Development of Knowledge for Teaching Mathematical Definitions in a Co-learning Inquiry Community of Teachers and Researchers

Song,Chang-Geun,Lee Kyeong-Hwa 서울대학교 교육종합연구원 2020 The SNU Journal of Education Research Vol.29 No.2

This study deals with teacher learning with researchers-as-partners. We investigated the development of teachers’ knowledge for teaching mathematical definitions in a co-learning inquiry community of teachers and researchers. These teachers wrote reflective journals about problems identified in their teaching practices, raised mathematical or didactic issues, and gathered to discuss the issues with other teachers and researchers in the community. Under a qualitative case study approach, we analyzed reflective journals of teachers and transcription of group discussions in terms of reflection types, developed knowledge, and characteristics of inquiry. Findings show that communal inquiry of teachers and researchers, mediating self- and joint-reflection, promoted development of knowledge for teaching mathematical definitions. We term the norms that represent inquiry stance of the members in this co-learning community as communal responsibilities of questioning and communal responsibilities of answering.-

기업혁신의 영향요인과 혁신성과에 관한 연구

송신근(Song Sin-geun) 한국국제회계학회 2021 국제회계연구 Vol.- No.98

[연구목적] 본 연구는 세 가지 유형의 혁신인 기술, 제품 및 비즈니스모델 혁신 각각에 어떠한 요인들이 영향을 미치며, 이들 세 가지 유형의 기업혁신이 혁신성과에 어떠한 영향을 미치는지를 분석하는데 연구목적을 두고 있다. [연구방법] 기업혁신의 영향요인으로는 시장지향성, 기업가지향성, 학습능력 및 기술시너지를 사용하였으며, 기업혁신의 유형으로는 기술혁신, 제품혁신 및 비즈니스모델 혁신을 사용하였고, 기업혁신에 따른 성과로 혁신성과를 사용하였다. 가설검증은 제조기업으로부터 회수된 247부의 설문지를 사용하여 SPSS AMOS 25를 활용한 구조방정식모형을 통해 분석하였다. [연구결과] 분석결과, 기업혁신 영향요인 분석에서 기술 및 제품혁신에는 학습능력과 기업가지 향성이 유의적인 정(+)이 영향을 보였으며, 비즈니스모델 혁신에는 시장지향성, 학습능력, 기업가지향성 및 기술시너지 등 영향요인 모두가 유의적인 정(+)의 영향을 보였다. 기업혁신 성과인 혁신성과에는 비즈니스모델 혁신만 유의적인 영향을 보였다. [연구의 시사점] 이러한 결과는 기업이 추진하는 기업혁신 유형에 따라 영향을 미치는 요인이 상이하므로 기업혁신 유형별 상이한 추진전략이 수립되어야 함을 보여주고 있다. 또한 기대 혁신성과를 거두기 위해서는 최근 혁신유형으로 부각되고 있는 비즈니스모델 혁신에 중점을 둔 혁신전략이 필요함을 보여주고 있다. [Purpose] The purpose of this study is to analyze what factors affect each of the three types of innovation, such as technology, product and business model innovation, and how these three types of corporate innovation affect innovation performance. [Methodology] Market orientation, entrepreneurial orientation, learning ability, and technology synergy were used as the influence factors of corporate innovation, and technological innovation, product innovation, and business model innovation were used as the types of corporate innovation. Hypothesis verification is conducted through the structural equation model of SPSS AMOS 25 using 247 questionnaires collected from manufacturing companies. [Findings] Findings showed that learning ability and corporate orientation had a significant positive (+) effect on technology and product innovation, and all factors such as market orientation, learning ability, corporate orientation, and technology synergy had a significant positive (+) effect on business model innovation. And also business model innovation showed a significant positive (+) effect on innovation performance, but technology and product innovation showed non-significant results. [Implications] These results show that different promotion strategies for each type of corporate innovation must be established because the factors that have an influence on the types of corporate innovation promoted by companies are different. It also shows that in order to achieve the expected innovation performance, an innovation strategy that focuses on business model innovation, which has recently emerged as an innovation type, is needed.

