cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
2019_IREC_037_EhsanAkrami.pdf
Creators: name: Akrami, Ehsan
name: Specklin, Mathieu
name: Breen, Ben
name: Connolly, Robert
name: Albadawi, Abdulaleem
name: Delauré, Yan
Publisher: name: figshare
Year: 2021
Subjects: subject: 91501 Computational Fluid Dynamics
subject: FOS: Other engineering and technologies
subject: 20303 Fluid Physics
subject: FOS: Physical sciences
subject: Mechanical Engineering
subject: FOS: Mechanical engineering
subject: 91307 Numerical Modelling and Mechanical Characterisation
subject: 91508 Turbulent Flows

description: Sewage water is typically made up of complex liquid mixtures carrying a wide range of suspended solids and
materials. Handling of such mixtures can present a significant challenge for hydraulic equipment and pumps in
particular. A computational model has been developed to simulate the transport and deformation of immersed thin
flexible structures in response to transient fluid loading and interactions with moving and static surfaces in confined
domains. The numerical solution is based on an Eulerian-Lagrangian formulation. The Navier-Stokes equations are
solved using a segregated approach relying on an iterative form of the PISO pressure-velocity coupling implemented
in the OpenFOAM®. The dynamic deformation of the solid are solved using a Finite Difference resolution of the
variational derivative of the deformation energy for the solid modelled as a thin flexible two-dimensional membranes
with the coupling based on a diffused Immersed Boundary Method (IBM). Turbulence is modelled with a hybrid RANS
LES approach which has been shown to better resolve the turbulent eddy structures within the volute than a pure
RANS method. The methods and solvers have been detailed and validated in recent publications, but this article is
the first detailed characterisation of rag dynamics under varying conditions. The case studies presented will focus on
a single blade impeller (SBI) and a two blade impeller (TBI) radial pump. Impeller eye and volute recirculation
blockage have been captured giving useful insight into the dynamics of the rag and its interaction with the impeller
and volute. The study also highlighted the limitation of the approximate solid-solid interaction model in more sensitive
leading edge blockage. Sensitivity analysis on rag length, rag ratio, rag stiffness and flows rate revealed that generally
the probability of the blockage increases with the rag length and aspect ratio and decreases with the rag stiffness and
flow rate. The complexity of the volute and impeller geometry has a significant impact on the possibility of clogging
Ground state of medium-heavy doubly-closed shell nuclei in correlated basis function theory
Creators: name: Bisconti, C.
name: de Saavedra, F. Arias
name: Co', G.
name: Fabrocini, A.
name: .
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The correlated basis function theory is applied to the study of medium-heavy doubly closed shell nuclei with different wave functions for protons and neutrons and in the jj coupling scheme. State dependent correlations including tensor correlations are used. Realistic two-body interactions of Argonne and Urbana type, together with three-body interactions have been used to calculate ground state energies and density distributions of the 12C, 16O, 40Ca, 48Ca and 208Pb nuclei.
description: Latex 10 pages, 3 Tables, 10 Figures
ON THE EQUIVALENCE OF IMPORT TARIFF AND QUOTA: THE CASE OF RICE IMPORT IN TAIWAN
Creators: name: Chen, Chi-Chung
name: Chang, Ching-Cheng
name: Yang, Min-Hsien
name: Chen, Chi-Chung
name: Chang, Ching-Cheng
name: Yang, Min-Hsien
Publisher: name: Unknown
Year: 2003
Subjects: International Relations/Trade

description: This paper extends the existing theory on the equivalence of import tariff and quota. If the equivalence is defined on the domestic price level (weak equivalence), then either the zero conjectural variation for domestic country or a perfectly competitive market will be sufficient to support this equivalence. If the equivalence is defined both on the same domestic price level as well as tariff rate (strong equivalence), then the conditions are that either domestic country acts as a Cournot competitor and foreign country is a price taker, or both domestic and foreign country are price takers. An empirical spatial-equilibrium trade model is constructed to simulate the impacts of import tariff and quota. Using Taiwan¡¦s rice import as an example, the empirical results show that if Taiwan switches from the quota system to tariff system, the domestic rice price as well as total social welfare can be increased given the same import volume.
Emergence of Long Period Antiferromagnetic Orders from Haldane Phase in S=1 Heisenberg Chains with D-Modulation
Creators: name: Hida, Kazuo
name: Chen, Wei
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The effect of spatial modulation of the single-site anisotropy D on the ground state of the S=1 Heisenberg chains is investigated. In the case of period 2 modulation, it is found that the phase diagram contains the Haldane phase, large-D phase, Neel phase of udud-type and u0d0-type. It is shown that the hidden antiferromagnetic order in the Haldane phase compatible with the spatial modulation of D-term get frozen resulting in the emergence of various types of Neel orders. The investigation of the model with longer period D-modulation also confirms this picture.
description: 4 pages, 3 figures
Probing the stability of a model jellyroll [beta]-sandwich protein
Creators: name: Everts, Sarah
Publisher: name: University of British Columbia
Year: 2009

