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Search Results: 1 - 10 of 461787 matches for " A. Babinski "
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Study on the incidence of testicular and epididymal appendages in patients with cryptorchidism
Favorito, Luciano A.;Cavalcante, André G. L.;Babinski, Marcio A.;
International braz j urol , 2004, DOI: 10.1590/S1677-55382004000100011
Abstract: objective: to study the incidence of testicular and epididymal appendages in patients with cryptorchidism. materials and methods: we studied 65 patients with cryptorchidism, totalizing 83 testes and 40 patients who had prostate adenocarcinoma and hydrocele (control group), totalizing 55 testes. the following situations were analyzed: i) absence of testicular and epididymal appendages, ii) presence of testicular appendage only, iii) presence of epididymal appendage, iv) presence of testicular and epididymal appendage, v) presence of 2 epididymal appendages and 1 testicular appendage and vi) presence of paradidymis or vas aberrans of haller. results: in patients with cryptorchidism we found testicular appendages in 23 cases (41.8%), epididymal appendages in 9 (16.3%), testicular and epididymal appendage in 8 (14.5%), 2 epididymal appendages and 1 testicular in 1 (1.8%) and absence of appendages in 14 (25.4%). in the control group, we found testicular appendages in 29 (34.9%), epididymal appendages in 19 (22.8%), testicular and epididymal appendage in 7 (8.4%), and absence of appendages in 28 (33.7%), we did not find 2 epididymal appendages in this group, and none of the patients in the 2 groups presented paradidymis or vas aberrans of haller. conclusion: the occurrence of testicular and epididymal appendages is quite variable. there was no statistically significant difference in the incidence and distribution of the testicular and epididymal appendages between patients with cryptorchidism and those from the control group.
Study on the incidence of testicular and epididymal appendages in patients with cryptorchidism
Favorito Luciano A.,Cavalcante André G. L.,Babinski Marcio A.
International braz j urol , 2004,
Abstract: OBJECTIVE: To study the incidence of testicular and epididymal appendages in patients with cryptorchidism. MATERIALS AND METHODS: We studied 65 patients with cryptorchidism, totalizing 83 testes and 40 patients who had prostate adenocarcinoma and hydrocele (control group), totalizing 55 testes. The following situations were analyzed: I) absence of testicular and epididymal appendages, II) presence of testicular appendage only, III) presence of epididymal appendage, IV) presence of testicular and epididymal appendage, V) presence of 2 epididymal appendages and 1 testicular appendage and VI) presence of paradidymis or vas aberrans of Haller. RESULTS: In patients with cryptorchidism we found testicular appendages in 23 cases (41.8%), epididymal appendages in 9 (16.3%), testicular and epididymal appendage in 8 (14.5%), 2 epididymal appendages and 1 testicular in 1 (1.8%) and absence of appendages in 14 (25.4%). In the control group, we found testicular appendages in 29 (34.9%), epididymal appendages in 19 (22.8%), testicular and epididymal appendage in 7 (8.4%), and absence of appendages in 28 (33.7%), we did not find 2 epididymal appendages in this group, and none of the patients in the 2 groups presented paradidymis or vas aberrans of Haller. CONCLUSION: The occurrence of testicular and epididymal appendages is quite variable. There was no statistically significant difference in the incidence and distribution of the testicular and epididymal appendages between patients with cryptorchidism and those from the control group.
