cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A new process for the pragmatic choice of wind models in complex terrain – quantification of "skill score" and "cost"
Creators: name: Barber, Sarah
name: Schubiger, Alain
name: Nordborg, Henrik
Publisher: name: Zenodo
Year: 2019
Subjects: Wind energy
Comparison metrics
Wind resource assessment
Computational fluid dynamics

description: In wind energy, the accuracy of the estimation of the wind resource has an enormous effect on the expected rate of return of a project. Due to the complex nature of the weather and of the wind flow over the earth’s surface, it can be very challenging to measure and model the wind resource correctly. For a given project, the modeller is faced with a difficult choice of a wide range of simulation tools with varying accuracies and costs. If this choice is made incorrectly, either many resources are wasted in needless high accuracy simulations, or the rate of return is incorrect and investors risk losing large amounts of money. As there are currently no guidelines or tools available to the modeller to help with this choice, it is usually left to gut feeling – and this can be catastrophic for investors or acquirers of wind parks. In this project, a decision tool is being developed to help modellers choose the most appropriate model for a particular wind energy related project. This involves firstly applying various simulation tools from WAsP (Wind Atlas Analysis and Application Model), RANS-CFD (Reynolds-Averaged Navier-Stokes Computational Fluid Dynamics), Detached Eddy Simulations (DES), and Large Eddy Simulations (LES) to the Lattice Boltzmann Method (LBM) to a range of test sites, defining appropriate comparison metrics and developing a draft process. Relevant comparison metrics include factors relating to the "skill" or accuracy of the model as well as those relating to its "cost" or complexity. In a second step, the simulation tools will be applied to a demonstration site in order to validate, demonstrate and improve the decision process. The goal of the work in the presentation is to investigate appropriate comparison metrics for the decision process by applying simulations carried out on the Bolund experiment blind comparison set-up.
Agile wide-field imaging with selective high resolution
Creators: name: Peng, Lintao
name: Bian, Liheng
name: Liu, Tiexin
name: Zhang, Jun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Wide-field and high-resolution (HR) imaging is essential for various applications such as aviation reconnaissance, topographic mapping and safety monitoring. The existing techniques require a large-scale detector array to capture HR images of the whole field, resulting in high complexity and heavy cost. In this work, we report an agile wide-field imaging framework with selective high resolution that requires only two detectors. It builds on the statistical sparsity prior of natural scenes that the important targets locate only at small regions of interests (ROI), instead of the whole field. Under this assumption, we use a short-focal camera to image wide field with a certain low resolution, and use a long-focal camera to acquire the HR images of ROI. To automatically locate ROI in the wide field in real time, we propose an efficient deep-learning based multiscale registration method that is robust and blind to the large setting differences (focal, white balance, etc) between the two cameras. Using the registered location, the long-focal camera mounted on a gimbal enables real-time tracking of the ROI for continuous HR imaging. We demonstrated the novel imaging framework by building a proof-of-concept setup with only 1181 gram weight, and assembled it on an unmanned aerial vehicle for air-to-ground monitoring. Experiments show that the setup maintains 120$^{\circ}$ wide field-of-view (FOV) with selective 0.45$mrad$ instantaneous FOV.
description: 12pages,6figures
Additional file 1 of Association of immune cell composition with the risk factors and incidence of acute coronary syndrome
Creators: name: Shi, Xian
name: Qu, Minghan
name: Jiang, Yi
name: Zhu, Ziwei
name: Dai, Chengguqiu
name: Jiang, Minghui
name: Ding, Lin
name: Yan, Yu
name: Wang, Chaolong
name: Zhang, Xiaomin
name: Cheng, Shanshan
name: Hao, Xingjie
Publisher: name: figshare
Year: 2023
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1. Figure S1. Histograms of immune cell proportions after arcsine square root transformation. Immune cell composition observed from routine blood tests (A) and estimated from DNA methylation profiles (B). Lym, lymphocyte proportion; Mono, monocyte proportion; Neu, neutrophil proportion; CD8T, CD8+ T cell proportion; CD4T, CD4+ T cell proportion; B, B cell proportion; and NK, natural killer cell proportion.
The Role of Elders in Child and Youth Care Education
Creators: name: Cooke-Dallin, Bruce
name: Rosborough, Trish
name: Underwood, Louise
Publisher: name: Canadian Journal of Native Education
Year: 2021

description: The development of postsecondary education programs for First Nations students in British Columbia has been accompanied by an ongoing discussion about the ap­proaches and components that are most effective. The authors add to this discussion through a description of the value ascribed to Elders in their traditional roles and as guest teachers in Child and Youth Care First Nations classes offered by Malaspina University-College. Particular emphasis is placed on issues concerning the location of courses and programs in relation to the communities where students will become practitioners in the future.
description: Canadian Journal of Native Education, Vol. 24 No. 2 (2000)
High Precision Control of Tracked Field Robots in the Presence of Unknown Traction Coefficients
Creators: name: Kayacan, Erkan
name: Young, Sierra N.
name: Peschel, Joshua M.
