초등학교 교사들의 수학 교수 효능감 실태 분석

김정하,강문봉 대한수학교육학회 2015 수학교육학연구 Vol.25 No.1

The purpose of this study is for investing and analysing elementary teachers’ efficacy on teaching mathematics. It was measured by Kang & Kim(2014)’s instrument; MTEI (Mathematics Teaching Efficacy Instrument). The survey was conducted on a sample of 183 participants. The findings of this study are that mathematics teaching efficacy of elementary school teachers in South Korea is 64 percent based on 100 percent. There was no significant difference between women teachers and men teachers. Teachers who have taught longer than 5 years and less than 10 years have the lowest mathematics teaching efficacy. Teachers who were major in Mathematics have higher mathematics teaching efficacy than non-major in Mathematics. In addition, chances of training about mathematics make their efficacy higher. 이 연구는 우리나라 초등 교사들의 수학 교수 효능감이 어느 정도인지를 강문봉과 김정하가 개발한 측정 도구를 이용하여 분석한 것이다. 초등학교 교사 183명을 대상으로 분석하였다. 분석 결과 초등학교 교사들의 수학 교수 효능감은 100점 만점으로 볼 때 64점 정도의 높은 수준이며, 남교사와 여교사 사이에는 유의한 차이가 없었다. 경력 면에서 볼 때는 성장기 교사의 효능감이 가장 낮았다. 수학교육 관련 전공자의 수학 교수 효능감이 비수학교육 관련 전공자들의 것보다 유의하게 높았으며, 수학 관련 연수 활동의 횟수가 많을수록 효능감이 높다.

Owner Characteristics and Price Dynamics in the Metaverse Resale Market

김정하,권혁구,이규민,이동원 한국경영정보학회 2023 한국경영정보학회 학술대회논문집 Vol.2023 No.11

The growing resale sector is attracting attention from both real-world practitioners and metaverse enthusiasts. Resellers' ability to set prices based on item valuations is a key draw, yet the lack of a defined reference price leads to uncertainty. This results in polarized price fluctuations, with some items wildly changing while others remain stable. Previous research neglected owner characteristics as price determinants due to data limitations. This study analyzes dynamic factors influencing resale prices using transparent metaverse data from Roblox, a major platform. The findings offer insights for resale platform practitioners, allowing them to refine price determinants or implement more sophisticated dynamic pricing strategies.

Silibinin Inhibits Osteoclast Differentiation Mediated by TNF Family Members

김정하,김갑순,Hye Mi Jin,송인선,Bang Ung Youn,Junwon Lee,Nacksung Kim 한국분자세포생물학회 2009 Molecules and cells Vol.28 No.3

Silibinin is a polyphenolic flavonoid compound isolated from milk thistle (páäóÄìã=ã~êá~åìã), with known hepatoprotective, anticarcinogenic, and antioxidant effects. Herein, we show that silibinin inhibits receptor activator of NF-κB ligand (RANKL)-induced osteoclastogenesis from RAW264.7 cells as well as from bone marrow-derived monocyte/macrophage cells in a dose-dependent manner. Silibinin has no effect on the expression of RANKL or the soluble RANKL decoy receptor osteoprotegerin (OPG) in osteoblasts. However, we demonstrate that silibinin can block the activation of NF-κB, c-Jun N-terminal kinase (JNK), p38 mitogen-activated protein (MAP) kinase, and extracellular signal-regulated kinase (ERK) in osteoclast precursors in response to RANKL. Furthermore, silibinin attenuates the induction of nuclear factor of activated T cells (NFAT) c1 and osteoclast-associated receptor (OSCAR) expression during RANKL-induced osteoclastogenesis. We demonstrate that silibinin can inhibit TNF-α-induced osteoclastogenesis as well as the expression of NFATc1 and OSCAR. Taken together, our results indicate that silibinin has the potential to inhibit osteoclast formation by attenuating the downstream signaling cascades associated with RANKL and TNF-α.

