ESTUDO SOBRE A CONSTITUIÇÃO DA SUBJETIVIDADE DE CRIANÇAS EXPLORADAS NO/PELO TRABALHO

Este estudo visou caraterizar as implicações na constituição da subjetividade das crianças que são exploradas no/pelo trabalho, compreender como se apropriam das experiências vividas nas relações de trabalho, analisando os sentidos e os significados atribuídos a estas vivências. A pesquisa privilegiou nos discursos das crianças, os diversos sentidos e significados que elas dão para o trabalho e para si mesmas, em uma relação caraterizada pelas condições de exploração

Psicoterapia infantil na perspectiva cultural histórica : o movimento da subjetividade em Arteterapia

Este trabalho apresenta a psicoterapia infantil na perspectiva cultural e histórica. Tem por objetivo compreender o movimento dos processos e formações subjetivas, em contexto psicoterápico, por meio de ações e relações desenvolvidas em um ateliê de arteterapia. Trata-se da discussão teórico-metodológica de registros elaborados pela autora/terapeuta em atendimentos a uma menina de quatro anos. A análise e construção das informações inspiraram-se nos princípios da Epistemologia qualitativa propostos por González Rey, que discute a ênfase do singular, a relação dialógica e o caráter construtivo-interpretativo, reconhecendo, na psicoterapia, o fazer artístico como condutor de novos processos de subjetivação do indivíduo. A presente pesquisa evidencia que os novos sentidos subjetivos, produzidos a partir dos tensionamentos provocados, proporcionaram condições para a produção de outras e novas configurações subjetivas.This paper presents an approach on psychotherapy for children using the theoretical foundations of subjectivity under a cultural and historical perspective. The purpose of this study is to understand the movement of subjective formations and processes in the psychotherapy context, through actions and relations developed in an Art Therapy atelier. This is the theoretical and methodological discussion of records elaborated by the therapist when caring for a 4-year-old girl. The principles of qualitative Epistemology proposed by González Rey inspired the analysis and construction of information along the study, which discusses the emphasis of the singularity, the dialogical relationship and constructive-interpretative character that recognizes interpretive psychotherapy, and the artistic practice as a driver of new processes of an individual subjectivities. It was found that the new subjective senses, which were produced from the induced tensions, allowed the recognition of the artistic practice as a driver of new processes of subjectivation, and provided conditions for the production of other, new subjective settings

Offshore multi-purpose platform : local electrical network design

Objectives • Investigate the feasibility of using dc systems as a promising alternative approach to improve MPP electric infrastructure. • Develop and design an optimal control system for a marine offshore DC network

Modelling and stability analysis for a variable speed DC tidal/wind turbines with MPPT in low voltage DC microgrid

DC Microgrid is a new candidate for Multi-Purpose Platforms (MPP) which highly supported by the international community for sustainably exploiting our oceans. Considering DC-systems for the MPP requires all renewable energy sources to be interfaced to a DC-bus. Wind turbines as proven developed energy for offshore use is a crucial energy source for MPP. Normally, a wind turbine in a DC-environment uses a diode rectifier for interfacing to the grid and a DC-DC boost or buck converter for extracting maximum power. Previous studies included wind turbine in a DC-microgrid did not analyze the turbine stability with wind variations. Moreover, tidal turbines, as an immature technology, are rarely considered in such DC-systems. So, this paper provides a modelling and stability analysis for a wind/tidal turbines based Permanent Magnet Synchronous Generator (PMSG). A linearized small-signal model is derived for a wind/tidal turbines based PMSG and boost converter. Two control loops are used for speed and current control. Stability analysis shows that the controller can effectively keep the system stable under wind/tidal speed variations. Simulation analysis is carried out to shows the effectiveness of the controller at various speeds considering tidal and wind turbines

Primeiro isolamento no Brasil de herpesvirus eqüino tipo 1 em um cavalo com doença neurológica

O presente relato refere-se ao primeiro isolamento no Brasil do herpesvírus eqüino tipo 1 (HVE-1) proveniente de um caso clínico de mieloncefalopatia herpética em uma égua, que evoluiu para o óbito. O isolado do HVE-1, denominado 07/05, foi obtido a partir de uma amostra de líquor na primeira passagem em células Vero, confirmando-se sua identidade pela PCR e pela prova de neutralização viral. Como o isolamento viral a partir do líquor geralmente não é bem sucedido, conforme demonstrado em vários relatos de casos, o presente achado sugere que a doença neurológica foi causada por uma amostra particularmente neurovirulenta de HVE-1This report describes the first Brazilian equine herpesvirus type 1 (EHV-1) isolation from a single fatal equine herpes myeloencephalopathy case in a mare. The isolation of EHV-1 was confirmed from the first passage of cerebrospinal fluid (CSF) sample in Vero cells by PCR and virus neutralization assay. As virus isolation from CSF is unlikely to be successful, as has been shown in several case reports, this circumstantial evidence suggests that the neurological disease was caused by particularly neurovirulent strain of EHV-1FAPES

Assessment of multi-use offshore platforms: structure classification and design challenges

