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[PB-0046] Overexpression of IbMYB1a gene induced anthocyanin accumulation in soybean seeds
Si Hyeon Kim(Si Hyeon Kim),Wan Woo Yeom(Wan Woo Yeom),Hye Jeong Kim(Hye Jeong Kim),Hae Gyun Park(Hae Gyun Park),Hye Min Park(Hye Min Park),Cha Young Kim(Cha Young Kim),Young-Soo Chung(Young-Soo Chung) 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-
극저준위 방사성폐기물을 위한 효율적인 γ-선 및 β-선 측정방법 개발
곽성우,염유선,김호경,조규성,박주완,김창락,송명재 대한방사선 방어학회 2001 방사선방어학회지 Vol.26 No.4
매년 병원에서 사용 후 폐기되는 비가연성 폐기물은 r -선과 β-선을 방출하지만 방사능은 주변방사능 수준으로 매우 낮다. 이를 측정하기 위한 기존의 방법은 비효율적이고 복잡하므로, 좀 더 간단한 방법이 긴요하다. 본 논문에서는 측정 방사선의 특성상 핵종에 따라 다른 측정방법을 사용하였는데, r-선 방출 핵종은 표준시료로부터 효율곡선식을 도출하여 미지의 방사능을 측정하였다. β-선 방출 핵종은 Monte Carlo 시뮬레이션을 통해 계측 효율을 예측하고 표면장벽형계측기로 측정하여 미지의 방사능 양을 결정하는 새로운 방법을 제시하였다. 연구결과에 의하면 이론적 계산치와 표면장벽형계측기를 이용하면 전처리를 필요로하는 액체섬광계수기를 이용하지 않고 또한 계측효율을 결정하기 위한 비경제적인 표준시료 측정시험과정 없이도 저에너지 방사선을 약 17% 오차 범위내에서 결정할 수 있다고 판단된다. The non-combustible RI wastes disposed of in hospital every year emit r -ray or β -ray but their activities are very low to the extent of background. Development of more simple methods is needed because the conventional detection methods are so ineffective and complex. In this study, to solve this problem, detection method using efficiency curve for r -ray emitting radioactive wastes measurement is proposed and experimental detection efficiency equation is also determined through HPGe's standard specimen measurement. For β-emitting radioisotopes detection, new measurement method using detection efficiency estimated by Monte Carlo simulation and SBD measurements is also proposed. According to the results of this paper, the unknown activity of low-level radioactive wastes without LSC requiring the preparation of standard sample and measurement for standard source detection efficiency could be determined efficiently and simply about ±17% in errors by using the theoretical detection efficiency and the SBD measurement result.
외상 환자에 대한 바늘감압술에서 흉벽 두께와 바늘 길이의 관계
김지완 ( Jee Wan Kim ),정진우 ( Jin Woo Jeong ),조석주 ( Suck Ju Cho ),염석란 ( Seok Ran Yeom ),한상균 ( Sang Kyoon Han ),박성욱 ( Sung Wook Park ) 대한외상학회 2010 大韓外傷學會誌 Vol.23 No.2
Purpose: A tension pneumothorax is a fatal condition that requires immediate intervention. Although a definitive treatment for a tension pneumothorax is a tube thoracostomy, needle decompression can provide temporary relief, that is lifesaving. The traditional procedure for needle decompression involves inserting a needle or catheter at the second intercostal space, the midclavicular line. Recent evidence suggests that the commonly used catheters do not have sufficiently penetrate the chest wall. There are also claims that a lateral approach to needle decompression is easier and safer than the traditional anterior approach. The purpose of this study is to evaluate the optimal approach for needle decompression for the Korean population by measuring chest wall thicknesses at the points used for both the anterior and the lateral approaches. Methods: The chest wall thickness (CWT) of trauma victims who visited the Emergency Center of Pusan National University Hospital was measured by computed tomography (CT) images. The CWT was measured at the points used for the anterior and the lateral methods and was compared with the length of commonly used catheters, which is 45 mm. Results: The mean CWT at the second intercostal space, the midclavicular line, was shorter than the CWT at the 5th intercostal space, the anterior axillary line. However, the percentage of patients whose CWT was greater than 45 mm was larger when measured anteriorly (8.2%) that when measure laterally (5.7%). Female patients and those older than 60 were more likely to have an anterior CWT greater than 45 mm (28.2% for females and 15.5% for those older than 60). Conclusion: The percentage of trauma victims in Korea whose CWT is greater than 45 mm is lower than the values previously reported by other countries. However, females and older patients tend to have thicker chest walls, so the lateral approach would be suggested when performing needle decompression for such patients with suspected tension pneumothoraces. (J Korean Soc Traumatol 2010;23:63-67)
