Search results for: Liu Jun

Items from 1 to 20 out of 384 results

article

The novel HLA‐A02:07:23* allele, identified by Sanger dideoxy nucleotide sequencing in a Chinese individual

Liu‐Jun Guo, Zi‐Lu Zhang, Zhong‐Zheng Zheng, Ke‐Ming Du, more

HLA > 102 > 3 > 348 - 349

HLA‐A*02:07:23 differs from HLA‐A*02:07:01:01 by one nucleotide in exon 2.

article

Solvent‐Dependent Chemoselective and Stereoselective Approach to Synthesis of Spiro‐γ‐Lactams with Potent Anticancer Activity

Jie Lei, Liu‐Jun He, Dian‐Yong Tang, Jingyuan Wen, more

Advanced Synthesis & Catalysis > 363 > 12 > 2996 - 3000

Chemoselective approaches were developed for derivatizing diastereoselective chromanone spiro‐γ‐lactams through the Michael‐type addition by using amide as a weak nucleophile to construct the spiro‐carbon center under basic conditions. To expand the scope of this post‐Ugi cascade reaction, a new series of oxidized chromone derivatives was synthesized by altering solvent from EtOH to DMF. Compounds...

article

High‐flow nasal cannula oxygen versus conventional oxygen for hypercapnic chronic obstructive pulmonary disease: A meta‐analysis of randomized controlled trials

Xuan Huang, Yanping Du, Zhiyi Ma, Huaping Zhang, more

The Clinical Respiratory Journal > 15 > 4 > 437 - 444

Introduction Low‐concentration oxygen is an established way for the treatment of chronic obstructive pulmonary disease (COPD) with Type II respiratory failure. Hypercapnia can complicate both COPD exacerbations and stable COPD. Treating with noninvasive ventilation (NIV) can reduce carbon dioxide tension in arterial (PaCO₂) in hypercapnic COPD. As an open system, high‐flow nasal cannula oxygen (HFNC)...

article

Facile construction of fused benzimidazole-isoquinolinones that induce cell-cycle arrest and apoptosis in colorectal cancer cells

Liu-Jun He, Dong-Lin Yang, Shi-Qiang Li, Ya-Jun Zhang, more

Bioorganic & Medicinal Chemistry > 2018 > 26 > 14 > 3899-3908

Colorectal cancer (CRC) is one of the most frequent, malignant gastrointestinal tumors, and strategies and effectiveness of current therapy are limited. A series of benzimidazole-isoquinolinone derivatives (BIDs) was synthesized and screened to identify novel scaffolds for CRC. Of the compounds evaluated, 7g exhibited the most promising anti-cancer properties. Employing two CRC cell lines, SW620 and...

article

Benzimidazoisoquinoline derivatives inhibit glioblastoma cell proliferation through down-regulating Raf/MEK/ERK and PI3K/AKT pathways

Ya-Jun Zhang, Zhi-Gang Xu, Shi-Qiang Li, Liu-Jun He, more

Cancer Cell International > 2018 > 18 > 1 > 1-12

Background Recent studies showed that benzimidazoleisoquinolinone derivatives exhibit anticancer activity against human cancer cell lines. The aim of this study is to evaluate the anti-tumor effects and mechanisms of benzimidazoleisoquinolinones in isocitrate dehydrogenase-wildtype subtype of human glioblastoma (GBM) cells. Methods Human U87 and LN229 cell lines were used to perform the experiments...

article

CaHSP16.4, a small heat shock protein gene in pepper, is involved in heat and drought tolerance

Liu-Jun Huang, Guo-Xin Cheng, Abid Khan, Ai-Min Wei, more

Protoplasma > 2019 > 256 > 1 > 39-51

Environmental stress affects growth and development of crops, and reduces yield and quality of crops. To cope with environmental stressors, plants have sophisticated defense mechanisms, including the HSF/HSP pathway. Here, we identify the expression pattern of CaHSP16.4 in thermo-tolerant and thermo-sensitive pepper (Capsicum annuum L.) lines. Under heat stress, R9 thermo-tolerant line had higher...

article

Functionalized Spiroindolines with Anticancer Activity through a Metal‐Free Post‐Ugi Diastereoselective One‐Pot Cascade Reaction

Zhi‐Gang Xu, Shi‐Qiang Li, Jiang‐Ping Meng, Dian‐Yong Tang, more

Chemistry – A European Journal > 24 > 26 > 6732 - 6736

A post‐Ugi diastereoselective one‐pot cascade reaction requiring no metal catalyst was developed. The reaction scope was wide with mild conditions and good yields. A collection of spiroindolines was prepared by the protocol and screening tests in several difficult‐to‐inhibit cancer cell lines were conducted. The relationship of structure and anticancer activities was promising and in the Huh7 cell...

article

Characteristics and health risk assessment of heavy metals exposure via household dust from urban area in Chengdu, China

Zhang Cheng, Liu-Jun Chen, Han-Han Li, Jian-Qing Lin, more

Science of The Total Environment > 2018 > 619-620 > C > 621-629

To investigate the characteristics of heavy metals (Cr, Cd, Pb, Zn, Cu and Ni) in household dust in urban household environment of Chengdu, China, 90 household dust samples were collected from 6 districts of the city. The information of houses and residents were also recorded during dust sampling to identify the correlations between heavy metals in household dust and the house attributes. And also...

article

Variation in leaf color and combine effect of pigments on physiology and resistance to whitefly of pepper (Capsicum annuum L.)

