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21.
提从语言哲学角度考察哈汉两种不同民族语言文化对哈萨克族儿童语言的影响是拓展民族语言文化研究的一个重要视角。该文主要从语言与存在和语言与思维两个方面探讨民族语言。探索哈汉两种不同民族语言和文化特征,可以达到对中国哈汉两个民族存在特征的认识;探测语言文化与哈汉两个民族的思维习惯方式的关系,可以考查中国哈汉两个民族语言文化思维形式的发展状况对哈萨克族儿童的影响。 相似文献
22.
On dendritic cell-based therapy for cancers 总被引:3,自引:0,他引:3
Dendritic cells (DCs), the most prevalent antigen-presenting cell in vivo, had been widely characterized in the last three decades. DCs are present in almost all tissues of the body and play cardinal roles in recognition of microbial agents,autoantigens, allergens and alloantigen. DCs process the microbial agents or their antigens and migrate to lymphoid tissues to present the antigenic peptide to lymphocytes. This leads to activation of antigen-specific lymphocytes. Initially, it was assumed that DCs are principally involved in the induction and maintenance of adaptive immune responses, but now it is evident that DCs also have important roles in innate immunity. These features make DCs very good candidates for therapy against various pathological conditions including malignancies. Initially, DC-based therapy was used in animal models of cancers. Data from these studies inspired considerable optimism and DC-based therapies was started in human cancers 8 years ago. In general,DC-based therapy has been found to be safe in patients with cancers, although few controlled trials have been conducted in this regard. Because the fundamentals principles of human cancers and animal models of cancers are different, the therapeutic efficacy of the ongoing regime of DC-based therapy in cancer patients is not satisfactory. In this review, we covered the various aspects that should be considered for developing better regime of DC-based therapy for human cancers. 相似文献
23.
Akbar Zada Bakht Zada Jinde Cao Tongxing Li 《Journal of The Franklin Institute》2017,354(14):6247-6257
Let {Πτ(m, n): m?≥?n?≥?0} be the family of periodic discrete transition matrices generated by bounded valued square matrices Λτ(n), where is an arbitrary switching signal. We prove that the family {Πτ(m, n): m?≥?n?≥?0} of bounded linear operator is uniformly exponentially stable if and only if the sequence is bounded. 相似文献
24.
The endurance time (ET) method is a time history based dynamic analysis in which structures are subjected to gradually intensifying
excitations and their performances are judged based on their responses at various excitation levels. Using this method, the
computational effort required for estimating probable seismic demand parameters can be reduced by an order of magnitude. Calculation
of the maximum displacement or target displacement is a basic requirement for estimating performance based on structural design.
The purpose of this paper is to compare the results of the nonlinear ET method with the nonlinear static pushover (NSP) method
of FEMA 356 by evaluating performances and target displacements of steel frames. This study will lead to a deeper insight
into the capabilities and limitations of the ET method. The results are further compared with those of the standard nonlinear
response history analysis. We conclude that results from the ET analysis are in proper agreement with those from standard
procedures. 相似文献