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  • 1
    Electronic Resource
    Electronic Resource
    Overexpression of p53 protein in squamous cell carcinoma of buccal mucosa and tongue in Taiwan: an immunohistochemical and clinicopathological study (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 25 (1996), S. 0 
    Details
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Sixty squamous cell carcinomas of tongue and buccal mucosa were examined for expression of p53 protein by using an immunohistochemical technique improved by an antigen retrieval method. Twenty-seven (45%) tumors demonstrated strongly positive staining. Thirteen of p53-positive tumors (48%) also exhibited Overexpression of p53 in immediately adjoining hyperplastic or pre-malignant epithelium. All 22 metastatic lymph nodes and 18 local recurrent lesions (except two) had an identical p53 immunophenotype to their corresponding primary sites. Mitotic indices were significantly higher in p53-positive tumors (P 〈 0.01): however, no association of PCNA scores with p53 expression was found (P 〉 0.1). There was no correlation between p53 Overexpression and tumor grade, size and staging, vascular invasion, lymph node metastasis, and early local recurrence. Overexpression of p53 was found to be relatively higher, although not statistically significant, in nonsmokers than in heavy smokers (66.7% vs. 42.9%). and in non-betel-quid chewers than in heavy chewers (62.5% vs. 34.2%). These data are consistent with the hypothesis that inactivation of p53 protein may occur in the early phases of oral tumorigenesis. It may not be a useful prognostic marker but could possibly be used for risk assessment and surveillance of local recurrence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0714.1996.tb00192.x
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  • 2
    Electronic Resource
    Electronic Resource
    Immunohistochemical localization of bone morphogenetic protein (BMP) in calcifying fibrous epulis (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 22 (1993), S. 0 
    Details
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Immunohistochemical detection of bone morphogenetic protein (BMP) in calcifying fibrous epulis was performed to elucidate the biological process of ossification and cemento-ossification. In a total 25 cases, 15 (60%) showed positive BMP staining in bone forming areas. Histopathological features of developing hard tissues were varied, consisting of structures such as woven bone and cemento-osseous formations. BMP immunostaining was limited to osteoblasts and fibrous connective tissue surrounding the bone matrix. BMP was concentrated in the periodontal fibres and in dense fibrous structures in the cemento-osseous masses. On the basis of histopathological and immunohistochemical features, the histogenesis of ossifying and cemento-ossifying processes appear to be of two possible origins; the excessive proliferation of periodontal ligament and a meta-plastic process occurring in the connective tissue fibres (non-periodontal in origin), with the former being more common.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0714.1993.tb00131.x
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  • 3
    Electronic Resource
    Electronic Resource
    An immunohistochemical study of bone morphogenetic protein in pleomorphic adenoma of the salivary gland (1993)
    Springer
    Virchows Archiv 422 (1993), S. 439-443 
    Details
    ISSN: 1432-2307
    Keywords: Pleomorphic adenoma ; Bone morphogenetic protein ; Immunohistochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Bone morphogenetic protein (BMP) is a potent induction factor for new bone formation including heterotopic chondro-ossification in soft tissues. The immunohistochemical reaction for BMP was studied in 23 cases of pleomorphic adenoma of salivary gland by using a monoclonal antibody produced by hybridoma technique. Positive BMP immunoreactivity was seen in 87% of tumours. Immunohistochemical expression of BMP was observed in modified myoepithelial cells (88% cases), luminal tumour cells of tubulo-ductal structures (78% cases) and chondroid cells in hyaline tissue (22% cases). The authors concluded that the simultaneous presence of glycosaminoglycans as matrix substance and S-100 protein for calcium signalling are associated with BMP-mediated cellular activity of modified myoepithelial cells in the formation of chondroid structures in pleomorphic adenomas of the salivary glands.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01606451
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  • 4
    Electronic Resource
    Electronic Resource
    Stress Effects of Deep Centers in Si, New Method to Determine Old Parameter Ξ〈sub〉μ〈/sub〉 (1986)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 10-12 (Jan. 1986), p. 469-474 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/59/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.10-12.469.pdf
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  • 5
    Electronic Resource
    Electronic Resource
