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Geographic Variation of Rice Yield Response to Past Climate Change in China

Journal of Integrative Agriculture 2014年第7期13卷 1586-1598页

作者： YANG Jie xiong Wei YANG xiao-guang CAO Yang FENG Ling-zhi College of Resources and Environmental Sciences China Agricultural University Institute of Environment and Sustainable Development in Agriculture Chinese Academy of Agricultural Sciences International Institute for Applied Systems Analysis (IIASA) Ecosystems Services and Management Program Laxenburg 2361 Austria Department of Agricultural and Biological Engineering University of Florida Gainesville FL 32600-0570 USA

Previous studies demonstrated climate change had reduced rice yield in China, but the magnitude of the reduction and the spatial variations of the impact have remained in controversy to date. Based on a gridded daily weather dataset, we found there were obvious changes in temperatures, diurnal temperature range, and radiation during the rice-growing season from 1961 to 2010 in China. These changes resulted in a signiifcant decline of simulated national rice yield （simulated with CERES-Rice）, with a magnitude of 11.5%. However, changes in growing-season radiation and diurnal temperature range, not growing-season temperatures, contributed most to the simulated yield reduction, which conifrmed previous estimates by empirical studies. Yield responses to changes of the climatic variables varied across different rice production areas. In rice production areas with the mean growing-season temperature at 12-14＆#176;C and above 20＆#176;C, a 1＆#176;C growing-season warming decreased rice yield by roughly 4%. This decrease was partly attributed to increased heat stresses and shorter growth period under the warmer climate. In some rice areas of the southern China and the Yangtze River Basin where the rice growing-season temperature was greater than 20＆#176;C, decrease in the growing-season radiation partly interpreted the widespread yield decline of the simulation, suggesting the signiifcant negative contribution of recent global dimming on rice production in China＇s main rice areas. Whereas in the northern rice production areas with relatively low growing-season temperature, decrease of the diurnal temperature range was identiifed as the main climatic contributor for the decline of simulated rice yield, with larger decreasing magnitude under cooler areas.

关键词： climate change yield responses rice China

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Synergistically enhanced ORR and HER performance on Co-N-C coupled in-situ generated PtCo intermetallic

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Journal of Energy Chemistry 2025年第1期100卷 721-729页

作者： Guanyu Luo Min Song Lulu An xiao Huang Qian Zhang Chenhao Zhang Tao Shen Shuang Wang Deli Wang Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology) Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology

Integrating multi-scale sites in a composite catalyst is vital to realize efficient ***,a synergistic composite catalyst consisting of Co atomic sites and in-situ generated PtCo intermetallic compounds （IMCs）(o-PtCo@CoNC) is proposed through Co pre-anchoring and subsequent impregnation-reduction *** loading of Co atoms provides a chance for in-situ generating PtCo ordered intermetallic *** remaining Co single atoms and PtCo IMCs construct synergistic electrocatalytic *** from the ordered structure,synergistic effect of Pt Co IMCs and Co single atoms,o-PtCo@CoNC exhibits excellent electrocatalytic performance for oxygen reduction reaction （ORR） and hydrogen evolution reaction （HER） with mass activity of 1.21 A mgPt-1（at 0.9 V） and5.70 A mgPt-1（at an overpotential of 100 mV）,***,o-PtCo@CoNC delivers negligible loss of half-wave potential and overpotential during long-term stability test in acid solutions,with 13 mV decay after 50,000 potential cycles for ORR and a 2.7 mV decay after 20,000 potential cycles for *** integration strategy of single-atomic sites coupled IMCs paves the way for enhancing the activity and durability of Pt-based electrocatalysts.

关键词： Synergistic effect Intermetallics Single atomic sites Oxygen reduction reaction Hydrogen evolution reaction

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Graphene Aerogel Composites with Self‑Organized Nanowires‑Packed Honeycomb Structure for Highly Efficient Electromagnetic Wave Absorption

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Nano-Micro Letters 2025年第2期17卷 533-547页

作者： xiao You Huiying Ouyang Ruixiang Deng Qiuqi Zhang Zhenzhong Xing xiaowu Chen Qingliang Shan Jinshan Yang Shaoming Dong State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China Key Laboratory of Inorganic Coating Materials CAS Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China Structural Ceramics and Composites Engineering Research Center Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049People’s Republic of China School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210People’s Republic of China School of Materials Science and Engineering Zhejiang Sci-Tech UniversityHangzhou 310018People’s Republic of China University of Chinese Academy of Sciences Beijing 100039People’s Republic of China

With vigorous developments in nanotechnology,the elaborate regulation of microstructure shows attractive potential in the design of electromagnetic wave ***,a hierarchical porous structure and composite heterogeneous interface are constructed successfully to optimize the electromagnetic loss *** macro–micro-synergistic graphene aerogel formed by the ice template‑assisted 3D printing strategy is cut by silicon carbide nanowires(SiC_(nws))grown in situ,while boron nitride(BN)interfacial structure is introduced on graphene *** unique composite structure forces multiple scattering of incident EMWs,ensuring the combined effects of interfacial polarization,conduction networks,and magnetic-dielectric ***,the as-prepared composites present a minimum reflection loss value of−37.8 dB and a wide effective absorption bandwidth(EAB)of 9.2 GHz(from 8.8 to 18.0 GHz)at 2.5 ***,relying on the intrinsic high-temperature resistance of SiC_(nws) and BN,the EAB also remains above 5.0 GHz after annealing in air environment at 600℃ for 10 h.

