cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fast Evaluation of Interlace Polynomials on Graphs of Bounded Treewidth
Creators: name: Bläser, Markus
name: Hoffmann, Christian
Publisher: name: arXiv
Year: 2009
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences
subject: F.2.1; F.2.2; G.2.1; G.2.2; I.1.2

description: We consider the multivariate interlace polynomial introduced by Courcelle (2008), which generalizes several interlace polynomials defined by Arratia, Bollobas, and Sorkin (2004) and by Aigner and van der Holst (2004). We present an algorithm to evaluate the multivariate interlace polynomial of a graph with n vertices given a tree decomposition of the graph of width k. The best previously known result (Courcelle 2008) employs a general logical framework and leads to an algorithm with running time f(k)*n, where f(k) is doubly exponential in k. Analyzing the GF(2)-rank of adjacency matrices in the context of tree decompositions, we give a faster and more direct algorithm. Our algorithm uses 2^{3k^2+O(k)}*n arithmetic operations and can be efficiently implemented in parallel.
description: v4: Minor error in Lemma 5.5 fixed, Section 6.6 added, minor improvements. 44 pages, 14 figures
Effects of Weather Shocks on Millet Markets in Sub Saharan Africa: Evidence from Niger
Creators: name: Kakpo, Ange T.
name: Mills, Bradford F.
name: Brunelin, Stephanie
name: Kakpo, Ange T.
name: Mills, Bradford F.
name: Brunelin, Stephanie
Publisher: name: Unknown
Year: 2020
Subjects: International Development
Community/Rural/Urban Development
Demand and Price Analysis

description: Presentation17957
Wilson twisted mass fermions in the epsilon regime
Creators: name: Jansen, K.
name: Nube, A.
name: Shindler, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: In this proceeding contribution we report on the ongoing effort to understand and simulate Wilson twisted mass fermions in the so called epsilon regime.
description: 7 pages, 3 figures, 1 table talk presented at the XXVI International Symposium on Lattice Field Theory, July 14-19, 2008, Williamsburg, Virginia, US
Estimation of the preferences for the intertemporal services from groundwater
Creators: name: West, Grant H.
name: Snell, Heather
name: Kovacs, Kent
name: Nayga, Rodolfo M.
name: West, Grant H.
name: Snell, Heather
name: Kovacs, Kent
name: Nayga, Rodolfo M.
Publisher: name: Unknown
Year: 2020
Subjects: Resource/Energy Economics and Policy

description: Presentation17967
The groundnuts Fairtrade arrangement and its spillover effects on agricultural commercialization and household welfare outcomes: Empirical evidence from central Malawi
Creators: name: Kaiyatsa, Stevier
name: Matita, Mirriam
name: Chirwa, Ephraim
name: Mazalale, Jacob
name: Kaiyatsa, Stevier
name: Matita, Mirriam
name: Chirwa, Ephraim
name: Mazalale, Jacob
Publisher: name: Unknown
Year: 2020
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Agricultural and Food Policy
subject: International Development

description: Presentation17969
Expert_opinions.docx
Creators: name: Libório, Matheus
name: Martinuci, Oseias da Silva
Publisher: name: figshare
Year: 2021
Subjects: subject: Geography
subject: 160404 Urban and Regional Studies (excl. Planning)
subject: FOS: Social and economic geography

description: The document reports the opinion of 23 experts from 9 countries on the methods of constructing composite indicators Principal Component Analysis and Benefit-of-the-Doubt. Besides, it reports the opinions of five experts on which of these methods offers the best representation of social exclusion for a Brazilian city.
Building a Marine Cadastre for South Korea
Creators: name: Lee, H
Publisher: name: University Of Tasmania
Year: 2023
Subjects: Geospatial information systems and geospatial data modelling

description: With the enactment of Ocean Korea 21 (2000), South Korea has made a commitment towards the sustainable development of its ocean and coastal reserves, based on principles of integrated and effective management. The complexities of marine area management are highlighted in the Koren situation, with a complex legal and instititional framework, changing economic priorities, escalating conflicts related to resource use, and increasing pressure to address ecosystem problems. South Korea is in a difficult political and geographical situation, with jurisdictional conflict in its marine regions. Consequently the need to establish an integrated marine management system is fundamentally important to South Korea. Despite the absence of physically marked boundaries, and despite the complexity of reliable marine positioning, maritime boundaries and their associated rights, restrictions, and responsibilities are absolutely real and must be well managed and adhered to. (Colloer et al .2003.) In this thesis, an examination of marine environmental, policy and information management issues, particularly in the Australian and South Korean contexts, has contributed to recommendations for a marine cadastral system for South Korea.
Responses of the Brans-Dicke field due to gravitational collapses
Creators: name: Hwang, Dong-il
name: Yeom, Dong-han
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study responses of the Brans-Dicke field due to gravitational collapses of scalar field pulses using numerical simulations. Double-null formalism is employed to implement the numerical simulations. If we supply a scalar field pulse, it will asymptotically form a black hole via dynamical interactions of the Brans-Dicke field. Hence, we can observe the responses of the Brans-Dicke field by two different regions. First, we observe the late time behaviors after the gravitational collapse, which include formations of a singularity and an apparent horizon. Second, we observe the fully dynamical behaviors during the gravitational collapse and view the energy-momentum tensor components. For the late time behaviors, if the Brans-Dicke coupling is greater (or smaller) than -1.5, the Brans-Dicke field decreases (or increases) during the gravitational collapse. Since the Brans-Dicke field should be relaxed to the asymptotic value with the elapse of time, the final apparent horizon becomes time-like (or space-like). For the dynamical behaviors, we observed the energy-momentum tensors around $ω$ ~ -1.5. If the Brans-Dicke coupling is greater than -1.5, the $T_{uu}$ component can be negative at the outside of the black hole. This can allow an instantaneous inflating region during the gravitational collapse. If the Brans-Dicke coupling is less than -1.5, the oscillation of the $T_{vv}$ component allows the apparent horizon to shrink. This allows a combination that violates weak cosmic censorship. Finally, we discuss the implications of the violation of the null energy condition and weak cosmic censorship.
description: 28 pages, 14 figures
On locally constructible spheres and balls
Creators: name: Benedetti, Bruno
name: Ziegler, Günter M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Combinatorics (math.CO)
subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Topology (math.AT)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 52B22, 57M25, 05A16

