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Search Results: 1 - 10 of 24195 matches for " Carolina Montagn Carvalho "
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Sealing of temporary cements in endodontics
Eduardo Gomes Ferraz,Carolina Montagn Carvalho,Maria Cristina Teixeira Cangussu,Sílvio Albergaria
RGO : Revista Gaúcha de Odontologia , 2009,
Abstract: Objective: The aim of this study was to assess the coronal leakage of three temporary cements in endodontics: Bioplic (Biodinamica, Londrina, Brazil), IRM (Dentsply, Petrópolis, Brazil) and Coltosol (Vigodent, Bonsucesso, Brazil). Methods: Forty human pre-molars were divided into four groups: I (Bioplic + adhesive system), II (Bioplic , Biodinamica, Londrina, Brasil), III (IRM , Dentsply, Petrópolis, Brasil), and IV (Coltosol , Vigodent, Bonsucesso, Brasil). The teeth were immersed in 1% Rodamine and kept at 37°C for 24h. They were then thermal cycled for seven days. Temperatures ranged between 5, 37 and 50°C. After longitudinal sectioning the leakage was measured in mm and statistical analysis was performed using the ANOVA and Tukey tests with a level of significance of 5%.Results: In the group in which Bioplic was used with adhesive, a lower level of leakage was detected (0.37 ± 0.24). There was significant difference (p<0.05) between groups I and III, I and IV, II and III. Conclusion: It was concluded that all the tested material showed coronal leakage and that the use of the (Bioplic Biodinamica, Londrina, Brasil)plus adhesive system showed the lowest level of leakage.
Fotografia e fantasmagoria em Dom Casmurro
Carvalho, Carolina Sá;
Machado de Assis em Linha , 2011, DOI: 10.1590/S1983-68212011000200005
Abstract: this paper investigates the role of the photographic portrait in dom casmurro, by machado de assis. this fictional autobiography of a character obsessed by the reconstruction of the links between the present and the past, appearance and reality, face and soul deals with questions which are also part of the photographic imaginary of the 19th century, when photographic portraits become part of every bourgeois home. among these questions we find the theme of identity and of the duplication of the self, which are also present in machadian studies such as those developed by antonio candido, augusto meyer and, more recently, josé luiz passos. even though photography appears in several of machado de assis's novels, such as memorial de aires or esaú e jacó, only in dom casmurro is it determinant for the structure of the narrative.
Schooling behavior of Mugil curema (Perciformes: Mugilidae) in an estuary in southeastern Brazil
Carvalho, Carolina Delgado de;Corneta, Carolina Marocco;Uieda, Virginia Sanches;
Neotropical Ichthyology , 2007, DOI: 10.1590/S1679-62252007000100012
Abstract: schools of mullets, mugilidae, are abundant in estuaries and shallow marine waters. we report on the schooling behavior of juvenile white mullet, mugil curema, in the estuary of the canto da paciência stream, in ubatuba, southeastern brazil. schools of small fish (15 to 35 mm tl) were composed of a larger number of individuals (up to a hundred individuals), and were found feeding mainly in shallow nearshore waters, whereas schools of larger fish (40 to 100 mm tl) were observed only in deeper waters. three patterns of swimming were observed for the schools: stationary feeding, slow movement while searching for food, and rapid displacement. the variations observed in school structure and behavior seem to be related to the balance between predation risk and increasing food intake.
A importancia da afectividade na aprendizagem da matemática em contexto escolar: Um estudo de caso com alunos do 8.o ano
Neves,Maria do Carmo; Carvalho,Carolina;
Análise Psicológica , 2006,
Abstract: this paper is based on a classroom investigation that place in a lisbon school with an 8th grade mathematics class. we chose a qualitative methodology of the naturalistic type, with a descriptive and interpretative approach. data were collected through direct observation and videotaping of certain classes, analysis of the pupils? answers to three questionnaires and semi-structured intervieews. the following research questions were determined: (a) what is the relationship between the affective dimension and mathematics?; (b) which elements sustain this relationship?; (c) what is the relationship between pupils? attitudes in class and their learning in mathematics? and (d) how can pupils become emotionally involved in learning mathematics? the main findings were as follows: pupils? mathematical activity is influenced by prior experiences with their teachers, colleagues, parents and mathematics. pupils value teachers who seek to respond to their needs, play with them, are affable, calm and do not customarily shout in class. the relationship of trust that pupils establish with mathematics teachers is reflected in their learning of mathematical knowledge.
