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66篇 您的检索式:作者名="Jifeng Xu"
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1Adakite-type sodium-rich rocks in Awulale Mountain of west Tianshan:Significance for the vertical growth of continental crust显示文摘The sodium-rich dacites and albite porphyries of Permian in the Awulale Mountain of west Tianshan have unique chemical and trace element signatures identical to adakite. These intermediate-acidic igneous rocks are characterized by high Na2O, Al2O3 and Sr contents and high Sr/Y and La/Y ratios (>40 and >20, respectively), and low Y and Yb contents, and strong depletion in HREE, and positive Eu anomaly. The (143Nd/144Nd)i is in the range from0.51236 to 0.51248 and the εNd(t) is positive value (+0.79-+3.11); the (87Sr/86Sr)i is in the range from 0.7052 to 0.7054. These Nd and Sr isotopic composition features indicate that the source rocks of these adakite-type rocks are from a weakly depleted mantle, or a depleted mantle, but was contaminated by the crustal materials. These adakite-type rocks were most likely derived from the partial melting of new underplated basaltic rocks under the conditions of amphibo-lite to eclogite transition in the postcollisional environment of North Xinjiang during the PermianXIONG Xiaolin ZHAO Zhenhua BAI Zhenghua MEI Houjun WANG Yixian WANG Qiang XU Jifeng Niu Hecai BAO Zhiwei 2001Chinese Science Bulletin2001,46,10:25
2Efficacy and safety of sorafenib in patients in the Asia-Pacific region with advanced hepatocellular carcinoma: a phase III randomised, double-blind, placebo-controlled trial显示文摘Ann-Lii Cheng Yoon-Koo Kang Zhendong Chen Chao-Jung Tsao Shukui Qin Jun Suk Kim Rongcheng Luo Jifeng Feng Shenglong Ye Tsai-Sheng Yang Jianming Xu Yan Sun Houjie Liang Jiwei Liu Jiejun Wang Won Young Tak Hongming Pan Karin Burock Jessie Zou Dimitris Volio 2009Lancet Oncology2009,,1:23
3Age of Anzishan granulites in the Mianxian-Lueyang suture zone of Qingling orogen:With a discussion of the timing of final assembly of Yangtze and North China craton blocks显示文摘Many granulite blocks have been recently dis-covered in the Anzishan area, Mianxian County, ShaanxiProvince, in the central segment of the Manxian-Lueyangsuturc zone. Sm-Nd isochron and 40 Ar39 Ar ages of mineralsamples of granulites from this area are reported in the note.The granulite mineral samples give a Sm-Nd isochron age oft=(206 ± 55) Ma (2σ), with INd = 0.51302±7(2σ) and MSWD =1.6, and a biotite 40Ar/39 Ar plateau age of (199.7±l.7) Ma(2σ). The formation and uplift of the granulites were relatedto subduction of the Yangtze block beneath the SouthQinling microcontinent and their collision and the finalamalgamation of the Yangtze and Sino-Korean craton blocksin the Indosinian, and their age is consistent with or close tothose of the Dabie ultrahigh-pressure and high-pressuremetamorphic rocks, so have great tectonic significance.ZHANG Zongqing ZHANG Guowei TANG SuohaiV XU Jifeng YANG Yongcheng WANG Jinhui 2002Chinese Science Bulletin2002,47,22:19
4Effective gene targeting in rabbits using RNA-guided Cas9 nucleases显示文摘Dongshan Yang Jie Xu Tianqing Zhu Jianglin Fan Liangxue Lai Jifeng Zhang Y. Eugene Chen 2014Journal of Molecular Cell Biology2014,8,1:18
