[PDF] Top 20 An. Acad. Bras. Ciênc. - vol.76 número3

... cells. An important observation was that the synergism of the H2 and H3 hypersensitive sites was manifested only in the stable transformants but not in the ...that an activating effect is feasible only when ... See full document

... The third important modulator of retrieval is the influence of other information added to the stim- ulus complex at the time of retrieval. One of such influences is novelty. Exposure to a novel environ- ment or to a ... See full document

... With the aim of assaying this hypothesis in the field conditions, we initially comparatively an- alyzed the canine visceral leishmaniasis prevalence in Jardim Progresso, an endemic area for canine and human ... See full document

... (Azhar et al. 2004). In this study, the extracts of cvs. Larrañaga and São Gabriel significantly (p<0.05) inhibited the mycelia growth, at least in one of the fungi tested, indicating the importance of evaluating ... See full document

... capsule. An aliquot of this homogenized mixture of spores and water was collected using a Pasteur pipette and added to a Neubauer counting ...and an ocular micrometer we randomly measured the largest ... See full document

... The optimum load size theory was created in order to provide a scientific standard model regarding the transport of alimentary items by animals (Charnov 1976, Krebs and Davies 1993). However, organisms do not carry food ... See full document

... The fish immune system is responsible for destroying microorganisms through acquired and innate components, with humoral and cellular process that perform together in an attempt to prevent the outbreak of ... See full document

... swimming in echelon position with an adult (potentially the mother) in Babitonga Bay, southern Brazil (26°02’-26°28’S, 48°28’-48°50’W) (Figure 1). The whole body had a pink color. The calf had evidence of recent ... See full document

... Therefore, cortical and medullar lymphocytes, although all being T-cells, have some major differences in their functional and maturational status. First, these two populations have different expression of TCR co-receptor ... See full document

... The histological structure of the ovary of cetaceans is similar to that of terrestrial mammals (Simpson and Gardner 1972). These organs, similar to that of other mammals (Bacha and Bacha 2012), have a cortical portion ... See full document

... Simplex centroid design is very useful in establishing optimal proportions among the various components of a mixture. In ultrasound- assisted extraction, acid solutions are usually used as extracting agents due to their ... See full document

... In conclusion, we raised important aspects that will deepen our understanding regarding the mechanisms affecting leaf water enrichment and the diversity of ecophysiological behaviors in restinga plants. We demonstrated ... See full document

... is an urgent need to establish georeferenced baseline maps of plant and soil microbial distribution in order to evaluate future compositional changes through the ... See full document

... cal Africa, Asia and South America (Gupta 1994), many of which are used in folk medicine, as spices and also to control insects (Grayer et al. 1996). Moreover, there is an economic exploitation by large-scale ... See full document

... Richness and diversity were significantly different at sites C and D compared to the other environments. Several site characteristics contributed to this dissimilarity, particularly the high levels of nutrients (nitrogen ... See full document

... The “Klason”-lignin content in the samples varied between 19.8% and 25.8%. In the heartwood samples, the lignin content was higher than in the sapwood. The higher content of “Klason”-lignin in the heartwood might be ... See full document

... The births of brown brocket deer (Mazama gouazoubira) in a secondary lower montane forest called “yunga” in northwestern Argentina were compared with rainfall. Analyses were performed with rainfall and flower-fruit fall ... See full document

... Let  be an open connected subset of R n , and consider 8() = {F ∈ C ∞ (, R n ) : det(DF)(x) 6= 0 ∀x}. We denote an element of 8() by F = (f 1 , . . . , f n ) . A very basic problem in Mathematical ... See full document

... ent. An example is 2,4-dichlorophenylacetic acid (2,4- D), which is commercially employed as a herbicide, but can be used as an auxin to promote plant growth in tis- sue cultures (Pasqual ... See full document

... The averages for the content of diastase index do not differ (P>0.05) between the two groups. The aver- age of the diastase index in non-organic honey was 29.76 (Gothe scale) to an interval from 16.31 to 38.83, ... See full document