Numerical study of Zika model as a mosquito-borne virus with non-singular fractional derivative

2021 ◽  
Author(s):  
Sachin Kumar ◽  
Dia Zeidan
Keyword(s):  
Fractional Derivative ◽  
Zika Virus ◽  
Numerical Study ◽  
Asymptomatic Carrier ◽  
Virus Transmission ◽  
Model Parameters ◽  
Human Society ◽  
Sexual Interaction ◽  
Virus Model ◽  
Global Threat

Zika virus infection, which is closely related to dengue, is becoming a global threat to human society. The transmission of the Zika virus from one human to another is spread by bites of Aedes mosquitoes. Recent studies also reveal the fact that the Zika virus can be transmitted by sexual interaction. In this paper, we use the fractional derivative with Mittag–Leffler non-singular kernel to study Zika virus transmission dynamics. This fractional is also known as the Atangana–Baleanu Caputo (ABC) derivative which is employed for the resulting system of ordinary differential equations. We investigate the proposed Zika virus model by using the Legendre spectral method. The model parameters are estimated and validated numerically by investigating the effect of fractional order exponent on various cases such as Susceptible human, infected human, asymptomatic carrier, exposed human, and recovered human. Numerical results obtained with the proposed method have been compared with exact solutions, showing in all parameters a very satisfactory agreement.

NUMERICAL STUDY FOR ZIKA VIRUS TRANSMISSION WITH BEDDINGTON-DEANGELIS INCIDENCE RATE

2019 ◽  
Vol 111 (1) ◽  
pp. 145-157 ◽  
Author(s):  
Puji Andayani ◽  
Lisa Risfana Sari ◽  
Agus Suryanto ◽  
Isnani Darti
Keyword(s):  
Incidence Rate ◽  
Zika Virus ◽  
Numerical Study ◽  
Virus Transmission

Stability and numerical study of theoretical model of Zika virus transmission

2020 ◽  
Vol 10 (2) ◽  
pp. 141
Author(s):  
Maghnia Hamou Maamar ◽  
Leila Bouzid ◽  
Omar Belhamiti ◽  
Fethi Bin Muhammad Belgacem
Keyword(s):  
Theoretical Model ◽  
Zika Virus ◽  
Numerical Study ◽  
Virus Transmission

Stability and numerical study of theoretical model of Zika virus transmission

2020 ◽  
Vol 10 (2) ◽  
pp. 141
Author(s):  
Fethi Bin Muhammad Belgacem ◽  
Omar Belhamiti ◽  
Leila Bouzid ◽  
Maghnia Hamou Maamar
Keyword(s):  
Theoretical Model ◽  
Zika Virus ◽  
Numerical Study ◽  
Virus Transmission

A mathematical analysis and simulation for Zika virus model with time fractional derivative

2020 ◽  
Author(s):  
Muhammad Farman ◽  
Aqeel Ahmad ◽  
Ali Akgül ◽  
Muhammad Umer Saleem ◽  
Muhammad Rizwan ◽  
...  
Keyword(s):  
Fractional Derivative ◽  
Mathematical Analysis ◽  
Zika Virus ◽  
Virus Model ◽  
Time Fractional Derivative

Increase in Reported Prevalence of Microcephaly in Infants Born to Women Living in Areas with Confirmed Zika Virus Transmission During the First Trimester of Pregnancy — Brazil, 2015

2016 ◽  
Vol 65 (9) ◽  
Author(s):  
Wanderson Kleber de Oliveira ◽  
Juan Cortez-Escalante ◽  
Wanessa Tenório Gonçalves Holanda De Oliveira ◽  
Greice Madeleine Ikeda do Carmo ◽  
Cláudio Maierovitch Pessanha Henriques ◽  
...  
Keyword(s):  
Zika Virus ◽  
Virus Transmission ◽  
First Trimester ◽  
First Trimester Of Pregnancy

Increase in Reported Prevalence of Microcephaly in Infants Born to Women Living in Areas with Confirmed Zika Virus Transmission During the First Trimester of Pregnancy — Brazil, 2015

2016 ◽  
Vol 65 (9) ◽  
pp. 242-247 ◽  
Author(s):  
Wanderson Kleber de Oliveira ◽  
Juan Cortez-Escalante ◽  
Wanessa Tenório Gonçalves Holanda De Oliveira ◽  
Greice Madeleine Ikeda do Carmo ◽  
Cláudio Maierovitch Pessanha Henriques ◽  
...  
Keyword(s):  
Zika Virus ◽  
Virus Transmission ◽  
First Trimester ◽  
First Trimester Of Pregnancy

scholarly journals Performance characterization and application of composite adsorbent LiCl@ACFF for moisture harvesting

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
X. Y. Liu ◽  
W. W. Wang ◽  
S. T. Xie ◽  
Q. W. Pan
Keyword(s):  
Water Uptake ◽  
Vital Role ◽  
Silica Sol ◽  
Activated Carbon Fiber ◽  
Low Grade ◽  
Human Society ◽  
Water Harvesting ◽  
Energy Estimation ◽  
Carbon Fiber Felt ◽  
Global Threat

