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Search Results: 1 - 10 of 8842 matches for " Gu Danan "
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Sociodemographic Effects on the Onset and Recovery of ADL Disability among Chinese Oldest-old
Gu Danan,Zeng Yi
Demographic Research , 2004,
Abstract: By pooling the data from the three waves (1998, 2000, and 2002) of the Chinese Longitudinal Health and Longevity Survey, this study examines the association of sociodemographic factors with the onset and recovery of ADL disability including changes in functional status before dying. The results show that the sociodemographic factors play some specific roles in disability dynamics at very high ages even after controlling for a rich set of confounders. Our results also point out that the conventional method, which excludes the information of ADL changes before dying due to unavailability of the data, overestimates the effects of age, gender, ethnicity, and living alone on disability transitions whereas it underestimates the effects of SES, although such discrepancies are not very big compared with the results including information of ADL changes before dying.
Survival Differences among Native-Born and Foreign-Born Older Adults in the United States
Matthew E. Dupre, Danan Gu, James W. Vaupel
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0037177
Abstract: Background Studies show that the U.S. foreign-born population has lower mortality than the native-born population before age 65. Until recently, the lack of data prohibited reliable comparisons of U.S. mortality by nativity at older ages. This study provides reliable estimates of U.S. foreign-born and native-born mortality at ages 65 and older at the end of the 20th century. Life expectancies of the U.S. foreign born are compared to other developed nations and the foreign-born contribution to total life expectancy (TLE) in the United States is assessed. Methods Newly available data from Medicare Part B records linked with Social Security Administration files are used to estimate period life tables for nearly all U.S. adults aged 65 and older in 1995. Age-specific survival differences and life expectancies are examined in 1995 by sex, race, and place of birth. Results Foreign-born men and women had lower mortality at almost every age from 65 to 100 compared to native-born men and women. Survival differences by nativity were substantially greater for blacks than whites. Foreign-born blacks had the longest life expectancy of all population groups (18.73 [95% confidence interval {CI}, 18.15–19.30] years at age 65 for men and 22.76 [95% CI, 22.28–23.23] years at age 65 for women). The foreign-born population increased TLE in the United States at older ages, and by international comparison, the U.S. foreign born were among the longest-lived persons in the world. Conclusion Survival estimates based on reliable Medicare data confirm that foreign-born adults have longer life expectancy at older ages than native-born adults in the United States.
Association of Divorce with Socio-Demographic Covariates in China, 1955-1985
Zeng Yi,Gu Danan,Schultz T. Paul,Wang Deming D.
Demographic Research , 2002,
Abstract: Based on a unique data set on the event history of marriage and divorce collected in the In-Depth Fertility Surveys conducted in Shanghai, Shaanxi, and Hebei in 1985 and a multivariate hazards model, this paper investigates the association between divorce risk and socio-demographic factors in China. Controlling for several other socio-demographic factors, we demonstrate that the risk of divorce for women who married before age 18 is twice as high as that of those married after age 20; the risk of divorce of arranged marriages is about 2.6 times as high as that of not-arranged ones. The number of children is highly and negatively correlated with risk of divorce; the traditional son preference does not seem having substantial effects on divorce among women who have one or two children; but the risk of divorce of women who have three or more daughters without a son was 2.2 times as high as that of those women who have three or more children with at least one son. The divorce level in urban areas is higher than that in rural areas. The greater proportion of arranged and early marriages plus some other special factors in a less developed region (Shaanxi) contributes to its higher general divorce rate before 1985, in comparison with the advanced region (Shanghai). The divorce level in Shanghai after 1985 has become higher than that in Shaanxi. It seems that education level is positively related to divorce and labor force participation is negatively related to divorce, but the estimates are not statistically significant. Some explanations of these findings are also discussed in this paper.
