High Resolution Microwave Spectra of Pyridine-N-oxideanda-Picoline-N-oxide

The rotational spectra of pyridine-N-oxide and x-picoline-N-oxide ( = 2-methvlpyridine-N-oxide) have been observed by means of pulsed microwave spectroscopy. For both molecules, the 14N quadrupole coupling constants have been obtained. For α-picoline-N-oxide. in addition the parameters of the internal rotation motion and the centrifugal distortion constants have been determined.

[A case of giant sebaceous gland carcinoma without adequate treatment]

BACKGROUND

A patient with a sebaceous gland carcinoma without adequate treatment is reported.

CASE

A 67-year-old man underwent an operation on his left upper eyelid after a diagnosis of chalazion in 1981. Two years after the initial operation, he noticed a tumor in the left upper eyelid. In 1987, he visited another hospital and was diagnosed with sebaceous gland carcinoma by a tissue biopsy. He left it untreated against medical advice. When he visited our hospital in 1996, the tumor was as large as 80 x 75 x 40 mm and the left upper and lower eyelids stuck together. After admission, he died of myocardial infarction 23 days after his visit to our hospital. Autopsy revealed that the tumor had extended into the orbital cavity, paranasal sinus, and base of the skull, with metastasis to the preauricular, submandibular, and cervical lymph nodes and both lungs. The pathology of the tumor was a moderately differentiated sebaceous gland carcinoma.

CONCLUSION

This case showed the natural course of extension and metastasis of a sebaceous gland carcinoma.

[Visual exploration and cognitive articulation of the compound figures in children]

Visual articulation of compound figures is more fragmentary in children whereas it is more integrated in adults. In this experiment, eye movement of children during visual exploration of test figures was recorded under the hypothesis that the fragmentary articulation should be related to the same fragmentary character of the eye movement. The subjects were 20 children of 4-, 5- and 6-years old and the eye movement was recorded by a video monitor system accompanied by an EOG. The cognitive articulation was analyzed by a picture drawing task of the same figures and compared with the patterns of the eye movement. As the results, the children of fragmentary articulation in drawing also showed more partial-successive and inefficient explorative movement than those children of integrated articulation. The hypothesis was confirmed.