체위변화에 의한 SaO_2의 변화

최세진,한규철,정규돈 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

To investigate the SaO_2 changes according to positional change in general anesthetic patients, 80 ASA physical state class I-II patients were studied. Each group classified supine position group, group to change from supine position into sitting position, group to change from supine position into prone position and group to change supine position into lateral position. After intubation, in the supine position SaO₂was checked and then positional changes performed. After that we checked Sa0_2 in 1, 5, 10, 15, 30, 60 minutes respectively. The results were as follows. 1) In supine position, time-dependent SaO_2 change was not significant statistically(p>0.05). 2) In the change into sitting position, time-dependent SaO_2 change was not significant statistically(p>0.05). 3) In the change into prone position, time-dependent SaO_2 change was not significant statistically(p>0.05). 4) In lateral positional change, time-dependent SaO_2 change was not significant statistically(p>0. 05). 5) Among the groups there were no significant SaO_2 changes according to positional change compared with supine position statistically. In conclusion, this experiments revealed that the change in SaO_2 according to positional change was not significant.

문학,문화 : 디지털 시대 도시의 생태학적 전망

이경래 ( Kyung Lae Lee ),박규현 ( Kyou Hyun Park ),조연정 ( Yeon Jung Cho ) 경희대학교 비교문화연구소 2012 비교문화연구 Vol.26 No.-

City`s Ecological Landscape in the Digital Age Lee Kyung-Lae, Park Kyou-Hyun, Cho Yeon-Jung We all know how beautiful our wild and it`s importance to our living planet Earth. But did you realise the speed at which man himself is damaging it`s unique natural habitat. We are well on our way to destroy our forests, plants, wetlands. We are polluting our oceans and seas. This way, we`re driving numerous animal species, plant species and many others into extinction. Everyone should be aware of the importance of our natural environment. We live in the period of echocide. Why we need nature to survive and how we can deal with the environmental problems we face. This paper has the purpose to reform city`s environment. Because, Metropolis and megalopolis are the principal cause of environmental disruption. To reform the city is needed to consider digital technology in our age. In the face of economic and cultural globalization, many have argued that we live an increasingly placeless world. However, as a growing number of cities participate and compete in key marketplaces of advanced capitalism, the spectacle of the city is more than ever a significant medium of communication in its own right. In doing so, this work is focused specifically on the dimension of city`s media environment. To that end, the paper examined U-City and U-Eco city. In this study, we will introduce the study on model of U-Eco City as one way for the eco-freindly future city.

소퇴부 심재성 2도 화상 치험 1례

이규영, 유준상 상지대학교 한의학연구소 2022 尙志韓醫論文集 Vol.10 No.1

Objectives: The aim of this study is to report the effect of Korean medical treatment on a deep second-degree burn in the shin area Methods: We treated the female patient suffering from burn injury by Korean medical treatment such as acupuncture, Hwangryunhaedoktang extract, wet dressing of Coptidis Rhizoma distillate, Jawoongo dressing from December 9th 2022 to December 24th 2022. The efficacy of treatment was evaluated by wound area and NRS(Numeral Rating Scale) of pain. Results: After Korean medical treatment, reduction of pain and wound area, burn tissue recovery were observed in a short period of time, and there were no other complications such as infection. Conclusions: This case report showed that the Korean medical treatment is effective in the treatment of deep second-degree burn. More clinical cases will be required in the future.

