cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
David Sulz, Public Services Librarian, East Asian Studies Subject Liaison, University of Alberta (Chapter 20 in Inside Major East Asian Library Collections in North America, Vol.1, ed. Lo et al
Creators: Sulz, David
Publisher: name: University of Alberta Library
Year: 2022

This is chapter 20 from Inside Major East Asian Library Collections in North America (2 volumes).

"As a branch of International and Area Studies Librarianship (IASL), East Asian Librarianship has become increasingly important in an age of

globalization as scholars engage in interdisciplinary research and study.  [This book] presents an extensive collection of interviews that give key insights into Japanese and Korean librarianship. East Asian Studies librarianship requires a variety of technical skills, combining deep subject background with knowledge of library processes/workflows, an awareness of research trends, and digital developments in their respective fields. Professionalism, tradition, standards, respected bodies of knowledge and individual practicing professionals’ personality traits are closely examined. over both volumes. Inside Major East Asian Library Collections in North America promotes shared understanding of librarians’ work and contribution to society and will enable further collaborations and new services, utilizing the unique and distributed nature of their expertise.
Study of fluid displacement in 3D porous media with an improved multi-component pseudopotential lattice Boltzmann method
Creators: name: Sedahmed, M.
name: Coelho, R. C. V.
name: Araújo, N. A. M.
name: Wahba, E. M.
name: Warda, H. A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We generalize to three dimensions (3D) a recently developed improved multi-component pseudopotential lattice Boltzmann method and analyze its applicability to simulate flows through realistic porous media. The model is validated and characterized via benchmarks, and we investigate its performance by simulating the displacement of immiscible fluids in 3D geometries. Two samples are considered, namely, a pack of spheres obtained numerically, and a Bentheimer sandstone rock sample obtained experimentally. We show that, with this model it is possible to simulate realistic viscosity ratios, to tune surface tension independently and, most importantly, to preserve the volume of trapped fluid. We also evaluate the computational performance of the model on the Graphical Processing Unit (GPU) and mention the implemented optimizations to increase the computational speed and reduce the memory requirements.
description: arXiv admin note: text overlap with arXiv:2111.08666
Connecting the Hadron Mass Scale to the Fundamental Mass Scale of Quantum Chromodynamics
Creators: name: Deur, Alexandre
name: Brodsky, Stanley J.
name: de Teramond, Guy F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Establishing an explicit connection between the long distance physics of confinement and the dynamical interactions of quarks and gluons at short distances has been a long-sought goal of quantum chromodynamics. Using holographic QCD, we derive a direct analytic relation between the scale $κ$ which determines the masses of hadrons and the scale $Λ_{s}$ which controls the predictions of perturbative QCD at very short distances. The resulting prediction $Λ_{s}=0.341\pm0.032$ GeV in the $\overline{MS}$ scheme agrees well with the experimental average $0.339\pm0.016$ GeV. We also derive a relation between $Λ_{s}$ and the QCD string tension $σ$. This connection between the fundamental hadronic scale underlying the physics of quark confinement and the perturbative QCD scale controlling hard collisions can be carried out in any renormalization scheme.
description: 11 pages, 4 figures. Final version published in Phys. Lett. B
Input-State-Parameter-Noise Identification and Virtual Sensing in Dynamical Systems: A Bayesian Expectation-Maximization (BEM) Perspective
Creators: name: Teymouri, Daniz
name: Sedehi, Omid
name: Katafygiotis, Lambros S.
name: Papadimitriou, Costas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Structural identification and damage detection can be generalized as the simultaneous estimation of input forces, physical parameters, and dynamical states. Although Kalman-type filters are efficient tools to address this problem, the calibration of noise covariance matrices is cumbersome. For instance, calibration of input noise covariance matrix in augmented or dual Kalman filters is a critical task since a slight variation in its value can adversely affect estimations. The present study develops a Bayesian Expectation-Maximization (BEM) methodology for the uncertainty quantification and propagation in coupled input-state-parameter-noise identification problems. It also proposes the incorporation of input dummy observations for stabilizing low-frequency components of the latent states and mitigating potential drifts. In this respect, the covariance matrix of the dummy observations is also calibrated based on the measured data. Additionally, an explicit formulation is provided to study the theoretical observability of the Bayesian estimators, which helps characterize the minimum sensor requirements. Ultimately, the BEM is tested and verified through numerical and experimental examples, wherein sensor configurations, multiple input forces, and abrupt stiffness changes are investigated. It is confirmed that the BEM provides accurate estimations of states, input, and parameters while characterizing the degree of belief in these estimations based on the posterior uncertainties driven by applying a Bayesian perspective.
A junction condition by specified homogenization and application to traffic lights
Creators: name: Galise, Giulio
name: Imbert, Cyril
name: Monneau, Régis
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: Given a coercive Hamiltonian which is quasi-convex with respect to the gradient variable and periodic with respect to time and space at least "far away from the origin", we consider the solution of the Cauchy problem of the corresponding Hamilton-Jacobi equation posed on the real line. Compact perturbations of coercive periodic quasi-convex Hamiltonians enter into this framework for example. We prove that the rescaled solution converges towards the solution of the expected effective Hamilton-Jacobi equation, but whose "flux" at the origin is "limited" in a sense made precise by the authors in \cite{im}. In other words, the homogenization of such a Hamilton-Jacobi equation yields to supplement the expected homogenized Hamilton-Jacobi equation with a junction condition at the single discontinuous point of the effective Hamiltonian. We also illustrate possible applications of such a result by deriving, for a traffic flow problem, the effective flux limiter generated by the presence of a finite number of traffic lights on an ideal road. We also provide meaningful qualitative properties of the effective limiter.
description: 41 pages
Federated and Transfer Learning: A Survey on Adversaries and Defense Mechanisms
Creators: name: Hallaji, Ehsan
name: Razavi-Far, Roozbeh
name: Saif, Mehrdad
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Cryptography and Security (cs.CR)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: The advent of federated learning has facilitated large-scale data exchange amongst machine learning models while maintaining privacy. Despite its brief history, federated learning is rapidly evolving to make wider use more practical. One of the most significant advancements in this domain is the incorporation of transfer learning into federated learning, which overcomes fundamental constraints of primary federated learning, particularly in terms of security. This chapter performs a comprehensive survey on the intersection of federated and transfer learning from a security point of view. The main goal of this study is to uncover potential vulnerabilities and defense mechanisms that might compromise the privacy and performance of systems that use federated and transfer learning.
description: Accepted for publication in edited book titled "Federated and Transfer Learning", Springer, Cham
Supplementary Information from The effectiveness of pseudomagic traits in promoting premating isolation
Creators: name: Aubier, Thomas G.
name: Bürger, Reinhard
name: Servedio, Maria R.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 60102 Bioinformatics
subject: FOS: Computer and information sciences
subject: 10202 Biological Mathematics
subject: FOS: Mathematics

