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Articles by Nwogo Ajuka Obasi
Total Records ( 3 ) for Nwogo Ajuka Obasi
  Kalu Mong Kalu , Nwogo Ajuka Obasi , Florence Onyemachi Nduka , Victor Oluoha Nwaugo and Ifeanyi Augustine Onuabuchi
  In this study, abundance of nocturnal, endophagous and anthropophagous adult Anopheles species in relation to human malaria transmission in an urban setting (Umuahia) and a rural community (Uturu) in Abia State, Southeastern Nigeria, were comparatively investigated for a period of 24 months (January, 2009-December, 2010) using “night indoor human-balt insecticide spray sheet catches” and abundance of human malaria parasites vectors was also investigated. Peripheral blood smears were used to determine prevalence of malaria parasitaemia among inhabitants of the study communities. The results indicated that a total of 501 adult female Anopheles mosquitoes were caught: 171 (34.13%) comprising A. gambiae and A. funestus in Umuahia urban and 330 (65.87%) comprising A. gambiae, A. funestus and A. moucheti in Uturu community. The results also showed that A. moucheti was not found in Umuahia urban setting. Nocturnal, endophagous and anthropophilic Anopheles species were significantly more abundant in the rural area (Uturu) than the urban (Umuahia) at p<0.05. Prevalence rates of malaria parasitaemia between the two communities did not differ statistically at p<0.05: n = 231 (74.52%) in Umuahia urban and n = 230 (74.19%) in Uturu. Both urban and rural areas were coendemic for Plasmodium vivax and Plasmodium malariae. There was no correlation between malaria vectors abundance and transmission at both the urban and rural setting of the study areas. Proper implementation of the use of impregnated bed net in both urban and rural areas for the control of malaria should be advocated.
  Nwogo Ajuka Obasi , Stella Eberechukwu Obasi , Getrude Obianuju Aloh and Emmanuel Okewe Nnachi
  Background and Objective: In Nigeria, explosion in population growth and technological advancement has led to increase in the generation of high quantity of industrial and domestic solid wastes. These solid wastes are poorly managed in rural and urban communities and in most cases are indiscriminately dumped at arable farm lands where they constitute environmental pollution. The solid wastes undergo decompositions and are burnt in open air during dry seasons. The composts formed are often used by dwellers as manures for cultivation of edible plants. This study investigated the uptake of heavy metals by edible plants cultivated in the vicinity of selected dumpsites in Amata-Akpoha, Afikpo North, Ebonyi State, Nigeria to extrapolate the associated ecological and health risks. Materials and Methods: The soil and plant samples were obtained from farmlands in the vicinity of Ezi Mba, Amaozara and Evoekpiri dumpsites in Akpoha and a nearby farm land at Edaka where there was no dumping of waste in the vicinity (control site). The samples were processed and analyzed using standard protocols. Data obtained were analyzed using one way analysis of variance (ANOVA) by SPSS version 9.2 (Inc., Chicago, USA) and significant differences were established at p<0.05 using Duncan multiple range test. Results: The results obtained showed that the total extractable metals varied significantly (p<0.05) from one dumpsite to another and were generally higher in the dumpsites compared to control site. Results of speciation indicated that all the metals studied had more than 65% non-residual fractions except Cu. The mean order of mobility and bioavailability of the metals were: Fe>Zn>Mn>Cd>Pb>Cr>Ni>Cu in the sites. Total mean metal concentration in Amaranthus hybridus, Telfairia occidentalis and Talinum triangulare were significantly higher (p<0.05) in the dumpsites samples compared to control site. The different soil-plants transfer indices varied and indicated that the plants have varied potentials for phytoextraction and phytostabilization of the metals. Conclusion: The high level of metals in the waste soils indicated anthropogenic inputs and the soil-plants transfer coefficients for the edible plants indicated increased ecological and health risks implications. Hence, there is urgent need for enacting and enforcing policies on regulatory standards.
  Kalu Mong Kalu , Nwogo Ajuka Obasi , Florence Onyemachi Nduka and Glory Otuchristian
  Malaria is an infectious disease which is as old as man and as such demands a thorough put investigation for effective prevention. In this study, a comparative study of the prevalence of malaria in Aba and Umuahia urban settings of Abia state, Nigeria were investigated in order to proffer possible preventive/control measures. A total of 500 individuals (250 in each urban setting) were examined for malaria parasites in blood specimens using standard methods. The results showed that a total number 402 (80.40%) were positive for malaria parasitaemia. In Aba, 216 (86.40%) individuals were positive while in Umuahia, 186 (74.40%) individuals were positive for malaria parasitaemia and the difference in the prevalence between these urban areas were statistically significant. Individuals of age group 21-30 years had the highest rate of infection (92.31%) in Aba while in Umuahia highest infection rate of 90.00% was observed in the age group 11-20 years. Traders were mostly infected in both urban areas with 94.34% in Aba and 93.75% in Umuahia, however, the difference was not statistically significant (p>0.05). Females in both urban areas were more infected than males with (91.20%) in Aba and 80.80% in Umuahia, the difference being statistically significant (p<0.05). Plasmodium falciparum, Plasmodium vivax and Plasmodium malariae occurred in both urban areas with Plasmodium falciparum predominating Aba and Umuahia urban were observed to be endemic for malaria.
 
 
 
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