cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Majorana and Majorana-Weyl fermions in lattice gauge theory
Creators: name: Inagaki, Teruaki
name: Suzuki, Hiroshi
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In various dimensional Euclidean lattice gauge theories, we examine a compatibility of the Majorana decomposition and the charge conjugation property of lattice Dirac operators. In $8n$ and $1+8n$ dimensions, we find a difficulty to decompose a classical lattice action of the Dirac fermion into a system of the Majorana fermion and thus to obtain a factorized form of the Dirac determinant. Similarly, in $2+8n$ dimensions, there is a difficulty to decompose a classical lattice action of the Weyl fermion into a system of the Majorana--Weyl fermion and thus to obtain a factrized form of the Weyl determinant. Prescriptions based on the overlap formalism do not remove these difficulties. We argue that these difficulties are reflections of the global gauge anomaly associated to the real Weyl fermion in $8n$ dimensions. For this reason (besides other well-known reasons), a lattice formulation of the N=1 super Yang--Mills theory in these dimensions is expected to be extremely difficult to find.
description: 29 pages, uses JHEP3.cls, the final version to appear in JHEP
Magnitude and direction of the local interstellar magnetic field inferred from Voyager 1 and 2 interstellar data and global heliospheric model
Creators: name: Izmodenov, Vladislav V.
name: Alexashov, Dmitry B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Space Physics (physics.space-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this Letter, we provide constraints on the direction and magnitude of the pristine (i.e., unperturbed by the interaction with the Sun) local interstellar magnetic field. The constraints are based on analysis of the interstellar magnetic field components at the heliopause measured by magnetometer instruments on board Voyager 1 and 2 spacecraft. The analysis was performed with the help of our kinetic-magnetohydrodynamical (MHD) model of the global heliosphere. The model shows that the solar-induced disturbances of the interstellar magnetic field are extended relatively far from the Sun up to 400-500 AU. The field is draped around the heliopause and compressed. By comparison of the model results with Voyager data we found that the model provides results comparable with the data for the interstellar magnetic field of $B_{LISM}$ = 3.7-3.8 $μ$G in magnitude and directed towards $\approx$125$^\circ$ in longitude, and $\approx$37$^\circ$ in latitude in the heliographic inertial (HGI) coordinate system.
description: 5 pages + 2 appendixes
Graindell
Creators: name: Villanueva, Rene O.
name: Abos, Redge A.
name: Villanueva, Rene O.
name: Abos, Redge A.
Publisher: name: Unknown
Year: 2002
Subjects: Teaching/Communication/Extension/Profession

description: The story of Graindell, the "planetoid shaped like an eye", is about the friendship and adventures of two boys, Abu and Thor, who made their dreams come true through hard work, industry, and altruism, and by standing up for their principles. IRRI's hope is that this book will make our young and old readers appreciate the scientific effort that goes into producing better-yielding, better-growing, and better-tasting jolly grain for all the rice-eating people of planet Earth.
Precision frequency measurement of visible intercombination lines of strontium
Creators: name: Ferrari, G.
name: Cancio, P.
name: Drullinger, R.
name: Giusfredi, G.
name: Poli, N.
name: Prevedelli, M.
name: Toninelli, C.
name: Tino, G. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report the direct frequency measurement of the visible 5s$^2$ $^1$S$_0$-5s 5p$^3$P$_1$ intercombination line of strontium that is considered a possible candidate for a future optical frequency standard. The frequency of a cavity-stabilized laser is locked to the saturated fluorescence in a thermal Sr atomic beam and is measured with an optical-frequency comb-generator referenced to the SI second through a GPS signal. The $^{88}$Sr transition is measured to be at 434 829 121 311 (10) kHz. We measure also the $^{88}$Sr-$^{86}$Sr isotope shift to be 163 817.4 (0.2) kHz.
description: 4 pages, 4 figures. To be published on Phys. Rev. Lett. To be published on Phys. Rev. Lett
SCONCE: A cosmic web finder for spherical and conic geometries
Creators: name: Zhang, Yikun
name: de Souza, Rafael S.
name: Chen, Yen-Chi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Applications (stat.AP)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The latticework structure known as the cosmic web provides a valuable insight into the assembly history of large-scale structures. Despite the variety of methods to identify the cosmic web structures, they mostly rely on the assumption that galaxies are embedded in a Euclidean geometric space. Here we present a novel cosmic web identifier called SCONCE (Spherical and CONic Cosmic wEb finder) that inherently considers the 2D (RA,DEC) spherical or the 3D (RA,DEC,$z$) conic geometry. The proposed algorithms in SCONCE generalize the well-known subspace constrained mean shift (SCMS) method and primarily address the predominant filament detection problem. They are intrinsic to the spherical/conic geometry and invariant to data rotations. We further test the efficacy of our method with an artificial cross-shaped filament example and apply it to the SDSS galaxy catalogue, revealing that the 2D spherical version of our algorithms is robust even in regions of high declination. Finally, using N-body simulations from Illustris, we show that the 3D conic version of our algorithms is more robust in detecting filaments than the standard SCMS method under the redshift distortions caused by the peculiar velocities of halos. Our cosmic web finder is packaged in python as SCONCE-SCMS and has been made publicly available.
description: 20 pages, 9 figures, 2 tables
Walking the walk of multiliteracies
Creators: name: Meredith, Kimberly
Publisher: name: The University of British Columbia
Year: 2011

