Disputes concerning global labor practices are at the core of contemporary debates regarding globalization. Critics seek regulations restricting the use of sweatshop labor. Economists retort that such regulations will harm the world’s poor. However, insufficient attention has been paid to those companies that are “positive deviants” with respect to their global labor practices. In this essay, w...

BACKGROUND Studies that have combined accelerometers and global positioning systems (GPS) to identify walking have done so in carefully controlled conditions. This study tested algorithms for identifying walking trips from accelerometer and GPS data in free-living conditions. The study also assessed the accuracy of the locations where walking occurred compared with what participants reported in...

M. S. Torn, A. Chabbi, P. Crill, P. J. Hanson, I. A. Janssens, Y. Luo, C. H. Pries, C. Rumpel, M. W. I. Schmidt, J. Six, M. Schrumpf, and B. Zhu Earth Sciences Division, Berkeley Lab, and UC Berkeley, Berkeley, CA 94720, USA INRA URP3F, 86600 Lusignan, France Department of Geological Sciences, Stockholm University, 106 91 Stockholm, Sweden Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA...

The LOCKSS digital preservation technology collects, preserves and disseminates content in peer-to-peer networks. Many such networks are in use. The Global LOCKSS Network (GLN) is an open network with many nodes in which libraries preserve academic journals and books that they purchase. The CLOCKSS network is a closed network, managed by a non-profit consortium of publishers and libraries to fo...

Long period longitudinal oscillations of a flaring coronal loop are studied numerically. In the recent work of Nakariakov et al. (2004) it has been shown that the time dependence of density and velocity in a flaring loop contain pronounced quasi-harmonic oscillations associated with the 2nd harmonic of a standing slow magnetoacoustic wave. In this work we investigate the physical nature of thes...

Carrier phase ambiguity resolution is the key to fast and high precision GPS kinematic positioning. Critical in the application of ambiguity resolution is the quality of the computed integer ambiguities. Unsuccessful ambiguity resolution, when passed unnoticed, will too often lead to unacceptable errors in the positioning results. In order to describe the quality of the integer ambiguities, the...

We designed a tabletop brainwriting interface to examine the effects of time pressure and social pressure on the creative performance. After positioning this study with regard to creativity research and human activity in dynamic environments, we present our interface and experiment. Thirty-two participants collaborated (by groups of four) on the tabletop brainwriting task under four conditions ...

This paper introduces experiences with mobile positIOning data in the web-based tourism management and monitoring system: "Positium Barometer". The system has been developed for tourism enterprises, public authorities, scientists and planners to obtain statistical overviews and standardized analyses about the space-time movement of tourists. Positium Barometer uses passive mobile positioning da...

It is known that both code and carrier-phase multipath is currently one of a few remaining obstacles against high precision real time positioning. It easily leads to incorrect ambiguity resolution and causes cm-order fluctuations of positioning. If the multipath error in pseudorange fluctuates largely, the initial ambiguity for the satellite is biased and its search space can be enlarged. As a ...

Globally people are living longer. The elderly, defined as people over 65 for the purpose of this study, have recognised physical and cognitive limitations which can lead to their marginalisation as far as information and communication technology is concerned. To enable the aging population to live productively and independently, their technological needs, expectations and limitations warrant i...