cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Optimal Resource Allocation in Random Networks with Transportation Bandwidths
Creators: name: Yeung, C. H.
name: Wong, K. Y. Michael
Publisher: name: arXiv
Year: 2008
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We apply statistical physics to study the task of resource allocation in random sparse networks with limited bandwidths for the transportation of resources along the links. Useful algorithms are obtained from recursive relations. Bottlenecks emerge when the bandwidths are small, causing an increase in the fraction of idle links. For a given total bandwidth per node, the efficiency of allocation increases with the network connectivity. In the high connectivity limit, we find a phase transition at a critical bandwidth, above which clusters of balanced nodes appear, characterised by a profile of homogenized resource allocation similar to the Maxwell's construction.
description: 28 pages, 11 figures
A non-linear dynamic finite element analysis
Creators: name: Quong, Wayne
Publisher: name: University of British Columbia
Year: 2010

description: A two-dimensional finite element method of analysis for predicting the stress and permanent displacements of earth structures to seismic loading is presented. The inelastic behavior of the soil is modelled by an incremental linear approach in which the tangent shear modulus is varied with the level of both the shear strain and the mean normal stress. The2 shear modulus strain dependency is based on hyperbolic relationships governing initial loading and unloading behavior, leading to a hysteretic type energy dissipation. The tangent bulk modulus is varied with the level of the mean normal stress only, and hysteretic effects are not considered. The incremental linear equations of motion of the structure are solved using the Newmark step-by-step integration procedure in the time domain allowing the stresses and displacement to be computed. After each time step the tangent shear and bulk modulus are re-evaluated. Hysteretic damping as a result of the hyperbolic shear stress-strain law is inherent in the model. Viscous damping may also be included. The analysis is applied to a number of dams and slopes and the earthquake induced displacements are compared with those predicted by a simpler Newmark single degree of freedom rigid plastic analysis. As well, a comparison is made with Makdisi's prediction of deformation of embankments. For a clay slope structure, the overall displacements are of similar order. For a clay dam struture the non-linear finite element results indicate that the Newmark type methods are overly conservative. The more rigorous multi-degree of freedom analysis allows the distribution of displacements within and on the surface of the embankment to be obtained.
ENHANCING EMPLOYEE SATISFACTION AND ENGAGEMENT TO BOOST PRODUCTIVITY: THE ROLE OF LEADERSHIP, CULTURE, AND RECOGNITION PROGRAMS
Creators: name: Mbonigaba Celestin*, M. Vasuki**, S. Sujatha*** & A. Dinesh Kumar****
Publisher: name: Zenodo
Year: 2024

description: The research on Employee Engagement and its Impact on Business Performance explores how employee satisfaction and engagement drive organizational success. The objective is to assess the correlation between employee engagement and business performance, specifically profitability, productivity, and retention rates. A mixed-methods approach was used, incorporating quantitative surveys and qualitative interviews with employees and managers. Results show that companies with highly engaged employees saw a 21% increase in profitability, a 17% boost in productivity, and a 59% reduction in voluntary turnover. The study concludes that leadership, recognition programs, and work-life balance are pivotal to maintaining high engagement levels, which significantly improves business outcomes.
title: Celibate Women, the Construction of Identity, Karama (Dignity), and the “Arab Spring”
Creators: name: Labidi, Lilia
Publisher: name: Humboldt-Universität zu Berlin
Year: 2017
Subjects: subject: “Arab Spring”
subject: celibate women
subject: Diskurs
subject: Frauenrechte
subject: Nahdha
subject: rituals
subject: Tunisia
subject: ddc:303

description: Studies of the “Arab Spring” have tended to focus on the economic and political needs of youth, but have not addressed socio-psychological needs such as an unfulfilled desire for marriage and its social consequences. This article discusses the case of celibate women in Tunisia who, because of the high rate of youth unemployment and its social consequences, find it difficult to accomplish the rites of passage that would take them from childhood to adulthood and allow full integration into the community. In order to gain control over the self in a social context that was dominated by a dictatorial state, they have chosen a form of asceticism, wearing the hijab, reading the Qur’an, practicing daily fasting, and re-negotiating hudud – that is moral boundaries and legal limits that have long been a subject of wide debate and of social reforms; at the same time, they support women’s rights as expressed in Tunisia’s Personal Status Code. Particular attention is paid in this article to the political discourse after 2011 and efforts to construct a “moral personality.”
Copala Triqui Exceptive-like Constructions
Creators: name: Yu, Kevin
Publisher: name: Zenodo
Year: 2024
Subjects: exceptives
ellipsis
syntax
semantics
Copala Triqui

