cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Numerical investigation of three-dimensional partial cavitation in a Venturi geometry
Creators: name: Gouin, Camille
name: Junqueira-Junior, Carlos
name: da Silva, Eric Goncalves
name: Robinet, Jean-Christophe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Sheet cavitation appears in many hydraulic applicationss and can lead to technical issues. Some fundamental outcomes such as the complex topology of 3-Dimensional cavitation pockets and their associated dynamics need to be carefully visited.In the present paper, the dynamics of partial cavitation developing in a 3-D Venturi geometry and the interaction with sidewalls are numerically investigated. The simulations are performed usinf a one-fluid compressible Reynolds-Averaged Navier-Stokes (RANS solver associated to a non-linear turbulence model and a void transport-equation model. A detailed analysis of this cavitating flow is carried out using innovative tools such as Spectral Proper Orthogonal Decompositions. Particular attenttion is paid in the study of 3-D effects by comparing numerical results obtained with sidewalls and periodic conditions. A three-dimensional dynamics of the sheet cavitation, unrelated to the presence of sidewalls, is identified and discussed.
SMOTE-ENC: A novel SMOTE-based method to generate synthetic data for nominal and continuous features
Creators: name: Mukherjee, Mimi
name: Khushi, Matloob
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Real world datasets are heavily skewed where some classes are significantly outnumbered by the other classes. In these situations, machine learning algorithms fail to achieve substantial efficacy while predicting these under-represented instances. To solve this problem, many variations of synthetic minority over-sampling methods (SMOTE) have been proposed to balance the dataset which deals with continuous features. However, for datasets with both nominal and continuous features, SMOTE-NC is the only SMOTE-based over-sampling technique to balance the data. In this paper, we present a novel minority over-sampling method, SMOTE-ENC (SMOTE - Encoded Nominal and Continuous), in which, nominal features are encoded as numeric values and the difference between two such numeric value reflects the amount of change of association with minority class. Our experiments show that the classification model using SMOTE-ENC method offers better prediction than model using SMOTE-NC when the dataset has a substantial number of nominal features and also when there is some association between the categorical features and the target class. Additionally, our proposed method addressed one of the major limitations of SMOTE-NC algorithm. SMOTE-NC can be applied only on mixed datasets that have features consisting of both continuous and nominal features and cannot function if all the features of the dataset are nominal. Our novel method has been generalized to be applied on both mixed datasets and on nominal only datasets. The code is available from mkhushi.github.io
ADMM-based full-waveform inversion for microseismic imaging
Creators: name: Aghamiry, Hossein S.
name: Gholami, Ali
name: Operto, Stéphane
name: Malcolm, Alison
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Full waveform inversion (FWI) is beginning to be used to characterize weak seismic events at different scales, an example of which is microseismic event (MSE) characterization. However, FWI with unknown sources is a severely underdetermined optimization problem, and hence requires strong prior information about the sources and/or the velocity model. The frequency-domain wavefield reconstruction inversion method (WRI) has shown promising results to mitigate the nonlinearity of the FWI objective function that is generated by cycle-skipping. WRI relies on the reconstruction of data-assimilated wavefields, which approach the true wavefields near the receivers, a helpful feature when the source is added as an additional optimization variable. We present an adaptation of a recently proposed version of WRI based on the alternating direction method of multipliers (ADMM) that first finds the location of the MSEs and then reconstructs the wavefields and the source signatures jointly. Finally, the subsurface model is updated to focus the MSEs at their true location. The method does not require prior knowledge of the number of MSEs. The inversion is stabilized by sparsifying regularizations separately tailored to the source location and velocity model subproblems. The method is tested on the Marmousi model using one MSE and two clusters of MSEs with two different initial velocity models, an accurate one and a rough one, as well as with added noise. In all cases, the method accurately locates the MSEs and recovers their source signatures.
Convection in a mushy-layer along a heated wall
Creators: name: Boury, Samuel
name: Meyer, Colin R.
name: Vasil, Geoffrey M.
name: Wells, Andrew J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Motivated by the mushy zones of sea ice, volcanoes, and icy moons of the outer solar system, we perform a theoretical and numerical study of boundary-layer convection along a vertical heated wall in a bounded ideal mushy region. The mush is comprised of a porous and reactive binary alloy with a mixture of saline liquid in a solid matrix, and is studied in the near-eutectic approximation. Here we demonstrate the existence of four regions and study their behavior asymptotically. Starting from the bottom of the wall, the four regions are (i) an isotropic corner region; (ii) a buoyancy dominated vertical boundary layer; (iii) an isotropic connection region; and (iv) a horizontal boundary layer at the top boundary with strong gradients of pressure and buoyancy. Scalings from numerical simulations are consistent with the theoretical predictions. Close to the heated wall, the convection in the mushy layer is similar to a rising buoyant plume abruptly stopped at the top, leading to increased pressure and temperature in the upper region, whose impact is discussed as an efficient melting mechanism.
