197,332 research outputs found
'Sunde' kompt von 'sundern'. Etymologisches zu 'Sünde'
No full textSchumacher M. 'Sunde' kompt von 'sundern'. Etymologisches zu 'Sünde'. Zeitschrift für deutsche Philologie. 1991;110(1):61-67
Gauss-Pólya Type Results and the Hölder Inequality
No full textSome special Gauss–Pólya type inequalities are obtained by the use of Hölder’s inequality
Life expectancy and economic growth: the role of the demographic transition
No full textLife expectancy, Income growth, Demographic transition, Population growth, Fertility, Unified growth theories, Non-Linear dynamics, Non-monotocities, IV estimates, Epidemiological revolution, J10, J13, N30, O10, O40, E10,
Disease and Development: The Role of Life Expectancy Reconsidered
No full textThis note estimates the causal effect of life expectancy on per capita income and tests the hypothesis of a non-monotonic effect using finate mixture models. The results confirm the hypothesis and qualify the recent evidence for a negative effect by Acemoglu and Johnson (2007)
The timing of the demographic transition and economic growth
No full textThis research provides novel evidence that the time since the onset of the demographic transition affects growth dynamics across countries and within countries. This sheds light on a factor that has been neglected in the existing empirical growth literature
Human capital formation, life expectancy, and the process of Development
No full textFrom the second half of the eighteenth cen-tury onward, the Western world experienced unprecedented changes in the economic envi-ronment and in virtually all other aspects of human life. After continued stagnant develop-ment, aggregate and per capita incomes entered a path of rapid and sustained growth (as de-picted in Figure 1A). At the same time, living conditions also changed radically. Mortality fell and average life expectancy at birth as well as at later ages, which had virtually been unchanged for millennia, increased significantly within just a few generations (see Figure 1B). Simulta-neously, the traditional social environment changed profoundly, as the vast majority of the population became educated. Literacy, which used to be the privilege of a small elite, became widespread among the population (as is illus-trated in Figure 1C by the population share able to sign documents). While almost all skills were acquired through apprenticeships before the In-dustrial Revolution, formal schooling represents the main channel of human capital formation afterward.1 Furthermore, the size of the popula-tion increased substantially (Figure 1D).2 This increase seems to have been driven mainly by increased longevity, rather than changed fertility behavior.3 While GDP kept growing unboundedly after the transition, the growth in life expectancy and population eventually attenuated. This paper provides a theory explaining this transition in income, life expectancy, education, and population size as the endogenous outcome of a gradual process of development. Earlier contri-butions to the literature have concentrated on the existence of multiple steady-state equilibria and have explained the transition from a stagnant re-gime to an environment of sustained growth by scale effects, exogenous technological change, or shocks that move the dynamic system from on
Human capital and the diffusion of technology
No full textThis research provides novel evidence that human capital affects the diffusion of technologies across countries. More human capital is associated with shorter adoption lags and greater intensity of use of new technologies, providing a link between education and economic backwardness.(c) 2023 Elsevier B.V. All rights reserved
Direct Evidence in Risk Attitudes and Migration
No full textIt has long been hypothesized that individuals'' migration propensities depend on their attitudes towards risk, but the empirical evidence, to the extent that it exists, has been indirect. In this paper, we use newly available data from the German Socio-Economic Panel to measure directly the relationship between migration propensities and attitudes towards risk. We find that individuals who are more willing to take risks are more likely to migrate between labor markets in Germany. This result is robust to stratifying by age, sex, education, national origin, and a variety of other demographic characteristics. The effect is substantial relative to the unconditional migration propensity and compared to the conventional determinants of migration. We find no evidence that these findings are the result of reverse causality.education, training and the labour market;
Infrared Image Enhancement and Human Detection Performance Measures
No full textThe ability to detect and recognise dangerous objects at a safe distance is a very important task in a number of defence, police and security applications. In this paper, we look at ways of increasing the effectiveness of infrared imagery for object recognition through processes such as super-resolution image reconstruction and deconvolution methods. In this paper, we propose two techniques for assessing image quality improvement: operator assessment and edge detection; and report on some initial work recently undertaken.K. Hanton, J. Sunde, M. Butavicius, V. Gluscevi
On the application of a polling model with non-zero walk times and priority processing to a medical emergency-room environment
No full textWe consider a queueing model used previously (Scholz and Sunde, 1998) to model a military high frequency (HF) communication network. Our discussion has moved from the original case where we aimed to maintain a high grade of service for the highest priority traffic classes. The characteristics of this network were that link set-up time was longer than the service time: it often took longer to establish the connection than for the actual transmission of the message. In (Pearce et al., 2000) we looked at a polling model with multiple servers and multiple queues, with each server visiting the queues according to a server allocation algorithm. The queueing system comprises a set of waiting lines to which requests arrive to be served by a pool of servers. We restrict our attention to the case where movement of servers from queue to queue does not happen in zero time. Our discussion focuses on the basics of the two-queue situation. We look at the way this queueing model can be applied to a medical emergency room, where setting up for certain surgery procedures takes longer than the actual procedures themselves. The significance of this model is the applicability to different problems, from communication networks to medical emergency rooms.Cicin-Sain, M. ; Pearce, C.E.M. ; Sunde, J
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