cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Finite Range Effects in Energies and Recombination Rates of Three Identical Bosons
Creators: name: Sørensen, P. K.
name: Fedorov, D. V.
name: Jensen, A. S.
name: Zinner, N. T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate finite-range effects in systems with three identical bosons. We calculate recombination rates and bound state spectra using two different finite-range models that have been used recently to describe the physics of cold atomic gases near Feshbach resonances where the scattering length is large. The models are built on contact potentials which take into account finite range effects; one is a two-channel model and the other is an effective range expansion model implemented through the boundary condition on the three-body wave function when two of the particles are at the same point in space. We compare the results with the results of the ubiquitous single-parameter zero-range model where only the scattering length is taken into account. Both finite range models predict variations of the well-known geometric scaling factor 22.7 that arises in Efimov physics. The threshold value at negative scattering length for creation of a bound trimer moves to higher or lower values depending on the sign of the effective range compared to the location of the threshold for the single-parameter zero-range model. Large effective ranges, corresponding to narrow resonances, are needed for the reduction to have any noticeable effect.
description: 16 pages, 7 figures, published version
title: Finite element modelling of constant stress drained direct simple shear tests on sand for monotonic loading
Creators: name: Bhowmick, Sudipta
Publisher: name: Memorial University of Newfoundland
Year: 2023

description: Simple shear loading is commonly observed in many practical geotechnical engineering problems, and is considerably different from that applied in commonly used geotechnical laboratory tests, such as direct shear and triaxial tests. The simple shear loading conditions in laboratory specimens could be created in several ways; among them, the direct simple shear (DSS) test is apopularonebecause of simplicity of specimen preparation and testing. However, the interpretation of the test results is challenging because the stress state in the specimens cannot be properly evaluated, as typical DSS apparatus allows the measurement of only normal and shear stresses at the top or bottom surface. DSS tests show some different response in some cases; for example, there is less pronounced strain-softening of dense sand compared to that in triaxial tests. Moreover, empirical equations have been proposed based on experimental results, which might be used to estimate soil parameters such as angle of internal friction. Examining the response of soil elements in DSS specimens using Finite Element Method (FEM), it becomes possible to evaluate the complete behavior observed in the laboratory tests. In the present study, three-dimensional finite element (FE) simulation of DSS test is performed for stacked ring and Cambridge type apparatus. In the simulations, a normal stress is applied and then sheared monotonically by maintaining the same normal stress (constant stress test). Simulations are performed for medium and dense sands using the Mohr–Coulomb and a modified Mohr–Coulomb model that considers post-peak softening, respectively. FE results show that stresses are uniform in the central core of the specimen while considerable stress non-uniformity occurs near the boundaries. The stress state at the failure is neither on the point of stress obliquity nor on the maximum shear stress, which has been considered in some studies to calculate the friction angle. Interface resistance between soil and vertical surface(s) increase the stress ratio compared to smooth interface conditions.
Flexoelectric switching in cholesteric blue phases
Creators: name: Tiribocchi, A.
name: Cates, M. E.
name: Gonnella, G.
name: Marenduzzo, D.
name: Orlandini, E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present computer simulations of the response of a flexoelectric blue phase network, either in bulk or under confinement, to an applied field. We find a transition in the bulk between the blue phase I disclination network and a parallel array of disclinations along the direction of the applied field. Upon switching off the field, the system is unable to reconstruct the original blue phase but gets stuck in a metastable phase. Blue phase II is comparatively much less affected by the field. In confined samples, the anchoring at the walls and the geometry of the device lead to the stabilisation of further structures, including field-aligned disclination loops, splayed nematic patterns, and yet more metastable states. Our results are relevant to the understanding of the switching dynamics for a class of new, "superstable", blue phases which are composed of bimesogenic liquid crystals, as these materials combine anomalously large flexoelectric coefficients, and low or near-zero dielectric anisotropy.
description: 15 pages, 9 figures
title: A mixed duopoly in interbank payment services
Creators: name: Arango, Carlos A.
name: Betancourt-Garcia, Yanneth Rocio
Publisher: name: Graduate Institute of International and Development Studies
publisherIdentifier: https://ror.org/007ygn379
publisherIdentifierScheme: ROR
Year: 2022

description: Graduate Institute of International and Development Studies Working Paper ; no. 19/2022
title: РЕФОРМА ТРЕТЕЙСКОГО РАЗБИРАТЕЛЬСТВА В АСПЕКТЕ РАЗВИТИЯ ГРАЖДАНСКОГО ОБЩЕСТВА
title: REFORM OF ARBITRATION PROCEEDINGSIN TERMS OF CIVIL SOCIETY DEVELOPMENT
Creators: name: Чарковская, Ноэми Ивановна
Publisher: name: Издательский центр СурГУ
Year: 2019

description: В настоящей статье исследованы предпосылки реформы третейского разбирательства и ее итоги к настоящему времени в аспекте развития гражданского общества.
description: The article examines the background of the reform of the arbitration proceedings and its re-sults so far in terms of civil society development.
การพัฒนากิจกรรมเสริมความเป็นครูเพื่อเสริมสร้างสมรรถนะการจัดการเรียนรู้ที่บูรณาการอัตลักษณ์เชิงพื้นที่: กรณีศึกษาบ้านแม่ป๊อกบน อำเภอดอยเต่า จังหวัดเชียงใหม่
Creators: name: ฐิติมา ญาณะวงษา
Publisher: name: มหาวิทยาลัยราชภัฏเชียงใหม่
Year: 2021
Subjects: กิจกรรมเสริมความเป็นครู
สมรรถนะการจัดการเรียนรู้
Enhancing teacherness activities
Learning management competency

