Use of Instructional Methods and Materials in Teaching Fine and Applied Arts in Colleges of Education in South-West, Nigeria

This study determines the use of instructional methods and materials in teaching Fine and Applied Arts in colleges of education in South-West, Nigeria. The research design adopted for the study was descriptive research using survey methods. Therefore, all 141 Fine and Applied Arts lecturers in government owned were purposively selected for the study. The instrument for data collection was research designed questionnaire titled use of instructional methods and materials in teaching Fine and Applied Arts in colleges of education in South-West, Nigeria. The questionnaire was validated by three curriculum experts and three Fine and Applied Arts lecturers for face and content validity. Test re-test method was used for reliability study while the instrument was subjected to analysis using Cronbach alpha statistic. The value yielded 0.82, 0.77, 0.81, 0.71 and 0.67 respectively. Research questions 1, 3 and 5 were answered using mean rating while research questions 2 and 4 were answered using frequency count and percentage. The results indicated that project method, lecture method and discovery method were mostly used by the lecturers. Lecturer integrated Fine and Applied Arts students into the practical activities and used the equipment and materials regularly. The lecturers usually covered minimum standards. The major problem encountered by Fine and Applied Arts lecturers was inadequate time for practical work. Based on the finding of this study, it was recommended among others that the Fine and Applied Arts lecturers should be encouraged to attend seminars, workshops and conferences to update themselves in their teaching skills

The reaction of Amaranthus hybridus to infection by Amaranthus mosaic virus

This study investigated the effect of inoculating three Amaranthus hybridus cultivars: NHAM/114, NH84/457-IL and LOCAL GREEN cultivar with Amaranthus mosaic virus (AMV) consecutively for four weeks. Results indicated significant differences between the control and virus inoculated plants. Severity of infection by the virus was more pronounced in plants inoculated at early ages while the effect was very mild on plants inoculated at later stage of growth. Reduced weight values were recorded in plants with early infection compared to plants inoculated at later stages of growth. Mean values of 0.190, 0.250 and 0.218 g were obtained for fresh weights of leaves of NHAM/114, NH84/457-IL and LOCAL GREEN respectively at 2 weeks after planting (WAP) while plants that were inoculated at 5 WAP had average values of 0.516, 0.392 and 0.397 g fresh weights of leaves for the three cultivars respectively. The percentage decrease in fresh weight of stem of the LOCAL GREEN cultivar was above average (56%) and higher than those of NHAM/114 and NH84/457- IL. NHAM/114 produced the least dry weights in stem while the highest dry weights were recorded for NH84/457-IL at all the stages of inoculations. These results indicated that infection at an early age resulted in greater reduction of the parameters assessed

Activated Charcoal—A Potential Material in Glucoamylase Recovery

The potential of activated charcoal in the purification of fungal glucoamylase was investigated. Various concentrations of activated charcoal (1–4% w/v) were used to concentrate crude glucoamylase from Rhizopus oligosporus at different temperature values (30–50°C). Effects of pH (3.0–6.0) and contact time (0–60 min) on enzyme purification were also monitored. Activated charcoal (3% w/v) gave a 16-fold purification in a single-step purification at 50°C for 20 min and pH 5.5. The result of SDS-PAGE analysis of purified glucoamylase showed two major protein bands with corresponding molecular weight of 36 kDa and 50 kDa. The method is inexpensive, rapid, and simple which could facilitate downstream processing of industrial enzyme

Comparative analysis of exhaust gases obtained in S.I and C.I of an internal combustion engine

This paper is aimed at analyzing, determining and comparing the composition of exhaust gases of automobile ICE through experimental determination of the exhaust gas values at different loads and speeds of both engines; and determination of the effect of engine speeds and loads on exhaust emissions of both engines.ICE which could be spark ignition (S.I) or compression ignition (C.I) engine is one of the building blocks of modern civilization. In light of this, an effective engine should be able to contribute immensely to a safe environment. Numerous factors like fuel economy, power and torque, reliability, pollution, safety and cost are necessary in determining and comparing the effectiveness of the engines. This paper identifies, examines and compares the rate of incombustible particles present in the engines (S.I and C.I) at varying loading and speed conditions via exhaust gas detector. Post-hoc analysis was carried out using SPSS. It was discovered that CO and HC are the most dangerous incombustible particles present in engines and also the incombustible rate is more pronounced in C.I than S.I engine, which confirmed that S.I. engine is far better in terms of pollution reduction. Probable recommendations were later made.Self-sponsore

Evaluation of the Wood and Plastic Formworks in Building Construction Industry for Sustainable Development

