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Search Results: 1 - 10 of 297836 matches for " Fortunato Júnior "
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Avalia??o de performances por ouvintes: um estudo com estudantes de licenciatura em música da FAMES
Quadros Júnior, Jo?o Fortunato Soares de;Brito, Mikely Pereira;
Per Musi , 2012, DOI: 10.1590/S1517-75992012000200011
Abstract: this study investigated the relationship between expressivity variation and performances preference in the opinion of listeners, taking as study object undergraduate music students from fames. assuming that an expressive performance and the listener's appreciation level are positively correlated, this paper submitted the students to three different performances of the same piece. thus, each performance, previously considered by independent judges as having a high, medium and low expressivity, received a preference level given by each student, and the premise was evaluated. students were also requested to indicate which musical aspects they consider preponderant on the construction of an expressive music performance. the results indicate a direct relation between the level of expressivity and the performance preference. about the musical aspects most related to musical expression, are confirmed the associations made by listeners between expressivity in musical performance and changes in dynamic, intensity, duration, time variation, articulation, timbre and time.
Avalia o de performances por ouvintes: um estudo com estudantes de licenciatura em música da FAMES Evaluation of performances for listeners: a study with undergraduate music students from FAMES
Jo?o Fortunato Soares de Quadros Júnior,Mikely Pereira Brito
Per Musi , 2012,
Abstract: Este estudo investigou a rela o entre a varia o de expressividade e a preferência de performances na opini o de ouvintes, tomando como objeto de estudo os estudantes do curso de licenciatura em música da FAMES. Partindo da premissa que correlaciona positivamente uma performance expressiva ao nível de aprecia o do ouvinte, este trabalho submeteu os estudantes a três performances distintas de uma mesma obra. Dessa maneira, cada performance considerada previamente por juízes independentes como de alta, média e baixa expressividade, recebeu um nível de preferência atribuído por cada aluno e a premissa foi avaliada. Os estudantes também foram solicitados a indicar quais aspectos musicais eles consideram preponderantes na constru o de uma performance musical expressiva. Os resultados apontam para uma rela o direta entre o nível de expressividade e a preferência de performance. Quanto aos aspectos musicais relacionados à expressividade, confirmam-se as associa es feitas pelos ouvintes entre a expressividade na performance musical e as varia es de dinamica, intensidade, tempo, agógica, articula o, altura e timbre. This study investigated the relationship between expressivity variation and performances preference in the opinion of listeners, taking as study object undergraduate music students from FAMES. Assuming that an expressive performance and the listener's appreciation level are positively correlated, this paper submitted the students to three different performances of the same piece. Thus, each performance, previously considered by independent judges as having a high, medium and low expressivity, received a preference level given by each student, and the premise was evaluated. Students were also requested to indicate which musical aspects they consider preponderant on the construction of an expressive music performance. The results indicate a direct relation between the level of expressivity and the performance preference. About the musical aspects most related to musical expression, are confirmed the associations made by listeners between expressivity in musical performance and changes in dynamic, intensity, duration, time variation, articulation, timbre and time.
Levantamento de perdas e desperdícios dos sistemas produtivos por meio da utiliza o dos coletores de dados
Fernando Aparecido Pacheco da Silva Fortunato,Milton Vieira Júnior,Elesandro Ant?nio Baptista
Exacta , 2011,
Abstract: To offer consumers quality products at affordable prices, companies strive to reduce their production costs. The Toyota Production System philosophy advocates minimizing costs through the elimination of losses and waste. This reduction occurs with the implementation of actions to improve production system; but to implement actions for improvement the management needs reliable information on the particular production system in order to identify which site needs improvement. The collection of information on production system is traditionally done by filling out printed forms; however, this method can produce inaccurate results and the accumulation of papers, which is considered a loss. Faced with the need for obtaining reliable information and in the shortest time possible, this article aims to present the data collectors and demonstrate how these devices can assist in monitoring losses and waste of productive systems.
