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Scientific Research Journal

Scirj Volume I, Issue IV, November 2013 Edition
ISSN: 2201-2796


GEOLOGICAL AND GEOELECTRICAL CHARACTERIZATION OF THE UKOMI DIORITE DEPOSIT LOKPAUKWU, UMUCHIEZE AREA, SOUTHEASTERN NIGERIA: IMPLICATIONS FOR ESTABLISHING A QUARRY SITE
Ibe Kalu K., Ibeneme Sabinus I., Selemo Alex O., Nwagbara Johnbosco O., Ikoro Diugo O., Obioha Young E., Ubechu Bridget O., Chinemelu Ekeoma S. and Onwuka Chibuike O.

Abstract: Geological and Geoelectrical studies have been carried out at a potential quarry site in UkomiLokpaukwu, Umuchieze area of Southeastern Nigeria. The surveys aimed at evaluating the geological parameters and establishing the surface and downward trends of a suspected quarry rock material, through resistivity variation characteristics, prior to the location of a rock quarry as well as estimating the overburden thickness. Geological study revealed that the diorite has a mean density of 2.85 x103 kgm-3. Petrographically, laths of plagiosclase / Labradorite were set in a groundmass of smaller laths, iron oxide, olivine and pyrite. This texture is seen to be ophitic, similar to that of dolerite (diabase).The symmetrical Schlumberger configuration was used for the VES data acquisition with a maximum half current electrode spacing (AB/2) of 95m ensuring down to 63m of depth probe and potential electrode spacing of 28m. A total of twenty Six (26) VES points were established in the study area. Six (6) geoelectric sections (AA1, BB1, CC1, DD1, EE1, and FF1) were taken along NW-SE profiles (across main strike of rock mass). The diorite along profile AA1 is buried below 6 to 9m at VES 3 and 4 respectively. This indicates that the event at VES 25 and 26 continues at VES 4 and 3 deeply buried at these two locations. Along profiles BB1 and CC1, the event in B1 end is the same as the event in C end, pinching out toward BB1. The diorite continued to VES 17 and 9 points. Wherever the shale occurs, resistivity values are low (1.9 – 120 Ohm-m). Along these profiles the diorite is buried between 1.0 to 3m. Along profiles DD1 and EE1, the diorite is buried at between 2.5 and 4m at VES 20, 21, 22 and 23, having a conical structure and shown in EE1 profile with enhanced resistivity of 25-570 Ohm-m. Along profile FF1 the diorite is deeply buried at VES 18 and 19 and not encountered at VES 16 and 15.
Read Full Paper Reference this paper Page 1-11


Bio – efficacy of Aqueous Plant Extracts and Cyperdicot on Insect Pests Infestation, Growth and Yield of Sweet Pepper (Capsicum annum L.) in the Dry Savanna of Nigeria
DEGRI M.M.

Abstract: Field experiments were conducted at the Faculty of Agriculture orchard farm, University of Maiduguri during 2011 and 2012 cropping seasons. The aim was to compare the efficacy of neem (Azaradichta indica) seed oil, garlic (Allium sativa) bulb and bitter leaf (Vernonia amygdalina) aqueous plant extracts with the synthetic insecticide cyperdicot 400 EC in the control of aphids on sweet pepper (Capsicum annum L.). The treatments consisted of three aqueous plant extracts at 50/0 w/v and cyperdicot 400 EC replicated four times including control in a randomized complete block design .Each plot measured 4.0 m by 3.0 m with 1.5 m inter-spaced per adjacent plot. Results of the study showed that neem seed oil and garlic treatments were effective against aphids as the synthetic insecticides cyperdicot in controlling sweet pepper aphids (Aphis gossypii). Cyperdicot 400 EC significantly (P≤0.05) reduced aphids infestation followed closely by neem seed oil and garlic bulb. Sweet pepper plant heights were significantly higher in neem seed oil and garlic extracts treatments than bitter leaf treated plants. Fruit number and fruit yield were also improved more than bitter leaf treated plots and control. Among the three aqueous plant extracts, neem seed oil and garlic extracts proved effective in controlling the pest, therefore they are recommended for controlling sweet pepper aphids due to their low cost, potency and efficacy.
Read Full Paper Reference this paper Page 12-16


