• 컴퓨터교육학회논문지
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• 제15권2호
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• pp.9-18
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• 2012

본 연구에서는 청소년의 컴퓨터 사용 유형별 관련변수의 추출 알고리즘 과정을 조사하였다. 이를 위해 한국청소년 패널 조사(KYPS)의 중 2패널의 1차년도 자료(총 3409명, 남: 1704명, 여: 1705명)를 활용하여 데이터마이닝의 의사결정트리분석을 하였다. 그 결과, 오락추구는 성별, 컴퓨터 사용시간, 비행친구 수, 부모감독, 주변문제아인식, 부모공부기대, 자아통제력, 교사애착, 형제자매사이 등, 관계추구는 성별, 사이버동아리 참여, 컴퓨터 사용시간, 자기신뢰, 온라인 비행 등, 정보추구는 학업에 대한 열중, 개인공부시간, 낙관적 성향, 학기 중 공부시간과 여가시간, 본인희망교육, 사이버동아리 참여, 자기신뢰, 주변사람들비난 등의 변수들이 조합되는 다양한 조건에 따라 증가하는 것으로 나타났다. 본 연구의 결과로 청소년의 컴퓨터 사용과 관련된 다양한 조건들을 심층적으로 이해하고 컴퓨터를 좀 더 효율적으로 활용할 수 있음을 제언하였다.

• 한국직업건강간호학회지
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• 제17권1호
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• pp.64-75
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• 2008

Purpose: The purpose of this study was to analyze of PCAs' activity classification system and time of PCAs who worked in Wamco. Method: The data were collected from 2 WAMCO and 308 subjects between February and August, 2007, by questionnaire and 24 time survey. The data were processed with SPSS Win 12.0. Result: In activity analysis, PCAs' activities were classified into 20 domains and 76 activities, which were hygiene, bathing, feeding & nutrition, elimination, respiration, skin care, exercise & transfer, problematic behavior control, communication, observation & measurement comfort, medication, assisting test & treatment, reporting, environment management, patient belongings care, education attendance, indirect caregiving weekly/monthly PCAs' activity. And the PCAs' time analysis showed the average of 24hrs PCAs' time were 798.8 minutes, in which 46.8% were used in day-duty, 33.6% in evening-duty, and 19.6% in night-duty. There were no statistically significant difference in total PCAs time according to the type of industrial accidents and PCAs' type and qualification. But there were statistically significant difference in total PCAs time according to the type of PCAs (day-duty/all-night vigil. Conclusion: The results of this study can be utilized usefully and reasonally in deciding of PCAs staffing and PCAs' type and grade in WAMCO.

• 한국운동역학회지
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• 제29권2호
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• pp.105-112
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• 2019

Objective: The main purpose of this study was to investigate the effects of wearing an ankle weight belt while performing gait in water by focusing on the effect of using ankle weights have on the gait kinematics and the muscle activities for developing optimum training strategies. Method: A total of 10 healthy male university students were recruited for the study. Each participant was instructed to perform 3 gait conditions; normal walking over ground, walking in water chest height, and walking in water chest height while using ankle weights. All walking conditions were set at control speed of $4km/h{\pm}0.05km/h$. The depth of the swimming pool was at 1.3 m, approximately chest height. The motion capture data was recorded using 6 digital cameras and the EMG was recorded using waterproof Mini Wave. From the motion capture data, the following variables were calculated for analysis; double and single support phase (s), swing phase (s), step length (%height), step rate (m/s), ankle, knee, and hip joint angles ($^{\circ}$). From the electromyography the %RVC of the lower limb muscles medial gastrocnemius, rectus femoris, erector spinae, semitendinosus, tibialis anterior, vastus lateralis oblique was calculated. Results: The results show significant differences between the gait time, and step length between the right and left leg. Additionally, the joint angular velocities and gait velocity were significantly affected by the water resistance. As expected, the use of the ankle weights increased all of the lower leg maximum muscle activities except for the lower back muscle. Conclusion: In conclusion, the ankle weights can be shown to stimulate more muscle activity during walking in chest height water and therefore, may be useful for rehabilitation purposes.

