냉온처리 전후의 광환경 조건이 오이 묘의 생존율에 미치는 영향

Yooun Il Nam(남윤일),Young Hoe Woo(우영희),Hyung Jun Kim(김형준) (사)한국생물환경조절학회 2001 시설원예‧식물공장 Vol.10 No.3

The Effect of Systematic Approach to Tracheostomy Care in Patients Transferred from the Surgical Intensive Care Unit to General Ward

Yooun-joong Jung,Younghwan Kim,Kyuhyouck Kyoung,Min Ae Keum,Taehyun Kim,Dae seong Ma,Suk-Kyung Hong 대한중환자의학회 2018 Acute and Critical Care Vol.33 No.4

Background: The aim of this study was to investigate the effects of using a systematic approachto tracheostomy care by a clinical nurse specialist and surgical intensivists for patientswith a tracheostomy who were transferred from the surgical intensive care unit (SICU) to thegeneral ward. Methods: In this retrospective study, subjects were limited to SICU patients with a tracheostomywho were transferred to the general ward. The study period was divided into a preinterventionperiod (January 1, 2007 to December 31, 2010) and a postintervention period (January1, 2011 to December 31, 2014), and electronic medical records were used to analyze andcompare patient characteristics, clinical outcomes, and readmission to the SICU. Results: The analysis included 44 patients in the preintervention group and 96 patients in thepostintervention group. Decannulation time (26.7±25.1 vs. 12.1±16.0 days, P=0.003),length of stay in the general ward (70.6±89.1 vs. 40.5±42.2 days, P=0.008), length of totalhospital stay (107.5±95.6 vs. 74.7±51.2 days, P=0.009), and readmission rate of SICU decreaseddue to T-cannula occlusion (58.8% vs. 5.9%, P=0.010). Conclusions: Using a systematic approach to tracheostomy care in the general ward led toreduction in decannulation time through professional management, which resulted in ashorter hospital stay. It also lowered SICU readmission by solving problems related to direct Tcannula.

오이묘에 냉온 스트레스가 광합성 및 생리반응에 미치는 영향

Yooun Il Nam(남윤일),Young Hoe Woo(우영희) (사)한국생물환경조절학회 2001 생물환경조절학회지 Vol.10 No.3

Characteristics and Risk Factors for Delirium in The Surgical Step-Down Unit

Yooun-joong Jung,Soyeon Yoon,Jinjoo Kim,Yoon Jung An,Jeonghui Ok 대한외상중환자외과학회 2023 Journal of Acute Care Surgery Vol.13 No.3

Purpose: This study aimed to investigate the incidence rate, types and risk factors for delirium in patients admitted to the surgical Step-Down Unit (SDU). Methods: This study was a retrospective study of the electronic medical records of patients admitted to a surgical SDU from February 2020 to July 2020. The delirium assessment was conducted using the short Confusion Assessment Method (a tool that allows quick and easy screening of delirium) and the incidence and risk factors for delirium were determined. Results: Among a total of 227 patients in the study, the incidence rate of delirium was 35 cases (16.7%). It predominantly occurred on the first day (n = 16, 45.7%) and the second day of admission (n = 15, 42.8%). The peak occurrence of delirium was between 14:00 and 22:00 (n = 30, 85.7%). The most common type of delirium was hypoactive (n = 19, 54.3%). The results of multiple logistic regression analysis indicated that the factors influencing the occurrence of delirium in the surgical step down unit (SDU) were age, hypertension, stroke, white blood cell count, and the use of restraints. Conclusion: Considering the characteristics of high-risk groups for delirium in the surgical SDU, it is necessary to establish nursing practice guidelines to minimize delirium.

Status and Needs of Continuing Education for Trauma Nursing

( Yooun-joong Jung ),( Suhyun Kim ),( Sangmi Noh ),( Eunkyoung Seo ),( Soyoung Jung ),( Jiyoung Kim ) 대한외상학회 2019 大韓外傷學會誌 Vol.32 No.3

Purpose: This study was conducted to status and needs for continuing education for trauma hospital nurses in Korea. Methods: Thirty nurses from the seven level I trauma center hospitals or trauma treatment systems were randomly selected and surveyed. The survey was conducted from March 1 to May 31, 2017. Categorical data were analyzed with Pearson chi-square tests and Continuous variables were analyzed with ANOVA. Results: Only 86 out of 204 nurses had received continuing education (42.1%). The current status of continuing education programs, delivering institution (p<0.001), education method (p<0.001), education period (p=0.003), number of participants (p=0.007), and instructors (p=0.014) were also significantly different from trauma center to trauma center. There were 108 (52.9%) nurses who responded that continuing education programs were “needed” 92 (45.1%) and “very much needed 16 (7.8%). According to each trauma center’s characteristics were significantly differences in the need for continuing education (p=0.089), subject selection method (p<0.001) and the number of continuing education sessions (p=0.043) depending on the hospital. Conclusions: It is necessary to consider differences between the hospitals to develop continuing education programs that reflect the needs of nurses, in order to improve the efficiency of and satisfaction with the educational programs.

