cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nonreciprocal superconducting transport and the spin Hall effect in gyrotropic structures
Creators: name: Kokkeler, Tim
name: Tokatly, Ilya
name: Bergeret, Sebastian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The search for superconducting systems exhibiting nonreciprocal transport and, specifically, the diode effect, has proliferated in recent years. This trend encompasses a wide variety of systems, including planar hybrid structures, asymmetric SQUIDs, and certain noncentrosymmetric superconductors. A common feature of such systems is a gyrotropic symmetry, realized on different scales and characterized by a polar vector. Alongside time-reversal symmetry breaking, the presence of a polar axis allows for magnetoelectric effects, which, when combined with proximity-induced superconductivity, results in spontaneous non-dissipative currents that underpin the superconducting diode effect. This symmetry established, we present a comprehensive theoretical study of transport in a lateral Josephson junctions composed of a normal metal supporting the spin Hall effect, and attached to a ferromagnetic insulator. Due to the presence of the latter, magnetoelectric effects arise without requiring external magnetic fields. We determine the dependence of the anomalous current on the spin relaxation length and the transport parameters commonly used in spintronics to characterize the interface between the metal and the ferromagnetic insulator. Therefore, our theory naturally unifies nonreciprocal transport in superconducting systems with classical spintronic effects, such as the spin Hall effect, spin galvanic effect, and spin Hall magnetoresistance. We propose an experiment involving measurements of magnetoresistance in the normal state and nonreciprocal transport in the superconducting state. Such experiment, on the one hand, allows for determining the parameters of the model and thus verifying with a greater precision the theories of magnetoelectric effects in normal systems. On the other hand, it contributes to a deeper understanding of the underlying microscopic origins that determine these parameters.
description: 14 pages, 9 figures
LCP MEMS sensor and package design for CPAP devices
Creators: name: Thorby, William
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: The ability to accurately measure fluid flow velocity and direction are important measures for data collection in a variety of industries including environmental science, biotechnology, aerospace and emergency response organisations. As a result of extensive research and development into micro-electromechanical systems (MEMS), a low-cost, miniaturised, biomimetic piezoresistive sensor inspired by the lateral line sensory system has been developed to be more durable, flexible, robust to harsh environments, more cost effective to manufacture and more sensitive than traditional MEMS flow sensors on the market today. This thesis aims to design, simulate, assemble and test different packaging designs and configurations for the LCP sensor in order to determine its usability and performance in air flow monitoring within the medical industry, by comparing the air flow velocity detection capabilities of the system with a commercially available sensor inside a Continuous Positive Airway Pressure (CPAP) device, used to treat patients with sleep apnea. It is demonstrated in this thesis that the pressure sensor configuration and flow sensor configuration outperform the commercial sensor in low flow velocity detection, reduced signal noise and the ability to show a measurable voltage change per ILPM change in flow rate, but there is a lack of response time due to the mechanical nature of the sensor. Various future work suggestions are recommended, with preliminary testing of the flow sensor in a nasal mask completed.
Is Your Learned Query Optimizer Behaving As You Expect? A Machine Learning Perspective
Creators: name: Lehmann, Claude
name: Sulimov, Pavel
name: Stockinger, Kurt
Publisher: name: arXiv
Year: 2023
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: The current boom of learned query optimizers (LQO) can be explained not only by the general continuous improvement of deep learning (DL) methods but also by the straightforward formulation of a query optimization problem (QOP) as a machine learning (ML) one. The idea is often to replace dynamic programming approaches, widespread for solving QOP, with more powerful methods such as reinforcement learning. However, such a rapid "game change" in the field of QOP could not pass without consequences - other parts of the ML pipeline, except for predictive model development, have large improvement potential. For instance, different LQOs introduce their own restrictions on training data generation from queries, use an arbitrary train/validation approach, and evaluate on a voluntary split of benchmark queries.
 In this paper, we attempt to standardize the ML pipeline for evaluating LQOs by introducing a new end-to-end benchmarking framework. Additionally, we guide the reader through each data science stage in the ML pipeline and provide novel insights from the machine learning perspective, considering the specifics of QOP. Finally, we perform a rigorous evaluation of existing LQOs, showing that PostgreSQL outperforms these LQOs in almost all experiments depending on the train/test splits.
Demushkin groups of uncountable rank
Creators: name: Bar-On, Tamar
name: Nikolov, Nikolay
Publisher: name: arXiv
Year: 2023
Subjects: subject: Number Theory (math.NT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We extend the theory of countably generated Demushkin groups to Demushkin groups of arbitrary rank. We investigate their algebraic properties and invariants, count their isomorphism classes and study their realization as absolute Galois group. At the end, we compute their profinite completion and conclude with some results on profinite completion of absolute Galois groups.