Non extensive statistic of Tsallis in the heartbeat of healthy humans
Creators: name: Ritto, P. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: It is studied the MIT-BIH Normal Sinus Rhythm Database using a statistical technique of analysis, that is based on the Wavelet and Hilbert Transforms. With that technique, it was previously found, that there is a collective and intrinsic dynamical behavior up to a scale of 64 heartbeats. Now it is shown, that using the Biorthogonal wavelet bior3.1 such a behavior reaches the scale 1024. That result confirms, that the circulatory system is out of equilibrium. According to the Statistical Mechanics of Tsallis, and a recent interpretation of G. Wilk et al. respect to the non extensive parameter q, the healthy human being is characterized by q=1.70+/-0.01.
description: This article has been published in Spanish with minor changes in the text. The abstract shows now the right 'q'
SRS-SBS competition and nonlinear laser energy absorption in a high temperature plasma
Creators: name: Shekhanov, S. A.
name: Tikhonchuk, V. T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Stimulated Raman and Brillouin scattering of laser radiation in a plasma corona are outstanding issues for the inertial confinement fusion. Stimulated Raman scattering may produce absorption of a significant fraction of laser energy near the plasma quarter critical density associated with plasma cavitation and generation of hot electrons. By contrast, stimulated Brillouin scattering operates in a lower density plasma and prevents the laser light access to the absorption region. In the present paper, we report the results of analysis of competition of these two parametric instabilities with a series of one-dimensional kinetic simulations of laser-plasma interactions. By controlling the Brillouin backscattering through variation such plasma parameters as ion acoustic wave damping, divergence of the plasma expansion velocity or the laser bandwidth, we demonstrate the possibility of controlling the level of nonlinear laser absorption and scattering in a hot, weakly collisional plasma.
description: 24 pages
Investigation of Immobilization Process of Screen Printed Carbon Electrode for An Advanced Biosensor: A Detailed Characterization
Creators: name: KOÇ, Yücel
name: Uğur MORALI
name: EROL, Salim
name: AVCI, Hüseyin
Publisher: name: Zenodo
Year: 2019
Subjects: Biosensor, Screen-Printed Carbon Electrode, Immobilization, Electrochemical Impedance Spectroscopy, Cyclic Voltammetry

description: Recently, electrochemical methods are of growing interest. Electrochemical methods used in the development of sensors have many advantages such as high sensitivity, short response time, and low cost. Screen-printed electrodes (SPEs) are one of the electrochemical devices utilized as sensors that are used in a wide range of applications from health to food. In this study, the surface functionalization of commercially available screen-printed carbon electrodes (SPCE) were carried out, and the layers formed on SPCE surface were examined by electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) method. Textural and micro-structural properties of SPCE were investigated by scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) spectroscopy. Bonding of a self-assembling monolayer (SAM), an antibody, and an antigen on SPCE were also successfully achieved. After each layer formation, EIS tests were performed using the redox probe potassium ferricyanide (K3Fe(CN)6) at the both optimum concentration and parameters. The impedance data were presented in the Nyquist curves. The Nyquist plot provides charge transfer resistance (Rct) when employed along with the equivalent circuit model. The results showed that the Rct values increased with the formation of additional layers. The increasing resistance showed a successful achievement of the immobilization process.
Recent Heavy Flavor Results Utilizing the FVTX in PHENIX at RHIC
Creators: name: Li, Xuan
Publisher: name: Zenodo
Year: 2021
Subjects: sqm16
phenix
heavy flavor
fvtx
J/Ψ
p+p
p+al
p+au
cu+au
forward-rapidity
cnm effects
b-meson
dca
raa

description: Talk presented at the Strangeness in Quark Matter 2016 conference
S-brane solutions with orthogonal intersection rules
Creators: name: Ivashchuk, V. D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A family of generalized composite intersecting S-brane solutions with orthogonal intersection rules is described.
