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| 1 | Climate as the dominant control on C_3 and C_4 plant abundance in the Loess Plateau: Organic carbon isotope evidence from the last glacial-interglacial loess-soil sequences显示文摘Abundance of C3 and C4 photosynthesis plants can be inferred relatively from stable carbon isotopic composi-tion of organic matter in soils. The samples from five sequences of the last glacial-interglacial loess-soil in the Chinese Loess Plateau have been measured for organic carbon isotopic ratios (d 13Corg). The organic carbon isotope data show that relative abundance (or biomass) of C4 plants was increased ca. 40% for each sampling site from the last glacial maximum (LGM) to Holocene optimum, and increased southeastward on the Loess Plateau during both periods of LGM and Holocene. Statistic analyses on the steady maximum d 13Corg values of Holocene soils and modern climatic data from the Loess Plateau and Inner Mongolia indicate that the C4 plant abundance increases with increasing temperature and decreasing precipitation. The C4 plant abundance is related much closer with mean April tem-perature and precipitation than annual. These results lead us to deduce following conclusions. First, temperature is the major factor for control on variations in C4 plant abundance in the Loess Plateau from the last glacial to interglacial. In the absence of favorable temperature condition, both of low moisture and low atmospheric CO2 concentration are insufficient to drive an expansion of the C4 plants in the plateau. Second, d 13Corg in the loess-paleosol sequences, as a proxy of the relative abundance of C4 plants in the Loess Plateau, could not be used as an indicator of changes in the summer monsoon intensity unless the tem-perature had changed without great amplitude. Since all C4 plants are grasses, finally, the increase of the C4 plants supports that forest has not been dominant in the ecosystem on the Loess Plateau during Holocene although precipitation and atmospheric CO2 were largely increased relative to those during LGM. | GU Zhaoyan, LIU Qiang, XU Bing, HAN Jiamao, YANG Shiling, DING Zhongli & LIU Tungsheng Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China Correspondence should be addressed to Gu Zhaoyan (e-mail: zgu@ 95777.com) | 2003 | Chinese Science Bulletin2003，48，12： | 14 |
| 2 | Counterintuitive Ballistic and Directional Liquid Transport on a Flexible Droplet Rectifier显示文摘Achieving the directional and long-range droplet transport on solid surfaces is widely preferred for many practical applications but has proven to be challenging.Particularly,directionality and transport distance of droplets on hydrophobic surfaces are mutually exclusive.Here,we report that drain fly,a ubiquitous insect maintaining nonwetting property even in very high humidity,develops a unique ballistic droplet transport mechanism to meet these demanding challenges.The drain fly serves as a flexible rectifier to allow for a directional and long-range propagation as well as self-removal of a droplet,thus suppressing unwanted liquid flooding.Further investigation reveals that this phenomenon is owing to the synergistic conjunction of multiscale roughness,structural periodicity,and flexibility,which rectifies the random and localized droplet nucleation(nanoscale and microscale)into a directed and global migration(millimeter-scale).The mechanism we have identified opens up a new approach toward the design of artificial rectifiers for broad applications. | Lei Wang Jing Li Bo Zhang Shile Feng Mei Zhang Dong Wu Yang Lu Ji Jung Kai Jing Liu Zuankai Wang Lei Jiang | 2020 | Research2020，，1： | 6 |
