1,721,146 research outputs found
Analyses of roman wall paintings, Basilica of Santa Maria Maggiore, Trient
No full textThis study aims to a chemical and physical characterization of the numerous fragments of roman
wall paintings found during the archaeological investigation in Basilica of Santa Maria
Maggiore, Trento.
The objective was to identified the Roman buildings present in this area, probably the Public
Thermae, built in First Century a.C., through the archaeometrical identification of pigments and
painting techniques used to decorate them.
The main analytical techniques used to determinate the composition of the samples were Fourier
Transform infrared spectroscopy (FT-IR), Raman microscopy and X-ray Fluorescence (XRF)
Popliteal artery injuries associated with knee dislocation. (Three cases treated with successful outcome)
No full textKnee dislocation is an uncommon lesion. It is, however, frequently associated with injury to surrounding structures. The possible coexistence of trauma of the popliteal artery is a serious threat to the limb's integrity. Its incidence is high (about one third of cases) and, unless speedily discovered and treated, it leads to limb loss. Three cases of knee dislocation with combined injury to the popliteal artery successfully underwent surgery. On the basis of such experience, the authors survey the questions of vascular reconstructive surgery that still remain open: in particular, the delay in diagnosis, when and if to use angiography, the type of vascular reconstruction, the maximum delay in revascularization
L'applicazione clinica del trapianto di polmone
No full textSuccessful lung transplantation has taken longer to develop than other organ transplants. Nevertheless, lung transplantation has now become a viable clinical option for the treatment of irreversibile end-stage respiratory failures. A brief history of lung transplantation is followed by a discussion of the current surgical indications for single and double lung transplants. The criteria for the evaluation and preoperative management of potential candidates are reported. The surgical techniques used for harvesting, preserving and transplanting one or both lungs are then described, including the latest procedure of sequential bilateral lung transplantation. Almost 300 patients have undergone single or double lung transplants all over the world with a survival rate of more than 60%, the earliest patients surviving for over six years. Lung function and exercise tolerance have satisfactorily improved. Despite a number of problems in airway anastomosis and in diagnosing and treating rejection still to be resolved, lung transplantation is rapidly gaining ground worldwide
Lung cancer in the young
No full textA long-term retrospective study was carried out on 1,514 cases of lung cancer to assess whether the disease presents substantial differences in young as compared to older patients. Clinical, epidemiologic, surgical, and survival data were evaluated in all cases. A young group under 45 years of age was studied separately and compared with the remaining older patients. In contrast with the literature, our results showed no percentage increase or variation in the male/female ratio of lung cancer in the young group. No significant difference was found regarding clinical picture, operability, histotype, and prognosis
Pseudoaneurismi femorali non infetti e trombosi tardiva di branca protesica. Tecnica Chirurgica
No full textGoing Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
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