32 research outputs found
Geokinematics of Central Europe: New insights from the CERGOP-2/Environment Project
The Central European Geodynamics Project CERGOP/2, funded by the European Union from 2003to 2006 under the 5th Framework Programme, benefited from repeated measurements of thecoordinates of epoch and permanent GPS stations of the Central European GPS Reference Network(CEGRN), starting in 1994. Here we report on the results of the systematic processing of availabledata up to 2005. The analysis has yielded velocities for some 60 sites, covering a variety of CentralEuropean tectonic provinces, from the Adria indenter to the Tauern window, the Dinarides, thePannonian Basin, the Vrancea seismic zone and the Carpathian Mountains. The estimated velocitiesdefine kinematical patterns which outline, with varying spatial resolution depending on the stationdensity and history, the present day surface kinematics in Central Europe. Horizontal velocities areanalyzed after removal from the ITRF2000 estimated velocities of a rigid rotation accounting forthe mean motion of Europe: a ~2.3 mm/yr north-south oriented convergence rate between Adria andthe Southern Alps that can be considered to be the present day velocity of the Adria indenterrelative to the European foreland. An eastward extrusion zone initiates at the Tauern Window. Thelateral eastward flow towards the Pannonian Basin exhibits a gentle gradient from 1-1.5 mm/yrimmediately east of the Tauern Window to zero in the Pannonian Basin. This kinematic continuityimplies that the Pannonian plate fragment recently suggested by seismic data does not require aspecific Eulerian pole. On the southeastern boundary of the Adria microplate, we report a velocitydrop from 4-4.5 mm/yr motion near Matera to ~1 mm/yr north of the Dinarides, in the southwesternpart of the Pannonian Basin. A positive velocity gradient as one moves south from West Ukraineacross Rumania and Bulgaria is estimated to be 2 mm/yr on a scale of 600-800 km, as if the crustwere dragged by the counterclockwise rotation along the North Anatolian Fault Zone. This regimeapparently does not interfere with the Vrancea seismic zone: earthquakes there are sufficiently deep(> 100 km) that the brittle deformation at depth can be considered as decoupled from the creep atthe surface. We conclude that models of the Quaternary tectonics of Central and Eastern Europeshould not neglect the long wavelength, nearly aseismic deformation affecting the upper crust in theRomanian and Bulgarian regions
Recommended from our members
Conservation genetics of California abalone species
Over the past three decades, five species of abalone (genus Haliotis) in California waters have gone from harvestable resources to rare or even endangered species status. Both anthropogenic (overexploitation, habitat destruction) and natural (disease, predation) factors have contributed to the declines. This dissertation explores several aspects of abalone recovery and conservation along the coast of California through population genetic theory and techniques. Chapters I and II deal with the captive breeding of two California abalone species. Chapter I focuses on ensuring the specific purity of broodstock and maintaining genetic diversity in hatchery-bred progeny of the endangered white abalone (H. soreseni). Using DNA from these animals, genetic markers were developed, including five nuclear microsatellite loci and partial sequences of one nuclear (VERL) and two mitochondrial (COI and CytB) genes, to assess genetic variability in the species, aid in species identification (ergo prevent broodstock contamination), and potentially track the success of future outplanting of captive-reared animals in restocking operations. Chapter II quantifies the loss of genetic diversity resulting from the captive breeding of green abalone (H. fulgens). No change in overall heterozygosity was evident, but significant losses in allelic richness were found in the captive-bred green abalone versus that in wild populations. Chapters III, IV, and V center on inferring realized connectivity (gene flow) among natural populations of red (H. rufescens), black (H. cracherodii), and pink (H. corrugata) abalone. For red abalone (Chapter III), COI sequencing and microsatellite genotyping did not show significant genetic divergence among populations. In contrast, data from AFLPs became the first to suggest there is significant genetic differentiation among California red abalone populations. In black abalone (Chapter IV), data from AFLPs and one microsatellite locus showed significant divergence among multiple populations and exhibited a signal of isolation by distance consistent with a stepping-stone model of connectivity. Pink abalone (Chapter V) also showed evidence of restricted gene flow among populations. Finally, Chapters VI and VII focus on the fatal disease withering syndrome (WS). Chapter VI involves characterizing the post-esophageal microbiomes of red and black abalone with and without WS. Significant differences between the clone libraries isolated from healthy and diseased abalone suggested that WS has significant impact on the bacterial composition of the abalone post-esophageal microbiome, and specific membership of the microbiomes suggests that infection by Candidatus Xenohaliotis californiensis, the etiological agent of WS, may not be the sole cause of morbidity and mortality due to WS in abalone. Chapter VII is a preliminary study of genetic variation within C. X. californiensis samples from wild and captive-bred abalone species collected from multiple locations along the coast of California. Thus far, no variation has been found in partial sequences of either the 16S rDNA or recombinase A (recA) genes
"Attenuation of Gastric Lesions by Psychological Aspects of Aggression in Rats": Erratum.
Portaria de Credenciamento Enfam n. 87 de 22 de maio de 2017
Credencia o curso "Recursos no Código de Processo Civil" promovido pela Escola Superior da Magistratura do Estado do Pará- ESMPA