• Title/Summary/Keyword: Adjustments

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Comparison of Adjustments to Drought Stress Among Seedlings of Several Oak Species

  • Kim, Joon-Ho
    • Journal of Plant Biology
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    • v.37 no.3
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    • pp.343-347
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    • 1994
  • In order to compare the adjustment of 6 oak species to water stress, the components of water status, tissue elastic modulus, free proline content of leaves and morphological characteristics were determined in pot culture. uercus dentata and . mongolica responded effectively to drought with high root : shoot (R/S) ratio or maintenance of high turgor pressure by large and fast osmotic adjustment and . variabilis with maintenance of high turgor pressure by low elastic modulus under drought. Meanwhile, . aliena and . serrata responded effectively with low omotic potential (Ψo) at full saturation and . acutissima with long root in spite of rigid cell wall and high osmotic potential (Ψo) at full saturation. Proline content in leaves of . dentata, . mongolica and . aliena increased early and rapidly at high leaf water potential (Ψleaf). The results indicate that 6 oak species have adjustment different from each other to water stress.

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THE IMPORTANCE OF PATIENT-SPECIFIC DOSE CALCULATIONS IN NUCLEAR MEDICINE

  • Stabin, Michael G.
    • Nuclear Engineering and Technology
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    • v.40 no.7
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    • pp.527-532
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    • 2008
  • As therapeutic uses of radionuclides in nuclear medicine increases, the use of patient-specific methods for calculation of radiation dose becomes more important. In this manuscript basic methods and resources for internal dose calculations are outlined, with a focus on how current changes and advances are making more accurate and detailed, patient-individualized dose calculations possible. Most current resources make use of standardized models of the human body representing median individuals, but the use of image-based and more realistic models will soon take their place, and will permit adjustments to represent individual patients and tailor therapy planning uniquely for each subject.

The Changing Role of Government Research Institutes in Innovation Systems

  • Guinet, Jean
    • STI Policy Review
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    • v.1 no.1
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    • pp.63-92
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    • 2010
  • Recent years have seen an intensified discussion in many OECD countries about the role and mission of public research in the innovation system. This discussion takes place in quite specific national contexts, but should benefit from international experience. However, whereas voluminous literatures address the changing governance methods, organizational forms and missions of universities, much less attention has been devoted to developing a common understanding of the challenges faced by non-university public research institutions. The main goals of this paper is to contribute to clarifying the nature of these challenges, outlines possible policy answers and draws some implications for Korea. In the first section, the paper uses available internationally comparable indicators to review trends in the contribution of government research institutes (GRIs) to R&D and innovation activities. In the second section, the paper identifies the current major changes in the dynamics of innovation that may call for further adjustments in the positioning, organization and steering of public research institutes. Finally, the paper outlines some strategic objectives and orientations for the reform of public research institutes as part of the broader agenda of the Korean innovation strategy.

Correlation between Mental Adjustment to Cancer and Anxiety (암환자의 대응양식과 불안과의 관계)

  • Oh, Pok-Ja
    • Asian Oncology Nursing
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    • v.9 no.1
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    • pp.23-30
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    • 2009
  • Purpose: This study was to identify the relationship between mental adjustment to cancer and anxiety. Method: This study used a cross-sectional descriptive design. A total of 124 ambulatory cancer patients completed the Mental Adjustment to Cancer (MAC) scale and Hospital Anxiety and Depression Scale (HADS). Data were analyzed using descriptive statistics, t-test, ANOVA and Pearson correlation. Results: There was a significantly negative correlation between anxiety and fighting spirit which was adaptive adjustment to cancer (r=-0.29, p<0.001). However, anxiety had significantly positive correlation with helplessness/hopelessness (r=0.38, p<0.001), anxious preoccupation (r=0.55, p< 0.001), and fatalism (r=0.22, p<0.05) to cancer. Conclusion: Cancer patients' mental adjustment is correlated with the degree of the psychosocial distress. Anxious preoccupation and helplessness/hopelessness are the most maladaptive adjustments whereas fighting spirit is one of the most adaptive adjustment to cancer.

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High-flow nasal cannula oxygen therapy in children: a clinical review

  • Kwon, Ji-Won
    • Clinical and Experimental Pediatrics
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    • v.63 no.1
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    • pp.3-7
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    • 2020
  • High-flow nasal cannula (HFNC) is a relatively safe and effective noninvasive ventilation method that was recently accepted as a treatment option for acute respiratory support before endotracheal intubation or invasive ventilation. The action mechanism of HFNC includes a decrease in nasopharyngeal resistance, washout of dead space, reduction in inflow of ambient air, and an increase in airway pressure. In preterm infants, HFNC can be used to prevent reintubation and initial noninvasive respiratory support after birth. In children, flow level adjustments are crucial considering their maximal efficacy and complications. Randomized controlled studies suggest that HFNC can be used in cases of moderate to severe bronchiolitis upon initial low-flow oxygen failure. HFNC can also reduce intubation and mechanical ventilation in children with respiratory failure. Several observational studies have shown that HFNC can be beneficial in acute asthma and other respiratory distress. Multicenter randomized studies are warranted to determine the feasibility and adherence of HFNC and continuous positive airway pressure in pediatric intensive care units. The development of clinical guidelines for HFNC, including flow settings, indications, and contraindications, device management, efficacy identification, and safety issues are needed, particularly in children.

