cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dynamic resistance and total loss in small REBCO pancake and racetrack coils carrying DC currents under an AC magnetic field
Creators: name: Sun, Yueming
name: You, S
name: Badcock, Rodney
name: Long, Nicholas
name: Jiang, Zhenan
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2024
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences
classificationCode: 40
subject: Engineering
classificationCode: 5104
subject: Condensed matter physics
classificationCode: 4009
subject: Electronics, sensors and digital hardware
classificationCode: 4008
subject: Electrical engineering
classificationCode: 4016
subject: Materials engineering
subject: FOS: Materials engineering

description: In many high-temperature superconducting applications, REBCO (Rare-earth barium copper oxide) coils carry DC currents under AC magnetic fields, such as the field winding of rotating machines, linear synchronous motors and the electro-dynamic suspension system of maglev. In such operating conditions, REBCO coils generate AC loss—total loss which includes the magnetization loss due to the shielding currents, and the dynamic loss arising from dynamic resistance caused by the interaction of DC currents and AC magnetic fields. In this work, dynamic resistance and total loss in a small double pancake coil (DPC) and a small double racetrack coil (DRC) are investigated via experiments in the temperature range between 77 K and 65 K. The DC currents are varied from zero to 70% of the self-field critical currents of the REBCO coils, with AC magnetic fields up to 100 mT. The experimental results in the DPC are well supported by the finite element simulation results using 3D T-A formulation. Our results show that the critical current of the DRC is approximately 2%-5% higher than that of the DPC in the temperature range. For given experimental conditions, the magnetization loss in both coils is much greater than the dynamic loss. The dynamic loss and magnetization loss in the DRC are greater than those in the DPC, which we attribute to the large perpendicular magnetic field component in the straight sections of the DRC.
El Currículo Decolonial-Hispanófono
Creators: name: Jupp, James C.
name: Delgado, Micaela González
name: Berumen, Freyca Calderón
name: Hesse, Caroline
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2020

description: En nuestro ensayo, avanzamos un bosquejo preliminar del currículo decolonial-hispanófono y extendemos una invitación al diálogo Sur-Sur entre alumnos, docentes, o activistas-educadores de distintas tradiciones intelectuales de las geo-regiones denominadas «las Américas». Después de compartir unas definiciones, planteamos la problemática del trabajo curricular-pedagógico dentro de las colonias históricas y la colonialidad presente. Planteado de esta manera, proporcionamos un bosquejo preliminar del currículo decolonial-hispanófono como una dimensión de un proyecto decolonial transnacional, contextual, y relacional. A base del bosquejo, teorizamos tres conceptos historizados emergentes: (a) la historicidad del pensamiento decolonial, (b) la conceptualización mestiza, y (c) la comunalidad/pluriversalidad. Concluimos el ensayo con una invitación al diálogo transnacional Sur-Sur. Términos claves: colonialidad, currículo decolonial, pedagogía decolonial, teoría curricular itinerante.
description: TCI (Transnational Curriculum Inquiry), Vol. 17 No. 1 (2020): Curriculum and Displaced Borders
Strong neutrino cooling by cycles of electron capture and $β^-$ decay in neutron star crusts
Creators: name: Schatz, Hendrik
name: Gupta, Sanjib
name: Möller, Peter
name: Beard, Mary
name: Brown, Edward F.
name: Deibel, Alex T.
name: Gasques, Leandro R.
name: Hix, William Raphael
name: Keek, Laurens
name: Lau, Rita
name: Steiner, Andrew W.
name: Wiescher, Michael
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The temperature in the crust of an accreting neutron star, which comprises its outermost kilometer, is set by heating from nuclear reactions at large densities, neutrino cooling, and heat transport from the interior. The heated crust has been thought to affect observable phenomena at shallower depths, such as thermonuclear bursts in the accreted envelope. Here we report that cycles of electron capture and its inverse, $β^-$ decay, involving neutron-rich nuclei at a typical depth of about 150 m, cool the outer neutron star crust by emitting neutrinos while also thermally decoupling the surface layers from the deeper crust. This Urca mechanism has been studied in the context of white dwarfs and Type Ia supernovae, but hitherto was not considered in neutron stars, because previous models computed the crust reactions using a zero-temperature approximation and assumed that only a single nuclear species was present at any given depth. This thermal decoupling means that X-ray bursts and other surface phenomena are largely independent of the strength of deep crustal heating. The unexpectedly short recurrence times, of the order of years, observed for very energetic thermonuclear superbursts are therefore not an indicator of a hot crust, but may point instead to an unknown local heating mechanism near the neutron star surface.
description: 15 pages with 5 figures. Nature advance online publication, December 1, 2013
title: The magnitude-frequency distributions of earthquakes in the greater New Zealand region and along the Hikurangi–Kermadec and Puysegur subduction zones, and their uncertainties, with application to the 2022 New Zealand National Seismic Hazard Model
Creators: name: Rollins, Chris
name: Rhoades, David A.
name: Rastin, Sepideh J.
name: Gerstenberger, Matt C.
name: Christophersen, Annemarie
name: Thingbaijam, Kiran K. S.
name: Van Dissen, Russ J.
name: Graham, Kenny M.
name: Fraser, J.
Publisher: name: GNS Science
Year: 2022