Avant-propos
Jules Danan,Marie-Claire Djaballah Boulahbel
Yod : Revue des études Hébra?ques et Juives , 2012,
Abstract: La presse écrite du Moyen-Orient a pris son envol et connu son apogée à la fin du xixe siècle. Cela s’est traduit par une diversification rapide tout au long du xxe siècle. Les premières décennies de cette période furent particulièrement décisives. La presse écrite prit alors de nouvelles formes génériques. Les revues et les journaux devinrent des vecteurs de la modernité et contribuèrent activement à la transformation des sociétés. Nous publions dans ce numéro de YOD, qui n’est pas exclusive...
Construction of a potato consensus map and QTL meta-analysis offer new insights into the genetic architecture of late blight resistance and plant maturity traits
Sarah Danan, Jean-Baptiste Veyrieras, Véronique Lefebvre
BMC Plant Biology , 2011, DOI: 10.1186/1471-2229-11-16
Abstract: Nineteen QTL publications for late blight resistance were considered, seven of them reported maturity QTLs. Twenty-one QTL maps and eight reference maps were compiled to construct a 2,141-marker consensus map on which QTLs were projected and clustered into meta-QTLs. The whole-genome QTL meta-analysis reduced by six-fold late blight resistance QTLs (by clustering 144 QTLs into 24 meta-QTLs), by ca. five-fold maturity QTLs (by clustering 42 QTLs into eight meta-QTLs), and by ca. two-fold QTL confidence interval mean. Late blight resistance meta-QTLs were observed on every chromosome and maturity meta-QTLs on only six chromosomes.Meta-analysis helped to refine the genomic regions of interest frequently described, and provided the closest flanking markers. Meta-QTLs of late blight resistance and maturity juxtaposed along chromosomes IV, V and VIII, and overlapped on chromosomes VI and XI. The distribution of late blight resistance meta-QTLs is significantly independent from those of Rpi-genes, resistance gene analogs and defence-related loci. The anchorage of meta-QTLs to the potato genome sequence, recently publicly released, will especially improve the candidate gene selection to determine the genes underlying meta-QTLs. All mapping data are available from the Sol Genomics Network (SGN) database.The number of publications reporting the mapping of QTLs (quantitative trait locus) in plants has exponentially increased since the Eighties, reaching a total of about 34,300 papers in 2010 (source: Google Scholar with key words "QTL" and "plant"). For a few species only, this huge amount of QTL data has been recorded in databases that enable quick comparison of QTL mapping results from independent experiments (e.g. Gramene for maize and rice). But for most species, QTL data accumulates in bibliography until the coming out of hot-spot genomic regions that become targets for introgression into breeding material or for cloning. To get a comprehensive understanding of the geneti
Identification of the risk for liver fibrosis on CHB patients using an artificial neural network based on routine and serum markers
Danan Wang, Qinghui Wang, Fengping Shan, Beixing Liu, Changlong Lu
BMC Infectious Diseases , 2010, DOI: 10.1186/1471-2334-10-251
Abstract: 339 chronic hepatitis B patients with HBsAg-positive were investigated retrospectively, and divided at random into 2 subsets with twice as many patients in the training set as in the validation set; 116 additional patients were consequently enrolled in the study as the testing set. A three-layer artificial neural network was developed using a Bayesian learning algorithm. Sensitivity and ROC analysis were performed to explain the importance of input variables and the performance of the neural network.There were 329 patients without significant fibrosis and 126 with significant fibrosis in the study. All markers except gender, HB, ALP and TP were found to be statistically significant factors associated with significant fibrosis. The sensitivity analysis showed that the most important factors in the predictive model were age, AST, platelet, and GGT, and the influence on the output variable among coal miners were 22.3-24.6%. The AUROC in 3 sets was 0.883, 0.884, and 0.920. In the testing set, for a decision threshold of 0.33, sensitivity and negative predictive values were 100% and all CHB patients with significant fibrosis would be identified.The artificial neural network model based on routine and serum markers would predict the risk for liver fibrosis with a high accuracy. 47.4% of CHB patients at a decision threshold of 0.33 would be free of liver biopsy and wouldn't be missed.Approximately 350 million people worldwide are chronically infected with hepatitis B virus (HBV), especially in many developing countries in Asia[1-3]. Liver fibrosis progression is commonly found in patients with chronic hepatitis B (CHB). Up to 40% of CHB patients will develop complications of liver cirrhosis and hepatocellular carcinoma (HCC)[4]. Patients with significant fibrosis or cirrhosis should be considered for antiviral therapy, which can potentially reverse cirrhosis and reduce complications[5-7].Currently, liver biopsy, a widely used gold standard for the examination of the extent