Reopera??o de valva mitral totalmente endoscópica: relato de caso
Fortunato Júnior, Jeronimo Antonio;Branco Filho, Alcides D.;Branco, Anibal;Martins, André Luiz M.;Pereira, Marcelo;
Revista Brasileira de Cirurgia Cardiovascular , 2008, DOI: 10.1590/S0102-76382008000300020
Abstract: minimum incision techniques in cardiac surgery have been on the rise after their inclusion in videothoracoscopy. video-assisted minimally invasive cardiac surgery is considered by many centers in the world to be the approach of choice for treatment of mitral and aortic valve diseases. the aim of this is study is to report a case of valve repair in a patient with mitral restenosis after surgical repair 12 years before. through a minimally invasive and totally endoscopic procedure, it was possible to successfully perform a mitral commissurotomy with only videoscopic support, and without any incisions larger than those needed to introduce the trocars for instrumentation.
Cirurgia cardíaca videoassistida: 6 anos de experiência
Fortunato Júnior, Jeronimo Antonio;Pereira, Marcelo Luiz;Martins, André Luiz M.;Pereira, Daniele de Souza C.;Paz, Maria Evangelista;Paludo, Luciana;Branco Filho, Alcides;Milosewich, Branka;
Revista Brasileira de Cirurgia Cardiovascular , 2012, DOI: 10.5935/1678-9741.20120006
Abstract: introduction: minimally invasive and video-assisted cardiac surgery (vacs) has increased in popularity over the past 15 years. the small incisions have been associated with a good aesthetic effect and less surgical trauma, therefore less postoperative pain and rapid recovery. objectives: to present our series with vacs, after 6 years of use of the method. methods: 136 patients underwent vacs, after written consent, between september 2005 and october 2011, 50% for men and age of 47.8 ± 15, 4anos, divided into two groups: with cardiopulmonary (cec) (gccec=105 patients): mitral valve disease (47/105), aortic disease (39/105), congenital heart disease (19/105) and without extracorporeal circulation (cec) (gscec=31 patients): cardiac resynchronization (18/ 31), cardiac tumor (4/31) and minimally invasive coronary artery bypass grafting (6/31). gccec was held in right minithoracotomy (3 to 5 cm) and femoral access to perform cannulation. results: in gccec, mean length of icu stay and hospital stay were respectively 2.4 ± 4.5 days and 5.0 ± 6.8 days. twelve patients presented complications in post-operative and five (4.8%) death. ninety-three (88.6%) patients evolved uneventful, were extubated in operating room, and remained a mean of 1.8 ± 0.9 days in icu and 3.6±1.3 days in the hospital. in gscec, were mean 1.3 ± 0.7 days in icu and 2.9 ± 1.4 days in hospital and without complications or deaths. conclusion: the results found in this series are comparable to those of world literature and confirm the method as an option the conventional technique.
Padroniza??o da técnica para cirurgia cardíaca videoassistida: experiência inicial
Fortunato Júnior, Jeronimo Antonio;Branco Filho, Alcides A.;Branco, Aníbal;Martins, André Luiz M.;Pereira, Marcelo L.;Ferraz, Jo?o Gustavo G.;Paludo, Luciana;
Revista Brasileira de Cirurgia Cardiovascular , 2008, DOI: 10.1590/S0102-76382008000200006
Abstract: introduction: minimally invasive cardiac surgery has been performed in major worldwide centers, including procedure such as valves, coronary and congenital surgery. objective: to demonstrate our first works with noninvasive cardiac surgery by mean of the experience gained with general and thoracic surgery. methods: whenever possible to carry out a minimally invasive cardiac surgery, this was the approach of choice. the left thoracoscopy was used in four cases: (1) symptomatic coronary-pulmonary fistula ligation; (2) implant of an epicardial electrode into the left ventricle for resynchronization; (3) excision of pericardial giant lipoma in the left atrium, and (4) resection of hemangiolipoma in the mediastinum. right thoracoscopy with extracorporeal circulation through cardiopulmonary bypass via femoral vein and artery and cardiac arrest in ventricular fibrillation with moderate hypothermia were carried out in the following cases: (5) patient with mitral stenosis after surgical repair with carpentier ring 12 years before. an anterior and posterior commissurotomy without thoracotomy was successfully made; (6) patient with idiopathic dilated cardiomyopathy, high-response atrial fibrillation, and severe mitral insufficiency, underwent mitral repair surgery with gregori's ring and ablation of the pulmonary veins with radio-frequency catheter. (mazze modified). result: no death occurred in this series and the surgical result in all cases was highly satisfactory. all patients were discharged from hospital with a mean time of 5.5 ± 5 days after intervention. conclusion: our initial experience in this field proves the effectiveness and the viability in introducing this type of technique.
