233 research outputs found

    Biomass accumulated by Mansonia altissima A Chev. seedlings under the effect of Arbuscular mycorrhiza, fertilizer application and moisture supply

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    Mansonia altissima is an indigenous hard wood species, which of great use both locally and internationally, this has led to much pressure being put on them, which in turn caused over-exploitation. This study investigated the effect of mycorrhiza, fertilizer and moisture supply on the biomass accumulation of M. altissima seedlings. Seedlings were monitored under these three factors at 3 levels each mycorrhiza (0g, 10g and 20g), fertilizer (0g, 1g and 2g) and water supply ((once in a week, twice in a week and everyday, 1/7, 4/7, and 7/7 respectively). The study was conducted in 3x3x3 factorial experiment in completely Randomized Design (CRD) and subjected to ANOVA. The study revealed that mycorrhiza does not have significant effect on the dry matter of M. altissima seedlings while fertilizer and watering regime had significant effect at (p>0.05) on leaf dry weight, (LDW), stem dry weight (SDW), root dry weight (RDW) and total dry weight (TDW). It was observed that seedlings LDW ranged from 1.22g to 2.42g, SDW ranged 0.39g to 0.81g, RDW ranged from 0.23 to 0.49 and TDW ranged from 11.83g to 3.67g respectively after 24 weeks. The biomass accumulated by M. altissima under the interaction of three factors revealed that M2F2W3seedligs treated with 10g mycorrhiza, 1g of N P K fertilizer and watering everyday was higher compared to other interactions, this implies that M. altissima preferred little fertilizer application and watering everyday for optimum biomass productionKeywords: Indigenous, biomass accumulation, mycorrhiza, fertilizer, and Mansonia altissim

    Efficacy of single dose anticoagulants against rodents damaging coconut

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    Crown baiting with bromodiolone 0.005 per cent ready made rodenticide cake @ four bits, weighning 16.5g each at the base of the four bunches bearing the tender nuts of fist size and above on four sides in the crown of palm was found very effective in controlling rodent damage

    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

    Effect of Chemical Treatments for Cellulosic Plants on Some Macro Minerals

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    We treated barley straw with sodium hydroxide, ammonium hydroxide and urea to improve the nutrition efficiency. Some macro minerals “calcium, potassium and phosphor were measured. No effect for chemical treatments on Ca, K and P (%). Potassium content (%) was 0.033, 0.038, 0.042 and 0.035 for untreated straw or treated with NaOH, NH4OH and Urea. Phosphor content (%) was 0.6, 0.65, 0.89 and 0.82, while calcium (%) was 0.90, 0.95, 0.88 and 0.93 for untreated straw or treated with NaOH, NH4OH and Urea respectively. In conclusion: No effects for treated straw with NaOH, NH4OH or urea on macro minerals like Ca, K and P and in respectively for other minerals. Key word: Chemical treated straw, calcium, potassium, phosphor, macro elements

    Dataset for the development of a diagnostic schedule for a defective LC-195V5 CNC milling machine at FUTA central workshop

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    The dataset represented in this article describe a diagnostic schedule for a defective LC-195V5 CNC milling machine using PERT. The efficiency of the technicians who repaired the CNC machine tools was measured based on fault location within the shortest possible time. A diagnostic schedule was developed which showed the sequential means of troubleshooting within a possible shortest time. Two approaches were employed. Forward Pass (FP), which involved the diagnosis from electrical parts through Computer (CNC) to mechanical components and Backward Pass (BP) which involved the diagnosis from computer component through electrical parts to mechanical parts. Three different levels of expertise (trials) were used for each of the mode of diagnosis and the time to diagnose each component part was recorded. Two separate PERT network diagrams were drawn based on the inter-relationship of the component parts of the machine and their Critical Paths were determined

    The COVID-19 pandemic and health workforce brain drain in Nigeria

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    Over the years, the Nigerian healthcare workforce, including doctors, nurses, and pharmacists have always been known to emigrate to developed countries to practice. However, the recent dramatic increase in this trend is worrisome. There has been a mass emigration of Nigerian healthcare workers to developed countries during the COVID-19 pandemic. While the push factors have been found to include the inadequate provision of personal protective equipment, low monthly hazard allowance, and inconsistent payment of COVID-19 inducement allowance on top of worsening insecurity, the pull factors are higher salaries as well as a safe and healthy working environment. We also discuss how healthcare workers can be retained in Nigeria through increment in remunerations and prompt payment of allowances, and how the brain drain can be turned into a brain gain via the use of electronic data collection tools for Nigerian health workers abroad, implementation of the Bhagwati’s tax system, and establishment of a global skill partnership with developed countries

    Search for dark matter produced in association with a hadronically decaying vector boson in pp collisions at sqrt (s) = 13 TeV with the ATLAS detector

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    A search is presented for dark matter produced in association with a hadronically decaying W or Z boson using 3.2 fb−1 of pp collisions at View the MathML sources=13 TeV recorded by the ATLAS detector at the Large Hadron Collider. Events with a hadronic jet compatible with a W or Z boson and with large missing transverse momentum are analysed. The data are consistent with the Standard Model predictions and are interpreted in terms of both an effective field theory and a simplified model containing dark matter

    Measurement of the View the tt production cross-section using eÎŒ events with b-tagged jets in pp collisions at √s = 13 TeV with the ATLAS detector

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    This paper describes a measurement of the inclusive top quark pair production cross-section (σttÂŻ) with a data sample of 3.2 fb−1 of proton–proton collisions at a centre-of-mass energy of √s = 13 TeV, collected in 2015 by the ATLAS detector at the LHC. This measurement uses events with an opposite-charge electron–muon pair in the final state. Jets containing b-quarks are tagged using an algorithm based on track impact parameters and reconstructed secondary vertices. The numbers of events with exactly one and exactly two b-tagged jets are counted and used to determine simultaneously σttÂŻ and the efficiency to reconstruct and b-tag a jet from a top quark decay, thereby minimising the associated systematic uncertainties. The cross-section is measured to be: σttÂŻ = 818 ± 8 (stat) ± 27 (syst) ± 19 (lumi) ± 12 (beam) pb, where the four uncertainties arise from data statistics, experimental and theoretical systematic effects, the integrated luminosity and the LHC beam energy, giving a total relative uncertainty of 4.4%. The result is consistent with theoretical QCD calculations at next-to-next-to-leading order. A fiducial measurement corresponding to the experimental acceptance of the leptons is also presented
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