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Search Results: 1 - 10 of 4678 matches for " SA Aliyu "
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Ideal hepatotoxicity model in rats using Carbon Tetrachloride (CCl4)
AJ Alhassan, MJ Sule, SA Aliyu, MD Aliyu
Bayero Journal of Pure and Applied Sciences , 2009,
Abstract: A study to produce ideal Hepatotoxicity rats’ models using varying concentrations of carbon tetrachloride (CCl4) was carried out. A total of seventy five rats were divided into five (5) groups of twenty five (25) rats each; rats in group I are negative control, were not induced with lipid peroxidation. Rats in groups II, III, IV and V were induced with lipid peroxidation and liver damage using, 90, 105 and 120mg/Kg body weight CCl4 respectively. Five (5) rats were removed from each group after 48 hours, 72 hours (3 days) and 144 hours (6 days) of inducement with CCl4 and sacrificed for blood sample collection. Sera obtained were analyzed for alanine transaminase (ALT), aspartate transaminase (AST), alkaline phosphatase (ALP) activities, and for Malondialdehyde (MDA), total protein (TP) and albumin (ALB) concentrations. After 48hours, rats treated with various concentrations of CCl4 had mean serum activities/ levels of AST, ALT, ALP, MDA, TP and ALB significantly higher (p< 0.05) than normal rats. The control group had 39.5±0.71, 11.5±2.12, 36±7.07U/L, 0.0769 ± 0.015 μM, 43.5±3.54, 19 .00 ± 2.83 g/L respectively. Rats treated with 75mg of CCl4 showed activities/level non significant (p>0.05) increase of serum AST, ALT, ALP, and MDA after 96 hours of CCl4 treatment compared with control group. However, rats treated with 90, 105 and 120mg/kg of CCl4 showed persistently high serum AST, ALT, ALP in U/L, MDA in μM/L, TP and ALB in g/L. even at 144 hours after the treatment. Ideal hepatotoxicity rat model using CCl4 requires a dosage that can cause massive liver damage. Key Words: carbon tetrachloride, hepatotoxicity rats modeling, natural healing.
Ethanol production from corn cobs by co-culture of Saccharomyces cerevisiae and Aspergillus niger
SA Ado, GU Kachalla, MB Tijjani, MS Aliyu
Bayero Journal of Pure and Applied Sciences , 2009,
Abstract: Saccharomyces cerevisiae and Aspergillus niger were used in a co-culture for the simultaneous saccharification and fermentation (SSF) of 1% and 10% (w/v) dry pre-treated corn cobs to ethanol. Positive controls of glucose of same concentrations in a synthetic medium were also fermented. At 1% substrate concentration, the complex medium containing corn cobs had a maximum ethanol yield of 4.17%, while the synthetic medium with glucose gave 3.45%. At a higher concentration of 10% the synthetic medium gave a yield of 6.23% which is comparable to 6.17% by the complex medium. Residual sugar concentration was observed to decrease with increase in ethanol production and cell growth increased with time of fermentation.
Development of amino resins for emulsion paint formulation: effect of aldelhydic group and degree of substitution
SA Osemeahon, JT Barminas, BA Aliyu, HM Maina
African Journal of Biotechnology , 2007,
Abstract: In our continuous effort to develop a paint binder from amino resins, amino resins from different aldehydic groups were synthesized to produce urea, formaldehyde (UF), urea acetaldehyde (UA), urea proparaldehyde (UP) and urea butaldehyde (UB) at different degree of substitution (Mono – tetra). Some physical properties of these resins were evaluated. The viscosity, gel time, density and refractive index of the resins (except UB) were found to increase with increase in alkyl length of the aldehydic group while turbidity (except UF) increased with increase in alkyl length of the aldehydic group. On the other hand, melting point and moisture uptake decreases with increase in alkyl length of the aldehydic group. In the case of the degree of substitution the viscosity, turbidity, melting point and moisture uptake increases with increase in the degree of substitution while the gel time and refractive index were found to decrease with increase in the degree of substitution. However, an initial rise followed by a gradual fall was recorded for density for the different degree of substitution for all the resins. Samples for UF and UA with the exception of monoethylol urea were too hard brittle and has low water resistance while those of UP and UB resins were too soft and remained as semi solid in the cured state at room temperature (30oC). This result indicates that these resins cannot be used alone as paint binder. However, monoethylol urea seems to have sieved itself out as a compromise candidate who is neither brittle nor too soft. A comparison of monoethylol urea with some physical properties of some convectional paint binders present it as a potential binder which may be used in the coating industry.
