cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Entre fiction et histoire : la construction de la figure de la sorcière dans la littérature contemporaine
Creators: name: Sullivan, Maryse
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2019
Subjects: sorcière
histoire
femme
littérature
époque moderne
féminisme
roman historique
intertextualité
sociocritique
Maryse Condé
Nancy Huston
Anne Hébert
Raymond Jean
culture populaire
imaginaire social
vingtième siècle
post-colonial
contes
figure
mythe

description: Dans le cadre de cette thèse, nous nous intéressons aux représentations de la sorcière dans la littérature d’inspiration historique à partir des années 1970. Nous analysons la construction de cette figure protéiforme et les métamorphoses qu’elle connaît dans l’imaginaire social lors des dernières décennies du XXe siècle. Plus précisément, nous examinons les différentes facettes de la sorcière, telles qu’elles apparaissent dans quatre romans francophones d’inspiration historique, en relation avec les discours historiques, féministes et postcoloniaux, et les autres productions culturelles de la même période. En étudiant les interactions entre les représentations de la sorcière et d’autres œuvres, travaux et tendances de l’époque, notre thèse met en lumière les problématiques abordées à travers cette figure dans les textes littéraires. La figure de la sorcière reprend notamment des enjeux qui marquent les dernières décennies du XXe siècle, tels la place des femmes et des cultures minoritaires dans la société, la représentation du corps féminin, le recul des religions traditionnelles et l’écriture de l’Histoire. Au moyen des approches sociocritique et intertextuelle, nous explorons ces enjeux et analysons la façon dont les œuvres développent ou prolongent ces réflexions en abordant la figure de la sorcière. De manière à pouvoir tracer l’évolution de la figure et des questions qui lui sont liées, la thèse est divisée en trois parties, représentant chacune une décennie distincte. Après un préambule brossant un tableau de l’imaginaire de la sorcière au début des années 1970, une première partie se concentre sur la construction de la figure de la sorcière dans les romans Les Enfants du sabbat d’Anne Hébert et La Fontaine obscure de Raymond Jean, parus lors de la décennie 1970. Une deuxième partie, centrée sur la décennie 1980, se penche sur le roman Moi, Tituba sorcière... de Maryse Condé. Enfin, une troisième partie s’intéresse au roman Instruments des ténèbres de Nancy Huston, publié pendant les années 1990. En combinant différentes approches, cette thèse tend à mieux comprendre la fonction de la sorcière dans la littérature et les idées qui lui sont associées dans l’imaginaire social à partir de 1970.
Additional file 16 of Identification of genetic variants that impact gene co-expression relationships using large-scale single-cell data
Creators: name: Li, Shuang
name: Schmid, Katharina T.
name: de Vries, Dylan H.
name: Korshevniuk, Maryna
name: Losert, Corinna
name: Oelen, Roy
name: van Blokland, Irene V.
name: Groot, Hilde E.
name: Swertz, Morris A.
name: van der Harst, Pim
name: Westra, Harm-Jan
name: van der Wijst, Monique G.P.
name: Heinig, Matthias
name: Franke, Lude
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 16. Review history.
Maximal Arithmetic Progressions in Random Subsets
Creators: name: Benjamini, Itai
name: Yadin, Ariel
name: Zeitouni, Ofer
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 60C05

description: Let U(N) denote the maximal length of arithmetic progressions in a random uniform subset of {0,1}^N. By an application of the Chen-Stein method, we show that U(N)- 2 log(N)/log(2) converges in law to an extreme type (asymmetric) distribution. The same result holds for the maximal length W(N) of arithmetic progressions (mod N). When considered in the natural way on a common probability space, we observe that U(N)/log(N) converges almost surely to 2/log(2), while W(N)/log(N) does not converge almost surely (and in particular, limsup W(N)/log(N) is at least 3/log(2)).
description: Slight errors in the constants corrected
HMP: Hand Motion Priors for Pose and Shape Estimation from Video
Creators: name: Duran, Enes
name: Kocabas, Muhammed
name: Choutas, Vasileios
name: Fan, Zicong
name: Black, Michael J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Understanding how humans interact with the world necessitates accurate 3D hand pose estimation, a task complicated by the hand's high degree of articulation, frequent occlusions, self-occlusions, and rapid motions. While most existing methods rely on single-image inputs, videos have useful cues to address aforementioned issues. However, existing video-based 3D hand datasets are insufficient for training feedforward models to generalize to in-the-wild scenarios. On the other hand, we have access to large human motion capture datasets which also include hand motions, e.g. AMASS. Therefore, we develop a generative motion prior specific for hands, trained on the AMASS dataset which features diverse and high-quality hand motions. This motion prior is then employed for video-based 3D hand motion estimation following a latent optimization approach. Our integration of a robust motion prior significantly enhances performance, especially in occluded scenarios. It produces stable, temporally consistent results that surpass conventional single-frame methods. We demonstrate our method's efficacy via qualitative and quantitative evaluations on the HO3D and DexYCB datasets, with special emphasis on an occlusion-focused subset of HO3D. Code is available at https://hmp.is.tue.mpg.de
Dynamical phase transition in vibrational surface modes
Creators: name: Calvo, H. L.
