• Structural Engineering and Mechanics
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• 제82권4호
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• pp.445-458
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• 2022

Some of the control systems used in engineering structures that use sensors and decision systems have some time delay reducing efficiency of the control system or even might make it unstable. In this research, in addition to considering the effect of the time delay in vibration control process, predictive control is used to compensate the time delay. A semi-active vibration control approach with the help of magneto-rheological dampers is implemented. In addition to using fuzzy inference system to determine the appropriate control voltage for MR damper, structural behavior prediction system and specifying future responses are also used such that the time delays occurring within control process are overcome. For this purpose, determination of prediction horizon is conducted for one, five, and ten steps ahead for single degree of freedom structures with periods ranging from 0.1 to 4 seconds, subjected to twenty earthquake excitations. The amount of time delay applied to the control system is 0.1 seconds. The obtained results indicate that for 0.1 second time delay, average prediction error values compared to the case without time delay is 3.47 percent. Having 0.1 second time delay in a semi-active control system reduces its efficiency by 11.46 percent; while after providing the control system with structure behavior prediction, the difference in the results for the control system without time delay is just 1.35 percent on average; indicating a 10.11 percent performance improvement for the control system.

• Journal of the Korean Wood Science and Technology
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• 제2권4호
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• pp.4-14
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• 1974