description: 10 pages, Latex, invited paper to a fest of A. Garsia; typo in eq. (3.4) is eliminated
The structural role of the Workers' Compensation Board in the industrial economy of British Columbia
Creators: name: Moeti, Michael
Publisher: name: University of British Columbia
Year: 2010

description: This thesis outlines the structural problems that, affect the operation of the Workers' Compensation Board within the industrial economy of B.C. The study confines itself to the years between 1972 and 1937, a period in which workers' compensation in B.C. underwent political and economic transformations under the governmental aegis of the New Democratic Party government and then the Social Credit Party. In order to understand the ostensibly contradictory functions of the WCB, a partially autonomous component of the state, liberal-pluralist and Neo-Marxist models are compared and contrasted. The thesis concludes that the UCB serves two principal functions: capital accumulation and legitimation of the status quo. Historical and contemporary evidence shows that the WCB continues to serve the interests of employers at the expense of workers. Low government expenditure on health and safety safeguards, delaying of workers' claims, weak penalties against employers violating safety legislation, the chronic scarcity of safety inspectors, and the habitual undercompensation of claims, are clear indications that the WCB puts costs ahead of workers' health. The WCB's rejection of radical solutions to the problems, solutions likely to offend employers, is further evidence of the pro-capital bias of the WCB. Thus the study rejects the liberal-pluralist interpretive framework and reaffirms the structuralist, interpretation as an appropriate schema for understanding how the WCB operates within a capitalist economy. Alternatives to the WCB policy such as a universal disability plan, are explored. The chief method of investigation used in this research study was to interview workers and their representatives, lawyers specialising in the WCB, and WCB staff. Available WCB data and various evaluative reports on the WCB were important secondary sources of information.
Molecular coupling of light with plasmonic waveguides
Creators: name: Kuzyk, Anton
name: Pettersson, Mika
name: Toppari, J. Jussi
name: Hakala, Tommi K.
name: Tikkanen, Hanna
name: Kunttu, Henrik
name: Torma, Paivi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We use molecules to couple light into and out of microscale plasmonic waveguides. Energy transfer, mediated by surface plasmons, from donor molecules to acceptor molecules over ten micrometer distances is demonstrated. Also surface plasmon coupled emission from the donor molecules is observed at similar distances away from the excitation spot. The lithographic fabrication method we use for positioning the dye molecules allows scaling to nanometer dimensions. The use of molecules as couplers between far-field and near-field light offers the advantages that no special excitation geometry is needed, any light source can be used to excite plasmons and the excitation can be localized below the diffraction limit. Moreover, the use of molecules has the potential for integration with molecular electronics and for the use of molecular self-assembly in fabrication. Our results constitute a proof-of-principle demonstration of a plasmonic waveguide where signal in- and outcoupling is done by molecules.
description: 9 pages, 5 figures
title: How preferences shape the welfare and employment effects of trade
Creators: name: Egger, Hartmut
name: Habermeyer, Simone
Publisher: name: University of Bayreuth
Year: 2021
Subjects: subject: Preferences
subject: Search frictions
subject: Wage bargaining
subject: Trade structure
subject: Welfare and employment effects
subject: 330

description: We set up a trade model with two countries, two sectors, and one production factor, which features a home-market effect due to the existence of trade costs. We consider search frictions and firm-level wage bargaining in the sector producing differentiated goods and a perfectly competitive labor market in the sector producing a homogeneous good. Consumers have price-independent generalized-linear preferences over the two types of goods, covering homothetic and quasi-homothetic preferences as two limiting cases. Due to the specific functional forms of indirect utility, homothetic preferences lead to risk aversion, while quasi-homothetic preferences lead to risk neutrality in our model. We show that trade between two countries that differ in their population size leads to an expansion of the differentiated goods sector and a contraction of the homogeneous good sector in the larger economy. This induces the larger country to net-export differentiated goods at the cost of a higher economy-wide rate of unemployment in the open economy (with the effects reversed for the smaller country). The welfare effects of trade depend on the preference structure. Looking at the two limiting cases, we show that the larger country is likely to benefit from trade if preferences are homothetic, whereas losses from trade are possible if preferences are quasi-homothetic. The opposite is true in the smaller country. This reveals an important role of preferences for the welfare effects of trade in the presence of labor market imperfection, a result we further elaborate on by considering more general preferences as well as differences of countries in their per-capita income levels.
title: Limits and Possibilities of Mixing Policies: Lessons from and for Latin American cities (Policy Brief,  n°25)
Creators: name: Alvarez Rivadulla, Maria Jose
Publisher: name: Sciences Po - LIEPP
Year: 2016
Subjects: subject: FOS: Social sciences
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description: Plusieurs villes d’Amérique latine essayent de surmonter des décennies de ségrégation (d'état et de marché), en mettant en place des politiques urbaines de mixité qui consistent à localiser des logements sociaux dans des quartiers aisés plutôt que dans les périphéries pauvres où ils étaient traditionnellement construits. Ce changement découle de la prise de conscience des effets négatifs que peut entrainer la vie dans des quartiers défavorisés, en général, sans aucune mixité sociale, qui ont été notamment documentés en Amérique latine. Bogotá en est un exemple. Les villes européennes et américaines ont, quant à elles, expérimenté la mise en place des diverses politiques de revenus mixtes depuis les années 1990 afin d’enrayer la situation. Que pouvonsnous apprendre de leur expérience? Et, à leur tour, comment les villes latinoaméricaines peuventelles contribuer à la littérature sur la mixité urbaine et l'intégration ?
description: Some Latin American cities are trying to overcome decades of market and state led segregation through mixing urban policies, which consist of locating social housing in better off neighborhoods rather than in the poor peripheries where it was traditionally built. This change comes from the realization of the negative effects of living in segregated public housing and homogeneously poor neighborhoods in general which have been documented in Latin America as well as elsewhere. Bogotá is one of these cases. European and American cities have experimented with different variations of mixed income policies since the 1990s. What can we learn from their experience? And, in turn, what can Latin American cities contribute to the literature on urban mixing and integration?
