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Search Results: 1 - 10 of 101177 matches for " Ana Cláudia Guimar?es Vieira Silva "
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AS FUN ES DA LINGUAGEM NOS CH@TS: O “INTERNETêS” NUMA ABORDAGEM FUNCIONALISTA
Ana Cláudia Guimares Vieira Silva,Lucas Santos Campos
Fólio : Revista de Letras , 2010,
Abstract: For a long time the communication has experienced a great process of evolution, which provides a large exchange between individuals. Today, great advances came about mainly due to information technology. Through these innovations new genres of texts come up at every moment to supply their communicative needs. It demands that we become updated and follow these changes, as well as we join to the process of digital literacy. Blogs, websites, chat rooms, forums, e-mails, among others, are the newest ways to interact with the contemporary world. The language used in these types of genres is known as Internetês. It is characterized by containing the codes and it is widely used by young people, who search for to innovating their ways of communication. So, this paper aims to analyze and understand the environment of Internet chat. Through a functionalist approach, we aim to identify and interpret the functions of language present in this environment of virtual communication.
Preparation of highly dispersed Ru-Sn bimetallic supported catalysts from the single source precursors Cp(PPh3)2Ru-SnX3 (X = Cl or Br)
Silva Ana Cláudia Bernardes,Sousa Ana Paula Guimares de,Ardisson José Domingos,Siebald Helmuth Guido Luna
Materials Research , 2003,
Abstract: In this work highly dispersed Ru-Sn bimetallic catalysts have been prepared from organobimetallic Cp(PPh3)2Ru-SnX3 (X = Cl or Br) complexes. These single source precursors can be easily impregnated in high surface area supports, such as activated carbon and sol-gel SiO2, and upon controlled thermal treatment the ligands are released as volatile products resulting in the formation of the bimetallic system Ru-Sn. Catalytic reactions, such as hydrodechlorination of CCl4 and chlorobenzene and TPR (Temperature Programmed Reduction) experiments carried out with these RuSn catalysts suggested a strong interaction between Ruthenium and Tin. M ssbauer measurements showed that these materials when exposed to air are immediately oxidized to form Sn (IV). It was shown that upon controlled reduction conditions with H2 it is possible to reduce selectively Sn to different oxidation states and different phases. The Sn oxidation state showed significant effect on the catalytic hydrogenation of 1,5-cyclooctadiene. The use of these single source precursors with a controlled decomposition/reduction procedure allows the preparation of unique catalysts with an intimate interaction between the components ruthenium and tin and the possibility of varying the Sn oxidation state around the Ru metal.
Nutritionally Driven Differential Gene Expression Leads to Heterochronic Brain Development in Honeybee Castes
Lívia Maria Moda, Joseana Vieira, Anna Cláudia Guimares Freire, Vanessa Bonatti, Ana Durvalina Bomtorin, Angel Roberto Barchuk, Zilá Luz Paulino Sim?es
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0064815
Abstract: The differential feeding regimes experienced by the queen and worker larvae of the honeybee Apis mellifera shape a complex endocrine response cascade that ultimately gives rise to differences in brain morphologies. Brain development analyzed at the morphological level from the third (L3) through fifth (L5) larval instars revealed an asynchrony between queens and workers. In the feeding phase of the last larval instar (L5F), two well-formed structures, pedunculi and calyces, are identifiable in the mushroom bodies of queens, both of which are not present in workers until a later phase (spinning phase, L5S). Genome-wide expression analyses and normalized transcript expression experiments monitoring specific genes revealed that this differential brain development starts earlier, during L3. Analyzing brains from L3 through L5S1 larvae, we identified 21 genes with caste-specific transcription patterns (e.g., APC-4, GlcAT-P, fax, kr-h1 and shot), which encode proteins that are potentially involved in the development of brain tissues through controlling the cell proliferation rate (APC4, kr-h1) and fasciculation (GlcAT-P, fax, and shot). Shot, whose expression is known to be required for axon extension and cell proliferation, was found to be transcribed at significantly higher levels in L4 queens compared with worker larvae. Moreover, the protein encoded by this gene was immunolocalized to the cytoplasm of cells near the antennal lobe neuropiles and proximal to the Kenyon cells in the brains of L4 queens. In conclusion, during the larval period, the brains of queens are larger and develop more rapidly than workers’ brains, which represents a developmental heterochrony reflecting the effect of the differential feeding regime of the two castes on nervous system development. Furthermore, this differential development is characterized by caste-specific transcriptional profiles of a set of genes, thus pointing to a link between differential nutrition and differential neurogenesis via genes that control cell proliferation and fasciculation.
