and Distances to the Maffei/IC 342 Group
Creators: name: Wu, Po-Feng
name: Tully, R. Brent
name: Rizzi, Luca
name: Dolphin, Andrew E.
name: Jacobs, Bradley A.
name: Karachentsev, Igor D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In this paper, we extend the use of the tip of the red giant branch (TRGB) method to near-infrared wavelengths from previously-used $I$-band, using the \textit{Hubble Space Telescope (HST)} Wide Field Camera 3 (WFC3). Upon calibration of a color dependency of the TRGB magnitude, the IR TRGB yields a random uncertainty of $\sim 5%$ in relative distance. The IR TRGB methodology has an advantage over the previously-used ACS $F606W$ and $F814W$ filter set for galaxies that suffer from severe extinction. Using the IR TRGB methodology, we obtain distances toward three principal galaxies in the Maffei/IC 342 complex, which are located at low Galactic latitudes. New distance estimates using the TRGB method are 3.45$^{+0.13}_{-0.13}$ Mpc for IC 342, 3.37$^{+0.32}_{-0.23}$ Mpc for Maffei 1 and 3.52$^{+0.32}_{-0.30}$ Mpc for Maffei 2. The uncertainties are dominated by uncertain extinction, especially for Maffei 1 and Maffei 2. Our IR calibration demonstrates the viability of the TRGB methodology for observations with the \textit{James Webb Space Telescope (JWST)}.
description: 14 pages, 14 figure, submitted to AJ
Linear-Time Compression of Bounded-Genus Graphs into Information-Theoretically Optimal Number of Bits
Creators: name: Lu, Hsueh-I
Publisher: name: arXiv
Year: 2014
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: A $\textit{compression scheme}$ $A$ for a class $\mathbb{G}$ of graphs consists of an encoding algorithm $\textit{Encode}_A$ that computes a binary string $\textit{Code}_A(G)$ for any given graph $G$ in $\mathbb{G}$ and a decoding algorithm $\textit{Decode}_A$ that recovers $G$ from $\textit{Code}_A(G)$. A compression scheme $A$ for $\mathbb{G}$ is $\textit{optimal}$ if both $\textit{Encode}_A$ and $\textit{Decode}_A$ run in linear time and the number of bits of $\textit{Code}_A(G)$ for any $n$-node graph $G$ in $\mathbb{G}$ is information-theoretically optimal to within lower-order terms. Trees and plane triangulations were the only known nontrivial graph classes that admit optimal compression schemes. Based upon Goodrich's separator decomposition for planar graphs and Djidjev and Venkatesan's planarizers for bounded-genus graphs, we give an optimal compression scheme for any hereditary (i.e., closed under taking subgraphs) class $\mathbb{G}$ under the premise that any $n$-node graph of $\mathbb{G}$ to be encoded comes with a genus-$o(\frac{n}{\log^2 n})$ embedding. By Mohar's linear-time algorithm that embeds a bounded-genus graph on a genus-$O(1)$ surface, our result implies that any hereditary class of genus-$O(1)$ graphs admits an optimal compression scheme. For instance, our result yields the first-known optimal compression schemes for planar graphs, plane graphs, graphs embedded on genus-$1$ surfaces, graphs with genus $2$ or less, $3$-colorable directed plane graphs, $4$-outerplanar graphs, and forests with degree at most $5$. For non-hereditary graph classes, we also give a methodology for obtaining optimal compression schemes. From this methodology, we give the first known optimal compression schemes for triangulations of genus-$O(1)$ surfaces and floorplans.
description: 26 pages, 9 figures, accepted to SIAM Journal on Computing
Dialogues and Circumstances as Unavoidable Topics in Curriculum Field
Creators: name: Morelli Gasó, Silvia Teresa
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2017