name: Pastawski, H. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider the dynamical properties of a simple model of vibrational surface modes. We obtain the exact spectrum of surface excitations and discuss their dynamical features. In addition to the usually discussed localized and oscillatory regimes we also find a second phase transition where surface mode frequency becomes purely imaginary and describes an overdamped regime. Noticeably, this transition has an exact correspondence to the oscillatory - overdamped transition of the standard oscillator with a frictional force proportional to velocity.
description: 4 pages, 3 figures. To appear in Braz. J. Phys
Additional file 1: of Epidemiological shift and geographical heterogeneity in the burden of leptospirosis in China
Creators: name: Dhewantara, Pandji
name: A. Mamun, Abdullah
name: Zhang, Wen-Yi
name: Yin, Wen-Wu
name: Ding, Fan
name: Guo, Danhuai
name: Hu, Wenbiao
name: Costa, Federico
name: Ko, Albert
name: Soares MagalhĂŁes, Ricardo
Publisher: name: figshare
Year: 2018
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Plant Biology
subject: FOS: Biological sciences

description: Multilingual abstract in the five official working languages of the United Nations. (PDF 778Â kb)
Heat production and energy balance in nanoengines driven by time-dependent fields
Creators: name: Arrachea, Liliana
name: Moskalets, Michael
name: Martin-Moreno, Luis
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a formalism to study the heat transport and the power developed by the local driving fields on a quantum system coupled to macroscopic reservoirs. We show that, quite generally, two important mechanisms can take place: (i) directed heat transport between reservoirs induced by the ac potentials and (ii) at slow driving, two oscillating out of phase forces perform work against each other, while the energy dissipated into the reservoirs is negligible
description: 5 pages, 4 figures
XMM-Newton slew survey discovery of the nova XMMSL1 J070542.7-381442 (V598 Pup)
Creators: name: Read, A. M.
name: Saxton, R. D.
name: Torres, M. A. P.
name: Esquej, P.
name: Kuulkers, E.
name: Jonker, P. G.
name: Osborne, J. P.
name: Freyberg, M. J.
name: Challis, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In an attempt to catch new X-ray transients while they are still bright, the data taken by XMM-Newton as it slews between targets is being processed and cross-correlated with other X-ray observations as soon as the slew data appears in the XMM-Newton archive. A bright source, XMMSL1 J070542.7-381442, was detected on 9 Oct 2007 at a position where no previous X-ray source had been seen. The XMM slew data and optical data acquired with the Magellan Clay 6.5m telescope were used to classify the new object. No XMM slew X-ray counts are detected above 1keV and the source is seen to be ~750 times brighter than the ROSAT All-Sky Survey upper limit at that position. The normally m(V)~16 star, USNO-A2.0 0450-03360039, which lies 3.5" from the X-ray position, was seen in our Magellan data to be very much enhanced in brightness. Our optical spectrum showed emission lines which identified the source as a nova in the auroral phase. Hence this optical source is undoubtedly the progenitor of the X-ray source - a new nova (now also known as V598 Pup). The X-ray spectrum indicates that the nova was in a super-soft state (with kT(eff)~35eV). We estimate the distance to the nova to be ~3kpc. Analysis of archival robotic optical survey data shows a rapid decline light curve consistent with that expected for a very fast nova. The XMM-Newton slew data present a powerful opportunity to find new X-ray transient objects while they are still bright. Here we present the first such source discovered by the analysis of near real-time slew data.
description: 4 pages, 4 figures, accepted for publication in A&A Letters
Minimum time generation of a uniform superposition in a qubit with only transverse field control
Creators: name: Evangelakos, Vasileios
name: Paspalakis, Emmanuel
name: Stefanatos, Dionisis
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Optimization and Control (math.OC)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 49K15

description: We consider a two-level system with a fixed energy spacing (detuning) between the two levels and a single transverse control field which can take values between zero and a maximum amplitude. Using Pontryagin's maximum principle, we completely solve the problem of generating in minimum time a uniform superposition of the two quantum states when starting from one of them, for all the values of the ratio between the maximum control amplitude and the detuning. For each value of this ratio we find the optimal pulse sequence to have the bang-bang form, and calculate the durations of the pulses composing it. The suggested framework is not only restricted to the problem at hand, but it can be also exploited in the problem of fast charging a quantum battery based on a two-level system, as well as for the optimization of pulse-sequences used for the controlled preparation of the excited state in a quantum emitter, which is a prerequisite for its usage as a single-photon source.
