bluuebunny/crossref_metadata_2025 huggingface dataset:
Subclinical laminitis and its association with pO2 and faecal alterations: Isikli, Aydin experience
Authors: Akin Ibrahim , Alic Ural Deniz , Gultekin Mehmet , Ural Kerem
Published: July 2017

ABSTRACTObjective. The aim of this field trial was to investigate the relationships among subclinical laminitis, hematological, ruminal and faecal alterations. Materials and Methods. To this extent dairy cows presenting subclinical laminitis (n=11) and to those of other healthy cows without laminitis (n=10) were enrolled and assigned into two groups. All animals were receiving the same daily ration formulated to contain 47% cornsilage and 18% hay, mainly. Effects of subclinical laminitis challenges on measurements of feces, and blood samples, were investigated to determine which of these measurements may aid in the diagnosis. pH changes in ruminal fluid collected via rumenocentesis were measured. Besides the following parameters were also measured; blood pH, faecal pH and faecal scoring. Blinded investigators performed the sample collection. Results. No statistical differences between the groups were detected for blood gas values studied regarding pCO2, HCO3, BE, indeed mean that pO2 values decreased statistically (p<0.05) and faecal pH was significantly decreased (p<0.05) in cows with subclinical laminitis in contrast to healthy controls. Conclusions. pO2 values and faecal pH may be valuable as indirect indicators of subclinical laminitis in cattle.RESUMENObjetivos. El objetivo de esta prueba de campo fue investigar las relaciones entre la laminitis subclínicay alteraciones hematológicas, ruminales y fecales. Materiales y métodos. Las vacas lecheras que presentaron laminitis subclínica (n=11) y las vacas sanas sin laminitis (n=10) fueron reclutadas y asignadas en dos grupos. Todos los animales recibieron la misma ración diaria que contenía 47% de ensilaje de maíz y 18% de heno, principalmente. Los efectos de la laminitis subclínica sobre las mediciones de las heces y muestras de sangre, fueron investigados para determinar cuál de estas mediciones pueden ayudar en el diagnóstico. Se midieron los cambios de pH en el fluido ruminal recogido a través rumenocentesis. Además, también se midieron los siguientes parámetros; pH de la sangre, el pH fecal y la puntuación fecal. La toma de las muestras se realizó a doble ciego. Resultados. No se detectaron diferencias significativas entre los grupos para los valores de los gases sanguíneos estudiados en relación con la pCO2, HCO3, BE; lo que significa que los valores de pO2 disminuyeron estadísticamente (p<0.05) y que el pH fecal se redujo significativamente (p<0.05) en las vacas con laminitis subclínica; en contraste con los controles sanos. Conclusiones. Los valores de PO2 y pH fecal pueden ser valiosos como indicadores indirectos de la laminitis subclínica en el ganado.
Fribrinolytic activity and gas production by Pleurotus ostreatus-IE8 and Fomes fomentarius - EUM1 in bagasse cane
Authors: Sánchez-Santillán Paulino , Meneses-Mayo Marcos , Miranda-Romero Luis , Santellano-Estrada Eduardo , Alarcón-Zúñiga Baldomero
Published: July 2017

ABSTRACT Objective. To characterize the fibrolytic enzymatic activity of Pleurotus ostreatus-IE8 and Fomes fomentarius-EUM1 in sugarcane bagasse (BCA); to evaluation of the kinetics of in vitro production of BCA treated by solid fermentation (FS), crude enzyme extract (ECE) of P. ostreatus-IE8 and Fibrozyme®. Materials and methods. In fungi measured radial growth rate ( Vcr ) and biomass production in two culture media (with or without nitrogen source); activity of xylanases, cellulases and FS on BCA at 0, 7 and 15 d. The chemical analysis and kinetic analysis of in vitro gas production in 4 treatments (ECE adding enzymes obtained from the direct addition FS or FS ), witness (Fibrozyme®) and a control without addition and analyzed by a was completely randomized design. Results. Xylanases (7 d ) showed 6.32 and 5.50 UI g-1 initial substrate dry weight (SSi) for fungi P. ostreatus-IE8 and F. fomentarius-EUM1 , respectively ; P. ostreatus-IE8 scored higher activity of laccases (10.65 g -1 UI SSi) and F. fomentarius-EUM1 (1.90 UI g-1 SSi) cellulases. The ECE of P. ostreatus-IE8 and commercial enzyme did not differences (p>0.05). In the chemical composition or the gas production kinetics. The 4 treatments evaluated decreased values of the variables measured in the kinetics of gas production compared to the control (p≤0.05). Conclusions. The ECE of P. ostreatus-IE8 was similar to commercial enzyme degradation in vitro, so it is feasible to use pre-digest high fiber products.
Evaluation of macrominerals concentrations in blood of lactating and dry Desi cows
Authors: Khan Zafar Iqbal , Bayat Alireza , Ahmad Kafeel , Sher Muhammad , Mukhtar Muhammad Khalid , Hayat Zafar , Tufarelli Vincenzo
Published: July 2017

