cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fluctuations of linear statistics for Gaussian perturbations of the lattice $\mathbb{Z}^d$
Creators: name: Yakir, Oren
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study the point process $W$ in $\mathbb{R}^d$ obtained by adding an independent Gaussian vector to each point in $\mathbb{Z}^d$. Our main concern is the asymptotic size of fluctuations of the linear statistics in the large volume limit, defined as \[ N(h,R) = \sum_{w\in W} h\left(\frac{w}{R}\right), \] where $h\in \left(L^1\cap L^2\right)(\mathbb{R}^d)$ is a test function and $R\to \infty$. We will also consider the stationary counter-part of the process $W$, obtained by adding to all perturbations a random vector which is uniformly distributed on $[0,1]^d$ and is independent of all the Gaussians. We focus on two main examples of interest, when the test function $h$ is either smooth or is an indicator function of a convex set with a smooth boundary whose curvature does not vanish.
description: 24 pages. Changed title in the 2nd version and added some references
Svenja C. Dirksen and Lena S. Krastel (eds.). 2020. Epigraphy through five millenia: Texts and images in context
Creators: name: Bojowald, Stefan
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2021

description: Kervan. International Journal of African and Asian Studies, V. 25 N. 2 (2021): Kervan
Modeling Yield Risk Under Technological Change: Dynamic Yield Distribution and the U.S Crop Insurance Program
Creators: name: Zhu, Ying
name: Goodwin, Barry K.
name: Ghosh, Sujit K.
name: Zhu, Ying
name: Goodwin, Barry K.
name: Ghosh, Sujit K.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Financial Economics
subject: Crop Insurance
subject: Model Comparison
subject: Time-Varying Distribution

description: The objective of this study is to evaluate and model the yield risk associated with major agricultural commodities in the U.S. We are particularly concerned with the nonstationary nature of the yield distribution, which primarily arises because of technological progress and changing environmental conditions. Precise risk assessment depends on the accuracy of modeling this distribution. This problem becomes more challenging as the yield distribution changes over time, a condition that holds for nearly all major crops. A common approach to this problem is based on a two-stage method in which the yield is first detrended and then the estimated residuals are treated as observed data and modeled using various parametric or nonparametric methods. We propose an alternative parametric model that allows the moments of the yield distributions to change with time. Several model selection techniques suggest that the proposed time-varying model outperforms more conventional models in terms of in-sample goodness-of-fit, out-of-sample predictive power and the prediction accuracy of insurance premium rates.
title: 01_0796
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
title: Reframing flexibility beyond power
Creators: name: Schipfer, Fabian
Publisher: name: TU Wien
Year: 2023
Subjects: Flexibility
Energy Sytem Modelling
Uncertainty
Bioenergy
Multi-sector coupling

description: Multi-sector coupling holds the potential for increasing flexibility. But what are the beneficial and detrimental impacts of system flexibilisation, and how can we assess and anticipate them? The objective of this IEA Bioenergy, IEA ETSAP and IEA Hydrogen collaboration is to exchange modelling experiences and perspectives on the multi-faceted aspects of flexibility. A bioenergy supply chain can be an intricate and networked affair: Flexibility can often be found throughout the chain, in feedstock sourcing, pre-treatment, storage, distribution, and conversion into heat, power, and fuels. While hydrogen supply and utilisation from feedstock-independent renewables might be a less complex endeavour, respective impact assessment is not straightforward either. For example, energy storage at different time scales, inter-sectoral synergies and tradeoffs, and contributions to energy security must be accounted for. Also, system complexification through integration, sector-, and multi-sector coupling boosts systemic risks, encompassing safety concerns, security vulnerabilities, and the potential for cascading failures. Adjunct to the ETSAP workshop and ExCo meeting in Torino (IT), a half-day workshop will set the scene for the discussion and the joint planning of a webinar with the aim of formulating a modelling agenda for flexibilisation impact assessment. Your participation and expertise are invaluable to shaping this discourse. We eagerly anticipate your presence for the interdisciplinary and inclusive exchange.
Energy cutoff, effective theories, noncommutativity, fuzzyness: the case of O(D)-covariant fuzzy spheres
Creators: name: Fiore, Gaetano
name: Pisacane, Francesco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 81R60, 22D10

