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.

JOURNAL William Butler Harrison

W.B. Harrison 한국기독교역사연구소 2012 한국기독교와 역사 Vol.37 No.-

Effect of rapamycin on lifespan in <i>Drosophila</i>

Harrison, Benjamin,Tran, Tina Thi,Taylor, Dwight,Lee, Sang-Dae,Min, Kyung-Jin Blackwell Publishing Asia 2010 GERIATRICS & GERONTOLOGY INTERNATIONAL Vol.10 No.1

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>

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.

모더니즘

Harrison, Charles 전주대학교 예술문화연구소 2001 예술문화 Vol.4 No.-

모더니즘이라는 용어에 대해서만큼 함축, 비꼼, 포부의 비중 이 무겁게 실리는 용어는 별로 없다. 최근의 포스트모더니즘에 대한 관심도 이 하중을 전혀 가볍게 하지 못했다. 오히려 그 반대이다. 감수성의 변화 또는 한 시대의 변화를 명확히 밝히는 것 - 즉 포스트모던의 조건을 규정하는 것 - 이 소망스럽거나 필수적이라고 여겨지면 질수록, 우리가 벗어났다고 또는 다 둘러 봤다고 추정되는 것이 도대체 무엇인지 그 정체를 밝히는 것은 더욱더 시급한 일이 되었다. 모더니즘의 의미를 충분히 탐구해 들어가는 것은 비평 용어 하나를 그럴 듯하게 꾸며대는 것을 훨씬 넘어서는 일일 것이다. 그것은 현재의 역사적 상황이 지닌 인과관계와 그 역사적 상황에 부수하는, 서구의 자의식적인 형식들의 인과관계를 탐험하는 일이 될 것이다

The Application of New Technologies in Cancer Cytogenetics

Harrison,Christine J. 가톨릭중앙의료원 가톨릭암센터 1996 암심포지움 Vol.- No.2

Increased Competition and Completion of the Market in the European Union : Static and Steady State Effects

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.

Phytoplankton and Zooplankton Interactions in the Strait of Georgia, Canada

Harrison, Paul J. 영남대학교 해양과학연구소 2000 국제심포지움 일정 및 발표논문집 Vol.2000 No.1

Review on the Various Remediation Projects on Dumpsites in Developing Countries

( Harrison Odhiambo ),( Yasumasa Tojo ),( Toshihiko Matsuto ) 한국폐기물자원순환학회(구 한국폐기물학회) 2016 한국폐기물자원순환학회 춘계학술발표논문집 Vol.2016 No.-

Pollution from open dumpsite still remains an enormous challenge at both national and global scales with concomitant social, environmental, and economic implications. While open dumpsites continues to increase globally in the developing countries due to increased urbanization, strategies for reverting this trend are often contentious, since causal explanations and drivers of open dumpsite are varied and context specific. Nevertheless, a general agreement exists that a mix of different open dumpsite remediation strategies are needed across the developing countries that integrate the public, private, and the government. There is still disagreement, however, as to what are the “best practices” for open dumpsite remediation measures with some advocating strict government involvement and others arguing for alternative schemes such as communitybased, locally-implemented methods. The Paris agreement on climate change 2015 also focuses on the reduction of green house gas from municipal solid waste and most of the climate-vulnerable countries fall under the category of developing countries where there is still much use of open dumpsites. These dumpsites are abandoned or operated beyond their capacities leading to various environmental, social and health impacts. This study looks into several remediation measures proposed by different countries in countering the influences of various open dumpsites in their jurisdictions depending. The measures that can be applied in the developing countries (African context) are highlighted based on ease of implementation. The selection of case studies comprised a total of 30 dumpsites in 20 countries, most of them (15) located in Asia and 4 America, followed by 6 countries in Africa, and 4 countries in Europe. The main focus is the developing countries mostly in South Asia, South America and Africa. In the countries in the Middle East Asia, the main problem was groundwater contamination which could be solved by having temporary treatment ponds of leachate. The countries in Europe mainly experienced stability issues with the landfill sites that could be contained through construction of retaining walls. In African countries sampled, the influences varied from ground water contamination to soil contamination. The remedy offered was close monitoring of the groundwater and soil and closure of the affected areas from usage as dumpsites. The South America countries also had influences ranging from air pollution, soil pollution, groundwater contamination and disease outbreak. Some of the projects offered solutions on containment of gas (methane) and its usage as energy. The south Asia countries had a myriad of problems as well. The main problem was ground water and surface water contamination from the leachate. Some of the proposed remediation measures were to treat the resulting leachate before discharging into surface waters and close monitoring of the groundwater for contamination. The result of this study would be instrumental in the remediation proposal project for Dandora dumpsite in Nairobi Kenya.