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Deuterium quadrupole splittings, of deuterated water, Deltav, in anionic discotic nematic lyomesophases are always much larger than in cationic mesophases. To explore the possible origins of this difference, Deltav and T-1 relaxation times of HDO (H2O 0.2% D2O) and decanol (DeOH 14% alpha-d(2)), ...


Ahumada, H.Montecino, R.Martínez, R.Araya Maturana, R.Weiss López, B. E.[About the difference in the quadrupole splitting of water between cationic and anionic nematic lyotropic liquid crystals. H-2-NMR and molecular dynamics study]About the difference in the quadrupole splitting of water between cationic and anionic nematic lyotropic liquid crystals. H-2-NMR and molecular dynamics study

We have detected, for the first time, Cepheid variables in the Sculptor Group spiral galaxy NGC 7793. From wide-field images obtained in the optical V and I bands on 56 nights in 2003-2005, we have discovered 17 long-period (24-62 days) Cepheids whose periods and mean magnitudes define tight per...


Pietrzynski, GrzegorzGieren, WolfgangHamuy, MarioPignata, GiulianoSoszynski, IgorUdalski, AndrzejWalker, AlistairFouque, PascalBresolin, FabioKudritzki, Rolf-Peter[The Araucaria Project. First Cepheid Distance to the Sculptor Group Galaxy NGC 7793 from Variables discovered in a Wide-Field Imaging Survey]The Araucaria Project. First Cepheid Distance to the Sculptor Group Galaxy NGC 7793 from Variables discovered in a Wide-Field Imaging Survey

The effect of climate on dairy and beef cattle is variable and complex because it affects the environment in which the animals are raised and reproduced. Its influence on animal welfare and production have been recognized and studied since 1950's. Climate affects livestock directly and indirectly...

El efecto del clima en el ganado bovino es variable y complejo, ya que condiciona el medioambiente en el que los animales viven y se reproducen. Sus influencias en el bienestar y producción animal han sido reconocidas y estudiadas desde 1950. El clima afecta al ganado directa e indirectamente, ya...


Arias Inostroza, RodrigoMader, TerryEscobar, Carlos Paul[Factores climáticos que afectan el desempeño productivo del ganado bovino de carne y leche][Climatic factors affecting cattle performance in dairy and beef farms]Climatic factors affecting cattle performance in dairy and beef farms

The effect of dietary inclusion of whole grain white lupin (Lupinus albus) on growth performance, histology, muscle fatty acid composition and nutrient digestibility was investigated in an 11-week growth and a 4-week digestibility trial with rainbow trout (initial body weight of 54.0 ± 6.2 and 18...


Bórquez Ramírez, AliroSerrano Gutiérrez, EdisonDantagnan Dantagnan, PatricioCarrasco, JaimeHernández Arias, Adrián[Feeding high inclusion of whole grain white lupin (Lupinus albus) to rainbow trout (Oncorhynchus mykiss): Effects on growth, nutrient digestibility, liver and intestine histology and muscle fatty acid composition]Feeding high inclusion of whole grain white lupin (Lupinus albus) to rainbow trout (Oncorhynchus mykiss): Effects on growth, nutrient digestibility, liver and intestine histology and muscle fatty acid composition

The beekeeping in Chile has been especially important for the small and medium agriculture due to the several products that can be obtained from the explotation. One of the major problems is the incidence of diseases and parasites, being the acarus ectoparasite Varroa destructor Anderson & Truema...

La apicultura en Chile ha sido importante sobre todo para la pequeña y mediana agricultura, por los diversos productos que se pueden extraer de esta explotación, pero uno de los mayores problemas son la incidencia de enfermedades y parásitos. Una de las principales patologías es el ácaro ectopará...


Araneda Durán, XimenaPérez, N.R.Castillo R., ClaudiaMedina, M.L.[Evaluation of the hygienic behavior of Apis mellifera L. related to the level of infestation of varroa destructor Anderson & Trueman][Evaluación del comportamiento higiénico de Apis mellifera L. en relación al nivel de infestación de varroa destructor Anderson & Trueman]Evaluación del comportamiento higiénico de Apis mellifera L. en relación al nivel de infestación de varroa destructor Anderson & Trueman

In the Region of La Araucanía tests have been made where the production of honey of double queen beehives was compared to single queen beehives, with encouraging results. This motivated the accomplishment of this study in the zone of Nueva Imperial, which compared the conventional production of h...

En la Región de La Araucanía se han realizado ensayos donde se comparó la producción de miel de colmenas doble reina y colmenas de una sola reina, con resultados alentadores. Esto motivó la realización de este estudio en la zona de Nueva Imperial, el cual comparó la producción de miel de sistemas...


Rebolledo, R.R.Guinez V., C.G.Araneda Durán, XimenaAguilera P., Alfonso[Comparative study of honey bee production with one and three queens by beehive in nueva imperial, IX region, Chile][Estudio comparativo de la producción de miel con una y tres reinas por colmena en la zona de nueva imperial, Chile]Estudio comparativo de la producción de miel con una y tres reinas por colmena en la zona de nueva imperial, Chile

The objective of the present study was to compare the ovarian follicular response, cumulus-oocyte complex (COC) collection rate, and maturational status of COC collected from alpacas subsequent to treatment with two different superstimulatory protocols. Alpacas (n = 7 per group) were treated with...


Ratto Fuster, MarceloGómez, C.Berland Olea, MarcoAdams, G.P.[Effect of ovarian superstimulation on COC collection and maturation in alpacas]Effect of ovarian superstimulation on COC collection and maturation in alpacas

A study was made of the catalytic oxidation of a model mixture of effluents from forest biomass combustion equipment, consisting principally of methane (CH4), naphthalene (C10H8), carbon monoxide (CO) and oxygen-poor air (10% O2, balance N2), in a laboratory reactor, using MeOx/TiO2 catalysts (Me...


Cerda, C.Romero, L.Jiménez, R.Fuentes, G.Centeno, M.A.Alarcón N.N.[Catalytic oxidation of emissions in combustion systems for forest biomass, using catalysts with TiO2 support]Catalytic oxidation of emissions in combustion systems for forest biomass, using catalysts with TiO2 support

A mathematical model and the simulation of a biofilter for the treatment of gaseous effluents are presented. The mixture included sulfur compounds such as hydrogen sulfide, methyl mercaptan, dimethyl sulfide and dimethyl disulfide, all dissolved in air. The conditions under which restrictions on ...


Vergara-Fernández, AlbertoAroca, Germán E.Alarcón, N.A.Encina Montoya, Francisco[Modelado y simulacion de un biofiltro para el tratamiento de gases contaminados con compuestos sulfurados][Modeling and simulation of a biofilter for treatment of gas contaminated with sulfur compounds]Modeling and simulation of a biofilter for treatment of gas contaminated with sulfur compounds

El presente estudio se centra en fundamentar la necesidad de incluir en el ordenamiento jurídico cubano una regulación sustantiva y procesal que permita emplear la mediación como vía alternativa de solución de los conflictos familiares. Bajo tal pretensión se impone en primer orden sistematizar p...

This study focuses on the need to include support of the Cuban legal substantive and procedural regulation allowing use mediation as an alternative way of resolving family conflicts. Under such a claim is imposed on first-order theoretical and conceptual systematization regarding family mediation...


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