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Search Results: 1 - 10 of 80832 matches for " Yinqiu Liu "
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The Effect of Proactive Personality on Individual Improvisation: The Moderating Role of Job Autonomy  [PDF]
Xuehui Wu, Yinqiu Ma
Open Journal of Social Sciences (JSS) , 2019, DOI: 10.4236/jss.2019.74015
Abstract: The trigger mechanism of individual improvisation needs further research. Based on social cognitive theory and job characteristics model theory, this paper establishes the relationship model between proactive personality and individual improvisation, regarding self-efficacy as a mediator and job autonomy as a moderator. Through regression analysis of 298 samples, the results show that proactive personality is positively related to individual improvisation, and self-efficacy plays a role of intermediary mechanism in this relationship. Besides, we also find out that job autonomy has a regulatory effect on the relationship between self-efficacy and individual improvisation. This research provides a reference for arousing and managing individual improvisation.
The presence of phosphorylation form of D1 protein in its cross-linked aggregates in high light treated spinach leaves in vivo
Huimin Wei,Junwei Guo,Shuang Zhang,Bo Huang,Yinqiu Liu,Linfang Du,
WEI
,Huimin,GUO,Junwei,ZHANG,Shuang,HUANG,Bo,LIU,Yinqiu,DU,Linfang

科学通报(英文版) , 2006,
Abstract: In the present study, using specific antibody against D1 protein, we detected four aggregates of D1 protein in thylakoid membranes from spinach leaves illuminated at high light (800–2500 μmol photons·m 2·s 1) for 3 h. Their accumulations were dependent on the light intensity to which the leaves had been subjected. Further immunoblot analysis indicated that 70 kD aggregate was a product of D1 protein cross-linked with CP43, 65 and 60 kD aggregate were two cross-linked products between D1 and D2 proteins, and 41 kD aggregate was one cross-linked D1 with α-subunit of cytochrome b 559 (Cyt b 559). This result provided the evidence for the existence of the aggregation of the D1 protein in vivo. The maximal level of D1/Cyt b 559 aggregate occurred at 1000 μmol photons·m 2·s 1 but drastically decreased with further increasing light intensity. Immunoblot analysis with phosphothreonine (Thr (P)) antibody indicated that D1/CP43 and D1/Cyt b 559 aggregates contained the phosphorylated protein(s). In vitro dephosphorylation experiment also showed that D1/Cyt b 559 and D1/CP43 aggregates lost the immunoreactivity with Thr (P) antibody after the phosphatase treatment of the membranes from high-light-illuminated leaves. Our results demonstrated that strong illumination of spinach leaves induced cross-linked products of D1 protein with its nearby polypeptides of PS, some of which co.n-tained the phosphorylated D1 protein.
The presence of phosphorylation form of D1 protein in its cross-linked aggregates in high light treated spinach leaves in vivo
Huimin Wei,Junwei Guo,Shuang Zhang,Bo Huang,Yinqiu Liu,Linfang Du
Chinese Science Bulletin , 2006, DOI: 10.1007/s11434-005-1529-3
Abstract: In the present study, using specific antibody against D1 protein, we detected four aggregates of D1 protein in thylakoid membranes from spinach leaves illuminated at high light (800–2500 μmol photons·m 2·s 1) for 3 h. Their accumulations were dependent on the light intensity to which the leaves had been subjected. Further immunoblot analysis indicated that 70 kD aggregate was a product of D1 protein cross-linked with CP43, 65 and 60 kD aggregate were two cross-linked products between D1 and D2 proteins, and 41 kD aggregate was one cross-linked D1 with α-subunit of cytochrome b 559 (Cyt b 559). This result provided the evidence for the existence of the aggregation of the D1 protein in vivo. The maximal level of D1/Cyt b 559 aggregate occurred at 1000 μmol photons·m 2·s 1 but drastically decreased with further increasing light intensity. Immunoblot analysis with phosphothreonine (Thr (P)) antibody indicated that D1/CP43 and D1/Cyt b 559 aggregates contained the phosphorylated protein(s). In vitro dephosphorylation experiment also showed that D1/Cyt b 559 and D1/CP43 aggregates lost the immunoreactivity with Thr (P) antibody after the phosphatase treatment of the membranes from high-light-illuminated leaves. Our results demonstrated that strong illumination of spinach leaves induced cross-linked products of D1 protein with its nearby polypeptides of PS, some of which co.n-tained the phosphorylated D1 protein.
