Abstract The article aims to identify stage of the food supply chain (FSC) has the greatest food loss and waste (FLW), the factors that influence and economic, social and environmental impacts in Latin America countries. We carried out a scoping review of observational studies, case reports and interventional studies in January 2023. Searches were performed in scientific databases and hand-searching of reference lists. Data on the included studies were summarized with narrative synthesis. In total 16 articles met the inclusion criteria. The greatest FLW occur in the early and middle stages of the FSC, mainly during storage. The main causes were connected to financial, managerial and operational limitations related in harvesting techniques, storage and cooling facilities, infrastructure and marketing systems. Food waste (FW) is also a result of lack of appropriate storage facilities and efficient transport systems, market fluctuations and systems. Only one study presented results on the environmental impact of FW. There is a higher occurrence of food loss, characterized by decrease in the quantity and quality of food in the first three stages of FSC.

Resumo O objetivo do artigo é identificar etapa da cadeia de abastecimento de alimentos (CAA) com maior perda e desperdício de alimentos (PDA), os fatores que influenciam e os impactos econômicos, sociais e ambientais nos países da América Latina. Realizamos revisão de escopo de estudos observacionais, relatos de caso e estudos intervencionais em janeiro de 2023. As buscas foram realizadas em bases de dados científicas e busca manual de listas de referências. Os dados dos estudos incluídos foram resumidos com síntese narrativa. No total, 16 artigos atenderam aos critérios de elegibilidade. As maiores PDA ocorrem nas fases inicial e intermediária do CAA, principalmente durante o armazenamento. Principais causas das perdas eram financeiras, gerenciais e operacionais relacionadas a técnicas de colheita, instalações de armazenamento e resfriamento, infraestrutura e sistemas de comercialização. Desperdício é resultado da falta de instalações de armazenamento adequadas e sistemas de transporte eficientes, flutuações de mercado e de sistemas. Um estudo apresentou resultados sobre o impacto ambiental das perdas. Há maior ocorrência de perdas alimentares, caracterizadas pela diminuição da quantidade e qualidade dos alimentos nas etapas iniciais da CAA.

Resumo O objetivo do artigo é identificar etapa da cadeia de abastecimento de alimentos (CAA) com maior perda e desperdício de alimentos (PDA), os fatores que influenciam e os impactos econômicos, sociais e ambientais nos países da América Latina. Realizamos revisão de escopo de estudos observacionais, relatos de caso e estudos intervencionais em janeiro de 2023. As buscas foram realizadas em bases de dados científicas e busca manual de listas de referências. Os dados dos estudos incluídos foram resumidos com síntese narrativa. No total, 16 artigos atenderam aos critérios de elegibilidade. As maiores PDA ocorrem nas fases inicial e intermediária do CAA, principalmente durante o armazenamento. Principais causas das perdas eram financeiras, gerenciais e operacionais relacionadas a técnicas de colheita, instalações de armazenamento e resfriamento, infraestrutura e sistemas de comercialização. Desperdício é resultado da falta de instalações de armazenamento adequadas e sistemas de transporte eficientes, flutuações de mercado e de sistemas. Um estudo apresentou resultados sobre o impacto ambiental das perdas. Há maior ocorrência de perdas alimentares, caracterizadas pela diminuição da quantidade e qualidade dos alimentos nas etapas iniciais da CAA. CAA (CAA PDA, , (PDA) econômicos Latina observacionais 2023 referências narrativa total 1 elegibilidade financeiras colheita resfriamento comercialização eficientes alimentares (PDA 202 20 2

Abstract The article aims to identify stage of the food supply chain (FSC) has the greatest food loss and waste (FLW), the factors that influence and economic, social and environmental impacts in Latin America countries. We carried out a scoping review of observational studies, case reports and interventional studies in January 2023. Searches were performed in scientific databases and hand-searching of reference lists. Data on the included studies were summarized with narrative synthesis. In total 16 articles met the inclusion criteria. The greatest FLW occur in the early and middle stages of the FSC, mainly during storage. The main causes were connected to financial, managerial and operational limitations related in harvesting techniques, storage and cooling facilities, infrastructure and marketing systems. Food waste (FW) is also a result of lack of appropriate storage facilities and efficient transport systems, market fluctuations and systems. Only one study presented results on the environmental impact of FW. There is a higher occurrence of food loss, characterized by decrease in the quantity and quality of food in the first three stages of FSC. FSC (FSC FLW, , (FLW) economic countries 2023 handsearching hand searching lists synthesis 1 criteria financial techniques systems FW (FW (FLW 202 20 2

