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Nu-ri Kim,Sun-hee Ahn,Gyeong-tae Gwak,Hwa-ik Yoo,Oh-yun Kwon 한국전문물리치료학회 2021 한국전문물리치료학회지 Vol.28 No.3
Background: The serratus posterior inferior (SPI) muscle originates from the spinous pro-cess of T11-L2 and inserts at the lower border of the 9–12th ribs. This muscle is involved in thoracolumbar rotation and stability. Several positions can be used to improve trunk stability; the quadruped position is a good position for easily maintaining a neutral spine. In particular, during one arm lifting, various muscles act to maintain a neutral trunk position, and the SPI is one of these muscles. If trunk stability is weakened, uncontrolled trunk rotation may occur at this time. Tape can be used to increase trunk stability. There have been no studies on the effect of taping applied to the SPI muscle on thoracolumbar junction (TLJ) stability. Objects: This study compared the TLJ rotation angle between three different conditions (without taping, transverse taping, and SPI muscle direction taping). Methods: Thirty subjects were recruited to the study (18 males and 12 females). The TLJ rota-tion angle was measured during one arm lifting in a quadruped position (ALQP). Two taping methods (transverse and SPI muscle direction taping) were applied, and the TLJ rotation angle was measured in the same movement. Results: SPI muscle direction taping significantly reduced TLJ rotation compared to that with-out taping (p < 0.001) and with transverse taping (p < 0.001). There was a significant dif-ference in the TLJ rotation angle between transverse taping and SPI muscle direction taping (p < 0.017). Conclusion: SPI muscle direction taping reduces the TLJ rotation angle during ALQP. There-fore, SPI muscle direction taping is one method to improve TLJ stability and reduce uncon-trolled TLJ rotation during ALQP.
교육용 소프트웨어의 효율적인 관리를 위한 XML 기반 관리 시스템.
이누리 ( Nu-ri Lee ),정민식 ( Min-six Jung ),이윤배 ( Yun-bae Lee ) 한국정보처리학회 2007 한국정보처리학회 학술대회논문집 Vol.14 No.1
최근 학교 교육 현장에서는 교수-학습의 효과 극대화를 위하여 교육정보화 사업이 추진되고 있다. 이를 위하여 교육인적자원부는 컴퓨터 기반 수업(CAI)을 지원하고 특히 학습자가 인지적 구조를 구성할 수 있는 학습 환경 조성을 위해 우수한 교육용 소프트웨어를 개발·보급하여 활용할 수 있도록 지원하고 있다. 그런데 학교 현장에서는 소프트웨어 구입에 따라 매년 그 보유수가 늘어나고 있으며, 이에 따른 효율적인 교육용 소프트웨어 관리의 필요성이 증가되고 있다. 따라서 본 논문에서는 교육용 소프트웨어를 교수·학습용 소프트웨어, 업무 지원용 소프트웨어, 시스템 관리 소프트웨어 3가지로 분류하여 등록하고 사용자별 사용 구분을 두어 보다 효과적으로 시스템을 사용할 수 있는 XML 기반 관리 시스템을 제안한다.
Seo, Nu-Ri,Ji, Min-Kyung,Park, Sang-Won,Lee, Kwangmin,Bae, Jung-Chan,Yun, Kwi-Dug,Park, Chan,Oh, Gye-Jeong,Kim, Ji-Hyun,Lim, Hyun-Pil American Scientific Publishers 2017 Journal of Nanoscience and Nanotechnology Vol.17 No.4
<P>Porphyromonas gingivalis (P. gingivalis) is one of main bacteria that adheres to the surface of dental implants and causes peri-implantitis. The purpose of this study was to observe the surface characteristics of titanium processed with either titanium nitride (TiN) sputter coating or plasma nitriding and to evaluate the subsequent adhesion of P. gingivalis. Specimens were divided into three groups: commercially pure (CP) titanium (control group), TiN sputter-coated titanium (group S), and plasma-nitrided titanium (group P). Surface characteristics such as roughness, morphology, and the formation of a thin TiN film or a nitriding layer were assessed. Adhesion of P. gingivalis in the three groups was determined by means of the crystal violet staining assay, and results were compared with one-way ANOVA, with post hoc comparison using Tukey's test (alpha = 0.05). Surface roughness values for the control group, group S, and group P were 0.08 +/- 0.02 mu m, 0.19 +/- 0.04 mu m, and 0.13 +/- 0.02 mu m, respectively. In group S, the TiN layer was 1.36 +/- 0.1 mu m thick, and nitrogen was detected on the surface of the specimens in group P, confirming formation of a nitrided layer. The level of adhesion in group P was significantly higher than that in the control group and in group S (p < 0.05), but there was no significant difference between the control group and group S. Within the limitations of this study, TiN sputter coating did not affect adhesion of P. gingivalis on the titanium surface, whereas adhesion was increased on the plasma-nitrided titanium surface.</P>