description: The twenty-first century offers a new twist for curriculum field. Basting its theses, may be able to put forward new ways to live the international with the particularities of the local. For this, it turns to the dialogues and conversations as articulating metaphors between different contexts. When Pinar denominates curriculum as a complicated conversation means a cross into stories and politics, between the local or national and the international. But taking the challenges to curriculum studies, the curriculum notion enters in discursive frame where its floating signifier makes an ambiguous and polysemic word. That is why, when curriculum refers to conversations and dialogues identifies the discourse as a main category for understanding practices, theoretical constructions and the subjectivities of its speakers. It identifies curriculum like a social event, and considers it is a signifier politically and cultural involved. As a floating signifier, provides senses that printed in the language-game of the later Wittgenstein. Likewise, to refer to dialogues includes culture, identity, subject, difference and antagonism. The special feature of this scenario is evidenced by the philosophical rupture at the end of the twentieth century between modernity and postmodernism. Since then, a new perspective in curriculum studies emerges showing that disagreements in the curriculum field are necessary for its intellectual growth. It breaks with the hegemony of its field during the twentieth century, and establishes differences, equivalences and articulations with signified in postmodern scenes. In Latin America, it is important to make studies that address current curriculum problems referring to unavoidable topics as those subjects, which cannot be evaded, dodged or go unnoticed. I understand that the unavoidability lies in the event shapes between dialogues and circumstances which, as a meeting point, generates a change of direction in our curricular journey. What is unavoidable is the discourse that generates tension in the critical theories' paradigms and their post-critical framed in the de Alba’s curriculum-society relationship. Latin American curriculum studies present events in the dialogues between Lopes and de Alba, Díaz Barriga and García Garduño or when Pinar mediates in the curriculum studies in Mexico or Brazil. These dialogues and circumstances are metaphors that symbolize the languages of the curriculum in the post-critical times. Topics that become conceptual knot whose marks contain notions, genealogies and subjectivities are: (1) field emergency, (2) tension between critical and post-critical theories, (3) Curriculum/Didaktik relationship and (4) curriculum research from new perspectives.
description: TCI (Transnational Curriculum Inquiry), Vol. 14 No. 1-2 (2017): Special Issue: Voices, Tensions and Perspectives of Curriculum
title: Book review : Jackson, S. (Ed.) (2013). Pathways through education for young people in care. London: British Association for Adoption and Fostering. 276 pp, ISBN 9781907585722
Creators: name: Farrugia, Ben
Publisher: name: Strathprints - University of Strathclyde
Year: 2014

description: For young people in care the pathway through education can be littered with obstacles. Traumatic experiences sustained prior to (or as a result of) coming into care are often compounded by placement instability, school disruption and inadequate support. The outcome for most is a level of educational achievement, at school-leaving age, significantly below that of the general population.
Transformation of Teachers as Active Agents in Curriculum Building
Creators: name: Hernández, Carola
name: Benítez, Milena
name: Flores, Irma Alicia
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2017

description: The policy 40x40 Curriculum for Excellence and Comprehensive Education was conceived as the proper framework to design and implement programs to offer quality education in the framework of the Bogota Humana District Government Plan. Nevertheless, there is a struggle in relation to the curriculum in Colombia: on one hand, the Law established curricular autonomy and on the other the teachers and educative researchers who oppose pedagogy to the curriculum. Thus, for the development of this public policy in Bogota, the Center for Research and Formation in Education–CIFE- design and offered a teacher training for the re-signification of the concept of curriculum and the empowerment of teachers in building curricula in line with the proposals of the policy and responding to their particular contexts. This article shares the results of the systematization of the experience (Jara, 1994; Jara, 2006) lived in the course by answering two questions: What are the perceptions of the teachers about the course? And, what are the main ideas learned by the teachers in the course? The results of this study show that the course designed shows some divergences and convergences of the curricular realities faced by teachers in institutions. Among the tensions were identified, in addition to the new demands that students and teachers generate to the institutional curriculum, the difficulty to make decisions in relation to the curriculum change. Within the convergences, the results show that the designed course is a pertinent and suitable strategy for the diffusion and appropriation of the policy documents.
description: TCI (Transnational Curriculum Inquiry), Vol. 14 No. 1-2 (2017): Special Issue: Voices, Tensions and Perspectives of Curriculum
Reflection on Wisdom that Responds to Market Logic of David G. Smith
Creators: name: Huynh, Phuong Mai
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2017

