abstract nowadays, fuzzy technique is used to prepare the map in different sciences, extensively. with due attention to important role of soil fertility in modern agriculture, the preparation of soil fertility map seems to be necessary to plan for appropriate using of fertilizers for crops. this study was conducted to prepare a distinct map for evaluating soil fertility according to soil availa...

Objective: The aim of this study was to assess fertility outcome after abdominal myomectomy and to examine the influence of the number, size, and location of uterine fibroids pertaining to fertility outcome after the surgery. Study design: Retrospective clinical study. Patients and methods: Fertility outcome from 178 women who had abdominal myomectomy during 2000-2004 were analyzed. Data from w...

Abortion was found to increase with contraception in some populations and decrease in other populations. The study investigated the reasons for this contradiction using selective measures limited by paucity of detailed data on abortion from the Matlab Demographic Surveillance System (DSS), Bangladesh, for the 1978-1998 period. A comparison of abortion, contraceptive prevalence rate (CPR), desir...

BACKGROUND Most of the recent literature on fertility stalls has concentrated on sub-Saharan Africa and has highlighted flaws in DHS data. No similar detailed research exists for presumed stalls occurring in countries outside that region. This is particularly surprising when considering that cases of fertility stalls have also been suggested in Middle Eastern countries, including Egypt, Syria a...

CONTEXT Contraceptive prevalence increased by nine percentage points from 1993 to 2000 in Bangladesh, but there was almost no decline in the total fertility rate. METHODS Data from the 1999-2000 Bangladesh Demographic and Health Survey and from the Matlab Demographic Surveillance System area collected between 1978 and 2001 were analyzed to explain the lack of change in fertility and to examin...

Determining the age of individuals in a population can lead to a better understanding of population dynamics through age structure analysis and estimation of age-specific fecundity and survival rates. Shoulder height has been used to accurately assign age to free-ranging African savanna elephants. However, back length may provide an analog measurable in aerial-based surveys. We assessed the rel...

This paper provides a unified growth theory, i.e. a model that explains the very long-run economic and demographic development path of industrialized economies, stretching from the pre-industrial era to present-day and beyond. Making strict use of Malthus’ (1798) so-called preventive check hypothesis – that fertility rates vary inversely with the price of food – the current study offers a new a...

BACKGROUND Brazil has one of the highest adolescent fertility rates in the world. Income inequality has been frequently linked to overall adolescent health, but studies that analyzed its association with adolescent fertility have been performed only in developed countries. Brazil, in the past decade, has presented a rare combination of increasing per capita income and decreasing income inequali...

Researchers continue to question fathers' willingness to report their biological children in surveys and the ability of surveys to adequately represent fathers. To address these concerns, this study evaluates the quality of men's fertility data in the 1979 and 1997 cohorts of the National Longitudinal Survey of Youth (NLSY79 and NLSY97) and in the 2002 National Survey of Family Growth (NSFG). C...

OBJECTIVE To analyse the data from Demographic and Health Survey (DHS) linking HIV serological data and fertility, and to recommend new age-specific fertility rate (ASFR) ratios of HIV-positive women to HIV-negative women to be used in the WHO/UNAIDS HIV estimates. METHODS The authors obtained ASFRs and ASFR ratios from HIV-infected women and HIV-uninfected women from 20 DHS surveys collected...