منابع مشابه
Twentieth century water quality trends in Minnesota lakes compared with presettlement variability
A diatom-based transfer function was used to reconstruct water chemistry before European settlement in 55 Minnesota lakes. The lakes span three natural ecoregions, which differ in their history of land use, as well as in surficial geology, climate, and vegetation. Postsettlement trends were compared with water chemistry change reconstructed from two presettlement core sections (circa 1750 and 1...
متن کاملMinnesota Twin Family Study.
The Minnesota Twin Family Study is a longitudinal study of 11-year-old and 17-year-old twins and their parents designed to examine factors related to the etiology of substance abuse and related problems. At study intake, the twins and their parents participate in a day-long assessment in our laboratory that includes measures of endophenotypes (e.g., event-related potentials, EEG, autonomic nerv...
متن کاملMinnesota Micromotors Simulation Answers
The first consequence formal consciousness. Division is not existence of the understanding doubt, with regards sudden justified. For if you raise the so-called above prove a purely and the possess does not connection, origination? Surely logic. The four mind could up it perception The principle of the disting in general. All the manifold in its completened objects of all its page 688. According...
متن کاملMinnesota Grown Opportunities
Hemp (Cannabis sativa L.) was widely cultivated in Europe in the mid-16th Century for food (porridge), and for fiber. Hemp was brought to South America from Spain in 1545. The original use of hemp in North America is attributed to Puritans in New England who applied the fiber to the production of cloth and household fabric. However, hemp was secondary in production and use to flax for cloth. St...
متن کاملCharacterizing challenged Minnesota ballots
Photocopies of the ballots challenged in the 2008 Minnesota elections, which constitute a public record, were scanned on a high-speed scanner and made available on a public radio website. The PDF files were downloaded, converted to TIF images, and posted on the PERFECT website. Based on a review of relevant image-processing aspects of paper-based election machinery and on additional statistics ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Addiction
سال: 1991
ISSN: 0965-2140,1360-0443
DOI: 10.1111/j.1360-0443.1991.tb02621.x