Correlated Quantum Phenomena of Spin-Orbit Coupled Perovskite Oxide Heterostructures: Cases of SrRuO3 and SrIrO3-Based Artificial Superlattices
Creators: name: Jeong, Seung Gyo
name: Oh, Jin Young
name: Hao, Lin
name: Liu, Jian
name: Choi, Woo Seok
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Unexpected, yet useful functionalities emerge when two or more materials merge coherently. Artificial oxide superlattices realize atomic and crystal structures that are not available in nature, thus providing controllable correlated quantum phenomena. This review focuses on 4d and 5d oxide superlattices, in which the spin-orbit coupling plays a significant role compared with conventional 3d oxide superlattices. Modulations in crystal structures with octahedral distortion, phonon engineering, electronic structures, spin orderings, and dimensionality control are discussed for 4d oxide superlattices. Atomic and magnetic structures, Jeff = 1/2 pseudospin and charge fluctuations, and the integration of topology and correlation are discussed for 5d oxide superlattices. This review provides insights into how correlated quantum phenomena arise from the deliberate design of superlattice structures that give birth to novel functionalities.
description: 68 pages
Isolation and characterization of a perchlorate-reducing Acinetobacter bereziniae strain GWF
Creators: name: Zhang, Yuanyuan
name: Lu, Jianbo
name: Guo, Jianbo
name: Wang, Qian
name: Lian, Jing
name: Wang, Yajun
name: Zhang, Chao
name: Yang, Jingliang
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Virology

description: A novel strain, Acinetobacter bereziniae strain GWF(KM062029), was isolated from anaerobic activated sludge. The complete 16S rDNA sequence showed that strain GWF has closest homology (100%) with A. bereziniae strain BENAB7 (HE651923.1) and A. bereziniae strain ATCC 17924 (HE651922.1). Strain GWF is a Gram-negative, non-fermentative facultative anaerobe. The optimum growth conditions were shown to be 30 °C, pH 7.5 and acetate-to-perchlorate ratio of 10, respectively. In this study, anthraquinone-1-sulfonate (α-AQS) was the best redox mediator in the perchlorate reduction, and the optimum concentration range was 1.067 mmol/L. The perchlorate reduction rate was enhanced 1.33-fold using 1.067 mmol/L α-AQS. Meanwhile, strain GWF could not withstand the effect of concomitant anions (nitrate, chlorate, chlorite). The concomitant anions constants were 30 mg/L and 1.0 mmol/L for nitrate and chlorate, respectively. Chlorite completely inhibited the perchlorate reduction, and the inhibition did not depend on the concentration of chlorite.
Negativity of the Casimir self-entropy in spherical geometries
Creators: name: Li, Yang
name: Milton, Kimball A.
name: Parashar, Prachi
name: Hong, Lujun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It has been recognized for some time that even for perfect conductors, the interaction Casimir entropy, due to quantum/thermal fluctuations, can be negative. This result was not considered problematic because it was thought that the self-entropies of the bodies would cancel this negative interaction entropy, yielding a total entropy that was positive. In fact, this cancellation seems not to occur. The positive self-entropy of a perfectly conducting sphere does indeed just cancel the negative interaction entropy of a system consisting of a perfectly conducting sphere and plate, but a model with weaker coupling in general possesses a regime where negative self-entropy appears. The physical meaning of this surprising result remains obscure. In this paper we re-examine these issues, using improved physical and mathematical techniques, partly based on the Abel-Plana formula, and present numerical results for arbitrary temperatures and couplings, which exhibit the same remarkable features.
description: 10 pages, 11 figures
Decoherence and interactions in an electronic Mach-Zehnder interferometer
Creators: name: Chalker, J. T.
name: Gefen, Yuval
name: Veillette, M. Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We develop a theoretical description of a Mach-Zehnder interferometer built from integer quantum Hall edge states, with an emphasis on how electron-electron interactions produce decoherence. We calculate the visibility of interference fringes and noise power, as a function of bias voltage and of temperature. Interactions are treated exactly, by using bosonization and considering edge states that are only weakly coupled via tunneling at the interferometer beam-splitters. In this weak-tunneling limit, we show that the bias-dependence of Aharonov-Bohm oscillations in source-drain conductance and noise power provides a direct measure of the one-electron correlation function for an isolated quantum Hall edge state. We find the asymptotic form of this correlation function for systems with either short-range interactions or unscreened Coulomb interactions, extracting a dephasing length $\ell_ϕ$ that varies with temperature $T$ as $\ell_ϕ \propto T^{-3}$ in the first case and as $\ell_ϕ \propto T^{-1} \ln^2(T)$ in the second case.
description: 12 pages, 8 figure. Published version
Neoeutegaeidae Colloff 2023, fam. nov.
