Search results for "ADAR"
showing 10 items of 781 documents
Geophysical investigations at the Himera archaeological site, northern Sicily
2007
In this paper we present a geophysical survey that was carried out as a research activity during field trips to the Himera archaeological site, where relics of a large Greek settlement are still buried, effected by a joint group of archaeologists and geophysicists during an educational project. Two-dimensional (2D) resistivity and ground-penetrating radar (GPR) surveys were performed to locate buried archaeological structures at this archaeological site. The results of the GPR surveys show some anomalies characterized by semi-hyperbolic shapes. In some restricted areas of the town, two grids of parallel GPR profiles were acquired while time- and depth-slices were calculated to identify the …
Geophysical and geotechnical investigations to support the restoration project of the Roman ‘Villa del Casale’, Piazza Armerina, Sicily, Italy
2011
A multidisciplinary geophysical and geotechnical study, including some non-invasive geophysical applications, was carried out during the restoration of the ‘Villa del Casale’, a Roman villa discovered near Piazza Armerina (Sicily, Italy) in 1929, famous for its Roman floor mosaics. The project aims were to characterize the geology of the subsoil and provide information for solving the main building structural problems including the subsidence of some parts of the floor and the detachment of the tesserae (i.e., the tiles) of the mosaics. Another goal was the detailed study of the underground structures of the Corridor of the Great Hunt, a part of the villa strongly affected by subsidence and…
Estimating the phenological dynamics of irrigated rice leaf area index using the combination of PROSAIL and Gaussian Process Regression
2021
The growth of rice is a sequence of three different phenological phases. This sequence of change in rice phenology implies that the condition of the plant during the vegetative phase relates directly to the health of leaves functioning during the reproductive and ripening phases. As such, accurate monitoring is important towards understanding rice growth dynamics. Leaf Area Index (LAI) is an important indicator of rice yields and the availability of this information during key phenological phases can support more informed farming decisions. Satellite remote sensing has been adopted as a proxy to field measurements of LAI and with the launch of freely available high resolution Satellite imag…
Monitoring peatland water table depth with optical and radar satellite imagery
2022
Peatland water table depth (WTD) and wetness have widely been monitored with optical and synthetic aperture radar (SAR) remote sensing but there is a lack of studies that have used multi-sensor data, i.e., combination of optical and SAR data. We assessed how well WTD can be monitored with remote sensing data, whether multi-sensor approach boosts explanatory capacity and whether there are differences in regression performance between data and peatland types. Our data consisted of continuous multiannual WTD data from altogether 50 restored and undrained Finnish peatlands, and optical (Landsat 5–8, Sentinel-2) and Sentinel-1 C-band SAR data processed in Google Earth Engine. We calculated rando…
CALYPSO, a permanent and operational network of High-Frequency radar observing systems for real-time monitoring of surface currents in the Malta-Sici…
2014
Illegal migration often results in dramatic loss of lives that can be avoided with timely Search and Rescue (SAR) interventions; such SAR services require accurate information such as on sea-state and operational tools such as trajectory forecasting for floating objects at sea. The maritime transport of oil crossing this region accounts for 25% of the global maritime traffic and for nearly 7% of the world oil accidents over the last 25 years. In combination with localized oil extraction plants existing in the shelf zones this situation presents a serious threat to both the open-sea and coastal-zone habitats, with consequent impacts on local economic activities as tourism and fisheries, impa…
Māsas un pacienta sadarbības hroniskas obstraktīvas plaušu slimības gadījumā
2021
Bakalaura darba tēma ir “Māsas un pacienta sadarbības hroniski obstraktīvas plaušu slimības gadījumā”. Bakalaura darba aktualitāti nosaka, sabiedrības un īpaši pacientu ar jau esošo HOPS, nepietiekošās zināšanas par HOPS, kā rezultātā slimība netiek laicīgi diagnosticēta. Darba autore pēta un analizē, HOPS slimības ietekmi uz pacienta emocionālo un fizisko veselību, māsas sadarbību ar HOPS pacientiem, profilaksi un ārstēšanu, lai, vajadzības gadījumā, māsa varētu sniegt informatīvu atbalstu pacientiem izglītošanas nolūkā. Darba mērķis ir noskaidrot māsas un pacienta sadarbību HOPS gadījumā. Pētniecības jautājums: kāda ir māsas un pacienta sadarbība HOPS gadījumā? Izmantotā pētīju metode: kv…
Effects of BRCA2 cis-regulation in normal breast and cancer risk amongst BRCA2 mutation carriers
2012
Introduction: Cis-acting regulatory single nucleotide polymorphisms (SNPs) at specific loci may modulate penetrance of germline mutations at the same loci by introducing different levels of expression of the wild-type allele. We have previously reported that BRCA2 shows differential allelic expression and we hypothesize that the known variable penetrance of BRCA2 mutations might be associated with this mechanism. Methods: We combined haplotype analysis and differential allelic expression of BRCA2 in breast tissue to identify expression haplotypes and candidate cis-regulatory variants. These candidate variants underwent selection based on in silico predictions for regulatory potential and di…
Classifying Major Explosions and Paroxysms at Stromboli Volcano (Italy) from Space
2021
Stromboli volcano has a persistent activity that is almost exclusively explosive. Predominated by low intensity events, this activity is occasionally interspersed with more powerful episodes, known as major explosions and paroxysms, which represent the main hazards for the inhabitants of the island. Here, we propose a machine learning approach to distinguish between paroxysms and major explosions by using satellite-derived measurements. We investigated the high energy explosive events occurring in the period January 2018–April 2021. Three distinguishing features are taken into account, namely (i) the temporal variations of surface temperature over the summit area, (ii) the magnitude of the …
Georadar Investigations in the Church of San Paolo (San Giacomo Dei Militari, Palermo).
2021
Summary As part of a research project aimed at drawing up a restoration project for the church of San Paolo, the monument was investigated with georadar surveys. The investigations were followed in a targeted manner by archaeological excavations, under the supervision of the Superintendence of Cultural and Environmental Heritage of Palermo. The San Paolo church is located in the oldest part of the city. The geophysical investigations will be useful to identify any pre-existing structures on which the church could be founded. The georadar investigations focused on the central nave and one of the side aisles to identify buried structures and crypts. The data showed several anomalies. One of t…
Informācijas un komunikācijas tehnoloģiju izmantošana pirmsskolas pedagoga un bērnu vecāku sadarbībā
2022
Kvalifikācijas darba pētījums “Informācijas un komunikācijas tehnoloģiju izmantošana pirmsskolas pedagoga un bērnu vecāku sadarbībā” izstrādāts, lai atrastu sadarbības veidus, kuri atbilst mūsdienu sabiedrības, jaunajām mācību prasībām un dzīves situācijām. Teorētiskajā pētījumā ir izmantotas literatūras un normatīvo aktu analizēšanas metodes, bet praktiskajā pētījumā – aptaujas anketas metode un pirmsskolas pedagogu aptaujas anketu datu statistiskā, kvalitatīva analīzē. Pētījuma rezultātā ir aprakstītas IKT izmantošanas iespējas, izaicinājumi pirmsskolas pedagoga un bērnu vecāku sadarbībā un pedagogiem nepieciešamā IKT kompetence. Informācija būs noderīga pirmsskolas izglītības iestādēm, p…