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유홍성(Yoo, Hong-Sung),남승균(Nam, Seung-Kyun),신진영(Shin, Chin-Young),임영숙(Lim, Young-Sook) 인천대학교 인천학연구원 2014 인천학연구 Vol.21 No.-
본 연구는 주민참여예산제도 활성화 방안에 대한 요인을 도출하고 도출된 요인을 관련 공무원과 주민참여예산 위 원들의 설문조사를 통해 실증분석 하고, 또한 인천 남구 주민참여예산제도 운영에 대한 분석을 하였다. 연구결과 주민참여예산에 관한 요인은 ‘주민참여예산제도 기반형성’, ‘주민참여예산제도 성공요인’으로 구분됨을??확인하였고 이들 차원과 주민참여예산제도 시행효과의 인과관계와 각 요인에 대해 관련 공무원과 주민참여예산??위원들 두 집단이 차이가 있는지를 살펴본 결과 주민참여예산제도 기반형성과 주민참여예산제도 성공요인이 주민 참여예산제도 시행효과에 통계적으로 유의하게 나타났다. 또한 각 요인에 대한 관련 공무원과 주민참여예산 위원 들 두 집단에 대한 차이분석 결과 통계적으로 유의하게 차이가 있음을 확인하였다. 추가적으로 공무원과 주민참여 예산 위원들 각각 회귀분석 비교분석 결과 공무원은 주민참여예산제도 성공요인을 중요하게 생각하고 있으며, 위 원들은 기반형성 구축이 주민참여예산제도 시행효과에 더 중요하게 영향을 미치는 것으로 인식하고 있다, 주민참 여예산제도의 활성화를 위해서는 참여가치에 대한 공감대, 지역사회나 관련조직의 의견수렴, 교류를 위한 네트워 크 구축 등의 기반형성과 주민참여예산제도의 범위를 예산편성에서 예산 전반의 참여권한 확대가 필요하고, 공무 원의 적극적인 지원 활동 등 주민참여예산제도 성공요인 관리가 필요하다. This study derived factors related to the activation of citizen participatory budgeting, analyzed the factors??positively through a questionnaire survey of involved civil servants and participatory budgeting committee??members, and made analysis of participatory budgeting system for operation in the Incheon Nam-Gu area. According to the results of this study, factors related to participating budgeting were largely divided into??‘footing of citizen participatory budgeting’ and ‘success factors of citizen participatory budgeting.’ In the??results of examining the causal relationship between these dimensions and the effect of citizen participatory??budgeting system and seeing if there was any difference in each factor between involved civil servants and??participatory budgeting committee members, footing of citizen participatory budgeting and the success factors??of citizen participatory budgeting were statistically significantly correlated with the effect of citizen participatory??budgeting sysytem. In addition, a statistically significant difference was observed in each factor between??involved civil servants and participatory budgeting committee members. In additional comparative regression??analysis between civil servants and participatory budgeting committee members, civil servants attached more??importance to the success factors of citizen participatory budgeting, but committee members considered the??footing of the system more important for the effect of citizen participatory budgeting. What are required for the??activation of citizen participatory budgeting system are consensus on the value of participation, opinion??collection from communities and related organizations, construction of networks for exchange, and the??extension of the scope of participatory budgeting from budgeting to the whole range of budget?related areas.??What is more, the success factors of participatory budgeting including civil servants’ active support need to be??managed properly.
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Crystallographic Analysis of Ar Encapsulate within Cs<sub>3</sub>-A Zeolite
Lim, Woo Taik,Kim, Bok Jo,Park, Jong Sam,Chang, Chang Hwan,Jung, Sung Wook,Heo, Nam Ho The Korean Society of Analytical Science 2002 분석과학 Vol.15 No.6
The arrangement of encapsulated Ar atoms in the molecular-dimensioned cavities of fully dehydrated zeolite A of unit-cell composition $Cs_3Na_8HSi_{12}Al_{12}O_{48}$ ($Cs_3$-A) has been studied crystallographically to probe the confinement effect of guest species in microporous environment. Atoms of Ar were encapsulated in the cavities of $Cs_3$-A by treatment with 410 atm of Ar at $400^{\circ}C$ for two days, followed by cooling at room temperature. The crystal structure of $Cs_3Na_8H$-A(4Ar) ($P_e$ = 410 atm, $a=12.245(2){\AA}$, $R_1=0.0543$, and $R_2=0.0552$) has been determined by single crystal X-ray diffraction technique in the cubic space group $Pm\bar{3}m$ at 21 (1) $^{\circ}C$ and 1 atm. Encapsulated Ar atoms are distributed in three crystallographic distinct positions: 1.5 Ar atoms per unit cell opposite 6-rings, 1.5 opposite four-rings in the large cavity, and finally 1.0 in the sodalite-unit. The possible structures of argon clusters, such as $Ar_2$, $Ar_3$, and $Ar_4$, are proposed.
