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In this paper the dependence of the magnetic properties of Fe-Ti-N thin films on partial nitrogen pressure ([P.sub.N2]/[P.sub.Total])during sputtering were studied. Fe-Ti-N thin films were prepared with a dc magnetton reactive sputtering apparatus, using a composite type of target in Ar and [N.sub.2] mixed gas. The crystal structure and magnetic properties of the films were investigated. A single [Alpha]-Fe (110) peak appeared at various partial nitrogen pressure ([P.sub.N2]/[P.sub.Total]). When [P.sub.N2]/[P.sub.Total] was increased, the width of [Alpha]-Fe (110) peak became broader. The [Alpha]-Fe (110) peak shifted to lower angle direction, and the maximum value of the lattice constant was about 2.93 [Angstrom] at [P.sub.N2]/[P.sub.Total] in the range of 2.5 [similar to] 5%. The value of coercivity (Hc) was 26 Oe, and the value of the saturation magnetization (Ms) was about 1400 emu/cc at [P.sub.N2]/[P.sub.Total] of 0%. The minimum value of Hc was 2.4 Oe at easy magnetization direction, and 1.35 Oe at hard magnetization direction at [P.sub.N2]/[P.sub.Total] of 2.5%. The Ms of films increased at [P.sub.N2]/[P.sub.Total] in the range of 2 [similar to] 5%. Soft magnetic properties were obtained at [P.sub.N2]/[P.sub.Total] of 2.5%.

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A 71-year-old male was diagnosed as having pyothorax-associated lymphoma (PAL), a rare hematological malignancy associated with artificial pneumothorax for the treatment of pulmonary tuberculosis. Because of the low incidence, its clinical features have not been fully clarified. The PAL lesion in this patient disappeared after local radiotherapy and corticosteroid treatment. However, 8 months after the initial diagnosis, he developed a variety of neurological disorders and low-grade fever. Neither recurrence of the primary pulmonary lesion nor nodal enlargement was observed. Immediate magnetic resonance imaging of the brain revealed a ring-enhanced mass, suggesting a brain abscess. However, through a stereotactic biopsy of the brain lesion, infiltration of PAL cells was identified. The brain lesion rapidly enlarged despite intensive radiotherapy, and he finally died of lymphoma progression. This case demonstrates that PAL may progress as a type of extranodal lymphoma, and that brain lesions may produce a ring-enhanced pattern on computed tomography. [ABSTRACT FROM AUTHOR]

Presents a case study that examined the false-positive results of Aspergillus enzyme-linked immunosorbent assay in a patient with chronic graft-versus -host disease after allogeneic bone marrow transplantation. Description on the patient; Findings of the case study.

Reports on the guidelines proposed by the French-American-British cooperative group for diagnosis of acute myeloid leukemia (AML-MO) to standardize the diagnostic criteria. Diagnosis of a patient with AML-MO; Characteristics of leukemic cells; Examination of bone marrow specimen.