Development of sodium alginate and konkoli gumgrafted- polyacrylamide blend membrane: optimization of grafting conditions
SA Osemeahon, TJ Barminas, BA Aliyu, II Nkafamiya
African Journal of Biotechnology , 2008,
Abstract: This experiment is a continuation of our effort to develop a blend membrane of sodium alginate and “konkoli” gum-g-polyacrylamide (KG-g-PAAm) for bioremediation of wastewater. The effect of graft reaction conditions on the percentage graft yield in the graft copolymerization was investigated. It was observed that grafting parameters such as acrylamide (AM), ceric ammonium nitrate (CAN), “konkoli” gum (KG), temperature and reaction time have remarkable influence on the percentage graft yield of the graft copolymer. The percentage graft yield initially increased and then decreased for all the parameters investigated. Optimum percentage graft yield of 83, 85, 86, 84 and 84 were obtained by varying AM, CAN, temperature, reaction time and KG, respectively. This result present the optimum grafting conditions required for copolymerization of AM onto KG.
Comparative Study on The Potency of Antibiotic Discs With Commercially Sold Antibiotics on Clinical Isolates From Urinary Tract
MB Tijjani, MS Aliyu, SA Ado, I Garba, AN Sulaiman
Nigerian Journal of Basic and Applied Sciences , 2011,
Abstract: A total of 250 urine samples were collected from patients attending Ahmadu Bello University Health Service Clinic (Sick bay), Salama Hospital and Major Ibrahim Abdullahi Memorial Hospital (Kaduna State Ministry of Health). The samples were screened for UTI and forty-three (43) were positive for Klebsiella and Escherichia coli. Of all the isolates, 24 were K. species and 19 were Escherichia coli. Their susceptibilities to Ampicillin, Ciprofloxacin and Gentamicin were examined using the antibiotics disc and the commercially sold antibiotics. The susceptibility of K. species to Ampicillin, Ciprofloxacin and Gentamicin for the antibiotics disc was 16.7%, 62.5% and 41.7% respectively. For the commercially sold antibiotics its susceptibility was 0%, 8.3% and 50.0% to Ampicillin, Ciprofloxacin and Gentamicin respectively. The susceptibility of Escherichia coli to Ampicillin, Ciprofloxacin and Gentamicin for the antibiotics disc was 31.6%, 52.6% and 57.9% respectively. For the commercially sold antibiotics its susceptibility was 0%, 36.8% and 31.6% to Ampicillin, Ciprofloxacin and Gentamicin respectively. Our results showed that antibiotics disc was more effective than the commercially sold antibiotics and that both organisms were resistant to Ampicillin but susceptible to Gentamicin and Ciprofloxacin.
Haematological Indices and Blood Urea Nitrogen of Yankasa Ram Lambs Fed Urea, Poultry Droppings and or Urea Treated Pennisetum pedicellatum (Kyasuwa Grass)
ID Aliyu, SA Maigandi, IR Muhammad, Y Garba
Nigerian Journal of Basic and Applied Sciences , 2012,
Abstract: A study was conducted to evaluate the haematological indices and blood urea nitrogen (BUN) of Yankasa ram lambs fed urea and/or poultry droppings treated Kyasuwa (Pennisetum pedicellatum). There were no significant differences (P>0.05) between control treatment (K) and other treatment means observed in the values of packed cell volume (PCV), neutrophils, lymphocytes, eosinophils and basophils. Treatments KU and KPD are significantly different (P < 0.05) from the rest of the treatments in which treatment KPD had the highest value WBC. Blood urea nitrogen from all the treatments were not significantly different (P>0.05) from each other. No ill-health was encountered as a result of feeding treated Kyasuwa with urea and or poultry droppings.
The Effect of Hygroscopic Growth on Continental Aerosols  [PDF]
Bello Idrith Tijjani, Aliyu Aliyu, Fatima Shuaibu
Open Journal of Applied Sciences (OJAppS) , 2013, DOI: 10.4236/ojapps.2013.36048
Abstract: In this paper, the authors investigated some microphysical and optical properties of continental clean aerosols from OPAC to determine the effect of hygroscopic growth at the spectral range of 0.25 μm to 2.5 μm and eight relative humidities (RHs) (0%, 50%, 70%, 80%, 90%, 95%, 98% and 99%). The microphysical properties extracted were radii, volume mix ratio, number mix ratio and mass mix ratio as a function of RH while the optical properties are scattering and absorption coefficients and asymmetric parameters. Using the microphysical properties, growth factors of the mixtures were determined while using optical properties the enhancement parameters were determined and then parameterized using some models. We observed that the data fitted the models very well. The angstrom coefficients show that the mixture has bimodal type of distribution with the dominance of fine mode particles.
