cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cosmological non-Gaussian Signature Detection: Comparing Performance of Different Statistical Tests
Creators: name: Jin, J.
name: Starck, J. -L.
name: Donoho, D. L.
name: Aghanim, N.
name: Forni, O.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Currently, it appears that the best method for non-Gaussianity detection in the Cosmic Microwave Background (CMB) consists in calculating the kurtosis of the wavelet coefficients. We know that wavelet-kurtosis outperforms other methods such as the bispectrum, the genus, ridgelet-kurtosis and curvelet-kurtosis on an empirical basis, but relatively few studies have compared other transform-based statistics, such as extreme values, or more recent tools such as Higher Criticism (HC), or proposed `best possible' choices for such statistics. In this paper we consider two models for transform-domain coefficients: (a) a power-law model, which seems suited to the wavelet coefficients of simulated cosmic strings; and (b) a sparse mixture model, which seems suitable for the curvelet coefficients of filamentary structure. For model (a), if power-law behavior holds with finite 8-th moment, excess kurtosis is an asymptotically optimal detector, but if the 8-th moment is not finite, a test based on extreme values is asymptotically optimal. For model (b), if the transform coefficients are very sparse, a recent test, Higher Criticism, is an optimal detector, but if they are dense, kurtosis is an optimal detector. Empirical wavelet coefficients of simulated cosmic strings have power-law character, infinite 8-th moment, while curvelet coefficients of the simulated cosmic strings are not very sparse. In all cases, excess kurtosis seems to be an effective test in moderate-resolution imagery.
description: Manuscript will all figures can be download at: http://jstarck.free.fr/HC04.pdf
High Pressure X-ray Diffraction Study of MgMn2O4 Tetragonal Spinel
Creators: name: Malavasi, Lorenzo
name: Tealdi, Cristina
name: Amboage, Monica
name: Mozzati, M. Cristina
name: Flor, Giorgio
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The phase stability of the MgMn2O4 spinel has been studied by means of high-pressure X-ray diffraction for pressures up to 30 GPa. Two samples with different inversion degrees have been considered. Both spinels undergo a phase transition towards an orthorhombic structure (CaMn2O4-type). For the more inverted sample the transition pressure is at least 1 GPa lower with respect to that of the less inverted spinel. Also the volume contraction, relative compressibility and density trends are different for the two samples. These variations have been explained according to differences in the cation distribution. and electronic properties of the samples.
description: 12 pages; 4 Figures presented at the SRMS-4
Observing the "quantum Cheshire cat" effect with noninvasive weak measurement
Creators: name: Kim, Yosep
name: Im, Dong-Gil
name: Kim, Yong-Su
name: Han, Sang-Wook
name: Moon, Sung
name: Kim, Yoon-Ho
name: Cho, Young-Wook
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: One of the common conceptions of nature, typically derived from the experiences with classical systems, is that attributes of the matter coexist with the substance. In the quantum regime, however, the quantum particle itself and its physical property may be in spatial separation, known as the quantum Cheshire cat effect. While there have been several reports to date on the observation of the quantum Cheshire cat effect, all such experiments are based on first-order interferometry and destructive projection measurement, thus allowing simple interpretation due to measurement-induced disturbance and also subject to trivial interpretation based on classical waves. In this work, we report a genuine experimental observation of the quantum Cheshire cat effect with noninvasive weak quantum measurement as originally proposed. The use of the weak-measurement probe has allowed us to identify the location of the single-photon and that of the disembodied polarization state in a quantum interferometer. We furthermore elucidate the paradox of the quantum Cheshire cat effect as quantum interference of the transition amplitudes for the photon and the polarization state which are directly obtained from the measurement outcomes or the weak values.
Old Armenian literary sources on Peter the Iberian
Creators: name: Chantladze, Natia
Publisher: name: figshare
Year: 2021
Subjects: Literature
History

