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Cancer Registration in the Peoples Republic of China
Wei, Kuang-Rong,Chen, Wan-Qing,Zhang, Si-Wei,Liang, Zhi-Heng,Zheng, Rong-Shou,Ou, Zhi-Xiong Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.8
The current situation of cancer registration in China was systematically reviewed. So far, cancer registration in China has been making a great progress in the following aspects: the number of cancer registries and covered population have increased dramatically; a registration network has been established and completed gradually; regulations and rules improved remarkably; more attention is being paid by every level of government; a lot of registration software has been created and financial support ensured. However, we are still facing some problems and challenges, such as no stable groups of registrars, shortage of training opportunities, poor data quality, insufficient utilization and lack of multidisciplinary mechanisms, so that the cancer registration system still needs to be enhanced and improved. Along with the development of economy, science and information technology, methods and patterns of cancer registration is changing. It is to be expected that cancer registration will be automatic, nationwide and integrated with community healthcare in the near future.
Oridonin Suppresses Proliferation of Human Ovarian Cancer Cells via Blockage of mTOR Signaling
Xia, Rong,Chen, Sun-Xiao,Qin, Qin,Chen, Yan,Zhang, Wei-Wei,Zhu, Rong-Rong,Deng, An-Mei Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.2
Oridonin, an ent-kaurane diterpenoid compound isolated from the traditional Chinese herb Rabdosia rubescens, has shown various pharmacological and physiological effects such as anti-tumor, anti-bacterial, and anti-inflammatory properties. However, the effect of oridonin on human ovarian cancer cell lines has not been determined. In this study, we demonstrated that oridonin inhibited ovarian cancer cell proliferation, migration and invasion in a dose-dependent manner. Furthermore, we showed oridonin inhibited tumor growth of ovarian cancer cells (SKOV3) in vivo. We then assessed mechanisms and found that oridonin specifically abrogated the phosphorylation/activation of mTOR signaling. In summary, our results indicate that oridonin is a potential inhibitor of ovarian cancer by blocking the mTOR signaling pathway.
Region Stability Analysis for Switched Nonlinear Systems with Multiple Equilibria
Rong-Wei Guo,Yuzhen Wang 제어·로봇·시스템학회 2017 International Journal of Control, Automation, and Vol.15 No.2
This paper investigates the region stability analysis for switched nonlinear systems whose subsystemshave different equilibria, which are referred to multi-equilibrium switched nonlinear systems, and proposes a numberof new results on the region stability analysis. Through investigating the dynamical behavior of the multiequilibriumswitched system, two methods are established, based on which several new results are then obtainedfor the region stability. It is shown that the main results obtained in this paper not only guarantee the region stabilityof the multi-equilibrium switched nonlinear system under arbitrary switching, but also provide several newapproaches to determine the corresponding regions of convergence. Moreover, an improved average dwell time(ADT) method is proposed for the stability of switched nonlinear systems whose subsystems do not share a commonLyapunov function. Finally, an illustrative example with numerical simulation is studied by using the obtainedresults. The study of example shows that our results work very well in analyzing the region stability of somemulti-equilibrium switched nonlinear systems.
Anti-HIV-1 Activity of Lignans from the Fruits of Schisandra rubriflora
Wei-Lie Xiao,Rui-Rui Wang,Wei Zhao,Ren-Rong Tian,Shan-Zhai Shang,Liu-Meng Yang,Jian-Hong Yang,Jian-Xin Pu,Yong-Tang Zheng,Han-Dong Sun 대한약학회 2010 Archives of Pharmacal Research Vol.33 No.5
This study investigated the 70% aqueous acetone extract of the fruits of Schisandra rubriflora which led to the isolation of eight lignans, including a new isolate, rubrisandrin C (1), and seven known lignans (2-8) . The structure of 1 was established by extensive 1D and 2D NMR spectroscopy and its absolute stereochemistry was determined by CD spectrum. Compounds 1-5 and 7-8 were evaluated for their anti-HIV-1 activity that showed inhibitory activity on HIV-1IIIB induced syncytium formation with EC50 values in the range of 2.26~20.4 μg/mL. Compounds 1 and 7 exerted their obvious protection of HIV-1IIIB inducted MT-4 host cells lytic effects with a selectivity index of 15.4 and 24.6, respectively.
Wei Gu,Yong Liu,Li-Rong Wei,Bing-Kun Dong 보안공학연구지원센터 2015 International Journal of Grid and Distributed Comp Vol.8 No.3
This paper presents a hybrid algorithm for traveling salesman problem. The algorithm is a combination of the genetic algorithm and simulated annealing algorithm; in other words, it is a hybrid algorithm. The combination overcomes the deficiencies of the two algorithms when acting separately. The real distance between customers has been used on the basis of geographical information system (GIS) in order to make the result more suitable in real-life. The algorithm has tested on the examples of international standards. We made a comparison with the result of second nearest neighbor algorithm and genetic optimization algorithm. The test showed that the algorithm proposed in this paper has improved the results.