cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Clusters of Organic Operations and their Impact on Regional Economic Growth in the United States
Creators: name: Marasteanu, I. Julia
name: Jaenicke, Edward C.
name: Marasteanu, I. Julia
name: Jaenicke, Edward C.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Organic Agriculture
subject: Regional Economic Development
subject: Spatial Econometrics
subject: Hotspots
subject: Treatment Effects

description: The purpose of this paper is to examine the impact of clusters of certified organic operations on county-level general economic indicators in order to assess the potential of organic clustering as an economic development tool. We first identify clusters of organic operations using the Local Moran’s I test statistic, which tests the null hypothesis of no spatial autocorrelation, and data from the National Organic Program and the U.S. Census. We then use these spatially defined clusters, as well as county-level data from publicly available sources such as the U.S. Census, the Bureau of Labor Statistics, the USDA’s Census of Agriculture, and the USDA’s Agricultural Resource Management Survey (ARMS), to analyze the impact of clustering on county-level economic indicators. To do this, we use a treatment effects model in which the dependent variable is a county-level economic indicator and the treatment is being in a cluster of organic operations. For comparison, we also perform these analyses for general agricultural establishments.
A wave function perspective and efficient truncation of renormalised second-order perturbation theory
Creators: name: Backhouse, Oliver J.
name: Nusspickel, Max
name: Booth, George H.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present an approach to renormalized second-order Green's function perturbation theory (GF2) which avoids all dependency on continuous variables, grids or explicit Green's functions, and is instead formulated entirely in terms of static quantities and wave functions. Correlation effects from MP2 diagrams are iteratively incorporated to modify the underlying spectrum of excitations by coupling the physical system to fictitious auxiliary degrees of freedom, allowing for the single-particle orbitals to delocalize into this additional space. The overall approach is shown to be rigorously $\mathcal{O}[N^5]$, after an appropriate compression of this auxiliary space. This is achieved via a novel scheme which ensures that a desired number of moments of the underlying occupied and virtual spectra are conserved in the compression, allowing a rapid and systematically improvable convergence to the limit of the effective dynamical resolution. The approach is found to then allow for the qualitative description of stronger correlation effects, avoiding the divergences of MP2, as well as its orbital-optimized version. On application to the G1 test set, we find that modifications to only up to the third spectral moment of the underlying spectrum from which the double excitations are built is required for accurate energetics, even in strongly correlated regimes. This is beyond simple self-consistent changes to the density matrix of the system, but far from requiring a description of the full dynamics of the frequency-dependent self-energy.
description: 17 pages, 9 figures
Giant-dipole Resonance and the Deformation of Hot, Rotating Nuclei
Creators: name: Kusnezov, Dimitri
name: Ormand, W. Erich
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The development of nuclear shapes under the extreme conditions of high spin and/or temperature is examined. Scaling properties are used to demonstrate universal properties of both thermal expectation values of nuclear shapes as well as the minima of the free energy, which can be used to understand the Jacobi transition. A universal correlation between the width of the giant dipole resonance and quadrupole deformation is found, providing a novel probe to measure the nuclear deformation in hot nuclei.
description: 6 pages including 6 figures. To appear in Phys. Rev. Lett. Revtex.
On the Nexus between Economic and Obesity Crisis in Spain: Parametric and Nonparametric Analysis of the Role of Economic Factors on Obesity Prevalence
Creators: name: Radwan, Amr
name: Gil, José M.
name: Radwan, Amr
name: Gil, José M.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Health Economics and Policy
subject: International Relations/Trade
subject: Obesity
subject: Multinomial Logit
subject: Multivariate Adaptive Regression Splines (MARS)
subject: Spain

description: Poor diets and rising obesity rates dominate the current food, nutrition and health policy debate in many countries, including Spain. Despite the increasing obesity rate in Spain, there has been no known published research in Spain that has studied the economic factors affecting obesity prevalence. The main aim of our work is analysing the relevance of economic factors in obesity prevalence in Spain. This aim is especially relevant in shadow of the Economic crisis that hit Spain recently. Our methodological approach depending upon the estimation of a multinomial Logit Regression (MLR) Combined with a nonparametric model, the Multivariate Adaptive Regression Splines (MARS), to judge the role of different socioeconomic factors on the obesity prevalence. Despite the desirable advantages of using nonparametric models such as MARS, our paper is the first attempt to use this type of models to analyse the determinant factors of obesity prevalence. Our results suggest that Socio Economic factors seem to have a significant impact on obesity prevalence. MARS models outperform the traditional MLR and could be a helpful tool for understanding the nature of the relationship and moreover it could be helpful as pre estimate guides the estimation of its parametric counterpart.
Platypleura Amyot and Audinet-Serville 1843
Creators: name: Lee, Young June
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Protozoa
Choanozoa
Choanoflagellatea
Choanoflagellida
Acanthoecidae
Platypleura

