188 research outputs found
Etiology and management of pediatric intestinal failure: Focus on the non-digestive causes
Background: Intestinal failure (IF) is defined as reduction in functioning gut mass below the minimal amount necessary for adequate digestion and absorption. In most cases, IF results from intrinsic diseases of the gastrointestinal tract (digestive IF) (DIF); few cases arise from digestive vascular components, gut annexed (liver and pancreas) and extra-digestive organs or from systemic diseases (non-digestive IF) (NDIF). The present review revised etiology and treatments of DIF and NDIF, with special focus on the pathophysiological mechanisms, whereby NDIF develops. Methods: We performed a comprehensive search of published literature from January 2010 to the present by selecting the following search strings: âintestinal failureâ OR âhome parenteral nutritionâ OR âshort bowel syndromeâ OR âchronic pseudo-obstructionâ OR âchronic intestinal pseudo-obstructionâ OR âautoimmune enteropathyâ OR âlong-term parenteral nutritionâ. Results: We collected overall 1656 patients with well-documented etiology of IF: 1419 with DIF (86%) and 237 with NDIF (14%), 55% males and 45% females. Among DIF cases, 66% had SBS and among NDIF cases 90% had malabsorption/maldigestion. Conclusions: The improved availability of diagnostic and therapeutic tools has increased prevalence and life expectancy of rare and severe diseases responsible for IF. The present review greatly expands the spectrum of knowledge on the pathophysiological mechanisms through which the diseases not strictly affecting the intestine can cause IF. In view of the rarity of the majority of pediatric IF diseases, the development of IF Registries is strongly required; in fact, through information flow within the network, the Registries could improve IF knowledge and management
Non una donna in politica, ma una donna politica: Womenâs Political Language in an Italian Context
This chapter focuses on the metaphorical content of Italian women politiciansâ speech to investigate if particularly âfeminineâ language traits (see Jesperson 1922: 237â54) can be identified, or whether, as the driving hypothesis of this study posits, it is ministerial remit that conditions the use of a politicianâs language more than any other single factor. This hypothesis is tested by examining a corpus of speeches, press interviews and press releases of five women ministers in the Prodi-led administration in Italy, covering the period June 2006 to May 2007
Micromechanical Properties of Injection-Molded StarchâWood Particle Composites
The micromechanical properties of injection molded starchâwood particle composites were investigated as a function of particle content and humidity conditions.
The composite materials were characterized by scanning electron microscopy and X-ray diffraction methods. The microhardness
of the composites was shown to increase notably with the concentration of the wood particles. In addition,creep behavior under the indenter and temperature dependence
were evaluated in terms of the independent contribution of the starch matrix and the wood microparticles to the hardness value. The influence of drying time on the density
and weight uptake of the injection-molded composites was highlighted. The results revealed the role of the mechanism of water evaporation, showing that the dependence of water uptake and temperature was greater for the starchâwood composites than for the pure starch sample. Experiments performed during the drying process at 70°C indicated that
the wood in the starch composites did not prevent water loss from the samples.Peer reviewe
La construction d'un lexique fondamental de polyformes selon leur usage
Univ. Sophie Antipolis de Nice 19-21 febbrai
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