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  • 1995-1999  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Uterus didelphys associated with obstructed hemivagina and ipsilateral renal agenesis: MR findings in seven cases (1998)
    Springer
    Abdominal imaging 23 (1998), S. 437-441 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Müllerian duct anomaly—Complications—MRI.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: Although a specific syndrome of the uterus didelphys, obstructive hemivagina, and ipsilateral renal agenesis had been reported in gynecologic literatures, it is not familiar to radiologists. We introduce this syndrome with radiological, especially MR findings. Methods: Imaging findings and medical records of seven patients with this syndrome were retrospectively reviewed. Results: MR clearly demonstrated uterus didelphys with obstructed hemivagina in six of the seven patients. A remaining one showed uterus didelphys with left-sided hematometra and hematosalpinx who had undergone vaginal septum incision prior to the MR. We could also recognize ipsilateral renal agenesis in all five patients, in whom renal areas were examined on MR. After vaginal septum resection, symptoms disappeared in six patients. We could observe the disappearance of the obstructive complications with MR in three patients. Conclusions: MR can do much for the early diagnosis and the prevention against further complications of this condition because it can demonstrate the müllerian duct anomaly complicated with obstructed hemivagina in detail and even ipsilateral renal agenesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900375
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Augmented railgun using a permanent magnet (1995)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 66 (1995), S. 4227-4232 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The use of a permanent magnet instead of an electromagnet has been proposed for the augmentation of the magnetic field of a railgun driven by a current of approximately 20 kA. A permanent magnet has the following advantages in comparison with conventional augmentations using additional turns: (1) simple configuration of the system, (2) temporally and spatially constant magnetic fields, and (3) high efficiency. Here, the operation of a conventional railgun and that of an augmented railgun using a permanent magnet are compared experimentally, and the usefulness of the permanent magnet is described. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1145374
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Metabolites of Arsenic Induced Tetraploids and Mitotic Arrest in Cultured Cells (1997)
    Springer
    Archives of environmental contamination and toxicology 32 (1997), S. 141-145 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract. The toxic effects of arsenic compounds on cell division were studied, using Chinese hamster V79 cells. Seven arsenic compounds were tested. Inorganic arsenic compounds (arsenite and arsenate), which have been found in drinking water, inhibited cell growth at very low concentrations. Monomethylarsonic acid (MMA), dimethylarsinic acid (DMA), and trimethylarsine oxide (TMAO), which are methylated metabolites of inorganic arsenics, were less cytotoxic than the inorganic arsenics themselves. The cytotoxicity of the three methylated metabolites decreased as the number of methyl groups increased. Arsenobetaine (AsBe) and arsenocholine (AsC), which have been found in some marine products, did not show any cytotoxicity. Three methylated metabolites; MMA, DMA and TMAO induced mitotic arrest. Tetraploidy production was observed in cells exposed to DMA or TMAO. Arsenite, arsenate, AsBe and AsC did not induce mitotic arrest or tetraploids. These results suggest that MMA, DMA and TMAO exert some effect on cell division in metaphase and may thereby give some clue as to the carcinogenic mechanism of arsenic.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002449900166
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    Paper (German National Licenses)
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