cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The creation of two-dimensional composite solitons in spin-orbit-coupled self-attractive Bose-Einstein condensates in free space
Creators: name: Sakaguchi, Hidetsugu
name: Li, Ben
name: Malomed, Boris A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: It is commonly known that two-dimensional mean-field models of optical and matter waves with the cubic self-attraction cannot produce stable solitons in free space because of the occurrence of the collapse in the same setting. By means of the numerical analysis and variational approximation, we demonstrate that the two-component model of the Bose-Einstein condensate, with the spin-orbit Rashba coupling and cubic attractive interactions, gives rise to solitary-vortex complexes of two types: semi-vortices (SVs, with a vortex in one component and a fundamental soliton in the other), and mixed modes (MMs, with topological charges 0 and +1/-1 mixed in both components). These two- dimensional composite modes can be created using the trapping harmonic-oscillator (HO) potential, but remain stable in the free space, if the trap is gradually removed. The SVs and MMs realize the ground state of the system, provided that the self-attraction in the two components is, respectively, stronger or weaker than the cross-attraction between them. The SVs and MMs which are not the ground state are subject to a drift instability. In the free space (in the absence of the HO trap), modes of both types degenerate into unstable Townes solitons when their norms attain the respective critical values, while there is no lower existence threshold for the stable modes. Moving free-space stable solitons are also found in the present non-Galilean-invariant system, up to a critical velocity. Collisions between two moving solitons lead to their merger into a single one.
description: Physical Review E, in press
A comprehensive empirical power comparison of univariate goodness-of-fit tests for the Laplace distribution
Creators: name: Desgagné, Alain
name: de Micheaux, Pierre Lafaye
name: Ouimet, Frédéric
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: In this paper, we present the results from an empirical power comparison of 40 goodness-of-fit tests for the univariate Laplace distribution, carried out using Monte Carlo simulations with sample sizes n = 20, 50, 100, 200, significance levels α=0.01,0.05,0.10, and 400 alternatives consisting of asymmetric and symmetric light/heavy-tailed distributions taken as special cases from 11 models. In addition to the unmatched scope of our study, an interesting contribution is the proposal of an innovative design for the selection of alternatives. The 400 alternatives consist of 20 specific cases of 20 submodels drawn from the main 11 models. For each submodel, the 20 specific cases corresponded to parameter values chosen to cover the full power range. An analysis of the results leads to a recommendation of the best tests for five different groupings of the alternative distributions. A real-data example is also presented, where an appropriate test for the goodness-of-fit of the univariate Laplace distribution is applied to weekly log-returns of Amazon stock over a recent 4-year period.
Hydroclimatic time series features at multiple time scales
Creators: name: Papacharalampous, Georgia
name: Tyralis, Hristos
name: Markonis, Yannis
name: Hanel, Martin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applications (stat.AP)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: A comprehensive understanding of the behaviours of the various geophysical processes and an effective evaluation of time series (else referred to as "stochastic") simulation models require, among others, detailed investigations across temporal scales. In this work, we propose a novel and detailed methodological framework for advancing and enriching such investigations in a hydroclimatic context. This specific framework is primarily based on a new feature compilation for multi-scale hydroclimatic analyses, and can facilitate largely interpretable feature investigations and comparisons in terms of temporal dependence, temporal variation, "forecastability", lumpiness, stability, nonlinearity (and linearity), trends, spikiness, curvature and seasonality. Multifaceted characterizations are herein obtained by computing the values of the proposed feature compilation across nine temporal resolutions (i.e., the 1-day, 2-day, 3-day, 7-day, 0.5-month, 1-month, 2-month, 3-month and 6-month ones) and three hydroclimatic time series types (i.e., temperature, precipitation and streamflow) for 34-year-long time series records originating from 511 geographical locations across the contiguous United States. Based on the acquired information and knowledge, similarities and differences between the examined time series types with respect to the evolution patterns characterizing their feature values with increasing (or decreasing) temporal resolution are identified. Moreover, the computed features are used as inputs to unsupervised random forests for detecting any meaningful clusters between the examined hydroclimatic time series. This clustering plays an illustrative role within this research, as it facilitates the identification of spatial patterns (with them consisting an important scientific target in hydroclimatic research) and their cross-scale comparison...
Amalia Galdi, Amalfi, Fondazione del Centro Studi sull’Alto Medioevo, Spoleto 2018 (Il Medioevo nelle città italiane 15), pp. VI-167, tavv. f.t. 16. ISBN 9788868091613
Creators: name: Feniello, Amedeo
Publisher: name: Università degli Studi di Salerno
Year: 2018
Subjects: Città italiane; Costiera amalfitana

