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Variation in Floral Sex Allocation and Reproductive Success in Sequentially Flowering Inflorescence of Corydalis remota var. lineariloba(Fumariaceae)

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Journal of Integrative Plant Biology 2009年第3期51卷 299-307页

作者： Yan-Fei Zeng wei-ning Bai Yu Zhou Da-Yong Zhang Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering College of Life Sciences Beijing Normal University Beijing 100875 China State Key Laboratory of Systematic and Evolutionary Botany Institute of Botany the Chinese Academy of Sciences Beijing 100093 China

In hermaphroditic plants, female reproductive success often varies among different positions within an inflorescence. However, few studies have evaluated the relative importance of underlying causes such as pollen limitation, resource limitation or architectural effect, and few have compared male allocation. During a 2-year investigation, we found that female reproductive success of an acropetally flowering species, Corydalis remota Fisch. ex Maxim. var. lineariloba Maxim. was significantly lower in the upper late developing flowers when compared with the lower early flowers. Supplementation with outcross pollen did not improve female reproductive success of the upper flowers, while removal of the lower developing fruits significantly increased female reproductive success of the upper flowers in both years, evidencing resource limitation of the upper flowers. Female production in upper flowers was greatly improved by simultaneous pollen supplementation of the upper flowers and removal of the lower fruits, suggesting that, when resources are abundant, pollen may limit the female reproductive success of the upper flowers. The less seed mass in the upper flowers didn＇t increase in all treatments due to architecture. In the upper flowers, ovule production was significantly lower and the pollen ： ovule ratio was significantly higher. These results suggest that male-biased sex allocation in the upper flowers may lead to increased male reproductive success, whereas the lower flowers have higher female reproductive success.

关键词： architectural effect Corydalis remota var. lineariloba pollen limitation reproductive success resource limitation sequentially flowering sex allocation.

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Modified calcination conditions of rare alkali metal Rb-containing muscovite(KAl_2[AlSi_3O_(10)](OH)_2)

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Rare Metals 2013年第6期32卷 632-635页

作者： Zhi-Qiang Shan Xin-Qian Shu Ji-Fu Feng wei-ning Zhou School of Chemical and Environmental Engineering China University of Mining & Technology Comprehensive Utilization Research Institute of Resource Guilin Research Institute Geology for Mineral Resources

Muscovite mineral was roasted in different *** leaching rate was a standard to examine the impact of various factors on calcination effect,including the agent types,roasting time,mass ratio,and roasting *** results indicate that the best agent is the combination of sodium chloride and calcium chloride,and its mass ratio of muscovite/NaCl/CaCl2is1.00:0.25:*** at 850℃ for 30 min,the rubidium leaching rate is up to 90.12%.The reaction of muscovite ore with the chlorinating agent CaCl2was studied by TG/DSC,and the surface morphology before and after leaching was characterized by *** chloride products can be obtained using t-BAMBP extraction,hydrochloric acid re-extraction,and purification.

关键词： Modified calcination Muscovite ore Chlorinating agent

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Ecosystem service of green infrastructure for adaptation to urban growth:function and configuration

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Ecosystem Health and Sustainability 2018年第5期4卷 20-31页

作者： Yun-Cai Wang Jia-Ke Shen wei-ning Xiang Department of Landscape Architecture Center for Ecophronetic Practice ResearchCollege of Architecture and Urban PlanningTongji UniversityShanghaiChina Department of Geography and Earth Sciences the University of North Carolina at CharlotteCharlotteNCUSA

Objectives:(1)to explore what kind of green infrastructure(GI)meets the demand for urban ecological security of rapid urbanization areas;(2)to figure out how to determine the specific function and configuration of GI from ecosystem service requirements of urban ecological ***:(1)Through the literature review,this article summarizes the function and structure evolution of GI in order to adapt to urban growth.(2)Standing on the imperfect ecological functions and unreasonable spatial configurations,this article builds up a conceptual model for the optimization of green infrastructure ecosystem services to meet the demand for the green infrastructure pattern needed by urban ***:The optimization framework consists of four central function modules and its regulating and controlling mechanisms,incuding:(1)Balancing supply and demand of GI's ecosystem service;(2)Measuring and evaluating GI's ecosystem services;(3)Elevating and optimizing GI's ecosystem service;(4)Building urban ecological security patterm with high efficiency of GI's ecosystem ***,this framework provides guidance for the planning and design of GI and the urban ecological security pattern building in rapid urbanization areas based on ba lancing supply and demand of GI's ecosystem ***:The conceptual model of Gl's ecosystem service optimization based on balan-cing supply and demand shows a new path to meet the needs of urban growth and build a city's ecological security pattern through upgrading and optimizing GI.

