City Of Petrolina Research Articles

A CASE OF WILMS TUMOR: CASE REPORT

Wilms tumor, also called nephroblastoma, is a renal neoplasm with the highest incidence in early childhood and rarely affects adults. The objective of the present study was to report a case of a child who was referred to a private clinic in the city of Petrolina - Pe to undergo an imaging exam and review the literature regarding Wilms tumor. It was developed through a case report, together with literature findings in the Pubmed database. In the report, the patient had a radiological diagnosis of Wilms tumor, indicating chemotherapy treatment and subsequent surgical intervention. In the end, it was found that the diagnosis must be made by correlating radiological and surgical findings and with the anatomopathological study.

Process of donating human milk from the milk bank in the city of Petrolina, PE

Resumo Objetivos: analisar a doação de leite humano no Banco de Incentivo e Apoio a Amamentação (BIAMA) no período de 2018 a 2020. Métodos: avaliação normativa, de caráter descritivo e exploratório, com abordagem quantitativa e enfoque no Modelo Donabedian. Estudo com lócus no BIAMA do Hospital Dom Malan, na cidade de Petrolina-PE, a partir de registros da plataforma online da Rede Brasileira de Bancos de Leite Humano, com dados do BIAMA de 2018 a 2020 e atividades de campo. Resultados: em 2020, houve um decréscimo no número de atendimentos em grupo e de consultas médicas, em contrapartida, ao aumento das consultas de enfermagem. A maior parte do abastecimento de leite advém do público externo, e em 2020 foi observado uma redução no número de doadoras e no volume de leite humano coletado. Conclusões: a pandemia de COVID-19 repercutiu de forma negativa em atividades do BIAMA e na doação de leite, no entanto, foi observado a utilização de novos meios de comunicação para atendimento dos pacientes. Ainda assim, novas estratégias para recrutamento de doadoras devem ser implementadas. Em relação às principais normas que regulamentam o funcionamento de Bancos de Leite Humano, a maioria dos itens elencados são obedecidos pelo BIAMA.

Aplicação de cálcio marinho na produção da mangueira ‘Palmer’

ABSTRACT Considering the growing demand for mango to meet the national and international market and the competitiveness among the producing markets, the use of new products and management techniques that improve the potential production in the irrigated areas of the Brazilian northeast can be an important tool for the sustainability of its cultivation. In this context, the objective of the present study was to evaluate the effect of doses and periods of application of calcium from Lithothamnium seaweed via fertigation, in two production cycles of ‘Palmer’ mango in the Brazilian semiarid region. The experiment was conducted at the Saúde farm, located in the Projeto Senador Nilo Coelho N-09, in the city of Petrolina, PE, Brazil. The experimental design was randomized blocks, in a 5 × 4 × 2 factorial scheme, corresponding to five doses of Lithothamnium via fertigation (0, 5, 10, 15 and 20 L ha-1), four periods of application (30, 60, 90 and 120 days after flowering) and two production cycles, with three blocks, totaling 120 plots. The variables evaluated were: number of marketable fruits and parthenocarpic fruits per plant, average weight of marketable fruits and parthenocarpic fruits, and marketable fruit production. Application of 12 L per plant of calcium from Lithothamnium promotes a 20% increase in ‘Palmer’ mango yield in the Sub-middle São Francisco Valley. Calcium from Lithothamnium should be applied from the beginning up to 30 days after flowering of ‘Palmer’ mango in the Sub-middle São Francisco Valley. The effect of the application of calcium from Lithothamnium seaweed on ‘Palmer’ mango production varies according to doses and production cycles.

