维普中文期刊产品整合服务
46篇 您的检索式:作者名="Yawei Wei"
    题名 作者 年代 出处 被引量
1Land Use Effects on Soil Organic Carbon, Microbial Biomass and Microbial Activity in Changbai Mountains of Northeast China显示文摘Land use changes are known to alter soil organic carbon(SOC) and microbial properties, however, information about how conversion of natural forest to agricultural land use as well as plantations affects SOC and microbial properties in the Changbai Mountains of Northeast China is meager. Soil carbon content, microbial biomass carbon(MBC), basal respiration and soil carbon mineralization were studied in five selected types of land use: natural old-growth broad-leaved Korean pine mixed forest(NF); spruce plantation(SP) established following clear-cutting of NF; cropland(CL); ginseng farmland(GF) previously under NF; and a five-year Mongolian oak young forest(YF) reforested on an abandoned GF, in the Changbai Mountains of Northeast China in 2011. Results showed that SOC content was significantly lower in SP, CL, GF, and YF than in NF. MBC ranged from 304.4 mg/kg in CL to 1350.3 mg/kg in NF, which was significantly higher in the soil of NF than any soil of the other four land use types. The SOC and MBC contents were higher in SP soil than in CL, GF, and YF soils, yielding a significant difference between SP and CL. The value of basal respiration was also higher in NF than in SP, CL, GF, and YF. Simultaneously, higher values of the metabolic quotient were detected in CL, GF, and YF soils, indicating low substrate utilization of the soil microbial community compared with that in NF and SP soil. The values of cumulative mineralized carbon and potentially mineralized carbon(C0) in NF were significantly higher than those in CL and GF, while no significant difference was observed between NF and SP. In addition, YF had higher values of C0 and C mineralization rate compared with GF. The results indicate that conversion from NF into agricultural land(CL and GF) uses and plantation may lead to a reduction in soil nutrients(SOC and MBC) and substrate utilization efficiency of the microbial community. By contrast, soils below SP were more conducive to the preservation of soil organic matter, which was reflected in the comparison of microbial indicators among CL, GF, and YF land uses. This study can provide data for evaluating soils nutrients under different land use types, and serve as references for the rational land use of natural forest in the study area.FANG Xiangmin WANG Qingli ZHOU Wangming ZHAO Wei WEI Yawei NIU Lijun DAI Limin 2014Chinese Geographical Science2014,24,3:16
2Optimization of H_2O_2 dosage in microwave-H_2O_2 process for sludge pretreatment with uniform design method显示文摘A microwave-H2O2 process for sludge pretreatment exhibited high efficiencies of releasing organics,nitrogen,and phosphorus,but large quantities of H2O2 residues were detected.A uniform design method was thus employed in this study to further optimize H2O2 dosage by investigating effects of pH and H2O2 dosage on the amount of H2O2 residue and releases of organics,nitrogen,and phosphorus.A regression model was established with pH and H2O2 dosage as the independent variables,and H2O2 residue and releases of organics,nitrogen,and phosphorus as the dependent variables.In the optimized microwave-H2O2 process,the pH value of the sludge was firstly adjusted to 11.0,then the sludge was heated to 80°C and H2O2 was dosed at a H2O2:mixed liquor suspended solids(MLSS)ratio of 0.2,and the sludge was finally heated to 100°C by microwave irradiation.Compared to the microwave-H2O2 process without optimization,the H2O2 dosage and the utilization rate of H2O2 in the optimized microwave-H2O2 process were reduced by 80% and greatly improved by 3.87 times,respectively,when the H2O2:MLSS dosage ratio was decreased from 1.0 to 0.2,resulting in nearly the same release rate of soluble chemical oxygen demand in the microwave-H2O2 process without optimization at H2O2:MLSS ratio of 0.5.Qingcong Xiao Hong Yan Yuansong Wei Yawei Wang Fangang Zeng Xiang Zheng 2012Journal of Environmental Sciences2012,24,12:12
