cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Towards Yang-Baxter integrability of quantum crystal melting: From Kagome lattice to vertex models
Creators: name: Araujo, Thiago
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This paper considers aspects of a Kagome lattice system with states classified by plane partitions. Using two sets of free fermions, we rewrite the lattice in terms of two families of spin chains. In this formalism, the quantum crystals Hamiltonian becomes more transparent, and we determine expressions for the first 3 levels of plane partition states. A classical statistical model associated with local configurations in the Kagome lattice is also defined, and we show that a reduction of this classical system gives two Yang-Baxter integrable subsystems analogous to a descendant of the 6-vertex model.
description: 30 pages, 19 figures; v2: published version
title: Technologies Energetiques
Creators: name: Krysiński, Jan
name: Piotrkowska, Dorota
Publisher: name: Wydawnictwo Politechniki Łódzkiej, Lodz University of Technology
Year: 2019

description: Sur la base de mes cours donnés en français dans le domaine de l'énergie, d'abord en 1977-1978 en tant que professeur associé à l'Université Paris VI, puis en 1981-1986 comme professeur de l'Université des Sciences et de la Technologie d'Oran (Algérie) et enfin entre 1997 et 2011 à l'Université Polytechnique de Lodz dans le cursus « Gestion et Technologie » conduit en français, j'ai décidé d'écrire ce livre « Technologies énergétiques », qui traite globalement des problèmes de la transformation de l'énergie thermique en énergie mécanique. Une impulsion supplémentaire pour écrire cet ouvrage m’a été donnée par les étudiants polonais de la célèbre école française Arts et Métiers ParisTech (ENSAM) dans le cadre du programme « Double Diplôme », où la connaissance des problèmes de conversion d'énergie est l’une des exigences du cursus.
Curvature of vector bundles associated to holomorphic fibrations
Creators: name: Berndtsson, Bo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Complex Variables (math.CV)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 32L15, 32W05

description: Let $L$ be a (semi)-positive line bundle over a Kahler manifold, $X$, fibered over a complex manifold $Y$. Assuming the fibers are compact and non-singular we prove that the hermitian vector bundle $E$ over $Y$ whose fibers over points $y$ are the spaces of global sections over $X_y$ to $L\gr K_{X/Y}$ endowed with the $L^2$-metric is (semi)-positive in the sense of Nakano. We also discuss various applications, among them a partial result on a conjecture of Griffiths on the positivity of ample bundles. This is a revised and much expanded version of a previous preprint with the title `` Bergman kernels and the curvature of vector bundles''.
description: This revision simplifies some proofs. An incorrect proof from the appendix has also been withdrawn (it was not used in the rest of the paper)
Transient spectrum of a single-Cooper-pair box with binomial states
Creators: name: Abdel-Aty, Mahmoud
name: Abdel-Hameed, Hamada F.
name: Metwally, N.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present an analytical expression for the response of a transient spectrum to a single-Cooper-pair box biased by a classical voltage and irradiated by a single-mode quantized field. The exact solution of the model is obtained, by means of which we analyze the analytic form of the fluorescence spectrum using the transitions among the dressed states of the system. An interesting relation between the fluorescence spectrum and the dynamical evolution is found when the initial field states are prepared in binomial states.
description: 12 pages, 5 figures
Geometry of work fluctuations versus efficiency in microscopic thermal machines
Creators: name: Miller, Harry J. D.
name: Mehboudi, Mohammad
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: When engineering microscopic machines, increasing efficiency can often come at a price of reduced reliability due to the impact of stochastic fluctuations. Here we develop a general method for performing multi-objective optimisation of efficiency and work fluctuations in thermal machines operating close to equilibrium in either the classical or quantum regime. Our method utilises techniques from thermodynamic geometry, whereby we match optimal solutions to protocols parameterised by their thermodynamic length. We characterise the optimal protocols for continuous-variable Gaussian machines, which form a crucial class in the study of thermodynamics for microscopic systems.
description: Published version is open access; 13 pages, 5 figures
Kilobyte Cosmic Birefringence from ALP Domain Walls
Creators: name: Takahashi, Fuminobu
name: Yin, Wen
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: ALP domain walls without strings may be formed in the early Universe. We point out that such ALP domain walls lead to both isotropic and anisotropic birefringence of cosmic microwave background (CMB) polarization, which reflects spatial configuration of the domain walls at the recombination. The polarization plane of the CMB photon coming from each domain is either not rotated at all or rotated by a fixed angle. For domain walls following the scaling solution, the cosmic birefringence of CMB is characterized by $2^{N}$, i.e. $N$-bit, of information with $N = {\cal O}(10^{3-4})$ being equal to the number of domains at the last scattering surface, and thus the name, $kilobyte~ cosmic~ birefringence$. The magnitude of the isotropic birefringence is consistent with the recently reported value, while the anisotropic one is determined by the structure of domains at the last scattering surface. The predicted cosmic birefringence is universal over a wide range of the ALP mass and coupling to photons. The detection of both signals will be a smoking-gun evidence for the ALP domain walls without strings.
description: 32pages, 5 figures; v3: estimation of anisotropic cosmic birefringence added, conclusions unchanged, version to appear in JCAP
Seismic Vulnerability Assessment of Sid Maiza Mosque
Creators: name: Bahar Sadek
name: Yassine Zelmat
name: Sidi Mohammed Etamine Bourdim
Publisher: name: Zenodo
Year: 2024
Subjects: Masonry Buildings; Old City; Seismic Vulnerability; Vulnerability Index; GNTD II.

