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| 1 | New eolian red clay sequence on the western Chinese Loess Plateau linked to onset of Asian desertification about 25 Ma ago显示文摘The expansion of inland Asia deserts has considerably influenced the environmental, social and economic activities in Asia. Aridification of inland Asia, especially timing of the initiation of Asian desertification, is a contentious topic in paleoclimatology. Late Cenozoic eolian loess-red clay sequences on the Chinese Loess Plateau, which possess abundant paleoclimatic and paleo-environmental information, can be regarded as an indicator of inland Asia desertification. Here we present a detailed magnetostratigraphic investigation of a new red clay sequence about 654 m in Zhuanglang located at the western Chinese Loess Plateau. Sedimentological, geochemical, mineralogical, and quartz morphological lines of evidence show that the red clay is of eolian origin. Magnetostratigraphic correlations indicate that this core sequence spans from 25.6 to 4.8 Ma, and typical eolian red clay appears as early as 25 Ma. This extends the lower limit of the red clay on the Chinese Loess Plateau from the previously thought early Miocene back into the late Oligocene. This new red clay record further implies that the inland Asia desertification was initiated at least by the late Oligocene. This sequence provides a unique high-resolution geological record for understanding the inland Asia desertification process since the late Oligocene. | QIANG XiaoKe AN ZhiSheng SONG YouGui CHANG Hong SUN YouBin LIU WeiGuo AO Hong DONG JiBao FU ChaoFeng WU Feng LU FengYan CAI YanJun ZHOU WeiJian CAO JunJi XU XinWen AI Li | 2011 | Science China Earth Sciences2011，54，1： | 73 |
| 2 | Review of research in internal-wave and internal-tide deposits of China显示文摘Study of internal-wave and internal-tide deposits is a very young research field in deep-water sedimentology. It has been just twenty years since the first example of internal-wave and internal-tide deposits was identified in the stratigraphic record. Since that time, Chinese scholars have made unremitting efforts and gained some significant research achievements in this field. This paper briefly outlines the history and main achievements of research of internal-wave and internal-tide deposits in China, describes depositional charac-teristics, sedimentary successions, types of lithofacies, and depositional models of internal-wave and internal-tide deposits identified mainly from ancient strata, and summarizes the existing problems in this research field. New advances in marine physics should be applied to research of the subject of internal-wave and internal-tide deposition, whereas the sedimentary characteristics of internal-wave and internal-tide deposits may be used to deduce the physical processes of their creation. Flume experiments on internal-wave and internal-tide deposition should also be put in practice as often as possible, so that the mechanisms of internal-wave and internal-tide deposition can be explored. | Gao Zhenzhong He Youbin Li Xiangdong Duan Taizhong | 2013 | Journal of Palaeogeography2013，2，1： | 9 |
| 3 | Application of Avaatech X-ray fluorescence core-scanning in Sr/Ca analysis of speleothems显示文摘Application of X-ray fluorescence core-scanning(XRF-CS) on both marine and lake sediments has achieved remarkable results. However, its application has not been widely extended to the research on speleothems. In this study, we measure the Sr abundance and the Sr/Ca ratios of three stalagmites(two aragonite stalagmites, one calcite stalagmite) using the state-of-the-art fourth-generation Avaatech high-resolution XRF core scanner. Through comparisons among different scan paths and among different scan resolutions, as well as comparisons with inductively coupled plasma optical emission spectrometer(ICP-OES), Itrax XRF, and Artax XRF results, we confirm that the Avaatech XRF core scanner could precisely, quickly, and nondestructively analyze the high-resolution Sr abundance of speleothems. Furthermore, we combine the stalagmite δ^(18)O records to explore the paleoclimatic significance of the measured stalagmite Sr/Ca. | Dong LI Liangcheng TAN Fei GUO Yanjun CAI Youbin SUN Gang XUE Xing CHENG Hong YAN Hai CHENG R.Lawrence EDWARDS Yongli GAO Jessica KELLEY | 2019 | Science China Earth Sciences2019，62，6： | 7 |
