EFFECTS OF SETT SIZE ON THE FIELD ESTABLISHMENT, GROWTH FRESH TUBER YIELD AND YIELD RELATED ATTRIBUTES OF WHITE YAM (Dioseora rotundata)

Category : JOURNAL OF SCIENCE AND MULTIDISCIPLINARY RESEARCH, VOLUME 10, NUMBER 2, 2018

Ogboi E. and Odeh, H.O

Agricultural Technology Department,

Delta State Polytechnic, Ozoro.

Email: ogboied@gmail.com

Abstract

The work to investigate the effect of sett sizes on the field performance of white yam (Dioseorea rotundata) was done in Delta State Polytechnic Demonstration farm, Ozoro between March, 2016 and September 2016. Sett sizes classified into six groups/classes (2.0-5.0g), (5.01-10.0g), (10.01-20.0g), (2.01-30.0g), (30.1-40.0g) and (40.01-50.0g) were used in the experiment. The result indicates that no significant difference exist in average tuber size among three different classes: (2-5.0g), (5.01-10.0g) and (20.01-30.0g). thus it is recommended that sett class of 2.0-5.0grams should be used for multiply seed yam production technology under adequate cultural management.

Keywords: Sett, Class, Adequate, Management.

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PHYTOCHEMICAL SCREENING AND SCAVENGING EFFECTIVENESS OF THE LEAF OF TERMINALIACATAPPALINN

Category : JOURNAL OF SCIENCE AND MULTIDISCIPLINARY RESEARCH, VOLUME 10, NUMBER 2, 2018

1Umar Dan Azumi,  1Tijjani M.AMohammed G.T.2Braimah H.Y.

1Department of Chemistry, University of Maiduguri, Maiduguri, Borno State, Nigeria.

2Department of Pharmacuetical Chemistry, University of Maiduguri.

Email: mustaphatijjani22@yahoo.com

Abstract

Fresh leaf of Terminaliacatappa was collected from Bolori ward Maiduguri Borno state and it was identified by Professor S. S. Sunusi Department of Biological Science Faculty of Science, University of Maiduguri. One thousand grammes (1000g) of the powdered leaf of Terminaliacatappa was extracted with methanol using cold infusion (maceration) method. Eighty three point eight two grammes (83.82g) of the dark green in colour gummy in texture of methanol crude extract was obtained, which was further partitioned with n-hexane, ethyl acetate, n-butanol and water to give n-hexane portion (1.638% W/W), dark green in colour, oily in texture, ethyl acetate portion (0.075% W/W), black in colour, gummy in texture, n-butanol portion (0.777% W/W), brown in colour, oily in texture and finally aqueous portion (2.997% W/W), dark brown in colour, powdered in texture. Preliminary phytochemical screening of the methanol crude extract and partitioned portions revealed the presence of some secondary metabolites such as cardiac glycoside, flavonoids, saponins, terpenoids, tannins and alkaloid. The antioxidant activity was carried out on the methanol extract and partitioned portions. The methanol extract showed the percentage inhibitions of 98.25 at 10ug/ml 97.40 at 20µg/ml 96.94 at 30µg/ml 96.63 at 40µg/ml and 97.10 at 50µg/ml, n-butanol portion showed the percentage inhibitions of 95.75 at 10ug/ml 96.40 at 20µg/ml 96.15 at 30µg/ml 96.40 at 40µg/ml and 96.15 at 50µg/ml, n-hexane portion showed the percentage inhibitions of 95.50 at 10ug/ml 95.65 at 20µg/ml 95.80 at 30µg/ml 95.75 at 40µg/ml and 95.75 at 50µg/ml, ethyl acetate portion showed the percentage inhibitions of 78.35 at 10ug/ml 87.65 at 20µg/ml 95.00 at 30µg/ml 94.75 at 40µg/ml and 94.70 at 50µg/ml. Finally aqueous portion showed the percentage inhibitions of 94.40 at 10ug/ml 95.10 at 20µg/ml 96.00 at 30µg/ml 95.50 at 40µg/ml and 96.05 at 50µg/ml. The methanol extract showed promising antioxidant activities at various concentrations when compared with the partitioned portions.

