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1Multiple genetic alterations and behavior of cellular biology in gastric cancer and other gastric mucosal lesions:H.pylori infection,histological types and staging显示文摘AIM To investigate the expression of multiplegenes and the behavior of cellular biology ingastric cancer(GC)and other gastric mucosallesions and their relations to Helicobacter pylori(H.pylori)infection,tumor staging andhistological subtypes.METHODS Three hundred and twenty-sevenspecimens of gastric mucosa obtained viaendoscopy or surgical resection,and ABCimmunohistochemical staining were used todetect the expression of p53,p16,Bcl-2 andCOX-2 proteins.H.pylori was determined byrapid urea test combined with pathologicalstaining or14C urea breath test.Cellular image analysis was performed in 66 patients withintestinal metaplasia(IM)and/or dysplasia(Dys).In 30 of them,both cancer and theparacancerous tissues were obtained at the timeof surgery.Histological pattern,tumor staging,lymph node metastasis,grading ofdifferentiation and other clinical data werestudied in the medical records.RESULTS p16 expression of IM or Dys wassignificantly lower in positive H.pylori chronicatrophic gastritis(CAG)than those withnegative H.pylori(CAG:54.8% vs 88.0%,IM:34.4% vs 69.6%,Dys:23.8% vs 53.6%,allP<0.05),Bcl-2 or COX-2 expression of IM orDys in positive H.pylori cases was significantlyhigher than that without H.pylori(Bcl-2:68.8%vs23.9%,90.5% vs 60.7%;COX-2:50.0% vs10.8%,61.8% vs 17.8%;all P<0.05).Themean number of most parameters of cellularimage analysis in positive H.pylori group wassignificantly higher than that in negative H.pylori group(Ellipser:53±14,40±12μm,Area1:748±572,302±202 μm2,Area2:3050±1661,1681±1990 μm2,all P<0.05;Ellipseb:79±23,58±15 μm,Ratio1:22%±5%,13%±4%,Ratio2:79%±17%,53%±20%,all P<0.01).There was significant correlation between Bcl-2and histologic pattern of gastric carcinoma,andbetween COX-2 and tumor staging or lymph nodemetastasis(Bcl-2:75.0% vs 16.7%;COX-2:76.0% vs 20.0%,79.2% vs 16.7%;allP<0.05).CONCLUSION p1l6, Bcl-2, and COX-2 but not p53 gene may play a role in the early genesis/ progression of gastric carcinoma and are associated with H. pylori infection. p53 gene is relatively late event in gastric tumorigenesis and mainly relates to its progression. There is more cellular-biological behavior of malignant tumor in gastric mucosal lesions with H. pylori infection. Aberrant Bcl-2 protein expression appears to be preferentially associated with the intestinal type cancer. COX-2 seems to be related to tumor staging and lymph node metastasis.Heng Jun Gao Lian Zhen Yu Jian Feng Bai Yan Shen Peng Gu Sun Han Lin Zhao Kun Miu Xiu Zhen Lü Xiao Yong Zhang Zhi Quan Zhao 2000World Journal of Gastroenterology2000,6,6:52
2Oral microbiomes: more and more importance in oral cavity and whole body显示文摘微生物在人的生活的每个角落出现,并且微生物影响人的生活的每个方面。人的口头的洞包含很多个不同产地。可变口头的微生物的协同作用和相互作用在外面对不受欢迎的刺激的侵略帮助人的身体。然而,微生物引起的植物群的不平衡贡献口头的疾病和全身的疾病。口头的 microbiomes 玩在人的微生物引起的社区和人的健康的一个重要角色。最近的使用开发了分子的方法极大地处于健康和疾病扩展了我们作文的知识和口头的 microbiome 的功能。在有在可变身体地点和可变健康状况的 microbiomes 的口头的 microbiomes 和他们的相互作用的研究在我们我们的身体的认知是批评的并且怎么在人的健康上做效果改进。Lu Gao Tiansong Xu Gang Huang Song Jiang Yan Gu Feng Chen 2018Protein & Cell2018,9,5:55
