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Search Results: 1 - 10 of 33032 matches for " Shuping Guo "
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The Effects of Trust and Contractual Mechanism on Working Relationships—An Empirical Study in Engineering Construction Projects  [PDF]
Shuping Guo, Ping Lu, Yinqiu Song
American Journal of Industrial and Business Management (AJIBM) , 2013, DOI: 10.4236/ajibm.2013.36062
Abstract: Inefficiency is usually one of the perceived ills within the construction projects and relationships among participants needing improvement. With the rising trend of partnerships in engineering construction projects, trust as an essential element in partnerships has become of increasing concern too. A growing stream of study has discussed the importance of trust in promoting interpersonal relationships among project participants. And formal contract has been closely watched which can mitigate exchange hazards. However, the relation between trust and contract is controversial. Based on cross-sectional survey data, regression analysis was used to test the impact of trust on satisfaction with working relationships and project performance in engineering construction projects in China. Likewise, the moderating effect of contractual mechanism on the relationship between trust and working relationships is explored. The results show that working relationships are positively associated with trust and satisfying working relationships have significant impact on project performance. The empirical findings also support the moderating effect of contractual mechanism. The conclusions enrich the research of working relationship, and provide some practical implications for enterprises.
The earth dynamic system: the earth rotation vs mantle convection  [PDF]
Shuping Chen
Natural Science (NS) , 2010, DOI: 10.4236/ns.2010.212162
Abstract: The earth dynamic system is one of the key scientific questions on the earth science. The thermodynamic behavior and gravity force of the earth and the rheology nature of the mantle prove that mantle convection is the main power source leading the lithosphere to break and move. Yet the directivity of both the structures in the crust and plate movement reminds of the earth rotation. Here we demonstrate that the mantle convection and inertia force of the earth rotation affect each other, the former being the power source of lithosphere plate break and motion, and the latter determining the direction of the mantle convection and plate motion. The sense of plate motion depends on the mantle upwells, whose trends are controlled by the earth rotation. The geometric shapes of the plate boundaries can adjust the direction of plate movement.
Sodium 5-amino-1,3,4-thiadiazole-2-thiolate dihydrate
Jiayi Wu,Yifeng Wang,Guo Yi,Shuping Luo
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536809051897
Abstract: There are two 5-amino-1,3,4-thiadiazole-2(3H)-thiolate anions in the asymmetric unit of the title compound, Na+·C2H2N3S2 ·2H2O, which are almost perpendicular to each other [dihedral angle = 84.64 (6)°]. The two Na+ cations are in distorted fourfold coordinations by O atoms of the water molecules. The crystal structure is stabilized by N—H...S, O—H...N and O—H...S hydrogen bonds.
(1R,2R)-N,N′-Bis(ferrocenylmethyl)-1,2-diphenylethane-1,2-diamine
Yi Guo,Jianfeng Wang,Chixiao Zhang,Shuping Luo
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810024293
Abstract: The title compound, [Fe2(C5H5)2(C26H26N2)], was synthesized from a chiral diamine and ferrocenecarboxaldehyde and subsequent reduction with NaBH4. It has two chiral centers which both exhibit an R configuration. Two ferrocene groups are present in the molecular structure, with their cyclopentadienyl ring planes showing an almost perpendicular arrangement [dihedral angle 88.6 (1)°].
(S)-2-[(S,E)-4-(4-Chlorophenyl)-1-nitrobut-3-en-2-yl]cyclohexanone
Zhaobo Li,Yi Guo,Bailin Li,Shuping Luo
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809029213
Abstract: The title compound, C16H18ClNO3, was obtained by the organocatalytic asymmetric Michael addition of cyclohexanone to 1-chloro-4-[(1E,3E)-4-nitrobuta-1,3-dienyl]benzene. The double bond has an E configuration. The cyclohexanone ring adopts a chair conformation. The conformation of the molecule is stabilized by a weak intramolecular C—H...O hydrogen bond.
