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Comparative Study on the risk Assessment of Polycyclic Aromatic Hydrocarbons (PAHs) Content in the Roasted muscle of Free-lance and Broilers Chicken in Akwa Ibom State Nigeria

Jonah, A. E. & Essien, K. E.

Department of Science Technology

Akwa Ibom State Polytechnic, Ikot Osurua

Email: akan.jonah@gmail.com

ABSTRACT

Comparative study on the risk assessment of polycyclic aromatic hydrocarbons (PAHs) content in the roasted muscle of free-lance and broilers chicken in Akwa Ibom State Nigeriawere carried out using standard analytical methods as described by USEPA,2010. The result obtained for the Risk Assessment of PAHs content in the roasted muscle of freelance were; anthracene; 0.0670mg/kg, Pyrene; 0.5383mg/kg,  Benzo(a) Anthracene; 4.1784mg/kg, Chrysene; 0.2188mg/kg, Benzo(k) fluranthene; 0.1443mg/kg, Benzo(a) Pyrene; 0.0478mg/kg, Benzo (g,h,i) Pyrene; 0.6318mg/kg, Diabenz(a,h) anthracene; 0.5664mg/kg and Indeno(1,2,3-cd) Pyrene; 0.9990mg/kg. The result for roasted muscle of the broilers chicken were; anthracene; 0.0509mg/kg, Pyrene; 0.0007mg/kg, Benz(a) anthracene; 0.0032mg/kg, Chrysene; 0.0309mg/kg, Benzo(k) flouranthene; 0.0018mg/kg, Benzo(a) Pyrene; 0.0609mg/kg, Benzo(g,h,i) Pyrene; 0.0483mg/kg, Dibenz(a,h) anthracene; 0.0794mg/kg and indeno(1,2,3-cd) Pyrene; 0.0039mg/kg. The concentration of Pyrene, benz(a), anthracene, benzo(g,h,i) Pyrene, Dibenzo(a,b) anthracene and indeno(1,2,3-cd)Pyrene were higher in roasted freelance chicken than the European Union Standard Limit. The correlation analysis shows a positive strong correlation at P<0.01 as follows : Anthr/Py (r = 0.950546), Anthr/Chry (r = 0.79307), Py/Chry (r = 0.943036), B(a)A/Chry (r = 0.87532), Anthr/B(f)F (r =0.82591), Py/B(f)F (r=0.960178), Chry/B(f)F (r =0.998433), Py/B(g,h,i)P (r=0.810799), Chry/B(g,h,i)P (r = 0.959345), B(f)F/B(g,h,i)P (r=0.942045), Anthr/D(a,h)A (r=0.819004), Py/D(a,h)A (r =0.956711), While there was a negative correlation between Anthra/B(A)P(-0.73645) at P<0.01. This correlation shows that as the potential risk of anthracene increases, the potential risk of B(a)P decreases. The research shows that there is risk in consumption of roasted muscle of freelance chicken than roasted muscle of broilers chicken.

 Key words; Risk assessment, Trace metals and Roasted chicken


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SENSITIVITY OF SOME STATIONARY ITERATIVE METHODS TO TOLERANCE PARAMETER

A. A. Ibrahimand R. O. Osinowo

Department of Mathematical Sciences,

Oduduwa University, Ipetumodu, Ile-Ife, Nigeria

Email: adebisiibrahim97@gmail.com

ABSTRACT

Stationary iterative solution of algebraic system of equations requires the input of the coefficient matrix  , the constant column vector , the initial approximation , the tolerance parameter,  and , the intended maximum number of iterations.. While the coefficient matrix and the column vector are given, the initial approximation, usually taken to be the zero column vector of the same dimension as the constant column vector , the tolerance parameter and the intended maximum iterations are to be supplied by the one performing the operation.  Again, the intended maximum iterations only sets the limit that must not be exceeded, the tolerance parameter plays a significant role in the arithmetic precision of the output. The Jacobi and the Gauss-Seidel iterations are used to solve some equations and they yielded useful results. The tolerance parameter was observed to have effect on the number of iterations as well as their minimization of the errors involved.