Gravitational imaging through a triple source plane lens: revisiting the $Λ$CDM-defying dark subhalo in SDSSJ0946+1006
Creators: name: Ballard, Daniel J.
name: Enzi, Wolfgang J. R.
name: Collett, Thomas E.
name: Turner, Hannah C.
name: Smith, Russell J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The $Λ$CDM paradigm successfully explains the large-scale structure of the Universe, but is less well constrained on sub-galactic scales. Gravitational lens modelling has been used to measure the imprints of dark substructures on lensed arcs, testing the small-scale predictions of $Λ$CDM. However, the methods required for these tests are subject to degeneracies among the lens mass model and the source light profile. We present a case study of the unique compound gravitational lens SDSSJ0946+1006, wherein a dark, massive substructure has been detected, whose reported high concentration would be unlikely in a $Λ$CDM universe. For the first time, we model the first two background sources in both I- and U-band HST imaging, as well as VLT-MUSE emission line data for the most distant source. We recover a lensing perturber at a $5.9σ$ confidence level with mass $\log_{10}(M_\mathrm{sub}/M_{\odot})=9.2^{+0.4}_{-0.1}$ and concentration $\log_{10}c=2.4^{+0.5}_{-0.3}$. The concentration is more consistent with CDM subhalos than previously reported, and the mass is compatible with that of a dwarf satellite galaxy whose flux is undetectable in the data at the location of the perturber. A wandering black hole with mass $\log_{10}(M_\mathrm{BH}/M_{\odot})=8.9^{+0.2}_{-0.1}$ is a viable alternative model. We systematically investigate alternative assumptions about the complexity of the mass distribution and source reconstruction; in all cases the subhalo is detected at around the $\geq5σ$ level. However, the detection significance can be altered substantially (up to $11.3σ$) by alternative choices for the source regularisation scheme.
description: 24 pages, 16 figures, 5 appendices
CRIMINAL LEGAL CHARACTERISTICS OF DRUG DISTRIBUTION THROUGH THE INTERNET
Creators: name: Ibragimov, Abror
Publisher: name: Zenodo
Year: 2025

description: This article analyzes the current state of drug distribution via the Internet. Based on an analysis of theoretical and legal foundations and law enforcement practices, the author emphasizes the prospects for improving information legislation in various countries to restrict the dissemination of certain types of information through social networks and messaging apps.
The Two Rigid Body Interaction using Angular Momentum Theory Formulae
Creators: name: Boué, Gwenaël
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: This work presents an elegant formalism to model the evolution of the full two rigid body problem. The equations of motion, given in a Cartesian coordinate system, are expressed in terms of spherical harmonics and Wigner D-matrices. The algorithm benefits from the numerous recurrence relations satisfied by these functions allowing a fast evaluation of the mutual potential. Moreover, forces and torques are straightforwardly obtained by application of ladder operators taken from the angular momentum theory and commonly used in quantum mechanics. A numerical implementation of this algorithm is made. Tests show that the present code is significantly faster than those currently available in literature.
description: 13 pages, 1 figure, submitted to CeMDA on September 28, 2016
pNRQCD determination of E1 radiative transitions
Creators: name: Steinbeißer, Sebastian
name: Segovia, Jorge
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: This contribution contains the first numerical computation of the complete set of relativistic corrections of relative order $v^{2}$ for electric dipole (E1) transitions in heavy quarkonium; in particular, for the processes $χ_{bJ}(1P) \to Υ(1S) + γ$ with $J=0,\,1,\,2$. We assume that the momentum transfer of the heavy mesons involved in the reactions lies in the weak-coupling regime of the low-energy effective field theory potential non-relativistic QCD (pNRQCD) and thus a full perturbative calculation can be performed.
description: Contribution to the proceedings of the 12th Quark Confinement and the Hadron Spectrum (CONF12). Aug. 28 - Sep. 4, 2016. Thessaloniki, Greece
New directions for analysis of process data from the Rey -Osterrieth Complex Figure Test
Creators: name: Kerr, Tanya
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: Process variables underlying copy strategy for the Rey-Osterrieth Complex Figure Test (ROCF) were examined in the context of assessing the cognitive construct of planning. While a number of tests of planning have been developed such as the Tower tests, the ROCF potentially facilitates a more detailed understanding of compromised planning performance.In the current study, quantified process measures were derived to evaluate individual copy approaches to the ROCF and were investigated relative to eight existing qualitative scoring systems. The performances of forty-nine healthy subjects were compared with the performances of fifty-two subjects in a mixed neurological sample. Quantified process measures and scores derived from existing qualitative scoring approaches were examined in relation to a range of psychometric properties including their capacity to produce scores which are normally distributed and to demonstrate variability between subjects. Discriminant validity was also examined, specifically whether process measures thus derived exhibit the ability to discriminate between normal and clinical subjects. Results demonstrated that novel quantified process measures can meaningfully contribute to analysis of performance parameters underlying copy of the ROCF. The relationship between copy approach and recall performance on the ROCF was also examined. Quantified process measures and scores from the existing qualitative scoring systems under study were found to be moderately correlated with recall across both normal and clinical subjects. Study findings were examined in the context of suggested future research and the importance of promoting the use of qualitative scoring systems in the analysis of suboptimal performance on the ROCF.
