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Search Results: 1 - 10 of 144824 matches for " Noro Fábio "
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Apendicite epiplóica: aspectos na ultra-sonografia e na tomografia computadorizada
Melo Alessandro Severo Alves de,Moreira Luiza Beatriz Melo,Pinheiro Ricardo Andrade,Noro Fábio
Radiologia Brasileira , 2002,
Abstract: A apendicite epiplóica é uma condi o inflamatória incomum, porém cada vez mais freqüentemente diagnosticada pelos métodos de imagem atuais (tomografia computadorizada e ultra-sonografia), os quais possibilitam a ado o de conduta terapêutica n o-invasiva e eficiente. Os autores estudaram seis casos de apendicite epiplóica por meio de tomografia computadorizada, que mostraram les es ovaladas de 1 a 2 cm de diametro, de localiza o paracólica, com atenua o de gordura e pequena lamina hiperdensa periférica com gordura marginal peritoneal espessada. Dois desses pacientes foram submetidos a ultra-sonografia, que demonstrou forma es expansivas hiperecóicas, de aspecto ovóide, n o compressíveis, localizadas sob o sítio de maior sensibilidade do abdome.
Apendicite epiplóica: aspectos na ultra-sonografia e na tomografia computadorizada
Melo, Alessandro Severo Alves de;Moreira, Luiza Beatriz Melo;Pinheiro, Ricardo Andrade;Noro, Fábio;Alves, José Ricardo Duarte;Machado, Bruno Beber;
Radiologia Brasileira , 2002, DOI: 10.1590/S0100-39842002000300008
Abstract: epiploic appendicitis is an uncommon inflammatory condition, which is presently better diagnosed by current imaging methods such as computed tomography and ultrasonography that allow a non-invasive and efficient diagnostic approach. the authors studied 6 patients with epiploic appendicitis. the patients were submitted to computed tomography that showed paracolic oval lesions of 1 to 2 cm of diameter, fat attenuation and a thin peripheral hyperdense rim associated with adjacent fat stranding. ultrasound examination performed in two patients showed hyperechoic ovoid noncompressible masses at the site of maximum abdominal tenderness.
Efecto del tipo de concentrado sobre indicadores sanguíneos del metabolismo de energía y de proteínas en vacas lecheras en pastoreo primaveral
Noro,M; Vargas,V; Pulido,R G; Wittwer,F;
Archivos de medicina veterinaria , 2006, DOI: 10.4067/S0301-732X2006000300005
Abstract: the objective of the study was to evaluate the effect of supplementation with starch or fibre-based concentrates on blood metabolites in dairy cows fed spring pasture. twenty seven lactating friesian cows producing 30.0 l/day were assigned to completely randomized design for 42 days. the treatments included: grazing alone (tg), grazing plus 6 kg/d of sugar beet pulp-based concentrate (ta) and grazing plus 6 kg/d of cereal-based concentrate (tf). the cows were supplemented twice a day and managed under a strip grazing system on pasture consisting mainly of perennial ryegrass. six coccigeal blood samples from each cow were obtained for seven consecutive days after the morning milking in vacuum tubes containing sodium heparin and sodium fluoride. plasma was separated after centrifugation, frozen at -25oc and analyzed for ?oh-butyrate, glucose, urea and albumin. the unsupplemented group had a lower glycaemia and a higher ?oh-butyrate concentrations than ta and tf (p < 0.05). it was observed a prevalence of 44% sub clinical ketosis in tp group, and no cases in ta or tf. the glycaemia were higher in ta (p < 0.05). the plasmatic urea concentrations were lower (p < 0.05) in ts and higher in tg (p < 0.05). among the treatments not differences were found for the plasmatic albumin concentrations (p>0.05). from the results it can be concluded that supplementation with starch concentrate advantage the energetic balance in lactating dairy cows at pasture. the supplementation with concentrate based on starch or fibre decreased the risk of sub clinical ketosis, and increase the utilization of pasture nitrogen reducing plasma urea concentrations.
