cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 1 of Implementation and quality assessment of a clinical orthopaedic registry in a public hospital department
Creators: name: Binglong Lee
name: Ebrahimi, Milad
name: Ektas, Nalan
name: Ting, Chee Han
name: MacDougal Cowley
name: Scholes, Corey
name: Bell, Christopher
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Science Policy
subject: Hematology

description: Additional file 1: Supplementary file 1: Registry cohorts and inclusion/exclusion criteria. Defines cohorts for pilot registry and contains detailed list of inclusion and exclusion criteria for each cohort.
Measuring the Social Status of Education Programmes: Applying a New Measurement to Dual Vocational Education and Training in Switzerland
Creators: name: Bolli, Thomas
name: Rageth, Ladina
Publisher: name: ETH Zurich
Year: 2016
Subjects: PERSONEN UND PERSÖNLICHE MERKMALE
BERUFSBILDUNGSWESEN + BERUFSAUSBILDUNG (ERZIEHUNG)
LEHRLINGSAUSBILDUNG + BERUFSLEHRE
Vocational Education and Training
Dual VET
APPRENTICESHIPS (LABOUR)
VOCATIONAL TRAINING + VOCATIONAL EDUCATION (EDUCATION)
Social Status
PERSONS AND PERSONAL CHARACTERISTICS
Apprenticeship
info:eu-repo/classification/ddc/330
Economics

description: KOF Working Papers, 403
Precision ground-state energy calculation for the water molecule on a superconducting quantum processor
Creators: name: Jones, Michael A.
name: Vallury, Harish J.
name: Hollenberg, Lloyd C. L.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The accurate computation of properties of large molecular systems is classically infeasible and is one of the applications in which it is hoped that quantum computers will demonstrate an advantage over classical devices. However, due to the limitations of present-day quantum hardware, variational-hybrid algorithms introduced to tackle these problems struggle to meet the accuracy and precision requirements of chemical applications. Here, we apply the Quantum Computed Moments (QCM) approach combined with a variety of noise-mitigation techniques to an 8 qubit/spin-orbital representation of the water molecule (H$_2$O). A noise-stable improvement on the variational result for a 4-excitation trial-state (circuit depth 25, 22 CNOTs) was obtained, with the ground-state energy computed to be within $1.4\pm1.2$ mHa of exact diagonalisation in the 14 spin-orbital basis. Thus, the QCM approach, despite an increased number of measurements and noisy quantum hardware (CNOT error rates c.1% corresponding to expected error rates on the trial-state circuit of order 20%), is able to determine the ground-state energy of a non-trivial molecular system at the required accuracy (c.0.1%). To the best of our knowledge, these results are the largest calculations performed on a physical quantum computer to date in terms of encoding individual spin-orbitals producing chemically relevant accuracy, and a promising indicator of how such hybrid approaches might scale to problems of interest in the low-error/fault-tolerant regimes as quantum computers develop.
description: 20 pages, 8 figures (incl. SI)
Neutrix Calculus and Finite Quantum Field Theory
Creators: name: Ng, Y. Jack
name: van Dam, H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In general, quantum field theories (QFT) require regularizations and infinite renormalizations due to ultraviolet divergences in their loop calculations. Furthermore, perturbation series in theories like QED are not convergent series, but are asymptotic series. We apply neutrix calculus, developed in connection with asymptotic series and divergent integrals, to QFT,obtaining finite renormalizations. While none of the physically measurable results in renormalizable QFT is changed, quantum gravity is rendered more manageable in the neutrix framework.
description: 10 pages; LaTeX; version to appear in J. Phys. A: Math. Gen. as a Letter to the Editor
PRODUCCIÓN Y COMERCIALIZACIÓN DE Psidium sartorianum O. Berg Nied EN EL SUR DEL ESTADO DE MÉXICO
Creators: name: Rebollar Rebollar, Samuel
name: Rebollar, Samuel
name: Arriaga, Martín Rubí
name: Razo, Felipe De Jesús González
name: Rebollar Rebollar, Samuel
name: Rebollar, Samuel
name: Arriaga, Martín Rubí
name: Razo, Felipe De Jesús González
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: myrtle
subject: channels
subject: agents
subject: costs
subject: revenues
subject: arrayán
subject: canales
subject: agentes
subject: costos
subject: ingresos