name: Chowdhary, Girish
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Accurate steering through crop rows that avoids crop damage is one of the most important tasks for agricultural robots utilized in various field operations, such as monitoring, mechanical weeding, or spraying. In practice, varying soil conditions can result in off-track navigation due to unknown traction coefficients so that it can cause crop damage. To address this problem, this paper presents the development, application, and experimental results of a real-time receding horizon estimation and control (RHEC) framework applied to a fully autonomous mobile robotic platform to increase its steering accuracy. Recent advances in cheap and fast microprocessors, as well as advances in solution methods for nonlinear optimization problems, have made nonlinear receding horizon control (RHC) and receding horizon estimation (RHE) methods suitable for field robots that require high frequency (milliseconds) updates. A real-time RHEC framework is developed and applied to a fully autonomous mobile robotic platform designed by the authors for in-field phenotyping applications in Sorghum fields. Nonlinear RHE is used to estimate constrained states and parameters, and nonlinear RHC is designed based on an adaptive system model which contains time-varying parameters. The capabilities of the real-time RHEC framework are verified experimentally, and the results show an accurate tracking performance on a bumpy and wet soil field. The mean values of the Euclidean error and required computation time of the RHEC framework are respectively equal to $0.0423$ m and $0.88$ milliseconds.
Noncommutative information is revealed from the static detector outside the black hole
Creators: name: Shi, Jingran
name: Liu, Yipeng
name: Zhang, Baocheng
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the transition behavior of the two-level atom as the Unruh-DeWitt detector outside a noncommutative black hole. When the mass of the black hole is small enough, the difference between the commutative and noncommutative black hole can be distinguished. In particular, an evident fluctuation appearing at a far distance from the horizon by calculating the quantum Fisher information of the transition rate with regard to the local Hawking temperature provides a novel and interesting result about the information extraction of the noncommutativity for a small-mass black hole.
Single particle spectra based of modern effective interactions
Creators: name: Barbieri, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The self-consistent Green's function method is applied to 16O using a G-matrix and Vucom as effective interactions, both derived from the Argonne v18 potential. The present calculations are performed in a larger model space than previously possible. The experimental single particle spectra obtained with the G-matrix are essentially independent of the oscillator length of the basis. The results shows that Vucom better reproduces spin-orbit splittings but tends to overestimate the gap at the Fermi energy.
description: 5 pages, 5 figures. Submitted to Phys. Lett. B
Comparison between Local Ensemble Transform Kalman Filter and PSAS in the NASA finite volume GCM: perfect model experiments
Creators: name: Liu, Junjie
name: Fertig, Elana Judith
name: Li, Hong
name: Kalnay, Eugenia
name: Hunt, Brian R.
name: Kostelich, Eric J.
name: Szunyogh, Istvan
name: Todling, Ricardo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: This paper explores the potential of Local Ensemble Transform Kalman Filter (LETKF) by comparing the performance of LETKF with an operational 3D-Var assimilation system, Physical-Space Statistical Analysis System (PSAS), under a perfect model scenario. The comparison is carried out on the finite volume Global Circulation Model (fvGCM) with 72 grid points zonally, 46 grid points meridionally and 55 vertical levels. With only forty ensemble members, LETKF obtains an analysis and forecasts with lower RMS errors than those from PSAS. The performance of LETKF is further improved, especially over the oceans, by assimilating simulated temperature observations from rawinsondes and conventional surface pressure observations instead of geopotential heights. An initial decrease of the forecast errors in the NH observed in PSAS but not in LETKF suggests that the PSAS analysis is less balanced. The observed advantage of LETKF over PSAS is due to the ability of the forty-member ensemble from LETKF to capture flow-dependent errors and thus create a good estimate of the true background uncertainty. Furthermore, localization makes LETKF highly parallel and efficient, requiring only 5 minutes per analysis in a cluster of 20 PCs with forty ensemble members.
description: 50 pages, 11 figures
Monogamy of Entanglement Measures Based on Fidelity in Multiqubit Systems
Creators: name: Gao, Limin
name: Yan, Fengli
name: Gao, Ting
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show exactly that the $α$th power of Bures measure of entanglement and geometric measure of entanglement, as special case of entanglement measures based on fidelity, obey a class of general monogamy inequalities in an arbitrary multiqubit mixed state for $α\geq1$.
description: 4 pages
title: Effect of violence and other social indicators on formidability preferences for male faces in Colombia
Creators: name: Borrás Guevara, Martha Lucia
Publisher: name: University of St Andrews
Year: 2019

description: Facial preferences have been studied in the context of variation in health, media access, education and environmental harshness. This thesis explored the potential influence of violence which has been largely neglected in previous research. Colombia was chosen as field site as it is one of the most violent countries in the world. In such a violent context, preferring partners or allies with greater fighting capacity becomes a matter of survival. Formidability (how big/strong someone is) is a reliable indicator of this capacity and, therefore may be preferred when protection from violence is desired. Facial masculinity and BMI (body mass index which is a measure of weight scaled for height) have been previously associated to fighting capacity. Hence preferences for these two physical traits were studied here. Study 1 explored whether perceptions/experiences of violence influenced masculinity preferences. Women who had experienced/perceived higher violence and who thought men were dangerous to their children preferred less masculine male faces. Violence affected preferences more than variables previously studied (health, access to media, education, etc.). Study 2 explored the effect of violence type: domestic and public. In a different population sample from study 1, it was found that the more women fear domestic violence the lower their facial preference for masculinity. Study 3 explored if public and domestic violence affects preferences for facial cues to BMI. Women considering men to be dangerous to their children showed lower preferences for male facial cues to BMI. Strengthening this finding, study 4 found that women with raised fear of domestic violence showed lower preferences for male facial cues to BMI. Contradicting the initial prediction, this thesis gives convergent evidence that violence perceptions have negative effects on women’s preferences for formidability in male faces. These preferences may reflect women’s strategy to avoid partners capable of inflicting physical harm to women and their children, particularly within the family household.
