cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
CONSIDERATIONS FOR IMPLEMENTATION OF LITERACY PRACTICES ALIGNED TO READING SCIENCE: PERSPECTIVES OF BIPOC PRINCIPALS
Creators: name: Zuerblis, Heather
Publisher: name: American University
Year: 2023
Subjects: classificationCode: 3902
subject: Education policy, sociology and philosophy
classificationCode: 390304
subject: Primary education
classificationCode: 390407
subject: Inclusive education

description: A majority of fourth grade students in the United States aren’t reading proficiently (NAEP Reading: Reading Results, 2022). Deeper analysis of these assessment data surfaced a large gap between how our education system is serving students of color and their white counterparts. These gaps represent gaps in opportunity as access to quality evidence-based literacy instruction has been lacking throughout the United States. As the recent Science of Reading movement spreads, policies and legislation that mandate the use of evidence-based literacy practices also continue to expand. Many of these policies take aim at increasing teacher content knowledge. Missing from many states’ new literacy legislation is the inclusion of policies that ensure school leaders are equipped with aligned implementation guidance, as well as Reading Science content knowledge. Research is clear that school leaders are essential to change efforts and their effectiveness is linked to student achievement (Grissom et al., 2021). But this begs the question, how can school principals effectively support teachers if they don’t have the knowledge of Reading Science nor aligned implementation guidance? Given the complex nature of implementing a new initiative in a school, this study sought to uncover how school principals who were afforded professional development on the Science of Reading made sense of it, as well as identify the specific decisions and actions they took to support and sustain implementation. Using qualitative methods and a semi structured interview process, nine BIPOC public school principals were interviewed to understand their experiences with implementing Science of Reading approaches. The participant pool was intentionally designed to avoid white dominant thinking and provide space for voices that are often missing in the Science of Reading movement (Milner, 2020). Positionality was reflected on throughout the investigation, with careful attention to race due to the researcher being white. Findings reveal alignment between the study’s implementation framework (Bertram et al., 2015) and the decisions and actions each principal reported, with specific examples cited for each of the framework’s three implementation drivers. The resulting synthesis is captured in the Science of Reading Implementation Tool, or SORI Tool, with the goal of sharing it broadly to support other school leaders who are embarking on similar literacy initiatives. Recommendations for district leaders and members of the Science of Reading community are also discussed.
Kurtosis-limited Sphere Shaping for Nonlinear Interference Noise Reduction in Optical Channels
Creators: name: Gültekin, Yunus Can
name: Alvarado, Alex
name: Vassilieva, Olga
name: Kim, Inwoong
name: Palacharla, Paparao
name: Okonkwo, Chigo
name: Willems, Frans M. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Nonlinear interference (NLI) generated during the propagation of an optical waveform through the fiber depends on the fourth order standardized moment of the channel input distribution, also known as kurtosis. Probabilistically-shaped inputs optimized for the linear Gaussian channel have a Gaussian-like distribution with high kurtosis. For optical channels, this leads to an increase in NLI power and consequently, a decrease in effective signal-to-noise ratio (SNR). In this work, we propose kurtosis-limited enumerative sphere shaping (K-ESS) as an algorithm to generate low-kurtosis shaped inputs. Numerical simulations at a shaping blocklength of 108 amplitudes demonstrate that with K-ESS, it is possible to increase the effective SNRs by 0.4 dB in a single-span single-channel scenario at 400 Gbit/s. K-ESS offers also a twofold decrease in frame error rate with respect to Gaussian-channel-optimal sphere shaping.
description: 11 pages, 16 figures
Acceptance and Applicability of Educational Robots. Evaluating Factors Contributing to a Successful Introduction of Social Robots into Education
Creators: name: Reich-Stiebert, Natalia
Publisher: name: Universität Bielefeld
Year: 2019
Subjects: subject: 150

description: The use of robots in the area of education is rapidly gaining momentum. Education faces restructuring and modernization in the forthcoming age of robots, thus necessitating research meeting the requirements of this development. In this, focusing on robots’ acceptance and applicability in educational contexts, right from the very beginning, is crucial. Therefore, this dissertation thesis has addressed this issue. It has striven to evaluate factors which contribute to a successful introduction of robots into education in a systematic manner. The strengths of the current work lie in its interdisciplinary nature, theoretical fundament, and the application of empirical and experimental methods.

