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Pediococcus spp.-fermented chicken meat for dogs
( Eunchae Lee ),( Ki-taek Nam ),( Kyung-woo Lee ),( Sang-rak Lee ) 한국축산학회 2020 한국축산학회지 Vol.62 No.1
An experiment was conducted to evaluate Pediococcus spp.-fermented chicken meat as a snack for dogs. The fermented or non-fermented snacks used in this study were prepared through the following process; meat mixtures containing 52.8% MDCM, 35.2% chicken breast meat (CBM) and 9.7% corn starch were inoculated with or without Pediococcus spp., incubated at 37℃ for 24 h and then sterilized at 121℃ for 20 min. During the 24-h fermentation, the pH of fermented chicken snack dropped rapidly with concomitant increase in number of lactic acid bacteria. The nutritional composition was not altered by fermentation. In vitro pepsin nitrogen digestibility was higher (p < 0.05) in the fermented snack compared with the non-fermented snack. Upon storage at room temperature for 14 days, bacteria grew slowly in fermented vs. non-fermented snack samples. In a palatability trial, dogs preferred non-fermented over fermented snack food. In 12-d-long feeding trial, fecal ammonia content was lowered, but fecal lactic acid content was increased in dogs fed the fermented vs. non-fermented snack food. Our study shows that the fermented MDCM-based snack exhibited good preservability upon storage, and improved in vitro nitrogen digestibility and fecal characteristics in dogs.
Associations between Alpha Angle and Herniation Pit on MRI Revisited in 185 Asymptomatic Hip Joints
Lee, Eunchae,Choi, Jung-Ah The Korean Society of Radiology 2015 KOREAN JOURNAL OF RADIOLOGY Vol.16 No.6
<P><B>Objective</B></P><P>To evaluate the association between alpha angle and herniation pit on MRI in asymptomatic hip joints and their associations with demographic variables.</P><P><B>Materials and Methods</B></P><P>Hip MRI of 185 asymptomatic hip joints of 105 adults (age 18 to 80 years) from September 2011 through December 2012 were retrospectively studied. Alpha angles were measured on oblique axial MR images by 2 observers. Herniation pit was determined by 1 observer. Size measures, prevalence, and statistical analyses were conducted regarding its association with age, gender, laterality (right or left hip). Intra- and inter-observer agreements were determined by intra-class correlation coefficient.</P><P><B>Results</B></P><P>The prevalence of herniation pit in asymptomatic hips was 21.6%. The range of alpha angle was 27.6-65.0 degrees. Seventeen and 16 out of 185 (9.1% and 8.6%) hip joints showed alpha angle of ≥ 55 degrees in first and second measurement sessions, respectively. There was no association between alpha angle ≥ 55 and presence of herniation pit. There was no association between alpha angle ≥ 55 and the size of herniation pit. Inter-observer agreement of alpha angle was 0.485 between first measurements of first vs. second observer, respectively. Intra-observer agreement of alpha angle was 0.654, respectively. Forty (21.6%) of 185 hip joints (35 of 105 patients, 33.3%) had herniation pit, with no difference according to age, gender, or laterality of hip joint.</P><P><B>Conclusion</B></P><P>There is no association between alpha angle ≥ 55 degrees and presence of herniation pit or demographic variables.</P>
이민아, 강하늘, 이수민, 이은채, 최가인, 강문희 배재대학교 자연과학연구소 2023 自然科學論文集 Vol.34 No.1
The purpose of this study was to investigate the relationship among clinical performance, clinical practice stress, and Nunchi of nursing students. Data were collected from 42 nursing students with clinical practice experience between June 11, 2023, and July 13, 2023. The data analysis was performed using the SPSS/WIN 22.0 program, and analyzed through the Mann-Whitney U-test, Kruskall-Wallis test, and Pearson correlation coefficient. The results revealed a negative correlation between clinical performance and clinical practice stress (r = -.332, p = .032), and a positive correlation between clinical performance and situational awareness (r = .663, p < .001). Therefore, to enhance the clinical performance of nursing students, multidimensional efforts are needed to reduce clinical practice stress and improve overall satisfaction with university life and situational awareness skills. 본 연구는 간호학생의 임상수행능력, 임상실습 스트레스와 눈치를 파악하고 각 변수간의 상관관계를 확인하고자 시행되었다. 연구 대상은 임상실습 경험이 있는 간호학생 42명이며, 2023년 6월 11일부터 7월 13일까지 온라인 설문을 통해 자료를 수집하였다. 자료 분석은 SPSS/WIN 22.0프로그램을 이용하였으며 Mann-whitney U-test와 Kruskall-wallis test, Pearson correlation coefficient로 분석하였다. 연구 결과 임상수행능력은 임상실습 스트레스와 음의 상관관계(r=-.332, p=.032)가 있었으며, 눈치와는 양의 상관관계(r=.663, p<.001)가 있는 것으로 나타났다. 따라서 간호학생의 임상수행능력을 높이기 위해서는 임상실습 스트레스를 낮추고 대학생활 만족도와 눈치 역량을 높이기 위한 다각도의 노력이 필요할 것이다.
