Math Shelf: A Randomized Trial of a Prekindergarten Tablet Number Sense Curriculum     

John Schacter  Jeff Shih  Charles M. Allen  Lina DeVaul  Amy B. Adkins  Taro Ito 《Early education and development》2016,27(1):74-88

Research Findings: Effective preschool mathematics instruction is especially important for low-income children. Previous research demonstrates that low-income children enter kindergarten behind their middle-income peers. They receive less mathematics support at home and from public preschools. The aim of this study was to test Math Shelf, a tablet intervention designed to improve at-risk preschoolers’ mathematics performance. A total of 100 children participated in a randomized controlled trial in a large urban Head Start center. Intervention students played Math Shelf on tablet computers for 6 weeks, whereas comparison students played the most downloaded and best reviewed preschool math apps on tablets for an equal amount of time. During game play, graduate student researchers supervised intervention and comparison students in separate rooms. Intervention and comparison groups did not differ on pretest assessments. Math Shelf students performed statistically significantly better (Cohen’s d = 0.57) than comparison students at posttest. Practice or Policy: Math Shelf results suggest that teachers can enhance low-income preschoolers’ mathematics knowledge in a relatively short amount of time by incorporating developmentally appropriate tablet interventions.  相似文献   

Super-resolution inpainting     

SHIHTimothyK. CHANGRong-chi 《浙江大学学报(A卷英文版)》2005,6(6):487-491

INTRODUCTION Video sequences can be interfered with by noise.When the noise ratio of a video is high,even though itis not possible to restore the original,to repair videoframes or damaged artifacts with visually good resultis a hopefully achievable goal(see example in Fig.3),especially for archival resources in digital museumprojects.One of the simplest but efficient mecha-nisms is presented in(Oliveira et al.,2001).The dif-fusion kernel can repair damages of small area with abarrier to …  相似文献   

Investigation of newly developed added damping and stiffness device with low yield strength steel     

Shih?Ming-hsiangEmail author  Sung?Wen-pei  Go?Cheer-germ 《浙江大学学报(A卷英文版)》2004,5(3):326-334

Energy dissipators, isolated-resistant and specific structural forms for earthquake resistance are popular topics in the research to improve shock-resistance. In this work, experimental methods were used to investigate the property of low yield strength steel. Carbon content in LYS material is lower than that in other steels; the ultimate stress is three times the yield stress. The ultimate elongation rate is about 62% and the ductility is 2–3 times that of A36 steel. In order to overcome some defects of ordinary use metallic dampers, the mechanical characteristic of low yield strength steel is used to develop added damping and stiffness for rhombic steel plate absorber. Test of the energy dissipation behavior for this newly developed device indicated that LYS could stably dissipate or absorb the input energy of earthquake. Then, the analytical model for the hysteretic behavior of this new device is proposed. Comparison of experimental data and numerical simulation results showed that this analytical model is suitable for simulating the hysteretic energy behavior of this new device.  相似文献   

Why do people use information kiosks? A validation of the Unified Theory of Acceptance and Use of Technology     

Yi-Shun Wang  Ying-Wei Shih 《Government Information Quarterly》2009

The importance of information kiosk development and implementation in the context of E-Government policies has been discussed in previous research. While many governments are today making considerable investments to implement information kiosks, previous research suggests that citizens may not use information kiosks in spite of their availability. However, the successful implementation of information kiosks depends significantly on whether or not citizens are willing to adopt the new information technology (IT). Therefore, based on the Unified Theory of Acceptance and Use of Technology (UTAUT), this study investigates the determinants of use behavior regarding information kiosks and the moderating effects of age and gender differences on the relationships between the determinants and behavioral intention/use behavior. Data collected from 244 respondents in Taiwan were tested against the research model using structural equation modeling techniques. The results partially support the applicability of the UTAUT in the context of information kiosks. The findings of this research provide several prominent implications for the research and practice of information kiosk development and implementation.  相似文献   

Computer-based collaborative problem-solving assessment in Taiwan     

Bor-Chen Kuo  Chen-Huei Liao  Kai-Chih Pai  Shu-Chuan Shih  Cheng-Hsuan Li  Magdalena Mo Ching Mok 《教育心理学》2020,40(9):1164-1185

Abstract

The current study explores students’ collaboration and problem solving (CPS) abilities using a human-to-agent (H-A) computer-based collaborative problem solving assessment. Five CPS assessment units with 76 conversation-based items were constructed using the PISA 2015 CPS framework. In the experiment, 53,855 ninth and tenth graders in Taiwan were recruited, and a multidimensional item response analysis was used to develop CPS scales and represent the students’ collaboration and problem solving performance. The results show that the developed H-A approach is feasible for measuring students’ CPS skills, and the CPS scales are also shown to be reliable. In addition, the students’ CPS performance scores are further explored and discussed under the PISA CPS framework.  相似文献   

