Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Tiantian REN"'
Autor:
Jun SU, Xigang WANG, Hongxia YANG, Lingling CHE, Tiantian REN, Chunqing YANG, Ling ZHAO, Sheng WANG
Publikováno v:
Zhongguo shuxue zazhi, Vol 37, Iss 2, Pp 145-150 (2024)
Objective To study the molecular mechanism of 95 samples of serological ABO subtypes. Methods A total of 95 samples with discrepancy between forward and reverse blood grouping were subjected to serological confirmation, and genotyped by polymerase ch
Externí odkaz:
https://doaj.org/article/ad3bc06267b84df99856cfb646a8cfbb
Publikováno v:
BMC Medical Imaging, Vol 23, Iss 1, Pp 1-8 (2023)
Abstract Objectives This study constructed a nomogram based on grayscale ultrasound features and real-time shear wave elastography (SWE) parameters to predict thyroid cancer. Methods Clinical data of 217 thyroid nodules of 201 patients who underwent
Externí odkaz:
https://doaj.org/article/e97dd4c642a8452baf34a5de0dd87871
Publikováno v:
Plants, Vol 13, Iss 7, p 1016 (2024)
Grafting is widely used to improve the resistance to abiotic stresses in cucurbit plants, but the effect and molecular mechanism of grafting on cold stress are still unknown in melon. In this study, phenotypic characteristics, physiological indexes,
Externí odkaz:
https://doaj.org/article/394198814feb4f479f3e72e44fa17b92
Publikováno v:
IEEE Access, Vol 11, Pp 1654-1670 (2023)
The traditional portfolio theory has relied heavily on historical asset returns while ignoring future information. Based on ensemble learning and maximum Sharpe ratio portfolio theory, this paper proposes a two-stage portfolio optimization method by
Externí odkaz:
https://doaj.org/article/29cfafc6756448ef8c54b4197b0eb7f6
Autor:
Lauren Petrullo, Tiantian Ren, Martin Wu, Rudy Boonstra, Rupert Palme, Stan Boutin, Andrew G. McAdam, Ben Dantzer
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-12 (2022)
Abstract The gut microbiome impacts host health and fitness, in part through the diversification of gut metabolic function and pathogen protection. Elevations in glucocorticoids (GCs) appear to reduce gut microbiome diversity in experimental studies,
Externí odkaz:
https://doaj.org/article/a9bb311156fb464095a3d01c967aefba
Publikováno v:
Journal of Management Science and Engineering, Vol 4, Iss 2, Pp 142-157 (2019)
The existing literature on investment and reinsurance is limited to the study of continuous-time problems, while discrete-time problems are always ignored by researchers. In this study, we first discuss a multi-period investment and reinsurance optim
Externí odkaz:
https://doaj.org/article/086b83536d74436d8cde3f24f3781837
Publikováno v:
IEEE Access, Vol 6, Pp 9785-9791 (2018)
In satellite anti-radiation reinforcement designs, it is necessary to specify the anti-radiation reinforcement index of the selected electronic components to ensure that the satellite has enough antiradiation adaptability. Traditional probability dis
Externí odkaz:
https://doaj.org/article/066c0f4aff554ffb906c400e3cd3a783
Autor:
Tiantian Ren, Stan Boutin, Murray M. Humphries, Ben Dantzer, Jamieson C. Gorrell, David W. Coltman, Andrew G. McAdam, Martin Wu
Publikováno v:
Microbiome, Vol 5, Iss 1, Pp 1-14 (2017)
Abstract Background Our understanding of gut microbiota has been limited primarily to findings from human and laboratory animals, but what shapes the gut microbiota in nature remains largely unknown. To fill this gap, we conducted a comprehensive stu
Externí odkaz:
https://doaj.org/article/333bf0b0906e4ebcb9d9725eb325b843
Publikováno v:
Mathematics, Vol 7, Iss 9, p 857 (2019)
Most of the existing literature on optimal investment-reinsurance only studies from the perspective of insurers and also treats the investment-reinsurance decision as a continuous process. However, in practice, the benefits of reinsurers cannot be ig
Externí odkaz:
https://doaj.org/article/820d93623ab044379c42279f07db59de
Publikováno v:
Mathematics, Vol 7, Iss 8, p 723 (2019)
In this paper, we propose a generalized multiperiod mean-variance portfolio optimization based on consideration of benchmark orientation and intertemporal restrictions, in which the investors not only focus on their own performance but also tend to c
Externí odkaz:
https://doaj.org/article/64420e119dfb423dbacbade3f2ee9d7a