As the world continues to experience problems including a lack of seafood and high energy demands, this paper provides an assessment for integrated multi-use offshore platforms (MUPs) as a step towards exploiting open seawater in a sustainable way to harvest food and energy. The paper begins with background about MUPs, including information regarding what an MUP is and why it is used. The potential energy technologies that can be involved in an offshore platform are introduced while addressing similar applications all over the world. The paper presents the state of the art of MUP structures on the light of EU-funded programs. An MUP would have a positive impact on various marine activities such as tourism, aquaculture, transport, oil and gas and leisure. However, there are concerns about the negative impact of MUPs on the marine environment and ecosystem. Building an MUP with 100% renewable energy resources is still a challenge because a large storage capacity must be considered with a well-designed control system. However, marine bio-mass would play a vital role in reducing battery size and improving power supply reliability. Direct Current (DC) systems have never been considered for offshore platforms, but they could be a better alternative as a simpler control system that requires with lower costs, has lower distribution losses, and has an increased system efficiency, so studying the feasibility of using DC systems for MUPs is required

Computational mechanisms of belief updating in relation to psychotic-like experiences

Introduction Psychotic-like experiences (PLEs) may occur due to changes in weighting prior beliefs and new evidence in the belief updating process. It is still unclear whether the acquisition or integration of stable beliefs is altered, and whether such alteration depends on the level of environmental and belief precision, which reflects the associated uncertainty. This motivated us to investigate uncertainty-related dynamics of belief updating in relation to PLEs using an online study design. Methods We selected a sample (n = 300) of participants who performed a belief updating task with sudden change points and provided self-report questionnaires for PLEs. The task required participants to observe bags dropping from a hidden helicopter, infer its position, and dynamically update their belief about the helicopter's position. Participants could optimize performance by adjusting learning rates according to inferred belief uncertainty (inverse prior precision) and the probability of environmental change points. We used a normative learning model to examine the relationship between adherence to specific model parameters and PLEs. Results PLEs were linked to lower accuracy in tracking the outcome (helicopter location) (β = 0.26 ± 0.11, p = 0.018) and to a smaller increase of belief precision across observations after a change point (β = −0.003 ± 0.0007, p < 0.001). PLEs were related to slower belief updating when participants encountered large prediction errors (β = −0.03 ± 0.009, p = 0.001). Computational modeling suggested that PLEs were associated with reduced overall belief updating in response to prediction errors (βPE = −1.00 ± 0.45, p = 0.028) and reduced modulation of updating at inferred environmental change points (βCPP = −0.84 ± 0.38, p = 0.023). Discussion We conclude that PLEs are associated with altered dynamics of belief updating. These findings support the idea that the process of balancing prior belief and new evidence, as a function of environmental uncertainty, is altered in PLEs, which may contribute to the development of delusions. Specifically, slower learning after large prediction errors in people with high PLEs may result in rigid beliefs. Disregarding environmental change points may limit the flexibility to establish new beliefs in the face of contradictory evidence. The present study fosters a deeper understanding of inferential belief updating mechanisms underlying PLEs.Peer Reviewe

Computational mechanisms of belief updating in relation to psychotic-like experiences

Introduction: Psychotic-like experiences (PLEs) may occur due to changes in weighting prior beliefs and new evidence in the belief updating process. It is still unclear whether the acquisition or integration of stable beliefs is altered, and whether such alteration depends on the level of environmental and belief precision, which reflects the associated uncertainty. This motivated us to investigate uncertainty-related dynamics of belief updating in relation to PLEs using an online study design. Methods: We selected a sample (n = 300) of participants who performed a belief updating task with sudden change points and provided self-report questionnaires for PLEs. The task required participants to observe bags dropping from a hidden helicopter, infer its position, and dynamically update their belief about the helicopter's position. Participants could optimize performance by adjusting learning rates according to inferred belief uncertainty (inverse prior precision) and the probability of environmental change points. We used a normative learning model to examine the relationship between adherence to specific model parameters and PLEs. Results: PLEs were linked to lower accuracy in tracking the outcome (helicopter location) (beta = 0.26 +/- 0.11, p = 0.018) and to a smaller increase of belief precision across observations after a change point (beta = -0.003 +/- 0.0007, p < 0.001). PLEs were related to slower belief updating when participants encountered large prediction errors (beta = -0.03 +/- 0.009, p = 0.001). Computational modeling suggested that PLEs were associated with reduced overall belief updating in response to prediction errors (beta(PE) = -1.00 +/- 0.45, p = 0.028) and reduced modulation of updating at inferred environmental change points (beta(CPP) = -0.84 +/- 0.38, p = 0.023). Discussion: We conclude that PLEs are associated with altered dynamics of belief updating. These findings support the idea that the process of balancing prior belief and new evidence, as a function of environmental uncertainty, is altered in PLEs, which may contribute to the development of delusions. Specifically, slower learning after large prediction errors in people with high PLEs may result in rigid beliefs. Disregarding environmental change points may limit the flexibility to establish new beliefs in the face of contradictory evidence. The present study fosters a deeper understanding of inferential belief updating mechanisms underlying PLEs

Secondary displacement of distal radius fractures treated by bridging external fixation

Loss of reduction remains an important problem after treatment of distal radius fractures, whatever the type of bone fixation. We assessed retrospectively the rate of secondary displacement after external fixation of distal radius fractures in order to identify possible risk factors for instability. We reviewed the pre-operative and serial post-operative radiographs of a retrospective series of 35 distal radius fractures treated by bridging external fixation. When classified according to the Société Française d'Orthopédie et Traumatologie (SOFCOT) criteria, the rate of secondary displacement was 48.5%. At final follow up, the reduction was anatomical in 12% and acceptable in 83%. There was malunion in 5%. The loss of reduction concerned primarily the distal radius palmar tilt and was moderate. No correlation was found with age, gender, type of fracture, degree of initial displacement, associated ulnar fracture, or seniority of the treating surgeon. © The Author(s) 2013