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| 1 | ERK kinase phosphorylates and destabilizes the tumor suppressor FBW7 in pancreatic cancer显示文摘 | Shunrong Ji Yi Qin Si Shi Xiangyuan Liu Hongli HU Hu Zhou Jing Gao Bo Zhang Wenyan Xu Jiang Liu Dingkong Liang Liang Liu Chen Liu Jiang Long Haijun Zhou Paul J Chiao Jin Xu Quanxing Ni Daming Gao Xianjun Yu | 2015 | Cell Research2015,25,5: | 19 |
| 2 | Carbon pools and fluxes in the China Seas and adjacent oceans显示文摘The China Seas include the South China Sea, East China Sea, Yellow Sea, and Bohai Sea. Located off the Northwestern Pacific margin, covering 4700000 km^2 from tropical to northern temperate zones, and including a variety of continental margins/basins and depths, the China Seas provide typical cases for carbon budget studies. The South China Sea being a deep basin and part of the Western Pacific Warm Pool is characterized by oceanic features; the East China Sea with a wide continental shelf, enormous terrestrial discharges and open margins to the West Pacific, is featured by strong cross-shelf materials transport; the Yellow Sea is featured by the confluence of cold and warm waters; and the Bohai Sea is a shallow semiclosed gulf with strong impacts of human activities. Three large rivers, the Yangtze River, Yellow River, and Pearl River, flow into the East China Sea, the Bohai Sea, and the South China Sea, respectively. The Kuroshio Current at the outer margin of the Chinese continental shelf is one of the two major western boundary currents of the world oceans and its strength and position directly affect the regional climate of China. These characteristics make the China Seas a typical case of marginal seas to study carbon storage and fluxes. This paper systematically analyzes the literature data on the carbon pools and fluxes of the Bohai Sea,Yellow Sea, East China Sea, and South China Sea, including different interfaces(land-sea, sea-air, sediment-water, and marginal sea-open ocean) and different ecosystems(mangroves, wetland, seagrass beds, macroalgae mariculture, coral reefs, euphotic zones, and water column). Among the four seas, the Bohai Sea and South China Sea are acting as CO_2 sources, releasing about0.22 and 13.86–33.60 Tg C yr^(-1) into the atmosphere, respectively, whereas the Yellow Sea and East China Sea are acting as carbon sinks, absorbing about 1.15 and 6.92–23.30 Tg C yr^(-1) of atmospheric CO_2, respectively. Overall, if only the CO_2 exchange at the sea-air interface is considered, the Chinese marginal seas appear to be a source of atmospheric CO_2, with a net release of 6.01–9.33 Tg C yr^(-1), mainly from the inputs of rivers and adjacent oceans. The riverine dissolved inorganic carbon (DIC) input into the Bohai Sea and Yellow Sea, East China Sea, and South China Sea are 5.04, 14.60, and 40.14 Tg C yr^(-1),respectively. The DIC input from adjacent oceans is as high as 144.81 Tg C yr^(-1), significantly exceeding the carbon released from the seas to the atmosphere. In terms of output, the depositional fluxes of organic carbon in the Bohai Sea, Yellow Sea, East China Sea, and South China Sea are 2.00, 3.60, 7.40, and 5.92 Tg C yr^(-1), respectively. The fluxes of organic carbon from the East China Sea and South China Sea to the adjacent oceans are 15.25–36.70 and 43.93 Tg C yr^(-1), respectively. The annual carbon storage of mangroves, wetlands, and seagrass in Chinese coastal waters is 0.36–1.75 Tg C yr^(-1), with a dissolved organic carbon(DOC) output from seagrass beds of up to 0.59 Tg C yr^(-1). Removable organic carbon flux by Chinese macroalgae mariculture account for 0.68 Tg C yr^(-1) and the associated POC depositional and DOC releasing fluxes are 0.14 and 0.82 Tg C yr^(-1), respectively. Thus, in total, the annual output of organic carbon, which is mainly DOC, in the China Seas is 81.72–104.56 Tg C yr^(-1). The DOC efflux from the