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Molecular signature of chilling adaptation in rice

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National Science Review 2016年第3期3卷 276-277页

作者： Xin-min Li hong-Xuan Lin Shanghai Institutes for Biological Sciences Chinese Academy of Sciences

Originating from the wild species(Oryza rufipogon),Asian rice cultivars(***) mainly domesticated into two major subspecies,indica and japonica,after～10 000 years[1].This progress involving genetic variation,artificial selection and local adaptation stands for a footstone for the development of human *** meet the need of human civilization expansion,rice spreads to wider and wider areas with different

关键词： RGA Molecular signature of chilling adaptation in rice ABA RGS

Fuzzy Shape Control Based on El man Dynamic Recursion Network Prediction Model

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Journal of Iron and Steel Research International 2006年第1期13卷 31-35页

作者： JIA Chun-yu LIU hong-min College of Mechanical Engineering Yanshan University Qinhuangdao 066004 Hebei China

In the strip rolling process, shape control system possesses the characteristics of nonlinearity, strong coupling, time delay and time variation. Based on self adapting Elman dynamic recursion network prediction model, the fuzzy control method was used to control the shape on four-high cold mill. The simulation results showed that the system can be applied to real time on line control of the shape.

关键词： shape prediction shape control Elman dynamic recursion network parameter self-adjusting fuzzy control

High-Order Local Discontinuous Galerkin Algorithm with Time Second-Order Schemes for the Two-Dimensional Nonlinear Fractional Diffusion Equation

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Communications on Applied Mathematics and Computation 2020年第4期2卷 613-640页

作者： min Zhang Yang Liu hong Li School of Mathematical Sciences Xiamen UniversityXiamen 361005Fujian ProvinceChina School of Mathematical Sciences Inner Mongolia UniversityHohhot 010021China

In this article,some high-order local discontinuous Galerkin(LDG)schemes based on some second-order θ approximation formulas in time are presented to solve a two-dimen-sional nonlinear fractional diffusion *** unconditional stability of the LDG scheme is proved,and an a priori error estimate with O(h^(k+1)+At^(2))is derived,where k≥0 denotes the index of the basis *** numerical results with Q^(k)(k=0,1,2,3)elements are provided to confirm our theoretical results,which also show that the second-order convergence rate in time is not impacted by the changed parameter θ.

关键词： Two-dimensional nonlinear fractional difusion equation High-order LDG method Second-orderθscheme Stability and error estimate

Overexpression of low-density lipoprotein receptor prevents neurotoxic polarization of astrocytes via inhibiting NLRP3 inflammasome activation in experimental ischemic stroke

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Neural Regeneration Research 2025年第2期20卷 491-502页

作者： Shuai Feng Juanji Li Tingting Liu Shiqi Huang Xiangliang Chen Shen Liu Junshan Zhou hongdong Zhao Ye hong Department of Neurology Nanjing First HospitalNanjing Medical UniversityNanjingJiangsu ProvinceChina Department of Neurology Nanjing Jinling HospitalAffiliated Hospital of Medical SchoolNanjing UniversityNanjingJiangsu ProvinceChina

Neurotoxic astrocytes are a promising therapeutic target for the attenuation of cerebral ischemia/reperfusion ***-density lipoprotein receptor,a classic cholesterol regulatory receptor,has been found to inhibit NLR family pyrin domain containing protein 3(NLRP3)inflammasome activation in neurons following ischemic stroke and to suppress the activation of microglia and astrocytes in individuals with Alzheimer’s ***,little is known about the effects of low-density lipoprotein receptor on astrocytic activation in ischemic *** address this issue in the present study,we examined the mechanisms by which low-density lipoprotein receptor regulates astrocytic polarization in ischemic stroke ***,we examined low-density lipoprotein receptor expression in astrocytes via immunofluorescence staining and western blotting *** observed significant downregulation of low-density lipoprotein receptor following middle cerebral artery occlusion reperfusion and oxygen-glucose deprivation/***,we induced the astrocyte-specific overexpression of low-density lipoprotein receptor using astrocyte-specific adeno-associated ***-density lipoprotein receptor overexpression in astrocytes improved neurological outcomes in middle cerebral artery occlusion mice and reversed neurotoxic astrocytes to create a neuroprotective ***,we found that the overexpression of low-density lipoprotein receptor inhibited NLRP3 inflammasome activation in oxygen-glucose deprivation/reoxygenation injured astrocytes and that the addition of nigericin,an NLRP3 agonist,restored the neurotoxic astrocyte *** findings suggest that low-density lipoprotein receptor could inhibit the NLRP3-meidiated neurotoxic polarization of astrocytes and that increasing low-density lipoprotein receptor in astrocytes might represent a novel strategy for treating cerebral ischemic stroke.

