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진원배,이충섭 東亞大學校 1979 東亞論叢 Vol.16 No.2
Anisotropy of the conduction electron g-factors of β-orbit in In were measured by the spin-splitting zero and harmonic ratio method with the de Haas-Van Alphen effect. g-factors were derived from the measurement of the effective mass and Dingle temperature. The first spin-splitting zero was happened at 79°from 〔110〕toward 〔001〕, where the effective mass was 0.595Me. The measured g-factors showed a large anisotropy from 1.68 to 3.21 over the β-orbit.
소아의 두뇌 손상후 속발된 공뇌증(Porencephaly) 2례
변박장,문충배,이인수 順川鄕病院 1976 順天鄕醫報 Vol.1 No.2
Case 1 is a boy of 5 7-ears, sustained craniocerebral injury and the emergency operation revealed subdural hematoma of ca 100 cc in the left frontal region with diffuse cerebral contusion, the hematoma was removed, and the craniectomy remained a skull defect of ca 7 cm in diameter on the left frontal region. The patient had been in a coma vigil state for two months there-after. When cranioplasty was made 7 months later, we found a large porencephaly in the left frontoparietal region which communicated broardly with the underlying left lateral ventricle. Case 2 is a boy of 3 months, sustained craniocerebral injury to make a linear fracture on the left parietal region and subdural hematoma of ca 60 co on the right frontoparietal region with diffuse cerebra1 contusion. The emergency operation was done to remove the hematoma, and left a skull defect of ca 4 cm in diameter on the right frontoparietal region. There-after the patient had remained in chronic coma like state and the skull had not grown any more. The head circumference had been in 41 cm till the age of 1 year and 5 months. Craniosrnostosis had occurred. At age of 11 months, in 8 months after the emergency operation we had performed the second operation to correct the craniosynostosis, while we found a large porencephaly in the right frontoparietal region which communicated broardly with the underlying right lateral ventricle. And also we ascertained that the development of the brain was ceased to make the secondary microcephaly with the craniosynos tosis. These two children gave rise to the large porencephaly in the frontoparietal area of one cerebral hemisphere as the later complication of the craniocerebral injury like a congenital porencephalic cyst.