Evaluating a technology supported interactive response system during the laboratory section of a histology course          下载免费PDF全文

Vera D. Rinaldi  Nancy A. Lorr  Kimberly Williams 《Anatomical sciences education》2017,10(4):328-338

Monitoring of student learning through systematic formative assessment is important for adjusting pedagogical strategies. However, traditional formative assessments, such as quizzes and written assignments, may not be sufficiently timely for making adjustments to a learning process. Technology supported formative assessment tools assess student knowledge, allow for immediate feedback, facilitate classroom dialogues, and have the potential to modify student learning strategies. As an attempt to integrate technology supported formative assessment in the laboratory section of an upper‐level histology course, the interactive application Learning Catalytics^TM, a cloud‐based assessment system, was used. This study conducted during the 2015 Histology courses at Cornell University concluded that this application is helpful for identifying student misconceptions “on‐the‐go,” engaging otherwise marginalized students, and forming a new communication venue between students and instructors. There was no overall difference between grades from topics that used the application and grades from those that did not, and students reported that it only slightly helped improve their understanding of the topic (3.8 ± 0.99 on a five‐point Likert scale). However, they highly recommended using it (4.2 ± 0.71). The major limitation was regarding the image display and graphical resolution of this application. Even though students embrace the use of technology, 39% reported benefits of having the traditional light microscope available. This cohort of students led instructors to conclude that the newest tools are not always better, but rather can complement traditional instruction methods. Anat Sci Educ 10: 328–338. © 2016 American Association of Anatomists.  相似文献   

不同四棱豆品种豆荚比较形态学研究     

蒋向辉  谷合勇  陈东明  佘朝文 《怀化学院学报》2007,26(2):72-75

以四棱豆豆荚长、宽、高、豆夹宽高比、豆粒百粒重、每个豆荚豆粒数及豆荚特异性形状等指标为依据,对不同的四棱豆品种进行形态学研究,比较不同品种之间的亲缘关系.研究方法操作性强,结果可靠,对今后四棱豆的品种选育有重要的指导意义.  相似文献   

布儒斯特角显微镜和单分子膜表面形貌研究技术     

刘明贤  甘礼华  陈根  王小兰  陈龙武 《实验室研究与探索》2005,24(9):15-16

用布儒斯特角显微镜研究了花生酸分子成膜过程中单分子膜表面形貌的动态变化，发现在气／液界面上花生酸分子首先形成岛状分布，随着表面压的增加形成完整的单分子膜，而当表面压达到崩溃压后薄膜出现裂纹，分子膜重叠，形成多层膜。分析了花生酸单分子膜的形成机理。  相似文献   

“跨文化诗学”是中国比较文学的形态特征     

王向远 《北京师范大学学报(社会科学版)》2009,(3)

近30年来世界比较文学的重心已经移至中国。中国学者在研究方法上做了一系列新探索与新表述,提出了阐发法、原典实证法、三重证据法等一系列行之有效的方法,将"影响研究"与"传播研究"剥离,将"平行研究"优化为"平行贯通"研究,并在"译介学"与"翻译文学"、"世界文学学"与"宏观比较文学"、"形态学"与"变异学"等若干分支学科中做了新的建构与开拓。中国比较文学以其开阔的胸襟与宏大的视野,超越了法国学派、美国学派那样的学派局限,以东西方文化融合,文化视阈与文学研究融合,历史深度与现实关怀融合的方式,形成了"跨文化诗学"这一新的学术形态与特色,也使世界比较文学进入了第三个发展阶段。  相似文献   

庐山地质地貌景观多样性及其保护     

孙冬英 《九江师专学报》2007,26(3):96-98

庐山地质地貌景观类型具多样性特征，大致可分为：气候景观、气象景观、孑遗植物景观、河流景观、湖泊景观、地层景观、构造景观、地貌景观等类型。笔者建议对这些景观采取保护措施。  相似文献   

一种基于形态学强光束下的水下激光目标检测算法     

谢志远  杨述斌 《襄樊学院学报》2002,23(5):7-9

章采用数学形态学运算子对强光束下的水下激光图像进行处理，以去除强光束对目标检测的干扰，在此基础上采用直方图谷低值作为阈值对处理后的图像进行二值化，从而迅速得到目标图像，实现目标检测，实验证明这是一种快速有效的目标检测算法。  相似文献   

基于形态学的微目标的图像分割     

刘云如  郭竑辉 《娄底师专学报》2005,(5):82-84

提出了一种适于高分辨率可见微目标图像的分割算法,首先通过形态学运算强化微目标区域,利用阈值化分割并提取这些感兴趣区域;然后运用小波多尺度算子检测这些区域的边缘;最后再次采用形态学运算以获取目标区域边缘.仿真结果表明该方法能有效地将图像中的具有特定结构的微目标区域分割开来.  相似文献   

光敏核不育水稻花粉形态和育性稳定性及转换     

王永锐  陈宏光 《中山大学学报论丛》1989,(5)

对HPGMR农垦58A进行育性转换的稳定性研究,用扫描电镜观察其花粉外部形态。结果表明,长日诱导的值株及短日割蔸再生分蘖,在长日下均表现雄性不育,结实率分别为0.76％和0.00％;短日诱导及对照组植株雄性可育,结实率分别为40.59％和38.19％;长日诱导的花粉外形明显皱缩,不含内容物,属典败型花粉;而短日诱导的花粉除极少量皱折外,大多呈圆型而充实,内容物饱满。  相似文献   

辩证法理论研究综述文学研究     

闫顺利 《江苏广播电视大学学报》2006,17(5):20-24

辩证法是人们耳熟能详的范畴，也是常述常新的问题。辩证法的性质即哲学的性质，故对辩证法问题的探讨本质上是一个哲学观问题。当前，关于辩证法是什么以及辩证法同形而上学的关系问题为学界所热衷，但也歧义纷呈。如何划分辩证法的理论形态、坚持对辩证法的科学态度制约着辩证法理论研究的旨归．  相似文献   

Developmental dyslexia,neurolinguistic theory and deviations in brain morphology     

George W. Hynd  Richard M. Marshall  Margaret Semrud-Clikeman 《Reading and writing》1991,3(3-4):345-362

Although some form of central nervous system involvement is presumed, evidence establishing a relationship between dyslexia and neurological dysfunction has been correlational. Recently, neuroimaging and postmortem studies have begun to provide direct evidence implicating neuropathological structures in dyslexia. This article reviews computed tomography (CT) and magnetic resonance imaging (MRI) studies examining deviations in brain morphology which appear to be associated with neurolinguistic functioning. Methodological and technical issues are discussed. Based on their own and others research, the authors conclude that dyslexics show variations in specific brain regions, namely, reversed or symmetrical plana temporale (LR), smaller insular length bilaterally, and symmetrical frontal regions. Moreover, recent studies by the senior author and colleagues suggest that specific reading tasks are associated with specific variations in brain morphology. Symmetrical frontal widths was related to poorer passage comprehension, and reversed frontal area symmetry was related to poor word attack skills. Though many conceptual and technical issues remain unresolved, neuroimaging procedures appear to provide direct evidence supporting the importance of deviations in normal patterns of brain morphology in dyslexia.  相似文献