• 디자인융복합연구
• /
• 제13권3호
• /
• pp.147-156
• /
• 2014

현대 다원화사회 및 민주사회의 진전은 인위적 창조물에 대한 일대 변화를 요구하고 있고 이러한 변화는 인간의 존엄성과 다양성을 존중하는 유니버설디자인 패러다임을 부각시켰다. 이 패러다임은 전세계적으로 지역적 특성에 따라 달리 파급되어왔으며 최근 이러한 동향을 국제적으로 파악하는 움직임이 일어나고 있다. 본 연구의 목적은 국내 유니버설디자인 연구의 국내 확산 동향을 파악하고자 하였으며 이는 융복합을 지향하는 현대사회의 학제간 교육을 고무시키는데 의미가 있다. 본 연구방법은 내용분석 방법으로서 문헌유형, 연도, 전공영역, 연구대상, 연구내용별 분석하였다. 연구결과, 국내 UD문헌은 344건이었으며 그중 학술지 논문을 대상으로 전공영역 9개의 학계로 구분되었다. 연도별로는 실내디자인학계에서 도입되어 점차 비디자인계인 교육과 의료계까지 보급되었다. 학계별 UD연구에서 연구대상은 공공시설을 위주로 실시되었으며 연구내용별로는 UD평가연구가 가장 많았다. 민주화 다원화 사회는 더욱 성숙될 것이므로 이러한 동향에 앞으로의 유니버설 디자인은 양적, 질적 확산이 지속되리라 전망된다.

• 대한통합의학회지
• /
• 제11권4호
• /
• pp.177-188
• /
• 2023

Purpose : To identify trends in studies on the intersection of neurofeedback (NF) training and rehabilitation interventions for patients with stroke, as conducted over the past decade. Methods : This review included studies published from 2012 to 2022. A comprehensive database search was conducted using keywords such as "stroke", "electroencephalogram (EEG)", "brain wave", "nerve feedback", and "upper extremity function". Results : A total of 703 studies were initially retrieved. Of these, literature predating 2012, duplicate literature, non-experimental studies, and studies that did not target patients with stroke were excluded. After this screening, we retrieved the full texts of 15 articles and re-checked whether each study met the inclusion criteria of this study. The advisory members who participated in this study consisted of people with doctoral degrees and more than 5 years of clinical experience related to the rehabilitation of patients with stroke. Disagreements were resolved through discussions. Ultimately, 8 papers met the inclusion criteria and were included in the final analysis. Despite differences in the type and duration of NF training, the combination of NF training and rehabilitation intervention was found to be effective in promoting the functional recovery of the upper extremities, eliciting positive EEG changes, and inducing neurological changes in the brain. Conclusion : A meta-analysis involving a wider search range is needed in future studies. In addition, efforts are required to generalize the clinical application of these interventions. This can be achieved by supplementing the research methodologies through extensive review studies that encompass a diverse array of study designs.

• 한국지구과학회지
• /
• 제44권6호
• /
• pp.675-692
• /
• 2023

This study used a Chatbot, a generative artificial intelligence (AI), to analyze the interaction between the Chatbot and students when exploring critical minerals from an epistemological aspect. The results, issues to be kept in mind in the teaching and learning process using AI were discussed in terms of the role of the teacher, the goals of education, and the characteristics of knowledge. For this study, we conducted a three-session science education program using a Chatbot for 19 high school students and analyzed the reports written by the students. As a result, in terms of form, the students' questions included search-type questions and non-search-type questions, and in terms of content, in addition to various questions asking about the characteristics of the target, there were also questions requiring a judgment by combining various data. In general, students had a questioning strategy that distinguished what they should aim for and what they should avoid. The Chatbot's answer had a certain form and consisted of three parts: an introduction, a body, and a conclusion. In particular, the conclusion included commentary or opinions with opinions on the content, and in this, value judgments and the nature of science were revealed. The interaction between the Chatbot and the student was clearly evident in the process in which the student organized questions in response to the Chatbot's answers. Depending on whether they were based on the answer, independent or derived questions appeared, and depending on the direction of comprehensiveness and specificity, superordinate, subordinate, or parallel questions appeared. Students also responded to the chatbot's answers with questions that included critical thinking skills. Based on these results, we discovered that there are inherent limitations between Chatbots and students, unlike general classes where teachers and students interact. In other words, there is 'limited interaction' and the teacher's role to complement this was discussed, and the goals of learning using AI and the characteristics of the knowledge they provide were also discussed.

