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1Decratonic gold deposits显示文摘The North China Craton(NCC) hosts numerous gold deposits and is known as the most gold-productive region of China. The gold deposits were mostly formed within a few million years in the Early Cretaceous(130–120 Ma), coeval with widespread occurrences of bimodal magmatism, rift basins and metamorphic core complexes that marked the peak of lithospheric thinning and destruction of the NCC. Stable isotope data and geological evidence indicate that ore-forming fluids and other components were largely exsolved from cooling magma and/or derived from mantle degassing during the period of lithospheric extension. Gold mineralization in the NCC contrasts strikingly with that of other cratons where gold ore-forming fluids were sourced mostly from metamorphic devolatization in compressional or transpressional regimes. In this paper, we present a summary and discussion on time-space distribution and ore genesis of gold deposits in the NCC in the context of the timing, spatial variation, and decratonic processes. Compared with orogenic gold deposits in other cratonic blocks, the Early Cretaceous gold deposits in the NCC are quite distinct in that they were deposited from magma-derived fluids under extensional settings and associated closely with destruction of cratonic lithosphere. We argue that Early Cretaceous gold deposits in the NCC cannot be classified as orogenic gold deposits as previously suggested, rather, they are a new type of gold deposits, termed as 'decratonic gold deposits' in this study. The westward subduction of the paleo-West Pacific plate(the Izanagi plate) beneath the eastern China continent gave rise to an optimal tectonic setting for large-scale gold mineralization in the Early Cretaceous. Dehydration of the subducted and stagnant slab in the mantle transition zone led to continuous hydration and considerable metasomatism of the mantle wedge beneath the NCC. As a consequence, the refractory mantle became oxidized and highly enriched in large ion lithophile elements and chalcophile elements(e.g., Cu, Au, Ag and Te). Partial melting of such a mantle would have produced voluminous hydrous, Au- and S-bearing basaltic magma, which, together with crust-derived melts induced by underplating of basaltic magma, served as an important source for ore-forming fluids. It is suggested that the Eocene Carlin-type gold deposits in Nevada, occurring geologically in the deformed western margin of the North America Craton, are comparable with the Early Cretaceous gold deposits of the NCC because they share similar tectonic settings and auriferous fluids. The NCC gold deposits are characterized by gold-bearing quartz veins in the Archean amphibolite facies rocks, whereas the Nevada gold deposits are featured by fine-grained sulfide dissemination in Paleozoic marine sedimentary rocks. Their main differences in gold mineralization are the different host rocks, ore-controlling structures, and ore-forming depth. The similar tectonic setting and ore-forming fluid source, however, indicate that the Carlin-type gold deposits in Nevada are actually analogous to decratonic gold deposits in the NCC. Gold deposits in both the NCC and Nevada were formed in a relatively short time interval(<10 Myr) and become progressively younger toward the subduction zone. Younging of gold mineralization toward subduction zone might have been attributed to retreat of subduction zone and rollback of subducted slab. According to the ages of gold deposits on inland and marginal zones, the retreat rates of the Izanagi plate in the western Pacific in the Early Cretaceous and the Farallon plate of the eastern Pacific in the Eocene are estimated at 8.8 cm/yr and 3.3 cm/yr, respectively.ZHU RiXiang FAN HongRui LI JianWei MENG QingRen LI ShengRong ZENG QingDong 2015Science China Earth Sciences2015,58,9:37
