• 사회복지연구
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• 제48권4호
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• pp.187-219
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• 2017

본 연구는 직무스트레스 요인인 장기요양기관 내 위험발생가능성과 감정부조화가 요양보호사의 소진과 이직의도에 미치는 직접효과를 살펴봄과 동시에 스트레스요인들이 소진을 매개로 이직의도에 어떠한 영향을 미치는지 검증하여 요양보호사의 이직의도를 감소시킬 대안을 제시하고자 수행되었다. 이를 위해 노인요양시설 요양보호사 434명에 대한 설문조사자료가 수집되었고, 구조방정식 모형을 구축하여 수집된 자료를 분석한 결과는 다음과 같다. 첫째, 요양보호사가 위험발생가능성을 높게 인식할수록 소진과 이직의도가 높아지는 것으로 나타났다. 둘째, 장기요양기관 내 위험발생가능성은 소진을 매개로 요양보호사의 이직의도에 유의미한 영향을 미쳐 위험발생가능성이 이직의도에 미치는 간접효과가 확인되었고 소진은 두 변수 사이에서 부분매개 역할을 하였다. 셋째, 요양보호사의 감정부조화 현상이 증가할수록 소진의 정도는 높아졌으나 감정부조화가 이직의도에 미치는 직접적인 영향은 없는 것으로 나타났으며 감정부조화와 이직의도사이에서 소진의 완전매개역할이 확인되었다. 넷째, 요양보호사가 경험하는 소진현상이 증가할수록 이직의도는 높아지는 것으로 나타났다. 이상의 결과를 토대로 요양보호사의 이직을 예방하기 위한 제언을 하였다.

• Safety and Health at Work
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• 제8권3호
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• pp.276-281
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• 2017

Background: The present study was carried out to assess the relationship between sickness absence and occupational stress, sleep quality, and amplitude and stability of circadian rhythm as well as to determine contributing factors of sickness absence. Methods: This cross sectional study was conducted on 400 randomly selected employees of an Iranian gas company. The data were collected using Pittsburgh sleep quality index, Karolinska sleepiness scale, circadian type inventory, and Osipow occupational stress questionnaires. Results: The mean age and job tenure of the participants were $33.18{\pm}5.64years$ and $6.06{\pm}4.99years$, respectively. Also, the participants had been absent from work on average 2.16 days a year. According to the results, 209 participants had no absences, 129 participants had short-term absences, and 62 participants had long-term absences. The results showed a significant relationship between short-term absenteeism and amplitude of circadian rhythm [odds ratio (OR) = 6.13], sleep quality (OR = 14.46), sleepiness (OR = 2.08), role boundary (OR = 6.45), and responsibility (OR = 5.23). Long-term absenteeism was also significantly associated with amplitude of circadian rhythm (OR = 2.42), sleep quality (OR = 21.56), sleepiness (OR = 6.44), role overload (OR = 4.84), role boundary (OR = 4.27), and responsibility (OR = 3.72). Conclusion: The results revealed that poor sleep quality, amplitude of circadian rhythm, and occupational stress were the contributing factors for sickness absence in the study population.

• 한국지능정보시스템학회:학술대회논문집
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• 한국지능정보시스템학회 2001년도 The Pacific Aisan Confrence On Intelligent Systems 2001
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• pp.272-277
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• 2001

In this paper, we describe a new method for selecting information sources in a distributed environment. Recently, there has been much research on distributed information retrieval, that is information retrieval (IR) based on a multi-database model in which the existence of multiple sources is modeled explicitly. In distributed IR, a method is needed that would enable selecting appropriate sources for users\` queries. Most existing methods use statistical data such as document frequency. These methods may select inappropriate ate sources if a query contains polysemous words. In this paper, we describe an information-source selection method using two types of thesaurus. One is a thesaurus automatically constructed from documents in a source. The other is a hand-crafted general-purpose thesaurus(e.g. WordNet). Terms used in documents in a source differ from one another and the meanings of a term differ depending on th situation in which the term is used. The difference is a characteristic of the source. In our method, the meanings of a term are distinguished between by the relationship between the term and other terms, and the relationship appear in the co-occurrence-based thesaurus. In this paper, we describe an algorithm for evaluating a usefulness of a source for a query based on a thesaurus. For a practical application of our method, we have developed Papits, a multi-agent-based in formation sharing system. An experiment of selection shows that our method is effective for selecting appropriate sources.

