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낙동강 하천 및 호소 퇴적물에서의 PAHS, OCPS, Co-PCBs 농도 분포와 발생원 펑가
강희형(Hee Hyung Kang),이인석(In Seok Lee),허인애(In Ae Huh),신원식(Won Sik Shin),황인성(In Sung Hwang),김영훈(Young Hoon Kim),허진(Jin Hur),신현상(Hyun Sang Shin),김준하(Joon Ha Kim),오정은(Jeong Eun Oh) 大韓環境工學會 2010 대한환경공학회지 Vol.32 No.7
본 연구에서는 낙동강 수계 내 하천 및 호소의 퇴적물을 대상으로 16종의 다환방향족탄화수소(PAHs), 다염화바이페닐(PCBs), 유기염소계 농약(OCPs)류를 분석하였다. 하천 퇴적물에 존재하는 16종의 PAHs와 12종의 Co-PCBs 농도 수준은 각각 N.D.~969.3ng/g-dry, 4.2~7716.5pg/g-dry(0.0~10.1 pg-TEQ/g-dry)이었다. 호소 퇴적물에 존재하는 16종의 PAHs류는 5.8∼2987.2ng/g-dry, 12종의 co-PCBs는 4.3~461.1 Pg/g-dry(0.0~0.6 pg-TEQ/g-dry), OCPs의 농도 수준은 N.D.~1.5ng/g-dry이었으며, OCPs 중 DDT류만 검출되었다. 이는 환경질 평가를 위한 가이드 라인보다 훨씬 낮은 수준이었다. 낙동강 수계 내 하천 퇴적물에 존재하는 16종의 PAHs 중 저분자 PAHs의 비율이 높은 반면, 호소에서는 중·고분자 PAHs의 비율이 높았다. 그리고 PCBs는 모든 퇴적물 시료에서 PCB-118과 PCB-105의 비율이 가장 높게 나타났으며, 이는 이전의 연구와도 일치하는 결과이다. 검출 된 PAHs와 Co-PCBs의 배출원 추정 결과,PAHs의 경우 일부 지점들을 제외한 대부분의 지점들이 석탄 및 바이오패스의 연소 와 관련 있었으며, Co-PCBs의 경우 상업적인 PCBs와 관련이 있음을 알 수 있었다. We investigated the levels and distribution patterns of 16 priority polycyclic aromatic hydrocarbons (PAHs), 12 Coplanar polychlorinated biphenyls (Co-PCBs) and organochlorine pesticides (OCPs) in the surface sediments from the Nakdong river basin, Korea. The levels of 16 PAHs and 12 Co-PCBs in the river sediment samples ranged from not detected (N.D.)~969.3ng/g-dry, 4.2~7716.5pg/g-dry (0.0~10.1pg-TEQ/g-dry), respectively. Also, the levels of 16 PAHs were from 5.8~2987.2ng/g-dry and 4.3~461.1pg/g-dry (0.0~0.6 pg-TEQ/g-dry) for 12 Co-PCBs in the lake sediment samples. Only dichloro-diphenyl-trichloroethane (DDT) were detected among target OCPs and the concentration ranged from N.D.~1.5ng/g-dry in the river sediment samples. These contamination levels were far below the guideline values suggested for environmental quality assessment. Low molecular weight PAHs were dominant in the river sediment samples, while middle and high molecular weight PAHs were dominant among 16 PAHs in the lake sediment samples. PCB-118 and PCB-105 were predominant congeners in the sediment, which were similar to the results obtained from previous studies. With these results, the assessment of potential sources of PAHs and Co-PCBs contamination in the sediments of the Nakdong river basin was performed. The pyrogenic-PAHs originated from combustion of fossil fuel and biomass were related with the PAHs contribution in most of the sediment samples, and Co-PCBs in the sediment samples were related with commercial PCB products.
강희정 ( Hee-jung Kang ),임춘화 ( Chun-hwa Ihm ),이문희 ( Moon-hee Lee ),현성희 ( Sung-hee Hyun ),김인식 ( In-sik Kim ) 대한임상검사과학회 2010 대한임상검사과학회지(KJCLS) Vol.42 No.2
Antibody screening and identification tests before blood transfusion are important because unexpected red antibodies can cause acute or delayed hemolytic transfusion reactions. Although a tube method was used for detecting unexpected antibodies, a column agglutination method has recently been used because of its simple procedure and a high detection of warm antibodies. This study investigated the frequency and distribution of unexpected antibodies in transfusion candidates during the recent 5 years, and transfusion characteristics in the identified cases. From January 2005 to December 2009, 46,923 sera of the cases from E hospital were screened and 98 sera were identified by the DiaMed-ID System. 272 cases (0.58%) showed positive results out of all 46,923 cases that underwent unexpected antibodies screening. Among them, unexpected antibodies were identified in 98 cases. The anti-Rh antibodies included in warm antibodies were the most frequently detected in 47 cases (47.96%). Anti-Lewis and anti-MNSs antibodies were detected in 11 cases (11.22%) and 6 cases (6.12%), respectively. Unidentified antibodies were detected in 6 cases (6.12%). Among the patients with unexpected antibodies, 43 cases (43.88%) had a history of previous transfusion. Anti-E was the most frequently detected antibody (4/14 cases, 30.77%) in the cases who had a previous history of transfusion and showed different screening results from negative to positive, This study may provide the basic data for the frequency and characteristics of red cell antibodies.
