Arthur H. Gilbert

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We reconstruct the gravitational lensing convergence signal from cosmic microwave background (CMB) polarization data taken by the Polarbear experiment and cross-correlate it with cosmic infrared background maps from the Herschel satellite. From the cross spectra, we obtain evidence for gravitational lensing of the CMB polarization at a statistical(More)
In January 2006, Armstrong Atlantic State University(AASU) offered its first course in Information Security. At the same time, the university received funding for its Cyber Security Research Institute, a non-academic unit closely related to and funded by the U.S. Department of Homeland Security. The establishment of this research institute led the(More)
Employing information systems (IS) issues which have appeared in a series of MIS Quarterly articles and a scale for the perceived environmental uncertainty (PEU) construct, the authors surveyed CEOs and senior information systems managers to examine the relationship between PEU and top IS issues. The results showed different rankings between firms reporting(More)
Business executives often do not understand the environment in which the security function operates and what questions they should be asking their network administrators and security personnel. The purpose of this article is to address this environment and the issues from the perspective of senior management. It does not address the technical details of(More)
Using data from 161 Chinese cities, this paper investigates the effects of various dimensions of urban spatial structure on the ownership and commute mode split of automobile. Results confirm the positive effects of city size on auto ownership and mode split and the negative effect of density on auto ownership. Echoing a small number of studies, this(More)
Infrared and Raman spectroscopies have been used to monitor the [2 + 2] photodimerisation reactions of alpha-trans-cinnamic acid and of a number of its derivatives. The principal changes observed in the spectra upon dimerisation are decay of a band around 1637 cm(-1), which is assigned to v(C=C) of the ethene bond of the monomer, and growth of bands just(More)
Gravitational lensing due to the large-scale distribution of matter in the cosmos distorts the primordial cosmic microwave background (CMB) and thereby induces new, small-scale B-mode polarization. This signal carries detailed information about the distribution of all the gravitating matter between the observer and CMB last scattering surface. We report the(More)
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