关键词： inflammation ischemia/reperfusion injury ischemic stroke low-density lipoprotein receptor neuroprotective astrocytes neurotoxic astrocytes NLRP3 inflammasome polarization

Calculation of Partition Function of QCD at Finite Chemical Potential

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Communications in Theoretical Physics 2008年第2期49卷 435-438页

作者： SUN Wei-min ZONG hong-Shi Department of Physics Nanjing University Nanjing 210093 China joint Center for Particle Nuclear Physics and Cosmology Nanjing 210093 China

In equilibrium statistical field theory, the partition function has fundamental importance. In this paper we propose a direct and general method for calculating the partition function and equation of state of QCD at finite chemical potential. It is found that the partition function is totally determined by the dressed quark propagator at finite chemical potential up to a multiplicative constant. From this a criterion for the phase transition between the Nambu and the Wigner phases is obtained. This general method is applied to two specific cases： the free quark theory and QCD with a model dressed quark propagator having confinement features. In the first case, the standard Fermi distribution at T = 0 is reproduced. In the second case, we apply the conclusion in previous works to obtain the dressed quark propagator at finite chemical potential and find the unphysical result that the baryon number density vanishes for all values of chemical potential. The reason for this result is discussed.

关键词： partition function of QCD phase transition

Influence of injection of Chinese botulinum toxin type A on the histomorphology and myosin heavy chain composition of rat gastrocnemius muscles

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2013年第11期14卷 983-992页

作者： Bin hong min CHEN Xing-yue HU Department of Neurology Sir Run Run Shaw HospitalSchool of MedicineZhejiang University Department of Endocrinology the First Affiliated HospitalSchool of MedicineZhejiang University

Background and objective:Botulinum toxin type A(BoNT/A)is a metalloprotease that blocks synaptic transmission via the cleavage of a synaptosomal-associated protein of 25 kDa(SNAP-25).It has gained widespread use as a treatment for cerebral palsy and skeletal muscle *** China,Chinese botulinum toxin type A(CBTX-A),a type of BoNT/A,is in widespread clinical ***,the changes in the morphological and biochemical properties of treated muscles and in remote muscles from the CBTX-A injection site are relatively ***,we investigated the changes in histomorphology and myosin heavy chain(MyHC)isoform composition and distribution in rat gastrocnemius muscles after intramuscular injection of ***:The weakness of the injected muscles was assessed periodically to identify their functional *** slices were stained with hematoxylin-eosin(HE)and adenosine triphosphatase(ATPase).MyHC isoform composition was analyzed by sodium dodecyl sulfatepolyacrylamide gel electrophoresis(SDS-PAGE)to uncover changes in morphological and biochemical ***:Our findings demonstrate that following injection of CBTX-A 5 U into rat gastrocnemius muscles,shifts in MyHC isoform composition emerged on the third day after injection and peaked in the fourth *** composition remained distinctly different from that of the control group after the twelfth *** specifically,there was a decrease in the proportion of the type IIb isoform and an increase in the proportions of type IIx,type IIa,and type I ***:Data revealed that CBTX-A led to a shift in MyHC composition towards slower isoforms and that the MyHC composition remained far from normal six months after a single ***,no noticeable remote muscle weakness was induced.