description: A major challenge in the field of protein folding involves dissecting the thermodynamic and kinetic pathways by which a polypeptide acquires its unique, minimal free-energy structure. While much research has focussed on α-helical containing proteins, the folding pathways of their all-β-sheet counterparts remains less well defined. To this end, thermodynamic investigations of the second N-terminal cellulose binding domain of Cellulomonas fimi endoglucanase C (CBDN2) were carried out. This 153 residue domain is composed of 11 β-strands that assemble into two anti-parallel β-sheets with the topology of a jellyroll β-sandwich. Using circular dichroism (CD) spectroscopy, CBDN2 is shown to undergo fully reversible unfolding induced by both heating and the addition of denaturants. Unfolding of CBDN2 occurs in a largely pH independent manner. This thesis describes the results of "native state hydrogen exchange (HX)" experiments in non-denaturing concentrations of GuanidineDCl (GuDCl). Amide hydrogen to deuteron exchange provides a means of obtaining residue specific stability, since these rates reflect the structural fluctuations and hydrogen bond disruptions required for solvent exposure. Many of these rates increase when measured in the presence of low GuDCl concentration, since the free-energy barrier against structural fluctuations is decreased, although the protein remains globally folded. The core residues of CBDN2 exhibit a high degree of protection, exchanging only as a result of global unfolding fluctuations. The stability measured for these unfolding fluctuations corresponds to the global stability measured by CD denaturation. Amide groups in loop regions and near the termini exhibited much less protection, exchanging via low energy fluctuations. There appeared to be no difference in exchange patterns or residue specific stability between residues in sheet-A and sheet-B, suggesting a two-state folding mechanism and the absence of any partially unfolded intermediates. Residues most protected from HX were highly conserved among the 8 most sequence homologous proteins.
Evaporative cooling of icy interstellar grains II. Key parameters
Creators: name: Kalvāns, Juris
name: Kalnin, Juris Roberts
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Context. Evaporative (sublimation) cooling of icy interstellar grains occurs when the grains have been suddenly heated by a cosmic-ray (CR) particle or other process. It results in thermal desorption of icy species, affecting the chemical composition of interstellar clouds. Aims. We investigate details on sublimation cooling, obtaining necessary knowledge before this process is considered in astrochemical models. Methods. We employed a numerical code that describes the sublimation of molecules from an icy grain, layer by layer, also considering a limited diffusion of bulk-ice molecules toward the surface before they sublimate. We studied a grain, suddenly heated to peak temperature T, which cools via sublimation and radiation. Results. A number of questions were answered. The choice of grain heat capacity C has a limited effect on the number of sublimated molecules N, if the grain temperature T > 40K. For grains with different sizes, CR-induced desorption is most efficient for rather small grains with a core radius of a ~ 0.02 micron. CR-induced sublimation of CO2 ice can occur only from small grains if their peak temperature is T > 80K and there is a lack of other volatiles. The presence of H2 molecules on grain surface hastens their cooling and thus significantly reduces N for other sublimated molecules for T < 30K. Finally, if there is no diffusion and subsequent sublimation of bulk-ice molecules (i.e., sublimation occurs only from the surface layer), sublimation yields do not exceed 1-2 monolayers and, if T > 50K, N does not increase with increasing T. Conclusions. Important details regarding the sublimation cooling of icy interstellar grains were clarified, which will enable a proper consideration of this process in astrochemical modeling.
description: Accepted for publication in A&A
TEMPORAL INSENSITIVITY OF PVWTP AND IMPLIED DISCOUNT RATES IN CVM
Creators: name: Kim, Sooil
name: Haab, Timothy C.
name: Kim, Sooil
name: Haab, Timothy C.
Publisher: name: Unknown
Year: 2003
Subjects: Research Methods/ Statistical Methods

description: The sensitivity of WTP is tested in terms of the present value and the implied discount rates are derived by varying the length of benefit and the temporal payment schedules. Results show that holding the length of the project constant, the present value of willingness to pay does not vary significantly across payment schemes (one time payment, versus life of the project, versus perpetuity). Heteroskedasticity of error term over payment schemes fails to be accepted. Holding the payment scheme constant, the present value of WTP is insensitive to the life of the project (5 or 10 years). The implied discount rates are high as previous literatures.
Communication 12: The Role of Agricultural Banks and Sustainable Agricultural Development: Evidence from a Farming Community in Libya
Creators: name: Hamed, Abdurrahman
name: Lemon, Mark
Publisher: name: De Montfort University
Year: 2021
Subjects: subject: 129999 Built Environment and Design not elsewhere classified
subject: FOS: Civil engineering
subject: 120404 Engineering Systems Design
subject: FOS: Other engineering and technologies
subject: 120507 Urban Analysis and Development
subject: FOS: Social and economic geography