2Efficacy and safety of a novel anti-HER2 therapeutic antibody RC48 in patients with HER2-overexpressing,locally advanced or metastatic gastric or gastroesophageal junction cancer:a single-arm phase II study显示文摘Background:Current treatment options for human epidermal growth factor receptor 2(HER2)-overexpressing gastric cancer at third-line have shown limited clinical benefit.Further,there is no specific treatment for HER2 immunohistochemistry(IHC)2+and fluorescence in-situ hybridization-negative patients.Here,we report the efficacy and safety of a novel anti-HER2 antibody RC48 for patients with HER2-overexpressing,advanced gastric or gastroesophageal junction cancer.Methods:Patients with HER2-overexpressing(IHC 2+or 3+),locally advanced or metastatic gastric or gastroesophageal junction cancer who were under at least second-line therapy were eligible and received RC482.5 mg/kg alone every 2 weeks.The primary endpoint was the objective response rate(ORR)assessed by an independent review committee.Secondary endpoints included progressionfree survival(PFS),overall survival(OS),duration of response,time to progression,disease control rate,and safety.Results:Of 179 patients screened,125 were eligible and received RC48 treatment.The ORR was 24.8%(95%confidence interval[CI]:17.5%-33.3%).The median PFS and OS were 4.1 months(95%CI:3.7-4.9 months)and 7.9 months(95%CI:6.7-9.9 months),respectively.The most frequently reported adverse events were decreased white blood cell count(53.6%),asthenia(53.6%),hair loss(53.6%),decreased neutrophil count(52.0%),anemia(49.6%),and increased aspartate aminotransferase level(43.2%).Serious adverse events(SAEs)occurred in 45(36.0%)patients,and RC48-related SAEs were mainly decreased neutrophil count(3.2%).Seven patients had adverse events that led to death were not RC48-related.Conclusions:RC48 showed promising activity with manageable safety,suggesting potential application in patients with HER2-overexpressing,advanced gastric or gastroesophageal junction cancer who have previously received at least two lines of chemotherapy.Zhi Peng Tianshu Liu Jia Wei Airong Wang Yifu He Liuzhong Yang Xizhi Zhang Nanfeng Fan Suxia Luo Zhen Li Kangsheng Gu Jianwei Lu Jianming Xu Qingxia Fan Ruihua Xu Liangming Zhang Enxiao Li Yuping Sun Guohua Yu Chunmei Bai Yong Liu Jiangzheng Zeng Jieer Ying Xinjun Liang Nong Xu Chao Gao Yongqian Shu Dong Ma Guanghai Dai Shengmian Li Ting Deng Yuehong Cui Jianmin Fang Yi Ba Lin Shen 2021Cancer Communications2021,41,11:29
3Single-cell transcriptomic analysis defines the interplay between tumor cells,viral infection,and the microenvironment in nasopharyngeal carcinoma显示文摘Nasopharyngeal carcinoma(NPC)is an Epstein-Barr virus(EBV)-associated malignancy with a complex tumor ecosystem.How the interplay between tumor cells,EBV,and the microenvironment contributes to NPC progression and immune evasion remains unclear.Here we performed single-cell RNA sequencing on^104,000 cells from 19 EBV^+NPCs and 7 nonmalignant nasopharyngeal biopsies,simultaneously profiling the transcriptomes of malignant cells,EBV,stromal and immune cells.Overall,we identified global upregulation of interferon responses in the multicellular ecosystem of NPC.Notably,an epithelial–immune dual feature of malignant cells was discovered and associated with poor prognosis.Functional experiments revealed that tumor cells with this dual feature exhibited a higher capacity for tumorigenesis.Further characterization of the cellular components of the tumor microenvironment(TME)and their interactions with tumor cells revealed that the dual feature of tumor cells was positively correlated with the expression of co-inhibitory receptors on CD8^+tumor-infiltrating T cells.In addition,tumor cells with the dual feature were found to repress IFN-γproduction by T cells,demonstrating their capacity for immune suppression.Our results provide new insights into the multicellular ecosystem of NPC and offer important clinical implications.Shanzhao Jin Ruoyan Li Ming-Yuan Chen Chao Yu Lin-Quan Tang Yan-Min Liu Jiang-Ping Li Yi-Na Liu Yi-Ling Luo Yifan Zhao Yu Zhang Tian-Liang Xia Shang-Xin Liu Qi Liu Guan-Nan Wang Rui You Jing-Yun Peng Jiang Li Feng Han Jianwei Wang Qiu-Yan Chen Li Zhang Hai-Qiang Mai Benjamin E.Gewurz Bo Zhao Lawrence S.Young Qian Zhong Fan Bai Mu-Sheng Zeng 2020Cell Research2020,30,11:16