Non-atomic Games for Multi-User Systems
Creators: name: Bonneau, Nicolas
name: Debbah, Mérouane
name: Altman, Eitan
name: Hjørungnes, Are
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: In this contribution, the performance of a multi-user system is analyzed in the context of frequency selective fading channels. Using game theoretic tools, a useful framework is provided in order to determine the optimal power allocation when users know only their own channel (while perfect channel state information is assumed at the base station). We consider the realistic case of frequency selective channels for uplink CDMA. This scenario illustrates the case of decentralized schemes, where limited information on the network is available at the terminal. Various receivers are considered, namely the Matched filter, the MMSE filter and the optimum filter. The goal of this paper is to derive simple expressions for the non-cooperative Nash equilibrium as the number of mobiles becomes large and the spreading length increases. To that end two asymptotic methodologies are combined. The first is asymptotic random matrix theory which allows us to obtain explicit expressions of the impact of all other mobiles on any given tagged mobile. The second is the theory of non-atomic games which computes good approximations of the Nash equilibrium as the number of mobiles grows.
description: 17 pages, 4 figures, submitted to IEEE JSAC Special Issue on ``Game Theory in Communication Systems''
Single-Hole Pump in Germanium
Creators: name: Rossi, A.
name: Hendrickx, N. W.
name: Sammak, A.
name: Veldhorst, M.
name: Scappucci, G.
name: Kataoka, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Single-charge pumps are the main candidates for quantum-based standards of the unit ampere because they can generate accurate and quantized electric currents. In order to approach the metrological requirements in terms of both accuracy and speed of operation, in the past decade there has been a focus on semiconductor-based devices. The use of a variety of semiconductor materials enables the universality of charge pump devices to be tested, a highly desirable demonstration for metrology, with GaAs and Si pumps at the forefront of these tests. Here, we show that pumping can be achieved in a yet unexplored semiconductor, i.e. germanium. We realise a single-hole pump with a tunable-barrier quantum dot electrostatically defined at a Ge/SiGe heterostructure interface. We observe quantized current plateaux by driving the system with a single sinusoidal drive up to a frequency of 100 MHz. The operation of the prototype was affected by accidental formation of multiple dots, probably due to disorder potential, and random charge fluctuations. We suggest straightforward refinements of the fabrication process to improve pump characteristics in future experiments.
description: 7 pages, 4 figures
title: Arranging Home Modifications, Ed. 2
Creators: name: Home Modification Information Clearinghouse,
Publisher: name: Home Modification Information Clearinghouse
Year: 2019

description: Older people and people with disability might have limited mobility or ability to perform daily tasks in their home. Home modifications are changes to the home that enable people to be independent and avoid injury. Modifications can be privately funded or subsidised, depending on a person's disability. This publication aims to assist people to arrange modifications that will enable them to be more safe and comfortable in their home. The steps to decide which home modifications are the best for your home as well as ways to apply for funding are analysed.
description: Introduction What is a home modification? What home modifications will help me to be more independent? Who do I contact if I want to modify my home? How do I arrange an Occupational Therapist assessment? The assessment process Selecting your home modifications Undertaking your own home modifications License checks Quotes and contracts Planning and permissions Equipment (assistive technology) to help at home What if I need an interpreter?
Restricted infinitesimal deformations of restricted simple Lie algebras
Creators: name: Viviani, Filippo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17B50, 17B20, 17B56, 14L15, 17B45

description: We compute the restricted infinitesimal deformations of the restricted simple Lie algebras over an algebraically closed field of characteristic different from 2 and 3.
description: 15 pages; final version, to appear in Journal of Algebra and Its Applications
title: Is Eastern Europe Uniformly Anti-Immigrant? Not so fast : Understanding immigration policy positions and policy change in Eastern Europe (Policy Brief, n°24)
Creators: name: Jan, Rovny
Publisher: name: Sciences Po - LIEPP
Year: 2016
Subjects: subject: FOS: Social sciences
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description:  As the European Union struggled to address an unprecedented influx of refugees in 2015, four Eastern European governments rejected a proposal for European Union refugee quotas. Within each country, however, there are different views on the migrant crisis and immigration in general that are overshadowed by this uniform policy response. My research on the political divisions in each country explains that these differences are related to how political camps developed after communism. Through an analysis of the causes of immigration salience and the reasons behind immigration and integration policy positions of various parties in Eastern European countries, this research finds that which party – left or right – adopts more socially liberal policy positions depends on its relationships to communist federalism and the most politically notable ethnic group in the country. My work finds three distinct political patterns in Eastern Europe.
