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Search Results: 1 - 10 of 480378 matches for " Francisco Corrêa; Vasconcelos "
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Metric measurements and attachment levels of the medial patellofemoral ligament: an anatomical study in cadavers
Arag?o, José Aderval;Reis, Francisco Prado;Vasconcelos, Diego Protásio de;Feitosa, Vera Lúcia Corrêa;Nunes, Marco Antonio Prado;
Clinics , 2008, DOI: 10.1590/S1807-59322008000400021
Abstract: objective: to determine the metric measurements and to verify the attachment levels of the medial patellofemoral ligament in human cadavers. methods: seventeen knees (eight right and nine left knees) from 10 cadavers (nine male and one female) were dissected and stored in a 10% formaldehyde solution. all of the knees were whole and did not show any macroscopic signs of injuries. results: the medial patellofemoral ligament was present in 88% of the knees studied, localized transversally between the medial femoral epicondyle and the medial margin of the patella. its dimensions were quite variable, even between the knees of the same individual. the width of the patellar insertion ranged from 16 to 38.8 mm, with a mean of 27.90 mm, and its mean length was 55.67 mm. the margins of the ligament were concave or rectilinear. at the upper margin, the concave form predominated and was better characterized, while at the lower margin, the rectilinear form predominated. conclusions: the medial patellofemoral ligament is a very distinct structure with variable anatomical aspects and is always located in a plane inferior to the vastus medialis obliquus muscle.
Encontro de Aedes albopictus no Estado do Pará, Brasil
Segura,Maria de Nazaré de Oliveira; Monteiro,Hamilton Antonio de Oliveira; Lopes,Ernani da Silva; Silva,Orlando Vaz da; Castro,Francisco Corrêa; Vasconcelos,Pedro Fernando da Costa;
Revista de Saúde Pública , 2003, DOI: 10.1590/S0034-89102003000300020
Abstract: it is first reported the detection of aedes (stg) albopictus mosquitoes in state of pará, brazil, in the urban area of medicilandia, a municipality far 90 km from altamira, where 42 adult mosquitoes were baited using human attraction. all mosquitoes were pooled and inoculated into c6/36 and suckling mice in attempts for virus isolation. no virus was isolated. the occurrence of aedes albopictus in urban areas of the amazon region is of concern since dengue and yellow fever viruses are endemic in the amazon and thus there is a potential risk for this mosquito species to become infected with both viruses.
Primeiro registro de Aedes (Stegomyia) albopictus no Estado do Ceará, Brasil
Martins,Víctor Emanuel Pessoa; Martins,Marlos Gomes; Araújo,José Maria Paz de; Silva,Luís Osvaldo Rodrigues; Monteiro,Hamilton Antonio de Oliveira; Castro,Francisco Corrêa; Vasconcelos,Pedro Fernando da Costa; Guedes,Maria Izabel Florindo;
Revista de Saúde Pública , 2006, DOI: 10.1590/S0034-89102006000500027
Abstract: for the first time, the occurrence of aedes (stegomyia) albopictus in an urban area of the city of fortaleza, northeastern, brazil, is reported. from january to july 2005, ovitraps were used to collect eggs from aedes spp., which were kept under laboratory conditions to develop into the adult phase. the resultant mosquitoes were identified and subjected to dengue virus isolation tests. thirteen specimens of aedes albopictus, all females, were identified. no dengue virus was isolated in any of the mosquito pools. even though aedes albopictus has not been incriminated in brazilian dengue outbreaks, the possibility of dengue virus transmission by these mosquitoes cannot be dismissed.
Absorption Levels and Morphological Features of Fetal Organs in Wistar Rats Treated with Lead Acetate
Bomfim,Kátia Michelle dos Anjos; Garcia,Carlos Alexandre Borges; Reis,Francisco Prado; Palmeira,José Arnaldo Vasconcelos; Scher,Ricardo; de Lucca Júnior,Waldecy; Arag?o,José Adeval; Vasconcelos,Francis Lima; Albuquerque Júnior,Ricardo Luiz Cavalcanti; Feitosa,Vera Lúcia Corrêa;
International Journal of Morphology , 2012, DOI: 10.4067/S0717-95022012000100021
Abstract: lead is one of the heavy metals most used in industry. poisoning due to long-term lead exposure is known as saturnism, and is an occupational illness that has been known for many years. lead is highly toxic and can compromise the structural and functional patterns of organs and systems. the aim of this study was to examine the lungs and kidneys of fetuses from female wistar rats exposed to lead acetate. in this study, the lungs and kidneys of 20 fetuses from female rats that had previously been treated with lead acetate were dissected, fixed, embedded in paraffin and stained with hematoxylin and eosin. macroscopic changes to the shape, color and consistency of organs from fetuses treated with this heavy metal were observed, in comparison with organs from control fetuses. microscopic lesions characterized by vascular sclerosis, cell atrophy or hyperplasia, progressive interstitial fibrosis, inclusion bodies containing lead acetate and glomerular sclerosis were found in the kidneys. the lesions found in the lungs consisted of destructuring of the parenchyma, impregnation with lead acetate, formation of fibrosis, extravasation of vascular fluids, reduction of the alveolar spaces and formation of alveolar edema. these changes were correlated with the level of lead acetate absorption, as determined using atomic spectrophotometry.