• International Journal of Advanced Culture Technology
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• 제9권1호
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• pp.70-78
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• 2021

It is true that the police have been faithful to the role of the regime's sewer and committed many disruptions and errors, and have been criticized and criticized by the public. It should now be the foundation of the democratic police and an organization supported by the people. The problem is that the quality, personality, and values of 130,000 police officers should be changed and should be in line with the spirit of the times. One of the theories of police corruption is the "rotten apple hypothesis." The theory is that there is a high possibility that the entire police force will be corrupted, as if the defective apple in the apple box is rotten and the whole apple is rotten, without filtering out potential corrupt police officers during the recruitment phase. In other words, the cause of corruption is based on personal flaws. This study intends to analyze the causes of police corruption and improvement measures. The purpose of this study is to ensure that police officers in charge of national security are usually armed with ethics and good conduct. The police should be trusted by the people and need a stronger prescription for police corruption. In this respect, this study aims to solve the corruption problem of police officials, analyze anti-corruption, and find out what are the desirable countermeasures. The main study methods of this study are as follows; First, we first tried to collect data through research on corruption-related literature. The analysis was focused on the related papers of police corruption and government reports. Second, police corruption theory and anti-corruption alternatives were analyzed. It was reviewed focusing on the theory of corruption or translated data. Third, a literature survey was analyzed to examine the National Police Agency's perception of police corruption. Based on these research methods, we tried to derive the desirable control measures for the hypothesis of police corruption. This study is believed to have contributed to supporting the organizational corruption and culture of the apple box, including the personality of the individual's values, which is a rotten apple theory of police corruption.

• 한국산학기술학회논문지
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• 제16권9호
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• pp.6169-6179
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• 2015

본 논문은 특성화고 여학생을 대상으로 자율성 증진 금연 프로그램을 적용하여 일일 흡연량, 타액 코티닌, 지각된 동기 및 자율성에 미치는 영향을 규명하기 위한 유사 실험연구이다. 연구 대상자는 경상북도 G시와 K시의 흡연 여학생 47명이었으며, 자율성 증진 금연 프로그램은 주 2회 총 8회 동안 실시되었다. 자료 수집 기간은 2013년 4월 1일부터 4월 26일까지 약 1개월이였다. 수집된 자료는 SPSS/WIN 18.0 프로그램을 이용하여 유의수준 5%하에서 서술적 통계, T-검정을 시행하였다. 연구결과 자율성 증진 금연 프로그램을 제공받은 실험군은 제공받지 않은 대조군보다 일일 흡연량이 유의하게 줄어들고(p=.044) 타액 코티닌 음성 반응이 유의하게 많아졌으며(p=.048), 지각된 동기(p=.001)와 자율성(p=.027) 점수는 유의하게 높아졌다. 이는 자율성 증진 금연 프로그램이 학교 금연 프로그램으로 흡연 여고생의 금연율을 높이기 위한 방안으로 적용가능하다는 것을 시사한다.

• 대한간호학회지
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• 제10권1호
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• pp.21-27
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• 1980

The purpose of this study was undertaken to determine the health interests by middle school students in Soo-Dong Myun. It was planned that this data would help nursing help students who is under the community health nursing pratice in Soo-Dong, and development of health education programmes. The instrument used which was orginially the Health Interest Inventory by Ramsdell, was modified. This study involed 358 students ranging from 1 st year to 3 rd year and was carried out from September 1 to 30, 1979. The results obtained as follows ; 1. Comparing students health interests by grade, there was a high interested areas were$\ulcorner$Dental health$\lrcorner$,$\ulcorner$Mental health$\lrcorner$, and$\ulcorner$Alcohol, drugs and smoking$\lrcorner$On the other hand the least interested areas were$\ulcorner$Family health$\lrcorner$and$\ulcorner$weight control$\lrcorner$There was a difference between 2 nd and 3 rd year by grade mean score. In the health areas, all grade students are interested in$\ulcorner$Nutrition$\lrcorner$.$\ulcorner$control ＆ preventive disease$\lrcorner$and$\ulcorner$consumer health$\lrcorner$. 2. Comparing students health interests by sex. the tank order of health interests was similar to both sex, The most interested areas were$\ulcorner$Mental Health$\lrcorner$,$\ulcorner$Dental health$\lrcorner$. and$\ulcorner$Alcohol, drugs, and smoking$\lrcorner$. The least interested areas were$\ulcorner$Family health$\lrcorner$and$\ulcorner$weight control$\lrcorner$. There was no sinificant difference by sex. But in the health areas. girls are interested in$\ulcorner$Nutrition$\lrcorner$and$\ulcorner$Control and preventive disease$\lrcorner$. and boys are interested in the$\ulcorner$Safety education$\lrcorner$. 3. There was a highest correlation between$\ulcorner$Family health$\lrcorner$area and$\ulcorner$personal grooming$\lrcorner$, the lorvest correlation between$\ulcorner$consumer health$\lrcorner$area and the combined $\ulcorner$Family health$\lrcorner$and$\ulcorner$Weight control$\lrcorner$.

