• Maxillofacial Plastic and Reconstructive Surgery
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• 제31권3호
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• pp.193-197
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• 2009

Background: Though it is clear that many types of viruses can infect the oral mucosa, its condition for infection is unclear. The purpose of this study was to analyze the conditions for viral infection of normal oral mucosa and explore the possibility of topical gene therapy to oral mucosa using a viral vector. Methods: Freshly taken fragments of the palate and the tongue of mice were used for organ culture. The specimens were exposed to green fluorescent protein (GFP)-adenoviral vector for 1 hour except for the control. Initial viral titer was $6.3{\times}10^{11}\;pfu/ml$ and the virus was diluted to working concentrations. The dilution ratio was 1:1,000 ($6.3{\times}10^8\;pfu/ml$), 1:10,000 ($6.3{\times}10^7\;pfu/ml$), and 1:100,000 ($6.3{\times}10^6\;pfu/ml$). They were then cultured on a stainless steel wire mesh in an organ culture dish. The specimens were stereoscopically examined every 24 hours for 6 days, after which they were fixed and analyzed through immunohistochemical methods Results: There was no visible expression in the control, $6.3{\times}10^6\;pfu/ml$, and $6.3{\times}10^7\;pfu/ml$ groups. Initial expression was observed at 24 hours after infection in both the palate and the tongue in $6.3{\times}10^8\;pfu/ml$ and the expression significantly increased until 3 days in the palate and 2 days in the tongue after infection (P<0.05). In both groups, the expression was mostly observed at the resection margin. Immunohistochemical studies showed that the epithelial cells were positive to GFP. Conclusion: The present study showed that topically applied adenovirus containing specific genetic information of GFP could successfully transduce GFP in normal oral epithelial cells at the resection margin in organ culture in terms of dose and exposure time.

• 한국조리학회지
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• 제22권4호
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• pp.37-50
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• 2016

본 연구는 호텔 조리직원들을 대상으로 음식점 원산지표시에 대해 어느 정도 지식을 가지고 있는지, 그 지식 정도가 조리업무 중 하나인 원산지 표시 업무 수행에 어느 정도 영향을 미치는지를 파악하고자 하였다. 또한, 원산지표시에 대한 교육시간에 따라 지식의 차이 정도를 알아보고자하며, 교육시간이 지식과 수행도 관계에 어떠한 조절효과가 있는지를 파악하는 데 목적이 있다. 본 연구는 서울소재 특급호텔 10곳에 재직 중인 조리직원들을 대상으로 2014년 11월 14일부터 11월 27일까지 14일 동안 총 250부의 자기기입식 설문지를 배포하여 응답이 불성실한 설문지 4부를 제외한 246부(98.4%)를 사용하였다. 수집된 자료를 바탕으로 연구에 필요한 모든 자료의 분석은 SPSS 18.0 통계 프로그램을 활용하여 빈도분석, 신뢰성을 검증, 탐색적 요인분석, 단순회귀분석, t-test, 조절회귀분석을 하였다. 연구결과, 호텔 조리직원들의 음식점 원산지표시에 대한 지식은 업무 수행도에 유의한 정(+)의 영향을 미치며, 교육시간은 1~2시간 받는 그룹의 지식정도가 더 높아, 교육시간에 따라 지식이 차이를 보이고, 지식과 수행도 관계에 교육시간이 조절하는 것으로 조사되었다. 따라서 호텔조리직원들의 음식점 원산지표시 지식을 높이고 수행정도를 높이기 위해서는 교육시간을 늘려 조리직원들이 더 많은 지식을 학습하여 실제 업무에 사용하도록 하여야 할 것이다. 연구의 한계 및 향후 연구방향에 대해 논의 하였다.

