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Decomposition of Al2TiO5-MgTi2O5 solid solutions: a thermodynamic approach
The decomposition of Al1−xMgxTi1+xO5 solid solutions with x=0.0, 0.1, 0.2, 0.4, 0.5 and 0.6 was studied in the temperature range 900–1175 °C using a 250 h annealing test. As x increases from 0–0.2 there is a stro...
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Article
Low-temperature aqueous synthesis (LTAS) of ceramic powders with perovskite structure
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Article
The effect of MgAl2O4 on the formation kinetics of Al2TiO5 from Al2O3 and TiO2 fine powders
The formation of Al2(1−x)MgxTi(1+x)O5 solid solutions from Al2O3-TiO2-MgAl2O4 powder mixtures of ≈1 μm particle size and moderate purity has been studied at 1300°C for different final composition values: x=0 (“pu...
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Article
Redundancy of autocrine loops in human rhabdomyosarcoma cells: induction of differentiation by suramin
Three human rhabdomyosarcoma cell lines were used to investigate the presence of autocrine loops based on the production of insulin-like growth factor (IGF)-II, basic fibroblast growth factor (bFGF) and epider...
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Article
Decreased adhesion to endothelial cells and matrix proteins of H-2Kb gene transfected tumour cells
Transfection of murine metastatic B78H1 cells (derived from B16 melanoma) with a syngeneic H-2Kb gene was used to study the effect of Major Histocompatibility Complex (MHC) gene products on tumour cell adhesio...
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Article
Uncoupling of growth inhibition and differentiation in dexamethasone-treated human rhabdomyosarcoma cells
The effects of dexamethasone, a synthetic glucocorticoid, and of N,N-dimethylformamide on in vitro growth and differentiation and on proto-oncogene expression of human rhabdomyosarcoma cells were studied. RD/1...
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Various Cytokines (IL-2, IL-4, IFN-gamma) Show Different Efficiency in Inducing Tumor Rejection
The non immunogenic mammary adenocarcinoma TS/A was transfected with the murine IL-2, IL-4, IFN-gamma genes. 3 clones releasing high levels of IL-2 or IL-4 or IFN-gamma were isolated. The ability of transfecta...
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Article
Control of H-2 expression in transformed nonhaemopoietic cells by autocrine interferon
The relationship between autocrine interferon (IFN) production and the expression of class I Major Histocompatibility Complex (MHC) membrane glycoproteins in vitro was investigated in a panel of murine transfo...
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Article
Induction of myogenic differentiation in human rhabdomyosarcoma cells by ionising radiation, N,N-dimethylformamide and their combination
Differentiation-inducing ability of gamma-radiation, N,N-dimethylformamide and their combination has been tested on human rhabdomyosarcoma RMZ-RC2 clone cells. Ionising radiation at 2-5 Gy doses induced a more...
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Article
In vitro differentiation of rhabdomyosarcomas induced by nickel or by Moloney murine sarcoma virus
In vitro cultures and clonal derivatives have been established from rat rhabdomyosarcomas induced by Moloney-Murine Sarcoma Virus (MSV) or by nickel sulfide; differentiation ability has been studied as express...
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Article
Enhancement of experimental metastatic ability by tumor necrosis factor-alpha alone or in combination with interferon-gamma
The effects of recombinant tumor necrosis factor-alpha (TNF-alpha) and interferon-gamma (IFN-gamma) on B16 mouse melanoma experimental metastatic ability and major histocompatibility complex (H-2b) antigens expre...
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Article
Erratum: The transition from internal oxidation to continuous film formation during oxidation of dilute Ni-Si alloys
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Article
Late abstracts 186–187
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Article
The transition from internal oxidation to continuous-film formation during oxidation of dilute Ni-Si alloys
The oxidation of Ni-2.05Si and Ni-4.45Si was studied in oxygen over the range of 600°–1000°C for 18 hr. The oxidation kinetics did not follow a parabolic rate law, bur rather a power law of the form (Δw)n=kt was ...
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Article
RMZ: A new cell line from a human alveolar rhabdomyosarcoma. In vitro expression of embryonic myosin
The RMZ cell line was established from a bone marrow metastasis of a human alveolar rhabdomyosarcoma. Since the beginning of the in vitro culture, RMZ cells showed differentiation-related morphological heterogene...
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Article
Colony-stimulating activity from the new metastatic TS/A cell line and its high- and low-metastatic clonal derivatives
We investigated the presence of colony-stimulating factor (CSF) in supernatants obtained from TS/A, a new metastatic murine cell line, and from its high-and low-metastatic clonal derivatives (E and F clones, r...
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Article
The corrosion of nickel in 1 atm of pure SO2 at 600–1000°C and the mechanism of formation of the two-layered scales
The reaction of pure nickel with 1 atm SO2 at 600–1000°C follows an irregular type of kinetics, tending to become parabolic at the highest temperature. The reaction rate tends to decrease with an increase of temp...
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Article
Inverse relationship between anti-SV40 TASA and anti-H-2 cytotoxic responses
The in vitro cytotoxic response against H-2 d and H-2 b SV40-transformed fibroblasts was studied in a 40-h 3H-proline assay. A very low response against SV40 TASA is associated with the H-2d antigens on target ce...
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Article
Oxidation of two-phase Co-54.86 wt.% Cu alloy at 700–1000°C
The oxidation in 1 atm of pure oxygen of a binary two-phase Co-Cu alloy has been studied as a simple example of the oxidation behavior of a multiphase alloy. The two-phase alloy oxidizes according to a parabol...
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Article
Minor histocompatibility antigens do not enhance BALB/c anti-SV40 TASA response