3Biomass Carbon Storage and Its Sequestration Potential of Afforestation under Natural Forest Protection Program in China显示文摘Based on the data from China′s Seventh Forest Inventory for the period of 2004–2008, area and stand volume of different types and age-classes of plantation were used to establish the relationship between biomass density and age of planted forests in different regions of the country. Combined with the plantation area in the first-stage of the Natural Forest Protection(NFP) program(1998–2010), this study calculated the biomass carbon storage of the afforestation in the first-stage of the program. On this basis, the carbon sequestration potential of these forests was estimated for the second stage of the program(2011–2020). Biomass carbon storage of plantation established in the first stage of the program was 33.67 Tg C, which was majority accounted by protection forests(30.26 Tg C). There was a significant difference among carbon storage in different regions, which depended on the relationship of biomass carbon density, forest age and plantation area. Under the natural growth, the carbon storage was forecasted to increase annually from 2011 to 2020, reaching 96.03 Tg C at the end of the second-stage of the program in 2020. The annual growth of the carbon storage was forecasted to be 6.24 Tg C/yr, which suggested that NFP program has a significant potential for enhancing carbon sequestration in plantation forests under its domain.ZHOU Wangming Bernard Joseph LEWIS WU Shengnan YU Dapao ZHOU Li WEI Yawei DAI Limin 2014Chinese Geographical Science2014,24,4:10
4Forest Carbon Storage and Tree Carbon Pool Dynamics under Natural Forest Protection Program in Northeastern China显示文摘The Natural Forest Protection(NFP) program is one of the Six Key Forestry Projects which were adopted by the Chinese Government since the 1980s to address important natural issues in China. It advanced to protecting and restoring the structures and functions of the natural forests through sustainable forest management. However, the role of forest carbon storage and tree carbon pool dynamics since the adoption of the NFP remains unknown. To address this knowledge gap, this study calculated forest carbon storage(tree, understory, forest floor and soil) in the forest region of northeastern(NE) China based on National Forest Inventory databases and field investigated databases. For tree biomass, this study utilized an improved method for biomass estimation that converts timber volume to total forest biomass; while for understory, forest floor and soil carbon storage, this study utilized forest type-specific mean carbon densities multiplied by their areas in the region. Results showed that the tree carbon pool under the NFP in NE China functioned as a carbon sink from 1998 to 2008, with an increase of 6.3 Tg C/yr, which was mainly sequestrated by natural forests(5.1 Tg C/yr). At the same time, plantations also acted as a carbon sink, reflecting an increase of 1.2 Tg C/yr. In 2008, total carbon storage in forests covered by the NFP in NE China was 4603.8 Tg C, of which 4393.3 Tg C was stored in natural forests and 210.5 Tg C in planted forests. Soil was the largest carbon storage component, contributing 69.5%–77.8% of total carbon storage; followed by tree and forest floor, accounting for 16.3%–23.0% and 5.0%–6.5% of total carbon storage, respectively. Understory carbon pool ranged from 1.9 to 42.7 Tg C, accounting for only 0.9% of total carbon storage.WEI Yawei YU Dapao Bernard Joseph LEWIS ZHOU Li ZHOU Wangming FANG Xiangmin ZHAO Wei WU Shengnan DAI Limin 2014Chinese Geographical Science2014,24,4:9
