102,573 research outputs found
ICTCS 09—Foreword [11th Italian Conference on Theoretical Computer Science]
No full textIntroduzione al numero speciale di Rairo con contributi da ICTCS 200
Urban food strategies and plans: considerations on the assessment construction
No full textAbstract In a context of growing attention to the issue of feeding the city, this article focuses on the role of the assessments guiding the processes of urban food policy and planning to reach Sustainable Food Security. The starting point is a collection of experiences dealing with some cities that in recent years have launched strategies for developing healthier and more sustainable food systems. Their analysis highlights the innovations in the construction of cognitive frameworks supporting food policies and planning, as well as the difficulties to explore the food phenomenon on the qualitative and quantitative level. Within a current research meant to address the food agenda in Venice, the authors take advantage from the case studies comparison to propose key themes and investigation methods a preliminary assessment of the existing food system. Considering the strong impact of the huge tourist flow that invests the city, daily, the foodservice sector is considered as the main challenging and strategical core-area for boosting impactful changes in the urban food system
Confidence intervals for cholesterol bound to high and low density lipoproteins in bovine, equine, swine and canine sera
No full textFil: Coppo, Norma Beatriz. Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias; Argentina.Fil: Coppo, José Antonio. Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias; Argentina.Fil: Lazarte, M. A. Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias; Argentina.Para interpretar adecuadamente el valor del colesterol sérico, actualmente es necesario conocer el tipo de lipoproteína que lo transporta. Con el propósito de obtener valores de referencia y variaciones fisiológicas para colesterol ligado a lipoproteínas de alta y baja densidad (C– HDL y C–LDL), se analizan muestras de 218 animales domésticos ormocolesterolémicos de distinta raza, sexo, edad y tipo de alimentación. Se obtienen intervalos de confianza para C–HDL y C–LDL en bovinos (0,72–0,90 y 0,18–0,26 g/l respectivamente, n = 80), equinos (0,58–0,65 y 0,25–0,34 g/l, n = 49), caninos (1,09–1,25 y 0,31–0,42 g/l, n = 59) y porcinos (0,38–0,46 y 0,30–0,35, n = 30). Se constatan diferencias fisiológicas atribuibles a raza, sexo, edad y dieta. Se ratifica que bovinos, equinos y caninos pertenecen al patrón HDL, por registrar los más altos porcentajes de C–HDL, en tanto que los porcinos encuadran en el patrón LDL por exhibir las más altas tasas de C–LDL.For the correct interpretation of serum cholesterol values, they should be interpreted according to the type of lipoprotein in charge of its transportation. To obtain reference values and physiological variations of cholesterol bounded to high and low density lipoproteins (HDL–C and LDL–C), samples from 218 normocholesterolemic domestic animals from different breed, sex, age and feeding method were analyzed. For this purpose, HDL–C and LDL–C confidence intervals for cattle (0.72–0.90 and 0.18–0.26 g/l respectively, n = 80), horses (0.58–0.65 and 0.25–0.34 g/l, n = 49), dogs (1.09–1.25 and 0.31–0.42 g/l, n = 59) and swines (0.38–0.46 and 0.30–0.35 g/l, n = 30) were obtained. Physiological differences attributable to breed, sex, age and diet were verified. Results allow to state that cattle, horses and dogs belong to HDL pattern, as they register the highest HDL–C percentages, whereas swines belong to the LDL pattern, because they show the highest LDL–C rates
Optimal control theory based design of elasto-magnetic metamaterial
No full textA method to design a new type of metamaterial is presented. A two-step strategy to define an optimal long-range force distribution embedded in an elastic support to control wave propagation is considered.
The first step uses a linear quadratic regulator (LQR) to produce an optimal set of long-range interactions. In the second step, a least square passive approximation of the LQR optimal gains is determined. The paper investigates numerical solutions obtained by the previously described procedure. Finally, we discuss physical and engineering implications and practical use of the present study
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