(S)-3-[(S,E)-4-(4-Chlorophenyl)-1-nitrobut-3-en-2-yl]thian-4-one
Zhaobo Li,Yifeng Wang,Yi Guo,Shuping Luo
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809043608
Abstract: The title compound, C15H16ClNO3S, was obtained by the organocatalytic asymmetric Michael addition of thian-4-one to 1-chloro-4-[(1E,3E)-4-nitrobuta-1,3-dienyl]benzene. The double bond has an E configuration and the thian-4-one six-membered ring adopts a chair conformation. The crystal structure is stabilized by weak intermolecular C—H...O hydrogen bonds.
On the Reactivation of the Pre-Existing Normal Fault  [PDF]
Shuping Chen, Zongpeng Chen
World Journal of Mechanics (WJM) , 2018, DOI: 10.4236/wjm.2018.85016
Abstract: The reactivation of pre-existing faults is a common phenomenon in a basin. This paper discusses the relationship between the pre-existing faults and the newly formed Coulomb shear fractures regarding pore fluid pressures. Based on the Coulomb fracture criterion and Byerlee frictional sliding criterion, an equation relating pore pressure coefficient (λe), minimum dip angle (αe) of the reactive pre-existing fault and the intersection point depth (z) between the pre-existing fault and a newly formed Coulomb shear fault in an extensional basin, is established in this paper. This equation enhanced the understanding on the reactivation of pre-existing faults and can be used to calculate paleo-pore fluid pressures. The bigger the pore fluid pressure in a pre-existing fault is, the less the minimum dip angle for a reactive pre-existing fault will be. The minimum dip angle is less in shallow area than that in deep area. This will be of significance in petroleum exploration and development.
Trends in Overweight and Obesity among Children and Adolescents in China from 1981 to 2010: A Meta-Analysis
Zhangbin Yu, Shuping Han, Jiahui Chu, Zhongya Xu, Chun Zhu, Xirong Guo
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0051949
Abstract: Background Overweight/obesity is a serious public health problem that affects a large part of the world population across all age and racial/ethnic groups. However, there has not been a meta-analysis of the prevalence of childhood and adolescent overweight/obesity in China during the past 30 years. Methods The China National Knowledge Infrastructure and Wanfang DATA, MEDLINE, EMBASE and Cumulative Index to Nursing and Allied Health Literature were searched for relevant studies published between January 1970 and June 2012. The prevalence of overweight/obesity over time was pooled using Stata/SE, version 9. Summary statistics (odds ratios, ORs) were used to compare sex-specific and urban-rural preponderance of overweight/obesity using Review Manager. Results After screening 1326 papers, we included 35 papers (41 studies), most of medium quality. The prevalence of overweight/obesity increased from 1.8% (95% confidence interval [CI], 0.4%–3.1%) and 0.4% (95% CI, ?0.1% to ?0.8%) respectively in 1981–1985 to 13.1% (95% CI, 11.2%–15.0%) and 7.5% (95% CI, 6.6%–8.4%) respectively in 2006–2010. The average annual increase was 8.3% and 12.4% respectively. Boys were more likely to be overweight/obese than girls (OR, 1.36; 95% CI, 1.24–1.49 and OR, 1.68; 95% CI, 1.52–1.86 respectively). The prevalence of overweight/obesity was higher in urban areas than in rural areas (OR, 1.66; 95% CI, 1.54–1.79 and OR, 1.97; 95% CI, 1.68–2.30 respectively). For age-specific subgroup analyses, both overweight and obesity increased more rapidly in the toddler stage than in other developmental stages. Sensitivity analyses showed that sample-size differences, study quality, overweight/obesity criteria and geographical distribution affected overweight/obesity prevalence. Conclusions Toddlers and urban boys were at particularly high risk; the prevalence in these groups increased more rapidly than in their counterparts. Public health prevention strategies are urgently needed to modify health behaviors of children and adolescents and control overweight/obesity in China.