Abstract This study investigated the impact of ‘storage condition’ and ‘period of storage’ on selected physico-mechanical properties and fracture reliability of a resin-based composite (RBC). Specimens, prepared from a nanofilled RBC (Filtek Z350 XT; 3M ESPE), underwent tests for degree of conversion (DC), flexural strength (σ), flexural modulus (E), and hardness. The specimens were initially grouped into dry storage at 37°C or wet storage in distilled water at 37°C. Subsequently, they were further divided into four subgroups based on the period of storage: 6, 24, 72, or 168 hours. Specimens tested immediately after preparation served as control. Data analysis employed two-way ANOVA and Weibull analysis (α = 5%). Compared to the control, an increase in DC was observed only after 72 hours of dry storage; σ showed higher values after both dry and wet storage, regardless of the storage period (except for the group wet-stored for 168 hours); E increased with dry storage for at least 24 hours or wet storage for 72 hours; and hardness increased after dry storage for at least 24 hours or wet storage for up to 72 hours. The Weibull modulus remained unchanged under any of the distinct storage conditions. Dry storage resulted in greater characteristic strength than the control, whereas wet storage contributed to higher strength values only at shorter periods (up to 24 hours). Overall, the inherent properties of RBCs with a similar composition to that tested in this study may change with varying storage conditions and periods. condition physicomechanical physico mechanical resinbased resin RBC. . (RBC) Filtek Z Z35 XT M ESPE, ESPE , ESPE) DC, (DC) σ, (σ) E, (E) 37C C 37 Subsequently 6 16 control twoway two way α 5%. 5 5% 5%) 7 except wetstored stored hours) 2 Overall (RBC Z3 (DC (σ (E 3 1

RESUMO Objetivos: identificar quais foram as estratégias presentes na literatura para ampliação da cobertura vacinal em crianças no Brasil. Se justifica principalmente pelo cenário atual de queda de coberturas vacinais. Métodos: revisão sistemática de literatura. A busca foi realizada nas bases de dados Pubmed (MEDLINE), Embase e Scopus, seguindo as diretrizes PRISMA. Resultados: inicialmente, retornaram 4.824 resultados. Ao final, foram incluídos 6 estudos para síntese narrativa por meio da metodologia SWiM. Destes, 50% abordaram estudos relacionados ao Programa Bolsa Família (PBF). Os demais exploraram estratégias de abordagem direta aos pais, Monitoramento Rápido de Vacinação (MRV) e Programa de Agentes Comunitários de Saúde (PACS). O PBF não garantiu o cumprimento da condicionalidade de manter a vacinação em dia. O MRV e PACS são estratégias eficazes, especialmente porque permitem a busca ativa de faltosos. Conclusões: conclui-se que são necessárias mais publicações sobre estratégias para aumentar a cobertura vacinal em crianças no Brasil. Objetivos Brasil vacinais Métodos MEDLINE, MEDLINE , (MEDLINE) Scopus PRISMA Resultados inicialmente 4824 4 824 4.82 resultados final SWiM Destes 50 PBF. . (PBF) pais (MRV PACS. (PACS) dia eficazes faltosos Conclusões concluise conclui se (MEDLINE 482 82 4.8 5 (PBF (PACS 48 8 4.

ABSTRACT Objectives: to identify the strategies found in the literature for increasing vaccination coverage among children in Brazil. It is justified mainly by the current scenario of falling vaccination coverage. Methods: systematic literature review. The search was carried out in the Pubmed (MEDLINE), Embase and Scopus databases, following the PRISMA guidelines. Results: initially, 4,824 results were returned. In the end, 6 studies were included for narrative synthesis using the SWiM methodology. Of these, 50% dealt with studies related to the Bolsa Família Program (PBF). The others explored strategies for approaching parents directly, Rapid Vaccination Monitoring (MRV) and the Community Health Agents Program (PACS). The PBF did not guarantee compliance with the conditionality of keeping vaccinations up to date. The MRV and PACS are effective strategies, especially because they allow active search for absentees. Conclusions: we conclude that more publications are needed on strategies to increase vaccination coverage among children in Brazil. Objectives Brazil Methods review MEDLINE, MEDLINE , (MEDLINE) databases guidelines Results initially 4824 4 824 4,82 returned end methodology these 50 PBF. . (PBF) directly (MRV PACS. (PACS) date absentees Conclusions (MEDLINE 482 82 4,8 5 (PBF (PACS 48 8 4,

