Rivers State University of Science and Technology

About: Rivers State University of Science and Technology is a education organization based out in Port Harcourt, Rivers, Nigeria. It is known for research contribution in the topics: Population & Threatened species. The organization has 1826 authors who have published 1833 publications receiving 15183 citations.

Assessing Variations in Ijo Migrant Fishermen Architecture Through Spatial Classification

Abstract: This article focuses on identifying variations in the base camp dwellings of Ijo migrant fishermen in Nigeria and Cameroon. Migrant fishermen in diasporas learn the techniques of the fishing trade and the skills required for building their vernacular dwellings by cultural transmission methods. This includes obtaining instructions by oral tradition and hands-on practice while they serve as apprentices under parents, master fishermen, or elders. The designs of the dwellings were patterned after the mental blueprints obtained from similar dwellings in their ethnic homeland in Bayelsa State, Nigeria. As a result of cultural dynamism, changes may have occurred in the design of migrant fishermen’s dwellings in diasporas over time. The accumulation of such changes may have constituted significant variations in the design of these vernacular dwellings. The variations in these designs have been analyzed using a spatial classification method, and this article bears some of the findings of the study.

Transient Flow of a Magnetised Plasma due to Thermal perturbation

Abstract: At time t<0, a steady stationary condition of a fully ionised gas exists in space, such that the velocity components, the induced magnetic field and a uniform temperature are given by (0,0,0),(0, 0,Ho) and Θ, respectively, in the rectangular coordinate (x,y,z). At t =0, a sudden increase of temperature is applied at z = 0. If the Eckert terms are neglected, an integral transform technique is employed to solve for the z–axis related transient flow (U,V,0),(Ho), and temperature Θ (z,t). For large applied magnetic field, Ho the flow is observed to exhibit disturbance modes some of which are oscilatory, and some streaming modes are seen accompanied by the expected decays. For a thermally perturbed plasma the flow is seen to be largely governed by conduction parameters if viscous terms are not neglected under the MHD approximations.

Influence of Traditional Beliefs on Agricultural Activities of Women in Ogbia Local Government Area, Bayelsa State

Abstract: The study investigated the traditional beliefs in Ogbia, and how they influence the agricultural activities of women in the area. It determined the nature and forms of these traditional beliefs, and their influence on the women involved in agriculture. A sample of 200 women were randomly selected from ten communities . The instrument for data collection was a 24 item questionnaire, titled, the influence of traditional beliefs on agricultural activities of women in Ogbia, its face validity was done by two experts in the field of community development, while a reliability coefficient of 0.75 was established using Cronbach Alpha test. 200 copies of it, were distributed to elicit responses from the respondents, while 187 copies were received and used for data analysis, using percentage and mean. The study, revealed that. Ogbia women are very religious: 85.03% and 14.97% are Christians and traditional worshipers respectively. It discovered that most women are into farming mainly to feed the family. It was also found that, traditional beliefs in Ogbia, prevent women from growing certain crops ,fishing in “certain” lakes, processing of some crops , farming on days regarded as sacred and taking part in some farm activities like land preparation. . The study revealed a significant negative relationship between traditional beliefs and agricultural activities of women. It was recommended that women’s access to production resources such as land, credit and appropriate technologies, be improved so as to enhance their capacity in food production among others.

Laboratory Investigation of Behavioural Changes in Tensile Strength of Bituminous Concrete Mixes Subjected to Differential Loading Temperature

Abstract: This paper presents a laboratory investigation of the behaviour of bituminous concretemixtures when subjected to differential loadings in temperature with respect to tensilestrength. The study became necessary because previous works have revealed that bitumenwhich is the binding agent in bituminous concrete can easily flow or flush under increasedtemperature causing separation from aggregates. For the present study, laboratory specimensof bituminous concretes were prepared in accordance with specified standards and twoindirect tensile testing methods (split cylinder and double punch tests) were used to evaluatethe behavioural changes in tensile strength that occurred. The laboratory procedure involvedtesting the specimens under increasing temperature of loading between 20°C - 60°C withincremental loadings of 10°C. The study was carried out for three categories of traffic –Light, Medium and Heavy traffic categories respectively. The results obtained revealed thatincrease in mix temperature of asphalt/bituminous concretes from 20°C - 60°C adverselyaffected the tensile strength behaviour of the concrete under external traffic loading.Furthermore, results of tensile strength from the double punch test were better than thosefrom split cylinder test for all categories of traffic under varying temperature between 20°C -60°C.

Modeling Void Ratio Influences on Shigella Transport in Heterogeneous Grave Depositions

Abstract: The reaction from 1996 Amendments on Safe Drinking Water Act, including the U.S. Environmental Protection Agency (USEPA) that are the developer of Ground-Water Rule (GWR). This will always protect users of public ground-water supplies from viral contamination [1-6]. Due the fact that total coliform bacteria are normally applied an indicator of the possibility or probable existence of pathogenic contamination from microbial pathogens, several groundwater suppliers applied the absence of coliform as justification for not disinfecting source water. Despite the inherent complications related with the identification of viruses in water, disease epidemics have been attributed to specific episodes of viral pollution in ground water [3-7]. There has been a suggestion as viral indicators. Coliphages are a bacterial virus that is known to infect the coliform bacterial group. Most of these coliphages that are superficially similar to the enteric viruses, they are known to share symmetrical structures, morphologies, and sizes, they also have similar half-lives in natural waters [8-10]. Some coliphages, precisely infect “male” strains of Escherichia coli (E. coli), or “malespecific” coliphages, they are normally found in human feces, this has been identified in huge numbers in human wastewater [11].