cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Guaranteeing Timed Opacity using Parametric Timed Model Checking
Creators: name: André, Étienne
name: Lime, Didier
name: Marinho, Dylan
name: Sun, Jun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: Formal Languages and Automata Theory (cs.FL)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Information leakage can have dramatic consequences on systems security. Among harmful information leaks, the timing information leakage occurs whenever an attacker successfully deduces confidential internal information. In this work, we consider that the attacker has access (only) to the system execution time. We address the following timed opacity problem: given a timed system, a private location and a final location, synthesize the execution times from the initial location to the final location for which one cannot deduce whether the system went through the private location. We also consider the full timed opacity problem, asking whether the system is opaque for all execution times. We show that these problems are decidable for timed automata (TAs) but become undecidable when one adds parameters, yielding parametric timed automata (PTAs). We identify a subclass with some decidability results. We then devise an algorithm for synthesizing PTAs parameter valuations guaranteeing that the resulting TA is opaque. We finally show that our method can also apply to program analysis.
description: This is the author version of the manuscript of the same name published in ACM Transactions on Software Engineering and Methodology (ToSEM). This work is partially supported by the ANR national research program PACS (ANR-14-CE28-0002), by the ANR-NRF research program ProMiS (ANR-19-CE25-0015), and by ERATO HASUO Metamathematics for Systems Design Project (No. JPMJER1603), JST. arXiv admin note: substantial text overlap with arXiv:1907.00537
1999-Khorasheh-Ahmadi-Gerayeli-Application of Direct Search Optimization for Pharmacokinetic Parameter Estimation
Creators: name: Khorasheh, Farhad
Publisher: name: QUBES Educational Resources
Year: 2023

description: For simple pharmacokinetic compartmental models, analytical solution to the governing differential equations provide a mean to evaluate the associated rate constants. Such methods, however, can not be used used for more complex multi-compartment models.
Barjols, atelier Fabre, Claudie Marcel-Dubois et Maguy Pichonnet-Andral enregistrent Marius, André et Max Fabre ainsi qu'un ami jouant ou chantant le cantique à saint Marcel
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2024

Abstract
Screening of the quantum-confined Stark effect in AlN/GaN nanowire superlattices by Germanium doping
Creators: name: Hille, P.
name: Müßener, J.
name: Becker, P.
name: de la Mata, M.
name: Rosemann, N.
name: Magén, C.
name: Arbiol, J.
name: Teubert, J.
name: Chatterjee, S.
name: Schörmann, J.
name: Eickhoff, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on electrostatic screening of polarization-induced internal electric fields in AlN/GaN nanowire heterostructures with Germanium-doped GaN nanodiscs embedded between AlN barriers. The incorporation of Germanium at concentrations above $10^{20}\,\text{cm}^{-3}$ shifts the photoluminescence emission energy of GaN nanodiscs to higher energies accompanied by a decrease of the photoluminescence decay time. At the same time, the thickness-dependent shift in emission energy is significantly reduced. In spite of the high donor concentration a degradation of the photoluminescence properties is not observed.
description: Manuscript including Supplemental material (15 pages, 5 figures)
Leitura e escrita na educação infantil
Creators: name: Ribeiro, Edicleide Aparecida
name: Alves, Francisca Ivoneide Benício Malaquias
Publisher: name: Id on Line Rev. Mult. Psic.
Year: 2023
Subjects: Alfabetização
Desafios
Docente
Educação
Letramento

description: Este estudo discute a importância do acesso da criança, antes do ensino fundamental, à compreensão da leitura e da escrita participando adequadamente dos eventos em que são oferecidos, construindo uma familiaridade com o mundo da escrita, adquirindo competências básicas de uso da leitura e da escrita e, ainda, desenvolvendo atitudes positivas em relação à importância e valor da escrita na vida social e individual. O objetivo é compreender o processo de desenvolvimento da leitura e escrita na Educação Infantil, assim como, analisar o lúdico como ferramenta de favorecimento da escrita e da leitura nas crianças. É um tema que se justifica uma vez que revê paradigmas da educação que consideram que a criança perderia o lúdico. O trabalho foi embasado nas pesquisas de estudiosos atentos ao tema em questão, sendo assim, é uma pesquisa bibliográfica com natureza qualitativa e descritiva. Conclui-se, porém, que, de fato, a perda do lúdico não ocorre, pois é a partir do das brincadeiras que se introduz o conhecimento da escrita e da leitura, respeitando o desenvolvimento das crianças.