A Contrastive Variational Graph Auto-Encoder for Node Clustering
Creators: name: Mrabah, Nairouz
name: Bouguessa, Mohamed
name: Ksantini, Riadh
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Variational Graph Auto-Encoders (VGAEs) have been widely used to solve the node clustering task. However, the state-of-the-art methods have numerous challenges. First, existing VGAEs do not account for the discrepancy between the inference and generative models after incorporating the clustering inductive bias. Second, current models are prone to degenerate solutions that make the latent codes match the prior independently of the input signal (i.e., Posterior Collapse). Third, existing VGAEs overlook the effect of the noisy clustering assignments (i.e., Feature Randomness) and the impact of the strong trade-off between clustering and reconstruction (i.e., Feature Drift). To address these problems, we formulate a variational lower bound in a contrastive setting. Our lower bound is a tighter approximation of the log-likelihood function than the corresponding Evidence Lower BOund (ELBO). Thanks to a newly identified term, our lower bound can escape Posterior Collapse and has more flexibility to account for the difference between the inference and generative models. Additionally, our solution has two mechanisms to control the trade-off between Feature Randomness and Feature Drift. Extensive experiments show that the proposed method achieves state-of-the-art clustering results on several datasets. We provide strong evidence that this improvement is attributed to four aspects: integrating contrastive learning and alleviating Feature Randomness, Feature Drift, and Posterior Collapse.
On the proper reconstruction of complex dynamical systems spoilt by strong measurement noise
Creators: name: Boettcher, Frank
name: Peinke, Joachim
name: Kleinhans, David
name: Friedrich, Rudolf
name: Lind, Pedro G.
name: Haase, Maria
Publisher: name: arXiv
Year: 2006
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: This article reports on a new approach to properly analyze time series of dynamical systems which are spoilt by the simultaneous presence of dynamical noise and measurement noise. It is shown that even strong external measurement noise as well as dynamical noise which is an intrinsic part of the dynamical process can be quantified correctly, solely on the basis of measured times series and proper data analysis. Finally real world data sets are presented pointing out the relevance of the new approach.
Porrhotegaeidae Colloff 2023, fam. nov.
Creators: name: Colloff, Matthew J.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Oribatida
Porrhotegaeidae

description: Porrhotegaeidae fam. nov.
Type genus: Porrhotegaeus J. Balogh & Mahunka, 1966, p. 557.
Diagnosis. Lamellae broad, well developed, ovoid, with free cusps bearing one or two teeth, lacking translamella. Bothridia free, not fused with lamellae. With long blade-like humeral processes extending from lateral margin of notogaster at widest part to point mid-way along lamellae, lateral margin reflexed ventrally; humeral processes lacking lobes posterior of the main anterior structure. Tutorium broad, with a well-developed, curved point. Prodorsum waisted posterior of bothridium. Notogaster U-shaped, surface flat or concave, never convex; margins elevated above level of central notogaster; with eight or nine pairs of long notogastral setae positioned marginally and pointed dorsally. Pedotectum I sub-rectangular; pedotectum II sub-rectangular or lobe-like; discidium pointed. Anterior margin of pedotectum I and epimere I forming straight or curved transverse tectum covering posterior mentum. Circumpedal carina and enantiophyses E4 present; with or without perigenital carinae. Six pairs of genital setae aligned longitudinally, three pairs of adanal setae. Anal plates lozenge-shaped. Pre-anal organ T-shaped. Nymphs with well-developed free lamellar cusps and lateral notogastral setae emerging from long, fine apophyses fused with gastronotum; lateral setae flanked by elongated, flat scales with strongly serrated margins.
Remarks. Porrhotegaeidae is established for Porrhotegaeus because the genus shares few character states with Dudichella and Pterozetes which Luxton (1988a) placed with Porrhotegaeus in the Pterozetidae. The genus clearly does not fit within Eutegaeidae, where it was placed by J. and P. Balogh (1992) and Subías (2004) (Table 1) although it shares with Eutegaeidae the prodorsum markedly waisted posterior of the bothridia. The establishment of a separate family for Porrhotegaeus is justified based on a series of autapomorphies including the broad, ovoid lamellae with pointed, free cusps; the flat or concave surface of the notogaster with a raised margin; the reflexed humeral processes and the long notogastral setae positioned marginally that are curved at their bases and pointed dorsally. Furthermore, the immatures are unique among those known in the Eutegaeoidea in having strongly-developed lamellar cusps projecting beyond the rostrum, and the notogastral setae c 3 and those of the l, h and p series in the nymphs emerge from extremely long, fine apophyses that are part of the gastronotum and which are flanked by elongated, flat scales with strongly serrated margins.
