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    题名 作者 年代 出处 被引量
1Correlations Between Foliar Stable Carbon Isotope Composition and Environmental Factors in Desert Plant Reaumuria soongorica (Pall.) Maxim.显示文摘Leaves of 407 individuals of Reaumuria soongorica (Pall.) Maxim. collected from the major distribution areas were measured to investigate the distribution characteristics of the stable carbon isotope in this desert plant, as well as correlations between δ13C values and environmental factors. Results showed that δ13C values in R. soongorica ranged from-22.77‰. to-29.85‰. and that the mean δ13C value (-26.52‰)was higher than a previously reported δ13C value for a different desert ecosystem. This indicates that R.soongorica belongs to the C3 photosynthetic pathway and has higher water use efficiency than other species. The correlations between δ13C values and environmental factors demonstrated that the foliar δ13C values in R. soongorica increased significantly with decreasing mean annual precipitation and mean relative humidity, and decreased with decreasing duration of sunshine and evaporation. The spatial distribution trend of δ13C values in R. soongorica was not obvious and there was no significant correlation between the δ13C values and mean annual temperature. We conclude that different distribution trends in δ13C values for R. soongorica were likely caused by stomatal limitation rather than by nutrient-related changes in photosynthetic efficiency and that precipitation played an important role in the wide distribution range of R.soongorica. This pattern of δ13C values for R. soongorica reinforced that it is a super-xerophil in terms of its adaptive strategies to a desert environment.Jian-Ying MA Tuo CHEN Wei-Ya QIANG Gang WANG 2005Journal of Integrative Plant Biology2005,47,9:42
2Adipose-derived mesenchymal stem cell transplantation promotes adult neurogenesis in the brains of Alzheimer's disease mice显示文摘In the present study,we transplanted adipose-derived mesenchymal stem cells into the hippocampi of APP/PS1 transgenic Alzheimer’s disease model mice.Immunofluorescence staining revealed that the number of newly generated(BrdU+)cells in the subgranular zone of the dentate gyrus in the hippocampus was significantly higher in Alzheimer’s disease mice after adipose-derived mesenchymal stem cell transplantation,and there was also a significant increase in the number of BrdU+/DCX+neuroblasts in these animals.Adipose-derived mesenchymal stem cell transplantation enhanced neurogenic activity in the subventricular zone as well.Furthermore,adipose-derived mesenchymal stem cell transplantation reduced oxidative stress and alleviated cognitive impairment in the mice.Based on these findings,we propose that adipose-derived mesenchymal stem cell transplantation enhances endogenous neurogenesis in both the subgranular and subventricular zones in APP/PS1 transgenic Alzheimer’s disease mice,thereby facilitating functional recovery.Yufang Yan Tuo Ma Kai Gong Qiang Ao Xiufang Zhang Yao Gong 2014Neural Regeneration Research2014,9,8:16
3Insight-HXMT observations of the first binary neutron star merger GW170817显示文摘Finding the electromagnetic(EM) counterpart of binary compact star merger, especially the binary neutron star(BNS) merger,is critically important for gravitational wave(GW) astronomy, cosmology and fundamental physics. On Aug. 17, 2017,Advanced LIGO and Fermi/GBM independently triggered the first BNS merger, GW170817, and its high energy EM counterpart,GRB 170817 A, respectively, resulting in a global observation campaign covering gamma-ray, X-ray, UV, optical, IR, radio as well as neutrinos. The High Energy X-ray telescope(HE) onboard Insight-HXMT(Hard X-ray Modulation Telescope) is the unique high-energy gamma-ray telescope that monitored the entire GW localization area and especially the optical counterpart(SSS17 a/AT2017 gfo) with very large collection area(~1000 cm^2) and microsecond time resolution in 0.2-5 MeV. In