306 research outputs found

    Development Inequalities in Osun State, Southwestern Nigeria

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    This paper examined the spatial inequality of development among thirty Local Government Areas of Osun State, Southwestern Nigeria. Based on the results of Principal Component Analysis and Logistic Regression applied to 45 indices of development in all the LGAs for year 2001, the paper identified four major components and six predictor variables as determinants of development inequalities among the LGAs in the State. It revealed regional inequalities of development in the state. Many development indicators are concentrated in a few Local Government Areas that are urban based. Majority of the LGAs are lagging behind on the components of development. This portends serious implications for development planning in the state. It can be concluded that the economy of the entire state is largely underdeveloped. African Research Review Vol. 1 (1) 2007: pp. 25-4

    Local Aetiology and Pathways to Care in Malaria among the Ibibio of South-coastal Nigeria

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    There is a parallel between local and bio-medical perceptions of malaria among the Ibibio people of South-coastal Nigeria, as in many other societies of sub-Saharan Africa where malaria is endemic. Despite the fact that this accounts for resilience of the disease, earlier studies on malaria in Africa focused on causes, prevalence and socio-environmental factors. Local meanings of malaria and their influence on therapeutic choices have been largely ignored. This study examines local perceptions of malaria among the Ibibio and explains how attitudes are generated from indigenous meanings. It also examines how such attitudes inform a local aetiology of malaria. Similarly, our study examines how local meanings of, and attitudes towards malaria, set the pathway of care in malaria management among the Ibibio. Through qualitative and descriptive ethnography, Key Informant Interview (KII), Focus Group Discussion (FGD) and the textual analysis of documents, our study seeks to establish that malaria is caused by parasites–protozoa. 83% of the respondents held that malaria is due to witchcraft, exposure to sunlight and eating of yellowish food items such as yellow maize, paw-paw, orange and red oil. These local perceptions are drawn from local conceptions which in turn encourage malaria patients to seek assistance outside modern health care facilities. This also discourages local communities from attending health education workshops that link malaria with germ theory and care. Treatment of malaria is thus mostly home-based where a wide variety of traditional remedies is practiced. Our study concludes that the lack of convergence between local knowledge-contents and bio-medical explanations account for a high prevalence rate and the lack of effective management. For proper management of malaria, there is a need to understand local knowledge and indigenous concepts in order to establish a convergence between bio-medical explanations and indigenous perceptions. Only then can a community acceptable means of changing bio-medical perceptions of the disease be facilitated

    Maize genetic improvement for enhanced productivity gains in West and Central Africa

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    During the past 45 years, the genetic improvement programs of IITA and its partners have made spectacular progress in developing high-yielding crop varieties that offered best-bet solutions to major production constraints, such as, cassava mosaic, maize streak, Striga, soybean rust, insect pests, and even drought. These have led to dramatic increases in the production of cassava, maize, soybean, cowpea, and yam in sub-Saharan Africa that have directly contributed to increases in food availability and indirectly to improvements in national economies. This section presents the status, progress, and achievements, and also outlines future work on crop improvement by genetic enhancement in IITA's six crops

    Effects of NPK single fertilizers on relative growth performances of two cycles of maize (Zea mays L.) grown in a degraded soil of Southwest Nigeria

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    The balanced use of inorganic amendments to enhance effective crop production for developing world economies like Nigeria is paramount to achieve her Millennium Development Goals (MDGs) for its teeming population. Thus this study was carried out to assess the relative growth performances of a major food crop under different regimes of fertilizer application. Field and Green House experiments were carried out to assess the relative growth performances of two Cycles of Zea mays L. (LNTP-W C0 and C3) used as test crops for the amendment of degraded soil using N, P and K single fertilizers. The single fertilizers (treatments) used were Urea, Single Super Phosphate (SSP) and Muriate of Potash and the study was carried out in the Department of Botany, University of Ibadan, Nigeria. The experiment consisted of 4 treatments applied at 2 levels (C0 and C3) and replicated three times in a Completely Randomized Design (CRD) to give a total of 48 experimental units. The application of Nitrogen (N) was done at four levels (0, 30, 60 and 90 kg haG1), while the Phosphorous (P2O5) and Potassium (K) were applied at a constant rate of about 60 kg haG1 for all the pots except for the experimental control pots. The design was adopted for both Green House and Field experiments. The results from the study showed that C3 performed better than C0 in Field and Green House experiments with respect to their relative performances of the growth parameters; plant height (cm), stem diameter (mm), number of leaves, leaf length (cm) and leaf width (cm) measured within the Pre-flowering period of 8 weeks. The treatment combination of 90 kg haG1 N, 60 kg haG1 P and 60 kg haG1 K gave the best performance in this study. The study also revealed that the growth rate of the maize plant was directly proportional to the level of N applied with constant levels of P and K providing the basis for developing optimum NPK fertilizer level for the amendment of degraded soil for higher productivity using maize with tolerance to low soil Nitrogen. The study showed that more derelict soils can be put to good use with the appropriate level of NPK Fertilizer application optimum for the right crop, thus aiding the use of hitherto abandoned degraded land and putting more land under cultivation

