995 resultados para 43-382
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Background: Changes in the roles of the contemporary pharmacist has seen a decline in the number and variety of extemporaneously compounded dosage forms. Pharmacy curricula reflect this change with a reduction in the emphasis on extemporaneous compounding practice. Aim: To elicit information about extemporaneously compounded dosage forms and perceptions of compounding practice from pharmacists and pharmacy students. Method: Self-administered surveys were mailed to 1063 pharmacists and offered online to 896 pharmacy undergraduates across the 4 years of a Bachelor of Pharmacy program in Queensland. Results: 382 (36%) pharmacists and 455 (51%) students completed the survey. Most pharmacists (96%) reported compounding a product in the 12 months prior to the survey, particularly semi-solids (89%) and liquids (64%) for external use. Most pharmacies (> 96%) owned basic compounding equipment, such as a slab and spatula, mortar and pestle, and cylindrical/conical measures. Half of the pharmacies used mechanical rather than electronic balances. Students expressed greater confidence in their ability to use basic compounding equipment and to perform basic compounding tasks as they progressed through the 4-year degree course. Pharmacists’ views on students’ ability to compound basic products at the end of their degree were generally similar to the proportion of final-year students who reported they could confidently complete the task. Conclusion: Despite a decline in extemporaneously compounded products in community pharmacy, pharmacy graduates need to be competent in compounding techniques.
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Aggregation and biofilm formation are critical mechanisms for bacterial resistance to host immune factors and antibiotics. Autotransporter (AT) proteins, which represent the largest group of outer-membrane and secreted proteins in Gram-negative bacteria, contribute significantly to these phenotypes. Despite their abundance and role in bacterial pathogenesis, most AT proteins have not been structurally characterized, and there is a paucity of detailed information with regard to their mode of action. Here we report the structure–function relationships of Antigen 43 (Ag43a), a prototypic self-associating AT protein from uropathogenic Escherichia coli. The functional domain of Ag43a displays a twisted L-shaped β-helical structure firmly stabilized by a 3D hydrogen-bonded scaffold. Notably, the distinctive Ag43a L shape facilitates self-association and cell aggregation. Combining all our data, we define a molecular “Velcro-like” mechanism of AT-mediated bacterial clumping, which can be tailored to fit different bacterial lifestyles such as the formation of biofilms.
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Dietary habits have changed during the past decades towards an increasing consumption of processed foods, which has notably increased not only total dietary phosphorus (P) intake, but also intake of P from phosphate additives. While the intake of calcium (Ca) in many Western countries remains below recommended levels (800 mg/d), the usual daily P intake in a typical Western diet exceeds by 2- to 3-fold the dietary guidelines (600 mg/d). The effects of high P intake in healthy humans have been investigated seldom. In this thesis healthy 20- to 43-year-old women were studied. In the first controlled study (n = 14), we examined the effects of P doses, and in a cross-sectional study (n = 147) the associations of habitual P intakes with Ca and bone metabolism. In this same cross-sectional study, we also investigated whether differences exist between dietary P originating from natural P sources and phosphate additives. The second controlled study (n = 12) investigated whether by increasing the Ca intake, the effects of a high P intake could be reduced. The associations of habitual dietary calcium-to-phosphorus ratios (Ca:P ratio) with Ca and bone metabolism were determined in a cross-sectional study design (n = 147). In the controlled study, the oral intake of P doses (495, 745, 1245 and 1995 mg/d) with a low Ca intake (250 mg/d) increased serum parathyroid hormone (S-PTH) concentration in a dose-dependent manner. In addition, the highest P dose decreased serum ionized calcium (S-iCa) concentration and bone formation and increased bone resorption. In the second controlled study with a dietary P intake of 1850 mg/d, by increasing the Ca intake from 480 mg/d to 1080 mg/d and then to 1680 mg/d, the S-PTH concentration decreased, the S-iCa concentration increased and bone resorption decreased dose-dependently. However, not even the highest Ca intake could counteract the effect of high dietary P on bone formation, as indicated by unchanged bone formation activity. In the cross-sectional studies, a higher habitual dietary P intake (>1650 mg/d) was associated with lower S-iCa and higher S-PTH concentrations. The consumption of phosphate additive-containing foods was associated with a higher S-PTH concentration. Moreover, habitual low dietary Ca:P ratios (≤0.50, molar ratio) were associated with higher S-PTH concentrations and 24-h urinary Ca excretions, suggesting that low dietary Ca:P ratios may interfere with homeostasis of Ca metabolism and increase bone resorption. In summary, excessive dietary P intake in healthy Finnish women seems to be detrimental to Ca and bone metabolism, especially when dietary Ca intake is low. The results indicate that by increasing dietary Ca intake to the recommended level, the negative effects of high P intake could be diminished, but not totally prevented. These findings imply that phosphate additives may be more harmful than natural P. Thus, reduction of an excessively high dietary P intake is also beneficial for healthy individuals.
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An epitope scan analysis of the whole sequence of avidin and core streptavidin using polyclonal antibodies to these two antigens reveal the presence of multiple common epitopes in both the proteins. These antigenic determinants consist mostly of either identical or similar residues. The antibody recognition sites in both antigens are shown to be localized to homologous regions.