3Composition, source, mass closure of PM_(2.5) aerosols for four forests in eastern China显示文摘PM2.5 aerosols were collected in forests along north latitude in boreal-temperate, temperate, subtropical and tropical climatic zones in eastern China, i.e., Changbai Mountain Nature Reserve (CB), Dongping National Forest Park in Chongming Island (CM), Dinghu Mountain Nature Reserve (DH), Jianfengling Nature Reserve in Hainan Island (HN). The mass concentrations of PM2.5, organic carbon (OC), elemental carbon (EC), water soluble organic carbon (WSOC) as well as concentrations of ten inorganic ions (F-, Cl-, NO3-, SO42-, C2O42-, NH4+, Na+, K+, Ca2+, Mg2+) were determined. Aerosol chemical mass closures were achieved. The 24-hr average concentrations of PM2.5 were 38.8, 89.2, 30.4, 18 μg/m3 at CB, CM, DH and HN, respectively. Organic matter and EC accounted for 21%-33% and 1.3%-2.3% of PM2.5 mass, respectively. The sum of three dominant secondary ions (SO42-, NO3-, NH4+) accounted for 44%, 50%, 45% and 16% of local PM2.5 mass at CB, CM, DH and HN, respectively. WSOC comprised 35%-65% of OC. The sources of PM2.5 include especially important regional anthropogenic pollutions at Chinese forest areas.Li Li Wu Wang Jialiang Feng Dongping Zhang Huaijian Li Zeping Gu Bangjin Wang Guoying Sheng Jiamo Fu 2010Journal of Environmental Sciences2010,22,3:45
4New vacuum solar telescope and observations with high resolution显示文摘The New Vacuum Solar Telescope(NVST) is a one meter vacuum solar telescope that aims to observe fine structures on the Sun. The main goals of NVST are high resolution imaging and spectral observations, including measurements of the solar magnetic field. NVST is the primary ground-based facility used by the Chinese solar research community in this solar cycle. It is located by Fuxian Lake in southwest China, where the seeing is good enough to perform high resolution observations. We first introduce the general conditions at the Fuxian Solar Observatory and the primary science cases of NVST. Then, the basic structures of this telescope and instruments are described in detail. Finally, some typical high resolution data of the solar photosphere and chromosphere are also shown.Zhong Liu Jun Xu Bo-Zhong Gu Sen Wang Jian-Qi You Long-Xiang Shen Ru-Wei Lu Zhen-Yu Jin Lin-Fei Chen Ke Lou Zhi Li Guang-Qian Liu Zhi Xu Chang-Hui Rao Qi-Qian Hu Ru-Feng Li Hao-Wen Fu Feng Wang Men-Xian Bao Ming-Chan Wu Bo-Rong Zhang 2014Research in Astronomy and Astrophysics2014,14,6:37
5Prevalence of osteoporotic vertebral fracture among community-dwelling elderly in Shanghai显示文摘To the Editor:Osteoporosis is becoming a common,serious,and costly health problem,which causes over nine million fractures annually worldwide.[1] Currently,osteoporotic fractures are a considerable burden to public health services and have fairly high morbidity and mortality.[2] Vertebral fractures are the most common osteoporotic fracture and may lead to a high risk of further fracture and could be prevalent in both females and males.[3] Ling et al[4] and Ms.OS studies[5] evaluated the prevalence of vertebral fractures in Beijing and Hong Kong,respectively.However,our knowledge of the descriptive epidemiology and risk factors for vertebral fracture in China still remains poor.Chao Gao Yang Xu Li Li Wen-Qin Gu Chun-Tao Yi Qiong Zhu Hong-An Gu Bi-Hua Chen Qing-Qing Wang Feng Tang Ju-Liang Xu Jian-Miao Hou Hui-Jiang Song Hui Wang Zhi-Liang Wang Zhen-Lin Zhang 2019Chinese Medical Journal2019,,14:31