description: Genus Platypleura Amyot and Audinet-Serville, 1843
 Platypleura Amyot and Audinet-Serville, 1843: 465.
 Type species: Cicada stridula Linnaeus, 1758 (South Africa).
 Poecilopsaltria Stål, 1866: 2.
 Type species: Tettigonia octoguttata Fabricius, 1798 (India).
description: Published as part of Lee, Young June, 2009, A checklist of Cicadidae (Insecta: Hemiptera) in Palawan with five new species, pp. 2617-2639 in Journal of Natural History 43 (41 - 42) on page 2618, DOI: 10.1080/00222930903244002, http://zenodo.org/record/5217900
Evaluation of time-dependent correlators after a local quench in iPEPS: hole motion in the t-J model
Creators: name: Hubig, C.
name: Bohrdt, A.
name: Knap, M.
name: Grusdt, F.
name: Cirac, J. I.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Infinite projected entangled pair states (iPEPS) provide a convenient variational description of infinite, translationally-invariant two-dimensional quantum states. However, the simulation of local excitations is not directly possible due to the translationally-invariant ansatz. Furthermore, as iPEPS are either identical or orthogonal, expectation values between different states as required during the evaluation of non-equal-time correlators are ill-defined. Here, we show that by introducing auxiliary states on each site, it becomes possible to simulate both local excitations and evaluate non-equal-time correlators in an iPEPS setting under real-time evolution. We showcase the method by simulating the t-J model after a single hole has been placed in the half-filled antiferromagnetic background and evaluating both return probabilities and spin correlation functions, as accessible in quantum gas microscopes.
description: 12 pages, 5 figures, minor revision requested by SciPost Physics
Structural Change and its Impact on Traditional Agricultural Sectors of Rapidly Developing Countries: The Case of Natural Rubber
Creators: name: Barlow, Colin
name: Jayasuriya, S. K.
name: Barlow, Colin
name: Jayasuriya, S. K.
Publisher: name: Unknown
Year: 1987
Subjects: Agribusiness
Production Economics

description: Rapid structural change is now a major feature of several Southeast Asian economies. It generally involves greatly expanded exports of certain commodities and manufactures accompanied by a large growth in services, and poses serious difficulties for traditional labour-intensive sectors. One important sector affected in this way is that producing natural rubber in Malaysia, Indonesia and Thailand. The difficulties mentioned occur through both "resource pull" effects - which are especially important in raising real wages, and "spending" effects - which tend to lead to an appreciation of the real exchange rate. These effects, and the problems arising from them, are examined and compared for each of the rubber sectors above. While changes of this nature call for diminution in the size of traditional sectors, there is also a need to improve economic efficiency, notably by adopting new technology more appropriate· to the emerging resource price configuration, and by moving to an agriculture where off-farm employment and other linkages are increasingly significant. Such adjustment may be both helped and constrained by institutional factors and official policies, which accordingly require careful review. These crucial policy issues, and the degree to which necessary adjustments have been made, are investigated for the rather different contexts in each of the three natural rubber-producing countries. The analysis is thought to have wider relevance for other developing countries with traditional agricultural sectors
Mass inequalities for baryons with heavy quarks
Creators: name: Karliner, Marek
name: Rosner, Jonathan L.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Baryons with one or more heavy quarks have been shown, in the context of a nonrelativistic description, to exhibit mass inequalities under permutations of their quarks, when spin averages are taken. These inequalities sometimes are invalidated when spin-dependent forces are taken into account. A notable instance is the inequality $2E(Mmm) > E(MMm) + E(mmm)$, where $m = m_u = m_d$, satisfied for $M = m_b$ or $M = m_c$ but not for $M = m_s$, unless care is taken to remove effects of spin-spin interactions. Thus in the quark-level analog of nuclear fusion, the reactions $Λ_b Λ_b \to Ξ_{bb}N$ and $Λ_c Λ_c \to Ξ_{cc}^{++}n$ are exothermic, releasing respectively 138 and 12 MeV, while $ΛΛ\to ΞN$ is endothermic, requiring an input of between 23 and 29 MeV. Here we explore such mass inequalities in the context of an approach, previously shown to predict masses successfully, in which contributions consist of additive constituent-quark masses, spin-spin interactions, and additional binding terms for pairs each member of which is at least as heavy as a strange quark.
description: 6 pages, no figures. Discussion of spin-spin interactions added. To be published in Phys. Rev. D
Progress on stochastic background search codes for LIGO
Creators: name: Whelan, John T.
name: Anderson, Warren G.
name: Casquette, Martha
name: Diaz, Mario C.
name: Heng, Ik Siong
name: McHugh, Martin
name: Romano, Joseph D.
name: Torres, Charlie W.
name: Trejo, Rosa M.
name: Vecchio, Alberto
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: One of the types of signals for which the LIGO interferometric gravitational wave detectors will search is a stochastic background of gravitational radiation. We review the technique of searching for a background using the optimally-filtered cross-correlation statistic, and describe the state of plans to perform such cross-correlations between the two LIGO interferometers as well as between LIGO and other gravitational-wave detectors, in particular the preparation of software to perform such data analysis.
description: 7 pages, 1 encapsulated PostScript figure, uses IOP class files, submitted to the proceedings of the 4th Amaldi meeting (which will be published in Classical and Quantum Gravity)
Relationships Between Six Circumcircles
Creators: name: Rabinowitz, Stanley
Publisher: name: arXiv
Year: 2019
Subjects: subject: History and Overview (math.HO)
subject: FOS: Mathematics
subject: 51M04

