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      • 다수제적 혼합선거제도 하에서의 투표행태에 대한 다차원 분석

        ( Chia Hung Tsai ),( Lu Huei Chen ),( Chao Chi Lin ),( Su Feng Cheng ) 한국선거학회 2011 선거연구 Vol.1 No.2

        혼합선거제도는 영국의 전통적 소선거구제와 비례제 양자 모두의 좋은 점을 제공한다고 언급된다. 학자들은 후보자와 정당들이 이러한 선거 규칙에 어떻게 반응하는지 고찰해 왔으며, 이 제도 하에서는 상이한 유인 요인이 존재한다고 주장해 왔다. 두 개의 서로 다른 층 간의 상호작용 또한 연구의 대상이 되어 왔다. 본 논문은 소선거구제에서의 투표 행태가 정당의 명성에 의해 영향 받는 정도를 평가해 보고자 하는데, 이는 소선거구 선거 결과와 비례대표 선거 결과 간의 차이에 의해서 측정된다. 대부분의 유권자가 비례대표 표를 던질 때 자신들의 선호를 따르며, 소선거구 표를 던질 때는 현직자를 고려할 것이라고 우리는 가정한다. 한국, 대만, 그리고 일본에서의 투표 행태를 비교함으로써, 사회적 배경, 정치적 태도, 쟁점에 대한 의견 등이 투표 행태에 미치는 상대적 영향력을 이들 세 국가에 걸쳐서 평가할 수 있다. 분석에 사용되는 자료는 선거제도 비교연구(CSES) 2차조사 (2001-2006), 21세기 전국적 장기 설문조사 자료 (JES 3차), 대만의 선거 및 민주화 연구 자료 (TEDS 2008L)이며, 이를 통해 각기 한국의 2004년 총선, 대만의 2008년 의회선거, 그리고 일본의 총선을 고찰한다. It is said that mixed-member systems offer the best of both the traditional British single-member district system (SMD) and proportional representation systems (PR). Scholars have examined how candidates and parties respond to the electoral rule, arguing that there are different incentives for them. The interaction between the two tiers is also investigated. This paper attempts to assess the extent to which voting behavior in the SMD districts would be influenced by party reputation measured by the difference between the SMD and PR voting results. We assume that most voters follow their preferences when they cast their PR votes, but that they consider the incumbents when they cast their SMD ballots. Comparing voting behavior in Korea, Taiwan, and Japan, we are able to assess the relative effect of social backgrounds, political predispositions, and issue opinions on voting behavior across three countries. We use CSES Module 2 (2001-2006) data, the Nation-wide Longitudinal Survey Study on Voting Behavior in the 21st Century (JES III) data, and Taiwan`s Election and Democratization Study (TEDS 2008L) data to examine voting behavior in the 2004 National Assembly election of Korea, the 2008 legislative election of Taiwan, and the 2005 general election of Japan respectively.

      • On the direct insulator-quantum Hall transition in two-dimensional electron systems in the vicinity of nanoscaled scatterers

        Liang, Chi-Te,Lin, Li-Hung,Kuang Yoa, Chen,Lo, Shun-Tsung,Wang, Yi-Ting,Lou, Dong-Sheng,Kim, Gil-Ho,Yuan-Huei, Chang,Ochiai, Yuichi,Aoki, Nobuyuki,Chen, Jeng-Chung,Lin, Yiping,Chun-Feng, Huang,Lin, Sh Springer 2011 Nanoscale research letters Vol.6 No.1

        <P>A direct insulator-quantum Hall (I-QH) transition corresponds to a crossover/transition from the insulating regime to a high Landau level filling factor ν > 2 QH state. Such a transition has been attracting a great deal of both experimental and theoretical interests. In this study, we present three different two-dimensional electron systems (2DESs) which are in the vicinity of nanoscaled scatterers. All these three devices exhibit a direct I-QH transition, and the transport properties under different nanaoscaled scatterers are discussed.</P>

      • KCI등재

        The Effectiveness of Dignity Therapy as Applied to End-of-Life Patients with Cancer in Taiwan: A Quasi-Experimental Study

        Yu-Chi Li,Yin-Hsun Feng,Hui-Ying Chiang,Shu-Ching Ma,Hsiu-Hung Wang 한국간호과학회 2020 Asian Nursing Research Vol.14 No.4