description: There is an increasing recognition that the linguistic mode is only part of the meaning-making process (Kress & van Leeuwen, 2001) and that multimodality warrants increased attention in pedagogical design (New London Group, 2000). However, analysis of the gestural mode still presents major methodological and analytical complexities. This paper points to the challenges and possibilities presented in multimodal research that attempts to validate and incorporate the gestural mode of embodied literacy. It draws on data from an ongoing case study that uses video-ethnographic methodology to explore the meaning-making processes of a young dancer and choreographer. The ongoing analysis uses a developing multimodal conversational analysis approach. Early findings underscore the pressing need to continue to work through the methodological and analytic challenges of validating the gestural mode as it has particular affordances and identity opportunities that our students are drawing upon as they read and write their world through movement. [The Explorations & Education Conference is the collaborative effort of graduate student representatives from the Graduate Student Council for the Faculty of Education, the Department of Educational Studies and the Department of Curriculum and Pedagogy. The goal is to "to create a safe space for the exchange of academic ideas and to create opportunities particularly for graduate students (at all levels of study) to present their ideas and research".]
Can a "standard" Initial Mass Function explain the metal enrichment in clusters of galaxies?
Creators: name: Portinari, L.
name: Moretti, A.
name: Chiosi, C.
name: Sommer-Larsen, J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It is frequently debated in literature whether a "standard" Initial Mass Function (IMF) - meaning an IMF of the kind usually adopted to explain the chemical evolution in the local Solar Neighbourhood - can account for the observed metal enrichment and Iron Mass-to-Light Ratio in clusters of galaxies. We address this problem by means of straightforward estimates that should hold independently of the details of chemical evolution models. It is crucial to compute self-consistently the amount of mass and metals locked-up in stars, by accounting for the stellar mass-to-light ratio predicted by a given IMF. It becomes then clear that a "standard" Solar Neighbourhood IMF cannot provide enough metals to account for the observed chemical properties in clusters: clusters of galaxies and the local environment must be characterized by different IMFs. Alternatively, if we require the IMF to be universal, in order to explain clusters such an IMF must be much more efficient in metal production than usually estimated for the Solar Vicinity. In this case, substantial loss of metals is required from the Solar Neighbourhood and from disc galaxies in general. This "non-standard" scenario for the local chemical evolution would challenge our present understanding of the Milky Way and of disc galaxy formation.
description: accepted for publication on ApJ. 17 pages, 8 figures, uses emulateapj.cls
Rice Research and Production in the 21st Century
Creators: name: Rockwood, W.G.
name: Rockwood, W.G.
Publisher: name: Unknown
Year: 1992
Subjects: Crop Production/Industries

description: M.S. Swaminathan, IRRI's fourth director general, noted in a frontispiece to the Chandler book An Adventure in Applied Science: A History of the International Rice Research Institute that Chandler was "obviously modest when referring to his own contributions. It is therefore the duty of others who are aware of the history of agricultural progress... to chronicle the seminal role of Dr. Chandler." These proceedings do that. Readers who are most interested in Bob Chandler the man will find Part I rewarding. A long-time colleague and friend chronicles Chandler's humble beginnings in rural Maine and his early years as a member of a somewhat itinerant family. Professional colleagues give readers of these proceedings a close-up personal look at the life and management styles that Chandler brought to the two international institutions he founded, and the respect and love engendered among their teams of scientists. Other colleagues remember how Chandler touched their lives throughout his long and distinguished career from university professor to his post-retirement activities in other international institutions. Those readers most interested in rice, rice science, and innovations in both research methodologies and institutions will find enrichment in Parts II-IV.
Optical Variability of Narrow-Line Seyfert 1 Galaxies
Creators: name: Klimek, Elizabeth S.
name: Gaskell, C. Martin
name: Hedrick, Cecelia H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results of a broad-band photometric study of the optical variability of six Narrow-Line Seyfert 1 (NLS1) galaxies observed at 172 epochs. We searched for microvariability on 33 nights. Strong evidence for microvariability was found only for our lowest luminosity object, NGC 4051, on one night. Weaker evidence suggests such variability on a few other nights for two other objects, but the data are not as convincing. Intra-night variability in NLS1s is thus concluded to be rare and of low amplitude. We give illustrations of how variable image quality can produce spurious variability. We find that for well-studied non-NLS1s there is a spread in the amplitude of seasonal variability (i.e., in some years an AGN is more variable than in others). We find that the means of the variability amplitudes of non-NLS1s over several seasons vary from object to object (i.e., some AGNs are, on average, more variable than others). NLS1s also show a spread in seasonal variabilities. The best-studied NLS1, Ark 564, shows a range of amplitudes of variability from season to season that is comparable to the range found in BLS1s, and in one season Ark 564 was as variable as the most variable non-NLS1. The seasonal amplitudes of variability for NLS1s are mostly in the lower half of the range of non-BLS1 seasonal amplitudes, but the absence of a suitable control sample makes a precise comparison difficult. However, on long timescales (weeks to years), NLS1s as a class are not more variable than non-NLS1s. The extreme variability seen in the X-rays was not seen in the optical. This has consequences for the models of AGNs in general as well as NLS1s in particular.
description: Astrophysical Journal in press (tentatively scheduled for Vol. 608, June 2004 issue);47 pages; 19 figures. Electronic tables not included (contact first author if needed)
Using a meaning driven approach with authentic texts in the FSL classroom
Creators: name: Kung, Emily A.
Publisher: name: The University of British Columbia
Year: 2014