description: Abstract

The seismic vulnerability and risk assessment of monuments is really essential in rehabilitation programs and should not focus exclusively on recognized historic and heritage buildings but also related to current old masonry buildings highly valued in the urban environment. Moreover, because of their geographical, demographic or historical characteristics, certain ancient cities are particularly interesting and critical with regard to the reduction of seismic risks. For example, Ténès, a coastal town on the Mediterranean Sea, is one of the summer destinations. This fact explains the high seasonal flow of the population, combined with the high seismic risk of the region. Based on the elements presented, this article approaches the evaluation of the seismic vulnerability of old buildings by applying a simplified vulnerability method to the old Ténès city. This method is based on a vulnerability index, which makes it possible to assess the damage and create scenarios of human and economic losses in the broad sense (Vicente et al., 2011). A mosque and evaluated according to the targeted methodology. In this case, the seismic performance of a masonry mosque in the old city of Ténès was evaluated, selecting the approach considered most appropriate for the group and having chosen an analytical approach. The study was carried out by the GNTD II method. After analyzing the characteristics of the building and evaluating their seismic behavior, the capacity and fragility curves were produced according to the damage distributions.
Nonlinearities in the US corn-ethanol-oil price system
Creators: name: Serra, Teresa
name: Zilberman, David
name: Gil, Jose Maria
name: Goodwin, Barry K.
name: Serra, Teresa
name: Zilberman, David
name: Gil, Jose Maria
name: Goodwin, Barry K.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Resource /Energy Economics and Policy
subject: Biofuels
subject: United States
subject: Cointegration
subject: Threshold

description: We use a smooth transition vector error correction model to assess price relationships within the US ethanol industry. Daily ethanol, corn and oil futures prices observed from mid-2005 to mid-2007 are used in the analysis. Results indicate the existence of an equilibrium relationship between ethanol, corn and oil prices. However, only ethanol prices adjust, in a non-linear fashion, to deviations from this long-run parity. Generalized impulse response functions indicate that a shock to both oil and corn prices causes a change in ethanol prices of the same sign. Ethanol responses usually reach a peak after about 10 days of the initial shock and fade away within 35 days.
Key Issues Affecting the Feasibility of Producer-Owned, Value-Added Ventures in the South
Creators: name: Wolfe, Kent
name: Barefield, Alan
name: Wolfe, Kent
name: Barefield, Alan
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: agribusiness
subject: agritourism
subject: cooperative
subject: demand
subject: economic development
subject: entrepreneur
subject: entrepreneurship
subject: goats
subject: value-added venture

description: The transition from agricultural producer to agribusiness entrepreneur is littered with obstacles not associated with traditional farming operations. Producers are typically faced with an established market for their products as well as defined production practices and budgets. These familiar industry institutions are not available for use in the agribusiness environment. As a result, entrepreneurs are faced with new, unfamiliar situations that can significantly affect the success of their proposed or fledging business.
МЕТОДИКА ПРИМЕНЕНИЯ ИГРОВЫХ ТЕХНОЛОГИЙ НА УРОКАХ РУССКОГО ЯЗЫКА
Creators: name: Эргашева, Дильфуза
Publisher: name: Zenodo
Year: 2024

