Resumo O objetivo deste artigo é identificar a prevalência e avaliar os fatores associados aos comportamentos extremos para perda de peso em adolescentes do Nordeste brasileiro. Estudo transversal com 2.439 adolescentes da Amostra 2 (2015) da Pesquisa Nacional de Saúde do Escolar. Os comportamentos extremos para perda de peso (desfecho) e as variáveis independentes foram avaliadas por meio de um questionário eletrônico autoaplicável. A análise estatística foi realizada seguindo um modelo conceitual hierárquico. A prevalência de comportamentos extremos para perda de peso na amostra foi de 12,1%. Entre os fatores que mostraram associação significativa com o desfecho, destacam-se a situação administrativa da escola privada (RP = 0,62; IC = 0,46-0,84), ser vítima bullying relacionado à aparência corporal e pelos demais motivos (RP = 1,62; IC = 1,19-2,20), ser forçado a ter relação sexual (RP = 2,65; IC = 1,90-3,69), ter insônia (RP = 1,84; IC = 1,43-2,37) e se autoperceber como gordo ou muito gordo (RP = 1,90; IC = 1,50-2,42). Prevalência moderada de comportamentos extremos para perda de peso foi identificada entre os adolescentes. Os fatores socioeconômicos, de exposição à violência, de saúde mental e da imagem corporal se associaram à adoção de tais comportamentos.

Abstract The objective of this article is to identify the prevalence and evaluate the factors associated with extreme weight loss behaviors among adolescents of Northeastern Brazil. Cross-sectional study with 2,439 adolescents from Sample 2 (2015) of the National School-based Health Survey. Extreme weight loss behaviors, such as self-induced vomiting, laxative use and use of medicines or formulas (outcome) and independent variables were evaluated using a self-administered electronic questionnaire. The statistical analysis was performed following a hierarchical conceptual model. The prevalence of extreme weight loss behaviors in the sample was 12.1%. Among the factors that showed significant association with the outcome, we emphasize the administration model of the private school (PR = 0.62; CI = 0.46-0.84), bullying related to body appearance and for other reasons (PR = 1.62; CI = 1.19-2.20), forced sexual intercourse (PR = 2.65; CI = 1.90-3.69), insomnia (PR = 1.84; CI = 1.43-2.37), and be perceived as fat or very fat (PR = 1.90; CI = 1.50-2.42). Moderate prevalence of extreme weight loss behaviors was identified among adolescents. Socioeconomic factors, exposure to violence, mental health, and body image were associated with the adoption of these behaviors.

ABSTRACT The themes of managerial style and interpersonal conflicts in a business context have been discussed, but their relationship, especially in family organizations, has seen little or no attention. A quantitative, descriptive, inferential, and cross-sectional study was undertaken to address this gap. Data were gathered from 410 employees of small and medium sized Brazilian family businesses operating in the state of Rio Grande do Sul. Participants answered a questionnaire consisting of two scales: (i) the Management Style Assessment Scale and (ii) the Supervisor-Subordinate Conflict Scale. In the family businesses in question, three managerial styles (situational, task, and relationship) were identified along with their contribution to conflicts. The ‘relationship’ style stood out as mitigating such events. These findings may provide insights regarding the theory of management styles and conflicts in family businesses and could offer practical management strategies for such contexts.

RESUMO Os temas que referem estilo gerencial e conflitos interpessoais no contexto empresarial têm sido discutidos, mas sua relação, principalmente em organizações familiares, tem recebido pouca ou nenhuma atenção. Assim sendo, um estudo quantitativo, descritivo, inferencial e transversal do tipo survey foi realizado para suprir essa lacuna. Foram coletados dados de 410 empregados de pequenas e médias empresas familiares brasileiras que atuam no estado do Rio Grande do Sul. Os participantes responderam a um questionário composto por questões sociodemográficas e duas escalas: (i) a Escala de Avaliação do Estilo de Gestão e (ii) a Escala de Conflito Supervisor-Subordinado. Como resultados principais. identificaram-se, nas empresas familiares em questão, três estilos gerenciais (situacional, tarefa e relacionamento) e suas contribuições para os conflitos. O estilo ‘relacionamento’ destacou-se por diminuir tais eventos. Esses achados podem fornecer insights sobre a teoria dos estilos de gestão e conflitos em empresas familiares e podem oferecer estratégias práticas de gestão para tais contextos.

