9,791 research outputs found
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The Legalization of the Workplace
This study uses longitudinal data on nearly 300 American employers over the period 1955-85 to analyze the adoption of disciplinary hearings and grievance procedures for nonunion salaried and hourly employees. Hypotheses are developed from an institutional perspective that focuses, first, on uncertainty arising from government mandates concerning equal employment opportunity and affirmative action and, second, on the role of the human relations professions in constructing employment-relations law and prescribing models of compliance. Event-history techniques are used to test these hypotheses against competing arguments concerning the internal structure and labor market position of employing organizations. Results on all outcomes strongly support the institutionalist model.Sociolog
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Equal Opportunity Law and the Construction of Internal Labor Markets
Internal labor markets have been explained with efficiency and control arguments; however, retrospective event-history data from 279 organizations suggest that federal Equal Employment Opportunity (EEO) law was the force behind the spread of formal promotion mechanisms after 1964. The findings highlight the way in which American public policy, with its broad outcome-oriented guidelines for organizations, stimulates managers to experiment with compliance mechanisms with an eye to judicial sanction. In response to EEO legislation and case law, personnel managers devised and diffused employment practices that treat all classes of workers as ambitious and achievement oriented in the process of formalizing and rationalizing promotion decisions.Sociolog
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Neo-Institutional Theory and Organization Studies: A Mid-Life Crisis?
We trace the development of neo-institutional theory in Organization Studies from a marginal topic to the dominant theory. We show how it has evolved from infancy, through adolescence and early adulthood to being a fully mature theory, which we think is now facing a mid-life crisis. Some of the features of this mid-life crisis include over-reach, myopia, tautology, pseudo-progress and re-inventing the wheel. To address these problems, we argue that institutional theorists should limit the range of the concept, sharpen their lens, avoid tautologies and problematize the concept. By doing this, we think institutional theorists could develop a narrower and more focused conception of institutions
A first-principles study of oxygen vacancy pinning of domain walls in PbTiO3
We have investigated the interaction of oxygen vacancies and 180-degree
domain walls in tetragonal PbTiO3 using density-functional theory. Our
calculations indicate that the vacancies do have a lower formation energy in
the domain wall than in the bulk, thereby confirming the tendency of these
defects to migrate to, and pin, the domain walls. The pinning energies are
reported for each of the three possible orientations of the original Ti-O-Ti
bonds, and attempts to model the results with simple continuum models are
discussed.Comment: 8 pages, with 3 postscript figures embedded. Uses REVTEX and epsf
macros. Also available at
http://www.physics.rutgers.edu/~dhv/preprints/lh_dw/index.htm
Mash Test No. 3-10 of a Non-Proprietary, High-Tension Cable Median Barrier for Use in 6H:1V V-Ditch (Test No. MWP-8)
The Midwest States Pooled Fund Program has been developing a prototype design for a non-proprietary, high-tension cable median barrier for use in a 6H:1V V-ditch. This system incorporates four evenly spaced cables, Midwest Weak Posts (MWP) spaced at 8 to 16 ft (2.4-4.9 m) intervals, and a bolted, tabbed bracket to attach three or four cables to the sides of each post. According to the Manual for Assessing Safety Hardware (MASH) testing matrix for cable barriers installed within a 6H:1V median V-ditch, a series of eight full-scale tests are required to evaluate the safety performance of a system. A ninth test is required to establish the working width for the systems with variable post spacing.
Several previous tests have failed due to posts penetrating the occupant compartment. In order to mitigate this behavior, a modified MWP was designed. Test no. MWP-8 was conducted on the modified barrier system, consisting of MWPs with rounded top edges and a Ÿ-in. (19-mm) diameter weakening hole at the groundline. This test was conducted according to MASH test designation no. 3-10 and utilized an 1100C passenger car impacting the barrier on a level terrain. The vehicle was contained by the system. Through the initial two vehicle crossover events across the barrier and posts, no floorpan tearing was observed. During the third impact series with the posts, post penetration into the occupant compartment and floorpan tearing was observed. Therefore, test no. MWP-8 was deemed unacceptable
A Large, Uniform Sample of X-ray Emitting AGN from the ROSAT All-Sky and Sloan Digital Sky Surveys: the Data Release 5 Sample
We describe further results of a program aimed to yield ~10^4 fully
characterized optical identifications of ROSAT X-ray sources. Our program
employs X-ray data from the ROSAT All-Sky Survey (RASS), and both optical
imaging and spectroscopic data from the Sloan Digital Sky Survey (SDSS).
