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이혜미,박상진,이혜미 대한마취통증의학회 2017 Anesthesia and pain medicine Vol.12 No.2
Airway management is challenging during general anesthesia particularly in small infants. Airway obstruction is prone to occur in premature infants during general anesthesia due to several reasons. We report a case of airway obstruction occurred during the induction of general anesthesia in a 2-month-old infant. Several attempts at endotracheal intubation with positive pressure ventilation resulted in repeated patterns of no end-tidal carbon dioxide output after each trial of endotracheal intubation, but it was reappeared after extubation. However, anesthetic induction with self-respiration and gentle assistance with manual bagging led to a successful intubation. This case was explained by hydromechanics in a collapsible premature airway.
이혜미,박정한,김성희,김종연 한국모자보건학회 2009 한국모자보건학회지 Vol.13 No.2
Objectives: Hyperuricemia is known to be a risk factor for cardiovascular disease. The variables related to metabolic syndrome(MS), as well as other cardiovascular risk factors such as serum uric acid, differ according to gender. The study was performed to assess the relationship of serum uric acid (SUA) with metabolic syndrome in middle- aged healthy women and observed the patterns of those association in pre- and post- menopausal status. Methods: The 757 women aged over 40 years who had visit for Health examination were enrolled and divided into four groups (Quartile 1:1.7~3.6 mg/dL, Quartile 2:3.7~4.2 mg/dL, Quartile 3:4.3~4.8 mg/dL, Quartile 4:4.9~7.6 mg/dL) according to their SUA level. The blood pressure, lipid profiles, fasting serum glucose, waist circumference, high sensitivity CRP and apolipoprotein were compared between the four group. The MS was defined by the modified ATP III criteria. Results: The prevalence of MS was 16.8%. There was a positive association between SUA and component of MS excepting fasting serum glucose, respectively (p<0.001). After adjustment for covariates, the risk of women in the highest quartile of SUA (4.9~ 7.6 mg/dL) had 2.14 (95% CI: 1.16~3.97) fold increase in risk of MS as compared with those who were in the lowest quartile (1.7~3.6 mg/dL). and the same patterns were observed in pre-and post menopausal status. The association between SUA and MS observed more strangely in pre-menopausal status than post-menopausal status but interaction between SUA and menopausal status was not significant. Conclusion: Our study suggests that SUA levels were independently associated with metabolic syndrome. Although the SUA level was in the normal range, the risk of metabolic syndrome was increased with an elevated serum uric acid level. However, because of the cross-sectional nature of our study, these findings should be confirmed in prospective cohort studies.
원유 유출 지역에서 자연암반과 양식 기질에 서식하는 참굴(Crassostrea gigas)의 초기 가입 특성 및 성장 비교
이혜미,윤건탁 한국해양과학기술원 2014 Ocean and Polar Research Vol.36 No.2
Macrobenthic biodiversity in the rocky intertidal areas of the Tae-an region, Republic of Korea, has decreased since the Hebei Spirit oil spill in December 2007. We aimed to investigate ecological roles of Pacific oyster (Crassostrea gigas) because recruitment and growth of oysters are critical to the recovery of damaged rocky shore ecosystem. We surveyed two sites monthly: natural rocky substrate and farming substrate, from July 2012 to January 2013 to identify and compare the changes in macrobenthic fauna. The abundance of young oysters was higher at the natural site. On the other hand, the mean height of oyster on the farming substrate was more than twice as great. The abundance of oyster at the natural site increased until October and then continuously decreased until end of study period. However, the abundance of oyster at the farming site constantly decreased from the beginning of study period. These different growth patterns might be attributable to spatial competition between oyster and a barnacle species (Balanus albicostatus) and environmental factors. At the natural site, physical stress factors including dramatic temperature changes and desiccation a few of the major factors limiting growth during aerial exposure. In addition, motile macrobenthos could be detrimental to oysters because they interrupt filter-feeding activities and hence hamper the growth of oysters. We show the higher recruitment of oysters at the natural site and healthy growth in the farming substrate are due to complicated differences in physical and biological stress factors.
이혜미,Ui-Jin Choi,김희원,이진석 대한화학회 2020 Bulletin of the Korean Chemical Society Vol.41 No.1
The influence of precursors on the growth of organic films has been studied intensively, but research on their binding energy-dependent growth behaviors and surface properties has remained an undeveloped field. Herein, we conducted molecular layer deposition of zincone films on two metal oxide substrates, SiO2 and Al2O3, and investigated the binding energy-dependent growth behaviors and surface properties of the films experimentally. We also performed density functional theory calculations to determine the molecular geometries and surface binding energies of the films on each substrate. We established that the growth and surface characteristics of the films in the initial stages of deposition were strongly influenced by their surface binding energies, which depended on the substrate.