Search results for "IPA"
showing 10 items of 5795 documents
Machine Learning-Based Classification of Vector Vortex Beams.
2020
Structured light is attracting significant attention for its diverse applications in both classical and quantum optics. The so-called vector vortex beams display peculiar properties in both contexts due to the non-trivial correlations between optical polarization and orbital angular momentum. Here we demonstrate a new, flexible experimental approach to the classification of vortex vector beams. We first describe a platform for generating arbitrary complex vector vortex beams inspired to photonic quantum walks. We then exploit recent machine learning methods -- namely convolutional neural networks and principal component analysis -- to recognize and classify specific polarization patterns. O…
Data from: Functional responses of multi-taxa communities to disturbance and stress gradients in a restored floodplain
2015
1. Trait-based approaches can reveal the mechanisms through which disturbances or stress impact communities, allowing comparisons of the role of different mechanisms in shaping communities among taxonomic groups. Such information can lead to higher comparability, transferability and predictability of the outcome of restoration projects. However, multitaxa trait-based approaches were rarely used in the context of ecosystem restoration. 2. We investigated the responses to environmental gradients of seven taxa (vascular plants, staphylinid and carabid beetles, spiders, isopods, diplopods and earthworms) in a restored floodplain using a species traits approach. We assessed the impact of flood d…
Zanhasaponins A and B, Antiphospholipase A2 Saponins from an Antiinflammatory Extract of Zanha africana Root Bark
1997
A MeOH extract from Z. africana was examined for topical antiinflammatory activity and proved to be active against arachidonic acid (AA) acute edema, 12-O-tetradecanoylphorbol 13-acetate (TPA)-induced chronic inflammation, and oxazolone delayed-type hypersensitivity in mice. The extract also showed significant inhibitory activity of Naja naja phospholipase A2 when a polarographic method was used. Two oleanane-type triterpene saponins, zanhasaponins A (1) and B (2), and the cyclitol pinitol (4), isolated from the extract, were active as inhibitors of PLA2. A further saponin, zanhasaponin C (3) was inactive in this assay.
Preíndices que determinan la anticipación del portero de hockey hierba ante un golpeo de revés
2015
La tesis se encuadra en el estudio de los elementos perceptivos y atencionales que modulan la captación de información, aspecto clave para la toma de decisión y posterior acción motriz que conforman el modelo de procesamiento de la información (Marteniuk, 1976). Para la correcta ejecución de muchas de las acciones que se realizan en la actividad deportiva, la capacidad de extraer del entorno la información más relevante y procesarla adecuadamente es esencial. Esta capacidad se torna más relevante aún en los deportes de predominio de situaciones abiertas, como las que caracterizan a los deportes de equipo, donde la dinámica del entorno en el que se desarrollan las acciones genera gran cantid…
Anticipated Grief in Relatives of People with Alzheimer's Disease: Discourse Analysis
2021
Resumen La enfermedad de Alzheimer (EA) es la demencia más frecuente, considerada un proceso crónico e incurable. Los cuidadores de personas con EA pueden experimentar duelo anticipado. El objetivo fue observar el desarrollo de duelo anticipado en familiares de personas con EA. Participaron 10 cuidadores familiares de personas con EA en estado moderado o avanzado (70 % mujeres), de entre 18 y 80 años. Respondieron una entrevista semiestructurada (sentimientos, reconocimiento de la muerte, reorganización familiar, esperanza, facilitación o resistencia a la muerte y aproximación o distanciamiento del familiar). Se empleó la técnica del análisis cualitativo del contenido empleando la triangula…
DALLA PUNIZIONE ALLA RIPARAZIONE? ASPIRAZIONI E LIMITI DELL’ENNESIMA RIFORMA ANTICORRUZIONE (LEGGE N. 69/2015)
2015
Il testo propone un commento critico delle norme anticorruzione contenute nella l. 69/2015. La tesi di fondo è che la dichiarata aspirazione a privilegiare una strategia riparatoria è in realtà smentita dal contenuto effettivo di molte delle norme introdotte, le quali mantengono invece un tenore saldamente punitivo.
Antifungal and post-antifungal effects of chlorhexidine, fluconazole, chitosan and its combinations on Candida albicans
2010
Objective: The aim of this work was to assess the antifungal and post-antifungal effects of chlorhexidine, fluconazole, chitosan and its combinations on virulence factors of Candida albicans. Study Design: Ten isolated strains of Candida albicans obtained from 10 patients with oral candidiasis and a collection strain of C. albicans were treated with antifungal agents in different concentrations or combinations of them. Virulence factors analyzed were the cell surface hydrophobicity, the germinative tube development, the phospholipase activity and the post-antifungal effect of that exposure. Results: Virulence factors of the isolated strains obtained from patients together with the collectio…
Gamma delta T cells inhibit in vitro growth of the asexual blood stages of Plasmodium falciparum by a granule exocytosis-dependent cytotoxic pathway …
2004
Several reports have stated the ability of gamma delta T cells to inhibit the growth of the asexual blood stages of Plasmodium falciparum in vitro. However, little information is available about the mechanisms involved. In this study, in vitro systems were used to study the role of the granule exocytosis-dependent cytotoxic pathway in the growth inhibition/killing of P. falciparum by human gamma delta T cells. Our results show that the inhibition requires cell-to-cell contact and that gamma delta T cells kill the asexual blood stages of P. falciparum through a granule exocytosis-dependent cytotoxic pathway after recognition of certain ligands or molecules expressed on the surface of infecte…
Elogio de la manifestación
2002
Mito e storia nelle isole Eolie
1996
Si mettono a confronto le tradizioni rispettivamente di Antioco di Siracusa e di Diodoro Siculo sulla fondazione di Lipari ad opera dei Rodio Cnidi giunti in Sicilia all'epoca di Pentatlo. Si tratta di due filoni di tradizioni differenti, che tendono a mostrare un profilo differente dell'identità degli abitanti dell'arcipelago eoliano e dei loro rapporti nei confronti delle precedenti popolazioni. Il mito sulla più antica occupazione delle isole da parte degli Ausoni e sulla funzione regale svolta da Eolo e dai suoi figli è di antica matrice ionico-calcidese, e mira a sottolineare la continuità della "civilizzatrice" presenza greca in queste isole e nelle zone della Sicilia che furono gover…