description: Natia Chantladze (Ivane Javakhishvili Tbilisi State University).
THE CAUCASUSBETWEEN EAST AND WEST, II
OLD ARMENIAN LITERARY SOURCES ON PETER THEIBERIAN
The main sources about Peter the Iberian were written in Greek: anonymous Life of Peterthe Iberian, Zacharias Rhetor’s Ecclesiastical History, and John Rufus’ Plerophories, preservedonly in Syriac translations and Georgian (there exist two Georgian editions for the Life ofPeter the Iberian) and Armenian versions originating from them.Another noteworthy source is the Chronicle by Michael the Syrian. The 12th centuryauthor’s writing, which is a kind of world history, contains a small narration about Peter theIberian’s life and a shortened version of the Plerophories. Even though, Michael the Syrian’sdata is entirely dependent on earlier Syriac sources, it is important for us, because it is thanksto this work that Peter the Iberian entered the Armenian theological tradition.The main subject of this paper is to analyze the reference to Peter the Iberian preservedin the Armenian literary sources and compare them to the data of the Syriac and Georgiantexts in order to emphasize the information which is preserved only in the Armenian tradition;to see how it differs from the Syriac origin, and after this, to evaluate the reasons for thesedifferences.
Discovery of Four New Clusters in the Cygnus Cloud
Creators: name: Qin, Song-mei
name: Li, Jing
name: Chen, Li
name: Zhong, Jing
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the discovery of four new open clusters (named as QC 1, QC 2, QC3 and QC 4) in the direction of Cygnus Cloud and select their members based on five astrometric parameters (l, b, \varpi, μ^*_α, μ_δ) of Gaia DR2. We also derive their astrophysical parameters for each new cluster. Structure parameters are generated by fitting the radial density distribution with King's profile. Using solar metallicity, we performed isochrone-fitting on their purified color-magnitude diagrams (CMDs) to achieve the age of the clusters. The known cluster NGC 7062 at adjacent area is chosen to verify our identification process. The estimated distance, reddening and age of NGC 7062 are in good agreement with the literature.
description: 10 pages, 4 figures, 3 tables. Accepted for publication in Research in Astronomy and Astrophysics
Trust in Scientists and Food Manufacturers: Implications for the Public Support of Biotechnology
Creators: name: James, Harvey S.
name: James, Harvey S.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agribusiness
subject: Food Consumption/Nutrition/Food Safety
subject: biotechnology
subject: genetic modification
subject: public support of biotechnology
subject: public trust
subject: trust

description: An analysis of data from the U.S. Biotechnology Study, 1997S1998 reveals that few variables affect public trust in scientists, while variables representing perceived benefits, risks, trustworthiness, and competence affect trust in food manufacturers on matters of biotechnology. Both trust in scientists and trust in food manufacturers have a large and important effect on public support for biotechnology, although trust in scientists is found to be more important than trust in food manufacturers. Findings of this analysis suggest that trust in scientists is relatively generalized, while trust in food manufacturers is particularized.
Supersymmetry from Boundary Conditions
Creators: name: von Gersdorff, G.
name: Pilo, L.
name: Quiros, M.
name: Riotto, A.
name: Sanz, V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study breaking and restoration of supersymmetry in five-dimensional theories by determining the mass spectrum of fermions from their equations of motion. Boundary conditions can be obtained from either the action principle by extremizing an appropriate boundary action (interval approach) or by assigning parities to the fields (orbifold approach). In the former, fields extend continuously from the bulk to the boundaries, while in the latter the presence of brane mass-terms cause fields to jump when one moves across the branes. We compare the two approaches and in particular we carefully compute the non-trivial jump profiles of the wavefunctions in the orbifold picture for very general brane mass terms. We also include the effect of the Scherk-Schwarz mechanism in either approach and point out that for a suitable tuning of the boundary actions supersymmetry is present for arbitrary values of the Scherk-Schwarz parameter. As an application of the interval formalism we construct bulk and boundary actions for super Yang-Mills theory. Finally we extend our results to the warped Randall-Sundrum background.
description: 17 pages, v2: affiliations corrected
Economic Feasibility of Kenaf Production in Three Tennessee Counties
Creators: name: Bazen, Ernest F.
name: Roberts, Roland K.
name: English, Burton C.
name: Bazen, Ernest F.
name: Roberts, Roland K.
name: English, Burton C.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: alternative crop
subject: economic feasibility
subject: enterprise budgeting
subject: kenaf
subject: plant growth modeling
subject: yield response functions

description: Since the 1940s, kenaf has been viewed as a potential source of fiber, mainly for newsprint and high quality paper. Kenaf research has once again risen to the forefront due to the recent USDA tobacco buyout. Many states and farmers dependent upon tobacco revenues have been seeking alternative crops for a number of years. This study seeks to expand the current literature by examining the economic feasibility of growing kenaf within three counties in Tennessee. Nitrogen meta-yield response functions for kenaf and four traditional crops were developed for 30 soils through crop growth simulation modeling and used to compare optimal crop budgets for each soil. Results reveal that kenaf would not compete favorably with traditional crops on any soil at prices below $49/ton, while profit-maximizing farmers could supply as much as 1,385,700 tons of kenaf if the price were $55/ton.
Exploring Heterogeneity in Consumers’ Meat Store Choices in an Emerging Market
Creators: name: Hu, Wuyang
name: Hu, Wuyang
Publisher: name: Unknown
Year: 2006
Subjects: subject: Livestock Production/Industries
subject: Research and Development/Tech Change/Emerging Technologies
subject: heterogeneity
subject: individual-level parameters
subject: logit models
subject: meat store

