289 research outputs found
Replication Data for: "The Political Fallout of Air Pollution"
No full textThis dataset contains replication data and code for "The Political Fallout of Air Pollution" based on publicly available data on voting outcomes, pollution, weather and regional economic and demographic data. Codes for the analysis with two confidential surveys are provided. The readme explains how replicators can obtain the survey data
Minimizing the condition number of a positive definite matrix by completion
No full textElsner L, He C, Mehrmann V. Minimizing the condition number of a positive definite matrix by completion. Numerische Mathematik. 1994;69(1):17-23.We consider the problem of minimizing the spectral condition number of a positive definite matrix by completion: [GRAPHICS] where A is an n x n Hermitian positive definite matrix, B a p x n matrix and X is a free p x p Hermitian matrix. We reduce this problem to an optimization problem for a convex function in one variable. Using the minimal solution of this problem we characterize the complete set of matrices that give the minimum condition number
Taking the skill bias out of global migration
No full textGlobal migration is heavily skill-biased, with tertiary-educated workers being four times more likely to migrate than workers with a lower education. In this paper, we quantify the global impact of this skill bias in migration. Based on a quantitative multi-country model with trade, remittances and human capital externalities, we compare the current world to a counterfactual with the same number of migrants, where all migrants are neutrally selected from their countries of origin. The skill bias in migration increases welfare in virtually all OECD countries, while the effects on non-OECD countries are more subtle. They are negative in many countries but positive in countries where migration-based externalities are strong. We find the global effect of the skill-bias to be unambiguously positive
Proposal measures for the reactivation of industrial degraded areas in the case of the Zasavje statistical region
No full textV magistrskem delu smo se dotaknili problematike industrijskih degradiranih območij v Sloveniji. Sprva smo pregledali različne definicije degradiranega območja, tako tuje kot tudi slovenske. Pregledali in proučili smo slovenske in evropske iniciative na temo degradiranih območij in raziskali različna merila za določitev le teh. Sledil je pregled različnih ukrepov in strategij. Pregledali smo tudi številne primere dobrih praks prenove degradiranih industrijskih območij in poizkušali ugotoviti, na kakšen način so se lotili prenove. V magistrski nalogi smo v aplikativnem delu obravnavali Zasavsko statistično regijo, ki velja za najbolj degradirano regijo v Sloveniji. Regijo smo podrobno proučili in s pomočjo spletne aplikacije za vodenje evidence FDO poiskali industrijska degradirana območja v Zasavski regiji. Območja smo si ogledali na terenu in jih podrobno analizirali, izvedli smo tudi polstrukturiran intervju z nekaterimi lastniki zemljišč. Raziskava je pokazala, da je večina območij v lasti pravnih oseb, nekaj območij pa je v javni lasti. V zaključku naloge smo nato predlagali še ukrepe za reaktivacijo degradiranih industrijskih območij.In this master’s thesis the author discussed the problems of industrial degraded areas in Slovenia. The first task was to review various definitions of the degraded area, both foreign and Slovenian. The next step was to review and study Slovenian and European initiatives in degraded areas and investigate various criteria for determining degraded areas, which was followed by an overview of various measures and strategies. Several examples of good practice in the field of renovation of degraded industrial sites were examined, whereby the author tried to determine the renewal approach that was applied. In the empirical part of this thesis, issues in Zasavje statistical region, which is considered to be the most degraded region in Slovenia, were addressed. The region was examined in detail and industrial degraded areas in Zasavje region were determined by means of an online record-keeping application FDO (Functional degraded areas). The author has visited the examined areas, analysed them in detail, and conducted some semi-structured interviews with some landowners. The research has shown that the majority of the areas is owned by legal entities and that some areas are publicly owned. In the conclusion, the author suggested the measures that should be taken to reactivate degraded industrial sites
Relation of skewness factor and convection velocity in turbulent boundary layer
No full textThe paper is devoted to prove the relation between skewness factor and convection velocity in turbulent boundary layer. It appears that skewness factor can be used as an indicator of convection velocity of coherent structures, which is not always equal to the average flow velocity. The analysis has been performed based upon velocity profiles measured with hot-wire technique in turbulent boundary layer with pressure gradient corresponding to turbomachinery conditions. The results show that the cross product term of skewness factor decomposed by spectral filtering, which is also alternative measure of amplitude modulation, describes the convection velocity in zero pressure gradient turbulent boundary layer