description: В статье рассматривается значимость использования игровых технологий на уроках русского языка, как один из  мощных  средств  обучения. Автор приходит к выводу, что использование игр на уроках русского языка рекомендуется тогда, когда применение игровых методов также способствует развитию культуры общения и воспитывает активную личность, способную видеть, формулировать и решать нестандартные проблемы.
Synchronous and Asynchronous Recursive Random Scale-Free Nets
Creators: name: Comellas, Francesc
name: Rozenfeld, Hernan D.
name: ben-Avraham, Daniel
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the differences between scale-free recursive nets constructed by a synchronous, deterministic updating rule (e.g., Apollonian nets), versus an asynchronous, random sequential updating rule (e.g., random Apollonian nets). We show that the dramatic discrepancies observed recently for the degree exponent in these two cases result from a biased choice of the units to be updated sequentially in the asynchronous version.
Spin diffusion and spin conductivity in the 2d Hubbard model
Creators: name: Ulaga, Martin
name: Mravlje, Jernej
name: Kokalj, Jure
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the spin diffusion and spin conductivity in the square lattice Hubbard model by using the finite-temperature Lanczos method. We show that the spin diffusion behaves differently from the charge diffusion and has a nonmonotonic $T$ dependence. This is due to a progressive liberation of charges that contribute to spin transport and enhance it beyond that active at low temperature due to the Heisenberg exchange. We further show that going away from half-filling and zero magnetization increases the spin diffusion, but that the increase is insufficient to reconcile the difference between the model calculations and the recent measurements on cold-atoms.
description: 9 pages, 5+4 figures
Agricultural Impacts of Biofuels Production
Creators: name: Walsh, Marie E.
name: Torre Ugarte, Daniel De La
name: English, Burton C.
name: Jensen, Kimberly L.
name: Hellwinckel, Chad M.
name: Menard, R. Jamey
name: Nelson, Richard G.
name: Walsh, Marie E.
name: Torre Ugarte, Daniel De La
name: English, Burton C.
name: Jensen, Kimberly L.
name: Hellwinckel, Chad M.
name: Menard, R. Jamey
name: Nelson, Richard G.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Resource /Energy Economics and Policy
subject: biodiesel
subject: biofuels
subject: biomass
subject: cellulose feedstocks
subject: crop residues
subject: ethanol
subject: forest residues
subject: switchgrass

description: Analysis of the potential to supply 25% of projected 2025 U.S. transportation fuels indicates sufficient biomass resources are available to meet increased demand while simultaneously meeting food, feed, and export needs. Corn and soybeans continue to be important feedstocks for ethanol and biodiesel production, but cellulose feedstocks (agricultural crop residues, energy crops such as switchgrass, and forestry residues) will play a major role. Farm income increases, mostly because of higher crop prices. Increased crop prices increase the cost of producing biofuels.
Escaping an Infinitude of Lions
Creators: name: Abrahamsen, Mikkel
name: Holm, Jacob
name: Rotenberg, Eva
name: Wulff-Nilsen, Christian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Geometry (cs.CG)
subject: Computer Science and Game Theory (cs.GT)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: We consider the following game played in the Euclidean plane: There is any countable set of unit speed lions and one fast man who can run with speed $1+\varepsilon$ for some value $\varepsilon>0$. Can the man survive? We answer the question in the affirmative for any $\varepsilon>0$.
description: Published in American Mathematical Monthly, but references [5] and [10] are new. Note added about this. For a preliminary version, see arXiv:1703.03687
Economics of Sugar-Based Ethanol Production and Related Policy Issues
Creators: name: Outlaw, Joe L.
name: Ribera, Luis A.
name: Richardson, James W.
name: Da Silva, Jorge
name: Bryant, Henry L.
name: Klose, Steven L.
name: Outlaw, Joe L.
name: Ribera, Luis A.
name: Richardson, James W.
name: Da Silva, Jorge
name: Bryant, Henry L.
name: Klose, Steven L.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Resource /Energy Economics and Policy
subject: ethanol
subject: feasibility analysis
subject: simulation analysis
subject: sugarcane

description: The feasibility of integrating ethanol production into an existing sugar mill was analyzed by a stochastic spreadsheet model. As the price of corn continues to rise, ethanol producers will eventually need to look at other feedstock alternatives. Sugarcane has been proven to work well in the production of ethanol in Brazil. The results indicated existing U.S. sugar mills could economically switch to ethanol production. As imports into the United States threaten to undermine the U.S. sugar program, sugarcane producers have a viable alternative. At the very least, the alternative exists to diversify their income streams with ethanol production.
Are Maxwell knots integrable?
Creators: name: Morozov, A.
name: Tselousov, N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We review properties of the null-field solutions of source-free Maxwell equations. We focus on the electric and magnetic field lines, especially on limit cycles, which actually can be knotted and/or linked at every given moment. We analyse the fact that the Poynting vector induces self-consistent time evolution of these lines and demonstrate that the Abelian link invariant is integral of motion. The same is expected to be true also for the non-Abelian invariants (like Jones and HOMFLY-PT polynomials or Vassiliev invariants), and many integrals of motion can imply that the Poynting evolution is actually integrable. We also consider particular examples of the field lines for the particular family of finite energy source-free "knot" solutions, attempting to understand when the field lines are closed -- and can be discussed in terms of knots and links. Based on computer simulations we conjecture that Ranada's solution, where every pair of lines forms a Hopf link, is rather exceptional. In general, only particular lines (a set of measure zero) are limit cycles and represent closed lines forming knots/links, while all the rest are twisting around them and remain unclosed. Still, conservation laws of Poynting evolution and associated integrable structure should persist.
The Potential Effects on United States Agriculture of an Avian Influenza Outbreak
Creators: name: Brown, Scott
name: Madison, Daniel
name: Goodwin, Harold L.
name: Clark, F. Dustan
name: Brown, Scott
name: Madison, Daniel
name: Goodwin, Harold L.
name: Clark, F. Dustan
Publisher: name: Unknown
Year: 2007
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Livestock Production/Industries
subject: avian influenza
subject: disease outbreak
subject: econometric model
subject: poultry production
subject: poultry trade