5Chronology and Geochemistry of the Nadingcuo Volcanic Rocks in the Southern Qiangtang Region of the Tibetan Plateau:Partial Melting of Remnant Ocean Crust along the Bangong-Nujiang Suture显示文摘计算碱的岩石主要 trachyte 和 trachyandesite 填写了的 Nadingcuo high-K 是在在西藏的高原的南部的 Qiangtang 岩层的暴烈的岩石的最大的露头区域。然而,他们的准确来源和 peterogenesis 仍然被辩论。40Ar-39Ar 和 LAM-ICPMS 锆石 U-Pb 同位素的标明日期证实这些岩石爆发了在始新世。另外, Nadingcuo 暴烈的岩石被高 Sr/Y 内容比率描绘,与从海洋的外壳的部分融化导出的 adakite 类似。他们能进一步作为高 Mg#(Mg#= 4857 ) 和低 Mg#(Mg#= 3342 ) 被分类子类型。Nadingcuo adakitic 岩石有相对低(87Sr/86Sr ) 我和高 Nd (t) ,显示出类似的一个趋势到在 Bangong-Nujiang 海洋的外壳中在场的 Dongcuo ophiolite。简单建模显示 Nadingcuo adakitic 岩石是与 10%20% 源于 Bangong-Nujiang 海洋的暗岩的混合拉萨岩层的外壳的材料。在这些底上,我们建议低 Mg# Nadingcuo adakitic 岩石是残余的部分融化的产品有小沉积的海洋的外壳,和高 Mg# 岩石是在升起之间的反应的结果残余融化有 subducted 的海洋的外壳沉积和披风楔。因此, Nadingcuo adakitic 岩石的起源可能与印度亚洲的碰撞在新生代期间触发的 intracontinental subduction 有关。WANG Baodi CHEN Jianlin XU Jifeng WANG Liquan ZENG Qinggao DONG Yanhui 2010Acta Geologica Sinica(English Edition)2010,84,6:15
6The recognition of adakite-type gneisses in the North Dabie Mountain and its implication to ultrahigh pressure metamorphic geology显示文摘Adakite is an igneous rock generated by the partial melting of subducting ocean slab in an island arc setting. Meanwhile, residuals of the slab-melting are transformed to eclogite or garnet-amphibolite during a slab subduction process. This note reports the adakite-type grey gneisses discovered in the North Dabie Mountain. These adakitic rocks are characterized by high AI2O3(14.97%-17.56%), Sr (545-941 μg/g), Sr/Y (44.71-218.98), La/Yb (16.70-97.50), and low Y (3.32-12.19μg/g), Yb (0.31-1.34 μg/g), Sc (0.92-4.2μg/g), as well as positive Sr anomaly but absent or positive Eu anomaly. They are different from the low aluminum grey gneisses with low AI2O3 (13.73%-14.38%), Sr (262-409 μg/g), Sr/Y (6.46-15.97) and La/Yb (1.90-22.60), high Y(21.79-36.24 μg/g), Yb (2.00-5.59 μg/g) , Sc (8.30%-12.70%), and negative Sr, Eu anomaly in the North Dabie Mountain. The adakite-type grey gneisses in the North Dabie Mountain were most probably formed by the partial melting of subducting ocean slab before theWANG Qiang XU Jifeng WANG Jianxin ZHAO Zhenhua WANG Renjing QIU Jiaxiang XIONG Xiaolin SANG Longkang PENG Lianhong 2000Chinese Science Bulletin2000,45,21:12
7Adakites related to subduc-tion in the northern margin of Junggar arc for the Late Paleozoic:Products of slab melting显示文摘Volcanic rocks with adakitic compositional signature have been recognized in the northern margin of ancient Junggar island arc for the Late Paleozoic. These adakites for the early Devonian from the Tuoranggekudouke Group (D1t) are characteristic of high Sr, Sr/Y and (La/Yb)N but low Y, Yb and HREE. Their compositional characteristics are much similar to those of the typical adakites in the world but distinct from those of the normal arc volcanic rocks from the same Group. We conclude that these adakitic volcanic rocks were produced by slab melting during the early period of Paleoasia-ocean lithosphere subduction. This infers that the Paleoasia Ocean in the north Junggar area began a new subduction process in the early Devonian.Jifeng Xu Houjun Mei Xueyuan Yu Zhenghua Bai Hecai Niu Fanrong Chen Zuoping Zhen Qiang Wang 2001Chinese Science Bulletin2001,46,15:11
8Recognition of Ophiolite Belt and Granulite in Northern Area of Mian-Lue, Southern Qinling, China and Their Implication显示文摘RecognitionofOphioliteBeltandGranuliteinNorthernAreaofMian-Lue,SouthernQinling,ChinaandTheirImplication¥XuJifeng(Departmentof...Xu Jifeng(Department of Geology, China University of Geosciences, Wuhan 430074)Zhang Benren Han Yinwen(Department of Geochehastry, China University of Geosciences, Wuhan 430074) 1994Journal of Earth Science1994,13,1:9