• 한국재난정보학회 논문집
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• 제16권2호
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• pp.402-410
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• 2020

연구목적: 본 연구의 목적은 '스마트 안전관리 시스템'의 통신 음영지역을 해소하는 것이다. '스마트 안전관리 시스템'은 고위험 작업장(산업현장, 재난현장)에서 일하는 근로자의 실시간 데이터를 모니터링하고 중계할 수 있다. 데이터는 구조팀에게 구조작업 시 '골든 타임'을 제공한다. 연구방법: 이 연구에서 안전 태그는 사용자의 중계기 역할을 하도록 설계 및 구현되었다. 연구결과: 다시 말해, 안전 태그와 지휘부의 통신 구간에서 통신 음영이 생길 경우, 안전 태그는 해당 지역의 다른 안전 태그에 대한 중계기 역할을 한다. 결론: 이 연구는 개발한 안전 태그가 통신 음영지역이 있는 특정 건물에서 통신두절 문제가 해소되는지 테스트했다. 먼저, 안전 태그와 지휘부 단말기 사이에서 통신 음영지역을 확인했다. 동일한 상황에서 추가 안전 태그를 배포한 결과 통신 음영지역이 해소된 것으로 나타났다. 중계기 역할을 하는 안전 태그는 테스트 빌딩에서 최대 지하 3층 까지 통신 음영지역을 해소할 수 있었다.

• 대한지역사회영양학회지
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• 제4권2호
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• pp.175-185
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• 1999

This study was conducted among the university students to investigate the effects of working in an daytime and studying in an evening class on dietary behaviors and nutrient intakes. A 24-hour recall method was used along with food frequency questionnaires. The subjects were composed of three groups : 172 were in the daytime calss regular student group(RS), 178 were evening class students without a job(ESWOJ), and 140 were evening class students with a job(ESWJ). An average age of the ESWJ was 31 years old, which was 9 years older than the RS and 7 years older than the ESWOJ. The types of the residence were significantly different among the groups ; were seif-boarding 74% of the ESWJ stayed at home while 47% of the RS were self-boarding and 61% of the ESWOJ. The survey shows that while a great majority of the RS and ESWOJ has breakfast and supper at home, about 10% and 17% of the ESWJ ate breakfast and supper, respectively, at the cafeteria in their work place. The most frequently skipped meal was the breakfast in all groups. Approximately 9% of the ESWJ tended to skip the breakfast, while 27% of the RS and 33% of the ESWOJ did. It turns out that the mose common reason why ESWJ skipped meals was due to a lack of time. About 71% of the ESWJ ate out more than once a week compared to 57% and 62% of the RS and ESWOJ, respectively. Approximately 30% of the ESWJ ate out more than once a week compared to 57% and 62% of the RS and ESWOJ, respectively. Approximately 30% of the ESWJ spent less than 10 minutes at meal time, showing a hurried eating habit. The results show that the ESWJ tended to eat a variety of food s and eat less instant foods, but drink coffee more often compared to the other two groups. The results also show that in all groups, the intakes of energy, Ca, and vitamin A were lower than the Korean Recommended Daily Allowances(RDA). In addition to these nutrients, protein, vitamin B1, vitamin $B_2$, and niacin were also lower than the RDA in all make students, and Fe was lower than the RDA in all female students. Among the deficient nutrients, vitamin A showed the lowest % RDA : 48% in the male and 64% in the female students. Among the deficient nutrients, vitamin A showed the lowest % RDA ; 48% in the male and 64% in the female students. The intakes of Ca, Fe, and niacin in the ESWJ were significantly greater than those in the RS and ESWOJ groups, and the vitamin C intake in the ESWJ was greater than that in the ESWOJ(p<0.01). In conclusion, university students in all three groups have a serious imbalance in the nutrient intakes, and the evening class students with a daytime job have unhealthy dietary behaviors in the light of high frequency of eating out and heavy coffee drinking, a rushed eating pattern, and therefore showing a strong need of proper nutritional education for them.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2009년도 하계학술대회 논문집
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• pp.137-137
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• 2009

