cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Black Farmers: Why Such a Severe and Continuing Decline?
Creators: name: Beale, Calvin
name: Beale, Calvin
Publisher: name: Unknown
Year: 1991
Subjects: Agricultural and Food Policy
Farm Management
Labor and Human Capital
Research and Development/Tech Change/Emerging Technologies

description: This is a revised version of a talk given at a Black History Month program, sponsored by the Farmers Home Administration. Beale sees the precipitous drop in the number of black farmers since the 1950's as stemming from both implacable circumstances and subsequent rational economic choices by the black farm population. He notes steps taken by Congress in 1987 to foster farmland acquisition by blacks (and other minorities). Beale then concludes by reminding us that black farmers, like other farmers, form just one part of rural society, and efforts to deal with their problems must also take account of the rest of the rural economy.-Ed.
Exit fees and termination fees revisited: funding irrigation infrastructure in a manner compatible with water trade
Creators: name: Biggar, Darryl
name: Biggar, Darryl
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural Finance
subject: Resource /Energy Economics and Policy
subject: exit fees
subject: irrigation infrastructure charges
subject: sunk complementary investments
subject: termination fees

description: It has long been recognised that the mechanism for funding irrigation infrastructure in Australia may be incompatible with efficient trade in the rural water market. If the revenue received by an irrigation operator is dependent on the volume of water entitlements held in the operator’s region, out-of-region permanent water sales threaten the operator’s revenue stream, potentially leading to higher charges on remaining irrigators, encouraging an inefficient ‘rush for the exit’. In response, irrigation operators have imposed restrictions on permanent water trade, such as exit fees and termination fees, to protect their revenue stream. Previous economic analysis has suggested that exit fees, in particular, are a barrier to efficient trade in the water market and should be abolished. In contrast, this paper argues that allowing irrigators to cancel their water delivery rights without fees or charges leads to inefficient trade in the water market, hinders efficient on-farm investment in sunk complementary assets and leads to inefficient network rationalisation decisions. Instead, the revenue stream of irrigation operators should be insulated from water trade decisions, through high termination fees, tying irrigation charges to the land, or tagging the obligation to pay delivery charges to the new owner of the traded water.
Nonhermitian defect states from lifetime differences
Creators: name: Bosch, Martí
name: Malzard, Simon
name: Hentschel, Martina
name: Schomerus, Henning
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Nonhermitian systems provide new avenues to create topological defect states. An unresolved general question is how much the formation of these states depends on asymmetric backscattering, be it nonreciprocal as in the nonhermitian skin effect or reciprocal as encountered between the internal states of asymmetric microresonators. Here, we demonstrate in a concrete, practically accessible setting of a lossy coupled-resonator optical waveguide that nonhermitian defect states can exist in open optical systems due to lifetime differences, without the need for asymmetric backscattering within or between the individual resonators. We apply our findings to a finite system of coupled circular resonators perturbed by nanoparticles, following the concept of creating an interface by inverting the position of the nanoparticles in half of the chain. We compare a coupled-mode tight-binding approximation to full-wave numerical simulations, showing that spectrally isolated defect states can indeed be implemented in this simple nonhermitian photonic device.
description: 8 pages, 6 figures
A strategy to compute the b-quark mass with non-perturbative accuracy
Creators: name: Heitger, Jochen
name: Sommer, Rainer
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We describe a strategy for a non-perturbative computation of the b-quark mass to leading order in 1/m in the Heavy Quark Effective Theory (HQET). The approach avoids the perturbative subtraction of power law divergencies, and the continuum limit may be taken. First numerical results in the quenched approximation demonstrate the potential of the method with a preliminary result m_b(4GeV)=4.56(2)(7) GeV. In principle, the idea may also be applied to the matching of composite operators or the computation of 1/m corrections in HQET.
description: Lattice2001(heavyquark) ; 3 pages
Electrogastrography: An Overview with Applications
Creators: name: Miljković, Nadica
Publisher: name: Zenodo
Year: 2021
Subjects: electrophysiology
biosignal
biomedical signal processing
signal processing
electrohysterography
electrogastrography
cybersickness
motion sickness
gut feeling
nausea
feature extraction
noise elimination
brain-stomach coupling