description: วารสารวิจัยราชภัฏเชียงใหม่, 22, 2, 154-172
Spectral features of Earth-like planets and their detectability at different orbital distances around F, G, and K-type stars
Creators: name: Hedelt, Pascal
name: von Paris, Philip
name: Godolt, Mareike
name: Gebauer, Stefanie
name: Grenfell, John Lee
name: Rauer, Heike
name: Schreier, Franz
name: Selsis, Franck
name: Trautmann, Thomas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We investigate the spectral appearance of Earth-like exoplanets in the HZ of different main sequence stars at different orbital distances. We furthermore discuss for which of these scenarios biomarker absorption bands may be detected during primary or secondary transit with near-future telescopes and instruments.We analyze the spectra taking into account different filter bandpasses of two photometric instruments planned to be mounted to the JWST. We analyze in which filters and for which scenarios molecular absorption bands are detectable when using the space-borne JWST or the ground-based telescope E-ELT. Absorption bands of CO2, H2O, CH4 and O3 are clearly visible in high-resolution spectra as well as in the filters of photometric instruments. However, only during primary eclipse bands of CO2, H2O and O3 are detectable for all scenarios when using photometric instruments and an E-ELT telescope setup. CH4 is only detectable at the outer HZ of the K star since here the atmospheric modeling results in very high abundances. Since the detectable CO2 and H2O bands overlap, separate bands need to be observed to prove their existence in the atmosphere. In order to detect H2O in a separate band, a S/N>7 needs to be achieved for E-ELT observations, e.g. by co-adding at least 10 transit observations. Using a spaceborne telescope like the JWST enables the detection of CO2 at 4.3mu, which is not possible for ground-based observations due to the Earth's atmospheric absorption. Hence combining observations of spaceborne and groundbased telescopes might allow to detect the presence of the biomarker molecule O3 and the related compounds H2O and CO2 in a planetary atmosphere. Other absorption bands using the JWST can only be detected for much higher S/Ns, which is not achievable by just co-adding transit observations since this would be far beyond the planned mission time of JWST.(abridged)
description: 15 pages, 8 figures
Perspectival attitudes and assertions
Creators: name: Lin, Lixiao
Publisher: name: The University of St Andrews
Year: 2023
Subjects: subject: De se attitude
subject: Taste assertion
subject: Centred world
subject: De se exceptionalism
subject: Acquaintance inference
subject: Impossible worlds
subject: BD348.L5
subject: Perspective (Philosophy)

description: This thesis examines two types of perspectival attitudes and assertions: those about oneself, such as "I am in Martyrs Kirk Library" or "my house is on fire", and those about matters of personal tastes, such as "Super Mario is a fun game" or "century eggs are disgusting". The aim of this thesis is to challenge some published arguments in favour of the relativist, centred-worlds framework for these attitudes and assertions and to offer novel explanations for relevant phenomena including the inferior status of testimony about taste matters, the acquaintance inference of taste assertions, the connection between de se attitudes and actions, and the non-reducibility of de se attitudes to non-de se attitudes. I argue that the centred-worlds framework is not a well-motivated framework for these two types of attitudes and assertions. In addition, I propose that taste assertions are governed by a special knowledge-why norm, and de se attitudes have impossible-worlds contents.
องค์ประกอบเครื่องมือทางการตลาดและแนวทางการพัฒนาสินค้าชุมชนในจังหวัดเชียงใหม่ยุคประชาคมเศรษฐกิจอาเซียน
Creators: name: ปะราสี เอนก
Publisher: name: มหาวิทยาลัยราชภัฏเชียงใหม่
Year: 2021
Subjects: เครื่องมือทางการตลาด
สินค้าชุมชน (โอทอป)
The Marketing components
Community products (OTOP)

description: วารสารวิจัยราชภัฏเชียงใหม่, 22, 2, 173-180
อิทธิพลของการใช้งานธุรกิจอิเล็กทรอนิกส์ที่ส่งผลต่อการดำเนินงานของวิสาหกิจขนาดกลางและขนาดย่อมในประเทศไทย
Creators: name: ธนาภิญญ์ อัตตฤทธิ์
Publisher: name: มหาวิทยาลัยราชภัฏเชียงใหม่
Year: 2021
Subjects: การประยุกต์ใช้ธุรกิจอิเล็กทรอนิกส์
ผลการดำเนินงาน
ธุรกิจขนาดกลางและขนาดย่อม
E- business adoption
Firm performance
SME

description: วารสารวิจัยราชภัฏเชียงใหม่, 22, 2, 181-196
Sima Roger 1863
Creators: name: Forel, A.
Publisher: name: L'Imprimerie Nationale
Year: 1891
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Sima