description: Upon the secondary contact of populations, speciation with gene flow is greatly facilitated when the same pleiotropic loci are both subject to divergent ecological selection and induce non-random mating, leading to loci with this fortuitous combination of functions being referred to as ‘magic trait’ loci. We use a population genetics model to examine whether ‘pseudomagic trait’ complexes, composed of physically linked loci fulfilling these two functions, are as efficient in promoting premating isolation as magic traits. We specifically measure the evolution of choosiness, which controls the strength of assortative mating. We show that, surprisingly, pseudomagic trait complexes, and to a lesser extent also physically unlinked loci, can lead to the evolution of considerably stronger assortative mating preferences than do magic traits, provided polymorphism at the involved loci is maintained. This is because assortative mating preferences are generally favoured when there is a risk of producing maladapted recombinants, as occurs with non-magic trait complexes but not with magic traits (since pleiotropy precludes recombination). Contrary to current belief, magic traits may not be the most effective genetic architecture for promoting strong premating isolation. Therefore, distinguishing between magic traits and pseudomagic trait complexes is important when inferring their role in premating isolation. This calls for further fine-scale genomic research on speciation genes.
Process stability of a novel roughing-finishing end mill
Creators: name: Denkena, B.
name: Grabowski, R.
name: Krödel, A.
name: Ellersiek, L.
Publisher: name: Heidelberg : Springer
Year: 2020
Subjects: subject: Finishing
subject: Process damping
subject: Process stability
subject: Roughing
subject: Semi-discretization
subject: Dewey Decimal Classification::600 | Technik::650 | Management

description: In this paper, stability investigations of a novel roughing-finishing end mill are carried out. This tool possesses two sharp finishing teeth and two radially recessed, chamfered roughing teeth. By applying the same tool for roughing and finishing operations, tool changes and process time can be reduced. For the stability investigations, the semi-discretization method for calculating stability charts was extended and made applicable for the novel tool concept by taking into account the radial recession of the chamfered cutting teeth. This is necessary because the radial recession leads to varying time-delays during the tooth engagement. Stability charts were then calculated for roughing-finishing tools with different radial recession as well as for conventional finishing and roughing tools. Furthermore, experimental stability charts were created. The results show a good agreement between calculated and experimental stability charts for the finishing tool. However, the calculated stability limits of the roughing-finishing tool and the roughing tool do not met with the experimental stability limits, which is attributed to inaccuracies in the modelling of process damping. Nevertheless, calculated as well as experimental stability charts indicate a significant increase of the stability limit of the roughing-finishing tool compared to the finishing tool.
Period polynomial relations between formal double zeta values of odd weight
Creators: name: Ma, Ding
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F67, 11M32

