• 임상간호연구
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• 제18권3호
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• pp.402-412
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• 2012

Purpose: The purpose of this study was to explore influencing factors of dysfunctional beliefs and emotion regulation strategy for nurses' problem solving ability. Methods: This study was a cross-sectional design with a sample of 745 nurses from 1 university hospital located in Gyeonggido. The scales were Dysfunctional Beliefs Test (70 items), Emotion Regulation Strategy Questionnaire (25 items) and Social Problem Solving Inventory (52 items). The data were analyzed using SPSS 17.0 employing ANOVA, pearson correlation coefficients and multiple regression analysis. Results: The mean score for problem solving ability was 11.26 points. Influencing factors for nurses' problem solving ability were identified as 'active regulation style' in emotion regulation strategy and 'negative concept of social self' in dysfunctional beliefs. Conclusion: It is plausible to assume that dysfunctional beliefs which are vulnerability factors in cognitive variables and emotion regulation strategy affect nurses' problem solving ability.

• 대한의용생체공학회:의공학회지
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• 제28권4호
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• pp.503-511
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• 2007

Heart rate variability(HRV) is the clinical consequence of various influences of the autonomic nervous system(ANS) on heart beat. HRV can estimate the potential physiologic rhythm from the interval between consecutive beats(RR interval or HRV data), but cardiovascular system governed by ANS is in relation to respiration and autonomic regulation. It is known as RSA representing respiration-related HR rhythmic oscillation. Because the mechanism linking the variability of HR to respiration is complex, it has so far been unknown well. In this paper, we tried to evaluate 5-min RR interval segments under control of respiration in order to find out a proper respiration rate that can estimate the ANS function. 10 healthy volunteers were included to evaluate 5-min HRV data under 4 different respiration-controlled environments; 0.03Hz, 0.1Hz, 0.2Hz, and 0.4Hz respiration. HRV data were analyzed both in the frequency and the time domain, with cross-correlation coefficient(cross-coeff.) for HRV and respiration signal. The results showed maximum cross-coeff. of 0.84 at 0.1 Hz and minimum that of 0.16 at 0.4Hz respiration. Cross-coeff was decreased at a faster rate from 0.1Hz respiration. All mean SDNN, RMSSD, and pNN50 of time domain measures were 108.7ms, 71.85ms, and 28.47%, respectively, and LF, HF, and TP of frequency domain measures were $12,722ms^2,\;658.8ms^2$, and $7,836.64ms^2$ at 0.1Hz respiration, respectively. In conclusion, 0.1Hz respiration was observed to be very meaningful from time domain and frequency domain analysis in relation to respiration and autonomic regulation of the heart.

• 한국언론정보학보
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• 제56권
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• pp.71-85
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• 2011

이 논문은 1987년 정간법 제정을 계기로 구축된 신문의 소유규제 제도가 2005년 신문법으로 전부 개정되면서 강화되었고, 2009년에 다시 개정되면서 위기에 직면하게 되는 과정을 언론법제사적 측면에서 검토한다. 1987년, 헌법 제21조 제3항의 신문기능 법정주의에 근거해서 정립된 신문의 소유규제 제도는 2005년 신문법으로 강화되었다가 2006년 신문법 헌법소원 결정에 따라 위축되기 시작한다. 2009년 신문법과 방송법이 개정되면서 신문 방송 겸영 규제, 복수신문 소유 규제 등은 존재하지 않게 되었다. 그 과정에서 야당도 신문방송의 제한적인 교차소유를 허용하였기 때문에 1987년에 형성된 신문소유 규제 제도는 해체 위기에 직면했다. 신문방송의 교차소유 허용 등의 규제완화가 미디어환경의 변화와 여론지배력의 추이 등을 장기적으로 검토하고 결정해야 할 정책적인 사안임에도 불구하고 이렇게 단기간에 도입하는 것은 위험한 일이다. 신문은 정치여론 형성에 있어서 지상파방송과 함께 강력한 미디어이다. 신문여론시장을 과점하고 있는 신문들의 여론지배력이 보도방송 영역까지 전이될 수 있다는 우려를 무시하기 어렵기 때문이다. 미디어소유 집중으로 정치적 다원주의가 위축되어 궁극적으로 민주주의가 위협받을 개연성이 있다는 점에서 신문 소유규제의 완화는 장기적인 사회적 논의가 전제되어야 할 것이다.

