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| 1 | Altitudinal changes of surface pollen and vegetation on the north slope of the Middle Tianshan Mountains,China显示文摘To provide information on vegetation patterns and altitudinal distributions of pollen assemblage in surface soil layers,their complicated relationships in a dryland mountain-basin system in northwestern China and a realistic basis for paleovegetational reconstruction,we investigated 86 vegetation quadrats and analyzed 80 soil samples from the surface soil layers along an altitudinal transect on the north slope of the Middle Tianshan Mountains from alpine cushion vegetation at 3,510 m near glacier to desert vegetation at 460 m in the Gurbantunggut Desert.According to surface pollen assemblages and the results of the detrended correspondence analysis,the transect can be divided into six major altitudinal pollen zones as alpine cushion vegetation,alpine and subalpine meadows,montane Picea forest,forest-steppe ecotone,Artemisia desert and typical desert,which basically reflect the characteristics of the mountainous vegetation patterns on the north slope of the Middle Tianshan Mountains.However,Picea pollen also exists outside the spruce forest,Chenopodiaceae and Artemisia pollen appeared above the elevation of 1,300 m,indicating that most of them might be introduced from lower elevations by upslope winds.Airborne pollen researches from three regions at different elevations further suggest that a high-frequency northwest anabatic wind has a remarkable influence on the transportation and dispersion of surface pollen in the area. | YANG Zhenjing ZHANG Yun REN Haibao YAN Shun KONG Zhaochen MA Keping NI Jian | 2016 | Journal of Arid Land2016,8,5: | 17 |
| 2 | Pollen record and environmental evolution of Caotanhu wetland in Xinjiang since 4550 cal. a BP显示文摘This paper presents a multi-proxy reconstruction of the climate change in Caotanhu wetland using pollen, phytolith and charcoal records, and the data of loss of ignition (LOI), grain size analysis, and susceptibility. Results reveal that between 4550 and 2500 cal. a BP, a dry climatic condition was not favorable for the accumulation of peat. Since 2500 cal. a BP, the climate became humid and the wetland developed with abundant freshwater aquatic plants, which contributed to peat accumulation. Never-theless, alternate periods of rain and dry climate occurred during that period. Between 2500 and 1810 cal. a BP (550 BC―140 AD), the climate was more humid than at present. A lot of emerged plants, such as Phragmites, Typha and Sparganium, and freshwater green algae grew in the wetland which was sur-rounded by desert-steppe vegetation composed mainly of Chenopodiaceae, Artemisia, Compositae and Thalictrum. However, from 1810 to 1160 cal. a BP (140―790 AD), the water level started to decrease and hydrophyte species reduced greatly, but some Phragmites still grew in the wetland and around it was desert vegetation with high proportion of Chenopodiaceae and Artemisia. Then from 1160 to 650 a BP (790―1300 AD), it entered a period of desert-steppe with abundant mesic and xerophytic plants. And a lot of aquatic plants prevailed in the wetland. Here, what is noticeable is that percentages of arboreal pollen, consisting mainly of Betula and Picea, increased greatly and reached a maximal value of 27.2%, in which, Betula percentages rose to 23.2%. Hence, it is reasonable to conclude that Betula grew in the highland of the wetland, or Picea timberline shifted downward resulting in the increase of percentages of Betula and Picea pollen, which were transported into the wetland by flood or wind. But since 650 cal. a BP, desert vegetation prevailed around the wetland again with dominant Chenopodiaceae and Ar-temisia, and the climate was similar to modern one. Despite some aquatic plants still growing in the wetland at that time, their amounts diminished greatly. | ZHANG Yun KONG ZhaoChen NI Jian YAN Shun YANG ZhenJing | 2008 | Chinese Science Bulletin2008,53,7: | 11 |
