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Search Results: 1 - 10 of 24802 matches for " Ling Qin "
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Integration of Traditional Chinese Medicine and modern medicine promotes the unification of human medicine
Peng Zhang,Ling Qin
Iranian Journal of Medical Hypotheses & Ideas , 2010,
Abstract: "nThere are two mutually supportive systems in medical profession: modern medicines and traditional medicine. The current status is that although the modern medicine occupies the major position in healthcare system, the therapeutic effect of traditional medicines should not be omitted. If all of them merged and unified as one, it will be beneficial to the development of human medicine. In this paper, the integration of Traditional Chinese Medicine (TCM) and modern medicine was exemplified to elucidate the mutual complements, mutual benefits of traditional medicines and modern medicine to maintain the unification of human medicine via the development of molecular biology, cytology etc. We believed that TCM theory may share the same mechanism with western medicine at some extent which need to be explored in the future research. In our point of view, although the road may twist and turn, the results are promising.
Effect of the pseudogap on the infrared response in cuprate superconductors
Ling Qin,Jihong Qin,Shiping Feng
Physics , 2014, DOI: 10.1080/09500839.2014.916424
Abstract: One of the most essential aspects of cuprate superconductors is a large pseudogap coexisting with a superconducting gap, then some anomalous properties can be understood in terms of the formation of the pseudogap. Within the kinetic energy driven superconducting mechanism, the effect of the pseudogap on the infrared response of cuprate superconductors in the superconducting-state is studied. By considering the interplay between the superconducting gap and pseudogap, the electron current-current correlation function is evaluated based on the linear response approach and it then is employed to calculate finite-frequency conductivity. It is shown that in the underdoped and optimally doped regimes, the transfer of the part of the low-energy spectral weight of the conductivity spectrum to the higher energy region to form a midinfrared band is intrinsically associated with the presence of the pseudogap.
Pseudogap and charge dynamics in doped cuprates
Ling Qin,Jihong Qin,Shiping Feng
Physics , 2013, DOI: 10.1016/j.physc.2013.11.008
Abstract: Within the microscopic theory of the normal-state pseudogap state, the doping and temperature dependence of the charge dynamics in doped cuprates is studied in the whole doping range from the underdoped to heavily overdoped. The conductivity spectrum in the underdoped and optimally doped regimes contains the low-energy non-Drude peak and unusual midinfrared band. However, the position of the midinfrared band shifts towards to the low-energy non-Drude peak with increasing doping. In particular, the low-energy non-Drude peak incorporates with the midinfrared band in the heavily overdoped regime, and then the low-energy Drude behavior recovers. It is shown that the striking behavior of the low-energy non-Drude peak and unusual midinfrared band in the underdoped and optimally doped regimes is closely related to the emergence of the doping and temperature dependence of the normal-state pseudogap.
Targeting the osteosarcoma cancer stem cell
Valerie A Siclari, Ling Qin
Journal of Orthopaedic Surgery and Research , 2010, DOI: 10.1186/1749-799x-5-78
Abstract: Osteosarcoma is the most common type of solid bone cancer, mainly arising in children and young adults. About 6 in every million children and 2 in every million adults will develop osteosarcoma [1]. Osteosarcomas most commonly develop in the long bones, in particular the distal femur and proximal tibia. They are often very aggressive (high-grade tumors) with about 20% of patients presenting with metastases. Osteosarcomas most commonly metastasize to the lung but also can metastasize locally to other sites within the bone. Osteosarcomas are characterized as tumors that produce osteoid. By X-ray, osteosarcomas often appear as tumors associated with mixed osteolytic and osteoblastic bone destruction and a soft tissue mass. They can be histologically classified into three types: osteoblastic, chondroblastic, and fibroblastic (reviewed in [2,3]). Microarray analysis has revealed that there are significant gene expression differences amongst the sub-types. 172 genes were differentially expressed between osteoblastic and non-osteoblastic osteosarcomas [4].Osteosarcoma is believed to arise from mesenchymal stem cells (MSCs) or osteoprogenitor cells due to a disruption in the osteoblast differentiation pathway [5,6]. Genetic instability has made identifying the cause(s) of osteosarcoma development difficult [7]. A number of pathways and inactivating mutations have been proposed to play a role in osteosarcoma development including downregulation of the Wnt signaling pathway and inactivating mutations in p53 and retinoblastoma. However, none of these pathways/mutations have been implicated as main causes of osteosarcoma [2,6,8]. Paget's disease and prior irradiation are also risk factors for osteosarcoma [9]. In a study comparing the gene expression of 22 human osteosarcoma tumors to 5 normal human osteoblasts, osteosarcoma tumors had increased expression of RECQL4, SPP1, RUNX2, and IBSP and decreased DOCK5, CDKN1A, RB1, P53, AND LSAMP compared to normal osteoblasts. Increased
Doping dependence of Meissner effect in triangular-lattice superconductors
Ling Qin,Xixiao Ma,Lulin Kuang,Jihong Qin,Shiping Feng
Physics , 2015, DOI: 10.1007/s10909-015-1329-3
Abstract: In the spin-excitation-mediated pairing mechanism for superconductivity, the geometric frustration effects not only the spin configuration but also the superconducting-state properties. Within the framework of the kinetic-energy-driven superconducting mechanism, the doping and temperature dependence of the Meissner effect in triangular-lattice superconductors is investigated. It is shown that the magnetic-field-penetration depth exhibits an exponential temperature dependence due to the absence of the d-wave gap nodes at the Fermi surface. However, in analogy to the dome-like shape of the doping dependence of the superconducting transition temperature, the superfluid density increases with increasing doping in the lower doped regime, and reaches a maximum around the critical doping, then decreases in the higher doped regime.
