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1Petrogenesis of Late Cretaceous Jiangla'angzong I-Type Granite in Central Lhasa Terrane, Tibet, China: Constraints from Whole-Rock Geochemistry, Zircon U-Pb Geochronology, and Sr-Nd-Pb-Hf Isotopes显示文摘The Jiangla'angzong granite in the northern part of the Central Lhasa Terrane is composed of syenogranite and adamellite. LA-ICP-MS zircon U-Pb analyses suggest that syenogranite has a weighted mean ^(206) Pb/^(238) U age of 86±1 Ma(mean square weighted deviation=0.37), which is in accordance with the muscovite Ar-Ar age(85±1 Ma) of Cu-Au ore-bearing skarns and the zircon U-Pb age(84±1 Ma) of adamellite. This suggests that the Jiangla'angzong magmatism and Cu–Au mineralization events took place during the Late Cretaceous. The granite contains hornblende, biotite, and pyroxene, and does not contain Al-bearing minerals, such as muscovite, cordierite, and garnet. It has high contents of SiO_2(65.10–70.91 wt%), K_2O(3.44–5.17 wt%), and total K_2O+Na_2O(7.13–8.15 wt%), and moderate contents of A_(12)O_3(14.14–16.45 wt%) and CaO(2.33–4.11 wt%), with a Reitman index(σ43) of 2.18 to 2.33, and A/CNK values of 0.88 to 1.02. The P_2O_5 contents show a negative correlation with SiO_2, whereas Pb contents show a positive correlation with SiO_2. Th and Y contents are relatively low and show a negative correlation with the Rb contents. These characteristics suggest that the Jiangla'angzong granite is a high K calc–alkaline metaluminous I–type granite. It is enriched in light rare earth elements(LREE) and large ion lithofile elements(LILE), and depleted in heavy rare earth elements(HREE) and high field strength elements(HFSE), with LREE/HREE ratios of 11.7 to 18.1. The granite has negative Eu anomalies of 0.58 to 0.94 without obvious Ce anomalies(δCe=1.00–1.04). The relatively low initial 87 Sr/86 Sr ratios of 0.7106 to 0.7179, positive εHf(t) values of 1.0 to 4.1, and two-stage Hf model ages(TDM2) ranging from 889 Ma to 1082 Ma, These geochemical features indicate that the granite derived from a juvenile crust. The(^(143) Nd/^(144) Nd)_t values from the Jiangla'angzong granite range from 0.5121 to 0.5123, its εNd(t) values range from-10.17 to-6.10, its(^(206) Pb/^(204) Pb)_t values range from 18.683 to 18.746, its(^(207) Pb/^(204) Pb)_t values range from 15.695 to 15.700, and its(^(208) Pb/^(204) Pb)_t values range from 39.012 to 39.071. These data indicate that the granite was formed by melting of the upper crust with the addition of some mantle materials. We propose that the Jiangla'angzong granite was formed during the postcollision extension of the Qiangtang and Lhasa terranes.LIU Hong LI Guangming HUANG Hanxiao CAO Huawen YUAN Qian LI Yingxu OUYANG Yuan LAN Shuangshuang LU Menghong YAN Guoqiang 2018Acta Geologica Sinica(English Edition)2018,92,4:20
2Accelerated carbonation and leaching behavior of the slag from iron and steel making industry显示文摘Ground granulated blast furnace slag (GGBFS) and steelmaking slag have been used as a raw material for cement production or as an aggregate to make concrete, which contribute aluminum, calcium, iron, and silicon oxides. The suitability of the slag for a particular application depends on its reactivity, cost, availability, and its influence on the properties of the resulting concrete. For the interest of durability studying of concrete in the presence of slag, the accelerated carbonation products and leaching behavior of the slag and Portland cement (PC) were studied. The experimental results confirmed that the slag was more resistant to carbonation compared to PC. The carbonation degree of GGBFS reduced by 17.74/; and the carbonation degrees of steelmaking slags reduced by 9.51/-11.94/. Carbonation neutralized the alkaline nature of the hydrated pastes and gave rise to the redox potential of the leachate slightly (30-77 mV). The carbonation also increased the release of most of the elements presented, except for calcium, to the aqueous environment. It is concluded that blend cements (PC plus slag) have economical advantages and better durability compared to PC.Quanyuan Chen Johnson Lingyun Zhu Menghong Yuan Hills 2007Journal of University of Science and Technology Beijing2007,14,4:5