ABSTRACTObjective. This study was conducted during winter season at rural livestock farm of district Sargodha, Pakistan, in order to define the macrominerals status in blood plasma of lactating and dry Desi breed cows . Material and methods. Twenty lactating and twenty dry cows were used and their blood plasma was analyzed for Ca, Mg, Zn, Cu and Fe using atomic absorption spectrophotometer. Results. In lactating cows, the plasma Ca concentration was lower than dry cows (6.8 vs. 7.6 mg/dl, p<0.001), while Mg concentration was similar between lactating and dry cows. Plasma Zn concentration in lactating cows was higher than dry cows (0.78 vs. 0.60mg/l, p<0.01) and it resulted lower than the normal range in both groups. Plasma Cu level in lactating cows was lower than dry cows (0.56 vs. 0.76 mg/L, p<0.001) and it was lower than the normal range only in lactating cows. Lactating cows resulted in higher plasma Fe concentration compared to dry cows (3.8 versus 2.6 mg/L; p<0.01). Conclusions. From our findings, it can be concluded that the observed minerals level meets the needs of ruminants and the plasma level of different minerals is affected by the physiological stages of cows.RESUMENObjetivo. Este estudio se realizó durante la estación de invierno en la granja de ganado rural del distrito de Sargodha, Pakistán, con el fin de definir el estado de macrominerales en el plasma sanguíneo de vacas lactantes y secas de raza Desi. Materiales y métodos. Veinte vacas lactantes y veinte vacas secas fueron utilizadas y se analizó el plasma para el Ca, Mg, Zn, Cu y Fe utilizando un espectrofotómetro de absorción atómica. Resultados. En las vacas lactantes, la concentración de Ca en plasma fue menor que en las vacas secas (6.8 frente a 7.6 mg/dl, p<0.001), mientras que la concentración de Mg fue similar entre las lactantes y las vacas secas. La concentración plasmática de Zn en las vacas lactantes fue mayor que en las vacas secas (0.78 frente a 0.60 mg/L, p<0.01) y resultó inferior al rango normal en ambos grupos. Nivel de plasma de Cu en vacas lactantes fue inferior al de las vacas secas (0.56 vs a 0.76 mg/L, p<0.001) y fue inferior al rango normal sólo en las vacas lactantes. Las vacas lactantes resultaron en mayor concentración de Fe plasmático en comparación con las vacas secas (3.8 frente a 2.6 mg/l, p<0.01). Conclusiones. A partir de los resultados, se puede concluir que el nivel de minerales observados satisface las necesidades de los rumiantes y el nivel plasmático de diferentes minerales se ve afectado por las etapas fisiológicas de las vacas.
Maternal-calf relationships and their influence on calves up to 120 days
Authors: Souza-Conde AL Emanoela , V. Andrea María , Conde L Marcy , Delgado-Mendez Jesus , Souza Fagner C. , Paranhos da Costa JR Mateus , Paranhos da Costa JR Mateus , De Bittencourt dos SC Thereza CB , De Oliveira N Kaliane
Published: July 2017

Objectives. To research parental behavior and measure the weight of Nelore and Guzerat calves up to 120 days of age, collecting data from birth up to the first lactation. Materials and methods. Seven different corporal positions were considered to obtain specific data for each of the following categories: time to stand (TP), time to intend to feed after standing (TPTM), weight at birth (PN), weight at 120 days (P120), and time in contact with the calf (TCC). Additionally, independent variables were also evaluated, organized by class: weight at birth (CPN), number of calvings (CNP), order of calving in relation with the herd (CLPR), time of calving (CHP), and finally, hindering to feed (CTAT). Results. There was a significant result in favor of the Nelore race over the Guzerat race. The statistical averages for Nelore and Guzerat were: Time to stand averaged 71 and 153 minutes; time to intend to feed after standing, 39 minutes for Nelore and of 114 minutes for Guzerat. For variable weight at 120 days, Nelore reached an average of 122 kg, and Guzerat 109 kg. For the time in contact with the calf variable there was no significant variance between races. Conclusions. Results showed the superiority of the Nelore race, considering it better adapted to local environmental conditions. Key words: Behavior, calves, suckling, well being (Source: CAB).
The search for the mdr1-1Δ mutation of the MDR1 gene in four canine breeds in Uruguay (preliminary study)
Authors: Gagliardi B Rosa , Martínez A Diana , Tellechea H Beatriz , Sitjar Q Pedro , Llambí D Silvia , Arruga L María
Published: July 2017

Objective. The objective of this study is to analyze the frequency of mdr1-1Δ mutation in German Shepherd, Doberman, Border Collie and Greyhound dog breeds in Uruguay. Materials and methods. A total of 95 animals from the four breeds mentioned above were studied. DNA was isolated from blood using potassium acetate with a subsequent degradation from RNA with RNAsaH. The concentration and quality of the DNA obtained was evaluated with a Nanodrop, ND-1000 spectrophotometer. To determine the presence or absence of the mdr1-1Δ mutation, DNA samples were sent to Gene Seek, Neogen Corporation of Chicago, United States, for genotyping. Results. In all 95 animals studied, the mdr1-1Δ mutation was not present. Conclusions. Based on the preliminary results obtained, other elements that may cause adverse drug reactions must be considered: unidentified mutations in other regions of the MDR1 gene; mutations in other genes involved in the transport of drugs from the same subfamily or another; mutations in enzymes involved in drug metabolism (e.g. Cytochrome P450). Moreover, especially with Border Collies and Greyhounds, it is advisable to increase the number of animals in the study.Key words: Dogs, ivermectine, P-glycoprotein (Source: CAB).
Possibility of culturing Pacific goliath grouper Epinephelus quinquefasciatus in water with different salinities
Authors: García N Lury , Chapman Ch Frank
Published: July 2017

Objective. To assess the survival and growth of juvenile Pacific goliath grouper (Epinephelus quinquefasciatus) in captivity at low salinities. Materials and methods. We randomly selected twelve juvenile goliath groupers with an average standard length of 44.2 ± 6.1 cm and 1492 ± 476 g in body weight, and raised them for three months in the laboratory in waters of 32-26, 20, 10 and 5 parts per thousand of salinity. Results. All juvenile Pacific goliath groupers tolerated the initial gradual transfer from full strength seawater to salinities of 32-26, 20, 10, and 5 parts per thousand, which was done over a period of four days. All of them survived and grew in body weight and length during the course of the three-month experiment, in all the treatments of high and low salinity water. The body condition factor (K) for each fish was between 1.5 and 2.4. Conclusions. This is a first time trial that documents a randomized, controlled experiment demonstrating the ability of Pacific juvenile goliath grouper to gradually transfer from full strength seawater to water of lower salinity, and survive and grow well in these brackish waters.Key words: Aquaculture, euryhaline species, osmoregulation, water salinity (Source: BNA, NAL).
Terminal leptospirosis in a woolly monkey (Lagothrix lagothricha) in Colombia
Authors: González A Viviana , Peña S Juliana , Bustamante R Javier , Astudillo H Miryam
Published: July 2017

