高中物理概念课堂教学观测量表的构建与实践研究

基于建构主义学习、教学理论以及课堂观察LICC范式,构建了高中物理课堂概念教学观测量表,采用两两比较法对各评价指标的权重进行了赋值,运用所构建的课堂观测量表对高中物理课堂概念教学进行了测评,最后采用模糊综合测评模型对课堂教学观测结果进行测评.研究结果表明,所构建的高中物理概念课堂教学观测量表能够有效地反映高中物理概念教学的实施效果.

A型肉毒毒素联合真皮内超减张缝合治疗病理性瘢痕的效果

目的:探讨A型肉毒毒素联合真皮内超减张缝合治疗病理性瘢痕的效果。方法:回顾性分析赣州市人民医院2021年3月—2023年3月收治的62例病理性瘢痕患者的临床资料,根据不同治疗方法分为两组,各31例;其中对照组采用真皮内超减张缝合,试验组采用A型肉毒毒素联合真皮内超减张缝合。比较两组温哥华瘢痕评价量表(VSS)评分、观测者瘢痕评价量表(OSAS)评分、瘢痕宽度、瘢痕厚度、切口不良反应发生情况及复发情况。结果:术前,两组OSAS评分、VSS评分、瘢痕宽度、瘢痕厚度比较,差异均无统计学意义(P>0.05);术后6个月,两组OSAS评分、VSS评分、瘢痕宽度、瘢痕厚度均低于术前,且试验组均低于对照组,差异均有统计学意义(P<0.05)。两组术后切口不良反应发生率比较,差异无统计学意义(P>0.05);试验组复发率为3.23%,低于对照组的19.35%,差异有统计学意义(P<0.05)。结论:A型肉毒毒素联合真皮内超减张缝合可有效促进病理性瘢痕患者切口愈合,提高切口美观度,减轻瘢痕形成程度,降低复发率。

金川水电站导流洞进口爆破振动控制和监测

针对金川水电站导流洞进口边坡地质条件差和高陡边坡对爆破振动敏感的特点,使用数码电子雷管和逐孔起爆技术控制爆破振动峰值,严格执行“先坡后洞”的设计理念,通过质点振动速度、锚索应力计、多点位移计和表观测量等监测手段,及时掌握质点振动速度峰值和边坡位移变形情况,确保了边坡安全稳定,也为川西地区类似地质条件的边坡基坑开挖施工提供借鉴。

基于实证的课堂观察与评议

基于实证的课堂观察,要遵循教师发展的职业阶段特征,确定观察视域、观察项目和观察内容,设计开发易于操作、便于分析的课堂观测量表,促进教师教学行为的改变,让学习真实地在课堂上发生,让教师真正地关注到每一个学生。运用现代信息技术支撑下的弗兰德斯师生语言互动分析系统,对课堂教学做精准观察与分析诊断,推动课堂教学改革。

Effect of Rating Scales and Test Parts of Body on the Evaluation Results of Fabric-evoked Prickle

The effect of rating scales and test parts of body on the fabric-evoked prickle evaluation results are studied by carrying out subjective evaluation tests under controlled environment conditions （24 4±1）℃, （65 =l= 5） %RH. Ten college female students aged about 20 were chosen as the subjects, who have participated a preliminary training on subjective prickle evaluation. The prickle of a range of 9 light-weight worsted woven wool and wool blend fabrics and a cotton fabric were tested by using a 1 - 5 rating scale and using a 0 - 10 rating scale respectively at different test parts of body respectively such as forearm, upper arm ball and neck back. The test results were statistically analyzed. It is found that there is a significant correlation coefficient between the evaluation results of using the 1 - 5 rating scale and of using the 0- 10 rating scale. It is also found that there are highly significant correlation coefficients between the evaluation results of using the forearm prickle test and the neck back prickle test, between the evaluation results of using the neck back prickle test and the upper arm ball prickle test, and between the evaluation results of using the forearm prickle test and the upper arm ball prickle test. It is suggested that the forearm prickle test is preferable in evaluating fabric-evoked prickle for its convenience and sensitivity.