| 3 | Theoretical investigation on structures,electronic spectra and nonlinear optical properties of gold compounds [X-{Au(PMe_3)}_2]显示文摘The structures,electronic spectra,polarizability and third-order nonlinear optical properties of six gold compounds [X-{Au(PMe3)}2]were investigated by density functional theory(DFT)B3LYP and BhandHLYP methods.It was found that the calculation methods and basis set are rational for the object of study,and molecular structures change slightly when PPh3 is replaced by PMe3.The spatial effects of the bridging section have a significant influence on the polarizability,but indistinctive to the third-order nonlinear optical(NLO)coefficient.As a result of the conjugated effect in different compounds,the third-order polarizability of molecule 1a is the smallest,while that of molecule 2a is the largest.Au has donor ability in molecule 1a but acceptor ability in molecules 2a-6a by analyzing the electronic spectra and frontier molecular orbitals constitute maximal absorption,which indicates the contribution of Au to NLO properties in the six molecules is different. | MA NaNa,QIU YongQing,SUN ShiLing,LIU ChunGuang,FAN Min & SU ZhongMin Institute of Functional Material Chemistry,Faculty of Chemistry,Northeast Normal University,Changchun 130024,China | 2010 | Science China Chemistry2010，53，5： | 3 |
| 4 | Comparative transcriptomic insights into the mechanisms of electron transfer in Geobacter co-cultures with activated carbon and magnetite显示文摘Both activated carbon and magnetite have been reported to promote the syntrophic growth of Geobacter metallireducens and Geobacter sulfurreducens co-cultures, the first model to show direct interspecies electron transfer (DIET); however, differential transcriptomics of the promotion on co-cultures with these two conductive materials are unknown. Here, the comparative transcriptomic analysis of G. metallireducens and G. sulfurreducens co-cultures with granular activated carbon (GAC) and magnetite was reported. More than 2.6-fold reduced transcript abundances were determined for the uptake hydrogenase genes of G. sulfurreducens as well as other hydrogenases in those co-cultures to which conductive materials had been added. This is consistent with electron transfer in G. metallireducens-G. sulfurreducens co-cultures as evinced by direct interspecies electron transfer (DIET). Transcript abundance for the structural component of electrically conductive pili (e-pili), PilA, was 2.2-fold higher in G. metallireducens, and, in contrast, was 14.9-fold lower in G. sulfurreducens in co-cultures with GAC than in Geobacters co-cultures without GAC. However, it was 9.3-fold higher in G. sulfurreducens in co-cultures with magnetite than in Geobacters co-cultures. Mutation results showed that GAC can be substituted for the e-pili of both strains but magnetite can only compensate for that of G. sulfurreducens, indicating that the e-pili is a more important electron acceptor for the electron donor strain of G. metallireducens than for G. sulfurreducens. Transcript abundance for G. metallireducens c-type cytochrome gene GMET_RS14535, a homologue to c-type cytochrome gene omcE of G. sulfurreducens was 9.8-fold lower in co-cultures with GAC addition, while that for OmcS of G. sulfurreducens was 25.1-fold higher in co-cultures with magnetite, than in that without magnetite. Gene deletion studies showed that neither GAC nor magnetite can completely substitute the cytochrome (OmcE homologous) of G. metallireducens but compensate for the cytochrome (OmcS) of G. sulfurreducens. Moreover, some genes associated with central metabolism were up-regulated in the presence of both GAC and magnetite; however, tricarboxylic acid cycle gene transcripts in G. sulfurreducens were not highly-expressed in each of these amended co-cultures, suggesting that there was considerable redundancy in the pathways utilised by G. sulfurreducens for electron transfer to reduce fumarate with the amendment of GAC or magnetite. These results support the DIET model of G. metallireducens and G. sulfurreducens and suggest that e-pili and cytochromes of the electron donor strain are more important than that of the electron acceptor strain, indicating that comparative transcriptomics may be a promising route by which to reveal different responses of electron donor and acceptor during DIET in co-cultures. | Shiling Zheng Fanghua Liu Meng Li Leilei Xiao Oumei Wang | 2018 | Science China(Life Sciences)2018，61，7： | 2 |