关键词： Hierarchical porous structure Interface High-temperature resistance Graphene aerogel composites Electromagnetic wave absorption

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Proposal of new classification for postoperative patients with hepatocellular carcinoma based on tumor growth characteristics

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World Journal of Gastroenterology 2013年第33期19卷 5534-5541页

作者： Cui-Hong Zhu xiao-Hui Liu Rui Cao xiong-zhi Wu ZhongShan-Men in-Patient Department Tianjin Medical University Cancer Institute and Hospital

AIM:To propose an appropriate staging system for hepatocellular carcinoma(HCC)***:Here,288 in-patients with HCC were studied and divided into three groups:those with expansive growth,invasive growth(including satellite nodules,nodule fusions and direct tumor invasion of adjacent organs),or disseminative growth(including vascular involvement,regional lymph node metastasis and distant metastasis).A survival analysis was performed using a Kaplan-Meier analysis,and prognostic factors for overall survival were determined by the Cox proportional hazards regression ***:The overall survival(OS)of patients with invasive tumor growth was shorter than that of patients with expansive tumor growth(27.796±3.730and 57.398±4.873 mo,respectively,P<0.001).No significant difference in survival was observed between patients with vascular involvement and patients with regional lymph node metastasis(21.667±4.773 and14.619±2.456 mo,respectively,P=0.801).The OS of patients with distant metastasis(6.417±1.395mo)was shorter than that of the other groups(P<0.001).No significant difference in survival was observed between patients with expansive tumor growth and vascular and/or regional lymph node involvement and patients with invasive tumor growth and no vascular and/or lymph node involvement(25.762±7.024,21.200±7.794 and 39.533±5.840 mo,respectively;P=0.871,0.307 and 0.563,respectively).CONCLUSION:These data led to the proposal of a new staging system:the Expansive-Invasive-Disseminative growth staging classification.

关键词： Hepatocellular carcinoma Lymph node Metastasis Invasive growth Staging system classification

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Efficacy and safety of different anti-osteoporotic drugs for the spinal fusion surgery: A network meta-analysis

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World Journal of Clinical Cases 2023年第30期11卷 7350-7362页

作者： xiao-Yuan He Huan-xiong Chen zhi-Rong Zhao Spinal Surgery Hainan Province Clinical Medical CenterHaikou 570100Hainan ProvinceChina

BACKGROUND Administering anti-osteoporotic agents to patients perioperatively is a widely accepted approach for improving bone fusion rates and reducing the risk of *** best anti-osteoporotic agents for spinal fusion surgery remain *** To investigate the efficacy and safety of different anti-osteoporotic agents in spinal fusion surgery via network *** Searches were conducted in four electronic databases(PubMed,EMBASE),Web of Science,the Cochrane Library and China National Knowledge Infrastructure(CNKI)from inception to November *** studies that compared antiosteoporotic agents vs placebo for spinal fusion surgery were included in this network *** included fusion rate,Oswestry disability index(ODI),and adverse *** meta-analysis was performed by R software with the gemtc *** In total,13 randomized controlled trials were included in this network *** teriparatide(OR 3.2,95%CI:1.4 to 7.8)was more effective than placebo in increasing the fusion *** surface under the cumulative ranking curve(SUCRA)of teriparatide combined with denosumab was the highest(SUCRA,90.9%),followed by teriparatide(SUCRA,74.0%),zoledronic acid(SUCRA,43.7%),alendronate(SUCRA,41.1%)and risedronate(SUCRA,35.0%).Teriparatide(MD-15,95%CI:-28 to-2.7)and teriparatide combined with denosumab(MD-20,95%CI:-40 to-0.43)were more effective than placebo in decreasing the *** SUCRA of teriparatide combined with denosumab was highest(SUCRA,90.8%),followed by teriparatide(SUCRA,74.5%),alendronate(SURCA,52.7),risedronate(SURCA,52.1%),zoledronic acid(SURCA,24.2%)and placebo(SURCA,5.6%)for *** adverse events were not different between *** This network meta-analysis suggests that teriparatide combined with denosumab and teriparatide alone significantly increase the fusion rate and decrease the ODI without increasing adverse *** on current evidence,teriparatide combined with denosumab

