29 research outputs found

    Flux flow and pinning of the vortex sheet structure in a two-component superconductor

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    A simulation study using the time-dependent Ginzburg-Landau theory is performed for the vortex state in two-component superconductors, such as PrOs_4_Sb_12_. We investigate the flux flow and the pinning of the vortex sheet structure. We find domain wall that traps half flux-quantum vortices and moves with the flux flow. In the pinning case, we observe an emitting process of a conventional vortex from the vortex sheet by combining a pair of half flux-quantum vortices.Comment: 4 pages, 4 figures, to appear in Phys. Rev.

    Magnetization process in a chiral p-wave superconductor with multi-domains

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    A simulation study for the magnetization process is performed for the multi-domain state in a chiral p-wave superconductor, using the time-dependent Ginzburg-Landau theory. The external field penetrates inside as core-less vortices through the domain wall, forming the vortex sheet structure. We find that, with increasing magnetic fields, the domain walls move so that the unstable domains shrink to vanish. Therefore, the single domain structure is realized at higher fields

    Diffuse alveolar hemorrhage with chronic thyroiditis in an advanced-age adult

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    AbstractIdiopathic pulmonary hemosiderosis (IPH) is one of the rare causes of diffuse alveolar hemorrhage (DAH), and usually occurs in children. The mechanism underlying this disease development has not been defined. During the acute phase, death due to massive alveolar hemorrhage and subsequent severe respiratory failure with multiple organ failure often occurs. We report a case of IPH which occurred in an advanced-aged adult during following thyroidectomy for chronic thyroiditis. Following surgery this 83-year-old male developed acute onset dyspnea and pulmonary hemorrhage. In a search for underlying causes, no disorders were found and the only finding was the presence of anti-thyroid antibody. Systemic corticosteroid therapy was effective and he fully recovered. To our knowledge, this is the second documentation of IPH in association with chronic thyroiditis

    Severe Interstitial Pneumonia Induced by Paclitaxel in a Patient with Adenocarcinoma of the Lung

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    A 71-year-old Japanese man with adenocarcinoma of the lung developed interstitial pneumonia after treatment with paclitaxel. The patient had acute chills and fever on the fourth day after the second exposure to paclitaxel, rapidly got worse despite empiric therapies, and developed prolonged respiratory failure requiring mechanical ventilation. Four months later, he died of respiratory failure due to progression of both interstitial pneumonia and lung cancer. This is the first case developing fatal paclitaxel-induced pulmonary toxicity to date. Interstitial pneumonia should be considered one of the possible life-threatening complications during treatment with paclitaxel

    Harada\u27s Disease (Vogt-Koyanagi-Harada Syndrome; VKH Syndrome)

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    We studied the course and outcome of 44 patients with Harada\u27s disease (17 males and 27 females) who were treated in the Department of Ophthalmology of Kawasaki Hospital, an affiliated hospital of Kawasaki Medical School, between April 1980 and March 1990. The age at onset ranged from 14 to 77 years with the mean age±SD being 46.5 ± 15.6 years. Thus the disease was frequent among the elderly. The posterior and optic types of the disease were most frequently found in our patients. As extraocular symptoms, perceptive deafness and an increase in the cell count of the cerebrospinal fluid were frequently observed, and these were important factors in the diagnosis of the disease. Systemic administration of steroids was the main treatment, with immunosuppressive agents being administereted to patiens with the delayed type of the disease. As for the visual prognosis, the final corrected visual acuity was 1.0 in 79% of the patients. As eye complications, cataracts and glaucoma were frequently noted, and various other lesions of the fundus were also observed with increasing age. Patients with the delayed type of the disease accounted for 34.1% of the patients studied

    Glucose Metabolism in Cataractous Lens

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    Since the sorbitol pathway in the lens of a diabetic rat was discovered, the relation between cataract formation and aldose reductase has been studied. We measured glucose, sorbitol and fructose in the human cataractous lens by the gaschromatography. Additionally, we measured sugar and polyols in bovine, pig and rabbit lens. The ratio of sorbitol/glucose is high in rabbit, pig and bovine lens in order. In the human cataractous lens, glucose is increased in accordance with development of cataract. On the other hand, sorbitol content is high in the diabetic lens and low in the senile cataractous lens. The aldose reductase inhibitor may have beneficial effects in the prevention of diabetic cataract formation, but have not the therapeutic effect in the senile cataract
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