description: IEEE ED/IM/SSC and SP/EMB invited lecture held online at the Ss. Cyril and Methodius University in Skopje on April 20, 2021 in English by Associate Professor Nadica Miljković from University of Belgrade - School of Electrical Engineering. The announcement is also available on the Facebook page of IEEE Republic of Macedonia Section. ABSTRACT Exploration of electrical potentials in the human body has been subject of extensive scientific work and, among others, resulted in diverse clinical applications. Commonly known methods such as electrocardiography, electromyography, and electroencephalography have been studied at a large scale, whilst a body of knowledge of properties and application of electrical biosignals such as electrohysterogram and electrogastrogram remains scarce. In this talk, origin, development, and current state of methods and applications for electrogastrography will be presented and discussed. The ability to measure and analyze electrical activity originating from the smooth stomach muscles non-invasively (surface electrogastrography) makes this method a good candidate for scientific studies and diagnostics. However, the main barriers are its low amplitude (~ 100 μV) and low frequency (~0.05 Hz) content, making the surface electrogastrogram complex to record and analyze due to its vulnerability to noise. Recently published results showed that the electrogastrogram might be measured in a dynamic environment for assessment of cybersickness making it a promising technique for further investigation and utilization. This talk will also address interesting approaches such as procedures for studying brain-stomach coupling and gut feeling as well as clinical applications.
description: The third version contains a smaller file size with compressed images in comparison to the first, as well as typos corrected in comparison to the second version.
ENHANCING PRESCHOOL EDUCATION: EXPLORING EFFECTIVE APPROACHES TO FOSTER LEARNING THROUGH DRAWING
Creators: name: Seydabullaeva, Raziya
Publisher: name: Zenodo
Year: 2024

description: Early childhood education plays a pivotal role in shaping a child's cognitive, emotional, and social development. Among the myriad of educational strategies, drawing emerges as a powerful tool for preschool children to express themselves and cultivate essential skills. This scientific article delves into the various ways drawing can be utilized as an educational tool in preschool settings, emphasizing its potential to enhance creativity, fine motor skills, and cognitive development.
Ordering intermetallic alloys by ion irradiation: a way to tailor magnetic media
Creators: name: Bernas, H.
name: Halley, D.
name: Heinig, K. -H.
name: Attane, J. -Ph.
name: Ravelosona, D.
name: Marty, A.
name: Auric, P.
name: Chappert, C.
name: Samson, Y.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Combining He ion irradiation and thermal mobility below 600K, we both trigger and control the transformation from chemical disorder to order in thin films of an intermetallic ferromagnet (FePd). Kinetic Monte Carlo simulations show how the initial directional short range order determines order propagation. Magnetic ordering perpendicular to the film plane was achieved, promoting the initially weak magnetic anisotropy to the highest values known for FePd films. This post-growth treatment should find applications in ultrahigh density magnetic recording.
description: 7 pages, 3 Figures
Including Tetraquark Operators in the Low-Lying Scalar Meson Sectors in Lattice QCD
Creators: name: Darvish, Daniel
name: Brett, Ruairí
name: Bulava, John
name: Fallica, Jacob
name: Hanlon, Andrew
name: Hörz, Ben
name: Morningstar, Colin
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Lattice QCD allows us to probe the low-lying hadron spectrum in finite-volume using a basis of single- and multi-hadron interpolating operators. Here we examine the effect of including tetraquark operators on the spectrum in the scalar meson sectors containing the $K_0^*(700)$ ($κ$) and the $a_0(980)$ in $N_f = 2 + 1$ QCD, with $m_π\approx 230$ MeV. Preliminary results of additional finite-volume states found using tetraquark operators are shown, and possible implications of these states are discussed.
description: 6 pages, 4 figures, proceedings for The 15th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon, MENU-2019
Numerical Investigation on the Dynamics of Flame Propagating Inside the Tube for Stable Premixed Combustion of LPG-Air Mixture
Creators: name: Narayan, Nidheesh
name: Jothi, T. J. Sarvoththama
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Biophysics
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Developmental Biology

description: Current numerical investigation is tailored on finding the dynamics of flame propagation toward the controlled premixed explosion of (LPG) liquefied petroleum gas – air mixture. The simulation is carried out based on the laminar burning velocity in accordance with fuel blends. For the sake of controlling laminar burning velocity based on fuel composition, the fuel-air ratio, tube configuration, and burning condition are held constant. The study is carried out in a straight tube geometry of 0.03 m diameter at ϕ = 1.2 in ambient conditions. The dynamics of premixed flame was investigated in detail based on flame turbulent characteristics using the Flamelet Generated Manifold (FGM) computational approach. The evolution of finger-shaped flame from tulip flame, which occurs due to the augmentation in laminar combustion at lower laminar burning velocity, leads to stable intrinsic diffusion. It was interpreted and analyzed qualitatively based on the present numerical method and corroborated through experimental observation. The tulip flamelet changeovers to a laminar finger-shaped flamelet along with the non-uniform flow, at the laminar burning velocity (SLα) of 23 cm s−1. The increase of turbulent characteristics is exhibited at higher laminar burning velocity with the unstable tulip flamelet formation, as observed at SLα = 36 cm s−1. It has been reported in the literature that tulip flame formation has a greater susceptibility in leading toward detonation. As such, a linear rise of turbulent burning velocity was noted with time at SLα = 36 cm s−1. This reveals that the onset of unstable burning happens at a laminar burning velocity between 23 cm s−1<SLα <36 cm s−1. The higher turbulent characteristics of flamelets exhibited at greater laminar burning velocity were verified comprehensively, by turbulent Reynolds number, turbulent burning velocity, Damkohler number, flame brush thickness, etc. The intrinsic turbulence and dynamics of premixed flame were predicted well by the FGM model in conjunction with RANS (Reynolds Averaged Navier-Stokes equations) flow solver, elucidated by the experiments of literature. The flame velocity has also been validated experimentally at the onset of propagation.
An Analysis on Determinants of Farmers´ Adaptation to Climate Change in Korea
Creators: name: Kim, Chung-Sil
name: Jung, Hye-Kyung
name: Lee, Sang-Ho
name: Park, Soo-Young
name: Takei, Atsuo
name: Kim, Chung-Sil
name: Jung, Hye-Kyung
name: Lee, Sang-Ho
name: Park, Soo-Young
name: Takei, Atsuo
Publisher: name: Unknown
Year: 2012
Subjects: subject: Farm Management
subject: climate change
subject: adaptation measures
subject: farmers
subject: agriculture
subject: multinomial logit model

