혈액투석 환자의 가성 고칼륨혈증

최창렬,조형도,강태영,이준수,한호,정청일,이동규,유준호,한상웅,김호중 대한신장학회 2001 대한신장학회잡지 Vol.20 No.5

정의적 특성이 수학적 문제 해결력에 미치는 영향

강호욱,노은환,박은진,송현준,이혜경,주채연 진주교육대학교 초등교육연구소 2005 科學敎育硏究 Vol.28 No.-

The purpose of this study is to provide some basic data which can be helpful for improving the methods of mathematics teaching-learning emphasizing the affective factors by investigating the effect on affective characteristics and mathematical problem solving ability of the students on the elementary school sixth grade. In order to achieve these purpose, the following research problems were set up for the present study: The results of this study are as follows: First, it was appeared that there was not any difference on attitude on mathematics, belief, self-confidence and the degree of mathematical problem solving ability by sex. Second, it was appeared that there was some statistical meaningful difference on attitude on mathematics, belief, self-confidence and the degree of mathematical problem solving ability according to high middle low ability on mathematics which the students think that they have. Based on the results of this study, I'd like to give some suggestions as followings to provide some help to teaching and learning mathematics. First, the succeeding studies are needed by selecting different population from the population of this study, classifying low-ranking factors consisting of affective characteristics differently from this study, compounding each low-ranking factors in various manners like using new items, etc. Second, the succeeding studies are needed in this part, because what mathematical belief teachers have mathematics can have an effect on students' mathematical belief and action as well as on teachers' thinking process and action in the class. Third, the succeeding studies are needed to develop concrete field study and program which can be helpful for improving actually students' affective behavior characteristics in school field.

대학의 조직문화와 조직유효성의 관계

강준의,김창호 남서울대학교 경영연구센타 2000 경영연구 Vol.2 No.-

The purpose of this study was to verify positively the relationships between university organizational culture and its organizational effectiveness. Specially, the researcher has tried to identify the possibilities of an application of organizational culture in the management of University, therefore, the relationships between those two factors which has been recognized by the faculty members as well as the workers in the university. The independent variables were the patterns of university organizational culture, the control variables were the patterns of individualism-collectivism, and dependent variables were the concentration into the organization and the citizens' organizational actions which were regarded as the organizational effectiveness. The patterns of the university organizational culture were classified as the relationship oriented, renovation oriented, the task oriented, and hierarchy structure oriented. The subjects of this study were the faculty members and the workers who were in the randomly selected 33 universities in Korea. The results of this study were as follow: First, there were no significant differences in the effects of the renovation oriented, the task oriented, and hierarchy structure oriented on the organizational effectiveness, however, the patterns of the relationship oriented showed the positive effects on the organizational effectiveness. Second, there were the significant differences in the effects of the patterns of individualism & collectivism on the organizational effectiveness. The subjects who showed the stronger collectivism were regarded positively in the organizational effectiveness. In this study, the organization members showed the stronger collectivism than individualism. Third, the highly positive effectiveness of organizational structure were revealed when the workers showed the renovation oriented with their individualism, which indicated the positive effectiveness could be expected on the organizational performances with the organization members' priority of renovation and with their personal task in forward. Also, the negative effects could be expected on the organizational effectiveness when the individualism were oriented on the university performances instead of collectivism oriented with their task oriented patterns. The concentration on the organization and the organizational citizens' actions were influenced more positively by the members' patterns of value system compared to the patterns of organizational culture. The university organizational culture and its organizational effectiveness were reviewed historically and its definitions were demonstrated academically in this study, however, the failure of showing the definitions in the broader meanings of the relationships between university organizational cultures and the organizational effectiveness has been overcome by the reviewing the patterns of organization citizens' actions which were required for the management of university individuals.

독성물질의 세포사 기전 및 세포사 유발물질의 검색법 개발에 관한 연구(Ⅰ) : 독성물질로 인한 파킨슨병 모델에서의 세포사 기전 연구 Study on the cell-death mechanisms of toxin-induced parkinsonism

강태석,김종민,서경원,김영옥,김준규,오재호,이윤동,김규봉,오정자,송연정,임종준,전범석,문전옥,최광식 식품의약품안전청 2000 식품의약품안전청 연보 Vol.4 No.-