description: This paper examines the various steps in the commercialization process of the myrtle (Psidium sartorianum O. Berg Nied) in the southern State of Mexico and the different actors involved, from the product departure from the farm to its arrival at final consumer. Also, it is calculated the resulting marketing margins during the different stages, which are used as indicators of profitability. The studio refers to the year 2011, when 20 myrtle trees were selected by purposive sampling, because of their physiological maturity and production, they were chosen to market their fruit in the region; in this regard, the actors in this process were surveyed: 10 farmers, 8 intermediate, three ice cream vendors, two manufacturers of candy, five vendors of tamales and five fresh water outlets. The object of the survey was to gather information about the production process, participating agents, marketing costs and prices to then determine the margins and channels. The results showed that at current prices, the largest margin of marketing as well as the highest benefit cost recorded in the marketing channel: producer-consumer.....En el presente trabajo se analizan las distintas etapas que conforman el proceso de comercialización del arrayán (Psidium sartorianum O. Berg Nied) en el sur del Estado de México y diferentes agentes participantes, desde la salida del producto de la explotación hasta su llegada al consumidor final. Asimismo, se calculan los márgenes de comercialización resultantes, los cuales se emplearon como indicadores de rentabilidad. El estudio se refirió a 2011, durante el cual se seleccionaron, por muestreo intencional, 20 árboles de arrayán, los cuales, por su madurez fisiológica y productiva fueron objeto de la comercialización de sus frutos en la región; en este sentido, se encuestó a los agentes participantes en dicho proceso: 10 productores, 8 intermediarios, tres vendedores de paletas de hielo, dos fabricantes de dulces, cinco vendedores de tamales y cinco expendios de aguas frescas. La intención de las encuestas, consistió en recabar información referente al proceso de producción, agentes participantes, costos de comercialización y precios, para posteriormente determinar canales y márgenes. Los resultados mostraron que a precios corrientes, el mayor margen de comercialización, así como la más alta relación beneficio costo, se registraron en el canal de comercialización: productor-consumidor final.
Conditions driving chemical freeze-out
Creators: name: Tawfik, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose the entropy density as the thermodynamic condition driving best the chemical freeze-out in heavy-ion collisions. Taking its value from lattice calculations at zero chemical potential, we find that it is excellent in reproducing the experimentally estimated freeze-out parameters. The two characteristic endpoints in the freeze-out diagram are reproduced as well.
description: 8 pages, 5 eps figures
Resolving the Ambiguity: A Meta-Analysis of the Effect of Employment Protection on Employment and Unemployment
Creators: name: Bolli-Kemper, Johanna Mirka
Publisher: name: ETH Zurich
Year: 2016
Subjects: UNEMPLOYMENT
BESCHÄFTIGUNGSPOLITIK
EMPLOYMENT POLICY
ARBEITSLOSIGKEIT
info:eu-repo/classification/ddc/330
Economics

description: KOF Working Papers, 405
Learning Combinatorial Optimization on Graphs: A Survey with Applications to Networking
Creators: name: Vesselinova, Natalia
name: Steinert, Rebecca
name: Perez-Ramirez, Daniel F.
name: Boman, Magnus
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: A.1
subject: 68-01, 90-01

description: Existing approaches to solving combinatorial optimization problems on graphs suffer from the need to engineer each problem algorithmically, with practical problems recurring in many instances. The practical side of theoretical computer science, such as computational complexity, then needs to be addressed. Relevant developments in machine learning research on graphs are surveyed for this purpose. We organize and compare the structures involved with learning to solve combinatorial optimization problems, with a special eye on the telecommunications domain and its continuous development of live and research networks.
description: 29 pages, 1 figure, open access journal publication
Space Time Defects as a Source of Curvature and Torsion
Creators: name: Tartaglia, Angelo
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Space time is described as a continuum four-dimensional medium similar to ordinary elastic continua. Exploiting the analogy internal stress states are considered. The internal ''stress'' is originated by the presence of defects. The defects are described according to the typical Volterra process. The case of a point defect in an otherwise isotropic four-dimensional medium is discussed showing that the resulting metric tensor corresponds to an expanding (or contracting) universe filled up with a non-zero energy-momentum density.
description: Presentation at the Sixth Friedman seminar in Cargese 28/6-3/7/2004. Submitted for the proceedings of the seminar to appear in the International Journal of Modern Physics A
Long-lived quasinormal modes and overtones' behavior of the holonomy corrected black holes
Creators: name: Bolokhov, S. V.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recently massless test scalar field perturbations of the holonomy corrected black holes [Z. Moreira et. al. Phys. Rev. D 107 (2023) 10, 104016] were studied in order to estimate quantum corrections to the quasinormal spectrum of a black hole. Here we study both the fundamental mode and overtones of scalar, electromagnetic and Dirac fields with the help of the Leaver method and higher order WKB formula with Padé approximants. We observe that the overtones depend on the geometry near the event horizon, while the fundamental mode is localized near the peak of the potential barrier, what agrees with previous studies. We showed that unlike a massless field, the massive one possesses arbitrarily long lived modes. We also obtain the analytical eikonal formula for quasinormal modes and its extension beyond eikonal approximation as a series in powers of $1/\ell$, where $\ell$ is the multipole number.
description: 11 pages, 3 figures
researchpaper.pdf
Creators: name: Salih, Nazar
Publisher: name: figshare
Year: 2020
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences
subject: 80106 Image Processing
subject: 80107 Natural Language Processing