description: The purpose of this study is to analyze the determinants affecting Korean farmers' choice of adaptation measures to climate change using multinomial logit model. The major findings of this study are summarized as follows. First, the results indicate that 70.7 percent of farmers have adapted to climate change and 29.3 percent of farmers have not adapted to climate change. Second, the results show that farmers prefer changing the varieties and the seed/harvest time in order to adapt to climate change. Third, the findings also indicate that experience, cultivated area, successor to farming, use of computer and Internet, number of farmer organizations, farm household income, extensional education, and use of smartphone have a significant impact on adaptation to climate change.
Negative moments of characteristic polynomials of random GOE matrices and singularity-dominated strong fluctuations
Creators: name: Fyodorov, Yan V.
name: Keating, Jonathan P.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mathematical Physics (math-ph)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We calculate the negative integer moments of the (regularized) characteristic polynomials of N x N random matrices taken from the Gaussian Orthogonal Ensemble (GOE) in the limit as $N \to \infty$. The results agree nontrivially with a recent conjecture of Berry & Keating motivated by techniques developed in the theory of singularity-dominated strong fluctuations. This is the first example where nontrivial predictions obtained using these techniques have been proved.
description: 13 pages
MOESM3 of Alopecia in Belgian Blue crossbred calves: a case series
Creators: name: Wieland, Matthias
name: Mann, Sabine
name: Gollnick, Nicole
name: Monir Majzoub-Altweck
name: Knubben-Schweizer, Gabriela
name: Langenmayer, Martin
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer

description: Additional file 3. Summary of the computer assisted calculation of the lactating cow ration. Calculated wet weight, dry matter, net energy content for lactation, raw protein, ruminal nitrogen balance, calcium, phosphorus, magnesium and sodium content of the lactating cow ration using a computer assisted calculation program.
Physics to plan AWAKE Run 2
Creators: name: Muggli, Patric
Publisher: name: arXiv
Year: 2019
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: We briefly describe the basic physics principles considered for planning of the AWAKE Run 2 experiment. These principles are based on experimental results obtained during Run 1 and knowledge obtained from numerical simulation results and other experiments. The goal of Run 2 is to accelerate an electron bunch with a narrow relative energy spread and an emittance sufficiently low for applications. The experiment will use two plasmas, electron bunch seeding for the SM process, on-axis external injection of an electron bunch and electron bunch parameters to reach plasma blow-out, beam loading and beam matching.
description: six pages, three figures, submitted for EAAC Proceedings
MPEC 2025-D05 : 2025 CK4
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 CK4

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Large N and double scaling limits in two dimensions
Creators: name: Ferrari, Frank
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently, the author has constructed a series of four dimensional non-critical string theories with eight supercharges, dual to theories of light electric and magnetic charges, for which exact formulas for the central charge of the space-time supersymmetry algebra as a function of the world-sheet couplings were obtained. The basic idea was to generalize the old matrix model approach, replacing the simple matrix integrals by the four dimensional matrix path integrals of N=2 supersymmetric Yang-Mills theory, and the Kazakov critical points by the Argyres-Douglas critical points. In the present paper, we study qualitatively similar toy path integrals corresponding to the two dimensional N=2 supersymmetric non-linear sigma model with target space CP^n and twisted mass terms. This theory has some very strong similarities with N=2 super Yang-Mills, including the presence of critical points in the vicinity of which the large n expansion is IR divergent. The model being exactly solvable at large n, we can study non-BPS observables and give full proofs that double scaling limits exist and correspond to universal continuum limits. A complete characterization of the double scaled theories is given. We find evidence for dimensional transmutation of the string coupling in some non-critical string theories. We also identify en passant some non-BPS particles that become massless at the singularities in addition to the usual BPS states.
description: 38 pages, including an introductory section that makes the paper self-contained, two figures and one appendix; v2: typos corrected
Ideenheft digitale Lehre_Wie digitale Lehre (mehr) Spaß machen kann
Creators: name: Deilmann Wansing, Xenia
name: Köhler, Simone
name: Nielen, Mona
name: Petersen, Seraphine
name: Saelzer, Katharina
name: Smetana, Elisabeth
name: Weber, Leonie
name: Zanolli, Fabio
Publisher: name: Zenodo
Year: 2021
Subjects: Lehre und Lernen
digitale Lehre
digitales Lernen
digitales Semester
Lernende
Lehrende
Wittener Didaktik
Witten Didactics
Ethik und Organisation
Hochschuldidaktik

