AIM To determine the effects of hyoscine-N-butyl bromide (HBB) rectal suppository on labor progress in primigravid women. METHODS A randomized double-blind placebo-controlled clinical trial was carried out on 130 primigravid women admitted for spontaneous labor. The women were recruited based on the inclusion and exclusion criteria and randomized into the experimental (n=65) and control group...

The basic structure of a CGE model dividing Mainland China into two parts, including Chongqing and rest regions, is described. Based on this CGE model, both the unilateral impact and collaborative impact of two policies, agricultural technical progress and supporting policies for improving rural labor transfer on the economic development in Chongqing, are simulated and analyzed. The results dem...

The strong pace of improvement in coal industry labor productivity has been a major reason for the decline in coal minemouth prices that has taken place since 1979. The Annual Energy Outlook 2000 (AEO2000) forecast projects that labor productivity on a national basis will improve on average at a rate of 2.3 percent per year between 1998 and 2020, declining from an annual rate of 6.1 percent ach...

We develop a theory that focuses on the general equilibrium and long-run macroeconomic consequences of trends in job utility. Given secular increases in job utility, work hours per capita can remain approximately constant over time even if the income effect of higher wages on labor supply exceeds the substitution effect. In addition, secular improvements in job utility can be substantial relati...

The major adaptations of the maternal cardiovascular system that progress throughout gestation may unmask previously unrecognized heart disease and result in significant morbidity and mortality. Most of these changes are almost fully reversed in the weeks and months after delivery. Hemodynamic changes during pregnancy include increased blood volume, cardiac output (CO), and maternal heart rate;...