Phytochemical and Antibacterial Properties of Leaf Extracts of Ipomoea asarifolia
MS Aliyu, U Lawal, MB Tijjani, MHI Doko, I Garba, HA Kokya, SA Ado, UA Hanwa, MM Ibrahim
Nigerian Journal of Basic and Applied Sciences , 2011,
Abstract: The antibacterial potency of aqueous and methanol extracts of Ipomoea asarifolia leaves; a plant widely used by traditional medical practitioners in Nigeria was determined in vitro against three bacterial pathogens (Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa) by agar well diffusion method. The pattern of inhibition varied with the extracts and the organisms tested. Both the aqueous and methanol extracts were potent on E. coli and S. aureus with maximum zone of growth inhibition of 21mm and 20mm at 200mg/ml respectively Pseudomonas aeruginosa was resistant to both extracts at all the concentrations tested. The minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) against E. coli for aqueous extract were 50mg/ml and 100mg/ml respectively; and 100mg/ml and 200mg/ml for methanol extract respectively. Similarly, The MIC and MBC against S. aureus for aqueous extract were 100mg/ml and 200mg/ml; 200mg/ml for the methanol extract. Preliminary phytochemical screening reveal the presence of anthraquinones, saponins and tannins in both aqueous and methanol extracts; triterpenes, flavonoids and glycosides were found only in the aqueous extract while alkaloids were found only in the methanol extract. However, carbohydrate and steroids were absent in both extracts. The spectra of activities shown by the extracts could be attributed to the presence of these phytochemicals which signifies the potential of I. asarifolia as a source of therapeutic agents. These findings therefore, justify the traditional medicinal use of the plant.
The Effect of Relative Humidity on Continental Average Aerosols  [PDF]
Bello Idrith Tijjani, Aliyu Aliyu, Fatima Sha’aibu
Open Journal of Applied Sciences (OJAppS) , 2014, DOI: 10.4236/ojapps.2014.47038
Abstract: In this paper, the authors extracted and investigated the effect of relative humidity (RH) on some microphysical and optical properties of continental polluted aerosols from OPAC (Optical Properties of Aerosols and Clouds) at the spectral range of 0.25 μm to 2.5 μm and eight relative humidities (0%, 50%, 70%, 80%, 90%, 95%, 98%, and 99%). The microphysical properties extracted were radii, volume, number and mass mix ratios as functions of RH while the optical properties were optical depth, extinction, scattering and absorption coefficients single scattering albedo, refractive indices and asymmetric parameters also at eight RHs. Using the microphysical properties, effective hygroscopic growth factors and effective radii of the mixtures were determined while using optical properties we determined the enhancement parameters, effective refractive indices and angstrom coefficients. Using the effective hygroscopic growth, we determined the dependence of the effective hygroscopicity parameter as a function of RH, while using enhancement parameters; we determined the effect of humidification factor on RH and wavelengths. The effective hygroscopic growth and enhancement parameters were then parameterized using some models to determine the effective hygroscopicity parameter, bulk hygroscopicity and humidification factors. We observed that the data fitted the models very well. The effective radii decrease with the increase in RH while the effective hygroscopic growth increases with the increase in RH, and this is in line with the increase in angstrom parameters, and this shows increase in mode size with the increase in RH. The angstrom coefficients show that the mixture has a bimodal type of distribution with the dominance of fine mode particles.
The Effect of Relative Humidity on Maritime Tropical Aerosols  [PDF]
Bello Idrith Tijjani, Fatima Sha'aibu, Aliyu Aliyu
Open Journal of Applied Sciences (OJAppS) , 2014, DOI: 10.4236/ojapps.2014.46029
Abstract: The present work focused on the effect of relative humidity (RH) on some microphysical and optical properties of maritime tropical aerosols from the software package OPAC (Optical Properties of Aerosols and Clouds) data at the spectral range of 0.25 μm to 2.5 μm and eight relative humidities (0%, 50%, 70%, 80%, 90%, 95%, 98%, and 99%). The microphysical properties extracted were radii, volume mix ratio, number mix ratio and mass mix ratio as a function of RH while the optical properties were optical depth, extinction, scattering and absorption coefficients single scattering albedo, refractive indices and asymmetric parameters. The hygroscopic growth and enhancement parameters were then parameterized by using some models to determine the hygroscopicity, bulk hygroscopicity, humidification factors and some other parameters that depend on RH and/or wavelengths. The results showed that the data fitted our models very well and can be used to extrapolate the hygroscopic growth at any RH and enhancement parameters at any RH and wavelengths. The importance of determining gfmix(RH) as a function of RH and volume fractions, mass fractions and number fractions, and enhancement parameters as a function of RH. The effective radii increases with the increase in RH, while Angstrom coefficients decrease with the increase in RH and this signifies the dominance of coarse mode particles. The angstrom coefficients show that the mixture has bimodal type of distribution and the mode size increases with the increase in RH.
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