Abstract The objective of this article is to identify the prevalence and evaluate the factors associated with extreme weight loss behaviors among adolescents of Northeastern Brazil. Cross-sectional study with 2,439 adolescents from Sample 2 (2015) of the National School-based Health Survey. Extreme weight loss behaviors, such as self-induced vomiting, laxative use and use of medicines or formulas (outcome) and independent variables were evaluated using a self-administered electronic questionnaire. The statistical analysis was performed following a hierarchical conceptual model. The prevalence of extreme weight loss behaviors in the sample was 12.1%. Among the factors that showed significant association with the outcome, we emphasize the administration model of the private school (PR = 0.62; CI = 0.46-0.84), bullying related to body appearance and for other reasons (PR = 1.62; CI = 1.19-2.20), forced sexual intercourse (PR = 2.65; CI = 1.90-3.69), insomnia (PR = 1.84; CI = 1.43-2.37), and be perceived as fat or very fat (PR = 1.90; CI = 1.50-2.42). Moderate prevalence of extreme weight loss behaviors was identified among adolescents. Socioeconomic factors, exposure to violence, mental health, and body image were associated with the adoption of these behaviors.

Resumo O objetivo deste artigo é identificar a prevalência e avaliar os fatores associados aos comportamentos extremos para perda de peso em adolescentes do Nordeste brasileiro. Estudo transversal com 2.439 adolescentes da Amostra 2 (2015) da Pesquisa Nacional de Saúde do Escolar. Os comportamentos extremos para perda de peso (desfecho) e as variáveis independentes foram avaliadas por meio de um questionário eletrônico autoaplicável. A análise estatística foi realizada seguindo um modelo conceitual hierárquico. A prevalência de comportamentos extremos para perda de peso na amostra foi de 12,1%. Entre os fatores que mostraram associação significativa com o desfecho, destacam-se a situação administrativa da escola privada (RP = 0,62; IC = 0,46-0,84), ser vítima bullying relacionado à aparência corporal e pelos demais motivos (RP = 1,62; IC = 1,19-2,20), ser forçado a ter relação sexual (RP = 2,65; IC = 1,90-3,69), ter insônia (RP = 1,84; IC = 1,43-2,37) e se autoperceber como gordo ou muito gordo (RP = 1,90; IC = 1,50-2,42). Prevalência moderada de comportamentos extremos para perda de peso foi identificada entre os adolescentes. Os fatores socioeconômicos, de exposição à violência, de saúde mental e da imagem corporal se associaram à adoção de tais comportamentos.

ABSTRACT The primates that inhabit the rainforest surrounding the city of Manaus (Amazonas, Brazil) have long been recognised as potentially important reservoirs of emerging and re-emerging infectious diseases (ERIDs). PCR amplification of filarial sequences from wild-caught Simulium oyapockense has been used to incriminate potentially important Amazon-region ERID bridge vectors by showing they had previously fed on non-human primates. The broader use of filarial parasite sequences for the incrimination of biting insects as potentially important zoonotic disease vectors is limited by a paucity of primate-derived filarial parasite reference sequences which can be matched to the PCR amplified sequences obtained from insect-vector vectors. Here we have used shotgun sequencing to obtain reference data from an adult Dipetalonema gracile parasite which was found infecting a wild pied tamarin (Saguinus bicolor) in a peripheral region of Manaus. We report the parasite´s complete mitochondrial genome (which is 13,647 base pairs in length), 894,846 base pairs of its Wolbachia genome and 6,426 base pairs of its ribosomal DNA locus (spanning from the start of its 18S subunit to the end of its 28S subunit). Despite being critically endangered, S. bicolor is commonly encountered around the periphery of Manaus and in urban forest fragments. The reported sequences may be a useful reference tool for identifying ERID bridge vectors and potentially provide some insights into the amount and the nature of contact between primate pathogen reservoirs and the residents of Manaus.