description: The U.S. poultry industry has spent considerable resources to date preparing for an outbreak of avian influenza in this country. This research quantifies the potential effects of two alternative avian influenza scenarios on the poultry industry. In addition, this research looks at effects on other agriculture sectors including the loss of feed demand from an outbreak and the impacts on aggregate measures like farm income and consumer food expenditures. The economic sector model maintained by the Food and Agricultural Policy Research Institute (FAPRI) is employed for these scenarios.
Non-analyticity of the correlation length in systems with exponentially decaying interactions
Creators: name: Aoun, Yacine
name: Ioffe, Dmitry
name: Ott, Sébastien
name: Velenik, Yvan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We consider a variety of lattice spin systems (including Ising, Potts and XY models) on $\mathbb{Z}^d$ with long-range interactions of the form $J_x = ψ(x) e^{-|x|}$, where $ψ(x) = e^{\mathsf{o}(|x|)}$ and $|\cdot|$ is an arbitrary norm. We characterize explicitly the prefactors $ψ$ that give rise to a correlation length that is not analytic in the relevant external parameter(s) (inverse temperature $β$, magnetic field $h$, etc). Our results apply in any dimension. As an interesting particular case, we prove that, in one-dimensional systems, the correlation length is non-analytic whenever $ψ$ is summable, in sharp contrast to the well-known analytic behavior of all standard thermodynamic quantities. We also point out that this non-analyticity, when present, also manifests itself in a qualitative change of behavior of the 2-point function. In particular, we relate the lack of analyticity of the correlation length to the failure of the mass gap condition in the Ornstein--Zernike theory of correlations.
description: Minor typos corrected. Final version, to appear in Communications in Mathematical Physics
Economic Impacts of Regionalization of a Highly Pathogenic Avian Influenza Outbreak in the United States
Creators: name: Paarlberg, Philip L.
name: Seitzinger, Ann Hillberg
name: Lee, John G.
name: Paarlberg, Philip L.
name: Seitzinger, Ann Hillberg
name: Lee, John G.
Publisher: name: Unknown
Year: 2007
Subjects: Food Consumption/Nutrition/Food Safety
Livestock Production/Industries

description: This analysis examines the economic impact of an outbreak of highly pathogenic avian influenza (HPAI) and the consequences of regionalization. The results suggest that an outbreak would have serious economic effects. Depending on the regionalization scenario, returns to capital and management in the poultry meat and egg sectors would fall between $602 million and $853 million dollars over 16 quarters. Consumers of poultry meat lose $900 million in consumer surplus in the first four quarters, a decline of 10.7%. Egg consumer surplus falls 17.1%. Regionalization lowers the economic welfare losses for producers because it dampens the export loss.
Modeling Non-Linear Spatial Dynamics: A Family of Spatial STAR Models and an Application to U.S. Economic Growth
Creators: name: Pede, Valerien O.
name: Florax, Raymond J.G.M.
name: Holt, Matthew T.
name: Pede, Valerien O.
name: Florax, Raymond J.G.M.
name: Holt, Matthew T.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Research Methods/ Statistical Methods
subject: spatial econometrics
subject: non-linearity
subject: utoregressive smooth transition

description: This paper investigates non-linearity in spatial processes models and allows for a gradual regime-switching structure in the form of a smooth transition autoregressive process. Until now, applications of the smooth transition autoregressive (STAR) model have been largely confined to the time series context. The paper focuses on extending the non-linear smooth transition perspective to spatial processes models, in which spatial correlation is taken into account through the use of a so-called weights matrix identifying the topology of the spatial system. We start by deriving a non-linearity test for a simple spatial model, in which spatial correlation is only included in the transition function. Next, we propose a non-linearity test for a model that includes a spatially lagged dependent variable or spatially autocorrelated innovations as well. Monte Carlo simulations of the various test statistics are performed to examine their power and size. The proposed modeling framework is then used to identify convergence clubs in the context of U.S. county-level economic growth over the period 1963–2003.
Sports bars: environmental design, drinking, and sports betting
Creators: name: Pennay, Amy
name: Livingston, Michael
name: Cook, Megan
name: Room, Robin
name: Dwyer, Robyn
name: MacLean, Sarah
name: O’Brien, N
name: Nicholson, Matthew
name: Kuntsche, Emmanuel
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 5203
subject: Clinical and health psychology
classificationCode: 5202
subject: Biological psychology
classificationCode: 4206
subject: Public health

