Now I’m Ready: The Impact of a Professional Development Initiative on Faculty Concerns with Program Assessment     

Don?HavilandEmail author  Seon-Hi?Shin  Steve?Turley 《Innovative Higher Education》2010,35(4):261-275

This article examines the impact of a faculty professional development effort on the understanding, confidence, and attitudes of education faculty related to program assessment activities. We applied literature on the adoption of innovations, institutional effectiveness, and professional development to a case study of a series of workshops on assessment. The results suggest that faculty members had improved skills and knowledge, understanding, confidence, and attitudes regarding assessment following the workshops. The opportunity for faculty members to collaborate with colleagues on assessment and to develop an understanding of the kinds of supports in place for assessment work were important elements in the gains.  相似文献   

DISTRIBUTIVE PARTITIONING OPERATION IN MATHEMATICAL SITUATIONS INVOLVING FRACTIONAL QUANTITIES     

Lee  Soo Jin  Shin  Jaehong 《International Journal of Science and Mathematics Education》2013,13(2):329-355

In the present study, we describe a participating student’s (Carol’s) distributive partitioning scheme and operations along with Steffe’s and his colleagues’ studies about children’s constructions of fraction knowledge as a particular model of mathematical learning. Analysis of Carol’s mathematical behaviors indicates that an operationally common mathematical behavior (distributive partitioning operation) was revealed in various mathematical problem situations such as fraction multiplication, fraction division, and multiplicative transformation between fractional quantities. It both provides a rationale for why becoming versed in one mathematical subject could facilitate working with another mathematical subject and also implies the necessity of describing and defining students’ mathematical behaviors from an operational view of knowledge, which might lead to building foundations of a substantial cognitive map for students’ mathematical development.

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The discourse of crisis and the crisis of discourse     

Kwang-Yeong Shin 《Inter-Asia Cultural Studies》2013,14(3):427-442

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Genetically encoded X-ray cellular imaging for nanoscale protein localization     

Huating Kong  Jichao Zhang  Jiang Li  Jian Wang  Hyun-Joon Shin  Renzhong Tai  Qinglong Yan  Kai Xia  Jun Hu  Lihua Wang  Ying Zhu  Chunhai Fan 《国家科学评论(英文版)》2020,7(7):1218

Spatial resolution defines the physical limit of microscopes for probing biomolecular localization and interactions in cells. Whereas synchrotron-based X-ray microscopy (XRM) represents a unique approach for imaging a whole cell with nanoscale resolution due to its intrinsic nanoscale resolution and great penetration ability, existing approaches to label biomolecules rely on the use of exogenous tags that are multi-step and error-prone. Here, we repurpose engineered peroxidases as genetically encoded X-ray-sensitive tags (GXET) for site-specific labeling of protein-of-interest in mammalian cells. We find that 3,3^′-diaminobenzidine (DAB) polymers that are in-situ catalytically formed by fusion-expressed peroxidases are visible under XRM. Using this new tag, we imaged the protein location associated with the alteration of a DNA-methylation pathway with an ultra-high resolution of 30 nanometers. Importantly, the excellent energy resolution of XRM enables multicolor imaging using different peroxidase tags. The development of GXET enlightens the way to nanoscopic imaging for biological studies.  相似文献   

The influence of unsupervised time on elementary school children at high risk for inattention and problem behaviors     

Kyoung-Sae Na  Soyoung Irene Lee  Hyun Ju Hong  Myoung-Ja Oh  Geon Ho Bahn  Kyunghee Ha  Yun Mi Shin  Jungeun Song  Eun Jin Park  Heejung Yoo  Hyunsoo Kim  Yun-Mi Kyung 《Child abuse & neglect》2014

In the last few decades, changing socioeconomic and family structures have increasingly left children alone without adult supervision. Carefully prepared and limited periods of unsupervised time are not harmful for children. However, long unsupervised periods have harmful effects, particularly for those children at high risk for inattention and problem behaviors. In this study, we examined the influence of unsupervised time on behavior problems by studying a sample of elementary school children at high risk for inattention and problem behaviors. The study analyzed data from the Children's Mental Health Promotion Project, which was conducted in collaboration with education, government, and mental health professionals. The child behavior checklist (CBCL) was administered to assess problem behaviors among first- and fourth-grade children. Multivariate logistic regression analysis was used to evaluate the influence of unsupervised time on children's behavior. A total of 3,270 elementary school children (1,340 first-graders and 1,930 fourth-graders) were available for this study; 1,876 of the 3,270 children (57.4%) reportedly spent a significant amount of time unsupervised during the day. Unsupervised time that exceeded more than 2 h per day increased the risk of delinquency, aggressive behaviors, and somatic complaints, as well as externalizing and internalizing problems. Carefully planned afterschool programming and care should be provided to children at high risk for inattention and problem behaviors. Also, a more comprehensive approach is needed to identify the possible mechanisms by which unsupervised time aggravates behavior problems in children predisposed for these behaviors.  相似文献   

Data quality management,data usage experience and acquisition intention of big data analytics     

Ohbyung Kwon  Namyeon Lee  Bongsik Shin 《International Journal of Information Management》2014