• Structural Engineering and Mechanics
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• 제53권5호
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• pp.881-896
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• 2015

In this study, a method for fatigue performance estimation of deepwater steel catenary riser (SCR) under short-term vortex-induced vibration was investigated for selected S-N curves. General tendency between S-N curve capacity and fatigue performance was analysed. SCRs are generally used to transport produced oil and gas or to export separated oil and gas, and are exposed to various environmental loads in terms of current, wave, wind and others. Current is closely related with VIV and it affects fatigue life of riser structures significantly. In this regards, the process of appropriate S-N curve selection was performed in the initial design stage based on the scale of fabrication-related initial imperfections such as welding, hot spot, crack, stress concentration factor, and others. To draw the general tendency, the effects of stress concentration factor (SCF), S-N curve type, current profile, and three different sizes of SCRs were considered, and the relationship between S-N curve capacity and short-term VIV fatigue performance of SCR was derived. In case of S-N curve selection, DNV (2012) guideline was adopted and four different current profiles of the Gulf of Mexico (normal condition and Hurricane condition) and Brazil (Amazon basin and Campos basin) were considered. The obtained results will be useful to select the S-N curve for deepwater SCRs and also to understand the relationship between S-N curve capacity and short-term VIV fatigue performance of deepwater SCRs.

• 한국콘텐츠학회논문지
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• 제15권10호
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• pp.193-204
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• 2015

본 연구는 노인장기 요양 서비스 과정에서 행하게 되는 요양보호사의 노인차별이 노인학대에 미치는 영향을 확인하고, 노인차별과 노인학대의 인과관계에서 공적 기관 상담의 매개 효과를 규명하기 위해 시도한 연구이다. 경상남도에 있는 노인장기 요양기관에 근무하는 요양보호사 627명을 대상으로 구조화된 설문지를 사용하여 자료를 수집하였으며, Baron과 Kenny(1986)의 방법에 의해 다중회귀분석을 이용하여 분석하였다. 노인차별이 노인학대에 유의한 영향을 미치고 있었으며, 분석결과 공적 기관 상담이 노인차별과 노인학대의 관계상에서 유의한 부분 매개 효과가 있는 것으로 나타났다. 이러한 연구결과를 바탕으로 노인차별에 따른 노인학대를 공적 기관 상담을 통하여 감소시킬 수 있다는 것을 확인하였으며, 노인차별과 공적 기관 상담에 대한 몇 가지 실천적 함의를 제시하였다.

• 대한한의학원전학회지
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• 제29권2호
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• pp.203-212
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• 2016

Objectives : In order to infer the effect of blood-activating and stasis-dispelling herbs by the analysis of effect terms which have extracted and refined, based on five tastes. Methods : I extracted the effect terms and five tastes of blood-activating and stasis-dispelling herbs written in Herbology. Extracted effect terms was divided into single meaning term and was refined as typical term. After that, I sorted herbs according to the five tastes and find the most highly mentioned effect terms. And I infered each herb's effects based on the relationship between five tastes and most highly mentioned terms. Results & Conclusions : I extracted 5 tastes and 53 effect terms and refined it as 43 effect terms. As the result of analyzing the effect term based the tastes, blood-activating and stasis-dispelling herbs are usually have blood-activating and pain-relieving. The herbs that have the hot taste, have the effect of moving-qi, stasis-breaking and aggregation-dispersing. And I supposed new effects of 5 kinds of herbs among them. The herbs that have the sweet tastes, have the effect of stasis-dispelling. And I supposed new effects of 2 kinds of herbs among them by analyzing the relationship between the tastes and effect terms.

• 한국수자원학회논문집
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• 제46권2호
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• pp.139-153
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• 2013

고르지 않은 바닥을 지나는 천수 흐름을 해석하기 위해 천수방정식의 흐름률 경사항과 바닥 경사 생성항에 대해 HLLL 기법과 DFB(Divergence Form for Bed slope source term) 기법을 각각 적용하여 유한체적 모형을 구성하였다. 또한, PSC(Partially Submerged Cell)의 고려를 위해 VFR(Volume/Free-surface Relationship)도 이용하였다. MUSCL에서 WSDGM(Weighted Surface-Depth Gradient Method)을 보다 단순하게 고쳐도 원래의 방법과 정확도가 동등함을 1차원 정상 흐름에 대해 확인하였다. 1차원 PSC에 대한 VFR를 통해 흐름률 경사항과 바닥 경사 생성항의 선평형성이 정확하게 충족됨을 입증하였다. 2차원 PSC에서 DFB 기법으로는 지배방정식의 선평형성이 충족되지 않은 문제를 삼각형 격자에 대한 VFR를 이용하여 해소하였다. 삼각형 턱과 둥근 융기를 지나는 2차원 댐 붕괴 흐름에 대한 모의에서 실험실 실험 결과와 잘 부합됨을 확인하였다. 또한, 부분 댐 붕괴 흐름에 대한 모형의 적용에서 경사면은 물론 불규칙 바닥에서도 요철의 잠김이 성공적으로 모의되었다. 따라서 고르지 않은 실제 하천 지형에 대한 이 모형의 적용성이 기대된다.

