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.

Haematological studies on frizzled and naked neck genotypes of Nigerian native chickens.

Abstract: Variation in haematological parameters of Nigerian native chickens was studied using 60 clinically normal frizzle-feathered, naked-neck, and normal-feathered native chickens. These included red blood cell count, haemoglobin, packed cell volume, white blood cell count, mean corpuscular volume, mean corpuscular haemoglobin concentration, serum glucose, urea, cholesterol, albumin, globulin and creatinine. Normal-feathered birds had higher (p < 0.05) mean values compared to frizzled and native neck genotypes except for albumin, red blood and white blood cells, and mean cell haemoglobin concentration. Males generally had higher mean values than their female counterparts across all genotypes. Correlation coefficients among the parameters were significant (p < 0.001) with r values ranging from 0.26 between red blood cell and mean corpuscular haemoglobin to 0.92 between red blood cell and cholesterol. Sufficient genetic variation therefore exists for haematological parameters among Nigerian native chickens that may represent indicator traits for further study. However, the application of molecular tools will provide better understanding and application of these differences.

Oil spill incidents and pipeline vandalization in Nigeria: Impact on public health and negation to attainment of Millennium development goal: the Ishiagu example

Abstract: Purpose – The purpose of this paper is to review oil spill incidents and pipeline vandalism in Nigeria between 1970 and 2006 and to examine the potential danger posed by such activities to public healthDesign/methodology/approach – The approach adopted to achieve this objective is questionnaire administration on health impacts Also secondary sources of information come from textbooks and journals However, data from natural resources exploitation and hazards are collated and analyzedFindings – It is evident that, out of the 1,000 reported oil spill incidents analyzed, some hundreds of thousands of barrels of oil are lost to the environment Graphic pictures of typical oil spill through acts of vandalism in Ishiagu, Ebonyi State, Nigeria are analyzed and reviewed The run‐off and sedimentation of this pollutant in fresh water systems severely degrade water quality, affect fish spawning and aquatic invertebrates' habitats, thus lowering food web productivity Incidentally the spill‐over effect on humans

Impact of dams on the hydrology of the Niger Delta

Abstract: The Niger Delta has a fragile coastline in which the river hydraulic forces are in dynamic equilibrium with coastal processes. The impoundment of 49 dams in the Niger catchment area with a combined reservoir capacity of 36 million m3 has a direct impact on the Niger Delta, resulting from the reduction in flow and sediment delivered to the coast. The delta has experienced shifts in the ecological equilibrium manifested as adjustments to the coastline geometry, lower flood water levels and upstream migration of tidal influences. Although the effects of upstream dams are cumulative, the large capacity dams have the most immediate impact. The construction of the dams results in a sudden drop in water level which is followed by a gradual recovery. Data from the Niger Delta suggests that although some rivers recover part of their flow, levels are still below those which existed prior to the construction of the Kainji Dam.

Effect of Chemical Activation on the Adsorption of Heavy Metals Using Activated Carbons from Waste Materials

Abstract: The effect of chemical activation on the adsorption of metals ions (Cr2+, Cu2+, Ni2+, Pb2+, Fe2+, and Zn2+) using waste Nigerian based bamboo, coconut shell, and palm kernel shell was investigated. The bamboo, coconut, and palm kernel shell were carbonized at 400°C–500°C and activated at 800°C using six activating agents. Chemical activation had significant effect on the iodine number and invariably increased the micropores and macropores of the activated carbons produced from bamboo, coconut, and palm kernel shell. It also affected the adsorption of metal ions and the type of carboneous material used for activation. The highest metal ions adsorbed were obtained from bamboo activated with HNO3. The cellulose nitrite formed during the activation of bamboo with HNO3 combined with high pore volume and low ash content of bamboo effectively create more reaction sites for adsorption of different metal ions. This shows that waste bamboo activated with HNO3 can effectively be used to remove metal ions from waste streams and in different metal recovery processes than activated carbon from coconut shell and palm kernel shell.