In recent years, Latin America has experienced unprecedented growth in education coverage resulting in the need for the development of a proficient workforce to sustain and manage its rapid change and improvement. This study investigates the relationship between teacher quality and positive psychology, and more specifically, the importance of how cultural norms impact the way that individuals perceive their professional abilities. Specifically, an ordinal scale, statistical analysis of survey-based data of more than 300 Panamanian teachers was used to determine generalized attitudes regarding respondents' perceptions of self-efficacy and self-permission. The study finds that, in Panamanian culture, teachers' perceptions of self-efficacy are closely aligned with their experience in the classroom, while their perceptions of self-permission are associated with professional qualification.

Keywords -Cultural Norms, Self-Efficacy, Self-Permission, Teacher Perception, Teacher Quality

This research analyzed, designed and detailed balanced cantilever bridges to Euro codes using manual and computer methods. The design was done considering only the superstructure which forms the dynamic element as a load carrying member. A Java based computer program to analyze, design and detail the balanced cantilever bridge was also written. The Java program focused on the design of prestressing cables for box-girder bridges using balanced cantilever method. The program made use of algorithms and visualization techniques. The segments of the bridge ranged from 15 to 48. The maximum number of cables was 819. Also the maximum number of strands was 9822. The maximum bending moment and shear force were 5790000kNm and 44362.5kN respectively......

Keywords - Comparative Design of a Balanced Cantilever Bridge in Java and Eurocode

The present work aims are to study the effects of the magnetic field, internal heat generation, thermal radiation, and bouncy force for the boundary layer on unsteady free convection heat transfer flow of a viscous incompressible electrically conducting fluid along with a vertical plate. The dimensionless partial differential equations of continuity, momentum along energy are analyzed with suitable transformations. For numerical calculation, an explicit finite difference method is applied to solve a set of nonlinear dimensionless partial differential equations. Dimensionless velocity and temperature profile are also investigated due to the effects of the entering parameters in the concerned problem. The analysis of the attained results is presented graphically and the flow field is significantly influenced by incoming parameters. The stability conditions are also examined.

Keywords - Free convection, heat transfer flow, magnetic field, heat generation, explicit finite difference method.

Integer programming is an important class of mathematical programming problems which is a useful tool for modelling and optimizing real-life problems. The knapsack problem is a form of integer programming problem that has only one constraint and can be used to strengthen cutting planes for general integer programs. These facts make the studies of the knapsack problems and their variants extremely important area of research in the field of operations research. This thesis seeks to apply the branch-and-bound algorithm to model site development for solid waste disposal in Sekondi-Takoradi metropolis as a 0-1 knapsack problem. The model developed could be adopted for any land site management problem that can be modelled as a single 0-1 knapsack problem. Seven sites were proposed for development and the study reveals that sites A, B, F and G should be selected to obtain an optimum output and recommend that Knapsack problem model should be adopted by the district assembly for refuse disposal management.

Keywords - Knapsack, garbage, site, development, optimal, branch – and- bound, maximum, minimum.

The springback of sheet metal parts is negative effect which occurs after the forming operation. These parts undergo deformation, which consists of elastic and plastic deformation. The springback effect is related to elastic deformation, which is governed by strain recovery of material after the load removal. The springback prediction is related to many parameters like forming conditions, tool geometry and material properties such as sheet thickness, yield stress, work hardening, strain rate sensitivity, elasticity modulus and numerical parameters. In this work, the influence of tool design on the springback effect of formed part is evaluated...........

Keywords - U-bending, tool design, springback prediction, springback reduction.

The research aimed to evaluate teak leaf extract addition (Tectona grandis Linn. f) in feed to quails' external egg quality. The materials used were 240 laying quails aged 21 days old. The method used was an experiment in a completely randomized design, which classified into four treatments and six repetitions using ten quails for each experiment. The treatments applied were P0 (basal feed), teak leaf extract additions to feed P1 (0.8%), P2 (1.2%), and P3 (1.6%). The variables applied to this research were egg weight, egg index, yolk index, shell thickness, Haugh unit, and yolk color score. The data were analyzed using ANOVA and Duncan Multiple Range Test, only if it has significant results. The result showed that teak leaf extracts significantly affected shell thickness and yolk color score. In conclusion, this research found that the inclusion of 1.6% teak leaf extract as a feed additive increased quails' egg quality.

Keywords - Teak Leaf, egg quality, laying quails.

This research aimed to evaluate the effect of Calliandra leaf (Calliandra calothyrsus) and myristic acid (MA) addition to complete feed based on corn stover towards the nutrient value. The material used were complete feed raw materials based on corn stover, coffee husk, bran, tapioca residue, soybean meal, palm kernel meal, copra meal, urea, molasses, calliandra leaf and myristic acid, The treatments were organized based on DM with the formulations; P1 = Complete Feed (40% Corn Stover + 60% Concentrate), P2 = Complete Feed (40% Corn Stover + 60% Concentrate + 0% Calliandra)+ MA 30g/kg DM, P3 = Complete Feed (40% Corn Stover + 50% Concentrate + 10% Calliandra..........

