Sexual Networking Analysis in the Context of International Circulatory Migration: Exploring an Analytic-Perspective Gap on Mobile Population’s Sexuality.

The current analytical perspectives on the sexual networking, specifically in the context of  differential sexuality risk committal of mobile groups in their various destinations appear rather narrow. Specifically, it has to a large extent omitted what the geo-transportation perspective analysis of that concept stands to offer both theory and intervention on sexual behaviour of mobile population groups. To exemplify its position, this paper employed the risky sexuality data of Lagos-based international traders to explore the geo-transport perspective of the network concept in order to demonstrate its analytical utility.  It examined the extent to which traders’ act of engaging sexual partners at destinations varies among the regions of visit. It went further, using the sequential order of traders’ trips to explore some novel but useful analyses on risky sexuality, including the monitoring and intervention potentials inherent in the matrix depiction of sexuality risk statistics of internationally mobile population groups. Keywords: sexual networking, risky-sexuality, sexual matrix, mobile population, origin, destinatio

Model variables of risk elements in sexual behaviour: a comparative analysis of Lagos-based traders

This paper compares sexuality risk variables and the logit models of itinerantly differentiated tradesmen groups in Lagos Nigeria. The study, using survey design, compared the groups’ biosocial characteristics and then their sexuality risk variables in two ways. First, it compared their relative vulnerabilities to sexually transmitted infections, using selected ‘life-time’ and recent sexuality parameters. Second, it examined the degree of similarity between the groups’ sexuality risk models. Findings show significant bio-social contrasts between the two groups. While circulators showed greater multi-partnership risk, the non-circulators exceeded marginally on commercial sexuality. Condom-use risk was undifferentiating. Also, the variables in their respective parsimonious risk models showed minimal contrast. The findings among others underscore the relevance of HIV/AIDS sufferers as campaign persons and canvassed for greater emphasis on family life programmes, given the riskier sexuality disposition of married tradesmen, regardless of circulation status.Résumé Cet article compare les variables de risques de la sexualité avec les modèles de la régression logistique de groupes des commerçants se distinguant par itinéraire à Lagos, Nigéria. Utilisant un plan de sondage, cette étude a comparé leurs traits biosociaux avec leurs variables de risques de la sexualité de deux façons. Premièrement, l’étude a comparé leurs vulnérabilités relatives aux infections transmises sexuellement, utilisant des paramètres de la vie et de la sexualité récemment sélectionnés. Deuxièmement, elle a examiné le degré de similarité entre les modèles des risques de la sexualité des groupes. Cette recherche démontre les contrastes biosociaux importants entre les deux groupes. Si les circulateurs ont montré un grand risque en multipartenariat, les non-circulateurs étaient marginalement excessifs en sexualité commerciale. Le risque d’usage des préservatifs était peu pertinent. Aussi, les variables retenues dans leurs respectifs modèles parsimonieux de risques de la sexualité ont démontré un contraste minimal. Cette recherche souligne la nécessité d’usage des victimes du VHI/SIDA pour la campagne contre la maladie et la pertinence des programmes à l’intention des familles, vu l’inclination des commerçants mariés au sexe risqué, malgré leurs statuts de circulation.Mots clés: Sexuelle, comportement à risque, circulateurs, noncirculateurs, modélisatio

A New Class of A-stable Implicit Schemes for Treatment of Stiff System of Ordinary Differential Equations

In this paper, a new class of A-Stable Implicit Rational Runge-Kutta schemes were developed, analyzed and computerized to solve stiff system of ordinary differential equations. The method is motivated by the Implicit Conventional Runge – Kutta Schemes and Rational function approximation.  While its development and analyses make use of Taylor series expansion (Taylor and Binomial) and Pade’s approximation techniques respectively.  The schemes are convergent and A-stable. Keywords: Rational, Runge-Kutta, Consistent, effective, Error bound, Implementation, Convergent, A-stable, A (a) stabl

