Sensitivity. The application of activation analysis t o strontium-84 micro estimations allowed amounts of the order of gr:tm to be detected with ease. As the half life was relatively long, the samples could be processed in large batches and their activity detected later when all the samples were completed. Tests on solutions of known strontium-84 content gave experimental results which were in the range ztlyo of the (calculated value.Biological samples varying in known strontium-84 content from gram to 10-6 gram were malyzed by the above method and gave experimental results which were in the range *2Q/, of the calculated value.
Identificatiion and CONCLUSIONThis type of analysis was made possible by the use of activation analysis and made simple by the ability to add relatively large amounts of carrier strontium, thus removing the need for micro separation techniques.The mixed ferrocyanide was useful in the separation of calcium from barium and strontium. ACKNOWLEDGMENT The author thanks John Glaister, J.M.A. Lenihan, and Edgar Rentoul Origin Determinations of Cannabis by Gas aind Paper Chromatography b The cannabinols present in the leaves and flowering tops ccin be characterized by relative retention times and Rf values.Pyrahexyl, a commercially available tetrahydrocannabinol homologue, may be used as a reference. The Beam reaction diffcrentiatescannabidiol from the other ccinnabinols in gas chromatographic fralctions and on paper chromatograms. This test may now be considered ,characteristic of cannabis. A plot of peak areas of cannabidiol vs. cannabinol plus tetrahydrocannabinol permits differentiation between cannabis of different geog ra p hica I origins. HE FOLLOWING !cannabinols are T contained in Cannabis sativa L.: i=-0 CH/ 'CH3 Tetrahydrocannabinol (THC)for support and laboratory facilities during the investigation.
AC, p,0.001). In the last 12 months 36% SC patients had been hospitalized vs 16% AC (p,0.001) and had mean of 2.3 vs 2.0 (p=0.007) comorbidities respectively. Poorvery poor Q-LES-Q overall life satisfaction was reported by 24% SC patients and 11% AC (p,0.001) with overall scores of 49.7 and 56.2 (p,0.001) respectively. Poorer quality of life was also reported through mean EQ5D VAS scores (64.6 SC vs 68.9 AC p=0.01). Patients reported mean WPAI percentages of 34.2 SC vs 31.0 AC for overall work impairment (p=0.44) and 47.5 SC vs 42.7 AC (p=0.038) for daily activities impairment. Conclusions: Poorer outcomes and increased likelihood of hospitalization are evident in Schizophrenia patients who are sometimes compliant with current treatment compared to those who are always compliant.
Learning Objectives: To demonstrate the positive impact of an IR symposium on medical student understanding of and career interest in IR. Background: IR has recently been recognized by the ABMS as a distinct clinical specialty with a unique residency that provides training in diagnostic radiology (DR), minimally invasive image-guided procedures, and the clinical management of patients undergoing IR procedures. Building awareness and interest among medical students is of paramount importance to the success of the IR residency and the future of IR. Clinical Findings/Procedure Details: A team of IR attendings, trainees, and support staff planned and marketed the symposium to medical students. The curriculum included an information session on the upcoming IR residency, a talk titled "A Day in the Life of a DR-IR Trainee," an overview of IR scope of practice, hands-on procedural simulation stations, and a panel discussion with trainees and attendings in academic and private practice. Registrants and attendees were asked to complete pre-and post-symposium surveys. Conclusions: An IR symposium is a highly effective means for educating medical students about IR as a clinical specialty and career option. Our results also support the use of social media as an effective marketing tool to inform medical students about IR and IR-related events. Results: 200 medical students registered online for the event, with 93 (46.5%) in attendance from 10 medical schools. In addition, 67 viewers tuned in to our live video stream via Periscope. 119 registrants completed the pre-symposium survey, with 55% male, 45% female, and 28% MS1, 46% MS2, 12% MS3, and 14% MS4. Only 6% of registrants had attended a similar IR symposium previously. 24% identified social media as the means by which they learned of the event. 49 attendees completed the post-symposium survey. 98% agreed or strongly agreed that they found the symposium educational. Prior to the symposium, only 24% of respondents indicated that they agreed or strongly agreed that they understood what an IR does; this figure increased to 96% afterwards. Interest in IR as a career increased from 36% to 76%, and interest in DR as a career also increased from 24% to 39%.
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