Search results for " delta"
showing 10 items of 154 documents
Neogene and Quaternary fan-delta deposits in southeastern Spain. Field Guide.
1991
[EN] A guided field-trip througIt tIta basins of Fortuna, Carrascoy-Murcia, Lower Segura and Cope. with detailed sections, interpretation of rock bodies and sedientary models.
Low-Rank Tucker-2 Model for Multi-Subject fMRI Data Decomposition with Spatial Sparsity Constraint
2022
Tucker decomposition can provide an intuitive summary to understand brain function by decomposing multi-subject fMRI data into a core tensor and multiple factor matrices, and was mostly used to extract functional connectivity patterns across time/subjects using orthogonality constraints. However, these algorithms are unsuitable for extracting common spatial and temporal patterns across subjects due to distinct characteristics such as high-level noise. Motivated by a successful application of Tucker decomposition to image denoising and the intrinsic sparsity of spatial activations in fMRI, we propose a low-rank Tucker-2 model with spatial sparsity constraint to analyze multi-subject fMRI dat…
A modal approach for the evaluation of the response sensitivity of structural systems subjected to non-stationary random processes
2005
A method for the evaluation of the response sensitivity of both classically and non-classically damped discrete linear structural systems under stochastic actions is presented. The proposed approach requires the following items: (a) a suitable modal expansion of the response; (b) the derivation in analytical form of the equations governing the evolution of the derivatives of the response (the so-called sensitivity equations) with respect to the parameters that define the structural model; (c) an extensive use of the Kronecker algebra for determining the analytical expressions of the sensitivity of the structural response statistics to non-stationary random input processes. Moreover, a step-…
Depositional Environment of the Devonian Quartz Sandstones in the Bāle Sand Pits
2014
This paper summarises data about the depositional environment of Devonian quartz sandstones in Latvia and discusses new fieldwork data from Bāle 1 and Bāle 2 sand pits. The commercial bed in these sand pits is composed of fine to gravel size grained white and pale gray sandstones with mud clasts and quartz pebbles in places. Studies in Bāle sand pit sectors 1 and 2 suggest the deposition of sediments in details channel and sand bars, with the scarce influence of tidal processes on sedimentation.
Impiego di insetticidi di origine vegetale per il contenimento delle popolazioni di Bagrada hilaris nei cappereti panteschi
2007
Bagrada hilaris, nota con il nome di Cimice delle crocifere, è un Eterottero Pentatomide dannoso al cappero nell’isola di Pantelleria. Per verificare la possibilità di utilizzare insetticidi a basso impatto ambientale per il contenimento delle popolazioni di questo fitofago, sono state condotte prove in laboratorio e in campo con due insetticidi di origine vegetale, Show e Neemik, e un insetticida di sintesi, Decis Jet, utilizzato come controllo. Nel 2004 sono state condotte prove in laboratorio atte a definire i valori di CL70 e le curve dose-risposta a diverse concentrazioni di formulato commerciale. Nel biennio 2005-06, l’efficacia degli insetticidi è stata valutata con prove in campo ef…
Introducing Pseudo-Singularity Points for Efficient Fingerprints Classification and Recognition
2010
Fingerprint classification and matching are two key issues in automatic fingerprint recognition. Generally, fingerprint recognition is based on a set of relevant local characteristics, such as ridge ending and bifurcation (minutiae). Fingerprint classification is based on fingerprint global features, such as core and delta singularity points. Unfortunately, singularity points are not always present in a fingerprint image: the acquisition process is not ideal, so that the fingerprint is broken, or the fingerprint belongs to the arch class. In the above cases, pseudo-singularity-points will be detected and extracted to make possible fingerprint classification and matching. As result, fingerpr…
Butyrophilin 3A1 presents phosphoantigens to human γδ T cells: the fourth model of antigen presentation in the immune system.
2013
Butyrophilin 3A1 presents phosphoantigens to human γδ T cells: the fourth model of antigen presentation in the immune system
Induction of efficient killing of human colon cancer initiating cells by gamma delta T lymphocytes: therapeutic applications
2012
Advances in immunotherapy of castration-resistant prostate cancer: Bisphosphonates, phosphoantigens and more.
2008
El reto del conocimiento en la practica del Trabajo Social
2005
En el presente artículo se pretende subrayar la importancia de que desde el Trabajo Social y la Educación Social se profundice en el conocimiento y la utilización de las Tecnologías de la Información y la Comunicación (TIC) como recurso y requisito para la intervención socioeducativa. Unas tecnologías que cada vez ostentan un mayor protagonismo en nuestra sociedad y ante las que, además, es preciso constituir una adecuada respuesta desde las entidades que habrán de asumir, tarde o temprano, la responsabilidad de atender las nuevas situaciones de exclusión a las que se podrán ver sometidos aquellos que no tengan posibilidad de acceder a ellas. En este sentido, se destaca la necesidad de que …