description: If $P$ is a point inside $\triangle ABC$, then the cevians through $P$ divide $\triangle ABC$ into six small triangles. We give theorems about the relationships between the radii of the circumcircles of these triangles. We also state some results about the relationships between the circumcenters of these triangles.
description: pagination is different from that of published paper
MOESM1 of Seasonality modeling of the distribution of Aedes albopictus in China based on climatic and environmental suitability
Creators: name: Xueli Zheng
name: Daibin Zhong
name: Yulan He
name: Guofa Zhou
Publisher: name: figshare
Year: 2019
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Additional file 1. Multilingual abstracts in the five official working languages of the United Nations.
The Evolution and Implications of the U.S. Food Security Act of 1985
Creators: name: Spitze, R. G. F.
name: Spitze, R. G. F.
Publisher: name: Unknown
Year: 1987
Subjects: Agricultural and Food Policy
Production Economics

description: The Food Security Act of 1985 sets the United States (U.S.) policy course for the five years, 1986-1990, in the areas of farm product prices and farmer incomes, agricultural production, food aid, and trade in agricultural products. It is clearly an evolution of past policy, deeply rooted in the institutional processes of participatory policymaking. The Act will have important implications for not only domestic producers, consumers, agribusinesses, and taxpayers, but also product agricultural exporters and importers around the world. Just as it was substantially. affected by the current loss of export markets and the economic crisis in the U.S. agricultural sector, its implementation and impacts will be affected in the future by the unpredictable weather, macroeconomic conditions around the world, and international trading policies. This article examines the development of the policy embodied in the Act and analyzes its primary economic implications. Although most provisions of the U.S. agricultural price and income policy that had evolved over the past half century were continued, important changes were made. The resulting policy closely mirrored the preferences revealed from research concerning farmers and leaders of national agricultural and food interest groups. Primary changes from the previous 1981 Act were: lengthening the duration to five years; substantial lowering of the minimum price support levels; permitting a gradual decline in the minimum target prices; providing for a whole dairy herd buyout program; establishing export enhancement initiatives through credit, promotion, and export payment-in-kind (PIK); and initiating major efforts to increase farmland conservation and withdrawal of fragile lands from production. Likely implications of the new Act include: (1) lower product prices for agricultural producers around the world, and also farmer incomes if there is no income protection from national policies; (2) a similar but a less proportionate impact on consumers; (3) a substantial burden on the U.S. Treasury, and possibly those of the other nations as well, depending upon the type of policies followed; and ( 4) likely intensification in the immediate future of the economic conflicts and negotiations between major agricultural trading nations of the world. Research played a vital role in the development of the U.S. 1985 Act. Given the turbulent, uncertain, and important nature of the agricultural and food sector in the world, research is challenged to provide more and better knowledge for future policymaking
On Why Agriculture Declines with Economic Growth
Creators: name: Anderson, Kym
name: Anderson, Kym
Publisher: name: Unknown
Year: 1987
Subjects: Agribusiness
Production Economics

description: When economic growth is characterised by a slow rise in the demand for food and rapid growth in farm relative to non-farm productivity, it is understandable that agriculture in a closed economy declines in relative terms as that economy develops. But why should agriculture decline in virtually all open growing economies as well, including those able to retain a comparative advantage in agricultural products? A key part of the answer is that the demand for non-tradable goods . tends to be inc.o me elastic, so resources are diverted to their production even m open economies.
Cryptotympana Stal 1861
Creators: name: Lee, Young June
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadidae
Cryptotympana

