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Serological study of canine H3N2 influenza virus in dogs in 2016 - 2017, Korea
Seyeon Park(Seyeon Park),In-Ohk Ouh(In-Ohk Ouh),Ju-Yeon Lee(Ju-Yeon Lee),Min-Su Cho(Min-Su Cho),Byeong Sul Kang(Byeong Sul Kang),Soo dong Cho(Soo dong Cho),Jae Young Song(Jae Young Song) 한국예방수의학회 2017 한국예방수의학회 학술대회자료집 Vol.2017 No.-
Isolation and phylogenetic analysis of swine influenza A viruses (H1N2) in Korea in 2016 - 2017
Seyeon Park(Seyeon Park),In-Ohk Ouh(In-Ohk Ouh),Ju-Yeon Lee(Ju-Yeon Lee),Min-Su Cho(Min-Su Cho),Byeong Sul Kang(Byeong Sul Kang),Soo dong Cho(Soo dong Cho),Eun-Ju Kim(Eun-Ju Kim),Yeun-Kyung Shin(Yeun- 한국예방수의학회 2017 한국예방수의학회 학술대회자료집 Vol.2017 No.-
Serological study of swine influenza A viruses in pig population in 2016 - 2017, Korea
Seyeon Park(Seyeon Park),In-Ohk Ouh(In-Ohk Ouh),Ju-Yeon Lee(Ju-Yeon Lee),Min-Su Cho(Min-Su Cho),Byeong Sul Kang(Byeong Sul Kang),Soo dong Cho(Soo dong Cho),Eun-Ju Kim(Eun-Ju Kim),Yeun-Kyung Shin(Yeun- 한국예방수의학회 2017 한국예방수의학회 학술대회자료집 Vol.2017 No.-
Fingertip Force and Muscle Activation Patterns at Varying grasp Objects
Suji Park(Suji Park),Juhyun Park(Juhyun Park),Seyeon Oh(Seyeon Oh),Chaeyeon Heo(Chaeyeon Heo),Sieun Ho(Sieun Ho),Seonhong Hwang(Seonhong Hwang) 호서대학교 기초과학연구소 2022 기초과학연구 논문집 Vol.30 No.1
In this study, we tried to collect and analyze the kinetic and neurological information such as finger-tip forces and EMG for several representative (the most commonly used) grasp movements to explore their force and muscle activation patterns based on the newly defined grasp taxonomy. Ten able-bodied (five males, five females) volunteered to participate and they performed five different grasp tasks: holding a bottle (Bottle), turning a doorknob (Knob), cutting with a knife (Knife), brushing with a toothbrush (Toothbrush), holding a thick book (Book) after we attached five force sensitive resistor (FSR) sensors on the tip of fingers and four surface electromyogram (sEMG) electrodes on the lower arm of the subject’s dominant hand. Root Mean Square (RMS) and Mean Absolute Value (MAV) from the mean maximum values of sEMG(%) and fingertip force(kgf) of all ten subjects were extracted as features. The classification from the feature dataset using convolutional neural network (CNN) was applied and analyzed the results of accuracy and repeatability. The mean maximum values of EMG and fingertip forces during five different grasp tasks, and the MAV and RMS which were extracted features from the above were compared with task pairs. They showed significant differences in comparison of four pairs of tasks which were Bottle and Knife (p = 0.005 in both MAV and RMS), Bottle and Toothbrush (p = 0.005in both MAV and RMS), Bottle and Book (p = 0.013 in both MAV and RMS), Knob and Toothbrush (p = 0.047 in MAV and p = 0.028 in RMS). The classification accuracy of the Bottle grasp task was the largest at 60% (true positive predictive rate is 60% and false postive rate is 40%), while the other tasks showed an 30-40% of accuracy. Repeatability was 60% in the Bottle task and 50% in the Knob task, and those of the other tasks were ranged 30-40%. Overall, it is believed that the small number of samples in the study is the main reason of the low accuracy and repeatability of the classification. A total of nine variables (four sEMG and five forces) showed different significances in paired mean comparisons for five grasp tasks (graspping a bottle, turning a doorknob, cutting with a knife, brushing teeth with a toothbrush, holding a thick book). A comparison of the reduced variable from feature extraction also showed different classification accuracy for five grasp tasks.
