1,105 research outputs found

    Upward Mobility in the American Mountain West

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    Upward economic and social mobility is an intrinsic element of American society. Data from the Equality of Opportunity Project (EOP) demonstrates that upward mobility is a critical issue for our nation’s metros. An analysis of Mountain West metros and the performances of colleges and universities in this region reveal how the differing economic, demographic, and social characteristics affect mobility. This brief explores upward mobility rates, measures of diversity, levels of domestic and foreign migration, and students’ family household income and their eventual individual incomes. The comparison of postsecondary institutions in Mountain West metros serves as a microcosm to better understand how metros and their universities can best serve our nation’s ever diversifying population

    Bayesian models for the determination of resonant frequencies in a DI diesel engine

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    A time series method for the determination of combustion chamber resonant frequencies is outlined. This technique employs the use of Markov-chain Monte Carlo (MCMC) to infer parameters in a chosen model of the data. The development of the model is included and the resonant frequency is characterised as a function of time. Potential applications for cycle-by-cycle analysis are discussed and the bulk temperature of the gas and the trapped mass in the combustion chamber are evaluated as a function of time from resonant frequency information

    Light Elements and Cosmic Rays in the Early Galaxy

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    We derive constraints on the cosmic rays responsible for the Be and part of the B observed in stars formed in the early Galaxy: the cosmic rays cannot be accelerated from the ISM; their energy spectrum must be relatively hard (the bulk of the nuclear reactions should occur at >>30 MeV/nucl); and only 1049^{49} erg/SNII in high metallicity, accelerated particle kinetic energy could suffice to produce the Be and B. The reverse SNII shock could accelerate the particles.Comment: 5 pages LATEX using paspconf.sty file with one embedded eps figure using psfig. In press, Proc. Goddard High Resolution Spectrograph Symposium, PASP, 199

    A survey of science reporting in representative American newspapers

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    Thesis (M.S.)--Boston Universit

    Thought imitates life : the case of John Stuart Mill

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    In this essay, I relate material in the original published work – John Stuart Mill – Victorian Firebrand (Atlantic Books, 2007) to the claim that the central features of Mill’s thought can be seen more clearly through a biographical lens. The original contribution of the main work lies in the excavation and application of biographical material to the development of Mill’s philosophy. The poor development of Mill’s utilitarianism results in part from a lack of personal investment and aspiration. Mill’s motivation was to atone for earlier, premature assaults on Jeremy Bentham’s philosophy - rather than to develop it further. As a consequence, his mature utilitarianism is hard to integrate with his liberalism, which was where his primary interest lay. Elements of Mill’s liberalism also bear a biographical imprint. The central emphasis on self-creation in Mill’s liberal ethic results, in part, from his own ‘crisis’ and subsequent departure from the rationalist utilitarianism of his father and Bentham. Similarly, Mill’s focus on individuality stemmed in part from a concern to demonstrate he was not, himself, a ‘made man’. Openmindedness became a central liberal virtue, for Mill, following his criticism of Bentham’s (and his father’s) narrowness of thought. Character was also essential to liberty, since only those of strong character could create themselves and express their individuality, rather than succumbing to custom. Mill’s partner and later wife, Harriet Taylor Mill, had an influence on Mill’s thought. The experience of gossip and ostracism, in the years before their marriage, strengthened Mill’s opposition to the ‘despotism of custom’. More substantively, Harriet’s views on socialism, the ballot and feminism clearly influenced Mill’s own treatment. Without Harriet, he would have been a less committed socialist and feminist – and would have remained a supporter of the right to vote in secret

    Sensitivity of LDEF foil analyses using ultra-low background germanium vs. large NaI(Tl) multidimensional spectrometers

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    Cobalt foils and stainless steel samples were analyzed for induced Co-60 activity with both an ultra-low background germanium gamma-ray spectrometer and with a large NaI(Tl) multidimensional spectrometer, both of which use electronic anticoincidence shielding to reduce background counts resulting from cosmic rays. Aluminum samples were analyzed for Na-22. The results, in addition to the relative sensitivities and precisions afforded by the two methods, are presented
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