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Search Results: 1 - 10 of 37239 matches for " YAN Yuping "
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Empirical Study of Influential Factors of Online Customers’ Repurchase Intention  [PDF]
Yuping Li
iBusiness (IB) , 2016, DOI: 10.4236/ib.2016.83006
Abstract: There is not a unanimous conclusion about the influential elements of online customers’ repurchase intention. We established a concept model and discussed how utilitarian values (perceived ease of use and perceived usefulness), social values (satisfaction and trust) and the hedonic value (perceived enjoyment) directly and indirectly influenced customers’ repurchase intention in the context of online shopping. It adapted questionnaire to collect data and testified the hypothesis by structural equation model. The results showed that perceived usefulness, online customers’ satisfaction and perceived enjoyment had significantly positive impact on online customers’ repurchase intention. Moreover, we found that compared with utilitarian factors, the hedonic factor had a stronger positive impact on repurchase intention.
An Empirical Analysis of the Impact of RMB Exchange Rate Fluctuation on Textile and Clothing Export of Guangdong  [PDF]
Yuping Su
Chinese Studies (ChnStd) , 2017, DOI: 10.4236/chnstd.2017.62007
Abstract: The main purpose of this paper is to analyze if RMB appreciation is the reason for the decline of Guangdong textile and garment exports and how to make textile and garment industry of Guangdong province break through the bottleneck of development, so as to achieve a qualitative leap in the context of the RMB exchange rate fluctuations and rising production costs. Five parts are included, the first part is introduction, which elaborates the research significance and literature review; the second part is about data and research methods; the third part is an empirical analysis of the impact of RMB exchange rate fluctuation on textile and clothing export of Guangdong; the fourth part is the conclusion analysis, while the last part are policy suggestion, which includes three aspects, government industry and enterprise themselves. In theory, the appreciation of the exchange rate will reduce the export price advantage to reduce exports. However, in this paper, the VAR and VEC models were constructed by using the monthly data of Guangdong textile and clothing export (LNEX), RMB real exchange rate (LNER) and purchasing price index (LNPPI) in 2007-2014, finding that Although LNEX has a co-integration relationship with LNER in the long run, LNER is not the Granger Cause of LNEX, while LNPPI passes the test of causality; Impulse response curves show that LNER has a negative impact on LNEX in the short term, while there is no shock effect for a long time; Variance decomposition analysis shows that contribution of LNER to LNEX was 0, both in the long term and short term, while the long-term contribution of LNPPI to LNEX is about 8%.
Climate change over the Yarlung Zangbo River Basin during 1961–2005

YOU Qinglong,KANG Shichang,WU Yanhong,YAN Yuping,

地理学报 , 2007,
Abstract: The Yarlung Zangbo River (YR) is the highest great river in the world, and its basin is one of the centers of human economic activity in Tibet. Using 10 meteorological stations over the YR basin in 1961–2005, the spatial and temporal characteristics of temperature and precipitation as well as potential evapotranspiration are analyzed. The results are as follows. (1) The annual and four seasonal mean air temperature shows statistically significant in-creasing trend, the tendency is more significant in winter and fall. The warming in Lhasa river basin is most significant. (2) The precipitation is decreasing from the 1960s to the 1980s and increasing since the 1980s. From 1961 to 2005, the annual and four seasonal mean precipi-tation is increasing but not statistically significant, especially in fall and spring. The increasing precipitation rates are more pronounced in Niyangqu and Palong Zangbo river basins, the closer to the upper YR is, the less precipitation increasing rate would be. (3) The annual and four seasonal mean potential evapotranspiration has decreased, especially after the 1980s, and most of it happens in winter and spring. The decreasing trend is most significant in the middle YR and Nianchu river basin. (4) Compared with the Mt. Qomolangma region, Tibetan Plateau, China and global average, the magnitudes of warming trend over the YR basin since the 1970s exceed those areas in the same period, and compared with the Tibetan Plateau, the magnitudes of precipitation increasing and potential evapotranspiration decreasing are larger, suggesting that the YR basin is one of the most sensitive areas to global warming.
Alternative expression of TCRζ related genes in patients with chronic myeloid leukemia
Zha Xianfeng,Yan Xiaojuan,Shen Qi,Zhang Yuping
Journal of Hematology & Oncology , 2012, DOI: 10.1186/1756-8722-5-74
Abstract: A previous study has demonstrated a significant decrease in the TCRζ gene expression level in chronic myeloid leukemia (CML); thus, we further investigated the expression of TCRζ-regulating factors, the distribution of the TCRζ 3' untranslated region (3'-UTR) splice variants, and the expression level and correlation of the alternative splicing factor/splicing factor 2 (ASF/SF-2), FcεRIγ and ZAP-70 genes. TCRζ 3'-UTR splice variants were identified in peripheral blood mononuclear cells (PBMCs) from 14 healthy individuals, 40 patients with CML and 22 patients with CML in complete remission (CML-CR) by RT-PCR. The expression level of the TCRζ, FcεRIγ, ASF/SF-2 and ZAP-70 genes was analyzed by real-time quantitative PCR. While the expression of TCRζ gene in the CML group was significantly lower than that in the healthy individual and CML-CR groups, a significantly higher expression of the FceRIγ and ASF/SF-2 genes was found in the CML group. Two types of splicing forms were detected in all of the healthy individual CML-CR cases: wild type (WT) TCRζ 3'-UTR and alternatively splieced (AS) TCRζ 3'-UTR which have been alternatively splieced in the WT TCRζ 3'-UTR . However, 35% of the CML cases contained only the wild type TCRζ 3'-UTR isoform. Based on the TCRζ 3'-UTR isoform expression characteristic, we divided the patients with CML into two subgroups: the WT+AS- CML group, containing patients that express only the wild type TCRζ 3'-UTR, and the WT+AS+ CML group, which contained patients that expressed two TCRζ 3'-UTR isoforms. A significantly different ASF/SF-2 and FcεRIγ gene expression pattern was found between the WT+AS- and WT+AS+CML groups. We concluded that defective TCRζ expression may be characterized in the WT+AS-and WT+AS+CML subgroups by the different gene expression pattern. The overexpression of ASF/SF2, which alternatively splices the TCRζ 3’-UTR, is thought to participate in feedback regulation. The characteristics of TCRζ 3'-UTR alternative splicing may be a novel immunological marker for the evaluation of the CML immune status.