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Electrochemical Properties of Electrodeposited Sn Anodes for Na-Ion Batteries
Nam, Do-Hwan,Hong, Kyung-Sik,Lim, Sung-Jin,Kim, Tae-Hee,Kwon, Hyuk-Sang American Chemical Society 2014 The Journal of Physical Chemistry Part C Vol.118 No.35
<P>The electrochemical properties and sodiation/desodiation mechanism of Sn electrodes prepared by electrodeposition were investigated for Na-ion batteries. The sodiation of the electrodeposited Sn electrodes proceeded via three conjugated reactions in the cutoff voltage range of 0.001–0.65 V, as follows: the β-Sn phase, which contains a small amount of Na, was sodiated into amorphous NaSn, and crystalline Na<SUB>9</SUB>Sn<SUB>4</SUB> and Na<SUB>15</SUB>Sn<SUB>4</SUB> were then formed sequentially. However, the cycle performance of the electrode was highly dependent on the morphologies and the crystallographic orientations of the electrodeposits. The Sn electrode composed of coarse particles had the poor cycle performance due to the electrical isolation of Sn caused by the large volume changes during cycling. In contrast, the thin-layered Sn electrode exhibited a stable cycle performance in which the charge capacity was maintained at 607.51 mAh g<SUP>–1</SUP> after 40 cycles, which corresponds to 98.21% of its initial charge capacity. The improvement in the cyclability of the layered Sn electrode was attributed not only to reduced structural degradations by restricting the cutoff voltage but also to an improved bond between the Sn electrodeposit and the Cu substrate.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jpccck/2014/jpccck.2014.118.issue-35/jp504055j/production/images/medium/jp-2014-04055j_0009.gif'></P>
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Sang-Ki Park,정인철,Won Kyung Lee,Young Sun Lee,Hyoung Kook Park,고효진,김기성,Nam Kyoo Lim,Jin Tae Hong,Sun Yung Ly,Seok Seon Rho 한국식품영양과학회 2011 Journal of medicinal food Vol.14 No.4
A combination of green tea extract and L-theanine (LGNC-07) has been reported to have beneficial effects on cognition in animal studies. In this randomized, double-blind, placebo-controlled study, the effect of LGNC-07 on memory and attention in subjects with mild cognitive impairment (MCI) was investigated. Ninety-one MCI subjects whose Mini Mental State Examination-K (MMSE-K) scores were between 21 and 26 and who were in either stage 2 or 3 on the Global Deterioration Scale were enrolled in this study. The treatment group (13 men, 32 women; 57.58 ± 9.45 years) took 1,680 mg of LGNC-07, and the placebo group (12 men, 34 women; 56.28 ± 9.92 years) received an equivalent amount of maltodextrin and lactose for 16 weeks. Neuropsychological tests (Rey–Kim memory test and Stroop color–word test) and electroencephalography were conducted to evaluate the effect of LGNC-07 on memory and attention. Further analyses were stratified by baseline severity to evaluate treatment response on the degree of impairment (MMSE-K 21–23 and 24–26). LGNC-07 led to improvements in memory by marginally increasing delayed recognition in the Rey–Kim memory test (P = .0572). Stratified analyses showed that LGNC-07 improved memory and selective attention by significantly increasing the Rey–Kim memory quotient and word reading in the subjects with MMSE-K scores of 21–23 (LGNC-07, n = 11; placebo, n = 9). Electroencephalograms were recorded in 24 randomly selected subjects hourly for 3 hours in eye-open, eye-closed, and reading states after a single dose of LGNC-07 (LGNC-07, n = 12; placebo, n = 12). Brain theta waves, an indicator of cognitive alertness, were increased significantly in the temporal, frontal, parietal, and occipital areas after 3 hours in the eye-open and reading states. Therefore, this study suggests that LGNC-07 has potential as an intervention for cognitive improvement.