description: Schola Salernitana - Annali, Vol 23 (2018)
Goldstone and Higgs modes of photons inside a cavity
Creators: name: Yu, Yi-Xiang
name: Ye, Jinwu
name: Liu, Wuming
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Goldstone and Higgs modes have been detected in various condensed matter, cold atom and particle physics experiments. Here, we demonstrate that the two modes can also be observed in optical systems with only a few (artificial) atoms inside a cavity. We establish this connection by studying the $ U(1)/Z_2 $ Dicke model where $ N $ qubits (atoms) coupled to a single photon mode. We determine the Goldstone and Higgs modes inside the super-radiant phase and their corresponding spectral weights by performing both $ 1/J=2/N $ expansion and exact diagonization (ED) study at a finite $ N $. We find nearly perfect agreements between the results achieved by the two approaches when $ N $ gets down even to $ N = 2 $. The quantum finite size effects at a few qubits make the two modes quite robust against an effectively small counter-rotating wave term. We present a few schemes to reduce the critical coupling strength, so the two modes can be observed in several experimental systems of (artificial) atoms inside a cavity by just conventional optical measurements.
description: 8 pages, 5 figures
Strongly fluctuating fermionic superfluid in attractive π-flux Hubbard model
Creators: name: Wu, Ya-Jie
name: Zhou, Jiang
name: Kou, Su-Peng
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Ultracold atoms in optical lattice provides a platform to realize the superfluid (SF) state, a quantum order with paired charge-neutral fermions. In this paper, we studied SF state in the twodimensional attractive Hubbard model with pi-flux on each plaquette. The SF state in the pi-flux lattice model suffers very strong quantum fluctuations and the ground state becomes a possible quantum phase liquid state. In this phase, there exists the Cooper pairing together with a finite energy gap for the atoms, but no long range SF phase coherence exists at zero temperature. In addition, we discussed the properties of the SF vortices.
description: 11 pages, 8 figures
Locoregional treatment of primary tumor in synchronous metastatic head and neck squamous cell carcinomas
Creators: name: Tang, Eliane
name: Schwartz, Boris
name: Limkin, Elaine
name: Even, Caroline
name: Blanchard, Pierre
name: Haddy, Nadia
name: Gorphe, Philippe
name: Ferrand, François-Régis
name: Tao, Yungan
name: Nguyen, Thanh-Van-France
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Hematology

description: Patients with synchronous metastatic head and neck squamous cell carcinomas (mHNSCC) are at risk of locoregional progression associated with significant morbidity and mortality. The aim of this study is to assess whether the addition of aggressive locoregional treatment to systemic therapy could be associated with an improved overall survival (OS) compared to systemic therapy alone in upfront mHNSCC patients. This retrospective study included patients presenting with previously untreated mHNSCC who underwent first-line systemic therapy at a single institution between 1998 and 2018. Locoregional treatment was defined as either exclusive locoregional radiotherapy (RT) or surgery with or without adjuvant RT. One hundred forty-eight patients were included. Eighty patients were treated with systemic therapy alone and 68 patients were treated with a combination of locoregional treatment and systemic therapy. Median overall survival (OS) was 13 months [10.7–15] and median progression free survival (PFS) was 7.7 month [6.5–8.9]. The addition of a locoregional treatment to systemic therapy compared to systemic therapy alone was associated with improved survival (1-year OS, 65.8% vs. 41.1%, p < .001, and 1-year PFS, 42.5% vs. 18.5%, p < .001). Moreover, RT dose equal to 70 Gy was associated with even longer OS compared to a RT dose below 70 Gy and to no locoregional treatment (23.4 vs. 12.7 vs 7.5 months respectively). In a subgroup analysis on 75 patients presenting with a responding or stable metastatic disease after first-line systemic therapy, oropharyngeal primary tumor site and the addition of a locoregional treatment, especially a high radiation dose of 70 Gy, were evidenced as independent prognostic factors for improved OS. The addition of a high-dose RT locoregional treatment to systemic therapy is associated with prolonged OS in patients with synchronous mHNSCC and should be discussed for patients who respond to or have a stable disease after first-line systemic therapy.
New inequalities for quantum von Neumann and tomographic mutual information
Creators: name: Man'ko, V. I.
name: Markovich, L. A
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Entropic inequalities related to the quantum mutual information for bipartite system and tomographic mutual information is studied for Werner state of two qubits. Quantum correlations corresponding to entanglement properties of the qubits in Werner state are discussed.
description: 9 pages, 4 figures
Bound on Quantum Fluctuations in Gravitational Waves from LIGO-Virgo
Creators: name: Hertzberg, Mark P.
name: Litterer, Jacob A.
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 - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We derive some of the central equations governing quantum fluctuations in gravitational waves, making use of general relativity as a sensible effective quantum theory at large distances. We begin with a review of classical gravitational waves in general relativity, including the energy in each mode. We then form the quantum ground state and coherent state, before then obtaining an explicit class of squeezed states. Since existing gravitational wave detections arise from merging black holes, and since the quantum nature of black holes remains puzzling, one can be open-minded to the possibility that the wave is in an interesting quantum mechanical state, such as a highly squeezed state. We compute the time and space two-point correlation functions for the quantized metric perturbations. We then constrain its amplitude with LIGO-Virgo observations. Using existing LIGO-Virgo data, we place a bound on the (exponential) squeezing parameter of the quantum gravitational wave state of $ζ< 41$.
description: 11 pages, 3 figures, in double column format. V2: Updated introduction and referencing. V3: Updated towards version published in JCAP
A note on the nuclear dimension of Cuntz-Pimsner $C^*$-algebras associated with minimal shift spaces
Creators: name: He, Zhuofeng
name: Wei, Sihan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Operator Algebras (math.OA)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: Primary 46L05, 37A55

