A Global Measure of Perceived Stress
This paper presents evidence from three samples, two of college students and one of participants in a community smoking-cessation program, for the reliability and validity of a ...
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A New Approach to Linear Filtering and Prediction Problems
The classical filtering and prediction problem is re-examined using the Bode-Shannon representation of random processes and the “state-transition” method of analysis of dynamic ...
Molecular dynamics with coupling to an external bath
In molecular dynamics (MD) simulations the need often arises to maintain such parameters as temperature or pressure rather than energy and volume, or to impose gradients for stu...
A Novel Coronavirus from Patients with Pneumonia in China, 2019
In December 2019, a cluster of patients with pneumonia of unknown cause was linked to a seafood wholesale market in Wuhan, China. A previously unknown betacoronavirus was discov...
Preparation of Graphitic Oxide
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation of Graphitic OxideWilliam S. Hummers Jr. and Richard E. OffemanCite this: J. Am. Chem. Soc. 1958, 80, 6, 1339Publication ...
Particle mesh Ewald: An <i>N</i>⋅log(<i>N</i>) method for Ewald sums in large systems
An N⋅log(N) method for evaluating electrostatic energies and forces of large periodic systems is presented. The method is based on interpolation of the reciprocal space Ewald su...
Bowling alone: the collapse and revival of American community
BOWLING ALONE warns Americans that their stock of social capital, the very fabric of their connections with each other, has been accelerating down. Putnam describes the resultin...
The Pricing of Options and Corporate Liabilities
If options are correctly priced in the market, it should not be possible to make sure profits by creating portfolios of long and short positions in options and their underlying ...
Institutions, Institutional Change and Economic Performance
Continuing his groundbreaking analysis of economic structures, Douglass North develops an analytical framework for explaining the ways in which institutions and institutional ch...