Polaron spectroscopy of interacting Fermi systems: insights from exact diagonalization
Creators: name: Amelio, Ivan
name: Goldman, Nathan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Immersing a mobile impurity into a many-body quantum system represents a theoretically intriguing and experimentally effective way of probing its properties.In this work, we study the polaron spectral function in various environments, within the framework of Fermi-Hubbard models. Inspired by possible realizations in cold atoms and semiconductor heterostructures, we consider different configurations for the background Fermi gas, including charge density waves, multiple Fermi seas and pair superfluids. While our calculations are performed using an exact-diagonalization approach, hence limiting our analysis to systems of few interacting Fermi particles, we identify robust spectral features supported by theoretical results. Our work provides a benchmark for computations based on mean-field approaches and reveal surprising features of polaron spectra, inspiring new theoretical investigations.
description: Resubmission to SciPost
[Enveloppe d'un courrier adressé à Yolanda Huerga Cedeño-05]
Creators: name: Manuel, Vázquez Portal
name: Vázquez Portal, Manuel
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2023
Subjects: Prison de Aguadores

description: Destinataire : Huerga Cedeño, Yolanda
description: Notes : Absence dans le fonds d'archives de la lettre de Vázquez Portal à son épouse correspondante à cette enveloppe. Courrier expédié depuis la Prison de Aguadores, 'Celda n° 15'. Chiffre 1 encerclé à gauche du timbre au recto. Trois cachets au verso, dont deux comportent les dates 07-10-2003 et 08-10-2003, le troisième est illisible. Adresse figurant sur l'enveloppe : 'Edificio 979 apto 14 – Zona 24. Alamar – Habana del Este – Ciudad de la Habana – Cuba'.
description: Source: Cote : MVP-B-2003-10-07
description: Source: Localisation du document : États-Unis, Miami (Floride)
description: created: 2003-10-07/2003-10-08
D-FaST: Cognitive Signal Decoding with Disentangled Frequency-Spatial-Temporal Attention
Creators: name: Chen, Weiguo
name: Wang, Changjian
name: Xu, Kele
name: Yuan, Yuan
name: Bai, Yanru
name: Zhang, Dongsong
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Cognitive Language Processing (CLP), situated at the intersection of Natural Language Processing (NLP) and cognitive science, plays a progressively pivotal role in the domains of artificial intelligence, cognitive intelligence, and brain science. Among the essential areas of investigation in CLP, Cognitive Signal Decoding (CSD) has made remarkable achievements, yet there still exist challenges related to insufficient global dynamic representation capability and deficiencies in multi-domain feature integration. In this paper, we introduce a novel paradigm for CLP referred to as Disentangled Frequency-Spatial-Temporal Attention(D-FaST). Specifically, we present an novel cognitive signal decoder that operates on disentangled frequency-space-time domain attention. This decoder encompasses three key components: frequency domain feature extraction employing multi-view attention, spatial domain feature extraction utilizing dynamic brain connection graph attention, and temporal feature extraction relying on local time sliding window attention. These components are integrated within a novel disentangled framework. Additionally, to encourage advancements in this field, we have created a new CLP dataset, MNRED. Subsequently, we conducted an extensive series of experiments, evaluating D-FaST's performance on MNRED, as well as on publicly available datasets including ZuCo, BCIC IV-2A, and BCIC IV-2B. Our experimental results demonstrate that D-FaST outperforms existing methods significantly on both our datasets and traditional CSD datasets including establishing a state-of-the-art accuracy score 78.72% on MNRED, pushing the accuracy score on ZuCo to 78.35%, accuracy score on BCIC IV-2A to 74.85% and accuracy score on BCIC IV-2B to 76.81%.
