Browsing by Author "Ahmed, I."

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    Background Gamma Radiation Measurement Of Market Places In Keffi, Nasarawa State, Nigeria.
    (Department Of Library And Information Science, Faculty Of Education, Nasarawa State University, Keffi., 2021-06-05) Sarki, M.U.; Ma'aji, U.M.; Iliya, M.M.; Isah, S.H.; Wada, H.M.; Ahmed, I.
    In this study, the assessement of background gamma radiation measurement of market places in Keffi Nasarawa State, Nigeria has been conducted. An in-situ measurement of background gamma exposure rate count per minute for twenty locations from two market (ten measurement each) was done using a well calibrated portable halogen-quenched Geiger Muller (GM) detector (Inspector alert nuclear radiation monitor SN: 3544) at an elevation of 1.0 m above ground level with a Global Positioning System (GPS) for geographical locations. Using an established radiological relations, the radiological health hazards were evaluated using the measured background gamma exposure rates. The values obtained were compared with recommended limits set by ICRP and UNSCEAR to ascertain the radiological hazard status of the environment. The mean values of the background gamma exposure levels (0.0869 mRh'1), absorbed dose rates (756.03 nGyh'1) and excess lifetime cancer risk (3.245x 1 O'3) are higher than their recommended safe limits of 0.013 mRh'1, 84.0 nGyh'1, 0.29x10’3 respectively as recommended by UNSCEAR and ICRP. The mean Annual Effective Dose Equivalent (AEDE) (0.927 raSvy'1) is lower than the recommended permissible limits of 1.00 mSvy'1 for general public exposure and also the effective doses to different body f organs are all below the recommended limits of 1.0 mSvy'1. Generally, the study shows that market places • in Keffi, Nasarawa State is relatively safe radiologically with little contamination which could be attributed C to the to human activity and partly due to geological formation of the market places. However, the contamination will not pose any immediate radiological health effect on resident of the area but there is tendency for long-term health hazards in the future such as cancer due to doses accumulated.
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    Phillips Curve Representation on Inflation in Nigeria: Evidence from Vector Error Correction Model.
    (Department of Statistics, Nasarawa Sate University Keffi., 2017-01-05) Adenomon, Monday Osagie; Oduwole, H.K.; Ahmed, I.
    The Phillips curve represents the relationship between the rate of inflation and the unemployment rate. This paper investigated the interrelationship between inflation rate and unemployment rate in Nigeria from 1970 to 2014. Annual data for these variables were collected from secondary sources. The ADF test revealed that inflation and unemployment rates are stationary at first difference while the Johansen cointegration test indicated one (1) cointegrating equation at 5% level of significance. The VECM model at lag 2 was used to investigate the short and long run interrelationship between inflation and unemployment rates in Nigeria. The result revealed a positive long run relationship between inflation and unemployment rate in Nigeria which negates the Phillip curve while the equilibrium error correction coefficient (ECM) estimate of -0.795 is highly significant with the correct sign. This implies a high speed of adjustment to equilibrium after shock. The Granger causality test revealed that inflation is not influenced by unemployment in the short run. This paper therefore recommends that the government should formulate economic policy to reduce inflation rate and unemployment in the long run.