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Search Results: 1 - 10 of 15504 matches for " Rodrigo Mota Pacheco; "
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Morphometric Study of the Proximal Femur Extremity in Brazilians Estudio Morfométrico del Extremo Proximal del Fémur en Brasile os
Eduardo Branco de Sousa,Rodrigo Mota Pacheco Fernandes,Marcelo Bezerra Mathias,Mauro Roberto Rodrigues
International Journal of Morphology , 2010,
Abstract: Brazilian populational aging besides higher life expectancy has increased the incidence of proximal femoral fractures. Treatment of those fractures uses implants which are based in measurements performed in caucasians, including the 135 degrees cervical-diaphyseal angle. Knowing femoral morphometry allows evaluating implants adequability. We performed our study using 110 Brazilian human femurs (49 right and 61 left). We excluded from the study: bones submitted to osteosyntesis, to prosthetization or those showing abnormalities or malformations which could affect its structure and shape. Bones were submitted to roetgenographic analysis and the images were scanned and transferred to personal computer. Measurements were obtained by AutoCad software and statistics by Graph Pad Instat software. Our data were compared using Kolmogorov-Smirnov and "t-test". The following parameters were evaluated: femoral head diameter (FHD), femoral neck length (FNL), femoral neck width (FNW), femoral axis length (FAL), off-set (OS) and cervical-diaphyseal angle (CDA). The findings were as follows (mean ± SD), right and left sides respectively: FHD, 31.1 ± 2.7 mm and 30.8 ± 3.0 mm; FNL, 30.1 ± 4.3 mm and 30.5 ± 4.1mm; FNW, 30.96 ± 2.94 mm; FAL, 98.2 ± 5.9 mm and 97.4 ± 7.13 mm; OS, 42.6 ± 6.1 mm and 42.0 ± 5.6 mm; CDA, 132.0 ± 7.2 e 131.8 ± 5.2. Median cervical-diaphyseal angle, obtained in this study presented some variation, which was not statistically significant. Linear data are constant, according to other studies, except the off-set, which has varied. Junto al envejecimiento de la población de Brasil, producto de la mayor expectativa de vida, ha aumentado la incidencia en las fractura de la parte proximal del fémur. Para el tratamiento de estas fracturas se utilizan implantes, los que estan basados en mediciones realizadas en caucásicos, incluido los 135 grados del ángulo cervico-diafisario. Conocer la morfometría femoral permite evaluar adecuabilidad de los implantes. Se realizó este estudio con 110 fémures humanos (49 derechos y 61 izquierdos) de individuos brasile os. Se excluyeron del estudio: los huesos sometidos a osteosíntesis, a prótesis o en los que se detectaron anormalidades o malformaciones que pudieran afectar su estructura y forma. Los huesos fueron sometidos a análisis radiográfico y las imágenes digitalizadas y transferidas a un computador personal. Las mediciones se obtuvieron mediante el software AutoCAD y las estadísticas con el software Instat. Nuestros datos se compararon con la prueba de Kolmogorov-Smirnov y "t-test". Los siguientes parámetros fuer
Anomalous origin of the deep brachial artery (profunda brachii) observed in bilateral arms: case report Origem an mala da artéria braquial profunda (profunda brachii) observada em bra os bilaterais: relato de caso
Rafael Cisne de Paula,Rafael Erthal,Rodrigo Mota Pacheco Fernandes,Marcio Ant?nio Babinski
Jornal Vascular Brasileiro , 2013,
Abstract: During an ordinary dissection, a cadaver showed a bilateral anomalous origin of the deep brachial artery, where this vessel appeared like a branching of the subscapular artery with common trunk, which included the posterior circumflex humeral artery. The course and distribution of the deep brachial artery in the back compartment were relatively consistent with previous reports. Arterial variations can be damaged through iatrogenic means if not properly documented. The knowledge of this case is very important in clinical medicine and in surgeries in this compartment to prevent any injury. Durante disseca o em prática usual, um cadáver apresentou origem an mala da artéria braquial profunda, na qual este vaso apareceu como um ramo da artéria subescapular com um tronco comum, que incluiu a artéria circunflexa posterior do úmero. O curso e a distribui o da artéria braquial profunda no compartimento posterior foram relativamente coincidentes com relatos prévios. Varia es arteriais podem ser danificadas de maneira iatrogênica se n o forem adequadamente documentadas. O conhecimento desse caso é muito importante na prática clínica e em cirurgias nesse compartimento para preven o de qualquer injúria.