description: Precise diagnosis for a wide range of diseases infecting the human eye is a commitment. Therefore, developing new, smart algorithms is necessary to enhance doctors’ diagnostic decisions. The recently invented Pentacam® is a measurement system that introduces topographic maps for the cornea, measures changes upon it, and helps doctors to make a precise diagnosis. This study extracts features from corneal topographic maps to improve the Pentacam® readings and further support precise diagnosing by using deep learning techniques, with an analytical view of the extracted features. A 16-layer convolutional neural network (CNN) was trained using the VGG-16 network to extract powerful features from corneal topographic maps. A sample of 732 human eyes were selected from enlarged topographic images from both genders (414 females and 318 males), divided into two groups: normal and abnormal. The patients’ ages ranged from 12 to 76 years. The procedure of the study consisted of three major steps: (1) classification of the extracted features according to the refractive map type (where the estimated accuracy was 96.6%); (2) prediction of the clinical state (normal or abnormal) per individual map (where the estimated accuracy was 88.8%, 98.9%, 94.8%, and 94.5% for the sagittal map, the elevation front map, the elevation back map, and the corneal thickness map, respectively); and (3) comparison of the predicted results and clinical decision-making. The agreement between them reaches about 94.72%, which indicated the power and usefulness of the proposed algorithm.
title: Construction of a corrosion-resistant 15 L-pilot-bioreactor for the cultivation of extremely halophilic microorganisms
Creators: name: Deringer, Pascal
Publisher: name: TU Wien
Year: 2016
Subjects: subject: Halophiles
subject: Airlift-Bioreactor
subject: Cell Retention
subject: Industrial Waste Water Treatment
subject: Waste-to-Value
subject: Upscaling

description: Halophiles are microorganisms that can thrive in hostile, hypersaline environments, for example in salt lakes. Due to adaptation to their extreme living conditions they have developed unique features that offer a huge biotechnological potential: halophiles can grow on an exceptionally large variety of substrates and allow cost-effective, non-sterile continuous production of bioproducts. Potential biotechnological applications of halophilic organisms are for example industrial wastewater treatment and the production of carotenoids, biopolymers or the unique photoactive biomolecule bacteriorhodopsin. However, only a few halophilic organisms are currently commercially used because efficient and economical biotechnological processes for their cultivation on industrial scale have not been developed yet. A process for biotechnological treatment of industrial waste water by halophiles has been developed by the department of bioprocess engineering at Vienna University of Technology in recent years in a 1 L lab-scale bioreactor. To make this process available for the industry, it has to be scaled up and its simplicity, robustness as well as efficiency have to be demonstrated. For this reason, a worldwide unique pilot plant on 15 L-scale for the cultivation of halophiles with high productivity is constructed that is customized for the special requirements of these microorganisms. To reduce shear stress to the cells, an airlift bioreactor is used. Due to the high corrosiveness of the medium, the corrosion-resistant nickel-based alloy Hastelloy C-22 and plastic components are utilized. The bioreactor can be operated at increased pressures to enhance the solubility of oxygen in the medium. Moreover, a cell retention loop is attached to the vessel to increase the productivity of the slow growing halophiles. The process can be operated in batch as well as in continuous mode and allows online monitoring of the main process parameters. The targets of this master thesis are the construction of the novel bioreactor setup and to make it operational for subsequent research on the biotechnological application of halophiles. The thesis includes the design, specification, installation and testing of the pilot plant as well as documentation. The main challenge is the selection and especially the combination of equipment that is feasible for the highly corrosive medium as well as pressure-resistant. After implementation of the pilot plant, test fermentations with a halophilic strain are performed to demonstrate the operability of the System.
Data-driven rules for multidimensional reflection problems
Creators: name: Christensen, Sören
name: Thomsen, Asbjørn Holk
name: Trottner, Lukas
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optimization and Control (math.OC)
subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 93E35, 68T05, 49Q10, 60J60, 62M05

description: Over the recent past data-driven algorithms for solving stochastic optimal control problems in face of model uncertainty have become an increasingly active area of research. However, for singular controls and underlying diffusion dynamics the analysis has so far been restricted to the scalar case. In this paper we fill this gap by studying a multivariate singular control problem for reversible diffusions with controls of reflection type. Our contributions are threefold. We first explicitly determine the long-run average costs as a domain-dependent functional, showing that the control problem can be equivalently characterized as a shape optimization problem. For given diffusion dynamics, assuming the optimal domain to be strongly star-shaped, we then propose a gradient descent algorithm based on polytope approximations to numerically determine a cost-minimizing domain. Finally, we investigate data-driven solutions when the diffusion dynamics are unknown to the controller. Using techniques from nonparametric statistics for stochastic processes, we construct an optimal domain estimator, whose static regret is bounded by the minimax optimal estimation rate of the unreflected process' invariant density. In the most challenging situation, when the dynamics must be learned simultaneously to controlling the process, we develop an episodic learning algorithm to overcome the emerging exploration-exploitation dilemma and show that given the static regret as a baseline, the loss in its sublinear regret per time unit is of natural order compared to the one-dimensional case.
description: 29 pages, 3 figures
Incentive Effects of Fiscal Rules on the Finance Minister’s Behaviour: Evidence from Revenue Projections in Swiss Cantons
Creators: name: Chatagny, Florian
Publisher: name: ETH Zurich
Year: 2013
Subjects: SCHWEIZ (MITTELEUROPA). SCHWEIZERISCHE EIDGENOSSENSCHAFT
SWITZERLAND (CENTRAL EUROPE). SWISS CONFEDERATION
KONJUNKTURPOLITIK
STABILIZATION POLICY
TAXES (PUBLIC FINANCE)
TAX ASSESSMENT + TAX DETERMINATION
STEUERN (ÖFFENTLICHE FINANZEN)
STEUERVERANLAGUNG + STEUEREINSCHÄTZUNG
info:eu-repo/classification/ddc/330
Economics

