18 research outputs found

    PERCEPTION OF WOMEN OF CHILDBEARING AGE (15-45years) ON CAUSES AND CONSEQUENCES OF INFERTILITY IN OSOGBO LOCAL GOVERNMENT AREA OF OSUN STATE, NIGERIA

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    Infertility brings about low self-esteem, sense of powerlessness, discrimination and stigmatization as well as threatens the woman’s identity, status, marital and emotional security. This study examined the perception of women of childbearing age on causes and consequences of infertility. A descriptive non experimental research design was used. A sample frame of 40 respondents was selected using purposive sampling technique among women of childbearing age. Data were analyzed using descriptive and inferential statistics. Three null hypotheses were tested using student t-test at 5% level of significance. The study revealed that irregular sexual intercourse, irregular menstruation, untreated sexually transmitted diseases, late marriage especially above 30years of age, fibroid, low sperm count, unsafe abortion, and promiscuity were factors contribute immensely to increase infertility rate. Majority of the respondents opined that infertility could result in divorce or separation of couple which can lead to extinction of that family name, husband’s family inherit his property after his death, polygamy or polyandry, loss of hope, lack of joy and happiness in the family. The findings of this study revealed that there is no significant difference in the age religion of women under study and their perception on causes and consequences of infertility with t-calculated>t-tabulated (2.54 > 4.3); as well as, there is no significant difference was found between the age at marriage of women under study and their perception on causes and consequences of infertility with t-calculated>t-tabulated (2.56 > 4.3). The results also revealed that there is significant difference in the religion of women under study and their perception on causes and consequences of infertility with t-calculated<t-tabulated (7.64 < 4.3). It was concluded that sound family life education should be given to the public especially women and adolescents teenagers with emphasizes on causes, prevention and management of infertility

    Prevalence of metabolic syndrome and its component traits among students in a Nigerian university

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    Objectives: Metabolic syndrome (MetS) is associated with increased risk for type 2 diabetes mellitus, cardiovascular diseases (CVDs) and all-cause mortality. This cross-sectional study examined the prevalence of MetS and its component traits among students in a Nigerian university in whom there are limited data.Methods: 173 students (109 females and 64 males) students aged 18 – 30 years with no prior diagnosis of any component trait of MetS participated in the study. We obtained anthropometry, blood pressure (BP), fasting plasma glucose (FPG) and complete lipid profile of the participants. MetS was defined using the modified National Cholesterol Education Program for Adult Treatment III Guidelines (NCEPATPIII), the International Diabetes Federation (IDF) and the Joint Interim Statement (JIS) criteria.Results: The prevalence rates of MetS according to the NCEP-ATP III, IDF and JIS criteria were 4.0, 3.5 and 5.8% respectively. Elevated BP, FPG, increased waist circumference (NCEP) and low high density lipoprotein cholesterol (HDL-C) were present in 13.3%, 15.0%, 4.6%, and 46.2% participants respectively. Seventy seven (44.5%) and 19 (11.0%) participants had 1 or 2 MetS traits (NCEPIII criteria). None of the participants had elevated triglyceride. The males had significantly higher mean FPG, and systolic BP while the females had significantly higher prevalence of low HDL-C. There was no statistically significant gender difference in the prevalence of MetS.Conclusions: Nigerian university students have and are at risk of MetS. Screening and identification of MetS in this population will help in targeted intervention to reduce the risk of CVDs.Keywords: Metabolic syndrome, university students, Nigeri

    Variable Viscosity and Thermal Conductivity Effect of Soret and Dufour on Inclined Magnetic Field in Non-Darcy Permeable Medium with Dissipation

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    The analysis of thermal-diffusion (Soret) and diffusion-thermo (Dufour) effects on variable thermal conductivity and viscosity in a dissipative heat and mass transfer of an inclined magnetic field in a permeable medium past a continuously stretching surface for power-law difference in the concentration and temperature are examined. The flow is incompressible with the thermal conductivity and fluid viscosity are assumed to be temperature dependent. The local similarity variables for various values of the parameters are considered for the momentum, heat and mass equations. The dimensionless equations are solved numerically using fourth order Runge-Kutta scheme coupled with shooting method. It was noticed that an increase in the values of m enhances the temperature profiles as heat moves from the plate surface to the ambient medium when 0fm, otherwise it flows away from the medium to the stretching sheet. Finally, the influences of Skin friction, Nusselt and Sherwood numbers are also presented and discusse

    Physical and combustible properties of briquettes produced from a combination of groundnut shell, rice husk, sawdust and wastepaper using starch as a binder

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    This study investigated the use of agro-wastes for the production of briquettes. Briquettes were produced from a combination of groundnut shell, rice husk, sawdust and wastepaper using the 20:70:10, 30:60:10, 40:50:10, 50:40:10, 60:30:10 and 70:20:10 ratio. The feedstock of each blend was fed into a square mould [60mm] and screw-pressed at 20 MPa in a dwelling time of 60 seconds. Moisture content, density and combustion characteristics (ignition time and calorific value) of the briquettes were determined. Data obtained were analysed using appropriate statistical tools. The moisture content of all the briquettes ranged between 8 to 15%. The briquettes density was in the range of 800 to 900 kg.m−3, while the calorific value ranged from 0.03 to 0.19 and 0.02 to 0.27 MJkg−1 for Saw dust-rice husk- paper (SRP) and groundnut shell-saw dust-paper (GSP) briquettes. The quality of the briquettes in terms of density and burning time showed that 20% sawdust: 70% rice husk: 10% paper combination had a higher relaxed density of 387.4kg/m3, while on the basis of moisture content and ignition time, 70% sawdust: 20% rice husk: 10% paper combination had the least moisture content and ignition time of 16.7% and 18seconds, respectively. RSP had higher calorific value, lower ignition time, but less durability than GSP. However, the compressed and relaxed densities of SRP and GSP briquettes were significantly difference (p&lt;0.05). The durability of the briquettes improved with increased starch proportion. It can be concluded that production of SRP and GSP briquettes is an effective and efficient agricultural waste disposal technique.Keywords: Agro-residues, briquettes, physical, mechanical, biomass, wast

