Floristic study of Jang-do (Isl.) in Korea

Son, Hyun-Deok,Gwon, Soon-Gyo,Jang, Jeong-Won,Sun, Eun-Mi,Kim, Byeol-Ah,Im, Hyoung-Tak The National Institute of Biological Resources 2013 Journal of species research Vol.2 No.2

We investigated the flora of Jang-do (Isl.), an island of the Heuksan archipelago, located in Heuksan-myeon, Shinan-gun, Jeollanam-do and discussed the remarkable plants found there. Thirteen-field trips (total 27 days) were completed from May of 2004 to May of 2013. As a result, we identified the distribution of 423 taxa in Jang-do (Isl.), comprising 104 families, 285 genera, 335 species, 78 varieties and 10 forms. There are a total of 95 taxa of floristic regional indicator plants. The floristic regional indicators are as follows; four taxa of level V such as Impatiens furcillata, four taxa of level IV such as Hosta yingeri, 14 taxa of level III such as Ophioglossum vulgatum, 5 taxa of level II, and 58 taxa of level I. In addition 10 red data plants, 2 vulnerable species (VU) including Calanthe striata for. sieboldii, and 4 least concern species (LC) like Ardisia crenata, 2 not evaluated species (NE) such as Hosta yingeri, were found in the investigated area. An unrecorded species, Fragaria (Rosaceae), was found in a forest of Jang-do (Isl.) for the first time in Korea.

Streptozotocin 유발 당뇨병 쥐에서 Pinitol 투여가 혈당 조절 및 당뇨병성 신증 발생에 미치는 영향

손장원 외 중앙대학교 의과대학 의학연구소 2005 中央醫大誌 Vol.30 No.1

In the previous study, administration of pinitol (3-O-methyl-D-chiroinositol) has been shown to lower blood glucose concentration in streptozotocin-induced diabetic rat and to act insulin-like effect on glucose transport that is independent of insulin concentration. In this study, we investigated that effect of oral administration of pinitol on blood glucose concentration, oxidative stress and development of diabetic nephropathy in streptozotocin-induced diabetic rat. A total of 90 male Sprague-Dawley rats were randomly assigned to either the control groups (n=20) or the diabetic groups (n=70). The control groups were subdivided into untreated groups (C) (n=10) and pinitol-treated groups (C+P) (n=10). The diabetic groups were subdivided into untreated groups (STZ) (n=40) and pinitol-treated groups (STZ+P) (n=30). Body weight and blood glucose values of C, STZ and STZ+P groups were monitored at every weeks. 24 hours total proteinuria of C, STZ and STZ+P groups was measured at 9 weeks. Kidney was obtained by enucleation from C, STZ and STZ+P groups and was examined under the light microscope. Malondialdehyde (MDA) of four groups was measured at the end of the study. There was no significant difference in blood glucose concentration and MDA between STZ group and STZ+P group (p>0.05). There was no significant difference in 24 hours total proteinuria between each group (p>0.05). Under light microscopic examination, it is not revealed characteristics of the diabetic kidney on C group and STZ group. Additionally, morphological differences were not observed between STZ group and STZ+P group.

마라톤 동호인들의 참여정도와 여가 만족도의 관계

장진우,손원일 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.4

The purpose of this is to analyze the relationship between degree of involvement and leisure satisfaction in marathon club members. The subjects are composed of 295members of marathon clubs in Kwang Won·Kung Kee provinces. The result of this study is as follows. First, as a result of analyzing the leisure satisfaction among demographic characteristics in marathon clubs' members, physical satisfaction sub variable showed statistically significant difference according to sex, and the sub variable of educational·social·psychological satisfaction showed statistically significant difference according to the final education years, job, monthly income, Second, as a result of analyzing the leisure satisfaction among degree of involvement, all of sub variables showed statistically significant difference according to involvement period, running milage a week, and the sub variable of psychological · educational · social satisfaction showed statistically significant difference according to the entry frequency of marathon full course(42.l95㎞) competition a year.

청소년의 사회적 체격 불안과 정서 지능의 관계

장진우,손원일 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.4

The purpose of this study is to analyze relationships of social physique anxiety and emotion intelligence in adolescents, The subjects are composed of 390 members of male female middle school students in Dong Hae City. The result of this study is as follows. First, as a result of analyzing social physique anxiety and emotion intelligence according to sex, social physique anxiety showed statistically significant difference, whereas emotion intelligence did not show. Second, as a result of analyzing social physique anxiety and emotion intelligence showed statistically significant difference out of all of sub variables excluding emotion regulation variable. Third, the upper group at the level of social physique anxiety showed statistically significant difference out of emotion emotional facilitation of thinking and empathy among 5 sub variables of emotion intelligence compared with the lower group, whereas social physique anxiety between the upper group and lower group in intelligence did not show, Fifth, it was shown that social physique anxiety had statistically significant negative influences on appraisal and expression of emotion and emotional facilitation of thinking among emotion intelligence.

마라톤 참여동기가 운동몰입 및 여가만족에 미치는 영향

장진우,손원일 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

The purpose of this study was to analyze the effect of marathon participant motivation on exercise flow and leisure satisfaction. The subjects consisted of 295 members of marathon clubs in Kwang Won·Kung Kee provinces using stratified cluster random sampling. The survey questionnaire were used to data. The questionnaire for marathon participation motivation was Master-Ogles Marathon Scale(MOMS) developed by Master et al.(1990) and modified, simplified in Korean language by this researcher. The questionnaire for exercise flow was Expansion of the sports commitment model(ESCM) developed by Scanlan et al.(1993) and standardized in Korean language by Jung(1997). The questionnaire for leisure satisfaction was Leisure Satisfaction Scale(LSS) developed by Bearb and Ragheb(1980) and standardized in Korean language by LEE(1992). The statistical method utilized in this study for analyzing the collected data was multi regression analysis. The verified results through this study are summarized as follows. Firstly, The marathon participation motivation in marathon club runners gave generally significant influence on exercise flow. Secondly, The marathon participation motivation in marathon club runners gave generally significant influence on leisure satisfaction.

