Preparation of glucosamine by hydrolysis of chitosan with commercial α-amylase and glucoamylase     

Pan SK  Wu SJ  Kim JM 《Journal of Zhejiang University. Science. B》2011,12(11):931-934

Objective  

In order to overcome the defects of chemical hydrolysis approach to prepare glucosamine, an enzymatic hydrolysis method was developed.  相似文献   

An Entrance for the Uninterested: Who Watches Soft News and How Does It Affect Their Political Participation?     

Kim Andersen 《Mass Communication and Society》2019,22(4):487-507

As soft news shows in television present politics in an entertaining format, they are likely to attract and grab the attention of people who do not have a high interest in politics. Consequently, soft news might mobilize these citizens to engage in politics. This study tests this potential by using a 2-wave panel survey among a national sample of voters (N = 2,680) collected in relation to the 2015 National Election in Denmark. The results show that people with lower political interest were indeed more likely to increase their use of soft news during the election campaign and that, as a consequence, these low-motivated people also increased their passive participation, such as seeking additional information about the election. Further, the results show that this type of passive participation is likely to function as a stepping-stone to active forms of participation, such as attending political events or contacting politicians.  相似文献   

Learning in Action: How Competent Professionals Learn     

Eulho Jung  Minkyoung Kim  Charles M. Reigeluth 《Performance Improvement Quarterly》2016,28(4):55-69

The studies pertaining to expertise development are diverse and broad (Bjork, 1994; Einstein & McDaniel, 2005; Schneider, Healy, & Bourne, 2002), yet empirical research that bridges expertise development into instructional design theories is still in its very formative stages (Ertmer et al., 2008; Fadde, 2009). This article is intended to identify the instructional principles that are effective in accelerating the performance of journeymen, considering the significant impact of the journeyman stage and the need for hastening performance in that stage. With the introduction to the major scholarly works and principles that have led to the elaboration of training methods, strategies, and materials, this review of literature proposes a learning model that has four components: (1) development plan, (2) action, (3) reflection‐on‐action, and (4) remedies.  相似文献   

Parental Cultural Socialization of Mexican‐American Adolescents’ Family Obligation Values and Behaviors          下载免费PDF全文

Kim M. Tsai  Eva H. Telzer  Nancy A. Gonzales  Andrew J. Fuligni 《Child development》2015,86(4):1241-1252

The current study examined how parents’ cultural socialization efforts contribute to adolescents’ family obligation values and behaviors and how these processes may depend upon the relational climate at home. Utilizing survey and daily diary methodologies, 428 Mexican‐American adolescents (50% males; M_age = 15 years) and their parents (83% mothers; M_age = 42 years) participated in the study. Adolescents reported on their family obligation values and engagement in family assistance tasks across 14 days. Parents reported on their cultural socialization practices. Results indicated that parental cultural socialization was associated with adolescents’ family obligation values and behaviors when parent–child relationships were low in conflict and high in support. Findings suggest that the transmission of cultural values and practices is best facilitated through positive parent–child relationships.  相似文献   

Higher education institutions and work-based learning in the UK: employer engagement within a tripartite relationship     

Tehmina N. Basit  Alan Eardley  Rosemary Borup  Hanifa Shah  Kim Slack  Amanda Hughes 《Higher Education》2015,70(6):1003-1015

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Validity of Social,Moral and Emotional Facets of Self-Description Questionnaire II     

Kim Chau Leung  Herbert W. Marsh  Alexander Seeshing Yeung  Adel S. Abduljabbar 《Journal of Experimental Education》2015,83(1):1-23

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Developing learning progression‐based teacher knowledge measures     

Hui Jin  HyoJeong Shin  Michele E Johnson  JinHo Kim  Charles W. Anderson 《科学教学研究杂志》2015,52(9):1269-1295

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Aging IQ Intervention with Older Korean Americans: A Comparison of Internet-Based and In-Class Education     

Yuri Jang  Hyunwoo Yoon  C. Nathan Marti  Miyong T. Kim 《Educational gerontology》2015,41(9):642-652

Using the translated contents of the National Institute on Aging (NIA)'s Aging IQ, an educational intervention was delivered to older Korean Americans. The educational program was delivered via two different modalities, Internet-based education (n = 12) and in-class education (n = 11), and the overall feasibility and efficacy were evaluated by the Reach, Efficacy, Adoption, Implementation, and Maintenance (RE-AIM) framework. A high level of completion and overall satisfaction with the program was observed in both groups. Both groups also exhibited a significant improvement in their knowledge about aging after the completion of the educational program. However, at the one-month follow-up, the Internet-based group showed a greater retention of the knowledge gained. The findings not only support the value of education on aging for older ethnic minorities but also suggest the use of the Internet as an integral modality of intervention delivery.  相似文献   

Effects of learner–instructor relationship-building strategies in online video instruction     

Yanghee Kim  Jeffrey Thayne 《Distance Education》2015,36(1):100-114

Although research has demonstrated that an increased rapport between instructors and learners can positively relate with increased learning gains, perhaps mediated by the positive attitudes toward the course and self-efficacy beliefs in the coursework, little has been done to test what instructional strategies might increase this rapport in online video-based instruction. This study compared online video-based instruction that made use of relationship-building strategies with online video-based instruction that did not use those strategies. The two instructions were identical in every other way. The results show that the attitudes of the college students were positively affected by the relationship building strategies in a statistically significant way (p = .025) and that learning gains were also positively affected at a very near-significant level (p = .052). The implications of the findings are discussed.  相似文献   

Effectiveness of a satellite educational television program for Ethiopian secondary education     

Sung-Wan Kim 《Distance Education》2015,36(3):419-436

This study examined the actual practice and effectiveness of a satellite educational TV program in Ethiopian secondary schools. Participants in the survey were 228 students and 63 teachers from secondary schools. The results of the data analysis indicate that Ethiopian students and teachers scored highly in the evaluation areas. Levels of students’ general satisfaction with the satellite educational TV program were not equal for the variables of location and gender. It was also found that for students, learning demand, learning content, and class management were factors affecting their satisfaction with the satellite educational TV programs. For teachers, learning content and class management were the factors. The statistical mean difference in the satisfaction with the satellite educational TV program was between students and teachers. These findings suggest that the satellite educational TV program has the possibility of improving the quality of education in Ethiopian secondary schools.  相似文献