description: For use in the Seismicity Rate Model (SRM) component of the 2022 New Zealand National Seismic Hazard Model, we estimate the total magnitude-frequency distribution (MFD) of earthquakes in the greater New Zealand region and along the Hikurangi–Kermadec and Puysegur subduction zones. The former is a key input into multiple components of the SRM in the onshore and near-shore regions, while the latter is a key input into models of earthquake rupture rates on the subduction zones. In the SRM, the MFDs are parametrised by a b-value (which describes the relative rates of small and large earthquakes) and by the annual rate of M ≥5 earthquakes, here called the N-value. To estimate these parameters and their uncertainties in the above settings, we use a variant of the New Zealand earthquake catalogue that includes improved depth information, focal mechanisms and complete coverage of the Hikurangi–Kermadec region, among other features. Adapting an approach used previously in California, we estimate the MFD of earthquakes in the near-shore region incorporating data back to 1843, balanced with the better data in the more recent part of the instrumental catalogue. This method estimates both the mean earthquake rate and its uncertainty, and we supplement it with an alternative estimate of the rate uncertainty that is based on the rate variability in the catalogue over a range of shorter timespans. We estimate the MFDs on the Hikurangi–Kermadec and Puysegur subduction zones using a simplified version of the method used in the near-shore region, with more recent data. Finally, we describe a globally based method to estimate the potential earthquake rate uncertainty on the Hikurangi–Kermadec subduction zone. (The authors)
(Re)Imagining the Responsible, National Citizen
Creators: name: Idrissi, Hajar
name: Benabderrazik, Youssef
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2020

description: Citizenship education in compulsory schooling plays a critical role in the level of engagement and abilities of young people to assume basic civic roles. Both internationally and nationally, there are increasing calls to reconsider the dominant approaches to citizenship education in order to address the pressing needs of the interdependent and interconnected 21st century global world. This paper analyzes citizenship education in the context of Morocco, considering whether, how and to what extent citizenship education in Morocco’s primary school social studies curriculum addresses themes of human rights; democracy and civic participation; and national and global citizenship. Qualitative data is generated from a sample of 4th, 5th and 6th grade social studies textbooks targeting students aged 9-12. The results indicate that citizenship education offers rather limited content and activities for students to improve their competencies for global learning, political literacy, respect for diversity, and critical thinking, suggesting the challenge in (re)imagining the construction of the predominant responsible, national Moroccan citizen. Keywords: Social studies textbooks, Education for citizenship, Human rights, Global citizenship, Morocco.
description: TCI (Transnational Curriculum Inquiry), Vol. 17 No. 1 (2020): Curriculum and Displaced Borders
Toward Decolonizing the Black and White A’nger cloth
Creators: name: Oguanobi, Hembadoon Iyortyer
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2020

description: This paper uses the a’nger cloth, a traditional cloth belonging to the Tiv tribe of Benue, Nigeria as a metaphor for framing autoethnographical narratives and undertakings. Through storying and poetizing about lived experiences, culture, migration tales, identity, gender, marginalization, race and silence, stories emerge as praxis for decolonizing the curriculum. As a non-Western feminist, diasporic academic living in Ottawa, Canada, on unceded Algonquin territory, how might I navigate the changing and uncertain spaces of belonging? Through the a'nger cloth, I find ways of sharing generational family stories through poetry. These stories invite alternative and inclusive spaces into the classroom that welcome “other” ways of being and knowing. Key-words: decolonising the curriculum; narratives; spaces.
description: TCI (Transnational Curriculum Inquiry), Vol. 17 No. 1 (2020): Curriculum and Displaced Borders
title: Developing mental and physical wellness for looked after young people through a fitness and nutritional guidance programme : a pilot study
Creators: name: Fitzgerald, N.
name: Aherne, C.
name: Gaynor, D.
name: Sheppard, A.
name: Gargan, I.
Publisher: name: Strathprints - University of Strathclyde
Year: 2014

description: This pilot study aimed to explore the suitability of a fitness and nutritional guidance programme (FNGP) for looked after young people and examine changes in physical fitness and mental wellness levels. Fourteen looked after young people took part in a nine-month long FNGP. Reflective feedback was obtained from the therapists and attendance was monitored to examine suitability. Fitness (i.e. body mass index, resting heart rate, lung capacity, aerobic capacity, lower body strength, flexibility) and wellness (i.e. physical indicators of anger, depression, stress and tension) levels were measured at four time points using Fitech V5 Wellness Software. The key strengths of programme were its accessibility for looked after young people, their positive interaction with the fitness therapists and their activity engagement. Attendance rates were high, with 13 participants attending at least one physical activity session per week for nine months. Repeated measures analysis of covariance revealed significant positive changes in the participants' fitness and wellness levels across the nine month period when controlling for alcohol consumption and smoking status. Results provide tentative support for the application of suitable FNGPs for looked after young people. The value of activity engagement for looked after young people in residential care and its effects on health and wellbeing are discussed.
Data3
Creators: name: Ermilov, Alexander Anatol
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 461103
subject: Deep learning
classificationCode: 460306
subject: Image processing

