• 재활치료과학
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• 제12권2호
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• pp.9-23
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• 2023

목적 : 작업치료 분야에서 편측무시 중재를 사용한 연구 중 단일대상연구를 적용한 문헌들의 내용과 특성을 확인하고, 중재 효과 및 질적 수준을 분석하기 위해 실시하였다. 연구방법 : 본 연구는 체계적 고찰이며, 2012년부터 2022년까지 최근 10년간 국내 학회지에 게재된 단일대상연구로 진행된 논문을 대상으로 하였다. 결과 : 논문 분석 결과 뇌졸중 환자를 대상으로 시행하였으며 중재제거설계가 7편으로 가장 많은 비율을 차지했고 2편이 복수 기초선 설계였다. 중재제거설계 중 4편이 ABA설계를 사용하였다. 편측무시에 적용한 중재 효과 크기를 분석한 결과 중재 효과 크기는 '매우 효과적인 중재'는 7회, '효과적인 중재'는 18회, '의심스러운 중재'는 5회, '비효과적인 중재'는 6회로 나타났다. 논문들의 질적 수준을 분석한 결과 높은 수준이 6편, 중간 수준이 3편으로 낮은 수준의 연구는 한 편도 없었다. 결론 : 연구 결과 편측무시 중재들은 불빛 자극, 로봇 보조 능동운동, 진동 자극 등 다양한 방법을 적용하고 있었다. 본 연구의 분석을 통해 임상에서 편측무시 환자에게 중재를 적용할 수 있을 것으로 생각된다.

• Asian Pacific Journal of Cancer Prevention
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• 제16권3호
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• pp.1169-1173
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• 2015

Background: Paris polyphylla (Chinese name: Chonglou) had been traditionally used for a long time and shown anti-cancer action. Based on the previous study that paris polyphylla steroidal saponins (PPSS) induced cytotoxic effect in human lung cancer A549 cells, this study was designed to further illustrate the mechanisms underlying. Materials and Methods: The mechanisms involved in PPSS-induced A549 cell death were investigated by phase contrast microscopy and fluorescence microscopy, flow cytometry and western blot analysis, respectively. Results: PPSS decreased the proportion of viable A549 cells, and exposure of A549 cells to PPSS led to both apoptosis and autophagy. Apoptosis was due to activations of caspase-8, caspase-3, as well as cleavage of PARP, and autophagy was confirmed by up-regulation of Beclin 1 and the conversion from LC3 I to LC3 II. Conclusions: PPSS was able to induce lung cancer A549 cell apoptosis and autophagy in vitro, the results underlining the possibility that PPSS would be a potential candidate for intervention against lung cancer.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권12호
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• pp.5422-5441
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• 2016

Despite the abundant literature in the field, there is still the need to find a time-efficient, highly accurate, easy to deploy and robust localization algorithm for real use. The algorithm only involves minimal human intervention. We propose an enhanced Received Signal Strength Indicator (RSSI) based positioning algorithm for Wi-Fi capable devices, called the Dynamic Weighted Evolution for Location Tracking (DWELT). Due to the multiple phenomena affecting the propagation of radio signals, RSSI measurements show fluctuations that hinder the utilization of straightforward positioning mechanisms from widely known propagation loss models. Instead, DWELT uses data processing of raw RSSI values and applies a weighted posterior-probabilistic evolution for quick convergence of localization and tracking. In this paper, we present the first implementation of DWELT, intended for 1D location (applicable to tunnels or corridors), and the first step towards a more generic implementation. Simulations and experiments show an accuracy of 1m in more than 81% of the cases, and less than 2m in the 95%.

• 보건교육건강증진학회지
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• 제30권5호
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• pp.153-162
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• 2013

Objectives: The purpose of this study was to examine the effect of the horticultural activity program on high school students' stress, self-esteem and quality of life. Methods: Research method used in this was nonequivalent control group pre-test and post-test design. The number of students in experimental and control group were 25 students; The horticultural activities were conducted 15 times twice a week from May $30^{th}$ 2012 to July $18^{th}$ 2012. Results: There were statistically significant differences of stress scores(F=12.678, p=.001) self-esteem scores(t=-2.836, p=.009), quality of life scores (t=-2.958, p=.007) between the experimental and control group. Conclusions: Based on the results, horticultural activity program for high school students was effective in decreasing stress, increasing self-esteem and quality of life. Therefore the horticultural activity program can be adopted as a effective intervention for high school students.

• 한국학교보건학회지
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• 제32권1호
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• pp.1-9
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• 2019

Purpose: The purpose of this study was to identify the prevalence, subtypes and risk factors of Irritable Bowel Syndrome (IBS) among male adolescents. Methods: The survey was conducted on male adolescents (n=441) attending a high school. Rome IV criteria was used to diagnose IBS. Data on health promoting behaviors, psychological distress, sleep hygiene practices were collected using self-administered structured questionnaires. Results: The prevalence of IBS was 11.1% and the subtypes were mixed (77.5%), unclassified (10.2%), diarrhea-predominant (8.2%), and constipation-predominant (4.1%). Risk factors influencing IBS were sleeping time (Odds Ratio [OR]=1.00, 95% Confidence Interval [CI]: 0.99~1.00), anxiety, a subfactor under psychological distress (OR=1.12, 95% CI: 1.02~1.22), and arousal-related behaviors, a subfactor under sleep hygiene practices (OR=1.10, 95% CI: 1.03~1.17). Conclusion: Our findings indicated that IBS is a common problem in male adolescents. It is necessary to develop school-based intervention strategies addressing sleeping time, anxiety and arousal-related behaviors in order to prevent and improve IBS in male adolescents.