East China Sea to the adjacent oceans is 15.00–35.00 Tg C yr^(-1). The DOC efflux from the South China Sea is 31.39 Tg C yr^(-1). Although the marginal China Seas seem to be a source of atmospheric CO_2 based on the CO_2 flux at the sea-air interface, the combined effects of the riverine input in the area, oceanic input, depositional export,and microbial carbon pump(DOC conversion and output) indicate that the China Seas represent an important carbon storage area. | Nianzhi JIAO Yantao LIANG Yongyu ZHANG Jihua LIU Yao ZHANG Rui ZHANG Meixun ZHAO Minhan DAI Weidong ZHAI Kunshan GAO Jinming SONG Dongliang YUAN Chao LI Guanghui LIN Xiaoping HUANG Hongqiang YAN Limin HU Zenghu ZHANG Long WANG Chunjie CAO Yawei LUO Tingwei LUO Nannan WANG Hongyue DANG Dongxiao WANG Si ZHANG | 2018 | Science China Earth Sciences2018,61,11: | 12 |
| 3 | Effects of urbanization on daily temperature extremes in North China显示文摘在都市化引起的诺思中国的每日的温度极端的地区性的变化从 268 个气象学的车站根据最大、最小的温度观察的一致每日的系列从观察事实和模型估计进一步被学习, NCEP/DOE AMIP-II 分析数据( R-2 ),并且由地区性的气候模型( RegCM3 )的模拟的数据。在长时间规模上的地区性的温暖的观察事实被分析温度极端的索引在期间获得两次 19612010 和 19512010 的时期。为都市化效果, ^ 对减少在的贡献年度并且冬季日报分别地,温度范围(数据终端就绪) 是 56.0% 和 52.9% ,最低最小的温度(TNn ) 的增加由城市、农村的观察的比较是 35.7% 和 26.2% 。在另一方面,为对比与观察由 R-2 数据获得了都市化贡献的年度温暖的夜里(TN90p ) 的数字的增加是 60.9% 。并且观察到在每日的温度极端的地区性的温暖的事实也在模拟被反映,但是什么差别是在在诺思中国的农村区域的都市化进步将在相对到从模型估计的某程度的城市的区域的以下几年里突出。 | SI Pengt ZHENG Zuofang REN Yu LIANG Dongpo LI Mingcai SHU Wenjun | 2014 | Journal of Geographical Sciences2014,24,2: | 12 |
| 4 | Low-dose quercetin positively regulates mouse healthspan显示文摘Dear Editor,Aging is the leading risk factor for many chronic diseases,accounting for almost 60%of all deaths worldwide.How to achieve healthy aging,alleviate aging-related diseases,and extend healthspan has become a main topic of biomedical research(He et al.,2019).Geroprotective compounds,such as metformin and rapamycin,have been shown to improve both healthspan and lifespan in mice(Martin-Montalvo et al.,2013;Bitto et al.,2016),whereas nicotinamide partially improves healthspan in mice(Mitchell et al.,2018). | Lingling Geng Zunpeng Liu Si Wang Shuhui Sun Shuai Ma Xiaoqian Liu Piu Chan Liang Sun Moshi Song Weiqi Zhang Guang-Hui Liu Jing Qu | 2019 | Protein & Cell2019,10,10: | 12 |
| 5 | Mir-30d increases intracellular survival of Helicobacter pylori through inhibition of autophagy pathway显示文摘AIM: To determine if mir-30 d inhibits the autophagy response to Helicobacter pylori(H. pylori) invasion and increases H. pylori intracellular survival.METHODS: The expression of mir-30 d was detected by quantitative polymerase chain reaction(PCR), and autophagy level was examined by transmission electron microscopy, western blot, and GFP-LC3 puncta assay in human AGS cells and GES-1 cells. Luciferase reporter assay was applied to confirm the specificity of mir-30 d regulation on the expression of several core molecules involved in autophagy pathway. The expression of multiple core proteins were analyzed at both the m RNA and protein level, and the intracellular survival of H. pylori after different treatments was detected by gentamicin protection assay.RESULTS: Autophagy level was increased in AGS and GES-1 cells in response to H. pylori infection, which was accompanied by upregulation of mir-30 d expression(P < 0.05, vs no H. pylori infection). In the two gastric epithelial cell lines, mimic mir-30 d was found to repress the autophagy process, whereas mir-30 d inhibitor increased autophagy responseto H. pylori invasion. mir-30 d mimic decreased the luciferase activity of wild type reporter plasmids carrying the 3′ untranslated region(UTR) of all five tested genes(ATG2B, ATG5, ATG12, BECN1, and BNIP3L), whereas it had no effect on the mutant reporter plasmids. These five genes are core genes of autophagy pathway, and their expression was reduced significantly after mir-30 d mimic transfection(P < 0.05, vs control cells without mir-30 d mimic treatment). Mir-30 d mimic transfection and direct inhibition of autophagy increased the intracellular survival of H. pylori in AGS cells.CONCLUSION: Mir-30 d increases intracellular survival of H. pylori in gastric epithelial cells through inhibition of multiple core proteins in the autophagy pathway. | Xiao-Jun Yang Ruo-Huang Si Yu-He Liang Bing-Qiang Ma Ze-Bin Jiang Bin Wang Peng Gao | 2016 | World Journal of Gastroenterology2016,22,15: | 11 |