description: Durhuus and Jonsson (1995) introduced the class of "locally constructible" (LC) 3-spheres and showed that there are only exponentially-many combinatorial types of simplicial LC 3-spheres. Such upper bounds are crucial for the convergence of models for 3D quantum gravity. We characterize the LC property for d-spheres ("the sphere minus a facet collapses to a (d-2)-complex") and for d-balls. In particular, we link it to the classical notions of collapsibility, shellability and constructibility, and obtain hierarchies of such properties for simplicial balls and spheres. The main corollaries from this study are: 1.) Not all simplicial 3-spheres are locally constructible. (This solves a problem by Durhuus and Jonsson.) 2.) There are only exponentially many shellable simplicial 3-spheres with given number of facets. (This answers a question by Kalai.) 3.) All simplicial constructible 3-balls are collapsible. (This answers a question by Hachimori.) 4.) Not every collapsible 3-ball collapses onto its boundary minus a facet. (This property appears in papers by Chillingworth and Lickorish.)
description: Revised version, with corrections (31 pages, 6 figures)
Differential Impact of Gender of Household Head on Food Security: Empirical Evidence from Vietnam
Creators: name: Bairagi, Subir K.
name: Mishra, Ashok K.
name: Tran, Dat Q.
name: Bairagi, Subir K.
name: Mishra, Ashok K.
name: Tran, Dat Q.
Publisher: name: Unknown
Year: 2020
Subjects: Community/Rural/Urban Development
International Development
Agricultural and Food Policy

description: Presentation17974
The impacts of observational learning and word-of-mouth learning on farmers’ adoption decision: does interpersonal trust play a role?
Creators: name: Zeng, Yangmei
name: Qiu, Feng
name: Zhang, Junbiao
name: Zeng, Yangmei
name: Qiu, Feng
name: Zhang, Junbiao
Publisher: name: Unknown
Year: 2020
Subjects: Institutional and Behavioral Economics
Labor and Human Capital
Resource/Energy Economics and Policy

description: Presentation17977
Quantifying the economic costs of High Plains Aquifer depletion
Creators: name: Perez-Quesada, Gabriela
name: Hendricks, Nathan P.
name: Steward, David R.
name: Perez-Quesada, Gabriela
name: Hendricks, Nathan P.
name: Steward, David R.
Publisher: name: Unknown
Year: 2020
Subjects: Resource/Energy Economics and Policy

description: Presentation17978
Non-adiabatic primordial fluctuations
Creators: name: Noller, J.
name: Magueijo, J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider general mixtures of isocurvature and adiabatic cosmological perturbations. With a minimal assumption set consisting of the linearized Einstein equations and a primordial perfect fluid we derive the second-order action and its curvature variables. We also allow for varying equation of state and speed of sound profiles. The derivation is therefore carried out at the same level of generality that has been achieved for adiabatic modes before. As a result we find a new conserved super-horizon quantity and relate it to the adiabatically conserved curvature perturbation. Finally we demonstrate how the formalism can be applied by considering a Chaplygin gas-like primordial matter model, finding two scale-invariant solutions for structure formation.
description: 11 pages
Community based monitoring and public service delivery - Impact, and the role of information, deliberation, and jurisdictional tier
Creators: name: Kabunga, Nassul
name: Miehe, Caroline
name: Mogues, Tewodaj
name: Van Campenhout, Bjorn
name: Kabunga, Nassul
name: Miehe, Caroline
name: Mogues, Tewodaj
name: Van Campenhout, Bjorn
Publisher: name: Unknown
Year: 2020
Subjects: Institutional and Behavioral Economics
Community/Rural/Urban Development
Teaching/Communication/Extension/Profession

description: Presentation17981
Assessing Efficiency of U.S. Cow-Calf Operations
Creators: name: Shear, Hannah E.
name: Pendell, Dustin L.
name: Nehring, Richard F.
name: Shear, Hannah E.
name: Pendell, Dustin L.
name: Nehring, Richard F.
Publisher: name: Unknown
Year: 2020
Subjects: Agribusiness
Agricultural Finance
Production Economics

