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1Geochemistry and Zircon U-Pb Dating of Changshagou Adakite from the South Altyn UHPM Terrane: Evidence of the Partial Melting of the Lower Crust显示文摘Changshagou adakite, an outcrop in the middle segment of the South Altyn Tagh ultra-high pressure metamorphism(UHPM) terrane, contains medium-K cal-alkaline and weakly peraluminous compositions(Si O2 = 66.79% to 68.65%, Al2O3 = 17.48% to 18.31%, K2 O + Na2 O = 6.32% to 6.88%, K2O/Na2 O = 0.25 to 0.33, A/CNK = 1.01 to 1.06). This outcrop is also enriched with large ion lithophile elements but with depleted high-field strength elements(HFSE) showing clearly negative Nb, Ta, and Ti anomalies. REE distribution patterns show a positive anomaly of Eu(δEu = 1.15 to 1.31) and weakly enriched with LREE compared with HREE(LREE/HREE = 1.02 to 4.20). Experimental results and several characteristics, including relatively low Nb/Ta ratios(6.03 to 8.45) and high Sr, Sr/Y,(La/Yb)N and low Y and Yb, which indicate the presence of residual garnet and the absence of plagioclase in the source region, show that adakite may form at a pressure ranging from 1.2 GPa to 1.5 GPa and at a temperature of approximately 900°C. Low Cr, Ni, and Mg# values, trace element patterns, and Si O2–Mg# and Si O2–Mg O diagrams indicate that rocks are formed by the partial melting of a thickened lower continental crust. LA-ICP-MS in situ U-Pb dating yields two group ages: 503.1 ± 1.7 Ma(core) and 453.1 ± 3.0 Ma(rim). The Th/U ratios of the core and the rim are 0.11 to 0.40 and 0.03 to 0.07, respectively. Considering the zircon CL image characteristics, Th/U ratios, and previous studies on regional UHPM rocks, adakite formed at 503.1 ± 1.7 Ma and underwent a tectothermal event as a result of the break-off of the Altyn deep subducted continental crust at 453.1 ± 3.0 Ma.KANG Lei LIU Liang WANG Chao CAO Yuting YANG Wenqiang WANG Yawei LIAO Xiaoying 2014Acta Geologica Sinica(English Edition)2014,88,5:15
2Cloning of a gene-edited macaque monkey by somatic cell nuclear transfer显示文摘Cloning of macaque monkeys by somatic cell nucleus transfer(SCNT) allows the generation of monkeys with uniform genetic backgrounds that are useful for the development of non-human primate models of human diseases. Here, we report the feasibility of this approach by SCNT of fibroblasts from a macaque monkey(Macaca fascicularis), in which a core circadian transcription factor BMAL1 was knocked out by clustered regularly interspaced short palindromic repeat/Cas9 gene editing(see accompanying paper).Out of 325 SCNT embryos transferred into 65 surrogate monkeys, we cloned five macaque monkeys with BMAL1 mutations in both alleles without mosaicism, with nuclear genes identical to that of the fibroblast donor monkey. Further peripheral blood m RNA analysis confirmed the complete absence of the wild-type BMAL1 transcript. This study demonstrates that the SCNT approach could be used to generate cloned monkeys from fibroblasts of a young adult monkeys and paves the way for the development of macaque monkey disease models with uniform genetic backgrounds.Zhen Liu Yijun Cai Zhaodi Liao Yuting Xu Yan Wang Zhanyang Wang Xiaoyu Jiang Yuzhuo Li Yong Lu Yanhong Nie Xiaotong Zhang Chunyang Li Xinyan Bian Mu-ming Poo Hung-Chun Chang Qiang Sun 2019National Science Review2019,6,1:14
3Oncogenic AURKA-enhanced N6-methyladenosine modification increases DROSHA mRNA stability to transactivate STC1 in breast cancer stem-like cells显示文摘RNase III DROSHA is upregulated in multiple cancers and contributes to tumor progression by hitherto unclear mechanisms.Here,we demonstrate that DROSHA interacts withβ-Catenin to transactivate STC1 in an RNA cleavage-independent manner,contributing to breast cancer stem-like cell(BCSC)properties.DROSHA mRNA stability is enhanced by N6-methyladenosine(m^(6)A)modification which is activated by AURKA in BCSCs.AURKA stabilizes METTL14 by inhibiting its ubiquitylation and degradation to promote DROSHA mRNA