Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

The objective of this study was to perform the morphometric characterization and classification of common bean seeds, Carioca, Gordo, Ovo-de-rola and Preto varieties, for agroecological cultivation. The research was carried out during the month of October, 2018, in the Phytopathology Laboratory of the Center of Agrarian and Environmental Sciences of the State University of Paraíba, located in the municipality of Lagoa Seca, Paraíba. Creole seeds of common bean (Phaseolus vulgaris L.) of the Carioca, Gordo, Ovo-de-rola and Preto varieties were used by producers in the region of Montadas, Paraíba, during the 2018 harvest. For each variety, four subsamples of 50 seeds were taken, totaling 200 units. The results showed that, among the bean varieties, the Feijão Gordo variety showed the best results, being 13,6 mm long, 7,2 mm wide, 6,3 mm thick and 0,40 g mass.

Landfill percolate is a liquid produced from physical, chemical and biological processes to which municipal solid waste is subjected to landfills. It has a variable physicochemical composition and may contain high levels of nutrients, thus being used in plant fertilization. Therefore, the aim of this work was to evaluate the growth of sunflower plants irrigated with water of moderate salinity and with nutritional supplementation with landfill percolate. The experiment was carried out in experimental area under a completely randomized design in a 4 x 2 factorial design (1: 100% fine grained sand - NBR 6502; 2: sand + mixed organic fertilizer (sugarcane bagasse mix, cattle manure, chicken manure, wood sawdust and agricultural plaster) and fertilizer 80 kg N ha-1, 3: sand + landfill percolate 80 kg N ha-1, and 4: sand + landfill percolate 160 kg N ha-1) and two saline concentrations of irrigation (distilled water or 60 mM NaCl solution), with 10 repetitions in 12 L pots. Growth analyzes (height, stem diameter, leaf number), relative chlorophyll content and chapter diameter were performed. Under the experimental conditions employed, sandy substrate, landfill percolate concentrations used promoted increases in all growth variables analyzed in sunflower seedlings, especially at 80 Kg N ha-1. Irrigation with 60 mM NaCl solution did not cause negative effects on growth variables, thus demonstrating the moderate tolerance of sunflower plants to salinity in sandy substrate.

In order to evaluate the fiber characteristics of the different cotton cultivars, a research field was carried out in the Quixeramobim, Ceará, municipality, where the geographical coordinates Latitude (S ) 05 ° 11'57 ''S, Longitude (W) 39 ° 17'34''W and Altitude (M) 191. The local rainfall varies from 700 to 750 mm. These rains are concentrated in the period from January to June. The time of the Quixeramobim planting, was in February characterizing like normal crop. The experimental design was a randomized complete block design with four replications and twenty treatments. The experimental plot consisted of four linear 5-meter lines, spacing 0.90 meters between rows, 6 to 9 plants / m. The useful area of the plot used to obtain the data were the two central lines, in this test the strains and or cultivars were used referring to the year/crop 2019. It was concluded that there are phenotypic variability the treatments presented significant differences for the majority BRS 416, BRS 286 and BRS 293 are the best performance because they associated the best averages for feather productivity and fiber characteristics.

Renewable energies arise as a way of mitigating the environmental damages caused by traditional of energy sources, as well as offering a diversification of the energy matrix. Among the many energetic vectors possible, microalgae are a good choice for power generation due to their high conversion capacity of solar energy into chemical energy, broadening the possibilities of obtaining algal biomass in energetic applications. Through them, it's possible to produce biodiesel, bioethanol, methane gas and hydrogen gas as fuel. The present work evaluates the energy potential of the microalga Oedogonium sp. through its physical-chemical analysis and the calorific value, as well as the viability of its densification in the form of pellets, to be used as a solid combustion material. For this, calorimetric, thermogravimetric and immediate analyzes were performed, where in the latter it was possible to obtain the moisture, ash, fixed carbon and volatile contents present in the biomass. The results found in the analyzes were satisfactory, in which the higher calorific value was 16,13 MJ/kg, higher than that found for firewood, and in the standards imposed by European, Swedish and international standards for pellets.

The knowledge of the physical properties of agricultural products play a relevant role in the study of industrial harvesting and postharvest processes, aiming at better equipment sizing and storage conditions. Thus, the present work aims to evaluate the effects of drying and different cultivars on the physical properties of split bean beans. Four treatments were evaluated, in which samples of fresh grain produced in the state of Paraíba and Pernambuco were submitted to the drying process for 30 h at 45 ° C and 62% relative humidity. The treatments were evaluated for the parameters water content, water activity, individual grain mass, actual and apparent specific mass, dynamic angle of repose and grain dimensions (a, b, c). porosity and grain volume. It was observed that the drying process influences the physical properties of the material, providing an increase of apparent and actual specific masses. The values of water activity, individual mass, volume, porosity, dynamic resting angle and mutually perpendicular grain dimensions decreased after the reduction of water content. The sphericity was differently influenced between treatments due to uneven shrinkage in the characteristic dimensions during the drying process.

The study of plant litter including its production over its seasonality, decomposition and nutrient cycling process can provide information that contributes to a better understanding of the vegetation and how the sustainability of forest ecosystems occurs. This study’s purpose was to evaluate the production and accumulation of plant litter during an 18-month period in a forest fragment of the Caatinga biome. The experiment was conducted during an 18-month period, from April 2016 to September 2017, in the Caatinga biome. For this, 100 x 100 cm collecting boxes were installed at 40 cm of soil height to intercept leaves, branches, and reproductive structures. For the accumulated plant litter, a 50 x 50 cm bottomless planter box was used for monthly withdrawals of the material laid on the ground. During the collection period, the total plant litter production was estimated at 4302.15 kg ha-1 and the average accumulation of plant litter on the soil in the study area was approximately 4603.09 kg-1 ha-1 year-1 with the largest deposits at the beginning of the rainy season. The results presented in this study demonstrate great relevance for the development of management activities in the Caatinga biome.