Dirt on photovoltaic modules and efficient energy generation in the Brazilian semiarid

ABSTRACT A photovoltaic electrical energy system is one of the least aggressive ways to affect the environment. Factors such as dirt influence the efficiency of these systems and can have a considerable impact in low rainfall regions, such as the Brazilian semiarid. In this respect, the aim of the present study was to analyze the effect of dirt on the efficiency of electricity generation in photovoltaic modules installed in the Brazilian semiarid. To that end, the output power of a periodically cleaned module was compared with a naturally dirty module; in addition, the percentage output power, dirt deposition density and relationship between these variables were estimated. The study was carried out at the University of Pernambuco, in the city of Petrolina, PE, Brazil, during dry and rainy periods. Data were collected via a data acquisition system and dirt using glass slides. The results indicate that more than 15 days without rain significantly reduces the efficiency of photovoltaic modules installed in semiarid areas, reaching an 18.72% decrease in output power after 70 days.

Geoestatística multivariada para o delineamento de zonas de manejo para a alocação de experimentos agrícolas

Agricultural development relies heavily on experimental research and it is necessary to minimize soil variations for more accurate results. Therefore, the present work aims to quantify the spatial variability of soil attributes and to define more homogeneous Management Zones (MZs) through the multivariate geostatistics to allocate agricultural experimental areas. The experiment was carried out in Petrolina city, Pernambuco state, Brazil. Disturbed soil samples were collected following a sample grid with 56 georeferenced points in the layers of 0.00 to 0.20 m and 0.40 to 0.60 m depth. The granulometric and chemical analyzes of the soil were performed. Principal components (PC) analysis was performed. The spatial dependence of the analyzed variables and the CP was verified using experimental semivariogramas. Maps were obtained by the ordinary Kriging interpolator. The delimitation of the MZ was performed using the fuzzy c-means clustering algorithm. The results showed that in the CP the attributes related to soil acidity predominated and that the area should be delimited in three zones. The MZs delimitation using CP showed as an important tool in assisting the allocation of agricultural experiments, reducing the error arising from the heterogeneity that may occur within the experimental blocks.

Occurrence of antibodies to Leptospira spp and Toxoplasma gondii in captive wild animals in the Zoobotanical Park of Petrolina, PE, Brazil

OBJECTIVE: Leptospirosis and toxoplasmosis are cosmopolitan zoonoses affecting domestic and wild animals that can inhabit urban environments acting as reservoirs of infectious agents, increasing the risk of zoonotic diseases transmission to humans. The present study aimed to detect serum antibodies to Leptospira spp. and Toxoplasma gondii in captive wild animals from the Zoobotanical Park, located in the city of Petrolina, State of Pernambuco, Brazil. METHODS: Samples were collected from 72 wild animals, including 12 mammals, 26 birds, and reptiles. Serological diagnosis for anti-T. gondii antibody detection was performed on birds and mammals using the modified agglutination test (MAT Toxo). Anti-Leptospira spp. antibodies were detected in reptiles and mammals by microscopic agglutination test (MAT Lepto). RESULTS: The occurrence of T. gondii antibodies was 56.4% (22/39), with positive animals from the genera: Procyon cancryvorus (1/2), Ara ararauna (4/4), Patagioenas picazuro (5/5), Amazona aestiva (5/5), Aratinga acuticaudata (3/3), Tayassu tajacu (2/2), Nasua nasua (1/1) and Cerdocyon thous (1/1). Anti-Leptospira spp. antibodies were found in 4.4% (2/45) of the animals, with one out of the two Tamandua tetradactyla positive for the subgroup Australis and one out of the 23 Geochelone carbonaria positive for the subgroup Hebdomadis. CONCLUSION: Captive wild animals from zoos can take part in the life cycle of these agents, acting as reservoirs, thus assuming an important role in the epidemiological chain of these important zoonotic agents.

