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Search Results: 1 - 10 of 4026 matches for " Caroline Peressutti "
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Neurorestorative Effects of Constraint-Induced Movement Therapy after Stroke: An Integrative Review  [PDF]
Marina Lucas, Pedro Ribeiro, Mauricio Cagy, Silmar Teixeira, Fernanda Chaves, Diana Carvalho, Caroline Peressutti, Sérgio Machado, Juliana Bittencourt, Bruna Velasques, Roberto Piedade
Neuroscience & Medicine (NM) , 2013, DOI: 10.4236/nm.2013.44036
Abstract:

Stroke has been considered as one of the main causes of death and of motor and cognitive sequels. Especially, many patients with upper limb hemiparesis improved their motor action and showed meaningful cortical changes after treatment with constraint-induced movement therapy. Therefore, this review aims to verify the literature about neuroimaging and behavioral evidences in the cortical reorganization through the use of the constraint-induced movement therapy. So, we conducted the literature research in indexed journals from many databases like Pubmed, Medline, Cochrane Database, Lilacs and Scielo. We concluded that the behavioral and neuroimaging studies using traditional and modified constraint-induced movement therapy promote cortical reorganization.

Functional coupling of sensorimotor and associative areas during a catching ball task: a qEEG coherence study
Farmy Silva, Oscar Arias-Carrión, Silmar Teixeira, Bruna Velasques, Caroline Peressutti, Flávia Paes, Luis F Basile, Manuel Menéndez-González, Eric Murillo-Rodríguez, Mauricio Cagy, Roberto Piedade, Antonio Nardi, Sergio Machado, Pedro Ribeiro
International Archives of Medicine , 2012, DOI: 10.1186/1755-7682-5-9
Abstract: Quantitative electroencephalography (qEEG) was recorded using a 20-channel EEG system in 20 healthy right-handed participants performed the catching ball task. We used the EEG coherence analysis to investigate subdivisions of alpha (8-12 Hz) and beta (12-30 Hz) bands, which are related to cognitive processing and sensory-motor integration.Notwithstanding, we found the main effects for the factor block; for alpha-1, coherence decreased from the first to sixth block, and the opposite effect occurred for alpha-2 and beta-2, with coherence increasing along the blocks.It was concluded that to perform successfully our task, which involved anticipatory processes (i.e. feedback mechanisms), subjects exhibited a great involvement of sensory-motor and associative areas, possibly due to organization of information to process visuospatial parameters and further catch the falling object.In a dynamic environment, the Central Nervous System (CNS) is in constant activity because it receives external sensory stimuli all the time, in order to specifically maintain an appropriate motor performance [1]. Thus, in the CNS occurs an association between the ability to communicate with the external environment and encoding information for the internal control of the movement, aiming at an appropriate task execution [2]. These factors are elementary components for the preparation and adjustment of a motor act, besides they take part in the integration among different specialized centers in the final production of the movement [3].Catching an object is a complex movement that involves not only programming but also effective motor coordination [4,5]. Such behavior is related to the activation and recruitment of cortical regions that participates in the sensorimotor integration process. Moreover, the CNS needs to capture information from the environment in order to prepare the motor act and to enhance the execution of goal-directed tasks, e.g., catching an object [3]. On the other hand, sensori
Cortical Reorganization after Hand Immobilization: The beta qEEG Spectral Coherence Evidences
Marina Fortuna, Silmar Teixeira, Sérgio Machado, Bruna Velasques, Juliana Bittencourt, Caroline Peressutti, Henning Budde, Mauricio Cagy, Antonio E. Nardi, Roberto Piedade, Pedro Ribeiro, Oscar Arias-Carrión
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0079912
Abstract: There is increasing evidence that hand immobilization is associated with various changes in the brain. Indeed, beta band coherence is strongly related to motor act and sensitive stimuli. In this study we investigate the electrophysiological and cortical changes that occur when subjects are submitted to hand immobilization. We hypothesized that beta coherence oscillations act as a mechanism underlying inter- and intra-hemispheric changes. As a methodology for our study fifteen healthy individuals between the ages of 20 and 30 years were subjected to a right index finger task before and after hand immobilization while their brain activity pattern was recorded using quantitative electroencephalography. This analysis revealed that hand immobilization caused changes in frontal, central and parietal areas of the brain. The main findings showed a lower beta-2 band in frontal regions and greater cortical activity in central and parietal areas. In summary, the coherence increased in the frontal, central and parietal cortex, due to hand immobilization and it adjusted the brains functioning, which had been disrupted by the procedure. Moreover, the brain adaptation upon hand immobilization of the subjects involved inter- and intra-hemispheric changes.
More on eikonal approximation for high energy scattering
Altinoluk, T.;Kovner, A.;Peressutti, J.
High Energy Physics - Phenomenology , 2008, DOI: 10.1016/j.nuclphysa.2008.12.002
Abstract: We formulate eikonal approximation to the calculation of high energy scattering amplitude in the frame where both colliding objects are very energetic. We express the eikonal scattering matrix in terms of the color charge densities of the colliding objects. The calculation is performed in the Hamiltonian formalism. We also show that the appearance of the longitudinal electric and magnetic fields immediately following the collision is fully taken into account in the eikonal approximation.
