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Confucianism and Corruption: The Sources of Support for Democracy in Northeast Asia
José, Alemá,n,Howard Sanborn 한국학술연구원 2021 Korea Observer Vol.52 No.4
Scholars of comparative politics have long sought to understand the relationship between Confucianism and support for democratic regimes and institutions. Confucianism can manifest itself in a preference for economic growth over democratic politics among citizens. In this paper, we consider the effect of corruption perceptions on support for democracy in Asia s liberal democracies (Japan, South Korea, and Taiwan). Using latent class analysis (LCA), we find that although some in Northeast Asia value economic growth more than democratic development, this view does not necessarily threaten evaluations of democratic performance or translate into a clear preference for dictatorship. We also find that perceptions of government corruption fully color the views individuals have about how desirable democracy is as a political regime and how it performs in their country. All told, our research reconceptualizes the relationship between regime performance and cultural orientations in East Asia s Confucian democracies.
Jorge Chávez,Omar Jiménez Alemán,Martín Flores Martínez,Héctor J. Vergara‑Hernández,Luis Olmos,Pedro Garnica‑González,Didier Bouvard 대한금속·재료학회 2020 METALS AND MATERIALS International Vol.26 No.2
The design and fabrication of a bilayer Ti6Al4V–Ti6Al4V/30Ta component were performed by using the powder metallurgyprocess and solid-state sintering as the consolidation step. Phase change and sintering densifcation of the component werestudied by dilatometry. The addition of 30 vol% of Ta to the Ti6Al4V matrix had a noticeable efect over the microstructuraland mechanical properties of the alloy, which showed decrements of up to 12.2 and 21.5% in nano-hardness and elastic modulus, respectively. The decrement of these properties strongly afected the wear and corrosion performance of the component. Special attention was focused on the intermediate zone between layers denoted by a transition zone, which presented betterwear response because of the properties and microstructure caused by the gradient difusion of Ta. Ti6Al4V/30Ta alloyshowed an improved corrosion behaviour compared to Ti6Al4V alloy, decreasing 2.4 times their susceptibility to corrosionand about two orders of magnitude their corrosion rate. The bilayer component in this study is proposed as an alternative todecrease the consumption of expensive materials with improved properties.
Serum Sclerostin in Hepatitis C Virus Infected Patients
E. González-Reimers,Javier López-Prieto,Ricardo Pelazas-González,M.Remedios Alemán-Valls,María José de la Vega-Prieto,Carlos Jorge-Ripper,M. Carmen Durán-Castellón,F Santolaria-Fernández 대한골대사학회 2014 대한골대사학회지 Vol.21 No.1
Background: Sclerostin inhibits osteoblast functions, differentiations, and survival rates. As an endogenous inhibitor of the Wnt/β-catenin pathway, the sclerostin should be re-lated to decreased bone masses, although several studies indicate opposite results. Inaddition, it may be related to insulin resistances and carbohydrate metabolisms, a rela-tion shared with other markers of bone metabolisms, such as osteocalcin. Hepatitis C vi-rus (HCV) infected patients may present osteoporosis, and frequently show liver steato-sis, which is a consequence of insulin resistance. The behaviour of sclerostin in these pa-tients is yet unknown. The aim of this work is to analyse the relationships between se-rum sclerostin and osteocalcin levels and bone mineral density (BMD), liver functions,the intensity of liver steatosis and biochemical markers of bone homeostasis and insulinresistance in HCV-infected patients. Methods: Forty HCV patients with 20 years of ageand gender-matching controls were included in this study and underwent bone densi-tometry. Serum sclerostin, osteocalcin, collagen telopeptide, adiponectin, leptin, insulin,resistin, tumor necrosis factor (TNF)-α, and interleukin (IL)-6 were determined. Liver fatwas histomorphometrically assessed. Results: Sclerostin levels were slightly higher inpatients than in controls, and were directly related to BMD at different parts of the skele-ton, also to the serum telopeptide, and to the liver steatosis and TNF-α. On the contrary,osteocalcin showed a significant direct relationship with serum adiponectin, and an in-verse one with IL-6. Conclusions: Serum sclerostin levels were within the normal rangein HCV patients, and correlated directly with BMD and serum telopeptide. In addition,the relationships of sclerostin and osteocalcin with variables associated with insulin re-sistance suggested the role of bones for intermediary metabolisms.
