496 research outputs found

    Erosion of Public Confidence in the Korean National Assembly

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    Using recent survey data, this paper aims to empirically investigate the state and source of Korean citizens' trust and confidence in the National Assembly. Roughly speaking, the National Assembly is trusted only by one out of ten citizens. Since the country's democratization, citizens' trust and confidence has been eroding. Presently, the National Assembly is the least trusted among the key public or private institutions. A cross-national comparison of liberal democracies in the world shows that only a few national legislatures are less trusted by their citizens than the Korean National Assembly. Furthermore, this study confirms the empirical validity of performance-based explanation about what factors generate citizens' trust and confidence in the National Assembly. At the aggregate level, an erosion of citizens' trustful attitude toward the legislature is matched by their decreased positive evaluation of the overall job performance by the legislature. At the individual level, a citizen's legislative trust and confidence depends mainly on his or her evaluation of the performance of the legislature itself, the executive interacting with it, or the democratic regime as a whole. Most Koreans pass an unfavorable judgment on the performance of the legislature, not because they think it is a simply idle institution but because politicians are seen to pursue partisan interests too frantically within the institution. Given its drained reservoir of citizens' favorable attitudes toward it, the present National Assembly, even with its heightened constitutional status and emerging policy activism, may not be likely to serve as a key agent for facilitating democratic consolidation on Korean soil

    Magnon bound states vs. anyonic Majorana excitations in the Kitaev honeycomb magnet α\alpha-RuCl3_3

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    The pure Kitaev honeycomb model harbors a quantum spin liquid in zero magnetic fields, while applying finite magnetic fields induces a topological spin liquid with non-Abelian anyonic excitations. This latter phase has been much sought after in Kitaev candidate materials, such as α\alpha-RuCl3_3. Currently, two competing scenarios exist for the intermediate field phase of this compound (B=7−10B=7-10 T), based on experimental as well as theoretical results: (i) conventional multiparticle magnetic excitations of integer quantum number vs. (ii) Majorana fermionic excitations of possibly non-Abelian nature with a fractional quantum number. To discriminate between these scenarios a detailed investigation of excitations over a wide field-temperature phase diagram is essential. Here we present Raman spectroscopic data revealing low-energy quasiparticles emerging out of a continuum of fractionalized excitations at intermediate fields, which are contrasted by conventional spin-wave excitations. The temperature evolution of these quasiparticles suggests the formation of bound states out of fractionalized excitations

    Intrapulmonary Teratoma Presenting with Trichoptysis

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    The Changes in Corneal Astigmatism after Botulinum Toxin-A Injection in Patients with Blepharospasm

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    To determine if the involuntary contractions of eyelids may have any effects on the development of corneal astigmatism, we performed this prospective study which includes 19 patients with either essential blepharospasm or hemifacial spasm. In hemifacial spasm, the degree of corneal astigmatism was evaluated between two eyes. Then the topographic changes were checked using vector analysis technique before and after passively opening the eyelids. They were also measured before and at 1 and 6 months after the injection of Botulinum toxin. Resultantly, 20 eyes had the with-the-rule (group1) and 9 eyes against-the-rule (group2) astigmatism. In hemifacial spasm, significantly more astigmatism was found at spastic eyes. The corneal topographic changes after passively opening the eyelids showed 10 eyes with the astigmatic shift to the with-the-rule, while the remaining 19 to the against-the-rule. At 1 month after injection of Botulinum toxin, group 1 showed reduced average corneal astigmatism, whereas group 2 showed increased astigmatism. The astigmatic change vector showed significantly more against-the-rule. In the contrary, 6 months after treatment, corneal astigmatism again increased in group 1 and decreased in group 2. So they took on the appearance of pretreatment astigmatic status eventually. Conclusively eyelids may play an important role in corneal curvature

    A Comparative Study of the Second-Order Hydrophobic Moments for Globular Proteins: The Consensus Scale of Hydrophobicity and the CHARMM Partial Atomic Charges

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    In this paper, the second-order hydrophobic moment for fifteen globular proteins in 150 nonhomologous protein chains was performed in a comparative study involving two sets of hydrophobicity: one selected from the consensus scale and the other derived from the CHARMM partial atomic charges. These proteins were divided into three groups, based on their number of residues (N) and the asphericity (ÎŽ). Proteins in Group I were spherical and those in Groups II and III were prolate. The size of the proteins is represented by the mean radius of gyration (Rg ), which follows the Flory scaling law, Rg ∝ NÎœ. The mean value of v was 0.35, which is similar to a polymer chain in a poor solvent. The spatial distributions of the second-order moment for each of the proteins, obtained from the two sets of hydrophobicity, were compared using the Pearson correlation coefficient; the results reveal that there is a strong correlation between the two data sets for each protein structure when the CHARMM partial atomic charges, |qi| ≄ 0.3, assigned for polar atoms, are used. The locations at which these distributions vanish and approach a negative value are at approximately 50% of the percentage of solvent accessibility, indicating that there is a transition point from hydrophobic interior to hydrophilic exterior in the proteins. This may suggest that there is a position for the proteins to determine the residues at exposed sites beyond this range

    Snake fang-inspired stamping patch for transdermal delivery of liquid formulations

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    A flexible microneedle patch that can transdermally deliver liquid-phase therapeutics would enable direct use of existing, approved drugs and vaccines, which are mostly in liquid form, without the need for additional drug solidification, efficacy verification, and subsequent approval. Specialized dissolving or coated microneedle patches that deliver reformulated, solidified therapeutics have made considerable advances; however, microneedles that can deliver liquid drugs and vaccines still remain elusive because of technical limitations. Here, we present a snake fang-inspired microneedle patch that can administer existing liquid formulations to patients in an ultrafast manner (< 15 s). Rear-fanged snakes have an intriguing molar with a groove on the surface, which enables rapid and efficient infusion of venom or saliva into prey. Liquid delivery is based on surface tension and capillary action. The microneedle patch uses multiple open groove architectures that emulate the grooved fangs of rear-fanged snakes: Similar to snake fangs, the microneedles can rapidly and efficiently deliver diverse liquid-phase drugs and vaccines in seconds under capillary action with only gentle thumb pressure, without requiring a complex pumping system. Hydrodynamic simulations show that the snake fang-inspired open groove architectures enable rapid capillary force-driven delivery of liquid formulations with varied surface tensions and viscosities. We demonstrate that administration of ovalbumin and influenza virus with the snake fang-inspired microneedle patch induces robust antibody production and protective immune response in guinea pigs and mice
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