RESUMO Os primatas que habitam a floresta tropical ao redor da cidade de Manaus (Amazonas, Brasil) há muito são reconhecidos como reservatórios potencialmente importantes de doenças infecciosas emergentes e reemergentes. Sequências de DNA de parasitas filariais detectadas por PCR em amostras de Simulium oyapockense foram usadas para demonstrar que eles haviam se alimentado anteriormente de primatas não humanos e, dessa maneira, incriminar vetores-ponte da região amazônica. O uso mais amplo de detecção de parasitas filariais para a incriminação de vetores-ponte é limitado por uma escassez de sequências referência de parasitas filarias obtidas de hospedeiros. Aqui nós usamos o sequenciamento tipo shotgun para obter dados de referência de um parasita adulto Dipetalonema gracile encontrado infectando um sauim-de-coleira, Saguinus bicolor no entorno de Manaus. Relatamos o genoma mitocondrial completo do parasita (que tem 13.647 pares de bases de comprimento), 894.846 pares de bases de seu genoma de Wolbachia e 6.426 pares de bases de seu locus de DNA ribossômico (desde o início de sua subunidade 18S até o final de sua subunidade 28S). Apesar de criticamente ameaçado, S. bicolor é comumente encontrado no entorno de Manaus e em fragmentos florestais urbanos. As sequências relatadas podem ser uma ferramenta de referência útil para identificar vetores ponte e potencialmente fornecer algumas informações sobre o contato entre reservatórios de patógenos de primatas e os moradores de Manaus.

Abstract The article is a synthesis effort to present a sub-area of sports studies in social sciences in Brazil, called Anthropology of Sportives Practices. It is an expression that articulates the uses of some notions that define the vast field of playful experiences with the contextual production of empirical data. Broad spectrum sociological models that operate notions such as games and sports are put to the test of experiments and extensions of ethnographic models. In this case, the objective is to achieve more discontinuous landscapes in which the meanings of what we define by “to play” and “to watch” - sensitives faculties that orders expressive corporealities - assume a more universal symbolic nexus than properly historical phenomena, such as games, hobbies and sports. The examination of the dialectic between watch and play allows different sportive practices, such as football and a specific Xingu wrestling, analyzed from the point of view of the category “cheers” (fans), to maintain their comparative properties in the difference.

Resumo O artigo é um esforço de síntese para apresentar uma subárea dos estudos sobre esportes nas ciências sociais no Brasil, denominada de Antropologia das Práticas Esportivas. Trata-se de descritor acadêmico que visa articular os usos de algumas noções que definem o vasto campo de experiências lúdicas com a produção contextual de dados empíricos. Modelos sociológicos de amplo espectro, que operam noções como jogo e esporte, são colocados à prova das experimentações etnográficas. Objetiva-se alcançar paisagens mais descontínuas por intermédio da relação entre duas faculdades sensíveis, jogar e olhar, constitutivas de um modelo denominado de modelo das relações. O exame da dialética entre olhar e jogar permite que fenômenos esportivizados distintos, desde a ubíqua prática do futebol a uma determinada luta corporal xinguana, ambas analisadas do ponto de vista da categoria torcer, mantenham as possibilidades analíticas comparativas na diferença.

ABSTRACT Our objective is to determine the effectiveness of a therapeutic regimen for helicobacter pylori that includes a proton pump inhibitor, doxycycline, furazolidone and bismuth in our location. We carried out a retrospective study, non-randomized, in a private hospital in Lima, Peru. Patients with biopsy and/or rapid urease test proven helicobacter pylori infection after an endoscopy, from January 2017 to October 2022 were included. They received the therapeutic regimen of the study or an alternative triple regimen with a proton pump inhibitor, amoxicillin and levofloxacin and were followed with a urea breath test within 1 to 6 months upon completion of therapy. The quadruple therapy with furazolidone obtained success in 117/122 cases (95.9%) while the triple therapy with levofloxacin only in 5/16 (31.2%) when used for 7 days and 22/38 (57.9%) when used for 10 days, a statistically significant difference with p<0.001. Conclusion: Quadruple therapy with furazolidone reached high effectiveness in our location, while triple therapy with levofloxacin was not an acceptable alternative.

