Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Pankaj Kumar Tiwari"'
Publikováno v:
Mathematical Biosciences and Engineering, Vol 21, Iss 1, Pp 1-33 (2024)
Within the framework of a food web, the foraging behavior of meso-carnivorous species is influenced by fear responses elicited by higher trophic level species, consequently diminishing the fecundity of these species. In this study, we investigate a t
Externí odkaz:
https://doaj.org/article/cf65f6ad2ded42bfb2a2475bf207defe
Autor:
Xin Zhao, Lijun Wang, Pankaj Kumar Tiwari, He Liu, Yi Wang, Jianbing Li, Min Zhao, Chuanjun Dai, Qing Guo
Publikováno v:
Mathematical Biosciences and Engineering, Vol 20, Iss 8, Pp 15496-15523 (2023)
In this paper, we investigate a stochastic nutrient-plankton model with impulsive control of the nutrient concentration and zooplankton population. Analytically, we find that the population size is nonnegative for a sufficiently long time. We derive
Externí odkaz:
https://doaj.org/article/25ed6670d6f748bdb129fed578f3a761
Autor:
Qing Guo, Lijun Wang, He Liu, Yi Wang, Jianbing Li, Pankaj Kumar Tiwari, Min Zhao, Chuanjun Dai
Publikováno v:
Journal of Biological Dynamics, Vol 17, Iss 1 (2023)
In this paper, we investigate a reaction-diffusion model incorporating dynamic variables for nutrient, phytoplankton, and zooplankton. Moreover, we account for the impact of time delay in the growth of phytoplankton following nutrient uptake. Our the
Externí odkaz:
https://doaj.org/article/090ee5ec748e499b8b71bd395a8fa539
Autor:
Rabindra Kumar Gupta, Rajanish Kumar Rai, Pankaj Kumar Tiwari, Arvind Kumar Misra, Maia Martcheva
Publikováno v:
Journal of Biological Dynamics, Vol 17, Iss 1 (2023)
Here, we investigate a mathematical model to assess the impact of disinfectants in controlling diseases that spread in the population via direct contacts with the infected persons and also due to bacteria present in the environment. We find that the
Externí odkaz:
https://doaj.org/article/eeb84e9ac78a4bf9b2c6b775316421dd
Publikováno v:
Mathematical Biosciences and Engineering, Vol 18, Iss 1, Pp 182-213 (2021)
In this paper, we propose a mathematical model to assess the impacts of using face masks, hospitalization of symptomatic individuals and quarantine of asymptomatic individuals in combating the COVID-19 pandemic in India. We calibrate the proposed mod
Externí odkaz:
https://doaj.org/article/80340c071ebe449e88db78b4955ae408
Publikováno v:
Journal of Biological Dynamics, Vol 15, Iss 1, Pp 395-429 (2021)
In this paper, we propose a model to assess the impacts of budget allocation for vaccination and awareness programs on the dynamics of infectious diseases. The budget allocation is assumed to follow logistic growth, and its per capita growth rate inc
Externí odkaz:
https://doaj.org/article/173a9bd35172414c9dbdb9118d272835
Publikováno v:
Journal of Biological Dynamics, Vol 15, Iss 1, Pp 580-622 (2021)
In this paper, we investigate the combined effects of fear, prey refuge and additional food for predator in a predator–prey system with Beddington type functional response. We observe oscillatory behaviour of the system in the absence of fear, refu
Externí odkaz:
https://doaj.org/article/2fa79f076254429087a88cf65ac4f86e
Publikováno v:
Mathematical Biosciences and Engineering, Vol 17, Iss 5, Pp 5812-5848 (2020)
Education empowers humans and gets them ready to face challenges of life efficiently. Literacy and social media campaigns make people aware of the tools and techniques requisite for protection against the emerging diseases. In this paper, we investig
Externí odkaz:
https://doaj.org/article/f6962b41f98a425d98018f9bff5019c2
Publikováno v:
Mathematical Biosciences and Engineering, Vol 17, Iss 2, Pp 1272-1317 (2020)
In the present study, we investigate the selective feeding of zooplankton on phytoplankton infected by free-viruses in the presence of environmental toxins in the marine ecosystem. The environmental toxins assume to decrease the growth rate of suscep
Externí odkaz:
https://doaj.org/article/1f026d3f6ef14e0a9f9b7c735076da48
Publikováno v:
Journal of Biological Dynamics, Vol 12, Iss 1, Pp 846-871 (2018)
Global eradication of Guinea worm disease (GWD) is in the final stage but a mysterious epidemic of the parasite in dog population makes the elimination programme challenging. There is neither a vaccine nor an effective treatment against the disease a
Externí odkaz:
https://doaj.org/article/12137643d9fc48a68403f35982dfeaf0