关键词： computational thinking   culturally responsive teaching   self-efficacy   robotics   game design   equitable teaching  

摘要： This article examines teacher preparation and teacher change in engineering and computer science education. We examined culturally responsive teaching self-efficacy (CRTSE), culturally responsive teaching outcome expectancy (CRTOE) beliefs, and attitudes toward computational thinking (CT) as teachers participated in one of three treatment groups: robotics only, game design only, or blended robotics/game design. Descriptive data revealed that CRTSE gain scores were higher in the robotics only and blended contexts than in the game design only context. However, CRTOE beliefs were consistent across all treatment groups. In regard to CT attitudes, teachers' gain scores were higher in the game design only and blended contexts than in the robotics only context. In addition, there were differences by treatment group related to STEM (science, technology, engineering, and mathematics) practices, while cultural artifacts were evident in each learning environment. The results of this study reveal some variability by treatment type and inform future research on equitable practices in engineering and computer science education.

摘要： A look at the past, present and future

摘要： A summary of its uses in mitral valve surgery and coronary artery revascularisation

关键词： Robotics   Sacrocolpopexy   Pelvic organ prolapse  

摘要： Abdominal sacrocolpopexy is commonly performed for the surgical correction of pelvic organ prolapse (POP) in the USA. Over the last decade, fellowship programs have increased the number of these procedures performed robotically. Currently, there is a paucity of literature exploring the impact of fellowship training on outcomes of robotic-assisted sacrocolpopexy (RASC). We sought to explore the impact of an expert surgeon operating alone versus with a fellow on operative time and perioperative morbidity associated with RASC. This is an analysis of a retrospectively collected cohort of all RASCs performed to treat POP from June 2010 to August 2015 by a single attending surgeon. Outcomes were compared by expert surgeon alone and with a fellow. We identified 208 RASCs, of which 124 (59.6%) were performed by an expert surgeon alone and 84 (40.4%) with a fellow. Eight fellows were included, with a median of 7 cases (interquartile range 5-13.5). Cases with fellows were 31.1 min longer than an expert surgeon alone (155.6 vs 124.5 min, p < 0.001), a 25% increase. Increased operative time for fellows remained significant on multivariate regression (34.2 min, p < 0.001) after adjusting for case order postmenopausal status, hysterectomy, mid-urethral sling, and bowel injury. Years in fellowship did not have an impact on operative time (p = 0.80). Complications were seen in 34 women (16.4%). On univariate regression, fellows did not have an impact on complications (OR 1.49, 95% CI [0.65-3.43]), which was unchanged on multivariate regression (OR 0.628, 95% CI [0.26-1.54]). Prolapse recurrence was seen in 19 women (9.5%). Fellows had no impact on prolapse recurrence (OR 0.478, 95% CI [0.17-1.38]), which was unchanged on multivariate regression (OR 0.266, 95% CI [0.17-1.49]). When an expert surgeon operated together with a fellow, operative time increased by 34 min without increasing prolapse recurrence or complications.

关键词： Discrete mechanical systems   Second gradient continua   Fracture  

摘要： In a previous work, we considered a two-dimensional lattice of particles and calculated its time evolution by using an interaction law based on the spatial position of the particles themselves. The model reproduced the behaviour of deformable bodies both according to the standard Cauchy model and second gradient theory;this success led us to use this method in more complex cases. This work is intended as the natural evolution of the previous one in which we shall consider both energy aspects, coherence with the principle of Saint Venant and we start to manage a more general tool that can be adapted to different physical phenomena, supporting complex effects like lateral contraction, anisotropy or elastoplasticity.

关键词： Welding robot   Rigid-flexible coupling   Flexible joints   Vibration error  

摘要： The flexible factors in the large structure machine with large-scale movement make the rigid-flexible coupling become the key problem of research. Past research mostly focus on the flexibility of the link, ignoring the impact of joint flexibility. Through the dynamic analysis of simplified 3-link structure in space, different stiffness coefficients of flexible joint are given, and motion trajectory of robot's is observed, comparing the displacement of joint under rigid state. The Lagrange method is used to deduce the rigid-flexible coupling dynamic equation which takes the gravity term into consideration. By comparing the dynamic simulation results of ADAMS with those in the rigid state, it shows that the flexible joint has an impact on the movement of the system. Vibration amplitude of different stiffness coefficient is different, and the associated vibration exists between each other. The motion response of the system is relatively large and motion error varies along with the movement path in X, Y and Z, which lay the foundation for the research of control system.

关键词： education   programming   robotics   STEM  

摘要： We present an activity framed within the European Robotics Week event. Robotics and computational practice are ideal tools for developing science, technology, engineering, and mathematics (STEM) pedagogy. A modular and adaptive hands-on workshop is described in detail. The workshop is based on multiplatform educational robotics content as a first step into the robotics world. Three educational tools are used to introduce examples of robotics applications. The operational details, materials, and examples of activities for selected modules are presented with the expectation that all teachers can adapt these activities to their classes. Despite the small number of students, the experience delivered results that might be useful for other instructors to promote workshops with similar or identical content to generate further benefits. This study demonstrates that it is important to combine theory and practice and include fun tasks that intertwine the challenges of applying theory to problem solving. Furthermore, the results show how the same content can be deployed using three different robotics education tools.

摘要： Presents the President’s message for this issue of the publication.

关键词： 机器人  

ISBN: (纸本)9787564179687

摘要： 本书首先介绍机器人竞赛的缘起和国内外主要机器人赛事概况；其次针对2018江苏省大学生机器人竞赛十大类近40个竞赛项目，详细介绍各项目竞赛规则并提供相应的初步解决方案及部分项目技术报告，指导参赛队员设计机器人作品。