Ebonyi State University

About: Ebonyi State University is a education organization based out in Abakaliki, Ebonyi, Nigeria. It is known for research contribution in the topics: Population & Pregnancy. The organization has 1351 authors who have published 1474 publications receiving 20111 citations.

Length-Weight Relationship And Condition Factor Of Distichodus Species Of Anambra River

Abstract: The length-weight relationships (LWRs) and condition factor of Distichodus 169 Distichodus rostratus, 167 D. brevipnnis and 163 D. engycephalus from Anambra river were investigated from November 2004 to October 2005. LWRs showed that the b-values for the combined sexes were 3.051, 3.114 and 3.040 for D. rostratus, D. brevipinnis and D. engycephalus respectively. Thus, all the Dstichodus species exhibited isometric growth with high, positive and significant correlations. The mean condition factor for the combined sexes was 1.12+-048, 1.06 +- 022 and 0.94+- 0.33 for D. Rostratus, D. brevipinnis and D. engycephalus respectively. Except for D brevipinnis, there was no significant difference (P > 005) in the condition facor (K) between the males and females of other species The condition factor also demonstrated interseasonal variability in all the species. The importance of condition factor in the breeding activities o Distichodus species is discussed. Keywords : Distichodus, Length-weight relationships, Condition factor Animal Research International Vol. 3 (2) 2006 pp. 461-465

The primacy of social networks in entrepreneurship: a study of networking ability and innovativeness among university students in north central nigeria

Abstract: The study; The Primacy of Social Networks in Entrepreneurship: A Study of Social Networking Ability and Innovativeness among University Students in North Central Nigeria, ascertained the relationship between networking ability and innovativeness. To achieve this, a correlational survey of 402 respondents being the students of the five selected universities was conducted. The study used primary data that were generated using structured questionnaires that were administered on the selected respondents. Descriptive statistics, correlation and other diagnostics were used to analyse the data and to test the hypothesis. The study found a strong correlation between networking ability and innovativeness (r=0.336, p{0.05, n=402). Based on the findings of the study, it was recommended that students’ networking ability should be encouraged by the universities, governments, patrons, role models and policy makers, especially now that there is an increased need for entrepreneurship the world over in the quest to curb youth unemployment. It is also suggested that networking ability and activities should be incorporated into the curricular of higher institutions as it has been discovered to facilitate innovativeness among members of NASE (Network of African Student Entrepreneurs).

Abdominal versus vaginal hysterectomy: Appraisal of indications and complications in a Nigerian Federal Medical Centre

Abstract: Aims: To compare hysterectomies performed via the abdominal and vaginal routes in terms of indications and associated complications. Methods: Review of retrospective data on all cases of hysterectomies performed at the Federal Medical Centre Abakaliki over a six-year period (January 2000 to December 2005). Results: There were a total of 62 hysterectomies. Of these, 33 (52.2%) were abdominal hysterectomies while 29 (46. 8%) were vaginal hysterectomies. Hysterectomy was carried out predominantly for grand multiparous women [21 (72.4%) and 21 (63.7%) were abdominal and vaginal hysterectomies respectively]. The mean ages of the patients were 48.8 years and 55.5 years for the abdominal and vaginal operations respectively. The only indication for vaginal hysterectomy in this study was uterovaginal prolapse while uterine fibroid was the commonest indication for abdominal hysterectomy. Complications and duration of hospital stay were more following abdominal hysterectomy. Conclusion: There is need for training and retraining of specialist gynaecologists and trainee residents on procedures of hysterectomies, especially vaginal hysterectomy to expand the indications for the vaginal surgery which is attended with less postoperative morbidity. Key words: indications; complications; route; pyrexia; wound; Abakaliki DOI: 10.3126/njog.v4i1.3328 Nepal Journal of Obstetrics and Gynaecology June-July 2009; 4(1): 25-29

The impacts of oil spill and soil factors on trace metals in sediments (soils) of Abakaliki and Afikpo, Nigeria