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Lim, Won Sub,Oh, Jungsu S.,Roh, Jong-Lyel,Kim, Jae Seung,Kim, Soo-Jong,Choi, Seung-Ho,Nam, Soon Yuhl,Kim, Sang Yoon Elsevier 2018 Oral oncology Vol.77 No.-
<P><B>Abstract</B></P> <P><B>Objectives</B></P> <P>Adenoid cystic carcinoma (AdCC) in the salivary gland shows a high rate of distant metastasis, which is related to the resulting poor prognosis. We therefore examined the role of pretreatment <SUP>18</SUP>F-FDG PET/CT for prediction of distant metastasis, recurrence/progression, and survival in AdCC.</P> <P><B>Methods</B></P> <P>This study included 52 patients who underwent pretreatment <SUP>18</SUP>F-FDG PET/CT scanning and subsequent treatments for AdCC. Maximum, mean, and peak standardized uptake value (SUV<SUB>max</SUB>, SUV<SUB>mean</SUB>, and SUV<SUB>peak</SUB>), metabolic tumor volume (MTV), and total lesion glycolysis (TLG) were measured on <SUP>18</SUP>F-FDG PET/CT. Univariate and multivariate Cox proportional hazards regression analyses were used to identify associations between the quantitative measurements of <SUP>18</SUP>F-FDG PET, and progression-free survival (PFS), distant metastasis-free survival (DMFS), and disease-specific survival (DSS).</P> <P><B>Results</B></P> <P>Distant metastases were found in 20 (39%) patients: 6 (12%) at initial diagnosis and 14 (27%) during the median follow-up of 72 months after treatment. Univariate analyses showed that all the <SUP>18</SUP>F-FDG PET parameters of SUV<SUB>max</SUB>, SUV<SUB>mean</SUB>, SUV<SUB>peak</SUB>, MTV, and TLG were significantly associated with overall PFS, DMFS, and OS (all <I>P</I> < .05). After controlling for clinicopathological variables, SUV<SUB>max</SUB> remained an independent factor predictive of PFS (<I>P</I> = .001), while MTV and TLG were independent predictors of DMFS (<I>P</I> = .009) and DSS (<I>P</I> = .017). Patients with MTV > 14.8 mL showed a 5.9-fold higher risk of distant metastasis and a 4.2-fold higher risk of disease-specific death than those with a lower MTV.</P> <P><B>Conclusions</B></P> <P>Quantitative measurements using <SUP>18</SUP>F-FDG PET/CT are useful for predicting tumor progression, distant metastasis, and survival in patients with AdCC.</P> <P><B>Highlights</B></P> <P> <UL> <LI> SUV<SUB>max</SUB>, SUV<SUB>mean</SUB>, SUV<SUB>peak</SUB>, MTV, and TLG were measured on pretreatment <SUP>18</SUP>F-FDG PET/CT of 52 adenoid cystic carcinoma patients. </LI> <LI> SUV<SUB>max</SUB> (>3.2) was an independent factor predictive of progression-free survival (<I>P</I> = .001). </LI> <LI> MTV and TLG were independent predictors of distant metastasis-free and disease-specific survival (<I>P</I> < .05) </LI> <LI> MTV > 14.8 mL or TLG > 45.5 g was associated with a >4-fold increased risk of distant metastasis and mortality. </LI> </UL> </P>
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Lim, Jun,Yeo, Hyeonuk,Kim, Seo Gyun,Park, Ok-Kyung,Yu, Jaesang,Hwang, Jun Yeon,Goh, Munju,Ku, Bon-Cheol,Lee, Heon Sang,You, Nam-Ho Elsevier 2017 Composites Part B, Engineering Vol.114 No.-
<P><B>Abstract</B></P> <P>In this paper, we describe a functionalization route for synthesizing pyridine-functionalized reduced graphene oxide (Py-rGO) and the effect in the polymer matrix. In addition, polyimide (PI) nanocomposites with different loadings of Py-rGO are fabricated by in-situ polymerization. Py-rGO can perform as a filler component, which enhances the mechanical properties of the composites as well as promote polycondensation as a catalyst. As a result, the PIs containing Py-rGO are obtained with a high degree of imidization and the nanocomposite films show improved mechanical properties and oxygen barrier properties compared to pure PI. To be specific, the tensile strength and tensile modules of the nanocomposite with 0.5 wt% loading of Py-rGO are enhanced by about 406% (527 MPa) and 928% (59 GPa) in comparison to those of pure PI, respectively. Furthermore, the oxygen barrier properties of the composites are extremely improved.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
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