Teaching Practice: Effects on Knowledge,Skills and Attitudes of Students in Initial Training     

William H. L Young 《Asia-Pacific Journal of Teacher Education》1979,7(1-2):23-27

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An experimental study comparing a guided discovery method with two other methods of teaching a primary school science unit     

Rosita Young 《Research in Science Education》1971,1(1):59-78

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Gravity-oriented microfluidic device for uniform and massive cell spheroid formation     

Lee K  Kim C  Young Yang J  Lee H  Ahn B  Xu L  Yoon Kang J  Oh KW 《Biomicrofluidics》2012,6(1):14114-141147

We propose a simple method for forming massive and uniform three-dimensional (3-D) cell spheroids in a multi-level structured microfluidic device by gravitational force. The concept of orienting the device vertically has allowed spheroid formation, long-term perfusion, and retrieval of the cultured spheroids by user-friendly standard pipetting. We have successfully formed, perfused, and retrieved uniform, size-controllable, well-conditioned spheroids of human embryonic kidney 293 cells (HEK 293) in the gravity-oriented microfluidic device. We expect the proposed method will be a useful tool to study in-vitro 3-D cell models for the proliferation, differentiation, and metabolism of embryoid bodies or tumours.  相似文献   

Distributed fusion receding horizon filtering for uncertain linear stochastic systems with time-delay sensors     

Il Young Song  Vladimir Shin  Moongu Jeon 《Journal of The Franklin Institute》2012,349(3):928-946

A new distributed fusion receding horizon filtering problem is investigated for uncertain linear stochastic systems with time-delay sensors. First, we construct a local receding horizon Kalman filter having time delays (LRHKFTDs) in both the system and measurement models. The key technique is the derivation of recursive error cross-covariance equations between LRHKFTDs in order to compute the optimal matrix fusion weights. It is the first time to present distributed fusion receding horizon filter for linear discrete-time systems with delayed sensors. It has a parallel structure that enables processing of multisensory time-delay measurements, so the calculation burden can be reduced and it is more reliable than the centralized version if some sensors turn faulty. Simulations for a multiple time-delays system show the effectiveness of the proposed filter in comparison with centralized receding horizon filter and non-receding versions.  相似文献   

Assessment of planarity of the golf swing based on the functional swing plane of the clubhead and motion planes of the body points     

Kwon YH  Como CS  Singhal K  Lee S  Han KH 《Sports biomechanics / International Society of Biomechanics in Sports》2012,11(2):127-148

The purposes of this study were (1) to determine the functional swing plane (FSP) of the clubhead and the motion planes (MPs) of the shoulder/arm points and (2) to assess planarity of the golf swing based on the FSP and the MPs. The swing motions of 14 male skilled golfers (mean handicap = -0.5 +/- 2.0) using three different clubs (driver, 5-iron, and pitching wedge) were captured by an optical motion capture system (250Hz). The FSP and MPs along with their slope/relative inclination and direction/direction of inclination were obtained using a new trajectory-plane fitting method. The slope and direction of the FSP revealed a significant club effect (p < 0.001). The relative inclination and direction of inclination of the MP showed significant point (p < 0.001) and club (p < 0.001) effects and interaction (p < 0.001). Maximum deviations of the points from the FSP revealed a significant point effect (p < 0.001) and point-club interaction (p < 0.001). It was concluded that skilled golfers exhibited well-defined and consistent FSP and MPs, and the shoulder/arm points moved on vastly different MPs and exhibited large deviations from the FSP. Skilled golfers in general exhibited semi-planar downswings with two distinct phases: a transition phase and a planar execution phase.  相似文献   

Congenital atresia of the left main coronary artery in an infant     

Su Ye Sohn  Gi Young Jang  Byung Min Choi 《Journal of Zhejiang University. Science. B》2010,11(7):539-541

Congenital atresia of the left main coronary artery is a rare occurrence, and surgical revascularizationbypass graft is required. We here report a rare case of congenital coronary anomaly in an infant. A 10-month-old male infant was admitted to the hospital with heart failure symptoms. Echocardiographic examinations revealed mitral valve regurgitation and ischemic changes of the anterolateral papillary muscle and chordae. Coronary angiography showed atresia of the left main coronary artery with a severe hypoplastic left anterior descending artery and a circumflex coronary artery. Unfortunately, sudden cardiac arrest occurred after catheterization and the infant did not recover despite of immediate cardiopulmonary resuscitation. Further studies are needed to find a newer diagnostic method to detect coronary anomaly in an infant, and coronary angiography, if necessary, has to be performed very carefully.  相似文献   

Informed choice and deaf children: underpinning concepts and enduring challenges   总被引：3，自引：0，他引：3  

Young A  Carr G  Hunt R  McCracken W  Skipp A  Tattersall H 《Journal of deaf studies and deaf education》2006,11(3):322-336

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Mapping beliefs about teaching to patterns of instruction within science,technology, engineering,and mathematics     

Cheryl Allendoerfer  Denise Wilson  Mee Joo Kim  Elizabeth Burpee 《Teaching in Higher Education》2013,18(7):758-771

In this paper, we identify beliefs about teaching and patterns of instruction valued and emphasized by science, technology, engineering, and mathematics faculty in higher education in the USA. Drawing on the notion that effective teaching is student-centered rather than teacher-centered and must include a balance of knowledge-, learner-, community-, and assessment-centered learning environments; we use qualitative interview data to explore how faculty's reported beliefs about teaching are associated with their consideration of these four types of environments. Findings indicated that although a range of beliefs about teaching emerged, most were firmly located in knowledge-centered learning environments, with little or no focus on the remaining three learning environments. Furthermore, even patterns of instruction that were heavily student-centered were situated within a knowledge-centered learning framework. We argue that for student-centered instruction to be truly successful, faculty must consider all four learning environments in crafting and facilitating the classroom environment.  相似文献   

Mentoring in the virtual organization: keys to building successful schools and businesses     

Deborah Lavin Colky  William H. Young 《Mentoring & Tutoring: Partnership in Learning》2013,21(4):433-447

Mentoring can take on a whole new perspective when people have a common goal but are in different physical locations. The benefits of virtual mentoring, in other words, mentoring when the mentor and mentee are not geographically co‐located, and which occurs mainly by electronic communication, can be substantial. They include lowered costs, increased access to mentors, and no limitations on space, time, and location. There are also disadvantages to virtual mentoring. Notable among these is the lack of face‐to‐face communication, something that adds another dimension to understanding the tone and attitude of messages between mentors and mentees. This article not only defines and analyzes the concept of mentoring as performed in the virtual organization but also deals with phases of mentoring and types of mentors used in this relatively new work environment. The synthesis of the literature and the authors’ experience results in a list of keys to successful mentoring in the virtual organization. These are: trust, self‐motivation, flexibility, communication skills, and technological skills. In addition, implications for worldwide mentoring are discussed.  相似文献   

Book Reviews     

Lee Stewart Ed.D.  Christy M. Rhodes MS  William H. Young EdD  Deborah T. Carran  Teresa Craig Evans  Joan C. Fingon 《Mentoring & Tutoring: Partnership in Learning》2013,21(3):47-52

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