 In practical terms, a set of studies have offered insights on how the implementation and application of robots in education could be facilitated. To do so, they operated on three different levels: First, the focus was on end users’ attitudes toward educational robots. It was shown that their attitudes and willingness to use educational robots were moderate. However, the results also indicated that the acceptance of educational robots could be fostered by the promotion of people’s general technical interest and a targeted use of robots in individual or small-group learning activities, in domains related to science and technology. In addition, it was found that user involvement in an educational robot’s design process can increase people’s general acceptance of educational robots. Second, the work focused on how to effectively design a human-robot interaction (HRI) for learning purposes by building upon the cooperative learning paradigm found in educational literature. Actual HRI experiments confirmed that a robot’s physical presence was beneficial for the learning experience, and implied that positive interdependence with a robot, social support from it, and mutual feedback about the learning process were positively related to the learning experience and the learners’ perception of the robot. Third, when tackling the issue of the ideal educational robot design, it has become clear that people’s perception of robots is influenced by context- and person-specific factors. To trigger a higher acceptance of educational robots, robotics research should match potential end users’ educational robot design concepts, for example, machinelike appearance and functionality as well as privacy and safety requirements.

 Taken together, this dissertation presents a sound basis for identifying issues related to the implementation and application of educational robots. However, research is still far from having completed the development of strategies for implementing and using social robots in education meaningfully. Consequently, potential future research directions will be discussed in light of the obtained results.
Relationships among metalinguistic awareness, cognitive development, verbal abilities and biliteracy in first grade early French immersion students
Creators: name: Hoskyn, Maureen Janet
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of the current study was to investigate the relation of language and cognitive factors to biliteracy development among EFI first grade children. Variables of interest included phonological awareness, print awareness, level of operativity, English/French verbal ability, and influences in the home environment (e.g. socioeconomic status, parent's level of education, time spent on reading activities). A battery of language, cognitive and reading tests was administered in Fall and again in Spring of the first grade to sixty-eight preliterate Anglophone children. A parent questionnaire yielded information pertaining to socioeconomic status, and reading related leizure activities in the home. A teacher questionnaire provided details which described the various classroom environments of the children in the study. Results of correlational analyses indicate that phonological and print awareness both form a significant, positive relationship with French and English reading. Level of operativity and level of English verbal ability did not correlate significant with any measure of reading. The pattern of correlations between French verbal ability tasks and French/English reading was inconsistent. Four of the six French verbal measures correlated significantly, but weakly with French reading and only one measure formed a significant positive correlation with English reading. Analyses of scatterplots which showed the relation of phonological abilities to reading suggest that phonological awareness is a necessary, but not sufficient skill for learning to read. Several children who had mastered a French phonological test could not decode French words; however, there were no children who were good readers who did not score above the sample mean on at least one measure of phonological awareness. Step-wise multiple regression analyses of sample performance on measures of reading and phonological awareness indicate print awareness is the best predictor of reading achievement in French and English. Scores on phonological measures were able to account for residual variance after print awareness had entered the equation. Limitations and implications of the study are discussed and recommendations for further research are presented.
Perturbative power Q^2-corrections to the structure function g(1)
Creators: name: Ermolaev, B. I.
name: Greco, M.
name: Troyan, S. I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We prove that regulating infrared divergencies generates power (~1/(Q^2)^k) corrections to the spin structure function g_1 at small x and large Q^2. At the same time it leads to the corrections ~(Q^2)^k at small Q^2. We present the explicit series of such terms as well as the formulae for their resummation. These contributions are not included in the standard analysis of the experimental data. We argue that accounting for such terms can sizably change the impact of the other power corrections conventionally attributed to the higher twists.
description: Theoretical grounds for our approach are considered in much more detailed way than in the previous version; 10 pages, 2 figures
Towards Guaranteed Safety Assurance of Automated Driving Systems with Scenario Sampling: An Invariant Set Perspective (Extended Version)
Creators: name: Weng, Bowen
name: Capito, Linda
name: Ozguner, Umit
name: Redmill, Keith
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: How many scenarios are sufficient to validate the safe Operational Design Domain (ODD) of an Automated Driving System (ADS) equipped vehicle? Is a more significant number of sampled scenarios guaranteeing a more accurate safety assessment of the ADS? Despite the various empirical success of ADS safety evaluation with scenario sampling in practice, some of the fundamental properties are largely unknown. This paper seeks to remedy this gap by formulating and tackling the scenario sampling safety assurance problem from a set invariance perspective. First, a novel conceptual equivalence is drawn between the scenario sampling safety assurance problem and the data-driven robustly controlled forward invariant set validation and quantification problem. This paper then provides a series of resolution complete and probabilistic complete solutions with finite-sampling analyses for the safety validation problem that authenticates a given ODD. On the other hand, the quantification problem escalates the validation challenge and starts looking for a safe sub-domain of a particular property. This inspires various algorithms that are provably probabilistic incomplete, probabilistic complete but sub-optimal, and asymptotically optimal. Finally, the proposed asymptotically optimal scenario sampling safety quantification algorithm is also empirically demonstrated through simulation experiments.
