Open Access Original Research Article

Corporate Governance Dimensions and Organizational Performance: A Pragmatic Investigation from Nigerian Banks

Ogunlade Olabamiji

Asian Journal of Advanced Research and Reports, Page 1-7
DOI: 10.9734/ajarr/2019/v7i230168

This study seeks to examine the impact of corporate governance dimensions on organization Performance with specific reference to the Nigerian Banking Industry. Data were sourced via the audited financial statements of the selected bank for a period of five years between 2013 and 2018. Data analysis was performed with the aid of multiple regression analysis and Pearson Product Moment Correlation Coefficient. The result establishes that positive relationship exists between Board independence and organizational performance measured by earnings per share and return on equity. The result further affirms that Board size and Chief executive duality have an inverse effect on organizational performance measured by earnings per share and return on equity. The implication of this that the abolition of Chief executive duality and small Board size would save guide the shareholder interest and enhances effective monitoring and control. Thus, it will attract both foreign and local investors to invest in the banking sector in Nigeria.

Open Access Original Research Article

In vivo Assessment of Antidiabetic Potential and Mapping of Pharmacological Properties of Ethanolic Extract of Leaves of Coccinia grandis on Alloxan-induced Diabetic Rats

Zahirul Islam, Md. Rafat Tahsin, Ahmad Ullah Faisal, Tanzia Islam Tithi, Tasnova Tasnim Nova, Tahmina Sharif Nila, Md. Zobayer Hossain Gorapi, Faisal Ahmed Nadvi, Tasneem Nayla Mridula, Abu Asad Choudhury, Jakir Ahmed Chowdhury, Shaila Kabir, Md. Shah Amran

Asian Journal of Advanced Research and Reports, Page 1-9
DOI: 10.9734/ajarr/2019/v7i230169

Diabetes is a metabolic disease and plant derived products are used to combat this deadly disease. Plant is a diverse source of numerous therapeutic compounds which can be used to ameliorate diabetes. Leaves of Coccinia grandis (L.) (Family: Cucurbitaceae) is one of the leafy vegetable that is used for this purpose traditionally. It has been used against diabetes for a very long time. Our aims were to identify the hypoglycemic effect of extract of leaves of Coccinia grandis as well as to determine its safety profile so that we could use the plant material to improve the diabetic condition. Diabetes was induced in rats by intraperitoneal injection of alloxan at a dose of 150 mg/Kg bodyweight and ethanolic extract of leaves of Coccinia grandis was fed to the rats at a dose of 750 mg/kg. We measured blood glucose level, and safety profile by measuring SGOT, SGPT and creatinine level on diabetic and non-diabetic rats before and after administration of the extract. After measuring blood glucose level, it was found that the hypoglycemic efficacy was comparable to that of metformin (p> 0.05) which was given at a dose of 500 mg/kg. Safety profile were investigated by checking SGOT, SGPT and creatinine level. It was seen that both metformin and leaf extract of Coccinia grandis improved the pathological condition induced by diabetes. Furthermore, in healthy individual rats both metformin and leaf extract of Coccinia grandis did not significantly alter the normal physiological state. It might, therefore, be inferred that the extract of leaves of Coccinia grandis could be used as a good alternative therapy to treat diabetes.

Open Access Original Research Article

Summation Formulas for Generalized Tetranacci Numbers

Yüksel Soykan

Asian Journal of Advanced Research and Reports, Page 1-12
DOI: 10.9734/ajarr/2019/v7i230170

In this paper, closed forms of the summation formulas for generalized Tetranacci numbers are presented. Then, some previous results are recovered as particular cases of the present results. As special cases, we give summation formulas of Tetranacci, Tetranacci-Lucas, fourth order Pell, fourth order Pell-Lucas, fourth order Jacobsthal, fourth order Jacobsthal-Lucas numbers.

Open Access Original Research Article

Modified Ridge Regression Estimator with the Application of Peanut Production in Pakistan

Asifa Mubeen, Nasir Jamal, Muhammad Hanif, Usman Shahzad

Asian Journal of Advanced Research and Reports, Page 1-8
DOI: 10.9734/ajarr/2019/v7i230172

The main objective of the present study was to develop a new ridge regression estimator and fit the ridge regression model to the peanut production data of Pakistan. Peanut production data has been used to analyze the results. The data has been taken peanut production and growth rate of Pakistan. The mean square error of the proposed estimator is compared with some existing ridge regression estimators. In this study, we proposed a ridge regression estimator. The properties of proposed estimators are also discussed. The real data set of peanut production is used for assuming the performance of proposed and existing estimators. Numerical results of real data set show that proposed ridge regression estimator provides best results as compare to reviewed ones.

Open Access Original Research Article

Temporal Variability of Particulate Matter in Urban Area of Port Harcourt, Nigeria

Christopher U. Onuorah, T. G. Leton, O. L. Y. Momoh

Asian Journal of Advanced Research and Reports, Page 1-7
DOI: 10.9734/ajarr/2019/v7i230175

Particulate matter pollution poses serious health concern to public health in Nigeria especially at elevated concentration. Its size is very vital in determination of its long stay in the atmosphere as well as its deposition in human respiratory system. This study analyzes the temporal variation of particulate matter (PM10 and PM2.5) concentrations and its ratio in urban area of Port Harcourt. The study was carried out in Woji, area of Port Harcourt, Nigeria, from May to December 2018 using Aerocet 531 particulate monitor while meteorological variables were monitored via Misol wireless weather station mounted 10 m above the ground level. The highest particle pollution occurred in the month of December with an average daily PM2.5 concentration of 58.8 μgm-3 and PM10 concentration of 164.5 μgm-3, which exceeds WHO and USEPA daily threshold. These particle pollution exceedances recorded the dry season month of December was due to high atmospheric stability with dry dusty north east trade wind associated with harmattan. Also,  Particulate matter concentration are usually lower during the weekends than weekdays with high PM level occurring at night from 8:00 PM to 9:00 AM in the morning with the peak at 8.00 AM. This shows that the weekdays experienced elevated PM level than weekend as a result of high industrial, commercial and traffic activities emitting particles within the weekdays. Also the average PM2.5/PM10 ratio for wet and dry season was 0.3 respectively. This shows that the town is town is predominated by coarse particle.