• 한국산학기술학회논문지
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• 제18권6호
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• pp.494-502
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• 2017

본 연구는 치위생과 학생의 학교 교육과정상에 들어있는 치과감염관리 교과의 수업 후 감염관리 인식 변화를 학년별로 알아보고 교육 과정에 감염관리 교육방법의 추가 편성을 제시하기 위한 서술적 인과관계 연구이다. 결과로 첫째, 병원 실습 경험에 따른 항체인지는 실습 경험이 있는 학생 127명(62.6%)이 더 알고 있었고, 개인 방호 선택에서는 실습 경험과 상관없이 손 씻기가 가장 높았고, 그다음으로 마스크 쓰기를 선호하였으며, 감염 교육방법 선택은 실습수업이 병원 실습 경험과 상관없이 높게 나타났다. 둘째, 학년에 따른 항체 인지는 학년이 높을수록 더 인지하였고, 개인 방호 선택은 1, 2학년은 손 씻기를 선택한 반면, 3학년은 마스크 쓰기 (44.4%)를 선택하여 학년 간의 차이를 보였다 셋째, 실습 경험에 따른 환자 및 개인 건강인식 정도 차이에서는 환자 건강 인식 관련 결과 t 값은 '2.387', 유의 확률은 '0.05'보다 작기 때문에 실습 경험에 따른 환자 인식에는 차이가 나는 것으로 나타났다. 넷째, 환자 관련 감염 인식에 대해서는 교육 후 인식 변화가 가장 큰 설명 요인으로 나타났다. 학년, 실습 경험 유무의 차이에 따른 유의성이 나타난 것은 학년별로 실습 경험이 내재되어 있고, 임상실습 경험의 수에서 차이를 보였으며, 학생들의 교육방법 선택에서도 실습교육이 가장 효과적인 방법으로 선호도가 높았다. 감염 교육의 효과는 인식 형성에 도움을 주는 결과를 도출하여 계속적인 감염관리 교육의 계발과 재교육의 필요성을 알 수 있었다.

• 치위생과학회지
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• 제9권1호
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• pp.53-59
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• 2009

치과위생사의 감염관리 실천도를 측정하는 척도를 개발하고 타당화하기 위해 254명의 치과위생사를 대상으로 설문조사를 실시하였다. 예비척도는 리커트 4점 척도로서 21개의 문항으로 구성되었으며, 신뢰도 분석, 탐색요인분석, 확인요인분석을 통해 척도의 차원과 항목을 축소하고 신뢰도와 타당도를 검증하였다. 1. 탐색요인분석과 신뢰도 분석을 통해 4개 요인과 12개의 항목으로 척도를 수정하였다. 수정된 척도의 요인은 '예방접종 및 정기검진'(2항목), '기구 소독 및 멸균'(3항목), '손위생 관리'(4항목), '개인 보호'(3항목)가 추출되었으며, 전체분산 중 58.296%를 설명하고 있다. 예비척도 중 '환경 관리' 요인이 제외되었다. 2. 확인요인분석을 통해 한 문항을 제외하였다. 최종적인 측정모형은 4개 요인과 11개 항목으로 구성되었으며, 모형의 적합도는 $x^2$= 79.593(df = 38, 0 = 0.000), RMR= 0.045, GFI = 0.940, CFI = 0.904, AGFI = 0.896, NFI = 0.837, TLI = 0.861, RMSEA = 0.67로 나타나 대체로 기준을 충족하였다. 모든 측정변수의 요인부하량은 유의하였으나(p < 0.001), 세 변수만이 0.7 이상으로 나타났다. 평균분산추출값과 구성개념신뢰도는 대체로 기준을 충족하지 못하였으나, 모든 요인의 평균분산추출값은 각 요인간 상관관계제곱값 보다 크게 나타났다. 3. 요인분석을 통해 추출한 네 개의 요인이 치과위생사의 '감염관리 실천률 인식'에 미치는 영향을 알아보기 위해 네 요인을 독립변수로 선정하고 실천률 인식을 종속변수로 선정하여 회귀분석을 실시하였다. $R^2$는 0.304, 수정된 $R^2$은 0.431, F = 25.813, p = 0.000이며, '손위생 관리'를 제외한 세 변수의 회귀계수는 통계적으로 유의하게 나타났다.