description: Chinese consumers’ choices among meat stores are examined through a model that can capture consumer heterogeneities both in their opinion of various store attributes and in how much weight they attach to each attribute. This approach not only informs store managers as to what attributes should receive focus for improving their store images, but also provides insight about which specific attribute could be improved to achieve the most effective result. Based on the individual-level parameters obtained through an empirical Bayes analysis, managers or competitors are able to strategically target their store promotions to specific individual consumers based on their demographic characteristics.
Searching for signals of minimal length in extra dimensional models using dilepton production at hadron colliders
Creators: name: Bhattacharyya, Gautam
name: Mathews, Prakash
name: Rao, Kumar
name: Sridhar, K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Theories of quantum gravity suggest the existence of a minimal length scale. It is interesting to speculate what the consequences of the existence of such a length scale would be for models of large extra dimensions, in particular, the ADD model. When ADD model is conflated with the minimal length scale scenario, processes involving virtual exhange of gravitons cease to be ulraviolent divergent. We study the production of dileptons at hadron colliders as an example of a process mediated by virtual gravitons. We find that the bounds we derive on the effective string scale are significantly different (in fact, less stringent) from those derived in the conventional ADD model, both at the upgraded Tevatron and the Large Hadron Collider.
description: Latex, 6 pages, 2 figures; v2: typo in eq.(6) corrected, references added; v3: one footnote and one reference added, to appear in PLB
Multi-biometric liveness detection: A new perspective
Creators: name: OKEREAFOR, KENNETH
name: Osuagwu, Oliver
name: Onime, Clement
Publisher: name: figshare
Year: 2020
Subjects: subject: 80303 Computer System Security
subject: FOS: Computer and information sciences

description: A novel prototype software for multi-modal biometrics is presented as an approach to significantly minimize spoofing and to strengthen the overall security of the biometric authentication process.
One loop photon-graviton mixing in an electromagnetic field: Part 1
Creators: name: Bastianelli, Fiorenzo
name: Schubert, Christian
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Photon-graviton mixing in an electromagnetic field is a process of potential interest for cosmology and astrophysics. At the tree level it has been studied by many authors. We consider the one-loop contribution to this amplitude involving a charged spin 0 or spin 1/2 particle in the loop and an arbitrary constant field. In the first part of this article, the worldline formalism is used to obtain a compact two-parameter integral representation for this amplitude, valid for arbitrary photon energies and background field strengths. The calculation is manifestly covariant througout.
description: 27 pages, final published version (minor corrections)
Demo 3 - Mario Montagud, Isaac Fraile, Einar Meyerson, Sergi Fernández
Creators: name: Montagud, Mario
Publisher: name: figshare
Year: 2020
Subjects: subject: 80111 Virtual Reality and Related Simulation
subject: FOS: Computer and information sciences

description: Title: Open-Source Accessibility-Enabled VR360 Player
Authors: Mario Montagud, Isaac Fraile, Einar Meyerson, Sergi Fernández
Morphology, Environment, and the HI Mass Function
Creators: name: Springob, Christopher M.
name: Haynes, Martha P.
name: Giovanelli, Riccardo
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We exploit a large, complete optical diameter and HI flux limited sample of spiral galaxies with types later than S0a to derive a robust measurement of the HI mass function (HIMF) for masses log(M_HI/M_Sun) > 7.4 which takes into account the effects of local large scale structure. The global HIMF derived for this optically-selected sample is well fit by a Schechter function with alpha = -1.24, log(M* / M_Sun)=9.99, phi* = 3.2 (10^{-3}) Mpc^{-3}. These values match those derived from blind HI surveys to within the estimated uncertainties, yet our estimated HIMF is clearly lower than most other estimates at the lowest masses. We also investigate the variation in the derived HIMF among spiral subclasses, finding a clear distinction between the Schechter parameters found for types Sa-Sc and those Scd and later, in the sense that the HIMF of the latest types is rising at the low mass end, whereas that of the main spiral classes is flat or even declining. We also explore the possible environmental dependence of the HIMF by computing it separately in regimes of differing cosmic density. The HIMFs of higher density regions are found to have flatter low-mass ends and lower values of M* than those of lower density regions, although the statistical significance of the difference is low. We find that the environmental dependence cannot be accounted for by morphological segregation, and must be a consequence of differences among galaxies of the same morphological type but found in different environments. If this dependence is caused by the well known deficiency of galaxies in clusters, then it would suggest that galaxies of small linear optical diameter are characterized by higher HI deficiency, an expectation consistent with gas removal mechanisms such as ram pressure stripping.
description: 11 pages, 12 figures, accepted for publication in ApJ
Comparing hierarchies of total functionals
Creators: name: Normann, Dag
Publisher: name: arXiv
Year: 2005
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.4.1

