a bstract background: nurses are at risk for symptoms of compassion fatigue (cf) and burnout (bo). social support plays an important role in predicting cf and bo. this study was performed to determine the prevalence of the symptoms of cf and bo and the role of perceived social support in predicting these symptoms in iranian nurses. materials and methods: using a correlational descriptive survey...

This study explored corrective feedback (CF) types and their relationship to L2 learners’ intelligence types. Participants were 60 intermediate L2 learners aged 18-29 in Isfahan, Iran. Based on their intelligence types as intrapersonal and interpersonal, the participants were divided into 2 groups. McKenzie’s MI Inventory (1999) and a researcher-designed questionnaire on CF types were employed....

Avocado fruit can be severely damaged by Scirtothrips perseae (Thysanoptera: Thripidae) in southern California. Scirtothrips perseae is found on leaves and fruit, but its prevalence on one versus the other substrate has not been documented. In this study, the occurrence and infestation levels of S. perseae on avocado leaves and fruit during late spring and summer were compared at three sites in...

Our search for new metabolites biosynthetically related to fusicoccin with potent plant growth-stimulating activity from the culture filtrate of Fusicoccum amygdali F6 resulted in the isolation of a new derivative of fusicoccin J, as well as fusicoccin J and 16-O-demethyl 3-epifusicoccin J. Its structure was analyzed by 600 MHz NMR spectrometry and identified as 16-O-demethyl fusicoccin J. The ...

Chitosan is an abundant and renewable polysaccharide, its derivatives exhibit attractive bioactivities and the wide applications in various biomedical fields. In this paper, two novel cationic chitosan derivatives modified with quaternary phosphonium salts were successfully synthesized via trimethylation, chloride acetylation, and quaternization with tricyclohexylphosphine and triphenylphosphin...