| 6 | Modeling xeroderma pigmentosum associated neurological pathologies with patients-derived iPSCs显示文摘干皮病 pigmentosum (XP ) 是联系 XP 的基因的变化引起的一组基因混乱,导致 DNA 修理的缺陷。XP 病人经常展出神经病学的退化,而是内在的机制是未知的,部分地由于合适的疾病模型的缺乏。这里,我们产生了包括 XPA, XPB, XPC, XPG,和 XPV 在五不同 XP 基因怀有变化的病人特定的导致的 pluripotent 干细胞(iPSCs ) 。这些 iPSCs 进一步被区分到神经房间,并且他们到 DNA 损坏应力的危险性被调查。在神经干细胞(NSC ) 或神经原的 XPA 的变化导致了严重 DNA 损坏修理缺点,并且有变异的 XPA 的这些神经房间对 DNA 导致损坏的 apoptosis 过分敏感。因此, XP 变异的神经房间代表珍贵工具在 XP 病人澄清神经病学的畸形的分子的机制。 | Lina Fu Xiuling Xu Ruotong Ren Jun Wu Weiqi Zhang Jiping Yang Xiaoqing Ren Si Wang Yang Zhao Liang Sun Yang Yu Zhaoxia Wang Ze Yang Yun Yuan Jie Qiao Juan Carlos Izpisua Belmonte Jing Qu Guang-Hui Liu | 2016 | Protein & Cell2016,7,3: | 11 |
| 7 | Graphitic carbon nitride (g-C3N4)-based nanosized heteroarrays: Promising materials for photoelectrochemical water splitting显示文摘Photoelectrochemical(PEC)water splitting is recognized as a sustainable strategy for hydrogen generation due to its abundant hydrogen source,utilization of inexhaustible solar energy,high-purity product,and environment-friendly process.To actualize a practical PEC water splitting,it is paramount to develop efficient,stable,safe,and low-cost photoelectrode materials.Recently,graphitic carbon nitride(g-C3N4)has aroused a great interest in the new generation photoelectrode materials because of its unique features,such as suitable band structure for water splitting,a certain range of visible light absorption,nontoxicity,and good stability.Some inherent defects of g-C3N4,however,seriously impair further improvement on PEC performance,including low electronic conductivity,high recombination rate of photogenerated charges,and limited visible light absorption at long wavelength range.Construction of g-C3N4-based nanosized heteroarrays as photoelectrodes has been regarded as a promising strategy to circumvent these inherent limitations and achieve the high-performance PEC water splitting due to the accelerated exciton separation and the reduced combination of photogenerated electrons/holes.Herein,we summarize in detail the latest progress of g-C3N4-based nanosized heteroarrays in PEC water-splitting photoelectrodes.Firstly,the unique advantages of this type of photoelectrodes,including the highly ordered nanoarray architectures and the heterojunctions,are highlighted.Then,different g-C3N4-based nanosized heteroarrays are comprehensively discussed,in terms of their fabrication methods,PEC capacities,and mechanisms,etc.To conclude,the key challenges and possible solutions for future development on g-C3N4-based nanosized heteroarray photoelectrodes are discussed. | Liqun Wang Wenping Si Yueyu Tong Feng Hou Daniele Pergolesi Jungang Hou Thomas Lippert Shi Xue Dou Ji Liang | 2020 | Carbon Energy2020,2,2: | 10 |
| 8 | Single-cell transcriptomic atlas of primate cardiopulmonary aging显示文摘Aging is a major risk factor for many diseases,especially in highly prevalent cardiopulmonary comorbidities and infectious diseases including Coronavirus Disease 2019(COVID-19).Resolving cellular and molecular mechanisms associated with aging in higher mammals is therefore urgently needed.Here,we created young and old non-human primate single-nucleus/cell transcriptomic atlases of lung,heart and artery,the top tissues targeted by SARS-CoV-2.Analysis of cell type-specific aging-associated transcriptional changes revealed increased systemic inflammation and