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81.
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我们非常感激你对儿音响产品的关心,并且希望它能成为你家庭音响和家庭影院中的一部分。
当我们进入家庭音响市场的时候,我们公司承诺会以性能和品质的最高标准来创造产品。我们相信你会从Fathom@或者Gofham中的每个细节中看到儿音响对品质的承诺,但最重要的是,我们相信你会在每次欣赏电影和享受音乐的时候都会感受得到。 相似文献
83.
TM Gerhardt GE Schmahl C Flotho AV Rath CM Niemeyer 《Canadian Metallurgical Quarterly》1997,99(4):882-887
Activation of the Evi-1 gene was first described to be associated with the transformation of murine myeloid leukaemias and has previously been detected in cases of human acute myeloid leukaemia (AML) and chronic myeloid leukaemia (CML) in blast crises and in myelodysplastic syndromes. In this study we determined the frequency and the level of Evi-1 expression in juvenile myelomonocytic leukaemia (JMML) and in normal haemopoiesis. Using RT-PCR and Southern blot hybridization mRNA of Evi-1 could be detected in bone marrow (BM) and peripheral blood (PB) mononuclear cells (MNC) of normal donors. In JMML 12/20 patients examined expressed elevated levels of Evi-1 compared to normal controls. In these samples over-expression of the gene was correlated with a higher percentage of blasts (P = 0.02). Expression levels in BFU-E and CFU-GM derived colonies from BM of JMML patients were lower than those in the corresponding MNC samples. Analysis of CD34+ and CD34- cells demonstrated that Evi-1 is primarily expressed in the CD34+ cell population of both JMML and normal donors. These findings suggest that Evi-1 expression is linked to the early stages of haemopoiesis. Studies on the regulation of Evi-1 expression in CD34+ cells will elucidate its function in progenitor cells and clarify its possible role in the pathogenesis of JMML. 相似文献
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A female adult barred owl (Strix varia) had been hurt by a car. Its general status declined gradually within 2 wk with anorexia and inactivity. Necropsy examination revealed marked multifocal pale areas in liver, emaciation, and mild airsacculitis and pericarditis. Histopathologic examination revealed severe acute multifocal hepatic necrosis with numerous protozoal tachyzoites within necrotic foci and in the cytoplasm of hepatocytes and macrophages. These tachyzoites stained with an indirect immunohistochemistry method for Toxoplasma gondii antigens. This is the first reported case of hepatitis resulting from toxoplasmosis in a raptor. 相似文献
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AV Feofanov VA Ole?nikov AB Tuzikov AI Ianul' EIu Kriukov NV Bovin IR Nabiev 《Canadian Metallurgical Quarterly》1997,23(11):910-918
Neoglycoconjugates based on polyacrylamide and sialic acid with N-acetylneuraminic acid or sialooligosaccharides as side chains were studied by surface-enhanced Raman scattering (SERS) spectroscopy. It had previously been found that these polymers can effectively inhibit influenza virus adhesion. This study revealed the possibility to evaluate, based on the intensity of SERS signals, the overall availability for interaction and the conformational freedom of sialic acid residues in glycoconjugates. The dependence of these two factors on the structure and density of sialylated side chains was studied. The uniformity of distribution of sialylated side chains in conjugates was shown. Comparison of the results of the SERS spectroscopic study of the conjugates and the data on their inhibitory effect on the adhesion of specific strains of influenza virus allowed the identification of the conjugates for which the availability and conformational freedom of sialic acid are the main factors determining their inhibitory properties. A conclusion was also reached about the predominance of one of the mechanisms (competitive inhibition or steric stabilization) in the inhibitory properties of the specific conjugates. 相似文献
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Mikaelian A.L. Abakumov D.M. Gulanian E.H. Ashurbekov N.A. Troshchanovich P.V. 《Proceedings of the IEEE. Institute of Electrical and Electronics Engineers》1999,87(11):1956-1961
The paper examines the issue of increasing the holographic storage density, of binary data transparencies. The approach is distinctive in that it allows for signal-to-noise ratio in reconstruction. It is shown that the use of Fourier holograms with optimized spatial spectrums allows the density to go beyond the value defined by the diffraction limit 相似文献
90.
AV Shabunin 《Canadian Metallurgical Quarterly》1997,156(6):77-79
Children during the first few years of their lives, presenting with lymphohypoplastic diathesis were studied for their blood serum content of sodium, potassium, chlorine. Relationship was found of the electrolyte balance to the processes of the lipid peroxidation, activity of the hormonal link of the antioxidant defence system. 相似文献