Efecto del tipo de concentrado sobre indicadores sanguíneos del metabolismo de energía y de proteínas en vacas lecheras en pastoreo primaveral Effects of two type of concentrate on energy and protein blood metabolites in grazing dairy cows during spring
M Noro,V Vargas,R G Pulido,F Wittwer
Archivos de medicina veterinaria , 2006,
Abstract: El experimento se desarrolló con el objetivo de determinar y comparar el efecto de la suplementación con concentrados a base de fibra o almidón, sobre el metabolismo energético en vacas lecheras en pastoreo primaveral. Durante un período de 42 días se utilizaron 27 vacas Frisón Negro, seleccionadas por la producción de leche, días posparto, peso vivo, condición corporal y número de lactancias previas, las que fueron asignadas a 3 tratamientos en un dise o completamente al azar. Los tratamientos consistieron en solo pastoreo (TP), pastoreo más 6 kg/vaca/día de un concentrado amiláceo (TA) y pastoreo más 6 kg/vaca/día de un concentrado fibroso (TF). El concentrado se entregó en dos raciones de 3 kg durante las orde a de la ma ana y de la tarde y las vacas fueron manejadas en pastoreo rotativo en franjas sobre una pradera consistente principalmente de gramíneas. De cada animal se obtuvieron 6 muestras de sangre con heparina y NaF, con un lapso de 7 días, para determinar las concentraciones plasmáticas de OH-butirato, urea, albúminas y glucosa. Las vacas del grupo TA presentaron concentraciones de glucosa superiores y de OH-butirato inferiores a las del grupo TP y TF (P < 0,05). El grupo TP presentó un 44% de cetosis subclínica no observándose casos en TA o TF. Las concentraciones de urea fueron inferiores (P < 0,05) en TA que en TP (P < 0,05). Las concentraciones plasmáticas de albúminas no variaron entre los tratamientos (P > 0,05). Se concluye que la suplementación con concentrado energético amiláceo favorece el balance energético en vacas en lactancia a pastoreo, y que la suplementación con concentrado energético amiláceo o fibroso aumenta el aprovechamiento del nitrógeno de la pradera, disminuyendo la concentración de urea plasmática y el riesgo de presentación de cetosis subclínica. The objective of the study was to evaluate the effect of supplementation with starch or fibre-based concentrates on blood metabolites in dairy cows fed spring pasture. Twenty seven lactating Friesian cows producing 30.0 L/day were assigned to completely randomized design for 42 days. The treatments included: Grazing alone (TG), grazing plus 6 kg/d of sugar beet pulp-based concentrate (TA) and grazing plus 6 kg/d of cereal-based concentrate (TF). The cows were supplemented twice a day and managed under a strip grazing system on pasture consisting mainly of perennial ryegrass. Six coccigeal blood samples from each cow were obtained for seven consecutive days after the morning milking in vacuum tubes containing sodium heparin and sodium fluoride. Plasma was separated after
Rumenocentesis dorsomedial: un procedimiento seguro para la obtención de líquido ruminal en vacas lecheras a pastoreo Dorsomedial rumenocentesis: a safe procedure for collecting ruminal fluid samples from grazing dairy cows
M Noro,P Sepúlveda,F Cárdenas,RH Chihuailaf
Archivos de medicina veterinaria , 2013,
Abstract: Los objetivos del estudio fueron 1) comparar valores de pH de muestras de líquido ruminal (LR) obtenidas mediante rumenocentesis dorsomedial, sonda ororruminal, y directamente del rumen y 2) evaluar la efectividad de la rumenocentesis dorsomedial, mediante dos experimentos en vacas Holstein-Frisian en lactancia mantenidas a pastoreo. Experimento 1: en cuatro vacas fistuladas se obtuvieron muestras de LR a las 8:30, 13:30 y 17:30 horas mediante sonda ororruminal y por cánula ruminal (sacos caudoventral, caudodorsal, craneoventral y craneodorsal); además, de otra muestra obtenida a las 17:30 horas mediante rumenocentesis dorsomedial. Los pH del LR obtenidos mediante rumenocentesis y del saco caudoventral fueron similares y correlacionados (r = 0,77). Experimento 2: a 30 vacas Holstein-Frisian en lactancia y mantenidas en pastoreo se realizó una rumenocentesis dorsomedial cada cinco días, durante un mes, para evaluar la eficiencia del procedimiento y sus eventuales