description: Genus Cryptotympana Stål, 1861
 Cryptotympana Stål, 1861: 613.
 Type species: Tettigonia atrata Fabricius, 1775 (China).
description: Published as part of Lee, Young June, 2009, A checklist of Cicadidae (Insecta: Hemiptera) in Palawan with five new species, pp. 2617-2639 in Journal of Natural History 43 (41 - 42) on page 2620, DOI: 10.1080/00222930903244002, http://zenodo.org/record/5217900
Non-volatile molecular memory elements based on ambipolar nanotube field effect transistors
Creators: name: Radosavljevic, M.
name: Freitag, M.
name: Thadani, K. V.
name: Johnson, A. T.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have fabricated air-stable n-type, ambipolar carbon nanotube field effect transistors (CNFETs), and used them in nanoscale memory cells. N-type transistors are achieved by annealing of nanotubes in hydrogen gas and contacting them by cobalt electrodes. Scanning gate microscopy reveals that the bulk response of these devices is similar to gold-contacted p-CNFETs, confirming that Schottky barrier formation at the contact interface determines accessibility of electron and hole transport regimes. The transfer characteristics and Coulomb Blockade (CB) spectroscopy in ambipolar devices show strongly enhanced gate coupling, most likely due to reduction of defect density at the silicon/silicon-dioxide interface during hydrogen anneal. The CB data in the ``on''-state indicates that these CNFETs are nearly ballistic conductors at high electrostatic doping. Due to their nanoscale capacitance, CNFETs are extremely sensitive to presence of individual charge around the channel. We demonstrate that this property can be harnessed to construct data storage elements that operate at the few-electron level.
description: 6 pages text, 3 figures and 1 table of content graphic; available as NanoLetters ASAP article on the web
Characteristics of women and their male sex partners predict bacterial vaginosis among a prospective cohort of kenyan women with nonoptimal vaginal microbiota
Creators: name: Supriya Mehta
name: W Agingu
name: RK Nordgren
name: SJ Green
name: Dulal Bhaumik
name: RC Bailey
name: F Otieno
Publisher: name: University of Illinois at Chicago
Year: 2021
Subjects: Uncategorized

description: Background Up to 50% of women with nonoptimal vaginal microbial community state type (CST) have bacterial vaginosis (BV). Little is known about what distinguishes women with and without BV diagnosis within nonoptimal CST. We identified features of women and their male sex partners associated with BV among women with nonoptimal vaginal CST. Methods In this prospective study, 252 heterosexual couples were observed at 1, 6, and 12 months after baseline. Microbiomes were characterized in cervicovaginal lavage and penile meatal swabs through high-throughput 16s ribosomal RNA gene amplicon sequencing. Nonoptimal CST was defined as CST-IV. Bacterial vaginosis was defined as a Nugent score of 7 to 10. Generalized estimating equation analysis estimated adjusted odds ratios (aORs) for BV among women with nonoptimal CST. Results At baseline, women with nonoptimal CST were a median age of 22 years, 44% had BV, 16% had HIV, and 66% had herpes simplex virus (HSV) type 2. Male partners were a median age of 27 years, 12% had HIV, 48% had HSV-2, and 55% were circumcised. Within nonoptimal CST, Sneathia sanguinegens, Prevotella species, Prevotella amnii, and Clostridiales, BV-associated bacteria-2 were statistically significantly enriched in observations with BV. In multivariable generalized estimating equation controlling for CST, HIV, and HSV-2, BV was increased among women with CST-IVA (aOR, 1.91; P = 0.087), HIV (aOR, 2.30; P = 0.051), HSV-2 (aOR, 1.75; P = 0.065), and enrichment of male partner penile taxa: Dialister (aOR, 1.16; P = 0.034), Megasphaera (aOR, 1.22; P = 0.001), and Brevibacterium (aOR, 1.13; P = 0.019). These results provide insights into factors differentiating women with BV among those with nonoptimal vaginal CST. Interrupting the sexual exchange of penile and vaginal taxa may be beneficial for preventing pathologic state of vaginal microbiome.
Bianchi type I, Schutz perfect fluid and evolutionary quantum cosmology
Creators: name: Tavakoli, Fatimah
name: Vakili, Babak
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the classical and quantum cosmology of a universe in which the matter content is a perfect fluid and the background geometry is described by a Bianchi type I metric. To write the Hamiltonian of the perfect fluid we use the Schutz representation, in terms of which, after a particular gauge fixing, we are led to an identification of a clock parameter which may play the role of time for the corresponding dynamical system. In view of the classical cosmology, it is shown that the evolution of the universe represents a late time expansion coming from a big-bang singularity. We also consider the issue of quantum cosmology in the framework of the canonical Wheeler-DeWitt (WDW) equation. It is shown that the Schutz formalism leads to the introduction of a momentum that enters linearly into Hamiltonian. This means that the WDW equation takes the form of a Schrödinger equation for the quantum-mechanical description of the model under consideration. We find the eigenfunctions and with the use of them construct the closed form expressions for the wave functions of the universe. By means of the resulting wave function we evaluate the expectation values and investigate the possibility of the avoidance of classical singularities due to quantum effects. We also look at the problem through Bohmian approach of quantum mechanics and while recovering the quantum solutions, we deal with the reason of the singularity avoidance by introducing quantum potential.
description: 14 pages, 2 figures
Spatial Organization of Marketing Facilities in Developing Countries: A Case Study of Oilseeds in Sudan
Creators: name: Baldwin, E. Dean
name: Babiker, Babiker Idris
name: Larson, Donald W.
name: Baldwin, E. Dean
name: Babiker, Babiker Idris
name: Larson, Donald W.
Publisher: name: Unknown
Year: 1987
Subjects: subject: Industrial Organization
subject: Marketing
subject: FOS: Economics and business

