摘要：
Task scheduling is an essential aspect of parallel process system. This NP-hard problem assumes fully connected homogeneous processors and ignores contention on the communication links. However, as arbitrary processor network (APN), communication contention has a strong influence on the execution time of a parallel application. This paper investigates the incorporation of contention awareness into task scheduling. The innovation is the idea of dynamically scheduling edges to links, for which we use the earliest finish communication time search algorithm based on shortest-path search method. The other novel idea proposed in this paper is scheduling priority based on recursive rank computation on heterogeneous arbitrary processor network. In the end, to reduce time complexity of algorithm, a parallel algorithm is proposed and speedup O(PPE) is achieved. The comparison study, based on both randomly generated graphs and the graphs of some real applications, shows that our scheduling algorithm significantly surpasses classic and static communication contention awareness algorithm, especially for high data transmission rate parallel application.
关键词：
Periodic and subharmonic solutions;2nth-order;Functional difference equations;Discrete variational theory;p-Laplacian
摘要：
By using the critical point theory, some new criteria are obtained for the existence and multiplicity of periodic and subharmonic solutions to a 2nth-order nonlinear difference equation containing both advance and retardation involving p-Laplacian. The proof is based on the Linking Theorem in combination with variational technique. Our results generalize and improve the results in the literature. (C) 2013 Royal Dutch Mathematical Society (KWG). Published by Elsevier B.V. All rights reserved.
摘要：
There is increasing evidence for considerable interlinking between the responses to heat stress (HS) and light signaling. In the present work, we provide molecular evidence that BBX18, a negative regulator in photomorphogenesis belonging to the B-box zinc finger protein family in Arabidopsis thaliana, is involved in the regulation of thermotolerance. Using quantitative RT-PCR, GUS staining and immunoblot analysis, our results indicate that the expression of BBX18 was induced by HS. BBX18-RNAi and 35S::BBX18 transgenic Arabidopsis plants were obtained for functional analysis of BBX18. Under-expression of BBX18 displayed increased both basal and acquired thermotolerance in the transgenic plants, while over-expression of BBX18 reduced tolerance to HS in transgenic lines. Moreover, when wild-type, BBX18-RNAi and 35S::BBX18 transgenic plants were treated with HS, HR-related digalactosyldiacylglycerol synthase 1 (DGD1) was down-regulated by BBX18 in both normal and heat shock conditions. Besides, the expression levels of Hsp70, Hsp101 and APX2 were increased in BBX18-RNAi transgenic plants, but lower in 35S::BBX18 transgenic plants. However, the expression of HsfA2 was lower in BBX18-RNAi transgenic plants and higher in the 35S::BBX18 after high-temperature treatment. These results suggesting that, by modulated expression of a set of HS-responsive genes, BBX18 weakened tolerance to HS in Arabidopsis. So our data indicate that BBX18 plays a negative role in thermotolerance.
作者机构：
[Zhu, Jie; Zhou, Gui-Wei; Hu, Jue; Huang, Guo-Hua; Li, Shun-Ji] Institute of Virology, Hunan Agricultural University, Changsha, Hunan, China;[Wang, Xing; Zhao, Yi-Pei] Department of Plant Protection, Oriental Science & Technology College of Hunan Agricultural University, Changsha, Hunan, China;[Zhou, Zhong-Shi] Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, Beijing, China
摘要：
Ascoviruses are double-stranded DNA viruses that are pathogenic to lepidopteran hosts, particularly noctuid larvae. Infection of a larva is characterized by retarded growth, reduced feeding and yellowish body color. In this paper, we reported the growth and development of three major agricultural noctuid insect pests, Helicoverpa armigera (Hubner), Spodoptera exigua (Hubner) and Spodoptera litura (Fabricius), infected with Heliothis virescens ascovirus 3h (HvAV-3h). Using 10-fold serial dilutions (0 to 7) of HvAV-3h-containing hemolymph to infect S. litura larvae, we found no significant difference in larval mortalities from 0 to 10(3)-fold dilutions; however, significant differences were observed at 10(4)-fold dilution and above. Using a 10-fold dilution of HvAV-3h-containing hemolymph to infect H. armigera, S. exigua and S. litura larvae, we found that the growth and development were significantly affected. All infected larvae could not pupate; the survival times of treated H. armigera, S. litura and S. exigua larvae were significantly longer than untreated control larvae. Body weight showed significant difference between treated and untreated control group from day 1 after inoculation in H. armigera and S. exigua, but day 2 in S. litura. Additionally, food intake also showed significant difference between treated and untreated control group from day 2 after inoculation in H. armigera and S. litura, but day 3 in S. exigua.
