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Development of a novel autonomous lower extremity exoskeleton robot for walking assistance

Today, exoskeletons are widely applied to provide walking assistance for patients with lower limb motor incapacity. Most existing exoskeletons are under-actuated, resulting in a series of problems, e.g., interference and unnatural gait during walking. In this study, we propose a novel intelligent autonomous lower extremity exoskeleton (Auto-LEE), aiming at improving the user...

Major vault protein suppresses lung cancer cell proliferation by inhibiting STAT3 signaling pathway

Major vault protein (MVP) is the major component of vault, a eukaryotic organelle involved in multiple cellular processes, and is important in multiple cellular processes and diseases including the drug resistance in cancer chemotherapies. However, the role of MVP in lung cancer remains unclear. We examined MVP expression in 120 non-small cell lung cancer (NSCLC) tumors and...

Light dark matter showering under broken dark U(1) — revisited

Abstract It was proposed recently that different chiralities of the dark matter (DM) fermion under a broken dark U(1) gauge group can lead to distinguishable signatures at the LHC through shower patterns, which may reveal the mass origin of the dark sector. We study this subject further by examining the dark shower of two simplified models, the dubbed Chiral Model and the Vector...

A cooperative spectrum sensing method based on information geometry and fuzzy c-means clustering algorithm

University in 2016. He is currently pursuing the M.S. degree in Guangdong University of Technology, Guangdong, China. His research interests include spectrum sensing in cognitive radio. Nan Li is currently

IFNγ and TNFα synergistically induce apoptosis of mesenchymal stem/stromal cells via the induction of nitric oxide

BackgroundMesenchymal stem/stromal cells (MSCs) have been widely used to treat various inflammatory diseases. The immunomodulatory capabilities of MSCs are usually licensed by inflammatory cytokines and may vary depending on the levels and the types of inflammatory cytokines. However, how the inflammatory microenvironment affects the fate of MSCs remains elusive. Here we...

WRF-Chem modeling of particulate matter in the Yangtze River Delta region: Source apportionment and its sensitivity to emission changes

compared with the results of the BASE simulation (right panel). (TIF) Author Contributions Conceptualization: Nan Li. 12 / 15 Data curation: Nan Li, Yilei Lu, Xin Long. Formal analysis: Nan Li. Funding ... acquisition: Nan Li. Methodology: Nan Li, Jingyi Li, Xin Long. Supervision: Hong Liao. Visualization: Nan Li. Writing ? original draft: Nan Li. Writing ? review & editing: Nan Li, Qingyang He. 13 / 15 14

Design and basic research on accuracy of a novel individualized three-dimensional printed navigation template in atlantoaxial pedicle screw placement

information S1 Dataset. The origin dataset of the manuscript. (XLS) Author Contributions Conceptualization: Jian-Xin Li. Data curation: Guan-Nan Li. Formal analysis: Wu Wu. Funding acquisition: Wen-Hua

Isolation and biochemical characterization of a metagenome-derived 3-deoxy-d-arabino-heptulosonate-7-phosphate synthase gene from subtropical marine mangrove wetland sediments

3-Deoxy-d-arabino-heptulosonate-7-phosphate synthase (DAHPS) is a key rate-limiting enzyme in aromatic amino acid anabolism. A new Iβ-type DAHPS gene (aro1A) was identified in a metagenomic library from subtropical marine mangrove sediment. The gene encoded a polypeptide composed of 272 amino acids and had a maximum similarity of 52.4% to a known DAHPS at the amino acid level...

Numerical simulation study on effectiveness of shielding structure on ultrasonic transmission tomography

Research Funds for the Central Universities (3102017OQD028). About the authors Nan Li received his B.S. and Ph.D. degree in 2004 and 2010, respectively, from Xidian University. He has worked as an associate

Tailoring electrical property of the low-temperature processed SnO2 for high-performance perovskite solar cells

Herein, we for the first time doped Nb5+ into the low-temperature (<100°C) SnO2 sol-gel route to tailor the electrical property of SnO2 layers and the band alignment between SnO2 and the normally used mixed perovskites. The results revealed that proper Nb5+ doping increased the conductivity of the SnO2 electron transport layer (ETL), and the conduction band (CB) level of the SnO2...