3Spatial modulation of nanopattern dimensions by combining interference lithography and grayscale-patterned secondary exposure显示文摘Functional nanostructures are exploited for a variety of cutting-edge fields including plasmonics,metasurfaces,and biosensors,just to name a few.Some applications require nanostructures with uniform feature sizes while others rely on spatially varying morphologies.However,fine manipulation of the feature size over a large area remains a substantial challenge because mainstream approaches to precise nanopatterning are based on low-throughput pixel-by-pixel processing,such as those utilizing focused beams of photons,electrons,or ions.In this work,we provide a solution toward wafer-scale,arbitrary modulation of feature size distribution by introducing a lithographic portfolio combining interference lithography(IL)and grayscale-patterned secondary exposure(SE).Employed after the high-throughput IL,a SE with patterned intensity distribution spatially modulates the dimensions of photoresist nanostructures.Based on this approach,we successfully fabricated 4-inch wafer-scale nanogratings with uniform linewidths of<5%variation,using grayscale-patterned SE to compensate for the linewidth difference caused by the Gaussian distribution of the laser beams in the IL.Besides,we also demonstrated a wafer-scale structural color painting by spatially modulating the filling ratio to achieve gradient grayscale color using SE.Zhuofei Gan Hongtao Feng Liyang Chen Siyi Min Chuwei Liang Menghong Xu Zijie Jiang Zhao Sun Chuying Sun Dehu Cui Wen-Di Li 2022Light(Science & Applications)2022,11,5:3
4Ultrasound-induced biophysical effects in controlled drug delivery显示文摘Ultrasound is widely used in biomedical engineering and has applications in conventional diagnosis and drug delivery.Recent advances in ultrasound-induced drug delivery have been summarized previously in several reviews that have primarily focused on the fabrication of drug delivery carriers.This review discusses the mechanisms underlying ultrasound-induced drug delivery and factors affecting delivery efficiency,including the characteristics of drug delivery carriers and ultrasound parameters.Firstly,biophysical effects induced by ultrasound,namely thermal effects,cavitation effects,and acoustic radiation forces,are illustrated.Secondly,the use of these biophysical effects to enhance drug delivery by affecting drug carriers and corresponding tissues is clarified in detail.Thirdly,recent advances in ultrasound-triggered drug delivery are detailed.Safety issues and optimization strategies to improve therapeutic outcomes and reduce side effects are summarized.Finally,current progress and future directions are discussed.Lulu Zhang Zhuohua Lin Lan Zeng Fan Zhang Lihong Sun Suhui Sun Ping Wang Menghong Xu Jinxia Zhang Xiaolong Liang Huiyu Ge 2022Science China(Life Sciences)2022,65,5:2
5Strong Seedlings of Improved Varieties and High-efficiency Cultivation of Artificial Forests Promotes the Early Realization of'Carbon Neutrality'显示文摘China is striving to achieve'carbon dioxide peaking'in 2030 and'carbon neutrality'in 2060.In addition to optimizing and upgrading the industrial structure and increasing industrial emission reduction,afforestation is an important way to increase forest carbon sinks and achieve carbon dioxide peaking and carbon neutrality.Improved seedlings are significantly better than general seedlings in terms of afforestation adaptability,growth and stress resistance.The use of improved varieties for afforestation can improve the quality of afforestation from the source.Although the growth cycle of economical tree species is short,and the carbon storage does not increase after directional cultivation,they significantly improve the quality and yield,and indirectly reduce carbon emissions compared with ordinary seedlings.Therefore,in agricultural and forestry production,the transformation and utilization efficiency of improved varieties should be improved and the planting structure should be optimized to improve the quality and efficiency and significantly improve the yield and carbon storage,and the management of plantations should be strengthened to help achieve the goal of'carbon neutrality'as soon as possible.This paper analyzed the current situation of improved varieties and plantation management in China,and put forward corresponding countermeasures.Menghong HU Jiying LI Man SUN 2022Agricultural Biotechnology2022,11,4:2