description: This file contains data on the exceptive construction in the Mixtecan language Copala Triqui. It was collected under NSF projects BCS2116343 and BCS2116344, "Collaborative Research: Variation in Exceptive Structures."
Finite element analysis of fluid induced fracture behaviour in oilsand
Creators: name: Atukorala, Upul Dhananath
Publisher: name: University of British Columbia
Year: 2010

description: In-situ recovery of oil from Oilsand deposits at depth, rely on fluid induced fracturing of Oilsand. A method of analysis for predicting the initiation and propagation of fractures in Oilsand has been developed. The prediction of fracture initiation involves a stress analysis of the domain. Analysis of fracture propagation requires a coupled stress and flow analysis'. In the method proposed herein, the stress and flow analyses are first considered as two separate analyses that are later coupled through volume compatibility. For the fluid flow analysis, the fractures are approximated as parabolic in shape. Fracture propagation has been analyzed incrementally, the direction of propagation being perpendicular to the computed minor principal stress direction at the tip of the fracture. The results are in good agreement with both laboratory and field experience. The results indicate that the presence of a propagating fracture causes significant changes in both the magnitude and orientation of the minor principal stress, at the tip of the fracture. As a result, a path of propagation that is significantly different from the initial in-situ minor principal stress plane direction has been observed. The rate of pumping of fluid, is an important factor in predicting the propagation behaviour of fractures in Oilsand. In fracture operations carried out at shallow depths, that involve high rates of pumping, the fractures must be dominantly horizontal in orientation. This is a result of the increase in fluid carrying capacity of the horizontal fractures, observed with propagation.
State-Space Model Inspired Multiple-Input Multiple-Output Spiking Neurons
Creators: name: Karilanova, Sanja
name: Dey, Subhrakanti
name: Özçelikkale, Ayça
Publisher: name: arXiv
Year: 2025
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In spiking neural networks (SNNs), the main unit of information processing is the neuron with an internal state. The internal state generates an output spike based on its component associated with the membrane potential. This spike is then communicated to other neurons in the network. Here, we propose a general multiple-input multiple-output (MIMO) spiking neuron model that goes beyond this traditional single-input single-output (SISO) model in the SNN literature. Our proposed framework is based on interpreting the neurons as state-space models (SSMs) with linear state evolutions and non-linear spiking activation functions. We illustrate the trade-offs among various parameters of the proposed SSM-inspired neuron model, such as the number of hidden neuron states, the number of input and output channels, including single-input multiple-output (SIMO) and multiple-input single-output (MISO) models. We show that for SNNs with a small number of neurons with large internal state spaces, significant performance gains may be obtained by increasing the number of output channels of a neuron. In particular, a network with spiking neurons with multiple-output channels may achieve the same level of accuracy with the baseline with the continuous-valued communications on the same reference network architecture.
description: 9 pages, 3 figures, 6 tables, conference - 2025 Neuro Inspired Computational Elements (NICE)
THE DEPENDENCE OF MEAT QUALITY ON THE CONDITIONS OF PIGS PREPARATION FOR SLAUGHTER
Creators: name: Matsiuk, A.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: pigs
transportation
keeping
slaughter
quality.