description: Little attention has been devoted to the study of spatial organization of marketing facilities in developing countries, even though such studies would be most useful for a wide range of marketing problems. The results of such studies could be valuable to private and public decision-makers in developing countries whose policies and decisions determine the number, size and location of marketing facilities. The spatial organization model developed in this paper for application to the oilseeds industry in Sudan demonstrates the relevance of this research technique for developing country studies of marketing facilities. A linear programming transshipment model is utilized to determine the optimal spatial organization of oilseeds in Sudan when the costs of oilseed assembly, processing and distribution of oil and cake to final destinations are considered simultaneously. The optimal spatial organization of oilseed processing plants was determined for six alternative solutions. Model results indicate that the optimal organization of processing plants would be obtained with fewer and larger plants, resulting in lower transportation costs.
Parton coalescence and antiproton/pion anomaly at RHIC
Creators: name: Greco, V.
name: Ko, C. M.
name: Lévai, P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Coalescence of minijet partons with the partons from the quark-gluon plasma formed in relativistic heavy ion collisions is suggested as the mechanism for production of hadrons with intermediate transverse momentum. The resulting enhanced antiproton and pion yields at intermediate transverse momentum gives a plausible explanation for the observed large antiproton to pion ratio. With further increasing momentum, the ratio is predicted to decrease and approach the small value given by independent fragmentations of minijet partons after their energy loss in the quark-gluon plasma.
description: 4 pages, 3 figures, version to appear in Phys. Rev. Lett
MOESM2 of Seasonality modeling of the distribution of Aedes albopictus in China based on climatic and environmental suitability
Creators: name: Xueli Zheng
name: Daibin Zhong
name: Yulan He
name: Guofa Zhou
Publisher: name: figshare
Year: 2019
Subjects: subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Additional file 2: Table S1. Reference list for Aedes albopictus surveillance records.
On Signatures of Short Distance Physics in the Cosmic Microwave Background
Creators: name: Brandenberger, Robert H.
name: Martin, Jerome
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Following a self-contained review of the basics of the theory of cosmological perturbations, we discuss why the conclusions reached in the recent paper by Kaloper et al are too pessimistic estimates of the amplitude of possible imprints of trans-Planckian (string) physics on the spectrum of cosmic microwave anisotropies in an inflationary Universe. It is shown that the likely origin of large trans-Planckian effects on late time cosmological fluctuations comes from nonadiabatic evolution of the state of fluctuations while the wavelength is smaller than the Planck (string) scale, resulting in an excited state at the time that the wavelength crosses the Hubble radius during inflation.
description: 11 pages, 4 figures
Pseudogap in the microwave response of YBa_2Cu_3O_{7-x}
Creators: name: Trunin, M. R.
name: Nefyodov, Yu. A.
name: Shevchun, A. F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The in-plane and out-of-plane surface impedance and microwave conductivity components of one and the same YBa_2Cu_3O_{7-x} (0.07\le x\le 0.47) single crystal are determined in the wide ranges of temperature T and carrier concentration p in CuO_2 planes. The following features of the superfluid density n_s(T,p)\proptoλ_{ab}^{-2}(T,p) are observed at T
description: 7 pages, 9 figures, presented at EUCAS 2003 (September 14-18), submitted to SUST
Combinatorial Random Knots
Creators: name: Ducharme, Andrew
name: Peters, Emily
Publisher: name: arXiv
Year: 2019
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M25

description: We explore free knot diagrams, which are projections of knots into the plane which don't record over/under data at crossings. We consider the combinatorial question of which free knot diagrams give which knots and with what probability. Every free knot diagram is proven to produce trefoil knots, and certain simple families of free knots are completely worked out. We make some conjectures (supported by computer-generated data) about bounds on the probability of a knot arising from a fixed free diagram being the unknot, or being the trefoil.
description: Added information about connect sums
D6.2 - Preliminary conclusions about Federated Learning applied to clinical data
Creators: name: Álvarez, Federico
name: Zazo, Santiago
name: Parras, Juan
name: Almodóvar, Alejandro
name: Alonso, Patricia
name: Giampieri, Enrico
name: Castellani, Gastone
name: Sani, Lorenzo
name: Rollo, Cesare
name: Sanavia, Tiziana
name: Krogh, Anders
name: Prada-Luengo, Íñigo
name: Kanterakis, Alexandros
name: Sfakianakis, Stelios
name: Cremonesi, Francesco
Publisher: name: Zenodo
Year: 2021

description: This report comprises the first contributions from different partners on Federated Learning (FL). After a preliminary introductory section where the fundamental procedures and limitations are described, we detail the well-known mathematical foundation of Federated Learning for convex problems. In this case, we present a key algorithm, Alternating Direction Multipliers Method (ADMM), which is able to implement in a distributed way some fundamental problems such as regression (Ridge and LASSO) and classification (Logistic Regression and Support Vector Machines (SVM)). This procedure shares the fundamental approach of FL, which consists of performing some local processing, sharing some intermediate information and updating the local information with some global innovation. In a second step we introduce the extension of this approach to non-convex problems using Bayesian Neural Networks (BNN) where the update is based on the cooperative construction of the posterior of weights from different architectures. Several sections follow where different partners provide different contributions describing our first initiatives on the topic. Some preliminary code from all partners has been uploaded to a common repository to start creating a pool of methods and tools to foster incoming synergies.
A Risk Responsive Acreage Response Function for Millet in Niger
Creators: name: Adesina, Akinwumi A.
name: Brorsen, B. Wade
name: Adesina, Akinwumi A.
name: Brorsen, B. Wade
Publisher: name: Unknown
Year: 1987
Subjects: Production Economics
Risk and Uncertainty