Information-field differentials and HIV/AIDS notional inclinations of mobility-differentiated population groups: clues from a Lagos study

Abstract This paper aims at filling identified perspective-cum-analytical-framework gap on sexuality-risk analysis between mobile and immobile population groups. It originated from a multi-dimensional study on itinerancy-cum-sexuality-risk study on Lagos, Nigeria, which employed stratified random sampling. It compared the subscription levels of two mobility-differentiated trader-groups to local sexuality-risk notions given their assumed theoretically-differentiated information-fields. The first analysis compared the study populations’ HIV/AIDS’ awareness-duration profiles, as well as their risky-sexuality-condoning notional inclinations. Thereafter, it contrasted their categorized hearsays and notions. Further analyses compute and compare their respective notional-transition scores before examining how HIV/ AIDS’ awareness-duration associate with current notional stances. Among other findings, the mobile group exhibit earlier access to HIV/AIDS information, but differs in the degree to which the time-awareness advantage stimulates them towards health-conducing/safe-sexuality notions. Discussion of policy-cumresearch findings followed.Keywords: Information-field; sexuality-notions; HIV/AIDS; circulators; noncirculatorsResume Cet article comble une lacune identifiée dans le cadre d’analyse des littératures disponibles sur le risque sexuel entre les populations en mouvement et celles demeurant en place. Notre motivation provient d’une étude sur le cheminement du risque sexuel à Lagos au Nigeria. La méthode adoptée est l’échantillonnage aléatoire stratifié. Elle a permis de comparer les niveaux d’adhésion de deux groupes distincts de commerçants et leur compréhension des notions de risque sexuel vu leur supposé différence théorique des informations du terrain. Un tableau qui dépeint la durée de l’état de sensibilisation au VIH/SIDA des populations d’étude précède l’analyse du risque sexuel encouragé par des penchants imaginaires. Cette analyse classifie et fait ressortir les échos et les croyances des populations sondées. Des études approfondies exigent le calcul et la comparaison des points imaginaires de transition. La durée de la sensibilisation contre le VIH/SIDA n’échappera pas à notre examen. Nos résultats ont montré que la population mobile a un accès facile aux informations sur le VIH/SIDA. Cet avantage n’est pas pour un atout pour se protéger contre le fléau. Enfin, les résultats utiles de la recherche seront amplement discutés.MOTS-CLES : information-sur-le-terrain, croyance-sexuelle, vih/sida, circulation-non circulatio

Three Stage Inverse Implicit Runge–Kutta Scheme for Solution of Ordinary Differential Equations

This paper describes the Development, Analysis and Implementation of Three-Stage Inverse Implicit Runge–Kutta Schemes for Treatment Ordinary Differential Equations. Its development adopts Taylor series expansion to generate its parameters.  The analysis of its basics properties adopted Dalhquist A–stable model test equation and theoretical results show that the method is A–stable, P-stable, consistent and convergent.  Numerical results and comparative analysis with existing method show that the method is accurate and effective. Keywords: A–stable, P–stable, effective, accurate, inverse, convergent, consistent

Risky Sexual Transactions across Global Regions: Patterns and Clues from a Lagos-Based Study

Based on the premises that the dominant analytical orientation of research on mobility–related sexuality isgrossly inadequate and the incessant calls for innovative and responsive research and methodological design toaddress the issue, this paper explores certain gaps in the risk-sexuality inclinations of a Lagos-based group ofcirculatory traders. Employing relevant circulatory-cum- sexuality data of the study group, acquired by acombination of purposive and stratified random sampling designs, the paper employed a set-theoretic approachto the study population along a novel ‘origin-destination’ by ‘risky-cum-riskless’ sexuality profile.The study compared the levels and dynamics in the committal of three specific risk-sexuality variables. It wentfurther to examine how the study population is structured in the context of the devised ‘origin-destination’ by‘risk-riskless-sexuality’ grouping. Further, it also examined how the pattern differentiated the categorizedregional destinations, in terms of the risk-designation status of their visitors. The study among others discoveredthe tendency for greater intensity of risky-sexuality locally than at external destinations; a modal percentage of‘origin-destination’ riskless group, but characterised by the least mobility rate, and also a small size ‘origindestination’risky subgroup, but which has the greatest spatial mobility rate. The paper finally explores theresearch and intervention clues of its findings.Keywords: Sexuality-Risk, mobile population, disaggregated analysis, intervention