A captive woolly monkey (Lagothrix lagothricha) displayed severe lethargy, vomiting and diarrhea. Laboratory tests revealed anemia, leukopenia, hypoproteinemia, severe azotemia and positive Leptospira IgM ELISA. The monkey was humanely euthanized and the necropsy revealed a multifocal tubulointerstitial glomerulonephritis; in addition to splenic lymphoid depletion, and interstitial pneumonia, all of which are compatible with leptospirosis. Rodent control and biosecurity measures should be done at all zoological collections in order to prevent transmission to facility personnel and to threatened mammals maintained in captivity.Key words: Epidemiology, leptospira, primate, zoo (Source: DeCS).
Ebola… How far away are we?
Authors: Mattar Salim , González T Marco
Published: July 2017

Hollywood adores an infectious disease film. One of the most shocking was the 1995 film “Outbreak”, in which Dustin Hoffman and Rene Russo worked to stop a fictional virus similar to Ebola. In the movie the virus is introduced from Africa to the US by a monkey. In another film, “28 Days Later,” a virus from experimental monkeys infects humans in London. Several additional films about the human fear of “killer viruses” have been released. A real-life scare to the US and the western world came when two American Ebola patients were recently transported from West Africa to an Atlanta hospital for treatment. Currently, there is a pervasive public fear of the dissemination of Ebola in the US and the rest of the world.
Determination of microbiological and sensory parameters of fish fillets with propolis preserved under refrigeration
Authors: Suarez M Héctor , Jiménez T Álvaro , Díaz M Consuelo
Published: July 2017

ABSTRACTObjective: To determine the ability of propolis preservative cachama fillets during refrigerated storage. Materials and method. Ethanol extracts of propolis (EEP) were used in cachama fillets. The treatments included: i) 96% ethanol alcohol as the control; ii) 0.8% EEP; iii) 1.2% EEP; and iv) liquid smoke. A in vitro analysis was used to determine the inhibitory effect of propolis on Staphylococcus aureus, Escherichia coli, Salmonella sp. and Clostridium sp. and on the fish matrix to determine the mesophiles, psychrotrophiles, total coliforms, fecal coliforms, sulphite reducing spores and the presence of Salmonella. Results. The results of the in vitro analysis demonstrated the control that the EEP had over the evaluated microorganisms without presenting significant differences between the different concentrations (p>0.05). The analyses of the fish fillet matrix presented acceptable contents for the evaluated microorganisms in the treatments with EEP. A different situation was seen in the treatment with liquid smoke and the control, which had samples that where rejected after 20 days of storage. The sensory analysis showed acceptance for the samples with EEP until the end of the storage period but low marks for the treatment with liquid smoke and the control. Conclusions. The EEP used in this study could be effective for the control of Gram positive bacteria and some Gram negative bacteria that are present in cachama fillets; and could be an alternative to the use of chemical preservatives.
Association of the bovine growth hormone gene with Holstein cattle reproductive parameters
Authors: Arango G Juliana , Echeverri Z Julián , López H Albeiro
Published: July 2017

ABSTRACTObjective. To determine the association of intron 3 polymorphism of the bovine growth hormone (BGH) gene, with age at first service, first birth, first postpartum service and second birth in a population of Holstein cows in the state of Antioquia. Materials and methods. The study was conducted on 408 Holstein cows in 8 herds. Genotyping was performed using PCR-RFLP technique with DNA extracted from peripheral blood by the salting out technique. The Phenotypic information used was collected for 4 years, from a dairy production control program. To determine the association between characteristics and gene polymorphism, parametric statistical analyzes were performed as generalized linear models and linear regression analysis. Results. Allele frequency (positive) was 0.91 and was 0.09 for (negative) allele. Genotypic frequencies were 0.77, 0.2 and 0.03 for (positive/positive), (positive/negative) and (negative/negative) respectively. There were significant differences between the mean of age at first service, age at first birth, age at first postpartum service and age at second birth. For all of the (negative/negative) genotype characteristics there were greater ages for each event. Conclusions. These results suggest that intron-3 polymorphism of the BGH gene is associated with reproductive traits, facilitating the selection of individuals with favorable genotypes for use in breeding programs.
Prevalence of stereotypies in thoroughbred race horses at Club Hípico Concepción, Chile
Authors: Muñoz A Lisandro , Ainardi C Felipe , Rehhof V Christian , Cruces L Jaime , Ortiz R Reinaldo , Briones L Mario
Published: July 2017

ABSTRACTObjective. To determine the prevalence of classic stereotypies in Thoroughbred racehorses at the Club Hípico Concepción (CHC) in Chile and its association with sex and age. Materials and methods. The entire population of resident horses at the CHC was studied (n=341). Each horse trainer (n=23) was asked for the name, sex and age of the horses under his/her supervision. After that, all the animals were continuously observed inside their stalls for 8 hours by only one person, to record the absence or presence of classic stereotypies (cribbing, weaving, stall-walking). To analyze the data, the animals were divided by sex into 3 groups: stallions, geldings and mares. According to age, they were divided into 2 groups: < 5 years old and 5 years old or more. Descriptive statistics were used and association was tested using the chi square test using p≤0.05. Results. 13.2% of all CHC’s horses displayed stereotypies: cribbing (4.99%), weaving (2.93%) and stall-walking (5.28%). No association was found between the presence of stereotypies and sex or age. Conclusions. Thoroughbred race horses at the CHC showed a high prevalence of classic stereotypies, especially stall-walking.
Blood biochemical parameters of broilers fed differently thermal processed soybean meal
Authors: Nahavandinejad Mojgan , Seidavi Alireza , Asadpour Leila , Payan-Carreira Rita
Published: July 2017