description: For every one-sided shift space $X$ over a finite alphabet, left special elements are those points in $X$ having at least two preimages under the shift operation. In this paper, we show that the Cuntz-Pimsner $C^*$-algebra $\mathcal{O}_X$ has nuclear dimension 1 when $X$ is minimal and the number of left special elements in $X$ is finite. This is done by describing thoroughly the cover of $X$ which also recovers an exact sequence, discovered before by T. Carlsen and S. Eilers.
description: 21 pages, final version, accepted by Canad. J. Math
Quantum dynamics far from equilibrium: a case study in the spherical model
Creators: name: Henkel, Malte
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The application of quantum Langevin equations for the study of non-equilibrium relaxations is illustrated in the exactly solved quantum spherical model. Tutorial sections on the physical background of non-markovian quantum noise, the spherical model quantum phase transition, the long-time limit of the quantum Langevin equation of the spherical model and physical ageing are followed by a brief review of the solution of the non-markovian time-dependent spherical constraint and about the consequences for quantum ageing at zero temperature, after a quantum quench.
description: 1+17 pp, 6 figures. Conference proceedings of LT-14, based on arXiv:1809.08975 and arXiv:2106.08237
QISHLOQ TURIZMINING IQTISODIY RIVOJLANISHDAGI AHAMIYATI
Creators: name: Olimjonova, Farog'at
Publisher: name: Zenodo
Year: 2024

description: Mazkur maqolada qishloq turizmini rivojlantirish imkoniyatlari va bosqichlari hamda uning tarkibiy qismlari toʻliq yoritilgan.turizm sohasida  qishloq turizmining afzalliklaridan foydalanish imkoniyatlari. Turizim keng rivojlanib kelayotgan, serdaromad sohalardan biridir
Increased toxicities associated with dose escalation of stereotactic body radiation therapy in prostate cancer: results from a phase I/II study
Creators: name: Hirata, Takero
name: Suzuki, Osamu
name: Otani, Keisuke
name: Miyake, Akimitsu
name: Tamari, Keisuke
name: Seo, Yuji
name: Isohashi, Fumiaki
name: Kai, Naoki
name: Hatano, Koji
name: Fujita, Kazutoshi
name: Uemura, Motohide
name: Imamura, Ryoichi
name: Tamenaga, Setsuo
name: Yoshino, Yutaro
name: Fumimoto, Yasutoshi
name: Yoshioka, Yasuo
name: Nonomura, Norio
name: Ogawa, Kazuhiko
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: This dose-escalation study evaluated the toxicity and efficacy of different stereotactic body radiation therapy (SBRT) doses for selecting an optimal dose for prostatic adenocarcinoma (PCa). This clinical trial was registered at UMIN (UMIN000014328). Patients with low- or intermediate-risk PCa were equally assigned to 3 SBRT dose levels: 35, 37.5, and 40 Gy per 5 fractions. The primary endpoint was the occurrence rate of late grade ≥2 genitourinary (GU) and gastrointestinal (GI) adverse events at 2 years, while the secondary endpoint was the 2-year biochemical relapse-free (bRF) rate. Adverse events were evaluated using the Common Terminology Criteria for Adverse Events version 4.0. Seventy-five patients (median age, 70 years) were enrolled from March 2014 to January 2018, of whom 10 (15%) and 65 (85%) had low- and intermediate-risk PCa, respectively. The median follow-up time was 48 months. Twelve (16%) patients received neoadjuvant androgen deprivation therapy. The 2-year occurrence rates of grade 2 late GU and GI toxicities were 34 and 7% in all cohorts, respectively (35 Gy: 21 and 4%; 37.5 Gy: 40 and 14%; 40 Gy: 42 and 5%). The occurrence risk of GU toxicities significantly increased with dose escalation (p = 0.0256). Grades 2 and 3 acute GU toxicities were observed in 19 (25%) and 1 (1%), respectively. Grade 2 acute GI toxicity was observed in 8 (11%) patients. No grade ≥3 GI or ≥4 GU acute toxicity or grade ≥3 late toxicity was observed. Clinical recurrence was detected in 2 patients. An SBRT dose of 35 Gy per 5 fractions is less likely to cause adverse events in patients with PCa than 375- and 40-Gy SBRT doses. Higher doses of SBRT should be applied with caution.
Tabling, Rational Terms, and Coinduction Finally Together!
Creators: name: Mantadelis, Thepfrastos
name: Rocha, Ricardo
name: Moura, Paulo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: To appear in Theory and Practice of Logic Programming (TPLP). Tabling is a commonly used technique in logic programming for avoiding cyclic behavior of logic programs and enabling more declarative program definitions. Furthermore, tabling often improves computational performance. Rational term are terms with one or more infinite sub-terms but with a finite representation. Rational terms can be generated in Prolog by omitting the occurs check when unifying two terms. Applications of rational terms include definite clause grammars, constraint handling systems, and coinduction. In this paper, we report our extension of YAP's Prolog tabling mechanism to support rational terms. We describe the internal representation of rational terms within the table space and prove its correctness. We then use this extension to implement a tabling based approach to coinduction. We compare our approach with current coinductive transformations and describe the implementation. In addition, we present an algorithm that ensures a canonical representation for rational terms.
description: To appear in Theory and Practice of Logic Programming (TPLP)
Interior Kasparov product for $\varrho$-classes on Riemannian foliated bundles
Creators: name: Zenobi, Vito Felice
Publisher: name: arXiv
Year: 2022
Subjects: subject: Differential Geometry (math.DG)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics

description: Let $ι\colon \mathcal{F}_0\to\mathcal{F}_1 $ be a suitably oriented inclusion of foliations over a manifold $M$, then we extend the construction of the lower shriek maps given by Hilsum and Skandalis to adiabatic deformation groupoid C*-algebras: we construct an asymptotic morphism $(ι_{ad}^{[0,1)})_!\in E_n\left(C^*(G_{ad}^{[0,1)}), C^*(H_{ad}^{[0,1)})\right)$, where $G$ and $H$ are the monodromy groupoids associated with $\mathcal{F}_0$ and $\mathcal{F}_1$ respectively. Furthermore, we prove an interior Kasparov product formula for foliated $\varrho$-classes associated with longitudinal metrics of positive scalar curvature in the case of Riemannian foliated bundles.
description: 33 pages. In the second version typos have been corrected
Entropic Dynamics: an Inference Approach to Quantum Theory, Time and Measurement
Creators: name: Caticha, Ariel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We review the derivation of quantum theory as an application of entropic methods of inference. The new contribution in this paper is a streamlined derivation of the Schrödinger equation based on a different choice of microstates and constraints.
description: Invited paper presented at the EmQM13 Workshop on Emergent Quantum Mechanics, Austrian Academy of Sciences (October 3-6, 2013, Vienna)
Comment on Ihle, "Towards a quantitative kinetic theory of polar active matter"
Creators: name: Bertin, Eric
name: Chaté, Hugues
name: Ginelli, Francesco
name: Grégoire, Guillaume
name: Léonard, Sébastien
name: Peshkov, Anton
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A comment on the preprint "Towards a quantitative kinetic theory of polar active matter" by T. Ihle, arXiv:1401.8056.
title: Melt productivity of aluminous anatectic rocks of the central Grenville Province and characterization of potential anatectic granite layers
Creators: name: Mendoza Marin, Daniela
Publisher: name: Memorial University of Newfoundland
Year: 2023