RESUMEN Nuestro objetivo es determinar si el tratamiento para Helicobacter pylori (HP) con doxiciclina, furazolidona, bismuto y un inhibidor de bomba de protones mantiene su efectividad en nuestra población. Se realizó un estudio retrospectivo, no aleatorio, realizado en una clínica privada de Lima, Perú. Se obtuvo la información de la historia clínica digital. Se incluyó a pacientes con el diagnóstico de infección por HP por biopsia y/o test rápido de la ureasa, obtenidos al realizar una endoscopía entre enero 2017 a octubre 2022. Debían haber recibido el tratamiento cuádruple en estudio o un esquema triple alternativo con amoxicilina, levofloxacino e inhibidor de bomba de protones y tener una prueba de aliento para HP en el lapso de 1 a 6 meses después del tratamiento. El esquema cuádruple con furazolidona logró la erradicación en 117/122 casos (95,9%) mientras que el triple con levofloxacino en 5/16 (31,2%) cuando se usó por 7 dias y en 22/38 (57,9%) cuando se usó por 10 días, siendo las diferencias altamente significativas (p>0,001). En conclusión, el tratamiento cuádruple con furazolidona mostró alta efectividad, mientras que el triple con levofloxacino no alcanzó niveles aceptables.

ABSTRACT Colonic malacoplakia is an unusual cause of chronic diarrhea, and it may present as a consumptive disease. At the colon, it can induce ulcerative and erosive nodular lesions, that mimic other common granulomatous or infectious diseases. Diagnosis is support in biopsies showing groups of histiocytes, with typical Michaelis-Gutmann inclusions, which are positive with the Von Kossa stain. We present the case of a 55-year-old male, without associated diseases, who presented with diarrhea, weight loss and anemia, showing a very good clinical response to antibiotics.

RESUMEN La malacoplaquia del colon es una causa inusual de diarrea crónica y puede presentarse como una enfermedad consuntiva. A nivel de colon produce lesiones ulceradas y nodulares erosionadas, similares a las de otras enfermedades infecciosas o granulomatosas más comunes. El diagnostico se basa en el estudio anatomopatológico que muestra acúmulos de histiocitos en la lámina propia, en cuyo interior se observan unas inclusiones redondeadas, positivas a la tinción de Von Kossa, denominadas cuerpos de Michaelis-Gutmann. Presentamos el caso de un varón 55 años, sin otras enfermedades asociadas, que debutó con diarrea, baja ponderal y anemia, mostrando una respuesta clínica muy favorable con el uso de antibióticos.

ABSTRACT. This experiment aimed to evaluate the forage species and their effect on fruit production of the chayote crop. For this, the culture was under observation in the first ten minutes at each time, from 7:00 am to 6:00 pm, with three repetitions, in each year studied (1994, 2001, 2009 and 2016). With the exception of 2009, Trigona spinipes stingless bees were frequent and constant insects in these flowers between 8:00 am and 1:00 pm, visiting mainly male flowers for nectar collection and due to foraging behavior this stingless bee may be considered a pollinator of the chayote.