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Given a set of points P ⊆ R2, a conflict-free coloring of P w.r.t. rectangle ranges is an assignment of colors to points of P, such that each nonempty axisparallel rectangle T in the plane contains a point whose color is distinct from all other points in P ∩ T . This notion has been the subject of recent interest and is motivated by frequency assignment in wireless cellular networks: one naturally would like to minimize the number of frequencies (colors) assigned to base stations (points) such that within any range (for instance, rectangle), there is no interference. We show that any set of n points in R2 can be conflict-free colored with O(nβ∗+o(1)) colors in expected polynomial time, where β∗ = 3−√5 2 < 0.382.
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Contenido: Garcilaso de la Vega: 1501?-2001 -- El concepto de "transformación" y sus aplicaciones al análisis de la poesía de Garcilaso / Sofía M. Carrizo Rueda – Algunas observaciones, a principios de un nuevo milenio, en torno a las comedias de Calderón de la Barca / Lilia E. Ferrario de Orduna – Palomeque, don Quijote, Cervantes: tres lectores de Cirongilio de Tracia de Bernardo de Vargas / Javier Roberto González – Cervantes: riesgo del vivir, azar y Providencia. Una lectura en clave bíblica y patrística / Teresa Herráiz de Tresca –La justicia divina o el orlo Amoris en el Amadis de Gaula / Silivia C. Lastra Paz -- Catálogo descriptivo de libros de caballerías castellanos, XIV. Otro Palmerín de Olivia recuperado: Sevilla, Jácome Cromberger, 1547 (Con algunas reflexiones sobre el arte de editar textos impresos) / José Manuel Lucía Megías – La defensa de la poesía en el Perú colonial: El Discurso en Loor de la Poesía / Graciela Maturo – Sobre la evolución de -nn-, -nw- y -w- interiores intervocálicos en la onomástica geográfica del Amadís de Gaula / Aquilino Suárez Pallasá – Reforma y Contrarreforma en las artes plásticas / Carmen Balzer – Tomás Moro y el Humanismo cristiano / Inés de Cassagne – Algunos poetas latinos del Humanismo / Raúl Lavalle – Reseñas bibliográficas
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Este trabajo se realizó en dos investigativas La primera estuvo orientada en determinar si el tamaño de la semilla de sorgo T-43, tenía influencia en la viabilidad, lo cual se comprobó a nivel de campo y laboratorio, donde los porcentajes diferencias en ambos porcentajes. Cabe hacer mención que los datos obtenidos no son concluyentes, por carecer de repeticiones suficientes, pero si presentan tendencias en favor de la semilla clasificada con tamiz 10, el cual mostró los mayores porcentajes de germinación: de ello podemos deducir que la semilla para uso en la siembra se debe clasificar por tamaño. La segunda fase consisto en cosechar en tres épocas diferentes (tres diferentes humedades de semilla), los que se secaron al sol a 13 porciento de humedad, almacenándose en dos ambientes diferentes (cuarto frió, ambiente natural), los resultados no fueron concluyentes, ya que no se obtuvieron diferencias significativas en lo que se refiere a los ambientes de almacenamiento y los momentos de recolecta; por lo que la pérdida de viabilidad observada se atribuyen a otros factores no controlados en el curso de este trabajo. Por otra parte, la semilla se sorgo T-43, muestra su más alto porcentaje de germinación 90,80,y 85 a los 100 días , con rangos de temperatura y humedad relativa de 25-27ªC y 60-65 por ciento respectivamente, esto para los momentos de recolecta 27.70 y 19.37% de humedad.
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El presente estudio, se realizó con el objetivo de evaluar el comportamiento productivo y económico de novillos de finalización sometidos a dos suplementos nutricionales como parte de la dieta alimenticia que utiliza la Asociación de Ganaderos de Camoapa. Los suplementos correspondieron a suministro por animal de miel-urea al 10 % (180 g de urea-0.6 kg de melaza-120 g de sal común y mineral) y 2.7kg de concentrado comercial El Ranchero al 16 %, este suplemento se suministró durante 50 días a dos grupos conformados por 9 novillos correspondientemente, con pesos inicial es de entre 304-309 kg. Después de realizar análisis de muestras pareadas de t-student a los promedios de peso final y ganancia media diaria (GMD), se encontró diferencia significativa (Pr=0.03; gle=17) para los tratamientos: El Ranchero 16% tuvo un peso final promedio de 382.5 ± 10.7 kg y 366.9 ± 20.1 kg con suplementado con miel-urea 10 %. La GMD tuvo el promedio de 1.46 kg para El Ranchero 16% y 1.25 kg para miel-urea 10%. Los costos de suplemento miel-urea 10% fue de C$12.30 y de C$27.6 para El Ranchero 16%. La relación beneficio-costo para miel-urea reflejó que por cada córdoba invertido se generan C$ 2.82 y para concentrado el Ranchero al 16% se generan C$1.43.
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Núcleo Trabalho, Previdência e Assistência Social.
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Fecha: 25-11-1944 (>1970 reproducción) / Unidad de instalación: Carpeta 25 - Expediente 23-6 / Nº de pág.: 1 (mecanografiada)
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Text transcription of interviews at day 3 of Networkshop 43
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Front cover. Contents. (PDF contains 2 pages)
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Back cover. Map of Galápagos. Galapagos Penguin, Photo by G.T. Corley Smith.