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  • 1
    Electronic Resource
    Electronic Resource
    Determination of local order in the amorphous precursor to Ba-hexaferrite thin-film recording media : The 40th annual conference on magnetism and magnetic materials (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 79 (1996), S. 4890-4892 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Ba-hexaferrite thin films for recording media applications are often fabricated by a two-step process: sputter deposition of an amorphous precursor, followed by annealing to crystallize the BaFe12O19 phase. The magnetic anisotropy of the crystalline films can be either in-plane or perpendicular, depending on the sputtering process used in the first step. However, conventional structural characterization techniques have not been able to distinguish between different as-sputtered films. Using polarization-dependent extended x-ray absorption fine structure (PD-EXAFS), we have observed anisotropic local structure around both Ba and Fe atoms in the amorphous precursor films. Comparison of the results suggests that the amorphous films consist of networks of Fe atoms surrounded by their O nearest neighbors, with Ba atoms fitting into in-between spaces as network modifiers (there might also be some minor Fe network modifying contribution). The local structural anisotropy of the amorphous films appears to determine the orientation of the fast-growing basal plane directions during annealing, and thus the directions of the c axes and the magnetic anisotropy. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.361641
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  • 2
    Electronic Resource
    Electronic Resource
    Magnetic studies of Ce4+ compensated Co-doped yttrium iron garnet thin film grown by chemical vapor deposition (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 79 (1996), S. 953-956 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A low pressure metalo-organic chemical vapor deposition (LPMOCVD) technique to form Co2+ and Ce4+ doped yttrium iron garnet (Y3−xCexFe5−xCoxO12: Co,Ce:YIG) films is described. A large concentration of Co2+ doping with x=0.3–0.7 results in uniaxial anisotropy perpendicular to the plane of the film with high coercivity values and sufficiently high saturation magnetization values. This has been possible by an alternate doping scheme where commonly used compensator, Ge4+ at Fe3+ sites has been replaced by a new compensator Ce4+ at Y3+ sites in the Co-doped YIG films. The structural and compositional aspect of stabilized garnet phase in Co2+,Ce4+:YIG thin films and optical, thermomagnetic and magnetic hysteresis properties are presented. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.360877
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  • 3
    Electronic Resource
    Electronic Resource
    Reduced-temperature crystallization of thin amorphous Fe80B20 films studied via empirical modeling of extended x-ray absorption fine structure (1996)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 68 (1996), S. 2073-2075 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The evolution of the local atomic environment around Fe atoms in very thin (15 nm), amorphous, partially crystallized and fully crystallized films of Fe80B20 was studied using extended x-ray absorption fine structure (EXAFS) measurements. The relative atomic fraction of each crystalline phase present in the annealed samples was extracted from the Fe EXAFS data by a least-squares fitting procedure, using data collected from t-Fe3B, t-Fe2B, and α-Fe standards. The type and relative fraction of the crystallization products follows the trends previously measured in Fe80B20 melt-spun ribbons, except for the fact that crystallization temperatures are ≈200 K lower than those measured in bulk equivalents. This greatly reduced crystallization temperature may arise from the dominant role of surface nucleation sites in the crystallization of very thin amorphous films. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.116307
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  • 4
    Electronic Resource
    Electronic Resource
    Glycoric Acid, a New Degraded Carotenoid from Glycosmis arborea (1996)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 52 (1996), S. 3216-3217 
    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/S0108270196010475
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  • 5
    Electronic Resource
    Electronic Resource
    Tropinyl 2-Isopropylbenzo[b]thiophene-3-carboxylate, C20H25NO2S (1995)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 51 (1995), S. 2386-2388 
    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/S0108270195004872
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  • 6
    Electronic Resource
    Electronic Resource
    Water chemistry and control of weathering of Pichola Lake, Udaipur District, Rajasthan, India (1996)
    Springer
    Environmental geology 27 (1996), S. 184-190 
    Details
    ISSN: 1432-0495