description: Partial melting of middle to lower crust plays an important role in the evolution of large
hot orogens and is a major source of S-type granites in orogenic crust. However, such granites
seem to be scarce in the Mesoproterozoic Grenville Province. This project explores the melt
productivity of aluminous anatectic rocks of the central Grenville Province, focusing mainly on
metapelites of the Plus Value Complex (PLV; mid-P belt) that were metamorphosed during the
Ottawan phase of the Grenvillian orogeny, and on leucocratic layers and scarce granite exposures
of potentially anatectic origin. The mineral assemblage of the PLV metapelites is consistent with
the biotite dehydration melting reaction: biotite + Al-silicate ± plagioclase + quartz = garnet + Kfeldspar + melt, and its good preservation is suggestive of significant melt loss during prograde
metamorphism. Based on phase equilibria modelling, maximum P–T conditions of about ~10.6–
10.7 kb and 860–903 °C, and moderate gradient P–T paths, are inferred. Additionally, phase
equilibria modelling predicts that the rocks produced up to 45% of melt with  6–8% having
remained in situ. With increasing T the modelled melts show a general increase in K2O and
decrease in Na2O, an evolution from granodioritic to monzogranitic compositions, and an increase
in peraluminosity. Broadly similar trends are also observed in modelled melts using other types of
mid-P aluminous rocks from the wider area, and high-P rocks from structurally lower levels. On
the other hand, leucocratic layers associated with the PLV metapelites and the granite exposures
have minor amounts of garnet, biotite, and (in some cases), sillimanite, and are peraluminous and
monzogranites. Monazite in the PLV granites show morphologies and chemical patterns ranging
from complex, consistent with several episodes of growth and resorption, to simple, and provide
evidence for growth (of part of the monazites, at least) in the presence of melt. Dominant 206Pb/238U
monazite ages range from 1062 ± 17 to 1033 ± 10 Ma and are similar to those of the metamorphic
ages of the PLV aluminous rocks (1080 – 1040 Ma) reported from the literature. Even though
processes such as mixing of melts, fractional crystallization and wall-rock contamination are not
assessed, the PLV granites seem to be related to the PLV aluminous rocks. They most likely
represent melts produced by the biotite melting reaction and could be the first documented S-type
granites of Ottawan age in the central Grenville Province
Dynamic properties of bright points in an active region
Creators: name: Keys, Peter H.
name: Mathioudakis, Mihalis
name: Jess, David B.
name: Mackay, Duncan H.
name: Keenan, Francis P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. Bright points (BPs) are small-scale, magnetic features ubiquitous across the solar surface. Previously, we have observed and noted their properties for quiet Sun regions. Here, we determine the dynamic properties of BPs using simultaneous quiet Sun and active region data. Methods. High spatial and temporal resolution G-band observations of active region AR11372 were obtained with the Rapid Oscillations in the Solar Atmosphere instrument at the Dunn Solar Telescope. Three subfields of varying polarity and magnetic flux density were selected with the aid of magnetograms obtained from the Helioseismic and Magnetic Imager on board the Solar Dynamics Observatory. Bright points within these subfields were subsequently tracked and analysed. Results. It is found that BPs within active regions display attenuated velocity distributions with an average horizontal velocity of ~0.6 km/s, compared to the quiet region which had an average velocity of 0.9 km/s. Active region BPs are also ~21% larger than quiet region BPs and have longer average lifetimes (~132s) than their quiet region counterparts (88 s). No preferential flow directions are observed within the active region subfields. The diffusion index (gamma) is estimated at ~1.2 for the three regions. Conclusions. We confirm that the dynamic properties of BPs arise predominately from convective motions. The presence of stronger field strengths within active regions is the likely reason behind the varying properties observed. We believe that larger amounts of magnetic flux will attenuate BP velocities by a combination of restricting motion within the intergranular lanes and by increasing the number of stagnation points produced by inhibited convection. Larger BPs are found in regions of higher magnetic flux density and we believe that lifetimes increase in active regions as the magnetic flux stabilises the BPs.
description: Accepted for publication in A&A, 9 pages, 3 figures
المعوقات التي تحول دون تطبيق مشروع الاحتراف في كرة القدم الجزائرية Obstacles that prevent the implementation of the project of professionalism in Algerian football
Creators: name: بوديسة, لمياء
name: قعقاع, توفيق
name: ناصر باي, كريمة
Publisher: name: Zenodo
Year: 2023
Subjects: Obstacles to Professionalism, Professionalism Project, Algerian Football.

description: The research aimed to identify the most important obstacles to mathematical professionalism, and theresearcher used the descriptive approach where the research sample was chosen randomly, and the totalresearch sample was (31 some club heads). The researcher used the SPSS program to conduct statistical treatments, and the researcher concluded that the first axis is "bad Managing the financial side leads to weak professionalism. The phrase came to be moral and thus there is a clear absence on the financial side, and the second axis came, “random administrative management is a reason to impede professionalism.” The phrase came to be moral and therefore there is an administrative weakness, and the most important  recommendations were to develop strategic plans for the professionalism system according to the methods and methods Football Science
Well-Posedness for the Motion of Physical Vacuum of the Three-dimensional Compressible Euler Equations with or without Self-Gravitation
Creators: name: Luo, Tao
name: Xin, Zhouping
name: Zeng, Huihui
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: This paper concerns the well-posedness theory of the motion of physical vacuum for the compressible Euler equations with or without self-gravitation. First, a general uniqueness theorem of classical solutions is proved for the three dimensional general motion. Second, for the spherically symmetric motions, without imposing the compatibility condition of the first derivative being zero at the center of symmetry, a new local-in-time existence theory is established in a functional space involving less derivatives than those constructed for three-dimensional motions in \cite{10',7,16'} by constructing suitable weights and cutoff functions featuring the behavior of solutions near both the center of the symmetry and the moving vacuum boundary.
description: To appear in Arch. Rational Mech. Anal
Quantifying the presence of a neutron in the paths of an interferometer
Creators: name: Lemmel, Hartmut
name: Geerits, Niels
name: Danner, Armin
name: Hasegawa, Yuji
name: Hofmann, Holger F.
name: Sponar, Stephan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is commonly assumed that no accurate experimental information can be obtained on the path taken by a particle when quantum interference between the paths is observed. However, recent progress in the measurement and control of quantum systems may provide the missing information by circumventing the conventional uncertainty limits. Here, we experimentally investigate the possibility that an individual neutron moving through a two-path interferometer may actually be physically distributed between the two paths. For this purpose, it is important to distinguish between the probability of finding the complete particle in one of the paths and the distribution of an individual particle over both paths. We accomplish this distinction by applying a magnetic field in only one of the paths and observing the exact value of its effect on the neutron spin in the two output ports of the interferometer. The results show that individual particles experience a specific fraction of the magnetic field applied in one of the paths, indicating that a fraction or even a multiple of the particle was present in the path before the interference of the two paths was registered. The obtained path presence equals the weak value of the path projector and is not a statistical average but applies to every individual neutron, verified by the recently introduced method of feedback compensation.
Large resistivity in numerical simulations of radially self-similar outflows
Creators: name: Čemeljić, Miljenko
name: Vlahakis, Nektarios
name: Tsinganos, Kanaris
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate the differences between an outflow in a highly-resistive accretion disk corona, and the results with smaller or vanishing resistivity. For the first time, we determine conditions at the base of a two-dimensional radially self-similar outflow in the regime of very large resistivity. We performed simulations using the {\sc pluto} magnetohydrodynamics code, and found three modes of solutions. The first mode, with small resistivity, is similar to the ideal-MHD solutions. In the second mode, with larger resistivity, the geometry of the magnetic field changes, with a "bulge" above the super-fast critical surface. At even larger resistivities, the third mode of solutions sets in, in which the magnetic field is no longer collimated, but is pressed towards the disk. This third mode is also the final one: it does not change with further increase of resistivity. These modes describe topological change in a magnetic field above the accretion disk because of the uniform, constant Ohmic resistivity.
description: accepted in MNRAS
Triangular-Grid Billiards and Plabic Graphs
Creators: name: Defant, Colin
name: Jiradilok, Pakawut
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05D99, 51M04, 52B60