In poorer regions and even in large Brazilian cities, medicinal plants are marketed in open markets and popular markets and can also be found in residential backyards and in the nearby woods the houses Ethnobotanical studies in open markets and markets are important, since many times the plants marketed are not studied or have not had their active principles identified to validate them as a medicine or to take advantage of them properly and economically. In view of the above, the purpose of this work was to conduct an ethnobotanical survey in the free market and municipal market of Patos, Paraiba, Brazil. The research took place during the month of July 2017, through visits to the free fairs and interviews using questionnaires of the semi-structured type applied to the traders of medicinal plants. A total of 9 raizers were interviewed. A total of 36 medicinal plants were marketed. The most cited plants were cashew and aroeira both with (13.89%) and barbatimão (11.77%). The raizeiros and herbs have great social and economic importance in the cities, because the use of medicinal species minimizes costs with pharmaceutical drugs, but also is a source of income for these merchants. There is a wealth of knowledge about the rootstocks and grasses that operate in the Central Market of Patos, as well as a diversity of species traded.

Beans are one of the most produced foods in the whole national territory, being intense the search for productive cultivars, with good culinary characteristics and different nutritional properties. The present study aimed to evaluate the influence of cooking on the centesimal composition of eight cultivars of cowpea: Costela de Vaca, BRS Marataoã, BRS Itaim, BR 17-Gurguéia, BRS Novaera, Paulistinha, Setentão and Patativa. The grains were submitted to two different procedures to perform the analyzes: in natura (flour) and cooked (with maceration) under pressure. The determinations of moisture, ashes, lipids, proteins, carbohydrates, energy, pH, acidity, and sugars were carried out. All analyzes were performed in quadruplicate in the in natura and cooked cultivars, and the results were expressed as mean ± standard deviation. The results showed that the moisture content varied from 7-11% in the raw cultivars, with increase after cooking (60-70%). Whereas, the content of proteins, ashes, carbohydrates, energetic value and sugars, decreased in all the cooked cultivars. It can be concluded that, among the cultivars analyzed, the Setentão showed the highest protein content, before and after cooking. Even with a reduction in the other parameters, the cultivars of cowpea maintained relevant nutritional and functional characteristics, presenting a cooking time between 8 and 10 minutes, being considered fast cooking and therefore adequate to meet the current demand of consumers.

Introduction: The demographic changing on a worldwide scale are not unfamiliar to Ecuador where the life expectancy of the population has increased.Objective: To characterize the health conditions of the elderly who attended geriatric centers in the city of Loja in 2017.Material and Methods: Descriptive cross-sectional study where quantitative techniques were used applying different geriatric scales to 87 older adults who attended the Municipal Elderly Care Center No. 1, and Daniel Álvarez and San José Centers in the city of Loja, Ecuador.Results: The 59.1% of the older adults studied were women; 59.7% had just basic or elementary education and the average age was 84.01 years. It was specified that 62.1% of them did not present comorbidity. Visual neurosensory (64.4%) and auditory (50.6%) deficits were identified. Fragility was found in 54.0% of the cases as well as indicators of functional dependence on basic activities (73.5%) and instrumental activities (93.1%). Cognitive deficit was evaluated in 50.6% of the cases, and depression was diagnosed in 56.3% of them.Conclusions: The older adults included in the study were mainly women with basic or elementary education and an average age of over 80 years.  Subjects who did not have comorbidity, those who presented visual and auditory deficit, physical fragility, dependence to perform the basic activities of daily life and the instrumental ones, cognitive deficit, and depression prevailed in the study.Keywords: Elderly; comorbidity, fragility, dependence, cognitive deterioration

Introducción: La enfermedad renal crónica está presente en el 20 % de la población adulta mayor, lo que genera numerosos gastos sanitarios.Objetivo: Caracterizar la enfermedad renal crónica en adultos mayores.Material y métodos: estudio observacional, descriptivo y longitudinal. Se basó en un pesquisaje mediante la estimación de filtrado glomerular (fórmula CKD-EPI), utilizando la creatinina sérica y otros exámenes de laboratorio, repetidos a los tres meses para su confirmación; efectuado en el periodo de mayo de 2014 a mayo de 2015, en los consultorios del médico y enfermera de la familia 13,14 y 42 del Entronque de Pilotos. El universo fue de 389 pacientes y la muestra de 109. Se utilizó la estadística descriptiva e inferencial (frecuencias absolutas, frecuencias relativas y las prueba X2, la prueba de Bartholomew) con un nivel de significación del 95 %.Resultados: La hematuria fue el marcador más frecuente seguido por la albuminuria y la proteinuria. La HTA aquejaba a 94 pacientes (86,2 %), seguido por las enfermedades cardiovasculares 73 (77,0 %) y la diabetes mellitus con 47 pacientes (43,6 %). Hubo un predominio de la hipertensión arterial y de la diabetes mellitus como causas probables de la enfermedad con 58 y 20 casos, lo que representa el 53,2 % y el 18,3 % respectivamente.Conclusiones: La enfermedad superó las tasas de prevalencia existentes en el área de salud, fue frecuente la presencia de marcadores de daño renal y factores de progresión.