description: This folder includes the images prepared during annotation, and the resulting images published in the article. It also contains the raw images in each case. The raw underwater videos from which the images were taken are also included.
Toward an Understanding of Attunement as an Autobiographical Theory of Education
Creators: name: Wang, Wanying
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2020

description: I explore the concept of attunement in this paper. Informed by my own story and other scholarly work, attunement in this paper is employed to describe an autobiographical theory of education. In such an autobiographical theory of education learning becomes situated not only in the school-subject and specific prior knowledge, but also in one’s subjective sense of intellectual labor. Basically, this paper comprises two sections. In the first I elucidate my understanding of the concept of attunement. Attunement, in this paper, refers to learning guided and experienced by oneself subjectively striving for deeper understanding, during which one searches for meaning as well as begets one’s engagement with the world. In the second, I describe that attunement has three elements: contingency, boundary and sensitivity. Contingency emphasizes the particularity of experience, identified from one’s own perspective; boundary refers to the challenges and difficulties experienced by oneself; sensitivity underscores how one can go beyond one’s boundary subjectively, thus being attuned to new forms of understanding or thinking. Key-words: attunement, contingency, sensitivity, awakening inwardness
description: TCI (Transnational Curriculum Inquiry), Vol. 17 No. 1 (2020): Curriculum and Displaced Borders
A Minty variational principle for set optimization
Creators: name: Crespi, Giovanni P.
name: Hamel, Andreas H.
name: Schrage, Carola
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 49J53

description: Extremal problems are studied involving an objective function with values in (order) complete lattices of sets generated by so called set relations. Contrary to the popular paradigm in vector optimization, the solution concept for such problems, introduced by F. Heyde and A. Löhne, comprises the attainment of the infimum as well as a minimality property. The main result is a Minty type variational inequality for set optimization problems which provides a sufficient optimality condition under lower semicontinuity assumptions and a necessary condition under appropriate generalized convexity assumptions. The variational inequality is based on a new Dini directional derivative for set-valued functions which is defined in terms of a "lattice difference quotient": A residual operation in a lattice of sets replaces the inverse addition in linear spaces. Relationships to families of scalar problems are pointed out and used for proofs: The appearance of improper scalarizations poses a major difficulty which is dealt with by extending known scalar results such as Diewert's theorem to improper functions.
Curriculum and Displaced Borders
Creators: name: Lopes, Alice Casimiro
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2020

description: In a world where the borders among nations are increasingly displaced, where the very senses of nation, belonging, identity are questioned every day, the curriculum takes on new challenges. Keywords: curriculum; identity.
description: TCI (Transnational Curriculum Inquiry), Vol. 17 No. 1 (2020): Curriculum and Displaced Borders
Dynamic resistance and voltage response of a REBCO bifilar stack under perpendicular DC-biased AC magnetic fields
Creators: name: Sun, Yueming
name: Geng, J
name: Badcock, Rodney
name: Jiang, Zhenan
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2024
Subjects: classificationCode: 4016
subject: Materials engineering
subject: FOS: Materials engineering
classificationCode: 40
subject: Engineering
classificationCode: 5104
subject: Condensed matter physics

description: The dynamic resistance of REBCO (REBa2Cu3O7-d, RE stands for rare earth), coated conductors (CCs) is a key parameter in many high-temperature superconductor applications where CCs carry DC currents exposed to AC and DC magnetic fields, such as field-triggered persistent current switches, flux pumps, and fault current limiters. In this work, dynamic resistance and dynamic voltage have been studied via experiments and finite element method (FEM) simulations in a REBCO bifilar stack at 77 K, under combined AC and DC magnetic fields with different magnitudes, frequencies, and waveforms. Our results show some distinct features of dynamic resistance and voltage from those under pure AC magnetic fields. With an increasing DC magnetic field, the dynamic resistance exhibits an obvious linearity with the applied AC magnetic field, and becomes less dependent on the AC field frequency. The fundamental frequency of the dynamic voltage under a DC magnetic field becomes the same as that of the applied AC field, which completely differs from the pure AC field case where the fundamental frequency doubles. For the first time, instantaneous threshold field (B th) values are obtained from the dynamic voltage, which are substantially different in the field-increasing and field-decreasing processes. These key differences are attributed to the dominant role of DC magnetic fields in determining the critical current of the superconductor, which significantly dwarfs the influence of AC fields. These new discoveries may help researchers better understand the electromagnetism of superconductors and be useful for relevant applications.
Curriculum in International Contexts
Creators: name: Costa, Hugo Heleno Camilo
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2020