5Sustainable Practice in Pavement Engineering through Value-Added Collective Recycling of Waste Plastic and Waste Tyre Rubber显示文摘Waste plastics,such as waste polyethylene terephthalate(PET)beverage bottles and waste rubber tyres are major municipal solid wastes,which may lead to various environmental problems if they are not appropriately recycled.In this study,the feasibility of collectively recycling the two types of waste into performance-increasing modifiers for asphalt pavements was analyzed.This study aimed to investigate the recycling mechanisms of waste PET-derived additives under the treatment of two amines,triethylenetetramine(TETA)and ethanolamine(EA),and characterize the performances of these additives in modifying rubberized bitumen,a bitumen modified by waste tyre rubber.To this end,infrared spectroscopy and thermal analyses were carried out on the two PET-derived additives(PET–TETA and PET–EA).In addition,infrared spectroscopy,viscosity,dynamic shear rheology,and multiple stress creep recovery tests were performed on the rubberized bitumen samples modified by the two PET-derived additives.We concluded that waste PET can be chemically upcycled into functional additives,which can increase the overall performance of the rubberized bitumen.The recycling method developed in this study not only helps alleviate the landfilling problems of both waste PET plastic and scrap tyres,but also turns these wastes into value-added new materials for building durable pavements.Xiong Xu Zhen Leng Jingting Lan Wei Wang Jiangmiao Yu Yawei Bai Anand Sreeram Jing Hu 2021Engineering2021,7,6:7
6Processes of coastal ecosystem carbon sequestration and approaches for increasing carbon sink显示文摘The oceans are the largest carbon pools on Earth, and play the role of a 'buffer' in climate change. Blue carbon, the carbon(mainly organic carbon) captured by marine ecosystems, is one of the important mechanisms of marine carbon storage.Blue carbon was initially recognized only in the form of visible coastal plant carbon sequestration. In fact, microorganisms(phytoplankton, bacteria, archaea, viruses, and protozoa), which did not receive much attention in the past, account for more than 90% of the total marine biomass and are the main contributors to blue carbon. Chinese coastal seas, equivalent to 1/3 of China's total land area, have a huge carbon sink potential needing urgently research and development. In this paper, we focus on the processes and mechanisms of coastal ocean's carbon sequestration and the approaches for increasing that sequestration. We discuss the structures of coastal ecosystems, the processes of carbon cycle, and the mechanisms of carbon sequestration. Using the evolution of coastal ocean's carbon sinks in sedimentary records over geologic times, we also discuss the possible effects of natural processes and anthropogenic activities on marine carbon sinks. Finally, we discuss the prospect of using carbon sequestration engineering for increasing coastal ocean's carbon storage capacity.ZHANG Yao ZHAO MeiXun CUI Qiu FAN Wei QI JiaGuo CHEN Ying ZHANG YongYu GAO KunShan FAN JingFeng WANG GuangYi YAN ChongLing LU HaoLiang LUO YaWei ZHANG ZiLian ZHENG Qiang XIAO Wei JIAO NianZhi 2017Science China Earth Sciences2017,60,5:6
7Influence of carbon sources on nutrient removal in A2/O-MBRs: Availability assessment of internal carbon source显示文摘Both internal carbon source and some external carbon sources were used to improve the nutrient removal in Anaerobic-Anoxic-Oxic-Membrane Bioreactor(A^2/O-MBRs), and their technical and cost analysis was investigated. The experimental results showed that the nutrient removals were improved by all the carbon source additions. The total nitrogen and phosphorus removal efficiency were higher in the experiments with external carbon source additions than that with internal carbon source addition. It was found that pathways of nitrogen and phosphorus transform were different dependent on different carbon source additions by the mass balance analysis. With external carbon source addition, the simultaneous nitrification and denitrification occurred in aerobic zone, and the P-uptake in aerobic phase was evident. Therefore, with addition of C-MHP(internal carbon source produced from sludge pretreatment by microwave-H_2O_2 process), the denitrification and phosphorus-uptake in anoxic zone was notable. Cost analysis showed that the unit nitrogen removal costs were 57.13 CNY/kgN of C-acetate addition and 54.48 CNY/kgN of C-MHP addition, respectively. The results indicated that the C-MHP has a good technical and economic feasibility to substitute external carbon sources partially for nutrient removal.Rongle Xu Yaobo Fan Yuansong Wei Yawei Wang Nan Luo Min Yang Xing Yuan Rong Yu 2016Journal of Environmental Sciences2016,28,10:6
