13th International Conference on Emergency Medicine Singapore 9-12 Jun 2010 by Chew Keng, Sheng

“…A circadian variation in the occurrence of sudden cardiac death was demonstrated, with a tow occurrence rate between midnight and 6 AM and a 2.4-fold increase between the rate at 6 AM and the rate at noon. The same circadian pattern was noted among both men and women, among both patients aged 18 to 70 and those older than 70 years, and among patients with various initial cardiac arrest rhythms (ventricular tachycardia or fibrillation, asystole, and electromechanical dissociation). …”
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Comparison Of Traffic Noise Level Assessment Between Industrial Areas, Residential Area And Construction Areas In Ipoh, Perak by Zain, Wan Mohd Nainunis Wan Md

“…This noise level is recorded during peak hours between 7.30 am - 9.30 am (morning), 12.00 pm - 2.00 pm (noon) and 5.00 pm - 7.00 pm (evening). Different areas or sampling points would have different characteristics, therefore, different noise exposure limit would be obtained. …”
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