Improved simulation of non-Gaussian temperature and polarization CMB maps
No full textWe describe an algorithm to generate temperature and polarization maps of the
cosmic microwave background radiation containing non-Gaussianity of arbitrary
local type. We apply an optimized quadrature scheme that allows us to predict
and control integration accuracy, speed up the calculations, and reduce memory
consumption by an order of magnitude. We generate 1000 non-Gaussian CMB
temperature and polarization maps up to a multipole moment of l_max = 1024. We
validate the method and code using the power spectrum and the fast cubic
(bispectrum) estimator and find consistent results. The simulations are
provided to the community.Comment: 18 pages, 19 figures. Accepted for publication in ApJS. Simulations
can be obtained at http://planck.mpa-garching.mpg.de/cmb/fnl-simulations;
source code is available at https://github.com/elsner/fnl_mapmakin
Benjamin Schmolck's Morgen- und Abendgebete, wie auch Andachten zur Beichte und zum Abendmahl, in gebundener Rede Zum Andenken seines vor hundert Jahren erfolgten seeligen Heimganges
No full textUndergraduate education in palliative medicine in Germany: a longitudinal perspective on curricular and infrastructural development
No full textBackground: In 2009, palliative medicine became an integrated and compulsory part of undergraduate training in Germany by legislation. After a transitional period, all medical faculties were required to provide adequate teaching with an according examination and certification procedure. In parallel, we conducted bi-annual surveys on all medical faculties in Germany to examine for potential discrepancies between the implementation process and their intended consequences on teaching time and content. Methods: Four consecutive bi-annual surveys (2006, 2008, 2010, 2012) of all 36 medical faculties in Germany were performed, using purposively for this study developed questionnaires. Likert scales and closed questions were analyzed descriptively. Results: Medical Faculty response rate increased from 50 % in 2006 to 88.9 % in 2012. Teaching coordinators in palliative medicine primarily had an anesthesiology or internal medicine background. There was a noted increase over time of the involvement of specialized palliative care units (PCUs) as providing the setting for education. The number of faculties that were able to offer a complete 16 weeks of training in palliative medicine during the "final year" rose steadily. In addition, increased patient-centered teaching formats have been implemented over time. The faculties which offered innovative teaching formats with actors as patients (standardized patient interaction) increased, as did the total number of mandatory examinations. The number of faculties that provided compulsory teaching in a condensed manner within a single academic year increased sharply from 3 of 31 responding faculties in 2010 to 19 of 32 responding faculties in 2012. Conclusions: Until now, teaching conditions and structures in palliative medicine in Germany have proven to be extraordinarily heterogeneous. Although professorships ("Chairs") in palliative medicine proved to be particularly beneficial and supportive in curricular and structural development, only a minority of faculties provide leading academic positions in palliative medicine
Über Eigenwerteinschließungen mit Hilfe von Gerschgorin-Kreisen
No full textElsner L. Über Eigenwerteinschließungen mit Hilfe von Gerschgorin-Kreisen. Zeitschrift für angewandte Mathematik und Mechanik. 1970;50(6):381-384.Let the union of some Gerschgorin-disks of a matrix A be separated from the other disks by a circle of radius r and center Gamma. Medley and Varga have characterized the minimal r, which can be achieved by diagonal transformations of A and fixed Gamma. It is shown that this result can easily be proved with methods used in an earlier paper of the author. In addition, the maximal radius is characterized, easily computable bounds are given and it is shown, that A and the transposed matrix AT have the same optimal radii.Die Vereinigung gewisser Gerschgorin-Kreise einer Matrix A sei durch einen Kreis vom Radius r und Mittelpunkt Gamma von den übrigen Gerschgorin-Kreisen getrennt. Medley und Varga haben das minimale r, das bei festem Gamma durch Diagonaltransformationen von A erreicht werden kann, charakterisiert. Es wird gezeigt, daß dieses Ergebnis mit den in einer früheren Arbeit des Autors benutzten Methoden leicht bewiesen werden kann. Außerdem wird der maximale Radius charakterisiert, praktisch verwendbare Abschätzungen angegeben und gezeigt, daß A und die transponierte Matrix AT die gleichen optimalen Radien haben
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