Search results for " RAD"
showing 10 items of 7082 documents
Manejo de schwannoma vestibular con radiaciones : experiencia del IVO
2013
A partir de la década de los 70, nace la radiocirugía (RC) como tratamiento alternativo a la cirugía convencional en el tratamiento de los schwannomas vestibulares(SV). Poco a poco dicha técnica, ha ido desbancando a la microcirugía alcanzando cifras del 58 % de tratamientos de RC frente a la cirugía convencional. En el presente estudio analizamos el resultado de 167 tumores tratados con radiaciones (bien con dosis única (RC) o con dosis fraccionada, RT Estereotáctica Fraccionada (RTEF), determinando el control local y las complicaciones como tratamiento del SV. Analizamos los resultados en función de la tecnología utilizada para tratarlos, bien colimadores cilíndricos o bien micromutilámin…
PECULIARE EVOLUZIONE DELLA SEMEIOTICA NEURORADIOLOGICA DI UN CASO DI MALATTIA DEMIELINIZZANTE CON LESIONI PSEUDOTUMORALI
2013
SCOPO DEL LAVORO Presentiamo un caso di una paziente di 24 anni che giunge alla nostra attenzione per la comparsa di disartria come quadro clinico d’esordio di una forma aggressiva di malattia demielinizzante di cui si valuta l’atipica evoluzione neuroradiologica delle lesioni pseudotumorali che la caratterizzano e le possibili diagnosi differenziali. MATERIALI E METODI La paziente dopo una prima valutazione in PS è stata sottoposta a TC encefalo, ricoverata presso l’U.O. di Neurologia, sottoposta a controlli RM seriati (anche con tecniche avanzate); durante la degenza è stata inoltre effettuata una biopsia stereotassica. RISULTATI La TC ha rilevato almeno tre lesioni ipodense: a sinistra…
CARATTERISTICHE NEURORADIOLOGICHE DI UN CASO DI SCLEROSI TUBEROSA DIAGNOSTICATO IN ETÀ ADULTA
2013
SCOPO DEL LAVORO: presentiamo un caso di Sclerosi Tuberosa (Tuberous sclerosis complex, TSC; anche nota come Sindrome di Bourneville-Pringle) diagnosticato tardivamente grazie al sospetto posto dalle indagini neuroradiologiche eseguite in una paziente di 40 anni con in anamnesi ritardo mentale, crisi epilettiche e disturbi del visus.MATERIALI E METODI: la paziente si presenza alla nostra attenzione per un episodio di disorientamento e confusione mentale; dopo una prima valutazione in PS veniva eseguita una TC dell’encefalo in tecnica sequenziale (Siemens SOMATON AS+, 128 strati) e trasferita presso l’U.O.C. di Neurologia. In seguito, per una migliore caratterizzazione dei reperti descritti …
Trattamento sclerotizzante retrogrado percutaneo del varicocele e risultati sui parametri seminali e sulla fertilità.
2006
Comunicazione orale per XIII Congresso Nazionale della Società Italiana di Andrologia. Milano, 26-29 settembre 2006
Inclusive Decision-making and Campaign: The Participation of Second Generation Migrants for Preventing Radicalization
2019
This paper deals with the analysis of the first results of Oltre project (ISF - DG Migration and Home Affairs, EU) funding for preventing the radicalization of the second-generation of migrants. The non-standard field research was intertwined with online social network profiles investigation. We present the off-line research results. Starting from the different dimensions of the risk of radicalization proposed by the kaleidoscopic overview of risk factors (Sieckelinck and Gielen 2018: 5; Ranstorp 2016), we created a topic guide for the indepth qualitative interviews collecting 42 interviews of 2G youths (18-30 years) in 7 Italian towns, interviewing also several privileged testimonies. Then…
Vecākā pirmsskolas vecuma bērnu radošuma sekmēšana vizuālajā mākslā.