University students’ perceptions of a holistic care course through cooperative learning: implications for instructors and researchers     

Peter Jen Der Pan  Gloria Huey-Ming Pan  Ching-Yieh Lee  Shona Shih Hua Chang 《Asia Pacific Education Review》2010,11(2):199-209

The benefits of cooperative learning have been advocated in a wide range of educational contexts in higher education. There is, however, rare information on the contributions of holistic education courses on college students. Using grounded theory methods, this preliminary study was to explore participants’ perceptions of a holistic care course through cooperative learning. The results indicated that five primary categories including learning environment construction, multiple learning processes, cognitive change, solitary learning and transfer, and personal growth emerged as prominent and consistent themes. Moreover, positive and negative feelings about the learning experience, a greater understanding of holistic knowledge, and an enlargement of the experiences of connecting to others were also found. Finally, a pattern of university students’ construction of holistic knowledge was developed, and several research questions were generated. Future implications for research and practice on the holistic curriculum and cooperative learning in higher education were also suggested.  相似文献   

China’s popular nationalism on the internet. Report on the 2005 anti‐Japan network struggles 1     

Shih‐Diing LIU 《Inter-Asia Cultural Studies》2013,14(1):144-155

Abstract

In April 2005, waves of anti‐Japan protest swept China and South Korea. In China, hundreds of thousands of people took to the streets in more than 40 cities to protest against Japan over its irresponsible attitude toward the history of colonial rule and war crimes of 60 years ago. Despite the protest having a strong ground and its action being generally non‐violent and peaceful, it was then severely condemned by many Western critics and media as chauvinistic and irrational, and as being manipulated by the Chinese government to legitimize its rule. Against such a notion, this essay attempts to work with China’s ‘popular nationalism’ (renmin minzu zhuyi), and considers its space as an autonomous political domain that is independent of the state nationalism. The ‘cyber‐nationalism’ (wanglu minzu zhuyi), this paper argues, not only challenges the state monopoly over domestic nationalist discursive production, but also opens up new possibilities for performing common people’s ‘public discursive right’ (gonggong huayu quanli). Far from being a homogeneous unity, the online campaign is characterized by free exchange of information and lively debate over the boycott strategy.  相似文献   

An enzyme-linked immunosorbent assay on a centrifugal platform using magnetic beads     

Chih-Hsin Shih  Ho-Chin Wu  Chong-Yi Chang  Wen-Hong Huang  Yi-Feng Yang 《Biomicrofluidics》2014,8(5)

An automated, disk-based, enzyme-linked immunosorbent assay (ELISA) system is presented in this work. Magnetic beads were used as the antibody carriers to improve the assay sensitivity and shorten the reaction time. The magnetic module integrated on the system is capable of controlling the magnetic beads to either move in the incubation stage or immobilize at a specific location during washing stage. This controlling mechanism utilizes a passive controlling approach so that it can be performed through disk spinning without the need of active control from external devices. The movement of the magnetic beads was investigated and the optimal rotational speed was found to be related to the ratio of the processing time to the cycle time of the magnetic beads. Comparing to ELISA conducted on microtiter plates, similar test results could be achieved by the disk-based ELISA but the entire protocol can be finished automatically within 45 min with much less reagent consumption.  相似文献   

A sample-to-result system for blood coagulation tests on a microfluidic disk analyzer     

Chia-Hui Lin  Cheng-Yuan Liu  Chih-Hsin Shih  Chien-Hsing Lu 《Biomicrofluidics》2014,8(5)

In this report, we describe in detail a microfluidic analyzer, which is able to conduct blood coagulation tests using whole blood samples. Sample preparation steps, such as whole blood aliquoting and metering, plasma separation, decanting, and mixing with reagents were performed in sequence through microfluidic functions integrated on a disk. Both prothrombin time (PT) and activated partial thromboplastin time (aPTT) were carried out on the same platform and the test results can be reported in 5 min. Fifty clinical samples were tested for both PT and aPTT utilizing the microfluidic disk analyzer and the instrument used in hospitals. The test results showed good correlation and agreement between the two instruments.  相似文献   

中国菊科两个新记录属——虎头蓟属与半毛菊属     

石铸 《中国科学院研究生院学报》1986,24(2):156-156

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