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Search Results: 1 - 10 of 6639 matches for " GONG Zuxun "
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Foreign gene transfer into Chinese shrimps (Penaeus chinensis) with gene gun
Zhiyi Liu,Jianhai Xiang,Guoying Zhou,Zuxun Gong
Chinese Science Bulletin , 2001, DOI: 10.1007/BF03187219
Abstract: Plasmids pG DNA-RZ1 with aGFP (green fluorescent protein) reporter gene and a ribozyme gene incising penaeid white spot baculovirus (WSBV) were first introduced into the fertilized eggs of Chinese shrimps by gene gun. The treated and control samples of different development stages were observed with a fluorescent microscope. The transient expression ofGFP gene was high in nauplius and zoea larvae. Results from RT-PCR and PCR for adults showed that the foreign genes had been transferred into the shrimps and had expressed the corresponding proteins. This work has established a transgenic method for penaeid shrimps, which will set base for the application of genetic engineering breeding into industry.
Foreign gene transfer into Chinese shrimps (Penaeus chinensis) with gene gun

LIU Zhiyi,XIANG Jianhai,ZHOU Guoying,GONG Zuxun,

科学通报(英文版) , 2001,
Abstract: Plasmids pG DNA-RZ1 with a GFP (green fluorescent protein) reporter gene and a ribozyme gene incising penaeid white spot baculovirus (WSBV) were first introduced into the fertilized eggs of Chinese shrimps by gene gun. The treated and control samples of different development stages were observed with a fluorescent microscope. The transient expression of GFP gene was high in nauplius and zoea larvae. Results from RT-PCR and PCR for adults showed that the foreign genes had been transferred into the shrimps and had expressed the corresponding proteins. This work has established a transgenic method for penaeid shrimps, which will set base for the application of genetic engineering breeding into industry.
Development and Validation of a Tuberculosis Medication Adherence Scale
Xiaoxv Yin, Xiaochen Tu, Yeqing Tong, Rui Yang, Yunxia Wang, Shiyi Cao, Hong Fan, Feng Wang, Yanhong Gong, Ping Yin, Zuxun Lu
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0050328
Abstract: Background Medication adherence is critical in Tuberculosis (TB) treatment success, but existing tools are inadequate in identifying non-adherents, reasons for non-adherence or interventions to improve adherence. This study intended to fill the gap by developing and validating a TB medication adherence scale (TBMAS). Methods An initial 41-item TBMAS was designed through review of literature, consultation from an 8-member clinical expert panel and a 15-patient focus group, and pilot-testing in 25 TB patients. The questionnaire was validated in 438 patients who visited 23 community health centers for TB treatment in Wuhan from September 1, 2010, to August 31, 2011, using pharmacy refill records in a 15-week period as external criteria for medication adherence. After removing redundant and cross-loading items, the internal consistency, reliability and validity of TBMAS in identifying non-adherents were examined. Results The final TBMAS included 30 items scored on a 5-point Likert scale, and these items were loaded in nine distinct factors that explained 65% of cumulative variance among respondents. Cronbach's alpha, test-retest reliability and split-half reliability were 0.87, 0.83, and 0.85, respectively. Convergent validity was supported by statistically significant associations between TBMAS scores and adherence measured by pharmacy refill records. Receiver Operating Characteristics curve analysis suggested a cut-off point at 113, with which TBMAS showed a positive predictive value of 65.5% and sensitivity of 82.9% in identifying non-adherents. Conclusion TBMAS demonstrated satisfactory internal consistency, reliability and validity in identifying TB patients with poor adherence and potential causes for non-adherence.
Prevalence of Anxiety and Depressive Symptoms and Related Risk Factors among Physicians in China: A Cross-Sectional Study