9Irinotecan plus S-1 versus S-1 in patients with previously treated recurrent or metastatic esophageal cancer(ESWN 01):a prospective randomized,multicenter,open-labeled phase 3 trial显示文摘Background:The benefit of systemic treatments in esophageal squamous cell carcinoma(ESCC)which has pro-gressed after chemotherapy is still uncertain and optimal regimens based on randomized trials have not yet been established.We aimed to compare the efficacy of irinotecan plus S-1 with S-1 monotherapy in recurrent or metastatic ESCC patients who had resistance to platinum-or taxane-based chemotherapy.Methods:We conducted a prospective randomized,multicenter,open-label,phase 3 trial in 15 centers across China.Eligible patients were adults with histologically confirmed recurrent or metastatic ESCC,and were randomly assigned(ratio,1:1)to receive either irinotecan plus S-1(intravenous infusion of irinotecan[160 mg/m2]on day 1 and oral S-1[80-120 mg]on days 1-10,repeated every 14 days)or oral S-1 monotherapy(80-120 mg/day on days 1-14,repeated every 21 days)using a central computerized minimization procedure.The primary endpoint was progression-free survival(PFS).Results:Between December 23,2014 and July 25,2016,we screened 148 patients and randomly assigned 123 patients to receive either irinotecan plus S-1 regimen(n=61)or S-1 monotherapy(n=62).After a median follow-up of 29.2 months(95%confidence interval[CI]17.5-40.9 months),the median PFS was significantly longer in the irinotecan plus S-1 group than in the S-1 monotherapy group(3.8 months[95%CI 2.9-4.3 months]vs.1.7 months[95%CI 1.4-2.7 months],hazard ratio=0.58,95%CI 0.38-0.86,P=0.006).The objective response rates were 24.6%in the irinotecan plus S-1 group and 9.7%in the S-1 monotherapy group(P=0.002).The patients in the irinotecan plus S-1 group presented with increased rates of grade 3-4 leukopenia(16.4%vs.0%),neutropenia(14.8%vs.1.6%),and nausea(4.9%vs.0%).No significant difference in grade 3-4 diarrhea and no treatment-related deaths were observed in both groups.Conclusions: The combination of irinotecan with S-1 was similarly tolerable but significantly prolonged PFS compared to S-1 monotherapy as a second- or third-line treatment in patients with recurrent or metastatic ESCC.Jing Huang Binghe Xu Ying Liu Junxing Huang Ping Lu Yi Ba Lin Wu Yuxian Bai Shu Zhang Jifeng Feng Ying Cheng Jie Li Lu Wen Xianglin Yuan Changwu Ma Chunhong Hu Qingxia Fan Xi Wang 2019Cancer Communications2019,39,1:8
10Discovery of the highly depleted N-MORB-type volcanic rocks: new evidence for the Mianlue paleo-ocean显示文摘The highly depleted N-MORB-type volcanic rocks have been discovered in Mianlue mélange of Qinling orogenic belt, central China. These mafic rocks are associated with the meta-peridotites, showing LREE-depleted pattern, similar to N-MORB and typical ophiolites. It is indicated that an ancient ocean existed in the Mianlue area of Qinling orogenic belt during the late Paleozoic.Jifeng Xu Xueyuan Yu Xianhua Li Yinwen Han Jihu Shen Benren Zhang 1998Chinese Science Bulletin1998,43,6:7
