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Closed form solution to seal performance of power law fluid with a seal ring and a rotating seal plate
Full text linkThis paper deals with seal performance of a non-Newtonian power-law fluid. The mechanism comprises a primary seal ring flexibly mounted on a support and a secondary seal plate capable of rotating about a shaft. Solution to the seal performance is obtained unlike earlier1 author’s in closed form subject to a set of boundary conditions compatible with the fluid motion and as such the leakage velocity- components have been determined analytically for pseudo plastic fluids and dilatants. Finally numerical examples have been illustrated in case of some non-Newtonian fluids
The effect of erythropoietin on ovarian epithelium edema during ischemia reperfusion injury in rats
Full text linkObject: This experiment investigated a probable recessing effect of erythropoietin (Epo) in a rat model of ovarian ischemia-reperfusion (IR) injury concerning the mean ovarian epithelium edema (OE) lesions.
Methods: 40 rats of mean weight 247.7 g were used totally. The OE lesions scores were evaluated at 60 min (groups A and C) and at 120 min (groups B and D) of reperfusion; after Epo administration in groups C and D.
Results: Epo administration non-significantly decreased the OE scores by 0.3 without lesions [-0.8356043 - 0.2356043] (p= 0.2803). Reperfusion time kept non-significantly increased the OE by 0.35 without lesions [-0.2356043 - 0.8356043] (p=0.2557). However, erythropoietin administration and reperfusion time together non-significantly decreased the OE scores by 0.1272727 without lesions [-0.4530022 - 0.1984567] (p=0.4339).
Conclusion: Epo administration showed a non-significant short-term recessing trend for OE scores without lesions alteration. Perhaps, a longer study time than 2 hours or a higher Epo dosage may reveal clearer and significant effects.  
A comparative evaluation of oxidative status of erythrocytes in normal and sickle cell disease patients
Full text link It is well established that G6PD deficient individuals are subjected to high oxidative stress and, hence, stiffening of the cell membrane due to oxidation of important membrane proteins. This effect is pronounced in RBCs where G6PD is the sole producer of NADPH, an essential cofactor in the antioxidant defense mechanism. A different approach is to evaluate oxidative stress as the analysis of antioxidant concentrations. GSH can be oxidized, mainly to glutathione disulfide (GSSG), or can form glutathionylated proteins (PSSG). The measurement of GSG, GSSG give fundamental information on the intracellular redox status. Analytical methods based on spectrophotometry, HPLC, capillary electrophoresis, nuclear magnetic resonance, and mass spectrometry have been reported for the determination of glutathione in biological samples. Our study has concluded that the HPLC method to measure the concentration of reduced (GSH) and oxidized (GSSG) glutathione in the normal (healthy) and Sickle Cell Disease patients. Erythrocyte glutathione depletion has been linked to hemolysis and oxidative stress. Our study revealed that the total antioxidant status in steady-state sickle cell disease (SCD) patients and compared it with some healthy individuals and related it to certain hematological parameters and their recent clinical history. 15 (males & females) adult SCD patients and 15 age-matched controls were studied. And we hypothesized that altered glutathione and glutamine metabolism play a role in this process. Total glutathione (oxidized & reduced) were assayed in erythrocytes of 15 SCD patients and 15 healthy volunteers. Erythrocyte glutathione levels were significantly lower in SCD patients than in healthy volunteers. The ratio of erythrocyte GSH: GSSG correlated inversely to the oxidized levels of the erythrocytes.  
A study on hereditary generalized regular submaximal spaces
Full text link In this paper the concepts of dense--sets, codense--sets, hereditary generalized submaximal spaces and hereditary generalized regular submaximal spaces are introduced with necessary examples. Also interesting properties and some equivalent statements of hereditary generalized regular submaximal spaces are discussed
Quail eggs consumption and the levels of glucose, lipid profile in healthy students of Nnamdi Azikiwe University, Nnewi
Full text linkAim: The present study was design to determine serum glucose and lipid profile level of triglyceride, total cholesterol, high density cholesterol, low density lipoprotein, very low density lipoprotein following the consumption of cooked quail eggs by apparently healthy students.
Materials and Methods: This is an experimental study comprising 37 volunteered students, out of which are 20 females and 17 males within the age of 18±35years respectively. They were fed with three cooked quail eggs every morning for 21 days.3ml of fasting blood were collected before the intake of cooked quail eggs for baseline, 10th day, and 21st day respectively. The serum levels of glucose and lipid profile were determined using standard methods.
Results: The result showed that the serum total cholesterol and low density lipoprotein–cholesterol decreased significantly at 10th day and 21st day following consumption of cooked quail eggs when compared with the baseline levels (p< 0.05). While High density lipoprotein – cholesterol increased significantly at 21st day following consumption of cooked quail eggs when compared with the baseline level (p<0.05). Glucose, triglyceride and very low density lipoprotein cholesterol did not differ at 10th day and 21st day following consumption of cooked quail eggs when compared with the baseline (p> 0.05).