description: In this paper we consider two hierarchies of hereditarily total and continuous functionals over the reals based on one extensional and one intensional representation of real numbers, and we discuss under which asumptions these hierarchies coincide. This coincidense problem is equivalent to a statement about the topology of the Kleene-Kreisel continuous functionals. As a tool of independent interest, we show that the Kleene-Kreisel functionals may be embedded into both these hierarchies.
description: 28 pages
அகழப்படாத ஆய்வுக்களங்கள்.pdf
Creators: name: Krishan, K.Nagendran
Publisher: name: figshare
Year: 2020
Subjects: subject: 200520 Indian Literature
subject: FOS: Languages and literature
subject: 200519 South-East Asian Literature (excl. Indonesian)

description: "அகழப்படாத ஆய்வுக்களங்கள்" என்பது மதிப்பனூர் என்ற ஊரில் உள்ள நடுகற்கலைப் பற்றி கூறுகிறது.
R-parity violation in split supersymmetry
Creators: name: Gupta, Sudhir Kumar
name: Konar, Partha
name: Mukhopadhyaya, Biswarup
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the recently proposed `split supersymmetry' scenario, the squark and slepton masses are allowed to be at a high scale while the gauginos and Higgsinos are within a TeV. We show that in a theory with broken R-parity, the parameter space of such a scenario allows a situation where the lightest neutralino is still stable on the cosmological scale and can be a dark matter candidate. We also separate the cases where (a) it may be invisible but not a dark matter candidate, or (b) it may decay showing a displaced vertex. It is also emphasized how the constraint on the simultaneous violation of baryon and lepton numbers gets relaxed in this scenario.
description: LaTex 11 pages, 3 figures, uses axodraw. Final version to appear in Phys.Lett.B. Added references and comments. Title changed in journal
Coherent Unit Actions on Operads and Hopf Algebras
Creators: name: Ebrahimi-Fard, Kurusch
name: Guo, Li
Publisher: name: arXiv
Year: 2005
Subjects: subject: Rings and Algebras (math.RA)
subject: Commutative Algebra (math.AC)
subject: Combinatorics (math.CO)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18D50, 17A30, 16W30

description: Coherent unit actions on a binary, quadratic operad were introduced by Loday and were shown by him to give Hopf algebra structures on the free algebras when the operad is also regular with a splitting of associativity. Working with such operads, we characterize coherent unit actions in terms of linear equations of the generators of the operads. We then use these equations to give all possible operad relations that allow such coherent unit actions. We further show that coherent unit actions are preserved under taking products and thus yield Hopf algebras on the free object of the product operads when the factor operads have coherent unit actions. On the other hand, coherent unit actions are never preserved under taking the dual in the operadic sense except for the operad of associative algebras.
Accelerating Federated Learning over Reliability-Agnostic Clients in Mobile Edge Computing Systems
Creators: name: Wu, Wentai
name: He, Ligang
name: Lin, Weiwei
name: Mao, Rui
Publisher: name: arXiv
Year: 2020
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Mobile Edge Computing (MEC), which incorporates the Cloud, edge nodes and end devices, has shown great potential in bringing data processing closer to the data sources. Meanwhile, Federated learning (FL) has emerged as a promising privacy-preserving approach to facilitating AI applications. However, it remains a big challenge to optimize the efficiency and effectiveness of FL when it is integrated with the MEC architecture. Moreover, the unreliable nature (e.g., stragglers and intermittent drop-out) of end devices significantly slows down the FL process and affects the global model's quality Xin such circumstances. In this paper, a multi-layer federated learning protocol called HybridFL is designed for the MEC architecture. HybridFL adopts two levels (the edge level and the cloud level) of model aggregation enacting different aggregation strategies. Moreover, in order to mitigate stragglers and end device drop-out, we introduce regional slack factors into the stage of client selection performed at the edge nodes using a probabilistic approach without identifying or probing the state of end devices (whose reliability is agnostic). We demonstrate the effectiveness of our method in modulating the proportion of clients selected and present the convergence analysis for our protocol. We have conducted extensive experiments with machine learning tasks in different scales of MEC system. The results show that HybridFL improves the FL training process significantly in terms of shortening the federated round length, speeding up the global model's convergence (by up to 12X) and reducing end device energy consumption (by up to 58%).
description: 14 pages, 7 figures, with Appendix
Electron Chirality in Amino Acid Molecules
Creators: name: Senami, Masato
name: Shimizu, Tomoki
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We evaluated the total electron chirality in alanine, serine, and valine, which are molecules that have chiral structures. Previously, it has been considered that the total electron chirality of molecules composed of only light elements cannot be computed within usual computational conditions of relativistic four-component wave functions. In this work, it is shown that the total electron chirality can be calculated if some diffuse functions are added to Gaussian basis sets. This is demonstrated for the H$_2$O$_2$ molecule. By adding diffuse Gaussian functions to basis sets, the total electron chirality of L-alanine, L-serine, and L-valine are evaluated. It is also shown that the total electron chirality is derived by the cancellation between large contributions from each orbital, and the total electron chirality in excited and ionized states is expected to be much larger than that of the ground state.
description: 7 Pages, 3 figures; ver 2, Minor change (a typo is corrected)
Composite sol-gel process for photocatalytic titanium dioxide
Creators: name: Keshmiri, Mehrdad
Publisher: name: University of British Columbia
Year: 2009