RESUMEN Objetivos: identificar las estrategias encontradas en la literatura para aumentar la cobertura de vacunación infantil en Brasil. Se justifica principalmente por el escenario actual de caída de la cobertura de vacunación. Métodos: revisión sistemática de la literatura. La búsqueda se realizó en las bases de datos Pubmed (MEDLINE), Embase y Scopus, siguiendo las directrices PRISMA. Resultados: inicialmente se obtuvieron 4.824 resultados. Finalmente, se incluyeron 6 estudios para la síntesis narrativa mediante la metodología SWiM. De ellos, el 50% se referían a estudios relacionados con el Programa Bolsa Família (PBF). Los demás exploraban estrategias de aproximación directa a los padres, el Seguimiento Rápido de la Vacunación (MRV) y el Programa de Agentes Comunitarios de Salud (PACS). El PBF no garantizó el cumplimiento de la condicionalidad de mantener las vacunas al día. El MRV y el PACS son estrategias eficaces, sobre todo porque permiten la búsqueda activa de ausentes. Conclusiones: se concluye que son necesarias más publicaciones sobre estrategias para aumentar la cobertura de vacunación infantil en Brasil. Objetivos Brasil Métodos MEDLINE, MEDLINE , (MEDLINE) Scopus PRISMA Resultados 4824 4 824 4.82 resultados Finalmente SWiM ellos 50 PBF. . (PBF) padres (MRV PACS. (PACS) día eficaces ausentes Conclusiones (MEDLINE 482 82 4.8 5 (PBF (PACS 48 8 4.

ABSTRACT Objective: The aim of the present study was to evaluate the prevalence of total cholesterol (TC) and low-density lipoprotein (LDL) alterations in children and adolescents in Brazil. Materials and methods: A systematic review and meta-analysis of prevalence. The search for articles was carried out in the databases: Medline (PubMed), Embase, Scientific Electronic Library Online (SciELO), Latin American and Caribbean Literature in Health Sciences (Lilacs). The meta-analysis was performed using the random effects model. The I² test was used to identify heterogeneity. Results: The present metanalysis revealed a significant prevalence of altered lipid profile in children and adolescents in Brazil. Regarding lipoprotein fractions, the prevalence of altered TC level was 27.47% (95% CI 24.36-30.82), and a smaller prevalence was observed for LDL cholesterol (19.29% – 95% CI 15.21-24.16). The models revealed high heterogeneity (I² = 99%; p < 0.01), however the precise source of it was not identified; although type of school, age group, year and the region of Brazil appeared to influence the estimations of altered lipid profiles. Conclusion: An important prevalence of lipid alterations was observed among Brazilian children and adolescents. Those results reinforce the importance of knowing the lipid profile of children and adolescents to perform early interventions for this public. Objective (TC lowdensity low density (LDL methods metaanalysis meta analysis databases PubMed, PubMed , (PubMed) Embase SciELO, SciELO (SciELO) Lilacs. Lilacs . (Lilacs) model I Results fractions 2747 27 47 27.47 95 (95 24.3630.82, 24363082 24.36 30.82 24 36 30 82 24.36-30.82) 19.29% 1929 19 29 (19.29 15.2124.16. 15212416 15.21 24.16 15 21 16 15.21-24.16) (I 99% 99 0.01, 001 0.01 0 01 0.01) identified school group profiles Conclusion public (PubMed (SciELO (Lilacs 274 2 4 27.4 9 (9 3630 24.3630.82 2436308 2436 24.3 3082 30.8 3 8 24.36-30.82 19.29 192 1 (19.2 2124 15.2124.16 1521241 1521 15.2 2416 24.1 15.21-24.16 00 0.0 27. ( 363 24.3630.8 243630 243 24. 308 30. 24.36-30.8 19.2 (19. 212 15.2124.1 152124 152 15. 241 15.21-24.1 0. 24.3630. 24363 24.36-30. 19. (19 15.2124. 15212 15.21-24. 24.3630 24.36-30 (1 15.2124 15.21-24 24.363 24.36-3 15.212 15.21-2 24.36- 15.21-

