• 한국유기농업학회지
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• 제21권1호
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• pp.95-104
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• 2013

본 연구는 토마토 유기재배 시 발생하는 주요 해충인 온실가루이와 담배가루이에 대해 친환경적인 방제방법을 개발하기 위해서 수행했다. 특히 담배가루이는 토마토에서 가장 문제가 되고 있는 황화잎말림바이러스의 매개충이다. 가루이류는 바이러스의 매개충일 뿐 아니라 토마토를 흡즙하게 되면 생육이 저조해지며 감로분비에 의한 그을음병을 유발한다. 현재 친환경적인 방법으로 황색점착트랩, 황온점벌, 지중해이리응애 등을 사용하는 방법이 있으나 사용적기를 놓치거나 하우스 환경이 천적에 적합하지 않으면 좋은 결과를 볼 수 없는 문제가 있다. 이번 연구에서 곤충들에 페르몬의 역할을 하는 올레산을 1,000ppm, 2,000ppm, 4,000ppm 고압분무기를 활용하여 3회 처리한 결과 2,000ppm 76%, 4,000ppm 84%의 높은 방제가를 보였으며 2,000ppm처리와 4,000ppm 처리 간에 유의성은 없었다. 가루이 방제에 기존에 사용되고 있는 님오일 1,500ppm과 dinotefuran 50ppm을 비교 시험한 결과 올레산 2,000ppm의 가루이 방제가가 82%로 가장 높았으며 님오일 1500ppm과 dinotefuran 50ppm은 각각 75%의 방제가를 보였으며 유의성은 없었다. 경제적 측면으로 보게 되면 10a 1회 방제시 님오일은 20,150원이 소요되는 반면 올레산은 3,180원이 소요되어 경제적으로는 올레산을 활용하는 것이 유리하다고 할 수 있다. 이상의 방제시험으로 토마토 유기농재배에서 올레산을 이용한 경제적인 가루이 방제방법을 제시할 수 있었다.

• 한국콘텐츠학회논문지
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• 제20권10호
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• pp.436-448
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• 2020

본 연구는 2017년 지역사회건강조사 자료를 이용하여 우리나라 만 19세 이상 성인을 대상으로 흡연형태별 구강건강 상태 및 관리와의 관련성을 평가하여 특히 전자담배가 구강건강에 미치는 영향을 알아보고자 하였다. 비 흡연, 궐련, 전자담배, 궐련과 전자담배 병용 4그룹으로 나눠 무응답과 응답거부 등 결측값 24명을 제외하고 최종 228,357명을 분석대상으로 하였다. 구강건강 상태 및 관리를 종속변수로 하여 로지스틱회귀분석을 시행한 결과 비 흡연군에 비해 궐련군과 혼합군은 다변량 회귀분석에서 유의한 차이를 보였다. 전자담배군은 연령과 성별을 보정한 결과변수에서만 유의한 차이를 보였으나, 다변량 회귀분석에서 스켈링 무경험에서만 0.72배 오즈비가 통계적으로 유의하였을 뿐, 다른 모든 결과 변수는 유의한 차이가 없었다. 본 연구에서 전자담배군과 구강건강과의 관련성이 나타나지 않았지만, 전자담배의 흡연량, 흡연강도 등 흡연패턴을 고려한 후속 연구가 필요한 것으로 사료된다.

• 한국학교보건학회지
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• 제35권2호
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• pp.57-64
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• 2022

Purpose: Adolescent suicide is an important issue worldwide. Although literature on preventing suicide among adolescents tends to focus on suicidal ideation, suicidal planning is also an important issue as a stage leading to suicidal behavior. This study aims to identify suicidal planning-related factors, including generalized anxiety disorder, among adolescents who had suicidal ideation. Methods: This secondary study used data generated from the 16th(2020) Korea Youth Risk Behavior Web-based Survey, which included 5,979 students who had suicidal ideation. Factors related to suicidal planning were identified by performing a logistic regression analysis of the participants. All analyses were performed using SPSS 27.0. Results: Among adolescents who had suicidal ideation, 23.8% had suicide plans. The suicidal plans were significantly related to school level (middle, OR=1.38, 95% CI=1.22~1.55), whether they were living with family (no, OR=1.36, 95% CI=1.06~1.75), perceived body image (normal, OR=1.23, 95% CI=1.05~1.44; Obese, OR=1.33, 95% CI=1.14~1.54), depression (yes, OR=1.47, 95% CI=1.25~1.72), tobacco use (yes, OR=1.31, 95% CI=1.12~1.54), alcohol use (yes, OR=1.21, 95% CI=1.06~1.38), drug use (yes, OR=1.96, 95% CI=1.44~2.66), and/or generalized anxiety disorder (severe, OR=1.76, 95% CI=1.44~2.14). Conclusion: The findings of the study suggest that in addition to the commonly recognized factors for adolescent suicide, generalized anxiety disorder should also be considered when establishing strategies to prevent suicide planning in adolescents who had suicidal ideation.