기업혁신과 경영성과 간에 혁신경영 역량과 혁신사업화 역량의 조절효과

송신근(Song, Sin-Geun) 한국경영교육학회 2020 경영교육연구 Vol.35 No.5

[연구목적] 본 연구는 기업혁신과 경영성과 간의 관계를 분석하고, 이들 간에 혁신경영 역량과 혁신사업화 역량의 조절효과를 분석하는데 연구목적을 두고 있다. [연구방법] 연구를 위한 자료는 제조업체로부터 수집된 총 247개의 설문지를 활용하였으며, 변수의 측정을 위한 타당성과 신뢰성을 검증하였고, 다중회귀분석에 의한 가설검증을 실시하였다. [연구결과] 기업혁신 관련 모든 변수들은 경영성과에 영향을 미치는 것으로 나타났다. 조절효과 분석에서는 기술혁신 및 제품혁신과 경영성과 간에 기술리더십, 혁신제품생산 및 혁신마케팅이 유의적인 정(+)의 조절효과를 보였다. [연구의 시사점] 경영성과를 제고하기 위해서는 기업혁신을 추진하여야 하며, 이와 더불어 기업혁신, 특히 기술혁신과 제품혁신의 경우 이를 지원하는 혁신경영 역량과 혁신사업화 역량을 갖춤으로써 경영성과를 더욱 향상시킬 수 있게 된다. [Purpose] The purpose of this study is to analyze the relationship between corporate innovation and management performance, and whether association between them is moderated by innovation management capability and innovation commercialization capability. [Methodology] A total of 247 questionnaires collected from manufacturers were used as data for the study, the validity and reliability were verified for the measurement of variables, and hypothesis verification was performed by multiple regression analysis. [Findings] All variables related to corporate innovation were found to have a significant positive (+) effect on management performance. In the moderation effect analysis, it was found that technology leadership, innovative product production, and innovation marketing had a significant positive (+) moderating effect between technology innovation and product innovation and management performance. [Implications] In order to improve management performance, corporate innovation must be promoted, and in addition, especially in the case of technological innovation and product innovation, it has been shown that management performance can be further improved by having the innovation management capability and the innovation commercialization capability to support them.

뇌에 양극성 전기응고강도의 효과와 시간경과에 대한 실험적 연구

송근성,이영우 부산의대 1988 부산의대잡지 - 부산대학교 의과대학 Vol.28 No.2

權限을 넘은 表見代理에 관한 小考

宋根洙,鄭權燮 東義大學校 法政硏究所 1998 공공정책연구 Vol.14 No.-

日本의 抵當證券制度에 관한 小考

宋根洙 東義大學校 法政大學 1995 공공정책연구 Vol.11 No.-

개선된 다출력 동적 CMOS 설계 방식을 이용한 고성능 32 비트 CLA가산기 설계 및 구현

송근호,방만식,서정훈,한석붕,이효상,김강철 慶尙大學校生産技術硏究所 1997 生産技術硏究所論文集 Vol.13 No.-

In this paper, we designed, implemented and evaluated 32-bit CLA adder with the ENMODL(enhanced NORA Multiple Output Domino Logic) logic style which is new dynamic CMOS logic. The circuit is implemented using 0.8㎛ CMOS double-metal process technology. It operates stably and the addition time is less 3.9 ns. The ENMODL logic style can improve the performance in the high-speed computing circuits depending on the degree of recurrence.

복어중독에 의한 가사 상태에서 소생한 1예

송승찬,신진호,강석우,박경남,최호순,박근태,문희식,기춘석,이성희,윤병철,노우균,조균석,이민호 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.3

Tetrodotoxin is a neurotoxin produced by about 90 species of puffer fish and causes paralysis of central nervous system and peripheral nerves by blocking the movement of all monovalent cation. Ingestion of tetrodotoxin produces clinical manifestations such as paresthesias(within 10-45 min), vomiting, lightheadedness, salivation, muscle twitching, dysphagia, difficulty in speaking, convulsion and death that expressed by cardiopulmonary arrest with loss of brain stem reflex sometimes. Tetrodotoxin prevents or delays ischemia induced neuronal death by way of following 3 mechanisms. Firstly, it reduces the energy demand of the brain tissues. Secondly, it delays or even prevents anoxic depolarization. Finally, it deminishes ischemia induced cell swelling and cerebral edema. We report a case of puffer fish poisoning which presented with cardiopulmonary arrest and loss of brain stem reflex, but completely recovered by aggressive cardiopulmonary resuscitation.