6Fringe pattern analysis using deep learning显示文摘In many optical metrology techniques,fringe pattern analysis is the central algorithm for recovering the underlying phase distribution from the recorded fringe patterns.Despite extensive research efforts for decades,how to extract the desired phase information,with the highest possible accuracy,from the minimum number of fringe patterns remains one of the most challenging open problems.Inspired by recent successes of deep learning techniques for computer vision and other applications,we demonstrate for the first time,to our knowledge,that the deep neural networks can be trained to perform fringe analysis,which substantially enhances the accuracy of phase demodulation from a single fringe pattern.The effectiveness of the proposed method is experimentally verified using carrier fringe patterns under the scenario of fringe projection profilometry.Experimental results demonstrate its superior performance,in terms of high accuracy and edge-preserving,over two representative single-frame techniques:Fourier transform profilometry and windowed Fourier transform profilometry.Shijie Feng Qian Chen Guohua Gu Tianyang Tao Liang Zhang Yan Hu Wei Yin Chao Zuo 2019Advanced Photonics2019,1,2:31
7Implementation of Envelope Analysis on a Wireless Condition Monitoring System for Bearing Fault Diagnosis显示文摘Envelope analysis is an effective method for characterizing impulsive vibrations in wired condition monitoring(CM)systems. This paper depicts the implementation of envelope analysis on a wireless sensor node for obtaining a more convenient and reliable CM system. To maintain CM performances under the constraints of resources available in the cost effective Zigbee based wireless sensor network(WSN), a low cost cortex-M4 F microcontroller is employed as the core processor to implement the envelope analysis algorithm on the sensor node. The on-chip 12 bit analog-to-digital converter(ADC) working at 10 k Hz sampling rate is adopted to acquire vibration signals measured by a wide frequency band piezoelectric accelerometer. The data processing flow inside the processor is optimized to satisfy the large memory usage in implementing fast Fourier transform(FFT) and Hilbert transform(HT). Thus, the envelope spectrum can be computed from a data frame of 2048 points to achieve a frequency resolution acceptable for identifying the characteristic frequencies of different bearing faults. Experimental evaluation results show that the embedded envelope analysis algorithm can successfully diagnose the simulated bearing faults and the data transmission throughput can be reduced by at least 95% per frame compared with that of the raw data, allowing a large number of sensor nodes to be deployed in the network for real time monitoring.Guo-Jin Feng James Gu Dong Zhen Mustafa Aliwan Feng-Shou Gu Andrew D.Ball 2015International Journal of Automation and computing2015,12,1:28
8Neuronal autophagy in cerebral ischemia显示文摘Autophagy has evolved as a conserved process for the bulk degradation and recycling of cytosolic components, such as long-lived proteins and organelles. In neurons, autophagy is important for homeostasis and protein quality control and is maintained at relatively low levels under normal conditions, while it is upregulated in response to pathophysiological conditions, such as cerebral ischemic injury. However, the role of autophagy is more complex. It depends on age or brain maturity, region, severity of insult, and the stage of ischemia. Whether autophagy plays a beneficial or a detrimental role in cerebral ischemia depends on various pathological conditions. In this review, we elucidate the role of neuronal autophagy in cerebral ischemia.Feng Xu Jin-Hua Gu Zheng-Hong Qin 2012Neuroscience Bulletin2012,28,5:26