Keywords - Corn stover, calliandra leaf, complete feed.

The construction industry cannot be totally absolved of such practices that adversely impact the environment, thus, new initiatives called eco-green; sustainable buildings were employed to ensure environmental sustainability. However, despite these initiatives, green building development and sustainable practices are not really practiced in Nigeria. This study aims to identify, examine and outline the benefits, prospects and factors hindering green building development based on professionals' perceptions in Jos, Nigeria. Literatures were reviewed to identify these hindering factors, while the primary instrument of data collection being survey questionnaire in which a total of 50 were administered, out of which were retrieved. Based on the responses analysis and Relative Importance Index (R.I.I) on a four (4) point ranking scale, findings revealed that green building is currently not practiced despite the need..........

Keywords - construction industry, development, environment, green building, sustainability.

One of the methods used to reduce the weight of a construction is by reducing the weight of the walls of the building. In such a case, a wall made of red brick has a volume weight of 1,500–2,000 kg/m3, and concrete masonry bricks made of CLC have a volume weight of 400–1,800 kg/m3. So, in comparison, concrete masonry bricks have a volume weight that is ≤ 50% of that of red brick. In the manufacturing of concrete masonry bricks, one variant is CLC (Cellular Lightweight Concrete), produced using a mixture of cement, sand, chemical admixture and water, with the filler material in the form of air generated as microscale soap bubbles (microbubbles), also known as foam agent. In the manufacturing of concrete masonry bricks, the sand as a binder material clearly affects the physical and mechanical properties of the bricks produced. This research is conducted to investigate the effect of sand gradation which includes a gradation of coarse sand, quite coarse, quite smooth, and smooth, it can be concluded that there was an influence of graded sand against the physical and mechanical properties of CLC concrete masonry bricks that resulted in quite smooth gradations (zone III) of having good sand fineness modulus 3,030.

Keywords - Red brick, cement brick, CLC concrete masonry bricks, fineness modulus sand, physical and mechanical properties.

This paper study of the effect of using treated wastewater on cement mortar and masonry walls, the potable water is considered scarce in many of the world's countries, and finding applications for treated wastewater reuse is very effective in preserving potable water resources. Therefore, an experimental program consisting of three phases was developed. The aim of first phase is to evaluation of the chemical and mechanical properties of the materials used in the specimens. The second phase includes testing of mortar cubes made from potable water and mortar made from secondary treated wastewater, according to the Egyptian code for designing and executing masonry works. The third phase is studied masonry prisms' using two types of mortar is mentioned above, where tests were conducted (compressive strength, shear strength, in plane tensile strength, flexural tensile strength for out of plan bending). The results showed minor change for strength prisms values, which constructed by using mortar made from secondary treated wastewater compared to prisms constructed by using mortar made from potable water.

Keywords - Treated Wastewater, Mortar, Axial compressive strength, Shear Strength, In-Plane tensile strength, Out-of-Plane tensile strength

The convergent-divergent nozzles with varying cross-sections are designed and are investigated by numerical simulations. Variation in divergent angle is made from 4.76ᵒ to 10ᵒ keeping all input parameters constant. Velocity, pressure, and Mach number contours are computed for every nozzle configuration obtained. Results report the direct proportion of velocity obtained at the outlet with the divergent angle when the computation is done considering the turbulence model. The results at the optimized divergent angle are calculated by analytical formulation in parallel and the mathematical results are found in good conformation with the analytical solution. Results so obtained show that even the slight variation of 0.01ᵒ in divergent angle above the optimized value shows reverse flow..........

Keywords - ICEM, C-D nozzle, Mach number, Divergent angle, Reverse flow.

This study aims to determine the impact of cooperative coaching on skills competency of vocational education cadets. This type of research uses experimental research with statistical tests, while the research design that will be used is the pretest-posttest control group design, the research subjects are 90 cadets. Data collection tools using interviews, questionnaires, documentation and observation. The results showed that the development of a cooperative coaching model for cadets based on the results of this study showed a significant effect on the skills competence of cadets. Guidance during the learning process is very helpful in forming attitudes and social skills and motivation of cadets. Coaching will help cadets who have difficulty learning, with coaching will be facilitated by cadets who have learning difficulties.

Keywords - cooperative, coaching, vocational, skill, competence.

Treatment of municipal wastewater has excellent potential in the circular economy, especially for water reuse. When we would like to reuse treated wastewater, we should additionally purify WWTP's effluent. Our research work was introducing membrane filtration with an ozone generator (MFO) to treat the effluent from municipal wastewater treatment plants. We used a SiC membrane filter with pores of 100 nm. The main goal was to remove as many suspended solids, organic matter, and bacteria as possible to obtain water that could be reused for various purposes. After membrane filtration of treated water (WWTP's effluent), the following treatment efficiency was achieved, namely: 55% of COD, 92% of total suspended solids (TSS), 88% of total coliform bacteria (MPN), and 93% based on Escherichia coli.......

Keywords - Municipal wastewater, MFO system, water reuse, ozonation, SiC membrane filter.