[PDF] Top 20 An. Acad. Bras. Ciênc. - vol.80 número4

... 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

... is an increasing tendency to apply bibliometric factors to evaluate scientific performance, why not con- sider them when decisions are made for funding periodi- cals? Just as an example, the resources ... See full document

... a whitish light yellow color. Elongated face in frontal view (Fig. 1B). Three reduced ocelli present, forming an equilateral triangle. Light brown scape. Antennae uniformly yellowish light brown. Body yellowish ... See full document

... is an opportunistic pathogen that can cause local and systemic infections in predisposed per- sons, commonly affecting immunologically comprom- ised patients and those undergoing prolonged antibiotic ... See full document

... Rapid Rural Assessment methods have been widely de- veloped in the field of agriculture, economics, sociology, anthropology and epidemiology (Rifkin 2007, Brooke and Knuthk 2002.). It generally consists of drawing a ... See full document

... Mangrove communities are tropical systems which have fewer species than tropical forests, especially in Latin Amer- ica and display a single architecture, usually lacking the various strata commonly found in other forest ... 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

... 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

... Major modifications of immune system have been observed in African trypanosomiasis. These immune reactions do not lead to protection and are also involved in immunopathology disorders. The major surface component ... 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

... As for ρ ∗ -mixing sequences of random variables, one can refer to Bryc and Smolenski (1993), who found bounds for the moments of partial sums for a sequence of random variables satisfyi[r] ... See full document

... of an endogenous PLC, since the polypeptides released in vivo were not recognized by the anti-CRD ...as an experimental model for the study of the role of gp63-like molecules on the interaction of lower ... See full document

... Another mammalian glycosaminoglycan, dermatan sulfate (DS), has mild anticoagulant activity through its potentiation of heparin cofactor II (HCII), which, like antithrombin, is a plasma serine protease in- hibitor. ... See full document

... 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

... factors also play a role in the development of gas- tric cancer in these patients. Infection with He- licobacter pylorii may be one of them, although the prophylactic treatment of this infection did not seem to alter the ... See full document

... has attracted some attention in the last two decades, and is now but an example in Gromov– Witten theory, cf. (Fulton and Pandharipande 1997), (Kock and Vainsencher 1999). No such general technique is known yet ... See full document

... Direct oxidative modification of specific sub- units of respiratory complexes may be an underly- ing means of inactivation of assembled mitochon- drial complexes in chagasic hearts (Wen and Garg 2004). Cardiac ... See full document

... the an- giosperms are by far the most numerous group; they have from 250 thousand to 300 thousand species; while the other plants number just around 53 thou- sand (Eguiarte et ...the an- giosperms have been ... See full document

... without an increased inflammation in mice (Kasa- hara et ...suggest an imbalance between apoptosis and the repair of structural cells in the lung, favoring the destruction of lung tissue in response to ... See full document