Creators: name: Colloff, Matthew J.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Oribatida
Neoeutegaeidae

description: Neoeutegaeidae fam. nov.
Type genus: Neoeutegaeus Aoki, 1964, p. 307.
Diagnosis. Small to large oribatid mites (280–850 μm long). Rostrum rounded, entire. Lamellae broad, covering lateral margins of prodorsum, with free cusps; lamellar seta emerging from excavation at apex of cusp, often between two teeth. Interlamellar setae typically minute. Bothridium long, corniculate, not fused with base of lamella, opening anterolaterally, with circular internal thickening. Bothridial seta long, setiform or bacilliform. Prodorsum markedly waisted posterior of bothridium. Humeral processes long, pointed apically, parallel, straight, broad basally, not waisted, extending from anterolateral margin of notogaster to point at least half the length of the lamella, with or without dorsal keel, posterolateral margin with protrusion where humeral process joins notogaster. Notogaster Ushaped, convex, smooth, with eight or nine pairs of setae, all positioned marginally or sub-marginally; setae of l and h series (and occasionally p 1) longer and of different morphology from those of p series (or p 2 and p 3). Chelicerae chelate-dentate, of normal proportions. Epimeral plates II short, narrow. Pedotectum I (pd I) sub-rectangular in lateral outline; pd II rectangular or lobed, leaf-shaped; discidium pointed or lobed. Circumpedal carinae, perigenital carinae and enantiophyses E4 present. Genital setae five or six pairs, g 4 pair displaced laterally, adanal setae two or three pairs. Anal plates lozenge-shaped. Pre-anal organ oval (Neoeutegaeus) or T-shaped (Humerotegaeus).
Remarks. Neoeutegaeus was formerly placed in Eutegaeidae (Table 1), but the humeral processes emerging from the anterolateral margin of the notogaster and with broad bases, the lobe-like discidium, the short and narrow epimeral plates III, the presence of perigenital carinae and enantiophyses E4 are character states shared with Humerotegaeus gen nov. and are sufficient to justify the establishment of a separate family.
description: Published as part of Colloff, Matthew J., 2023, The oribatid mite superfamily Eutegaeoidea (Acari, Oribatida), with descriptions of new taxa from Australia and New Caledonia and a re-assessment of genera and families, pp. 1-93 in Zootaxa 5365 (1) on page 39, DOI: 10.11646/zootaxa.5365.1.1, http://zenodo.org/record/10146969
Snyder's Quantized Space-time and De Sitter Special Relativity
Creators: name: Guo, Han-Ying
name: Huang, Chao-Guang
name: Tian, Yu
name: Xu, Zhan
name: Zhou, Bin
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: There is a one-to-one correspondence between Snyder's model in de Sitter space of momenta and the \dS-invariant special relativity. This indicates that physics at the Planck length $\ell_P$ and the scale $R=3/Λ$ should be dual to each other and there is in-between gravity of local \dS-invariance characterized by a dimensionless coupling constant $g=\ell_P/R\sim 10^{-61}$.
description: 8 pages
Aboriginal Identity: The Need for Historical and Contextual Perspectives
Creators: name: Restoule, Jean-Paul
Publisher: name: Canadian Journal of Native Education
Year: 2021

description: Employing a perspective that distinguishes between "identity" and "identifying" demonstrates the limitations inherent in typical conceptions of cultural identity. Identifying is situational and historical, shaped by the time and place in which it occurs, whereas identity is thought to transcend history and social situations. Identity is rep­ resented in the Indian Act and its definition of "Indian." Métis efforts for recognition as an Aboriginal people in their own right is seen as identifying. The potential harm of identity is demonstrated by the Crown's arguments in the case for Gitksan- Wet'suwet'en Aboriginal title.
description: Canadian Journal of Native Education, Vol. 24 No. 2 (2000)
Final state interactions in electron scattering at high missing energies and momenta
Creators: name: Barbieri, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Calculations of two-step rescattering and pion emission for the 12C(e,e'p) reaction at very large missing energies and momenta are compared with recent data from TJNAF. For parallel kinematics, final state interactions are strongly reduced by kinematical constraints. A good agreement between calculation and experiment is found for this kinematics when one admits the presence of high momentum components in the nuclear wave function.