| 5 | Artesunate and Dihydroartemisinin Inhibit Rabies Virus Replication显示文摘Rabies is caused by infection of rabies virus(RABV)and remains a serious threat to the global public health.Except for the requirement for cold chain and high cost of human rabies immune globulin,no small molecule drugs are currently available for clinical treatment of rabies.So,it is of great importance to identify novel compounds that can effectively inhibit RABV infection.Artesunate(ART)and dihydroartemisinin(DHA),two derivatives of artemisinin,are widely used for treatment of malaria in adults and children,showing high safety.In this study,we found that both ART and DHA were able to inhibit RABV replication in host cells at a low concentration(0.1μmol/L).The antiviral effects of ART and DHA were independent of viral strains and cell lines.Pre-treatment with ART or DHA for 2 h in vitro did not affect the viral replication in host cells,implying that ART and DHA neither reduced the viability of RABV directly nor inhibited the binding and entrance of the virus to host cells.Further studies revealed that ART and DHA inhibited RABV genomic RNA synthesis and viral gene transcription.Treatment with ART or DHA(5 mg/kg)by intramuscular injection improved,to some extent,the survival rate of RABV-challenged mice.Combination treatment with derivatives of artemisinin and mannitol significantly improved the survival rate of RABV-challenged mice.The results suggest that ART and DHA have a great potential to be explored as new anti-rabies agents for treatment of rabies. | Jun Luo Yue Zhang Yang Wang Qing Liu Jiesen Li Hongling He Yongwen Luo Shile Huang Xiaofeng Guo | 2021 | Virologica Sinica2021，36，4： | 2 |
| 6 | Post-transcriptional gene silencing signal could move rapidly and bidirectionally in grafted Arabidopsis thaliana显示文摘RNA interference (RNAi), one of the newly found ways for post-transcriptional gene si- lencing, has been widely used to investigate gene functions through transgenic methods for introducing an RNA silencing signal into plants. In the present study, we constructed a dexamethazone (DEX)-inducible RNAi binary vector harboring a specific sequence fragment (168-bp) homologous to KatB and KatC, two kinesin isoform genes of Arabidopsis, which were proved to result in the post-transcriptional gene si- lencing of KatB and KatC in DEX-induced transgenic plants. RT-PCR and Northern blot analysis on trans- genic homozygous Arabidopsis (termed as RNAi-type plants) showed that DEX inducement causes KatB and KatC mRNA degradation. With a simplified method, Arabidopsis grafting was effectively per- formed between RNAi-type and wild-type lines. The target gene mRNA levels were tested based on semi-quantitative RT-PCR. Our results demonstrateed that DEX-induced gene silencing signals could result in a reduction in KatB and KatC mRNA in the wild-type rootstocks or scions, indicating that silencing signals of RNAi could be transmitted bidirectionally across the graft junction whether RNAi-plants were scions or stocks. In contrast to the previously reported results on grafted tobacco, the transmission of post- tran- scriptional gene silencing signals caused by RNAi in grafted Arabidopsis is more effective than that in to- bacco. | LI Ming JIANG Shiling WANG Youqun LIU Guoqin | 2006 | Chinese Science Bulletin2006，51，3： | 2 |
| 7 | Cadmium activates the mitogen-activated protein kinase (MAPK) pathway via induction of reactive oxygen species and inhibition of protein phosphatases 2A and 5显示文摘 | Long Chen Lei Liu Shile Huang | 2008 | Free Radical Biology and Medicine2008，，： | 1 |
