• Korean Journal of Cognitive Science
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• v.25 no.2
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• pp.73-90
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• 2014

It has been suggested that primates' trichromatic color vision is an adaption for folivory and frugivory. Ripened fruit frequently is red against a green background. Given this, the question for our research was whether the ecological relationship between red and green plays any role in figure-ground organization that is an essential step in forming our perception of objects? In this study, it was tested which color looked most strong as a figure, using a red circle on a green background and a green circle on red background. The results of Experiment 1 showed that most participants saw the red circle for the figure more than the green circle. However, this effect was significant only in females, but not in males. Accordingly, this result suggests that the visual development of figure-ground organization based on red-green color combination may differ between males and females. In Experiment 2, it was surveyed that the results of Experiment 1 was simply not by the sex difference of color preference. The gender difference of the figure-ground organization on red-green stimuli are discussed in terms of some recent hypotheses such as gatherer-hunter hypothesis.

• Analytical Science and Technology
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• v.11 no.1
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• pp.8-12
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• 1998

The 2,2'-Biimidazole was synthesized by the reaction between glycol and ammonium solution. The correct solid structure of 2,2'-biimidazole in this method reported either trans ($C_{2h}$) or cis ($C_{2v}$) form. In this study, the correct structure of 2,2'-biimidazole was analysed by both FTIR and Raman spectroscopy using mutual exclusion properties of them. Also, it was analysed by $^1H$ and $^{13}C$ NMR and computer molecular modeling. The structure of 2,2'-biimidazole found to be trans ($C_{2h}$) than cis ($C_{2v}$) by comparison between FTIR and Raman Spectra. This results agree with computer molecular modeling and x-ray crystallography. This study provide good evidence for identifying structural orientation of the 2,2'-biimidazole containing pyridyl nitrogen.

• Korean Journal of Food Science and Technology
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• v.53 no.5
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• pp.561-569
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• 2021

Diabetic nephropathy is a major and representative complication of type 2 diabetes. Hyperglycemia increases the incidence of diabetic nephropathy, and induces kidney inflammation, thereby causing renal fibrosis, which is an important factor in the pathogenesis of diabetic nephropathy. This study investigated the effects of blackcurrant extract (BLC), which has been implicated in diabetic nephropathy in db/db mice, on glomerular fibrosis and renal dysfunction. The results showed that BLC consumption in type 2 diabetic db/db mice ameliorated diabetes-related metabolic disorders, such as insulin resistance and renal dysfunction, and significantly attenuated renal inflammation and renal fibrosis in diabetic nephropathy. In conclusion, these findings suggest that BLC consumption may help prevent renal fibrosis, inflammation, and consequent diabetic nephropathy.

• International Area Studies Review
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• v.17 no.4
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• pp.23-42
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• 2013

This paper examines the effects of corporate governance on internationalization in Korean firms. Using the data from 454 Korean manufacturing firms listed in the Korean Stock ExchanFge (KSE) from 1999-2006, we analyzed the role of corporate governance on internationalization in Korean firms, including Chaebols (Korean business groups) and family firms. In addition, we investigated the moderating effect of concentration of ownership on internationalization. The results of the analysis showed a positive association between corporate governance in Chaebols and family firms and internationalization. Interestingly, the influence of ownership concentration overpowered the ambivalent behaviors of Chaebols, leading to less internationalization. We conclude that corporate governance in Chaebols and family firms is important to internationalization strategy.

• Analytical Science and Technology
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• v.35 no.3
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• pp.124-128
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• 2022

Blood-sensitive reagents may exhibit false positives or negatives under the influence of substances other than blood. Since these reactions lead to the misinterpretation of blood evidence, it is essential to investigate the possibility of false-positive and -negative reactions of blood-sensitive reagents. Acidic hydrogen peroxide (AHP) is a recently discovered blood-sensitive reagent, and it is not yet known whether it causes false-positive or -negative reactions. To confirm this, 20 µL of blood was placed on metal surfaces, plastic surfaces, paper surfaces, paint surfaces, foods, vegetable oils, detergents, and petroleum hydrocarbons, and then AHP was applied. The blood was observed through an orange filter under a 505-nm light source, and no false-positive or false-negative reactions were observed with any of the substances/materials. However, it was confirmed that polyethylene terephthalate surfaces, polyvinylchloride surfaces, some paint surfaces, and foods exhibit their own photoluminescence under the conditions of blood observation, which interferes with blood observation.

• Korean Journal of Ichthyology
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• v.36 no.1
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• pp.40-47
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• 2024

The anatomy and histology of the olfactory organ of Monopterus albus was investigated using stereo microscopy, light microscopy, and scanning electron microscopy. The external structure of the olfactory organ exhibited closed anterior and posterior nostrils parallel to the skin surface. The interior structure consisted of a pipe-like chamber, and lower and upper accessory nasal sacs. The olfactory chamber was composed of the sensory and non-sensory epithelium, and an unidentified organ. The sensory epithelium of the pseudostratified epithelial layer was composed of olfactory receptor neurons, supporting cells, basal cells, and lymphatic cells; and the non-sensory epithelium of the stratified squamous layer contained stratified epithelial cells and mucous cells with acidic mucopolysaccharides. The presence of intraepithelial blood capillaries and abundant dermal vascularization in the sensory epithelium of the olfactory chamber may provide strong histological evidence that respiration occurs through the olfactory epithelium.