Keywords: Stationary iterative methods, algebraic system of equations, tolerance parameter, minimization of the errors.


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Quantitative Evaluation of Organochlorine Pollutants in Cabbage Plant Cultivated Along River Getsi, Kano State

1A. E. Ekevwe; 2A. A. Nuhu; 2Z. I. Yashim & 2E. D. Paul

1Department of Chemistry, Federal College of Education (Technical) Bichi, Kano

2Department of Chemistry, Ahmadu Bello University, Zaria

Email: upambrose@yahoo.com

ABSTRACT

Contamination of cabbage plant cultivated along river Getsi through water, soil and air by industrial, domestic and agricultural waste poses great health risk to the public when consumed. The study is aimed at evaluating the health risk associated with organochlorine pollutants (OCPs) in cabbage plant cultivated along River Getsi. Cabbage plant samples are collected fresh in the farmyard, with clean sampling container, washed, dried, extracted, cleaned up before identification and determination of organochlorine pollutants. Gas Chromatography-Mass Spectrometer (GC-MS) equipped with Electron Capture Detector (ECD) was used for the analysis. Percentage recovery obtained was 53% with a spiked sample concentration of 0.264µg/kg and control sample concentration of 0.155ng/kg. The concentration 0.007µg/kg of the analyte in cabbage was below the WHO and NESREA guideline limit of 0.01mg/kg. Hence, there are detective concentration of OCPs in cabbage plant examined, continuous exposure may exceed threshold level, which is dangerous,so  it is necessary for regulatory bodies to prevent and minimized the contamination load.        

Keyword: Gas Chromatography, Mass Spectrometer, Electron Capture Detector, organochlorine pollutant.


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Geology, Occurrences and Industrial Applicability of Barite Deposit in Gombe Inlier within Gongola Basin Upper Benue Trough, Nigeria

Mohammed Rabiu1 , Ahmed Isah Haruna1 & Sa’id Abdulkarim2

1Department of Applied Geology, Abubakar Tafawa-Balewa University, Bauchi

2PSC Exploration Department, National Petroleum Investment Management Services  

 (NPIMS/NNPC), Bauchi, Bauchi State Nigeria

Email: marrah201354@gmail.com.

ABSTRACT

The extensive Geological Mapping in Gombe Inlier has revealed that the area is characterized by two major Rock types: The Basement complex rocks represented by the Rocks of Biotite Granite, Migmatite Gneiss which is surrounded by the Cretaceous Sedimentary Sequences which encompasses; BimaFormation,Yolde Formation, Pindiga Formation followed by Gombe formation. Barite Mineralization in Gombe Inlier occurs along veins that are structurally control within the Inlier. There is a progressive increase in the BaSO4     content as well as specific gravity from the contact with the wall Rock toward the center of the vein, i.e. from creamy/white to smoky/dark variety. . For Gombe inlier deposit, obtained data indicate that it can be classified in to two grades Barite in terms of qualities and specifications for industrial applications. The creamy /white variety with 95.75% BaSO4     ,94.35% BaSO4    and 95.91% BaSO4     with  average specific gravity of  4.83g/cm ,4.61 g/cm and 4.54 g/cm , white streak and hardness of 3.2 is suggested to be grade one type. The smoky/dark variety with 90.30% BaSO4     ,90.44% BaSO4     and 90.06% BaSO4   with average  specific gravity of 3.81 g/cm 3.95 g/cm  and 3.33 g/cm ,white streak and hardness of 3.3 can ben consider as grade two Barite .The chemical composition of the Barite, when compare with international standards and specifications for various industrial applications make it pure and good quality that make it suitable for use in various industries that requires the commodity.

KEY: Geology, Occurrence, Quality and Structures.


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Mathematical Models for Monitoring Diabetic Population with Minor and Major Complications

Goni Umar Modu, Muktar Modu & Modu Mohammed
Department of Statistics

Ramat Polytechnic, Maiduguri, Borno State, Nigeria

Email: goni_umar@yahoo.com

ABSTRACT

Mathematical model for monitoring diabetic populations with minor and major complications are developed and analyzed in this work. The equilibrium point of the system is shown to be globally asymptotically stable (GAS) using direct Lyapunov method. Some numerical simulations are carried out to demonstrate the analytical results. It is found that the prevalence/incidence of diabetes is on the rise. Our results are effective in monitoring diabetic populations with minor and major complications. The model can be used to monitor global diabetic populations over time.

