• 한국사회복지학
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• 제64권2호
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• pp.185-212
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• 2012

본 연구는 한국노동패널 2차, 7차, 12차 자료를 활용하여 노년기로의 이행에 따른 소득불평등의 변화와 소득이동성을 분석하였다. 분석 결과는 다음과 같이 요약된다. 첫째, 비노년기에서 노년기로 이행할 때 소득불평등 수준이 증가하는 것으로 나타났다. 둘째, 비노년기에서 노년기로 이행하는 시기에 소득순위의 변동이 크게 나타나고, 노년기로의 이행이 이루어진 이후 노년후기로 갈수록 소득순위가 고착화되는 경향이 나타났다. 셋째, 노년기로 이행할 때 소득불평등 수준을 증가시키고 소득순위의 변동을 야기하는 가장 큰 요인은 근로소득의 감소이다. 이러한 분석 결과는 노년기로 이행할 때 근로소득의 감소가 소득불안정성을 야기한다는 사실을 의미한다.

• 한국안전학회지
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• 제21권4호
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• pp.13-18
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• 2006

In spite of frequent defect in industrial boilers, life assessment or diagnostic method for them has not been actively studied. In this research, SS400 carbon steel used in industrial boilers is simulated with artificial aging heat treatment. To do qualitative life assessment, differences in micro-structures and hardness of SS400 by the degradation time are studied. In addition, variation in material properties by aging was observed with the tensile test at room temperature and $179^{\circ}C$ and changes in ductile to brittle transition temperature was observed with the charpy impact test performed at several test temperature.

• 대한기계학회논문집
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• 제17권9호
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• pp.2271-2279
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• 1993

In the case of life prediction on the structures and machines after long service, it is natural to consider a degradation problems. Most of degradation data form practical structures are isolated data obtained at the time of periodical inspection or repair. From such data, it may be difficult to obtain the degradation curve available and necessary for life prediction. In this paper, for the purpose of obtaining a degradation curves, developed the simulate degradation method and fatigue test and Charpy impact test were conducted on the degraded, simulate degraded and recovered materials. Fatigue life prediction were conducted by using the relationship between fracture transition temperature (DBTT : vTrs) obtained from the Charpy impact test through the degradation process and fatigue crack growth constants of m and C obtained from the fatigue test.

• 한국실내디자인학회논문집
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• 제34호
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• pp.69-77
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• 2002

The purpose of this study is to recognize the living space and life pattern transition which is expressed in the modernization course with the analysis of the Jeju rural houses. For this study, I choose 72 residences examples in 8 villages as the subjects which are changed by the spontaneous purpose of the inhabitants who live in Jeju area were chosen as the subjects. As for the research method, after visiting the subject residence directly, and the field study such as the actual estimation, observation and interview were performed.The conclusion of the study with these purpose are as follows. First, The opened spatial composition of the sitting-inclination is composed of the form which has the individual opened room and living room with the mechanism to grant the flexibility to the limited space and the structure for enduring the much-humid oceanic climate. Second, The life pattern shows the sitting life which usually uses the an-bang and living room with the seasonal change.

• Asian Pacific Journal of Cancer Prevention
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• 제16권8호
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• pp.3429-3434
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• 2015

Background: This study analyzed predictors of regular mammography performance in Korea. In addition, we determined factors affecting regular mammography performance in life-transition aged women by applying an attitude, social influence, and self-efficacy (ASE) model. Materials and Methods: Data were collected from women aged over 40 years residing in province J in Korea. The 178 enrolled subjects provided informed voluntary consent prior to completing a structural questionnaire. Results: The overall regular mammography performance rate of the subjects was 41.6%. Older age, city residency, high income and part-time job were associated with a high regular mammography performance. Among women who had undergone more breast self-examinations (BSE) or more doctors' physical examinations (PE), there were higher regular mammography performance rates. All three ASE model factors were significantly associated with regular mammography performance. Women with a high level of positive ASE values had a significantly high regular mammography performance rate. Within the ASE model, self-efficacy and social influence were particularly important. Logistic regression analysis explained 34.7% of regular mammography performance and PE experience (${\beta}=4.645$, p=.003), part-time job (${\beta}=4.010$, p=.050), self-efficacy (${\beta}=1.820$, p=.026) and social influence (${\beta}=1.509$, p=.038) were significant factors. Conclusions: Promotional strategies that could improve self-efficacy, reinforce social influence and reduce geographical, time and financial barriers are needed to increase the regular mammography performance rate in life-transition aged.

