1,603 research outputs found
The Divine Clockwork: Bohr's correspondence principle and Nelson's stochastic mechanics for the atomic elliptic state
We consider the Bohr correspondence limit of the Schrodinger wave function
for an atomic elliptic state. We analyse this limit in the context of Nelson's
stochastic mechanics, exposing an underlying deterministic dynamical system in
which trajectories converge to Keplerian motion on an ellipse. This solves the
long standing problem of obtaining Kepler's laws of planetary motion in a
quantum mechanical setting. In this quantum mechanical setting, local mild
instabilities occur in the Kelperian orbit for eccentricities greater than
1/\sqrt{2} which do not occur classically.Comment: 42 pages, 18 figures, with typos corrected, updated abstract and
updated section 6.
CASE TECHNOLOGY AS A MEDIATING FACTOR IN ANALYST AND PROGRAMMER JOB OUTCOMES
Information Systems Working Papers Serie
IOS ASSIMILATION STRATEGIES: AN EMPIRICAL APPRAISAL
Interorganizational information systems (IOS) are increasingly relied on to facilitate the
electronic exchange of data among organizations. Though substantive progress by the
research community toward understanding IOS technology has been made, one unattended
issue is understanding more fully the efficacy of alternative management strategies for
assimilating IOS into organizational processes. Referred to here as IOS assimilation
strategies, these strategies may offer to management useful alternatives for planning for and
proceeding with IOS implementation.
Conceptually based on Keen's (1991) notions of "reach" and "range" regarding organizations'
computing infrastructure, two IOS Assimilation Strategies are tested for their comparative
effects on three efficiency and six effectiveness measures. The empirical results, based on data
from forty-eight organizations of the Group Insurance industry and the nonparametric
Friedman test for significance testing, indicate that a significantly different ranking on the
efficiency measures occurs across groups inhering varying strengths of IOS use pursuant to
the alternative IOS Assimilation Strategies. The results suggest that greater efficiency gains
may obtain by pursuing a strategy to extend IOS range over IOS reach. Consequently,
management is advised to weigh carefully which IOS benefits, in terms of efficiency and
effectiveness, are more important for substantiating IOS investments, and to make decisions
regarding IOS implementation accordingly.Information Systems Working Papers Serie
A DISCREPANCY-BASED MEASUREMENT APPROACH FOR DATA INTEGRATION
This paper presents a measurement instrument for diagnosing the level of data integration
at the organization and organization subunit levels. Incorporating consideration for
specific theoretical properties related to data integration into its design, the measurement
instrument relies on a discrepancy (or gap) measure to adequately account for these
properties. Data from forty-eight organizations of the Group Insurance industry are used
to test the reliability and validity of the measurement instrument. The results suggest that
the discrepancy measure, based on the difference between respondents' ideal (i.e.
normative) and actual estimates of data integration, appears to be a valid indicator of data
integration. However the efficacy of using a discrepancy measure, over the simpler use
of its parts, must be considered in light of practical and theoretical considerations.Information Systems Working Papers Serie
Jet array impingement with crossflow-correlation of streamwise resolved flow and heat transfer distributions
Correlations for heat transfer coefficients for jets of circular offices and impinging on a surface parallel to the jet orifice plate are presented. The air, following impingement, is constrained to exit in a single direction along the channel formed by the jet orifice plate and the heat transfer (impingement) surface. The downstream jets are subjected to a crossflow originating from the upstream jets. Impingement surface heat transfer coefficients resolved to one streamwise jet orifice spacing, averaged across the channel span, are correlated with the associated individual spanwise orifice row jet and crossflow velocities, and with the geometric parameters
GENDER DIFFERENCES IN THE INFORMATION SYSTEMS MANAGERIAL RANKS: AN ASSESSMENT OF DISCRIMINATORY PRACTICES
This paper examines the extent to which gender discrimination
is a force effecting the senior managerial ranks of the information
systems (IS) occupation. While the employment trends of women in
the IS occupation is encouraging, we present data which suggests
that IS is not immune to the problems of gender discrimination.
Analyzing data gathered by the Society for Information Management
(SIM), we find several serious problems suggestive of
discriminatory practices. First, a disproportionate majority of
senior IS management is male. Second, women receive lower salaries
than men even when controlling for age, education, job level and
tenure within the organization.Information Systems Working Papers Serie
The Fight Against Money Laundering (2004), and Inflation Targeting
in the World Economy (2003). Authors ’ note: We thank Steve Weisman for very helpful comments on an earlier draft. This revision refl ects the 2011 replacement of Iran’s Oil Stabilization Fund with its National Development Fund as a member of the International Forum of Sovereign Wealth Funds. We have scored the latter as the successor of the former. © Peterson Institute for International Economics. All rights reserved. The term sovereign wealth fund (SWF) had not been coined a decade ago. By 2007, economists and the financial world were alternatively excited about or alarmed by the growing influence of these institutions, though in fact many of them had been around for decades. Politicians in countries in which the funds invested generally welcomed the additional financial resources from abroad while expressing concern about the motivations of investors and what they feared could be threat
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