Now showing items 11-20 of 185
Determination of the electro-optical coefficient r33 and refractive index of para-substituted poly([gamma]-benzyl--glutamate) derivatives
(Elsevier, 1994-01)
The electro-optical coefficient r33 and refractive index of films of poly([gamma]-benzyl--glutamate) and the p-nitro, p-fluoro and p-trifluoromethyl derivatives were determined as a way to assess the non-linear optical ...
Knowledge Integration in Science Teaching: Analysing Teachers' Knowledge Development
(Kluwer Academic Publishers; Springer Science+Business Media, 2004-03)
This paper tests the utility of a new sociocognitive frame for analysing the development of teachers' knowledge – the knowledge integration perspective (Linn, Eylon, & Davis, in press; Linn & Hsi, 2000). In doing so, the ...
Asset pricing with a factor-arch covariance structure : Empirical estimates for treasury bills
(Elsevier, 1990)
In this paper we suggest using the FACTOR-ARCH model as a parsimonious structure for the conditional covariance matrix of asset excess returns. This structure allows us to study the dynamic relationship between asset risk ...
Analysis of the volatile combustion products of vinyl plastics
(Wiley Subscription Services, Inc., A Wiley Company, 1969-02)
The extensive use of plastics for insulation and building materials has created interest in the possible toxicity of their combustion products. Three poly(vinyl chloride) homopolymers, a vinyl chloride-vinyl acetate ...
Tooling adjustment strategy for acceptable product quality in assembly processes
(John Wiley & Sons, Ltd., 2010-11)
This paper develops an approach to minimize the number of process tooling adjustments and deliver an acceptable fraction of non-conforming products based on given product quality specification limits in assembly processes. ...
Information Systems Knowledge: Foundations, Definitions, and Applications
(Kluwer Academic Publishers; Springer Science+Business Media, 2001-06)
A key component of research within information systems is the use of valid instruments to measure numerous aspects of technology, organizations, and people. Validated instruments exist for many different variables and more ...
Social security health insurance for the informal sector in Nicaragua: a randomized evaluation
(John Wiley & Sons, Ltd., 2010-09)
This article presents the results from an experimental evaluation of a voluntary health insurance program for informal sector workers in Nicaragua. Costs of the premiums as well as enrollment location were randomly allocated. ...
The WALRAS Algorithm: A Convergent Distributed Implementation of General Equilibrium Outcomes
(Kluwer Academic Publishers; Springer Science+Business Media, 1998-08)
The WALRAS algorithm calculates competitive equilibria via a distributed tatonnement-like process, in which agents submit single-good demand functions to market-clearing auctions. The algorithm is asynchronous and decentralized ...
Estimating the effect of a gasoline tax on carbon emissions
(John Wiley & Sons, Ltd, 2011-11)
Recently the proposal has been made to raise gasoline taxes in the United States to curb carbon emissions. The existing literature on the sensitivity of gasoline consumption to changes in price may not be appropriate for ...
Interfacial adhesion and toughening mechanisms in an alloy of polycarbonate/polyethylene
(Elsevier, 1992)
Interfacial adhesion and toughening mechanisms in an alloy of polycarbonate/polyethylene (PC/PE) are investigated using transmission electron microscopy. In contrast to the general speculation, it is found that the PE ...