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Search Results: 1 - 10 of 5392 matches for " Zou Limin "
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Several Theorems for the Trace of Self-conjugate Quaternion Matrix
Qinglong Hu,Limin Zou
Modern Applied Science , 2009, DOI: 10.5539/mas.v2n5p21
Abstract: The purpose of this paper is to discuss the inequalities for the trace of self-conjugate quaternion matrix. We present the inequality for eigenvalues and trace of self-conjugate quaternion matrices. Based on the inequality above, we obtain several inequalities for the trace of quaternion positive definite matrix.
Some inequalities for unitarily invariant norms of matrices
Wang Shaoheng,Zou Limin,Jiang Youyi
Journal of Inequalities and Applications , 2011,
Abstract: This article aims to discuss inequalities involving unitarily invariant norms. We obtain a refinement of the inequality shown by Zhan. Meanwhile, we give an improvement of the inequality presented by Bhatia and Kittaneh for the Hilbert-Schmidt norm. Mathematical Subject Classification MSC (2010) 15A60; 47A30; 47B15
Correlation of SRSF1 and PRMT1 expression with clinical status of pediatric acute lymphoblastic leukemia
Zou Limin,Zhang Han,Du Chaohao,Liu Xiao
Journal of Hematology & Oncology , 2012, DOI: 10.1186/1756-8722-5-42
Abstract: Background Acute lymphoblastic leukemia (ALL) is the most frequently-occurring malignant neoplasm in children, but the pathogenesis of the disease remains unclear. In a microarray assay using samples from 100 children with ALL, SFRS1 was found to be up-regulated. Serine/arginine-rich splicing factor 1 (SRSF1, also termed SF2/ASF), encoded by the SFRS1 gene, had been shown to be a pro-oncoprotein. Our previous study indicated that SRSF1 can be methylated by protein arginine methyltransferase 1 (PRMT1) in vitro; however, the biological function of SRSF1 and PRMT1 in pediatric ALL are presently unknown. Methods Matched, newly diagnosed (ND), complete remission (CR) and relapse (RE) bone marrow samples from 57 patients were collected in order to evaluate the expression patterns of SRSF1 and PRMT1. The potential oncogenic mechanism of SRSF1 and PRMT1 in leukemogenesis was also investigated. Results We identified significant up-regulation of SRSF1 and PRMT1 in the ND samples. Importantly, the expression of SRSF1 and PRMT1 returned to normal levels after CR, but rebounded in the RE samples. Our observation that SRSF1 could predict disease relapse was of particular interest, although the expression patterns of SRSF1 and PRMT1 were independent of the cytogenetic subtypes. In pre-B-cell lines, both SRSF1 and PRMT1 expression could be efficiently attenuated by the clinical chemotherapy agents arabinoside cytosine (Ara-c) or vincristine (VCR). Moreover, SRSF1 and PRMT1 were associated with each other in leukemia cells in vivo. Knock-down of SRSF1 resulted in an increase in early apoptosis, which could be further induced by chemotherapeutics. Conclusions Our results indicate that SRSF1 serves as an anti-apoptotic factor and potentially contributes to leukemogenesis in pediatric ALL patients by cooperating with PRMT1.
Consent for Use of Clinical Leftover Biosample: A Survey among Chinese Patients and the General Public
Yi Ma, HuiLi Dai, LiMin Wang, LiJun Zhu, HanBing Zou, XianMing Kong
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0036050
Abstract: Background Storage of leftover biosamples generates rich biobanks for future studies, saving time and money and limiting physical impact to sample donors. Objective To investigate the attitudes of Chinese patients and the general public on providing consent for storage and use of leftover biosamples. Design, Setting and Participants Cross-sectional surveys were conducted among randomly selected patients admitted to a Shanghai city hospital (n = 648) and members of the general public (n = 492) from May 2010 to July 2010. Main Outcome Measures Face-to-face interviews collected respondents-report of their willingness to donate residual biosample, trust in medical institutions, motivation for donation, concerns of donated sample use, expectations for research results return, and so on. Results The response rate was 83.0%. Of the respondents, 89.1% stated that they completely understood or understood most of questions. Willingness to donate residual sample was stated by 64.7%, of which 16.7% desired the option to withdraw their donations anytime afterwards. Only 42.3% of respondents stated they “trust" or “strongly trust" medical institutions, the attitude of trusting or strongly trusting medical institutions were significantly associated with willingness to donate in the general public group.(p<0.05) The overall assent rate for future research without specific consents was also low (12.1%). Hepatitis B virus carriers were significantly less willing than non-carriers to donate biosamples (32.1% vs. 64.7%, p<0.001). Conclusions Low levels of public trust in medical institutions become serious obstacle for biosample donation and biobanking in China. Efforts to increase public understanding of human medical research and biosample usage and trust in the ethical purposes of biobanking are urgently needed. These efforts will be greatly advanced by the impending legislation on biobanking procedures and intent, and our results may help guide the structure of such law.
Chaos Control in a Discrete Ecological System  [PDF]
Limin Zhang, Chaofeng Zhang
International Journal of Modern Nonlinear Theory and Application (IJMNTA) , 2012, DOI: 10.4236/ijmnta.2012.13011
Abstract: In research [1], the authors investigate the dynamic behaviors of a discrete ecological system. The period-double bifurcations and chaos are found in the system. But no strategy is proposed to control the chaos. It is well known that chaos control is the first step of utilizing chaos. In this paper, a controller is designed to stabilize the chaotic orbits and enable them to be an ideal target one. After that, numerical simulations are presented to show the correctness of theoretical analysis.
Research into Liyuan Buildings, the Spatial Composition of Liyuan Blocks and Liyuan Residents’ Lifestyles in Qingdao, China  [PDF]
Limin Shao, Hiroyuki Kanekiyo
Art and Design Review (ADR) , 2013, DOI: 10.4236/adr.2013.12002
Abstract:

