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Search Results: 1 - 10 of 14062 matches for " Lianshun Jia "
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Foot Drop Caused by Lumbar Degenerative Disease: Clinical Features, Prognostic Factors of Surgical Outcome and Clinical Stage
Kun Liu, Wei Zhu, Jiangang Shi, Lianshun Jia, Guodong Shi, Yuan Wang, Ning Liu
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0080375
Abstract: Objective The purpose of this study was to analyze the clinical features and prognostic factors of surgical outcome of foot drop caused by lumbar degenerative disease and put forward the clinical stage. Methods We retrospectively reviewed 135 patients with foot drop due to lumbar degenerative disease. The clinical features and mechanism were analyzed. Age, sex, duration of palsy, preoperative muscle strength of tibialis anterior (TA), sensation defect of affected lower limb, affected foot, diagnosis and compressed nerve roots were recorded and compared with surgical outcome. Results Foot drop was observed in 8.1% of all inpatients of lumbar degenerative disease. L5 nerve root compression was observed in 126 of all 135 patients (93.3%). Single, double and triple roots compression was observed respectively in 43, 83, and 9 patients (31.9%, 61.5%, and 6.6%). But there was no significant relationship between preoperative muscle strength of TA and the number of compressed roots. The muscle strength of TA was improved in 113 (83.7%) patients after surgery, but it reached to >=4 in only 21 (15.6%) patients. Improvement of the muscle strength of TA was almost stable at the 6-month follow-up. At the last follow-up, the muscle strength of TA was 1, 2, 3, 4, 5 respectively in 28, 24, 62, 13, 8 patients. Multivariate logistic regression showed duration of palsy (p=0.0360, OR=2.543), preoperative muscle strength of TA (p=0.0064, OR=5.528) and age (p=0.0309, OR=3.208) were factors that influenced recovery following an operation. Conclusions L5 nerve root was most frequently affected. The muscle strength of TA improved in most patients after surgery, but few patients can get a good recovery from foot drop. Patients of shorter duration of palsy, better preoperative muscle strength of TA and younger age showed a better surgical outcome.
Over-Expression of PUMA Correlates with the Apoptosis of Spinal Cord Cells in Rat Neuropathic Intermittent Claudication Model
Bin Ma, Jiangang Shi, Lianshun Jia, Wen Yuan, Jianfeng Wu, Zhiyi Fu, Yuan Wang, Ning Liu, Zhengmao Guan
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0056580
Abstract: Background Neuropathic intermittent claudication (NIC) is a typical clinical symptom of lumbar spinal stenosis and the apoptosis of neurons caused by cauda equina compression (CEC) has been proposed as an important reason. Whereas, the factors and the mechanism involved in the process of apoptosis induced by CEC remain unclear. Methodology and Results In our modified rat model of NIC, a trapezoid-shaped silicon rubber was inserted into the epidural space under the L5 and L6 vertebral plate. Obvious apoptosis was observed in spinal cord cells after compression by TUNEL assay. Simultaneously, qRT-PCR and immunohistochemistry showed that the expression levels of PUMA (p53 up-regulated modulator of apoptosis) and p53 were upregulated significantly in spinal cord under compression, while the expression of p53 inhibitor MDM2 and SirT2 decreased in the same region. Furthermore, CEC also resulted in the upregulation of Bcl-2 pro-apoptotic genes expression and caspase-3 activation. With the protection of Methylprednisolone, the upregulation of PUMA and p53 expression as well as the decrease of MDM2 and SirT2 in spinal cord were partially rescued in western bolt analysis. Conclusions These results suggest that over-expression of PUMA correlates with CEC caused apoptosis of spinal cord cells, which is characterized by the increase of p53, Bax and Bad expression. PUMA upregulation might be crucial to induce apoptosis of spinal cord cells through p53-dependent pathway in CEC.

Xue Lingling,Wang Xinyu,Zhang Chunping,Zhu Mingyao,Zhang Lianshun,Chi Ronghua,Zhang Jiandong,Li Jia,Zhang Guangyin,Fu Guanghua,