Morphometric Study of the Proximal Femur Extremity in Brazilians
de Sousa,Eduardo Branco; Fernandes,Rodrigo Mota Pacheco; Mathias,Marcelo Bezerra; Rodrigues,Mauro Roberto; Ambram,Albert James; Babinski,Marcio Antonio;
International Journal of Morphology , 2010, DOI: 10.4067/S0717-95022010000300027
Abstract: brazilian populational aging besides higher life expectancy has increased the incidence of proximal femoral fractures. treatment of those fractures uses implants which are based in measurements performed in caucasians, including the 135 degrees cervical-diaphyseal angle. knowing femoral morphometry allows evaluating implants adequability. we performed our study using 110 brazilian human femurs (49 right and 61 left). we excluded from the study: bones submitted to osteosyntesis, to prosthetization or those showing abnormalities or malformations which could affect its structure and shape. bones were submitted to roetgenographic analysis and the images were scanned and transferred to personal computer. measurements were obtained by autocad software and statistics by graph pad instat software. our data were compared using kolmogorov-smirnov and "t-test". the following parameters were evaluated: femoral head diameter (fhd), femoral neck length (fnl), femoral neck width (fnw), femoral axis length (fal), off-set (os) and cervical-diaphyseal angle (cda). the findings were as follows (mean ± sd), right and left sides respectively: fhd, 31.1 ± 2.7 mm and 30.8 ± 3.0 mm; fnl, 30.1 ± 4.3 mm and 30.5 ± 4.1mm; fnw, 30.96 ± 2.94 mm; fal, 98.2 ± 5.9 mm and 97.4 ± 7.13 mm; os, 42.6 ± 6.1 mm and 42.0 ± 5.6 mm; cda, 132.0 ± 7.2 e 131.8 ± 5.2. median cervical-diaphyseal angle, obtained in this study presented some variation, which was not statistically significant. linear data are constant, according to other studies, except the off-set, which has varied.
A mediastinoscopia no diagnóstico de doen?as intratorácicas
Júdice, Luiz Felippe;Mourad, Omar Moté Abou;Lima, Oriane Almeida Santana;Júdice, ?ngelo Mesquita;Diégues, Pedro Henrique M. Braga;Fernandes, Rodrigo Mota Pacheco;
Revista do Colégio Brasileiro de Cirurgi?es , 1998, DOI: 10.1590/S0100-69911998000100009
Abstract: the cervical mediastinoscopy, developed by carlens in 1959 is used primarily to evaluate, before thoracotomy, the status of mediastinal limph nodes in patients with lung cancer. however, exploration of the anterior mediastinum by these techniques can also identify other diseases processes such as sarcoidosis, tuberculosis, mycotic granulomatous infections and neoplastic diseases involving the mediastinum such as lymphoma. ln this study we analyze the medical reports of 125 patients in which mediastinoscopy was performed for the diagnosis of intrathoracic diseases. the procedure was performed with general anesthesia and orotracheal intubation in all patients out in two, submitted to mediastinoscopy with local anesthesia. the surgical approaches used were: cervical (n=103). anterior (n=7) and cervical + anterior (n=15). there were 80 male and 45 female patients. the age ranged from 13 to 75 years. carcinoma was the most prevalent diagnosis obtained (36.8%), followed by lymphoma (16%) and sarcoidosis (14.4%). in nine patients the exam was inconclusive, being responsible for a 7.2% failure index of the method. in eleven patients presenting superior vena cava syndrome, mediastinoscopy was performed without aditional complications, except in one case in which symptoms worsenned. we conclude that mediastinoscopy is a safe procedure and it is a valuable tool for the diagnosis of paratracheal mediastinal masses and lymphadenomegalies.
On a family of exact solutions for a nonlinear diffusion equation
Rodrigo Meneses Pacheco
Mathematics , 2014,
Abstract: We present a complete description of the similarity solutions $u_{\alpha}(x,t)=t^{-\alpha/2}f(\Vert x \Vert/\sqrt{t};\alpha)$ for the following nonlinear diffusion equation $$ u_{t}+\gamma\vert u_{t} \vert =\Delta u\qquad(-1<\gamma<1) $$ The behaviors of these solutions are obtained through the explicit representation of $f(\eta;\alpha)$, in terms of Kummer and Tricomi functions. Considering results about confluent hypergeometric functions, new methods to describe asymptotic and oscillatory behaviors of the similarity solutions are obtained. We prove that there exists an increasing and unbounded sequence of positive similarity exponents such that the associated profile $f$ has a gaussian rate decay. These special similarity exponents are related with the zeros of Kummer and Tricomi functions. Finally, we indicate how to extend our results on more general nonlinear diffusion equations.
Qualidade de vida em sobreviventes de acidente vascular cerebral: instrumentos de avalia??o e seus resultados
Mota, Juliana Ferreira;Nicolato, Rodrigo;
Jornal Brasileiro de Psiquiatria , 2008, DOI: 10.1590/S0047-20852008000200013
Abstract: objective: the purpose of this study is to identify generical and specific instruments used for valueing quality of life (qol) and their outcomes in stroke survivors. methods: review of literature of last 10 years, with people above 18 years old, in medline and lilacs database. the instruments used on the studies were validated for the their countries. 96 articles have been considered relevant and 31 were in accordance with inclusion criteria. five kind of generic/profile, nine generic/utility and two specific instruments were found. the more frequent was sf-36, on the 45,2% of the studies. it has been observed that poverty in quality of life was related to defective the physical function, to the presence of depression or its symptoms, to the feminine gender and to being older. in general, survivors of cerebrovascular accident had worse qol than the ones who did not suffer it. conclusion: it has been found 16 instruments for qol' assessment. the poverty of qol was frequent on stroke survivors and was related to physical function, depression, sex and age.