description: Projecting a quantum theory onto the Hilbert subspace of states with energies below a cutoff $\overline{E}$ may lead to an effective theory with modified observables, including a noncommutative space(time). Adding a confining potential well $V$ with a very sharp minimum on a submanifold $N$ of the original space(time) $M$ may induce a dimensional reduction to a noncommutative quantum theory on $N$. Here in particular we briefly report on our application of this procedure to spheres $S^d\subset\mathbb{R}^D$ of radius $r=1$ ($D=d\!+\!1>1$): making $\overline{E}$ and the depth of the well depend on (and diverge with) $Λ\in\mathbb{N}$ we obtain new fuzzy spheres $S^d_Λ$ covariant under the {\it full} orthogonal groups $O(D)$; the commutators of the coordinates depend only on the angular momentum, as in Snyder noncommutative spaces. Focusing on $d=1,2$, we also discuss uncertainty relations, localization of states, diagonalization of the space coordinates and construction of coherent states. As $Λ\to\infty$ the Hilbert space dimension diverges, $S^d_Λ\to S^d$, and we recover ordinary quantum mechanics on $S^d$. These models might be suggestive for effective models in quantum field theory, quantum gravity or condensed matter physics.
description: Latex file, 21 pages. Proceedings of Science Volume 376 - Corfu Summer Institute 2019 "School and Workshops on Elementary Particle Physics and Gravity" (CORFU2019) - Workshop on Quantum Geometry, Field Theory and Gravity
Factors Affecting Variability in Farm and Off-farm Income
Creators: name: Poon, Kenneth
name: Alfons, Weersink
name: Poon, Kenneth
name: Alfons, Weersink
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural and Food Policy
subject: Relative variability
subject: farm and off- farm income

description: The purpose of this paper is to examine the factors affecting the relative variability in farm and off-farm income for Canadian farm operators. Previous attempts have been limited by the lack of available data combining both farm and off-farm income levels for farm operations over time. Statistic Canada’s Farm Micro-Longtidinal Dataset of 17,000 farm operators from 2001 to 2006 allowed such an analysis. The coefficient of variation (CV) in farm income is significantly greater than that for off-farm income but both measures are inversely related to the permanence of the income source to the operation. The greater the reliance on farm income and the greater the labour demand within the farm, the lower (greater) the relative variability in farm (off-farm) income. Larger commercial operations tend to experience larger farm income volatility either because they are less risk averse and/or have the ability to manage more risk. Diversification and off-farm employment appear to be substitute for risk management strategies for commercial operations. Pension and lifestyle farms have lower coefficient of variation for both farm and off-farm income compared to business-focused farms since they are possibly more risk averse and benefit from a permanent stream of off-farm revenue. Government payments have mixed effects on the relative variability of both income sources, which may be due the lag between the time of the income reduction and the time at which the aid is received.
The historical reality of the plural of paucity and the plural diminutive in Classical Arabic: Evidence from kalām al-‘arab (Part One)
Creators: name: Grande, Francesco
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2021

description: This study investigates the semantics of the plural of paucity and the plural diminutive, based on their attestations in the non-literary source of Classical Arabic traditionally known as kalām al-‘arab. In noun plural marking, the meaning of the diminutive is as elusive as that of the plural of paucity. What is known of both kinds of meanings is mainly derived from the indirect description of early lexicographers and grammarians. To assess the historical reality of this traditional semantic description, attestations from the kalām al-‘arab are collected, then compared to data from Arabic dialects, and finally subjected to a distributional analysis. The grammatical categories of the collective, inherent plural, and the pseudo-dual are also considered in this assessment.
description: Kervan. International Journal of African and Asian Studies, V. 25 N. 2 (2021): Kervan
Emphasis, glottalization and pharyngealization in Semitic and Afroasiatic
Creators: name: Gasparini, Fabio
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2021