addition,Insight-HXMT quickly implemented a Target of Opportunity(ToO) observation to scan the GW localization area for potential X-ray emission from the GW source. Although Insight-HXMT did not detect any significant high energy(0.2-5 MeV) radiation from GW170817, its observation helped to confirm the unexpected weak and soft nature of GRB 170817 A. Meanwhile,Insight-HXMT/HE provides one of the most stringent constraints(~10^(-7) to 10^(-6) erg/cm^2/s) for both GRB170817 A and any other possible precursor or extended emissions in 0.2-5 MeV, which help us to better understand the properties of EM radiation from this BNS merger. Therefore the observation of Insight-HXMT constitutes an important chapter in the full context of multi-wavelength and multi-messenger observation of this historical GW event.TiPei Li ShaoLin Xiong ShuangNan Zhang FangJun Lu LiMing Song XueLei Cao Zhi Chang Gang Chen Li Chen TianXiang Chen Yong Chen YiBao Chen YuPeng Chen Wei Cui WeiWei Cui JingKang Deng YongWei Dong YuanYuan Du MinXue Fu GuanHua Gao He Gao Min Gao MingYu Ge YuDong Gu Ju Guan ChengCheng Guo DaWei Han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua Jiang WeiChun Jiang Jing Jin YongJie Jin Bing Li ChengKui Li Gang Li MaoShun Li Wei Li Xian Li XiaoBo Li XuFang Li YanGuo Li ZiJian Li ZhengWei Li XiaoHua Liang JinYuan Liao CongZhan Liu GuoQing Liu HongWei Liu ShaoZhen Liu XiaoJing Liu Yuan Liu YiNong Liu Bo Lu XueFeng Lu Tao Luo Xiang Ma Bin Meng Yi Nang JianYin Nie Ge OU JinLu Qu Na Sai Liang Sun Yin Tan Lian Tao WenHui Tao YouLi Tuo GuoFeng Wang HuanYu Wang Juan Wang WenShuai Wang YuSa Wang XiangYang Wen BoBing WU Mei Wu GuangCheng Xiao He Xu YuPeng Xu LinLi Yan JiaWei Yang Sheng Yang YanJi Yang AiMei Zhang ChunLei Zhang ChengMo Zhang Fan Zhang HongMei Zhang Juan Zhang Qiang Zhang Shu Zhang Tong Zhang Wei Zhang WanChang Zhang WenZhao Zhang Yi Zhang Yue Zhang YiFei Zhang YongJie Zhang Zhao Zhang ZiLiang Zhang HaiSheng Zhao JianLing Zhao XiaoFan Zhao ShiJie Zheng Yue Zhu YuXuan Zhu ChangLin Zou 2018Science China(Physics,Mechanics & Astronomy)2018,61,3:12
4Features of colorectal cancer in China stratified by anatomic sites:A hospital-based study conducted in university-affiliated hospitals from 2014 to 2018显示文摘Objective:The clinical and biological characteristics of colorectal cancer have been found to differ depending on the anatomic site of the cancer.However,for Chinese patients,there is limited information on the proportion of cases at each site and the related features.In this study,we explored the location,distribution and other features of colorectal cancers at each anatomic site in Chinese patients.Methods:We conducted a hospital-based study using hospitalization summary reports from 10 Peking University-affiliated hospitals from 2014 to 2018;the reports covered a total of 2,097,347 hospitalizations.Incident cases were chosen as the study population,and their epidemiological features were further analyzed.Results:A total of 20,739 colorectal cancer patients were identified.Rectum was the most common location(48.3%)of the cancer,whereas the proportions of patients with distal and proximal colon cancer were 24.5%and18.6%,respectively.Patients with rectal cancer were predominantly male and were the youngest for all anatomical sites(each P<0.001).The highest proportion of emergency admissions,the longest hospital stays and the highest hospitalization costs were found in patients with proximal colon cancer(each P<0.001).The proximal colon cancer subgroup included the highest proportions of patients with medical histories of cholecystectomy,cholecystolithiasis and/or gallbladder polyps and appendectomy(P=0.009,P<0.001 and P<0.001,respectively).The distal colon cancer subgroup included the highest proportions of patients with medical histories of diabetes and hypertension(P<0.001,respectively).Conclusions:The patterns of colorectal cancer observed in this study differ from those reported for Western patients and show a significantly higher proportion of patients with rectal cancer.Different epidemiological features were also found based on anatomic sites.Further studies based on tumor location should be conducted to facilitate more accurate screening and treatment.Ruize Qu Yanpeng Ma Liyuan Tao Xiaoyuan Bao Xin Zhou Bingyan Wang Fei Li Siyi Lu Lin Tuo Siyan Zhan Zhipeng Zhang Wei Fu 2021Chinese Journal of Cancer Research2021,33,4:10
