18,189 research outputs found

    PRICE ADJUSTMENTS IN CHERRY MARKETS

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    Buyers of cherries trade initially without inspection. Upon receipt, buyers sometimes seek to renegotiate the earlier agreements. Empirical results suggest that changing market conditions, fruit quality, and characteristics of the trading partners significantly affect the probability that a trade is renegotiated.Demand and Price Analysis,

    Breaking News on Fragile Sites in Cancer

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    Chromosome rearrangements in B lymphocytes can be initiated by AID-associated double strand breaks (DSBs), with others arising by unclear mechanisms. A recent study by Barlow and colleagues in Cell reports on genomic regions, termed early replicating fragile sites, that may explain many AID-independent DSBs and creates a compelling link between replication stress, transcription, and chromosome rearrangements

    Nuclear fragmentation studies for microelectronic application

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    A formalism for target fragment transport is presented with application to energy loss spectra in thin silicon devices. Predicted results are compared to experiments with the surface barrier detectors of McNulty et al. The intranuclear cascade nuclear reaction model does not predict the McNulty experimental data for the highest energy events. A semiempirical nuclear cross section gives an adequate explanation of McNulty's experiments. Application of the formalism to specific electronic devices is discussed

    International Environmental Management: Some Preliminary Thoughts

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    Virtual workplaces : when metaphors breakdown

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    Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1998.Includes bibliographical references (leaves 79-81).Our model of work is shaped by the places we choose to work and the tools we choose to work with. As we introduce new technologies and build new environments our model is changing. Today's virtual workplaces are grounded in models of work that have been reformed from our experiences using current technology in physical workspace. However we are discovering opportunities and possibilities for work in collaborative, virtual environments that question physical models. Emerging patterns of distributed collaboration in persistent virtual environments are changing the way we work in time and space, recasting our notion of workplace. Virtual workplaces are interpreted and experienced through metaphors that describe a space of potential for work occurrences. Through the lens of metaphors, this research focuses on breakdowns between collaborative work and the environment in which work occurs. If what we understand and predict is based on what we already know, then by examining the breakdowns between design and use of collaborative environments we can illuminate the space of possibilities for collaborative work.by Thomas W.I. Gallemore.M.S

    Building from the Ground Up: Creating Effective Programs to Mentor Children of Prisoners (The Amachi Model)

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    Drawing from P/PVs five years of hands-on experience designing and implementing Amachi programs around the country, Building From The Ground Up describes best practices for planning, developing and managing a mentoring-children-of-prisoners program. This guidebook is essential for learning the professional procedures, standards and administrative tools required to have an effective program

    Precise numerical results for limit cycles in the quantum three-body problem

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    The study of the three-body problem with short-range attractive two-body forces has a rich history going back to the 1930's. Recent applications of effective field theory methods to atomic and nuclear physics have produced a much improved understanding of this problem, and we elucidate some of the issues using renormalization group ideas applied to precise nonperturbative calculations. These calculations provide 11-12 digits of precision for the binding energies in the infinite cutoff limit. The method starts with this limit as an approximation to an effective theory and allows cutoff dependence to be systematically computed as an expansion in powers of inverse cutoffs and logarithms of the cutoff. Renormalization of three-body bound states requires a short range three-body interaction, with a coupling that is governed by a precisely mapped limit cycle of the renormalization group. Additional three-body irrelevant interactions must be determined to control subleading dependence on the cutoff and this control is essential for an effective field theory since the continuum limit is not likely to match physical systems ({\it e.g.}, few-nucleon bound and scattering states at low energy). Leading order calculations precise to 11-12 digits allow clear identification of subleading corrections, but these corrections have not been computed.Comment: 37 pages, 8 figures, LaTeX, uses graphic

    Hydrology of Southwestern Connecticut

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    Guidebook for field trips in Connecticut: New England Intercollegiate Geological Conference 60th annual meeting, Yale University, New Haven, Connecticut, October 25-27, 1968: Trip B-
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