16,207 research outputs found

    The Mine Shaft

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    Entrepreneurial Impact: The Role of MIT

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    Presents an analysis of firms founded by Massachusetts Institute of Technology (MIT) alumni -- revenues, employees, spending on marketing and research and development, and type of firm -- by state to quantify MIT's entrepreneurial impact

    Orientation-dependent pseudomorphic growth of InAs for use in lattice-mismatched mid-infrared photonic structures

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    In this study, InAs was deposited on GaAs (100) and GaAs (111)B 2 degrees towardssubstrates for the purpose of differentiating the InAs growth mode stemming from strain and then analyzed using in-situ reflection high energy electron diffraction, scanning electron microscopy, Raman spectroscopy, reflectance spectroscopy, and atomic force microscopy. The procession of InAs deposition throughout a range of deposition conditions results in assorted forms of strain relief revealing that, despite lattice mismatch for InAs on GaAs (approximately 7%), InAs does not necessarily result in typical quantum dot/wire formation on (111) surfaces, but instead proceeds two-dimensionally due primarily to the surface orientation

    Regularly varying probability densities

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    The convolution of regularly varying probability densities is proved asymptotic to their sum, and hence is also regularly varying. Extensions to rapid variation, O-regular variation, and other types of asymptotic decay are also given

    Does the Fed cause Christmas?

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    A discussion of the relationship between money and output, with emphasis on the possibility that changes in output precede changes in money.Money supply ; Business cycles

    Interstellar lines in the spectrum of supernova 1987a

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    The primary interest was to analyze the interstellar lines produced by gases along the line of sight which resides in the galactic plane and halo, as well as material in the Large Magellanic Cloud or the immediate environment of the supernovae. The ionization and fine-structure excitation of assorted atoms were intrepreted. The goal was to learn more about conditions in various regions of space and identify the probable origins for some velocity components whose locations were uncertain

    Money, inflation and sectoral shifts

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    A presentation of a sectoral-shifts model with money that explains the short-run Phillips curve and predicts a long-run positive relationship between inflation and unemployment.Unemployment ; Inflation (Finance) ; Monetary theory
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