description: This paper discusses research focused on the ways in which authentic texts can support language learning in a second language classroom. Traditional methods of language learning which depend on bottom-up instruction are heavily reliant on the teacher, grammmar-based worksheets, and memorization of vocabulary and grammar rules. Research identifies that by carefully structuring a lesson around an authentic text that is by chunking the reading into three phases of pre-reading, reading and post-reading with appropriate activities, teachers can use authentic texts to support students' second language learning. The research shows that instructional activities done in conjunction with an authentic text are an extremely important aspect of using authentic texts with beginning second language learners. Research identifies that with teacher guidance and carefully designed activities authentic texts can support second language learning at all levels including beginners. Finally, research suggests that if students are to benefit from engagement with authentic texts then such texts should be introduced (with appropriate teacher support) sooner rather than later. This paper examines what the research has to say about incorporating authentic texts into the FSL (French as a Second Language) program in a beginner to intermediate classroom at the grade 8 or 9 level. What was learned from this review of the literature is used to develop a unit plan based on three authentic texts and connections to practice.
Option pricing in time-changed Lévy models with compound Poisson jumps
Creators: name: Ivanov, Roman V.
name: Ano, Katsunori
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: The problem of European-style option pricing in time-changed Lévy models in the presence of compound Poisson jumps is considered. These jumps relate to sudden large drops in stock prices induced by political or economical hits. As the time-changed Lévy models, the variance-gamma and the normal-inverse Gaussian models are discussed. Exact formulas are given for the price of digital asset-or-nothing call option on extra asset in foreign currency. The prices of simpler options can be derived as corollaries of our results and examples are presented. Various types of dependencies between stock prices are mentioned.
description: Published at https://doi.org/10.15559/18-VMSTA124 in the Modern Stochastics: Theory and Applications (https://vmsta.org/) by VTeX (http://www.vtex.lt/)
Comment on "Vortex Liquid Crystal in Anisotropic Type II Superconductors"
Creators: name: Hu, Xiao
name: Chen, Qing-Hu
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: This is a Comment on "Vortex Liquid Crystal in Anisotropic Type II Superconductors" by E. W. Carlson et al. in PRL, vol.90, 087001 (2003) [cond-mat/0209175].
description: 2 pages, 1 figure, revised version
SWIPT with Practical Modulation and RF Energy Harvesting Sensitivity
Creators: name: Liu, Wanchun
name: Zhou, Xiangyun
name: Durrani, Salman
name: Popovski, Petar
Publisher: name: arXiv
Year: 2019
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we investigate the performance of simultaneous wireless information and power transfer (SWIPT) in a point-to-point system, adopting practical $M$-ary modulation. We take into account the fact that the receiver's radio-frequency (RF) energy harvesting circuit can only harvest energy when the received signal power is greater than a certain sensitivity level. For both power-splitting (PS) and time-switching (TS) schemes, we derive the energy harvesting performance as well as the information decoding performance for the Nakagami-$m$ fading channel. We also analyze the performance tradeoff between energy harvesting and information decoding by studying an optimization problem, which maximizes the information decoding performance and satisfies a constraint on the minimum harvested energy. Our analysis shows that (i) for the PS scheme, modulations with high peak-to-average power ratio achieve better energy harvesting performance, (ii) for the TS scheme, it is desirable to concentrate the power for wireless power transfer in order to minimize the non-harvested energy caused by the RF energy harvesting sensitivity level, and (iii) channel fading is beneficial for energy harvesting in both PS and TS schemes.
description: In Proc. IEEE ICC 2016
Forecasting Elections from Partial Information Using a Bayesian Model for a Multinomial Sequence of Data
Creators: name: Deb, Soudeep
name: Roy, Rishideep
name: Das, Shubhabrata
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: G.3
subject: 62H10, 62P99, 65C05