description: The problem found in contemporary education is that education tends to act with the logic and process of the Market. In this market-driven way, education attempts to shape people in ways that merely serve economic profits. With the particular end-in-view, people oriented themselves externally to match the ideals that the Market designs instead of nurturing genuine inner development. The essay looks at the interesting and profound work of David Geoffrey Smith, who is a proven educator specializing in both areas of Globalization and Wisdom Traditions. Smith suggests that it is significant to present a voice of wisdom in our contemporary educational setting where market logic is overly dominant. What we then need to do, is to bring back questions of personal understanding, human values and the meanings of human life as primary sources of education.
description: TCI (Transnational Curriculum Inquiry), Vol. 14 No. 1-2 (2017): Special Issue: Voices, Tensions and Perspectives of Curriculum
Currere, Subjective Reconstruction and Autobiographical Theory
Creators: name: Wang, Wanying
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2017

description: This research articulates my life as an international student grappling with my own life history, my present preoccupations, my dreams of future, both continuous and unprecedented. The complex roles of institutional structures, political and policy agendas, teaching protocols and educational theories are threaded through the subjective experience of the individual personal-myself, as articulated autobiographically. The study provides understandings of subjectivity from both West and East perspectives as well of the method of currere to articulate the issues I face as student, teacher, woman, and Chinese in Canada. It provides an example of how I use currere to acquire a deeper understanding of self.
description: TCI (Transnational Curriculum Inquiry), Vol. 14 No. 1-2 (2017): Special Issue: Voices, Tensions and Perspectives of Curriculum
The period analysis of V418 Aql, SU Boo, RV CVn, CR Cas, GV Cyg, V432 Per, and BD+42 2782
Creators: name: Zasche, P.
name: Wolf, M.
name: Uhlar, R.
name: Kucakova, H.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The minimum timings of eclipsing binaries V418 Aql, SU Boo, RV CVn, CR Cas, GV Cyg, V432 Per, and BD+42 2782 were collected and analyzed. Their long-term behavior was studied via period analysis, revealing a periodic term in eclipse times. We derived 576 new times of minimum. Hence, to describe the periodic variation, a thirdbody hypothesis was proposed and the resulting orbital periods are as follows: 70, 7.4, 53, 37, 27, 53, and 18 yr, respectively. For the system V432 Per an additional 9.5 yr variation was also found. The predicted minimum masses of these distant bodies were calculated and their detectability discussed. The light curves of SU Boo and RV CVn were analyzed using the PHOEBE program, resulting in physical parameters of the components. New variable stars in the field of V418 Aql were discovered.
description: 15 pages in total (incl. online-only tables), 11 figures, published in: 2014AJ....147..130Z
Regularity of local times associated with Volterra–Lévy processes and path-wise regularization of stochastic differential equations
Creators: name: Harang, Fabian A.
name: Ling, Chengcheng
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 510 Mathematik
subject: stochastic differential equations
subject: Lévy process
subject: Volterra process
subject: regularization by noise
subject: occupation measure
subject: local time
subject: young integral
subject: Stochastic Sewing Lemma