Femoral Tunnels in Anatomical ACL Reconstruction: Techniques Inside Out X Outside In  [PDF]
Alexandre Pagotto Pacheco, Luiz Guilherme Hartmann, Roberto Freire da Mota e Albuquerque, Oswaldo Taglietta Filho
Open Journal of Orthopedics (OJO) , 2018, DOI: 10.4236/ojo.2018.810040
Abstract: Objective: To observe the accuracy and the advantages and disadvantages of the femoral tunnels made by the two techniques. Materials and Methods: We randomly summoned nineteen patients undergoing anatomic ACL reconstruction in a single band technique by the same surgeon: Ten by group II (GII) and nine by Group I (GI). GI: drilling in the technical in-out. GII: drilling the technique out-in. The patients underwent a CT scan with three-dimensional reconstruction of the distal femur. Was applied the technique of quadrants described by Bernard and Hertel and optimized for position by Forsythe and observed in the femoral tunnel: the accuracy of the joint entry; posterior cortical thickness in that point; emergency lateral distance to the lateral epicondyle and the overall length. Results: The coordinates of the distances obtained average was very close, with no statistical difference comparable to that obtained by Bernard and Hertel and Forsythe. The distance from the tunnel exit to the lateral epicondyle obtained average 1.46 cm in GI and 0.47 cm in GII, with a significant statistical difference. The thickness of the posterior cortex was 3.9 mm in GI and 5.4 mm in GII, with no statistical difference. The length averaged was 3.07 cm in GI and GII in 2.94 cm, with no statistical difference. Conclusions: Both techniques allow well placed tunnels, with no statistical difference. In the technique in-out the tunnel exit is closer to the lateral epicondyle. The thickness of the posterior cortex is similar. The length of the femoral tunnel is similar and around 3 cm.
Non-self adjoint Sturm-Liouville problem with spectral and physical parameters in boundary conditions
Rodrigo Meneses Pacheco,Oscar Orellana
Mathematics , 2014,
Abstract: We present a complete description on the spectrum and eigenfunctions of the following two point boundary value problem $$(p(x)f')'-(q(x)-\lambda r(x))f=0\;, \;\; 00$ and $\beta_{1}<0$, where neither self adjoint operator theorems on Hilbert spaces nor Sturm's comparison results can be used directly. We describe the spectrum and the oscillatory results of the eigenfunctions from a geometrical approach, using a function related to the Pr\"ufer angle. The proofs of the asymptotic results of the eigenvalues and separation theorem of the eigenfunctions are developed through classical second order differential equation tools. Finally, the results on the spectrum of the equation are used for the study of the linear instability of a simple model for the fingering phenomenon on the flooding oil recovery process.
Haiti: uma reconstru o em peda os
Thiago Gehre Galv?o,Rodrigo dos Santos Mota
Meridiano 47 : Boletim de Análise de Conjuntura em Rela??es Internacionais , 2010,
Abstract: O fantasma do passado colonial, juntamente com o oportunismo e o pragmatismo da ajuda humanitária internacional produzem a es desencontradas no processo de reconstru o do Haiti após o terremoto.
Genetic and quantitative evaluation of breeding traits in thoroughbred mares
Rodrigo Zaiden Taveira and Marcilio Dias Silveira da Mota
REDVET , 2007,
Abstract: Summary The components of additive (a2 2Very little information is found about genetic ), phenotypic ( ) environmental (e p2parameters of breeding traits in horses. ) found were variances and heritability (hTherefore, a study was conducted utilizing 0.84324, 1.39398, 2.23722 and 0.38, information from 7,278 Thoroughbred mares, respectively. The average of first period of of which there were 6,327 entries regarding gestation was 337.83 days, with a standard age at first covering (AFC), 5,400 related to deviation of 9.47 days, minimum of 302 and age at first parturition (AFP), 5,473 related to maximum of 396 days. The components of 2 2first period of gestation (FPG) and 4,404 ), environmental ( ),phenotypic additive (a e2 2related to first foaling interval (FFI). Data () variances and heritability (h ) were pwere analyzed using maximum restricted 13.01471, 66.34142, 79.35613 and 0.16, likelihood, with the application of MTDFREML respectively. The average of first foaling (“Multiple Trait Derivative Free estricted interval was 490.18 days, with a standard Maximum Likelihood; Boldman et al., 1993) deviation of 192.02 days, minimum of 303 e for variance and covariance components maximum of 1095 days. The components of 2 2estimate. The average age at first covering ), environmental ( ), phenotypic additive (a e2 2was 4.93 years, with a standard deviation of ) variances and heritability (h ) found were (p1.45 years, minimum of 2.07 and maximum of 351.88679, 34836.79221, 35188.679 and 11.94 years. The components of additive 0.01, ectively. 2 2 2), environmental ( ), phenotypic ( ) (a e p2) were 0.34048, variances and heritability (h1.42908, 1.76955 and 0.19 respectively. parameters Average age at first parturition was 6.01 years, with a standard deviation of 1.53 years,
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