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COVID-19 상황에서 간호대학생의 MBTI 성격유형, 학습전략, 사회적지지가 학업스트레스에 미치는 영향
조미래(Jo, Mirae),이현진(Lee, Hyunjin),신유진(Shin, Yujin),김수현(Kim Soo-hyun),김서영(Kim Seo-young),조금주(Jo, Geum-joo),장수현(Jang Soo-hyun) 학습자중심교과교육학회 2022 학습자중심교과교육연구 Vol.22 No.7
Objectives This study is a descriptive survey designed to identify the effects of MBTI personality type, learning strategy, and social support on academic stress in nursing students under untact educational environment caused by COVID-19. Methods The subjects of this study are 125 nursing students who were 1-4 graders attending one university located in D metropolitan city. Data were collected from Oct. 5, 2021 to Nov. 18, 2021. For data analysis, SPSS 23.0 program was used for descriptive statistics, t-test, ANOVA, pearson’s correlation, and hierarchical regression. Results In non-face-to-face class environment caused by COVID-19, nursing students’ academic stress had a negative correlation with learning strategy and social support and their learning strategy had a positive correlation with social support. As a result of regression analysis, it was found that gender, major satisfaction, learning strategy, and social support affected academic stress and these variables accounted for 31.6% of academic stress. Conclusions To reduce academic stress in the COVID-19 situation, there is a need to develop programs for improving major satisfaction, learning strategy, and social support and seek various solutions. 목적 COVID-19 상황에서 간호대학생의 MBTI 성격유형, 학습전략, 사회적지지가 학업스트레스에 미치는 영향을 파악하고자 실시된 서술적 조사연구이다. 방법 대상자는 D광역시 소재 1개 대학교에 재학 중인 1~4학년 간호대학생 125명이다. 자료수집 기간은 2021년 10월 5일부터 11월 18일까지이며, 구글 설문지를 활용한 온라인 설문 방식을 사용하여 자료를 수집하였다. 자료분석은 SPSS 23.0 프로그램을 활용하여 서술통계, T-test, ANOVA, Pearson’s correlation, Hierarchical regression이 실시되었다. 결과 COVID-19 상황에서 간호대학생의 학업스트레스는 학습전략과, 사회적지지와 부적 상관관계가 있었고 학습전략은 사회적지지와 정적 상관관계를 나타냈다. 또한 회귀분석 결과, 성별, 전공만족도, 학습전략, 사회적지지가 학업스트레스에 영향을 미치는 변수로 나타났으며, 이 변수들은 학업스트레스를 31.6% 설명하였다. 결론 COVID-19 상황에서 학업스트레스 감소를 위해서는 전공만족도, 학습전략, 사회적지지 향상을 위한 프로그램 개발 및 다양한 방안을 모색해야 한다.
Yujin Seong,Youngkyu Kim,Im Doo Jung,Sungho Kim,See Jo Kim,Seong-gon Kim,Hak Jun Kim,Seong Jin Park 대한금속ㆍ재료학회 2017 대한금속·재료학회지 Vol.55 No.11
The material characterization of single crystalline Cu columns was numerically carried out at the submicroscopic level. A molecular dynamics (MD) simulation was employed using the embedded-atom method (EAM) interatomic potential between a pair of Cu atoms to describe the interactions among Cu atoms. First, the relationship between mechanical properties and factors affecting their behavior were numerically investigated using a crystal structure including several defects. The factors were specimen size, strain rate, and temperature. As the specimen size increased the normalized yield stress decreased, which was similar to results obtained at other length-scale. The yield stress tended to lead to exponential strain rate-hardening and a linear temperature-softening. Next, material characterization was conducted based on these results. These computational results can lead to the development of an in silico platform to characterize material properties and MD simulation can lay the groundwork for multi-scale modeling and simulation. (Received June 16, 2017; Accepted June 29, 2017)
Jo, Young-Soo,Seon, Kwang-il,Shinn, Jong-Ho,Yang, Yujin,Lee, Dukhang,Min, Kyoung-Wook American Astronomical Society 2018 The Astrophysical journal Vol.862 No.1
<P>We compare vertical profiles of the extraplanar H alpha emission to those of the UV emission for 38 nearby edge-on late-type galaxies. It is found that detection of the 'diffuse' extraplanar dust (eDust), traced by the vertically extended, scattered UV starlight, always coincides with the presence of the extraplanar H alpha emission. A strong correlation between the scale heights of the extraplanar H alpha and UV emissions is also found; the scale height at H alpha is found to be similar to 0.74 of the scale height at FUV. Our results may indicate the multiphase nature of the diffuse ionized gas and dust in the galactic halos. The existence of eDust in galaxies where the extraplanar H alpha emission is detected suggests