description: A shorter version of this manuscript has been accepted by the IEEE Transactions on Intelligent Vehicles
Short- and long-term cold storage of jack pine bolts is associated with higher concentrations of monoterpenes and nutrients
Creators: Guevara-Rozo, Sydne
Classens, Gail
Hussain, Altaf
Erbilgin, Nadir
Publisher: name: University of Alberta Library
Year: 2019

Studies with conifer-infesting bark beetles commonly use bolts cut from trees to evaluate the effects of host tree quality on various aspects of insect biology. Yet, whether host quality changes between live trees and bolts cut from these trees has not been assessed. Particularly, changes in concentrations of defense chemicals (such as monoterpenes) and nutrients (such as nitrogen and carbon) have not been compared between live trees and their cut bolts. To determine whether monoterpene and nutrient concentrations differ after cutting, jack pine (Pinus banksiana Lamb.) trees in Lac La Biche (Alberta) were selected and sampled for phloem tissue. Then, these trees were harvested into two bolts per tree and stored at 4 °C for 3 and 6 months. Phloem was sampled from both live trees and bolts 3 and 6 months after storage. We found that major monoterpenes of jack pine were higher in phloem from bolts than from live trees. Storage time did not affect the results. Furthermore, some nutrients including nitrogen were also higher in bolts and varied between storage times. We conclude that researchers should be aware of the observed changes in the host quality that may have positive or negative effects on the development and behavior of bark beetles under observation.
Nonequilibrium thermal entanglement
Creators: name: Quiroga, Luis
name: Rodriguez, Ferney J.
name: Ramirez, Maria E.
name: Paris, Roberto
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Results on heat current, entropy production rate and entanglement are reported for a quantum system coupled to two different temperature heat reservoirs. By applying a temperature gradient, different quantum states can be found with exactly the same amount of entanglement but different purity degrees and heat currents. Furthermore, a nonequilibrium enhancement-suppression transition behavior of the entanglement is identified.
description: 5 pages and 5 figures(eps). Minor changes. Accepted version to be published in Phys. Rev. A
High-accuracy liquid-sample $β$-NMR setup at ISOLDE
Creators: name: Croese, J.
name: Baranowski, M.
name: Bissell, M. L.
name: Dziubinska-Kühn, K. M.
name: Gins, W.
name: Harding, R. D.
name: Jolivet, R. B.
name: Kanellakopoulos, A.
name: Karg, B.
name: Kulesz, K.
name: Flores, M. Madurga
name: Neyens, G.
name: Pallada, S.
name: Pietrzykc, R.
name: Pomorski, M.
name: Wagenknecht, P.
name: Zakouckyk, D.
name: Kowalska, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Recently there has been an increased interest to apply the sensitive $β$-decay asymmetry detected nuclear magnetic resonance ($β$-NMR) technique to biological studies. A liquid-sample $β$-NMR setup was build at ISOLDE to allow such investigations and to use the resolution gain of liquid-state NMR in nuclear physics. As part of this setup a magnetic field locking system, a set of printed circuit board shimming coils, a sample exchange system, a set of compact $β$-detectors and a custom experimental vacuum chamber were developed. The main magnetic field was stabilized down to the ppm level by the locking system while allowing the direct determination of the absolute magnetic field. The homogeneity of the magnetic field was improved to $\leq$~5~ppm over the sample volume by the shimming coils. Time spent on changing samples was reduced by a factor of five by the liquid sample exchange system. During experiments it was possible to continuously observe the liquid sample thanks to the custom chamber and compact $β$-detectors. The absolute field determination allows for a novel way to reference $β$-NMR measurements, removing the need for time consuming reference measurements. The improved accuracy and resolution resulting from these innovations allows the study of the distribution of nuclear magnetization and (bio)chemicals using high-accuracy liquid-sample $β$-NMR.
title: Allocare in St. Lawrence estuary belugas: patterns, prospective drivers, and potential benefits
Creators: name: Aubin, Jaclyn
Publisher: name: Memorial University of Newfoundland
Year: 2020

description: Allocare, care provided to offspring by non-parents, challenges our understanding of how animals should allocate their time and energy. The evolution and maintenance of allocare in populations suggests that alloparents receive fitness benefits from allocare. In many species, recipient offspring also receive important benefits from alloparents. My research represents the first in-depth investigation of allocare in wild belugas. By examining patterns of allocare, I seek to understand why beluga allomothers provide care to the offspring of others. My findings suggest that allocare in St. Lawrence Estuary belugas may be driven by kin selection and reciprocation. I also investigate potential benefits of allocare for recipient offspring by examining variables associated with variation in offspring risk, energetic costs, and group sociality. Patterns of allocare were not consistent with protective, energetic, or social benefits to offspring. However, patterns of calf allocare were influenced by herd movement pattern and tidal phase.