Quantile Regression Approach to Determine The Indicator of Health Status
Ferra Yanuar

Abstract: The aim of this study are to demonstrate the application of the quantile regression technique to determine the indicators of the health status and to identify the characteristics of healthy and unhealthy individual. Quantile regression approach was applied to 530 health survey data of respondents from Hulu Langat, Malaysia. The data survey informs about some indicator variables that relate to socio-demographic status, lifestyle, mental health and value of health status of the respondents. It is assumed that employment level, education level, age-group, smoking habits, physical exercise, average working and sleeping in a day, stress level, happiness in life and social problems that she/he has have effect to the health status of related individual. All ten indicator variables are in ordered categorical type of data and health status value as the response is in continuous type. This study found that at the middle quantile, employment level, education level, age-group and smoking habits are significant indicators of health status. This study also identify the characteristics of healthy individuals who are at the upper quartile level of health are individuals working, educated individuals, young and non-smoking. Meanwhile, the characteristics of unhealthy individuals who are at the lower quartile level of health are highly educated and older than 30 years old.
Read Full Paper Reference this paper Page 17-23


Simultaneous Quadruple Integral Equations Involving H-Functions
KULDEEP NARAIN

Abstract: In this Paper we have obtained the solution of simultaneous quadruple integral equations involving H-functions. The method followed is that of fractional integration. The given quadruple integral equations have been transformed by the application of fractional integration due to Saxena, in to three others with a common kernel. The common kernel comes out to be a symmetrical Fourier kernel given earlier by Fox and the formal solution is then readily obtained. Some interesting particular cases have been derived.
Read Full Paper Reference this paper Page 24-30


Simultaneous Quadruple Integral Equations Involving G(xn)
KULDEEP NARAIN

Abstract: Integral and Series equations are very useful in the theory of elasticity, elastostatics, diffraction theory and acoustics. Particularly these equations are very much useful in finding the solution of crack problems of fracture mechanics .In the present section fractional integral operators are used to obtain a formal solution of simultaneous quadruple Integral equations involving Meijer’s G-function of n-variables i.e. as kernel by reducing them to one having a common kernel.
Read Full Paper Reference this paper Page 31-42


Comparing ensembles of decision trees and neural networks for one-day-ahead streamflow prediction
Onur KARAKURT, Ms.C., Halil Ibrahim ERDAL, Ph.D., Ersin NAMLI, Ph.D., Hacer YUMURTACI-AYDOGMUS, Ph.D.

Abstract: Ensemble learning methods have received remarkable attention in the recent years and led to considerable advancement in the performance of the regression and classification problems. Bagging and boosting are among the most popular ensemble learning techniques proposed to reduce the prediction error of learning machines. In this study, bagging and gradient boosting algorithms are incorporated into the model creation process for daily streamflow prediction. This paper compares two tree-based ensembles (bagged regression trees BRT & gradient boosted regression trees GBRT) and two artificial neural networks ensembles (bagged artificial neural networks BANN & gradient boosted artificial neural networks GBANN). Proposed ensembles are benchmarked to a conventional ANN (multilayer perceptron MLP). Coefficient of determination, mean absolute error and the root mean squared error measures are used for prediction performance evaluation. The results obtained in this study indicate that ensemble learning models yield better prediction accuracy than a conventional ANN model. Moreover, ANN ensembles are superior to tree-based ensembles.
Read Full Paper Reference this paper Page 43-55


SPECTROPHOTOMETRIC DETERMINATION OF DISSOCIATION QUOTIENTS OF TRIAZENE – N1 – OXIDES AND THE EFFECT OF SUBSTITUENTS ON pKa VALUES
ASHOK KUMAR , GALAL M ZAIAD