description: Genre SIMA.
Sima, Roger, Berliner entomologische Zeitschrift (1863).
[[worker]]. Corps long, grêle, filiforme; pédicule très allongé. Epistome non prolongé entre les articulations des antennes, tronqué devant; la troncature est dirigée d'avant en arrière et en bas; son bord supérieur est garni d'une rangée de cils. Antennes de douze articles. Pas d'aire frontale. En général trois ocelles. Métathorax mutique. Des éperons pectines à toutes les pattes.
[[queen]]. Comme la [[worker]]. Pronotum formant 1/4 1/4 à de la longueur du dos du thorax.
Ailes courtes avec deux cellules cubitales, une longue cellule discoïdale et une cellule radiale fermée, assez courte.
[[male]]. Beaucoup plus petit que la [[queen]] et plus petit que la [[worker]]. Antennes de douze articles, comme chez la [[queen]] et la [[worker]] (du moins chez la S. nigra); scape très court; premier article du funicule à peine plus long que large; les autres longs, cylindriques, subégaux. Mandibules courtes, épaisses, à bord terminal denté. Epistome non tronqué; aire frontale distincte. Dos du pronotum plus court que chez la [[queen]], mais disposé horizontalement, comme chez elle. Valvules génitales extérieures fort grandes, fort convexes en dehors, triangulaires-arrondies. Forme générale du corps comme chez la [[worker]] et la [[queen]]. Seconde cellule cubitale plus petite que chez la 9.
description: Published as part of Forel, A., 1891, Histoire naturelle des Hymenopteres. Deuxieme partie: Les Formicides., pp. 1-231 in Histoire Physique, Naturelle et Politique de Madagascar., Paris :L'Imprimerie Nationale on page 202, DOI: 10.5281/zenodo.9896
Photometry of the eclipsing cataclysmic variable SDSS J152419.33+220920.0
Creators: name: Michel, R.
name: Echevarria, J.
name: Hernandez-Santisteban, J. V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Aims. We present new photometry of the faint and poorly studied cataclysmic variable SDSS J152419.33+220920.0, analyze its light curve and provide an accurate ephemeris for this system. Methods. Time-resolved CCD differential photometry was carried out using the 1.5m and 0.84m telescopes at the Observatorio Astronomico Nacional at San Pedro Martir. Results. From time-resolved photometry of the system obtained during six nights (covering more than twenty primary eclipse cycles in more than three years), we show that this binary presents a strong primary and a weak secondary modulation. Our light curve analysis shows that only two fundamental frequencies are present, corresponding to the orbital period and a modulation with twice this frequency. We determine the accurate ephemeris of the system to be HJD(eclipse)= 2454967.6750(1) + 0.06531866661(1) E. A double-hump orbital period modulation, a standing feature in several bounce-back systems at quiescence, is present at several epochs. However, we found no other evidence to support the hypothesis that this system belongs to the post-minimum orbital-period systems.
Local potential approximation for the renormalization group flow of fermionic field theories
Creators: name: Jakovac, A.
name: Patkos, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The second functional derivative of the effective potential of pure fermionic field theories is rewritten in a factorized form which facilitates the evaluation of the renormalisation flow rate of the effective action in the Wetterich equation. It is applied to the Local Potential Approximation in cases, when the effective potential depends on scalar composites built from the fermions. The procedure is demonstrated explicitly on the example of the $N_f$-flavor Gross-Neveu model and the one-flavor chiral Nambu--Jona-Lasinio model.
description: 16 pages, title changed, typos corrected, version published in PRD
A Proposal for An Effective Anti-Child Poverty Programme in Vietnam
Creators: name: Nguyen, Anh
Publisher: name: Zenodo
Year: 2021
Subjects: child poverty
social policy
Vietnam

description: This paper aims to gain insight into the types of strategies Vietnam can employ to improve its anti-poverty programme on children. Thanks to various economic reforms since the late 1980s, Vietnam has substantially decreased its poverty rates measured at international and national poverty line. Despite these positive changes through targeted anti-poverty programmes, child poverty rate in Vietnam remains high, with children of ethnic minority groups and/or from disadvantaged geographic locations disproportionately affected by poverty. Therefore, this paper attempts to explore different strategies applicable to the case of Vietnam to improve the impacts of its anti-child poverty programme. By reviewing relevant theories on anti-poverty policies and examining the impacts of two successful anti-poverty cash transfer programmes – Mexico’s Prospera and Brazil’s Bolsa Família, the paper argues that only a child-focused and ethnicity-sensitive approach which includes both a demand-side policy and a supply-side policy is effective to tackle child poverty in Vietnam.
Noncommutative field theories on $R^3_λ$: Towards UV/IR mixing freedom
Creators: name: Vitale, Patrizia
name: Wallet, Jean-Christophe
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider the noncommutative space $\mathbb{R}^3_λ$, a deformation of the algebra of functions on $\mathbb{R}^3$ which yields a "foliation" of $\mathbb{R}^3$ into fuzzy spheres. We first construct a natural matrix base adapted to $\mathbb{R}^3_λ$. We then apply this general framework to the one-loop study of a two-parameter family of real-valued scalar noncommutative field theories with quartic polynomial interaction, which becomes a non-local matrix model when expressed in the above matrix base. The kinetic operator involves a part related to dynamics on the fuzzy sphere supplemented by a term reproducing radial dynamics. We then compute the planar and non-planar 1-loop contributions to the 2-point correlation function. We find that these diagrams are both finite in the matrix base. We find no singularity of IR type, which signals very likely the absence of UV/IR mixing. We also consider the case of a kinetic operator with only the radial part. We find that the resulting theory is finite to all orders in perturbation expansion.
description: 31 pages, 4 figures. Improved version. Sections 5.1 and 5.2 have been clarified. A minor error corrected. References added
Product Breakdown Structure
Creators: name: Roy, Ghislain
name: Zimmermann, Frank
Publisher: name: Zenodo
Year: 2021
Subjects: FCC,FCCIS,Collider Element Structure

