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408 papers found.
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CuCr2O4@rGO Nanocomposites as High-Performance Cathode Catalyst for Rechargeable Lithium–Oxygen Batteries

Rechargeable lithium–oxygen batteries have been considered as a promising energy storage technology because of their ultra-high theoretical energy densities which are comparable to gasoline. In order to improve the electrochemical properties of lithium–oxygen batteries (LOBs), especially the cycling performance, a high-efficiency cathode catalyst is the most important component. ...

Test the mergers of the primordial black holes by high frequency gravitational-wave detector

The black hole could have a primordial origin if its mass is less than \(1M_\odot \). The mergers of these black hole binaries generate stochastic gravitational-wave background (SGWB). We investigate the SGWB in high frequency band \(10^{8}\)–\(10^{10}\,\mathrm {Hz}\). It can be detected by high frequency gravitational-wave detector. Energy density spectrum and amplitude of the ...

Effects of vaspin on pancreatic β cell secretion via PI3K/Akt and NF-κB signaling pathways

regarding this manuscript. Author Contributions Conceptualization: Shiwei Liu. Data curation: Shiwei Liu, Xin Li, Yaru Wu, Ruixue Duan. 16 / 20 Formal analysis: Shiwei Liu, Xin Li, Yaru Wu, Ruixue Duan ... . Funding acquisition: Shiwei Liu. Investigation: Shiwei Liu, Xin Li, Yaru Wu. Methodology: Shiwei Liu, Xin Li, Yaru Wu, Ruixue Duan, Jiaxin Zhang, Fang Du, Qi Zhang. Project administration: Shiwei Liu, Xin

The role of character positional frequency on Chinese word learning during natural reading

: Feifei Liang, Hazel I. Blythe, Xuejun Bai, Guoli Yan, Chuanli Zang, Simon P. Liversedge. 21 / 24 Data curation: Feifei Liang, Guoli Yan, Xin Li, Simon P. Liversedge. Formal analysis: Feifei Liang, Simon ... P. Liversedge. Investigation: Feifei Liang, Hazel I. Blythe, Xuejun Bai, Guoli Yan, Chuanli Zang, Simon P. Liversedge. Methodology: Feifei Liang, Hazel I. Blythe, Xuejun Bai, Guoli Yan, Xin Li

Finslerian dipolar modulation of the CMB power spectra at scales \(2<l<600\)

A common explanation for the CMB power asymmetry is to introduce a dipolar modulation at the stage of inflation, where the primordial power spectrum is spatially varying. If the universe in the stage of inflation is Finslerian, and if the Finsler spacetime is non-reversible under parity flip, \(x\rightarrow -x\), then a three dimensional spectrum which is a function of wave vector ...

CO hydrogenation combined with water-gas-shift reaction for synthetic natural gas production: a thermodynamic and experimental study

The hydrogenation of CO to synthetic natural gas (SNG) needs a high molar ratio of H2/CO (usually large than 3.0 in industry), which consumes a large abundant of hydrogen. The reverse dry reforming reaction (RDR, 2H2 + 2CO ↔ CH4 + CO2), combining CO methanation with water-gas-shift reaction, can significantly decrease the H2/CO molar ratio to 1 for SNG production. A detailed ...

Site-specific selection reveals selective constraints and functionality of tumor somatic mtDNA mutations

Previous studies have indicated that tumor mitochondrial DNA (mtDNA) mutations are primarily shaped by relaxed negative selection, which is contradictory to the critical roles of mtDNA mutations in tumorigenesis. Therefore, we hypothesized that site-specific selection may influence tumor mtDNA mutations. To test our hypothesis, we developed the largest collection of tumor mtDNA ...

Site-specific selection reveals selective constraints and functionality of tumor somatic mtDNA mutations

Previous studies have indicated that tumor mitochondrial DNA (mtDNA) mutations are primarily shaped by relaxed negative selection, which is contradictory to the critical roles of mtDNA mutations in tumorigenesis. Therefore, we hypothesized that site-specific selection may influence tumor mtDNA mutations. To test our hypothesis, we developed the largest collection of tumor mtDNA ...