Qingdao lies in the south of Shandong Peninsula, on the coast of the Yellow Sea. As a coastal and hilly city, Qingdaohas topographic features consisting of twisted coastlines dotted with capes and bays. The beginning of the 20th century witnessed the construction of western-style streets and buildings in Qingdao when it was occupied by Germany. Liyuan is the name of the residential buildings for Chinese labors during the German occupation. Liyuan retain the spatial composition of Chinese quadrangles (Siheyuan), and at the same time feature western technology. Therefore they have both Chinese and western flavors. In addition, they are the earliest urban residential complexes in China. The space system of Liyuan blocks has played an important role in the lifestyle and social network of the local residents. Liyuans have been home to Qingdao people from generation to generation, which makes it a spiritual symbol. Owing to its history and characteristics, Liyuan architecture has been designated as one of the historical and cultural protected areas in Qingdao, and has contributed to the formation of a distinctive geographical landscape. Since the 1980s, urban renewal and redevelopment in Qingdao have greatly impacted upon the protection of Liyuans, which has aroused concern from various communities.This research on Liyuans shows the geographic location of all the Liyuan blocks, classifies them in terms of courtyard composition and architectural features, and analyzes the relationship between their spatial composition and the residents’ life-style.

Banana Peel Carbon that Containing Functional Groups Applied to the Selective Adsorption of Au(III) from Waste Printed Circuit Boards  [PDF]
Huajun Zheng, Limin Wang
Soft Nanoscience Letters (SNL) , 2013, DOI: 10.4236/snl.2013.32006
Abstract:  

This paper reports a kind of banana peel carbon (BPC) containing -OH, -NH2 functional groups which prepared through controlling carbonization temperature and its application on the selective adsorption of gold from waste printed circuit boards (PCBs). The adsorption of BPC for Au(III) reached equilibrium in 30 min and the adsorption of Au(III) was favorable at pH 2.5. Meanwhile, the adsorption isotherm showed the maximum adsorption capacity of 801.7 mg/g for Au(III). The results displayed that BPC had a strong selectivity for Au(III) and a negligible affinity to base metal ions, such as Cu(II), Ni(II), Fe(III) and Pb(II). The BPC adsorbent, which absorbed gold, can be recovered completely by HCl-thiourea solution.

Dynamics of a Hyperparasitic System with Prolonged Diapause for Host*  [PDF]
Limin Zhang, Chaofeng Zhang
International Journal of Modern Nonlinear Theory and Application (IJMNTA) , 2013, DOI: 10.4236/ijmnta.2013.24028
Abstract:

A hyperparasitic system with prolonged diapause for host is investigated. It is assumed that host prolonged diapause occur at larval stage, and parasitoid attack is limited to egg stage before the initiation of host diapause. Such behavior has been reported for many ichneumons. Hyperparasite only attacks the parasitoids that parasitize the hosts. Hyperparasitic system is often used in biological control. The existence and stability of nonnegative fixed points are explored. Numerical simulations are carried out to explore the global dynamics of the system, which demonstrate appropriate prolonged diapause rate and appropriate intrinsic growth rate can stabilize the system. The reasons are explained according to the ecological perspective. Furthermore, many other complexities which include quasi-periodicity, period-doubling bifurcations leading to chaos, chaotic attractor, intermittent and supertransients are observed.

Trichloroisocyanuric acid, a New and Efficient Catalyst for the Synthesis of 2′- Aminobenzothiazolo-arylmethyl-2-naphthols
Limin Yang
Journal of Chemistry , 2012, DOI: 10.1155/2012/707324
Abstract: An efficient one-pot synthesis of 2′-aminobenzothiazolo-arylmethyl-2-naphthols is described. This involves the three-component reaction of β-naphthol, aromatic aldehydes and 2-aminobenzothiazole in the presence of a catalytic amount of trichloroisocyanuric acid under solvent-free conditions.
Latest Progress of Research on Fault Diagnosis Based on Information Fusion
Limin Cheng
Information Technology Journal , 2008,
Abstract: As we know that information fusion technology can synthetically utilize all kinds of information and remarkably improve the correctness of diagnosis finally. In order to male information fusion technology play more roles in fault diagnosis field, therefore, some contents about the basic principle, methods and fusion architectures of fault diagnosis based on information fusion in many fields are discussed in this research. At last, a conclusion is reached that it is establishing a firm foundation for the further development of information fusion for fault diagnosis.
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