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974 results on '"Wei, Le"'

3. Study of the $B^-\to K^-\eta\eta_c$ decay due to the $D\bar{D}$ bound state

Author

Li, Xin-Qiang, Liu, Li-Juan, Wang, En, and Wei, Le-Le

Subjects
High Energy Physics - Phenomenology
Abstract

We study the $B^- \to K^- \eta \eta_c$ decay by taking into account the $S$-wave contributions from the pseudoscalar meson-pseudoscalar meson interactions within the unitary coupled-channel approach, where the $D\bar{D}$ bound state is dynamically generated. In addition, the contribution from the intermediate resonance $K_0^*(1430)^-$, with $K_0^*(1430)^- \to K^-\eta$, is also considered. Our results show that there is a clear peak around $3720$~MeV in the $\eta \eta_c$ invariant mass distribution, which could be associated with the $D \bar{D}$ bound state. The future precise measurements of the $B^- \to K^- \eta \eta_c$ process at the Belle II and LHCb experiments could be, therefore, used to check the existence of the $D \bar{D}$ bound state, and to deepen our understanding of the hadron-hadron interactions., Comment: 14 pages, 9 figures

Published
2023
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8. The impact of selected methodological factors on data collection outcomes in observational studies of device-measured physical behaviour in adults: A systematic review

Author

Pulsford, Richard M., Brocklebank, Laura, Fenton, Sally A. M., Bakker, Esmée, Mielke, Gregore I., Tsai, Li-Tang, Atkin, Andrew J., Harvey, Danielle L., Blodgett, Joanna M., Ahmadi, Matthew, Wei, Le, Rowlands, Alex, Doherty, Aiden, Rangul, Vegar, Koster, Annemarie, Sherar, Lauren B., Holtermann, Andreas, Hamer, Mark, and Stamatakis, Emmanuel

Published
2023
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13. Search for a $D \bar{D}$ bound state in the $\Lambda_b \rightarrow \Lambda D\bar{D}$ process

Author

Wei, Le-Le, Li, Hong-Shen, Wang, En, Xie, Ju-Jun, Li, De-Min, and Li, Yu-Xiao

Subjects
High Energy Physics - Phenomenology
Abstract

We have investigated the process of $\Lambda_b\to \Lambda D\bar{D}$, by taking into account the contributions from the $s$-wave $D\bar{D}$ interaction within the coupled-channel unitary approach, and the intermediate $\psi(3770)$ resonance. In addition to the peak of the $\psi(3770)$, an enhancement near the $D\bar{D}$ mass threshold is found in the $D\bar{D}$ invariant mass distributions, which should be the reflection of the $D\bar{D}$ bound state. We would like to encourage our experimental colleagues to measure the $D\bar{D}$ invariant mass distribution of the $\Lambda_b\to \Lambda D\bar{D}$ process, which is crucial to search for the $D\bar{D}$ bound state and to understand the heavy-hadron heavy-hadron interactions., Comment: 7 pages, 9 figures, comments are welcome

Published
2021
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20. Research and Practice on Ideological and Political Teaching of ‘Big Data System and Technology’ Course

Author

Zhao, Qiuyun, Wei, Le, Striełkowski, Wadim, Editor-in-Chief, Black, Jessica M., Series Editor, Butterfield, Stephen A., Series Editor, Chang, Chi-Cheng, Series Editor, Cheng, Jiuqing, Series Editor, Dumanig, Francisco Perlas, Series Editor, Al-Mabuk, Radhi, Series Editor, Scheper-Hughes, Nancy, Series Editor, Urban, Mathias, Series Editor, Webb, Stephen, Series Editor, Sedon, Mohd Fauzi bin, editor, Khan, Intakhab Alam, editor, BİRKÖK, Mehmet CÜNEYT, editor, and Chan, KinSun, editor

Published
2023
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21. Course Assessment System Construction of ‘Big Data System and Technology’ in Blended Teaching Mode

Author

Zhao, Qiuyun, Wei, Le, Striełkowski, Wadim, Editor-in-Chief, Black, Jessica M., Series Editor, Butterfield, Stephen A., Series Editor, Chang, Chi-Cheng, Series Editor, Cheng, Jiuqing, Series Editor, Dumanig, Francisco Perlas, Series Editor, Al-Mabuk, Radhi, Series Editor, Scheper-Hughes, Nancy, Series Editor, Urban, Mathias, Series Editor, Webb, Stephen, Series Editor, Sedon, Mohd Fauzi bin, editor, Khan, Intakhab Alam, editor, BİRKÖK, Mehmet CÜNEYT, editor, and Chan, KinSun, editor

Published
2023
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22. Application of Blended Teaching in Software Architecture for Graduate Students

Author

Wei, Le, Zhao, Qiuyun, Striełkowski, Wadim, Editor-in-Chief, Black, Jessica M., Series Editor, Butterfield, Stephen A., Series Editor, Chang, Chi-Cheng, Series Editor, Cheng, Jiuqing, Series Editor, Dumanig, Francisco Perlas, Series Editor, Al-Mabuk, Radhi, Series Editor, Scheper-Hughes, Nancy, Series Editor, Urban, Mathias, Series Editor, Webb, Stephen, Series Editor, Sedon, Mohd Fauzi bin, editor, Khan, Intakhab Alam, editor, BİRKÖK, Mehmet CÜNEYT, editor, and Chan, KinSun, editor