This research work assessed wood and plastic in building construction. The study was a descriptive survey design and as such made use of questionnaire with 42 items. The Population of the study was 110 respondents which include 40 building professional and 70 non-building professional. The data were analysed using mean and standard deviation. The finding of the study shows that plastic work form can be used for casting slab, concrete wall among others. The finding also revealed some factors that determines the selection of form work such as climatic condition, labour efficiency and that plastic formwork saves cost as a result of long reuse period. It is therefore recommended that; plastic and wooden formwork should be integrated often in the casting of slabs, beam and columns without discrimination, proper adherence to standards and specifications for use of any type of formwork, there should be large scale production of plastic formwork to conserve forest and wood, factors to be considered in the selection of formwork should not be ignored, there should be proper weighing of the advantages and disadvantages of each type of formwork relating to the scale of construction before the choice of any formwork

Kinetic Model for Solute Diffusion in Liquid Membrane Systems

In this study, a mathematical model for the kinetics of solute transport in liquid membrane systems (LMSs) has been formulated. This model merged the mechanisms of consecutive and reversible processes with a “semi-derived” diffusion expression, resulting in equations that describe solute concentrations in the three sections (donor, acceptor and membrane). These equations have been refined into linear forms, which are satisfying in the special conditions for simplification obtaining the important kinetic constants of the process experimentally

A hybrid haptic stimulation wearable device to recover the missing sensation of the upper extremity prostheses’ users

A hybrid haptic feedback stimulation system that is capable in sensing the surface texture, and the temperature, simultaneously, was designed for a prosthetic hand to provide a tactile sensation to amputation patients. In addition, the haptic system was developed to enable the prosthetic’s users to implement withdrawal reflexes due to the thermal noxious stimulus in a quick manner. The re-sensation is achieved by non-invasively stimulating the skin of the patients’ residual limbs, based on the type and the level of tactile signals provided by the sensory system of the prostheses. Accordingly, a novel hybrid pressure-vibration- temperature feedback stimulation system was design to provide a huge information regarding the prostheses environment to the users without brain confusing or requiring long pre-training. An evaluation of sensation and response will be performed with healthy volunteers to evaluate the ability of the haptic system to stimulate the human nervous system. The results were presented in term of Stimulus Identification Rate (SIR). The test results and the volunteers' response established evidence that amputees are able to recover their sense of the contact pressure, the surface texture, and the object temperature as well as to perform thermal withdrawal reflexes using the solution developed in this work

Bioaccumulation of heavy metals in common carp fish (Cyprinus carpio) and its relationship with the protein content

The objective of the present study was to investigate the concentration of some heavy metals in the dorsal muscle, gills, and liver of common carp (Cyprinus carpio) from the Dukan lake, Suleimani, Iraq, and its relationship with fish protein content. The sampling was carried out in both the summer and winter seasons of 2021. Fish samples were collected from the water of Dukan lake. Biometry analysis and determining of protein content were carried out. Moreover, the heavy metal concentrations were measured in different tissues and organs of fish (the dorsal muscle, gills, and liver). The metal concentration varied considerably among different tissues and organs. Overall, the mean metal concentration revealed an order of Zn > Fe > Cr > Cd > Cu > As > Pb. The mean concentrations of Zn and Pb were determined as the maximum and minimum concentrations of metals in the fish organs, respectively. Metal accumulation was higher in the gills and liver than in the muscle (except Cr). The content of protein showed a close relationship with some of the metal concentrations. The concentrations of metals like As, Cd, and Cu were higher during the summer than in the winter, except for Cr and Fe. Due to the concerns related to the adverse effects of heavy metals in fish meat on human health, investigation of the concentration of pollution and regular monitoring of the physicochemical and heavy metal contents and its relationship with those measured in fish is strongly recommended

Effect of set-up heights on the performance of pot-in-pot cooling system for storing food and drugs at ambient temperature

The research aimed at evaluating the effect of set-up height on the performance of earthenware pot-in-pot cooling system. The pots were set up at different heights; H1 (0 m), H2 (0.5 m) and H3 (1 m) and observed for 59 days from 8:00am to 6:00pm daily. The inner temperatures obtained from the three different arrangements were determined using standard methods. The result showed that increasing the height from ground level (0 m) to 1 m increases the mean cooling effect by 8 %. Generally, it was observed that only the set-up height at 1 m proved to have maximum efficiency of the pot-in-pot system performance. Keywords— Cooler, Efficiency, Evaporative cooling, Set-up height, Pot-in-pot, Preservatio