description: Review of the book: KUMAR, A. (2019). Curriculum in international contexts: understanding colonial, ideological and neoliberal influences. Palgrave Macmillan: New York. Keywords: context; neoliberalism; trajectory.
description: TCI (Transnational Curriculum Inquiry), Vol. 17 No. 1 (2020): Curriculum and Displaced Borders
Breathing Life into the Territorial Acknowledgement
Creators: name: Janzen, Melanie
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2019

description: The author re-visits the significance of the territorial acknowledgment (of living on the original lands of Indigenous peoples) in teaching, autobiographically probing meanings that can breathe life into acts of acknowledging. Key-words: Indigenous peoples; teaching; territorial acknowledgment.
description: TCI (Transnational Curriculum Inquiry), Vol. 16 No. 2 (2019): We are not Alone - the Subject of Teachers and the Auto/biographical in Curriculum Studies
We are not Alone the Subject of Teachers and the Auto/biographical in Curriculum Studies
Creators: name: Craveiro, Clarissa
name: Strong-Wilson, Teresa
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2019

description: Editorial
description: TCI (Transnational Curriculum Inquiry), Vol. 16 No. 2 (2019): We are not Alone - the Subject of Teachers and the Auto/biographical in Curriculum Studies
Weibel, Firehose and Mirror mode Relations
Creators: name: Treumann, R. A.
name: Baumjohann, W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Space Physics (physics.space-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Excitation of Weibel magnetic fields in an initially non-magnetized though anisotropic plasma may trigger other low-frequency instabilities fed by pressure anisotropy. It is shown that under Weibel-like-stable conditions the Weibel-like thermal fluctuation magnetic field allows for restricted Firehose-mode growth. In addition, low frequency Whistlers can also propagate in the plasma under certain anisotropic conditions. When the Weibel-like mode becomes unstable, Firehose instability ceases but Mirror modes take over. This will cause bubble structures in the Weibel-like field in addition to filamentation.
description: 6 pages, no figures, in press
Simple metal and binary alloy phases based on the hcp structure: electronic origin of distortions and superlattices
Creators: name: Degtyareva, Valentina F
name: Afonikova, Nataliya S
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Crystal structures of simple metals and binary alloy phases based on the close-packed hexagonal structure are analyzed within the model of Fermi sphere-Brillouin zone interactions to understand distortions and superlattices. Examination of the Brillouin-Jones configuration in relation to the nearly-free electron Fermi sphere for several representative phases reveals significance of the electron energy contribution to the phase stability. This approach may be useful for understanding high pressure structures recently found in compressed simple alkali and alkali-earth metals.
description: 10 pages, 2 figures
Numerical simulation on AC loss in REBCO tapes carrying non-sinusoidal currents
Creators: name: Uejima, K
name: Sun, Yueming
name: Miyagi, D
name: Glowacki, Jakub
name: Long, Nicholas
name: Jiang, Zhenan
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2024
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences
classificationCode: 5104
subject: Condensed matter physics

description: AC loss is one of the greatest obstacles for high-temperature superconducting (HTS) applications. In some HTS applications, coated conductors carry non-sinusoidal currents. Thus, it is important to investigate the effect of various waveforms on AC loss in coated conductors. In this work, transport AC loss in a 4 mm - wide REBCO coated conductor carrying sinusoidal and non-sinusoidal currents, is numerically investigated. The current amplitudes, the frequency of the transport current, and n-value are varied. Non-sinusoidal transport current waveforms studied include square, five types of trapezoidal, and triangular waveforms. Simulated results show that, for a given current amplitude, AC loss for the square current waveform is the greatest, that for the triangular waveform is the smallest. The sequence of AC loss in the conductor for different current waveforms coincides with the penetration depth, which implies the penetration depth determines the AC loss of the coated conductor. Furthermore, the transport AC loss in the conductor was found to decrease with frequency as f-2/n for non-sinusoidal transport current.
Numerical Simulation on AC Loss in REBCO Stacks and Coils Carrying Non-Sinusoidal Currents
Creators: name: Uejima, K
name: Sun, Yueming
name: Miyagi, D
name: Glowacki, Jakub
name: Long, Nicholas
name: Jiang, Zhenan
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2024
Subjects: classificationCode: 40
subject: Engineering
classificationCode: 5104
subject: Condensed matter physics
classificationCode: 4008
subject: Electrical engineering