description: 18 pages, 9 figures. Accepted by IEEE Transactions on Cognitive and Developmental Systems
On the different regimes of Stochastic Gradient Descent
Creators: name: Sclocchi, Antonio
name: Wyart, Matthieu
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Modern deep networks are trained with stochastic gradient descent (SGD) whose key hyperparameters are the number of data considered at each step or batch size $B$, and the step size or learning rate $η$. For small $B$ and large $η$, SGD corresponds to a stochastic evolution of the parameters, whose noise amplitude is governed by the ''temperature'' $T\equiv η/B$. Yet this description is observed to break down for sufficiently large batches $B\geq B^*$, or simplifies to gradient descent (GD) when the temperature is sufficiently small. Understanding where these cross-overs take place remains a central challenge. Here, we resolve these questions for a teacher-student perceptron classification model and show empirically that our key predictions still apply to deep networks. Specifically, we obtain a phase diagram in the $B$-$η$ plane that separates three dynamical phases: (i) a noise-dominated SGD governed by temperature, (ii) a large-first-step-dominated SGD and (iii) GD. These different phases also correspond to different regimes of generalization error. Remarkably, our analysis reveals that the batch size $B^*$ separating regimes (i) and (ii) scale with the size $P$ of the training set, with an exponent that characterizes the hardness of the classification problem.
description: Main: 8 pages, 4 figures; Appendix: 15 pages, 11 figures
Additional file 1: of Facility-imposed barriers to early utilization of focused antenatal care services in Mangochi District, Malawi â a mixed methods assessment
Creators: name: Kondwani Mamba
name: Adamson Muula
name: Stones, William
Publisher: name: figshare
Year: 2017
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: CDTFA meeting facilitation guide. (DOCX 16Â kb)
Understanding speech in complex acoustic environments: the role of informational masking and auditory distance perception
Creators: name: Westermann, Adam
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: One of the greatest challenges for the auditory system is communicating in environments where speech is degraded by multiple spatially distributed maskers and room reverberation. This "cocktail-party" situation and the related auditory mechanisms have been a topic for numerous studies. This thesis primarily investigated speech intelligibility in such environments— specifically considering the role of differences in distance between talkers and the contribution of informational masking (IM). The first two studies investigated the role of differences in distance between competing talkers on spatial release from masking (SRM) in normal hearing (NH) and subsequently, hearing impaired (HI) listeners. Intelligibility improved for both NH and HI listeners when moving the masker further away from the target. Contrastingly, when the target was moved further away and the maskers were kept near the listener, the results varied significantly across subjects. While intelligibility improved for some NH listeners, the HI listeners performed substantially worse. It was hypothesized that in this condition IM was caused by masker distraction rather than confusion. In the third study, the role of IM was investigated in a simulated cafeteria environment. Substantial IM effects were only observed when the target and masking talker were colocated and the same person. In conditions that resemble real life, no significant IM effects were found. This suggests that IM is of low relevance in real-life listening and is exaggerated by target-masker similarities and the colocated spatial configuration often used in previous listening tests. The final study investigated the effect of nearby masking talkers in a simulated cafeteria environment with NH and HI listeners. The study demonstrated that for realistic conditions, nearby distracters introduce a significant amount of IM in both NH and HI subjects. However, the observed IM was likely not due to target-masker confusions, but rather caused by the nearby masker distracting the listener. Overall, this work suggests that (i) NH and HI listeners use distance related cues in the cocktail-party environment, (ii) in such environments IM related to target-masker confusions is of little relevance, and (iii) nearby maskers introduce IM - likely due to distraction of attention. These findings contribute to our understanding of auditory processing and could potentially have implications on signal processing methods for hearing devices.
Seeding Change: Transforming Seed Access in Uganda through Social and Behavior Change Interventions
Creators: name: Yila, Jummai O.
name: Nchanji, Eileen
name: Kinyota, Phillip
name: Mikhala, Audrine
name: Bomuhangi, Allan
name: Amuda, Alex
name: Lengewa, Catherine
Publisher: name: Zenodo
Year: 2024

description: Social norms and institutions play a critical role in the production and adoption of improved seeds by shaping the behaviors and expectations of individuals and communities involved in agriculture. Gender inequity, prevailing myths, and misinformation about improved rice seeds dissuade farmers from adopting them and limit women's access to seeds. Ensuring equitable access to quality seeds for all farmers is critical in boosting Uganda's agricultural productivity. This can be addressed by improving farmer knowledge and trust in improved varieties and creating supportive policies and programs that lower smallholder farmers' economic and social barriers. A holistic approach that integrates economic viability and the promotion of gender equity is critical to farming communities' overall economic growth and resilience. By focusing on the economic empowerment of women farmers while simultaneously addressing gender disparities in access to resources and decision-making, interventions can create a more enabling environment for all farmers. The social and behavior change communication intervention highlights women's productive potential, their significant contributions to food output, and the need for equal access to resources and services to maximize agricultural productivity. Challenging gender norms in Uganda's agricultural sector requires a multifaceted approach that addresses women's empowerment and broader socioeconomic challenges and promotes inclusivity.
