1,565 research outputs found

    WSPÓŁISTNIENIE MUZYKI KLASYCZNEJ I TRADYCYJNEJ (GUGAK) W KULTURZE KOREAŃSKIEJ

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    Classical music and Korean traditional music ‘Gugak’ in Korean culture try various ways such as creating new music and culture through mutual interchange and fusion for coexistence. The purpose of this study is to investigate the present status of Classical music in Korea that has not been 200 years old during the flowering period and the Japanese colonial period, and the classification of Korean traditional music and musical instruments, and to examine the preservation and succession of traditional Gugak, new Korean traditional music and fusion Korean traditional music. Finally, it is exemplified that Gugak and Classical music can converge and coexist in various collaborations based on the institutional help of the nation. In conclusion, Classical music and Korean traditional music try to create synergy between them in Korean culture by making various efforts such as new attempts and conservation.Muzyka klasyczna oraz tradycyjna muzyka koreańska nazywana gugak tworzą nową muzykę i kulturę w drodze wymiany i połączenia. Celem niniejszego artykułu jest analiza obecnego statusu muzyki klasycznej w Korei (która w Korei zaczęła być zauważalna niecałe 200 lat temu) w okresie jej rozwoju oraz okresie okupacji japońskiej, klasyfikacja koreańskiej muzyki tradycyjnej z omówieniem instrumentów muzycznych jak i zachowanie i kultywowanie muzyki tradycyjnej, współczesnej muzyki tradycyjnej i muzyki typu fusion. Autorka podnosi, że muzyka klasyczna i tradycyjna muzyka koreańska mogą się przenikać i współistnieć w wielu projektach przy wsparciu instytucjonalnym ze strony państwa. Dzięki rozlicznym wysiłkom kultywowania i nowych wizji w tworzeniu synergii w kulturze koreańskiej, muzyka tradycyjna i klasyczna mogą tworzyć nowe pola do działania

    Factors that influence motor performance: Colour, inhibition and conscious processing

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    This thesis investigates potential psychological mechanisms that influence motor performance in sport, including colour, inhibition function, and propensity for conscious control of movement. A question was raised about whether individuals with poor inhibition function would be more likely to have a high propensity for conscious control (i.e., reinvestment) because they are less able to inhibit conscious control. However, Experiment 1 (Chapter 2) and Experiment 2 (Chapter 3) revealed a positive association between inhibition function (indexed by the Go/NoGo task) and propensity for conscious control of movement (assessed by the Movement Specific Reinvestment Scale, MSRS). Experiment 3 (Chapter 4) examined the effect of colour on inhibition function during a basketball-specific Go/NoGo task. Worse inhibition performance was evident when participants viewed an opponent in a green uniform compared to a red and a grey uniform, possibly because green conveys the meaning to ‘go’ (e.g., at traffic lights). Archival data of professional netball games was analysed to examine whether teams in green uniforms made more intercepts because green lowers an opponent’s ability to inhibit an ill-chosen pass. Findings revealed higher mean intercepts for teams wearing green uniforms than for teams wearing red and other-coloured uniforms. Experiment 4 (Chapter 5) examined whether the effect of uniform colour may be due to differences in an opponent’s perception of size. A side-by-side comparison task revealed that goalkeepers in a red and a blue uniform were perceived as larger than goalkeepers in a green uniform, possibly because red and blue colours convey the meaning of dominance and threat in a football context (e.g., the most successful teams, like Manchester United and Chelsea, wear red and blue colours). Experiment 5 (Chapter 6) examined whether viewing a red and a blue spectator background would elicit avoidance motivation during football penalty-kicks, because they conveyed the meaning of dominance and threat. Professional football players displayed avoidance motivation (i.e., choosing the easier option/ kicking towards the larger side of the goal) when viewing a red and a blue spectator background compared to other-coloured backgrounds. Based on Experiments 4 and 5, it was argued that viewing a red and a blue spectator background elicited avoidance motivation because red and blue convey the meaning of dominance and threat in football. In Experiment 6 (Chapter 7), retrospective analysis of professional football games was conducted to examine whether avoidance motivation would also be evident when facing a hostile crowd (a threatening stimulus). Consistently, penalty-kickers chose the easier option/ kicked to the larger side of the goal (i.e., avoidance motivation) more often when facing a hostile crowd rather than a supportive crowd. It was suggested that viewing a threatening stimulus (1) increases arousal levels, which exacerbates the negative emotions that are experienced by kickers during penalty-kicks in real-life or (2) viewing a threatening stimulus aids visual discrimination of available space, allowing kickers to identify and kick towards the larger side more often. The findings of this thesis revealed a positive association between inhibition function and movement specific reinvestment propensity, which suggests that ability to inhibit inappropriate motor responses may be a function of inter-personal differences in the propensity for conscious control of movements. Support was found for the effect of colour in sporting contexts. Overall, the findings suggest that the colour effect only occurs if the colour-meaning association reaches an adequate salience threshold within a specific context. In addition, it was argued that while context influences emotional valence (positive, negative emotions), colour influences arousal, which exacerbates the level of negative emotion. An attempt is made to integrate the findings from the thesis with previous evidence to begin development of a theoretical framework for the effects of colour on human performance