description: AC loss is a critical issue for high-temperature superconducting (HTS) applications. Earlier studies have focused on ac loss in HTS conductors carrying sinusoidal currents. However, HTS conductors in some applications carry non-sinusoidal currents, and hence it is essential to study ac loss under those conditions. This study presents simulated ac loss of a REBCO stack and coil winding carrying currents with square, trapezoidal, and triangular waveforms. The simulation method is based on the T-A formulation implemented in COMSOL Multiphysics 6.0. AC loss dependence on frequency and n-value is also investigated. The simulation results show ac loss varies with current waveforms for both the stack and coil winding - loss magnitude is largest under square waveform, followed by trapezoidal, sinusoidal, and triangular waveform. Surprisingly, ac loss of the stack decreases with increasing frequency as f-2/n, while f-1/n for the coil winding. The difference between the ac loss values in the stack and coil winding under different current waveforms becomes smaller with increasing n-value. With an infinitely large n-value, the difference in the ac loss values for all different waveforms may disappear, as the critical state model suggests.
Measuring entanglement of photons produced by a pulsed source
Creators: name: Agüero, Mónica B.
name: Hnilo, Alejandro A.
name: Kovalsky, Marcelo G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A pulsed source of entangled photons is desirable for some applications. Yet, such a source has intrinsic problems arising from the simultaneous arrival of the signal and noise photons to the detectors. These problems are analyzed and practical methods to calculate the number of accidental (or spurious) coincidences are described in detail, and experimentally checked, for the different regimes of interest. The results are useful not only to measure entanglement, but to all the situations where extracting the number of valid coincidences from noisy data is required. As an example of the use of those methods, we present the time-resolved measurement of the Concurrence of the field produced by spontaneous parametric down conversion with pump pulses of duration in the ns-range at a repetition of kHz. The predicted discontinuous evolution of the entanglement at the edges of the pump pulse is observed.
description: 9 pages, 10 or 7 figures (one of the figures includes 4), 28 Refernces
A Fourier analysis of extreme events
Creators: name: Mikosch, Thomas
name: Zhao, Yuwei
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: The extremogram is an asymptotic correlogram for extreme events constructed from a regularly varying stationary sequence. In this paper, we define a frequency domain analog of the correlogram: a periodogram generated from a suitable sequence of indicator functions of rare events. We derive basic properties of the periodogram such as the asymptotic independence at the Fourier frequencies and use this property to show that weighted versions of the periodogram are consistent estimators of a spectral density derived from the extremogram.
description: Published in at http://dx.doi.org/10.3150/13-BEJ507 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
A Place to Think
Creators: name: Saada, Jessica
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2019

description: The paper provokes us to inquire into who is teaching and researching teaching. Key-words: autobiographical research; curriculum-as-lived; heuristic inquiry.
description: TCI (Transnational Curriculum Inquiry), Vol. 16 No. 2 (2019): We are not Alone - the Subject of Teachers and the Auto/biographical in Curriculum Studies
Emission spectrum of the atomic chain excited by channeled particle
Creators: name: Epp, V.
name: Sosedova, M. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Basic properties of radiation of the atomic chains excited by a channeled particle are considered. Using a very simple two-dimensional model of a crystal lattice we have shown that the main part of this radiation is generated on the frequency of oscillations of a channeled particle between the crystal planes, shifted by the Doppler effect. Spectral and angular distribution and spectral distribution of the radiation of the atomic chain excited by channeled particle were calculated. Emission spectrum of the atomic chain excited by channeled particle was plotted.
Oral health practices and self-reported adverse effects of E-cigarette use among dental students in 11 countries: an online survey
Creators: name: Alhajj, Mohammed Nasser
Publisher: name: figshare
Year: 2022
Subjects: subject: 110505 Oral Medicine and Pathology
subject: FOS: Clinical medicine
subject: 110599 Dentistry not elsewhere classified

description: Abstract Objectives E-cigarette use has become popular, particularly among the youth. Its use is associated with harmful general and oral health consequences. This survey aimed to assess self-reported oral hygiene practices, oral and general health events, and changes in physiological functions (including physical status, smell, taste, breathing, appetite, etc.) due to E-cigarette use among dental students. Methods This online, multicounty survey involved undergraduate dental students from 20 dental schools across 11 different countries. The questionnaire included demographic characteristics, E-cigarette practices, self-reported complaints, and associated physiological changes due to E-cigarette smoking. Data were descriptively presented as frequencies and percentages. A Chi-square test was used to assess the potential associations between the study group and sub-groups with the different factors. Statistical analysis was performed using SPSS at P < 0.05. Results Most respondents reported regular brushing of their teeth, whereas only 70% used additional oral hygiene aids. Reported frequencies of complaints ranged from as low as 3.3% for tongue inflammation to as high as 53.3% for headache, with significant differences between E-cigarette users and non-users. Compared to non-smokers, E-cigarette users reported significantly higher prevalence of dry mouth (33.1% vs. 23.4%; P < 0.001), black tongue (5.9% vs. 2.8%; P = 0.002), and heart palpitation (26.3%% vs. 22.8%; P = 0.001). Although two-thirds of the sample reported no change in their physiological functions, E-cigarette users reported significant improvement in their physiological functions compared to never smokers or tobacco users. Conclusion Dental students showed good oral hygiene practices, but E-cigarette users showed a higher prevalence of health complications.
We Were Taught to Colonize with Literature
Creators: name: Bausell, Sarah Byrne
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2019