8Effects of chlortetracycline,Cu and their combination on the performance and microbial community dynamics in swine manure anaerobic digestion显示文摘Swine manure was typical for the combined pollution of heavy metals and antibiotics. The effects of widely used veterinary antibiotic chlortetracycline(CTC), Cu and their combination on swine manure anaerobic digestion performance and microbial community have never been investigated. Thus, four 2 L anaerobic digestion reactors were established including reactor A(control), B(CTC spiked by 0.5 g/kg dry weight, dw), C(Cu spiked by 5 g/kg dw) and D(combination of CTC, 0.5 g/kg dw, and Cu, 5 g/kg dw), and dynamics of bacterial and archaeal community structure was investigated using high throughput sequencing method. Results showed that addition of CTC and Cu separately could increase the total biogas production by21.6% and 15.8%, respectively, while combination of CTC and Cu severely inhibited anaerobic digestion(by 30.3%). Furthermore, corresponding to different stages and reactors, four kinds of microbes including bacteria and archaea were described in detail, and the effects of CTC, Cu and their combination mainly occurred at hydrolysis and acidification phases. The addition of Cu alone changed the dynamics of archaeal community significantly. It was genus Methanomassiliicoccus that dominated at the active methane production for A, B and D, while it was genus Methanobrevibacter and Methanoculleus for C.Rui Wang Junya Zhang Jibao Liu Dawei Yu Hui Zhong Yawei Wang Meixue Chen Juan Tong Yuansong Wei 2018Journal of Environmental Sciences2018,30,5:5
9Effect of organic matter on phosphorus recovery from sewage sludge subjected to microwave hybrid pretreatment显示文摘Microwave(MW) hybrid processes are able to disrupt the flocculent structure of complex waste activated sludge,and help promote the recovery of phosphorus as struvite.In this study,to optimize struvite yield,(1) the characteristics of matter released in MW-hybrid treatments were compared,including MW,MW-acid,MW-alkali,MW-H_2O_2,and MW-H_2O_2- alkali.The results showed that selective release of carbon,nitrogen,phosphorus,Ca^(2+),and Mg^(2+) achieved by sludge pretreatment using MW-hybrid processes.MW-H_2O_2 is the recommended sludge pretreatment process for phosphorus recovery in the form of struvite.The ratio of Mg^(2+):NH_4^+-N:PO_4^(3-)-P was 1.2:2.9:1 in the supernatant.(2) To clarify the effects of organic matter on struvite recovery,the composition and molecular weight distribution of organic matters were analyzed.Low molecular weight COD was found to facilitate the removal rate of NH_4^+-N and PO_4^(3-)P via crystallization,and the amorphous struvite crystals(<1 kDa) from the filtered solutions had high purity.Therefore,the present study reveals the necessity of taking into consideration the interference effect of high molecular weight organic matters during struvite crystallization from sewage sludge.Yawei Wang Qingcong Xiao Hui Zhong Xiang Zheng Yuansong Wei 2016Journal of Environmental Sciences2016,28,1:4
10Development of matrix solid-phase dispersion method for the extraction of short-chain chlorinated paraffins in human placenta显示文摘Chlorinated paraffins(SCCPs) are widely used worldwide, and they can be released into the environment during their production, transport, usage and disposal, which pose potential risks for human health. In this work, an efficient, reliable and rapid pretreatment method based on matrix solid-phase dispersion(MSPD) was developed for the analysis of short-chain CPs(SCCPs) in human placenta by gas chromatograph-electron capture negative ion low-resolution mass spectrometry(GC-ECNI-LRMS) and gas chromatography–quadrupole time-of-flight mass spectrometry(GC–QTOF-HRMS). The MSPD-relevant parameters including dispersing sorbent,sample-to-sorbent mass ratio, and elution solvent