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

A reference taxonomic collection deposited in the Department of Paleontology of the Museum of Natural History “Vera Alleman Haeghebaert” of Ricardo Palma University consists of the identifi cation, registration and description of seventeen specimens of the genus Raimondiceras Spath 1924, of which twelve specimens were attributed to the species Raimondiceras raimondii (Gabb, 1877). Th e initial taxonomic study was based on the publications of William More Gabb and Carlos Lissón. In addition, the identifi cation key of the Ammonoidea species of the Morro Solar Group, Valanginian-Hauterivian de Lima, Peru was used. Having lost all the “types”, original specimens of the species, we intend to start the complementary and updated description of the species. Th e place where Antonio Raimondi and Carlos Lissón obtained the fi rst specimens of R. raimondii was specifi ed: the La Herradura Formation outcrops in the hills of the Morro Solar de Chorrillos, Lima. Raimondiceras raimondii was found only in the La Herradura Formation.

The visit of Phoenicopterus chilensis (Molina, 1782) to the wetlands of the Callao Region, Peru from April to January is reported in variable numbers from one to 14 individuals. The observations were made of adults, juveniles and immatures. The oldest record for these wetlands is the one reported in August 1998 by Edward Brinkley and the largest; record of P. chilensis was in August 2017 with 14 individuals.

This study determined the hourly variations in the concentration of methane (CH4), carbon dioxide (CO2), and oxygen (O2) during 24-hour periods in a sanitary landfill located in Northeast Brazil, with a predominantly hot tropical mild semi-arid climate. Data were collected over 24 hours in four campaigns in November 2014 and January, March, and April 2015. The measurements were taken in a drain of the sanitary landfill using a portable gas analyzer. We found that, in general, the highest methane concentrations corresponded to the highest biogas temperatures. The maximum concentration of CH4 (59.2%) occurred at a temperature of 36.8ºC, while the minimum concentration of CH4 (43.2%) was identified at a temperature of 25.4ºC. No relationship was found between CH4 emissions and rainfall, with temperature being the factor that most influenced the concentration of this gas.  

Serviços de saúde animal são potenciais geradores de impactos ambientais,e é crescente o número de animais de estimação nas cidades. Com oobjetivo de conhecer representações sociais de profissionais de um hospitalveterinário sobre possíveis impactos ambientais de suas atividades, e deidentificar se esse tema vem sendo abordado em cursos de medicinaveterinária, realizou-se um estudo de caso, por meio de entrevistasqualitativas, e a análise das grades curriculares de seis cursos de veterinária.Embora os entrevistados tenham tido dificuldades para explicitar o quesão impactos ambientais, reconheciam a importância de minimizar efeitosnegativos ao ambiente e à saúde humana. Nas grades dos cursos analisados,as disciplinas sobre questões ambientais possuíam carga horária poucorelevante em comparação à carga horária total. Recomenda-se ampliar aabordagem teórico-prática da temática ambiental em cursos de medicinaveterinária e a formação continuada de todos os profissionais que atuamem serviços de saúde animal.

The objective of this research was to evaluate the influence of climaticvariables of air temperature and rainfall on the occurrence of Chikungunyafever (CHIKF). The study was conducted from 2016 to 2018, with applicationarea in the municipality of Belém (PA). The variables were analyzedbased on descriptive statistics from which mean, standard deviation,coefficient of variation, median, minimum and maximum were determined.Normality tests were performed to define by using the parametric ornonparametric correlation tests. For the variables that presented statisticalsignificance, the multiple linear regression analysis was performed.Seasonality was confirmed with higher CHIKF records in the first half of theyear, when the highest rainfall and mildest temperatures in the region arerecorded. Pearson’s correlation identified an association between CHIKFoccurrences and temperature and precipitation variables in 2016, whichpresented respectively positive and weak association and negative and weakassociation. In Belém, local climatic characteristics favor the maintenance ofChikungunya fever, however in the study of arboviruses other factors such associal and environmental factors should be considered.

Este artigo tem como escopo o estudo do processo de difusão das compras públicas sustentáveis no Brasil e, de forma mais específica, em uma instituição de caráter federal, tendo em vista que, na última década, a evolução normativa envolvendo tal tema tem considerado a possibilidade de estas nãoconsiderarem somente os aspectos econômicos quando da sua realização. A instituição escolhida foi o Instituto Federal de Educação, Ciência e Tecnologia do Ceará — Campus Iguatu. Foram analisados todos os seus processos de aquisição no exercício de 2015. O intuito da pesquisa foi analisar se ainstituição adotou critérios de sustentabilidade, quando das compras públicas, quais critérios foram adotados e como ocorreu essa inserção. A pesquisa teve caráter descritivo e exploratório, e a abordagem foi qualitativa. Ao final, ficou demonstrado que o Instituto Federal de Educação, Ciência e Tecnologiado Ceará — Campus Iguatu, no ano analisado, possuiu percentuais acima da média nacional, quanto à adoção de critérios de sustentabilidade.