Estudo preliminar dos fatores associados a quedas em idosos

Introdução: A queda é um problema de saúde pública e a identificação dos fatores associados constitui importante estratégia na prevenção da saúde. Objetivo: Identificar a frequência de quedas e fatores associados entre idosos adscritos a uma Unidade Básica de Saúde (UBS). Metodologia: Estudo transversal realizado em UBS do município de Petrolina, PE (Brasil) envolvendo 40 idosos com idade ≥60 anos. Para avaliação socioeconômica, estado geral de saúde, histórico de quedas e medo de cair foram utilizados questionários estruturados. O Mini Exame do Estado Mental (MEEM) foi utilizado como indicativo da função cognitiva e para avaliação do risco de queda utilizou-se o Timed Up And Go (TUG). Em adição, realizou-se avaliação antropométrica. Foram calculadas a distribuição das frequências absolutas e relativas, e os intervalos de confiança de 95% (IC95%). Associações entre a ocorrência de queda e as demais variáveis foram calculadas por meio dos testes Qui-Quadrado ou Exato de Fisher. Resultados: Foram incluídos 38 idosos, com mediana de idade 68,5 anos, 42,1% (n=16) apresentaram histórico de pelo menos uma queda nos últimos 12 meses e 21,1% (n=8) deixaram de realizar alguma atividade por medo de cair. Não foram verificadas associações significativas entre ocorrência de queda e as variáveis idade, sexo, diabetes mellitus, hipertensão arterial sistêmica, risco de queda, medo de cair, déficit visual e doença osteoarticular. Conclusão: A frequência de quedas foi elevada entre os idosos analisados e não foi observada associação significativa entre ocorrência de queda e os fatores preditores analisados.

Global Horizontal and Direct Normal Solar Irradiance Modeling by the Machine Learning Methods Xgboost and Deep Neural Networks with CNN-LSTM Layers: A Case Study Using the GOES-16 Satellite Imagery

Restrictive legislations over the usage of fossil fuels are encouraging the research on clean and renewable energies. As a drawback, renewable energies are characterized by having random behavior, which hampers its integration on the current energy base system. Thus, solar irradiation estimation is important to a better assimilation of the renewable energies into the energy matrix. In this paper, two machine learning (ML) estimation models for global (GHI) and direct normal solar irradiance (DNI) are proposed: the first using XGBoost and the second using a hybrid convolutional neural network (CNN) with a long short-term memory (LSTM), CNN-LSTM. Both models use images from the GOES-16 satellite, taken from the city of Petrolina, Brazil. The results of the proposed models are analyzed against the reference models Copernicus Atmosphere Monitoring Service (CAMS), Solcast and the Physical Solar Model (PSM) provided by the National Solar Radiation Database (NSRDB). For GHI estimation, the PSM model reached the smallest RMSE, equal to 147.23 W/m^2, while the model CNN-LSTM was the best one to estimate DNI with a RMSE equal to 238.22 W/m^2. The proposed model managed to improve RMSE when compared against the benchmarking models by 2.89 % and 1.70 % for CNN-LSTM and XGBoost, respectively.

Multiparametric statistical and dynamical analysis of angular high-frequency wind speed time series

High frequency data from the city of Petrolina, Northeast Brazil, are used to find the wind speed projection series at different angles, which are then analyzed by using several statistical tools: detrended fluctuation analysis (DFA), multifractal detrended fluctuation analysis (MFDFA) and Fisher–Shannon analysis (FSA). It is found that α, the DFA scaling exponent, varies between 0.6 (indicating weak persistence) and unity (strong persistence), at different time frames and at different projection angles. At lower projection angles wind speed is characterized by higher heterogeneity, lower disorder, higher organization and relative dominance of small fluctuations. The statistical analysis of wind speed with varying the direction could contribute to enrich the knowledge of the dynamics of wind speed.

Evaluation of Photovoltaic Microgeneration Systems Connected to Utility: Cases Studies in Petrolina

This work evaluated the performance of small-scale photovoltaic systems installed in Petrolina city, Brazil, operating under different meteorological conditions, through real production measurements, electrical quantities, inverter efficiency, also merit indices such as final yield and capacity factor. The measurement data showed the versatility of the inverters under different loading conditions, as well as correct operation in face of phenomena such as anti-islanding and clipping. It was verified that changes in meteorological conditions don't affect the efficiency, remaining almost always higher than 95%, except for loading levels lower than 5%. The merit indices enabled the comparison between different photovoltaic systems, confirming the high energy potential in the Brazil northeast, regardless of the orientation used for the photovoltaic modules. The comparison between the actual production and the generation projections, revealed that the new irradiation indices, provided by Reference Center for Solar and Wind Energy Sérgio de S. Brito (CRESESB), present better agreement with the real data, allowing more reliable projection for photovoltaic generation.

