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| 1 | Seasonal changes of soil erosion and its spatial distribution on a long gentle hillslope in the Chinese Mollisol region显示文摘Understanding seasonal soil erosion and deposition rates and their spatial distribution along sloping farmlands are necessary for erosion prediction technology and implementing effective soil conservation practices.To date seasonal change of soil erosion and soil redistribution on long gentle hillsiopes are not fully quantified due to the variable erosive forces in different seasons.A multi-tracer method using rare earth elements(REE)was employed to discriminate seasonal changes of soil erosion and its spatial distribution on a sloping farmland driven by snowmelt runoff,wind force and rainfall-runoff.A long-slope runoff plot with 5 m wide and 320 m long located in the typical Mollisol region of China was divided into eight segments,each of which was 40 m long and tagged with one of eight REE oxides.The spot method of a partial-area tagging scheme was employed and a grid-based layout was used for REE application.Results showed that annual soil erosion rate was 3251.01 km^(-2)for the whole runoff plot,in which snowmelt runoff erosion contributed 537.3 t km^(-2),wind erosion 363.11 km-2 and rainfall-runoff erosion 2350.6 t km^(-2).Surface runoff is the main external erosive force of hillslope soil erosion,accounting for 88.8%of the total annual soil loss.Furthermore,for the eight slope segments of the 320-m long hillslope,the sediment transport ratios of each slope segment caused by snowmelt runoff and rainfall-runoff erosion were more than 23.5%and 34.7%,respectively.The results will enrich the understanding of seasonal soil erosion on long hillsiopes. | Lei Wang Fenli Zheng Gang Liu Xunchang J.Zhang Glenn V.Wilson Hongqiang Shi Xujun Liu | 2021 | International Soil and Water Conservation Research2021，9，3： | 6 |
| 2 | Imbalance of the reciprocally inhibitory loop between the ubiquitin-specific protease USP43 and EGFR/PI3K/AKT drives breast carcinogenesis显示文摘 | Lin He Xinhua Liu Jianguo Yang Wanjin Li Shumeng Liu Xujun Liu Ziran Yang Jie Ren Yue Wang Lin Shan Chengjian Guan Fei Pei Liandi Lei Yu Zhang Xia Yi Xiaohan Yang Jing Liang Rong Liu Luyang Sun Yongfeng Shang | 2018 | Cell Research2018，28，9： | 5 |
| 3 | Understanding the relationships between poverty alleviation and ecosystem conservation:empirical evidence from western China显示文摘Despite growing interest in the use of Payments for Ecosystem Services(PES)for both social and ecological benefits,few studies have investigated the feedback and interaction between poverty alleviation and ecosystem protection outcomes.In this study,the poverty reduction effects of PES policies and their subsequent influence on environmental protection outcomes are investigated.To address these questions,222 local rural households who were involved in PES programs from the Habahu National Nature Reserve in western China were interviewed.The results showed that the social and ecological outcomes of PES policies are neither two separate entities nor a trade-off.While rural households are the key participants in PES programs,the social and ecological outcomes of PES policies are closely related to each other.In addition,poverty reduction results could greatly influence ecosystem conservation effects.Livelihood assets,as well as the attitudes of rural households,play important roles in both of the outcomes.This research provides a new perspective that considers the social and ecological benefits of PES policies,and it also calls for an integrated consideration of social and ecological components in tihe design of PES policies to achieve enhanced results both for poverty alleviation and ecosystem conservation. | Xujun HU Huiyuan ZHANG Haiguang HAO Danyang FENG Haiyan LIU Qiang ZHANG | 2020 | Frontiers of Earth Science2020，14，1： | 2 |
| 4 | Morphology and microstructure of polyamide 46 wear debris and transfer film : In relation to wear mechanisms 显示文摘 | Cong Peihong Xiang Fei Liu Xujun | 2008 | Wear2008，265，78： | 1 |
| 5 | Tribophysical and tribochemical effects of a thermoplastic polyimide 显示文摘 | LI Tongsheng CONG Peihong LIU Xujun | 2000 | Journal of Materials Science2000，35，： | 1 |