NRROS Negatively Regulates Osteoclast Differentiation by Inhibiting RANKL-Mediated NF-κB and Reactive Oxygen Species Pathways

김정하,김갑순,김인영,성세문,김낙성 한국분자세포생물학회 2015 Molecules and cells Vol.38 No.10

Negative regulator of reactive oxygen species (NRROS) is known to repress ROS generation in phagocytes. In this study, we examined the roles of NRROS in both osteoclasts and osteoblasts. Our results demonstrate that NRROS negatively regulates the differentiation of osteoclasts, but not osteoblasts. Further, overexpression of NRROS in osteoclast precursor cells attenuates RANKLinduced osteoclast differentiation. Conversely, osteoclast differentiation is enhanced upon siRNA-mediated knockdown of NRROS. Additionally, NRROS attenuates RANKLinduced NF-κB activation, as well as degradation of the NOX1 and NOX2 proteins, which are required for ROS generation. Based on our observations, we present NRROS as a novel negative regulator of RANKL-induced osteoclastogenesis.

‘원형론’과 ‘제의적 신화론’의 성찰과 재고 -김열규 저 『한국민속과 문학연구』를 중심으로-

김정하 한국민속학회 2023 韓國民俗學 Vol.78 No.-

이 글은 한국민속학의 방향을 가늠하고 연구방법론을 모색하기 위해 1971년 출간된 『한국민속과 문학연구』가 한국민속학에 미친 영향을 돌아보는 글이다. 『한국민속과 문학연구』는 러시아 형식주의를 비롯한 구조주의, 정신분석학 등에서 빌어온 다양한 개념을 원용한 ‘원형론’을 한국 민담의 구조와 민속의 분석에 적용하고 제의학파로부터 차용한 ‘제의적 신화론’으로 민담과 민속, 문학작품을 분석하여 그 상징성과 신성성과 초월성 등을 구명했다. 이 연구방법론은 부락제의 통과제의적 특성을 비롯하여 민담과 동화, 소설, 드라마, 영화 등에서 시대양식과 전통, 관습적 형식의 속성을 찾아내고 구명하는 데 적절함을 입증해 보였다. 오늘의 시점에서 보면 『한국민속과 문학연구』는 근대기 이래 한국민속을 타자화한 식민주의적 논리에 적극 대응했다고 보기 어렵다. 이 책이 출간되던 당시의 연구풍토 역시 1990년대 이래 ‘민족’이나 ‘전통’이 고정불변의 개념이 아니라는 비판에 비추어 차이가 있다. 또 이 책은 근대기 이래 중앙집권적 표준화가 자행된 민속연구에서 이를 비판하고 한국민속의 지역성을 드러내는 데도 소홀했다. 더불어 개인의 일상과 욕망 등 다양한 가치가 주목받는 현대에 이르러 ‘신화적 제의론’은 민속현상의 분석에 적합하지 않은 점도 드러난다. 그럼에도 『한국민속과 문학연구』가 구명해낸 보편성은 역사적이고 세속적인 타자화나 표준화를 초월하여 한국민속을 고찰할 수 있는 가능성의 근거로서 마련되었다고 볼 수 있다. 더구나 김열규 선생은 민속연구를 통해 시대적이고 세속적인 삶을 아우르면서도 초월적 신성(神性)을 추구하는 방법론을 제시했다. 그것은 역사적 사회적 변화에 의한 일시적 시대적 현상으로서의 사회적 현상을 초월하여 민속을 통해 인간의 운명을 지배하는 동인을 파악함으로써 궁극적으로는 ‘영원회귀’와 ‘구원’을 추구하는 방법론이었다. 그러므로 신화와 맞물린 현실을 분석하여 ‘완전타자(完全他者)’로서의 신인동존(神人同存)을 추구하고자 하는 『한국민속과 문학연구』의 방법론은 오늘날의 민속연구에도 크게 참조할 점을 지니고 있다고 본다. This treatise aims at explaining about the influence and implication on studying Korean folklore by the methodology of 『Studies on Korean Folklore and Literature』 published in 1971. That book proposed new methodology to research similarities of Korean folktale, rite, myth, poet and dream receiving theories of anthropology in 19th century, Cambridge school’s numismatology, Ritual school’s mythology and psychoanalysis. At that time, some scholars criticized that the methodology of 『Studies on Korean Folklore and Literature』 was follow of western folklore studies. But it is clear that the methodology opened way to research university of Korean folklore. For this object that book applied ‘archetypal theory’ used multiple concepts like archetypal symbol, pattern, typicality, totality, ‘langue / parole’ and ‘deep structure / surface structure’ etc. borrowed from Russian formalism, structurism and psychoanalysis to analyze structure of folktale and aspect of folklore. At the same time, this book tried to clarify the sanctity and the transcendence of Korean folktale, folklore and literatural works to adapt ‘mythology about rite’ borrowed from ritual school’s thesis “myth is correlative spoken of rite”. This methodology was effective to find out the features of transcending style, tradition and convention of Korean folktale, fairy tale, novel, drama and movie etc. and the features of village festival as initiation rite. However 『Studies on Korean Folklore and Literature』 did not aggressively counteract to the otherization(타자화) affected from outer influences to study about Korean folklore. Addition to that, new criticism raised that ‘nation’ and ‘tradition’ were not concepts set in stone in 1990s. And that book was careless to find out the locality of Korean folklore to try to suggest post-structural criticism against centralized standardization which was pursued in folklore studies in modern ages. Coming closer to nowadays, monistic ‘mythology about rite’ becomes to be recognized not to prefer to understand present folk phenomena in which individual daily life and desire are considered important. Reconsidering the influence and implication of 『Studies on Korean Folklore and Literature』, this treatise tried to verify that new methodology was proposed by that book to transcendental holiness to control secular life of the times with folklore. Folklore was considered instrument to imply temporal phenomena of the times changed historically and socially. At the same time folklore was considered medium to dominate destiny and to pursue ‘eternal recurrence’ and ‘salvation’. Therefore the methodology of 『Studies on Korean Folklore and Literature』 is still thought to be useful theory to research archetype and to pursue coexistence of god and human as ‘absolute other(완전타자)’.

