In this paper I present an improved least-squares joint imaging algorithm for primary reflections and pegleg multiples (LSJIMP) which utilizes improved amplitude modeling and imaging operators presented in two companion papers in this report (Brown, 2003b,a). This algorithm is applied to the entire Mississippi Canyon 2-D multiples test dataset and demonstrates a good capability to separate pegl...

Receiver-side water-column multiples acquired with ocean-bottom seismic sensors can be used for elastic imaging of the subsurface, which can provide additional information relative to more conventional acoustic imaging. In this paper, we generalize the procedures for elastic migration using water-column multiples. We first separate receiver-side water-column multiples from primaries in recorded...

We examine the valuation performance of a comprehensive list of value drivers and find that multiples derived from forward earnings explain stock prices remarkably well: pricing errors are within 15 percent of stock prices for about half our sample. In terms of relative performance, the following general rankings are observed consistently each year: forward earnings measures are followed by his...

L2 learners’ individual differences are crucial factors that deserve attention in L2 education. Focusing on 2 main areas of individual differences (i.e., field (in)dependence and multiple intelligences), this study explored their relationships with L2 reading performance. Participants were 64 TEFL undergraduates and postgraduates. To assess the participats’ degree of field (in)dependence and mu...

OBJECTIVES To examine the risk of mortality and major morbidities in extremely preterm multiple gestation infants compared with singletons over time. METHODS This is a retrospective study of 15,402 infants born ≤27 weeks' gestation, admitted to NICUs in the Australian and New Zealand Neonatal Network from 1995 to 2009. Mortality and major morbidities were compared between singletons and multi...

Learning characteristics vary for each individual learner. Research suggests that knowledge is processed and represented in different ways and that students prefer to use different types of resources in distinct ways. Adapting learning to meet the various individual differences of the students is a real challenge. Thus, the present study aimed at investigating the effect of designing an adaptiv...