• 이베로아메리카
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• 제23권2호
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• pp.179-208
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• 2021

Luis Humberto Crosthwaite, as a witness to the accelerated changes in Tijuana since the 80's, has built a chronicle of the city based on nostalgia, fantasy, popular language, music, and criticism of the inequality between both sides of the border, but above all, on humour and irony. Among the gallery of characters that populate his stories, the common resident of the border has a special place. Here we are not talking about the passing person or newcomers, but of those who have shaped their social and personal identity from a long every day relationship with the city and the borderline, which makes up what we will call the border-being. In this work, we dialogue with the psychoanalytic concept of border personality or borderline disorder, which refers in a general way to subjects with a deep fracture between the self and the being, which prompts a psychotic search to reconcile this division. In addition, we will engage in an interdisciplinary dialogue to analyse how Crosthwaite characterises the fracture of the border-subjects in some of the stories of the book Instrucciones para cruzar la frontera, to point out the psychosis caused by the sociocultural tensions of life in a border city like Tijuana.

• 한국의류학회지
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• 제46권5호
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• pp.927-943
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• 2022

This study explores the organic form generation method, which reflects the evolving biomimetic approaches converging in fashion technology and considers the characteristics of the organic relationship between the body and the clothing to be represented in contemporary fashion. A literature review on biomimetic architecture and design-related theory and a case study on biomimetic fashion were both conducted. Images, articles, and data related to biomimicry fashion and clothing, including the increase in virtual fashion cases around 2020, were analyzed based on the literature review. Biomimicry was used to derive interdisciplinary similarities in the organic morphogenesis principle, and the result was categorized as a network system, folds and unfolds, pneumatic structures, auxetic growth, and membranes. The biomimetic fashion characteristics, including externalization of the body's interior, expansion of the body structure and silhouette, body protection, independence from the body, and post-human expression through virtualization, were analyzed. Morphogenetic processes performed through biomimetic vision are expected to aid in generating research on the possibility of mass production or popularization in the future through various experimental technical studies.

• 연구윤리
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• 제3권2호
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• pp.13-17
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• 2022

Purpose: Environmental education-research mainly focuses on the relationship between people and the environment. The purpose of this study is to focus on elaborating on the various ethical behaviors crucial in environmental education-related research. The study utilized a literature review of initial studies conducted on the topic as the primary source of information. Research design, data and methodology: This study has selected the literature content analysis as a research design because this analysis tool provided the present author numerous and tremendous previous works in the realm of authors' ethical issues within environmental education area and prior research already confirmed the high quality of an instrument. Results: Based on the investigation of the literature analysis, the findings emphasize that, while making any choice regarding environmental studies and research, authors and researchers must consider how ethical behavior might be applied to the particular circumstance. There are three ethical behaviors for authors and they can be founded in the section 3 of this study. Conclusions: As a conclusion of this study, three major subfields of environmental ethics-resource ethics, animal ethics, and ethics of nature protection-serve as the foundation for ethical behavior in research on environmental education. The ethical treatment of scarce resources, deployable resources, and environmental media.

• 공학교육연구
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• 제26권5호
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• pp.29-41
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• 2023

Using text network analysis, this research aimed to identify significant keywords associated with each period of the revised High School Engineering curriculum from 2009-2022 and to examine their interrelationships in order to analyse the observed changes. The results of this study can be summarised as follows. Firstly, a significant increase in the number of words was observed throughout the curriculum revisions, with prominent occurrences of terms such as 'engineering', 'understanding', 'problem', 'solution', 'learning', 'evaluation' and 'diversity'. Secondly, network analysis and examination of connection centrality for each subject revealed the connection relationship that represented distinct subject characteristics. Thirdly, the study of the engineering curriculum revealed shifts in emphasised content with each revision. Based on these findings, recommendations were formulated. Firstly, given the growing importance of engineering, it is imperative to conduct systematic research on engineering education in primary and secondary school contexts. Secondly, efforts should be made to strengthen the link between Engineering and Technogy･Home-economics subjects in secondary schools. Finally, high school engineering subjects should be used not only to explore engineering careers, but also to cultivate talents with interdisciplinary expertise.