CONSIDERATIONS FOR IMPLEMENTATION OF LITERACY PRACTICES ALIGNED TO READING SCIENCE: PERSPECTIVES OF BIPOC PRINCIPALS
Creators: name: Zuerblis, Heather
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 3902
subject: Education policy, sociology and philosophy
classificationCode: 390304
subject: Primary education
classificationCode: 390407
subject: Inclusive education

description: A majority of fourth grade students in the United States aren’t reading proficiently (NAEP Reading: Reading Results, 2022). Deeper analysis of these assessment data surfaced a large gap between how our education system is serving students of color and their white counterparts. These gaps represent gaps in opportunity as access to quality evidence-based literacy instruction has been lacking throughout the United States. As the recent Science of Reading movement spreads, policies and legislation that mandate the use of evidence-based literacy practices also continue to expand. Many of these policies take aim at increasing teacher content knowledge. Missing from many states’ new literacy legislation is the inclusion of policies that ensure school leaders are equipped with aligned implementation guidance, as well as Reading Science content knowledge. Research is clear that school leaders are essential to change efforts and their effectiveness is linked to student achievement (Grissom et al., 2021). But this begs the question, how can school principals effectively support teachers if they don’t have the knowledge of Reading Science nor aligned implementation guidance? Given the complex nature of implementing a new initiative in a school, this study sought to uncover how school principals who were afforded professional development on the Science of Reading made sense of it, as well as identify the specific decisions and actions they took to support and sustain implementation. Using qualitative methods and a semi structured interview process, nine BIPOC public school principals were interviewed to understand their experiences with implementing Science of Reading approaches. The participant pool was intentionally designed to avoid white dominant thinking and provide space for voices that are often missing in the Science of Reading movement (Milner, 2020). Positionality was reflected on throughout the investigation, with careful attention to race due to the researcher being white. Findings reveal alignment between the study’s implementation framework (Bertram et al., 2015) and the decisions and actions each principal reported, with specific examples cited for each of the framework’s three implementation drivers. The resulting synthesis is captured in the Science of Reading Implementation Tool, or SORI Tool, with the goal of sharing it broadly to support other school leaders who are embarking on similar literacy initiatives. Recommendations for district leaders and members of the Science of Reading community are also discussed.
Systematic Coarse-graining of Epoxy Resins with Machine Learning-Informed Energy Renormalization
Creators: name: Giuntoli, Andrea
name: Hansoge, Nitin K.
name: van Beek, Anton
name: Meng, Zhaoxu
name: Chen, Wei
name: Keten, Sinan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A persistent challenge in predictive molecular modeling of thermoset polymers is to capture the effects of chemical composition and degree of crosslinking (DC) on dynamical and mechanical properties with high computational efficiency. We established a new coarse-graining (CG) approach that combines the energy renormalization method with Gaussian process surrogate models of the molecular dynamics simulations. This allows a machine-learning informed functional calibration of DC-dependent CG force field parameters. Taking versatile epoxy resins consisting of Bisphenol A diglycidyl ether combined with curing agent of either 4,4-Diaminodicyclohexylmethane or polyoxypropylene diamines, we demonstrated excellent agreement between all-atom and CG predictions for density, Debye-Waller factor, Young's modulus and yield stress at any DC. We further introduce a surrogate model enabled simplification of the functional forms of 14 non-bonded calibration parameters by quantifying the uncertainty of a candidate set of high-dimensional and flexible calibration functions. The framework established provides an efficient methodology for chemistry-specific, large-scale investigations of the dynamics and mechanics of epoxy resins.
description: new version: minor updates to the force field and general formatting after peer review
Input-output behaviour of a model neuron with alternating drift
Creators: name: Buonocore, A.
name: Di Crescenzo, A.
name: Di Nardo, E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Probability (math.PR)
subject: FOS: Biological sciences
subject: FOS: Mathematics

description: The input-output behaviour of the Wiener neuronal model subject to alternating input is studied under the assumption that the effect of such an input is to make the drift itself of an alternating type. Firing densities and related statistics are obtained via simulations of the sample-paths of the process in the following three cases: the drift changes occur during random periods characterized by (i) exponential distribution, (ii) Erlang distribution with a preassigned shape parameter, and (iii) deterministic distribution. The obtained results are compared with those holding for the Wiener neuronal model subject to sinusoidal input
Bumblebee field as a source of cosmological anisotropies
Creators: name: Maluf, R. V.