Published
2023
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23. Teaching Reform and Practice of Software Architecture for Postgraduates in Universities

Author

Wei, Le, Zhao, Qiuyun, Striełkowski, Wadim, Editor-in-Chief, Black, Jessica M., Series Editor, Butterfield, Stephen A., Series Editor, Chang, Chi-Cheng, Series Editor, Cheng, Jiuqing, Series Editor, Dumanig, Francisco Perlas, Series Editor, Al-Mabuk, Radhi, Series Editor, Scheper-Hughes, Nancy, Series Editor, Urban, Mathias, Series Editor, Webb, Stephen, Series Editor, Ying, Loo Fung, editor, Halili, Ts. Dr. Siti Hajar, editor, and Mishra, Deepanjali, editor

Published
2023
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24. Exploration and Practice of Big Data System and Technology Blended Teaching Mode

Author

Zhao, Qiuyun, Wei, Le, Striełkowski, Wadim, Editor-in-Chief, Black, Jessica M., Series Editor, Butterfield, Stephen A., Series Editor, Chang, Chi-Cheng, Series Editor, Cheng, Jiuqing, Series Editor, Dumanig, Francisco Perlas, Series Editor, Al-Mabuk, Radhi, Series Editor, Scheper-Hughes, Nancy, Series Editor, Urban, Mathias, Series Editor, Webb, Stephen, Series Editor, Ying, Loo Fung, editor, Halili, Ts. Dr. Siti Hajar, editor, and Mishra, Deepanjali, editor

Published
2023
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25. Design and Practice of Course Ideology and Politics in Discrete Structure Teaching

Author

Wei, Le, Zhao, Qiuyun, Striełkowski, Wadim, Editor-in-Chief, Black, Jessica M., Series Editor, Butterfield, Stephen A., Series Editor, Chang, Chi-Cheng, Series Editor, Cheng, Jiuqing, Series Editor, Dumanig, Francisco Perlas, Series Editor, Al-Mabuk, Radhi, Series Editor, Scheper-Hughes, Nancy, Series Editor, Urban, Mathias, Series Editor, Webb, Stephen, Series Editor, Ying, Loo Fung, editor, Halili, Ts. Dr. Siti Hajar, editor, and Mishra, Deepanjali, editor

Published
2023
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28. The $a_0(980)$ in the single Cabibbo-suppressed process $\Lambda_c \to \pi^0\eta p$

Author

Feng, Xue-Chao, Wei, Le-Le, Duan, Man-Yu, Wang, En, and Li, De-Min

Subjects
High Energy Physics - Phenomenology
Abstract

In this work, we have investigated the Cabibbo-suppressed process $\Lambda_c \to \pi^0\eta p$, by taking into account the intermediate scalar state $a_0(980)$, which could be dynamically generated from the $S$-wave pseudoscalar-pseudoscalar interaction within the chiral unitary approach. We have calculated the $\pi^0\eta$ invariant mass distribution, and found that there is a significant structure associated to the $a_0(980)$. We have also roughly estimated the branching fraction $\mathcal{B}(\Lambda_c \to \pi^0\eta p) \sim 10^{-4}$. We encourage our experimental colleagues to measure the process $\Lambda_c \to \pi^0\eta p$ for searching for the state $a_0(980)$ in this reaction., Comment: 7 pages, 5 figures

Published
2020
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39. Protective effect of N-acetylcysteine on acute lung injury in septic rats by inhibiting inflammation, oxidation, and apoptosis

Author

Jian-wei Le, Min Sun, Jian-hua Zhu, and Heng Fan

Subjects
acute lung injury, apoptosis, inflammation, n-acetylcysteine, oxidative stress, sepsis, Medicine
Abstract

Objective(s): Acute lung injury (ALI) is a common comorbidity in patients with sepsis, and finding drugs that can effectively reduce its mortality is a hot spot in current research. The purpose of this study is to explore the protective mechanism of N-acetylcysteine (NAC) on ALI in septic rats.Materials and Methods: We used NAC to intervene in septic rats to evaluate the plasma inflammatory factors and lung tissue pathological damage. Biochemical methods were used to determine the levels of oxidases in lung tissue, the expression of inducible nitric oxide synthase (iNOS) and endothelial nitric oxide synthase (eNOS) proteins, and observed lung tissue cell apoptosis.Results: NAC pretreatment decreased the mortality of septic rats, improved lung tissue pathological damage, reduced the levels of tumor necrosis factor-α, interleukin-1β, interleukin-6, interleukin-8, and malondialdehyde, and increased activity of superoxide dismutase, glutathione peroxidase, and catalase. Moreover, NAC pretreatment significantly decreased iNOS protein expression and increased eNOS protein expression in lung tissue. Meanwhile, NAC significantly decreased the number of apoptosis and the levels of Bax and Caspase-3 mRNA and increased the level of Bcl-2 mRNA in the lung tissue of septic rats. Conclusion: NAC protects ALI in septic rats by inhibiting inflammation, oxidative stress, and apoptosis.

Published
2022
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