RASS/SDSS data from 5740 deg^2 of sky spectroscopically covered in SDSS Data
Release 5 (DR5) provide an expanded catalog of 7000 confirmed quasars and other
AGN that are probable RASS identifications. Again in our expanded catalog, the
identifications as X-ray sources are statistically secure, with only a few
percent of the SDSS AGN likely to be randomly superposed on unrelated RASS
X-ray sources. Most identifications continue to be quasars and Seyfert 1s with
15<m<21 and 0.01<z<4; but the total sample size has grown to include very
substantial numbers of even quite rare AGN, e.g., now including several
hundreds of candidate X-ray emitting BL Lacs and narrow-line Seyfert 1
galaxies. In addition to exploring rare subpopulations, such a large total
sample may be useful when considering correlations between the X-ray and the
optical, and may also serve as a resource list from which to select the "best"
object (e.g., X-ray brightest AGN of a certain subclass, at a preferred
redshift or luminosity) for follow-on X-ray spectral or alternate detailed
studies.Comment: Accepted for publication in AJ; 32 pages, including 11 figures, and 6
example table
Governmental Context Determines Institutional Value: Independently Certified Performance and Failure in the Spanish Newspaper Industry
Many societies demand that independent professionals (e.g. auditors) certify the performance of firms. The value placed on such certification (i.e. the public perception of reliability/unreliability that may impact on an organization's success/failure) is not uniform, however, but contingent upon changing political contexts. This study presents and analyses data on the entire population of newspapers in Spain from 1966 to 1993, a time of peaceful transition from military dictatorship to capitalist democracy. Our results highlight the contingent nature of institutional life, demonstrating how changes in political contexts are associated with varying understandings of institutions. In particular, our findings support the prediction that, under a dictatorship, independently certified performance is not instrumental in organizational success or failure whereas, in a modern democracy, the certification process has a positive effect on the survival chances of firms.Publicad
Zone-plate focusing of Bose-Einstein condensates for atom optics and erasable high-speed lithography of quantum electronic components
We show that Fresnel zone plates, fabricated in a solid surface, can sharply
focus atomic Bose-Einstein condensates that quantum reflect from the surface or
pass through the etched holes. The focusing process compresses the condensate
by orders of magnitude despite inter-atomic repulsion. Crucially, the focusing
dynamics are insensitive to quantum fluctuations of the atom cloud and largely
preserve the condensates' coherence, suggesting applications in passive
atom-optical elements, for example zone plate lenses that focus atomic matter
waves and light at the same point to strengthen their interaction. We explore
transmission zone-plate focusing of alkali atoms as a route to erasable and
scalable lithography of quantum electronic components in two-dimensional
electron gases embedded in semiconductor nanostructures. To do this, we
calculate the density profile of a two-dimensional electron gas immediately
below a patch of alkali atoms deposited on the surface of the nanostructure by
zone-plate focusing. Our results reveal that surface-induced polarization of
only a few thousand adsorbed atoms can locally deplete the electron gas. We
show that, as a result, the focused deposition of alkali atoms by existing zone
plates can create quantum electronic components on the 50 nm scale, comparable
to that attainable by ion beam implantation but with minimal damage to either
the nanostructure or electron gas.Comment: 13 pages, 7 figure
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Context and HRM: theory, evidence, and proposals
Human resource management (HRM) has paid insufficient attention to the impact of context. In this article, we outline the need for HRM to take full account of context, particularly national context, and to use both cultural theories and, particularly, institutional theories to do that. We use research publications that utilize the Cranet data to show how that can be done. From that evidence, we develop a series of proposals for further context-based research in HRM
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