description: In this paper, the author invokes autobiography (a genre she typically uses with students and teachers) to instead listen critically to the power dynamics in her own practice as a humanities teacher/teacher educator. Key-words: literature; autobiography; teacher education.
description: TCI (Transnational Curriculum Inquiry), Vol. 16 No. 2 (2019): We are not Alone - the Subject of Teachers and the Auto/biographical in Curriculum Studies
JRC: Deepfake detection via joint reconstruction and classification
Creators: name: Yan, Bosheng
name: Li, Chang-Tsun
name: Lu, Xuequan
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 40
subject: Engineering
classificationCode: 46
subject: Information and computing sciences
classificationCode: 52
subject: Psychology
subject: FOS: Psychology
classificationCode: 4611
subject: Machine learning

description: Deep learning has enabled realistic face manipulation for malicious purposes (e.g., deepfakes), which poses significant concerns over the integrity of the media in circulation. Most existing deep learning techniques for deepfake detection can achieve promising performance in the intra-dataset evaluation setting, but are unable to perform satisfactorily in the inter-dataset evaluation setting. Most previous methods use a backbone network to extract global features for making predictions and only employ binary supervision to train the network. Classification merely based on the learning of global features often leads to weak generalizability to deepfakes of unseen manipulation methods. In this paper, we design a two-branch Convolutional AutoEncoder (CAE), which considers the reconstruction and classification tasks simultaneously for deepfake detection. This Joint Reconstruction and Classification (JRC) method shares the information learned by one task with the other, each focusing on different aspects, and hence boosts the overall performance. JRC is end-to-end, and experiments demonstrate that it achieves state-of-the-art performance on three commonly-used datasets, particularly in the cross-dataset evaluation setting.
Analysis of polarity
Creators: name: Artstein-Avidan, Shiri
name: Rubinstein, Yanir A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: We develop a differential theory for the polarity transform parallel to that for the Legendre transform, which is applicable when the functions studied are "geometric convex", namely convex, non-negative and vanish at the origin. This analysis may be used to solve a family of first order equations reminiscent of Hamilton--Jacobi and conservation law equations, as well as some second order Monge-Ampere type equations. A special case of the latter, that we refer to as the homogeneous polar Monge--Ampere equation, gives rise to a canonical method of interpolating between convex functions.
Autobiography and Discourse Theory
Creators: name: Craveiro, Clarissa
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2019

description: In this article, the author proposes a critical dialogue between Discourse Theory and autobiography as discourse, using "currere" with teachers to deconstruct hegemonic curriculum discourses. Key-words: autobiography; discourse theory; currere; teacher education.
description: TCI (Transnational Curriculum Inquiry), Vol. 16 No. 2 (2019): We are not Alone - the Subject of Teachers and the Auto/biographical in Curriculum Studies
Experiments in Creative Remembering
Creators: name: Lewkowich, David
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2019

description: This paper explores the psychoanalytical meanings of remembering, invoking anamnesis - a reaching back into forgotten knowledge - as a lens through which to interpret novice secondary teachers’ (adolescent) memories and drawings. Key-words: experiment; drawing; teacher education.
description: TCI (Transnational Curriculum Inquiry), Vol. 16 No. 2 (2019): We are not Alone - the Subject of Teachers and the Auto/biographical in Curriculum Studies
title: Bridging the divide between education and social work in order to improve the prospects of looked after children
Creators: name: Halvorsen, Terje
Publisher: name: Strathprints - University of Strathclyde
Year: 2014

description: In the same period that British researchers have revealed a lack of effort to promote looked after children's ability to cope with academic challenges, extensive and efficient methodologies have been worked out within the field of education. The first part of this article presents some of the research findings on the child welfare system. The second part describes relevant educational methodologies. The concluding section proposes that the methods described in Part Two should be implemented in the field of child welfare. Educational failure predicts both problems in care placement and severe social problems later in life. Despite improvement in the child welfare system in recent years, looked after children are still at high risk of educational failure. Effective educational methodologies exist, but are seldom applied by child welfare professionals. The author argues that the spectrum of tasks in social work should be enlarged. The social worker's competence and responsibility should include promoting looked after children's cognitive development and educational achievement.
Metallic magnetism at finite temperatures studied by relativistic disordered moment description: Theory and applications
Creators: name: Deák, A.
name: Simon, E.
name: Balogh, L.
name: Szunyogh, L.
name: Dias, M. dos Santos
name: Staunton, J. B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We develop a self-consistent relativistic disordered local moment (RDLM) scheme aimed at describing finite temperature magnetism of itinerant metals from first principles. Our implementation in terms of the Korringa--Kohn--Rostoker multiple scattering theory and the coherent potential approximation allows to relate the orientational distribution of the spins to the electronic structure, thus a self-consistent treatment of the distribution is possible. We present applications for bulk bcc Fe, L1$_0$-FePt and FeRh ordered in the CsCl structure. The calculations for Fe show significant variation of the local moments with temperature, whereas according to the mean field treatment of the spin fluctuations the Curie temperature is overestimated. The magnetic anisotropy of FePt alloys is found to depend strongly on intermixing between nominally Fe and Pt layers, and it shows a power-law behavior as a function of magnetization for a broad range of chemical disorder. In case of FeRh we construct a lattice constant vs. temperature phase diagram and determine the phaseline of metamagnetic transitions based on self-consistent RDLM free energy curves.
description: 11 pages, 8 figures
The Question of Curriculum in Dark Times
Creators: name: Strong-Wilson, Teresa
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2019