Effects of isoliquiritigenin on ovarian cancer cells

Effects of isoliquiritigenin on ovarian cancer cells Nan Li,1 Liang Yang,2 Xinna Deng,3 Yanan Sun4 1Department of Gynecology, Second Hospital of Hebei Medical University, Shijiazhuang, People’s

Research on feature extraction and segmentation of rover wheel imprint

The wheel imprint photograph of the rover contains important information such as wheel motion parameters, soil characteristic parameters and movement status of the rover. Segmenting the wheel imprint area from the photograph is an important prerequisite for feature extraction and parameter identification. Traditional image segmentation cannot take both speed and precision into...

Fractionation of DMSO-Extracted and NaOH-Extracted Hemicelluloses by Gradient Ethanol Precipitation from Neosinocalamus affinis

Neosinocalamus affinis hemicelluloses were extracted with pure DMSO and 3% NaOH in sequence. The DMSO- and NaOH-extracted hemicelluloses were then successively fractionated by gradient ethanol precipitation. NaOH-extracted hemicellulosic fractions with different branch degree could be separated by gradient ethanol precipitation, while DMSO-extracted hemicellulosic fractions could...

Fractionation of DMSO-Extracted and NaOH-Extracted Hemicelluloses by Gradient Ethanol Precipitation from Neosinocalamus affinis

Neosinocalamus affinis hemicelluloses were extracted with pure DMSO and 3% NaOH in sequence. The DMSO- and NaOH-extracted hemicelluloses were then successively fractionated by gradient ethanol precipitation. NaOH-extracted hemicellulosic fractions with different branch degree could be separated by gradient ethanol precipitation, while DMSO-extracted hemicellulosic fractions could...

The possible members of the \(5^1S_0\) meson nonet

The strong decays of the \(5^1S_0\) \(q{\bar{q}}\) states are evaluated in the \(^3P_0\) model with two types of space wave functions. Comparing the model expectations with the experimental data for the \(\pi (2360)\), \(\eta (2320)\), X(2370), and X(2500), we suggest that the \(\pi (2360)\), \(\eta (2320)\), and X(2500) can be assigned as the members of the \(5^1S_0\) meson...

MicroRNA-770 affects proliferation and cell cycle transition by directly targeting CDK8 in glioma

MicroRNAs play crucial roles in tumorigenesis and tumor progression. miR-770 has been reported to be downregulated in several cancers and affects cancer cell proliferation, apoptosis, metastasis and drug resistance. However, the role and underlying molecular mechanism of miR-770 in human glioma remain unknown and need to be further elucidated. The expression of miR-770 in glioma...

Trends in stroke subtypes and vascular risk factors in a stroke center in China over 10 years

• Google Scholar Search for Nan Li in:Nature Research journals • PubMed • Google Scholar Search for Bernard Yan in:Nature Research journals • PubMed • Google Scholar Search for Dongsheng Fan in:Nature ... subtypes and Nan Li gave suggestions on statistical methods. Dongsheng Fan conceived the research and guided the process. Danyang Tian, Qiong Yang, Bernard Yan and Dongsheng Fan wrote the main manuscript and

Combined epidural-general anesthesia was associated with lower risk of postoperative complications in patients undergoing open abdominal surgery for pheochromocytoma: A retrospective cohort study

: Nan Li. Conceptualization: Nan Li, Hao Kong, Shuang-Ling Li, Dong-Xin Wang. Formal analysis: Nan Li, Hao Kong, Sai-Nan Zhu, Dong-Xin Wang. Funding acquisition: Nan Li. Investigation: Nan Li, Hao Kong ... . Methodology: Sai-Nan Zhu, Dong-Xin Wang. Resources: Dong-Xin Wang. Software: Sai-Nan Zhu. Supervision: Shuang-Ling Li, Dong-Xin Wang. Validation: Hao Kong, Sai-Nan Zhu. Writing ± original draft: Nan Li

Factors related to improvement of symptoms, function, and caregiver burden in Chinese patients with schizophrenia after switching to paliperidone palmitate once-monthly from oral antipsychotics

Factors related to improvement of symptoms, function, and caregiver burden in Chinese patients with schizophrenia after switching to paliperidone palmitate once-monthly from oral antipsychotics Nan ... direction and comments on the manuscript, made the final decision about where to publish these data, and approved submission to the journal. Disclosure Nan Li has been a consultant and/or advisor to Janssen