description: Farmers and rural communities in developing countries encounter a broad range of challenges, including poverty, hunger, poor health and well-being, and climate change. In relation to sustainable agricultural development, farmers need to apply appropriate farming techniques and agricultural technologies that require a high level of investments. In Libya, the Agricultural Bank was founded to promote agricultural development that is both sustainable and improves the living standard of rural communities and farmers’ welfare. The present study is focused on the role of the Agricultural Bank in the Jafara region to the South-west of Tripoli City in addressing the challenges of poverty, hunger, poor health and well-being, and climate change or not. Based on a mixed method approach, including 83 surveys and 26 interviews with farmers in the region, the study reveals that the Agricultural Bank has inadequate financial resources to improve the infrastructure, production and level of prosperity among farmers in the agricultural sector of the region. The paper concludes with some practical recommendations regarding how government and the Agricultural Bank can more effectively support sustainable agricultural development in the Jafara region and other rural area of Libya.
PRODUCT TRADING - AN ALTERNATIVE TO TRANSFERABLE WHEAT QUOTAS
Creators: name: Powell, Roy A.
name: Powell, Roy A.
Publisher: name: Unknown
Year: 1972
Subjects: subject: Marketing
subject: FOS: Economics and business

description: This note examines the implications of permitting producers to trade wheat amongst themselves. The outcome, in efficiency terms, is identical to that achieved with transferable quotas. For some producers, there may be advantages in product trading that are not available in transferable quotas.
Enhance synchronizability by structural perturbations
Creators: name: Zhao, Ming
name: Zhou, Tao
name: Wang, Bing-Hong
name: Wang, Wen-Xu
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this paper, we investigate the collective synchronization of system of coupled oscillators on Barabási-Albert scale-free network. We propose an approach of structural perturbations aiming at those nodes with maximal betweenness. This method can markedly enhance the network synchronizability, and is easy to be realized. The simulation results show that the eigenratio will sharply decrease to its half when only 0.6% of those hub nodes are under 3-division processes when network size N=2000. In addition, the present study also provides a theoretical evidence that the maximal betweenness plays a main role in network synchronization.
description: 4 pages, 3 eps figures
Systematic errors in weak lensing: application to SDSS galaxy-galaxy weak lensing
Creators: name: Mandelbaum, Rachel
name: Hirata, Christopher M.
name: Seljak, Uros
name: Guzik, Jacek
name: Padmanabhan, Nikhil
name: Blake, Cullen
name: Blanton, Michael R.
name: Lupton, Robert
name: Brinkmann, Jonathan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Weak lensing is emerging as a powerful observational tool to constrain cosmological models, but is at present limited by an incomplete understanding of many sources of systematic error. Many of these errors are multiplicative and depend on the population of background galaxies. We show how the commonly cited geometric test, which is rather insensitive to cosmology, can be used as a ratio test of systematics in the lensing signal at the 1 per cent level. We apply this test to the galaxy-galaxy lensing analysis of the Sloan Digital Sky Survey (SDSS), which at present is the sample with the highest weak lensing signal to noise and has the additional advantage of spectroscopic redshifts for lenses. This allows one to perform meaningful geometric tests of systematics for different subsamples of galaxies at different mean redshifts, such as brighter galaxies, fainter galaxies and high-redshift luminous red galaxies, both with and without photometric redshift estimates. We use overlapping objects between SDSS and the DEEP2 and 2SLAQ spectroscopic surveys to establish accurate calibration of photometric redshifts and to determine the redshift distributions for SDSS. We use these redshift results to compute the projected surface density contrast DeltaSigma around 259 609 spectroscopic galaxies in the SDSS; by measuring DeltaSigma with different source samples we establish consistency of the results at the 10 per cent level (1-sigma). We also use the ratio test to constrain shear calibration biases and other systematics in the SDSS survey data to determine the overall galaxy-galaxy weak lensing signal calibration uncertainty. We find no evidence of any inconsistency among many subsamples of the data.
description: 39 pages, 19 figures
Boolean algebras of conditionals, probability and logic
Creators: name: Flaminio, Tommaso
name: Godo, Lluis
name: Hosni, Hykel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic (math.LO)
subject: Logic in Computer Science (cs.LO)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 03B48 (Primary), 03G05, 68T27, 60A05