description: In this article, the author looks at the intersections between the life writing of Hannah Arendt and W. G. Sebald as a way to think about teacher auto/biographical writing and acts of discernment in dark times. Key-words: auto/biographical writing; Hanna Arendt; Sebald.
description: TCI (Transnational Curriculum Inquiry), Vol. 16 No. 2 (2019): We are not Alone - the Subject of Teachers and the Auto/biographical in Curriculum Studies
Just Lingering, a Complicated Conversation
Creators: name: Sussekind, Maria Luiza
name: Nascimento, Stephanie
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2019

description: The authors linger over the theoretical implications of a currere/lived experience lens for bringing their Pedagogy/undergraduate students’ self-writing into complicated conversation with democratic education. Key-words: currere; democracy; complicated conversation.
description: TCI (Transnational Curriculum Inquiry), Vol. 16 No. 2 (2019): We are not Alone - the Subject of Teachers and the Auto/biographical in Curriculum Studies
Symmetry fractionalization: Symmetry-protected topological phases of the bond-alternating spin-$1/2$ Heisenberg chain
Creators: name: Haghshenas, R.
name: Langari, A.
name: Rezakhani, A. T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study different phases of the one-dimensional bond-alternating spin-$1/2$ Heisenberg model by using the symmetry fractionalization mechanism. We employ the infinite matrix-product state representation of the ground state (through the infinite-size density matrix renormalization group algorithm) to obtain inequivalent projective representations of the (unbroken) symmetry groups of the model, which are used to identify the different phases. We find that the model exhibits trivial as well as symmetry-protected topological phases. The symmetry-protected topological phases are Haldane phases on even/odd bonds, which are protected by the time-reversal (acting on the spin as $σ\rightarrow-σ$), parity (permutation of the chain about a specific bond), and dihedral ($π$-rotations about a pair of orthogonal axes) symmetries. Additionally, we investigate the phases of the most general two-body bond-alternating spin-$1/2$ model, which respects the time-reversal, parity, and dihedral symmetries, and obtain its corresponding twelve different types of the symmetry-protected topological phases.
description: 9 pages, 5 figures
Autobiography, Aesthetics and Politics
Creators: name: Phelan, Anne M.
name: Clarke, Matthew
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2019

description: The authors explore the synthetical (currere) possibilities of aesthetic encounters to disrupt the instrumentalization of teaching and teachers under a neoliberal, capitalist regime and provoke new ways of seeing, and feeling, political change. Key-words: neoliberalism; currere; political change.
description: TCI (Transnational Curriculum Inquiry), Vol. 16 No. 2 (2019): We are not Alone - the Subject of Teachers and the Auto/biographical in Curriculum Studies
Spatiotemporal coupled-mode theory in dispersive media under a dynamic modulation
Creators: name: Dana, Brenda
name: Lobachinsky, Lilya
name: Bahabad, Alon
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A simple and general formalism for mode coupling by a spatial, temporal or spatiotemporal perturbation in dispersive materials is developed. This formalism can be used for studying various linear and non-linear optical interactions involving a dynamic modulation of the interaction parameters such as non-reciprocal phenomena, time reversal of signals and spatiotemporal quasi phase matching
description: 9 pages
A new method of construction of all sets of mutually unbiased bases for two-qubit systems
Creators: name: Ghiu, Iulia
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Mutually unbiased bases are an important tool in many applications of quantum information theory. We present a new algorithm for finding the mutually unbiased bases for two-qubit systems. We derive a system of four equations in the Galois field GF(4) and show that the solutions of this system are sufficient for obtaining the most general set of mutually unbiased bases. Further, our algorithm is applied to an example and we show that there are three possible solutions of the system of four equations, each solution leading to a different set of mutually unbiased bases.
Curriculum, Context and Otherness
Creators: name: Costa, Hugo Heleno Camilo
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2019