• 한국윤활학회:학술대회논문집
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• 한국윤활학회 2003년도 학술대회지
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• pp.355-359
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• 2003

In this paper, we investigated the wear lift, wear rate, and its transition on the Hertz pressure. In the experiment, we used TiAlCrN coating deposited by the sputtering technique and ball diameter of 10mm, 7.94mm and 4.76mm for the various Hertz pressure. Ball-on-disk sliding tests wire performed under the unlubricated condition. As the diameter of a ball decreased, the failure load of TiAlCrN coating decreased. However, a good correlation was observed between the wear life and Hertz pressure, and all ball specimens showed the infinite wear life at about 450MPa. In measurement of wear rate, as the diameter of the ball inclosed, the wear transition appeared in bigger load. However, a good correlation was observed between the wear rate and Hertz pressure. The transition appeared in the range from 550MPa to 600MPa at all ball speimens.

• Journal of Microbiology and Biotechnology
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• 제27권10호
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• pp.1820-1826
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• 2017

Lipoteichoic acid (LTA), a cell wall component of gram-positive bacteria, is recognized by Toll-like receptor 2, expressed on certain mammalian cell surfaces, initiating signaling cascades that include nuclear factor kappa-light-chain-enhancer of activated B cells (NF-${\kappa}B$) and mitogen-activated protein kinase. There are many structural and functional varieties of LTA, which vary according to the different species of gram-positive bacteria that produce them. In this study, we examined whether LTA isolated from Staphylococcus aureus (aLTA) affects the expression of junction proteins in keratinocytes. In HaCaT cells, tight junction-related gene expression was not affected by aLTA, whereas adherens junction-related gene expression was modified. High doses of aLTA induced the phosphorylation of extracellular signal-regulated protein kinases 1 and 2, which in turn induced the epithelial-mesenchymal transition (EMT) of HaCaT cells. When cells were given a low dose of aLTA, however, NF-${\kappa}B$ was activated and the total cell population increased. Taken together, our study suggests that LTA from S. aureus infections in the skin may contribute both to the outbreak of EMT-mediated carcinogenesis and to the genesis of wound healing in a dose-dependent manner.

• Journal of Life Science
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• 제10권2호
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• pp.27-32
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• 2000

To understand the effects of the fraction from Chrysanthemum coronarium L. (CC), we prepared five different types of samples, denoted here as CCMM, CCMH, CCMEA, CCMB and CCMA. We studied the effects of these samples on the phase transition of liposomal membranes by high-sensitivity differential scanning calorimetry (nano-DSC). We used dipalmitoylphosphatidylcholine (DPPC) bilayers which make most stable liposomes among the other phosphatidylcholines. When the samples were added to the bilayers, the phase transition temperatures of DPPC liposomes incorporated with CCMH and CCMEA were decreased by 1.5 and 2^{\circ}C$, while the other three fractions showed less tendencies. The CCMH and CCMEA fractions markedly affected the thermotropic properties of DPPC liposomes, broadened and shifted the thermograms of DSC. It also significantly reduced the size of cooperative unit of the transition. In all cases, there was no change in enthalpy of transition within the concentration range of the CC fractions studied. We concluded that the incorporation of the CCMH and CCMEA into DPPC liposomes was preferentially located in the hydrophobic core of DPPC bilayers compared to the other three fractions CCMM, CCMB and CCMA. These results suggest that certain substances in CCMH and CCMEA fractions might have biologically significant effects on the fluidity of biological membrane.