description: This paper investigates the phenomenon of emphasis in Semitic from a phonological perspective. It is well known that Semitic emphatics can be realized either as ejectives (Ethiosemitic) or as pharyngealized consonants (Arabic). Recent interest in the Modern South Arabian languages revealed that the emphatics in this group can be realized through an interaction of glottalization and pharyngealization. Starting from a general assessment of glottalization from a cross–linguistic perspective, a focus on Semitic emphatics will be given by using data from the endangered Modern South Arabian language, Baṭḥari. Our goal is to provide a feature analysis of emphasis in Baṭḥari and to correlate it with the rest of Semitic, with special attention to the peculiar phonological patterning of the emphatic /ṭ/. This consonant appears to pattern in Baṭḥari together with the class of breathed consonants (Heselwood and Maghrabi 2015), probably due to its peculiar features. It will be shown that, by adopting Duanmu’s (2016) framework of phonological features, it is possible to provide a coherent model for the patterning of Baṭḥari and Modern South Arabian emphatics within Semitic. Furthermore, this paper will provide some tentative parallels between Semitic emphatics and glottalized segments found in the rest of Afroasiatic.
description: Kervan. International Journal of African and Asian Studies, V. 25 N. 2 (2021): Kervan
GALEX: Galaxy Evolution Explorer
Creators: name: Madore, Barry F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We review recent scientific results from the Galaxy Evolution Explorer with special emphasis on star formation in nearby resolved galaxies.
description: invited review; to be published in "The Spectral Energy Distribution of Gas-Rich Galaxies: Confronting Models with Data", 4-8 October 2004, Heidelberg, eds. Cristina C. Popescu and Richard J. Tuffs, AIP Conf. Ser.; for a high resolution version see http://nedwww.ipac.caltech.edu/level5/March05/Madore/frames.html
Technical Efficiency, Environment Efficiency, Productivity and Beneficial Management Practices
Creators: name: Lota, Tamini D.
name: Bruno, Larue
name: West, Gale E.
name: Lota, Tamini D.
name: Bruno, Larue
name: West, Gale E.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Environment efficiency
subject: distance function
subject: phosphorus runoff
subject: productivity
subject: profitability
subject: technical efficiency

description: An input distance function (IDF) is estimated to empirically evaluate and analyze the technical and environmental efficiencies of 210 farms located in the Chaudière watershed (Quebec), where water quality problems are particularly acute because of the production of undesirable outputs that are jointly produced with agricultural products. The true IDF is approximated by a flexible translog functional form estimated using a full information maximum likelihood method. Technical and environmental efficiencies are disaggregated across farms and account for spatial variations. Our results show that there is a significant correlation between technical and environmental efficiencies. Farms that are technically efficient tend to be environmentally efficient. We used the cumulative Malmquist productivity index and the Fisher index to measure changes in technology, profitability, efficiency, and productivity in response to the adoption of 2 selected best management practices (BMPs) whose objective is to reduce water pollution. We found significant differences across BMPs regarding the direction and the magnitude of their effect on profitability, efficiency and productivity.
From VVU/UKIMWI (HIV/AIDS) to UVIKO-19 (COVID-19): An epistemological analysis of pandemics in Tanzania through Swahili literature
Creators: name: Nicolini, Cristina
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2021

description: This paper deals with a theme that has been a topical issue since the beginning of 2020, the outbreak of coronavirus, by comparison with the philosophical and epistemological aspects of HIV/AIDS as they are reflected in different genres of Swahili literature. I will illustrate findings obtained through my analysis of William Mkufya’s novels dealing with HIV/AIDS in a prospective way with the upcoming literature dealing with the Covid-19 pandemic. The conclusions I have drawn from the analysis of the philosophical novels, by the Tanzanian intellectual William Mkufya, will be the departure point for my follow-up research on the epistemological, ontological and phenomenological aspects of Covid-19 in Tanzania through different genres of Swahili literature. The potential objectives of this forthcoming research will be the following: firstly, to establish a fictional genre that articulates knowledge about Covid-19; secondly, to explore the evolution of Swahili language used to communicate messages on Covid-19; thirdly, to illustrate the changes undergone by literature after the impact of the Covid-19 outbreak; and finally, to investigate the philosophical perspectives characterising this literary stream: Humanist or post-humanist?
description: Kervan. International Journal of African and Asian Studies, V. 25 N. 2 (2021): Kervan
Topological Gradient-based Competitive Learning
Creators: name: Barbiero, Pietro
name: Ciravegna, Gabriele
name: Randazzo, Vincenzo
name: Cirrincione, Giansalvo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Topological learning is a wide research area aiming at uncovering the mutual spatial relationships between the elements of a set. Some of the most common and oldest approaches involve the use of unsupervised competitive neural networks. However, these methods are not based on gradient optimization which has been proven to provide striking results in feature extraction also in unsupervised learning. Unfortunately, by focusing mostly on algorithmic efficiency and accuracy, deep clustering techniques are composed of overly complex feature extractors, while using trivial algorithms in their top layer. The aim of this work is to present a novel comprehensive theory aspiring at bridging competitive learning with gradient-based learning, thus allowing the use of extremely powerful deep neural networks for feature extraction and projection combined with the remarkable flexibility and expressiveness of competitive learning. In this paper we fully demonstrate the theoretical equivalence of two novel gradient-based competitive layers. Preliminary experiments show how the dual approach, trained on the transpose of the input matrix i.e. $X^T$, lead to faster convergence rate and higher training accuracy both in low and high-dimensional scenarios.
description: 12 pages, 20 figures
Inventário Macroeconômico do Governo Lula
Creators: name: Silva, Jose Maria Alves Da
name: Coronel, Daniel Arruda
name: Silva, Jose Maria Alves Da
name: Coronel, Daniel Arruda
Publisher: name: Unknown
Year: 2010
Subjects: subject: Political Economy
subject: Brazilian economy
subject: Macroeconomic policy
subject: Public Sector
subject: International Finances