마늘 파종기 개발을 위한 재배 측면의 기초 연구

이규승,박원엽 성균관대학교 생명공학연구소 2000 生命工學硏究 Vol.6 No.1

This study was carried out to investigate the labour requirements and cultivation method of garlic production as a basic reference to develop a garlic planter. Fifty households were surveyed for five major garlic production area, or Danyang, Seosan, Eusung, Namhae and Muan. Cultivation field was mainly upland for Danyang, Seosan, and Muan, and lowland for Eusung and Namhae. The slope of fifty five percent of cultivation field was less than 2% and that of 39% of cultivation field ranged from 2 to 30%. For the most of major garlic production area, the width of ridge ranged from 150 to 180 cm except for the Eusung area where ridge ranged from 360 to 400 cm. Furrow width ranged from 30 to 40 cm for the most of the cultivation field. Planting distance was 15∼20 cm and planting width was 5∼10 cm for the most of the cultivation field. Planting depth was 2∼4 cm for Korean local cultivar and 3∼6 cm for Chinese cultivar. For the most of the cultivation area, garlic clove was planted in upright position by ones. For the most of the cultivation area except Muan, plastic film without hole was mulched after planting. Plastic film with 14∼16 hole in a line was used for mulching in muan area.

서울시내 국민학교 아동의 호기속도-용량곡선

정규철,이정희 중앙대학교 의과대학 의과학연구소 1988 中央醫大誌 Vol.13 No.2

Maximal expiratory flow rates: PEFR, PEF25%, FEF50%, FEF75%, FEF25-75% were measured on 378 primary school children aged from 5 to 12 years in Seoul (183 males and 195 females) using Collins Survery Spirometer with Eagle One Microprocessor (Warren E. Collins, Inc,, U.S.A.). Mean values of PEFR and FEF25-75% were 4.66±0.99 and 2.61±0.59 1/sec for males and 3.98±1.00 and 2.54±0.64 1/sec for females showing at FEF25-75% amounted to approximately 60% of PEFR. Mean values of FEF25%, FEF50%, and FEF75% were gradually decreased in order in both sexes. Variability of the maximal expiratory flow rates was quite big in all measurements: indicating 20% in males and 25% in females for PEFR, FEF50% and FEF25-75%, and about 30% in both sexes for FEF75%. Maximal expiratory flow rates were closely correlated with age and physical growth, especially stature. Simple regression equations of maximal expiratory flow rates on stature and multiple regression equations on age and physical growth were derived for both sexes. These equations were proved to be valid in predicting maximal expiratory flow rates of primary school children.

학동기에서 청년초기까지의 노력성 폐활량 및 1초량의 예측

정규철,안철민,홍연표 중앙대학교 의과대학 의과학연구소 1991 中央醫大誌 Vol.16 No.3

Forced vital capacity(FVC) and forced expiratory volume in one second(FEV_1) were measured in 473 males and 413 females aged 8 to 21 years old who were healthy, non-smoking and attending school in Seoul with Collins Survey Spirometer(Warren E. Collins, Inc., U.S.A.). The results were as follows; 1. Prediction equations for FVC and FEV_1 were best expressed in a form of linear regression as a function of height, respectively, for a group of children aged 8 to 12 years, whereas as a function of age, height and weight for those older than 13 years both in males and females. 2. Mean difference between the measured and predicted values in each age group ranged 86 ml(1.1%)∼-54 ml(2.4%) for FVC and 167 ml(3.1%)∼-110 ml(3.2%) for FEV_1 in males and 86 ml(4.3%)∼-97 ml(4.6%) for FVC and 91 ml(1.7%)∼-125 ml(5.9%) for FEV_1 in females. 3. Mean one second rate (FEV_1%) were found to be 91.3±5.0 % aged 8 to 21 years in males and 93.5±4.8 % aged 8 to 19 years in females. There was a highly significant difference in FEV_1% aged 8 to 19 years between male and female (p<0.001).

80세 이상 노인 환자에서 시행한 슬관절 전치환술

김규현,고덕환,임신우,김동헌 건국대학교 의과학연구소 2002 건국의과학학술지 Vol.12 No.-

Purpose : The purpose of this study is whether total knee arthroplasty would be an effective procedure in the group over than eighty year-old patients. Materials and Methods : Between 1990 and 2001, 54 cases of the patients who are older than 80 year-old(group A) and 456 cases of the patients who are less than 80 year-old(group B) were treated by total knee arthroplasties and we evaluated the patients by Knee Score of American Knee Society and daily activity. Results : Pain was markedly improved in group A, and 30 of the patients(79%) participate the recreational activities, 32 patients(84%) could shop gloceries after surgery, and only 5 patients(13%) living in the house are neccessary for their family members. The mean knee score was 92 points and 91 points, pain score was 43 points in group A and 39 points in group B, and function score was 61 points in group A and 68 point in group B. Conclusion : Total knee arthroplasty still is a valuable procedure even for this elderly group, and most of these patients returned to a more functional lifestyle.