compromised virus defense as a hallmark of cardiopulmonary aging.With age,expression of the SARS-CoV-2 receptor angiotensin-converting enzyme 2(ACE2)was increased in the pulmonary alveolar epithelial barrier,cardiomyocytes,and vascular endothelial cells.We found that interleukin 7(IL7)accumulated in aged cardiopulmonary tissues and induced ACE2 expression in human vascular endothelial cells in an NF-κB-dependent manner.Furthermore,treatment with vitamin C blocked IL7-induced ACE2 expression.Altogether,our findings depict the first transcriptomic atlas of the aged primate cardiopulmonary system and provide vital insights into age-linked susceptibility to SARS-CoV-2,suggesting that geroprotective strategies may reduce COVID-19 severity in the elderly. | Shuai Ma Shuhui Sun Jiaming Li Yanling Fan Jing Qu Liang Sun Si Wang Yiyuan Zhang Shanshan Yang Zunpeng Liu Zeming Wu Sheng Zhang Qiaoran Wang Aihua Zheng Shuguang Duo Yang Yu Juan Carlos Izpisua Belmonte Piu Chan Qi Zhou Moshi Song Weiqi Zhang Guang-Hui Liu | 2021 | Cell Research2021,31,4: | 10 |
| 9 | CRISPR/Cas9-mediated targeted gene correction in amyotrophic lateral sclerosis patient iPSCs显示文摘 | Lixia Wang Fei Yi Lina Fu Jiping Yang Si Wang Zhaoxia Wang Keiichiro Suzuki Liang Sun Xiuling Xu Yang Yu Jie Qiao Juan Carlos Izpisua Belmonte Ze Yang Yun Yuan Jing Qu Guang-Hui Liu | 2017 | Protein & Cell2017,8,5: | 10 |
| 10 | Bionic Coupling of Hardness Gradient to Surface Texture for Improved Anti-wear Properties显示文摘 | Long Zheng Jianjun Wu Si Zhang Shishuai Sun Zhihui Zhang Song Liang Zhenning Liu Luquan Ren | 2016 | Journal of Bionic Engineering2016,13,3: | 9 |
| 11 | 基于体波有限频层析成像的青藏高原南部和中部下方印度大陆岩石层俯冲和撕裂的三维图像显示文摘使用TIBET-31N无源地震台阵以及以前临时地震台阵记录到的远震体波数据进行了有限频层析成像反演,对青藏高原南部及中部的三维速度结构成像。在喜马拉雅和拉萨地块下方存在向北倾角40°的高速体。我们把这些高速异常区域解释为俯冲的印度大陆岩石层(ICL)。印度大陆岩石层似乎在青藏高原中部比东部向北延伸更多——沿85°E在31°N到达350km深处,而沿91°E则是在30°N到达350km深度。P波和S波低速异常区在当惹雍错裂谷、亚东—谷露裂谷和错那裂谷下方从下地壳延伸至≥180km深度,这表明青藏高原南部的裂谷可能包含了整个岩石层的变形。当惹雍错裂谷下方的异常区向下延伸到约180km,而亚东—谷露裂谷西部和错那裂谷东部的异常延伸到了超过300km的深度。亚东—谷露裂谷西部的低速区上地幔延伸至最北,并且似乎与青藏高原中部下方广阔的上地幔低速区相连。于是,北向俯冲的印度板块沿着南北走向的裂缝撕裂。这些裂缝允许或者导致的软流层上涌同青藏高原北部上地幔相类似。 | Xiaofeng Liang Yun Chen Xiaobo Tian Yongshun John Chen James Ni Andrea Gallegos Simon L.Klemperer Minling Wang Tao Xu Changqing Sun Shaokun Si Haiqiang Lan Jiwen Teng 左思成 | 2016 | 世界地震译丛2016,47,6: | 8 |
| 12 | Stabilization of heterochromatin by CLOCK promotes stem cell rejuvenation and cartilage regeneration显示文摘Accumulating evidence indicates an association between the circadian clock and the aging process.However,it remains elusive whether the deregulation of circadian clock proteins underlies stem cell aging and whether they are targetable for the alleviation of aging-associated syndromes.Here,we identified a transcription factor-independent role of CLOCK,a core component of the molecular circadian clock machinery,in counteracting human mesenchymal stem cell(hMSC)decay.CLOCK expression was decreased during hMSC aging.In addition,CLOCK deficiency accelerated hMSC senescence,whereas the overexpression of CLOCK,even as a transcriptionally inactive form,rejuvenated physiologically and pathologically aged hMSCs.Mechanistic studies revealed that CLOCK formed complexes with nuclear lamina proteins and KAP1,thus maintaining heterochromatin architecture and stabilizing repetitive genomic sequences.Finally,gene therapy with lentiviral vectors encoding CLOCK promoted cartilage regeneration and attenuated age-related articular degeneration in mice.These findings demonstrate a noncanonical role of CLOCK in stabilizing heterochromatin,promoting tissue regeneration,and mitigating aging-associated chronic diseases. | Chuqian Liang Zunpeng Liu Moshi Song Wei Li Zeming Wu Zehua Wang Qiaoran Wang Si Wang Kaowen Yan Liang Sun Tomoaki Hishida Yanning Cai Juan Carlos lzpisua Belmonte Pedro Guillen Piu Chan Qi Zhou Weiqi Zhang Jing Qu Guang-Hui Liu | 2021 | Cell Research2021,31,2: | 8 |