11Identification of an Early–Middle Jurassic oxidized magmatic belt,south Gangdese,Tibet,and geological implications显示文摘The south Gangdese region is the site of subduction of the Neo-Tethys and subsequent continental collision. Compared with widespread Cretaceous and Cenozoic magmatism, Early–Middle Jurassic magmatic rocks and related deposits are rarely reported. Our work identified a >200 km long felsic rock belt associated with Cu mineralization in the south Gangdese region. We report here zircon U–Pb ages, zircon Ce^(4+)/Ce^(3+)values, and mineral assemblages of two Cu mineralized intrusions within the belt. A hornblende granite and a diorite porphyry were emplaced at 177.3 Ma and 166.3 Ma, respectively.Geological occurrence and magmatic hematite–magnetite–chalcopyrite intergrowths suggest that Cu mineralization formed coeval with Jurassic intrusions. Mineralized intrusions have high zircon Ce^(4+)/Ce^(3+)and EuN/Eu?N ratios, and hematite–magnetite intergrowths, suggesting their parent magmas were highly oxidized. Hornblende is common and primary fluid inclusions are found in titanite and apatite,indicating their parent magmas were water-saturated and exsolved volatile phases at early stage of magmatic evolution. Those magma characters contribute to the formation of porphyry Cu deposits. Given that majority subduction-related porphyry Cu systems have been eroded following uplift and denudation, the well-preserved Early–Middle Jurassic Cu mineralized igneous rocks in south Gangdese are favorable prospecting targets for subduction-related porphyry Cu deposits.Yinqiao Zou Xilian Chen Wenting Huang Jian Zhang Huaying Liang Jifeng xu Ling Chen 2017Science Bulletin2017,62,12:7
12Discovery of Mg-righ volcanic rock series in western Altay area, Xinjiang and its geologic significance显示文摘A series of Mg-rich volcanic rocks, including rare Mg-rich dacites in the Asherle copper mine, western Altay Area, has been found. This suite of Mg-rich volcanic rocks is characterized by high SiO2, MgO and low Ti contents. Compared with the island arc tholeiite and MORB, these rocks are depleted in HFSE and are therefore similar to boninite. The dacites show V-shaped distribution REE patterns whereas the basalts display flat orHecai Niu Jifeng Xu Xueyuan Yu Fanrong Chen Zouping Zheng 1999Chinese Science Bulletin1999,44,18:4
13Efficacy and safety of sorafenib in patients in the Asia-Pacific region with advanced hepatocellular carcinoma: a phase III randomised, double-blind, placebo-controlled trial显示文摘Ann-Lii Cheng Yoon-Koo Kang Zhendong Chen Chao-Jung Tsao Shukui Qin Jun Suk Kim Rongcheng Luo Jifeng Feng Shenglong Ye Tsai-Sheng Yang Jianming Xu Yan Sun Houjie Liang Jiwei Liu Jiejun Wang Won Young Tak Hongming Pan Karin Burock Jessie Zou Dimitris Volio 2009Lancet Oncology2009,,1:3
14Entinostat,a classⅠselective histone deacetylase inhibitor,plus exemestane for Chinese patients with hormone receptor-positive advanced breast cancer:A multicenter,randomized,double-blind,placebo-controlled,phase 3 trial显示文摘Entinostat plus exemestane in hormone receptor-positive(HR+)advanced breast cancer(ABC)previously showed encouraging outcomes.This multicenter phase 3 trial evaluated the efficacy and safety of entinostat plus exemestane in Chinese patients with HR+ABC that relapsed/progressed after≥1 endocrine therapy.Patients were randomized(2:1)to oral exemestane 25 mg/day plus entinostat(n=235)or placebo(n=119)5 mg/week in 28-day cycles.The primary endpoint was the independent radiographic committee(IRC)-assessed progression-free survival(PFS).The median age was 52(range,28—75)years and 222(62.7%)patients were postmenopausal.CDK4/6 inhibitors and fulvestrant were previously used in 23(6.5%)and 92(26.0%)patients,respectively.The baseline characteristics were comparable between the entinostat and placebo groups.The median