Wave manipulation using a bistable chain with reversible impurities
Creators: name: Yasuda, Hiromi
name: Charalampidis, Efstathios G.
name: Purohit, Prashant K.
name: Kevrekidis, Panayotis G.
name: Raney, Jordan R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We systematically study linear and nonlinear wave propagation in a chain composed of piecewise-linear bistable springs. Such bistable systems are ideal testbeds for supporting nonlinear wave dynamical features including transition and (supersonic) solitary waves. We show that bistable chains can support the propagation of subsonic wavepackets which in turn can be trapped by a low-energy phase to induce energy localization. The spatial distribution of these energy foci strongly affects the propagation of linear waves, typically causing scattering, but, in special cases, leading to a reflectionless mode analogous to the Ramsauer-Townsend (RT) effect. Further, we show that the propagation of nonlinear waves can spontaneously generate or remove additional foci, which act as effective "impurities". This behavior serves as a novel mechanism for reversibly programming the dynamic response of bistable chains.
Learning Second Languages with ADHD: The Role of Memory Systems
Creators: name: Ridchenko, Maryna
Publisher: name: University of Illinois at Chicago
Year: 2024

description: Previous research has shown that individual differences in long-term memory systems (e.g., Morgan-Short et al., 2022) and working memory (e.g., Linck et al., 2014) can influence second language (L2) learning in adults with neurotypical cognition. However, it remains unknown what role memory systems play in L2 learning in adults with ADHD. This study examined this question by asking participants (N = 116) to complete a) L2 training and testing with an artificial language with complex analogical and simple affixation rules; b) cognitive measures of working, declarative, and procedural memory; c) ADHD and depression questionnaires. We predicted that adults with ADHD would not have a statistically different performance on the L2 learning task than the neurotypical adults. We also expected that memory systems might play a different role in L2 learning based on the participants’ ADHD severity symptomatology (as measured by BAARS-IV). The results of our study supported our first hypothesis — individuals with ADHD did not perform differently than the neurotypical controls; but did not support the second one —memory systems that are associated with L2 learning are not influenced by the ADHD symptomatology. Overall, we also found a facilitative role of declarative memory on learning of the complex analogical rules and facilitative role of working memory on learning of the simple affixed rules. Such results play an important role in furthering both the scientific and pedagogical understanding of L2 learning with ADHD and L2 learning in general.
Scalable and High-Fidelity Quantum Random Access Memory in Spin-Photon Networks
Creators: name: Chen, Kevin C.
name: Dai, Wenhan
name: Errando-Herranz, Carlos
name: Lloyd, Seth
name: Englund, Dirk
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A quantum random access memory (qRAM) is considered an essential computing unit to enable polynomial speedups in quantum information processing. Proposed implementations include using neutral atoms and superconducting circuits to construct a binary tree, but these systems still require demonstrations of the elementary components. Here, we propose a photonic integrated circuit (PIC) architecture integrated with solid-state memories as a viable platform for constructing a qRAM. We also present an alternative scheme based on quantum teleportation and extend it to the context of quantum networks. Both implementations rely on already demonstrated components: electro-optic modulators, a Mach-Zehnder interferometer (MZI) network, and nanocavities coupled to artificial atoms for spin-based memory writing and retrieval. Our approaches furthermore benefit from built-in error-detection based on photon heralding. Detailed theoretical analysis of the qRAM efficiency and query fidelity shows that our proposal presents viable near-term designs for a general qRAM.
Q^2-evolution of nucleon-to-resonance transition form factors in a QCD-inspired vector-meson-dominance model
Creators: name: Vereshkov, G.
name: Volchanskiy, N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We adopt the vector-meson-dominance approach to investigate Q^2-evolution of N-R transition form factors (N denotes nucleon and R an excited resonance) in the first and second resonance regions. The developed model is based upon conventional NRγ-interaction Lagrangians, introducing three form factors for spin-3/2 resonances and two form factors for spin-1/2 nucleon excitations. Lagrangian form factors are expressed as dispersionlike expansions with four or five poles corresponding to the lowest excitations of the mesons ρ(770) and ω(782). Correct high-Q^2 form factor behavior predicted by perturbative QCD is due to phenomenological logarithmic renormalization of electromagnetic coupling constants and linear superconvergence relations between the parameters of the meson spectrum. The model is found to be in good agreement with all the experimental data on Q^2-dependence of the transitions N-Δ(1232), N-N(1440), N-N(1520), N-N(1535). We present fit results and model predictions for high-energy experiments proposed by JLab. Besides, we make special emphasis on the transition to perturbative domain of N-Δ(1232) form factors.
description: 22 pages, 22 PS figures, REVTeX 4; v2: +3 refs, minor editorial changes
The Imperial Colonisation Board : British administration on the Canadian prairies, 1888-1909
Creators: name: Norton, Wayne R.
