by N Muhaidid Â· 2019 Â· Cited by 2 â€” This content was downloaded from IP address 197.242.143.168 on 01/23/2020 at. [11] Sardiman. 2011 Interaksi dan motivasi belajar mengajar. by M Muhaidid Â· 2019 Â· Cited by 1 â€” This content was downloaded from IP address 197.242.143.168 on 01/23/2020 at. [12] Sardiman. (2010). Interaksi dan motivasi belajar mengajar.Q: Computing integral in spherical coordinates I am confused as to how to do this. According to my textbook. The answer should be $(cos\theta)(\Delta r^2 + r^2\sin^2\theta\Delta\phi^2) + (r^2\sin\theta\cos\theta\Delta\theta + r\Delta r)^2$ But I am told this is incorrect. Why is this? A: The problem is the $\Delta r^2$ term. You cannot change the $\Delta$ from a finite difference approximation to an integral because the $\Delta r^2$ term would be non-zero. Eric Toussaint Eric Toussaint (born 6 August 1973) is a retired French professional footballer who played as a midfielder. References External links Eric Toussaint profile at FootballDatabase.com Eric Toussaint profile at Football-Lineups Category:1973 births Category:Living people Category:French footballers Category:Association football midfielders Category:Troyes AC players Category:Quimper Kerfeunteun F.C. players Category:Ligue 2 playersAccuracy of a portable drug monitoring device compared with capillary gas chromatography for drug testing. This study investigated the accuracy of a new portable drug monitoring device, a Breathalyzer (Orion Diagnostic Co., Union City, CA, USA), when compared with capillary gas chromatography (GC). Blood or oral fluid samples (n = 84) were analyzed by GC and the Breathalyzer. The results were compared with the in-house GC result using blood samples and self-reported results of