description: This paper presents an investigation on the structure of conditional events and on the probability measures which arise naturally in this context. In particular we introduce a construction which defines a (finite) {\em Boolean algebra of conditionals} from any (finite) Boolean algebra of events. By doing so we distinguish the properties of conditional events which depend on probability and those which are intrinsic to the logico-algebraic structure of conditionals. Our main result provides a way to regard standard two-place conditional probabilities as one-place probability functions on conditional events. We also consider a logical counterpart of our Boolean algebras of conditionals with links to preferential consequence relations for non-monotonic reasoning. The overall framework of this paper provides a novel perspective on the rich interplay between logic and probability in the representation of conditional knowledge.
Hadronic production and decays of Charginos and Neutralinos in Split Supersymmetry
Creators: name: Cheung, Kingman
name: Song, Jeonghyeon
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the scenario recently proposed by Arkani-Hamed and Dimopoulos, the supersymmetric scalar particles are all very heavy, at least of the order of $10^9$ GeV but the gauginos, higgsino, and one of the CP-even neutral Higgs bosons remain light under a TeV. In addition to gluino production, the first SUSY signature would be pair production of neutralinos and/or charginos. Here we study, with explicit CP violation, the production of neutralinos and charginos at hadronic colliders as well as the possible decay modes. We notice that the branching ratio of the neutralino radiative decay can be sizable unlike the case with light sfermions. In particular, the decay of N3->N1+gamma has a branching ratio of the order O(1) percent. In colliders, it would give rise to signatures of an isolated single photon plus missing energy.
description: minor revisions and references added
A SUPPLY FUNCTION FOR DAIRY PRODUCTS
Creators: name: Mules, T.J.
name: Mules, T.J.
Publisher: name: Unknown
Year: 1972
Subjects: Demand and Price Analysis

description: Results of an investigation into factors affecting the aggregate supply of dairy products in Australia are presented. Empirical estimates of the parameters of the supply function, using ordinary least squares, indicate that some concept of average prices for dairy products is a more important determinant of supply than ratios of prices of dairy products relative to prices of production substitutes such as beef cattle or sheep and lambs. The empirical results also indicate that the quota-type effects of the various metropolitan fluid milk schemes are important in determining supply. Effects of new technology on supply could not be quantified due to intercorrelation of explanatory variables.
New York Times Upshot/Siena College: September 2018 West Virginia 03 Poll
Creators: name: New York Times
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Likelihood of voting in 2018 election (2); opinion of various public figures (2); vote for Democrat/Republican for Congress (1); West Virginia Congressional District 03 (1); Democratic Candidate Richard Ojeda (1); Republican Candidate Carol Miller (1); respondent would like Democrats/Republicans to control House of Representatives (1); President Donald Trump job performance (1); support/oppose various positions (3); agree/disagree with various statements (4); ever struggled/known someone who has struggled with opioid addiction (1); political partisanship (1).
Navigating in the Cayley graphs of SL_N(Z) and SL_N(F_p)
Creators: name: Riley, T. R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Group Theory (math.GR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 20F05

description: We give a non-deterministic algorithm that expresses elements of SL_N(Z), for N > 2, as words in a finite set of generators, with the length of these words at most a constant times the word metric. We show that the non-deterministic time-complexity of the subtractive version of Euclid's algorithm for finding the greatest common divisor of N > 2 integers a_1,..., a_N is at most a constant times N log n where n := max {|a_1|,..., |a_N|}. This leads to an elementary proof that for N > 2 the word metric in SL_N(Z) is biLipschitz equivalent to the logarithm of the matrix norm -- an instance of a theorem of Mozes, Lubotzky and Raghunathan. And we show constructively that there exists K>0 such that for all N > 2 and primes p, the diameter of the Cayley graph of SL_N(F_p) with respect to the generating set {e_{ij} \mid i \neq j} is at most K N^2 \log p.
description: 18 pages, no figures
Random phases in Bose-Einstein condensates with higher order nonlinearities
Creators: name: Marklund, M.
name: Shukla, P. K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present a statistical description of Bose-Einstein condensates with general higher order nonlinearities. In particular, we investigate the case of cubic-quintic nonlinearities, of particular interest for dilute condensates. The implication of decoherence for the stability properties of the condensate is discussed.
description: 3 pages, no figs., to appear in Eur. Phys. J. B
New York Times Upshot/Siena College: September 2018 Virginia 07 Poll
Creators: name: New York Times
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Likelihood of voting in 2018 election (2); opinion of various public figures (2); Virginia Congressional District 07 (1); Democratic Candidate Abigail Spanberger (1); Republican Candidate Dave Brat (1); vote for Democrat/Republican for Congress (1); respondent would like Democrats/Republicans to control House of Representatives (1); President Donald Trump job performance (1); support/oppose positions on Trump controversies (2); approve/disapprove of how respondent's representative has handled Russia investigation (1); agree/disagree with various statements (3); political partisanship (1).
A SIMULATION MODEL OF AN ARID ZONE SHEEP PROPERTY
Creators: name: Chudleigh, Peter D.
name: Filan, S.J.
name: Chudleigh, Peter D.
name: Filan, S.J.
Publisher: name: Unknown
Year: 1972
Subjects: Land Economics/Use

