Research self-efficacy is of great significance for teachers to improve their interest and achievements in scientific research.In this study,261 elementary teachers were surveyed through online questionnaires to under...Research self-efficacy is of great significance for teachers to improve their interest and achievements in scientific research.In this study,261 elementary teachers were surveyed through online questionnaires to understand their research self-efficacy.The results showed that most elementary teachers have good research self-efficacy;education background,years of teaching,research environment,and attitude toward research all had influence on the research self-efficacy of elementary teachers.Based on this situation,schools should make efforts,such as improving communication,providing financial support,establishing a scientific research support center,and helping teachers under unfavorable situations.For elementary teachers,they should realize the importance of education research and improve their research literacy。展开更多
In this study,an assessment scale for evaluating the experimental design ability of elementary science teachers was constructed based on primary trait analysis.This assessment scale contains three first-level indexes ...In this study,an assessment scale for evaluating the experimental design ability of elementary science teachers was constructed based on primary trait analysis.This assessment scale contains three first-level indexes and eleven second-level indexes.The corresponding weights of indexes were determined by the objective weighting method.The scores of all the descriptions of the indexes were also assigned.After a trial test,this assessment scale was verified to be reliable and valid for evaluating the experimental design ability of elementary science teachers.展开更多
Coagulation-based pre-treatment efficiency of high strength digestate of food waste(HSDFW) anaerobic digestion is negated by organic ligand-catalyzed decomposition of coagulants. In this study, an efficient HSDFW pre-...Coagulation-based pre-treatment efficiency of high strength digestate of food waste(HSDFW) anaerobic digestion is negated by organic ligand-catalyzed decomposition of coagulants. In this study, an efficient HSDFW pre-treatment method, magnetic seeds(MS) coagulation, was employed by using highly stable Keggin Al_(30) nanocluster(PAC_(30)), MS and polyacrylamide(PAM), and its operation was optimized by evaluating the performance of removing turbidity, total suspended solids(TSS), chemical oxygen demand(COD), and total phosphorous(TP) phosphate. Results showed that at the optimum dosage of 4.82 g/L, PAC_(30) demonstrated excellent removals as high as 98.93% ± 0.1% of turbidity, 98.04% ± 0.1% of TSS, 58.28% ± 0.3% of total COD, 99.98% ± 0.01% of TP and 99.50% ± 0.01% of dissolved phosphate, respectively. Apparent molecular weight(AMW) and three-dimensional excitation-emission matrix(3 D-EEM) fluorescence spectroscopy analyses demonstrated more efficient removal of dissolved organic matter(DOM), particularly non-biodegradable and hydrophobic components by PAC_(30) than commercial coagulant. The sedimentation was much improved from 40 min by coagulation/flocculation to about 5 min settling by MS coagulation. The PAC_(30) based magnetic coagulation(MC) presents theoretical guidance on a cost-effective and much less footprint pre-treatment alternative for high strength wastewater.展开更多
Current therapies for obesity and related complications have been shown to have limited benefits,including unsatisfactory weight loss and poor metabolic improvement.With recent developments in bariatric surgery,promis...Current therapies for obesity and related complications have been shown to have limited benefits,including unsatisfactory weight loss and poor metabolic improvement.With recent developments in bariatric surgery,promising advancements have been made in clinical and scientific research,particularly in the management of obesity and diabetes.Vertical sleeve gastrectomy(VSG)has become increasingly popular due to its safety,simplicity,展开更多
基金The Introduce Talent Foundation of Wenzhou University(135010120719).
文摘Research self-efficacy is of great significance for teachers to improve their interest and achievements in scientific research.In this study,261 elementary teachers were surveyed through online questionnaires to understand their research self-efficacy.The results showed that most elementary teachers have good research self-efficacy;education background,years of teaching,research environment,and attitude toward research all had influence on the research self-efficacy of elementary teachers.Based on this situation,schools should make efforts,such as improving communication,providing financial support,establishing a scientific research support center,and helping teachers under unfavorable situations.For elementary teachers,they should realize the importance of education research and improve their research literacy。
基金Introduce Talent Foundation of Wenzhou University(135010120719)College Students Innovative Entrepreneurial Training of Wenzhou University(JWSC2019023).
文摘In this study,an assessment scale for evaluating the experimental design ability of elementary science teachers was constructed based on primary trait analysis.This assessment scale contains three first-level indexes and eleven second-level indexes.The corresponding weights of indexes were determined by the objective weighting method.The scores of all the descriptions of the indexes were also assigned.After a trial test,this assessment scale was verified to be reliable and valid for evaluating the experimental design ability of elementary science teachers.
基金supported by the National Key Research and Development Program of China (No. 2018YFD1100600)the Program of China-Sri Lanka Joint Center for Water Technology Research and Demonstrationthe Chinese Government Scholarship Program (CSC No. 2018SLJ023250)。
文摘Coagulation-based pre-treatment efficiency of high strength digestate of food waste(HSDFW) anaerobic digestion is negated by organic ligand-catalyzed decomposition of coagulants. In this study, an efficient HSDFW pre-treatment method, magnetic seeds(MS) coagulation, was employed by using highly stable Keggin Al_(30) nanocluster(PAC_(30)), MS and polyacrylamide(PAM), and its operation was optimized by evaluating the performance of removing turbidity, total suspended solids(TSS), chemical oxygen demand(COD), and total phosphorous(TP) phosphate. Results showed that at the optimum dosage of 4.82 g/L, PAC_(30) demonstrated excellent removals as high as 98.93% ± 0.1% of turbidity, 98.04% ± 0.1% of TSS, 58.28% ± 0.3% of total COD, 99.98% ± 0.01% of TP and 99.50% ± 0.01% of dissolved phosphate, respectively. Apparent molecular weight(AMW) and three-dimensional excitation-emission matrix(3 D-EEM) fluorescence spectroscopy analyses demonstrated more efficient removal of dissolved organic matter(DOM), particularly non-biodegradable and hydrophobic components by PAC_(30) than commercial coagulant. The sedimentation was much improved from 40 min by coagulation/flocculation to about 5 min settling by MS coagulation. The PAC_(30) based magnetic coagulation(MC) presents theoretical guidance on a cost-effective and much less footprint pre-treatment alternative for high strength wastewater.
基金supported by the National Natural Science Foundation of China(81370938)Shanghai Municipal Commission of Health and Family Planning(XYQ2011002)+2 种基金Shanghai Science and Technology Committee(11PJ1402000)Shenkang Hospital Development Center(SHDC12012220)the ‘‘Strategic Priority Research Program” of the Chinese Academy of Science(XDB13030500)
文摘Current therapies for obesity and related complications have been shown to have limited benefits,including unsatisfactory weight loss and poor metabolic improvement.With recent developments in bariatric surgery,promising advancements have been made in clinical and scientific research,particularly in the management of obesity and diabetes.Vertical sleeve gastrectomy(VSG)has become increasingly popular due to its safety,simplicity,