JOB SATISFACTION AND ITS PREDICTIVE MEASURES ON JOB SATISFACTION OF ADMINISTRATIVE STAFF IN SOUTH WEST NIGERIA UNIVERSITIES

The study examined the components of job satisfaction and its predictive measures on job satisfaction of administrative staff in south west Nigeria Universities. The study employed a descriptive research of the survey type to describe and interpret the components of job satisfaction of administrative staff in the South West Nigeria Universities. A self constructed questionnaire tilted job satisfaction questionnaire (JSQ) was used to collect information from respondents. Four hundred respondents from various departments were rated by their heads of department. Multi stage technique was used in selecting the four Universities, two federal and two state Universities. The data were analyzed using multiple regression model. The study revealed that achievement is the best predictor of job satisfaction of administrative staff with a beta weight of 1.236. Recommendations were made based on the findings that the administrators and management of the Universities should give attention and priority to those variables that would promote job satisfaction among the administrative staff of the Universities. Since a person’s achievement, could advertise his personality in the society, the administrative policies should be enriching to accommodate in-service training on the job, car and housing loan, medical facilities, and if pension scheme is robust, security of the workers are ensured, the moderate job satisfaction could be high satisfaction

Job Satisfaction And Gender Factor Of Administrative Staff In South West Nigeria Universities

The study investigated the level of job satisfaction of male and female administrative staff in South West Nigeria Universities. The research design used was a descriptive survey type. The population consisted of all the senior administrative staff in the universities, out of which a sample of 400 respondents made up of 100 respondents from each of the state and federal universities. Two research questions were raised while one hypothesis was generated and tested at 0.05 level of significance, using t-test statistical method. The result of the analysis showed that the level of job satisfaction of administrative staff in both federal and state universities was high. It was also revealed that there was no significant difference in the job satisfaction of administrative staff in the universities. It was revealed that there was significant difference in the job satisfaction of male and female administrative staff in the universities. Based on this findings, it was recommended that the university management should provide more motivational factors that would sustain the tempo of the workers.  Also, the university management should design a programme that would make the female workers satisfied value and their work like their male counterparts. So that educational goals would be achieved

Principal Administrative Challenges and Funding for Teachers Effectiveness in Secondary Schools in Ekiti State

This study examined principals’ Administrative challenges, funding and teachers’ effectiveness in secondary schools in Ekiti State. The study specifically examined the extent to which principals’ administrative challenges have hindered teachers’ effectiveness. It also investigated the level of teachers’ effectiveness. The study adopted the descriptive research design of the survey type. The population of the study comprised all the 203 principals and 7,538 teachers in 203 secondary schools in Ekiti State. The sample consisted 30 principals and 300 teachers drawn from 30 public secondary schools in Ekiti state using multi- stage sampling procedure. Two sets of instruments tagged ‘principals Administrative Challenges Questionnaire (PACQ)’’and ‘Teachers Effectiveness Questionnaire (TEQ)’’ were used for the study. The two instruments were validated by experts in Educational Management and Test and Measurement to determine the appropriateness in order to ensure the face and content validity. The test retest method of reliability was used to ascertain the reliability of the PACQ and TEQ and a reliability coefficient of 0.82 and 0.80 were obtained respectively. The research questions were answered using frequency count and percentage scores why Pearson Product Moment Correlation was used to test the hypothesis. The findings showed that the level of principals’ Administrative challenges in Ekiti State was moderate and the level of teachers’ effectiveness in Ekiti State waslow. There was a significant relationship between principals’ administrative challenges and teachers’ effectiveness. It was therefore recommended that government should ensure adequate funding for secondary schools as and when due and provision of other incentives for smooth running of the school administration

Assessment of Aero-radiometric Data of Southern Anambra Basin for the Prospect of Radiogenic Heat Production

High-resolution aero-radiometric data from three radio-elements (Uranium, Potassium and Thorium) were used and processed independently to investigate the Southern Anambra basin for the prospect of producing radiogenic heat. The rock types in the study area were outlined while processing the elements in each rock to evaluate the radiogenic heat production values. The results of the analysis of the radiogenic heat production of the study area ranges between 0.01 – 5.43 μWm-3. The highest heat produced came from the sedimentary rocks (Shale) with radiogenic heat production value up to 5.43 μWm-3. The highest value of the radiogenic heat production in this basin has a value of 5.43 μWm-3 around Aimeke and Ogobia. The airborne total radiometric count of radio-elements and radiogenic heat maps were produced.Key Words: Aero-radiometric; Radiogenic Heat; Anambra Basin; Geotherma

Job Performance And Gender Factors Of Administrative Staff In South West Nigeria Universities

