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Usman M.J.,Bauchi State University | Xing Z.,China University of Technology | Chiroma H.R.,University of Malaya | Gital A.Y.,University of Technology Malaysia | And 2 more authors.
International Review on Computers and Software | Year: 2014

In this paper, we propose a Modified Low-Energy Adaptive Clustering Hierarchy (MoLEACH) protocol to improve energy consumption in in Wireless Sensor Networks. The novelty of MoLEACH is that, unlike the original LEACH that uses the residual energy of the network, it considers the residual energy of each node for calculation of the threshold value for the next round in cluster head selection. We make comparative simulation analysis between the MoLEACH and LEACH in testing different parameters such as first node dead, half node dead, and the effect of the number of nodes to the network lifetime. The simulation results show that the number of nodes affects the network lifetime in which increments of number of nodes decrease the network lifetime. In small area, minimum number of nodes is better for network lifetime in both MoLEACH and LEACH protocols. Hence, MoLEACH shows improvement of energy efficiency over the LEACH. © 2014 Praise Worthy Prize S.r.l. All rights reserved.

Abdulhameed M.,Bauchi State University | Vieru D.,Technical University Gheorghe Asachi | Roslan R.,University Tun Hussein Onn Malaysia | Shafie S.,University of Technology Malaysia
Meccanica | Year: 2016

The flow of an oscillating motion of viscoelastic fluid in a capillary tube is modelled to determine a sinusoidal waveform effect on the heat transfer performance. Analytical technique based on finite Hankel transformation, incorporating Laplace transformation and combined with confluent hypergeometric function (Kummer’s function) is implemented in time and space with the constitutive model for the viscoelastic fluid. Explicit analytical expressions for the steady, permanent and transient solutions for both the velocity and temperature fields describing the flow at small and large times have been derived. The results are displayed graphically, and the influence of the Prandtl number Pr and transient amplitude (Formula presented.) is discussed. © 2016 Springer Science+Business Media Dordrecht

Sarmin N.H.,University of Technology Malaysia | Gambo I.,Bauchi State University | Omer S.M.S.,University of Benghazi
Jurnal Teknologi | Year: 2015

In this paper, G denotes a non-abelian metabelian group and cl(x) denotes conjugacy class of the element x in G. Conjugacy class is an equivalence relation and it partitions the group into disjoint equivalence classes or sets. Meanwhile, a group is called metabelian if it has an abelian normal subgroup in which the factor group is also abelian. It has been proven by an earlier researcher that there are 25 non-abelian metabelian groups of order less than 24 which are considered in this paper. In this study, the number of conjugacy classes of non-abelian metabelian groups of order less than 24 is computed. © 2015 Penerbit UTM Press. All rights reserved.

Duwa H.,University Of Maiduguri | Oyawoye E.O.,Bauchi State University | Njidda A.A.,Bayero University
Pakistan Journal of Nutrition | Year: 2012

An experiment was conducted to determine the productive parameters and carcass characteristics of broilers fed sorrel seed meal. A total of 160 Anak broiler chickens were used for the experiment. The birds were randomly allocated to four dietary treatments containing sorrel seed meal with different processing methods; Raw sorrel seed, roasted sorrel seed, boiled and dried sorrel seed and soaked and dried sorrel seed. The criteria for the assessment were growth performance, digestibility and carcass characteristics. Mean daily weight gain and daily feed intake of the birds at starter phase varied from 22.36-30.69 g/bird and 65.62-68.83 g/bird. The daily weight gain for the finisher phase range 47.66-53.57g/bird and 120.72-145.14 g/bird for daily feed intake at finisher phase. The result of daily weight gain and feed intake of combined phase show significant difference (p>0.05). Birds on boiled and dried sorrel seed meal had the highest daily weight gain (42.13 g/day) and daily feed intake (105.26 g/day). The nutrient digestibility were generally high for all nutrients (above 60%) except crude fibre which range between 47.89-51.95%. The results of the carcass show significant far all the body part except for some organs spleen, liver and intestine which showed no significant difference (p<0.05). © Asian Network for Scientific Information, 2012.

Buba J.A.A.,P.A. College | Al-Shujairi Y.B.J.,University Putra Malaysia | Ya'U M.S.,Bauchi State University
International Journal of Applied Linguistics and English Literature | Year: 2016

It is quite interesting to note that Pidgin which essentially began as a demanded language between the white importers, who later turned colonial masters, and their black traders has now become a campus language-spoken of the majority of the population among the Nigerian students in advanced institutions of learning. Nigerian Pidgin English evolved as a result of language contact with the British colonialists. This study seeks to assess the use, and also determine the recognition of Pidgin English among Nigerian postgraduate students in Universiti Putra Malaysia. Questionnaires were administered on selected students in the university in an attempt to elicit the attitude and usage of the informants to Nigerian Pidgin English. The results were calculated in percentages. It was found that the attitude of Nigerian students regarding the Nigerian Pidgin English in UPM is positive. To conclude, in the next few years, Nigerians are expected to use Nigerian Pidgin English in all situations when they communicate. © 2016, Australian International Academic Centre PTY LTD. All rights reserved.

