conclusions there is a need to train health staff, and the community, concerning preventive measures, treatment, and reducing harm for substance drug users. results among 402 idus patients, a large amount of them were male, single, and younger than 39 years. regarding psychotic and somatic symptoms caused by methadone therapy, most of the participants had no problem with methadone maintenance t...

the aim of this research paper is the introduction of a novel mathematical approach to improvethe accuracy of the results of air pollution dispersion models based on the calibration of input backgroundconcentrations. using the dunkirk area of the city of nottingham in the uk as a case study, an air pollutionmodel in adms-roads was created for developing the mathematical approach. the iterative ...