were optimized using the orthogonal test.Silica gel was found to be the optimal dispersing sorbent among the selected matrices. Under the optimal conditions, 44% acidic silica gel can be used as the co-sorbent to remove lipid and eluted by the mixture of hexane and dichloromethane(7:3, V/V). The spiked recoveries of the optimized method were 77.4% and 91.4% for analyzing SCCPs in human placenta by GC-ECNI-LRMS and GC–QTOF-HRMS, and the corresponding relative standard deviations were10.2% and 5.6%, respectively. The method detection limit for the total SCCPs was 36.8 ng/g(dry weight, dw) and 19.2 ng/g(dw) as measured by GC-ECNI-LRMS and GC–QTOF-HRMS,respectively. The concentrations of SCCPs in four human placentas were in the range ofYing Wang Wei Gao Jing Wu Huijin Liu Yingjun Wang Yawei Wang Guibin Jiang 2017Journal of Environmental Sciences2017,29,12:4
11Promoted conversion of polysulfides by MoO_2 inlaid ordered mesoporous carbons towards high performance lithium-sulfur batteries显示文摘As polar materials, transition-metal oxides have shown great potentials to improve the adsorption of lithium polysulfides in lithium-sulfur batteries. Herein, a MoO_2-ordered mesoporous carbon (M-OMC)hybrid was designed as the sulfur host, in which MoO_2 is inlaid on the surface of ordered mesoporous carbons that can store active materials and provide fast electron transfer channel due to its ordered pore structure. The MoO_2 can effectively prevent the migration of polysulfides through the chemical adsorption and promote the conversion of polysulfides towards Li-sulfur battery.Yawei Chen Shuzhang Niu Wei Lv Chen Zhang Quanhong Yang 2019Chinese Chemical Letters2019,30,2:4
12Effects of management regimes on carbon sequestration under the Natural Forest Protection Program in northeast China显示文摘Carbon sinks constitute an important element within the complex phenomenon of global climate change,and forest ecosystems are important global carbon sinks.The Natural Forest Protection Program(NFPP) is an ecological program in China that was established after catastrophic flooding in the country in 1998.The goals of the NFPP are to curb the deterioration of the ecological environment,strengthen the protection and restoration of habitat to increase biodiversity,and rehabilitate natural forests to support sustainable development in forest regions.This study looked at changes in carbon sequestration in a forested area of northeast China after the inception of the NFPP.The program divides China's natural forests into three classes—commercial and two types of noneconomic forests—that are subject to management regimes prescribing varying levels of timber harvest,afforestation,and reforestation.During the 18-year period from 1998 to 2015,the total amount of carbon sequestration increased at an average annual rate of 0.04 MT C.This trend reflects a transformation of forest management practices after implementation of the NFPP that resulted in prohibited and/or restricted logging and tighter regulation of allowable harvest levels for specific areas.In documenting this trend,guidelines for more effective implementation of forestry programs such as the NFPP in other countries in the future are also suggested.Linhai Jiang Wei Zhao Bernard J.Lewis Yawei Wei Limin Dai 2018Journal of Forestry Research2018,29,5:3
13Exosomes Released from Rabies Virus-Infected Cells May be Involved in the Infection Process显示文摘Exosomes are cell-derived vesicles that are secreted by many eukaryotic cells. It has recently attracted attention as vehicles of intercellular communication. Virus-infected cells release exosomes, which contain viral proteins, RNA, and pathogenic molecules. However, the role of exosomes in virus infection process remains unclear and needs to be further investigated.In this study, we aimed to evaluate the effects of exosomes on rabies virus infection. OptiPrep^(TM) density gradient centrifugation was used to isolate exosomes from rabies virus-infected cell culture supernatants. A rabies virus G protein enzyme-linked immunosorbent assay and acetylcholinesterase activity assays