Design and fabrication of a low cost implantable bladder pressure monitor

In the frame of the Flemish Community funded project Bioflex we developed and fabricated an implant for short term (< 7 days) bladder pressure monitoring, and diagnosis of incontinence. This implant is soft and flexible to prevent damaging the bladder's inner wall. It contains a standard flexible electronic circuit connected to a battery, which are embedded in surface treated silicone to enhance the biocompatibility and prevent salt deposition. This article describes the fabrication of the pill and the results of preliminary cytotoxicity tests. The electronic design and its tests, implantation and the result of the in-vivo experimentation will be presented in other articles

L’inscription contextuelle de l’activité en course en durée

Cette étude s’intéresse au couplage entre l’activité d’élèves de primaire et un dispositif d’enseignement de course en durée lors d’une leçon d’Education Physique et Sportive. Elle a été conduite selon le cadre théorique et méthodologique du cours d’action. Deux types de données ont été recueillis : (a) des données d’enregistrement vidéo et (b) des données de verbalisations lors d’entretiens d’autoconfrontation. Les données ont été traitées en deux étapes : (a) la reconstruction pour chaque élève de leur cours d’action et (b) la comparaison des cours d’action. Les résultats mettent en avant (a) les préoccupations typiques des élèves lors de la réalisation du parcours de course en durée, et (b) l’évolution de ces préoccupations et des formes d’actions selon la partie du parcours. En pointant l’inscription contextuelle de l’activité des élèves, nous défendons la place des approches centrées sur l’activité comme complémentaires aux approches didactiques.The purpose of this study was to examine in primary school class pupils’activity/teaching device coupling, during a Physical Education’s lesson about running. The study was conducted within the theoretical and methodological framework of the course of action. The results showed (a) typical involvements in the situation when pupils ran on the running course and (b) the dynamic of these involvements and forms of actions according to the part of the running course. By pointing out the impact of the context to the pupils’activity, we defend the place of activity-oriented approaches to enrich the didactic approaches

APROXIMAÇÕES E DISTANCIAMENTOS ENTRE AS COPAS DE 1950 E DE 2014: APONTAMENTOS SOBRE TRANSFORMAÇÕES NO FUTEBOL E NO BRASIL

Resumo: O presente trabalho busca analisar as duas Copas do Mundo sediadas no Brasil, em 1950 e 2014. O objetivo do estudo é apontar semelhanças e diferenças na organização dos dois eventos, nos debates que eles suscitaram na época da sua realização e nos usos políticos decorrentes deles. Para isso, serão explicitados os contextos nacionais e internacionais em que os dois eventos estavam inseridos, para que se possa entender seus pontos de contato e de distanciamento. Nesse sentido,para compreender as análises foram utilizados como fontes dois jornais de grande circulação, além de peças propagandísticas e discursos políticos. O artigo propõe, por meio dessa análise, perceber como cada Copa do Mundo se configura como uma rica janela para analisar as transformações pelas quais passou o Brasil e o futebol nesses 64 anos entre as Copas de 1950 e de 2014.Palavras-Chave: Copa do Mundo; Política; Futebol.Abstract: This paper seeks to analyse the two world cups based in Brazil: one in 1950 and again in 2014. The objective of this study is pointing out similarities and differences, in the Organization of the two events, in discussions that they raised at the time of its completion and the resulting political uses of them. For this, the national and international contexts be given in which the two events were inserted, in order to understand their points of contact and distance. In this sense two mass circulation newspapers were used as a source, besides propaganda pieces and political speeches to understand the analysis. The article proposes through this analysis, realize how every FIFA World Cup â„¢ is configured as a rich window to examine the transformations through Brazil and soccer, in those 64 years between 1950 and the World Cup of 2014.Keywords: World Cup; Politics; Football

Role of methylotrophy during symbiosis between Methylobacterium nodulans and Crotalaria podocarpa

Some rare leguminous plants of the genus Crotalaria are specifically nodulated by the methylotrophic bacterium Methylobacterium nodulans. In this study, the expression and role of bacterial methylotrophy were investigated during symbiosis between M. nodulans, strain ORS 2060(T), and its host legume, Crotalaria podocarpa. Using lacZ fusion to the mxaF gene, we showed that the methylotroph genes are expressed in the root nodules, suggesting methylotrophic activity during symbiosis. In addition, loss of the bacterial methylotrophic function significantly affected plant development. Indeed, inoculation of M. nodulans nonmethylotroph mutants in C. podocarpa decreased the total root nodule number per plant up to 60%, decreased the whole-plant nitrogen fixation capacity up to 42%, and reduced the total dry plant biomass up to 46% compared with the wild-type strain. In contrast, inoculation of the legume C. podocarpa with nonmethylotrophic mutants complemented with functional mxa genes restored the symbiotic wild phenotype. These results demonstrate the key role of methylotrophy during symbiosis between M. nodulans and C. podocarpa

Matérialité et formes d’interaction entre élèves : une étude empirique lors de leçons d’EPS en course d’orientation

Cette étude en course d’orientation s’intéresse aux liens entre les propriétés physiques et fonctionnelles de la carte, son mode d’utilisation par les élèves et la dynamique des interactions entre élèves regroupés en dyades. Elle a été conduite selon le cadre théorique et méthodologique du cours d’action. Deux types de données ont été recueillis : (a) des données d’enregistrement audio-visuel des élèves et (b) des données de verbalisations post-action de ces élèves. Les données ont été traitées en deux étapes : (a) la reconstruction pour chaque élève de leur cours d’action et (b) la reconstruction de l’articulation collective de leurs cours d’action au sein de chaque dyade. Les résultats mettent en avant (a) trois modes d’utilisation de la carte par les élèves en relation avec ses propriétés physiques et fonctionnelles, (b) trois formes typiques d’interaction entre les élèves et (c) une dynamique de ces formes d’interaction entre les élèves indexée à certaines propriétés physiques et fonctionnelles de la carte. Sur cette base, la discussion vise à nourrir les réflexions sur le rôle et le potentiel des objets matériels dans l’activité collective.This study investigates on the links between the physical and functional properties of the map, on the way pupils use it and the dynamic of interactions between pupils grouped in dyads in orienteering. It was lead according to the theoritical and methodological framework of the course-of-action. Two types of data were gathered: (a) both audio and video recordings and (b) post-action verbalizations of pupils. The data were processed in two step: (a) reconstructing each pupil’s course-of-action and (b) reconstructing collective course-of-action from each dyad. The results highlight (a) three uses for the map by pupils in relation to its physical and functional properties, (b) three typical forms of interactions between pupils and (c) dynamics of these forms of interaction between pupils indexed to certain physical and functional properties of the map. The discussion contributes to ideas on the role and potential of material objects in collective activity