• 제목/요약/키워드: Negative stability

검색결과 816건 처리시간 0.031초

지역 금융포용 수준이 새마을금고의 경영지표에 미치는 영향 (The Effect of Regional Financial Inclusion Level on Financial Cooperatives' Management Indicators)

  • 윤상용;김진희;박순홍
    • 아태비즈니스연구
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    • 제13권4호
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    • pp.91-107
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    • 2022
  • Purpose - This study quantitatively examines the level of financial inclusion of a microfinance institution in each region and how this is changing recently, and examines the level of financial inclusion by region and various financial characteristic factors related to it. It was empirically verified what kind of significant impact actually has on the institution's major management performance indicators (stability, profitability, efficiency, and public interest). Design/methodology/approach - It was confirmed that the institution's financial inclusion index declined rapidly after 2015 as a whole, although there were some differences by region depending on regional characteristics. However, considering the fact that the number of branches per 100,000 adult population is steadily increasing nationwide, it was found that, contrary to what is known, the simple decrease in the number of branches of the institution was not the main cause. Findings - The analysis results of this study show that the institution's efforts for financial inclusion have a positive impact on profitability, stability, efficiency, and public interest, and that the institution pursues profitability, efficiency, stability, and public interest. showed that some trade-offs exist. In other words, overall, it was analyzed that profitability of the institution has a positive effect on efficiency, and efficiency has a positive effect on stability and public interest. Research implications or Originality - Since the institution's efforts to improve its profitability do not have a negative impact on its stability and public interest, it is judged that it is important to take a strategic stance, so excessive loan supply that exceeds the scope of the institution's own control needs to be avoided as much as possible. More detailed financial supply strategies and business management capabilities that enhance the asset soundness and management efficiency of safes need to be demonstrated.

Studies on the Formation and Stability of Colloids (II) : pH and Temperature Effects on the Secondary Micelle Formation of Sodium Deoxycholate

  • Park, Joon-Woo;Chung, He-Sson
    • Bulletin of the Korean Chemical Society
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    • 제8권2호
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    • pp.118-122
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    • 1987
  • The micelle formation of NaDC was studied by fluorometric and viscometric measurements. The thermodynamic parameters of the primary and secondary micellization of the bile salt were evaluated. The primary micelle formation was appeared to be an entropy driven process due to hydrophobic effect, while the major driving force for secondary micelle formation of the bile salt is the large negative enthalpy. The secondary micelle provides less hydrophobic environment to pyrene than the primary micelle does. The cooperative aggregation of primary micelles via hvdrogen bond formation was proposed for the secondary micelle formation.

Structure-Activity Relationship Study on Cephalosporins with Mechanism-based Descriptors

  • Jun-Ho Choi;Hojing Kim
    • Bulletin of the Korean Chemical Society
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    • 제14권5호
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    • pp.631-635
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    • 1993
  • The polarizability and the transition state energy of a cephalosporin are assumed to be theoretical indices of the permeability through the outer membrane and of reactivity of ${\beta}$ -lactam ring with penicillin binding proteins, respectively, in Gram-negative bacteria. They are computed by AM1 method and used as variables of quantitative structure-activity relationship study. The results justify quadratic dependence of the activity on the variables. The intersection of difference volumes between $\beta-lactamase$ stable cephalosporins and unstable ones manifests that the steric hindrance of 7-side chain is responsible for the ${\beta}$ -lactamase stability.

Synthetic Cephalosporin Derivatives

  • Oh, Chang-Hyun;Park, Sang-Woo;Cho, Jung-Hyuck
    • Bulletin of the Korean Chemical Society
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    • 제11권4호
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    • pp.323-327
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    • 1990
  • The synthesis and some biological properties of $7{\beta} $-[2-(Z)-(2-aminothiazole-4-yl)-2-(N-substitutedcar bonyl)ethoxyiminoacetamido]-3-vinyl-3-cephem-4- carboxylic acid are described. The effect of substituents on the carbamoly group in the 7-side chain were investigated in order to improve antibacterial activities. Two of these new orally active $7{\beta} $-lactam derivatives showed wide expanded antimicrobial activities against Gram-positive and Gram-negative bacteria, including Pseudomonas aeruginosa, as well as good stability to $7{\beta} $ -lactamases.