description: Proper transportation and pre-slaughter processes are important because they help preserve the quantity and quality of raw meat supplied to processing plants. Technological instructions on acceptance and pre-slaughter preparation provide optimal conditions of transportation and terms of pre-slaughter keeping of animals, as well as the use of biologically active drugs that have anti-stress effects (e.g. mixtures of choline chloride and vitamin PP), provide the opportunity to reduce losses of useful products and meat with PSE and DFD defects. It has been found that transporting pigs for slaughter at a distance of 100 km or more is accompanied by a significant loss of live weight (3.23%) and reduces the meat output, as well as adversely affects its physicochemical parameters. According to research data, the transportation of pigs at a distance of 100-110 km caused the bound water decrease and this figure was 55.89%, while the meat of the first group of pigs transported to meat processing plant 40-45 km has 58.63%. It has been established that pre-slaughter starvation of pigs should not be longer than 8 hours, longer one leads to a decrease in meat quality.
TaikoNation: Patterning-focused Chart Generation for Rhythm Action Games
Creators: name: Halina, Emily
name: Guzdial, Matthew
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Generating rhythm game charts from songs via machine learning has been a problem of increasing interest in recent years. However, all existing systems struggle to replicate human-like patterning: the placement of game objects in relation to each other to form congruent patterns based on events in the song. Patterning is a key identifier of high quality rhythm game content, seen as a necessary component in human rankings. We establish a new approach for chart generation that produces charts with more congruent, human-like patterning than seen in prior work.
description: 10 pages, 5 figures, Procedural Content Generation Workshop
Color Screening Melts Quarkonium
Creators: name: Mocsy, Agnes
name: Petreczky, Peter
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate quarkonium spectral functions in a quark-gluon plasma using a potential model based on full QCD lattice calculations of the free energy of static quark-antiquark pair. We estimate the binding energy and the thermal width of different quarkonium states. The estimated upper limit for the dissociation temperatures is considerably lower than the ones suggested in the recent literature.
description: 4 pages. version to be published in Phys. Rev. Lett
Gene profiling for determining pluripotent genes in a time course microarray experiment
Creators: name: Tuke, J.
name: Glonek, G. F. V.
name: Solomon, P. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: In microarray experiments, it is often of interest to identify genes which have a pre-specified gene expression profile with respect to time. Methods available in the literature are, however, typically not stringent enough in identifying such genes, particularly when the profile requires equivalence of gene expression levels at certain time points. In this paper, the authors introduce a new methodology, called gene profiling, that uses simultaneous differential and equivalent gene expression level testing to rank genes according to a pre-specified gene expression profile. Gene profiling treats the vector of true gene expression levels as a linear combination of appropriate vectors, i.e., vectors that give the required criteria for the profile. This gene-profile model is fitted to the data and the resultant parameter estimates are summarized in a single test statistic that is then used to rank the genes. The theoretical underpinnings of gene profiling (equivalence testing, intersection-union tests) are discussed in this paper, and the gene profiling methodology is applied to our motivating stem cell experiment.
description: 20 pages, 6 figures, final version of the paper is now published online in Biostatistics
Evidence supporting the existence of $P_c(4380)^{\pm}$ from the recent measurements of $B_s \to J/ψp\bar{p}$
Creators: name: Wang, Jun-Zhang
name: Liu, Xiang
name: Matsuki, Takayuki
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Very recently, the LHCb collaboration released the newest measurements of $B_s \to J/ψp\bar{p}$, where an enhancement structure near 4.34 GeV was observed in the invariant mass spectrum of $J/ψp$ with the statistical significance of $3.1-3.7$ $σ$. In this work, by performing a combined analysis for the three invariant mass spectra of $B_s \to J/ψp\bar{p}$, we find that this $J/ψp$ structure near 4.34 GeV can correspond to the contributions from the $P_c(4380)^+$ state with the assumption of $J^{P}=3/2^{-}$ together with the reflections of $B_s \to (f_2^{*} \to p\bar{p})J/ψ$. Here, $P_c(4380)$ was first observed in $Λ_b \to J/ψp K$ but not confirmed in the updated LHCb data in 2019, and $f_2^{*}$ means the exciting light isoscalar tensor meson around 2.0 GeV. Thus, this provides a possible evidence to support the existence of the pentaquark $P_c(4380)$. Specifically, the assumed spin parity $J^{P}=3/2^{-}$ of $P_c(4380)$ is consistent with a prediction of the theoretical explanation of an $S$-wave $\bar{D}Σ_c^*$ molecular bound state.
description: 8 pages, 2 tables and 3 figures, accepted by Physical Review D
Correlation between the Charged Current Interactions of Light and Heavy Majorana Neutrinos
Creators: name: Xing, Zhi-zhong
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The evidence for neutrino oscillations implies that three neutrino flavors (ν_e, ν_μ, ν_τ) must have different mass states (ν_1, ν_2, ν_3). The most popular idea of generating tiny masses of ν_i is to introduce three heavy Majorana neutrinos N_i (for i = 1, 2, 3) into the standard model and implement the seesaw mechanism. In this approach the neutrino mixing matrix V appearing in the charged current interactions of ν_i is not unitary, and the strength of unitarity violation of V is associated with the matrix R which describes the strength of charged current interactions of N_i. We present an explicit parametrization of the correlation between V and R in terms of nine rotation angles and nine phase angles, which can be measured or constrained in the precision neutrino oscillation experiments and by exploring possible signatures of N_i at the LHC and ILC. Two special but viable scenarios, the Type-I seesaw model with two heavy Majorana neutrinos and the Type-II seesaw model with one heavy Majorana neutrino and one Higgs triplet, are taken into account to illustrate the simplified V-R correlation. The implications of R \neq 0 on the low-energy neutrino phenomenology are also discussed. In particular, we demonstrate that the non-unitarity of V is possible to give rise to an appreciable CP-violating asymmetry between ν_μ-> ν_τand \barν_μ-> \barν_τoscillations with short or medium baselines.
description: RevTex 13 pages (1 figure). Some minor corrections and changes. Accepted for publication in Phys. Lett. B
Pohlmeyer reduction revisited
Creators: name: Miramontes, J. Luis
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A systematic group theoretical formulation of the Pohlmeyer reduction is presented. It provides a map between the equations of motion of sigma models with target-space a symmetric space M=F/G and a class of integrable multi-component generalizations of the sine-Gordon equation. When M is of definite signature their solutions describe classical bosonic string configurations on the curved space-time R_t\times M. In contrast, if M is of indefinite signature the solutions to those equations can describe bosonic string configurations on R_t\times M, M\times S^1_\vartheta or simply M. The conditions required to enable the Lagrangian formulation of the resulting equations in terms of gauged WZW actions with a potential term are clarified, and it is shown that the corresponding Lagrangian action is not unique in general. The Pohlmeyer reductions of sigma models on CP^n and AdS_n are discussed as particular examples of symmetric spaces of definite and indefinite signature, respectively.
description: 45 pages, LaTeX, more references added, accepted for publication in JHEP
Hybrid inflation and waterfall field in string theory from D7-branes
Creators: name: Antoniadis, Ignatios
name: Lacombe, Osmin
name: Leontaris, George K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present an explicit string realisation of a cosmological inflationary scenario we proposed recently within the framework of type IIB flux compactifications in the presence of three magnetised D7-brane stacks. Inflation takes place around a metastable de Sitter vacuum. The inflaton is identified with the volume modulus and has a potential with a very shallow minimum near the maximum. Inflation ends due to the presence of "waterfall" fields that drive the evolution of the Universe from a nearby saddle point towards a global minimum with tuneable vacuum energy describing the present state of our Universe.
description: 41 pages, 3 figures. v2: published version, added precisions on transverse moduli masses on p.24 + solved issue with tables aspect + minor corrections
Privatization in public schools: New Jersey communities in conflict
Creators: name: Previ, Barbara
Publisher: name: No Publisher Supplied
Year: 2024