description: The Product Breakdown Structure (PBS) of the Future Circular Collider (FCC) is presented. The first instance of the PBS is described in its current format, and the plans to further develop the PBS in the coming months and years are outlined.
Phase transitions in general gravity theories
Creators: name: Camanho, Xian O.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Phase transitions between two competing vacua of a given theory are quite common in physics. We discuss how to construct the space-time solutions that allow the description of phase transitions between different branches (or asymptotics) of a given higher curvature gravity theory at finite temperature.
description: 4 pages, 1 figure, Contribution to the Conference Proceedings of the Spanish Relativity Meeting in Portugal (ERE2012)
A Minimally-Resolved Immersed Boundary Model for Reaction-Diffusion Problems
Creators: name: Bhalla, A. Pal Singh
name: Griffith, B. E.
name: Patankar, N. A.
name: Donev, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We develop an immersed-boundary approach to modeling reaction-diffusion processes in dispersions of reactive spherical particles, from the diffusion-limited to the reaction-limited setting. We represent each reactive particle with a minimally-resolved 'blob' using many fewer degrees of freedom per particle than standard discretization approaches. More complicated or more highly resolved particle shapes can be built out of a collection of reactive blobs. We demonstrate numerically that the blob model can provide an accurate representation at low to moderate packing densities of the reactive particles, at a cost not much larger than solving a Poisson equation in the same domain. Unlike multipole expansion methods, our method does not require analytically-computed Green's functions, but rather, computes regularized discrete Green's functions on the fly by using a standard grid-based discretization of the Poisson equation. This allows for great flexibility in implementing different boundary conditions, coupling to fluid flow or thermal transport, and the inclusion of other effects such as temporal evolution and even nonlinearities. We develop multigrid-based preconditioners for solving the linear systems that arise when using implicit temporal discretizations or studying steady states. In the diffusion-limited case the resulting linear system is a saddle-point problem, the efficient solution of which remains a challenge for suspensions of many particles. We validate our method by comparing to published results on reaction-diffusion in ordered and disordered suspensions of reactive spheres.
description: Submitted to J.Chem.Phys
SIR epidemics with long range infection in one dimension
Creators: name: Grassberger, Peter
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We study epidemic processes with immunization on very large 1-dimensional lattices, where at least some of the infections are non-local, with rates decaying as power laws p(x) ~ x^{-sigma-1} for large distances x. When starting with a single infected site, the cluster of infected sites stays always bounded if $σ>1$ (and dies with probability 1, of its size is allowed to fluctuate down to zero), but the process can lead to an infinite epidemic for sigma <1. For sigma <0 the behavior is essentially of mean field type, but for 0 < sigma <= 1 the behavior is non-trivial, both for the critical and for supercritical cases. For critical epidemics we confirm a previous prediction that the critical exponents controlling the correlation time and the correlation length are simply related to each other, and we verify detailed field theoretic predictions for sigma --> 1/3. For sigma = 1 we find generic power laws with continuously varying exponents even in the supercritical case, and confirm in detail the predicted Kosterlitz-Thouless nature of the transition. Finally, the mass N(t) of supercritical clusters seems to grow for 0 < sigma < 1 like a stretched exponential. The latter implies that networks embedded in 1-d space with power-behaved link distributions have infinite intrinsic dimension (based on the graph distance), but are not small world.
description: 16 pages, including 28 figures; minor changes from version v2
Tracking Emission Rate Dynamics of NV Centers in Nanodiamonds
Creators: name: Inam, Faraz A
name: Edmonds, Andrew M
name: Steel, Michael J
name: Castelletto, Stefania
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Spontaneous emission from crystal centers is influenced by both the photonic local density of states and non-radiative processes. Here we monitor the spontaneous emission of single nitrogen vacancy (NV) centers as their host diamond is reduced in size from a large monolithic crystal to a nanocrystal by successive cycles of oxidation. The size reduction induces a quenching of the NV radiative emission. New non-radiative channels lead to a decrease of the fluorescence intensity and the excited state lifetime. In one case we observe the onset of blinking which may provide a route to understand these additional non-radiative decay channels.
description: 6 pages, 4 figures
Random Intersection Trees
Creators: name: Shah, Rajen Dinesh
name: Meinshausen, Nicolai
Publisher: name: arXiv
Year: 2013
Subjects: subject: Machine Learning (stat.ML)
subject: Computation (stat.CO)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Finding interactions between variables in large and high-dimensional datasets is often a serious computational challenge. Most approaches build up interaction sets incrementally, adding variables in a greedy fashion. The drawback is that potentially informative high-order interactions may be overlooked. Here, we propose at an alternative approach for classification problems with binary predictor variables, called Random Intersection Trees. It works by starting with a maximal interaction that includes all variables, and then gradually removing variables if they fail to appear in randomly chosen observations of a class of interest. We show that informative interactions are retained with high probability, and the computational complexity of our procedure is of order $p^κ$ for a value of $κ$ that can reach values as low as 1 for very sparse data; in many more general settings, it will still beat the exponent $s$ obtained when using a brute force search constrained to order $s$ interactions. In addition, by using some new ideas based on min-wise hash schemes, we are able to further reduce the computational cost. Interactions found by our algorithm can be used for predictive modelling in various forms, but they are also often of interest in their own right as useful characterisations of what distinguishes a certain class from others.
description: 23 pages, 4 figures
Grabungen im Limeskastell Echzell
Creators: name: Baatz, Dietwulf
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2023

