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E-learning Contents for Foreign Language Communication Skill in Vocational Education and Training
Kyungsuk Chang,Wooyoung Park 한국응용언어학회 2018 응용 언어학 Vol.34 No.3
The digital and ICT revolutions have had a significant influence on foreign language learning and teaching (FLLT). One of the remarkable innovations they have brought to FLLT is the virtual learning environment, where online resources are used to facilitate asynchronous and synchronous learning to promote student-centered learning in numerous ways. In this study we explore how ICT is integrated into the development of individually customized English language e-learning programs - particularly about preparing learners for the job market. A conceptual framework is provided to orient to the whole process of e-learning contents development. We elaborate how a learning content management system (LCMS) is made use of to create tailored e-learning contents for learners with different levels of need. Focus is given to the environment where subject matter experts, instructional designers, and developers work collaboratively to achieve the goal in hand. It also shows how the resulting e-learning contents are delivered to students via a learning management system (LMS), which is designed and built to manage and track individual users’ progress and performance. We made some suggestions for the effective implementation of e-learning contents in these contexts, drawing managerial and pedagogical implications for the application of elearning contents to other contexts.
KyungSuk Seo,Kwang-SooLyoo,Yong-hoPark,Jong-HoKoh,Bong-KyunPark 대한수의학회 2002 Journal of Veterinary Science Vol.3 No.4
To determine the immune responses in pigs to hogcholera virus after treatment with an ionized alkalimineral complex (IAMC), 40 healthy pigs (28-32 daysold) from a commercial swine farm were purchasedand housed into 4 groups (n=10 each). All pigs werevaccinated intramuscularly (1 ml) with an attenuatedlive hog cholera virus (HCV, LOM strain) at 28-32days old and challenged with a virulent hog choleravirus at 8 weeks after vaccination. Each group wastreated with PowerFeelTMsprayed diet as 0.05% (w/w)in a final concentration (T-1,n=10),a diet mixed withSuperFeedTMas 3% (w/w) in a final concentration (T-2,n=10),or a diluted PowerFeelTMsolution (1:500,v/v) asdrinking water (T-3, n=10), respectively. A group(n=10) served as a non-treated control.Proportions ofexpressing CD2+ and CD8+ cells increased significantly(p<0.05) at 8-week post-application. Mean antibodytiters of each group against HCV gradually increasedto higher levels after vaccination and with challengeof the virulent virus.In conclusion,the IAMC-treateddiets can be helpful for the improvement of growth inpigs with proper vaccination program, while theIAMC-treated diets have no effects on the clinicalprotection against hog cholera.
Squamous cell carcinoma of head and neck: what internists should know
Kyungsuk Jung,Manpreet Narwal,Seon Young Min,김범석,Hyunseok Kang 대한내과학회 2020 The Korean Journal of Internal Medicine Vol.35 No.5
Squamous cell carcinoma of head and neck (SCCHN) is a group of cancer arising from mucosal surfaces of the head and neck. Optimal management of SCCHN requires a multidisciplinary team of surgical oncologists, radiation oncologists, medical oncologists, nutritionist, and speech-language pathologists, due to the complexity of anatomical structure and importance of functional outcome. Human papilloma virus (HPV)-related SCCHN represents a distinct subset from HPV negative SCCHN which is associated with carcinogen exposure such as cigarette smoking, betel nut use and alcohol. HPV related SCCHN responds better to concurrent chemoradiation and has better overall prognosis, compared to HPV negative SCCHN. Radiation therapy has been introduced to the treatment of SCCHN, administered concurrently with systemic chemotherapy for locoregional SCCHN, as well as a palliative measure for recurrent and/or metastatic (R/M) SCCHN. Recently, immune checkpoint inhibitors have been shown to improve overall survival in R/M-SCCHN and have been incorporated into the standard of care. Combination approaches with immune therapy and targeted therapy for biomarker enriched population based on genomics are being actively investigated and will shape the future of SCCHN treatment.