Inertia and scaling in deterministic lateral displacement
Creators: name: Bowman, Timothy J.
name: Drazer, German
name: Frechette, Joelle
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The ability to separate and analyze chemical species with high resolution, sensitivity, and throughput is central to the development of microfluidics systems. Deterministic lateral displacement (DLD) is a continuous separation method based on the transport of species through an array of obstacles. In the case of force-driven DLD (f-DLD), size-based separation can be modelled effectively using a simple particle-obstacle collision model. We use a macroscopic model to study f-DLD and demonstrate, via a simple scaling, that the method is indeed predominantly a size-based phenomenon at low Reynolds numbers. More importantly, we demonstrate that inertia effects provide the additional capability to separate same size particles but of different densities and could enhance separation at high throughput conditions. We also show that a direct conversion of macroscopic results to microfluidic settings is possible with a simple scaling based on the size of the obstacles that results in a universal curve.
Discrete kinetic models for molecular motors: asymptotic velocity and gaussian fluctuations
Creators: name: Faggionato, Alessandra
name: Silvestri, Vittoria
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We consider random walks on quasi one dimensional lattices, as introduced in \cite{FS}. This mathematical setting covers a large class of discrete kinetic models for non-cooperative molecular motors on periodic tracks. We derive general formulas for the asymptotic velocity and diffusion coefficient, and we show how to reduce their computation to suitable linear systems of the same degree of a single fundamental cell, with possible linear chain removals. We apply the above results to special families of kinetic models, also catching some errors in the biophysics literature.
description: 32 pages, 5 figures. modified comments concerning ref. [12] after private communications of the author (A.B. Kolomeisky)
Chiral flow in a binary mixture of two-dimensional active disks
Creators: name: López-Castaño, Miguel Ángel
name: Rodríguez-Rivas, Álvaro
name: Reyes, Francisco Vega
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study, experimentally, the dynamics of a binary mixture of air-fluidized disks. The disks are chiral since they incorporate a set of blades with constant tilt. Both species are identical except for their blades tilt angle, which is rotated by 180o in the second species. We analyze the phase behavior of the system. Our analysis reveals a wide range of different fluid dynamics, including chiral flow. This chiral flow features in its base state a large vortex. We report, for certain ranges of relative particle density of each species, inversion of the vorticity of this vortex. We discuss on the possible mechanisms behind these chiral flow transitions.
description: Additional data can be found in: https://doi.org/10.5281/zenodo.6647704
The Air Entertainment of Mortar
Creators: name: Beningfield, Neil
Publisher: name: London South Bank University
Year: 1987

description: The history of air entrainment and of mortar is considered and the current picture with respect to air entrained mortar reviewed. A review is presented of the literature dealing with the mechanisms of air entrainment, the materials used and the effect on the amount and type of air of imposed conditions of procedure and mix design. Methods for determination of air content are reviewed and comparative experimental research reported. The major conclusions are that the current British Standard test methods are insufficient with respect to procedural detail and any assessment of statistical accuracy. Of the two, the density method is the most reproducible. Research into the effect of many variations in mix proportion, material type, plant and procedure on air content is reported. For ‘the air entraining agent tested it was found that the air content generally decreased with mixing time having reached a maximum after two minutes mixing. The reduction in air content was not related to drying or to attrition of the sand and was more marked with increasing fineness of the sand originally used. It was unaffected by silt or clay in the sand. With very high cement contents there was little or no air loss with mixing time. Sand grading, cement fine ness and alkali content affect air content but neither sand particle shape nor composition has any affect.
Discrete Spacetime and Relativistic Quantum Particles
Creators: name: Farrelly, Terence C.
name: Short, Anthony J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a single quantum particle in discrete spacetime evolving in a causal way. We see that in the continuum limit any massless particle with a two dimensional internal degree of freedom obeys the Weyl equation, provided that we perform a simple relabeling of the coordinate axes or demand rotational symmetry in the continuum limit. It is surprising that this occurs regardless of the specific details of the evolution: it would be natural to assume that discrete evolutions giving rise to relativistic dynamics in the continuum limit would be very special cases. We also see that the same is not true for particles with larger internal degrees of freedom, by looking at an example with a three dimensional internal degree of freedom that is not relativistic in the continuum limit. In the process we give a formula for the Hamiltonian arising from the continuum limit of massless and massive particles in discrete spacetime.
description: 6 pages
Convergence rates of empirical block length selectors for block bootstrap
Creators: name: Nordman, Daniel J.