    Fish sorting assessments of Clarias gariepinus fingerlings raised in fish tanks

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    Fish sorting assessments of Clarias gariepinus fingerlings stocked and raised in fish tanks were undertaken for a 6-month culture period: Sorting was undertaken from the first, second, and third months of stocking the fish fingerlings while the control was not sorted at all. The sorting assessments revealed that the twice sorting of fish fingerlings stocked with a Marginal Rate of Return (MRR) of 3.44 was significantly different (p>0.05) from those sorted once with MRR of 0.912, and three times with MRR of 2.65 respectively, thus making twice sorting most advisable for fish farmers utilizing Clarias gariepinus fingerlings for tank aquacultur

    Comparative study of the nutritional, phytochemical and mineral compositions of the nuts of tropical almond (Terminalia catappa) and sweet almond (Prunus amygdalus)

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    The study was conducted to compare the nutritional, phytochemical and mineral compositions of Tropical almond with Sweet almond. Sample of Terminalia catappa nuts were collected within the premises of Nigerian Stored Products Research Institute (NSPRI), Ilorin, Nigeria while Prunus amygdalus was purchased from Shoprite Palms Mall Ilorin, Nigeria. Proximate, phytochemical and mineral analyses were carried out using standard procedures. Results showed that T. catappa was significantly (p0.05) was recorded in their protein contents (33.00 and 32.89% respectively). P. amygdalus was significantly (p<0.05) high in phytochemicals such as tannin (748.49µg/g), phenols (1,781.50 µg/g), flavonoids (456.38 µg/g), saponin (158.70 µg/g) and alkaloids (240.11µg/g) while T. catappa was significantly (p<0.05) high in glycosides (220.27µg/g).The differences in phytochemicals might be due to the differences in drying and other processing methods. T. catappa can well compete with P. amygdalus if the value chain is improved upon by proper packaging and storage for commercial purposes

    RadiativethermalcriticalityandentropygenerationofhydromagneticreactivePowell Eyringfluidinsaturatedporousmediawithvariableconductivity

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    Theoretical study of inherent irreversibility and thermal runaway of an exothermic reactive Eyring–Powell fluid flow through a saturated porous fixed horizontal channel with thermal radiation andvariable electrical conductivity is investigated. The reactive conducting fluid under bimolecular chem-ical rate law is propelled by pressure gradient. Ignoring the material assumptions, the governingdimensionless equations of the flow model are solved using semi discretization finite differencetechniques coupled with weighted residual method. The results in terms of flow rate, temperature,thermal runaway, Bejan number and entropy generation are presented in graphical form. From theresults, it is observed that parameter which argument the entropy production rate also enhances theBejannumber.Also,minimizationofentropygenerationisachievedatlowvaluesofthermalradiation,dissipation rate, electric field loading and viscosity variables

    Analysis of Transient Rivlin-Ericksen Fluid and Irreversibility of Exothermic Reactive Hydromagnetic Variable Viscosity

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    This study analyzes the unsteady Rivlin-Ericksen fluid and irreversibility of exponentially temperature dependent variable viscosity of hydromagnetic two-step exothermic chemical reactive flow along the channel axis with walls convective cooling. The non-Newtonian Hele-Shaw flow of Rivlin-Erickson fluid is driven by bimolecular chemical kinetic and unvarying pressure gradient. The reactive fluid is induced by periodic changes in magnetic field and time. The Newtons law of cooling is satisfied by the constant heat coolant convection exchange at the wall surfaces with the neighboring regime. The dimensionless non-Newtonian reactive fluid equations are numerically solved using a convergent and consistence semi-implicit finite difference technique which are confirmed stable. The response of the reactive fluid flow to variational increase in the values of some entrenched fluid parameters in the momentum and energy balance equations are obtained. A satisfying equations for the ratio of irreversibility, entropy generation and Bejan number are solved with the results presented graphically and discussed quantitatively. From the study, it was obtained that the thermal criticality conditions with the right combination of thermo-fluid parameters, the thermal runaway can be prevented. Also, the entropy generation can minimize at low dissipation rate and viscosity

    Numerical Analysis of Non-Uniform Heat Source/Sink in a Radiative Micropolar Variable Electric Conductivity Fluid with Dissipation Joule Heating

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    Computational analysis of radiative heat transfer of micropolar variable electric conductivity fluid with a non-even heat source/sink and dissipative joule heating have been carried out in this article. The flow past an inclined plate with an unvarying heat flux is considered. The transformed equations of the flow model are solved by the Runge-Kutta scheme coupled with shooting method to depict the dimensionless temperature, microrotation and velocity at the boundary layer. The results show that the coefficient of the skin friction and the temperature gradient at the wall increases for regular electric conductivity and non-uniform heat sink/sourc
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