description: Presentation17985
Compton scattering as the explanation of the peculiar X-ray properties of Cyg X-3
Creators: name: Zdziarski, A. A.
name: Misra, R.
name: Gierlinski, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We consider implications of a possible presence of a Thomson-thick, low-temperature, plasma cloud surrounding the compact object in the binary system Cyg X-3. The presence of such a cloud was earlier inferred from the energy-independent orbital modulation of the X-ray flux and the lack of high frequencies in its power spectra. Here, we study the effect of Compton scattering by the cloud on the X-ray energy and power spectra, concentrating on the hard spectral state. The process reduces the energy of the high-energy break/cut-off in the energy spectra, which allows us to determine the Thomson optical depth. This, together with the observed cut-off in the power spectrum, determines the size of the plasma to be 2x10^9 cm. At this size, the cloud will be in thermal equilibrium in the photon field of the X-ray source, which yields the cloud temperature of 3 keV, which refines the determination of the Thomson optical depth to 7. At these parameters, thermal bremsstrahlung emission of the cloud becomes important as well. The physical origin of the cloud is likely to be collision of the very strong stellar wind of the companion Wolf-Rayet star with a small accretion disc formed by the wind accretion. Our model thus explains the peculiar X-ray energy and power spectra of Cyg X-3.
description: MNRAS, the version as printed, the title and abstract changed
Consumers’ Valuation for Cocoa and Forest Initiative Certified Chocolate
Creators: name: Peterson-Wilhelm, Bailey
name: Nalley, Lanier
name: Nayga, Rodolfo M.
name: Snell, Heather
name: Peterson-Wilhelm, Bailey
name: Nalley, Lanier
name: Nayga, Rodolfo M.
name: Snell, Heather
Publisher: name: Unknown
Year: 2020
Subjects: subject: International Development
subject: Research Methods/Statistical Methods
subject: Marketing
subject: FOS: Economics and business

description: Presentation17986
Relativity Theories, Einstein Thought Experiments Revisited
Creators: name: Viel, Didier
Publisher: name: Zenodo
Year: 2022
Subjects: Relativity, Einstein Thought Experiments

description: Since Galileo scientists were conscious of the necessity that all the laws in physics hold good whatever the motion of an inertial reference frame. When it has been shown it was not the case for the equation of propagation of electromagnetic waves with the use of the Newtonian rule, there was a challenge to find the way to solve this problem.  Everyone knows how Einstein found his way to his relativity theory. Far fewer people have the knowledge of existence of Young-Sea Huang relativity theory. In this paper we will compare these two relativity theories with Einstein Thought Experiments. Since the reader may not be aware of the conceptual theory of Young-Sea Huang relativity, it is recommended to first read the documents in reference.
Impact of Agricultural programs on Youth Engagement in Agribusiness: The Case of the Fadama Graduate Unemployed Youths Support Program in Nigeria
Creators: name: Adeyanju, Dolapo F.
name: Mburu, John I.
name: Mignouna, Djana B.
name: Adeyanju, Dolapo F.
name: Mburu, John I.
name: Mignouna, Djana B.
Publisher: name: Unknown
Year: 2020
Subjects: Agribusiness
Community/Rural/Urban Development
Teaching/Communication/Extension/Profession

description: Presentation17992
ҚАШҚАДАРЁДА СУДЛАРНИНГ ТАШКИЛ ЭТИЛИШИ ВА НАТИЖАЛАРИ (СОВЕТ ДАВРИ МИСОЛИДА)
Creators: name: Худойқулов, Ихтиёр
Publisher: name: Zenodo
Year: 2023

description: Мазкур мақолада Қашқадарёда совет даври судларининг ташкил этилишининг тарихий натижалари, хусусан судлар қошида юридик маслаҳат хоналар фаолият кўрсатиб, меҳнат ва оила ҳуқуқлари, фуқаролик ва жиноят ҳуқуқи бўйича алоҳида ҳуқуқий маслаҳат хизмати кўрсатилганлиги ҳақида маълумотлар берилган.
Effects of Grocery Bag Regulations on Grocery Sales and Shopping Behaviors: Evidence of Natural Experiments in the United States
Creators: name: Huang, Yu-Kai
name: Woodward, Richard T.
name: Huang, Yu-Kai
name: Woodward, Richard T.
Publisher: name: Unknown
Year: 2020
Subjects: Resource/Energy Economics and Policy
Institutional and Behavioral Economics
Agricultural and Food Policy

description: Presentation17994
Member Participation and Satisfaction in Agricultural Cooperatives
Creators: name: Kashyap, Dipanjan
name: Bhuyan, Sanjib
name: Kashyap, Dipanjan
name: Bhuyan, Sanjib
Publisher: name: Unknown
Year: 2020
Subjects: subject: Agribusiness
subject: Community/Rural/Urban Development
subject: Marketing
subject: FOS: Economics and business

