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Search Results: 1 - 10 of 3652 matches for " Norinne;Queiroz Sobrinho "
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As representa??es da malária na obra de Jo?o Guimar?es Rosa
Lacerda-Queiroz, Norinne;Queiroz Sobrinho, Ant?nio;Teixeira, Ant?nio Lúcio;
História, Ciências, Saúde-Manguinhos , 2012, DOI: 10.1590/S0104-59702012000200007
Abstract: the article discusses the historical, scientific and literary aspects of malaria, with an emphasis on images of the disease in the work of the writer jo?o guimar?es rosa. the main reference for this study is the short story "sarapalha," which is featured in the book entitled sagarana. the author's medical training together with his experiences in the hinterlands of the country is the subject matter for the work, with stories of the harsh reality of life in the outback. a highlight of the story is the narrative of malaria in the language of the outback, though with absolute medical and scientific precision.
Morphological cladistic analysis of Pseudobombax Dugand (Malvaceae, Bombacoideae) and allied genera
Carvalho-Sobrinho, Jefferson Guedes de;Queiroz, Luciano Paganucci de;
Brazilian Journal of Botany , 2011, DOI: 10.1590/S0100-84042011000200007
Abstract: (morphological cladistic analysis of pseudobombax dugand (malvaceae, bombacoideae) and allied genera). pseudobombax dugand belongs to the family malvaceae subfamily bombacoideae and aggregates 29 species restricted to the neotropics. a morphological cladistic analysis of pseudobombax and allied genera was carried out to test the monophyly of the genus and to provide hypotheses on its phylogeny. parsimony analyses were based on 40 morphological characters and 28 species, 14 belonging to pseudobombax and 14 to other species of bombacoideae, matisieae (malvoideae) and ochromeae. nine most parsimonious trees (144 steps, ci 0.40, ri 0.67) were produced when 10 multistate characters were taken as ordered while only two most parsimonious trees (139 steps, ci 0.41, ri 0.67) were obtained when all characters were considered as unordered. pseudobombax monophyly had moderate bootstrap support, appearing as sister to a clade composed of the genera bombacopsis pittier and pachira aubl., or to the genus bombax l. according to the analysis. the petiole widened at the apex and the leaflets not jointed to the petiole are probably synapomorphies of pseudobombax. three main clades were found in the genus: one characterised by petiolulated leaflets and 5-angular fruits, the other by pubescent leaves and calyx, and the other by reduction of the number of leaflets. the latter includes species endemic to the brazilian semi-arid region also characterised by the absence of phalanges in the androecium. interspecific affinities in pseudobombax as well as the morphological evolution in bombacoideae are discussed.
Optical Bistability in an Acousto-Optic Tunable Filter (AOTF) Operating with Short Optical Pulses  [PDF]
Karlo David Alves Sabóia, Alex Sander Barros Queiroz, Francisco Tiago Lima, Cícero Saraiva Sobrinho, Jose Wally Mendon?a Menezes, Antonio Sergio Bezerra Sombra
Journal of Electromagnetic Analysis and Applications (JEMAA) , 2012, DOI: 10.4236/jemaa.2012.43015
Abstract: In this paper we report for the first time the presence of bistability in an acoustic-optic tunable filter (AOTF) operating with ultrashort (2 ps) optical light pulses. The results for the study of bistability has shown the dependence of the hysteresis curve with the product of the coupling constant (κ) by the length of the device (ξL) and the conversion power-coupling constant factor (G). The range of bistability varies significantly with both G and with κξL parameters. The variation of κξL directly increases the size of the range of bistability hysteresis while the increase in G causes the bistability to occur at low powers. The phenomenon of optical bistability (OB) is the object of increasing interest due to its possibilities for important device applications. A bistable device is a device with a capability to generate two different outputs for a given input and the physical requirements for this are an intensity-dependence refractive index and an optical feedback mechanism.