ABSTRACTObjective. A 42-days feeding trial was carried out to evaluate the influences of differently thermal processed soybean meal on the broilers blood biochemical parameters. Materials and methods. A total of 200 male birds of Ross strain were allocated into five different diets formulated using differently heat-treated soybean meals, with ten birds per treatment and per replicate. Diets contained: raw soybean (controls), autoclaved for a short (121°C, 20 min; Aut1 group) or medium length period (121°C, 30 min; Aut2 group) soybean meal, micro-waved soybean meal (46°C, 540 Watt, 7 min; McW group) and browned soybean meal (120°C, 20 min; Brn group). Results. Blood serum metabolites showed that all treated diets presented lower lipid metabolism makers and higher protein metabolism markers. Broilers showed increased final body weight when fed heat-treated meals compared with control. Results suggested that thermal treatments altered the lipid metabolism in broilers that might originate a decrease in abdominal fat deposition. Conclusions. Comparison of the results for all the treated groups showed the Aut2 treatment is the most suitable method for soybean thermal treatment processing; in contrast, the Aut1 treatment had the closest results to the control group.
Efecto de la carga animal y el tipo de piso sobre el rendimiento, la temperatura de la piel y leucograma en la cría de cerdos
Authors: Diovani Paiano  , Ivan Moreira  , Arley R.B. Quadros  , Natalia Cristina Milani  , Maria Luisa A. Nunes Z  , Gustavo Machado  , Aleksandro S. Da Silva
Published: July 2017

Objetivo. El objetivo de este estudio fue evaluar el rendimiento, las características de termorregulación, y el leucograma de cerdos de engorde, criados en diferentes densidad mantenidos en corrales de piso compactos o en piscinas de poca profundidad. Material y métodos. Treinta y seis cerdos se utilizaron en dos etapas (un total de 72 animalles utilizados). En el primer paso, se analizaron las características zootécnicas (consumo diario de alimento, ganancia de peso y alimento: ganancia) y el espesor de grasa dorsal (P2). En el segundo paso, los mismos análisis se repitieron, además, el análisis de leucograma y temperatura de la piel se realizó en P2 y la región anal, al final del crecimiento y del acabado de fase. Resultados. Se evaluaron las diferencias entre los tratamientos y media. No se encontró efecto del tipo de suelo en fase de crecimiento, pero el uso de la piscina de poca profundidad tuvo un efecto negativo sobre la ganancia y la alimentación: ración de ganancia en la fase de acabado. El aumento de efecto lineal de espesor de grasa dorsal como la tasa media se redujo, así como una menor temperatura de la superficie en la región anal en el tratamiento con piscina de poca profundidad en la fase de acabado. No hubo efecto de los tratamientos y tipo de suelo sobre el Leucograma de los cerdos. Permitiendo más espacio/animal disminuyó el espesor de grasa dorsal. El uso de la piscina de poca profundidad afectó negativamente al rendimiento en la fase de acabado. Conclusiones. El uso de la piscina de poca profundidad afectó el rendimiento de los cerdos de acabado, a pesar de la mejora de termólisis, sin efecto visible en la respuesta inmune celular.
Pythiosis cutánea en equinos tratados con acetonida de triamcinolona. Parte 2. Descripción histológica e histoquímica
Authors: Cardona-Álvarez José , Vargas-Vilória Marlene , Patarroyo-Salcedo Joaquín
Published: July 2017

Objetivo. El objetivo del estudio fue realizar una descripción histológica e histoquímica del proceso de cicatrización de la pythiosis cutánea en equinos tratados con acetonida de triamcinolona. Materiales y métodos. Se Realizó un estudio de tipo descriptivo, no probabilístico en animales de conveniencia con pythiosis cutánea. Fueron utilizados 24 equinos con pythiosis, siendo aplicado 50 mg de acetonida de triamcinolona vía intramuscular a un grupo de 12 animales (GT) y en otro grupo no fue aplicado tratamiento (GC). Se realizaron biopsias de tejidos para evaluación histológica e histoquímica, en las coloraciones de hematoxilina eosina (H&E), tricrómico de Gómori (TG), picrosirius red/polarization (PR/P) y plata metanamina de Grocott (GMS). Resultados. Se observó que en el GT el proceso inflamatorio fue disminuyendo progresivamente, evidenciado en la disminución de la capa fibrino leucocitaria, PMN y de los fenómenos de Splendore Hoepli, así como mayor angiogénesis, epiteliogénesis y aumento de la cantidad de fibroblastos y fibras colágenas generales, así mismo en el cambio progresivo de colágeno tipo III a colágeno tipo I al final del proceso, además de que la presencia de hifas intralesionales de Pythium insidiosum disminuyó a la segunda semana. Ninguno de los animales del GC presentó mejoría en las características histológicas e histoquímicas de la pythiosis y se mantuvieron iguales al primer día durante todo el estudio. Conclusiones. La acetonida de triamcinolona es una buena alternativa terapéutica en el tratamiento de las heridas granulomatosas por pythiosis en equinos con 100% de recuperación clínica y demostrada con las constataciones histológicas e histoquímicas.
Validación de modelos con sesgo proporcional
Authors: Medina-Peralta Salvador , Vargas-Villamil Luis , Colorado-Martínez Luis , Navarro-Alberto Jorge
Published: July 2017