description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 41 Nr. 2 (1963)
Rate of mutual information between coarse-grained non-Markovian variables
Creators: name: Barato, Andre Cardoso
name: Hartich, David
name: Seifert, Udo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The problem of calculating the rate of mutual information between two coarse-grained variables that together specify a continuous time Markov process is addressed. As a main obstacle, the coarse-grained variables are in general non-Markovian, therefore, an expression for their Shannon entropy rates in terms of the stationary probability distribution is not known. A numerical method to estimate the Shannon entropy rate of continuous time hidden-Markov processes from a single time series is developed. With this method the rate of mutual information can be determined numerically. Moreover, an analytical upper bound on the rate of mutual information is calculated for a class of Markov processes for which the transition rates have a bipartite character. Our general results are illustrated with explicit calculations for four-state networks.
description: 17 pages, 7 figures
Semiclassical black holes expose forbidden charges and censor divergent densities
Creators: name: Brustein, Ram
name: Medved, A. J. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Classically, the black hole (BH) horizon is a rigid surface of infinite redshift; whereas the uncertainty principle dictates that the semiclassical (would-be) horizon cannot be fixed in space nor can it exhibit any divergences. We propose that this distinction underlies the BH information-loss paradox, the apparent absence of BH hair, the so-called trans-Planckian problem and the recent "firewall" controversy. We argue that the correct prescription is to first integrate out the fluctuations of the background geometry and only then evaluate matter observables. The basic idea is illustrated using a system of two strongly coupled harmonic oscillators, with the heavier oscillator representing the background. We then apply our proposal to matter fields near a BH horizon, initially treating the matter fields as classical and the background as semiclassical. In this case, the average value of the associated current does not vanish; so that it is possible, in principle, to measure the global charge of the BH. Then the matter is, in addition to the background, treated quantum mechanically. We show that the average energy density of matter as seen by an asymptotic observer is finite and proportional to the BH entropy, rather than divergent. We discuss the implications of our results for the various controversial issues concerning BH physics.
description: 44 pages
Ultraviolet Extinction at High Galactic Latitudes
Creators: name: Peek, J. E. G.
name: Schiminovich, David
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In order to study the properties and effects of high Galactic latitude dust we present an analysis of 373,303 galaxies selected from the Galaxy Evolution Explorer (GALEX) All-Sky Survey and Wide-Field Infrared Explorer (WISE) All-Sky Data Release. By examining the variation in aggregate ultraviolet colors and number density of these galaxies we measure the extinction curve at high latitude. We additionally consider a population of spectroscopically selected galaxies from the Sloan Digital Sky Survey (SDSS) to measure extinction in the optical. We find that dust at high latitude is neither quantitatively nor qualitatively consistent with standard reddening laws. Extinction in the FUV and NUV is ~10% and ~35% higher than expected, with significant variation across the sky. We find that no single R_V parameter fits both the optical and ultraviolet extinction at high latitude, and that while both show detectable variation across the sky, these variations are not related. We propose that the overall trends we detect likely stem from an increase in very small silicate grains in the ISM.
description: 12 pages, 10 figures, Accepted to the ApJ
Simplified bond-hyperpolarizability model of second-harmonic-generation in Si(111): theory and experiment
Creators: name: Hardhienata, Hendradi
name: Prylepa, Andrii
name: Stifter, David
name: Hingerl, Kurt
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Second-harmonic-generation (SHG) in centrosymmetric material such as Si(111) is usually understood either from the phenomenology theory or more recently using the Simplified Bond-Hyperpolarizability Model (SBHM) [G. D. Powell, J. F. Wang, and D. E. Aspnes, Phys. Rev. B 65, 205320/1 (2002)]. Although SBHM is derived from a classical point of view, it has the advantage over the former that it gives-especially for lower symmetry systems- a clear physical picture and a more efficient explanation of how nonlinearity is generated. In this paper we provide a step-by-step description of the SBHM in Si(111) for the linear and second harmonic case. We present a SHG experiment of Si(111) and show how it can be modelled by summing up the contribution of the fields produced by the anharmonic motion along the bonds.
description: ACCEPTED to be published in the The Journal of Physics: Conference Series, 2013 International Conference on Science & Engineering in Mathematics, Chemistry and Physics (ScieTech 2013)
Improving Brownian approximations for boundary crossing problems
Creators: name: Keener, Robert
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Donsker's theorem shows that random walks behave like Brownian motion in an asymptotic sense. This result can be used to approximate expectations associated with the time and location of a random walk when it first crosses a nonlinear boundary. In this paper, correction terms are derived to improve the accuracy of these approximations.
description: Published in at http://dx.doi.org/10.3150/11-BEJ396 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Binary decision making with very heterogeneous influence
Creators: name: Lucas, Andrew
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We consider an extension of a binary decision model in which nodes make decisions based on influence-biased averages of their neighbors' states, similar to Ising spin glasses with on-site random fields. In the limit where these influences become very heavy-tailed, the behavior of the model dramatically changes. On complete graphs, or graphs where nodes with large influence have large degree, this model is characterized by a new "phase" with an unpredictable number of macroscopic shocks, with no associated critical phenomena. On random graphs where the degree of the most influential nodes is small compared to population size, a predictable glassy phase without phase transitions emerges. Analytic results about both of these new phases are obtainable in limiting cases. We use numerical simulations to explore the model for more general scenarios. The phases associated with very influential decision makers are easily distinguishable experimentally from a homogeneous influence phase in many circumstances, in the context of our simple model.
description: 19 pages, 7 figures; v2: published version
title: ВЗАИМОСВЯЗЬ МЕЖДУ УБОЙНЫМИ И МИКРОСТРУКТУРНЫМИ  ПОКАЗАТЕЛЯМИ МЯСНОЙ ПРОДУКТИВНОСТИ У МОЛОДНЯКА ОВЕЦ  СЕВЕРОКАВКАЗСКОЙ МЯСО-ШЕРСТНОЙ ПОРОДЫ
title: RELATIONSHIP BETWEEN SLAUGHTER AND MICROSTRUCTURAL INDICE OF MEAT PRODUCTIVITY IN YOUNG SHEEP OF THE NORTH CAUCASIAN MEAT AND WOOL BREED
Creators: name: Гайдашов, С.И.
name: Омаров, А.А.
Publisher: name: ФГБНУ "Северо-Кавказский федеральный научный аграрный центр"
Year: 2019