description: This dissertation explores the complex dynamics and conflicts surrounding the privatization of public school services in New Jersey. Through detailed case studies of multiple New Jersey towns, this dissertation examines how local school districts, grappling with funding challenges, consider outsourcing educational support professional roles to cut costs. The study delves into the contentious negotiations between school administrations pushing for privatization and labor unions defending public employees' jobs. Utilizing Bowers & Ochs' (1971) framework of agitation and control, the dissertation analyzes the tactical interplay between unions and school administrations, emphasizing the unions' strategic coordination with parents and the broader community to oppose privatization efforts. The research highlights the transformative role of unions in community organizing against privatization, shedding light on the broader implications for labor movements, public education organizing, and community development. This work contributes to the academic discourse on labor literature, community unionism, and the challenges facing public education in the face of privatization and fiscal austerity.
COMPARATIVE ANALYSIS OF CONTENT FEATURES OF THE PIANISTS-PERFORMERS TRAINING IN ART INSTITUTIONS OF HIGHER EDUCATION OF CHINA AND UKRAINE
Creators: name: Boyuan, Wang
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: pianists-performers
training of pianists-performers
content features
art institutions of higher education
China
Ukraine.

description: The article provides a comparative analysis of the content features of the pianists-performers training in art institutions of higher education in China and Ukraine. The purpose of teaching in the leading art institutions of higher education in Ukraine and China and their curricula are analyzed. Common and distinctive features are distinguished
Engineering of Ferroic Orders in Thin Films by Anionic Substitution
Creators: name: Garcia-Castro, A. C.
name: Ma, Yanjun
name: Romestan, Zachary
name: Bousquet, Eric
name: Cen, Cheng
name: Romero, Aldo H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Multiferroics are a unique class of materials where magnetic and ferroelectric orders coexist. The research on multiferroics contributes significantly to the fundamental understanding of the strong correlations between different material degrees of freedom and provides an energy-efficient route toward the electrical control of magnetism. While multiple ABO3 oxide perovskites have been identified as being multiferroic, their magnetoelectric coupling strength is often weak, necessitating the material search in different compounds. Here, we report the observation of room-temperature multiferroic orders in multi-anion SrNbO3-xNx thin films. In these samples, the multi-anion state enables the room-temperature ferromagnetic ordering of the Nb d-electrons. Simultaneously, we find ferroelectric responses that originate from the structural symmetry breaking associated with both the off-center displacements of Nb and the geometric displacements of Sr, depending on the relative O-N arrangements within the Nb-centered octahedra. Our findings not only diversify the available multiferroic material pool but also demonstrate a new multiferroism design strategy via multi-anion engineering.
Social norms in indirect reciprocity with ternary reputations
Creators: name: Murase, Yohsuke
name: Kim, Minjae
name: Baek, Seung Ki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: Indirect reciprocity is a key mechanism that promotes cooperation in social dilemmas by means of reputation. Although it has been a common practice to represent reputations by binary values, either `good' or `bad', such a dichotomy is a crude approximation considering the complexity of reality. In this work, we studied norms with three different reputations, i.e., `good', `neutral', and `bad'. Through massive supercomputing for handling more than thirty billion possibilities, we fully identified which norms achieve cooperation and possess evolutionary stability against behavioural mutants. By systematically categorizing all these norms according to their behaviours, we found similarities and dissimilarities to their binary-reputation counterpart, the leading eight. We obtained four rules that should be satisfied by the successful norms, and the behaviour of the leading eight can be understood as a special case of these rules. A couple of norms that show counter-intuitive behaviours are also presented. We believe the findings are also useful for designing successful norms with more general reputation systems.
description: 18 pages, 6 figures
CONTENT FEATURES OF VOCALISTS’ PROFESSIONAL TRAINING IN THE SYSTEM OF HIGHER MUSIC EDUCATION OF CHINA AND UKRAINE: A COMPARATIVE ANALYSIS
Creators: name: Lianhong, Zhang
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: vocalists
professional training of vocalists
content features
system of higher music education
China
Ukraine.