The total forest land area in Korea accounts for some 67 percent of the nation's land total. Its productivity, however, is very low. Consequently, forest production accounts for only about 2 percent of the gross national product and a minor proportion of no more than about 5 percent versus primary industry. In this case, however, only the direct income from forestry is taken into account, making no reference to the forestry output induced by other industrial sectors. The value added Or the induced forestry output in manufacturing the primary wood products into higher quality products, makes a larger contribution to the economy than direct contribution. So, this author has tried to analyze the structure of forestry and compute the repercussion effect and the induced output of primary forest products when utilized by other industries for their raw materials, Hsing the input-output table and attached tables for 1963 and 1966 issued by the Bank of Korea. 1. Analysis of forestry structure A. Changes in total output Durng the nine-year period, 1961-1969, the real gross national product in Korea increased 2.1 times, while that of primary industries went up about 1. 4 times. Forestry which was valued at 9,380 million won in 1961, was picked up about 2. 1 times to 20, 120 million won in 1969. The rate of the forestry income in the GNP, accordingly, was no more than 1.5 percent both in 1961 and 1962, whereas its rate in primary industries increased 3.5 to 5.4 percent. Such increase in forestry income is attributable to increased forest production and rise in timber prices. The rate of forestry income, nonetheless, was on the decrease on a gradual basis. B. Changes in input coefficient The input coefficient which indicates the inputs of the forest products into other sectors were up in general in 1966 over 1963. It is noted that the input coefficient indicating the amount of forest products supplied to such industries closely related with forestry as lumber and plywood, and wood products and furniture, showed a downward trend for the period 1963-1966. On the other hand, the forest input into other sectors was generally on the increase. Meanwhile, the input coefficient representing the yolume of the forest products supplied to the forestry sector itself showed an upward tendency, which meant more and more decrease in input from other sectors. Generally speaking, in direct proportion to the higher input coefficient in any industrial sector, the reinput coefficient which denotes the use of its products by the same sector becomes higher and higher. C. Changes in ratio of intermediate input The intermediate input ratio showing the dependency on raw materials went up to 15.43 percent m 1966 from 11. 37 percent in 1963. The dependency of forestry on raw materials was no more than 15.43 percent, accounting for a high 83.57 percent of value added. If the intermediate input ratio increases in any given sector, the input coefficient which represents the fe-use of its products by the same sector becomes large. D. Changes in the ratio of intermediate demand The ratio of the intermediate demand represents the characteristics of the intermediary production in each industry, the intermediate demand ratio in forestry which accunted for 69.7 percent in 1963 went up to 75.2 percent in 1966. In other words, forestry is a remarkable industry in that there is characteristics of the intermediary production. E. Changes in import coefficient The import coefficient which denotes the relation between the production activities and imports, recorded at 4.4 percent in 1963, decreased to 2.4 percent in 1966. The ratio of import to total output is not so high. F. Changes in market composition of imported goods One of the major imported goods in the forestry sector is lumber. The import value increased by 60 percent to 667 million won in 1966 from 407 million won in 1963. The sales of imported forest products to two major outlets-lumber and plywood, and wood products and furniture-increased to 343 million won and 31 million won in 1966 from 240million won and 30 million won in 1963 respectively. On the other hand, imported goods valued at 66 million won were sold to the paper products sector in 1963; however, no supply to this sector was recorded in 1963. Besides these major markets, primary industries such as the fishery, coal and agriculture sectors purchase materials from forestry. 2. Analysis of repercussion effect on production The repercussion effect of final demand in any given sector upon the expansion of the production of other sectors was analyzed, using the inverse matrix coefficient tables attached to the the I.O. Table. A. Changes in intra-sector transaction value of inverse matrix coefficient. The intra-sector transaction value of an inverse matrix coefficient represents the extent of an induced increase in the production of self-support products of the same sector, when it is generated directly and indirectly by one unit of final demand in any given sector. The intra-sector transaction value of the forestry sector rose from 1.04 in 1963 to 1, 11 in 1966. It may well be said, therefore, that forestry induces much more self-supporting products in the production of one unit of final demand for forest products. B. Changes in column total of inverse matrix coefficient It should be noted that the column total indicates the degree of effect of the output of the corresponding and related sectors generated by one unit of final demand in each sector. No changes in the column total of the forestry sector were recorded between the 1963 and 1966 figures, both being the same 1. 19. C. Changes in difference between column total and intra-sector transaction amount. The difference between the column total and intra-sector transaction amount by sector reveals the extent of effect of output of related industrial sector induced indirectly by one unit of final demand in corresponding sector. This change in forestry dropped remarkable to 0.08 in 1966 from 0.15 in 1963. Accordingly, the effect of inducement of indirect output of other forestry-related sectors has decreased; this is a really natural phenomenon, as compared with an increasing input coefficient generated by the re-use of forest products by the forestry sector. 3. Induced output of forestry A. Forest products, wood in particular, are supplied to other industries as their raw materials, increasng their value added. In this connection the primary dependency rate on forestry for 1963 and 1966 was compared, i. e., an increase or decrease in each sector, from 7.71 percent in 1963 to 11.91 percent in 1966 in agriculture, 10.32 to 6.11 in fishery, 16.24 to 19.90 in mining, 0.76 to 0.70 in the manufacturing sector and 2.79 to 4.77 percent in the construction sector. Generally speaking, on the average the dependency on forestry during the period 1963-1966 increased from 5.92 percent to 8.03 percent. Accordingly, it may easily be known that the primary forestry output induced by primary and secondary industries increased from 16, 109 million won in 1963 to 48, 842 million won in 1966. B. The forest products are supplied to other industries as their raw materials. The products are processed further into higher quality products. thus indirectly increasing the value of the forest products. The ratio of the increased value added or the secondary dependency on forestry for 1963 and 1966 showed an increase or decrease, from 5.98 percent to 7.87 percent in agriculture, 9.06 to 5.74 in fishery, 13.56 to 15.81 in mining, 0.68 to 0.61 in the manufacturing sector and 2.71 to 4.54 in the construction sector. The average ratio in this connection increased from 4.69 percent to 5.60 percent. In the meantime, the secondary forestry output induced by primary and secondary industries rose from 12,779 million Wall in 1963 to 34,084 million won in 1966. C. The dependency of tertiary industries on forestry showed very minor ratios of 0.46 percent and 0.04 percent in 1963 and 1966 respectively. The forestry output induced by tertiary industry also decreased from 685 million won to 123 million won during the same period. D. Generally speaking, the ratio of dependency on forestry increased from 17.68 percent in 1963 to 24.28 percent in 1966 in primary industries, from 4.69 percent to 5.70 percent in secondary industries, while, as mentioned above, the ratio in the case of tertiary industry decreased from 0.46 to 0.04 percent during the period 1963-66. The mining industry reveals the heaviest rate of dependency on forestry with 29.80 percent in 1963 and 35.71 percent in 1966. As it result, the direct forestry income, valued at 8,172 million won in 1963, shot up to 22,724 million won in 1966. Its composition ratio lo the national income rose from 1.9 percent in 1963 to 2.3 per cent in 1966. If the induced outcome is taken into account, the total forestry production which was estimated at 37,744 million won in 1963 picked up to 105,773 million won in 1966, about 4.5 times its direct income. It is further noted that the ratio of the gross forestry product to the gross national product. rose significantly from 8.8 percent in 1963 to 10.7 percent in 1966. E. In computing the above mentioned ratio not taken into consideration were such intangible, indirect effects as the drought and flood prevention, check of soil run-off, watershed and land conservation, improvement of the people's recreational and emotional living, and maintenance and increase in the national health and sanitation. F. In conclusion, I would like to emphasize that the forestry sector exercices an important effect upon the national economy and that the effect of induced forestry output is greater than its direct income.

