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P Büchel

Publications and source records attributed to P Büchel.

4 recordsLinked to original sources
PubMed2004

Metastatic adenocarcinoma of the temporomandibular joint from the cardia of the stomach: a case report.

A case is presented of a 67-year-old man with adenocarcinoma of the gastric cardia that metastasised to the temporomandibular joint (TMJ). A carcinoma of the cardia metastatic to the TMJ has not previously been reported. The case is unusual in many respects. The condyle and disc were anteriorly displaced by the tumour, resulting in progressive mandibular deviation and crossbite. Radiographically, however, no destructive changes of the joint were observable. Tumour staging showed this lesion to be the only distant metastasis.

Adenocarcinoma↗
PubMed2000

Localized perturbations in binary fluid convection with and without throughflow.

Dynamics and structure of spatially localized convective perturbations in binary fluid layers heated from below and the effect of a plane horizontal Poiseuille throughflow on them are investigated. Fronts and pulse-like wave packets formed out of the three relevant perturbations-two oscillatory ones and a stationary one-are analyzed after evaluating the appropriate saddle points of the three respective dispersion relations of the linear field equations over the complex wave number plane. Front and pulse properties are elucidated in quantitative detail as a function of small throughflow Reynolds numbers for different Soret coupling strengths psi including the pure fluid limit psi=0 in comparison with the appropriate Ginzburg-Landau amplitude equation approximations. Furthermore, small amplitude pulses and fronts obtained from solving the full nonlinear field equations numerically are presented to check and compare with the linear results.

Journal Article↗