9IN VIVO ~1 H MAGNETIC RESONANCE SPECTROSCOPY IN EVALUATION OF HEPATOCELLULAR CARCINOMA AND ITS EARLY RESPONSE TO TRANSCATHETER ARTERIAL CHEMOEMBOLIZATION显示文摘客观:调查值在 vivo 质子在对 hepatocellular 癌(HCC ) 和监视器的评价的磁性的回声光谱学(太太) 它立即在 transcatheter 以后的新陈代谢的变化动脉的 chemoembolization (不作声) 。方法:在这未来的研究,有大 HCC 的 28 个连续病人(> 或 = 在直径的 3 厘米) 由好针渴望活体检视证实了被招募。所有肝的损害和某 uninvolved 肝实质的 1H 太太与 1 被执行。5T 全部身体先生扫描仪。在他们之中, 15 个案例大约一个星期再被评估在以后不作声。主要代谢物象胆碱和类脂化合物和 afterinterventional 治疗在前那样被测量估计肿瘤的早反应。结果:在肝的 1H 太太的 Thetechnical 成功率高(33/41, 80%) ,仔细与呼吸运动,损害的地点,和 voxel 的尺寸有关。在系列, HCC 的胆碱混合物山峰与 uninvolved 肝实质相比提高了。在以后不作声,振幅和胆碱回声山峰的区域显著地下降了(从 0.352 +/- 的 choline-to-lipid 比率 0.080 ~ 0.167 +/-0.030, P = 0.026;从 0.205 +/- 0.060 ~ 0.070 +/-0.020, P = 0.042,分别地) ;然而,类脂化合物回声山峰上升了。结论:然而,在 vivo 1H,太太为大焦点的肝的损害的评估是技术上可行的重制度和稳定性不是几乎平淡的先生扫描。1H 太太能监视早阶段 HCC 在以后的新陈代谢的变化不作声但是限制 likequantification 仍然存在。Bin Wu Wei-jun Peng Pei-jun Wang Ya-jia Gu Wen-tao Li Liang-pin Zhou Feng Tang Guo-ming Zhong 2006Chinese Medical Sciences Journal2006,21,4:22
10Resistin induces insulin resistance, but does not affect glucose output in rat-derived hepatocytes显示文摘目的: 现在的学习的目的是观察效果抵抗在在在导出老鼠的 hepatocytes.Methods 的胰岛素敏感度和葡萄糖输出上: 老鼠肝细胞瘤房间线 H4IIE 与有教养、刺激抵抗在; supernant 葡萄糖和肝糖内容被检测。胰岛素受体底层(红外)-1 和 IRS-2,蛋白质激酶 B/Akt,肝糖 synthase kinase-3 (3 (GSK-3p ) , suppress 或表明 3 的 cytokine (SOCS-3 ) ,蛋白质内容,以及磷酸化地位被西方的弄污估计。对 SOCS-3 指导的特定的反感觉 oligodeoxynucleotides 习惯于击倒的 SOCS-3.Results :抵抗素导致了抗胰岛素性,但是在老鼠肝细胞瘤房间的affect 葡萄糖输出没衬里 H4IIE.Resistin 胰岛素的稀释多重效果包括刺激胰岛素的肝糖合成和红外的磷酸化,蛋白质激酶 B/Akt ,象 GSK-3beta.Resistin 一样,处理显著地导致了基因和 SOCS-3 的蛋白质表示,胰岛素发信号的一个已知的禁止者。而且,对 SOCS-3 处理指导的特定的反感觉 oligodeoxynucleotide 阻止了抵抗在从反对胰岛素 action.Conclusion : 主要功能抵抗在在肝上是导致胰岛素 resistance.SOCS-3 感应的可以贡献胰岛素在 H4HE hepatocytes 发信号的调停 resistin 的抑制。Feng LIU Tao YANG Bin WANG Min ZHANG Nan GU Jie QIU Hong-qi FAN Chun-mei ZHANG Li FEI Xiao- qing PAN Mei GUO Rong-hua CHEN Xi-rong GUO 2008Acta Pharmacologica Sinica2008,29,1:21
11Microfluidic Electrospray Niacin Metal-Organic Frameworks Encapsulated Microcapsules for Wound Healing显示文摘Niacin metal-organic frameworks(MOFs)encapsulated microcapsules with alginate shells and copper-/zinc-niacin framework cores were in situ synthesized by using a microfuidic electrospray approach for wound healing.As the alginate shells were bacteriaresponsively degradable,the niacin MOFs encapsulated microcapsules could intelligently,controllably,and programmably release calcium,copper,and zinc ions,depending on the degree of infections.Te released ions could not only kill microbes by destroying their membrane and inducing the outfow of nutrient substance,but also activate copper/zinc superoxide dismutase(Cu/ZnSOD)to eliminate oxygen free radicals and rescue the cells from oxidative stress injury.Furthermore,the simultaneously released niacin could promote hemangiectasis and absorption of functional metal ions.Tus,the niacin MOFs encapsulated microcapsules were imparted with outstanding antibacterial,antioxidant,and angiogenesis properties.Based on an in vivo study,we have also demonstrated that the chronic wound healing process of an infected full-thickness skin defect model could be signifcantly enhanced by using the niacin MOFs encapsulated microcapsules as therapeutic agent.Terefore,the microfuidic electrospray niacin MOFs encapsulated microcapsules are potential for clinical applications.Guopu Chen Yunru Yu Xiuwen Wu Gefei Wang Guosheng Gu Feng Wang Jianan Ren Huidan Zhang Yuanjin Zhao 2019Research2019,,1:21