description: To appear in the Proceedings of Nuint05, Okayama, Japan, Sept. 26-29, 2005
Learning the Precise Feature for Cluster Assignment
Creators: name: Gan, Yanhai
name: Dong, Xinghui
name: Zhou, Huiyu
name: Gao, Feng
name: Dong, Junyu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Clustering is one of the fundamental tasks in computer vision and pattern recognition. Recently, deep clustering methods (algorithms based on deep learning) have attracted wide attention with their impressive performance. Most of these algorithms combine deep unsupervised representation learning and standard clustering together. However, the separation of representation learning and clustering will lead to suboptimal solutions because the two-stage strategy prevents representation learning from adapting to subsequent tasks (e.g., clustering according to specific cues). To overcome this issue, efforts have been made in the dynamic adaption of representation and cluster assignment, whereas current state-of-the-art methods suffer from heuristically constructed objectives with representation and cluster assignment alternatively optimized. To further standardize the clustering problem, we audaciously formulate the objective of clustering as finding a precise feature as the cue for cluster assignment. Based on this, we propose a general-purpose deep clustering framework which radically integrates representation learning and clustering into a single pipeline for the first time. The proposed framework exploits the powerful ability of recently developed generative models for learning intrinsic features, and imposes an entropy minimization on the distribution of the cluster assignment by a dedicated variational algorithm. Experimental results show that the performance of the proposed method is superior, or at least comparable to, the state-of-the-art methods on the handwritten digit recognition, fashion recognition, face recognition and object recognition benchmark datasets.
Berezinskii-Kosterlitz-Thouless phase transitions with long-range couplings
Creators: name: Giachetti, Guido
name: Defenu, Nicolo
name: Ruffo, Stefano
name: Trombettoni, Andrea
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Berezinskii-Kostelitz-Thouless (BKT) transition is the paradigmatic example of a topological phase transition without symmetry-breaking, where a quasi-ordered phase, characterized by a power law scaling of the correlation functions at low temperature, is disrupted by the proliferation of topological excitations above the critical temperature $T_{\rm BKT}$. In this letter, we consider the effect of long-range decaying couplings $\sim r^{-2-σ}$ on this phenomenon. After pointing out the relevance of this non trivial problem, we discuss the phase diagram, which is far richer than the corresponding short-range one. It features -- for $7/4T_{\rm BKT}$. The transition temperature $T_c$ displays unique universal features quite different from those of the traditional, short-range XY model. Given the universal nature of our findings, they may be observed in current experimental realizations in $2D$ atomic, molecular and optical quantum systems.
description: 11 Pages, 2 Figures
Empowering Aboriginal Voice in Aboriginal Education
Creators: name: Antone, Eileen M.
Publisher: name: Canadian Journal of Native Education
Year: 2021

description: This article is a summary pertaining to the importance of teaching our children our history and ways as they relate to our respective territories. It is based on data col­lected from the Onyota'a:ka of the Thames community. The findings of this study show that language and ceremony are important aspects of enhancing voice to nur­ture confidence and creativity of the school children. The voices of Aboriginal peoples need to be encouraged and need to be heard in the school systems that the Aboriginal students attend.
description: Canadian Journal of Native Education, Vol. 24 No. 2 (2000)
Shift of CO2-I absorption bands in diamond: a pressure or compositional effect? A FTIR mapping study
Creators: name: Barannik, Evgenii P.
name: Shiryaev, Andrey A.
name: Hainschwang, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Infra-red maps and profiles with high spatial resolution were obtained for two single crystal diamonds with pronounced CO2 IR absorption peaks. Detailed examination allows unambiguous assignment of the spectral features to solid CO2-I phase. It is shown that the distribution of IR band positions, intensities and widths in the sample follows regular patterns and is not chaotic as was suggested in previous works where spectra of a few individual spots were analysed. Consequently, pressure effects alone fail to explain all observed features and shifts of the CO2 bands. Experimental data can be explained by presence of impurities (such as water, N2, etc.) in the trapped CO2. This implies that spectroscopic barometry of CO2 microinclusions in diamond may be subject to poorly controlled bias. However, barometry is still possible if Davydov splitting of the CO2-I ν2 band is unequivocally observed, as this indicates high purity of the CO2 ice.
Observation of heat scaling across a first-order quantum phase transition in a spinor condensate
Creators: name: Liang, Haiyu
name: Qiu, Liyuan
name: Yang, Yanbin
name: Yang, Haoxiang
name: Tian, Tian
name: Xu, Yong
name: Duan, Luming
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Heat generated as a result of the breakdown of an adiabatic process is one of the central concepts of thermodynamics. In isolated systems, the heat can be defined as an energy increase due to transitions between distinct energy levels. Across a second-order quantum phase transition (QPT), the heat is predicted theoretically to exhibit a power-law scaling, but it is a significant challenge for an experimental observation. In addition, it remains elusive whether a power-law scaling of heat can exist for a first-order QPT. Here we experimentally observe a power-law scaling of heat in a spinor condensate when a system is linearly driven from a polar phase to an antiferromagnetic phase across a first-order QPT. We experimentally evaluate the heat generated during two non-equilibrium processes by probing the atom number on a hyperfine energy level. The experimentally measured scaling exponents agree well with our numerical simulation results. Our work therefore opens a new avenue to experimentally and theoretically exploring the properties of heat in non-equilibrium dynamics.