5Combination of ablative fractional carbon dioxide laser and platelet-rich plasma treatment to improve hypertrophic scars:a retrospective clinical observational study显示文摘Background:Hypertrophic scars are one of the main complications that affect the quality of life of patients after burns.Many methods have been shown to be effective in the treatment of hypertrophic scars,such as ablative fractional CO_(2) laser(AFCL)and platelet-rich plasma(PRP).However,there are few studies on the effect of the combined application of these measures.The purpose of this study was to explore the therapeutic effect of AFCL combined with PRP on hypertrophic burn scars.Methods:A retrospective clinical observation study was conducted on 50 patients with hypertrophic burn scars.The AFCL+PRP group included 31 patients who received AFCL combined with PRP treatment;the AFCL group included 19 patients who received AFCL treatment only.The University of North Carolina 4P Scar Scale(UNC4P)and the Vancouver Scar Scale(VSS)scores that were collected before each treatment were used as indicators of the effectiveness of the previous treatment.The scores recorded at the second,fourth and seventh months were analysed.Results:The demographic data of the 2 groups were not significantly different.Before treatment,therewas no difference in the UNC4P and VSS scores between the 2 groups.Therewas a significant decline in the UNC4P and VSS total scores over 6 months in both groups(p<0.05)and scores in the 2 groups were comparable after 3 and 6 months(p<0.05).UNC4P scores in the AFCL+PRP group decreased from a mean of 8.26 to 2.61(p<0.05)with a concomitant drop in VSS scores from a mean of 11.74 to 6.06(p<0.01).In the AFCL group UNC4P and VSS scores decreased from 7.68 to 4.63(p<0.05)and from 10.89 to 8.16(p<0.05),respectively.The sub-items of these 2 assessments were analysed and the results suggest that AFCL combined with PRP can comprehensively improve scarring.Conclusions:This study shows that PRP is an effective adjunct for AFCL in the treatment of hypertrophic burn scars and that the combination of PRP and AFCL proved to be more useful than AFCL alone.This combination may be a new and effective clinical practice for the treatment of scars.However,larger and higher-level clinical studies are still needed to determine its efficacy and possible mechanisms.Zhanzhan Dai Xiaozhen Lou Tuo Shen Yu Sun Yongqiang Xiao Xingfeng Zheng Xuexin Wang Yu Peng Yukun Guo Yibin Guo Jiannan Wen He Fang Bing Ma Zhaofan Xia 2021Burns & Trauma2021,9,1:4
6Dispositional characteristics of Ordovician Wufeng Formation and Silurian Longmaxi Formation in Sichuan Basin and its adjacent areas显示文摘According to data of gas wells and typical sections of Wufeng Formation and Longmaxi Formation in Sichuan Basin,shale of various graptolite zones were analyzed to determine depositional environment,lithology and thickness characteristics of the graptolite shale interval of WF2-WF3 in the lower part of Wufeng Formation,the graptolite shale interval of WF4 in Guanyinqiao Member of Wufeng Formation and the graptolite shale interval of LM1-LM4 in the bottom of Longmaxi Formation,and characteristics of shale horizontal distribution were also investigated.During the depositional period of the graptolite shale interval of WF2-WF3,the study area was less affected by the Guangxi movement,the depositional environment was the deep water of open sea,where black shale was mainly deposited;the sedimentation center was developed in northeast Guizhou-northeast Sichuan and south Sichuan,the maximum thickness