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곽이섭,한기윤,이재은,김종남 한국운동영양학회 2023 Physical Activity and Nutrition (Phys Act Nutr) Vol.27 No.3
[Purpose] The COVID-19 pandemic and its transition into an endemic phase have profoundly impacted physical health, well-being, mental health, education, and various aspects of society, including the economy and social networks. Home confinement, social distancing, and physical inactivity have exacerbated numerous health issues, including obesity, diabetes mellitus, hypertension, hyperlipidemia, cardiovascular diseases, depression, and poor sleep quality. A systematic review has revealed significant findings: Regular aerobic programs (such as cycling or walking at an intensity of 60–80% of HR max for 20–60 minutes per session, repeated 2–3 times a week) have proven effective in improving both physical and mental health, as well as immune function. This type of physical activity has been shown to increase immunological markers, including lymphocytes, leukocytes, neutrophils, monocytes, and interleukin-6 (IL-6), while reducing low-grade inflammation. Therefore, in this study we aimed to assess the impact of tailored exercise interventions on the physical and mental health of COVID-19 patients. Based on the results, we can establish exercise intervention strategies to mitigate the negative health consequences during and after the COVID-19 pandemic. [Methods] We conducted a search of the PubMed database from January 2020 to August 2023 using predefined search terms such as “COVID-19 and post-COVID-19,” “exercise intervention and immunity,” and “mental health.” By examining references, we explored the links between exercise interventions and the mental and physical health of COVID-19 patients. [Results] A tailored, multifaceted exercise intervention should be developed and implemented to address the existing mental challenges and enhance mental health during both the pandemic and the post-COVID-19 periods. [Conclusion] Breathing exercises and respiratory support techniques, including yoga, thoracic expansion exercises, airway clearance methods, and breathing control, are likely to be beneficial.
김동인,노광래,임수호,한기윤,정제원,장두리,권형욱 한국응용곤충학회 2017 한국응용곤충학회 학술대회논문집 Vol.2017 No.04
빨간집모기(Culex pipiens)는 우리나라 도시지역에서 가장 흔하게 발견되는 모기이다. 국내에서는 아직 특별한 질병과 관련이 없지만, 일부 국가에서는 반크로프트사상충증과 전염성뇌염의 매개체이다. 따라서, 기후변화와 환경변 화에 따라 국내에서도 새로운 질병을 매개할 가능성이 있다. 이러한 이유로 모기방제기술의 필요성이 증가함에 따라 여러 부작용이 발견된 화학적 방제방법 대신, 초음파를 이용한 물리적인 방법의 방제를 하고자 하여 실험을 진행하였다. 빨간집모기의 천적인 갈색박쥐(Myotis lucifugus)가 내는 20~100kHz의 초음파대역에서 실험을 통해 모기가 기피행동을 보이는 구간을 확인하였다. 초음파 노출 직후 기피율이 가장 높게 나왔고, 시간이 지남에 따라 기피율이 낮아지는 것을 확인하였다. 실험결과 특정대역에서 높은 기피율을 나타내는 것을 확인하였다
제무성 ( Moosung Jae ),한기윤 ( Kiyoon Han ) 한국안전학회(구 한국산업안전학회) 2015 한국안전학회지 Vol.30 No.4
This study developed a Safety Culture Impact Assessment Model (SCIAM) which consists of a safety culture assessment methodology and a safety culture impact quantification methodology. The SCIAM uses safety culture impact index (SCII) to monitor the status of safety culture of the NPPs periodically and it uses relative core damage frequency (RCDF) to present the impact of safety culture on the safety of the NPPs. As a result of applying SCIAM to the reference plant (Kori 3), the standard for the healthy safety culture of the reference plant is suggested. SCIAM might contribute to improve the safety of the NPPs (Nuclear Power Plants) by monitoring the status of safety culture periodically and presenting the standard of healthy safety culture.
Chemical Compositional Characterization on Five Samples for Development of Artificial Bee Feed
김현지,이명렬,Bilal Mustafa,한기윤,이수진,권형욱 한국양봉학회 2020 韓國養蜂學會誌 Vol.35 No.4
The western honey bee, Apis mellifera L. is an essential pollinator for high yield in agriculture and provides products of economic values. Recently, the sudden decline of the bee population by numerous causes has occurred, which is called colony collapse disorder (CCD). One of the reasons in CCD, the limited nutrition in colonies declines brood rearing and shortens the lifespan of adult workers. Beekeepers need to provide artificial bee feed regularly to maintain health colony and continuity of bee-related products on apiculture. This study focuses on development of artificial bee feed, through investigation of different contents in nutritional components on five samples, namely canola pollen, mixed pollen, bee bread, MegaBee, and Test A. Among them, Test A was developed as artificial bee feed and was compared with other samples. The five samples were analyzed on free sugar, organic acid and amino acid. Sucrose content showed the largest amounts with 46.15% and 59.60% on Megabee and Test A, respectively. The Test A showed the largest account for citric acid with 92.33%. A total of 21 amino acids were detected on five samples. Among the detected 21 amino acids, proline was accounted the highest content in canola pollen, mixed pollen and bee bread with 1159.21 mg/L, 998.90 mg/L and 783.73 mg/L, respectively. Among the five samples, Test A showed the highest amount of lysine with 471.30 mg/L. Nutritional content, balance and efficiency needs to be considered for the development of artificial bee feed. This study will contribute to provide future directions on development of artificial bee feed.