6,336 research outputs found

    Unmarried adolescents and filial assistance in eighteenth-century Flanders

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    Service was one of the main characteristics of the European Marriage Pattern in pre-industrial western Europe. During this stage of the life cycle adolescents could acquire the material assets and skills that were required to marry and start an independent household. Whilst in service, servants could save between 40 and 60 per cent of their cash wage. This paper illustrates that servants also used their earnings to assist their families. Parents of servants in particular could rely on both remittances in cash and in kind. As such, placing children in service was also a source of income for peasant household in Flanders. I argue that both patterns of land ownership and the restricted access to welfare ressources explain why servants displayed this altruistic behaviour.adolescents, farm servants, saving, Flanders, family assistance, poor relief, household formation, European Marriage Pattern,

    Nine protestants are to be esteemed worth ten catholics. Representing religion, labour and economic performance in pre-Industrial Europe, c.1650 - c.1800.

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    Religion was one of the factors that was frequently identified by seventeenth- and eighteenth-century economists as exerting an important influence on the pre-industrial European economies. These writers were especially interested in the economic effects of the Reformation on the economic perfomance of European countries. Nearly all authors argued that Protestantism and economic success were positively correlated. In this paper, the arguments of economic writers are reviewed with reference to the issue of religious holidays. This analysis shows that a high number of religious holidays, on which nearly all forms of manual labour was forbidden, were portrayed as detrimental to the economy.Religion; Economy; Max Weber; Protestant Ethic; Holidays; Leisure; History of Economic Thought; Mercantilism; Industrious Revolution; Work Hours

    Variety and regional economic growth in the Netherlands

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    In economic theory, one can distinguish between variety as a source of regional knowledge spillovers, called Jacobs externalities, and variety as a portfolio protecting a region from external shocks. We argue that Jacobs externalities are best measured by related variety (within sectors), while the portfolio argument is better captured by unrelated variety (between sectors). We introduce a methodology based on entropy measures to compute related variety and unrelated variety. Using data at the COROP level for the period 1996-2002, we find that Jacobs externalities enhance employment growth, while unrelated variety dampens unemployment growth. Productivity growth, by contrast, can be explained by traditional determinants including investments and R&D expenditures. Implications for regional policy in The Netherlands follow.evolutionary economic geography, new economic geography, economic variety

    A macroscopic model for sessile droplet evaporation on a flat surface

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    The evaporation of sessile droplets on a flat surface involves a complex interplay between phase change, diffusion, advection and surface forces. In an attempt to significantly reduce the complexity of the problem and to make it manageable, we propose a simple model hinged on a surface free energy-based relaxation dynamics of the droplet shape, a diffusive evaporation model and a contact line pinning mechanism governed by a yield stress. Our model reproduces the known dynamics of droplet shape relaxation and of droplet evaporation, both in the absence and in the presence of contact line pinning. We show that shape relaxation during evaporation significantly affects the lifetime of a drop. We find that the dependence of the evaporation time on the initial contact angle is a function of the competition between the shape relaxation and evaporation, and is strongly affected by any contact line pinning.Comment: 13 pages, 8 figure

    Mapping Applications to an FPFA Tile

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    This paper introduces a transformational design method which can be used to map code written in a high level source language, like C, to a coarse grain reconfigurable architecture. The source code is first translated into a control data flow graph (CDFG), which is minimized using a set of behaviour preserving transformations, such as dependency analysis, common subexpression elimination, etc. After applying graph clustering, scheduling and allocation transformations on this minimized graph, it can be mapped onto the target architecture

    Real Pension Rights as a Control Mechanism for Pension Fund Solvency

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    This paper models policy responses to changes in solvency by Dutch occupational pension funds using a unique panel dataset containing the balance sheets of all registered pension funds in the Netherlands over a period of 15 years (1993-2007). The model describes how nominal pension rights are expanded, by e.g. indexation or backservice, or, on the contrary, how the current pension accumulation is skimmed, e.g. by setting the pension premium over its actuarially fair price to build buffers. Policy responses are explained by the funding ratio and other pension fund characteristics such as pension funds' size and type, and participants' ages. We find that pension rights are expanded in line with the funding ratio, but that the pension funds' response function exhibits two sharp and significant behavioural breaks, close to the minimum funding ratio of 105% and the target ratio of around 125%. These levels also play a pivotal role in current supervisory regulation. We further find that large pension funds and grey funds are relatively generous to participants.pension funds, pension rights, risk sharing instruments, indexation, funding ratio, solvability, regime shifts.

    The Cosmically Depressed: Life, Sociology and Identity of Voids

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    We review and discuss aspects of Cosmic Voids that form the background for our Void Galaxy Survey (see accompanying paper by Stanonik et al.). Following a sketch of the general characteristics of void formation and evolution, we describe the influence of the environment on their development and structure and the characteristic hierarchical buildup of the cosmic void population. In order to be able to study the resulting tenuous void substructure and the galaxies populating the interior of voids, we subsequently set out to describe our parameter free tessellation-based watershed void finding technique. It allows us to trace the outline, shape and size of voids in galaxy redshift surveys. The application of this technique enables us to find galaxies in the deepest troughs of the cosmic galaxy distribution, and has formed the basis of our void galaxy program.Comment: 10 pages, 4 figures, proceedings "Galaxies in Isolation" (May 2009, Granada, Spain), eds. L. Verdes-Montenegro, ASP (this is a colour, extended and combined version; accompanying paper to Stanonik et al., arXiv:0909.2869, in same volume

    Extremely uniform lasing wavelengths of InP microdisk lasers heterogeneously integrated on SOI

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    A standard deviation in lasing wavelength lower than 500pm is characterized on nominally identical and optically-pumped microdisk lasers, heterogeneously integrated on the same SOI circuit. This lasing wavelength uniformity is obtained using electron-beam lithography

    Compound redistribution due to droplet evaporation on a thin polymeric film: theory

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    A thin polymeric film in contact with a fluid body may leach low-molecular-weight compounds into the fluid. If this fluid is a small droplet, the compound concentration within the liquid increases due to ongoing leaching in combination with the evaporation of the droplet. This may eventually lead to an inversion of the transport process and a redistribution of the compounds within the thin film. In order to gain an understanding of the compound redistribution, we apply a macroscopic model for the evaporation of a droplet and combine that with a diffusion model for the compound transport. In the model, material deposition and the resulting contact line pinning are associated with the precipitation of a fraction of the dissolved material. We find three power law regimes for the size of the deposit area as a function of the initial droplet size, dictated by the competition between evaporation, diffusion and the initial compound concentrations in the droplet and the thin film. The strength of the contact line pinning determines the deposition profile of the precipitate, characterised by a pronounced edge and a linearly decaying profile towards the centre of the stain. Our predictions for the concentration profile within the solid substrate resemble patterns found experimentally.Comment: 12 pages, 10 figure

    A Survey on Deep Learning in Medical Image Analysis

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    Deep learning algorithms, in particular convolutional networks, have rapidly become a methodology of choice for analyzing medical images. This paper reviews the major deep learning concepts pertinent to medical image analysis and summarizes over 300 contributions to the field, most of which appeared in the last year. We survey the use of deep learning for image classification, object detection, segmentation, registration, and other tasks and provide concise overviews of studies per application area. Open challenges and directions for future research are discussed.Comment: Revised survey includes expanded discussion section and reworked introductory section on common deep architectures. Added missed papers from before Feb 1st 201
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