We propose our approach for a three-level data structure set-up: arms within studies at the first level, studies within study designs at the second level and design configuration at the third level.
The first is less data intensive and provides a unified score that can be used to compare and screen process alternatives, while the second level studies the contribution of individual degradation products to different EHS hazard categories in detail.
There is neither statistical bias in the INSERM report (which anyway is not a meta-analysis, but a literature analysis), nor in the first or second level studies on which it is based, mainly Randomised Controlled Trials (RCT).
This work which on a first level studies the decoupling indices from economic growth, on a second level attempts to contribute to the enrichment of literature on preventive policy tools, extracting the total factor productivity index of economic systems through an input-oriented model.
On a second level, studies examining the activity of GSNO-R in castrated eNOS−/− mice demonstrate an increase in GSNO-R activity with castration in the absence of eNOS, suggesting that androgens have a separate eNOS-independent mechanism by which they alter GSNO-R activity.
The spatial vector based program Ihssim is developed to characterize the inclined heterogeneity strata (IHS) inside the point bar sand at third level architecture study stage.
About a decade ago, new inventions opened up a third level of studies investigating gene expression at the RNA level from peripheral blood and tumor tissue by microarray technology.
To the authors' knowledge, this is the first national level study of the impact of state mandatory diabetes insurance coverage on the use of diabetes preventive care.
This is the first population level study to clearly demonstrate a difference in the longitudinal rate of decline of lung function in CF on the basis of socioeconomic status, but in contrast to previous studies there was no evidence of a significant social difference at 6 years of age.
This is the first national level study that we are aware of that has simultaneously examined the relationship between neighbourhood deprivation and both alcohol and tobacco outlets, though patterns observed are similar to those reported separately for alcohol and tobacco in the USA [ 27, 28], New Zealand [ 29, 30] and Australia [ 31, 32].