TOWARD NEXT GENERATION SOLAR CORONAGRAPH: DEVELOPMENT OF COMPACT DIAGNOSTIC CORONAGRAPH ON ISS
Kyungsuk Cho,Suchan Bong,Seonghwan Choi,Heesu Yang,Jihun Kim,Jihye Baek,Jongyeob Park,Eun-Kyung Lim,Rok-Soon Kim,Sujin Kim,Yeon-Han, Kim,Young-Deuk Park,S.W. Clarke,J.M. Davila,N. Gopalswamy,V. M. Nak 한국천문학회 2017 天文學會報 Vol.42 No.2
Practical Silicon-Surface-Protection Method using Metal Layer
Kyungsuk Yi,Minsu Park,Seungjoo Kim 대한전자공학회 2016 Journal of semiconductor technology and science Vol.16 No.4
The reversal of a silicon chip to find out its security structure is common and possible at the present time. Thanks to reversing, it is possible to use a probing attack to obtain useful information such as personal information or a cryptographic key. For this reason, security-related blocks such as DES (Data Encryption Standard), AES (Advanced Encryption Standard), and RSA (Rivest Shamir Adleman) engines should be located in the lower layer of the chip to guard against a probing attack; in this regard, the addition of a silicon-surface-protection layer onto the chip surface is a crucial protective measure. But, for manufacturers, the implementation of an additional silicon layer is burdensome, because the addition of just one layer to a chip significantly increases the overall production cost; furthermore, the chip size is increased due to the bulk of the secure logic part and routing area of the silicon protection layer. To resolve this issue, this paper proposes a practical silicon-surface-protection method using a metal layer that increases the security level of the chip while minimizing its size and cost. The proposed method uses a shift register for the alternation and variation of the metal-layer data, and the inter-connection area is removed to minimize the size and cost of the chip in a more extensive manner than related methods.
Kyungsuk Jung,Jong Chul Park,Hyunseok Kang,Christoph Brandes 한국역학회 2018 Epidemiology and Health Vol.40 No.-
OBJECTIVES: We investigated whether androgen deprivation therapy (ADT) in prostate cancer patients was associated with a decreased risk for second primary lung cancer in US veterans. METHODS: Prostate cancer diagnoses in the US Veterans Affairs Cancer Registry between 1999 and 2008 were identified. Use of hormonal therapy and diagnoses of second primary lung cancer were determined from the registry. Synchronous prostate and lung cancers, defined as 2 diagnoses made within 1 year, were excluded from the analysis. Cancer-free survival was estimated using the Kaplan-Meier method and hazard ratios were estimated using Cox proportional hazard models. RESULTS: Among the 63,141 identified patients with prostate cancer, 18,707 subjects were eligible for the study. Hormonal therapy was used in 38% of patients and the median follow-up period was 28 months. ADT use was associated with longer lung cancer-free survival in prostate cancer patients (log-rank p=0.01). After adjusting for age, race, smoking and prostate cancer stage, ADT use was associated with decreased lung cancer risk by 15, 21, and 24% after 1, 2, and 3 years, respectively. CONCLUSIONS: ADT in prostate cancer patients may be associated with decreased second primary lung cancer risk among US veterans.
A Case Study of English Teacher Development through Online Supervision
Kyungsuk Chang,Kyutae Jung 한국영어어문교육학회 2011 영어어문교육 Vol.17 No.4
Little has been known about the process of the language teacher professional development. The present study aims to investigate an assumption that anybody who has subject matter knowledge will be a good language teacher. A teacher with rich linguistic knowledge started to question the effectiveness of his online class. The teacher, in collaboration with a teacher trainer, became involved in the critical examination of his online class, seeking for more effective ways of teaching. The trainer provided the teacher with clinical supervision, which is characterized as developmental, collaborative, non-judgemental, interactive, and teacher-centered. The data collected at the multi-facets of the online teaching shows how the process of the teacher’s decision-making became principled on the basis of recent developments in English language teaching, and how the teacher has gained pedagogical knowledge through reflection upon his teaching. The feedback from the students reveals that such teacher professional development is beneficial to student learning. These findings suggest that language teacher’s professional development can take place when they are engaged in reflective teaching and classroom investigation. It is also suggested that the process of teacher development can be enhanced through collaborative supervision with trust, openness and congeniality between parties involved.