OBJECTIVE To examine trends in the prevalence of cigarette smoking between 1980 and 2001 among several different sociodemographic groups within the Australian population. METHOD National cross sectional surveys conducted by face to face interview every 3 years from 1980. Respondents were classified into five age groups and the occupation of respondents in the workforce were classified into on...

Objective: To examine trends in the prevalence of cigarette smoking between 1980 and 2001 among several different sociodemographic groups within the Australian population. Method: National cross sectional surveys conducted by face to face interview every 3 years from 1980. Respondents were classified into five age groups and the occupation of respondents in the workforce were classified into on...

The paper introduces asymmetric production conditions between firms and asymmetric transaction conditions between countries into the Murphy-Shleifer-Vishny model of industrialization. It explores a general equilibrium mechanism that generates circular causation loop that each firm's profitability and its decision of involvement in a network of industrial linkages and trade flows is determined b...

Concurrent with increasing prostate cancer incidence and declining prostate cancer mortality in the United States, the prevalence of obesity has been increasing steadily. Several studies have reported that obesity is associated with increased risk of high-grade prostate cancer and prostate cancer mortality, and it is thus likely that the increase in obesity has increased the burden of prostate ...

Concurrent with increasing prostate cancer incidence and declining prostate cancer mortality in the US, the prevalence of obesity has been rising steadily. Several studies have reported that obesity is associated with increased risk of high-grade prostate cancer and prostate cancer mortality, and it is thus likely that the rise in obesity has increased the burden of prostate cancer. In this stu...

Tree turnover rates were assessed at 40 tropical forest sites. Averaged across inventoried forests, turnover, as measured by tree mortality and recruitment, has increased since the 1950s, with an apparent pantropical acceleration since 1980. Among 22 mature forest sites with two or more inventory periods, forest turnover also increased. The trend in forest dynamics may have profound effects on ...

in the previous studies by foreign investigators on culicinae fauna of iran two culiseta, cs. longiareolata and cs. annulata; one coguillettidia, cog. richiardii, and one uranotaenia species, ur. unguiculata have been reported. in the comprehensive study of the culicinae fauna of iran, made by the school of public health, teheran university, since 1980, not only all named species, except one, w...