• Korean Journal of Pharmacognosy
• /
• v.11 no.1
• /
• pp.11-14
• /
• 1980

A Study of the effects of the root components of Angelica gigas Nakai (Umbelliferae) on voluntary activity in mice has confirmed that there are: 1) MeOH soluble extract, MeOH insoluble extract, decursin and decursinol were antagonized against the voluntary activity in mice pretreated with a dose of caffeine natrium benzoate 30mg/kg. 2) MeOH insoluble extract showed higher depressant effect than MeOH soluble extract. 3) The depressant activity of decursinol was significantly more highly effective than that of decursin.

• PNF and Movement
• /
• v.3 no.1
• /
• pp.55-66
• /
• 2005

목적 : 본 연구는 경미한 경부 통증을 가진 대상자의 경부 운동감각과 경부 통증과 기능에 대하여 조사하였다. 방법 : 본 연구의 대상자는 자발적으로 참여한 81명의 (나이 18-30세, 평균 23.2) 건강한 대학생으로 구성되었으며, 측정은 경부운동감각과 통증 및 기능에 대하여 측정하였다. 경부운동감각은 편안히 앉은 자세에서, 경부 후인과 좌우 회전의 중간 관절 범위에서 대상자의 두부에 착용하지 않는 기구를 사용하여 측정하였다. 경부 통증과 기능은 가장 흔히 쓰이는 4가지 설문지를 한국어로 번역하고 문화적으로 적응하는 과정을 거쳐 사용하였다. 결과 : 대상자들을 경부 통증 빈도에 따라 세 집단으로 (통증 없음, 월별, 주별) 구분하였다. 각 집단간에는 4가지 설문지로 조사한 경부통증과 기능에는 차이를 보이지 않았으나, 경부운동감각은 통증 빈도가 높을수록 더 민감하게 나타났다 결론 : 경부 운동감각은 편안히 앉은 자세에서 경부 후인과 좌 우회전의 중간 관절범위에서 측정하였으며, 경미한 경부 통증 빈도가 높을수록 경부 운동감각은 더 민감하게 나타났다.

• Korean journal of communication and information
• /
• v.33
• /
• pp.253-285
• /
• 2006

This study focuses on the on-line civic social movement which is based on the individual dimension. This kind of on-line social movement is organized voluntarily by the citizens who have the common concerns about issues and problems raised in the net. In the context, this paper analyzes what is the characteristics of discourse formed in the process of public discussion concerned about the anti-Nix movement. And, this study also analyzed who was processed the anti-Nix movement through which steps and what kinds of way in the case of anti-nix movement. Based on the research results, the anti-Nix movement is led by the organizer of the movement and the active participants of it. This study also found out that the various movement strategies of the site organizer were the major reasons of the success of anti-Nix movement. This study also found out that the discussion board of anti-Nix movement is close to the function and role of traditional public sphere rather than those of the swearwords and libels.

• Convergence Security Journal
• /
• v.15 no.4
• /
• pp.149-154
• /
• 2015

The aim of this study is to suggest the change of behavior and motor skill of children with intellectual disabilities participating functional games using virtual reality. For this purpose, 5 children with intellectual disabilities completed a 16-week functional game program twice a week. The result was as following; the application of functional games using virtual reality has positive effect on behavior and motor skill -static coordination, hand motion coordination, normal motion coordination, motor speed, simultaneous spontaneous motion, single motion competency. The application and utilization of functional games using virtual reality systematically of children with intellectual disabilities can bring an improvement on their overall development.

• Journal of the Korea Society of Computer and Information
• /
• v.26 no.4
• /
• pp.133-142
• /
• 2021

The purpose of this study was to examine the most suitable exercise for the elderly women by comparing the changes in body composition and physical function fitness after modern dance, aquarobic and combined exercise programs for the elderly women. The subjects of this study were 47 elderly women in J-do, chosen as MDG(n=13), AEG(n=11), CEG(n=11) and CG(n=12) for participated for 60 minutes/day and three times/wk for 12 weeks. The results of grip strength, chair stand, arm curl, 2 minute step, 244cm up and go was significantly than in the control group. Back scratch was decreased significantly after exercise only in the modern dance group and combined exercise group but there was no change in chair sit and reach. These results suggest that various exercises were found to play a positive role in maintaining and improving fitness for the elderly women. In addition, additional exercise programs are needed to improve flexibility and mobility of joints for the elderly. It is thought that it is important to voluntarily participate in a movement that suits your interests to make it sustainable.

