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Magnetization reversal and its propagation in sintered Nd-Fe-B magnets were clearly observed at elevated temperatures up to 150 °C using a Kerr microscope, image processing, and photo editing. Simultaneous magnetization reversal in several grains along the easy axis direction occurred at elevated temperature, and the extent of simultaneous magnetization reversal increased with temperature. This indicates that reduction in the coercivity of Nd-Fe-B sintered magnets at elevated temperatures is attributable to decrease in anisotropy and insufficient pinning of domain walls at grain boundaries. [ABSTRACT FROM AUTHOR]

We experienced two cases of atypical pneumonia accompanied with rhabdomyolysis and diagnosed them as psittacosis based on the results of investigation of paired serum samples. Rhabdomyolysis may be associated with some kinds of viral or bacterial infections, but no report was found in the case of psittacosis as far as we searched and such a description was not found in textbooks. Heretofore, the elevation of GOT and LDH as the laboratory findings in psittacosis was considered as the reflection of liver injury, but that might be brought about by rhabdomyolysis. Although the mechanism(s) of the occurrence of rhabdomyolysis in psittacosis is unknown, when the elevation of muscular origin-enzymes including CPK is recognized in cases of atypical pneumonia, it may be the clue of diagnosis of psittacosis.