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 71, DOI: 10.11646/zootaxa.5365.1.1, http://zenodo.org/record/10146969
Tunable vertical ferroelectricity and domain walls by interlayer sliding in $β$-ZrI$_{2}$
Creators: name: Ma, Xiaonan
name: Liu, Chang
name: Ren, Wei
name: Nikolaev, Sergey A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Vertical ferroelectricity where a net dipole moment appears as a result of in-plane ionic displacements has gained enormous attention following its discovery in transition metal dichalcogenides. Based on first-principles calculations, we report on the evidence of robust vertical ferroelectricity upon interlayer sliding in layered semiconducting $β$-ZrI$_{2}$, a sister material of polar semimetals MoTe$_{2}$ and WTe$_{2}$. The microscopic origin of ferroelectricity in ZrI$_{2}$ is attributed to asymmetric shifts of electronic charges within a trilayer, revealing a subtle interplay of rigid sliding displacements and charge redistribution down to ultrathin thicknesses. We further investigate the variety of ferroelectric domain boundaries and predict a stable charged domain wall with a quasi-two-dimensional electron gas and a high built-in electric field that can increase electron mobility and electromechanical response in multifunctional devices. Semiconducting behaviour and a small switching barrier of ZrI$_{2}$ hold promise for novel ferroelectric applications, and our results provide important insights for further development of slidetronics ferroelectricity.
Hierarchical Aggregations for High-Dimensional Multiplex Graph Embedding
Creators: name: Abdous, Kamel
name: Mrabah, Nairouz
name: Bouguessa, Mohamed
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: We investigate the problem of multiplex graph embedding, that is, graphs in which nodes interact through multiple types of relations (dimensions). In recent years, several methods have been developed to address this problem. However, the need for more effective and specialized approaches grows with the production of graph data with diverse characteristics. In particular, real-world multiplex graphs may exhibit a high number of dimensions, making it difficult to construct a single consensus representation. Furthermore, important information can be hidden in complex latent structures scattered in multiple dimensions. To address these issues, we propose HMGE, a novel embedding method based on hierarchical aggregation for high-dimensional multiplex graphs. Hierarchical aggregation consists of learning a hierarchical combination of the graph dimensions and refining the embeddings at each hierarchy level. Non-linear combinations are computed from previous ones, thus uncovering complex information and latent structures hidden in the multiplex graph dimensions. Moreover, we leverage mutual information maximization between local patches and global summaries to train the model without supervision. This allows to capture of globally relevant information present in diverse locations of the graph. Detailed experiments on synthetic and real-world data illustrate the suitability of our approach to downstream supervised tasks, including link prediction and node classification.
Non-equilibrium dynamics of spin facilitated glass models
Creators: name: Leonard, Sebastien
name: Mayer, Peter
name: Sollich, Peter
name: Berthier, Ludovic
name: Garrahan, Juan P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider the dynamics of spin facilitated models of glasses in the non-equilibrium aging regime following a sudden quench from high to low temperatures. We briefly review known results obtained for the broad class of kinetically constrained models, and then present new results for the behaviour of the one-spin facilitated Fredrickson-Andersen and East models in various spatial dimensions. The time evolution of one-time quantities, such as the energy density, and the detailed properties of two-time correlation and response functions are studied using a combination of theoretical approaches, including exact mappings of master operators and reductions to integrable quantum spin chains, field theory and renormalization group, and independent interval and timescale separation methods. The resulting analytical predictions are confirmed by means of detailed numerical simulations. The models we consider are characterized by trivial static properties, with no finite temperature singularities, but they nevertheless display a surprising variety of dynamic behaviour during aging, which can be directly related to the existence and growth in time of dynamic lengthscales. Well-behaved fluctuation-dissipation ratios can be defined for these models, and we study their properties in detail. We confirm in particular the existence of negative fluctuation-dissipation ratios for a large number of observables. Our results suggest that well-defined violations of fluctuation-dissipation relations, of a purely dynamic origin and unrelated to the thermodynamic concept of effective temperatures, could in general be present in non-equilibrium glassy materials.
description: 72 pages, invited contribution to special issue of JSTAT on "Principles of Dynamics of Nonequilibrium Systems" (Programme at Newton Institute Cambridge). v2: New data added to Figs. 11, 23, 24, new Fig. 26 on East model in d=3, minor improvements to text
Editorial - (De)colonizing Academe: Knowing Our Relations
Creators: name: Fitznor, Laara
name: Haig-Brown, Celia
name: Moses, Lori
Publisher: name: Canadian Journal of Native Education
Year: 2021

description: Collaborating on this guest-edited issue of the Canadian Journal of Native Education (CJNE) provided an opportunity for three people with vastly different histories and relations to the traditional territory of the Mississauga Anishinaabe where we now live and work to come together in good relation to one another. It has not all been easy: tight schedules, a seemingly inescapable part of dwelling in the world of academe whether as graduate student or faculty member, are only one of the limitations we faced. But the time we stole from other commitments yielded a warmth as we came to see our shared goals for the endeavor...