Objetivo. En este trabajo se presentan extensiones al método estadístico de Freese para validar modelos con sesgo proporcional (SP) en sus predicciones y se ilustra el método con datos provenientes de un modelo de simulación de crecimiento de praderas. Materiales y métodos. Las extensiones para validar un modelo con SP fueron: el error máximo anticipado para el planteamiento original, la prueba de hipótesis y error máximo anticipado para el planteamiento alternativo, y el intervalo de confianza para un cuantil de la distribución de los errores. Resultados. El modelo evaluado presentó SP, una vez removido y con un nivel de confianza del 95% la magnitud del error no sobrepasa 1225.564 kg ha-1. Por lo que el modelo validado podría usarse para predecir el crecimiento de praderas, sin embargo, requerirá un ajuste en su estructura con base a la presencia de SP. Conclusiones. Las extensiones presentadas para validar modelos en presencia de SP se aplican sin que el modelo sea modificado en su estructura. El intervalo de confianza para el cuantil 1-α de la distribución de los errores una vez que se corrige el SP, permite determinar una cota superior para la magnitud del error de predicción y usarla para evaluar la evolución del modelo en predicción del sistema.
Efecto de microorganismos probióticos aislados de Hypostomus plecostomus en juveniles de Oreochromis sp
Authors: Vela-Gutiérrez Yuri , Contreras-Rojas Mayra , Suarez-Suarez Lady
Published: July 2017

Objetivo. El objetivo del estudio fue evaluar el comportamiento de juveniles de tilapia roja (Oreochromis sp.) frente a los posibles microorganismos probióticos aislados del tracto gastrointestinal del pez panche (Hypostomus plecostomus). Materiales y métodos. En la fase de evaluación del probiótico, se seleccionaron 120 juveniles de Tilapia roja (Oreochromis sp) con un peso promedio de 1.28±0.22 g y una longitud promedio de 2.99±0.27 cm. Se formularon tres tratamientos experimentales teniendo en cuenta las necesidades nutricionales de la tilapia roja (Oreochromis sp.). El modelo estadístico que se empleó fue un diseño completamente al azar. Resultados. Las tres cepas del género Lactobacillus (Lactobacillus plantarum, Lactobacillus pentosus, Lactobacillus rhamnosus) aisladas del tracto digestivo del H. plecostomus, dieron resultados diversos en las variables biométricas consideradas, así como en la TCE, TEP, EA y CA. Conclusiones. Los mejores reportes en cuanto a ganancia en longitud fueron para el tratamiento con el probiótico nativo y se deduce que se establecieron con facilidad en el intestino del pez (Oreochromis sp.) se determinó que si existen diferencias significativas en los resultados de ganancia de longitud, para Concentrado Control (CC) vs., Concentrado más Probiótico Nativo (CPN) para Tilapia roja (Oreochromis sp.) en la etapa de juveniles por un período de 30 días.
Abundancia de paloma doméstica (Columbia livia domestica Gmelin, 1789) en Santiago de Tolú, Sucre, Colombia
Authors: De La Ossa V Jaime , De La Ossa-Lacayo Alejandro , Monroy-Pineda María
Published: July 2017

Objetivo. Determinar la abundancia poblacional y fuentes de alimentación de C. livia domestica en la ciudad de Santiago de Tolú, Sucre, Colombia. Materiales y métodos. Se trabajó durante 6 meses: enero-marzo y septiembre-noviembre de 2015, en época seca y época lluvias, entre las 06:00 y las 08:00 horas, con conteos cronometrados se aplicó el método de muestreos en punto fijos en cuatro lugares de la ciudad; igualmente se hicieron medidas de los niveles de ruido existente en el área de trabajo. Resultados. La población total fue de 185 individuos, con una densidad bruta de 7.71 ind/ha (5.9-9.0). Se obtuvo diferencia significativa (p<0.01) entre las 4 poblaciones estudiadas, se observó que la principal fuente de alimentación son residuos de comida humana depositados como desechos urbanos, al comparar los volúmenes de desechos disponibles y la densidad en cada sitio se observa que existe relación directa. No se determinan diferencias poblacionales significativas entre las dos épocas del año estudiadas. Los niveles sonoros oscilaron entre 40.3-72.1 dB. La densidad calculada es menor al compararla con otros estudios, pero sobrepasa la densidad establecida como nociva para esta especie en poblaciones urbanas; los niveles de ruido que soporta la población se establecen como altos y tolerables. Conclusiones. Teniendo en cuenta que C. livia domestica se reconoce como una especie considerada plaga urbana, porque transmite diversas enfermedades zoonóticas, afecta infraestructura y contamina alimentos mediante sus excrementos, el registro de su densidad, se convierte en una necesidad prioritaria para la salubridad pública.
Inflamación crónica granulomatosa en el pez teleósteo Piaractus mesopotamicus: modelo de estudio histopatológico
Authors: G Manrique Wilson , AP Figueiredo Mayra , Belo Marco AA , Martins Maurício L , Moraes Flávio R
Published: July 2017

Objetivo. Este estudio evaluó la cinética celular y la formación de granuloma durante la inflamación crónica inducida por el Bacilo Calmette-Guérin (BCG) en el músculo esquelético de Piaractus mesopotamicus, como modelo histopatológico para estudiar la inmunidad innata. Materiales y métodos. Sesenta peces fueron divididos en dos grupos: peces inoculados con BCG y no inoculados y la respuesta inflamatoria analizada en 3, 7, 14, 21 y 33 días post-inóculo (DPI) por medio del análisis histopatológico y tinciones de hematoxilina-eosina y Ziehl-Neelsen. Resultados. 3 DPI de BCG se observó reacción inflamatoria difusa principalmente formada por infiltrado celular mononuclear. Al 7° DPI la inflamación continuaba difusa con inicio de organización celular alrededor del inoculo, que se observó hasta el 14° DPI con discreta presencia de células de tipo epiteliodes con citoplasma acidófilo y cromatina laxa. Para el 21° DPI se observó alta organización celular alrededor del granuloma con intenso infiltrado mononuclear periférico e incremento en el número de fibroblastos y macrófagos. El proceso inflamatorio se tornó menos difuso a los 33 DPI con formación de pequeños granulomas contenidos dentro de uno más grande. Los granulomas formados más rápidamente así como los formados tardíamente, presentaron características típicas alrededor del inóculo compuesta por una camada de células tipo epitelioides, macrófagos, linfocitos y fibroblastos. Conclusiones. Este estudio mostró la viabilidad del uso del P. mesopotamicus para estudiar la respuesta inflamatoria crónica granulomatosa inducida con BCG, caracterizado por la evolución de la cinética de células inflamatorias en el músculo esquelético clasificándolo como de tipo inmune-epitelioide, similar a la inflamación granulomatosa causada por M. marinum en peces teleósteos.
Diagnosis of contagious ecthyma in goats in a quarantine station in Panama
Authors: Magaña Ch Angie , Kadoch Z Nathaniel , Sánchez P Anarvik , Maure M César , Tello J Rolando
Published: July 2017