• 대한간호학회지
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• 제4권2호
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• pp.93-106
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• 1974

The purposes of this study are to identify the necessity of utilization of electric thermometer, to determine the difference of clinical thermometers to reach maximum or optimum temperature, and to determine the length of time necessary for temperature taking, with Fahrenheit thermometer, electric thermometer, Yu Ⅱ centigrade thermometer, and Kuk ll centigrade thermometer. The first and second comparative Experiments were' conducted from August 25 through September 30, 1973. In the first experiment, Fahrenheit thermometer, which had been accurately teated two times, and electric thermometer have been utilized. These two kinds of thermometers were inserted simultaneously under the central area of the tongue and the mouth kept closed while thermometers were in place. All temperature readings were done at one minute interval until leaching-maximum temperature. These procedures were repeated one hundred times and the data were-analyzed statistically by means of the t-test. In the second experiment, Fahrenheit thermometer, which had been accurately tested two. times, Yu Ⅱ centigrade thermometer, and Kuk Ⅱ centigrade thermometer have been utilized. These three kinds of thermometers were inserted simultaneously under the central area of the. tongue and the mouth kept closed while thermometer were in place. All temperature readings were done at one minute interval until reaching maximum temperature. These procedures were. repeated one hundred times and the data were analyzed statistically by means of the F-ratio Under the eight hypotheses designed for this study, the findings obtained are as follows: 1. There were no significant differences in the maximum temperature between Fahrenheit thermometer and electric thermometer. The mean maximum temperature for Fahrenheit thermometers was 37.06℃ and for electric thermometer was 37.09℃. 2. The placement time to reach maximum temperature taken by Fahrenheit thermometer was significantly shorter than that by electric thermometer. The mean placement time for Fahrenheit thermometers was 4.04 minutes, for electric thermometer was 5.52 minutes. In the case of Fahrenheit thermometers, 45 to 77 percent after 3 to 5 minutes, over 90 Percent after 7 minutes, and 100 percent after 10 minutes, had reached optimum temperature. When the electric thermometer was used, 23 to 54 percent after 3 to 5 minutes, over 90 percent after 9 minutes, and 100 percent after 12 minutes, had reached optimum temperature. 5. There ware no significant differences in the maximum temperature among Fahrenheit thermometer, Yu Ⅱ centigrade thermometer, and Kuk Ⅱ centigrade thermometer. The mean maximum temperature for Fahrenheit thermometers was 36.67℃, for Yu Ⅱ centigrade thermometer, was 33.73℃, and for Kuk Ⅱ centigrade thermometers was 37.76℃. 6. There were no significant differences in placement time to reach maximum temperature among Fahrenheit thermometer, Yu Ⅱ centigrade Thermometer, and Kuk Ⅱ centigrade thermometer. The mean placement time (or Fahrenheit thermometers was 7.77 minutes, for Yu Ⅱ centigrade thermometers was 7.25 minutes, and Kuk Ⅱ centigrade thermometers was 7.25 minutes. In the case of Fahrenheit thermometers, 8 to 24 percent after 3 to 5 minutes, over 90 percent after 11 minutes, and 100 percent after 13 minutes, had reached maximum temperature. When the Yu Ⅱ centigrade thermometer was used, 10 to 27 percent after 3 to 5 minutes, over 90 percent after 11 minutes, an8 103 percent after 13 minutes, had reached maximum temperature. When the Kuk Ⅱ centigrade thermometer was used, 11 to 27 Percent after 3 to 5 minutes, over 90 percent after 11 minutes, and 100 percent after 12 minutes, had reached maximum temperature. 7. There were no significant differences in the optimum temperature(the maximum temperature minus 0.1℃) among fahrenheit thermometer, Yu Ⅱcentigrade thermometer, and Kuk Ⅱ centigrade thermometer. The mean optimum temperature for Fahrenheit thermometers was 36.60℃, for Yu Ⅱ centigrade thermometers was 36.69℃, and Kuk Ⅱ centigrade thermometers was 36.69℃. 8. There were no significant differences in placement time to reach optimum temperature among Fahrenheit thermometer, Yu Ⅱ centigrade thermometer, and Kuk Ⅱ centigrade thermometer The mean placement time for Fahrenheit thermometers was 5.70 minutes, for Yu Ⅱ centigrade thermometers was 5.54 minutes, and for Kuk Ⅱ centigrade thermometers was 5.28 minutes. In the case of Fahrenheit thermometers, 21 to 49 percent after 3 to 5 minutes, over 90 percent after 9 minutes, and 100 percent after 12 minutes, had reached optimum temperature. When the Yu Ⅱ centigrade thermometer was used, 23 to 51 percent after 3 to 5 minutes over 90 percent after 10 minutes, and 100 percent after 12 minutes, had reached optimum temperature. When the Kuk Ⅱ centigrade Thermometer was used, 23 to 57 Percent after 3 to 5 minutes, over 90 percent after 9 minutes, and 100 Precent after 11 minutes, had reached optimum temperature.

