Search results for "pic"
showing 10 items of 8215 documents
Function of odorant-binding proteins in the Drosophila melanogaster chemoreception
2017
National audience; Function of odorant-binding proteins in the Drosophila [i]melanogaster[/i] chemoreception. 18. rencontre du Club de neurobiologie des invertébrés
Recovery of pickling acid solutions by membrane technology: the EU REWACEM Project
2017
Resource recovery from industrial waste water by cutting edge membrane technologies
PICOPHYTOPLANKTON DYNAMICS IN NOISY MARINE ENVIRONMENT
2012
We present a stochastic reaction-diffusion-taxis model to describe the picophytoplankton dynamics along a water column. The model, which is valid for poorly mixed waters, typical of the Mediterranean Sea, considers intraspecific competition of picophytoplankton for light and nutrients. Random fluctuations of environmental variables are taken into account by adding a source of multiplicative noise to the diffusion equation for the picophytoplankton biomass concentration, whose distribution along the water column shows a maximum at a certain depth. After converting our results into chlorophyll a concentrations, we compare theoretical distributions, obtained for different noise intensities, wi…
Calpains promote α2β1 integrin turnover in non-recycling integrin pathway.
2012
Collagen receptor integrins recycle between the plasma membrane and endosomes and facilitate formation and turnover of focal adhesions. In contrast, clustering of α2β1 integrin with antibodies or the human pathogen echovirus 1 (EV1) causes redistribution of α2 integrin to perinuclear multivesicular bodies, α2-MVBs. We show here that the internalized clustered α2 integrin remains in α2-MVBs and is not recycled back to the plasma membrane. Instead, receptor clustering and internalization lead to an accelerated down-regulation of α2β1 integrin compared to the slow turnover of unclustered α2 integrin. EV1 infection or integrin degradation is not associated with proteasomal or autophagosomal pro…
De l’intérêt des pictogrammes pour figurer les représentations sociocognitives de l’espace résidentiel
2022
Quel rapport émotionnel un individu entretient-il avec son habitat ? Un jeu de simulation de négociation entre les différents critères d’évaluation de l’environnement résidentiel permet de recueillir un corpus de données. Son analyse implique une réflexion sur la formalisation des résultats obtenus. Deux options sont confrontées : une représentation en graphe polaire et une image composée de pictogrammes symbolisant les multiples dimensions de l’espace résidentiel qui peuvent motiver les choix d’installation. Cette dernière image permet une appréhension plus simple du lien entre les structures spatiales, cognitives et sociales.
An Integrated Method for Image Retrieval
1995
This paper presents an information fusion method for image retrieval; the retrieval strategy is based on statistical and geometrical features extracted from sub-images. Our goal is to find a set of best similar images related to a prototype image; this goal may be obtained according to image content rather than symbolic attributes. MRI (Magnetic Resonance Imaging) images and astronomical images have been adopted to test the method. Main steps of the procedure to retrieve images are: (l) Segmentation, (2) Matching, and (3) Decision. The first step involves four clusters co-operating segmentation algorithms; in the matching step, a sets of candidate similar images is provided; finally an info…
Deepening Inside the Pictorial Layers of Etruscan Sarcophagus of Hasti Afunei: An Innovative Micro-Sampling Technique for Raman/SERS Analyses
2019
The Hasti Afunei sarcophagus is a large Etruscan urn, made up of two chalky alabaster monoliths. Dated from the last quarter of the third century BC, it was found in 1826 in the small town of Chiusi (Tuscany- Il Colle place) by a landowner, Pietro Bonci Casuccini, who made it part of his private collection. The noble owner&rsquo
Tappeleva rapuhirviö : kauhun estetiikka lastenkulttuurissa
2016
Horror in picture books aimed at children appears in many forms and may be interpreted in multiple ways. It may include ghosts and monsters, nightmares and existential fears, or, violence and content labelled as “difficult”. These elements may be portrayed and interpreted as intellectually challenging and up- lifting, as cute, normal and ”not really frightening”, or as something violent and harmful or possibly empowering. In other words, cultural horror and the ways in which we discuss or use it may aim to shock, to reassure, or to entertain. The chosen way of meaning making depends on and reflects the social positioning and performative aims of the producer or interpreter. In this study, t…
A phenomenological view of pictures in teaching and a novel method for analysing them
2014
In this paper a novel method for analysing the content and teaching potential of pictures is presented. It is the four-field method, which is based on phenomenological thoughts about human experience, which combines factual knowledge with emotions and personal and social meanings. A biological example is given. Around this idea a course unit for using pictures in science teaching was organized. It was used in the training of both primary and secondary level teachers. From picture analysis the course unit proceeds to planning the use of pictures in teaching. A classification of the teaching functions of pictures is presented.
Typification of five plant names described based on specimens collected by Józef Warszewicz in Central and South America.
2022
Józef Warszewicz (1812–1864) was one of the first Polish naturalists to explore the flora of the tropical New World. During two expeditions to Central and South America (1844–1850 and 1850–1853) he collected and delivered to Europe up to twenty thousand plant specimens. To honour his service and his achievements in plant collections, different taxonomists described more than 100 taxa using the surname Warszewicz, for example in the genus name (Warszewiczia) and the species epithets (warszewiczii, warscewiczii, warszewicziana). Unfortunately, a large part of Warszewicz’s collection of plant species deposited in the Berlin Herbarium (B), including many type specimens was destroyed during Worl…