The influence of nutrition on the periparturient rise in fecal egg counts in dairy goats : Results from a two-year study

The periparturient relaxation in immunity (PPRI) to nematode infection in ewes is well known and it is associated with a rise in faecal egg counts during the periparturient period. In order to assess an eventual relationship between the PPRI and the nutritional status of periparturient females, a twoyear study was carried out in a dairy goat flock. On year 1, pregnant does were fed at 26 % below their energy (UFl) requirements and 5 % above their protein (PDI) ones during the last 3 weeks before parturition (week 0) and an increase in nematode egg counts occurred from week -2 to week +4 with a predominance of Oesophagostomum larvae in coprocultures. In year 2, two groups of pregnant goats were fed at about 100 % their energy requirements and 28 and 44 % above the protein requirements respectively during the same period. In this latter situation, no nematode egg count increase occurred in any of the two groups of animals, Teladorsagia and Trichostrongylus being the prevalent larval genera in coprocultures. As the study covered two consecutive years, the implication of several factors related to host physiology, parasite epidemiology and host nutrition are discussed

Physics of the frequency response of rectifying organic Schottky diodes

International audienceThe frequency response of unipolar organic Schottky diodes used in a rectifying circuit, such as an RFID tag, has been investigated in detail. The time dependent response of rectifying circuits has been simulated solving both the Drift Diffusion and Poisson equations to model the hole transport within the diode, coupled with time dependent circuit equations. Several approximations have also been discussed. It turns out that the cut off frequency of the rectifying circuit is indeed limited by the carrier time-of-flight and not by the diode equivalent capacitance. Simulations have also been confirmed by comparison with experiments, involving diodes with different mobilities and thicknesses. This work confirms that the 13.56MHz frequency can be reached using polymer semiconductors, as already experimentally demonstrated in the literature, by an adequate control of the active layer thicknes

BIOTEX-biosensing textiles for personalised healthcare management.

Textile-based sensors offer an unobtrusive method of continually monitoring physiological parameters during daily activities. Chemical analysis of body fluids, noninvasively, is a novel and exciting area of personalized wearable healthcare systems. BIOTEX was an EU-funded project that aimed to develop textile sensors to measure physiological parameters and the chemical composition of body fluids, with a particular interest in sweat. A wearable sensing system has been developed that integrates a textile-based fluid handling system for sample collection and transport with a number of sensors including sodium, conductivity, and pH sensors. Sensors for sweat rate, ECG, respiration, and blood oxygenation were also developed. For the first time, it has been possible to monitor a number of physiological parameters together with sweat composition in real time. This has been carried out via a network of wearable sensors distributed around the body of a subject user. This has huge implications for the field of sports and human performance and opens a whole new field of research in the clinical setting

L'illustration des Métamorphoses d'Ovide au six-huitième siècle : l'édition de Dubois-Fontanelle (1767) et ses artistes

Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal.Pour respecter les droits d'auteur, la version électronique de cette thèse ou ce mémoire a été dépouillée, le cas échéant, de ses documents visuels et audio-visuels. La version intégrale de la thèse ou du mémoire a été déposée au Service de la gestion des documents et des archives de l'Université de Montréal

Aide aux choix d'orientation : actions de trois cégeps francophones

Un accompagnement dans les choix d'orientation peut favoriser le processus de prise de décision et influencer la poursuite et la réussite des études. Les mesures de soutien à la réussite mise en place en 2000 et évaluées en 2004 (Commission d'évaluation de l'enseignement collégial, 2004) se sont avérées satisfaisantes pour les établissements collégiaux. Maintenant que les collèges ont gagné en expérience dans ces mesures, il parait pertinent de dresser un portrait des mesures récemment adoptées en lien avec le soutien aux choix d'orientation dans les plans de réussite en début de première année d'études collégiales. Cet essai dresse ce portrait des actions récentes favorisant les choix d'orientation dans trois établissements d'enseignement collégial publics francophones. L'analyse des actions a été ensuite effectuée selon 1) les catégories d'actions soutenant la transition (Tinto, 1993); 2) la typologie du cheminement des élèves (CSÉ, 2002); 3) les trois établissements de l'échantillon (Cégep de Saint-Jean-sur-Richelieu; Cégep du Vieux-Montréal; Cégep de Trois-Rivières)