Existence of Solutions of a Nonlocal Elliptic System via Galerkin Method
Alberto Cabada,Francisco Julio S. A. Corrêa
Abstract and Applied Analysis , 2012, DOI: 10.1155/2012/137379
Abstract: By means of the Galerkin method and by using a suitable version of the Brouwer fixed-point theorem, we establish the existence of at least one positive solution of a nonlocal elliptic N-dimensional system coupled with Dirichlet boundary conditions.
On the Existence of Solutions of a Nonlocal Elliptic Equation with a -Kirchhoff-Type Term
Francisco Julio S. A. Corrêa,Rúbia G. Nascimento
International Journal of Mathematics and Mathematical Sciences , 2008, DOI: 10.1155/2008/364085
Abstract: Questions on the existence of positive solutions for the following class of elliptic problems are studied: ?[(‖‖1,)]1,Δ=(,), in Ω, =0, on Ω, where Ω?? is a bounded smooth domain, ∶Ω×?
On the existence of positive solution for an elliptic equation of Kirchhoff type via Moser iteration method
Francisco Júlio S. A. Corrêa,Giovany M. Figueiredo
Boundary Value Problems , 2006, DOI: 10.1155/bvp/2006/79679
Abstract: We investigate the questions of existence of positive solution for the nonlocal problem ¢ ’ ( ¢ € –u ¢ € –2) ”u=f( ,u) ¢ € in ¢ € and u=0 on ¢ , where is a bounded smooth domain of ¢ N, and M and f are continuous functions.
Multiplicity of Positive Solutions for an Obstacle Problem in R
Claudianor O. Alves,Francisco Julio S. A. Corrêa
Mathematics , 2013,
Abstract: In this paper we establish the existence of two positive solutions for the obstacle problem $$ \displaystyle \int_{\Re}\left[u'(v-u)'+(1+\lambda V(x))u(v-u)\right] \geq \displaystyle \int_{\Re} f(u)(v-u), \forall v\in \Ka $$ where $f$ is a continuous function verifying some technical conditions and $\Ka$ is the convex set given by $$ \Ka =\left\{v\in H^{1}(\Re); v \geq \varphi \right\}, $$ with $\varphi \in H^{1}(\Re)$ having nontrivial positive part with compact support in $\Re$. \vspace{0.2cm} \noindent \emph{2000 Mathematics Subject Classification} : 34B18, 35A15, 46E39. \noindent \emph{Key words}: Obstacle problem, Variational methods, Positive solutions.
A Sub-Supersolution Approach for a Quasilinear Kirchhoff Equation
Claudianor O. Alves,Francisco Julio S. A. Corrêa
Mathematics , 2014, DOI: 10.1063/1.4919670
Abstract: In this paper we establish an existence result for a quasilinear Kirchhoff equation via a sub and supersolution approach, by using the pseudomonotone operators theory.
Morphometric and topographic study of coronary ostia
Cavalcanti, Jennecy Sales;Melo, Natália Corrêa Vieira de;Vasconcelos, Renata Sim?es de;
Arquivos Brasileiros de Cardiologia , 2003, DOI: 10.1590/S0066-782X2003001200003
Abstract: objective: to investigate the morphometric and topographic aspects of coronary ostia, correlating them with the aortic leaflets. methods: fifty-one hearts with the great vessels attached were analyzed in this study. the ascending aorta was transversally sectioned 1 cm above the commissures of the aortic leaflets. the right and left coronary ostia were analyzed, as were the distances from these ostia to the bottom of the aortic sinuses and to the commissures of the aortic leaflets. results: the left coronary ostium was located below the intercommissural line in 42% of cases, above that line in 40% of cases, and at the level of that line in 18% of cases. the mean distance from the left coronary ostium to the bottom of the corresponding sinus was 12.6±2.61 mm. the right coronary ostium was located below the intercommissural line in 60% of cases, above that line in 28% of cases, and at the level of that line in 12% of cases. the mean distance from the right coronary ostium to the bottom of the corresponding aortic sinus was 13.2±2.64 mm. the mean diameters of the left and right coronary ostia were 4.75±0.93 mm and 3.46±0.94 mm, respectively. the mean diameters of the juxtamural portion of the left and right coronary arteries were 3.75±0.79 mm and 2.9±0.73 mm, respectively. in one case, both ostia were located in the left coronary sinus. conclusion: the left coronary ostium may be located either above or below the intercommissural line. the right coronary ostium is predominantly located below the intercommissural line. the coronary ostia have reduced diameters as compared with the juxtamural diameters of their respective coronary arteries.
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