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.
Analysis and Suggestions for Foreign Students’ Education Management System Improvement in China: Based on a Case Study of Shanghai  [PDF]
Canjing Ma, Yinqiu Ma
Open Journal of Social Sciences (JSS) , 2019, DOI: 10.4236/jss.2019.76009
Abstract: Education management for foreign children in primary and secondary schools has become an issue unignorably in promoting the internationalization of education in China. This paper clarifies the characteristics of the formalization of “learning in regular class” and the classification of foreign students’ education management through analyzing the foreign students’ admission policies formulated and promulgated by Shanghai Municipal Education Commission. Combined with analyses on the characteristics of the foreign students’ education management system in Japan’s primary and secondary schools, this paper proposed some improvement suggestions. For example, Shanghai should strengthen the construction of the Chinese language teaching system, actively promote the close cooperation between the education administrative departments at all levels and the schools while fully considering the diversity of foreign students to maintain their cultural characteristics.
College Teachers’ Soft Ability Indicator System and Measuring Methods  [PDF]
Fen Sun, Yinqiu Ma
Journal of Human Resource and Sustainability Studies (JHRSS) , 2019, DOI: 10.4236/jhrss.2019.72017
Abstract: The concept and features of college teachers’ soft abilities are defined. The features of College Teachers’ Soft Ability are: not easy to train and develop; talent’s deep characteristic; capable of effectively predict high working performance. The method to establish the Soft Ability indicator system is: to be sure about job requirements on hard abilities involving knowledge and technique via college teachers’ job analysis; then to use behavioral event interview to determine the essential condition of soft abilities related to high performance. The method to measure College Teachers’ Soft Abilities in recruitment and selection is to firstly change soft ability as specific work behavior, and then make measurement by methods of employment interview, evaluation and behavior observation.
Synthesis and Biological Evaluation of New Ligustrazine Derivatives as Anti-Tumor Agents
Penglong Wang,Gaimei She,Yanan Yang,Qiang Li,Honggui Zhang,Jie Liu,Yinqiu Cao,Xin Xu,Haimin Lei
Molecules , 2012, DOI: 10.3390/molecules17054972
Abstract: To discover new anti-cancer agents with multi-effect and low toxicity, a series of ligustrazine derivatives were synthesized using several effective anti-tumor ingredients of Shiquandabu Wan as starting materials. Our idea was enlightened by the “combination principle” in drug discovery. The ligustrazine derivatives’ anti-tumor activities were evaluated on the HCT-8, Bel-7402, BGC-823, A-549 and A2780 human cancer cell lines. In addition the angiogenesis activities were valued by the chick chorioallantoic membrane (CAM) assay. 1,7-bis(4-(3,5,6-Trimethylpyrazin-2-yl)-3-methoxyphenyl)-1,6-heptadiene-3,5-dione (4) and 3 α,12 α-dihydroxy-5β-dholanic acid-3,5,6-trimethylpyrazin-2-methyl ester (5) not only displayed antiproliferative activities on these cancer cells, but also dramatically suppressed normal angiogenesis in CAM. The LD50 value of the compound 5 exceeded 3.0 g/kg by oral administration in mice.
