ABSTRACT Zinc is an essential micronutrient for plant metabolism and has been studied in several crops of economic interest. However, there is no evidence of its use in coconut crops. The objective of this study was to evaluate the influence of foliar zinc fertilization with doses of zinc on dwarf green coconut seedlings based on their nutritional status, growth attributes, and gas exchange. The experimental design consisted of randomized blocks, and the treatments consisted of different zinc doses (0, 5, 10, 15, 20, and 25 g per plant) with five replicates. Seedlings were positively influenced by zinc dose, mainly in terms of growth variables and gas exchange. Zinc fertilization reduced iron and manganese content and increased zinc concentrations in the leaf tissue. Zinc fertilization promoted an increase in leaf area, height, shoot dry mass, and total dry mass. Furthermore, zinc fertilization improved photosynthesis, transpiration, stomatal conductance, internal CO2 concentration, instantaneous water use efficiency, and intrinsic water use efficiency. The improvement in these growth indices and gas exchange, in most variables, was up to an estimated dose of approximately 16 g of zinc per plant and decreased with increasing doses.

RESUMO O zinco é um micronutriente de importância essencial para o metabolismo vegetal, é estudado para diversas culturas de interesse econômico, porém sem evidências de estudo para a cultura do coqueiro. Objetivou-se com este estudo avaliar a influência da fertilização com doses de zinco via foliar em mudas de coqueiro anão verde, por meio do estado nutricional, atributos de crescimento e trocas gasosas. O delineamento experimental foi em blocos ao acaso, e os tratamentos foram constituídos por doses de zinco (0, 5, 10, 15, 20 e 25 g por planta), com cinco repetições. As mudas foram influenciadas positivamente pelas doses de zinco principalmente nas variáveis de crescimento e nas trocas gasosas. No estado nutricional afetou de maneira decrescente o ferro e o manganês e aumentou o zinco no tecido foliar. O zinco proporcionou incrementos na área foliar, altura de plantas, massa seca da parte aérea e massa seca total. Além disso, melhorou a fotossíntese, transpiração, condutância estomática, concentração interna de CO2, eficiência instantânea do uso da água e eficiência intrínseca do uso da água. A melhora nesses índices de crescimento e trocas gasosas, na maioria das variáveis, foi até a dose estimada de aproximadamente 16 g de zinco por planta e diminuiu com o aumento das doses.

Abstract Food processing allows a wide variation in the final quality of the product, which directly depends on the quality of the raw material used, the processing conditions, storage and commercialization. Salting, for example, is one of the oldest methods used to preserve meat. In the meat industry, the incorporation of salts into products is commonly used to improve dietary functionality and ensure food safety. Thus, the objective of this review was to understand that the discarded matrix meat can be used to make jerky meat, adding value to the final product. The processing of jerked beef is based on the osmotic dehydration process in counter flow, promoted by the penetration of salt with consequent exit of water from the inter and extra fibrillar compartments to the surface, with subsequent drying. At the same time, myosin denaturation occurs as a result of high temperatures, as well as myoglobin oxidation, promoted by salt, increasing the susceptibility to protein oxidation. The use of discarded animal meat to make jerky adds value to the by-product, improving sensory quality.

Abstract This study's objective was to evaluate the physical-chemical, microbiological, and sensory aspects of pork meat with different levels of salting. Pork from the Duroc and Landrace breeds, with an average live weight of 281 ± 15.72 kg, were used. The physicochemical data were analyzed following a completely randomized design with four salt addition levels (30, 50, 70, and 90%). Sensory analysis was performed through a completely randomized design, observing the influence of salt levels in meat. The physical-chemical and sensory variables did not significantly affect (P>0.05) salt addition, except for cooking loss and water retention capacity. It was concluded that the salt introduction levels of 30 and 50% are the most appreciated by consumers. The addition of salt levels in the pork meat does not modify the physical-chemical characteristics and the meat's sensory analysis.

Abstract This study aims to analyze the length-weight relationship (LWR) of 22 fish species collected in the surf zone of Ponta de Pedras, northern coast of Pernambuco, Northeastern Brazil. The specimens were collected between August 2013 and July 2014 using a beach seine net, and their biometry were recorded in laboratory. The LWR was calculated using linear regression and, confidence intervals were estimated for the regression parameters a and b. A total of 1,433 specimens belonging to 22 species, 12 families, and six orders were collected. All species had b values within the expected range of 2.5-3.5 (except for S. plagusia). Additionally, 11 species have hyperallometry, eight have isometry, and three have hypoallometry. Herein, we present values of LWR for Lycengraulis grossidens, Trachinotus goodei, and Umbrina coroides, which are new to Northeastern Brazil, and Albula vulpes and Sparisoma radius which are new for the Brazilian coast.

