We apply a simple linear transform, the along-track second derivative, to four years of scalar and vectorial data from the CHAMP satellite.This transform, reminiscent of techniques used in the interpretation of aeromagnetic surveys, is applied either to the geocentric spherical components of Shirt the field or to its intensity.After averaging in ti
A recent road cut through a Dammam Formation outcrop on the Dammam Dome in Dhahran, Saudi Arabia, exposed an array of open fractures and gypsum-filled veins.The discontinuities were mostly contained within the Saila Shale member and consisted of horizontal, vertical, and inclined extensional fractures, most of which were filled with gypsum.The vein
OBJECTIVE: To assess the degree to which the Chinese people are protected from catastrophic household expenditure and impoverishment from medical expenses and to explore the health system and structural factors influencing the first of these outcomes.METHODS: Data were derived from the Fourth National Health Service Survey.An analysis of catastroph
Abstract Background The associations of pesticide exposure with disease outcomes are estimated without the benefit of a randomized design.For this reason and others, these studies are susceptible to systematic errors.I analyzed studies of the associations between alachlor and glyphosate exposure and cancer incidence, both derived from the Agricultu