conclusions this study demonstrated improved analgesic effects after using intravenous patient controlled analgesia with ketamine on postoperative pain in opium abusers. patients and methods after institutional review board approval for ethical considerations, a randomized double-blinded placebo controlled clinical trial was conducted. a total of 140 male patients aged 18-65 years, undergoing o...

background to get more precise responses when gathering information about sensitive topics such as drug use, it is important to use the most optimal method. objectives this study was carried out to address the impact of three interview methods (street-based, household, and telephone interviews) on response pattern to sensitive and non-sensitive questions in terms of participation, disclosure an...

cold start is one of the main challenges in recommender systems. solving sparsechallenge of cold start users is hard. more cold start users and items are new. sine many general methods for recommender systems has over fittingon cold start users and items, so recommendation to new users and items is important and hard duty. in this work to overcome sparse problem, we present a new method for rec...

Today’s tech-savvy boomers will remain comfortable with technology as they age, though they may need different interfaces. They need help with evaluating technical resources, but they will continue to adapt, tailor, configure, and program those resources. They need assistants, not supervisors”.

results the results showed that there was a significant difference between age, marital status, drug type used and length of abstinence with domains of qol (p = 0.001). conclusions the findings of the current study show that consistent participation in na self-help groups can significantly lead to an increase in qol. further research is recommended to find out causal relationships between parti...

nowadays people are seeking health information to raise their awareness. they use many ways to get this information. this study examines the health information channels used by users of public libraries. the population of the present survey  consisted of 461 users of public libraries throughout the country, randomly selected in a two-stage cluster sampling method. the questionnaire data were an...

introduction: hospital information system (his) is a computerized system which is used as an electronic tool for patient information management and plays a significant role in providing quality health care services. therefore, his users' satisfaction about the quality of the services offered is crucial in assessing and more importantly improving the technical aspects of the system. on the other...