        Purpose: The aim of the study was to determine the effectiveness of dignity therapy for end-of-lifepatients with cancer. Methods: This study used a quasi-experimental study design with a nonrandomized controlled trial. Dignity therapy was used as an intervention in the experimental group, and general visit was used in thecontrol group. Thirty end-of-life patients with cancer were recruited, with 16 in the experimental groupand 14 in the control group. Outcome variables were the participants' dignity, demoralization, anddepression. Measurements were taken at the following time points: pre-test (before intervention), posttest1 (the 7th day), and post-test 2 (the 14th day). The effectiveness of the intervention in the twogroups was analyzed using the generalized estimating equation, with the p value set to be less than .05. Results: After dignity therapy, the end-of-life patients with cancer reflected increased dignity significantly[b ¼ 37.08, standard error (SE) ¼ 7.43, Wald c2 ¼ 24.94, p < .001], whereas demoralization(b¼ 39.55, SE ¼ 6.42,Wald c2 ¼ 37.95, p < .001) and depression (b¼ 12.01, SE ¼ 2.17,Wald c2 ¼ 30.71,p < .001) were both reduced significantly. Conclusion: Clinical nurses could be adopting dignity therapy to relieve psychological distress andimprove spiritual need in end-of-life patients with cancer. Future studies might be expanded tolooking at patients vis- a-vis end-of-life patients without cancer to improve their psychologicaldistress. These results provide reference data for the care of end-of-life patients with cancer fornursing professionals.

      • KCI등재

        Dignity and Related Factors in Patients with Cancer: A Cross-Sectional Study

        Li Yu-Chi,Feng Yin-Hsun,Ma Shu-Ching,Wang Hsiu-Hung 한국간호과학회 2023 Asian Nursing Research Vol.17 No.1

        Purpose: Dignity is a basic human right that is related to psychological distress factors in patients with cancer such as depression and demoralization. Hence, the dignity issue is of great importance to healthcare professionals. The present study aimed to advise healthcare professionals regarding the related distress factors of dignity in patients with cancer by investigating its relationship with patients’ demographics, disease characteristics, and psychological distress. Methods: This was a cross-sectional study design. A convenience sample of 267 patients with cancer from a medical center was recruited into this study. Each patient completed demographics and disease characteristics questionnaires, the Patient Dignity Inventory Mandarin Version, the Demoralization Scale Mandarin Version (DS-MV), and the Patient Health Questionnaire-9 (PHQ-9). Data were analyzed with SPSS 22.0 software. Results: Dignity was significantly correlated with age, demoralization, and depression. Cancer patients aged 65 or above were more likely to have a lower sense of dignity. In the present study, the sensitivity and specificity of the Patient Dignity Inventory Mandarin Version for demoralization (DS-MVꠑ30) were 84.8% and 79.1% and for depression (PHQ-9ꠑ10) were 73.8% and 70.9% in patients with cancer with an aggregate score of 35 or above. Conclusions: Dignity is significantly correlated with personal demographic characteristics and psychoꠓlogical distress in patients with cancer. The results provide reference data for healthcare professionals to understand and enable dignity in patients with cancer and aid in the development of methods that promote their dignity

      • KCI등재

        Albanin A, Derived from the Root Bark of Morus alba L., Depresses Glutamate Release in the Rat Cerebrocortical Nerve Terminals via Ca2+/Calmodulin/Adenylate Cyclase 1 Suppression

        Yi Chang,Chi-Feng Hung,Horng Huey Ko,Su-Jane Wang 한국식품영양과학회 2021 Journal of medicinal food Vol.24 No.3

        Decreasing synaptic release of glutamate may counteract glutamate excitotoxicity in many neurological diseases. In this study, we investigated the effect of albanin A, a constituent in the root bark of Morus alba L., on the release of glutamate in rat cerebral cortex nerve endings (synaptosomes). We found that albanin A at 5–30μM suppressed 4-aminopyridine (4-AP)-induced release of glutamate. This phenomenon was abolished by extracellular calcium removal or by vesicular transporter inhibition, and was associated with a decrease in intrasynaptosomal Ca2+ levels. However, albanin A had no effect on the synaptosomal membrane potential. The inhibition of N- and P/Q-type Ca2+ channels, calmodulin, adenylate cyclase (AC), and protein kinase A, abolished the effect of albanin A on the glutamate release evoked by 4-AP. Moreover, the albanin A-mediated inhibition of glutamate release was prevented by the Ca2+/calmodulin-stimulated AC1 inhibitor. Western blot showed that AC1, but not AC8, was presented in the synaptosomes, and albanin A reduced 4-AP-induced increases in synaptosomal cyclic adenosine monophosphate content. In addition, albanin A pretreatment substantially attenuated neuronal damage in a rat model of kainic acid-induced glutamate excitotoxicity. Our data reveal that albanin A suppresses glutamate release by decreasing Ca2+/calmodulin/AC1 activation in synaptosomes and exerts neuroprotective effect in vivo.