description: Photocatalytic TiO₂ decomposes organic and inorganic pollutants upon irradiation with UV light. TiO₂ thin films and powder suspensions are used for purification treatments, but small surface area of TiO₂ films, and difficult filtration of powders are the two major drawbacks in application of photocatalytic TiO₂. The major objective of this work was to develop a novel process to combine the thin film coatings and the fine (sub-micron) powder anatase TiO₂ to provide high photocatalytic efficiency thick films and self-supported membranes. The microstructural properties and photocatalytic efficiency of the developed materials were characterized and compared with that of the conventional TiO₂ coatings and powders. Photocatalytic activity of CSG TiO₂ was measured through the ability to decompose organic compounds (trichloroethane, dioxane, toluene), as well as to destroy bacteria. The major achievement of this work is the development of a process wherein structurally sound, thick films and membranes of CSG anatase photocatalytic TiO₂ can be produced in reproducible way. A novel method for the synthesis of monodispersed anatase TiO₂ microspheres through colloidal precipitation has also been established. The microspheres were used as filler TiO₂ in the composite microstructure, bonded with sol-gel derived TiO₂, to produce the composite sol-gel (CSG) TiO₂. A sol-gel-assisted sintering model for the CSG thick films and self-supported membranes was established and validated by experimental data. The model has the ability to predict the sintering behavior of the CSG- TiO₂, in terms of the reduction of specific surface area versus the time of heating, particularly at the initial and intermediate stages of the sintering.
Analysing a built-in advantage in asymmetric darts contests using causal machine learning
Creators: name: Goller, Daniel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Econometrics (econ.EM)
subject: FOS: Economics and business

description: We analyse a sequential contest with two players in darts where one of the contestants enjoys a technical advantage. Using methods from the causal machine learning literature, we analyse the built-in advantage, which is the first-mover having potentially more but never less moves. Our empirical findings suggest that the first-mover has an 8.6 percentage points higher probability to win the match induced by the technical advantage. Contestants with low performance measures and little experience have the highest built-in advantage. With regard to the fairness principle that contestants with equal abilities should have equal winning probabilities, this contest is ex-ante fair in the case of equal built-in advantages for both competitors and a randomized starting right. Nevertheless, the contest design produces unequal probabilities of winning for equally skilled contestants because of asymmetries in the built-in advantage associated with social pressure for contestants competing at home and away.
The classification of symmetry protected topological phases of one-dimensional fermion systems
Creators: name: Bourne, Chris
name: Ogata, Yoshiko
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Operator Algebras (math.OA)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We introduce an index for symmetry protected topological (SPT) phases of infinite fermionic chains with an on-site symmetry given by a finite group $G$. This index takes values in $\mathbb{Z}_2 \times H^1(G,\mathbb{Z}_2) \times H^2(G, U(1)_{\mathfrak{p}})$ with a generalized Wall group law under stacking. We show that this index is an invariant of the classification of SPT phases. When the ground state is translation invariant and has reduced density matrices with uniformly bounded rank on finite intervals, we derive a fermionic matrix product representative of this state with on-site symmetry.
description: To appear in Forum of Mathematics, Sigma
Gate-tunable imbalanced Kane-Mele model in encapsulated bilayer jacutingaite
Creators: name: Rademaker, Louk
name: Gibertini, Marco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study free, capped and encapsulated bilayer jacutingaite Pt$_2$HgSe$_3$ from first principles. While the free standing bilayer is a large gap trivial insulator, we find that the encapsulated structure has a small trivial gap due to the competition between sublattice symmetry breaking and sublattice-dependent next-nearest-neighbor hopping. Upon the application of a small perpendicular electric field, the encapsulated bilayer undergoes a topological transition towards a quantum spin Hall insulator. We find that this topological transition can be qualitatively understood by modeling the two layers as uncoupled and described by an imbalanced Kane-Mele model that takes into account the sublattice imbalance and the corresponding inversion-symmetry breaking in each layer. Within this picture, bilayer jacutingaite undergoes a transition from a 0+0 state, where each layer is trivial, to a 0+1 state, where an unusual topological state relying on Rashba-like spin orbit coupling emerges in only one of the layers.
description: 10 pages, 5 figures
Impacts of Soybean Imports on Indian Processors, Farmers, and Consumers
Creators: name: Persaud, Suresh Chand
name: Dohlman, Erik
name: Persaud, Suresh Chand
name: Dohlman, Erik
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: India
subject: oilseeds
subject: processing cost
subject: soybeans
subject: trade liberalization