Guo-Xin Cheng, Ru-Jian Li, Min Wang, Liu-Jun Huang, more

Scientia Horticulturae > 2018 > 229 > C > 215-225

Pigments are important in vegetable kingdom. However, little is known regarding role of their combination in pepper. In this study, three pepper strains were crossed to get F1 pepper plants, and exposed to whitefly attack at 6–8 leaves stage. Populations (M1–M9) differing in leaf color divulged that leaf color inherited to progenies at different extent and intensively showed matrocliny. Furthermore,...

article

Structure‐ and Temperature‐Dependent Luminescence Properties of Threefold Interpenetrated Networks: Coordination Polymers Based on Dinuclear Gridlike Silver(I) Units

Shun‐Ze Zhan, Huan‐Quan Song, Liu‐Jun Guo, Raymond Wai‐Yin Sun, more

European Journal of Inorganic Chemistry > 2017 > 44 > 5127 - 5133

Dinuclear gridlike Ag^I structural units (1) based on (3‐pyridyl)‐5‐R‐pyrazole ligands are extended from oligomers (R = phenyl) to three threefold interpenetrated 3D coordination polymers (R = 3‐pyridyl) with cds‐a (augmented CdSO₄) networks (2‐NO₃, 2‐ClO₄, 2‐BF₄) linked through multiple supramolecular interactions (Ag–ligand, Ag–anion, Ag···Ag, and π–π interactions). The photoemission intensities...

article

Investigation on three-photon absorption induced upconversion fluorescence properties of two fluorene-based derivatives

Li Guo Feng, Liu Jun Hui

Optik - International Journal for Light and Electron Optics > 2017 > 149 > C > 184-188

Steady state florescence and three-photon-absorption-induced upconversion fluorescence of two fluorene-based derivatives with different electron donors were investigated. The upconversion fluorescence intensity is cubic with the input intensity. The electron donors have great impact on the upconversion fluorescence property. The transition processes of the two molecules were investigated with TD SCF/DFT...

article

An improved strategy for stable biocontrol agents selecting to control rice sheath blight caused by Rhizoctonia solani

Yi-Yang Yu, Chun-Hao Jiang, Chao Wang, Liu-Jun Chen, more

Microbiological Research > 2017 > 203 > C > 1-9

Rice sheath blight caused by Rhizoctonia solani Kühnis increasingly threatening rice production in China. DNA fingerprints of 220 R. solani strains isolated in 11 provinces of China were established by random amplified polymorphic DNA (RAPD)-PCR. Cluster analysis of strains isolated from the same region showed high similarity, indicating that the genetic diversity of R. solani strains is significantly...

article

Thermal nonlinear effect in high Q factor silicon-on-insulator microring resonator

Tong Xiaogang, Liu Jun, Xue Chenyang

Optics Communications > 2017 > 395 > C > 207-211

In this paper, all–optical switching in silicon-on-insulator (SOI) serially coupled ring resonator based on thermal nonlinear effect is proposed. The radii of the silicon microring resonator are 10μm. In experiment, firstly measured by single pump injection technology with vertical coupling surface grating coupler method, the highest notch of serially coupled ring resonator is 17dB. The strong transverse...

chapter

A review of object detection based on convolutional neural network

Wang Zhiqiang, Liu Jun

2017 36th Chinese Control Conference (CCC) > 11104 - 11109

2017 36th Chinese Control Conference (CCC)

With the development of intelligent device and social media, the data bulk on Internet has grown with high speed. As an important aspect of image processing, object detection has become one of the international popular research fields. In recent years, the powerful ability with feature learning and transfer learning of Convolutional Neural Network (CNN) has received growing interest within the computer...

chapter

Deep hashing for large-scale image retrieval

Li Mengting, Liu Jun

2017 36th Chinese Control Conference (CCC) > 10940 - 10944

2017 36th Chinese Control Conference (CCC)

In recent years, because of its ability to improve the retrieval efficiency and reduce the storage space, the image hashing methods based on deep learning have got widely attention in large-scale image retrieval system. At first, this paper introduces the development of the deep learning network, and analyzes the advantages and disadvantages of the deep hashing methods combined with convolutional...

article

Thermal protection performance of magnetohydrodynamic heat shield system based on multipolar magnetic field

Li Kai, Liu Jun, Liu Weiqiang

Acta Astronautica > 2017 > 136 > C > 248-258

In order to cover the shortage of dipole magnetic field in the magnetohydrodynamic(MHD) heat shield system, physical model of a multipolar magnetic field with central and peripheral solenoids is constructed. By employing the governing equations of three dimensional thermochemical nonequilibrium flow with electromagnetic source terms based on the low magneto-Reynolds assumption, the flow control performance...

