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16篇 您的检索式:作者名="Matthew Chun"
    题名 作者 年代 出处 被引量
1Physiological responses of artificial moss biocrusts to dehydration-rehydration process and heat stress on the Loess Plateau, China显示文摘Ex-situ cultivation of biological soil crusts(biocrusts) is a promising technology to produce materials that can induce the recovery of biocrusts in the field for the purposes of preventing soil erosion and improving hydrological function in degraded ecosystems. However, the ability of artificially cultivated biocrusts to survive under adverse field conditions, including drought and heat stresses, is still relatively unknown. Mosses can bolster biocrust resistance to the stresses(e.g., drought and heat) and the resistance may be introduced prior to field cultivation. In this study, we subjected the well-developed artificial moss biocrusts(dominant species of Didymodon vinealis(Brid.) Zand.) that we cultivated in the phytotron to a dehydration-rehydration experiment and also a heat stress experiment and measured the activities of protective enzymes(including peroxidase(POD), superoxide dismutase(SOD), and catalase(CAT)) and the contents of osmoregulatory substances(including soluble proteins and soluble sugars) and malondialdehyde(MDA, an indicator of oxidative stress) in the stem and leaf fragments of mosses. The results showed that, during the dehydration process, the activities of protective enzymes and the contents of osmoregulatory substances and MDA gradually increased with increasing duration of drought stress(over 13 days). During the rehydration process, values of these parameters decreased rapidly after 1 d of rehydration. The values then showed a gradual decrease for 5 days, approaching to the control levels. Under heat stress(45°C), the activities of protective enzymes and the content of soluble proteins increased rapidly within 2 h of heat exposure and then decreased gradually with increasing duration of heat exposure. In contrast, the contents of soluble sugars and MDA always increased gradually with increasing duration of heat exposure. This study indicates that artificial moss biocrusts possess a strong drought resistance and this resistance can be enhanced after a gradual dehydration treatment. This study also indicates that artificial moss biocrusts can only resist short-term heat stress(not long-term heat stress). These findings suggest that short-term heat stress or prolonged drought stress could be used to elevate the resistance of artificial moss biocrusts to adverse conditions prior to field reintroduction.BU Chongfeng WANG Chun YANG Yongsheng ZHANG Li Matthew A BOWKER 2017Journal of Arid Land2017,9,3:4
2Fusobacterium nucleatum potentiates intestinal tumorigenesis and modulates the tumor immune microenvironment显示文摘Aleksandar D. Kostic Eunyoung Chun Lauren Robertson Jonathan N. Glickman Carey Ann Gallini Monia Michaud Thomas E. Clancy Daniel C. Chung Paul Lochhead Georgina L. Hold Emad M. El-Omar Dean Brenner Charles S. Fuchs Matthew Meyerson Wendy S. Garrett 2013Cell Host & Microbe2013,,:1
3Remote-controlled catheter ablation of accessory pathways: results from the magnetic laboratory显示文摘Chun JK Ernst S Matthews S 2007Eur Heart J2007,28,2:1
4The ganglia distributed monitoring system:design,implementation,and experience显示文摘Matthew L Massie Brent N Chun David E Culler 2004Parallel Computing2004,30,7:1
5Foams and emulsions stabilized with nanoparticles for potential con- formance control applications 显示文摘Zhang Tiantian Matthew Roberts Chun Huh 2009SPE 1217442009,,:1
6Remote-controlled catheter ablation of accessory pathways : results from the magnetic laboratory 显示文摘Chun JK Ernst S Matthews S 2007Eur Heart J2007,28,:1
7Remote-controlled catheter ablation of accessory pathways: results from the magnetic laboratory 显示文摘Chun JK Ernst S Matthews S 2007Eur Heart J2007,28,:1
8Remote-controlled catheter ablation of accessory pathways:results from the magnetic laboratory显示文摘Chun JK Ernst S Matthews S 2007Eur Heart J2007,28,2:1
9Remote-controlled catheter ablation of accessory pathways:results from the magnetic laboratory显示文摘Chun JKR Ernst S Matthews S 2007European Heart Journal2007,28,:1