Rodolfo Valdés,Andrés Tamayo,Marcos González,Sigifredo Padilla,Déborah Geada,William Ferro,Lorely Milá,Leonardo Gómez,Rosario Alemán,Alberto Leyva,Cristina García,Otto Mendoza,Tatiana Alvarez,Lamay Do 한국생물공학회 2012 Biotechnology and Bioprocess Engineering Vol.17 No.1
Monoclonal antibody (mAb) production methods (ascites, in vitro technologies, transgenic animals, and dicot or monocot transgenic plants; moss, algae) have been improved since they were first developed in 1975. In this study, we illustrate a summary of a study case in which mice, a hollow fiber system, and tobacco transgenic plants were assessed for the production of mAb for vaccine manufacturing and vaccine production. Monoclonal antibody (mAb) production methods (ascites, in vitro technologies, transgenic animals, and dicot or monocot transgenic plants; moss, algae) have been improved since they were first developed in 1975. In this study, we illustrate a summary of a study case in which mice, a hollow fiber system, and tobacco transgenic plants were assessed for the production of mAb for vaccine manufacturing and vaccine production.
Alem Araya Meresa,이태원,Solin Lee,김선주,박광용 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.113 No.-
Three novel tetraaryldiamines are synthesized and applied as an interlayer between zinc oxide (ZnO) andphotoactive layers in PTB7-Th:PC71BM solar cells. The arylamines have an optical bandgap of 3.0–3.4 eVand do not interfere with the light-harvesting window of our polymer:fullerene combination. Theyenhance the power conversion efficiency from 7.48% in the control device to 8.95%, 8.18%, and 7.84%in PN-, PA-, and PAP-based devices, respectively. The dependence of photovoltaic parameters on thedeposition conditions of the interlayer reveals that the current density and fill factor are the main parametersthat increase when tetraaryldiamines are used as an interlayer. The external quantum efficiencyincreases from 73.1% in the bare ZnO device to 77.7–82.0% in the interlayer-incorporated devices. Thepower loss owing to the series and shunt resistances is reduced by a suitable alignment of the electronicenergy levels with the interlayer and enhanced charge transfer through the components. Interlayerincorporateddevices also show a superior environmental stability compared to devices using bareZnO. The results of this study should help advance the engineering strategies for organic solar cells withenhanced performances.
STABLE APPROXIMATION OF THE HEAT FLUX IN AN INVERSE HEAT CONDUCTION PROBLEM
Alem, Leila,Chorfi, Lahcene Korean Mathematical Society 2018 대한수학회논문집 Vol.33 No.3
We consider an ill-posed problem for the heat equation $u_{xx}=u_t$ in the quarter plane {x > 0, t > 0}. We propose a new method to compute the heat flux $h(t)=u_x(1,t)$ from the boundary temperature g(t) = u(1, t). The operator $g{\mapsto}h=Hg$ is unbounded in $L^2({\mathbb{R}})$, so we approximate h(t) by $h_{\delta}(t)=u_x(1+{\delta},\;t)$, ${\delta}{\rightarrow}0$. When noise is present, the data is $g_{\epsilon}$ leading to a corresponding heat $h_{{\delta},{\epsilon}}$. We obtain an estimate of the error ${\parallel}h-h_{{\delta},{\epsilon}}{\parallel}$, as well as the error when $h_{{\delta},{\epsilon}}$ is approximated by the trapezoidal rule. With an a priori choice rule ${\delta}={\delta}({\epsilon})$ and ${\tau}={\tau}({\epsilon})$, the step size of the trapezoidal rule, the main theorem gives the error of the heat flux as a function of noise level ${\epsilon}$. Numerical examples show that the proposed method is effective and stable.
ON THE BIHARMONICITY OF VECTOR FIELDS ON PSEUDO-RIEMANNIAN MANIFOLDS
( Amina Alem ),( Bouazza Kacimi ),( Mustafa Özkan ) 호남수학회 2023 호남수학학술지 Vol.45 No.2
In this article, we deal with the biharmonicity of a vector field X viewed as a map from a pseudo-Riemannian manifold (M, g) into its tangent bundle TM endowed with the Sasaki metric gS. Precisely, we characterize those vector fields which are biharmonic maps, and find the relationship between them and biharmonic vector fields. Afterwards, we study the biharmonicity of left-invariant vector fields on the three dimensional Heisenberg group endowed with a left-invariant Lorentzian metric. Finally, we give examples of vector fields which are proper biharmonic maps on the Gödel universe.