| 8 | Moisture electricity generation:Mechanisms,structures,and applications显示文摘With the increasing concern of energy crisis and global warming,the whole globe is in an urgent need to develop clean energy that comes from renewable sources and does not harm the environment to fulfill the carbon neutralization and green earth commitments.Water is the most abundant substance on earth and has been historically used as the major energy carriers in watermill,water wheel,hydroelectricity.Moisture electricity generation is another emerging technology that can convert lowgrade energy in the widely-accessible moisture to electricity simply by the integration of moisture,electrodes,deliberatelydesigned hygroscopic films.Recent research on moisture electricity generators(MEGs)led to the creation of a series of selfpowered sensors and in some occasions they have replaced conventional batteries to power miniaturized devices.In this review,the basic mechanisms of MEGs are firstly clarified,three categories of them,i.e.,gradient structure,homogeneous structure,and heterogeneous structure depending on the structure of hygroscopic films,are then introduced.Furthermore,recent advances in the fabrication,characteristics,performance of MEGs are summarized,MEGs with continuous or transient output that could be applied in self-powered sensors and power sources are discussed.Finally,some remaining challenges and our perspectives on MEGs are highlighted. | Quanmao Wei Wenna Ge Zichao Yuan Shixu Wang Chenguang Lu Shile Feng Lei Zhao Yahua Liu | 2023 | Nano Research2023，16，5： | 1 |
| 9 | Efficient and Practical Syntheses of Enantiomerically Pure (S)-(−)-Norcryptostyline Ⅰ, (S)-(−)-Norcryptostyline Ⅱ, (R)-(+)-Salsolidine and (S)-(−)-Norlaudanosine via a Resolution-Racemization Method显示文摘Four racemic tetrahydroisoquinolines(RS)-(±)-1-4 were prepared from homoveratrylamine via amidation,Bischler-Napieralski reaction and the subsequent reduction.The enantiomerically pure tetrahydroisoquinolines(S)-(−)-norcryptostyline Ⅰ[(S)-(−)-1],(S)-(−)-norcryptostyline Ⅱ[(S)-(−)-2],(R)-(+)-salsolidine[(R)-(+)-3]and(S)-(−)-norlaudanosine[(S)-(−)-4]were then obtained in 45%,40%,41%and 38%yields,respectively,via resolution of the racemic compounds(RS)-(±)-1-4 with half equivalent of chiral acids.In addition,the enantiomerically enriched compounds(R)-(+)-1,(R)-(+)-2,(S)-(−)-3 and(R)-(+)-4 from the mother liquors were efficiently racemized via a one-pot redox method in almost quantitative yields. | Ruiheng Zhu Zhangli Xu Wei Ding Shiling Liu Xiaoxin Shi Xia Lu | 2014 | Chinese Journal of Chemistry2014，32，10： | 1 |
| 10 | Lactate dehydrogenase a in cancer: A promising target for diagnosis and therapy显示文摘 | Ping Miao Shile Sheng Xiaoguang Sun Jianjun Liu Gang Huang | 2013 | IUBMB Life2013，，11： | 1 |
| 11 | Helium Bubble Growth in He^(+) Ions Implanted 304L Stainless Steel Processed by Laser Powder Bed Fusion During Post-Irradiation Annealing at 600℃显示文摘The abundancy of defect sinks in the microstructure of laser powder bed fusion(LPBF) processed austenitic stainless steels was found to be beneficial for helium resistance.In the current study,the influence of the novel microstructure in LPBF processed 304 L on the helium bubble growth behaviour was investigated using transmission electron microscopy in samples implanted with He^(+) ion and post-irradiation annealing treated at 600℃ for 1 h.Two variants of LPBF processed 304 L samples were used,one in as-built condition and the other solution-annealed.The comparison between the two samples indicated that the helium bubble growth was inhibited and remained stable in the as-built sample but coarsened significantly in the solution-annealed sample.The sub-grain boundaries and oxide nano-inclusions acted as defect sinks to trap helium atoms and inhibited the growth of helium bubble in the as-built sample under the post-irradiation annealing conditions used. | Hui Liu Shiling Min Menglei Jiang Fuzhong Chu Ying Li Zhuoer Chen Kai Zhang Juan Hou Aijun Huang | 2022 | Acta Metallurgica Sinica(English Letters)2022，35，9： | 1 |
| 12 | Review on hygienical components of sweet potato and their functions 显示文摘 | Liu Chao Wang Zheng Lan Shile | 2008 | Scientific Paper2008，8，1： | 1 |
| 13 | Effects of Strain Rate on High-Pressure Nonpremixed N-heptane Autoignition in Counterflow 显示文摘 | LIU Shiling Hewson J C Chen J H | 2004 | Combust & Flame2004，137，： | 1 |