description: Given a polygon $P$ in the triangular grid, we obtain a permutation $π_P$ via a natural billiards system in which beams of light bounce around inside of $P$. The different cycles in $π_P$ correspond to the different trajectories of light beams. We prove that \[\text{area}(P)\geq 6\text{cyc}(P)-6\quad\text{and}\quad\text{perim}(P)\geq\frac{7}{2}\text{cyc}(P)-\frac{3}{2},\] where $\text{area}(P)$ and $\text{perim}(P)$ are the (appropriately normalized) area and perimeter of $P$, respectively, and $\text{cyc}(P)$ is the number of cycles in $π_P$. The inequality concerning $\text{area}(P)$ is tight, and we characterize the polygons $P$ satisfying $\text{area}(P)=6\text{cyc}(P)-6$. These results can be reformulated in the language of Postnikov's plabic graphs as follows. Let $G$ be a connected reduced plabic graph with essential dimension $2$. Suppose $G$ has $n$ marked boundary points and $v$ (internal) vertices, and let $c$ be the number of cycles in the trip permutation of $G$. Then we have \[v\geq 6c-6\quad\text{and}\quad n\geq\frac{7}{2}c-\frac{3}{2}.\]
description: 16 pages, 13 figures
Generating 3D Bio-Printable Patches Using Wound Segmentation and Reconstruction to Treat Diabetic Foot Ulcers
Creators: name: Chae, Han Joo
name: Lee, Seunghwan
name: Son, Hyewon
name: Han, Seungyeob
name: Lim, Taebin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Human-Computer Interaction (cs.HC)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: We introduce AiD Regen, a novel system that generates 3D wound models combining 2D semantic segmentation with 3D reconstruction so that they can be printed via 3D bio-printers during the surgery to treat diabetic foot ulcers (DFUs). AiD Regen seamlessly binds the full pipeline, which includes RGB-D image capturing, semantic segmentation, boundary-guided point-cloud processing, 3D model reconstruction, and 3D printable G-code generation, into a single system that can be used out of the box. We developed a multi-stage data preprocessing method to handle small and unbalanced DFU image datasets. AiD Regen's human-in-the-loop machine learning interface enables clinicians to not only create 3D regenerative patches with just a few touch interactions but also customize and confirm wound boundaries. As evidenced by our experiments, our model outperforms prior wound segmentation models and our reconstruction algorithm is capable of generating 3D wound models with compelling accuracy. We further conducted a case study on a real DFU patient and demonstrated the effectiveness of AiD Regen in treating DFU wounds.
description: Accepted to CVPR 2022
The irregularities of the sunspot cycle and their theoretical modelling
Creators: name: Choudhuri, Arnab Rai
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The 11-year sunspot cycle has many irregularities, the most promi- nent amongst them being the grand minima when sunspots may not be seen for several cycles. After summarizing the relevant observational data about the irregularities, we introduce the flux transport dynamo model, the currently most successful theoretical model for explaining the 11-year sunspot cycle. Then we analyze the respective roles of nonlinearities and random fluctuations in creating the irregularities. We also discuss how it has recently been realized that the fluctuations in meridional circula- tion also can be a source of irregularities. We end by pointing out that fluctuations in the poloidal field generation and fluctuations in meridional circulation together can explain the occurrences of grand minima.
description: Invited paper for the C.V. Raman 125th birth anniversary issue of Indian Journal of Physics
EVALUATING THE INFLUENCE OF DIGITAL TRANSFORMATION KEY DRIVERS IN SOUTH AFRICA'S PUBLIC SECTOR: A LITERATURE REVIEW
Creators: name: LINDELWA KOMNA
name: SABELO MPUNGOSE
Publisher: name: Zenodo
Year: 2024
Subjects: Digital Transformation, E-Government, Artificial Intelligence, Digital Skills, Digital Challenges, Digital Impact.