    Releasing Algorithm for Volumetric Locking in Metal Forming Process Simulation Based on Element-Free Galerkin Method (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 575-578 (Apr. 2008), p. 356-366 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The meshless methods effectively deal with large material distortion simulation. Based on therigid (visco)plastic material model, the element-free Galerkin method (EFGM) is introduced to simulate themetal forming processes. Aiming at the volume locking and pressure oscillation during EFGM analysis, avolumetric strain rate mapping method is proposed based on pressure projection method. The releasingalgorithm is established by modifying the volumetric strain rate in the functional equation. The volumetricstrain rate calculated according to velocity field is mapped onto a lower-order space to reduce the number ofindependent discrete constrain equations. The numerical example shows that the releasing algorithm caneffectively eliminate the volumetric locking and pressure oscillation without the expense of employing largesupport size in the rigid-plastic meshless method
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.575-578.356.pdf
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  • 6
    Electronic Resource
    Electronic Resource
    Process Optimization of Laser Micro-Bending Using iSIGHT (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 575-578 (Apr. 2008), p. 408-415 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: There are many factors, such as the laser and geometrical parameters, which influencegreatly on the laser bending process. So it is of great importance to determine these variablesproperly. Considering the relationship of material properties and temperature, a 3-Dthermal-mechanical finite element analysis model for laser micro-bending of stainless steel foil isdeveloped based on the software MSC.Marc, and the laser micro-bending process of 0.1mm thickstainless steel foil is implemented. The finite element method simulation process is integrated withthe optimization software package iSIGHT through secondary development. The objective functionis to realize the maximum bending angle after single laser scan, and laser power, beam diameter andscanning velocity are regarded as the design variables. The forming process is optimized by usinggenetic algorithm. The optimal result shows the bending angle can be got to the maximum1.0332°when the laser power, beam diameter and scanning velocity are 32W, 0.17mm and132mm/s respectively. The experiment results are in good agreement with optimal results
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.575-578.408.pdf
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  • 7
    Electronic Resource
    Electronic Resource
    On the crystal structure of S′ phase in Al-Cu-Mg alloy (1990)
    Springer
    Journal of materials science 9 (1990), S. 421-424 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00721018
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  • 8
    Electronic Resource
    Electronic Resource
    High-resolution electron microscopy on the morphology of S′- and S-phases in Al-Cu-Mg alloy (1991)
    Springer
    Journal of materials science 10 (1991), S. 591-593 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00724448
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  • 9
    Electronic Resource
    Electronic Resource
    Microstructure of SiCp-reinforced A356 cast Al metal-matrix composite (1993)
    Springer
    Journal of materials science 28 (1993), S. 6000-6006 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The microstructure of SiCp-reinforced A356 cast Al metal-matrix composite (MMC) has been investigated by means of transmission electron microscopy and energy-dispersive X-ray analysis. It is found that the MMC contains β-SiC, (β + γ2) SiC composite, eutectic Si, GP zones of Si sequence, a new J phase and the amorphous phase Al x Si9Ca2. The γ2-SiC is lathlike with a triclinic crystal structure having a=0.308 nm, b=0.305 nm, c=1.262 nm, α= 93.8 °, β = 90.0 °, and γ = 60.0 °. The J phase is bulk-like with a C-face-centred orthorhombic crystal structure having a = 0.680 nm, b = 1.170 nm and c = 0.826 nm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00365011
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  • 10
    Electronic Resource
    Electronic Resource
    Transmission electron microscopy on the microstructure of 7050 aluminium alloy in the T74 condition (1992)
    Springer
    Journal of materials science 27 (1992), S. 197-202 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The microstructure of 7050 aluminium alloy in the T74 condition has been investigated by transmission electron microscopy. It was found that the alloy contains the superlattice Al3Zr phase, η′ phase and Al7Cu2Fe constituent phase. The η′ phase is proposed to have an orthorhombic crystal structure witha=0.492 nm,b=0.852 nm andc=0.701 nm. The orientation relationship between the matrix and η′ phase is [11−2]m//[100]η′; [1−]m//[010]η′;[−1−1−1]m//[001]η′. The phases on the small-angle grain boundary are found to be mainly η′ phase and Cu/Si-rich phase, whereas on the large-angle grain boundary there is only η phase.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00553856
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