The Role of University-Industry Linkage in Creating a Functional Technical and Vocational Education and Training (TVET) in Nigeria

This study was on the role of university-industry linkage in creating a functional technical and vocational education and training (TVET) in Nigeria. The study specifically looked into the concept of TVET, types of university-industry linkage, reasons for university-industry linkage, current status of university-industry linkage, challenges mitigating university-industry linkage, strategies for effective university-industry linkage in the universities and the role of viable university-industry linkage in creating a functional technical and vocational education and training. It was noted that in order to build a viable linkage between the universities and the industries, legislators at both federal and state levels need to come up with laws and policies that will foster university-industry linkage with clear implementation strategies, compulsory periodic internship for both lecturers and students, integration of professionals from the industries in the TVET curricula planning and implementation processes. It was concluded that when a strong linkage is established between the universities and industries, TVET will receive the dividends and as such be made functional and effective

Study of Head Loss in Rapid Filtration with four River Sands

In this work, we studied the filtration behavior, with regard to the head loss, of four calibrated Togo Rivers sands compared to that of a reference filter sand imported from Europe. The objective is to determine the suitability of local rivers sands as filter sands for water treatment plants. The sands were successively loaded into a filtration pilot and subjected, during at least 20 hours, to the filtration of water whose turbidity was maintained at around 20 NTU. The results show that the average deviations of the head loss profiles as a function of depth, calculated in relation to the head loss recorded on the reference sand, at the same filtration time t=20h, are small and vary from 2 cm to 8 cm.  In the same way, the curves of the head loss as a function of time are quite close to the one observed for the reference sand. Examination of the clogging front after 20 hours of filtration reveals that the progression is either the same or greater and reached 20 cm in depth at the same time. This study can be extended to other rivers sand samples and by varying the turbidity and the filtration rate. Doi: 10.28991/cej-2021-03091682 Full Text: PD

Assessing the Relevance of Practical Activities in the Teaching and Learning of Integrated Science in Juniour Secondary Schools in Gombe Metropolis of Gombe State

The study was carried out to find out the level of application of practical activities in learning science concepts in integrated science in the secondary schools in Gombe metropolis, also it sought to find out the problems that militate against the successful application of practical activities in learning science concepts. The study was guided by five research questions and one hypothesis. The study adopted a quasi experimental research design and consists of the control and experimental group in determining the effect of practical activities on students’ academic achievement, the control group received no treatment while the experimental group was taught for a period of two weeks employing practical activities.  Also a questionnaire was designed for the teachers, to get their opinion about practical activities in learning science concepts as test was administered to the students to determine the difference in the academic achievement of students taught employing practical activities and those taught with the conventional method. The SPSS was used for the statistical analysis of Pearson Product moment correlation coefficient and the study made the following findings, practical activities in learning science concepts increases students achievement in science, spurs their motivation for learning and makes learning more meaningful as theories are concretized. The study also suggested training and retraining of integrated science teachers to enable the mastery of methodologies recommended for the teaching of integrated science and application of practical activities in the learning of science concepts

Robustness and reliability review of Si and SiC FET devices for more-electric-aircraft applications

Increased electrification of traditionally hydraulic and pneumatic functions on aircrafts has put power electronics at the heart of modern aviation. Aircraft electrical power systems have traditionally operated at 115 V AC and 28 V DC with a constant speed generator and transformer rectifier units converting jet engine power into electrical power. However, due to the increasing trend towards the More Electric Aircraft (MEA), 270 V DC systems are likely in the future. This calls into question, the power semiconductor device technology that enables the on-board power converters needed for electro-mechanical actuation as well as solid-state circuit breakers for system protection. Silicon IGBTs have been the work-horse of power electronics, but as switching speeds increase due to the need for high frequency operation, the bipolar nature of IGBT tail currents become a limiting factor for improved energy conversion efficiency. A number of unipolar FET technologies, including SiC trench MOSFETs, SiC planar MOSFETs, silicon super-junction MOSFETs and SiC JFETs in cascode with a low voltage Si MOSFET, have become commercialized at around 650 V. However, reliability and robustness, especially against single event burn-out and/or single event gate rupture is critical. This paper experimentally investigates the performance of the listed FET devices under Unclamped Inductive Switching and Bias Temperature Instability/gate oxide stress tests

Adapting Kwl Strategy for Teaching Science Practicals to Children with Special Needs for Effectives Learning

The learning of science is imperative for development in every society, and so it should not be limited to some persons. Therefore, these study sets out to use KWL strategy to adapt science teaching to the children with special needs for effective learning.The research design used in this study was the quazi experimental design specifically the pretest-posttest method. Three research questions guided the study. The sample of the study was made up of eight junior secondary one students from one public school in Lamingo, Jos plateau Nigeria. Intact class was used because there was no randomization. Base line data was collected from the class teacher on the students previous performance on the topic Classification of food. The researcher later taught same topic using KWL strategy for three weeks after which a test is given to collect data in form of scores. The data was analysed using percentage.The findings showed that KWL engaged students in the topic taught and also activated prior knowledge. KWL also enhanced good performance, thinking skill and promote curiosity.The researchers recommended that: teachers should ensure that appropriate activities be planned to take care of student needs; Government to ensure that all children have an equal right to education of any type

