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| 1 | Research Developments and Prospects on Microseismic Source Location in Mines显示文摘 | Jiulong Cheng Guangdong Song Xiaoyun Sun Laifu Wen Fei Li | 2018 | Engineering2018,4,5: | 10 |
| 2 | Phosphorylation of LTF1, an MYB Transcription Factor in Populus, Acts as a Sensory Switch Regulating Lignin Biosynthesis in Wood Cells显示文摘Lignin is specifically deposited in plant secondary cell walls,and initiation of lignin biosynthesis is regulated by a variety of developmental and environmental signals.However,the mechanisms governing the regulation of lignin biosynthesis remain to be elucidated.In this study,we identified a lignin biosynthesis-associated transcription factor(LTF)from Populus,LTF1,which binds the promoter of a key lignin biosynthetic gene encoding 4-coumarate-CoA ligase(4CL).We showed that LTF1 in its unphosphorylated state functions as a regulator restraining lignin biosynthesis.When LTF1 becomes phosphorylated by PdMPK6 in response to external stimuli such as wounding,it undergoes degradation through a proteasome pathway,resulting in activation of lignification.Expression of a phosphorylation-null mutant version of LTF1 led to stable protein accumulation and persistent attenuation of lignification in wood cells.Taken together,our study reveals a mechanism whereby LTF1 phosphorylation acts as a sensory switch to regulate lignin biosynthesis in response to environmental stimuli.The discovery of novel modulators and mechanisms modifying lignin biosynthesis has important implications for improving the utilization of cell-wall biomass. | Jinshan Gui Laifu Luo Yu Zhong Jiayan Sun Toshiaki Umezawa Laigeng Li | 2019 | Molecular Plant2019,12,10: | 10 |
| 3 | A comparative study and evaluation of sulfamethoxazole adsorption onto organo-montmorillonites显示文摘Three organo-montmorillonites were prepared using surfactants,and their adsorption behaviors toward sulfamethoxazole(SMX)were investigated.The surfactants used were cetyltrimethyl ammonium bromide(CTMAB),3-(N,N-dimethylhexadecylammonio)propane sulfonate(HDAPS)and 1,3-bis(hexadecyldimethylammonio)-propane dibromide(BHDAP).The properties of the organo-montmorillonites were characterized by X-ray diffraction,scanning electron microscopy and N2adsorption–desorption isotherm measurements.Results showed that the interlayer spacing of montmorillonite was increased and the surface area as well as the morphology were changed.Batch adsorption experiments showed that the surfactant loading amount had a great effect on the adsorption of SMX.The adsorption process was p H dependent and the maximum adsorption capacity was obtained at p H 3 for HDAPS-Mt,while CTMAB-Mt and BHDAP-Mt showed a high removal efficiency at 3–11.The adsorption capacity increased with the initial SMX concentration and contact time but decreased with increasing solution ionic strength.Kinetic data were best described by the pseudo second-order model.Equilibrium data were best represented by the Langmuir model,and the Freundlich constant(n)indicated a favorable adsorption process.The maximum adsorption capacity of SMX was 235.29 mg/g for CTMAB-Mt,155.28 mg/g for HDAPS-Mt and 242.72 mg/g for BHDAP-Mt.Thermodynamic parameters were calculated to evaluate the spontaneity and endothermic or exothermic nature.The adsorption mechanism was found to be dominated by electrostatic interaction,while hydrophobic interaction played a secondary role. | Laifu Lu Manglai Gao Zheng Gu Senfeng Yang Yuening Liu | 2014 | Journal of Environmental Sciences2014,26,12: | 7 |