description: For odd $k$, we give a formula for the relations between double zeta values $ζ(r,k-r)$ with $r$ even. This formula provides a connection with the space of cusp forms on $\mathrm{SL}_2(\mathbb{Z})$. This is the odd weight analogue of a result by Gangl, Kaneko and Zagier. We also provide an answer of a question asked by Zagier about the left kernel of some matrix. Although the restricted sum statement fails in the odd weight case, we provide an asymptotical statement that replaces it. Our statement works more generally for restricted sums with any congruence condition on the first entry of the double zeta value.
Interactive visualizations to show global migration trends (2000 - 2015)
Creators: name: Jia, Chen
Publisher: name: Zenodo
Year: 2018
Subjects: data visualization
global migration
international migrants
income
USA migrants

description: The platform of visualizations is an HTML based web page that organizes graphs and corresponding interpretations. The web page is styled with CSS. Graphs in the web page are plotted by Tableau, including symbol map, bar chart, bubble chart, tree map, and so on.

The visualization contents include:

	Show the number of global migrants by destination country and by income group from 2000 to 2015.
	Investigate whether a nation’s migrants as a percentage of population is correlated with the country’s income.
	Find out top 10 destination countries.
	Study how migrants have reshaped and influenced destination country by analyzing the case of United States from two perspectives: migrants’ age distribution and predominant origin countries.

Instructions for file:

	Zip file  includes two folders: data and code.
	Folder data contains pre-processed data and raw data from World Bank Open data and the United Nations.
	Folder code contains html files and css files. File  is the home to describe these visualizations. Other three html files are for different taps.
Extensions of stability selection using subsamples of observations and covariates
Creators: name: Beinrucker, Andre
name: Dogan, Ürün
name: Blanchard, Gilles
Publisher: name: arXiv
Year: 2014
Subjects: subject: Methodology (stat.ME)
subject: Computation (stat.CO)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We introduce extensions of stability selection, a method to stabilise variable selection methods introduced by Meinshausen and Bühlmann (J R Stat Soc 72:417-473, 2010). We propose to apply a base selection method repeatedly to random observation subsamples and covariate subsets under scrutiny, and to select covariates based on their selection frequency. We analyse the effects and benefits of these extensions. Our analysis generalizes the theoretical results of Meinshausen and Bühlmann (J R Stat Soc 72:417-473, 2010) from the case of half-samples to subsamples of arbitrary size. We study, in a theoretical manner, the effect of taking random covariate subsets using a simplified score model. Finally we validate these extensions on numerical experiments on both synthetic and real datasets, and compare the obtained results in detail to the original stability selection method.
description: accepted for publication in Statistics and Computing
On the design of terminal ingredients for data-driven MPC
Creators: name: Berberich, Julian
name: Köhler, Johannes
name: Müller, Matthias A.
name: Allgöwer, Frank
Publisher: name: Frankfurt ; München [u.a.] : Elsevier
Year: 2021
Subjects: subject: Design
subject: Invariance
subject: Linear control systems
subject: Predictive control systems
subject: Time varying control systems
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik

description: We present a model predictive control (MPC) scheme to control linear time-invariant systems using only measured input-output data and no model knowledge. The scheme includes a terminal cost and a terminal set constraint on an extended state containing past input-output values. We provide an explicit design procedure for the corresponding terminal ingredients that only uses measured input-output data. Further, we prove that the MPC scheme based on these terminal ingredients exponentially stabilizes the desired setpoint in closed loop. Finally, we illustrate the advantages over existing data-driven MPC approaches with a numerical example.
Revisiting Chernoff Information with Likelihood Ratio Exponential Families
Creators: name: Nielsen, Frank
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The Chernoff information between two probability measures is a statistical divergence measuring their deviation defined as their maximally skewed Bhattacharyya distance. Although the Chernoff information was originally introduced for bounding the Bayes error in statistical hypothesis testing, the divergence found many other applications due to its empirical robustness property found in applications ranging from information fusion to quantum information. From the viewpoint of information theory, the Chernoff information can also be interpreted as a minmax symmetrization of the Kullback--Leibler divergence. In this paper, we first revisit the Chernoff information between two densities of a measurable Lebesgue space by considering the exponential families induced by their geometric mixtures: The so-called likelihood ratio exponential families. Second, we show how to (i) solve exactly the Chernoff information between any two univariate Gaussian distributions or get a closed-form formula using symbolic computing, (ii) report a closed-form formula of the Chernoff information of centered Gaussians with scaled covariance matrices and (iii) use a fast numerical scheme to approximate the Chernoff information between any two multivariate Gaussian distributions.
description: 41 pages
Distinguishing general relativity and $f(R)$ gravity with the gravitational lensing Minkowski functionals
Creators: name: Ling, Chenxiaoji
name: Wang, Qiao
name: Li, Ran
name: Li, Baojiu
name: Wang, Jie
name: Gao, Liang
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We explore the Minkowski functionals of weak lensing convergence map to distinguish between $f(R)$ gravity and the general relativity (GR). The mock weak lensing convergence maps are constructed with a set of high-resolution simulations assuming different gravity models. It is shown that the lensing MFs of $f(R)$ gravity can be considerably different from that of GR because of the environmentally dependent enhancement of structure formation. We also investigate the effect of lensing noise on our results, and find that it is likely to distinguish F5, F6 and GR gravity models with a galaxy survey of $\sim3000$ degree$^2$ and with a background source number density of $n_g=30~{\rm arcmin}^{-2}$, comparable to an upcoming survey dark energy survey (DES). We also find that the $f(R)$ signal can be partially degenerate with the effect of changing cosmology, but combined use of other observations, such as the cosmic microwave background (CMB) data, can help break this degeneracy.
description: 7 pages, 3 figures, Accepted by Physical Review D
Identification of epimutations in rare diseases from a single patient perspective
Creators: name: Grolaux, Robin
name: Hardy, Alexis
name: Defrance, Matthieu
Publisher: name: F1000 Research Limited
Year: 2022