Analisou-se a capacidade preditiva de dois modelos de avaliação do risco pela exposição ao chumbo (Pb) em crianças de 0 a 7 anos residentes em uma área comprovadamente contaminada por metais. Os modelos utilizados foram o Integrated Exposure Uptake Biokinetic (IEUBK) e o modelo Public Health Assessment Process. Dois cenários de exposição foram simulados, o primeiro considerado padrão e o segundo individualizado. Foram utilizados antecedentes de uma base de dados gerada mediante estudos anteriores realizados na área contendo valores individuais de concentração de Pb no solo superficial, poeira domiciliar e alimentos vegetais cultivados em quintais e consumidos pela população local. Para verificar as estimativas de ambos os modelos, valores de Pb no sangue (Pb-S) obtidos de forma experimental em crianças residentes na área de estudo foram utilizados. Ambos os modelos, após calibração, se aproximaram ao valor médio de Pb-S obtido experimentalmente (4,25 μg.dL-1 ATSDR; 4,17 μg.dL-1 IEUBK e 4,56 μg.dL-1 experimental). Não foram detectadas diferenças estatisticamente significativas, entre os modelos (p=0,393), quando avaliados os valores médios estimados de Pb-S no cenário sem consumo vegetais. Foi possível observar uma associação linear moderada entre os valores individuais de Pb-S previstos pelo modelo da ATSDR e os calculados pelo modelo IEUBK (r=0,60). Ambos os modelos se apresentaram adequados, quando ajustados, para avaliar o risco pela exposição ao Pb em crianças, contudo, o modelo IEUBK apresentou uma maior praticidade relacionada à economia de recursos e tempo para predizer o risco pela exposição ao Pb.

The monitoring of residual drugs in the environment has been gainingattention, as they are frequently detected in sewage treatment plants (STP)and reach the water bodies. Therefore, the aim of this study was to evaluatethe presence, concentration and percentage of anti-inflammatory removalin samples of raw sewage and treated effluent from the sewage treatmentplant of Dracena-SP. Two collection points were assessed at the STP namedP1 (raw sewage) and P2 (treated effluent). The collections and analyses wereperformed from March 2017 to February 2018. The samples were preparedby dispersive liquid-liquid microextraction and analyzed by high performanceliquid chromatography. The presence of the drugs diclofenac, ibuprofen andnaproxen was detected in the two analyzed points of the STP. Ibuprofen wasthe compound with the highest concentration in raw sewage (95.92 μgL-1).In winter months, the lowest concentrations of anti-inflammatory drugs inthe raw sewage and the lowest percentages of drug removal in the STP wererecorded. In July, ibuprofen and naproxen were not detected in P1 nor P2.The presence of these drugs in raw sewage is attributed to the disposal of medicines in sinks and toilets, as well as excretion via faeces and urine with drug residues that are not fully absorbedby the human body. The treatment of domestic sewage through stabilization ponds does not completely remove theseanti-inflammatories, providing the input of these substances in surface waters, altering their quality.

Carbon stock (EstC) and soil aggregation were studied in and around forestfragments of the Atlantic Forest (AF) and Cerrado (CE) biomes. Soil sampleswere collected from four forest fragments; two in AF and two in CE. Inthe fragments, three internal points were sampled: edge (EF), half radius(HR) and center (FC), besides a point around; no-tillage system (NTS) andpermanent pasture (PP) in AF and CE, respectively. Total organic carbon(TOC) and soil density (Sd) were determined with EstC calculations andaggregate stability. In AF, Sd reached 1.19 Mg m-3. Higher TOC and EstCcontents were verified in the FC, reducing the FC EstC for more peripheralpoints. Less soil structural stability was found in the surrounding NTS areas.The areas of PP around the CE fragments presented higher Sd. The TOCcontents and EstC values were heterogeneous between the internal pointsof the CE fragments. In the CE fragments, the structural variables did notdiffer from the surrounding PP areas. The TOC and EstC indicate the mostconserved FC point in the AF fragments. In CE, the PP areas presented thesame potential of carbon accumulation in subsurface layers in relation tothe fragments. Forest fragmentation, in both studied biomes, modified thephysical attributes of the soil, besides influencing the carbon storage patternsinside the fragments.

This research aimed to analyze the relationships between total phosphorus(P), total nitrogen (N), and chlorophyll a (Cla) in a small urban reservoir and inrural reservoirs. A field study was carried out on the urban reservoir, located atFortaleza, Ceará, to analyze the water quality parameters and then compare theresults with historical data of 35 rural reservoirs located in the semiarid regionof the Brazilian northeast, in the state of Ceará. Empirical correlations weredeveloped among these nutrients and Cla. Then, different levels of nutrient loadreduction were analyzed with the empirical correlations obtained and the waterquality complete moisture hypothesis, whose phosphorus decay coefficientused was the one developed for semiarid regions. The results showed that Pbest described the concentration of Cla in all reservoirs, using power adjustmentequations. It was also shown that the concentrations of P in the urbanreservoir were higher than those of the rural ones, with a mean of 1,76 mg/Land a N:P correlation of approximately 1, while the rural reservoirs had meanconcentrations between 0,04 – 0,59 mg/L and N:P between 5 – 50. The analysisof the different load scenarios showed that different levels of P load reductioncould be adopted depending on the P and Cla concentrations desired. Finally,it was concluded that the models proposed are applicable and useful as a meansto aid decision making in the management of water resources.