期刊：
International journal of systematic and evolutionary microbiology,2014年64(Pt 11):3891-3896 ISSN：1466-5026
通讯作者：
Yang, Guiqin;Zhao, Yong
作者机构：
[Liu, Ting] College of Orient Science and Technology, Hunan Agricultural University, Changsha 410128, PR China;[Zhou, Shungui; Lu, Qin] Guangdong Institute of Eco-Environmental and Soil Sciences, Guangzhou 510650, PR China;[Zhao, Yong] College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, PR China ygqhappy@163.com yzhao@shou.edu.cn;[Yang, Guiqin] Guangdong Institute of Eco-Environmental and Soil Sciences, Guangzhou 510650, PR China ygqhappy@163.com yzhao@shou.edu.cn;[Li, Jibing] College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, PR China Guangdong Institute of Eco-Environmental and Soil Sciences, Guangzhou 510650, PR China
通讯机构：
[Zhao, Yong] College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, PR China yzhao@shou.edu.cn;[Yang, Guiqin] Guangdong Institute of Eco-Environmental and Soil Sciences, Guangzhou 510650, PR China yzhao@shou.edu.cn
摘要：
A Gram-reaction-variable, rod-shaped, motile, facultatively aerobic and endospore-forming bacterium, designated strain GSS02(T), was isolated from a forest soil. Strain GSS02(T) was capable of reducing humic substances and Fe(III) oxides. Strain GSS02(T) grew optimally at 35 degrees C, at pH 78 and in the presence of 1% NaCl. The predominant menaquinone was MK-7. The major cellular fatty acids were anteiso-C(15:0) and iso-C(16:0) and the polar lipid profile contained mainly phosphatidylethanolamine, diphosphatidylglycerol and phosphatidylglycerol, with moderate amounts of two unknown aminophospholipids and a minor amount of one unknown lipid. The DNA G+C content was 53.4 mol%. Comparative 16S rRNA gene sequence analysis showed that strain GSS02(T) was related most closely to Paenibacillus terrigena JCM 21741(T) (98.1% similarity). Mean DNA-DNA relatedness between strain GSS02(T) and P. terrigena JCM 21741(T) was 58.8 +/- 0.5%. The phylogenetic, chemotaxonomic and phenotypic results clearly demonstrated that strain GSS02(T) belongs to the genus Paenibacillus and represents a novel species, for which the name Paenibacillus guangzhouensis sp. nov. is proposed. The type strain is GSS02(T) ( =KCTC 33171(T) =CCTCC AB 2013236(T)).
关键词：
Homoclinic orbits;Nonlinear difference equations;Jacobi operators;Advance and retardation;Discrete variational theory
摘要：
By using the critical point theory, the existence of a nontrivial homoclinic orbit which decays exponentially at infinity for difference equations containing both advance and retardation is obtained. The proof is based on the Mountain Pass Lemma in combination with periodic approximations. Our results obtained successfully extend and complement the results in the literature. (C) 2014 Royal Dutch Mathematical Society (KWG). Published by Elsevier B.V. All rights reserved.
作者机构：
[Feng, Xiuli; Liu, Ke; He, Danni; Huang, Li; Lian, Xue; Cao, Ruibing; Chen, Puyan; Pang, Ran; Zhou, Bin] Nanjing Agr Univ, Dept Vet Med Coll, Key Lab Anim Dis Diagnost & Immunol, Nanjing 210095, Jiangsu, Peoples R China.;[Ma, Zhiyong] Chinese Acad Agr Sci, Shanghai Vet Res Inst, Shanghai 200241, Peoples R China.;[Luo, Chao] Hunan Agr Univ, Dept Orient Sci & Technol Coll, Changsha, Hunan, Peoples R China.;[Miao, Denian] Shanghai Acad Agr Sci, Shanghai, Peoples R China.
通讯机构：
[Chen, PY] Nanjing Agr Univ, Dept Vet Med Coll, Key Lab Anim Dis Diagnost & Immunol, YiFu 4037, Nanjing 210095, Jiangsu, Peoples R China.
关键词：
Porcine reproductive and respiratory syndrome virus;Phage display;Antiviral peptide
摘要：
Porcine reproductive and respiratory syndrome is an important infectious disease of pigs and has a significant harmful effect on the livestock industry, especially in China. PRRSV ORF1b gene encodes primary proteins which play a vital role during PRRSV replication. In this paper, various 12-amino-acid peptides were displayed. These peptides could bind to the polymerase and helicase of PRRSV ORF1b protein, respectively, in which p9 exerted the highest antiviral activity with an IC50 of 56 mu M, and the minimum toxicity to cells. It was proved that p9 inhibited PRRSV replication in infected MARC-145 cells in a dose-dependent manner, and the amino acid sequence of HRILMRIR was important for antiviral activity of p9. Also, p9 could bind to the cell membrane and penetrated into cells. These result suggested that p9 might be a potential therapeutic drug for PRRSV infection. Crown Copyright (C) 2012 Published by Elsevier Inc. All rights reserved.