| 13 | Review on the NO removal from flue gas by oxidation methods显示文摘Due to the increasingly strict emission standards of NOx on various industries,many traditional flue gas treatment methods have been gradually improved.Except for selective catalytic reduction(SCR)and selective non-catalytic reduction(SNCR)methods to remove NOx from flue gas,theoxidation method is paying more attention to NOx removal now because of the potential to simultaneously remove multiple pollutants from flue gas.This paper summarizes the efficiency,reaction conditions,effect factors,and reaction mechanism of NO oxidation from the aspects of liquid-phase oxidation,gas-phase oxidation,plasma technology,and catalytic oxidation.The effects of free radicals and active components of catalysts on NO oxidation and the combination of various oxidation methods are discussed in detail.The advantages and disadvantages of different oxidation methods are summarized,and the suggestions for future research on NO oxidation are put forward at the end.The review on the NO removal by oxidation methods can provide new ideas for future studies on the NO removal from flue gas. | Meng Si Boxiong Shen George Adwek Lifu Xiong Lijun Liu Peng Yuan Hongpei Gao Cai Liang Qihai Guo | 2021 | Journal of Environmental Sciences2021,33,3: | 8 |
| 14 | Association of Overlapped and Un-overlapped Comorbidities with COVID-19 Severity and Treatment Outcomes: A Retrospective Cohort Study from Nine Provinces in China显示文摘Objective Several COVID-19 patients have overlapping comorbidities. The independent role of each component contributing to the risk of COVID-19 is unknown, and how some non-cardiometabolic comorbidities affect the risk of COVID-19 remains unclear.Methods A retrospective follow-up design was adopted. A total of 1,160 laboratory-confirmed patients were enrolled from nine provinces in China. Data on comorbidities were obtained from the patients’ medical records. Multivariable logistic regression models were used to estimate the odds ratio(OR) and 95% confidence interval(95% CI) of the associations between comorbidities(cardiometabolic or non-cardiometabolic diseases), clinical severity, and treatment outcomes of COVID-19.Results Overall, 158(13.6%) patients were diagnosed with severe illness and 32(2.7%) had unfavorable outcomes. Hypertension(2.87, 1.30–6.32), type 2 diabetes(T2 DM)(3.57, 2.32–5.49),cardiovascular disease(CVD)(3.78, 1.81–7.89), fatty liver disease(7.53, 1.96–28.96), hyperlipidemia(2.15, 1.26–3.67), other lung diseases(6.00, 3.01–11.96), and electrolyte imbalance(10.40, 3.00–26.10)were independently linked to increased odds of being severely ill. T2 DM(6.07, 2.89–12.75), CVD(8.47,6.03–11.89), and electrolyte imbalance(19.44, 11.47–32.96) were also strong predictors of unfavorable outcomes. Women with comorbidities were more likely to have severe disease on admission(5.46,3.25–9.19), while men with comorbidities were more likely to have unfavorable treatment outcomes(6.58, 1.46–29.64) within two weeks.Conclusion Besides hypertension, diabetes, and CVD, fatty liver disease, hyperlipidemia, other lung diseases, and electrolyte imbalance were independent risk factors for COVID-19 severity and poor treatment outcome. Women with comorbidities were more likely to have severe disease, while men with comorbidities were more likely to have unfavorable treatment outcomes. | MA Yan ZHU Dong Shan CHEN Ren Bo SHI Nan Nan LIU Si Hong FAN Yi Pin WU Gui Hui YANG Pu Ye BAI Jiang Feng CHEN Hong CHEN Li Ying FENG Qiao GUO Tuan Mao HOU Yong HU Gui Fen HU Xiao Mei HU Yun Hong HUANG Jin HUANG Qiu Hua HUANG Shao Zhen JI Liang JIN Hai Hao LEI Xiao LI Chun Yan LI Min Qing LI Qun Tang LI Xian Yong LIU Hong De LIU Jin Ping LIU Zhang MA Yu Ting MAO Ya MO Liu Fen NA Hui WANG Jing Wei SONG Fang Li SUN Sheng WANG Dong Ting WANG Ming Xuan WANG Xiao Yan WANG Yin Zhen WANG Yu Dong WU Wei WU Lan Ping XIAO Yan Hua XIE Hai Jun XU Hong Ming XU Shou Fang XUE Rui Xia YANG Chun YANG Kai Jun YUAN Sheng Li ZHANG Gong Qi ZHANG Jin Bo ZHANG Lin Song ZHAO Shu Sen ZHAO Wan Ying ZHENG Kai ZHOU Ying Chun ZHU Jun Teng ZHU Tian Qing ZHANG Hua Min WANG Yan Ping WANG Yong Yan 无 | 2020 | Biomedical and Environmental Sciences2020,33,12: | 8 |