description: Predicting the winner of an election is of importance to multiple stakeholders. To formulate the problem, we consider an independent sequence of categorical data with a finite number of possible outcomes in each. The data is assumed to be observed in batches, each of which is based on a large number of such trials and can be modeled via multinomial distributions. We postulate that the multinomial probabilities of the categories vary randomly depending on batches. The challenge is to predict accurately on cumulative data based on data up to a few batches as early as possible. On the theoretical front, we first derive sufficient conditions of asymptotic normality of the estimates of the multinomial cell probabilities and present corresponding suitable transformations. Then, in a Bayesian framework, we consider hierarchical priors using multivariate normal and inverse Wishart distributions and establish the posterior convergence. The desired inference is arrived at using these results and ensuing Gibbs sampling. The methodology is demonstrated with election data from two different settings -- one from India and the other from the United States of America. Additional insights of the effectiveness of the proposed methodology are attained through a simulation study.
description: 36 pages including a coverpage, 4 figures, 13 tables including 4 in the appendix
On the Kinetic Energy Density Functional: The Limit of the Density Derivative Order
Creators: name: Al-Aswad, Abdulaziz H.
name: Alharbi, Fahhad H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Within ``orbital-free'' density functional theory, it is essential to develop general kinetic energy density (KED), denoted as $t(\mathbf{r})$. This is usually done by empirical corrections and enhancements, gradient expansions, machine learning, or axiomatic approaches to find forms that satisfy physical necessities. In all cases, it is crucial to determine the largest spatial density derivative order, $m$ in, $t(\mathbf{r})$. There have been many efforts to do so, but none have proven general or conclusive and there is no clear guide on how to set $m$. In this work, we found that, by imposing KED finitude, $m=D+1$ for systems of dimension $D$. This is consistent with observations and provides a needed guide for systematically developing more accurate KEDs.
ИЗУЧЕНИЕ ПОДТАКЫРНЫХ ПОДЗЕМНЫХ ВОД УСТЮРТА
Creators: name: Очилов, Г.Э.
name: Акимова, А.П.
name: Джаксымуратов, К.М.
Publisher: name: Zenodo
Year: 2025

description: Как известно, одна из интереснейших тайн природы пресные подземные воды пустынных территорий во многом не разгадана до сих пор. Основа сути решения вопроса заключена в противоречии между фактом нахождения пресных подземных вод в пустыне, имеющих исключительно хозяйственную ценность, и жарким засушливым климатом, приводящим неизбежному засолению их.
Gauging the spacetime metric -- looking back and forth a century later
Creators: name: Scholz, Erhard
Publisher: name: arXiv
Year: 2019
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: History and Overview (math.HO)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: H. Weyl's proposal of 1918 for generalizing Riemannian geometry by local scale gauge (later called {\em Weyl geometry}) was motivated by mathematical, philosophical and physical considerations. It was the starting point of his unified field theory of electromagnetism and gravity. After getting disillusioned with this research program and after the rise of a convincing alternative for the gauge idea by translating it to the phase of wave functions and spinor fields in quantum mechanics, Weyl no longer considered the original scale gauge as physically relevant. About the middle of the last century the question of conformal and/or local scale gauge transformation were reconsidered by different authors in high energy physics (Bopp, Wess, et al.) and, independently, in gravitation theory (Jordan, Fierz, Brans, Dicke). In this context Weyl geometry attracted new interest among different groups of physicists (Omote/Utiyama/Kugo, Dirac/Canuto/Maeder, Ehlers/Pirani/Schild and others), often by hypothesizing a new scalar field linked to gravity and/or high energy physics. Although not crowned by immediate success, this ``retake'' of Weyl geometrical methods lives on and has been extended a century after Weyl's first proposal of his basic geometrical structure. It finds new interest in present day studies of elementary particle physics, cosmology, and philosophy of physics.
description: 56 pages, contribution to Workshop Hundred Years of Gauge Theory Bad Honnef, July 30 - August 3, 2018
Higher-spin gravity's "string": new gauge and proof of holographic duality for the linearized Didenko-Vasiliev solution
Creators: name: Lysov, Vyacheslav
name: Neiman, Yasha
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider type-A higher-spin gravity in AdS_4, holographically dual to a free U(N) vector model on the boundary. We study the linearized version of the Didenko-Vasiliev "BPS black hole", which we view as this theory's equivalent of the fundamental string. The Didenko-Vasiliev solution consists of gauge fields of all spins generated by a particle-like source along a bulk geodesic, and is holographically dual to a bilocal boundary operator at the geodesic's endpoints. Our first main result is a new gauge for this solution, which makes manifest its behavior under the boundary field equation. It can be viewed as an AdS uplift of flat spacetime's de Donder gauge, but is not de Donder in AdS. To our knowledge, this gauge is novel even in the spin-2 sector, and thus provides a new expression for the linearized gravitational field of a massive point particle in (A)dS_4. Our second main result is a proof of the holographic duality between the mutual bulk action of two Didenko-Vasiliev solutions and the CFT correlator of two boundary bilocals. As an intermediate step, we show that in a bilocal->local limit, the Didenko-Vasiliev solution reproduces the standard boundary-bulk propagators of all spins. We work in the "metric-like" language of Fronsdal fields, and use the embedding-space formalism.
description: 35 pages; v2: JHEP version - expanded discussion/references, fixed sign error in last equation
Benefits and Burdens of Government Fiscal Policy: A Study the Distributional Impacts of Federal and State-Local Taxing and Spending
Creators: name: PLath, Joel C.
name: Ayer, Harry W.
name: PLath, Joel C.
name: Ayer, Harry W.
Publisher: name: Unknown
Year: 1975
Subjects: subject: Community/Rural/Urban Development
subject: income distribution
subject: economic analysis
subject: public finance
subject: fiscal policy
subject: taxes
subject: government expenditures
subject: public goods
subject: urban
subject: rural farm
subject: rural nonfarm sectors