Videotoracoscopia para fechamento de fístula coronário-pulmonar: relato de caso
Fortunato Júnior, Jeronimo Antonio;Branco Filho, Alcides A;Granzotto, Paula C. N;Moreira, Letícia M. S;Martins, André Luiz M;Pereira, Marcelo L;Ferraz, Jo?o Gustavo G;
Revista Brasileira de Cirurgia Cardiovascular , 2010, DOI: 10.1590/S0102-76382010000100021
Abstract: the coronary artery fistulas (fac) are rare and often found occasionally. the conventional treatment can be made by surgical closure with median thoracotomy or with embolization by catheterization. we describe an innovative technique to ligature of fac, on a full endoscopy. women, 45 years with symptomatic fistula between coronary artery anterior descending and trunk artery pulmonary, which took thoracoscopy left, pericardiotomy and ligation of fistula with metal clip without thoracotomy. there were no complications, stayed 24 hours in the icu and was in hospital 4 days. the technique was effective, allows easy accessibility surgical and quick post-operative recovery.
Information filtering in complex weighted networks
Filippo Radicchi,José J. Ramasco,Santo Fortunato
Computer Science , 2010, DOI: 10.1103/PhysRevE.83.046101
Abstract: Many systems in nature, society and technology can be described as networks, where the vertices are the system's elements and edges between vertices indicate the interactions between the corresponding elements. Edges may be weighted if the interaction strength is measurable. However, the full network information is often redundant because tools and techniques from network analysis do not work or become very inefficient if the network is too dense and some weights may just reflect measurement errors, and shall be discarded. Moreover, since weight distributions in many complex weighted networks are broad, most of the weight is concentrated among a small fraction of all edges. It is then crucial to properly detect relevant edges. Simple thresholding would leave only the largest weights, disrupting the multiscale structure of the system, which is at the basis of the structure of complex networks, and ought to be kept. In this paper we propose a weight filtering technique based on a global null model (GloSS filter), keeping both the weight distribution and the full topological structure of the network. The method correctly quantifies the statistical significance of weights assigned independently to the edges from a given distribution. Applications to real networks reveal that the GloSS filter is indeed able to identify relevantconnections between vertices.
Finding Statistically Significant Communities in Networks
Andrea Lancichinetti,Filippo Radicchi,José J. Ramasco,Santo Fortunato
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0018961
Abstract: Community structure is one of the main structural features of networks, revealing both their internal organization and the similarity of their elementary units. Despite the large variety of methods proposed to detect communities in graphs, there is a big need for multi-purpose techniques, able to handle different types of datasets and the subtleties of community structure. In this paper we present OSLOM (Order Statistics Local Optimization Method), the first method capable to detect clusters in networks accounting for edge directions, edge weights, overlapping communities, hierarchies and community dynamics. It is based on the local optimization of a fitness function expressing the statistical significance of clusters with respect to random fluctuations, which is estimated with tools of Extreme and Order Statistics. OSLOM can be used alone or as a refinement procedure of partitions/covers delivered by other techniques. We have also implemented sequential algorithms combining OSLOM with other fast techniques, so that the community structure of very large networks can be uncovered. Our method has a comparable performance as the best existing algorithms on artificial benchmark graphs. Several applications on real networks are shown as well. OSLOM is implemented in a freely available software (http://www.oslom.org), and we believe it will be a valuable tool in the analysis of networks.
Kinetics of the Aromatic Nucleophilic Substitution Reaction Between 1-Fluoro-2,4-Dinitrobenzene and Perhydroazepine in Ethyl Acetate + Chloroform Solvent Mixtures
P. M. Mancini,G. Fortunato,A. J. Terenzani
Molecules , 2000, DOI: 10.3390/50300578
Abstract: In the present work, the kinetic behavior of the title reaction in ethyl acetate + chloroform solvent mixtures is studied. The experimental results are compared with previous findings.
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