| 3 | Data processing and initial results of Chang'e-3 lunar penetrating radar显示文摘To improve our understanding of the formation and evolution of the Moon,one of the payloads onboard the Chang'e-3(CE-3) rover is Lunar Penetrating Radar(LPR). This investigation is the first attempt to explore the lunar subsurface structure by using ground penetrating radar with high resolution. We have probed the subsurface to a depth of several hundred meters using LPR. In-orbit testing, data processing and the preliminary results are presented. These observations have revealed the configuration of regolith where the thickness of regolith varies from about 4 m to 6 m.In addition, one layer of lunar rock, which is about 330 m deep and might have been accumulated during the depositional hiatus of mare basalts, was detected. | Yan Su Guang-You Fang Jian-Qing Feng Shu-Guo Xing Yi-Cai Ji Bin Zhou Yun-Ze Gao Han Li Shun Dai Yuan Xiao Chun-Lai Li | 2014 | Research in Astronomy and Astrophysics2014,14,12: | 10 |
| 4 | An Abietane Diterpene and a Sterol from Fungus Phellinus igniarius显示文摘新 abietane diterpene12-hydroxy-7-oxo-5,8,11,13-tetraene-18,6-abietanolide 和新自然 sterolstigmasta-7,22-diene-3beta, 5alpha,6alpha-triol 从真菌 Phellinus igniarius.Their 结构的 fruiting 身体被孤立被分光镜的方法包括 2DNMR 技术阐明。 | Ying WANG Su Juan WANG Shun Yan MO Shuai LI Yong Chun YANG Jian Gong SHI | 2006 | Chinese Chemical Letters2006,17,4: | 10 |
| 5 | Fluctuation of Picea timberline and paleoenvironment onthe northern slope of Tian-shan Mountains during the late Holocene显示文摘As a good indicator of Holocene climate, the fluctuation of alpine timberline is a synthetical result of impacts of many environmental factors dur-ing geological and historical periods and modern times. As the dominant tree species of mountainous conifer forests on the northern slope of Tianshan Mountains in Xinjiang, the distribution of Picea schrenkiana and its population size are sensitive to climatic change. The typical natural profile of Huashuwozi and the nearby Xiaoxigou archaeologi-cal profile, located in Quanzijie Township, Jimusaer County in Xinjiang, were chosen to analyze and compare the relative high-resolution pollen records, and to measure 14C dating and SEM (scanning elec-tron microscope) microstructure for charcoal frag-ments contained in Xiaoxigou profile’s cultural layers. The results show that in these two profiles, the high percentages of Picea (more than 20% and 35%, re-spectively) appeared in the stratum of the same pe-riod (2000-1300 a BP), which corresponds to the charcoal fragment’s age of Picea schrenkiana con-tained in Xiaoxigou cultural layers. These results convincingly revealed that during the period of 2000-1300 a BP, the timberline for Picea schrenkiana on the northern slope of Tianshan Mountains in Xinjiang declined by about 330m compared with the present. | ZHANG Yun KONG Zhaochen YAN Shun YANG Zhenjing NI Jian | 2006 | Chinese Science Bulletin2006,51,14: | 9 |
| 6 | The Effect of PCDH15 Gene Variations on the Risk of Noise-induced Hearing Loss in a Chinese Population显示文摘导致噪音的听觉损失(NIHL ) 是在环境、基因的因素之间的相互作用引起的复杂疾病。这研究调查了在 protocadherin 的基因可变性是否联系了 15 (PCDH15 ) 在一张中国人口位于增加的危险性下面到 NIHL 的发展。结果证明与 rs11004085 的 TT 遗传型相比, CT/CC 遗传型与 NIHL 的增加的风险被联系[调整机会比率(或)= 2.64;95% 信心间隔(CI ) :1.14-6.11, P = 0.024 ] 。另外,在 rs11004085 和 rs978842 之间的重要相互作用基因变化和噪音暴露在高级暴露组被观察(P < 0.05 ) 。而且,当与噪音暴露的高水平结合了时,风险 haplotype TAGCC 被观察(P < 0.05 ) 。因此,我们的学习证实在 PCDH15 的基因变化在人修改危险性到 NIHL 开发。 | XU Xiang Rong WANG Jing Jing YANG Qiu Yue JIAO Jie HE Li Hua YU Shan Fa GU Gui Zhen CHEN Guo Shun ZHOU Wen Hui WU Hui LI Yan Hong ZHANG Huan Ling ZHANG Zeng Rui JIN Xian Ning | 2017 | Biomedical and Environmental Sciences2017,30,2: | 9 |