description: Based on analysis of Brazilian economic indicators in the period 1995-2010, this paper aims to establish a comparative evaluation between FHC and Lula governments. The results indicate that the main macroeconomic and social variables as well as public finance indicators and external financial situation of the country showed a more virtuous behavior during Lula’s government. It is noticed that, especially regarding to macroeconomic policies, Lula did not cause significant changes in relation to what was already being implemented at the end of FHC government. Therefore, most of the results should not be attributed to the superiority of management but to the fact that the international economic environment was more favorable to Brazil in the period of 2003-2010 than in 1995-2002. Considering the significant differences in the economic numbers, the paper presents some reasons why it is possible to say that both governments left much to be done in other aspects of Brazilian social and economic reality, mainly regarding the absence of a national strategic plan able to initiate a process of structural and institutional changes that can effectively put Brazil on a way already covered by developed countries.
Deconfinement and degrees of freedom in $pp$ and $A-A$ collisions at LHC energies
Creators: name: Mishra, Aditya N
name: Paić, Guy
name: Pajares, C.
name: Scharenberg, R. P.
name: Srivastava, B. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present the extraction of the temperature by analyzing the charged particle transverse momentum spectra in lead-lead (Pb-Pb) and proton-proton (${\bf pp}$) collisions at LHC energies from the ALICE Collaboration using the Color String Percolation Model (CSPM). From the measured energy density ${\bm \varepsilon}$ and the temperature T the dimensionless quantity ${\bm \varepsilon/}T^{4}$ is obtained to get the degrees of freedom (DOF), ${\bm \varepsilon}/T^{4}$ = DOF ${ π^{2}}$/30. We observe for the first time a two-step behavior in the increase of DOF, characteristic of deconfinement, above the hadronization temperature at temperature $\sim$ 210 MeV for both Pb-Pb and ${\bf pp}$ collisions and a sudden increase to the ideal gas value of $\sim $ 47 corresponding to three quark flavors in the case of Pb-Pb collisions.
description: 7 pages and 4 figures
Curriculum Enhancement and Reform to Meet the Needs of Smallholder Farmers in Developing Countries: Survey of Literature
Creators: name: Maredia, Mywish K.
name: Maredia, Mywish K.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural and Food Policy
subject: International Development
subject: Labor and Human Capital
subject: Research and Development/Tech Change/Emerging Technologies
subject: Teaching/Communication/Extension/Profession
subject: Tertiary education
subject: Curriculum reform
subject: Training
subject: Capacity building
subject: Agricultural development
subject: Developing countries

description: The agricultural education system plays an important role in developing knowledge resources and preparing well-trained individuals and the next generation of labor force that becomes part of the public sector (government), the private sector (entrepreneurs, farm producers, agri-business entities) and the NGOs. An education system that is innovative and responsive to the complex and rapidly changing work environment is critical to ensure the effectiveness of all the institutions that contribute to agricultural development agenda. To make the education system responsive requires developing and implementing curriculum and teaching programs that are relevant to the production needs and employment demands of the agricultural sector. This paper reviews the literature on experiences gained in the development of innovative and demand-driven curriculum to make the postsecondary agricultural education system serve the needs of smallholder farmers in developing countries. The paper reviews the desired characteristics of the formal post-secondary educational system to be effective in fulfilling its role in supplying well-trained and productive work force for the agricultural economy. The current general state of agricultural curriculum in developing countries is reviewed with respect to these desired characteristics. The paper also presents a review of experiences gained in implementing different approaches to develop, enhance and reform agricultural curriculum, identifies constraints, challenges and successful examples of such approaches, and derives recommendations for ways forward.
Additional file 2 of Effects of snack portion size on anticipated and experienced hunger, eating enjoyment, and perceived healthiness among children
Creators: name: Schwartz, Camille
name: Lange, Christine
name: Hachefa, Celia
name: Cornil, Yann
name: Nicklaus, Sophie
name: Chandon, Pierre
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Statistics
subject: FOS: Mathematics
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: Table S1. Separate mixed model regression coefficients (SE) for each food and each rating of the three dependent variables.
Efficient and transparent haptic rendering of rigid body motion with constraints
Creators: name: Constantinescu, Daniela
Publisher: name: University of British Columbia
Year: 2009

