A methodology for Response Gap Analysis in offshore oil spill emergency management.

In case of offshore oil spills, the success of emergency response largely depends on the meteorological and oceanographic conditions during and after the spill, which are expressed by a set of different environmental factors. A "gap" in the response may be caused by unfavourable environmental factors that could limit its effectiveness or even impede it. In this context, Response Gap Analysis (RGA) studies identify the environmental factors negatively influencing the emergency response in a given sea area and aim at assessing the percentage of time during which the response would be without success or impossible to deploy.

Testing and Modelling of Elastomeric Element for an Embedded Rail System.

Modelling of elastomeric elements of railway components, able to represent stiffness and damping characteristics in a wide frequency range, is fundamental for simulating the train-track dynamic interaction, covering issues such as rail deflection as well as transmitted forces and higher frequency phenomena such as short pitch corrugation. In this paper, a modified non-linear Zener model is adopted to represent the dependences of stiffness and damping of the rail fastening, made of elastomeric material, of a reference Embedded Rail System (ERS) on the static preload and frequency of its deformation. In order to obtain a reliable model, a proper laboratory test set-up is built, considering sensitivity and frequency response issues.

Comma sign of subscapularis tear: diagnostic performance and magnetic resonance imaging appearance.

Background: The main aim of this study was to evaluate the performance of magnetic resonance imaging (MRI) and interobserver agreement in the identification of the comma sign. The second objective was to look for a correlation between the comma sign and the detachment of the superficial fascia of the subscapularis.

Materials And Methods: Two radiologists, blinded to the arthroscopic findings, retrospectively assessed the magnetic resonance images of 110 shoulders and were asked to assess the presence of the comma sign and the intact subscapularis fascia.

Pleomorphic adenoma of parotid gland: delayed enhancement on computed tomography.

Objectives: To assess the efficacy of multiphasic CT with 8 min delayed acquisition in the differential diagnosis between pleomorphic adenomas and other parotid neoplasias.

Methods: Between January 2004 and April 2007, 62 patients with parotid enlargement were enrolled in this prospective study. The CT protocol applied included the following four acquisitions: without contrast medium and 30 s, 120 s and 8 min after intravenous injection of contrast medium.

[Sideropenic anemia and celiac disease].

Since the beginning of the use of Antigliadin Antibodies (AGA) in the screening of coeliac disease (CD) we have observed an increasing in the total number of cases diagnosed, in particular of the cases with monosymptomatic and atypical forms. Iron deficiency anemia is one of the more frequent findings that we can find in CD, either in association with other typical coeliac signs, or as an isolated expression of the disease. The first aim of our study was to determine the incidence of iron deficiency anemia in our patients affected by CD at the moment of diagnosis.