关键词： Green infrastructure ecosystem service urban growth balancing supply and demand optimization framework

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Empirical Analysis of the Term Life Insurance’s Business Tax Base:Based on the Comparison to the Bank’s Business Tax

Empirical Analysis of the Term Life Insurance’s Business Ta...

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2012中国保险与风险管理国际年会

作者： ning wei XU Meng Financial School Central Financial Economic University Insurance Department Beijing Technology and Business University

ISBN: (纸本)9787894140364

Commercial life insurance has its own peculiarity in financial industry, but its business tax is levied according to the unified standard with other financial businesses. Unified standard inevitably causes different tax burden and the excess part of the commercial life insurance’s business tax may be paid by the insurance consumer through a higher premium rate. For consumers, on the same capital investment, different burden of taxation must influence their selection on different financial products. This paper selects the term life insurance （the most simple and common insurance product） as the breakthrough point, comparing with the banking industry, to see the balance in their business tax amount. In the paper, the author will calculate the term life insurance’s actual business tax base by the bank’s calculation method, and using China Life Table （2000-2003） to do empirical research.

关键词： Commercial life insurance term life insurance business tax

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In situ growth of single-crystal TiO2 nanorod arrays on Ti substrate： Controllable synthesis and photoelectro- chemical water splitting

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Nano Research 2017年第3期10卷 1021-1032页

作者： Tingting Zhang Zia Ur Rahman ning wei Yupeng Liu Jun Liang Daoai Wang State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy ofSciences Lanzhou 730000 China University of Chinese Academy of Sciences Beijing 100049 China Qingdao Center for Resource Chemistry and New Materials Qingdao 266100 China

Despite one-dimensional （1D） semiconductor nanostructure arrays attracting increasing attention due to their many advantages, highly ordered TiO2 nanorod arrays （TiO2 NR） are rarely grown in situ on Ti substrates. Herein, a feasible method to fabricate TiO2 NRs on Ti substrates by using a through-mask anodization process is reported. Self-ordered anodic aluminum oxide （AAO） overlaid on Ti substrate was used as a nanotemplate to induce the growth of TiO2 NRs. The NR length and diameter could be controlled by adjusting anodization parameters such as electrochemical anodization voltage, anodization time and temperature, and electrolyte composition. Furthermore, according to the proposed NR formation mechanism, the anodized Ti ions migrate and deposit in the AAO nanochannels to form Ti（OH）4 or amorphous TiO2 NRs under electric field, owing to the confinement effect of the template. Photoelectrochemical tests indicated that, after hydrogenation, the TiO2 NRs presented higher photocurrent density under simulated sunlight and visible light illuminations, suggesting their potential use in photoelectrochemical water splitting, photocatalysis, solar cells, and sensors.

关键词： hydrogenation TiO2 nanorod arrays in situ preparation through-hole anodic alu-minum oxide (AAO) mask photoelectrochemical

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Identify the contribution of vehicle non-exhaust emissions:a single particle aerosol mass spectrometer test case at typical road environment

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Frontiers of Environmental Science & Engineering 2023年第5期17卷 117-128页

作者： Qijun Zhang Jiayuan Liu ning wei Congbo Song Jianfei Peng Lin Wu Hongjun Mao Tianjin Key Laboratory of Urban Transport Emission Research&State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control College of Environmental Science and EngineeringNankai UniversityTianjin 300071China School of Geography Earth and Environment Sciences University of BirminghamBirmingham B152TTUK

