Objectives: Volunteering has great economic and social benefits, but it is neglected due to the nature of the work. This study aimed to assess the monetary aspect of the voluntary activities in the National Plan of Safety and Health of Nowruz Passengers and analyze the cost of the implementation of this plan, regarding youth volunteers. Methods: In this descriptive-analytical study, 1574 volun...

Molecular replacement can be used for obtaining approximate phasing of an unknown structure from a known related molecule and for phase improvement as well as extension in the presence of noncrystallographic symmetry. Emphasis is placed on the latter procedure. It is shown that the real-space method of iterative electron density averaging and Fourier back transformation corresponds to iterative...

This study extends nutritional intervention results reported by short-term clinical trials of a diabetes-specific nutritional meal replacement by assessing the ten-year impact of the interventions on patient outcomes and costs compared to usual care. We developed and validated a computer simulation of type 2 diabetes based on published data from major clinical trials. The model tracks patients ...

The target of stand-alone hybrid power generation system was to supply the load demand with high reliability and economically as possible. An intelligent optimization technique using Genetic Algorithm is required to design the system. This study utilized Genetic Algorithm method to determine the optimal capacities of hydrogen, wind turbines and micro-hydro unit according to the minimum cost obj...

OBJECTIVE To assess the extent of long-term use of different nicotine replacement treatment products in smokers attending routine smoking cessation treatment and to examine the effect of nicotine replacement treatment cost on its long-term use. METHOD 1518 consecutive patients prescribed nicotine replacement treatment at the East London Smokers' Clinic between January 2000 and November 2002 w...

In this paper, we presented an optimal iterative decision rule for minimizing total cost in designing a sampling plan for machine replacement problem using the approach of dynamic programming and Bayesian inferences. Cost of replacing the machine and cost of defectives produced by machine has been considered in model. Concept of control threshold policy has been applied for decision making. If ...

Arthritis of the hip is a cause of significant morbidity to the sufferer, for which total hip replacement is firmly established as an effective treatment. In order to assess the cost utility and benefit of total hip replacement, we compared the costs incurred to the health benefit accrued as measured by improvement in pre to post operative Harris hip scores, WOMAC osteoarthritis indices and SF ...

We consider formal verification of recursive programs with resource consumption. We introduce prefix replacement systems with non-negative integer counters which can be incremented and reset to zero as a formal model for such programs. In these systems, we investigate bounds on the resource consumption for reachability questions. Motivated by this question, we introduce relational structures wi...