a fast and simple modified quechers extraction method was developed for determination of benzo[a]pyrene (bap) in 137 traditional (sangak), semi-industrial (sangak) and industrial bread samples using spiked calibration curves by gc/ms. sample preparation includes extraction of bap into acetone followed by cleanup with dispersive solid phase extraction. the limit of detection and limit of quantif...

Background: Contamination of the environment due to heavy metals is a major concern to human life and the environment. This study was conducted to investigate and quantify the copper and zinc concentrations in industrial estates soil in Arak, Iran. Methods: Four industrial estates were considered for the experimental design, including Arak 1, Arak 2, Arak 3, and Ghotbe Sanaati. For prelimin...

One of the industries that uses large amounts water is food industry. Industrial, domestic managers production process stand out with it and enter environment surrounded by contaminated effluents. Their main feature high content dissolved organic matter nitrogen. You can also create wall to aggregate-resistant colloids, which include animal vegetable fats, proteins, starch, sugar, as well salts...

The performance characteristics of four 24-inch wheelchair tires are considered; one pneumatic and three airless. Specifically, two new airless polyurethane foam tires (circular and tapered cross-section) were compared to both a molded polyisoprene tire and a rubber pneumatic tire. Rolling resistance, coefficient of static friction, spring rate, tire roll-off, impact absorption, wear resistance...

Introduction and Motivation: Mineral grains on the surfaces of airless planetary bodies like the Moon are subjected to continuous radiation processing from solar energetic ions and also experience micrometeorite impact events. Together these processes alter the morphology, chemistry, and microstructure of surface particles and are collectively known as space weathering [1]. The optical properti...

background: aflatoxin m1 (afm1) is a major carcinogenic compound that may be existed in milk and dairy products. this study was aimed to determine the presence of afm1 in industrial and traditional yogurt samples produced in iran. methods: a total of 80 yogurt samples (40 industrial, 40 traditional) was collected from supermarkets in yazd city, iran. afm1 content of the selected samples was det...

Workplace deviance has become a growing concern for many organizations particularly in developing countries because of its negative consequences on organizational productivity. Drawing on the basis of organizational support theory, this study examined the relationship of perceived organizational support and perceived supervisor support with workplace deviance. The aim of this paper was to test ...

In a general equilibrium model we examine the optimal allocation of equity and debt across banks and industrial rms when both are plagued by incentive problems and rms can borrow from banks. Increasing bank equity mitigates bank-level moral hazard but may exacerbate rm-level moral hazard due to dilution of rm equity. Competition of banks will not result in a socially e cient level of equity. Im...