chapter

Simulation experiment of flexible parallel robot control by RBF neural network based on sliding mode robust term

Wang Yuqi, Lin Qi, Wang XiaoGuang, Liu Jun

2017 2nd Asia-Pacific Conference on Intelligent Robot Systems (ACIRS) > 244 - 249

2017 2nd Asia-Pacific Conference on Intelligent Robot Systems (ACIRS)

In this paper, RBF neural network control based on sliding mode robust term is proposed to improve the motion precision of wire — driven parallel robot. In the process of the movement for wire-driven parallel robot, a number of uncertain parameters are generated due to the experimental environment, external interference and other factors. According to the uncertainties of these parameters, RBF neural...

article

Pollution characteristics and risk assessment of human exposure to oral bioaccessibility of heavy metals via urban street dusts from different functional areas in Chengdu, China

Han-Han Li, Liu-Jun Chen, Lin Yu, Zhong-Bao Guo, more

Science of The Total Environment > 2017 > 586 > C > 1076-1084

Urban street dusts were collected in commercial area (CA), traffic area (TA), educational area (EA), residential area (RA) and parks area (PA) of Chengdu, China, to investigate the concentrations of heavy metals (Pb, Zn, Cu, Ni, Cd and Cr), and analyzed to evaluated possible sources and health risk assessment. The average concentrations (mg/kg) of Pb (82.3), Zn (296), Cu (100), Cd (1.66) and Cr (84...

article

MicroRNA biomarkers of Parkinson’s disease in serum exosome-like microvesicles

Xiang-Yang Cao, Jing-Min Lu, Zhi-Qiang Zhao, Ming-Chao Li, more

Neuroscience Letters > 2017 > 644 > C > 94-99

Parkinson’s disease (PD) is a progressive age-related debilitating motor disorder and the second most common neurodegenerative disease after Alzheimer’s disease. In this study, we aimed to investigate the expression of 24 candidate miRNAs in PD and to assess their diagnostic value in patients with PD. We collected serum samples from 109 patients with PD and 40 age- and sex-matched healthy volunteers...

article

Anti-eavesdropping Network Coding Algorithm Based on T-N Threshold

Liu Jun, Yang Jingyu, Cheng Zijing, Wang Mengyuan

Chinese Journal of Electronics > 2017 > 26 > 2 > 372 - 376

Catering to the public nature of Ad hoc network in open channel and data communication being easily eavesdropped, this paper proposed an antieaves-dropping algorithm which is based on network coding. The algorithm is based on the RSA signature algorithm introducing the timestamp and homomorphic mechanism to detect tampering and replay attacks, as the basis for calculating safety, being used as one...

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INFONA - science communication portal

Search results for: Liu Jun

The novel HLA‐A02:07:23* allele, identified by Sanger dideoxy nucleotide sequencing in a Chinese individual

Solvent‐Dependent Chemoselective and Stereoselective Approach to Synthesis of Spiro‐γ‐Lactams with Potent Anticancer Activity

High‐flow nasal cannula oxygen versus conventional oxygen for hypercapnic chronic obstructive pulmonary disease: A meta‐analysis of randomized controlled trials

Facile construction of fused benzimidazole-isoquinolinones that induce cell-cycle arrest and apoptosis in colorectal cancer cells

Benzimidazoisoquinoline derivatives inhibit glioblastoma cell proliferation through down-regulating Raf/MEK/ERK and PI3K/AKT pathways

CaHSP16.4, a small heat shock protein gene in pepper, is involved in heat and drought tolerance

Functionalized Spiroindolines with Anticancer Activity through a Metal‐Free Post‐Ugi Diastereoselective One‐Pot Cascade Reaction

Characteristics and health risk assessment of heavy metals exposure via household dust from urban area in Chengdu, China

Variation in leaf color and combine effect of pigments on physiology and resistance to whitefly of pepper (Capsicum annuum L.)

Structure‐ and Temperature‐Dependent Luminescence Properties of Threefold Interpenetrated Networks: Coordination Polymers Based on Dinuclear Gridlike Silver(I) Units

Investigation on three-photon absorption induced upconversion fluorescence properties of two fluorene-based derivatives

An improved strategy for stable biocontrol agents selecting to control rice sheath blight caused by Rhizoctonia solani

Thermal nonlinear effect in high Q factor silicon-on-insulator microring resonator

A review of object detection based on convolutional neural network

Deep hashing for large-scale image retrieval

Thermal protection performance of magnetohydrodynamic heat shield system based on multipolar magnetic field

Simulation experiment of flexible parallel robot control by RBF neural network based on sliding mode robust term

Pollution characteristics and risk assessment of human exposure to oral bioaccessibility of heavy metals via urban street dusts from different functional areas in Chengdu, China

MicroRNA biomarkers of Parkinson’s disease in serum exosome-like microvesicles

Anti-eavesdropping Network Coding Algorithm Based on T-N Threshold

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