description: Canadian Journal of Native Education, Vol. 24 No. 2 (2000)
Deep Dense Multi-scale Network for Snow Removal Using Semantic and Geometric Priors
Creators: name: Zhang, Kaihao
name: Li, Rongqing
name: Yu, Yanjiang
name: Luo, Wenhan
name: Li, Changsheng
name: Li, Hongdong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Images captured in snowy days suffer from noticeable degradation of scene visibility, which degenerates the performance of current vision-based intelligent systems. Removing snow from images thus is an important topic in computer vision. In this paper, we propose a Deep Dense Multi-Scale Network (\textbf{DDMSNet}) for snow removal by exploiting semantic and geometric priors. As images captured in outdoor often share similar scenes and their visibility varies with depth from camera, such semantic and geometric information provides a strong prior for snowy image restoration. We incorporate the semantic and geometric maps as input and learn the semantic-aware and geometry-aware representation to remove snow. In particular, we first create a coarse network to remove snow from the input images. Then, the coarsely desnowed images are fed into another network to obtain the semantic and geometric labels. Finally, we design a DDMSNet to learn semantic-aware and geometry-aware representation via a self-attention mechanism to produce the final clean images. Experiments evaluated on public synthetic and real-world snowy images verify the superiority of the proposed method, offering better results both quantitatively and qualitatively.
Nonequilibrium Quantum Breakdown in a Strongly Correlated Electron System
Creators: name: Oka, Takashi
name: Aoki, Hideo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The nonlinear transport properties of the Mott insulator are discussed with focus on the many-body Landau-Zener mechanism. After reviewing basic concepts such as the non-adiabatic geometric phase and the Schwinger mechanism, we study the decay of the insulating groundstate in strong electric fields using the time-dependent density matrix renormalization group. A short comment on the proposed mapping to the quantum walk model is added before discussing the relevance of the theory to experimental results. This article is a draft of a book chapter of the book entitled "Quantum and Semi-classical Percolation & Breakdown" (Lecture Note in Physics, Springer-Verlag), to appear 2008.
Interroger un corpus par le sens
Creators: name: Jacquemin, Bernard
Publisher: name: arXiv
Year: 2007
Subjects: subject: Computation and Language (cs.CL)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: In textual knowledge management, statistical methods prevail. Nonetheless, some difficulties cannot be overcome by these methodologies. I propose a symbolic approach using a complete textual analysis to identify which analysis level can improve the the answers provided by a system. The approach identifies word senses and relation between words and generates as many rephrasings as possible. Using synonyms and derivative, the system provides new utterances without changing the original meaning of the sentences. Such a way, an information can be retrieved whatever the question or answer's wording may be.
description: 13 pp
Plasmon dispersion in metal nanoparticle chains from angle-resolved scattering
Creators: name: Koenderink, A. F.
name: de Waele, R.
name: Prangsma, J. C.
name: Polman, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present angle and frequency resolved optical extinction measurements to determine the dispersion relation of plasmon modes on Ag and Au nanoparticle chains with pitches down to 75 nm. The large splitting between transverse and longitudinal modes and the band curvature are inconsistent with reported electrostatic near-field models, and confirm that far-field retarded interactions are important, even for $λ/5$-sized structures. The data imply that lower propagation losses, larger signal bandwidth and larger maximum group velocity then expected can be achieved for wave vectors below the light line. We conclude that for the design of optical nanocircuits coherent far-field couplings across the entire circuit need to be considered, even at subwavelength feature sizes.
description: 4 pages, 4 figures, color
Simulating MADMAX in 3D: Requirements for Dielectric Axion Haloscopes
Creators: name: Knirck, S.
name: Schütte-Engel, J.
name: Beurthey, S.
name: Breitmoser, D.
name: Caldwell, A.
name: Diaconu, C.
name: Diehl, J.
name: Egge, J.
name: Esposito, M.
name: Gardikiotis, A.
name: Garutti, E.
name: Heyminck, S.
name: Hubaut, F.
name: Jochum, J.
name: Karst, P.
name: Kramer, M.
name: Krieger, C.
name: Labat, D.
name: Lee, C.
name: Li, X.
name: Lindner, A.
name: Majorovits, B.
name: Martens, S.
name: Matysek, M.
name: Öz, E.
name: Planat, L.
name: Pralavorio, P.
name: Raffelt, G.
name: Ranadive, A.
name: Redondo, J.
name: Reimann, O.
name: Ringwald, A.
name: Roch, N.
name: Schaffran, J.
name: Schmidt, A.
name: Shtembari, L.
name: Steffen, F.
name: Strandhagen, C.
name: Strom, D.
name: Usherov, I.
name: Wieching, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present 3D calculations for dielectric haloscopes such as the currently envisioned MADMAX experiment. For ideal systems with perfectly flat, parallel and isotropic dielectric disks of finite diameter, we find that a geometrical form factor reduces the emitted power by up to $30\,\%$ compared to earlier 1D calculations. We derive the emitted beam shape, which is important for antenna design. We show that realistic dark matter axion velocities of $10^{-3} c$ and inhomogeneities of the external magnetic field at the scale of $10\,\%$ have negligible impact on the sensitivity of MADMAX. We investigate design requirements for which the emitted power changes by less than $20\,\%$ for a benchmark boost factor with a bandwidth of $50\,{\rm MHz}$ at $22\,{\rm GHz}$, corresponding to an axion mass of $90\,μ{\rm eV}$. We find that the maximum allowed disk tilt is $100\,μ{\rm m}$ divided by the disk diameter, the required disk planarity is $20\,μ{\rm m}$ (min-to-max) or better, and the maximum allowed surface roughness is $100\,μ{\rm m}$ (min-to-max). We show how using tiled dielectric disks glued together from multiple smaller patches can affect the beam shape and antenna coupling.
