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Your search keyword '"R.Y. Zhang"' showing total 2 results
Start Over Author "R.Y. Zhang" Publisher published by elsevier ltd.
2 results on '"R.Y. Zhang"'

1. Periodic solutions of a single species discrete population model with periodic harvest/stock

Author

Jianhong Wu, Yuming Chen, Zhicheng Wang, and R.Y. Zhang

Subjects
Computational Mathematics, Model equation, Population model, Single species, Computational Theory and Mathematics, Modeling and Simulation, Modelling and Simulation, Mathematical analysis, Coincidence, Stock (geology), Mathematics
Abstract

We discuss a discrete population model describing single species growth with periodic harvest/stock. The theory of coincidence degree is applied to show that the model equation admits two periodic solutions. Under minor technical assumptions, we show that one of these two periodic solutions is positive and attracts almost all positive solutions.

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2. Decline of hepatitis B virus load correlate with increase of Th1/Th2 immunity in chronic hepatitis B patients during long-term treatment with entecavir

Author

R.Y. Zhang, Y.Z. Yan, Y.H. Che, Jing You, S.M. Yan, J.H. Huang, H.Y. Chen, Bao-Zhang Tang, S.J. Ma, Hutcha Sriplung, S.F. Rao, Lin Zhuang, Virasakdi Chongsuvivatwong, X. Feng, and Alan Geater

Subjects
Microbiology (medical), Hepatitis B virus, Long term treatment, business.industry, viruses, virus diseases, General Medicine, Entecavir, medicine.disease_cause, Virology, digestive system diseases, lcsh:Infectious and parasitic diseases, Infectious Diseases, Chronic hepatitis, Medicine, lcsh:RC109-216, business, Th1 immunity, medicine.drug
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