BACKGROUND The aims were to identify predictors of treatment retention in methadone maintenance treatment (MMT) clinics in Pearl River Delta, China. METHODS Retrospective longitudinal study. PARTICIPANTS 6 MMT clinics in rural and urban area were selected. STATISTICAL ANALYSIS Stratified random sampling was employed, and the data were analyzed using Kaplan-Meier survival curves and life t...

Requirements Engineering (RE) is the process of discovering the purpose of a prospective software system, by identifying stakeholders and their needs, and documenting these in a form that is suitable to analysis, communication, and subsequent implementation. Requirements elicitation is closely related and even interleaved to other RE activities such as: modeling, analysis & negotiation, and com...

the problem of good and bad in philosophy and theology can be discussed from two perspectives, ontological and epistemological. the problem that we're seeking to answer in this paper is that: does the theory of “al-idrakat al-i'tibariyah” (constructive perceptions) has presented a new solution for it?  if yes, which way it has used to deal with the problem (ontological or epistemologi...

Background and objectives: the weaning procedure of mechanical ventilation in many patients is a difficult and long process and increases the time of mechanical ventilation. There are numerous ways to achieve this goal. One common way is using CPAP-ventilator. Considering the lower price of Blender-Humidifier compared to CPAPof ventilator and the limited number of studies in this field, this st...

one of the most important adverse environmental effects of herbicide application in production systems is possible damage to non-target plants, such as crops that are grown in rotation. nicosufuron+rimsulfuron (ultima) is a sulfonylurea herbicide that recently registered for use in maize fields in iran. its residues may be present more than a season in certain conditions. to measure nicosufuron...

Use of new techniques to evaluate irrigation areas can enhance water use efficiency in agriculture. In this study, the fuzzy analytic hierarchy Process (FAHP) was used to qualitative land suitability for sprinkler irrigation and was compared with the parametric method. Evaluation based on parametric method showed that an area of about 1597.83 hectares (31%) of the lands was highly suitable (S1)...