정서경험 빈도와 정서조절 방향에 나타난 한국 노인의 정서최적화 특징 (Characteristics of Affective Optimization in Elderly Koreans)

  • 안미소;김혜리
    • 한국노년학
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    • 제37권1호
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    • pp.201-219
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    • 2017
  • 나이가 들면서 남은 인생이 제한적임을 느끼게 됨에 따라 부정정서 경험을 최소화하고 긍정정서 경험을 극대화하는 방향으로 정서조절하게 된다는 사회정서적 선택이론을 한국 성인을 대상으로 검증하였다. 긍정적인 정서의 부정적 측면과 부정적인 정서의 긍정적 측면이 존재함을 인정하는 동양의 변증법적 정서개념에서는 부정정서를 최소화하고 긍정정서를 극대화할 필요성이 크지 않을 수 있다. 따라서 변증법적 정서개념에 기초한 동양문화권의 한국 노인은 긍정정서를 극대화하고 부정정서를 최소화하기보다는 각성을 줄여서 편안한 상태를 유지하는 방향으로 정서 조절할 가능성이 있다. 166명의 청년, 중년, 노인을 대상으로 PANAS 척도를 사용하여 각성수준이 다양한 긍정, 부정 정서경험의 빈도를 평가하였으며, 정서경험 상황에서 정서를 약화/순응/극대화 하는 지에 대해 질문하였다. 노인이 청년보다 부정정서 뿐만 아니라 긍정정서도 덜 빈번하게 경험하였다. 또 정서문항을 각성수준에 따라 분류하여 분석한 결과, 청년들은 고각성 정서를 저각성 정서보다 더 자주 경험하였으나, 노인들은 고각성 정서를 덜 경험하였다. 또 노인은 청년보다 부정정서를 약화시킨다는 반응과 긍정정서를 약화시킨다는 반응을 더 많이 하였다. 이에 반해 긍정정서를 극대화한다는 반응은 청년이 가장 많았다. 이러한 결과는 한국 노인은 각성수준이 높은 긍정정서와 부정정서를 모두 약화시켜서 정서적 안정을 유지함을 시사한다.

암환자와 배우자의 부부적응에 대한 부부의사소통의 영향 - 자기효과와 상대방효과를 중심으로 - (The Effect of Communication on Marital Adjustment of Cancer Patients and their Spouses - Focusing on the Actor Effect and Partner Effect -)

  • 이인정
    • 한국사회복지학
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    • 제63권2호
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    • pp.179-205
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    • 2011
  • 암환자에게 부부적응은 심리적인 안녕 뿐만 아니라 치료경과 및 생존율에 영향을 미치는 것으로 보고되고 있어 이들의 부부적응을 도모하기 위한 사회복지 노력과 관심이 절실히 필요하다 하겠다. 이에 본 연구는 암환자와 배우자의 커플자료를 수집하여 이들의 부부적응에 대해 조사하였으며, 기초자료가 미비한 실정에서 부부관계의 지표로 부부적응에의 필수고려 요인으로 지목되고 있는 부부의사소통의 영향을 조사하였다. 또한 암환자와 배우자의 상호의존성을 고려하여 부부의사소통이 부부적응에 미치는 영향을 자기 자신에게 미치는 영향(자기효과), 상대방에게 미치는 영향(상대방효과)을 고찰하였다. 이를 통해 부부적응에 긍정적 부부의사소통의 중요성을 제시하였으며, 부정적 의사소통 유형인 요구-철회의사소통에서 환자의 배우자에 대한 상대방효과가 유의한 것으로 나타나 환자에 대한 의사소통 교육에의 필요성을 제시하였다. 이러한 연구결과를 바탕으로 실천적 함의 및 후속연구에 대한 제언을 제시하였다.

