[Density of airborne bacteria in a children's hospital in Tehran]

Atmospheric transport is a key mode of microbial dispersal and the transmission of airborne microbe can have significant impacts on human health. The main objective of this study was to determine the concentrations of airborne bacteria in a children's hospital. Three sampling points were selected. Airborne bacteria were collected with 6 days interval at each location using Quick take 30 sampler at an sampling rate of 28.3 l min-1 from November 2007 to March 2008. The results showed that the highest indoor density of bacteria was 429 CFU/m3 that founded in oncology ward. Bacteria identified were representative of normal flora of the skin, respiratory and gastrointestinal tracts. Our analysis revealed that colony of bacteria in 14% in patient room exceeded available guideline value for indoor air quality. That 11% cases was found in the oncology ward

[Knowledge translation: a model for research utilization]

The present study was aimed to design a knowledge transfer model that would provide a conceptual framework for linking the different components of a knowledge translation cycle. Such a theoretical model will enable us to organize and evaluate the current situation and design further studies on the transfer of research generated knowledge. This research, performed in 2006-7 in Tehran University of Medical Sciences, utilized two district methodologies: the first part was a narrative review with the goal of identifying the existing knowledge transfer models; the second part included focus group discussions to find out the views and opinions of researchers and decision-makers concerning the factors that promote or hinder knowledge translation within the health system. The two studies have provided the input for designing a "Knowledge Translation Cycle" with five domains: Knowledge Creation, Knowledge Transfer, Research Utilization, Question Transfer, and the context of University. Within each domain, the model includes two components [with the exception of the university context]. This model offers a theoretical basis for identifying the basic requirements and the linking mechanisms for the translation of knowledge