4Petrogenesis and tectonic implications of Late-Triassic high εNd(t)-εHf(t) granites in the Ailaoshan tectonic zone(SW China)显示文摘High εNd(t)-εHf(t) granites are robust evidence for crustal growth. In this paper we report results of petrologic, geochronological and geochemical investigations on the Huashiban granites from the Ailaoshan tectonic zone in western Yunnan(SW China). Zircon grains separated from the two samples(10HH-119 A and 10HH-120A) yield the weighted mean 206Pb/238 U ages of 229.9 ± 2.0 Ma and 229.3 ± 2.3 Ma, respectively, interpreted as the crystallization ages of the granites. Based on our results, in combination with the existing U-Pb geochronological data for the Ailaoshan metamorphic rocks, we propose that the Ailaoshan Group might be a rock complex composed of the Mesoproterozoic, Neoproterozoic, Hercynian, Indosinian and Himalayan components, rather than a part of the crystalline basement of the Yangtze block. The zircon grains show highly depleted Lu-Hf isotope compositions, with positive εHf(t) values ranging from 8.4 to 13.1. The Huashiban granites have high SiO2(72.66 wt%–73.70 wt%), low Mg#(0.28–0.34) with A/CNK=1.01–1.05, and can be classified as peralumious high-K calc-alkaline I-type granites. A synthesis of these data indicates that the Ailaoshan tectonic zone had evolved into a post-collisional setting by the Late-Triassic(229 Ma). Genesis of the Huashiban high εNd(t)-εHf(t) granites involved into two processes:(1) underplating of the sub-arc mantle into the lower crust, and(2) remelting of the juvenile crustal materials in response to the upwelling of the asthenospheric mantle in the post-collisional setting.LIU HuiChuan WANG YueJun FAN WeiMing ZI JianWei CAI YongFeng YANG GuangLin 2014Science China Earth Sciences2014,57,9:12
5Monodisperse core-shell structured magnetic mesoporous aluminosilicate nanospheres with large dendritic mesochannels显示文摘合理设计和有一个定制的活跃核心和大、树枝状的、修改 mesoporous 的多功能的混合 nanostructures 的精确合成组织了壳能支持催化作用,精力存储,和生物应用。这里,油水双相层化涂层策略被开发了准备 monodisperse 磁性的树枝状的 mesoporous 硅石核心壳结构化的 nanospheres。这些复杂 Fe 3 O 4@SiO2@dendritic-mSiO2 nanospheres 特征大树枝状的开的毛孔(2.7 和 10.3 nm ) 。显著地,硅石壳能与未改变的孔, 14 的 Si/Al 臼齿的比率,和显著地强壮的酸的地点被变换成树枝状的 mesoporous 铝矽酸盐框架,通过一条合成以后的途径。另外,结果的磁性的树枝状的 mesoporous 铝矽酸盐 nanospheres 展览在从废水的磷酸盐移动的突出的性质和有希望的申请。Jianping Yang Dengke Shen Yong Wei Wei Li Fan Zhang Biao Kong Shaohua Zhang Wei Teng Jianwei Fan Weixian Zhang Shixue Dou Dongyuan Zhao 2015Nano Research2015,8,8:11
6Lattice-Based Double-Authentication-Preventing Ring Signature for Security and Privacy in Vehicular Ad-Hoc Networks显示文摘Amidst the rapid development of the Internet of Things (loT), Vehicular Ad-Hoc NETwork (VANET), a typical loT application, are bringing an ever-larger number of intelligent and convenient services to the daily lives of individuals. However, there remain challenges for VANETs in preserving privacy and security. In this paper, we propose the first lattice-based Double-Authentication-Preventing Ring Signature (DAPRS) and adopt it to propose a novel privacy-preserving authentication scheme for VANETs, offering the potential for security against quantum computers. The new construction is proven secure against chosen message attacks. Our scheme is more efficient than other ring signature in terms of the time cost of the message signing phase and verification phase, and also in terms of signature length. Analyses of security and efficiency demonstrate that our proposed scheme is provably secure and efficient in the application.Jinhui Liu Yong Yu Jianwei Jia Shijia Wang Peiru Fan Houzhen Wang Huanguo Zhang 2019Tsinghua Science and Technology2019,24,5:10