description: We investigate the space-time regularity of the local time associated with Volterra–Lévy processes, including Volterra processes driven by α-stable processes for α∈(0,2]. We show that the spatial regularity of the local time for Volterra–Lévy process is P-a.s. inverse proportional to the singularity of the associated Volterra kernel. We apply our results to the investigation of path-wise regularizing effects obtained by perturbation of ordinary differential equations by a Volterra–Lévy process which has sufficiently regular local time. Following along the lines of Harang and Perkowski (2020), we show existence, uniqueness and differentiability of the flow associated with such equations.
On the Construction of Low-Energy Cislunar and Trans-lunar Transfers Based on the Libration Points
Creators: name: Xu, Ming
name: Wei, Yan
name: Xu, Shijie
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: There exist cislunar and trans-lunar libration points near the Moon, which are referred as the LL1 and LL2 points respectively and can generate the different types of low-energy trajectories transferring from Earth to Moon. The time-dependent analytic model including the gravitational forces from the Sun, Earth and Moon is employed to investigate the energy-minimal and practical transfer trajectories. However, different from the circular restricted three-body problem, the equivalent gravitational equilibria are defined according to the geometry of instantaneous Hill's boundary due to the gravitational perturbation from the Sun. The relationship between the altitudes of periapsis and eccentricities is achieved from the Poincaré mapping for all the lunar captured trajectories, which presents the statistical feature of the fuel cost and captured orbital elements rather than generating a specified Moon-captured segment. The minimum energy required by the captured trajectory on a lunar circular orbit is deduced in the spatial bi-circular model. It is presented that the asymptotical behaviors of invariant manifolds approaching to/from the libration points or halo orbits are destroyed by the solar perturbation. In fact, the energy-minimal cislunar transfer trajectory is acquired by transiting LL1 point, while the energy-minimal trans-lunar transfer trajectory is obtained by transiting LL2 point. Finally, the transfer opportunities for the practical trajectories escaped from the Earth and captured by the Moon are yielded by transiting halo orbits near LL1 and LL2 points, which can be used to generate the whole trajectories.
description: 45 pages, 28 figures
Curriculum: Voices, Tensions and Perspectives
Creators: name: Lopes, Alice Casimiro
name: Gallardo Gutiérrez, Ana Laura
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2017

description: Editorial
description: TCI (Transnational Curriculum Inquiry), Vol. 14 No. 1-2 (2017): Special Issue: Voices, Tensions and Perspectives of Curriculum
Strong plasma screening in thermonuclear reactions: Electron drop model
Creators: name: Kravchuk, P. A.
name: Yakovlev, D. G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We analyze enhancement of thermonuclear fusion reactions due to strong plasma screening in dense matter using a simple electron drop model. The model assumes fusion in a potential that is screened by an effective electron cloud around colliding nuclei (extended Salpeter ion-sphere model). We calculate the mean field screened Coulomb potentials for atomic nuclei with equal and nonequal charges, appropriate astrophysical S factors, and enhancement factors of reaction rates. As a byproduct, we study analytic behavior of the screening potential at small separations between the reactants. In this model, astrophysical S factors depend not only on nuclear physics but on plasma screening as well. The enhancement factors are in good agreement with calculations by other methods. This allows us to formulate the combined, pure analytic model of strong plasma screening in thermonuclear reactions. The results can be useful for simulating nuclear burning in white dwarfs and neutron stars.
description: 15 pages, 8 figures
Two torsion in the Brauer group of a hyperelliptic curve
Creators: name: Creutz, Brendan
name: Viray, Bianca
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14F22, 14G05

description: We construct unramified central simple algebras representing 2-torsion classes in the Brauer group of a hyperelliptic curve, and show that every 2-torsion class can be constructed this way when the curve has a rational Weierstrass point or when the base field is C_1. In general, we show that a large (but in general proper) subgroup of the 2-torsion classes are given by the construction. Examples demonstrating applications to the arithmetic of hyperelliptic curves defined over number fields are given.
description: 25 pages. This was part I of arXiv:1306.3251v1; part II will be posted as arXiv:1306.3251v2
Comparative Analysis On Some Possible Partnership Schemes of Global IP Exchange Providers
Creators: name: Gunawan, David
name: Budiono, Karno
Publisher: name: arXiv
Year: 2014
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: IP eXchange or IPX is GSMA proposal for IP interconnection model which supports multi services to offer end-to-end QoS, security, interoperability, SLAs through a dedicated connection. There are some possible partnership schemes between IPX providers such as peering mode, semi-hosted mode, full-hosted mode, or combination between these modes. The implementation of the schemes will be case-by-case basis with some considerations based on, but not limited to, IPX Providers network asset, coverage, services, features offer, commercial offer, and customers. For an IPX provider to become competitive in IPX business and become a global IPX hub, some value added should be considered such as cost efficiency and great network performance. To achieve it, an IPX provider could implement some strategies such as build network sinergy between them and partners to develop IPX Service as single offering, offer their customers with bundled access network and services. An IPX provider should also consider their existing customer-based that can be a benefit to their bargaining position to other potential IPX provider partners to determine price and business scheme for partnership.
description: 12 pages, 8 figures
Multi-objective optimization of energy-efficient production schedules using genetic algorithms
Creators: name: Küster, Tobias
name: Rayling, Philipp
name: Wiersig, Robin
name: Pardo, Francisco Denis Pozo
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 004 Datenverarbeitung; Informatik
subject: industrial optimization
subject: genetic algorithms
subject: energy modeling
subject: schedule optimization

