• 한국산학기술학회논문지
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• 제21권5호
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• pp.141-149
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• 2020

본 연구의 목적은 간호학생을 대상으로 한 시뮬레이션 실습 중재 연구의 현황을 파악하고 효과를 분석하기 위함이다. 연구방법은 비판적 고찰을 사용하였으며, 고찰을 위한 자료는 RISS, KISS, NDSL, DBpia와 KRI에서 검색하였으며 주요 용어는 간호와 시뮬레이션이었다. 채택된 연구들은 방법론적으로 연구의 질을 분석하였으며, 이에 따라 서술연구, 단일그룹 사후 조사 연구를 제외하였으며, 결과적으로 234편의 연구가 분석에 채택되었다. 자료분석 결과, 우리나라에서 간호학생을 대상으로 한 시뮬레이션의 중재연구는 2008년부터 시작되었으며 단일그룹 사전-사후설계와 비동등성 대조군 사후설계는 석사학위와 박사학위 논문보다 저널에서 많이 나타났다. 관찰자와 간호학생에 의해 측정된 임상수행 능력은 비동등성 대조군 사전-사후 설계에서 가장 많이 연구된 종속변수이었으며 시뮬레이션과 관련된 간호학생 핵심역량은 전인간호제공을 위한 교양 및 전공지식의 통합적 간호술, 간호문제해결을 위한 비판적 사고능력, 대상자 건강개선을 위한 의사소통과 협력능력, 간호목표 달성을 위한 리더십 능력과 간호전문직발전을 위한 법적·윤리적 책임인식 능력으로 나타났다. 비동등성대조군 사전-사후설계에서는 다른 연구 설계보다 다양한 핵심역량들에 대한 효과를 확인하였다. 결론적으로 시뮬레이션 실습 교육은 임상수행능력 향상을 위한 효과적인 교수학습방법이나 비판적 사고나 문제해결능력은 추후 검증이 필요하다고 사료된다.

• Tuberculosis and Respiratory Diseases
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• 제66권6호
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• pp.431-436
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• 2009

Background: In order to access the role of ballooning in patients with post-tuberculosis bronchial stenosis (PTBS), medical records of patients who underwent the procedure were reviewed. Methods: Twenty-nine PTBS patients underwent balloon dilatation between May 1999 and November 2000 at Samsung Medical Center. The median age was 28 (range 16~62 year) and most patients were female (n=27, 93%). The mean number of ballooning procedures was 2.4 (range 1~8) and the interval between ballooning procedures was 76.2$\pm$69.7 days. Results: In general, the $FEV_1$ was improved after ballooning (from 66.2.$\pm$11.9% predicted to 73.5$\pm$13.0% predicted, p=0.0004). Among 29 patients who underwent ballooning, a clinically successful outcome was observed in 16 patients (55%). Comparison between the successful and unsuccessful groups showed that favorable factors for a successful outcome were a higher pre-9ballooning $FEV_1$ (71.1$\pm$8.1 vs. 60.2$\pm$13.3% predicted), higher post-9ballooning $FEV_1$ (89.2$\pm$7.8 vs. 63.4$\pm$9.2% predicted) and absence of left upper lobe collapse. The clinical outcome was unsuccessful in all eight patients with a pre-9ballooning $FEV_1$ $\leq$57% of predicted or with complete left upper lobe collapse. Conclusion: In conclusion, ballooning appears to be helpful in patients with PTBS, especially when the pre-ballooning $FEV_1$ >57% of predicted and there is no complete left upper lobe lung collapse.

• 성인간호학회지
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• 제12권4호
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• pp.517-532
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• 2000

The purpose of this study was to develop a critical pathway for case management of patients who have received Lumbar Laminectomy because of low back pain, arm and leg numbness, and radiating pain in the leg. For this study, a preliminary critical pathway was developed through a review of the literature including five critical pathways which are currently being used in the USA. In order to identify the overall service contents required by these patients, 30 cases were analyzed. These cases were taken from medical records of those with Lumbar Laminectomy between January, 1998 and December, 1998 in the department of neurosurgery at the Pusan National University Hospital in Pusan. An expert validity test was done for the preliminary critical pathway, a clinical validity test was also done using 12 patients with Lumbar Laminectomy between October 1, 1999 and January 31, 2000. After these processes, the final critical pathway was developed. The results are summarized as follows. 1. The vertical axis of the critical pathway includes the following eight items: assessment, consultation, diet, test, medication, treatment, activity, education/ discharge planning. The horizontal axis includes the time from the start of hospitalization to discharge. Analysis of the 30 medical records was done. analysis of the service contents showed the horizontal axis of the preliminary critical pathway was set from hospitalization to the 12th post operation day and the vertical axis was set to include eight items, the contents which should have occurred, according to the time frames of the horizontal axis. 2. As a result of the expert validity test, it was found that among the 233 items, 203 showed over 88% agreement and 30 of them showed less than 88% agreement, which were then revised or deleted from the critical pathway. At the preliminary meeting for the clinical validity test, the time of hospitalization on the horizontal axis was shortened to the 10th post operation day. A clinical validity test was done with 12 patients with Lumbar Laminectomy. All the cases progressed according to the critical pathway although some variances were noted in assessment, consultation, test, medication, and treatment. 3. Based on these results, a final critical pathway was determined. In conclusion, this critical pathway is partially applicable to the care of patients with Lumbar Laminectomy and needs further investigation.

