Objectives-This report presents preliminary data for 2012 on births in the United States. U.S. data on births are shown by age, live-birth order, race, and Hispanic origin of mother. Data on marital status, cesarean delivery, preterm births, and low birthweight are also presented. Methods-Data in this report are based on 99.96% of 2012 births.Records for the few states with less than 100% of re...

BACKGROUND The extent to which complications or adverse outcomes in a first vaginal birth may contribute to mode of delivery in the next birth remains unclear. This study examines the impact of the first birth on subsequent mode of delivery. METHODS The study population included women with a first vaginal birth and a consecutive second birth. Data were obtained from linked birth and hospital ...

this study was designed to investigate causes of culling in industrial dairy herds in fars province and to describe the pattern of reason-specific culling with respect to age of animal and interval from calving to culling. a total number of 9 dairy herds were selected for the study and information about culling reasons, birth date, last calving date and culling date was collected for culled cow...

James Allen defined a calculus of time intervals in [A1183], as a representation of temporal knowledge that could be used in AI. We shall call this the Interval Culculus. In his paper, Allen investigated specification and constraint satisfaction in the Interval Calculus. Other constraintsatisfaction algorithms for intervals have considered subclasses of Boolean formulas only. The methods herein...

BACKGROUND Short and long birth intervals have previously been linked to adverse neonatal outcomes. However, much of the existing literature uses cross-sectional studies, from which deriving causal inference is complex. We examine the association between short/long birth intervals and adverse neonatal outcomes by calculating and meta-analyzing associations using original data from cohort studie...

Birth intervals (time between two successive live births) if short are associated with diverse complications. We assessed birth interval and its predictors among 613 married women who gave birth from January 1 to December 30, 2008. Data were collected in April 2012. Life table and Kaplan-Meier curve were used to estimate cumulative probabilities and median birth interval, respectively. Log rank...

BACKGROUND Recent studies have found associations between the gene encoding pregnancy associated plasma protein-A2 (PAPP-A2), a protease of insulin-like growth factor binding protein -5 (IGFBP-5), and measures of female reproductive performance in cattle. The purpose of the present study was to test the effects of Pappa2 deletion on reproduction in mice. FINDINGS We measured the fertility and...

We present a linear time algorithm for unit interval graph recognition. The algorithm is simple and based on Breadth-First Search. It is also direct | it does not rst recognize the graph as an interval graph. Given a graph G, the algorithm produces an ordering of the vertices of the graph whenever G is a unit interval graph. This order corresponds to the order of the intervals of some unit inte...

OBJECTIVE To examine, following statewide dissemination, the influence of an evidence-based home visitation program for first-time mothers on reductions of subsequent pregnancies across time and different locations. DESIGN Retrospective cohort study. SETTING Replication sites for the Nurse-Family Partnership (17 urban sites and 6 rural sites) across the Commonwealth of Pennsylvania between ...