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Zoster-associated limb paresis presenting as femoral neuropathy
Hwang, Inha,Yun, UnKyu,Bae, Heewon,Han, Jeong Ho,Ha, Sang-Won,Kim, Doo-eung The Korean Society of Clinical Neurophysiology 2019 Annals of Clinical Neurophysiology Vol.21 No.1
Zoster-associated limb paresis is a relatively uncommon complication of herpes zoster that is characterized by focal motor weakness. Awareness of this disorder is important to avoid unnecessary invasive investigations and to ensure appropriate treatment. We report a case of a herpes zoster involving the femoral nerve.
Zoster-associated limb paresis presenting as femoral neuropathy
Inha Hwang,UnKyu Yun,Heewon Bae,Jeong Ho Han,Sang-Won Ha,Doo-eung Kim 대한임상신경생리학회 2019 Annals of Clinical Neurophysiology Vol.21 No.1
Zoster-associated limb paresis is a relatively uncommon complication of herpes zoster that is characterized by focal motor weakness. Awareness of this disorder is important to avoid unnecessary invasive investigations and to ensure appropriate treatment. We report a case of a herpes zoster involving the femoral nerve.
정대호,Hwang Inha,손정익 한국원예학회 2022 Horticulture, Environment, and Biotechnology Vol.63 No.6
CO2 is usually supplied to the bottom of crops in greenhouses. However, optimal CO 2 enrichment positions may diff er depending on plant architecture and cultivation conditions. The objective of this study was to estimate the photosynthesis of greenhouse-grown mangoes ( Mangifera indica L. “Irwin”) depending on the vertical position of CO 2 enrichment using a three-dimensional plant model and ray-tracing simulation. Twenty-seven CO 2 sensors were installed at each vertex of a grid around a 4-year-old mango tree. The distributions of CO 2 concentration were measured under four diff erent CO 2 treatments: without CO 2 enrichment (control) and with CO 2 enrichment at 0.5 m (E0.5), 1.0 m (E1.0), and 1.5 m (E1.5). The intercepted light intensity of the plants was estimated using ray-tracing simulations. The leaf photosynthetic rates were calculated using the Faquhar, von Caemmerer, and Berry models. The accumulated CO 2 consumptions from 08:00 to 10:30 were obtained under the four CO 2 treatments. The CO 2 concentrations in E0.5, E1.0, and E1.5 were 45.6%, 48.4%, and 153.6% higher than that of the control (544.6, 455.8, and 406.3 μmol CO 2·mol–1, respectively). Using the leaf photosynthesis model at each position, the CO 2 consumptions per plant in E0.5, E1.0, and E1.5 were estimated to be 50.0%, 63.6%, and 49.8% higher, respectively, than that of the control (1.76 g CO 2·h–1). The highest CO 2 consumption per plant was estimated to be 8.82 g CO2, obtained by enriching CO 2 at 1.2 m. The results confi rm that CO 2 enrichment at adequate positions can enhance crop photosynthesis and CO 2 utilization effi ciency in greenhouses.
Longitudinal Trends in Sleep and Related Factors Among South Korean Adults From 2009 to 2018
윤지은,오단아,Inha Hwang,박정아,임희진,김대영,양광익,주민경,윤창호 대한신경과학회 2023 Journal of Clinical Neurology Vol.19 No.4
Background and Purpose Excess or insufficient sleep, irregular sleep-wake patterns, and an extreme early or late chronotypes adversely impact physical and mental health. Changes in sleep characteristics should therefore be tracked, and factors that contribute to poor sleep should be identified. We investigated the changes in sleep patterns among South Korean adults during 2009–2018. Methods Using data of a representative sample of South Korean adults from the 2009 (n= 2,658, 48.5% males; age=44.5±15.0 years old [mean±standard deviation], age range=19–86 years) and 2018 (n=2,389, 49.1% males; age=47.9±16.3 years, age range=19–92 years) Korean Headache-Sleep Study, we explored changes in sleep timing, sleep duration, chronotype, and social jetlag (SJL). Logistic regression analysis was used to examine the association between average sleep duration and depression. Results From 2009 to 2018, bedtimes were advanced by 10 and 25 min on workdays and free days, respectively. Meanwhile, wake-up times were advanced by 13 min and delayed by 12 min on workdays and free days, respectively. The average sleep duration significantly decreased from 7.45 h to 7.13 h. The prevalence of short sleep duration (<7 h) increased, whereas that of long sleep duration (≥8 h) decreased. A circadian preference toward eveningness and SJL increased. The prevalence of depression increased from 4.6% to 8.4%, and there were significant reverse J-shaped and U-shaped associations between average sleep duration and depression in 2009 and 2018, respectively. Conclusions Changes in sleep patterns and the association between sleep duration and depressive mood were determined from a representative sample of the South Korean adult population. Interventions to modify sleep behaviors might improve public health.