The Virasoro Minimal String
Creators: name: Collier, Scott
name: Eberhardt, Lorenz
name: Mühlmann, Beatrix
name: Rodriguez, Victor A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We introduce a critical string theory in two dimensions and demonstrate that this theory, viewed as two-dimensional quantum gravity on the worldsheet, is equivalent to a double-scaled matrix integral. The worldsheet theory consists of Liouville CFT with central charge $c\geq 25$ coupled to timelike Liouville CFT with central charge $26-c$. The double-scaled matrix integral has as its leading density of states the universal Cardy density of primaries in a two-dimensional CFT, thus motivating the name Virasoro minimal string. The duality holds for any value of the continuous parameter $c$ and reduces to the JT gravity/matrix integral duality in the large central charge limit. It thus provides a precise stringy realization of JT gravity. The main observables of the Virasoro minimal string are quantum analogues of the Weil-Petersson volumes, which are computed as absolutely convergent integrals of worldsheet CFT correlators over the moduli space of Riemann surfaces.
 By exploiting a relation of the Virasoro minimal string to three-dimensional gravity and intersection theory on the moduli space of Riemann surfaces, we are able to give a direct derivation of the duality. We provide many checks, such as explicit numerical - and in special cases, analytic - integration of string diagrams, the identification of the CFT boundary conditions with asymptotic boundaries of the two-dimensional spacetime, and the matching between the leading non-perturbative corrections of the worldsheet theory and the matrix integral. As a byproduct, we discover natural conformal boundary conditions for timelike Liouville CFT.
description: 14 pages of summary and results, 113 pages in total, ancillary mathematica notebook
Strongly extreme points and approximation properties
Creators: name: Abrahamsen, Trond A.
name: Hájek, Petr
name: Nygaard, Olav
name: Troyanski, Stanimir
Publisher: name: arXiv
Year: 2017
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46B20

description: We show that if $x$ is a strongly extreme point of a bounded closed convex subset of a Banach space and the identity has a geometrically and topologically good enough local approximation at $x$, then $x$ is already a denting point. It turns out that such an approximation of the identity exists at any strongly extreme point of the unit ball of a Banach space with the unconditional compact approximation property. We also prove that every Banach space with a Schauder basis can be equivalently renormed to satisfy the sufficient conditions mentioned. In contrast to the above results we also construct a non-symmetric norm on $c_0$ for which all points on the unit sphere are strongly extreme, but none of these points are denting.
description: 14 pages
Causality and classical dispersion relations
Creators: name: Hoult, Raphael E.
name: Kovtun, Pavel
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We explore the consequences of relativistic causality and covariant stability for short-wavelength dispersion relations in classical systems. For excitations described by a finite number of partial differential equations, as is the case in relativistic hydrodynamics, we give causality and covariant stability constraints on the excitation's frequency at large momenta.
description: 16 pages, 1 figure. v2: reference added, small clarifications. v3: reference added, published version
On Centroidal Dynamics and Integrability of Average Angular Velocity
Creators: name: Saccon, Alessandro
name: Traversaro, Silvio
name: Nori, Francesco
name: Nijmeijer, Henk
Publisher: name: arXiv
Year: 2017
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: In the literature on robotics and multibody dynamics, the concept of average angular velocity has received considerable attention in recent years. We address the question of whether the average angular velocity defines an orientation framethat depends only on the current robot configuration and provide a simple algebraic condition to check whether this holds. In the language of geometric mechanics, this condition corresponds to requiring the flatness of the mechanical connection associated to the robotic system. Here, however, we provide both a reinterpretation and a proof of this result accessible to readers with a background in rigid body kinematics and multibody dynamics but not necessarily acquainted with differential geometry, still providing precise links to the geometric mechanics literature. This should help spreading the algebraic condition beyond the scope of geometric mechanics,contributing to a proper utilization and understanding of the concept of average angular velocity.