DNA-barcoding을 이용한 제주도 자생 독성 식물 19종의 종 식별 및 데이터베이스 구축
권은채(Eunchae Kwon),김주영(Joo-Young Kim),장미화(Miwha Chang),이민지(Minji Lee),문서현(Seohyun Moon),이원해(Won-Hae Lee) 한국자원식물학회 2022 한국자원식물학회지 Vol.35 No.2
Food poisoning accidents caused by poisonous plants occur every year. As certain poisonous plants are mistaken for edible plants causing food poisoning, accurate species identification of poisonous plants is required. DNA barcodes suitable for species identification of poisonous plants and database that can be used for accurate species identification are necessary for their use in forensic cases. In this study, species identification of 19 poisonous plants native to Jeju Island using seven DNA barcodes (trnH-psbA, trnL-trnF, trnL intron, rbcL, matK, ITS1-ITS4, 18S rRNA) was performed to construct a database containing sequence information and DNA barcode universality. trnL-trnF barcode and ITS1-ITS4 barcode were the easiest markers for PCR amplification and sequence retrieval, and the combination of the two barcodes enabled single species identification in 18 out of 19 plants. Therefore, when an investigation of unknown poisonous plants is requested, combination of trnL-trnF and ITS1-ITS4 barcodes is considered as a primary marker for species identification. The database of recommended DNA barcodes for each poisonous plant presented in this study will be helpful in plants poisoning cases.
참외와 잎의 분류를 위한 초분광 영상의 적용 가능성 검토
이성민 ( Seongmin Lee ),조병효 ( Byeong-hyo Cho ),노은채 ( Eunchae Roh ),이강진 ( Kangjin Lee ),박가을 ( Ga-eul Park ),홍영기 ( Youngki Homg ),김경철 ( Kyoung-chul Kim ) 한국농업기계학회 2023 한국농업기계학회 학술발표논문집 Vol.28 No.2
국내 참외는 ‘23년 기준 전년 대비 약 109%의 수출 성장률을 보여 경제적으로 중요한 작물 중 하나이다(KAT, 2023). 그러나 농업 인구의 감소와 고령화 등의 이유로 농촌 노동력 부족 문제가 발생하고 있으며, 이를 해결하기 위해 다양한 농업 자동화 연구가 이루어지고 있다. 특히, 이를 위해 참외 온실에 농업용 로봇을 적용하기 위한 다양한 시도가 이뤄지고 있다. 그러나 농업용 로봇 적용에 앞서 작물을 인식할 수 있는 기술이 필수적이다. 따라서 본 연구에서는 줄기 유인방식 수경재배되는 참외를 인식하기 위해 초분광 영상의 적용 가능성을 검토하고 유효 밴드를 선정하기 위한 연구를 수행하였다. 실험 재료는 국립농업과학원(전라북도 완주군) 첨단디지털온실에서 재배된 참외를 대상으로 하였다. 참외의 성숙도는 총 3단계(미숙과, 중간숙과, 완숙과)로 분류하였고, 400-1,000 nm의 분광대역을 제공하는 초분광 카메라(SPECIM IQ, SPECIM, Oulu, Finland)를 사용하여 영상을 촬영하였다. 취득된 영상은 Breeze 프로그램(Ver. 2023.2.0, Prediktera, Umea, Sweden)을 사용하여 참외와 잎의 ROI를 지정하고 반사율을 추출하였다. 추출한 초분광 데이터는 광 산란 보정을 위해 SNV로 전처리를 수행하였다. 또한 성숙도별 참외와 잎 사이의 반사율 차이를 분석하기 위해 상관분석을 실시하였다. 그 결과, 성숙도와 상관없이 712-730, 875-896, 902-927 nm 대역의 R값이 0.8 또는 -0.8 이상으로 높은 상관관계를 나타내었다(p<0.01). 이와 같이 참외의 성숙도와 관계없이 과실과 잎을 분류하기 위해서는 Red Edge 부터 NIR 대역이 효과적인 것으로 나타났으며, 이는 미숙과의 경우 가시광선 영역에서 잎과의 큰 차이를 나타내지 않았기 때문이라고 판단된다. 따라서 온실에서 초분광 영상을 사용하여 참외의 성숙도와 관계없이 잎과 참외의 구분이 가능할 것이라고 사료된다.