125,189 research outputs found
Seismic stratigraphy and marine magnetics of the Naples Bay (Southern Tyrrhenian sea, Italy): the onset of new technologies in marine data acquisition, processing and interpretation
No full textSeismic stratigraphy and marine magnetics in the case histories of the Somma-Vesuvius volcanic complex, Phlegrean Fields offshore and Ischia and Procida islands offshore (Naples Bay, Southern Tyrrhenian sea) are here discussed. Detailed geo-volcanologic setting of these areas is presented to give a better framework of the presented data. Seismo-stratigraphic techniques and methodologies are discussed, focussing, in particular, on the Naples area, where the Quaternary volcanic activity prevented the application of classical stratigraphic concepts, due to the occurrence of interlayered sedimentary sequences and intervening volcanic bodies (volcanites and volcaniclastites). The onset of new technologies in marine data acquisition, processing and interpretation is also discussed taking into account some historical aspects
[Psychologic implications in loco-regional anesthesia]. FT Implicazioni psicologiche in anestesia loco-regionale.
No full textNeurolesive procedures in the treatment of malignant bone pain: vertebral pain relief by unilateral percutaneous cervical cordotomy.
No full textAbstract
Unilateral percutaneous cervical cordotomy, performed in humans to relieve intractable cancer pain, elicits signs of ipsilateral sympathetic block. The primary somatosensory cortex (S1) in adult animals and humans is capable of rapid modification after deafferentation. These plastic changes may account for a loss of tonic control by nociceptive inputs over inhibitory mechanisms within structures of the dorsal column-medial lemniscal system. Most studies, however, have been performed under conditions where deafferentation of C and A delta fibres coexists with large-diameter fibres deafferentation. In this study the effect of the acute lesion of one ascending anterior lateral column on neuronal activity within the dorsal column-medial lemniscal system was assessed
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Il Cancro del Retto: Terapia del Dolore nella Recidiva
No full textThe fight against cancer cannot only be based on survival, recurrence rate and other oncological endpoints. Patients are also asking for a decent quality of life. Rectal cancer is probably a paradigmatic example: Its treatment is often associated with the loss or severe impairment of faecal function, alteration of body anatomy, urogenital problems and, sometimes, intractable pain
The opening of the natural harbour of Ischia (Italy)
No full textWe examine recent and historical sources with a view to
reconstructing the circumstances leading in 1854 to the opening
of the natural harbour of Ischia, the execution phases of the works
and the morphological changes arising. Since the late 17th
century Ischia, an active volcanic island, has been a major
European destination for spa treatment. It underwent a period of
change after the harbour was opened up, which represented not
only an outlet towards the mainland but also an important factor
of social and cultural aggregation for the island. Our analysis also
accounts of the geology of Ischia Harbour, the observations of the
current state of the island and issues concerning the increase in
volcanic and seismic risk resulting from urban expansion and the
increase in tourism since the first half of the 20th century.PublishedPisa3.5. Geologia e storia dei vulcani ed evoluzione dei magmi3.10. Storia ed archeologia applicate alle Scienze della Terraope
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
The opening of the natural harbour of Ischia (Italy)
No full textWe examine recent and historical sources with a view to
reconstructing the circumstances leading in 1854 to the opening
of the natural harbour of Ischia, the execution phases of the works
and the morphological changes arising. Since the late 17th
century Ischia, an active volcanic island, has been a major
European destination for spa treatment. It underwent a period of
change after the harbour was opened up, which represented not
only an outlet towards the mainland but also an important factor
of social and cultural aggregation for the island. Our analysis also
accounts of the geology of Ischia Harbour, the observations of the
current state of the island and issues concerning the increase in
volcanic and seismic risk resulting from urban expansion and the
increase in tourism since the first half of the 20th century.PublishedPisa3.5. Geologia e storia dei vulcani ed evoluzione dei magmi3.10. Storia ed archeologia applicate alle Scienze della Terraope
The Seismicity of Ischia Island
No full textIschia is a volcanic island, west of the caldera of Campi Flegrei, southern Italy. Since the deployment of a modern seismic network in 1970, until the 21 August 2017 earthquake, the seismicity of Ischia has been characterized by low-magnitude (Md ≤ 2:3) earthquakes located in the northern part of the island, mostly beneath the town of Casamicciola Terme at very shallow depths (∼500 m). Some of these events seem to have occurred on the same seismogenetic structure in the northern part of the island. This area coincides with that where the devastating events of 1881 and 1883 occurred and where the small-magnitude seismicity recorded between 1927 and 1936 was located. The August 2017 seismic sequence affected the same area. The current network configuration is able to locate shallow events with Md ≥ 1:0 and to detect smaller earthquakes or other types of natural and artificial events (e.g., blast fishing, geothermal well explosions; see The Seismic Network section). Here, we present the catalog of earthquakes recorded on Ischia between 1999 and February 2018 and compare the August 2017 seismic sequence with the background seismicity. Furthermore, we identified a sequence of events possibly linked to the explosion of a geothermal well on the island.This work benefited of the project “Sale operative integrate e reti di monitoraggio
del futuro: l’INGV 2.0,” Fondo integrativo speciale per la ricerca (FISR) anni 2016 e 2017 (Delibera n. 78/2017).
Furthermore, this work benefited of the agreement between Istituto Nazionale di Geofisica e Vulcanologia and Italian Department of Civil Protection (DPC).Published1750-17606V. Pericolosità vulcanica e contributi alla stima del rischioJCR Journa
Chemical lumbar sympathectomy in occlusive arterial disease of the lower limbs
No full textThis paper present chemical lumbar sympathectomy in the treatment of occlusive arterial disease of the lower limb
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