UNEARTHING THE LINK BETWEEN SOCIO-ECONOMIC STATUS AND WALLING MATERIAL SELECTION FOR AFFORDABLE HOUSING IN SOUTHWEST NIGERIA

The walling material component constitutes a substantial part of the building envelope with consequent implication on overall housing cost. This study examined the impact of socio-economic status (SES) of respondents on walling material selection preferences for affordable housing in southwest Nigeria. Data was collected in a cross-sectional field survey through administration of structured questionnaires on randomly selected respondents in four Local Government Areas (LGAs) of three States in Southwest Nigeria. Data obtained was analyzed using descriptive and inferential statistics with results presented in tables and figures. The result showed a high aspiration for homeownership amongst respondents. The result also showed that lesser cost implication of walling materials does not translate to acceptance and use. Most importantly, the results showed high significant relationship between SES and choice of walling material for affordable housing. The study recommends that selection of walling should be responsive to the SES of households to make housing affordable. Study is also useful for guiding formulation of affordable housing policy in Nigeria that is responsive to the SES of households in the study area

Biosurfactants as Potential Antitumor Agents

Tumors are a solid mass of tissue that forms from the clustering of numerous abnormal cells. Many tumors are benign (non-cancerous) while most are malignant (cancerous). One common thing about tumors is that whether malignant or benign, they require treatment. However, the treatment approach differs for both classes of tumors. Although both types of tumors can affect different body parts (such as bones, skin, tissue, organs, and glands), special attention is mostly given to cancerous or malignant tumors because they are life-threatening and require special treatment. Chemotherapy and irradiation are currently the conventional treatment strategies for malignant tumors, but the problems of drug resistance and toxicity associated with tumor chemotherapy are driving the continued search for novel biocompatible antitumor agents as advocated by the World Health Organization. In this regard, natural products have received much research attention as an alternative and effective option for tumor management. Biosurfactants are natural compounds biologically produced by some strains of bacteria with potential application in different fields. Biosurfactants have attracted medical attention as promising molecules due to their diverse properties, versatility, and structural novelty. The medical field witnessed an increased commercial application of biosurfactants during the past decade because they are highly biocompatible, biodegradable, and exhibit low toxicity. The antioxidant, antibacterial, antiproliferative, and antiviral activities of biosurfactants make them relevant molecules for the treatment of many diseases, including tumors. Many types of biosurfactants such as surfactin, iturin, and fengycin lipopeptide have been produced from several Bacillus species and studied for antitumor activity by several scholars against breast cancer, colon cancer, leukemia, hepatoma, etc. These biomolecules are believed to significantly inhibit the proliferation of multiple tumor types by interfering with some tumor development processes. This chapter reviewed most of the previous studies on biosurfactants and their antitumor activities, focusing more on their potential mechanisms of action and possible grounds for advanced applications

UNEARTHING THE LINK BETWEEN SOCIO-ECONOMIC STATUS AND WALLING MATERIAL SELECTION FOR AFFORDABLE HOUSING IN SOUTHWEST NIGERIA

The walling material component constitutes a substantial part of the building envelope with consequent implication on overall housing cost. This study examined the impact of socio-economic status (SES) of respondents on walling material selection preferences for affordable housing in southwest Nigeria. Data was collected in a cross-sectional field survey through administration of structured questionnaires on randomly selected respondents in four Local Government Areas (LGAs) of three States in Southwest Nigeria. Data obtained was analyzed using descriptive and inferential statistics with results presented in tables and figures. The result showed a high aspiration for homeownership amongst respondents. The result also showed that lesser cost implication of walling materials does not translate to acceptance and use. Most importantly, the results showed high significant relationship between SES and choice of walling material for affordable housing. The study recommends that selection of walling should be responsive to the SES of households to make housing affordable. Study is also useful for guiding formulation of affordable housing policy in Nigeria that is responsive to the SES of households in the study area

Mathematical Analysis of a Reactive Viscous Flow through a Channel Filled with a Porous Medium

An investigation has been carried out to study entropy generation in a viscous, incompressible, and reactive fluid flowing steadily through a channel with porous materials. Approximate solutions for both velocity and temperature fields are obtained by using a rapidly convergent Adomian decomposition method (ADM). These solutions are then used to determine the heat irreversibility and Bejan number of the problem. Variations of other important fluid parameters are conducted, presented graphically, and discussed