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Search Results: 1 - 10 of 5242 matches for " Mauro Feola "
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Correlation between delayed-enhancement magnetic resonance and nitrate myocardial Tc-99m tetrofosmin scintigraphy in myocardial infarction: a case report
Mauro Feola, Gian Rosso, Alberto Biggi, Stephane Chauvie, Giovanni Leonardi, Franca Margaria, Maurizio Grosso, Valeria Ferrero
Journal of Medical Case Reports , 2007, DOI: 10.1186/1752-1947-1-120
Abstract: We describe a case of a 71-year-old man admitted for ischemic-like chest pain in which DE-MRI and post-nitrate 99mTc-tetrofosmin myocardial scintigraphy equally contributed to the diagnosis of previous lateral myocardial infarction.In this patient with coronary artery disease, the absence of uptake of tracer at myocardial scintigraphy appeared to be closely correlated to DE-MRI data. Cardiologists can use SPECT or DE-MRI to obtain similar information about myocardial viability.Delayed-enhancement magnetic resonance imaging (DE-MRI) is a highly accurate method for the non-invasive estimation of infarct size and location in acute or chronic myocardial infarction [1-3]. Cardiac MRI can also be used to detect the chronic consequence of myocardial infarction using its high degree of image definition [4]. It has recently been proposed as an alternative tool for the assessment of myocardial necrosis. Diagnostic methods for assessing myocardial viability, such as positron-emission tomography, single-photon-emission computed tomography (SPECT) and dobutamine echocardiography all have demonstrated limits in identifying the transmural extension of necrosis and/or viability of the ventricular wall [5-7].Previous studies [1,8,9] have documented the comparable efficacy of myocardial SPECT (using either thallium 201 or 99mTc-tetrofosmin) and DE-MRI in the evaluation of the presence, location, and transmural extension of myocardial necrosis. Furthermore, DE-MRI is a diagnostic method that is characterized by superior spatial resolution and the absence of ionizing radiation.In this case report we describe the case of a man with a previous lateral myocardial infarction, in which MRI showed a DE in the lateral wall according to the result of post-nitrate 99mTc-tetrofosmin imaging.A 71-year-old man was admitted for ischemic-like chest pain occurring 10 days prior to the hospital admission. The ECG showed ST-T segment elevation without a q wave in the infero-lateral leads (figure 1) tha
Rela es textuais geradas pelo operador argumentativo mas em textos de teor opinativo = Textual relations generated by the argumentative operator “but” in opinion texts
Aparecida Feola Sella
Acta Scientiarum : Human and Social Sciences , 2006,
Abstract: Este artigo apresenta resultados de uma pesquisa sobre o uso da conjun o mas, tomando-se como base estudos realizados por Ducrot (1984) e Schiffrin (1987). Consideram-se as rela es adjacentes às estruturas mais diretamente tecidas por essa conjun o, especialmente em textos de teor opinativo. Para o presente trabalho, foi selecionado o texto Muita informa o, pouco conhecimento, divulgado no Jornal Observatório da Imprensa. Este texto, a exemplo de tantos outros, abarca usos recorrentes do mas n o previstos tradicionalmente, já que concretizam atos ligados a asser es, as quais est o inseridas em determinados pontos da cadeia textual. Refere-se, aqui, mais propriamente, ao movimento argumentativo estabelecido pelo conector diante de enunciados vizinhos, tanto os anteriormente apresentados quanto os inseridos na seqüência. This article shows the results of a research on the use of the conjunction "but”, based on studies carried out by Ducrot (1984) and Schiffrin (1987). The relations adjacent to the more direct structures built by this conjunction, especially in opinion texts,are considered in this study. The text “Muita informa o, pouco conhecimento”, published in the “Observatório da Imprensa” newspaper, was selected for the present work. This text, like many others, includes recurrent uses of “but” not traditionally predicted, since they are used for acts linked to assertions, which are inserted in certain points of the textual chain. It is referred here, more properly, to the argumentative movement established by the connectorin face of the nearby utterances, both those previously presented and those inserted in the follow-up.