Objective: Depression is highly prevalent in hemodialysis patients, but few studies have evaluated older hemodialysis patients. The aim of this study was to evaluate the prevalence of depression, its associated factors and its impact on quality of life in an older population on hemodialysis. Methods: This was a cross-sectional study including 173 hemodialysis patients aged 60 years or older in Recife, Brazil. Depression was evaluated using the Mini-International Neuropsychiatric Interview when depressive symptoms (according to the 5-item Geriatric Depression Scale) were present. Quality of life was assessed with the Control, Autonomy, Self-realization and Pleasure Questionnaire (CASP-16). Data were also collected on sociodemographic, laboratory (albumin, parathormone, hemoglobin, and phosphorus) and dialysis (dialysis vintage, vascular access and hemodialysis adequacy) characteristics. Results: Depression was present in 22.5% of the sample. Depressed patients presented low CASP-16 quality of life scores (31.6 vs. 24.2, p < 0.001), twice the odds of albumin levels < 3.8 g/dL (OR 2.36; 95%CI 1.10-5.07; p = 0.027) and higher parathormone levels (OR 1.06; 95%CI 1.00-1.13; p = 0.05). Conclusion: Older hemodialysis patients have a high prevalence of depression. Depressed patients presented poor quality of life, lower serum albumin and higher parathormone levels. Teams dealing with older hemodialysis patients should include depression and quality of life assessments in care protocols.

Resumo Este artigo investiga o efeito da variação dos preços dos imóveis sobre o consumo de bens não duráveis no Brasil. Para isso, construímos um painel estadual com informações sobre o consumo de bens não duráveis para o período 2008-2017, período que abrange o “boom” dos preços de imóveis e do consumo (2008-2014) e a queda dos mesmos (2014-2017). Estimamos o efeito dos preços de imóveis sobre o consumo combinando as abordagens de Campbell e Cocco (2007) e Case et al. (2005). Em particular, estimamos a mesma equação de forma reduzida proposta por Campbell e Cocco (2007), derivada da simulação de um modelo teórico de habitação e escolha de consumo sob restrições de dívida. Devido às limitações dos dados brasileiros, não foi possível executar regressões de dados em painel ao nível de coorte (agregação entre as famílias em diferentes pesquisas) como em Campbell e Cocco (2007). Por isso, exploramos dados agregados ao nível do estado para estimar regressões de dados em painel, como em Case et al. (2005). Os resultados sugerem que as mudanças nos preços imobiliários afetam significativamente o consumo de bens não duráveis no Brasil. As magnitudes são quantitativamente próximas aos efeitos encontrados para o Reino Unido em Campbell e Cocco (2007). Além disso, documentamos que o efeito dos preços imobiliários no consumo de bens não duráveis é assimétrico, mais forte no período de queda dos preços. A diferença dos efeitos durante as diferentes fases do ciclo econômico sugere que as restrições de crédito podem explicar os efeitos dos preços de imóveis sobre o consumo de bens não duráveis.

Abstract This paper investigates the effect of real-estate prices on non-durable consumption in Brazil. For that, we build a state-level panel of the determinants of non-durable consumption growth during the period 2008-2017. This period covers both a “boom” in real-estate prices and consumption (2008-2014) as well as a “bust” in them (2014-2017). We estimate the effect of house prices on consumption combining the techniques and ideas from Campbell e Cocco (2007) and Case et al. (2005). In particular, we estimated the same reduced-form equation proposed by Campbell e Cocco (2007), which is derived from simulating a theoretical model of housing and consumption choice under debt constraints. Due to Brazilian-data limitations, we were unable to run panel-data regressions at the cohort level (aggregation across households on different surveys) as in Campbell e Cocco (2007). Indeed, we had to resort to data aggregated at the state level to estimate our panel-data regressions as did Case et al. (2005). Our results suggest that changes in house prices significantly affect non-durable consumption in Brazil. The magnitudes are quantitatively close to the effects found for the U.K. by Campbell e Cocco (2007). Furthermore, we document that the effect of house prices on non-durable consumption is asymmetric, stronger in the “bust” than in the “boom” phase of the business cycle. This difference in the effects during different phases of the business cycle suggests that borrowing constraints might explain the effects of house prices on nondurable consumption.