Some examples of vector bundles in the base locus of the generalized theta divisor
Creators: name: Casalaina-Martin, Sebastian
name: Gwena, Tawanda
name: Bigas, Montserrat Teixidor i
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14H60

description: This paper shows that on the moduli space of semi-stable vector bundles of fixed rank and determinant (of any degree) on a smooth curve of genus at least two, the base locus of the generalized theta divisor is large provided the rank is sufficiently large. It also shows that the base locus is large for positive multiples of the theta divisor. This work extends results already known for the case where the determinant is of degree zero.
description: 5 pages, AMS LaTEx, minor revisions
Constraints on a scale invariant power spectrum from superinflation in LQC
Creators: name: Mulryne, D. J.
name: Nunes, N. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The computation of the spectrum of primordial perturbations, generated by a scalar field during the super-inflationary phase of Loop Quantum Cosmology, is revisited. The calculation is performed for two different cases. The first considers the dynamics of a massless field and it is found that scale invariance can only be achieved under a severe fine tuning. The second assumes that the field evolves with a constant ratio between kinetic and potential energy, i.e. in a scaling solution. In this case, near scale invariance is a generic feature of the theory if the field rolls in a steep self interaction potential.
description: 9 pages. Version accepted for publication in PRD
Top-philic heavy resonances in four-top final states and their EFT interpretation
Creators: name: Darmé, Luc
name: Fuks, Benjamin
name: Maltoni, Fabio
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: With an expected rate of about one event per 100,000 top-quark pairs, four top-quark final states very rarely arise at the LHC. Though scarce, they offer a unique window onto top-quark compositeness, self-interactions and more generically, onto any top-philic new physics. By employing simplified models featuring heavy resonances, we study the range of validity of effective theory interpretations of current four top-quark analyses at the LHC and establish their future reach at the HL-LHC. We find that for the class of models under consideration, the effective field theory interpretations are not applicable. We therefore present the most up-to-date limits obtained from public CMS analyses using simplified models. Finally, we put forward a novel recasting strategy for the experimental results based on the production of top quarks with large transverse momentum.
description: 28 pages, 9 figures, 6 tables. References added, matches published version
Towards realism in international political theory : a defense
Creators: name: Griffiths, Martin
Publisher: name: University of British Columbia
Year: 2011

description: In the discipline of International Relations, the term "realism" has been severed from its association with ordinary usage, and is attributed to a school of thought according to which international politics is essential1y an asocial realm of conflict and struggles for security and power among states in an anarchical environment. The two main post-war theorists associated with this approach are Hans Morgenthau and Kenneth Waltz. This thesis argues, contrary to conventional wisdom, that realism is not a meaningless term in common parlance, nor is it redundant as an attribute of thought about international politics. I argue that it has been inappropriately applied to the work of these two "grand theorists" whose approach does not merit the label. Instead, this dissertation concludes that they are more appropriately characterised as idealists. In contrast to Morgenthau and Waltz, whose work suffers from the shortcomings of (in Morgenthau's case) nostalgic idealism and (in Waltz's case) complacent idealism, I argue that what is referred to as the "Grotian" approach to the study of international politics is more deserving of the label "realism." The argument is explicitly based on the interpretation of the meaning of the terms "political realism" and "political idealism" contained in Robert Berki's book, On Political Realism (London, 1981). Consistent with the logic of ordinary usage, Berki argues that realism is an attribute of thought which presupposes that "reality" is the dialectical interplay between necessity and freedom, constraints and opportunities. Idealism, in contrast, is the ontological denial of this presupposition, and the reification of either necessity or freedom. These abstractions are then imposed upon political practice leading to an evaluative stance of nostalgia and complacency, or revolution (the "idealism of imagination"). Realism transcends the false bifurcation between these extremes. In light of Berki 's analysis, Hedley Bull's theoretical approach to international politics - which recognizes its heterogeneity as a social and "rule-governed" domain - is defended as a more realistic starting-point for thinking systematically about the source and nature of order among states than that provided by either Morgenthau or Waltz.