description: This work presents general purpose simulation and control techniques for efficient and transparent haptic rendering of rigid body motion with constraints. Transparent interaction is achieved by enabling users to feel collisions and to manipulate both virtual objects and virtual linkages. Efficient rendering is accomplished through fast approximations of rigid body interaction implemented in a local model with haptic performance. Hapic rendering of impacts is based on a new representation of rigid body contact. In this representation, contacts are infinitely stiff when they arise and have limited stiffness thereafter. Multiple impacts are resolved simultaneously, in a manner consistent with conservation of energy principles and with the force capabilities of the haptic device. Haptic rendering of impacts is beneficial in training simulators for dental procedures and bone surgeries, as well as CAD and virtual prototyping systems with force feedback. Realistic linkage manipulation is enabled by permitting users to operate linkages from any link and through singularities while restricting their motion according to the virtual environment geometry and the linkage topology. Linkage topology is imposed on users through penalizing users' departure from the configuration manifold of the virtual linkage. Operation of links with insufficient degrees of freedom is important in applications like training for laparoscopy, where the scope limits the tool motion at the entry point. Efficient rendering of rigid body motion with constraints is enabled by interfacing the device to a simulation through a local model of interaction. The model comprises constraints imposed on the virtual tool by virtual objects within an e-active neighborhood of the virtual tool and a dynamic proxy of the virtual tool. This model is the first that can be used to constrain both the translation and the rotation of the device and to add realistic forces to virtual environments generated using any commercial simulation package with interactive performance. The model is beneficial in consumer-grade haptic applications, because it allows easy development of haptic applications by users without detailed haptic knowledge. It can also be used to enable cooperative haptic manipulations in applications that involve two-handed operations and/or multiple users.
Agricultural Productivity and Policies in Sub-Saharan Africa
Creators: name: Yu, Bingxin
name: Nin Pratt, Alejandro
name: Yu, Bingxin
name: Nin Pratt, Alejandro
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural and Food Policy
subject: International Development
subject: Productivity Analysis
subject: agriculture
subject: efficiency
subject: Malmquist index
subject: total factor productivity
subject: technical change
subject: Sub-Saharan Africa
subject: policy

description: We analyze the evolution of Sub-Saharan Africa’s agricultural total factor productivity (TFP) over the past 45 years, looking for evidence of recent changes in growth patterns using an improved nonparametric Malmquist index. Our TFP estimates show a remarkable recovery in the performance of Sub-Saharan Africa’s agriculture between 1984 and 2006 after a long period of poor performance and decline. That recovery is the consequence of improved efficiency in production resulting from changes in the output structure and an adjustment in the use of inputs. Policy interventions, including fiscal, trade and sector specific policies, appear to have played an important role in improving agriculture’s performance. Despite the improved agricultural performance, SSA economies face serious challenges to sustain growth. Among these are the small contribution of technical change to TFP growth in the past, the large tax burden imposed by remaining distortions, and the challenge of population growth.
Electronic structure, vibrational stability, infra-red, and Raman spectra of B24N24 cages
Creators: name: Zope, Rajendra R.
name: Baruah, Tunna
name: Pederson, Mark R.
name: Dunlap, Brett I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We examine the vibrational stability of three candidate structures for the B24N24 cage and report their infra-red (IR) and Raman spectra. The candidate structures considered are a round cage with octahedral O symmetry, a cage with S_4 symmetry that satisfies the isolated square rule, and a cage of S_8 symmetry, which combines the caps of the (4,4) nanotube, and contains two extra squares and octagons. The calculations are performed within density functional theory, at the all electron level, with large basis sets, and within the generalized gradient approximation. The vertical ionization potential (VIP) and static dipole polarizability are also reported. The S_4 and S_8 cages are energetically nearly degenerate and are favored over the O cage which has six extra octagons and squares. The IR and Raman spectra of the three clusters show notable differences providing thereby a way to identify and possibly synthesize the cages.
description: (Uses Elsevier style file; To appear in Chemical Physics Letters)
Use of Direct Marketing Strategies by Farmers and Their Impact on Farm Business Income
Creators: name: Uematsu, Hiroki
name: Mishra, Ashok K.
name: Uematsu, Hiroki
name: Mishra, Ashok K.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Farm Management
subject: Production Economics
subject: direct marketing strategies
subject: count data
subject: gross cash income
subject: quantile regression

