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Possibility of Decreasing Incidence of Human Immunodeficiency Virus Infection in Korea
Lee Minkyeong,Park Wan Beom,Kim Eu Suk,Kim Yeonjae,Park Sang-Won,Lee Eunyoung,Oh Myoung-don,Kim Nam Joong,Kim Hong Bin,Song Kyoung-Ho,Choe Pyoeng Gyun,Kang Chang Kyung,Lee Chan Mi,Choi Yunsang,Moon So 대한감염학회 2023 Infection and Chemotherapy Vol.55 No.4
Background: The number of newly diagnosed cases of human immunodeficiency virus (HIV) infection in Korea, which had increased until 2019, has markedly decreased since the coronavirus disease 2019 pandemic started. This study evaluated whether the decrease is due to a reduction in the incidence of HIV infection and/or delayed diagnosis during the pandemic. Materials and Methods: We reviewed the medical records of 587 newly diagnosed patients with HIV infection between February 2018 and January 2022 from four general hospitals, and their characteristics were compared between the prepandemic and pandemic periods. The lapse time from infection to diagnosis was estimated using an HIV modeling tool. Results: The estimated mean times to diagnosis were 5.68 years (95% confidence interval [CI]: 4.45 - 6.51 years) and 5.41 years (95% CI: 4.09 - 7.03 years) before and during the pandemic, respectively (P = 0.016). The proportion of patients with acquired immunodeficiency syndrome-defining illnesses, expected to visit hospitals regardless of the pandemic, decreased from 17.2% before the pandemic to 11.9% during the pandemic (P = 0.086). Conclusion: The decrease in the number of newly diagnosed cases of HIV infection in Korea might have resulted from an actual decrease in the incidence of HIV infection rather than a worsening of underdiagnosis or delayed diagnosis.
Pan, Jeong Hoon,Kim, Jun Ho,Kim, Hyung Min,Lee, Eui Seop,Shin, Dong-Hoon,Kim, Seongpil,Shin, Minkyeong,Kim, Sang Ho,Lee, Jin Hyup,Kim, Young Jun Japan Society for Bioscience, Biotechnology, and A 2015 Bioscience, Biotechnology, and Biochemistry Vol.79 No.9
<P>Acetic acid has been shown to promote glycogen replenishment in skeletal muscle during exercise training. In this study, we investigated the effects of acetic acid on endurance capacity and muscle oxidative metabolism in the exercise training using in vivo mice model. In exercised mice, acetic acid induced a significant increase in endurance capacity accompanying a reduction in visceral adipose depots. Serum levels of non-esterified fatty acid and urea nitrogen were significantly lower in acetic acid-fed mice in the exercised mice. Importantly, in the mice, acetic acid significantly increased the muscle expression of key enzymes involved in fatty acid oxidation and glycolytic-to-oxidative fiber-type transformation. Taken together, these findings suggest that acetic acid improves endurance exercise capacity by promoting muscle oxidative properties, in part through the AMPK-mediated fatty acid oxidation and provide an important basis for the application of acetic acid as a major component of novel ergogenic aids.</P>
Occluded Region Detection and Image Restoration for Visual Presenter
Minkyeong Kim(김민경),JaeYeol Rheem(임재열) 대한전자공학회 2019 전자공학회논문지 Vol.56 No.1
실물화상기는 수업에서 문서를 큰 스크린에 투영하여 피드백을 주는 용도로 사용할 수 있다. 하지만 사용자의 손에 의하여 문서가 가려지는 영역이 발생함으로서 인식에 불편함이 발생한다. 이를 개선하기 위하여, 가려진 영역이 투영되도록 영상을 복구하는 알고리즘을 제안하였다. 제안된 알고리즘은 손 또는 펜에 의해 가려진 영역을 검출하고, 검출된 영역을 제거한다. 제거된 영역에 원 문서로 대체함으로서 위의 단점을 개선하였다. 하지만 문서의 어느 방향을 가리키고 있는지 인식할 필요가 있기 때문에, 흔적을 남도록 영역을 제거하는 방식을 택하였다. 완벽하게 영상을 복구하기 위해, reference 영상은 실시간으로 문서가 이동하거나 사용자가 필기를 하는 경우에 업데이트되도록 구현하였다. A visual presenter is used for projecting documents on a big screen to give a feedback in a class. Occasionally, people can not see clearly the projected image when a user’s hand blocks it. To overcome this, we propose occluded region detection and image restoration algorithm. It detects the occluded region by the hand, pens and so on, eliminates the detected region and replaces the blocked region as that of the original document image showing. But we leave the trace (vestige) to recognize the hand indicating. For restoring it perfectly, the reference image updates in real-time when the document is shifted or the user writes something new.
Studies on the formation of fruiting bodies of Wolfiporia cocos hybrid strains
Minkyeong Kim,Jae Soon Hwang,Yong Seub Shin,Woo-Sik Jo 한국버섯학회 2018 버섯 Vol.22 No.1
The cultivation of Poria cocos on tree-stumps and logs, was first described at the beginning of the 13th century. Poria cocos has been used for medicinal purposes to treat physical and mental recuperation, promote diuresis, forgetfulness and physical weakening. The artificial cultivation techniques of P. cocos was reported in China in 1957. are reported. The basic study on morphological characteristics and artificial cultivation method of Poria cocos with pine tree log buried under ground were initiated by Rural Development Administration. To widen the utilization of harvested sclerotia of Poria cocos as new food stuffs, powder of the sclerotia were used for producing new soft drinks and supplemented to wheat flour to make functional bread. ○ Bokryeong tree cultivation GB2, GB3, GB4, GB5, GB7, GB8, GB9, GB10, Bekryeong 1, Andong 1 and Andong 3. It is the result of investigation on the characteristics of the aged dates derived from the encapsulation cultivation of Bykryeong. As a result of measuring the number and weight of fruiting bodies, relatively large elongation was induced in Bokryeong No.1 and crossed strain GB4, and the L value of GB9 was measured relatively high in the skin color of fruiting body. The cut surface chromaticity was measured to be low in GB5. ○ Glass bottle production The result of inducing the aging in the glass bottle was as follows is the photograph of the pine tree in the glass bottle, and taken after removing the glass bottle. Crosses GB1-10 and Bokryeong No.1, Korea Forest Service 1104, Korea Forest Service 1105. The weight, size and chromaticity of the pine trees were investigated. As a result of measuring the number and weight of fruiting bodies, GB3 and GB4 produced comparatively large agglomerates and the fruity body skin color GB7 was high.
First Report of Six Macrofungi from Daecheongdo and Socheongdo Islands, Korea
( Minkyeong Kim ),( Jin Sung Lee ),( Jae Young Park ),( Changmu Kim ) 한국균학회 2021 Mycobiology Vol.49 No.5
Daecheongdo and Socheongdo Islands are located in the West Sea of Korea, 210km away from land, and are military border areas very close to North Korea, making them difficult to access. Although the ecosystem of the islands is relatively well preserved due to the lack of accessibility, research on fungi of the regions is insufficient. Therefore, we aimed to investigate indigenous fungi in these geographically and geopolitically constrained regions. A survey of the indigenous fungal diversity of the islands was conducted in 2018. All specimens were identified at the species level based on morphological and molecular analyses. Among them, six macrofungi―namely, Agaricus menieri, Crepidotus praecipuus, Dichomitus squalens, Hortiboletus amygdalinus, Melanoleuca friesii, and Trametes lactinea―were not previously reported in Korea. Considering that the proportion of unrecorded species is high in the survey area and period as well as the number of samples collected, similar research on adjacent islands may be necessary.