Length-weight relationships of Garra rufa, in the Tigris and Persian Gulf basins of Iran

Garra rufa, a bottom dwelling freshwater fish and native to the Middle East, is distributed in the southwestern of Iran and the Tigris basin. Considering the importance of length-weight relationships data of a species in different habitats, the length-weight relationship of G. rufa from 13 rivers in the Persian Gulf and the Tigris basins was explored. The value of exponent b ranged from 2.74 to 3.19 with average of 2.99 in the Tigris basin and 2.96 in the Persian Gulf basin which was in normal range (2.5-3.5). As the length-weight parameters were concluded for each location separately, this information would be useful for further population dynamics researches

Psychometric Properties of Professor-Student Rapport Scale in Medical Sciences Students

Introduction: The quality of the professor-student relationship can be effective on teaching and students` performance. A valid questionnaire can help researchers in this field. The purpose of this study was to investigate the psychometric characteristics of Professor-Student Rapport Scale. Methods: In a descriptive-correlational study and more precisely, test validation, 497 students of Shahid Beheshti University of Medical Sciences were selected by multistage random sampling method and completed Wilson and Ryan`s Professor-Student Rapport Scale and Marsh`s Student Evaluation of Educational Quality Questionnaire. The collected data were analyzed using exploratory factor analysis, confirmatory factor analysis, predictive validity and internal consistency. Results: The results showed that the scale has a two-factor structure that explains 62.15% of the variance. Confirmatory factor analysis also confirmed this structure. The internal consistency of the scale with the calculation of Cronbach's alpha for perceptions of teacher and student engagement was 0.86 and 0.92, respectively, and the split-half coefficients were 0.88 and 0.92, respectively. Perceptions of teacher subscale could predict the educational quality. Conclusion: Professor-Student Rapport scale had a good validity and reliability in the sample of medical sciences students and can be used as a precise instrument in this regard

Length-weight relationships of Garra rufa, in the Tigris and Persian Gulf basins of Iran

Garra rufa, a bottom dwelling freshwater fish and native to the Middle East, is distributed in the southwestern of Iran and the Tigris basin. Considering the importance of length-weight relationships data of a species in different habitats, the length-weight relationship of G. rufa from 13 rivers in the Persian Gulf and the Tigris basins was explored. The value of exponent b ranged from 2.74 to 3.19 with average of 2.99 in the Tigris basin and 2.96 in the Persian Gulf basin which was in normal range (2.5-3.5). As the length-weight parameters were concluded for each location separately, this information would be useful for further population dynamics researches