    Keywords: Silicate weathering ; Anthropogenic activity ; Domestic sewage ; Semiarid conditions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The water chemistry of Pichola lake revealed that it is dominated by Na and HCO3. The lake water chemistry strongly reflects the dominance of continental weathering aided by anthropogenic activity, such as tourist influx, developmental activities in the catchment area, and disposal of untreated municipal and domestic sewage into the lake basin. The supply of major ions is mainly through weathering of the silicate rock exposed in the drainage basin and the contribution from saline and alkaline soils/groundwater because of the semiarid conditions of the region. The increase in phosphate loading and consequent depletion of silica suggests biological consumption of the latter. The observed chemical data of Pichola lake was used to predict the mineral assemblages in the carbonate and aluminosilicate system. It demonstrates that calcite and dolomite are the possible minerals that are in equilibrium with the lake water system and that the lake water chemistry is in the range of stability of kaolinite.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00770431
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  • 7
    Electronic Resource
    Electronic Resource
    Sediment and heavy metal accumulation in the Cauvery basin (1996)
    Springer
    Environmental geology 27 (1996), S. 155-163 
    Details
    ISSN: 1432-0495
    Keywords: Radiometric dates ; Heavy metals ; Anthropogenic input ; Cauvery basin ; Remobilization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Eleven cores were collected from the Cauvery basin. Radiometric dates were used to determine modern sediment accumulation rates. Sediment accumulation rates ranged from 0.4 to 4 mm yr−. Heavy metal concentration decreases with the increase of depth. The heavy metal concentrations at certain depths are attributed to the irregular input of metals and their remobilization. Heavy metal accumulations have been computed using sediment accumulation rates, and accumulation rates show an additional anthropogenic input of metals and sediments in the recent past. Factor analysis and correlation analysis show the diverse source and accumulation mechanism influencing the metal distribution in the basin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00770427
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  • 8
    Electronic Resource
    Electronic Resource
    Peritoneopleural communication associated with cirrhotic ascites: scintigraphic demonstration (1996)
    Springer
    Abdominal imaging 21 (1996), S. 69-70 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Cirrhosis〈+〉—〈+〉Ascites〈+〉—〈+〉Pleural effusion〈+〉—〈+〉Communication〈+〉—〈+〉Radionuclides.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Demonstration of peritoneopleural communication in patients with cirrhotic ascites has an important impact on treatment planning. We studied 12 such patients and found presence of peritoneopleural communication in five. Two had bilateral, one right-side and two left-side, pleural effusion. Pleural fluid protein content was less than 2 g/dL in all patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900014
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  • 9
    Electronic Resource
    Electronic Resource
    Lightly cemented sand in tension and compression (1995)
    Springer
    Geotechnical and geological engineering 13 (1995), S. 169-177 
    Details
    ISSN: 1573-1529
    Keywords: Lightly cemented sand ; stress-strain relationship ; tensile strength ; unconfined compressive strength
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Summary Laboratory test results for the stress-strain relationships for lightly cemented sand specimens are presented. The tests were conducted with the specimens under compression and tension without any confining pressure. The cement content was varied from 4% to 8%. Based on the test results, the variations of the stress and strain ratios at failure with cement content are presented for specimens under compression and tension.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00456716
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  • 10
    Electronic Resource
    Electronic Resource
    Absence of human papillomavirus DNA in breast cancer as revealed by polymerase chain reaction (1996)
    Springer
    Breast cancer research and treatment 39 (1996), S. 197-202 
    Details
    ISSN: 1573-7217
    Keywords: breast cancer ; fine needle aspirate cell ; human papillomavirus ; PCR ; Southern blot hybridization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Oncogenic human papillomavirus (HPV) types 16 and 18 commonly associated with cervical cancer are found in many epithelial malignancies at extra-genital sites including breast. The transforming gene products of HPV have also been shown to immortalize breast epithelial cellsin vitro. But the findings of HPV DNA in breast carcinoma are found to be contradictory. In the present study fine needle aspirate cell (FNAC) samples from 26 breast cancer patients and four breast tumour biopsies were analysed for the presence of HPV 16 and 18 DNA sequences by both polymerase chain reaction (PCR) and Southern blot hybridization. Of 26 fine needle aspi rate cell samples and four breast cancer biopsies, not a single sample was found to be positive by either PCR or Southern blot hybridization. The observation of complete absence of HPV DNA sequences in breast cancer refute the possibility of any role for oncogenic genital HPV types 16 and 18 in the pathogenesis of breast cancer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01806186
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