Resumo O objetivo é examinar sistematicamente as evidências científicas que associam fatores ambientais (meio ambiente, meio ambiente social, planejamento ambiental e distribuição espacial da população) com o excessivo ganho de peso gestacional. Trata-se de uma revisão sistemática e meta-análise realizada seguindo os passos recomendados pelo Preferred Reporting Items for Systematic Reviews and Meta-Analyzes. Os estudos de incluídos basearam-se nos seguintes critérios PECO: P-gestantes, E-fatores ambientais, O-ganho de peso gestacional. O procedimento de pesquisa foi conduzido nas bases de dados EMBASE, Web of Science, Cinahl, LILACS e MEDLINE (PubMed). A relação entre os fatores socioeconômicos da microrregião de residência e o ganho de peso gestacional foi evidenciada pela ligação entre a residência em bairros de alta pobreza e o ganho de peso gestacional inadequado. Este estudo revelou a maior prevalência de ganho de peso gestacional excessivo em gestantes que vivem em áreas urbanas. Fatores ambientais da área de residência das gestantes implicados no ganho de peso gestacional excessivo. As descobertas desse estudo podem, portanto, contribuir para o desenvolvimento de políticas públicas para evitar o ganho de peso gestacional inadequado.

Abstract The aim is, systematically examine the scientific evidences that associated environmental factors (environment, social environment, environmental planning and spatial population distribution) with the excessive gestational weight gain. A meta-analysis and systematic review carried out as per the Cochrane Handbook recommendations and following the steps recommended by the Preferred Reporting Items for Systematic Reviews and Meta-Analyzes. The inclusion studies were done with the following PECO criteria: P-pregnant women, E-environmental factors, O-weight gain. The search procedure was conducted on the databases EMBASE, Web of Science, Cinahl, LILACS and MEDLINE (PubMed). The relationship between the socioeconomic factors of the micro-region of residence and gestational weight gain was evidenced by the linkage between residing in high-poverty neighborhoods and inadequate gestational weight gain. This study revealed the higher prevalence of excessive gestational weight gain in pregnant women those lives in urban areas. Environmental factors of the pregnant women’s residence area implicated in the excessive gestational weight gain. Our findings can therefore contribute to the development of public policies to prevent inadequate gestational weight gain.

Resumo O objetivo é examinar sistematicamente as evidências científicas que associam fatores ambientais (meio ambiente, meio ambiente social, planejamento ambiental e distribuição espacial da população) com o excessivo ganho de peso gestacional. Trata-se de uma revisão sistemática e meta-análise realizada seguindo os passos recomendados pelo Preferred Reporting Items for Systematic Reviews and Meta-Analyzes. Os estudos de incluídos basearam-se nos seguintes critérios PECO: P-gestantes, E-fatores ambientais, O-ganho de peso gestacional. O procedimento de pesquisa foi conduzido nas bases de dados EMBASE, Web of Science, Cinahl, LILACS e MEDLINE (PubMed). A relação entre os fatores socioeconômicos da microrregião de residência e o ganho de peso gestacional foi evidenciada pela ligação entre a residência em bairros de alta pobreza e o ganho de peso gestacional inadequado. Este estudo revelou a maior prevalência de ganho de peso gestacional excessivo em gestantes que vivem em áreas urbanas. Fatores ambientais da área de residência das gestantes implicados no ganho de peso gestacional excessivo. As descobertas desse estudo podem, portanto, contribuir para o desenvolvimento de políticas públicas para evitar o ganho de peso gestacional inadequado.

Abstract The aim is, systematically examine the scientific evidences that associated environmental factors (environment, social environment, environmental planning and spatial population distribution) with the excessive gestational weight gain. A meta-analysis and systematic review carried out as per the Cochrane Handbook recommendations and following the steps recommended by the Preferred Reporting Items for Systematic Reviews and Meta-Analyzes. The inclusion studies were done with the following PECO criteria: P-pregnant women, E-environmental factors, O-weight gain. The search procedure was conducted on the databases EMBASE, Web of Science, Cinahl, LILACS and MEDLINE (PubMed). The relationship between the socioeconomic factors of the micro-region of residence and gestational weight gain was evidenced by the linkage between residing in high-poverty neighborhoods and inadequate gestational weight gain. This study revealed the higher prevalence of excessive gestational weight gain in pregnant women those lives in urban areas. Environmental factors of the pregnant women’s residence area implicated in the excessive gestational weight gain. Our findings can therefore contribute to the development of public policies to prevent inadequate gestational weight gain.