• Korean Journal of Heritage: History & Science
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• v.57 no.3
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• pp.202-222
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• 2024

War is one of the most tragic and destructive incidents in human history, and it destroys precious cultural heritage. However, even amidst such devastation, certain cultural heritages convey messages of peace and human rights. This study aims to provide an in-depth interpretation of the significance of cultural heritage related to war. The research method involved an extensive review of theoretical discussions on war-related heritage. Based on this foundation, 18 cases of war heritage registered as UNESCO World Heritage Sites were selected. These cases were classified and analyzed into three categories: "physical traces of war and military fortresses," "memories of war and atrocities, and messages of peace," and "restoration and reconstruction of cities destroyed by war." The results of this study confirm that war heritage encompasses not only physical evidence of war but also multilayered and complex meanings such as the memories and traumas of war, scars and healing, and conflict and reconciliation. Based on these findings, the study proposes that war heritage should be reinterpreted and expanded to represent a "heritage of peace" and transcend its role of only including physical traces of war to embody the values of peace. This demands a shift in perception that confronts the painful memories of war while transforming them into assets for building peace. Furthermore, it urges the active exploration of ways to utilize war heritage for peaceful purposes. This study distinguishes itself from existing research by deepening the academic discourse on war-related heritage and providing a theoretical foundation for the registration of war-related heritage as World Heritage Sites.

• Korean Journal of Cognitive Science
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• v.24 no.3
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• pp.271-300
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• 2013

Human and animals are born with an intuitive ability to determine approximate numerosity. This ability is termed approximate number sense (hereafter, number sense). Evolutionarily, number sense is thought to be an essential ability for hunting, gathering and survival. According to previous research, children with mathematical learning disability have impaired number sense. On the other hand, individuals with more accurate number sense have higher mathematical achievement. These results support the hypothesis that number sense provides a basis for the development of mathematical cognition. Recently, researchers have been examining whether number sense training can lead to enhancement in mathematical achievement and changes in brain activity in relation to mathematical problem solving. Numerosity which basically represents discontinuous quantity is expected to be closely related to continuous quantity such as representations of space and time. A theory of magnitude (ATOM) states that processing of number, space and time is based on a common magnitude system in the posterior parietal cortex, especially the intraparietal sulcus. The present paper introduces current literature and future directions for the study of the common magnitude system.

• Science of Emotion and Sensibility
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• v.25 no.2
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• pp.31-44
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• 2022

Power and status are core elements that distinguish social classes and strongly influence social interaction. Although they are the foundation of social influence, they have different origins (Fragale et al., 2011). While power usually is based on personal ability or legal, institutional legitimacy, status is rooted in voluntary support from other people. Hence, whereas people with power often demonstrate egoistic behavior, those with high status show relationship-based altruism (Hasty & Maner, 2020). People recognize the difference between the two and have stereotypical beliefs or expectations about the people's behavior with high power or status (Magee, 2009). The current research tested how the judgment on social exclusion, the unique social influence of power and status, changes depending on the actor's power and status. We constructed social exclusion scenarios in which we manipulated actors' power and status and asked participants to rate an actor's pain and behavioral fairness. Participants' ratings showed that the actor's fairness and pain would differ depending on the actor's power and status (Expt. 1), which is consistent with the stereotypes above. In particular, the significant effects of the actor's anonymity in the cases of low power and high status (Expts. 2A, 2B) provide further evidence for the proposal that status but not power originates from voluntary support from others.

• The Korean Journal of Archival Studies
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• no.82
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• pp.275-309
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• 2024

This study examines artists' acts of resistance in the turbulent social climate of the 1960s and beyond, and considers the meaning of these documents in a contemporary context. It focuses on the Art Workers' Coalition, organised in 1969 by artists, writers, filmmakers and critics. Art Workers' Coalition demanded basic rights for artists in the art world and challenged war, discrimination, and injustice in society at large. Not only did they actively intervene in the structural problems of society through collective actions, protests, and statements, as seen in other acts of resistance, but they also expanded their reach through the medium of art. Studies of the Art Workers' Coalition, which can be considered as activist art of the late 1960s, have mainly chronicled their actions in the context of art history, without paying particular attention to the nature and value of the documentation produced in the process of resistance. However, the archives of Art Workers' Coalition have an informational and evidential value, which is a key value of archives, as they provide information not only about the activities of the organisation, but also about the activities of the individuals who comprised the unions, their intricate connections, and the social climate. In addition to the basic function of proving the activities of a group of artists, the archives of Art Workers' Coalition are also significant as a medium for providing information on people and events that have been marginalised in mainstream studies of artworks and artists, and for incorporating them into historical memory. Therefore, this study aims to identify the current status of Art Workers' Coalition-related archives as a medium to prove the activities of artists of the time, and to propose a different way of reading history through the contextual information of archives.