Yanhong Gong, Tieguang Han, Wei Chen, Hassan H. Dib, Guoan Yang, Runsen Zhuang, Yuqi Chen, Xinyue Tong, Xiaoxv Yin, Zuxun Lu
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0103242
Abstract: Background Physicians’ poor mental health not only hinders their professional performance and affects the quality of healthcare provided but also adversely affects patients’ health outcomes. Few studies in China have evaluated the mental health of physicians. The purposes of this study are to quantify Chinese physicians’ anxiety and depressive symptoms as well as evaluate associated risk factors. Methods In our study, 2641 physicians working in public hospitals in Shenzhen in southern China were recruited and interviewed by using a structured questionnaire along with validated scales testing anxiety and depressive symptoms. Multivariable logistic regression models were used to identify risk factors for anxiety and depressive symptoms. Results An estimated 25.67% of physicians had anxiety symptoms, 28.13% had depressive symptoms, and 19.01% had both anxiety and depressive symptoms. More than 10% of the participants often experienced workplace violence and 63.17% sometimes encountered it. Among our study population, anxiety and depressive symptoms were associated with poor self-reported physical health, frequent workplace violence, lengthy working hours (more than 60 hours a week), frequent night shifts (twice or more per week), and lack of regular physical exercise. Conclusions Our study demonstrates that anxiety and depressive symptoms are common among physicians in China, and the doctor-patient relationship issue is particularly stressful. Interventions implemented to minimize workload, improve doctor-patient relationships, and assist physicians in developing healthier lifestyles are essential to combat anxiety and depressive symptoms among physicians, which may improve their professional performance.
Social Determinants of Community Health Services Utilization among the Users in China: A 4-Year Cross-Sectional Study
Yanhong Gong, Xiaoxv Yin, Yunxia Wang, Yongbin Li, Geng Qin, Liqun Liu, Wei Zhou, Fujian Song, Xiaoxin Dong, Shiyi Cao, Chen Yang, Huajie Yang, Jun Xie, Junan Liu, Zuxun Lu
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0098095
Abstract: Background To identify social factors determining the frequency of community health service (CHS) utilization among CHS users in China. Methods Nationwide cross-sectional surveys were conducted in 2008, 2009, 2010, and 2011. A total of 86,116 CHS visitors selected from 35 cities were interviewed. Descriptive analysis and multinomial logistic regression analysis were employed to analyze characteristics of CHS users, frequency of CHS utilization, and the socio-demographic and socio-economic factors influencing frequency of CHS utilization. Results Female and senior CHS clients were more likely to make 3–5 and ≥6 CHS visits (as opposed to 1–2 visits) than male and young clients, respectively. CHS clients with higher education were less frequent users than individuals with primary education or less in 2008 and 2009; in later surveys, CHS clients with higher education were the more frequent users. The association between frequent CHS visits and family income has changed significantly between 2008 and 2011. In 2011, income status did not have a discernible effect on the likelihood of making ≥6 CHS visits, and it only had a slight effect on making 3–5 CHS visits. Conclusion CHS may play an important role in providing primary health care to meet the demands of vulnerable populations in China. Over time, individuals with higher education are increasingly likely to make frequent CHS visits than individuals with primary school education or below. The gap in frequency of CHS utilization among different economic income groups decreased from 2008 to 2011.
Sparse Recovery of Linear Time-Varying Channel in OFDM System
Sparse Recovery of Linear Time-Varying Channel in OFDM System