• 센서학회지
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• 제32권6호
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• pp.352-356
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• 2023

The integration of bioelectronic devices with the skin is a promising strategy for personalized healthcare monitoring and diagnostics. On-skin bioelectrodes hold great potential for the real-time tracking of physiological parameters. However, persistent challenges of stability and reliability have instigated exploration beyond conventional noble metals. This study focuses on the ionic passivation and oxidation dynamics of copper-based on-skin thin-film bioelectrodes. Through parylene chemical vapor deposition, we harness a controlled thin film of parylene insulation to counter the intrinsic susceptibility of copper to oxidation in the ionic environment. The results represent the relationship among the parylene insulation thickness, copper oxidation, and electrode impedance over temporal intervals. Comparative analyses indicate that the short-term stability of the copper electrode is comparable to that of the gold electrode. Therefore, we propose a cost-effective strategy for fabricating copper-based on-skin bioelectrodes by introducing enhanced ionic stability within a discernible operational timeframe. This study enriches our understanding of on-skin bioelectronics and affordable material choices for practical use in wearable healthcare devices.

• 한국정보과학회 언어공학연구회:학술대회논문집(한글 및 한국어 정보처리)
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• 한국정보과학회언어공학연구회 2023년도 제35회 한글 및 한국어 정보처리 학술대회
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• pp.485-490
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• 2023

언어 모델 발전에 따라 사람과 유사하게 글을 생성하고 태스크를 수행하는 LLM들이 등장하고 있다. 하지만 아직까지도 기계와 사람의 수행 과정에 초점을 맞추어 차이점을 드러내는 연구는 활성화되지 않았다. 본 연구는 자연어 이해 및 생성 태스크 수행 시 기계와 인간의 수행 과정 차이를 밝히고자 하였다. 이에 이해 태스크로는 문법성 판단, 생성 태스크로는 요약 태스크를 대상 태스크로 선정하였고, 기존 주류 사전학습 모델이었던 transformer 계열 모델과 LLM인 ChatGPT 3.5를 사용하여 실험을 진행하였다. 실험 결과 문법성 판단 시 기계들이 인간의 언어적 직관을 반영하지 못하는 양상을 발견하였고, 요약 태스크에서는 인간과 기계의 성능 판단 기준이 다름을 확인하였다.

• 한국산학기술학회논문지
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• 제18권3호
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• pp.513-517
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• 2017

본 연구는 향장품 소재로 물이 IC50 680.98ppm으로 가장 높은 활성을 나타내었다. ABTS를 이용한 활성 산소 소거능에서는 50% 에탄올 추출물과 70% 에탄올 추출물에서 각각 IC50 646.94, IC50 661.94ppm으로 높은 활성을 보였다. 각 에탄올 추출물은 일정농도(100-10000ppm)에서 항산화 활성을 보였으나 에탄올 추출 농도와는 유의적인 관계를 보이지 않았다. LPS로 염증이 유도된 RAW 264.7 macrophage에 각각의 에탄올 추출물을 처리한 경우 모든 추출물에서 NO생성을 감소시키는 것을 확인 할 수 있었다. 50% 이상의 에탄올 추출물(10000ppm)에서 85%이상의 nitric oxide 생성 억제율을 보였으며, 특히 70% 에탄올 추출물에서 90% 이상의 nitric oxide 생성 억제율을 보였다. 또한 MTT assay를 실시한 결과 각 추출물의 모든 농도에서(1250-10000ppm) 세포독성이 없음을 확인 할 수 있었다. 본 연구를 통해 자소엽 에탄올 추출물은 세포독성이 없는 천연물 유래의 소재로서 각 추출농도에서 농도 의존적으로 항산화 활성과 항염활성을 가짐을 확인할 수 있었다.

