Sin City Winds

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Sin City Winds

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Graduate Woodwind Quintet Recital

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Doctoral Recital

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Oboe Studio Recital

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Student Recital

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UNLV Graduate Wind Quintet & UNLV New Horizons Band & UNLV Community

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Blending the Optical and Redox Properties of Oligoynes and Boron Difluoride Formazanates

Oligoynes and polyynes are 1-D chains of conjugated sp-hybridized carbon atoms consisting of alternating single and triple bonds. Their stability rapidly decreases with increasing chain length beyond only a few repeating units. Design strategies, such as the use of bulky end-capping groups, allow for their characterization and isolation while not contributing significantly to their physical properties. In this study, we incorporate redox-active BF2 formazanate dyes (BF2) as end-caps to prepare symmetric (BF2−[C≡C]n−BF2) and asymmetric (BF2−[C≡C]n−Si(iPr)3) families of oligoynes containing up to 10 alkyne units. In doing so, we introduce stable oligoynes that possess a blend of optical and redox properties that cannot be achieved by either oligoynes or BF2 formazanates individually (e.g., panchromatic absorption, multiple and tunable reversible redox waves). This approach is transferable to other functional end-caps to facilitate the preparation of π-conjugated materials with utility in the organic electronics arena

Facebook advertising for participant recruitment into a blood pressure clinical trial

Recruitment of sufficient sample size into clinical trials is challenging. Conventional advertising methods are expensive and are often ineffective. The effectiveness of Facebook for recruitment into blood pressure clinical trials of middle-to-older-aged people is unknown. This study aimed to assess this by comparing Facebook advertising with conventional recruitment methods from a retrospective analysis within a clinical trial. METHODS:: Conventional advertisements (newspaper, radio and posters) were employed for the first 20 months of a randomized controlled clinical trial conducted in three Australian capital cities from Tasmania, Queensland and the Australian Capital Territory. With dwindling participant recruitment, at 20 months a Facebook advertising campaign was employed intermittently over a 4-month period. Recruitment results were retrospectively compared with those using conventional methods in the previous 4 months. RESULTS:: Compared with conventional recruitment methods, Facebook advertisement was associated with a significant increase in the number of participants recruited in the Australian Capital Territory (from an average 1.8–7.3/month; P?<?0.05). There was also an increase in Tasmania that was of borderline significance (from 4.0 participants recruited/month to 9.3/month; P?=?0.052). However, there was no effect in Queensland (from 6.0 participants recruited/month to 3.0/month; P?=?0.15). Facebook advertisement was associated with a significant decrease in the age of participants enquiring into the study (from 60.9 to 58.7 years; P?<?0.001). CONCLUSION:: Facebook advertising was successful in helping to increase recruitment of middle-to-older aged participants into a blood pressure clinical trial, although there may be some variability in effect that is dependent on location.J.E.S. was supported by a National Health and Medical Research Council (NHMRC) Career Development Award (reference 569519) and the study was supported by an NHMRC Project Grant (reference 1044551)