24 research outputs found

    Impact of sodium and potassium ions in identification of offspring gender in high sugar rabbits

    Get PDF
    Impact of sodium and potassium in diet to determine offspring gender in high-sugar rabbit has been investigated. Diabetes mellitus is a chronic, widely spread disease in living species. Sex determination has scientific basis for prevention of genetic diseases in addition to social backgrounds. 21 rabbits (obtained from veterinary college Bangalore), were divided in to three groups in the rabbits male to female 1:1. The first group was made diabetic with Na and K, the second group was non diabetic with Na and K, group third was control unit (Non-diabetic without Na and K). It was found that the delivered offsprings male to female ratio were 3.4:1,4:1 and 1:1 for the first, second and third groups respectively. Also, it was found that non diabetic rabbits fed with normal food yields maximum numbers of offspring (76), while non diabetic rabbits fed with Na and K yields 60 and diabetic rabbits with Na and  yield lowest numbers of offspring (40)

    Adsorption of 2, 4 dinitrophenol from aqueous solutions using ordered mesoporous carbon CMK-3

    Get PDF
    Background and purpose: 2, 4 dinitrophenol is the most important nitrophenol compound that is widely used in paints, adhesives, wood preservatives, solvents, pesticides, and explosive materials. Because of the high toxicity and non-biodegradability of 2, 4 DNP, must be prevented from entering the water body. The aim of this study was to evaluate the performance of ordered mesoporous carbon CMK-3 in adsorption of 2, 4 dinitrophenol from aqueous solutions and the effect of various parameters on the performance of this process. Materials and methods: In this experimental study, mesoporous carbon, CMK-3 was prepared using hexagonal SBA-15 mesoporous silica in a batch reactor. The synthesized materials were characterized by XRD, BET and TEM. After Synthesis of CMK-3, the effect of different parameters were investigated on adsorption process including pH (3-11), contact time (20 -180 min) initial concentration of 2, 4 dinitrophenol (10-500mg/L), and adsorbent dose (0.2-1.2 gr/L). Results: Removal efficiency increased when pH and initial concentration of 2, 4-dinitrophenol decreased and contact time and adsorbant doze increased. The optimum pH was 5 and the equilibrium time was 100 minutes. The optimal dose of CMK-3 was 0.4 g/L and the adsorption capacity of 2, 4 dinitrophenol by CMK-3 was 194 mg/g. Conclusion: In general, mesoporous carbon CMK-3 showed high capacity in removal of 2,4 dinitrophenol from aqueous solutions. Therefore, it can be used in the treatment of wastewater containing 2,4 dinitrophenol. © 2016, Mazandaran University of Medical Sciences. All rights reserved

    Effect of calcium and magnesium in identification of baby in highsugar mammals

    Get PDF
    Effects of calcium and magnesium in diet to determine baby gender in high-sugar mammals have been investigated. Diabetes mellitus is a chronic, widely spread disease in living species. Sex determination has scientific basis for prevention of genetic diseases in addition to social backgrounds.60 rats (obtained from veterinary college Bangalore), were divided in to three groups in the ratio male to female 1:5. The first group was made diabetic with Ca and Mg, the second group was non diabetic with Ca and Mg, group third was control unit (Non-diabetic without Ca and Mg). It was found that the delivered offspring male to female ratios were 4:1, 3.77:1 and 1.05:1 for the first, second and third groups respectively. Also, it was found that non diabetic rats fed with normal food yields maximum numbers of offspring (220), while non diabetic rat fed with Ca and Mg yields 205 and diabetic rats with Ca and Mg yield lowest numbers of offspring (130)

    Application of response surface methodology for optimization of trace amount of diazinon preconcentration in natural waters and biological samples by carbon mesoporous CMK-3

    No full text
    Preconcentration of trace amounts of diazinon by carbon mesoporous CMK-3 in water and biological samples and measurement by high-performance liquid chromatography were investigated. CMK-3 was prepared using hexagonal SBA-15 as the template. The synthesized materials were characterized by X-Ray diffraction (XRD), Fourier transform infrared spectroscopy, Brunaur–Emmet–Teller, transmission electron microscopy and Boehm titration method. The preconcentration procedure was optimized using a multivariate optimization approach following a two-stage process. The effect of analytical parameters including the amount of the CMK-3 as an adsorbent, pH, type and volume of eluent and flow rate of eluent and sample were studied by a screening project, then the effective parameters were optimized by response surface methodology based on central composite design. The average extraction efficiency of diazinon under optimal conditions (CMK-3 dosage = 25 mg, sample flow rate = 2.5 mL min−1, eluent flow rate = 1.25 mL min−1, volume of methanol as an eluent =3.5 mL and initial pH = 6) was 97.11, which agrees well with the predicted response value (97.93). The linearity of the method was in the range of 0.5–100 μg L−1 with a correlation coefficient of 0.997. Enrichment factor, limit of detection and limit of quantification were 285.7, 0.09 and 0.23 μg L−1, respectively. The relative standard deviation (RSD) under optimum conditions was 2.21 (n = 5). The proposed method was applied to determine diazinon in real water and biological samples. Recovery of diazinon from real samples was between 95.80 and 104.94 with an RSD of 0.19–4.65. Thus, this method is suitable for the preconcentration and determination of diazinon in real water and biological samples. Copyright © 2016 John Wiley & Sons, Ltd