AbstractFreshwater scarcity is a global threat to modern era of human society. Sorption-based atmospheric water harvesting (AWH) is prospective to provide fresh water for remote water-stressed areas lacking in water and electricity. Adsorbent material plays a vital role in such AWH systems. Here, we report a solid adsorbent synthesized by impregnating hygroscopic salt lithium chloride (LiCl) into solidified activated carbon fiber felt (ACFF modified by silica sol). Composite samples immersed with different mass concentrations of silica sol are prepared and characterized for dynamic water uptake, equilibrium water uptake, textural and thermal properties. AS5Li30 (ACFF + 5 wt% silica gel + 30 wt% LiCl) exhibits an efficient water uptake of 2.1 g/g at 25 °C and 70% relative humidity (RH). The material further demonstrates a heat storage capacity of 5456 kJ/kg. Its low regeneration temperature (< 80 °C) and good cycle stability make it feasible to be used in practical water production applications, driven by solar energy and other low-grade energy. Estimation results show that water harvesting unit can produce 1.41 gH2O/gAS5Li30 under 25 °C and 75% RH.

scholarly journals Zika Virus Transmission-Region of the Americas, May 15, 2015-December 15, 2016

2017 ◽  
Vol 17 (6) ◽  
pp. 1681-1686 ◽  
Author(s):  
J. Ikejezie ◽  
C. N. Shapiro ◽  
J. Kim ◽  
M. Chiu ◽  
M. Almiron ◽  
...  
Keyword(s):  
Zika Virus ◽  
Virus Transmission ◽  
Transmission Region

A Numerical Study of Sensitivity Coefficients for a Model of Amyloid Precursor Protein and Tubulin-Associated Unit Protein Transport and Agglomeration in Neurons at the Onset of Alzheimer's Disease

2019 ◽  
Vol 141 (3) ◽  
Author(s):  
I. A. Kuznetsov ◽  
A. V. Kuznetsov
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Amyloid Precursor Protein ◽  
Tau Protein ◽  
Protein Transport ◽  
Numerical Study ◽  
Amyloid Β ◽  
Precursor Protein ◽  
Model Parameters ◽  
In The Beginning

Modeling of intracellular processes occurring during the development of Alzheimer's disease (AD) can be instrumental in understanding the disease and can potentially contribute to finding treatments for the disease. The model of intracellular processes in AD, which we previously developed, contains a large number of parameters. To distinguish between more important and less important parameters, we performed a local sensitivity analysis of this model around the values of parameters that give the best fit with published experimental results. We show that the influence of model parameters on the total concentrations of amyloid precursor protein (APP) and tubulin-associated unit (tau) protein in the axon is reciprocal to the influence of the same parameters on the average velocities of the same proteins during their transport in the axon. The results of our analysis also suggest that in the beginning of AD the aggregation of amyloid-β and misfolded tau protein have little effect on transport of APP and tau in the axon, which suggests that early damage in AD may be reversible.

scholarly journals Sequential Infection of Aedes aegypti Mosquitoes with Chikungunya Virus and Zika Virus Enhances Early Zika Virus Transmission

Insects ◽  
2018 ◽  
Vol 9 (4) ◽  
pp. 177 ◽  
Author(s):  
Tereza Magalhaes ◽  
Alexis Robison ◽  
Michael Young ◽  
William Black ◽  
Brian Foy ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Blood Meal ◽  
Zika Virus ◽  
Chikungunya Virus ◽  
Vector Competence ◽  
Virus Transmission ◽  
Mosquito Vector ◽  
Molecular Aspects ◽  
Virus Interactions ◽  
Sequential Infection

In urban settings, chikungunya, Zika, and dengue viruses are transmitted by Aedes aegypti mosquitoes. Since these viruses co-circulate in several regions, coinfection in humans and vectors may occur, and human coinfections have been frequently reported. Yet, little is known about the molecular aspects of virus interactions within hosts and how they contribute to arbovirus transmission dynamics. We have previously shown that Aedes aegypti exposed to chikungunya and Zika viruses in the same blood meal can become coinfected and transmit both viruses simultaneously. However, mosquitoes may also become coinfected by multiple, sequential feeds on single infected hosts. Therefore, we tested whether sequential infection with chikungunya and Zika viruses impacts mosquito vector competence. We exposed Ae. aegypti mosquitoes first to one virus and 7 days later to the other virus and compared infection, dissemination, and transmission rates between sequentially and single infected groups. We found that coinfection rates were high after sequential exposure and that mosquitoes were able to co-transmit both viruses. Surprisingly, chikungunya virus coinfection enhanced Zika virus transmission 7 days after the second blood meal. Our data demonstrate heterologous arbovirus synergism within mosquitoes, by unknown mechanisms, leading to enhancement of transmission under certain conditions.

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