ABSTRACTWe report an outbreak of contagious ecthyma (CE) in a herd of goats at Paso Canoas quarantine station, Panama. The goats were adult intact females. Visible clinical signs became apparent from day 13 after the start of quarantine. We performed clinical examination. Serum biopsy and scabs were collected from crusted lesions in the epithelium of the lips, nose and eyelid corners. Samples were studied by histopathology,complement fixation test, transmission electron microscopy (TEM), DAS-ELISA, viral isolationand nucleic acid amplification tests. Histopathology revealed ortho and parakeratotic hyperkeratosis, epithelial hyperplasia, viral inclusion bodies, keratinocytes with balonoid degeneration, vesicles with neutrophils and degenerated cells, in superficial dermis there is marked neovascularization. Complement fixation test, DAS-ELISA and nucleic acid amplification tests resulted positive for contagious ecthyma. TEM showed viral particles, consistent with Parapoxvirus. Clinical and laboratory findings were consistent with poxvirus infection in the quarantine goat herd
Limiares rurais nos processos de in(ter)venção da psicologia: narrando Lagoa Bonita do Sul
Authors: Kreutz José Ricardo
Published: July 2017

Esta narrativa é uma reorganização de uma palestra proferida em 24 de outubro de 2013 por ocasião da III JORNADA DE PSICOLOGIA - PSICOLOGIA NO ESPAÇO PÚBLICO: DESAFIOS E POSSIBILIDADES, em Volta Redonda/RJ, no Campus Aterrado da UFF – Universidade Federal Fluminense. Agora, em 2016, o texto apresenta a narrativa de uma experiência de construção de um serviço de psicologia em um município do interior do Rio Grande do Sul chamado Lagoa Bonita do Sul realizado entre 2003 e 2007. Esta narrativa compõe estudos preliminares de uma problemática de pesquisa sobre limiares que está sendo desenvolvida no grupo de pesquisa TELURICA – Territórios de Experimentação em Limiares Urbanos e Rurais: In(ter)venções em coexistências autorais.
Marcadores linguísticos de gênero nos discursos de sites educacionais
Authors: De Lira Luciano Paz
Published: July 2017

Este trabalho visa investigar e refletir sobre os marcadores de gênero presentes em páginas educativas na Internet, tomando como base teórica as contribuições da Análise do Discurso Francesa. Nosso corpus será constituído pelos textos de apresentação de três sites: o do Banco Internacional de Objetos Educacionais, o canal no Youtube do Ministério da Educação brasileiro e o Portal do professor.--- DOI: http://dx.doi.org/10.22409/cadletrasuff.2017n54a348
Cibertextos e hipertextos: a literatura na era digital
Authors: Kobs Verônica Daniel
Published: July 2017

Com base principalmente nos estudos de Lúcia Santaella, Winfried NÃ¶th e Luís Arata, este artigo analisa as mudanças ocorridas na literatura, em decorrência do uso do suporte eletrônico para a criação e leitura de textos literários. Sendo assim, serão analisados alguns cibertextos para exemplificar a função do movimento na literatura digital. Além disso, hipertextos serão apresentados, para enfatizar as várias opções de interação e leitura.--- DOI: http://dx.doi.org/10.22409/cadletrasuff.2017n54a381
O ciberespaço e o posicionamento ideológico em comentários on-line
Authors: Guilherme Maria Lígia Freire , Nunes Paula Avila
Published: July 2017

Buscamos relacionar as noções de ciberespaço, tecnologias e práticas sociaiscontemporâneas partindo da compreensão de que os espaços on-line permitem outras formas de expressão e interação, que contribuem para a formação e manutenção de identidades do sujeito. Para tanto, empreendemos uma análise dialógica, com base em Bakhtin, da interação entre usuários no campo de comentários de uma notícia de um grande portal de notícias.--- DOI: http://dx.doi.org/10.22409/cadletrasuff.2017n54a400
Sonhos na cibercultura: a transmidialidade a favor das narrativas seriadas
Authors: Silveira Jéssica de Oliveira da S.
Published: July 2017

Em 2003, Janet Murray já apontava a junção entre TV e Internet como o futuro das narrativas na cibercultura. Hoje, o que a autora chamou de formato hiperseriado é uma realidade, com o desenvolvimento de narrativas que se desdobram da TV para a web. Esse trabalho pretende observar, com base no seriado Malhação, da Rede Globo, e sob o prisma da teoria Semiótica, como se dá essa expansão da narrativa de uma mídia a outra.--- DOI: http://dx.doi.org/10.22409/cadletrasuff.2017n54a416
Apresentação
Authors: Sousa Silvia Maria de , Gomes Regina Souza
Published: July 2017

Apresentação ao número 54 dos Cadernos de Letras da UFF--- DOI: http://dx.doi.org/10.22409/cadletrasuff.2017n54a517
Corrigendum: Request that it is necessary to correct affiliations of the authors of the paper: Numerical model and experimental validation of the heat transfer in air cooled solar photovoltaic panel, https://doi.org/10.2298/TSCI16S4071R
Authors: Editorial E
Published: July 2017