description: 25 pages, 12 figures; added detail, updated references, matches published version
Elastic Scattering and Total Reaction Cross Section for the 6He + 27Al System
Creators: name: Benjamim, E. A.
name: Lepine-Szily, A.
name: Junior, D. R. Mendes
name: Lichtenthaler, R.
name: Guimaraes, V.
name: Gomes, P. R. S.
name: Chamon, L. C.
name: Hussein, M. S.
name: Moro, A. M.
name: Arazi, A.
name: Padron, I.
name: Nunez, J. Alcantara
name: Assuncao, M.
name: Camargo, A. Barioni O.
name: Denke, R. Z.
name: de Faria, P. N.
name: Pires, K. C. C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The elastic scattering of the radioactive halo nucleus 6He on 27Al target was measured at four energies close to the Coulomb barrier using the RIBRAS (Radioactive Ion Beams in Brazil) facility. The Sao Paulo Potential(SPP) was used and its diffuseness and imaginary strength were adjusted to fit the elastic scattering angular distributions. Reaction cross-sections were extracted from the optical model fits. The reduced reaction cross-sections of 6He on 27Al are similar to those for stable, weakly bound projectiles as {6,7}Li, 9Be and larger than stable, tightly bound projectile as 16O on 27Al.
description: 7 pages, 1 table, 3 figures
Search for the 6$α$ condensed state in $^{24}$Mg using the $^{12}\rm{C}+{}^{12}\rm{C}$ scattering
Creators: name: Fujikawa, Y.
name: Kawabata, T.
name: Adachi, S.
name: Enyo, S.
name: Furuno, T.
name: Hijikata, Y.
name: Himi, K.
name: Hirose, K.
name: Honda, Y.
name: Inaba, K.
name: Makii, H.
name: Miyamoto, K.
name: Murata, M.
name: Nishio, K.
name: Okamoto, S.
name: Orlandi, R.
name: Sakanashi, K.
name: Suzaki, F.
name: Tsuji, S.
name: Yahiro, K.
name: Zenihiro, J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We searched for the 6$α$-condensed state in $^{24}$Mg by measuring the $^{12}\rm{C}+{}^{12}\rm{C}$ scattering with the SAKRA Si detector array at $E_\rm{cm}$ = 17.5-25.0 MeV. By using the invariant-mass method for the detected 3$α$ particles, the inclusive cross sections for the $^{12}\rm{C}+{}^{12}\rm{C}\to{}^{12}\rm{C}(0^+_2)+X$ and $^{12}\rm{C}(3^-_1)+X$ reactions were determined. In addition, the missing-mass spectroscopy was successfully utilized to determine the excitation energy of the residual $^{12}\rm{C}$ nucleus and the exclusive cross sections for the $^{12}\rm{C}+{}^{12}\rm{C}\to{}^{12}\rm{C}(0^+_2)+{}^{12}\rm{C}(0^+_1)$, $^{12}\rm{C}(0^+_2)+{}^{12}\rm{C}(2^+_1)$, and $^{12}\rm{C}(0^+_2)+{}^{12}\rm{C}(0^+_2)$ reactions. In both the inclusive $^{12}\rm{C}(0^+_2)+X$ channel and the exclusive $^{12}\rm{C}(0^+_2)+{}^{12}\rm{C}(0^+_1)$ channel, the cross section peaked at $E_rm{cm}$ = 19.4 MeV, which correspond to the excitation energy of $E_x$ = 33.3 MeV in $^{24}\rm{Mg}$. This 19.4-MeV state is a candidate for the 6$α$-condensed state because of the agreement of the excitation energy with the theoretical value and its decay property. In the exclusive $^{12}\rm{C}(0^+_2)+{}^{12}\rm{C}(0^+_2)$ channel, a broad state was observed at $E_\rm{cm}$ = 22.5 MeV, which correspond to the excitation energy of $E_x$ = 36.4 MeV in $^{24}\rm{Mg}$. From the angular distribution of the differential cross section, the spin and parity of this 22.5-MeV state was assigned to be $4^+$. In addition, a $2^+$ state was suggested at the low-energy side of the 22.5-MeV state. Because their excitation energies are higher than the theoretical value of the 6$α$-condensed state, these states might be excited states of the 6$α$-condensed state such as the $2^+_2$ and $4^+_1$ states in $^{12}\rm{C}$.
description: 8 pages, 6 figures
Transverse flow in relativistic viscous hydrodynamics
Creators: name: Baier, Rudolf
name: Romatschke, Paul
name: Wiedemann, Urs Achim
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Hydrodynamic model simulations of Au-Au collisions at RHIC have indicated recently, that with improved simulations in the coming years, it may be feasible to quantify the viscosity of the matter produced in heavy ion collisions. To this end, a consistent fluid dynamic description of viscous effects is clearly needed. In this note, we observe that a recently used, approximate form of the 2nd order Israel-Stewart viscous hydrodynamic equations of motion cannot account consistently for the transverse flow fields, which are expected to develop in heavy ion collisions. We identify the appropriate equations of motion.
