Advanced search    

Search: authors:"Jun Xu"

223 papers found.
Use AND, OR, NOT, +word, -word, "long phrase", (parentheses) to fine-tune your search.

A Super Energy Mitigation Nanostructure at High Impact Speed Based on Buckyball System

The energy mitigation properties of buckyballs are investigated using molecular dynamics (MD) simulations. A one dimensional buckyball long chain is employed as a unit cell of granular fullerene particles. Two types of buckyballs i.e. C60 and C720 with recoverable and non-recoverable behaviors are chosen respectively. For C60 whose deformation is relatively small, a dissipative...

A broad-range survey of ticks from livestock in Northern Xinjiang: changes in tick distribution and the isolation of Borrelia burgdorferi sensu stricto

Background Borreliosis is highly prevalent in Xinjiang Uygur Autonomous Region, China. However, little is known about the presence of Borrelia pathogens in tick species in this region, in addition Borrelia pathogens have not been isolated from domestic animals. Methods We collected adult ticks from domestic animals at 19 sampling sites in 14 counties in northern Xinjiang from...

A granular computing method for nonlinear convection-diffusion equation

This paper introduces a method of solving nonlinear convection-diffusion equation (NCDE), based on the combination of granular computing (GrC) and characteristics finite element method (CFEM). The key idea of the proposed method (denoted as GrC-CFEM) is to reconstruct the solution from coarse-grained layer to fine-grained layer. It first gets the nonlinear solution on the coarse...

A retrospective study of microscopic polyangiitis patients presenting with pulmonary fibrosis in China

Zuo jun Xu 1 0 1 Shuaifuyuan Street, Beijing , Dongcheng District 100730 , China 1 Department of Respiratory Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking

A simplified fractional order impedance model and parameter identification method for lithium-ion batteries

, 2 Engineering Research Center of Tribology and Material Protection of Ministry of Education, Henan University of Science and Technology , Luoyang, Henan , China 2 Editor: Jun Xu, Beihang University

Activation of phosphatidylinositol 3-kinase/AKT/snail signaling pathway contributes to epithelial-mesenchymal transition-induced multi-drug resistance to sorafenib in hepatocellular carcinoma cells

English-language editing. Author Contributions Conceptualization: Bo Zhai, Jun Xu. Data curation: Weihua Sun, Hao Cheng. Formal analysis: Jiejie Dong, Jun Xu. Funding acquisition: Bo Zhai, Fengli Hu ... , Jun Xu. Investigation: Jiejie Dong, Bo Zhai, Weihua Sun, Fengli Hu, Hao Cheng. Methodology: Jiejie Dong, Weihua Sun. 13 / 16 Project administration: Jiejie Dong, Bo Zhai, Weihua Sun, Jun Xu. Resources

Adaptation to water level variation: Responses of a floating-leaved macrophyte Nymphoides peltata to terrestrial habitats

A straightforward experimental approach was carried out to study the adaptation responses of a typical floating-leaved aquatic plant Nymphoides peltata to changes in water availability. N. peltata grown in terrestrial habitat was approximately 88.77% lower in total biomass, 62.75% higher in root biomass allocation, 80.9% higher in root-shoot ratio, and 54.5% longer in leaf...

Adaptation to water level variation: Responses of a floating-leaved macrophyte Nymphoides peltata to terrestrial habitats

A straightforward experimental approach was carried out to study the adaptation responses of a typical floating-leaved aquatic plant Nymphoides peltata to changes in water availability. N. peltata grown in terrestrial habitat was approximately 88.77% lower in total biomass, 62.75% higher in root biomass allocation, 80.9% higher in root-shoot ratio, and 54.5% longer in leaf...

Advantages of dynamic “closed loop” stable isotope flux phenotyping over static “open loop” clamps in detecting silent genetic and dietary phenotypes

In vivo insulin sensitivity can be assessed using “open loop” clamp or “closed loop” methods. Open loop clamp methods are static, and fix plasma glucose independently from plasma insulin. Closed loop methods are dynamic, and assess glucose disposal in response to a stable isotope labeled glucose tolerance test. Using PPARα−/− mice, open and closed loop assessments of insulin...

Ag85B DNA vaccine suppresses airway inflammation in a murine model of asthma

Background In allergic asthma, Th2 lymphocytes are believed to play important roles in orchestrating airway eosinophilia and inflammation. Resetting the Th1/Th2 imbalance may have a therapeutic role in asthma. The mycobacterium tuberculosis 30-kilodalton major secretory protein (antigen 85B, Ag85B) can protect animals from M. tuberculosis infection by inducing a Th1-dominant...

Anisotropic epitaxial ZnO/CdO core/shell heterostructure nanorods

Various surface structures and polarities of one-dimensional nanostructures offer additional control in synthesizing heterostructures suitable for optoelectronic and electronic applications. In this work, we report synthesis and characterization of ZnO-CdO nanorod-based heterostructures grown on a-plane sapphire. The heterojunction formed on the sidewall surface of the nanorod...

Anisotropic surface effects on the formation of chiral morphologies of nanomaterials

Jian-Shan Wang Hai-Mu Ye Qing-Hua Qin Jun Xu Xi-Qiao Feng 0 Institute of Polymer Science and Engineering, Department of Chemical Engineering, School of Materials Science and Technology, Tsinghua

Antinociceptive effects of sinomenine in a rat model of neuropathic pain

. AffiliationsSchool of Pharmacy, Nantong University, Nantong, Jiangsu Province, ChinaQing Zhu, Yuehua Sun, Jie Zhu, Tian Fang, Wei Zhang & Jun-Xu Li AuthorsSearch for Qing Zhu in:Nature Research journals • PubMed ... journals • PubMed • Google ScholarSearch for Wei Zhang in:Nature Research journals • PubMed • Google ScholarSearch for Jun-Xu Li in:Nature Research journals • PubMed • Google Scholar Contributions Q.Z., Y.S

Association of Mitochondrial DNA Haplogroups with Exceptional Longevity in a Chinese Population

Background Longevity is a multifactorial trait with a genetic contribution, and mitochondrial DNA (mtDNA) polymorphisms were found to be involved in the phenomenon of longevity. Methodology/Principal Findings To explore the effects of mtDNA haplogroups on the prevalence of extreme longevity (EL), a population based case-control study was conducted in Rugao – a prefecture city in...

Autocrine parathyroid hormone-like hormone promotes intrahepatic cholangiocarcinoma cell proliferation via increased ERK/JNK-ATF2-cyclinD1 signaling

Intrahepatic cholangiocarcinoma (ICC) is an aggressive tumor with a high fatality rate. It was recently found that parathyroid hormone-like hormone (PTHLH) was frequently overexpressed in ICC compared with non-tumor tissue. This study aimed to elucidate the underlying mechanisms of PTHLH in ICC development. The CCK-8 assay, colony formation assays, flow cytometry and a xenograft...

Autophagy in Muscle of Glucose-Infusion Hyperglycemia Rats and Streptozotocin-Induced Hyperglycemia Rats via Selective Activation of m-TOR or FoxO3

Autophagy is a conserved process in eukaryotes required for metabolism and is involved in diverse diseases. To investigate autophagy in skeletal muscle under hyperglycemia status, we established two hyperglycemia-rat models that differ in their circulating insulin levels, by glucose infusion and singe high-dose streptozotocin injection. We then detected expression of autophagy...