Big data analytics associated with database searching, mining, and analysis can be seen as an innovative IT capability that can improve firm performance. Even though some leading companies are actively adopting big data analytics to strengthen market competition and to open up new business opportunities, many firms are still in the early stage of the adoption curve due to lack of understanding of and experience with big data. Hence, it is interesting and timely to understand issues relevant to big data adoption. In this study, a research model is proposed to explain the acquisition intention of big data analytics mainly from the theoretical perspectives of data quality management and data usage experience. Our empirical investigation reveals that a firm's intention for big data analytics can be positively affected by its competence in maintaining the quality of corporate data. Moreover, a firm's favorable experience (i.e., benefit perceptions) in utilizing external source data could encourage future acquisition of big data analytics. Surprisingly, a firm's favorable experience (i.e., benefit perceptions) in utilizing internal source data could hamper its adoption intention for big data analytics.  相似文献   

Beyond Interaction: The relational construct of 'Transactional Presence'   总被引：1，自引：0，他引：1  

Namin Shin 《Open Learning》2013,28(2):121-137

This paper presents the novel construct of 'Transactional Presence' in consideration of a distance student's perceptions of psychological presence on the part of teachers, peers, and institutions. Relevant distance education literature is analyzed through the lens of interpersonal relationships, and concepts such as telepresence and social presence are drawn from media and communication studies. When the two streams of literature reviewed are merged, it is conjectured that the perception of presence concerned must be influenced by distance students' idiosyncratic needs for connection with learning resources and sources of support. This notion of presence, designated 'Transactional Presence', is defined as the degree to which a distance student perceives the availability of, and connectedness with, other parties involved in a given distance education setting. The construct's potential significance is explored in view of enriching distance education theory and research.  相似文献   

Density-dependent separation of encapsulated cells in a microfluidic channel by using a standing surface acoustic wave     

Nam J  Lim H  Kim C  Yoon Kang J  Shin S 《Biomicrofluidics》2012,6(2):24120-2412010

This study presents a method for density-based separation of monodisperse encapsulated cells using a standing surface acoustic wave (SSAW) in a microchannel. Even though monodisperse polymer beads can be generated by the state-of-the-art technology in microfluidics, the quantity of encapsulated cells cannot be controlled precisely. In the present study, mono-disperse alginate beads in a laminar flow can be separated based on their density using acoustophoresis. A mixture of beads of equal sizes but dissimilar densities was hydrodynamically focused at the entrance and then actively driven toward the sidewalls by a SSAW. The lateral displacement of a bead is proportional to the density of the bead, i.e., the number of encapsulated cells in an alginate bead. Under optimized conditions, the recovery rate of a target bead group (large-cell-quantity alginate beads) reached up to 97% at a rate of 2300 beads per minute. A cell viability test also confirmed that the encapsulated cells were hardly damaged by the acoustic force. Moreover, cell-encapsulating beads that were cultured for 1 day were separated in a similar manner. In conclusion, this study demonstrated that a SSAW can successfully separate monodisperse particles by their density. With the present technique for separating cell-encapsulating beads, the current cell engineering technology can be significantly advanced.  相似文献   

Do Teachers’ Instructional Practices Moderate Equity in Mathematical and Scientific Literacy?: an Investigation of the PISA 2012 and 2015     

Jihyun Hwang  Kyong Mi Choi  Yejun Bae  Dong Hoon Shin 《International Journal of Science and Mathematics Education》2018,16(1):25-45

Many efforts have been made to reach educational equity, especially to reduce mathematics and science achievement gaps by students’ socioeconomic status. Across countries, educators strive to reform traditional teacher-centered instructional approaches to more student-centered/inquiry-based instruction to improve equity in education. In this context, this study examines whether relationships between socioeconomic status and scientific or mathematical literacy are moderated by student-centered instruction. Ten countries covering a wide range of achievement levels as well as equity in education are selected for an international comparison. A linear regression analysis is applied to student achievement, equity, and frequency of student-centered instruction data from the PISA 2012 and PISA 2015. We find mixed results: As student-centered instruction is offered more frequently, the gap in mathematical and scientific literacy between low and high socioeconomic status is generally narrowed or maintained. In most countries, students’ mathematical and scientific literacy scores are expected to decrease across all socioeconomic status as student-centered instruction is given more frequently. The findings necessitate further scrutiny of how teachers implement student-centered instruction in various educational systems. This further research need to consider the complexity of implementation related to sociological and pedagogical aspects.  相似文献   

Challenges and strategies of building and sustaining inter-organizational partnerships in sport for development and peace     

Jon Welty Peachey  Adam Cohen  Nari Shin  Bruno Fusaro 《Sport Management Review》2018,21(2):160-175

While sport management scholars have explored inter-organizational partnerships and their associated challenges, they have devoted less attention to inter-organizational partnership development and sustainability in sport for development and peace (SDP), particularly across a wide range of organizations with varied missions and foci. Hence, the purpose of this qualitative study was to examine challenges faced by SDP organizations when forming and sustaining inter-organizational partnerships across contexts and partnership types, and to uncover strategies they have employed to overcome these challenges. Common challenges encountered across 29 SDP organizations included competition for resources, skepticism of sport as a development tool, unequal power relations, misaligned goals and mission drift, and implementation issues. Strategies included focusing on building relationships and networks, demonstrating benefits to partner, starting small then diversifying, keeping focused on mission and goals, involving partner, and treating the partnership as a business relationship. Theoretical extensions and practical implications are discussed, along with directions for future research.  相似文献