An Evolutionary Algorithm Based on a New Decomposition Scheme for Nonlinear Bilevel Programming Problems  [PDF]
Hecheng LI, Yuping WANG
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2010, DOI: 10.4236/ijcns.2010.31013
Abstract: In this paper, we focus on a class of nonlinear bilevel programming problems where the follower’s objective is a function of the linear expression of all variables, and the follower’s constraint functions are convex with respect to the follower’s variables. First, based on the features of the follower’s problem, we give a new decomposition scheme by which the follower’s optimal solution can be obtained easily. Then, to solve efficiently this class of problems by using evolutionary algorithm, novel evolutionary operators are designed by considering the best individuals and the diversity of individuals in the populations. Finally, based on these techniques, a new evolutionary algorithm is proposed. The numerical results on 20 test problems illustrate that the proposed algorithm is efficient and stable.
A New Preconditioner with Two Variable Relaxation Parameters for Saddle Point Linear Systems with Highly Singular(1,1) Blocks  [PDF]
Yuping Zeng, Chenliang Li
American Journal of Computational Mathematics (AJCM) , 2011, DOI: 10.4236/ajcm.2011.14030
Abstract: In this paper, we provide new preconditioner for saddle point linear systems with (1,1) blocks that have a high nullity. The preconditioner is block triangular diagonal with two variable relaxation paremeters and it is extension of results in [1] and [2]. Theoretical analysis shows that all eigenvalues of preconditioned matrix is strongly clustered. Finally, numerical tests confirm our analysis.
Research on Mechanism of Distributors’ Frequent Ordering Intention: A Prospect Theory Perspective  [PDF]
Bingqun Cui, Yuping Li
Modern Economy (ME) , 2015, DOI: 10.4236/me.2015.611110
Abstract: This article is to carry out in-depth mechanism exploration of influences of three different price promotion strategies on Distributors’ ordering intentions. This research finds out that Distributors have stronger intentions of determining ordering in the case of reward promotion rather than in threat promotion. However, among Distributors who have decided ordering, threat promotion can lead to stronger frequent ordering intention. Promotion intensity has strong adjustment effect on Distributors’ ordering intention both in reward and threat promotions. Rebates strategy has positive influence on Distributors’ intentions of both determining ordering and frequent ordering. The study reveals different price promotion strategies’ different influences on Distributors’ ordering intentions. This study provides a good reference for guiding enterprise managers’ application of price promotion.
Existence and Stability Analysis of Fractional Order BAM Neural Networks with a Time Delay  [PDF]
Yuping Cao, Chuanzhi Bai
Applied Mathematics (AM) , 2015, DOI: 10.4236/am.2015.612181
Abstract: Based on the theory of fractional calculus, the contraction mapping principle, Krasnoselskii fixed point theorem and the inequality technique, a class of Caputo fractional-order BAM neural networks with delays in the leakage terms is investigated in this paper. Some new sufficient conditions are established to guarantee the existence and uniqueness of the nontrivial solution. Moreover, uniform stability of such networks is proposed in fixed time intervals. Finally, an illustrative example is also given to demonstrate the effectiveness of the obtained results.
Acute Myocardial Infarction in a 26-Year-Old Man with Normal ST-Segment  [PDF]
Yuping Yang, Hua Chen
Case Reports in Clinical Medicine (CRCM) , 2017, DOI: 10.4236/crcm.2017.66015
Abstract: Acute myocardial infarction (AMI) is rare in young adults. The management of these patients is considered as a clinical challenge. We report the case of a 26-year-old man who was presented to the Emergency Room of Affiliated Hospital of Guilin Medical University with an acute onset of chest pain. Initially electrocardiogram (ECG) with no evidence of ST-segment abnormalities but QT prolongation a signal of sudden cardiac death, 20 minutes later, it revealed ST-segment elevation myocardial infarction (STEMI). Coronary angiography (CAG) demonstrated left main coronary artery occlusion. AMI was diagnosed based on clinical symptom, elevated cardiac biomarkers, electrocardiographic dynamic monitoring and CAG. The awareness of chest pain as possible underlying AMI symptom—especially in young patients presenting with QT prolongation—is crucial for clinical treatment, as a missed diagnosis can worsen the patient’s further prognosis. In addition, reperfusion arrhythmia is a challenge to short-term outcomes of young patients with AMI, so it is necessary to make preoperative risk stratification.
A Survey of Gratitude Awareness of Chinese College Students  [PDF]
Xiaojuan Li, Yuping Li
Psychology (PSYCH) , 2017, DOI: 10.4236/psych.2017.814154
Abstract: By doing a questionnaire survey of the gratitude awareness situation among the students of one university in Guangzhou, we had an overview of the gratitude awareness of the students. Based on this survey, it is advocated that college students’ gratitude education should be promoted on the basis of Chinese traditional cultural education; disadvantaged students should be paid more attention; teachers should set good examples; and the gratitude education should be enriched to make it more social; etc.
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