Perinatal Epidemiology Unit. A working group on HIV in pregnancy, composed of staff from the World Health Organization’s Department of Reproductive Health and Research, and the Joint United Nations Programme on HIV/AIDS, oversaw this work and the subsequent review of the paper.

processes for a subset of traffic created by TCP indicates that the (heavy-tailed) joint distr...

STRllilJllO!'. ' CODE Approved for public relt:ase; distr ibution is unlimited. 13, ABSTRACT (nl/,xilllum lOO wordj) The M61 AI gatiing gllll is the principal component of the PHALANX Close-In Weapons System (CJWS), ",ilieh;~~~~~~~~~. ~xa;:~~~~ ~:!~i~ ~::~:l f~:~~~~~:~:ea~~at~~~a~~~~:1:Pn

of splitting up the total present value in the di#erence of two present values with positive payments. Making use of a copula as an approximation for the joint distribution of the two sums, an approximation for the distribution of the original present value can be derived. Keywords cash flow,prq5# t value

Abstract. We review theoretical models of individual motility as well as collective dynamics and pattern formation of active particles. We focus on simple models of active dynamics with a particular emphasis on nonlinear and stochastic dynamics of such self-propelled entities in the framework of statistical mechanics. Examples of such active units in complex physico-chemical and biological systems are chemically pow-ered nano-rods, localized patterns in reaction-diffusion system, motile cells or macroscopic animals. Based on the description of individual motion of point-like active particles by stochastic differential equations, we discuss different velocity-dependent friction functions, the impact of various types of fluctuations and calculate characteristic observ-ables such as stationary velocity distributions or diffusion coefficients. Finally, we consider not only the free and confined individual active dynamics but also different types of interaction between active par-ticles. The resulting collective dynamical behavior of large assemblies and aggregates of active units is discussed and an overview over some recent results on spatiotemporal pattern formation in such systems is given. 1

This report focuses on the evidence about the health.consequences of smoking for women, and is intended to serve.the public health and medical communities as 'a unified source of existing scientific research. The major issues about tobacco use and women's health are examined, including trends in consumption, biomedical evidence, and determinants of smoking ititiation, maintenance, and cessation. The biomedical aspects ofsmoking are presented in terms of mortality, morbiplity, cardiovasculaidiseases, cancer, pregnancy and infant,health,, Teptic ulcer disease, drug reactions and, interactions, food constituents, and responses to,diagnostic tests. The psychosocial and behavioraj. aspects, of smoking in women are discussed, along with the docffiented increases in- the risk of contracting lung cancer, heart,disease, or lung disease. The harmful effects of pregnant mothers smoking behaviors, are also docudented. Adhitionally, recent data are enumerated to indicate a trend of,decreasing tobacco usage among women in response to the warnings of the gavernMent, voluntary agencie, and physicrins. (Author /NRB)' DOCUMENT RESUME cc 015 465