Improved tetrahedron method for Brillouin-zone integrations
Several improvements of the tetrahedron method for Brillouin-zone integrations are presented. (1) A translational grid of k points and tetrahedra is suggested that renders the r...
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1,098 publications
Observation of a single-beam gradient force optical trap for dielectric particles
Optical trapping of dielectric particles by a single-beam gradient force trap was demonstrated for the first reported time. This confirms the concept of negative light pressure ...
Does Active Learning Work? A Review of the Research
Abstract This study examines the evidence for the effectiveness of active learning. It defines the common forms of active learning most relevant for engineering faculty and crit...
Historical Overfishing and the Recent Collapse of Coastal Ecosystems
Ecological extinction caused by overfishing precedes all other pervasive human disturbance to coastal ecosystems, including pollution, degradation of water quality, and anthropo...
Linear methods in band theory
Two approximate methods for solving the band-structure problem in an efficient and physically transparent way are presented and discussed in detail. The variational principle fo...
The Astropy Project: Building an Open-science Project and Status of the v2.0 Core Package<sup>*</sup>
Abstract The Astropy Project supports and fosters the development of open-source and openly developed Python packages that provide commonly needed functionality to the astronomi...
Core capabilities and core rigidities: A paradox in managing new product development
This paper examines the nature of the core capabilities of a firm, focusing in particular on their interaction with new product and process development projects. Two new concept...
Random early detection gateways for congestion avoidance
The authors present random early detection (RED) gateways for congestion avoidance in packet-switched networks. The gateway detects incipient congestion by computing the average...
Nanotube Molecular Wires as Chemical Sensors
Chemical sensors based on individual single-walled carbon nanotubes (SWNTs) are demonstrated. Upon exposure to gaseous molecules such as NO 2 or NH 3 , the electrical resistance...
Corporate Social Responsibility
There is an impressive history associated with the evolution of the concept and definition of corporate social responsibility (CSR). In this article, the author traces the evolu...
Breaking the diffraction resolution limit by stimulated emission: stimulated-emission-depletion fluorescence microscopy
We propose a new type of scanning fluorescence microscope capable of resolving 35 nm in the far field. We overcome the diffraction resolution limit by employing stimulated emiss...
A Powder Technique for the Evaluation of Nonlinear Optical Materials
An experimental technique using powders is described which permits the rapid classification of materials according to (a) magnitude of nonlinear optical coefficients relative to...