| 4 | Studies of the Genotoxicity of Glycidyl Methacrylate (GMA)显示文摘The following experiments were conducted to evaluate the genotoxic effects of GMA (glycidyl methacrylale) on mammalian and human cells.(1) Using the absorption spectrum shift method in vitro, we observed that the maximums of calf thymus DNA and GMA were shifted toward longer wavelengths (a change of more than 15nm) and the absorbance decreased after incubation at room temperature for 15min or more.The result indicates that binding of DNA and GMA had occurred.The binding force is strong, not affected by the addition of concentrated sodium chloride solution, and only slightly decreased by the addition of 8 M urea solution.Therefore the bond between DNA and GMA might be covalent.(2) In cell cultures, unscheduled DNA synthesis (UDS) in human and/or rat lymphocyte was induced and DNA semiconserva-tive replication was inhibited by GMA at concentrations of less than 5.2 mM.(3) Sperm abnormality tests and assays of UDS in germ cells of male mice were conducted to study the in vivo genotoxicity of GMA.The results revealed that GMA could damage DNA, increase sperm abnormality frequency, and reduce the number of sperm cells, 1990 Academic Press.Inc. | DAYING XIE, WEI ZHANG, LAIFU CAO, WENQING SUN, ZHONGSHENG LI, QING GAO, YILI WU, HUILAN GAO, HUIFANG YANG, JIM ZUO,~* AND FUDE FANG~* Institute oF Occupational Medicine. Chinese Academy ol Preventive Medicine. Beijing 100050. and *Institute of Basic Medical Sciences, Chinese Academy ol Medical Sciences. Beijing 100730, China | 1990 | Biomedical and Environmental Sciences1990,3,3: | 7 |
| 5 | Research on magnetic testing method of stress distribution显示文摘 | LI Luming Huang Songling Wang Laifu | 2002 | Transaction of Nonferrous Metals Society of China2002,12,3: | 1 |
| 6 | Identifying Wheat Parents by Using Fuzzy Mathematics显示文摘 | Liu Laifu | 1979 | Journal of Beijing Normal University(Natural Science)1979,,3: | 1 |
| 7 | Bisphenol A induces oxidative stress-associated DNA damage in INS-1 cells显示文摘 | Fei Xin Liping Jiang Xiaofang Liu Chengyan Geng Wenbin Wang Laifu Zhong Guang Yang Min Chen | 2014 | Mutation Research - Genetic Toxicology and Environmental Mutagenesis2014,,: | 1 |
| 8 | Boric acid inhibits LPS-induced TNF- α formation through a thiol-dependent mechanism in THP-1 cells显示文摘 | Jun Cao Liping Jiang Xiaomei Zhang Xiaofeng Yao Chengyan Geng Xiangxin Xue Laifu Zhong | 2008 | Journal of Trace Elements in Medicine and Biology2008,,: | 1 |
| 9 | Hydroxytyrosol inhibits pro-inflammatory cytokines,iNOS,and COX-2 expression in human monocytic cells显示文摘 | ZHANG Xiaomei CAO Jun ZHONG Laifu | | 0,,06: | 1 |
| 10 | Two nonel configurations of OADMs based on MZIs with FBGs 显示文摘 | Fang Laifu Wang Jianquan Lin Mianfen | 2000 | Optical Interconnects for Telecommunica- tion and Data Communication2000,4225,: | 1 |
| 11 | Stable demographic limit cycles in a laboratory populations of tribolium castaneum 显示文摘 | Desharnais R A Liu Laifu | 1987 | I Anim Ecol1987,56,88: | 1 |
| 12 | Protective effect of hydroxytyrosol against acrylamide-induced cytotoxicity and DNA damage in HepG2 cells显示文摘 | Xiaomei Zhang Jun Cao Liping Jiang Chenyan Geng Laifu Zhong | 2009 | Mutation Research - Fundamental and Molecular Mechanisms of Mutagenesis2009,,1: | 1 |
| 13 | Attractive Behavior for a Logistic Population with Age-Dependent Reproduction显示文摘1IntroductionAsweknow,theLogisticmodelformedN′=r(1-N/K)Nwasafundamentalmodelofbiologicalpopulationdynamicswithdensitydepende... | Haiyang HUANG and Laifu LIU (Dept. of Math. Beijing Normal University, Beijing, 100875, China) E-mail: hhywsg@ns.bnu.edu.cn | 1998 | Communications in Nonlinear Science and Numerical Simulation1998,3,1: | 0 |
| 14 | “3+1”—To Create a New Power Pattern in Northeast China显示文摘Northeast region was an old industrial base of China,but after three economic flourishing areas newly arose in Zhujiang River Delta,Changjiang River Delta and Beijing-Tianjin-Tangshan Region,this old industrial base has been economically stagnated,paced haltingly. | Yu Laifu Fan Wei Ye Qing(译) | 2007 | Electricity2007,18,2: | 0 |
| 15 | Molecular understanding of wood formation in trees显示文摘Trees convert and store the majority of their photosynthetic products in wood which is an essential renewable resource much in demand by human society.Formation of wood follows a process of consecutive cell developmental stages,from vascular cambium proliferation,cell expansion and differentiation,secondary cell wall deposition to programmed cell death,which is controlled by the functionality of complex molecular networks.What are the molecular networks involved in wood formation?How do the molecular networks act in a way to generate wood tissue during tree growth?What are the regulatory modules that lead to the formation of various wood characteristics?The answers to these questions are fundamental to understanding how trees grow,as well as how we can genetically engineer trees with desired properties of wood for human needs.In recent years,a great deal of interest has been invested in the elucidation of wood formation at the molecular level.This review summarizes the current state of understanding of the molecular process that guides wood formation in trees. | Laifu Luo Laigeng Li | 2022 | Forestry Research2022,2,1: | 0 |