우리나라 어른 남자의 피, 오줌 및 머리칼에 함유된 수은량의 추정

정규철,주덕원 중앙대학교 의과대학 의과학연구소 1981 中央醫大誌 Vol.6 No.4

For a purpose of searching a rational means of estimating an amount of mercury absorption in normal metabolic process, and to obtain data concerning normal concentrations of mercury in blood, urine and hair of the male adults living in Seoul, Korea, 58 male volunteers aged from 20 to 30 years of age who had no obvious exposure to mercury for occupational and/or therapeutic purposes were selected, and mercury concentrations in blood, urine and hair specimens collected from them were analyzed by dithizone calorimetric method. 1. Frequency distribution of mercury concentrations in urine and hair specimens were well fitted to the log-normal distribution with the equivalent sample means and standard deviations, and that of mercury in blood was fitted to both the normal and the log-normal distributions. 2. Mean mercury concentration in the 24-hour urine specimens was ln^-1 2.48 ㎍/ℓ±ln^-1 0.67㎍/ℓ (x￣_g±s_g=11.95㎍/ℓ;X_max-X_min=23.3㎍/ℓ∼6.12㎍/ℓ). 3. Frequency distribution of mercury concentrations in the 24-hour urine specimens was better fitted to the log-normal distribution when the value was adjusted by specific gravity of urine 1.024 or per gram of creatinine excretion per liter of urine. Mean value of mercury excretion in the 24-hour urine specimens was ln^-1 2.88㎍/ℓ×((0.024/S.G.-1.000)±ln^-1 0.60㎍/ℓ) × ((0.024/S.G.-1.000)(x￣_g±s_g=1. 81㎍/ℓ))×((0.024/S.G.-1.000)±1.65㎍/ℓ)×(0.024/S.G.-1.000);X_max∼X_min=(29.9㎍/ℓ×(0.024/S.G.-1.000)-11.0㎍/ℓ×(0.024/S.G.-1.000)), and ln^-1 2.89㎍/g · creatinine/ℓ±ln^-1 0.62㎍/g·creatinine/ℓ (x￣_g±s_g=18.0㎍/g)·creatinine/ℓ±1.86㎍/g · creatinine/ℓ;X_max∼X_min=33.5㎍/g·creatinine/ℓ∼9.7㎍/g·creatinine/ℓ),respectively. 4. Frequency distribution of mercury concentrations in hourly-voided urine specimens was fitted to the log-normal distribution as well, showing the mean of ln^-1 3.07㎍/g·creatinine/ℓ±ln^-1 0.77㎍/g·creatinine/ℓ(x￣_g±s_g=21.5㎍/g·creatinine/ℓ±2.16㎍/g·creatinine/ℓ);X_max∼X_min=46.4㎍/g·creatinine/ℓ∼10.0㎍/g·creatinine/ℓ) with greater dispersion of mercury excretion than in the 24-hour urine specimens. 5. Mercury excretion in the hourly-voided urine specimens showed a diurnal varition (p<0.01), as minimal as ln^-1 2.72㎍/g·creatinine/ℓ±ln^-1 0.76㎍/g·creatinine/ℓ(x￣_g±s_g=15.2㎍/g·creatinine/ℓ±2.14㎍/g·creatinine/ℓ);X_max∼X_min=32.5㎍/g·creatinine/ℓ±7.10㎍/g·creatinine/ℓ) in urinevoided at 6 o'clock in the morning and as maximal as ln^-1 3.34㎍/g·creatinine/ℓ+ln^-1 0.58㎍/g·creatinine/ℓ (x￣_g±s_g=26.6㎍/g·creatinine/ℓ±2.10㎍/g·creatinine/ℓ);X_max∼X_min=55.9㎍/g·creatinine/ℓ∼12.7㎍/g·creatinine/ℓ) in urine viided at 1 o'clock in the afternoon. 6. Frequency distribution of mercury concentrations in blood was fitted to both the normal and the log-normal distributions with the arithmetic mean of x￣±s=30.2㎍/100ml±14.96㎍/100ml and the geometric mean of ln^-1 3.23㎍/100ml±ln^-1 0.57㎍/100ml(x￣_g±s_g=25.3㎍/100ml±1.77㎍/100ml;X_max∼X_min=44.8㎍/100ml∼14.29㎍/100ml). 7. Frequency distribution of mercury concentrations in hair was log-normally distributed with the mean of ln^-1 0.45㎍/㎍/g±ln^-1 0.56㎍/g(x￣_g±s_g=1.57㎍/g;X_max∼X_min=2.75㎍/g∼0.90㎍/g) 8. Frequency distribution of mercury concentrations in urine, when expressed in terms of ㎍ per liter, was well fitted to the logarithmic, exponential and power curves with that in hair (㎍/g). No relationship, however, was found between mercury in urine and in blood (㎍/100ml), and between mercury in blood and in hair.