description: KOF Working Papers, 347
Superconductivity and spin density wave in AA stacked bilayer graphene
Creators: name: Sboychakov, A. O.
name: Rakhmanov, A. L.
name: Rozhkov, A. V.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: This work theoretically analyzes electronic ordering in AA-stacked bilayer graphene and the role of the Coulomb interaction in these many-body phenomena. Using the random phase approximation to account for screening, we find intra-layer effective interactions to be much stronger than inter-layer interactions; under certain circumstances, the latter may also become attractive. At zero doping, the Coulomb repulsion stabilizes the spin-density wave state, with a N{é}el temperature in the tens of Kelvin. While dominant in the undoped system, the spin-density wave is destroyed by sufficiently strong doping and a superconducting phase emerges. We find that the effective Coulomb inter-layer interaction can give rise to superconductivity. However, the corresponding critical temperature is negligibly small, and phonon-mediated attraction must be introduced to observe it. Strong intra-layer repulsion suppresses order parameters that couple two intra-layer electrons. We point out a possible superconducting state with finite Cooper pair momentum.
description: 16 pages, 6 figures, published version
title: The potential of lithium-ion batteries and vanadium redox flow batteries as distributed stationary energy storage systems for photovoltaics
Creators: name: Laaber, Daniel L.
Publisher: name: TU Wien
Year: 2016
Subjects: subject: Renewable Energy
subject: Energy Storage Systems
subject: Secondary Batteries
subject: Lithium-ion Batteries
subject: Vanadium Redox Flow Batteries
subject: Self-consumption Rate
subject: Sustainability

description: The past decade has seen large-scale penetration of distributed renewable energy. Electrochemical energy storage systems are proving their potential to enable the transition from conventional energy generation to more sustainable forms. This thesis will focus on increasing the rate of self-consumption of on-site generated electricity by the application of electrochemical energy storage systems. In the current study, Lithium-ion Batteries and (Vanadium) Redox Flow Batteries have been identified as technologies with the greatest potential at the capacity range of 40-70kWh. In combination with photovoltaics, both systems have reached grid parity level, with an estimated payback period of 6.3 years in the region of Bavaria, Germany. The results of this study suggest that especially SMEs in agriculture may benefit from such systems and could decrease their annual electricity bill significantly. Further work needs to be done in order to assess the potential of distributed storage systems in urban areas and businesses with unfavorable load curves for wider usage of photovoltaics.
Quasi-local rotating black holes in higher dimension: geometry
Creators: name: Lewandowski, Jerzy
name: Pawlowski, Tomasz
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: With a help of a generalized Raychaudhuri equation non-expanding null surfaces are studied in arbitrarily dimensional case. The definition and basic properties of non-expanding and isolated horizons known in the literature in the 4 and 3 dimensional cases are generalized. A local description of horizon's geometry is provided. The Zeroth Law of black hole thermodynamics is derived. The constraints have a similar structure to that of the 4 dimensional spacetime case. The geometry of a vacuum isolated horizon is determined by the induced metric and the rotation 1-form potential, local generalizations of the area and the angular momentum typically used in the stationary black hole solutions case.
description: 32 pages, RevTex4
RENTABILIDAD DE JATROPHA CURCAS EN ASOCIACIÓN CON CULTIVOS Y MONOCULTIVO EN TIERRAS DE TEMPORAL EN YUCATÁN
Creators: name: García, Armando Rucoba
name: Gil, Alfonso Munguía
name: García, Armando Rucoba
name: Gil, Alfonso Munguía
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: Profitability
subject: Jatropha curcas
subject: intercrops
subject: monocrop
subject: Yucatan
subject: Rentabilidad
subject: asociación de cultivos
subject: monocultivo
subject: Yucatán