description: In this paper the impact of price risk on millet production in Niger is investigated. The hypothesis that farmers respond to output price risk is tested. The results indicate that millet acreage planted decreased when millet price risk increased or when price risk of the competing crop decreased and therefore farmers do respond to changes in risk.
MOESM3 of Association between smoking cessation and post-hospitalization healthcare costs: a matched cohort analysis
Creators: name: Nolan, Margaret
name: Borah, Bijan
name: Moriarty, James
name: Warner, David
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 60506 Virology
subject: FOS: Biological sciences
subject: Computational Biology

description: Additional file 3. Mean and median costs of index hospitalization and 6-month follow-up costs by indication for subjects who continued to smoke versus those who were abstinent at 6-month follow-up, according to diagnostic category.
Black Hole and Cosmological Particle Production in Schwarzschild de Sitter
Creators: name: Qiu, Yue
name: Traschen, Jennie
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We compute the spectra and total fluxes of quantum mechanically produced particles crossing the black hole and cosmological horizons in Schwarzschild de Sitter (SdS). Particle states are defined with respect to well-behaved, Kruskal coordinates near the horizons, and as a consequence we find that these spectra are generally non-thermal. The non-thermal Bogoliubov coefficient for a vacuum fluctuation near the black hole horizon to produce a particle that crosses the cosmological horizon is shown to equal to the convolution of two thermal coefficients, one at the cosmological temperature and one at the black hole temperature, weighted by the transmission coefficient for wave propagation in static SdS coordinates. In this sense virtual thermal propagation underlies the production process. This representation leads to the useful result that the geometric optics approximation is reliable when used together with a low frequency cut-off determined by the transmission coefficient. The large black hole limit is a quasi-equilibrium situation as both temperatures approach the common value of zero, the particle spectra become equal, and both emissions are exponentially suppressed. Small black holes radiate as thermal bodies and absorb a tiny flux of cosmological particles. The behavior of the quantum fluctuations on the horizons is seen to be consistent with the Schottky anomaly behavior of classical gravitational fluctuations.
description: 47 pages; v2 - references added, typos fixed
Labour-Related Structural Trends in South African Maize Production
Creators: name: Zyl, J. Van
name: Vink, Nick
name: Fenyes, T. I.
name: Zyl, J. Van
name: Vink, Nick
name: Fenyes, T. I.
Publisher: name: Unknown
Year: 1987
Subjects: Crop Production/Industries
Labor and Human Capital
Production Economics

description: The substitution of capital goods, including new technology, for land and labour has played an important role and has influenced the structure of Sout African agriculture. Farm labour-related trends in the summer rainfall grain-producing area of South Africa are considered. The amount of labour used, the remuneration of labour, the substitution of capital for labour and productivity trends are analyzed. Growth rates were obtained by fitting exponential functions with time as independent variable. The decline in the number of farm employees per 1000 hectares under cultivation since 1970 probably resulted from mechanization and thus capital- labour substitution in maize production, especially in harvesting. Tax concessions on new capital improvements, the subsidization of agriculture in general and the increasing rate of urbanization contributed to this trend. The scarcity of capital relative to unskilled labour, which has been reinforced by policy measures favouring capital intensity (capital formation has increased by 4.0% per annum between 1950 and 1980, compared with an increase of 0. 71% per annum in the number of farm employees in the same period); this implies that corrective policy changes are required to improve the present distorted situation. This will enable the commercial agricultural sector of South Africa to play a more meaningful role in the socio-economic development of the whole subcontinent.
Pascal conductance series in ballistic one-dimensional LaAlO$_3$/SrTiO$_3$ channels
Creators: name: Briggeman, Megan
name: Tomczyk, Michelle
name: Tian, Binbin
name: Lee, Hyungwoo
name: Lee, Jung-Woo
name: He, Yuchi
name: Tylan-Tyler, Anthony
name: Huang, Mengchen
name: Eom, Chang-Beom
name: Pekker, David
name: Mong, Roger S. K.
name: Irvin, Patrick
name: Levy, Jeremy
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The ability to create and investigate composite fermionic phases opens new avenues for the investigation of strongly correlated quantum matter. We report the experimental observation of a series of quantized conductance steps within strongly interacting electron waveguides formed at the LaAlO$_3$/SrTiO$_3$ interface. The waveguide conductance follows a characteristic sequence within Pascal's triangle: $(1, 3, 6, 10, 15, ...)\cdot e^2/h$, where $e$ is the electron charge and $h$ is the Planck constant. The robustness of these steps with respect to magnetic field and gate voltage indicate the formation of a new family of degenerate quantum liquids formed from bound states of $n = 2, 3, 4, ...$ electrons. These experiments could provide solid-state analogues for a wide range of composite fermionic phases ranging from neutron stars to solid-state materials to quark-gluon plasmas.
Puranoides Moulton 1917
Creators: name: Lee, Young June
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadidae
Puranoides

