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Wrinkled petals and stamens 1,is required for the morphogenesis of petals and stamens in Lotus japonicus

Cell Research 2006年第5期16卷 499-506页

作者： Jiang Hua Chen~1 Ji Liang Pang~2 Li Lin Wang~2 Yong Hai Luo~1 Xin Li~3 Xiang Ling Cao~1 Kui Lin~3 Wei Ma~3 Xiao He Hu~1 Da Luo~(1,3) ~1National Laboratory of Plant Molecular Genetics,Institute of Plant Physiology and Ecology,Shanghai Institutes for Biological sciences,and Graduate school of the Chinese Academy of sciences,Chinese Academy of sciences,300 Fenglin road,Shanghai 200032,china ~2school of life science,hangzhou normal college,16 xuelin road,hangzhou 310018,china ~3school of life science and Biotechnology,Shanghai Jiao Tong University,1954 Huashan road,Shanghai 200030,china National Laboratory of Plant Molecular Genetics Institute of Plant Physiology and Ecology Shanghai Institutes for Biological Sciences and Graduate School of the Chinese Academy of Sciences Chinese Academy of Sciences Shanghai China school of life science Hangzhou Normal College Hangzhou China school of life science and Biotechnology Shanghai Jiao Tong University Shanghai China

Although much progress has been made in understanding how floral organ identity is determined during the floraldevelopment,less is known about how floral organ is elaborated in the late floral developmental *** we de-scribe a novel floral mutant,wrinkledt petals and stamensl (wps1),which shows defects in the development of petalsand *** analysis indicates that wps1 mutant is corresponding to a single recessive locus at the long arm ofchromosome *** early development of floral organs in wps1 mutant is similar to that in wild type,and the malfunctionof the mutant commences in late developmental stages,displaying a defect on the appearance of petals and *** mature flower,petals and stamen filaments in the mutant are wrinkled or folded,and the cellular morphology underL1 layer of petals and stamen filaments is *** is found that the expression patterns of floral organ identity genesare not affected in wps1 mutants compared with that of wild type,consistent with the unaltered development of allfloral ***,the identities of epidermal cells in different type of petals are *** histologicalanalysis shows that in wps1 flowers all petals are irregularly folded,and there are knotted structures in the petals,whilethe shape and arrangement of inner cells are malformed and *** on these results,we propose that Wps1acts downstream to the class B floral organ identity genes,and functions to modulate the cellular differentiation duringthe late flower developmental stages.

关键词： Lotus japonicus wps1 mutant ABC model floral organ differentiation

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ONO-1078 reduces NMDA-induced brain injury and vascular cell adhesion molecule-1 expression in rats

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Acta Pharmacologica Sinica 2005年第4期26卷 435-440页

作者： Li-hui ZHANG~(2,3) Er-qing WEI~(2,4) 2 Department of Pharmacology,school of Medicine,Zhejiang University,hangzhou 310031 3 Medical school,hangzhou normal University,hangzhou 310018,china Department of Pharmacology School of Medicine Zhejiang University Hangzhou China Medical school Hangzhou Normal University Hangzhou China

Aim:To determine whether ONO-1078 （pranlukast）,a potent cysteinyl leukotrienereceptor 1 （CysLTI） antagonist,has an effect on N-methyl-D-aspartate （NMDA）-induced brain injury and vascular cell adhesion molecule-1 （VCAM-1） expres-sion in ***:Brain injury was induced by direct microinjection of NMDA（0.3 μmol in 1 μL of sterile 0.1 mol/L PBS,pH 7.4） into the cerebral *** volume （area）,brain edema and neuron density were assessed by an imageanalyzer and the expression of VCAM-1 in the cortex was detected by Westernblot 24 h after NMDA ***-1078 （0.03,0.1,or 0.3 mg/kg） andedaravone （MCI-186,10 mg/kg）,a neuroprotective agent,were ip injected 30rain before and after NMDA ***:NMDA microinjection producedwell-defined focal lesions （Figure 1） dose- and ***-1078（0.1,0.3 mg/kg） and edaravone （10 mg/kg） decreased the total lesion volume,lesion area and brain edema induced by ***,ONO-1078 （0.1,0.3mg/kg） significantly inhibited the enhanced expression of VCAM-1 in the injuredcortices,but edaravone did not have this ***:CysLT1receptorantagonist ONO-1078 at tenufftes NMDA-induced brain damage in rats,and thismight relate to the attenuation of NMDA receptor-dependent neurotoxicity andthe inhibition of the upregulation of VCAM-1 expression.

