Knowledge Sharing Self-efficacy and Academic Entitlement as Predictors of Research Competence among Postgraduate Students at the College of Education

Objective: The purpose of this study was to investigate the correlation between research competence (RC) and both Knowledge Sharing Self-Efficacy (KSSF) and academic entitlement (AE), check the difference between male and female in research competence, Knowledge Sharing Self-Efficacy and academic entitlement, and the disclosure of the relative contribution of Knowledge Sharing Self-Efficacy and academic entitlement in predicting the Research competence of postgraduate students. Method: Participants of 205 postgraduate students were conveniently (male=66, female =139) participated were conveniently collected through a Web-based Google forms from the different universities of Kingdom of Saudi Arabia, utilized instruments included the Research competence scale prepared by the researchers, Knowledge Sharing Self-Efficacy sharing prepared by the researchers, and academic entitlement scale prepared by the researchers. Results: research competence is found to have a statistically significant positive correlation (P \u3c 0.01) with Knowledge Sharing Self-Efficacy, and negative correlation (P \u3c 0.01) with academic entitlement, Significant differences (P \u3c 0.01) were found between male and female in research competence and Knowledge Sharing Self-Efficacy for the benefit of female, significant differences (P \u3c 0.01) were found between male and female in academic entitlement, regression analysis revealed that academic entitlement and Knowledge Sharing Self-Efficacy were significant predictors of research competence among postgraduate students at the College of Education. Thus, results were discussed in light of the findings of the research. Conclusion: Our study suggests that academic entitlement are risk factors for research competence, therefore, there are major differences between male and female with academic entitlement, Research competence, and Knowledge Sharing Self-Efficacy. Future studies will need to consider understanding these differences

Natural Radioactivity of Ground Water in Some Areas in Aden Governorate South of Yemen Region

This paper presents the concentrations of naturally occurring radionuclides 226Ra, 232Th and 40K measured in Groundwater collected from Aden Governorate South of Yemen Region using gamma spectroscopy. Thirty-seven Groundwater samples were collected from four areas in Aden Governorate. The average activity concentrations for groundwater from Beer Ahmed area were 1.60 Bql−1, 1.25 Bql−and 16.90Bql−1 for 226Ra, 232Th and40K respectively and from Beer Fadle area were 1.45Bql−1, 0.87Bql−1 and 19.8Bql−1 for 226Ra, 232Th and 40 K, respectively, while that for groundwater samples from Daar-saad area were 1.27 Bql−1, 1.18Bql−1 and 18.28 Bql−1 for 226Ra, 232Th and 40 K, respectively and Al-Masabian area were 1.55Bql−1, 1.421Bql−1 and 19.03Bql−1 for 226Ra, 232Th and 40K respectively. Also, annual effective dose equivalent of ingestion of these waters was calculated. The results showed that the annual dose equivalent obtained in the present study was much higher than the recommended value (0.1mSv year−1) as reported by WHO. The results were compared with those for drinking water

Comparative study of the natural radioactivity of some selected rocks from Egypt and Germany

209-215 The radioactivity contents of various radionuclides in rocks play an important role in health physics and geo-scientific research. The naturally occurring radionuclides 226Ra, 232Th and 40K are the main sources of radiation in soil and rocks from which traditional building materials are derived. These radionuclides pose exposure risks externally due to their gamma-ray emissions and internally due to radon and its progenies, which emit alpha particles. The activity concentration (Bq/kg) in igneous and metamorphic rock samples from different locations in Egypt and Germany has been analysed. The concentration values of samples for 226Ra, 232Th and 40K were found in the range of 3.9 : 57.4, 3.2 : 53.4 and 202 : 1211 in Egypt and 5.1 : 76, 3.4 : 70 and 10 : 2070, respectively in Germany. Even though these radionuclides are widely distributed, their concentrations depend on the local geological conditions. </smarttagtype

Assessment of radon-222 concentrations and exhalation rates of rocks and building materials

287-291 One hundred samples were collected from two regions (Bir El-Sid and Wady El-Gemal ) in the Nile Valley. It contain various types of igneous and metamorphic rock samples (acidic dykes, intermediate dykes, basic dykes, serpentinite, metagabbro, menalge). Another set of samples were collected from different regions of Germany. Samples were analyzed and the concentrations in Bq/kg dry weight of radium were determined by gamma-ray spectrometry using hyper-pure germanium (HPGe) detector. A direct method is used to measure 222Rn emanated from the samples, which was analyzed in laboratory using the portable radon monitor Prassi. 222Rn activity concentrations (Bq/m3) were in the range from 36.1± 2 to 96.4 ± 6, 17.8 ± 3 to 73.6 ± 4 and 18.0 ± 2 to 188.1± 15 Bq/m3 for samples collected from Bir Elsid, Wadi El-Gemal and samples from Germany respectively. The corresponding values of exhalation rates were from 0.0012 to 0.004, 0.005 to 0.015 and 0.007 to 0.0069 Bq/gs for these areas respectively. </smarttagtype