description: Direct marketing strategies increasingly have been recognized as a viable business option in U.S. agriculture as they allow producers to receive a better price by selling products directly to consumers. The objective of this study is twofold. Using a national survey, we first estimated a zero-inflated negative binomial model to identify factors affecting the total number of direct marketing strategies adopted by farmers. Then we estimated a quantile regression model to assess the impact of the intensity of adoption of direct marketing strategies on gross cash farm income. The results show that the intensity of adoption has no significant impact on gross cash farm income and that participation in farmers markets is negatively correlated with gross cash farm income at all five quantiles estimated.
Structure preserving algorithms for simulation of linearly damped acoustic systems
Creators: name: Chatziioannou, Vasileios
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Energy methods for constructing time-stepping algorithms are of increased interest in application to nonlinear problems, since numerical stability can be inferred from the conservation of the system energy. Alternatively, symplectic integrators may be constructed that preserve the symplectic form of the system. This methodology has been established for Hamiltonian systems, with numerous applications in engineering problems. In this paper an extension of such methods to non-conservative acoustic systems is presented. Discrete conservation laws, equivalent to that of energy-conserving schemes, are derived for systems with linear damping, incorporating the action of external forces. Furthermore the evolution of the symplectic structure is analysed in the continuous and the discrete case. Existing methods are examined and novel methods are designed using a lumped oscillator as an elemental model. The proposed methodology is extended to the case of distributed systems and exemplified through a case study of a vibrating string bouncing against a rigid obstacle.
Angle and Polarization Selective Spontaneous Emission in Dye-doped Metal/Insulator/Metal Nanocavities
Creators: name: Caligiuri, Vincenzo
name: Biffi, Giulia
name: Palei, Milan
name: Martin-Garcia, Beatriz
name: Pothuraju, Renuka Devi
name: Bretonnière, Yann
name: Krahne, Roman
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Directing and polarizing the emission of a fluorophore is of fundamental importance in the perspective of novel photonic sources based on emerging nano-emitter technologies. These two tasks are usually accomplished by a sophisticated and demanding structuring of the optical environment in which the emitter is immersed, or by non-trivial chemical engineering of its geometry and/or band structure. In this paper, the wavelength and polarization selective spontaneous emission from a dye-embedded in a Metal/Insulator/Metal (d-MIM) nanocavity is demonstrated. A push-pull chromophore with large Stokes shift is embedded in a MIM cavity whose resonances are tuned with the spectral emission band of the chromophore. Angular and polarization resolved spectroscopy experiments reveal that the radiated field is reshaped according to the angular dispersion of the nanocavity, and that its spectrum manifests two bands with different polarization corresponding to the p- and s-polarized resonances of the cavity. The d-MIM cavities are a highly versatile system for polarization and wavelength division multiplexing applications at the nanoscale, as well as for near-field focused emission and nanolenses.
description: 18 pages, 4 figures
Modi e il Mahatma: la manipolazione del messaggio e della figura di Gandhi nel discorso politico del primo ministro indiano
Creators: name: Bobbio, Tommaso
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2021

description: This article analyses the intriguing relationship between Narendra Modi and Mohandas Karamchand Gandhi. Since Modi's beginnings as Chief Minister of Gujarat in 2001, Gandhi's image and discourses have been a constant reference in the BJP leader's political rhetoric. Through an analysis of Modi's discursive landmarks and of the recurrent themes in his propaganda, this article explores the way Modi has juxtaposed himself to the figure of the Mahatma. It suggests that Gandhi played a central role in the construction of an imagery of India based on a partial and stereotyped reading of the past, functional to claim for himself and for the country a role of moral leadership in the global world. In this framework, the omnipresent Gandhi in Modi's discursive and visual rhetoric has become a political seal to disguise an exclusivist politics, intolerant of dissent and closed to diversity and dialogue.
description: Kervan. International Journal of African and Asian Studies, V. 25 N. 2 (2021): Kervan
Additional file 3 of Effects of snack portion size on anticipated and experienced hunger, eating enjoyment, and perceived healthiness among children
Creators: name: Schwartz, Camille
name: Lange, Christine
name: Hachefa, Celia
name: Cornil, Yann
name: Nicklaus, Sophie
name: Chandon, Pierre
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Statistics
subject: FOS: Mathematics
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 3: Analysis S1. Comparison of children who completely vs. did not completely eat the portions. Choice of food portion made by the children at the end of the first session. Individual-level analyses of the effects of portion sizes on children’s anticipated and experienced ratings.
T’ambaaro phonology
Creators: name: Orkaydo, Ongaye Oda
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2021