토양수분조건 및 화학물질처리가 오이묘의 저온장해에 미치는 영향

남윤일(Yooun Il Nam),우영회(Young Hoe Woo),이관호(Kwan Ho Lee) (사)한국생물환경조절학회 2006 시설원예‧식물공장 Vol.15 No.4

오이묘가 저온피해를 입기 전, 후 토양수분조건과 몇 가지의 화학물질처리가 오이묘의 냉해 경감에 미치는 영향을 연구한 결과 토양수분 -0.3bar 적습상태에서 07:00시에 2℃로 저온처리를 했을때, 생존율은 28.3%이었으나 -5.5ba에서는 83.3%로 높아져 토양수분이 건조하면 저온피해가 감소되었다. 그러나 18:00시에 저온처리하면 -0.3bar에서도 생존율은 87% 이상이었다. 토양수분이 건조하면 엽신의 ABA함량은 크게 증가되었다. 저온처리 전, 후 ABA의 토양 및 엽면처리는 오이묘의 생존율을 유의하게 증가시켰고 세포의 전해질 누출량도 현저하게 감소시켰으며, 수량의 감소를 경감시켰다. 또한 ABA 처리는 저온처리 후보다는 저온처리 전에, 엽면처리보다는 토양에 처리하는 것이 보다 효과적이었다. ABA(10??M)와 더불어 요소(0.2%)와 KH₂PO₄의 엽면살포는 오이의 생장과 수량에 미치는 저온피해를 경감시키는데 효과적이었다. This study was conducted to investigate the effects of chemical application and amout of soil moisture on low temperature stress of cucumber seedling under the greenhouse conditions. When chilling treatments (2℃) were begun at 07:00AM, survival rates of seedlings of two conditions; -0.3 bar and -5.5 bar were 28.3% and 83.3% respectively. But when chilling treatments were begun at 6:00PM - even the soil moisture condition was -0.3 bar - the survival rate was above the 87%. When reducing the soil moisture from -0.3 bar to -9.0 bar, ABA content in leaf was increased by 6.5fold. Spraying of abscise acid (ABA) before or after the chilling significantly increased the survival rates of seedlings, decreased the amounts of leaking electrolytes and prevented the yield reductions. ABA application on the soil before the chilling appeared to be more effective than the application after the chilling with foliar spray. Spraying of ABA (10?? M), urea (0.2%) or KH₂PO₄ was effective in counteracting the low temperature, which causes growth deterioration and yield reduction in cucumbers.

온톨로지를 이용한 가이아 게임 아키텍처 제안에 관한 연구

윤호창(Yooun Ho-Chang),전홍준(Jeon Hong-Jun),오정석(Oh Jung-Suk) 한국콘텐츠학회 2005 한국콘텐츠학회 종합학술대회 논문집 Vol.3 No.1

게임의 그래픽과 기술이 발달하면서 게임은 보다 복잡하게 되었으며 게임 캐릭터가 구현되는 게임의 세계가 보다 다양하게 구현되고 있다. 이에 온톨로지를 이용하여 효율적 게임 월드의 설계와 가이아 이론의 게임 아키텍처에 적용함으로서 게임 월드가 생태적 피드백 구조를 갖게 하여 게임 사용자의 상호 작용을 높이게 제안한다. As the development of game graphic technology, games include many characters and various virtual worlds. In this paper we proposed the architecture which can make efficient game world through ontology technology. We applied Gaia theory to this architecture. And this game world can have ecological feedback structure. So we proposed the Gaia game architecture which can increase the interaction between user and game world.

외상환자의 치료에서 외상 전문간호사 도입 결과

정윤중 ( Yooun Joong Jung ),김영환 ( Young Hwan Kim ),김태현 ( Tae Hyun Kim ),금민애 ( Min Ae Keum ),마대성 ( Dae Sung Ma ),경규혁 ( Kyu Hyouck Kyoung ),김정재 ( Jung Jae Kim ),홍석경 ( Suk Kyung Hong ) 대한외상학회 2012 大韓外傷學會誌 Vol.25 No.4

Purpose: Ongoing treatment and care, as well as initial stabilization, are required for trauma patients. With increasing number of sickest trauma patients and shortage of surgeons, the need for advanced practice nurse to provide and coordinate trauma care has been greater. The purpose of this study is to analyze the effect of hiring a trauma clinical nurse specialist and its influence on the treatment of trauma patients. Methods: Based on the employment of the clinical nurse specialist in December 2010, the patients were divided into two groups: patients admitted from January 1, 2010 to November 30, 2010 and patients admitted from December 1, 2010 to December 31, 2011. Retrospectively, data were collected using electronic medical records. The general characteristics, clinical courses, and ICU re-admission rates, collaboration (transfers to other departments and collaborative surgery) were compared. Results: To have a clinical nurse specialist on the trauma team resulted in a statistically significant reductions in the length of general ward hospital stay (p<0.05), the ICU re-admission rate, (p<0.03), the lead-time before transfer to other departments (p<0.05). Conclusion: The clinical nurse specialist, as a professional practitioner, improved the quality of treatment through early detection and management of problems. In addition, as a coordinator, the clinical nurse specialist maintained a cooperative relationship with multi-disciplinary medical personnel. The trauma clinical nurse spe-cialist contributed to the treatment of trauma patients positively through a decrease in ICU re-admission rate and length of hospital stay. (J Trauma Inj 2012;25:254-260)

