PURPOSES : This study is to analyze factors affecting improper parking behaviors in a perspective of personal mobility users. Detailed purposes are as follows. Firstly, exogenous and endogenous latent variables were set. Secondly, structural equation model were constructed. Hypothesis for the structural equation model were established. Then model’s goodness of fit was analyzed and following the result model was modified. Lastly, factors affecting improper personal mobility parking behavior was found out. METHODS : Based on the literature review, exogenous and endogenous latent variables were set. Correlation between latent variables and their observed variables was defined to build structural equation model. According to the model hypothesis was established. In order to collect data, survey was conducted on personal mobility users. Model’s goodness fit was verified and the model was modified. Lastly in order to find out the factors affecting improper personal mobility parking behavior path analysis was conducted. RESULTS : Based on literature review, based on 6 of latent variables the structural equation model was made. Survey was conducted on 341 participants who has used personal mobility at least once based on Likert 5-point scale. Out of 341 responses 22 responses considered as careless responses were removed. As a result of analysis of structural equation model, it turned out that ‘ease of transfer’ had a positive effect on improper parking of personal mobility meanwhile ‘convenience’ and ‘road condition’ had a negative effect. CONCLUSIONS : It was concluded that the proximity and accessibility to the transfer facility could be important when installing personal mobility parking lot as improper parking behavior of personal mobility users could be affected by ease of transfer to other traffic mode. Also, interval of parking lots, location and its road condition should be considered in order to make it convenient for users to find parking lot and to encourage them to use it more often.

Purpose: The purpose of this study is to understand the nature of the health promotion behavior of the high-risk group of cardiovascular disease among large-scale industrial manufacturing workers. Method: The subjects of this study were 11 workers at high-risk of cardiovascular disease with a Framingham Risk Score (FRS) score of 10% or more among workers at large-scale workplace in Gyeongsangbukdo area, and the data collection period is from July 1 to September 11, 2022. The interview data were inductively analyzed using the qualitative content analysis method used by Elo and Kyngas (2008). Result: Participants' awareness of their own health status and knowledge of cardiovascular disease were low, and there were more obstacles than benefits to health behavior. The process and method of realizing and practicing health care were also different. As a result of qualitative content analysis, 42 semantic units, 12 subcategories, and 3 upper categories were derived. The health promotion behavior of workers at high-risk for cardiovascular disease was categorized into ‘Awareness of health conditions’, ‘Obstacles to health care behavior’, ‘Health care practice process’. Conclusion: Since most of the workers spend a lot of time at work, it is necessary to understand the health care of high-risk workers with cardiovascular disease, so a qualitative study using participatory observation methods to observe workers’ work sites is recommended.

본 연구는 OECD TG No. 458, 22Rv1/MMTV_GR-KO 전사 활성화 분석법을 포함한 세포 기반 분석법을 사용하 여 식품 및 생활용품에 포함된 파라벤과 트리클로산의 인 간 안드로겐 수용체를 매개하는 내분비계 교란 가능성을 확인하는 것을 목표로 한다. 4가지 파라벤(메틸-, 에틸-, 프 로필-, 부틸-)은 OECD TG No.458에서 AR 길항제로 확 인된 반면, 파라벤의 AR 길항 효과는 S9 간 분획물이 있 는 경우 나타나지 않았다. 트리클로산 역시 AR 길항제로 분류되었으며, 트리클로산에 의해 유도된 AR 길항 효과 는 S9 간 분획물이 존재할 때 제 1상+2상 대사에서 유의 하게 감소되었다. 파라벤과 트리클로산에 의해 유도되는 AR 길항 기전은 세포질 내 AR 이량화를 차단하여, 리간 드 결합 AR이 핵으로의 전위를 억제함으로써 AR 매개 내분비 교란 효과를 나타냈다. 이러한 결과는 4가지 파라 벤과 트리클로산이 AR 이량화 저해를 통한 AR 길항 효 과를 나타내는 AR 매개 내분비 교란 가능성을 가지고 있 으나, 간 대사 효소가 존재할 경우 내분비 교란 효과는 감 소됨을 시사한다.