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CHARACTERIZATION OF TIGER NUT OIL EXTRACTED USING MECHANICAL AND CHEMICAL METHODS

Category : JOURNAL OF SCIENCE AND MULTIDISCIPLINARY RESEARCH, VOLUME 10, NUMBER 2, 2018

1Awulu, J.O.  2Omale, P.A. and 3Omadachi, J.O.

Department of Agricultural and Environmental Engineering,

University of Agriculture Makurdi, Benue State

email:ayeslody4ll@gmail.com

Abstract

The mechanical and chemical methods of extraction of tiger nut oil were investigated using mechanical screw press and N-hexane respectively. Tiger nuts are used for food, medicine and industrial purposes and yet its oil energy properties have not been researched much, which was the reason for this research work. Tiger nut tubers sample was bought from Northbank market Makurdi, Benue state. The colour, iodine, specific gravity, free fatty acid, percentage impurity, moisture content, flash point, fire point, saponification value, peroxide value, extraction efficiency and extraction losses of the oil extracted were characterized. The colour of the extracted oil was dark brown yellow and golden yellow for mechanical and chemical methods respectively, Iodine value was determined using wij’s method as 91.508(0.515) g/100g and 91.174(0.127) g/100g for mechanical and chemical method of extraction, specific gravity was determined by density bottle as 0.903(0.016) g/cm3 and 0.892(0.003) g/cm3 for mechanical and chemical method of extraction, moisture content was gotten by oven drying method as 0.375(0.045) % and 0.265(0.0586) % for mechanical and chemical method of extraction, free fatty acid was determined using titration method as 0.381(0.010) % and 2.148(0.067) % for mechanical and chemical method of extraction, flash and fire points were determined using flame test method 159(7.810) °C and 169.00(1.732) °C, 170(2.000) °C and 180(2.646) °C for mechanical and chemical method of extraction respectively; while cloud and pour point were determined by refrigeration method as 10.00(1.732) °C and 8.00(1.00) °C,  4.00(1.00) °C and 4.00(1.00) °C for mechanical and chemical method of extraction. Peroxide value was determined by titration method as 7.547(.560) Meq/g and 0.086(0.013) Meq/g for mechanical and chemical method of extraction. Percentage impurity was 0.036(0.004) % and 1.396(0.004) % for mechanical and chemical method of extraction and saponification was 209.91(2.321) mg/g and 209.33(8.168) mg/g for mechanical and chemical method of extraction, the extractillon losses was 4.250(0.303) % and 0.340(0.056) % for mechanical and chemical method of extraction. Result from mechanical and chemical methods showed that extraction efficiency was 77.5% (0.560) % and 87.5% (0.004) % respectively. Oil yield from mechanical and chemical methods using 100g of tiger nut tuber produced 12.25g equivalent to 0.014liters of oil and 17.5g equivalent to 0.02 liters of oil respectively. ANOVA results revealed that Free fatty acid, percentage impurity, peroxide value, extraction efficiency, extraction losses and fire point of tiger nut oil extracted using both the mechanical and chemical methods were all significantly different at P<0.05 while iodine value, specific gravity, moisture content, flash point, saponification value and cloud point of the oil extracted mechanically and chemically were not significantly different at p0.05.

Keywords: Tigernut, Extraction, oil, Mechanical, N-hexane

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AN APPRAISAL OF OFFICE SPACES AND THEIR EFFECT ON WORKFORCE EFFICIENCY IN SELECTED PUBLIC BUILDINGS

Category : JOURNAL OF SCIENCE AND MULTIDISCIPLINARY RESEARCH, VOLUME 10, NUMBER 2, 2018

I.I. Ella, O. Onazi, E. O. Ola-Adisa and M. Pandur

Department of Architecture

University of Jos, Jos

Email: olaefeadisa@gmail.com

Abstract
The workplace can actually be a source of major stress for workers, therefore some issues in the work place needs to be talked, that will go a long way in improving the atmosphere at work. The appraisal seeks to evaluate the effect of spatial perception on workers efficiency. Through a review of literature and quantitative survey methods, the study determined that the size, has physical effect on thermal comfort and configurations, opening and colour has a psychological effect on workers mood. This in turn has an effect on the length of time and quality of effort put in by the workers. The study concludes and makes recommendations on internal space configurations that enhance worker efficiency.
Keywords: Colour Perception, Workspace Planning, Worker Efficiency
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Table of Contents