description: A simulation model of a pastoral property in the Western Division of New South Wales is described. Problems of applying the model to analysis of decision situations faced by graziers are reviewed, and the results of some early applications of the model are summarized.
New York Times Upshot/Siena College: September 2018 Texas 23 Poll
Creators: name: New York Times
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Likelihood of voting in 2018 election (2); opinion of various public figures (2); Texas Congressional District 23 (1); Democratic Candidate Gina Ortiz Jones (1); Republican Candidate Will Hurd (1); vote for Democrat/Republican for Congress (1); respondent would like Democrats/Republicans to control House of Representatives (1); President Donald Trump job performance (1); support/oppose various political positions (5); agree/disagree that Trump's policies have made own family's economic situation better (1); vote for US Representative Beto O'Rourke vs. Senator Ted Cruz for Senate (1); political partisanship (1).
Donor Electron Wave Functions for Phosphorus in Silicon: Beyond Effective Mass Theory
Creators: name: Wellard, C. J.
name: Hollenberg, L. C. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We calculate the electronic wave-function for a phosphorus donor in silicon by numerical diagonalisation of the donor Hamiltonian in the basis of the pure crystal Bloch functions. The Hamiltonian is calculated at discrete points localised around the conduction band minima in the reciprocal lattice space. Such a technique goes beyond the approximations inherent in the effective-mass theory, and can be modified to include the effects of altered donor impurity potentials, externally applied electro-static potentials, as well as the effects of lattice strain. Modification of the donor impurity potential allows the experimentally known low-lying energy spectrum to be reproduced with good agreement, as well as the calculation of the donor wavefunction, which can then be used to calculate parameters important to quantum computing applications.
description: 10 pages, 5 figures
Graph Signal Processing: Vertex Multiplication
Creators: name: Koç, Aykut
name: Bayiz, Yigit E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: On the Euclidean domains of classical signal processing, linking of signal samples to the underlying coordinate structure is straightforward. While graph adjacency matrices totally define the quantitative associations among the underlying graph vertices, a major problem in graph signal processing is the lack of explicit association of vertices with an underlying quantitative coordinate structure. To make this link, we propose an operation, called the vertex multiplication, which is defined for graphs and can operate on graph signals. Vertex multiplication, which generalizes the coordinate multiplication operation in time series signals, can be interpreted as an operator which assigns a coordinate structure to a graph. By using the graph domain extension of differentiation and graph Fourier transform (GFT), vertex multiplication is defined such that it shows Fourier duality, which states that differentiation and coordinate multiplication operations are duals of each other under Fourier transformation (FT). The proposed definition is shown to reduce to coordinate multiplication for graphs corresponding to time series. Numerical examples are also presented.
description: 9 pages, 2 figures
Bericht des Generalsekretärs Dr. Visser't Hooft an den Zentralausschuss (1962)
Creators: name: Visser 'T Hooft, Willem Adolph
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 11 Nr. 3 (1962): Ökumenische Rundschau, Band 11, Heft 3
Quantum stabilization of Z-strings in the electroweak model
Creators: name: Schroeder, Oliver
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the quantum energy of the Z-string in 2+1 dimensions using the phase shift formalism. Our main interest is the question of stability of a Z-string carrying a finite fermion number.
description: 8 pages LaTex, talk presented at the 7th Workshop On Quantum Field Theory Under The Influence Of External Conditions (QFEXT 05),5-9 Sep 2005, Barcelona, Catalonia, Spain
Critical Balance and the Physics of MHD Turbulence
Creators: name: Oughton, Sean
name: Matthaeus, William H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A discussion of the advantages and limitations of the concept of critical balance, as employed in turbulence phenomenologies, is presented. The incompressible magnetohydrodynamic (MHD) case is a particular focus. The discussion emphasizes the status of the original Goldreich & Sridhar (1995) critical balance conjecture relative to related theoretical issues and models in an MHD description of plasma turbulence. Issues examined include variance and spectral anisotropy, influence of a mean magnetic field, local and nonlocal effects, and the potential for effects of external driving. Related models such as Reduced MHD provide a valuable context in the considerations. Some new results concerning spectral features and timescales are presented in the course of the discussion. Also mentioned briefly are some adaptations and variations of critical balance.
description: 26 pages, 4 figures. Accepted for ApJ
Kinetic theory of cluster impingement in the framework of statistical mechanics of rigid disks
Creators: name: Tomellini, M.
name: Fanfoni, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The paper centres on the evaluation of the function n(theta)=N(theta)/N0, that is the normalized number of islands as a function of coverage 0
description: 10 pages, 3 figures
EVALUATING RETURNS TO RESEARCH IN PASTURE IMPROVEMENT
Creators: name: Duncan, Ronald C.
name: Duncan, Ronald C.
Publisher: name: Unknown
Year: 1972
Subjects: Land Economics/Use

description: The objectives of the study reported here were (a) to attempt to identify pasture research findings which have been important for the development of improved pastures in a number of agricultural regions, and (b) to estimate the internal rates of return on the investment in pasture research in these regions. The technique used was the estimation of input-demand functions for the stock of improved pastures. It is shown that the important research results were mainly the result of research in plant nutrition. Adoption lags were estimated, and these were short by comparison with those usually derived by other methods. Internal rates of return calculated for successful research findings were very high, hut there were important differences between regions.
Communication 11: Impact of Implementing Renewable Energy in Power Distribution and Agriculture on Achievement of Sustainable Development Goals (SDGs) in Africa: Case Study of Northern Nigeria
Creators: name: Muhammad. H Yadudu
name: Rowley, Paul
name: Blanchard, Richard
Publisher: name: De Montfort University
Year: 2021
Subjects: subject: 129999 Built Environment and Design not elsewhere classified
subject: FOS: Civil engineering
subject: 120404 Engineering Systems Design
subject: FOS: Other engineering and technologies
subject: 120507 Urban Analysis and Development
subject: FOS: Social and economic geography

