Search results for "ToF"
showing 10 items of 841 documents
L’autofagia durante l’oogenesi e i primi stadi di sviluppo embrionale in Paracentrotus lividus
2013
Ruolo dell’autofagia nell’oogenesi di riccio di mare Paracentrotus lividus
2013
Autophagy during development of sea urchin embryos
2009
Autophagy is a highly regulated mechanism that enhances cell eukaryotic survival under various environmental and cellular stresses, by breakdown and recycling of macromolecules and organelles. Here we report that in Paracentrotus lividus embryos autophagic process occur, at a lesser extend during physiological development and at greater levels after a cadmium treatment. By Acridine Orange staining, we found that embryonic cells exposed to cadmium display green fluorescence in cytoplasm and nucleus, and show considerable red fluorescent dots in cytoplasm. This evidence suggests formation of acidic auto-phagolysosomal vacuoles. By Neutral Red vital staining, specific for lysosomes and cellula…
Autofiction oulipienne: l'écriture au miroir
2010
L’autofiction, genre hybride qui mêle autobiographie et fiction, semble devoir s’incarner de manière originale, innovante, dans la production oulipienne. Revisitée, l’autofiction oulipienne permet de redéfinir le rapport entre œuvre et écrivain. C’est le choix stylistique qui consent aux oulipiens de renouveler l’autobiographie par l’intervention d’une écriture en apparence exclusivement fictionnelle mais qui, au contraire, recèle et dissimule des indices autobiographiques à déchiffrer pour une complète compréhension du texte : ce sont les autobiographies « impures » de Perec et celles poétiques de Roubaud. Toutefois, l’autofiction innovante n’est pas celle qui évoque le passé mais celle qu…
Genealogia dell'autofinzione italiana
2017
The article provides a genealogy of Italian autofiction analyzing texts by authors such as Walter Siti and Giulio Mozzi. An inquire upone the diary-like nature of autofictional narrative concludes the essay.
Soglie narrative e fotografiche in “Leggenda privata” di Michele Mari
2018
The aim of the paper is to analyze the narrative and photographic thresholds of Leggenda privata by Michele Mari (2017). The first case is a rhetorical artifice, a horror-gothic-fantastic narrative threshold, that Mari creates to distinguish the present of writing from the past of memories, intended, as I will try to demonstrate, to problematize the crucial questions of autobiography: incipit and explicit of the narration, literature and bios, fiction and non-fiction. Mari adds another expedient to this one: the inclusion of family photographs, selected from his personal archive, and that, for the variety of their authors, reveal another threshold, that between the writer and the photograph…
Philippe Vilain, des essais aux fictions pensives : transactions et complémentarité
2023
This article explores how in Vilain essayist "fictions pensives" produce fictional and reflexive enlargements of his thought, by demonstrating the writer's ability to seize his ordinary experience to transform it into a literary object as well as a structured thought. Cet article explore comment chez Vilain essayiste les fictions pensives produisent des élargissements fictionnels et réflexifs de sa pensée, en démontrant la capacité de l’écrivain à s’emparer de son expérience ordinaire pour la transformer aussi bien en objet littéraire qu’en pensée structurée.
Parallel Measurements of in-vivo Skin Autofluorescence Lifetimes and Photobleaching Rates
2015
Experimental methodology for parallel measurements of in-vivo skin autofluorescence (AF) lifetimes and photo-bleaching dynamic has been developed and tested. The AF lifetime decay distributions were periodically collected from fixed tissue area with subsequent detection of the fluorescence intensity decrease dynamic at different time shifts after the pulse excitation. Temporal distributions of skin AF lifetimes and bleaching dynamic were collected and analyzed by means of commercial time-correlated single photon counting system. Details of the equipment and data processing are described as well as some measurement results that confirm the feasibility of the proposed technology.
Photobleaching measurements of pigmented and vascular skin lesions: results of a clinical trial
2011
The autofluorescence photobleaching intensity dynamics of in vivo skin and skin pathologies under continuous 532 nm laser irradiation have been studied. Overall the 141 human skin malformations were investigated by laser induced skin autofluorescence photobleaching analysis. Details of equipment are described along with some measurement results illustrating potentiality of the technology.
Imaging of LED-excited autofluorescence photobleaching rates for skin diagnostics
2019
The aim of this study is to develop a novel non-invasive approach for skin cancer (melanoma, basal cell and squamous cell carcinomas) diagnostics by mapping the AF intensity decrease (photo-bleaching) rates under continuous 405 nm LED excitation. For parametric mapping of skin AF intensity decrease rates a sequence of filtered AF imaging under 405 nm LED excitation for 20 seconds at a power density of ~7 mW/cm2 with a frame rate 0.5 fps was recorded and analyzed by cloud-based prototype device. Several clinical cases and potential future applications of the proposed autofluorescence photobleaching rate imaging technique are discussed.