| 15 | Projected impacts of climate change on protected birds and nature reserves in China显示文摘Knowledge about climate change impacts on species distribution at national scale is critical to biodiversity conservation and design of management programs.Although China is a biodiversity hot spot in the world,potential influence of climate change on Chinese protected birds is rarely studied. Here, we assess the impact of climate change on 108 protected bird species and nature reserves using species distribution modeling at a relatively fine spatial resolution(1 km) for the first time. We found that a large proportion of protected species would have potential suitable habitat shrink and northward range shift by 77–90 km in response to projected future climate change in 2080. Southeastern China would suffer from losing climate suitability, whereas the climate conditions in Qinghai–Tibet Plateau and northeastern China were projected to become suitable for more protected species. Onaverage, each protected area in China would experience a decline of suitable climate for 3–4 species by 2080. Climate change will modify which species each protected area will be suitable for. Our results showed that the risk of extinction for Chinese protected birds would be high, even in the moderate climate change scenario. These findings indicate that the management and design of nature reserves in China must take climate change into consideration. | Xueyan Li Nicholas Clinton Yali Si Jishan Liao Lu Liang Peng Gong | 2015 | Science Bulletin2015,60,19: | 8 |
| 16 | The combined influence of background climate and urbanization on the regional warming in Southeast China显示文摘把为精力( NCEP/DOE )的环境预言/部门的一致陆地表面空气温度和国家中心基于中国大气的模型 Intercomparison 工程( AMIP ) -II 分析数据( R-2 ),到东南中国的表面空气温度增加的主要贡献者被比较城市、农村的温度系列的趋势调查,以及观察,盖住 19542005 和 19792005 的二个时期并且 R-2 数据。从城市农村的比较的结果显示那个城市的热岛(UHI ) 完成在上地区性年度并且自从 1954,秋天最小温度增加占 10.5% 和 12.0% ,但是与 6.2% 和 10.6% 的更小的温暖的归属自从 1979。由把观察与 R-2 表面温度数据作比较的结果建议陆地使用为 32.9% 和 28.8% 改变报道在地区性年度并且自从 1979,秋天最小温度增加。因此,在东南中国的地区性的温度增加以后的陆地使用变化的影响在最后 30 年期间是更显著的。然而,它显示那 UHI 效果,由背景气候的温暖的变化压到,不在在最后 50 年期间的在东南中国上的地区性的温暖起一个重要作用。 | SI Peng REN Yu LIANG Dongpo LIN Bingwen | 2012 | Journal of Geographical Sciences2012,22,2: | 7 |
| 17 | Shear wave elastography results correlate with liver fibrosis histology and liver function reserve显示文摘AIM: To evaluate the correlation of shear wave elastography(SWE) results with liver fibrosis histology and quantitative function reserve.METHODS: Weekly subcutaneous injection of 60% carbon tetrachloride(1.5 m L/kg) was given to 12 canines for 24 wk to induce experimental liver fibrosis, with olive oil given to 2 control canines. At 24 wk, liver condition was evaluated using clinical biochemistry assays, SWE imaging, lidocaine metabolite monoethylglycine-xylidide(MEGX) test, and histologic fibrosis grading. Clinical biochemistry assays were performed at the institutional central laboratory for routine liver function evaluation. Liver stiffness was measured in triplicate from three different intercostal spaces and expressed as mean liver stiffness modulus(LSM). Plasma concentrations of lidocaine and its metabolite MEGX were determined using high-performance liquid chromatography repeated in duplicate. Liver biopsy samples were fixed in 10% formaldehyde, and liver fibrosis was graded using the modified histological activity index Knodell score(F0-F4). Correlations among histologic grading, LSM, and MEGX measures were analyzed with the Pearson linear correlation coefficient.RESULTS: At 24 