용접공들의 면역능에 관한 연구

이수일,조봉수,김영욱,고광욱,조원근,김영실,강수용,황인경,조병만,김돈균 大韓産業醫學會 1997 대한직업환경의학회지 Vol.9 No.1

The authors examined human immunity indicators such as CD4, CD8, Natural Killer(NK) cell, IgG, IgA, and IgM, and heavy metals such as Pb, Cr, Cd to evaluate the health hazard of welders. We selected total 126 male subjects, 60 welders who had more than 5 year working history as an exposure group, and 66 office workers and medical college students as a control group. This immunity evaluation approach is the first newly designed study that has never been tried in past studies on welder's heath evaluation. And the results were as follows. 1. Total lymphocyte count of peripheral blood was significantly higher in welder group, 2,615±650 ea/㎕ compared with 2,368±681 ea/㎕ in control group(p>0.05). 2. The proportion of CD4, CD8, NK cell in welder group was 37.5±9.4%, 24.0±8.8%, and 21.0±9.5%, respectively, and 35.5±6.5%, 25.0±6.9%, and 19.6±8.8% in control group. CD4 and NK cell were slightly higher, and CD8 was slightly lower in welder group. but there was no statistical significance between two groups(p≥0.05). 3. IgG, IgA, and IgM in welder group were 15.9㎎/㎗, 2.7㎎/㎗ and 1.5㎎/㎗, respectively, and 15.6㎎/㎗, 2.9㎎/㎗ and 1.7㎎/㎗ in control group. There was no statistical significance between two groups(p≥0.05). 4. Blood lead, cadmium and chromium concentrations were 4.2±1.8㎍/㎗, 0.4±0.38㎍/㎗, 1.2±0.6㎍/㎗ in welder group and 3.2±1.7㎍/㎗, 0.44±0.29㎍/㎗, 1.1±0.6㎍/㎗ in control group, respectively, and these value were within normal ranges.

일부 농촌지역 주민의 모발중 금속 농도 분포

고현송,심운택,조영채 충남대학교 의과대학 지역사회의학연구소 1991 충남의대잡지 Vol.18 No.2

In order to know the concentration of some metals in human hairs from residents living in rural area, the 88 hair samples were taken from Kunbuk-Myon residents during the period from August through October, 1990. The 4 elements(Pb, Cd, Mn, and Zn) in human hair were determined by atomic absorption spectrophotomer with flame and grapite furnace atomizer systems using wet ashing procedure. The results were as follows: 1. The mean concentrations of metals in human hair of the total 88 samples were: Pb was 3.14±1.63㎍/g, Cd was 0.81±0.71㎍/g, Mn was 4.02±3.86㎍/g, Zn was 199.11± 80.33㎍/g, and in the males: Pb was 3.51±1.54㎍/g, Cd was 0.84±0.63㎍/g, Mn was 3.95±4.78㎍/g, Zn was 215.88±76.76㎍/g, and in the females: Pb was 3.34±1.69㎍/g, Cd was 0.79±0.77㎍/g, Mn was 4.08±2.95㎍/g, Zn was 186.36±82.90㎍/g 2. There were no significant differences among 4 elements (Pb, Cd, Mn, Zn) by Age groups, by exposed to pesticides and by exposed years to pesticides. 3. In males, there were negative correlation between age and Cd level(r=-0.2860, P<0.05), between Cd and Zn(r=-0.3760, P<0.01), and significant positive correlations between Pb and Zn(r=0.2881, P<0.05). In females, there was significant positive correlations between Pb and Zn(r=0.3096, P<0.01).3 4. There were positive correlations between Pb and Cd(r=0.1835, P<0.05) and between Zn and Pb(r=0.3049, P<0.01), but there was negative correlation between Mn and Cd(r=-0.1817, P<0.05).

낙동강 본류 하변 식생의 식물사회학적 연구

고재기,조영호 慶山大學校 基礎科學硏究所 2002 基礎科學 Vol.6 No.2

This study was undertaken to classify and describe the riverside vegetation around the mainstream of Nak-tong River, Korea by phytosociological method of the Z-M school. The field survey were carried out in 73 plots from March, 1995 to October, 1996. The vegetation data obtained were classified by the tablework. As a result, the following vegetation units were recognized: A. Phragmites japonica community B. Phragmites japonica - Salix gracilistyla community C. Phragmites japonica - Phragmites communis community C-a. Typical subcommunity C-b. Ligustrum obtusifolium subcommunity D. Salix gracilistyla - Phragmites communis community D-a. Typical subcommunity D-b. Capsella brusa-pastoris subcommunity D-c. Scirpus fluviatilis subcommunity E. Rumex japonica community F. Carex pumila community G. Agropyron tsukushiense var. transiens community Also the relationship of the vegetation units with their environments such as riverbed height, topography, soil class etc. was discussed here.