12Sirtuin 1 alleviates endoplasmic reticulum stress-mediated apoptosis of intestinal epithelial cells in ulcerative colitis显示文摘BACKGROUND Sirtuin 1(SIRT1)is a nicotinamide adenine dinucleotide(NAD+)-dependent protein deacetylase that is involved in various diseases,including cancers,metabolic diseases,and inflammation-associated diseases.However,the role of SIRT1 in ulcerative colitis(UC)is still confusing.AIM To investigate the role of SIRT1 in intestinal epithelial cells(IECs)in UC and further explore the underlying mechanisms.METHODS We developed a coculture model using macrophages and Caco-2 cells.After treatment with the SIRT1 activator SRT1720 or inhibitor nicotinamide(NAM),the expression of occludin and zona occludens 1(ZO-1)was assessed by Western blot analysis.Annexin V-APC/7-AAD assays were performed to evaluate Caco-2 apoptosis.Dextran sodium sulfate(DSS)-induced colitis mice were exposed to SRT1720 or NAM for 7 d.Transferase-mediated dUTP nick-end labeling(TUNEL)assays were conducted to assess apoptosis in colon tissues.The expression levels of glucose-regulated protein 78(GRP78),CCAAT/enhancerbinding protein homologous protein(CHOP),caspase-12,caspase-9,and caspase-3 in Caco-2 cells and the colon tissues of treated mice were examined by quantitative real-time PCR and Western blot.RESULTS SRT1720 treatment increased the protein levels of occludin and ZO-1 and inhibited Caco-2 apoptosis,whereas NAM administration caused the opposite effects.DSS-induced colitis mice treated with SRT1720 had a lower disease activity index(P<0.01),histological score(P<0.001),inflammatory cytokine levels(P<0.01),and apoptotic cell rate(P<0.01),while exposure to NAM caused the opposite effects.Moreover,SIRT1 activation reduced the expression levels of GRP78,CHOP,cleaved caspase-12,cleaved caspase-9,and cleaved caspase-3 in Caco-2 cells and the colon tissues of treated mice.CONCLUSION SIRT1 activation reduces apoptosis of IECs via the suppression of endoplasmic reticulum stress-mediated apoptosis-associated molecules CHOP and caspase-12.SIRT1 activation may be a potential therapeutic strategy for UC.Meng-Ting Ren Meng-Li Gu Xin-Xin Zhou Mo-Sang Yu Hang-Hai Pan Feng Ji Chen-Yan Ding 2019World Journal of Gastroenterology2019,25,38:20
13From concept to reality-A review to the primary test stand and its preliminary application in high energy density physics显示文摘Pulsed power technology,whereas the electrical energy stored in a relative long period is released in much shorter timescale,is an efficient method to create high energy density physics(HEDP)conditions in laboratory.Around the beginning of this century,China Academy of Engineering Physics(CAEP)began to build some experimental facilities for HEDP investigations,among which the Primary Test Stand(PTS),a multi-module pulsed power facility with a nominal current of 10 MA and a current rising time~90 ns,is an important achievement on the roadmap of the electro-magnetically driven inertial confinement fusion(ICF)researches.PTS is the first pulsed power facility beyond 10 TW in China.Therefore,all the technologies have to be demonstrated,and all the engineering issues have to be overcome.In this article,the research outline,key technologies and the preliminary HEDP experiments are reviewed.Prospects on HEDP research on PTS and pulsed power development for the next step are also discussed.Jianjun Deng Weiping Xie Shuping Feng Meng Wang Hongtao Li Shengyi Song Minghe Xia Ji Ce An He Qing Tian Yuanchao Gu Yongchao Guan Bin Wei Xianbin Huang Xiaodong Ren Jiakun Dan Jing Li Shaotong Zhou Hongchun Cai Siqun Zhang Kunlun Wang Qiang Xu Yujuan Wang Zhaohui Zhang Guilin Wang Shuai Guo Yi He Yiwei Zhou Zhanji Zhang Libing Yang Wenkang Zou 2016Matter and Radiation at Extremes2016,1,1:19