• Reproductive and Developmental Biology
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• 제35권2호
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• pp.151-157
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• 2011

Clinical arthritis is typically divided into rheumatoid arthritis (RA) and osteoarthritis (OA). Arthritis-induced muscle weakness is a major problem in aged people, leading to a disturbance of balance during the gait cycle and frequent falls. The purposes of the present study were to confirm fiber type-dependent expression of muscle atrophy markers induced by arthritis and to identify the relationship between clinical signs and expression of muscle atrophy markers. Mice were divided into four experimental groups as follows: (1) negative control (normal), (2) positive control (CFA+acetic acid), (3) RA group (CFA+acetic acid+type II collagen), and (4) aging-induced OA group. DBQA/1J mice (8 weeks of age) were injected with collagen (50 ${\mu}g/kg$), and physiological (body weight) and pathological (arthritis score and paw thickness) parameters were measured once per week. The gastrocnemius muscle from animals in each group was removed, and the expression of muscle atrophy markers (MAFbx and MuRF1) and myosin heavy chain isoforms were analyzed by reverse transcription-polymerase chain reaction. No significant change in body weight occurred between control groups and collagen-induced RA mice at week 10. However, bovine type II collagen induced a dramatic increase in clinical score or paw thickness at week 10 (p<0.01). Concomitantly, the expression of the muscle atrophy marker MAFbx was upregulated in the RA and OA groups (p<0.01). A dramatic reduction in myosin heavy chain (MHC)-$I{\beta}$ was seen in the gastrocnemius muscles from RA and OA mice, while only a slight decrease in MHC-IIb was seen. These results suggest that muscle atrophy gene expression occurred in a fiber type-specific manner in both RA- and OA-induced mice. The present study suggests evidence regarding why different therapeutic interventions are required between RA and OA.

• 적정기술학회지
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• 제7권1호
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• pp.115-124
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• 2021

1단계 거점센터 사업이 종료됨에 따라 2단계 거점센터의 필요성에 대한 공감대가 형성되어 최근 2단계 글로벌문제해결거점 2030 로드맵이 제시되었다. 2단계 거점센터의 비전은 지속 가능한 지구촌 공동체 실현을 위한 기술협력 플랫폼 구축이다. 사업 방향성은 크게 3가지 핵심전략사업과 중점전략사업으로 구분된다. 핵심전략사업의 목표는 지속가능/포용적/혁신적 과학기술 ODA 사업수행을 위한 글로벌 기술협력거점 및 융합기술 스마트 플랫폼 마련이며 핵심전략사업 과제는 거점센터 중심의 글로벌 리빙랩을 통한 2단계 요소기술개발, 스마트 기술연계 체계구축 및 다자협력 사업화 추진, ICT 기반 글로벌 핵심기술 운영 플랫폼 및 성과확산이 있다. 중점전략사업의 목표는 지속가능 기술구현을 통한 글로벌 거점지역 문제해결 및 국제협력이며 중점전략사업 과제는 기존 거점센터 2단계 전략기술의 ICT package 및 스마트 구축, 글로벌 리빙랩 중점기술에 대한 스마트 연계체계 개발, 거점센터의 기술성과 운영지원을 위한 글로벌 통합기술 비즈니스 지원 플랫폼 추진이다.

• 한국환경복원기술학회지
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• 제26권1호
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• pp.47-59
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• 2023

Due to climate change and urbanization, abnormally high temperatures and heat waves are expected to increase in urban and deteriorate thermal comfort. Planting of street trees and changing the albedo of urban surfaces are the strategies for mitigating the thermal environment of urban, and both of these strategies affect the exposure and blocking of radiative fluxes to pedestrians. After measuring the shortwave and longwave radiation according to the ground surface with different albedo and the presence of street trees using the CNR4 net radiometer, this study analyzed the relationship between this two strategies in terms of thermal environment mitigation by calculating the MRT(Mean Radiant Temperature) of each environment. As a result of comparing the difference between the downward shortwave radiation measured under the right tree and at the control, the shortwave radiation blocking effect of the tree increased as the downward shortwave radiation increased. During daytime hours (from 11 am to 3 pm), the MRT difference caused by the albedo difference(The albedo of the surfaces are 0.479 and 0.131, respectively.) on surfaces with no tree is approximately 3.58℃. When tree is present, the MRT difference caused by the albedo difference is approximately 0.49℃. In addition, in the case of the light-colored ground surface with high albedo, the surface temperature was low and the range of temperature change was lower than the surrounding surface with low albedo. This result shows that the urban thermal environment can be midigate through the planting of street trees, and that the ground surface with high albedo can be considered for short pedestrians. These results can be utilized in planning street and open space in urban by choosing surfaces with high albedo along with the shading effect of vegetation, considering the use by various users.