description: 5 pages, uses REVTEX4
On Probing theta_{23} in Neutrino Telescopes
Creators: name: Choubey, Sandhya
name: Niro, Viviana
name: Rodejohann, Werner
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Among all neutrino mixing parameters, the atmospheric neutrino mixing angle theta_{23} introduces the strongest variation on the flux ratios of ultra high energy neutrinos. We investigate the potential of these flux ratio measurements at neutrino telescopes to constrain theta_{23}. We consider astrophysical neutrinos originating from pion, muon-damped and neutron sources and make a comparative study of their sensitivity reach to theta_{23}. It is found that neutron sources are most favorable for testing deviations from maximal theta_{23}. Using a chi^2 analysis, we show in particular the power of combining (i) different flux ratios from the same type of source, and also (ii) combining flux ratios from different astrophysical sources. We include in our analysis ``impure'' sources, i.e., deviations from the usually assumed initial (1 : 2 : 0), (0 : 1 : 0) or (1 : 0 : 0) flux compositions.
description: 17 pages, 5 figures. Added discussion on experimental errors. To appear in PRD
Implications of the Muon g-2 result on the flavour structure of the lepton mass matrix
Creators: name: Calibbi, Lorenzo
name: López-Ibáñez, M. L.
name: Melis, Aurora
name: Vives, Oscar
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The confirmation of the discrepancy with the Standard Model predictions in the anomalous magnetic moment by the Muon g-2 experiment at Fermilab points to a low scale of new physics. Flavour symmetries broken at low energies can account for this discrepancy but these models are much more restricted, as they would also generate off-diagonal entries in the dipole moment matrix. Therefore, if we assume that the observed discrepancy in the muon $g-2$ is explained by the contributions of a low-energy flavor symmetry, lepton flavour violating processes can constrain the structure of the lepton mass matrices and therefore the flavour symmetries themselves predicting these structures. We apply these ideas to several discrete flavour symmetries popular in the leptonic sector, such as $Δ(27)$, $A_4$, and $A_5 \ltimes {\rm CP}$.
description: 21 pages; v3: comments added, typos corrected, version accepted for publication in EPJC
title: Σύγχρονες τάσεις στο πρόβλημα δρομολόγησης και αποθεματοποίησης
title: Recent advances in the inventory routing problem
Creators: name: Γκινης Γεωργιος
Publisher: name: Technical University of Crete
Year: 2024

description: Η παρούσα διπλωματική εργασία αποτελεί μία βιβλιογραφική επισκόπηση στις σύγχρονες τάσεις του Προβλήματος Δρομολόγησης και Αποθεματοποίησης. Στόχος της εργασίας αυτής είναι η συζήτηση και η κριτική ζητημάτων που αφορούν στις πρόσφατες μεταβολές κατά την προσέγγιση του προβλήματος εξετάζοντας τόσο κλασικές όσο και σύγχρονες έρευνες. Η συμβολή αυτής είναι καίρια και εστιάζει στην ανάδειξη των σύγχρονων τάσεων στο πεδίο με στόχο την περαιτέρω βελτιστοποίηση των νέων τεχνολογιών στην αποθεματοποίηση και δρομολόγηση. Το πρόβλημα δρομολόγησης και αποθεματοποίησης βασίζεται στον τομέα της βελτιστοποίησης αποθεμάτων και σε αυτόν της δρομολόγησης αποθεμάτων, απαιτώντας ταυτόχρονη πολυτομική προσέγγιση με στόχο τη δημιουργία ενός ενιαίου προβλήματος. Παρ’όλαυτά ο τομέας της Εφοδιαστικής Αλυσίδας έχει εξελιχθεί αρκετά τα τελευταία χρόνια ώστε να είναι σε θέση να βελτιστοποιήσει τα πλέον μεγάλα και πολύπλοκα προβλήματα της σύγχρονης πραγματικότητας. Στο βασικό μέρος της παρούσας εργασίας θα γίνει εκτενής αναφορά σε ένα μέρος του συνόλου των δημοσιεύσεων που αφορούν σε σύγχρονες προσεγγίσεις προβλημάτων δρομολόγησης και αποθεματοποίησης. Ταυτόχρονα, κρίνεται σκόπιμη η ομαδοποίηση των εφαρμογών τόσο ως προς τον αλγόριθμο βελτιστοποίησης που χρησιμοποιούν όσο και την κατηγορία που ανήκει το εκάστοτε πρόβλημα καθώς παρουσιάζει ιδιαίτερο ενδιαφέρον ο τρόπος με τον οποίο προσεγγίζονται τα προβλήματα αυτά στις μέρες μας. Τα αποτελέσματα της μελέτης παρουσιάζονται αναλυτικά προσφέροντας μια ολοκληρωμένη επισκόπηση των τρεχουσών τάσεων και προοπτικών στον τομέα της δρομολόγησης και αποθεματοποίησης. Ολοκληρώνοντας, η παρούσα διπλωματική εργασία παρέχει χρήσιμες γνώσεις για τους ερευνητές στον τομέα αυτό και δημιουργεί νέες προτάσεις για μελλοντική έρευνα.