description: El presente trabajo analiza las perspectivas de rentabilidad para dos sistemas de producción de Jatropha curcas en temporal para el tercer y cuarto año de establecimiento, en monocultivo y en asociación con maíz y frijol. Se obtuvieron los indicadores de evaluación económica de proyectos : VAN, TIR, B/C, y el punto de equilibrio; para los dos agroecosistemas la viabilidad fue positiva. En el tercer año, los indicadores de la asociación de cultivos son mayores. Para el cuarto año los indicadores son mayores en el monocultivo, por efecto del rendimiento de piñón. Desde la perspectiva agroecológica, es más deseable la asociación de cultivos, al tener una mayor capacidad de aprovechamiento de los recursos y de regeneración del agroecosistema; debido a este interés se realizó un análisis de sensibilidad de la asociación de cultivos con Jatropha curcas para comparar la variación en la utilidad de acuerdo a cambios en el costo, volúmen y precio de venta de la semilla......This paper analyzes the profitability prospects for two systems of production of Jatropha curcas for the third and fourth year of establishment in monocrop and with maize and bean intercrops. The indicators of economic evaluation of projects were obtained: NPV, IRR, B/C, and the point of equilibrium. For the two agroecosystems viability was positive. In the third year the indicators were higher in the intercrops than monocrop. For the fourth year indicators were higher in the monocrop than intercrops. From agroecological perspective, intercrops are more desirable, for their capacity to use resource and to regenerate the agroecosystem. Due to this interest, sensitivity analysis was performed for intercrops, which allowed to compare the variation in the utility according to changes in cost, volume and selling price of the seed.
Trend Fundamentals and Exchange Rate Dynamics
Creators: name: Huber, Florian
name: Kaufmann, Daniel
Publisher: name: ETH Zurich
Year: 2015
Subjects: subject: UNEMPLOYMENT
subject: UNITED STATES DOLLAR (GELDWESEN)
subject: STOCHASTIC MODELS + STOCHASTIC SIMULATION (PROBABILITY THEORY)
subject: UNITED STATES DOLLAR (MONETARY SYSTEM)
subject: Trend inflation
subject: Natural rate of unemployment
subject: VOLATILITÄT (FINANZEN)
subject: Exchange rate models
subject: STOCHASTISCHE MODELLE + STOCHASTISCHE SIMULATION (WAHRSCHEINLICHKEITSRECHNUNG)
subject: Unobserved components-stochastic volatility model
subject: ARBEITSLOSIGKEIT
subject: WECHSELKURS
subject: EXCHANGE RATE
subject: VOLATILITY (FINANCE)
subject: Taylor rule
subject: info:eu-repo/classification/ddc/330
subject: info:eu-repo/classification/ddc/510
subject: Economics
subject: Mathematics
subject: FOS: Mathematics

description: KOF Working Papers, 393
Kondo Effect in Electromigrated Gold Break Junctions
Creators: name: Houck, A. A.
name: Labaziewicz, J.
name: Chan, E. K.
name: Folk, J. A.
name: Chuang, I. L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present gate-dependent transport measurements of Kondo impurities in bare gold break junctions, generated with high yield using an electromigration process that is actively controlled. Thirty percent of measured devices show zero-bias conductance peaks. Temperature dependence suggests Kondo temperatures \~7K. The peak splitting in magnetic field is consistent with theoretical predictions for g=2, though in many devices the splitting is offset from 2guB by a fixed energy. The Kondo resonances observed here may be due to atomic-scale metallic grains formed during electromigration.
description: 5 pages, 3 figures
Empirical Calibration of Adaptive Learning
Creators: name: Berardi, Michele
name: Galimberti, Jaqueson K.
Publisher: name: ETH Zurich
Year: 2015
Subjects: MACHINE LEARNING (ARTIFICIAL INTELLIGENCE)
Recursive estimation
MASCHINELLES LERNEN (KÜNSTLICHE INTELLIGENZ)
MAKROÖKONOMISCHE MODELLE (OPERATIONS RESEARCH)
COMPUTER APPLICATIONS IN ECONOMICS
Expectations
COMPUTERANWENDUNGEN/WIRTSCHAFTSWISSENSCHAFTEN
Bounded rationality
Forecasting
Real-time
MACROECONOMIC MODELS (OPERATIONS RESEARCH)
info:eu-repo/classification/ddc/004
info:eu-repo/classification/ddc/330
Data processing, computer science
Economics

description: KOF Working Papers, 392
Extracting Rotational Energy in Supernova Progenitors: Transient Poynting Flux Growth vs. Turbulent Dissipation
Creators: name: Blackman, Eric G.
name: Nordhaus, Jason T.
name: Thomas, John H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Observational evidence for anisotropy in supernovae (SN) may signal the importance of angular momentum and differential rotation in the progenitors. Free energy in differential rotation and rotation can be extracted magnetically or via turbulent dissipation. The importance that magnetohydrodyamic jets and coronae may play in driving SN motivates understanding large scale dynamos in SN progenitors. We develop a dynamical large scale interface dynamo model in which the differential rotation and rotation deplete both through Poynting flux and turbulent diffusion. We apply the model to a differentially rotating core surrounded by a convection zone of a SN progenitor from a initial 15$M_\odot$ star. Unlike the Sun, the dynamo is transient because the differential rotation is primarily due to the initial collapse. Up to $\sim 10^{51}$erg can be drained into time-integrated Poynting flux and heat, the relative fraction of which depends on the relative amount of turbulence in the shear layer vs. convection zone and the fraction of the shear layer into which the magnetic field penetrates. Both sinks can help facilitate explosions and could lead to different levels of anisotropy and pulsar kicks. In all cases, the poloidal magnetic field is much weaker than the toroidal field, and the Poynting flux is lower than previous estimates which invoke the magnitude of the total magnetic energy. A signature of a large scale dynamo is that the oscillation of the associated Poynting flux on $\sim 1$ sec time scales, implying the same for the energy delivery to a SN.
description: 26 pages, submitted to New Astronomy (revised to incorporate the depletion of shear energy via both turbulent diffusion and magnetic stress)
Changing the mind of the city : the role of the Hastings Institute / EEO in building multicultural readiness in Vancouver’s host society
Creators: name: Brock, Samara
Publisher: name: University of British Columbia
Year: 2010