description: Liebe Lernenden, liebe Lehrenden,
 die letzten zwei Semester waren für uns alle eine Herausforderung. Unsere gewohnte und geliebte Wittener Seminarkultur ist weggebrochen, neue digitale Möglichkeiten haben sich eröffnet - ja, sie haben uns zu Beginn sogar überflutet. Wir haben Vieles ausprobiert, beiseitegelegt, wieder aufgegriffen und anders eingesetzt. Dabei haben wir langsam ein gutes Gefühl entwickelt, wie wir uns den digitalen Lernraum möglichst angenehm organisieren können.
 Diese Erfahrung aus nun fast einem Jahr digitaler Lehre an der Universität Witten/Herdecke möchten wir, die Studierenden des E&O-Masterforschungskolloquiums des Wintersemesters 2020/21, in diesem kleinen Ideenheft zusammenfassen und mit euch Lernenden und Lehrenden teilen.
Current Investment and Loan for Agriculture in Korea and Its Implications
Creators: name: Park, JoonKee
name: Park, JoonKee
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: investment and loan
subject: direct payment
subject: crop insurance
subject: management risk control
subject: agricultural policy

description: This report described investment and loan plans for the agricultural sector following the changing circumstances of Korea’s agricultural policies, the direct payment programs, the agricultural crop insurance and the management risk control schemes, which are considered to be key support policies for stabilized farmers’ management. The future agricultural policies should be oriented in the direction of creating future demand for advanced agri-food, controlling management risk of large-scale farmers, and improving old and small-scale farmers’ welfare and the rural living environment. Examination was made for the direct payment programs, the agricultural crop insurance, and the scheme for supporting management recovery by the farmland bank as detailed support policies. It is necessary to clarify the direction of direct payment programs, about whether it would be the single payment scheme as in the EU or the individual direct payment scheme. The agricultural crop insurance is necessary to prepare for conversion to price insurance and income insurance in terms of farmers’ management risk control. The management recovery support system faces diversified management risks with the increasing number of large-scale farmers. It is necessary to develop support systems of diversified types that can effectively control farmers’ management risk.
UPDATED ESTIMATED ECONOMIC WELFARE IMPACTS OF PORCINE EPIDEMIC DIARRHEA VIRUS (PEDV)
Creators: name: Paarlberg, Philip
name: Paarlberg, Philip
Publisher: name: Unknown
Year: 2014
Subjects: subject: Demand and Price Analysis
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Porcine Epidemic Diarrhea
subject: PEDv
subject: Economic Impacts

description: Estimates of pig loss from Porcine Epidemic Diarrhea Virus (PEDv) determine changes in economic welfare. Hog and pork prices rise, so aggregate returns to hog growers increase. For a 3% annual pig loss, growers gain $1.2 billion annually, while for a 6% annual pig loss, the gain is $2.3 billion. Losses to infected growers are smaller than gains to uninfected growers. Annual returns to hog slaughter fall by $481 to $929 million. Retail value-added falls by $1.1 to $2.2 billion. Annual consumer surplus also declines from $300 to $600 million. The estimated net annual decrease for U.S. economic welfare from PEDv summed across all effects ranges from $900 million to $1.8 billion.
How the State Community Development Block Grant Program Assists Rural Economies
Creators: name: Sidor, John
name: Sidor, John
Publisher: name: Unknown
Year: 1991
Subjects: Community/Rural/Urban Development
Labor and Human Capital
Public Economics