• 성인간호학회지
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• 제12권3호
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• pp.396-406
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• 2000

The purpose of the study was to investigate Body Mass Index (BMI), the perception of weight problem and the level of self-esteem and depression in high school and college females. The convenience sample consisted of 303 high school females and 481 college females. Data were collected between November 1999 and December 1999. Subjects ranged in age from 15 years and 26 years. BMI was calculated based on the subject's self-reported body weight and height. Self-perception of having a weight problem was evaluated by a single item question. The Rosenberg's Self-Esteem Scale and the Center for Epidemiologic Studies Depression Scale were utilized to measure the level of self-esteem and depression symptoms. BMI mean scores were 19.92 and 19.83 in high school females and college females, respectively. Based on BMI, 79.2 percent of high school females and 85.2 percent of college females were in a normal weight range. Only 2.6 percent of high school females and 1.5 percent college females were obese. Both high school and college females perceived their body weight problem as moderately severe. The mean scores of depression were 20.33 in high school females and 21.69 in college females. Sixty percent of high school females were depressed and 73.4 percent of college students. There was no significant difference between two groups in BMI. However, high school females perceived their weight problem more severe than college females. College females had higher levels of self-esteem and depression than high school females. BMI and perceptions of weight problem revealed a positive relationship in both groups. Results of the study revealed that a perception of weight problem contributed significantly to predict the level of self-esteem and depression in both groups. BMI score had significant effect on only college females' self-esteem. In the study, even though the mean score of BMI was in a normal range, subjects perceived their weight problems as moderatley severe. Since the perception of a weight problem influenced the level of self-esteem and depression, health care providers need to teach them about the normal weight range in BMI criteria.

• 한국의료질향상학회지
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• 제2권2호
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• pp.130-145
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• 1996

