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Cardiac inflammatory pseudotumor (IPT) is a rare disease and it is difficult to make a definitive diagnosis. A 77-year-old woman was admitted because of weight loss, fatigue and palpitation. Her medical history included ANCA associated systemic vasculitis and hepatitis-B. She had been taking oral

金沢大学附属病院設計製造技術研究所, 計算生体力学によって生み出された技術は,研究だけでなく臨床における診断や治療に応用可能な技術として,その可能性を広げている.整形外科の分野においても,計算力学と医療画像処理の融合により,個々の患者の症状を反映した患者別の骨体力学解析が実用化しつつある.例えば,X線CT画像から骨の有限要素モデルを作成して力学解析を行うソフトウェアが開発されている.これにより,従来は多くの日数が必要であった骨の有限要素モデルの作成が数時間で可能となった.ここでは,そのようなソフトウェアを利用して,骨粗鬆症脊椎の有限要素解析を患者別に行い,骨粗鬆症における脊椎圧迫骨折の危険性を評価する方法について解説する.

In the path-integral framework we study a massive Thirring-like model in 2-dimensional space-time, which contains fermions with arbitrary number (N) of different species. This model is an extension of that of a previous paper (the Bukhvostov-Lipatov model), where we have considered two-species case. By this extensron we expect that we can expose more general structures of this kind of model. We obtain the equivalent boson model with N species to our fermion model by mass perturbation expansion. We see that the boson Lagrangian corresponds with the one which is directly obtained from the original fermion Lagrangian by Coleman's correspondences of free fermion bilinear operators with boson fields.

金沢大学設計製造技術研究所

We study relativistic bound states of two kinds of the massive Dirac particles with a current-current interaction in 2-dimensional space-time. We have two types of the solutions; normal and abnormal solutions. The former solution shows that the binding energy of the particle-particle pair from the positron theory is smaller than that from the single electron theory.

We study a massive Thirring-like model in 2-dimensional space-time, which contains fermions with arbitrary number (N) of different species. This model is an extension of that of a previous paper, where we have considered two-species case. By this extension we expect that we can expose more general structures of this kind of model. We obtain the equivalent boson model with N species to our fermion model. We find that the coupling constant must be set in some regions in order for the model to be physically sensible. It seems hard to find such regions from direct obsavation of the original fermion model. We also find that for specific values of the coupling constant some of the boson fields disappear from the system. Therefore, the N-species fermion model is described by the boson model with fewer species., Comment: 8 pages, no figure, ptptex

金沢大学設計製造技術研究所

We have proposed stochastic quantization procedure in Minkowski space-time in previous papers. That formulation , however, was done with non-Gaussian white noises. In this article we show that the equivalent formulation is possible with Gaussian white noises. This will be useful for the application to numerical analysis though manifest covariance of the theory under Lorentz transformation is lost. The covariance is restored at the Green function level.

We construct a spherically symmetric and time dependent real solution to a classical SU(2) gauge theory. The coordinate transformations under which the differential equation remains invariant are discussed.

Stochastic quantization method is applied to U(1) gauge field. The stabilization of random trajectories of gauge-dependent quantities is discussed. It is shown that such a stabilization is possible by modifying the correlation of the white noise. As an example the propagator of the axial gauge condition is derived.

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