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Search Results: 1 - 10 of 26737 matches for " Hailan Jin "
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The p.q.-Baer Property of Fixed Rings under Finite Group Action  [PDF]
Ling Jin, Hailan Jin
Advances in Pure Mathematics (APM) , 2012, DOI: 10.4236/apm.2012.26059
Abstract: A ring R is called right principally quasi-Baer (simply, right p.q.-Baer) if the right annihilator of every principal right ideal of R is generated by an idempotent. For a ring R, let G be a finite group of ring automorphisms of R. We denote the fixed ring of R under G by RG. In this work, we investigated the right p.q.-Baer property of fixed rings under finite group action. Assume that R is a semiprime ring with a finite group G of X-outer ring automorphisms of R. Then we show that: 1) If R is G-p.q.-Baer, then RG is p.q.-Baer; 2) If R is p.q.-Baer, then RG are p.q.-Baer.
The (Quasi-)Baerness of Skew Group Ring and Fixed Ring  [PDF]
Hailan Jin, Qinxue Zhao
Advances in Pure Mathematics (APM) , 2011, DOI: 10.4236/apm.2011.16065
Abstract: In this paper, the (quasi-)Baerness of skew group ring and fixed ring is investigated. The following two results are obtained: if R is a simple ring with identity and G an outer automorphism group, then R G is a Baer ring; if R is an Artinian simple ring with identity and G an outer automorphism group, then RG is a Baer ring. Moreover, by decomposing Morita Context ring and Morita Context Theory, we provided several conditions of Morita Context ring, which is formed of skew group ring and fixed ring, to be (quasi-)Baer ring.
Four Mappings Satisfying Ψ-Contractive Type Condition and Having Unique Common Fixed Point on 2-Metric Spaces  [PDF]
Hailan Jin, Yongjie Piao
Advances in Pure Mathematics (APM) , 2013, DOI: 10.4236/apm.2013.32039

In this paper, we introduce a class Ψ of real functions defined on the set of non-negative real numbers, and obtain a new unique common fixed point theorem for four mappings satisfying Ψ-contractive condition on a non-complete 2-metric space and give the versions of the corresponding result for two and three mappings.

The p.q.-Baer Property of Skew Group Rings under Finite Group Action*  [PDF]
Bo Li, Hailan Jin
Advances in Pure Mathematics (APM) , 2013, DOI: 10.4236/apm.2013.38089

In this paper, Let R is a ring, G be a finite group of ring automorphisms of R. R*G denote the skew group ring of R under G. We investigate the right p.q.-Baer property of skew group rings under finite group action, Assume that R is a semiprime ring with a finite group G of X-outer ring automorphisms of R, then 1) R*G is p.q.-Baer if and only if R is G-p.q.-Baer; 2) if R is p.q.-Baer, then R*G is p.q.-Baer.

Fixed Points and Common Fixed Points of Quasi-Contractive Mappings on Partially Ordered-Cone Metric Spaces  [PDF]
Hailan Jin, Yongjie Piao
Applied Mathematics (AM) , 2014, DOI: 10.4236/am.2014.521321
Abstract: In this paper, we use the mappings with quasi-contractive conditions, defined on a partially ordered set with cone metric structure, to construct convergent sequences and prove that the limits of the constructed sequences are the unique (common) fixed point of the mappings, and give their corollaries. The obtained results improve and generalize the corresponding conclusions in references.
The Some Properties of Skew Polynomial Rings  [PDF]
Qianqian Chu, Hailan Jin
Advances in Pure Mathematics (APM) , 2016, DOI: 10.4236/apm.2016.67037
Abstract: This paper mainly studies some properties of skew polynomial ring related to Morita invariance, Armendariz and (quasi)-Baer. First, we show that skew polynomial ring has no Morita invariance by the counterexample. Then we prove a necessary condition that skew polynomial ring constitutes Armendariz ring. We lastly investigate that condition of skew polynomial ring is a (quasi)-Baer ring, and verify that the conditions is necessary, but not sufficient by example and counterexample.
Are Religious Affections Positive or Negative?—The Role of Religious Affections on Executive Control  [PDF]
Hailan Liu, Qin Zhang
Psychology (PSYCH) , 2013, DOI: 10.4236/psych.2013.412140

The present study investigated the influence of religious affections on executive control compared with positive and negative emotions using emotional priming paradigm and the letter flanker task. 58 participants (Tibetan Buddhists, 28 males and 30 females) were required to identify the central target letter after primed by religious, positive, or negative pictures. There was a space (loose) or no space (close) between neighboring letters. The results revealed that in close condition both religious affections-prime and negative emotional-prime reduced the flanker effect in response accuracy (ACC) compared to positive emotional-prime for female participants. It means that religious affections do not function as positive emotions on executive control. Moreover, for females, when primed by religious pictures, the ACC flanker effect was negatively related to the arousal of religious pictures, but when primed by negative pictures, the flanker effect in response time was positively related to the valence of negative pictures. The correlation analysis indicates that religious affections and negative emotions may influence executive control in different ways. These findings suggest that religious affections exert their special influence on executive control, not simply positive or negative.