| 4 | Effects of Silver Nanoparticles on Soil Microbial Communities and Bacterial Nitrification in Suburban Vegetable Soils显示文摘Silver nanoparticles(AgNPs) are widely used antimicrobial compounds; however, they may pose a threat to non-targeted bacteria in the environment. In this study high-throughput sequencing was used to investigate the effects of different concentrations of AgNPs(10, 50, and 100 mg kg-1) on soil microbial community structure during short-term(7 d) exposure. The amounts of Acidobacteria,Actinobacteria, Cyanobacteria, and Nitrospirae significantly decreased with increasing AgNP concentration; meanwhile, several other phyla(e.g., Proteobacteria and Planctomycetes) increased and dominated. Nitrosomonas europaea, a well-characterized ammoniaoxidizing bacterium, was used to study the sensitivity of bacteria to Ag NPs and ionic silver(Ag^+). Flow cytometry was used to monitor the toxicity of low(1 mg L^(-1)), middle(10 mg L^(-1)), and high concentrations(20 mg L^(-1)) of AgNPs, as well as Ag^+(1 mg L^(-1)) released into the medium from 20 mg L^(-1) concentration of AgNPs, towards N. europaea. After 12 h of exposure, the survival rate of N. europaea treated with 1 mg L^(-1)Ag^+ was significantly lower than those treated with low(1 mg L^(-1)) and middle concentrations(10 mg L^(-1)) of AgNPs, but the survival rate in the treatment with high concentration(20 mg L^(-1)) of AgNPs was much lower. Additionally, necrosis rates were higher in the treatment with 20 mg L^(-1) AgNPs. Electron microscopy showed that Ag+caused serious damage to the cell wall of N. europaea, disintegrated the nucleoids, and condensed next to the cell membrane; however,dissolved Ag^+ is only one of the antibacterial mechanisms of AgNPs. | WANG Juan SHU Kunhui ZHANG Li SI Youbin | 2017 | Pedosphere2017，27，3： | 5 |
| 5 | Ultrasound-guided percutaneous microwave ablationfor small liver cancers adjacent to large vessels:long-term outcomes and strategies显示文摘Objective The aim of the study was to evaluate the long-term efficacy and safety of percutaneous microwave ablation(MWA) for small hepatic cancers adjacent to large vessels and to investigate the treatment strategies.Methods From March 2009 to July 2015,a total of 86 patients with 94 tumors underwent ultrasound(US)-guided percutaneous MWA,with pathologically proven or clinically diagnosed liver cancers measuring ≤ 3 cm in diameter and located ≤ 10 mm from a major vessel(n = 94).Regular follow-up after MWA was performed to assess treatment efficacy and perioperative complications.Results The complete ablation rate at 1 month after MWA was 93.3%(84/90).The 6-,9-,12-,24-,36-,48-,60-,72-,and 84-month local recurrence rates were 2.4%,2.4%,3.7%,6.6%,8.4%,8.4%,8.4%,8.4%,and 8.4%,respectively.There were no major complications.The perioperative special complication rate was 5.32%(5/94),including 3 cases of moderate liver function damage and 2 cases of limited sub-capsular hematoma.Conclusion Percutaneous MWA for small hepatic cancers adjacent to large vessels is feasible,effective,and safe with an acceptable rate of complications.The key point is to strictly follow operative indications and adopt proper treatment strategies. | Ruobing Liu Kaiyan Li Hongchang Luo Wei Zhang Tingting Zhang Meng Gao Wenhui Zha Xinwu Cui Youbin Deng | 2017 | Oncology and Translational Medicine2017，3，2： | 3 |
| 6 | Oscillation of first order neutral delay differential equations显示文摘 | LI Yumei WANG Youbin | | 0，，： | 1 |
| 7 | Apoptosis Induced by Caudatin in Human Hepatoma Cell Line SMMC7721 显示文摘 | Peng Yunru Li Youbin Liu Xiaodong | 2008 | Chin J Nat Med2008，6，3： | 1 |
| 8 | Novel Treatment for Chylothorax After Esophagectomy With 50% Glucose Pleurodesis显示文摘 | Yulong Chen Changyuan Li Lijun Xu Hongjing Lin Youbin Cui Jean Deslauriers | 2010 | Annals of Vascular Surgery2010，，5： | 1 |
| 9 | Effects of stromal cell derived factor-1 and CXCR4 on the promotionof neovascularization by hyperbaric oxygen treatment in skin flaps显示文摘 | Xuehua Liu Fang Liang Jing Yang Zhuo Li Xiaomin Hou Youbin Wang Chunjin Gao | 2013 | Molecular Medicine Reports2013，，4： | 1 |
| 10 | Paleoeneir- onemnt change in the middle Okinawa Trough since the last deglaciation: Evidence from the sedimentation rate and plank- tonic foraminiferal record 显示文摘 | Xiang Rong Sun Youbin Li Tiegang | 2007 | Palaeogeography Palaeochi- natology Palaeoecology2007，243，34： | 1 |
| 11 | Nd and Sr isotopic characteristics of Chinese deserts: Implications for the provenances of Asian dust显示文摘 | Jun Chen Gaojun Li Jiedong Yang Wenbo Rao Huayu Lu William Balsam Youbin Sun Junfeng Ji | 2007 | Geochimica et Cosmochimica Acta2007，，15： | 1 |