• 한국심리학회지 : 문화 및 사회문제
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• 제28권3호
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• pp.331-352
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• 2022

본 연구는 청소년의 게임이용시간과 자기통제의 시간에 따른 변화와 적응적 게임활용이 지니는 종단적 매개효과를 검증하기 위하여 잠재성장모형을 활용하였다. 적응적 게임활용의 종단매개효과 검증을 위하여 한국콘텐츠진흥원에서 주최한 2019 게임이용자패널연구 학술대회 참여를 통해 제공받은 청소년 863명의 게임이용자패널조사 4개년 응답자료를 활용하였다. 본 연구모형을 분석하기 위하여 SPSS 21.0과 Mplus 6.12를 활용하여, 각 변인의 시점별 정규성을 확인 후 상관분석, 종단적 매개분석을 순차적으로 실시하였다. 연구결과를 요약하면 다음과 같다. 첫째, 잠재성장모형을 분석한 결과, 게임이용시간과 적응적 게임활용, 자기통제는 모두 시간에 따라 선형적으로 성장하였다. 둘째, 측정된 변인들의 초기치와 변화율 간 관계를 분석한 결과 게임이용시간이 자기통제에 미치는 직접적인 영향은 유의하지 않았으나 적응적 게임활용을 통해 자기통제에 정적으로 유의한 영향을 미치는 것으로 나타났다. 지속적인 적응적 게임활용은 자기통제수준을 높이는 것으로 확인되었다. 셋째, Sobel 검증 결과, 적응적 게임활용의 초기치와 변화율 모두 완전 매개효과를 갖는 것으로 나타나 종단매개효과가 유의함을 확인하였다. 본 연구는 청소년의 자기통제 수준이 게임이용시간과 적응적 게임활용의 변화양상에 따라 변화를 보이는 종단적 과정을 통해 적응적 게임활용의 중요성을 확인하였다.

• 성인간호학회지
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• 제22권6호
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• pp.582-593
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• 2010

Purpose: Health care professionals represent an immediately available resource to promote smoking cessation. However, the content in smoking cessation intervention courses in most institutions is insufficiently covered due to the limited number of class hours. The purpose of this study was to develop a comprehensive tobacco cessation-web-based, multimedia, educational program for a range of medical professionals. Methods: Based on Jung's Teaching and Learning Structure Plan Model, a development process was proposed comprising four stages: (1) analysis, (2) planning, (3) production, and (4) operation/evaluation. The effectiveness of the program was tested using quasi-experimental design, and the participants in experimental group were required to complete the program. Changes in the level of knowledge and attitude were measured. Results: The educational program developed includes nine topics and 26 sub-topics. A total of 180 storyboards, 15 videos, and 27 pictures were made. After the education, the level of knowledge was significantly increased in the experimental group. Conclusion: This web-based program can be recommended as a potential medium for health care professionals to use in counseling smoking cessation. The study findings also indicated that the program may be either offered as a teaching aid or utilized concurrently with lectures for students studying health care-related topics.

• 대한두개안면성형외과학회지
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• 제17권1호
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• pp.1-4
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• 2016

Absorbable plates are used widely for fixation of facial bone fractures. Compared to conventional titanium plating systems, absorbable plates have many favorable traits. They are not palpable after plate absorption, which obviates the need for plate removal. Absorbable plate-related infections are relatively uncommon at less than 5% of patients undergoing fixation of facial bone fractures. The plates are made from a mixture of poly-L-lactic acid and poly-DL-lactic acid or poly-DL-lactic acid and polyglycolic acid, and the ratio of these biodegradable polymers is used to control the longevity of the plates. Degradation rate of absorbable plate is closely related to the chance of infection. Low degradation is associated with increased accumulation of plate debris, which in turn can increase the chance of infection. Predisposing factors for absorbable plate-related infection include the presence of maxillary sinusitis, plate proximity to incision site, and use of tobacco and significant amount of alcohol. Using short screws in fixating maxillary fracture accompanied maxillary sinusitis will increase the rate of infection. Avoiding fixating plates near the incision site will also minimize infection. Close observation until complete absorption of the plate is crucial, especially those who are smokers or heavy alcoholics. The management of plate infection is varied depending on the clinical situation. Severe infections require plate removal. Wound culture and radiologic exam are essential in treatment planning.