Intracerebral infection with dengue-3 virus induces meningoencephalitis and behavioral changes that precede lethality in mice
Debora CG Amaral, Milene A Rachid, Marcia C Vilela, Roberta DL Campos, Gustavo P Ferreira, David H Rodrigues, Norinne Lacerda-Queiroz, Aline S Miranda, Vivian V Costa, Marco A Campos, Erna G Kroon, Mauro M Teixeira, Antonio L Teixeira
Journal of Neuroinflammation , 2011, DOI: 10.1186/1742-2094-8-23
Abstract: C57BL/6 mice received 4 × 103 PFU of DENV-3 by an intracranial route. We evaluated the trafficking of leukocytes in brain microvasculature using intravital microscopy, and evaluated chemokine and cytokine profiling by an ELISA test at 3 and 6 days post infection (p.i.). Furthermore, we determined myeloperoxidase activity and immune cell populations, and also performed histopathological analysis and immunostaining for the virus in brain tissue.All animals developed signs of encephalitis and died by day 8 p.i. Motor behavior and muscle tone and strength parameters declined at day 7 p.i. We observed increased leukocyte rolling and adhesion in brain microvasculature of infected mice at days 3 and 6 p.i. The infection was followed by significant increases in IFN-γ, TNF-α, CCL2, CCL5, CXCL1, and CXCL2. Histological analysis showed evidence of meningoencephalitis and reactive gliosis. Increased numbers of neutrophils, CD4+ and CD8+ T cells were detected in brain of infected animals, notably at day 6 p.i. Cells immunoreactive for anti-NS-3 were visualized throughout the brain.Intracerebral infection with non-adapted DENV-3 induces encephalitis and behavioral changes that precede lethality in mice.Dengue, one of the most important arboviral human diseases, is a serious cause of morbidity and mortality in tropical and subtropical regions of the world. Approximately 2.5 billion people are at risk of being infected by dengue virus [1]. The dengue virus (DENV) comprises four serotypes - DENV-1, DENV-2, DENV-3, and DENV-4, all of which appear to be present in 22 of the 27 states of Brazil [2-4].Although DENV has been considered a non-neurotropic virus in humans, some authors have described the presence of the virus in cerebrospinal fluid (CSF), and dengue antigens in brain tissue [5,6]. Moreover, infection has been associated with encephalitis, acute disseminated encephalomyelitis, neuropathies, and Guillain-Barré syndrome [6-8]. Therefore, dengue infection should be considered a
Behavioral investigation of mice with experimental autoimmune encephalomyelitis
Rodrigues, David Henrique;Vilela, Márcia de Carvalho;Lacerda-Queiroz, Norinne;Miranda, Aline Silva de;Sousa, Larissa Fonseca da Cunha;Reis, Helton José dos;Teixeira, Ant?nio Lúcio;
Arquivos de Neuro-Psiquiatria , 2011, DOI: 10.1590/S0004-282X2011000700018
Abstract: multiple sclerosis is a neuroinflammatory disease that results in serious neurological disability. besides physical impairment, behavioral symptoms are also common in patients with multiple sclerosis. experimental autoimmune encephalomyelitis (eae) is considered to be a model of multiple sclerosis and mimics the main features of the disease, such as demyelination and motor impairment. in this work, we aimed to study behavioral parameters in animals with eae using the mog35-55 model in c57bl/6 mice. we analyzed memory and anxiety in animals using the elevated plus maze, the step down inhibitory avoidance task and the memory recognition test. no differences in any tests were found when comparing controls and animals induced with eae. therefore, we conclude that behavioral changes in animals with eae induced with mog35-55 are probably subtle or absent.
Role of IL-4 in an experimental model of encephalitis induced by intracranial inoculation of herpes simplex virus-1 (HSV-1)
Vilela, Márcia Carvalho;Campos, Roberta Dayrell de Lima;Mansur, Daniel Santos;Rodrigues, David Henrique;Queiroz, Norinne Lacerda;Lima, Graciela Kunrath;Rachid, Milene Alvarenga;Kroon, Erna Geessien;Campos, Marco Ant?nio;Teixeira, Ant?nio Lúcio;
Arquivos de Neuro-Psiquiatria , 2011, DOI: 10.1590/S0004-282X2011000200019
Abstract: herpes simplex virus-1 (hsv-1) is a pathogen that may cause severe encephalitis in humans. in this study, we aimed to investigate the role of interleukin-4 (il-4) in a model of hsv-1 brain infection. il-4 knockout (il-4-/-) and wild type (wt) c57bl/6 mice were inoculated with 104 plaque-forming units of hsv-1 by the intracranial route. histopathologic analysis revealed a distinct profile of infiltrating cells at 3 days post-infection (dpi). infected wt mice presented mononuclear inflammatory cells while il-4-/- mice developed meningoencephalitis with predominance of neutrophils. il-4-/- mice had diminished leukocyte adhesion at 3 dpi when compared to infected wt animals in intravital microscopy study. conversely no differences were found in cerebral levels of cxcl1, cxcl9, ccl3, ccl5 and tnf-α between wt and il-4-/- infected mice. il-4 may play a role in the recruitment of cells into central nervous system in this acute model of severe encephalitis caused by hsv-1.