7Cavity engineering of two-dimensional perovskites and inherent light-matter interaction显示文摘Two-dimensional(2D)perovskites are hybrid layered materials in which the inorganic lattice of an octahedron is sandwiched by organic layers.They behave as a quantum-well structure exhibiting large exciton binding energy and high emission efficiency,which is excellent for photonic applications.Hence,the cavity modulation and cavity devices of 2D perovskites are widely investigated.In this review,we summarize the rich photophysics,synthetic methods of different cavity structures,and the cavity-based applications of 2D perovskites.We highlight the strong exciton–photon coupling and photonic lasing obtained in different cavity structures.In addition,functional optoelectronic devices using cavity structures of 2D perovskites are also reviewed.Shuai Zhang Yangguang Zhong Fan Yang Qinxuan Cao Wenna Du Jianwei Shi Xinfeng Liu 2020Photonics Research2020,8,11:7
8The impact of endplate fracture on postoperative vertebral height loss and kyphotic deformity during treatment of osteoporotic vertebral compression fractures with balloon kyphoplasty显示文摘This retrospective study investigated the impact of endplate fracture on postoperative vertebral height loss and kyphotic deformity in 144 patients with osteoporotic vertebral compression fracture(OVCF),who received balloon kyphoplasty.Patients were divided into four groups:Group 1 had no superior endplate fracture,Group 2 had fractures on the anterior portion of the superior endplate,Group 3 had fractures on the posterior portion of the superior endplate,and Group 4 had complete superior endplate fractures.Anterior and middle vertebral body height,vertebral compression ratio,vertebral height loss rate,and kyphosis Cobb angle of each patient were measured and visual analogue scale(VAS) and Oswestry disability index(ODI) scores were recorded.The anterior vertebral height and kyphosis deformity of all groups significantly improved after the surgery,whereas substantial anterior vertebral height loss and increased Cobb angle were observed in all patients at the last follow-up.Although the vertebral height loss rate and the Cobb angle in Group 2,3 and 4 were larger compared with Group 1 at the last follow-up,only the vertebral height loss rate in Group 4 and the increase in the Cobb angle in Group 2 and 4 were statistically different from those in Group 1.The VAS and ODI scores in all groups measured after the surgery and at the last follow-up were significantly lower compared with preoperative scores,but there was no significant difference among these groups.Balloon kyphoplasty significantly improved vertebral fracture height and kyphosis.Vertebral height loss and increased kyphotic deformity were observed in OVCF patients with endplate fractures after the surgery.Postoperative aggravation of kyphosis was observed in Group 2.Furthermore,severe vertebral height loss and increased kyphotic deformity were confirmed in Group 4 after the surgery.Our results suggested that postoperative vertebral height loss and aggravation of kyphosis may be associated with biomechanical changes in the vertebral body caused by endplate fracture.Therefore,surgery should not only restore compressed vertebral body height and correct kyphosis,but also correct the deformity of endplate to achieve an effective treatment of OVCF patients with endplate fracture.Qingqing Li Long Xiao Jianwei Zhang Jin Fan Wei Zhou Guoyong Yin Yongxin Ren 2016The Journal of Biomedical Research2016,30,5:5