2021
Darba nosaukums: Vecākā pirmsskolas vecuma bērnu radošuma sekmēšana vizuālajā mākslā. Darba autors: Agija Bērziņa. Darba vadītājs: Dr.paed., Mg.art. Ilze Briška Darba mērķis: izzināt un pārbaudīt 5-6 gadīgu bērnu radošuma veicināšanas iespējas vizuālajā mākslā. Darbs sastāv no divām daļām- teorētiskās un empīriskās. Darba teorētiskajā daļā tiek apkopotas un analizētas pedagoģiskās un psiholoģiskās atziņas par radošumu, tā sekmēšanu vizuālajā mākslā. Empīriskajā daļā aprakstīta pētnieciski praktisko darbību (novērošanu, praktisko izmēģinājuma darbību), par pamatu ņemot teorētiskajā daļā gūtās atziņas, dažādu autoru ieteikumus, kā arī apraksta pētījumā iegūtos rezultātus. Darbs sastāv no 61 l…
Temporal control of xyloglucan self-assembly by radiation-induced degradation
2016
Xyloglucan is a natural polysaccharide present as storage material in seeds and structural materials in the primary cells walls of higher plants. Xyloglucan from tamarind seed is composed of B(1,4)-D-glucan backbone, partially substituted by a-(1,6)-linked xylose units, some of which are B-D-galactosylated at O-2. In its native form the polymer is water-soluble and forms gel in the presence of moderate amounts of alcohols. When a given fraction of galactosyl residues are removed, the polymer acquires the ability to form gels in aqueous solution at physiological temperatures, a property of great interest for biomedical/pharmaceutical applications. Gelation on increasing temperature can be as…
Wpływ rozkładu widma promieniowania słonecznego na parametry multikrystalicznego ogniwa krzemowego
2014
W artykule opisano wyniki uzyskane z opracowanej aplikacji integrującej model rozkładu widma promieniowania słonecznego oraz model krzemowego monokrystalicznego ogniwa fotowoltaicznego. W ramach badań opracowano program - symulator widma promieniowania słonecznego wykorzystujący algorytmy i procedury numeryczne oparte na modelu SMARTS2. Ponadto, przygotowano aplikację pozwalającą na przeprowadzenie modelowania komputerowego zachowania się ogniw i analizę zmienności ich parametrów przy zastosowaniu różnych rozkładów spektralnych oświetlenia oraz różnych parametrów materiałowo-konstrukcyjnych ogniw PV. Z wykorzystaniem niniejszej aplikacji przeprowadzono szereg symulacji. Dokonano analizy zal…
Gaussian processes retrieval of crop traits in Google Earth Engine based on Sentinel-2 top-of-atmosphere data.
2022
The unprecedented availability of optical satellite data in cloud-based computing platforms, such as Google Earth Engine (GEE), opens new possibilities to develop crop trait retrieval models from the local to the planetary scale. Hybrid retrieval models are of interest to run in these platforms as they combine the advantages of physically-based radiative transfer models (RTM) with the flexibility of machine learning regression algorithms. Previous research with GEE primarily relied on processing bottom-of-atmosphere (BOA) reflectance data, which requires atmospheric correction. In the present study, we implemented hybrid models directly into GEE for processing Sentinel-2 (S2) Level-1C (L1C)…
Deep-learning based reconstruction of the shower maximum X max using the water-Cherenkov detectors of the Pierre Auger Observatory
2021
The atmospheric depth of the air shower maximum $X_{\mathrm{max}}$ is an observable commonly used for the determination of the nuclear mass composition of ultra-high energy cosmic rays. Direct measurements of $X_{\mathrm{max}}$ are performed using observations of the longitudinal shower development with fluorescence telescopes. At the same time, several methods have been proposed for an indirect estimation of $X_{\mathrm{max}}$ from the characteristics of the shower particles registered with surface detector arrays. In this paper, we present a deep neural network (DNN) for the estimation of $X_{\mathrm{max}}$. The reconstruction relies on the signals induced by shower particles in the groun…