Bounded Emotionality and Polygamous Tradition in an Entrepreneurial Family Businesses in Nigeria

The goal of this paper is to examine bounded emotionality and polygamous tradition in an entrepreneurial family business in Nigeria. We argue that it is essential to consider culture of polygamy among family firms especially in the south west Nigeria. The multiple case method was used to provide valuable insights into entrepreneurial family businesses in Nigeria. To achieve better results, cases were drawn from diverse business sectors like merchandising, manufacturing and consultancy services among the family firms in South West, Nigeria. The paper analyses the limit of bounded emotionality, impact of nepotism and family ties in the polygamous family businesses. The findings reveal that the polygamous tradition has being in existence mostly in Africa for decades, hence, it brings some degree of sensitivity and unison to the family business. Finally, the paper demonstrates the importance of conducting further research on the concept of polygamy in Africa and tis impact on the family business

Occurrence of Orthetrum abbotti Calvert (1892) (Odonata, Libellulidae) and intraguild predation on Clarias gareipinus Burchell, 1822 (Suliformes, Clariidae) and Oreochromis niloticus L., 1758 (Perciformes, Cichlidae) fry in Lagos fish farms

Intraguild predation occurs when species competing for the same resource prey upon or parasitize one another. This may result in economic losses under commercial circumstances. A survey of the insect species of fish farms in Badagry and Ojo Areas of Lagos State, Nigeria was carried out followed by an evaluation of the predatory ability of Orthetrum abbotti nymphs on fish fry. Nymph predation was evaluated in the laboratory against fry of Clarias gariepinus and Oreochromis niloticus. Samples of insects were randomly collected from 10 earthen ponds, 10 concrete ponds and the vegetation surrounding the ponds and identified over a period of 12 weeks from three study fish farms. Six species of insects belonging to four orders namely Notonecta unifasciata, Gerris remigis, O. abbotti, Aedes aegypti, Dysticus marginalis and Acentria ephemerella syn. niveus were collected from the ponds. Studies on feeding preference of 5th nymphal instar of O. abbotti on fry of C. gariepinus and O.  niloticus over other food types revealed  that the dragonfly preferred to feed more on C. gariepinus fry than on O. niloticus although there was no significant difference in the number of O. niloticus and C. gariepinus fry preyed upon by O. abbotti nymphs

Is renal medullary carcinoma the seventh nephropathy in sickle cell disease? A multi-center Nigerian survey.

Introduction: Previous studies had enlisted renal medullary carcinoma (RMC) as the seventh nephropathy in sickle cell disease (SCD). Clinical experience has contradicted this claim and this study is targeted at refuting or supporting this assumption. Objective: To estimate the prevalence of RMC and describe other renal complications in SCD. Materials and methods: 14 physicians (haematologists and urologists) in 11 tertiary institutions across the country were collated from patients\u2019 case notes and hospital SCD registers. Results: Of the 3,596 registered sickle patients, 2 (0.056%) had been diagnosed with RMC over a ten year period, thereby giving an estimated prevalence rate of 5.6 per 100,000. The most common renal complication reported by the attending physicians was chronic kidney disease (CKD). The frequency of routine renal screening for SCD patients varied widely between centres \u2013 most were done at diagnosis, annually or bi-annually. Conclusion: The ten year prevalence of RMC in Nigerian SCD patients was determined to be 5.6 (estimated incidence of 0.56). RMC is not more common in SCD patients and therefore cannot be regarded as a \u201cSeventh Sickle nephropathy\u201d. Most of the managing physicians reported that the commonest nephropathy observed in their SCD patients was chronic kidney disease

'TINA', Aids, and the underdevelopment problem in Africa

The assumption that 'There Is No Alternative' (TINA) to capitalism as practiced in the United States of America and Western Europe has been the bane of aids effectiveness in assisting to solve the underdevelopment problem in Africa. This paper attempts to show that except there is a fundamental reorientation in the conceptualization of capitalism-free market and democracy-the underdevelopment problem would only be further complicated with aids

Machine learning applications in biomass pyrolysis: From biorefinery to end-of-life product management

The thermochemical conversion of biomass is a promising technology due to its cost-effectiveness and feedstock flexibility, with pyrolysis being a particularly noteworthy method for its diverse product range. Despite the potential of pyrolysis, commercialization remains elusive, and there is a growing need to fully understand its dynamics to facilitate process scaling up. However, waste biomass pyrolysis is complex, time-consuming, and capital-intensive. Machine Learning (ML) has emerged as a possible means of supporting and accelerating pyrolysis research despite these challenges. This study provides a comprehensive overview of the use of ML in pyrolysis, from biorefinery to end-of-life product management. In addition, the success of ML in process optimization and control, predicting product yield, real-time monitoring, life-cycle assessment (LCA), and techno-economic analysis (TEA) during biomass pyrolysis is highlighted. Several ML methods have been utilized in a bid to study pyrolysis; the potentiality of artificial neural networks (ANNs) to learn extremely non-linear input-output correlations has led to the widespread adoption of these networks. Furthermore, the current knowledge gaps in ML research in pyrolysis and future recommendations for its application are identified. Finally, this study demonstrates the potential of ML in accelerating research and development as well as the scalability of pyrolysis of biomass