No abstract

RESUMOO presente estudo propôs-se a identificar de que maneira o conceito Saúde é compreendido e trabalhado pelos professores de Educação Física do Ensino Fundamental II, descobrir se a abordagem pedagógica Saúde Renovada é conhecida e tem sido aplicada nas aulas, bem como discutir a importância da mesma no contexto escolar. Uma pesquisa de campo foi realizada por meio da aplicação da técnica de entrevista individual semi-estruturada, como instrumento de coleta de dados. A amostra foi composta por dez professores de Educação Física que ministram aulas no Ensino Fundamental II de escolas da rede pública, localizadas no município de Jaguariúna-SP. No estudo constatou-se que 100% dos professores entrevistados não possuem conhecimento sobre a abordagem pedagógica Saúde Renovada. No entanto, verificou-se que os mesmos profissionais trabalham com elementos da temática Saúde em suas aulas, ainda que esta não seja o eixo central contemplado em suas ações docentes.Palavras-Chave: Educação Física escolar; Saúde, Ensino fundamental, KNOWLEDGE OF PHYSICAL EDUCATION SCHOOL TEACHERS ON RENEWED HEALTH APPROACH AND HEALTH THEME ABSTRACTThis study seeks to identify how the concept of Health is understood and worked by teachers in the Elementary School Physical Education II, find out if the pedagogical Renewed Health approach is known and has been applied in the classes as well discuss the importance of the same in the school context. A field survey was performed by applying the technique of semi-structured individual interviews as an instrument of data collection. The sample was composed of ten physical education teachers who teach classes at the Elementary School II in public schools located in the city of Jaguariúna-SP. The study found that 100% of the teachers interviewed have no knowledge about the pedagogical Renewed Health approach. However, we observed that these professionals work with thematic elements of Health in their classes, although this is not the central axis covered in their teaching action.

The objective of this work was to evaluate the effect of different water deficiency and rehydration levels on the concentrations of osmoregulators in two plant species (Hymenaea courbaril and H. Stigonocarpa) in the Amazon. We adopted a 2 9 5 9 5 factorial system, referring to 2 species (H. courbaril and H. stigonocarpa) and 5 stages of hydration and rehydration. The five hydration and rehydration stages were established in: (1) Control treatment E0; (2) Plants with 13 days of stress after incubation-E13; (3) Plants with 26 days of stress E26; (4) The plants that were established after 26 days after incubation and rehydrated for two days (RD2); (5) rehydrated for two days (RD4). The plants that were established after 26 days after incubation and rehydrated for four days. The experiment totaled fifty young plants with five replicates. Biochemical measurements were performed at the beginning of the experiment (E0) at 13 (E13) and 26 (E26) days after the water stress, in which the plants were rehydrated, repeating the analyses after two (RD2) and four (RD4) days. Both species increased the sucrose concentration by 18%, with a decrease of 52% in starch content. The RD4 time presented the highest mean starch concentration (0.19 mmol g -1 of the residue for H. courbaril and 0.27 mmol g -1 of residue for H. stigonocarpa). Increased proline concentrations were recorded for controls until RD2 for both species. For glycine betaine, the highest increases in treatments E26 and RD2 were observed for the H. courbaril species. Our rehydration period was not sufficient for total recovery of pre-stress concentrations of all studied solutes.

Corn (Zea mays L.) is highly adaptable, but it has difficulties in expressing its productive potential in soils with high aluminum content, since this element is directly related to high acidity in the soil. The objective of this study was to evaluate the nitrogen compounds, proteins and amino acids of two corn cultivars subjected to increasing doses of aluminum. The experiment was carried out in a greenhouse using one of the corn plants from varieties BRS 106 and BRS 4157. The experimental design was entirely randomized, in a factorial design of 5x2, and the factors were composed of five doses of Al 3+ (0; 50; 100; 150 and 200 mmol L-1), with five repetitions. The variables analyzed were the concentration of nitrate, the activity of the nitrate reductase, concentration of ammonium, amino acids and proteins. There was a decrease in nitrate, activity of the Reductase enzyme of the Nitrate and protein in the highest dose of aluminum (200 mmol L-1) for both cultivars. There was an increase in ammonium and amino acids in the leaves of cultivars BRS 106 and BRS 4157. Cultivars BRS 106 and BRS 4157 were affected by the increasing doses of aluminum, but cultivar BRS 106 showed to be more tolerant.

The aim of this study was to develop mathematical models to estimate the leaf area of common bean (Phaseolus vulgaris) in irrigated and non-irrigated water regimes from linear dimensions. An experiment was carried out in a completely randomized design with a 3×2 factorial arrangement (three cultivars: Triunfo, Garapiá and FC 104; two water regimes: irrigated and non-irrigated) with 25 replicates each. A total of 523 trifoliates were collected throughout the crop cycle. The length (L, cm) and width (W, cm) of the central leaflet of the trifoliate were measured and their product (LW) (cm²) calculated. Then, the leaf area of these trifoliates was determined by digital photography methods using ImageJ® software, and using leaf discs. The number of samples required to estimate the leaf area of a trifoliate was determined to define which method is the most accurate to be used as the real leaf area in generating equations to estimate the leaf area in common bean. The relationship between area by digital photographs and the dimensions of the central leaflet of the trifoliate (L, W and LW) was fitted by linear, quadratic and power models. Subsequently, the predictive capacity of the equations was assessed by the root mean square error (cm2 trifoliate-1), mean absolute error (cm2 trifoliate-1), index of agreement and Pearson’s correlation coefficient. Sample size varied between cultivars, water regimes and evaluation methods. It is more appropriate to use the leaf area provided by ImageJ® as real for comparison purposes in generating models to estimate leaf area from linear measurements, in common bean. The general equation LA = 1.092L1.945 can be used in the tested regimes without accuracy losses.