[PDF] Top 20 An. Acad. Bras. Ciênc. - vol.74 número4

... We study the topological equivalence between two vector fields defined in the neighborhood of the skeleton of a normal crossings divisor in an ambient space of dimension three. We deal with singularities obtained ... See full document

... by an interference with β-noradrenergic receptors in the basolateral amyg- dala and perhaps elsewhere, which mediate retrieval, and, in addition, or related to that, by a reduction of blood flow in the temporal ... See full document

... larger than nutria (Myocastor coypus), 2 cm (Machado et al. 2009b). Conus medullaris is an important struc- ture for epidural anesthesia procedures (Barry 1956, Bruni and Zimmerl 1977, Dyce et al. 2004, Evans and ... See full document

... has an important effect, this effect is restricted to when the canopy is actually wet, which is a relatively short period of time at monthly or longer time ... See full document

... as an alternative resource for estimating climatic variables that may replace the traditional interpolation methods (Białobrzewski 2008, Sivapragasam et ... See full document

... of an adhesive tape (according to Barbosa et ...in an ethanol series, immersed in n-butyl acetate, and then mounted for permanent slides with a synthetic ... See full document

... animals an paucivascular area, it allowed the division of the body in two segments anatomo-surgical, which presented the distribution of segmentary branches described in Table ... See full document

... only an upper glume and lemma enveloping the caryopsis, thus, corroborating the description of the genus (Filgueiras 1986, Oliveira and Valls 2001, Boldrini et ... See full document

... Chemical analysis of coplanar PCBs followed the method described in a previous report: USEPA Method 1668 (2003) and USEPA Method 8290 A (2007). Five grams of liver samples were weighed and lyophilised. Dry tissues were ... See full document

... Production of fibrous activated carbons from natural cellulose (jute, coconut) fibers for water treatment applications. Mechanical property evaluation of sisal–jute–glass fi[r] ... See full document

... in an extractive form and information about production technologies are essential for its seedling propagation and rational use, however, the seedling production is hampered due to the small number of seeds per ... See full document

... Although researches relate pathogenic tole rance to melanization’s reactions with consequent involvement of 22 prophenoloxidases cascade (Wilson et al. 2001), very little is known about the phenoloxidase activity in ... See full document

... The karyotype of Salix alba is composed of six pairs of relatively large chromosomes, making it a convenient instrument for karyotypic studies (Carvalho 2005). The Tradescantia Micronuclei Test (Trad-MCN) is a common ... See full document

... Many of the current diets are rich in fat, salt, and sugar, and poor in complex carbohydrates, vitamins and min- erals, and are responsible for an increase in diet-related diseases such as obesity, diabetes, ... See full document

... other Phalangopsis through the following combination of characteristics: (i) ocelli present, forming an equilat- eral triangle; (ii) a rounded fore wing covering the first abdominal tergite (Fig. 1C); (iii) ... See full document

... fluid motion as a result of thermally induced medium inhomogeneities, demon- strated that at low frequencies the fluid motion around the electrodes, consisting of a couple of whirlpools [r] ... See full document

... The eco-volume efficiency (V e ), yield expressed in dry matter (ton DM), or energy (MJ) or money per lost eco-volume appears to be a powerful discriminat- ing tool. For example, to produce a ton of dry matter in the ... See full document

... as an adaptation to deter pollen theft by non-pollinating in- sects, and lipid pollen arose as a plant adaptation to at- tract and reward pollen-feeding ... See full document

... and appropriating the consumption objects, places him- self/herself in the role of an active receiver of the social discourse inherent to the object. When using it, he/she legitimates the symbolic value that the ... See full document

... is an interpreted pro- gramming language that can be mixed within the HTML (Hypertext Markup Language) code, allowing a possible wide use especially in which concerns the development of programs for the world ... See full document