9Plasmonic Au nanoparticles supported on both sides of Ti02 hollow spheres for maximising photocatalytic activity under visible light显示文摘A strategy of intensifying the visible light harvesting ability of anatase Ti02 hollow spheres(HSs)was developed,in which both sides of Ti02 HSs were utilised for stabilising Au nanoparticles(NPs)through the sacrificial templating method and convex surface-induced confinement.The composite structure of single Au NP yolk-Ti02 shell-Au NPs,denoted as Au@Au(Ti02,was rendered and confirmed by the transmission electron microscopy analysis.Au@Au(Ti02 showed enhanced photocatalytic activity in the degradation of methylene blue and phenol in aqueous phase under visible light surpassing that of other reference materials such as Au(Ti02 by 77%and Au@P25 by 52%,respectively,in phenol degradation.Jianwei Lu Lan Lan Xiaoteng Terence Liu Na Wang Xiaolei Fan 2019Frontiers of Chemical Science and Engineering2019,13,4:5
10Long noncoding RNA UC.98 stabilizes atherosclerotic plaques by promoting the proliferation and adhesive capacity in murine aortic endothelial cells显示文摘Pathological studies have shown that the vulnerability of plaques affects outcomes in patients with atherosclerosis(AS),a chronic inflammatory disease and common cause of morbidity and mortality worldwide.Although emerging technologies have enabled early diagnosis of AS with high-risk vulnerable plaques,more accurate and noninvasive diagnostic methods are urgently required.To this end,molecules involved in genetic or epigenetic regulation of the vulnerability of atherosclerotic plaques have been extensively studied.Here,we evaluated long noncoding RNA(IncRNA)variability by microarray assay in murine aortic endothelial cells(MAECs)bearing wulnerable plaques and identified the novel functional IncRNA UC.98,whose expression pattern was associated with the vulnerability of atherosclerotic plaques.Consisient with this,clinical statistics comparing the peripheral blood specimens from sets of patients with AS with or without vulnerable plaques confirmed the linear relationship between the expression pattern of UC.98 and plaque instabilty.Moreover,MTT assays and western blot analysis showed that silencing of intrinsic UC 98 in MAECs not only suppressed cell proliferation but also decreased the expressions of vascular cell adhesion molecule-1 and intercellular adhesion molecule-1,thereby inactivating the nuclear factorkB pathway.In conclusion,our results highlighted the pivotal role of UC.98 in regulating the vulnerability of plaques during AS progression and suggested that UC.98 may be a biomarker of the early diagnosis and prognosis of AS with vulnerable plaques and a potential therapeutic target for slowing AS progression.Zixu Fan Ying Zhang Danrui Xiao Jianwei Ma Hua Liu Linghong Shen Min Zhang Ben He 2020Acta Biochimica et Biophysica Sinica2020,52,2:3
11Enrichment factors and sweep spot evaluation of Jurassic tight oil in central Sichuan Basin,SW China显示文摘The secondary migration mechanism,enrichment factors of Jurassic tight oil in central Sichuan Basin were well investigated through physical simulation experiment of reservoir formation,casting and fluorescent thin sections,field emission scanning electron microscope(FESEM)and environment scanning electron microscope(ESEM).The results show that migration of Jurassic tight oil in central Sichuan Basin is a low-velocity non-Darcy flow through low-efficient migration path under the huge migration driving force,and has three migration and seepage stages,i.e.viscous flow stage,nonlinear seepage stage,and quasi-liner seepage stage.Microscopically,the migration pathway of tight oil is the porefracture composite conduction;macroscopically,the migration mode of tight oil is the large-scale shortedistance migration.Distribution of favorable zones of tight oil is controlled by distribution of high-quality source rocks.The hydrocarbon-generation strength of 0.4106 t/km2 can be as a threshold to determine favorable zone of tight oil in the study area.The reservoirs with high permeability and high porosity can form tight oil sweet spots,and the development degree of fractures is closely related to well with high yield of tight oil well.Zhenglian Pang Shizhen Tao Qin Zhang Tianshu Zhang Jiajing Yang Jianwei Fan Miao Yuan 2019Petroleum Research2019,4,4:3