• 수산해양기술연구
• /
• 제59권4호
• /
• pp.290-300
• /
• 2023

This study aimed to identify the actual catch situation of offshore dredge gear which is newly regulated in the legislation. It's also conducted to identify the species composition, weight of the catch including the target species and incidental catches, and to provide the basic information necessary for the resource management of aquatic organisms caught by offshore dredge. During the investigation period (from September 2022 to May 2023), a total of 61 species appeared in the test operation sea of Boryeong, Chungcheongnam-do and Gunsan, Jeollabuk-do, with 31 species of fishes, 11 species of malacostraca, six species of gastropoda, five species of bivalvia, three species of cephalopoda, three species of asteroidea, one species each of asteroidea and holothuroidea appeared. According to the results of the test operation conducted in September and November 2022, the non-catch season of Atrina (Servatrina) pectinata, 1,203 shellfishes were caught out of 2,979 caught in number, showing a bycatch rate of 59.6%, and by weight, 157.9 kg of shellfish was caught out of the total catch of 448.4 kg, showing a bycatch rate of 64.8%. On the other hand, in February and May 2023, the catch season for Atrina (Servatrina) pectinata, 3,692 fishsells were caught out of the 4,232 catches in total, showing a bycatch rate of 12.8%, and by weight, 1,185.0 kg of shellfish was caught out of the total catch of 1,293.2 kg, showing an 8.3% bycatch rate.

• 천문학회지
• /
• 제56권1호
• /
• pp.1-9
• /
• 2023

The Crab nebula is widely used as a polarization angle calibrator for single-dish radio observations because of its brightness, high degree of linear polarization, and well-known polarization angle over a wide frequency range. However, the Crab nebula cannot be directly used as a polarization angle calibrator for single-dish observations with the Korean VLBI Network (KVN), because the beam size of the telescopes is smaller than the size of the nebula. To determine the polarization angle of the Crab nebula as seen by KVN, we use 3C 286, a compact polarized extragalactic radio source whose polarization angle is well-known, as a reference target. We observed both the Crab nebula and 3C 286 with the KVN from 2017 to 2021 and find that the polarization angles at the total intensity peak of the Crab nebula (equatorial coordinates (J2000) R.A. = 05^h34^m32.3804^s and Dec = 22°00'44.0982'') are 154.2° ± 0.3°, 151.0° ± 0.2°, 150.0° ± 1.0°, and 151.3° ± 1.1° at 22, 43, 86, and 94 GHz, respectively. We also find that the polarization angles at the pulsar position (RA = 05^h34^m31.971^s and Dec = 22°00'52.06'') are 154.4° ±0.4°, 150.7° ±0.4°, and 149.0° ± 1.0° for the KVN at 22, 43, and 86 GHz. At 129 GHz, we suggest to use the values 149.0° ± 1.6° at the total intensity peak and 150.2° ± 2.0° at the pulsar position obtained with the Institute for Radio Astronomy in the Millimeter Range (IRAM) 30-meter Telescope. Based on our study, both positions within the Crab nebula can be used as polarization angle calibrators for the KVN single-dish observations.

• 대한간호학회지
• /
• 제53권6호
• /
• pp.666-677
• /
• 2023

Purpose: This study was intended to evaluate the effects of an Infant Health Promotion Program (IHPP) for mothers with their firstborn infants. Methods: This study employed a non-equivalent control group pretest-posttest design. The participants consisted of 17 mothers with their firstborn infants in the experimental group and 17 in the control group from two women's hospitals. The experimental group received eight sessions of the program for four weeks. The collected data were analyzed using the chi-square test and repeated-measures ANOVA using an SPSS/WIN ver. 22.0. Results: The experimental group receiving the program had statistically significant higher levels of infant health promotion knowledge (F = 22.91, p < .001), social support (F = 27.64, p < .001), maternal role confidence (F = 8.25, p = .005) and health promotion behavior for infants (F = 16.85, p < .001) than the control group. The experimental group had a statistically significant lower level of parenting stress than the control group (F = 29.93, p < .001). Conclusion: The study's findings indicate that the IHPP is effective in improving health promotion knowledge, social support, and maternal role confidence and decreasing parenting stress among mothers with their firstborn infants. A method of delivering intervention, focused on readily accessible online platforms, coupled with intervention strategies grounded in the theory of self-efficacy, proves to be an advantageous approach for this particular target group.

• Biomolecules & Therapeutics
• /
• 제32권2호
• /
• pp.214-223
• /
• 2024

Metabolic abnormalities in the liver are closely associated with diverse metabolic diseases such as non-alcoholic fatty liver disease, type 2 diabetes, and obesity. The aim of this study was to evaluate the ameliorating effect of robinetin (RBN) on the significant pathogenic features of metabolic failure in the liver and to identify the underlying molecular mechanism. RBN significantly decreased triglyceride (TG) accumulation by downregulating lipogenesis-related transcription factors in AML-12 murine hepatocyte cell line. In addition, mice fed with Western diet (WD) containing 0.025% or 0.05% RBN showed reduced liver mass and lipid droplet size, as well as improved plasma insulin levels and homeostatic model assessment of insulin resistance (HOMA-IR) values. CD38 was identified as a target of RBN using the BioAssay database, and its expression was increased in OPA-treated AML-12 cells and liver tissues of WD-fed mice. Furthermore, RBN elicited these effects through its anti-histone acetyltransferase (HAT) activity. Computational simulation revealed that RBN can dock into the HAT domain pocket of p300, a histone acetyltransferase, which leads to the abrogation of its catalytic activity. Additionally, knock-down of p300 using siRNA reduced CD38 expression. The chromatin immunoprecipitation (ChIP) assay showed that p300 occupancy on the promoter region of CD38 was significantly decreased, and H3K9 acetylation levels were diminished in lipid-accumulated AML-12 cells treated with RBN. RBN improves the pathogenic features of metabolic failure by suppressing the p300-CD38 axis through its anti-HAT activity, which suggests that RBN can be used as a new phytoceutical candidate for preventing or improving this condition.