Organiser un débat argumenté en troisième (« Découverte professionnelle six heures »)

L’article offre aux praticiens de l’orientation un cadre d’intervention relatif à la pratique de débats argumentés en classe de troisième – « Découverte professionnelle six heures » –, dont l’objectif est d’enrichir les représentations des élèves sur l’école et le travail, mais aussi sur eux-mêmes et ainsi les aider à construire un point de vue argumenté sur leur orientation. Après nous être arrêtés, dans une première partie, sur la notion de débat (cadre général et objectifs), nous présentons, dans une seconde partie, le déroulé des trois séances formalisées à partir d’expérimentations de terrain.The article provides the experts of professional guidance with a framework of intervention for argumentative debates in fourth form classes –‘six hours of professional discovery’–, the aim of which is to enrich pupils’ representations of school and work, but also of themselves, and thus to help them build an argued point of view of their own orientation. In a first part, we focus on the concept of debate (general framework and objectives) and, in a second part, we present the method used for the three meetings based on practical experimentations

Multivariate analysis of flood characteristics in a climate change context of the watershed of the Baskatong reservoir, Province of Québec, Canada.

The analysis of the impact of climate change (CC) on flood peaks has been the subject of several studies. However, a flood is characterized not only by its peak, but also by other characteristics such as its volume and duration. Little effort has been directed towards the study of the impact of CC on these characteristics. The aim of the present study is to evaluate and compare flood characteristics in a CC context, in the watershed of the Baskatong reservoir (Province of Québec, Canada). Comparisons are based on observed flow data and simulated flow series obtained from hydrological models using meteorological data from a regional climate model for a reference period (1971–2000) and a future period (2041–2070). To this end, two hydrological models HSAMI and HYDROTEL are considered. Correlations, stationarity, change-points, and the multivariate behaviour of flood series were studied. The results show that, at various levels, all flood characteristics could be affected by C

Positron emission tomography-imaging assessment for guiding strategy in patients with relapsed/refractory large B-cell lymphoma receiving CAR T cells

The aim of this study was to evaluate the prognostic impact of the F-fluorodeoxyglucose positron emission tomography response at 1 month (M1) and 3 months (M3) after anti-CD19 chimeric antigen receptor (CAR) T-cell therapy in a multicenter cohort of 160 patients with relapsed/refractory large B-cell lymphomas (R/R LBCL). In total, 119 (75%) patients reached M1 evaluation; 64 (53%, 64/119) had a complete response (CR); 91% were Deauville Score (DS) 1-3. Progressionfree survival (PFS) and overall survival (OS) were significantly worse in patients with DS-5 at M1, than in patients with DS 1-3 (PFS hazard ratio [HR]=6.37, 95% confidence interval [CI]: 3.5-11.5 vs. OS HR=3.79, 95% CI: 1.7-8.5) and DS-4 (PFS HR=11.99, 95% CI: 5.0-28.9 vs. OS HR=12.49, 95% CI: 2.8-55.8). The 1-year PFS rates were 78.9% (95% CI: 58.9-89.9) for DS-4 at M1, similar to 67.3% (95% CI: 51.8-78.8) for patients with DS 1-3 at M1, very different to 8.6% (95% CI: 1.8-22.4) for DS-5, respectively. Only eight of 30 (26%) patients with DS-4 progressed. Response at M3 evaluated in 90 (57%) patients was prognostic for PFS with lower discrimination (HR=3.28, 95% CI: 1.5-7.0; P=0.003) but did not predict OS (HR=0.61, 95% CI: 0.2-2.3; P=0.45). Patients with a high baseline total metabolic tumor volume (TMTV) >80 mL had worse PFS (HR=2.05, 95% CI: 1.2-3.5; P=0.009) and OS (HR=4.52, 95% CI: 2.5-8.1; P80 mL, and DS-5 at M1 for OS. In conclusion, baseline TMTV and response at M1 strongly predicts outcomes of patients with R/R LBCL undergoing CAR T-cell therapy