description: The article presents a comparative analysis of the content features of vocalists’ professional training in the system of higher music education in China and Ukraine. The common and distinctive features are singled out. They cover such aspects as the curriculum and the subjects studied; practical goals of vocal training; exams and tests; qualification of graduates of music universities; graduates and employment; teaching methods in art institutions of higher education
Neutron spin rotation in \vec{n}-d scattering
Creators: name: Schiavilla, R.
name: Viviani, M.
name: Girlanda, L.
name: Kievsky, A.
name: Marcucci, L. E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The neutron spin rotation induced by parity-violating (PV) components in the nucleon-nucleon potential is studied in \vec{n}-d scattering at zero energy. Results are obtained corresponding to the Argonne v_{18} two-nucleon and Urbana-IX three-nucleon strong-interaction potentials in combination with either the DDH or pionless EFT model for the weak-interaction potential. We find that this observable is dominated by the contribution of the long-range part of the PV potential associated with pion exchange. Thus its measurement could provide a further constraint, complementary to that coming from measurements of the photon asymmetry in \vec{n}-p radiative capture, on the strength of this component of the hadronic weak interaction.
description: 11 pages, 1 figure
Local Advantage Actor-Critic for Robust Multi-Agent Deep Reinforcement Learning
Creators: name: Xiao, Yuchen
name: Lyu, Xueguang
name: Amato, Christopher
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: Policy gradient methods have become popular in multi-agent reinforcement learning, but they suffer from high variance due to the presence of environmental stochasticity and exploring agents (i.e., non-stationarity), which is potentially worsened by the difficulty in credit assignment. As a result, there is a need for a method that is not only capable of efficiently solving the above two problems but also robust enough to solve a variety of tasks. To this end, we propose a new multi-agent policy gradient method, called Robust Local Advantage (ROLA) Actor-Critic. ROLA allows each agent to learn an individual action-value function as a local critic as well as ameliorating environment non-stationarity via a novel centralized training approach based on a centralized critic. By using this local critic, each agent calculates a baseline to reduce variance on its policy gradient estimation, which results in an expected advantage action-value over other agents' choices that implicitly improves credit assignment. We evaluate ROLA across diverse benchmarks and show its robustness and effectiveness over a number of state-of-the-art multi-agent policy gradient algorithms.
First-order restoration of SU(Nf) x SU(Nf) chiral symmetry with large Nf and Electroweak phase transition
Creators: name: Kikukawa, Y.
name: Kohda, M.
name: Yasuda, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It has been argued by Pisarski and Wilczek that finite temperature restoration of the chiral symmetry SU(Nf) x SU(Nf) is first-order for Nf >=3. This type of chiral symmetry with a large Nf may appear in the Higgs sector if one considers models such as walking technicolor theories. We examine the first-order restoration of the chiral symmetry from the point of view of the electroweak phase transition. The strength of the transition is estimated in SU(2) x U(1) gauged linear sigma model by means of the finite temperature effective potential at one-loop with the ring improvement. Even if the mass of the neutral scalar boson corresponding to the Higgs boson is larger than 114 GeV, the first-order transition can be strong enough for the electroweak baryogenesis, as long as the extra massive scalar bosons (required for the linear realization) are kept heavier than the neutral scalar boson. Explicit symmetry breaking terms reduce the strength of the first-order transition, but the transition can remain strongly first-order even when the masses of pseudo Nambu-Goldstone bosons become as large as the current lower bound of direct search experiments.
description: 18 pages, 18 figures, minor corrections, references added
Evaluating and Examining the Problems of Iran’s Ministry of Higher Education and Universities’ English Language Proficiency Tests and Stakeholders’ Language Needs Analysis
Creators: name: Pishghadam, Reza
name: Ebrahimi, Shima
name: Shayesteh, Shaghayegh
name: Tabatabaee Farani, Sahar
name: Jajarmi, Haniyeh
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 390303
subject: Higher education

