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  • 1
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    Preliminary report of "Arctic Airborne" Measurement Program 2002" (AAMP 02) (2003)
    In:  EPIC3Polar Meteorology and Glaciology, 17, pp. 103-115
    Details
    Publication Date: 2017-10-20
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
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    PAPER (OA)
  • 2
    Electronic Resource
    Electronic Resource
    Synthetic reactions using organotin and sulfur compounds. 3. Regioselective desulfonylation of allylic sulfones with organotin hydride involving double migration of the double bond (1979)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 101 (1979), S. 5414-5415 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00512a051
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Stability problem of Kirkwood Gaps (1978)
    [s.l.] : Nature Publishing Group
    Nature 275 (1978), S. 568-568 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] KIANG noticed1 the importance of the Kirkwood Gaps (particularly the Hecuba Gap) in contrast to Hilda Group in the asteroidal distribution problem, and presented a solution to this problem using a stability criterion inherited in Hill's equation which, he assumed, clarifies the difference between ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/275568b0
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    A strong source of methyl chloride to the atmosphere from tropical coastal land (2000)
    [s.l.] : Macmillian Magazines Ltd.
    Nature 403 (2000), S. 295-298 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Methyl chloride (CH3Cl), the most abundant halocarbon in the atmosphere, has received much attention as a natural source of chlorine atoms in the stratosphere. The annual global flux of CH3 Cl has been estimated to be around 3.5 Tg on the grounds that this ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/35002049
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  • 5
    Electronic Resource
    Electronic Resource
    Detection of IgE insulin antibody with radioallergosorbent test (1978)
    Springer
    Diabetologia 14 (1978), S. 33-38 
    Details
    ISSN: 1432-0428
    Keywords: IgE insulin antibody ; insulin allergy ; radioallergosorbent test ; highly purified insulin ; IgE ; monocomponent insulin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary An in vitro method for detecting IgE insulin antibody using the principle of the radioallergosorbent test (RAST) is described. In six patients with insulin allergy, the RAST values were higher than in normal persons or insulin-treated diabetics without insulin-allergy. No differences were observed between normal persons and insulin-treated diabetics without insulin-allergy. Moreover, it was observed that in one patient treated with highlypurified insulin, there was a gradual decrease of RAST value parallel to the radioinsulin binding activity and clinical allergic symptoms. The RAST value of insulin is slightly inhibited by non-IgE antibodies and is, therefore, a semiquantitative value. However, the RAST is simple to perform and reproducible; It therefore is very useful in the detection of IgE insulin antibodies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00429705
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  • 6
    Electronic Resource
    Electronic Resource
    Simultaneous display of MRA and MPR in detecting vascular compression for trigeminal neuralgia or hemifacial spasm: comparison with oblique sagittal views of MRI (2000)
    Springer
    European radiology 10 (2000), S. 1056-1060 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Magnetic resonance angiography – Oblique sagittal views – Trigeminal neuralgia – Hemifacial spasm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. A new technique, simultaneous display of magnetic resonance angiography (MRA) and multiplanar reconstruction (MPR), was performed by a workstation to identify the involved vessels in patients with trigeminal neuralgia (TN) or hemifacial spasm (HFS), and the results were compared with those of oblique sagittal MRI technique. Twelve patients with either HFS or TN were prospectively assessed by simultaneous display of MRA and MPR, and oblique sagittal techniques, to point out the neurovascular compression and to identify the involved vessels. Three-dimensional (3D) time-of-flight (TOF) spoiled gradient-echo (SPGR) images were acquired to create MRA and MPR. Oblique sagittal views were also created and displayed on films. A total of 15 vessels in 12 patients were identified as compressing vessels during surgery. Simultaneous display of MRA and MPR technique pointed out the presence of vessels at and/or around root entry/exit zone (REZ) in all 12 patients, but proper identification by the name of the individual vessel was correct in 13 of 15 cases. However, oblique sagittal technique indicated the presence of vessels at and/or around REZ in 11 patients, but only 8 of 14 vessels were correctly identified. Our new method, simultaneous display of MRA-MPR, facilitated correct identification of the involved vessels compared with the oblique sagittal view method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003309900291
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  • 7
    Electronic Resource
    Electronic Resource
    Time-resolved two-dimensional thick-slice magnetic resonance digital subtraction angiography in assessing brain tumors (2000)
    Springer