• 대한간호학회지
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• 제46권4호
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• pp.552-561
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• 2016

Purpose: The purpose of this study was to investigate factors influencing lifetime smoking and current smoking among adolescents in South Korea. Methods: Hierarchical logistic regression was conducted based on complex sample analysis using statistics from the 10th (2014) Korea Youth Risk Behavior Web-Based Survey. The study sample comprised 72,060 adolescents aged 12 to 18. Results: The significant factors influencing adolescent lifetime smoking were female gender, older age, higher stress, higher weekly allowance, lower economic status, living apart from parents, parental smoking, sibling smoking, peer smoking, observation of school personnel smoking, and coed school compared to boys' school. The significant factors influencing adolescent current smoking were female gender, older age, higher stress, higher weekly allowance, both higher and lower economic status compared to middle economic status, living apart from parents, parental smoking, sibling smoking, peer smoking, observation of school personnel smoking, and coed school compared to boys' school. Conclusion: Factors identified in this study need to be considered in programs directed at prevention of adolescent smoking and smoking cessation programs, as well as policies.

• 한국환경보건학회지
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• 제42권3호
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• pp.224-233
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• 2016

Objectives: The purpose of this study was to evaluate the relationship between residential surroundings, such as a power plant, steel mill and petrochemical facilities, and urinary arsenic concentrations in Chungcheongnam-do Province, Korea. Methods: Stratified by fish consumption and residential district, median and maximum block sampling was applied. A total of 346 spot urine samples were speciated for $As^{5+}$, $As^{3+}$, monomethylarsonic acid(MMA), dimethylarsonic acid (DMA) and arsenobetaine (AsB). Exposure assessment was based on questionnaires including data on sex, age, current tobacco use, fish consumption, type of water consumed, and occupational category. Results: Urinary $As^{5+}+As^{3+}+MMA+DMA$ concentrations of people living in the vicinity of a power plant ($GM=50.39{\mu}g/g$) were 61% higher than those of people living in the inland area according to median block sampling. Urinary $As^{5+}+As^{3+}+MMA+DMA+AsB$ concentrations of people living in the vicinity of industrial complex area were higher than those of people living in the inland area according to block sampling by median and maximum. Conclusion: Urinary arsenic concentrations of people living in vulnerable areas such as around industrial complexes, especially power plants, were higher than those of people living in an inland area.

• Journal of Plant Biotechnology
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• 제37권3호
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• pp.250-261
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• 2010

The expression of vaccine antigens in transgenic plants has the potential to provide a convenient, stable, safe approach for oral vaccination alternative to traditional parenteral vaccines. Over the past two decades, many different vaccine antigens expressed via the plant nuclear genome have elicited appropriate immunoglobulin responses and have conferred protection upon oral delivery. Up to date, efforts to produce antigen proteins in plants have focused on potato, tobacco, tomato, banana, and seed (maize, rice, soybean, etc). The choice of promoters affects transgene transcription, resulting in changes not only in concentration, but also in the stage tissue and cell specificity of its expression. Inclusion of mucosal adjuvants during immunization with the vaccine antigen has been an important step towards the success of plant-derived vaccines. In animal and Phase I clinical trials several plant-derived vaccine antigens have been found to be safe and induce sufficiently high immune response. Future areas of research should further characterize the induction of the mucosal immune response and appropriate dosage for delivery system of animal and human vaccines. This article reviews the current status of development in the area of the use of plant for the development of oral vaccines.

• Asian Pacific Journal of Cancer Prevention
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• 제15권17호
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• pp.7235-7239
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• 2014

Cervical cancer, the third commonest cancer in women worldwide, can be prevented through early detection by cervical screening (Pap smear). The aim of this study was to investigate the attitudes and practice of cervical cancer screening among female undergraduate university students from 25 low, middle income and emerging economy countries. Using anonymous questionnaires, data were collected from 9,194 female undergraduate university students aged 18-26 years (mean age 20.9, SD=2.0) from 26 universities in 25 countries across Asia, Africa and the Americas. Overall, 11.6% of the female students indicated that they had conducted one or more times a cervical (Pap) smear test; 8.3% among 18-20 year-olds and 15.6% among 21-26 year-old students. There was considerable country variation on having had a cervical (Pap) smear test among 21-26 year-old female university students, ranging from 59.2% in Colombia and 50.9% in Barbados to 0% in India and 1.0% in Tunesia. Logistic regression showed that cervical cancer screening importance or positive attitude were highly associated with the cervical screening practice. Moreover, risky sexual behaviour and tobacco use, two cervical cancer risk factors, were associated with screening. Cervical cancer screening practices were found to be inadequate and e fforts should be made to develop programmes that can increase the uptake of cervical cancer screening.