http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Student Perceptions of Teacher-Generated Educational Videos Shown in a Korean EFL Classroom
Harrison,Michael Fraser(Harrison,Michael Fraser ) 영상영어교육학회 2023 영상영어교육 (STEM journal) Vol.24 No.1
The purpose of this study was to analyze the perceptions of Korean English as a Foreign Language (EFL) university students toward teacher-generated educational videos and the recommendations they have for improving their effectiveness. While playing short video clips is now common practice in many EFL classes, few teachers choose to generate their own educational videos and little research has been done on how to create effective educational videos for EFL learners. Nine Korean university students participated in this study with qualitative data being collected from a focus group and semi-structured interviews. The videos shown to the students were viewed on the YouTube website during class and were created by their teacher and the author of this paper. The results show that the students find the videos helpful and effective for improving their English, although it is recommended to limit the time spent in class watching videos as students would rather spend time practicing the language. Other opinions and recommendations are grounded in cognitive load theory. The implications of this study suggest that teachers should consider creating their own educational videos and suggestions are made of how to create effective presentations.
Occupational Health: Meeting the Challenges of the Next 20 Years
Harrison, John,Dawson, Leonie Occupational Safety and Health Research Institute 2016 Safety and health at work Vol.7 No.2
Background: The industrial revolution that took place in the United Kingdom (UK) between 1760 and 1830 led to profound social change. Occupational medicine was concerned with the diagnosis, treatment, and prevention of occupational diseases, that is, diseases directly caused by exposure to workplace hazards. A similar pattern of development has occurred globally. Methods: A review of relevant literature. Results: The international conceptualization and development of occupational health occurred during the 20th century. A new paradigm for occupational health has emerged that extends the classical focus on what might be termed "health risk management" that is, the focus on workplace hazards and risk to health to include the medical aspects of sickness absence and rehabilitation, the support and management of chronic noncommunicable diseases, and workplace health promotion. Conclusion: The future strategic direction for occupational health will be informed by a needs analysis and a consideration of where it should be positioned within future healthcare provision. What are the occupational health workforce implications of the vision for occupational health provision? New challenges and new ways of working will necessitate a review of the competence and capacity of the occupational health workforce, with implications for future workforce planning.
Harrison, Glenn W.,Rutherford, Thomas F.,Tarr, David G. 세종대학교 국제경제연구소 1996 Journal of Economic Integration Vol.11 No.3
We model the effects of completion of the internal market in the European Union on trade, production and market structure. The impetus for change comes from the removal of border costs, as well as increased competition from the greater ability of EU buyers to substitute among the products of different EU producers. In turn, this increased competition arises from the single market program on standards, government procurement, and dynamic learning effects. Removing the border costs results in relatively small welfare gains. Increased competition more than doubles the estimated benefits, and the steady state growth effect more than quadruples the welfare gains.
Harrison,Christine J. 가톨릭중앙의료원 가톨릭암센터 1996 암심포지움 Vol.- No.2
Diagnosis. Specific Cytogenetic Rearrangements. Cytogenetic analysis of haematological malignan-cies plays a major rolo in the diagnosis of the disease. It is well known that a large number of non-random chromosome abnormalities are associa-ted with specific types and sub-types of leukaemia. Often the cytogenetics result provides the definitive diagnosis.
Suspensions and polymers - Common links in rheology
Harrison, G.,Franks, G.V.,Tirtaatmadja, V.,Boger, D.V. The Korean Society of Rheology 1999 Korea-Australia rheology journal Vol.11 No.3
Rheological techniques are frequently used to characterize particulate suspensions and polymer systems. Experimental data frequently show that similar trends and characteristics are found in both systems. Using common examples and illustrations of the rheological behaviour, we attempt to bring together these separate fields and investigate the common links in the different systems. In many cases the similar rheological behaviour observed in these different systems can be related to the same basic physical principles.
Photodissociation Dynamics of the Thiophenoxy Radical at 248, 193, and 157 nm
Harrison, Aaron W.,Lim, Jeong Sik,Ryazanov, Mikhail,Wang, Gregory,Gao, Shumin,Neumark, Daniel M. American Chemical Society 2013 The journal of physical chemistry. A, Molecules, s Vol.117 No.46
<P>The photodissociation dynamics of the thiophenoxy radical (C<SUB>6</SUB>H<SUB>5</SUB>S) have been investigated using fast beam coincidence translational spectroscopy. Thiophenoxy radicals were produced by photodetachment of the thiophenoxide anion followed by photodissociation at 248 nm (5.0 eV), 193 nm (6.4 eV), and 157 nm (7.9 eV). Experimental results indicate two major competing dissociation channels leading to SH + C<SUB>6</SUB>H<SUB>4</SUB> (o-benzyne) and CS + C<SUB>5</SUB>H<SUB>5</SUB> (cyclopentadienyl) with a minor contribution of S + C<SUB>6</SUB>H<SUB>5</SUB> (phenyl). Photofragment mass distributions and translational energy distributions were measured at each dissociation wavelength. Transition states and minima for each reaction pathway were calculated using density functional theory to facilitate experimental interpretation. The proposed dissociation mechanism involves internal conversion from the initially prepared electronic excited state to the ground electronic state followed by statistical dissociation. Calculations show that SH loss involves a single isomerization step followed by simple bond fission. For both SH and S loss, C–S bond cleavage proceeds without an exit barrier. By contrast, the CS loss pathway entails multiple transition states and minima as it undergoes five membered ring formation and presents a small barrier with respect to products. The calculated reaction pathway is consistent with the experimental translational energy distributions in which the CS loss channel has a broader distribution peaking farther away from zero than the corresponding distributions for SH loss.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jpcafh/2013/jpcafh.2013.117.issue-46/jp403229h/production/images/medium/jp-2013-03229h_0008.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/jp403229h'>ACS Electronic Supporting Info</A></P>