description: This study aims to explore English language proficiency tests of Iran’s Ministry of Higher Education and universities by analyzing the needs of the participants (PhD candidates and graduates) and then propose a standard and uniform test. To this end, after thematizing the qualitative answers obtained through semi-structured interviews with 30 faculty members (19 females and 11 males) and 35 PhD candidates and graduates (13 females and 22 males) from different cities and majors in universities throughout Iran, a researcher-made questionnaire was developed. To validate the designed questionnaire, first 200 PhD graduates and candidates (117 males and 83 females), studying various majors in universities across Iran, answered the questionnaire (convenience sampling). Then 442 participants (223 males and 219 females) including PhD graduates (N= 57), PhD candidates (N= 320), and faculty members (N= 65) answered the validated questionnaire. Totally, 642 participants expressed their views on the problems of English language proficiency tests in terms of four criteria: validity, reliability, impact, and fairness of the test. The findings show that the participants are not satisfied with these tests and believe that these tests are designed based on the old versions of TOEFL and IELTS international tests and cultural and local considerations are overlooked. Finally, some suggestions are made to improve the quality of English language proficiency tests in Iran.
Radiative $Ξ_{b}^{-}\rightarrow Ξ^{-}γ$ decay
Creators: name: Olamaei, A. R.
name: Azizi, K.
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: FOS: Physical sciences

description: Recently, the LHCb Collaboration performed first search for the rare radiative $Ξ_{b}^{-}\rightarrow Ξ^{-}γ$ decay and put an upper limit, ${\cal B}(Ξ_{b}^{-}\to Ξ^{-}γ) < 1.3 \times 10^{-4}$, on its branching ratio. The measurement agrees well with existing theory prediction using SU(3) flavor symmetry method, but shows a slight tension with the previous prediction from light-cone sum rules. Inspired by this, we investigate this decay as well as other radiative decays of $Ξ_b^{0(-)}(Ξ^{'-}_{b})$ to $Ξ^{0(-)}$ and $Σ^{0(-)}$ baryons using the form factors calculated from light-cone QCD sum rules in full theory. we obtain $ {\cal B}(Ξ_{b}^{-}\to Ξ^{-}γ)=1.08^{+0.63}_{-0.49} \times 10^{-5} $, which lies below the upper limit set by LHCb and is consistent with flavor-symmetry driven prediction. Our predictions on other channels may be checked in experiment and by other phenomenological approaches.
description: 16 Pages and 5 Tables
Astrophysical Relevance of Storage-Ring Electron-Ion Recombination Experiments
Creators: name: Schippers, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The relevance of storage-ring electron-ion recombination experiments for astrophysics is outlined. In particular, the role of low-energy dielectronic-recombination resonances is discussed. A bibliographic compilation of electron-ion recombination measurements with cosmically abundant ions is provided.
description: 8 pages, 3 figures, 1 table, 77 references, Proceedings of the 14th International Conference on the Physics of Highly Charged Ions, Cofu, Tokyo, Septmber 1-5, 2008, to be published in J. Phys. Conf. Ser
DEVELOPMENT OF SELF-EDUCATIONAL COMPETENCE OF FUTURE ENGINEERS OF COMPUTER SYSTEMS AND AUTOMATION
Creators: name: Dzhedzhula, O.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: self-educational competence
engineers of computer systems and automation
self-educational activities
project activities.

description: The article analyzes the research of the problem of developing self-educational competence. There are 4 types of self-educational activities: сommon (mastering the social experience necessary in everyday life), self-realization (changing properties and qualities of personality in accordance with the ideal), cognitive (knowledge of the surrounding world), professional serves to maintain and increase efficiency professional competence and social significance importance. A method of developing self-educational competence of future engineers of computer systems and automation is proposed. The effectiveness of the proposed technique has been experimentally confirmed.
In-situ testing techniques applied to embankments over soft organic soils
Creators: name: Brown, Stephen Granger
Publisher: name: University of British Columbia
Year: 2010