光子学报 , 2000,
Abstract: The lightpropagation and distribution in single-layered bio-tissue are simulated by Monte Carlo method in this paper.The relationship between the distribution of photon number in bio-tissue and the vairation of layer thickness,g factor,the absorption coefficient,the scattering coefficient is presented.The reasons of these variations are analyzed.
Study on the Normal and Skewed Distribution of Isometric Grouping  [PDF]
Zhensheng Jia, WenKai Jia
Open Journal of Statistics (OJS) , 2012, DOI: 10.4236/ojs.2012.24056
Abstract: Because of thinking only the number of numbers but not fitting function, it would be adequate to take further afield when calculating group numbers with empirical formula. We have proved the three theorems based on studying the normal distribution, and then reach the conclusion that there is a better method to do the same work. The method is simpler and more practical than empirical method and also works well with any skewed distribution.
Existence of Ordered Solutions to Quasilinear Schr?dinger Equations with General Nonlinear Term  [PDF]
Jia Wu, Gao Jia
Journal of Applied Mathematics and Physics (JAMP) , 2018, DOI: 10.4236/jamp.2018.64068
In this paper, the existence of a pair of ordered solutions for the following class of equations in \"\" \"\" (1) was studied. A bounded (PS) (Palais-Smale) sequence was constructed and the related variational principle was used to prove the existence of the positive solution. The existence of the ordered solutions is finally found.
Approximate Kepler’s Elliptic Orbits with the Relativistic Effects  [PDF]
Leilei Jia
International Journal of Astronomy and Astrophysics (IJAA) , 2013, DOI: 10.4236/ijaa.2013.31004

Beginning with a Lagrangian, we derived an approximate relativistic orbit equation which describes relativistic corrections to Keplerian orbits. The critical angular moment to guarantee the existence of periodic orbits is determined. An approximate relativistic Kepler’s elliptic orbit is illustrated by numerical simulation via a second-order perturbation method of averaging.

Strategic Positioning: Key Point of Business Transformation
—Revelation of Xiangeqing’s Transition

Ying Jia
Open Journal of Social Sciences (JSS) , 2015, DOI: 10.4236/jss.2015.310010
Abstract: Explicit strategic positioning is the most important factor to motivate the development of an enterprise. Based on the specific condition for an enterprise, a unique strategy could be one competitive advantage for it. Furthermore, for the enterprises who want to change their traditional operating styles, a strategy that follows up with current environment is necessary. This essay tries to discuss the importance of specific and renewable strategic positioning based on the failed transformation of Xiangeqing and provide some suggestions for the main problems.
Coordination of Supply Chain under the Revenue Sharing-Advertising Cost Sharing Contract  [PDF]
Meng Jia
Journal of Service Science and Management (JSSM) , 2017, DOI: 10.4236/jssm.2017.103024
Abstract: In this article, we study a two-echelon supply chain with a single manufacturer and a single retailer. In the case of advertising investment affecting the market demand, we use the theory of game theory, and respectively discuss the coordination of general revenue sharing contract and revenue sharing-advertising cost sharing contract. The results show that: the general revenue sharing contract cannot achieve supply chain coordination. However, revenue sharing-advertising cost sharing contract in a specific form can achieve supply chain coordination. And in the appropriate revenue sharing contract parameters, it can also achieve a win-win situation between the two sides.
An Analysis of Practical Teaching System of College of Culture and Media: A Case Study of Sichuan University of Arts and Science  [PDF]
Xiaoxin Jia
Open Journal of Social Sciences (JSS) , 2018, DOI: 10.4236/jss.2018.69020
Abstract: Currently, there are three undergraduate majors in College of Culture and Media of Sichuan University of Arts and Sciences, namely, cultural industry management, broadcasting and hosting, and radio and television director. Those three majors are all applied ones, which require the improvement of practical teaching in the process of major construction and student cultivation. Practical teaching system is under construction in College of Culture and Media, which mainly consists of course practice, project practice, industry practice, social practice and competition practice.
Study on Regional Efficiency and Productivity of Guangdong Province
—Based on Hicks-Moorsteen TFP Index

Jia Miao
Modern Economy (ME) , 2018, DOI: 10.4236/me.2018.912134
Abstract: In this paper, Hicks-Moorsteen TFP index is employed to investigate regional efficiency and productivity of 21 cities in Guangdong province during 2000-2015. The findings demonstrate that the efficiency of the whole province first rises and then falls, and has rebounded in recent years. Technical efficiency and scope efficiency have increased, while regional scale efficiency has declined. The Pearl River Delta region has obvious competitive advantages, and scope efficiency alleviates the decline in the efficiency of the non PRD. Secondly, the results indicate that Shenzhen has strong regional development competitiveness, and the economic development efficiency which leads Guangdong province. Thirdly, although the total factor productivity of 21 cities in Guangdong province has increase 0.38 percent with an average level of 1.0165 during this period with a comparatively large fluctuation, the slow growth of technological progress hindered the progress of TFP to some extent. In addition, the TFP level in the PRD region has some advantages over the non PRD region. Finally, as the most efficient city, Shenzhen’s TFP level is in the middle and upper reaches and has great potential.
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