wk liver fibrosis histologic grading was as follows: F0, n = 2(control); F1, n = 0; F2, n = 3; F3, n = 7; and F4, n = 2. SWE LSM was positively correlated with histologic grading(r = 0.835, P < 0.001). Specifically, the F4 group had a significantly higher elastic modulus than the F3, F2, and F0 groups(P = 0.002, P = 0.003, and P = 0.006, respectively), and the F3 group also had a significantly higher modulus than the control F0 group(P = 0.039). LSM was negatively associated with plasma MEGX concentrations at 30 min(r =-0.642; P = 0.013) and 60 min(r =-0.651; P = 0.012), time to ? of the maximum concentration(r =-0.538; P = 0.047), and the area under the curve(r =-0.636; P = 0.014). Multiple comparisons showed identical differences in these three measures: significantly lower with F4(P = 0.037) and F3(P = 0.032) as compared to F0 and significantly lower with F4 as compared to F2(P = 0.032).CONCLUSION: SWE LSM shows a good correlation with histologic fibrosis grading and pharmacologic quantitative liver function reserve in experimental severe fibrosis and cirrhosis. | Yan-Hong Feng Xiang-Dong Hu Lin Zhai Ji-Bin Liu Lan-Yan Qiu Yuan Zu Si Liang Yu Gui Lin-Xue Qian | 2016 | World Journal of Gastroenterology2016,22,17: | 7 |
| 18 | Online condition diagnosis for a two-stage gearbox machinery of an aerospace utilization system using an ensemble multi-fault features indexing approach显示文摘China manned space station is designed to operate for over ten years. Long-term and sustainable research on space science and technology will be conducted during its operation. The application payloads must meet the ‘‘long life and high reliability' mission requirement. Gearbox machinery is one of the essential devices in an aerospace utilization system, failure of which may lead to downtime loss even during some disastrous catastrophes. A fault diagnosis of gearbox has attracted attentions for its significance in preventing catastrophic accidents and guaranteeing sufficient maintenance. A novel fault diagnosis method based on the Ensemble Multi-Fault Features Indexing(EMFFI) approach is proposed for the condition monitoring of gearboxes. Different from traditional methods of signal analysis in the one-dimensional space, this study employs a supervised learning method to determine the faults of a gearbox in a two-dimensional space using the classification model established by training the features extracted automatically from diagnostic vibration signals captured. The proposed method mainly includes the following steps. First, the vibration signals are transformed into a bi-spectrum contour map utilizing bi-spectrum technology,which provides a basis for the following image-based feature extraction. Then, Speeded-Up Robustness Feature(SURF) is applied to automatically extract the image feature points of the bi-spectrum contour map using a multi-fault features indexing theory, and the feature dimension is reduced by Linear Discriminant Analysis(LDA). Finally, Random Forest(RF) is introduced to identify the fault types of the gearbox. The test results verify that the proposed method based on the multi-fault features indexing approach achieves the target of high diagnostic accuracy and can serve as a highly effective technique to discover faults in a gearbox machinery such as a two-stage one. | Min ZHOU Ke WANG Yang WANG Kaiji LUO Hongyong FU Liang SI | 2019 | Chinese Journal of Aeronautics2019,32,5: | 6 |