description: States spent nearly $1.5 billion in Community Development Block Grant funds in the 1980's to stimulate rural economies. States distributed these funds throughout rural areas, with the more rural areas receiving a larger share of funds than their share of the State population. Most of the firms assisted by State CDBG credit assistance were local: 25 percent were startups and 45 percent were expansions. Most of the assisted firms were very small: 71 percent employed 26 people or fewer. In more rural areas, a greater proportion of the assisted firms were startups and very small. The average cost per job was about $5,100. About three-quarters of the jobs went to low- or moderate-income people, but about a third of the jobs paid annual wages of $10,400 or less.
Policy and competitiveness of agroforestry-based technologies for maize production in Cameroon: An application of policy analysis matrix
Creators: name: Adesina, Akinwumi A.
name: Coulibaly, Ousmane N.
name: Adesina, Akinwumi A.
name: Coulibaly, Ousmane N.
Publisher: name: Unknown
Year: 1998
Subjects: Agricultural and Food Policy
Production Economics

description: Questions have been raised about the ecological consequences and economic sustainability of exclusive reliance on chemical fertilizers for the rapidly expanding maize production across sub-Saharan Africa. Alternative agroforestry-based natural resource management technologies have been developed for farmers. This paper applies the policy analysis matrix (PAM) to analyze the social profitability of agroforestry-based technologies for maize production in the highland savanna zone of Cameroon, and the impacts of policy shifts on the financial competitiveness of maize production under these technologies. The paper shows that maize production under agroforestry-based systems has high comparative advantage. © 1998 Elsevier Science B.V. All rights reserved.
MOESM2 of WGS based study of the population structure of Salmonella enterica serovar Infantis
Creators: name: Gymoese, Pernille
name: Kiil, Kristoffer
name: Torpdahl, Mia
name: Østerlund, Mark
name: Sørensen, Gitte
name: Olsen, John
name: Nielsen, Eva
name: Litrup, Eva
Publisher: name: figshare
Year: 2019
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2: Figure S1. Maximum parsimony tree of 105 strains of Salmonella Infantis based on 28,860 core-genome SNPs with Salmonella Infantis CVM44454 as the reference genome. Branches are labelled with the number of SNP differences. Strains belonging to E-Burst Group (eBG) 31 and 297 are marked in red circles. Figure S2. Q-plots based on probability values (Q) from STRUCTURE analysis of 2311 core-genome SNPs identified in 100 Salmonella Infantis strains with Salmonella Infantis CVM44454 as the reference genome. Genetic clusters are marked with curly brackets and cluster number. A: STRUCTURE analysis on main lineage with 85 strains B: STRUCTURE analysis on distant lineage with 15 strains. Figure S3. Mean evolutionary tree calculated from BEAST analysis with the best-fitted substitution model (GTR-BS-R) on 2311 core-genome SNPs. Branches are coloured according to clusters and branch length correlates with time in years. Figure S4. Maximum parsimony tree of 167 strains of Salmonella Infantis based on 3454 core-genome SNPs with Salmonella Infantis CVM44454 as the reference genome. The collection of strains includes the 100 strains examined in this study, all genomes from Yokoyama et al. [23] (labelled Japan-clusters) and additional 6 genomes from SRA belonging to the distant lineage (cluster 7 and 8). Nodes are coloured according to clusters. Figure S5. Maximum parsimony tree of 200 genomes of Salmonella Infantis based on 4079 core-genome SNPs with Salmonella Infantis CVM44454 as the reference genome. The collection includes the 100 strains examined in this study and additional 50 genomes isolated from avian sources and 50 genomes from swine (downloaded from SRA). Nodes are coloured according to clusters and source. Figure S6. Core genome-derived phylogeny of 105 strains of Salmonella Infantis including additional 7852 public available S. Infantis genomes from Enterobase. RapidNJ tree based on cgMLST. Nodes are coloured according to clusters defined in this study.
Consistent partial bosonization of the extended Hubbard model
Creators: name: Stepanov, E. A.
name: Harkov, V.
name: Lichtenstein, A. I.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We design an efficient and balanced approach that captures major effects of collective electronic fluctuations in strongly correlated fermionic systems using a simple diagrammatic expansion on a basis of dynamical mean-field theory. For this aim we perform a partial bosonization of collective fermionic fluctuations in leading channels of instability. We show that a simultaneous account for different bosonic channels can be done in a consistent way that allows to avoid the famous Fierz ambiguity problem. The present method significantly improves a description of an effective screened interaction $W$ in both, charge and spin channels, and has a great potential for application to realistic $GW$-like calculations for magnetic materials.
Induced innovation and land degradation: Results from a bioeconomic model of a village in West Africa
Creators: name: Barbier, Bruno
name: Barbier, Bruno
Publisher: name: Unknown
Year: 1998
Subjects: Land Economics/Use
Research Methods/ Statistical Methods