description: The distribution of income among income classes is estimated for the U.S. and urban, rural and farm populations of the West. New theory is then used to estimate the distribution of public goods benefits among income. classes. Estimates of the distribution of taxes and specific goods benefits are also made.
Efficient Dust Ring Formation in Misaligned Circumbinary Discs
Creators: name: Aly, Hossam
name: Lodato, Giuseppe
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Binary systems exert a gravitational torque on misaligned discs orbiting them, causing differential precession which may produce disc warping and tearing. While this is well understood for gas-only discs, misaligned cirumbinary discs of gas and dust have not been thoroughly investigated. We perform SPH simulations of misaligned gas and dust discs around binaries to investigate the different evolution of these two components. We choose two different disc aspect ratios: A thin case for which the gas disc always breaks, and a thick one where a smooth warp develops throughout the disc. For each case, we run simulations of five different dust species with different degrees of coupling with the gas component, varying in Stokes number from 0.002 (strongly coupled dust) to 1000 (effectively decoupled dust). We report two new phenomena: First, large dust grains in thick discs pile up at the warp location, forming narrow dust rings, due to a difference in precession between the gas and dust components. These pile ups do not form at gas pressure maxima, and hence are different from conventional dust traps. This effect is most evident for St ~ 10 - 100. Second, thin discs tear and break only in the gas, while dust particles with St > 10 form a dense dust trap due to the steep pressure gradient caused by the break in the gas. We find that dust with St < 0.02 closely follow the gas particles, for both thin and thick discs, with radial drift becoming noticeable only for the largest grains in this range.
description: Accepted for publication in MNRAS, 11 pages, 9 figures
The matrix realization of affine Jacobi varieties and the extended Lotka-Volterra lattice
Creators: name: Inoue, Rei
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: 37K20, 70H06

description: We study completely integrable Hamiltonian systems whose monodromy matrices are related to the representatives for the set of gauge equivalence classes $\boldsymbol{\mathcal{M}}_F$ of polynomial matrices. Let $X$ be the algebraic curve given by the common characteristic equation for $\boldsymbol{\mathcal{M}}_F$. We construct the isomorphism from the set of representatives to an affine part of the Jacobi variety of $X$. This variety corresponds to the invariant manifold of the system, where the Hamiltonian flow is linearized. As the application, we discuss the algebraic completely integrability of the extended Lotka-Volterra lattice with a periodic boundary condition.
description: Revised version, 26 pages
'Yedikule Bostans': A Serious Game For Cultural Heritage
Creators: name: Sarvin Eshaghi
name: Örnek, Muhammed Ali
Publisher: name: figshare
Year: 2021
Subjects: subject: 210202 Heritage and Cultural Conservation
subject: FOS: Media and communications

description: 'Yedikule Bostans': A Serious Game For Cultural HeritageConference: IDU SPAD’20 International Spatial Planning and Design Symposium, Future of Planning and Design, Planning and Design of FutureAuthors: Sarvin Eshaghi, Muhammed Ali Örnek
title: Fundamentals of engineering technology
Creators: name: ELS IPR BOOKS
Publisher: name: EDP Hub (Идипи Хаб), Ай Пи Ар Медиа
Year: 2025

description: Principal questions of the “Fundamentals of Engineering Technology” discipline are examined in the textbookas well as scientific patterns and connections appearing under designing and formation of machines. Basic principals of technological process designing and quality assurance of products in engineering are also surveyed. The textbook is recommended for students of higher education of the group of educational programs “Mechanics and metalworking”, studying the discipline “Fundamentals of mechanical engineering technology.”
Understanding the quantum Rabi ring using analogies to quantum magnetism
Creators: name: Padilla, Diego Fallas
name: Pu, Han
name: Cheng, Guo-Jing
name: Zhang, Yu-Yu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We map a quantum Rabi ring, consisting of $N$ cavities arranged in a ring geometry, into an effective magnetic model containing the XY exchange and the Dzyaloshinskii Moriya (DM) interactions. The analogue of the latter is induced by an artificial magnetic field, which modulates photon hopping between nearest-neighbor cavities with a phase. The mean-field behavior of both systems is almost identical, facilitating the description of the different phases in the quantum optical model through simple arguments of competing magnetic interactions. For the square geometry ($N=4$) the rich phase diagram exhibits three superradiant phases denoted as ferro-superradiant, antiferro-superradiant and chiral superradiant. In particular, the DM interaction is responsible for the chiral phase in which the energetically degenerate configurations of the order parameters are similar to the in-plane magnetizations of skyrmions with different helicities. The antiferro-superradiant phase is suppressed in the triangle geometry ($N=3$) as geometric frustration contributes to stabilize the chiral phase even for small values of the DM interaction. The chiral phases for odd and even $N$ show a different scaling behavior close to the phase transition. The equivalent behavior on both systems opens the possibility of simulating chiral magnetism in a few-body quantum optical platform, as well as understanding one system using the insights gained from the other.
description: 14 pages, 6 figures
title: Universitätsbibliothek Marburg, Ms. 1: Lucanus: Pharsalia
Creators: name: Lucanus, Marcus Annaeus
Publisher: name: Philipps-Universität Marburg
Year: 2022
Subjects: Manuscripts & rare books
Handschriften, seltene Bücher