efectos en la salud y producción. En las 150 rumenocentesis ejecutadas se obtuvo una muestra de LR adecuada para determinar su pH (> 3mL), con manifestaciones de rechazo más bruscas en los primeros procedimientos. No se produjeron alzas térmicas o disminución de la producción láctea y en la zona de punción solo se apreció un aumento de volumen temporal de 1-1,5 cm en 4% de las vacas. Se concluye que la rumenocentesis dorsomedial es una técnica práctica y segura para la obtención de una muestra representativa del LR, pudiendo ser utilizada para la determinación del equilibrio ácido base ruminal en condiciones de pastoreo. Two experiments were carried out to 1) compare pH values of rumen fluid samples (RF) obtained from dairy cows by dorsomedial rumenocentesis, a probe and permanent cannula and 2) to evaluate the effectiveness of the rumenocentesis and its effects on the health and performance of Holstein-Frisian grazing dairy cows. Experiment 1: Four lactating grazing Holstein-Frisian cows with a permanent rumen cannula were used. RF samples were obtained at 8:30, 13:30 and 17:30 hours, using a probe and the cannula (from caudoventral, caudodorsal, ventral and dorsal sacs). A RF sample was also obtained at 17:30 hours by dorsomedial rumenocentesis. pH of the samples obtained by rumenocentesis and from the caudoventral sac were similar and correlated (r = 0.77). Experiment 2: A dorsomedial rumenocentesis was performed in 30 grazing lactating Holstein-Frisian cows. The procedure was repeated every 5 days during one month and its effectiveness and effect on the health and performance of the cows wer
Evaluación de la oferta de pradera y tipo de concentrado sobre algunos parámetros ruminales en vacas lecheras en pastoreo oto al Evaluation of the herbage allowance and type of concentrate on some ruminal parameters of grazing dairy cows during autumn
J Sotelo,M Noro,F Wittwer,JP Smulders
Archivos de medicina veterinaria , 2012,
Abstract: El objetivo de este estudio fue determinar el efecto de la oferta de pradera y del tipo de suplemento concentrado sobre el pH y las concentraciones de nitrógeno amoniacal (N-NH3) y de ácidos grasos volátiles (AGV) en el rumen. Se utilizaron tres vacas fistuladas Frisón Negro Chileno. Las vacas fueron asignadas a un dise o factorial de 2 x 2: dos ofertas de pradera; alta (38,5 kg de MS/día/vaca) y moderada (25,5 kg de MS/vaca/día) y dos tipos de concentrados: base a maíz (A) y base a coseta de remolacha (F). Muestras de líquido ruminal fueron obtenidas después de 9 días de adaptación a la dieta midiendo el pH inmediatamente y la muestra remanente fue conservada para análisis de N-NH3 y AGV. El análisis estadístico se realizó con un modelo lineal mixto utilizando medidas repetidas. El aumento en la oferta de pradera no afectó el pH ruminal (P > 0,05), pero sí disminuyó (P < 0,05) la concentración ruminal N-NH3 (9,7 mmol/L y 18,2 mmol/L, para alta y moderada, respectivamente) y aumentó las concentraciones totales de AGV (48,5 a 62,6 mmol/L, para alta y moderada oferta de pradera, respectivamente). El concentrado basado en coseta de remolacha disminuyó significativamente el pH ruminal (de 6,19 a 6,07 para el concentrado base a maíz y base a coseta de remolacha, respectivamente) y aumentó las concentraciones de totales de AGV (48,5 mmol/L para el concentrado base a maíz y 62,6 mmol/L para concentrado base a coseta de remolacha), pero sin modificar las concentración de N-NH3 ruminal (P > 0,05). Se concluye que una alta oferta de pradera sincroniza más eficientemente la fermentación en rumen, al generar una menor cantidad de nitrógeno amoniacal y una mayor producción de ácidos grasos volátiles. La suplementación con cantidades moderadas de concentrado, independiente del tipo, mantiene el pH ruminal dentro de rangos normales. This study was undertaken to evaluate the influence of daily pasture allowance and concentrate type on ruminal pH, the ammonia nitrogen (N-NH3) and the volatile fatty acid (VFA) concentrations in the rumen of autumn-calving dairy cows in early lactation. Three Chilean Black Friesian cows fitted with ruminal cannulas where used. The four dietary treatments were a combination of two pasture allowances above ground level (moderate, 25.5 and high, 38.5 kg of dry matter/cow/day) and two concentrate types offered at the level of 5 kg/cow/day, corn-based concentrate (A) and sugar beet pulp-based concentrate (F). After an adaptation period of nine days, liquor rumen samples were taken and pH was measured immediately. The remaining samples were pres
