The concepts of centralization and decentralization are important ones to consider as they ultimately affect the effectiveness of schools in educating the children of a nation. Centralization refers to the condition whereby the administrative authority for education is vested, not in the local community, but in a central body.
The normal birth weight for a Wistar rat is between 5-6 grams. Birth weight of less than 5grams can therefore be regarded as low birth weight in Wistar rats. This study; which was conducted in Bowen University, Iwo, Osun state, Nigeria, in 2013, was carried out to ascertain the effect of maternal ingestion of aspirin on the outcome of pregnancy in Wistar rats, with special reference to newborn birth weight.
Comparative potencies of Aroclors 1232, 1242, 1248, 1254, and 1260 in male Wistar rats--assessment of the toxic equivalency factor (TEF) approach for polychlorinated biphenyls (PCBs).Harris M, Zacharewski T, Safe S.Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station 77843-4466.roclor 1260 was the least active inducer of the P4501A1-mediated enzyme activities. In contrast, Aroclor 1260 was a potent inducer of PROD activity (ED50 = 37 mg/kg), but Aroclors 1232, 1242, 1248, and 1254 did not induce 50% of the maximal response at the highest dose used in this experiment (2000/kg).