RESUMO A rebrota do capim pode reduzir a massa radicular, o que atrasa o restabelecimento e os períodos de pastejo, por reduzir a absorção de nutrientes do solo pelas plantas. Objetivou-se identificar o intervalo adequado de colheita e adubação nitrogenada para Urochloa brizantha cv. BRS Piatã e Megathyrsus maximus cv. BRS Quênia, e se a flexibilidade do momento de adubação está relacionada ao acúmulo de carboidratos solúveis em água (CS) e nitrogênio nas raízes. O experimento foi conduzido em casa-de-vegetação, em delineamento inteiramente casualizado, com cinco tratamentos [adubação nitrogenada após a colheita: 0, 2, 4, 6 e 8 dias] e dez repetições. O tempo da adubação reduziu linearmente a massa de forragem e de raízes do capim BRS Piatã, mas não afetou o BRS Quênia. Observou-se resposta quadrática sobre a concentração de CS e amido na raiz do capim BRS Piatã, diminuindo da colheita até o dia 2 e aumentando até o dia 8. Porém, com o atraso na adubação, o nitrogênio na raiz reduziu linearmente. A época de adubação nitrogenada afeta de forma quadrática a concentração de CS em raízes de capim BRS Quênia. A adubação nitrogenada do capim BRS Piatã logo após a colheita melhora a massa de forragem e de raízes, CS e reservas de nitrogênio, enquanto há maior flexibilidade quanto ao momento de realizar a adubação nitrogenada para o BRS Quênia. O intervalo entre a colheita e a adubação nitrogenada é mais dependente da massa radicular, que afeta o acúmulo de nitrogênio nas raízes. radicular pastejo plantas Objetivouse Objetivou cv Quênia (CS casadevegetação, casadevegetação casa vegetação, vegetação casa-de-vegetação casualizado 0 4 dias repetições Observouse Observou Porém

ABSTRACT Grass regrowth can reduce root mass, delaying reestablishment and grazing periods by reducing the nutrient absorption from the soil by plants. This study aimed to determine the optimal intervals for harvest and nitrogen fertilization in Urochloa brizantha cv. BRS Piatã and Megathyrsus maximus cv. BRS Quênia, as well as to investigate whether the flexibility of the fertilization time is related to the accumulation of water-soluble carbohydrates (WSC) and nitrogen in the roots. The experiment was conducted in a greenhouse, using a completely randomized design, with five treatments (nitrogen fertilization after harvest: 0, 2, 4, 6 and 8 days) and ten replicates. The nitrogen fertilization time linearly reduced the forage and root mass for the BRS Piatã, but had no effect on the BRS Quênia guinea grass. For the BRS Piatã, the WSC and starch concentrations in the roots showed a quadratic response, decreasing from harvest to day 2 and increasing until the day 8. However, the delayed fertilization led to a linear reduction in the root nitrogen content. The nitrogen fertilization time had a quadratic effect on the WSC concentration for the BRS Quênia roots. For the BRS Piatã, the nitrogen fertilization immediately after harvest improves the forage and root masses, WSC and nitrogen reserves. In contrast, the BRS Quênia exhibited a greater flexibility, concerning the nitrogen fertilization time. The interval between harvest and nitrogen fertilization is primarily depended on root mass, which influences the nitrogen accumulation in the roots. plants cv watersoluble water soluble (WSC greenhouse design 0 4 days replicates grass response However content masses reserves contrast

Abstract This study aimed to assess whether genetic polymorphisms in MTR and MTRR are potential biomarkers of oral health-related quality of life (OHRQoL) in children with caries. A cross-sectional study was designed wherein pairs of parents/caregivers and children (aged two–five years) were selected. Clinical examination was used to detect dental caries, which were classified as low-severity and high-severity caries. The Early Childhood Oral Health Impact Scale (ECOHIS) questionnaire was used to assess OHRQoL. Genomic DNA extracted from the saliva was used to analyze two missense genetic polymorphisms: MTR (rs1805087) and MTRR (rs1801394). Mann–Whitney non-parametric test was used to analyze candidate genes with OHRQoL scale and domain, with a significance level of p≤0.05. MTR (rs1805087) was found associated (p = 0.05) with children’s OHRQoL subscale scores in the dominant model (GG + AG). Genetic polymorphisms in MTR may increase the risk of poor OHRQoL in children with caries. Further studies are needed to investigate genetics, molecular factors, and OHRQoL. healthrelated health related (OHRQoL caries crosssectional cross sectional parentscaregivers parents caregivers aged twofive five years selected lowseverity low severity highseverity high ECOHIS (ECOHIS rs1805087 rs (rs1805087 rs1801394. rs1801394 . (rs1801394) MannWhitney Mann Whitney nonparametric non parametric domain p005 p 0 05 p≤0.05 0.05 005 childrens s GG AG. AG AG) genetics factors rs180508 (rs180508 rs180139 (rs1801394 p00 p≤0.0 0.0 00 rs18050 (rs18050 rs18013 (rs180139 p0 p≤0. 0. rs1805 (rs1805 rs1801 (rs18013 p≤0 rs180 (rs180 (rs1801 p≤ rs18 (rs18 rs1 (rs1 (rs

