151 research outputs found
UTILITA' DEL DOSAGGIO SERICO DELLA PROTEINA ACIDA IMMUNOSOPPRESSIVA E DEL CA125 IN PAZIENTI CON CARCINOMA DELL'OVAIO.
No full textQuality Contracts for Cooperative Services and Associated Resources
No full textProcess quality, as perceived by users, depends on both the service quality and on the quality of its delivered resources. This paper combines in a contract model the quality of the process and of the objects delivered through the process. The model is a tool for providers to formalize quality guarantees for their users. Besides contract modelling, the paper discusses basic methodological issues related to contract formulation. We also discuss a sample scenario to illustrate the proposed framework.</p
An XML-based agent model for supporting user activities on the Web
No full textIn this paper we present X-Compass, an XML-based agent model for supporting a user in his Web activities. X-Compass is the result of our attempt of synthesizing, in a unique context, important guidelines currently characterizing the research in various Computer Science sectors. Indeed, it constructs and handles a rather rich, even if light, user profile; this latter is exploited for supporting the user in an efficient search of information of his interest; in this way, it behaves as a content-based Recommender System. Moreover, it is particularly suited for constructing multi-agent systems and, therefore, for implementing collaborative filtering recommendation techniques. In addition, since it widely uses XML technology, it is particularly light and capable of operating on various hardware and software platforms. The adoption of XML also facilitates the information exchange among X-Compass agents and, consequently, makes the management and the exploitation of X-Compass based multi-agent systems easier.</p
X-Compass: an XML agent for supporting user navigation on the Web
No full textIn this paper we present X-Compass, an XML agent for supporting a user during her/his navigation on the Web. This agent is the result of our attempt of synthesizing, in a unique context, important guidelines currently characterizing the research in various Computer Science sectors. X-Compass constructs and handles a rather rich, even if light, user profile. This latter is, then, exploited for supporting the user in the efficient search of information of her/his interest; in this way, the proposed agent behaves as a content-based recommender system. Moreover, X-Compass is particularly suited for constructing multi-agent systems and, therefore, for implementing collaborative filtering recommendation techniques. In addition, being based on XML, X-Compass is particularly light and capable of operating on various hardware and software platforms. Finally, the exploitation of XML makes the information exchange among X-Compass agents and, therefore, the management and the exploitation of X-Compass multi-agent systems, easy.</p
Data set fromMazzaccaro D, Miri R, Derbel B, Modafferi A, Nano G. Hypogastric artery coverage during endovascular aneurysm repair in octogenarian and younger patients. J Cardiovasc Med (Hagerstown). 2019 Aug;20(8):557-563. doi: 10.2459/JCM.0000000000000799. PMID: 30950984.
No full textData set fromMazzaccaro D, Miri R, Derbel B, Modafferi A, Nano G. Hypogastric artery coverage during endovascular aneurysm repair in octogenarian and younger patients. J Cardiovasc Med (Hagerstown). 2019 Aug;20(8):557-563. doi: 10.2459/JCM.0000000000000799. PMID: 30950984.
This is the abstract:
Aim: To report our experience about hypogastric artery coverage during endovascular aneurysm repair (EVAR) for aortoiliac aneurysms in patients younger than 80 years (group A) compared with octogenarian patients (group B).
Methods: Data of consecutive EVAR with hypogastric artery coverage from 01/1998 to 12/2016 were retrospectively analyzed. Primary outcomes were the occurrence of ischemic colitis, type II endoleak and buttock claudication both at 30 days and in the long term. P values less than 0.05 were considered statistically significant.
Results: The hypogastric artery was covered in 107 patients. Twenty-three (21.5%) were octogenarian (group B). At 30 days, one type II endoleak occurred in group B, whereas 16 patients of group A experienced buttock claudication. There were no cases of ischemic colitis. During follow-up (median 63.5 months), no cases of ischemic colitis occurred. Six new type II endoleaks were recorded (five in group B and one in group A, P = 0.0001). Buttock claudication persisted in four patients of group A. No new cases of buttock claudication were observed.