description: Presentation18000
Large-scale inhomogeneities may improve the cosmic concordance of supernovae
Creators: name: Amendola, Luca
name: Kainulainen, Kimmo
name: Marra, Valerio
name: Quartin, Miguel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We reanalyze the supernovae data from the Union Compilation including the weak lensing effects caused by inhomogeneities. We compute the lensing probability distribution function for each background solution described by the parameters Omega_M, Omega_L and w in the presence of inhomogeneities, approximately modeled with a single-mass population of halos. We then perform a likelihood analysis in the space of FLRW-parameters and compare our results with the standard approach. We find that the inclusion of lensing can move the best-fit model significantly towards the cosmic concordance of the flat LCDM model, improving the agreement with the constraints coming from the cosmic microwave background and baryon acoustic oscillations.
description: 4 pages, 3 figures; replaced to match the improved version accepted for publication in PRL. A turboGL package to be used with your favorite SNe catalogue is available at http://www.turbogl.org/AKMQ1.html
VERITAS Observations of the BL Lac Object 1ES 1218+304
Creators: name: Fortin, Pascal
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The VERITAS collaboration reports the detection of very-high-energy (VHE) gamma-ray emission from the high-frequency-peaked BL Lac object 1ES 1218+304 located at a redshift of z=0.182. A gamma-ray signal was detected with high statistical significance for the observations taken during several months in the 2006-2007 observing season. The photon spectrum between ~160 GeV and ~1.8 TeV is well described by a power law with an index of Gamma = 3.08 +/- 0.34(stat) +/- 0.2(sys). The integral flux above 200 GeV corresponds to ~6% of that of the Crab Nebula. The light curve does not show any evidence for VHE flux variability. Using lower limits on the density of the extragalactic background light (EBL) in the near-IR to mid-IR we are able to limit the range of intrinsic energy spectra for 1ES 1218+304. We show that the intrinsic photon spectrum is harder than a power law with an index of Gamma = 2.32 +/- 0.37. When including constraints from the spectra of 1ES 1101-232 and 1ES 0229+200, the spectrum of 1ES 1218+304 is likely to be harder than Gamma = 1.86 +/- 0.37.
description: Submitted to Proceedings of "4th Heidelberg International Symposium on High Energy Gamma-Ray Astronomy 2008"
Does Internet use help increase residents’ participation in programs to improve the dwelling environment? Evidence from China
Creators: name: Wang, Xueting
name: Qiu, Feng
name: Zhang, Junbiao
name: Tong, Qingmeng
name: Wang, Xueting
name: Qiu, Feng
name: Zhang, Junbiao
name: Tong, Qingmeng
Publisher: name: Unknown
Year: 2020
Subjects: Community/Rural/Urban Development
Resource/Energy Economics and Policy

description: Presentation18001
Discovery of a Wide Binary Brown Dwarf Born in Isolation
Creators: name: Luhman, K. L.
name: Mamajek, E. E.
name: Allen, P. R.
name: Muench, A. A.
name: Finkbeiner, D. P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: During a survey for stars with disks in the Taurus star-forming region using the Spitzer Space Telescope, we have discovered a pair of young brown dwarfs, FU Tau A and B, in the Barnard 215 dark cloud. They have a projected angular separation of 5.7", corresponding to 800 AU at the distance of Taurus. To assess the nature of these two objects, we have obtained spectra of them and have constructed their spectral energy distributions. Both sources are young (~1 Myr) according to their Halpha emission, gravity-sensitive spectral features, and mid-IR excess emission. The proper motion of FU Tau A provides additional evidence of its membership in Taurus. We measure spectral types of M7.25 and M9.25 for FU Tau A and B, respectively, which correspond to masses of ~0.05 and ~0.015 M\cdot according to the evolutionary models of Chabrier and Baraffe. FU Tau A is significantly overluminous relative to an isochrone passing through FU Tau B and relative to other members of Taurus near its spectral type, which may indicate that it is an unresolved binary. FU Tau A and B are likely to be components of a binary system based on the low probability (~3x10^-4) that Taurus would produce two unrelated brown dwarfs with a projected separation of a - 6". Barnard 215 contains only one other young star and is in a remote area of Taurus, making FU Tau A and B the first spectroscopically-confirmed brown dwarfs discovered forming in isolation rather than in a stellar cluster or aggregate. Because they were born in isolation and comprise a weakly bound binary, dynamical interactions with stars could not have played a role in their formation, and thus are not essential for the birth of brown dwarfs. ERRATUM: The K-band magnitude for FU Tau B in Table 1 is incorrect and should be 13.33. The bolometric luminosity of FU Tau B in Table 3 and Figure 5 is incorrect because of that mistake and a separate arithmetic error. The correct value of the luminosity is 0.0039 Lsun. FU Tau A and B exhibited different isochronal ages in the original Hertzsprung-Russell diagram in Figure 5, which was unexpected for members of a binary system. This discrepancy is reduced in the corrected version of Figure 5 since both objects are now above the isochrone for 1 Myr. Given the large uncertainties in model isochrones at such young ages, the positions of FU Tau A and B in Figure 5 could be roughly consistent with coevality.
description: revised version with Erratum (in press)
Computation- and Space-Efficient Implementation of SSA
Creators: name: Korobeynikov, Anton
Publisher: name: arXiv
Year: 2009
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: The computational complexity of different steps of the basic SSA is discussed. It is shown that the use of the general-purpose "blackbox" routines (e.g. found in packages like LAPACK) leads to huge waste of time resources since the special Hankel structure of the trajectory matrix is not taken into account. We outline several state-of-the-art algorithms (for example, Lanczos-based truncated SVD) which can be modified to exploit the structure of the trajectory matrix. The key components here are hankel matrix-vector multiplication and hankelization operator. We show that both can be computed efficiently by the means of Fast Fourier Transform. The use of these methods yields the reduction of the worst-case computational complexity from O(N^3) to O(k N log(N)), where N is series length and k is the number of eigentriples desired.
description: 27 pages, 8 figures
Light Dragging Phenomenon and Expanding Wormholes
Creators: name: Culetu, Hristu
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The null geodesic congruence for the Lorentzian version of Hawking's wormhole is studied, in spherical Rindler coordinates. One finds that the wormhole throat expands exponentially and the "flare - out" condition is satisfied. A time reversal is equivalent with an inversion applied to the radial coordinate. The stress energy is mostly located near wormhole's throat and the anisotropic fluid is comoving with the spherical distribution of accelerating observers. Far from the throat (the light cone in Cartesian coordinates) the negative energy density acquires an expression similar with the Casimir energy density between two perfectly reflecting plates. We conjecture that the light propagation follows the throat of a preexisting expanding wormhole (a "light dragging" phenomenon).
description: 9 pages, no figures, title changed, version published in J. Korean Phys. Soc. 57 (3), 419 - 423 (2010)
Confluent primary fields in the conformal field theory
Creators: name: Nagoya, Hajime
name: Sun, Juanjuan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 32G34, 17B80, 34M55, 37J35, 81R12