description: Background
 Canonical pipelines for the detection of epimutations based on methylation-array technologies rely on case-control group comparisons. However, in the context of rare diseases and multi-locus imprinting disturbances, small cohorts and inter-patients' heterogeneity prevent the use of those tools. Therefore, there is a need to provide a comprehensible and statistically robust pipeline for clinicians to perform analyses at the single patient level as well as characterize how different parameters may influence epimutation detection.
 Results
 We describe a statistical method to detect differentially methylated regions based on the Z-score and empirical Brown method from a single patient perspective. We generated semi-simulated data to assess how control population, effect size and region size affect epimutations detection, based on a public control population of 521 samples. Finally, we validated the detection of methylation events in patients suffering Beckwith–Wiedemann syndrome (BWS) and rare multilocus imprinting disturbance (MLIDs) and discuss how this method is complementary to the process of clinical diagnosis.
Impact of industrial environments on visible light communication
Creators: name: Schneider, Daniel
name: Shrotri, Abhijeet
name: Flatt, Holger
name: Stübbe, Oliver
name: Wolf, Alexander
name: Lachmayer, Roland
name: Bunge, Christian-Alexander
Publisher: name: Washington, DC : Optica
Year: 2021
Subjects: subject: Crosstalk
subject: Dust
subject: Light sources
subject: Manufacture
subject: Visible light communication
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Visible-light communication is a promising technology for industrial environments. However, a variety of physical effects may influence the communication quality in this potentially harsh environment: Dust and other particles lead to increased attenuation. Artificial light sources and industrial processes, such as grinding and welding, cause optical cross-talk. A multitude of reflective surfaces can lead to fading due to multi-path propagation. These three aspects are experimentally investigated in exemplary manufacturing processes at five different production sites in order to estimate the relative importance and their specific impact on VLC transmission in industrial areas. Spectral measurements demonstrate the presence of interfering light sources, which occupy broad parts of the visible spectrum. They give rise to flickering noise, which comprises a set of frequencies in the electrical domain. The impact of these effects on the communication is analysed with reference to the maximum achievable channel capacity and data rate approximation based on on-off keying is deduced. It is found that cross-talk by environmental and artificial light sources is one of the strongest effects, which influences the optical, but also the electrical spectrum. It is also observed that industrial areas differ strongly and must be categorised according to the manufacturing processes, which can induce quite a variation of dust and attenuation accordingly.
Data Curation from Privacy-Aware Agents
Creators: name: Shahmoon, Roy
name: Smorodinsky, Rann
name: Tennenholtz, Moshe
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: A data curator would like to collect data from privacy-aware agents. The collected data will be used for the benefit of all agents. Can the curator incentivize the agents to share their data truthfully? Can he guarantee that truthful sharing will be the unique equilibrium? Can he provide some stability guarantees on such equilibrium? We study necessary and sufficient conditions for these questions to be answered positively and complement these results with corresponding data collection protocols for the curator. Our results account for a broad interpretation of the notion of privacy awareness.
Социализация государственной экономической политики
Creators: name: SEE HPE "DAMPA"
name: ГОУ ВПО "ДОНАУИГС"
Publisher: name: Zenodo
Year: 2022
Subjects: subject: экономика
subject: управление
subject: финансы
subject: право
subject: economy
subject: control
subject: finance
subject: Law
subject: FOS: Law