RESUMO Introdução A segurança do paciente (SP) está entre os principais temas discutidos pelos profissionais da área de saúde em todo o mundo. No Brasil, em 2016, ocorreram mais de 302 mil mortes por eventos adversos evitáveis e 70% eram de causas preveníveis, que custaram mais de 10,9 bilhões de reais. Objetivo Avaliar os conhecimentos, habilidades e atitudes de estudantes do quarto e oitavo períodos do curso de Medicina sobre segurança do paciente por meio de simulação. Método Foi realizado um estudo transversal. A coleta de dados foi feita por meio de dois instrumentos, um com o perfil sociodemográfico e outro a ser preenchido durante a simulação. A simulação ocorreu numa sala de laboratório preparada para reproduzir um cenário hospitalar. Foram planejados pelos pesquisadores seis riscos a serem identificados no cenário durante o tempo de sete minutos. Os dados foram analisados com uso do Epi-Info 7.1. A pesquisa foi aprovada pelo Comitê de Ética da instituição. Resultado Participaram do estudo 42 estudantes, sendo 24 do quarto período e 18 do oitavo. Nenhum estudante identificou todos os seis riscos. No geral, os alunos apresentaram baixo desempenho, tendo identificado em média de dois a três riscos à segurança do paciente. O risco de administração de medicação equivocada foi percebido por 34 estudantes (81%); a falta de identificação por 15 (36%); o risco de quedas por 11 (26%); problemas de higienização das mãos por 6 (14%); o risco de procedimentos cirúrgicos equivocados por 3 (7%) e o risco de lesões por pressão não foi identificado por nenhum estudante. Três riscos adicionais não planejados pelos pesquisadores foram identificados pelos estudantes, com predomínio de identificação de dois riscos por estudantes do oitavo período. Conclusão Os estudantes apresentaram pouca competência em identificar riscos à segurança do paciente. Contudo, demonstraram melhor desempenho ao longo do curso, revelando quão importante é trabalhar a segurança do paciente já nos primeiros anos de graduação.

ABSTRACT Introduction Patient safety (PS) is among the main topics discussed by healthcare professionals worldwide. In Brazil, more than 302,000 deaths from preventable adverse events were reported in 2016, and 70% had preventable causes that cost more than 10.9 billion reais. Objective To evaluate the knowledge, skills and attitudes, through simulation of students of the medical course of the 4th and 8th semesters regarding the subject of patient safety. Methods A cross-sectional study was conducted. The data was collected through two instruments, one to ascertain the sociodemographic profile and the other to be completed during the simulation. The simulation took place in a laboratory room prepared to reproduce a hospital scenario. The researchers planned six risks to be identified in the scenario with a duration of 7 minutes. All data were analyzed by EPI-INFO 7.1. The research was approved by an ethics committee. Results A total of 42 students participated in the study, 24 and 18 of the 4th and 8th periods, respectively. No student has identified all six risks. Overall, students performed poorly, identifying on average two to three risks to patient safety. The risk of administration of wrong medication was perceived by 34 (81%); lack of identification by 15 (36%); risk of falling by 11 (26%); problems with hand hygiene by 6 (14%); risk of wrong surgical procedures by 3 (7%) and risk of pressure ulcers was not identified by any student. Three additional risks not planned by the researchers were identified by the students, especially two risks identified by 8th-period students. Conclusion Students displayed little ability to identify patient safety risks. However, they demonstrated better performance throughout the course, revealing how important it is to work on patient safety in the early years of undergraduate training.

Resumo: O objetivo deste trabalho foi estimar as frequências alélicas dos polimorfismos IGF2/MboII (G > T) do gene "insulin-like growth fator 2" (IGF2), DQ499531.1:g.134 A> T do gene "pro-melanin-concentrating hormone" (PMCH) e DQ667048.1:g.3290G> T do gene "RAR-related orphan receptor C" (RORC) em bovinos de corte de diferentes grupos genéticos, e avaliar a ocorrência de associações entre esses polimorfismos e características relacionadas à composição da carcaça e à qualidade de carne. Foram utilizados dados de carcaça e qualidade de carne de 499 animais: 313 da raça Nelore (Bos indicus) e 186 provenientes de seus cruzamentos com raças taurinas (Bos taurus). Para o polimorfismo IGF2/MboII, as frequências encontradas para o alelo G foram 0,231 e 0,631 para Nelore e cruzados, respectivamente. Para o polimorfismo DQ499531.1:g.-134A > T, as frequências alélicas de A foram 0,850 para Nelore e 0,905 para cruzados. Para o polimorfismo DQ667048.1:g.3290G > T, as frequências alélicas de G foram 0,797 e 0,460 para Nelore e cruzados, respectivamente. Os polimorfismos de nucleotídeo único (SNPs) avaliados não se relacionam significativamente com as características de carcaça e carne (área de olho de lombo, espessura de gordura subcutânea, força de cisalhamento, lipídeos totais e índice de fragmentação miofibrilar), o que sugere pouca utilidade dos polimorfismos analisados dos genes IGF2, PMHC e RORC como marcadores de seleção nas populações bovinas estudadas.

