The purpose of this study was to examine perceived hindrances encountered by sport coaches in the Gauteng Province of South Africa. A total of 224 sport coaches (122 males and 102 females) were purposively recruited to participate in this study. An exploratory factor analysis was used to assess the factor structure of the Perceived Hindrance Scale. The results of this study indicated the follow...

OBJECTIVES To discover how much research doctors in our area do; to describe their attitudes to research; and to evaluate the hindrances to developing research that they found. DESIGN Cross-sectional, descriptive study. SETTING Area 7 of Primary Care, Madrid. PARTICIPANTS Area 7 doctors. MAIN MEASUREMENTS An anonymous self-administered questionnaire was designed in order to gather the f...

A series of perylenetetracarboxylic diimides (PDIs) dimers with slipped “face-to-face” stacked structure and different substituents at the bay positions have been synthesized and the molecular structures are characterized by 1H NMR, MALDI-TOF and elemental analysis. And different substituents at the bay positions of the PDI ring bring about various steric hindrances. These different steric hind...