A Factorial Validation of Knowledge-Sharing Motivation Construct  [PDF]
Qinxuan Gu, Yingting Gu
Journal of Service Science and Management (JSSM) , 2011, DOI: 10.4236/jssm.2011.41009
Abstract: While there is increasingly strategic importance in knowledge, it is facing new challenges to manage knowledge effectively. The paper studies the motivational construct model for knowledge sharing from the perspective of content theories and social motivation theories. The data collected by using the questionnaire survey from a variety of industries was analyzed on the basis of interviews and pretest. The results of exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) showed the motivational construct model for knowledge sharing was comprised of existence motivation, relatedness motivation, growth motivation and norm motivation. The results extended the perspectives for knowledge sharing motivation and provided theoretical evidences for facilitating knowledge sharing behavior.
Multi-objective Optimization of Multi-Agent Elevator Group Control System Based on Real-time Particle Swarm Optimization Algorithm  [PDF]
Yanwu Gu
Engineering (ENG) , 2012, DOI: 10.4236/eng.2012.47048
Abstract: In order to get a globally optimized solution for the Elevator Group Control System (EGCS) scheduling problem, an algorithm with an overall optimization function is needed. In this study, Real-time Particle Swarm Optimization (RPSO) is proposed to find an optimal solution to the EGCS scheduling problem. Different traffic patterns and controller mechanisms for EGCS are analyzed. This study focuses on up-peak traffic because of its critical importance to modern office buildings. Simulation results show that EGCS based on Multi-Agent Systems (MAS) using RPSO gives good results for up-peak EGCS scheduling problem. Besides, the elevator real-time scheduling and reallocation functions are realized based on RPSO in case new information is available or the elevator becomes busy because it is unavailable or full. This study contributes a new scheduling algorithm for EGCS, and expands the application of PSO.
Research on the Cultivation of “Managerial” Accounting Talents’ IT Quality  [PDF]
Lingyan Gu
Open Journal of Accounting (OJAcct) , 2012, DOI: 10.4236/ojacct.2012.11002
Abstract: The rapid development of information technology puts forward higher request on the accounting personnel’s IT quality. This paper begins with the analysis about the information technologies which impact on accounting personnel in order to discuss what IT quality should be possessed by accounting personnel. Then according to the target of “managerial” accounting talents cultivation mode, it proposes several suggestions for the university about how to cultivate the “managerial” accounting talents’ IT quality.
The Allocation of Family Guanxi-Oriented Control Rights
—Evidence from Family Listed Companies of Zhejiang China
 [PDF]

Lingyan Gu
American Journal of Industrial and Business Management (AJIBM) , 2014, DOI: 10.4236/ajibm.2014.42016
Abstract:

Different from the market-oriented control mechanism in British and American, the guanxi-oriented control mechanism is a significant feature in Chinese family business. This paper proposes the concept of family guanxi-oriented control rights allocation for the first time. Based on the analysis about the influencing factors of the family guanxi-oriented control rights allocation, we use the sample companies coming from Zhejiang province of China to do further discussion. We find that 1) the actual controllers of Zhejiang family listed companies mainly have blood relationship; 2) parts of companies allocate the control rights between the family members who have more than three kinds of guanxi; 3) the controlling families prefer to control the board of the listed companies; 4) the intergenerational succession of control rights in Zhejiang family listed companies has been highlighted.

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