Nigeria-Cameroon Boundary Dispute: The Quest for Bakassi Peninsular

This paper appraises African Boundary Politics within the theme of boundary conflicts, questions after independence – irredentism, the concern and intervention of international bodies with focus on Nigerian-Cameroon Boundary Disputes: The Quest for Bakassi Peninsular. The aim is to highlight European conquest and division of Africa contrary to existing traditional boundaries in the Pre-Colonial Africa and how modern African boundaries evolved in the colonial era affected post-colonial era territorial boundaries, cross-border activities and the basis of boundary disputes in modern African states. The paper noted the level of cooperation achieved in resolving boundary issues, securing interventions and other approaches to peace settlement. Research method adopted is historical approach which took cognizance of existing scholarly works and the use of simple descriptive analysis of historical data to authenticate their accuracy in the advancement of knowledge. Keywords: African Boundary Politics, Nigerian-Cameroon Boundary Dispute, Bakassi Peninsular, Boundaries, Cross-Border Relations, Colonialism, Treaties, International Law and Diplomacy, ICJ, Nigeria, Cameroon

A Study of Hospital Waste Generation and Management Practice in Akure, Nigeria

This study was carried out in Akure, the capital of Ondo State, Nigeria to assess the current practice of hospital wastes management, the magnitude and variety of wastes and the awareness of the stakeholders on the implications of their activities. The composition of wastes found in the 20 healthcare facilities visited included garbage, syringes, swabs, gauze, pads, sharps, paper, glass materials, plastics and allied, clothing materials, wastewater with blood traces and the likes. The results revealed that there is no uniform practice of hospital waste management among the hospitals studied. The study recommended that there should be source segregation of waste within each hospital as all wastes are often mixed in the same waste basket. It further recommended that government and the relevant agents should be at alert to their responsibilities of regulating the waste management practices among the hospitals in the city. Keywords: Diagnosis, Hospital, Infectious wastes, Generation, Segregation, Management, Pathogenic organisms.African Research Review Vol. 2 (3) 2008: pp. 292-30

Influence of Selected Curing Techniques on Compressive Strength of Concrete From Palm Kernel Shell Ash and Ordinary Portland Cement

This paper discusses the findings of an experimental study on the effect of various curing procedures on the compressive strength of concrete produced by partially substituting portland cement with Palm Kernel Shell Ash (PKSA). Palm kernel shell ash was utilized in a 1:2:4 mix ratio as a partial substitute for ordinary Portland cement (OPC) at percentage levels of 0%, 10%, and 15%. River sand with particles passing a 4.75 mm BS sieve was used, as well as crushed aggregate with a maximum size of 20 mm, and palm kernel shell ash with particles passing a 212 μm sieve. The compressive strength of the test cubes (150 mm x 150 mm x 150 mm) was determined after 7, 28, and 56 days of curing. The results demonstrated that test cubes containing Palm kernel shell ash developed strength over a longer curing period than ordinary Portland cement concrete samples and that the strength changes depending on the amount of PKSA in the cube samples. The findings showed that at 28 days, test cubes with 5%, 10%, and 15% PKSA content in all curing procedures utilized obtained a greater compressive strength. Curing by immersion produced the highest compressive strength in all replacement level while the concrete cured by sprinkling and spraying gives a lower strength in all replacement lev