Conclusion: The implication of this finding suggest that regular consumption of cooked quail eggs may decrease diabetic and cardiovascular risk due to its ability to significantly decrease TC, LDL-C, increase HDL-C and TG, VLDL, glucose not differed
Biodegradation of Ferulic Acid Using Aspergillus fumigatus
Full text linkThe soil samples collected from the dumped sites of coffee industry residues contaminated with ferulic acid at Keezhkadu, Kodaikanal were subjected to serial dilution and the development of fungal colonies in PDA plates. One of the colonies was selected and identified as Aspergillus fumigatus using Lacto phenol cotton blue staining method. The efficiency of the fungal strain on the degradation of different concentrations of the ferulic acid was studied using 5, 10, 15 and 20 ppm of ferulic acid. The changes in pH, COD, and biomass observed were proved statistically significant using ANOVA. It was also confirmed by the appearance of new peaks in HPLC analysis after ten days of treatment. Hence this strain can be used efficient in degrading the phenolic compound
Separation Axioms via contra ðœ‹-continuous functions in M-topological spaces
No full text The motive of this paper, is to introduce and study the concept of p-open M–set and p-continuous M–set. Separation axioms via p-continuous M–set function are studied. Also, the properties of p-connectedness M–space are studied. Necessary examples are also provided
Critical environmental factors for photosynthetic organisms of the Shardara Reservoir, Kazakhstan
Full text linkIn summer 2015, the distribution of structural indicators of phytoplankton and the macrophytes overgrowth in the Shardara Reservoir's water independent of external factors was studied. Phytoplankton was represented by 78 species; green algae dominated. The abundance of community was 544.0 mln. cells m-3, with biomass at 626.1 mg m-3. Macrophytes Potamogeton natans L. and Potamogeton malajanus L. massively developed on the eastern shallow parts and in bays of the southwestern part of the reservoir. Our research showed that the biotopes inhabited by macrophytes were generally characterized by relatively higher concentrations of nitrite, phosphate, and zinc. The structure of phytoplankton was dependent on many factors, among which the most important were the water temperature and heavy metals. The warm-water status of the Shardara Reservoir was reflected in the dominance of green algae and dinoflagellates. With relatively high concentrations of heavy metals in the ecosystem, their impact on phytoplankton was neutralized by the complex nature of pollution, which included the increased number of organic substances. The impact of toxicants was not traced when analyzing the diversity and abundance of phytoplankton. The prevalence of facultative heterotrophs among the diatoms served as an indirect indication of the presence of toxic substances in the ecosystem. The dimensional structure of phytoplankton changed under the influence of cadmium in size reduction, and that may be the adaptive restructuring of the community in response to the toxic stress. Therefore, we may emphasize the essential indicative importance of size parameters of communities, including the Clarke's W-statistics and Δ-Shannon-Weaver
Variation Of Depth With Oblique emergence Of Rays Separated By A Finite Angle For Virtual Image
Full text linkUnlike in previous published paper, two different rays separated by a finite angle,emitting from a point source in a denser medium enter a rarer medium following the laws of incidence and refraction.Two refracted rays thus obtained, when produced backwards meet at a point which is a virtual image as observed obliquely from the rarer medium. The longitudinal and lateral shifts of the image with respect to the object are determined
Microbiological Evaluation of Combinations of Extracts of Euphorbia abyssinica and Coleus species for Antibacterial Activity
Full text linkAntibacterial activity of 50% methanol extracts of Coleus species and Euphorbia abyssinica were investigated singly and in combination against Staphylococcus aureus, Escherichia coli, Salmonella typhi, Pseudomonas aeruginosa, using agar diffusion, macrobroth dilution, Checkerboard and Time kill assays. The inhibition zone diameters (IZDs) produced by the two plant extracts singly ranged from 17mm to 24mm, and those produced by the combination ranged from 17mm to 29mm. In the macrobroth dilution assay, the MICs obtained for the individual plant extracts ranged between 1.95-25mg/ml. In the Time Kill assay of the individual plant extracts, S. aureus was killed by 3.91mg/ml concentration of E. abyssinica and Coleus species alone, (at 1MIC and 2MIC), respectively. The combination killed it at 3.695mg/ml, indicative of synergy. S. typhi was killed by 12.5mg/ml and 6.25mg/ml (1MIC) concentration of E. abyssinica stem-bark and Coleus species, respectively. It was, also, killed by 6.26-, 6.88-, 7.51-, 8.14- and 8.75-mg/ml respective concentrations of different combinations of the two plant extracts. This is, also, indicative of synergy. P. aeruginosa was inhibited by 2MIC (25 mg/ml and 9.38mg/ml) of E. abyssinica stem-bark and Coleus species extracts, respectively, but a combination of the two plant extracts killed at 5.32mg/ml concentration, again indicating synergy. Some of the combinations tested using the checkerboard method showed synergy while others were indifferent or antagonistic after 24hours of exposure. The control drug, Gentamycin, was effective against all the test bacteria. A comparison of two methods revealed that the checkerboard assay was significantly more sensitive than the Time Kill assay (P<0.05).The results authenticate the ethno-medicinal uses of these plants