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Evaluation of the quality stability on the soybean flour depending on storage conditions

  • Park, Sung-Kyu;Son, Na-Young;Kim, Mi-Jung;Chung, Ill-Min
    • 한국작물학회:학술대회논문집
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    • 한국작물학회 2017년도 9th Asian Crop Science Association conference
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    • pp.264-264
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    • 2017
  • Legumes are good sources of various nutrients. Among legumes, soybean and its flour are accessible foods to consumers. However, in case of soybean flour, there is a disadvantage of easily going rancid. Thus, this study aimed to investigate how the quality of soybean flour changes during storage according to the packaging materials and storage temperatures. The raw and roasted soybean flours were packed in two types of packaging, polyethylene (PE) and polypropylene (PP) film bags respectively, and stored at three different storage temperatures (4, 20, and $45^{\circ}C$) for 1 year. The acid value, conjugated diene value, peroxide value, p-anisidine value, thiobarbituric acid (TBA) value, lipoxygenase activity, and fatty acid content of raw and roasted soybean flours were measured at the point of starting storing, and after 1, 2, 4, 8, and 12 weeks of storage. The acid value of soybean flour was increased for 4 weeks and thereafter significantly decreased (p < 0.0001). The conjugated diene value was significantly increased after 4 weeks storage at $45^{\circ}C$ with PE and PP film bags (p < 0.0001). The peroxide value had no changes during 4 weeks storage at $45^{\circ}C$ with PE and PP film bags, and then those was dramatically increased after 8 weeks (p < 0.0001). The p-anisidine values in all of storage conditions were decreased after 4 weeks. Lipoxygenase activity was decreased at 12 weeks storage at $20^{\circ}C$ and $45^{\circ}C$ with PP film bags. Acid value had positive correlations with p-anisidine value (r = 0.30 and p < 0.0001) and lipoxygenase activity (r = 0.36 and p < 0.0001), and had negative correlations with conjugated diene value (r = -0.45 and p < 0.0001) and peroxide value (r = -0.25 and p < 0.001). Conjugated diene value had a high positive correlation with peroxide value (r = 0.76 and p < 0.0001), but that had a negative correlation with lipoxygenase activity (r = -0.51 and p < 0.0001). Peroxide value had negative correlations with p-anisidine value (r = -0.20 and p < 0.01) and TBA value (r = -0.15 and p < 0.05). The degree of reduction in fatty acid content of raw soybean flour was higher than the roasted soybean flour during the storage. Total fatty acid content had positive correlations with acid value (r = 0.45 and p < 0.0001) and p-anisidine value (r = 0.58 and p < 0.0001), but had a weak negative correlation with conjugated diene value (r = -0.19 and p < 0.01). This study showed how the rancidity of the raw and roasted soybean flours progressed during storage. Thus, our findings can be used as base data to do a further study of finding and developing more stable storage conditions of the soybean flour.

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음향 가진된 층류 비예혼합 분류 화염에서 거대 와류 거동에 관한 가시화 연구 (A Visual Investigation of Coherent Structure Behaviour Under Tone-Excited Laminar Non-Premixed Jet Flame)

  • 이기만;오세기;박정
    • 대한기계학회논문집B
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    • 제27권3호
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    • pp.275-285
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    • 2003
  • A visualization study on the effect of forcing amplitude in tone-excited jet diffusion flames has been conducted. Visualization techniques are employed using optical schemes. which are a light scattering photography. Flame stability curve is attained according to Reynolds number and forcing amplitude at a fuel tube resonant frequency. Flame behavior is globally grouped into two from attached flame to blown-out flame according to forcing amplitude: one sticks the tradition flame behavior which has been observed in general jet diffusion flames and the other shows a variety of flame modes such as the flame of a feeble forcing amplitude where traditionally well-organized vortex motion evolves, a fat flame. an elongated flame. and an in-burning flame. Particular attention is focused on an elongation flame. which is associated with a turnabout phenomenon of vortex motion and on a reversal of the direction of vortex roll-up. It is found that the flame length with forcing amplitude is the direct outcome of the evolution process of the formed inner flow structure. Especially the negative part of the acoustic cycle under the influence of a strong negative pressure gradient causes the shapes of the fuel stem and fuel branch part and even the direction of vortex roll-up to dramatically change.