Nos limites da permiss o: fun es exercidas pelos verbos poder e dever no manual de orienta o do Fundeb = At the limits of permission: functions performed by the verbs poder (can) and dever (must) in the FUNDEB’s guidelines Manual
Aparecida Feola Sella
Acta Scientiarum : Language and Culture , 2011,
Abstract: Apresentam-se resultados obtidos por meio de pesquisa sobre papel da modaliza o exercido pelos verbos poder e dever no interior de textos de cunho orientacional. Procurou-se avaliar como esses verbos se inserem na rela o entre o ato de permiss o ou de possibilidade e o ato de regula o/ordem. Direcionou-se a pesquisa para o Manual do Fundeb, considerando-se a particular fun o de regular utiliza o dos recursos públicos por parte dos Estados, Distrito Federal e Municípios, o que caracteriza contexto de interlocu o juridicamente estabelecido, e, por conseguinte, resulta em corpus viável para análise do processo de modaliza o, principalmente em se tratando do plano de ntico. Diante das análises já desenvolvidas, percebeu-se que o verbo poder pode ser utilizado para demarcar para o leitor a es que devem ser seguidas mediante ato de ordem anteriormente estabelecido. Esse ato de ordem é sinalizado pelo verbo dever, por isso a tentativa de demonstrar a rela o que há entre esses verbos em textos que regulam a es no domínio do público. Também foi possível perceber que o verbo poder pode orientar o leitor no sentido de que há ressalvas/exce es/possibilidades a partir das a es postas no plano do obrigatório, sentido este demarcado pelo verbo dever. This paper presents some results from research on the role of modalization played by the verbs ‘poder’ (can) and ‘dever’ (must) in instructional texts. The research aimed to examine how these verbs behave in the relationship between the act of permission or possibility and the act of regulation/order. The research was directed to the FUNDEB’s Manual, considering its particular function of ruling the use of public resources by States, Federal District and Municipalities. Therefore, this material characterizes a context of interlocution established in the legal field, and, consequently, itconstitutes a feasible corpus for the analysis of the modalization process, particularly when it refers to the deontic level. According to the analyses carried out, the verb ‘poder’ can be used to guide the reader towards the actions that must be performed under an act of order previously established. This act of order is signaled by the verb ‘dever’, and this is the reason by which this study attempts to demonstrate the relationship between the two verbs in texts that regulate actions in the public domain. In addition, it was possible to notice that the verb ‘poder’ can guide the reader towards the existence of reservations/exceptions/possibilities based on the actions established at the obligatory level, meaning that is conve
Por onde anda o sentido?
Aparecida Sella Feola
Acta Scientiarum : Language and Culture , 2008,
Abstract: MARCUSCHI, Luiz Ant nio. Fen menos da linguagem: reflex es semanticas e discursivas.Rio de Janeiro: Lucerna, Série Dispersos, 2007. 176 p. ISBN 978-85-86930-63-8.
Quasi-periodic solutions for fully nonlinear forced reversible Schroedinger equations
Roberto Feola,Michela Procesi
Mathematics , 2014,
Abstract: In this paper we consider a class of fully nonlinear forced and reversible Schroedinger equations and prove existence and stability of quasi-periodic solutions. We use a Nash-Moser algorithm together with a reducibility theorem on the linearized operator in a neighborhood of zero. Due to the presence of the highest order derivatives in the non-linearity the classic KAM-reducibility argument fails and one needs to use a wider class of changes of variables such has diffeomorphisms of the torus and pseudo-differential operators. This procedure automtically produces a change of variables, well defined on the phase space of the equation, which diagonalizes the operator linearized at the solution. This gives the linear stability.
Interventional Radiology Procedures after Pediatric Pyeloplasty and Ureteral Reimplantation in Patients with Postoperative Obstruction  [PDF]
Brent W. Snow, M. Chad Wallis, G. Peter Feola, John W. Rampton, Teisha Shiozaki
Open Journal of Urology (OJU) , 2014, DOI: 10.4236/oju.2014.46015
Abstract:

Introduction: Obstructive complication after pyeloplasty or ureteral reimplant surgery is a rare though worrisome problem in pediatric urology. These are often complex patients with complicated post-operative courses that at times require interventional radiology procedures. The current literature is lacking in guiding principles to manage these complications. In this study we have reviewed these difficult to manage patients at our children’s hospital over the past 15 years. Methods: A list of patients who underwent interventional radiology procedures to place nephrostomy tubes or internal double-J ureteral stents was compared a list of patients undergoing pyeloplasty or reimplant procedures. These lists were cross-referenced to a list of patients undergoing cystoscopic removal of double-J stents. This small patient group does not represent all complications but those with radiology intervention. Results: At our institution, during the years 1998-2011 we performed 458 pyeloplasties and 3003 open ureteral reimplant procedures. 14 (0.4%) met all of the inclusion criteria. The long term outcome of these problems showed 11 of these patients went on to stability or improvement with either percutaneous drainage or JJ stent placement alone, and three of the reimplant patients ultimately required redo surgery. Of our pyeloplasty patients only three required percutaneous nephrostomy tube, and one went on to JJ stent placement (0.66% of pyeloplasties). No patients in the pyeloplasty group needed surgical revision. Of patients how had undergone ureteral reimplantation, with or without tapering, seven of them underwent interventional radiology procedures (0.23% of reimplant patients). Conclusion: Pediatric urology patients with persistent obstruction after pyeloplasties and ureteral reimplantation surgery with or without tapering who needed interventional radiology rescue procedure resolved or stabilized in 11 of 14 patients. Surgical revision was performed in only 3 of our 14 patients after months of conservative trial after interventional radiologic procedures.

