JFAS_Vol 05 N 02
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Item Fluoride Reduction From Water By Precipitation With Calcium Chloride And Lime(University of Eloued جامعة الوادي, 2013-07-01) Atia, D.; Hoggui, A.ElOued is known for some diseases caused by fluoride concentration in drinkable water. To reduce it, we have chosen a sample with the highest content of fluoride among many sources in order to precipitate it with Ca(OH)2and CaCl2. In order to get better reduction yield of fluoride, a study has been done on the influencingparameters (concentration, pH, temperature) to choose the best conditions. The remove of fluoride is favorable at low concentration of Ca(OH)2, at room temperature and normal acidity.Item Factors Livestock And Milking Associated With Risk Of Mastitis In Cattle Dairy Farms In Aboveground Of The Tunisia Coastal Semi-arid(University of Eloued جامعة الوادي, 2013-07-01) M’sadak, Y.; Mighri, L.; Haj Mbarek, R.; Kraiem, K.This study was carried out in the Sahel of Tunisia (Monastir region) on a sample covering 40 cattle herd’s type above ground. We deduced the mastitis risk factors during the survey during visits for breeding and milking as well as from morphological and hygienic cow’s assessments. The data’s descriptive analysis has highlighted some significant effect factors on cellular levels and the risk of developing mastitis. For individual cell count (ICC), the significant effect factors (P <0.05) are: free stall, milking machine cleaning with only water, the poor condition of the piping, not elimination of the first milk jets and bad cleanliness of udders and the back legs of cows, whereas the herd cell count (HCC), the significant factors (P <0.05) are: cleaning the milking machine with water only, the frequency pulse (FP) is too high or low.Item Valorization Aboveground Of The Extract Of Compost Ovine For Fertigation Of The Vegetables Plants In Tunisia(University of Eloued جامعة الوادي, 2013-07-01) M’sadak, Y.; Jelali, R.; Ali, A.The main objective of this study was to highlight the fertilizing capacity of the extract of ovine compost (prepared to the simple infusion) in gardening nursery, while specifying the appropriate ratios of extraction and dilution ,for soilless plant fertigation intended for two strategic summer crops in Tunisia: seasonal tomato and seasonal pepper. It is clear that such extraction ratio of 1: 5 is effective for plants fertigation of two considered species. In addition, it has been shown that 200 times dilution of the concentrated extract is beneficial for the growth of tomato plants. However, this organic liquid fertilizer with different dilutions applied and in the experimental conditions adopted, wasn’t moderately efficient in stimulating the growth of pepper plants. The importance of this type of compost produced from sheep biomass, widely available in Tunisia, encourage the diversification of its exploitation, which is the object of this preliminary work, deserving more future investigations.Item A Qspr Study Of Normal Boiling Point Of Organic Compounds (aliphatic Alkanes) Using Molecular Descriptors(University of Eloued جامعة الوادي, 2013-07-01) Souyei, B.; Korichi, M.A quantitative structure–property relationship (QSPR) study is carried out to develop correlations that relate the molecular structures of organic compounds (Aliphatic Alkanes) to their normal boiling point (NBP) and two correlations were proposed for constitutionals and connectivity indices Models. The correlations are simple in application with good accuracy, which provide an easy, direct and relatively accurate way to calculate NBP. Such calculation gives us a model that gives results in remarkable correlations with the descriptors of blokes constitutionals (CON), and connectivity indices (CI) (R2 = 0.950, δ = 0.766) (R2 = 0.969, δ = 0.782) respectively.Item Scavenging Activity, Anti-inflammatory And Diabetes Related Enzyme Inhibition Properties Of Ethanol Leaves Extract Of Phoenyx Dactylifera(University of Eloued جامعة الوادي, 2013-07-01) Laouini, S. E.; Segni, L.; Gherraf, N.; Ouahrani, M. R.; Mokni, S.In this study we investigate the antioxidant, anti-inflammatory, and antidiabetic activities of ethanolic leaf extracts of three selected varieties of Phoenyx dactylifera L. namely: “Ghars”, “Deglet Nour” and “Hamraya”. The assessment of the antioxidant potential of crude leaf extracts, using superoxide anions inhibition, radical scavenging activity "DPPH" and total antioxidant activity essays, was carried out. Furthermore, the anti-inflammatory properties of the extracts were determined by measuring the inhibition of nitric oxide (NO) production. Moreover, the antidiabetic effect was evaluated by inhibition of α-amylase and α-glucosidase enzymes. The total phenolic content measured by Folin-ciocalteu method. The raw leaf extracts of the selected varieties were found to contain a high content of total phenolic content (342.45 mg GAE/ gDW for GE) and therefore exhibited a higher antioxidant activity and inhibitory effect of radicals scavenging activity against DPPH and superoxide anion (IC50=7.44 μg/mL and 39.11 μg/mL respectively).Item The Influence Of β-pbo2 On Pzt Phase Formation(University of Eloued جامعة الوادي, 2013-07-01) Allal, H.; Benhamideche, C.; Bouaoud, S. E; Poulain, M.The reactional mechanism of the formation of solid solution lead-zircono-titanate