      • SCIESCOPUSKCI등재

        Eupafolin Suppresses P/Q-Type Ca<sup>2+</sup> Channels to Inhibit Ca<sup>2+</sup>/ Calmodulin-Dependent Protein Kinase II and Glutamate Release at Rat Cerebrocortical Nerve Terminals

        ( Anna Chang ),( Chi-Feng Hung ),( Pei-Wen Hsieh ),( Horng-Huey Ko ),( Su-Jane Wang ) 한국응용약물학회 2021 Biomolecules & Therapeutics(구 응용약물학회지) Vol.29 No.6

        Eupafolin, a constituent of the aerial parts of Phyla nodiflora, has neuroprotective property. Because reducing the synaptic release of glutamate is crucial to achieving pharmacotherapeutic effects of neuroprotectants, we investigated the effect of eupafolin on glutamate release in rat cerebrocortical synaptosomes and explored the possible mechanism. We discovered that eupafolin depressed 4-aminopyridine (4-AP)-induced glutamate release, and this phenomenon was prevented in the absence of extracellular calcium. Eupafolin inhibition of glutamate release from synaptic vesicles was confirmed through measurement of the release of the fluorescent dye FM 1-43. Eupafolin decreased 4-AP-induced [Ca<sup>2+</sup>]<sub>i</sub> elevation and had no effect on synaptosomal membrane potential. The inhibition of P/Q-type Ca<sup>2+</sup> channels reduced the decrease in glutamate release that was caused by eupafolin, and docking data revealed that eupafolin interacted with P/Q-type Ca<sup>2+</sup> channels. Additionally, the inhibition of calcium/calmodulindependent protein kinase II (CaMKII) prevented the effect of eupafolin on evoked glutamate release. Eupafolin also reduced the 4-AP-induced activation of CaMK II and the subsequent phosphorylation of synapsin I, which is the main presynaptic target of CaMKII. Therefore, eupafolin suppresses P/Q-type Ca<sup>2+</sup> channels and thereby inhibits CaMKII/synapsin I pathways and the release of glutamate from rat cerebrocortical synaptosomes.

      • KCI등재

        Allicin Inhibits Glutamate Release from Rat Cerebral Cortex Nerve Terminals Through Suppressing Ca2+ Influx and Protein Kinase C Activity

        Cheng Wei Lu,Chi-Feng Hung,Tzu Yu Lin,Ting Yang Hsieh,Su-Jane Wang 한국식품영양과학회 2019 Journal of medicinal food Vol.22 No.7

        Evidence indicates that indirect inhibitory regulation of glutamatergic transmission, via reducing glutamate release, may induce neuroprotection. The present work was designed to examine whether allicin, a major component of garlic with neuroprotective effects, affected the release of glutamate evoked by 4-aminopyridine in rat cerebrocortical nerve terminals (synaptosomes). Allicin caused a potent inhibition on the release of glutamate evoked by 4-aminopyridine, and this inhibitory effect was abolished in the presence of Ca2+-free medium and vesicular transporter inhibitor. Allicin decreased the 4-aminopyridine-evoked elevation of intrasynaptosomal Ca2+ levels, but had no effect on the synaptosomal plasma membrane potential. The allicin-mediated inhibition of glutamate release was prevented by the N- and P/Q-type channel blocker and the protein kinase C (PKC) inhibitor, but was not affected by the intracellular Ca2+-release inhibitors, mitogen-activated protein kinase inhibitor, and protein kinase A inhibitor. Western blotting data also showed that allicin significantly reduced the phosphorylation of PKC. Together, these data indicate that in rat cerebrocortical nerve terminals, allicin depresses glutamate release and appears to decrease N- and P/Q-type Ca2+ channel and PKC activity.

      • KCI등재

        Experimental Studies of Low-Field Landau Quantization in Two-Dimensional Electron Systems in GaAs/AlGaAs Heterostructures

        Jing-Han Chen,Chi-Te Liang,Chun-Feng Huang,Da-Ren Hang,David A. Ritchie,J. C. Hsiao,Jyun-Ying Lin,Michelle Y. Simmons,Ming-Gu Lin,S. H. Lo,Tsai-Yu Huang 한국물리학회 2007 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.50 No.3

        By applying a magnetic field perpendicular to GaAs/AlGaAs two-dimensional electron systems (2DESs), we study the low-field Landau quantization when the thermal damping is reduced with decreasing temperature. Magneto-oscillations following the Shubnikov-de Haas (SdH) formula are observed even when their amplitudes are so large that the deviation to such a formula is expected. Our experimental results show the importance of the positive magneto-resistance to the extension of the SdH formula under the damping induced by the disorder.

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