Abstract: This cross-sectional study aimed to assess if genetic polymorphisms in TNF- α are associated with a negative impact on Oral Health-Related Quality of Life (OHRQoL) in children with dental caries. A total of 307 pairs of parents/caregivers and children aged two to five years were selected. The children were clinically evaluated and classified according to caries experience and severity of active caries. The Brazilian Portuguese version of the Early Childhood Oral Health Impact Scale (ECOHIS) was used to assess OHRQoL. Genotyping analysis of genetic polymorphisms in TNF- α (rs1799724, rs1799964, and rs1800629) was performed using real-time polymerase chain reaction. In the recessive model, children with the CC genotype of TNF-α (rs1799964) had a significantly high chance of poor OHRQoL in the symptom domain (pain), in both the caries experience (p = 0.045) and the high-severity active caries phenotypes (p = 0.033) (Mann-Whitney U test). It was concluded that genetic polymorphisms in TNF-α are associated with OHRQoL related to the symptom domain (pain), suggesting that TNF-α could be used as a potential biomarker for OHRQoL. Understanding the genetic aspects associated with OHRQoL will allow the early identification of patients with OHRQoL disparities and provide personalized healthcare.

Abstract The aim of this work was to use the Washburn capillary rise method to evaluate changes in surface energy promoted by the insertion of CuO in a 58S glass and its implication in bioactivity. The presence of CuO decreased the surface wettability by decreasing the Lewis acid-base component γSAB and increasing the Lifshitz-van der Waals component γSLW. The insertion of CuO also diminished the value of the electron donor parameter γS-; i.e., the number of negative groups. This was accompanied by a nonuniform apatite formation on the surface, likely because the presence of CuO-rich regions with lower electron donor values impaired the adsorption of Ca2+, preventing uniform apatite precipitation. Therefore, surface energy was extremely sensitive to small physical and chemical changes in the glass structure and the behavior of the electron donor parameter could be used as an adequate probe to predict glass bioactivity.

RESUMO O objetivo foi determinar os parâmetros estruturais e de valor nutritivo do Panicum maximum cv. BRS Zuri sob sistema sombreado por eucalipto, nas estações chuvosa e seca. No começo de cada estação, os tratamentos (níveis de fertilização foliar de 0, 3, 6 and 9 L ha-1) foram aplicados e as avaliações realizadas aos 28, 56 e 84 dias de crescimento. Os tratamentos não afetaram significativamente (p ≥ 0.05) os parâmetros avaliados. Os sistemas (sombreado e a pleno sol) e estações não modificaram (p ≥ 0.05) as massas de forragem e de raízes. O conteúdo de proteína bruta foi maior (p ≤ 0.05) na estação seca. Altura, massas de folhas, colmos e material morto, conteúdos de fibra em detergente ácido e neutro, e digestibilidade in vitro da matéria seca foram significativamente afetados (p ≤ 0.05) pela interação sistema x estação. Os dias de crescimento não afetaram (p ≥ 0.05) a massa de forragem. A massa de material morto diminuiu (p ≤ 0.05) com os intervalos de avaliação. Os outros parâmetros foram afetados (p ≤ 0.05) pela interação sistema x dias de crescimento. Baseado nos resultados observados, as massas de forragem e raízes mostram que o cv. BRS Zuri é adaptado ao sombreamento proposto pelas condições experimentais. Essas massas, somadas ao conteúdo de proteína bruta indica que o capim é adaptado a baixas precipitações, inerentes a estação seca; a fertilização foliar aplicada no começo das estações não afeta os parâmetros estruturais e de valor nutritivo do capim BRS Zuri.