ABSTRACT Background: To analyze the temporal evolution of research on Neglected Tropical Diseases (NTDs) published by the Journal of the Brazilian Society of Tropical Medicine (JBSTM). Methods: We performed an analysis of the scientific production in JBSTM on NTDs using an advanced search, which included authors’ descriptors, title, and abstract, and by combining specific terms for each NTDs from 1991 to 2021. Data related to authors, countries of origin, institutions, and descriptors, were evaluated and analyzed over time. Bibliographic networks were constructed using VOSviewer 1.6.16. Results: The JBSTM published 4,268 scientific papers during this period. Of these 1,849 (43.3%) were related to NTDs. The number of publications on NTDs increased by approximately 2.4-fold, from 352 (total 724) during 1991-2000 to 841 (total 2,128) during 2011-2021, despite the proportional reduction (48.6% versus 39.5%). The most common singular NTDs subject of publications included Chagas disease (31.4%; 581/1,849), leishmaniasis (25.5%, 411/1,849), dengue (9.4%, 174/1,849), schistosomiasis (9.0%; 166/1,849), and leprosy (6.5%, 120/1,849), with authorship mostly from Brazil’s South and Southeast regions. Conclusions: Despite the proportional reduction in publications, JBSTM remains an important vehicle for disseminating research on NTDs during this period. There is a need to strengthen the research and subsequent publications on specific NTDs. Institutions working and publishing on NTDs in the country were concentrated in the South and Southeast regions, requiring additional investments in institutions in other regions of the country.

Abstract This study evaluated the bioactive potential of a macro-porous chitosan scaffold incorporated with calcium hydroxide (CH-Ca) and functionalized with bioactive doses of simvastatin (SV) for bone tissue regeneration. Initially, the bioactive dose of SV in osteoblastic cells (SAOS-2) was determined. For the direct contact experiment, SAOS-2 cells were plated on scaffolds to assess cell viability and osteogenic differentiation. The second assay was performed at a distance using extracts from scaffolds incubated in culture medium to assess the effect of conditioned medium on viability and osteogenic differentiation. The initial screening showed that 1 μM SV presented the best biostimulating effects, and this dose was selected for incorporation into the CH-Ca and pure chitosan (CH) scaffolds. The cells remained viable throughout the direct contact experiment, with the greatest cell density in the CH-Ca and CH-Ca-SV scaffolds because of their higher porosity. The CH-Ca-SV scaffold showed the most intense bio-stimulating effect in assays in the presence and absence of osteogenic medium, leading to an increased deposition of mineralized matrix. There was an increase in the viability of cells exposed to the extracts for CH-Ca, CH-SV, and CH-Ca-SV during the one-day period. There was an increase in ALP activity in the CH-Ca and CH-Ca-SV; however, the CH-Ca-SV scaffold resulted in an intense increase in the deposition of mineralized nodules, approximately 56.4% at 7 days and 117% at 14 days, compared with CH (control). In conclusion, functionalization of the CH-Ca scaffold with SV promoted an increase in bioactivity, presenting a promising option for bone tissue regeneration.

Abstract This conceptual ethnographic review examines wrestling practices in the Upper Xingu known as kindene that end post-funeral rituals to honor chiefs (egitsü). Organized according to an intricate system of invitations, exchanges, and formalities, in kindene the interethnic cycle of egitsü contains intense interactions between the peoples in this region. Relationships between owners, allies, and guests rooted in the kinship of the chiefs with the honored deceased determine the composition of the host teams and their opponents, resulting in a scenario of ‘mixture’ and differentiation. The dynamics of the fights separate the presentation of champions (who may potentially replace the current chiefs) from the ordinary fighters; this separation, a reflection of the production of bodies and differentiated seclusion in the families of these leaders, ensures visibility for the champions in part of a dialectical process between the public exhibition of performances and domestic confinement to produce people. This article does not analyze kindene as an epiphenomenon of the ritual (to ‘cool tensions’ or serve as an ‘escape valve’ for intra- and interethnic conflicts, notions that have guided previous work on this topic), but rather as a way to construct chieftaincy through biographies, local and regional political disputes, historical rivalries spanning generations, and transformations that have consolidated the Upper Xingu regional system.