| 7 | Risks faced by donors of right lobe for living donor liver transplantation显示文摘BACKGROUND:Because of the shortage of deceased donors with livers fit for transplantation,living donor liver transplantation(LDLT)is becoming an attractive alternative.Attention should be paid to the donors,especially to those of the right lobe.In this study,we evaluated the risks faced by donors of the right lobe for adult-to-adult LDLT.METHODS:The perioperative data from 105 consecutive living donors of the right lobe performed in West China Hospital from January 2002 to December 2007 were retrospectively studied.Preoperative evaluation included CT,MRCP,and intraoperative cholangiography,showing liver volume,hepatic vasculature and the biliary system.The standard liver volume(SLV)and the ratio of left lobe volume to SLV were calculated.The right lobe grafts were obtained by transecting the liver on the right side of the middle hepatic vein without inflow vascular occlusion,using an ultrasonic dissector.After operation the donors were monitored in the Intensive Care Unit for about three days.Each donor was followed up for at least 6 months.RESULTS:There was no donor mortality.Major complications occurred in 14 donors(13.3%),of whom 3 received conservative treatment,8 required invasive paracentesis,and 3 required further surgery.All donors were recovered well and resumed their previous occupations.CONCLUSIONS:Donors of the right lobe face low risks.The preoperative evaluation,especially evaluation of the volume of the remnant liver,should be exact.During the operation,the patency of the remnant hepatic vasculature and bile duct must be preserved,and the extent of injury to the remnant liver should be limited as much as possible.The detection and treatment of postoperative complications should be diligently performed. | Ran, Shun Wen, Tian-Fu Yan, Lu-Nan Li, Bo Zeng, Yong Chen, Zhe-Yu Zhang, Yu Liao, Zhi-Xue Liang, Guan-Lin Li, Guo Zhang, Xian-Hua | 2009 | Hepatobiliary & Pancreatic Diseases International2009,8,6: | 8 |
| 8 | The gas sensing properties of TiO_2 nanotubes synthesized by hydrothermal method显示文摘在这份报纸, TiO2 nanotubes 被热水的方法在 150 点用 10 mol/L NaOH | Yan Li Wang Shun Tan Jia Wang Zhi Jin Tan Qiu Xia Wu Zheng Jiao Ming Hong Wu | 2011 | Chinese Chemical Letters2011,22,5: | 7 |
| 9 | Water quality variation of mining-subsidence lake during the initial stage: cases study of Zhangji and Guqiao Mines显示文摘 | FAN Ting-yu YAN Jia-ping WANG Shun ZHANG Bing RUAN Shu-xian ZHANG Mei-li LI Shou-qin CHEN Yong-chun LIU Jin | 2012 | Journal of Coal Science & Engineering(China)2012,18,3: | 6 |
| 10 | Two Pyrone Derivatives from Fungus Phellinus Igniarius显示文摘Two new pyrone derivatives phelligridins A 1 and B 2 were isolated from the fruit body of Phellinus igniarius. Their structrues were elucidated as 8, 9-dihydroxy-3-methyl-1H,6H- pyrano[4,3-c][2]benzopyran-1,6-dione and 4-hydroxy-6-(3,4-dihydroxystyryl)-3-methoxycarbon- yl-2-pyrone , respectively, by means of spectral methods, including IR, MS, 1D and 2DNMR spectra. | Shun Yan MO, Yong Chun YANG, Wen Yi He, Jian Gong SHI* Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050 | 2003 | Chinese Chemical Letters2003,14,7: | 6 |
| 11 | Association between Metabolic Syndrome and Carotid Atherosclerosis: A Cross-sectional Study in Northern China显示文摘Objective Increased carotid artery intima-media thickness(CIMT)and carotid plaque as manifestations of carotid atherosclerosis have been used as markers of cardiovascular disease(CVD).The components of metabolic syndrome(Met S)are linked to CVD,but the association between Met S and CVD is controversial.Methods A total of 8,933 Chinese adults aged 40 years or older from 2010 to 2014 were selected from the Jidong and Kailuan communities.Met S was defined by the International Diabetes Federation criteria.CIMT and carotid plaque were measured using color Doppler ultrasound.Logistic regression models were used to assess the association of Met S with carotid plaque and CIMT.Results Met S was found among 3,461(3,461/8,933)participants.The odds ratio and 95%confidence internal(CI)for carotid plaques in participants with Met S was 1.16(1.03-1.30).The risk of carotid plaques increased with the number of Met S components.The average CIMT was higher in participants with Met S(β=0.020,95%CI,0.014-0.027)and in participants with more Met S components.Conclusion Individuals with Met S are at an increased risk for carotid atherosclerosis compared to those without MetS. | ZHOU Ping An ZHANG Chen Huan CHEN Yan Ru LI Dong SONG Dai Yu LIU Hua Min ZHOU Ming Yue SONG Guo Shun CHEN Sheng Yun | 2019 | Biomedical and Environmental Sciences2019,32,12: | 6 |
