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187 papers found.
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Application of Metabolomics in the Study of Natural Products

LC–MS-based metabolomics could have a major impact in the study of natural products, especially in its metabolism, toxicity and activity. This review highlights recent applications of metabolomics approach in the study of metabolites and toxicity of natural products, and the understanding of their effects on various diseases. Metabolomics has been employed to study the in vitro...

Deep millimeter spectroscopy observations toward NGC 1068

Aims. We aim for a better understanding of gas properties in the circum-nuclear disk (CND) region of the nearby gas-rich Seyfert 2 galaxy NGC 1068. We focus on line identification and the basic physical parameters estimation of molecular gas in the CND region.Methods. We used the IRAM 30 m telescope to conduct deep millimeter spectroscopy observations toward the center of NGC...

Specialized core bacteria associate with plants adapted to adverse environment with high calcium contents

corporation for the technical support. Author Contributions Conceptualization: Fei Li. Data curation: Fei Li. Formal analysis: Fei Li. Funding acquisition: Fei Li. Investigation: Fei Li, Lunxian Liu ... . Methodology: Fei Li, Ximin Zhang, Jiyi Gong. Resources: Jiyi Gong, Lunxian Liu. Software: Ximin Zhang. Validation: Ximin Zhang. Writing ± original draft: Fei Li. Writing ± review & editing: Fei Li, Yin Yi

A network pharmacology approach to determine the synergetic mechanisms of herb couple for treating rheumatic arthritis

A network pharmacology approach to determine the synergetic mechanisms of herb couple for treating rheumatic arthritis Xi-xi Xu,1 Jian-ping Bi,2 Li Ping,3 Ping Li,1 Fei Li1,4 1State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, People’s Republic of China; 2Orthopedics Department, Shandong Provincial Traditional Chinese Medical Hospital, Affiliated...

New approximation methods for solving elliptic boundary value problems via Picard-Mann iterative processes with mixed errors

In this paper, we introduce and study a class of new Picard-Mann iterative methods with mixed errors for common fixed points of two different nonexpansive and contraction operators. We also give convergence and stability analysis of the new Picard-Mann iterative approximation and propose numerical examples to show that the new Picard-Mann iteration converges more effectively than...

The current status of clinical trials focusing on nasopharyngeal carcinoma: A comprehensive analysis of ClinicalTrials.gov database

). Author Contributions Conceptualization: Hao Peng, Lei Chen, Jun Ma. Data curation: Hao Peng, Lei Chen, Yu-Pei Chen. Formal analysis: Hao Peng, Yu-Pei Chen, Wen-Fei Li, Ling-Long Tang, Ai-Hua Lin ... . Funding acquisition: Jun Ma. Methodology: Lei Chen, Yu-Pei Chen. Project administration: Wen-Fei Li. Software: Hao Peng, Yu-Pei Chen, Wen-Fei Li, Ai-Hua Lin. Supervision: Jun Ma. Validation: Hao Peng

Assessment of municipal infrastructure development and its critical influencing factors in urban China: A FA and STIRPAT approach

and Baoji; Gansu ProvinceÐJiayuguan; Jiangxi ProvinceÐXinyu and Pingxiang; and Ningxia Hui Autonomous RegionÐShizuishan. Author Contributions Conceptualization: Yu Li, Fei Li. Data curation: Ji Zheng ... , Xueting Jin, Chen Xu. Formal analysis: Ji Zheng, Chen Xu. Investigation: Yu Li, Fei Li, Xueting Jin. Methodology: Fei Li. Project administration: Yu Li, Fei Li. Software: Yu Li, Ji Zheng, Fei Li

Correction: De novo assembly and analysis of the transcriptome of Rumex patientia L. during cold stress

Liu , Yongqing Xu, Liguo Zhang, Wei Li, Zhenxue Cai, Fei Li, Mu Peng, Fenglan Li The affiliations for authors Liguo Zhang and Wei Li are incorrect. Liguo Zhang and Wei Ling are not affiliated with #1

Genome-wide identification of wheat (Triticum aestivum) expansins and expansin expression analysis in cold-tolerant and cold-sensitive wheat cultivars

, Yong-Qing Xu, Jia-Min Dong, Li-Na Peng, Xu Feng, Fei Li, Yu Miao, Shu-Kuan Yao, Qiao-Qin Zhao, Shan-Shan Feng, Bao-Zhong Hu. Formal analysis: Jun-Feng Zhang, Yong-Qing Xu, Jia-Min Dong, Li-Na Peng, Xu ... Feng, Xu Wang, Fei Li, Yu Miao, Shu-Kuan Yao, Qiao-Qin Zhao, Shan-Shan Feng, Bao-Zhong Hu, Feng-Lan Li. Funding acquisition: Jun-Feng Zhang, Yong-Qing Xu, Bao-Zhong Hu, Feng-Lan Li. Investigation: Jun

