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예비수학교사의 신념에 따른 교수학적 내용지식(PCK)과의 관련성에 관한 연구
고상숙,김은호,문정윤,배지은,정대진 이화여자대학교 교과교육연구소 2011 교과교육학연구 Vol.15 No.4
This study investigated the relationship between PCK (Pedagogical Content Knowledge) and pre-service mathematics teachers' mathematical beliefs, and the effects of PCK on their teaching. The data were collected through pre & post interviews, a questionnaire, and classroom observations of six pre-service mathematics teachers who were taking their field practica in their senior year. The results indicate that the pre-service mathematics teachers' differing beliefs about the nature of mathematics affected their PCK. This study showed the relationship between their beliefs about teaching and the learning of mathematics and PCK. It is recommended that more opportunities for PCK development, as well as for modifications in of their beliefs have to be offered in education programs for pre-service mathematics teachers. 본 연구의 목적은 예비수학교사들의 수학적 신념과 수업에서 발현된 교수학적 내용지식(PCK)의 특징을 알아보고, 이를 통해 수학적 신념에 따른 PCK의 관련성에 대해 분석하는 것이다. 이 연구는 교육실습 중인 예비수학교사 6명을 대상으로 실시한 PCK 설문지, 인터뷰 자료, 수업관찰 자료를 분석하는 질적 연구 방법을 토대로 하였다. 연구결과, 예비수학교사들의 다양한 수학 본질에 대한 신념은 PCK에 서로 다른 영향을 주었으며, 수학 교수-학습에 대한 신념과 PCK사이에는 밀접한 관련성이 있음을 볼 수 있었다. 따라서 신념과 교수학적 내용지식(PCK)을 함께 발달시킬 수 있는 예비교사 연수 및 지원 프로그램의 확충이 필요하다.
이순자,고대희,최운정 서강대학 지역발전연구소 1998 지역발전연구 : 서강전문대 Vol.4 No.2
This study was made to find out the relationship between the body mass index (BMI) and food habit among 68 male and 304 female college students. A self-report questionnaire was used about the height, weight and food habit. The summary of the results are as follows : The average age of the male subjects is 20.52, female subjects is 19.64. Almost all of the subjects were in the criteria of standard weight group and low weight group. However female subjects regard themselves more obese than their actual body shape and male subjects regard themselves more thinner than their actual constitution. Almost of the subjects were lack of exercise and the correlation between BMI, regular exercise and regular eating was significant. Food habit score was within the category of Fair or Poor group. All the male and female subjects have highest score in green-yellow vegetables intake and the lowest score in seaweeds intake. Therefore nutrition education for the desirable dietary life management of college students should be carried out with respect to the correct perception of ideal body shape and actual self body shape and the adequate weight control diet.
엘니뇨 현상에 의한 중서부태평양 한국 다랑어 선망어업 어장 변동
안두해,문대연,고정락,조규대,김동선 한국수산자원학회 2003 한국수산자원학회지 Vol.6 No.-
This paper describes the relationship between the distribution of fishing ground and E1 Nino events in the pacific Ocean which have occurred on a regular basis of 3-5 year terms. Anneal catches and catch ratios of skipjack. Katsuwonus pelamis and yellowfin tuna. Thunnus albacares largely increased during El Nino years due to the increasing of accessibility in accordance with the eastward extend of fishing ground, but vice versa during La Nina years. It is suggested that during El Nino years, the fishing grounds of Korean tuna purse seine fishery were extended to eastward in associated with the eastward advection of warm pool which was located in western equatorial Pacific Ocean during the normal state and characterized by the over 28℃ and low nutrients water masses.
임상빈,송대진,좌미경,고정삼 濟州大學校工科大學産業技術硏究所 1995 尖端技術硏究所論文集 Vol.6 No.-
초피를 유기용매 및 초임계이산화탄소와 보조용매로서 에탄올로 추출하여 각각의 추출수율을 측정하고, 이들 추출물들의 항균활성을 검색하였다. 유기용매별로 추출하여 각각의 추출수율을 측정한 결과, 증류수인 경우 20%로서 가장 높았고, 나머지 헥산, 에테르, 에탄올인 경우 3%이하로 매우 적었다. 또한 추출 용매로 초임계이산화탄소-에탄올을 병용했을 때 초피의 추출수율과 용해도는 초임계이산화탄소만을 사용했을 때보다 1.4배 이상 높았다. 용매별 추출물들의 항균성을 검색한 결과 모든 추출물들이 B.cereus에 대해 항균성을 나타내었는데, 특히 에탄올, 에테르 추출물들의 항균성이 더 큰 것으로 나타났다. 초임계이산화탄소-에탄올 추출물은 초임계이산화탄소만을 사용한 추출물과 거의 동일한 항균성을 나타내었다. Extraction yields of Zanthoxylum piperitum by organic solvents and supercritical carbon dioxide(SC-CO₂) with and without ethanol as a cosolvent, and antimicrobial activities of the extracts against Bacillus cereus were determined. Extraction yield by distilled water was the highest, 20%, while those by ethanol, ethyl ether and hexane were less than 3%. Extraction yield by SC-CO₂ with ethanol was 1.42 times greater than that by only SC-CO₂ Ethyl ether- and ethanol-extracts had potent antimicrobial activities against B.cereus. Extraction yield by SC-CO₂ with ethanol showed almost the same degree of microbial growth inhibition as that by only SC-CO₂.