Category : JOURNAL OF PHYSICAL SCIENCE AND INNOVATION VOLUME 10, NUMBER2, 2018

User Perceptions of Colour as a Means of Communication

I. I. Ella, O. Onazi, E. O. Ola-Adisa and O.S. Ugbem                                        1-16

An Appraisal of Shading Devices in Institutional Buildings

O. Onazi, N. S. Gaiya, E. O. Ola-Adisa and D. G. Yilme                                   17-31

A Reevaluation on Collide of  Emission on Climate Change

E. W. Likta                                                                                                       32-42

Assessment on Efficacy of Locally-Made Digital Instructional Material

on Achievement Of Physics Students On Current Electricity

Nwoye,  Amarachukwu Nkechi & Nwosu, Frederick Chukwuebuka                43-61

Design Parameters of a Centrifugal Fan for A 200kg Crucible Furnace

Musa Dalil Bello Abubakar Jibrin Abdullahi, Igbax Saanyol Ityokumbul        62-73

Analytical Solution OF a Mathematical Model of Tuberculosis with

Passively Immune Compartment

Abdullah Idris Enagi,Mohammed Olanrewaju Ibrahim &Fatima Sulayman 74-94

Topography, Dumpsites and Groundwater Studies: An Overview

R.N. Opeh & M.O. Atenaga                                                                             95-101

Physicochemical Parameters and Phytoplankton Diversity of Kware Lake

Arzika, A.T.,Adili, A.T., Bagna, E.A., Dandare, K.U., andMohammed, S.                        102-113

PHYSICOCHEMICAL PARAMETERS AND PHYTOPLANKTON DIVERSITY OF KWARE LAKE

Category : JOURNAL OF PHYSICAL SCIENCE AND INNOVATION VOLUME 10, NUMBER2, 2018

1Arzika, A.T.,1Adili, A.T., 1Bagna, E.A., 1Dandare, K.U., and1Mohammed, S.

1Department of Chemistry

Shehu Shagari College of Education, Sokoto State, Nigeria

E-mail: arzikatambuwal1982@gmail.com,                        

Abstract

Kware lake is a popular natural lake in Sokoto, its known to be used for domestic purposes, irrigation practices and fisheries. Anthropogenic activities are routine at the catchment area. Water and phytoplankton samples were collected for five months. Standard procedures were adapted for determination of physicochemical parameters viz; temperature, depth, turbidity, nitrogen, phosphorus, dissolved oxygen (DO), biological oxygen demand (BOD) etc. These parameters were observed to have varied within the period of study. Five species of phytoplankton were identified, Volvox globatorrecorded the highest percentage distribution during the study. The irregular fluctuations and variations observed between the parameters studied does not  exceed the limit approved by WHO and EPA.Keywords: Kware Lake, Limnological, Phytoplankton, Variables, Water

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TOPOGRAPHY, DUMPSITES AND GROUNDWATER STUDIES: AN OVERVIEW

Category : JOURNAL OF PHYSICAL SCIENCE AND INNOVATION VOLUME 10, NUMBER2, 2018

1R.N. Opeh & 2M.O. Atenaga

1&2 Department of Physics with Electronics,

Western Delta University, Oghara, Delta State, Nigeria.

Email: Opehraymond@gmail.com, michaelatenaga@hotmail.co.uk

ABSTRACT

This study pictures a critical analysis on how geophysical imaging technique otherwise called tomography is applied on dump site studies to ascertain the level of contamination of groundwater. Imaging often exposes the movement of leachate from the dumpsite through the subsurface. The direct interaction between the leachate and groundwater brings about contamination of groundwater. The geophysical technique applied in defining the leachate migration is thus analyzed.

Keywords: Dumpsite, Tomography, Imaging, Groundwater, Leachate.

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ANALYTICAL SOLUTION OF A MATHEMATICAL MODEL OF TUBERCULOSIS WITH PASSIVELY IMMUNE COMPARTMENT

Category : JOURNAL OF PHYSICAL SCIENCE AND INNOVATION VOLUME 10, NUMBER2, 2018

1Abdullah Idris Enagi,2Mohammed Olanrewaju Ibrahim &3Fatima Sulayman.

1Department of Mathematics, Federal University of Technology, Minna, Nigeria.

2Department of Mathematics, University of Ilorin,  Nigeria.