순·구개열 환자와 정상 소아의 두개안면 형태에 관한 비교 연구

고광준,김영주,조수범 大韓口腔顎顔面 放射線學會 1995 Imaging Science in Dentistry Vol.25 No.2

The purpose of this study was to determine whether any difference existed in craniofacial morphology between cleft children and normal subjects. Thirty three measurements of the various regions of cranium and face were obtained from lateral cephalometric radiograms in 40 cleft children(27 males, 13 females) and 40 normal subjects(23 males, 17 females) in our dental hospital from Jan. 1988 to Dec. 1995. The measurements were compared with those in control subjects who had no history of craniofacial abnormalities. The obtained results were as follows: 1. In the cranium, the cleft children had significantly shorter posterior cranial base length(S-Ba) and total anterior-posterior cranial base length(N-Ba) (P<0.05). 2. In the upper face, the cleft children had significantly shorter upper anterior facial height(N-ANS) and upper posterior facial height(Ptm'-SNL)(P<0.05). 3. In the lower face, the cleft children had significantly shorter anterior-posterior mandibular length(Pog-Ar) and anterior-posterior mandibular body length(Pog-Go)(P<0.05)> 4. In the facial profile, the cleft children had significantly shorter total facial height(N-Me) and posterior facial height(S-Go)(P<0.05).

처분장근처에서 침식에 의한 Sr 화학종의 평형

조윤정,김성현,이인화,김시욱,고문주,박성규,이범규 조선대학교 환경공해연구소 2000 環境公害硏究 Vol.16 No.1

Leaching and adsorption equilibria of Sr Chemical Species from the near field of a repository has been studied in solidified cement with Fe and oxidized Fe. The absorption percent, Ads %, and distribution coefficient, K_(d) were calculated using equilibrium concentration to predict the extent of leaching and adsorption. In the mixed aqueous solutions the Ads % increase as Cement(C)/Water(W) ratios increase and K_(d) was decreased for Sr. These behaviors were discussed by adsorption and equilibrium of spiked ions. Oxides Fe promoted the adsorption of spiked ions, but pure Fe had no effect. E_(h) values were also estimated and discussed to elucidate oxidation-reduction environment of experimental system.

낙동강 본류 하변의 식물상에 관한 연구

고재기,조영호 대구한의대학교 기초과학연구소 2003 基礎科學 Vol.7 No.2

본 조사에서 기록된 관속식물은 69 科 174 屬 227 種 40 變種 2 品種으로 총 269 種이 조사되었다. 생활형의 구성은 남한지역 전체와 비교할 때, 지상식물, 지중식물 및 지표식물의 비율이 낮았고, 반지중식물, 1년생식물 및 수생식물의 비율이 현저히 높게 나타났다. 본 조사 지역에서 얻어진 귀화식물은 전체 출현종의 8.55%로써 23종 이 출현하였다. 낙동강 본류의 수생식물은 총 16과 20속 31종 4변종을 총 35종류가 조사되었으며 정수성이 14종(40.0%)으로 가장 많았으며 침수성 11종(31.4%), 부엽성 7종(20.0%), 부유성 3종(8.6%)의 순으로 나타났다. 수생식물의 분포는 대구상류에 16 종, 대구 하류에 26종으로 하류로 갈수록 많이 출현하고 있으며, 침수식물인 검정말 (Hydrilla verticillata)이 우점종으로 관찰되었다. This study was undertaken to describe the riverside flora in 73 plots around the mainstream of Nak-tong River, Korea from March, 1995 to October, 1996. The field survey were carried out through the process of direct collection on actual vegetation and drying, fixation and identification of each specimen. The vascular plants around the mainstream of Nak-tong River were consisted of 269taxa; 69 families, 174 genera, 227 species, 40 varieties, 2 forms. Compared with Raunkiaer's lifeform spectrum, the percent of phanerophyte, geophyte and epiphyte were lower and hemicryptophyte, hydrophyte and therophyte were higher remarkably in spectrum of this riverside flora than spectrum of South Korea. The Korean endemic plants are 5 taxa and naturalized plants are 23 taxa. The percent of species number of naturalized plants around the mainstream of Nak-tong River per total species number of naturalized plants in South Korea is 12.8%. The hydrophytes around the mainstream of Nak-tong River were consisted of 35taxa; 16 families, 20 genera, 31 species, 4 varieties and the composition of hydrophytes by life cycle were 10 emergent hydrophytes, 5 floating-leaved hydrophytes, 13 submerged hydrophytes, 3 free-floating hydrophytes and dominant species in hydrophytes was Hydrilla verticillata And the subsidiary knowledge from this study will provide practical information on the study for biodiversity and habitat conservation.