description: The world is undergoing the largest human migration in history: that from rural to urban. It is expected that sixty percent of the world population will be urban by 2030. This unprecedented human migration will bring together increasingly diverse populations to live together in growing urban centres. Canada’s cities are no exception to these global trends of urbanization and immigration. While immigrants make up 18% of the population of Canada, more than half live in Montreal, Toronto and Vancouver. While this diversity will help to enrich our cities, it could also mean increased ethnic tensions and, in the worst cases, ghettoization or violence. Ths study looks at ways to engage Canada’s current residents or "the host culture" in an active multiculturalism, in which they learn to co-adapt with diverse immigrants. In particular, it focuses on training that has been carried out over the past fifteen years by the City of Vancouver’s Hastings Institute and Equal Employment Opportunity program to build cross-cultural understandmg in members of Vancouver’s host society. Using a case study approach framed by phonetic research and experimental ethnographic methods, this study looks at the impacts of this training over time and asks whether the programs of the Hastings Institute offer an effective approach to helping to prepare Canada’s cities for immigration. Relying on interviews carried out with past trainees, employees and trainers of the Hastings Institute and Equal Employment Opportunity program, as well as key documents such as Council reports and training materials, this study gives an overview of the work of this organization and gives recommendations for how Vancouver and other cities can better build multicultural readiness. It also discusses how provincial and federal governments can become more engaged in multicultural initiatives and programming at the local level. Overall, it finds that in order to better prepare Canada’s host society for increasingly diverse cities, we must re-envision our approaches to multiculturalism at the local, provincial and federal levels.
Comprehensive Characterization of Terahertz Generation with the Organic Crystal BNA
Creators: name: Tangen, Isaac C.
name: Valdivida-Berroeta, Gabriel A.
name: Heki, Larry K.
name: Zaccardi, Zachary B.
name: Jackson, Erika W.
name: Bahr, Charles B.
name: Michaelis, David J.
name: Johnson, Jeremy A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We characterize the terahertz (THz) generation of N-benzyl-2-methyl-4-nitroaniline (BNA), with crystals ranging in thickness from 123-700 μm. We compare excitation using 800-nm and 1250 to 1500-nm wavelengths. Pumping BNA with 800-nm wavelengths and longer near-infrared wavelengths results in a broad spectrum, producing out to 6 THz using a 100-fs pump, provided the BNA crystal is thin enough. ~200 μm or thinner crystals are required to produce a broad spectrum with an 800-nm pump, whereas ~300 μm thick crystals are optimal for broadband THz generation using the longer wavelengths. We report the favorable THz generation and optical characteristics of our BNA crystals that make them attractive for broadband, high-field THz generation, and we also find significant differences to BNA results reported in other works.
description: 7 pages, 5 figures
Effects of substrate corrugation during helium adsorption on graphene in the grand canonical ensemble
Creators: name: Erwin, Gage
name: Del Maestro, Adrian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Adsorption of 4He on atomically flat substrates such as graphene provides a route towards the engineering of low dimensional quantum phases including superfluids and strongly interacting insulators. In this study, we explore the effects of graphene corrugation on the helium adsorption process via quantum Monte Carlo simulations in the grand canonical ensemble. We utilize an empirical adsorption potential based on the superposition of individual helium-carbon interactions and systematically control corrugation, from a smooth membrane to the fully rough potential, via the implementation of a cutoff in reciprocal space. The results highlight the importance of using a fully corrugated potential to understand the plethora of commensurate and incommensurate phases in the first adsorbed layer. Surprisingly, some residual effects of corrugation are still present before and during the promotion and onset of a second adsorbed layer, where a smooth adsorption can lead to enhanced particle fluctuations in a helium-interaction dominated regime.
description: 12 pages, 8 figures (added additional system sizes). Submitted to the JLTP Special Issue: Quantum Fluids and Solids (QFS2023). For associated data and code repository see: https://github.com/DelMaestroGroup/papers-code-GrapheneCorrugation
Domestic Violence and Its health Effects among residents of Kwara state Nigeria
Creators: name: Idowu Oluwaseyi
name: Olukunmi Lanre Olaitan
name: Olorunleke Emmanuel Alebiosu
name: Leah, Dominic Olufunmilola
Publisher: name: figshare
Year: 2020
Subjects: subject: 111799 Public Health and Health Services not elsewhere classified
subject: FOS: Health sciences
subject: 169999 Studies in Human Society not elsewhere classified
subject: FOS: Sociology

description: This work discussed domestic violence especially intimate partner violence among residents of Kwara state Nigeria with particular emphasis on Its Health effects.
Repositório Científico da CPLP
Creators: name: Lopes, Paulo
name: Moreira, João Mendes
name: Rodrigues, Eloy
name: Carvalho, José
name: Truta, Raquel
name: Ima-Panzo, João Boaventura
name: Segundo, Washington
Publisher: name: Zenodo
Year: 2022