description: Социализация государственной экономической политики: выбор Донбасса как необходимость : коллективная монография / Минобрнауки ДНР, ГОУ ВПО «ДОНАУИГС» ; под общ. ред. Л. Б. Костровец. – Донецк : ГОУ ВПО «ДОНАУИГС», 2022. – 703 с.
description: Монография посвящена 30-летию ГОУ ВПО «ДОНЕЦКАЯ АКАДЕМИЯ УПРАВЛЕНИЯ И ГОСУДАРСТВЕННОЙ СЛУЖБЫ ПРИ ГЛАВЕ ДНР». В данном научном труде собраны лучшие результаты исследований по кафедральным научным темам. Он включает в себя три части, охватывает социализаию экономики и управления, а также раскрывает особенности социально-экономического развития территорий и отраслей экономики Донбасса в условиях вызовов внешней среды
Diamond surface engineering for molecular sensing with nitrogen-vacancy centers
Creators: name: Janitz, Erika
name: Herb, Konstantin
name: Völker, Laura A.
name: Huxter, William S.
name: Degen, Christian L.
name: Abendroth, John M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum sensing using optically addressable atomic-scale defects, such as the nitrogen--vacancy (NV) center in diamond, provides new opportunities for sensitive and highly localized characterization of chemical functionality. Notably, near-surface defects facilitate detection of the minute magnetic fields generated by nuclear or electron spins outside of the diamond crystal, such as those in chemisorbed and physisorbed molecules. However, the promise of NV centers is hindered by a severe degradation of critical sensor properties, namely charge stability and spin coherence, near surfaces (< ca. 10 nm deep). Moreover, applications in the chemical sciences require methods for covalent bonding of target molecules to diamond with robust control over density, orientation, and binding configuration. This forward-looking Review provides a survey of the rapidly converging fields of diamond surface science and NV-center physics, highlighting their combined potential for quantum sensing of molecules. We outline the diamond surface properties that are advantageous for NV-sensing applications, and discuss strategies to mitigate deleterious effects while simultaneously providing avenues for chemical attachment. Finally, we present an outlook on emerging applications in which the unprecedented sensitivity and spatial resolution of NV-based sensing could provide unique insight into chemically functionalized surfaces at the single-molecule level.
description: Review paper, 36 pages
Aggregated genomic data as cohort-specific allelic frequencies can boost variants and genes prioritization in non-solved cases of inherited retinal dystrophies
Creators: name: Iancu, Ionut Florin
name: Perea-Romero, Irene
name: Nuñez-Moreno, Gonzalo
name: De La Fuente, Lorena
name: Romero, Raquel
name: Avila-Fernandez, Almudena
name: Trujillo-Tiebas, Maria Jose
name: Riveiro-Alvarez, Rosa
name: Almoguera, Berta
name: Martin-Merida, Inmaculada
name: Pozo-Valero, Marta Del
name: Damian-Verde, Alejandra
name: Corton, Marta
name: Ayuso, Carmen
name: Minguez, Pablo
Publisher: name: F1000 Research Limited
Year: 2022

description: We built an allelic-frequency database for a heterogeneous cohort of genetic diseases to explore the aggregated genomic information and boost diagnosis in inherited retinal dystrophies (IRD).We
 retrospectively selected 5683 index-cases, including 1766 with IRD. We calculated subcohort’s IRD specific allele-frequencies and compare it with suitable pseudocontrols. We prioritized variants with a
 significant increment of frequencies, among them 8 found in IRD non-solved cases that may contribute to explain the phenotype, and 10 out of 11 of uncertain significance that were reclassified as
 likely-pathogenic according to ACMG guides. We also developed a method to highlight genes with more frequent pathogenic variants in non-solved IRD cases than in pseudocontrols weighted by
 the increment of benign variants in the same comparison. Thus, we identified 18 genes for further studies that provided new insights in five cases. Our resource can also help to calculate the carrier
 frequency of deleterious variants in IRD genes, being the most prevalent ABCA4 (~7%) and USH2A (~3%).
 A cohort-specific genomic database and phenotype-specific allele frequencies compared to controls can assist with variants and genes prioritization and operate as an engine that provides new
 hypothesis in specific non-solved cases, hence augmenting disease diagnosis rate.
Unruh-DeWitt detector response across a Rindler firewall is finite
Creators: name: Louko, Jorma
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate a two-level Unruh-DeWitt detector coupled to a massless scalar field or its proper time derivative in $(1+1)$-dimensional Minkowski spacetime, in a quantum state whose correlation structure across the Rindler horizon mimics the stationary aspects of a firewall that Almheiri et al have argued to ensue in an evaporating black hole spacetime. Within first-order perturbation theory, we show that the detector's response on falling through the horizon is sudden but finite. The difference from the Minkowski vacuum response is proportional to $ω^{-2}\ln(|ω|)$ for the non-derivative detector and to $\ln(|ω|)$ for the derivative-coupling detector, both in the limit of a large energy gap $ω$ and in the limit of adiabatic switching. Adding to the quantum state high Rindler temperature excitations behind the horizon increases the detector's response proportionally to the temperature; this situation has been suggested to model the energetic curtain proposal of Braunstein et al. We speculate that the $(1+1)$-dimensional derivative-coupling detector may be a good model for a non-derivative detector that crosses a firewall in $3+1$ dimensions.
description: 24 pages. v4: post-JHEP correction in the parity description of Delta F in Section 5
Advanced Statistical, Mathematical and Computational Techniques with Case Studies
Creators: name: Dr. Praveen Kumar Misra
name: Dr. Anuradha Misra
name: Dr. Dushyant Tyagi
name: Dr. Gunjan Singh
Publisher: name: Zenodo
Year: 2022