고등학생의 자아탄력성과 학교생활적응의 관계에서 스트레스 대처전략의 매개효과
강희항(Hee-Hang KANG),황인옥(In-Ok HWANG) 한국상담심리교육복지학회 2021 상담심리교육복지 Vol.8 No.4
본 연구는 고등학생의 자아탄력성과 학교생활적응의 관계에서 스트레스 대처전략의 매개효과를 살펴보고자 하였으며, 경상남도 K시에 거주하는 고등학생 374명을 대상으로 설문을 실시하였다. 수집된 자료는 SPSS 24.0 프로그램으로 분석하였다. 본 연구의 결과에 의하면, 첫째, 자아탄력성 전체는 물론 자아탄력성의 하위요인인 통제성, 긍정성, 사회성은 학교생활적응과 유의한 상관이 있는 것으로 나타났다. 둘째, 스트레스 대처전략 전체, 스트레스 대처전략의 하위요인 중 과업중심, 정서중심은 학교생활적응과 유의한 상관이 있는 것으로 나타났다. 셋째, 스트레스 대처전략의 하위요인 중 과업중심 대처전략과 정서중심 대처전략은 자아탄력성과 학교생활적응의 관계에서 부분매개 하는 것으로 나타났다. 이에 본 연구결과에 대한 시사점과 의의를 논의하였다. The purpose of this study is to examine the mediating effects of stress coping strategy in the relationship between ego resilience and school life adaptation of high school students. The subjects of this study were 374 high school students in City K, Gyeongsangnam-do. Data were analyzed using SPSS 24.0 program. The results are as follows: First, ego resilience as a whole, controllability, positivity, and sociality were found to have a significant correlation with school life adaptation. Second, stress coping strategy as a whole, task-oriented and emotion-focused coping strategy were found to have a significant correlation with school life adaptation. Third, task-oriented coping strategy and emotion-focused coping strategy were found to partially mediate the relationship between ego resilience and school life adaptation. Therefore, the implications and significance of the results of this study were discussed.
공액리놀렌산 섭취와 복합운동이 중년여성의 신체구성과 혈청 생화학성분에 미치는 효과
강희순(Kang Hee-Soon),박수연(Park Soo-Yeon),차정훈(Cha Jung-Hoon),염동철(Yeom Dong-Chul),안길영(Ahn Kil-Young),김범수(Kim Bum-Soo),조준용(Cho Joon-Yong),조인호(Cho In-Ho) 한국체육과학회 2010 한국체육과학회지 Vol.19 No.2
The purpose of present study was to investigate the effect of interaction of conjugated linoleic acid(CLA) and/or combined exercise on blood lipid profiles(total cholesterol, HDL, LDL, TG), C reactive protein, body composition in obese middle aged women. We recruited twenty women(BMI ≥25) and divided into three groups CON(n=6) group, CLA(n=7) group, COMBI (CLA and exercise training, n=7) group. CLA was taken 2g/day and endurance and resistance training was performed 60min/day, 3days/week for 6weeks. According to blood lipid profiles, CLA group have a significant decrease of total cholesterol and increase of HDL level(p<.05). Furthermore, COMBI group led to significant reduction of body weight and BMI. These results show that CLA and/or exercise training has ability of improving blood lipid profiles and body composition, which can reduce the risk of obesity and metabolic syndrome in obese middle aged women.
강희석,금동권,이한수,전인,최용호,이창우,Kang Hee Suk,Keum Dong-kwon,Lee Hansoo,In Jun,Choi Yong Ho,Lee Chang Woo 한국방사성폐기물학회 2005 방사성폐기물학회지 Vol.3 No.4
This paper describes a compartment dynamic model for evaluating the contamination level of kritium in agricultural plants exposed by accidentally released tritium. The present model uses a time-dependent growth equation of plant so that it can predict the effect of growth stage of plant during the exposure time. The model including atmosphere, soil and plant compartments is described by a set of nonlinear ordinary differential equations, and is able to predict time-dependent concentrations of tritium in the compartments. To validate the model, a series of exposure experiments of HTO vapor on Chinese cabbage and radish was carried out at the different growth stage of each plant. At the end of exposure, the tissue free water(TFWT) and the organically bound tritium(OBT) were measured. The measured concentrations were agreed well with model predictions.