• 한국노년학
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• 제30권1호
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• pp.179-194
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• 2010

본 연구는 만성신부전으로 혈액투석치료를 받고 있는 노인의 건강관련 삶의 질을 고찰해보고, 대상자들의 일반적 특성, 건강상태에 대한 인식, 그리고 건강관련 삶의 질 간의 관계분석을 통해 혈액투석노인의 건강관련 삶의 질에 대한 폭넓은 이해와 함께 건강관련 삶의 질을 향상시키기 위한 체계적인 방안을 모색해 보고자 시도되었다. 연구 대상은 수도권의 인공신장실 부설 병의원 30개에서 현재 1개월 이상 혈액투석치료를 받고 있는 65세 이상 노인으로 연구 참여에 동의한 443명이었다. 조사도구는 건강관련 삶의 질 척도로 SF-36 (Medical Outcome Survey 36-Item Short Form)을 사용하여 건강상태의 변화인식과 건강관련 삶의 질을 측정하였다. 수집된 자료는 변인간의 인과관계 분석을 위해 기술통계분석, 상관관계분석, 신뢰도분석, t-test, ANOVA 및 회귀분석 등에 사용되었다. 연구결과를 요약하면 다음과 같았다. 첫째, 혈액투석노인의 건강관련 삶의 질 총 평점은 57.67이었다. 혈액투석노인의 건강상태에 대한 인식을 작년과 비교하여, 악화된 경우에는 건강관련 삶의 질은 50.63점이었으나, 호전된 노인의 경우에는 62.04점으로 높게 나타났다. 둘째, 혈액투석 노인들 간의 건강관련 삶의 질의 점수는 일반적인 특성 중 성별, 교육정도, 배우자 동거유무, 주수발자, 동반질환수 등에 따라 통계적으로 유의미한 차이를 보이고 있었으며, 또한 건강상태에 대한 인식에 따라 동반질환 수에 있어서도 통계적으로 유의미한 차이를 보였다. 셋째, 혈액투석노인의 건강상태에 대한 인식과 건강관련 삶의 질은 정(+)의 상관관계로 건강상태가 호전 된 것으로 인식할 때 건강관련 삶의 질은 높았고, 동반질환수와 건강관련 삶의 질은 부(-)의 상관관계로 동반질환수가 적을수록 건강관련 삶의 질은 높게 나타났다. 이러한 결과를 바탕으로 혈액투석노인의 건강관련 삶의 질 개선을 위해서는 특성을 고려한 적절한 혈액투석치료와 자기관리를 통해 현재의 건강상태를 유지 증진시키는 것이 무엇보다도 중요하다. 그러므로 적절한 투석치료를 위해 의료서비스를 확대하고, 자기관리를 위한 치료식이, 투약, 일상생활을 영위할 수 있는 생활서비스와 역할상실에 따른 지지와 사회적 고립에 따른 사회적 욕구충족이 반영되는 보건복지통합서비스가 실시되어야 할 것이다.

• 대한간호학회지
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• 제45권1호
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• pp.64-75
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• 2015

Purpose: This study was designed to construct and test structural equation modeling on healthy menopausal transition in middle-aged women in order to identify variables affecting healthy menopausal transition. Methods: Participants, 276 women, 45 to 60 years of age, with menopausal symptom score higher than 5 on the Korean version of Menopause Rating Scale, were recruited in three cities and one county of Gyeongnam Province. Research data were collected via questionnaires and analysed using SPSS version 18.0 and AMOS version 20.0. Results: After confirmatory factor analysis, one of the observed variables was excluded due to relatively low factor loading. The model fit indices for the hypothetical model were suitable for the recommended level: GFI=.93, CFI=.92, RMSEA=.05. Self-efficacy, self-differentiation, and menopausal symptoms explained 67.7% of variance in menopausal transition, and self-differentiation was the most influential factor for menopausal transition. Self efficacy and menopausal symptoms explained 9.6% of variance in menopausal management, although "menopausal symptoms" was not significant. Conclusion: These results suggest that nursing interventions to improve self-differentiation, self efficacy, menopausal management and decrease menopausal symptoms are critical for healthy menopausal transition in middle-aged women. Continued development of a variety of community-based nursing interventions to facilitate healthy menopausal transition is suggested.