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.

Temporal and spatial segregation in an assemblage of Afrotropical subterranean snakes

Abstract: Niche partititioning patterns have not been studied so far in burrowing tropical snakes of the families Typhlopidae and Leptotyphlopidae. In this study, we analyze temporal (= monthly activity) and spatial (= habitat use) niche dimensions in three species of burrowing snakes from the Niger Delta, Nigeria. Null model analyses, using two randomization algorithms and 30 000 Monte Carlo permutations, showed that there was random resource partitioning patterns as for the spatial niche dimension. One species (Rhinotyphlops punctatus) clearly dominated in the sample, and appeared to be more habitat generalist than the others. All three species showed an uneven monthly activity, with peaks occurring by wet season, and statistically significant positive correlations between mean monthly rainfall and number of captured snakes. However, there were significantly negative correlations between mean monthly temperature and number of captured snakes in two of the three species (Rhinotyphlops congestus; Leptotyphlops cfr. sundewalli).

Effect of Drying on the Rehydration Properties of Some Selected Shellfish

Abstract: This study was conducted to evaluate the effect of oven drying on the proximate composition and rehydration characteristics of shellfish. Shellfish studied included rough and smooth periwinkle, oyster and whelk. Proximate composition of the fresh samples were determined. Then dried in the oven to a moisture content of 10% and further rehydrated with distill water in sample water ratio of 1:40 and allowed to equilibrate. Proximate composition of the fresh shellfish showed that moisture content ranged from 82.38 to 69.24% with fresh smooth periwinkle having the highest moisture value while whelk had the lowest. The results also showed that whelk had the highest values for ash (2.92%), crude protein (18.83%) and crude fibre (3.71%) when compared to other samples. On rehydration, a moisture loss of 11.75%, 13.28%, 19.24% and 22.04% were observed for rough periwinkle, smooth periwinkle, oyster and whelk, respectively. The results for rehydration indices revealed that dehydration ratio was significantly (p<0.05) high for whelk (1.44), followed by oyster (1.29), rough periwinkle (1.23) and lastly, smooth periwinkle 1.20. Rehydration ratio of whelk (1.47) was equally significantly higher, followed by oyster (1.33) and the least were rough and smooth Original Research Article Kiin-Kabari and Obasi; AFSJ, 14(1): 42-48, 2020; Article no.AFSJ.53602 43 periwinkle (1.17). For coefficient of reconstitution, oyster recorded the highest value of 1.03, followed by whelk 1.02, rough periwinkle 0.95 and smooth periwinkle 0.98. Rate of water imbibition revealed a sharp increase in the water content of smooth periwinkle up to 240 min and thereafter, it slowed down until equilibrium was reached. In terms of rough periwinkle, oyster and whelk; water imbibition took place with rehydration time up to 300 min, 210 min and 270 min, respectively, thereafter they slowed down. The results have demonstrated that the rate in which oven drying affect the physical and nutritional qualities of shellfish differs.

Effects of Cashless Economy Policy on National Development: Evidence from Nigeria

Abstract: Prior to this time, Nigeria economy was largely described as cash and paper based economy with significant proportion of the narrow money stock in form of currency outside the banking system In a bid to drive national development, modernization of payment system and to limit the practice of the use of cash in business transaction in line with the global economy, the Central Bank of Nigeria introduced the cashless policy in January 2012 as a pilot scheme in Lagos Since the declaration of cashless policy, there has been controversy in the academia with respect to the effects on national development some scholars believes it benefits outweigh it challenges and vice versa Based on this therefore, this study seeks to assess the effects of cashless economy policy on national development in Nigeria The study reveals cashless policy has promoted effective and improved monetary policy, efficient and fast payment system, job creations and increased technological infrastructures The study suggests that government should promote efforts that will encourage cashless policy in Nigeria

Modeling Bank Capital Adequacy Dynamics and Liquidity Risk Management, Empirical Evidence from the Nigeria Commercial Banks

Abstract: This study examines the effects of Capital adequacy on liquidity risk management practices in Nigeria. The secondary time series data were obtained from the annual reports of the fifteen (15) quoted commercial banks in Nigeria as compiled from the Nigeria Stock Exchange Fact book for the period 1989 to 2015. The independent variables capital adequacy are categorised under Tier I, Tier II to total risk assets, capital conservation buffer (CCB), Minimum total capital (MTC) and counter-cyclical Buffer (CCyB). The dependent variable Liquidity risk was modelled with the five variants of capital adequacy measures. The multivariate regression equation were specified and results obtained based on E-views version 9.0. The OLS and cointegration result shows existence of a short run and long run equilibrium relationship between LIQR and capital adequacy (CAR). The Unit root test shows that the variables were stationary at level and first difference i.e. 1(0) and 1(1). The VAR test indicates that fluctuations in liquidity risk are significantly influenced by capital adequacy measures. The granger-causality test shows a unidirectional link between liquidity risk and capital adequacy. The impulse response function (IRF) shows that liquidity risk responded negatively to capital adequacy measures. The variance decomposition results indicates that LIQR accounted for 78.73% of own shocks at the short run, while at the long run accounted for 14.76%, the rest of 86.34% were distributed among the capital adequacy measures with CCB accounted for the highest. This study concludes that transition to Basel III will further mitigate the concentration of liquidity risk and avert systematic failure in the Nigeria banking system. It is recommended that risk management should be a matter policy focus and priority among regulators and operators in Nigeria banking industry.