    Input use and profitability of arable crops production in Nigeria

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    The study accessed the profitability of the usage of all input in crop production through Community-Based Agricultural and Rural Development Project (CBARDP) among rural dwellers in the Northern part of the country with the view of comparing the input usage to recommended practices. The study was carried out in five States where the IITA/AfDB-CBARD project was implemented. The States were Adamawa, Bauchi, Gombe, Kaduna and Kwara. Multi-stage sampling technique was used to randomly select 720 farmers for the study for primary data generation. Farmers in study areas cultivated so many crops but the two most important crops (maize and cowpea) were used for the study. The analytical techniques used were descriptive statistics, Gross Margin and Income-Expenditure Ratio. The results showed that maize and cowpea production were profitable in the study area. However, farmers underutilized available production resources with the exception of land input. In addition, farmers did not comply with the recommended agronomic and management practices. The low usage of inputs especially fertilizer would affect the efficiency levels of maize and cowpea farmers implying that farmers were not using the available inputs optimally therefore, effort must be geared towards enhancing input use to promote competitiveness of maize and cowpea production in the area. Finally, since land input was over-utilized, there may be need for farmers to reduce land under cultivation for better utilization of resources

    Anticoagulant activity of ginger (Zingiber officinale Rosc., Zingiberaceae) rizhome extract

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    Background: Herbal medicines with anticoagulant therapeutic claims could serve as veritable sources of new oral anticoagulant drugs with possible wider safety margins than the currently available onesObjectives: This work was aimed at evaluating a Ginger Rhizome Methanolic Extract in vivo in rats for its potential anti-coagulant activity.Materials and Methods: Thirty-six albino rats were randomized into 6 equal groups, comprising four extracttreated, one standard reference and one control groups. Each of the four extract-treated groups received one of 50 mg/kg, 100 mg/kg, 200 mg/kg and 400 mg/kg ginger rhizome extract prepared in 2% Tween 20. The standard reference group received 1mg/kg warfarin while the control group received 10 ml/kg 2% Tween 20. These dosing were carried out daily concurrently for 14 consecutive days after which blood samples were collected from the animals and evaluated to obtain mean Prothrombin Time (PT), activated Partial Thromboplastin Time (aPTT) and Thrombin Time (TT), comparing each test value with the control and standard reference using one way ANOVA followed by turkey comparisons.Results: The Ginger Rhizome Methanolic Extract significantly prolonged PT, aPTT and TT, compared to the control (p < 0.001). Warfarin did not significantly prolong TT and the extract’s TT prolongation effect was significantly greater than that of warfarin (p < 0.001).Conclusion:This work shows that Ginger Rhizome Methanolic Extract has anticoagulant activity and could therefore be a veritable source of new oral anticoagulants with possible better safety margins. Keywords: Anticoagulants, Ginger rhizome, Thrombosis, Ischaemic disease

    Effect of Different Drying Methods on the Drying Kinetics of Fermented Cardaba Banana Peels

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    Cardaba banana peels (Musa acuminata) were fermented for three days and dried using solar dryer, open sun and tunnel dryer. Nonlinear regression analysis was used to fit in the experimental data. Moisture drying was investigated using Fick’s second law. Statistical tools such as coefficient of determination (R2), reduced chi square (χ2), Mean Bias Error (MBE) and Root Mean Square Error (RMSE) were used to test the reliability of the model. Sample dried in sun had single falling rate pattern whereas samples in solar and tunnel dryer exhibited a second falling rate pattern. The values of R2 ranged from 0.872-0.989, χ2(1.4E-34-0.0624), MBE (-0.0067-0.0491) and RMSE (1.1E-17-0.2247). Effective moisture diffusivity for samples dried in solar, tunnel and sun were 2.92 E-11m2/s, 1.98 E-11m2/s and 1.09 E-11m2/s, respectively. The energy of activation in the process was 64.9kJ/mol. Page model best described drying behavior of the samples