| 12 | New starch capsules with antistatic,anti-wear and superlubricity properties显示文摘Adsorption of drug powder is caused by triboelectrification on the surface of starch capsule during filling process.Furthermore,high wear rate and poor water lubricity also hinder the further practical applications of traditional starch capsule.To solve these problems,a glycerol-modified starch capsule with perfect anti-triboelec-trification and enhanced lubrication performance was fabricated.Hydrogen bond between glycerol and starch molecules could reduce the bound water content on the capsule surface and thus realizes anti-triboelectrification.By adding glycerol,a three-tier structure composed of starch-glycerol-water is formed through hydrogen bonding on the surface of the starch film,which has been proven to be favorable for lubrication performance.When 5% glycerol is added,the short-circuit current(I_(sc))of starch-based triboelectric nanogenerator(TENG)is reduced by 86%,and the wear volume of the starch film is reduced by 89%.Underwater lubrication condition,the lubrication performance of the starch-glycerol film can reach the super lubricated level with a friction coefficient of about 0.005.This work provides a new route to obtain modified starch capsules with improved anti-triboelectrification property,reduced wear rate and superlubricity property. | Nannan WANG Youbin ZHENG Yange FENG Liqiang ZHANG Min FENG Xiaojuan LI Daoai WANG | 2021 | Frontiers of Materials Science2021，15，2： | 0 |
| 13 | Assessment of Effect of Angiotensin Ⅱ Receptor Antagonist Losartan on Aortic Distensibility in Patients With Essential Hypertension by Echocardiography显示文摘Summary: The effects of angiotensin Ⅱ receptor antagonist losartan on elastic properties of aorta in patients with mild to moderate essential hypertension were assessed. The ascending aortic distensibility in 26 patients (48±3 years) with mild to moderate essential hypertension before and after 12 weeks of treatment with losartan (50 mg/day) was evaluated by using two-dimensional echocardiography. M-mode measurements of aortic systolic (D s) and diastolic diameter (D d) were taken at a level approximately 3 cm above the aortic valve. Simultaneously, cuff brachial artery systolic (SBP) and diastolic(DBP) pressures were measured. Aortic pressure-strain elastic modulus (E p) was calculated as D d×(SBP-DBP)/(D s-D d)×1333 and stiffness index beta (β) was defined as D d×Ln (SBP/DBP)/(D s-D d). Blood pressure significantly decreased from 148±13/95±9 mmHg to 138±12/88±8 mmHg (systolic blood pressure, P=0.001; diastolic blood pressure, P=0.003). There was no significant difference in pulse pressure before and after treatment with losartan (53±10 mmHg vs 50±7 mmHg). The distensibility of ascending aorta increased significantly as showed by the significant decrease in pressure-strain elastic modulus from 4.42±5.79×10 6 dynes/cm 2 to 1.99±1.49×10 6 dynes/cm 2 (P=0.02) and stiffness index beta from 27.4±32.9 to 13.3±9.9 (P=0.02). Although there was a weak correlation between the percent changes in pressure-strain elastic modulus and stiffness index beta and that in diastolic blood pressure after losartan treatment(r=0.40, P=0.04 and r=0.55, P=0.004, respectively), no correlation was found between the percent changes in pressure-strain elastic modulus and stiffness index beta and that in systolic blood pressure (r=0.04, P=0.8 and r=0.24, P=0.2, respectively). Our study demonstrated that angiotensin Ⅱ receptor antagonist losartan has a beneficial effect on aortic distensibility in patients with mild to moderate essential hypertension and this effect is partly independent of blood pressure reduction. | YANG Haoyi(杨好意) DENG Youbin(邓又斌) LI Chunlei(黎春蕾) BI Xiaojun(毕小军) PAN Min(潘敏) CHANGQing(常青) | 2002 | Journal of Huazhong University of Science and Technology(Medical Sciences)2002，22，2： | 0 |
| 14 | Dancing Ping-Pong Promotes Global Collaboration——At the Sports Economy and International Regional Cooperation Forum for the Belt and Road Initiative in 2018显示文摘Sichuan is the strongest province in western China, and Chengdu is the first stop of the Silk Road and the Yangtze River Economic Zone. Qingbaijiang,the inception point of the Chengdu-Europe express railway, is an important source of artifacts from the ancient Sichuan civilization, and Sichuan province, the land of abundance, is the cradle and base of ping-pong. Chengdu has been connected to | Li Houqiang Chen Youbin | 2018 | Contemporary Social Sciences2018，3，5： | 0 |
