field experiments were conducted to evaluate the effect of thiobencarb and oxadiargyl herbicides on rice (oryza sativa l.) and their possible residual effects on spinach (spinacea oleracea l.) and lettuce (lactuca sativa l.) at dashtnaz and gharakhil agricultural research stations, iran. treatments included thiobencarb at 3.16 and 6.33 kg a.i. ha-1, oxadiargyl at 0.15 and 0.30 kg a.i. ha-1 and ...

JEL Bibliographic Code O15, O18, O47, O53 We postulate that inferior factor productivity in China’s noncoastal provinces is a principal reason for their lower economic growth despite high investment rates relative to coastal provinces. Using the residual from a fixed-effect Solow growth model for the years 1978-93, we find that TFP is roughly twice as high in the coastal provinces. We estimate ...

In clinical trials response variables are measured at different times and doses. This paper explores methods to determine the dose that optimizes the response based on multiple responses and doses. Linear dose-response modeling can be performed using repeated measures analysis (using PROC MIXED) for change in response (Y) using dose (X) as a continuous explanatory variable with time, dose, and ...

background: human malaria remains a major malady in eastern iran. vector control interventions such as indoor residual spraying are used to fight with the disease. this study was undertaken to determine the lethal and residual effects of three different pyrethroid insecticides on adult mosquitoes of anopheles stephensi on different surfaces in iran, as part of a national program to monitor inse...

the major purpose of the present investigation was to study the effects of different concentrations of residual chlorine on serum iron related parameters in rats. feeding male rats with water containing 80 ppm of residual chlorine daily for 5 days reduced serum levels of ceruloplasmin, copper, iron and hemoglobin by approximately 27%,23%,6% and 4%, respectively. higher reductions in serum cerul...