methylation.Moreover,binding of AURKA to DROSHA transcript further strengthens the binding of the m^(6)A reader IGF2BP2 to stabilize m^(6)A-modified DROSHA.In addition,wild-type DROSHA,but not an m^(6)A methylation-deficient mutant,enhances BCSC stemness maintenance,while inhibition of DROSHA m^(6)A modification attenuates BCSC traits.Our study unveils the AURKA-induced oncogenic m^(6)A modification as a key regulator of DROSHA in breast cancer and identifies a novel DROSHA transcriptional function in promoting the BCSC phenotype.Fei Peng Jie Xu Bai Cui Qilan Liang Sai Zeng Bin He Hong Zou Manman Li Huan Zhao Yuting Meng Jin Chen Bing Liu Shasha Lv Peng Chu Fan An Zifeng Wang Junxiu Huang Yajing Zhan Yuwei Liao Jinxin Lu Lingzhi Xu Jin Zhang Zhaolin Su Zhiguang Li Fangjun Wang Eric W-FLam Quentin Liu 2021Cell Research2021,31,3:9
4Discovery of coesite in eclogite from Keqike Jianggalesayi: new evidence for ultrahigh-pressure metamorphism in South Altyn Tagh, northwestern China显示文摘Coesite is a polymorph of Si O2formed at speci?c high-pressure conditions, and its presence in some crustal rocks as relicts marks the exhumation of deep subducted material to mantle depths, thus providing robust evidence for the hypothesis on ultrahigh pressur (UHP) metamorphism [1]. The discovery of coesite and otherYongsheng Gai Liang Liu Chao Wang Wenqiang Yang Lei Kang Yuting Cao Xiaoying Liao 2017Science Bulletin2017,62,15:8
5Natural orifice transluminal endoscopic surgery in urology: The Chinese experience显示文摘Objective:To describe the Chinese experience of natural orifice transluminal endoscopic surgery(NOTES)in urology.Methods:From December 2008 to May 2017,35 animal experiments and 305 clinical surgeries of NOTES or natural orifices specimen extractions(NOSE)were performed in China.The animal experiments included five kidney biopsies,24 nephrectomies and six partial nephrectomies.The clinical surgeries included 12 transvaginal NOSE(TV-NOSE),266 hybrid transvaginal NOTES(TV-NOTES)and 27 pure TV-NOTES.The TV-NOSE procedure was performed in five transumbilical laparoendoscopic single-site(U-LESS)nephrectomies,four suprapubic-assisted laparoendoscopic single-site surgery(SA-LESS)nephroureterectomies,and three laparoscopic radical cystectomies.The hybrid TV-NOTES procedure included 210 nephrectomies,31 adrenalectomies,eight nephroureterectomies,13 partial nephrectomies,and four heminephrectomies.The pure TV-NOTES procedure included five renal cyst decortications and 22 nephrectomies.Results:A total of 29 animal experiments were successfully performed.One partial nephrectomy was converted to standard laparoscopic surgery.Two kidney biopsies and two nephrectomies were unsuccessful.A total of 297 clinical surgeries were successfully performed.Six patients who underwent hybrid TV-NOTES were converted to open surgery.Two patients who underwent pure TV-NOTES were converted to SA-LESS.There were 22 major complications,16 occurred intraoperatively and six postoperatively.The mean visual analog score(VAS)of 48 h after the operation was 2.5 points in TV-NOSE,2.3 points in hybrid TV-NOTES and 1.7 points in pure TV-NOTES.The mean follow-up of 50.6(3.0-87.0)months showed that all patients were in good condition.The umbilicus scars were nearly invisible in TV-NOSE and hybrid TV-NOTES.The vaginal incision healed well.Conclusions:TV-NOSE and TV-NOTES are feasible,safe,and effective with little injury,low pain,fast recovery,and good cosmetic outcomes in properly selected patients.They are worth consideration for urological clinical practice.Xiaofeng Zou Guoxi Zhang Tianpeng Xie Yuanhu Yuan Rihai Xiao Gengqing Wu Xiaoning Wang Hui Xu Folin Liu Yuting Wu Yunfeng Liao Quanliang Liu Yinghao Sun Bo Yang Linhui Wang Chuanliang Xu Xiaofeng Gao 2020Asian Journal of Urology2020,7,1:5
