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Nanoporous Thin Films of Fully Alicyclic Polyimides
Yu, Hwan-Chul,Kumar, S. Vijay,Song, Young-Kyu,Choi, Ji-Young,Kudo, Kazuaki,Kim, Joong-Gon,Oh, Se-Young,Chung, Chan-Moon 한국고분자학회 2011 Macromolecular Research Vol.19 No.12
Nanopore generation could be accomplished in thin films of fully alicyclic polyimides derived from an alicyclic dianhydride and diamines. A silylation method for the alicyclic diamines was used to synthesize high molecular weight alicyclic polyimides. Triblock copolyimides were prepared using N-silylated alicyclic diamines, alicyclic dianhydride, and a thermally labile polymer. Nanoporous films of fully alicyclic polyimides were prepared through heating of the copolyimide films to induce thermal degradation of the labile block.
Effects of elevation on shoulder joint motion: comparison of dynamic and static conditions
Takaki Imai,Takashi Nagamatsu,Junichi Kawakami,Masaki Karasuyama,Nobuya Harada,Yu Kudo,Kazuya Madokoro 대한견주관절의학회 2023 대한견주관절의학회지 Vol.26 No.2
Background: Although visual examination and palpation are used to assess shoulder motion in clinical practice, there is no consensus on shoulder motion under dynamic and static conditions. This study aimed to compare shoulder joint motion under dynamic and static conditions. Methods: The dominant arm of 14 healthy adult males was investigated. Electromagnetic sensors attached to the scapular, thorax, and humerus were used to measure three-dimensional shoulder joint motion under dynamic and static elevation conditions and compare scapular upward rotation and glenohumeral joint elevation in different elevation planes and angles. Results: At 120° of elevation in the scapular and coronal planes, the scapular upward rotation angle was higher in the static condition and the glenohumeral joint elevation angle was higher in the dynamic condition (P<0.05). In scapular plane and coronal plane elevation 90°–120°, the angular change in scapular upward rotation was higher in the static condition and the angular change in scapulohumeral joint elevation was higher in the dynamic condition (P<0.05). No differences were found in shoulder joint motion in the sagittal plane elevation between the dynamic and static conditions. No interaction effects were found between elevation condition and elevation angle in all elevation planes. Conclusions: Differences in shoulder joint motion should be noted when assessing shoulder joint motion in different dynamic and static conditions.
Masaki Karasuyama,Masafumi Gotoh,Keiji Tahara,Junichi Kawakami,Kazuya Madokoro,Takashi Nagamatsu,Takaki Imai,Nobuya Harada,Yu Kudo,Naoto Shiba 대한견주관절학회 2020 대한견주관절의학회지 Vol.23 No.2
Background: Several systematic reviews have reported on the conservative treatment of full-thickness rotator cuff tears; however, clinical results of this treatment still remain determined. Methods: PubMed, Cochrane Library, PEDro, and CINAHL databases were systematically searched for randomized clinical trials and observational studies. Two independent researchers reviewed a total of 2,981 articles, 28 of which met the criteria for inclusion in the study. Clinical outcome measures included Constant score, visual analog scale score for pain, range of motion, and short-form 36. The meta-analysis used a linear mixed model weighted with the variance of the estimate. Results: The meta-analysis showed a significant improvement after surgery. Pain score is 26.2 mm (1 month) to 26.4 mm (3 months) and 24.8 mm (12 months) (P