关键词： Botulinum toxin type A(BoNT/A) Myosin heavy chain Chemodenervation Remote effect

IRAS F21013-0739:a possible evolutionary successor of an ultraluminous infrared galaxy

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Research in Astronomy and Astrophysics 2011年第4期11卷 419-433页

作者： Xian-min Meng hong Wu Chen Cao National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China Graduate University of Chinese Academy of Sciences Beijing 100039 China Shandong University at Weihai Weihai 264209 China

We present a stellar population synthesis study of a type II luminous infrared galaxy, IRAS F21013-0739. Optical images show clear characteristics of a merger remnant. The H-band absolute magnitude is MH = -25.1, which is -2 times as luminous as L＊ galaxies. Stellar populations are obtained through the stellar synthesis code STARLIGHT. We find that it experienced a recent starburst （SB） phase - 100 Myr ago. By reconstructing the ultraviolet-to-optical spectrum, and adopting Calzetti et al. and Leitherer et al.＇s extinction curves, we estimate the past infrared （IR） luminosities of the host galaxy and find it may have experienced an ultraluminous infrared galaxy phase which lasted for about 100 Myr. Its i-band absolute magnitude is Mi = -22.463, and its spectral type shows type 2 active galactic nucleus （AGN） characteristics. The mass of the supermassive black-hole is estimated to be MBH = 1.6 × 107 M⊙ （lower- limit）. The Eddington ratio Lbol/LEdd is 0.15, which is typical of Palomar-Green （PG） quasars. Both the nuclear SB and AGN contribute to the present IR luminosity budget, and the SB contributes -67%. On the diagram of IR color versus IR/opfical excess, it is located between IR quasars and PG quasars. These results indicate that IRAS F21013-0739 has probably evolved from a ULIRG, and it can possibly evolve into an AGN.

关键词： infrared galaxies -- galaxies evolution -- galaxies starburst --galaxies: individual (IRAS F21013-0739) -- galaxies stellar content

Statistical Inference on Seemingly Unrelated Single-Index Regression Models

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Acta Mathematicae Applicatae Sinica 2016年第4期32卷 945-956页

作者： Bing HE Jin-hong YOU min CHEN School of Mathematics Jilin University School of Statistics and Management Shanghai University of Finance and Economics Academy of Mathematics and Systems Science Chinese Academy of Sciences

In this article, we consider a class of seemingly unrelated single-index regression models. By taking the contemporaneous correlation among equations into account we construct the weighted estimators （WEs） for unknown parameters of the coefficients and the improved local polynomial estimators for the unknown functions, respectively. We establish the asymptotic normalities of these estimators, and show both of them are more asymptotically efficient than those ignoring the contemporaneous correlation. The performances of the proposed procedures are evaluated through simulation studies.

关键词： seemingly unrelated contemporaneous correlation single-index weighted estimation

Identification of Eye Movements from Non-frontal Face Images for Eye-controlled Systems

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International Journal of Automation and computing 2014年第5期11卷 543-554页

作者： min Lin Bin Li Qiao-hong Liu School of Mechatronic Engineering and Automation Shanghai University Shanghai Medical Instrumentation College University of Shanghai Science and Technology

The novel eye-based human-computer interaction(HCI) system aims to provide people, especially, disabled persons,a new way of communication with surroundings. It adopts a series of continual eye movements as input to perform simple control activities. Identification of eye movements is the crucial technology in these eye-based HCI systems. At present, researches on eye movement identification mainly focus on frontal face images. In fact, acquisition of non-frontal face images is more reasonable in real applications. In this paper, we discuss the identification process of eye movements from non-frontal face images. Firstly, the original head-shoulder images of 0?–±60?azimuths are sampled without any auxiliary light source. Secondly, the non-frontal face region is detected by using the Adaboost cascade classifiers. After that, we roughly extract eye windows by the integral projection ***, we propose a new method to calculate the x- y coordinates of the pupil center point by searching the minimal intensity value in the eye windows. According to the trajectory of the pupil center points, different eye movements(eye moving left, right, up or down)are successfully identified. A set of experiments is presented.

关键词： Eye movement identification non-frontal face images pupil center localization human-computer interaction eye-based system