• 한국음향학회지
• /
• 제28권8호
• /
• pp.774-780
• /
• 2009

본 논문은 수중 센서 네트워크에서 송수신 노드간 거리가 증가함에 따라 통신을 위한 전송전력이 급격하게 증가하는 단점을 효과적으로 극복하여 보다 낮은 전송 전력으로 통신할 수 있도록 하기 위한 방안을 제안한다. 제안한 방식은 각 노드들을 싱크노드로부터의 거리에 따라 몇 개의 그룹으로 나누고, 해당 그룹에 지정된 대역을 활용하게 한다. 즉, 멀리 떨어져 있어 주파수 증가에 따른 감쇠가 큰 노드들은 저주파수를, 가까운 거리에 있어 주파수 증가에 따른 감쇠가 적은 노드들은 고주파수를 활용하여 전체 노드가 일정 수준 이상의 신호 대 잡음비를 유지함으로써 전송전력을 줄일 수 있게 된다. 각 센서노드들의 거리에 따른 주파수 별 신호 감쇠 특징을 활용하여 그룹의 크기에 따라 가변되는 전송전력을 최소화하는 최적 그룹의 크기를 찾고 그룹의 크기에 비례하여 그룹 별 대역을 할당하는 알고리즘을 제안한다. 제안한 방식은 기존의 그룹을 나누지 않는 방식에 비해 10 dB이상 감소된 전송 전력을 보였다.

• 한국음향학회지
• /
• 제25권4호
• /
• pp.184-190
• /
• 2006

최근에 Lee 등은 1차원 수평배열 센서만을 사용하여 다중경로를 통해 들어오는 신호로부터 표적의 3차원 위치를 추정하였다. 그러나 이 기법에서 음속은 수심에 상관없이 일정하다고 가정하였기 때문에 음속이 수심에 따라 다양하게 변화하는 실제 해양환경에서는 그 추정 성능이 현저하게 저하된다. 따라서 본 논문에서는 비균일 음속 환경에 적합한 근거리 표적의 3차원 위치추정 기법을 제안한다. 제안한 기법에서는 선형의 음속구조를 가지는 근거리 다중경로 환경에서 음파전달 모델을 기반으로 한 위치추정함수를 구성하였으며 이로부터 표적의 방위각, 거리 및 깊이를 3차원 탐색을 통하여 추정하였다. 선형 음속구조 및 실제 환경과 유사한 비선형 음속구조를 적용하여 제안한 기법의 성능을 기존의 기법과 비교, 분석하였으며 기존의 기법에 비해 거리 추정 오차는 최대 100m, 깊이 추정 오차는 50m정도 감소됨을 확인하였다.

• 인지과학
• /
• 제35권2호
• /
• pp.113-127
• /
• 2024

주의와 정서는 밀접하게 상호작용한다, 이중 불안정서은 주의 메커니즘을 수정하여 위협 관련 정보를 더 효과적으로 처리한다고 알려져 있다. 이런 현상은 주로 정서스트룹 과제의 연구결과로 나타났는데, 이 과제에서 불안한 참가자는 중성적 단어보다 부정적 단어의 색이름을 말하는데 더 늦은 반응을 보인다는 것이며, 이를 불안 관련 주의편향이라고 한다. 그러나 이런 주의편향 현상이 정보처리의 어떤 단계에서 발생하는지는 아직 많은 논란이 있어왔다. 본 연구에서는 정서스트룹과제를 변형하여 단어와 색을 분리하고 두 자극의 제시 시간을 조작하여(SOA 0ms, 120ms, & 240ms) 정서스트룹관련 주의편향이 정보처리의 초기 단계에서 일어나는지를 조사하였다. 실험결과 불안을 가진 참가자의 경우 0ms의 SOA에서만 부정단어에 의해 간섭 효과가 나타난 반면, 불안하지 않은 참가자의 경우 간섭 효과는 나타나지 않았다. 이러한 결과는 불안이 주의 메커니즘을 조절하여 정서정보처리의 초기단계에서 부정 정보를 더 빠르게 처리하도록 조절한다는 주의의 초기개입 가설을 지지하는 것으로 나타났다.