| 16 | THE DISCRETE DYNAMICS FOR COMPETITIVE POPULATIONS OF LOTKA-VOLTERRA TYPE显示文摘THEDISCRETEDYNAMICSFORCOMPETITIVEPOPULATIONSOFLOTKA-VOLTERRATYPELIULAIFUANDGONGBINAbstract:Thediscretedynamicsforcompetitionp... | LIU LAIFU AND GONG BIN | 1995 | Applied Mathematics(A Journal of Chinese Universities)1995,10,4: | 0 |
| 17 | Effects of reproductive experience on paternal behavior,levels of testosterone,prolactin in serum and dendritic spines in medial prefrontal cortex of mandarin voles显示文摘Maternal behaviors and brains change dramatically with pregnancy,parturition and other mothering experiences.However,whether paternal behavior,brain plasticity and levels of relevant hormones also change along with fathering experience and pups’age remains unclear.Using socially monogamous mandarin voles(Micro-tus mandarinus),we found that experienced fathers exhibited more active paternal behaviors,such as licking,retrievals and nest building,but less paternal care,such as huddling,than new fathers.The high levels of licking and nest building appeared in the earlier days of their mate’s lactation.Experienced fathers retrieved 9–13-day-old pups more frequently.However,these paternal behaviors did not show significant changes with age of pups in new fathers.In addition,experienced fathers had dramatically higher prolactin levels than new fathers but had similar concentrations of testosterone to new fathers.New fathers had lower levels of testosterone but higher levels of prolactin than new paired males.The fathers had higher prolactin levels in the earlier days of their mate’s lactation.The new and experienced fathers had similar dendritic length and spine density on pyramidal neurons in the medial prefrontal cortex but displayed higher levels than new paired males.Taken together,these results indicate that reduction of testosterone levels and increase of prolactin levels may be associated with initiation of paternal care.Fathering experience significantly affects levels of parental care and paternal behaviors toward different aged pups,and brain plasticity can also be enhanced by transition to fatherhood. | Bo WANG Laifu LI Zhixiong HE Limin WANG Siyi ZHANG Hui QIAO Rui JIA Fadao TAI | 2018 | Integrative Zoology2018,13,6: | 0 |
| 18 | Difficulties and Solutions for Desulphurization of Thermal Power Plants in China显示文摘As coal is the most important primary energy in China, SO2 , the main pollutant of coal-fired power plantsseriously pollutes the environment in the course of energy utilization and conversion. Flue gas desulphurization is inevitable in China, however, it is rather difficult to reach the stipulated standards without any compulsory administrative measures of the government. What are the exact difficulties and solutions for the desulphurization in power plants? | Yu Laifu Liaoning Electric Power Industry Association Wang Ningling | 2008 | Electricity2008,19,1: | 0 |
| 19 | New Energies Cannot Be Developed Through Subsidies Alone显示文摘Considering both China's energy security and the non-renewability and scarcity of fossil fuels,developing new energies,realizing the transformation of the nation's energy structure,and reducing the reliance on foreign energy resources will be the long-held goals of the national energy policy.In recent years,the Chinese government has introduced a series of preferential policies to promote the development of new energies.The latest policy on electricity price adjustment announced at the end of last year,for instance,involved the standard rise of subsidies for renewable energy,which is expected to facilitate the development of new energies. | Yu Laifu | 2012 | Electricity2012,23,5: | 0 |