name: Neves, Juliano C. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work, a bumblebee field is adopted in order to generate cosmological anisotropies. For that purpose, we assume a Bianchi I cosmology, as the background geometry, and a bumblebee field coupled to it. Bumblebee models are examples of a mechanism for the Lorentz symmetry violation by assuming a nonzero vacuum expectation value for the bumblebee field. When coupled to the Bianchi I geometry, which is not in agreement with a cosmological principle, the bumblebee field plays the role of a source of anisotropies and produces a preferred axis. Thus, a fraction of the cosmic anisotropies would come from the Lorentz symmetry violation. In the last part of the article, we try to assume an upper bound on the bumblebee field using the quadrupole and octopole moments of the cosmic microwave background radiation.
description: 11 pages and 3 figures. v3: minor changes, published in Journal of Cosmology and Astroparticle Physics
Coordination of transportation and land use planning : a case study of Greater Vancouver
Creators: name: Faubert, Reginald Paul
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this thesis is to examine the coordination between transportation and other aspects of land use planning. This purpose is achieved through studying transportation planning and decision making in light of general overall metropolitan planning. Transportation planning is defined as a process for addressing societal concerns while attempting to meet the demands for transport made by the populace. Decision making is the final result of this process. In developing a model of the interrelationships between transportation and land use, this thesis examines theoretical literature and international examples. This examination illustrates benefits of transportation / land use coordination, such as the mutual support they can provide one another when pursuing similar policy objectives. The literature studied highlighted these relationships while acknowledging the unknown nature of causalities. In relation to the coordination of transportation and land use policy, planning and decision making, only the technical aspects should be achieved through disciplinary isolation. A two-example case study of transportation planning and decision making within Greater Vancouver is introduced with a discussion of the past thirty years of regional transportation planning and with a look at the Livable Region Program. This provides the context within which transportation planners of today must work. The case study utilizes interviews with planning staff members from agencies and municipalities with interest in the two major transportation facilities examined. The first example is the Alex Fraser Bridge over the Fraser River which was opened to automobile traffic in September of 1986. The second example is the possible future extension of rapid transit into Coquitlam, a facility which the provincial government has not yet committed itself to building. It is concluded that the Alex Fraser Bridge example does not support the policies of the Livable Region Program while the Coquitlam rapid transit example does. Furthermore, neither example supports the notion that the Livable Region Program is coordinated with transportation planning in Greater Vancouver. The final conclusion is that no coordination is apparent between the planning and implementation of regional transportation facilities and regional planning goals within Greater Vancouver. The transportation decisions analyzed in this thesis have been imposed upon the region by the provincial government. Promotion of regional goals by these transportation facilities is seen to result from similar objectives within different agencies rather than from coordination of planning between those agencies.
Quantum Back Flow Across a Black Hole Horizon in a Toy Model Approach
Creators: name: Biswas, Dripto
name: Ghosh, Subir
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum Back Flow (QBF), discovered quite a few years back, is a generic purely quantum phenomenon, in which the probability of finding a particle in a direction is non-zero (and increasing for a certain period of time) even when the particle has with certainty a velocity in the opposite direction. In this paper, we study QBF of a quantum particle across the event horizon of a Schwarzschild Black Hole. In a toy model approach, we consider a superposition of two ingoing solutions and observe the probability density and probability current. We explicitly demonstrate a non-vanishing quantum backflow in a small region around the event horizon. This is in contrast to the classical black hole picture, that once an excitation crosses the horizon, it is lost forever from the outside world. Deeper implications of this phenomenon are speculated. We also study quantum backflow for another spacetime with a horizon, the Rindler spacetime, where the phenomenon can be studied only within the Rindler wedge.
description: title changed, expanded version with new figures and explanations, no change in results and conclusions; accepted for publication in PRD
The influence of metallicity on the Leavitt Law from geometrical distances of Milky Way and Magellanic Clouds Cepheids
Creators: name: Breuval, Louise
name: Kervella, Pierre
name: Wielgórski, Piotr
name: Gieren, Wolfgang
name: Graczyk, Dariusz
name: Trahin, Boris
name: Pietrzyński, Grzegorz
name: Arenou, Frédéric
name: Javanmardi, Behnam
name: Zgirski, Bartlomiej
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Cepheid Period-Luminosity (PL) relation is the key tool for measuring astronomical distances and for establishing the extragalactic distance scale. In particular, the local value of the Hubble constant ($H_0$) strongly depends on Cepheid distance measurements. The recent Gaia Data Releases and other parallax measurements from the Hubble Space Telescope (HST) already enabled to improve the accuracy of the slope ($α$) and intercept ($β$) of the PL relation. However, the dependence of this law on metallicity is still largely debated. In this paper, we combine three samples of Cepheids in the Milky Way (MW), the Large Magellanic Cloud (LMC) and the Small Magellanic Cloud (SMC) in order to derive the metallicity term (hereafter $γ$) of the PL relation. The recent publication of extremely precise LMC and SMC distances based on late-type detached eclipsing binary systems (DEBs) provides a solid anchor for the Magellanic Clouds. In the MW, we adopt Cepheid parallaxes from the early third Gaia Data Release. We derive the metallicity effect in $V$, $I$, $J$, $H$, $K_S$, $W_{VI}$ and $W_{JK}$. In the $K_S$ band we report a metallicity effect of $-0.221 \pm 0.051$ mag/dex, the negative sign meaning that more metal-rich Cepheids are intrinsically brighter than their more metal-poor counterparts of the same pulsation period.
