Organizations are dynamic and changing entities. Variables associated with organizational change have been shown to serve as mediators of several individual difference variable/workrelated outcome relationships. This study examines three potential antecedents of 258 police officers' attitudes toward organizational change (ATOC), and whether ATOC mediates the relationships between these antecedents and affective organizational commitment (AOC). At the time of data collection, the officers' police department was restructuring its organizational design. Structural equation modeling indicates the growth need strength/AOC relationship is fully mediated, whereas the locus of control/AOC and internal work motivation/AOC relationships are partially mediated by ATOC. Implications and directions for future research are discussed.

ObjectiveThe purpose of this study was to assess the safety and efficacy of the ClariVein® system that employs mechanochemical ablation of the great saphenous vein (GSV).MethodPatients eligible for ablation of the GSV underwent micropuncture access with only local anaesthesia to insert a 4 or 5 Fr sheath. The ClariVein® catheter was placed through the sheath, the wire was extruded, and the distal tip of the wire positioned 2 cm from the saphenofemoral junction under ultrasound guidance. Catheter wire rotation was then activated for 2–3 seconds at approximately 3500 rpm. With the wire rotating, infusion of the sclerosant was started simultaneously with catheter pullback. The sclerosant used was 1.5% liquid sodium tetradecyl sulphate (Sotradecol©, Bioniche Pharma Group, Geneva, Switzerland).ResultsThirty GSVs in 29 patients were treated. All patients have reached six-month follow-up; the average number of postoperative days is 260. No adverse events have been reported. The Primary Closure Rate is 96.7%.ConclusionMechanochemical ablation appears to be safe and efficacious. The ClariVein® technique eliminates the need for tumescent anaesthesia. The great majority of incompetent GSVs can be treated with this technique.

This study examined the ability of prior academic performance, proxy efficacy, and academic self‐efficacy to predict college academic performance. Participants (N = 202) completed a modified version of the Teacher Collective Efficacy scale (Goddard, 2001), the Academic Self‐Efficacy scale (Elias & Loomis, 2000), and a demographic questionnaire. Prior performance was predictive of both academic self‐efficacy beliefs and college performance. Hierarchical regression analysis indicates that academic self‐efficacy beliefs explain a significant amount of unique variance beyond past performance in predicting college performance. Proxy efficacy did serve as a predictor of student academic self‐efficacy, but did not serve as a predictor of college performance. Implications for instructors, as well as for future research, are discussed.

This study showed that endovenous MOCA, using polidocanol, is feasible and safe in the treatment of GSV incompetence. Larger studies with a prolonged follow-up are indicated to prove the efficacy of this technique in terms of obliteration rates.