12High-performance all-polymer solar cells enabled by a novel low bandgap non-fully conjugated polymer acceptor显示文摘The non-fully conjugated polymer as a new class of acceptor materials has shown some advantages over its small molecular counterpart when used in photoactive layers for all-polymer solar cells(all-PSCs),despite a low power conversion efficiency(PCE)caused by its narrow absorption spectra.Herein,a novel non-fully conjugated polymer acceptor PFY-2TS with a low bandgap of~1.40 eV was developed,via polymerizing a largeπ-fused small molecule acceptor(SMA)building block(namely YBO)with a non-conjugated thioalkyl linkage.Compared with its precursor YBO,PFY-2TS retains a similar low bandgap but a higher LUMO level.Moreover,compared with the structural analog of YBO-based fully conjugated polymer acceptor PFY-DTC,PFY-2TS shows a similar absorption spectrum and electron mobility,but significantly different molecular crystallinity and aggregation properties,which results in optimal blend morphology with a polymer donor PBDB-T and physical processes of the device in all-PSCs.As a result,PFY-2TS-based all-PSCs achieved a PCE of 12.31%with a small energy loss of 0.56 eV enabled by the reduced non-radiative energy loss(0.24 eV),which is better than that of 11.08%for the PFY-DTC-based ones.Our work clearly demonstrated that non-fully conjugated polymers as a new class of acceptor materials are very promising for the development of high-performance all-PSCs.Qunping Fan Ruijie Ma Tao Liu Jianwei Yu Yiqun Xiao Wenyan Su Guilong Cai Yuxiang Li Wenhong Peng Tao Guo Zhenghui Luo Huiliang Sun Lintao Hou Weiguo Zhu Xinhui Lu Feng Gao Ellen Moons Donghong Yu He Yan Ergang Wang 2021Science China Chemistry2021,64,8:3
13Safety control strategy for vertebral lamina milling task显示文摘Luping Fan Peng Gao Baoliang Zhao Yu Sun Xiaoxiao Xin Ying Hu Shoubin Liu Jianwei Zhang 2016CAAI Transactions on Intelligence Technology2016,1,3:3
14Cryptanalysis of Public Key Cryptosystems Based on Non-Abelian Factorization Problems显示文摘Advances in quantum computers threaten to break public-key cryptosystems(e.g., RSA, ECC, and EIGamal), based on the hardness of factoring or taking a discrete logarithm. However, no quantum algorithms have yet been found for solving certain mathematical problems in non-commutative algebraic structures. Recently,two novel public-key encryption schemes, BKT-B cryptosystem and BKT-FO cryptosystem, based on factorization problems have been proposed at Security and Communication Networks in 2013. In this paper we show that these two schemes are vulnerable to structural attacks and linearization equations attacks, and that they only require polynomial time complexity to obtain messages from associated public keys. We conduct a detailed analysis of the two attack methods and show corresponding algorithmic descriptions and efficiency analyses. In addition, we provide some improvement suggestions for the two public-key encryption schemes.Jinhui Liu Aiwan Fan Jianwei Jia Huanguo Zhang Houzhen Wang Shaowu Mao 2016Tsinghua Science and Technology2016,21,3:3
15Reducing energy loss via tuning energy levels of polymer acceptors for efficient all-polymer solar cells显示文摘The open-circuit voltage(Voc) of all-polymer solar cells(all-PSCs) is typically lower than 0.9 V even for the most efficient ones.Large energy loss is the main reason for limiting Voc and efficiency of all-PSCs. Herein, through materials design using electron deficient building blocks based on bithiophene imides, the lowest unoccupied molecular orbital(LUMO) energy levels of polymer acceptors can be effectively tuned, which resulted in a reduced energy loss induced by charge generation and recombination loss due to the suppressed charge-transfer(CT) state absorption. Despite a negligible driving force, all-PSC based on the polymer donor and acceptor