description: Background: Informed by literature on venue design and ‘nudging’ in the context of choice architecture, the purpose of this article is to investigate the physical design of, and practices enacted within, sports bars to provide some indication as to whether these venues are spaces that encourage risky drinking and betting. Methods: Our analysis draws on three arms of data collection: (i) website review of licensed venues in Victoria, Australia that promoted sports telecasting; (ii) observational data collection including site visits to 50 venues in Victoria that promoted sport telecasting, and more intensive sessions of observation during six sporting matches; and (iii) in situ interviews with 200 sports bar patrons. Findings: We identified three types of sports bars: (i) prototypical sports bars; (ii) venues that have a sports bar section; and (iii) venues that televise sport on occasion. Sports bar attendees reported moderately heavy drinking at sports bars and frequent engagement in sports betting. We identified two distinct groups of sports bettors. Prototypical sports bars and venues that televise sport on occasion attracted younger men who bet the least frequently but in the highest amounts, while venues that have a sports bar section attracted older men who bet more often but in smaller amounts. Conclusions: We identified several design elements across the three types of venues, each ‘nudging’ sports betting and drinking in different ways. Any focused public health work in relation to sports bars will need to consider the social and physical design elements of different sports betting environments.
Economic Parameters for Corn Ethanol and Biodiesel Production
Creators: name: Eidman, Vernon R.
name: Eidman, Vernon R.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Resource /Energy Economics and Policy
subject: biodiesel
subject: biofuels
subject: ethanol
subject: renewable energy

description: This article presents current investment and operating costs of ethanol and biodiesel plants for alternative prices of feedstock. The price of these two fuels is estimated for alternative prices of crude oil with the existing renewable fuels policy. The excise tax credit, currently $0.51 per gallon of ethanol and $1.00 per gallon of biodiesel, is a major contributor to the fuel price and profitability of these industries. The analysis demonstrates how the crude oil price, feedstock price, and excise tax credits interact to impact profitability of these industries
QCD partition function in the external field in the covariant gauge
Creators: name: Leonidov, Andrei
name: Nechitailo, Vladimir
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The QCD partition function in the external stationary gluomagnetic field is computed in the third order in external field invariants in arbitrary dimension and arbitrary covariant gauge. The contributions proportional to third order invariants in gluon field strength are shown to be dependent on covariant quantum gauge fixing parameter α
КНИГА ИСТОЧНИК ЗНАНИЙ
Creators: name: Эркинова, Ситора
name: Гафурова, Д.Х.
Publisher: name: Zenodo
Year: 2024

description: в статье рассматриваются вопросы касаемые значения книг в жизни человека. Кроме этого, в статье речь идет о влиянии лучших произведений литературы на эстетическое воспитание человека. А также автор пишет о необходимости приобщения детей к чтению книг с детсадовского возраста.
Highlights from PHENIX
Creators: name: Drees, Axel
Publisher: name: Zenodo
Year: 2021
Subjects: qm15
phenix
au+au
p+al
p+au
3he+au
direct photon
thermal photon
charm
bottom
small systems
dielectron
vtx
fvtx
muon arms
flow
hbd
heavy flavor
nuclear
modification
raa
dca
d-meson
b-meson
qgp
scaling
d+au
jet
quarkonia
forward-rapidity
mid-rapidity
backward-rapidity
run14
run15

description: Plenary talk presented at the Quark Matter 2015 conference
Does Price Cause Demand or Vice Versa? Evidence from Demand Analyses for Soft Drinks in the US
Creators: name: Kwon, Dae-Heum
name: Kwon, Dae-Heum
Publisher: name: Unknown
Year: 2008
Subjects: Demand and Price Analysis
Food Consumption/Nutrition/Food Safety