農業機械의 走行性에 관한 硏究(Ⅰ)

李揆昇 成均館大學校 1982 論文集 Vol.32 No.-

Poor tractor mobility under wetland conditions has often hampered the mechanization of paddy cultivation in the Asian Countries. Thus agricultural engineers are becoming aware of the need for fundamental knowledge of the interrelatrions between agricultural machinery and soils to apply to the solution of the trafficability problem in paddy field. Also prediction of the trafficability in paddy field is needed for selection and utilization of proper farm machinery, and modification and development of new farm machinery. It is considered to be possible to predict the trafficability in paddy field, using the cone penetrometer. But the method which is used for prediction of the trafficability in the soft soil by the Waterways Experiment Station, using the cone penetrometer should be modified for farm machinery which is used in the paddy field. Also plate sinkage in the paddy field can be correlated with the sinkage of the traction device of the tractor and drawbar pull for prediction of trafficability. But more extensive experiments are needed for various soil conditions for more general use.

급성 카드뮴중독의 치사량과 혈액 및 간 조직에 미치는 영향

정규철,박정덕,조병희 중앙대학교 의과대학 의과학연구소 1988 中央醫大誌 Vol.13 No.1

Cadmium toxicity on lethality and hepatotoxicity in relation to dosage was investigated with Sprague-Dawley rates after single dose of 0.1~0.3% cadmium chloride solutions into peritoneal cavity of each rats. The rates were divided into 7 groups and amount of dose ranged from 1 to 32 mgCd/kg body weight. Lethal dose (LD_50) was calculated by probit method, and found to be 5.71mgCd/kg body weight. In contrast to an average concentration of cadmium in blood for control group was 0.028±0.095 ㎍Cd/ℓ, the blood concentration for a group to which 1 mgCd/kg body weight was given increased to 15.0±3.9 ㎍Cd/ℓ, and fitting the blood concentrations to power function curve on dosage. Cadmium concentrations in hepatic tissue had also the same relationship as blood cadmium concentrations and, in turn, between blood and hepatic concentrations with regression coefficient of 0.707. Minimal toxic dose (TDLo) based on histopathological findings during the course of observation after the dose was revealed to be 2.0 mgCd/kg body weight and the effective dose (ED_50) for inducing inflammatory cell infiltration (L_1 group) and for induction of pyknosis, hyperchromaticity or partial necrosis of hepatic cells (L_2 group) were identical with a value of 3.29 mgCd/kg body weight.