description: The optimization of production schedules to be more energy efficient while still meeting production goals is a difficult task: How to schedule and distribute production tasks to meet production goals, while making best use of fluctuating energy market prices and availability of locally installed energy sources? Although a large body of related work exists in this domain, most of those seem to focus on individual aspects and not the whole picture. In this paper, a genetic algorithm for optimization of production schedules with respect to energy consumption, peak shaving, and makespan is presented, that also takes into account that tasks can be performed in different ways, having different characteristics. The algorithm has been successfully employed within the SPEAR project by applying it for optimization of an automotive production line and for the pathway of an automated guided vehicle.
Artificial intelligence in fiction: between narratives and metaphors
Creators: name: Hermann, Isabella
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 004 Datenverarbeitung; Informatik
subject: AI narratives
subject: artificial intelligence
subject: robots
subject: Science-fiction
subject: science communication

description: Science-fiction (SF) has become a reference point in the discourse on the ethics and risks surrounding artificial intelligence (AI). Thus, AI in SF—science-fictional AI—is considered part of a larger corpus of ‘AI narratives’ that are analysed as shaping the fears and hopes of the technology. SF, however, is not a foresight or technology assessment, but tells dramas for a human audience. To make the drama work, AI is often portrayed as human-like or autonomous, regardless of the actual technological limitations. Taking science-fictional AI too literally, and even applying it to science communication, paints a distorted image of the technology's current potential and distracts from the real-world implications and risks of AI. These risks are not about humanoid robots or conscious machines, but about the scoring, nudging, discrimination, exploitation, and surveillance of humans by AI technologies through governments and corporations. AI in SF, on the other hand, is a trope as part of a genre-specific mega-text that is better understood as a dramatic means and metaphor to reflect on the human condition and socio-political issues beyond technology.
Enhancing ordering dynamics in solvent-annealed block-copolymer films by lithographic hard masks supports
Creators: name: Stenbock-Fermor, Anja
name: Knoll, Armin W.
name: Böker, Alexander
name: Tsarkova, Larisa
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We studied solvent-driven ordering dynamics of block copolymer films supported by a densely cross-linked polymer network designed as organic hard mask (HM) for lithographic fabrications. The ordering of microphase separated domains at low degrees of swelling corresponding to intermediate/strong segregation regimes was found to proceed significantly faster in films on a HM layer as compared to similar block copolymer films on silicon wafers. The ten-fold enhancement of the chain mobility was evident in the dynamics of morphological phase transitions and of related process of terrace-formation on a macroscale, as well as in the degree of long-range lateral order of nanostructures. The effect is independent of the chemical structure and on the volume composition (cylinder-/ lamella-forming) of the block copolymers. In-situ ellipsometric measurements of the swelling behavior revealed a cumulative increase in 1-3 vol. % in solvent up-take by HM-block copolymer bilayer films, so that we suggest other than dilution effect reasons for the observed significant enhancement of the chain mobility in concentrated block copolymer solutions. Another beneficial effect of the HM-support is the suppression of the film dewetting which holds true even for low molecular weight homopolymer polystyrene films at high degrees of swelling. Apart from immediate technological impact in block copolymer-assisted nanolithography, our findings convey novel insight into effects of molecular architecture on polymer-solvent interactions.
description: This document is the unedited Author's version of a Submitted Work that was subsequently accepted for publication in Macromolecules, copyright \c{opyright} American Chemical Society after peer review. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/ma500561q
Towards a Curriculum of the Heart: Thinking, Growing, Feeling, and Connecting in Contemporary Education
Creators: name: Coe, Heather Allison
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2017