This study examines the level of administrative staff job performance in South West Nigerian universities and also investigates whether the administrative staff job performance is related to their sexual characteristics. An instrument titled Job Performance Questionnaire (JPQ) was used to collect the data and was administered 400 subjects in various departments to be rated by their supervisors or heads of departments. They were randomly selected through a multi-stage technique from four universities - two federal and two state universities. The data employed a descriptive research of the survey type. The data were subjected to frequency counts, percentages, bar charts, and t-test analysis. The findings revealed that the administrative staff job performance was high. Furthermore, there was no significant difference between the job performance of male and female administrative staff in the universities. Recommendations were made based on the findings that university management should encourage and motivate the workers more by providing a conducive environment to sustain and boost the morale of the workers so that they can give their best to realize educational goals. Also, more opportunities should be given to both male and female administrative workers to perform by organizing workshops, seminars and conferences, both within and outside Nigeria, so that the tempo at which the workers work may be sustained and possibly be improved upon

Tangential Flow Treatment of Poultry Processing Wastewater Using Stainless Steel Ultrafiltration Membrane

The current treatment of poultry processing wastewater (PPW) requires a large expanse of land, takes time, and requires chemical usage. The wastewater is typically treated prior to discharge. Apart from aiming to reuse the treated water for non-potable activities, this project aimed to reduce the footprint and time required for PPW treatment. To intensify the PPW treatment units, we studied the possibility of replacing dissolved air floatation (DAF) with a stainless steel ultrafiltration membrane (SSUF). Combined PPW from all processing units taken before the first DAF and the second DAF were used for this study with no pretreatment. The SSUF used for this study has a pore size of 0.02 µm, and the performance of the SSUF membrane was studied by measuring the flux at 40 psi, 70 psi, and 110 psi transmembrane pressure. The flux was normalized to 250C. To understand the properties of the PPW, we characterized the PPW by first measuring the particle size analysis to determine the distribution of particles in the PPW. Also, COD, BOD, TSS, TKN, PH, oil, and grease were measured before and after each experiment. A cleaning procedure that entails using alkali and acid was developed for the SSUF. The result shows that the flux became steady at 30 L/m2h after 2 hours of experiment, irrespective of the TMP. We also determine the critical flux and the critical pressure of the SSUF. The critical flux was found to be around 48 L/m2hr, and the critical pressure is 5 psi at 1.90 m/s cross-flow velocity. The SSUF membrane removed TSS 99.9%, oil and grease 99.9%, COD 90%, BOD 90%, nitrogen 76%, and soluble BOD 60%. The removal efficiency was higher at 110 psi. On comparing the result obtained with the data from the industry, it shows that the SSUF performance was comparable. The membrane removed E. coli and coliform up to 99.9%, which validated the pathogen removal ability of the SSUF. In conclusion, the results show that SSUF achieved comparable performance to that of the current treatment used for the PPW treatment

Physico-Chemical and Bacteriological Analyses of Borehole Water Samples around The Federal University of Technology, Akure, Nigeria

Three water samples were collected around The Federal University of Technology, Akure (FUTA), Nigeria. The samples were analyzed for physicochemical properties such as temperature, acidity alkalinity, conductivity, chemical oxygen demand (COD), biochemical oxygen demand (BOD), nitrate, phosphate and sulphate, total hardness and suspended solids. The levels of heavy metals in the samples were also investigated. Microbial analysis was carried out on the samples to assess faecal contamination and type of bacteria present. For the physicochemical properties, chemical oxygen demand (COD) values for samples A and B deviated from 10 mg/L specified by WHO whereas the value for sample C was within the standard. Total alkalinity and phosphate values exceeded WHO standard limits. Also, the values of dissolved oxygen (DO) (8.28 - 10.97 mg/L) and pH (5.79 – 5.95) failed the standards set by WHO. Sample C was below WHO standard for total hardness having 93.60 mg/L as against 100 mg/L (minimum). However, calcium hardness, suspended solid, dissolved solids, BOD, and concentrations of heavy metals in the samples were within WHO permissible limits for drinking water. The microbial analysis showed that the samples contained some undesirable microorganisms such as E. coli (an indication of faecal contamination)

