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  • 1
    Electronic Resource
    Electronic Resource
    Understanding the Solvent-Induced Habit Modification of Benzophenone in Terms of Molecular Recognition at the Crystal/Solution Interface. (1994)
    s.l. : American Chemical Society
    Chemistry of materials 6 (1994), S. 1099-1102 
    Details
    ISSN: 1520-5002
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/cm00044a005
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  • 2
    Electronic Resource
    Electronic Resource
    Gadolinium-enhanced MRI of breast hamartoma (1995)
    Springer
    European radiology 5 (1995), S. 204-212 
    Details
    ISSN: 1432-1084
    Keywords: Breast MRI ; Breast neoplasm, benign ; Breast neoplasms, diagnosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Hamartoma of the breast is a relatively rare, well-circumscribed benign breast tumour that lacks a true capsule, and is composed primarily of dense, fibrous tissue with associated ducts and a variable amount of fat. A typical mammographic finding is a well-delineated, non-homogeneous mass containing mottled densities corresponding to fat, epithelium and connective tissue. Ultrasonographically, hamartoma has a well-circumscribed heterogeneous internal echo pattern corresponding to areas of fat and soft tissue components. This is the first original paper to describe the MRI findings of hamartomas. Mammography and ultrasonography usually enable a diagnosis of hamartoma; however, gadolinium-DTPA enhanced dynamic MRI is the only method in the preoperative management of atypical hamartomas that allows the exclusion of malignancy elsewhere in the breast and hamartoma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00171312
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  • 3
    Electronic Resource
    Electronic Resource
    Gadolinium-enhanced MRI of breast hamartoma (1995)
    Springer
    European radiology 5 (1995), S. 204-212 
    Details
    ISSN: 1432-1084
    Keywords: Breast MRI ; Breast neoplasm, benign ; Breast neoplasms, diagnosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Hamartoma of the breast is a relatively rare, well-circumscribed benign breast tumour that lacks a true capsule, and is composed primarily of dense, fibrous tissue with associated ducts and a variable amount of fat. A typical mammographic finding is a well-delineated, non-homogeneous mass containing mottled densities corresponding to fat, epithelium and connective tissue. Ultrasonographically, hamartoma has a well-circumscribed heterogeneous internal echo pattern corresponding to areas of fat and soft tissue components. This is the first original paper to describe the MRI findings of hamartomas. Mammography and ultrasonography usually enable a diagnosis of hamartoma; however, gadolinium-DTPA enhanced dynamic MRI is the only method in the preoperative management of atypical hamartomas that allows the exclusion of malignancy elsewhere in the breast and hamartoma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00957122
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Optical properties of undoped and co-doped CuGa"1"-"XAl"XSe"2 single crystals
    Amsterdam : Elsevier
    Journal of Physics and Chemistry of Solids 54 (1993), S. 1509-1513 
    Details
    ISSN: 0022-3697
    Keywords: Multinary compound CuGa"1"-"XAl"XSe"2 ; crystal-field ; optical absorption ; transition metal impurity
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0022-3697(93)90344-Q
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  • 5
    Electronic Resource
    Electronic Resource
    Studies on swine and canine serum haptoglobins
    Amsterdam : Elsevier
    BBA - Protein Structure 243 (1971), S. 126-136 
    Details
    ISSN: 0005-2795
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0005-2795(71)90046-8
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  • 6
    Electronic Resource
    Electronic Resource
    Effect of microstructure on the magnetoresistive properties of NiFe/Co(CoFe)/Al(Ta)–oxide/Co(CoFe) tunnel junctions (2001)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 89 (2001), S. 2752-2755 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The microstructure of the NiFe/Co(CoFe)/Al(Ta)-oxide/Co(CoFe) ferromagnetic tunnel junction was investigated using cross-sectional transmission electron microscopy (TEM). The effect of the insulating layer on the magnetoresistive (MR) properties of the junction was studied. The multilayer junction was formed using magnetron sputtering and the insulating layer was created by plasma oxidation of the deposited metal film. TEM analysis showed that the MR ratio was highly dependent on the insulating layer. For the NiFe/Co/Al-oxide/Co junction, when the Al2O3 layer was 13 Å, the oxide layer was flat and the highest MR ratio of 15% was attained. As the Al2O3 thickness increased, the interface roughness rapidly increased, and the MR ratio also markedly dropped. In contrast, NiFe/CoFe/Al-oxide/CoFe junction showed a comparatively flatter interface and recorded a higher MR ratio. The Ta-oxide insulating layer remained flat regardless of the thickness; however, the largest MR ratio of only 9% was obtained within a narrow thickness range. We have demonstrated that there exists a direct correlation between the microstructure of the oxide layer and the MR ratio of the junction, which could be utilized to optimize the electrical properties of the ferromagnetic tunneling junction. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1343519