description: In this paper, I explore the tensions embedded within my experiences as both a learner and a teacher as they relate to curriculum theory, current conceptions of curriculum, and contemporary education. I argue that students growing up today suffer from an unbalanced and unhealthy education system, characterized by a curriculum that is becoming increasingly standardized and impersonal. To help regain balance and to provide students with a more holistic education, I propose a new conception of curriculum: a curriculum of the heart. Similar to the four chambers in the human heart, four main components are essential to a balanced curriculum, education, and life: living, thriving, feeling, and connecting. Within this conception of curriculum, each component serves an important purpose, contributing to students’ overall holistic development and learning. Just as the heart is at the center of the pulmonary system, the curriculum is at the heart of the education system. If there is too much pressure or focus on one component, the system cannot function properly. If this imbalance continues, students will not receive a well-rounded education and will suffer accordingly. Schools have the potential to provide positive and fulfilling lived experiences for students, but must remain conscious that they too, unintentionally, have the potential to accomplish quite the opposite. It is the task of curriculum theorists, teachers, and administrators to initiate and sustain a dialogue about how to provide the best experiences for students and to implement changes that will help them grow in happy, healthy, and holistic ways.
description: TCI (Transnational Curriculum Inquiry), Vol. 13 No. 2 (2016): Curriculum: Different Questions, Different Translations
Fermi Surface Properties, Metamgnetic Transition and Quantum Phase Transition of CeRu$_2$Si$_2$ and Its Alloys Probed by the dHvA Effect--Fermi Surface Studies on the Itinerant and Localized Dichotomy of $f$ Electron Nature
Creators: name: Aoki, Haruyoshi
name: Kimura, Noriaki
name: Terashima, Taichi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: This article describes the Fermi surface properties of CeRu$_2$Si$_2$ and its alloy systems CeRu$_2$(Si$_x$Ge$_{1-x}$)$_2$ and Ce$_x$La$_{1-x}$Ru$_2$Si$_2$ studied by the de Haas - van Alphen (dHvA) effect. We pay particular attention to how the Fermi surface properties and the f electron state change with magnetic properties, in particular how they change associated with metamagnetic transition and quantum phase transition. After summarizing the important physical properties of CeRu$_2$Si$_2$, we present the magnetic phase diagrams of CeRu$_2$(Si$_x$Ge$_{1-x}$)$_2$ and Ce$_x$La$_{1-x}$Ru$_2$Si$_2$ as a function of temperature, magnetic field and concentration $x$. From the characteristic features of the magnetic phase diagram, we argue that the ferromagnetic interaction in addition to the anitferromagnetic interaction and the Kondo effect is responsible for the magnetic properties and that the metamagnetic transitions in these systems are relevant to the ferromagnetic interaction. We summarize the Fermi surface properties of CeRu$_2$Si$_2$ in fields below the metamagnetic transition where the f electron state is now well understood theoretically as well as experimentally. We present experimental results in fields above the metamagnetic transitions in CeRu$_2$(Si$_x$Ge$_{1-x}$)$_2$ and Ce$_x$La$_{1-x}$Ru$_2$Si$_2$ as well as CeRu$_2$Si$_2$ to show that the Fermi surface properties above the metamagnetic transitions are significantly different from those below in many important aspects. We argue that the Fermi surface properties above the metamagnetic transitions are not appropriately described in terms of either itinerant or localized f electron. The experimental results in fields below the metamagnetic transitions in CeRu$_2$(Si$_x$Ge$_{1-x}$)$_2$ and Ce$_x$La$_{1-x}$Ru$_2$Si$_2$ are presented to discuss the f electron state in the ground state. The Fermi surface properties of ...
description: 106 pages, 46 figures
Tropical bisectors and Voronoi diagrams
Creators: name: Criado, Francisco
name: Joswig, Michael
name: Santos, Francisco
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 510 Mathematik
subject: polyhedral norms
subject: polytropes
subject: randomized algorithms
subject: Voronoi diagrams

description: In this paper we initiate the study of tropical Voronoi diagrams. We start out with investigating bisectors of finitely many points with respect to arbitrary polyhedral norms. For this more general scenario we show that bisectors of three points are homeomorphic to a non-empty open subset of Euclidean space, provided that certain degenerate cases are excluded. Specializing our results to tropical bisectors then yields structural results and algorithms for tropical Voronoi diagrams.
Teacher Training Curriculum Policies in Brazil: Possibilities of Wordsmith Tools
Creators: name: Craveiro, Clarissa
name: Aguiar, Felipe
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2017

