Exploring the concept of leadership from the perspective of physical therapists in Canada.

Purpose: To explore the concept of leadership from the perspective of physical therapists in Canada.

Methods: A quantitative, cross-sectional nationwide study was performed using a Web-based survey distributed to all members of the Canadian Physiotherapy Association (CPA) with a registered e-mail address (n=6,156). Frequency distributions and percentages were obtained for all leadership characteristics, and chi-square tests were performed, with significance set at p<0.

Effect of hydrophobic surfactant proteins SP-B and SP-C on phospholipid monolayers. Protein structure studied using 2D IR and beta correlation analysis.

We have applied two-dimensional infrared (2D IR) and betanu correlation spectroscopy to in-situ IR spectroscopy of pulmonary surfactant proteins SP-B and SP-C in lipid-protein monolayers at the air-water interface. For both SP-B and SP-C, a statistical windowed autocorrelation method identified two separate surface pressure regions that contained maximum amide I intensity changes: 4-25 mN/m and 25-40 mN/m. For SP-C, 2D IR and betanu correlation analyses of these regions indicated that SP-C adopts a variety of secondary structure conformations, including alpha-helix, beta-sheet, and an intermolecular aggregation of extended beta-sheet structure.