Comparing the Effect of Inquiry-Based Multiple Intelligence Approach and Non-Inquiry Based Multiple Intelligence Approach on Achievement in Science

The paper focused attention on comparing the effect of inquiry based multiple intelligence approach and noninquiry based multiple intelligence approach on achievement of pupils in some selected primary schools. Two primary schools were selected purposively with one intact class from each school. Each intact class of thirty (30) pupils were randomly assigned to the two groups used for the study. A total of sixty (60) pupils were used in the study. The two groups were assigned each to the inquiry based multiple intelligence approach group and the noninquiry based multiple intelligence approach group. The research design was a quasi-experimental design, involving a pretest and post-test in achievement of students. The reliability of the test instrument was established at 0.75 which was considered adequate. A pretest- was administered to the pupils .The pupils were taught science concepts based on the curriculum of the ministry of education for a period of eight (8) weeks using the inquirybased multiple intelligence approach and non- inquiry multiple intelligence approach for group A and B respectively after which the post-test- was administered. Findings using the statistical techniques of mean, median, standard deviation and one way analysis of covariant (ANCOVA) were used to proffer answers to the generated research questions and hypotheses revealed that there was significant difference between the achievement scores of pupils in science for the use of non- inquiry based multiple intelligence approach and noninquiry based multiple intelligence approach on. It was also statistically established that the effect of inquiry based multiple intelligence approach was on achievement is science was better. Conclusion and recommendations such as introducing and enhancing the use of inquiry based multiple intelligence approach in primary schools was made

Swift Fabrication of Silver Nanoparticles Using Bougainvillea glabra: Potential Against the Japanese Encephalitis Vector, Culex tritaeniorhynchus Giles (Diptera: Culicidae)

Mosquitoes are the most critical group of insects in the context of public health, since they transmit key parasites and pathogens, causing millions of deaths annually. Culex tritaeniorhynchus is an important vector of Japanese encephalitis (JE) across urban and semi-urban areas of Asia. In this study, we bio-fabricated silver nanoparticles (Ag NP) using the leaf extract of Bougainvillea glabra as reducing and stabilizing agent. The synthesis of Ag NP was confirmed analyzing the excitation of surface Plasmon resonance using ultraviolet–visible (UV–vis) spectrophotometry. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) showed the clustered and irregular shapes of Ag NP. The presence of silver was determined by energy dispersive X-ray (EDX) spectroscopy. Fourier transform infrared (FTIR) spectroscopy analysis investigated the identity of secondary metabolites, which may act as Ag NP capping agents. The acute toxicity of B. glabra extract, synthesized Ag NP and a combined treatment testing blends of both mosquitocidals was evaluated against larvae and pupae of Cx. tritaeniorhynchus.B. glabra showed LC50 of 198.93 (larva I), 234.50 (II), 309.18 (III), 371.69 (IV) and 466.09 (pupa) µg/ml, Ag NP LC50 ranged from 7.77 (I) to 19.44 µg/ml (pupa). Combined treatments with B. glabra leaf extract plus 5.12.5 µg/ml of Ag NP lowered the botanical LC50 to 66.09 (I), 76.48 (II), 99.02 (III), 133.43 (IV) and 179.74 µg/ml (IV), respectively. The effectiveness of green-fabricated Ag NP against the JE vector was confirmed in adulticidal tests, as well as evaluating the impact of Ag NP on fecundity and longevity of adult mosquitoes. Lastly, the larvicidal effectiveness of Ag NP was confirmed in the field, treating sewage water bodies. Overall, this study suggests that the green-synthesized Ag NP fabricated using B. glabra can be considered a potential mosquito control device against the JE vector, C. tritaeniorhynchus in Asian regions