• Biomolecules & Therapeutics
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• 제27권4호
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• pp.342-348
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• 2019

Ossification of the posterior longitudinal ligament (OPLL) can be defined as an ectopic ossification in the tissues of spinal ligament showing a hyperostotic condition. OPLL is developed mostly in the cervical spine and clinical presentations of OPLL are majorly myelopathy and/or radiculopathy, with serious neurological pathology resulting in paralysis of extremities and disturbances of motility lowering the quality of life. OPLL is known to be an idiopathic and multifactorial disease, which genetic factors and non-genetic factors including diet, obesity, physical strain on the posterior longitudinal ligament, age, and diabetes mellitus, are involved into the pathogenesis. Up to now, surgical management by decompressing the spinal cord is regarded as standard treatment for OPLL, although there might be the risk of development of reprogression of ossification. The molecular pathogenesis and efficient therapeutic strategy, especially pharmacotherapy and/or preventive intervention, of OPLL has not been clearly elucidated and suggested. Therefore, in this review, we tried to give an overview to the present research results on OPLL, in order to shed light on the potential pharmacotherapy based on molecular pathophysiologic aspect of OPLL, especially on the genetic/genomic factors involved into the etiology of OPLL.

• 한국학교보건학회지
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• 제28권2호
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• pp.89-98
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• 2015

Purpose: The purpose of this study was to determine the factors that influence suicidal ideation and suicidal attempts of adolescents who had been bullied. Methods: This study used data extracted from Korea Youth Risk Behavior Web-Based Survey of 2014. The data of 1,926 adolescents, in total, who had experienced violence were included in the analysis, The analysis was done using SPSS/WIN. Results: The adolescents with an experience of being bullied were more likely to engage in suicidal ideation and suicidal attempts than the average teenagers in Korea. In addition, suicidal thoughts were affected by gender, experience of habitual drug use, subjective happiness, as well as sadness and despair. Suicidal attempts were influenced by gender, grade, smoking experience, experience of habitual drug use, size of the city of residence, subjective happiness, sadness and hopelessness, existence of people to get counseling, and habit of walking for 10 minutes every day. Conclusion: More attention should be given to the suicidal risk of adolescents having experienced violence. Further studies are required to develop an intervention program for suicide prevention targeting adolescents who have experienced violence and assess the program's effectiveness.

• 한국수학교육학회지시리즈A:수학교육
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• 제57권4호
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• pp.371-391
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• 2018

The purpose of this study is to analyze manifestation examples and effects of group creativity in mathematical modeling and to discuss teaching and learning methods for group creativity. The following two points were examined from the theoretical background. First, we examined the possibility of group activity in mathematical modeling. Second, we examined the meaning and characteristics of group creativity. Six students in the second grade of high school participated in this study in two groups of three each. Mathematical modeling task was "What are your own strategies to prevent or cope with blackouts?". Unit of analysis was the observed types of interaction at each stage of mathematical modeling. Especially, it was confirmed that group creativity can be developed through repetitive occurrences of mutually complementary, conflict-based, metacognitive interactions. The conclusion is as follows. First, examples of mutually complementary interaction, conflict-based interaction, and metacognitive interaction were observed in the real-world inquiry and the factor-finding stage, the simplification stage, and the mathematical model derivation stage, respectively. And the positive effect of group creativity on mathematical modeling were confirmed. Second, example of non interaction was observed, and it was confirmed that there were limitations on students' interaction object and interaction participation, and teacher's failure on appropriate intervention. Third, as teaching learning methods for group creativity, we proposed students' role play and teachers' questioning in the direction of promoting interaction.

• 한국멀티미디어학회논문지
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• 제25권10호
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• pp.1499-1511
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• 2022

In the context of globalization, circulation between cities has become more frequent. The airport is no longer just a place for boarding, disembarking, and transportation, but a public place that serves as the communication function of the "aviation city". The intervention of public art in the airport space not only gives users a sense of space experience, but also becomes a unique carrier for city and country image shaping. The purpose of this paper is to study the emotional value brought by airport public art to users, and to investigate the correlation analysis of public art design elements and user preferences based on this premise. The research methods are machine learning method and SPSS 21.0. The user's emotional value is introduced in the big data evaluation, and the preference and inclination of airport users to various elements of public art are analyzed by questionnaire. Through the research conclusion, the preference and main contradiction of users in the airport for the four dimensions of public art design elements are obtained. Opinions and optimization methods to provide reference data and theoretical support for public art design.

• 한국콘텐츠학회논문지
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• 제16권8호
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• pp.729-742
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• 2016

본 연구의 목적은 부모양육태도 및 또래요인이 청소년의 음란물 매체 몰입에 미치는 영향을 검증하기 위해 설계되었다. 이를 위해 한국청소년정책연구원에서 실시한 '한국 아동 청소년패널조사(Korean Children and Youth Panel Survey: KCYPS)'의 초등학교 4학년 패널 4차년도(2013년, 중1)와 중학교 1학년 패널 4차년도(2013년, 고1) 자료를 활용하였다. 패널 조사에서 조사된 사례 수는 초등학교 4학년 4차년도 패널 대상 2,378명과 중학교 4차년도의 패널 대상 2,361명이었으나 음란물 매체몰입 문항에서 응답이 이루어진 사례(중1= 190명, 고1=530명) 720명의 설문지가 최종분석에 사용되었다. 연구결과 남학생이 여학생보다 음란물 매체 몰입 비율이 높았다. 또한, 부모양육태도 중 비일관성과 과잉간섭이, 또래요인 중 또래애착 및 비행친구 수가 청소년 음란물 매체 몰입에 유의한 영향을 미쳤다. 이러한 연구결과를 바탕으로 청소년 음란물 매체 몰입에 대한 개입을 그동안의 통제적 개입에 앞서 부모교육 강화 및 또래관계를 높이는 방안이 중요함을 제언하였다.