name: Lahiri, Soumendra N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We investigate the accuracy of two general non-parametric methods for estimating optimal block lengths for block bootstraps with time series - the first proposed in the seminal paper of Hall, Horowitz and Jing (Biometrika 82 (1995) 561-574) and the second from Lahiri et al. (Stat. Methodol. 4 (2007) 292-321). The relative performances of these general methods have been unknown and, to provide a comparison, we focus on rates of convergence for these block length selectors for the moving block bootstrap (MBB) with variance estimation problems under the smooth function model. It is shown that, with suitable choice of tuning parameters, the optimal convergence rate of the first method is $O_p(n^{-1/6})$ where $n$ denotes the sample size. The optimal convergence rate of the second method, with the same number of tuning parameters, is shown to be $O_p(n^{-2/7})$, suggesting that the second method may generally have better large-sample properties for block selection in block bootstrap applications beyond variance estimation. We also compare the two general methods with other plug-in methods specifically designed for block selection in variance estimation, where the best possible convergence rate is shown to be $O_p(n^{-1/3})$ and achieved by a method from Politis and White (Econometric Rev. 23 (2004) 53-70).
description: Published in at http://dx.doi.org/10.3150/13-BEJ511 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Performance Analysis Of Neural Network Models For Oxazolines And Oxazoles Derivatives Descriptor Dataset
Creators: name: Doreswamy
name: Vastrad, Chanabasayya . M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Neural networks have been used successfully to a broad range of areas such as business, data mining, drug discovery and biology. In medicine, neural networks have been applied widely in medical diagnosis, detection and evaluation of new drugs and treatment cost estimation. In addition, neural networks have begin practice in data mining strategies for the aim of prediction, knowledge discovery. This paper will present the application of neural networks for the prediction and analysis of antitubercular activity of Oxazolines and Oxazoles derivatives. This study presents techniques based on the development of Single hidden layer neural network (SHLFFNN), Gradient Descent Back propagation neural network (GDBPNN), Gradient Descent Back propagation with momentum neural network (GDBPMNN), Back propagation with Weight decay neural network (BPWDNN) and Quantile regression neural network (QRNN) of artificial neural network (ANN) models Here, we comparatively evaluate the performance of five neural network techniques. The evaluation of the efficiency of each model by ways of benchmark experiments is an accepted application. Cross-validation and resampling techniques are commonly used to derive point estimates of the performances which are compared to identify methods with good properties. Predictive accuracy was evaluated using the root mean squared error (RMSE), Coefficient determination(???), mean absolute error(MAE), mean percentage error(MPE) and relative square error(RSE). We found that all five neural network models were able to produce feasible models. QRNN model is outperforms with all statistical tests amongst other four models.
Lower bounds to the accuracy of inference on heavy tails
Creators: name: Novak, S. Y.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: The paper suggests a simple method of deriving minimax lower bounds to the accuracy of statistical inference on heavy tails. A well-known result by Hall and Welsh (Ann. Statist. 12 (1984) 1079-1084) states that if $\hatα_n$ is an estimator of the tail index $α_P$ and $\{z_n\}$ is a sequence of positive numbers such that $\sup_{P\in{\mathcal{D}}_r}\mathbb{P}(|\hatα_n-α_P|\ge z_n)\to0$, where ${\mathcal{D}}_r$ is a certain class of heavy-tailed distributions, then $z_n\gg n^{-r}$. The paper presents a non-asymptotic lower bound to the probabilities $\mathbb{P}(|\hatα_n-α_P|\ge z_n)$. We also establish non-uniform lower bounds to the accuracy of tail constant and extreme quantiles estimation. The results reveal that normalising sequences of robust estimators should depend in a specific way on the tail index and the tail constant.
description: Published in at http://dx.doi.org/10.3150/13-BEJ512 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Visible yet invisible : exploring the experiences and sense of belonging of East Asian American students post-college major decision
Creators: name: Yang, Hollie Hayoung
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: Asian American
East Asian American
Second generation
College major choice
College experience
Academic experience
Social experience
Sense of belonging

description: Choosing a college major is an important decision, setting the academic trajectory for undergraduate students. Therefore, extensive researched has been conducted to understand the influential factors in their college major decision-making process. While existing research posits personal interests as the main influential factor, studies have found that parental influence and other external factors play a critical role in Asian American students’ decisions. For these students who are heavily influenced by external factors, the impact of their decision on their overall college experience is unknown. Because Korean and Chinese American college students reported experiencing lower levels of sense of belonging compared to their Asian ethnic peers (Li, 2018) despite having among the highest rate of degree attainment, this study focused on the experiences of East Asian American college students. Using a phenomenological approach, this study explored the potential contribution of college major decision on the overall college experience and sense of belonging for nine second-generation East Asian American students. To guide the study, a conceptual framework incorporating Astin’s (1991) Input-Environment-Output Model, Accapadi’s (2012) Point of Entry Model for Asian American Identity Consciousness, and Cultural Identity Theory was constructed. The findings supported existing literature that personal interest was a significant factor in participants’ college major decision, but parental influence and cultural values were found to also play an integral role in this decision and continued to impact the ways in which participants navigated their undergraduate career. While mixed findings were discovered regarding participants’ belonging in their major, participants largely experienced belonging through the social connections built on campus. Overall, the findings of the study revealed the complexities that participants had to navigate through in their college major decision and demonstrated the interconnectedness of their decision with their academic and social experience and overall sense of belonging. Furthermore, these findings indicate the need for further research on the experiences of East Asian American students and Asian American students broadly to better support this student population.