description: India is one of the world’s largest importers of vegetable oils in part because of low domestic oilseed production, and tariff and nontariff barriers preventing oilseed imports. Simulation results indicate that India could lower its barriers to soybean imports without adversely affecting farmers, since imports are economically attractive to crushers even when subject to modest tariffs which sustain pre-liberalization farm and wholesale prices. Soybean processors in India achieve higher rates of capacity utilization and lower unit costs using imported oilseeds. Moreover, it is possible to partially redistribute to consumers the sizable gains processors experience by lowering the soybean oil tariff.
Focus on Babies: A Note on Parental Attitudes and Preferences for Organic Babyfood
Creators: name: Maguire, Kelly B.
name: Owens, Nicole N.
name: Simon, Nathalie B.
name: Maguire, Kelly B.
name: Owens, Nicole N.
name: Simon, Nathalie B.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agribusiness
subject: Food Consumption/Nutrition/Food Safety
subject: children’s health
subject: organic foods
subject: risk perceptions

description: The motivation behind purchases of organic foods is not necessarily straightforward. Some individuals may purchase organic foods for health reasons, while others may do so because of concern for the environment. The issue is even more complicated when thinking about babyfood. Because of children’s developing systems, parents and other care givers could be more concerned about the effects of pesticides in conventional foods. However, this issue is relatively unexplored. This study reports results from focus groups with parents of small children regarding their attitudes and preferences, including risk perceptions, toward organic and conventional babyfood.
Case Studies of Strategic Alliances in U.S. Beef Production
Creators: name: Gillespie, Jeffrey M.
name: Bu, Angel
name: Boucher, Robert W.
name: Choi, Won-Jun
name: Gillespie, Jeffrey M.
name: Bu, Angel
name: Boucher, Robert W.
name: Choi, Won-Jun
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agribusiness
subject: Livestock Production/Industries
subject: cattle industry
subject: industry structure
subject: risk
subject: strategic alliances
subject: transaction costs

description: Calf marketing, commercial beef carcass, and natural/implant-free beef strategic alliances were examined via case study to determine alliance structure and whether each addressed risk, transaction costs, capital availability, and other concerns. All alliances were structured differently through vertical or horizontal coordination, and each had been established within the past 12 years. Alliance administrators reported that an advantage to cow-calf producers was higher cattle prices received relative to producers outside the alliances. The alliances reduced transaction costs and increased information flow among segments. Alliances did not specifically address risk or increased access to capital for technology adoption or expansion purposes.
Dynamical and point symmetry of the Kondo effect in triangular quantum dot
Creators: name: Kuzmenko, Tetyana
name: Kikoin, Konstantin
name: Avishai, Yshai
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this work we concentrate on the {\it point symmetry} of triangular triple quantum dot and its interplay with the {\it spin rotation symmetry} in the context of Kondo tunneling through this kind of artificial molecule. A fully symmetric triangular triple quantum dot is considered, consisting of three identical puddles with the same individual properties (energy levels and Coulomb blockade parameters) and inter-dot coupling (tunnel amplitudes and electrostatic interaction). The underlying Kondo physics is determined by the product of a discrete rotation symmetry group in real space and a continuous rotation symmetry in spin space. These symmetries are reflected in the resulting exchange hamiltonian which naturally involves spin and orbital degrees of freedom. The ensuing poor-man scaling equations are solved and the Kondo temperature is calculated.
description: 7 pages 1 figure, to appear in the proceeding of FQMT04 (Prague, July 2004)
Janius Kim & Boxshall 2020, gen. nov.
Creators: name: Kim, Il-Hoi
name: Boxshall, Geoff A.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Copepoda
Cyclopoida
Notodelphyidae
Janius