| 19 | Comparative genomic and transcriptomic analyses uncover the molecular basis of high nitrogen-use efficiency in the wheat cultivar Kenong 9204显示文摘Studying the regulatory mechanisms that drive nitrogen-use efficiency(NUE)in crops is important for sustainable agriculture and environmental protection.In this study,we generated a high-quality genome assembly for the high-NUE wheat cultivar Kenong 9204 and systematically analyzed genes related to nitrogen uptake and metabolism.By comparative analyses,we found that the high-affinity nitrate transporter gene family had expanded in Triticeae.Further studies showed that subsequent functional differentiation endowed the expanded family members with saline inducibility,providing a genetic basis for improving the adaptability of wheat to nitrogen deficiency in various habitats.To explore the genetic and molecular mechanisms of high NUE,we compared genomic and transcriptomic data from the high-NUE cultivar Kenong 9204(KN9204)and the low-NUE cultivar Jing 411 and quantified their nitrogen accumulation under high-and low-nitrogen conditions.Compared with Jing 411,KN9204 absorbed significantly more nitrogen at the reproductive stage after shooting and accumulated it in the shoots and seeds.Transcriptome data analysis revealed that nitrogen deficiency clearly suppressed the expression of genes related to cell division in the young spike of Jing 411,whereas this suppression of gene expression was much lower in KN9204.In addition,KN9204 maintained relatively high expression of NPF genes for a longer time than Jing 411 during seed maturity.Physiological and transcriptome data revealed that KN9204 was more tolerant of nitrogen deficiency than Jing 411,especially at the reproductive stage.The high NUE of KN9204 is an integrated effect controlled at different levels.Taken together,our data provide new insights into the molecular mechanisms of NUE and important gene resources for improving wheat cultivars with a higher NUE trait. | Xiaoli Shi Fa Cui Xinyin Han Yilin He Long Zhao Na Zhang Hao Zhang Haidong Zhu Zhexin Liu Bin Ma Shusong Zheng Wei Zhang Jiajia Liu Xiaoli Fan Yaoqi Si Shuiquan Tian Jianqing Niu Huilan Wu Xuemei Liu Zhuo Chen Deyuan Meng Xiaoyan Wang Liqiang Song Lijing Sun Jie Han Hui Zhao Jun Ji Zhiguo Wang Xiaoyu He Ruilin Li Xuebin Chi Chengzhi Liang Beifang Niu Jun Xiao Junming Li Hong-Qing Ling | 2022 | Molecular Plant2022,15,9: | 6 |
| 20 | Facile synthesis of Au embedded CuOx-CeO2 core/shell nanospheres as highly reactive and sinter-resistant catalysts for catalytic hydrogenation of p-nitrophenol显示文摘Exploring cost-effective catalysts with high catalytic performance and long-term stability has always been a general concern for environment protection and energy conversion.Here,Au nanoparticles(NPs)embedded CuOx-CeO2 core/shell nanospheres(Au@CuOx-CeO2 CSNs)have been successfully prepared through a versatile one-pot method at ambient conditions.The spontaneous auto-redox reaction between HAuCl4 and Ce(OH)3 in aqueous solution triggered the self-assembly growth of micro-/nanostructural Au@CuOx-CeO2 CSNs.Meanwhile,the CuOx clusters in Au@CuOx-CeO2 CSNs are capable of improving the anti-sintering ability of Au NPs and providing synergistic catalysis benefits.As a result,the confined Au NPs exhibited extraordinary thermal stability even at a harsh thermal condition up to 700℃.In addition,before and after the severe calcination process,Au@CuOx-CeO2 CSNs can exhibit enhanced catalytic activity and excellent recyclability towards the hydrogenation of p-nitrophenol compared to previously reported nanocatalysts.The synergistic catalysis path between Au/CuOx/CeO2 triphasic interfaces was revealed by density functional theory(DFT)calculations.The CuOx clusters around the embedded Au NPs can provide moderate adsorption strength of p-nitrophenol,while the adjacent CeO2-supported Au NPs can facilitate the hydrogen dissociation to form H*species,which contributes to achieve the efficient reduction of p-nitrophenol.This study opens up new possibilities for developing high-efficient and sintering-resistant micro-/nanostructural nanocatalysts by exploiting multiphasic systems. | Ke Wu Xin-Yu Wang Ling-Ling Guo Yue-Jiao Xu Liang Zhou Ze-Yu Lyu Kang-Yu Liu Rui Si Ya-Wen Zhang Ling-Dong Sun Chun-Hua Yan | 2020 | Nano Research2020,13,8: | 6 |