Keywords: Diabetes, Model, Complication, Global stability.


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The Manner of Death in a Tertiary Institution, a Window to Life Expectancy: A Retrospective Post-Mortem Study

Imasogie Dele Eradebamwen & Udoh Mojisola

Department of Morbid Anatomy 

University of Benin Teaching Hospital, Benin City, Edo State, Nigeria

E-mail: eradebamwen4real@yahoo.com

ABSTRACT

The World Health Organization (WHO) had estimated the average life expectancy of Nigerians to be 54.5 years. It is very likely that a sizeable number of the recorded deaths in our environment could have been prevented thereby increasing the estimated life expectancy by WHO. An objective assessment of the manner of death at post-mortem speaks volume; therefore the aim of this study is to determine the manner of death at post-mortem at the University of Benin Teaching Hospital. This was a retrospective post-mortem study that was carried out at the Department of Morbid Anatomy, University of Benin Teaching Hospital over a 2 year period from 1st of January 2013 to 31st of December 2014.  The subjects of this study were all post-mortem cases during the period under review. Data was obtained from the hospital and departmental archives. Data analysis was done using the Statistical Package for Social Sciences, version 20. The manner of death encountered in this study was natural (48.6%), accident (42.7%), homicide (5%), undetermined (3.3%) and suicide deaths (0.3%) in decreasing order of frequency. The mean age for natural death was in the 6th decade while it was in the 4th decade for other categories of manner of death. There was a male preponderance in each category of manner of death. A sizeable number of deaths recorded in this study were largely preventable. To this end, preventive measures are very important in reducing needless death with resultant increase in the life expectancy.

Key word: Manner of death, Natural death, Accidental death, Homicidal death, Suicidal death and undetermined death.


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A 19 Month’s Old African Female with Gluteal Yolk Sac Tumour: A Case Report and A Review of Literature

Uchendu Obiora Jude &Odion-Obomhense Helen

1Department of Histopathology, Delta State University Teaching Hospital, Oghara, Delta State

2Department of Pediatric Surgery, Delta State University Teaching Hospital, Oghara, Delta State

Email: ojlinksent@yahoo.com

ABSTRACT

Primary Yolk sac tumour (YST) of extragonadal site is a very rare tumour, usually arising from malignant transformation of misdirected primordial germ cell on transit from the yolk sac to gonads. The present study reports a primary YST of the gluteus in a 19 years old African child presenting with acute urinary retention and constipation. Complete tumour excision was done resulting in relief of urinary and bowel symptoms. In the face of limited investigation tools, light microscope observation of Schiller-Duvall bodies in histopathology specimens, as seen in this case, is diagnostic. Complete excision with Platinium-based chemotherapy has been shown to gives excellent 5 year survival. Alpha fetoprotein (AFP) is useful marker in monitoring response to therapy. Poverty and unavailability of advanced diagnostic tools are however major challenge in diagnosis of atypical cases in Africa.

 Key word: Yolk sac tumour, Gluteal mass, Histology


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A Review of Important Limitations of Fine Needle Aspiration Cytology in the Investigation of Thyroid Masses

Obahiagbon Ikponmwosa*& Imasogie Dele Eradebamwen**

*Department of Anatomic Pathology, University of Benin Teaching Hospital, Benin City, Nigeria

**Department of Anatomic Pathology, University of Benin Teaching Hospital, Benin City, Nigeria

Email: ikflex@yahoo.com; Corresponding Author: Obahiagbon Ikponmwosa

ABSTRACT

Thyroid masses are frequently encountered in clinical practice and are readily accessible for fine needle aspiration cytology (FNAC), either directly or via image guidance, for rapid diagnosis in the hope of avoiding unnecessary surgery. FNAC of the thyroid is attractive because it is a relatively simple technique, non-invasive, minimally painful, relatively cheap, and offers the possibility of arriving at definitive morphological diagnoses of thyroid masses without first surgically obtaining a specimen. It is important to develop, ensure and maintain expertise in this proven investigative modality while recognizing its important limitations, some of which this article highlights.