외래에서 항암화학요법을 받는 유방암 환자의 수면의 질 영향요인

최윤숙(Yooun-Sook Ckoi) 한국산학기술학회 2019 한국산학기술학회논문지 Vol.20 No.2

본 연구는 외래에서 항암화학요법을 받는 유방암 환자의 수면의 질에 영향을 미치는 요인을 규명하고자 실시하였다. B시에 소재한 종합병원에서 외래로 통원하며 항암화학요법을 받고 있는 유방암 환자 203명을 대상으로 자료를 수집하였으며, 수면의 질 정도는 가정경제상태(F=4.363, p=.014), 신체적 불편 증상(t=3.398, p=.001), 동반질환(t=2.634, p=.009), 유방암 진단 전 수면장애 경험(t=3.558, p=.001)에 따라 통계적으로 유의한 차이가 있었다. 외래에서 항암화학요법을 받는 유방암 환자의 수면의 질은 스트레스(r=-.369, p=.001), 피로(r=-.565, p=.001), 우울(r=-.526, p=.001)과 음의 상관관계로 나타났다. 또한 이들의 수면의 질에 영향을 미치는 요인으로는 피로(β=-.387, p<.001), 유방암 진단 전 수면장애 경험(β=-.178, p<.002), 우울(β=-.231, p<.004)순으로 나타났으며, 수면의 질에 대한 이들 변수의 설명력은 총 37.4%이었다. 본 연구의 결과를 토대로 외래에서 항암화학요법을 받는 유방암 환자의 수면의 질을 증진시키기 위해서는 피로를 감소시키고, 유방암 진단 전 수면장애 경험 유무를 미리 파악하여 항암치료 전 조기에 적절한 약물적, 비약물적 수면중재를 제공하고, 우울을 감소시키기 위한 통합적 간호중재 프로그램 개발이 필요하다. The purpose of this study was to identify the factors influencing the quality of sleep in breast cancer patients receiving chemotherapy in the outpatient settings. The data were collected from 203 patients with breast cancer receiving chemotherapy in the outpatient settings at one tertiary hospital in B City. Stress, fatigue and depression were negatively correlated with quality of sleep (r=-.369, p=.001; r=-.565, p=.001; r=-.526, p=.001, respectively). Fatigue(β=-.387, p<.001) was one of the biggest impact factors on quality of sleep which explained 31.6% of the variance of the sleep quality, followed by the experience of sleep disturbances prior to the diagnosis of breast cancer(β=-.178, p<.002) and depression(β=-.231, p<.004). In total, all of the antecedent variables explained significantly 37.4% of the variance of the sleep quality. Thus, in order to improve the quality of sleep, integrative nursing interventions need to be developed to reduce fatigue and depression among them, including an proactive system to screen out the patients with the experience of sleep disturbances prior to the diagnosis with breast cancer and to provide adequate pharmacological and/or non-pharmacological sleep interventions prior to the chemotherapy.

Enhanced conductivity at orthorhombic–rhombohedral phase boundaries in BiFeO3 thin films

Heo, Yooun,Hong Lee, Jin,Xie, Lin,Pan, Xiaoqing,Yang, Chan-Ho,Seidel, Jan Nature Publishing Group 2016 NPG Asia Materials Vol.8 No.-

<P>Enhanced properties in modern functional materials can often be found at structural transition regions, such as morphotropic phase boundaries (MPB), owing to the coexistence of multiple phases with nearly equivalent energies. Strain-engineered MPBs have emerged in epitaxially grown BiFeO3 (BFO) thin films by precisely tailoring a compressive misfit strain, leading to numerous intriguing phenomena, such as a massive piezoelectric response, magnetoelectric coupling, interfacial magnetism and electronic conduction. Recently, an orthorhombic-rhombohedral (O-R) phase boundary has also been found in tensile-strained BFO. In this study, we characterise the crystal structure and electronic properties of the two competing O and R phases using X-ray diffraction, scanning probe microscope and scanning transmission electron microscopy (STEM). We observe the temperature evolution of R and O domains and find that the domain boundaries are highly conductive. Temperature-dependent measurements reveal that the conductivity is thermally activated for R-O boundaries. STEM observations point to structurally wide boundaries, significantly wider than in other systems. Therefore, we reveal a strong correlation between the highly conductive domain boundaries and structural material properties. These findings provide a pathway to use phase boundaries in this system for novel nanoelectronic applications.</P>