According to the results of this study, providing suitable conditions and appropriate planning to address identified barriers and encouraging students can promote EBM practice. Also, more extensive EBM integration in medical curricula and clinical settings by leading faculty members would prompt medical students to use EBM in their daily practice.

SUMMARYIt is necessary for transformerless inverters to eliminate the common-mode leakage currents to enhance safety and current quality. The transformerless H6 inverter configuration is an adequate solution to photovoltaic low power modules as a result of its high efficiency, unipolar voltage across output filter, no need to input split capacitors and half input voltage compared with neutral point clamped inverters. In grids with a high grid impedance, there will be a rise in harmonic magnitude, so qualifying the standards for the harmonic limits may be problematic. In this paper, 2LLCL filter is offered to satisfy the current harmonic standards and decrease the filter weight and size. Experimental results of 300 W hardware prototype verify the proposed filter with H6 inverter configuration.

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Although texturing of the transparent electrode of thin-film solar cells has long been used to enhance light absorption via light trapping, such texturing has involved low aspect ratio features. With the recent development of nanotechnology, nanostructured substrates enable improved light trapping and enhanced optical absorption via resonances, a process known as photon management, in thin-film solar cells. Despite the progress made in the development of photon management in thin-film solar cells using nanostructures substrates, the structural integrity of the thin-film solar cells deposited onto such nanostructured substrates is rarely considered. Here, we report the observation of the reduction in the open circuit voltage of amorphous silicon solar cells deposited onto a nanostructured substrate with increasing areal number density of high aspect ratio structures. For a nanostructured substrate with the areal number density of such nanostructures increasing in correlation with the distance from one edge of the substrate, a correlation between the open circuit voltage reduction and the increase of the areal number density of high aspect ratio nanostructures of the front electrode of the small-size amorphous silicon solar cells deposited onto different regions of the substrate with graded nanostructure density indicates the effect of the surface morphology on the material quality, i.e., a trade-off between photon management efficacy and material quality. This observed trade-off highlights the importance of optimizing the morphology of the nanostructured substrate to ensure conformal deposition of the thin-film solar cell.

The overall objective of this study is to investigate the relationship between the expansion of marketing channels and marketing strategy is the first to examine the process of a questionnaire containing 19 questions was used as the existing standard . The research population , employees of manufacturing companies and trading company in Iran that their number is 1176 people . Sample size using the formula by including sampling error was estimated at 0.05 confidence level 0.95 times the number of 128 samples were selected by simple random sampling method . After collecting the questionnaires, data , summarization , classification -classification and descriptive statistics were analyzed using confirmatory factor analysis . Cronbach's alpha blend factor equal to 0.96 . Output correlation coefficient test confirmed all the research hypotheses using structural equation in the general case the connection between the expansion of marketing channels and marketing strategy were found to be equal to 0.67 .