    Microbiological quality of fermented Cassava (Gari) sold in Ota Ogun State Nigeria

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    Thirty six gari samples (eighteen each of white and yellow types) were subjected to microbial analysis. Samples were serially diluted to 104 and appropriate dilutions inoculated by spread plate method onto Nutrient agar, MacConkey agar and Potato- Dextrose agar plates for Total aerobic plate count (TAPC), Coliform count (CC) and Fungal count respectively. TAPC for white gari ranged from 2.0x102 to 1.1x104, coliform count ranged from no growth (NG) to 7.1x103 while fungal count ranged from no growth to 6.0x102. The microbial load of yellow gari ranged from 1.0x102 to 5.0x103 for TAPC, NG to 6.0x103 for coliform count and NG to 3.0x103 for fungal count. The bacteria isolates from the various samples include Bacillus spp Enterobacter spp, Pseudomonas, Staphylococcus and Klebsiella spp. Fungi isolated includes Aspergillus niger, Aspergillus fumigatus, Fusarium, Rhizopus and Penicillium spp. The pH of the samples ranged from 4.76 to 4.94 in the yellow type and 4.78 to 4.91 in the white type. The moisture content was 6 to 8 percent in yellow type and 4 to 7 percent in the white type. Application of good manufacturing practices (GMP) and HACCP in gari production is imperative

    Selection of maize genotypes resistant to pink stem borer and sugarcane borer.

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    Maize is an important economic crop grown in Nigeria. Its production is dramatically affect by the pink stem borer—Sesamia calamistis (Hampson, Noctuidae) and sugarcane borer—Eldana saccharina (Walker, Pyralidae) that are endemic in Southeastern Nigeria. In areas of stress, existing genotypes may marginally do well due to their inherent capabilities. Therefore, it is possible to find useful genes in such areas of stress, since such genes have been responsible for the survival of host crops over the years. Evaluation study was conducted for a range of agronomic characteristics and resistance attributes for 209 local maize collections from Southeastern Nigeria along with three improved check varieties. Field trials were conducted at three locations in a total of four environments in 2001. Highly significant genotypic variances as were noted in all the traits, are indicative of the magnitude of variation that exists among the genotypes, thus providing the opportunity of selection for desirable traits. Furthermore, four traits, namely, leaf feeding, ear damage, stalk lodging and yield were used from across the environments to construct a rank summation index (RSI), which was used to rank the entries for resistance to stem borers. This RSI led to the identification of 11genotypes which represents the best 5% of the 212 genotypes in resistance ability. Genotype AMA TZBR-WC1 (from International Institute of Tropical Agriculture (IITA), Ibadan) had the best overall resistance levels, followed by genotypes SE NG-77 and SE NG-67 (from Umuahia North), SE NG-62 (from Ikwuano), SE NG-148 (from Ukwa West), SE NG-106 (from Bende), SE NG-119 (from Isiala Ngwa), SE NG-33 (from Ikwuano) and SE NG-65 (from Umuahia North)

    TALENT MANAGEMENT AND COMPETITIVE ADVANTAGE: THE MODERATION ROLE OF WORKPLACE CULTURE

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    The study aims to analyse the effect of talent management on competitive advantage through workplace culture moderation. The data was collected from 425 full-time employees from the top ten deposit money banks in Lagos State using a questionnaire as a data collection tool. This research uses a quantitative approach with a survey method. Respondents were selected from the top ten deposit money banks in Lagos State through a stratified random sampling technique. The collected data were analysed using hierarchical regression analysis (HRA) to test the hypothesis and evaluate the regression model specified. These findings show that the effect of talent management on competitive advantage was significantly moderated by workplace culture (β = -0.015, R2 ∆ = 0.003, F∆ = 13.865, p<0.05). It was concluded that workplace culture moderated the relationship between talent management and competitive advantage in the selected deposit money banks in Lagos State. A recommendation was anchored on management to create a positive workplace culture that supports talent management practises to achieve sustainable competitive advantage.  Article visualizations
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