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  • 1
    Electronic Resource
    Electronic Resource
    Optical and structural properties of ZnCdSe/ZnSSe/ZnMgSSe separate confinement heterostructures (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 80 (1996), S. 5951-5954 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We have grown ZnCdSe/ZnSSe/ZnMgSSe separate confinement heterostructures by molecular-beam epitaxy. Strain on the ZnSSe layer is calculated from x-ray and photoluminescence data. The temperature dependence of band-gap energy and the photoluminescence intensity in the Cl-doped ZnCdSe active layers is compared with that of undoped ones. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.363590
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  • 2
    Electronic Resource
    Electronic Resource
    Magnetic properties of FeSi-SiO2 granular films : The 6th joint magnetism and magnetic materials (MMM)-intermag conference (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 76 (1994), S. 6490-6492 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The ferromagnetic resonance (FMR) spectra and coercivities of FeSi-SiO2 granular films have been measured over a wide range of FeSi volume fractions (fv). The films were prepared using the ion-beam sputtering technique and transmission electron microscopy showed that the FeSi alloy granules are embedded in a matrix of SiO2. An enhanced coercivity (Hc), as high as 329 Oe at room temperature, is observed. For some samples, there are several resonance peaks in the FMR spectra, which include one major peak and several minor peaks. The major and minor peaks correspond to the usual uniform mode and spin-wave respectively. In our experiments, the field separations between the major and the minor peaks show a complex fashion. Our results are discussed in comparison with some theoretical models.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.358235
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  • 3
    Electronic Resource
    Electronic Resource
    Magnetooptical Kerr effect in Fe-SiO2 granular films (1995)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 78 (1995), S. 439-441 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Polar Kerr rotation spectra of Fe-SiO2 granular films were measured at room temperature in the wavelength region between 400 nm and 850 nm. A maximum Kerr rotation angle (θk) of 18 min was obtained when a magnetic field of 10 kOe was applied perpendicular to the film plane. We have measured θk as a function of Fe volume fraction (fv) of the films. It was found that θk increases with increasing fv and peaks at fv≈0.4. We also found that θk decreases as the Fe particle size increases. Our results indicate that the density of Fe particles and the interfaces between Fe particles and SiO2 matrix may play an important role in the Kerr rotation of granular films. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.360623
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  • 4
    Electronic Resource
    Electronic Resource
    Ultradense phosphorous delta layers grown into silicon from PH3 molecular precursors (2002)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 80 (2002), S. 1580-1582 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Phosphorous δ-doping layers were fabricated in silicon by PH3 deposition at room temperature, followed by low-temperature Si epitaxy. Scanning tunneling microscope images indicate large H coverage, and regions of c(2×2) structure. Hall data imply full carrier activation with mobility 〈40 cm2/V s when the surface coverage is (approximately-less-than)0.2 ML. Conductivity measurements show a ln(T) behavior at low temperatures, characteristic of a high-density two-dimensional conductor. Possible future applications to atom-scale electronics and quantum computation are briefly discussed. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1456949
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  • 5
    Electronic Resource
    Electronic Resource
    Erratum: "Ultradense phosphorous delta layers grown into silicon from PH3 molecular precursors" [Appl. Phys. Lett. 80, 1580 (2002)] (2002)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 80 (2002), S. 3231-3231 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1476066
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  • 6
    Electronic Resource
    Electronic Resource
    Inactivity of μ-Calpain Throughout Postmortem Aging of Meat (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 67 (2002), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : In order to determine the involvement of μ-calpain in the tenderization of meat during postmortem aging, μ-calpain was prepared from porcine skeletal muscle and its activity was measured under various conditions, using casein and myofibrils as the substrate. μ-Calpain was inactive at pH 5.89 and below 15 °C. Even when the reaction time was extended to 10 h, it was entirely inactive at pH 5.62 and 5 °C. In the early postmortem stage, when the pH value of muscle is above 6.0, μ-calpain was considered to be inactive due to the low concentration of sarcoplasmic calcium ions. μ-Calpain is, therefore, irrelevant to the tenderization of meat throughout postmortem aging.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2002.tb10651.x
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  • 7
    Electronic Resource
    Electronic Resource
    Platelet-Derived Growth Factor-AA Increases IL-1β and IL-8 Expression and Activates NF-κB in Rheumatoid Fibroblast-Like Synoviocytes (2004)
