Search results for " Pat"
showing 10 items of 12688 documents
The ALICE experiment at the CERN LHC
2008
Journal of Instrumentation 3(08), S08002 (2008). doi:10.1088/1748-0221/3/08/S08002
First-order visual interneurons distribute distinct contrast and luminance information across ON and OFF pathways to achieve stable behavior
2022
Source data of the paper Ketkar, Gür, Molina-Obando et al. 2022, eLife. We analyzed the behavioral contribution and physiological response properties of first order interneurons L1, L2 and L3 in the Drosophila melanogaster visual system. Data are sorted by figures and comprise either behavioral measurements of flies walking on an air-cushioned ball while being shown visual stimuli, or in vivo two photon microscopy recordings of L1-L3 calcium responses. Please find all relevant information to use the data in the README file. The code to analyze the data, either written in Matlab or Python, is found at https://github.com/silieslab/Ketkar-Gur-MolinaObando-etal2022
(A,B) In vivo GCaMP6f signals recorded in layers M1, M5 and M9/10 of Mi1 (A) and Tm3 (B) neurons, before (blue, green) and after (gray, red) applicat…
2019
Sensory systems sequentially extract increasingly complex features. ON and OFF pathways, for example, encode increases or decreases of a stimulus from a common input. This ON/OFF pathway split is thought to occur at individual synaptic connections through a sign-inverting synapse in one of the pathways. Here, we show that ON selectivity is a multisynaptic process in the Drosophila visual system. A pharmacogenetics approach demonstrates that both glutamatergic inhibition through GluClα and GABAergic inhibition through Rdl mediate ON responses. Although neurons postsynaptic to the glutamatergic ON pathway input L1 lose all responses in GluClα mutants, they are resistant to a cell-type-specifi…
Extraction d'un graphe de navigabilité à partir d'un nuage de points 3D enrichis
2017
International audience; Ce travail se place dans le cadre général du projet ANR pLaTINUM lié à la navigation autonome et plus parti-culièrement à la génération de cartes pour la navigation basée perception. Il consiste à développer une nouvelle méthode pour résumer une carte 3D (un nuage dense de points 3D) et extraire un graphe de navigabilité facilitant l'utilisation de cette carte par des systèmes de navigation à ressources matérielles limitées (smart-phones, voitures, robots.. .). Cette méthode vise à ex-traire les régions les plus saillantes de l'environnement étudié afin de construire une carte récapitulative. Ce processus de résumé de carte basé sur la vision est appliqué d'une façon…
Anatomic and functional follow-up of patients with an idiopathic epiretinal membrane and a preserved visual acuity
2013
Purpose: To determine the anatomic and functional retinal modifications in patients with an idiopathic epiretinal membrane (ERM) and a preserved visual acuity (VA).Methods: Monocentric, prospective study in 24 eyes of 24 patients with an ERM and a VA better than 20/25. Recorded data were best corrected VA on ETDRS scale, retinal anatomic lesions on spectral-domain OCT, retinal sensitivities on microperimetry and macular and foveal thicknesses at 0 and 6 months.Results: At inclusion, mean VA was 84 ± 5 letters, mean macular sensitivity was 14.0 ± 1.4 decibels (dB) and mean foveal sensitivity was 14,4 ± 1,5 dB. Mean macular thickness was 351 ± 34 µm and mean foveal thickness was 348 ± 66 µm. …
Motion perception in early glaucoma
2013
Purpose: The aim of our study was to underline the changes in the movement perception for early glaucoma. Our working hypothesis consisted in inquiring if the impairment of the magnocellular pathway may modify the movement perception capabilities in the visual field, more particularly in its peripheral area.Methods: We included 14 healthy subjects and 14 patients with early primary open angle glaucoma. A moving target was presented on a semicircular screen (1.8 m diameter); participants were asked to localize the Ending Point (EP) of each movement. Each stimulus consisted in a white dot (0,72° of diameter) moving horizontally with the imposed velocity profile. Two different laws of motion w…
Assessment of quality of life in patients with visual impairments
2021
Diplomdarbs ir uzrakstīts latviešu valodā uz 61 lapām, satur 29 attēlus, 2 tabulas, 2 pielikumus. Darba izstrādei tika izmantoti 47 literatūras un interneta avoti. Ievads: Dzīves kvalitātes jēdziens ietver veselumā vairākus dzīves aspektus un dimensijas- objektīvos indikatorus, ekonomisko situāciju, nodarbinātību, mājokli, veselību un veselības aprūpi, ģimeni, sociālo līdzdalību, gan subjektīvo apmierinātību ar dzīvi kopumā un atsevišķām tās jomām. Šajā pētījumā autore pievērsīsies dzīves kvalitātes izpētei pacientiem ar vājredzību. Ar veselību saistītā dzīves kvalitāte rādītāji nosaka vispārējo apmierinātību ar dzīvi ar mērķi identificēt veselības riskus un sniegt atbilstošu iejaukšanās st…
Endophytic Fungi in Asymptomatic Vitis vinifera L. and their Effects on Plasmopara viticola
2016
During a multi-year study on the life cycle of Plasmopara viticola to assess the typical epidemiology of downy mildew on grapevine (Vitis vinifera) in west Sicily (Italy), several leaves on which the downy mildew had collapsed were found and observed in a vineyard located in Marsala, in Trapani Province. An antagonistic fungus was isolated from these leaves and named A20; through its morphology, it was identified as a hyphomycete belonging to the genus Acremonium. The antagonism of A20 against the asexual and sexual spores of P. viticola, as well as endophytic nature of the genus Acremonium in V. vinifera were confirmed by further studies which have been carried out over the past decade. In…
Un altro volto del diritto penale: la vittima nei reati contro il patrimonio
2022
La tesi intende analizzare il tema classico dei reati contro il patrimonio da una nuova prospettiva, quella della vittima, per troppo tempo solo una comparsa tanto del diritto penale sostanziale, che processuale, allo scopo di comprendere se e come le novità che l'hanno riguardata negli ultimi anni le abbiano davvero giovato o se, invece, sia necessario intervenire ancora, in modo più incisivo.
Pacientu viedoklis par medicīnas māsas vizuālo tēlu
2017
Maģistra darba tēma – Pacientu viedoklis par medicīnas māsas vizuālo tēlu. Tēmas aktualitāti nosaka tas, ka medicīnas māsas vizuālā tēla aktualizēšana un pilnveidošana varētu uzlabot pacientu un māsu saskarsmes procesu un savstarpējo sadarbību. Darba mērķis ir noskaidrot pacientu viedokli par medicīnas māsas vizuālo tēlu. Pētniecības uzdevumi ir veikt zinātniskās literatūras apkopošanu un analīzi par medicīnas māsas vizuālo tēlu mūsdienās, analizēt māsas vizuālā tēla nozīmi aprūpes un saskarsmes kontekstā saistībā ar māszinību teorijām, izstrādāt pētījuma instrumentu – aptaujas anketu, veikt pilotpētījumu un veikt nepieciešamās izmaiņas anketā, veikt respondentu anketēšanu, apkopot un anali…