    European radiology 10 (2000), S. 736-744 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Magnetic resonance angiography ; Digital subtraction angiography ; Two-dimensional Brain tumor ; Gadolinium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The aim of this study was to evaluate clinical applicability of two-dimensional (2D) thick-slice, contrast-enhanced magnetic resonance digital subtraction angiography (MRDSA) with high temporal resolution in diagnosis of brain tumors. Forty-four patients with brain tumors including, 15 meningiomas, 8 gliomas, 6 metastatic tumors, 4 neuromas, and 2 hemangioblastomas, were studied with 2D MRDSA with frame rate approximately 1 s. Images were continuously obtained following the initiation of bolus injection of gadolinium chelates for 40 s and subtraction images were generated in a workstation. We evaluated visualization of normal cranial vessels on MRDSA and compared MRDSA and intra-arterial digital subtraction angiography (IADSA) with regard to hemodynamic information. Large cerebral arteries, all venous sinuses, and most tributaries were clearly visualized. A stain was present in hypervascular tumors including all 15 meningiomas and 2 hemangioblastomas on MRDSA. Presence of a stain demonstrated on MRDSA and that on IADSA coincided in 16 of 20 cases (Spearman rank correlation value was 0.85). The location, shape, and phase of the stain on MRDSA were similar to those on IADSA. Two-dimensional MRDSA with high temporal resolution has a unique ability to demonstrate cerebral hemodynamics, such as IADSA, and can play an important role in assessing brain tumors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050996
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  • 8
    Electronic Resource
    Electronic Resource
    Two-dimensional thick-slice MR digital subtraction angiography for assessment of cerebrovascular occlusive diseases (2000)
    Springer
    European radiology 10 (2000), S. 1858-1864 
    Details
    ISSN: 1432-1084
    Keywords: Key words: MR imaging – Contrast material – MR angiography – Cerebrovascular disease – Brain
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Although spatial resolution of current MR angiography is excellent, temporal resolution has remained unsatisfactory. We evaluated clinical applicability of 2D thick-slice, contrast-enhanced subtraction MR angiography (2D-MR digital subtraction angiography) with sub-second temporal resolution in cerebrovascular occlusive diseases. Twenty-five patients with cerebrovascular occlusive diseases (8 moyamoya diseases, 10 proximal internal carotid occlusions, and 2 sinus thromboses ) were studied with a 1.5-T MR unit. The MR digital subtraction angiography (MRDSA) was performed per 0.97 s continuously just after a bolus injection of 15 ml of gadolinium chelates up to 40 s in sagittal (covering hemisphere) or coronal planes. Subtraction images were generated at a workstation. We evaluated imaging quality and hemodynamic information of MRDSA in comparison with those of routine MR imaging, non-contrast MR angiography, and X-ray intra-arterial DSA. Major cerebral arteries, all of the venous sinuses, and most tributaries were clearly visualized with 2D MRDSA. Also, pure arterial phases were obtained in all cases. The MRDSA technique demonstrated prolonged circulation in sinus thromboses, distal patent lumen of proximal occlusion, and some collateral circulation. Such hemodynamic information was comparable to that of intra-arterial DSA. Two-dimensional thick-slice MRDSA with high temporal resolution has a unique ability to demonstrate cerebral hemodynamics equivalent to that of intra-arterial DSA and may play an important role for evaluation of cerebrovascular occlusive diseases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300000584
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  • 9
    Electronic Resource
    Electronic Resource
    An autopsy case of hepatitis B (HB) antigen-positive polyarteritis nodosa, with reference to immunopathological studies of vascular lesions (2000)
    Springer
    Modern rheumatology 10 (2000), S. 267-271 
    Details
    ISSN: 1439-7609
    Keywords: Key words Hepatitis B antigen ; Immune complex ; Polyarteritis nodosa
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract An autopsy case of an 11-year-old boy with polyarteritis nodosa is described in which the onset of the disease was associated with the presence of hepatitis B (HB) antigens (Ag) in the cytoplasm and nuclei of hepatocytes as detected by immunohistological methods. Deposits of HBsAg, HBeAg, IgG, IgM, C3, and C1q were demonstrated in systemic vascular lesions. It is considered that the arteritis was due to deposition in the arteries of immune complexes formed by HBAg and HB antibodies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s101650070015
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  • 10
    Electronic Resource
    Electronic Resource
    Dimensional measurement of high aspect ratio micro structures with a resonating micro cantilever probe (2000)
    Springer
    Microsystem technologies 6 (2000), S. 179-183 
    Details
    ISSN: 1432-1858
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Technology
    Notes: Abstract  In non-destructive dimensional measurement of high aspect ratio micro structures (HARMS), optical methods cannot offer full three dimensional information due to the lack of observation light. Again, conventional mechanical measurement, such as a surface profiler or a coordinate measurement machine, cannot be applied because their stylus is too large. Furthermore, the AFM, though popular among the semiconductor industry, is also limited in terms of dimensional measurement, because its system is usually designed for planar samples. Thus, we have developed a new sensor-integrated micro resonating cantilever probe and a new dimensional measurement machine, which allows the probe's vertical access to microstructures in a sample. The new probe is made of tungsten carbide super hard alloy and possesses design flexibility according to its intended application. Validity of the system is confirmed through the measurement experiment of EDM drilled and chemically etched micro holes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s005429900037
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