description: Agriculture in Africa has a massive social and economic footprint. More than 80 percent of the population of sub-Saharan Africa is smallholder farmers, and about 23 percent of sub-Saharan Africa's GDP comes from agriculture. Yet, Africa's full agricultural potential remains untapped due to some limitations and inefficiencies.The research was conducted in Kano, a city in Northern Nigeria. The study considered the effects of implementing renewable energy with respect to power distribution companies in direct relation to SDG goals number: 1, 2, 7, 8, 11, and 13. As part of the research, a survey of 214 households was undertaken. Data was collected via questionnaires, focus group discussions and stakeholder interviews. With the data collected having a Cronbach’s Alpha score of 0.72, a bivariate analysis was conducted using Spearman’s rho correlation analysis to understand the impact of energy via renewable means on the average income of households, level of education, average savings, and carbon emissions. All this was examined from the power distribution point of view. Results showed very strong correlation between energy via renewable means with average income, level of education, average savings and carbon emissions. The rho values were 0.617, 0.514, 0.534 and 0.612 respectively. With such rho values, the study indicated that RE will support agriculture and SDGs.
Defining relations for classical Lie algebras of polynomial vector fields
Creators: name: Leites, Dimitry
name: Poletaeva, Elena
Publisher: name: arXiv
Year: 2005
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B01, 17B32

description: We explicitly describe the defining relations for simple Lie algebra of vector fields with polynomial coefficients and its subalgebras of divergence free, hamiltonian and contact vector fields, and for the Poisson algebra (realized on polynomials). We consider generators of these Lie algebras corresponding to the systems of simple roots associated with the standard grading of these algebras. (These systems of simple roots are distinguished in the sense of Penkov and Serganova.
description: 11 pages, Latex
Plastic yielding and deformation bursts in the presence of disorder from coherent precipitates
Creators: name: Salmenjoki, Henri
name: Lehtinen, Arttu
name: Laurson, Lasse
name: Alava, Mikko J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Alloying metals with other elements is often done to improve the material strength or hardness. A key microscopic mechanism is precipitation hardening, where precipitates impede dislocation motion, but the role of such obstacles in determining the nature of collective dislocation dynamics remains to be understood. Here, three-dimensional discrete dislocation dynamics simulations of FCC single crystals are performed with fully coherent spherical precipitates from zero precipitate density upto $ρ_p = 10^{21}\,\text{m}^{-3}$ and at various dislocation-precipitate interaction strengths. When the dislocation-precipitate interactions do not play a major role the yielding is qualitatively as for pure crystals, i.e., dominated by "dislocation jamming", resulting in glassy dislocation dynamics exhibiting critical features at any stress value. We demonstrate that increasing the precipitate density and/or the dislocation-precipitate interaction strength creates a true yield or dislocation assembly depinning transition, with a critical yield stress. This is clearly visible in the statistics of dislocation avalanches observed when quasistatically ramping up the external stress, and is also manifested in the response of the system to constant applied stresses. The scaling of the yielding with precipitates is discussed in terms of the Bacon-Kocks-Scattergood relation.
description: 7 pages, 5 figures. Submitted to Physical Review Materials
INTER-GENERATIONAL TRANSFERS IN THE RURAL SECTOR: A REVIEW OF SOME PROBLEMS
Creators: name: Longworth, John W.
name: Longworth, John W.
Publisher: name: Unknown
Year: 1972
Subjects: Consumer/Household Economics

description: Three kinds of inter-generational transfer are discussed. Despite the obvious advantages of partnerships and other forms of income splitting from the income tax viewpoint, about half of the primary producers in Australia continue to operate their businesses as sole traders. Some of the problems which arise with partnerships, trusts and companies in this regard are considered. The transfer of the ownership of the assets in addition to the ownership of the income stream they generate, is then considered in detail. The taxation of this transfer by means of gift and death duties raises many questions in relation to economic equity and efficiency. The third type of inter-generational transfer discussed in this paper is the transfer of the managerial role. Several suggestions are made which could help not only to reduce the family trauma which usually surrounds this issue, but which also could help reduce the tendency for farmers to hold the reins for too long.
Review of Alice Borgna, Tutte storie di maschi bianchi morti…
Creators: name: Malaspina, Ermanno
Publisher: name: Ciceroniana on line
Year: 2023

