Teletraffic Modeling of Cdma Systems

This paper presents teletraffic modeling of Code Division Multiple Access (CDMA) systems that enabled the analysis of such systems capacity. Analytical tools aided by software model that assisted in analysis of the system performance, capacity estimation, dimensioning and design of CDMA networks were achieved. This work, therefore, focused on modeling telephone traffic for analysis of CDMA cellular network capacity. We developed an analytical expression for blocking probability and consequently that for the determination and analysis of the capacity of CDMA networks. The analyses of obtained results showed how interference determined the capacity of CDMA networks and therefore proved that the capacity was not hard limited, but depended on predetermined quality of service for the network. Also, the result showed how the capacity of the network, in terms of number of subscribers, can be estimated for CDMA networks. Graphical results generated from the blocking model showed the effect of variations in interference parameters on CDMA capacity. The Erlang capacity from the model was adapted into Erlang B formula to estimate capacity in terms of channels, and the number of subscribers a typical CDMA sector could accommodate

Growth performance of Clarias gariepinus fed compounded rations and maggots

ABSTRAC

Perception of Agricultural Extension Agents on the Privatization of Service Delivery towards the Rural Fish Farmers in Ondo State, Nigeria

Abstract The withdrawal of the World Bank sponsorship of agricultural develop ment programmes (ADP) in Nigeria and the decline in both the funding and overall organization and administration of extension has posed a great challenge as regards effective means of funding extension delivery, privatization of extension service delivery has been considered lately as the only option. The study therefore examined the perception of agricultural extension agents on the privatization of services delivery towards the fish farmers. The study was carried out in Ondo State, Nigeria. Samp le size of 92 respondents (extension agents) from the Ondo State Agricultural Develop ment Project (ODSADP) was used in the study. Data for the study were collected through the use of structured questionnaire. Data were analy zed using frequency counts, percentage, mean score, and Ch i-square. Most of the respondents (66.7%) were male, mean age of 45.1 years, 88.5% were married and 41.7% had Ph.D as the highest educational qualification, while the average working experience of the respondents was10 years. Also, 64.6% of the respondents agreed that the privatization can ensure fish farmers have greater access to fishing inputs, 59.4% agreed that privatization will improve efficiency and effect iveness of extension agents while 57.3% agreed that privatization will improve employ ment opportunities for trained extension personnel. Personal characteristics of extension agents and their perception on privatization of service delivery towards rural fish farmers are not significant (P >0.05). The study concludes that issues on privatization of extension should therefore be given adequate consideration by policy makers, stakeholders in extension service delivery and the government before final decision is taken on whether or not to privatize agricultural extension services in the State

RELEVANCE AND BENEFITS OF AGRICULTURAL YOUTH EMPOWERMENT PROGRAMME TO PARTICIPATING YOUTH IN OSUN STATE, NIGERIA

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Roles of artisanal fishers associations in Ilaje Local Government Area, Ondo State, Nigeria

A study was conducted to determine the artisanal fishers association in Ilaje Local Government area, Ondo State, Nigeria. Multistaged random sampling technique was used to select three hundred and twenty four artisanal fishers‟ association members from the study area. Structured questionnaire and in-depth guided interview were used as instrument for data collection. Data collected were analyzed through descriptive statistic. The study showed that 69.8% had association memberships of more than fifty. Outboard engine 26.9% and boat 21.6% were enjoyed at subsidized rates while only 8.3% each indicated training on outboard engine repair and gear construction and mending. It is recommended that Government at various levels and non- Governmental organizations should assist fishermen associations in the procurement of fishing inputs and organization of different trainings on fishing to boost the local supply from artisanal fisheries.Keywords: Association, artisanal, servicing facilities, membership, trainin

Diagnosis of Taenia saginata cysticercosis by immunohistochemical test on formalin-fixed and paraffin-embedded bovine lesions

A new method of diagnosing cysticercus or larval stage of the human tapeworm, Taenia saginata, also known as Cysticercus bovis, in formalin-fixed bovine tissue was developed using a monoclonal antibody to T. saginata and avidin-biotin complex immunohistochemistry. Grossly recognizable viable and degenerate cysts were identifiable after immunohistochemical staining and could be differentiated from Sarcocystis, Actinobacillus, or non-cyst, normal bovine structures. Thenew test should permit laboratory confirmation of suspected T. saginata cysticercus lesions