| 12 | A cross-sectional study on compliance with topical glaucoma medication and its associated socioeconomic burden for a Chinese population显示文摘AIM: To estimate the overall drug compliance for local Chinese glaucoma patients on long-term topical treatment.METHODS: This was a retrospective cross-sectional study.Fifty-seven primary glaucoma patients from the subspecialty clinic of a publicly-funded tertiary care hospital in Hong Kong completed a questionnaire on compliance with topical glaucoma medication,attitude towards glaucoma and therapy and vision related quality of life.Noncompliance was defined as reporting missing more than or equal to 10% of the prescribed topical glaucoma medication during the 2wk immediately prior to the consultation.Relationships between noncompliance and demographics,attitude,disease and treatment status was studied.Cost was estimated with quality of life and direct medical cost involved with noncompliance.Multivariable logistic regression on noncompliance was performed on selected factors.RESULTS: Compliance was calculated as 75%(95% CI: 64%-87%) among 57 subjects(mean age 69 y,female 51%).No statistical significant relationship was established between noncompliance and any single factors or outcomes.Age(P=0.048) and forgetfulness(P=0.064) were found to be marginally significant predictive factors on noncompliance in multivariable logistic regression.Noncompliance might be related(P=0.130) to poorer self-rated vision-associated quality of life.The societal cost of noncompliance was estimated to be over 2510 life-years and US$ 3.7 million territory-wide.CONCLUSION: The compliance of Chinese glaucoma patients in Hong Kong is comparable to other parts in the world,and carries detrimental impacts on individual and societal levels.Age and forgetfulness are two possible independent predictors for noncompliance. | Man-Hin Lui Jason Chun Ho Lam Yi Lee Kwong Tak Siu Wong Pak Long Cheung Sherri Shun Yan Lai Pak Lun Yuen Wai Yiu Lam Ho Yan Chan Yiu Fai Wong Jimmy Shiu Ming Lai Kendrick Co Shih | 2017 | International Journal of Ophthalmology(English edition)2017,10,2: | 5 |
| 13 | The Adverse Effect of the 2-1-1 Regimen for Rabies PEP in Preschool Children显示文摘Post-exposure prophylaxis(PEP) has proved to be the most important measure for rabies prevention and control. There is little information regarding adverse reactions to the Essen and 2-1-1 regimens in preschool children(aged 0-6). We reexamined the outcomes of 1,109 preschool children who were vaccinated using SPEEDA under the Essen regimen between January 2011 and December 2012 and 1,267 preschool children under the 2-1-1 regimen between January 2013 and December 2014. We find that, in preschool children, the febrile reaction after the first 2-dose injection in the 2-1-1 regimen was significantly higher than that induced by the first 1-dose in the Essen procedure. Thus, we recommend that the Essen regimen should still be used for rabies PEP in preschool children. | LIU Shu Qing TAO Xiao Yan YU Peng Cheng JIN Chun Qiu YU Hong Jie CHEN Mei Shun ZHU Wu Yang | 2017 | Biomedical and Environmental Sciences2017,30,5: | 5 |
| 14 | The penetrating depth analysis of Lunar Penetrating Radar onboard Chang'e-3 rover显示文摘Lunar Penetrating Radar(LPR) has successfully been used to acquire a large amount of scientific data during its in-situ detection. The analysis of penetrating depth can help to determine whether the target is within the effective detection range and contribute to distinguishing useful echoes from noise.First, this study introduces two traditional methods, both based on a radar transmission equation, to calculate the penetrating depth. The only difference between the two methods is that the first method adopts system calibration parameters given in the calibration report and the second one uses high-voltage-off radar data. However, some prior knowledge and assumptions are needed in the radar equation and the accuracy of assumptions