以动手能力培养为导向的植物学实验教学改革

植物学实验是实践性很强的一门基础学科,提高学生动手能力和观察能力是植物学实验教学的重要任务。基于辽宁师范大学植物学实验教学中存在的问题,在实践基础上对实验教学内容和考核评价方式进行了完善和优化,重构了实验教学体系。旨在充分调动学生植物学学习的积极性和主动性,提高学生动手能力、观察能力和综合素质。

止汗除臭产品功效评估方法研究

目的:探索止汗除臭产品功效评价方法。方法:30名经过培训入选的评判者,用盲法对入选的10名受试者实验区在应用止汗除臭产品前,以及应用后8 h进行腋窝气味评估,对照区不使用产品,对照区和实验区随机分布于受试者的左腋窝及右腋窝。受试者进行止汗效果主观评估。方法是为受试者提供新的专用垫片,评判者对对照区及实验区专用垫片转移的腋窝气味进行气味评估,受试者自我主观评估止汗效果。统计分析使用止汗除臭产品前后,受试者腋窝气味变化以及止汗效果的主观评估,得出除臭率。并通过重复性实验进一步对结论进行验证。结果表明,两次实验均显示,应用止汗除臭产品后,除臭率、止汗效果均有较好的重现性。结论:腋窝气味评估法、止汗效果主观评估是止汗除臭产品功效评价的较便捷、完善的方法.

Efficacy Evaluation Method of Hair Removal Cream

To explore the efficacy evaluation method of depilatory cream.60 subjects were selected as subjects,and statistical analysis was carried out on the depilation effect of large samples.The hair was removed with a razor in the control area and with depilation cream in the sample area,Antera 3D skin imaging analyzer was used to image the experimental area before and after the experiment,and the hair growth was dynamically monitored at 7,14,21 and 28 days,measure the length of hair with instrument and measure the number of people.The hair length change rate and hair inhibition rate were dynamically monitored in 28 days.The hair length change rate was-10.5%and hair inhibition rate was 93.3%after 28 days,more intuitive display of the product depilation effect,so as to determine the efficacy of depilation products evaluation method.