Thiazide系 藥物로 因한 血糖 變動 및 數種疾患에서의 糖負荷試驗成績

金貞河,金弘吉,李柱衡 中央醫學社 1941 中央醫學 Vol.10 No.6

초고령사회를 대비한 국내 고령자용 식품 유형

김정하 대한의사협회 의료정책연구원 2023 의료정책포럼 Vol.21 No.1

자동차와 IT 융합

김정하 제어로봇시스템학회 2010 제어로봇시스템학회 국내학술대회 논문집 Vol.2010 No.5

한국 블루투어리즘의 갈등과 해소방안

김정하 동북아시아문화학회 2009 동북아 문화연구 Vol.1 No.21

A research for some problems of Blue Tourism in Korea Kim, Jung-Ha This treatise aims at the explaining about current trend of marine tourism in Korea. Especially the blue tourism represents urban residents' taste to enjoy 3S(sun, sand, sea) by seaside resorts and to have cultural exchange between fishing village residents and urban residents. It is necessary to understand the blue tourism that fishing village residents and urban residents have to be two subjects and have to help each other. By the blue tourism, fishing village residents can get income and keep their identity, and urban residents can have enjoy holiday and pleasure recreation in marine area. To do so, the two subjects must have correct understanding about the blue tourism and must make efforts to develop programs which are enjoyed together. Therefore, the blue tourism in not only a form of general tourism but also a kind of movement to make fishing village more advanced, ecological residence. If it is possible to make fishing village such place by the blue tourism, we can expect to restore humanity and reconstruct community from the result.

동아시아편 : 기업문화와 상관습: 이탈리아: 중소기업중심의 상관습 문화/불도저와 사기꾼: 독일과 프랑스 비즈니스 문화에 관한 소극(笑劇)

김정하,윤용선 한국외국어대학교 외국학종합연구센터 2003 국제지역정보 Vol.7 No.6