description: We are happy to bring out the first volume of ―Advanced Statistical, Mathematical and Computational Techniques with Case Studies‖. The primary aim of presenting this book is to bring out some case based research papers in the field of statistics, mathematics and computer science. The subject matter has been presented in an easy and comprehensive manner to provide detailed insight into these research areas. This book is focused on reviewing and analysing the frequency of use of statistics and the concepts of computer science by researchers across different disciplines. Statistics is the backbone of all researches in the field of data science, machine learning and artificial intelligence. Any new invention is not possible without the implementation of statistical and mathematical algorithms. The statisticians are working day and night to develop new algorithms to full fill the demands of the computer scientists. These computer scientists, with the implementation of statistical concepts, are developing new things to meet the current requirements of the ever developing world. This book is compilation of various researches done. These are in the form of Discrete Analogue of Pseudo Lindley Distribution and Its Properties, a statistical review of MNREGA in West Bengal, Estimation of Wheat Production at Smaller Geographical Area using Explanatory Variables, An Application of Times Series Modeling to Forecast Sugarcane Production in Uttar Pradesh, Online versus Offline Shopping: A Case Study in Lucknow, Uttar Pradesh, Bayesian Estimation procedure for the scale parameter of two parameter Weibull distribution, Comparative Study of Rough Sets for decision making in IF Approximation Space: A New Approach, A survey based comparative study of spread of covid-19 in real time, Implementation of Android for Development of Food Recipe Application, Study of Web 3.0 for Development, Implementation of SAP for Automation of Master Data, Flood Estimation through Soft Computing: A Case Study of Cauvery River, India, Customize Model for Car Price Prediction: A Machine Learning Based Approach,
The BioVRPi project: a valuable and sustainable alternative for genomic analysis
Creators: name: Treccani, Mirko
name: Veschetti, Laura
name: Malerba, Giovanni
Publisher: name: F1000 Research Limited
Year: 2022