• Molecules and Cells
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• 제38권7호
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• pp.597-603
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• 2015

Biosynthesis of the phytohormone ethylene is under tight regulation to satisfy the need for appropriate levels of ethylene in plants in response to exogenous and endogenous stimuli. The enzyme 1-aminocyclopropane-1-carboxylic acid synthase (ACS), which catalyzes the rate-limiting step of ethylene biosynthesis, plays a central role to regulate ethylene production through changes in ACS gene expression levels and the activity of the enzyme. Together with molecular genetic studies suggesting the roles of post-translational modification of the ACS, newly emerging evidence strongly suggests that the regulation of ACS protein stability is an alternative mechanism that controls ethylene production, in addition to the transcriptional regulation of ACS genes. In this review, recent new insight into the regulation of ACS protein turnover is highlighted, with a special focus on the roles of phosphorylation, ubiquitination, and novel components that regulate the turnover of ACS proteins. The prospect of cross-talk between ethylene biosynthesis and other signaling pathways to control turnover of the ACS protein is also considered.

• 한국IT서비스학회지
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• 제18권5호
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• pp.183-191
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• 2019

The purpose of this study is to compare the impulsive purchasing tendency of Korean and U.S. college students. In particular, the study examined the effects of self-regulated learning and self-regulated consumption on college students' impulsive buying tendency. A total of 680 valid samples were obtained from online self-reported surveys in Korea and the United States. Both self-regulated learning and self-regulated consumption (self-control and self-supervision) were higher in US college students than Korean students. Self-regulated learning did not influence impulsive purchasing tendency. However, the impulsive purchasing tendency increased as the level of self-supervision among self-regulated consumption decreased. When purchases were made in stores, impulsive purchasing tendency increased in both South Korea and the US. Therefore, it is necessary to make efforts to decrease the impulsive purchasing tendency by fostering self-regulated consumption capacity of college students through consumer education.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 추계학술대회 논문집 전기기기 및 에너지변환시스템부문
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• pp.185-187
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• 2004

In many multiple output SMPS, the cross regulation between the output voltage is so poor that the linear regulator is usually added to avoid this problem. Therefore, manufacturing cost is increased. In this paper, the TTFC(Two Transistor Forward Converter) using the magamp was presented to obtain better cross regulation between the multiple output SMPS. Also, as the synchronous rectifier was applied in the secondary section, whole efficiency can be improved. In this paper, the mode analyses in steady slate and experimental results of the prototype to verify the validity of the presented converter are presented and discussed.

• 전력전자학회논문지
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• 제17권4호
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• pp.281-290
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• 2012

This paper describes a Cross-regulation characteristics of a multi-output LLC resonant converter widely used in consumer electronics. The output characteristics of the multi-output LLC converter is derived from the assumption that the current and voltage in the resonant network is sinusoidal and the duty loss exists. The simulation and experimental results are provided to verify the theoretic results.

• 비교문화연구
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• 제38권
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• pp.405-431
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• 2015

The purpose of this paper is to investigate how to decide pronunciation of loanwords in Korean language. There has not been a regulation for pronunciation of loanwords in Korean language. Even the dictionary published by the government does not provide any information about the pronunciation of loanwords. In this paper, some actual solutions are suggested for the pronunciation of loanwords. Korean language has Regulations of Standard Korean, Korean Orthography, Regulations on Hangeul Transcriptions on Loanwords and Pronunciation Methods of Standard Korean. These language standards could help to decide pronunciation of loanwords. Some pronunciations which could not be regulated by them must be presented in the standard pronunciation dictionary. For example, glottalization rule of 's' in many loanwords could be presented in the description of each loanword in the dictionary. However the pronunciation of loanwords must be similar to the spelling. If various pronunciations are allowed to one spelling, then people will be so confused by the discrepancy between pronunciation and spelling of loanwords.

• 생명과학회지
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• 제14권1호
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• pp.188-192
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• 2004

Toluene tolerance and therrnotolerance in Crampositive organic solvent resistant bacterium Micrococcus sp. BCNU 121 has been studied. Exposure to a sub- lethal temperature or a sub-lethal concentration of toluene conferred protection to subsequent challenges with a killing temperature or a lethal concentration of toluene, respectively. Pretreatment of Micrococcus sp. BCNU 121 with sub-lethal concentrations of toluene induced adaptative protection against heat shock. Moreover, temperature-adaptative cells also showed cross-resistance to lethal doses of toluene. These data suggested a cross-regulation between toluene tolerance and heat shock response.

• 전력전자학회논문지
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• 제12권6호
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• pp.433-440
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• 2007

에너지 절약과 환경 문제가 이슈화되면서 대표적인 전원공급장치인 SMPS의 대기모드 효율이 중요시되고 있다. 특히 많은 SMPS들이 다출력 구조로 설계됨에 따라 대기모드에서 전력손실을 줄이기가 쉽지 않다. 본 논문에서는 SSPR(Secondary Side Post Regulator)을 개발하여 단일 컨버터에서 Cross Regulation과 대기전력을 함께 해결하였다. 그리고, 다중 컨버터의 대기전력 감소를 위하여 전류모드 제어와 Power Sequence 제어기술을 제안한다. 제안된 기술은 이론적 해석과 더불어 120[W], 270[W]급 SMPS에 적용하여 그 타당성 및 우수성을 검증하였다.