Flavones from Erythrina falcata are modulators of fear memory

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Diferenças estilísticas do autotradutor João Ubaldo Ribeiro em Sergeant Getulio e An Invincible Memory

Este trabalho teve por objetivo analisar o estilo de João Ubaldo Ribeiro enquanto autotradutor e também compará-lo ao seu estilo enquanto autor, por meio de um corpus paralelo formado pelas obras Sargento Getúlio/Sergeant Getulio e Viva o povo brasileiro/An invincible memory. A fundamentação teórica apoia-se na abordagem interdisciplinar proposta por Camargo (2005, 2007) envolvendo os estudos de tradução baseados em corpus (Baker, 1996, 2000, 2004) e a linguística de corpus (Berber Sardinha, 2004). Para uma observação do seu perfil estilístico, procurei identificar usos linguísticos característicos e individuais, ou seja, traços de seu comportamento linguístico relacionados à variação vocabular. Quanto aos resultados, foi possível observar que, enquanto participante como autotradutor, Ubaldo Ribeiro revela um padrão estilístico distintivo e preferencial que apresenta menor variação lexical. Em contraste, na situação de participante como autor, Ubaldo Ribeiro mostra padrões estilísticos com maior variação. A diversidade de vocabulário já era esperada para o escritor João Ubaldo, uma vez que a crítica literária enfatiza a sua habilidade na exploração do verbo brasileiro. Ao considerar a forma padronizada como uma indicação do uso que o autotradutor faz da linguagem, pode-se destacar, apesar da influência de possíveis variáveis, que a diferença menor registrada para Sergeant Getulio (3,69) e acentuadamente mais baixa para An invincible memory (4,73) constituem marcas significativas da utilização dos padrões estilísticos próprios desse tradutor de si mesmo, revelando o impacto da extensão dessas diferenças em contraste com a escrita do autor, respectivamente em Sargento Getúlio e Viva o povo brasileiro.

Uma investigação de aspectos de normalização na autotradução An Invincible Memory

This paper aims at observing the particular case of an author’s and self-translator’s style concerning normalisation features present in the self-translation. Our study has its theoretical starting point based on Baker’s proposal (1993, 1995, 1996, 2000) and Scott’s investigation in order to carry out an analysis of the use of linguistic choices involving evidence of normalization. The results point out that, while participating as a self-translator, Ubaldo Ribeiro reveals individual, distinctive and preferred stylistic options which present less lexical variation; in contrast, in the situation of participating as an author, Ubaldo Ribeiro shows stylistic choices of higher lexical diversity. Observed normalisation features reveal conscious or subconscious use of fluency strategies, making the target text easier to read. Due to his renowned sound command of the target language, the results may also suggest the challenges during the translated text re-creation process faced as a self-translator could have been greater than the challenges during the previous original text creation process faced as an author

O estilo de João Ubaldo Ribeiro em Viva o Povo Brasileiros e An Invincible Memory

This paper aims at observing a particular case of an author’s and self-translator’s style in the pair of works Viva o Povo Brasileiro and An Invincible Memory. Our investigation has its theoretical starting point based on Corpus-Based Translation Studies (Baker, 1993, 1995, 1996, 2000; Camargo, 2005, 2007), and works on cultural domains (Nida, 1945; Aubert, 1981, 2006). The results showed that great part of cultural marks may be classified as the material, social, and ideological cultural domains, which reflects the context of the source text. It was also possible to observe that normalization features tends to reveal conscious or unconscious use of fluency strategies by the self-translator, making the translated text easier to read.

Neonatal anoxia in rats: hippocampal cellular and subcellular changes related to cell death and spatial memory

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Nonlinear angle control of a sectioned airfoil by using shape memory alloys

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Numerical tests of an adaptive sectioned airfoil actuated by shape memory alloys

The main objective of this work is to illustrate an application of angular active control in a sectioned airfoil using shape memory alloys. In the proposed model, one wants to establish the shape of the airfoil profile based on the determination of an angle between its two sections. This angle is obtained by the effect of the shape memory of the alloy by passing an electric current that modifies the temperature of the wire through the Joule effect, changing the shape of the alloy. This material is capable of converting thermal energy into mechanical energy and once permanently deformed, the material can return to its original shape by heating. Due to the presence of nonlinear effects, especially in the mathematical model of the alloy, this work proposes the application of a control system based on fuzzy logic. Through numerical tests, the performance of the fuzzy controller is compared with an on-off controller applied in a sectioned airfoil model.