Jiansheng Hu,Zuxun Song,Shuxia Guo
- , 2017, DOI: 10.15918/j.jbit1004-0579.201726.0214
Abstract: In order to improve the performance of linear time-varying (LTV) channel estimation, based on the sparsity of channel taps in time domain, a sparse recovery method of LTV channel in orthogonal frequency division multiplexing (OFDM) system is proposed. Firstly, based on the compressive sensing theory, the average of the channel taps over one symbol duration in the LTV channel model is estimated. Secondly, in order to deal with the inter-carrier interference (ICI), the group-pilot design criterion is used based on the minimization of mutual coherence of the measurement. Finally, an efficient pilot pattern optimization algorithm is proposed by a dual layer loops iteration. The simulation results show that the new method uses less pilots, has a smaller bit error ratio (BER), and greater ability to deal with Doppler frequency shift than the traditional method does.
In order to improve the performance of linear time-varying (LTV) channel estimation, based on the sparsity of channel taps in time domain, a sparse recovery method of LTV channel in orthogonal frequency division multiplexing (OFDM) system is proposed. Firstly, based on the compressive sensing theory, the average of the channel taps over one symbol duration in the LTV channel model is estimated. Secondly, in order to deal with the inter-carrier interference (ICI), the group-pilot design criterion is used based on the minimization of mutual coherence of the measurement. Finally, an efficient pilot pattern optimization algorithm is proposed by a dual layer loops iteration. The simulation results show that the new method uses less pilots, has a smaller bit error ratio (BER), and greater ability to deal with Doppler frequency shift than the traditional method does.
Effectiveness of interventions for hypertension care in the community – a meta-analysis of controlled studies in China
Lu Zuxun,Cao Shiyi,Chai Yun,Liang Yuan
BMC Health Services Research , 2012, DOI: 10.1186/1472-6963-12-216
Abstract: Background Hypertension is a serious public health problem in China and in other developing countries. Our aim is to conduct a systematic review of studies on the effectiveness of community interventions for hypertension management in China. Methods China National Knowledge Infrastructure, PubMed, and references of retrieved articles were searched to identify randomised or quasi-randomised controlled studies that evaluated community hypertension care in mainland China. One reviewer extracted and a second reviewer checked data from the included studies. Results We included 94 studies, 93 of which were in Chinese language, that evaluated the following interventions: health education, improved monitoring, family-support, self-management, healthcare management changes and training of providers. The study quality was generally poor, with high risk of biased outcome reporting and significant heterogeneity between studies. When reported, the vast majority of the included studies reported statistically significantly improved outcomes in the intervention group. By assuming zero treatment effects for missing outcomes, the weighted reduction in the intervention group was 6 9 (95% CI: 4 9 to 8 9) mm Hg for systolic BP, and 3 8 (95% CI: 2 6 to 5 0) mm Hg for diastolic BP. Exploratory subgroup analyses found no significant differences between different interventions. Conclusions After taking account of possible reporting biases, a wide range of community interventions for hypertension care remain effective. The findings have implications for China and other low and middle income countries facing similar challenges. Because of significant heterogeneity and high risk of bias in the available studies, further well designed studies should be conducted in China to provide high quality evidence to inform policy decisions on hypertension control.
Evaluation of Responsiveness of Community Health Services in Urban China: A Quantitative Study in Wuhan City
Qing Luo, Qi Wang, Zuxun Lu, Junan Liu
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0062923
Abstract: Background With the objective of the national health services systems reform to move care to the community, community health services (CHS) are becoming the gateways of the health system in China. This study aims to evaluate the levels and distributions of the responsiveness of CHS in urban China and identify the relevant features to provide the government with policy advice on the improvement of CHS responsiveness. Methods A total of 872 face-to-face interviews were conducted in community health centers (CHCs) from 2007 to 2009. Indicators of responsiveness that were recommended by the World Health Organization were adopted, and non-conditional logistic regression analysis was performed to explore the factors associated with the levels and distributions of the responsiveness of CHS. Results The responsiveness scored at a fairly ‘good’ level of 7.45, 7.45, and 7.46 for CHS in years 2007, 2008, and 2009, respectively. The representative responsiveness inequality indexes were 0.097, 0.101, and 0.109, respectively, indicating the moderately balanced distributions of responsiveness in these three years. During this period, the scores of responsiveness elements were highest at 7.44 to 8.34 in “dignity”, “communication”, and “social support”, while lowest at 6.76 to 7.54 in “autonomy”, “confidentiality”, and “basic amenities”. The results of the logistic regression analysis suggested that five elements (OR value), namely, “dignity” (1.414–3.345), “communication” (1.218–3.655), “basic amenities” (1.251–2.362), “prompt attention” (1.098–1.590), and “autonomy” (1.416–2.173), had significant associations with CHS responsiveness. Conclusions The responsiveness of CHS in Wuhan City was fairly good but still requires further improvement, particularly on the working conditions of CHCs and communication skills trainings among CHS workers.
Review of the Book "Advanced MIMO System"  [PDF]
Chuan Gong
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2012, DOI: 10.4236/ijcns.2012.55032
Abstract: This book concerns most of recent advances of the multiple-input multiple-output (MIMO) system. An outstanding feature of author' approach is equal attention to both the theoretical analysis and practical application involved in this system. A series of important research results from the polarized MIMO systems to antenna selection in MIMO Systems are discussed in detail in the paper, which are all well-organized and adequately supported by the elaborate figures and data.
DEM Simulations of Granular Soils under Undrained Triaxial Compression and Plane Strain  [PDF]
Guobin Gong
Journal of Applied Mathematics and Physics (JAMP) , 2015, DOI: 10.4236/jamp.2015.38123
Abstract:

The paper presents 3D DEM simulation results of undrained tests for loose assemblies with varied porosities under both triaxial compression and plane strain conditions, using a periodic cell. The undrained tests were modelled by deforming the samples under constant volume conditions, which corresponds to saturated soil samples. The undrained stress paths are shown to be qualitatively similar to physical experimental results. The triggering of liquefaction and temporary liquefaction is identified by a microscopic parameter with redundancy factor (RF) equal to unity, which defines the transition from “solid-like” to “liquid-like” behaviour. The undrained behaviour of granular soils is found to be mainly governed by the evolution of redundancy factor, and a reversal of deviatoric stress in stress path (temporary liquefaction) is found to be due to temporary loss of contacts forming a structural mechanism in the system where RF is smaller than unity during the evolution.

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