Additional file 1 of Prevalence of mental health problems in frontline healthcare workers after the first outbreak of COVID-19 in China: a cross-sectional study
Creators: name: Guo, Wen-Ping
name: Min, Qing
name: Gu, Wei-Wei
name: Yu, Liang
name: Xiao, Xiao
name: Yi, Wei-Bing
name: Li, Hong-Liang
name: Huang, Bei
name: Li, Jun-Li
name: Dai, Ya-Jun
name: Xia, Jian
name: Liu, Jie
name: Li, Bei
name: Zhou, Ben-Hong
name: Li, Minglun
name: Xu, Hong-Xi
name: Wang, Xuan-Bin
name: Shi, Wen-Yuan
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: Mental Health

description: Additional file 1: Table S1. Sex, occupation and geographic data of nonrespondents.
The Citational Practice of Philagathos of Cerami: Apologetic and Rhetorical Appropriations from Makarios Magnes’ Monogenes
Creators: name: Duluș, Mircea
Publisher: name: Parekbolai. An Electronic Journal for Byzantine Literature
Year: 2024
Subjects: Philagathos of Cerami; Makarios Magnes’ Monogenes; citational practice; Norman Italy; pagan critique of Christianity;

description: Philagathos of Cerami’s Homilies transmit numerous genuine pagan arguments with unassigned authorship. A prominent source of these citations is the Monogenes of Makarios Magnes, a treatise presumably composed in the final quarter of the 4th century. A recent contribution has documented the existence of several Makarian appropriations in Philagathos’ sermons, “For the Feast of the Holy Apostles, Peter, and Paul” and “On the Man Possessed by a Legion of Demons.” Introducing new evidence, this article unveils a more extensive reliance on Makarios’ Monogenes. It reveals that Philagathos exploited the treatise for scientific explanations, allegorical interpretations, rhetorical brilliance, and the citation of various scriptural difficulties. The article uncovers a citational practice based on associative technique. Inherited from patristic exegesis, this technique hinges on the identification of verbal similarities and allusions within an impressive array of sources in relation to the examined scriptural passages. The analysis indicates that Philagathos cited several pagan arguments transmitted by Makarios’ Monogenes that were used to introduce and expand upon Makarios’ refutation. Overall, the analysis demonstrates that Philagathos invested the Monogenes with sweeping theological and rhetorical authority all but regarding the treatise as a sui generis exegetic ‘manual.’
description: Parekbolai. An Electronic Journal for Byzantine Literature, Vol 14 (2024)
Integrable Systems and Spacetime Dynamics
Creators: name: Cárdenas, Marcela
name: Correa, Francisco
name: Lara, Kristiansen
name: Pino, Miguel
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: It is shown that the Ablowitz-Kaup-Newell-Segur (AKNS) integrable hierarchy can be obtained as the dynamical equations of three-dimensional General Relativity with a negative cosmological constant. This geometrization of the AKNS system is possible through the construction of novel boundary conditions for the gravitational field. These are invariant under an asymptotic symmetry group characterized by an infinite set of AKNS commuting conserved charges. Gravitational configurations are studied by means of $SL(2,\mathbb{R})$ conjugacy classes. Conical singularities and black hole solutions are included in the boundary conditions.
description: 5 pages. Replacement matches with published version
Análise do NDVI nos municípios de Canudos, Jeremoabo e Uauá (Setor Sul Do Polo Jeremoabo – Bahia) como subsídio à caracterização do uso do solo e cobertura vegetal
Creators: name: Maiara Cruz Menezes
name: and others
Publisher: name: Zenodo
Year: 2023

description: R E S U M OA caracterização do uso do solo e da cobertura vegetal do Polo Jeremoabo é fundamental para identificar áreas marcadas pela intensa ação agropecuária que tem causado pressão sobre o bioma local, que no caso é a Caatinga. Portanto, o objetivo deste trabalho é calcular o NDVI para caracterizar o uso do solo e a cobertura vegetal dos municípios de Canudos, Jeremoabo e Uauá, pertencentes ao setor sul do Polo Jeremoabo, localizado em uma Área Suscetível à Desertificação (ASD), uma região fragilizada pela ocupação e uso acelerado e predatório do solo. Para isso, foram utilizadas ferramentas fundamentais de sensoriamento remoto e geotecnologias, que permitiram a aquisição de dados de forma relativamente simples e econômica, coletados e processados gratuitamente, tornando-os mais acessíveis. As imagens de satélite utilizadas foram do CBERS 4, câmera PAN 10 metros, com o objetivo de avaliar o vigor vegetativo a partir das variações dos valores de NDVI dos municípios em uma série temporal de três anos: 2019, 2020 e 2021. Grande parte da área apresentou valores relativamente baixos, denotando uma fragilidade na recuperação da atividade fotossintética da vegetação. Dessa forma, os resultados obtidos podem contribuir para o desenvolvimento de ações mais efetivas de gestão e conservação do solo e da vegetação, além de fornecer informações importantes para a conscientização da sociedade e do poder público sobre a importância da preservação da Caatinga e da prevenção da desertificação nessa região.Palavras-Chaves: Desertificação, NDVI, Caatinga.