description: The investigation of a test fill over organic soils has been carried out using three in-situ testing techniques. One-half of the fill area is serviced by wick drains while the other half remains in a natural state. Piezometer cone penetration tests, dilatometer tests and field vane tests were used to monitor the test embankment over a one year period during both the construction and consolidation phases. The ability of these tests to monitor embankments is evaluated. The results show that the piezometer cone penetration test gives the best overall performance. The results also show that the wick drains improved the drainage of the organic soils significantly. In a separate study, piezometer cone penetration tests, dilatometer tests and screw plate tests were performed to determine engineering properties of the organic soil such as undrained shear strength, coefficient of consolidation and drained constrained modulus. The strengths and weaknesses of each test are discussed with particular reference to the testing of organic soils. Finally, predictions of settlement are made from the in-situ drained moduli and are compared with the observed settlements. Settlements predicted using Sanglerat's (1972) correlation for drained modulus for the cone penetration test were found to compare well with the observed values.
Non-Hermitian topology in rock-paper-scissors games
Creators: name: Yoshida, Tsuneya
name: Mizoguchi, Tomonari
name: Hatsugai, Yasuhiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Non-Hermitian topology is a recent hot topic in condensed matters. In this paper, we propose a novel platform drawing interdisciplinary attention: rock-paper-scissors (RPS) cycles described by the evolutionary game theory. Specifically, we demonstrate the emergence of an exceptional point and a skin effect by analyzing topological properties of their payoff matrix. Furthermore, we discover striking dynamical properties in an RPS chain: the directive propagation of the population density in the bulk and the enhancement of the population density only around the right edge. Our results open new avenues of the non-Hermitian topology and the evolutionary game theory.
description: 6+6 pages, 4+5 figures
Electron-Electron Interactions in the Vacuum Polarization of Graphene
Creators: name: Kotov, Valeri N.
name: Uchoa, Bruno
name: Neto, A. H. Castro
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We discuss the effect of electron-electron interactions on the static polarization properties of graphene beyond RPA. Divergent self-energy corrections are naturally absorbed into the renormalized coupling constant $α$. We find that the lowest order vertex correction, which is the first non-trivial correlation contribution, is finite, and about 30% of the RPA result at strong coupling $α\sim 1$. The vertex correction leads to further reduction of the effective charge. Finite contributions to dielectric screening are expected in all orders of perturbation theory.
description: 5 pages, 2 figures; published version
3D Lyman-alpha radiation transfer. III. Constraints on gas and stellar properties of z~3 Lyman break galaxies (LBG) and implications for high-z LBGs and Lyman-alpha emitters(LAEs)
Creators: name: Verhamme, Anne
name: Schaerer, Daniel
name: Atek, Hakim
name: Tapken, Christian
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Aim of our study is to understand the variety of observed Lyman-alpha (Lya) line profiles and strengths in Lyman Break Galaxies (LBGs) and Lya emitters (LAEs), the physical parameters governing them, and hence deriving constraints on the gas and dust content and stellar populations of these objects. Using our 3D Lya radiation transfer code including gas and dust (Verhamme et al. 2006), we fit 11 LBGs from the FORS Deep Field with redshifts between 2.8 and 5 observed by Tapken et al. (2007). A simple geometry of a spherically expanding shell of HI is adopted. RESULTS : The variety of observed Lya profiles is successfully reproduced. Most objects show outflow velocities of 150-200 km/s; two objects are most likely quasi-static. The radial HI column density ranges from NH=2.10^{19} to 7.10^{20} cm^{-2}. Our Lya profile fits yield values of E(B-V)~0.05-0.2 for the gas extinction. We find indications for a dust-to-gas ratio higher than the Galactic value, and for a substantial scatter. The escape fraction of Lya photons is found to be determined primarily by the extinction, and a simple fit formula is proposed. Intrinsic EW(Lya)~50-100 Angstroms are found for 8/11 objects, as expected for stellar populations forming constantly over long periods (> 10-100 Myr). In three cases we found indications for younger populations. Correlations between the observed EW(Lya) and other observables such as FWHM(Lya), E(B-V),SFR(UV) etc, are reproduced. We also show that there is a clear overlap between LBGs and LAEs. Radiation transfer and dust effects explain the increase of the LAE/LBG ratio, and a higher percentage of LBGs with strong Lya emission with increasing redshift. [shortened]
description: 26 pages, accepted for publication in A&A
Quarkonium production and polarisation with early data at ATLAS
Creators: name: Price, Darren D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: One of the first physics results to come out of ATLAS will be an analysis of J/psi and Upsilon production at 14 TeV. I give an overview of the motivation for looking at the theoretical model underlying quarkonium production, ATLAS expected performance and rates for quarkonium reconstruction and ability to separate out various proposed production models with a view to improving our understanding of QCD.
description: 5 pages, 3 figures. Presented at the Lake Louise Winter Institute, Alberta, Canada, 18th - 23rd February, 2008. To be published by World Scientific
EFFECTIVE PEDAGOGICAL CONDITIONS OF FORMATION OF COMMUNICATIVE COMPETENCE OF FUTURE AGRARIAN ENGINEERS
Creators: name: Kovalova, K.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: pedagogical conditions
communicative competence
personality-oriented approach
the subject position of students
contextual learning
future agrarian engineers.