An association of urinary sodium-potassium ratio with insulin resistance among Korean adults
Park, Yeong Mi,Kwock, Chang Keun,Park, Seyeon,Eicher-Miller, Heather A.,Yang, Yoon Jung The Korean Nutrition Society 2018 Nutrition Research and Practice Vol.12 No.5
BACKGROUND/OBJECTIVES: This study was conducted to investigate the effects of sodium-potassium ratio on insulin resistance and sensitivity in Korean adults. SUBJECTS/METHODS: Subjects were 3,722 adults (1,632 men and 2,090 women) aged 40-69 years participating in the Korean genome and epidemiology study_Ansan and Ansung study. Insulin resistance was assessed using homeostasis model assessment of insulin resistance (HoMA-IR) and fasting insulin, and insulin sensitivity was assessed by using the quantitative insulin sensitivity check index (QUICKI). The 24-h urinary sodium and potassium excretion were estimated from spot urinary samples using the Tanaka formula. The generalized linear model was applied to determine the association between urinary sodium-potassium ratio and insulin resistance. RESULTS: HoMA-IR (P-value = 0.029, P-trend = 0.008) and fasting insulin (P-value = 0.017, P-trend = 0.005) levels were positively associated with 24-h estimated urinary sodium-potassium ratio in the multivariable model. QUICKI was inversely associated with 24-h estimated urinary sodium-potassium ratio in all models (P-value = 0.0002, P-trend < 0.0001 in the multivariate model). CONCLUSION: The present study suggests that high sodium-potassium ratio is related to high insulin resistance and low insulin sensitivity. Decreasing sodium intake and increasing potassium intake are important for maintaining insulin sensitivity. Further studies are needed to confirm these findings in longitudinal studies.
Scrambling in Korean Parasitic Gap Constructions and its Cross-linguistic Implications
Seyeon Park(박세연) 한국언어학회 2018 언어 Vol.43 No.1
Parasitic gap constructions have been observed to fall into two subtypes across languages: adjunct clause type and subject clause type. Previous research on Korean parasitic gaps has either assumed that both subtypes exist in Korean as in English, or analyzed the movement properties of scrambling as in Japanese. This paper is about the argument that the previous studies have not considered the specific properties of the clausal boundaries and scrambling patterns in Korean. In this paper, the distinct properties of adjunct clauses and subject clauses in Korean were examined to see how their differences structurally affect the pattern of scrambling. I propose that the subject clause type of the parasitic gap construction exists in Korean, but what has been analyzed as the adjunct clause in the literature should be analyzed as containing a null pronoun. This claim is empirically supported by comparing the properties of a parasitic gap with those of a null pronoun. On the basis of the observed pattern in Korean parasitic gap constructions, I discuss its cross-linguistic implications on the parasitic gap hierarchy proposed by Culicover (2017).
Park Seyeon,Ahn Jisoo,Yoon Sung Uk,추기석,Kim Hye-Jin,Chung Minwoo,김희영 대한마취통증의학회 2021 Korean Journal of Anesthesiology Vol.74 No.4
Background: To determine the correct size of endotracheal tubes (ETTs) for endotracheal intubation of pediatric patients, new methods have been investigated. Although the three-dimensional (3D) printing technology has been successful in the field of surgery, there are not many studies in the field of anesthesia. The purpose of this study was to evaluate the accuracy of a 3D airway model for prediction of the correct ETT size, and compare the results with a conventional age-based formula in pediatric patients.Methods: Thirty-five pediatric patients under six years of age who were scheduled for congenital heart surgery were enrolled. In the pre-anesthetic period, the patient’s computed tomography (CT) images were converted to Standard Triangle Language (STL) files using the 3D conversion program. A Fused Deposition Modelling (FDM) type 3D printer was used to print 3D airway models from the sub-glottis to the upper carina. ETT size was selected by inserting various sized cuffed-ETTs to a printed 3D airway model.Results: The 3D method selected the correct ETT size in 21 out of 35 pediatric patients (60%), whereas the age-based formula selected the correct ETT size in 9 patients (26%).Conclusions: Prediction of the correct size of ETTs using a printed 3D airway model demonstrated better results than the age-based formula. This suggests that the selection of ETT size using a printed 3D airway model may be feasible for helping minimize re-intubation attempts and complications in patients with congenital heart disease and/or those with an abnormal range of growth and development.
Inhibition of β-catenin/Tcf signaling by flavonoids
Park, Seyeon,Choi, Jaemin Wiley Subscription Services, Inc., A Wiley Company 2010 Journal of cellular biochemistry Vol.110 No.6
<P>Functional activation of β-catenin/T-cell factor (Tcf) signaling has been implicated in human carcinogenesis. We identified the inhibitory effect of various polyphenolic flavonoid compounds against β-catenin/Tcf signaling in β-catenin-activated cells. Genistein, kaempferol, isorhamnentin, and baicalein inhibited the transcriptional activity of β-catenin/Tcf in HEK293 cells transiently transfected with a constitutively active mutant β-catenin gene. To investigate the inhibitory mechanism, electrophoresis mobility shift assay, immunoprecipitation, and Western blot experiments were performed. The shift assay showed that the binding of Tcf complexes with its specific DNA-binding sites was suppressed by four kinds of flavonoids. Immunoprecipitation analysis also showed that the binding of β-catenin to Tcf-4 was also disrupted by these flavonoids. Western blot analysis showed a decreased level of β-catenin in nucleus caused by genistein. Genistein also decreased phosphorylation of Akt and GSK3β. Taken together, these results suggest that the polyphenolic flavonoids genistein, kaempferol, isorhamnentin, and baicalein are negative regulators of β-catenin/Tcf signaling and their inhibitory mechanism is related to the decreased binding of β-catenin/Tcf complexes to consensus DNA. J. Cell. Biochem. 110: 1376–1385, 2010. © 2010 Wiley-Liss, Inc.</P>