| 14 | Designing regional pattern for ecosystem restoration:A case study显示文摘Designing regional pattern is challenging for ecosystem restoration both in theory and in practice. The present study proposed a new approach to design regional pattern for ecosystem restoration with a case in the arid valley of Upper Minjiang River, SW China. The procedures are: (1) Determine the regional pattern of main environmental factors based on the relationships between the important environmental factors and the main geographical factors generated from DEM data. (2) Overlay the maps of the main environmental factors. (3) Generate a lookup table according to the species selection rule we proposed to link the candidate restoration species to the main environmental factors.(4) Determine the regional pattern of ecosystem restoration by positioning the restoration species in the map of environmental factors according to the lookup table. The regional restoration pattern designed in this way would be applicable not only to restoring a region, but also to predicting the future landscape change. | LI Guoqiang , MA Keming, FU Bojie & LIU Shiling State Key Lab of Systems Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China Department of Water Environment, China Institute of Water Resources and Hydropower Research, Beijing 100038, China School of Environmental Sciences, Beijing Normal University, Beijing 100875, China | 2006 | Science China(Technological Sciences)2006，49，z1： | 1 |
| 15 | Cadmium induction of reactive oxygen species activates the mTOR pathway, leading to neuronal cell death显示文摘 | Long Chen Baoshan Xu Lei Liu Yan Luo Hongyu Zhou Wenxing Chen Tao Shen Xiuzhen Han Christopher D. Kontos Shile Huang | 2010 | Free Radical Biology and Medicine2010，，5： | 1 |
| 16 | DFT study on second-order nonlinear optical properties of Pt (Ⅱ) complexes with different chromophores显示文摘DFT B3LYP/LANL2DZ method was employed to calculate electron properties and the second-order nonlinear optical(NLO) respond of platinum(Ⅱ) complexes which have been synthesized by Weinstein group.4,7-diphenyl-1,10-phenanthroline shows the ability to push electron in these complexes.Metal Pt plays a balancing charge role.Comparing complex 1b-6b with complex a,the βvec value of complex 1b-5b is larger than one of complex a,while the βvec value of complex 6b is smaller than one of com-plex a.In these seven complexes,the βvec values of complexes increase with decreasing of the energy difference between HOMO and LUMO.Moreover,the electron transfers from deeper layer occupied orbitals to empty orbitals have a distinct contribution to second-order NLO coefficient. | LIU XiaoDong,QIU YongQing,CHEN Hui,LI Na,SUN ShiLing & SU ZhongMin Institute of Functional Material Chemistry,Faculty of Chemistry,Northeast Normal University,Changchun 130024,China | 2009 | Science China Chemistry2009，52，2： | 1 |
| 17 | Cadmium activates mTOR pathway by upregulating NOX2 and downregu- lating PTEN and AMPK activity leading to apoptosis of neuronal cells 显示文摘 | Long Chen Lei Liu and Shile Huang | 2009 | AACR Meeting Abstracts2009，，： | 1 |
| 18 | Reductive degradation of chloramphenicol by Geobacter metallireducens显示文摘Geobacter metallireducens is known to be capable of removing nitroaromatic compounds via an oxidation mode. However, little attention has been paid to investigate the reductive removal of chlorinated nitroaromatic compounds by G. metallireducens. In this study, G. metallireducens was used to reduce chloramphenicol(CAP), a typical chlorinated nitroaromatic antibiotic. Cyclic voltammograms and chronoamperometry highlighted a higher peak current for CAP reduction by G. metallireducens compared to the control without bacteria. G. metallireducens efficiently reduced CAP(20 mg/L) with acetate as the sole electron donor, and the removal efficiency reached(97.6±4.9)% within 6 d. Aromatic amine(AMCl2), AMCl(dechlorinated AMCl2) and AM(dechlorinated AMCl) were identified as reduction products by liquid chromatography-mass spectrometry. However, the removal efficiency declined to(25.0±3.6)% when the CAP dosage increased to 80 mg/L. Transcriptomic analysis indicated the significant upregulation of genes