Teaching telecommunications theory for Engineering Technologies Information students can be viewed as an interesting challenge. This is mainly due to Telecommunications theory which integrates knowledge about two basic sciences: physics and mathematics. The proposal explained in this paper focused on obtaining and deeply understanding the physical concepts related to the theory of telecommunications, rather than memorizing equations, which most of the time would not make sense for students. Engineering students' work focusing on learning the physical and mathematical concepts, was able to design and develop academic tools with two important characteristics for Universities with low budget: easy to use and inexpensive. Therefore, the teaching-learning process is more efficient being adjusted to their endemic circumstances about understanding, knowledge application and few economic resources. Moreover those students were facing less problems understanding and handling the mathematical equations related to the telecommunications theory. Following the proposed procedure, students have designed and built academic tools, such as videos, crosswords, C# applications, graphing on worksheets, and so on. To monitor progress weekly, evaluation was conducted using questionnaires without equations, which were evaluated by the students themselves. Electronic and pedagogical tools were combined to design specific audiovisual aids to facilitate and assure that students were obtaining and retaining those physical and mathematical concepts before starting the equations handling. A comparison was done about groups working under two scenarios: the one described above and the other called in this report "traditional". A drastic difference about student's grades between two groups was observed.

Introduction. The water of aquatic ecosystems considered extreme, given the values of its physicochemical and chemical parameters, such as high concentrations of salts, oligotrophic environments, extreme pH, high radiation and extreme temperatures, there is a bacterial population that has adapted to these conditions and that they can be an important reservoir of natural resistomes. Objective. The objective of the present work was to know the profiles of susceptibility to various antibiotics in strains of the Bacillus genus isolated from mineromedicinal water spas and water from a volcanic crater lake in Ecuador. Materials and methods. A total of 16 mineromedicinal water samples and 32 samples of crater volcanic lake water were analyzed. The isolation of the Bacillus colonies was carried out by the membrane filtration technique, using Millipore filters of 0.45 μm pore, a sample volume of 100 mL and R2A agar. The isolated strains were identified following the schemes of MacFaddin (2004), complemented with the biochemical tests of the Microgen galleries for Bacillus. The antibiotic resistance profile was determined by the plate diffusion method of Kirby and Bauer (1966), interpreted according to the CLSI (2019). Results. 19 Bacillus strains were identified. Most of the strains were resistant and multi-resistant to the antibiotic clindamycin, erythromycin, gentamicin, oxacillin, and penicillin. Conclusions. The results indicate the presence of Bacillus species and resistomes associated with this genus in the water of extreme natural environments in Ecuador, which suggests that these environments may be an important reservoir of bacteria resistant to antibiotics.

This report describes the procedure to develop mathematical literacy through learning basic mathematical concepts, and applying the acquired knowledge for the development of elemental software to be used as academic tool. Basic operations with matrix were performed using open and commercial sources software. A simple and basic matrix calculator were developed integrating mathematical concepts and software development skills, and the deliverable was a calculator developed on Java platform. The procedure started from a traditional classroom explanation; worked on calculus worksheet, solving some academic problems about addition, subtracted product of two matrix, following by the use of some commercial software, and finally the development of the own academic tool. These works were developed into the frame of competency based education system.

No abstract

No abstract