PASSIVE DOSIMETRY: COMPARATIVE STUDY BETWEEN TWO EVALUATION METHODS OF OCCUPATIONAL EXPOSURE TO PESTICIDES

The present study aims to compare the passive dosimetry sampling and census methods for the evaluation of pesticide exposure. The studies were carried out in the city of Petrolina - PE, in the São Francisco River Valley, under three working conditions: weeds, grape and acerola cultivation with the use of a hand-held sprayer in the Brazilian summer. For data analysis, descriptive statistical parameters and Student's T-test were used to compare the means of paired samples. Both methods evaluated the simulated manual application of pesticides. Given the results, it was concluded that there was a high discrepancy between exposure assessments in all treatments, with the sample method showing overestimated values, with differences greater than 200% and that the census method showed more reliable and accurate results with greater efficiency.

PERFIL EPIDEMIOLÓGICO DE CASOS HIV/AIDS CADASTRADOS EM SERVIÇO AMBULATORIAL ESPECIALIZADO

Esta pesquisa objetivou conhecer o perfil epidemiológico dos usuários atendidos no serviço de referência para IST/HIV/Aids em Petrolina-PE. Trata-se de estudo descritivo com abordagem quantitativa, no qual foram analisadas fichas de notificação e investigação de HIV/Aids entre 2010 e 2014, totalizando 331 notificações. Observou-se evolução no número de notificações de casos Aids no período de 2009 a 2014, sendo a maioria do sexo masculino (58,3%), com faixa etária predominante de 31 a 50 anos (52,9%). Mais de 50% dos casos envolvia pessoas com baixa escolaridade. O provável modo de transmissão prevalente era por via sexual, mesmo nos casos com nível elevado de escolaridade, sendo os heterossexuais a categoria de maior exposição. Os sinais e sintomas de definição de caso prevalentes foram astenia, caquexia, diarreia crônica, febre persistente e contagem de Linfócitos CD4+ menor do que 350 cél/mm3. O perfil traçado demonstrou aumento de casos no sexo feminino, embora a maioria ainda seja do sexo masculino com baixo nível de instrução. Mesmo assim, a ausência de dados configurou-se como fator limitante para análise mais detalhada, impedindo que outros elementos pudessem ser identificados. Conhecer tais achados pode auxiliar à formulação de ações específicas que promovam educação e diminuam a cadeia de transmissão.

Caracterização físico-química e nutricional de farinhas obtidas de inhame (Dioscorea spp.) e taro (Colocasia esculenta) comercializados em Petrolina-PE

Objetivo: Caracterizar, sob análises físico-químicas e cálculos nutricionais, farinhas obtidas de inhame e taro comercializadas na cidade de Petrolina, localizada no interior de Pernambuco. Metodologia: Amostras de inhame (Dioscorea spp.) e taro (Colocasia esculenta) foram obtidas em estabelecimentos comerciais da cidade de Petrolina-PE. Posterior as etapas de sanitização, as amostras foram submetidas um processamento de trituração até obtenção de massa viscosa, sendo então, submetidas a secagem em estufa a 60°C até a completa desidratação. Posteriormente foram peneiradas e mantidas em sacos de polietileno até as análises físico-químicas. Cada farinha foi avaliada isoladamente quanto a composição centesimal e nutricional, incluindo valor calórico. Resultados: Padrões desejáveis nos componentes físico-químicos das farinhas dos dois “tubérculos” foram observados. A farinha de inhame apresentou superioridade entre os teores de proteína (p< 0.0001), fibra (p<0.0002) e amido (p<0.0003) em relação a farinha de taro. Enquanto, os teores de pH (p< 0.0001), lipídeos (p<0.0078), carboidratos (p< 0.0001), atividade de água (p<0.0001) e valor calórico (p<0.0053) foram maiores na farinha de taro. Conclusão: Ambas farinhas apresentaram perspectivas nutricionais relevantes, diferenciando em relação a determinados constituintes físico-químicos.

