Between 1988 and 2007, during the courses of the European School of Genetic Medicine, many of us had the opportunity to appreciate the tolerant and open-minded personality of Victor McKusick. He was ...gifted with a unique foresight for the innovations introduced into medicine through the development of the Human Genome Project. The aim of our separate contributions in this article is to document how his insights had an important impact on the European medical training system.
Understanding the fracturing–healing–refracturing cycle is a fundamental part of studying the deformation dynamics and the permeability evolution of rock systems. Previous studies, however, have not ...examined the influence of healing i.e. fracture-closure through vein formation and the mechanical properties of the “healed” fractures (veins) on the rock deformation. We present results from a two-dimensional coupled hydro-mechanical model which simulates large time and spatial scale dynamic fracturing and healing of a porous medium under the influence of gravity, tectonic stretching and elevated fluid pressures. Our results show that healing decreases the local porosity, and that the veins' strength is more important than their elastic modulus in influencing the deformation and the evolving patterns. Hard veins make the aggregate progressively stronger, results in an overall healing of the system, limited fracturing and thus fluid flow, greater stresses and delayed fracture saturation. Weak veins make the system weaker in which refracturing of the healed bonds is the dominant process that creates more open fractures and thus increases the permeability. These results provide clues for the importance of the veins' mechanical properties and can enhance our understanding of the deformation dynamics and the permeability evolution of the rock systems.
•We use a hydro-mechanical model to simulate fracturing and healing of porous rocks.•Deformation is applied by gravity, tectonic stretching and high fluid pressures.•Strong veins make the system strong, impede refracturing and can limit fluid flow.•Weak veins localize refracturing and thus can stimulate fluid flow.
Cores from four coastal plains of the Mar Ligure Sea in N Tuscany and E Liguria (Italy) were investigated by means of pollen analysis to delineate the Holocene landscape history of the NW Italian ...coasts. In the first half of the Holocene (c. 9800—7000 cal. yr BP) all four sites show elevated percentages of Abies pollen which suggest the local presence of fir woods (with Ulmus, Tilia, etc.). In the second half of the Holocene (from 7000 cal. yr BP), Abies becomes locally extinct along the coasts leaving space for the development of mosaic landscapes formed by open meso-thermophilous woods (with deciduous Quercus, Alnus , Corylus) and Mediterranean maquis (with Erica cf. arborea). The new data represent a significant contribution to the reconstruction of the landscape history of the NW Italian coasts and of the history of fir in Italy. Along all examined cores discontinuous pollen records show that initially the coastal areas were characterized by retrodunal wetlands; after c. 6000 cal. yr BP only the larger plains in N Tuscany remained extensively damp while the smaller plains in E Liguria were buried (and/or drained). Thus, these buried deposits of ‘fossil’ coastal wetlands proved to be only partially useful for high-resolution environmental archaeology and history studies. Nonetheless they are unique traces of ecosystems that provided important local economic resources for millennia and formed elements of the coastal cultural landscapes which have almost totally disappeared today.
This article discusses plays and other works by Chekhov as performed in translation in contemporary theatres in Madrid presenting, in the main, my findings from the interviews I had with three ...theatre directors dedicated to bringing a more authentic vision of Chekhov to the Madrid stage. Juan Pastor, Ángel Gutiérrez and Irinia Kouberskaya have accomplished much with their theatre groups and theatres in Madrid with regard to the promotion of Chekhov's theatre on the Spanish stage. Two of these theatre directors, Gutiérrez and Kouberskaya, have wide experience of Russia and of Russian theatre traditions. Innovative aspects of certain of the Chekhov productions of these three directors, which include The Three Sistsers/Las tres hermanas and The Seagull/La gaviota, are commented upon and their roles as popularizers of Chekhov's drama are considered.
S starši se je več otrok preselilo iz Sv. Duha na Ostrem Vrhu na Sv. Jernej pri Ločah. Trezika (na fotografiji z leve) se je rodila leta 1917. Na Sv. Jerneju je prevzela gostilno Vališer in jo tudi ...vodila vse do prehitre smrti. Rodila je šest fantov. Umrla je leta 1962.Ana (na fotografiji z desne) se rodila leta 1912. Poročila se je na Lipoglav pri Ločah, kjer je bila gospodinja. Rodila je dve hčeri. Umrla je leta 2001.
U-Pb zircon dating, Sr-Nd isotope tracing and major/trace/RE element analyses were performed to constrain the age, origin and geodynamic significance of plagiogranites that intrude lherzolites and ...gabbros in the Ligurian Alps and the Northern Apennines. In addition, a host Fe-diorite was investigated. Samples from the Ligurian Alps were collected from the Voltri Group and the Sestri-Voltaggio Zone, whereas the plagiogranites from the Northern Apennines were taken in the Bracco unit. All these units have been affected by Alpine metamorphism reaching eclogite facies in the Voltri Group, blueschist degree in the Sestri Voltaggio samples, and prehnite-pumpellyite facies in the Bracco Unit, which has additionally been affected by rodingitization.
U-Pb zircon ages of 150 ± 1, 153 ± 1 and ≈ 156 Ma were obtained, respectively, for two plagiogranites and the host Fe-diorite in the Ligurian Alps, and an age of 153 ± 1 Ma was determined for the plagiogranite in Northern Apennines. Inherited components in zircon and initial Pb in plagioclase indicate mixing of variously differentiated basaltic magmas with small amounts of roughly 1.7–2.1 Ga old continental crust material. REE patterns in both the plagiogranites and the host diorite are characterized by high REE abundance, and moderate LREE enrichment. Nd isotopic compositions lie in the range of N-MORB sources, yielding initial epsilon Nd values between + 8.8 and + 9.7, whereas Sr is isotopically heterogeneous. The geochemical pattern of the plagiogranites and the host Fe-diorite requires melting of a MORB-type mantle source that experienced LREE enrichment shortly before melting. The most likely explanation for such enrichment is the injection of melts derived by small degrees of melting from an adjacent mantle region. The basaltic, LREE-enriched parent magmas generated from this enriched domain have probably undergone up to about 72% of low-pressure fractional crystallization prior to their emplacement into the gabbro-peridotite complex.
The 156–150 Ma magmatism occurred in close relation to normal faulting, sedimentation of breccias, and detachment of the mantle complex from its overlying continental crust, followed by exposure on the ocean floor. This tectono-magmatic event in the Ligurian Alps and the Northern Apennines reflects rifting of the Adriatic-Iberian continental plate segment, preceding wider opening of the Piedmont-Ligurian ocean basin and pillow basalt deposition.
1 - lavori di costruzione di una diga
2 - un masso è immerso in acqua
3 - un esplosione
4 - il pietrisco in un cantiere viene lavorato
5 - pietre gettate in mare
5 - stones thrown into the sea
4 - ...the crushed stone in a construction site is worked
3 - an explosion
2 - a boulder is immersed in water
1 - construction of a dam
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