Directory UMM :Data Elmu:jurnal:E:Ecological Economics:Vol31.Issue3.Dec1999:
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Seasonal changes of fatty acid composition (total weight percentage) of phospholipids in `Hull Thornless' and `Triple Crown Thornless' blackberry leaf buds.. Each point is a mean SE
The present work aimed at investigating the possible correlations between the N-Tester readings and the total chlorophyll, total nitrogen, total magnesium and total iron contents in
(The fact that they are self-financing means that each investment opportunity also involves a short position in some benchmark, such as cash, which is used to finance the
Using data for male respondents in the National Longi- tudinal Survey of Youth (NLSY)—the same data source used by both Ruhm and Hotz et al.—I estimate a human capital wage model
Institutional and politi- cal changes appear to have offsetting influences on vulnerability to climatic changes, given present patterns of land use and ownership and the re- duced
The estimated turning points of the quadratic and cubic models indicate that per capita emissions of nitrogen oxides reached a peak at an income level close to $9000, while per
The main conclusions of the analysis with our model are: (1) plants of all ages can grow together in a single climatic compartment; (2) spacing should be scheduled to maintain
As an additional 10 farmers reached the e- cient frontier with increasing returns to scale, the mean eciency ratings for all farmers across the levels of farm size and soil