description: Apresentação realizada na sessão Comunicação I da 13ª Conferência Lusófona de Ciência Aberta, formato híbrido, de 10 a 12 de outubro de 2022.
On-Device Soft Sensors: Real-Time Fluid Flow Estimation from Level Sensor Data
Creators: name: Ling, Tianheng
name: Qian, Chao
name: Schiele, Gregor
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Soft sensors are crucial in bridging autonomous systems' physical and digital realms, enhancing sensor fusion and perception. Instead of deploying soft sensors on the Cloud, this study shift towards employing on-device soft sensors, promising heightened efficiency and bolstering data security. Our approach substantially improves energy efficiency by deploying Artificial Intelligence (AI) directly on devices within a wireless sensor network. Furthermore, the synergistic integration of the Microcontroller Unit and Field-Programmable Gate Array (FPGA) leverages the rapid AI inference capabilities of the latter. Empirical evidence from our real-world use case demonstrates that FPGA-based soft sensors achieve inference times ranging remarkably from 1.04 to 12.04 microseconds. These compelling results highlight the considerable potential of our innovative approach for executing real-time inference tasks efficiently, thereby presenting a feasible alternative that effectively addresses the latency challenges intrinsic to Cloud-based deployments.
description: Accepted by the 1st AUTONOMOUS UBIQUITOUS SYSTEMS (AUTOQUITOUS) WORKSHOP of EAI MobiQuitous 2023 - 20th EAI International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services, 8 pages, 6 figures, 1 Table
BAO signatures in the 2-point angular correlations and the Hubble tension
Creators: name: Nunes, Rafael C.
name: Bernui, Armando
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: An observational tension on estimates of the Hubble parameter, $H_0$, using early and late Universe information, is being of intense discussion in the literature. Additionally, it is of great importance to measure $H_0$ independently of CMB data and local distance ladder method. In this sense, we analyze 15 measurements of the transversal BAO scale, $θ_{\rm BAO}$, obtained in a weakly model-dependent approach, in combination with other data sets obtained in a model-independent way, namely, Big Bang Nucleosynthesis (BBN) information, 6 gravitationally lensed quasars with measured time delays by the H0LiCOW team, and measures of cosmic chronometers (CC). We find $H_0 = 74.88_{-2.1}^{+1.9}$ km s${}^{-1}$ Mpc${}^{-1}$ and $H_0 = 72.06_{-1.3}^{+1.2}$ km s${}^{-1}$ Mpc${}^{-1}$ from $θ_{BAO}$+BBN+H0LiCOW and $θ_{BAO}$+BBN+CC, respectively, in fully accordance with local measurements. Moreover, we estimate the sound horizon at drag epoch, $r_{\rm d}$, independent of CMB data, and find $r_{\rm d}=144.1_{-5.5}^{+5.3}$ Mpc (from $θ_{BAO}$+BBN+H0LiCOW) and $r_{\rm d} =150.4_{-3.3}^{+2.7}$ Mpc (from $θ_{BAO}$+BBN+CC). In a second round of analysis, we test how the presence of a possible spatial curvature, $Ω_k$, can influence the main results. We compare our constraints on $H_0$ and $r_{\rm d}$ with other reported values. Our results show that it is possible to use a robust compilation of transversal BAO data, $θ_{BAO}$, jointly with other model-independent measurements, in such a way that the tension on the Hubble parameter can be alleviated.
description: 8 pages, 7 figures. Matches the version published in EPJC
A Change in the Physical State of $η$ Carinae?
Creators: name: Davidson, K.
name: Martin, J. C.
name: Humphreys, R. M.
name: Ishibashi, K.
name: Gull, T. R.
name: Stahl, O.
name: Weis, K.
name: Hillier, D. J.
name: Damineli, A.
name: Corcoran, M.
name: Hamann, F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: During $η$ Car's spectroscopic event in mid-2003, the stellar wind's bright H$α$ and H$β$ emission lines temporarily had a distinctive shape unlike that reported on any previous occasion, and particularly unlike the 1997--98 event. Evidently the structure of the wind changed between 1997 and 2003. Combining this with other evidence, we suspect that the star may now be passing through a rapid stage in its recovery from the Great Eruption seen 160 years ago. In any case the data indicate that successive spectroscopic events differ, and the hydrogen line profiles are quantitative clues to the abnormal structure of the wind during a spectroscopic event.
description: Accepted to appear in the Feb 2005 AJ; 22 pages, including 4 figures and 2 tables
IDENTIFICATION AND MEASUREMENT OF ADULTERATION IN MIZORAM GASOLINE USING FTIR SPECTROSCOPY AND CHEMOMETRIC METHODS
Creators: name: LAL BIAKTLUANGA
name: JOSEF LALHRUAITLUANGA
name: J. LALRAMNGHAKA
name: H.H. THANGA
Publisher: name: Zenodo
Year: 2024
Subjects: Gasoline, Adulteration, PCA-LDA, PLS-DA, PLSR.