description: The article examines the pedagogical conditions of formation of the communicative competence of future agrarian engineers. The formation of the communicative competence of future engineers requires the need to substantiate the pedagogical conditions under which the formation will take place in the most effective way. The purpose of the article is to consider the pedagogical conditions for the formation of the communicative competence of future engineers. It is shown that the process of forming of the communicative competence of future agrarian engineers is impossible without the creation and implementation of pedagogical conditions, on which the efficiency of the learning process depends and that affects the quality of the training of future specialists. It has been proved that this process will be more successful, while using such pedagogical conditions as the use of a personality-oriented approach in teaching, providing of a contextual approach and the subject position of students in the process of professional communication training; the use of training exercises aimed at increasing the communication activity of students
Cosmic Acceleration, Dark Energy and Fundamental Physics
Creators: name: Turner, Michael S.
name: Huterer, Dragan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A web of interlocking observations has established that the expansion of the Universe is speeding up and not slowing, revealing the presence of some form of repulsive gravity. Within the context of general relativity the cause of cosmic acceleration is a highly elastic (p\sim -rho), very smooth form of energy called ``dark energy'' accounting for about 75% of the Universe. The ``simplest'' explanation for dark energy is the zero-point energy density associated with the quantum vacuum; however, all estimates for its value are many orders-of-magnitude too large. Other ideas for dark energy include a very light scalar field or a tangled network of topological defects. An alternate explanation invokes gravitational physics beyond general relativity. Observations and experiments underway and more precise cosmological measurements and laboratory experiments planned for the next decade will test whether or not dark energy is the quantum energy of the vacuum or something more exotic, and whether or not general relativity can self consistently explain cosmic acceleration. Dark energy is the most conspicuous example of physics beyond the standard model and perhaps the most profound mystery in all of science.
description: 10 pages, 8 figures, invited review for Journal of the Physical Society of Japan, in press
New Trends in Electrochemical Capacitors
Creators: name: Slesinski Adam
name: Fic Krzysztof
name: Frackowiak Elzbieta
Publisher: name: Zenodo
Year: 2018

description: This chapter provides an overview of electrochemical capacitors (ECs) technology. General principles of ion adsorption and interfacial phenomena governing the energy storage in these devices are discussed. True capacitance metrics and appropriate measurement conditions are demonstrated and followed by a discussion of the electrode materials and electrolytes most often applied. Novel trends in ECs, such as pseudocapacitance from electrolytic solutions and hybrid Li-ion capacitors, are also presented.
description: The authors acknowledge the grant of the Ministry of Science and Higher Education, no. 03/31/DSPB/0353.Ad
Damping of field-induced chemical potential oscillations in ideal two-band compensated metals
Creators: name: Fortin, Jean-Yves
name: Audouard, Alain
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The field and temperature dependence of the de Haas-van Alphen oscillations spectrum is studied for an ideal two-dimensional compensated metal. It is shown that the chemical potential oscillations, involved in the frequency combinations observed in the case of uncompensated orbits, are strongly damped and can even be suppressed when the effective masses of the electron- and hole-type orbits are the same. When magnetic breakdown between bands occurs, this damping is even more pronounced and the Lifshits-Kosevich formalism accounts for the data in a wide field range.
description: 11 pages, 10 figures, to appear in PRB
OPPORTUNITIES FOR THE FORMATION OF COGNITIVE METASUBJECT COMPETENCIES IN PRIMARY SCHOOL
Creators: name: Zak, A.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: junior schoolchildren
cognitive meta-subject competences
methods of solving problems
types of cognitive reflection
the program "Intellectica".

description: The aim of the study is to determine the conditions for the formation of cognitive actions in fourth-graders, associated with the construction of methods for solving problems and with reflection when solving problems. It was assumed that the mastering by children of the basic educational program and the author's program "Intellectica" contributes to the formation of cognitive actions to a greater extent than the development of the basic educational program alone. This is due to the fact that the program includes non-educational search tasks of various kinds, each genus several species, each species several options. Moreover, each lesson according to the program includes the analysis of the teacher with the students of the sample problem, the independent solution of problems, the analysis with the students of correct and incorrect solutions. The study involved 117 pupils of the 4th grade (46 the experimental group, 71 the control group), 46 children were engaged in the program "Intellecticа" for the entire academic year (32 classes). The initial and final diagnostics were carried out with pupils of both groups on the material of two tasks of the author's methodology "Substitution": the first task is intended to determine a method for solving search problems (general or particular method), the second task is to determine the type of reflection when solving problems (meaningful or formal reflection ). The final diagnostics showed: 63.1% of children in the experimental group solved the problems in a general way, 42.3% in the control group (the difference in results is statistically significant at p <0.01); carried out meaningful reflection, respectively, 26.1% and 12.7% (the difference is significant at p <0.05). Research has shown for the first time that the “Intellecticа” program is an effective condition the formation of cognitive metasubject competences in primary school.