description: For any complex simple Lie algebra, we generalize primary fileds in the Wess-Zumino-Novikov-Witten conformal field theory with respect to the case of irregular singularities and we construct integral representations of hypergeometric functions of confluent type, as expectation values of products of generalized primary fields. In the case of sl(2), these integral representations coincide with solutions to confluent KZ equations. Computing the operator product expansion of the energy-momentum tensor and the generalized primary field, new differential operators appear in the result. In the case of sl(2), these differential operators are the same as those of the confluent KZ equations.
description: 15 pages. Corrected typos. Proposition 3.1 rewritten. Other minor changes, title changed
Start Smoking Earlier, Smoke More: Does Education Matter?
Creators: name: Ren, Yanjun
name: Castro Campos, Bente
name: Loy, Jens-Peter
name: Wang, Xiaobing
name: Ren, Yanjun
name: Castro Campos, Bente
name: Loy, Jens-Peter
name: Wang, Xiaobing
Publisher: name: Unknown
Year: 2020
Subjects: Institutional and Behavioral Economics
Research Methods/Statistical Methods
Agricultural and Food Policy

description: Presentation18004
The Effects of Digital Inclusive Finance on Household Income and Income Inequality in China?
Creators: name: Liu, Dan
name: Jin, Yanhong
name: Pray, Carl
name: Liu, Shuang
name: Liu, Dan
name: Jin, Yanhong
name: Pray, Carl
name: Liu, Shuang
Publisher: name: Unknown
Year: 2020
Subjects: Agricultural Finance
Agribusiness
Community/Rural/Urban Development

description: Presentation18011
VERITAS Observations of the Coma Cluster of Galaxies
Creators: name: Perkins, J. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Clusters of galaxies are one of the few prominent classes of objects predicted to emit gamma rays not yet detected by satellites like EGRET or ground-based Imaging Atmospheric Cherenkov Telescopes (IACTs). The detection of Very High Energy (VHE, E > 100 GeV) gamma rays from galaxy clusters would provide insight into the morphology of non-thermal particles and fields in clusters. VERITAS, an array of four 12-meter diameter IACTs, is ideally situated to observe the massive Coma cluster, one of the best cluster candidates in the Northern Hemisphere. This contribution details the results of VERITAS observations of the Coma cluster of galaxies during the 2007-2008 observing season.
description: Submitted to Proceedings of "4th Heidelberg International Symposium on High Energy Gamma-Ray Astronomy 2008"
Good practice guidance for Little Penguin tourism
Creators: name: Mitchell, W
Publisher: name: University Of Tasmania
Year: 2023
Subjects: Impacts of tourism

description: Various State Government documentation, including the Tasmanian Wildlife Tourism Strategy 2005 highlight a series of action plans to facilitate an expansion of wildlife tourism in Tasmania. Little Penguin viewing is as one of the key wildlife tourism opportunities outlined. Subsequently this research focused on the sustainability of the Tasmanian colonies of Little Penguin (Eudyptula minor) which are used for current commercial wildlife tourism experiences. Little Penguins are unique to Southern Australian states and therefore Australia has a duty of care to ensure that colonies are sustainable. Sustainable development is the framework used for this thesis; • sustaining the potential of natural and physical resources to meet the reasonably foreseeable needs of future generations; • safeguarding the life-supporting capacity of air, water, soil and ecosystems; and • avoiding, remedying or mitigating any adverse effects of activities on the environment. Therefore the research aimed to contribute to the development of good practice guidelines for minimizing human disturbance to Little Penguins at commercial penguin viewing operations in Tasmania. This research identified the impacts on colonies of Little Penguins, through activities including tourism. The study highlights twelve points which would contribute to the sustainability of Little Penguin (Eudyptula minor) colonies utilised for commercial tourism viewing opportunities in Tasmania. • the importance of a vision, goals and leadership; • the requirement for appropriately empowered governance and management structures; • the need for licensing arrangements that achieve objectives; and are attached to a rigorous yearly license renewal process; • the need for a operator code of best practice with yearly objectives; • the requirement for impact assessments to be conducted; • the need for management plans for each site; • the requirement for base line data; • the need for appropriate infrastructure; • the need for operator investment in species and habitat protection; • the need for community involvement; • the importance of ongoing research; and • the need to maintain monitoring and reporting with a view to adaptive management implementations as appropriate.
Love as an ordering principle in Cavalcanti, Pound and Robert Duncan
Creators: name: Westbrook, Ralph Robert
Publisher: name: University of British Columbia
Year: 2011

