This study was carried out to determine the pesticide residue levels and health risk assessments in tomato, pepper, cucumber grown Tokat province of Turkey. A analytical method verified 260 pesticides by using a liquid chromatography-tandem mass spectrometry (LC-MS/MS). Pesticide solutions at 10 50 µg kg­¹ doses were fortified with pesticide-free matrix for verification method. The linearities ...

The study was carried out to detect and quantify the left over residue of fenvalerate acephate in tomato yard long bean using Gas Chromatography coupled with Flame Thermionic Detector. Four supervised field trials were undertaken sprayed prescribed dose at rate 1mL/L water 2g/L water. samples collected 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 15 days after spray (DAS). detected up 11 DA...

Atom depth, defined as the distance (dpx, A) of a nonhydrogen atom from its closest solvent-accessible protein neighbor, provides a simple but precise description of the protein interior. Mean residue depths can be easily computed and are very sensitive to structural features. From the analysis of the average and maximum atom depths of a set of 136 protein structures, we derive a limit of appro...

This work was undertaken to determine the pre-harvest interval of bifenthrin and to minimize its residues in pulses and thereby ensure consumer safety and avoid non-compliance in terms of residues violations in export market. Furthermore the residue dynamics in the soil under pulses was explored to assess the environmental safety. The residues of bifenthrin dissipated following first order kine...

Abstract Chlorpyrifos is an organophosphate insecticide. It has low aqueous solubility, volatile and non-mobile, moderately persistent in soil, highly toxic to mammals, acetylcholinesterase inhibitor. The main use of chlorpyrifos control various types agricultural pests. This study aims determine the absorption residues maize plants. was conducted July-December 2019. Experimental research at Ja...

Residue levels of dimethoate and its oxon metabolite (omethoate) during tea planting, manufacturing, and brewing were investigated using a modified QuEChERS sample preparation and gas chromatography. Dissipation of dimethoate and its metabolite in tea plantation followed the first-order kinetic with a half-life of 1.08-1.27 d. Tea manufacturing has positive effects on dimethoate dissipation. Pr...

capacity of a road facility as an important characteristic in transportation and traffic studies is defined as the maximum rate of flow that could be held by that facility, which has been supposed to have a constant and certain value. this assumption, although necessary for most traffic studies, has also caused some problems, like that of demand exceeding capacity in many road facilities. resea...

The number Yn of oospring of the most proliic individual in the nth generation of a Bienaym e-Galton-Watson process is studied. The asymptotic behavior of Yn as n ! 1 may be viewed as an extreme value problem for i.i.d. random variables with random sample size. Limit theorems for both Yn and EYn provided that the oospring mean is nite are obtained using some convergence results for branching pr...