Resumo Este artigo propõe uma revisão conceitual e etnográfica sobre a luta corporal alto-xinguana (kindene), que encerra os rituais pós-funerários em homenagens aos chefes (egitsü). Organizado segundo um intrincado sistema de convites, trocas e formalidades, o ciclo interétnico do egitsü tem na kindene seus momentos de mais intensa interação entre os povos da região. As relações entre donos, aliados e convidados, ancoradas no aparentamento dos chefes com os falecidos homenageados, determinam a formação dos times anfitriões e seus adversários, implicando um cenário de ‘mistura’ e diferenciação. A dinâmica dos combates separa a apresentação dos campeões, potenciais ‘substitutos’ dos chefes atuais, dos lutadores comuns. Tal separação, reflexo da fabricação dos corpos e reclusão diferenciada em famílias de chefes, garante visibilidade aos campeões, parte de um processo dialético entre exibição pública de performances e confinamento doméstico para produção de pessoas. Neste artigo, a kindene não será analisada como epifenômeno do ritual, ‘arrefecimento de tensões’ ou ‘válvula de escape’ para os conflitos intra e interétnicos – perspectiva que orientou trabalhos que passaram pelo tema –, mas como um modo de construção da chefia por meio de biografias, contendas políticas locais e regionais, ri

Abstract Simulating a bacterial-induced pulpitis environment in vitro may contribute to exploring mechanisms and bioactive molecules to counteract these adverse effects. Objective To investigate the chronic exposure of human dental pulp cells (HDPCs) to lipopolysaccharides (LPS) aiming to establish a cell culture protocol to simulate the impaired odontogenic potential under pulpitis conditions. Methodology HDPCs were isolated from four healthy molars of different donors and seeded in culture plates in a growth medium. After 24 h, the medium was changed to an odontogenic differentiation medium (DM) supplemented or not with E. coli LPS (0 - control, 0.1, 1, or 10 µg/mL) (n=8). The medium was renewed every two days for up to seven days, then replaced with LPS-free DM for up to 21 days. The activation of NF-κB and F-actin expression were assessed (immunofluorescence) after one and seven days. On day 7, cells were evaluated for both the gene expression (RT-qPCR) of odontogenic markers (COL1A1, ALPL, DSPP, and DMP1) and cytokines (TNF, IL1B, IL8, and IL6) and the production of reactive nitrogen (Griess) and oxygen species (Carboxy-H2DCFDA). Cell viability (alamarBlue) was evaluated weekly, and mineralization was assessed (Alizarin Red) at 14 and 21 days. Data were analyzed with ANOVA and post-hoc tests (α=5%). Results After one and seven days of exposure to LPS, NF-κB was activated in a dose-dependent fashion. LPS at 1 and 10 µg/mL concentrations down-regulated the gene expression of odontogenic markers and up-regulated cytokines. LPS at 10 µg/mL increased both the production of reactive nitrogen and oxygen species. LPS decreased cell viability seven days after the end of exposure. LPS at 1 and 10 µg/mL decreased hDPCs mineralization in a dose-dependent fashion. Conclusion The exposure to 10 µg/mL LPS for seven days creates an inflammatory environment that is able to impair by more than half the odontogenic potential of HDPCs in vitro, simulating a pulpitis-like condition.

ABSTRACT The aim was to evaluate the productive performance and nutrient export of maize intercropped with drought-tolerant forage grasses. The experimental design was a randomized blocks in a 2x2x2+1 factorial scheme (two forage grasses species – Massai and Buffel; two forage sowing methods - in the furrow and broadcast; and two forage sowing times - anticipated and simultaneous; and monoculture maize as an additional control), with three replicates. The maize+forage intercropping promoted greater competition for resources, especially water, limiting N uptake, chlorophyll synthesis, and biomass production by maize under semiarid conditions. Early sowing gave forage plants a competitive advantage, favoring forage establishment before or immediately after the sowing of maize. Thus, the simultaneous sowing of forage grasses in a semiarid environment is a more appropriate option considering the importance of high levels of chlorophyll to ensure high photosynthetic activity in maize plants and greater capacity of biomass synthesis. Massai intercropped with maize exhibits a greaterpotential for biomass production than Buffel under semiarid conditions. Maize+Buffel result in highest macronutrient export by maize, while maize+Massai result in highest macronutrient exports by total forage biomass under a semiarid environment. The choice of the forage species and its sowing time in relation to maize are the main determinants of successful intercropping systems under semiarid conditions.

