Geotechnical Characterization of the Flood Plain Embankments of the Serchio River (Tuscany, Italy)

The flood plain embankments of the Serchio river have been constructed since the XVIII century and construction details are not known. These embankments have experienced failures several times during their life (last in December 2009). After the last event a detailed geotechnical investigation has been carried out. This paper discusses the necessary criteria for a cost – effective campaign considering the total length of the embankments (30 km) and the requested level of detail. In fact levee failure, although it is of limited extension, causes the achievement of the ultimate limit state of the entire embankment system. The campaign, in addition to laboratory tests, included boreholes, CPTu, permeability tests, 2D geo-electric tomography and 15 tests performed by the use of the continuous core drilling system. This last has proved to be a very useful tool for obtaining the more accurate evaluation of the in situ soil density (as confirmed by CPTu results). CPTu test, economical and expeditious, has proved to be an indispensable tool for delineating soil stratigraphy. In fact, their results combined with the borehole logs and laboratory testing provide extensive information. Geo-electric investigations can be very useful to highlight anomalies and heterogeneities in the cross section. Eventually, it is worthwhile to stress that embankments have generally a height of less than 4 m and a width between 1.2 and 3 m. This has restricted the investigation tools that could be used in this peculiar case

Comparable Estimates of Intergenerational Income Mobility in Italy

This paper examines the degree of intergenerational economic mobility in Italy. It adds to the growing number of international studies of the extent to which economic status is passed on across generations. On the basis of recent econometric innovations used in the literature, I am able to overcome some of the data limitations for Italy. I use the Historical Database of the Bank of Italy households survey, which contains information from 1977 to 2002. Retrospective information in the repeated cross-sections may be exploited by applying a two-sample two stage least squares estimation. I estimate the intergenerational income elasticity for Italy and find that mobility is limited. From an overall comparison, the evidence provided in this paper hints at Italy in the low-mobility group among advanced societies in the range of values characterising the US and the UK. The analysis of the results allows a characterization of interesting descriptive features in the transmission of economic status in Italy.Intergenerational income mobility; two-sample two-stage least squares; mobility patterns.

Rupture de matériaux mous : De l’élasticité linéaire à l’endommagement aux échelles microscopiques

Our novel experimental approach consists in studying fracture mechanics of soft materials, mainly polymer and colloidal gels, which have microstructures with large typical length scales. This increase in the microscopic length scale will consequently increase the typical size of the process zone and make its observation easier with standard microscopy techniques (optical or confocal).To do so, we designed a novel experimental device to study crack propagation in such soft materials. This experiment enables us to grow a unique crack in a controlled way in a soft specimen and to look at the crack tip at high magnification for crack velocities between 1 µm/s and 1cm/s. Working on physical polymer gels, we analysed the crack shape and crack displacement fields (using Digital Image Correlation) at large and intermediate scales for various velocities. We realized there was a separation of scales between the scale at which LEFM applies, the scale at which elastic nonlinearities emerge and the scale at which dissipation occurs. This last scale could not be investigated with the polymer gel. Recent experiments on colloidal gels, which have a microscopic length scale bigger than the one of polymer gels, show that we are able to probe damage at the microstructural scale.Notre nouvelle approche expérimentale consiste à étudier la fissuration de matériaux mous, principalement des gels polymériques et colloidaux, qui ont des tailles microstructurales micrométriques. Cette augmentation de la taille microscopique va avoir pour conséquence d’augmenter la taille de la zone de process et va rendre son observation plus facile avec des moyens standard de microscopie (à transmission et confocale).Pour se faire, nous avons mis au point un nouveau dispositif expérimental pour étudier la propagation de fissures dans des matériaux mous. Cette expérience permet de faire croître une fissure de manière contrôlée dans un échantillon mou et d’inspecter la pointe de fissure à haute résolution pour des fissures se propageant entre 1 µm/s and 1cm/s. En travaillant avec des gels de polymère physiques, nous avons analyse la forme de fissure ainsi que les champs de déplacement proches pointe (en utilisant des techniques de corrélation d’image) à petites et grandes échelles et à différentes vitesses. Nous avons montré qu’il existait une séparation d’échelles spatiales entre les échelles où l’élasticité linéaire s’applique, les échelles auxquelles les non linéarités émergent et les échelles auxquelles la dissipation se produit. Cette dernière échelle n’a pas pu être investigué dans le cas de gels polymériques. De récentes expériences sur des gels colloïdaux, ayant une longueur micro-structurale plus grande que celle des gels polymers, montre que nous sommes capables de sonder en temps réel les échelles d’endommagement lors de la fissuration

Voltage-dependent K+ channels as oncotargets in malignant gliomas

SCOPUS: no.jinfo:eu-repo/semantics/publishe

Permeabilidad in situ en los ejes de presas y túnel de derivación del Complejo Hidroeléctrico Arazá

Publicación a texto completo no autorizada por el autorDetermina los valores de la permeabilidad mediante ensayos hidráulicos in situ tipo Lugeon y Lefranc en el eje de las presas y el portal de entrada al túnel de derivación y el eje del conducto forzado de las centrales hidroeléctricas Limacpunco, Ttio y Capiri del Complejo Hidroeléctrico Araza ubicado en la cuenca del Río Araza. Realiza la interpretación de los gráficos de Presión Efectiva (PEF) vs Q (l/min/m), para determinar los valores de permeabilidad en el portal de entrada del túnel derivación de las tres centrales hidroeléctricas.Tesi

The Big Meal

Somewhere in America, in a typical restaurant on a typical night, Sam and Nicole first meet. Sparks fly. And so, begins the extraordinary tale of five generations of an ordinary family, from first kiss to final good-bye. Packed with humanity and humor, The Big Meal chronicles the loves, trials, and resilience of modern families. Playwright Dan LeFranc won the 2010 NYT Outstanding Playwright Award for this big-hearted, theatrically inventive comedy.https://digitalcommons.montclair.edu/theatre-dance-performances-2022-spring/1002/thumbnail.jp