Aeroelastic Analysis of a Typical Section Using of Shape memory wire actuator

Shape memory alloys (SMAs) provide a compact and effective actuation for a variety of mechanical systems. In this paper, a numerical simulation study of a three degree of-freedom airfoil, subjected to two-dimensional incompressible inviscid flow using a SMA is presented. SMA wire actuators are used to control the flap movement of a wing section. Through the thermo-mechanical constitutive equation of the SMA proposed by Brison, we simulate numerically the behavior of a double SMA wire actuator. Two SMA actuators are used: one to move the flap down and the other to move the flap up. Through the numerical results conducted in the present study, the behavior and characteristics of an SMA actuator with two SMA wires are shown the effectiveness of the SMA actuator. In conclusion, this paper shows the feasibility of using SMA wire actuators for flap movement, with success

Levels of phonological awareness, working memory, and lexical knowledge in elementary school children

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

The Influence of Schematic Knowledge on Contradictory versus Additive Misinformation: False Memory for Typical and Atypical Items

In the current study, we examined the influence of schema consistency on contradictory and additive misinformation. Sixty-four participants were shown a series of still photographs of common scenes (e.g., a kitchen), were later exposed to narratives containing misinformation, and were then tested on their memory of the photographic scenes. In addition, participants were asked to reflect on their phenomenological experience of remembering by giving remember/know responses. Participants reported greater false memory for schema-inconsistent items than schema-consistent items. The findings failed to replicate Roediger, Meade, and Bergman (2001). Explanations for the discrepant findings are discussed.

Tests of the Dynamic Field Theory and the Spatial Precision Hypothesis: Capturing a Qualitative Developmental Transition in Spatial Working Memory

This study tested a dynamic field theory (DFT) of spatial working memory and an associated spatial precision hypothesis (SPH). Between 3 and 6 years of age, there is a qualitative shift in how children use reference axes to remember locations: 3-year-olds’ spatial recall responses are biased toward reference axes after short memory delays, whereas 6-year-olds’ responses are biased away from reference axes. According to the DFT and the SPH, quantitative improvements over development in the precision of excitatory and inhibitory working memory processes lead to this qualitative shift. Simulations of the DFT in Experiment 1 predict that improvements in precision should cause the spatial range of targets attracted toward a reference axis to narrow gradually over development, with repulsion emerging and gradually increasing until responses to most targets show biases away from the axis. Results from Experiment 2 with 3- to 5-year-olds support these predictions. Simulations of the DFT in Experiment 3 quantitatively fit the empirical results and offer insights into the neural processes underlying this developmental change.

Discovering Memory and Meaning in Quilts

After an extensive search Ardis and Robert James, quilt collectors from Chappaqua, New York, chose the University of Nebraska–Lincoln (UNL) as the home for their collection of almost a thousand quilts. They also supported the formation of the International Quilt Study Center (IQSC) in 1997 for the interdisciplinary study of quiltmaking traditions through the collection, conservation and exhibition of quilts and related materials. Carolyn Ducey and Patricia Crews, the Center’s curator and director, respectively, write about some of the work they do.

On Disruption of Fear Memory by Reconsolidation Blockade: Evidence from Cannabidiol Treatment

The search for reconsolidation blockers may uncover clinically relevant drugs for disrupting memories of significant stressful life experiences, such as those underlying the posttraumatic stress disorder. Considering the safety of systemically administered cannabidiol (CBD), the major non-psychotomimetic component of Cannabis sativa, to animals and humans, the present study sought to investigate whether and how this phytocannabinoid (3-30 mg/kg intraperitoneally; i.p.) could mitigate an established memory, by blockade of its reconsolidation, evaluated in a contextual fear-conditioning paradigm in rats. We report that CBD is able to disrupt 1- and 7-days-old memories when administered immediately, but not 6 h, after their retrieval for 3 min, with the dose of 10 mg/kg being the most effective. This effect persists in either case for at least 1 week, but is prevented when memory reactivation was omitted, or when the cannabinoid type-1 receptors were antagonized selectively with AM251 (1.0 mg/kg). Pretreatment with the serotonin type-1A receptor antagonist WAY100635, however, failed to block CBD effects. These results highlight that recent and older fear memories are equally vulnerable to disruption induced by CBD through reconsolidation blockade, with a consequent long-lasting relief in contextual fear-induced freezing. Importantly, this CBD effect is dependent on memory reactivation, restricted to time window of <6h, and is possibly dependent on cannabinoid type-1 receptor-mediated signaling mechanisms. We also observed that the fear memories disrupted by CBD treatment do not show reinstatement or spontaneous recovery over 22 days. These findings support the view that reconsolidation blockade, rather than facilitated extinction, accounts for the aforementioned CBD results in our experimental conditions. Neuropsychopharmacology (2012) 37, 2132-2142; doi:10.1038/npp.2012.63; published online 2 May 2012

Temporal memory of emotional experience

The few studies that have investigated judgments of time have suggested that the memory of duration is distorted more for emotional events than for neutral events, while in contrast there is abundant evidence that other aspects of memories of emotional events are more accurate. To reconcile this apparent discrepancy, we used a procedure in which the participants learned a standard duration over several trials under three emotional conditions: a threatening, a nonthreatening, and a neutral control condition. They were then tested either immediately or 24 h after learning. In this test phase, they had to indicate whether presented comparison durations were or were not the same as the previously learned standard duration. We found that durations were recalled better in the emotional than in the neutral condition, and that this occurred to a greater extent in the threatening than in the nonthreatening condition. Arousing emotions thus enhanced temporal memory, just as they enhance memory for other aspects of emotional events.