关键词：
Existence;Periodic solutions;Nonlinear;Difference equations;Discrete variational theory
摘要：
By making use of the critical point theory, the existence of periodic solutions for a class of nonlinear difference equations is obtained. The proof is based on the saddle point theorem in combination with variational technique. The problem is to solve the existence of periodic solutions of a class of nonlinear difference equations. Results obtained complement the existing one.
期刊：
REVISTA DE LA REAL ACADEMIA DE CIENCIAS EXACTAS FISICAS Y NATURALES SERIE A-MATEMATICAS,2016年110(1):65-78 ISSN：1578-7303
通讯作者：
Shi, HP
作者机构：
[Liu, Xia] Hunan Agr Univ, Oriental Sci & Technol Coll, Changsha 410128, Hunan, Peoples R China.;[Liu, Xia] Hunan Gricultural Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.;[Shi, Haiping] Guangdong Construct Vocat Technol Inst, Modern Business & Management Dept, Guangzhou 510440, Guangdong, Peoples R China.;[Zhang, Yuanbiao] Jinan Univ, Packaging Engn Inst, Zhuhai 519070, Peoples R China.
通讯机构：
[Shi, HP] Guangdong Construct Vocat Technol Inst, Modern Business & Management Dept, Guangzhou 510440, Guangdong, Peoples R China.
关键词：
Homoclinic orbits;Second order;p-Laplacian difference equations;Discrete variational methods;Advance and retardation
摘要：
Using the critical point theory, we obtain the existence of a nontrivial homoclinic orbit for second order -Laplacian difference equations containing both advance and retardation. The proof is based on the Mountain Pass Lemma in combination with periodic approximations. One of our results generalizes and improves the results in the literature.
摘要：
We investigate the influence of a cosmological constant Lambda on gravitational lensing effects. By the method of an elliptic integral, we give the solution to the null geodesic equation in Schwarzschild-de Sitter spacetime. The deflection angle of light is obtained by studying the intrinsic geometry of the spatial equatorial plane in Schwarzschild-de Sitter spacetime. By applying the expansion of elliptic integrals, we find the deflection angle in the weak field limit and in the strong field limit, respectively. We verify that the deflection angle, angular position, and magnification of images are all monotonically decreasing functions of Lambda.
摘要：
We investigate the influence of cosmological constant. on gravitational lensing. By the method of an elliptic integral, we give out the solution to the null geodesic equation in the Reissner-Nordstrom-de Sitter spacetime. The deflection angle of light is obtained by studying the intrinsic geometry of the spatial equatorial plane in the Reissner-Nordstrom-de Sitter spacetime. By applying the expansion of elliptic integrals, we find the deflection angle in the weak field limit and in the strong field limit, respectively. We find the angular position and magnification of images and discuss its behavior under changed.. At last, we give out the higher-order term in the strong field limit.
作者机构：
[Zeng, Ying] Orient Science &Technology College of Hunan Agricultural University, Changsha, China;[Yuan, Zheming; Chen, Yuan; Luo, Feng] Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha, China;[Yuan, Zheming] Hunan Provincial Key Laboratory for Germplasm Innovation and Utilization of Crop, Hunan Agricultural University, Changsha, China;[Luo, Feng] College of Plant Protection, Hunan Agricultural University, Changsha, China;[Luo, Feng] School of Computing, Clemson University, Clemson, South Carolina, United States of America
摘要：
The maximal information coefficient (MIC) captures dependences between paired variables, including both functional and non-functional relationships. In this paper, we develop a new method, ChiMIC, to calculate the MIC values. The ChiMIC algorithm uses the chi-square test to terminate grid optimization and then removes the restriction of maximal grid size limitation of original ApproxMaxMI algorithm. Computational experiments show that ChiMIC algorithm can maintain same MIC values for noiseless functional relationships, but gives much smaller MIC values for independent variables. For noise functional relationship, the ChiMIC algorithm can reach the optimal partition much faster. Furthermore, the MCN values based on MIC calculated by ChiMIC can capture the complexity of functional relationships in a better way, and the statistical powers of MIC calculated by ChiMIC are higher than those calculated by ApproxMaxMI. Moreover, the computational costs of ChiMIC are much less than those of ApproxMaxMI. We apply the MIC values tofeature selection and obtain better classification accuracy using features selected by the MIC values from ChiMIC.