Abstract: Determination of dissociation quotients of thirty two substituted triazene-N1-oxides has been done spectrophotometrically. The effect of different substituents present at both the ends of triazene-N1-oxide moiety upon their pKa values has been studied and discussed. A comparision of pKa values of N3- (aryl/ substituted aryl ) – N1- alkyl-triazene-N1-oxides with N3-(aryl/substituted aryl)-N1-(aryl/substituted aryl)- triazene-N1-oxides reveals that the presence of one more aromatic ring at N1-end in the latter type of compounds decreases the pKa values due to the – I effect of the aryl ring.
Read Full Paper Reference this paper Page 56-59


IMPLEMENTATION OF PRIMARY HEALTH CARE SERVICE IN AKWA IBOM STATE, NIGERIA: AN APPRAISAL
Enefiok E. Ibok Ph.D, Ekan D. Akpan

Abstract: Primary health care recognises that health care is not a short-lived intervention, but an ongoing process of improving people’s lives and alleviating the underlying socioeconomic conditions that contribute to poor health. The principles link health and development, advocating political intervention rather than passive acceptance of economic conditions. This therefore, necessitated Akwa Ibom State health policy of supporting healthy living for sound body and mind as well as combating of diseases through the operation of an accessible, affordable, efficient, and integrated health care delivery system based on primary health care services. This work therefore appraised government effort in implementing its primary health care delivery system for a healthy living. The study adopted a historical as well as descriptive approach in data collection. The study therefore revealed that the government has made appreciable effort in building and renovating of health centres across the state. Also, government programme of free medical care to children and pregnant women has helped to reduced infant and maternal death in the state. Despite these, the study further revealed that the implementation of PHC in the state has been overwhelmed by many challenges such as inadequate funding, lack of capacity by implementing agency which is local government. Above all, lack of political will occasioned by bad government. Based on this, the study recommended that the state government should be more committed to the programme by allocating more funds in its annual budget to enhance effective implementation considering its strategic importance. Also, the state government should be committed to ensuring good governance with proper accountability and transparency.
Read Full Paper Reference this paper Page 60-63


A COMPARATIVE ANALYSIS OF EVOLUTION AND STRUCTURE OF LOCAL GOVERNMENT SYSTEMS IN NIGERIA AND LIBERIA
Akpanim Ntekim Ekpe, Martha A. Ekpe, Dr. Ekong E. Daniel

Abstract: The Comparison of the evolution and Structure of Local Government Systems in Nigeria and Liberia offers fascinating insight into the study of comparative local government administrations in the world in general, and Africa in particular. Some of the structural and apparent problems facing local government system in most developing countries are structural dysfunctionality, and absence of acceptable and ideal structure, functions, and responsibilities that will make them responsive to the yearnings and aspirations of the rural populace. Besides, local governments in developing countries have not incorporated the criteria of locale, democratic/participatory and efficiencywhich Jones (1947), former Secretary to States for African colonies enunciated in their approaches to local government governance. The paper adopted descriptive, historical and comparative analysis. Secondary data were sourced from books, journals and official publications.The paper advocatesthe combination of federal and unitary elements inherent in their local political systems to restructure their respective local government systems. This would assure the realization of the desired roles of the local government system in the two countries.
Read Full Paper Reference this paper Page 64-70


THE IMPORTANCE OF AUDIT COMMITTEE IN BOARD STRUCTURE IN MALAYSIA
Mahboubeh Bahreini

Abstract: Development of audit committee and the effects of this section on the review of performance and accuracy of financial statements and accounting systems around the world and by referring to studies on the linkage between audit committee and performance, there would be significant relations between them that help the organizations to improve profitability. In this part of corporate governance, many countries such as Malaysia have set up the regulation of Sarbanes-Oxly-Act after 2002 which consists of new rules and regulations on Audit committee to increase authority and responsibility of this committee. It has helped Malaysia to recover from the financial crisis in Asia. This recovery has caused investors to have more confidence and offer investments in Malaysia. A good structure and good management of corporate governance can provide a secure platform for investors invest more in Malaysia.
Read Full Paper Reference this paper Page 71-75



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