• 한국운동역학회지
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• 제24권3호
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• pp.209-216
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• 2014

The purpose of this study was to explore the effect of 8 weeks after school classes of track sports on students' start motion through kinematic variables. 30 students in D National university of education participated for this study. These students divided into two groups, 17 students for experimental group and 13 students for control group. The two groups participated in general athletic class as common class, and the experimental group participated in after school class additionally. The general class taught track and jump skill for 3 hours a week, and the after school class taught only athletic running skill for 30 minutes a week. Pre and post test assessed to assess students' kinematic changes. Findings indicated that velocity and step rate were increased, and contact time, step length, displacement of center of mass were decreased in the experimental group. In the control group, early velocity, knee/hip angle velocity were increased, and contact time, step length, displacement of center of mass were decreased. In conclusion, the students who only participated in general class, could not maintain athletic skills obtained from the class. However, students who participated in both general and after school class accomplish athletic start skill. This is because Continuous learning effect helped students keep the skill and did not lose the skill. Thus, in order for students to learn specific sport skills, joining after school class with general class together is recommended.

• BMB Reports
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• 제57권2호
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• pp.116-121
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• 2024

We investigated the therapeutic potential of bone marrow-derived mesenchymal stem cell-conditioned medium (BMSC-CM) on immortalized renal proximal tubule epithelial cells (RPTEC/TERT1) in a fibrotic environment. To replicate the increased stiffness characteristic of kidneys in chronic kidney disease, we utilized polyacrylamide gel platforms. A stiff matrix was shown to increase α-smooth muscle actin (α-SMA) levels, indicating fibrogenic activation in RPTEC/TERT1 cells. Interestingly, treatment with BMSC-CM resulted in significant reductions in the levels of fibrotic markers (α-SMA and vimentin) and increases in the levels of the epithelial marker E-cadherin and aquaporin 7, particularly under stiff conditions. Furthermore, BMSC-CM modified microRNA (miRNA) expression and reduced oxidative stress levels in these cells. Our findings suggest that BMSC-CM can modulate cellular morphology, miRNA expression, and oxidative stress in RPTEC/TERT1 cells, highlighting its therapeutic potential in fibrotic kidney disease.

• 영재교육연구
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• 제21권2호
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• pp.465-484
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• 2011

본 연구의 목적은 일반 학생, 영재학급 영재학생, 영재교육원 영재학생들의 학교생활만족도와, 영재학생이 영재학급과 일반학급에서의 느끼는 학교생활만족도를 각각 비교하는 것이다. 이 연구를 위하여 초등 영재학생 76명, 초등 일반학생 125명을 대상으로 학교생활만족도를 조사하였다. 본 연구의 결과는 다음과 같다. 첫째, 일반학급, 영재학급, 영재교육원 학생의 일반학급에서의 학교생활만족도는 유의미한 차이가 있는 것으로 나타났다. 영재학급 영재학생의 일반학급 학교생활만족도가 가장 높았으며, 다음으로 영재교육원 영재학생, 일반학급 학생 순으로 학교생활만족도가 유의미하게 높았다. 둘째, 영재교육기관이 다른 영재학생의 소속 영재교육기관 생활만족도를 조사한 결과 영재학급의 학생이 영재교육원 학생에 비해 생활만족도가 유의미하게 높게 나타났다(p<.05). 셋째, 영재학생의 일반학급에서의 생활만족도와 영재교육기관에서의 생활만족도를 조사한 결과 영재교육기관에서의 생활만족도가 유의미하게 높게 나타났다(p<.05). 넷째, 영재학생의 성별 및 학년에 따른 학교생활만족도는 영재학급, 영재교육원 학생에서 유의미한 차이를 나타내지 않았다(p>.05).

• 대한생식의학회:학술대회논문집
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• 대한불임학회 2006년도 The 5th Biannual Meeting of Pacific Rim Society for Fertility and Sterility
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• pp.175.2-175.2
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• 2006

• Korean Journal of Radiology
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• 제24권4호
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• pp.371-371
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• 2023

• Journal of Dental Anesthesia and Pain Medicine
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• 제21권2호
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• pp.87-98
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• 2021

Patients with disabilities have difficulties tolerating in-office dental treatment due to limitations relating to cooperation and/or physical problems. Therefore, they often require general anesthesia or sedation to facilitate safe treatment. When deciding on dental treatment under general anesthesia, the plan should be carefully determined because compared to general patients, patients with disabilities are more likely to experience anesthetic complications because of their underlying medical conditions and potential drug interactions. Clinicians prefer simpler and more aggressive dental treatment procedures, such as extraction, since patients with impairment have difficulty maintaining oral hygiene, resulting in a high incidence of recurrent caries or restorative failures. This study aimed to review the available literature and discuss what dentists and anesthesiologists should consider when providing dental treatment to patients with severe disability under general anesthesia.

• 한국초등과학교육학회지:초등과학교육
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• 제17권2호
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• pp.67-77
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• 1998

The result of studying primary science education in Korea the first stage under CHOSUN Government General is as follows and it could be seen that it was managed under considerably different philosophy of education than that of the Ministry of Education, Japan. 1) Weekly 2 hours of 'science' were taught at 3rd and 4th grade of primary school. 2) CHOSUN Government General emphasized 'practicality' in the regulation of primary science education. 3) During the transitional period science text compiled by the office of education was revised and used. 4) First primary science text compiled by CHOSUN Government General was "Science Textbook for Commom School" (1913) and it was filled with sentences stimulating interest of students and at end of each chapter there were exercise problems.

• Korean Journal of Mathematics
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• 제28권3호
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• pp.405-419
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• 2020

The zeroth-order general Randić index ⁰R_α(G) of the graph G is defined as ∑_u∈V(G)d(u)^α, where d(u) is the degree of vertex u and α is an arbitrary real number. In this paper, the maximum value of zeroth-order general Randić index on the graphs of order n with a given clique number is presented for any α ≠ 0, 1 and α ∉ (2, 2n-1], where n = |V (G)|. The minimum value of zeroth-order general Randić index on the graphs with a given clique number is also obtained for any α ≠ 0, 1. Furthermore, the corresponding extremal graphs are characterized.

• 교육시설
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• 제15권6호
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• pp.47-54
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• 2008

Because the use of furniture have changed importantly, the relationship between general classroom in primary school and using furniture has got more important than before. There are two distinctive in furniture of general classroom. One is the improving the quality of education environment, and another is the improving the effect of studying. Therefore, the goal of this study is to change the function of general classroom for goal of these two characteristic. Through this study, the goal of this study make a future vision of better furniture design of general classroom.

• 대한족부족관절학회지
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• 제8권1호
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• pp.114-115
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• 2004

A 18-year-old male soccer player had painful triggering and occasional locking of the great toe caused by entrapment of the flexor hallucis longus tendon within the flexor sheath posterior to the right medial malleolus. After other treatment modalities failed, the condition was relieved by a surgical procedure that removed the nodule on the flexor hallucis longus tendon and the ganglion under flexor retinaculum. Tendon rupture was not found, although there was tendinitis.