Search results for "DOA"
showing 10 items of 195 documents
L'esposizione professionale in ambiente sanitario: attuali dati sulla valutazione e prevenzione del rischio
2003
<p>L’indagine si riferisce agli incidenti occupazionali a rischio infettivo, occorsi tra il gennaio 1998 ed il dicembre 2002 negli operatori sanitari del Policlinico Universitario “Paolo Giaccone” di Palermo. Su una popolazione sanitaria di 2700 unità, sono stati denunciati negli anni considerati 742 incidenti a rischio infettivo occupazionale, con una frequenza del fenomeno infortunistico ad andamento decrescente negli anni considerati, da 173 del 1998 a 126 del 2002, con una più elevata prevalenza nel sesso femminile( 71.8%). Il maggior numero di eventi accidentali si è verificato nell’area chirurgica e gli infermieri assunti come personale “a tempo determinato” hanno una maggiore i…
Utilidad de la ecografía endoanal tridimensional para el manejo y el diagnóstico de las fístulas perianales
2014
Las fístulas perianales afectan alrededor de 10/100000 personas/años con un pico de incidencia entre la tercera y la quinta década de la vida. Las fístulas y los abscesos perianales representan estadios sucesivos de una misma enfermedad supurativa, siendo entre el 80-90% de origen criptoglandular. La clasificación de las fístulas perianales no siempre resulta sencilla. La más utilizada y conocida es la clasificación de Parks, la cual divide las fístulas en: interesfintéricas, transesfintéricas, supraesfintéricas y extraesfintéricas. Otras formas clásicas de clasificar las fístulas es en: simples y complejas (según la dificultad a la hora del manejo) o altas y bajas (según la altura a la que…
O dom entre História e Antropologia. Figuras medievais do doador
2003
RésuméL'ouverture bénéfique de l'histoire envers l'anthropologie, pose la question de l'usage par la médiévistique de modèles anthropologiques pas toujours opérants pour expliquer la société médiévale. Le problème étant particulièrement sensible en ce qui concerne le don aux établissements ecclésiastiques. Dans la perspective d'une compréhension générale de cette pratique sociale présente pendant tout le Moyen Âge, l'enquête sur la figure du donateur dans les inscriptions épigraphiques (VIe-XIIe s.) révèle des traits d'un système complexe d'enchaînements entre l'ici-bas et l'au-delà: inversion et déplacement de rôles, intermédiation, circulation et duplicité des biens et des acteurs. Abstra…
Le gemme gnostico-magiche
2008
studio tipologico, iconografico e stilistico sulle gemme gnostiche conservate al Museo Archeologico di Palermo "A. Salinas"
Measuring SO2 Emission Rates at Kīlauea Volcano, Hawaii, Using an Array of Upward-Looking UV Spectrometers, 2014–2017
2018
Retrieving accurate volcanic sulfur dioxide (SO2) gas emission rates is important for a variety of purposes. It is an indicator of shallow subsurface magma, and thus may signal impending eruption or unrest. SO2 emission rates are significant for accurately assessing climate impact, and providing context for assessing environmental, agricultural, and human health effects during volcanic eruptions. The U.S. Geological Survey Hawaiian Volcano Observatory uses an array of ten fixed, upward-looking ultraviolet spectrometer systems to measure SO2 emission rates at 10-s sample intervals from the Kīlauea summit. We present Kīlauea SO2 emission rates from the volcano’s summit and middle East Rift Zo…
Measurements of volcanic SO2 and CO2 fluxes by combined DOAS, Multi-GAS and FTIR observations: a case study from Turrialba and Telica volcanoes
2014
Over the past few decades, substantial progress has been made to overcome the technical difficulties of continuously measuring volcanic SO2 emissions. However, measurements of CO2 emissions still present many difficulties, partly due to the lack of instruments that can directly measure CO2 emissions and partly due to its strong atmospheric background. In order to overcome these difficulties, a commonly taken approach is to combine differential optical absorption spectroscopy (DOAS) by using NOVAC scan-DOAS instruments for continuous measurements of crateric SO2 emissions, and electrochemical/NDIR multi-component gas analyser system (multi-GAS) instruments for measuring CO2/SO2 ratios of exc…
Spectroscopic capture of 1 Hz volcanic SO2fluxes and integration with volcano geophysical data
2009
[1] Here we present a novel spectroscopic approach to capturing, with unprecedented time resolution and accuracy, volcanic SO2 fluxes. This is based on two USB2000 spectrometers, coupled to cylindrical lens telescopes, each collecting light which has transited horizontal sections of the rising plume. We report on field data from Stromboli volcano, in which the entire emission rate from the volcano was measured, as well as flux signatures associated with individual crater explosions. The latter were integrated with seismic and thermal data, demonstrating correlations in both cases, and representing the first such geophysical-geochemical data corroboration on this timescale. Such a holistic e…
El género <i>Lysaphidus</i> (Hymenoptera: Braconidae) en la Península Ibérica
1995
The genus Lysaphidus Smith, 1944 (Hymenoptera, Braconidae, Aphidiinae) is recorded for the first time from the Iberian Peninsula represented by two species: L. arvensis Stary, 1960, first record for the Iberian Peninsula, and L. santolinae n. sp., both of them parasitoids of Coloradoa Wilson,1910 genus (Homoptera, Aphididae). The mummies were collected on Santolina chamaecyparissus L. and Santolina rosmarinifolia L. (Asteraceae).
Scheda 356. Orecchino con perla.
2008
scheda scientifica di orecchino con perla da Agrigento, sec. III d. C., in Museo Archeologico di Palermo
scheda 344. Corniola incisa
2008
scheda scientifica di corniola incisa con dextrarum iunctio, sec. I-II d.C., conservata in Museo Archeologico di Palermo