民間信仰에 의한 祈子 呪術圖 考察

金松根 全南大學校 藝術硏究所 2001 藝術論集 Vol.4 No.-

Kinds of Jusul-do praying for sons are found in Yeocheon Area in Southern District, where people had great desire for flourishing posterity and phallicism prevailed in agricultural and fishery culture. Religious idea of praying for sons among commoners is deeply related to beliefs wishing for blessing spontaneously developed along with Animism, Totemism, and Shamanism originated from primitive religion and then transferred into folk religion. Magic symbols of seeking fortune, health, longevity, wealth, good luck, exorcising evil spirits, desiring sons, and flying dragons from legends, folklore, fortune-telling, cult of nature, praying for sons, and living in community (of farming villages, fishing shores, and mountain villages) are abundantly and majestically depicted in the 8-panel folding screen consisting of eight Korean folk painting; Yonhwajeong-do ((龍華亭圖), Sangbongjeong-do(翔鳳亭圖),Gyeongyangdae-do(景釀臺圖), Bangujeong-do(伴鷗亭圖), Hapgangjeong-do(合江亭圖), Changamru-do(滄巖樓圖), Ssangbongjeong-do(雙鳳亭圖), and Hansansa-do(寒山寺圖). It is supposed that Gija-jusul-do must have been hung up in bedrooms for the newly married couples, or rooms for womenfolks for decoration. This must have been considered significant as a son to be born there was counted to be essential for succession and prosperity of a family and blood. Having many sons meant to be filial and loyal insuring labor power for agricultural community, producing force for national defense, and offering brain in court to assist the ruler in the future. It is supposed that Gija-jusul-do must have been hung up in bedrooms for the newly married couples, or rooms for womenfolks for decoration. This must have been considered significant as a son to be born there was counted to be essential for succession and prosperity of a family and blood. Having many sons meant to be filial and loyal insuring labor power for agricultural community, producing force for national defense, and offering brain in court to assist the ruler in the future. Something to do to practice filial piety for a descendant of the family was supposed to bear and bring up sons to advance to court to assist the ruler, and to be esteemed by others. With sincere heart expecting a child and desiring a son, someone would get spiritual comfort and develop patience somewhere in the area praying ardently before a folding screen of this Gija-jusul-do.

다중 중합효소 연쇄반응을 이용한 소의 Johne병 진단 기법 확립

김종배,송혜원,김근희,김홍,신광순,김두 대한의생명과학회 2000 Journal of biomedical laboratory sciences Vol.6 No.1

반추수에서 발생하는 Johne병의 조기 진단 방법을 제시하고 이 질병의 원인체와 미생물학적 특징이 유사한 M. bovis, M. avium 등의 mycobacteria감염증을 감별 진단하는 방법을 개발하기 위하여 Mycobacterium 균속의 표준균주를 사용하여 중합효소 연쇄반응을 확립하였다. Johne병으로 의심되는 소의 혈액과 유즙을 채취하여 분리한 단핵구 및 거식세포로부터 genomic DNA를 추출하였다. 각 시료로부터 추출한 DNA를 template로 이용하여 Mycobacterium spp.에 특이적인 16S rDNA primer set를 이용한 PCR을 수행하여 시료내의 mycobacterial DNA 보유 여부를 확인하였다. 한편 mycobacteria 양성으로 확인된 시료는 M. avium complex 균종에 특이한 16S rDNA 염기서열을 기초로하여 제작한 primer set와 M. paratuberculosis 의 IS900 sequence에 특이한 primer set를 이용하여 duplex PCR을 수행하여 Johne병 원인체의 보균 여부를 조사하였으며, 이 결과를 oligonucleotide probe를 사용한 Southern blot hybridization을 통하여 다시 확인하였다. 이와 같은 duplex PCR 기법을 실제 축산 현장에서 수집한 유즙과 말초혈액으로부터 분리한 단핵구 및 거식세포 시료에 적용한 결과 본 연구에서 확립한 duplex PCR기법 유용성을 확인할 수 있었다. Diagnosis of Bovine Johne's Disease Using Multiplex Polymerase Chain Reactions In order to improve the early diagnosis of Johne's disease in ruminants, duplex polymerase chain reaction system for the detection of the etiologic agent of M. paratuberculosis and for the differentiation of other mycobacterial animal pathogens, such as M. bovis and M. avium, was applied. Genomic DNAs were purified from peripheral blood monocytes or milk macrophages and were used as templates in the duplex PCR. Detection of Mycobacterium spp. in the specimen was carried out by PCR using primer set specific to the mycobacterial 16S rDNA. And then, mycobacterial DNA-positive specimens were further differentiated with duplex PCR system which was composed of primer sets specific to 16S rDNA of M. avium complex and IS900 gene of M. paratuberculosis. The results were re-confirmed by Southern blot hybridization with oligonucleotide specific to the internal sequence of IS900 PCR amplicons. The applicability of this duplex PCR system was evaluated with DNAs extracted from clinical specimens of peripheral blood monocytes and milk macrophages. In summary, the duplex PCR amplification system described in this experiment is promising molecular technique for the early diagnosis of Johne's disease in ruminants.