• 한국IT서비스학회지
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• 제10권4호
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• pp.67-81
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• 2011

Recently, Mergers and Acquisitions (M&A) have become increasingly popular in the last few decades, and overseas' M&A are particularly increasing to sharpen corporate competitiveness on a global scale. Previous studies showed that one of the main reasons attributes to failures of mergers was the lack of attention to merging information systems. In recent years, both academy and industry have more focused on Post-Merger Integration (PMI) and the integration of information systems (IS) between two companies is one of the critical success factors of corporate. This paper focused on Post-Merger IT (Information Technology) Integration Methodology of Cross-Border M&A. We followed a single-site qualitative case study method in order to investigate the type of phenomenon in M&A's natural setting. Moreover, we examined a typical energy and power company case in order-based industry, so that other industry players may have different results to determine post-merger IT integration method and scope.

• Journal of Acupuncture Research
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• 제34권1호
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• pp.81-87
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• 2017

Objectives : Chronic post-thoracotomy pain is a refractory condition that responds poorly to existing pain treatments. The aim of this report is to describe favorable symptom changes in a patient with chronic post-thoracotomy pain after major chest trauma who received a series of manual acupuncture treatments over 3 months. Methods : Twelve sessions of manual acupuncture were provided to the patient, once or twice a week. Results : The manual acupuncture sessions were well tolerated. Minor adverse events, including temporary minor bleeding at the needled sites, were intermittently observed. The patient's symptoms, including pain, sleep disturbance, and anxiety gradually resolved and had almost completely disappeared after 12 sessions of acupuncture treatment. Conclusion : This single case report cannot confirm whether the observed positive changes in the patient's symptoms and dysfunctions are associated with the acupuncture treatments. Randomized controlled trials are necessary to explore the role of acupuncture in chronic post-thoracotomy pain in patients with major chest trauma.

• 플랜트 저널
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• 제6권4호
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• pp.56-62
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• 2010

This study investigated characteristics of the post-weld heat treatment of SA213-T23, which was developed for water wall of the ultra super critical power boiler. The temperature of post weld heat treatment should be $730^{\circ}C$ or higher to reduce hardness of the deposit metal and heat affected zone. Coincidently, the temperature should remain $760^{\circ}C$ or lower to prevent hardness of the base metal from dropping. Hardness decline of deposit metal was trivial according to time when the holding time of heat treatment at $740^{\circ}C$ of post-weld heat treatment gradually increased from initial 15 minutes.

• 한국응급구조학회지
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• 제17권3호
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• pp.61-71
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• 2013

Purpose: This study was conducted to evaluate the effects of the simulation education integrated with problem based learning on critical thinking disposition and self-efficacy on paramedic students. Methods: The study subjects were 48 students. Pre and post design with nonequivalent control group was assigned. The experimental group received the one week education for 4 weeks(4 sessions in total) with 90 minutes for each session. The control group received a regular skill training curriculum. Results: The experimental group showed significantly higher improvement of self-efficacy and critical thinking disposition preference compared with the control group. Conclusion: These findings indicate that simulation education with scenario was effective in improving the critical thinking disposition and self-efficacy in paramedic students.

• 한국발생생물학회지:발생과생식
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• 제21권4호
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• pp.449-456
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• 2017

The germline stem cells of the Drosophila ovary continuously produce eggs throughout the life-span. Intricate regulation of stemness and differentiation is critical to this continuous production. The translational regulator Nos is an intrinsic factor that is required for maintenance of stemness in germline stem cells. Nos expression is reduced in differentiating cells at the post-transcriptional level by diverse translational regulators. However, molecular mechanisms underlying Nos repression are not completely understood. Through three distinct protein-protein interaction experiments, we identified specific molecular interactions between translational regulators involved in Nos repression. Our findings suggest a model in which protein complexes assemble on the 3' untranslated region of Nos mRNA in order to regulate Nos expression at the post-transcriptional level.

• Nuclear Engineering and Technology
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• 제51권6호
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• pp.1650-1657
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• 2019

Fluidelastic instability and nonlinear dynamics of tube bundles is a key issue in a steam generator. Especially, once the post-instability motion of the tube becomes larger than the clearance gap to other tubes, effective contact or impact between the tubes under consideration and the other tube inevitable. There is seldom theoretical analysis to the nonlinear dynamic characteristics of a tube array in two-phase flow. In this paper, experimental and numerical studies were utilized to obtain the critical velocity of the flow-induced instability of a rotated triangular tube array. The calculation results agreed well with the experimental data. To explore the post-instability dynamics of the tube array system, a Runge-Kutta scheme was used to solve the nonlinear governing equations of tube motion. The numerical results indicated that, when the flow pitch velocity is larger than the critical velocity, the tube array system is undergoing a limit cycle motion, and the dynamic characteristics of the tube array are almost similar for different void fractions.

• Structural Engineering and Mechanics
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• 제35권2호
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• pp.191-203
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• 2010

To investigate the critical buckling load and post-buckling behavior of an axially loaded pile entirely embedded in soil, the non-linear large deflection differential equation for a pinned pile, based on the Winkler-model and the discretionary distribution function of the foundation coefficient along pile shaft, was established by energy method. Assuming that the deflection function was a power series of some perturbation parameter according to the boundary condition and load in the pile, the non-linear large deflection differential equation was transformed to a series of linear differential equations by using perturbation approach. By taking the perturbation parameter at middle deflection, the higher-order asymptotic solution of load-deflection was then found. Effect of ratios of soil depth to pile length, and ratios of pile stiffness to soil stiffness on the critical buckling load and performance of piles (entirely embedded and partially embedded) after flexural buckling were analyzed. Results show that the buckling load capacity increases as the ratios of pile stiffness to soil stiffness increasing. The pile performance will be more stable when ratios of soil depth to pile length, and soil stiffness to pile stiffness decrease.