description: Alice Borgna, Tutte storie di maschi bianchi morti…, «Fact Checking: la Storia alla prova dei fatti», Laterza, Bari-Roma 2022, 166 pp., ISBN 978-88-581-4839-6
description: Ciceroniana on line, V. 7 N. 2 (2023): “Cicerone e l’ambiente” Atti del convegno a cura di Adalberto MAGNAVACCA & Tommaso RICCHIERI
Multi-Dimensional Simulations of the Accretion-Induced Collapse of White Dwarfs to Neutron Stars
Creators: name: Dessart, Luc
name: Burrows, Adam
name: Ott, Christian
name: Livne, Eli
name: Yoon, Sung-Chul
name: Langer, Norbert
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present 2.5D radiation-hydrodynamics simulations of the accretion-induced collapse (AIC) of white dwarfs, starting from 2D rotational equilibrium configurations of a 1.46-Msun and a 1.92-Msun model. Electron capture leads to the collapse to nuclear densities of these cores within a few tens of milliseconds. The shock generated at bounce moves slowly, but steadily, outwards. Within 50-100ms, the stalled shock breaks out of the white dwarf along the poles. The blast is followed by a neutrino-driven wind that develops within the white dwarf, in a cone of ~40deg opening angle about the poles, with a mass loss rate of 5-8 x 10^{-3} Msun/yr. The ejecta have an entropy on the order of 20-50 k_B/baryon, and an electron fraction distribution that is bimodal. By the end of the simulations, at >600ms after bounce, the explosion energy has reached 3-4 x 10^{49}erg and the total ejecta mass has reached a few times 0.001Msun. We estimate the asymptotic explosion energies to be lower than 10^{50}erg, significantly lower than those inferred for standard core collapse. The AIC of white dwarfs thus represents one instance where a neutrino mechanism leads undoubtedly to a successful, albeit weak, explosion. We document in detail the numerous effects of the fast rotation of the progenitors: The neutron stars are aspherical; the ``nu_mu'' and anti-nu_e neutrino luminosities are reduced compared to the nu_e neutrino luminosity; the deleptonized region has a butterfly shape; the neutrino flux and electron fraction depend strongly upon latitude (a la von Zeipel); and a quasi-Keplerian 0.1-0.5-Msun accretion disk is formed.
description: 25 pages, 19 figures, accpeted to ApJ, high resolution of the paper and movies available at http://hermes.as.arizona.edu/~luc/aic/aic.html
Smart Contracts: From Formal Specification to Blockchain Code
Creators: name: Sharifi, Seyed Sepehr
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2020
Subjects: Formal Specification Languages
Smart Contracts
Contract Monitoring
Legal Contracts
Subcontracting
Cyber Physical Systems

description: The combination of the Internet of Things (IoT), a type of Cyber Physical Systems (CPS), with Distributed Ledger Technology (DLT) platforms, also known as blockchains, provides an unprecedented opportunity for automating smart contracts that monitor the execution of legal contracts to ensure compliance. The absence of formalization of smart contracts based on recognized legal notions may however result in uncertainty during contract monitoring. The need for formal smart contract specifications, together with refinements and transformations to DLT implementations (code), is undeniable and urgent. This thesis, following a Design Science Research methodology, aims to partially address this need by developing a formal contract specification language called Symboleo, and selecting the suitable target language for generating smart contract code from Symboleo specifications. This thesis contributes a syntax and axiomatic semantics for Symboleo, with concepts rooted in a legal ontology, and supported by an editor. It also provides an analysis of possible target smart contract programming languages. These artifacts are evaluated with a comprehensive example of sales of perishable goods, with positive results.
Autooscillatory Dynamics in a Mathematical Model of the Metabolic Process in Aerobic Bacteria. Influence of the Krebs Cycle on the Self-Organization of a Biosystem
Creators: name: Grytsay, V. I.
name: Medentsev, A. G.
name: Arinbasarova, A. Yu.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Other Quantitative Biology (q-bio.OT)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We have modeled the metabolic process running in aerobic cells as open nonlinear dissipative systems. The map of metabolic paths and the general scheme of a dissipative system participating in the transformation of steroids are constructed. We have studied the influence of the Krebs cycle on the dynamics of the whole metabolic process and constructed projections of the phase portrait in the strange attractor mode. The total spectra of Lyapunov exponents, divergences, Lyapunov's dimensions of the fractality, Kolmogorov--Sinai entropies, and predictability horizons for the given modes are calculated. We have determined the bifurcation diagram presenting the dependence of the dynamics on a small parameter, which defines system's physical state.
description: 8 pages, 6 figures
EFFECTIVE RATES OF PROTECTION AND HIDDEN SECTORAL TRANSFERS BY PUBLIC AUTHORITIES
Creators: name: Kolsen, H.M.
name: Kolsen, H.M.
Publisher: name: Unknown
Year: 1983
Subjects: International Relations/Trade
Public Economics

