Weiwei Zhang

1 month ago | onlinelibrary.wiley.com | Weiwei Zhang |Hui Li |Dongdong Li

References , , , and . 2019. “Spillovers, Subsidies, and Second-Best Socially Optimal R&D.” Journal of Public Economic Theory 21, no. 6: 1200–1220. , and . 2019. “Cournot vs. Bertrand in Mixed Markets With R&D.” North American Journal of Economics and Finance 48: 265–271. 2003. “R&D Competition When Firms Choose Variance.” Journal of Economics and Management Strategy 12, no. 1: 139–150. , and . 2023.

Nov 12, 2024 | bmccancer.biomedcentral.com | Yinggang Xu |Lifeng Huang |Jue Wang |Jinzhi He |Ye Wang |Weiwei Zhang | +7 more

Based on previous studies, the incidence of grade 3–4 neutropenia for the control group was assumed to be 40%, and we hypothesized that the incidence in the experimental group would be halved to 20%. Using a two-sided significance level (α) of 0.05 and a power of 80%, the calculated sample size for each group was 79 patients. Given the short duration of the study, we anticipate a low rate of loss to follow-up.

Oct 2, 2024 | mdpi.com | Menghao Li |Miao Liu |Weiwei Zhang |Wenfeng Guo

All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.

Aug 12, 2024 | mdpi.com | Menghao Li |Miao Liu |Weiwei Zhang |Wenfeng Guo

All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.

Jul 22, 2024 | mdpi.com | Weiwei Zhang |Ying Tang

All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.