description: Since 2012, the Raspberry Pi Foundation has started developing pocket-sized and low-cost devices, originally meant to teach computer science in developing Countries. Its growing interest and constant improvement led Raspberry Pi devices to find different applications and to suit the needs of various research areas.
 In the previous years, different researchers already reported applications of Raspberry Pi devices in bioinformatics, such as basic training and proteomics. In the beginning of 2021, we gave birth to BioVRPi, a project which aims to develop and offer a low-cost and stable bioinformatic environment for students and researchers involved in the genomics and transcriptomics fields.
 We evaluated performances and software compatibilities of different scenarios, focusing on Genome-Wide Association Studies for complex traits in Homo sapiens, transcriptomic analyses on RNA-seq data from Strongyloides stercoralis samples and alignment of small organisms, such as SARS-CoV-2 (virus), Escherichia Coli (bacterium) and Caenorhabditis elegans (nematode).
 Results from both the bioinformatic and benchmarking analyses showed that Raspberry Pi devices are capable of accomplish different bioinformatic tasks in term of results and performances. Moreover, they proved to be a valuable low-cost and sustainable alternative, in accordance with the United Nation 2030 Agenda, to answer the needs and the challenges of the current socio-economic situation.
Charge density wave and superconductivity in the kagome metal CsV$_3$Sb$_5$ around a pressure-induced quantum critical point
Creators: name: Wang, Chongze
name: Liu, Shuyuan
name: Jeon, Hyunsoo
name: Jia, Yu
name: Cho, Jun-Hyung
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using first-principles density functional theory calculations, we investigate the pressure-induced quantum phase transition (QPT) from the charge density wave (CDW) to the pristine phase in the layered kagome metal CsV$_3$Sb$_5$ consisting of three-atom-thick Sb$-$V$_3$Sb$-$Sb and one-atom-thick Cs layers. The CDW structure having the formation of trimeric and hexameric V atoms with buckled Sb honeycomb layers features an increase in the lattice parameter along the $c$ axis, compared to its counterpart pristine structure having the ideal V$_3$Sb kagome and planar Sb honeycomb layers. Consequently, as pressure increases, the relatively smaller volume of the pristine phase contributes to reducing the enthalpy difference between the CDW and pristine phases, yielding a pressure-induced QPT at a critical pressure $P_c$ of ${\sim}$2 GPa. Furthermore, we find that (i) the superconducting transition temperature $T_c$ increases around $P_c$ due to a phonon softening associated with the periodic lattice distortion of V trimers and hexamers and that (ii) above $P_c$, optical phonon modes are hardened with increasing pressure, leading to monotonous decreases in the electron-phonon coupling constant and $T_c$. Our findings not only demonstrate that the uniaxial strain along the $c$ axis plays an important role in the QPT observed in CsV$_3$Sb$_5$, but also provide an explanation for the observed superconductivity around $P_c$ in terms of a phonon-mediated superconducting mechanism.
The Lyman-$α$ forest in optically-thin hydrodynamical simulations
Creators: name: Lukić, Zarija
name: Stark, Casey
name: Nugent, Peter
name: White, Martin
name: Meiksin, Avery
name: Almgren, Ann
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the statistics of the Lyman-$α$ forest in a flat LCDM cosmology with the N-body + Eulerian hydrodynamics code Nyx. We produce a suite of simulations, covering the observationally relevant redshift range $2 \leq z \leq 4$. We find that a grid resolution of 20 kpc/h is required to produce one percent convergence of Lyman-$α$ flux statistics, up to k = 10 h/Mpc. In addition to establishing resolution requirements, we study the effects of missing modes in these simulations, and find that box sizes of L > 40 Mpc/h are needed to suppress numerical errors to a sub-percent level. Our optically-thin simulations with the ionizing background prescription of Haardt & Madau (2012) reproduce an IGM equation of state with $T_0 \approx 10^4 K$ and $γ\approx 1.55$ at z=2, with a mean transmitted flux close to the observed values. When using the ionizing background prescription of Faucher-Giguere et al. (2009), the mean flux is 10-15 per cent below observed values at z=2, and a factor of 2 too small at z = 4. We show the effects of the common practice of rescaling optical depths to the observed mean flux and how it affects convergence rates. We also investigate the common practice of `splicing' results from a number of different simulations to estimate the 1D flux power spectrum and show it is accurate at the 10 percent level. Finally, we find that collisional heating of the gas from dark matter particles is negligible in modern cosmological simulations.
description: 28 pages, 31 figures; version as accepted for MNRAS publication on November 7, 2014
Checking Whether an Automaton Is Monotonic Is NP-complete
Creators: name: Szykuła, Marek
Publisher: name: arXiv
Year: 2014
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences

description: An automaton is monotonic if its states can be arranged in a linear order that is preserved by the action of every letter. We prove that the problem of deciding whether a given automaton is monotonic is NP-complete. The same result is obtained for oriented automata, whose states can be arranged in a cyclic order. Moreover, both problems remain hard under the restriction to binary input alphabets.
description: 13 pages, 4 figures. CIAA 2015. The final publication is available at http://link.springer.com/chapter/10.1007/978-3-319-22360-5_23
Entrepreneurial Capability And Engagement Of Persons With Disabilities Toward A Framework For Inclusive Entrepreneurship
Creators: name: Mendoza, Xavier Lawrence D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business

description: The study was designed to determine the entrepreneurial capability and engagement of persons with disabilities toward a framework for inclusive entrepreneurship. The researcher used descriptive and correlational approaches through purposive random sampling. The sample came from the City of General Trias and the Municipality of Rosario, registered under their respective Persons with Disabilities Affairs Offices (PDAO). The findings indicated that the respondents are from the working class, are primarily female, are mostly single, have college degrees, live in a medium-sized home, and earn the bare minimum. Furthermore, PWDs' perceived capability level in entrepreneurship was somehow capable, and the majority of engagement level responses were somehow engaged. Considerably, age and civil status have significant relationships with most of the variables under study. Finally, the perceived challenges of PWDs' respondents noted the following: lack of financial capacity, access to credit and other financial institutions, absence of business information, absence of access to data, lack of competent business skills, lack of family support, and lack of personal motivation. As a result, the author proposed a framework that emphasizes interaction and cooperation between national and local government units in the formulation of policies promoting inclusive entrepreneurship for people with disabilities.
Magnetic catalysis and axionic charge-density-wave in Weyl semimetals
Creators: name: Roy, Bitan
name: Sau, Jay D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Three-dimensional Weyl and Dirac semimetals can support a chiral-symmetry-breaking, fully gapped, charge-density-wave order even for sufficiently weak repulsive electron-electron interactions, when placed in strong magnetic fields. In the former systems, due to the natural momentum space separation of Weyl nodes the ordered phase lacks the translational symmetry and represents an axionic phase of matter, while that in a Dirac semimetal (neglecting the Zeeman coupling) is only a trivial insulator. We present the scaling of this spectral gap for a wide range of subcritical (weak) interactions as well as that of the diamagnetic susceptibility with the magnetic field. A similar mechanism for charge-density-wave ordering at weak coupling is shown to be operative in double and triple-Weyl semimetals, where the dispersion is linear (quadratic and cubic, respectively) for the z (planar) component(s) of the momentum. We here also address the competition between the charge-density-wave and a spin-density-wave orders, both of which breaks the chiral symmetry and leads to gapped spectrum, and show that at least in the weak coupling regime the former is energetically favored. The anomalous surface Hall conductivity, role of topological defects such as axion strings, existence of one-dimensional gapless dispersive modes along the core of such defects, and anomaly cancellation through the Callan-Harvey mechanism are discussed.
description: 9 Pages, 3 Figues: Published version, expanded discussion, new references
OPTICAL SOURCES
Creators: name: Nurullayev, Ye.Ye.
Publisher: name: Zenodo
Year: 2023