description: Одним из существенных  и научно обоснованных приемов увеличения мясной продуктивности овец является скрещивание маток отечественных пород с баранами лучших мясных пород мирового генофонда. Помесный молодняк от такого скрещивания, при создании определенных условий кормления, уже в первом поколении наследует хорошие мясные качества от отцовской породы. К сожалению, в стадах племенных овец, в частности северокавказской мясо-шерстной породы, где скрещивание недопустимо, улучшение мясной продуктивности  возможно лишь методами внутрипородной селекции. В процессе научно-производственного эксперимента установлено, что у баранчиков  второй группы парная туша составила 26,0 кг, что выше показателей сверстников от других вариантов подбора на 0,5-1,3 кг, или 2,2-5,5%. Полученные данные свидетельствуют о том, что овцы северокавказской мясо-шерстной породы характеризуются хорошими показателями мясной продуктивности. Но на сегодняшний день, помимо количественных показателей мясной продуктивности, немаловажное значение имеет и качество мясной продукции. В связи с этим, изучение взаимосвязи убойных показателей овец с микроструктурой мяса у молодняка северокавказской мясо-шерстной породы представляется нам весьма актуальным.
description: One of the essential and scientifically grounded methods for increasing meat productivity of sheep is crossbreeding of ewes from domestic breeds with rams of the best meat breeds of the world gene pool. Ahybrid sheep young from such a cross in the creation of certain conditions of feeding, already in the first generation inherits good meat qualities from its poternal breed. Unfortunately, in the herds of breeding sheep, in particular the North Caucasian meat and wool breed, where crossbreeding is unacceptable, the improvement of meat productivity is possible only by methods of inbreeding. In the process of scientific and industrial experiment, it was found that the weight of the fresh carcass in young rams of group II was 2,0 kg, which is 0,5-1,3 kg, or 2,2-5,5% more than that in herd mates from other selection variants. The data obtained indicate that the sheep of the North Caucasian meat and wool breed are characterized by good indice of meat productivity. But today, in addition to quantitative indice of meat productivity, the quality of meat products is also important. In this regard, the study of the relationship of slaughter indice in sheep with the microstructure of meat in young animals of the North Caucasian meat-wool breed seems to us very relevant.
Interpretation of twisting type N vacuum solutions with cosmological constant
Creators: name: Zhang, Xuefeng
name: Finley, Daniel
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate a new class of twisting type N vacuum solutions with nonzero (positive) cosmological constant Lambda by studying the equations of geodesic deviations along the privileged radial timelike geodesics, generalizing J. Bicak and J. Podolsky's results on non-twisting type N solutions. It is shown that these twisting radiative spacetimes can be interpreted as exact transverse gravitational waves propagating in the de-Sitter universe, with a distinctive feature that all the wave amplitudes are proportional to Lambda (dark energy/matter source coupling). Moveover, we demonstrate the cosmic no-hair conjecture in these spacetimes and discuss their Killing horizons.
description: 12 pages
Meiocarpidium Engl. & Diels, Notizbl. Koenigl. Bot. Gart. Berlin 3: 54 1900
Creators: name: Couvreur, Thomas L. P.
name: Dagallier, Leo-Paul M. J.
name: Crozier, Francoise
name: Ghogue, Jean-Paul
name: Hoekstra, Paul H.
name: Kamdem, Narcisse G.
name: Johnson, David M.
name: Murray, Nancy A.
name: Sonke, Bonaventure
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Magnoliales
Annonaceae
Meiocarpidium