6Chemical formation and source apportionment of PM_(2.5) at an urban site at the southern foot of the Taihang mountains显示文摘The region along the Taihang Mountains in the North China Plain(NCP) is characterized by serious fine particle pollution. To clarify the formation mechanism and controlling factors, an observational study was conducted to investigate the physical and chemical properties of the fine particulate matter in Jiaozuo city, China. Mass concentrations of the water-soluble ions(WSIs) in PM_(2.5) and gaseous pollutant precursors were measured on an hourly basis from December 1, 2017, to February 27, 2018. The positive matrix factorization(PMF) method and the FLEXible PARTicle(FLEXPART) model were employed to identify the sources of PM_(2.5). The results showed that the average mass concentration of PM_(2.5) was 111 μg/m^(3) during the observation period. Among the major WSIs, sulfate, nitrate, and ammonium(SNA) constituted 62% of the total PM_(2.5) mass, and NO_(3)^(-) ranked the highest with an average contribution of 24.6%. NH_(4)^(+) was abundant in most cases in Jiaozuo. According to chemical balance analysis, SO_(2)-4, NO_(3)^(-), and Cl^(-) might be present in the form of(NH_4)_(2)SO_4, NH_4NO_3, NH_4Cl, and KCl. The liquid-phase oxidation of SO_(2) and NO_(2) was severe during the haze period. The relative humidity and pH were the key factors influencing SO_(4)^(2-) formation. We found that NO_(3)^(-) mainly stemmed from homogeneous gas-phase reactions in the daytime and originated from the hydrolysis of N_(2)O_5 in the nighttime, which was inconsistent with previous studies. The PMF model identified five sources of PM_(2.5) : secondary origin(37.8%), vehicular emissions(34.7%), biomass burning(11.5%), coal combustion(9.4%), and crustal dust(6.6%).Xiaoyong Liu Mingshi Wang Xiaole Pan Xiyue Wang Xiaolong Yue Donghui Zhang Zhigang Ma Yu Tian Hang Liu Shandong Lei Yuting Zhang Qi Liao Baozhu Ge Dawei Wang Jie Li Yele Sun Pingqing Fu Zifa Wang Hong He 2021Journal of Environmental Sciences2021,33,5:5
7Iteration convergence condition modeling for single spaceborne SAR image direct positioning显示文摘Single SAR image direct positioning is to determine the ground coordinate for each pixel in the SAR image assisted with a reference DEM.During this procedure,an iterative procedure is essentially needed to solve the uncertainty in elevation of each pixel in the SAR image.However,such an iterative procedure may suffer from the problem of divergence in shaded and serious layover areas.To investigate this problem,we performed a theoretical analysis on the convergence conditions that has not been intensively studied till now.The Range-Doppler(RD)model was simplified and then the general surface is degenerated into a planar surface.Mathematical deduction was then carried out to derive the convergence conditions and the impact factors for the convergence speed were evaluated.The theoretical findings were validated by experiments for both simulated and real scenarios.Yuting Dong Lu Zhang Mingsheng Liao 2016Geo-Spatial Information Science2016,19,4:1
8Cloud Service Security Adaptive Target Detection Algorithm Based on Bio-Inspired Performance Evaluation Process Algebra显示文摘Combining the principle of antibody concentration with the idea of biological evolution, this paper proposes an adaptive target detection algorithm for cloud service security based on Bio-Inspired Performance Evaluation Process Algebra(Bio-PEPA). The formal modelling of cloud services is formally modded by Bio-PEPA and the modules are transformed between cloud service internal structures and various components. Then, the security adaptive target detection algorithm of cloud service is divided into two processes, the short-term optimal action selection process which selects the current optimal detective action through the iterative operation of the expected function and the adaptive function, and the long-term detective strategy realized through the updates and eliminations of action planning table. The combination of the two processes reflects the self-adaptability of cloud service system to target detection. The simulating test detects three different kinds of security risks