Efecto de una restricción alimenticia después del destete sobre la mortalidad y los rendimientos productivos de conejos en cebo

En este trabajo se ha estudiado el efecto de una restricción alimenticia moderada 15 y gradual después del destete (alrededor de 35 d de edad) sobre los rendimientos 16 productivos y la eficiencia alimenticia global del cebo. La restricción consistió en 17 suministrar una cantidad limitada de alimento (80, 100 y 120 g/d) en las tres semanas 18 siguientes al destete. Se han realizado seis ensayos, con 480 animales cada uno, 19 utilizando seis piensos comerciales que diferían en el tipo de medicación. En estos 20 ensayos se controlaron los parámetros de crecimiento, eficacia alimenticia global y 21 mortalidad durante el periodo de restricción y en el conjunto del cebo (destete a 63-67 d 22 de edad). El número de ooquistes y de Clostridium perfringens en heces duras fue 23 también evaluado en cada tratamiento. En ninguno de los ensayos se detectaron 24 problemas de elevada mortalidad causada por ERE. En estas condiciones, la mortalidad 25 de los gazapos restringidos se redujo un 33% (P=0,02) en el periodo de restricción y 26 tendió a disminuir en el conjunto del periodo de cebo. Los resultados obtenidos 27 muestran además que una restricción alimenticia moderada mejora en un 4% (Pmenor que0,001) 28 la eficiencia alimenticia global del cebo, sin afectar al peso total de animales enviado a 29 matadero. Además, la adopción de medidas que disminuyan la proliferación de 30 coccidios y C. perfringens en el contenido digestivo pueden resultar útiles para reducir 31 la mortalidad de conejos durante el cebo

An Automated Surveillance Strategy to Identify Infectious Complications After Cardiac Implantable Electronic Device Procedures.

Background.  The optimum approach for infectious complication surveillance for cardiac implantable electronic device (CIED) procedures is unclear. We created an automated surveillance tool for infectious complications after CIED procedures. Methods.  Adults having CIED procedures between January 1, 2005 and December 31, 2011 at Duke University Hospital were identified retrospectively using International Classification of Diseases, 9th revision (ICD-9) procedure codes. Potential infections were identified with combinations of ICD-9 diagnosis codes and microbiology data for 365 days postprocedure. All microbiology-identified and a subset of ICD-9 code-identified possible cases, as well as a subset of procedures without microbiology or ICD-9 codes, were reviewed. Test performance characteristics for specific queries were calculated. Results.  Overall, 6097 patients had 7137 procedures. Of these, 1686 procedures with potential infectious complications were identified: 174 by both ICD-9 code and microbiology, 14 only by microbiology, and 1498 only by ICD-9 criteria. We reviewed 558 potential cases, including all 188 microbiology-identified cases, 250 randomly selected ICD-9 cases, and 120 with neither. Overall, 65 unique infections were identified, including 5 of 250 reviewed cases identified only by ICD-9 codes. Queries that included microbiology data and ICD-9 code 996.61 had good overall test performance, with sensitivities of approximately 90% and specificities of approximately 80%. Queries with ICD-9 codes alone had poor specificity. Extrapolation of reviewed infectious rates to nonreviewed cases yields an estimated rate of infection of 1.3%. Conclusions.  Electronic queries with combinations of ICD-9 codes and microbiologic data can be created and have good test performance characteristics for identifying likely infectious complications of CIED procedures.

Late-career international migration and reproductive work. A comparison between Peruvian and Ukrainian women in the Southern Europe

Research on the relationship between reproductive work and women´s life trajectories including the experience of labour migration has mainly focused on the case of relatively young mothers who leave behind, or later re-join, their children. While it is true that most women migrate at a younger age, there are a significant number of cases of men and women who move abroad for labour purposes at a more advanced stage, undertaking a late-career migration. This is still an under-estimated and under-researched sub-field that uncovers a varied range of issues, including the global organization of reproductive work and the employment of migrant women as domestic workers late in their lives. By pooling the findings of two qualitative studies, this article focuses on Peruvian and Ukrainian women who seek employment in Spain and Italy when they are well into their forties, or older. A commonality the two groups of women share is that, independently of their level of education and professional experience, more often than not they end up as domestic and care workers. The article initially discusses the reasons for late-career female migration, taking into consideration the structural and personal determinants that have affected Peruvian and Ukrainian women’s careers in their countries of origin and settlement. After this, the focus is set on the characteristics of domestic employment at later life, on the impact on their current lives, including the transnational family organization, and on future labour and retirement prospects. Apart from an evaluation of objective working and living conditions, we discuss women’s personal impressions of being domestic workers in the context of their occupational experiences and family commitments. In this regard, women report varying levels of personal and professional satisfaction, as well as different patterns of continuity-discontinuity in their work and family lives, and of optimism towards the future. Divergences could be, to some extent, explained by the effect of migrants´ transnational social practices and policies of states.

Estudo da vegetação arbórea e arbustiva adequada a projetos de engenharia natural em Portugal

Doutoramento em Engenharia Florestal e dos Recursos Naturais - Instituto Superior de Agronomia - UL

Herramientas de planificación estratégica (II): Mapa estratégico (marco estratégico))

Marca las líneas básicas para la definición del marco estratégico de una organización, considerando una serie de variables y realizando un diagnóstico para analizar la situación en la que se encuentra. Todo ello ayuda a la organización a fijar los objetivos estratégicos, base para la construcción de su mapa estratégico

Densita con la proprieta di media per i sub-Laplaciani

Nella tesi studiamo le densità con la proprietà di media per i sub-Laplaciani. In particolare determiniamo un’espressione generale per una densità positiva con la proprietà di media, su un insieme Ω generico che soddisfi certe prorpietà di regolarità. Troviamo inoltre delle stime della funzione di Green e del nucleo di Poisson per un qualsiasi sub-Laplaciano su un generico gruppo di Carnot e tramite queste stime troviamo delle condizioni sufficienti affinchè, con la densità precedentemente trovata, si possa avere una struttura di Γ-tripla sull’insieme Ω. Studiamo infine un problema inverso per il quale sarà fondamentale avere una struttura di Γ-tripla.