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Search Results: 1 - 10 of 33645 matches for " Ming Gong "
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The diagnosis of HIV-associated central nervous system opportunistic infections
GONG Qi-ming
Chinese Journal of Contemporary Neurology and Neurosurgery , 2013, DOI: 10.3969/j.issn.1672-6731.2013.01.007
Abstract: Opportunistic infections of the central nervous system (CNS) are very common and severe complications of advanced immunodeficiency in patients with human immunodeficiency virus type 1 (HIV-1) infection, which are included in the diagnostic criteria for acquired immunodeficiency syndrome (AIDS) defining conditions according to 1993 Revised Classification System for HIV Infection and Expanded Surveillance Case Definition for AIDS among Adolescents and Adults published by USA Centers for Disease Control and Prevention (CDC). The etiologic microorganisms of CNS opportunistic infections include virus, bacteria, fungus, mycobacterium and parasite. The clinical symptoms, signs and laboratory examinations of these diseases are different from that of patients with non-immunodeficiency. Even in the era of highly active antiretroviral therapy (HAART), worsening conditions or new infections may occur. Therefore, prompt diagnosis and treatment of such disorders are critical. The immune reconstitution inflammatory syndrome (IRIS) in HIV-1 infected patients in the initiating antiretroviral therapy results from restored immunity to specific infectious or non-infectious antigens. This study reviews the epidemiology, pathogenesis, clinical features, diagnosis of some common CNS disorders in HIV-1 infected patients. Physicians caring for such patients must be aware of the new diagnostic modalities and therapeutic options of these diseases.
A mini review on NiFe-based materials as highly active oxygen evolution reaction electrocatalysts
Ming Gong,Hongjie Dai
Physics , 2014,
Abstract: Oxygen evolution reaction (OER) electrolysis, as an important reaction involved in water splitting and rechargeable metal-air battery, has attracted increasing attention for clean energy generation and efficient energy storage. Nickel/iron (NiFe)-based compounds have been known as active OER catalysts since the last century, and renewed interest has been witnessed in recent years on developing advanced NiFe-based materials for better activity and stability. In this review, we present the early discovery and recent progress on NiFe-based OER electrocatalysts in terms of chemical properties, synthetic methodologies and catalytic performances. The advantages and disadvantages of each class of NiFe-based compounds are summarized, including NiFe alloys, electro-deposited films and layered-double hydroxide nanoplates. Some mechanistic studies of the active phase of NiFe-based compounds are introduced and discussed to give insight into the nature of active catalytic site, which could facilitate further improving NiFe based OER electrocatalysts. Finally, some applications of NiFe-based compounds for OER are described, including the development of electrolyzer operating with a single AAA battery with voltage below 1.5V and high performance rechargeable Zn-air batteries.
The chromatin remodeling protein BRG1 modulates BRCA1 response to UV irradiation by regulating ATR/ATM activation
Hua Chen,Ming Gong,Feng Gong
Frontiers in Oncology , 2013, DOI: 10.3389/fonc.2013.00007
Abstract: The SWI/SNF chromatin remodeling complex plays a role in the repair of UV-induced DNA damage. It was proposed that chromatin remodeling activities are utilized to increase the accessibility of nucleotide excision repair (NER) machinery and checkpoint factors to the damaged DNA. It was shown recently that BRCA1 contributes to UV damage response by promoting photoproduct excision, triggering post-UV checkpoint activation and post-replicative repair. In this study, we show that BRCA1 rapidly binds to UV damage sites when cells are undergoing DNA synthesis. In contrast, two phosphorylated forms of BRCA1 do not accumulate at sites of UV damage. Depletion of BRG1, a core subunit of the human SWI/SNF-BAF complex, impairs the recruitment of BRCA1 to the damage sites and attenuates DNA damage induced BRCA1 phosphorylation. At UV lesions-stalled replication forks, BRG1 promotes RPA phosphorylation in response to UV irradiation, since UV-induced phosphorylation of chromatin bound RPA drops significantly when BRG1 is depleted in human cells. Importantly, activation of the ATM/ATR kinases is attenuated when BRG1 is depleted. We propose that BRG1 modulates BRCA1 response to UV irradiation by regulating ATM/ATR activation.
Microbial safety control of compost material with cow dung by heat treatment
GONG Chun-ming,

环境科学学报(英文版) , 2007,
Abstract: Various kinds of pathogenic bacteria derived from the intestinal tract of animals exist in compost material like cow dung. In order to sterilize the pathogenic bacteria completely in compost material, the cow dung was put into a heat treatment machine in pilot plan, and harmless condition in short time was examined. The results indicated, pathogenic indicator bacteria such as coliform bacteria, fecal coliform, Escherichia coli and salmonella were all 106 cfu/g dw at the beginning, died rapidly when cow dung temperature rose to above 50℃, and not detected at 54-68℃ for 6-24 h heat treatment. Coliform bacteria and salmonella in heated cow dung were not detected by re-growth culture and enrichment culture examination. Moreover, it was hardly influenced on the fermentation ability of composting microbe, organic decomposition bacteria. During heat treatment, the mesophile decreased rapidly and the thermophile stabilized or increased, and the most of composting microbe were bacillus in cow dung by fluorescence microscope, it was indicated that bacillus was dominator and composting microbe in composting process.
Effect of cooling rates on the microstructure of proeutectoid ferrite in Fe-0.76%C alloy under high magnetic field