Effect of Plant Roots on Soil Nutrient Distributions in Shanghai Urban Landscapes  [PDF]
Jing Liang, Hailan Fang, Guanjun Hao
American Journal of Plant Sciences (AJPS) , 2016, DOI: 10.4236/ajps.2016.72029
Abstract: Twenty-seven surface soil samples were collected from four landscape sites in Shanghai, and seven soil profile samples were gathered from the two older sites for evaluation of horizontal and vertical distribution of soil properties to reveal their relationship with plant roots. Results indicated that urban soil had significant heterogeneities. Soil total nitrogen was significantly correlated with organic matter and total potassium was more abundant than total phosphorus. The available contents of iron, manganese, zinc and copper were higher than the standards for plant growth established by Soltanpour. pH and electrical conductivity increased with increasing soil vertical depth, possibly due to leaching, while the nutrients limiting plant growth such as nitrogen, phosphorus, potassium, iron, copper and zinc had more shallow distributions due to absorption by plant roots. However, with the increasing of soil depth, contents of magnesium, sodium, sulfur and chloride increased due to leaching and bio-cycling, which was further shown by the correlation analysis.
Optimality Condition of a Class of Arc Connected Function
Hailan Fu,Xiaojun Lei
Journal of Mathematics Research , 2010, DOI: 10.5539/jmr.v2n3p188
Abstract: In the condition that the real valued function f : S ? R is a arc connected function in arc connected set S ? Rn, this paper give the definition of generalized arc connected function. The class function is the promotion of convex function which satisfies identified local-global extremum property. Conversely, under certain conditions. the function meeting local-global extremum property must be one of those generalized functions. Also, the optimality sufficient condition of minx?S f (x), s.t.g(x) ? 0 is obtained under generalized connected assumption.
Phosphatidylcholine induces apoptosis of 3T3-L1 adipocytes
Hailan Li, Jong-Hyuk Lee, Su Yeon Kim, Hye-Young Yun, Kwang Jin Baek, Nyoun Soo Kwon, Yoosik Yoon, Ji Hoon Jeong, Dong-Seok Kim
Journal of Biomedical Science , 2011, DOI: 10.1186/1423-0127-18-91
Abstract: The viability of 3T3-L1 pre-adipocytes and differentiated 3T3-L1 cells was measured after treatment of PPC alone, its vehicle sodium deoxycholate (SD), and a PPC formulation. Western blot analysis was performed to examine PPC-induced signaling pathways.PPC, SD, and PPC formulation significantly decreased 3T3-L1 cell viability in a concentration-dependent manner. PPC alone was not cytotoxic to CCD-25Sk human fibroblasts at concentrations <1 mg/ml, whereas SD and PPC formulation were cytotoxic. Western blot analysis demonstrated that PPC alone led to the phosphorylation of the stress signaling proteins, such as p38 mitogen-activated protein kinase and c-Jun N-terminal kinase, and activated caspase-9, -8, -3 as well as cleavage of poly(ADP-ribose) polymerase. However, SD did not activate the apoptotic pathways. Instead, SD and PPC formulation induced cell membrane lysis, which may lead to necrosis of cells.PPC results in apoptosis of 3T3-L1 cells.Mesotherapy is a new technique of injecting drugs into the mesoderm for the treatment of local conditions [1]. This method allows the use of increased concentration of drugs and can produce greater treatment effects. Mesotherapy has been used for many infirmities, such as fat emboli, chronic pain, hyperlipidemia, and liver problems [2]. Phosphatidycholine (PPC) formulation has been widely-used to dissolve local fat deposits as a safe nonsurgical alternative to liposuction [3]. Many clinical studies have reported that the subcutaneous injection of PPC formulation reduces fat [3-5]. Although the biochemical mechanisms are very poorly studied, it has been suggested that no enzymatic lipolytic pathway is involved [6]. Thus, it is thought that the PPC formulation dissolves local fat deposits in a nonspecific manner [7]. PPC formulation has not been approved by the Food and Drug Administration (FDA) for use in lipodissolution.PPC is a lecithin-derived phospholipid [4], which is widely-distributed in human cell membranes [8]. The Lan
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