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- 저자 : 김민정(MinJeong Kim) (검색결과 238 건)
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김민정,김홍기,Kim, Minjeong,Kim, Honggie 한국통계학회 2017 응용통계연구 Vol.30 No.4
The Ghosh and Kim zero-altered distribution model is used to analyze count data that have too many or too few zeros. The dispersion type parameter ${\delta}$ in the zero-altered distribution model consists of mean, variance and zero probability and has two forms depending on the relation between ${\mu}$ and ${\sigma}^2$. We derived the influence function on ${\delta}$ when ${\sigma}^2{\geq}{\mu}$. To show the validity of the influence function, we used the Census data on the number of births of married women in Korea to compare the estimated changes in ${\delta}$ using this function with those obtained using the direct deletion method. The result proved that the obtained influence function is very accurate in estimating changes in ${\delta}$ when an observation is deleted.
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염증성 장 질환에서 전침을 중심으로 한 미주신경자극에 대한 고찰
김민정,김동원,박채현,박재우,고석재,Minjeong Kim,Dongwon Kim,Chaehyun Park,Jae-Woo Park,Seok-Jae Ko 대한한방내과학회 2023 대한한방내과학회지 Vol.44 No.3
Inflammatory bowel disease (IBD) is defined as a chronic inflammatory-mediated disease that causes ulceration and inflammation in the gastrointestinal tract. Among most patients, the course of chronic inflammation repeatedly shows intermittent exacerbations and alternating remissions. However, despite the various therapeutic options to relieve symptoms, such as corticosteroids, TNF-α inhibitors, and antibiotic drugs, there is no known cure for IBD. Nonetheless, previous research has revealed that the autonomic nervous system is involved in the pathophysiology of IBD. In this study, we reviewed clinical trials confirming the therapeutic effect of vagus nerve stimulation (VNS) on IBD in vivo. We searched in vivo and human studies on Pubmed using keywords combined with "vagus nerve stimulation", "VNS", and "inflammatory bowel disease". All studies included in this review reported that direct VNS is effective in relieving symptoms of IBD and has no severe adverse effects. The most frequently stimulated site was the unilateral cervical vagus nerve area, and parameters for stimulation were set as 5-20 Hz. Based on the results, we aim to summarize the evidence for the efficacy of VNS on IBD and suggest the possibility of auricular electroacupuncture treatment as a therapeutic option for IBD.
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Si 슬러지의 첨가가 경량지오폴리머 물성에 미치는 영향
김민정,김유택,Kim, Minjeong,Kim, Yootaek 한국결정성장학회 2019 한국결정성장학회지 Vol.29 No.6
Lightweight geopolymers were fabricated with non-milled IGCC slag and Si sludge as a bloating material. The relationship between addition amount of Si sludge and physical/chemical properties of lightweight geopolymers was investigated. When the geopolymers were made by mixing IGCC slag, alkali activator, and more than 10 wt.% Si sludge, the temperature of the geopolymer pastes reached higher than 130℃ in a few minutes. This exothermic reaction accelerated the geopolymer reaction; however, it was difficult to make geopolymer specimens because of a rapid bloating reaction. Both compressive strength and density of the specimens tend to decrease with an addition of Si sludge; however, there was little difference in both compressive strength and density with addition of Si sludge more than 10 wt.%. Because there was a limit to get low density geopolymers by simply increasing the addition of Si sludge, the control of pore size and distribution of geopolymer is more important by controlling flow rate of the paste through the control of W/S ratio. Therefore, it is important to control process conditions, appropriate W/S ratio for the bloating than the control of Si sludge. The optimum W/S ratio was 0.20 for the addition of Si sludge less than 30 wt.% and W/S ratio should be more than 0.28 for the addition of Si sludge more than 30 wt.%, although there was no practical application in fact.
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Salmonella Gallinarum 박테리오파지의 특성
김민정,권혁무,성환우,Kim, Minjeong,Kwon, Hyuk-Moo,Sung, Haan-Woo 한국가금학회 2017 한국가금학회지 Vol.44 No.3
Bacteriophages are viruses that exclusively infect bacterial cells, and lytic bacteriophages can be used as a safe alternative to antibiotics for the prevention and treatment of animal diseases. In this study, we attempted to isolate and characterize bacteriophages for Salmonella enterica serovar Gallinarum (Salmonella Gallinarum), the causative agent of fowl typhoid in chickens. Ten bacteriophages were isolated from samples of sewage from seven poultry slaughterhouses. One of these isolate, designated as $SG{\Phi}-YS$ SP and classified in the family Myoviridae, produced plaques with seven Salmonella Gallinarum strains. However, no plaques were produced with any of the Salmonella enterica serovar Enteritidis strains tested, suggesting that this bacteriophage is Salmonella Gallinarum specific. To assess the lytic ability of $SG{\Phi}-YS$ SP against Salmonella Gallinarum, bacterial growth rates following inoculation of the bacteriophage were compared with the control. The $SG{\Phi}-YS$ SP treatment, with a multiplicity of infection of 10, reduced the growth of Salmonella Gallinarum by 2.21 log cfu/mL at 6 h, and 2.13 log cfu/mL at 9 h, suggesting that this bacteriophage isolate could be used for the prevention or treatment of Salmonella Gallinarum infection in chickens.
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사상체질에 따른 여대생의 건강 특성 분석과 BMI에 영향을 미치는 요인
김민정,이수진,Kim, Minjeong,Lee, Soojin 사상체질의학회 2018 사상체질의학회지 Vol.30 No.3
Objectives The purpose of this study was to investigate the ordinary symptoms, special symptoms and Body Mass Index (BMI) according to Sasang constitution in female college students. Also, we aimed to analyze the factors affecting BMI. Methods Forty-four female college students participated in this study. Sasang Constitution was determined by Questionnaire for Sasang Constitution Classification (QSCC) II. BMI was measured and ordinary symptoms were acqired through the questionnaire. Special symptoms was determined by Fatigue Severity Index (FSS), Premenstrual Symptom Screening Tool (PSST), ROME III, Ocular Surface Disease Index (OSDI), respectively. For statistical analysis, t-test, analysis of variance and correlation test has been used. Results There existed significant differences in ordinary symptoms and special symptoms between sasang constitutions. Taeumin had higher urine frequency than soyangin, soeumin had higher gap of feces than taeumin. Taeumin had higher BMI and ROME III score than soyangin and soeumin. They showed significant differences in ordinary symptoms and special symptoms according to BMI. Overweight and obese group is higher in water intake than low and normal group. Low weight and normal group is higher in gap of feces than overweight and obese group. High score group in PSST and ROME III showed high BMI than low score group. We analyzed the factors that affect BMI. BMI are highly correlated with systolic and diastolic blood pressure. Also, FSS, PSST, ROME III and OSDI showed high correlation with each other. Conclusion Urine frequency and gap of feces are different among sasang constitutional types. The obese group and normal group showed significant differences in water intake, gap of feces, PSST and ROME III score. It is found that factors that affecting BMI are systolic and diastolic blood pressure. These results may lead to identifying the causes and factors of obesity in female college students related to Sasang constitution.
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