Thin-film transistors (TFTs) that can be prepared at low temperatures have attracted much attention due to the great potential for flexible electronics. One of the mainstreams in this field is the use of organic semiconductors such as pentacene. But device performance of the organic TFTs is still limited by low field effect mobility or rapidly degraded after exposing to air in many cases. Another approach is amorphous oxide semiconductors. Amorphous oxide semiconductors (AOSs) have exactly attracted considerable attention because AOSs were fabricated at room temperature and used lots of application such as flexible display, electronic paper, large solar cells. Among the various AOSs, a-IGZO was considerable material because it has high mobility and uniform surface and good transparent. The high mobility is attributed to the result of the overlap of spherical s-orbital of the heavy pest-transition metal cations. This study is demonstrated the effect of thickness channel layer from 30nm to 200nm. when the thickness was increased, turn on voltage and subthreshold swing were decreased. a-IGZO TFTs have used a shadow mask to deposit channel and source/drain(S/D). a-IGZO were deposited on SiO2 wafer by rf magnetron sputtering. using power is 150W, working pressure is 3m Torr, and an O2/Ar(2/28 SCCM) atmosphere at room temperature. The electrodes were formed with Electron-beam evaporated Ti(30nm) and Au(70nm) structure. Finally, Al(150nm) as a gate metal was evaporated. TFT devices were heat treated in a furnace at $250^{\circ}C$ in nitrogen atmosphere for an hour. The electrical properties of the TFTs were measured using a probe-station to measure I-V characteristic. TFT whose thickness was 150nm exhibits a good subthreshold swing(S) of 0.72 V/decade and high on-off ratio of 1E+08. Field effect mobility, saturation effect mobility, and threshold voltage were evaluated 7.2, 5.8, 8V respectively.

• Journal of Nutrition and Health
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• 제20권5호
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• pp.309-317
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• 1987

우리나라 아동의 비만실태를 파악하기 위한 연구의 일환으로 전국의 국민학교 5학년 10.751명의 체격분포를 조사하였다. 건강기록부를 이용하요 1학년때 부터 학년까의 키, 몸무게를 분석하고 설문지를 이용하여 체격과 관련된 일반 현황 및 식품섭취 빈도를 조사하였다 1)조사대상아의 어머니 중 29%가 직업을 갖고 있었으며 출, 퇴근시간이 어린이의 영양관리를 제대로 할 수 없는 경우가 많았다. 조사대상아의 5.8%가 거의 매일 결식하였으며 건강을 위해 약제를 복용하는 경우가 26%였다. 2)키는 4학년까지는 남학생이 우세 하다가 5학년때는 남학생이 137.1cm, 여학생이 137.6cm 였다. 몸무게는 남녀 각각 31.5kg, 31.2kg였으며 키, 몸무게의 10, 25, 50, 70 ,90percentile 분포에 해당하는 값이 제시되었다. 고학년이 될수록 남학생의 키의 성장속도는 둔화된 반면 여학생은 오히려 증가였다. 몸무게는 학년이 높아지면서 남녀 모두 증가폭이 커졌으며 여학생의 증가폭이 더 컸다. 키와 몸무게를 이용하여 5년간 BMI, RI, RW 갑이 계산되었다. 3) 49% 아동이 우유를 매일 섭취 하였으며 과자, 계란, 아이스크림, 초코렛의 섭취빈도가 높은 반면 치즈, 햄, 두유의 섭취빈도는 매우 낮았다.

• 한국산학기술학회논문지
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• 제13권9호
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• pp.3999-4008
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• 2012

본 연구는 물리치료사의 직무에 따른 Work-Related Musculoskeletal Disorder(WMSD)s에 대한 증상을 파악하기 위하여 통증치료군(56명), 성인 운동치료군(53명), 소아 운동치료군(22명)을 대상으로 근골격계 증상조사표와 Rapid Upper Limb Assessment(RULA)를 사용하여 근골격계 증상 및 작업의 유해도를 알아보기 위해 실시하였다. 그 결과 통증치료군 69.6%, 성인 운동치료군 84.9%, 소아 운동치료군 81.8%, 평균 77.9%의 자각 증상 호소율을 보였다. RULA를 이용한 인간공학적 위험 평가에서 Final Wrist & Arm Score와 Final Score에서 성인 운동치료군이 단위 시간당 작업 부하량이 가장 많은 것으로 나타났으며 Action Level은 통증치료군이 평균 $3.0{\pm}0.9$, 성인 운동치료군은 $3.3{\pm}0.6$, 소아 운동치료군은 $3.2{\pm}0.8$로 성인 운동치료군에서 가장 높았다. 근골격계 증상에 영향을 미치는 요인 중 키, 가사 노동, 육체적 부담정도, 과거 사고가 통계적으로 유의하였다. 이에 따라 물리치료사의 WMSDs를 방지하기 위한 장비 및 교육시스템이 보급되어야 할 것으로 사료된다.

• 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.

