This paper establishes the existence of positive entire solutions to some systems of semilinear elliptic systems including those related to the Lane-Emden and stationary Schrödinger systems. The ...primary technique for generating these results employs a degree theoretic approach for the classical shooting method.
In this paper, the author establishes the existence of positive entire solutions to a general class of semilinear poly-harmonic systems, which includes equations and systems of the weighted ...Hardy–Littlewood–Sobolev type. The novel method used implements the classical shooting method enhanced by topological degree theory. The key steps of the method are to first construct a target map which aims the shooting method and the non-degeneracy conditions guarantee the continuity of this map. With the continuity of the target map, a topological argument is used to show the existence of zeros of the target map. The existence of zeros of the map along with a non-existence theorem for the corresponding Navier boundary value problem imply the existence of positive solutions for the class of poly-harmonic systems.
The aim of this study was to consider the influence of “Medical Research on Kyudo”, which was conducted by surgeons in Tokyo Provisional First Army Hospital from 1939 to 1941, and which subsequently ...lead to the dissolution of Kyudoyosoku. This research also looks to clarify the sequence of events during that period from historical records, research contents, and the reaction of archers after the publication of “Medical Research on Kyudo”. The results can be summarized as follows:1) Kyudo was adopted at the Tokyo Provisional First Army Hospital in 1939 as part of a rehabilitation program for disabled veterans with the aim of not only restoring military spirit, but also improving body posture.2) Following the adoption of kyudo, Tokyo Provisional First Army Hospital began the “Medical Research on Kyudo” project to select the most suitable kyudo forms to aid rehabilitation. Impact on the lungs and spinal cord were examined by radiographing the chest of the archers while performing the techniques of chukan-uchiokoshi and shomen-uchiokoshi. The research concluded that skeletal deformity and chest muscle distortion could occur with the chukan-uchiokoshi style. Moreover, the research assumed that incorrect lung position could trigger the risk of pleural inflammation and several diseases with chukan-uchiokoshi, but not with shomen-uchiokoshi.3) The results of the research study were widely publicized in kyudo and budo magazines, medical academic papers, newspapers and presentations not only for the kyudo archers, but also for the general public. This widespread dissemination of information also lead to the criticism of Kyudoyosoku from outside the kyudo field. This intensified pressure on the Greater Japan Martial Virtues Association, which had adopted chukan-uchiokoshi in Kyudoyosoku, to announce a strong statement denying the research on August 22, 1941.4) In our research, we could not confirm any other cases where the Greater Japan Martial Virtues Association got into such a situation as this to give a statement against criticism of kyudo’s essential rule. Therefore, it is conceivable that “Medical Research on Kyudo” gave validity or medical justification to criticize Kyudoyosoku. Taken together, the overall criticism from kyudo archers, budo martial artists, doctors, and society in general, and specifically the results from the “Medical Research on Kyudo” that indicated harm to the human body, was one of the main factors that lead to the elimination of the kyudo rationale, or the dissolution of Kyudoyosoku.
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