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Investigating Recent Trends in the U.S. Teen Birth Rate
U.S. Teen Birth Rate Recent Trends
2015/9/21
We investigate trends in the U.S. rate of teen childbearing between 1981 and 2010, giving particular attention to the sizable decline that has occurred since 1991. Our primary focus is on establishing...
Supplementary Role of Health Metrics for Reducing Total Fertility Rate in a North-Indian State
Total Fertility Rate REACH Strategy Health metrics ICDS Gender Rajasthan India
2015/7/10
Reducing Total Fertility Rate (TFR) amongst rural Indian couples from the current level is a significant challenge to the population control policies relying solely on the Government efforts. REACH st...
An examination of black/white differences in the rate of age-related mortality increase
aging cross-over mortality senescence USA
2014/11/25
Background: The rate of mortality increase with age among adults is typically used as a measure of the rate of functional decline associated with aging or senescence. While black and white populations...
Estimating Trends in the Total Fertility Rate with Uncertainty Using Imperfect Data: Examples from West Africa
Bayesian inference Demographic and Health Survey local smoother retrospective surveys United Nations variable selection weighted likelihood bootstrap
2014/11/20
Background: Estimating the total fertility rate is challenging for many developing countries because of limited data and varying data quality. A standardized, reproducible approach to produce estimate...
Mutation Rate Constants in DNA Genealogy (Y Chromosome)
Y Chromosome Mutations Haplotypes Haplogroups TMRCA STR SNP
2013/1/31
The basic principles of DNA genealogy and the mutation rate constants for haplotypes of Y chromosome are considered. They are exemplified with 3160 haplotypes, 2489 of those in the 67 marker format, w...
Real Exchange Rate, Foreign Trade and Employment: Evidence from China
China employment foreign trade real exchange rate
2012/10/24
Coordination of macro-economic development and employment is an essential issue for China's social development, which largely depends on economic expansion, as well as integration into the global mark...
The Recent Evolution of the Natural Rate of Unemployment
equilibrium unemployment Beveridge curve structural unemployment mismatch
2012/10/26
The U.S. economy is recovering from the financial crisis and ensuing deep recession, but the unemployment rate has remained stubbornly high. Some have argued that the persistent elevation of unemploym...
Reproductive value, the stable stage distribution, and the sensitivity of the population growth rate to changes in vital rates
matrix population models population growth senescence sensitivity
2010/9/14
The population growth rate, or intrinsic rate of increase, measures the potential rate of growth of a population with specified and fixed vital rates.The sensitivity of population growth rate to chang...
The criminality rate regarding the drugs illicit traffic and consumption
drugs crimes traffic consumption law
2009/11/23
In this study we analyze the evolution of the drugs consumption and the rapport between drugs and criminality. After the definition of drugs, the study presents a general image of the illegal drugs co...
An array of innovative policies has been suggested to address more effectively the needs of dislocated workers. In this paper, we model and simulate the impacts of a wage-rate subsidy (or salary suppl...
Can a Rapider Freezing Rate Maintain Chicken Breast Quality?—Evaluation Using Vacuum Cooking—
chicken breast freezing rate quality muscle microstructure softness
2009/8/27
Chicken breasts were frozen using 3 methods: the super slow freezing method (approximately -0.30°C/min), the slow freezing method (approximately -1.4°C/min), and the liquid nitrogen-freezing method (a...
Assessment of Physical and Mental Loads Using Power Spectral Analysis of Heart Rate Variability during Dressing--The Case of a Person with Motor Impairment Resulted from Cerebral Palsy--
cerebral palsy patient dressing heart rate variability autonomic nervous system physical loads mental loads
2009/8/18
The present study was designed to investigate assessments of physical and mental loads on a cerebral palsy patient during dressing, using power spectral analysis of heart rate variability (HRV). The e...
Defining the rate of underlying inflation。
Sources of secular increases in the unemployment rate, 1969-82
unemployment rate 1969-1982 secular increases
2009/5/31
Progressively higher rates of joblessness suggest a strong structural component in today's unemployment; the influx of women and young workers was an important factor early in the study period, while ...
White-collar pay determination under range-of-rate systems
White-collar pay range-of-rate systems
2009/5/31
Medium-size and large employers use ranges of rates to determine salaries for workers having similar jobs duties but different levels of performance or tenure; ranges are generally designed to control...