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Este artigo se insere na área de lingüística contrastiva. Aqui analisamos o pronome francês "ça" na sua função de dêitico em português do Brasil. As principais características deste elemento serão expostas na ...

Este trabalho foi conduzido, utilizando 15 vacas lactantes (Holandês x Gir) alimentadas à vontade com rações isoprotéicas, constituídas na base da matéria seca (MS) de 60% de silagem e 40% de concentrado, contendo...

O objetivo desta pesquisa foi estudar o efeito econômico de povoamento de alevinos I de carpa comum (Cyprinus carpio L.), no inverno em alta densidade, com suplementação artificial e adubação química. O delineament...

Background: Oxidative modification of low density lipoproteins (LDL) is recognized as one of the major processes involved in atherogenesis. The in vitro standardized measurement of LDL oxidative susceptibility could thus...

Morphometric characters of two populations of Difflugia corona Wallich, 1864 collected in two climatic stations (Spring, Autumn) in lentic environments of Chaco Province, Argentina, are studied. In the first climatic sta...

Deprotection of various phenols from their respective methoxymethyl ethers using an heteropolyacid catalyst was studied. The catalyst was the Wells-Dawson heteropolyacid, used both in bulk or supported on silica. Yields ...

En este trabajo se analiza la formación de las colecciones de mamíferos fósiles de la región del Río de La Plata tomando, como caso particular, las del Museo de Historia Natural de París de mitades del siglo XIX. P...

La enzima fosfolipasa A2 inmovilizada promueve la reacción hidrolítica de lecitina de soja pura en polvo liberando un mol de ácido graso de la posición C-2. El principal propósito de este trabajo fue determinar los ...

The hydrolisis of soybean lecithin can be carried out by means of the use of immobilized A2 phospholipase which releases a fatty acid of C-2 position of the phospholipids so that an enriched product in lysolecithins is o...

Four species of Nematomorpha are recorded from NE Spain, representing the first reliable data on the group in the Iberian peninsula. Gordius aquaticits Linnaeus, 1758, G. plicatulus Heinze, 1937, Gordionus wolterstorffii...

In the present study we used a simple and reliable method for HLA-DQA1 allele typing based on the single-stranded conformation polymorphism (SSCP) properties of DNA molecules obtained by PCR. The technique consists of PC...

Hydration properties of soybean isolates with different processing conditions (heat treatments, pH and protein concentrations) were studied. Degree of denaturation, solubility in water, in 0.2mol/L NaCl, and in media of ...

We report the calculation of boiling points for several alkyl alcohols through the use of improved molecular descriptors based on the optimization of correlation weights of local invariants of graphs. As local invariants...

Los AMO3, llamados perovskitas, forman una gran familia de compuestos que presentan a su vez diversas propiedades físicas así como enormes aplicaciones tecnológicas. Es posible expandir esta familia y sus propiedades ...

The enthalpy of formation of a set of 60 hydroarbons is calculated on the basis of topological descriptors defined from the distance and detour matrices within the realm of the QSAR/QSPR theory. Linear and non-linear pol...

The richness, diversity, abundance and prevalence of mite species associated with sigmodontine rodents of different species in Entre Ríos province. Argentina are studied. Five of the six species of mites were reported f...

Undernutrition elicited by a low-protein diet determines a marked reduction of hypophyseal activity and affects the function of the respective target organs. The objective of the present investigation was to study the ul...

We report the finding of Tetrameres spirospiculum Pinto & Vicente, 1995 from Theristicus melanopis melanopis (Threskiornithidae) from Patagonia, Argentina. These constitute new host and locality records. We propose the a...

Background : The tissue accumulation of protein-bound advanced glycation endproducts (AGE) may be involved in the etiology of diabetic chronic complications, including osteopenia. The aim of this study was to investigate...

The present work is about the development of a Novel Composite that has several properties in only one material. This material is composed by a silica network with a sharpened pore size distribution - diameter near 1000 ...

Background: The possible participation of endogenous islet catecholamines (CAs) in the control of insulin secretion was tested. Methods: Glucose-induced insulin secretion was measured in the presence of 3-lodo-L-Tyrosine...

Mansonella ozzardi, a relatively non pathogenic filarial parasite of man in Latin America, is transmitted by either ceratopogonid midges or simuliid blackflies. In the only known focus of the disease in north-western Arg...

The kinetics of the thermal decomposition reaction of cis-6-phenyl-5,6-(2- phenylpropyliden)-3,3-pentamethylene-1,2,4-trioxacyclohexane (Ia) were investigated in benzene and methanol solutions in the temperature and conc...

A key to species groups of the genus Belostoma Latreille, 1807, using new taxonomic characters are presented as well as the revision of the four species included in the denticolle group: B. denticolle Montandon, 1903, an...