ABSTRACT The objective was to determine the structural and nutritive parameters for Panicum maximum cv. BRS Zuri under a Eucalyptus shading system, in rainy and dry seasons. At the beginning of each season, the treatments (foliar fertilization levels of 0, 3, 6 and 9 L ha-1) were applied and evaluated at 28, 56, and 84 growing days. The treatments did not affect significantly (p ≥ 0.05) the evaluated parameters. The systems (shading and full sun) and seasons did not change (p ≥ 0.05) forage and root masses. The leaf crude protein content was higher (p ≤ 0.05) in the dry season. Height, leaf mass, stem and dead material, neutral and acid detergent fiber contents, and in vitro dry matter digestibility were affected (p ≤ 0.05) by the system x season. The growing days did not affect (p ≥ 0.05) forage mass. The mass of dead material decreased (p ≤ 0.05) over the evaluated intervals. The other parameters were affected (p ≤ 0.05) by system × growing days. Based on the results, the forage and root masses show that the cv. BRS Zuri is adapted to the shading in the proposed experimental conditions. These masses added to the crude protein content indicate adaptation to low rainfall, inherent to the dry season, while foliar fertilization applied at the beginning of seasons did not affect the structural and nutritive parameters of BRS Zuri grass.

Abstract The Azospirillum genus includes plant growth-promoting bacteria found in different soil regions worldwide. When associated with plant roots these bacteria help augment productivity by increasing both the aerial and root portions. These benefits derive from excretion of growth phytonutrients, especially auxins. Use of Azospirillum spp. can help to bridge the gap between productivity and sustainability since inoculants based on this microorganism can reduce use of nitrogen fertilizers without affecting productivity, and generate savings and greater profitability. Inoculation of Azospirillum spp. strains with forage grasses can result in greater forage mass gains and less need for nitrogen fertilizer, improving pasture production system sustainability. Co-inoculation with other strains such as Bradyrhizobium sp. apparently potentiates growth promotion. Proper application methods must be followed for these growth-promoting bacteria to be effective. Growth promotion in response to Azospirillum has been described in grasses such as sugarcane, maize and forages, but further research is needed under different conditions to support adoption by producers. Application of bacterial inoculates can increase competitiveness vis-à-vis conventional agriculture methods. Inoculation of grasses in livestock systems can raise forage mass production, mitigate degradation risks and improve productive indices.

Resumen El Azospirillum es un género de bacterias promotoras del crecimiento vegetal, encontrado en suelos de diferentes regiones del globo terrestre. Estas bacterias cuando se asocian a raíces de plantas, ayudan en la producción y productividad del cultivo, actuando en el aumento de parte aérea y sistema radicular. Estos beneficios se derivan de la excreción de los fitonutrientes de crecimiento, especialmente las auxinas. En las gramíneas forrajeras, la inoculación de estas cepas puede proporcionar mayores ganancias de masa de forraje con menores dosis de N-fertilizante, garantizando la sostenibilidad del sistema de producción del pasto. El uso de Azospirillum spp., en gramíneas debe llenar un vacío entre la productividad y la sostenibilidad. La promoción del crecimiento proporcionado por Azospirillum se ha descrito en varias gramíneas como la caña de azúcar, el maíz y plantas forrajeras, pero se deben realizar más estudios en diferentes condiciones para diseminar y consolidar su adopción entre los productores. La adopción de la inoculación de esta bacteria puede aumentar la competitividad de los productos agrícolas y ser un diferencial frente a la producción adoptada en la agricultura convencional. En la ganadería la inoculación en pastizales puede aumentar la producción de masa de forraje, y mitigar los riesgos de degradación y mejorar los índices productivos de ese sector.

Resumo Objetivou-se avaliar as características morfogênicas e estruturais do capim-piatã submetido à lotação intermitente e adubado com fontes de fósforo de diferentes solubilidades e adubação nitrogenada. Os tratamentos foram: controle (sem aplicação de adubo fosfatado); fonte de fósforo de lenta solubilidade (FNR); fonte de fósforo de rápida solubilidade (FSS) e fonte de fósforo de solubilidade mista (FSM), associados ou não à adubação nitrogenada. Foram realizadas medições de perfilhos pré-demarcados para avaliação das características estruturais e morfogênicas das plantas. Os dados foram analisados segundo um delineamento em blocos casualizados, em arranjo fatorial 4 x 2, dentro de cada estação do ano. As médias por quadrados mínimos dos tratamentos de adubação fosfatada foram comparadas com o tratamento controle pelo teste de Dunnet, e entre si pelo teste “t” e as médias de uso ou não de adubação nitrogenada foram comparadas entre si pelo teste “t” a 5% de significância. As fontes que contém fósforo prontamente disponível, como nos tratamentos FSS e FSM, promoveram maior alongamento de folhas e colmo, bem como maior número e aparecimento de folhas, o que evidencia a importância da disponibilidade de fósforo e nitrogênio no crescimento e desenvolvimento das plantas, confirmado pelo aumento na taxa de alongamento de folhas, do aparecimento foliar e alongamento de colmo. Assim, as adubações nitrogenada e fosfatada são alternativas para a persistência e competitividade da produção animal a pasto. Em relação à fonte, o uso de fontes de fósforo com solubilidade mista fornece esse nutriente a curto, médio e longo prazo.