A single particle aerosol mass spectrometer(SPAMS)was used to accurately quantify the contribution of vehicle non-exhaust emissions to particulate matter at typical road *** PM_(2.5),black carbon,meteorological parameters and traffic flow were recorded during the test *** daily trend for traffic flow and speed on TEDA Street showed obvious“M”and“W”characteristics.6.3 million particles were captured via the SPAMS,including 1.3 million particles with positive and negative spectral map *** Metal,High molecular Organic Carbon,Organic Carbon,Mixed Carbon,Elemental Carbon,Rich Potassium,Levo-rotation Glucose,Rich Na,SiO_(3) and other categories were *** particle number concentration measured by SPAMS showed a good linear correlation with the mass concentrations of PM_(2.5) and BC,which indicates that the particulate matter captured by the SPAMS reflects the pollution level of fine particulate ***,ECOC,OC,HM and crustal dust components were found to show high values from 7:00–9:00 AM,showing that these chemical components are directly or indirectly related to vehicle *** on the PMF model,7 major factors are *** relative contributions of each factor were determined:vehicle exhaust emission(44.8%),coal-fired source(14.5%),biomass combustion(12.2%),crustal dust(9.4%),ship emission(9.0%),tires wear(6.6%)and brake pads wear(3.5%).The results show that the contribution of vehicle non-exhaust to particulate matter at roadside environment is approximately 10.1%.Vehicle non-exhaust emissions are the focus of future research in the vehicle pollutant emission control field.

关键词： Non-exhaust emissions SPAMS PMF Roadside environment

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Pion transverse-momentum spectrum, elliptic flow, and Hanbury-Brown-Twiss interferometry in a viscous granular source model

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Chinese Physics C 2017年第8期41卷 78-92页

作者： Jing Yang wei-ning Zhang Yan-Yu Ren School of Physics and Optoelectronic Technology Dalian University of Technology Dalian Liaoning 116024 China Department of Physics Harbin Institute of Technology Harbin Heilongjiang 150006 China

We examine the evolution of quark-gluon plasma（QGP） droplets with viscous hydrodynamics and analyze the pion transverse-momentum spectrum, elliptic flow, and Hanbury-Brown-Twiss（HBT） interferometry in a granular source model consisting of viscous QGP droplets. The shear viscosity of the QGP droplet speeds up and slows down the droplet evolution in the central and peripheral regions of the droplet, respectively. The effect of the bulk viscosity on the evolution is negligible. Although there are viscous effects on the droplet evolution, the pion momentum spectrum and elliptic flow change little for granular sources with and without viscosity. On the other hand,the influence of viscosity on HBT radius Rout is considerable. It makes Rout decrease in the granular source *** determine the model parameters of granular sources using the experimental data of pion transverse-momentum spectrum, elliptic flow, and HBT radii together, and investigate the effects of viscosity on the model parameters. The results indicate that the granular source model may reproduce the experimental data of pion transverse-momentum spectrum, elliptic flow, and HBT radii in heavy-ion collisions of Au-Au at√s（NN）=200 GeV and Pb-Pb at√s（NN） =2.76 Te V in different centrality intervals. The viscosity of the droplet leads to an increase in the initial droplet radius and a decrease of the source shell parameter in the granular source model.

关键词： high-energy heavy-ion collisions pion interferometry elliptic flow granular source viscous hydrodynamics

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Assessment on Dietary Melamine Exposure from Tainted Infant Formula

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Biomedical and Environmental Sciences 2009年第2期22卷 100-103页

作者： XU-DONG JIA ning LI ZHU-TIAN WANG YUN-FENG ZHAO YONG-ning WU AND wei-XING YAN Institute of Nutrition and Food Safety Chinese Center for Disease Control and Prevention Beijing 100050 China

Objective To estimate the dietary melamine exposure in Chinese infants and young children from the consumption of melamine adulterated Sanlu infant formula. Methods Four age groups of infants and young children （3, 6, 12, and 24 months） were chosen as the assessed subjects and the maximum amount of infant formula consumption was estimated based on the recommended usage level in the package insert of Sanlu infant formula and other brands. Melamine was analyzed in 111 Sanlu infant fbrmula samples collected from the markets in Beijing and Gansu province using the LC-MS-MS with a limit of quantification of 0.05 mg/kg. Four levels of melamine concentration were chosen to estimate the dietary intakes, including the mean, median, 90th percentile, and maximum. Results The infants of 3 months had the highest intake of melamine, and with the increase of the age （inonth）, the intake decreased. Based on the median melamine concentration （1 000 mg/kg） as an example, the melamine intakes fur the infants of 3, 6, 12, and 24 months were 23.4, 21.4, 15.0, and 8.6 mg/kg bw/d, respectively. Conclusion Dietary melamine intakes from tainted Sanln infant formula significantly exceeded the TDI level （0.2 mg/kg bw/d） recommended by the WHO Expert Meeting in 2008. However, the present assessment has some limitations including the poor representative samples, the varied melamine concentrations in the adulterated Sanlu infant formula, and other brand infant formula possibly consumed by these infants.