• 간호행정학회지
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• 제4권1호
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• pp.73-88
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• 1998

The management of nursing resource is very important. that is because nursing staff accounts for 30-40% of total staff in a hospital and nurses provide patoents with attentive service for hours daily. The continuous turnover of nursing staff. however, impedes the quality-oriented nursing care, which will consequently leads to the loss of human and material resource in competitive society. This study aimed to calculate nurse's activity and compare the activity amount based on career experience. Futhermore it aimed to find factors which would influence 'quality weighed direct nursing activity amount'. Questionnaires and check lists for this study were distributed to nurses in a suburban hospital outside of Seoul from October 20 to November 14. 1997. The nursing activities were calculated according to professionality. independency and working hour. And then it were accumulated by quality score. The collected data was analyzed by statistical methods as t-test, ANOVA, correlation, multiple regression. The results of this study were as follows ; Firstly, carrel' experience had no influence on the quality weighed nursing activity amount. But the quality level of service of skilled nurses was higher than that of new nurses. Secondly, career was a variable affecting the quality in nursing service. So career was positively related to the quality of nursing care. Patient's disease severity and number of patient were positively correlated with weighed nursing activity amount. But job satisfaction was negatively correlated v:ith the amount. Thirdly, the independent variables which had significant influence on the weighed nursing activity amount were disease severity and the number of patients, The severity score and number of patient were directly proportional to the weighed nursing activity amount. This results indicated· that weighed nursing activity amount was influenced by the number of patient and patient's disease severity. The quality score of nursing services for experienced members is higher than that of new staff. But both new and skilled staff showed no difference in the quality weighed nursing activity amount. Internal and. external environment influences nursing activities. The quality of nursing services is very important factor in nursing activity. Therefore nursing managers should make an effort to improve nursing care quality through continuous research. Also they should try to maintain experience nurses and assign nursing staff appropriately with patient's severity and other relevant factors being considered. The quality-improved nursing care in the hospital will strengthen hospital's competitiveness.

• 한국가정과교육학회지
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• 제11권2호
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• pp.89-110
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• 1999

The purpose of this study was to investigate the perception and eating behaviors of middle school students in Kwangju area about food and nutrition section of Home Economics course. The subjects were 480 middle school students. The major results were as follows： On the perception f food and nutrition section, the 1st graders learned ‘how to settle the problems related to food and nutrition and food choices’. The 2nd graders learned ‘the knowledge and principle of food and nutrition for improving dietary life’. The 3rd graders learned ‘actual dietary life functions like arranging menu and preparing meals’. Consequently, there was a significant difference in each grade and all boy and girl students have the highest response to the item ‘they learn how to settle the nutrition problem and foods choices’. On the interests in food and nutrition section, lower graders and girl students have higher interest than hgiher graders and boy students. The area which was considered as most interesting in food and nutrition sections was ‘cooking’ in all students. The perception of the concern on dietary life after learning food and nutrition section was higher in the 1st graders. On the perception of the area where was a great change in their own dietary life after learning food and nutrition section, the 1st graders responded there was a great change in ‘balanced dietary life’, the 2nd graders in ‘eating habit and nutrition of adolescence’and the 3rd graders in ‘cooking’. Especially, girl students showed more changes. On the perception of degree which food and nutrition section gives a help to actual life, students over 50% responded that it was helpful to their actual life. This showed that the lower the grades, the more help it gave to those students. On the perception of mother’s job, the students with working mother considered that they learned ‘actual dietary life functions like functions like arranging menu and preparing meals’from the food and nutrition section. In addition, they had high interests in the area of ‘cooking’. It was recognized that as the family size was greater, the food and nutrition section gave more helps to actual life. On eating behaviors of breakfast, the higher the grade, the more frequent they don’t have breakfast, boy students have more frequencies of having breakfast than girl students and the primary reason of not having breakfast is poor appetite. On whether going without a meal affects study or not, most of the 1st, 2nd and 3rd graders whether they are boys and girls or not responded it affected their study. On eating behaviors of lunch, most of boy and girl students in the 1st, 2nd 3rd grade have lunch box. On eating behaviors of supper, eating time is usually between 7：00 and 8：00 p.m and eating hour is mostly 10 or 15 minutes. On eating behaviors between meals, frequency of eating between meals is mostly once or twice a day and girl students have more frequencies of eating between meals, and the cause was hunger commonly in boy and girl students and ‘killing time’in girl students. The focus in getting the foods is ‘taste’and favorite food is fruit regardless of the grade.