Study of the calibration of X-T relation for the BESIII drift chamber
Creators: name: Kang, Xiao-Lin
name: Wu, Ling-Hui
name: Wu, Zhi
name: Luo, Tao
name: Hu, Chen
name: Wang, Hai-Xai
name: Fang, Shuang-Shi
name: He, Kang-Lin
name: Li, Wei-Dong
name: Li, Wei-Guo
name: Mao, Ze-Pu
name: Wang, Liang-Liang
name: Yuan, Ye
name: Zhang, Yao
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This paper introduces the calibration of the time-to-distance relation for the BESIII drift chamber. The parameterization of the time-to-distance relation is presented. The studies of left-right asymmetry and the variation with the entrance angle are performed. The impact of dead channels on the time-to-distance relation is given special attention in order to reduce the shifts of the measured momenta for the tracks passing near dead cells. Finally we present the spatial resolution (123 μm) for barrel Bhabha events (|cosθ|<0.8) from J/ψ data taken in 2012.
M5.2 - Guidelines for repositories and registries on exposing repository trustworthiness status and FAIR data assessments outcomes
Creators: name: Verburg, Maaike
name: Ulrich, Robert
name: L'Hours, Hervé
name: Huber, Robert
name: Priddy, Mike
name: Davidson, Joy
name: Gonzalez-Beltran, Alejandra
name: Meijas, Gabriela
name: Neidiger, Charlotte
Publisher: name: Zenodo
Year: 2023
Subjects: FAIR-IMPACT
FAIR
FAIR Data
Repository
Trustworthiness
Transparency
FAIR assessment
Guidelines

description: This report presents a first iteration of guidelines that will help to expose relevant information at the organisational and object level to facilitate discovery, provide context, and support interoperability between repositories, registries, and other related stakeholders. By improving the flow of information between stakeholders more trusted perceptions and relationships about the services provided and objects held or referred to by them can be fostered. The guidelines will focus on exposing information about characteristics (e.g. repository name, contact information), information that can inform a sense or status of trust (e.g. a certificate, preservation policy), and information relating to FAIR assessment (e.g. assessment results, tool(s) used). 
Supporting this first list of guidelines, the rationale, methodology, scope, and added value scenarios are all discussed to place the creation of the guidelines in their full context. The report also covers the plans around the further development of the guidelines and the prototype that will implement them, to offer a full picture of the envisioned line of work. The main aim of this report is to continue to invite community-input on the guidelines presented, as it is of great importance that the guidelines are relevant to the community that would implement them. Continuous opportunity for providing feedback on the document (presented on the FAIR-IMPACT website), as well as targeted outreach activities from the project will result in future iterations of the guidelines, and reports on the prototype explorations will depict a practical implementation of the model.
Collective excitations in a large-d model for graphene
Creators: name: Guinea, Francisco
name: Doussal, Pierre Le
name: Wiese, Kay Joerg
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider a model of Dirac fermions coupled to flexural phonons to describe a graphene sheet fluctuating in dimension $2+d$. We derive the self-consistent screening equations for the quantum problem, exact in the limit of large $d$. We first treat the membrane alone, and work out the quantum to classical, and harmonic to anharmonic crossover. For the coupled electron-membrane problem we calculate the dressed two-particle propagators of the elastic and electron interactions and find that it exhibits a collective mode which becomes unstable at some wave-vector $q_{\rm c}$ for large enough coupling $g$. The saddle point analysis, exact at large $d$, indicates that this instability corresponds to spontaneous and simultaneous appearance of gaussian curvature and electron puddles. The relevance to ripples in graphene is discussed.
description: 23 pages, 30 figures
An Atlas for the Pinhole Camera
Creators: name: Agarwal, Sameer
name: Duff, Timothy
name: Lieblich, Max
name: Thomas, Rekha
Publisher: name: arXiv
Year: 2022
Subjects: subject: Algebraic Geometry (math.AG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 14Q25, 94A08

description: We introduce an atlas of algebro-geometric objects associated with image formation in pinhole cameras. The nodes of the atlas are algebraic varieties or their vanishing ideals related to each other by projection or elimination and restriction or specialization respectively. This atlas offers a unifying framework for the study of problems in 3D computer vision. We initiate the study of the atlas by completely characterizing a part of the atlas stemming from the triangulation problem. We conclude with several open problems and generalizations of the atlas.
