The endocrine disrupting substances represent major challenge to aquaculture and the most widespread one is 4-nonylphenol (4-NP). Pyrazole possess an interesting broad spectrum of pharmacological actions. Therefore, this study was designed to investigate the therapeutic potential of five novel thieno [2,3-c] pyrazole compounds in African catfish (Clarias gariepinus) on the hematotoxic and electrolyte disruptor influences of 4-NP. The hemato-electrolyte disturbance induced by 4-NP was well proved by many examined endpoints. On the other hand, thienopyrazole compounds exhibited the ability to modulate the previous toxicological impact by different levels based on the modification in structures and properties. This study provided insight into the endless therapeutic treasures of newly synthesized complexes, and a driving force for its application on the other clinically relevant problems in fish.

In this survey, fishes were obtained from four localities: Assiut as a control and Beheira, Alexandria and Kafr EL-Sheikh; three farms from each governate as farmed monosex produced using Methyltestosterone (MT). Serum MT, total antioxidant capacity (TAC), malondialdehyde (MDA), and total peroxides (TPX) were estimated, followed by calculation of oxidative stress index (OSI). MT concentration in the serum of fishes farmed at Assiut showed no detectable levels of hormonal residues, while the monosex farms showed high levels of MT concentration in the serum of the sampled fishes. In comparison with control fishes of Assiut farms, serum TAC levels of monosex fishes collected from farms of Beheira and Alexandria were significantly lower. Serum TPX content of the monosex fishes obtained from Alexandria farms were significantly higher than the wild fishes obtained from Assiut farms. Calculated from ratio of serum TPX content and TAC concentration, OSI illustrated a significant difference between control fishes collected from Assiut and monosex fishes collected from Beheira. Although few significant changes were found in the examined oxidative stress endpoints, the results of this work put our foot in the beginning of road to link hormonally sex reversal practice with oxidative stress induction, and provocative for other researchers to invade this field of research more deeply utilizing more specific relevant markers and cutting-edge techniques.

The main aim of the present study was to obtain a basic knowledge of the hematology and biochemistry of the Red Sea seabream Diplodus noct. The samples were collected from the Red sea at Hurghada, Egypt. Baseline values for hematological parameters including Red Blood Corpuscles (RBCs), Hematocrit (HCT), Hemoglobin (Hb), Mean cell hemoglobin concentration (MCHC), mean cell hemoglobin (MCH) and mean cell volume (MCV) and biochemical parameters including AST, ALT, glucose, total protein and urea were established. Erythrocytes, thrombocytes and three types of leucocytes, lymphocytes, neutrophils and eosinophils, were distinguished, characterized and measured. The morphological and cytochemical aspects of peripheral blood cells of Diplodus noct were studied by light microscopy. This investigation may be helpful as a tool to monitor the health status of Diplodus noct and will grant early detection of clinical pathology.

NULL

The main aim of this paper is to define and study of the Chebyshev matrix polynomials. An explicit representation, a three-term matrix recurrence relations for the Chebyshev matrix polynomials are given. These polynomials appear as finite series solutions of second order matrix differential equations. The expansion Chebyshev matrix polynomials in series of Hermite matrix polynomials and the Christoffel formula of summation are established.

The principal object of this work is to define and study of a new kummer’s matrix function, namely, composite l(m, n)-Kummer’s matrix functionof two complex variables. The radius of regularity and matrix recurrence relationson this function are obtained. The effect of differential operator (D) on thisfunction is investigated and a solution of a certain partial differential equation is established.

An analysis has been carried out to study a problem of the natural convective boundary-layer flow of a nanofluid past a non-linear stretching surface with convective boundary condition in the presence of yield stress in porous media. The model used for the nanofluid incorporates the effects of Brownian motion and thermophoresis. The local similarity solutions are obtained by using an efficient numerical shooting technique with a fourth-order Runge–Kutta scheme (MATLAB package). The results corresponding to the dimensionless temperature profiles and the reduced Nusselt number, Sherwood number and skin friction coefficient are displayed graphically for various pertinent parameters. It was found that Nusselt number ( Re − 1 = 2 x Nu x ) and Sherwood number ( Re − 1 = 2 x Sh x ) is a decreasing function of the yield stress parameter Ω and the porous media parameter ξ , while the skin friction coefficient ( Re 1 = 2 x C f ) is an increasing function of the yield stress parameter Ω and the porous media parameter ξ

The aim of this paper is to calculate the analytical form of the equation of state for dilute relativistic plasma. We obtained the excess free energy and pressure in the form of a convergent series expansion in terms of the thermal parameter μ where μ = mc^2/KT, m is the mass of charge, c is the speed of light, K is the Boltzmann’s constant, and T is the absolute temperature. The results are discussed and compared with previous work of other authors.

The aim of this article is to calculate the thermodynamic functions of a neutron star in curved space. We obtained equation of state (EOS) and the excess free energy for a neutron star in curved space up to order n^4, where n is the density of particles.

We report here the structural and superconducting properties of Bi2Sr2CaYxCu2Oy superconductors with various x values (0.00 ≤ x ≤ 0.50) by using the resistivity and ac susceptibility measurements. It is found that addition of Y3+ does not influence the phase purity of Bi:2212, while c-parameter and orthorhombic distortion are affected. Furthermore, the critical temperatures Tc(R = 0) are increased from 92 K for Y = 0 up to 106 K by 0.15 of Y, followed by a decrease with increasing Y up to 0.50. It is interesting to note the resistivity of the samples with Y = 0.075 and 0.15 reaching to true zero value only at low dc currents up to 2 mA. Interestingly, the onset temperature of diamagnetism obtained from susceptibility data remains nearly unchanged at 94 K up to Y= 0.30, flowed by a decrease to 86 K at Y = 0.50. The superconducting volume fraction and critical currents are improved by Y addition up to 0.15, followed by a decrease with increasing Y up to 0.50. These results are explained in terms of the effects of excess oxygen, secondary phases, and carrier concentration per Cu ions which are produced by Y addition in Bi:2212 system.