Military Academy

About: Military Academy is a based out in . It is known for research contribution in the topics: Population & Fuzzy logic. The organization has 2478 authors who have published 3003 publications receiving 33188 citations.

A study of magnetic properties of Y–Ni–Mn substituted Co2Z-type nanohexaferrites via vibrating sample magnetometry

Abstract: Z-type nanohexaferrites has attracted substantial attention in the field of materials science especially in the research areas of high frequency and microwave devices applications due to their excellent magnetic properties in comparison with the spinel ferrites. A series of Ba1.5Sr1.5Co2−xYxMnyNizFe24−y−zO41 (x = 0.0, 0.05, 0.10, 0.15, 0.20; y = z = 0.0, 0.25, 0.50, 0.75, 1.00) Z-type hexaferrites were fabricated with the help of sol–gel auto-combustion method in order to achieve its better microstructural and magnetic properties. The crystallographic structure of prepared specimens was characterized by XRD which revealed the presence of Z-type single-phase hexagonal structure with some additional phases accompanied by P63/mmc space group. The average particle size calculated by Scherrer formula was found to be in the range of 40–55 nm. The FTIR spectrum of synthesized specimens was observed in the range of 400–600 cm−1 which confirms our microstructural results to a great extent. From the M–H hysteresis loops, magnetic parameters such as saturation magnetization (Ms) (44.04–35.59 emu/g) and coercivity (Hc) (42.3–248.96 Oe) were measured and it was observed that the synthesized specimens exhibit excellent characteristics of soft ferrite which make it suitable for the multilayer chip inductors, electromagnets, and magnetic storage devices applications.

Increased γ‐globin gene expression in β‐thalassemia intermedia patients correlates with a mutation in 3′HS1

Abstract: We report a novel set of genetic markers in the DNaseI hypersensitive sites comprising the human beta-globin locus chromatin hub (CH), namely HS-111 and 3'HS1. The HS-111 (-21 G>A) and 3'HS1 (+179 C>T) transitions form CH haplotypes, which occur at different frequencies in beta-thalassemia intermedia and major patients and normal (nonthalassemic) individuals. We also show that the 3'HS1 (+179 C>T) variation results in a GATA-1 binding site and correlates with increased fetal hemoglobin production in beta-thalassemia intermedia patients. In contrast, the HS-111 (+126 G>A) transition, found in three normal chromosomes, is simply a rare polymorphism. We conclude that the CH haplotypes are useful genetic determinants for beta-thalassemia major and intermedia patients, while the 3'HS1 (+179 C>T) mutation may have functional consequences in gamma-globin genes expression.

Oxidized and Ethylenediamine-Functionalized Multi-Walled Carbon Nanotubes for the Separation of Low Concentration Arsenate from Water

Abstract: In this work multiwalled carbon nanotubes (MWCNTs) modified by oxidation (o-MWCNTs) and by aminofunctionalization (e-MWCNTs) were examined as potential adsorbents for arsenate removal from water. Adsorption characteristics of raw and modified MWCNTs were investigated in batch adsorption experiments. The influence of solution pH (pH range 3–10), contact time, and temperature (25, 35, and 45°C) were studied. Ethylenediamine-functionalized MWCNTs have the greatest affinity for arsenate ions, followed by o-MWCNTs and raw-MWCNTs. The obtained experimental data for raw- and o-MWCNTs fitted Sips isotherm model, while for the e-MWCNTs, the Freundlich model provided the best fit to the experimental points. The maximum adsorption capacity for arsenate ions was achieved using e-MWCNTs, 12.18 mg g−1. The presence of the arsenate on the adsorbent is confirmed by FTIR spectroscopy. Thermodynamic studies indicated the spontaneity and endothermic nature of the adsorption. Sodium hydroxide solution (0.1 M) was found to de...

A Methionine-Restricted Diet and Endurance Exercise Decrease Bone Mass and Extrinsic Strength but Increase Intrinsic Strength in Growing Male Rats

Abstract: Dietary methionine restriction (MR) has been suggested to be comparable to endurance exercise with respect to its beneficial effects on health. To further investigate the effects of MR and endurance exercise on growing bone, 7-wk-old male Sprague-Dawley rats were fed different l-methionine (Met)-containing diets with or without endurance exercise intervention (Ex; 0.86% Met, 0.52% Met, 0.17% Met, 0.86% Met-Ex, 0.52% Met-Ex, and 0.17% Met-Ex groups). After an 8-wk intervention period, exercise-trained rats had a 9.2% lower body weight (BW) than did sedentary rats (P < 0.05). Additionally, 0.17% Met-fed rats had 32% lower BW when compared with rats fed the other 2 diets (P < 0.05). Serum osteocalcin was lower in the 0.17% Met-Ex group compared with the other 2 exercise groups and the 0.17% Met group (P < 0.05). Serum concentrations of C-terminal telopeptide of type 1 collagen were lower in exercise-trained and 0.17% Met-fed rats than in sedentary rats and rats fed the other 2 diets (P < 0.05 for both). Rats fed the 0.17% Met diet had lower trabecular bone volume, bone mineralization activities, and bone mineral content (BMC; e.g., total, cortical, and spongy BMC) and bone mineral density (BMD; e.g., total and spongy BMD) indices compared with rats fed the other 2 diets (P < 0.05). Exercise-trained rats also had lower bone mineralization activity, trabecular osteoclast density, total BMC, cortical BMC, and total BMD compared with sedentary rats (P < 0.05). In total BMD, only the 0.17% Met-Ex group had values lower than the other 2 exercise groups and the 0.17% Met group (P < 0.05). Compared with rats fed the other 2 diets and sedentary rats, the femora of 0.17% Met-fed and exercise-trained rats, respectively, had smaller size and/or lower extrinsic strength but enhanced intrinsic biomechanical properties (P < 0.05). The results indicate that MR and endurance exercise caused lower whole bone mass, size, and/or strength but might enhance intrinsic bone strength.

Synthesis of nanocauliflower ZnO photocatalyst by potato waste and its photocatalytic efficiency against dye

Abstract: Using different amount of potato peels, ZnO photocatalysts (ZO-PC) have been prepared by facile combustion process followed by the calcination at 500 °C for 10 min, and their obtained nanomaterials have been investigated through various techniques like powder X-ray diffraction (XRD), scanning electron microscope (SEM) combined with EDX, transmission electron microscope (TEM), Fourier transform infrared spectroscopy (FTIR), and UV–Vis spectroscopy in DRS mode. Moreover, the spectrophotometry technique has been employed to investigate the degradation of methylene blue (MB) under UV irradiation light (λ < 400 nm) by fabricated ZO-PCs. Among them, the lowest peel-containing sample was exhibited enhanced photocatalytic activity as compared to others also optical bandgap energy (Eg) was increased with increasing of peels from 3.39 to 3.49 eV.