Search results for "centre"

Active Media for Optical Data Processing

2002

Peculiarities of colour centre production and their recombination in photostimulated processes in doped alkali halide systems were examined in connection with their practical use as active photostimulable media in miniaturised optoelectronic and photonic devices. The specific interaction of unrelaxed H-centres and electrons with the dopants in different valence and electronic states open a way for widening the scope of multifunctional (logical and mathematical) optical data processing, including the optical chips.

Effect of mixing time on reclaimed asphalt mixtures: An investigation by means of imaging techniques

2015

This paper presents an application of imaging techniques to investigate the distribution of reclaimed asphalt and air voids within gyratory compacted specimen. Stone Mastic Asphalt specimens containing reclaimed asphalt, were produced at five different laboratories participating in the collaborative project Re-Road: University of Nottingham, Belgium Road Research Centre, Danish Road Directorate, TU Braunschweig and Laboratoire Centrale de Ponts et Chaussees (now IFSTTAR). This study applies the X-ray Computed Tomography and Optical Microscopy techniques to view the internal structure of the specimen with particular focus on the air voids and reclaimed asphalt distributions within the specim…

The "PC-WIRED" study: Patient Centred Evolution of Websites of Italian Radiotherapy Departments.

2021

Abstract Objectives The aim of this paper was to conduct a survey about the evolution of the information provided by Italian radiotherapy departments with a special focus on patients’ perspective. Methods A two-steps analysis was conducted in 2013 and 2020. Starting from analysis of data for the existing websites of Italian radiotherapy departments, main potential areas of interest for patients were discussed within a dedicated multidisciplinary team composed of radiation oncologists, a web designer, a blogger, a psyco-oncologist, a volunteer and a representative of patients’ association. Results Six patient-oriented features to evaluate the websites of Italian radiotherapy departments were…

A Culturally Sensitive Approach to Promoting Initial Literacy Development in Africa : Ongoing and Planned Research and Development at the University …

2017

A four-year research and development program at CAPOLSA (the Centre for the Promotion of Literacy in Sub-Saharan Africa) was inspired by widespread dissatisfaction with poor literacy outcomes of mass basic schooling in Zambia and sought to test the generalizability of a scientifically grounded, computer-mediated instructional resource developed in Finland, for effective intervention in an African society where different linguistic and educational conditions obtain. Specific challenges and opportunities posed by the local sociocultural context included the prevalence of multilingualism, the relatively transparent orthographies of local languages, and poor infrastructure of the public school …

HAPEX-Sahel

1997

The variation in evaporative fraction and actual evaporation is examined for three sample days in the HAPEX-Sahel Intensive Observation Period (IOP), including data from all the vegetation types and sites. The trends in evaporative fraction over the IOP are also presented for eight sites. The high rate of evaporation from bare soil in the days following rainfall produces a variability in evaporation which makes differences between sites difficult to interpret on a day-to-day basis, but over the whole IOP it is shown that the millet uses a smaller proportion of the available energy for evaporation than the tiger bush or fallow savannah. The combined effect of differences in the total energy …

Instrumentation of the Do 128 D-IBUF for Airborne Measurements at Different Campaigns of the Collaborative Research Centre

2007

L’incriminazione dello smuggling of migrants in Europa: una ricognizione comparatistica

2019

Il lavoro opera una ricognizione comparatistica di varie discipline del migrant smuggling: internazionale (Protocollo ONU), sovranazionale (UE Facilitation package) e nazionali (Italia, Portogallo, Spagna, Germania), a partire dai dati raccolti nel corso della ricerca "The New Era of Smuggling in the Mediterranean Sea" (2017-19), finanziata da PMI

Detecting global and local hippocampal shape changes in Alzheimer's disease using statistical shape models.

2012

Item does not contain fulltext The hippocampus is affected at an early stage in the development of Alzheimer's disease (AD). With the use of structural magnetic resonance (MR) imaging, we can investigate the effect of AD on the morphology of the hippocampus. The hippocampal shape variations among a population can be usually described using statistical shape models (SSMs). Conventional SSMs model the modes of variations among the population via principal component analysis (PCA). Although these modes are representative of variations within the training data, they are not necessarily discriminative on labeled data or relevant to the differences between the subpopulations. We use the shape des…

A human post-mortem brain model for the standardization of multi-centre MRI studies

2015

Multi-centre MRI studies of the brain are essential for enrolling large and diverse patient cohorts, as required for the investigation of heterogeneous neurological and psychiatric diseases. However, the multi-site comparison of standard MRI data sets that are weighted with respect to tissue parameters such as the relaxation times (T1, T2) and proton density (PD) may be problematic, as signal intensities and image contrasts depend on site-specific details such as the sequences used, imaging parameters, and sensitivity profiles of the radiofrequency (RF) coils. Water or gel phantoms are frequently used for long-term and/or inter-site quality assessment. However, these phantoms hardly mimic t…

La céramique médiévale et moderne du bassin de la Loire moyenne, chrono-typologie et transformation des aires culturelles dans la longue durée (6e—19…

2022

La présente publication, en accès libre sur Huma-Num, résulte d’un Projet Collectif de Recherche (PCR) sur la céramique médiévale et moderne du bassin de la Loire moyenne qui s’inscrit dans la longue durée, puisqu’il a commencé en 1996 et a déjà fait l’objet de deux suppléments à la RACF (Husi 2003 dir. https://www.persee.fr/issue/sracf_1159-7151_2003_ant1 et Husi 2013 dir. https://journals.openedition.org/racf/1860).Cette publication a comme objectif d’appréhender : (i) la question de la chronologie à partir d’une démarche archéo-statistique originale ; (ii) les questions économiques sociales et culturelles notamment liées aux traditions de fabrication, aux flux et aux échanges de récipien…