were performed to verify the centrifugation fractions. Exosomes were then characterized using transmission electron microscopy and Western blotting. Our results showed that rabies virus infection increased the release of exosomes. Treatment with GW4869 and si-Rab27 a, two exosomal secretion inhibitors, inhibited exosome release. Furthermore, the inhibitors reduced the levels of extracellular and intracellular viral RNA. These data indicated that exosomes may participate in the viral infection process. Moreover, our results establish a basis for future research into the roles of exosomes in rabies virus infection and as potential targets for developing new antiviral strategies.Jingyu Wang Fan Wu Chuntian Liu Wenwen Dai Yawei Teng Weiheng Su Wei Kong Feng Gao Linjun Cai Ali Hou Chunlai Jiang 2019Virologica Sinica2019,34,1:3
14Ultralight and ordered lamellar polyimide-based graphene foams with efficient broadband electromagnetic absorption显示文摘The development of high-performance microwave absorption materials with strong absorption capacity and broad bandwidth is highly desirable in the field of electromagnetic pollution protection.Herein,ultralight polyimide-based graphene foam with ordered lamellar structure is precisely designed and controllably constructed by bidirectional freezing process.More lamellar interfaces formed inside the foam per unit volume effectively facilitate the layer-by-layer dissipation for the vertical incident electromagnetic waves,thereby endowing the foam with efficient broadband electromagnetic absorption performance.More importantly,electromagnetic absorption performance can be controllably adjusted by optimizing impedance distribution and microstructure of skeletons.As a result,the optimized foam with an ultralow density of 9.10 mg/cm^(3)presents a minimum reflection loss value of-61.29 dB at 9.25 GHz and an effective absorption bandwidth of 5.51 GHz(7.06-12.57 GHz,covering the whole X band) when the thickness is 4.75 mm.Yawei Zhang Shuangshuang Li Xinwei Tang Wei Fan Qianqian Lan Le Li Piming Ma Weifu Dong Zicheng Wang Tianxi Liu 2022Journal of Materials Science & Technology2022,,7:3
15Identification of novel Lynch syndrome mutations in Chinese patients with endometriod endometrial cancer显示文摘Objective:Lynch syndrome(LS)predisposes patients to early onset endometrioid endometrial cancer(EEC).However,little is known about LS-related EEC in the Chinese population.The aim of this study was to investigate the prevalence of LS and to identify the specific variants of LS in Chinese patients with EEC.Methods:We applied universal immunohistochemistry screening to detect the expression of mismatch repair(MMR)proteins,which was followed by MLH1 methylation analysis to identify suspected LS cases,next-generation sequencing(NGS)to confirm LS,and microsatellite instability(MSI)analysis to verify LS.Results:We collected 211 samples with EEC.Twenty-seven(27/211,12.8%)EEC cases had a loss of MMR protein expression.After MLH1 methylation analysis,16 EEC cases were suggested to be associated with LS.Finally,through NGS and MSI analysis,we determined that 10 EEC(10/209,4.78%)cases were associated with LS.Among those cases,3 unreported mutations(1 frameshift and 2 nonsense)were identified.M SH6 c.597_597delC,found in 4 patients,is likely to be a founder mutation in China.Conclusions:We demonstrated the feasibility of a process for LS screening in Chinese patients with EEC,by using universal immunohistochemistry screening followed by MLH1 methylation analysis and confirmation through NGS and MSI analysis.The novel mutations identified in this study expand knowledge of LS.Caixia Ren Yan Liu Yuxiang Wang Yan Tang Yawei Wei Congrong Liu Hongquan Zhang 2020Cancer Biology & Medicine2020,17,2:3