자궁경부이형증 및 자궁경부암환자에서 NK cell 분포에 관한 면역조직화학적 연구
이규완,염범우,김해중,구병삼 대한부인종양 콜포스코피학회 1993 Journal of Gynecologic Oncology Vol.4 No.1
Natural Killer (NK) cells are a subpopulation of in vivo activated lymphocytes that display spontaneous cytotoxicity against a variety of targets as virus-infeeted, and transformed neoplastic cells, in major histocompatibility-unrestricted fashion. Depression of the NK aetivity in patients with advanced stages of various types of solid neopls,sms appears to be dependent upon the prcgressive growth and metastatic spread of the tumor. There are many reports that different distribution of subpopulations of lymphocytes in neopiastic tissue may influence the prognosis of the patients. In this study, we have performed immunohistochemieal study with Leu-7, MT1, LN2, and antilysozyrne antiserum on the tissue of uterine cervieal dysplasia and cancer to investigate the distribution of the NK cell, T cell, B cell, and macrophage. The results were as follows ; 1. The major subpopulation of lymphocytes infiltrating the lesion of intraepithelial neoplasia and squamous cell carcinama was T cell. 2. The number of infiltrated. lymphocytes was layer in the lesion of keratinzing type than in that of non keratinizing and small cell earcinorna of the uterine cervix. 3. NK cell was more frequently noted in the malignant lesion than the dysplastic lesion.
김성완(Seong Wan Kim),염진섭(Jin S. Yeom),권윤주(Yoon Ju Kwon),유승민(Seung Min You),안영희(Young Hee An),박건우(Kun-Woo Park),장봉순(Bong-Soon Chang),이춘기(Choon-Ki Lee) 대한정형외과학회 2008 대한정형외과학회지 Vol.43 No.5
목적: 제 1-2 경추간 경관절 나사와 제 2 경추 관절하 분절 나사 삽입 시 척추동맥 손상의 위험성을 CT를 이용한 나사 삽입 시뮬레이션으로 비교하고자 하였다. 대상 및 방법: 총 166명의 환자의 1 ㎜ 간격 CT 영상과 나사 삽입 시뮬레이션 소프트웨어를 이용하여 상기 두 나사의 삽입을 컴퓨터 시뮬레이션 하여, 나사에 의한 제 2 경추 척추동맥구 침범의 발생율을 비교하였다. 이 중 상위 척추동맥에서의 척추동맥구 침범의 발생률을 다시 비교하였다. 결과: 전체 166명에 두 가지 나사를 각각 삽입한 결과, 제 1-2 경추간 경관절 나사는 9.9% (33/332), 제 2 경추 관절하 분절 나사는 5.7% (19/332)의 척추동맥구 침범을 일으켜, 통계적으로 유의한 차이를 보였다(p=0.001, McNemar test). 상위 척추동맥 48개만을 분리하여 분석해 본 결과, 제 1-2 경추간 경관절 나사는 62.5% (30/48), 제 2 경추 관절하 분절 나사는 37.5% (18/48)의 척추동맥구 침범을 일으켜, 통계적으로 유의한 차이를 보였다(p=0.002, McNemar test). 결론: 제 2 경추 관절하 분절 나사는 제 1-2 경추간 경관절 나사보다 척추동맥 손상의 위험성이 낮았으며, 상위 척추동맥의 경우에도 척추동맥 손상의 위험성이 낮았다. Purpose: We compared the risk of vertebral artery injury associated with the insertion of C1-2 transarticular screws and C2 subarticular segmental screws using a computer simulation of computed tomography (CT) scans. Materials and Methods: We simulated the placement of C1-2 transarticular screws and C2 subarticular segmental screws using 1-mm interval CT scan images in 166 patients, along with simulation software. We then determined the incidence of violation of the C2 vertebral artery groove. The same determination was performed for high-riding vertebral arteries found among those patients. Results: Among the 332 C2 vertebral artery grooves (166 patients), C1-2 transarticular screws violated the groove in 33 (9.9%) instances, while C2 subarticular segmental screws violated the groove in 19 (5.7%) instances. The difference in incidence between the two screw types was statistically significant (p=0.001, McNemar test). In the 48 high-riding vertebral arteries, C1-2 transarticular screws led to violation of the C2 vertebral artery groove in 30 (62.5%) instances, while C2 subarticular segmental screws led to violation of the groove in 18 (37.5%) instances. The difference in incidence between the two screw types was statistically significant (p=0.002, McNemar test). Conclusion: Use of C2 subarticular segmental screws is associated with a lower risk of vertebral artery injury than is the use of C1-2 transarticular screws, even for high-riding vertebral arteries.