Entity

Time filter

Source Type


Corvalan J.,Our Lady of the Assumption Catholic University
ARQ | Year: 2010

The reuse of materials acts as the generator of this home remodel in a traditional zone of Asuncion. The interior walls or masonry and concrete are saved and pallets are used to generate a vault that unites the parts. Source


Franco C.,Wayne State University | Yoo W.,Translational Research and Clinical Epidemiology | Franco D.,Our Lady of the Assumption Catholic University
Bulletin of the NYU Hospital for Joint Diseases | Year: 2010

Lupus nephritis is one of the most serious manifestations of systemic lupus erythematosus (SLE). African Americans generally have a more severe presentation and more often progress to end stage renal disease (ESRD) than Caucasians. Several studies point to higher creatinine, low complement levels, thrombocytopenia, anemia, hypertension, and proliferative glomerulonephritis as predictors of ESRD in lupus nephritis within multi-ethnic cohorts. The purpose of the current study was to correlate clinical, serological, and immunological variables with the development of ESRD requiring dialysis in the African American population. Materials and Methods: A small retrospective study was performed with African American patients who had been diagnosed with lupus nephritis and biopsied between 1996 and 2006. Clinical, serological, and immunological variables were investigated. Chi square, t-test, ANOVA, and univariate and multivariable logistic regression models were applied to identify predictors of adverse outcome (ESRD requiring dialysis) in 67 patients with lupus nephritis. Subgroup analyses were performed in some cases to evaluate differences among the different classes. Results: Renal function was more depressed in the proliferative forms of lupus nephritis. Erythrocyte sedimentation rate (ESR) was increased mostly in classes III, IV, and V. Complement levels were uniformly decreased in the population studied. Nonetheless, C4 was more significantly depressed in the proliferative forms of lupus nephritis. We found that higher creatinine values (defined as creatinine greater than 1.2), low glomerular filtration rate (GFR) defined as GFR less than 60 mL/min/1.73 m2), class IV lupus nephritis, and hypertension are associated with ESRD in this population. On the other hand, class V lupus nephritis patients had significantly less risk to progress to ESRD (p values < 0.05). On subgroup analysis, neither low C3 nor low C4 levels were associated with ESRD requiring dialysis. Conclusion: As previously noted in other studies, hypertension, higher creatinine, proliferative nephritis, and decreased GFR are associated with ESRD requiring dialysis. Source


Cernuzzi L.,Our Lady of the Assumption Catholic University
IT Professional | Year: 2014

Praguay, with its population of approximately 6.8 million, has one of the lowest gross domestic products (GDP) per capita of Latin America. The central government has put IT on its policy agendas. The goal has been to introduce IT-based solutions to improve public administration processes; deliver quality public services; and improve transparency, citizen participation, and accountability. Academia is also supporting IT growth. Currently, 34 universities offer 46 computer science programs and a few professional-oriented master's programs in IT. There are also some promising research groups. However, in the absence of an effective national quality-control system, the quality of university programs varies. The o-government philosophy fosters a more horizontal and democratic way of governing, which benefits citizen participation, promotes transparency and strengthens technology with the aim of improving the quality of public services. The key components to any o-government initiative are transparency, participation and collaboration, and accountability. Source


Andrews P.,University of Sao Paulo | Pane J.,University of Trento | Pane J.,Our Lady of the Assumption Catholic University
Artificial Intelligence Review | Year: 2013

Folksonomies, often known as tagging systems, such as the ones used on the popular Delicious or Flickr websites, use a very simple Knowledge Organisation System. Users have thus been quick to adopt this system and create extensive annotations on the Web. However, because of the simplicity of the folksonomy model, the semantics of the tags used is not explicit and can only be inferred from their context of use. This is a barrier for the automatic use of such Knowledge Organisation Systems by computers and new techniques have been developed to extract the semantic of the tags. In this article we discuss the drawbacks of some of these approaches and propose a generalization of the different approaches to detect new senses of terms in a folksonomy. Another weak point of the current state of the art in the field is the lack of formal evaluation methodology; we thus propose a novel evaluation framework. We introduce a dataset and evaluation methodology that enable the comparison of results between different approaches to sense induction in folksonomies. Finally we discuss the performances of different approaches to the task of homonymous/polysemous tag detection and synonymous identification. © 2012 Springer Science+Business Media Dordrecht. Source


Cernuzzi L.,Our Lady of the Assumption Catholic University | Molesini A.,University of Bologna | Omicini A.,University of Bologna | Zambonelli F.,University of Modena and Reggio Emilia
International Journal of Software Engineering and Knowledge Engineering | Year: 2011

Changes and adaptations are always necessary after the deployment of a multi-agent system (MAS), as well as of any other type of software systems. Some of these changes may be simply perfective and have local impact only. However, adaptive changes to meet new situations in the operational environment of the MAS may impact globally on the overall design. More specifically, those changes usually affect the organizational structure of the MAS. In this paper we analyze the issue of design change/adaptation in a MAS organization, and the specific problem of how to properly model/design a MAS so as to make it ready for adaptation. Special attention is paid to the Gaia methodology, whose suitability in dealing with adaptable MAS organizations is also discussed with the help of an illustrative application example. © 2011 World Scientific Publishing Company. Source

Discover hidden collaborations