关键词： Dietary exposure assessment Melamine Infant formula

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Causal associations between gastroesophageal reflux disease and essential hypertension: A bidirectional Mendelian randomization study

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World Journal of Clinical Cases 2024年第5期12卷 880-890页

作者： ning wei Ming-Hui Liu Yu-Hu Song Department of Gastroenterology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022Hubei ProvinceChina

BACKGROUND Clinical studies have reported that patients with gastroesophageal reflux disease(GERD)have a higher prevalence of *** To performed a bidirectional Mendelian randomization(MR)analysis to investi-gate the causal link between GERD and essential *** Eligible single nucleotide polymorphisms(SNPs)were selected,and weighted median,inverse variance weighted(IVW)as well as MR egger(MR-Egger)re-gression were used to examine the potential causal association between GERD and *** MR-Pleiotropy RESidual Sum and Outlier analysis was used to detect and attempt to reduce horizontal pleiotropy by removing outliers *** MR-Egger intercept test,Cochran’s Q test and“leave-one-out”sen-sitivity analysis were performed to evaluate the horizontal pleiotropy,heterogen-eities,and stability of single instrumental *** IVW analysis exhibited an increased risk of hypertension(OR=1.46,95%CI:1.33-1.59,P=2.14E-16)in GERD *** the same result was obtained in replication practice(OR=1.002,95%CI:1.0008-1.003,P=0.000498).Meanwhile,the IVW analysis showed an increased risk of systolic blood pressure(β=0.78,95%CI:0.11-1.44,P=0.021)and hypertensive heart disease(OR=1.68,95%CI:1.36-2.08,P=0.0000016)in GERD ***,we found an decreased risk of Barrett's esophagus(OR=0.91,95%CI:0.83-0.99,P=0.043)in essential hypertension *** We found that GERD would increase the risk of essential hypertension,which provided a novel prevent and therapeutic perspectives of essential hypertension.

关键词： Gastroesophageal reflux disease Essential hypertension Hypertensive heart disease Mendelian randomization study

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Identification of a novel FOXL2 mutation in a fourth-generation Chinese family with blepharophimosis-ptosis-epicanthus inversus syndrome

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International Journal of Ophthalmology(English edition) 2021年第4期14卷 504-509页

作者： wei-ning Rong Mei-Jiao Ma wei Yang Shi-Qin Yuan Xun-Lun Sheng Department of Ophthalmology Ningxia Eye HospitalPeople’s Hospital of Ningxia Hui Autonomous Region(First Affiliated Hospital of Northwest University for Nationalities)Yinchuan 750002the Ningxia Hui Autonomous RegionChina

AIM:To characterize the genetic causes and clinical features in a four-generation Chinese family with blepharophimosisptosis-epicanthus inversus syndrome(BPES).METHODS:Thirteen patients with BPES and eight healthy family members were included in this *** participants received routine ophthalmic *** target next-generation sequencing(NGS)was performed to determine the causative mutation for this *** silico analysis was also applied to predict the pathogenesis of identified ***:All patients had severe ptosis,normal intelligence,female patients have normal *** assessments revealed a heterozygous insertion variation in FOXL2 gene,c.672_701 ins GCGGCTGCCGC CGCAGCTGCTG CAGGCGCT(***234_Gly235 lins AAAAAAAAGA),carried by 13 patient but absent in all unaffected *** silico analysis supported the pathogenic nature of this highly conserved *** mutation resulted in the insertion of 10 amino acids into the encoded polyala nine chain,which increased the number of original polyalanine chains from 14 to 24,resulting in an extended ***:A novel FOXL2 mutation c.672_701 ins GCGGCTGCCGCCGCAGCTGCTGC AGGCGCT(***234_Gly235 lins AAAAAAAAGA)was identified in a large Chinese family with *** study amplified the genotypic spectrum of FOXL2-BPES and better illustrates its genotype-phenotypecorrelations,which provided a basis for elucidating the pathogenesis of BPES and genetic counseling.

关键词： blepharophimosis-ptosis-epicanthus inversus syndrome FOXL2 mutation Chinese

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