description: This paper introduces a modeling method which simulates a village's response to population and market pressure. The method combines a recursive and dynamic linear programming model with a biophysical model of soil condition and plant growth that predicts yields and land degradation for different type of land, land use and cropping patterns. The linear programming model simulates farmers' plans aggregated at the village level under constraints of risk aversion, food consumption, land area, soil fertility, soil depth, labor and cash availability. Detailed agroecological factors determine the main processes of land degradation. A large number of technological alternatives, representing different degrees of labor and/or land-saving techniques available in the study areas, are introduced, taking into account their respective constraints, costs and advantages. The method has been calibrated for a village located in the sub-humid region of Burkina Faso. Several simulations are carried out to the Year 2030. The results show that population pressure leads to intensification and investment in land conservation practices but not necessarily to better farm incomes. Increasing market opportunities can play a more positive role in boosting productivity, but for the next decades the best way to increase production per farmer is to let farmers migrate from the highpopulation- density areas to the low-population-density areas because, under the current economic conditions of most Sahelian countries, intensification per hectare is stil more expensive than the fallow system. © 1998 Elsevier Science B.V. All rights reserved.
The Higgs Mechanism -- Hasse Diagrams for Symplectic Singularities
Creators: name: Bourget, Antoine
name: Cabrera, Santiago
name: Grimminger, Julius F.
name: Hanany, Amihay
name: Sperling, Marcus
name: Zajac, Anton
name: Zhong, Zhenghao
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explore the geometrical structure of Higgs branches of quantum field theories with 8 supercharges in 3, 4, 5 and 6 dimensions. They are symplectic singularities, and as such admit a decomposition (or foliation) into so-called symplectic leaves, which are related to each other by transverse slices. We identify this foliation with the pattern of partial Higgs mechanism of the theory and, using brane systems and recently introduced notions of magnetic quivers and quiver subtraction, we formalise the rules to obtain the Hasse diagram which encodes the structure of the foliation. While the unbroken gauge symmetry and the number of flat directions are obtainable by classical field theory analysis for Lagrangian theories, our approach allows us to characterise the geometry of the Higgs branch by a Hasse diagram with symplectic leaves and transverse slices, thus refining the analysis and extending it to non-Lagrangian theories. Most of the Hasse diagrams we obtain extend beyond the cases of nilpotent orbit closures known in the mathematics literature. The geometric analysis developed in this paper is applied to Higgs branches of several Lagrangian gauge theories, Argyres-Douglas theories, five dimensional SQCD theories at the conformal fixed point, and six dimensional SCFTs.
description: v2: 70 pages, 30 tables, 22 figures, typos corrected, added references
THE ROLE OF LITERATURE IN LANGUAGE TEACHING
Creators: name: Bo'riyeva, Gulhayo Ivadulla qizi
Publisher: name: Zenodo
Year: 2025