will directly influence the final results. Therefore, a new method termed the Correlation Coefficient Method(CCM) is provided in this study, which is only based on radar data without any a priori assumptions. The CCM can obtain the penetrating depth according to the different correlation between reflected echoes and noise. To be exact, there is a strong correlation in the useful reflected echoes and a random correlation in the noise between adjacent data traces. In addition, this method can acquire a variable penetrating depth along the profile of the rover, but only one single depth value can be obtained from traditional methods. Through a simulation, the CCM has been verified as an effective method to obtain penetration depth. The comparisons and analysis of the calculation results of these three methods are also implemented in this study. Finally, results show that the ultimate penetrating depth of Channel 1 and the estimated penetrating depth of Channel 2 range from 136.9 m to 165.5 m(ε_r = 6.6) and from 13.0 m to 17.5 m(ε_r = 2.3), respectively. | Shu-Guo Xing Yan Su Jian-Qing Feng Shun Dai Yuan Xiao Chun-Yu Ding Chun-Lai Li | 2017 | Research in Astronomy and Astrophysics2017,17,5: | 4 |
| 15 | A Modified Certainty Coefficient Method(M-CF) for Debris Flow Susceptibility Assessment:A Case Study for the Wenchuan Earthquake Meizoseismal Areas显示文摘In the meizoseismal areas hit by the China Wenchuan earthquake on May 12, 2008, the disasterprone environment has changed dramatically, making the susceptibility assessment of debris flow more complex and uncertain. After the earthquake, debris flow hazards occurred frequently and effective susceptibility assessment of debris flow has become extremely important. Shenxi gully in Du Jiangyan city, located in the meizoseismal areas, was selected as the study area. Based on the research of disaster-prone environment and the main factors controlling debris flow, the susceptibility zonations of debris flow were mapped using factor weight method(FW), certainty coefficient method(CF) and geomorphic information entropy method(GI). Through comparative analysis, the study showed that these three methods underestimated susceptible degree of debris flow when used in the meizoseismal areas of Wenchuan earthquake. In order to solve this problem, this paper developed a modified certainty coefficient method(M-CF) to reflect the impact of rich loose materials on the susceptible degree of debris flow. In the modified method, the distribution and area of loose materials were obtained by field investigations and postearthquake remote sensing image, and four data sets, namely, lithology, elevation, slop and aspect, wereused to calculate the CF values. The result of M-CF method is in agreement with field investigations and the accuracy of the method is satisfied. The method has a wide application to the susceptibility assessment of debris flow in the earthquake stricken areas. | WANG Jun YU Yan YANG Shun LU Gui-hong OU Guo-qiang | 2014 | Journal of Mountain Science2014,11,5: | 4 |
| 16 | A New Flavonol Diglycoside from Pyrrosia petiolosa显示文摘A new flavone diglycoside, named as pyrropetioside A 1 was isolated from Pyrrosiapetiolosa. Its structrue was elucidated as 7-O-[6-O-(α-L-arabifuranosyl)-β-D-glucopyranosyl]-gossypetin by means of chemical and spectroscopic methods including IR, MS, 1D and 2D NMRtechniques. | Yong Chun YANG, Chun YANG, Shun Yan MO, Jian Gong SHIInstitute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050 | 2003 | Chinese Chemical Letters2003,14,9: | 4 |
| 17 | Two Benzyl Dihydroflavones from Phellinus igniarius显示文摘Two new benzyl dihydroflavones phelligrins A and B were isolated from the fruit body of Phellinus igniarius. Their structrues were identified as 5, 7, 4-trihydroxy-6-O-hydroxybenzyl -dihydroflavone and 5, 7, 4-trihydroxy-8-O-hydroxybenzyldihydroflavone, respectively, by means of spectral methods. | Shun Yan MO, Wen Yi HE, Yong Chun YANG, Jian Gong SHI* Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Bejing 100050 | 2003 | Chinese Chemical Letters2003,14,8: | 4 |