description: 47 pages with references and appendices, final version
Laser beam complex amplitude measurement by phase diversity
Creators: name: Védrenne, Nicolas
name: Mugnier, Laurent M.
name: Michau, Vincent
name: Velluet, Marie-Thérèse
name: Bierent, Rudolph
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The control of the optical quality of a laser beam requires a complex amplitude measurement able to deal with strong modulus variations and potentially highly perturbed wavefronts. The method proposed here consists in an extension of phase diversity to complex amplitude measurements that is effective for highly perturbed beams. Named CAMELOT for Complex Amplitude MEasurement by a Likelihood Optimization Tool, it relies on the acquisition and processing of few images of the beam section taken along the optical path. The complex amplitude of the beam is retrieved from the images by the minimization of a Maximum a Posteriori error metric between the images and a model of the beam propagation. The analytical formalism of the method and its experimental validation are presented. The modulus of the beam is compared to a measurement of the beam profile, the phase of the beam is compared to a conventional phase diversity estimate. The precision of the experimental measurements is investigated by numerical simulations.
description: Accepted for publication in Optics Express
Concealing Dirac neutrinos from cosmic microwave background
Creators: name: Biswas, Anirban
name: Ghosh, Dilip Kumar
name: Nanda, Dibyendu
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The existence of prolonged radiation domination prior to the Big Bang Nucleosynthesis (BBN), starting just after the inflationary epoch, is not yet established unanimously. If instead, the universe undergoes a non-standard cosmological phase, it will alter the Hubble expansion rate significantly and may also generate substantial entropy through non-adiabatic evolution. This leads to a thumping impact on the properties of relic species decoupled from the thermal bath before the revival of the standard radiation domination in the vicinity of the BBN. In this work, considering the Dirac nature of neutrinos, we have studied decoupling of ultra-relativistic right-handed neutrinos ($ν_R$s) in presence of two possible non-standard cosmological phases. While in both cases we have modified Hubble parameters causing faster expansions in the early universe, one of the situations predicts a non-adiabatic evolution and thereby a slower redshift of the photon temperature due to the expansion. Considering the most general form of the collision term with Fermi-Dirac distribution and Pauli blocking factors, we have solved the Boltzmann equation numerically to obtain $Δ{\rm N}_{\rm eff}$ for the three right-handed neutrinos. We have found that for a large portion of parameter space, the combined effect of early decoupling of $ν_R$ as well as the slower redshift of photon bath can easily hide the signature of right-handed neutrinos, in spite of precise measurement of $Δ{\rm N}_{\rm eff}$, at the next generation CMB experiments like CMB-S4, SPT-3G etc. This however will not be applicable for the scenarios with only fast expansion.
description: 31 pages, 9 figures, Version accepted for publication in JCAP
How to test the "quantumness" of a quantum computer?
Creators: name: Zagoskin, Alexandre M.
name: Ilichev, Evgeni
name: Grajcar, Miroslav
name: Betouras, Joseph J.
name: Nori, Franco
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We discuss whether, to what extent and how a quantum computing device can be evaluated and simulated using classical tools.
description: Submitted 12.10.2013
Identifying High Energy Neutrino Transients by Neutrino Multiplet-Triggered Followups
Creators: name: Yoshida, Shigeru
name: Murase, Kohta
name: Tanaka, Masaomi
name: Shimizu, Nobuhiro
name: Ishihara, Aya
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Transient sources such as supernovae (SNe) and tidal disruption events are candidates of high energy neutrino sources. However, SNe commonly occur in the universe and a chance coincidence of their detection with a neutrino signal cannot be avoided, which may lead to a challenge of claiming their association with neutrino emission. In order to overcome this difficulty, we propose a search for $\sim10-100$ TeV neutrino multiple events within a timescale of $\sim 30$ days coming from the same direction, called neutrino multiplets. We show that demanding multiplet detection by a $\sim 1$ km$^3$ neutrino telescope limits distances of detectable neutrino sources, which enables us to identify source counterparts by multiwavelength observations owing to the substantially reduced rate of the chance coincidence detection of transients. We apply our results by constructing a feasible strategy for optical followup observations and demonstrate that wide-field optical telescopes with a $\gtrsim4$ m dish should be capable of identifying a transient associated with a neutrino multiplet. We also present the resultant sensitivity of multiplet neutrino detection as a function of the released energy of neutrinos and burst rate density. A model of neutrino transient sources with an emission energy greater than ${\rm a~few}\times 10^{51}$erg and a burst rate rarer than ${\rm a~few}\times 10^{-8}\ {\rm Mpc}^{-3}\ {\rm yr}^{-1}$ is constrained by the null detection of multiplets by a $\sim 1$km$^3$ scale neutrino telescope. This already disfavors the canonical high-luminosity gamma ray bursts and jetted tidal disruption events as major sources in the TeV-energy neutrino sky.
