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Nurses' management of older patients with post-anesthesia delirium: A Q methodology approach
Kang,Minyeong(Minyeong Kang),Kim,Eun Young(Eun Young Kim),Chang,Sung Ok(Sung Ok Chang) 한국노인간호학회 2022 노인간호학회지 Vol.24 No.4
Purpose: This is an analysis of the experiences of nurses in Post Anesthesia Care Units (PACUs) in caring for older patients with emergence delirium using the Q-methodology. Methods: The Q-methodology, which is used to explore and understand human subjectivity, was applied. Thirty nurses who had experiences in providing nursing for delirium in older patients after surgery in a PACU participated in this study. Results: This study revealed three factors regarding the frame of reference of PACU nurses in detecting and managing older patients' emergence delirium: “detect the deviant changes leading to instability”, “focus on the patient’s degree of cognitive recovery within the framework of recovery time”, and “awareness of possible clues based on the patient’s underlying disease(s)”. Conclusion: These findings are expected to be utilized as a basis for more practical and accessible PACU nurse delirium education that reflects nurses’ subjective viewpoints explained by the three identified factors.
Dutta, Soumen,Han, HyukSu,Je, Minyeong,Choi, Heechae,Kwon, Jiseok,Park, Keemin,Indra, Arindam,Kim, Kang Min,Paik, Ungyu,Song, Taeseup Elsevier 2020 Nano energy Vol.67 No.-
<P><B>Abstract</B></P> <P>Herein, holey, thin, conductive nickel substituted cobalt molybdenum boride (Ni-CMB) nanosheets have been designed to obtain superior electrochemical HER performance with small overpotential of 69 mV at 10 mA cm<SUP>-2</SUP> current density and lower Tafel slope of 76.3 mV dec<SUP>-1</SUP> in alkaline medium. Incorporation of Ni leads to improved conductivity and favorable hydrogen adsorption on Mo sites, which collectively yield efficient electrocatalytic H<SUB>2</SUB> production from Ni-CMB catalyst. The ultrathin nature (thickness = 5.0 nm) of the designed material expectedly helps to attain high exposure of active sites and facile charge transportation through the nanosheets. Additionally, the decorated mesopores (average size = 3.86 nm) on nanosheets have benefitted towards faster electrolyte diffusion, easy gas escape from catalyst surface to support high electrocatalytic performance. Finally, well-maintained morphology of the sample and evolution of HER active sites in the material have guaranteed long-term, sustainable hydrogen production even at high current densities, which clearly demonstrate its superiority over an expensive electrolyzer (Pt-C) in alkaline water.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Nickel-substituted cobalt molybdenum boride (Ni-CMB) nanosheets with controlled chemistry and morphology were successfully synthesized. </LI> <LI> Strategic nickel incorporation is found to be crucial for the improvement of electrical conductivity and adsorption energy boosting electrocatalytic activity. </LI> <LI> Robust nature of the material and sustainable production of hydrogen for long time scale is achieved via structural engineering of Ni-CMB. </LI> <LI> DFT calculations revealed individual roles of elements in Ni-CMB for HER, which can help to understand catalytic reaction mechanism. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>Robust, holey nanosheets of nickel substituted cobalt molybdenum boride exhibits tremendous hydrogen evolution activity and long-term durability by utilizing better electrical conductivity on nickel incorporation and easy charge transportation through the mesoporous channel, respectively.</P> <P>[DISPLAY OMISSION]</P>
신준혁(Junehyunk Shin),강찬민(Chanmin Kang),김예빈(Yebin Kim),손명지(Myeongji Son),주민영(Minyeong Ju),이상운(Sangun Lee) 한국방송·미디어공학회 2020 한국방송공학회 학술발표대회 논문집 Vol.2020 No.11
시대가 변화됨에 따라 다양한 비대면 방송들이 증가하는 추세를 보이고 있다. 가상현실(VR)을 이용한 쇼케이스부터 실시간 쌍방향 소통을 활용한 무대까지 멀티뷰를 활용한 방송들이 여러 방향으로 활용되고 있으며. 이러한 환경 속에 관객과 조금 더 밀접한 방송을 진행하기 위한 여러 방법이 시도되고 있다. 따라서, 본 논문에서는 현장에서 녹화되고 있는 모든 카메라 소스들을 썸네일 사이즈로 만들어 한눈에 알아볼 수 있는 플랫폼을 구성하여 시청자가 원하는 카메라를 선택해 보고 싶은 장면을 선택할 수 있는 시스템을 제안한다.