A Study on the Role of Korean Credit Rating Agencies (신용평가사의 역할에 대한 고찰 : 사건연구를 통한 분석)

  • Ryu, Doowon;Ryu, Doojin;Yang, Heejin;Hong, Kyttack
    • Journal of the Korean Operations Research and Management Science Society
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    • v.40 no.4
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    • pp.123-144
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    • 2015
  • Through the event study methodology and the case study on the Company T and its subsidiaries, this study analyzes the effect of credit rating downgrade in the Korean stock market. Our empirical results cast some doubts on whether credit rating agencies made adequate credit rating adjustments on the Chaebol companies, and suggest that little information was provided to the bond market investors. This study provides some policy implications by recommending that regulators encourage credit rating agencies to provide more accurate and appropriate information to market participants.

A Case Study on BSC(Balanced Score card) Implementation in Quasi-governmental organization ; Focused on the Case of FIRA (Korea Fisheries Resources Agency) (준정부기관의 성과관리시스템(BSC) 도입 사례 연구 - 한국수산자원관리공단 사례를 중심으로 -)

  • Cho, Sun-Je;Lee, Jin-Soo;Hong, Jae-Bum
    • The Journal of Fisheries Business Administration
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    • v.46 no.1
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    • pp.121-143
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    • 2015
  • This study focuses on the case of FIRA(Korea Fisheries Resources Agency) and analysis the introduction effect of BSC(Balanced Score card) implementation. So it will set forth the improvement method and the implications for Quasi-governmental organizations which are trying to introduce or are operating the BSC system. This study suggests how to improve the problems of BSC as below : (1) Building of reasonable and balanced evaluation index system (2) Acquiring of comparability and equality through adjustments of group evaluated (3) Enhancing of competence and professionalism of evaluating group (4) Alleviating of difference gap of performance incentives and promoting of non-money incentives (5) Enhancing of positive acceptance and recognition for BSC.

An FCA-mediated epigenetic route towards thermal adaptation of autotrophic development in plants

  • Lee, Hyo-Jun;Ha, Jun-Ho;Park, Chung-Mo
    • BMB Reports
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    • v.50 no.7
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    • pp.343-344
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    • 2017
  • Plants are able to recognize even small changes in surrounding temperatures to optimize their growth and development. At warm temperatures, plants exhibit diverse architectural adjustments, including hypocotyl and petiole elongation, leaf hyponasty, and reduced stomatal density. However, it was previously unknown how such warm temperatures affected the early stages of seedling development. In our recent study, we demonstrated that the RNA-binding protein, FCA, is critical for sustaining chlorophyll biosynthesis during early seedling development, which is a prerequisite for autotrophic transition at warm temperatures. FCA plays a dual role in this thermal response. It inhibits the rapid degradation of protochlorophyllide oxidoreductases (PORs) that mediate chlorophyll biosynthesis. In addition, it induces the expression of POR genes at the chromatin level, which contributes to maintaining functional enzyme levels. Our findings provide molecular basis for the thermal adaptation of chlorophyll biosynthesis during the early stages of seedling development in nature.

Evolutionary Computation for the Real-Time Adaptive Learning Control(II) (실시간 적응 학습 제어를 위한 진화연산(II))

  • Chang, Sung-Ouk;Lee, Jin-Kul
    • Proceedings of the KSME Conference
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    • 2001.06b
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    • pp.730-734
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    • 2001
  • In this study in order to confirm the algorithms that are suggested from paper (I) as the experimental result, as the applied results of the hydraulic servo system are very strong a non-linearity of the fluid in the computer simulation, the real-time adaptive learning control algorithms is validated. The evolutionary strategy has characteristics that are automatically. adjusted in search regions with natural competition among many individuals. The error that is generated from the dynamic system is applied to the mutation equation. Competitive individuals are reduced with automatic adjustments of the search region in accord with the error. In this paper, the individual parents and offspring can be reduced in order to apply evolutionary algorithms in real-time as the description of the paper (I). The possibility of a new approaching algorithm that is suggested from the computer simulation of the paper (I) would be proved as the verification of a real-time test and the consideration its influence from the actual experiment.

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Statistical Process Control and Adjustment using Process Incapability Index (공정비능력지수를 이용한 통계적 공정관리와 조정)

  • 구본철
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.24 no.63
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    • pp.45-54
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    • 2001
  • The process capability indices have been widely used in manufacturing industries to provide numerical measures of process potential and performance. This study is concerned with process controls and adjustments by incapability index $C_{pp}$ and its sub-indices. A monitoring for $\^{C}_{pp}$ would provide a convenient way to monitor changes on process capability after statistical control is established, since $C_{pp}$ simultaneously measures process variability and centering. Further, we can separate charting of process location and variability by sub-indices of $C_{pp}$, ($C_{ia}$, $C_{ip}$), without returning to $\={x}$-R chart, even though an out-of-control signals on $\^{C}_{pp}$ control chart is found.

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