Abstract: The objective of this work was to estimate allelic frequencies of the polymorphisms IGF2/MboII (G > T) of the insulin-like growth factor 2 (IGF2) gene, DQ499531.1:g.134A > T of the pro-melanin-concentrating hormone (PMCH) gene, and DQ667048.1:g.3290G > T of the RARrelated orphan receptor C (RORC) gene in beef cattle of different genetic groups, and to evaluate the associations between these polymorphisms and traits related to carcass composition and meat quality. Data on carcass and meat quality of 499 animals was used: of 313 Nellore (Bos indicus) and of 186 Nellore crossed with different taurine (Bos taurus) breeds. For the IGF2/MboII polymorphism, the frequencies found for the G allele were 0.231 and 0.631 for Nellore and crossed breeds, respectively. For the DQ499531.1:g.134A > T polymorphism, the allelic frequencies of A were 0.850 for Nellore and 0.905 for crossed breeds. For the DQ667048.1:g.3290G > T polymorphism, the allelic frequencies of G were 0.797 and 0.460 for Nellore and crossed breeds, respectively. The evaluated single nucleotide polymorphisms (SNPs) are not significantly associated with carcass and meat traits (rib eye area, back fat thickness, shear force, total lipids, and myofibrillar fragmentation index), suggesting little utility of the analyzed polymorphisms of the IGF2, PMHC, and RORC genes as selection markers in the studied cattle populations.

O objetivo deste trabalho foi obter informações sobre a influência das variações climáticas na atividade de vôo da abelha Jandaíra, M. subnitida Ducke. A pesquisa foi conduzida no ano de 2006 no meliponário da Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró, RN, durante os meses de março a junho (período chuvoso) e setembro a dezembro (período seco). Para realização do experimento foram utilizadas cinco colônias de M. subnitida Ducke, nas quais se observou, a cada quinze dias, das 5 às 18h o fluxo de abelhas saindo e entrando e o tipo de material que estas transportavam. As informações coletadas na entrada das colônias foram correlacionadas com dados climáticos, temperatura, umidade relativa do ar, irradiação solar e velocidade do vento, coletados por meio de estação meteorológica automática no momento das avaliações. A ação conjunta das variações climáticas influenciaram na atividade de vôo de M. subnitida, destacando-se a influencia da temperatura, umidade relativa do ar e irradiação solar. A velocidade do vento atuou apenas compensando os demais fatores meteorológicos. As atividades externas da abelha jandaira se concentram pela manhã, tanto no período chuvoso de março a junho, quanto no período seco de setembro a dezembro. As cargas coletadas em maior quantidade durante as atividades de forrageamento da jandaira nos dois períodos foram néctar, água e pólen. Desta maneira, a pratica de manejo dos cortiços na região é indicada ao final da tarde, quando as atividades externas das abelhas estão cessando.

The objective of this study was to obtain information about the influence of climatic variations on the flight activity of Jandaíra bees, M. subnitida Ducke. The research was conducted in 2006 at the stingless-bee apiaries of the Federal Semi-Arid Rural University do (UFERSA), in Mossoró, RN, from March to June (the rainy season) and September to December (the dry season). For the experiment, five colonies of M. subnitida Ducke were used, where every fortnight, from 5:00 a.m. to 6:00 p.m, the flow of bees entering and leaving, and the type of material they carried, were noted. The information collected at the entrance of the colonies was correlated with climatic data, temperature, relative humidity, solar radiation and wind speed, collected by an automatic weather station at the time of the evaluations. The joint action of the climatic variations influenced the flight activity of M. subnitida, where the influence of temperature, relative humidity and solar radiation stood out. The wind speed acted only to compensate for the other meteorological factors. The external activities of the Jandaira bee are concentrated in the morning, both in the rainy season from March to June, and in the dry season from September to December. Nectar, water and pollen were collected in greater quantities during the foraging activities of the Jandaira in both periods. Therefore, management of hives in the region, is best carried out in the evening, when the external activities of the bees are coming to an end.

Tumor estromal gastrointestinal es el termino adoptado para tumores mesenquimáticos específicos del tracto gastrointestinal que se derivan de las células del estroma sin una línea celular definida de origen, con patrones variables de diferenciación. En un 10% son sintomáticos presentándose como dolor abdominal, hemorragia digestiva aguda, sangrado oculto, y pérdida de peso. Presentamos el caso de una paciente femenino de 50 años de edad con el diagnóstico de tumor del estroma gastrointestinal, cuya única sintomatología fue dolor abdominal (hemiabdomen superior).Mencionaremos la clínica, el diagnóstico, el manejo endoscópico y quirúrgico.

The gastrointestinal stromal tumors are rare neoplasms defined as mesenchymal tumors, arising from the wall of the gastrointestinal tract, and denoted as tumors arising from the stroma with no definite cell line origin and varying patterns of differentiation. About 10% are symptomatic. Commom presenting features include abdominal pain, gastrointestinal blood loss, abdominal mass and weight loss. We report a case of a 50 yr old woman with a gastric stromal tumour, the only symptom was abdominal pain. We described symptoms, diagnosis and endoscopic and surgical treatment.