Quantitative thyroglobulin response to radioactive iodine treatment in predicting radioactive iodine-refractory thyroid cancer with pulmonary metastasis

: Chen Wang, Yansong Lin. Data curation: Chen Wang, Xin Zhang. Formal analysis: Chen Wang, Xin Zhang. Funding acquisition: Yansong Lin. Methodology: Xin Zhang, Hui Li, Xin Li. Project administration ... : Hui Li, Xin Li. Resources: Chen Wang, Xin Li. Software: Hui Li, Xin Li. Supervision: Xin Li. Validation: Xin Zhang, Hui Li. Visualization: Chen Wang, Hui Li. Writing ± original draft: Chen Wang

The purification of reduced β2-glycoprotein I showed its native activity in vitro

New evidence has shown that reduced β2-glycoprotein I (β2GPI) has anti-oxidative stress and anti-inflammatory activity. However, the details are still poorly understood. This study aims to prepare stable reduced β2GPI with its native bioactivity in vitro. Human β2GPI was purified from plasma first with perchloric acid precipitation and then purified with a series of chromatography ...

Shrinkage function and its applications in matrix approximation

The shrinkage function is widely used in matrix low-rank approximation, compressive sensing, and statistical estimation. In this article, an elementary derivation of the shrinkage function is given. In addition, applications of the shrinkage function are demonstrated in solving several well-known problems, together with a new result in matrix approximation.

A brain-inspired SLAM system based on ORB features

This paper describes a brain-inspired simultaneous localization and mapping (SLAM) system using oriented features from accelerated segment test and rotated binary robust independent elementary (ORB) features of RGB (red, green, blue) sensor for a mobile robot. The core SLAM system, dubbed RatSLAM, can construct a cognitive map using information of raw odometry and visual scenes in ...

A Fuzzy AHP Approach to Compare Transit System Performance in US Urbanized Areas

Envelopment Analysis and Geographic Information Systems.” Computers Environment and Urban Systems, 33: 247-255. Saaty, T. L. 1980. The Analytic Hierarchy Process. New York: McGraw-Hill. About the Authors Xin ... Li, Ph.D. () is a Post-Doctoral Researcher at the University of Wisconsin–Milwaukee. Yingling Fan, Ph.D. () is Associate Professor in the Urban and Regional Planning Program of the Humphrey School of

Isoalantolactone induces intrinsic apoptosis through p53 signaling pathway in human lung squamous carcinoma cells

: Guangxin Zhang, Yifan Zhang. Writing ± original draft: Xingyi Zhang. Writing ± review & editing: Mei Sun, Xin Li, Ti Tong, Xingyi Zhang. 11 / 12 genes encoding Bax and p21(CIP1/Waf1). Oncogene. 2002; 21

Effects of Insulin Plus Glucagon-Like Peptide-1 Receptor Agonists (GLP-1RAs) in Treating Type 1 Diabetes Mellitus: A Systematic Review and Meta-Analysis

Institute of Endocrinology at Tianjin Medical University. Xin Li is a doctor at the Key Laboratory of Hormones and Development (Ministry of Health) in the Metabolic Diseases Hospital & Tianjin Institute of

Suppression of cucumber stachyose synthase gene (CsSTS) inhibits phloem loading and reduces low temperature stress tolerance

Stachyose is the main transporting sugar in phloem of Raffinose family oligosaccharides-transporting species. Stachyose synthase (STS) is a key enzyme for stachyose biosynthesis, but the gene encoding STS is poorly characterized in cucumber (Cucumis sativus L.), which is a model plant for studying stachyose metabolism and phloem function. In this research, stachyose synthase gene ...

Reduced Port Laparoscopic Distal Gastrectomy with D2 Lymphadenectomy

Background Reduced port laparoscopic surgery (RPLS), as a more minimally invasive treatment alternative to conventional laparoscopic surgery (CLS), has been increasing in recent years. 1 With the accumulation of surgical experience and improvements in surgical techniques, the indication of RPLS has been gradually extended from benign diseases to malignant tumors, including gastric ...

An AGC system with a PGA for GPS/BDS dual system compatible receiver

GPS/BDS dual system compatible receiver chip based on the proposed AGC system in this work has been taped out successfully, and achieves a tracking sensitivity of -137 dBm. Xin Li received the B.S

A plasma mir-125a-5p as a novel biomarker for Kawasaki disease and induces apoptosis in HUVECs

Background Kawasaki disease (KD) is a childhood systemic vasculitis that exhibits a specific preference for the coronary arteries. The aetiology remains unknown and there are no especially diagnostic tests. microRNAs (miRNAs) are 18 to 23 nucleotides non-coding RNAs that are negative regulator of gene expression and play a crucial role in the regulatory network of the genome. ...