Application of the Cuckoo Search in the Adjustment of Weibull Curves for Wind Energy Using Wind Data of Petrolina City

In this work a Cuckoo Search (CS) applicability study was carried out using the methodology described by Yang and Deb (2009) in the optimization of Weibull curves, being implemented from an algorithm written in programming language R. The real velocity data were obtained from the National System for the Organization of Environmental Data (SONDA) platform for the city of Petrolina - PE, because it is located in a state with great potential for wind energy generation. The Cuckoo Search heuristic method was compared with six deterministic methods widely used in the literature from the results of the statistical tests Root Mean Square Error (RMSE), R 2 , Mean Absolute Error (MAE) and Power Density Error (EDP). With the objective function used, Cuckoo Search was satisfactory in the wind representation of the studied region, presenting RMSE of 0.006052, R 2 of 0.99348 and MAE of 0.003979, more desirable in relation to the other methods. Also, an EDP of approximately 1.12% above the actual power density was obtained, which makes it difficult to use for problems in which energy oversizing is not allowed.

Resistance of the Collateral Ligaments of the Femorotibial Joint in Domestic Dogs (Canis lupus familiaris LINNAEUS, 1758)

Introduction This work aimed to demonstrate the resistance of the femoral-tibial joint collaterals of 60 dogs of undefned breed, euthanized at the Zoonoses Control Centre of the city of Petrolina (PE), North-Eastern Brazil. Materials and Methods The femur-tibial articulation was dissected to expose the collateral ligaments. Bones were cut on the distal third of the femur and the proximal third of tibia and fibula. The knee joint was kept bound only by the collateral ligaments and then submitted to destructive mechanical tests, evaluating the deformation of the ligaments (mm) per unit of time, (seconds), and the joint resistance. Results We could observe no side effects of contralateral joints. In a destructive mechanical assay, we detected that the medial collateral ligaments ruptured earlier than the lateral ones. The resistance of the lateral and medial ligament of the right limb of females was respectively 537.1N ± 413.6 and 360.1N ± 228.6; while in males, were of 632.4N ± 333.4 e 440.4N ± 227.1. About the left antimere, the females presented 442.4N ± 288 resistance on the lateral ligament and 417.4N ± 190.6. In males, the resistance was 605.8N ± 316.1 e 548.6N ± 2,333.7, respectively. Conclusion The results of our research will allow the development of synthetic tissues to replace the natural ligament of dogs in cases of rupture or degeneration.

Aplicação da ferramenta SERVQUAL para mensurar a satisfação dos clientes em uma academia de ginástica em Petrolina – PE

Nesta pesquisa, objetivou-se realizar a aplicação prática do SERVQUAL para avaliar a qualidade dos serviços de uma academia de ginástica na cidade de Petrolina-PE. Assim, realizou-se uma pesquisa descritiva, para investigar os fatores determinantes que influenciam a qualidade na academia de ginástica. O trabalho foi embasado em levantamento bibliográfico dos temas principais, ou seja, dos serviços de academia de ginástica e da ferramenta SERVQUAL. Verificou-se que apenas a dimensão empatia se encontra com um nível de satisfação aceitável. As dimensões tangibilidade, confiabilidade, responsabilidade e segurança apresentaram insatisfação, portanto, foi proposto um plano de ação elencando os problemas encontrados mais relevantes e as sugestões de melhorias pontuais. Por fim, são apresentadas às conclusões, discutindo-se as possíveis causas dos gaps negativos e sugerindo-se a aplicação de outras ferramentas da qualidade a fim de atingir um nível melhor de satisfação sobre o serviço prestado.

