Using 1980 and 1990 household level Census data, Borjas takes advantage of variation in benefits across states and finds that not only does California act as magnet for immigrants, but it also attracts a disproportionate amount of lower-skilled workers.
Variation in benefits and costs among studies is attributed largely to differences in the species composition and age structure of urban tree populations, though methodological differences also play a role.
The second experiment aimed to determine if weaver's indirect risk assessment was sensitive to variation in benefits.
Furthermore, because of relatively small numbers of patients included per radiation oncologist, we were unable to assess associations between the variation in benefits and harms discussed and oncologists' characteristics.
They included restricting Carer's Allowance, taxing disability benefits, limiting child benefit to the first two children and regional variations in benefit caps.
Some slight variations in benefit packages, premiums, co-payments and other operational details between the individual CHI constituent sub-schemes included in SHU do exist.
The move would allow significant variations in benefits from state to state, much like the current differences in state Medicaid programs and the Children's Health Insurance Program.
These include premium costs and collection methods, the impact on equity of variations in benefits packages, the payment mechanism used to reimburse providers, and the impact of different financing methods on health outcomes.
Other studies have also recorded higher species diversity in areas with nurse plants (Mandujano et al., 2002; Franks, 2003; Martínez et al., 2003), although in some cases there were variations in benefits depending on the size and age of nurse plants (Kellman and Kading, 1992; Suzán et al., 1996).
Paul Soloway, a nutrition professor at Cornell University, points out that characterizing diets or specific nutrients as being genome-damaging or genome-protecting on the basis of in vitro studies overlooks the variations in benefits that exist over a lifetime, particular relative to the timing of disease onset.
