Organic pesticides were developed during and after World War II to displaced inorganic and metal organic substances such as sulfur, arsenic, sodium fluoride and boric acid, which used by society for thousands of year. Some of these pesticides were OCPs which are organic compounds that contain chlorine. These OCPs were preferred because of their effective against the target pests even if only sm...

Adolescents are frequently prescribed hormonal contraceptive agents for both contraceptive and noncontraceptive purposes. Over half of all sexually experienced females aged 15 to 19 have used some form of hormonal contraception: 56% oral contraceptive pills (OCPs), 20% injectable, 14% emergency, 10% patch, and 5% ring. Given that 50% of adolescent girls have been sexually active before age 18, ...

Object-based convolutional neural networks (OCNNs) have achieved great performance in the field of land-cover and land-use classification. Studies suggested that generation object positions (OCPs) largely determines OCNNs. Optimized distribution OCPs facilitates identification segmented objects with irregular shapes. In this study, we propose a morphology-based binary tree sampling (BTS) method...

The Network Enabled Optimization Server (NEOS) for solving tough optimal control problems (OCPs) is introduced. Though NEOS is generally used to solve static optimization problems, in solving dynamic optimizations (OCPs) in a general form, we show that the NEOS Server has some advantages over the existing dedicated optimal control software packages. After a step by step introduction of how to s...

This study evaluated the concentrations of organochlorine pesticides (OCPs) in inlet and outlet treatment plant Ahvaz city. For this purpose, six OCPs, including chlordane, dieldrin, dichlorodiphenyltrichloroethane, heptachlor, lindane, endrin were measured at three different sites during, 12 months. A gas chromatograph-mass spectrometer (GC-MS) device was applied for analysis determination tar...

Organic pollutants (PAHs, PCBs, and organochlorine pesticides (OCPs) from sediments Asian green mussels (Perna viridis) in Jakarta Bay were studied using GC-MS/MS. The PAHs concentration the ranged 186.64 to 915.71 µg.kg−1 per sediment dry weight (dw), while PCBs OCPs 3 117 17.99 dw, respectively. For P. viridis, 16 types of 591 997 dw mussels, varied 5 6 mussel. selected ratios, including Ant/...

organochlorine compounds such as, polychlorinated biphenyls and organochlorine pesticides are among the best known classes of contaminants because of their potential for magnification and harmful biological effects. in this study, the amounts of organochlorine pesticides including d.d.t and its metabolites, α, β and γ-hchs isomers, σcyclodiene (endosulfan, heptachlor, heotachlor epoxide, aldrin...

BACKGROUND Few studies have evaluated predictors of childhood exposure to organochlorine pesticides (OCPs), a class of lipophilic persistent chemicals. OBJECTIVES Our goal was to identify predictors of serum OCP concentrations-hexachlorobenzene (HCB), β-hexachlorocyclohexane (β-HCH), and p,p-dichlorodiphenyldichloroethylene (p,p´-DDE)-among boys in Chapaevsk, Russia. METHODS Between 2003 an...

OBJECTIVE To understand whether using oral contraceptive pills (OCPs) results in temporary interruption of bleeding for etonogestrel contraceptive implant users during a 14-day course. METHODS In this double-blind trial, we randomly assigned etonogestrel implant users reporting 7 consecutive days or more of bothersome bleeding to receive 14 pills of study drug (150 microgram levonorgestrel an...