Publisher: name: University of British Columbia
Year: 2010

description: For twenty years after 1888, the British Government conducted an experiment in colonisation on the Canadian prairies. Hoping to avoid a radical redistribution of land to alleviate distress and disorder in Scotland's Western Islands, the Salisbury Government attempted an emigrationist policy. In 1888 it authorised the expenditure of public funds to establish colonies of Highlanders in Manitoba and Assiniboia. Adverse economic and climatic conditions combined with inadequate planning to severely hamper the progress of the settlements. Problems associated with administration from London compounded existing difficulties. By 1893, a Liberal administration less inclined to favour state-aided emigration abandoned all commitments to such schemes on the basis of the experience of the struggling Highland settlements. The Canadian Government was unable to adopt a consistent policy toward the British scheme. The Department of the Interior was frequently at variance with the Office of the Canadian High Commissioner in London. The settlements received much publicity and required much administrative attention before the British Government, with financial integrity, was able to conclude the settlement scheme in 1908. It is argued that the experience of the Canadian settlements played a far larger role in determining British policy toward state-aided colonisation than has previously been acknowledged. It is maintained that the publicised difficulties of the settlements contributed to the Canadian perception that British agriculturalists made unsatisfactory settlers and to the subsequent policy preference for continental European emigrants. It is suggested that the episode stands in sharp contrast to the orthodox view of the Scottish experience in Canadian historical writing
The MSSM with heavy scalars
Creators: name: Bernal, Nicolas
name: Djouadi, Abdelhak
name: Slavich, Pietro
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We perform a comprehensive analysis of the Minimal Supersymmetric Standard Model (MSSM) in the scenario where the scalar partners of the fermions and the Higgs particles (except for the Standard-Model-like one) are assumed to be very heavy and are removed from the low-energy spectrum. We first summarize our determination of the mass spectrum, in which we include the one-loop radiative corrections and resum to all orders the leading logarithms of the large scalar masses, and describe the implementation of these features in the FORTRAN code SuSpect which calculates the masses and couplings of the MSSM particles. We then study in detail the phenomenology of the model in scenarios where the gaugino mass parameters are non-universal at the GUT scale, which leads to very interesting features that are not present in the widely studied case of universal gaugino mass parameters. We discuss the constraints from collider searches and high-precision measurements, the cosmological constraints on the relic abundance of the neutralino candidate for the Dark Matter in the Universe - where new and interesting channels for neutralino annihilation appear - and the gluino lifetime. We then analyze, in the case of non-universal gaugino masses, the decays of the Higgs boson (in particular decays into and contributions of SUSY particles), of charginos and neutralinos (in particular decays into Higgs bosons and photons) and of gluinos, and highlight the differences from the case of universal gaugino masses.
description: 51 pages, 18 figures. v2: references and MSbar-DRbar translation formulae added; version published in JHEP. v3: footnote on MSbar-DRbar conversion added in the appendix
NaCl-assisted CVD growth of wafer scale high quality trilayer MoS$_2$ and the role of concentration boundary layer
Creators: name: Singh, Aditya
name: Sharma, Madan
name: Singh, Rajendra
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Direct growth of wafer scale high quality 2D layered materials (2DLMs) on SiO$_2$/Si substrate is still a challenge. The chemical vapor deposition (CVD) technique has played a significant role in achieving a large area continuous film of 2DLMs. CVD growth requires the optimization of many growth parameters such as temperature, amount of precursors, pressure, carrier gas flow and distance between the reactants. However, the role of boundary layer of reactants concentration has not been explored yet. The amount of precursors which leads to the formation of reactants concentration boundary layer has a significant role in controlling the thickness of growing material. Here, we report the role of concentration boundary layer to achieve wafer-scale MoS$_2$ in NaCl-assisted CVD growth at low temperature. Control of boundary layer thickness has led to the synthesis monolayer, bilayer, trilayer, and bulk MoS$_2$ film and flakes in our single-zone CVD at atmospheric pressure. Most importantly, we have synthesized 7 $\times$ 2.5 cm$^2$ area continuous, high quality trilayer MoS$_2$ film with good repeatability. We believe that our approach may lead to synthesize other wafer-scale 2DLMs that will pave the way for nano- and optoelectronics.