description: 26 pages, 9 figures. Accepted for publication in the Astrophysical Journal
title: Il canonico Giovanni Spano e gli Studi Umanistici a 145 anni dalla morte
Creators: name: Usai, Nicoletta
name: Todde, Eleonora
Publisher: name: UNICApress
Year: 2024

description: Il 3-4 aprile 2023, in occasione dell’anniversario della sua morte, il Dipartimento di Lettere, Lingue e Beni culturali dell’Università degli Studi di Cagliari ha organizzato il Convegno di studi Giovanni Spano e gli Studi Umanistici a 145 anni dalla morte, con coordinamento scientifico di Eleonora Todde e Nicoletta Usai, rispettivamente professoresse associate di Archivistica e di Storia dell’Arte medievale. Il volume raccoglie gli atti del Convegno con 13 saggi suddivisi in 3 sezioni tematiche rappresentative degli studi, dei campi di indagine e degli interessi di Giovanni Spano.
Study of the Change from Walking to Non-Walking Behavior in a Vectorial Gauge Theory as a Function of N_f
Creators: name: Kurachi, Masafumi
name: Shrock, Robert
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Based on recent works [1,2], we present the results of calculations for several physical quantities (meson masses, the S parameter, etc.) in a vectorial gauge theory, as a function of the number of fermions, N_f. Solutions of the Schwinger-Dyson and the Bethe-Salpeter equations with the improved ladder approximation are used for the calculations. We focus on how the values of physical quantities change as one moves from the QCD-like (non-walking) to walking regimes.
description: 7 pages, 4 figures, to appear in the proceedings of The 2006 International Workshop ``Origin of Mass and Strong Coupling Gauge Theories'' (SCGT 06), Nagoya, Japan, November 21 - 24, 2006
Combinatorics of multiboundary singularities B_n^l and Bernoulli-Euler numbers
Creators: name: Karpenkov, Oleg
Publisher: name: arXiv
Year: 2006
Subjects: subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 58K60; 14B05

description: Consider generalizations of the boundary singularities B_n of the functions on the real line to the case where the boundary consists of a finite number of l points. These singularities B_n^l could also arise in higher dimensional case, when the boundary is an immersed hypersurface. We obtain a particular recurrent equation on the numbers of connected components of very nice M-morsification spaces of the multiboundary singularities B_n^l. This helps us to express the numbers K_n^l (for l=2,3,4...) by Bernoulli-Euler numbers. We also find the corresponding generating functions.
description: 4 pages, 1 figure
Supertoroidal light pulses: Propagating electromagnetic skyrmions in free space
Creators: name: Shen, Yijie
name: Hou, Yaonan
name: Papasimakis, Nikitas
name: Zheludev, Nikolay I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Topological structures of electromagnetic fields could give access to nontrivial light-matter interactions and additional degrees of freedom for information and energy transfer. A characteristic example of such electromagnetic excitations are space-time non-separable single-cycle pulses, the exact solutions of Maxwell equation of toroidal topology predicted by Hellwarth and Nouchi in 1996 and recently observed experimentally. Here we introduce a new family of electromagnetic excitation of toroidal topology with increasing complexity in which the Hellwarth-Nouchi pulse is just the simplest member. The electromagnetic excitations of the new family can be parametrised by a single real number and exhibit skyrmionic structures of various orders. They feature multiple singularities in the electromagnetic and Poynting vector fields are accompanied by the fractal-like distributions of energy backflow. The generalized family of toroidal electromagnetic excitation with salient topologies are of interest for transient light-matter interactions, ultrafast optics, spectroscopy, and toroidal electrodynamics.