본 논문은 아시아에서 돈육 생산과 소비의 강국인 중국, 일본, 한국 3개국의 과거와 현재 돈육 산업을 조사하고 향후 돈육 생산과 소비를 예측하는 것을 목적으로 한다. 중국은 경제 시스템 변화와 가속화된 경제 성장으로 돈육의 생산과 소비에서 높은 순위를 차지할 수 있었고, 양돈 산업은 계속 발전할 것이며, 생산과 소비는 계속 증가할 것으로 예상된다. 일본의 돈육 생산량은 오랫동안 꾸준히 감소해 왔다. 일본은 돈육 수입량이 많아 순위가 높지만 수입량에 비해 소비가 크지 않아 수입량은 점차 줄어들 것으로 예상된다. 한국은 양돈산업의 발달과 대규모 농장 운영의 확대로 돈육 생산이 발달했고, 이를 통해 양돈 생산 분야에서 높은 순위를 차지하고 있다. 돈육의 소비도 지속적으로 증가하고 있다. 농업 부문의 경제적 측면에서는 돈육 생산과 소비의 비율이 계속 증가하고 있다. 중국, 일본, 한국의 돈육 생산과 소비는 농업부문뿐만 아니라 세계 경제에도 상당한 영향을 미칠 것이다.

The purpose of this study was to evaluate the effect of nutrition education on dietary knowledge, dietary attitudes, and dietary behavior of elderly by analyzing changes before and after nutrition education. This study was conducted in Seoul from March 2022 to December 2022 for 50 elderly (6 male, 44 female) who participated in nutrition education for 8 weeks at three senior welfare centers (Seodaemun, Seongbuk, Jongno). A total of 35 responses were used in the final analysis. Statistical analysis was conducted using descriptive statistics, paired t-test, and Wilcoxon’s signed rank test by age, hypertension, and dislipidemia to find effect of nutrition education on their nutritional knowledge, dietary attitudes, and dietary behavior. Results showed that nutrition education had a significant effect on the elderly. In particular, for those with chronic diseases such as hypertension and dislipidemia, the difference after education was significant, indicating significant changes in dietary habits. This study is expected to provide basic data for the development of a systematic nutrition education program for the elderly in the future.

월출산국립공원 내에 위치한 남생이(Mauremys reevesii) 대체서식지에서 사육 중인 남생이 15개체(암컷 6, 수컷 9)를 대상으로 개체 간 구애와 공격 행동을 관찰하여 사회적 상호작용을 알아보고자 하였다. 이를 위하여 2020년 5월 18일부터 2020년 10월 19일까지 연구지역에 CCTV를 설치하여 매주 3일(24시간/일), 총 64일 동안 녹화하였고 시간 당 10분 간격으로 분석하였다. 남생이의 구애행동은 총 884회 관찰되었고 수컷은 체중이 가장 가벼운 암컷(3회)보 다 가장 무거운 암컷(357회)에게 더 많은 빈도의 구애행동을 하였다. 남생이의 공격행동은 총 259회 관찰되었으며 암컷-암컷 간 30회, 수컷-수컷은 81회, 암컷-수컷은 148회 관찰되었다. 이를 바탕으로 파악한 우열관계는 전반적으로 암컷이 수컷보다 더 높게 나타났으며, 몸 크기가 클수록 순위가 높게 나타났다. 본 연구는 국내 최초로 남생이의 구애행동 빈도를 통해 번식가능성이 높은 개체를 확인하고 공격 행동에 따른 우열관계를 파악하였다. 연구결과는 멸종위기에 처한 남생이의 관리 및 보전을 위한 행동학적 기초 자료로 활용될 수 있으며, 남생이의 사회구조를 이해하는 데 도움이 될 것이다.