6Studies on chemical compositions of cortex of Broussonetia papyrifera 显示文摘LI Zhi min CHEN Ji jun YAN Menghong 2010Medicinal Plant2010,1,4:1
7Periglaucines A- D, anti-HBV and-HIV-1 alkaloids from Pericampylus glaucus 显示文摘Yan Menghong Cheng Pi Jiang Zhiyong 2008J Nat Prod2008,71,5:1
8Allelopathic Effects of Cedrus deodara Needle Extracts on Seed Germination and Early Growth of Three Turfgrasses显示文摘[Objectives]This study was conducted to provide reference for plant landscaping,optimization of planting structure and rational allocation of species in Cedrus deodara gardens.[Methods]With three common garden plants in northern China,Trifolium repens L.,Poa pratensis L.and Trifolium pratense L.,as receptors,the effects of four concentrations(0.025,0.05,0.075 and 0.10 g/ml)of C.deodara needle extract on seed germination and early seedling growth of the three turfgrasses were studied by the Petri dish filter paper method,using a clear water treatment(0 g/ml)as control check(CK).Data were subjected to analysis of variance(ANOVA)and multiple comparisons(Duncan)using SPSS16.0.[Results]Different concentrations of C.deodara needle extract had significant inhibitory effects on seed germination,radicle and seedling height growth of T.repens,T.pratense and P.pratensis(P<0.05),and the inhibitory effects increased with the increase of concentration.When the concentration reached 0.075 g/ml,seed germination and seedling growth of T.repens stopped,and radicle and seedling growth of T.pratense and P.pratensis also stopped.When the concentration was equal to 0.10 g/ml,germination of T.pratense and P.pratensis seeds was inhibited,and the absolute values of allelopathic index was the largest,that is,the inhibitory effects were the largest.And with the increase of concentration,the absolute value of synthetical allelopathic index also increased.The extract of C.deodara needles contained main allelochemicals leading to the scarcity of understory vegetation.[Conclusions]This study provides a theoretical basis for reasonable garden plant configuration during C.deodara greening and garden landscaping.Menghong HU Xun LYU Man SUN Baoquan ZHANG Yuan LIU 2022Agricultural Biotechnology2022,11,1:1
9Targeting the Neddylation Pathway to Suppress the Growth of Prostate Cancer Cells: Therapeutic Implication for the Men’s Cancer显示文摘Xiaofang Wang Lihui Li Yupei Liang Chunjie Li Hu Zhao Dingwei Ye Menghong Sun Lak Shin Jeong Yan Feng Shen Fu Lijun Jia Xiaomao Guo Zhen Chen 2014BioMed Research International2014,,:1
10Replacement of fish meal by rendered animal protein ingredients with lysine and methionine supplementation to practical diets for gibel carp, Carassius auratus gibelio显示文摘Menghong H Youji W Qian W 2008Aquaculture2008,275,:1
11Toxic effects of nano-TiO_(2)in bivalves——A synthesis of meta-analysis and bibliometric analysis显示文摘Since the beginning of the 21 st century,the increasing production and application of nano-TiO_(2)in consumer products have inevitably led to its release into aquatic systems and therefore caused the exposure of aquatic organisms,resulting in growing environmental concerns.However,the safety of nano-TiO_(2)in aquatic environments has not been systematically assessed,especially in coastal and estuary waters where a large number of filterfeeding animals live.Bivalves are considered around the world to be a unique target group for nanoparticle toxicity,and numerous studies have been conducted to test the toxic effects of nano-TiO_(2)on bivalves.The aim of this review was to systematically summarize and analyze published data concerning the toxicological effects of nano-TiO_(2)in bivalves.In particular,the toxicity of nano-TiO_(2)to the antioxidant system and cell physiology was subjected to meta-analysis to reveal the mechanism of the toxicological effects of nano-TiO_(2)and the factors affecting its toxicological effects.To reveal the cooperation,hot keywords and cocitations in this field,bibliometric analysis was conducted,and the results showed that the toxicological molecular mechanisms of nano-TiO_(2)and the combined effects of nano-TiO_(2)and other environmental factors are two major hot spots.Finally,some perspectives and insights were provided in this review for future research on nano-TiO_(2)toxicology in bivalves.Zhuoqing Li Menghong Hu Hanting Song Daohui Lin Youji Wang 2021Journal of Environmental Sciences2021,33,6:1