description: 8 pages, accepted for IEEE Robotics and Automation Letters (RA-L)
title: Rapport de voyage, Ile de France (1926) : Ligne de New-York, 1958, voyage n°30
Creators: name: Couetoux du Tertre, Fernand
name: De Monicault, Henri
name: Delafon, Michel
name: Derobert, Georges
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: subject: Compagnie Générale Transatlantique
subject: Transports maritimes - Histoire
subject: Marine marchande
subject: Journaux de bord

description: Chapitrage : Rapport général / du capitaine - Rapport du commissaire - Rapport du second - Rapport de l'officier de sécurité - Rapport de l'officier de navigation - Rapport du médecin - Rapport contentieux
description: Source: French Lines & Compagnies, 1997 004 5072-28
description: Coverage: 1958-09-02/1958-09-16
An Elliptic One-Loop Amplitude in Anti-de-Sitter Space
Creators: name: Stawinski, Sven F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present full analytic results for the four-point one-loop amplitude of a conformally coupled scalar in four-dimensional Anti-de-Sitter space dual to a primary operator with scaling dimension 1. The computation is based on an intriguing recent discovery, connecting Witten diagrams and flat-space Feynman integrals, which led to an expression of the amplitude of interest as a pure combination of single-valued multiple polylogarithms and an integral which cannot be reduced to multiple polylogarithms. We explicitly evaluate that integral in terms of elliptic multiple polylogarithms, finding that it is not manifestly single-valued unlike the polylogarithmic contributions to the amplitude. Further we compute the symbol of the integral and observe similar structures as for (elliptic) flat-space amplitudes. The result presented here adds to the relatively short list of explicitly known position space curved-space amplitudes beyond tree level, and constitutes the first curved-space amplitude evaluated in terms of elliptic multiple polylogarithms.
Complete spin and orbital evolution of close-in bodies using a Maxwell viscoelastic rheology
Creators: name: Boué, Gwenaël
name: Correia, Alexandre C. M.
name: Laskar, Jacques
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: In this paper, we present a formalism designed to model tidal interaction with a viscoelastic body made of Maxwell material. Our approach remains regular for any spin rate and orientation, and for any orbital configuration including high eccentricities and close encounters. The method is to integrate simultaneously the rotation and the position of the planet as well as its deformation. We provide the equations of motion both in the body frame and in the inertial frame. With this study, we generalize preexisting models to the spatial case and to arbitrary multipole orders using a formalism taken from quantum theory. We also provide the vectorial expression of the secular tidal torque expanded in Fourier series. Applying this model to close-in exoplanets, we observe that if the relaxation time is longer than the revolution period, the phase space of the system is characterized by the presence of several spin-orbit resonances, even in the circular case. As the system evolves, the planet spin can visit different spin-orbit configurations. The obliquity is decreasing along most of these resonances, but we observe a case where the planet tilt is instead growing. These conclusions derived from the secular torque are successfully tested with numerical integrations of the instantaneous equations of motion on HD 80606b. Our formalism is also well adapted to close-in super-Earths in multiplanet systems which are known to have non-zero mutual inclinations.
description: 31 pages, 5 figures
The relation between corporate social responsibility (CSR) disclosure and market liquidity: Australian evidence
Creators: name: Jang, Sumi
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: Recent increases in corporate social responsibility (CSR) disclosure have raised several questions as to why firms engage in CSR disclosure behaviour. One of many possible benefits might be the increased level of market liquidity. In this context, this study examines the relation between CSR disclosure and market liquidity for 200 listed CSR-sensitive firms on the Australia Stock Exchange (ASX) for the year 2014. In particular, this study uses two CSR disclosure measures and four types of market liquidity measures to investigate the association between the two. Based on legitimacy and signalling theory it is hypothesised that firms with lower market liquidity are likely to engage in CSR disclosure behaviour and that with superior CSR disclosure behaviour will enjoy a subsequent increase in market liquidity in the following year. The relation is examined using multiple regression analysis. The results of the study find that a lower level of market liquidity is significantly associated with firms’ engagement in CSR disclosure. The findings of the study are likely to shed light on the importance of CSR disclosure.
Additional file 1 of PureCLIP: capturing target-specific proteinâ RNA interaction footprints from single-nucleotide CLIP-seq data
Creators: name: Krakau, Sabrina
name: Richard, Hugues
name: Marsico, Annalisa
Publisher: name: figshare
Year: 2017
Subjects: subject: Biochemistry
subject: Space Science
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Computational Biology

description: Additional figures and more detailed information about the computational methods and the results. (PDF 1352 kb)
MindShift: Leveraging Large Language Models for Mental-States-Based Problematic Smartphone Use Intervention
Creators: name: Wu, Ruolan
name: Yu, Chun
name: Pan, Xiaole
name: Liu, Yujia
name: Zhang, Ningning
name: Fu, Yue
name: Wang, Yuhan
name: Zheng, Zhi
name: Chen, Li
name: Jiang, Qiaolei
name: Xu, Xuhai
name: Shi, Yuanchun
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences
subject: H.5.2; I.2.7
subject: 68U35

description: Problematic smartphone use negatively affects physical and mental health. Despite the wide range of prior research, existing persuasive techniques are not flexible enough to provide dynamic persuasion content based on users' physical contexts and mental states. We first conducted a Wizard-of-Oz study (N=12) and an interview study (N=10) to summarize the mental states behind problematic smartphone use: boredom, stress, and inertia. This informs our design of four persuasion strategies: understanding, comforting, evoking, and scaffolding habits. We leveraged large language models (LLMs) to enable the automatic and dynamic generation of effective persuasion content. We developed MindShift, a novel LLM-powered problematic smartphone use intervention technique. MindShift takes users' in-the-moment app usage behaviors, physical contexts, mental states, goals \& habits as input, and generates personalized and dynamic persuasive content with appropriate persuasion strategies. We conducted a 5-week field experiment (N=25) to compare MindShift with its simplified version (remove mental states) and baseline techniques (fixed reminder). The results show that MindShift improves intervention acceptance rates by 4.7-22.5% and reduces smartphone usage duration by 7.4-9.8%. Moreover, users have a significant drop in smartphone addiction scale scores and a rise in self-efficacy scale scores. Our study sheds light on the potential of leveraging LLMs for context-aware persuasion in other behavior change domains.
