Objective Digestive symptoms are the most common complaints among patients who seek primary healthcare services. This study aims to identify digestive symptoms and determine their association with upper gastrointestinal endoscopy findings in patients treated at a public endoscopy centre in Northeast Brazil. Methods We conducted a cross-sectional study using data from 751 patients with digestive symptoms who had an indication for upper gastrointestinal endoscopy. We identified the association between these variables through Fisher's exact test or Chi-square test and calculated the odds ratio. Results Epigastric pain occurred in 83%, post-prandial plenitude in 72.6%, and heartburn in 72.3% of the patients. Women were more likely to present with epigastric pain ( p = 0.001; odds ratio [OR] = 1.25; confidence interval [CI] = 1.07–1.47), post-prandial plenitude ( p = 0.001; OR = 1.21; CI = 1.06–1.37), retrosternal pain or burning ( p = 0.03; OR = 1.11; CI = 1.004–1.24), heartburn ( p = 0.04; OR = 1.10; CI = 0.98–1.24), unintentional weight loss ( p = 0.01; OR = 1.12; CI = 1.02–1.24), and dysphagia ( p = 0.01; OR = 1.14; CI = 1.03–1.25). There was no statistically significant association between digestive symptoms and endoscopic findings of the upper gastrointestinal tract. Additionally, there was no significant association between digestive symptoms and abnormalities detected by endoscopy. Conclusion Dyspeptic symptoms of epigastric pain, post-prandial fullness, and heartburn were the most common symptoms in patients referred for endoscopy. Dyspepsia, heartburn, and dysphagia were more common in women than in men. Digestive symptoms were not associated with positive endoscopy findings or abnormalities detected by endoscopy.

No abstract

No abstract

That research was based on producing and studying a composite material formed by mortar (cement, sand, and water) with the addition of a polymer (tire residue) in order to minimize construction costs, environmental and public health problems, caused by incorrect disposal of waste tires in the city of Açailândia, Maranhão, Brazil. Six cylindrical specimens were produced in order to outline the sediment, three of which were reinforced with 70g of rubber, processed with 20228g of cement, 2212g of sand, and 1.5 liters of water. The other three only with cement sand and water. Abrasion and compression wear tests were performed to characterize the mortar in the hardened state. For compression testing, a hydraulic press was used in order to measure the mechanical strength of traditional mortar and mortar with the addition of tire rubber. The results showed the potential effectiveness of the mortar developed with the cement, sand, and water compound that had the same characteristics as the traditional mortar mixture only with the polymer incorporation differential. In the compressive strength test, the composite presented a resistance higher than the minimum indicated for the internal and external coating of the strokes with the rubber aggregate (NBR-7215), being verified its potential as an insulating material, resistance of the weathering and preservation of the ambient temperature (NBR-13278), so this composite material met the criteria of being a sustainable option for both civil construction and the environment.

This work had as objective, the construction and implantation of an economically viable biomass anaerobic digester for the sustainable production of biogas and natural biofertilizer, in a rural property in the municipality of Açailândia-MA. The biogas generation estimate was based on the percentage of volatile solids in the biomass (bovine manure) used. A daily generation of 300 kg of manure was obtained. The gravimetric methodology was used to calculate the percentage of total solids, volatile solids, and fixed solids. The organic load of the biodigester was calculated, the estimated flame time, light time, and reduced energy tariff. The system was assembled using low-cost materials. Methane production of 0.361 m³/day, making it possible to keep the flame of a domestic stove in operation for 49 min/day or used to generate approximately 2.33 kW/h per day or to keep a biogas lamp on for 5h and 27h min/day, and may also be saving R $ 1.30/day on the energy bill. In addition to gas, the process of methanization of cattle manure generated a natural biofertilizer, which can be commercialized or even used by the owner of the biodigester. Direct burning of the gas right after generation is beneficial, as it is complete combustion, generating only water and carbon dioxide, much less polluting than methane. The use of biodigesters and methanization are alternatives for replacing liquefied petroleum gas, which can possibly supply the demand for electrical or thermal energy and also reduce costs in communities and rural enterprises.

Desde as primeiras civilizações o homem busca se instalar sempre próximo a margens de rios, lagos e mares buscando suprir desde as necessidades básicas até as mais complexas. Essa relação do homem com a natureza é um assunto muito discutido atualmente, pois, a utilização dos recursos hídricos tem gerado graves impactos aos ecossistemas, poluição, contaminação e podendo culminar na escassez desse bem natural. O presente estudo teve como finalidade avaliar a qualidade da água recreativa em balneários banhados pelo córrego Mosquito da cidade de Açailândia- MA conforme os padrões de estabelecidos pela Portaria nº 888 de 2021 do Ministério da Saúde (MS) as resoluções CONAMA nº 274/2000 e nº 357/2005. O levantamento inicial da área de estudo foi feito, utilizando georreferenciamento pela ferramenta exploratória Google Earth. O critério de escolha dos pontos amostrais se deu pelo motivo de serem os mais frequentados para atividade balneária recreativa no município. Foram realizados testes físico-químicos e microbiológicos pelas técnicas APHA, EPA, SM e FUNASA. De acordo com os resultados obtidos, a maioria dos parâmetros analisados em todos os pontos (P1, P2, P3 e P4), tais como como pH, índices de ferro, fósforo, nitrito e nitrato não se encontram em conformidade com a Portaria nº 888/2021 do MS além de altas concentrações de bactérias termotolerantes com concentração ≥1600 NMP/100 mL mostrando que possivelmente o corpo hídrico está poluído. Assim, a água em todos os pontos de coleta analisados não está apta para o contato primário tendo uma predominância de classe 3.

No abstract

No abstract