Keywords: Thyroid, Fine needle aspiration cytology (FNAC), Limitations.


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Awareness and Compliance to Protective Eye Wear among Welders in Obio/Akpor LGA of Rivers State, Nigeria

Oboh, R.A., Onwukwe, N.A. & Nwafor, S.U.

Department of Optometry

Madonna University Elele Campus Rivers State, Nigeria

Email: rolandoboh1@gmail.com.

ABSTRACT

 Personal protective equipment is essential for anyone involved in hazardous or injury prone job description such as construction, wood work, metal and rail engineering and as such workmen are mandated to protect themselves from harm. Many eye injuries can be prevented by wearing the appropriate protective eye wear. This study assessed the level of awareness and compliance to protective eye wear among welders in Obio/Akpor Local Government Area of Rivers State, Nigeria. A descriptive cross sectional study was conducted among welders in Obio/Akpor Local Government Area of Rivers State, Nigeria. Respondents were selected by simple random sampling. A structured interviewer administered questionnaire was utilized for data collection. Data was analyzed using simple descriptive statistics employing tables and charts. Test statistic for association of variables was done using the Chi Square test. The study involved 103 welders comprising of 101 males (98.1%) and 2 females (1.9%). The ages of the participants ranged from 16 -65 years with an average age of 34.92±10.13, with the 26-35 years group having the largest proportion of 40 participants (38.8%) and the 56-65 years group having the least with 4 (3.9%) participants. Majority, 98 (95.1%) of the participants were aware of the need for ocular protection during work out of which 65 (63.11%) complied regularly, 22 (21.3%) complied occasionally, 15 (14.56%) complied rarely and 1 (0.97%) had zero compliance. 50 (83.33%) participants with secondary school education complied regularly to protective eye wear use, 7(63.64%) participants with tertiary education and 8 (25%) participants with primary education. Majority, 15 (77%) of participants with over 15years experience complied regularly while only 7 (33.33%) with 1-5 year experience complied regularly. The most preferred eye wear employed was Sunshade, 57(55.3%), followed by welding goggles, 43 (41.7%) while 3 (2.9%) used Fancy transparent glasses. Conclusively, Chi Square statistics revealed that compliance to protective eye wear was significantly associated with the age and educational attainment of participants but not associated with their years of work experience.                                                                                  Keywords: Protective eye wear, welders. Ocular hazards.


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CONTENTS

Partial Least Squares (Pls-Sem): A Note for Beginners

Mohammed Lawal Yahaya; Zainab Ango Murtala2 & Henry. N. Onukwu……………….. 1

Factors Influencing the Quality of Road Construction in Jos Metropolis

I.M. Oyemogum   M.S. Buba   & E.A. Rugu……………………………….……………………..31

Suitability of Maize Cob Ash as a Partial Replacement of Cement in Sandcrete Blocks

Anowai, S. I.; Ishaya, A. A.; Zakka, P. W.; Yahaya, A. M. & Oyelade, O.M.…………25

An Industrialized Building System Approach to Housing Development in Nigeria

Adeagbo, Dorcas Omolola and Anigbogu Natalia, A…………………………………….31

The Structural Control of Barite Mineralization in Gombe Inlier within Gongola Basin Upper Benue Trough, Nigeria   

Mohammed Rabiu, Ahmed Isah Haruna & Buhari Salihu.……………………………………42

The Scenario of Tourism Planning and Promotion in Osun State, Nigeria

Sati j. Shwarka & Lebana M. Daspan ……………………………………………………..57

Gaps in Solid Waste Management in Elele Community

Favour Chukumela Woko……….………………………………………………………….70

Comparative Analysis of the Quality of Rainwater Harvested From Rural and Urban Communities in Ughelli North Local Government Area, Delta State, Nigeria

Origho Thaddeus………………………………………………………………………………………..82