Experimental and numerical analysis of developer flow in a developing machine

Behaviors of developers flowing in a simplified developing machine was analyzed by evaluating torques of mixers in both experiments and numerical simulations in this research. In spherical and non-cohesive particles, the simulation result is in good agreement in the experimental result by adjusting the coefficient of friction. In nonspherical or cohesive particles, the simulation result can coincide with the experimental result by adjusting the coefficient of friction and Hamaker constant

A COMPARISON OF BASIC RHYTHM MOVEMENT KINEMATICS BETWEEN EXPERT AND NON-EXPERT HIP HOP DANCERS

Common motion characteristics that may be linked to higher judging evaluations of hip hop dance were investigated. A comparison of the rhythmic movement between ten expert and twelve non-expert dancers was undertaken. Trajectory data was captured using a motion capture system at 120 Hz and kinematic parameters including the time lags of occurrence of peak joint angle in neck, trunk, hip and knee joint were calculated. Smaller time lags between neck and other joints were observed in the expert dancers. Furthermore, the neck motion was delayed for approximately a quarter cycle of the basic rhythm compared with the half cycle delay observed in the non-expert group. Timing differences in the coordination of joint angles is the most likely a factor to explain the higher judging evaluations awarded to the expert dancers

CONTRIBUTION OF THE SUPPORT LEG TO ACCELERATE KICKING LEG SWING DURING SOCCER INSTEP KICKING

The present study aimed to determine the contribution of support leg motion to the acceleration of the kicking leg in soccer instep kicking. The kicking motion was recorded by a motion capture system. According to the procedures proposed in previous studies, the power due to the muscle and interaction moments acting on the kicking lower leg was computed. The forward swing of the lower leg during the final phase of kicking was dominated by the power of the interaction moment rather than by that of the muscle moment. The support leg motion contributed to produce more than 50 % of the total amount of positive work due to the power of the interaction moment. The present study proposed a reasonable mechanism for the acceleration of the lower leg swing when its angular velocity exceeds the inherent force-velocity limitation of muscles

Evaluation of the Influence of Non-face-to-face Teaching in Case Study Exercise Module : Education Outcome Evaluation using a Rubric for Comprehension of Clinical Laboratory Data

2020年，新型コロナウイルス感染症（COVID-19）拡大により，大学では対面授業に替わる新たな授業形態が必要となった。本学でも，臨床実習後に行う模擬症例演習科目で非対面授業を取り入れた。そこで本研究では，この非対面授業の教育成果を確認するため，従来の対面授業との比較を行った。臨床検査値に対する学生の理解度を指標とした考察の結果，非対面授業においても教育成果は得られていたものの，対面授業と比べると十分とは言えないことが示唆された。要因の一つとして，今回行った非対面授業はグループ討論を含まなかったため，学生間で知識や意見交換ができなかったことが考えられる。様々な授業形態が可能となった時代を迎え，今後も教育成果の評価とそれに基づく授業改善を継続して行い，それぞれの利点を活かした教育プログラムを開発していく必要がある。In 2020, the spread of the novel coronavirus (COVID-19) necessitated a new online teaching format to replace face-to-face university classes. We aimed to evaluate the educational outcomes of nonface-to-face classes in the case study exercise module conducted after clinical training at our university. We compared students who had non-face-to-face classes to those who previously had face-to-face classes. Comparisons using a rubric for students' comprehension of clinical laboratory data as an indicator revealed that a certain level of educational achievement was obtained by the non-face-to-face classes, but it was less than that of the group that attended face-to-face classes. We suggest one of the reasons for this is that students could not share knowledge and opinions with each other because the non-face-to-face classes did not include group discussions. As we enter an era in which various forms of classes have become possible, it is necessary to continue to evaluate educational outcomes and improve classes and develop educational programs that make the most of the advantages of each type of teaching

Shoulder pain in patients following lung resection

Aim and objective: The purpose of this study was to examine the frequency, influencing factors, and clinical course of shoulder pain in patients following lung resection. Background: Thoracoscopes have been introduced in the surgical treatment of lung cancer, and allow for less invasive surgery with a minimal incision. However, decubitus position-related shoulder pain on the operated side has not yet been investigated. Design: A longitudinal descriptive study. Methods: Patients who underwent lung resection in the decubitus position. Patients were interviewed 2 days before surgery and once daily for 5 days after surgery. Interview items included background data, the concomitant use of epidural anesthesia, operative duration, presence of preoperative shoulder stiffness (excluding shoulder pain), type of surgery, and site of operation. The intensity of pain was approximately 5 on an 11-point numerical rating scale. Descriptive statistics on patient backgrounds were obtained using SPSS Statistics 22 for Windows. Results: Of the 74 patients who underwent lung resection in a decubitus position, 30(40.5%) developed shoulder pain on the operated side. The highest rating occurred 1 day after surgery and decreased over time. The following two factors were found to influence shoulder pain on the operated side: operative duration(Z=-2·63;p=0·01), and presence of preoperative shoulder stiffness(excluding shoulder pain)(χ2＝4·16;p=0·04). Conclusions: This study demonstrated that approximately 40% of patients who underwent lung resection in the decubitus position developed shoulder pain. Relevance to clinical practice: The presence of postoperative shoulder pain was related to both the duration of the operation and to the presence of preoperative shoulder stiffness. Although the shoulder pain resolves within 4 days, it causes the patient additional discomfort and distress. Therefore, further research is needed on positioning for thoracotomy in order to investigate ways to reduce or eliminate this complication of lung surgery