description: This article describes the phonology of T’ambaaro, a Highland East Cushitic language of the Afro-asiatic phylum spoken in southwest Ethiopia. The language has twenty-four consonant phonemes, and five oral vowels and one nasal vowel whose phonemic status is not safely established. The oral vowels are typical Cushitic vowels occurring short and long. In T’ambaaro, except the phonemes/h/ and /f/ which never occur geminate, the rest of the consonant phonemes appeargeminate, but that is only in word medial position. The palatal nasal and the voiceless, alveo-palatal affricate never occur as a single consonant, but only as a geminate consonant. Gemination and vowel length are phonemic in the language. Consonant cluster are allowed only in word medial position with a maximum of two consonants. Some consonants and vowels appear in free variation, but it is very difficult to formulate a systematic rule that captures the phenomenon. The phonology has phonological processes such as assimilation, epenthesis, deletion, and metathesis. T’ambaaro is not a tonal language, but seems a pitch accent language which is difficult to establish a rule for at this stage.
description: Kervan. International Journal of African and Asian Studies, V. 25 N. 2 (2021): Kervan
Biomachines, metal bodies and masochistic masculinity in post-war Japan
Creators: name: Capponcelli, Luca
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2021

description: Advances in technoscience and biotechnology have blurred the boundaries between body and matter, emphasising the urgency of rethinking the intertwining of anthropocentrism, Eurocentrism and androcentrism. This repositing also involves the relationship between the subject and technological otherness. For example, in the representation of cyborgs, Donna Haraway identifies the metaphor of overcoming biological determinism. Simultaneously, in cinematic and literary imagery, cybernetic bodies end up representing contemporary society’s changes, fears and desires, exploring new paradigms of subjectivity. This paper focuses on cyborg identities in Japanese imagery through the novels Kachikujin Yapoo (Yapoo the Human Cattle, 1956) by Shōzō Numa, Nippon Apacchi Zoku (The Japanese Apache Tribe, 1964) by Komatsu Sakyō and the film Tetsuo (Iron Man, 1989) by director Tsukamoto Shin'ya. Each of these works presents the search for transhuman and post-human subjectivities in Japanese science fiction imagery from the post-war to the postmodern period and share a masochistic representation of male bodies deeply interwoven with the question of identity. Starting from Tatsumi Takayuki’s theorization of «creative masochism» and referring to the Deleuzian view on masochism, the aim of this paper is to investigate the connections between male masochism and Japanese cyborg imagery of the post-war period.
description: Kervan. International Journal of African and Asian Studies, V. 25 N. 2 (2021): Kervan
Hydrodynamic and hydromagnetic energy spectra from large eddy simulations
Creators: name: Haugen, N. E. L.
name: Brandenburg, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Direct and large eddy simulations of hydrodynamic and hydromagnetic turbulence have been performed in an attempt to isolate artifacts from real and possibly asymptotic features in the energy spectra. It is shown that in a hydrodynamic turbulence simulation with a Smagorinsky subgrid scale model using 512^3 meshpoints two important features of the 4096^3 simulation on the Earth simulator (Kaneda et al. 2003, Phys. Fluids 15, L21) are reproduced: a k^{-0.1} correction to the inertial range with a k^{-5/3} Kolmogorov slope and the form of the bottleneck just before the dissipative subrange. Furthermore, it is shown that, while a Smagorinsky-type model for the induction equation causes an artificial and unacceptable reduction in the dynamo efficiency, hyper-resistivity yields good agreement with direct simulations. In the large-scale part of the inertial range, an excess of the spectral magnetic energy over the spectral kinetic energy is confirmed. However, a trend towards spectral equipartition at smaller scales in the inertial range can be identified. With magnetic fields, no explicit bottleneck effect is seen.
description: 8 pages, 9 figs, Phys. Fluids (in press)
Semantic frames of tašxis (“identification”) in Persian: A corpus-based study
Creators: name: Imani, Zolfa
name: Badakhshan, Ebrahim
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2021

