Sample records for FLUOR 20 (fluorine 20)
from WorldWideScience.org

Sample records 1 - 15 shown.



1

Fosfatos sedimentarios venezolanos en la alimentación de ovinos

Godoy, Susmira; Chicco, Claudio; Requena, Fanny
2002-09-01

Resumen en portugués Determinaram-se os coeficientes de absorção real e a cinética do fósforo, e a retenção de flúor, em ovinos alimentados com os fosfatos das jazidas venezuelanas de maior uso para esse fim, Riecito (RIO) e Monte Fresco (MONTE), com um fertilizante (superfosfato triplo, SFT) e com fosfato dicálcico (DICAL) como testemunha. Usaram-se 16 ovinos (West African), de 25kg ±1,76, distribuídos ao acaso, nos quatro tratamentos (fosfatos), com quatro animais cada um. Os ovin (mas) os foram mantidos por 21 dias, 14 de adaptação e 7 de medidas, em jaulas de metabolismo para a determinação de consumo e de excreções, com recolhimento de amostras para análise de P y F. À dieta basal com 0,12% P, 14,3% proteína crua estimada (PCE) e 2,97 Mcal energia metabolizável estimada (EME)/kg, ambos calculados em base à composição dos ingredientes da dieta, adicionaram-se dois níveis de P (0,05 y 0,20 %). Determinou-se a absorção aparente (AA), a retenção líquida aparente (RNA), a eficiência de utilização (EU), a absorção verdadeira (AV) e a cinética do P, mediante diluição isotópica com 32P. Os animais, que consumiram as dietas com a adição de 0,20% P, foram dosados com 200 µCi de 32P por via intravenosa, para medir a perda endógena fecal e a cinética do P. A AA e a EU do P, com adição de 0,20% de P, foram superiores (P Resumen en español Se determinaron los coeficientes de absorción real y la cinética del fósforo, y la retención de flúor, en ovinos alimentados con los fosfatos de los yacimientos venezolanos de mayor uso para ese fin, Riecito (RIO) y Monte Fresco (MONTE), con un fertilizante (superfosfato triple, SFT) y con fosfato dicálcico (DICAL) como testigo. Se usaron 16 ovinos (West African), de 25kg ±1,76, distribuidos al azar, en los cuatro tratamientos (fosfatos), con cuatro animales cada u (mas) no. Los ovinos fueron mantenidos por 21 días, 14 de adaptación y 7 de medidas, en jaulas de metabolismo para la determinación de consumo y de excreciones, con toma de muestras para análisis de P y F. A la dieta basal, con 0,12% P, 14,3% proteína cruda estimada (PCE) y 2,97 Mcal energía metabolizable estimada (EME)/kg, ambos calculados en base a la composición de los ingredientes de la dieta, se adicionaron dos niveles de P (0,05 y 0,20%). Se determinó la absorción aparente (AA), la retención neta aparente (RNA), la eficiencia de utilización (EU), la absorción verdadera (AV) y la cinética del P, mediante dilución isotópica con 32P. Los animales que consumieron las dietas con la adición de 0,20% P, fueron dosificados con 200 µCi de 32P por vía intravenosa, para medir la pérdida endógena fecal y la cinética del P. La AA y la EU del P, con adición de 0,20% de P, fueron superiores (P Resumen en inglés True absorption coefficients and phosphorus kinetics, as well as fluorine retention, were determined in lambs fed with the Venezuelan sedimentary phosphates most commonly used, Riecito (RIO), Monte Fresco (MONTE), with a fertilizer (triple super-phosphate; SPT) and with dicalcium phosphate (DICAL) as a control. Sixteen male lambs (West African), with 25kg ±1.76 average body weight were randomly assigned in groups of four to the four treatments (phosphates). Lambs were ke (mas) pt in metabolism crates during 21 days, 14 for adaptation and 7 to record feed intake and excreta. To the basal diet, containing 0.12% P, 14.3% estimated crude protein (PCE) and 2,97 Mcal estimated metabolizable energy (EME)/kg, both calculated on the basis of chemical composition of diet ingredients, two levels of added inorganic phosphorus (0.05 and 0.20%) were added from the different phosphates to measure apparent absorption, apparent net retention, utilization eficiency and true absorption. The lambs fed with 0.20% added phosphorus were intravenously dosed with 200 µC of 32P to measure fecal endogenous phosphorus and kinetics of 32P. An isotopic dilution technique was used to measure true absorption. At 0.20% added P, absorption measurements were greater (P