Enhanced Structural Complexity Index: An Improved Index for Describing Forest Structural Complexity  [PDF]
Philip Becksch?fer, Philip Mundhenk, Christoph Kleinn, Yinqiu Ji, Douglas W. Yu, Rhett D. Harrison
Open Journal of Forestry (OJF) , 2013, DOI: 10.4236/ojf.2013.31005
Abstract:

The horizontal distribution of stems, stand density and the differentiation of tree dimensions are among the most important aspects of stand structure. An increasing complexity of stand structure is often linked to a higher number of species and to greater ecological stability. For quantification, the Structural Complexity Index (SCI) describes structural complexity by means of an area ratio of the surface that is generated by connecting the tree tops of neighbouring trees to form triangles to the surface that is covered by all triangles if projected on a flat plane. Here, we propose two ecologically relevant modifications of the SCI: The degree of mingling of tree attributes, quantified by a vector ruggedness measure, and a stem density term. We investigate how these two modifications influence index values. Data come from forest inventory field plots sampled along a disturbance gradient from heavily disturbed shrub land, through secondary regrowth to mature montane rainforest stands in Mengsong, Xishuangbanna,Yunnan,China. An application is described linking structural complexity, as described by the SCI and its modified versions, to changes in species composition of insect communities. The results of this study show that the Enhanced Structural Complexity Index (ESCI) can serve as a valuable tool for forest managers and ecologists for describing the structural complexity of forest stands and is particularly valuable for natural forests with a high degree of structural

Detecting positive darwinian selection in brain-expressed genes during human evolution
XueBin Qi,Su Yang,HongKun Zheng,YinQiu Wang,ChengHong Liao,Ying Liu,XiaoHua Chen,Hong Shi,XiaoJing Yu,Alice A. Lin,Luca L. Cavalli-Sforza,Jun Wang,Bing Su
Chinese Science Bulletin , 2007, DOI: 10.1007/s11434-007-0062-y
Abstract: To understand the genetic basis that underlies the phenotypic divergence between human and non-human primates, we screened a total of 7176 protein-coding genes expressed in the human brain and compared them with the chimpanzee orthologs to identify genes that show evidence of rapid evolution in the human lineage. Our results showed that the nonsynonymous/synonymous substitution (K a/K s) ratio for genes expressed in the brain of human and chimpanzee is 0.3854, suggesting that the brain-expressed genes are under functional constraint. The X-linked human brain-expressed genes evolved more rapidly than autosomal ones. We further dissected the molecular evolutionary patterns of 34 candidate genes by sequencing representative primate species to identify lineage-specific adaptive evolution. Fifteen out of the 34 candidate genes showed evidence of positive Darwinian selection in human and/or chimpanzee lineages. These genes are predicted to play diverse functional roles in embryonic development, spermatogenesis and male fertility, signal transduction, sensory nociception, and neural function. This study together with others demonstrated the usefulness and power of phylogenetic comparison of multiple closely related species in detecting lineage-specific adaptive evolution, and the identification of the positively selected brain-expressed genes may add new knowledge to the understanding of molecular mechanism of human origin.
Detecting positive darwinian selection in brain-expressed genes during human evolution
QI XueBin,
QI
,XueBin,YANG,Su,ZHENG,HongKun,WANG,YinQiu,LIAO,ChengHong,LIU,Ying,CHEN,XiaoHua,SHI,Hong,YU,xiaoJing,Alice,A.,LIN,Luca,L.,CAVALLI-SFORZA,WANG,Jun,SU,Bing

科学通报(英文版) , 2007,
Abstract: To understand the genetic basis that underlies the phenotypic divergence between human and non- human primates, we screened a total of 7176 protein-coding genes expressed in the human brain and compared them with the chimpanzee orthologs to identify genes that show evidence of rapid evolution in the human lineage. Our results showed that the nonsynonymous/synonymous substitution (Ka/Ks) ratio for genes expressed in the brain of human and chimpanzee is 0.3854, suggesting that the brain-expressed genes are under functional constraint. The X-linked human brain-expressed genes evolved more rapidly than autosomal ones. We further dissected the molecular evolutionary patterns of 34 candidate genes by sequencing representative primate species to identify lineage-specific adaptive evolution. Fifteen out of the 34 candidate genes showed evidence of positive Darwinian selection in human and/or chimpanzee lineages. These genes are predicted to play diverse functional roles in em- bryonic development, spermatogenesis and male fertility, signal transduction, sensory nociception, and neural function. This study together with others demonstrated the usefulness and power of phy- logenetic comparison of multiple closely related species in detecting lineage-specific adaptive evolu- tion, and the identification of the positively selected brain-expressed genes may add new knowledge to the understanding of molecular mechanism of human origin.
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