http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Han, Jee Eun,Kim, Ji-Eun,Jo, Hayun,Eun, Jong-Su,Lee, Chorong,Kim, Ji Hyung,Lee, Kyeong-Jun,Kim, Jae-Won Elsevier 2019 Aquaculture Vol.512 No.-
<P><B>Abstract</B></P> <P>In this study, co-infection of white spot syndrome virus (WSSV) and AHPND-<I>Vibrio parahaemolyticus</I> (<I>Vp</I> <SUB>AHPND</SUB>), was studied in juvenile <I>Penaeus vannamei</I> under the laboratory condition. Experimental shrimp were divided into 4 groups (group 1: WSSV only; group 2: <I>Vp</I> <SUB>AHPND</SUB> only; group 3: WSSV + <I>Vp</I> <SUB>AHPND</SUB>; group 4: not challenged), and for the co-infection, shrimp were challenged with dual pathogens (initially exposed to WSSV and subsequently exposed to <I>Vp</I> <SUB>AHPND</SUB>). During the experiments, we observed an increased mortality rate in the co-infection group (group 3, <I>N</I> = 7/20 shrimp at day 2 post-infection [p.i.], and <I>N</I> = 15/20 shrimp at day 3 p.i.) than other groups (<I>N</I> = 1/20 shrimp at day 3 p.i., and <I>N</I> = 10/20 shrimp at day 4 p.i. in group 2; no mortalities in group 1 and 4). Also, we found obvious differences in WSSV infection among groups; strong WSSV-positives were detected by immunohistochemistry examination (brown coloration) and qPCR assay (the copy numbers between 2.0 × 10<SUP>3</SUP>–3.7 × 10<SUP>4</SUP>) in the co-infection group on the termination day, but these were not detected in the other groups. In addition, there were prominent differences in the histopathology of the hepatopancreas of surviving shrimp among groups; shrimp of the co-infection group showed typical histopathology signs of AHPND in the hepatopancreas, with sloughing of hepatopancreatic tubule epithelial cells (G4) on the termination day, but the hepatopancreas in shrimp of the other groups appeared normal. This study demonstrated that shrimp initially exposed to WSSV allows <I>Vp</I> <SUB>AHPND</SUB> to cause faster and higher mortality than shrimp infected with <I>Vp</I> <SUB>AHPND</SUB> alone, and also leads to severe WSSV infection, indicating that WSSV is a risk factor for <I>Vp</I> <SUB>AHPND</SUB> in ponds. Therefore, shrimp farmers should pay attention to the management of co-infection in the pond.</P> <P><B>Highlights</B></P> <P> <UL> <LI> This is the first study examining the co-infection of WSSV and <I>Vp<SUB>AHPND</SUB> </I> by the shrimp laboratory assay. </LI> <LI> First, the mortality of shrimp was increased by the co-infection with WSSV and <I>Vp<SUB>AHPND</SUB> </I> than by the single infection. </LI> <LI> Also, the level of WSSV infection was increased after the <I>Vp<SUB>AHPND</SUB> </I> infection, confirmed by the immunohistochemistry examination and the qPCR. </LI> <LI> Additionally, shrimp initially exposed to WSSV were hardly recovered from the <I>Vp<SUB>AHPND</SUB> </I>, confirmed by the histopathology examination. </LI> <LI> To sum up, these findings demonstrate that WSSV infection is a risk factor for <I>Vp<SUB>AHPND</SUB> </I> in shrimp ponds. </LI> </UL> </P>
시험불안, 사회불안이 간호대학생의 섭식 태도에 미치는 영향
정송빈(Song bin Jeong),최수정(Sujeong Choi),하예림(Yerim Ha),조문경(Munkyung Cho),홍선아(Seona Hong),조수미(Sumi Jo),윤지수(Ji Su Yoon),최정은(Jung eun Choi),조하윤(Hayun Cho),차효성(Hyosung Cha) 한국자료분석학회 2023 Journal of the Korean Data Analysis Society Vol.25 No.2
본 연구의 목적은 간호대학생의 시험불안, 사회불안, 섭식 태도 정도를 확인하고 섭식 태도에 영향을 미치는 요인을 규명하는 것이다. 연구 대상은 경기도에 소재 1∼3학년 간호대학생 160명이며, 자료수집은 2022년 5월 27일부터 6월 14일까지 시행되었다. 수집된 자료는 t-검정, 분산분석, Pearson 상관계수, 다중회귀 분석을 시행하였다. 연구결과, 시험불안은 평균 39.13±11.72점, 사회불안은 평균 32.21±11.63점, 섭식 태도는 61.29±10.06점으로 나타났다. 섭식 태도는 성별(t=-2.31, p=.022), BMI(F=5.67, p=.004), 카페인 섭취 여부(t=-3.46, p<.001), 학업 만족도(F=4.23, p=.016)에 따라 유의한 차이를 보였으며, 시험불안(r=.285, p<.001), 사회불안(r=.266, p<.001)과 유의한 상관관계가 있었다. 간호대학생의 섭식 태도는 남학생에 비해 여학생(β=.23, p=.002), BMI가 저체중인 군보다 정상 군(β=.34, p=.001)과 과체중이상 군(β=.43, p<.001), 카페인을 섭취하지 않는 군에 비해 섭취하는 군(β=.23, p=.002), 시험불안이 높을수록(β=.18, p=.026), 사회불안이 높을수록(β=.16, p=.049) 부정적이었고, 해당 모형의 설명력은 26.6%였다. 본 연구 결과를 토대로 간호대학 여학생을 대상으로 올바른 신체 이미지 형성을 위한 학교와 지역사회 차원의 다각적 접근이 필요하며, 시험불안 및 사회불안을 낮출 수 있도록 간호대학생을 위한 심리적 지지 프로그램 개발 및 교육 현장에서 적용이 고려되어야 한다. The purpose of this study was to identify the status of test anxiety, social anxiety, and eating attitudes among nursing students and the factors that affect their eating attitudes. The study’s subjects were 160 nursing students in grades 1 to 3 located in Gyeonggi-do, and data collection was conducted from May 27 to June 14, 2022. The collected data were subjected to t-test, ANOVA, Pearson's correlation coefficient, and multiple regression analysis. Eating attitudes showed significant differences according to gender(t=-2.31, p=.022), BMI(F=5.67, p=.004), caffeine intake(t=-3.46, p<.001), and academic satisfaction(F=4.23, p=.016), and were significantly correlated with test anxiety(r=.285, p<.001) and social anxiety(r=.266, p<.001). The predictors of eating attitudes of nursing students were gender (β=.23, p=.002), BMI (18.5kg/m2∼22.9kg/m2, β=.34, p=.001; ≥23kg/m2, β=.43, p<.001), caffeine intake (β=.23, p=.002), test anxiety (β=.18, p=.026), and social anxiety (=β.16, p=.049) and the model’s explanatory power was 26.6%. Based on this study’s results, it is necessary to take a multilateral approach at the school and community levels to form a healthy body image for female nursing students. Furthermore, the development of a psychological support program for nursing students and its application in the educational field should be considered to reduce nursing students’ test anxiety and social anxiety.