Fitoplancton (exceto Chlorophyceae) de um lago artificial urbano no Sul do Brasil
Domingues, Carolina Davila;Torgan, Lezilda Carvalho;
Brazilian Journal of Botany , 2011, DOI: 10.1590/S0100-84042011000300018
Abstract: this study aims to the knowledge of phytoplankton composition of the tartarugas pond, located at the botanical garden, porto alegre city in rio grande do sul state. the samplings were carried out monthly, from june 2007 to may 2008, at one station in three different depths in the pelagic zone. forty-nine specific and infraspecific taxa belonging to seven classes were recorded. cyanobacteria presented the highest number of taxa (35% of recorded taxa), followed by bacillariophyceae (33%) and euglenophyceae (16.3%). descriptions, measurements and illustrations of the taxa are presented as well as their distribution during the annual cycle.
Fotografia e representa o do sofrimento Photography and the representation of suffering
Carolina Sá-Carvalho Pereira,Mauricio Lissovsky
Galáxia , 2008,
Abstract: A partir do confronto de três fotografias — a "Madonna dos corti os", de Lewis Hine, a "M e migrante", de Dorothea Lange, e a imagem estampada de Jo o Hélio na camiseta de sua m e —, este trabalho investiga as transforma es da representa o do sofrimento e da dor. A dimens o pública destas fotografias permite acompanhar, por intermédio da imagem da m e que sofre, as mudan as na natureza do espa o público e o papel decisivo do discurso das vítimas na constitui o de sua fei o contemporanea. Photography and the representation of suffering — Based on a comparison of three photographs — Lewis Hine's "A Madonna of the tenements", Dorothea Lange's "Migrant mother", and the image of Jo o Hélio printed on his mother's t-shirt — this paper examines the transformations that the representation of suffering and pain have undergone. The public dimension of these images — through the image of the suffering mother — illustrates the changes the public space has undergone and the central role of the victims' discourse in the contemporary world.
LANDSLIDES SUSCEPTIBILITY ANALYSIS IN THE NEIGHBORHOODS OF CUBAT O (S O PAULO STATE, BRAZIL) PIPELINES, THROUGH GIS TECHNIQUES = ANáLISE DA SUSCETIBILIDADE A ESCORREGAMENTOS NOS ENTORNOS DOS POLIDUTOS DE CUBAT O-SP, ATRAVéS DE TéCNICAS DE INFORMA O GEOGRáFICA
Carolina Monteiro de Carvalho,Paulina Setti Riedel
Holos Environment , 2004,
Abstract: GIS Analytical Hierarchy Process (AHP) was applied to evaluate landslide susceptibility along petroleum and gas pipelines in Cubat o (SP). In this area, the main landslides are related to the translation type, caused by geologic and geomorphologic conditions, associated with the degraded vegetation and high pluviosity. Geologic, geomorphologic and vegetation conditions were obtained from the study area to characterize the main geologic process features. Thematic maps related to these features were integrated through AHP model, which consider a weighted score, where each map must be associated with a list of scores, one per map class, depending on their influence in the process under consideration. The final product was a susceptibility map, which enabled an adequate analysis of this type of process as well as the evaluation of the critical areas along the existing pipelines and the future planning of new pipelines. = Este trabalho utilizou técnicas de Sistemas de Informa o Geográfica (SIGs), mais especificamente o modelo AHP (Analytical Hierarchy Process), para avaliar a suscetibilidade aos movimentos de massa nos entornos dos polidutos de Cubat o (SP).Neste trecho da Serra do Mar, os principais movimentos de massa s o os escorregamentos translacionais, devido às características geológicas e geomorfológicas presentes, aliadas à degrada o da vegeta o e à alta pluviosidade. Aspectos geológicos, geomorfológicos e de vegeta o foram obtidos para a área de estudo, através de mapeamentos existentes, caracterizando os principais condicionantes do processo a ser analisado. Foram elaborados os mapas temáticos correspondentes aos condicionantes, que foram integrados em ambiente SIG, através do modelo AHP, que realiza uma soma ponderada dos condicionantes citados acima, atribuindo-se a eles pesos maiores ou menores, dependendo de sua influência na deflagra o do processo em quest o. O produto final foi uma Carta de Suscetibilidade aos Escorregamentos Translacionais, nos entornos dos polidutos de Cubat o, que possibilitou a análise da adequa o dos métodos empregados, bem como da utilidade do mapa obtido na avalia o de áreas mais críticas nos dutos existentes e no planejamento de futuras malhas dutoviárias.