Conclusion: Unilateral hypogastric artery coverage during EVAR for aortoiliac aneurysms can be performed with an acceptable rate of postoperative complication. Postoperative buttock claudication was more frequent in younger patients, whereas a type II endoleak occurred mostly in octogenarian patients during follow-up
Social isolation selectively reduces hippocampal brain-derived neurotrophic factor without altering plasma corticosterone
No full textIt is well known that housing conditions may alter several physiological and behavioral parameters. In this study, we have investigated whether a prolonged period of partial social isolation can modify central brain-derived neurotrophic (BDNF) concentrations. Male Sprague-Dawley rats were singly housed for 8 weeks before hippocampi, prefrontal cortices and striata were collected for BDNF determination. Compared to rats housed two per cage, isolated rats showed a significant reduction on BDNF protein concentrations in the hippocampus while no changes were observed in the other brain regions examined. Moreover, housing condition had no effect on basal plasma corticosterone. On the basis of the proposed etiological participation of reduced central BDNF concentrations in affective disorders, our results would candidate social isolation as a model for the study of antidepressant treatments
Partial Eversion Carotid Endarterectomy versus Conventional Techniques for Significant Carotid Stenosis
No full textBackground: To compare the outcomes of patients who were submitted to partial carotid endarterectomy (P-CEA) to those of patients who underwent standard conventional CEA with patch closure (C-CEA) and eversion CEA (E-CEA) for a significant carotid stenosis. Methods: Data of patients who consecutively underwent CEA from January 2014 to December 2018 for a significant carotid stenosis were retrospectively collected. Primary outcomes included mortality and the occurrence of neurologic and cardiologic complications, both at 30 days and during follow-up. Secondary outcomes included the occurrence of perioperative local complications (i.e. cranial nerve injuries, hematomas) and restenosis during follow-up. P values < 0.5 were considered statistically significant. Results: Three-hundred twenty-seven patients (241 males, 74%) underwent CEA for carotid stenosis (28.6% symptomatic). P-CEA was performed in 202 patients (61.8%), while C-CEA and E-CEA were performed in 103 and 22 cases respectively. At 30 days, neurologic complications were not significantly different among the 3 groups (2.8% in the group of C-CEA, 2.4% after P-CEA and 0% in E-CEA patients, P = 0.81), neither during follow-up. Perioperative local complications also were not significantly different among the 3 groups (P = 0.16). Conclusions: P-CEA had similar outcomes if compared to C-CEA and to E-CEA in terms of perioperative mortality, occurrence of neurologic and cardiologic complications, and occurrence of local complications. Also, in the long-term, P-CEA, C-CEA, and E-CEA were burdened by similar rates of mortality, neurologic, and cardiologic complications and restenosis
Real-time crisis mapping of natural disasters using social media
No full textThe proposed social media crisis mapping platform for natural disasters uses locations from gazetteer, street map, and volunteered geographic information (VGI) sources for areas at risk of disaster and matches them to geoparsed real-time tweet data streams. The authors use statistical analysis to generate real-time crisis maps. Geoparsing results are benchmarked against existing published work and evaluated across multilingual datasets. Two case studies compare five-day tweet crisis maps to official post-event impact assessment from the US National Geospatial Agency (NGA), compiled from verified satellite and aerial imagery sources
Anatomic patterns of the supra-aortic vessels from the aortic arch in the era of total endovascular arch repair
No full textAIM To characterize the anatomic pattern of the aortic arch and the supra-aortic trunks (SAT: brachio-cephalic trunk, BCT; left common carotid artery, LCCA; left subclavian artery, LSA) in terms of mutual distances starting from the aortic valve (AV), clockface orientation from the sagittal aortic axis and aortic diameters.
METHODS Measurements of Computed Tomography Angiograms (CTAs) in three groups of patients (without any pathology of the aortic arch, group A; with dilatation of the aortic arch, B; with dilatation of the descending thoracic aorta below the LSA, C) were retrospectively collected and analyzed.
RESULTS A total of 230 CTAs were analyzed (80 in group A, 71 in B, 79 in C). Significant differences were recorded among the three groups in terms of mutual distances (being AV-BCT and BCT-LCCA significantly lower in patients of group A if compared to both group B and C, both P<.0001) and take-off angles (being BCT the lowest in group A and LCCA the lowest in group C). In group A, all SAT mutual distances showed a positive correlation with increasing aortic diameters. In group B and C, both the distances VAP-BCT and BCT-LCCA showed a positive correlation with increasing aortic diameters (R=0.22 and 0.24 respectively for group B; R=0.46 and 0.38 respectively for group C). In group B, the take-off angles of both LCCA and LSA showed a negative correlation with increasing aortic diameters (R= -0.26 and -0.23 respectively).
CONCLUSION The anatomic pattern of the aortic arch and the SAT varied significantly among the three groups
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