description: For the full use of the theoretical development to derive three alternative specifications of the direct, inverse, and mixed demand systems, the following empirical procedure is proposed to address three issues of the identification, functional form, and comparisons among three specifications: (i) the graphical causal methods of the PC and GES algorithms are applied to obtain an empirical guidance for the specification choice among three demand specifications; (ii) the inferred specifications are estimated with the generalized functional forms, which extend the synthetic approach based on the differential functional form framework; and the statistical tests of synthetic coefficients are used to choose the best parameterizations among the Rotterdam, LA/AIDS, CBS, NBR, and generalized functional forms within each of the three specification; (iii) the estimated results of the chosen parameterization are interpreted and compared based on the identified relationships among three demand specifications; Finally, the overall results of three alternative specifications are evaluated based on the model selection frameworks. The validity of the procedure is illustrated by using retail checkout scanner data of soft drinks consumptions.
Superfactory of bottomed hadrons Belle II
Creators: name: Eidelman, S. I.
name: Nefediev, A. V.
name: Pakhlov, P. N.
name: Zhukova, V. I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In 2018 the Belle II experiment, aimed at detailed studies of B-mesons, started operation at the electron-positron collider SuperKEKB at KEK (Japan). This was preceded by a long and quite successful work of the B-factories of previous generations, including the Belle experiment for which Belle II is a successor. This experiment is unique and has no analogues or competitors in the world. The spectrum of problems it is aimed at is quite broad: from studies of hadronic states containing heavy quarks to precision measurements and searches for New Physics beyond the Standard Model. This review describes specific features of the Belle II experiment, its ambitious goals and specific tasks, expected results of its work and the hopes related to its successful accomplishment.
description: LaTeX2e, 58 pages, 13 figures, 2 tables, review paper to appear in Phys.Usp., translation into Russian available in source package
Weighing the Quiescent Central Black Hole in an Elliptical Galaxy with X-ray Emitting Gas
Creators: name: Humphrey, Philip J.
name: Buote, David A.
name: Brighenti, Fabrizio
name: Gebhardt, Karl
name: Mathews, William G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a Chandra study of the hot ISM in the giant elliptical galaxy NGC4649. In common with other group-centred ellipticals, its temperature profile rises with radius in the outer parts of the galaxy, from ~0.7keV at 2kpc to ~0.9keV by 20kpc. However, within the central ~2kpc the trend reverses and the temperature peaks at ~1.1keV within the innermost 200pc. Under the assumption of hydrostatic equilibrium, we demonstrate that the central temperature spike arises due to the gravitational influence of a quiescent central super-massive black hole. We constrain the black hole mass (MBH) to $(3.35^{+0.67}_{-0.95})\times 10^9$Msun (90% confidence), in good agreement with stellar kinematics measurements. This is the first direct measurement of MBH based on studies of hydrostatic X-ray emitting gas, which are sensitive to the most massive black holes, and is a crucial validation of both mass-determination techniques. This agreement clearly demonstrates the gas must be close to hydrostatic, even in the very centre of the galaxy, which is consistent with the lack of morphological disturbances in the X-ray image. NGC4649 is now one of only a handful of galaxies for which MBH has been measured by more than one method. At larger radii, we were able to decompose the gravitating mass profile into stellar and dark matter (DM) components. Unless one accounts for the DM, a standard Virial analysis of the stars dramatically over-estimates the stellar mass of the galaxy. We find the measured J-band stellar mass-to-light ratio, 1.37+/-0.10 Msun/Lsun, is in good agreement with simple stellar population model calculations for this object.
description: 13 pages, 6 figures, accepted for publication in ApJ. Minor revisions to match published version
Kinetic energy dissipation and fluctuations in strongly-damped heavy-ion collisions within the stochastic mean-field approach
Creators: name: Ayik, Sakir
name: Sekizawa, Kazuyuki
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Background: Microscopic mean-field approaches have been successful in describing the most probable reaction outcomes in low-energy heavy-ion reactions. However, those approaches are known to severely underestimate dispersions of observables around the average values that has limited their applicability. Recently it has been shown that a quantal transport approach based on the stochastic mean-field (SMF) theory significantly improves the description, while its application has been limited so far to fragment mass and charge dispersions. Purpose: In this work, we extend the quantal transport approach based on the SMF theory for relative kinetic energy dissipation and angular momentum transfer in low-energy heavy-ion reactions. Results: As the first application of the proposed formalism, we consider the radial linear momentum dispersion, neglecting the coupling between radial and angular momenta. We analyze the total kinetic energy (TKE) distribution of binary reaction products in the $^{136}$Xe+$^{208}$Pb reaction at $E_\mathrm{c.m.}=526$ MeV and compare with experimental data. From time evolution of single-particle orbitals in TDHF, the radial diffusion coefficient is computed on a microscopic basis, while a phenomenological treatment is introduced for the radial friction coefficient. By solving the quantal diffusion equation for the radial linear momentum, the dispersion of the radial linear momentum is obtained, from which one can construct the TKE distribution. We find that the calculations provide a good description of the TKE distribution for large values of energy losses, TKEL $\gtrsim$ 150 MeV. However, the calculations underestimate the TKE distribution for smaller energy losses. Further studies are needed to improve the technical details of calculations. (Shortened due to the word limit)
description: 17 pages, 6 figures, 2 tables (plus 5 figures in Appendix); v2 - Version accepted for publication in Physical Review C, with additional analysis on DD-TDHF in Appendix C
Can brane dark energy model be probed observationally by distant supernovae?
Creators: name: Szydlowski, Marek
name: Godlowski, Wlodzimierz
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The recent astronomical measurements of distant supernovae as well as other observations indicate that our universe is presently accelerating. There are different proposals for the explanation of this acceleration, such as the cosmological constant $Λ$, decaying vacuum energy, an evolving scalar field (quintessence), phantom energy, etc. Most of these proposals require the existence of exotic matter with negative pressure violating the strong energy condition. On the other hand, there have appeared many models which offer dramatically different mechanisms for the current acceleration, in which dark energy emerges from the gravity sector rather than from the matter sector. In this paper, we compare the concordance $Λ$CDM model with the Sahni-Shtanov brane-world models of dark energy by using the Akaike and Bayesian information criteria. We show that new parameters in the brane model are not statistically significant in terms of the information criteria, although the best fit method gives an improved fit to the SNIa data, because of the additional parameters. This is because the information criteria of model selection compensate for this advantage by penalizing models having more free parameters. We conclude that only new future observational data are accurate enough to give an advantage to dark-energy models of the brane origin, i.e., a very high-significance detection is required to justify the presence of new parameters. In our statistical analysis both Riess et al.'s and Astier et al.'s SNIa samples are used. For stringent constraining parameters of the models the baryon oscillation peak (BOP) test is used.
description: Improved version accepted for publication in PLB
Rough translation of file 009_A (collection LA 256)
Creators: name: Parker, Verdena
name: Lee-Wynant, Tyler
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: hup