16Rare-earth based materials:an effective toolbox for brain imaging,therapy,monitoring and neuromodulation显示文摘Brain diseases, including tumors and neurodegenerative disorders, are among the most serious health problems. Non-invasively high-resolution imaging methods are required to gain anatomical structures and information of the brain. In addition, efficient diagnosis technology is also needed to treat brain disease. Rare-earth based materials possess unique optical properties, superior magnetism, and high X-ray absorption abilities, enabling high-resolution imaging of the brain through magnetic resonance imaging, computed tomography imaging, and fluorescence imaging technologies. In addition, rare-earth based materials can be used to detect, treat, and regulate of brain diseases through fine modulation of their structures and functions. Importantly, rare-earth based materials coupled with biomolecules such as antibodies, peptides, and drugs can overcome the blood-brain barrier and be used for targeted treatment. Herein, this review highlights the rational design and application of rare-earth based materials in brain imaging, therapy, monitoring, and neuromodulation. Furthermore, the development prospect of rare-earth based materials is briefly introduced.Zheng Wei Yawei Liu Bo Li Jingjing Li Shuang Lu Xiwen Xing Kai Liu Fan Wang Hongjie Zhang 2022Light(Science & Applications)2022,11,8:3
17Long Noncoding RNA MALAT-1 is a New Potential Therapeutic Target for Castration-Resistant Prostate Cancer显示文摘Shancheng Ren Yawei Liu Weidong Xu Yi Sun Ji Lu Fubo Wang Min Wei Jian Shen Jianguo Hou Xu Gao Chuanliang Xu Jiaoti Huang Yi Zhao Yinghao Sun 2013The Journal of Urology2013,,:2
18DEM SIMULATION OF LIQUEFACTION FOR GRANULAR MEDIA UNDER UNDRAINED AXISYMMETRIC COMPRESSION AND PLANE STRAIN CONDITIONS显示文摘Based on three dimensional (3D) Discrete Element Method (DEM), the paper presents simulation results of undrained tests on loose assemblies of polydisperse spheres under axisymmetric compression and plane strain conditions using a periodic cell. In the present work, undrained tests were modelled by deforming the samples under constant volume conditions. The undrained (effective) stress paths are shown to be qualitatively similar to experimental results in literature. A microscopic parameter in terms of redundancy factor (RF) is used to identify the onset of liquefaction (or temporary liquefaction), with the condition of RF equal to unity defining the transition from 'solid-like' to 'liquid-like' behaviour. It is found that the undrained behaviour is governed by the evolution of redundancy factor under both undrained axisymmetric compression and plane strain conditions, and a reversal of deviatoric stress in stress path for medium loose systems occurs due to the fact that the system becomes a structural mechanism (RF<1) transiently at the microscopic level during the evolution.Guobin Gong Peng Lin Yawei Qin Jun Wei 2012Acta Mechanica Solida Sinica2012,25,6:2
19The occurrence of per-and polyfluoroalkyl substances(PFASs) in fluoropolymer raw materials and products made in China显示文摘Perfluorooctanoic acid(PFOA), its salts, and related compounds were listed as new persistent organic pollutants by the Stockholm Convention in 2019.In this study, the occurrence of residues of PFOA and other per-and polyfluoroalkyl substances(PFASs) in raw materials and fluoropolymer products from the Chinese fluoropolymer industries are reported for the first time.The PFOA concentrations in raw materials and fluoropolymer products were in the range of 6.7 to 1.1 × 10^(6) ng/g, and Lingyi Meng Boyu Song Yao Lu Kun Lv Wei Gao Yawei Wang Guibin Jiang 2021Journal of Environmental Sciences2021,33,9:2
20Baf60b-mediated ATM-p53 activation blocks cell identity conversion by sensing chromatin opening显示文摘由系特定的抄写因素的表示的系变换是改变那的 epigenetic 的进程有低效率。一个房间由抵抗系变换的机制大部分是未知的。使用肝特定的抄写因素 Foxa3, Hnf1 和 Gata4 (3TF ) 在老鼠成纤维细胞导致肝的变换,我们证明 3TF 导致了 ATM-p53 小径的强壮的激活,它导致了增长拘捕和房间死亡,和它进一步阻止了肝的变换。尤其是, ATM 激活,独立于 DNA 损坏,对染色质在肝的变换期间开作出回应。由在肝的变换期间描绘早分子的事件,我们发现了那 Baf60b,改变建筑群的 SWI/SNF 染色质的一个成员,连接染色质洞到由便于 ATM 招募到肝的基因 loci 的一块面板的开的染色质区域的 ATM 激活。这些调查结果由在察觉到揭示 ATM-p53 小径的功能使细胞的回答清楚些到系变换染色质洞。Shuyi Ji Linying Zhu Yimeng Gao Xiaoran Zhang Yupeng Yan Jin Cen Rongxia Li Rong Zeng Lujian Liao Chunhui Hou Yawei Gao Shaorong Gao Gang Wei Lijian Hui 2017Cell Research2017,27,5:2
返回顶部 每页显示:
共3页 首页 上一页 第1页 下一页 末页 /3 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费