Trimethylpyrazine이 조골세포 분화에 미치는 영향

손효은 ․ 장원구 대구대학교 산업기술연구소 2018 産業技術硏究 Vol.29 No.2

Trimethylpyrazine (TrMP) is known to be derived from cocoa and nuts. In present study, we examined the effects of TrMP on osteoblast differentiation. The mRNA expression of osteogenic genes in MC3T3-E1 cells were determined by RT-PCR. TrMP induced the expression of osteogenic genes such as, inhibitor of differentiation-1 (Id1), distalless related homeobox (Dlx5), runt related transcription factor 2(Runx2), alkaline phosphatase( ALP), osteocalcin (OC). Alizarin red s staining was performed to measure calcium deposition. TrMP increased calcium deposition in MC3T3-E1 cells. These results suggest that TrMP was induces osteoblast differentiation in MC3T3-E1.

하계 실내 및 실외환경의 공기 중 휘발성 유기화합물 농도 및 개인노출

양원호,손부순,박종안,장봉기,박완모,김윤신,어수미,윤중섭,류인철 한국환경과학회 2003 한국환경과학회지 Vol.12 No.9

Volatile organic compounds (VOCs) are present in essentially all natural and synthetic materials from petrol to flowers. In this study, indoor and outdoor VOCs concentrations of houses, offices and internet-cafes were measured and compared simultaneously with personal exposures of each 50 participants in Asan and Seoul, respectively. Also, factors that influence personal VOCs exposure were statistically analyzed using questionnaires in relation to house characteristics, time activities, and health effects. All VOCs concentrations were measured by OVM passive samplers (3M) and analyzed with GC/MS. Target pollutants among VOCs were Toluene, o-Xylene, m/p-Xylene, Ethylbenzene, MIBK, n-Octane, Styrene, Trichloroethylene, and 1,2-Dichlorobenzene. Indoor and outdoor VOCs concentrations measured in Seoul were significantly higher than those in Asan except Ethylbenzene. Residential indoor/outdoor (I/O) ratios for all target compounds ranged from 0.94 to 1.51 and I/O ratios of Asan were a little higher than those of Seoul. Relationship between personal VOCs exposure, and indoor and outdoor VOCs concentrations suggested that time-activity pattern could affect the high exposure to air pollutant. Factors that influence indoor VOCs level and personal exposure with regard to house characteristics in houses were building age, inside smoking and house type. In addition insecticide and cosmetics interestingly affected the VOCs personal exposure. Higher exposure to VOCs might be caused to be exciting increase and memory reduction, considering the relationship between measured VOCs concentrations and questionnaire (p<0.05).

비목별 분포 분석을 통한 공사비 투입 곡선 예측 모델

서장원,손보식,이현수 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2

Recently, feasibility study in Korean construction industry becomes important with the increasing development projects. Especially, economical efficiency study of feasibility study is an important step that decides feasibility, and accurate cash flow analysis is needed in this step. However, in Korean construction industry, research about this field is poor. In most construction company, they use total cost by informal calculation and cost distribution method using standard normal distribution, but this method has a low accuracy. In this study, we found weaknesses of existing methodology through literature review and case-study of 23 projects that carried by a large construction company of korea during recent 7 years. Also, we propose a forecasting model of cost flow curve using triangular distribution and investment curve classified by items of expenditure.

Effects of Setaria italica on Gap Junction-Mediated Intercellular Communication for the Development of Intercellular Communication for the Development of Cancer Chemopreventive Agents

Jang Won Son,Ming Zhu Fang,Myung Haing Cho,Kyung Ho Kim,Soo Un Kim,Gil Hwan An,Chong Soon Lee,Kinam Kim,IlMoo Chang,Woongchon Mar 한국생약학회 1999 Natural Product Sciences Vol.5 No.2

Inhibition of gap junction-mediated intercellular communication (GJIC) has been considered as an important factor in the tumor promotion phase of carcinogenesis. Recovery effects of natural products on gap functional intercellular communication are measured by scrape-loading and dye transfer method using Lucifer yellow after administration of phorbol-12-myristate-13-acetate (PMA) on WB F344 cells. Among tested natural products, the hexane fraction and subfractions (F-01 and F-04) of Setaria italica were relatively effective for recovery of GJIC. The hexane fraction of Setaria italica (EC_(25), 12.14 ㎍/㎖) and subfractions (F-01: EC_(50), 10.74 ㎍/㎖; EC_(25), 1.58 ㎍/㎖, F-04: EC_(50), 11.03 ㎍/㎖; EC_(25), 3.12 ㎍/㎖) revealed dose-dependent recovery effects on GJIC. Our data show GJIC activity measurement by Lucifer yellow spread on cells can be an effective tool for the screening of natural products with possible cancer chemopreventive effects.

Influence of Changes in Pretest-probability for Chronic Coronary Syndromes on Diagnostic Performance of Dobutamine Stress Echocardiography

Jang-Won Son 한국심초음파학회 2021 Journal of Cardiovascular Imaging (J Cardiovasc Im Vol.29 No.2

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