ABSTRACT
With improvements in information technology and expansion in education reforms, more innovative teaching reform programs have also been launched. Information technology has increased interest in the use of the flipped classroom innovative teaching model. In order to explore new ideas for the improvement of teaching, this paper focuses on the flipped classroom teaching approach with the integration of information technology. Micro-teaching is an important innovative flipped classroom teaching approach with a number of advantages as it is short, concise, and interesting, which therefore helps improve students' self-learning ability. Designing and preparing micro-teaching would become a prerequisite skill for college teachers. Based on the analysis of the entries in the "National Universities Micro-teaching Competition of Life Science", this paper explores the application of micro-teaching in life sciences teaching from the perspective of curriculum introduction, mode of presentation, teaching design, and other aspects of teaching. This information could serve as a guide to frontline college teachers to help them understand and master the skills of designing micro-teaching, so as to generate interest and improve learning efficiency among college students.
Subject(s)
Humans , Biological Science Disciplines , Curriculum , Learning , Students , UniversitiesABSTRACT
Objective Onto investigate the indoor quality control method for qualitatively detecting the laboratory indicators of TORCH infection (rubella virus IgG ,cytomegalovirus IgG and IgM ,toxoplasma IgG and IgM ) .Methods The statistical method , normal distribution data ,ratio and standard deviation of positive rate detected by the ELISA method were adopted ,1+2s was set as the out of control rules ,the semi Lerey‐Jennings quality control chart was drawn;the direct probability calculation method was a‐dopted for the non‐normal distribution data and small probability event .The testing data of 57 batches were retrospectively ana‐lyzed .Results The positive rate of rubella virus IgG was 86 .66% ,cytomegalovirus IgG/IgM positive rates were 98 .87% and 0 .13% ,toxoplasma gondii IgG/IgM positive rates were 2 .43% and 1 .71% ,the data of 151 ,3 ,5 ,176 ,27 samples had the critical value range of five indicators .The number of out of control was once for cytomegalovirus IgG ,once and 4 times for Toxoplasma gondii IgG/IgM .Conclusion The indoor quality control for the ELISA qualitative detection of TORCH infection can adopt the data of daily detection positive rate or negative rate for monitoring the false positive .The critical value range of specimens should be fur‐ther conducted the recheck or confirmation experiment .
ABSTRACT
Objective: To study the mechanisms and treatment of ischemia/reperfusion injury. Expression of E selectin was measured and the effect on suppression of E selectin by the Pyrrolidine Dithiocarbamate was investigated. Methods: Endothelial cells were exposed to hypoxia, then returned to reoxygenation condition. ELISA methods were used to detect expression of E selectin. Results: E selectin expression on hypoxia/reoxygenation stimulated endothelial cells increased, PDTC could suppress translation of E selectin effectively. Conclusion: It seems that E selectin may act as a critical factor. PDTC may prove beneficial in the treatment of ischemia/reperfusion injury.