| 18 | Functions and clinical significance of mechanical tumor microenvironment:cancer cell sensing,mechanobiology and metastasis显示文摘Dynamic and heterogeneous interaction between tumor cells and the surrounding microenvironment fuels the occurrence,progression,invasion,and metastasis of solid tumors.In this process,the tumormicroenvironment(TME)fractures cellular and matrix architecture normality through biochemical and mechanical means,abetting tumorigenesis and treatment resistance.Tumor cells sense and respond to the strength,direction,and duration of mechanical cues in the TME by various mechanotransduction pathways.However,far less understood is the comprehensive perspective of the functions and mechanisms of mechanotransduction.Due to the great therapeutic difficulties brought by the mechanical changes in the TME,emerging studies have focused on targeting the adverse mechanical factors in the TME to attenuate disease rather than conventionally targeting tumor cells themselves,which has been proven to be a potential therapeutic approach.In this review,we discussed the origins and roles ofmechanical factors in the TME,cell sensing,mechano-biological coupling and signal transduction,in vitro construction of the tumormechanicalmicroenvironment,applications and clinical significance in the TME. | Hanying Zhou Meng Wang Yixi Zhang Qingqing Su Zhengxin Xie Xiangyan Chen Ran Yan Ping Li Tingting Li Xiang Qin Hong Yang ChunhuiWu Fengming You Shun Li Yiyao Liu | 2022 | Cancer Communications2022,42,5: | 3 |
| 19 | The establishment and evaluation of near infrared universal model to determinate the effective ingredient content in pesticide rapidly显示文摘一个近红外线的通用定量分析模型被建立到确定在杀虫剂 EC (hikernalisation ) 由的有效成分内容请(部分最少的广场) 算法,模型预兆的能力被外部检查方法评估。模型在从五个不同公司,和模型决心系数 R2 和 RMSECV (生气确认的根均方差)包含一样的活跃成分的样品之中被建立分别地,是 0.9997 和 0.0223 在预言的价值和严峻的集合样品的化学价值之间的相对错误在2.71%和3.36%之间,它显示方法到确定在由确定的通用模型的杀虫剂 EC 的有效成分内容能遇见 | Yan Mei Xiong Xiang Zhong Song Chang Zhou Chen Hong Ping Lin Guo Tang Yue Huang Jia Duan Shun Geng Min | 2012 | Chinese Chemical Letters2012,23,9: | 3 |
| 20 | A thienopyridine, CB-20, exerts diuretic activity by inhibiting urea transporters显示文摘Urea transporters(UTs)are transmembrane proteins selectively permeable to urea and play an important role in urine concentration.UT-knockout mice exhibit the urea-selective urine-concentrating defect,without affecting electrolyte balance,suggesting that UT-B inhibitors have the potential to be developed as novel diuretics.In this study,we characterized a novel compound 5-ethyl-2-methyl-3-amino-6-methylthieno[2,3-b]pyridine-2,5-dicarboxylate(CB-20)with UT inhibitory activity as novel diuretics with excellent pharmacological properties.This compound was discovered based on high-throughput virtual screening combined with the erythrocyte osmotic lysis assay.Selectivity of UT inhibitors was assayed using transwell chambers.Diuretic activity of the compound was examined in rats and mice using metabolic cages.Pharmacokinetic parameters were detected in rats using LC-MS/MS.Molecular docking was employed to predict the potential binding modes for the CB-20 with human UT-B.This compound dose-dependently inhibited UT-facilitated urea transport with IC50 values at low micromolar levels.It exhibited nearly equal inhibitory activity on both UT-A1 and UT-B.After subcutaneous administration of CB-20,the animals showed polyuria,without electrolyte imbalance and abnormal metabolism.CB-20 possessed a good absorption and rapid clearance in rat plasma.Administration of CB-20 for 5 days did not cause significant morphological abnormality in kidney or liver tissues of rats.Molecular docking showed that CB-20 was positioned near several residues in human UT-B,including Leu364,Val367,and so on.This study provides proof of evidence for the prominent diuretic activity of CB-20 by specifically inhibiting UTs.CB-20 or thienopyridine analogs may be developed as novel diuretics. | Min Li Yan Zhao Shun Zhang Yue Xu Shu-yuan Wang Bo-wen Li Jian-hua Ran Run-tao Li Bao-xue Yang | 2020 | Acta Pharmacologica Sinica2020,41,1: | 3 |