The paper analyse 1874 healthy Children aged 7-12 years surveillance information on growth and development from 1985 to 1993 year in Hefei city It showed that their growth and development was normal and situated inaccelerative a secular trend phase.
Then author takes China Containerized Freight Index(CCFI) as research object to set up Time Series Multiplication Model by which the author finds out Secular Trend, Seasonal Fluctuation, Cyclical Movement and Irregular Variation of the price in China's International Container Liner Transport Market, and digs out the economic, political, social, science and technology and other factors influencing and changing the transportation price.
In connection with the constitutes of cash flow for investment project, the secular trend of every major economic factor are estimated. And simulated calculation and statistic analysis of financial risk indexes are undertaken. According to the integral model of risk probability, the measurement of financial risk for project investment is taken.
Objectives Through exploring the secular trend, endemic situation andeffectiveness of prevention and control in the schistosomiasis surveillance sites of Sichuan province, to find out the weakness in the control and the emphasis in the future work, and to form a good information feedback for serving the field work, giving advices on how to establish corresponding control strategy and macroscopic planning and offering the reference for the similar study as well.
The data clearly showed a positive secular trend in growth in Shanghai children over the period of 1980～1996. At 6 years of age, the mean increase in weight, height and body mass index (BMI) were 1.24kg, 2.65cm and 0.21kg/m 2 per decade.
According to the international standard anthropometric method,we research the stature of 1214 Han nation students aged 7—17 who live in rural area of Dalian, and based on the data available,we research the growth secular trend,sex differnces,and the age at peak height velocity of stature of these students.
Secular trend near the focus of maximum horizontal intensity
The productivity studies, on the other hand, despite a variety of methodologies, reveal a rising secular trend over the past century.
Correlations of age with intrapair differences in handedness suggest a secular trend toward reduced social pressure on males to be right-handed.
The iconometrographic approach was proposed as a primary orientation in human biology, particularly in secular trend studies concerned with the recognition and assessment of complex evolutionary trends.
Factors responsible for the elevated rate of inbreeding among the professional/mercantile class and its secular trend are discussed.