was from 4 to 6 m in the sedimentation center.During the depositional period of the graptolite shale interval of WF4,the depositional environment in the study area changed greatly due to global sea level fall and enhanced Guangxi movement;the central Sichuan paleouplift,the central Guizhou paleouplift and the Jiangnan-Xuefeng palaeouplift were further expanded,and the area of the sedimentary basin decreased;the depositional environment was mainly carbonate bioclastic shoal of shallow sea,and partially deep sea which only was distributed in the Shizhu-Fuling-Wuxi area in east and northeast Sichuan and the Gongxian-Yongchuan area in south Sichuan;sediments of shallow water were dominated by limestone and argillaceous limestone with abundant Hirnantia,sediments of deep water were dominated by calcareous mudstone and shale with Hirnantia.During the depositional period of the graptolite shale interval of LM1-LM4,due to rise of global sea level and Guangxi movement,the sedimentary area was larger than that in the depositional period of Guanyinqiao Member,and the sedimentary environment mainly was stagnant deepwater;thickness of black shale in the graptolite shale interval of LM1-LM4 was large,and the maximum thickness was over 20 m.Furthermore,control of the central Sichuan paleouplift,the central Guizhou paleouplift and the Jiangnan-Xuefeng paleouplift on black shale was discussed,and control of the Zhiliujing underwater highland/uplift,Huayingshan highland and Dingshan highland as well as western Hubei-Hunan underwater highland/uplift on shale deposition and preservation was also investigated.Haikuan Nie Zhijun Jin Xin Ma Zhongbao Liu Tuo Lin Zhenheng Yang 2017Petroleum Research2017,2,3:3
7Overview to the Hard X-ray Modulation Telescope (Insight-HXMT) Satellite显示文摘As China’s first X-ray astronomical satellite, the Hard X-ray Modulation Telescope (HXMT), which was dubbed as Insight-HXMT after the launch on June 15, 2017, is a wide-band(1-250 ke V) slat-collimator-based X-ray astronomy satellite with the capability of all-sky monitoring in 0.2-3 Me V. It was designed to perform pointing, scanning and gamma-ray burst(GRB)observations and, based on the Direct Demodulation Method (DDM), the image of the scanned sky region can be reconstructed.Here we give an overview of the mission and its progresses, including payload, core sciences, ground calibration/facility, ground segment, data archive, software, in-orbit performance, calibration, background model, observations and some preliminary results.Shuang-Nan Zhang TiPei Li FangJun Lu LiMing Song YuPeng X u CongZhan Liu Yong Chen XueLei Cao QingCui Bu Zhi Chang Gang Chen Li Chen TianXiang Chen YiBao Chen YuPeng Chen Wei Cui WeiWei Cui JingKang Deng YongWei Dong Yuan Yuan Du MinXue Fu GuanHua Gao He Gao Min Gao MingYu Ge YuDong Gu Ju Guan Can Gungor ChengCheng Guo DaWei Han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua Jiang WeiChun Jiang Jing Jin YongJie Jin Bing Li ChengKui Li Gang Li MaoShun Li Wei Li Xian Li XiaoBo Li XuFang Li YanGuo Li ZiJian Li ZhengWei Li XiaoHua Liang JinYuan Liao GuoQing Liu HongWei Liu ShaoZhen Liu XiaoJing Liu Yuan Liu YiNong Liu Bo Lu XueFeng Lu Tao Luo Xiang Ma Bin Meng Yi Nang JianYin Nie Ge Ou JinLu Qu Na Sai RenCheng Shang GuoHong Shen Liang Sun Ying Tan Lian Tao YouLi Tuo Chen Wang ChunQin Wang GuoFeng Wang HuanYu Wang Juan Wang WenShuai Wang YuSa Wang XiangYang Wen BaiYang Wu BoBing Wu Mei Wu GuangCheng Xiao ShaoLin Xiong LinLi Yan JiaWei Yang Sheng Yang YanJi Yang QiBin Yi Bin Yuan AiMei Zhang ChunLei Zhang ChengMo Zhang Fan Zhang HongMei Zhang Juan Zhang Qiang Zhang ShenYi Zhangs Shu Zhang Tong Zhang WanChang Zhang Wei Zhang WenZhao Zhang Yi Zhang YiFei Zhang YongJie Zhang Yue Zhang Zhao Zhang Zhi Zhang ZiLiang Zhang HaiSheng Zhao XiaoFan Zhao ShiJie Zheng JianFeng Zhou YuXuan Zhu Yue Zhu RenLin Zhuang 2020Science China(Physics,Mechanics & Astronomy)2020,63,4:2