that a larger portion of the extraplanar H alpha emission than that predicted in previous studies may be caused by H alpha photons that originate from H II regions in the galactic plane and are subsequently scattered by the eDust. This possibility raise an advantage in studying the extraplanar diffuse ionized gas. We also find that the scale heights of the extraplanar emissions normalized to the galaxy size correlate well with the star formation rate surface density of the galaxies. The properties of eDust in our galaxies is on a continuation line of that found through previous observations of the extraplanar polycyclic aromatic hydrocarbons emission in more active galaxies known to have galactic winds.</P>
Yujin Byun,Chanyoung Seo,Ho Young Jo,Young Jae Lee,Ji-Hun Ryu,Hye-Yoon Chong,Seong-Wan Park 한국방사성폐기물학회 2022 한국방사성폐기물학회 학술논문요약집 Vol.20 No.2
Deep geological disposal is generally accepted to be the most practical approach to handling radioactive wastes. Bentonite has been considered as a buffer material in deep geological disposal repositories (DGR) for high-level radioactive wastes. Evaluating the effect of short-term bentonite alteration on EBS performance has limitations in safety assessment over thousands of years. Information on bentonite characteristics under various conditions obtained from natural systems can be used to evaluate long-term safety of bentonite buffer. The purpose of this study was to investigate mineralogical and physicochemical characteristics of bentonite in the Naah mine located in Yangnam-myeon, Gyeongju-si for a natural analogue of the bentonite barrier in DGR. A total of 15 samples were collected at regular intervals from the bentonite layer and andesitic lapilli tuff (i.e., parent rock) at the boundary with the bentonite layer. The bentonite layer is located at a depth of about 1 m below the ground surface. Each sample was separated into particles < < 75 μm and particles < 2 μm through grinding and sedimentation processes. The separated subsamples were characterized mineralogically and physiochemically using various analytic techniques. Bentonite samples have a similar SiO2/Al2O3 ratio to the parent rock and a lower (Na+K)/Si ratio than the parent rock, indicating depletion of alkali components during bentonitization. The parent rock and bentonite samples have similar mineral composition (i.e., quartz, feldspars, opal-cristobalite-tridymite and montmorillonite). Results of XRD analysis on the randomly distributed particles < 2 μm indicate that bentonite is mostly composed of Ca-montmorillonite, which is a typical dioctahedral smectite. Results of FTIR and VNIR analysis indicate that montmorillonite contained in bentonite is Al-dioctahedral montmorillonite, and Al is substituted with Mg in some octahedron units. The mineralogical and physicochemical characteristics are similar regardless of sampling location. These results suggest that bentonite potentially exposed to weathering, located near the ground surface, has hardly altered.
Pak Yujin,Baek Sujin,Bang Minhae,Kim Hoseop,Jo Yumin,Oh Chahyun,Hong Boohwi 조선대학교 의학연구원 2023 Medical Bilogical Science and Engineering Vol.6 No.1
Regional anesthesia has become an alternative to general anesthesia in patients with risk factors that may cause perioperative complications. The transversalis fascial plane block (TFPB) is a useful regional technique for blocking the ilioinguinal and iliohypogastric nerves. An 87-yearold female patient with symptomatic severe aortic stenosis was scheduled to undergo open reduction and fixation with an autogenous iliac crest bone graft (ICBG) for the nonunion of the proximal shaft of an ulnar fracture. General anesthesia was avoided due to cardiac comorbidities; therefore, regional anesthesia was considered. ICBG can be performed under spinal anesthesia. However, we performed TFPB since severe aortic stenosis is a contraindication for spinal anesthesia. A brachial plexus block was performed for the primary forearm surgical site. The surgery proceeded safely without any hemodynamic compromise or special events. TFPB for ICBG can be a useful alternative in patients with severe cardiac comorbidities to avoid perioperative risks.