摘要：
The mir-155 family is not only involved in a diversity of cancers, but also as a regulator of the immune system. However, the evolutionary history of this family is still unclear. The present study indicates that mir-155 evolved independently with lineage-specific gain of miRNAs. In addition, arm switching has occurred in the mir-155 family, and alternative splicing could produce two different lengths of ancestral sequences, implying the alternative splicing can also drive evolution for intragenic miRNAs. Here we screened validated target genes and immunity- related proteins, followed by analyzation of the mir-155 family function by high-throughput methods like the gene ontology (GO) and Kyoto Eneyclopedin of Genes and Genemes (KEGG) pathway enrichment analysis. The high-throughput analysis showed that the CCND1 and EGFR genes were outstanding in being significantly enriched, and the target genes cebpb and VCAM1 and the protein SMAD2 were also vital in mir-155-related immune reponse activities. Therefore, we conclude that the mir-155 family is highly conserved in evolution, and CCND1 and EGFR genes might be potential targets of mir-155 with regard to progress of cancers, while the cebpb and VCAM1 genes and the protein SMAD2 might be key factors in the mir-155 regulated immune activities.
关键词：
Periodic and subharmonic solutions;2nth-order;Nonlinear difference equations;Discrete variational theory
摘要：
By using the critical point method, some new criteria are obtained for the existence and multiplicity of periodic and subharmonic solutions to a 2nth-order nonlinear difference equation. The proof is based on the Linking Theorem in combination with variational technique. Our results generalize and improve some known ones.
通讯机构：
[Cai, TS] Cent S Univ, Xiangya Hosp 2, Inst Med Psychol, 139 Ren Min Zhong Rd, Changsha 410011, Hunan, Peoples R China.
关键词：
Subjective well-being;Stability;Variation;Latent state-trait model
摘要：
In order to explore the stability and variation of the indicators of subjective well-being (SWB), the classic Latent State-Trait (LST), Trait-State-Occasion (TSO), and Indicator-Specific Trait (IT) models were employed to evaluate the stability and variability of life satisfaction, positive emotions, and negative emotions. The study was conducted based on a 1-year and three-wave longitudinal study with a sample of 360 college students. The results show the suitability of the IT model. The consistency coefficients (CO) of all variables are significantly higher than occasion-specificity coefficients (OSpe) in this model, indicating that stability is a remarkable feature of SWB. Moreover, the consistency coefficients of positive affection and negative affection are much higher than that of life satisfaction, suggesting that the positive and negative emotions of individuals are more stable than life satisfaction.
作者：
Ling, Yu;Huebner, E. Scott;Liu, Jin;Liu, Wen-Li;Zhang, Jun;Xiao, Jing
期刊：
PERSONALITY AND INDIVIDUAL DIFFERENCES,2015年87:307-311 ISSN：0191-8869
通讯作者：
Xiao, J
作者机构：
[Zhang, Jun; Xiao, Jing] Capital Normal Univ, Beijing Key Lab Learning & Cognit, Beijing 100048, Peoples R China.;[Zhang, Jun; Xiao, Jing] Capital Normal Univ, Dept Psychol, Beijing 100048, Peoples R China.;[Liu, Wen-Li] Hunan Agr Univ, Oriental Inst Sci & Technol, Changsha 410128, Hunan, Peoples R China.;[Ling, Yu] Hunan Agr Univ, Coll Educ, Changsha 410128, Hunan, Peoples R China.;[Liu, Jin] Univ S Carolina, Dept Educ Studies, Columbia, SC 29209 USA.
通讯机构：
[Xiao, J] Capital Normal Univ, Beijing Key Lab Learning & Cognit, Beijing 100048, Peoples R China.
关键词：
Social support;Self-esteem;Optimism;Hope;Chinese adolescents
摘要：
We investigated the origins of individual differences in hope in adolescents based on a social-cognitive model. Specifically, we examined a mediating role for self-esteem and optimism in the relation between social support and hope. One thousand six hundred fifty four adolescents (781 boys and 873 girls) from Mainland China completed the Multidimensional Scale of Perceived Social Support (MSPSS), the Rosenberg Self-Esteem Scale (RSES), the revised Life Orientation Test (LOT-R) and the Children's Hope Scale (CHS). Social support was associated positively with self-esteem, optimism and hope, and hope was associated positively with self-esteem and optimism. Structural equation modeling analyses revealed that self-esteem and optimism partially mediated the relation between social support and hope, accounting for 62.7% of the effect of social support on hope. The significance and limitations of the results are discussed. (C) 2015 Elsevier Ltd. All rights reserved.