VARIACIONES ANATóMICAS ENTRE EL NERVIO ISQUIáTICO Y EL MúSCULO PIRIFORME DURANTE EL PERíODO FETAL HUMANO ANATOMICAL VARIATIONS BETWEEN SCIATIC NERVE AND PIRIFORM MUSCLE DURING FETAL PERIOD IN HUMAN
F. A. Machado,M. A. Babinski,F. B. Brasil,L. A. Favorito
International Journal of Morphology , 2003,
Abstract: El nervio isquiático, ramo del plexo sacro, abandona la pelvis pasando, generalmente, por debajo del músculo piriforme. Este nervio puede presentar variaciones en su relación con el músculo piriforme, entre ellas, las referidas a la división alta. Sin embargo, son pocos los trabajos que correlacionan esta división con variaciones anatómicas y su relación con el músculo piriforme, en fetos humanos. Con el propósito de verificar una posible asociación entre el trayecto y relaciones de ramos del nervio isquiático, fueron disecadas 100 regiones glúteas de fetos humanos. Se encontraron 3 tipos de variaciones entre el nervio isquiático y el músculo piriforme: en 8 casos (16,0 %) el nervio fibular común pasó a través del músculo y el nervio tibial transcurrió por debajo de su margen inferior (Tipo I). En estos mismos casos se observó que 5 (62,5%) estaban a la izquierda y 3 a la derecha. En un caso (2,0 %), el nervio fibular común hizo su trayecto por sobre el margen superior del músculo piriforme y el nervio tibial pasó por debajo de su margen inferior (Tipo II). Fue observado en el Tipo III,que el nervio isquiático perfora el músculo piriforme, no presentando ninguna división. El músculo piriforme mostró variaciones de fusión con el músculo glúteo mediano (lado derecho =2,0%) y con el músculo gemelo superior (lado derecho =24,0% e izquierdo =32,0%). Estos datos muestran que existe una equivalencia de variacion entre los trayectos y relaciones del nervio isquiático con el músculo piriforme en fetos y adultos. Las variaciones en el músculo piriforme no están asociadas con alteraciones funcionales en la biomecánica de la pelvis. The sciatic nerve, branch of the sacral plexus, leaves the pelvis and passes usually below of the piriform muscle. The sciatic nerve also comes from this plexus and can have distinct relationships with the mentioned muscle, as the high division of the nerve. However, there are few studies that correlate that division with the course of the sciatic nerve and its relationship with the piriform muscle, as well as, variations of that muscle in human fetuse. In order to verify a possible association between those anatomical structures, we dissected 100 gluteal regions of human fetuses. Three types of variations were found between the sciatic nerve and the piriform muscle. The common fibular nerve pierced the muscle and the tibial nerve passed below of its inferior margin in 8 cases (16,0 %), corresponding to the type I. In these cases, we found 62,5% in right side and 37,5% in left side. The type II was observed in 1 case (2,0 %), the common
Quadexciton cascade and fine structure splitting of the triexciton in a single quantum dot
M. R. Molas,A. A. L. Nicolet,A. Babinski,M. Potemski
Physics , 2015,
Abstract: We report the properties of emission lines associated with the cascaded recombination of a quadexciton in single GaAlAs/AlAs quantum dots, studied by means of polarization-resolved photoluminescence and single-photon correlation experiments. It is found that photons which are emitted in a double-step 4X-3X process preserve their linear polarization, similarly to the case of conserved polarization of correlated photons in the 2X-X cascade. In contrast, an emission of either co-linear or cross-linear pairs of photons is observed for the 3X-2X cascade. Each emission line associated with the quadexciton cascade shows doublet structure in the polarization-resolved photoluminescence experiment. The maximum splitting is seen when the polarization axis is chosen along and perpendicular to the [110] crystallographic direction. This effect is ascribed to the fine structure splitting of the exciton and triexciton states in the presence of an anisotropic confining potential of ae dot. We also show that the splitting in the triexciton state surpasses that in the exciton state by a factor up to eight and their ratio scales with the energy distance between the 3X and X emission lines, thus, very likely, with a lateral size and/or a composition of the dot.
Histochemical Features of the Extracellular Matrix in Rattus rattus norvegicus Otic Ganglion
Chagas,M. A.; Babinski,M. A.; Abidu-Figueiredo,M.; Costa,W. S.;
International Journal of Morphology , 2006, DOI: 10.4067/S0717-95022006000100015
Abstract: the otic ganglion is a cranial component of the parasympathetic division of the autonomic nervous system (ans). similar to other parasympathetic ganglia, otic ganglion presents multipolar neurons that are completely surrounded by satellite cells and intercellular substance as well, which allow us to use this ganglion as a good experimental model for studying the relationship neuron / extracellular matrix. we have studied rat otic ganglion in 10 animals through light microscopy. after routine histological methods, 5 μm sections were obtained and coloured by gomori`s trichrome, periodic acid-schiff (pas), alcian blue ph 2.5 and ph1.0, acetylation + pas, acetylation + deacetylation + pas, acid hydrolysis + pas, phenylhydrazine + pas and thiosemicarbazide + pas. the presence of neutral glycoproteins was demonstrated by pas reactivity. pas inhibition following alcian blue staining in ph 2.5 and 1.0 showed the presence of a small quantity of acid glycoprotein. the extracellular matrix analysis showed the presence of neutral and acid glycoconjugates. these findings suggests a mutual interaction and a complex role in ganglionic physiology
