We have developed cat's head programming method which is very effective to create computer software, but has no clear methodology of dividing problems. We applied mind mapping to the cat's head programming method to divide the problem to simple tinny problems by associative imagination, which is prompted by mind mapping. In our applicatin of cat's head method with mind mapping, it turns out to be very effective. In this paper, we summarize the application of mind mapping to cat's head programming method.

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In order to establish the phosphorus recovering technique from charcoal of sewage sludge, studies on the alkali-extraction methods using sodium hydroxide are going way. Phosphorus is thought to exist as a form of aluminum phosphate in the sludge. Aluminum phosphate is expected to react with silicone components in the sludge in addition to the sodium compounds under hydrothermal condition, and form a zeolite like substances. Consequently, aluminum free phosphorus reacts with sodium compounds to form sodium phosphate, and can be easily extracted from them. Based on this idea, investigation of phosphorus recovery from carbonized sewage sludge was investigated. Carbonized sewage sludge was mixed with sodium hydroxide aqueous solution, and treated in hydrothermal conditions. After this treatment, phosphorus was successfully recovered from charcoal of sewage sludge. The phosphorus was considered sodium phosphate（Na₃PO₄）, and the recovering rate was estimated to be about 60%. The charcoal treated by this method has lower concentration of phosphorus, and can be more useful compared to a non-treated one because of its lower phosphorus concentration.

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A total 110 taxa, belonging to 37 genera were found from Omusaronuma-Lake, Okoppe-chyo of Hokkaido, Japan. The dominant species and subdominant species were Melosira nummuloides C. Agardh, Petroneis marina（Ralfs）D. G. Mann, and Diploneis ovalis（Hilse）Cleve found in the sediment.

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The incidence of chronic obstructive pulmonary disease（COPD）and bronchial asthma has begun increasing in early 1960s in the population of Yokkaichi-city（Mie Prefecture, Japan）. No new cases have been reported after 1988. The present study aimed at examining the sex differences in survival of Yokkaichi Asthma patients. It was observed that survival of female patients from Yokkaichi-city were significantly longer than malepatients.

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