and then analyzes the relationship between the numbers of components with time in the service process. The performance of this method is compared with random detection method and three anomaly detection methods by the cloud service detection experiment. The detection time of this method is 50.1% of three kinds of detection methods and 86.3% of the random detection method. The service success rate is about 15% higher than that of random detection methods. The experimental results show that the algorithm has good time performance and high detection hit rate.ZHAO Guosheng QU Xiaofeng LIAO Yuting WANG Tiantian ZHANG Jingting 2019Wuhan University Journal of Natural Sciences2019,24,3:1
9Cross-boundary transport and source apportionment for PM_(2.5) in a typical industrial city in the Hebei Province,China:A modeling study显示文摘Cross-boundary transport of air pollution is a difficult issue in pollution control for the North China Plain.In this study,an industrial district(Shahe City)with a large glass manufactur-ing sector was investigated to clarify the relative contribution of fine particulate matter(PM_(2.5))to the city's high levels of pollution.The Nest Air Quality Prediction Model System(NAQPMS),paired with Weather Research and Forecasting(WRF),was adopted and applied with a spatial resolution of 5 km.During the study period,the mean mass concentrations of PM_(2.5),SO_(2),and NO_(2)were observed to be 132.0,76.1,and 55.5μg/m^(3),respectively.The model reproduced the variations in pollutant concentrations in Shahe at an acceptable level.The simulation of online source-tagging revealed that pollutants emitted within a 50-km radius of downtown Shahe contributed 63.4%of the city's total PM_(2.5)concentration.This contribu-tion increased to 73.9±21.2%when unfavorable meteorological conditions(high relative hu-midity,weak wind,and low planetary boundary layer height)were present;such conditions are more frequently associated with severe pollution(PM_(2.5)≥250μg/m^(3)).The contribution from Shahe was 52.3±21.6%.The source apportionment results showed that industry(47%),transportation(10%),power(17%),and residential(26%)sectors were the most important sources of PM_(2.5)in Shahe.The glass factories(where chimney stack heights were normally<70 m)in Shahe contributed 32.1%of the total PM_(2.5)concentration in Shahe.With an in-crease in PM_(2.5)concentration,the emissions from glass factories accumulated vertically and narrowed horizontally.At times when pollution levels were severe,the horizontally influ-enced area mainly covered Shahe.Furthermore,sensitivity tests indicated that reducing emissions by 20%,40%,and 60% could lead to a decrease in themass concentration of PM_(2.5) of of 12.0%,23.8%,and 35.5%,respectively.Xiaoyong Liu Xiaole Pan Jie Li Xi Chen Hang Liu Yu Tian Yuting Zhang Shandong Lei Weijie Yao Qi Liao Yele Sun Zifa Wang Hong He 2022Journal of Environmental Sciences2022,34,5:1
10Optimization of Preparation and Brewing Process of Radix Polygonum Multiflorum Preparata-Herba Taxilli Tea Bag by Orthogonal Test Combined with Comprehensive Weighted Score Analysis显示文摘[Objectives]This study aimed to optimize the preparation process of Radix Polygonum Multiflorum Preparata-Herba Taxilli tea bags.[Methods]Taking the comprehensive weighed score of total flavonoid content,soup color,aroma and taste as an indicator,the preparation process of tea bags was optimized using an orthogonal test.[Results]The results of the orthogonal test show that the optimal preparation process for the Radix Polygonum Multiflorum Preparata-Herba Taxilli tea bags are as follows:particle size of 14 meshes,solid to liquid ratio of 1∶40,brewing temperature of 70℃,and brewing time of 10 min.[Conclusions]The optimized preparation process is reasonable and feasible.It is suitable for the production of Radix Polygonum Multiflorum Preparata-Herba Taxilli tea bags.Shenggao YIN Hongzhen TANG Jinlian LI Yute ZHONG Dongyan LIAO 2019Medicinal Plant2019,10,5:1