14Polychlorinated biphenyls in the atmosphere of Taizhou,a major e-waste dismantling area in China显示文摘PM2.5,total suspended particles(TSP) and gas phase samples were collected at two sites of Taizhou,a major e-waste dismantling area in China.Concentrations,seasonal variations,congener profiles,gas-particle partitioning and size distribution of the atmospheric polychlorinated biphenyls(PCBs) were studied to assess the current state of atmospheric PCBs after the phase out of massive historical dismantling of PCBs containing e-wastes.The average 38PCBs concentration in the ambient air(TSP plus gas phase) near the e-waste dismantling area was(12,407 ± 9592) pg/m3 in winter,which was substantially lower than that found one decade ago.However,the atmospheric PCBs level near the e-waste dismantling area was 54 times of the reference urban site,indicating that the impact of the historical dismantling of PCBs containing e-wastes was still significant.Tri-Penta-CBs were dominant homologues,consisting with their dominant global production.Size distribution of particle-bound PCBs showed that higher chlorinated CBs tended to partition more to the fine particles,facilitating its long range air transportation.Wenliang Han Jialiang Feng Zeping Gu Minghong Wu Guoying Sheng Jiamo Fu 2010Journal of Environmental Sciences2010,22,4:18
15Advanced Space-based Solar Observatory(ASO-S):an overview显示文摘The Advanced Space-based Solar Observatory(ASO-S)is a mission proposed for the 25 th solar maximum by the Chinese solar community.The scientific objectives are to study the relationships between the solar magnetic field,solar flares and coronal mass ejections(CMEs).Three payloads are deployed:the Full-disk vector Magneto Graph(FMG),the Lyman-αSolar Telescope(LST)and the Hard X-ray Imager(HXI).ASO-S will perform the first simultaneous observations of the photospheric vector magnetic field,non-thermal imaging of solar flares,and the initiation and early propagation of CMEs on a single platform.ASO-S is scheduled to be launched into a 720 km Sun-synchronous orbit in 2022.This paper presents an overview of the mission till the end of Phase-B and the beginning of Phase-C.Wei-Qun Gan Cheng Zhu Yuan-Yong Deng Hui Li Yang Su Hai-Ying Zhang Bo Chen Zhe Zhang Jian Wu Lei Deng Yu Huang Jian-Feng Yang Ji-Jun Cui Jin Chang Chi Wang Ji Wu Zeng-Shan Yin Wen Chen Cheng Fang Yi-Hua Yan Jun Lin Wei-Ming Xiong Bin Chen Hai-Chao Bao Cai-Xia Cao Yan-Ping Bai Tao Wang Bing-Long Chen Xin-Yu Li Ye Zhang Li Feng Jiang-Tao Su Ying Li Wei Chen You-Ping Li Ying-Na Su Hai-Yan Wu Mei Gu Lei Huang Xue-Jun Tang 2019Research in Astronomy and Astrophysics2019,19,11:17
16A Possible Dynamic Mechanism for Rapid Production of the Extreme Hourly Rainfall in Zhengzhou City on 20 July 2021显示文摘In this study,the unprecedented extreme rainfall event during 19-20 July 2021,which caused devastating flooding in Zhengzhou City and its nearby areas,is examined based on observational data analysis and WRF model 40-h simulations on 1-km horizontal resolution.The results show that the model successfully reproduces(i)major synopticscale weather systems(i.e.,the western Pacific subtropical high,the Tibetan high,two typhoons,and the Huang-Huai cyclone),(ii)convective initiation along the east to