Purpose : the management of University Hospital is being challenged in maintenance of reasonable level of income and high ranked reputation by domestic competition with each other and emergence of enterprised owned hospitals. It is imperative that University Hospitals have to make management for patient satisfaction. Furthermore, increased patient's requirement for qualified hospital services (quality assurance) and low-estimated service fee also repress the hospital management condition as well as medical markets open following with Urguay Connection. Due to these unforable conditions surrounding hospital management, -University Hospitals are being pressed to seek improved management strategies. To develope the strategies, we need to have basic understanding about the problems on hospital management and detail information for various patient's requirement. Methods: For this study, we have analysed out-patients from five different University Hospitals located in Seoul, Korea. To obtain the data, we have carried out personal interviews with patients who patients who visit the Out-Patient Clinics of five different University Hospitals using a previously prepared questionnaire. Result: Around 65.7 percent of the visits to University Hospitals were indwelt in the vicinity of 1 hour and motuvation of visiting University Hospital was expending high wuality medical csre in 49.3 percent. The 79.3 percent of the patients have experienced inconvenience during medical care in University Hospital. The most inconvenient condition was waiting for doctors. The 57.2 percent of total patient have experienced rudness. The most rudness condition was registration and receipt desk in 44.4 percent. Patient expect that doctors working in University Hospitals as professors have high and updated medical knowledge(50.4%) and University Hospitals have a high quality medical care system(79.4%). The patient satisfaction was relatively low in 61.1 percent of total patient and revealed high frequency of again visit University Hospital in satisfaction group. Comparison of interhospital analytical study showed quite difference on various problems. Conclusion: Almost patients who visit to Out-Patient Clinic of University Hospital havevisiting motivation to high quality medical care. University Hospitals have several different unsatisfactorial factors and revealed different degree of patient satisfaction. In a future day, University Hospitals have to make use of another University Hospital's merits for approach of Benchmarking and also should be studied decision factors of patient satisfaction and interhospital difference of them.

• Asian-Australasian Journal of Animal Sciences
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• 제16권2호
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• pp.165-171
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• 2003

Sixty semen ejaculates collected at weekly interval from four Murrah Buffalo bulls over a period of seven months (Nov.1999 to May 2000) were used in the present study. Three buffer medium (sodium citrate, TES and Tris) were used for soaking of sephadex. Three grades of sephadex (G-15,G-100, and G-200) were used for preparation of columns. Columns of three different height (one, two and three cm) were used for separation of semen. Twenty semen ejaculates were used in each project. In the first experiment each semen ejaculates was divided into four parts. One part was kept as control and other three parts were passed thought one cm column of sephadex G-15 prepared in three different buffers. There was significant (p<0.05) increase in percent progressive sperm motility and percent live spermatozoa and decrease in percent abnormal spermatozoa and percent spermatozoa with damaged acrosome as well as sperm numbers after filtration through all the three columns. Sperm quality obtained in the filtrate of column prepared in Tris buffer was better in comparison to other two buffers. So the Tris buffer was used in the second trial. Twenty semen ejaculates were used in this experiment. Each semen ejaculate was divided into four parts. One part was kept as control (non-filtered) and other three parts were passed through columns of different grade of sephadex (G-15, G-100 and G-200). Progressive sperm motility and live sperm percentage improved significantly while decline in percent abnormal spermatozoa and percent spermatozoa with damaged acrosome and sperm concentration was observed after filtration through all the columns as compared to control (non-filtered) semen. Since post filtration quality of semen was better in the sephadex G-100 column, therefore it was selected for the next experiment. In third experiment, Tris buffer and sephadex G-100 were used for preparing columns of different height (one, two and three cm) and twenty semen ejaculates were filtered. The quality characteristics of semen (percent progressive sperm motility, percent live spermatozoa and sperm concentration) after filtration through one cm column were significantly (p<0.05) higher than after filtration through columns of two and three cm height. However non -significant (p>0.05) difference due to height of columns was observed for percent abnormal and percent damaged acrosome but 1 cm column comparatively gave better result than of 2 and 3 cm column height.

• Clinical and Experimental Pediatrics
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• 제48권6호
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• pp.606-613
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• 2005