关键词： leukotriene antagonists pranlukast N-methylaspartate vascular cell adhesion molecule-1 neurotoxicity brain injuries

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Recent progress in visualization and digitization of coherent transformation structures and application in high-strength steel

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International Journal of Minerals,Metallurgy and Materials 2024年第6期31卷 1298-1310页

作者： xuelin Wang Zhenjia Xie Xiucheng Li Chengjia Shang Collaborative Innovation Center of Steel Technology University of Science and Technology BeijingBeijing 100083China State Key Laboratory for Advanced Metals and Materials University of Science and Technology BeijingBeijing 100083China Yangjiang Branch Guangdong Laboratory for Materials Science and Technology(Yangjiang Advanced Alloys Laboratory)Yangjiang 529500China

High-strength steels are mainly composed of medium-or low-temperature microstructures,such as bainite or martensite,with coherent transformation *** type of microstructure has a high density of dislocations and fine crystallographic structural units,which ease the coordinated matching of high strength,toughness,and ***,given its excellent welding perform-ance,high-strength steel has been widely used in major engineering constructions,such as pipelines,ships,and ***,visual-ization and digitization of the effective units of these coherent transformation structures using traditional methods(optical microscopy and scanning electron microscopy)is difficult due to their complex ***,the establishment of quantitative relationships with macroscopic mechanical properties and key process parameters presents additional *** article reviews the latest progress in microstructural visualization and digitization of high-strength steel,with a focus on the application of crystallographic methods in the development of high-strength steel plates and *** obtained the crystallographic data(Euler angle)of the transformed microstruc-tures through electron back-scattering diffraction and combined them with the calculation of inverse transformation from bainite or martensite to austenite to determine the reconstruction of high-temperature parent austenite and orientation relationship(OR)during con-tinuous cooling ***,visualization of crystallographic packets,blocks,and variants based on actual OR and digit-ization of various grain boundaries can be effectively completed to establish quantitative relationships with alloy composition and key process parameters,thereby providing reverse design guidance for the development of high-strength steel.

关键词： high-strength steel microstructure visualization digitization quantification mechanical properties

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Weighted composition operators between μ-Bloch spaces on the unit ball

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science china Mathematics 2005年第10期48卷 1349-1368页

作者： ZHANG Xuejun~1 & XIAO Jianbin~2 1. college of Mathematics and Computer science,Hunan normal University,Changsha 410006,china(email:xuejunttt@263. net) 2. The school of science,hangzhou Dianzi University,hangzhou 310037,china college of Mathematics and Computer science Hunan Normal University Changsha China The school of science Hangzhou Dianzi University Hangzhou China

In this paper,necessary and sufficient conditions are given for the weighted composition operator T_(ψ,ψ) to be bounded or compact from the space β_μ to β_ν (or β_(μ,0) to β_(ν,0) ) on the unit ball of C^***... 详细信息

关键词： μ-Bloch space, weighted composition operator, boundedness, compactness.

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Pollen morphology of Rhododendron subgen. Tsutsusi and its systematic implications

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Journal of Systematics and Evolution 2009年第2期47卷 123-138页

作者： 1,2Yue-Jiao ZHANG 1Xiao-Feng JIN 3Bing-Yang DING 4Jing-Ping ZHU 1(school of life & Environment sciences,hangzhou normal University,hangzhou 310036,china) 2(college of life sciences,Zhejiang University,hangzhou 310012,china) 3(school of life & Environment sciences,Wenzhou University,Wenzhou 325027,china) 4(Center of Analysis & Measurement,Zhejiang University,hangzhou 310028,china) school of life & Environment sciences Hangzhou Normal University Hangzhou 310036 China college of life sciences Zhejiang University Hangzhou 310012 China school of life & Environment sciences Wenzhou University Wenzhou 325027 China Center of Analysis & Measurement Zhejiang University Hangzhou 310028 China