description: Genus Puranoides Moulton, 1917
 Puranoides Moulton, 1917: 1.
 Type species: Puranoides klossi Moulton, 1917 (Sumatra).
description: Published as part of Lee, Young June, 2009, A checklist of Cicadidae (Insecta: Hemiptera) in Palawan with five new species, pp. 2617-2639 in Journal of Natural History 43 (41 - 42) on page 2621, DOI: 10.1080/00222930903244002, http://zenodo.org/record/5217900
Identifying Client Targets for Improved Mobilization and Uptake of Integrated Family Planning and Reproductive Health in Environmental Programs in Kenya
Creators: name: Edmon Obat
name: Schaefer, Krista
name: Mumma Opiyo
name: Otieno, George
name: Windindi, Henrietta
name: Omuodo, Derick
name: Supriya Mehta
Publisher: name: University of Illinois at Chicago
Year: 2021
Subjects: Uncategorized

description: Background: We conducted a population health environment program in Lake Victoria Basin (LVB) and assessed incorporation and integration of family planning with environmental conservation.Methods: Routine program data were collected from clients by community-based distributors from four environmental community-based organizations. Multivariable regressions identified factors associated with distribution of: (1) oral contraceptive pills to women, (2) male condoms, and (3) integrated family planning and environmental messaging.Results: April 2015 through May 2016, 10,239 client encounters were completed, with 56% made by men. We distributed contraceptive pills at 28% of client encounters. Multivariable modeling showed this was more likely for women <40 years old (p < 0.001) and was less likely for women attending household (30%) and group sessions (46%) compared to individual sessions (p < 0.001). Male condoms were distributed at 73% of client encounters; (p < 0.01, all) women were half as likely to receive condoms than men, and single and widowed clients were more likely than married clients to receive condoms. Integrated messaging occurred at 89% of client encounters, and was 85% more likely for women, increased with client age, and was less likely for single and widowed persons. Exit interviews with 87 clients (42% male, 58% female) confirmed program data by report of commodities received: 27% contraceptive pills, 75% male condoms, 91% integrated messaging.Conclusions: Partnership with environmental conservation organizations effectively expanded family planning and reproductive health to non-traditional audiences and men among rural communities surrounding LVB-Kenya. Specific client subgroups can be targeted for improved mobilization and uptake of services.
Effects of the Energy Crisis on French Agriculture between 1974 and 1984
Creators: name: Bonny, Sylvie
name: Bonny, Sylvie
Publisher: name: Unknown
Year: 1987
Subjects: Crop Production/Industries
Production Economics

description: The effects that the energy crisis has had on the relatively energy-intensive French agriculture are discussed in this paper for the period 1974-1984. The economic significance of energy in agriculture and the economic effects of higher energy prices are examined. An analysis is made of developments in the use of different sources of energy in the agricultural sector: savings in petroleum products used for heat production, diversification of fuel sources for heating, growing consumption of wood for space heating, and increased use of electricity. The effects of the energy crisis on France's agricultural economy, particularly with regard to farm income, the choice of sites for agricultural production, and trade in agrofood products are discussed. Finally, a detailed breakdown is given of the changes in the use of production factors, caused by the increase in energy prices. Agriculture appears to have become more economical or more efficient.
Performance of a 1200m long suspended Fabry-Perot cavity
Creators: name: Freise, A.
name: Casey, M. M.
name: Gossler, S.
name: Grote, H.
name: Heinzel, G.
name: Lueck, H.
name: Robertson, D. I.
name: Strain, K. A.
name: Ward, H.
name: Willke, B.
name: Hough, J.
name: Danzmann, K.
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using one arm of the Michelson interferometer and the power recycling mirror of the interferometric gravitational wave detector GEO600, we created a Fabry-Perot cavity with a length of 1200 m. The main purpose of this experiment was to gather first experience with the main optics, its suspensions and the corresponding control systems. The residual displacement of a main mirror is about 150 nm rms. By stabilising the length of the 1200 m long cavity to the pre-stabilised laser beam we achieved an error point frequency noise of 0.1 mHz/sqrt(Hz) at 100 Hz Fourier frequency. In addition we demonstrated the reliable performance of all included subsystems by several 10-hour-periods of continuous stable operation. Thus the full frequency stabilisation scheme for GEO600 was successfully tested.
description: Amaldi 4 (Perth 2001) conference proceedings, 10 pages, 8 figures
Wheat and Maize Price Policies in Hungary: Tradeoffs between Foreign Exchange and Government Revenue
Creators: name: Braverman, Avishay
name: Hammer, Jeffrey S.
name: Morduch, Jonathan J.
name: Braverman, Avishay
name: Hammer, Jeffrey S.
name: Morduch, Jonathan J.
Publisher: name: Unknown
Year: 1987
Subjects: Agricultural and Food Policy
Crop Production/Industries
Demand and Price Analysis