| 6 | The tribological properties of PTFE filled with thermally treated nano-attapulgite 显示文摘 | Lai Shiquan Li Tongsheng Liu Xujun | 2006 | Tribology International2006，39，6： | 1 |
| 7 | Application of visible_near infrared spectroscopy and chemometric calibrations for variety discrimination of instant milk teas显示文摘 | LIU Fei YE Xujun HE Yong | 2009 | Journal of Food Engineering2009，93，： | 1 |
| 8 | Dynamic security enhancement in power market system显示文摘 | David A K Liu Xujun | 2002 | IEEE Trans Power Systems2002，17，2： | 1 |
| 9 | Friction and wear mechanisms of PA66/PPS blend reinforced with carbon fiber显示文摘 | Chen Zhaobin Liu Xujun Lv Renguo | 2007 | Journal of Applied Polymer Science2007，105，2： | 1 |
| 10 | Effect of crystalline form on the tribological properties of PA46/HDPE polyblends 显示文摘 | Peihong Cong Fei Xiang Xujun Liu | 2008 | Wear2008，265，7： | 1 |
| 11 | Application of visi- ble-near infrared spectroscopy and chemometric calibra- tions for variety discrimination of instant milk teas 显示文摘 | Liu Fei Ye Xujun He Yong | 2009 | Journal of Food Engineering2009，93，： | 1 |
| 12 | The rice ERF transcription factor OsERF922 negatively regulates resistance to Magnaporthe oryzae and salt tolerance显示文摘 | Dongfeng Liu Xujun Chen Jiqin Liu Jianchun Ye Zejian Guo | 2012 | Journal of Experimental Botany2012，，10： | 1 |
| 13 | The tribological properties of PTFE filled with thermally treated nano-attapulgite 显示文摘 | Lai Shiquan Li Tongsheng Liu Xujun | 2006 | Tribology International2006，39，6： | 1 |
| 14 | A Study on the Friction and wear behavior of PTFE filled with acid treated nano-attapulgite显示文摘 | Lai Shiquan Li Tongsheng Liu Xujun | 2004 | Macromolecular Materials and Engineering2004，289，： | 1 |
| 15 | An investigation on the friction of oriented polytetrafluoroethylene显示文摘 | Liu Xiaoxia Li Tongsheng Liu Xujun | 2007 | Wear2007，262，： | 1 |
| 16 | Friction and wear mechanisms of polyamide 66/high density polyethylene blends 显示文摘 | Chert Zhaobin Li Tongsheng Liu Xujun | 2005 | Journal of Polymer Science Part B : Polymer Physics2005，43，18： | 1 |
| 17 | Microwaveassisted extraction of tea polyphenols and tea caffeine from green tea leaves显示文摘 | Xujun Pan Guoguang Niu Huizhou Liu | 2003 | Chemical Engineering and Processing2003，42，： | 1 |
| 18 | Study on tribological properties of frictional material based aromatic polyamide显示文摘 | LIU Xujun LI Tongsheng TIAN Nong | 2001 | J Appl Polym Sci2001，80，14： | 1 |
| 19 | Applieation of visible/near infrared spectroscopy and chemometric calibrations for variety discrimination of instant milk teas显示文摘 | Liu Fei Ye Xujun He Yong | | 0，，02： | 1 |
| 20 | Dual-engineered cartilage-targeting extracellular vesicles derived from mesenchymal stem cells enhance osteoarthritis treatment via miR-223/NLRP3/pyroptosis axis:Toward a precision therapy显示文摘Osteoarthritis(OA)is the most common disabling joint disease with no effective disease modifying drugs.Extracellular vesicles released by several types of mesenchymal stem cells could promote cartilage repair and ameliorate OA pathology in animal models,representing a novel therapeutic strategy.In this study,we demonstrated that extracellular vesicles derived from human umbilical cord mesenchymal stem cells(hUC-EVs)could maintain chondrocyte homeostasis and alleviate OA,and further revealed a novel molecular mechanism of this therapeutic effect.miR-223,which could directly bind with the 3′UTR of NLRP3 mRNA,was found to be a key miRNA for hUC-EVs to exert beneficial effects on inflammation inhibiting and cartilage protecting.For enhancing the effect on mitigating osteoarthritis,exogenous miR-223 was loaded into hUC-EVs by electroporation,and a collagen II-targeting peptide(WYRGRL)was modified onto the surface of hUC-EVs by genetic engineering to achieve a more targeted and efficient RNA delivery to the cartilage.The dual-engineered EVs showed a maximal effect on inhibiting the NLRP3 inflammasome activation and chondrocyte pyroptosis,and offered excellent results for the treatment of OA.This study provides a novel theoretical basis and a promising therapeutic strategy for the application of engineered extracellular vesicles in OA treatment. | Weixuan Liu Anqi Liu Xujun Li Ziyang Sun Zhenghua Sun Yaru Liu Gang Wang Dan Huang Hao Xiong Shiyang Yu Xintao Zhang Cunyi Fan | 2023 | Bioactive Materials2023，，12： | 0 |
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