8Evaluation of triage strategies for high-risk human papillomavirus-positive women in cervical cancer screening:A multicenter randomized controlled trial in different resource settings in China显示文摘Objective:We aimed to evaluate the effectiveness of different triage strategies for high-risk human papillomavirus(hrHPV)-positive women in primary healthcare settings in China.Methods:This study was undertaken in 11 rural and 9 urban sites.Women aged 35-64 years old were enrolled.HrHPV-positive women were randomly allocated to liquid-based cytology(LBC),visual inspection with acetic acid and Lugol’s iodine(VIA/VILI)(rural only)triage,or directly referred to colposcopy(direct COLP).At 24 months,hrHPV testing,LBC and VIA/VILI were conducted for combined screening.Results:In rural sites,1,949 hrHPV-positive women were analyzed.A total of 852,218 and 480 women were randomly assigned to direct COLP,LBC and VIA/VILI.At baseline,colposcopy referral rates of LBC or VIA/VILI triage could be reduced by 70%-80%.LBC(n=3 and n=7)or VIA/VILI(n=8 and n=26)could significantly decrease the number of colposcopies needed to detect one cervical intraepithelial neoplasia(CIN)2 or worse and CIN3+compared with direct COLP(n=14 and n=23).For the 24-month cumulative detection rate of CIN2+,VIA/VILI triage was 0.50-fold compared with LBC triage and 0.46-fold with the direct COLP.When stratified by age,baseline LBC triage+performed best(P<0.001),peaking among women aged 35-44 years(Ptrend=0.002).In urban sites,1,728 women were hrHPV genotyping test positive.A total of 408,571 and 568women were randomly assigned to direct COLP for HPV16/18+,direct COLP for other hrHPV subtypes+,and LBC triage for other hrHPV subtypes+.LBC(n=12 and n=31)significantly decreased the number of colposcopies needed to detect one CIN2+and CIN3+compared with direct COLP(n=14 and n=44).HPV16/18+increased the 24-month cumulative detection rate of CIN2+(17.89%,P<0.001).Conclusions:LBC triage for hrHPV-positive women in rural settings and direct COLP for HPV16/18+women and LBC triage for other hrHPV subtype+women in urban settings might be feasible strategies.Le Dang Linghua Kong Yuqian Zhao Yi Dai Li Ma Lihui Wei Shulan Zhang Jihong Liu Mingrong Xi Long Chen Xianzhi Duan Qing Xiao Guzhalinuer Abulizi Guonan Zhang Ying Hong Qi Zhou Xing Xie Li Li Mayinuer Niyazi Zhifen Zhang Jiyu Tuo Yiling Ding Youlin Qiao Jinghe Lang 2022Chinese Journal of Cancer Research2022,34,5:2
9Neoadjuvant chemotherapy for patients with resectable colorectal cancer liver metastases: A systematic review and meta-analysis显示文摘BACKGROUND In recent years,neoadjuvant chemotherapy(NAC)has been increasingly used in patients with resectable colorectal liver metastases.However,the efficacy and safety of NAC in the treatment of resectable colorectal liver metastases(CRLM)are still controversial.AIM To assess the efficacy and application value of NAC in patients with resectable CRLM.METHODS We searched PubMed,Embase,Web of Science,and the Cochrane Library from inception to December 2020 to collect clinical studies comparing NAC with non-NAC.Data processing and statistical analyses were performed using Stata V.15.0 and Review Manager 5.0 software.RESULTS In total,32 studies involving 11236 patients were included in this analysis.We divided the patients into two groups,the NAC group(that received neoadjuvant chemotherapy)and the non-NAC group(that received no neoadjuvant chemotherapy).The meta-analysis outcome showed a statistically significant difference in the 5-year overall survival and 5-year disease-free survival between the two groups.The hazard ratio(HR)and 95%confidence interval(CI)were HR=0.49,95%CI:0.39-0.61,P=0.000 and HR=0.4895%CI:0.36-0.63,P=0.000.The duration of surgery in the NAC group was longer than that of the non-NAC group[standardized mean difference(SMD)=0.41,95%CI:0.01-0.82,P=0.044)].The meta-analysis showed that the number of liver metastases in the NAC group was significantly higher than that in the non-NAC group(SMD=0.73,95%CI:0.02-1.43,P=0.043).The lymph node metastasis in the NAC group was significantly higher than that in the non-NAC group(SMD=1.24,95%CI:1.07-1.43,P=0.004).CONCLUSION We found that NAC could improve the long-term prognosis of patients with resectable CRLM.At the same time,the NAC group did not increase the risk of any adverse event compared to the non-NAC group.Yue Zhang Long Ge Jun Weng Wen-Yu Tuo Bin Liu Shi-Xun Ma Ke-Hu Yang Hui Cai 2021World Journal of Clinical Cases2021,9,22:2