description: This paper reports on a methodology designed to examine the effects of selected agricultural policies in Hungary. The purpose of the paper is twofold. The first is to explain the methodology, dubbed multi-market analysis in previous work, which is implemented on personal computers to support discussions on policy reforms. The second is to examine wheat and maize policies in Hungary. While the model is constructed to focus on these policies, it will also be possible to outline ways to use the model to address other problems.
Adoption of soil conservation: the case of the Philippine uplands
Creators: name: Lapar, Ma. Lucila A.
name: Pandey, Sushil
name: Lapar, Ma. Lucila A.
name: Pandey, Sushil
Publisher: name: Unknown
Year: 1999
Subjects: subject: Crop Production/Industries
subject: Production Economics
subject: Soil conservation
subject: Uplands
subject: Contour hedgerow technology

description: Soil degradation in the sloping uplands of Asia is a serious problem that threatens the sustainability of agriculture. Although several soil conservation technologies have been developed and promoted, their adoption has not been widespread. A micro-economic analysis of adoption of contour hedgerows by upland farmers in the Philippines is conducted to identify the factors that determine adoption. The empirical results show that adoption depends on several farm and farmer characteristics and the relative importance of these factors differs across sites. The high cost of establishment, maintenance and the loss of land to hedgerows are considered to be the major constraints to adoption by non-adopters. The economics of the contour hedgerow system is found to improve substantially if crop intensification or cash cropping is possible. In addition to the need to develop a range of cost-effective technologies, the study indicates that in the more marginal environments, on-site benefits alone may not be sufficient to justify investment in soil conservation. ©1999 Elsevier Science B.V. All rights reserved.
FACT -- Multi-wavelength analysis of more than 30 flares of Mrk 421
Creators: name: Sliusar, Vitalii
name: Arbet-Engels, Axel
name: Baack, Dominik
name: Balbo, Matteo
name: Biland, Adrian
name: Blank, Michael
name: Bretz, Tomas
name: Bruegge, Kai
name: Bulinski, Michael
name: Buss, Jens
name: Doerr, Manuel
name: Dorner, Daniela
name: Elsaesser, Dominik
name: Hildebrand, Dorothee
name: Mannheim, Karl
name: mueller, Sebastian
name: Neise, Dominik
name: Noethe, Maximilian
name: Paravac, Aleksander
name: Rhode, Wolfgang
name: Schleicher, Bernd
name: Sedlaczek, Kevin
name: Shukla, Amit
name: Walter, Roland
name: von Willert, Elan
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Mrk 421 is a high-synchrotron-peaked blazar featuring bright and persistent GeV and TeV emission. We use multi-wavelength light curves of Mrk 421 spanning 5.5 years with FACT (TeV) and Fermi LAT (GeV) in the gamma rays, Swift BAT, Swift XRT and MAXI in the X-rays, together with optical and radio data and investigate the physical processes driving the emission and variability. Observations by FACT are continuous and not triggered, so the source was found in a wide range of flux states and more than 30 flares were identified from X-rays to TeV. The light curves in TeV and X-rays feature very similar flares with rise and decay times of a few days and zero lag, characteristic for electron processes. At least two parameters per flare, the amplitude and the cut-off energy, are required to explain the observed variability. In addition, the GeV light curve leads and is strongly correlated with the optical and radio light curves as expected from SSC emitting shock propagating in a conical jet.
description: 9 pages, 3 figures, 1 table. 36th International Cosmic Ray Conference (ICRC2019), July 24th-August 1st, 2019. Madison, WI, U.S.A
Externalities in the agricultural export sector and economic growth: a developing country perspective
Creators: name: Pineres, Sheila Amin Gutierrez De
name: Pineres, Sheila Amin Gutierrez De
Publisher: name: Unknown
Year: 1999
Subjects: subject: Production Economics
subject: Research and Development/Tech Change/Emerging Technologies
subject: Flowers
subject: Export
subject: Flower industry
subject: Colombia
subject: Agricultural led development

description: For years economists have ignored the diversity in agriculture and its potential to increase long run growth rates by enhancing a country's knowledge base. Non-traditional agriculture requires significant investments in the infrastructure and knowledge; and therefore, has the potential to increase long run growth rates. Policy makers in developing countries have tended to enact macroeconomic policies designed to enhance the manufacturing sector at the expense of the agricultural sector. A theoretical model is developed to explain the dynamics between two non-traditional export sectors and the long run economic growth of the country. The model illustrates that growth in highly perishable agricultural exports, not domestic production of manufactured goods, can potentially lead to higher long run growth rates. The model is applied to the fruit and flower industries in Colombia to bring forth an example with real world relevance. ©1999 Elsevier Science B.V. All rights reserved.