GONG Ming-Long,

材料研究学报 , 2008,
Pairing Symmetry, Phase diagram and Edge Modes in Topological Fulde-Ferrell-Larkin-Ovchinnikov Phase
Chan Chun Fai,Gong Ming
Physics , 2013,
Abstract: The realizations of spin-orbit coupling in cold atoms lead to a burst of research activities in the searching of topological matters in ultracold atom systems. The very recent theoretical predictions show that topological Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superfluids can be realized with proper spin-orbit coupling and Zeeman fields. In this work, a comprehensive understanding of the pairing symmetry, phase diagram and the edge modes in this new topological matter are presented. The momentum of the Cooper pairs plays the role of renormalizing the in-plane Zeeman field and chemical potential. The in-plane Zeeman field and finite momentum pairing induce asymmetry to the effective $p$-wave pairing, apart from a small fraction of higher orbital components. The phase diagram is composed by different phases, which are determined by the topology and band gap nature of the superfluids. Especially, the gapped and gapless topological FFLO phase have totally different finite size effect. These novel features show that the spin-orbit coupled cold atoms provides an important platform in realizing topological matters which may not be materialized with solids.
Rotational excitation of He-BH collision system

Gong Ming-Yan,

物理学报 , 2011,
Abstract: 在碰撞体系He+BH的CCSD(T)二维势能面基础上,应用密耦方法,研究了 He+BH分子碰撞转动激发过程.计算了该体系的转动态-态激发的弹性和非弹性的微分和积分截面,分析了计算结果与势能面特征间的关系.结果表明: He原子以从H原子端共线形式碰撞BH分子对j=0→j'=2的激发最为有效;短程排斥对Δj=2的激发作用较大;态-态跃迁总截面出现振荡结构,长程部分分波只对j=0→j'=1的跃迁总截面有较大贡献,j'≥
On the Importance of Documentation to the Study of the Civil Service System

GONG Yan,ming,

浙江大学学报(人文社会科学版) , 2002,
Abstract: Ancient books are the basis on which the research of history is done. Correct reading, comprehension and utilization of these books rely chiefly on a correct understanding of institution systems recorded in them. The civil service system, which is available in manifold records concerning political, economic, cultural and social life, represents an important aspect of the institution systems. Unfortunately, however, a lot of mistakes found in examining the revision of ancient books published over the last 20-30 years are attributed to misunderstanding of the said systems, to the best of my knowledge. The study of the civil service system is of importance to documentation in enhancing the ability to read ancient books, improving the revision of ancient books, conducting research and criticism of historical facts, and writing biographies of historical figures.
Fixed points in interacting dark energy models
Xi-ming Chen,Yungui Gong
Physics , 2008, DOI: 10.1016/j.physletb.2009.03.064
Abstract: The dynamical behaviors of two interacting dark energy models are considered. In addition to the scaling attractors found in the non-interacting quintessence model with exponential potential, new accelerated scaling attractors are also found in the interacting dark energy models. The coincidence problem is reduced to the choice of parameters in the interacting dark energy models.
BCS-BEC crossover in spin-orbit coupled two-dimensional Fermi gases
Gang Chen,Ming Gong,Chuanwei Zhang
Physics , 2011, DOI: 10.1103/PhysRevA.85.013601
Abstract: The recent experimental realization of spin-orbit coupling for ultra-cold atoms has generated much interest in the physics of spin-orbit coupled degenerate Fermi gases. Although recently the BCS-BEC crossover in three-dimensional (3D) spin-orbit coupled Fermi gases has been intensively studied, the corresponding two-dimensional (2D) crossover physics has remained unexplored. In this paper, we investigate, both numerically and analytically, the BCS-BEC crossover physics in 2D degenerate Fermi gases in the presence of a Rashba type of spin-orbit coupling. We derive the mean field gap and atom number equations suitable for the 2D spin-orbit coupled Fermi gases and solve them numerically and self-consistently, from which the dependence of the ground state properties (chemical potential, superfluid pairing gap, ground state energy per atom) on the system parameters (e.g., binding energy, spin-orbit coupling strength) is obtained. Furthermore, we derive analytic expressions for these ground state quantities, which agree well with our numerical results within a broad parameter region. Such analytic expressions also agree qualitatively with previous numerical results for the 3D spin-orbit coupled Fermi gases, where analytic results are lacked. We show that with an increasing SOC strength, the chemical potential is shifted by a constant determined by the SOC strength. The superfluid pairing gap is enhanced significantly in the BCS limit for strong SOC, but only increases slightly in the BEC limit.
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