description: The purpose of this thesis is to offer some explination of the manner in which Ezra Pound has created a metaphysical centre for The Cantos through absorption and integration of the Renaissance metaphysic of courtly and transcendent love and the pragmatic ethical philosophy of Confucius. It resolves no problems, either textual or critical, but rather suggests that the thirty-sixth Canto is central to the philosophy underlying the poem as a whole. From the central fourth chaper, the thesis attempts to give some idea of the nature of Pound's influence upon one other poet and how this influence has resulted in a new evaluation of the original Cavalcanti material. The short intoductory chapter outlines the nature of the problem of love as an ordering principle which provides a reconciliation of the disparate and seemingly opposing forces which shape human experience. This unity, it is stated, represents an attempt on the part of western man to integrate his dualistic response to the world of Process, an essentially eastern concept. Chapter two outlines the nature of Cavalcanti's poem and the philosophy of love which it contains. Apparently, this poem has yet to be interpreted with any degree of finality and I have necessarily had to work through the general concensus of critical opinion. The third chapter points to Pound's conception of the philosophy of Guido Cavalcanti's canzon and how Pound has interpreted the "guerdon" of the amour courtois tradition as the Confucian doctrine of li. Chapter four explores the connexion between Pound's conception and interpretation of Donna Me Prega and how, from the concept of individual compassion, Pound envisions a viable order for the society of western man, while continually maintaining the concept of the universe as Process. The fifth chapter deals with Robert Duncan's stated variation on Pound's view of Donna Me Prega and the philosophy contained therein, and offers some comments on the different possibilities of order, or lack of same, as expressed by Duncan. The conclusion discusses the metaphysical concept of love as a principle of unity in relation to some modern statements of epistemology and aesthetics, and concludes that Pound has expressed the sense of order and unity in a more universal and objective manner than has Duncan. The addendum of chapter seven suggests some possibilities for further research into these areas and concludes that Ezra Pound's consciousness of the Processal universe is essentially oriental, ie., an aesthetic response, while the concept remains largely an intellectual postulate in the western world. On the whole, the primary concern is for the explanation of the relationship among such elements as imagination, transcendent love, human social order, and the concept of the universe as an all-embracing Process of interacting elements.
Minimum Cost Diets as a Food Security Indicator in Central America
Creators: name: Sandoval M, Luis A.
name: Carpio, Carlos E.
name: Alfaro, Edytha A.
name: Alvarado, Ana B.
name: Moreno, Ana V.
name: Sandoval M, Luis A.
name: Carpio, Carlos E.
name: Alfaro, Edytha A.
name: Alvarado, Ana B.
name: Moreno, Ana V.
Publisher: name: Unknown
Year: 2020
Subjects: Food Consumption/Nutrition/Food Safety
Agricultural and Food Policy
International Development

description: Presentation18015
Buchstaber Invariant of Simple Polytopes
Creators: name: Erokhovets, Nickolai
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Topology (math.AT)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 55Nxx, 52Bxx

description: In this paper we study a new combinatorial invariant of simple polytopes, which comes from toric topology. With each simple n-polytope P with m facets we can associate a moment-angle complex Z_P with a canonical action of the torus T^m. Then s(P) is the maximal dimension of a toric subgroup that acts freely on Z_P. The problem stated by Victor M. Buchstaber is to find a simple combinatorial description of an s-number. We describe the main properties of s(P) and study the properties of simple n-polytopes with n+3 facets. In particular, we find the value of an s-number for such polytopes, a simple formula for their h-polynomials and the bigraded cohomology rings of the corresponding moment-angle complexes
description: 25 pages; typos corrected; references added
Curious or not? A study of agriculture students’ perceptions on curiosity dimensions
Creators: name: Tewari, Rachna
name: Lange, Kelly
name: Mehlhorn, Joey E.
name: Tewari, Rachna
name: Lange, Kelly
name: Mehlhorn, Joey E.
Publisher: name: Unknown
Year: 2020
Subjects: Teaching/Communication/Extension/Profession
Agribusiness
Institutional and Behavioral Economics

description: Presentation18019
Farm-level Innovation and Productivity: Evidence from Groundnut Farming in Malawi
Creators: name: Owusu, Eric S.
name: Bravo-Ureta, Boris E.
name: Owusu, Eric S.
name: Bravo-Ureta, Boris E.
Publisher: name: Unknown
Year: 2020
Subjects: Productivity Analysis
Production Economics
Community/Rural/Urban Development