description: Abstract

Digital Transformation has been used as a tool to improve public service delivery around the globe. As a result, there are key drivers, like technological advancements, policy and regulatory frameworks, leadership capabilities, human capital development initiatives, and external pressures that seem to play significant role in order for such a transformation to be successful. The purpose of this study is to investigate these key drivers in the South African public sector from 2018 to 2024. This is a qualitative study where data was collected using the systematic review approach from journal articles, conference articles, and textbooks published from 2018 until 2024. The empirical literature was retrieved from databases like Google Scholar, Scopus, Zenodo, EBSCO, Sabinet and Emerald to address the three objectives of the study. The funnel approach was also used to review the literature from global, regional (Africa) and local (South Africa) perspectives. The findings from the study revealed the essential strategic actions like addressing keeping up with technological advancements, policy and regulatory frameworks, leadership capabilities, human capital development initiatives as well as addressing external pressures.
Accretion of the magnetized neutrino-cooled torus
Creators: name: Nouri, Fatemeh Hossein
name: Janiuk, Agnieszka
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Neutrino-cooled accretion flow around a black hole, produced by a compact binary merger, is a promising scenario for jet formation and magnetic-driven winds to explain short duration gamma ray bursts (GRBs) central engine and kilonovae based on GW170817 gravitational wave observation. Magnetorotational instability (MRI) turbulence and Blandford-Znajek (BZ) mechanism are expected to play key roles in the thermal equilibrium of the disk (balancing neutrino cooling) and in driving accretion and creating jets. Using the open-source GRMHD HARM-COOL code, we study the magnetically-driven evolution of an accretion disk with realistic equation of state in the fixed curved space-time background. We identify the effects of the neutrino cooling and the magnetic field, paying particular attention to the dynamical, thermal and composition evolution of the disk and outflows.
description: Polish Astronomical Society, PTA Meeting Proceedings 2021
REVIEWS: Prehistoric Britain: An illustrated survey, by Keith Branigan; Victorian and Edwardian Buckinghamshire, by Margaret Lawson and Ivan Sparkes; Buckingham, the loyal and ancient borough, by Douglas Elliott; A history of Chesham Bois, by L Elgar Pike
Creators: name: Elvey, Gerald
name: Elvey, Elizabeth
Publisher: name: Archaeology Data Service
Year: 2023

description: Records of Buckinghamshire, 20 (1), 146-147
REVIEWS: A Chesham century: The story of a town and its council 1894-1994, by Arnold Baines; The rise and fall of the Grenvilles, Dukes of Buckingham and Chandos 1720-1921, by John Beckett; The Rothschilds and Disraeli in Buckinghamshire, by David Kessler
Creators: name: Chenevix Trench, John
name: Bevington, Michael
Publisher: name: Archaeology Data Service
Year: 2023

description: Records of Buckinghamshire, 37, 179-181
Opportunities and Limitations in Broadband Sensing
Creators: name: Polloreno, Anthony M.
name: Beckey, Jacob L.
name: Levin, Joshua
name: Shlosberg, Ariel
name: Thompson, James K.
name: Foss-Feig, Michael
name: Hayes, David
name: Smith, Graeme
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We consider estimating the magnitude of a monochromatic AC signal that couples to a two-level sensor. For any detection protocol, the precision achieved depends on the signal's frequency and can be quantified by the quantum Fisher information. To study limitations in broadband sensing, we introduce the integrated quantum Fisher information and derive inequality bounds that embody fundamental tradeoffs in any sensing protocol. These inequalities show that sensitivity in one frequency range must come at a cost of reduced sensitivity elsewhere. For many protocols, including those with small phase accumulation and those consisting of $π$-pulses, we find the integrated Fisher information scales linearly with $T$. We also find protocols with substantial phase accumulation can have integrated QFI that grows quadratically with $T$, which is optimal. These protocols may allow the very rapid detection of a signal with unknown frequency over a very wide bandwidth.
Classifying orbits of the affine group over the integers
Creators: name: Cabrer, L. M.
name: Mundici, D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Group Theory (math.GR)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 37C85, 11B57, 22F05, 37A45, 06F20, 46L80