Open-MP and Parallel Programming
Open-MP与并行程序设计

CHEN Ling CHEN Hong-Jian QIN Ling,

计算机科学 , 2003,
Abstract: The application programming interface Open-MP for the shared memory parallel computer system and its characteristics are illustrated. We also compare Open-MP with parallel programming tool MPI.To overcome the disadvantage of large overhead in Open-MP program,several optimization methods in Open-MP programming are presented to increase the efficiency of its execution.
Antibodies against outer-capsid proteins of grass carp reovirus expressed in E. coli are capable of neutralizing viral infectivity
Ling Shao, Xiaoyun Sun, Qin Fang
Virology Journal , 2011, DOI: 10.1186/1743-422x-8-347
Abstract: Recombinant plasmids of GCRV outer capsid proteins VP5 and VP7 were constructed and expressed in prokaryotic cells in our previous work. In this study, we prepared GCRV Antibody (Ab), VP5Ab and VP7Ab generated from purified native GCRV, recombinant VP5 and VP7 respectively. Immunoblotting analysis showed that the prepared antibodies were specific to its antigens. In addition, combined plaque and cytopathic effect (CPE)-based TCID50 (50% tissue culture infective dose) assays showed that both VP5Ab and VP7Ab were capable of neutralizing viral infectivity. Particularly, the neutralizing activity of VP7Ab was 3 times higher than that of VP5Ab, suggesting that VP7 might be a dominating epitope. Moreover, the combination of VP5Ab and VP7Ab appeared to enhance GCRV neutralizing capacity.The results presented in this study indicated that VP7 protein was the major epitope of GCRV. Furthermore, VP5Ab and VP7Ab in combination presented an enhanced capacity to neutralize the GCRV particle, suggesting that the VP5 and VP7 proteins may cooperate with each other during virus cell entry. The data can be used not only to further define the surface epitope domain of GCRV but may also be applicable in the designing of vaccines.Grass carp reovirus (GCRV), a member of genus Aquareovirus in the family Reoviridae[1], was the first viral pathogen to be identified from aquatic animals in China; this virus was identified twenty years ago during an acute epidemic characterized by symptoms of hemorrhagic disease in fingerling and yearling grass carp [2,3]. In an attempt to control the spread of this disease, progress has been made using a crude inactive vaccine preparation, but the agent is far from being effective in the prevention of GCRV viral infection. In addition, GCRV has been recognized as the most pathogenic of the isolated aquareoviruses reported to date [4,5]. Therefore, it is important to develop an effective vaccine for better prevention and control of fatal outbreaks of hemorrhag
The Design and Experiments on Corner Reflectors for Urban Ground Deformation Monitoring in Hong Kong
Yuxiao Qin,Daniele Perissin,Ling Lei
International Journal of Antennas and Propagation , 2013, DOI: 10.1155/2013/191685
Abstract:
Stable Matching with Incomplete Information in Structured Networks
Ying Ling,Tao Wan,Zengchang Qin
Computer Science , 2015,
Abstract: In this paper, we investigate stable matching in structured networks. Consider case of matching in social networks where candidates are not fully connected. A candidate on one side of the market gets acquaintance with which one on the heterogeneous side depends on the structured network. We explore four well-used structures of networks and define the social circle by the distance between each candidate. When matching within social circle, we have equilibrium distinguishes from each other since each social network's topology differs. Equilibrium changes with the change on topology of each network and it always converges to the same stable outcome as complete information algorithm if there is no block to reach anyone in agent's social circle.
Construction and Control of Genetic Regulatory Networks:A Multivariate Markov Chain Approach  [PDF]
Shu-Qin Zhang, Ling-Yun Wu, Wai-Ki Ching, Yue Jiao, Raymond, H. Chan
Journal of Biomedical Science and Engineering (JBiSE) , 2008, DOI: 10.4236/jbise.2008.11003
Abstract: In the post-genomic era, the construction and control of genetic regulatory networks using gene expression data is a hot research topic. Boolean networks (BNs) and its extension Probabilistic Boolean Networks (PBNs) have been served as an effective tool for this purpose. However, PBNs are difficult to be used in practice when the number of genes is large because of the huge computational cost. In this paper, we propose a simplified multivariate Markov model for approximating a PBN The new model can preserve the strength of PBNs, the ability to capture the inter-dependence of the genes in the network, qnd at the same time reduce the complexity of the network and therefore the computational cost. We then present an optimal control model with hard constraints for the purpose of control/intervention of a genetic regulatory network. Numerical experimental examples based on the yeast data are given to demonstrate the effectiveness of our proposed model and control policy.
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