11Alkaline activation of endogenous latent TGFβ1 by an injectable hydrogel directs cell homing for in situ complex tissue regeneration显示文摘Utilization of the body’s regenerative potential for tissue repair is known as in situ tissue regeneration.However,the use of exogenous growth factors requires delicate control of the dose and delivery strategies and may be accompanied by safety,efficacy and cost concerns.In this study,we developed,for the first time,a biomaterial-based strategy to activate endogenous transforming growth factor beta 1(TGFβ1)under alkaline conditions for effective in situ tissue regeneration.We demonstrated that alkaline-activated TGFβ1 from blood serum,bone marrow fluids and soaking solutions of meniscus and tooth dentin was capable of increasing cell recruitment and early differentiation,implying its broad practicability.Furthermore,we engineered an injectable hydrogel(MS-Gel)consisting of gelatin microspheres for loading strong alkaline substances and a modified gelatin matrix for hydrogel click crosslinking.In vitro models showed that alkaline MS-Gel controllably and sustainably activated endogenous TGFβ1 from tooth dentin for robust bone marrow stem cell migration.More importantly,infusion of in vivo porcine prepared root canals with alkaline MS-Gel promoted significant pulp-dentin regeneration with neurovascular stroma and mineralized tissue by endogenous proliferative cells.Therefore,this work offers a new bench-to-beside translation strategy using biomaterial-activated endogenous biomolecules to achieve in situ tissue regeneration without the need for cell or protein delivery.Sainan Wang Yuting Niu Peipei Jia Zheting Liao Weimin Guo Rodrigo Cotrim Chaves Khanh-Hoa Tran-Ba Ling He Hanying Bai Sam Sia Laura J.Kaufman Xiaoyan Wang Yongsheng Zhou Yanmei Dong Jeremy J.Mao 2022Bioactive Materials2022,7,9:1
12Refractory black carbon aerosols in rainwater in the summer of 2019 in Beijing:Mass concentration,size distribution and wet scavenging ratio显示文摘Black carbon(BC)aerosols in the atmosphere play a significant role in climate systems due to their strong ability to absorb solar radiation.The lifetime of BC depends on atmospheric transport,aging and consequently on wet scavenging processes(in-cloud and below-cloud scavenging).In this study,sequential rainwater samples in eight rainfall events collected in 2 mm interval were measured by a tandem system including a single particle soot photometer(SP2)and a nebulizer.The results showed that the volume-weighted average(VWA)mass concentrations of refractory black carbon(rBC)in each rainfall event varied,ranging from 10.8 to 78.9μg/L.The highest rBC concentrations in the rainwater samples typically occurred in the first fraction from individual rainfall events.The geometric mean median mass-equivalent diameter(MMD)decreased under precipitation,indicating that rBC with larger sizes was relatively aged and preferentially removed by wet scavenging.A positive correlation(R2=0.73)between the VWA mass concentrations of rBC in rainwater and that in ambient air suggested the important contribution of scavenging process.Additionally,the contributions of in-cloud and below-cloud scavenging were distinguished and accounted for 74%and 26%to wet scavenging,respectively.The scavenging ratio of rBC particles was estimated to be 0.06 on average.This study provides helpful information for better understanding the mechanism of rBC wet scavenging and reducing the uncertainty of numerical simulations of the climate effects of rBC.Shandong Lei Baozhu Ge Hang Liu Jiannong Quan Danhui Xu Yuting Zhang Weijie Yao Lu Lei Yu Tian Qi Liao Xiaoyong Liu Jie Li Jinyuan Xin Yele Sun Pingqing Fu Junji Cao Zifa Wang Xiaole Pan 2023Journal of Environmental Sciences2023,,10:0