combination with well-aligned energy levels exhibited efficient charge transfer and achieved an external quantum efficiency over 70% while maintaining a large Voc of 1.02 V, leading to a 9.21% efficiency. Through various spectroscopy approaches, this work sheds light on the mechanism of energy loss in all-PSCs, which paves an avenue to achieving efficient all-PSCs with large Voc and drives the further development of all-PSCs.Huiliang Sun Bin Liu Jianwei Yu Xianshao Zou Guangye Zhang Yujie Zhang Wei Zhang Mengyao Su Qunping Fan Kun Yang Jianhua Chen He Yan Feng Gao Xugang Guo 2020Science China Chemistry2020,63,12:2
16Performance Analysis of Wireless Network Coding via Percolation显示文摘In order to investigate the effect of network connectivity on the performance of wireless network coding, we introduce percolation theory to construct the system model of multi-hop wireless network for asymptotic connectivity. Concretely, we proposed a normalization algorithm for random network to layer the nodes of the largest connected component in multi-hop wireless network, and derived the theoretical conditions of percolation occurrence for the normalized hierarchical network of the largest connected component. Furthermore, according to the critical threshold of percolation phenomenon,we derived the performance of wireless network coding for the largest connected component. The mean delay and throughput were quantified in terms of network coding parameters such as coding window size, transmission radius, and node density. These conclusions clarify the effective performance of wireless network coding for random network, and will contribute to the evaluation of optimal performance of wireless network coding.SHANG Tao FAN Yong WANG Chao LIU Jianwei 2014Chinese Journal of Electronics2014,23,1:2
17Evaluation Methods of Profitable Tight Oil Reservoir of Lacustrine Coquina: A Case Study of Da'anzhai Member of Jurassic in the Sichuan Basin显示文摘Based on core observation,cast and fluorescent thin sections,FESEM and ESEM,coquina in Da'anzhai Member of Jurassic in Sichuan Basin were examined systematically.Together with production data and logging evaluation,a method for lacustrine coquina evaluation based on geological theory was established up.In the article,two aspects of the study were elaborated,characteristics of favorable reservoirs,and a'five-step'evaluation method for favorable coquina reservoir.According to the correlation between porosity and production data,porosity is not effective in finding high quality coquina reservoir of this area.Whereas micro research of reservoir samples from a high productivity well revealed that sparry coquina is the best lithofacies,with the most developed micro storage space of various kinds.After the favorable reservoir was sorted out,a five-step method evaluating the coquina reservoir was worked out.Correlation ofGR value and rock types suggests that GR<30 API is an effective evaluation parameter in identifying profitable reservoir lithofacies.Meanwhile,the combination of profitable reservoir rock thickness and production data revealed that the reservoirs with the highest potentiality are those with thickness of 3-18 m.Fractures are more developed in faults,folds and structural noses in the study area.Organic acid is discharged massively before the peak of hydrocarbon generation,leading to the formation of dissolution pores in the reservoir.The evaluation of organic acid was made by using the source rock indexes.After evaluating the four factors,and compiling their distribution maps,the maps were overlapped to predict favorable reservoir zones,and 7 first class and 9 second class favorable zones of coquina were picked out.PANG Zhenglian TAO Shizhen ZHANG Qin ZHANG Bin ZHANG Tianshu YANG Xiaoping WU Yinye FAN Jianwei YUAN Miao 2020Acta Geologica Sinica(English Edition)2020,94,2:2
