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VARIABLE STARS IN LARGE MAGELLANIC CLOUD GLOBULAR CLUSTERS. III. RETICULUM
Kuehn, Charles A.,Dame, Kyra,Smith, Horace A.,Catelan, Má,rcio,Jeon, Young-Beom,Nemec, James M.,Walker, Alistair R.,Kunder, Andrea,Pritzl, Barton J.,De Lee, Nathan,Borissova, Jura American Institute of Physics 2013 The Astronomical journal Vol.145 No.6
<P>This is the third in a series of papers studying the variable stars in old globular clusters in the Large Magellanic Cloud. The primary goal of this series is to look at how the characteristics and behavior of RR Lyrae stars in Oosterhoff-intermediate systems compare to those of their counterparts in Oosterhoff-I/II systems. In this paper we present the results of our new time-series BVI photometric study of the globular cluster Reticulum. We found a total of 32 variables stars (22 RRab, 4 RRc, and 6 RRd stars) in our field of view. We present photometric parameters and light curves for these stars. We also present physical properties, derived from Fourier analysis of light curves, for some of the RR Lyrae stars. We discuss the Oosterhoff classification of Reticulum and use our results to re-derive the distance modulus and age of the cluster.</P>
NEUROMARKETING INSIGHTS INTO CONSUMER PERSONALITY TYPES AND THEIR CHOICES
Katharina Kuehn 글로벌지식마케팅경영학회 2014 Global Marketing Conference Vol.2014 No.8
Consumer decision making and behaviour happen largely under the radar of the conscious mind. In order to market brands and products effectively, the limbic system in the brain holds many clues as to how to segment consumers and increase impact with key target groups.
NEUROMARKETING INSIGHTS INTO CONSUMER PERSONALITY TYPES AND THEIR CHOICES
Katharina Kuehn 글로벌지식마케팅경영학회 2014 Global Marketing Conference Vol.2014 No.7
Consumer decision making and behaviour happen largely under the radar of the conscious mind. In order to market brands and products effectively, the limbic system in the brain holds many clues as to how to segment consumers and increase impact with key target groups.
Explaining Civil-Military Relations in New Democracies: Structure, Agency and Theory Development
David Kuehn,Philip Lorenz 서울대학교행정대학원 2011 Asian Journal of Political Science Vol.19 No.3
This article discusses the structure-agency problem in explaining civilian control of themilitary in new democracies. The authors first provide a systematic analysis of the corecontents of the structure-agency problem and its implications for theory-building in civilmilitaryresearch: the agential entities whose interactions are constitutive of civilmilitaryrelations, the relevant environmental factors, and the theoretical argumentwhich links agents’ behaviour with the environment. Based on these meta-theoreticaldeliberations, the authors analyze four recent attempts to explicitly connect structure andagency in explaining civil-military relations in new democracies. The analysis shows thatwhile being important contributions to theory development in the field, none of thesetheories have consistently dealt with the agency-structure problem in explaining civilmilitaryrelations in new democracies.
Downregulation of Wnt-Mediated ROS Generation Is Causally Implicated in Leprechaunism
Park, Ji-Won,Kuehn, Hye-Sun,Kim, So-Youn,Chung, Kyung-Min,Choi, Hyun,Kim, Mi-Ra,Kim, Jae-Sang,Lee, Soo-Young,Bae, Duk-Soo,Jin, Dong-Kyu,Bae, Yun-Soo Korean Society for Molecular and Cellular Biology 2010 Molecules and cells Vol.29 No.1
Although mutations in the insulin receptor have been causally implicated with leprechaunsim, the full pathophysiology of the syndrome cannot be accounted for by malfunction of this gene alone. We sought to characterize a connection between Wnt-mediated cell signaling and the production of reactive oxygen species (ROS) which revealed a novel mechanistic basis for understanding the pathogenesis of leprechaunism. To identify candidate genes involved in this process, a PCR-based subtractive hybridization was performed. Candidate genes were examined for interaction with the Wnt signaling pathway and ROS generation. We found that Dickkopf 1 (Dkk1), a Wnt inhibitor, is overexpressed in skin fibroblast cells derived from three leprechaunism patients and that the cells showed an impaired response to Wnt2 in terms of ${\beta}$-catenin-Tcf activation. Knockdown of Dkk1 in the patient cell lines rescued Wnt2-mediated Tcf activation. Concerted action of Wnt2 and knockdown of Dkk1 resulted in enhanced Nox4 expression and PDGF-induced ROS generation compared to parental patient cells. Furthermore, we found that NFATc2 was activated in response to Wnt2 stimulation and directly activates Nox4 expression. These data show a crosstalk between Wnt and ROS pathways which in turn provides new mechanistic insights at the molecular level into the pathogenesis of leprechaunism.
Patterns of Civilian Control of the Military in East Asia's New Democracies
Aurel Croissant,David Kuehn 동아시아연구원 2009 Journal of East Asian Studies Vol.9 No.2
Successful institutionalization of civilian control of the military is a necessary condition for the consolidation of democracy. This is particularly relevant for East Asia, where the military used to be a key player in the previous authoritarian regimes. This article analyzes the changes, advances, and setbacks in achieving civilian control in five countries that have made the transition from authoritarian to democratic rule: Indonesia, the Philippines, South Korea, Taiwan, and Thailand. The empirical analysis is built on a conception of civilian control that distinguishes three areas of political decisionmaking: political recruitment and overall public policymaking, national defense, and internal security. The study shows that only in Taiwan and South Korea have civilians succeeded in curtailing military influence in politics. In contrast, in Indonesia, the Philippines, and Thailand, the military has shown itself more or less resilient in guarding its prerogatives in the postauthoritarian era. This seriously impedes the democratically elected authorities' effective power to govern in these countries and has led to democratic deterioration in Thailand and the Philippines. The article highlights three arguments to account for the profound difference between the cases: historical legacies of authoritarian rule and the path of democratic transition, the internal security role of the military, and the relationship between development and democratic consolidation.
Downregulation of Wnt-Mediated ROS Generation Is Causally Implicated in Leprechaunism
Ji Won Park,Hye Sun Kuehn,So Youn Kim,Kyung Min Chung,Hyun Choi,Mira Kim,김재상,이수영,Duk Soo Bae,Dong-Kyu Jin,배윤수 한국분자세포생물학회 2010 Molecules and cells Vol.29 No.1
Although mutations in the insulin receptor have been causally implicated with leprechaunsim, the full pathophysiology of the syndrome cannot be accounted for by malfunction of this gene alone. We sought to characterize a connection between Wnt-mediated cell signaling and the production of reactive oxygen species (ROS) which revealed a novel mechanistic basis for understanding the pathogenesis of leprechaunism. To identify candidate genes involved in this process, a PCR-based subtractive hybridization was performed. Candidate genes were examined for interaction with the Wnt signaling pathway and ROS generation. We found that Dickkopf 1 (Dkk1), a Wnt inhibitor, is overexpressed in skin fibroblast cells derived from three leprechaunism patients and that the cells showed an impaired response to Wnt2 in terms of β-catenin-Tcf activation. Knockdown of Dkk1 in the patient cell lines rescued Wnt2-mediated Tcf activation. Concerted action of Wnt2 and knockdown of Dkk1 resulted in enhanced Nox4 expression and PDGF-induced ROS generation compared to parental patient cells. Furthermore, we found that NFATc2 was activated in response to Wnt2stimulation and directly activates Nox4 expression. These data show a crosstalk between Wnt and ROS pathways which in turn provides new mechanistic insights at the molecular level into the pathogenesis of leprechaunism.