description: Elektronische Reproduktion von: Universitätsbibliothek Marburg, Ms. 1: Lucanus: Pharsalia. - 103 Blätter : Illustrationen. - Beschreibstoff: Pergament; 24 x 13,5 cm. - Erschienen: [Süddeutschland, 13. Jahrhundert, 2. Hälfte]. - Standort: Universität Marburg, Universitätsbibliothek. - Signatur: Ms. 1. - Bemerkungen: Frühere Signatur: Mscr. 1, A 1, Cod. II. - Ausführliche Beschreibung: Heyne, Sirka: Die mittelalterlichen Handschriften der Universitätsbibliothek Marburg; Wiesbaden : Harrassowitz, 2002; S.3-4. - Digitalisiert 2021
The Maslov Gerbe
Creators: name: Weinstein, Alan
Publisher: name: arXiv
Year: 2003
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 53D12

description: Let Lag(E) be the grassmannian of lagrangian subspaces of a complex symplectic vector space E. We construct a Maslov class which generates the second integral cohomology of Lag(E), and we show that its mod 2 reduction is the characteristic class of a flat gerbe with structure group Z_2. We explain the relation of this gerbe to the well-known flat Maslov line bundle with structure group Z_4 over the real lagrangian grassmannian, whose characteristic class is the mod 4 reduction of the real Maslov class.
description: 8 pages
Water user associations: a review of approaches and alternative management options for Sub-Saharan Africa
Creators: name: Aarnoudse, E.
name: Closas, Alvar
name: Lefore, Nicole
name: Aarnoudse, E.
name: Closas, Alvar
name: Lefore, Nicole
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Crop Production/Industries
subject: Environmental Economics and Policy
subject: Financial Economics
subject: Food Security and Poverty
subject: Resource /Energy Economics and Policy
subject: Water users associations
subject: Water management
subject: Water security
subject: Water resources
subject: Water governance
subject: Water policy
subject: Water distribution
subject: Stakeholders
subject: Public-private cooperation
subject: Partnerships
subject: Surface water
subject: Groundwater irrigation
subject: Irrigation systems
subject: Irrigation management
subject: Irrigation water
subject: Decision making
subject: Investment
subject: Food security
subject: Cost recovery
subject: Community development
subject: Participatory approaches
subject: Public participation
subject: Agricultural productivity
subject: Socioeconomic environment
subject: Alternative methods
subject: Public authorities
subject: Africa South of Sahara

description: Building on existing literature and the analysis of a portfolio of development projects (past and under implementation), this paper reviews the evolution of water user associations (WUAs) in sub-Saharan Africa (SSA), reflecting on the conceptualization of how they operate, and the promised outcomes related to irrigation development, and the efficient and effective delivery of irrigation services. It also moves one step further from existing studies on WUAs, postulating that additional reflection is needed to understand the limitations of WUAs and proposes alternative, viable and context-based adapted models. This need is particularly strong in SSA where irrigation is incipient, and governments and donors are still consolidating their development approaches. Whereas a growing body of international literature takes into account the sociopolitical context of decentralized irrigation management, practical indication on what remains to be done to address the various limitations found in SSA stays meagre and scattered. The objective of this paper is not to challenge the myth of WUAs but to learn how to better deliver on the promised outcomes. The underlying message is that, if the SSA region is to be made water and food secure while respecting resource sustainability, community development, livelihoods and equality of resource access, the recurrent templates for WUA management and governance need to be revisited and adapted to local needs.
Interatomic force from neural network based variational quantum Monte Carlo
Creators: name: Qian, Yubing
name: Fu, Weizhong
name: Ren, Weiluo
name: Chen, Ji
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Accurate ab initio calculations are of fundamental importance in physics, chemistry, biology, and materials science, which have witnessed rapid development in the last couple of years with the help of machine learning computational techniques such as neural networks. Most of the recent efforts applying neural networks to ab initio calculation have been focusing on the energy of the system. In this study, we take a step forward and look at the interatomic force obtained with neural network wavefunction methods by implementing and testing several commonly used force estimators in variational quantum Monte Carlo (VMC). Our results show that neural network ansatz can improve the calculation of interatomic force upon traditional VMC. The relation between the force error and the quality of neural network, the contribution of different force terms, and the computational cost of each term are also discussed to provide guidelines for future applications. Our work demonstrates that it is promising to apply neural network wavefunction methods in simulating structures/dynamics of molecules/materials and provide training data for developing accurate force fields.
Some Further Explorations in Contingent Valuation: The Value of Wildlife-Related Amenities
Creators: name: Stoll, John R.
name: Randall, Alan
name: Brookshire, David S.
name: Stoll, John R.
name: Randall, Alan
name: Brookshire, David S.
Publisher: name: Unknown
Year: 1978
Subjects: Environmental Economics and Policy
Resource /Energy Economics and Policy