RESUMO O objetivo foi avaliar o desempenho produtivo e a exportação de nutrientes do consórcio de milho com gramíneas forrageiras tolerantes ao estresse hídrico. O experimento foi delineado em blocos casualizados em esquema fatorial 2x2x2+1 (duas espécies de gramíneas forrageiras – Massai e Buffel; dois métodos de semeadura – no sulco e a lanço; e duas épocas de semeadura – antecipada e simultânea; e monocultivo de milho como um controle adicional), com três repetições. O consórcio milho+forragem promoveu maior competição por recursos, principalmente água, limitando a absorção de N, síntese de clorofila e produção de biomassa pelo milho para condições semiáridas. A semeadura precoce deu vantagem competitiva às plantas forrageiras, favorecendo seu estabelecimento antes ou imediatamente após a semeadura do milho. Assim, a semeadura simultânea de gramíneas forrageiras em ambiente semiárido é uma opção mais adequada, considerando a importância de garantir altos teores de clorofila e, consequentemente, alta atividade fotossintética nas plantas de milho para garantir a capacidade de síntese de biomassa.Massai consorciado com milho apresenta maior potencial para produção de biomassa do que Buffel em condições semiáridas.Milho+Buffel resulta em maior exportação de macronutrientes pelo milho, enquanto milho+Massai resulta em maior exportação de macronutrientes pela biomassa forrageira total em ambiente semiárido.A escolha da espécie forrageira e sua época de semeadura em relação ao milho são os principais determinantes do sucesso do consórcio no semiárido.

RESUMO Embora a fração de lixiviação (FL) seja utilizada para remover sais da zona radicular em condições de salinidade, quando inadequadamente calculada, pode diminuir a eficiência do uso da água e levar a grandes perdas de nutrientes essenciais. No presente estudo avaliou-se o uso da água, as concentrações de nutrientes foliares em plantas de milho e as perdas de nutrientes em função de duas formas de determinação da FL em plantas de milho cultivadas em colunas de solo sob estresse salino. O delineamento experimental utilizado foi o inteiramente casualizado, com os tratamentos dispostos em parcelas subdivididas, com sete repetições. As parcelas foram formadas por duas formas de determinação da FL e as subparcelas por quatro condutividades elétricas da água de irrigação - CEa (0,5; 2,0; 4,0 e 6,0 dS m-1). As FL foram determinadas de acordo com 1) a fórmula proposta por Rhoades (RHO) e 2) aplicando uma FL de 0,15 calculado de acordo com o balanço hídrico do solo (SWB). A concentração foliar de N, P, Ca e Mg foi maior nas plantas onde utilizou-se o SWB do que no método de RHO. A concentração foliar de N, P e K diminuiu de acordo com o aumento da salinidade da água, independentemente do método de determinação da FL. A adição de uma FL de 0,15 de acordo com o SWB resultou em diminuição das perdas de nutrientes e maior produtividade física da água, em relação ao RHO. Assim, uma determinação mais precisa da FL aumenta os retornos econômicos da cultura do milho no semiárido quando se utiliza água salina para irrigação.

ABSTRACT Although leaching fraction (LF) is used to remove salts from the root zone under conditions of salinity, if miscalculated, it can decrease water use efficiency and lead to major losses of essential nutrients. This study evaluated the water use efficiency, leaf nutrient concentrations in maize plants, and nutrient losses as a function of two ways of determining the LF in maize crop grown in soil columns under salt stress. The experimental design used was completely randomized, with treatments arranged in split plots, with seven replicates. The plots were formed by two methods of determination of LF, and the subplots by four electrical conductivities of irrigation water - ECw (0.5, 2.0, 4.0, and 6.0 dS m-1). The leaching fractions were established according to 1) the formula proposed by Rhoades (RHO) and 2) by applying a LF of 0.15 calculated according to the soil water balance (SWB). The leaf concentrations of N, P, Ca, and Mg were higher in plants under SWB than under RHO method. The leaf concentrations of N, P, and K decreased with increased salinity, regardless of the LF. Adding a LF of 0.15 according to SWB resulted in decreased losses of nutrients and higher physical water productivity, as compared to the RHO. Thus, a more precise determination of the LF is needed to increase economic returns for maize cultivation in semi-arid regions when using brackish water for irrigation.