Avalia??o e controle de contatos faltosos de doentes com hanseníase
Vieira, Carmen Silvia de Campos Almeida;Soares, Marina Teixeira;Ribeiro, Cláudia Tatiana Siqueira Xavier;Silva, Letícia Faroni Guimares da;
Revista Brasileira de Enfermagem , 2008, DOI: 10.1590/S0034-71672008000700005
Abstract: descriptive study, with qualitative variables, carried on in the ambulatory of specialties region of taubaté, in order to evaluate the missing contacts of leprosy patients. thirty-six records of new cases were analyzed, from january 2003 to july 2004. ninety-two contacts were identified, being 64.1% missing ones, having 25% from 20 to 29 years and 58.5% female. of these, 61% were submitted to consultation of home nursing. reported non-membership to the control for forgetfulness (66.6%), and lack of time (11.1%), 4 contacts had symptoms of leprosy, and 1 was confirmed (transmissible form - dimorfa). without achieving 100% coverage active search, we suggest, to ensure the goal of eliminating of the disease, partnerships and decentralization of the control activities.
Avalia o e controle de contatos faltosos de doentes com hanseníase Evaluación y control de contactos faltantes de enfermos con lepra Evaluation and control of missing contacts of leprosy patients
Carmen Silvia de Campos Almeida Vieira,Marina Teixeira Soares,Cláudia Tatiana Siqueira Xavier Ribeiro,Letícia Faroni Guimares da Silva
Revista Brasileira de Enfermagem , 2008,
Abstract: Estudo descritivo, com variáveis qualitativas, realizado no Ambulatório Regional de Especialidades de Taubaté, com objetivo de resgatar e avaliar contatos faltosos de doentes de hanseníase. Analisou-se 36 prontuários de casos novos, no período de janeiro de 2003 a julho de 2004. Identificou-se 92 contatos, sendo 64,1% faltosos, tendo 25% entre 20 a 29 anos e 58,5% do sexo feminino. Destes, 61% foram submetidos à consulta de enfermagem no domicilio. Relataram n o ades o ao controle por esquecimento (66,6%), e falta de tempo (11,1%); 4 contatos tinham sintomas de hanseníase, e 1 foi confirmado (forma transmissível - Dimorfa). Sem atingir 100% da cobertura de busca ativa, sugerimos, para assegurar a meta de elimina o da doen a, parcerias e descentraliza o das a es de controle. Estudio descriptivo, con cualitativas variable, realizado en el Ambulatorio de Especialidades Regional de Taubaté, a fin de canjear y evaluar las deficiencias de enfermos de lepra. Se analizaron los registros de 36 nuevos casos, entre enero de 2003 y julio de 2004. Se identificaron 92 contactos, sendo 64,1% deficiencias, tendo 25% de 20 a 29 a os y 58,5% mujeres. De estos, 61% fueron sometidos a consulta en la casa de los enfermos . Informó de la no pertenencia al control en el olvido (66,6%), y la falta de tiempo (11,1%), 4 contactos había síntomas de la lepra, y se confirmó 1 (formulario transmisibles - Dimorfa). Sin lograr una cobertura del 100% del activo de búsqueda, le sugerimos que, para garantizar el objetivo de eliminar la enfermedad, las asociaciones y la descentralización de las actividades de control. Descriptive study, with qualitative variables, carried on in the Ambulatory of Specialties Region of Taubaté, in order to evaluate the missing contacts of leprosy patients. Thirty-six records of new cases were analyzed, from January 2003 to July 2004. Ninety-two contacts were identified, being 64.1% missing ones, having 25% from 20 to 29 years and 58.5% female. Of these, 61% were submitted to consultation of home nursing. Reported non-membership to the control for forgetfulness (66.6%), and lack of time (11.1%), 4 contacts had symptoms of leprosy, and 1 was confirmed (transmissible form - Dimorfa). Without achieving 100% coverage active search, we suggest, to ensure the goal of eliminating of the disease, partnerships and decentralization of the control activities.