description: The version accepted for publication in ApJ
Exertional heat stress promotes the presence of bacterial DNA in plasma: A counterbalanced randomised controlled trial
Creators: name: Henningsen, K
name: Henry, R
name: Gaskell, Stephanie
name: Alcock, Rebekah
name: Mika, A
name: Rauch, C
name: Cheuvront, SN
name: Blazy, P
name: Kenefick, R
name: Costa, RJS
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 3101
subject: Biochemistry and cell biology
classificationCode: 4207
subject: Sports science and exercise
classificationCode: 5201
subject: Applied and developmental psychology
classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences
classificationCode: 3202
subject: Clinical sciences

description: Objectives: The primary aim was to explore the impact of exertional-heat stress (EHS) promoted exercise-associated bacteraemia. A secondary aim was to examine if an amino acid beverage (AAB) intervention may mitigate exercise-associated bacteraemia. Design: Counterbalanced randomised control trial. Methods: Twenty endurance trained male participants completed two randomised EHS trials. On one occasion, participants consumed a 237 mL AAB twice daily for 7 days prior, immediately before and every 20 min during EHS (2 h running at 60 % V̇O2max in 35 °C). On the other occasion, a water volume control (CON) equivalent was consumed. Whole blood samples were collected pre- and immediately post-EHS, and were analysed for plasma DNA concentration by fluorometer quantification after microbial extraction, and bacterial relative abundance by next generation 16s rRNA gene sequencing. Results: Increased concentration of microbial DNA in plasma pre- to post-EHS was observed on CON (pre-EHS 0.014 ng/μL, post-EHS 0.039 ng/μL) (p < 0.001) and AAB (pre-EHS 0.015 ng/μL, post-EHS 0.031 ng/μL) (p < 0.001). The magnitude of change from pre- to post-exercise on AAB was 40 % lower, but no significant difference was observed versus CON (p = 0.455). Predominant bacterial groups identified included: phyla-Proteobacteria (88.0 %), family-Burkholderiaceae (59.1 %), and genus-Curvibacter (58.6 %). No significant variation in absolute and relative change in α-diversity and relative abundance for phyla, family, and genus bacterial groups was observed in AAB versus CON. Conclusions: The increased presence of microbial-bacterial DNA in systemic circulation in response to EHS appears positive in all participants. An amino acid beverage supplementation period prior to and consumption during EHS did not provide significant attenuation of EHS-associated bacteraemia.
Results and prospects of deep under-ground, under-water and under-ice experiments
Creators: name: Zornoza, J. D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Astroparticle experiments have provided a long list of achievements both for particle physics and astrophysics. Many of these experiments require to be protected from the background produced by cosmic rays in the atmosphere. The main options for such protection are to build detectors deep under ground (mines, tunnels) or in the deep sea or antarctic ice. In this proceeding we review the main results shown in the RICAP 2013 conference related with these kind of experiments and the prospects for the future.
description: 30 pages, 19 figures, Proceedings of RICAP13
Portfolio Selection Under Buy-In Threshold Constraints Using DC Programming and DCA
Creators: name: Thi, Hoai An Le
name: Moeini, Mahdi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: In matter of Portfolio selection, we consider a generalization of the Markowitz Mean-Variance model which includes buy-in threshold constraints. These constraints limit the amount of capital to be invested in each asset and prevent very small investments in any asset. The new model can be converted into a NP-hard mixed integer quadratic programming problem. The purpose of this paper is to investigate a continuous approach based on DC programming and DCA for solving this new model. DCA is a local continuous approach to solve a wide variety of nonconvex programs for which it provided quite often a global solution and proved to be more robust and efficient than standard methods. Preliminary comparative results of DCA and a classical Branch-and-Bound algorithm will be presented. These results show that DCA is an efficient and promising approach for the considered portfolio selection problem.
description: Proceedings of third International Conference on Service Systems and Service Management (SSSM'06/IEEE), Troyes, Oct. 2006, pp. 296-300 (2006). arXiv admin note: text overlap with arXiv:cs/0501005 by other authors
Random telegraph noise in metallic single-walled carbon nanotubes
Creators: name: Chung, Hyun-Jong
name: Uhm, Tae Woo
name: Kim, Sung Won
name: You, Young Gyu
name: Lee, Sang Wook
name: Jhang, Sung Ho
name: Campbell, Eleanor E. B.