12Therapeutic effects of neuregulin-1 gene transduction in rats with myocardial infarction显示文摘Jian Xiao Bingong Li Zeqi Zheng Menghong Wang Jingtian Peng Yong Li Zhe Li 2012Coronary Artery Disease2012,,7:1
13Effects of the timing of initial feeding on growth and survival of loach ( Misgurnus anguillicaudatus ) larvae显示文摘Youji Wang Menghong Hu Weimin Wang S. G. Cheung P. K. S. Shin Ling Cao 2010Aquaculture International2010,,2:1
14Number of Negative Lymph Nodes is Associated with Survival in Thoracic Esophageal Squamous Cell Carcinoma Patients Undergoing Three-Field Lymphadenectomy显示文摘Zhengfei Zhu Haiquan Chen Weiwei Yu Xiaolong Fu Jiaqing Xiang Hecheng Li Yawei Zhang Menghong Sun Qiao Wei Weixin Zhao Kuaile Zhao 2014Annals of Surgical Oncology2014,,9:1
15ErbB2 increases vascular endothelial growth factor protein synthesis via activa- tion of mammaliam target of rapamycin/pTOS6K leading to in- creased angiogenesis and spontaneous metastasis of human breast cancer cells显示文摘Kristine SK Shannon LW Menghong S 2006Cancer Res2006,66,4:1
16Study on the permselectivity of ion exchange membrane显示文摘Ion exchange membranes with high permselectivity (the character of separating cations from anions or anions from cations) and high selectivity (the character of separating cations or anions of different valencies) are important for electrodialysis process. The Donnan equilibrium theory, based on the equilibrium of ions and no electric field, can not exactly explain the permselectivity of ion exchange membrane for ED process, since it is impossible to set up a ion exchange equilibrium between membrane and solution and to neglect the influence of electrical driving force on ions during ED process. A novel model named 'anti-electric potential ' is established to interpret the permselectivity of ion exchange membrane, according to the determination of electric potential between membranes and the variation of elements content in solutions and membranes. The results of experiment prove that the 'anti-electric potential' really exists within membranes. As for the selectivity, the results reveal that electric potential and hydration energy have great influence on the concentration and mobility of ions in membranes.MENGHong WANGSanfan2002Rare Metals2002,21,4:1
17Targeted drug delivery strategies for the treatment of rheumatoid arthritis显示文摘A chronic autoimmune disease named rheumatoid arthritis(RA)is characterized mainly by synovitis,which has high morbidity,disability and mortality rates.In addition,the aetiology and pathogenesis of RA have not been fully determined.RA is usually accompanied by persistent arthritic pain,swelling,stiffness,and functional disorders;in severe cases,it may result in cardiovascular,pulmonary,psychological and skeletal diseases(Scott et al.,2010).Jinxia Zhang Ling Jiang Lihong Sun Ping Wang Suhui Sun Menghong Xu Lulu zhang Shumin Wang Xiaolong Liang Ligang Cui 2021Science China(Life Sciences)2021,64,7:0
18Bioinspired Andrias davidianus-Derived wound dressings for localized drug-elution显示文摘Local drug delivery has received increasing attention in recent years.However,the therapeutic efficacy of local delivery of drugs is still limited under certain scenarios,such as in the oral cavity or in wound beds after resection of tumors.In this study,we introduce a bioinspired adhesive hydrogel derived from the skin secretions of Andrias davidianus(SSAD)as a wound dressing for localized drug elution.The hydrogel was loaded with aminoguanidine or doxorubicin,and its controlled drug release and healing-promoting properties were verified in a diabetic rat palatal mucosal defect model and a C57BL/6 mouse melanoma-bearing model,respectively.The results showed that SSAD hydrogels with different pore sizes could release drugs in a controllable manner and accelerate wound healing.Transcriptome analyses of the palatal mucosa suggested that SSAD could significantly upregulate pathways linked to cell adhesion and extracellular matrix deposition and had the ability to recruit keratinocyte stem cells to defect sites.Taken together,these findings indicate that property-controllable SSAD hydrogels could be a promising biofunctional wound dressing for local drug delivery and promotion of wound healing.Xiang Liu Xiang Mao Guo Ye Menghong Wang Ke Xue Yan Zhang Hongmei Zhang Xiaoqiao Ning Man Zhao Jinlin Song Yu Shrike Zhang Ximu Zhang 2022Bioactive Materials2022,7,9:0