Scientific Electronic Library Online (Spanish)

2

Formation of mesostructured silica in nonionic fluorinated surfactant systems

Esquena, Jordi; Rodríguez-Abreu, Carlos; Solans, Conxita; Kunieda, Hironobu
2006-02-23

Digital.CSIC (Spain)

4

Oil-induced anomalous thermoresponsive viscoelasticity in fluorinated surfactant systems

Sharma, Suraj Chandra; Rodríguez-Abreu, Carlos; Shrestha, Lok Kumar; Aramaki, Kenji
2007-10-04

Digital.CSIC (Spain)

5

New fluorinated derivatives as esterase inhibitors. Synthesis, hydration and crossed specificity studies

Quero, Carmen; Rosell, Gloria; Jiménez, Óscar; Rodríguez Ropero, Sergio; Bosch, María Pilar; Guerrero, Ángel
2003-03-01

Digital.CSIC (Spain)

6

Short haired wormlike micelles in mixed nonionic fluorocarbon surfactants

Sharma, Suraj Chandra; Rodríguez-Abreu, Carlos; Shrestha, Lok Kumar; Aramaki, Kenji
2007-05-29

Digital.CSIC (Spain)

7

New selective haloform-type reaction yielding 3-hydroxy-2,2-difluoroacids: theoretical study of the mechanism

Olivella, Santiago; Solé, Albert; Jiménez, Óscar; Bosch, María Pilar; Guerrero, Ángel
2005-02-04

Digital.CSIC (Spain)

8

New Selective Haloform-type Reaction Yielding 3-Hydroxy-2,2-difluoroacids: Theoretical Study of the Mechanism

Olivella, Santiago; Solé, Albert; Jiménez, Óscar; Bosch, María Pilar; Guerrero, Ángel
2005-02-04

Digital.CSIC (Spain)

9

Highly hydrophobic lanthanide-organic porous material with fluorescence and magnetic properties

Corma Canos, Avelino; Rey García, Fernando; Atienzar Corvillo, Pedro; García Gómez, Hermenegildo; Harbuzaru, Bogdan-Vasile
2010-04-29

Digital.CSIC (Spain)

10

Generation of high-confinement step-like optical waveguides in LiNbO3 by swift heavy ion-beam irradiation

Olivares, J.; García, G.; García Navarro, A.; Agulló-López, F.; Caballero, O.; García Cabañes, A.
2005-04-01

Digital.CSIC (Spain)

11

Gas separation of 6FDA–6FpDA membranes: Effect of the solvent on polymer surfaces and permselectivity

Recio, Roberto; Lozano, Ángel E.; Marcos-Fernández, Ángel; Campa, José G. de la; Abajo González, Javier de
2007-04-20

Digital.CSIC (Spain)

12

F+OH reactive collisions on new excited 3A'' and 3A' potential-energy surfaces

Gómez Carrasco, Susana; Roncero, Octavio; González-Sánchez, Lola; Hernández, M. Luz; Alvariño, José M.; Paniagua, Miguel; Aguado, Alfredo
2005-09-22

Digital.CSIC (Spain)

13

Direct versus resonances mediated F+OH collisions on a new 3A'' potential energy surface

Gómez Carrasco, Susana; González-Sánchez, Lola; Aguado, Alfredo; Roncero, Octavio; Alvariño, José M.; Hernández, M. Luz; Paniagua, Miguel
2004-09-08

Digital.CSIC (Spain)