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Imported African histoplasmosis by Histoplasma capsulatum var. duboisii in an H...
Toscano, C.; Batista, J.; Carvalho, R.; Espírito-Santo, C.E.; Marcos, R.; Sabino, R.; Verissimo, C.; Viana, I.; Marques, T.Objectives: African histoplasmosis caused by the fungus Histoplasma capsulatum var. duboisii, is a rare endemic mycosis occuring in western and central regions of sub-Saharian Africa. For unknown reasons, although HIV infection and H. capsulatum var. duboisii coexist in Africa, this coinfection remains rare. In Europe, diagnosed cases of African histoplasmosis are all imported. We describe a case of African his...
Synthesis and characterization of new 3-substituted thiophene copolymers
Alves,Marcos R. A; Calado,Hállen D. R; Donnici,Claudio L; Matencio,TulioThis work reports the synthesis of three polymers and two new copolymers based on 3-substituted polythiophene derivatives, all of them demonstrated photoluminescent properties. All polymers synthesized, i.e., poly(3-methoxythiophene) (PMOT), poly(3-thiopheneethanol) (PTE), poly(3-thiophenemethanol) (PTM), poly(3-methoxythiophene-co-3-thiopheneethanol) (PMOT-co-TE) and poly(3-methoxythiophene-co-3-thiophenemetha...
Pesticidas no perfil de solos em áreas de plantação de cebolas em Ituporanga, SC
Pinheiro,Adilson; Moraes,João C. S; Silva,Marcos R. daObjetivou-se com este trabalho avaliar as concentrações de resíduos de pesticidas no perfil do solo sob cultura de cebola, no município de Ituporanga, em Santa Catarina. Coletas de amostras foram realizadas nas profundidades de 0 a 20, 40 a 60 e 80 a 100 cm, em três áreas com plantação de cebola. Nestas áreas são realizadas rotações de cultura, abrangendo o milho, cebola, batata, feijão e beterraba. Três séries...
Variabilidade espacial da umidade de um Latossolo Vermelho-Amarelo sob plantio ...
Sampaio,Fabrício de M. T.; Ferreira,Mozart M.; Oliveira,Marcelo S. de; Almeida,Alberto C.; José,Marcos R.O estudo da dependência espacial de atributos do solo é importante para aprimorar as práticas de manejo e de amostragem. Este trabalho teve o objetivo de estudar a variabilidade espacial da umidade de um Latossolo Vermelho-Amarelo sob plantio direto, cultivado com milho, e sua relação com o carbono orgânico total do solo, macroporosidade e microporosidade. A pesquisa foi conduzida em uma área localizada no muni...
Degradação eletroquímica do cloranfenicol em reator de fluxo
Rezende,Luis Gustavo P.; Prado,Vânia M. do; Rocha,Robson S.; Beati,André A. G. F.; Sotomayor,Maria Del Pilar T.; Lanza,Marcos R. V.This paper reports a study of electrochemical degradation of the chloramphenicol antibiotic in aqueous medium using a flow-by reactor with DSA® anode. The process efficiency was monitored by chloramphenicol concentration analysis with liquid chromatography (HPLC) during the experiments. Analysis of Total Organic Carbon (TOC) was performed to estimate the degradation degree and Ion Chromatography (IC) was perfor...
Variação dos teores de constituintes voláteis de Cymbopogon citratus (DC) Staf,...
Furlan,Marcos R.; Martins,Roberto Carlos C.; Rodrigues,Eliana; Scalco,Nayara; Negri,Giuseppina; Lago,João Henrique G.O óleo essencial extraído de Cymbopogon citratus (DC) Staf, Poaceae, é rico em citral sendo amplamente empregado na indústria química e farmacêutica. Os objetivos desse estudo foram avaliar o conteúdo de citral entre populações de C. citratus coletados em duas regiões diferentes (Ibiúna e Pindamonhangaba, Estado de São Paulo). O óleo essencial extraído de uma população cultivada em Pindamonhangaba-SP apresentou...
Application of a biomimetic sensor based on iron phthalocyanine chloride: 4-met...
Boni,Ana Carolina; Sotomayor,Maria D. P. T.; Lanza,Marcos R. V.; Tanaka,Sônia Maria C. N.; Tanaka,Auro A.The construction and application of a biomimetic sensor for determination of 4-methylbenzylidene camphor (4-MBC), an ultraviolet (UV) radiation protector, are described. The sensor was prepared by modifying a carbon paste electrode with iron(III) phthalocyanine chloride (FePcCl). Amperometric measurements carried out with the sensor under an applied potential of 0.0 V vs. Ag ; AgCl in a mixture of tetrahydrofu...
Is West Nile virus a potential cause of central nervous system infection in Bra...
Soares,Cristiane N; Castro,Mauro J. Cabral; Peralta,José M; Freitas,Marcos R.G. de; Puccioni-Sohler,MarziaMeningitis and encephalitis are complications of West Nile virus (WNV) infection. Although WNV is endemic in North America, the virus has recently been reported in Colombia and Argentina. Investigation of WNV in Brazil is important since this virus has never been studied previously in this country. OBJECTIVE: To investigate the presence of WNV infection in viral encephalitis/meningitis cases of unknown etiology...
Intersexuality in a crab-eating fox (Cerdocyon thous)
Mattos,Marcos R.F.; Simões-Mattos,Lucilene; Pilati,Célso; Silva,Lúcia D.M.; Domingues,Sheyla F.S.Intersexuality is a reproductive pathology that has been described in wild animals in recent years. However, its occurrence and consequences remain obscure and therefore all aspects of this reproductive disorder deserve attention. The aim of this study is to report a case of intersexuality with probable absence of gonadal tissue in the crab-eating fox (Cerdocyon thous) native to Brazil. The animal has male exte...
Tifton grass yield on constructed wetland used for swine wastewater treatment
Matos,Antonio T.; Freitas,Wallisson S.; Martinez,Mauro A.; Tótola,Marcos R.; Azevedo,Aristéa A.It is the purpose of this study to evaluate the agronomic behavior and yield of the Tifton 85 grass (Cynodon dactylon Pers), when used in the treatment of swine wastewater (SW) with constructed wetland systems (CWs). For this purpose, five tanks were built measuring 24 x 1.1 x 0.7 m, damp-sealed with PVC canvas and filled with 0.4 m crushed stone. In two of these tanks, Tifton grass was cultivated: one of the t...
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