    Effect of a Er, Cr:YSGG laser and a Er:YAG laser treatment on oral biofilm-contaminated titanium

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    Implant surface decontamination is a challenging procedure for therapy of peri-implant disease. Objective: This study aimed to compare the effectiveness of decontamination on oral biofilm-contaminated titanium surfaces in Er:YAG laser, Er, Cr:YSGG laser, and plastic curette. Methodology: For oral biofilms formation, six participants wore an acrylic splint with eight titanium discs in the maxillary arch for 72 hours. A total of 48 contaminated discs were distributed among four groups: untreated control; decontamination with plastic curettes; Er, Cr:YSGG laser; and Er:YAG laser irradiation. Complete plaque removal was estimated using naked-eye and the time taken was recorded; the residual plaque area was measured and the morphological alteration of the specimen surface was observed by scanning electron microscopy. The total bacterial load and the viability of adherent bacteria were quantified by live or dead cell labeling with fluorescence microscopy. Results: The mean treatment time significantly decreased based on the treatment used in the following order: Er:YAG, Er, Cr:YSGG laser, and plastic curettes (234.9±25.4 sec, 156.1±12.7 sec, and 126.4±18.6 sec, P=0.000). The mean RPA in the Er, Cr:YSGG laser group (7.0±2.5%) was lower than Er:YAG and plastic curettes groups (10.3±2.4%, 12.3±3.6%, p=0.023). The viable bacteria on the titanium surface after Er, Cr:YSGG laser irradiation was significantly lower compared to the decontamination with plastic curette (P=0.05) but it was not significantly different from the Er:YAG laser irradiation. Conclusion: We found that Er:YAG laser and Er, Cr:YSGG laser irradiation were effective methods for decontaminations without surface alterations

    Iron-Catalyzed Oxidative α-Amination of Ketones with Primary and Secondary Sulfonamides

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    We report the iron-catalyzed α-amination of ketones with sulfonamides. Using an oxidative coupling approach, ketones can be directly coupled with free sulfonamides, without the need for prefunctionalization of either substrate. Primary and secondary sulfonamides are both competent coupling partners, with yields from 55% to 88% for deoxybenzoin-derived substrates

    Substitution of Heavy Complementarity Determining Region 3 (CDR-H3) Residues Can Synergistically Enhance Functional Activity of Antibody and Its Binding Affinity to HER2 Antigen

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    To generate a biobetter that has improved therapeutic activity, we constructed scFv libraries via random mutagenesis of several residues of CDR-H3 and -L3 of hu4D5. The scFv clones were isolated from the phage display libraries by stringent panning, and their anti-proliferative activity against HER2-positive cancer cells was evaluated as a primary selection criterion. Consequently, we selected AH06 as a biobetter antibody that had a 7.2-fold increase in anti-proliferative activity (IC50: 0.81 nM) against the gastric cancer cell line NCI-N87 and a 7.4-fold increase in binding affinity (K-D : 60 pM) to HER2 compared to hu4D5. The binding energy calculation and molecular modeling suggest that the substitution of residues of CDR-H3 to W98, F100c, A101 and L102 could stabilize binding of the antibody to HER2 and there could be direct hydrophobic interactions between the aromatic ring of W98 and the aliphatic group of I613 within HER2 domain IV as well as the heavy and light chain hydrophobic interactions by residues F100c, A101 and L102 of CDR-H3. Therefore, we speculate that two such interactions were exerted by the residues W98 and F100c. A101 and L102 may have a synergistic effect on the increase in the binding affinity to HER2. AH06 specifically binds to domain IV of HER2, and it decreased the phosphorylation level of HER2 and AKT. Above all, it highly increased the overall level of p27 compared to hu4D5 in the gastric cancer cell line NCI-N82, suggesting that AH06 could potentially be a more efficient therapeutic agent than hu4D5.OAIID:RECH_ACHV_DSTSH_NO:T201620640RECH_ACHV_FG:RR00200001ADJUST_YN:EMP_ID:A002901CITE_RATE:2.67DEPT_NM:화학생물공학부EMAIL:[email protected]_YN:YCONFIRM:

    A multidimensional approach to wearability assessment of an electronic wrist bracelet for the criminal justice system

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    Electronic monitoring systems have been globally adopted to track criminals to ensure public safety efficiently. In this study, we aimed to assess the wearability of an electronic bracelet using multiple evaluation methods, including the evaluation of range of motion (ROM), air gap (AG), and clothing pressure (CP) at the wearer’s wrist, as well as self-scoring of subjective comfort (SC). We recruited eight Korean male participants (N = 8) who were in their 30 s and did not have any musculoskeletal problems at data collection. We compared the test results collected on the first day with those obtained after wearing the electronic wrist bracelet for 5 consecutive days. We also examined the differences between the normal-weight and overweight groups. Overall, the data evinced a decrease in the wrist ROM, AG, and SC, but an increase in the CP after it was worn for 5 days. And, the results were more observable in the overweight group, as compared to the normal-weight group. Furthermore, this study proposed a novel and effective assessment tool that could be used to measure the wearability of devices or systems intended to be worn on the human body—not only the electronic wrist bracelet for criminal monitoring but also popular commercial electronic bracelets for sportswear or health-related monitoring system.This work was supported by Korea Institute for Advancement of Technology (KIAT) grant funded by the Korea Government (MOTIE) (P0012770, Professional Human Resources Training Project), and the National Research Foundation of Korea (NRF) grant funded by the Korean Government (MSIT) (2016R1A5A1938472

    Inhibitory control, conscious processing of movement and anxiety

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    © 2019 Elsevier Ltd It has been suggested that a high propensity for reinvestment (i.e., conscious processing of movements) can disrupt performance, but the mechanisms responsible are not well understood. The purpose of this study was to examine whether people with superior inhibition function (i.e., ability to suppress unwanted thoughts and behaviours) were better able to suppress conscious processing of their movements (i.e., reinvestment). Inhibition function was assessed using a Go/NoGo button-press task, and individual propensity for reinvestment was assessed using the Movement Specific Reinvestment Scale (MSRS) and the Decision-Specific Reinvestment Scale (DSRS). The results revealed positive associations between inhibition function and reinvestment propensity, with better inhibition function evident in people who displayed a higher propensity to reinvest (MSRS and DSRS). Hierarchical regression analyses revealed that trait anxiety moderated the relationship between inhibition and movement specific reinvestment, with higher MSRS scores associated with better inhibition function in people with low trait anxiety. This association was not significant among people with high trait anxiety. Possible explanations for these results are discussed

    Fabrication of a spherical inclusion phantom for validation of magnetic resonance-based magnetic susceptibility imaging

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    © 2019 Kim et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.Fabrication of a spherical multi-compartment MRI phantom is demonstrated that can be used to validate magnetic resonance (MR)-based susceptibility imaging reconstruction. The phantom consists of a 10 cm diameter gelatin sphere that encloses multiple smaller gelatin spheres doped with different concentrations of paramagnetic contrast agents. Compared to previous multi-compartment phantoms with cylindrical geometry, the phantom provides the following benefits: (1) no compartmental barrier materials are used that can introduce signal voids and spurious phase; (2) compartmental geometry is reproducible; (3) spherical susceptibility boundaries possess a ground-truth analytical phase solution for easy experimental validation; (4) spherical geometry of the overall phantom eliminates background phase due to air-phantom boundary in any scan orientation. The susceptibility of individual compartments can be controlled independently by doping. During fabrication, formalin crosslinking and water-proof surface coating effectively blocked water diffusion between the compartments to preserve the phantom’s integrity. The spherical shapes were realized by molding the inner gel compartments in acrylic spherical shells, 3 cm in diameter, and constructing the whole phantom inside a larger acrylic shell. From gradient echo images obtained at 3T, we verified that the phantom produced phase images in agreement with the theoretical prediction. Factors that limit the agreement include: air bubbles trapped at the gel interfaces, imperfect magnet shimming, and the susceptibility of external materials such as the phantom support hardware. The phantom images were used to validate publicly available codes for quantitative susceptibility mapping. We believe that the proposed phantom can provide a useful testbed for validation of MR phase imaging and MR-based magnetic susceptibility reconstructio
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