PFS was 6.32(95%CI,5.30—9.11)and 3.72(95%CI,1.91—5.49)months in the entinostat and placebo groups(HR,0.76;95%CI,0.58—0.98;P=0.046),respectively.Grade≥3 adverse events(AEs)occurred in 154(65.5%)patients in the entinostat group versus 23(19.3%)in the placebo group,and the most common grade≥3 treatment-related AEs were neutropenia[103(43.8%)],thrombocytopenia[20(8.5%)],and leucopenia[15(6.4%)].Entinostat plus exemestane significantly improved PFS compared with exemestane,with generally manageable toxicities in HR+ABC(ClinicalTrials.gov#NCT03538171).Binghe Xu Qingyuan Zhang Xichun Hu Qing Li Tao Sun Wei Li Quchang Ouyang Jingfen Wang Zhongsheng Tong Min Yan Huiping Li Xiaohua Zeng Changping Shan Xian Wang Xi Yan Jian Zhang Yue Zhang Jiani Wang Liang Zhang Ying Lin Jifeng Feng Qianjun Chen Jian Huang Lu Zhang Lisong Yang Ying Tian Hongyan Shang 2023Acta Pharmaceutica Sinica B2023,13,5:3
15Afatinib versus cisplatin plus gemcitabine for first-line treatment of Asian patients with advanced non-small-cell lung cancer harbouring EGFR mutations (LUX-Lung 6): an open-label, randomised phase 3 trial显示文摘Yi-Long Wu Caicun Zhou Cheng-Ping Hu Jifeng Feng Shun Lu Yunchao Huang Wei Li Mei Hou Jian Hua Shi Kye Young Lee Chong-Rui Xu Dan Massey Miyoung Kim Yang Shi Sarayut L Geater 2014Lancet Oncology2014,,2:3
16Geochemistry of the Eocene Felsic Porphyric Rocks and High-Mg Potassic Rocks along JARSZ:Implication for the Tectonic Evolution in Eastern Tibet显示文摘始新世 felsic porphyric 岩石和 high-Mg 钾的暴烈的岩石(HMPR ) 沿着 Jinshajiang-Ailao 掸人红河发生砍在东方西藏的地区(JARSZ ) 。与 HMPR ,它通常被相信从一个充实的披风被采购原料相比, felsic porphyric 岩石显示出类似的 K2O 内容,在 LREE 和 LILE 的丰富,特别地放射产生的同位素(例如 Sr 和 Nd )类似于前者的特征,与 HMPR 有关很可能暗示 felsic porphyric 岩石的产生,尽管他们两个都有清楚地不同的专业和踪迹元素作文。在在在东方西藏的 felsic porphyric 岩石和 HMPR 之间的空间时间的分发和类似的 Sr-Nd 特征的靠近的关系显示他们俩被一个类似的构造过程(事件) 可能形成。在南部、东方的西藏联合基本的堤,我们建议在南部的西藏的蘸北方的 Neo-Tethyan 平板的折断在 5040 妈期间, high-Mg 的触发的形成钾的岩浆。这由在 high-Mg 的更低的外壳,或分别结晶化中的 underplating HMPR 的部分融化导致了发展中的 felsic porphyric 岩浆生产钾的岩浆。平板在的折断始新世可能也贡献了与更早的 subduction 事件有关的丰富的形成矿石的材料,导致 porphyric 的形成在东方西藏扔 JARSZ。CHEN Jianlin XU Jifeng WANG Baodi KANG Zhiqiang 2010Acta Geologica Sinica(English Edition)2010,84,6:3
17Current management of chemotherapy-induced neutropenia in adults:key points and new challenges显示文摘Chemotherapy-induced neutropenia(CIN)is a potentially fatal and common complication in myelosuppressive chemotherapy.The timing and grade of CIN may play prognostic and predictive roles in cancer therapy.CIN is associated with older age,poor functional and nutritional status,the presence of significant comorbidities,the type of cancer,previous chemotherapy cycles,the stage of the disease,specific chemotherapy regimens,and combined therapies.There are many key points and new challenges in the management of CIN in adults including:(1)Genetic risk factors to evaluate the patient’s risk for CIN remain unclear.However,these risk factors urgently need to be identified.(2)Febrile neutropenia(FN)remains one of the most common reasons for oncological emergency.No consensus nomogram for FN risk assessment has been established.(3)Different assessment tools[e.g.,Multinational Association for Supportive Care in Cancer(MASCC),the Clinical Index of Stable Febrile Neutropenia(CISNE)score model,and other tools]have been suggested to help stratify the risk of complications in patients with FN.However,current tools have limitations.The CISNE score model is useful to support decision-making,especially for patients with stable FN.