Rôle Des Guides De Tourisme Dans La Conservation De La Reserve De Biosphère De La Pendjari

: La réussite du tourisme dans un espace nécessite la disponibilité des professionnels du monde touristique en général et des guides du tourisme en particulier : ils sont les maîtres du tourisme. Le guide du tourisme représente la boussole du touriste dans sa visite dès son arrivée dans le milieu d’accueil jusqu’à la fin de son séjour (départ). Des  données  relatives  aux  types  de  guide  de  tourisme,  leurs  formations  de  base, leurs fonctionnements en milieu réel de situation et la perception des populations sur le métier du guidage ont été collectés auprès de la population-cible, de la mairie, de l’office du tourisme au sein de la réserve  de  Biosphère  de  la  Pendjari. Ces données ont permis d’avoir un point de vue global sur le métier de guide du tourisme, son fonctionnement et la perception des touristes. Le  modèle  d’analyse SWOT a  permis  d’identifier  les  forces  et  faibles  liées  au  métier  de  guide  du  tourisme,  les opportunités et menaces qui favorisent l’existence du métier de guide du tourisme. L’analyse des résultats obtenus a permis de dénombrer trois catégories de guide du tourisme dans la  Réserve  de  Biosphère  de  la  Pendjari: le guide  accompagnateur,  le  guide  local  et  le  guide  conférencier ou animateur. La saisonnalité de l’activité touristique dans la réserve conduit la majorité des guides à mettre en place des activités secondaires afin de s’assurer un niveau de vie décent. Pour d’autres, ces activités constituent une porte de sortie pour quitter le métier de guide. 48% des guides pensent mettre en place des projets pouvant contribuer au développement du tourisme dans la réserve de biosphère de la Pendjar

Candidiasis, A Rare Cause of Gastric Perforation: A Case Report and Review of Literature

Fungi are unusually rare causes of gastric perforation, with most cases of gastric perforation occurring as complications of peptic ulcer disease (PUD), nonsteroidal anti‑inflammatory drugs (NSAIDs) and gastric neoplasms. Here, we report the case of a 70‑year‑old Nigerian male who presented with severe epigastric pain, with no associated history of PUD, NSAIDs use or gastric neoplasm. An emergency exploratory laparotomy was performed and a gastric perforation was discovered and repaired. Histopathological examination of the gastric perforation edge biopsy revealed an intense Candida growth consisting of numerous fungal spores and hyphae invading and destroying the gastric wall. He was subsequently treated with fluconazole antifungal and discharged home after an uneventful postoperative period

Change in Lipid Quality of Tilapia Fish (Oreochromis niloticus) After Different Heat Treatments

Tilapia fish (Oreochomis niloticus) has been considered to be popular among the freshwater fishes, economically cheap and more abundant in Nigeria. For this reason, a study was conducted on the effect of traditional processing methods on fatty acid composition of Oreochomis niloticus using electric oven (control), sawdust, melon husk and rice bran as different heat treatments. Fatty acid composition was determined using standard analytical technique. The result showed that palmitic and oleic acids had the highest concentrations among saturated and unsaturated fatty acids in all the processed samples, respectively. It was also revealed that samples of Oreochomis niloticus recorded decrease in total saturated fatty acid (TSFA) with various heat treatments whereas the same heat treatments enhanced the components of total unsaturated fatty acids (TUFA) and total essential fatty acid (TEFA). It was found that levels of ratio of n–6 PUFA to n–3 PUFA and oleic to linoleic which are used as biomedical index are desirable in all the processed samples of Oreochomis niloticus oils. However, heat treatment using sawdust was proven to be of good economic potential. Keywords: Oreochomis niloticus, agricultural wastes, fatty acids

A Relative Study on Weight Changes and Notable Physical Observations in Adults Albino Wistar Rats Fed with Yaji (A Complex Meat Sauce)

This 6-week study investigates the effect of Yaji on body and organ weights of rats averagely weighing 229g. The rats (n=32) were divided into 4 groups (A-D) with 2 subgroups (A1-D1 and A2-D2) respectively. Group A served as the control, while B-D served as tests. B1, C1, and D1 (n=8 each), received 80g/20g, 60g/40g and 40g/60g of feed/Yaji respectively for a period of 3 weeks (acute period), while B2, C2 and D2 (n=4 each) received 40g/10g, 30g/20g and 20g/30g of feed/Yaji respectively for the remaining 3 weeks (chronic period). Control subgroups A1 (n=8) and A2 (n=4) received normal feed. Throughout the study, the physical and behavioral changes of the rats were recorded as well as the body and organ weights of the rats before and after the rats were sacrificed. Results showed statistically significant weight changes (weight loss in group B during the acute and chronic periods and in C and D during the acute period only) and weight gain in C and D during the chronic period only. Although human data remains yet undetermined, our findings however, supports earlier claims that Yaji has potentials for weight management, while suggesting a working reference weight reduction rat-dose of 20g.Keywords: Yaji, Addictives, Spices, Nutrition, Weight changes, Physical observations