related to electron transfer, such as pilus assembly protein gene(2.8 folds), NADH-quinone oxidoreductase subunit K2 gene(4.5 folds) and many c-type cytochrome genes such as cytochrome c biogenesis protein Res B(Gmet 2901, 4.6 folds), cytochrome c(Gmet 0335, 4.4 folds) and cytochrome c7(Gmet 2902, 3.4 folds). Furthermore, a gene related to chlorinated contaminant removal(Gmet 1046, 5.4 folds) was also upregulated, possibly resulting in enhanced CAP reduction. This work deepened our knowledge of the bioremediation ability of G. metallireducens with respect to environmental contaminants and provided a potential strategy to treat antibiotics with electrochemically active bacteria. | XU HengDuo XIAO LeiLei ZHENG ShiLing ZHANG YueChao LI JiaJia LIU FangHua | 2019 | Science China(Technological Sciences)2019，62，10： | 0 |
| 19 | Theoretical study on stability and nonlinear optical properties of tetrahydropyrrole diradical and its isoelectronic systems in different electronic states显示文摘The polarizabilities and hyperpolarizabilities of the tetrahydropyrrole diradical in different electronic states have been investigated using ab initio and density functional theory(DFT) methods combined with the finite field(FF) approach.The polarizability average value αs is a maximum for the singlet state,while that for the closed-shell is a minimum.The trend in second hyperpolarizability average value γ is in good agreement with that for αs.The γ values of the singlet and triplet states are,respectively,about 3 and 2 times larger than that of the closed-shell.The order of the first hyperpolarizability total effective value βtot is βtot(closed-shell) > βtot(singlet) > βtot(triplet).The αs,βtot,and γ values of different electronic states obtained using the B3LYP and MP4SDQ methods are close to those obtained using the reliable CCSD method.The nonlinear optical(NLO) properties of two systems isoelectronic with the tetrahydropyrrole diradical - cyclopentane and tetrahydrofuran diradicals - show that the polarizabilities and hyperpolarizabilities of these systems are all smaller than those of the tetrahydropyrrole diradical in the three electronic states. | SUN XiaoNa QIU YongQing SUN ShiLing LIU ChunGuang DU YanQing SU ZhongMin | 2011 | Science China Chemistry2011，54，7： | 0 |
| 20 | Decoration of carbon encapsulated nitrogen-rich MoxN with few-layered MoSe2 nanosheets for high-performance sodium-ion storage显示文摘Transition metal nitrides have become the focus of research in sodium ion batteries(SIBs)due to their unique metal properties and high theoretical capacity.However,the low actual capacity is still the main bottleneck for their application.Herein,using Mo-aniline frameworks as precursors,the carbon encapsulated nitrogen-rich Mo_(x)N is decorated by few-layered MoSe_(2) nanosheets(MoSe_(2)@Mo_(x)N/C-I)after the facile calcinating,selenizing,and nitriding.The carbon encapsulation can effectively strengthen the structural stability of Mo_(x)N.The nitrogen-rich Mo_(x)N and decoration of few-layered MoSe_(2) can create rich heterointerfaces and extra active sites for rapid sodium-ion storage,thus promoting reaction kinetics and improving actual capacity.The MoSe_(2)@Mo_(x)N/C-I as an anode achieves a large reversible capacity of 522.8 mAh g^(-1)at 0.1 A g^(-1),and 254.3 mAh g^(-1)capacity is obtained after 6000 cycles at 5.0 A g^(-1),showing signally improved sodium-ion storage properties.The storage mechanisms and kinetic behaviors are described systematically via the advanced testing techniques and density functional theory(DFT)calculations.It is found that the nitrogen-rich Mo_(x)N as the substrate is the basis of long cycling stability,and the few-layered MoSe_(2) are the key to improving actual capacity.This work indicates that the decoration of few-layered selenides has a broad application prospect in high-performance metal-ion batteries. | Tao Lu Baoquan Liu Fanyan Zeng Guo Cheng Shile Chu Meilan Xie Zhi Chen Zhaohui Hou | 2022 | Journal of Energy Chemistry2022，31，11： | 0 |
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