9,645 research outputs found

    Bavinck\u27s The riddle of life (Book Review)

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    A review of Bavinck, J. H. (2016). The riddle of life (B. Hielma, Trans.). Grand Rapids, MI: Eerdmans. 102 pp. $20.00. ISBN 978080287333

    Root and Neal\u27s The surprising imagination of C. S. Lewis (Book Review)

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    A review of Root, J. & Neal, M. (2015). The surprising imagination of C. S. Lewis. Nashville, TN: Abingdon Press. 270 pp. $34.99. ISBN 978142679510

    Biofilm monitoring coupon system and method of use

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    An apparatus and method is disclosed for biofilm monitoring of a water distribution system which includes the mounting of at least one fitting in a wall port of a manifold in the water distribution system with a passage through the fitting in communication. The insertion of a biofilm sampling member is through the fitting with planar sampling surfaces of different surface treatment provided on linearly arrayed sample coupons of the sampling member disposed in the flow stream in edge-on parallel relation to the direction of the flow stream of the manifold under fluid-tight sealed conditions. The sampling member is adapted to be aseptically removed from or inserted in the fitting and manifold under a positive pressure condition and the fitting passage sealed immediately thereafter by appropriate closure means so as to preclude contamination of the water distribution system through the fitting. The apparatus includes means for clamping the sampling member and for establishing electrical continuity between the sampling surfaces and the system for minimizing electropotential effects. The apparatus may also include a plurality of fittings and sampling members mounted on the manifold to permit extraction of the sampling members in a timed sequence throughout the monitoring period

    A further view on current account, capital account and Target2 balances: Assessing the effect on capital structure and economic welfare

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    In this paper, we first present the state and the development of the European capital and current account imbalances. We demonstrate how large the heterogeneity among European countries is and that clustering here different types of countries is possible, but that it leads to different groupings than what has been labeled the PIGS or better GIPS countries on the one side and the GLNF countries on the other side. The same applies when it comes to cluster countries according to the debt ratio criterion. Hereafter, we put forward our own description of the mentioned ECB implicit financing scheme(s), among other things extending and complementing the recent base money market (supply and demand) analysis given by H.-W. Sinn and T. WollmershÀuser (2011). The core of the paper consists in a modified model of the New Austrian School of Economics - in the tradition of F. A. v. Hayek (1929, 1931) and in the vein of R. M. Garrison (2002) - which enables us to discuss the current distortions introduced by the Target2 credit channel into the capital markets of selected EMU countries and to detect its most important economic consequences. This part of the paper ends with a static welfare evaluation. Finally, we come up with some conclusions and suggestions for economic policy. --Target2 balances,current account deficits,ECB monetary policy,New Austrian Economics

    Money, Capital Markets and Welfare: An Analysis of the Effects of Target2 Balances

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    Schulden; Finanzmarktkrise; Target Zone; Schuldenkrise; EuropÀische Wirtschafts- und WÀhrungsunion

    Technology development for lunar base water recycling

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    This paper will review previous and ongoing work in aerospace water recycling and identify research activities required to support development of a lunar base. The development of a water recycle system for use in the life support systems envisioned for a lunar base will require considerable research work. A review of previous work on aerospace water recycle systems indicates that more efficient physical and chemical processes are needed to reduce expendable and power requirements. Development work on biological processes that can be applied to microgravity and lunar environments also needs to be initiated. Biological processes are inherently more efficient than physical and chemical processes and may be used to minimize resupply and waste disposal requirements. Processes for recovering and recycling nutrients such as nitrogen, phosphorus, and sulfur also need to be developed to support plant growth units. The development of efficient water quality monitors to be used for process control and environmental monitoring also needs to be initiated

    ASTP chemical and microbiological analysis of potable water

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    The Apollo-Soyuz Test Project procedures for potable water system servicing and the results of preflight and postflight chemical and microbiological analyses of the water are discussed. Tables show results of the analyses. The effectiveness of the water system is evaluated

    Regenerable biocide delivery unit

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    A method and apparatus are disclosed for maintaining continuous, long-term microbial control in the water supply for potable, hygiene, and experimental water for space activities, as well as treatment of water supplies on Earth. The water purification is accomplished by introduction of molecular iodine into the water supply to impart a desired iodine residual. The water is passed through an iodinated anion exchange resin bed. The iodine is bound as I-(sub n) at the anion exchange sites and releases I(sub 2) into the water stream flowing through the bed. The concentration of I(sub 2) in the flowing water gradually decreases and, in the prior art, the ion-exchange bed has had to be replaced. In a preferred embodiment, a bed of iodine crystals is provided with connections for flowing water therethrough to produce a concentrated (substantially saturated) aqueous iodine solution which is passed through the iodinated resin bed to recharge the bed with bound iodine. The bed of iodine crystals is connected in parallel with the iodinated resin bed and is activated periodically (e.g., by timer, by measured flow of water, or by iodine residual level) to recharge the bed. Novelty resides in the capability of inexpensively and repeatedly regenerating the ion-exchange bed in situ
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