Topological nodal chains in optical lattices
Creators: name: Wang, Bei-Bei
name: Zhang, Jia-Hui
name: Shan, Chuanjia
name: Mei, Feng
name: Jia, Suotang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Topological nodal rings as the simplest topological nodal lines recently have been extensively studied in optical lattices. However, the realization of complex nodal line structures like nodal chains in this system remains a crucial challenge. Here we propose an experimental scheme to realize and detect topological nodal chains in optical Raman lattices. Specifically, we construct a three-dimensional optical Raman lattice which supports next nearest-neighbor spin-orbit couplings and hosts topological nodal chains in its energy spectra. Interestingly, the realized nodal chains are protected by mirror symmetry and could be tuned into a large variety of shapes, including the inner and outer nodal chains. We also demonstrate that the shapes of the nodal chains could be detected by measuring spin polarizations. Our study opens up the possibility of exploring topological nodal-chain semimetal phases in optical lattices.
description: 9 pages, 3 figures
Quantum versus classical statistical dynamics of an ultracold Bose gas
Creators: name: Berges, J.
name: Gasenzer, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the conditions under which quantum fluctuations are relevant for the quantitative interpretation of experiments with ultracold Bose gases. This requires to go beyond the description in terms of the Gross-Pitaevskii and Hartree-Fock-Bogoliubov mean-field theories, which can be obtained as classical (statistical) field-theory approximations of the quantum many-body problem. We employ functional-integral techniques based on the two-particle irreducible (2PI) effective action. The role of quantum fluctuations is studied within the nonperturbative 2PI 1/N expansion to next-to-leading order. At this accuracy level memory-integrals enter the dynamic equations, which differ for quantum and classical statistical descriptions. This can be used to obtain a 'classicality' condition for the many-body dynamics. We exemplify this condition by studying the nonequilibrium evolution of a 1D Bose gas of sodium atoms, and discuss some distinctive properties of quantum versus classical statistical dynamics.
description: 19 pages, 10 figures
Error Propagation Analysis for Multithreaded Programs: An Empirical Approach
Creators: name: Winter, Stefan
name: Chan, Abraham
name: Saissi, Habib
name: Pattabiraman, Karthik
name: Suri, Neeraj
Publisher: name: arXiv
Year: 2023
Subjects: subject: Software Engineering (cs.SE)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Fault injection is a technique to measure the robustness of a program to errors by introducing faults into the program under test. Following a fault injection experiment, Error Propagation Analysis (EPA) is deployed to understand how errors affect a program's execution. EPA typically compares the traces of a fault-free (golden) run with those from a faulty run of the program. While this suffices for deterministic programs, EPA approaches are unsound for multithreaded programs with non-deterministic golden runs. In this paper, we propose Invariant Propagation Analysis (IPA) as the use of automatically inferred likely invariants ("invariants" in the following) in lieu of golden traces for conducting EPA in multithreaded programs. We evaluate the stability and fault coverage of invariants derived by IPA through fault injection experiments across six different fault types and six representative programs that can be executed with varying numbers of threads. We find that stable invariants can be inferred in all cases, but their fault coverage depends on the application and the fault type. We also find that fault coverage for multithreaded executions with IPA can be even higher than for traditional singlethreaded EPA, which emphasizes that IPA results cannot be trivially extrapolated from traditional EPA results.
description: Extended version of conference paper, originally published in the proceedings of ICST'17 (see: https://ieeexplore.ieee.org/document/7927974)
Rubidium abundances of galactic disk stars
Creators: name: Takeda, Yoichi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Spectroscopic determinations of Rubidium abundances were conducted by applying the spectrum fitting method to the Rb I 7800 line for an extensive sample of ~500 late-type dwarfs as well as giants (including Hyades cluster stars) belonging to the galactic disk population, with an aim of establishing the behaviour of [Rb/Fe] ratio for disk stars in the metallicity range of -0.65500K; this means that the results for mid-G to F stars (including the Sun) are not reliable (i.e., more or less overestimated), which might be due to some imperfect treatment of surface convection in classical model atmospheres. As such, it was decided to confine only to late-G and K stars at Teff<5500K and adopt the solar-system (meteoritic) value as the reference Rb abundance. The [Rb/Fe] vs.[Fe/H] relations derived for field dwarfs and giants turned out to be consistent with each other, showing a gradual increase of [Rb/Fe] with a decrease in [Fe/H] (with d[Rb/Fe]/d[Fe/H] gradient of ~-0.4 around the solar metallicity), which is favourably compared with the theoretical prediction of chemical evolution models. Accordingly, this study could not confirm the anomalous behaviour of [Rb/Fe] ratio (tending to be subsolar but steeply increasing toward supersolar metallicity) recently reported for M dwarf stars of -0.3
description: 24 pages, 13 figures, accepted for publication in Astronomische Nachrichten, with supplementary online material
Statistical domain wall roughness analysis through correlations
Creators: name: Domenichini, P.