description: Contingent valuation techniques were applied to wildliferelated amenities. The iterative bidding approach used. permitted testing for several types of bias and interpretation of value data in terms of Hicksian welfare change measures. Contingent valuation formats are evaluated for effectiveness. and estimates of activity. option. and preservation values are presented.
Magnetic, thermal, and electronic-transport properties of EuMg2Bi2 single crystals
Creators: name: Pakhira, Santanu
name: Tanatar, M. A.
name: Johnston, D. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The trigonal compound EuMg2Bi2 has recently been discussed in terms of its topological band properties. These are intertwined with its magnetic properties. Here detailed studies of the magnetic, thermal, and electronic transport properties of EuMg2Bi2 single crystals are presented. The Eu{+2} spins-7/2 in EuMg2Bi2 exhibit an antiferromagnetic (AFM) transition at a temperature TN = 6.7 K, as previously reported. By analyzing the anisotropic magnetic susceptibility chi data below TN in terms of molecular-field theory (MFT), the AFM structure is inferred to be a c-axis helix, where the ordered moments in the hexagonal ab-plane layers are aligned ferromagnetically in the ab plane with a turn angle between the moments in adjacent moment planes along the c axis of about 120 deg. The magnetic heat capacity exhibits a lambda anomaly at TN with evidence of dynamic short-range magnetic fluctuations both above and below TN. The high-T limit of the magnetic entropy is close to the theoretical value for spins-7/2. The in-plane electrical resistivity rho(T) data indicate metallic character with a mild and disorder-sensitive upturn below Tmin = 23 K. An anomalous rapid drop in rho(T) on cooling below TN as found in zero field is replaced by a two-step decrease in magnetic fields. The rho(T) measurements also reveal an additional transition below TN in applied fields of unknown origin that is not observed in the other measurements and may be associated with an incommensurate to commensurate AFM transition. The dependence of TN on the c-axis magnetic field Hperp was derived from the field-dependent chi(T), Cp(T), and rho(T) measurements. This TN(Hperp) was found to be consistent with the prediction of MFT for a c-axis helix with S = 7/2 and was used to generate a phase diagram in the Hperp-T plane.
description: 15 pages, 16 captioned figures, 3 tables, 67 references. New figure and text added
title: Universitätsbibliothek Marburg, Ms. 2: Iustinus: Historiae Philippicae - Cicero: Orationes in Catilinam quattuor
Creators: name: Iustinus, Marcus Iunianus
name: Cicero, Marcus Tullius
Publisher: name: Philipps-Universität Marburg
Year: 2022
Subjects: Manuscripts & rare books
Handschriften, seltene Bücher