description: Janius gen. nov.
Diagnosis. Body maggot-like, cylindrical. Prosome consisting of clearly defined cephalosome and unsegmented metasome with very reduced, unsegmented, free urosome inserted into ventral surface of prosome. Caudal rami broadly elliptical, ornamented with setules; setal armature uncertain. Antennule lobate, tapering; surface densely covered with setules. Antenna consisting of coxa, basis, and unsegmented endopod bearing small terminal claw. Mandible with broad coxal gnathobase bearing pectinate medial margin; palp with elongate basis bearing 1 seta; exopod rudimentary, represented by small, unarmed swelling; endopod obscurely defined from basis, 2-segmented, armed with 1 and 4 setae on first and second segments, respectively. Maxillule unsegmented, armed with 4 mediodistal and 5 outer subdistal setae. Maxilla 3-segmented; armedwith 2 setaeonsyncoxa, 1 setaon basis, and 2 setaeon unsegmented endopod. Maxilliped unsegmented with 4 setae. Leg 1 biramous, positioned just posterior to oral area, directed anteriorly; exopod 1-segmented; endopod obscurely 2-segmented. Leg 2 rudimentary, represented by 2 setae. Legs 3-5 absent.
Type species. Janius brevis (Stock, 1967) comb. nov. (originally as Prophioseides brevis Stock) by original designation.
Etymology. The generic name honours the late Prof. Jan H. Stock who discovered the type species of the new genus. Gender masculine.
Remarks. The mandible of Prophioseides brevis Stock, 1967 is very unusual for the genus Prophioseides, because the exopod is reduced to a semicircular, unarmed swelling. Stock (1967) described this species on the basis of a single specimen and did not determine whether the reduction of the mandibular exopod was a normal condition or a deformity resulting from injury or damage. However, Stock (1967) mentioned that the left and right mandibles are of the same form, from which we infer that this is the normal structure of mandible for this species. Stock (1967) mentioned other differences between P. brevis from its congeners: the body is shorter and thicker, the abdomen is inserted ventrally, the caudal rami are broadly elliptical, and the species is associated with the solitary ascidian Phallusia nigra Savigny, 1816 in the Red Sea, in contrast to the association of all other congeneric species with the compound ascidians.
Prophioseides brevis cannot be accommodated in Prophioseides without an unacceptable broadening of the generic diagnosis, and therefore a new genus, Janius gen. nov., is established here to accommodate this species, as Janius brevis (Stock, 1967) comb. nov.
description: Published as part of Kim, Il-Hoi & Boxshall, Geoff A., 2020, Untold diversity: the astonishing species richness of the Notodelphyidae (Copepoda: Cyclopoida), a family of symbiotic copepods associated with ascidians (Tunicata), pp. 1-6 in Megataxa 4 (1) on pages 588-590, DOI: 10.11646/megataxa.4.1.1, http://zenodo.org/record/4591138
Untitled Item
Creators: name: Palma, Tobias G.
Publisher: name: figshare
Year: 2020
Subjects: subject: 80111 Virtual Reality and Related Simulation
subject: FOS: Computer and information sciences

description: Authors: Tobias G. Palma
Title: Hands-off Interactive Storytelling; Intuitive Agency in an Immersive Cinematic Film
On the notion of a macroscopic quantum system
Creators: name: Khrennikov, Andrei
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is proposed to define "quantumness" of a system (micro or macroscopic, physical, biological, social, political) by starting with understanding that quantum mechanics is a statistical theory. It says us only about probability distributions. The only possible criteria of quantum behaviour are statistical ones. Therefore I propose to consider any system which produces quantum statistics as quantum ("quantumlike"). A possible test is based on the interference of probabilities. I was mainly interested in using such an approach to "quantumness" to extend the domain of applications of quantum mathematical formalism and especially to apply it to cognitive sciences. There were done experiments on interference of probabilities for ensembles of students and a nontrivial interference was really found. One could say that the quantum statistical behaviour might be expected. But the problem was not so trivial. Yes, we might expect nonclassical statistics, but there was no reason to get the quantum one, i.e., cos-interference. But we got it!
Input-Output Analysis with Public Policy Objectives: A Case Study of the Georgia Cotton Industry
Creators: name: Flanders, Archie
name: Smith, Nathan B.
name: McKissick, John C.
name: Flanders, Archie
name: Smith, Nathan B.
name: McKissick, John C.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agribusiness
subject: Research and Development/Tech Change/Emerging Technologies
subject: economic impact
subject: FSRI
subject: IMPLAN
subject: industry model
subject: multivariate empirical distribution
subject: Simetar
subject: social welfare analysis
subject: stochastic simulation

description: Farm bill legislation directed at agricultural commodities contributes to economies of rural areas. This research quantifies the economic impacts of the Georgia cotton industry for the U.S. economy. A cotton industry model with cotton and peanut acreage is utilized with IMPLAN to estimate impacts. The Georgia cotton industry creates 4% more tax revenues for federal, state, and local governments than it receives in commodity support payments. Stochastic simulation analysis indicates that the Georgia cotton industry is not likely to remain viable without government payments.
Predicting the single-proton/neutron potentials in asymmetric nuclear matter
Creators: name: Sammarruca, F.
name: Barredo, W.
name: Krastev, P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss the one-body potentials for protons and neutrons obtained from Dirac-Brueckner-Hartree-Fock calculations of neutron-rich matter, in particular their dependence upon the degree of proton/neutron asymmetry. The closely related symmetry potential is compared with empirical information from the isovector component of the nuclear optical potential.
description: 9 pages, 6 figures. Minor revisions, added comments, references
On complexity and Jacobian of cone over a graph
Creators: name: Grunwald, L. A.
name: Mednykh, I. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C30, 39A10