10In situ two-step electrochemical preparation of fluoride-free nickel-based compound film on nickel plate for supercapacitors显示文摘A nickel-based compound layer was prepared on a nickel plate by anodization in a 75 wt% H_3PO_4 solution containing NH_4F. This layer was then treated by galvanostatic charge/discharge(GCD) until a black outer layer was detached, leaving behind a film on the nickel plate as a binder-free electrode material for supercapacitors. The microstructural characterization shows that the film consists of Ni(OH)_2and NiO, and no fluoride is found in the as-obtained film. Electrochemical tests demonstrate that this fluoride-free film electrode exhibits a high capacitance of 954 F g^(-1)at 7.5 Ag^(-1), excellent rate capability(a 19.5 % capacitance reduction with the current density increasing to 120 Ag^(-1)) and cycling stability.Within 3500 cycles, the specific capacitance does not decrease, but rather increases from 840 Fg^(-1)to approximately 1092 Fg^(-1)in the first 100 cycles at 60 Ag^(-1), and remains stable until the aforementioned layer is detached.Zhi-Biao Zou Xin-Bo Xiong Jun Ma Xie-Rong Zeng Tuo Huang Jun-Jie Li Bin Li 2016Rare Metals2016,35,12:2
11Analysis of permanent deformations of railway embankments under repeated vehicle loadings in permafrost regions显示文摘By large-scale dynamic tests carried out on a traditional sand-gravel embankment at the Beilu River section along the Qinghai-Tibet Railroad, we collected the acceleration waveforms close to the railway tracks when trains passed. The dynamic train loading was converted into an equivalent creep stress, using an equivalent static force method. Also, the creep equation of frozen soil was introduced according to the results of frozen soil rheological triaxial tests. A coupled creep model based on a time-hardening power function rule and the Druker-Prager yield and failure criterion was established to analyze the creep effects of a plain fill embankment under repeated train loads. The temperature field of the embankment in the permafrost area was set at the current geothermal conditions. As a result, the permanent deformation of the embankment under train loading was obtained, and the permanent deformation under the train loads to the total embankment deformation was also analyzed.Wei Ma Tuo Chen 2015Research in Cold and Arid Regions2015,7,6:2
12Diagenetic fluids evolution of Oligocene Huagang Formation sandstone reservoir in the south of Xihu Sag, the East China Sea Shelf Basin: constraints from petrology, mineralogy,and isotope geochemistry显示文摘The Oligocene Huagang Formation is the main sandstone reservoir in the Xihu Sag, situated in the east of the East China Sea Shelf Basin. With an integrated approach of thin-section petrography, ultra-violet fluorescence microscopy, scanning electron microscopy, and isotope geochemistry, the different diagenetic features were identified, the typical diagenetic parasequences were established, and the diagenetic fluids evolution history were reconstructed for the Oligocene Huagang Formation sandstone reservoir in the south of Xihu Sag. The Huagang Formation sandstone reservoir is now in Period B of the mesodiagenesis, which has undergone significant diagenetic alterations such as mechanical compaction, Pore-lining chlorite cement, feldspar dissolution, quartz cementation and dissolution, and carbonate cementation. Three types of carbonate cements(early siderite,medium ferrocalcite and late ankerite) were identified in the Huagang Formation sandstone reservoir. The carbon and oxygen