ABSTRACT The growing demand for care in the physical rehabilitation services of the Unified Health System (SUS) exceeds the supply, resulting in long waiting lines. This study is an exploratory quantitative research, which aims to present indicators to ease the access to physical rehabilitation services related to musculoskeletal disorders. Data were collected from the medical records of users residing in the northwest and west regions of Belo Horizonte (MG), who were over 18 years old and underwent treatment at the Specialized Rehabilitation Center IV (CER-IV) in 2019. The following indicators were obtained: absenteeism at the time of assessment; average time to start treatment according to priority; mean treatment time; and average number of users served per month. The analysis was based on 362 medical records. The mean time to start treatment was approximately 69 days and the mean treatment period was 94 days. The service absorbed around 30 new users per month and presented an absenteeism rate of 16.8%. It is believed that the indicators presented will possibly favor the management and control of the SUS rehabilitation services waiting lines.

RESUMEN La creciente demanda de atención en los servicios de rehabilitación física del Sistema Único de Salud (SUS) supera la oferta, lo que se traduce en largas colas de espera. Este estudio es una investigación cuantitativa exploratoria, que tuvo como objetivo presentar indicadores para facilitar el acceso a los servicios de rehabilitación física con respecto a los trastornos musculoesqueléticos. Se recolectaron datos de las historias clínicas de los usuarios residentes en las regiones noroeste y oeste de Belo Horizonte (en Mina Gerais, Brasil), mayores de 18 años de edad y que ingresaron al Centro Especializado en Rehabilitación IV en 2019. Se obtuvieron los siguientes indicadores: Absentismo al momento de la evaluación; tiempo medio para iniciar el tratamiento según la prioridad; tiempo medio de tratamiento y número medio de usuarios atendidos por mes. El análisis de este estudio se basó en 362 historias clínicas. El tiempo medio para iniciar el tratamiento fue de aproximadamente 69 días y el período medio de tratamiento, 94 días. El servicio recibió cas 30 nuevos usuarios al mes y presentó una tasa de absentismo del 16,8%. Los indicadores presentados pueden favorecer la gestión y control de las listas de espera de los servicios de rehabilitación del SUS.

RESUMO A crescente demanda por atendimento nos serviços de reabilitação física do Sistema Único de Saúde (SUS) excede a oferta, o que resulta em longas filas de espera. Neste estudo, realizou-se uma pesquisa quantitativa de cunho exploratório que teve por objetivo a apresentação de indicadores para facilitar o acesso aos serviços de reabilitação física no que tange às desordens musculoesqueléticas. Os dados foram colhidos dos prontuários de usuários residentes nas regiões noroeste e oeste de Belo Horizonte (MG), com mais de 18 anos de idade, submetidos a acolhimento no Centro Especializado em Reabilitação IV no ano de 2019. Obtiveram-se os seguintes indicadores: absenteísmo no momento da avaliação; tempo médio para início do tratamento de acordo com a prioridade; tempo médio de tratamento; e média de usuários atendidos ao mês. A análise deste estudo foi pautada em 362 prontuários. O tempo médio para início de tratamento foi de aproximadamente 69 dias e o período médio de tratamento, de 94 dias. O serviço absorveu cerca de 30 novos usuários ao mês e apresentou índice de absenteísmo de 16,8%. Acredita-se que os indicadores apresentados possivelmente favorecerão a gestão e o controle das filas de espera dos serviços de reabilitação do SUS.