10Fusobacterium nucleatum Potentiates Intestinal Tumorigenesis and Modulates the Tumor-Immune Microenvironment显示文摘Aleksandar D. Kostic Eunyoung Chun Lauren Robertson Jonathan N. Glickman Carey Ann Gallini Monia Michaud Thomas E. Clancy Daniel C. Chung Paul Lochhead Georgina L. Hold Emad M. El-Omar Dean Brenner Charles S. Fuchs Matthew Meyerson Wendy S. Garrett 2013Cell Host & Microbe2013,,2:1
11The mechanism of electroforming of metal oxide memristive switches显示文摘J Joshua Yang Feng Miao Matthew D Pickett Douglas A A Ohlberg Duncan R Stewart Chun Ning Lau R Stanley Williams 2009Nanotechnology2009,,21:1
12The ganglia distributed monitoring system: design, implementation, and experience显示文摘Matthew L Massie Brent N Chun David E Culler 2004Parallel Computing2004,,7:1
13Development,validation and comparison of multivariable risk scores for prediction of total stroke and stroke types in Chinese adults:a prospective study of 0.5 million adults显示文摘Background and purpose Low-income and middle-income countries have the greatest stroke burden,yet remain understudied.This study compared the utility of Framingham versus novel risk scores for prediction of total stroke and stroke types in Chinese adults.Methods China Kadoorie Biobank(CKB)is a prospective study of 512726 adults,aged 30-79 years,recruited from 10 areas in China in 2004-2008.By 1 January 2018,43234 incident first stroke cases(36310 ischaemic stroke(IS);8865 haemorrhagic stroke(HS))were recorded in 503842 participants with no history of stroke at baseline.We compared the predictive utility of the Framingham Stroke Risk Profile(FSRP)with novel CKB stroke risk scores and included recalibration,refitting,stratifying by study area and addition of other risk factors.Discrimination was assessed using area under the receiver operating characteristic curve(AUC)and calibration was assessed using Greenwood-Nam-D’Agostinoχ^(2) statistics.Results Incidence of total stroke varied fivefold by area in China.The FSRP had good discrimination for total stroke(AUC(95%CI);men:0.78(0.77 to 0.79),women:0.77(95%CI 0.76 to 0.78)),but poor calibration(χ^(2);men:1,825,women:3,053),substantially underestimating absolute risks.Recalibration reducedχ^(2) by>80%,but did not improve discrimination.Refitting the FSRP did not materially improve discrimination,but further improved calibration.Stratification by area improved discrimination(AUC;men:0.82(0.82 to 0.83);women:0.82(0.82 to 0.83)),but not calibration.Adding other risk factors yielded modest,but statistically significant,improvements in the AUCs.The findings for IS and HS were similar to those for total stroke.Conclusions The FSRP reliably differentiated Chinese adults with incident stroke,but substantially underestimated the absolute risks of stroke.Novel local risk prediction equations that took account of differences in stroke incidence within China enhanced risk prediction of total stroke and major stroke pathological types.Matthew Chun Robert Clarke Tingting Zhu David Clifton Derrick A Bennett Yiping Chen Yu Guo Pei Pei Jun Lv Canqing Yu Ling Yang Liming Li Zhengming Chen Benjamin J Cairns 2022Stroke & Vascular Neurology2022,7,4:1
14Remote-controlled catheter ablation of accessory pathways:results from the magnetic laboratory 显示文摘Chun JK Ernst S Matthews S 2007Eur Heart J2007,28,2:1
15The ganglia distributed monitoring system: design, implementation, and experience显示文摘Matthew L Massie Brent N Chun David E Culler 2003Parallel Computing2003,30,2004:1
16Baseline gut microbiota and metabolome predict durable immunogenicity to SARS-CoV-2 vaccines显示文摘The role of gut microbiota in modulating the durability of cOVID-19 vaccine immunity is yet to be characterised.In this cohort study,we collected blood and stool samples of 121 BNT162b2 and 40 CoronaVac vaccinees at baseline,1 month,and 6 months post vaccination(p.v).Neutralisation antibody,plasma cytokine and chemokines were measured and associated with the gut microbiota and metabolome composition.Ye Peng Lin Zhang Chris K.P.Mok Jessica Y.L.Ching Shilin Zhao Matthew K.L.Wong Jie Zhu Chunke Chen Shilan Wang Shuai Yan Biyan Qin Yingzhi Liu Xi Zhang Chun Pun Cheung Pui Kuan Cheong Ka Long Ip Adrian C.H.Fung Kenneth K.Y.Wong David S.C.Hui Francis K.L.Chan Siew C.Ng Hein M.Tun 2023Signal Transduction and Targeted Therapy2023,8,10:0
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