Association between sleep quality and pain in the cervical region and scapular waist in adolescent athletes

The objective of this study was to identify the prevalence of poor sleep quality and assess its association with pain in the cervical and scapular waist in amateur adolescents athletes from the city of Petrolina (PE). The study included 309 adolescent athletes practicing many sports, aged between 10 and 19 years. The data collection was carried out using the following tools: (1) a structured questionnaire, containing personal information and concerning sports practice; (2) sleep quality index of Pittsburgh (PSQI); and (3) body diagram of Corlett, for localization of pain in the following body segments. A descriptive analysis was performed of the categorical and numeric variables, and to assess the association between two variables, we used the Chi-square test. Subsequently, it was held binary logistic regression, with an estimate of the odds ratio (odds ratio = OR) and 95% confidence intervals. The average age of participants was 14.16 (±12.12), being of 14.59 (±2.15) for boys and 13.58 (±1.95) for girls. The poor quality of sleep showed a prevalence of 28.2% and was shown to be associated with the variables age and presence of pain in the cervical region and scapular waist. Adolescents aged between 15 and 19 years have OR = 3.40 (95% CI 1.89–6.12) and those who reported pain in the cervical region and scapular waist feature OR = 3.00 (95% CI 1.53–5.97) for poor quality of sleep. In this way, it is concluded that adolescent athletes older and with pain in the cervical region and scapular waist have more chances to present bad sleep quality.

Microclimate evaluation in the city of Petrolina, Pernambuco, Brazil, using sensing techniques

O processo de urbanizacao e um agente ativo nas modificacoes e alteracoes no microclima de um ambiente urbano. De modo, que a falta de um planejamento urbano incorporado as variaveis climaticas regionais e locais potencializa as condicoes de absorcao de acentuada carga termica da superficie, acarretando temperaturas mais elevadas na area urbana das cidades. Desse modo, a pesquisa teve como objetivo avaliar a sensacao termica do municipio de Petrolina-PE, de modo a obter informacoes quanto as caracteristicas microclimaticas das areas de temperaturas mais altas do municipio de Petrolina-PE, como tambem compreender a distribuicao das fontes de calor na area de estudo a partir das estimativas da temperatura de superficie (Ts) e indice de vegetacao da diferenca normalizada (IVDN). Essa avaliacao foi realizada por meio de imagens obtidas do satelite TM LANSAT 5, valores de temperatura media do ar e dados historicos de precipitacao (INMET), como tambem o Indice Simplificado , que representa os niveis de desconforto termico. Nesta pesquisa, foi utilizado o software SURFER 2.12.1 , com mapeamentos mostrando valores elevados (cerca de 38 oC) para a variacao diaria da temperatura media do ar, acarretando em estresse termico por aquecimento. Em todo periodo de estudo, a populacao foi submetida aos alertas de atencao e muito cuidado, situacao em que o metabolismo celular do organismo aumenta, assim como a producao de calor; de modo que o organismo comeca a apresentar sintomas como intensa sudorese e alteracao na respiracao e frequencia cardiaca, podendo apresentar possivel de sincope de calor. Tambem foi utilizado o software ERDAS Imagine 9.2 , que por meio do IVDN mostrou que as areas com ausencia de vegetacao ou areas construidas apresentaram as maiores temperaturas, estando os menores valores de temperatura nas areas com vegetacao densa. Por fim, foi observado que o comportamento dos valores da temperatura media diaria do ar mapeadas pelo software SURFER , mostrou concordância com os valores maximos da temperatura da superficie apresentados atraves dos mapas tematicos do software ERDAS . Normal 0 false false false PT-BR X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:Tabela normal; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:Calibri,sans-serif; mso-ansi-language:PT-BR; mso-fareast-language:PT-BR;} A B S T R A C T The process of urbanization is an active agent in the modifications and changes in the microclimate of an urban environment. The lack of an urban planning incorporated into regional climatic and local variables enhances the absorption conditions of severe thermal load surface, resulting in higher temperatures. Thus, the research aimed to evaluate the thermal sensation of the city of Petrolina, in order to obtain information on the microclimate of the high temperature areas and understand the distribution of heat sources from estimates of temperature surface (Ts) and vegetation index normalized difference (IVDN). This evaluation was performed using the obtained TM LANSAT 5 satellite images, average temperature values of the air and precipitation data (INMET) and Simplified Index, which represents the levels of thermal discomfort. It used the software SURFER with maps showing high values (about 38 ° C) for the daily variation of the average air temperature. In any period, the population was subjected to warnings of attention and care, increasing cell metabolism and heat production in the body, which begins to show symptoms such as severe sweating and changes in breathing and heart rate. It was also used the software ERDAS Imagine , for which the IVDN showed that areas with no vegetation or built up areas had the highest temperatures. Finally, it was observed that the behavior of the values of the average daily air temperature showed agreement with the maximum values of Ts. Keywords: surface temperature, wind chill, microclimate, Petrolina-PE