Pre-Pregnancy Body Mass Index in Relation to Infant Birth Weight and Offspring Overweight/Obesity: A Systematic Review and Meta-Analysis
Zhangbin Yu, Shuping Han, Jingai Zhu, Xiaofan Sun, Chenbo Ji, Xirong Guo
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0061627
Abstract: Background Overweight/obesity in women of childbearing age is a serious public-health problem. In China, the incidence of maternal overweight/obesity has been increasing. However, there is not a meta-analysis to determine if pre-pregnancy body mass index (BMI) is related to infant birth weight (BW) and offspring overweight/obesity. Methods Three electronic bibliographic databases (MEDLINE, EMBASE and CINAHL) were searched systematically from January 1970 to November 2012. The dichotomous data on pre-pregnancy overweight/obesity and BW or offspring overweight/obesity were extracted. Summary statistics (odds ratios, ORs) were used by Review Manager, version 5.1.7. Results After screening 665 citations from three electronic databases, we included 45 studies (most of high or medium quality). Compared with normal-weight mothers, pre-pregnancy underweight increased the risk of small for gestational age (SGA) (odds ratios [OR], 1.81; 95% confidence interval [CI], 1.76–1.87); low BW (OR, 1.47; 95% CI, 1.27–1.71). Pre-pregnancy overweight/obesity increased the risk of being large for gestational age (LGA) (OR, 1.53; 95% CI, 1.44–1.63; and OR, 2.08; 95% CI; 1.95–2.23), high BW (OR, 1.53; 95% CI, 1.44–1.63; and OR, 2.00; 95% CI; 1.84–2.18), macrosomia (OR, 1.67; 95% CI, 1.42–1.97; and OR, 3.23; 95% CI, 2.39–4.37), and subsequent offspring overweight/obesity (OR, 1.95; 95% CI, 1.77–2.13; and OR, 3.06; 95% CI, 2.68–3.49), respectively. Sensitivity analyses revealed that sample size, study method, quality grade of study, source of pre-pregnancy BMI or BW had a strong impact on the association between pre-pregnancy obesity and LGA. No significant evidence of publication bias was observed. Conclusions Pre-pregnancy underweight increases the risk of SGA and LBW; pre-pregnancy overweight/obesity increases the risk of LGA, HBW, macrosomia, and subsequent offspring overweight/obesity. A potential effect modification by maternal age, ethnicity, gestational weight gain, as well as the role of gestational diseases should be addressed in future studies.
烟粉虱基因组和转录组研究及展望
The progress of genome and transcriptome analysis of Bemisia tabaci and its future perspectives

王书平,郭殿豪,李飞,Wang Shuping,Guo Dianhao,Li Fei
- , 2016, DOI: 10.13802/j.cnki.zwbhxb.2016.01.003
Abstract: 烟粉虱Bemisia tabaci (Gennadius)是世界性的重要害虫,为物种复合体,其中少数隐种近30年来入侵世界各国,并暴发成灾.在我国,最近几年MED隐种已经逐渐替代了之前入侵的MEAM1隐种,成为我国农田生态系统中的主要致害隐种.基因组和转录组研究的不断深入极大地推动了烟粉虱入侵机制、隐种替代机制、种系发生、不同隐种或地理种群鉴定、抗药性机制、烟粉虱与共生菌互作等领域的研究.本文简要综述了烟粉虱基因组和转录组测序的研究进展,介绍了转录组数据在种的分化和鉴定、共生菌的互作及抗药性研究领域的应用.
The tobacco whitefly, Bemisia tabaci (Gennadius), is a worldwide distributed agricultural pest, which is considered as a complex species. Some cryptic species have invaded many countries in the last three decades, causing huge economic and yield loss in agriculture. Mediterranean cryptic species (MED) entered into China and has replaced middle East-Asia minor 1 cryptic species (MEAM1). Genome and transcriptome analysis would greatly facilitate the researches on invasion mechanism, species complex, identification of cryptic species or geographical population, insecticide resistance mechanism, interaction between host and endosymbiont. Here, the progress of genome and transcriptome researches of B. tabaci were briefly summarized. The applications and future perspectives of omics studies in the whitefly field were also presented.
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