Temperature Gradient Gel Electrophoresis as a Valuable Accessory Tool for Assessment of Dysbiosis in Crohn’s Disease  [PDF]
Vanessa Rafaela de Carvalho, Rogeria Keller, Ana Carolina da Silva Santos, Josias Rodrigues
Advances in Microbiology (AiM) , 2016, DOI: 10.4236/aim.2016.68055
Abstract: Escherichia coli and other Proteobacteria are augmented and several other bacteria are diminished in Crohn’s (CD) disease patients’ intestine. This imbalance in bacterial species composition—termed dysbiosis—seems to be determinant of CD manifestation. Since a great part of intestinal bacteria are not cultivable, detection of CD dysbiosis is accomplished by molecular tools, involving sequences analysis of the 16SrRNA gene (16SrDNA) present in the patient’s clinical samples, which can be done by sequencing or electrophoresis in denaturing gels of 16SrDNA amplicons. By analyzing, by temperature gradient gel electrophoresis (TGGE) and next generation sequencing of 16SV6-V8rDNA amplicons present in gram negative cultures from four distinct clinical samples of a control subject and a CD patient, this study demonstrates that both techniques were able to detect E. coli overgrowth and reduction in species richness in CD and that TGGE can discriminate sequences collectively labeled as “unclassified” in 16SrDNA databases. Although TGGE per se does not identify the sequences, the discriminatory power that it confers represents valuable accessory information to next generation DNA sequencing (NGS), and as such must be used as a NGS complementary tool.
Molecular evolution of the crustacean hyperglycemic hormone family in ecdysozoans
Nicolas Montagné, Yves Desdevises, Daniel Soyez, Jean-Yves Toullec
BMC Evolutionary Biology , 2010, DOI: 10.1186/1471-2148-10-62
Abstract: CHH family peptides were characterized by molecular cloning in a branchiopod crustacean, Daphnia magna, and in a collembolan, Folsomia candida. Genes encoding such peptides were also rebuilt in silico from genomic sequences of another branchiopod, a chelicerate and two nematodes. These sequences were included in updated datasets to build phylogenies of the CHH family in pancrustaceans. These phylogenies suggest that peptides found in Branchiopoda and Collembola are more closely related to insect ITPs than to crustacean CHHs. Datasets were also used to support a phylogenetic hypothesis about pancrustacean relationships, which, in addition to gene structures, allowed us to propose two evolutionary scenarios of this multigenic family in ecdysozoans.Evolutionary scenarios suggest that CHH family genes of ecdysozoans originate from an ancestral two-exon gene, and genes of arthropods from a three-exon one. In malacostracans, the evolution of the CHH family has involved several duplication, insertion or deletion events, leading to neuropeptides with a wide variety of functions, as observed in decapods. This family could thus constitute a promising model to investigate the links between gene duplications and functional divergence.The study of the evolutionary history of arthropods is a challenging field of research, as they constitute the large majority of known metazoan species and exhibit an extreme diversity of body plans and physiology. Nowadays, evo-devo approaches largely contribute to this research area [reviewed in [1]], but the evolution of peptide hormone families directly involved in physiological adaptations remains poorly investigated in arthropods, especially when compared to vertebrates. The Crustacean Hyperglycemic Hormone (CHH) family could constitute a model of choice to address this question, as CHH family peptides are well known in decapod crustaceans, where they do play major roles in many physiological processes. Since decapods were the first invertebr
Seed Germination in Tomato: A Focus on Interaction between Phytochromes and Gibberellins or Abscisic Acid  [PDF]
Marina Alves Gavassi, Gabriela Cabral Fernandes, Carolina Cristina Monteiro, Lázaro Eustáquio Pereira Peres, Rogério Falleiros Carvalho
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.514229
Abstract:

Separately, it is well-documented that phytochromes (phys), gibberellin (GA) and abscisic acid (ABA) strongly control the seed germination in tomato. However, we hipothesized that phys interact with GA or ABA during this response. Thus, we make an analysis of seed germination of ABA deficient (sit), GA constitutive response (pro), phytochrome deficient (au) mutants as well as, specially, au sit and au pro double mutants of tomato incubated in the dark or light conditions during 120 h [12 h intervals (i)]. Compared to au, which severely reduced percentage germination (Gi%) and pro, which did not alter Gi%, au pro showed in the light enhanced Gi% and germination speed index (GSI)

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