This paper investigates how the Fresh Fruits and Vegetable Program (FFVP), a national program which provides funding for the distribution of free fresh fruits and vegetables to students in participating schools, affects childhood obesity. Using a panel data set, we combine matching methodology and difference-in-differences analysis to estimate the effect of the FFVP on childhood obesity outcome...

In order to investigate the effect of pruning and potassium nutrition on pumpkin grain yield and quality, a factorial experiment based on complete block design with four replications was carried out in nooshar village of ardabil province, Ardabil, Iran, in 2007. Experimental factors include potassium nutrition in three level (0, 75 and 150 kg/ha from potassium sulfate) and stem pruning (without...

background & aim: kelussiaodoratissima mozaff is a valuable plant of apiaceae family that is used as medicinal and aromatic herb. according to the importance of drying treatment on quality and quantity of essential oil, the effect of different drying methods on essential oil yield and chemical composition of kelussia odoratissima mozaff was examined in this research. experimental:  this res...

a filed experiment was conducted to assay the effect of nitrogen fertilization and cultivated density on essential oil content on dragonhead (dracocephalum moldavica) in semi-arid conditions in 100 km of south east of mashhad. the experiment was done as factorial based on randomized complete blocks design with three replications, factor included four levels of nitrogen fertilization (0, 50, 100...

The research was undertaken to determine if the plug tray cell size had an impact on plant characteristics and yield of corn salad (Valerianella olitoria L.). Seeds of four cultivars (‘Ljubljanski’, ‘Holandski’, ‘Flavor’ and ‘Masse’) were sown in styrofoam plug trays with 40 cells (60 ml cell), 84 cells (35 ml cell) and 160 cells (20 ml cell). Plants growth generally increased with cell size, t...

ISSN 2277-5056 | © 2012 Bonfring Abstract--The workability of fresh concrete should be characterized by its rheological properties based on material science approach to overcome the inadequacies of traditional empirical tests like slump test. Generally the rheological properties of fresh concrete are described by Bingham parameters in terms of two physical quantities, namely yield stress and pl...