3Department of Mathematics, Ibrahim Badamasi Babangida University, Lapai, Nigeria

E-mail: enagi.idris@futminna.edu.ng

ABSTRACT

In this study, we proposed a Mathematical Model of tuberculosis dynamics. The model is a system of four first order ordinary differential equations. The population is partitioned into four compartments of passively immune infant class ,  Susceptible , Infected and Recovered . The analytical solutions using Homotopy Perturbation method (HPM) were obtained. Graphical profiles for each of the four compartments were obtained using MAPLE computer software package.  The results shows that the disease has a tendency of dying out with time when there is high recovery rate.

Key words: Tuberculosis, Analytical solution, Homotopy perturbation.

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DESIGN PARAMETERS OF A CENTRIFUGAL FAN FOR A 200KG CRUCIBLE FURNACE

Category : JOURNAL OF PHYSICAL SCIENCE AND INNOVATION VOLUME 10, NUMBER2, 2018

1Musa Dalil Bello 2Abubakar Jibrin Abdullahi, 3Igbax Saanyol Ityokumbul

1Department of Works, Tudun Wada main Campus, Federal Polytechnic,

2&3Department of Mechanical Engineering, College of Engineering, Federal Polytechnic, Kaduna.

E-Mail:abdrauf35@yahoo.com

ABSTRACT

Centrifugal blowers are applicable in furnaces such as crucible, Rotary and cupola furnace, the efficiency of these furnaces depend on the blast rate and air delivery from a well design blower. This paper discuss the design of a centrifugal blower for a crucible furnace which will give the required manometric efficiency that will aid adequate combustion as   required.  The blower was designed to convert ‘driver’ energy to kinetic energy in the fluid by accelerating it to the outer rim of the revolving device known as the impeller. The impeller, driven by the blower shaft adds the velocity component to the fluid by centrifugally casting the fluid away from the impeller vane tips. The amount of energy given to the fluid corresponds to  the velocity at the edge or vane tip of the impeller.

Keywords: Impeller, Blower, Manometric efficiency, crucible furnace

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ASSESSMENT ON EFFICACY OF LOCALLY-MADE DIGITAL INSTRUCTIONAL MATERIAL ON ACHIEVEMENT OF PHYSICS STUDENTS ON CURRENT ELECTRICITY

Category : JOURNAL OF PHYSICAL SCIENCE AND INNOVATION VOLUME 10, NUMBER2, 2018

Nwoye,  Amarachukwu Nkechi & Nwosu, Frederick Chukwuebuka

Department of Science Education, Nnamdi Azikiwe University Awka; Nigeria

Department of Electrical/Electronic Engineering,  Federal Polytechnic Oko, Nigeria Email: ammynwoye@yahoo.com; jirebus@gmail.com;

ABSTRACT

Problem in the use of analogue electric circuit is observing of readings in uneasy manner and manifestation of parallax error, but use of digital electric circuit is advantageous for it displays readings in fast and accurate manner. This paper focused on assessment on the efficacy of locally-made digital instructional material on physics students’ achievement on current electricity. Two research questions and two hypotheses guided the study. A quasi-experimental research design was used for the study such that experimental group and the control group were taught with locally-made digital instructional material and standard analogue instructional material respectively. The two groups were subjected to pre-test and post-test. Two independent variables in the experiment were instructional material type and gender; a dependent variable was achievement. Population of the study comprised of all SS1 physics students in Anambra State. Purposive sampling was used in selection of 264 students. The instrument used for data collection was Achievement Test on Current Electricity (ATOCE) which is a 40-item 4-option multiple choice objective test with reliability co-efficient of 0.87. Mean and standard deviation were used in answering the research questions. The hypotheses were tested at 0.05 level of significant using ANCOVA. Result obtained showed that physics students taught current electricity with locally-made digital instructional material has higher mean achievement score than those taught with standard analogue instructional material. Hypothesis tested (F = 288.504, P = 0.000) further showed that there was a significant difference in the mean achievement scores of the two groups of physics students. Result also showed that female physics students had a slightly higher mean achievement score than their male counterparts; but hypothesis tested (F = 0.469, P = 0.494) showed that there was no significant difference in the mean achievement scores of male and female physics students. It was concluded that the locally-made digital instructional material was efficacious in enhancing achievement of physics students on current electricity, and it was also gender-friendly. Recommendations made focused on supporting the production and use of locally-made digital instructional material.

Keywords: Locally-made digital instructional material, current electricity, achievement, physics students

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