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禹榮均,崔錫源,卞相國 공주대학교 사범대학 과학교육연구소 1992 과학교육연구 Vol.23 No.1
Most of the fluorite ore deposits in Kumsan district occur in the Chinsan area. Specifically, these are the Okgye, Hyongyang, Ilyang, Manak fluorite ore deposits. Field survey and fluid inclusion study were undertaken to illustrate the characters and origin of the fluorite ore deposits in Chinsan area. The results of this study are as follows; Gology of the Chinsan area is composed of Majonri Formation and Changri Fomation which belong to Okchon Group and Jurassic biotite granite and Cretaceous pink feldspar granite and quartz porphyry. The wall rock of fluorite ore deposits in Chinsan area are chiefly limestone in Majonri Formation and partly limestone in Changri Formation. The relevent igneous rocks of the fluorite ore deposits are chiefly quartz porphyry, but some are biotite granite or pinkfeldspar granite. The fluorite ore deposits in this area are chiefly contact metasomatic deposits which were formed while limestones were intruded by quartz porphyry, biotite granite and pink feldspar granite. The filling degrees of fluid inclusions in fluorite ranges 84∼95% in Okgye, 85∼95% in Hyongyang, 85∼91% in Ilyang, 92∼96% in Manak ore deposits. The salinity (NaCl equivalent weight percent) ranges 0.1∼1.5wt.% in Hyongyang. 0.3∼2.8wt.% in Ilyang. 0∼1.5wt.% in Manak ore deposits. The homogenization temperature of fluorite ore deposits in Chinsan area ranges 97.6∼191.6C in Okgye, 99∼168.4C in Hyongyang. 100∼214C in Ilyang, 122∼248.6C in Okgye, 99∼168.4C in Hyongyang, 100∼214C in Ilyang, 122∼248.6C in Manak ore deposits. These data indicate that Chinsan Fluorite ore deposits belong to the epithemal or mesothemal deposits same as the other fluorite ore deposits in Korea.
쌍각자궁의 일측 자궁가 (horn)에 발생한 자궁내막암
변상국 ( Sang Kug Byun ),이혁우 ( Hyuk Woo Lee ),조용호 ( Yong Ho Jo ),최화영 ( Hwa Yung Choi ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.1
The occurrence of carcinoma in a congenital uterine anomaly is uncommon. Indeed, malignancy of the uterine fundus with congenital uterine anomaly is quite rare, with fewer than 50 cases reported in the world liturature. Many patients go through life witho
이혁우 ( Hyuk Woo Lee ),변상국 ( Sang Kug Byun ),박재철 ( Jae Chul Park ),조용호 ( Yong Ho Jo ),정의식 ( Eui SIk Jung ) 대한산부인과학회 2002 Obstetrics & Gynecology Science Vol.45 No.11
Primary ovarian pregnacy is a rare form of ectopic pregnacy of which an estimated overall incidence is highly variable, but improved diagnosis of acute hemoperitoneum of ovarian may reveal a higher incidence than reported earlier. Ovarian pregnancy is uau
주성홍(Sung Hong Joo),변상국(Sang Kug Byun),최화영(Hwa Young Choe),조용호(Yong Ho Jo),정의식(Eui Sik Jung),조성진(Sung Jin Cho) 대한산부인과학회 2002 Obstetrics & Gynecology Science Vol.45 No.7
Heterotopic pregnancy, simultaneous intrauterine and extrauterine pregnancy, is an extremely rare case. The incidence of heterotopic pregnancy was about 1 to 30,000 pregnancy, but it has been increased. Ectopic pregnancy is associated with significant mortality if not promptly diagnosed. Careful pelvic examination combined serial β-hCG determinations and transvaginal sonography to evaluation the adnexal region are necessary prerequisites for early diagnosis. We report a case of discovery of heterotopic pregnancy after elective abortion with brief review of literature.
여정언 ( Jung Eun Yeo ),변상국 ( Sang Kug Byun ),최화영 ( Hwa Young Choe ),박재철 ( Jae Cheol Park ),신재원 ( Jae Won Shin ),정의식 ( Eui Sik Jung ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.1
Of all forms of ectopic gestation, the possibility of fertility catastrophe is highest with a cervical pregnancy. Though rare, it is a potentially life-threatening condition. In the past it was diagnosed late, after there was profuse hemorrhage from the c
랫드에서 cyclophosphamide로 유발된 기형에 대한 홍삼추출물의 효과
이예은(Yea Eun Lee),변상국(Sang Kuk Byun),신선희(Sunhee Shin),장자영(Ja Young Jang),최병일(Byong-il Choi),박동선(Dongsun Park),전정희(Jeong Hee Jeon),임숙희(Sook Hee Lim),황석연(Seock-Yeon Hwang),김윤배(Yun-Bae Kim) 한국실험동물학회 2005 Laboratory Animal Research Vol.21 No.3
Effects of repeated treatment with red ginseng extract on the teratogenicity of cyclophosphamide were investigated in rats. Pregnant rats were orally treated with red ginseng extract (100 or 500 ㎎/㎏) for 7 days, from days 6 to 12 of gestation, and intraperitoneally challenged with cyclophosphamide (12 ㎎/㎏) 1 hr after the final treatment. On day 20 of gestation, the maternal and fetal abnormalities were examined. Cyclophosphamide, administered on day 12 of gestation, reduced fetal and placental weights to 70 - 80% and 50% of control, respectively, and induced 80% of malformations in live fetuses. The malformations include cranial defect and exencephaly (80.0%), micrognathia and tongue extrusion (20.9%), edema and hematoma (29.1%), ventricular dilatation (16.7%), vertebral defects (78.6%), costal defects (44.6%), and delayed skeletal ossification (80.4%). Interestingly, red ginseng extract further decreased the fetal weights and remarkably aggravated fetal defects in a dose-dependent manner, resulting in 96.7% of cranial defect and exencephaly, 64.8% of micrognathia and tongue extrusion, 49.5% of limb defects, 90.7% of vertebral defects, 88.4% of costal defects, and 83.7% of delayed skeletal ossification in rats administered with 500 ㎎/㎏ of red ginseng extract followed by cyclophosphamide. These results demonstrate that a long-term pretreatment with red ginseng extract substantially enhance body weight loss and malformations of fetuses induced by intrauterine exposure to cyclophosphamide.