Characterization of turbulent flux transfer over a Gobi surface with quality-controlled observations

This study evaluates the spatial distributions in the quality of momentum and sensible heat fluxes,and determines the turbulent transfer characteristics with quality-controlled observations.The research is based on raw turbulence data collected over a Gobi surface in the Dunhuang area in June 2004.The results indicate that part of the momentum fluxes are of poor quality in the daytime and nighttime.The poor quality of the momentum fluxes in the daytime is mainly attributed to the development of turbulence.The footprint reveals that,in general,the momentum fluxes and sensible heat fluxes can be measured well in the east and west upwind sectors under unstable conditions.The relationship between the non-dimensional standard deviation of the wind components and atmospheric stability follow the "1/3 power law",which supports the Monin-Obukhov similarity theory.Moreover,this study identifies a clear disturbance in the measurements surrounding the Gobi surface.The momentum roughness length of z0m=0.59 mm is determined after excluding such disturbance,and the additional resistance during the daytime is proposed to be an average of 3.1,although its actual value is highly scattered.This study discusses the applicability of several thermodynamic parameterization schemes for the Gobi surface.The results show that the scheme κB-1=3.1 can represent well the summer diurnal turbulent heat transfer.

Analysis of observations on the urban surface energy balance in Beijing

The 1-year（2009-2010） measurements are analyzed of the urban surface energy balance（SEB） obtained from the sensors located at three vertical layers of a 325-m tower in downtown Beijing.Results show that：（1） The measurements from the 325-m tower represent the SEB characteristics of the cities located in semi-humid warm-temperate continental monsoon climate zone.In a typical hot and rainy summer,cold and dry winter,the measured Bowen ratio is minimum in summer and maximum in winter.The Bowen ratio measured at 140 m for spring,summer,autumn,and winter are 2.86,0.82,1.17,and 4.16 respectively.（2） At the height of 140-m（in the constant flux layer）,the noontime albedo is ~0.10 for summer,~0.12 for spring and autumn,and ~0.14 for winter.The ratios of daytime sensible heat flux,latent heat flux,and storage heat flux to net radiation are 0.25,0.16,and 0.59 for clear-sky days,and 0.33,0.19,and 0.48 for cloudy days respectively.（3） Under clear-sky days,the nighttime sensible heat flux is almost zero,but the latent heat flux is greater than zero.For cloudy days,the nighttime sensible heat flux is slightly greater than the latent heat flux in winter.The nighttime upward heat flux is presumably due to the anthropogenic release（mainly latent heat for summer,while latent and sensible heat for winter）.

探讨耳垂瘢痕疙瘩切除术中的美学修复方法

目的探讨耳垂瘢痕疙瘩切除术中,尽可能切除病变同时又可保留耳垂美学形态的修复方法。方法回顾性分析自2019年1月至2021年1月,四川省人民医院整形外科收治的50例耳垂瘢痕疙瘩患者,针对耳垂瘢痕疙瘩的形态、大小进行分类,采取保留耳垂形态的手术方法切除,术后随访1年,计算有效率、复发率,采用患者和观测者瘢痕评价量表(patient and observer scar assessment scale,POSAS)比较治疗前及治疗后1年患者瘢痕的轻重程度。结果所有患者手术切口均一期愈合,其中35例治愈,7例显效,8例无效(均复发)。有效率为84%,复发率为16%,治疗后POSAS评分低于治疗前(P<0.05),即对于瘢痕的客观描述以及患者主观的感受均有明显改善。结论针对耳垂瘢痕疙瘩的大小、侵蚀范围采取相应保留耳垂形态的手术治疗,疗效可靠且最大限度地保留了耳垂形态,患者主观的感受也得到了明显的改善。