description: For each $n=1,2,\dots$, let $\mathsf{GL}(n,\mathbb{Z})\ltimes \mathbb{Z}^n$ be the affine group over the integers. For every point $x=(x_1,\dots,x_n) \in \mathbb{R}^n$ let $\mathrm{orb}(x)=\{γ(x)\in \mathbb{R}^n\midγ\in \mathsf{GL}(n,\mathbb{Z})\ltimes \mathbb{Z}^n\}.$ Let $G_{x}$ be the subgroup of the additive group $\mathbb R$ generated by $x_1,\dots,x_n, 1$. If $\mathrm{rank}(G_x)\neq n$ then $\mathrm{orb}(x)=\{y\in\mathbb{R}^n\mid G_y=G_x\}$. Thus,$G_x$ is a complete classifier of $\mathrm{orb}(x)$. By contrast, if $\mathrm{rank}(G_x)=n$, knowledge of $G_x$ alone is not sufficient in general to uniquely recover $\mathrm{orb}(x)$: as a matter of fact, $G_x$ determines precisely $\mathrm{max}(1,\frac{ϕ(d)}{2})$ different orbits, where $d$ is the denominator of the smallest positive nonzero rational in $G_x,$ and $ϕ$ is Euler function. To get a complete classification, rational polyhedral geometry provides an integer $1\leq c_x\leq \mathrm{max}(1,d/2)$ such that $\mathrm{orb}(y)=\mathrm{orb}(x) $ iff $(G_{x},c_{x})=(G_{y},c_{y})$.
SoftSNN: Low-Cost Fault Tolerance for Spiking Neural Network Accelerators under Soft Errors
Creators: name: Putra, Rachmad Vidya Wicaksana
name: Hanif, Muhammad Abdullah
name: Shafique, Muhammad
Publisher: name: arXiv
Year: 2022
Subjects: subject: Hardware Architecture (cs.AR)
subject: Machine Learning (cs.LG)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Specialized hardware accelerators have been designed and employed to maximize the performance efficiency of Spiking Neural Networks (SNNs). However, such accelerators are vulnerable to transient faults (i.e., soft errors), which occur due to high-energy particle strikes, and manifest as bit flips at the hardware layer. These errors can change the weight values and neuron operations in the compute engine of SNN accelerators, thereby leading to incorrect outputs and accuracy degradation. However, the impact of soft errors in the compute engine and the respective mitigation techniques have not been thoroughly studied yet for SNNs. A potential solution is employing redundant executions (re-execution) for ensuring correct outputs, but it leads to huge latency and energy overheads. Toward this, we propose SoftSNN, a novel methodology to mitigate soft errors in the weight registers (synapses) and neurons of SNN accelerators without re-execution, thereby maintaining the accuracy with low latency and energy overheads. Our SoftSNN methodology employs the following key steps: (1) analyzing the SNN characteristics under soft errors to identify faulty weights and neuron operations, which are required for recognizing faulty SNN behavior; (2) a Bound-and-Protect technique that leverages this analysis to improve the SNN fault tolerance by bounding the weight values and protecting the neurons from faulty operations; and (3) devising lightweight hardware enhancements for the neural hardware accelerator to efficiently support the proposed technique. The experimental results show that, for a 900-neuron network with even a high fault rate, our SoftSNN maintains the accuracy degradation below 3%, while reducing latency and energy by up to 3x and 2.3x respectively, as compared to the re-execution technique.
description: To appear at the 59th IEEE/ACM Design Automation Conference (DAC), July 2022, San Francisco, CA, USA
Entanglement Witness for the Weak Equivalence Principle
Creators: name: Bose, Sougato
name: Mazumdar, Anupam
name: Schut, Martine
name: Toroš, Marko
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Einstein equivalence principle is based on the equality of gravitational mass and inertial mass, which has led to the universality of a free-fall concept. The principle has been extremely well tested so far and has been tested with a great precision. However, all these tests and the corresponding arguments are based on a classical setup where the notion of position and velocity of the mass is associated with a classical value as opposed to the quantum entities. Here, we will provide a simple protocol based on creating large spatial superposition states in a laboratory to test the fully quantum regime of the equivalence principle where both matter and gravity are treated at par as a quantum entity. We will argue that such a quantum protocol is unique with regard to testing especially the generalization of the weak equivalence principle via witnessing quantum entanglement.
description: 7 pages
REVIEWS: Aldbury people 1885-1945, by Jean Davis; House history: A short guide to sources, by Buckinghamshire Record Office; Roman Milton Keynes: excavations and fieldwork 1971-1982, edited by Dennis Mynard
Creators: name: Chenevix Trench, John
name: Branigan, Keith
Publisher: name: Archaeology Data Service
Year: 2023

description: Records of Buckinghamshire, 30, 189-191
REVIEWS: Excavations at Great Linford, by Dennis Mynard and Bob Zeepvat; Great Marlow: Parish and people in the nineteenth century, by 'Marten'
Creators: name: Hurst, John G
name: Chenevix Trench, John
Publisher: name: Archaeology Data Service
Year: 2023

description: Records of Buckinghamshire, 34, 190-192
5 Reasons Why It's Important To Use Luxury Custom Packaging
Creators: name: Kerry, Jin
Publisher: name: Zenodo
Year: 2020
Subjects: Luxury Packaging
Branding
Packaging Boxes

description: Luxury custom packaging is all about giving your brand the best packaging presentation possible. For premium brands and top products, custom packaging goes well beyond the traditional utility and goes further into advanced artistic concepts and unique finishing touches on every product. You can turn your simple message into a unique and unforgettable experience by incorporating an eye-catching custom design to your product packaging, especially if you want your logo to stand out above the rest.