18改良DCF方案治疗27例晚期胃癌的疗效及毒副作用观察(英文)显示文摘Objective: The aim of this study was to evaluate the efficacy and toxicity of modified docetaxel, cisplatin and calcium folinate (CF)/5-fluorouracil (mDCF) combination therapy for 27 patients with recurrent or metastatic gastric adeno- carcinoma (R/MGC). Methods: From May 2006 to July 2007, 27 R/MGC patients (18 were male and 9 were female) with a median age of 49 years (range19-66) were consecutively enrolled. The mDCF protocol included 50 mg/m2 docetaxel for 1 day and 25 mg/m2 cisplatin on d2-3, 200 mg/m2 CF on d2-3 and 2000 mg/m2 5-fluorouracil (5-FU) CIV (continous infusion) for 46 h on d2-3, repeated every 2 weeks. Results: Twenty-seven patients were evaluable for efficacy and toxicity. A median of 4.5 cycles was given. One complete and 12 partial responses were observed for an overall intent to treat response rate (RR) 48.1% [95% CI (confidence intervals): 32%-64%]. Median time-to-progression (TTP) was 6.2 months and overall survival (OS) was 11.8 months. Twenty-seven (100%) patients experienced bone marrow suppression, and of them 48.9% were Grade 3-4 (16.3% were Grade 4). Two patients (7.4%) ceased chemotherapy because of bone marrow suppression. WHO Grade 1-4 non-hematological toxicity, such as oral mucositis, nausea/emesia, peripheral neuropathy, liver dysfunction, diarrhea, nephrotoxicity and cardiotoxicity, occurred in 59.2%、51.9%, 48.1%, 44.4%, 25.9%, 18.5% and 11.1% patients, respectively, and most of them were Grade 1-2. No patient died due to chemotherapy toxicity. Conclusion: mDCF regimen is effective in treating R/MGC with a high RR and long TTP/OS in this trial. Despite its severe hematotoxicity, this regimen has some advantages such as no cross-resistance with paclitaxel (paclitaxel-resistant patients RR 2/6). These results suggested that the mDCF regimen worth further investigation in clinical study of R/MGC treatment.Yigui Chen Jianwei Yang Xiongchao Cai Wei Gao Fan Chen Hui Li 2010The Chinese-German Journal of Clinical Oncology2010,9,7:1
19Aerosol chemistry and the effect of aerosol water content on visibility impairment and radiative forcing in Guangzhou during the 2006 Pearl River Delta campaign显示文摘Jinsang Jung Hanlim Lee Young J. Kim Xingang Liu Yuanhang Zhang Jianwei Gu Shaojia Fan 2009Journal of Environmental Management2009,,11:1
20Clinicopathological Significance of E-cadherin and PCNA Expression in Hunman Non-small Cell Lung Cancer显示文摘OBJECTIVE This study was designed to assess E-cadherin (E-cad)and proliferating cell nuclear antigen(PCNA)expression as well as their clinicopathological significance in hunman non- small cell lung cancers(NSCLCs).Possible molecular mechanisms of differentiation and metastasis of NSCLCs are discussed. METHODS Immunohistochemical and immunofluorescence double staining were performed to examine the expression of E-cad and PCNA in 68 primary NSCLCs cases. RESULTS The E-cad expression in squamous cell carcinomas and adenocarcinomas showed no significant difference.E-cad expression had a positive correlation with the histological- differentiated grade.A significant difference of E-cad expression was found between metastatic and non-metastatic groups.PCNA expression in squamous cell carcinomas and adenocarcinomas showed no significant difference.The PCNA expression had a reverse correlation with the histological-differentiated grade.A significant difference of PCNA expression was found between metastatic and non-metastatic groups.The E-cad and PCNA expression presented a reverse correlation. CONCLUSION E-cad expression is not associated with the histological type of NSCLC,but is associated with differentiation and metastasis of the cancer.Down-regulation of E-cad expression affects the proliferation of cancer cells.Conjoint analysis of E-cad and PCNA expression is a good way to evaluate tumor biological behavior.Jianwei Ma Kai Fan Yanli Zhang Dawei Song Jianmei Ma 2008Chinese Journal of Clinical Oncology2008,5,2:1
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