description: Meiocarpidium Engl. & Diels, Notizbl. Königl. Bot. Gart. Berlin 3: 54, 1900 Type species. Meiocarpidium oliverianum (Baillon) D.M.Johnson & N.A.Murray Description. Same as species. A monotypic genus from the Central Atlantic African region (Lower Guinea). Meiocarpidium is characterized by the presence of peltate scale-like hairs, a character unique among Central African Annonaceae. Taxonomy. Le Thomas (1969b).
description: Published as part of Couvreur, Thomas L. P., Dagallier, Leo-Paul M. J., Crozier, Francoise, Ghogue, Jean-Paul, Hoekstra, Paul H., Kamdem, Narcisse G., Johnson, David M., Murray, Nancy A. & Sonke, Bonaventure, 2022, Flora of Cameroon - Annonaceae Vol 45, pp. 1-532 in PhytoKeys 207 on pages 159-160, DOI: 10.3897/phytokeys.207.61432
description: {"references": ["Le Thomas, A, 1969b. Annonacees. In: Aubreville, A, Ed., Flore du Gabon. Museum National d'Histoire Naturelle, Paris: 1 - 371"]}
Hadronic and radiative decays of the tau lepton
Creators: name: Roig, Pablo
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This PhD thesis studies some hadronic and radiative decays of the tau lepton using a Chiral Lagrangian including resonance fields. After a theoretical introduction, the decays to the $(πππ)^-$, $(KKπ)^-$ and $η^{(\prime)} π^- π^0$ hadronic states and $τ\to (π/K)^- γν_tau$ are analysed. Some material, which was not included in the corresponding references, is also discussed: The structure functions analysis for the 3 pion modes, the differential decay width as a function of the two-particle invariant masses in the considered three-meson modes and a simplified study of the $τ\to$η^{(\prime)} π^- π^0 ν_tau$ processes within a single-angle mixing scheme for the $η$ and $η^\prime$ mesons.
description: PhD Thesis. Universitat de Val\`encia, November 2010. PhD Advisor: J. Portol\'es
Canonoid transformations and master symmetries
Creators: name: Cariñena, José F.
name: Falceto, Fernando
name: Rañada, Manuel F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 70H15, 53D22, 37J05, 37J15,

description: Different types of transformations of a dynamical system, that are compatible with the Hamiltonian structure, are discussed making use of a geometric formalism. Firstly, the case of canonoid transformations is studied with great detail and then the properties of master symmetries are also analyzed. The relations between the existence of constants of motion and the properties of canonoid symmetries is discussed making use of a family of boundary and coboundary operators.
การพัฒนาแอปพลิเคชันความเป็นจริงเสริมเกี่ยวกับการเพาะปลูกพืชเศรษฐกิจ กรณีศึกษาพื้นที่เทศบาลเมืองเมืองแกนพัฒนา อำเภอแม่แตง จังหวัดเชียงใหม่
Creators: name: รสลิน  เพตะกร
Publisher: name: มหาวิทยาลัยราชภัฏเชียงใหม่
Year: 2021
Subjects: ความเป็นจริงเสริม
การเพาะปลูกพืชเศรษฐกิจ
แอปพลิเคชัน
Augmented reality
Crop cultivation
Application

description: วารสารวิจัยราชภัฏเชียงใหม่, 22, 2, 197-210
Properties of the most metal-poor gas-rich LSB dwarf galaxies SDSS J0015+0104 and J2354-0005 residing in the Eridanus void
Creators: name: Pustilnik, S. A.
name: Martin, J. -M.
name: Lyamina, Y. A.
name: Kniazev, A. Y.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: SDSS J0015+0104 is the lowest metallicity low surface brightness dwarf (LSBD) galaxy known. The oxygen abundance in its HII region SDSS J001520.70+010436.9 (at ~1.5 kpc from the galaxy centre) is 12+log(O/H)=7.07 (Guseva et al.). This galaxy, at the distance of 28.4 Mpc, appears to reside deeply in the volume devoid of luminous massive galaxies, known as the Eridanus void. SDSS J235437.29-000501.6 is another Eridanus void LSBD galaxy, with parameter 12+log(O/H)=7.36 (also Guseva et al.). We present the results of their HI observations with the Nancay Radio Telescope revealing their high ratios of M(HI)/L_B ~2.3. Based on the Sloan Digital Sky Survey images, we derived for both galaxies their radial surface brightness profiles and the main photometric parameters. Their colours and total magnitudes are used to estimate the galaxy stellar mass and ages. The related gas mass-fractions, f_g ~0.98 and ~0.97, and the extremely low metallicities (much lower than for their more typical counterparts with the same luminosity) indicate their unevolved status. We compare these Eridanus void LSBDs with several extreme LSBD galaxies residing in the nearby Lynx-Cancer void. Based on the combination of all their unusual properties, the two discussed LSBD galaxies are similar to the unusual LSBDs residing in the closer void. This finding presents additional evidence for the existence in voids of a4 figures, sizable fraction of low-mass unevolved galaxies. Their dedicated search might result in the substantial increase of the number of such objects in the local Universe and in the advancement of understanding their nature.
description: 8 pages, 4 figures, 2 tables, accepted to MNRAS 02.04.2013. arXiv admin note: text overlap with arXiv:0909.1349
Probing PeV scale SUSY-breaking with Satellite Galaxies and Primordial Gravitational Waves
Creators: name: Choi, Gongjun
name: Jinno, Ryusuke
name: Yanagida, Tsutomu T.
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2021
Subjects: supersymmetry, symmetry breaking
entropy, production
gravitino, mass
gravitational radiation, primordial
mass, gravitation
satellite
galaxy
inflation
suppression