PURPOSES : The purpose of this study is to evaluate the effectiveness of self-luminescent road markings using driving simulation. METHODS : In this study, a driving simulation was conducted to evaluate the effectiveness of self-luminescent road markings. The details of this study are as follows. Highway sections were categorized as tunnels, tunnel approaches, bridges, merging areas, mainlines, and curbs. The luminance of the existing road markings was collected through field measurements. The luminance of the self-luminescent road markings was collected through experimental measurements. The luminance of the road markings is converted into a brightness ratio to be applied to the driving simulation. Road facilities at night were visualized during the driving simulation. Driving simulation was tested by 30 participants. Each participant rated the visibility perception of both the road markings ahead of 90 m with a 5-point scale. The log data generated from the driving simulation tests were analyzed. RESULTS : The luminance of the existing road markings and self-luminescent road markings was measured. The luminance of the existing and lab-based road markings was converted into a brightness ratio. The road facilities of highway sections were investigated for driving simulations. The driving simulation was tested by 30 participants. Visibility perception ratings and log data from the driving simulation were analyzed. The average of visibility point increased from 1.01 to 4.63 when self-luminescent road markings were added to the existing road markings. The average speed also increased when self-luminescent road markings were added to existing road markings. CONCLUSIONS : In conclusion, self-luminescent road markings can improve the visibility of road markings and driving speed, particularly in highway sections where driving speed decreases owing to low visibility.

스마트농업의 활성화를 위해서는 농업환경 데이터의 관측과 모델 그리고 통계자료의 상호운영성 확보가 중요하므로, 이를 위한 격자체계의 적용방안을 탐색하고자 한다. 국내외 격자체계 표준에 대한 사례조사와 농업분야의 격자표준 적용사례조사를 벤치마킹하고 국립농업과학원과 상위기관의 표준현황을 살펴보고, 농업환경 공간정보의 목록과 분류체계를 구축한 후, 사용자 요구사항을 파악하기 위한 설문을 실시하여 적정한 격자 크기를 선정하였다. 농업환경 공간정보의 공유와 활용을 위하여 국토지리 정보원의 기관표준을 차용하여 군 이하 소규모 지역은 10m, 광역시･도는 100m, 농촌경관 목적으로는 500m, 전국은 1km 격자 크기로 안을 제시하였고 원활한 표준 적용을 위한 전략을 제안하고, 현장 조사 및 관측 결과를 격자로 변환할 수 있도록 오픈소스 기반의 변환 툴을 개발하여 격자표준 적용 용이성과 시간 절약성을 확보하였다.

이 연구의 목적은 공공기관이 스마트시티 사업을 수행함에 있어 어느 정도의 수준과 역량을 보유하고 있는지 판단하기 위한 수준진단 프레임워크를 수립하는 것이다. 이러한 연구목적 달성을 위해 기존의 지자체 GIS수준평가 방법과 국토부의 스마트시 티 인증체계 기준, 미래사회의 변화 모습 등 다양한 요소를 검토하여 최종적으로는 스마트시티 인프라역량, 기술 및 데이터 보유역 량, 연계통합역량, 미래의 스마트시티 정책수용역량 등 4개의 분야의 총 50개 세부 항목을 도출하고, 이를 계량화시킬 수 있는 틀을 마련하였다. 이 프레임워크를 공공기관 A, B, C에 적용한 결과를 상호비교하였다. 본 연구에서 제시한 스마트시티 사업수행 수준진단 틀은 각 기관에서 시간이 흐른 후에 역량 변화에 활용될 수도 있고, 각 기관의 특성에 맞게 일부 세부항목을 변경하여 활용될 수 있을 것이며, 각 기관이 스마트시티 분야의 활동계획과 전략을 수립하기 위해, SWOT 분석 대신 활용할 수 있을 것이다

The purpose of this study is to monitor the pesticide residues in frozen fruits and vegetables distributed and sold in online and offline markets in Korea. For the study, 107 samples of 34 types of frozen fruits and vegetables were examined, and a total of 341 pesticide residues were analyzed by using multiclass pesticide multiresidue methods of the Korean Food Code. As a result, pesticide residues were detected from 16 of 64 frozen fruits samples and 15 of 43 frozen vegetables samples. Conclusively, residues were detected from 31 samples in total, showing a detection rate of 29.0%. Specifically, pyridaben exceeded the Maximum Residue Limits (MRLs) based on the Positive list system (PLS) in one of the frozen radish leaves, and the violation rate was 0.9%. Detection on frozen fruits and vegetables was made 23 times for 11 types and 36 times for 21 types. In total, 28 types of pesticide residues were detected 59 times. Fungicides were detected the most in frozen fruits, while insecticides were detected the most in frozen vegetables. The most detected pesticides were the insecticide, acaricide chlorfenapyr (5) and the fungicide boscalid (5). Chlorfenapyr was detected only in frozen vegetables, and boscalid was detected in frozen fruits except one.