REQUERIMENTO HÍDRICO E COEFICIENTE DE CULTURA DO MILHO E FEIJÃO-CAUPI EM SISTEMAS EXCLUSIVO E CONSORCIADO

RESUMO: Objetivou-se determinar a necessidade de água e o coeficiente de cultura para as diferentes fases fenológicas do milho ( Zea mays L) e do feijão-caupi ( Vigna unguiculata (L) Walp) em sistemas de plantio exclusivo e consorciado sob as condições climáticas do Semiárido brasileiro. O experimento foi conduzido no município de Petrolina, PE. Foram monitorados o rendimento de matéria seca total da parte aérea e a radiação fotossinteticamente ativa interceptada para ambas as culturas. Além disso, obteve-se a evapotranspiração da cultura (ETc) por meio do método do balanço de água no solo. Com estes dados e a evapotranspiração de referência foi obtido o coeficiente de cultura (Kc), os quais foram utilizados, posteriormente, para ajustar modelos em função dos graus dias acumulados. Com os resultados, constatou-se que o requerimento hídrico do milho e feijão-caupi no sistema de plantio consorciado foi maior que no sistema exclusivo. Os valores de Kc no consórcio foram de 0,90, 1,30, 1,20 e 0,72 para o milho, e 0,86; 1,30, 1,21 e 0,91 para o feijão-caupi, respectivamente, para as fases vegetativa, floração, enchimento de grãos e maturação. No sistema exclusivo esses valores foram de, 0,86, 1,23, 0,97 e 0,52 para o milho e de 0,68; 1,02, 1,06 e 0,63 para o feijão-caupi, nesta ordem. As variações dos valores de Kc para ambos os sistemas e culturas estiveram associadas ao incremento de biomassa e a interceptação da radiação. O modelo Gaussiano ajustado descreveu adequadamente a relação entre os valores de Kc e dos graus dias acumulados.

Qualidade do Carí em feiras na cidade de Petrolina - PE

The region of Sertao in the State of Pernambuco (Brazil) has great potential for the development of fishing and aquaculture, considering the presence of the Sao Francisco River and sun, both fundamental elements for fish growth. Among the fish species present in the region, Rhinelepis aspera or “Cari” (Siluriformes, Loricariidae) may be targeted, considering the taste of its meat. The aim of the present study was to study the physical and chemical parameters of fresh “Cari” meat according to the standards developed by the Adolfo Lutz Institute and to estimate its freshness using the H2S production test. The fish used in this study were purchased from the main fish markets of the City of Petrolina (Pernambuco State, Brazil) and had been caught in the Sobradinho Lake (State of Bahia), 30 km from the city. The fish were chosen for their appearance and freshness. The fish were filleted to calculate the yield percentage and were prepared for further analyses. According to our results, “Cari” filets have 11% protein, 0.63% lipids, and 0.89 water activity. Some samples showed a positive H2S test, indicating initial stages of degradation. The results of this study suggest that the fish “Cari” has suitable characteristics for consumption; however, the storage conditions were inadequate in the study area.