name: Park, Yung Woo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have investigated random telegraph noise (RTN) observed in individual metallic carbon nanotubes (CNTs). Mean lifetimes in high- and low-current states, shigh and slow, have been studied as a function of bias-voltage and gate-voltage as well as temperature. By analyzing the statistics and features of the RTN, we suggest that this noise is due to the random transition of defects between two metastable states, activated by inelastic scattering with conduction electrons. Our results indicate an important role of defect motions in the 1=f noise in CNTs.
description: 4 pages
Image of Kerr-Melvin black hole with thin accretion disk
Creators: name: Hou, Yehui
name: Zhang, Zhenyu
name: Yan, Haopeng
name: Guo, Minyong
name: Chen, Bin
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this present work, we study the observational appearance of Kerr-Melvin black hole (KMBH) illuminated by an accretion disk. The accretion disk is assumed to be located on the equatorial plane and be thin both geometrically and optically. Considering the fact that outside the innermost stable circular orbit (ISCO) the accretion flow moves in prograde or retrograde circular orbit and falls towards the horizon along plunging orbit inside the ISCO, we develop the numerical backward ray-tracing method and obtain the images of KMBH accompanying with the accretion disk for various black hole spins, strengths of magnetic fields and inclination angles of observers. We present the intensity distribution horizontally and longitudinally and show the profiles of the red-shift for the direct and lensed images. Our study suggests that the inner shadow and critical curves can be used to estimate the magnetic field around a black hole without degeneration.
description: 24 pages, 10 figures
Conditions for convergence of random coefficient AR(1) processes and perpetuities in higher dimensions
Creators: name: Erhardsson, Torkel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: A $d$-dimensional RCA(1) process is a generalization of the $d$-dimensional AR(1) process, such that the coefficients $\{M_t;t=1,2,\ldots\}$ are i.i.d. random matrices. In the case $d=1$, under a nondegeneracy condition, Goldie and Maller gave necessary and sufficient conditions for the convergence in distribution of an RCA(1) process, and for the almost sure convergence of a closely related sum of random variables called a perpetuity. We here prove that under the condition $\Vert {\prod_{t=1}^nM_t}\Vert \stackrel{\mathrm{a.s.}}{\longrightarrow}0$ as $n\to\infty$, most of the results of Goldie and Maller can be extended to the case $d>1$. If this condition does not hold, some of their results cannot be extended.
description: Published in at http://dx.doi.org/10.3150/13-BEJ513 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Graph Convolutional Neural Networks for (QM)ML/MM Molecular Dynamics Simulations
Creators: name: Hofstetter, Albert
name: Böselt, Lennard
name: Riniker, Sereina
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: To accurately study chemical reactions in the condensed phase or within enzymes, both a quantum-mechanical description and sufficient configurational sampling is required to reach converged estimates. Here, quantum mechanics/molecular mechanics (QM/MM) molecular dynamics (MD) simulations play an important role, providing QM accuracy for the region of interest at a decreased computational cost. However, QM/MM simulations are still too expensive to study large systems on longer time scales. Recently, machine learning (ML) models have been proposed to replace the QM description. The main limitation of these models lies in the accurate description of long-range interactions present in condensed-phase systems. To overcome this issue, a recent workflow has been introduced combining a semi-empirical method (i.e. density functional tight binding (DFTB)) and a high-dimensional neural network potential (HDNNP) in a $Δ$-learning scheme. This approach has been shown to be capable of correctly incorporating long-range interactions within a cutoff of 1.4 nm. One of the promising alternative approaches to efficiently take long-range effects into account is the development of graph convolutional neural networks (GCNN) for the prediction of the potential-energy surface. In this work, we investigate the use of GCNN models -- with and without a $Δ$-learning scheme -- for (QM)ML/MM MD simulations. We show that the $Δ$-learning approach using a GCNN and DFTB and as baseline achieves competitive performance on our benchmarking set of solutes and chemical reactions in water. The method is additionally validated by performing prospective (QM)ML/MM MD simulations of retinoic acid in water and S-adenoslymethioniat interacting with cytosine in water. The results indicate that the $Δ$-learning GCNN model is a valuable alternative for (QM)ML/MM MD simulations of condensed-phase systems.
