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排序方式： 共有4538条查询结果，搜索用时 15 毫秒
91.
目的;通过对蝶鞍区鞍周神经血管断层解剖及毗邻结构的研究,为视交叉及其周围结构病变的影像学诊断和临床微创手术提供形态学数据。方法:选用20例成人湿性尸体头部标本,利用断层解剖技术,对视交叉区进行解剖和观察视交叉及其周围毗邻关系,测量视交叉的大小和角度等,获取视交叉及周围毗邻结构定性定量数据。结果:横断层显示视神经颅内段、视交叉和视束起始段的整体结构比较理想,上下毗邻结构较差;冠状和矢状断层显示视神经颅内段、视交叉和视束起始段的整体结构较差,显示毗邻结构良好,尤其是垂体、海绵窦等相关结构的显示特别理想。矢状断层能清晰显示视交叉和鞍结节的位置关系。结论:建议蝶鞍区及其周围毗邻结构的形态、位置关系的变化采用横断、矢状、冠状扫描进行综合评价。 相似文献
92.
Victoria Crisp 《Irish Educational Studies》2013,32(3):323-343
This research explored the measurement characteristics of two science examinations and the potential to use access arrangements data to investigate how students requiring reading support are affected by features of exam questions. For two science examinations, traditional and Rasch analyses provided estimates of difficulty and information on item functioning. For one examination, the performance of students eligible for support from a reader in exams was compared to a ‘norm’ group. For selected items a sample of student responses were analysed. A number of factors potentially making questions easier, more difficult or potentially contributing to problems with item functioning were identified. A number of features that may particularly influence those requiring reading support were also identified. 相似文献
93.
David A. Scott 《文物保护研究》2014,59(2):113-122
The use of colour in the metallographic examination of ancient metals is useful both for research and teaching purposes. Application of different optical methods of examination include: polarized light, with or without a first-order red compensator, and differential interference contrast microscopy (DIC). The use of DIC can be combined with the other techniques mentioned in the text for the examination of etched or unetched metal surfaces, which are best observed microscopically using a metallograph. Colour techniques are now used routinely in industrial metallography, and are available for a variety of metals and alloys. Colour tint etching can be used to enhance grain structure or different phases present in the metallic artefact which may not be visible in conventional etched samples, or which lack optical contrast. Many more applications of these techniques in the examination of ancient metals will be published in the literature as they become better known and second-hand equipment with DIC lenses enter the market at a price suitable for conservation laboratories to purchase them. 相似文献
94.
Ruth Mathew;Niveta Ramakrishnan;Fiona Boland;Teresa Pawlikowska;Jane C. Holland; 《Anatomical sciences education》2024,17(7):1495-1508
In modern medical curricula, embryology is typically taught through lectures, with a few institutions providing tutorials. The use of 3-D videos or animations enables students to study these embryological structures and how they change with time. The aim of this study was to assess the quality of cardiac embryology videos available on YouTube. A systematic literature review regarding the use of YouTube in teaching or learning cardiac embryology identified no papers that examined this specific question, and next, a systematic search of YouTube was performed. A total of 1200 cardiac embryology videos were retrieved using 12 specific search terms, with 370 videos retrieved under two or more search terms and excluded. A further 511 videos were excluded under additional, specific criteria. The remaining 319 videos were evaluated with the YouTube Video Assessment Criteria (UTvAC), with 121 rated as “useful.” Videos on YouTube are uploaded with a wide audience in mind, from children to cardiologists, and content control is imperfect. Multiple videos were identified as duplicates of videos from original channels, typically without attribution. While 49 videos showed operations or human material, none contained an ethical statement regarding consent, and only 10 of these included an age restriction or graphical advisory. While there are useful videos for medical students studying cardiac embryology on YouTube, intuitive search strategies will also identify many with irrelevant content and of variable quality. Digital competence and search strategies are not innate skills, so educators should teach students to assess information so as to avoid overload or “filter failure.” 相似文献
95.
Tyler R. Hall;Claudia F. Mosley;Joy Y. Balta; 《Anatomical sciences education》2024,17(2):422-432
The teaching of anatomy is relevant to many fields and anatomy teachers are in demand. Individuals with a graduate anatomy education are some of the most sought-after candidates to fill open teaching positions, but it is unclear as to what constitutes a graduate anatomy education. The purpose of this study was to investigate the components of a graduate anatomy education in the United States. A survey regarding the components of doctoral, master's, and graduate certificate programs was distributed to program directors and department chairs at 71 US institutions. Respondents indicated that there were 17 doctoral, 28 master's, and 9 graduate certificate programs. Students completed coursework in all the traditional anatomical subdisciplines in approximately half of doctoral (53%) and master's (57%) programs, though the number was lower in graduate certificate programs (22%). In comparison, within 12 programs (5 doctoral, 4 master's, and 3 graduate certificate) students were required to complete coursework in less than 2 anatomical subdisciplines. Required coursework outside the subdisciplines usually involved educational theories and practices (61% of programs), research methods (52% of programs), and/or physiology (37% of programs). Respondents indicated that most programs (81%) were designed to prepare their students to teach. It appears that graduate anatomy training likely involves gross anatomy coursework, coursework in another anatomical subdiscipline, and coursework in educational theories and practices. Given the likely decline in the number of doctoral-level anatomy programs from 21 to 19, serious consideration should be given to hiring teaching candidates with master's or graduate certificate training in anatomy. 相似文献
96.
97.
Tohru Murakami Yuki Tajika Hitoshi Ueno Sachiko Awata Satoshi Hirasawa Maki Sugimoto Yoshihiko Kominato Yoshito Tsushima Keigo Endo Hiroshi Yorifuji 《Anatomical sciences education》2014,7(6):438-449
It is essential for medical students to learn and comprehend human anatomy in three dimensions (3D). With this in mind, a new system was designed in order to integrate anatomical dissections with diagnostic computed tomography (CT) radiology. Cadavers were scanned by CT scanners, and students then consulted the postmortem CT images during cadaver dissection to gain a better understanding of 3D human anatomy and diagnostic radiology. Students used handheld digital imaging and communications in medicine viewers at the bench‐side (OsiriX on iPod touch or iPad), which enabled “pixel‐to‐tissue” direct comparisons of CT images and cadavers. Students had lectures and workshops on diagnostic radiology, and they completed study assignments where they discussed findings in the anatomy laboratory compared with CT radiology findings. This teaching method for gross and radiological anatomy was used beginning in 2009, and it yielded strongly positive student perspectives and significant improvements in radiology skills in later clinical courses. Anat Sci Educ 7: 438–449. © 2014 American Association of Anatomists. 相似文献
98.
伏涛 《渭南师范学院学报》2009,24(4):39-42
赵翼在科举之路上奋斗了二十多年,此后几乎一直生活在科举的阴影中,以赵翼的科举经历作为窗口可以管窥清代科举制度的一些方面,这样不仅可以促进对赵翼的生平及文学研究,而且可以促进文人心态的研究,还可以帮助我们提高对科举的认识,从制度层面上去认识科举的本质。 相似文献
99.
While the case method has been used in teaching social work practice for many years, its use as an evaluation tool is less common. This analysis describes the use of the case method in a comprehensive examination for MSW students in an Administration concentration. After a brief review of the issues related to student outcome assessment and the curriculum of the Administration concentration, a case debriefing framework is described, along with examples of student responses. The analysis concludes with a discussion of issues and implications for future research. 相似文献
100.