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991.
Fernanda Pozzan Paim Kim Valenta Colin A. Chapman Adriano Pereira Paglia Helder Lima de Queiroz 《Primates; journal of primatology》2018,59(4):395-404
Integration between ecology and biogeography provides insights into how niche specialization affects the geographical distribution of species. Given that rivers are not effective barriers to dispersal in three parapatric species of squirrel monkeys (Saimiri vanzolinii, S. cassiquiarensis and S. macrodon) inhabiting floodplain forests of Central Amazonia, we tested whether forest structure and tree diversity may explain species differences in niche specialization and spatial segregation. We sampled 6617 trees of 326 species in three habitats (high várzea, low várzea and chavascal) used by three Saimiri species, and estimated tree species richness in each of them. For each tree, we measured variables known to influence habitat use in primates, such as crown area and presence of lianas, epiphytes and hemi-epiphytes. We used ANOVA to compare these variables and performed multivariate analyses (NMDS, ANOSIM and SIMPER) to evaluate dissimilarities in forest structure among each habitat inhabited by the three Saimiri species. We identified differences in the tree species richness, crown area and presence of lianas, epiphytes and hemi-epiphytes between the three habitats for all Saimiri species. NMDS demonstrated that areas of high and low várzeas occupied by S. vanzolinii were clearly separated from the other species. We also found that different plant species contributed to dissimilarity among Saimiri ranges. Our findings support the hypothesis that tree community structure may promote niche specialization and spatial segregation among primates. We discuss how these patterns could have been favored by historical changes in forest flood patterns, the evolutionary history of Saimiri spp., and past competition. 相似文献
992.
Colorimetric protein determination in microalgae (Chlorophyta): association of milling and SDS treatment for total protein extraction
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Elba P. S. Bon Marcoaurelio A. Rodrigues Suely Pereira Freitas 《Journal of phycology》2018,54(4):577-580
The use of colorimetric methods for protein quantification in microalgae is hindered by their elevated amounts of membrane‐embedded intracellular proteins. In this work, the protein content of three species of microalgae was determined by the Lowry method after the cells were dried, ball‐milled, and treated with the detergent sodium dodecyl sulfate (SDS). Results demonstrated that the association of milling and SDS treatment resulted in a 3‐ to 7‐fold increase in protein quantification. Milling promoted microalgal disaggregation and cell wall disruption enabling access of the SDS detergent to the microalgal intracellular membrane proteins and their efficient solubilization and quantification. 相似文献
993.
Lucas Roberto Pereira Gomes Márcia Souto Couri Claudio José Barros de Carvalho 《Revista Brasileira de Entomologia》2018,62(1):51-56
Drepanocnemis Stein (Diptera, Muscidae) is a small genus of flies that occur in high altitudes in the Colombian Andes, Ecuador, Peru and Bolivia. Herein we describe Drepanocnemis aurifronssp. nov. from Cuzco, Peru, which is found from high (2904 m) to lower altitudes (707 m). An updated phylogeny, key to species and map of species’ distributions are provided, together with images and illustrations of the male and the female terminalia. 相似文献
994.
995.
Mariana Volpe Arnoni Claudete Rodrigues Paula Marcos Ereno Auler Cirilo Cesar Naozuka Simões Shirley Nakano Maria Walderez Szeszs Márcia de Souza Carvalho Melhem Virgínia Bodelão Richini Pereira Hans Garcia Garces Eduardo Bagagli Eriques Gonçalves Silva Melissa Ferreira de Macêdo Luciana da Silva Ruiz 《Mycopathologia》2018,183(6):941-949
Fusarium species have emerged as responsible for a broad spectrum of infections, including superficial, locally invasive and disseminated ones, especially in the hospital environment. Since there are few reports of invasive and disseminated fusariosis in children, the aim of this study was to report four cases of nosocomial infection caused by this microorganism in children with cancer hospitalized in a public children’s hospital located in Brazil. Two of these patients were female and two were male. All patients presented febrile neutropenia, while three patients had acute lymphocytic leukemia and one patient had Wilms’ tumor as underlying disease. In two cases, fungi were isolated from blood and identified as Fusarium oxysporum species complex after phenotypic and genotypic studies, while in two other cases fungi were isolated from skin biopsies and identified as Fusarium solani species complex. One patient died 12 days after the onset of cutaneous lesions. All isolates, after susceptibility testing, presented high levels of minimum inhibitory concentration for itraconazole, voriconazole and amphotericin B. Considering the emergence of filamentous fungi as etiologic agents of nosocomial infections, health professionals should be aware of the problems these infections, especially fungal ones, may cause to debilitated patients. 相似文献
996.
997.
Fatal primary diffuse large B‐cell lymphoma of the maxillary sinus initially treated as an infectious disease in an elderly patient: A clinicopathologic report
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Mayara Santos de Castro Cínthia Magalhães Ribeiro Marina Lara de Carli Alessandro Antônio Costa Pereira Felipe Fornias Sperandio Oslei Paes de Almeida João Adolfo Costa Hanemann 《Gerodontology》2018,35(1):59-62
Objective
To report a case of primary diffuse large B‐cell lymphoma (DLBCL) of the maxillary sinus in an 82‐year‐old Caucasian woman.Background
Diffuse large B‐cell lymphoma of the maxillary sinus has non‐specific signs and symptoms that may be confused with benign inflammatory conditions and upper respiratory infections.Methods
An incisional biopsy was performed. CD20+/CD3–/Ki‐67: 95% cells were observed.Conclusion
A good medical history, clinical and imaging evaluations and immunohistochemical reactions are crucial to establish a correct and early diagnosis of DLBCL. 相似文献998.
Geraldo Jose Ferrari Junior Christopher L Drake Diego Grasel Barbosa Diego Augusto Santos Silva Gomes Felden Érico Pereira 《Chronobiology international》2018,35(8):1088-1094
The present study aimed to analyze the construct validity of the Pediatric Daytime Sleepiness Scale (PDSS) for the evaluation of the daytime sleepiness construct in adolescents through confirmatory factorial analysis. The cross-sectional study was carried out with a sample of 773 adolescents aged 14 to 19 years, enrolled in the state schools of Paranaguá, Paraná, Brazil. We investigated the sex, age, school year, study shift, occupational status, socioeconomic level and daytime sleepiness. The PDSS questions were not normal (p <0.001) and the mean total score was 14.87 (5.62). With Schwarz’s BIC adjustment indicators = 142,389 and Akaike’s AIC = 105,389, the model reached the criteria of the global adjustment indicators of the model in the confirmatory analysis, in which RMSEA = 0.020; CFI = 0.986; TLI = 0.977; SRMR = 0.021, with 17 degrees of freedom, KMO = 0.8504 and Cronbach’s Alpha = 0.737, with three correlations. We conclude that the construct validity of the PDSS remains valid and confirms its factor structure with only one factor. Thereby, it was verified that the operationalization of the construct sleepiness of adolescents through this scale is adequately conceptualized to the behavior of the age group. 相似文献
999.
Joost Willebrords Michaël Maes Isabel Veloso Alves Pereira Tereza Cristina da Silva Veronica Mollica Govoni Valéria Veras Lopes Sara Crespo Yanguas Valery I. Shestopalov Marina Sayuri Nogueira Inar Alves de Castro Anwar Farhood Inge Mannaerts Leo van Grunsven Jephte Akakpo Margitta Lebofsky Hartmut Jaeschke Bruno Cogliati Mathieu Vinken 《生物化学与生物物理学报:疾病的分子基础》2018,1864(3):819-830
1000.