清凉润喉片功效学研究

目的:通过功效实验来观察清凉润喉片的保健功效作用。方法:通过抗炎试验、镇痛试验、对免疫功能的影响试验确定清凉润喉片的功效与主治。结果:清凉润喉片有明显的抗炎、镇痛作用。无明显促进正常小鼠、免疫力低下小鼠免疫力作用。结论:采用该方法确定清凉润喉片的功效与主治,操作简便、准确可靠,为清凉润喉片的临床试验提供科学的理论依据。

金钗石斛养胃保健口服液的工艺优化及功效学分析

为优化金钗石斛养胃保健口服液制备工艺,并初步探索口服液对胃粘膜的保护作用,本研究以口服液中多糖、党参炔苷、石斛碱的相对含量作为考察指标,通过单因素考察及正交设计法优化口服液的制备工艺,采用急性胃粘膜损伤酒精模型对金钗石斛养胃保健口服液进行功效学研究。结果显示,金钗石斛养胃保健口服液的配方为金钗石斛8 g、党参32 g、黄芪32 g、白术12 g、麦冬10 g、北沙参10 g、山楂10 g,可修复胃粘膜损伤。正交设计优化口服液的制备工艺结果为:加水量为15倍,提取时间为30 min,提取次数为3次。由此得出结论,优化后的口服液制备工艺可行、可靠;通过药效学实验,证明选定的配方具有明显的胃粘膜保护作用。本研究将得出金钗石斛养胃保健口服液的最优化制备工艺,并能确定口服液保护胃粘膜的功效。

The Efficacy of Peer Feedback in Turkish EFL Students’ Writing Performance

The overarching aim of this study is to find out the effects of peer feedback on Turkish EFL learners at pre-intermediate level. More specifically, the researcher sought to probe the strategies most suitable to these students by motivating them to scrutinize each other’s writings and develop their own perceptions of the advantages of becoming more critical of their writing. By addressing these aims and objectives, the researcher hoped to discover the advantages and effects of peer feedback in improving the writing skills of these students. A mixture of both quantitative and qualitative methods was considered appropriate to meet the needs of research. A questionnaire on attitudes and writing tests were used to collect primary data for the study in order to gain information about the needs of the students and the suitable strategies required for peer reading, examining, and giving feedback. Semi-structured interviews were also conducted to examine the students’ perceptions of peer feedback. Results of this study revealed that the peer feedback process helped learners in improving their writing performance as a result of which the students had a positive attitude towards using peer feedback in EFL classrooms. Based on the findings, implications for foreign language （FL） writing classes and suggestions for future studies are presented.