Eikonal but not: a complementary view of high energy evolution
Altinoluk, Tolga;Kovner, Alex;Peressutti, Javier
High Energy Physics - Phenomenology , 2007, DOI: 10.1016/j.physletb.2007.11.011
Abstract: The high energy evolution equations that describe the evolution of hadronic amplitudes with energy are derived assuming eikonal interaction of the evolved hadronic wave function with the target. In this note we remark that this derivation allows a different interpretation, whereby the hadronic wave function is not evolved, but instead the evolution acts on the S - matrix operator. In this approach, analogous to the Heisenberg picture of Quantum mechanics, the scattering is not eikonal and additional boost provides for radiation of more gluons in the final state.
Estudio comparativo de la estructura del bacterioplancton en aguas del Mar Argentino mediante el método de pirosecuenciación 454 tag
Peressutti,S. R.; Costagliola,M.; Artigas,L. F.; Hozbor,C.;
Revista argentina de microbiolog?-a , 2010,
Abstract: the present study provides the first information about diversity and abundance of microbial communities in two environments of the argentinian sea by the 454 - tag pyrosequencing technique. we observed more than 4,600 unique bacterial sequences from 36,188 tag amplicons, forming 280 phylotypes. in addition, nearly 2,700 unique sequences from more than 47,700 tags identified as archaea, defined only 5 different phylotypes. the jaccard distance (0.6 for bacteria and 0.2 for archaea) indicated higher differences among bacteria rather than among archaea in both studied sites. the dominant phylotypes in marine environment were bacteroidetes flavobacteriaceae, proteobacteria gammaproteobacteria, proteobacteria rhodobacteraceae and proteobacteria rickettsiales sar11; and pseudoalteromonadaceae pseudoalteromonas, proteobacteria gammaproteobacteria, proteobacteria shewanella, proteobacteria rickettsiales sar11 in the estuary sampling site. archaea euryarchaeota and archaea crenarchaeota were the major archaeal phylotypes found. the most abundant tag sequences included previously characterized taxa, although we also retrieved a large number of highly diverse, low-abundant phylotypes which constitute a largely unexplored "rare" biosphere. these microorganisms could have a crucial ecological role.
Estudio comparativo de la estructura del bacterioplancton en aguas del Mar Argentino mediante el método de pirosecuenciación 454 tag A comparative study of bacterioplankton structure in Argentinian Sea waters by the 454 - tag pyrosequencing method
S. R. Peressutti,M. Costagliola,L. F. Artigas,C. Hozbor
Revista argentina de microbiolog?-a , 2010,
Abstract: El presente estudio brinda la primera información sobre diversidad y abundancia de las comunidades microbianas en dos ambientes del Mar Argentino obtenida mediante la técnica de pirosecuenciación tag ribosomal 454. Dentro del dominio Bacteria, se observaron más de 4 600 secuencias únicas a partir de 36 188 amplicones de tags y se identificaron 280 filotipos. Además, se detectaron cerca de 2 700 secuencias únicas a partir de más de 47 700 tags pertenecientes al dominio Archaea, lo que definió sólo 5 filotipos diferentes. La distancia de Jaccard presentó valores de 0,6 para bacterias y de 0,2 para arqueas, esto indica mayor diferencia entre las bacterias en los dos sitios. En el ambiente marino los filotipos más dominantes fueron Bacteroidetes Flavobacteriaceae, Proteobacteria Gammaproteobacteria, Proteobacteria Rhodobacteraceae y Proteobacteria Rickettsiales SAR11, mientras que en el estuario predominaron Pseudoalteromonadaceae Pseudoalteromonas, Proteobacteria Gammaproteobacteria, Proteobacteria Shewanella y Proteobacteria Rickettsiales SAR11. Los 2 filotipos de arqueas encontrados en mayor proporción fueron Archaea Euryarchaeota y Archaea Crenarchaeota. Las secuencias tag más numerosas representaron taxa caracterizados previamente, aunque también se halló un elevado número de filotipos de gran diversidad y de baja abundancia, que forman parte de la denominada "biosfera rara", aún no explorada, que pueden tener un papel ecológico crucial. The present study provides the first information about diversity and abundance of microbial communities in two environments of the Argentinian Sea by the 454 - tag pyrosequencing technique. We observed more than 4,600 unique bacterial sequences from 36,188 tag amplicons, forming 280 phylotypes. In addition, nearly 2,700 unique sequences from more than 47,700 tags identified as Archaea, defined only 5 different phylotypes. The Jaccard distance (0.6 for Bacteria and 0.2 for Archaea) indicated higher differences among Bacteria rather than among Archaea in both studied sites. The dominant phylotypes in marine environment were Bacteroidetes Flavobacteriaceae, Proteobacteria Gammaproteobacteria, Proteobacteria Rhodobacteraceae and Proteobacteria Rickettsiales SAR11; and Pseudoalteromonadaceae Pseudoalteromonas, Proteobacteria Gammaproteobacteria, Proteobacteria Shewanella, Proteobacteria Rickettsiales SAR11 in the estuary sampling site. Archaea Euryarchaeota and Archaea Crenarchaeota were the major archaeal phylotypes found. The most abundant tag sequences included previously characterized taxa, although we also retrieved a
Signatures for Majorana neutrinos in $e^- γ$ collider
J. Peressutti,O. A. Sampayo,Jorge Isidro Aranda
Physics , 2001, DOI: 10.1103/PhysRevD.64.073007
Abstract: We study the possibilities to detect Majorana neutrinos in $e^- \gamma$ colliders for different center of mass energies. We study the $W^- W^- l_j^{+}(l_j^+\equiv e^+ ,\mu^+ ,\tau^+)$ final state which are, due to leptonic number violation, a clear signature for intermediate Majorana neutrino contribution. Such a signal (final lepton have the opposite charge of the initial lepton) is not possible if the heavy neutrinos are Dirac particles. In our calculation we use the helicity formalism to obtain analytic expressions for the amplitude and we have considered that the intermediate neutrinos can be either on shell or off shell. Finally we present our results for the total cross-section and for the angular distribution of the final lepton. We also include a discussion on the expected events number as a function of the input parameters.