Abstract The objective of this study was to evaluate the morphogenic and structural characteristics of piatã grass submitted to intermittent stocking and fertilized with phosphorus sources of different solubilities and nitrogen fertilization. The treatments were: control (without phosphate fertilizer application); slow solubility phosphorus source (FNR); fast solubility phosphorus source (FSS) and mixed solubility phosphorus source (FSM), whether or not associated with nitrogen fertilization. Measurements of pre-demarcated tillers were performed to evaluate the structural and morphogenic characteristics of the plants. Data were analyzed according to a randomized block design in a 4 x 2 factorial arrangement within each season. The minimum squared means of phosphate fertilizer treatments were compared with the control treatment by Dunnet test, and among themselves by the “t” test and the means of use or not of nitrogen fertilization were compared to each other by the “t” test at 5 % of significance. Sources containing readily available phosphorus, as in the FSS and FSM treatments, promoted greater leaf and stem elongation, as well as greater number and appearance of leaves, which highlights the importance of phosphorus and nitrogen availability in plant growth and development. confirmed by the increase in leaf elongation rate, leaf appearance and stem elongation. Thus, nitrogen and phosphate fertilizers are alternatives for the persistence and competitiveness of pasture livestock production. Regarding the source, the use of phosphorus sources with mixed solubility provides this nutrient in the short, medium and long term.

Resumo O objetivo deste estudo foi investigar processos identitários de um grupo de cinco doulas, incluindo suas percepções sobre o próprio grupo, gestantes e médicos. Foram aplicadas entrevistas semiestruturadas, análise de conteúdo temática e, como referencial teórico, a Teoria da Identidade Social. Os resultados demonstraram a relevância do feminismo, ativismo social e movimento de humanização do parto para os processos identitários das participantes. Verificou-se que o grupo fornece apoio profissional e social, com sentimento de pertença e amizade. Discute-se que o ativismo, o grupo de trabalho e encontros regulares com gestantes são estratégias de mudança social, visando à transformação da assistência à saúde e relações de gênero. O estudo foi limitado pelo número de participantes, mas forneceu compreensão sobre tema pouco explorado. Futuras pesquisas poderão investigar práticas de doulas em articulação com o Sistema Único de Saúde brasileiro (SUS).

Abstract This study aimed to investigate identity-related processes among a group of five doulas, including their perceptions towards their own group, pregnant women and physicians. We administered semi-structured interviews, applied thematic content analysis and adopted Social Identity Theory as the theoretical background. Results highlighted the relevance of feminism, social activism, and the humanization of birth movement to participants’ social identity. We verified that the group provided professional and social support, through sentiments of belonging and friendship. The discussion highlights that the activism, the work group and the regular meetings with pregnant women are strategies of social change, which aim to transform health practices and gender relations. The study was limited by the number of participants, but it provided insights about a scarcely explored topic. Future research may investigate practices of doulas in articulation with the Brazilian public health system (SUS).

Resumen El objetivo de este estudio fue investigar los procesos de identidad de un grupo de cinco doulas, incluyendo percepciones sobre el propio grupo, embarazadas y médicos. Se aplicaron entrevistas semiestructuradas, análisis de contenido temático y, como referencial teórico, la Teoría de Identidad Social. Los resultados demostraron relevancia de feminismo, activismo social y movimiento de humanización del parto en los procesos de identidad de las participantes. Se verificó que el grupo proporciona apoyo profesional y social, con sentimiento de pertenencia y amistad. Se discute que activismo, grupo de trabajo y encuentros regulares con embarazadas son estrategias de cambios sociales, buscando transformaciones en asistencia a la salud y relaciones de género. El estudio fue limitado por el número de participantes, pero proporcionó amplia comprensión sobre el tema, todavía poco explorado. Futuros estudios podrán investigar prácticas de doulas en articulación con el Sistema Único de Salud brasileño (SUS).