Distribution amplitudes of light diquarks
Creators: name: Lu, Ya
name: Binosi, Daniele
name: Ding, Minghui
name: Roberts, Craig D.
name: Xing, Hui-Yu
name: Xu, Chang
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Accumulating evidence indicates that soft quark+quark (diquark) correlations play an important role in the structure and interactions of hadrons constituted from three or more valence-quarks; so, it is worth developing insights into diquark structure. Using a leading-order truncation of those equations needed to solve continuum two-valence-body bound-state problems, the leading-twist two-parton distribution amplitudes (DAs) of light-quark scalar and pseudovector diquarks are calculated. The diquark DAs are narrower and taller than the asymptotic profile that characterises mesons. Consequently, the valence quasiparticles in a diquark are less likely to carry a large light-front fraction of the system's total momentum than those in a meson. These features may both influence the form of baryon DAs and be transmitted to diquark distribution functions (DFs), in which case their impact will be felt, e.g. in the proton's $u$ and $d$ valence-quark DFs.
description: 8 pages, 2 figures, 1 table. Accepted for publication in Eur. Phys. J. A (Lett)
The syllable structure of Japanese
Creators: name: Paradis, Johanne Catherine
Publisher: name: University of British Columbia
Year: 2010

description: The question of how to represent prosodic structure is of current theoretical interest in three dimensional phonology. Two current theories/models of representation are the onset/rime model (Kaye and Lowenstamm 1982, Kaye Lowenstamm and Vergnaud 1987 and Levin 1985) and the mora model (Hyman 1985, McCarthy and Prince 1986 and Hayes 1988). This thesis consists of a detailed investigation of the descriptive adequacy of these two theories for the Japanese language. Japanese can be considered an archetypal mora language since in the indigenous linguistic tradition it is analysed into moras. The version of each model which I am adopting is explicitly stated in a set of universal syllabification rules. This syllabification algorithm is compatible with the following assumptions: (1) a. No predictable prosodic structure is present in the underlying representation. The distribution of glides in most cases is predictable. b. Prosodic structure is built by rule and is erected around a syllabic peak which is determined by the relative sonority of segments and not by a feature [syllabic]. Furthermore, the version of the onset/rime model I propose is a paramaterized model where the unmarked setting does not include a nucleus constituent. This onset/rime model is designed to account for weight distinctions as well as the mora theory. Sample structures from both theories are given below. (2) [Diagram Omitted] A syllabification algorithm for Japanese is adapted from the general algorithm and fitted into a model of the lexical phonology of Japanese. It is shown that Japanese prosodic structure can be generated by rule, in either model, with no underlying distinctions between glides and high vowels, and with no feature [syllabic]. Therefore, it is concluded that both the onset/rime model and the mora model are adequate for describing the Japanese language. This conclusion crucially depends on the parameterization within the onset/rime model. Because Japanese is not the only language which employs the weight distinctions a Type I model represents, the parameterization is necessary for the onset/rime model to remain equal in descriptive power with the mora model.
Scrambling with conservation law
Creators: name: Cheng, Gong
name: Swingle, Brian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this article we discuss the impact of conservation laws, specifically $U(1)$ charge conservation and energy conservation, on scrambling dynamics, especially on the approach to the late time fully scrambled state. As a model, we consider a $d+1$ dimensional ($d\geq 2$) holographic conformal field theory with Einstein gravity dual. Using the holographic dictionary, we calculate out-of-time-order-correlators (OTOCs) that involve the conserved $U(1)$ current operator or energy-momentum tensor. We show that these OTOCs approach their late time value as a power law in time, with a universal exponent $\frac{d}{2}$. We also generalize the result to compute OTOCs between general operators which have overlap with the conserved charges.
description: 24 pages, 5 figures
Thermodynamics of theories with sixteen supercharges in non-trivial vacua
Creators: name: Grignani, Gianluca
name: Griguolo, Luca
name: Mori, Nicola
name: Seminara, Domenico
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the thermodynamics of maximally supersymmetric U(N) Yang-Mills theory on $\mathds{R}\times S^2$ at large $N$. The model arises as a consistent truncation of ${\cal N}=4$ super Yang-Mills on $\mathds{R}\times S^3$ and as the continuum limit of the plane-wave matrix model expanded around the $N$ spherical membrane vacuum. The theory has an infinite number of classical BPS vacua, labeled by a set of monopole numbers, described by dual supergravity solutions. We first derive the Lagrangian and its supersymmetry transformations as a deformation of the usual dimensional reduction of ${\cal N}=1$ gauge theory in ten dimensions. Then we compute the partition function in the zero 't Hooft coupling limit in different monopole backgrounds and with chemical potentials for the $R$-charges. In the trivial vacuum we observe a first-order Hagedorn transition separating a phase in which the Polyakov loop has vanishing expectation value from a regime in which this order parameter is non-zero, in analogy with the four-dimensional case. The picture changes in the monopole vacua due to the structure of the fermionic effective action. Depending on the regularization procedure used in the path integral, we obtain two completely different behaviors, triggered by the absence or the appearance of a Chern-Simons term. In the first case we still observe a first-order phase transition, with Hagedorn temperature depending on the monopole charges. In the latter the large $N$ behavior is obtained by solving a unitary multi-matrix model with a peculiar logarithmic potential, the system does not present a phase transition and it always appears in a ``deconfined'' phase.