    Oxford, UK; Malden, USA : Blackwell Science Ltd
    Scandinavian journal of immunology 60 (2004), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The effect of platelet-derived growth factor (PDGF)-AA on the inflammation in rheumatoid arthritis (RA) and osteoarthritis (OA) was investigated using cultured fibroblast-like synoviocytes (FLS) obtained from RA and OA patients as well as control nonarthritic (NA) individuals. PDGF-AA increased the mRNA and protein expressions of proinflammatory cytokines, interleukin (IL)-1β and IL-8 in RA FLS. Biological activity of IL-1 in the culture supernatant of RA FLS was also increased by PDGF-AA stimulation. Interestingly, PDGF-AA synergized with tumour necrosis factor (TNF)-α to upregulate the protein expressions of IL-1β and IL-8. PDGF-induced enhancement of the IL-1β and IL-8 mRNA expressions was also observed in OA FLS. However, the expression of these proinflammatory cytokines in NA FLS did not change by PDGF treatment, suggesting that the inflammatory condition might have modified the biological effects of PDGF. In accordance with the enhanced expression of inflammatory cytokines, the activity of nuclear factor κB was also induced in response to PDGF-AA in RA FLS. These results suggest that PDGF-AA plays an important role in the progression of RA inflammation, and inhibiting PDGF activity may be useful for the effective RA treatment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.0300-9475.2004.01505.x
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  • 8
    Electronic Resource
    Electronic Resource
    Molecular cloning of the outJ gene involved in pectate lyase secretion by Erwinia chrysanthemi (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Molecular microbiology 3 (1989), S. 0 
    Details
    ISSN: 1365-2958
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The phytopathogenic enterobacterium Erwinia chrysanthemi secretes a number of enzymes involved in plant-tissue degradation, notably the five isoenzymes of pectate lyase. We have cloned a region involved in pectate lyase and cellulase secretion by complementation of non-secretory outJ mutants of E. chrysanthemi strain 3937 using the RP4::miniMu plasmid pULB110. The cloned region maps near the ade-22 marker on the E. chrysanthemi 3937 chromosome. An R-prime containing a chromosomal DNA insert of about 30 kb was first obtained; subcloning into pBR325 permitted the isolation of a 4 kb Cial/Sspl fragment able to complement outJ mutations in E. chrysanthemi. The isolation of phoA fusions in this fragment allowed us to determine the direction of transcription of the encoding region, which extends over about 2.5 kb, and demonstrate that this region encodes exported protein(s). When the TnphoA insertions were transferred back into E. chrysanthemi chromosome, the recombined strains no longer secreted pectate lyases or cellulases. Identification of the products encoded by the Cial/Sspl fragment demonstrated that oufJ encodes an 83 kD polypeptide which is processed to an 81 kD polypeptide by cleavage of a signal sequence. The cloned DNA fragment did not endow Escherichia coli with the ability to secrete pectate lyases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2958.1989.tb00173.x
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  • 9
    Electronic Resource
    Electronic Resource
    Expression of vascular endothelial growth factor in salivary gland carcinomas and its relation to p53, Ki-67 and prognosis (2003)
    Oxford, UK : Munksgaard International Publishers
    Journal of oral pathology & medicine 32 (2003), S. 0 
    Details
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background:  Vascular endothelial growth factor (VEGF) has been demonstrated to play an important role in tumor angiogenesis and to influence prognosis in many cancers. But, its significance in salivary gland carcinomas has not been elucidated. The authors investigated the association between VEGF expression and clinicopathological factors, p53, and Ki-67 to verify its validity as a prognostic factor.Methods:  Surgical specimens from 45 patients with salivary gland carcinoma were examined for VEGF, p53, and Ki-67 expression by immunohistochemical staining. The results were compared with the clinicopathological factors and the relationships were correlated.Results:  VEGF expression was low in 14 cases, moderate in 15 cases, and high in 16 cases. It was significantly correlated with a variety of clinicopathological factors such as TNM stage, perineural and vascular invasion, and recurrence. VEGF showed significant association with the expression of p53 but not with that of Ki-67. Univariate analysis showed that age, gender, lymph node metastasis, vascular invasion, p53, Ki-67, and VEGF expression correlate with prognosis. Multivariate analysis demonstrated that VEGF is an independent prognostic factor for patients with salivary gland carcinomas.Conclusions:  The results of this study suggest that VEGF expression is correlated with p53 expression and that it may have prognostic value in salivary gland carcinomas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1600-0714.2003.00073.x-i1
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  • 10
    Electronic Resource
    Electronic Resource
    Protein sulfhydryls are protected from irreversible oxidation by conversion to mixed disulfides
    Amsterdam : Elsevier
    Archives of Biochemistry and Biophysics 295 (1992), S. 369-378 
    Details
    ISSN: 0003-9861
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0003-9861(92)90530-A
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