| 15 | In vivo optical bioimaging by using Nd-doped LaF3 luminescent nanorods in the second near-infrared window显示文摘Fluorescent imaging in the second near-infrared(NIR-Ⅱ,1000-1700 nm)region has attracted enormous research interest due to its advantages of unprecedentedly improved imaging sensitivity and spatial resolution.Herein,high quality NIR-Ⅱemissive LaF3:Nd3+nanorods(NRs)with hexagonal phase structure and controlled size were synthesized by a hydrothermal method.And the Nd^3+doping induced NIRⅡluminescent intensity evolution was studied,In vivo NIR-Ⅱbioimaging and real-time tracking reveal that these LaF3:Nd^3+NRs are mainly accumulated in liver and spleen.Moreover,in vivo toxicity assessment demonstrates that LaF3:Nd^3+NRs feature low biotoxicity and good biocompatibility in living animals.Therefore,the NIR-Ⅱemitting hexagonal phase LaF3 NRs with controlled size are promising probes for optical bioimaging. | Shouyan Cheng Liu Liu Qiuhua Yang Youbin Li Songjun Zeng | 2019 | Journal of Rare Earths2019，37，9： | 0 |
| 16 | Independent and Interactive Effects of Environmental Conditions on Aerosolized Surrogate SARS-CoV-2-Beijing,China,June to September 2020显示文摘Summary What is already known about this topic?Environmental factors such as temperature and humidity play important roles in the transmission of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)via droplets/aerosols.What is added by this report?Higher relative humidity(61%–80%),longer spreading time(120 min),and greater dispersal distance(1 m)significantly reduced SARS-CoV-2 pseudovirus loads.There was an interaction effect between relative humidity and spreading time.What are the implications for public health practice?The findings contribute to our understanding of the impact of environmental factors on the transmission of SARS-CoV-2 via airborne droplets/aerosols. | Yixin Mao Yueyun Luo Wenda Zhang Pei Ding Xia Li Fuchang Deng Kaiqiang Xu Min Hou Cheng Ding Youbin Wang Zhaomin Dong Raina MacIntyre Xiaoyuan Yao Song Tang Dongqun Xu | 2022 | China CDC weekly2022，4，26： | 0 |
| 17 | Impacts of silver nanoparticles on enzymatic activities,nitrifying bacteria,and nitrogen transformation in soil amended with ammonium and nitrate显示文摘Silver nanoparticles(AgNPs)are effective antimicrobial compounds that are used in a myriad of applications.Soil microorganisms play crucial roles in nitrogen cycling,but there is a lack of comprehensive understanding of the effects of Ag NPs on enzymatic activity in the nitrogen cycle,nitrifying bacteria,and nitrogen transformation in soil.Herein,enzyme activities were determined following the addition of different forms of nitrogen,ammonium nitrogen((NH_(4))_(2)SO_(4)),nitrate nitrogen(KNO_(3)),and amide nitrogen(urea,CO(NH_(2))_(2))at 200 mg N kg^(-1),into the soil amended with AgNPs at 0,10,50,and 100 mg kg^(-1).After 7 d of incubation with 10 mg kg^(-1) Ag NPs,the activities of urease,nitrite reductase(NiR),nitrate reductase(NaR),and hydroxylamine reductase(HyR)were reduced by 12.5%,25.0%,12.2%,and 24.2%,respectively.Of particular note,more than 53.5%,61.7%,and 34.7% of Na R,NiR,and HyR activities,respectively,were inhibited at 100 mg kg^(-1) Ag NPs.The abundance(most probable number)of ammonia-and nitrite-oxidizing bacteria(AOB and NOB,respectively)was measured using real-time quantitative polymerase chain reaction(qPCR)and the Cochran method.The abundance of AOB and NOB decreased when Ag NPs were present in the soil.The NH_(4)NO_(3) amendment increased copy numbers of bacterial and archaeal amo A nitrification functional genes,by 38.3% and 12.4%,respectively,but AgNPs at 50 mg kg^(-1) decreased these values by 70% and 56.4%,respectively.The results of ^(15)N enrichment(atom% excess)of NH_(4)^(+) and NO_(3)^(-) experiments illustrated the influence of AgNPs on soil nitrogen transformation.According to the ^(15)N atom% excess detected,the conversion of ^(15)N-labeled NH_(4)^(+) to NO_(3)^(-) was significantly inhibited by the different levels of Ag NPs in soil.The reduced gross nitrification rate further confirmed this finding.Overall,this study revealed considerable evidence that AgNPs inhibited nitrogen cycle enzyme activity,the number of nitrifying bacteria,the abundance of the amo A gene,and the gross nitrification rate.Silver nanoparticles inhibited nitrogen transformation,and the rate of nitrification was also negatively correlated with AgNP levels. | Xiaohong LIU Juan WANG Lingli WU Li ZHANG Youbin SI | 2021 | Pedosphere2021，31，6： | 0 |
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