강희인,이원학,오해수,김동석,김상중,Kang, Hee-In,Lee, Won-Hak,Oh, Hae-Soo,Kim, Dong-Suk,Kim, Sang-Joong 대한악안면성형재건외과학회 2005 Maxillofacial Plastic Reconstructive Surgery Vol.27 No.6
Keratoacanthoma is a benign, self-limited epithelial lesion that closely resembles Squamous cell carcinoma(SCC). Keratoacanthoma occur primarily exposed skin in male patients over 45 years of ages. although etiology is unknown, sunlight, genetic, and human papillomavirus factor have been considered. in clinical feature, rapid enlargement occurs over 4$\sim$8 weeks, resulting ultimately in a hemispheric, firm, elevated, asymptomatic nodule that contains a central plug of keratin. When fully developed, the keratoacanthoma contains a core of keratin surrounded by a concentric collar of raised skin. Over the next 4$\sim$8 weeks, static lesion persists. Then undergoes spontaneous regression over the next 6$\sim$8weeks period by expulsion of the keratin core with resorption of the mass. In histologic feature, Keratoacanthoma consists of hyperplastic squamous epithelium growing into the underlying connective tissue. The surface is covered by a thickened layer of parakeratin with central plugging. Epithelium cell shows dysplastic features and the margins the normal adjacent epithelium is elevated. The differential diagnosis includes SCC. Keratoacanthoma present as a exophytic lesion with horny keratin occupying a depression on the top of the lesion, persists static period and undergoes rapid growth compared with SCC. Keratoacanthoma is usually treated by surgical excision or curettage of the base, spontaneous regression does not occur in every case. A 60 years old male who present facial lesion visit our hospital and surgical excision was done. Biopsy result was keratoacanthoma. We report case with review of literatures.
매복된 하악 제 3대구치 발거시 항생제 및 진통제 투여의 효용성
길용갑,강희인,김경수,김재성,곽명호,서현수,홍순민,박준우,Kil, Yong-Kab,Kang, Hee-In,Kim, Kyoung-Soo,Kim, Jae-Seong,Kwak, Myung-Ho,Seo, Hyun-Soo,Hong, Soon-Min,Park, Jun-Woo 대한악안면성형재건외과학회 2009 Maxillofacial Plastic Reconstructive Surgery Vol.31 No.6
Purpose: To evaluate the properties of antibiotic and NSAIDs administration before extract of the impacted mandibular third molar. Materials & Methods: No patient showed any sign of pain, inflammation, or swelling at the time of removal. A group of 50 patients was classified in Group 1(preemptive and oral medication was carried out for 3 days postoperatively, N=23) and Group 2(oral medication was carried out for 3 days postoperatively, N=27) subgroups. Clinical and radiologic factors were recorded for each case, and the rationale for assigning the patients to the groups was strictly random. The surgical technique was the same in all cases, and the follow-up period was 1 week. Parameters that were evaluated were infection, swelling, pain and differences in mouth opening. Results: We could not find any significant difference between the 2 groups regarding the evaluated parameters. Conclusion: The results of our study show that antibiotic and NSAIDs administration before the removal of lower third molars does not contribute to a decrease infection, swelling, pain or increase mouth opening. Therefore antibiotic and NSAIDs administration before the removal of lower third molars is not recommended for routine use.
김경수,강희인,길용갑,김재성,이영,서현수,홍순민,박준우,Kim, Kyoung-Soo,Kang, Hee-In,Kil, Yong-Kab,Kim, Jae-Seong,Lee, Young,Seo, Hyun-Soo,Hong, Soon-Min,Park, Jun-Woo 대한악안면성형재건외과학회 2009 Maxillofacial Plastic Reconstructive Surgery Vol.31 No.6
The population were increased by industrialization and urbanization of the modern society and social activities of the person were rapid increased too. Subsequently the number of motor vehicle accident, sports accident and industrial accident were increased, resulting in the number of oral and maxillofacial trauma were increased. Because of the mandible relatively protruded among the facial bone, the most frequent associated oral and maxillofacial injuries was mandible fracture in the trauma center setting. A clinical study on 411 patients with mandibular fracture who visited in Department of Oral and Maxillofacial Surgery, Chun-chon Sacred Heart Hospital during 10 years(1997-2006) was done by analysing sex, age, mode, fracture site and treatment method