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신정옥,심일구,이항재,김희범 순천향의학연구소 1999 Journal of Soonchunhyang Medical Science Vol.5 No.1
Objective : Our purpose of this study was to evaluated the incidence of twin pregnancy with one fetal demise, predisposing factors and the maternal complications and perinatal outcomes. Patients : From January 1993 to December 1997, 5 twin pregnancy with single fetal demise after 28 weeks gestation by gestational age were observed in Soonchunhyang Kumi Hospital. Results : 1. The incidence of one fetal demise was 3.01% in twin pregnancy. 2. Maternal disseminated intravascular coagulation has not been demonstrated. 3. The predisposing factors of twin pregnancy with single fetal demise are umbilical cord torsion (40%), congenital anomaly(20%) and unknown(40%). 4. According to chorionicity, it seems that the perinatal mortality rate of monochorionic group was higher than dichorionic. Conclusion : This study suggests that monochorionic placentation is associated with increased risks of twin pregnancy with single fetal demise. But it may be partially explained due to small numbers of cases in this study.
科學 探究能力 評價 問題 類型 變化에 關한 縱斷的 硏究
우종옥,이항로,구창현 한국교원대학교 과학교육연구소 1996 청람과학교육연구논총 Vol.6 No.1
This study investigated the literature about science process skills' evaluation to analyse transition of evaluation objectives before and after a Scholastic Ability Test for College Entrance. In the literature survey the researcher established a 3 dimensional science assessment framework with X axis as science concept, Y axis as science process skills and Z axis as problem context. In order to analysis and compare each items the researcher selected 210 items from the 1st to the 7th trials and 138 items from the 1st to 4th Scholastic Ability Test for College Entrance and sampled 2873 science achievement test items from 10 high schools. In accordance with this taxonomy the researcher analysed and compared science process skills item forms. The following results were drawn: The items were evenly distributed in all the four areas(Earth Science, Biology, Physics and Chemistry) of the science concept domain, but they were heavily concentrated on data analysis and drawing a conclusion in science process domain. In the domain of problem context school context was the majority. In spite of distribution like this the ratio on science process skills measurement items and science achievement test items was increased after the Scholastic Ability Test for College Entrance was given. Also the ratio on item expression type was increased. Item form was almost 5 options selection type in the national level test. Although there were 4 options selection type, 5 options selection type, short answer type, essay type in school level test, rising from 33.1% to 65.5% on 5 options selection type is exhibited. This study showed that the school level item form was better various than the nation level. This point like this is the evidence for the improvement toward the science process skills test and influenced by Scholastic Ability Test for College Entrance. The ratio on the item which joined with the 3 axes had a mean of 99.3% in nation level test and mean 44.9% in school achievement test level. But the ratio in the school achievement test level increased after the Scholastic Ability Test for College Entrance was given. In view of this study we must furthermore study the item types which can evaluate validately science process skill's five stage each and evaluation method by the high school students' problem solving patterns and features in scientific inquiry on all science process skills elements.
( Hang Goo Yun ),( Jin Ha Kim ),( Tae Hwa Lee ) 대한산부인과학회 2012 Obstetrics & Gynecology Science Vol.55 No.8
We describe here the case of a 65-year-old women presenting with a hemorrhagic tumor around the anterior vaginal wall and vulva. She was diagnosed with malignant fibrous histiocytoma from the findings of cytological analysis of biopsied surface tissue, histopathologic analysis of biopsied, and immunohistochemical staining. In her past history, twenty years ago, she was diagnosed with cervical cancer, staging Ib and received surgical treatment and chemotherapy. Ten years ago, she received radiotherapy because of recurrence of cervical cancer in vaginal vault. After surgical excision for malignant fibrous histiocytoma, we recommended chemotherapy but she refused. After 24 months from initial diagnosis, she died.
Case Reports : Undifferentiated Sarcoma Arising In A Mature Cystic Teratoma Of The Ovary
( Hang Goo Yoon ),( Eun Sil Lee ),( Heung Yeol Kim ) 대한산부인과학회 2012 Obstetrics & Gynecology Science Vol.55 No.8
Malignant transformation within a mature cystic teratoma occurs in less than 2% of cases and most commonly results in a squamous cell carcinoma. Other reported malignancies include adenocarcinoma, various pure sarcomas, melanomas and basal cell carcinomas, and anaplastic carcinoma. We report a rare case of a 46-year-old woman with undifferentiated sarcoma arising in a teratoma of the ovary.
