Acute Bacterial Meningitis in Guatemala City Daniel Olson, MD; James Gaensbauer, MD, MScPH; James Todd, MD; Neal Halsey, MD; Edwin J. Asturias, MD; Pediatric Infectious Diseases, University of Colorado Denver, Aurora, CO; Department of Infectious Disease, Children’s Hospital Colorado/University of Colorado School of Medicine, Aurora, CO; University of Colorado, Denver, CO; Johns Hopkins Bloombe...

pany, Inc., 1956. 207 pp. 5. Kenneth S. Cooper, Clarence W. Sorensen, and Lewis Paul Todd. The Changing Old World. Morristown, New Jersey: Silver Burdett Company, Inc., 1961. 470 pp. 6. Edgar Dale, and Jeanne S. Chall. "A Formula for Predicting Readability." Educa tional Research Bulletin 27: 11-20, 28; Janu ary 1948. 27: 37-54; February 1948. 7. William D. Floyd. An Analysis of the Oral Questi...

It is shown that the Coxeter-Todd lattice is the unique strongly perfect lattice in dimension 12.

Coset enumeration, based on the methods described by Todd and Coxeter, is one of the most important tools for investigating nitely presented groups. Such methods do not, in general, constitute an algorithm. Each problem has to be addressed individually, and determining whether or not an acceptable solution for a diicult problem can be found using given resources requires an empirical approach (...

Interior point methods for semide nite optimization have recently been studied intensively, due to their polynomial complexity and practical e ciency. Many search directions have been proposed to symmetrize the corresponding Newton system. In this paper, we rst introduce a variational principle for de ning the search direction and show that the Nesterov-Todd (NT) direction is optimal under this...

Some 50,000 years ago, our Neanderthal ancestors may have created the first artifacts-bone flutes--to help produce tonal music (Wilford, 1996). About a decade ago, Rumelhart and McClelland (1986) first widely introduced a new set of computational tools--parallel distributed processing (PDP) models of human cognition--that could help us further understand the musical legacy of the past 50 millen...

This paper studies the effects of social network based lending. This is a pervasive phenomenon in most of the developing world. Access to such network capital has an obvious influence on investment. It also influences the pattern of migration since, ceteris paribus, migrants would prefer to be in locations where they have access to their community's lending network. We show that under reasonabl...