13Neglected interstitial space in malaria recurrence and treatment显示文摘The interstitial space, a widespread fluid-filled compartment throughout the body, is related to many pathophysiological alterations and diseases, attracting increasing attention. The vital role of interstitial space in malaria infection and treatment has been neglected current research efforts. We confirmed the reinfection capacity of parasites sequestrated in interstitial space, which replenish the mechanism of recurrence. Malaria parasite-infected mice were treated with artemisinin-loaded liposomes through the interstitial space and exhibited a better therapeutic response. Notably, compared with oral administration, interstitial administration showed an unexpectedly high activation and recruitment of immune cells, and resulted in better clearance of sequestered parasites from organs, and enhanced pathological recovery. The interstitial route of administration prolongs the blood circulation time of artemisinin and increases its plasma concentration, and may compensate for the inefficiency of oral administration and the nanotoxicity of intravenous administration, providing a potential strategy for infectious disease therapy.Qiang Zhang Zhuo Ao Nan Hu Yuting Zhu Fulong Liao Dong Han 2020Nano Research2020,13,10:0
14Heptamethine cyanines in bioorthogonal chemistry显示文摘Due to their excellent fluorescence properties and biological function,cyanine dyes have been widely applied in biological imaging.Heptamethine cyanine(Cy7)dyes,as a type of classic near-infrared(NIR)fluorescent dyes,are considered as one of the effective fluorescent tools in the living organisms due to their good biocompatibility and very low background interference.Bioorthogonal reactions performed in living cells and tissues have developed by leaps and bounds in recent years.The NIR fluorescent labeling technique involving cyanine has attracted widespread attention.This review summarizes their recent application in the field of bioorthogonal imaging,mainly concluding Cy7-type dyes,labeling strategy,bioimaging application,etc.We expect this work can provide some helps for the studies of NIR bioorthogonal reaction in vivo.Yuanyuan Liao Yuting Liang Yurou Huang Xiaoyan Zeng Tian He Jun Yin 2024Chinese Chemical Letters2024,35,2:0
15Magnesium-L-threonate treats Alzheimer's disease by modulating the microbiota-gut-brain axis显示文摘Disturbances in the microbiota-gut-brain axis may contribute to the development of Alzheimer's disease. Magnesium-L-threonate has recently been found to have protective effects on learning and memory in aged and Alzheimer's disease model mice. However, the effects of magnesium-L-threonate on the gut microbiota in Alzheimer's disease remain unknown. Previously, we reported that magnesium-L-threonate treatment improved cognition and reduced oxidative stress and inflammation in a double-transgenic line of Alzheimer's disease model mice expressing the amyloid-β precursor protein and mutant human presenilin 1(APP/PS1). Here, we performed 16S r RNA amplicon sequencing and liquid chromatography-mass spectrometry to analyze changes in the microbiome and serum metabolome following magnesium-Lthreonate exposure in a similar mouse model. Magnesium-L-threonate modulated the abundance of three genera in the gut microbiota, decreasing Allobaculum and increasing Bifidobacterium and Turicibacter. We also found that differential metabolites in the magnesiumL-threonate-regulated serum were enriched in various pathways associated with neurodegenerative diseases. The western blotting detection on intestinal tight junction proteins(zona occludens 1, occludin, and claudin-5) showed that magnesium-L-threonate repaired the intestinal barrier dysfunction of APP/PS1 mice. These findings suggest that magnesium-L-threonate may reduce the clinical manifestations of Alzheimer's disease through the microbiota-gut-brain axis in model mice, providing an experimental basis for the clinical treatment of Alzheimer's disease.Wang Liao Jiana Wei Chongxu Liu Haoyu Luo Yuting Ruan Yingren Mai Qun Yu Zhiyu Cao Jiaxin Xu Dong Zheng Zonghai Sheng Xianju Zhou Jun Liu 2024Neural Regeneration Research2024,19,10:0