    Photocatalytic degradation of phenolic compound (Phenol, resorcinol and cresol) by titanium dioxide photocatalyst on ordered mesoporous carbon (CMK-3) support under UV irradiation

    No full text
    The photocatalytic degradation of phenolic compounds (phenol, m-cresol and resorcinol) was investigated by the TiO 2 nanoparticles on ordered mesoporous carbon (CMK-3) support, as a nanocatalyst. CMK-3 and TiO 2 /CMK-3 were synthesized using SBA-15 as a hard template and their properties were determined by transmission electron microscopy, X-ray powder diffraction and N 2 adsorption�desorption. The results showed that CMK-3 was well synthesized and TiO 2 was properly incorporated into CMK-3. The effect of different parameters such as pH, catalyst concentration, phenolic compound concentration and irradiation time on TiO 2 /CMK-3 catalytic activity was investigated. The results showed that photocatalytic degradation of phenolic compounds was strongly influenced by these factors and the optimum conditions for removing the contaminants were pH = 6, TiO 2 /CMK-3 concentration of 0.15 g/L, phenolic compound concentration of 100 mg/L and irradiation time of 150 min. Under optimum conditions, the total organic carbon removal efficiency for phenol, m-cresol and resorcinol was observed to be 74, 62, and 78, respectively. The highest photo-degradation efficiency was obtained at the slightly acidic and near to neutral pH values compared with the alkaline and acidic range. The stability and reusability of TiO 2 /CMK-3 nanocatalyst were observed to be more than five times which it reveals that the TiO 2 /CMK-3 can be considered as a promising catalyst for the long-term degradation of phenolic compounds from aqueous solutions. © 2019 Desalination Publications. All rights reserved

    Impact of calcium and magnesium ions in identification of offspring gender in rats

    No full text
    Impact of calcium and magnesium in diet to determine offspring gender in rats has been investigated. Sex determination has scientific basis for prevention of genetic diseases in addition to social backgrounds. 20 healthy rats chosen from the first generation of the previous experimented rats were divided into two groups in the ratio male to female 1:5. The first group was Ca and Mg, the second group was control unit without Ca and Mg. It was found that the delivered offspring male to female ratio were 3.3:1 and 1:1 for the first and second groups respectively. Also, it was found that rats fed with (Ca, Mg) food yields maximum numbers of male offspring (77), while rats fed with normal food yields lowest numbers of male offspring (50)

    Evaluation of the Marine Algae Gracilaria and its Activated Carbon for the Adsorption of Ni(II) from Wastewater

    No full text
    The batch removal of Ni2+ from aqueous solution and wastewater using marine dried (MD) red algae Gracilaria and its activated carbon (AC) was studied. For these experiments, adsorption of Ni2+ was used to form two biomasses of AC and MD. Both methods used different pH values, biomass and initial concentration of Ni2+. Subsequently adsorption models and kinetic studies were carried out. The maximum efficiencies of Ni2+ removal were 83.55% and 99.04% for MD and AC respectively developed from it. The experimental adsorption data were fitted to the Langmuir adsorption model. The nickel(II) uptake by the biosorbents was best described by pseudo-second order rate model. The kinetic studies showed that the heavy metal uptake was observed more rapidly by the AC with compared to MD. AC method developed from MD biomass exhibited higher biosorption capacity. Adsorption capacity is related to the pH of solution, pH 5.0 is optimal for nickel. The maximum efficiencies of Ni2+ removal were for AC method. The capacity is related to the pH of solution, pH 5.0 is optimal for nickel. The equilibrium adsorption data are correlated by Langmuir isotherm equation. The adsorption kinetic data can be described by the second order kinetic model

    Impact of calcium and magnesium ions in identification of second generation of offspring gender in rats

    No full text
    Impact of calcium and magnesium in diet to determine offspring gender in rats has been investigated. Sex determination has scientific basis for prevention of genetic diseases in addition to social backgrounds. 20 healthy rats chosen from the second generation of the previous experimented rats were divided into two groups in the ratio male to female 1:5. The first group was Ca and Mg, the second group was control unit without Ca and Mg. It was found that the delivered offspring male to female ratio were 2.7:1 and 1:1 for the first and second groups respectively. Also, it was found that rats fed with (Ca, Mg) food yields maximum numbers of female offspring 73, while rats fed with normal food yields lowest numbers of female offspring 50

    Impact of sodium and potassium ions in identification of offspring gender in hamsters

    No full text
    Impacts of sodium and potassium in diet to determine offspring gender in hamsters have been investigated. Sex determination has scientific basis for prevention of genetic diseases in addition to social backgrounds.20 healthy hamsters chosen from the first generation of the previous experimental hamsters, were divided in to two groups in the hamsters male to female 1:5. The first group was Na and K, the second group was control unit without Na and K. It was found that the delivered offsprings male to female ratio were 2.06:1and 1:1, for the first and second groups respectively. Also, it was found that hamsters fed with (Na, K) food yields, numbers of offspring (135), while hamsters fed with normal food yields, numbers of male offspring (140)
    corecore