Eighty-four pollen samples were obtained for 80 taxa,of which,13 species and one variety are from *** Sweet,58 species and two varieties from *** Sweet,and six species from ***(***) Pojarkova,*** morphology of all samples was observed using LM and *** grains are revealed to be spheroidal and tetrahedral with tricolporate *** sizes of ***(Sweet) Pojarkova range from 37.67 μm to 61.06 μm,and the exine sculptures are more or less compactly *** sizes are significantly different between *** and *** of *** tashiroi *** *** Sleumer shows a close affinity to *** size and exine are consistent with general morphology in differentiating species in *** huadingense *** & ***,once placed as a member of ***,should be considered as a species in ***.

关键词： Ericaceae Rhododendron subgen.Tsutsusi pollen morphology tetrahedral tetrads systematic implication

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Liquid metal biomaterials: translational medicines,challenges and perspectives

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National science Review 2024年第2期11卷 264-284页

作者： Hanchi Xu Jincheng Lu Yikuang Xi xuelin Wang Jing Liu Department of Biomedical Engineering School of Medicine Tsinghua University Beijing Tsinghua Changgung Hospital School of Clinical Medicine Tsinghua University Shanghai World Foreign Language Academy Beijing Advanced Innovation Center for Biomedical Engineering School of Engineering MedicineBeihang University Beijing Key Lab of Cryo-Biomedical Engineering and Key Lab of Cryogenics Technical Institute of Physics and Chemistry Chinese Academy of Sciences

Until now, significant healthcare challenges and growing urgent clinical requirements remain incompletely addressed by presently available biomedical materials. This is due to their inadequate mechanical compatibility, suboptimal physical and chemical properties, susceptibility to immune rejection, and concerns about long-term biological safety. As an alternative, liquid metal(LM) opens up a promising class of biomaterials with unique advantages like biocompatibility, flexibility, excellent electrical conductivity,and ease of functionalization. However, despite the unique advantages and successful explorations of LM in biomedical fields, widespread clinical translations and applications of LM-based medical products remain limited. This article summarizes the current status and future prospects of LM biomaterials, interprets their applications in healthcare, medical imaging, bone repair, nerve interface, and tumor therapy, *** to translate LM materials into medicine and obstacles encountered in practices are *** that, we outline a blueprint for LM clinics, emphasizing their potential in making new-generation artificial organs. Last, the core challenges of LM biomaterials in clinical translation, including bio-safety,material stability, and ethical concerns are also discussed. Overall, the current progress, translational medicine bottlenecks, and perspectives of LM biomaterials signify their immense potential to drive future medical breakthroughs and thus open up novel avenues for upcoming clinical practices.

关键词： liquid metal biomaterials translational medicine clinical device healthcare therapeutics

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The best quadrature based on given Hermite information for the Sobolev class KW^r[a,b]

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science china Mathematics 2006年第8期49卷 1146-1152页

作者： WANG Xinghua & YANG Shijun Department of Mathematics, Zhejiang University, hangzhou 310028, china Department of Mathematics, hangzhou normal college, hangzhou 310036, china Department of Mathematics Zhejiang University Hangzhou China Department of Mathematics Hangzhou Normal College Hangzhou China

As usual, denote by KWr[a,b] the Sobolev class consisting of every function whose (r-1)th derivative is absolutely continuous on the interval [a,b] and rth derivative is bounded by K a.e. In [a,b]. For a function f ∈ KWr[a,b], its values and derivatives up to r-1 order at a set of nodes x are known. These values are said to be the given Hermite *** work reports the results on the best quadrature based on the given Hermite information for the class KWr[a,b]. Existence and concrete construction issue of the best quadrature are settled down by a perfect spline interpolation. It turns out that the best quadrature depends on a system of algebraic equations satisfied by a set of free nodes of the interpolation perfect spline. From our another new result, it is shown that the system can be converted in a closed form to two single-variable polynomial equations, each being of degree approximately r/2. As a by-product,the best interpolation formula for the class KWr[a,b] is also obtained.

关键词： Sobolev class, Hermite information, perfect spline, optimal recovery, best quadrature.