north edge of the Songshan Mountain,where orographic lifting is obvious,and(iii)subsequent formation of the convective storm producing the extreme rainfall in Zhengzhou.In particular,the model generates the maximum rainfall rate of 233 mm h^(-1)and 40-h accumulated rainfall of 704 mm,corresponding well to the observed extreme values of 201.9 mm h^(-1)and 818 mm,at nearly observed timing and location.Importantly,the model reproduces an intense quasi-stationary,well-organized meso-γ-scale convective system,surrounded by an arc-shaped convergence zone,allowing the development of convective updrafts in a three-quarter circle around the convective system,in a way similar to“multidirectional pumping,”attracting all associated precipitation overlaid and concentrated into the same trailing region to generate the extreme hourly rainfall over Zhengzhou.Our study emphasizes the significant contribution of the unique dynamic structure of the well-organized meso-γ-scale convective system to the record-high hourly rainfall.A possible dynamic mechanism for short-time extreme rainfall production is proposed.That is,the arc-shaped convergence zone of the mesoscale convective system,acting like multidirectional lifting pumps,transports precipitation from different directions into the same region,and thus produces the extreme rainfall.The results gained herein may shed new light on better understanding and forecasting of short-time extreme rainfall.Jinfang YIN Haodong GU Xudong LIANG Miao YU Jisong SUN Yanxin XIE Feng LI Chong WU 2022Journal of Meteorological Research2022,36,1:17
17Prolonged exposure to resistin inhibits glucose uptake in rat skeletal muscles显示文摘瞄准:在 basaland 上估计 resistin 的行动的效果和机制在老鼠的刺激胰岛素的葡萄糖举起骨胳的肌肉 cells.Methods:老鼠 myoblasts ( L6 ) werecultured 并且区分了进刺激与单个商业 resistin 跟随的 myotubes ( 130 ng/mL , 0-24 h )或从有 resistin-expressingvectors 的 293-T 房间 transfected 的有教养的上层清液( 130 ng/mL , 0-24 h ) .Liquid 焕发数被用来测定[ 3H ]胰岛素敏感的葡萄糖 transporters GLUT4 andGLUT1 的 2-deoxyglucoseuptake .The translocation , 联系synaptosomal 的蛋白质 23 ( SNAP23 )并且充斥蛋白质内容,以及 tyrosinephosphorylation statu 有单个 resistin 或有教养的 supernatantcontaining recombinant resistin 的 L6 myotubes 的处理减少了基础、刺激胰岛素的 2-deoxyglucose 举起 andimpaired 刺激胰岛素的 GLUT4 translocation.While SNAP23 蛋白质内容被减少, noeffects 在 GLUT4 或没有影响它的蛋白质内容,也减少的 insulin-stimulatedIRS-1 酷氨酸 phosphorylation 铺平的 GLUT1 蛋白质内容 Resistin 被注意从有 resistin-expr 的 293-T 房间 transfected 的效果 ofrecombinant resistin Resistin 调整了 IRS-1 功能并且减少响应 SNAP23 mayhave 的 insulin.The downregulated 表示的 GLUT4translocation 和葡萄糖举起部分由 resistin 处理 Theseobservations 热点归因于葡萄糖举起的减少在到肥胖的类型 2 diabetesrelated 的 pathophysiology 的 resistin 的潜在的角色。Hong-qi FAN Nan GU Feng LIU Li FEI Xiao-qin PAN Mei GUO Rong-hua CHEN Xi-rong GUO 2007Acta Pharmacologica Sinica2007,28,3:16
18Design,modeling,and control of morphing aircraft:A review显示文摘A morphing aircraft can adapt its configuration to suit different types of tasks,which is also an important requirement of Unmanned Aerial Vehicles(UAV).The successful development of an unmanned morphing aircraft involves three steps that determine its ability and intelligent:configuration design,dynamic modeling and flight control.This study conducts a comprehensive survey of morphing aircraft.First,the methods to design the configuration of a morphing aircraft are presented and analyzed.Then,the nonlinear dynamic characteristics and aerodynamic interference caused by a morphing wing are described.Subsequently,the dynamic modeling and flight control methods for solving the flight control problems are summarized with respect to these features.Finally,the general as well as special challenges ahead of the development of intelligent morphing aircraft are discussed.The findings can provide a theoretical and technical reference for designing future morphing aircraft or morphing-wing UAVs.Lingling CHU Qi LI Feng GU Xintian DU Yuqing HE Yangchen DENG 2022Chinese Journal of Aeronautics2022,35,5:16