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  • 7
    Electronic Resource
    Electronic Resource
    Failure of exchange-biased low resistance magnetic tunneling junctions upon thermal treatment (2002)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 91 (2002), S. 217-220 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Transmission electron microscopy (TEM) and Rutherford backscattering spectroscopy (RBS) were used to characterize low resistance (100–1000 Ω μm2) tunneling junctions consisting of Ta/NiFe/Cu/NiFe/IrMn/CoFe/Al (6.6 and 7.7 Å)–oxide/CoFe/NiFe/Ta multilayers after annealing at temperatures ranging from 250 to 500 °C. The Al (7.7 Å) junction showed continual improvement in the magnetoresistance (MR) ratio when annealed up to 300 °C while the MR ratio of the Al (6.6 Å) junction dropped sharply above 250 °C in spite of the only 1 Å difference in the deposited thickness of aluminum metal prior to plasma oxidation. TEM measurement provided evidence that the annealing process improves, in general, structural uniformity in the insulation layer, but thermal treatment can also degrade junction performance at a relatively low temperature due to current leakage through the electrodes. Current leakage can be problematic for a junction whose insulation barrier may be too thin (less than ∼10 Å). Both RBS and TEM analyses indicated that the maximum annealing temperature of exchange biased junctions lies between 400 and 500 °C above which the multilayer structure in the pinned electrode is destroyed by interdiffusion. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1420770
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  • 8
    Electronic Resource
    Electronic Resource
    Interdiffusion in antiferromagnetic/ferromagnetic exchange coupled NiFe/IrMn/CoFe multilayer (2002)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 91 (2002), S. 1431-1435 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Auger electron spectroscopy (AES) and Rutherford backscattering spectroscopy (RBS) analysis were carried out in order to study the extent of interdiffusion during thermal treatment of the pinned electrode (Ta/NiFe/Cu/NiFe/IrMn/CoFe) of the magnetic tunneling junction. From the concentration profile results from RBS and AES, a significant amount of Mn–CoFe interdiffusion was observed when the sample was annealed at 200 °C–400 °C under vacuum. The multilayer was completely intermixed at 400 °C, losing the exchange bias interaction between the IrMn and CoFe layers. It was demonstrated that the migration of Mn was enhanced by the preferential oxidation of Mn on the surface. In fact, when a thin layer of Ta for oxidation protection was deposited on top of the electrode, the Mn diffusion was minimal up to 300 °C. Our experiment suggests that in actual magnetic tunneling junctions, the Mn diffusion to the insulation layer could be enhanced by the presence of the free oxygen radicals in the insulation layer produced during the plasma oxidation of the Al layer. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1427400
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  • 9
    Electronic Resource
    Electronic Resource
    4-Methoxy-3-methyl-4'-nitrostilbene, C16H15NO3 (1994)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 50 (1994), S. 1768-1770 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270194000533
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  • 10
    Electronic Resource
    Electronic Resource
    Perirolandic hypoperfusion on single-photon emission computed tomography in term infants with perinatal asphyxia: comparison with MRI and clinical findings (2000)
    Springer
    Neuroradiology 42 (2000), S. 908-912 
    Details
    ISSN: 1432-1920
    Keywords: Key words Cerebral palsy ; Birth asphyxia ; Magnetic resonance imaging ; Single-photon emission computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We describe the findings on single-photon emission computed tomography (SPECT) in patients with perinatal asphyxia at term, with perirolandic cortico-subcortical changes on MRI, and to correlate them with clinical features. SPECT of 7 patients was obtained after injection of 185–370 MBq of Tc-99m-ECD (ethyl cysteinate dimer). The patients had spastic quadriplegia (7/7) with perinatal asphyxia (6/7) at term (7/7). The results were correlated with the MRI findings. Hypoperfusion of the perirolandic cortex was clearly seen on SPECT in all patients, even in two with subtle changes on MRI. SPECT demonstrated a more extensive area of involvement than MRI, notably in the cerebellum (in 4), the thalamus (in 7) and basal ganglia (in 5), where MRI failed to show any abnormalities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340000357
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