MPTP 독성물질이 도파민성 신경세포에 선택적으로 작용하여 산화성 손상에 의한 신경세포사를 일으키는 것을 이용하여 파킨슨병의 동물모델을 만들고, 이를 통해서 아폼토시스를 비롯한 포사의 기전에 대한 연구 및 너코틴의 신경세포 보호효과 여부를 판정하는 실험을 병행하고자 하였다. 파킨슨꾐의 동물모델을 MPTf 독성 물질을 이용하여 확립하였으며, MPTP(30mgag, i.p.)를 투여한 후 1, 2,3, 4, 5일째 흑질 조직을 채춰하여 tarm로 박걸하여 tyrosine hydroxylase 면역조직화학염색을 수행하여 cell countif우한 결과, control은 57.635ce11s, 1일째 친.OfDells,2일째 57.9±6cells,3일릴 없.3±죠ells, 4일째 49.0츠3cells, 5일째 39.4±Scells료 4, 3일째 뚜렷한 신경세포 수의 감소를 보였다. 신경세포사 기전 규명을 위한 아폼토시스 분걱에서는 벼PTP 투여 후 1, 2, 3, 4, 5일째 조직을 채취하여 Hoechst staining, TUNEL staining을 수곡하였는데 양성 반응을 보인 신경세포는 관찰되지 않아. 아폼토시스로 인한 세포사가 관찰되지 않았다. bIPTP 파킨슨병 동물모델에서 nicotine 보호효과 탐색에 관한 실험은 nicat푸e 0.2mgAg을 5일 퐁안 투여 후 리『fP(30mgag)를 CS7Bt/6 마은스에 복강 내주사로 nicotine과 병용 투여한 후 1, 2, 3, 4, 5일째 뇌를 적출하땄다. 신경세포사가 뚜렷이 관찰되기 시작하는 4, 5일째의 신경세포 수의 감소 정도를 20. 30% 정도 약화시키는 경향을 보였으나, nicotine 보호효과에 대한 추가 실헝이 현재 수행 중에 있다. The cause of Parkinson's disease (PD) is largely unknown. However, free radical toxicit? may plaf a role ip. the degeneration of substantia nigra, which is the Hajorfocus of pathological damages in PD. Recently, a neuroprotective effect of nicotine in PD has been suggested. Therefore, the mechanism of neurodegenerafion and protective potential o( nicotine in PD were investigated in the experimental modeB of Pll using a neurotoxin, C57BL/6mice were administered with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP, 30 mg/kg,j.p.). The degree of neurodegenerafion was determined by immunohistochemical stainiHB oftyrosine hydroxylase (TH). TH-positive cells on nigral sections were found 56.0 ±4, 57.9 ±6,52.315ce11s, 49.0±3cells, and 39,4±Scells at days 1, 2, 3, 4, 5, respectively (controls : 57.6±Scells). Hoechst and TUNEL staining showed no evidence of apoptosis. The exandnation on themice co-adrunistered with nicotine(0.2mgAg) and MPTP(30mgag) revealed a tendency ofnicotine protective effects. At days 4 and 5, the degree of TH-positive cells was decreased by20-30%, In corclusiffn, the role of apoptosis was not evidenced in this MPTP modeB of PB.The possible proteccon by nicotine should be elucidated with further studies.

질소시비수준 및 Ryegrass 유혼파가 겉뿌림 초지개량에 미치는 효과 : Ⅰ. 정착율, 식생구성율 및 건물수량에 관한 효과

강호준,김문철 濟州大學校 農科大學 動物科學硏究所 1992 動物科學論叢 Vol.7 No.1

This experiment was carried out to determine the effect of improvement of oversown pastures, treated with four nitrogen(N) application levels(0, 100. 200. 300 kg/ha) and three species mixtures (A:orchardg-rass+ ladino clover: B: orchardgrass+ ladino clover+ perennial ryegrass; C: orchardgrass+ ladino clover+ perennial ryegrass+ Italian ryegrass). The establishment of perennial ryegrass, Italian ryegrass, and ladino clover were increased with inc-reased N applications. but the ryegrass mixed with orchardgrass and ladino clover decreased the establi-shment of ladino clover. With the increase of N application levels, orchardgrass, perennial ryegrass and Italian ryegrass in com-parison on botanical composition were getting better, while the native plants established already were de-creased. The botanical composition of newly sown pasture plants was increased as cutting times progres-sed. The dry matter(DM) yield of pasture species increased significantly with N application up to 300 kg/ha. There was no significance among mixture treatments, although the DM yield of basic treatment(0rchardg-rass + ladino clover) was higher than other treatments. However, when compared DM yields on each cut-ting times, newly oversown pastures in A treatment was shown to be significantly higher only on 2nd outting time than other treatrnents(P<0.05). The DM yield of native plants survived in basic species mix-ture was significantly less than those of other mixtures(P<0.05). Results of this study indicate that for improving oversown pastures, at least 300 kg/ha N application should be applied, and basic mixture (orchardgrass+ ladino clover) has more advantage than treatments mixed with ryegrass.

