OBJECTIVES We evaluated outcomes in couples treated for infertility with natural procreative technology (NaProTechnology [corrected] NPT), a systematic medical approach for optimizing physiologic conditions for conception in vivo, from an Irish general practice. METHODS All couples receiving treatment from 2 NPT-trained family physicians between February 1998 and January 2002 were studied. Th...

toxicity and damages caused by soil pollution with crude oil and its microbial responses may depend on nitrogen bioavailability and its form. so, the main objective of this study is to investigate the effects of crude oil and various forms of n consumption on c mineralization and microbial biomass. the experiment was done in the form of factorial (3×4) design using crd (completely randomized de...

in a case control study the effects of literacy, socio-economic status and the fertility behavior of mothers were fully investigated in two groups. out of 13123 babies born in 17 hospitals during almost 8 months in 1988-1989 in tehran 730 had a low birth weight (less than 2500 gr). as a control group, 1460 births were randomly selected from normal weight births. some basic findings are as follo...

the objective of this study is to determine risk factors causing increase in very low birth way (vlbw) neonatal mortality. the medical files of all neonates weighing ≤1500 g, born in vali-e-asr hospital (2001-2004) were studied. two groups of neonates (living and dead) were compared up to the time of hospital discharge or death. a total of 317 neonates were enrolled. a meaningful relationship e...

Seasonal differences in suicide birth rates among Alaska Natives and for populations at different latitudes (residents of the Yukon, Saskatchewan, Montana, Wyoming, and Pennsylvania) were investigated. Seasonal birth rates for the general population were similarly examined. Suicide birth rates showed small seasonal variations for Alaska Natives with summer births showing more suicides. However,...

OBJECTIVES This report provides State-specific birth rates for teenagers for 1991 and 1996 and the percent change, 1991-96. METHODS Tabular and graphical description of trends in teenage birth rates by age group for each State. RESULTS Birth rates for teenagers 15-19 years declined significantly in all but three States between 1991 and 1996. Declines by State ranged from 6 to 29 percent.

Despite implications for both humans and the environment, a scant body of research examines fertility in forest frontiers. This study examines the fertility– environment association using empirical data from Ecuadorian Amazon between 1980 and 1999. Fertility dramatically declined during this period, and our empirical models suggest that households’ relationship to land partially explains this d...