Parasitic diseases constitute an important public health problem. Their transmission can occur by ingestion of water contaminated with human feces and/or parasitized animals, and by poorly washed fruits and vegetables. Considering the scarcity of national studies reporting the degree of contamination of vegetables, the present study investigated and compared the contamination of enteroparasites in 32 samples of each of the types: lettuce (Lactuca sativa) of the smooth and curly variety and watercress (Nasturtium officinale), commercialized in the city of Sao Paulo. For this purpose, the samples were washed with distilled water. The product of the washings was decanted in conical sedimentation vessels for 24 hours by the spontaneous sedimentation method, and the sediment was analyzed under an optical microscope. The results showed that of the 96 samples analyzed, 78 (82%) presented some parasitic form. Vegetables purchased from supermarkets and street markets showed a contamination rate of 80% (48/60) and 83% (30/36), respectively. The parasitic forms found were: 42% Ancylostoma sp larvae, 15.94% Ancylostoma sp eggs, 7.24% Ascaris sp eggs, 8.69% Enterobius sp eggs, 8.69 % Strongyloides sp larvae, 7.24% Hymenolepis sp eggs, 5.79% Taenia sp eggs and 4.34% Entamoeba sp cysts. These results demonstrate the need to develop a more efficient health education program aimed at horticulturists and vegetable handlers, with the intention of preventing the occurrence of these parasites, and further contamination of the population.
Applying problem situations in the classroom is a way to promote a challenging learning environment that presents obstacles, and solving these problems requires effort and learning. Games are shown as a very adapted alternative to traditional learning environments because they allow the student to construct knowledge according to their previous experiences, which can help to solve an initial problem. RPG (Role-Playing Game) is a game in which players take on the role of characters in a fictional scenario. An important aspect of the RPG to be used for teaching is that it is a cooperative game, and players will only come to the end to solve the problem if they work as a team. There are already some reports that RPG can be used in Brazilian classrooms as a pedagogical resource in Science, Physics, Mathematics, History, and Geography classes, as well as interdisciplinary works, showing this effort to transform the contents into play activities, into something more attractive to students. The proposal of this work is to determine the current use of the RPG in classrooms in Brazil.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.