Intra-urban traffic and parking demand in Uyo Urban Area

In Nigeria, the dominant mode of intra-urban mobility is the automobile motor vehicle. However, parking facilities as element of urban transportation development seems to be neglected in the face of increasing car ownership on the hand and increasing activities which generate enormous parking demand on the other. The aim of this study is to examine the intra-urban circulation and parking demand against the background of noticeable problems of parking in Uyo metropolis. An empirical design approach was employed in the investigation and vehicular trip generation count at designated activity areas was carried out between the hours of Bam 11am from Monday to Friday. Regression models were employed to measure the relationship between parking demand and parking space capacity per activity area. The result shows that while parking space demand is very high, the activity areas with less parking facilities, receives less patronage. The study recommends a comprehensive parking programme for Uyo metropoli

Biosorptive Removal of Hexavalent Chromium by Rice Husk Ash and Silica from Aqueous Solution

Hexavalent chromium ion removal by adsorption using rice husk ash and silica prepared from rice husks obtained locally from rice mill as biosorbents was evaluated as low cost wastewater treatment in this study. Batch equilibrium isotherm experiments were performed as well as effect of dosage and initial chromate solution pH to determine the potentials of the sorbent to remove hexavalent chromate ion from synthetic fed wastewater. Equilibrium isotherm experimental data isotherms were tested with isotherm models (Langmuir, Freundlich and Tempkin models), being best represented by the Langmuir model. Optimum conditions were: dosage = 0.5 g / 200 ml at room temperature and pHo > 6. The equilibrium between adsorbate in the solution and on the adsorbent surface was practically achieved in 2 h. The monolayer sorption capacity was 67.45 mg/g for rice husk silica and 55.98 mg/g for rice husk ash. Estimation of energy of the sorption process revealed chemisorption as the prevailing means of interaction between the adsorbents and adsorbates moieties. The abundance and affordable (cheap) cost of rice husks justifies its use as a precursor in the preparation of rice husk ash and silica as effective adsorbents for chromium removal from industrial effluents.Keywords:Hexavalent chromium, Biosorption, Isotherm, Rice husk ash, Rice husk silica DOI: 10.7176/CMR/13-1-02 Publication date: January 31st 202

Design and construction of a prototype cannongun as a siesmic source

No Abstract

Theoretical design of an optimum surface seismic source

No Abstract. Nigerian Journal of Physics Vol. 17 (Supplement) 2005: pp. 171-17

Urinary Schistosomiasis in a Rice- Farming Community in Biase Area of Cross River State

This study was designed to determine the prevalence of urinary schistosomiasis in a rice-farming community in Adim Village in Biase area of Cross River State. Urine samples were collected from 412 participants and examined using sedimentation method. Standardized questionnaires on the knowledge, attitude, perception, practices and beliefs associated with urinary schistosomiasis, in terms of blood in urine, were administered to the respondents. The prevalence of 42.2% was observed, with males having a higher prevalence of 54.0% than females, with 30.0%. Ricefarmers had prevalence of 60.2%, which was highest for all the occupational groups in the area, while the lowest prevalence of 16.6% was recorded for Artisans. Age group 11 – 20 years had highest prevalence of 52.0% while the lowest was 32.6% in the 41-50 years age group. In general, there was a poor understanding of the means of exposure, transmission, treatment and control of the disease. According to respondents, causes of blood in urine included exposure to sun (42%), drinking dirty water (40%) entering dirty water (18%). Out of the 412 respondents, 66.0% stated that haematuria was a sign of disease while 24.0% said it was venereal disease and 18.0% said that it was caused by witchcraft while 12.0% considered it as coming of age for the men. Most respondents (72.0%) thought that it was shameful to have blood in urine while 56.0% thought the disease could be cured using drugs and 32.0% said that it could be cured by traditional healers. The data indicates that there is a high prevalence of urinary schistosomiasis in the community and a poor knowledge of the disease and means of transmission. Health education is recommended along with provision of safe water and proper sanitation facilities for the community as a first step in eradication of the disease.Keywords: Urinary Schistosomiasis, Health Education, Cross River StateNigerian Journal of Parasitology, Vol. 33 [2] September 2012, pp. 197-20