PZT has been studied using β-PbO2, TiO2 and ZrO2 as starting materials. PZT ceramics were prepared by solid state reaction between oxides at different temperatures. After calcination samples are characterized by thermogravimetry (TGA), differential thermal analysis (DTA), differential scanning, Infrared spectroscopy and x-ray diffraction (XRD). Using lead dioxide (β-PbO2) allows PZT powder to be sintered at a temperature as low as 700°C.Item Synthesis, Characterization And Antifungal Activity Of 2-[(8-hydroxyquinolinyl)-5-aminomethyl]-3-(4-chlorophenyl)-6-bromo-3(h)-quinazolin-4-one Ligand And Its Transition Metal Chelates(University of Eloued جامعة الوادي, 2013-07-01) Vashi, R. T.; Patel, S. B.Synthesis and characterization of 2-[(8-hydroxyquinolinyl)-5-aminomethyl]-3-(4-chlorophenyl)-6-Bromo-3(H)-quinazolin-4-one ligand called HAMQ (HL10) was studied. To prepare this ligand anthranilic acid was converted into 5-bromo–N-Chloroacetyl anthranilic acid then into 2-[(8-hydroxyquinolinyl) -5-aminomethyl] -3-(4-chrolophenyl) -6-bromo- 3(H)-quinazolin-4-one. This compound was prepared by condensation with 5-amino-8-hydroxyquinoline. New transition metal chelates of Cu2+, Ni2+, Zn2+, Mn2+ and Co2+ of this ligand HAMQ were prepared and characterized by reflectance, 1H-NMR as well as IR spectroscopy, elemental analysis molar conductance and magnetic measurements. The stoichiometry of the complexes has been found to be 1: 2 (Metal: ligand). The data suggested an octahedral geometry around Co2+, Ni2+ and Mn2+ complexes, a distorted octahedral geometry around Cu2+ and a tetrahedral geometry around Zn2+ have been proposed. The metal complexes were screened for the antifungal activity.Item Assessment Of Water Quality Index For Groundwater Of Valsad District Of South Gujarat (india)(University of Eloued جامعة الوادي, 2013-07-01) Shroff, P.; Vashi, R. T.The present study aims the assessment of the water quality index (WQI) for the groundwater of Valsad district of South Gujarat. Total fifteen sampling stations from five talukas of Valsad district were selected and groundwater samples were collected for two years (from August 2007 to July 2009). In this present study, WQI created by Canadian Council of Minister of the Environment (CCME) was used. For calculating the WQI, groundwater samples were analyzed for seventeen physico-chemical parameters like pH, Colour, Electrical Conductivity (EC), Total Hardness (TH), Calcium (Ca), Magnesium (Mg), Total Alkalinity (TA), Total Dissolved Solids (TDS), Silica, Chloride, Sulphate, Fluoride, Sodium, Chemical Oxygen Demand (COD) and metals like Copper (Cu), Lead (Pb) and Manganese (Mn). The WQI for Valsad district suggests that the groundwater quality is marginal.Item Elaboration And Dielectric Characterization Of A Doped Ferroelectric Material Type Pzt(University of Eloued جامعة الوادي, 2013-07-01) Abba, M.; Necira, Z.; Abdessalem, N.; Meklid, A.; Menasra, H.; Boutarfaia, A.The main objective of this work is based on the synthesis and dielectric characterization of a new material in ceramic PZT with a perovskite structure ABO3.We are interested to study the Quaternary system (doping in site A and site B) of general formula:Pb0.96Ba0.02Ca0.02[(Zr0.52Ti0.48)0.94(Zn1/3Ta2/3)0.03(In1/3Sb2/3)0.03]O3 short PZT-PBC-ZTIS.The sample selected for this study was prepared by the method of synthesis with solid way. Heat treatment was applied to these compositions at different temperatures: 1100, 1150,1180 and 1200 °C successively to optimize the sintering temperature optimal where the density of the sample is maximum (near theoretical density) and therefore the product has better physical quality.The study of dielectric properties of all samples showed a high permittivity dielectric εr = 18018, low dielectric loss: tgδ = 7.62%, for the composition sintered to 1180 ° C included in the phase morphotropique zone (FMP).Item Development Of Sustained Release Tablets Containing Solid Dispersions Of Baclofen(University of Eloued جامعة الوادي, 2013-07-01) Janardhana, K. H.; Deveswaran, R.; Bharath, S.; Basavaraj, B. V.; Madhavan, V.Sustained release tablets containing solid dispersions granules of a poorly water soluble drug were prepared to investigate the controlled release of the drug. Baclofen was chosen because of its poor water solubility and short eliminationhalf-life. Poloxamer 188 and PEG 6000 were used as solid dispersion carrier. Free flowing solid dispersion granules were prepared by adsorbing the melt of the drug and carriers onto the surface of an adsorbent, Carbopol 934P followed by direct compression with HPMC K4M and HPMC K100 to obtain an solid dispersion loaded sustained release tablets. FTIR studies confirmed that the compatibility of drug and carriers. Differential scanning calorimetry (DSC) and X-ray diffraction (XRD) revealed partially amorphous structures of the drug in solid dispersion granules. The solid dispersion granules dissolved completely within 30 min, which was much faster than that of pure drug baclofen. The sustained release of baclofen from the solid dispersion containing tablet was achieved for 2 h in gastric fluid (pH 1.2) and for up to 10 h in intestinal fluid (pH 6.8). A combination of solid dispersion techniques using adsorption and sustained release concepts is a promising approach to control the release rate of poorly water-soluble drugs.