Senthil Kumar RANGANATHANa*, Natarajan ELUMALAIb, and Puja Priyadharshini NATARAJANc aDepartment of Mechanical Engineering, Institute for Energy Studies, Anna University, Chennai, India bDepartment of Mechanical Engineering, KCG College of Technology, Chennai, India has to be written as: Senthil Kumar RANGANATHANa*, Natarajan ELUMALAIa, and Puja Priyadharshini NATARAJANb aDepartment of Mechanical Engineering, Institute for Energy Studies, Anna University, Chennai, India bDepartment of Mechanical Engineering, KCG College of Technology, Chennai, India

 Link to the corrected article 10.2298/TSCI16S4071R
STUDY SOME PROPERTIES OF LOCAL AND STORM DUST PHENOMENA IN BAGHDAD CITY
Authors: Aood Alaa Saadi , Jaddo Noor Hasssony
Published: July 2017

This investigation has been conducted to study some properties of local storm dust phenomena in Baghdad city. The monthly average of dust (g/m²)  in Baghdad  range from 10.2 g/m²  in Nov. to 43.7 g/m² in April.The local dust has a high Aerobic bacteria total count (Abtc) and O.M (% ) compare to the storm dust. This may be due to the contamination of dust particularly the local dust.The correlation  coefficients between Abtc (No./100ml) Organic Matter (O.M)%  and EC mmhos/cm, PH, Ca%,  Mg%, Na meq/100g, Na meq/100 g, K meq/100 g and dust, g/m²  have been done. The results indicate high relationships between Abtc ( No./ 100ml) Organic matter (O.M)%. The local dust (x) has high relationships with Abtc and O.M (% ) as examples. These  have the follow Equation s:1. O.M. % = 3.805 - 0.054 X, r =   0.9534,  describe the relation between O.M %  and the studied local dust(x). 2. Abtc  NO.  = -8.725E2 + 56.623 X, r =   0.7733, describe the relation between  Abtc  NO.  and the studied local dust(x). The local  dust  samples are more contaminated compare to the storm dust  samples in the city.
Synthesis, Characterization and Biological Activity of Some Mixed Ligand Complexes of 1, 10-Phenanthronline and [4-(2-hydroxy-1,2-diphenylethylideneamino)-N-pyrimidin-2-yl) benzene sulfonamide] with Divalent Metal Ions
Authors: Al-Shemary Rehab K. , Ibrahim Inam H. , Al-marsomy Nibras A.
Published: July 2017

Schiff base ligand [4-(2-hydroxy-1, 2-diphenylethylideneamino)-N-pyrimidin-2-yl)benzene sulfonamide] (L) was prepared through a condensation reaction of  sulfadiazine and benzoin in acidic medium. The prepared ligand has been characterized with different techniques (C.H.N.S, FT-IR, UV-Vis and 1H&13C-N.M.R). Mixed ligand complexes of some divalent metal ions [Co(II), Mn(II), Ni(II),Cu(II) and Hg(II)] were prepared by the  reaction of [4-(2-hydroxy-1,2-diphenylethylidene amino)-N-pyrimidin-2-yl)benzene sulfonamide](L)  and 1,10-Phenanthronline with the metal ions in basic conditions. The prepared complexes were characterized and their astrochemical structures and geometries were suggested depending upon data of (UV-Vis, FT-IR, atomic absorption, micro elemental analysis The following general formula was achieved : [M(PHN)(L)2], where  M represent  (Co(II)- Cu(II)-Mn(II)- Ni(II) and Hg(II)). Electronic spectra supported by magnetic moment's revealed octahedral geometries for all the prepared complexes. The mixed complexes showed resistivity to different bacteria such as(Pseudomonas aeruginosa), (Bacillus subtilis), (Escherichia coli), and (staphylococcus aureus).
A New Nonlinear Conjugate Gradient Method Based on the Scaled Matrix
Authors: Hassan Basim A. , Alashoor Haneen A.
Published: July 2017

In this paper, a new type nonlinear conjugate gradient method based on the ScaleMatrix is derived. The new method has the decent and globally convergentproperties under some assumptions. Numerical results indicate the efficiency ofthis method to solve the given test problems.
Nonlinear Optical Characteristics of Crystal VioletDye Doped Polystyrene Films by Using Z-Scan Technique
Authors: Hadi Mahasin F. , Alwaan Eman Mohi , Abass Wafaa Hameed
Published: July 2017

Z-scan technique was employed to study the nonlinear optical properties (nonlinear refractive index and nonlinear absorption coefficient) for crystal violet doped polystyrene films as a function of doping ratio in chloroform solvent. Samples exhibits in closed aperture Z-scan positive nonlinear refraction (self-focusing). While in the open aperture Z-scan gives reverse saturation absorption (RSA) (positive absorption) for all film with different doping ratio making samples candidates for optical limiting devices for protection of sensors and eyes from energetic laser light pulses under the experimental conditions.
Behaviorof Ion Beams For Triplet Quadrupole Lenses
Authors: Majed Hiyam Chasib , Kadhem Ameera Jawad , Abass Esraa Akram , Hameed Taghreed Khalid
Published: July 2017

This research includes a study to understand the behavior of charged particles beam through consideration of systems of quadrupole triplet reaching to the optimum design of beam transport through a system of triplet quadrupole triplet lenses. In this work, tracing the path of charged particles beam has been within the free field space and quadrupole electrostatic lens system which include the triplet quadrupolelens by using matrices to described particle trajectories throughout the system. Matrix representation deals with ion beam as bunched and representing phase ellipse for both horizontal and vertical planes. The present work investigated the effect of the main parameters of triplet quadruple such as length of quadrupole, the distance between the lenses, voltage applying on lenses,second field free region length. Matlab program built to study these parameters, the results indicated that good focusing properties for both horizontal and vertical plane.
Exploring Preschool Teachers' and Support Staff's Use and Experiences of Assistive Technology with Children with Disabilities
Authors: Tamakloe Deborah , Agbenyega Joseph Seyram
Published: July 2017