• Journal of Biosystems Engineering
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• 제22권4호
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• pp.469-478
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• 1997

This study was conducted to develop an automatic nutrient-solution mixing system for small-scale sewers. The nutrient-solution mixing system consisted of a low-cost and precise metering device and data acquisition ＆ control system with a personal computer. and, the metering device was composed of three parts those were supply pumps, metering cylinders and venturi tube. The system controlled electric conductivity(EC) and pH of nutrient-solution based on the time-based feedback control method with the information about temperature, EC, and pH of the nutrient-solution. The performance of the nutrient-solution mixing system was evaluated through the control of EC and pH while compared with those of commercial system. Also an experimental cultivation of tomato was conducted to verify and to improve the developed system. Results of this study were as follows. 1. The correlation coefficient of meteing device between the flow rate and operating time was 0.9999, and the linear reuession equation computed was y=21.759x, where y is the discharge($g$) and x is the operating time(s). 2. Calculated errors for the developed metering device and two commercial pump were $\pm$0.3% $\pm$2.45% and $\pm$1.38 % FS error respectively. 3. An automatic nutrient-solution mixing system based on a low-cost and precise metering device was developed. 4. The full scale errors of the developed system in controlling EC and pH at 23$\pm$1$^{\circ}C$ were $\pm$0.05mS/cm and $\pm$0.2, respectively 5. When using the commercial system, the controlled values of EC and pH of the 500 $\ell$ of water were 1.29 mS/cm and 6.1 pH for the setting points of 1.4 mS/cm and 6.0 pH respectively at 23$pm1^{\circ}C$. 6. The developed nutrient-solution control system showed $\pm$0.05 ms/cm of deviation from the setting EC value over the experimental cultivation period. 7. The deviation from the average values of Ca and Mg mass content in the several nutrient-solution were 0.5% and 1.8% respectively.

• 대한한방내과학회지
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• 제22권3호
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• pp.423-430
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• 2001

Objects: The purpose of this case-control study was done to examine the relationship between stroke prevalence and the anthropometric indices(body mass index(BMI), modified Broca's method(Broca's index), waist circumference(WC), waist-hip ratio(WHR)), dyslipidemia, past medical history(heart disease, hypertension, diabetes mellitus(DM)), life-style factors(smoking, drinking) in Korean adults. Methods : The study group consisted of neurologically confirmed 116 stroke patients as the case group and 116 non-stroke patients as control group. Obesity were defined as $BMI{\geq}25kg/m^2,\;Broca's\;index{\geq}30%$, WC >94cm in male and WC >80cm in female, $WHR{\geq}0.9$ in male and $WHR{\geq}0.8$ in female. Oyslipidemia were defined as total $cholesterol{\geq}200mg/dl,\;triglyceride{\geq}200mg/dl,\;HDL-cholesterol {\leq}35mg/dl,\;LDL-cholesterol{\geq}160mg/dl$. Information on life-style factors and past medical history was obtained from personal interview. The analysis of the data was done by means of chi-square test(Pearson's chi-square test, Fisher's exact test) and student t-test. Results: The results were as follow. In the study group: Hypertension had a 4:05 odds ratio, Broca's $index{\geq}30%$ had a 1.98 odds ratio, WC >94cm in male had a 2.17 odds ratio, WC >80cm in female had a 2.80 odds ratio, $WHR{\geq}0.9$ in male had a 4.66 odds ratio, $WHR{\geq}0.8$ in female had a 5.35 odds ratio, but heart disease, DM, life-style factors, serum lipid and 8MI had no direct relationship with odds ratio(nonsignificant). By student t-test, risk factors for stroke were found to be total cholesterol(p=0,025), LDL-cholesterol(p=0.013), WC(p=0.000) and WHR(p=0.000). Conclusions: This study suggests that people should be advised to control hyperlitension, hyperlipidemia and obesity since these carry a risk of stroke.