description: Published at ACM CHI'24
SPLENDAQ: A Detector-Agnostic Data Acquisition System for Small-Scale Physics Experiments
Creators: name: Watkins, S. L.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Many scientific applications from rare-event searches to condensed matter system characterization to high-rate nuclear experiments require time-domain triggering on a raw stream of data, where the triggering is generally threshold-based or randomly acquired. When carrying out detector R&D, there is a need for a general data acquisition (DAQ) system to quickly and efficiently process such data. In the SPLENDOR collaboration, we are developing the Python-based SPLENDAQ package for this exact purpose - it offers two main features for offline analysis of continuous data: a threshold-triggering algorithm based on the time-domain optimal filter formalism and an algorithm for randomly choosing nonoverlapping segments for noise measurements. Combined with the commercially available Moku platform, developed by Liquid Instruments, we have a full pipeline of event building off raw data with minimal setup. Here, we review the underlying principles of this detector-agnostic DAQ package and give concrete examples of its utility in various applications.
description: 6 pages, 6 figures, 2 tables, conference proceedings for LTD20
Boundary signature of singularity in the presence of a shock wave
Creators: name: Horowitz, Gary T.
name: Leung, Henry
name: Queimada, Leonel
name: Zhao, Ying
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Matter falling into a Schwarzschild-AdS black hole from the left causes increased focussing of ingoing geodesics from the right, and, as a consequence, they reach the singularity sooner. In a standard Penrose diagram, the singularity "bends down". We show how to detect this feature of the singularity holographically, using a boundary two-point function. We model the matter with a shock wave, and show that this bending down of the singularity can be read off from a novel analytic continuation of the boundary two-point function. Along the way, we obtain a generalization of the recently proposed thermal product formula for two-point correlators.
description: 55 pages, 9 figures; v2: added references
Traces for fractional Sobolev spaces with variable exponents
Creators: name: Del Pezzo, Leandro M.
name: Rossi, Julio D.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this note we prove a trace theorem in fractional spaces with variable exponents. To be more precise, we show that if $p\colon\overlineΩ\times \overlineΩ\to (1,\infty)$ and $q:\partial Ω\rightarrow (1,\infty)$ are continuous functions such that \[ \frac{(n-1)p(x,x)}{n-sp(x,x)}>q(x) \qquad \mbox{in} \partial Ω\cap \{x\in\overlineΩ\colon n-sp(x,x) >0\}, \] then the inequality $$ \Vert f\Vert _{\scriptstyle L^{q(\cdot)}(\partial Ω)} \leq C \left\{\Vert f\Vert _{\scriptstyle L^{\bar{p}(\cdot)}(Ω)}+ [f]_{s,p(\cdot,\cdot)} \right\} $$ holds. Here $\bar{p}(x)=p(x,x)$ and $\lbrack f\rbrack_{s,p(\cdot,\cdot)} $ denotes the fractional seminorm with variable exponent, that is given by \[ \lbrack f\rbrack_{s,p(\cdot,\cdot)} := \inf \left\{λ>0\colon \int_Ω\int_Ω\frac{|f(x)-f(y)|^{p(x,y)}}{λ^{p(x,y)} |x-y|^{n+sp(x,y)}}dxdy<1\right\} \] and $\Vert f\Vert _{\scriptstyle L^{q(\cdot)}(\partial Ω)}$ and $\Vert f\Vert _{\scriptstyle L^{\bar{p}(\cdot)}(Ω)}$ are the usual Lebesgue norms with variable exponent.
description: 10 pages
Improved PCA-based techniques for face and finger-vein recognition systems
Creators: name: Damavandinejadmonfared, Sepehr
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: Biometrics refers to metrics related to human characteristics and biometric technologies use physical or behavioural characteristics of people to identify and recognize an individual. With the ever increasing growth in cybercrimes, biometric technologies have become increasingly important in this digital information age. The focus of this thesisis on the design ans application of new techniques for image based biometrics recognition systems using faces and finger veins. Principal Component Analysis (PCA) is a way of identifying patterns in data, and expressing the data in such a way as to highlight their similarities and differences. The PCA technique plays an important role in feature extraction and dimensionality reduction. In this thesis, we propose a variety of extensions of PCA technique using kernel and entropy based extensions. We have proposed new algorithms to face and finger vein recognition systems and show that these extensions can yield better results in terms of accuracy and performance.