description: Presentation18020
Supersymmetric Inflation with the Ordinary Higgs?
Creators: name: Tamvakis, K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider a model of D-term inflation in which the inflaton coincides with the standard Higgs doublet. Non-renormalizable terms are controlled by a discrete R-symmetry of the superpotential. We consider radiative corrections to the scalar potential and find that Higgs inflation in the slow-roll approximation is viable and consistent with CMB data, although with a rather large value of the non-renormalizable coupling involved.
description: 7 pages, 1 figure, published version, comments and reference added, typos and factor of 2 corrected.
Constraining a matter-dominated cosmological model with bulk viscosity proportional to the Hubble parameter
Creators: name: Avelino, Arturo
name: Nucamendi, Ulises
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present and constrain a cosmological model where the only component is a pressureless fluid with bulk viscosity as an explanation for the present accelerated expansion of the universe. We study the particular model of a bulk viscosity coefficient proportional to the Hubble parameter. The model is constrained using the SNe Ia Gold 2006 sample, the Cosmic Microwave Background (CMB) shift parameter R, the Baryon Acoustic Oscillation (BAO) peak A and the Second Law of Thermodynamics (SLT). It was found that this model is in agreement with the SLT using only the SNe Ia test. However when the model is constrained using the three cosmological tests together (SNe+CMB+BAO) we found: 1.- The model violates the SLT, 2.- It predicts a value of H_0 \approx 53 km sec^{-1} Mpc^{-1} for the Hubble constant, and 3.- We obtain a bad fit to data with a χ^2_{min} \approx 532. These results indicate that this model is viable just if the bulk viscosity is triggered in recent times.
description: 5 pages, 2 eps figures. Work presented in the III International Meeting on Gravitation and Cosmology, Morelia, Mexico, May 26-30, 2008. Submitted to AIP Conference Proceedings of this conference. Related work: arXiv:0801.1686
diCenzo_et_al_2021
Creators: name: diCenzo, George
name: Cangioli, Lisa
name: Nicoud, Quentin
name: Cheng, Janis
name: Blow, Matthew
name: Shapiro, Nicole
name: Woyke, Tanja
name: Biondi, Emanuele
name: Alunni, Benoît
name: Mengoni, Alessio
name: Mergaert, Peter
Publisher: name: figshare
Year: 2021
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Supplementary Material forDNA methylation in Ensifer species during free-living growth and during nitrogen-fixing symbiosis with Medicago spp.
 George C. diCenzo, Lisa Cangioli, Quentin Nicoud, Janis H.T. Cheng, Matthew J. Blow, Nicole Shapiro, Tanja Woyke, Emanuele G Biondi, Benoît Alunni, Alessio Mengoni, and Peter Mergaert
 George diCenzoEmail: george.dicenzo@queensu.ca
File S1 includes:Figures S1 to S20Tables S1 to S8Legends for Datasets S1 to S2Supplementary References
A dynamical time operator in Dirac's relativistic quantum mechanics
Creators: name: Bauer, Mariano
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A self-adjoint dynamical time operator is introduced in Dirac's relativistic formulation of quantum mechanics and shown to satisfy a commutation relation with the Hamiltonian analogous to that of the position and momentum operators. The ensuing time-energy uncertainty relation involves the uncertainty in the instant of time when the wave packet passes a particular spatial position and the energy uncertainty associated with the wave packet at the same time, as envisaged originally by Bohr. The instantaneous rate of change of the position expectation value with respect to the simultaneous expectation value of the dynamical time operator is shown to be the phase velocity, in agreement with de Broglie's hypothesis of a particle associated wave whose phase velocity is larger than c. Thus, these two elements of the original basis and interpretation of quantum mechanics are integrated into its formal mathematical structure. Pauli's objection is shown to be resolved or circumvented. Possible relevance to current developments in interference in time, in Zitterbewegung like effects in spintronics, grapheme and superconducting systems and in cosmology is noted.
A scalable readout system for a superconducting adiabatic quantum optimization system
Creators: name: Berkley, A. J.
name: Johnson, M. W.
name: Bunyk, P.
name: Harris, R.
name: Johansson, J.
name: Lanting, T.
name: Ladizinsky, E.
name: Tolkacheva, E.
name: Amin, M. H. S.
name: Rose, G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have designed, fabricated and tested an XY-addressable readout system that is specifically tailored for the reading of superconducting flux qubits in an integrated circuit that could enable adiabatic quantum optimization. In such a system, the flux qubits only need to be read at the end of an adiabatic evolution when quantum mechanical tunneling has been suppressed, thus simplifying many aspects of the readout process. The readout architecture for an $N$-qubit adiabatic quantum optimization system comprises $N$ hysteretic dc SQUIDs and $N$ rf SQUID latches controlled by $2\sqrt{N} + 2$ bias lines. The latching elements are coupled to the qubits and the dc SQUIDs are then coupled to the latching elements. This readout scheme provides two key advantages: First, the latching elements provide exceptional flux sensitivity that significantly exceeds what may be achieved by directly coupling the flux qubits to the dc SQUIDs using a practical mutual inductance. Second, the states of the latching elements are robust against the influence of ac currents generated by the switching of the hysteretic dc SQUIDs, thus allowing one to interrogate the latching elements repeatedly so as to mitigate the effects of stochastic switching of the dc SQUIDs. We demonstrate that it is possible to achieve single qubit read error rates of $<10^{-6}$ with this readout scheme. We have characterized the system-level performance of a 128-qubit readout system and have measured a readout error probability of $8\times10^{-5}$ in the presence of optimal latching element bias conditions.
description: Updated for clarity, final version
diCenzo_et_al_2021_File_S1.pdf
Creators: name: diCenzo, George
name: Cangioli, Lisa
name: Nicoud, Quentin
name: Cheng, Janis
name: Blow, Matthew
name: Shapiro, Nicole
name: Woyke, Tanja
name: Biondi, Emanuele
name: Alunni, Benoît
name: Mengoni, Alessio
name: Mergaert, Peter
Publisher: name: figshare
Year: 2021
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Supplementary Material forDNA methylation in Ensifer species during free-living growth and during nitrogen-fixing symbiosis with Medicago spp.
 George C. diCenzo, Lisa Cangioli, Quentin Nicoud, Janis H.T. Cheng, Matthew J. Blow, Nicole Shapiro, Tanja Woyke, Emanuele G Biondi, Benoît Alunni, Alessio Mengoni, and Peter Mergaert
 George diCenzoEmail: george.dicenzo@queensu.ca
File S1 includes:Figures S1 to S20Tables S1 to S8Legends for Datasets S1 to S2Supplementary References
Cardy-Verlinde formula in FRW Universe with inhomogeneous generalized fluid and dynamical entropy bounds near the future singularity
Creators: name: Brevik, Iver
name: Nojiri, Shin'ichi
name: Odintsov, Sergei D.
name: Sáez-Gómez, Diego
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We derive a Cardy-Verlinde-like formula which relates the entropy of the closed FRW universe to its energy, and Casimir energy, for a multicomponent coupled fluid. The generalized fluid obeys an inhomogeneous equation of state. A viscous dark fluid is included, and we include also modified gravity using its fluid representation. It is demonstrated how such an expression reduces to the standard Cardy-Verlinde formula corresponding to the 2d CFT entropy only in some special cases. The dynamical entropy bound for a closed FRW universe with dark components is obtained. The universality of the dynamical entropy bound near a future singularity (of all four types), as well as near the Big Bang singularity, is investigated. It is demonstrated that except from some special cases of Type II and Type IV singularities the dynamical entropy bound is violated near the singularity even if quantum effects are taken into account. The dynamical entropy bound seems to be universal for the case of a regular universe, including the asymptotic de Sitter one.
description: 14 pages. Published version
On the existence of Hamiltonian stationary Lagrangian submanifolds in symplectic manifolds
Creators: name: Joyce, Dominic
name: Lee, Yng-Ing
name: Schoen, Richard
Publisher: name: arXiv
Year: 2009
Subjects: subject: Differential Geometry (math.DG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: Let (M,w) be a compact symplectic 2n-manifold, and g a Riemannian metric on M compatible with w. For instance, g could be Kahler, with Kahler form w. Consider compact Lagrangian submanifolds L of M. We call L Hamiltonian stationary, or H-minimal, if it is a critical point of the volume functional under Hamiltonian deformations. It is called Hamiltonian stable if in addition the second variation of volume under Hamiltonian deformations is nonnegative. Our main result is that if L is a compact, Hamiltonian stationary Lagrangian in C^n satisfying the extra condition of being Hamiltonian rigid, then for any M,w,g as above there exist compact Hamiltonian stationary Lagrangians L' in M contained in a small ball about some p in M and locally modelled on tL for small t>0, identifying M near p with C^n near 0. If L is Hamiltonian stable, we can take L' to be Hamiltonian stable. Applying this to known examples L in C^n shows that there exist families of Hamiltonian stable, Hamiltonian stationary Lagrangians diffeomorphic to T^n, and to (S^1 x S^{n-1})/{1,-1}, and with other topologies, in every compact symplectic 2n-manifold (M,w) with compatible metric g.
description: 25 pages. (v2) minor changes, final version to appear in American Journal of Mathematics
Change in attitudes toward mental hospital ward aides and beliefs about mental illness over time of hospitalized mental patients
Creators: name: McDonald, James Timothy
Publisher: name: University of British Columbia
Year: 2011