description: In this article, the important role of literature in language teaching, recommended types of books and the interests of language learners are discussed in detail, taking into account the results of the survey. Also, some recommendations are given as a solution to problems in this area
Cosmic Structure Formation with Topological Defects
Creators: name: Durrer, R.
name: Kunz, M.
name: Melchiorri, A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Topological defects are ubiquitous in physics. Whenever a symmetry breaking phase transition occurs, topological defects may form. The best known examples are vortex lines in type II super conductors or in liquid Helium, and declination lines in liquid crystals. In an adiabatically expanding universe which cools down from a very hot initial state, it is quite natural to postulate that topological defects may have emerged during a phase transition in the early universe and that they may have played the role of initial inhomogeneities seeding the formation of cosmic structure. This basic idea goes back to Kibble (1976). In this report we summarize the progress made in the investigation of Kibble's idea during the last 25 years. Our understanding of the formation and evolution of topological defects is reported almost completely in the beautiful book by Vilenkin & Shellard or the excellent Review by Hindmarsh & Kibble, and we shall hence be rather short on that topic. Nevertheless, in order to be self contained, we have included a short chapter on spontaneous symmetry breaking and defect formation. Our main topic is however the calculation of structure formation with defects, results which are not included in the above references.
description: Review for Physics Reports, 133 pages 29 figures. Updated to match published version. Better quality and color figures are available at http://mpej.unige.ch/~durrer
MOESM1 of Alopecia in Belgian Blue crossbred calves: a case series
Creators: name: Wieland, Matthias
name: Mann, Sabine
name: Gollnick, Nicole
name: Monir Majzoub-Altweck
name: Knubben-Schweizer, Gabriela
name: Langenmayer, Martin
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Feed components contents. Composition and contents of milk replacers, vitamin supplement, mineral feeds and grain mix that were fed/applied to calves and cows at the dairy farm.
Autonomous Energy Management system achieving piezoelectric energy harvesting in Wireless Sensors
Creators: name: Kassan, Sara
name: Gaber, Jaafar
name: Lorenz, Pascal
Publisher: name: arXiv
Year: 2019
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Wireless Sensor Networks (WSNs) are extensively used in monitoring applications such as humidity and temperature sensing in smart buildings, industrial automation, and predicting crop health. Sensor nodes are deployed in remote places to sense the data information from the environment and to transmit the sensing data to the Base Station (BS). When a sensor is drained of energy, it can no longer achieve its role without a substituted source of energy. However, limited energy in a sensor's battery prevents the long-term process in such applications. In addition, replacing the sensors' batteries and redeploying the sensors is very expensive in terms of time and budget. To overcome the energy limitation without changing the size of sensors, researchers have proposed the use of energy harvesting to reload the rechargeable battery by power. Therefore, efficient power management is required to increase the benefits of having additional environmental energy. This paper presents a new self-management of energy based on Proportional Integral Derivative controller (PID) to tune the energy harvesting and Microprocessor Controller Unit (MCU) to control the sensor modes.
Viral evolution under the pressure of an adaptive immune system - optimal mutation rates for viral escape
Creators: name: Kamp, Christel
name: Wilke, Claus O.
name: Adami, Christoph
name: Bornholdt, Stefan
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Based on a recent model of evolving viruses competing with an adapting immune system [1], we study the conditions under which a viral quasispecies can maximize its growth rate. The range of mutation rates that allows viruses to thrive is limited from above due to genomic information deterioration, and from below by insufficient sequence diversity, which leads to a quick eradication of the virus by the immune system. The mutation rate that optimally balances these two requirements depends to first order on the ratio of the inverse of the virus' growth rate and the time the immune system needs to develop a specific answer to an antigen. We find that a virus is most viable if it generates exactly one mutation within the time it takes for the immune system to adapt to a new viral epitope. Experimental viral mutation rates, in particular for HIV (human immunodeficiency virus), seem to suggest that many viruses have achieved their optimal mutation rate. [1] C.Kamp and S. Bornholdt, Phys. Rev. Lett., 88, 068104 (2002)
description: 5 pages RevTeX including 3 figures
On Assessing Driver Awareness of Situational Criticalities: Multi-modal Bio-sensing and Vision-based Analysis, Evaluations, and Insights
Creators: name: Siddharth, Siddharth
name: Trivedi, Mohan M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Automobiles for our roadways are increasingly using advanced driver assistance systems. The adoption of such new technologies requires us to develop novel perception systems not only for accurately understanding the situational context of these vehicles, but also to infer the driver's awareness in differentiating between safe and critical situations. This manuscript focuses on the specific problem of inferring driver awareness in the context of attention analysis and hazardous incident activity. Even after the development of wearable and compact multi-modal bio-sensing systems in recent years, their application in driver awareness context has been scarcely explored. The~capability of simultaneously recording different kinds of bio-sensing data in addition to traditionally employed computer vision systems provides exciting opportunities to explore the limitations of these sensor modalities. In this work, we explore the applications of three different bio-sensing modalities namely electroencephalogram (EEG), photoplethysmogram (PPG) and galvanic skin response (GSR) along with a camera-based vision system in driver awareness context. We assess the information from these sensors independently and together using both signal processing- and deep learning-based tools. We show that our methods outperform previously reported studies to classify driver attention and detecting hazardous/non-hazardous situations for short time scales of two seconds. We use EEG and vision data for high resolution temporal classification (two seconds) while additionally also employing PPG and GSR over longer time periods. We evaluate our methods by collecting user data on twelve subjects for two real-world driving datasets among which one is publicly available (KITTI dataset) while the other was collected by us (LISA dataset) with the vehicle ....
description: Journal article published in MDPI Brain Sciences. arXiv admin note: text overlap with arXiv:1905.00503
MOESM1 of WGS based study of the population structure of Salmonella enterica serovar Infantis
Creators: name: Gymoese, Pernille
name: Kiil, Kristoffer
name: Torpdahl, Mia
name: Østerlund, Mark
name: Sørensen, Gitte
name: Olsen, John
name: Nielsen, Eva
name: Litrup, Eva
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Table S1. Strain information on 105 strains of Salmonella Infantis. Table S2. Q-values from STRUCTURE analysis of 100 strains of Salmonella Infantis.
PEDAGOGIKA YO'NALISHI TALABALARI UCHUN INGLIZ TILI DARSLARINING O'ZIGA XOS XUSUSIYATLARI
Creators: name: Maxmudova, Shaxlo Mizrobovna
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqola pedagogika yo‘nalishi talabalari uchun Ingliz tili darslarining ahamiyati va o‘ziga xos xususiyatlarini ochib beradi. Ingliz tili darslari nafaqat til bilimini oshirish, balki kelajakda o‘qituvchi sifatida talabalar uchun zarur pedagogik ko‘nikmalarni rivojlantirishga xizmat qiladi. Darslarda interaktiv o‘qitish usullari, madaniy kontekstni o‘rganish va talabalarni baholash jarayonlari orqali ta’lim samaradorligini oshirishga qaratilgan tadbirlar olib boriladi. Darslar davomida, talabalarga bosqichma-bosqich o‘z fikrlarini ingliz tilida ifoda etish, guruhda ishlash va muhokama qilish imkoniyatlari yaratiladi. Ushbu jarayonlar talabalarning o‘z-o‘zini rivojlantirish va mustaqil fikrlash qobiliyatini oshirishga yordam beradi. Natijada, bu darslar kelajak o‘qituvchilarining professional o‘sishlarini ta’minlashda muhim rol o‘ynaydi. Ushbu tadqiqot bo‘lajak pedagoglar uchun ingliz tilini o‘qitishning innovatsion yo‘nalishlarini belgilab, ularning kelajakdagi ta’lim faoliyatlarida muvaffaqiyatli ishlashlariga yordam berish maqsadida amalga oshirilgan. Umuman olganda, maqola bo‘lajak pedagoglarni tayyorlashda ingliz tilini o‘qitishda yuzaga keladigan muhim xususiyatlar va metodlarni aniqlashga qaratilgan bo‘lib, ta’lim sifatini oshirishga va pedagogik amaliyotda innovatsiyalarni joriy etishga xizmat qiladi.
MOESM2 of Alopecia in Belgian Blue crossbred calves: a case series
Creators: name: Wieland, Matthias
name: Mann, Sabine
name: Gollnick, Nicole
name: Monir Majzoub-Altweck
name: Knubben-Schweizer, Gabriela
name: Langenmayer, Martin
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 60506 Virology
subject: Computational Biology

