The impact of educational robots as learning tools in specific technical classes in undergraduate education

The use of mobile robots in the classroom has gained increasing attention in recent years due to their potential to enhance student engagement and facilitate personalized learning. This research presents the insertion of mobile robots as a hands-on learning experience in Control and Servomechanisms II and Signal Processing II classes. This work also addresses the challenges and limitations of using mobile robots in the classroom, including technical difficulties. The students were evaluated during the code implementation in the practical exercises. Besides, a form was provided to them in order to assess the impact of these robots as part of the pedagogical practice. From the students’ positive feedback, it was possible to conclude that the mobile robots were well-accepted. Besides, the robots enhanced Control Systems classes and improved students’ learning outcomes.The authors would like to thank CEFET/RJ, UFF, UFRJ, and the Brazilian research agencies CAPES, CNPq, and FAPERJ. Besides, the authors are grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support through national funds FCT/MCTES (PIDDAC) to CeDRI (UIDB/05757/2020 and UIDP/05757/2020) and SusTEC (LA/P/0007/2021).info:eu-repo/semantics/publishedVersio

Características fotossintéticas de diferentes genótipos de mandioca.

A mandioca, Manihot esculenta Crantz, constitui-se uma das culturas mais exploradas na agricultura mundial, sendo sua utilização como tuberosa, superada apenas pela batata inglesa (SOUZA; OTSUBO, 2002). Apresenta grande diversidade genética, principalmente na América Latina e no Caribe, onde são criadas constantemente, numerosas variedades de mandioca, as quais recebem diferentes denominações (GUSMÃO; NETO, 2008). Esta cultura apresenta tolerância à seca e possui ampla adaptação a variadas condições de clima e solo (LORENZI et al., 2002), podendo sobreviver a longos períodos de estiagem, adotando mecanismo eficiente para a redução da área foliar e, desta forma, restringindo as perdas de água por transpiração (EL ? SHARKAMY; COCK; PORTO, 1989). Entretanto, esta espécie exige luz e temperatura em abundância para realizar eficientemente a fotossíntese (VERISSIMO et al., 2010).Melhoramento genético. Resumo n. 100

List Of Angiosperm Species In An Atlantic Forest Fragment Reveals Collection Gaps In Espírito Santo State, Brazil

This study presents a list of angiosperm species in an Atlantic Forest fragment in the southern portion of Espírito Santo state, Brazil, a region that represents a collection gap within the Atlantic Forest. The studied site is a relatively small fragment of 144 ha located within a conservation unit, the Mata das Flores State Park. The site belongs to a conservation priority area for the Atlantic Forest in Espírito Santo, and is under strong anthropic pressure. Of the 239 species listed here, 21 are new records for the state, eight are endemic, and 20 figure either in the country’s or the state’s Red Lists of endangered species. Rubiaceae and Piperaceae were the families with the highest number of species. We show that small fragments that were never inventoried before can reveal a relatively large number of threatened species and that collection gaps need to be filled in order to refine our understanding about conservation priorities within the Atlantic Forest Biome. © 2016 Check List and Authors.12111

Inclusão: construção e adaptação de materiais de laboratório de química para um aluno com paralisia cerebral / Inclusion: construction and adaptation of chemistry laboratory materials for a student with cerebral palsy

O objetivo do trabalho foi construir e/ou adaptar materiais de laboratório, para serem utilizados nas aulas experimentais de Química Geral I, para um aluno que apresentava paralisia cerebral. A metodologia constou na observação do comprometimento do aluno e posteriormente a elaboração do material específico para o aluno poder executar a aula experimental. Os resultados foram bastante significativos, com o aluno inserido na aula e executando todas as tarefas propostas. Foi concluido que mesmo com todo o comprometimento que o aluno apresentava, houve a inserção do aluno na disciplina de experimental e consequentemente à turma, ao curso e também ao mundo

Productivity and reserve carbohydrates of pastures under cutting intensities

There is a need to better understand the effects that cutting or grazing exert on forage, thus to facilitate planning of management that will not be detrimental to the productivity or persistence of the plants. To this end, experimentation was conducted in the pastures of the Experimental Station of Empresa Pernambucana de Pesquisa Agropecuária, Itambé-PE to determine the effect of height of cutting on dry matter production (DMP), daily rate of DMP, total N accumulation, and concentration of reserve carbohydrate (RC) in the herbage. A completely randomized experimental design was used, with five replicates per treatment: Brachiaria decumbens and B. humidicola cut at heights of 5, 15, and 25 cm and at 25 cm plus 80 kg of N/ha; and Pennisetum purpureum cut at 5, 25 and 50 cm and 50 cm plus 80 kg of N/ha. Four cuttings took place, the first during the transitional season from dry to wet (Februrary 2001), and three during the wet season (April, July, and August 2001). The 5 cm cutting height resulted in the greatest DMP and total N accumulation. There was a tendency toward higher concentration of RC in the grass harvested in the transition period during which B. decumbens showed higher RC values than the other two species