Lower-dimensional invariant tori for perturbations of a class of non-convex Hamiltonian functions
Livia Corsi,Roberto Feola,Guido Gentile
Mathematics , 2012, DOI: 10.1007/s10955-012-0682-8
Abstract: We consider a class of quasi-integrable Hamiltonian systems obtained by adding to a non-convex Hamiltonian function of an integrable system a perturbation depending only on the angle variables. We focus on a resonant maximal torus of the unperturbed system, foliated into a family of lower-dimensional tori of codimension 1, invariant under a quasi-periodic flow with rotation vector satisfying some mild Diophantine condition. We show that at least one lower-dimensional torus with that rotation vector always exists also for the perturbed system. The proof is based on multiscale analysis and resummation procedures of divergent series. A crucial role is played by suitable symmetries and cancellations, ultimately due to the Hamiltonian structure of the system.
Domains of analyticity for response solutions in strongly dissipative forced systems
Livia Corsi,Roberto Feola,Guido Gentile
Mathematics , 2012, DOI: 10.1063/1.4836777
Abstract: We study the ordinary differential equation $\varepsilon\ddot x + \dot x + \varepsilon g(x) = \e f(\omega t)$, where $g$ and $f$ are real-analytic functions, with $f$ quasi-periodic in $t$ with frequency vector $\omega$. If $c_{0} \in \mathbb{R}$ is such that $g(c_0)$ equals the average of $f$ and $g'(c_0)\neq0$, under very mild assumptions on $\omega$ there exists a quasi-periodic solution close to $c_0$. We show that such a solution depends analytically on $\varepsilon$ in a domain of the complex plane tangent more than quadratically to the imaginary axis at the origin.
Convergent series for quasi-periodically forced strongly dissipative systems
Livia Corsi,Roberto Feola,Guido Gentile
Mathematics , 2012,
Abstract: We study the ordinary differential equation ${\varepsilon}\ddot x+\dot x + {\varepsilon} g(x) = {\varepsilon} f(\omega t)$, with $f$ and $g$ analytic and $f$ quasi-periodic in $t$ with frequency vector $\omega\in R^{d}$. We show that if there exists $c_0\in R$ such that $g(c_0)$ equals the average of $f$ and the first non-zero derivative of $g$ at $c_0$ is of odd order $n$, then, for ${\varepsilon}$ small enough and under very mild Diophantine conditions on $\omega$, there exists a quasi-periodic solution close to $c_0$, with the same frequency vector as $f$. In particular if $f$ is a trigonometric polynomial the Diophantine condition on $\omega$ can be completely removed. This extends results previously available in the literature for $n=1$. We also point out that, if $n=1$ and the first derivative of $g$ at $c_0$ is positive, then the quasi-periodic solution is locally unique and attractive.
The incidence of hip, forearm, humeral, ankle, and vertebral fragility fractures in Italy: results from a 3-year multicenter study
Umberto Tarantino, Antonio Capone, Marco Planta, Michele D'Arienzo, Giulia Letizia Mauro, Angelo Impagliazzo, Alessandro Formica, Francesco Pallotta, Vittorio Patella, Antonio Spinarelli, Ugo Pazzaglia, Guido Zarattini, Mauro Roselli, Giuseppina Montanari, Giuseppe Sessa, Marco Privitera, Cesare Verdoia, Costantino Corradini, Maurizio Feola, Antonio Padolino, Luca Saturnino, Alessandro Scialdoni, Cecilia Rao, Giovanni Iolascon, Maria Luisa Brandi, Prisco Piscitelli
Arthritis Research & Therapy , 2010, DOI: 10.1186/ar3213
Abstract: We carried out a 3-year survey at 10 major Italian emergency departments to evaluate the hospitalization rate of hip, forearm, humeral, ankle, and vertebral fragility fractures in people 45 years or older between 2004 and 2006, both men and women. These data were compared with those recorded in the national hospitalizations database (SDO) to assess the overall incidence of fragility fractures occurring at hip and other sites, including also those events not resulting in hospital admissions.We observed 29,017 fractures across 3 years, with hospitalization rates of 93.0% for hip fractures, 36.3% for humeral fractures, 31.3% for ankle fractures, 22.6% for forearm/wrist fractures, and 27.6% for clinical vertebral fractures. According to the analyses performed with the Italian hospitalization database in year 2006, we estimated an annual incidence of 87,000 hip, 48,000 humeral, 36,000 ankle, 85,000 wrist, and 155,000 vertebral fragility fractures in people aged 45 years or older (thus resulting in almost 410,000 new fractures per year). Clinical vertebral fractures were recorded in 47,000 events per year.The burden of fragility fractures in the Italian population is very high and calls for effective preventive strategies.Italy has one of the highest life expectancies in the world: according to the Italian National Institute for Statistics (ISTAT), life expectancy at birth increased at a rate of 4 months per year from 1950 to 2005, reaching 78.4 years for men and 87.4 years for women, respectively [1,2]. Twenty percent of the Italian population (12,085,058 people) is actually older than 65 years [1], but 5.6% of these are 80 years and older [1]. The national aging index was recently computed at 143.1, with southern Italian regions younger than northern areas of the country [1]. Increased life expectancy is associated with a greater frailty of elderly people and a higher prevalence of chronic and degenerative diseases, including osteoporosis. The World Health Organization
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