description: In this paper I seek to question the tendency of curriculum policies and theorizations to operate a contextual control logic. I question the recurring assumption of context as something controllable, in which a given world view would find its resonance and productivity in relation to a given subject / otherness. For this, I place, in a first section of the text, the perspective of context in Jacques Derrida's thought, keeping it associated with the ideas of différance, writing and dissemination. In the second section, I focus on how a structural view of context tends to support approaches to knowledge as structuring of practice, understood as exposed to apprehension and coordination. In this sense, I highlight, among traditional and critical works of the curriculum, as well as in fragments of official Brazilian curriculum documents, nuances of readings based on the calculation of what is supposed as practice, context and how knowledge structures and guides it. In a third moment of the text, I put into perspective the idea that practice as a production of knowledge, within the scope of a discursive approach, cannot be read as limited to a particular institution or privileged moment, idealities and teleologies. I conclude by considering that all meaning production is a world intervention / reading practice, meaning production, a movement of hegemonization of a certain focus, it is already production of a context, sustained in the attempt to mention, reference to the other that seeks to control. Key-words: Curriculum Theory, Curriculum policies, Deconstruction.
description: TCI (Transnational Curriculum Inquiry), Vol. 16 No. 1 (2019): Different Curriculum Policies
Magnetism and superconductivity in Sr$_2$VFeAsO$_3$ revealed by $^{75}$As- and $^{51}$V-NMR under elevated pressures
Creators: name: Ueshima, Keiji
name: Han, Fei
name: Zhu, Xiyu
name: Wen, Hai-Hu
name: Kawasaki, Shinji
name: Zheng, Guo-qing
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report $^{75}$As- and $^{51}$V-nuclear magnetic resonance (NMR) measurements on the iron-based superconductor Sr$_2$VFeAsO$_3$ with alternating stacks structure. We find that the $^{75}$As nuclear spin-spin relaxation rate ($1/T_2$) shows a pronounced peak at $T_N$ = 165 K, below which the resonance peak shifts to a higher frequency due to the onset of an internal magnetic field. The $^{51}$V spectrum does not shift, but is broadened below $T_N$. We conclude that the Fe electrons oder antiferromagnetically below $T_N$ with a magnetic moment $m_{Fe}$ $\sim$ 0.4 $μ_B$. Application of external pressure up to 2.4 GPa reduces $T_N$ in a rate of $-$40 K/GPa, and enhances the superconducting transition temperature $T_c$ in a rate of 2 K/GPa. The pressure-temperature phase diagram for Sr$_2$VFeAsO$_3$ shows that superconductivity coexists with antiferromagnetism over a wide pressure range with an unprecedented high $T_c$ up to 36.5 K.
description: 14 pages, 7 figures
Uav Route Planning For Maximum Target Coverage
Creators: name: Karakaya, Murat
Publisher: name: arXiv
Year: 2014
Subjects: subject: Robotics (cs.RO)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Utilization of Unmanned Aerial Vehicles (UAVs) in military and civil operations is getting popular. One of the challenges in effectively tasking these expensive vehicles is planning the flight routes to monitor the targets. In this work, we aim to develop an algorithm which produces routing plans for a limited number of UAVs to cover maximum number of targets considering their flight range. The proposed solution for this practical optimization problem is designed by modifying the Max-Min Ant System (MMAS) algorithm. To evaluate the success of the proposed method, an alternative approach, based on the Nearest Neighbour (NN) heuristic, has been developed as well. The results showed the success of the proposed MMAS method by increasing the number of covered targets compared to the solution based on the NN heuristic.
Curricular Centralization Policy in Brazil
Creators: name: Borges, Veronica
name: Craveiro, Clarissa Bastos
name: Cunha, Viviane Peixoto
Publisher: name: TCI (Transnational Curriculum Inquiry)
Year: 2019

description: This article discusses the possibility of expanding the analysis of the "new paradigm" of "curriculum" hegemonized in the current Brazilian educational policy. Based on post-structural/post-foundational ontological appropriations of the Theory of Discourse (TD) in the field of curriculum, we challenge the defense of an educational project common to all and with projections that set an ideal to be achieved. Refers to those that seek to sustain this paradigm - in a movement to maintain the status quo, as well as those who seek to challenge it - in a movement of dispute for an ideal of emancipatory education capable of promoting social transformation. Gathering texts of academic production between 2014-2018 that has indicated a discursive analysis around the policies of curricular centralization in the Brazilian context. The aim is answering the following questions: How has the policy of curricular centralization been approached by discursive researches? How does the discursive perspective help us to challenge the current hegemonic model of curricular policy without establishing a normative closure? Highlights that the discoursive perspective puts on suspicion of curricular centralization policies and enphatizes the importance of radical political condition in the process of its contestation, with a view to favoring multiple curricular subjectivities based on democracy. Key-words: Discursive Perspective; Curriculum Policy; Curricular Centralization; Academic Researches; Brazilian Policies.
description: TCI (Transnational Curriculum Inquiry), Vol. 16 No. 1 (2019): Different Curriculum Policies