Hydrodynamic mobility of a solid particle nearby a spherical elastic membrane. II. Asymmetric motion
Creators: name: Daddi-Moussa-Ider, Abdallah
name: Lisicki, Maciej
name: Gekle, Stephan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: In this paper, we derive analytical expressions for the leading-order hydrodynamic mobility of a small solid particle undergoing motion tangential to a nearby large spherical capsule whose membrane possesses resistance towards shearing and bending. Together with the results obtained in the first part (Daddi-Moussa-Ider and Gekle, Phys. Rev. E {\bfseries 95}, 013108 (2017)) where the axisymmetric motion perpendicular to the capsule membrane is considered, the solution of the general mobility problem is thus determined. We find that shearing resistance induces a low-frequency peak in the particle self-mobility, resulting from the membrane normal displacement in the same way, although less pronounced, to what has been observed for the axisymmetric motion. In the zero frequency limit, the self-mobility correction near a hard sphere is recovered only if the membrane has a non-vanishing resistance towards shearing. We further compute the particle in-plane mean-square displacement of a nearby diffusing particle, finding that the membrane induces a long-lasting subdiffusive regime. Considering capsule motion, we find that the correction to the pair-mobility function is solely determined by membrane shearing properties. Our analytical calculations are compared and validated with fully resolved boundary integral simulations where a very good agreement is obtained.
description: 17 pages, 9 figures and 64 references. Manuscript accepted for publication in Phys. Rev. E
A discovery of young stellar objects in older clusters of the Large Magellanic Cloud
Creators: name: For, Bi-Qing
name: Bekki, Kenji
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Recent studies have shown that an extended main-sequence turn-off is a common feature among intermediate-age clusters (1--3 Gyr) in the Magellanic Clouds. Multiple-generation star formation and stellar rotation or interacting binaries have been proposed to explain the feature. However, it remains controversial in the field of stellar populations. Here we present the main results of an ongoing star formation among older star clusters in the Large Magellanic Cloud. Cross-matching the positions of star clusters and young stellar objects has yielded 15 matches with 7 located in the cluster center. We demonstrate that this is not by chance by estimating local number densities of young stellar objects for each star cluster. This method is not based on isochrone fitting, which leads to some uncertainties in age estimation and methods of background subtraction. We also find no direct correlation between atomic hydrogen and the clusters. This suggests that gas accretion for fueling the star formation must be happening in situ. These findings support for the multiple-generations scenario as a plausible explanation for the extended main-sequence turn-off.
description: 6 pages, 4 figures, accepted for publication in Monthly Notices of the Royal Astronomical Society Letters. Media release: http://www.icrar.org/starclusters/
Five-loop fermion anomalous dimension for a general gauge group from four-loop massless propagators
Creators: name: Baikov, P. A.
name: Chetyrkin, K. G.
name: Kühn, J. H.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We extend the ${\cal O}(α_s^5)$ result of the analytic calculation of the quark mass anomalous dimension in pQCD [1] to the case of a generic gauge group. We present explicit formulas which express the relevant renormalization constants in terms of four-loop massless propagators. We also use our result to shed new light on the old puzzle of the absence of even zetas in results of perturbative calculations for a class of physical observables.
description: An important reference [47] is corrected
Mean field approach to first and second order phase transitions in ionic liquids
Creators: name: Bier, Sariel
name: Gavish, Nir
name: Uecker, Hannes
name: Yochelis, Arik
Publisher: name: arXiv
Year: 2017
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Ionic liquids are solvent-free electrolytes, some of which possess an intriguing self-assembly property. Using a mean-field framework (based on Onsager's relations) we show that bulk nano-structures arise via type-I and II phase transitions (PT), which directly affect the electrical double layer (EDL) structure. Ginzburg-Landau equation is derived and PT are related to temperature, potential and interactions. The type-I PT occurs for geometrically dissimilar anion/cation ratio and, surprisingly, is induced by perturbations on order of thermal fluctuations. Finally, we compare the insights with the decaying charge layers within the EDL, as widely observed in experiments.