Hotly used in student-centered medical education worldwide, case based learning (CBL) is worthen with WeChat, the most popular communication app and is widely used in all walks of life. We have practiced several years combining WeChat and CBL in the clinical training of oral medicine for young doctors, promoting outcomes over traditional bedside training. This article’s objective is demonstrating the acceptability and merits of WeChat CBL in the clinical training of oral medicine for young doctor. A total of eighty young doctors and 2 tutors participated in this study for interns of a every 2-month training during January 2018 to 2020. The control group used clinical bedside mode; the experimental group used bedside plus WeChat CBL mode. The evaluations included participation passion, daily routine and final test. Ten clerkships and thirty residents were in same number respectively of experiment and control groups. The participants in the experimental group produced a higher degree of participation in discussions. The twice and above Q&A action percentage is 40% in experimental group rather than 25% in control group. Daily assessment and final examination scores in the experimental group were significantly higher than those in the control group (P < .001). WeChat CBL mode has a positive effect on students’ learning enthusiasm, assessments and evaluations in clinical training of oral medicine.
Previous work shows that long-wavelength light has a robust circadian rhythmic pattern in the expression of clock genes of chickens, whereas short-wavelength light leads to an arrhythmic oscillation of some clock genes (e.g., cClock, cCry1, cCry2, cPer2, and cPer3). However, knowledge about the consequences of LED lights on the physiological and behavioral phenotype was still not clear. This experiment hypothesizes that short-wavelength light disturbs chickens' eating rhythm and leads to the wrong time to eat, resulting in metabolic syndrome. "Meihuang" broilers were housed in monochromatic LED blue light, green light, yellow light, red light, or white light with a very low dose (15 lx). Multiply physiological parameters were measured and the 24-h eating behavior was determined. The effects of LED light on physiological status and behavioral phenotype showed a wavelength-dependent manner. Short-wavelength light significantly decreased the level of total triglycerides and total cholesterol but increased triiodothyronine concentration. Inversely, long-wavelength light increased the triglycerides and total cholesterol and reduced the level of triiodothyronine. Further, it was found that short-wavelength light significantly boosted body weight compared with long-wavelength light, despite equivalent levels of food intake. Short-wavelength light-induced 23.4% and 14.1% of food consumption during subjective nights, but long-wavelength light did not. These results imply that when chickens eat matters, not just what they eat. Thus, low as 15 lx of blue light exposure during the typical dark period is sufficient to lead an individual to eat at the "wrong" time, causing metabolic dysfunction. Blue light should be cautiously considered to be used in the poultry breeding process.
Objective. The aim was to detect effects of blue light on reducing the adverse effect of heat stress in thermal manipulation (TM) of broiler embryos by subjecting embryos to heat stress during incubation development. Methods. Eggs were assigned to four treatments in which the TM (thermal manipulation) was exposed to 40°C for 4 h daily during five successive days, if TM was operated. The treatments were (1) normal temperature with white lighting group (37°C+W), (2) normal temperature with blue lighting group (37°C+B), (3) thermal manipulation with white lighting group (40°C+W), and (4) thermal manipulation with blue lighting group (40°C+B). Results. Blue light significantly lowered MDA and corticosterone concentrations in the embryonic liver. Additionally, the damage of embryonic liver tissue caused by heat stress could be reduced by blue light. HSPs and HSFs gene expression of chicken liver were modulated by blue light significantly, whereas the effects were different, respectively. Moreover, blue light modulated liver antioxidant enzyme activity and their gene expression in embryonic liver significantly. However, blue light did not exert significant effects on body weight, late hatch rectal temperature and tibia length of hatched chicks. Conclusions. The results suggest that monochromatic blue light can reduce the content of MDA and corticosterone of broiler embryos in heat stress and increase the relative expression of SOD and CAT genes. Moreover, the monochromatic blue light may reduce the metabolic heat production of broilers during the embryonic stage, thus reducing the damage of broilers due to heat stress during the embryonic heat acclimation stage.
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