(4)There are still some challenges,including the benefits of granulocyte colony stimulating factor treatment and the optimal antibiotic regimen in emergency management of FN.In view of the current reports,our group discusses the key points,new challenges,and management of CIN.Committee of Neoplastic Supportive-Care(CONS),China Anti-Cancer Association Committee of Clinical Chemotherapy,China Anti-Cancer Association Yi Ba Yuankai Shi Wenqi Jiang Jifeng Feng Ying Cheng Li Xiao Qingyuan Zhang Wensheng Qiu Binghe Xu Ruihua Xu Bo Shen Zhiguo Luo Xiaodong Xie Jianhua Chang Mengzhao Wang Yufu Li Yuerong Shuang Zuoxing Niu Bo Liu Jun Zhang Li Zhang Herui Yao Conghua Xie Huiqiang Huang Wangjun Liao Gongyan Chen Xiaotian Zhang Hanxiang An Yanhong Deng Ping Gong Jianping Xiong Qinghua Yao Xin An Cheng Chen Yanxia Shi Jialei Wang Xiaohua Wang Zhiqiang Wang Puyuan Xing Sheng Yang Chenfei Zhou 2020Cancer Biology & Medicine2020,17,4:2
18Analysis and Improvement of an Efficient Controlled Quantum Secure Direct Communication and Authentication Protocol显示文摘The controlled quantum secure direct communication(CQSDC)with authentication protocol based on four particle cluster states via quantum one-time pad and local unitary operations is cryptanalyzed.It is found that there are some serious security issues in this protocol.An eavesdropper(Eve)can eavesdrop on some information of the identity strings of the receiver and the controller without being detected by the selective-CNOT-operation(SCNO)attack.By the same attack,Eve can also steal some information of the secret message that the sender transmits.In addition,the receiver can take the same kind of attack to eavesdrop on some information of the secret message out of the control of the controller.This means that the requirements of CQSDC are not satisfied.At last,we improve the original CQSDC protocol to a secure one.Jifeng Zhong Zhihao Liu Juan Xu 2018Computers, Materials & Continua2018,,12:2
19UV-enhanced bioactivity and cell response of micro-arc oxidized titania coatings显示文摘Yong Han Donghui Chen Jifeng Sun Yumei Zhang Kewei Xu 2008Acta Biomaterialia2008,,5:2
20Facet-dependent electrochemiluminescence spectrum of nanostructured ZnO显示文摘A facet-dependent electrochemiluminescence (ECL) behavior was found for nanostructured ZnO with different dominant exposing planes.The ECL spectrum of nanostructured ZnO was recorded by the emission scan mode with a fluorescence spectrometer and applied to investigate the difference of surface state for different crystal planes.Electronic structure calculations based on density functional theory were used to study the effect of crystal plane on the band structure and density of states.It revealed that the ECL emission was originated primarily from the recombination of electrons from Zn 4s and the hole from O 2p,which could be utilized to study the physical and chemical properties of surface structures of as-prepared nanostructured ZnO.A physical model was suggested to elucidate the differences of ECL spectra.A concept was proposed that the energy released as photons during ECL process of nanocrystalline semiconductor materials will be correlated with the energy level of active sites located at different crystal planes.WANG Lei YUE QiaoLi LI HaiBo XU ShuLing GUO LianShun ZHANG XianXi WANG HuaiSheng GAO XueXi WANG WenJun LIU JiFeng LIU Peng 2013Science China Chemistry2013,56,1:2
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