Morphometric analysis of the Brasiliorchis picta complex (Orchidaceae)
Pinheiro, Fábio;Barros, Fábio de;
Brazilian Journal of Botany , 2009, DOI: 10.1590/S0100-84042009000100003
Abstract: one of the largest genera of orchidaceae in the neotropics with about 450 species, maxillaria presents several taxonomic uncertainties about its generic circumscription and the delimitation of species groups, mainly due to the large variability of some species. the present study aims at verifying the morphological variation and species delimitation in the brasiliorchis picta complex, a recent new genus derived from maxillaria, using morphometric multivariate analysis. a total of 340 specimens belonging to six species (b. chrysantha (barb. rodr.) r.b. singer, s. koehler & carnevali, b. gracilis (lodd.) r.b. singer, s. koehler & carnevali, b. marginata (lindl.) r.b. singer, s. koehler & carnevali, b. picta (hook.) r. singer, s. koehler & carnevali, b. porphyrostele (rchb. f.) r.b. singer, s. koehler & carnevali and b. ubatubana (hoehne) r.b. singer, s. koehler & carnevali) were analyzed using multivariate methods (pca, cva, da, and cluster analysis with upgma). b. gracilis shows the largest morphological discontinuity, mainly due to its smaller size. the other species tend to form distinct groups, but intermediate characteristics between pairs of species induce overlaps among the individuals of different species and thus confuse the distinction of each one. hybridization and geographic distribution can be involved in the differentiation of the species and lineages in this complex. because the species classified a priori in this work cannot be recognized by the quantitative characters measured here, such other tools as geometric morphometry and molecular data should be employed in future works to clarify species relationships in this complex.
Novas combina??es, novas ocorrências e notas sobre espécies pouco conhecidas, para as orquídeas do Brasil
Barros, Fábio de;
Acta Botanica Brasilica , 1994, DOI: 10.1590/S0102-33061994000100002
Abstract: two new combinations are proposed for brazilian orchids: cyrtopodium polyphyllum (veil.) pabst ex f. barros and pseudolaelia canaanensis (ruschi) f. barros. maxillaria perparva garay & dunsterv. is reported for the first time for brazil. illustration of maxillaria friedrichsthalii rchb. f. and platystele ovalifolia (focke) garay & dunsterv., two species seldom collected in brazil, are given.
Diversidade taxon?mica e distribui??o geográfica das Orchidaceae brasileiras
Barros, Fábio de;
Acta Botanica Brasilica , 1990, DOI: 10.1590/S0102-33061990000100013
Abstract: orchidaceae is one of the largest plant families, and each of its subfamilies have a delimited distribution. the genus laelia, with 7 subsections, 5 of which occuring in brazil, shows interestingly evolutionary characteristics. laelia sect. parviflorae, which occurs mainly in minas gerais (brazil) is an example of "explosive evolution" still in process. the taxonomic treatment of the orchid family is not uniform from taxa to taxa which leads to many small genera in some groups and few large genera in some other groups.
Notas taxon?micas para espécies brasileiras dos gêneros Epidendrum, Platystele, Pleurothallis e Scaphyglottis (Orchidaceae)
Barros, Fábio de;
Acta Botanica Brasilica , 1996, DOI: 10.1590/S0102-33061996000100011
Abstract: one new combination is proposed in the genus epidendrum l.: e. secundum var. albescens (pabst) f. barros; three species are reported for the first time for brazil: platystele stenostachya (rchb. f.) garay, pleurothallis blaisdellii s. wats, and pleurothallis navicularis lindl. hexadesmia cearensis (griseb.) schultes is proposed as a new synonym of scaphyglottis fusiformis (griseb.) schultes. an illustration of epidendrum dichaeoides carnevalli & romero is presented.
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