SYK meets non-Hermiticity II: measurement-induced phase transition
Creators: name: Jian, Shao-Kai
name: Liu, Chunxiao
name: Chen, Xiao
name: Swingle, Brian
name: Zhang, Pengfei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We construct Brownian Sachdev-Ye-Kitaev (SYK) chains subjected to continuous monitoring and explore possible entanglement phase transitions therein. We analytically derive the effective action in the large-$N$ limit and show that an entanglement transition is caused by the symmetry breaking in the enlarged replica space. In the noninteracting case with SYK$_2$ chains, the model features a continuous $O(2)$ symmetry between two replicas and a transition corresponding to spontaneous breaking of that symmetry upon varying the measurement rate. In the symmetry broken phase at low measurement rate, the emergent replica criticality associated with the Goldstone mode leads to a log-scaling entanglement entropy that can be attributed to the free energy of vortices. In the symmetric phase at higher measurement rate, the entanglement entropy obeys area-law scaling. In the interacting case, the continuous $O(2)$ symmetry is explicitly lowered to a discrete $C_4$ symmetry, giving rise to volume-law entanglement entropy in the symmetry-broken phase due to the enhanced linear free energy cost of domain walls compared to vortices. The interacting transition is described by $C_4$ symmetry breaking. We also verify the large-$N$ critical exponents by numerically solving the Schwinger-Dyson equation.
description: 4.5 pages + supplemental material, 4 figures
RobeCzech: Czech RoBERTa, a monolingual contextualized language representation model
Creators: name: Straka, Milan
name: Náplava, Jakub
name: Straková, Jana
name: Samuel, David
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: We present RobeCzech, a monolingual RoBERTa language representation model trained on Czech data. RoBERTa is a robustly optimized Transformer-based pretraining approach. We show that RobeCzech considerably outperforms equally-sized multilingual and Czech-trained contextualized language representation models, surpasses current state of the art in all five evaluated NLP tasks and reaches state-of-the-art results in four of them. The RobeCzech model is released publicly at https://hdl.handle.net/11234/1-3691 and https://huggingface.co/ufal/robeczech-base.
description: Published in TSD 2021
The Spectrum of Dark Radiation as a Probe of Reheating
Creators: name: Jaeckel, Joerg
name: Yin, Wen
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: After inflation the Universe presumably undergoes a phase of reheating which in effect starts the thermal big bang cosmology. However, so far we have very little direct experimental or observational evidence of this important phase of the Universe. In this letter, we argue that measuring the spectrum of freely propagating relativistic particles, i.e. dark radiation, produced during reheating may provide us with powerful information on the reheating phase. To demonstrate this possibility we consider a situation where the dark radiation is produced in the decays of heavy, non-relativistic particles. We show that the spectrum crucially depends on whether the heavy particle once dominated the Universe or not. Characteristic features caused by the dependence on the number of the relativistic degrees of freedom may even allow to infer the temperature when the decay of the heavy particle occurred.
description: 11 pages, 6 figures
Orbital contribution to the magnetic properties of nanowires: Is the orbital polarization ansatz justified?
Creators: name: Desjonqueres, Marie-Catherine
name: Barreteau, Cyrille
name: Autes, Gabriel
name: Spanjaard, Daniel
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We show that considerable orbital magnetic moments and magneto-crystalline anisotropy energies are obtained for a Fe monatomic wire described in a tight-binding method with intra-atomic electronic interactions treated in a full Hartree Fock (HF) decoupling scheme. Even-though the use of the orbital polarization ansatz with simplified Hamiltonians leads to fairly good results when the spin magnetization is saturated this is not the case of unsaturated systems. We conclude that the full HF scheme is necessary to investigate low dimensional systems.
Learning action models by curiosity driven self exploration and language guided generalization
Creators: name: Panzner, Maximilian
Publisher: name: Universität Bielefeld
Year: 2020
Subjects: subject: 000

description: Most theories and models of language acquisition so far have adopted a ‘mapping’ paradigm according to which novel words or constructions are ‘mapped’ onto existing, priorly acquired or innate concepts. Departing from this mapping approach, the thesis develops a computational model of the co-emergence of linguistic and conceptual structures with a particular focus on the case of action verbs. The model is inspired by emergentist theories of language acquisition and transfers the underlying ideas also to the domain of action learning. The emergentist cross-modal learning process spells out how a learner can distill the essence of the meaning of a verbal construction as a process of incremental generalization of the meaning of action verbs, starting from a meaning that is specific to a certain situation in which the verb has been encountered. The meaning of action verbs is understood as evoking a grounded simulation rather than a static concept. We show that cross-modal learning can provide an advantage over uni-modal models especially when observations are ambiguous and hard to differentiate. The connection between the theoretical foundation and the technical implementation is bidirectional. On the one hand, the technical properties of the model such as the fully incremental and data-driven approach to learn concepts within a modality that are grounded in concepts with similar semantics of another modality are relevant in many technical applications that are common in human-computer interaction and robotics. On the other hand technical implementations that are closely based on key concepts of theoretical frameworks can as well serve as computer implemented theories that allow other researchers to interactively test hypothesis that arise from the theoretical foundation. The thesis details connections to ongoing interdisciplinary research in linguistics and cognitive sciences.