• 한국융합학회논문지
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• 제8권6호
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• pp.325-336
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• 2017

이 연구는 장기요양기관 노인의 일상스트레스, 자아탄력성, 삶의 질 변인 간 인과관계 모델을 설정하고 경로분석을 실시하였다. 수도권에 소재한 민간 노인장기요양기관의 이용자를 대상으로 최종 380명을 SPSS 22.0과 AMOS 22.0을 이용하여 일상스트레스, 자아탄력성, 삶의 질 변인 간 관계를 분석하였다. 연구결과, 첫째, 노인의 일상스트레스는 삶의 질에 부(-)적인 직접 효과가 있는 것으로 나타났다. 둘째, 노인의 자아탄력성은 삶의 질에 정(+)적인 직접 효과가 있었다. 셋째, 노인의 일상스트레스는 자아탄력성에 정(+)적인 직접 효과가 나타났다. 넷째, 노인의 자아탄력성을 매개로 일상스트레스는 삶의 질에 간접 효과 및 부분 매개 효과가 있는 것으로 나타났다. 따라서, 노인의 삶의 질을 향상하기 위해서는 일상스트레스를 감소하고 자아탄력성을 높이기 위한 프로그램 개발 및 제도적 지원 방안이 필요하다.

• 가족자원경영과 정책
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• 제21권3호
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• pp.121-139
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• 2017

This study aimed to explore the moderating effect of social support resources on the life satisfaction and caregiving burden of family caregivers taking care of the elderly in long-term care services. The study participants were selected from among the family caregivers utilizing 30 home care centers in Seoul, Korea. Of the candidates who agreed to participate in the study, 250 caregivers who had supported the elderly at home for at least 6 months were selected. The data collected were analyzed using SPSS ver. 21.0. The study findings were as follows. First, the whole family caregivers' caregiving burden of family caregivers was found to be slightly higher than the median value. More specifically, the physical burden was the heaviest, followed by the family relationship burden, the social activity burden, the emotional burden, and the financial burden. Social support resources and life satisfaction were found to be a little bit higher than the median value. Second, the variables that statistically significantly increased life satisfaction, starting with the strongest effect, were a lower psycho emotional burden, greater informational support resources, a lower economical burden, greater emotional support, a younger caregiver age, a higher monthly income, and a shorter care period. Third, informational support resources were found to have a moderating effect on the relationship between the support burden and life satisfaction. The more the participants used the informational support resource subcategory of the social support resources, the narrower the life satisfaction decrease, even though the caregivers felt a support burden. Informational support resources appear to have a statistically significant buffering effect.

• 수산경영론집
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• 제52권2호
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• pp.55-67
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• 2021

Global warming affects critical natural resources, one of which is the oceans that occupy 70% of the total cover of the earth. In other words, ocean warming is a subset of global warming which needs to be addressed urgently. Purple laver (pyropia spp.) is one of the most vulnerable items to climate change although it is a major export product of Korean fisheries. The purpose of this study is to analyze the causality of how climate change caused by global warming affects the increase or decrease of PLP (purple laver production). The target area for analysis was set to Maro-hae between Jindo-gun and Haenam-gun. We selected marine environmental factors and meteorologic factors that could affect PLP as variables, as well as co-integration tests to determine long-term balance, and the Granger causticity tests. As a result, PLP and marine environmental factors WT (water temperature), pH, and DO confirmed that long-term equilibrium relationships were established, respectively. However, there is only causality with WT and it is confirmed that there is only a correlation between pH and DO (dissolved oxygen). There was no long-term equilibrium relationship between PLP and HDD (heating degree days) and there is a causal effect that HDD affects PLP; however, it was less clear than that of WT. The relationship between PLP and RF (rainfall), WS (wind speed), SS (percentage of sunshine), and FF (farm facilities) was all balanced in the long term, and causality exists. Based on the results of the analysis, policy proposals were made.