Investigation of Optical and Structural Properties of GeSn Heterostructures

Silicon (Si)-based optoelectronics have gained traction due to its primed versatility at developing light-based technologies. Si, however, features indirect bandgap characteristics and suffers relegated optical properties compared to its III-V counterparts. III-Vs have also been hybridized to Si platforms but the resulting technologies are expensive and incompatible with standard complementary-metal-oxide-semiconductor processes. Germanium (Ge), on the other hand, have been engineered to behave like direct bandgap material through tensile strain interventions but are well short of attaining extensive wavelength coverage. To create a competitive material that evades these challenges, transitional amounts of Sn can be incorporated into Ge matrix to form direct bandgap GeSn alloys that have led to the increasing possibility of engineering a suite of low-cost, light emission sources that applies to a wide range of infrared photonics and optoelectronics systems. Hence, the importance of studying the structural and optical properties of these GeSn heterostructures cannot be overemphasized. The first part of this dissertation investigates the structural and optical properties of SiGeSn/GeSn/SiGeSn quantum wells (QWs) where the photoluminescence (PL) behaviors of thick (22 nm in well) and thin (9 nm in well) GeSn QW samples are compared. Using PL results from two excitation lasers (532 nm and 1550 nm lasers) as well as studying their respective optical transitions, the result reveals that the thicker well sample shows i) a more direct bandgap outcome in addition to a much lower ground energy Г valley; ii) a higher carrier density within the well, and iii) an increased barrier height coupled with improved carrier confinement. All of these resulted in a significantly enhanced emission that allows for the first-ever estimation of GeSn QWs quantum efficiency (QE) while also suggesting a path towards efficient mid-infrared devices. To further improve the carrier confinement while also reducing the carrier leakage in the thicker well design, a SiGeSn/GeSn/GeSn/SiGeSn separate confinement heterostructure (SCH) is introduced. The sample is characterized and the optical properties are compared with the previously reported 9 nm and 22 nm well non-SCH samples. Based on the optical transition analysis, the SCH QW also shows significantly higher carrier confinement compared to reference samples. In addition to these studies, an attempt is made to investigate advanced quantum well structures through an all-inclusive structural and optical study of SiGeSn/GeSn/SiGeSn multi-quantum wells (MQWs). The resulting analysis shows evidence of intermixing diffusion during growth. The second part of this work provides insights into the behavior of annealed GeSn bulk samples near the indirect-to-direct transition point. The study attempts to provide connections between the strain, composition, and defect densities before and after annealing. The result reveals the impact of annealing on a sample may either i) lower the strain giving rise to an increased PL while reducing the energy separation or ii) introduce misfit dislocation/ surface roughness leading to an affected or decreased PL. Finally, this work also explores the low-temperature capability of our in-house plasma-enhanced ultra-high vacuum chemical vapor deposition system through the growth of Si-on-Ge epitaxy and pressure-dependent growth of GeSn bulk heterostructures

Tangential Flow Treatment of Poultry Processing Wastewater Using Stainless Steel Ultrafiltration Membrane

The current treatment of poultry processing wastewater (PPW) requires a large expanse of land, takes time, and requires chemical usage. The wastewater is typically treated prior to discharge. Apart from aiming to reuse the treated water for non-potable activities, this project aimed to reduce the footprint and time required for PPW treatment. To intensify the PPW treatment units, we studied the possibility of replacing dissolved air floatation (DAF) with a stainless steel ultrafiltration membrane (SSUF). Combined PPW from all processing units taken before the first DAF and the second DAF were used for this study with no pretreatment. The SSUF used for this study has a pore size of 0.02 µm, and the performance of the SSUF membrane was studied by measuring the flux at 40 psi, 70 psi, and 110 psi transmembrane pressure. The flux was normalized to 250C. To understand the properties of the PPW, we characterized the PPW by first measuring the particle size analysis to determine the distribution of particles in the PPW. Also, COD, BOD, TSS, TKN, PH, oil, and grease were measured before and after each experiment. A cleaning procedure that entails using alkali and acid was developed for the SSUF. The result shows that the flux became steady at 30 L/m2h after 2 hours of experiment, irrespective of the TMP. We also determine the critical flux and the critical pressure of the SSUF. The critical flux was found to be around 48 L/m2hr, and the critical pressure is 5 psi at 1.90 m/s cross-flow velocity. The SSUF membrane removed TSS 99.9%, oil and grease 99.9%, COD 90%, BOD 90%, nitrogen 76%, and soluble BOD 60%. The removal efficiency was higher at 110 psi. On comparing the result obtained with the data from the industry, it shows that the SSUF performance was comparable. The membrane removed E. coli and coliform up to 99.9%, which validated the pathogen removal ability of the SSUF. In conclusion, the results show that SSUF achieved comparable performance to that of the current treatment used for the PPW treatment

Mathematical modeling for Human Immunodeficiency Virus (HIV) transmission using generating function approach

This study is concerned with the mathematical modeling for human immunodeficiency virus (HIV) transmission epidemics. The mathematical models are specified by stochastic differential equations that are solved by use of Generating Functions (GF). Models based on Mother to child transmission (MTCT) (age group 0-5 years), Heterosexual transmission (age group 15 and more years) and combined case (incorporating all groups and the two modes of transmission) were developed and the expectations and variances of Susceptible (S) persons, Infected (I) persons and AIDS cases were found. The S1(t) Susceptible model produces a constant expectation and increasing variance. It was shown that Mother to Child transimission and Heterosexual models are special cases of the Combined model