description: Abstract

Gasoline adulteration remains a global problem due to its economic, health and environmental impacts. The gasoline adulteration monitoring methods used in the present study were not effective in most developing countries due to the associated implementation costs. Therefore, a fast, reliable, and cheaper method of vibrational spectroscopy in combination with chemometric tools was developed. In this study, sensitive FTIR spectroscopy was proposed in combination with multivariate techniques to analyse adulteration in Mizoram gasoline fuels. Standard solutions were prepared by mixing the gasoline with different proportions of kerosene and methyl tert-butyl ether (MTBE), which are then used for model calibration. The chemometric techniques used were principal component analysis-linear discriminant analysis (PCA-LDA), classification of partial least squares discriminant analysis (PLS-DA) and the regression method (PLS). The developed PCA-LDA classification model has an overall error rate of 12.5%, while PLS-DA has an accuracy of 100% for model. The PLS regression models of kerosene and MTBE with a high significance value of R2 0.996 and 0.986, RMSEP 0.275 and 0.291 were able to predict adulterant and MTBE concentrations, respectively. However, PCA-LDA achieved better accuracy than PLS-DA in classification analysis, especially on oxygenated gasoline samples.
Capacity building for food and nutritional security : a case study on governance in Sao Paulo State, Brazil
Creators: name: Bentley, Stephen Cody
Publisher: name: University of British Columbia
Year: 2010

description: This thesis is a case study of the food security movement that is active in urban areas in the state of São Paulo, Brazil. It examines the role that innovative governance structures, particularly horizontal and vertical intergovernmental cooperative agreements, and partnerships between governments and civil society play in building capacity for food security, social inclusion and sound public administration in such urban areas. For its theoretical basis, the thesis examines the literature on food security and its links to democratic governance and citizenship, as well as the discourse on Brazil’s own process of democratization and the move to decentralized, participatory approaches to governance. After providing an historical overview of how Brazil’s food security systems have evolved over time, the thesis turns to an assessment of urban food security governance in São Paulo state. Here it examines some of the key factors required for the development and implementation of effective municipal food security policy, as well as some of the challenges faced by local policy-makers. In the penultimate chapter, the thesis considers how effective practices in food security planning at the local level can be extended beyond the borders of a few resource- and knowledge-rich municipalities, through the creation of regional and state-level governance structures. The thesis concludes with a summary of the empirical findings, an overall conclusion with theoretical considerations, implications for action for those involved with food security planning in similar environments, and implications for further research.
Analysis of Compression Techniques for DNA Sequence Data
Creators: name: Bibi, Shakeela
name: Iftekhar, Adnan
name: Iqbal, Javed
name: Mir, Hassan
Publisher: name: figshare
Year: 2020
Subjects: subject: 60102 Bioinformatics
subject: FOS: Computer and information sciences

description: Biological data mainly comprises of Deoxyribonucleic acid(DNA) and protein sequences. These are the biomolecules which are present in all cells of human beings. Due to the self-replicating property of DNA, it is a key constitute of genetic material that exist in all breathing creatures. This biomolecule (DNA) comprehends the genetic material obligatory for the operational and expansion of allpersonified lives. To save DNA data of single person we require 10CD-ROMs. Moreover, this size is increasing constantly, and more and more sequences are adding in the public databases. This abundant increase in the sequence data arise challenges in the precise information extraction from this data. Since many data analyzing and visualization tools do not support processing of this huge amount ofdata. To reduce the size of DNA and protein sequence, many scientists introduced various types of sequence compression algorithms such as compress or gzip, Context Tree Weighting (CTW), Lampel ziv Welch (LZW), arithmetic coding, run length encoding and substitution method etc. These techniques have sufficiently contributed to minimizethe volume of the biological datasets. On the other hand, thetraditional compression techniques are also not much suitable for the compression of these types of sequential data. In this paper, we have explored diverse types of techniques for compression of large amount of DNA Sequence data. In this paper, the analysis of techniques reveals that efficient techniques not only reduce the size of the sequence but also avoid from any information loss. The review of existing studies also shows that compression of DNA sequence is significant for understanding the critical characteristics of DNA data in addition to improving storage efficiency and data transmission. In addition, the compression of protein sequence is a challenge for the research community. The major parameters for evaluation of these compression algorithms includes compression ratio, running time complexity etc.
Is Deflation Costly After All? Evidence from Noisy Historical Data
Creators: name: Kaufmann, Daniel
Publisher: name: ETH Zurich
Year: 2016
Subjects: Real activity
ECONOMIC HISTORY
Monetary history
DEFLATION
NINETEENTH CENTURY A.D.
Deflation
Measurement error
WIRTSCHAFTSGESCHICHTE
MEASUREMENT ERRORS (MATHEMATICAL STATISTICS)
MESSFEHLER (MATHEMATISCHE STATISTIK)
NEUNZEHNTES JAHRHUNDERT N. CHR.
IV
info:eu-repo/classification/ddc/330
Economics

description: KOF Working Papers, 421