MORPHOMETRICAL AND STEREOLOGICAL ANALYSIS OF THE SUPERIOR CERVICAL GANGLION OF Rattus norvegicus SUBMITTED TO CHRONIC TREATMENT WITH CORTISOL
Cortez,C. M.; Costa,W. S.; Babinski,M. A.; Chagas,M. A.;
International Journal of Morphology , 2003, DOI: 10.4067/S0717-95022003000300006
Abstract: the present work investigates the corticoid action on the growth of the superior cervical ganglion of the rat and describes the cortisol effect during early stages of development. the study was based on morphometric and stereological analysis of the perikarya. eight rats were treated intraperitoneally with cortisol (1mg/kg/day) during 36 days. treatment was initiated in the 8th day after birth and was withdrawn one day before the sacrifice. there was a significant difference (£p0,05) for the neural mean diameter between the control group (16.78 ± 1.11mm) and treated animals (15.84 ±0.99mm). the decrease of perikarya neuronal diameter was also demonstrated by stereological methods. morphometrical findings may suggest alterations in superior cervical ganglion neuronal activity in rats treated for long term with cortisol
EL CONOCIMIENTO DE LA ANATOMíA TOPOGRáFICA DE LOS ESTUDIANTES EN LA PRáCTICA DEL EXAMEN FíSICO: ANáLISIS CUANTITATIVO
Brasil,F. B; Babinski,M. A; Sgrott,E. A; Luz,H. P.;
Revista chilena de anatomía , 2002, DOI: 10.4067/S0716-98682002000300007
Abstract: the meticulous physical examination is important as complementary to clinical observation and patient's history and needs the adequate knowledge of the human anatomy. therefore, the objective of this study was to evaluate the nurse students knowledge of topographical anatomy as a basis for the practice of physical examination. a questionnaire was used containing 11 objective questions on anatomy, which are important for the nurse professional practice. for this study, 176 volunteer students enrolled in clinical training were interviewed randomically. the test was applied to students of 6 differents groups (between 4th and 9th period).the data was analysed by contigency analysis (expected data vs obtained data) in the software graphpad instat, being used the exact statistical fisher's test with approach of katz and anova test. p was considered £ 0,05 as significant to determine the difference among the groups. the obtained answers compared individually with the expected ones, presented significant variations. a high index of incorrect answers was found in group a (4th period). after comparison among the groups, a decrease was verified in the proportional average of mistakes (37,9%) and of successes (35,7%) among the 4th period (group a) and the group f (9th period). in the individual analysis of the questions, lack of knowledge on some subjects was large, especially among the student's last clinical periods, where the occurrence of wrong answers was even larger. the data reveal that, the more the student advances in clinical training and the distance from anatomy, increases the less familiarity he or she presents with regard to this knowledge. the high index of mistakes and the variance of the data suggest a revision in the hourly load and curriculum of the course, because the students show difficulties in understanding the contents and the anatomical nomenclature.
MORFOLOGíA Y FRACCIóN DEL áREA DEL LUMEN GLANDULAR DE LA ZONA DE TRANSICIóN EN LA PRóSTATA HUMANA
Babinski,M. A.; Chagas,M. A.; Costa,W.S.; Pereira,M. J.;
Revista chilena de anatomía , 2002, DOI: 10.4067/S0716-98682002000300004
Abstract: although the male reproductive system diseases are not restricted to the prostate, this is one of the most interesting organs for the urologic medical practice. the benign prostatic hyperplasia (bph) represents a tissual increase of these histological elements causing profound alterations in the prostate organisation. therefore this study aims at evaluating the glandular lumen volumetric density (vv) the transition zone (median lobe) in human normal prostates compared with hyperplastic ones (bph). controls consisted of 10 samples of prostates transition region obtained during necropsy of young adults victims of accidents. samples of prostatic tissue of the transition zone were obtained from 10 patients with clinical symptoms of bladder outlet obstruction and histopathological diagnoses of the bph submitted to transvesicalprostatectomy. samples of the 5mm were stained on paraffin sections of prostate using hematoxilin-eosin. for the quantitative analysis the stereology method assisted by a software program was used to verify the vv. the glandular lumen volumetric density showed the significant statistically bph increase, which seems to be related to the bladder outlet obstruction and to the stasis of the luminal contents, causing intraluminal pressure in turn deformations in the glandular with probable consequences in the epithelium, well the to the secretory alterations.