Abstract: This paper examines the concern that the concentrations of trace metals in sediments can occur as a result of petroleum exploration, oil spill and their related activities. In response to this concern, soil samples collected from three different study areas of Abakaliki, Apojo and Idembia were spiked with Nigerian crude oil (Forcados) and disused engine oil (Total 250 Premium engine oil) and the concentrations of six metals, Fe, Mn, Zn, Cd, Ni and Pb were analyzed by atomic absorption spectrometer after hot 1:3 HNO3:HCl (aqua regia) digestion. On the basis of field study, the outcome of the study reviewed that the concentrations of the trace metals increased as well as decreased as a result of the oil spill; which revealed the roles played by various soil factors such as the Fe-Mn contents, proportion of clay particles, pH and redox potential. Mn concentrations in all the samples were significantly related to soil pH (r =0.52) over the pH range 6.8-7.8 and Mn showed significantly higher concentrations than all the other metals (24.4112 mg kg-1) which is probably due to variations of redox potential since Mn is the most susceptible element to redox potential changes. The decreased concentrations of Pb and Cd from the results were probably due to the formation of strong organo-Pb and organo-Cd complexes from the soil organic material as well as organic and inorganic ligands from the oils. Fe concentrations showed a significantly negative correlation with Mn (r = -0.33) and it appeared that the higher the concentrations of Mn, the lower the concentrations of Fe. On the basis of statistical analysis, Pearson's correlation coefficient was used to show some degree of relationships between the spiked and unspiked samples in each of the soil sample analyzed. The analysis showed high degree of correlation; r = 0.9783 and r = 0.9805 in the sand and clay samples respectively and low degree of correlation; r = 0.4439 in the dumpsite sample (for the crude oil spiked samples). The crude oil spill had much effect on the concentration of trace metals analyzed in the sand and clay samples but little effect on dumpsite sample probably due to the effects of decomposing organic material on this site which reduced the mobility of these metals on the top soil. The effects of the disused engine oil on the concentration of analyzed trace metals were very high; r = 0.9795 (dumpsite sample), r = 0.9770 (sandy sample) and r = 0.7728 (clay sample). The nutrient analysis showed that accumulated soil nutrients, applied manures and fertilizers; and high atmospheric depositions of NOx and NH3 represent potential sources of N and P in the samples analyzed. Calibration curves were established with five standards for each group of N and P, with concentrations ranging from 0.1-2.0 ppm. The detector response was linear over the range of concentration studied for each group with correlation coefficients > 0.99.

Influence of processing conditions on the optical properties of chemically deposited zinc sulphide (ZnS) thin film

Abstract: In this paper, we present the influence of post deposition annealing and varying concentration on the optical properties of ZnS thin films fabricated by chemical bath deposition (CBD) at 65 °C from chemical baths comprising NH3/SC(NH2)2/ZnSO4 solutions at pH of about 10. The film samples were annealed at temperatures ranging from 373 K–473 K and the concentration of the film samples vary from 0.1 M–0.7 M. Post deposition annealing and concentration played an important role on the optical parameters investigated which includes absorbance, transmittance, reflectance, absorption coefficient, band gap, refractive index and extinction coefficient. The optical parameters were found to vary with post deposition annealing in one direction and concentration of Zn2+ in the reverse direction. For instance, post deposition annealing increases the band gap from 3.65 eV for as-deposited to 3.70 eV, 3.75 eV and 3.85 eV for annealed at 373 K, 423 K and 473 K respectively whereas concentration of Zn2+ decreases the band gap from 3.95 eV at 0.1 M to 3.90 eV, 3.85 eV and 3.80 eV at 0.3 M, 0.5 M and 0.7 M respectively. The fundamental absorption edge of ZnS thin films shifted toward the highest photon energies (blue shift) after annealing and shifted toward the lowest photon energies (red shift) with increasing Zn ions concentration. A linear relation between band gap energy and Urbach energy was found. After annealing, the Urbach energy increases form 3.10 eV to 3.50 eV and decreases from 3.40 eV to 3.10 eV at varying Zn2+ concentration. The property of wide band gap makes ZnS suitable for buffer layer of film solar cells, permitting more light especially the short wavelength light into absorber layer.