Comparison Of Canonical Correlation Analysis And The Generalized Canonical Correlation Analysis Using The Lognormal And Cauchy Distributed Data

This work compares the Canonical Correlation Analysis and Generalized Canonical Correlation Analysis for two data sets using Lognormal and Cauchy distributions. Data of different sample sizes (10, 20, 30, 40 and 50) were simulated and used to perform the analysis. Their relative efficiencies were calculated and it was discovered to be the same for two data sets except for scaling. Keywords: Relative efficiency, Scaling, Canonical Correlation Analysis, Generalized Canonical Correlation Analysis, Lognormal, Cauch

Agronomic performance and adaptability of three varieties of watermelon (Citrullus lanatus) on sandy loam soil in derived savanna

Amidst tropical vegetables, watermelon (Citrullus lanatus) is increasing popular for its numerous health benefits. In Nigeria, this vegetable crop is still under-produced in the relatively more humid southern part where it is heavily consumed. This situation is partly due to lack of empirical data on existing exotic and local varieties particularly in the southeastern region of the country. In this study, field trials with three watermelon varieties [Lagone (exotic), Koloss (exotic) and Charleston gray (local) serving as control] were conducted on a sandy loam acid soil at Nsukka in southeastern Nigeria typifying Derived Savanna. They were evaluated for agronomic performance including vegetative growth and fruit yield. Koloss took less time (~ 10 days) to emerge compared to Lagone (15 days) and Charleston gray (14 days). Lagone attained first and 50% flowering earlier (36 and 39 days, respectively) than the others. Charleston gray had the longest vine (196.42 cm) nine weeks after planting but showed fewer fruits (3.33) than the others, while Koloss showed largest fruit width (15.66 cm). Fresh fruit yield indicated nominal differences but tended to be highest in Koloss (1.95 kg/plant); Lagone and Charleston gray had 1.85 and 1.74 kg/plant, respectively. For enhanced production of watermelon, Koloss is recommended to farmers in Nsukka agro-environment and similar climate-soil zones in the savanna. In the future, this exotic variety could be hybridized with the local Charleston gray and the hybrid seeds evaluated against the pure lines.Keywords: watermelon ecology, exotic varieties, vegetative growth, fruit yiel

Experience With Hydroxy Carbamide Use; Indications, Adverse Effects And Clinical Course At A Tertiary Care Hospital In Lagos

Introduction: Sickle cell disease is the most common inherited haemoglobin disorder with the highest prevalence in Sub-saharan Africa. The clinical course of the disease has improved with newborn screening, penicillin prophylaxis and hydroxycarbamide use amongst other interventions. Despite the data on the benefit of hydroxycarbamide use, the uptake of hydroxycarbamide in poor resource  settings is still very low. Materials and Methods: This was a retrospective study at the Lagos University Teaching Hospital from January to December 2017 among children with sickle cell anemia on hydroxycarbamide. Ethical Approval was obtained from the Health, Research and Ethicscommittee of the Hospital. Statistical analysis was with SPSS version 20. Results: Atotal of 1039 children were seen in the period under review with 13.5% of them on hydroxycarbamide. The commonest  indication for hydroxycarbamide was high risk for stroke while lumbar infarction was the least common indication. Adverse effects were seen in 2.1% of the recipients and all these patients had derangements of liver function. None of the recipients had hematologic adverse effects. Conclusion: The use of hydroxycarbamide is relatively safe among children living in resource constrained settings but long term follow-up among a larger cohort is desired. Key words: Hydroxycarbamide, indications, sickle cell diseas