어린이, 청소년 게임 이용자의 심리적 특성이 게임 과몰입에 미치는 영향에 대한 연구 (Exploring the Links between Psychological Traits and Game Immersion in a Children and Adolescent Sample)

  • 박조원;정헌일
    • 한국콘텐츠학회논문지
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    • 제13권11호
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    • pp.665-676
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    • 2013
  • 이 연구에서는 한국콘텐츠진흥원에서 실시한 "게임과몰입 종합 실태조사" 원자료의 2차 분석을 통해 심리 특성이 게임 과몰입에 미치는 영향을 파악하였다. 심리 특성은 정서안정, 자존감, 의지력, 행복감이라는 4개 유형으로 구분되며 연령, 성별, 경제수준, 여가활동 다양성, 친구/가족 관계, 게임이용시간과 함께 독립변인으로 하여 심리불안, 대인관계지장, 일상생활지장, 게임시간 및 욕구통제력 상실이라는 4개의 과몰입 유형에 미치는 영향을 분석하였다. 그 결과 심리 유형과 인구학적 변인, 게임 이용시간, 친구/가족 관계, 여가활동의 다양성 등이 게임 과몰입에 상당히 영향을 미치는 것으로 나타났다. 심리 유형 중 정서적 안정과 자존감 순으로 부(-)의 영향을 미친 것으로 분석되었는데 이는 정서적 안정과 자존감 제고가 게임 과몰입의 위험성을 줄이는데 중요한 요소가 됨을 의미한다. 이를 토대로 어린이, 청소년의 게임 과몰입 문제 해소를 위한 방안들이 논의되었으며 후속 연구 아이디어가 제시되었다.

포항 유봉산업 폐기물 매립지에서의 중력, 자력, VLF 탐사 (Gravity, Magnetic and VLF explorations in the ubong industrial waste landfill, Pohang)

  • 권병두
    • 자원환경지질
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    • 제32권2호
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    • pp.177-187
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    • 1999
  • Gravity, magnetic and VLF surveys were conducted to investigat the structural stability and hazards associated with the Ubong landfill in Pohang City, which has been built to dump industrial wastes. In 1994, the collapse of a bank happened in the 6th landfill site due to sudden heavy rain, and a large quantity of waste materials flowed out to the nearby landfill sites, factories and roads. We used $10{\times}10m$ resolution DEM data for gravity reductions. The maximum variation of the terrain effect in the survey area is about 0.5 mgal and the terrain effect is large in the vicinity of bank boundary. The Bouguer gravity anomaly map shows the effect due to the variatino of thickness and type of waste materials. The small negative gravity anomaly increases from the 9th site to the 6th site. The small negative gravity anomaly of the 9th site reflects the relatively shallow dumping depth of average 14.5 m in this site and increased density of waste materials by the repeated stabilization process of soil overlaying. The 6th site is located at the center of the former valley and rainfall and groundwater are expected to flow from south-east to north-west. Therefore, considering the previous accident of mixing waste and bank materials at the north-west boundary of the landfill, there may be some environmental problems of leakage of contaminated water and bank stability. The complex inversion technique using Simulated annealing and Marquardt-Levenberg methods was applied to calculate three-dimensional density distribution from gravity data. In the case of 6th site, it is apparent that the landfill had been dumped in four sectors. However, most part of the 9th site and showed that high magnetic industrial wastes were concentrated in the 6th site. The result of magnetic survey showing low magnetic anomalies along the boundaries of two sites is similar to that of gravity data. The VLF data also reveals four divided sectors in the 6th site, and overall anomaly trend indicates the directio of former valley.

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