name: Pasquini, G.
name: Capeluto, M. G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The geometry and morphology of magnetic domain walls (DWs) are closely related to their dynamics when driven by external forces. Under some reliable approximations DWs can be considered self-affine interfaces, so universal laws govern their behavior. On the other hand, large-scale DW structure has been less explored so far. Recently, it has been shown that bubble-like magnetic domains can be strongly deformed on a large scale by applying alternating (ac) magnetic field pulses. In the present work, we conduct a comprehensive analysis of DW structure at both small and large length scales in bubble-like domains present in ferromagnetic thin films with perpendicular anisotropy, focusing on its initial evolution under the application of ac magnetic pulses. Results obtained from the widely used roughness correlation function B(r) and its corresponding structure factor, are consistent with those obtained from the spatial autocorrelation function of DW fluctuations. Whereas the roughness exponent slightly increases during the ac evolution, a strong deformation is observed at a large scale, where a striking periodicity (statistically speaking) is observed. This period is probably determined by the boundary conditions and a characteristic intrinsic length.
description: 12 pages, 8 figures
Sex offender recidivism in the United States: why the implementation of SORNA is ineffective in reducing recidivism
Creators: name: Crenny, Olivia
Publisher: name: No Publisher Supplied
Year: 2021

description: Convicted sex offenders encounter some of the most difficult penalties for their crime. These penalties have a significant impact on the likelihood of recidivism. There are a number of ways that an individual can become a convicted sex offender. Under the Sex Offender Registration and Notification Act (SORNA), once an individual is convicted of a sex offense, the individual must register to a public registry that informs the neighboring public that there is a convicted sex offender living near a certain area. By registering to the public sex offender registry, citizens of the area in which the convicted sex offender resides are notified. Criminological theories may help explain why a person may be pressured to recidivate after their initial conviction. Furthermore, there are certain restrictions to where a sex offender can reside and to what type of employment a sex offender is allowed to obtain. There are also many arguments claiming that public registration is unconstitutional. Research shows that the collateral damages of the public registration of sex offenders is more harmful to an individual’s likelihood of successful reintegration. Research also shows that the collateral damages of the public sex offender registries cause the public registries to be ineffective. There are alternative ways to properly reintegrate convicted sex offenders while still keeping the public safe.
Feedback Linearization Control for Systems with Mismatched Uncertainties via Disturbance Observers
Creators: name: Kayacan, Erkan
name: Fossen, Thor I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper focuses on a novel feedback linearization control (FLC) law based on a self-learning disturbance observer (SLDO) to counteract mismatched uncertainties. The FLC based on BNDO (FLC-BNDO) demonstrates robust control performance only against mismatched time-invariant uncertainties while the FLC based on SLDO (FLC-SLDO) demonstrates robust control performance against mismatched time-invariant and -varying uncertainties, and both of them maintain the nominal control performance in the absence of mismatched uncertainties. In the estimation scheme for the SLDO, the BNDO is used to provide a conventional estimation law, which is used as being the learning error for the type-2 neuro-fuzzy system (T2NFS), and T2NFS learns mismatched uncertainties. Thus, the T2NFS takes the overall control of the estimation signal entirely in a very short time and gives unbiased estimation results for the disturbance. A novel learning algorithm established on sliding mode control theory is derived for an interval type-2 fuzzy logic system. The stability of the overall system is proven for a second-order nonlinear system with mismatched uncertainties. The simulation results show that the FLC-SLDO demonstrates better control performance than the traditional FLC, FLC with an integral action (FLC-I) and FLC-BNDO.
Magnetization and EPR studies of the single molecule magnet Ni$_4$ with integrated sensors
Creators: name: de Loubens, G.
name: Chaves, G. D.
name: Kent, A. D.
name: Ramsey, C.
name: del Barco, E.
name: Beedle, C.
name: Hendrickson, D. N.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Integrated magnetic sensors that allow simultaneous EPR and magnetization measurements have been developed to study single molecule magnets. A high frequency microstrip resonator has been integrated with a micro-Hall effect magnetometer. EPR spectroscopy is used to determine the energy splitting between the low lying spin-states of a Ni$_4$ single crystal, with an S=4 ground state, as a function of applied fields, both longitudinal and transverse to the easy axis at 0.4 K. Concurrent magnetization measurements show changes in spin-population associated with microwave absorption. Such studies enable determination of the energy relaxation time of the spin system.
description: 4 pages, 4 figures, accepted for publication (Proceedings of the 10th Joint MMM/Intermag Conference, which will be published as special issues of the Journal of Applied Physics)