Adaptive boundary conditions for exterior stationary flows in three dimensions
Creators: name: Heuveline, Vincent
name: Wittwer, Peter
Publisher: name: arXiv
Year: 2008
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Recently there has been an increasing interest for a better understanding of ultra low Reynolds number flows. In this context we present a new setup which allows to efficiently solve the stationary incompressible Navier-Stokes equations in an exterior domain in three dimensions numerically. The main point is that the necessity to truncate for numerical purposes the exterior domain to a finite sub-domain leads to the problem of finding so called "artificial boundary conditions" to replace the conditions at infinity. To solve this problem we provide a vector filed that describes the leading asymptotic behavior of the solution at large distances. This vector field depends explicitly on drag and lift which are determined in a self-consistent way as part of the solution process. When compared with other numerical schemes the size of the computational domain that is needed to obtain the hydrodynamic forces with a given precision is drastically reduced, which in turn leads to an overall gain in computational efficiency of typically several orders of magnitude.
description: 17 pages, 3 tables, 11 figures
Delta-kick Squeezing
Creators: name: Corgier, Robin
name: Gaaloul, Naceur
name: Smerzi, Augusto
name: Pezzè, Luca
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We explore the possibility to overcome the standard quantum limit (SQL) in a free-fall atom interferometer using a Bose-Einstein condensate (BEC) in either of the two relevant cases of Bragg or Raman scattering light pulses. The generation of entanglement in the BEC is dramatically enhanced by amplifying the atom-atom interactions via the rapid action of an external trap focusing the matter-waves to significantly increase the atomic densities during a preparation stage -- a technique we refer to as delta-kick squeezing (DKS). The action of a second DKS operation at the end of the interferometry sequence allows to implement a non-linear readout scheme making the sub-SQL sensitivity highly robust against imperfect atom counting detection. We predict more than 30 dB of sensitivity gain beyond the SQL for the variance, assuming realistic parameters and $10^6$ atoms.
description: 4 pages, 4 figues
Supplementary document for Adaptive Optics Optical Coherence Tomography and Scanning Laser Ophthalmoscopy system for in vivo mouse retina imaging - 6166392.pdf
Creators: name: Zhang, Pengfei
name: Wahl, Daniel
name: Mocci, Jacopo
name: Bonora, Stefano
name: Sarunic, Marinko
name: Zawadzki, Robert
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Vision Science

description: Suplemental Document
Classical and quantum two-dimensional anisotropic Heisenberg antiferromagnets
Creators: name: Holtschneider, M.
name: Wessel, S.
name: Selke, W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The classical and the quantum, spin $S=1/2, versions of the uniaxially anisotropic Heisenberg antiferromagnet on a square lattice in a field parallel to the easy axis are studied using Monte Carlo techniques. For the classical version, attention is drawn to biconical structures and fluctuations at low temperatures in the transition region between the antiferromagnetic and spin-flop phases. For the quantum version, the previously proposed scenario of a first-order transition between the antiferromagnetic and spin-flop phases with a critical endpoint and a tricritical point is scrutinized.
description: 5 pages, 7 figures, accepted by Phys. Rev. B
FAIR Data Training and Community Building activities in the Netherlands
Creators: name: Kuzak, Mateusz
name: Staiger, Christine
name: Gelder, Celia W.G. Van
Publisher: name: Zenodo
Year: 2019
Subjects: Training
Capacity Building
Data Stewardship
Data Management
Data Stewardship competencies
Community Building
FAIR

description: Poster presented at the ELIXIR All Hands Meeting 17-20 June 2019, Lisbon, Portugal  FAIR Data Training and Community Building activities in the Netherlands  Interoperability, FAIR data treatment and training of researchers and data experts are themes that are core to the remit of the Dutch ELIXIR node. In line with these focal points, a significant part of our training activities can be categorized as “FAIR Data Training”.

 Highlights are: Helis Academy, a project targeting companies in the Life Science sector, that is set out to improve training the skills in Data Analysis & Stewardship for both new staff and existing staff (lifelong learning). Working on establishing the competences and skills for the data stewards in the life-sciences, and develop tailored education (in aligned ELIXIR-funded and nationally-funded projects) FAIR awareness, FAIR metrics and FAIRification trainings on different levels depending on the audience (in collaboration with our funders), the ELIXIR Data Stewardship wizard, in collaboration with Czech ELIXIR node ELIXIR-NL is leading the FAIR training Working Group of the ELIXIR Training Platform, with the goals of (i) making training about data FAIR stewardship available in TeSS (ii) making training resources FAIR
 Strongly connected with these training activities are the community building efforts we are undertaking for all of our significant themes (e.g. the national Data Stewards Interest Group), as well as our involvement in setting up research support desks at the Academic Medical Centres in the Netherlands.