关键词： Anti-osteoporotic agents Spinal fusion procedure Network meta-analysis Systematic review Denosumab

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Facile and Large-scale Fabrication of Biodegradable Thermochromic Fibers Based on Poly(lactic acid)

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Chinese Journal of Polymer Science 2022年第10期40卷 1242-1251,I0010页

作者： xiao-xiong Chen Jin-Chao Yu Kang Chen Peng Ji Xiang-Ling Chen zhi-Juan Pan College of Textile and Clothing Engineering Soochow UniversitySuzhou 215123China Engineering Research Center of Technical Textiles Ministry of EducationDonghua UniversityShanghai 201620China College of Materials and Textiles and National Engineering Laboratory for Textile Fiber Materials and Processing Technology Zhejiang Sci-Tech UniversityHangzhou 310018China Co-Innovation Center for Textile Industry Donghua UniversityShanghai 201620China

To investigate the feasibility of developing biobased and biodegradable thermochromic fibers,poly(lactic acid)(PLA)fibers with visual temperature indicator functionality were fabricated using a scalable melt spinning technique(spinning speed 800 m/min),where PLA and thermochromic microcapsules were used as fiber-forming polymers and color indicators,*** effect of thermochromic microcapsules on the mechanical properties and reversible color-changing function of PLA fibers was systematically investigated to achieve high tenacity and sensitive color-changing *** difference in the fiber performance was connected to changes in the multilayer *** results show that PLA fibers exhibit excellent tenacity of 3.7-4.7 cN/dtex and reversible and stable thermochromic behavior over 31℃.The high fraction of mesophase within TPLA-1 fiber plays an important role in its ***,the low-concentration of microcapsules(~1 wt%)with good dispersion could act as a nucleating agent inside the PLA matrix and contribute to the formation of microcrystals in the amorphous between primary lamellae,which is also beneficial to maintain the tenacity of the *** agglomeration of high-concentration microcapsules within PLA fibers hampered the formation of mesophase,resulting in a decrease in fiber *** from the content of microcapsules,the agglomeration of high-concentration microcapsules(>5 wt%)is the main reason that limits the substantial increase in fiber color *** study opens up new possibilities for degradable thermochromic fibers produced using standard industrial spinning technology.

关键词： Poly(lactic acid)fiber Reversible thermochromic fiber Biodegradable Melt spinning

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Enhancement of motor functional recovery in thoracic spinal cord injury: voluntary wheel running versus forced treadmill exercise

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Neural Regeneration Research 2025年第3期20卷 836-844页

作者： Do-Hun Lee Dan Cao Younghye Moon Chen Chen Nai-Kui Liu xiao-Ming Xu Wei Wu Spinal Cord and Brain Injury Research Group Stark Neurosciences Research InstituteIndiana University School of MedicineIndianapolisINUSA Department of Neurological Surgery Indiana University School of MedicineIndianapolisINUSA Department of Neuroscience Baylor College of MedicineHoustonTXUSA

Spinal cord injury necessitates effective rehabilitation strategies, with exercise therapies showing promise in promoting recovery. This study investigated the impact of rehabilitation exercise on functional recovery and morphological changes following thoracic contusive spinal cord injury. After a 7-day recovery period after spinal cord injury, mice were assigned to either a trained group(10 weeks of voluntary running wheel or forced treadmill exercise) or an untrained group. Bi-weekly assessments revealed that the exercise-trained group, particularly the voluntary wheel exercise subgroup, displayed significantly improved locomotor recovery, more plasticity of dopaminergic and serotonin modulation compared with the untrained group. Additionally, exercise interventions led to gait pattern restoration and enhanced transcranial magnetic motor-evoked potentials. Despite consistent injury areas across groups, exercise training promoted terminal innervation of descending axons. In summary, voluntary wheel exercise shows promise for enhancing outcomes after thoracic contusive spinal cord injury, emphasizing the role of exercise modality in promoting recovery and morphological changes in spinal cord injuries. Our findings will influence future strategies for rehabilitation exercises, restoring functional movement after spinal cord injury.