19Leakage Prediction Method for Contacting Mechanical Seals with Parallel Faces显示文摘Since the beginning of the 20th century, many researches on the sealing characteristic of mechanical seals were carried out broadly and in depth by various methods and some leakage models were built. But due to the lack of the way to characterize the main factors of influence on the leakage, most of the early researches were based on the assumptions that the seal faces topography and the frictional conditions were invariant. In the early built models, the effect of the surface topography change of the seal face on the leakage rate was neglected. Based on the fractal theory, the contact of end faces of the rotary and stationary rings was simplified to be the contact of a rough surface and an ideal rigid smooth surface, and the contact interface’s cavity size-distribution function as well as the fractal characteristic of the cavity profile curve was discussed. By analyzing the influence of abrasion on the seal face topography and the leakage channel, the time-correlation leakage prediction model of mechanical seals based on the fractal theory was established and the method for predicting the leakage rate of mechanical seals with parallel plane was proposed. The values of the leakage rate predicted theoretically are similar to the measured values of the leakage rate in the model test and in situ test. The experimental results indicate that the leakage rate of mechanical seals is a transient value. The surface topography of the end faces of the seal rings and its change during the frictional wear of mechanical seals can be accurately characterized by the fractal parameters. Under the work conditions of changeless frictional mechanism, the fractal parameters measured or calculated based on the accelerated testing equation can be used to predict the leakage rate of mechanical seal in service. The proposed research provides the basis for determining the leakage state and predicting working life of mechanical seal.SUN Jianjun WEI Long FENG Xiu GU Boqin 2010Chinese Journal of Mechanical Engineering2010,23,1:16
20Prevalence, awareness, treatment, and control of hypertension in the non-dialysis chronic kidney disease patients显示文摘ZHENG Ying CAI Guang-yan CHEN Xiang-mei FU Ping CHEN Jiang-hua DING Xiao-qiang YU Xue-qing LIN Hong-li LIU Jian XIE Ru-juan WANG Li-ning NI Zhao-hui LIU Fu-you YIN Ai-ping XING Chang-ying WANG Li SHI Wei LIU Jian-she HE Ya-ni DING Guo-hua LI Wen-ge WU Guang-li MIAO Li-ning CHEN Nan SU Zhen MEI Chang-lin ZHAO Jiu-yang GU Yong BAI Yun-kai LUO Hui-min LIN Shan CHEN Meng-hua GONG Li YANG Yi-bin YANG Xiao-ping LI Ying WAN Jian-xin WANG Nian-song LI Hai-ying XI Chun-sheng HAO Li XU Yan FANG Jing-ai LIU Bi-cheng LI Rong-shan WANG Rong ZHANG Jing-hong WANG Jian-qin LOU Tan-qi SHAO Feng-min MEI Feng LIU Zhi-hong YUAN Wei-jie SUN Shi-ren ZHANG Ling ZHOU Chun-hua CHEN Qin-kai JIA Shun-lian GONG Zhi-feng GUAN Guang-ju XIA Tian ZHONG Liang-bao 2013Chinese Medical Journal2013,,12:16
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