MicroRNAs (miRNAs) are endogenous ∼23 nt RNAs that play important gene-regulatory roles in animals and plants by pairing to the mRNAs of protein-coding genes to direct their posttranscriptional repression. This review outlines the current understanding of miRNA target recognition in animals and discusses the widespread impact of miRNAs on both the expression and evolution of protein-coding genes.

MicroRNAs: Target Recognition and Regulatory Functions

In the present research analysis we have addressed comparative investigation of radiative electrically conducting Casson nanofluid. Nanofluid Flow is assumed over a nonlinearly stretching sheet. Heat transport analysis is carried via joule dissipation, thermal behavior and convective boundary condition. To employ the radiative effect radiation was involved to show the diverse states of nanoparticles. Furthermore entropy optimization with activation energy and chemical reaction are considered. Thermodynamics 2nd law is applied to explore entropy generation rate. Nonlinear expression is simplified through similarity variables. The reduced ordinary system is tackled through optimal approach. Flow pattern was reported for wide range of scrutinized parameters. Computational consequences of velocity drag force, heat flux and concentration gradient are analyzed numerically in tables. Results verify that conduction mode augments with enhance of magnetic parameter.Increasing radiation boosts the temperature and entropy. Activation energy corresponds to augmented concentration. Heat transmission rate augments with the consideration of radiation source term.

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Radiative MHD Casson Nanofluid Flow with Activation energy and chemical reaction over past nonlinearly stretching surface through Entropy generation

Atangana-Baleanu fractional derivative has been applied to study heat transfer problem of magnetohydrodynamic (MHD) Maxwell fluid over a vertical plate embedded in a porous medium. The analytical solutions have been obtained for temperature distribution and velocity field by employing Laplace transforms technique for both sine and cosine oscillations of the plate. The general solutions have been expressed in terms of Fox-H function satisfying imposed conditions. The results are plotted graphically and discussed for embedded parameters such as magnetic field, Maxwell parameter, porous medium, Prandtl number and fractional parameter.

Application of Atangana-Baleanu fractional derivative to convection flow of MHD Maxwell fluid in a porous medium over a vertical plate

Evaluating the unsteady Casson nanofluid over a stretching sheet with solar thermal radiation: An optimal case study

Generalized differential quadrature analysis of unsteady three‐dimensional MHD radiating dissipative Casson fluid conveying tiny particles

Natural convection flow past an oscillating plate with newtonian heating

In this article, Casson Nanofluid boundary layer flow over non-straight slanted extending surface with Soret and Dufour impact scrutinized. Model used in this study is based on Buongiorno model for the thermal efficiencies of the fluid flows in the existence of Brownian motions and thermophoresis properties. The nonlinear problem for Casson Nanofluid flow over inclined channel is modeled to think about the heat and mass exchange phenomenon by considering portent flow parameters to intensified boundary layers. The overseeing nonlinear partial differential equations are changed to nonlinear ordinary differential equations and afterward illustrated numerically by methods for the Keller-Box conspire. A comparison of the established results in the lack of the incorporated effects is performed with the available outcomes of Khan and Pop [1] and recognized in a nice settlement. Numerical and graphical results are also presented in tables and graphs.

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Keller-Box Scheme for Casson Nanofluid Flow over Nonlinear Inclined Surface with Soret and Dufour Effects

In this article we consider the unsteady rotating flow of a magnetohydrodynamic (MHD) Oldroyd-B fluid for both constant and variable accelerated flows in a porous half space. The modified Darcy's law for an Oldroyd-B fluid is employed to model the governing equations. The exact solutions for these governing equations are obtained by employing the Laplace transform technique. The graphs are plotted for different values of dimensionless parameters. It is observed that the velocity field is strongly influenced by the porosity of the medium, applied magnetic field, fluid parameters and angular frequency. As a special case the obtained solutions are reduced to those for a hydrodynamic fluid in a non-porous medium. The corresponding solutions for a hydromagnetic Newtonian fluid in a porous medium are also recovered.

Hydromagnetic rotating flows of an oldroyd-b fluid in a porous medium

Extent of genetic variability and interrelationship among agronomic traits were estimated in a set of eight linseed genotypes. Heritability was 82 to 89% for plant height, number of capsules plant -1 , 1000 seed weight and seed yield plant -1 . Except plant height all the traits were positively and significantly associated with seed yield. Seed yield plant -1 had highly significant positive correlation with number of branches plant -1 , number of capsules plant -1 , significant with 1000 seed weight and nonsignificant negative correlation with plant height. Path coefficient analysis revealed highest direct effect of number of capsules plant -1 followed by plant height, 1000 seed weight and number of branches plant -1 on seed yield. Hybridization programme involving genotypes of higher mean values viz; LS-77, LS-83 and LS-72 may generate desirable recombinants provided single plants would be selected on the basis of number of capsules plant -1 and seed yield plant -1 in early segregating generations.

Linseed Improvement Through Genetic Variability, Correlation and Path Coefficient Analysis

In this paper, we investigated the magnetohydrodynamic (MHD) stagnation-point flow of micropolar nanofluid over a stretching sheet. A uniform magnetic field is applied normal to the flow. Nonlinear micropolar nanofluid problem in the presence of the strong concentration of microelements is modeled and then solved by numerical techniques. A parametric study of the involved parameters in the presence of spin gradient viscosity is conducted, and representative set of numerical results is illustrated in the graphical and tabular forms. The complete formulation of the Keller-box method for the considered flow problem is given, and a comparison of the obtained results is performed with the previous published results. The comparison shows that our present results have an excellent match with the previous results in a limiting case. We found that the non-dimensional temperature and its associated thermal boundary layer thickness are enhanced when we use the larger values of thermophoresis and Brownian motion parameter. The non-dimensional concentration is higher for larger thermophoresis parameter but smaller for higher Brownian motion parameter. It is also observed that the smaller values of Lewis number correspond to higher non-dimensional concentration and its associated boundary layer thickness.

Muhammad Imran Anwar

Papers

Natural convection flow past an oscillating plate with newtonian heating

Keller-Box Scheme for Casson Nanofluid Flow over Nonlinear Inclined Surface with Soret and Dufour Effects

Hydromagnetic rotating flows of an oldroyd-b fluid in a porous medium

Linseed Improvement Through Genetic Variability, Correlation and Path Coefficient Analysis

Numerical study for MHD stagnation-point flow of a micropolar nanofluid towards a stretching sheet