description: Elektronische Reproduktion von: Universitätsbibliothek Marburg, Ms. 2: Iustinus: Historiae Philippicae - Cicero: Orationes in Catilinam quattuor. - 132 Blätter ; Beschreibstoff: Papier; 31,5 x 20 cm. - Erschienen: [Norditalien], [15. Jahrhundert, letztes Drittel]. - Standort: Universität Marburg, Universitätsbibliothek. - Signatur: Ms. 2. - Bemerkungen: Frühere Signaturen: Mscr. 2, A 2, Cod. C. Ausführliche Beschreibung: Heyne, Sirka: Die mittelalterlichen Handschriften der Universitätsbibliothek Marburg; Wiesbaden : Harrassowitz, 2002; S. 4-5. - Digitalisiert 2021
Difference equation of the colored Jones polynomial for torus knot
Creators: name: Hikami, Kazuhiro
Publisher: name: arXiv
Year: 2004
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We prove that the N-colored Jones polynomial for the torus knot T_{s,t} satisfies the second order difference equation, which reduces to the first order difference equation for a case of T_{2,2m+1}. We show that the A-polynomial of the torus knot can be derived from this difference equation. Also constructed is a q-hypergeometric type expression of the colored Jones polynomial for T_{2,2m+1}.
description: 7 pages
Scalable and Accurate Test Case Prioritization in Continuous Integration Contexts
Creators: name: Yaraghi, Ahmadreza Saboor
name: Bagherzadeh, Mojtaba
name: Kahani, Nafiseh
name: Briand, Lionel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Continuous Integration (CI) requires efficient regression testing to ensure software quality without significantly delaying its CI builds. This warrants the need for techniques to reduce regression testing time, such as Test Case Prioritization (TCP) techniques that prioritize the execution of test cases to detect faults as early as possible. Many recent TCP studies employ various Machine Learning (ML) techniques to deal with the dynamic and complex nature of CI. However, most of them use a limited number of features for training ML models and evaluate the models on subjects for which the application of TCP makes little practical sense, due to their small regression testing time and low number of failed builds.
 In this work, we first define, at a conceptual level, a data model that captures data sources and their relations in a typical CI environment. Second, based on this data model, we define a comprehensive set of features that covers all features previously used by related studies. Third, we develop methods and tools to collect the defined features for 25 open-source software systems with enough failed builds and whose regression testing takes at least five minutes. Fourth, relying on the collected dataset containing a comprehensive feature set, we answer four research questions concerning data collection time, the effectiveness of ML-based TCP, the impact of the features on effectiveness, the decay of ML-based TCP models over time, and the trade-off between data collection time and the effectiveness of ML-based TCP techniques.
description: 27 pages, LaTeX; Minor writing corrections in the abstract; Major revision
Anomalous diffusion and collapse of self-gravitating Langevin particles in D dimensions
Creators: name: Chavanis, Pierre-Henri
name: Sire, Clement
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We address the generalized thermodynamics and the collapse of a system of self-gravitating Langevin particles exhibiting anomalous diffusion in a space of dimension D. The equilibrium states correspond to polytropic distributions. The index n of the polytrope is related to the exponent of anomalous diffusion. We consider a high-friction limit and reduce the problem to the study of the nonlinear Smoluchowski-Poisson system. We show that the associated Lyapunov functional is the Tsallis free energy. We discuss in detail the equilibrium phase diagram of self-gravitating polytropes as a function of D and n and determine their stability by using turning points arguments and analytical methods. When no equilibrium state exists, we investigate self-similar solutions describing the collapse. These results can be relevant for astrophysical systems, two-dimensional vortices and for the chemotaxis of bacterial populations. Above all, this model constitutes a prototypical dynamical model of systems with long-range interactions which possesses a rich structure and which can be studied in great detail.
description: Submitted to Phys. Rev. E
title: Universitätsbibliothek Marburg, Ms. 6: Priscianus Caesariensis
Creators: name: Priscianus
Publisher: name: Philipps-Universität Marburg
Year: 2022
Subjects: Manuscripts & rare books
Handschriften, seltene Bücher

description: Elektronische Reproduktion von: Universitätsbibliothek Marburg, Ms. 6: Priscianus Caesariensis. - 1 Blatt ; Beschreibstoff: Pergament; 20,7 x 16,3 cm. - Erschienen: [Westdeutschland], [um 900]. - Standort: Universität Marburg, Universitätsbibliothek. - Signatur: Ms. 6. - Bemerkungen: Fragment wurde abgelöst von 095 XIXa B 47, 3. - Frühere Signaturen: Mscr. 6, A 6. Ausführliche Beschreibung: Heyne, Sirka: Die mittelalterlichen Handschriften der Universitätsbibliothek Marburg; Wiesbaden : Harrassowitz, 2002; S. 10. - Digitalisiert 2021
FARM RECEIPTS, EXPENDITURES AND NET FARM INCOME
Creators: name: Daly, Rex F.
name: Daly, Rex F.
Publisher: name: Unknown
Year: 1978
Subjects: Farm Management

description: A·much improved farm income picture is unfolding for 1978 and very early indications for 1979 suggest incomes near 1978 levels. ·However, returns to farmers this year and in 1979 still depend heavily on the outcome of 1978/79 crops worldwide, farm program discussions now underway and how the general economy performs in the coming year.
Domain-independent Extraction of Scientific Concepts from Research Articles
Creators: name: Brack, Arthur
name: D'Souza, Jennifer
name: Hoppe, Anett
name: Auer, Sören
name: Ewerth, Ralph
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Retrieval (cs.IR)
subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: We examine the novel task of domain-independent scientific concept extraction from abstracts of scholarly articles and present two contributions. First, we suggest a set of generic scientific concepts that have been identified in a systematic annotation process. This set of concepts is utilised to annotate a corpus of scientific abstracts from 10 domains of Science, Technology and Medicine at the phrasal level in a joint effort with domain experts. The resulting dataset is used in a set of benchmark experiments to (a) provide baseline performance for this task, (b) examine the transferability of concepts between domains. Second, we present two deep learning systems as baselines. In particular, we propose active learning to deal with different domains in our task. The experimental results show that (1) a substantial agreement is achievable by non-experts after consultation with domain experts, (2) the baseline system achieves a fairly high F1 score, (3) active learning enables us to nearly halve the amount of required training data.
description: Accepted for publishing in 42nd European Conference on IR Research, ECIR 2020