description: One of the lexical conceptual relations in language is the polysemy relation by which Finch (2000) and Saeed (2009) mean that a word or lexeme has more than one meaning. In polysemy, out of the polysemous word, multiple meanings are interpreted which are closely related to each other. According to what Richards and Schmidt (1985) define, the semantic units composed of a sequence of events or affairs which are relevant to specific situations evoke their own semantic frames. In fact, a frame is a representation of the context including the sentence in which linguistic items are presented (Matthews, 1997). The concept of Frame was primarily proposed by Fillmore (1977; 1982; 1985) in 1970s. The present research has been done in two phases with the goal of comparing the semantic frames of the word tašxis (Identification) by determining the relationship among them in a way that first the sentences containing it were looked up in the Persian Corpus of Bijankhan. Then, the sentences including tašxis (Identification) were separated from the sentences comprising different inflectional forms of the verb tašxis dādan (to identify). Afterwards, each sentence was converted into its equivalent noun/adjective phrase. In the second phase, the English equivalents of Identification in each phrase were obtained from three different Persian to English dictionaries to be able to extract the semantic frames for them. After extracting the frames, each English counterpart called Lexical Unit in the FrameNet alongside its semantic frame was compared to other frames and ultimately the following conclusions were drawn: the contexts where Identification is used are classified into 5 categories as linguistics, medical science, law, security checking and politics. Regarding the same usage of some words in two categories, four semantic frames are evoked out of five contexts all of which share the concept of the capability of making distinction and that of making decision.
description: Kervan. International Journal of African and Asian Studies, V. 25 N. 2 (2021): Kervan
Self-similar Bianchi models: II. Class B models
Creators: name: Apostolopoulos, Pantelis S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In a companion article (referred hearafter as paper I) a detailed study of the simply transitive Spatially Homogeneous (SH) models of class A concerning the existence of a simply transitive similarity group has been given. The present work (paper II) continues and completes the above study by considering the remaining set of class B models. Following the procedure of paper I we find all SH models of class B subjected only to the minimal geometric assumption to admit a proper Homothetic Vector Field (HVF). The physical implications of the obtained geometric results are studied by specialising our considerations to the case of vacuum and $γ-$law perfect fluid models. As a result we regain all the known exact solutions regarding vacuum and non-tilted perfect fluid models. In the case of tilted fluids we find the \emph{general }self-similar solution for the exceptional type VI$_{-1/9}$ model and we identify it as equilibrium point in the corresponding dynamical state space. It is found that this \emph{new} exact solution belongs to the subclass of models $n_α^α=0$, is defined for $γ\in (\frac 43,\frac 32)$ and although has a five dimensional stable manifold there exist always two unstable modes in the restricted state space. Furthermore the analysis of the remaining types, guarantees that tilted perfect fluid models of types III, IV, V and VII$_h$ cannot admit a proper HVF strongly suggesting that these models either may not be asymptotically self-similar (type V) or may be extreme tilted at late times. Finally for each Bianchi type, we give the extreme tilted equilibrium points of their state space.
description: Latex, 15 pages, no figures; to appear in Classical Quantum Gravity (uses iopart style/class files); (v2) minor corrections to match published version
Shakespeare (way down) along the Nile: How a pidgin adaptation of Cymbeline gave South Sudan its theatre
Creators: name: Acquaviva, Graziella
name: Morgani, Ilaria
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2021

description: Aim of the paper is to analyse the gradual development of Southern Sudanese theatre, focusing on the development of Juba Arabic in the light of the contemporary translation of Shakespeare’s Cymbeline by the prominent intellectual Joseph Abuk, who is also the father of the South Sudan national anthem. The paper is divided in two parts: in the first one, the authors investigate the history of theatre in Sudan and South Sudan, considering the historical background that influenced it with a focus on the adaptations of Shakespeare’s works in Arab and African countries. The second part is dedicated to the relation between languages and ethnicity in South Sudan, thus offering a brief overview of its socio-linguistic landscape. A major attention is given to Abuk’s adaptation of Shakespeare’s Cymbeline from English into Juba Arabic (Cymbeline: li katib Shakespeare) for the South Sudan Theatre Organization (SSTO). This second part also comprises an appendix, which provides a brief linguistic analysis of some selected parts from the 2012 adaptation, as part of the recorded play Cymbeline (London, June 2012), performed by the South Sudan Theatre Organization (SSTO). The original Abuk’s play script (2012) is yet unpublished, while a full video-recording of the play is available at: https://globeplayer.tv/videos/Cymbeline
description: Kervan. International Journal of African and Asian Studies, V. 25 N. 2 (2021): Kervan