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Recombinant Functional Human Lactoferrin Expressed in Baculovirus System

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Acta Biochimica et Biophysica Sinica 2006年第3期38卷 201-206页

作者： Tao LIU~(1,2) Yao-Zhou ZHANG~2* Xiang-Fu WU~31 Institute of Biochemistry,college of life sciences,Zhejiang University,hangzhou 310029,china 2 Institute of Biochemistry,Zhejiang Sci-Tec University,hangzhou 310018,china 3 Institute of Biochemistry and Cell Biology,Chinese Academy of sciences Shanghai 200031,china Institute of Biochemistry College of Life Sciences Zhejiang UniversityHangzhou 310029 China Institute of Biochemistry Zhejiang Sci-Tec UniversityHangzhou 310018 China Institute of Biochemistry and Cell Biology Chinese Academy of SciencesShanghai 200031 China

Human lactoferrin (hLf) is a multifunctional iron-binding *** this study,weamplified hLfcDNA by reverse transcription-polymerase chain reaction from normal human mammary *** nucleotide sequence of the hLf was identical to the known *** constructed a recombinant virus,vBm-hLf,harboring the hLf gene and exploited the BmN cells as host to produce recombinant human lactoferrin(rhLf).It was found that a recombinant protein with a molecular mass of approximately 78 kDa was *** 13.5μg rhLf was purified from 1-2×10～5 BmN cells infected by vBm-hLf and the rhLfproved to be biologically *** method established in our study will pave the way for efficient productionof rhLf for further application of this protein in the future.

关键词： bacteriostatic activity baculovirus Bombyx mori human lactoferrin reverse transcriptionpolymerase chain reaction

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Structure and defect dual-engineering of cobalt oxides for lowtemperature Zn-air batteries

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Nano Research 2024年第5期17卷 4108-4117页

作者： Hang Lei Zhuowen Huangfu Liangjun Chen xuelin Yang Zilong Wang Wenjie Mai Hubei Provincial Collaborative Innovation Center for New Energy Microgrid College of Electrical Engineering&New EnergyChina Three Gorges UniversityYichang 443002China Siyuan Laboratory Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy MaterialsDepartment of PhysicsJinan UniversityGuangzhou 510632China

The exploration of bifunctional electrocatalysts with high catalytic activity and long-term durability for low-temperature Zn-air batteries(ZABs)is an ongoing ***,quintet-shelled hollow spheres,P-doped multi-layer Co_(3)O_(4)(PM-Co_(3)O_(4)),with enriched oxygen vacancies are prepared by thermally induced mass relocation and a simple phosphating *** advanced characterizations reveal P anion-induced effects on internal electronic structure and local coordination *** finite element method elucidates that the complex multi-layer spherical nanostructure is conducive to the transport and diffusion of OH-and O_(2).Benefiting from its unique structural features and abundant oxygen vacancies,the well-designed PM-Co_(3)O_(4) presents small reversible oxygen overpotential for catalyzing oxygen reduction/evolution ***,the fabricated low-temperature ZABs based on PM-Co_(3)O_(4) as air-cathode exhibit high power density(20.8 mW·cm^(-2))and long-term stability(over 600 cycles)at the ultra-low temperature of-40℃,outperforming state-of-art Pt/C+IrO_(2)-based ***,the dynamic evolution mechanism of cobalt oxide catalysts during ZAB operation is *** work provides a guideline to design efficient electrocatalysts with regulated electronic configurations and exquisite nano-/microstructures for ZABs under extreme working conditions.

关键词： Zn-air batteries electrocatalysts low temperature hollow spheres oxygen vacancies

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On solving equations of algebraic sum of equal powers

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science china Mathematics 2006年第9期49卷 1153-1157页

It is well known that a system of equations of sum of equal powers can be converted to an algebraic equation of higher degree via Newton's identities. This is the Viete-Newton theorem. This work reports the generalizations of the Viete-Newton theorem to a system of equations of algebraic sum of equal powers. By exploiting some facts from algebra and combinatorics,it is shown that a system of equations of algebraic sum of equal powers can be converted in a closed form to two algebraic equations, whose degree sum equals the number of unknowns of the system of equations of algebraic sum of equal powers.

关键词： algebraic sum of equal powers, Newton's identities, system of equations,roots of a polynomial.

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