description: In recent years there have been several studies concerning themselves with such topics as mental patients' attitudes toward hospital personnel and mental patients' beliefs about mental illness. However, these studies are not without fault. They have been strictly empirical in approach, with no theoretical framework from which to predict and/or explain the results they have obtained. These studies also have failed to control for potentially important variables such as whether a patient, has had previous admissions to a mental hospital. The present study attempted to surmount these shortcomings. Drawing upon Heider's (1946) balance theory, it was predicted that if the patients' attitudes toward the staff changed in a positive direction (as a study by Reznikoff, et al. [I960] suggests is the case), those beliefs about mental illness held by the patients which were dissimilar to the staff's beliefs would converge toward those beliefs held by the staff. This study also controlled for the no prior admissions ---prior admissions variable, a variable Wolfensberger's (1956) study suggests may be important. The Semantic Differential was used to measure the patients' attitudes toward the staff while the Information Questionnaire (Nunnally, 1957, 1961) was used to measure their beliefs about mental illness. These two questionnaires were administered twice: the first time being no longer than four days after admission to the hospital; the second time being approximately three weeks after the first administration. The results of this study indicated that patients' attitudes toward the staff (aides in this particular study) do increase in a favorable direction, but this had no influence on the patients' beliefs about mental illness as had been predicted. The patients' beliefs about mental illness did not change toward the staffs' (aides) beliefs but rather remained the same over the two testings. Possible reasons for the failure of this study to support the prediction were discussed. Also, the validity of the Information Questionnaire was seriously questioned.