Thermal properties of defatted meal, concentrate, and protein isolate of baru nuts (Dipteryx alata Vog.)
Guimares, Rita de Cássia Avellaneda;Favaro, Simone Palma;Souza, Anderson Dias Vieira de;Soares, Cláudia Muniz;Nunes, ?ngela Alves;Oliveira, Lincoln Carlos Silva de;Honer, Michael Robin;
Ciência e Tecnologia de Alimentos , 2012, DOI: 10.1590/S0101-20612012005000031
Abstract: baru (dipteryx alata vog.), a species of legume found in the brazilian savannas, was investigated in this study for the composition of its flesh and seed. thermal analyses, thermogravimetry (tg), and differential scanning calorimetry (dsc) were used to investigate the proteins in defatted meal, concentrate, and protein isolate. the protein concentrate was extracted at ph 10, followed by a precipitation at the isoelectric point to obtain the isolate that was spray dried. the thermogravimetric curves were obtained under a nitrogen atmosphere with a 100 ml/minutes flow. the initial, final and peak temperatures and mass loss were analyzed. within the performed temperature ranges studied, the defatted meal and concentrate presented four steps of mass loss, while the isolate showed only two steps. the protein content of defatted meal from baru nuts was higher than that of the isolate. on the other hand, there was a reduction in enthalpy, which suggests that the process applied to obtain the baru concentrate and isolate led to protein denaturation.
Preparation of highly dispersed Ru-Sn bimetallic supported catalysts from the single source precursors Cp(PPh3)2Ru-SnX3 (X = Cl or Br)
Silva, Ana Cláudia Bernardes;Sousa, Ana Paula Guimares de;Ardisson, José Domingos;Siebald, Helmuth Guido Luna;Moura, Edmilson;Santos, Eduardo Nicolau dos;Mohallem, Nelcy Della Santina;Lago, Rochel Montero;
Materials Research , 2003, DOI: 10.1590/S1516-14392003000200005
Abstract: in this work highly dispersed ru-sn bimetallic catalysts have been prepared from organobimetallic cp(pph3)2ru-snx3 (x = cl or br) complexes. these single source precursors can be easily impregnated in high surface area supports, such as activated carbon and sol-gel sio2, and upon controlled thermal treatment the ligands are released as volatile products resulting in the formation of the bimetallic system ru-sn. catalytic reactions, such as hydrodechlorination of ccl4 and chlorobenzene and tpr (temperature programmed reduction) experiments carried out with these rusn catalysts suggested a strong interaction between ruthenium and tin. m?ssbauer measurements showed that these materials when exposed to air are immediately oxidized to form sn (iv). it was shown that upon controlled reduction conditions with h2 it is possible to reduce selectively sn to different oxidation states and different phases. the sn oxidation state showed significant effect on the catalytic hydrogenation of 1,5-cyclooctadiene. the use of these single source precursors with a controlled decomposition/reduction procedure allows the preparation of unique catalysts with an intimate interaction between the components ruthenium and tin and the possibility of varying the sn oxidation state around the ru metal.
Eritema multiforme mayor desencadenado por antimicrobianos
de Carvalho Raimundo,Ronaldo; de Santana Santos,Thiago; da Silva Filho,José Paulo; Guimares de Melo Albert,Daniela; Dias de Oliveira e Silva,Emanuel; Amorim Gomes,Ana Cláudia;
Revista Cubana de Estomatolog?-a , 2010,
Abstract: the multiform erythema appears as a systemic disease where skin and the mucous membranes have participation in relation to some factors such as bacterial or viral infections and in particular the drugs administration, analgesics and antibiotics in general. the aim of present paper was the presentation of case of big multiform erythema triggering by antimicrobials. authors present the case of a male patient aged 29 with appearance of ulcerous bullous-vesicular lesions in lips, gums, tongue and genital mucosa under treatment with 400 mg norfloxacin due to urinary tract infection for a week. we made support treatment using mouthwashes for oral hygiene and corticoids ointment for ulcer protection, antihistaminics and nutritional guiding of a hypercaloric and hyperprotein liquid diet. this syndrome is characterized as an acute bullous eruptive process involving the patient's quality of life and there are not specific laboratory tests thus its diagnosis must to be based on a highly detailed review of anamnesis and the clinical findings.