description: Aspiring to contribute with research in the field of Curriculum, this article aims to make public the studies made with a big amount of curricular documents and the building of Corpus de Documentos Curriculares, a work that is present throughout the article. The text follows showing reasons to adhere to the use of such technology through a research on teachers’ education, presenting the software Wordsmith Tools that allows researchers to amplify the scope of their studies beyond a traditional reading, offering new possibilities of comparison and organization of the material. It indicates, still, possibilities yet underexplored of uses of these digital tools, and their possible contributions to the field of Curriculum and Education. In the end, it is highlighted the use of Corpus de Documentos Curriculares as a reference corpus in the field of Curriculum, a corpus of large size that is available to researchers.
description: TCI (Transnational Curriculum Inquiry), Vol. 13 No. 2 (2016): Curriculum: Different Questions, Different Translations
ICT Assessment in Teaching: Suggested Indicators for Brazilian and Portuguese Teachers
Creators: name: Alcântara, Caio M. G.
name: Linhares, Ronaldo Nunes
name: Ramos, Fernando
name: Loureiro, Maria José
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2017

description: When analyzing the assessment indicators used by international institutions such as UNESCO and OEI/Telefônica, about the presence of ICT in education, we realize that the quantitative dimension is privileged when it comes to software, hardware, as well as the existence of internet network in schools. This paper presents a set of indicators to evaluate the use of ICT chosen by teachers from Brazil and Portugal who took part in programs related to the use of ICT in their countries in recent years (Magellan/Portugal and PROUCA/Brazil). The choice of these indicators is the result of a research developed with teachers who works in the first phase of elementary school, in Aveiro and surrounding areas in Portugal and the State of Sergipe in Brazil. From interviews with these teachers, one questionnaire was built presenting a set of indicators to be chosen as relevant to evaluate the use of ICT in teaching pratices.
description: TCI (Transnational Curriculum Inquiry), Vol. 13 No. 2 (2016): Curriculum: Different Questions, Different Translations
Taxation of unhealthy food consumption and the intensive versus extensive margin of obesity
Creators: name: Kalamov, Zarko Y.
name: Runkel, Marco
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 330 Wirtschaft
subject: sin tax
subject: paternalism
subject: obesity
subject: extensive versus intensive margin

description: If an individual’s health costs are U-shaped in weight with a minimum at some healthy level and if the individual has both self-control problems and rational motives for over- or underweight, the optimal paternalistic tax on calorie intake mitigates the individual’s weight problem (intensive margin), but does not induce the individual to choose healthy weight (extensive margin). Implementing healthy weight by a calorie tax is not only inferior to paternalistic taxation, but may even be worse than not taxing the individual at all. With heterogeneous individuals, the optimal uniform paternalistic tax may have the negative side effect of reducing calorie intake of the under- and normal weights. We confirm these theoretical insights by an empirical calibration to US adults.
Understanding the Process of Internationalization of Curriculum Studies in China: a Case Study
Creators: name: Hoyt, Mei Wu
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2016