THIS QUALITATIVE CASE STUDY explored the professional philosophies and experiences of preschool teachers and their support staff regarding the use of assistive technology devices (ATDs) in an early intervention inclusive preschool class. Using face-to-face individual interviews as data collection measures, the researchers aimed to understand these practitioners' teaching philosophies and experiences in terms of how they use ATDs with young children with disabilities in their class. A framework analysis of data identified three themes: establishing values for inclusive education, maintaining positive attitudes to overcoming challenges and orchestrating inclusive learning. The paper concluded that in order for the use of ATDs to thrive and make full impact on all children's learning and development, stronger frameworks for developing the inclusive values, philosophies, professional knowledge and practice principles of preschool teachers and their support staff are needed.
Assessing Young Children's Learning: Using Critical Discourse Analysis to Re-examine a Learning Story
Authors: Krieg Susan
Published: July 2017

THE CURRENT POLICY CONTEXTS of many countries demand that early childhood educators are able to articulate their practice in new ways. For example, the need to assess and report positive learning outcomes in multiple ways to policy-makers, families and educational systems is a feature of contemporary early childhood education and care. This theoretical paper introduces a multi-dimensional framework to support the assessment of young children's learning and then provides an example of how modified tools drawn from Critical Discourse Analysis (CDA) can be used to effectively examine these dimensions of learning. CDA is a multidisciplinary methodology that integrates the study of language with a consideration of wider social practices. It offers a perspective from which to examine how ways of thinking, speaking, acting and being are drawn from, and also contribute to the particular discourses that are made available within social institutions (in this case, early childhood centres). CDA focuses on how language establishes and maintains social relationships and identities. This paper provides an example of how some of the tools made available in CDA can enhance assessment practices with young children. It is argued that CDA enables early childhood educators to re-examine young children's learning in new ways. The processes outlined in this paper have the potential to inspire early childhood educators to embrace assessment as an opportunity to articulate, celebrate and communicate young children's ways of knowing in new ways.
Hearing in the Early Childhood Setting: Children's Perspectives
Authors: McFarland Laura , Dealtry Lysa
Published: July 2017

THIS STUDY INVESTIGATED CHILDREN'S perspectives on their hearing during group activities in a preschool setting. A case study design framed by a children's participatory rights perspective was used. The sample included 69 children aged three to five years in a regional Australian preschool. Children completed self-report booklets about their hearing. Parents completed surveys indicating children's health conditions and identified hearing issues. Results suggest that children have most difficulty hearing while other children are talking and when sitting at the back of the mat, and that most children who report hearing difficulties during group time have not been formally identified with a hearing problem. Implications for ensuring children can hear optimally in early childhood group-time situations are discussed. Given the focus in past research on adults' reports of children's hearing, the importance of gaining children's perspectives of their hearing in the early childhood setting by using self-report methods is also discussed.
Asosiasi Antara Kemampuan Analogi Dengan Komunikasi Matematik Siswa SMP
Authors: Azmi Memen Permata
Published: July 2017

This research is a quantitative research with cross-sectional design that aims to examine the association between students 'mathematical analogy abilities with students' mathematical communication abilities. The subject of this research is 33 students of class VII in one of Junior High School of Kampar Regency of Riau Province. The instrument used is a essay test about the problem of mathematical analogy and mathematical communication. Data analysis techniques to test the association of both capabilities based on the category of contingency association test (Pearson Chi Square test and contingency coefficient). The results showed that this study was an association between students' mathematical analogy abilities with students' mathematical communication abilities. The degree of association between students 'mathematical analogy abilities with students 'mathematical communication abilities is high.
Analysis of Shaft Voltage in a Doubly-fed Induction Generator
Authors: Jafar Adabi  , Zare Firuz , Ghosh Arindam , D. Lorenz Robert
Published: July 2017

Fast switching transients and common mode voltage generated by pulse width modulated voltage in high frequency applications may cause many unwanted problems such as shaft voltage and resultant bearing currents. The main objective of this research work is to analyse shaft voltage generation in a doubly-fed induction generator (DFIG) with a back to back converter. A detailed high frequency model of the proposed system has been developed based on capacitive couplings between different objects of the machine. The proposed model can be used for shaft voltage calculations and finding parameters which have key effect on shaft voltage and resultant bearing currents. A discussion about the presented technique for shaft voltage elimination in existing literature is also presented based on mathematical analysis and simulations.
Considerations regarding testing of low voltage equipment endowed with contacts from composite materials type CMC
Authors: George Curcanu  , Ilie Sbora
Published: July 2017

Within paper there are presented tests performed on low voltage equipment endowed with contacts from composite materials type CMC and are described the electric circuits for tests at over-load and short-circuit currents according to actual IEC standard 60947 [1]. Also are presented experiments performed on low voltage contactor with CMC type contacts comparatively with those from classical copper-silver contacts
Modeling, Control and Simulation of a High-Current DC-DC Converter for Fuel Cell Applications
Authors: H. Y. Kanaan  , S. Georges  , I. Mougharbel  , N. Mendalek  , T. Nicolas
Published: July 2017

In this paper, a high-current two-stage DC-DC converter fed by a Proton Exchange Membrane Fuel Cell (PEMFC) is studied. The converter consists of two three-phase full-bridge inverters connected through three AC coupled inductors. The mathematical models of both converter and PEMFC are first presented, and a control scheme that ensures a high power factor at the AC stage and a regulated voltage at the DC load is then implemented. The performance of the proposed control system is verified through digital simulations.