Differential Treatment Response to Insulin Intensification Therapy: A Post Hoc Analysis of a Randomized Trial Comparing Premixed and Basal-Bolus Insulin Regimens

Lilly and Company for their support in peer review. The authors also thank Fei Li of Eli Lilly and Company for assistance in publication project management. The authors would like to thank all study ... of the data and accuracy of the data analysis. Li Xin Shi was involved in the interpretation of data for the work. Peng Fei Li was involved in the analysis and interpretation of data for the work. Jia

Antimicrobial peptide gene BdPho responds to peptidoglycan infection and mating stimulation in oriental fruit fly, Bactrocera dorsalis (Hendel)

Phormicins belong to defensin family, which are important antimicrobial peptides (AMPs) in insects. These AMPs are inducible upon challenging by immune triggers. In the present study, we identified the cDNA of a phormicin gene (BdPho) in the oriental fruit fly, Bactrocera dorsalis (Hendel), a ruinous agricultural pest causing great economic losses to fruits and vegetables. The...

Research on Learning from Demonstration of Mobile Robot with Autonomous Navigation

A new method of batch learning from Demonstration is presented, in order to solve the problem of mobile robot independent navigation. According to the actual situation, the model of the Learning form Demonstration is given, and the neural network is used to realize the robot’s learning. Considering that the single artificial neural network cause dimension disaster, we designed...

An overview of the mission and technical characteristics of Change’4 Lunar Probe

Change’4 Lunar Probe will softly land on the farside of the Moon for the first time of all mankind and carry out in-situ and rovering exploration. In this paper, the scientific significance and engineering difficulties of Change’4 are introduced and the probe’s general design, including the aspects of landing site selection, relay communication, trajectory design of relay...

Herpesviruses in etiopathogenesis of aggressive periodontitis: A meta-analysis based on case-control studies

Systematic Reviews and Meta-Analyses (PRISMA) statement guidelines (More details were shown in S1 File). A review protocol did not exist. Search strategy Fei Li and Ce Zhu conducted computerized search of ... . Supervision: May. Chun. Mei Wong, Hai-Xia Lu. Writing ± original draft: Fei Li. 11 / 13 Writing ± review & editing: Ce Zhu. 12 / 13 Watanabe SA , Correia-Silva Jde F , Horta MC , Costa JE , Gomez RS . EBV-1

De novo assembly and analysis of the transcriptome of Rumex patientia L. during cold stress

expressed gene). (DOC) Author Contributions Formal analysis: Liguo Zhang, Wei Li, Zhenxue Cai, Fei Li, Mu Peng. Project administration: Fenglan Li, Baozhong Hu. Writing ± original draft: Jianxin Liu

Modelling of a post-combustion CO2 capture process using extreme learning machine

This paper presents modelling of a post-combustion CO2 capture process using bootstrap aggregated extreme learning machine (ELM). ELM randomly assigns the weights between input and hidden layers and obtains the weights between the hidden layer and output layer using regression type approach in one step. This feature allows an ELM model being developed very quickly. This paper...

Study on association of working hours and occupational physical activity with the occurrence of coronary heart disease in a Chinese population

-Sheng Wang. Investigation: Mohammad Reeaze Khurwolah. Methodology: Yao Ma, Ying-Jun Wang, Bing-Rui Chen, Yang Yang. Project administration: Yao Ma. Resources: Mohammad Reeaze Khurwolah, Ya-Fei Li ... , Yang Yang. Software: Hao Wang, Zhi-Yong Xie. Supervision: Lian-Sheng Wang. 11 / 14 Validation: Ying-Jun Wang, Bing-Rui Chen, Ya-Fei Li. Visualization: Zhi-Yong Xie. Writing ± original draft: Yao Ma

Preparation and characterization of a novel silicon-modified nanobubble

Nanobubbles (NBs) opened a new field of ultrasound imaging. There is still no practical method to control the diameter of bubbles. In this study, we developed a new method to control the size by incorporating of silicon hybrid lipids into the bubble membrane. The range of particle size of resulting NBs is between 523.02 ± 46.45 to 857.18 ± 82.90, smaller than the conventional...

Improved image quality and diagnostic potential using ultra-high-resolution computed tomography of the lung with small scan FOV: A prospective study

The aim of this study was to assess whether CT imaging using an ultra-high-resolution CT (UHRCT) scan with a small scan field of view (FOV) provides higher image quality and helps to reduce the follow-up period compared with a conventional high-resolution CT (CHRCT) scan. We identified patients with at least one pulmonary nodule at our hospital from July 2015 to November 2015...