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Search Results: 1 - 10 of 38013 matches for " Jie Shi "
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Advances in diagnosis and treatment of pulmonary infection with Acinetobacter
Medical Journal of Chinese People's Liberation Army , 2011,
Abstract: Acinetobacter,especially Acinetobacter baumannii has emerged in recent years as a major cause of nosocomial infections,especially in intensive care units(ICUs),due to its multidrug-resistance(MDR) even pan-drug-resistance(PDR) characteristics.Acinetobacter infection may lead to high mortality,and it is serious and detrimental to patients.In the year 2009,CHINET antimicrobial surveillance showed that lung was the most commonly infected organ,and SENTRY antimicrobial surveillance showed that Acinetobacter had become the top fifth cause of hospital-acquired pneumonia(HAP),and its antibiotic resistance had gradually increased in these years.Colonization or infection of Acinetobacter should be determined at once when the bacteria were detected from culture of respiratory secretions.Generally,antibacterial treatment is not recommended if no clinical symptoms appear or imaging evidence unavailable.Since the resistance rate of Acinetobacter baumannii to most of the antibiotics reached 50% and above,an effective antibiotics should be carefully selected based on susceptibility test.Sulbactam or sulbactam-based composition is recommended for the carbapenem-resistant bacteria infection,particularly for infections caused by pan-resistant strains.As the first glycylcycline was approved to use in clinic,the anti-bacterial activity of Tigecycline against anti-carbapenem-resistant Acinetobacter has already been proven in vitro.In addition,the most important measure in controlling Acinetobacter pneumonia is to prevent the outbreak of Acinetobacter in medical institutions.
Pingfei Mixture's two-way adjustment to cell proliferation in mice with tumor
ZHU Shi-Jie
Zhong Xi Yi Jie He Xue Bao , 2003,
Abstract: Objective: To study the antineoplastic mechanism of Pingfei Mixture. Methods: Thirty C57BL mice bearing Lewis pulmonary carcinoma were randomly divided into 3 groups: saline control group, Pingfei Mixture group and cisplatin group. Fifteen days later, tumor tissues and spleens were taken out and made into unicellular suspension. Argyrophil staining was taken to carcinoma cells and cultured T cells. KL-2 style cell image analysis system was used to analyze the rate between AgNORs and nuclear region (I.S). Results: There were dense brownish-black granules in tumor cell nuclear of saline control group. The brownish-black granules of Pingfei Mixture group and cisplatin group were less than those of saline control group. The differences of T cell I.S in these three groups were significant. The I.S of Pingfei Mixture was higher than that of the other groups, and the I.S of the cisplatin group was the lowest. Conclusion: Pingfei Mixture can inhibit tumor cell proliferation, although the effect is inferior to cisplatin. Pingfei Mixture can also promote T cell proliferation and its effect was superior to cisplatin.
Clinical evaluation of the efficacy of external therapies of traditional Chinese medicine in treatment of cancer pain
Shi-jie Zhu
Zhong Xi Yi Jie He Xue Bao , 2011,
Abstract: : There lack scientific methods for evaluating the treatment of cancer pain with external therapies of traditional Chinese medicine (TCM). The level of clinical study in this field needs to be improved. The authors assert that when external therapies of TCM are applied to treat cancer pain, different types of cancer pain should be distinguished and treatment should be applied according to such a differentiation. Under this framework scientific evaluation can be conducted. The authors also assert that the findings of randomized, blinded and controlled trials should be given particular attention, and it is necessary to include titration of morphine into clinical trails of external therapies for the treatment of cancer pain, not only complying with the three-ladder principle for treating cancer pain suggested by the World Health Organization, but also not influencing the effect evaluation of external therapies of TCM on cancer pain. Patient diaries recording pain were revised as observation indexes. The primary indicator of efficacy was the pain intensity score and the secondary indicators were the equivalent of morphine and the remission rate of pain. The time to onset, remission duration and comparison of assessment of pain influence can mirror the characteristics of external therapies of TCM on cancer pain.
Scaling law in target-hunting processes
Shi-Jie Yang
Physics , 2004, DOI: 10.1103/PhysRevE.69.056101
Abstract: We study the hunting process for a target, in which the hunter tracks the goal by smelling odors it emits. The odor intensity is supposed to decrease with the distance it diffuses. The Monte Carlo experiment is carried out on a 2-dimensional square lattice. Having no idea of the location of the target, the hunter determines its moves only by random attempts in each direction. By sorting the searching time in each simulation and introducing a variable $x$ to reflect the sequence of searching time, we obtain a curve with a wide plateau, indicating a most probable time of successfully finding out the target. The simulations reveal a scaling law for the searching time versus the distance to the position of the target. The scaling exponent depends on the sensitivity of the hunter. Our model may be a prototype in studying such the searching processes as various foods-foraging behavior of the wild animals.