MORFOLOGíA Y FRACCIóN DEL áREA DEL LUMEN GLANDULAR DE LA ZONA DE TRANSICIóN EN LA PRóSTATA HUMANA MORPHOLOGY AND AREAL FRACTION OF THE GLANDULAR LUMEN OF TRANSITION ZONE IN THE HUMAN PROSTATE
M. A. Babinski,M. A. Chagas,W.S. Costa,M. J. Pereira
Revista chilena de anatomía , 2002,
Abstract: Aunque las enfermedades del sistema reproductor masculino no se restringen a la próstata, éste es uno de los órganos más interesantes para la práctica médica urológica. La hiperplasia prostática benigna (HPB) representa un aumento tisular de estos elementos histológicos que causan alteraciones profundas en el organización de la próstata. Este estudio pretende evaluar la densidad volumétrica (VV) del lumen glandular de la zona de transición (lóbulo mediano) en próstatas humanas normales, comparadas con hiperplásicas (HPB). Muestras de tejidos prostáticos de la zona de transición fueron obtenidas de 10 pacientes con síntomas de obstrucción infravesical y diagnóstico histopatológico del HPB, sometidos a prostatectomía transvesical. Para control fueron utilizadas 10 muestras de la región de transición prostática, obtenidas durante la necroscopía de jóvenes adultos, víctimas de accidentes. Los bloques de parafina de muestras prostáticas fueron seccionados con 5μm de grosor y te idos con Hematoxilina y Eosina. Para el análisis cuantitativo, fue usado el método estereológico asistido por un programa de software para verificar la VV. La densidad volumétrica del lumen glandular, mostró un incremento estadísticamente significativo de la HPB, y esto parece estar relacionado con la obstrucción infravesical y el éstasis del contenido luminal, aumentando la presión intraluminal y, por tanto, causa deformaciones de las glándulas con probables consecuencias en el epitelio, así como alteraciones secretorias. Although the male reproductive system diseases are not restricted to the prostate, this is one of the most interesting organs for the urologic medical practice. The benign prostatic hyperplasia (BPH) represents a tissual increase of these histological elements causing profound alterations in the prostate organisation. Therefore this study aims at evaluating the glandular lumen volumetric density (VV) the transition zone (median lobe) in human normal prostates compared with hyperplastic ones (BPH). Controls consisted of 10 samples of prostates transition region obtained during necropsy of young adults victims of accidents. Samples of prostatic tissue of the transition zone were obtained from 10 patients with clinical symptoms of bladder outlet obstruction and histopathological diagnoses of the BPH submitted to transvesicalprostatectomy. Samples of the 5mm were stained on paraffin sections of prostate using hematoxilin-eosin. For the quantitative analysis the stereology method assisted by a software program was used to verify the VV. The glandular lumen volumetric den
EL CONOCIMIENTO DE LA ANATOMíA TOPOGRáFICA DE LOS ESTUDIANTES EN LA PRáCTICA DEL EXAMEN FíSICO: ANáLISIS CUANTITATIVO THE KNOWLEDGE OF TOPOGRAPHICAL ANATOMY BY STUDENTS IN THE PRACTICE OF THE PHYSICAL EXAMINATION: QUANTITATIVE ANALYSIS
F. B Brasil,M. A Babinski,E. A Sgrott,H. P. Luz
Revista chilena de anatomía , 2002,
Abstract: El examen físico minucioso es importante en la complementación de la observación clínica e historia del paciente y necesita del perfecto conocimiento de la anatomía humana. Por tanto, el objetivo de este estudio fue evaluar el conocimiento en Anatomía Topográfica de los estudiantes del ciclo clínico-hospitalario de Enfermería, para la práctica del examen físico. Fue utilizado un cuestionario, conteniendo 11 preguntas objetivas de Anatomía, importantes para la práctica profesional del Enfermero. A partir de la distribución total de alumnos matriculados en el ciclo clínico, fueron entrevistados aleatoriamente, 176 voluntarios que participaron del estudio. La prueba fue aplicada en alumnos de 6 grupos (A al G, equivalentes a los semestres 4o al 9o ). Los datos fueron evaluados por análisis de contingencia (datos esperados vs datos obtenidos) en el Software Graphpad Instat, utilizándose la prueba estadística exacta de FISHER con aproximación de KATZ y prueba de ANOVA. Fue considerado el p< 0,05 como significativo, para determinar la diferencia entre los grupos. Las respuestas obtenidas, comparadas con las esperadas individualmente, presentaron variaciones significativas. Ocurrió alto índice de respuestas incorrectas en el grupo A (4o semestre). Después de la comparación entre los grupos, se constató la disminución en la media proporcional de errores (37,9%) y de aciertos (35,7%) entre el 4o semestre (grupo A) y el 9o semestre (grupo F). En el análisis individual del cuestionario, el desconocimiento sobre algunos temas fue muy grande, especialmente en los alumnos de los últimos semestres clínicos, donde la ocurrencia de respuestas incorrectas fue mayor. Los datos revelan que, mientras más profundiza el alumno en los semestres clínicos, más se aleja de la Anatomía, presentando menor familiaridad con esos conocimientos. El alto índice de errores y la variedad de los datos hacen sugerir una revisión de la carga horaria y de la programación del currículo del curso, pues los alumnos apuntan dificultades en el entendimiento del contenido (aprendizaje) y de la Terminología Anatómica. The meticulous physical examination is important as complementary to clinical observation and patient's history and needs the adequate knowledge of the Human Anatomy. Therefore, the objective of this study was to evaluate the nurse students knowledge of topographical anatomy as a basis for the practice of physical examination. A questionnaire was used containing 11 objective questions on Anatomy, which are important for the nurse professional practice. For this study, 176 volunteer stud
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