안면부 Lymphangioma에 의한 Orbital Dystopia의 치험

고영초,정철현,방난석,하지운 大韓成形外科學會 1991 Archives of Plastic Surgery Vol.18 No.4

Vertical orbital dystopia is an abnormally low or high position of one orbit in comparison with the other side which is supposedly normal. The causes of vertical orbital dystopia include Congenital(craniosynostosis, hemifacial microsomia and facial clefting syndrome etc.), Trauma(orbital fracture and irradiation injury etc.), Neoplasms(fibrous dysplasia, antrum carcinoma, intracranial tumors, frontal and ethmoid sinus tumor and angiomatoses etc.) From the stand point of both visual function and asthetic aspects, the correction of vertical orbital dystopia is more difficult for the surgeon than in the case of equally great horizontal displacment. Uncorrected vertical orbital dystopia produce significant facial asymmetry and severe deformity than similar amount of horizontal deformity. The case of a 22 year - old female patient with vertical orbital dystopia associated with large cavernous lymphangioma on right forehead and supraorbital region is presented. The patient had aesthetically good result by correction of vertical orbital dystopia through intracranial approach in spite of impossible complete resection of cavernous lymphangioma.

顎矯正術을 받은 顎顔面 寄形患者의 SKELETAL PATTERN의 變化에 關한 硏究

조원표,조병욱,고백진,이용찬 大韓顎顔面成形再建外科學會 1990 Maxillofacial Plastic Reconstructive Surgery Vol.12 No.3

In the treatment of dentofacial deformities, analysis of skeletal pattern, with evaluation of plaster dental case, is essential procedure. This study was based on 20 patients with dentofacial deformity who were admitted to the department of oral and maxillofacial surgery Kngnam sacred heart Hospital during the period of Jan 1989. We studied serial cephalometric radiogarphs of patients (pre-op, postop immediately, postop 6 moth). The obtained results indicates the good resistance of rigid fixation against relapse in orthognathic surgery.

공황장애 환자군의 기질 및 성격 특성에 관한 연구

고상현,임기영,조선미,정영기 大韓神經精神醫學會 2004 신경정신의학 Vol.43 No.6

Objectives : There were many studies assessed the relationship between Cloninger's Temperament and Character Inventory (TCI) and mood and anxiety disorders. This study investigated biogenedc temperament and character trait in panic disorder and assessed the correlation between the sevehty ofpanic disorder and TCI score. Methods : The subjects were 31 patients who met DSM-IV criteria for panic disorder and 40 controls. All subjects completed Temperament and Character Inventory. The patients completed self-report version of panic disorder severity scale, extended anxiety sensitivity index, Albany Panic and phobia Questionnaire, Agoraphobic Cognition Questionnaire, Body Sensations Questionnaire, Beck Anxiety Inventory, and Beck Depression Inventory. Results : The panic disorder patients showed significantly high harm avoidance, reward dependence, and cooperativeness and low novelty seeking compared with healthy controls. The high harm avoidance had significant effects on the severity ofpanic symptoms. Conclusion : We suggest that high harm avoidance, reward dependence, and cooperativeness and low novelty seeking are biogenetic temperament and character pattem of panic disorder patients.

유전치의 polyethylene fiber-post를 이용한 심미수복에 관한 증례 보고

서영주,조태식,김효석,고승백,정현구,이난영 조선대학교 구강생물학연구소 2002 口腔生物學硏究 Vol.26 No.2

In clinical practice, restoration of primary incisors severely affected by caries continues to be a challenge. Not only are these teeth difficult to restore. but the behavior of the patient can affect treatment negatively. An acceptable restoration for maxillary anterior incisors should have matching material color, durability, adhesive cementation that is biocompatible with the pulp, easily and rapidly placed. This Paper describes two cases showing an alternative technique for the construction of completely destroyed upper incisors with polyethylene ribbons for retention and stability for the resin crowns.