关键词： behavioral assessment motor function neural plasticity running wheel exercise spinal cord injury treadmill exercise voluntary exercise

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Understanding sequence effect in DNA bending elasticity by molecular dynamic simulations

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Communications in Theoretical Physics 2021年第7期73卷 127-135页

作者： xiao-Wei Qiang Hai-Long Dong Kai-Xin xiong Wenbing Zhang zhi-Jie Tan Department of Physics and Key Laboratory of Artificial Micro&Nano-Structures of Ministry of Education School of Physics and TechnologyWuhan UniversityWuhan 430072China

Structural elasticity of double-strand DNAs is very important for their biological functions such as DNA-ligand binding and DNA-protein *** all-atom molecular dynamics simulations,we investigated the bending elasticity of DNA with three typical sequences including poly(A)-poly(T)(AA-TT),poly(AT)-poly(TA)(AT-TA),and a generic sequence(GENE).Our calculations indicate that,AA-TT has an apparently larger bending persistence length(P~63 nm)than GENE(P~49 nm)and AT-TA(P~48 nm)while the persistence length of AT-TA is only very slightly smaller than that of GENE,which agrees well with those from existing ***,through extensive electrostatic calculations,we found that the sequence-dependent bending elasticity is attributed to the sequence-dependent electrostatic bending energy for AA-TT,AT-TA and GENE,which is coupled to their backbone ***,the apparently stronger bending stiffness of AA-TT is attributed to its narrower minor ***,for the three DNAs,we predicted the non-electrostatic persistence length of~17 nm,thus electrostatic interaction makes the major contribution to DNA bending *** mechanism of electrostatic energy dominating sequence effect in DNA bending elasticity is furtherly illustrated through the electrostatic calculations for a grooved coarse-grained DNA model where minor groove width and other microscopic structural parameters can be artificially adjusted.

关键词： DNA elasticity molecular dynamic simulation persistence length electrostatic interaction

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Parity and carotid atherosclerosis in elderly Chinese women

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Journal of Geriatric Cardiology 2020年第12期17卷 759-765页

作者： xiao-Yan WANG Fei YE Li-xiong ZENG Shan TU Wen-zhi LUO Xu DENG zhi-Hui ZHANG Department of Cardiology the Third Xiangya HospitalCentral South UniversityChangshaChina

Background The relationship between parity and atherosclerosis has been reported in some ethnic ***,results regarding Chinese women are still *** study aimed to investigate the association of parity and carotid atherosclerosis,which has a predictive value of subsequent atherosclerotic events in elderly Chinese *** A total of 2,052 participants from the medical examination center of the Third Xiangya Hospital were enrolled in the study.A standardized,structured questionnaire was administered to collect information on subjects’demographic characteristics,socioeconomic status,and cardiovascular risk ***-resolution ultrasound was used to examine carotid plaques and carotid intima-media thickness(IMT).Results The mean age of participants was 66.1±5.5 *** with more birth appeared to have a higher risk of carotid artery plaques.A multivariate-adjusted model yielded an odds ratio of 1.38(95%CI:12%-70%,P=0.003)per birth.A positive association was observed between parity and common carotid IMT(β±SE:0.029±0.006,P<0.001),and internal carotid IMT(β±SE:0.011±0.005,P=0.03)in a univariate model;however,these associations became non-significant in multivariate-adjusted *** common carotid IMT was classified into an IMT≥1 mm group and an IMT<1 mm group,higher parity was associated with more obvious thickening both in the unadjusted model(OR=1.61,95%CI:1.29-2.00,P<0.001)and in the fully adjusted model(OR=1.43,95%CI:1.09-1.88,P=0.01).Conclusions There is a positive association between parity and risk of carotid plaques,as well as between parity and risk of obvious thickening for common carotid IMT in elderly Chinese women,indicating multiparous women might experience more atherosclerotic challenges.

关键词： Atherosclerosis Elderly women Parity

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A multiaxial lead-free two-dimensional organic-inorganic perovskite ferroelectric

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National Science Review 2021年第5期8卷 140-146页

作者： Chao-Ran Huang Xuzhong Luo xiao-Gang Chen Xian-Jiang Song zhi-Xu Zhang Ren-Gen xiong Key Laboratory of OrganoPharmaceutical Chemistry of Jiangxi Province College of Chemistry and Chemical EngineeringGannan Normal University Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics Southeast University

Two-dimensional(2 D) hybrid organic-inorganic perovskites(HOIPs) have recently gained tremendous interest because of their unique features in contrast to three-dimensional counterparts and traditional 2 D materials. However, although some 2 D HOIP ferroelectrics have been achieved, the issue of toxic Pb and uniaxial nature impede their further application. Herein, for the first time, we report a lead-free 2 D HOIP multiaxial ferroelectric, [3,3-difluorocyclobutylammonium]2CuCl4(1), which shows four ferroelectric axes and eight equivalent polarization directions, more than those of the other 2 D HOIP ferroelectrics and even the inorganic perovskite ferroelectric BaTiO3(three ferroelectric axes and six equivalent polarization directions). 1 also features a high Curie temperature of 380 K and exhibits remarkable thermochromism of color change from green-yellow to dark brown. To our knowledge, 1 is the first multiaxial lead-free2 D HOIP ferroelectric. This work sheds light on the exploration of better lead-free 2 D HOIP ferroelectrics.

关键词： ferroelectrics organic-inorganic perovskites multiaxial ferroelectrics Curie temperature thermochromism

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