description: Additional file 2. Results of feedstuff analysis. Percent dry matter, net energy content for lactation, percent protein, percent fibre, percent fat, percent ash, calcium, phosphorus, sodium, potassium, magnesium, iron, zinc, copper, chloride and manganese of grass silage, hay and corn pellets fed to cows at the dairy farm.
Revista Laberinto - Volumen 20 Nº1 - 2020
Creators: name: Revista Laberinto LACA
Publisher: name: figshare
Year: 2021
Subjects: subject: 170101 Biological Psychology (Neuropsychology, Psychopharmacology, Physiological Psychology)
subject: FOS: Psychology
subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: La Revista Laberinto inicia a finales de los años noventa como un boletín informativo entre los laboratorios de psicología del país. Desde entonces, ha sido un espacio en el que estudiantes, profesores y profesionales pueden publicar sus trabajos, investigaciones y experiencias académicas, en temas relevantes para la investigación en psicología básica y experimental del ámbito nacional o internacional.
Acompañada de la supervisión del profesor Germán Gutiérrez y dirigida y escrita por varias generaciones de estudiantes, ha tenido su casa en el Laboratorio de Aprendizaje y Comportamiento Animal de la Universidad Nacional de Colombia, y ha extendido sus conexiones más allá de las fronteras nacionales.
En la actualidad continúa con su compromiso de divulgación científica, publicando trabajos de investigación, revisiones teorías, reseñas, ensayos y entrevistas en el área. Si usted está interesado en dar a conocer su trabajo puede enviar su manuscrito, en español o en inglés, al siguiente correo electrónico: laberinto_fchbog@unal.edu.co
Tracking Biodiversity Data (Re)use
Creators: name: Poelen, Jorrit H
Publisher: name: Zenodo
Year: 2021

description: Tracking Biodiversity Data (Re)use iDigBio Lunch Seminar Zoom / Monday 12 April 2021 12p Eastern by Jorrit H. Poelen Abstract As the web of biodiversity knowledge continues to grow and become more complex, practical questions arise: How do we publish and review works that use big and complex datasets? How do we keep track of data use across biodiversity data networks? How do we keep our digital data available for the next 50 years? In this iDigBio lunch seminar, Jorrit Poelen works towards answering these questions through use cases taken from Global Biotic Interactions (GloBI, https://globalbioticinteractions.org), Terrestrial Parasite Tracker TCN (TPT, https://parasitetracker.org) and Preston (https://preston.guoda.bio), a biodiversity data tracker. References JH Poelen, JD Simons, CJ Mungall (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics. https://doi.org/10.1016/j.ecoinf.2014.08.005. MJ Elliott, JH Poelen, JAB Fortes (2020). Toward Reliable Biodiversity Dataset References. Ecological Informatics. https://doi.org/10.1016/j.ecoinf.2020.101132 Funding National Science Foundation Award # 1839201. EAGER: Towards the Web of Biodiversity Knowledge: Understanding Data Connectedness to Improve Identifier Practices. https://www.nsf.gov/awardsearch/showAward?AWD_ID=1839201 . National Science Foundation Awards # 1901932, 1901926. Collaborative Research: Digitization TCN: Digitizing collections to trace parasite-host associations and predict the spread of vector-borne disease. https://www.nsf.gov/awardsearch/showAward?AWD_ID=1901932 https://www.nsf.gov/awardsearch/showAward?AWD_ID=1901926