목 적 : APSGN은 소아에서 흔히 볼 수 있는 급성 사구체 신염의 하나로, 대부분의 환자에서 급성기 이후 완전한 회복을 보이지만, 소수의 환자에서는 급성기 합병증으로 사망하거나, 이후에 만성 신부전으로 진행하기도 하는 것으로 알려져 있다. 최근 과거에 비하여 발생빈도가 줄어들었으나, 여전히 소아에서 흔히 볼 수 있는 신질환으로 최근 10년간의 임상 양상을 살펴보고, 과거의 보고들과의 차이를 알아보고자 하였다. 방 법 : 1994년 1월부터 2003년 12월까지 서울아산병원 소아과에서 APSGN으로 진단받고 입원 또는 외래 치료를 시행한 105명의 환아를 대상으로 후향적으로 의무기록을 검토하여 연구하였다. 결 과 : APSGN으로 진단받은 환아들의 남녀비는 2 : 1이었고, 평균연령은 $8.5{\pm}2.6$세였다. 연평균 발생 비율은 $10.5{\pm}4.9$였고, 연중 발생을 살펴보면 대부분(60.0%)의 환아가 10월에서 1월 사이에 발생하였다. 내원 당시 부종이 82명(78.1%), 육안적 혈뇨 70명(66.7%), 고혈압 50명(47.6%), 핍뇨 22명(20.9%)에서 나타났고, 현미경적 혈뇨 105명(100%), ASO 양성 99명(94%), C3 감소 96명(91.45), 단백뇨 67명(63.8%)에서 나타났고, BUN이 증가한 경우가 38명(26.2%)였다. C3가 감소하였던 96명 중 70명(75.3%)에서 8주째 정상으로 회복되었다. 22명의 환아에서 신장조직 검사를 시행하였다. 급성기 증상은 대부분의 환아에서 1-2주 사이에 소실되었다. 결 론 : APSGN의 임상양상은 과거의 연구들과 비교하여 큰 차이가 없었고, 급성기 회복률 및 단기예후는 우수하였다.

• Asian Pacific Journal of Cancer Prevention
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• 제14권2호
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• pp.1009-1016
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• 2013

Background: The benefits of physical activity are well established and recognized to prevent adults from many chronic diseases and particularly some forms of cancers. Objectives: The present study was conducted to investigate the present status of physical activity among Saudi adults in Al-Ahsa, and to examine the association between the stages of change for physical activity and perceived barriers, and self efficacy. Methods: A cross-sectional study of 242 subjects (118 males and 124 females) attending health centers aged between 20-56 years, were personally interviewed for demographic data, anthropometric measurement, physical activity level, stages of change for physical activity, self efficacy and perceived barriers. Results: Forty eight percent of the females were overweight and 16.9% of the males were obese with no significant difference between the genders for BMI categories. More than half of the females were inactive and 39% of the males were physically active with a significant difference (P=0.007). Twenty percent of the males were in maintenance stage, while similar percentage of the females were in contemplation stage. However the majority of the subjects were in pre-contemplation stage with a significant difference across the stages. Males had a higher mean score of self efficacy and less external barriers of physical activity. The major barrier among the females was lack of time ($7.2{\pm}1.4$) and in the males, lack of motivation ($7.7{\pm}1.4$). The females had less internal ($21.2{\pm}3.8$) barriers comparable to the males ($23.08{\pm}4.7$). Both genders had a significant relationship between stages of changes of physical activity and perceived barriers (internal and external), but in the females no significant difference across the stages was observed for self efficacy unlike the males who had a significant difference for self efficacy and self efficacy categories. Conclusion: The present study provided useful data on stages of change for physical activity and some psychosocial factors (self efficacy and perceived barriers) that can help to tailor strategies aiming at increasing physical activity level according to self efficacy and to the barriers detected, to prevent many chronic diseases including certain types of cancer in Saudi Arabia.

• 한국콘텐츠학회논문지
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• 제9권5호
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• pp.166-173
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• 2009