A medium-maturing, disease resistant and good-quality rice variety Geumanbyeo
Hung-goo Hwang,Yeon-gyu Kim,Ha-cheol Hong,Yong-hwan Choi,Man-kee Baek,Im-soo Choi,Young-chan Cho,Chang-in Yang,Hong-yeol Kim,Jong-doo Yea,Young-seop Shin,Kyung-ho Kang,Sang-nag Ahn 한국육종학회 2007 한국육종학회지 Vol.39 No.4
“Geumanbyeo” is a new japonica rice variety developed by the rice breeding team of National Institute of Crop Science, RDA in 2002, which was derived from a cross between SR11878-14-4-1 of good eating-quality and high yield potential, and Suweon345 of lodging tolerance and resistance to diseases. Geumanbyeo is a medium-maturing variety with heading date of August 12 on ordinary planting in the middle plain area. It has a semi-erect plant type with culm length of 82cm, erect pubescent leaf blade and slightly tough culm with good canopy architecture. Geumanbyeo has a little bit fewer tillers per hill, and more spikelets per panicle than Hwaseongbyeo. It is slightly less tolerant to the cold stress in terms of both heading delay and spikelet fertility than Hwaseongbyeo. This variety shows delayed leaf senescence and considerable tolerance to viviparous germination at ripening stage. It shows moderately resistant to leaf blast and K1 race of bacterial blight, but susceptible to virus diseases and insect pests. The milled rice of Geumanbyeo exhibits translucent, relatively clear non-glutinous endosperm and medium-short grain. It showed lower amylose content of 18.6% and similar gelatinization temperature and better palatability of cooked rice compared to Hwaseongbyeo. The milled rice yield of this variety is about 5.32 MT/ha at ordinary culture in local adaptability test for three years. Geumanbyeo would be highly adaptable to the central lowland and mid-southern mountainous areas in Korea. “Geumanbyeo” is a new japonica rice variety developed by the rice breeding team of National Institute of Crop Science, RDA in 2002, which was derived from a cross between SR11878-14-4-1 of good eating-quality and high yield potential, and Suweon345 of lodging tolerance and resistance to diseases. Geumanbyeo is a medium-maturing variety with heading date of August 12 on ordinary planting in the middle plain area. It has a semi-erect plant type with culm length of 82cm, erect pubescent leaf blade and slightly tough culm with good canopy architecture. Geumanbyeo has a little bit fewer tillers per hill, and more spikelets per panicle than Hwaseongbyeo. It is slightly less tolerant to the cold stress in terms of both heading delay and spikelet fertility than Hwaseongbyeo. This variety shows delayed leaf senescence and considerable tolerance to viviparous germination at ripening stage. It shows moderately resistant to leaf blast and K1 race of bacterial blight, but susceptible to virus diseases and insect pests. The milled rice of Geumanbyeo exhibits translucent, relatively clear non-glutinous endosperm and medium-short grain. It showed lower amylose content of 18.6% and similar gelatinization temperature and better palatability of cooked rice compared to Hwaseongbyeo. The milled rice yield of this variety is about 5.32 MT/ha at ordinary culture in local adaptability test for three years. Geumanbyeo would be highly adaptable to the central lowland and mid-southern mountainous areas in Korea.
Concentrations of TSP-Bound Metals in Four Urban Residential Locations in Seoul, Korea
Nguyen, Hang Thi,Park, Chan Goo,Kim, Jin-A,Lee, Je-Seung,Lee, Jin-Hong,Kim, Ki-Hyun TheScientificWorldJOURNAL 2010 The Scientific World Journal Vol.10 No.-
<P>Concentrations of 17 trace metals bound in total suspended particulate (TSP) were measured at four urban residential locations (Jong Ro [JR], Gwang Jin [GJ], Gang Seo [GS], and Yang Jae [YJ]) in Seoul, Korea from February to July 2009. The maximum concentrations of metals were recorded by Fe in the range of 2599 (JR) to 2914 ng m<SUP>-3</SUP> (GJ), while the least values were observed from Ag or Co with a few ng m<SUP>-3</SUP>. The relative ordering of the mean concentration (ng m<SUP>-3</SUP>) at these sites is generally found on the order of Fe > Zn > Ba > Mn > Pb > Cu > B > Cr > Ni > Sr >V > As > Li > Cd > Mo > Co > Ag or with a few exceptions (e.g., a reversal between Ba and Mn or between Ni and Sr). Calculation of the enrichment factor suggests the significant role of man-made processes on such metals as Cd, Zn, and Pb. Inspection of the temporal patterns indicates the peak occurrence of most metals during the spring season due in part to the Asian Dust (AD) event. However, according to the factor analysis, sources of these metals were dominated by both resuspended soil/road dust and the combustion of fossil fuels. The overall results of our study suggest that the interaction between the environmental conditions and roadside traffic activities are paramount in explaining the metal pollution in these urban residential areas.</P>
이항구(Hang-Goo Lee),박관수(Gwan-Soo Park),이상진(Sang-Jin Lee),김길남(Kil-Nam Kim),박범환(Beom-Hwan Park),고영웅(Young-Woong Ko),윤준영(Jun-Young Yoon),김현숙(Hyoun-Sook Kim),이상혁(Sang-Hyuk Lee),강길남(Kil-Nam Kang) 충남대학교 농업과학연구소 2011 농업과학연구 Vol.38 No.1
This study was conducted to investigate changes on burned areas after a forest fire in Geyjoksan which occurred in April 2000. Both soil physicochemical properties and vegetation present were analyzed in burned and unburned sites of pinus densiflora according to two slope aspects(south and north-facing slopes). The results of the analysis are as follows. The appearance species of vegetation were 21, 15 and 18 for burned site, burned site-1 and burned site-2 of pinus densiflora community respectively, indicating that the occurrence of forest fire and slope aspects affect vegetation appearance. The pH values at 0~10㎝ soil depth of unburned and burned sites of pinus densiflora community were 5.04 and 5.12 respectively with no significant difference between them. Mean organic matter, total nitrogen and available P also had no significant difference. This results indicate that the forest recover its former pH, total nitrogen, mean organic matter and available P over time after a forest fire. North-facing slope had relatively higher soil water content thus implying that its pH values of soil lower than south-facing slope. On the other hand, south-facing slope had high organic matter and available P content of soil as compared to north-facing slope. With south facing slope having high water contents, humus was accumulated due to slow organic matter decomposition. The pH values also decreased due to organic acids from humus. However, we observed that organic matter and P concentration in soil increased.