7,890 research outputs found

    Test Beams and Polarized Fixed Target Beams at the NLC

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    A conceptual program to use NLC beams for test beams and fixed target physics is described. Primary undisrupted polarized beams would be the most simple to use, but for NLC, the disrupted beams are of good enough quality that they could also be used, after collimation of the low energy tails, for test beams and fixed target physics. Pertinent issues are: what is the compelling physics, what are the requirements on beams and running time, and what is the impact on colliding beam physics running. A list of physics topics is given; one topic Moller Scattering is treated in more depth.Comment: 10 pages, 5 figures, Fifth International Linear Collider Workshop (LCWS2000), Fermi National Accelerator Laboratory, Batavia, Illinois, US, October 24-28, 200

    Primary decomposition of the ideal of polynomials whose fixed divisor is divisible by a prime power

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    We characterize the fixed divisor of a polynomial f(X)f(X) in Z[X]\mathbb{Z}[X] by looking at the contraction of the powers of the maximal ideals of the overring Int(Z){\rm Int}(\mathbb{Z}) containing f(X)f(X). Given a prime pp and a positive integer nn, we also obtain a complete description of the ideal of polynomials in Z[X]\mathbb{Z}[X] whose fixed divisor is divisible by pnp^n in terms of its primary components.Comment: Fixed typos in (9) and (12

    Spark Chamber Measurement of the ?+ Lifetime

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    Physic

    Temperature Effects on the Angular Correlation of Positron Annihilation Radiation in Solids

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    Physic

    Histological techniques for marine bivalve mollusks and crustaceans, 2nd edition

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    Investigators at the Cooperative Oxford Laboratory (COL) diagnose and study crustaceans, mollusks, finfish, and a variety of other marine and estuarine invertebrates to assess animal health. This edition updates the Histological Techniques for Marine Bivalve Mollusks manual by Howard and Smith (1983) with additional chapters on molluscan and crustacean techniques. The new edition is intended to serve as a guide for histological processing of shellfish, principally bivalve mollusks and crustaceans. Basically, the techniques included are applicable for histopathological preparation of all marine animals, recognizing however that initial necropsy is unique to each species. Photographs and illustrations are provided for instruction on necropsy of different species to simplify the processing of tissues. Several of the procedures described are adaptations developed by the COL staff. They represent techniques based on principles established for the histopathologic study of mammalian and other vertebrate tissues, but modified for marine and aquatic invertebrates. Although the manual attempts to provide adequate information on techniques, it is also intended to serve as a useful reference source to those interested in the pathology of marine animals. General references and recommended reading listed in the back of the manual will provide histological information on species not addressed in the text

    External sources of clean technology: evidence from the clean development mechanism

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    New technology is fundamental to sustainable development. However, inventors from industrialized countries often refuse technology transfer because they worry about reverse-engineering. When can clean technology transfer succeed? We develop a formal model of the political economy of North–South technology transfer. According to the model, technology transfer is possible if (1) the technology in focus has limited global commercial potential or (2) the host developing country does not have the capacity to absorb new technologies for commercial use. If both conditions fail, inventors from industrialized countries worry about the adverse competitiveness effects of reverse-engineering, so technology transfer fails. Data analysis of technology transfer in 4,894 projects implemented under the Kyoto Protocol’s Clean Development Mechanism during the 2004–2010 period provides evidence in support of the model

    Some Differences Between First And Second Language Learning 1

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/98263/1/j.1467-1770.1962.tb00759.x.pd
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