19Effect of Probiotics on Juvenile Tachypleus tridentatus Gut Microbiota显示文摘The population of tri-spine horseshoe crabs(HSCs)Tachypleus tridentatus has sharply decreased in recent decades.Domestication and manual releasing are now used to recover it.In order to accelerate the growth of T.tridentatus in indoor environment,in this study,gut microbiota of 2nd instar T.tridentatus was supposed to be improved by putting probiotics in water environment and thus promoted the health and growth of the host.Using 16S rRNA sequencing of gut samples,we examined the intestinal microbiome of juvenile HSCs and studied the effect of probiotics.Results showed that there was no significant difference between groups fed with high and low concentrations(1×10^(7),1×10^(12)CFU mL^(−1))of Bacillus subtilis and high concentration(1×10^(12)CFU mL^(−1))of Lactobacillus,and no significant difference compared with the control group,but the diversity of Lactobacillus group with low concentration(1×10^(7)CFU mL^(−1))was significantly higher than those of other groups.Microbial-mediated functions predicted by PICRUSt showed that‘Cellular Processes’,‘Metabolism’and‘Organismal Systems’pathways significantly increased in groups of Bacillus subtilis and Lactobacillus group with low concentration.The results showed that two types of probiotics with different concentrations have other effects on the structure,richness and function of intestinal microbes.By searching the literature and conducting pre-experiments,we forecasted the short time of breeding under the probiotic environment may not have much effect.The present study for the first time investigated the impact of probiotics on gut microbiota of juvenile HSCs and found them may benefit for the growth and health of HSCs.XIONG Kai MIAO Fengze WAIHO Khor LIU Ximei FANG James K.H. HE Jinfeng HU Menghong WANG Youji 2022Journal of Ocean University of China2022,21,3:0
20Characteristics of colistin-resistant Escherichia coli from pig farms in Central China显示文摘The emergence and dissemination of colistin resistance in Enterobacterioceae mediated by plasmid-borne mcr genes in recent years now pose a threat to public health.In this study,we isolated and characterized colistin-resistant and for mcr-positive£coli from pig farms in Central China.Between 2018 and 2019,594 samples were collected and recovered 445 E.coli isolates.Among them,33 with colistin resistance phenotypes and 37 that were positive for mcr genes were identified,including 34 positive for mcr-1,one positive for mcr-3,and two positive for both mcr-1 and mcr-3.An insertion of nine bases('CTGGATACG')into mcr-7 in four mcr-positive isolates led to gene dysfunction,and therefore did not confer the colistin resistance phenotype.Antimicrobial susceptibility testing revealed that 37 mcr-positive isolates showed severe drug resistance profiles,as 50% of them were resistant to 20 types of antibiotics.Multilocus sequence typing revealed a heterogeneous group of sequence types in mcr-positive isolates,among which ST10(5/37),ST156(5/37),and 5T617(4/37)were the predominant types.Plasmid conjugation assays showed that mcr-carrying plasmids of 25 mcr-positive isolates were conjugated with£coli recipient,with conjugation frequencies ranging from 1.7 × 10^(-6) to 4.1 × 10^(-3) per recipient.Conjugation of these mcr genes conferred a colistin resistance phenotype upon the recipient bacterium.PCR typing of plasmids harbored in the 25 transconjugants determined six types of plasmid replicons,including lncX4(14/25),FrepB(4/25),Incl2(3/25),lncHI2(2/25),FIB(1/25),and Inch(1/25).This study contributes to the current understanding of antibiotic resistance and molecular characteristics of colistin-resistant£coli in pig farms.Zhong Peng Xiaoxue Zhang Xiaosong Li Zizhe Hu Zugang Li Chaoying Jia Menghong Dai Chen Tan Huanchun Chen Xiangru Wang 2021Animal Diseases2021,1,2:0
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