description: For any given graph $G$ consider a graph $\widetilde{G}$ which is a cone over graph $G.$ In this paper, we study two important invariants of such a cone. Namely, complexity (the number of spanning trees) and the Jacobian of a graph. We prove that complexity of graph $\widetilde{G}$ coincides the number of rooted spanning forests in graph $G$ and the Jacobian of $\widetilde{G}$ is isomorphic to cokernel of the operator $I+L(G),$ where $L(G)$ is Laplacian of $G$ and $I$ is the identity matrix. As a consequence, one can calculate the complexity of $\widetilde{G}$ as $\det(I+L(G)).$
description: 14 pages
Major Forces and Factors Shaping Global Markets: The Emerging Agricultural World
Creators: name: Brookins, Carole L.
name: Brookins, Carole L.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Food Consumption/Nutrition/Food Safety
subject: biotechnology
subject: energy
subject: environment
subject: farm policy
subject: food safety
subject: information technology
subject: infrastructure gaps
subject: trade logistics

description: The world is producing greater opportunity for more people than ever before in the history of mankind. The global agri-food system is dynamic, not static. In order to understand the future trends and potentials for utilizing and improving our agri-food system, it is critical to focus on forces that will improve both productivity and policy to meet the demands of the ever-changing global market. This paper identifies five major trends that will impact the global economy and create structural change in commodity markets.
Enhancing Biometric Liveness Detection Using Trait Randomization Technique
Creators: name: OKEREAFOR, KENNETH
name: Onime, Clement
name: Osuagwu, Oliver
Publisher: name: figshare
Year: 2020
Subjects: subject: 80303 Computer System Security
subject: FOS: Computer and information sciences

description: The novel Multi-Modal Random Trait Biometric Liveness Detection System (MMRTBLDS) is introduced to mitigate the challenges of biometric spoofing using randomized combination of several techniques across three different modalities: face, finger and iris.
Complementary Projection Defects and Decompositions
Creators: name: Klos, Fabian
name: Roggenkamp, Daniel
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: As put forward in [arXiv:1907.12339] topological quantum field theories can be projected using so-called projection defects. The projected theory and its correlation functions can be completely realized within the unprojected one. An interesting example is the case of topological quantum field theories associated to IR fixed points of renormalization group flows, which by this method can be realized inside the theories associated to the UV. In this note we show that projection defects in triangulated defect categories (such as defects in 2d topologically twisted N=(2,2) theories) always come with complementary projection defects, and that the unprojected theory decomposes into the theories associated to the two projection defects. We demonstrate this in the context of Landau-Ginzburg orbifold theories.
description: v2: 16 pages, minor changes
Canadian Orange Juice Imports and Production Level Import Demand
Creators: name: Liu, Yan
name: Kilmer, Richard L.
name: Lee, Jonq-Ying
name: Liu, Yan
name: Kilmer, Richard L.
name: Lee, Jonq-Ying
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: International Relations/Trade
subject: AIDS model
subject: CBS model
subject: import demand
subject: international trade
subject: NBR model

description: Import demand equations are estimated in order to identify the own-, cross-price, and volume elasticities that can be used to determine the best marketing strategy to increase U.S. orange juice gallons in the Canadian import market. This study uses the firm’s version of production differential, AIDS, CBS, and NBR models. An expansion of total Canadian orange juice import gallons using advertising favors the U.S. much more than it does the other three origins investigated— Brazil, Mexico, and ROW. A 1% increase in imported gallons of orange juice due to advertising will increase U.S. imports by 1.20% and Brazil’s gallons by 0.60%.
Demo1 - Tong Xue, Jie Li, Guo Chen, Pablo Cesar et al. pdf
Creators: name: Xue, Tong
Publisher: name: figshare
Year: 2020
Subjects: subject: 80111 Virtual Reality and Related Simulation
subject: FOS: Computer and information sciences

description: Title: A Social VR Clinic for Knee Arthritis Patients with Haptics
Unraveling the complex magnetosphere of the B star HD 133880 via wideband observation of coherent radio emission
Creators: name: Das, Barnali
name: Chandra, Poonam
name: Wade, Gregg A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: HD 133880 is one of the six hot magnetic stars known to produce coherent pulsed radio emission by the process of electron cyclotron maser emission (ECME). In this paper, we present observations of ECME from this star over a wide frequency range, covering nearly 300 - 4000 MHz with the Giant Metrewave Radio Telescope (GMRT) and the Karl G. Jansky Very Large Array (VLA). This study, which is the first of its kind, has led to the discovery of several interesting characteristics of the phenomenon and also of the host star. We find that the observable properties of ECME pulses, e.g. the time lag between right and left circularly polarized pulses, the amplitudes of the pulses, and their upper cut-off frequencies appear to be dependent on the stellar orientation with respect to the line of sight. We suggest that all these phenomena, which are beyond the ideal picture, can be attributed to a highly azimuthally asymmetric matter distribution in the magnetosphere about the magnetic field axis, which is a consequence of both the high obliquity (the angle between rotation axis and the magnetic field axis) of the star and the deviation of the stellar magnetic field from a dipolar topology.
description: Accepted for publication in MNRAS