background: providing community-based mental health services is crucial and is an agreed plan between the iranian mental health office and the regional committee for the eastern mediterranean (affiliated with who). the aim of this study was to determine the effectiveness of home-visit clinical case-management services on the hospitalization rate and other clinical outcomes in patients with seve...

the types of transmission systems which today are available for long distance transmission of large numbers of telephone circuits are those for coaxial cables and radio links. the number of circuits is increased in both cases in step with development in technique. radio links have for several years been able to transmit 600 telephone circuits per system. and are now being designed for 960 circu...

OBJECTIVE To evaluate the effectiveness of cellular telephone text messaging as a reminder tool for improving adherence to sunscreen application. DESIGN We conducted a randomized, controlled trial of the effect of an electronic text-message reminder system on adherence to sunscreen application. Adherence to daily sunscreen use was evaluated using a novel electronic monitoring device. SETTIN...

the exposure to electromagnetic field emitted by mobile telephones is increasing rapidly worldwide that causes side effects, including thermal and non thermal side effects. ear proximity to electromagnetic source may lead to greater damage and side effects, including hearing loss. this study was performed to assess the chronic effect of exposure to electromagnetic field of mobile telephones on ...

Work-related asthma (WRA) is a preventable occupational disease associated with serious adverse health outcomes. Using the 2006-2009 Behavioral Risk Factor Surveillance System (BRFSS) Adult Asthma Call-back Survey (ACBS) data from 38 states and the District of Columbia, CDC estimated that among ever-employed adults with current asthma, the proportion of current asthma that is work-related was 9...

Empirical studies have conŽrmed the prediction of theoretical models that contact in multiple markets may enhance Žrms’ abilities to tacitly collude and consequently achieve higher prices and proŽts. It has remained largely unexplored, however, how Žrms coordinate their actions. This paper identiŽes a method of pricing in the cellular telephone industry that seems to enable Žrms to coordinate t...

In cellular telephone systems, an important problem is to dynamically allocate the communication resource (channels) so as to maximize service in a stochastic caller environment. This problem is naturally formulated as a dynamic programming problem and we use a reinforcement learning (RL) method to find dynamic channel allocation policies that are better than previous heuristic solutions. The p...

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