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In this paper we generalize ( U,N)-implications. First we introduce ( US, N)-operation by replacing the uninorm U with a semi-uninorm US in the definition of a ( U, N)-operation. Then the necessary and sufficient conditions that a ( US, N)-operation is a implication are given out. Furthermore, we characterize the ( US, N)-implications. Last we generalize the definition of rotation invariant and investigate the intersection between the residual implications and ( US,N)-implications derived from some semi-uninorms with the generalized rotation invariant. [ABSTRACT FROM AUTHOR]

Controlling Hopf bifurcation of a new modified hyperchaotic Lü system is investigated in this paper. A hybrid control strategy using both state feedback and parameter control is proposed. The control strategy realizes the delay of Hopf bifurcation. Furthermore, by applying the normal form theory, the stability of the bifurcation is determined. Numerical simulation results are given to support the theoretical analysis. [ABSTRACT FROM AUTHOR]

One class of fuzzy implications is introduced by means of the additive generators of continuous Archimedean t-norms. Basic properties of these implications are discussed. These implications are shown to be different from the known (S,N)-, R-, QL-, and Yager's f- and g-implications. Several functional equations with fuzzy implications are investigated. © 2012 Wiley Periodicals, Inc. [ABSTRACT FROM AUTHOR]

Based on previous microarray result of Brassica napus(heterozygous pairs of dominant male sterile line) and Arabidopsis thaliana genome,a differentially expressed B.napus gene Bn19070 which demonstrated high homology with At2g19070 emerged. It was well expressed in fertile stem with low expression level in male sterile stem. To understand Bn19070's function,amiRNA(artificial microRNA) gene silencing technique was used to disable the function of homologous gene At2g19070. Two interference targets from At2g19070 mRNA were selected and transformed into Arabidopsis. amiRNAi (amiRNA interference)phenotypes related to male sterility were observed in transgenic Arabidopsis, including decreased microspore number, deteriorated anther and fruitless. Expressions of both targets decreased remarkably (more than 90%) in T2 lines with similar phenomena. Results indicated the flexibility of amiRNAi intarget site selection. The interference research of At2g19070 would contribute to Bn19070 genestudy. [ABSTRACT FROM AUTHOR]

Based on previous analysis of microarray expression on Brassica napus homozygous pairs of dominant male sterile line, a differentially expressed Brassica napus gene (BnROP1) which is homologous to At3 G5 1300 (AtROP1) was selected. Method of fluorescent quantitative PCR was used to analyze the expression pattern of Bn-ROP1 in different tissues of B. napus, including root, stem, leaves, flower, pistil, stamen and silique. The results indicated that BnROP1 was highly expressed in fertile flower and stamen. On this basis, microRNA interference vector was constructed and then transformed into Arabidopsis thaliana by Agrobacterium, obtaining 12 transgenic seedlings. The phenotype of T1 transgenic generation was observed during florescence. Most transgenic seedlings showed reduction or disappearance of siliques, no pollen, short filaments, deteriorated anther and microspore. These phenomena indicated that these seedlings were fully - sterile or semi - sterile. The fluorescence quantitative PCR experiments on T2 generations of transgenic lines showed that the expression level of target gene decreased sig- nificantly. The correlation of transgenic male sterile phenotype and the silencing of ROP1 expressing indicated that ROP1 was not only promoting tip growth and maintaining growth polarity in pollen tubes but was also essential for plant fertility. [ABSTRACT FROM AUTHOR]

PURPOSE. This study aims to determine the 12-month and lifetime prevalence of generalized anxiety disorder (GAD) and its sociodemographic correlates. DESIGN AND METHODS. A total of 5,926 subjects were randomly selected and interviewed. FINDINGS. The overall 12-month and lifetime prevalence of GAD was 0.8%, and 1.2%, respectively. Being older than 25 years and female, lower education level, unemployed status, and lower (< RMB500/month) or higher (> RMB2000/month) monthly income were associated with increased risk of GAD. PRACTICE IMPLICATIONS. The low percentage of subjects treated for GAD indicates a major public health problem that should be addressed. [ABSTRACT FROM AUTHOR]

Objective: There has been no large-scale survey of suicide-related behaviours including suicidal ideations, plans and attempts in China involving both rural and urban areas and using standardized assessment tools. The aim of the present study was to determine the lifetime prevalence of suicide-related behaviour and its relationship with sociodemographic factors and psychiatric disorders in the rural and urban regions of Beijing, China. Methods: A total of 5926 subjects were randomly selected in Beijing and interviewed using the Composite International Diagnostic Interview. Basic sociodemographic and clinical data and data on suicide-related behaviour were also collected. Results: The overall lifetime prevalence estimates of suicidal ideation, plans and attempts were 2.3%, 1.4%, and 1.0%, respectively; the corresponding figures were 2.8%, 1.6%, and 1.3% in the rural sample, and 1.8%, 1.3%, and 0.9% in the urban sample. Age (>25years), female sex, unmarried status, lower education level, lower (RMB2000month-1) monthly income and presence of major medical disorders were significantly associated with increased risk of suicide-related behaviour. 36.2% of subjects with suicide-related behavior consulted a medical practitioner and 20.7% consulted a psychiatrist. Conclusions: The prevalence of lifetime suicide-related behaviour in Beijing is lower than in Western countries, but the low percentage of subjects treated for suicide-related behaviour indicates a major public health problem that should be addressed. National surveys are needed to further explore the prevalence of suicide-related behaviour in China. [ABSTRACT FROM AUTHOR]

An intrinsic extension of Padé approximation method, called the generalized Padé approximation method, is proposed based on the classic Padé approximation theorem. According to the proposed method, the numerator and denominator of Padé approximant are extended from polynomial functions to a series composed of any kind of function, which means that the generalized Padé approximant is not limited to some forms, but can be constructed in different forms in solving different problems. Thus, many existing modifications of Padé approximation method can be considered to be the special cases of the proposed method. For solving homoclinic and heteroclinic orbits of strongly nonlinear autonomous oscillators, two novel kinds of generalized Padé approximants are constructed. Then, some examples are given to show the validity of the present method. To show the accuracy of the method, all solutions obtained in this paper are compared with those of the Runge—Kutta method. [ABSTRACT FROM AUTHOR]