Morfologia dos tricomas das pétalas de espécies de Pseudobombax Dugand (Malvaceae, Bombacoideae) e seu significado taxon?mico
Carvalho-Sobrinho, Jefferson Guedes de;Santos, Francisco de Assis Ribeiro dos;Queiroz, Luciano Paganucci de;
Acta Botanica Brasilica , 2009, DOI: 10.1590/S0102-33062009000400003
Abstract: trichome morphology of the petals of pseudobombax dugand species was investigated. the eight species selected of pseudobombax were analyzed using optical microscopy and scanning electron microscopy. the study detected the existence of variation, both qualitative and quantitative, in morphology of trichomes in petals of species analyzed. in pseudobombax petals, two kinds of trichomes were found: (a) trichomes 2-4-armed, sessile, long, flexible and with thin walls, situated on the adaxial surface; (b) tufted trichomes, sessile, short, rigid, with thick, lignified walls, on the abaxial surface of the petals. the qualitative and quantitative data were of taxonomic value for the resolution of problems of specific identification in the genus.
Aplica??o de processos físico-químicos como alternativa de pré e pós-tratamento de lixiviados de aterros sanitários
Queiroz, Luciano Matos;Amaral, Mailer Sene;Morita, Dione Mari;Yabroudi, Suher Carolina;Sobrinho, Pedro Alem;
Engenharia Sanitaria e Ambiental , 2011, DOI: 10.1590/S1413-41522011000400012
Abstract: the aim of this article was evaluate the implementation of the ammonia stripping as a pretreatment for landfill leachate and the use of the coagulation-flocculation-sedimentation process for the removal of refractory organic compounds present in a landfill leachate pretreated in an activated sludge system. the rates of ammonia nitrogen removal ranged between 3.5 and 3.6 mg nh3-n.l-1.h-1in a lab scale reactor (working volume of 20 l) equipped with a mechanical stirrer and 3.2 and 3.3 mg nh3-n.l-1.h-1in a lab scale aerated column (working volume of 10 l). it was possible to achieve removals above 90% of refractory organic compounds (measured as apparent color) applied coagulant dosage about 400 mg fe+3.l-1 and 400 mg al+3.l-1.
Biological nitrogen removal over nitritation/denitritation using phenol as carbon source
Queiroz, L. M.;Aun, M. V.;Morita, D. M.;Alem Sobrinho, P.;
Brazilian Journal of Chemical Engineering , 2011, DOI: 10.1590/S0104-66322011000200004
Abstract: a laboratory scale activated sludge sequencing batch reactor was operated in order to obtain total removal of influent ammonia (200; 300 and 500 mg nh3-n.l-1) with sustained nitrite accumulation at the end of the aerobic stages with phenol (1,000 mg c6h5oh.l-1) as the carbon source for denitrifying microorganisms during the anoxic stages. ammonia removal above 95% and ratios of (no2--n / (no2--n + no3--n)) ranging from 89 to 99% were obtained by controlling the dissolved oxygen concentration (1.0 mg o2.l-1) and the ph value of 8.3 during the aerobic stages. phenol proved to be an adequate source of carbon for nitrogen removal via nitrite with continuous feeding throughout part of the anoxic stage. nitrite concentrations greater than 70.0 mg no2--n.l-1 inhibited the biological denitritation process.
Aspectos biológicos de adultos de um parasitóide do bicudo do algodoeiro
Araújo, Lúcia Helena Avelino;Braga Sobrinho, Raimundo;Queiroz, Messias Firmino de;
Scientia Agricola , 1999, DOI: 10.1590/S0103-90161999000400001
Abstract: bracon sp. is an important biological control agent of anthonomus grandis, the cotton boll weevil. the objective of this work was to evaluate biological aspects of bracon sp. using cotton boll weevil larvae as host, at conditions of 26 ± 2oc, with 70 ± 5% rh and 12h photoperiod. the complete life cycle of bracon sp. was 11.7 days. the incubation period lasted 1.0 day and the larval period 3.9 days with four stages; the viability of the larvae was 98.7%; prepupal period lasted 0.6 day; and the pupal period lasted 6.2 days. preoviposition period was 4.0 days, and the females laid an average of 74.0 eggs with in an oviposition period of 27.2 days, while the average daily oviposition rate was 2.7 eggs per female per day, posovipositional lasted 3.7 days, and the longevity of bracon sp. was 34.0 days in females. the information of the biology of this braconid is needed to develop parasitoid propagation and colonization strategies.
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