A Simple Model for Global HI Profiles of Galaxies
Creators: name: Stewart, I. M.
name: Blyth, S. -L.
name: de Blok, W. J. G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Context. Current and future blind surveys for HI generate large catalogs of spectral lines for which automated characterization would be convenient. Aims. A 6-parameter mathematical model for HI galactic spectral lines is described. The aim of the paper is to show that this model is indeed a useful way to characterize such lines. Methods. The model is fitted to spectral lines extracted for the 34 spiral galaxies of the recent high-definition THINGS survey. Three scenarios with different instrumental characteristics are compared. Quantities obtained from the model fits, most importantly line width and total flux, are compared with analog quantities measured in more standard, non-parametric ways. Results. The model is shown to be a good fit to nearly all the THINGS profiles. When extra noise is added to the test spectra, the fits remain consistent; the model-fitting approach is also shown to return superior estimates of linewidth and flux under such conditions.
description: 27 pages, 60 figures. Accepted for publication in A&A
Library of Stains
Creators: name: Wacha, Heather
Publisher: name: Zenodo
Year: 2018
Subjects: multispectral imaging, medieval manuscripts, materiality, stains

description: The Library of Stains Project, also known as Labeculae Vivae, Latin for “#stainsalive”, is using multispectral imaging to gather scientific data, drawn from stains found on parchment, paper, and bindings in medieval and early modern books.  The project, generously supported by the Council on Library and Information Resources (CLIR) through a Postdoctoral Fellowship Microgrant, evolved from the interests of three CLIR Postdoctoral fellows in Data Curation: Dr Erin Connelly at the Schoenberg Institute for Manuscript Studies (SIMS), University of Pennsylvania Libraries, whose research interests focus on medieval medicine, Dr Alberto Campagnolo at the Library of Congress, who researches the book in general and how to model the book as an object in the digital world, and Dr Heather Wacha at the University of Wisconsin-Madison, whose research addresses how the materiality of manuscripts informs the historical context and content of a book. Each of these academic institutions holds a significant manuscript and/or print collection and each fellow is working on digital projects that intersect with those collections in some way.

Thanks to CLIR, the Library of Stains Project was able to bring together multiple institutions and collaborators, including Dr Fenella France, Chief Preservation Officer at the Library of Congress, Michael Toth of RB Toth and Associates and Dr William Christens-Barry of Equipoise Imaging, who provided the multispectral imaging equipment, as well as invaluable guidance during the imaging process and analysis at the Universities of Pennsylvania, Iowa, and Wisconsin.

The data visualizations of preliminary results from a selection of manuscripts are currently hosted in Digital Mappa under the title of 'Library of Stains Project.'
Auditing Ranked Voting Elections with Dirichlet-Tree Models: First Steps
Creators: name: Everest, Floyd
name: Blom, Michelle
name: Stark, Philip B.
name: Stuckey, Peter J.
name: Teague, Vanessa
name: Vukcevic, Damjan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applications (stat.AP)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Ranked voting systems, such as instant-runoff voting (IRV) and single transferable vote (STV), are used in many places around the world. They are more complex than plurality and scoring rules, presenting a challenge for auditing their outcomes: there is no known risk-limiting audit (RLA) method for STV other than a full hand count. We present a new approach to auditing ranked systems that uses a statistical model, a Dirichlet-tree, that can cope with high-dimensional parameters in a computationally efficient manner. We demonstrate this approach with a ballot-polling Bayesian audit for IRV elections. Although the technique is not known to be risk-limiting, we suggest some strategies that might allow it to be calibrated to limit risk.
description: 5 pages, 2 figures, accepted for E-Vote-ID 2022. This version has an updated URL for the software package
Trabalhando a questão do racismo na educação infantil
Creators: name: Conceição, Josélia Maria da
name: Alves, Francisca Ivoneide Benício Malaquias
Publisher: name: Id on Line Rev. Mult. Psic.
Year: 2023
Subjects: Educação Infantil
Preconceito
Racismo
Sociedade

description: Racismo é um assunto gerador de discussões e é justamente por isso que houve a provocação para a escolha do tema. Sabe-se que o preconceito foi disseminado na convivência entre o negro e o branco, o que causou a discriminação racial e o consequentemente, o racismo. Racismo na sociedade, sabe-se que é fato por parte de muitos, mas e dentro das escolas? O que é ensinado dentro das instituições de Educação Infantil? Este trabalho tem como objetivo discutir o racismo dentro escolas de Educação Infantil (EI). No mundo infantil, quase nunca há evidências de discriminação racial, mas é preciso prestar atenção para as práticas racistas mesmo que pareçam inconscientes. Para isso, realizou-se uma pesquisa bibliográfica, de natureza qualitativa e descritiva, a fim de analisar as possíveis ou existentes práticas de racismo e discriminação dentro da etapa da Educação Infantil.
Differential geometry and scalar gravitational waves
Creators: name: Corda, Christian
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Following some strong argumentations of differential geometry in the Landau's book, some corrections about errors in the old literature on scalar gravitational waves (SGWs) are given and discussed. In the analysis of the response ofi nterferometers the computation is first performed in the low frequencies approximation, then the analysis is applied to all SGWs in the full frequency and angular dependences. The presented results are in agreement with the more recent literature on SGWs.
description: 28 pages, 5 figures, published in The Hadronic Journal