임상빈,좌미경,송대진,고정삼 濟州大學校 産業技術硏究所 1995 산업기술연구소논문집 Vol.6 No.-
Extraction yields of Zunthoxylum piperiturn by organic solvents and supercritical carbon dioxide(SC-CO_(2)) with and without ethanol as a cosolvent, and antimicrobial activities of the extracts against Hucillus cereus were determined. Extraction yield by distilled water was the highest, 20%, while those by ethanol, ethyl ether and hexane were less than 3%. Extraction yield by SC-CO_(2) Lvith ethanol was 1.42 times greater than that by only SC-CO_(2). Ethyl ether- and ethanol-extracts had potent antimicrobial activities against B. cereus. Extraction yield by SC-CO_(2) with ethanol showed almost the same degree of microbial growth inhibition as that by only SC-CO_(2).
First Record of Japanese Codling, Physiculus japonica Hilgendorf (Moridae, Gadiformes) from Korea
Koh Jeong-Rack,Moon Dae-Yeon The Korean Society of Fisheries and Aquatic Scienc 2003 Fisheries and Aquatic Sciences Vol.6 No.2
The Japanese codling fish, Physiculus japonica (family Moridae) is recorded as new to the Korean fish fauna. The specimen was fished from the South-Eastern waters off Jeju Island, Korea in March 1999. Standard length of the specimen was 343.2 mm, with a thin barbel on ower jaw, 67 soft second dorsal rays, 71 soft anal rays and 12 lateral-line above scales. Identification key of this specimen as P. japonica in the family Moridae was teethless vomer, chin barbel and well-developed black ventral light organ located on the anterior of anus. We give a new Korean name Dol-dae-gu for P. japonica.
Basic : A case of propylthiouracil-induced acute hepatic failure (초)
( Dae Seon Ahn ),( In Hee Kim ),( Ji Youn Sohn ),( Dae Hun Kwon ),( Kang Hun Koh ),( Bum Soo Jeong ),( Seong Hun Kim ),( Sang Wook Kim ),( Seung Ok Lee ),( Soo Teik Lee ),( Dae Ghon Kim ),( Hee Chul Y 대한간학회 2011 Clinical and Molecular Hepatology(대한간학회지) Vol.17 No.3(S)
( Se Jeong Park ),( Hye Jeong Park ),( Soo Jung Kim ),( Hwa Jeong Shin ),( In Soon Min ),( Kwang Oh Koh ),( Dae Young Kim ),( Hyung Sun Youn ) 생화학분자생물학회(구 한국생화학분자생물학회) 2011 BMB Reports Vol.44 No.7
Toll-like receptors (TLRs) are pattern recognition receptors that recognize molecular structures derived from microbes and initiate innate immunity. TLRs have two downstream signaling pathways, the MyD88- and TRIF-dependent pathways. Dysregulated activation of TLRs is closely linked to increased risk of many chronic diseases. Previously, we synthesized fumaryl pyrrolidinone, (E)-isopropyl 4-oxo-4-(2-oxopyrrolidin-1-yl)-2-butenoate (IPOP), which contains a fumaric acid isopropyl ester and pyrrolidinone, and demonstrated that it inhibits the activation of nuclear factor kappa B by inhibiting the MyD88-dependent pathway of TLRs. However, the effect of IPOP on the TRIF-dependent pathway remains unknown. Here, we report the effect of IPOP on signal transduction via the TRIF-dependent pathway of TLRs. IPOP inhibited lipopolysaccharide- or polyinosinic-polycytidylic acid- induced interferon regulatory factor 3 activation, as well as interferon- inducible genes such as interferon inducible protein-10. These results suggest that IPOP can modulate the TRIF-dependent signaling pathway of TLRs, leading to decreased inflammatory gene expression.
( Jeong Gil Leem ),( Sung Hoon Kim ),( Jae Sik Nam ),( Dae Kee Choi ),( Won Wook Koh ),( Jeong Hun Suh ),( Jun Gol Song ),( Jin Woo Shin ) 대한통증학회 2011 The Korean Journal of Pain Vol.24 No.4
Background: Spinal nerve ligation (SNL) injury in rats produces a pain syndrome that includes mechanical and thermal allodynia. Previous studies have indicated that proinflammatory cytokines such as tumor necrosis factor-a (TNF-a) play an important role in peripheral mediation of neuropathic pain, and that altered dorsal root ganglion (DRG) function and degree of DRG neuronal apoptosis are associated with spinal nerve injury. The present study was conducted to evaluate the expression of TNF-a and the extent of apoptosis in the dorsal root ganglion after SNL in rats. Methods: Sprague-Dawley rats were subjected to SNL of the left L5 and L6 spinal nerves distal to the DRG and proximal to the formation of the sciatic nerve. At postoperative day 8, TNF-a protein levels in the L5-6 DRG were compared between SNL and naive groups using ELISA. In addition, we compared the percentage of neurons injured in the DRG using immunostaining for apoptosis and localization of activated caspase-3. Results: SNL injury produced significant mechanical and cold allodynia throughout the 7-day experimental period. TNF-a protein levels were increased in the DRG in rats that had undergone SNL (12.7 ± 3.2 pg/100 mg, P < 0.001) when compared with naive rats (4.1 ± 1.4 pg/100 mg). The percentage of neurons or satellite cells co-localized with activated caspase-3 were also significantly higher in rats with SNL than in naive rats (P < 0.001, P < 0.05, respectively). Conclusions: SNL injury produces mechanical and cold allodynia, as well as TNF-a elevation and apoptosis in the DRG.