• Journal of Korean Elementary Science Education
• /
• v.33 no.4
• /
• pp.751-761
• /
• 2014

이 연구의 목적은 과학적 예상 과정에서 초등학생의 안구운동을 분석하여 과학적 예상의 인지전략을 발견하는 것이다. 예상은 관찰, 측정, 추론과 같은 기초 탐구 과정들을 통해 문제를 해결하는 중요한 탐구 능력이다. 6학년 초등학생 40명이 자발적으로 이 연구에 참여했으며, 과학적 예상 두 과제를 해결하였다. 예상 과제는 점진적으로 변화하는 모형의 다음 모양을 예상하는 것과 14일 간의 기온 그래프를 보고 다음 5일간의 기온을 예상하는 과제였다. 과학적 예상 과정에서 참가자들의 안구 운동을 기록하기 위해 SMI사의 안구운동 추적기를 사용하였다. 40명의 참가자들 중 15명(그룹 A)은 두 과제를 모두 해결하였으며, 17명(그룹 B)은 하나의 과제만 해결하였고, 8명(그룹 C)은 두 과제 모두 해결하지 못했다. 예상 능력이 높은 학생과 낮은 학생의 인지 전략의 차이를 규명하기 위해 그룹 A와 그룹 C의 안구운동을 비교 분석하였다. 연구 결과는 다음과 같다. 첫째, 그룹 A는 짧은 시간 동안 문제를 읽고 문제의 주요어에 집중했으며, 단서들을 비교하고 경향성을 찾고 답을 재확인하는 활발한 움직임을 보였다. 그룹 C는 문제 자체를 이해하는데 긴 시간이 걸렸으며, 주요어와 단서를 찾지 못하고, 무의미한 짧고 빠른 도약 안구 운동을 보였다. 둘째, 그룹 A와 C의 안구 운동의 고정, 도약, 시선 경로를 분석한 결과, 6가지의 안구 운동 패턴이 나타났다. 셋째, 안구운동 분석결과를 토대로 참가자들의 인지 전략을 유동전략과 고착전략의 두 가지로 구분하였다. 본 연구에서 규명한 과학적 예상의 인지전략은 교사들이 과학적 예상의 문제 해결 단계에서 학생들이 겪는 어려움을 이해하고, 예상 능력을 향상시키는 프로그램을 개발하는 것에 도움이 될 것이다.

• Journal of the Korean Society of Propulsion Engineers
• /
• v.22 no.1
• /
• pp.28-35
• /
• 2018

In order to analyze the flammability limit and structure of the gaseous methane-gaseous oxygen diffusion flame formed through a shear coaxial injector, combustion experiments were carried out according to the condition of injector recess and propellant mass-flow rate. As a result, it was confirmed that stable anchored flame was observed even at the high oxygen Reynolds number as the propellant momentum flux ratio increased, and that the recess had no significant influence on the flame shape and flammability limit. The anchored flame visualized through a chemiluminescence showed the maximum OH radical emission intensity at a specific position, irrespective of the propellant injection condition, and the radical intensity was greatly reduced by the injector recess.

• Journal of Korea Game Society
• /
• v.18 no.4
• /
• pp.53-64
• /
• 2018

The digital era opens with the changing times and many parts of life has become convenient. With this convenience of living, the obesity rate of people is gradually increasing, and the necessity of exercise is emerging. However, many studies have shown that many people do not exercise or stop exercising in three to six months. In this paper, we have designed and developed a "Walking Pet" prototype, a healthcare-inspired AR game, based on the theoretical background of exercise and the precedent studies to verify these facts. The developed "Walking Pet" provides exercise data to motivate the person to exercise and apply the pet system to eventually enjoy the exercise. In order to verify the effectiveness of the "Walking Pet" prototype developed in this paper, we surveyed 100 males and females in need of health care applications and surveyed the satisfaction of pure functional aspects.

• Journal of the Korea Convergence Society
• /
• v.12 no.8
• /
• pp.317-325
• /
• 2021

By analyzing the recognition analysis and motivation method of the determinants, this study investigates the future development direction of health exercise biodata analysis face-to-face practice education content. The participants were 40 millennial and zoomers (MZ) generation college graduates. Factors related to the decision to participate in face-to-face practice classes in the field of health exercise biodata and bio-digital content convergence technology in the era of COVID-19 were measured. Of the participants, 67.5% voluntarily decided to participate in small group classes while observing social distancing rules. This study presented the most effective and learning motive methods to participate in face-to-face training. Health exercise biodata needs improvement in terms of integrating with adjacent disciplines such as big data.

• Tuberculosis and Respiratory Diseases
• /
• v.65 no.3
• /
• pp.222-224
• /
• 2008

Spontaneous pneumomediastinum is defined as a clinical syndrome that's characterized by the presence of air in the mediastinal space, which is not due to an old previous injury or surgery. The condition is caused by a sustained increase in the intraalveolar and intrabronchial pressure with extravasated air dissecting along the perivascular spaces of the mediastinum. This is an uncommon complication of sports activity. The most common symptom is chest pain. This diagnosis should be considered for younger people who present with pleuritic chest pain or dyspnea and a characteristic crackling feel (known as subcutaneous crepitation) when touching of the skin covering the chest wall or neck, and they look otherwise well with normal vital signs. Usually no treatment is required, but the mediastinal air will be absorbed faster if the patient inspires high concentrations of oxygen. We present here a case of spontaneous pneumomediastinum that occurred during a Taekwondo match, along with a review of the relevant literature.