description: Audio file VP-290318-06: Rough translation (minute-by-minute) of 009_A (tape 9, side A) from LA 256 (collection of recordings given to the Berkeley Language Center by Verdena), from 18:12 to 24:28 - no transcription in this session, translation only. Due to re-numbering, tape 009_A has been assigned to the CLA item number LA256.009, audio file LA256.009A.
The algebra of anomaly interplay
Creators: name: Davighi, Joe
name: Lohitsiri, Nakarin
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We give a general description of the interplay that can occur between local and global anomalies, in terms of (co)bordism. Mathematically, such an interplay is encoded in the non-canonical splitting of short exact sequences known to classify invertible field theories. We study various examples of the phenomenon in 2, 4, and 6 dimensions. We also describe how this understanding of anomaly interplay provides a rigorous bordism-based version of an old method for calculating global anomalies (starting from local anomalies in a related theory) due to Elitzur and Nair.
description: 55 pages, 10 figures. Added figure illustrating the construction of a nullbordism for the U(2) mapping torus; added explicit computations of the generators of various groups classifying local anomalies (for all 4d examples), together with the 6d bordism generators to which they are dual; other minor corrections and added references
ЧТО ТАКОЕ «ИННОВАЦИОННОЕ ОБУЧЕНИЕ» И В ЧЁМ ЕГО ОСОБЕННОСТИ
Creators: name: Алиева, Зарина
Publisher: name: Zenodo
Year: 2024

description: В статье идет речь о современном инновационном обучении, его эффективности при методике преподавания, новых педагогических технологиях в процессе обучения.
Braneworld Isotropization and Magnetic Fields
Creators: name: Niz, Gustavo
name: Padilla, Antonio
name: Kunduri, Hari K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider a magnetic Bianchi I braneworld, embedded in between two Schwarzschild-AdS spacetimes, boosted equal amounts in opposite directions and compare them to the analagous solution in four-dimensional General Relativity. The efficient dissipation of anisotropy on the brane is explicitly demonstrated, a process we dub braneworld isotropization. From the bulk point of view, we attribute this to anisotropic energy being carried into the bulk by hot gravitons leaving the brane. From the brane point of view this can be interpreted in terms of the production of particles in the dual CFT. We explain how this result enables us to gain a better understanding of the behaviour of anisotropic branes already studied in the literature. We also show how there is evidence of particles being over-produced, and comment on how this may ultimately provide a possible observational signature of braneworlds.
description: 21 pages, 3 figures
Real-time dynamics of Chern-Simons fluctuations near a critical point
Creators: name: Ikeda, Kazuki
name: Kharzeev, Dmitri E.
name: Kikuchi, Yuta
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The real-time topological susceptibility is studied in $(1+1)$-dimensional massive Schwinger model with a $θ$-term. We evaluate the real-time correlation function of electric field that represents the topological Chern-Pontryagin number density in $(1+1)$ dimensions. Near the parity-breaking critical point located at $θ=π$ and fermion mass $m$ to coupling $g$ ratio of $m/g \approx 0.33$, we observe a sharp maximum in the topological susceptibility. We interpret this maximum in terms of the growth of critical fluctuations near the critical point, and draw analogies between the massive Schwinger model, QCD near the critical point, and ferroelectrics near the Curie point.
description: 9 pages, 5 figures
TA'LIM VA INNOVATSIYA: MALAKALI KADRLAR TAYYORLASH YO'NALISHLARI
Creators: name: Xalimmetova R.D., Tursunaliyeva S.I.
Publisher: name: Zenodo
Year: 2025

description: Annotatsiya: Ushbu maqolada ta’lim va innovatsiya jarayonlari, malakali kadrlar tayyorlash yo’nalishlari va innavatsion rivojlanishning ahamiyati yoritilgan. Shuningdek, ilm-fan, ishlab chiqarish va ta’lim tizimining o’zaro bog’liqligi, mamlakatimizda amalga oshirilayotgan islohatlar va zamonaviy ta’lim tizimining o’ziga xos jihatlari tahlil qilingan.
Evaluation of Snowplowable Markers
Creators: name: Pigman, Jerry G.
name: Agent, Kenneth R.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1982
Subjects: subject: Transportation Engineering