description: This thesis explores the pivotal role of semiconductor devices, including diode lasers and LEDs, in fiber optic communication. These devices, operating through direct modulation of current, serve as efficient and integral light sources. The study emphasizes the superiority of semiconductor lasers, particularly distributed feedback (DFB) lasers, for high-speed, long-distance communication due to their narrow spectral widths. Despite limitations, vertical cavity surface emitting lasers (VCSELs) show promise for integration, underscoring the ongoing evolution of optical communication technologies.
Weak-value amplification: state of play
Creators: name: Knee, George C.
name: Combes, Joshua
name: Ferrie, Christopher
name: Gauger, Erik M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Weak values arise in quantum theory when the result of a weak measurement is conditioned on a subsequent strong measurement. The majority of the trials are discarded, leaving only very few successful events. Intriguingly those can display a substantial signal amplification. This raises the question of whether weak values carry potential to improve the performance of quantum sensors, and indeed a number of impressive experimental results suggested this may be the case. By contrast, recent theoretical studies have found the opposite: using weak-values to obtain an amplification generally worsens metrological performance. This survey summarises the implications of those studies, which call for a reappraisal of weak values' utility and for further work to reconcile theory and experiment.
description: 7 pages, to appear in "Quantum Measurements and Quantum Metrology"
Derived equivalences for Rational Cherednik algebras
Creators: name: Losev, Ivan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 16E99, 16G99

description: Let W be a complex reflection group and H_c(W) the Rational Cherednik algebra for $W$ depending on a parameter c. One can consider the category O for H_c(W). We prove a conjecture of Rouquier that the categories O for H_c(W) and H_{c'}(W) are derived equivalent provided the parameters c,c' have integral difference. Two main ingredients of the proof are a connection between the Ringel duality and Harish-Chandra bimodules and an analog of a deformation technique developed by the author and Bezrukavnikov. We also show that some of the derived equivalences we construct are perverse.
description: 32 pages, preliminary version; v2 33 pages some proofs rewritten; v3 32 pages, proofs of the main results substantially simplified, other minor changes; v4 some proofs were modified, other minor changes
Contact process with simultaneous spatial and temporal disorder
Creators: name: Ye, Xuecheng
name: Vojta, Thomas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the absorbing-state phase transition in the one-dimensional contact process under the combined influence of spatial and temporal random disorders. We focus on situations in which the spatial and temporal disorders decouple. Couched in the language of epidemic spreading, this means that some spatial regions are, at all times, more favorable than others for infections, and some time periods are more favorable than others independent of spatial location. We employ a generalized Harris criterion to discuss the stability of the directed percolation universality class against such disorder. We then perform large-scale Monte Carlo simulations to analyze the critical behavior in detail. We also discuss how the Griffiths singularities that accompany the nonequilibrium phase transition are affected by the simultaneous presence of both disorders.
description: 14 pages, 14 figures included, final version as published
Corporations Having Agricultural Operations: A Preliminary Report
Creators: name: Scofield, William H.
name: Coffman, George W.
name: Scofield, William H.
name: Coffman, George W.
Publisher: name: Unknown
Year: 1968
Subjects: Crop Production/Industries
Farm Management
Livestock Production/Industries

description: Excerpts from the report Preface: In November 1967, Secretary Freeman directed the Economic Research Service to conduct a survey to determine the number, kinds, and general characteristics of corporations that were directly involved in the production of farm products. Concern had been expressed over the apparent increase in the number of nonfarm corporations reported to be buying land and initiating new farming enterprises. Few data were available by which to judge the importance of this trend or to evaluate the possible impact on market prices of farm products and on local business communities. This preliminary report summarizes the results of this inventory-type survey for 22 States. Similar data have been obtained for the remaining 26 conterminous States, and a complete report will be issued at a later date. The survey sought to identify every incorporated business that was directly engaged in the production of farm products and to obtain a few descriptive facts about each.