isotopic compositions of carbonate cements show that the early calcite precipitate from alkaline lacustrine environment whereas the late carbonate cements were closely related to the organic acids. To the Huagang Formation sandstone reservoir, it has experienced two main episodes of dissolution during diagenesis.The early dissolution is that unstable components such as feldspar, lithic fragments, and carbonate cement were dissolved by acidic water. The second dissolution is that quartz and other silicate minerals were dissolved under the alkaline condition. Two main phases of hydrocarbon charging occurred in this study area. The first hydrocarbon emplacement was prior to the medium carbonate cementation but posterior to feldspar dissolution and the onset of quartz cementation at the end of the Miocene. The second hydrocarbon charging occurred in the Quaternary period after the late carbonate precipitation.HAO Lewei WANG Qi GUO Ruiliang TUO Chengrong MA Dongxu MOU Weiwei TIAN Bing 2018Acta Oceanologica Sinica2018,37,2:2
13Geochemistry, Sr-Nd-Pb Isotopic Compositions and Zircon U-Pb Geochronology of Neoproterozoic Mafic Dyke in the Douling Complex, South Qinling Belt, China显示文摘Mafic dyke swarm is widely developed in Proterozoic continental lithosphere.The Gangou diabase dyke from the Xixia area,intruded into the Douling complex of the South Qinling belt,yields zircon UPb age of 731 Ma.It has low SiO2 content(49.02 wt.%-49.37 wt.%)and Mg^#(34.0–37.7)and shows characteristics of subalkaline tholeiite series.They show highΣREE(155.5×10^-6–184.7×10^-6),weak negative Eu anomaly(δEu=0.88-0.93),slight depletion of Nb and Ta,and enrichment of LILE.Their major and trace element,Sr-Nd-Pb isotope and clinopyroxene compositions indicate that it originated from the partial melting of the asthenospheric mantle within-plate extension setting and was slightly contaminated by crust compositions.The similarities of formation age,petrogenesis,source characteristic and tectonic setting for Gangou diabase with mafic dykes in Wudang Block and mafic volcanic rocks in Yaolinghe Group indicate that the South Qinling belt underwent strong continental extension in Neoproterozoic during 796–685 Ma most likely correspondence to the breaking-up of the Rodinia supercontinent.Tong Li Liang Liu Xiao-Ying Liao Yong-Sheng Gai Tuo Ma Chao Wang 2020Journal of Earth Science2020,31,2:2
14Accessibility and catalysis of acidic sites in hierarchical ZSM-5 prepared by silanization 显示文摘Xue Zhaoteng Zhang Tuo Ma Jinghong 2012Microporous and Mesoporous Mat2012,151,:1
15Synthesis of nanosized ZSM-5 zeolite with intracrystalline mesopores 显示文摘Xue Zhaoteng Ma Jinghong Zhang Tuo 2012Mater Lett2012,68,:1
16Synthesis of nanosized ZSM-5 zeolite with intracrystalline mesopores显示文摘Xue Zhaoteng Ma Jinghong Zhang Tuo 2012Materials Letters2012,68,:1
17Reactive oxygen species induce a Ca (2+)-spark increase in sensitized murine airway smooth muscle cells 显示文摘Tuo QR Ma YF Chen W 2013Biochem Biophys Res Commun2013,434,2:1
18Dynamic behavior of the Qinghai-Tibetan railway embankment in permafrost regions under trained-induced vertical loads显示文摘The unfrozen water content and ice content of frozen soil change continuously with varying temperatures,resulting in the temperature dependence of mechanical properties of frozen soil.Thus the dynamic behavior of embankment in permafrost regions under train loading also alters with seasons.Based on a series of strong-motion tests that were carried out on the traditional embankment of Qinghai-Tibet Railway(QTR)in permafrost regions,the acceleration waveforms recorded at the embankment shoulder and slope toes were obtained.Testing results show an obvious attenuation effect on the vertical train loading from road shoulder to slope toes.Furthermore,numerical simulations of a traditional embankment under vertical train loading in different seasons were conducted,and the dynamic behavior of the embankment was described.The results show that the vibration