강원지역 D 대학 치위생과 2, 3학년 학생들의 치면세마 실습시간에 내원한 환자중 20대 대학생 263명을 대상으로 구강건강 관련 스켈링 만족도 및 구강위생용품 사용 실태 조사 결과는 아래와 같다. 1. 학생들이 스켈링을 받은 경험이 있는지 살펴본 결과 스켈링을 받은 경험이 있는 학생이 61.2%로 그렇지 않은 학생 38.8%보다 많은 것으로 나타났다. 학생들이 스켈링을 받은 장소에 대해 살펴본 결과는 스켈링을 치과에서 받은 학생이 75.2%로 대부분을 차지하였으며 성별로는 남학생이 34.4%로 여학생 11.8%보다 스켈링을 학교에서 많이 받았고 여학생은 88.2%로 남학생 65.6%보다 치과에서 많이 받았으며, 성별에 따라 유의미한 차이를 보였다($\chi^2$=10.79, p<.01). 2. 스켈링에 대한 만족도에 대해 성별로 살펴본 결과 성별로는 남학생이 38.7%로 여학생 26.5%보다 "잘 모르겠다"에 높은 분포를 보였고, 여학생은 57.4%로 남학생 55.9%보다 스켈링을 받을 당시 아프지 않았다고 인식하였으며, 성별에 따라 유의미한 차이를 보였다($\chi^2$=6.38 p<.05). 3. 구강위생용품 사용 실태에 대하여 조사한 결과, 학생들이 치실을 사용한 경험이 없는 학생이 72.2%로 혀 세척기를 사용한 경험이 없는 학생이 86.3%로 대부분을 차지하였으며, 통계적으로 유의미한 차이가 없었다.

• 한국학교보건학회지
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• 제3권1호
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• pp.101-118
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• 1990

학생들 간에 사용되고 있는 각종 약물 남용에 관한 실태와 문제점을 알아보기 위하여 1989년 3월 15일부터 3월 29일 사이에 부산 시내에 위치한 인문계 실업계, 남 녀 고등학교 각각 1개교씩 총 4개교의 학생 2,411명을 대상으로 지난 1년간 약물 남용실태를 설문조사한 결과를 요약하면 다음과 같다. 대상학생들의 24.4%가 흡연경험이 있었고, 현재 피우는 학생은 11.6%였으며, 실업계 학생이 인문계보다 더 많았다. 안정제, 최면제, 각성제를 제외한 모든 약물의 약명 파악률은 90% 이상이었고, 지난 1년간 복용경험자 비율은 진통제, 소화제, 자양강장제가 70~80% 수준이었고 각성제는 15.6%, 안정제는 1.4%, 최면제는 0.5%, 본드 1.4%, 신나 0.5%였다. 약물 사용 경험자중에서 매일 복용 혹은 사용하고 있는 자의 비율은 진통제 7.7%(145명), 소화제 6.2%(118명), 자양강장제 5.2%(96명), 안정제 5.9%(2명), 각성제 5.0%(19명), 마약류 2.8%(1명)였으나 최면제와 본드의 매일 사용자는 없었다. 이로 미루어 볼때 고등학생은 비마약성 약물의 남용이 심각하다고 하겠다. 약물을 치료목적 이외에 사용한 학생은 남 녀 각각 진통제 8.4%, 6.5%, 소화제 20.7%, 14.7%, 자양강장제 65.4%, 55.5%였으며 마약류는 우울할 때나 호기심으로 쓰는 율이 높았다. 특히 각성제는 대부분 공부를 위하여 사용되고 있는 것으로 나타나 입시제도의 심각성이 지적되고 있다. 구입 장소별로는 마약류, 본드, 신나는 구멍가게나 행상, 친구에게서 구입률이 가장 높았고, 그 이외의 약품은 약국과 의료기관에서의 구입률이 높았다. 흡연자가 비흡연자에 비하여 모든 약물을 월등히 많이 사용하고 있었으며, 특히 마약류의 사용은 흡연과 아주 밀접한 연관성이 있었다. 대상 학생들의 약물의 이름을 알고 있는 비율은 높으나, 약물을 타당한 목적(신체적, 정신적 건강향상)에 사용하지 않는 경우가 많았고, 약물의 처음 사용시기가 중학시절(14~15세)이 많았으며 호기심에서 사용한 율이 높아기 때문에 약물남용의 부작용과 의존성에 대한 경각심을 일찍부터 고취시켜 줄 필요가 있다고 판단되어 국민학교 교육과정에서부터 약물 남용예방을 위한 보건교육 및 홍보가 시급하다고 하겠다. 이와 함께 학생들의 금연에 관한 교육 및 홍보가 우선되어야 할 것이다. 또한 약물을 약국, 구멍가게 등에서 쉽게 구입할 수 있었다는 사실로 보아 약물 통제를 위한 규제를 검토 보완해야 하며, 의약 분업의 조속한 실시가 필요한 것으로 생각된다.