Abubakar A.,University Putra Malaysia | Abubakar A.,Bauchi State University | Mustafa M.B.,University Putra Malaysia | Johari W.L.W.,University Putra Malaysia | And 2 more authors.
Water, Air, and Soil Pollution | Year: 2016

Tributyltin (TBT) is a species of organotin compound (OTC), used as antifouling biocide in boat and ship paints to prevents the attachment of marine organism on their hull surfaces. Tributyltin was found to be very toxic to a variety of targeted and non-targeted organisms and has high persistence in sediments even after the total global ban by the International Maritime Organization (IMO) in 2008. Therefore, there is an urgent need to clean up TBT-polluted environments after the global banning due to the significant risks it poses to the human and aquatic organisms for its slow degradation rate. In selecting bioremediation agents, indigenous bacteria were documented to be of great potentials compared to non-indigenous. In this study, comparison was made between a bacterial isolate Klebsiella sp. FIRD 2, isolated from TBT-contaminated surface sediment and Pseudomonas specie isolated from non-TBT-contaminated soil. Previously, we isolated, screened, and identified Klebsiella sp. FIRD 2 as a TBT-resistant bacterium from TBT-contaminated surface sediment of Kong Kong Laut, Johor, Malaysia. The isolate was able to resist TBT up to 1500 μg/L without addition of carbon source in minimal salt medium (MSM). Pseudomonas sp., isolated from non-TBT-contaminated soil was tested in MSM treated with different concentration of TBT. The bacterium did not endure to survive in TBT-treated media without addition of carbon source; thus, the strain has no ability to utilize TBT as source carbon. Growth of Pseudomonas sp. was observed in MSM treated with TBT at concentration of 500 μg/L and 1000 μg/L along with addition of glucose as carbon source. No growth of Pseudomonas sp. was observed in MSM with higher TBT concentration even with additional of carbon source. This study equally endorses the potentials of indigenous bacteria in bioremediation of TBT contamination. © 2016, Springer International Publishing Switzerland.

PubMed | University Putra Malaysia and Bauchi State University
Type: Journal Article | Journal: Marine pollution bulletin | Year: 2015

A possible tributyltin (TBT)-degrading bacterium isolated from contaminated surface sediment was successfully identified as Klebsiella sp. FIRD 2. It was found to be the best isolate capable of resisting TBT at a concentration of 1000 g L(-1). This was a concentration above the reported contaminated level at the sampling station, 790 g L(-1). Further studies revealed that the isolate was Gram negative and resisted TBT concentrations of up to 1500 g L(-1) in a Minimal Salt Broth without the addition of any carbon source within the first 48 h of incubation. It is expected that additional work could be conducted to check the degradation activity of this new isolate and possibly improve the degradation capacity in order to contribute to finding a safe and sustainable remediation solution of TBT contamination.

PubMed | University Putra Malaysia and Bauchi State University
Type: | Journal: BioMed research international | Year: 2015

Breast cancer is the malignant tumour that developed from cells of the breast and is the first leading cause of cancer death among women worldwide. Surgery, radiotherapy, and chemotherapy are the available treatments for breast cancer, but these were reported to have side effects. Newcastle disease virus (NDV) known as Avian paramyxovirus type-1 (APMV1) belongs to the genus Avulavirus in a family Paramyxoviridae. NDV is shown to be a promising anticancer agent, killing tumour cells while sparing normal cells unharmed. In this study, the oncolytic and cytotoxic activities of NDV AF2240 strain were evaluated on MDA-MB-231, human mammary carcinoma cell line, using MTT assay, and its inhibitory effects were further studied using proliferation and migration assays. Morphological and apoptotic-inducing effects of NDV on MD-MB-231 cells were observed using phase contrast and fluorescence microscopes. Detection of DNA fragmentation was done following terminal deoxyribonucleotide transferase-mediated Br-dUTP nick end labeling staining (TUNEL) assay, which confirmed that the mode of death was through apoptosis and was quantified by flow cytometry. Furthermore, analysis of cellular DNA content demonstrated that the virus caused an increase in the sub-G1 phase (apoptotic peak) of the cell cycle. It appears that NDV AF2240 strain is a potent anticancer agent that induced apoptosis in time-dependent manner.

Dalhatu S.A.,University of Technology Malaysia | Dalhatu S.A.,Bauchi State University | Hussin R.,University of Technology Malaysia | Deraman K.,University of Technology Malaysia
Jurnal Teknologi | Year: 2016

Magnesium sulfoborate glasses of different compositions were prepared using melt quenching method with the purpose of using it for optical properties. The Fourier Transform Infra-red (FTIR) Spectroscopy, Nuclear Magnetic Resonance (NMR) and X-Ray Diffraction (XRD) have been carried out. Density and molar volume have been evaluated and analysed. From the results of XRD, the absent of discrete and continuous sharp peaks confirmed the amorphous nature of the glass compositions while the results from both FTIR and NMR revealed the existence of BO3, BO4 units. Addition of MgO to sulfoborate influenced the conversion of the dominant BO3 groups to BO4 groups. The BO4 groups are known for creating complex defects that transform into that stable trap good for optical phenomena. It was observed that the density of glass increases while the molar volume is decreases with respect to increase in concentration of alkaline earth oxide in the glass compositions. © 2016 Penerbit UTM Press. All rights reserved.

Maji I.K.,Bauchi State University
Energy Reports | Year: 2015

This paper examines the impact of clean energy on economic growth in Nigeria. Autoregressive distributed lag (ARDL) approach to cointegration was used to determine the existence of cointegration among the variables. The long run results suggest a significant negative relationship between two indicators of clean energy (alternative and nuclear energy and electric power consumption) and economic growth. The result further reveals a significant positive relationship between combustible renewables and waste and economic growth. Mixture of negative and positive relationships between clean energy indicators and economic growth was obtained in the short, although not significantly different from zero. We concluded that Nigeria has Potentials of clean energy to be reaped in near future. © 2015 Published by Elsevier Ltd.

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