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3,908 results on '"Ning Jing"'

108. Differences in Sb2Te3 growth by pulsed laser and sputter deposition

Author

Ning, Jing, Martinez, J. C., Momand, Jamo, Zhang, Heng, Tiwari, Subodh C., Shimojo, Fuyuki, Nakano, Aiichiro, Kalia, Rajiv K., Vashishta, Priya, Branicio, Paulo S., Kooi, Bart J., and Simpson, Robert E.

Subjects
Condensed Matter - Materials Science
Abstract

High quality Van der Waals chalcogenides are important for phase change data storage, thermoelectrics, and spintronics. Using a combination of statistical design of experiments and density functional theory, we clarify how the out-of-equilibrium van der Waals epitaxial deposition methods can improve the crystal quality of Sb2Te3 films. We compare films grown by radio frequency sputtering and pulsed laser deposition (PLD). The growth factors that influence the crystal quality for each method are different. For PLD grown films a thin amorphous Sb2Te3 seed layer most significantly influences the crystal quality. In contrast, the crystalline quality of films grown by sputtering is rather sensitive to the deposition temperature and less affected by the presence of a seed layer. This difference is somewhat surprising as both methods are out-of-thermal-equilibrium plasma-based methods. Non-adiabatic quantum molecular dynamics simulations show that this difference originates from the density of excited atoms in the plasma. The PLD plasma is more intense and with higher energy than that used in sputtering, and this increases the electronic temperature of the deposited atoms, which concomitantly increases the adatom diffusion lengths in PLD. In contrast, the adatom diffusivity is dominated by the thermal temperature for sputter grown films. These results explain the wide range of Sb2Te3 and superlattice crystal qualities observed in the literature. These results indicate that, contrary to popular belief, plasma-based deposition methods are suitable for growing high quality crystalline chalcogenides., Comment: 24 pages, 8 figs

Published
2020

109. Testing for publication bias in meta-analysis under Copas selection model

Author

Duan, Rui, Piao, Jin, Marks-Anglin, Arielle, Tong, Jiayi, Lin, Lifeng, Chu, Haitao, Ning, Jing, and Chen, Yong

Subjects
Statistics - Methodology
Abstract

In meta-analyses, publication bias is a well-known, important and challenging issue because the validity of the results from a meta-analysis is threatened if the sample of studies retrieved for review is biased. One popular method to deal with publication bias is the Copas selection model, which provides a flexible sensitivity analysis for correcting the estimates with considerable insight into the data suppression mechanism. However, rigorous testing procedures under the Copas selection model to detect bias are lacking. To fill this gap, we develop a score-based test for detecting publication bias under the Copas selection model. We reveal that the behavior of the standard score test statistic is irregular because the parameters of the Copas selection model disappear under the null hypothesis, leading to an identifiability problem. We propose a novel test statistic and derive its limiting distribution. A bootstrap procedure is provided to obtain the p-value of the test for practical applications. We conduct extensive Monte Carlo simulations to evaluate the performance of the proposed test and apply the method to several existing meta-analyses.

Published
2020

114. Clinical features and prognosis of advanced intra- and extra-pulmonary neuroendocrine carcinomas

Author

Chen, Xiao-Yun, Guo, Ning-Jing, Guo, Pei-Lin, Yang, Fan, Luo, Qiong, Yang, Sheng, and Chen, Xiang-Qi

Subjects
Lung cancer, Small cell -- Care and treatment, Chemotherapy -- Methods, Cancer -- Chemotherapy
Abstract

ABSTRACT Objective: We examined the clinical features and prognosis of advanced intra- and extra-pulmonary neuroendocrine carcinomas (NECs) to offer additional guidance for the clinical treatment of small-cell lung cancer (SCLC), which is a type of advanced intrapulmonary NEC (IPNECs). Materials and Methods: The clinical data and survival of 123 patients with advanced IPNECs and extrapulmonary NECs (EPNECs) were obtained. We retrospectively examined the corresponding clinical diagnosis and treatment and investigated the significant factors influencing the survival prognosis of patients with NECs. Results: There were 90 cases of IPNECs (including 81 cases of SCLC), and 33 cases of EPNECs. The median overall survival (OS) of IPNECs was significantly longer than that of the EPNECs in the gastrointestinal tract and in the other regions (P < 0.05). The median OS of patients with other IPNECs was longer than that of patients with SCLC (P > 0.05). Multivariate analysis demonstrated that age, liver metastasis, number of cycles of first-line chemotherapy, and chest radiotherapy were risk factors influencing OS in patients with NECs (P < 0.05). Conclusions: The survival of IPNECs was significantly longer than that of EPNECs in the gastrointestinal tract and other regions. Nevertheless, patients with advanced NECs who were older and had liver metastases had a poorer prognosis. Multidisciplinary treatments including multicycle chemotherapy and a combination of chemotherapy and radiotherapy should function significantly in extending the survival of NECs. Keywords: Clinical features, neuroendocrine carcinomas, small-cell lung cancer, survival prognosis, Author(s): Xiao-Yun Chen [1]; Ning-Jing Guo [2]; Pei-Lin Guo [1]; Fan Yang [1]; Qiong Luo [2]; Sheng Yang (corresponding author) [2]; Xiang-Qi Chen (corresponding author) [1] INTRODUCTION Neuroendocrine neoplasms (NENs) [...]

Published
2023
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145. Research on Peak Experience Design in Rural Cultural Tourism Service System: Take Diejiao Water Village of Foshan as an Example

Author

Ding, Xiong, Ning, Jing, Pu, Zenan, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Soares, Marcelo M., editor, Rosenzweig, Elizabeth, editor, and Marcus, Aaron, editor

Published
2022
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148. Diagnostic performance and prognostic value of circulating tumor DNA methylation marker in extranodal natural killer/T cell lymphoma

Author

Tian, Xiao-Peng, Zhang, Yu-Chen, Lin, Ning-Jing, Wang, Liang, Li, Zhi-Hua, Guo, Han-Guo, Ma, Shu-Yun, An, Ming-Jie, Yang, Jing, Hong, Yu-Heng, Wang, Xian-Huo, Zhou, Hui, Li, Ya-Jun, Rao, Hui-Lan, Li, Mei, Hu, Shao-Xuan, Lin, Tong-Yu, Li, Zhi-Ming, Huang, He, Liang, Yang, Xia, Zhong-Jun, Lv, Yue, Liu, Yu-Ying, Duan, Zhao-Hui, Chen, Qing-Yu, Wang, Jin-Ni, Cai, Jun, Xie, Ying, Ong, Choon-Kiat, Liu, Fang, Liu, Yan-yan, Yan, Zheng, Huang, Liang, Tao, Rong, Li, Wen-Yu, Huang, Hui-Qiang, and Cai, Qing-Qing

Published
2023
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