description: The objective of this study was to evaluate available snowplowable markers under similar traffic and snowplowing operations. There were five different markers tested which included the following: 1) Stimsonite 96, 2) Dura-Brite, 3) recessed, 4) Kingray, and 5) Prismo Roadstud.  The Stimsonite 96, Dura-Brite, and recessed markers were found to be acceptable snowplowable markers. All three of these markers were found to have adequate reflectivity during both dry and wet nighttime conditions. This reflectivity was maintained over the test period and the markers proved to be durable when subjected to snowplow operations. However, considering all available input, the recessed marker is recommended as the most functional and cost-effective.
Gli studi umanistici in Russia e la svolta del 1917
Creators: name: Aleksej Kamenskich, Oksana Dovgopolova
Publisher: name: Università degli Studi di Milano
Year: 2016
Subjects: Studi umanistici; emigrazione russa; gesto esistenziale

description: Presentiamo la cronaca del seminario scientifico-didattico internazionale Gumanitarnaja škola v Rossii i perelom 1917 g.: èkzistenciajl’noe izmerenie / Humanities in Russia and the Break of 1917: the Existential Dimension, svolto nella filiale di Perm’ dell’Università di ricerca internazionale «Higher School of Economics» dal 25 al 28 agosto 2015.
 We present the chronicle of the international scientific-didactic seminar Gumanitarnaya shkola v Rossii i perelom 1917 g .: ekzistentsiajlnoe izmerenie / Humanities in Russia and the Break of 1917: the Existential Dimension, held in Perm filial of Narional Research University "Higher School of Economics» (25-28 August 2015).
description: ENTHYMEMA, No 13 (2015)
The X-ray Properties of M101 ULX-1 = CXOKM101 J140332.74+542102
Creators: name: Mukai, K.
name: Still, M.
name: Corbet, R. H. D.
name: Kuntz, K. D.
name: Barnard, R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report our analysis of X-ray data on M101 ULX-1, concentrating on high state Chandra and XMM-Newton observations. We find that the high state of M101 ULX-1 may have a preferred recurrence timescale. If so, the underlying clock may have periods around 160 or 190 days, or possibly around 45 days. Its short-term variations resemble those of X-ray binaries at high accretion rate. If this analogy is correct, we infer that the accretor is a 20-40 Msun object. This is consistent with our spectral analysis of the high state spectra of M101 ULX-1, from which we find no evidence for an extreme (> 10^40 ergs/s) luminosity. We present our interpretation in the framework of a high mass X-ray binary system consisting of a B supergiant mass donor and a large stellar-mass black hole.
description: 23 pages, 7 figures, accepted for publication in the Astrophysical Journal
Neutrino oscillations in matter: from microscopic to macroscopic description
Creators: name: Akhmedov, Evgeny
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Neutrino flavour transmutations in nonuniform matter are described by a Schrödinger-like evolution equation with coordinate-dependent potential. In all the derivations of this equation it is assumed that the potential, which is due to coherent forward scattering of neutrinos on matter constituents, is a continuous function of coordinate that changes slowly over the distances of the order of the neutrino de Broglie wavelength. This tacitly assumes that some averaging of the microscopic potential (which takes into account the discrete nature of the scatterers) has been performed.The averaging, however, must be applied to the microscopic evolution equation as a whole and not just to the potential. Such an averaging has never been explicitly carried out. We fill this gap by considering the transition from the microscopic to macroscopic neutrino evolution equation through a proper averaging procedure. We discuss some subtleties related to this procedure and establish the applicability domain of the standard macroscopic evolution equation. This, in particular, allows us to answer the question of when neutrino propagation in rarefied media (such as e.g.\ low-density gases or interstellar or intergalactic media) can be considered within the standard theory of neutrino flavour evolution in matter.
description: LaTeX, 20 pages. v2: a section on media with bulk currents and magnetization and an appendix section added; section 2 modified accordingly; reference added
The trispectrum of 21-cm background anisotropies as a probe of primordial non-Gaussianity
Creators: name: Cooray, Asantha
name: Li, Chao
name: Melchiorri, Alessandro
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The 21-cm anisotropies from the neutral hydrogen distribution prior to the era of reionization is a sensitive probe of primordial non-Gaussianity. Unlike the case with cosmic microwave background, 21-cm anisotropies provide multi-redshift information with frequency selection and is not damped at arcminute angular scales. We discuss the angular trispectrum of the 21-cm background anisotropies and discuss how the trispectrum signal generated by the primordial non-Gaussianity can be measured with the three-to-one correlator and the corresponding angular power spectrum. We also discuss the separation of primordial non-Gaussian information in the trispectrum with that generated by the subsequent non-linear gravitational evolution of the density field. While with the angular bispectrum of 21-cm anisotropies one can limit the second order corrections to the primordial fluctuations below f_NL< 1, using the trispectrum information we suggest that the third order coupling term, f_2 or g_NL, can be constrained to be arounde 10 with future 21-cm observations over the redshift interval of 50 to 100.
description: 12 pages, PRD submitted