The Class of Language: Examining Rhetoric, Children’s Social Education, and Pedagogy in Economically Distinct Classrooms  [PDF]
Caroline C.
Creative Education (CE) , 2018, DOI: 10.4236/ce.2018.93024
Abstract: My paper examines the uses of language in a Rochester city public elementary school compared to the uses of language in a suburban, accelerated after school program. The goal of this research was to address how language is employed in these two classrooms and if rhetorical variations between the two are indicative of their community’s economic, social, and racial differences. From my experience working at each facility, I was able to observe how specific language operates and in what context over the course of three weeks. I consulted visual, auditory, and carefully written recordings of structured classes and of free time at each facility. As a result, I have located salient differences in the way two institutions of disparate levels of income negotiate language and how that “class-coded” language affects the students. Namely, these differences delineate the following: what are considered appropriate and forbidden words around children, disciplinary tactics believed to be most effective, strategies in executing effective lesson plans, and types of social bonding within the classroom. Depending on how teachers use language in the classroom, children receive starkly different structural education as well as social education. Thus, examining different classrooms’ language choices and their effects on students allows us to adapt our language and elevate children’s education in any classroom, regardless of economic status.
Monitoreo de DDI en Mar del Plata: 2003
Fares Taie,A.; Peressutti,Laura; Robin Martín,Carolina; Bernatené,D.; Sartorio,G.; Niepomniszcze,H.;
Revista argentina de endocrinolog?-a y metabolismo , 2007,
Abstract: un total de 1113 alumnos de escolaridad primaria, de ambos sexos, fue estudiado en este monitoreo de bocio endémico en 3 escuelas de la ciudad de mar del plata. la edad de los escolares osciló entre 5 y 13 a?os. la palpación tiroidea fue hecha por el conjunto de los médicos participantes. sin embargo, con la finalidad de aunar criterios con lo realizado previamente (1-14), se tomó como única referencia la palpación de h.n., que se llevó a cabo en la totalidad de los ni?os estudiados. la definición del grado de bocio fue similar a la utilizada en los otros relevamientos (1). se determinó la yoduria en 262 muestras casuales de orina emitidas por los ni?os una vez que fueron palpados. se recolectaron 991 muestras de sal de consumo hogare?o para medir su contenido en yodo. el examen palpatorio de los ni?os reveló la existencia de bocio grado 1, con excepción de 1 ni?o que tuvo un nódulo tiroideo. la prevalencia promedio de bocio encontrada para mar del plata fue de 8,6 %, variando entre 7,8 % y 10,1 %, según la escuela encuestada. los niveles de yoduria tuvieron una media general de 185 μg/l y una mediana general de 149 μg/l. cuando se analizaron las escuelas en forma individual, las medianas variaron entre 121 y 176 μg/l, pero no correlacionaron con los porcentajes de bocio encontrados. tampoco hubo correlación entre el contenido promedio de yodo en sal de cada colegio y la mediana de las yodurias de cada uno de ellos. el contenido de yodo de las sales que aportaron los alumnos mostró una media de 24,3 ± 9,7 mg/kg para las 3 escuelas tomadas en conjunto, con un rango de 21,8 a 26,7 mg/kg, al analizar las escuelas en forma separada. al evaluar el porcentaje de muestras, cuyas concentraciones de yodo fueron <15mg/kg, se vio que las mismas alcanzaron la cifra del 14,5 %, que está algo por encima del 10 % establecido por la iccidd (15). un dato de sumo interés fue el obtenido de la encuesta sobre el consumo de agua de red en las viviendas de los ni?os. si bien al momento d
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