16Spatiotemporally-regulated multienzymatic polymerization endows hydrogel continuous gradient and spontaneous actuation显示文摘There are several natural materials which have evolved functional gradients,ingeniously attaining maximal efficacy from limited components.Herein,we utilized the spatiotemporal distribution of initiator acetylacetone to regulate the multienzyme polymerization and fabricate a chitosan-polymer hydrogel.The temporal priority order of acetylacetone was higher than phenolmodified chitosan by density functional theory calculation.The acetylacetone within the gelatin could gradually diffuse spatially into the chitosan hydrogel to fabricate the composite hydrogel with gradient network structure.The gradient hydrogel possessed a transferring topography from the two-dimensional pattern.A continuously decreased modulus along with acetylacetone diffusion was confirmed by atomic force microscope-based force mapping experiment.The water-retaining ability of various regions was confirmed by low-field nuclear magnetic resonance(NMR)and thermogravimetric analysis(TG)analysis,which led to the spontaneous actuation of gradient hydrogel with maximum 1821°/h curling speed and 227°curling angle.Consequently,the promising gradient hydrogels could be applied as intelligent actuators and flexible robots.Saiji Shen Chu Wu Yinghui Shang Hongdou Shen Yue Liao Yuting Guo Min Hu Xia Wang Gang Li Qigang Wang 2022Science China Chemistry2022,65,1:0
17The metabolic switch of cancer From the 2016 Sino-US Symposium on Cancer Metabolism, Chongqing, P.R. China, October 10e11, 2016显示文摘Although remarkable progress has been made in oncology research,cancer is still a leading cause of death worldwide.It is well recognized that cancer is a genetic disease,yet metabolic alterations or reprogramming are the major phenotypes associated with the(epi-)genetic modifications of cancer cells.Thus,understanding the metabolic changes of tumor cells will facilitate the diagnosis of cancer,alleviate drug resistance and provide novel druggable targets that can lead to cures for cancer.The first Sino-US Symposium on Cancer Metabolism was held in Chongqing on October 10th and 11th,with the theme of“cancer metabolism and precision cancer therapy”.The symposium brought about a dozen keynote speakers each from the US and China's Mainland,as well as one hundred delegates with an interest in cancer metabolism.This short article will briefly summarize the advances reported during this meeting.Yuting Ma Xuemei Tong Yong Liao 2017Genes & Diseases2017,4,1:0
18Dynamic trust evaluation model for task participants oriented to mobile crowd sensing显示文摘In the mobile crowd sensing(MCS)network environment,it is very important to establish an evolutionary process that can dynamically depict the trust degree of task participants.To address this issue,this paper proposes a dynamic trust evaluation model for task participants.Firstly,according to the security requirements and trust strategy of the perceived tasks,the attribute reduction algorithm(ARA)based on rough set is used to obtain the multi-attribute indexes that affect the participants’trust information.Removing the redundant attributes can avoid the lag of trust evaluation and reduce the time cost.Secondly,the grey correlation analysis method is used to solve the correlation degree between the target sequence and the comparison sequence on the trust attributes by integrating the multi-attribute decision-making method,which avoids the distortion of the trust evaluation caused by human subjective factors and improves the quality of the perceived data.Finally,a dynamic trust evaluation model for participants in complex sensing network environment is established.The simulation results show that the proposed model can not only dynamically depict the trust degree of participants in real time,but also have higher accuracy and less time cost.Zhao Guosheng Liao Yuting Wang Jian 2020The Journal of China Universities of Posts and Telecommunications2020,27,2:0
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