description: Government intervention changes the allocation of resources through effects on input and output prices. While explicit forms of intervention have been the subject of many studies, implicit forms of intervention have been given much less attention. The price and output policies pursued by public authorities systematically cross-subsidise from densely populated to sparsely populated areas. Thus, their effects are in the opposite direction from the effects of tariffs and quotas. Examination of the effects of one form of intervention in isolation overstates the net effects of that intervention. Effective rates of cross-subsidies must be taken into consideration when attempting to measure the impact of government intervention on resource allocation.
Conditional transfer of quantum correlation in the intensity of twin beams
Creators: name: Zhang, Yun
name: Hayasaka, Kazuhiro
name: Kasai, Katsuyuki
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A conditional protocol of transferring quantum-correlation in continuous variable regime was experimentally demonstrated. The quantum-correlation in two pairs of twin beams, each characterized by intensity-difference squeezing of 7.0 dB, was transferred to two initially independent idler beams. The quantum-correlation transfer resulted in intensity-difference squeezing of 4.0 dB between two idler beams. The dependence of preparation probability and transfer fidellity on the selection bandwidth was also studied.
description: 5 pages, submitted
AGRICULTURAL RESOURCE MANAGEMENT
Creators: name: Dumsday, Robert G.
name: Dumsday, Robert G.
Publisher: name: Unknown
Year: 1983
Subjects: Land Economics/Use
Resource /Energy Economics and Policy

description: Today the land economists of yore have either gone to their reward or else been transmuted into resource economists who, with a few exceptions, spend their time in airy disputations about externalities, shadow prices and the choice of appropriate discount rates to be applied to future benefits (Campbell 1982, p. 9).
When Darwin Met Einstein: Gravitational Lens Inversion with Genetic Algorithms
Creators: name: Brewer, Brendon J.
name: Lewis, Geraint F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Gravitational lensing can magnify a distant source, revealing structural detail which is normally unresolvable. Recovering this detail through an inversion of the influence of gravitational lensing, however, requires optimisation of not only lens parameters, but also of the surface brightness distribution of the source. This paper outlines a new approach to this inversion, utilising genetic algorithms to reconstruct the source profile. In this initial study, the effects of image degradation due to instrumental and atmospheric effects are neglected and it is assumed that the lens model is accurately known, but the genetic algorithm approach can be incorporated into more general optimisation techniques, allowing the optimisation of both the parameters for a lensing model and the surface brightness of the source.
description: 9 pages, to appear in PASA
Review of Guido Milanese (a cura di), L’Epicuro di Bignone cent’anni dopo
Creators: name: Piergiacomi, Enrico
Publisher: name: Ciceroniana on line
Year: 2023

description: Guido Milanese (a cura di), L’Epicuro di Bignone cent’anni dopo, Vita e Pensiero, Milano 2023, 141 pp., ISBN 978-88-343-5147-5.
description: Ciceroniana on line, V. 7 N. 2 (2023): “Cicerone e l’ambiente” Atti del convegno a cura di Adalberto MAGNAVACCA & Tommaso RICCHIERI
Um die Einheit der Kirche
Creators: name: Weissgerber, Hans
name: Jacobs, Paul
name: Schütz, Eduard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 11 Nr. 3 (1962): Ökumenische Rundschau, Band 11, Heft 3
Application of a 2-dimensional hydrodynamic model for the assessment and design of instream channel restoration works
Creators: name: Lacey, Ralph William Jay
Publisher: name: University of British Columbia
Year: 2009

description: Currently, stream restoration activities in British Columbia emphasise the use of large woody debris (LWD), boulder, and other habitat structures (Slaney and Zaldokas 1997). The purpose of these works is to create locally varied hydraulic conditions; promote scour and pool formation; and create low velocity refuges. Little work, however, has been done to characterize the changes to local flow hydraulics, morphology and in stream habitat that results from these efforts. This study provides a methodology, through the use of field surveys and 2-dimensional hydrodynamic modelling, to assess morphological and hydraulic effects of instream LWD and boulder structures. Changes in available fish habitat were quantified through the use of Bovee (1978) probability-of-use curves. The selected field study site is a side channel of the Chilliwack River. Instream structures, installed in the summer of 1999, were subjected to a bankfull flow event that caused significant scour and bed morphology change. Results indicate that pool area increased by 50% due to the hydraulic effects of the instream structures. Two-dimensional flow model velocity and depth predictions compare favourably to recorded field values, while the predicted shear stresses, derived from the model's output, coincide reasonably with the newly formed pool locations. Pre- and post-restoration differences in fish habitat were quantified for a range of discharges using the weighted usable area (WUA) method (Bovee 1982). This analysis determined that the greatest benefit offered by the instream restoration structures was in supplying low velocity refuge areas during high flow events.
Thermal rectification and negative differential thermal conductivity based on a parallel-coupled double quantum-dot
Creators: name: Zhang, Yanchao
name: Su, Shanhe
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the heat flow transport properties of a parallel-coupled double quantum-dot system connected to two reservoirs with a temperature bias in the Coulomb blockade regime. We demonstrate that the effects of thermal rectification and negative differential thermal conductance (NDTC) exist in this system and analyze the influences of energy level difference and Coulomb interaction on the thermal rectification and NDTC. We find that this system can achieve a high thermal rectification ratio and NDTC when the asymmetry factor of the system is enhanced.
description: 21 pages, 7 figures