Evidence for Reductive Genome Evolution and Lateral Acquisition of Virulence Functions in Two Corynebacterium pseudotuberculosis Strains
Jer?nimo C. Ruiz,Vívian D'Afonseca,Artur Silva,Amjad Ali,Anne C. Pinto,Anderson R. Santos,Aryanne A. M. C. Rocha,Débora O. Lopes,Fernanda A. Dorella,Luis G. C. Pacheco,Marcília P. Costa,Meritxell Z. Turk,Núbia Seyffert,Pablo M. R. O. Moraes,Siomar C. Soares,Sintia S. Almeida,Thiago L. P. Castro,Vinicius A. C. Abreu,Eva Trost,Jan Baumbach,Andreas Tauch,Maria Paula C. Schneider,John McCulloch,Louise T. Cerdeira,Rommel T. J. Ramos,Adhemar Zerlotini,Anderson Dominitini,Daniela M. Resende,Elisangela M. Coser,Luciana M. Oliveira,André L. Pedrosa,Carlos U. Vieira,Cláudia T. Guimares,Daniela C. Bartholomeu,Diana M. Oliveira,Fabrício R. Santos,élida Mara Rabelo,Francisco P. Lobo,Glória R. Franco,Ana Flávia Costa,Ieso M. Castro,Sílvia Regina Costa Dias,Jesus A. Ferro,José Miguel Ortega,Luciano V. Paiva,Luiz R. Goulart,Juliana Franco Almeida,Maria Inês T. Ferro,Newton P. Carneiro,Paula R. K. Falc?o,Priscila Grynberg,Santuza M. R. Teixeira,Sérgio Brommonschenkel,Sérgio C. Oliveira,Roberto Meyer,Robert J. Moore,Anderson Miyoshi,Guilherme C. Oliveira,Vasco Azevedo
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0018551
Abstract: Corynebacterium pseudotuberculosis, a Gram-positive, facultative intracellular pathogen, is the etiologic agent of the disease known as caseous lymphadenitis (CL). CL mainly affects small ruminants, such as goats and sheep; it also causes infections in humans, though rarely. This species is distributed worldwide, but it has the most serious economic impact in Oceania, Africa and South America. Although C. pseudotuberculosis causes major health and productivity problems for livestock, little is known about the molecular basis of its pathogenicity.
Doen?a cerebrovascular e neurocisticercose
Rocha, Maria Sheila Guimares;Brucki, S?nia Maria Dozzi;Ferraz, Ana Cláudia;Piccolo, Ana Cláudia;
Arquivos de Neuro-Psiquiatria , 2001, DOI: 10.1590/S0004-282X2001000500023
Abstract: we report three cases of stroke secondary to neurocysticercosis. the first one is a 36 years old man with bilateral middle cerebral artery occlusions who had presented acute right hemiparesia and aphasia. mri demonstrated several enhancing subarachnoid cysts surrounding the occluded vessels, a right parietal racemose cyst and a left temporal large infarction area. angiographic study showed total occlusion of left middle cerebral artery and a subtotal occlusion of right middle cerebral artery. the second one is a 42 years old man with vasculitis of small cortical vessels who presented with headache, seizures and focal neurological deficit. ct scan demonstrated several calcifications and a left temporal infarction area. cerebral angiographic study was normal. the third case was a woman, 53 years old, with a past history of six stroke events and an actual behavior disturbance and seizures. mri demonstrated several cortical and subcortical infarction areas and cisternal cysts. angiographic study showed diffuse arteritis of basilar and carotid arterial system. in all three cases csf study showed linfomonocitic pleocytosis and positive elisa for cysticercosis.
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