description: We study an inevitable cosmological consequence in PeV scale SUSY-breaking scenarios. We focus on the SUSY-breaking scale corresponding to the gravitino mass $m_{3/2}=100{\rm eV}-1{\rm keV}$. We argue that the presence of an early matter-dominated era and the resulting entropy production are requisite for the Universe with this gravitino mass. We infer the model-independent minimum amount of the entropy production $\Delta$ by requiring that the number of dwarf satellite galaxies $N_{\rm sat}$ in the Milky Way exceed the currently observed value, i.e. $N_{\rm sat}\gtrsim63$. This entropy production is inevitably imprinted on the primordial gravitational waves (pGWs) produced during the inflationary era. We study how the information on the value of $\Delta$ and the time of entropy production are encoded in the pGW spectrum $\Omega_{\rm GW}(f_{\rm GW})$. In the case where the future GW surveys do not see any suppression in the pGW spectrum for the frequency range $\mathcal{O}(10^{-10}){\rm Hz}\lesssim f_{\rm GW}\lesssim\mathcal{O}(10^{-5}){\rm Hz}$, our study can be used to rule out all the PeV scale SUSY-breaking scenarios.
Around the Petty theorem on equilateral sets
Creators: name: Kobos, Tomasz
Publisher: name: arXiv
Year: 2013
Subjects: subject: Metric Geometry (math.MG)
subject: Combinatorics (math.CO)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46B85, 46B20, 52C17, 52A15, 52A20

description: The main goal of this paper is to provide an alternative proof of the following theorem of Petty: in the normed space of dimension at least three, every 3-element equilateral set can be extended to a 4-element equilateral set. Our approach is based on the result of Kramer and Németh about inscribing a simplex into a convex body. To prove the theorem of Petty, we shall also establish that for every 3 points in the normed plane, forming an equilateral set of the common distance $p$, there exists a fourth point, which is equidistant to the given points with the distance not larger than $p$. We will also improve the example given by Petty and obtain the existence of a smooth and strictly convex norm in $\mathbb{R}^n$, which contain a maximal 4-element equilateral set. This shows that the theorem of Petty cannot be generalized to higher dimensions, even for smooth and strictly convex norms.
description: 12 pages, 1 figure
A note on obstinate tachyons in classical dS solutions
Creators: name: Danielsson, Ulf H.
name: Shiu, Gary
name: Van Riet, Thomas
name: Wrase, Timm
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The stabilisation of the dilaton and volume in tree-level flux compactifications leads to model independent and thus very powerful existence and stability criteria for dS solutions. In this paper we show that the sizes of cycles wrapped by orientifold planes are scalars whose scalings in the potential are not entirely model independent, but enough to entail strong stability constraints. For all known dS solutions arising from massive IIA supergravity flux compactifications on SU(3)-structure manifolds the tachyons are exactly within the subspace spanned by the dilaton, the total volume and the volumes of the orientifold cycles. We illustrate this in detail for the well-studied case of the O6 plane compactification on SU(2)xSU(2)/Z_2xZ_2. For that example we uncover another novel structure in the tachyon spectrum: the dS solutions have a singular, but supersymmetric, Minkowski limit, in which the tachyon exactly aligns with the sgoldstino.
description: 22 pages; v2: added references, minor changes
title: ОЦЕНКА ТОВАРНОЙ МАССЫ ШЕРСТИ ОВЕЦ КАВКАЗСКОЙ ПОРОДЫ
Creators: name: Шумаенко, С.Н.
Publisher: name: ФГБНУ "Северо-Кавказский федеральный научный аграрный центр"
Year: 2019

description: В статье приводится анализ товарной массы шерсти овец кавказской породы. В ЗАО «Племзавод им. Героя Соцтруда В.В. Калягина» средний настриг мытой шерсти на 1 остриженную голову составляет 3,1 кг при выходе чистого волокна 59,5% и характеризует генетический потенциал, который позволяет совершенствовать стадо для достижения более высоких показателей. Установлено, что произведено 7778 кг немытой тонкой шерсти хорошего качества. Сортировка товарной массы шерстяного сырья показывает, что 89,1% шерсти отнесено к рунной шерсти и 10,9% составляют низшие сорта. Выявлено, что произведенная шерсть по состоянию имеет дифференциацию: «МЗ» – 70,2%, «СП» – 28,7% и «НС» - 0,6%. По результатам сертификации установлено, что средняя тонина шерсти составляет 22,51 мкм, длина – 77,55 см и выход шерсти – 54,06%.