description: The movement to internationalize curriculum studies has initiated complicated worldwide conversations incorporating different nations, intellectual histories, and diversified curriculum visions. However, questions remain regarding how internationalization works in different contexts, what the goals are of such work, and in what ways it might influence the formalization of the field. How local intellectuals’ research on this topic serves to constitute and function in the process of internationalization is an area requiring further study. In examining the vanguard work of a curriculum studies center in China, this qualitative research seeks to understand the forces that drive internationalization in China, and how Chinese curriculum scholars function with, through, and around the process of “complicated conversation.” This research demonstrated that political forces, social realities, and education intellectuals are the primary subjects mobilizing and sustaining the internationalization of curriculum studies, traditional Chinese culture and wisdom serve as the foundation for equal dialogue with the international community, and the nature of the internationalization process appears to be unbounded and democratic. 课程国际化进程已促使不同国家间,不同智识传统间展开了“复杂对话”并且成就了不同的课程观。 然而,在不同的环境下,国际化工作如何进行,他们的希冀如何,又会走向何方,这些国际化工作又是怎样影响课程领域的发展还不明朗。本土的智识传统在国际化进程中的作用是什么值得进一步探索。在对中国的一个课程研究前沿中心的调研中,这个质性研究试图理解在中国有什么样的力量推动课程国际化,他们又是怎样在课程国际化历程中围绕“复杂对话”与国际上的智识来展开合作与对话。研究表明,政治力量、社会现实、和教育知识分子促进着中国的课程国际化,中国传统智识被认为是开展国际对话的根本,课程国际化的历程本身体现灵活多元而又民主的。
description: TCI (Transnational Curriculum Inquiry), Vol. 13 No. 1 (2016): What are we meaning by Curriculum?
Description of the isotope chain $^{180-196}$Pt within some solvable approaches
Creators: name: Raduta, A. A.
name: Buganu, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Energies of the ground, $β$ and $γ$ bands as well as the associated B(E2) values are determined for each even-even isotope of the $^{180-196}$Pt chain by the exact solutions of some differential equations which approximate the generalized Bohr-Mottelson Hamiltonian. The emerging approaches are called the Sextic and Spheroidal Approach (SSA), the Sextic and Mathieu Approach (SMA), the Infinite Square Well and Spheroidal Approach (ISWSA) and the Infinite Square Well and Mathieu Approach (ISWMA), respectively. While the first three methods were formulated in some earlier papers of the present authors, ISWMA is an inedited approach of this work. Numerical results are compared with those obtained with the so called X(5) and Z(5) models. A contour plot for the probability density as function of the intrinsic dynamic deformations is given for a few states of the three considered bands with the aim of evidencing the shape evolution along the isotope chain and pointing out possible shape coexistence.
description: 18 pages, 1 figure
The Power of Affections in the Curriculum Discursive Practices: Possibilities of the Development of a Relationship-Curriculum
Creators: name: Carvalho, Janete Magalhães
name: Da Silva, Sandra Kretli
name: Delboni, Tânia Mara Zanotti Guerra Frizzera
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2016

description: Linked with the research called “School everyday life as community of affects/affections in its conversations and images: culture, curriculum and teacher training”, carried out in an elementary public school from Vitoria, Brazil, the result aimed to bring closer the ethics from affections from Spinoza with Foucault’s existence aesthetics, thinking – through encounters lived by teachers and students in school everyday life – a curriculum beyond the materialized by curriculum based mainly in programs guidelines. The methodology used was the mapping of networks of conversations established in school everyday life. The study point that, when teachers and students bring experience to school life, they create the possibility of relying on life relations woven from different lines that connect to one another, creating other possible areas for curriculum. Conversation networks understood as networks of discursive practices concerning to different relations are powerful for the creating of knowledge as the most powerful of the affections, in which the event is considered as an effect of body encounters, another possibility for us to think school curriculum as relationship curriculum.
description: TCI (Transnational Curriculum Inquiry), Vol. 13 No. 1 (2016): What are we meaning by Curriculum?
Trajectories without quantum uncertainties
Creators: name: Polzik, Eugene S.
name: Hammerer, Klemens
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A common knowledge suggests that trajectories of particles in quantum mechanics always have quantum uncertainties. These quantum uncertainties set by the Heisenberg uncertainty principle limit precision of measurements of fields and forces, and ultimately give rise to the standard quantum limit in metrology. With the rapid developments of sensitivity of measurements these limits have been approached in various types of measurements including measurements of fields and acceleration. Here we show that a quantum trajectory of one system measured relatively to the other "reference system" with an effective negative mass can be quantum uncertainty--free. The method crucially relies on the generation of an Einstein-Podolsky-Rosen entangled state of two objects, one of which has an effective negative mass. From a practical perspective these ideas open the way towards force and acceleration measurements at new levels of sensitivity far below the standard quantum limit.
description: Submitted to the special issue "Quantum and Hybrid Mechanical Systems - From Fundamentals to Applications" in Annalen der Physik