Target-searching on the percolation
Shi-Jie Yang
Physics , 2005, DOI: 10.1088/6102/44/3/431
Abstract: We study target-searching processes on a percolation, on which a hunter tracks a target by smelling odors it emits. The odor intensity is supposed to be inversely proportional to the distance it propagates. The Monte Carlo simulation is performed on a 2-dimensional bond-percolation above the threshold. Having no idea of the location of the target, the hunter determines its moves only by random attempts in each direction. For lager percolation connectivity $p\gtrsim 0.90$, it reveals a scaling law for the searching time versus the distance to the position of the target. The scaling exponent is dependent on the sensitivity of the hunter. For smaller $p$, the scaling law is broken and the probability of finding out the target significantly reduces. The hunter seems trapped in the cluster of the percolation and can hardly reach the goal.
Exploring complex networks by walking on them
Shi-Jie Yang
Physics , 2004, DOI: 10.1103/PhysRevE.71.016107
Abstract: We carry out a comparative study on the problem for a walker searching on several typical complex networks. The search efficiency is evaluated for various strategies. Having no knowledge of the global properties of the underlying networks and the optimal path between any two given nodes, it is found that the best search strategy is the self-avoid random walk. The preferentially self-avoid random walk does not help in improving the search efficiency further. In return, topological information of the underlying networks may be drawn by comparing the results of the different search strategies.
Effect of a tilted magnetic field on the orientation of Wigner crystals
Shi-Jie Yang
Physics , 2005, DOI: 10.1088/0953-8984/16/41/017
Abstract: We study the effect of a tilted magnetic field on the orientation of Wigner crystals by taking account of the width of a quantum well in the $z$-direction. It is found that the cohesive energy of the electronic crystal is always lower for the $[110]$ direction parallel to the in-plane field. In a realistic sample, a domain structure forms in the electronic solid and each domain orients randomly when the magnetic field is normal to the quantum well. As the field is tilted an angle, the electronic crystal favors to align along a preferred direction which is determined by the in-plane magnetic field. The orientation stabilization is strengthened for wider quantum wells as well as for larger tilted angles. Possible consequence of the tilted field on the transport property in the electronic solid is discussed.
Evaluation of Different Electronic Product Code Discovery Service Models  [PDF]
Su Mon Kywe, Jie Shi, Yingjiu Li, Raghuwanshi Kailash
Advances in Internet of Things (AIT) , 2012, DOI: 10.4236/ait.2012.22005
Abstract: Electronic Product Code Discovery Service (EPCDS) is an important concept in supply chain processes and in Internet of Things (IOT). It allows supply chain participants to search for their partners, communicate with them and share product information using standardized interfaces securely. Many researchers have been proposing different EPCDS models, considering different requirements. In this paper, we describe existing architecture designs of EPCDS systems, namely Directory Service Model, Query Relay Model and Aggregating Discovery Service Model (ADS). We also briefly mention Secure Discovery Service (SecDS) Model, which is an improved version of Directory Service Model with a secure attribute-based access control mechanism. Then, we analyze the strengths and limitations of these models, by comparing based on non-functional features such as data ownership, confidentiality, business relationship independence, availability, reliability, implementation complexity, visibility, and scalability. From the analysis results, we have a better understanding of which model is more suitable in what kinds of situations or scenarios. Moreover, we suggest possible improvements and identify possible future add-on applications to SecDS model in the paper.
A Programmable High Speed Vision System with Superscalar PE and Its Parallel Computing Language  [PDF]
Jie Yang, Cong Shi, Xitian Long, Nanjian Wu
Open Journal of Applied Sciences (OJAppS) , 2013, DOI: 10.4236/ojapps.2013.31B013
Abstract: Pixel-parallel PE and SIMD architectures are widely used in high-speed image processing to enhance computing power. With fully exploiting the data level parallelism of low- and middle-level image processing, SIMD architecture is able to finish great amount of computation with much less instruction cycle thus satisfy the high-speed system requirement. The main computation parts in those SIMD image processing hardware is known as PE (processing element) and it is responsible for transferring, storing and processing the image data. This paper describes a high-speed vision system with superscalar PE to enhance system performance and its dedicated parallel computing language specifically devel-oped for this vision system. The vision system can achieve motion detection at more than 2000fps and face detection at more than 100 fps which overwhelms some general serial CPUs in the same applications.
Normalized Ricci flows and conformally compact Einstein metrics
Jie Qing,Yuguang Shi,Jie Wu
Mathematics , 2011,
Abstract: In this paper, we investigate the behavior of the normalized Ricci flow on asymptotically hyperbolic manifolds. We show that the normalized Ricci flow exists globally and converges to an Einstein metric when starting from a non-degenerate and sufficiently Ricci pinched metric. More importantly we use maximum principles to establish the regularity of conformal compactness along the normalized Ricci flow including that of the limit metric at time infinity. Therefore we are able to recover the existence results in \cite{GL} \cite{Lee} \cite{Bi} of conformally compact Einstein metrics with conformal infinities which are perturbations of that of given non-degenerate conformally compact Einstein metrics.
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