attenuation in the cold season is greater than that in the warm season.The maximum acceleration of vibration drops to about 5%when the train vibration load is transferred through the embankment into the permafrost,and the high-frequency components are absorbed when the vibration transmits downward.Moreover,the dynamic stress under the dynamic train loading decreases exponentially with an increasing depth in different seasons.The results can be a reference for design and maintenance of embankments in permafrost regions.Tuo Chen ZhiJian Wu YanHu Mu Wei Ma JianZhou Wang 2020Research in Cold and Arid Regions2020,12,4:1
19Recent advances in screening amino acid overproducers显示文摘Microbial fermentation has contributed to 80%of global amino acid production.The key to microbial fermentation is to obtain fermentation strains with high performance to produce target amino acids with a high yield.These strains are primarily derived from screening enormous mutant libraries.Therefore,a high-throughput,rapid,accurate,and universal screening strategy for amino acid overproducers has become a guarantee for ob-taining optional amino acid overproducers.In recent years,the rapid development of various novel screening strategies has been witnessed.However,proper analysis and discussion of these innovative technologies are lacking.Here we systematically reviewed recent advances in screening strategies:the auxotrophic-based strategy,the biosensor-based strategy,and the latest translation-based screening strategy.The design principle,application scope,working efficiency,screening accuracy,and universality of these strategies were discussed in detail.The potential for screening nonstandard amino acid overproducers was also analyzed.Guidance for the improvement of future screening strategies is provided in this review,which could expedite the reconstruction of amino acid overproducers and help promote the fermentation industry to reduce cost,increase yield,and improve quality.Junkai Tuo Said Nawab Xiaoyan Ma Yi-Xin Huo 2023Engineering Microbiology2023,3,1:0
20TaARPC5 is required for wheat defense signaling in response to infection by the stripe rust fungus显示文摘Numerous studies using a combination of confocal microscopic-and pharmacological-based approaches have demonstrated that the actin cytoskeleton dynamically responds to pathogen infection.Here,we observed that phalloidin treatment induced actin nucleation,resulting in enhanced resistance of wheat against the stripe rust pathogen Puccinia striiformis f.sp.tritici(Pst).To define the mechanism underpinning this process,we characterized a family of conserved actin-binding proteins,the actin related protein(ARP)family,which controls actin polymerization.Specifically,we identified and characterized a wheat ARPC gene(Ta ARPC5),which encodes a 136-amino acid protein containing a P16-Arc domain,the smallest subunit of the ARP2/3 complex.Ta ARPC5 m RNA accumulation was induced following the infection of plants with the avirulent Pst strain,and following the elicitation with flagellin(e.g.,flg22)as well.Subcellular localization analysis revealed that Ta ARPC5 is primarily localized to the cortical actin cytoskeleton,and its precise cellular localizations suggest the proximity to processes correlated with the actin-organelle interface.Upon treatment with virulent Pst,Ta ARPC5-knockdown plants exhibited a significant reduction in the expression of PTI-specific m RNAs.Conversely,we observed enhanced induction of reactive oxygen species(ROS)accumulation and a decrease in Ta CAT1 expression following infection with an incompatible Pst isolate.Together with yeast complementation assays,the current study demonstrates a role for Ta ARPC5 in resistance signaling in wheat against Pst infection by regulating the host actin cytoskeleton.Jia Guo Huan Peng Tuo Qi Sanding Xu Md Ashraful Islam Brad Day Qing Ma Zhensheng Kang Jun Guo 2022The Crop Journal2022,10,1:0
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