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1.
JCPSP-Journal of the College of Physicians and Surgeons Pakistan. 2013; 23 (1): 47-50
in English | IMEMR | ID: emr-140579

ABSTRACT

To compare the impact of the PowerPoint multimedia presentation and chalkboard in teaching by assessing the knowledge based on the marks obtained. Cross-sectional study. Department of Physiology, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia, from December 2007 - June 2009. Three-hundred male medical students were divided into three groups and a selected content-based lecture in physiology was delivered. For one group lecture was delivered using PowerPoint presentation, for second group using chalkboard and for third group the lecture was delivered by using both PowerPoint as well as chalkboard. Single-best Multiple Choice Questions [MCQs] paper was used for assessing the knowledge gained. The same exercise was repeated in another medical science school for the confirmation of validity and reliability of the results. Students who attended the class on both PowerPoint and chalkboard obtained significantly higher score in single best MCQ examination compared to those students who attended the same content based lecture on the PowerPoint or chalkboard alone [p = 0.05]. The integrated [PowerPoint and chalkboard] method of teaching was found more suitable tool of teaching and learning than PowerPoint or chalkboard alone

2.
Annals of Thoracic Medicine. 2012; 7 (3): 153-156
in English | IMEMR | ID: emr-131697

ABSTRACT

Fractional exhaled nitric oxide [FENO] is an emerging marker of inflammation in respiratory diseases. However, it is affected by a number of confounding factors. We aimed to study the effect of drinking Arabian Qahwa on FENO in non-smoking Saudi healthy adults. We recruited 12 nonsmoker healthy male adults aged 36.6 +/- 2.7 [21-50] years. All subjects were free from acute respiratory infections or allergies and had normal ventilatory functions and serum IgE levels. At 8 am in the morning, their baseline values of FENO were recorded. They had not taken tea or coffee in the morning and had taken similar light breakfast. They were given three cups of Arabian Qahwa to drink and then after every 30 minutes, serial levels of FENO were recorded. Average FENO levels at baseline were 28.73 +/- 9.33 [mean +/- SD] parts per billion [ppb]. The mean FENO levels started to decrease significantly after 30 minutes of drinking Arabian Qahwa [P=0.002]. This decrease in FENO level was further observed till two hours after Qahwa drinking and then it started to increase in next 90 minutes but still was significantly lower than the baseline [P=0.002]. The mean FENO level recorded after 4 hours was 27.22 +/- 10.22 [P=0.039]. FENO levels were significantly lowered by intake of Arabian Qahwa and this effect remains for about 4 hours. Therefore, history of recent Qahwa intake and abstinence is essential before performance of FENO and its interpretation

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