An investigation into the influences upon and determinants of perceived quality achievement in the management of construction projects by multivariate analysis

This research concerns a quantitative examination of the influencing factors on the achievement of quality on construction projects. Quality performance on construction projects has been conceived as a function of the design process that occurs before the design of the product, site team collaboration and interpersonal relationships, high work-place-supervision, on-site motivation and role definition. This conception has culminated in postulated determinants of quality achievement on construction based on a theoretical understanding. Aspects of measure of perceived design core job characteristics and site organisationand- management phenomena were factor analysed. The verification of the postulated determinants was accomplished by testing of a network of eight main hypotheses using multivariate analytical technique in multiple regression. Varied results emerged with four main hypotheses supported, two partially supported and the remaining two unsupported by data. The assertion is that manipulative actions on design core job characteristics, team collaboration and consensus with mutual understanding and agreement on project goals, mutual exchange with site supervisory staff and subordinates, and role definitions conducted within an integrated framework would contribute an aggregated beneficiary effect on quality achievement on construction projects

Spatial Distribution of Naturally Occurring Radioactive Materials in Soil and the Consequent Population Effective Dose

Communication in Physical Sciences 4(2):133-140 Authors: Habu Tela Abba and Muhammad Sani Isa Received 20 September2019/Accepted 29 November 2019 Protection and assessment of any radiation pollution resulting from the use and disposal of radioactive materials to the large extent is based on the knowledge of natural radioactivity levels of an environment. Therefore, this work was designed to determine the distribution of naturally occurring radionuclides materials (NORMs) (in some residential areas within plateau state). Concentrations of 226Ra, 232Th and 40K in soil across the eight geological formations of Jos Plateau were measured using high resolution HPGe detector. The activity of 226Ra varied between 34 1 and 1006  Bq kg-1, 67 2 and 1695 37 for 232Th and between 67 4 and 2465 45 Bq kg-1for 40K.The mean concentration exceeded their corresponding global average values. Annual effective dose due to gamma radiation for general public were within the permissible limit of 1 mSv. The radiometric data obtained from the study could be useful for geochemical exploration in the study area

Effect of Service Charge Administration on Occupants’ Satisfaction and Aesthetic Quality in Kaduna, Nigeria

Service charge is essential for buildings to enable them recoup the return on investment, aesthetic quality, safety, satisfaction and durability amongst others, such that the property is kept in habitable condition at all times. However, prolong neglect and poor maintenance culture of property is manifesting in various degrees and majorly amidst public properties in Nigeria. Hence, this study investigated the effect of service charge administration on occupants’ satisfaction and aesthetic quality among multi tenanted office building in Kaduna with a view to ensuring effective service charge delivery. To achieve the goal, the study was handled statistically utilizing a descriptive and cross-sectional study design, as well as a survey method employing questionnaires as data collecting devices. The population for the study comprised of tenants of BOI Building and Turaki Ali House making up a sample frame of 222 tenants with a sample size of 160. Data collected were analyzed using Partial Least Square Structural Equation Modeling ..