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| 1 | Spatial pattern of grassland aboveground biomass and its environmental controls in the Eurasian steppe显示文摘Vegetation biomass is an important component of terrestrial ecosystem carbon stocks. Grasslands are one of the most widespread biomes worldwideplaying an important role in global carbon cycling. Thereforestudying spatial patterns of biomass and their correlations to environment in grasslands is fundamental to quantifying terrestrial carbon budgets. The Eurasian steppean important part of global grasslandsis the largest and relatively well preserved grassland in the world. In this studywe analyzed the spatial pattern of aboveground biomass(AGB)and correlations of AGB to its environment in the Eurasian steppe by meta-analysis. AGB data used in this study were derived from the harvesting method and were obtained from three data sources(literatureglobal NPP database at the Oak Ridge National Laboratory Distributed Active Archive Center(ORNL)some data provided by other researchers). Our results demonstrated that:(1) as for the Eurasian steppe overallthe spatial variation in AGB exhibited significant horizontal and vertical zonality. In detailAGB showed an inverted parabola curve with the latitude and with the elevationwhile a parabola curve with the longitude. In additionthe spatial pattern of AGB had marked horizontal zonality in the Black Sea-Kazakhstan steppe subregion and the Mongolian Plateau steppe subregionwhile horizontal and vertical zonality in the Tibetan Plateau alpine steppe subregion.(2) Of the examined environmental variablesthe spatial variation of AGB was related to mean annual precipitation(MAP)mean annual temperature(MAT)mean annual solar radiation(MAR)soil Gravel contentsoil p H and soil organic content(SOC) at the depth of 0–30 cm. NeverthelessMAP dominated spatial patterns of AGB in the Eurasian steppe and its three subregions.(3) A Gaussian function was found between AGB and MAP in the Eurasian steppe overallwhich was primarily determined by unique patterns of grasslands and environment in the Tibetan Plateau. AGB was significantly positively related to MAP in the Black Sea-Kazakhstan steppe subregion(elevation < 3000 m)the Mongolian Plateau steppe subregion(elevation < 3000 m) and the surface(elevation ≥ 4800 m) of the Tibetan Plateau. Neverthelessthe spatial variation in AGB exhibited a Gaussian function curve with the increasing MAP in the east and southeast margins(elevation < 4800 m) of the Tibetan Plateau. This study provided more knowledge of spatial patterns of AGB and their environmental controls in grasslands than previous studies only conducted in local regions like the Inner Mongolian temperate grasslandthe Tibetan Plateau alpine grasslandetc. | JIAO Cuicui YU Guirui HE Nianpeng MA Anna GE Jianping HU Zhongmin | 2017 | Journal of Geographical Sciences2017，27，1： | 7 |
| 2 | Emerging nanozymes for potentiating radiotherapy and radiation protection显示文摘While radiotherapy is a mainstay therapeutic modality for malignant tumor,the intrinsic tumor resistance to radiotherapy,as well as the concomitant radiation injury to adjacent healthy tissues,greatly limits the efficacy of cancer radiotherapy.As a result,the development of novel radioenhancers and radioprotectants is highly desired for clinical radiotherapy.In recent years,nanozymes have inspired ever-growing research interest because of their multi-enzyme activities and microenvironment-responsive feature.In view of the significant progress of nanozymes in radiation medicine,we,in this review,systematically illustrate the impressive progress of nanozymes for potentiating radiotherapy and radiation protection.First,the types of nanozymes used in tumor radiotherapy are briefly discussed.Subsequently,the main strategies of nanozymes to enhance the radiotherapy efficiency,including promoting the generation of reactive oxygen species(ROS),relieving hypoxia in tumor microenvironment and combining with other cancer therapeutic regimens,are summarized.Finally,the advances of typical nanozymes for preventing radiation-induced hematopoietic damage and gastrointestinal damage are highlighted. | Yu Chong Jiayu Ning Shengyi Min Jiaquan Ye Cuicui Ge | 2022 | Chinese Chemical Letters2022，33，7： | 0 |
| 3 | Research Progress of circRNAs during Epithelial- Mesenchymal Transition of Hepatocellular Carcinoma显示文摘Hepatocellular carcinoma is prone to invasion and metastasis.It often receives a low diagnosis rate in the early stage but has an extremely high mortality rate.Epithelial-mesenchymal transformation(EMT)is a key factor in promoting tumor cell invasion and metastasis.Circular RNA(circRNA)is involved in regulating EMT in hepatocarcinoma cells through multiple pathways,thereby affecting the occurrence and progression of hepatocellular carcinoma.This article mainly reviews the research progress of circRNA related to EMT core transcription factors,circRNA that promotes EMT in liver cancer,and circRNA that inhibits EMT in liver cancer. | Yuqing Li Cuicui Ren Yu Cai Chang Tian Yuanyuan Jia Ge Wu | 2024 | Proceedings of Anticancer Research2024，8，2： | 0 |
| 4 | Mechanical and Rheological Properties of Bamboo Pulp Fiber Reinforced High Density Polyethylene Composites:Influence of Nano CaCO_(3)Treatment and Manufacturing Process with Different Pressure Ratings显示文摘In order to investigate the effect of the relative motion of nano CaCO_(3)reinforced bamboo pulp fiber(BPF)/HDPE composite components on the mechanical performance,a comparative study was performed.BPF was treated by nano CaCO_(3)blending(BM)and impregnation modification(IM)technology.The composites were produced using hot press(HPMP),extrusion(EMP)and injection molding process(IMP).The physical morphology of BPF was similar at different manufacturing processes.Compared to the samples manufactured by HPMP,a decrease in the(specific)flexural strength of BPF/HDPE composites and an increase in those of composites treated by nano CaCO_(3)manufactured by EMP and IMP were observed.The injection molded composites exhibited the best values in the(specific)impact strength,(specific)tensile properties.IM had a greater effect on the rheological behavior of the composites than BM,and nano CaCO_(3)treatment most effectively affected the performance of the extrusion molded composites. | Cuicui Wang Xin Wei Lee MSmith Ge Wang Shuangbao Zhang Haitao Cheng | 2022 | Journal of Renewable Materials2022，10，7： | 0 |
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