Solar Neutrinos with Three Flavor Mixings

The recent 71Ga solar neutrino observation is combined with the 37Cl and Kamiokande-II observations in an analysis for neutrino masses and mixings. The allowed parameter region is found for matter enhanced mixings among all three neutrino flavors. Distortions of the solar neutrino spectrum unique to three flavors are possible and may be observed in continuing and next generation experiments.Comment: August 1992 (Revised) PURD-TH-92-

Advances in multispectral and hyperspectral imaging for archaeology and art conservation

Multispectral imaging has been applied to the field of art conservation and art history since the early 1990s. It is attractive as a noninvasive imaging technique because it is fast and hence capable of imaging large areas of an object giving both spatial and spectral information. This paper gives an overview of the different instrumental designs, image processing techniques and various applications of multispectral and hyperspectral imaging to art conservation, art history and archaeology. Recent advances in the development of remote and versatile multispectral and hyperspectral imaging as well as techniques in pigment identification will be presented. Future prospects including combination of spectral imaging with other noninvasive imaging and analytical techniques will be discussed

The Sudbury Neutrino Observatory

The Sudbury Neutrino Observatory is a second generation water Cherenkov detector designed to determine whether the currently observed solar neutrino deficit is a result of neutrino oscillations. The detector is unique in its use of D2O as a detection medium, permitting it to make a solar model-independent test of the neutrino oscillation hypothesis by comparison of the charged- and neutral-current interaction rates. In this paper the physical properties, construction, and preliminary operation of the Sudbury Neutrino Observatory are described. Data and predicted operating parameters are provided whenever possible.Comment: 58 pages, 12 figures, submitted to Nucl. Inst. Meth. Uses elsart and epsf style files. For additional information about SNO see http://www.sno.phy.queensu.ca . This version has some new reference

The effect of economic change and elite framing on support for welfare state retrenchment: A survey experiment

How do economic downturns affect citizens’ support for welfare state retrenchment? Existing observational studies fail to isolate the effect of economic conditions and the effect of elite framing of these conditions. We therefore designed a survey experiment to evaluate how economic change in conjunction with different elite frames impact citizens’ support for welfare state retrenchment. We hypothesise and demonstrate that the effects of these frames differ by income group and partisanship. Our survey experiment - carried out in the United Kingdom - demonstrates that poor economic prospects generally motivate support for unemployment benefits vis-à-vis deficit reduction. Emphasis on inequality does not change this picture. Emphasis on government debt and deficits increases support for retrenchment compared with objective information. We find support for the hypothesis that partisans are less responsive to the economy than independents. However, income differences are a surprisingly weak moderator of our treatments. We derive two main conclusions: first, elite frames significantly influence the effect of economic change on welfare state preferences. Second, party identification is crucial to understand individual differences in welfare state preferences and should receive more attention in future research