description: 66 pages, 7 figure eps, References added and minor changes
Dynamics of a randomly kicked particle
Creators: name: Das, Santanu
name: Kundu, Anupam
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Levy walk (LW) process has been used as a simple model for describing anomalous diffusion in which the mean squared displacement of the walker grows non-linearly with time in contrast to the diffusive motion described by simple random walks or Brownian motion. In this paper we study a simple extension of the LW model in one dimension by introducing correlation among the velocities of the walker in different (flight) steps. Such correlation is absent in the LW model. The correlations are introduced by making the velocity at a step dependent on the velocity at the previous step in addition to the usual random noise ('kick') that the particle gets at random time intervals from the surrounding medium as in the LW model. Consequently the dynamics of the position becomes non-Markovian. We study the statistical properties of velocity and position of the walker at time t, both analytically and numerically. We show how different choices of the distribution of the random time intervals and the degree of correlation, controlled by a parameter r, affect the late time behaviour of these quantities.
description: 55 pages, 17 figures
title: Налоги и налогообложение: контролируемые иностранные компании
Creators: name: ELS IPR BOOKS
Publisher: name: Международный банковский институт имени Анатолия Собчака
Year: 2019

description: В учебном пособии исследуются современные проблемы налогообложения контролируемых иностранных компаний, обусловленные современным состоянием налоговой системы Российской Федерации и геополитической ситуацией в мире. В издании раскрываются теоретические аспекты налогообложения КИК как в России, так и за ее пределами. Детально рассмотрены вопросы развития законодательства о КИК, организации налоговой системы государства, особенности налогообложения КИК. Самостоятельной работе студентов посвящен отдельный блок, в котором представлены вопросы для текущей и итоговой аттестации, темы эссе и рефератов, примеры тестовых вопросов и практические ситуации. Учебное пособие предназначено для студентов, обучающимся по направлениям подготовки «Экономика», «Менеджмент», магистрантам, преподавателям, научным и практическим работникам.
Metapelma Westwood
Creators: name: Gibson, Gary
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Eupelmidae
Metapelma

description: Metapelma Westwood Metapelma Westwood, 1835: 69. Type species: M. spectabile Westwood. By monotypy. Halidea Förster, 1856: 31. Type species: H. nobilis Förster. Subsequent designation by Bouček (1988b: 547) (see Gibson 1989: 82); synonymy by Ashmead (1896: 5). Halidayella Dalla Torre, 1897: 281. Unjustified emendation of Halidea Förster.
description: Published as part of Gibson, Gary, 2009, Description of three new genera and four new species of Neanastatinae (Hymenoptera, Eupelmidae) from Baltic amber, with discussion of their relationships to extant taxa, pp. 175-214 in ZooKeys 20 (20) on page 187, DOI: 10.3897/zookeys.20.161, http://zenodo.org/record/576512
description: {"references": ["Westwood, JO (1835) Characters of new genera and species of hymenopterous insects. Proceedings of the Zoological Society of London 3: 51 - 54, 68 - 72.", "Forster, A (1856) Hymenopterologische Studien. II. Heft. Chalcidiae und Proctotrupii. Aachen, 152 pp.", "Boucek, Z (1988 b) Australasian Chalcidoidea (Hymenoptera). A Biosystematic Revision of Genera of Fourteen Families, with a Reclassification of Species. CAB International Institute of Entomology, The Cambrian News Ltd., Aberystwyth, 832 pp.", "Gibson, GAP (1989) Phylogeny and classification of Eupelmidae, with revision of the world genera of Calosotinae and Metapelmatinae (Hymenoptera: Chalcidoidea). Memoirs of the Entomological Society of Canada 149: 1 - 121.", "Ashmead, WH (1896) On the genera of Eupelminae. Proceedings of the Entomological Society of Washington 4: 4 - 20.", "Dalla Torre, KW von (1897) Zur Nomenclatur der Chalcididen-Genera. Wiener Entomologische Zeitung 16: 83 - 88."]}
Particle Motion Around Tachyon Monopole
Creators: name: Kalam, M.
name: Rahaman, F.
name: Mondal, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recently, Li and Liu have studied global monoole of tachyon in a four dimensional static space-time. We analyze the motion of massless and massive particles around tachyon monopole. Interestingly, for the bending of light rays due to tachyon monopole instead of getting angle of deficit we find angle of surplus. Also we find that the tachyon monopole exerts an attractive gravitational force towards matter.
description: 14 pages, 7 figures