전자자기공명장치 (ESR)를 이용한 식물조직에서 생성되는 산소 라디칼의 간편한 측정 방법

강호종,박해준 진주산업대학교 1999 산업과학기술연구소보 Vol.- No.6

지금까지 널리 사용되어 온 전자자기공명장치를 이용한 산소 라디칼의 측정벙법은 in vitro에서 이루어져 왔다. 본 실험에서는 이를 개선하여 식물조직에서 직접 산소 라디칼을 측정하는 방법을 개발하였다. 식물에서는 여러 스트레스에 대해서 활성산소가 생성된다. 특히, 병원 미생물에 대해서는 이들 활성산소가 실물저항성 반응 유도에 시그날로서 중요한 역할을 한다. 이들 활성산소 중 산소라디칼은 반응성이 뛰어나고 그 수명이 짧아 생체조직에서 측정하기가 무척 까다롭다. 본 실험은 이들 문제를 해결하여 식물생체조직에서 비교적 저렴한 비용으로 정확한 정량측정을 가능하게 하였다. 본 실험방법을 응용하면 식물조직에서의 다른 생체 라디칼도 직접 정량적인 측정할 수 있다. 그리고 식물 스트레스 연구에 많은 기여가 기대된다. We developed methods for using electron spin resonance (ESR) analysis developed quantitative measurement of oxygen radical during elicitor-induced oxidative burst (OXB) on the surface of plant tissues. The ESR analysis using an O_2 trapper, Tiron, provided a convenient assay for O_2 during elicitor-induced OXB producing various AOS on plant tissue surface.

우심방을 침범한 거대 비호지킨씨 림프종 1예

강상범,진승원,이은경,박용현,최용호,김용주,박준철,김재형,홍순조,최규보,권종범,원용순,박건,이은희 대한순환기학회 2000 Korean Circulation Journal Vol.30 No.4

전남 동부권 패밀리레스토랑 음식서비스질과 만족의 관계에 미치는 가치의 조절효과

강종헌,이준호 한국조리과학회 2004 한국식품조리과학회지 Vol.20 No.6

The purpose of this study was to test the moderating effect of value on relationship between foodservice quality and satisfaction in family restaurant. Accordingly, this study surveyed by questionnaire concerning 18 items of foodservice quality, 1 item of overall satisfaction, 1 item of value as well as respondents' characteristics. The result of this study were as follows. KMO and Bartlett's test statistics showed that the data fitted factor analysis well. Results of factor analysis, average variance extracted estimates and shared variance showed that the convergent and discriminant validitys of 4 factors were supported, and cronbach's alpha showed that the internal consistency of 4 factors was supported. It was found that satisfaction was influenced by the interaction between 4 factors of service quality and value rather than by either service quality or value directly. Finally, The results indicated that high level of service quality might not lead customer satisfaction because of moderating effect of value.

세침 흡인술을 이용한 종창된 림프절의 세포학적 평가

백강현,윤기영,최호정,정성목,이영원,조성환,박성준 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2011 動物醫科學硏究誌 Vol.18 No.1

Fine needle aspiration(FNA) cytology is considered as the diagnostic technique of choice in the assessment of swellen lymph nodes. The aim of this study is to determine the indication and diagnostic method of FNA of lymph node lesions performed at Veterinary Medicine Teaching Hospital of Chungnam National University. The records of 16 patients which had undergone FNA during the study period were retrieved. The cytological results were classified as lymphadenitis, lymphoid hyperplasia and lymphoma. Lymphoma cases were classified as B-cell origin and T-cell by immunophenotyping. The result of the FNA cytological diagnosis showed that nine (56%) of the patients were lymphoma, five (31%) of the patients were lymphoid hyperplasia and two (13%) of the patients were lymphadenitis.

SCM420 기어의 表面處理 效果에 關한 硏究

姜昌鎬,李鎭伊,柳晟基,朴俊哲 慶尙大學校生産技術硏究所 1999 生産技術硏究所論文集 Vol.15 No.-

This study deals with effects of surface treatment on the bending fatigue strength of SCM420 spur gears. We manufactured gears using manufacture processes that are currently used in most gears manufacturing companies, we applied heat-treatment, and then we applied shot peening. In addition, we investigated the effect these surface-treatments had on hardened layer and compression residual stress in the risk section of the teeth. The fatigue test at a constant stress amplitude is performed by using an electrohydraulic serve-controlled pulsating tester. The S-N curves are obtained and illustrated. We investigated the effect of surface-treatment on fatigue strength and the position of crack of gear teeth.