[PDF] Top 20 An. Acad. Bras. Ciênc. - vol.73 número3

... induces an increase in light ...and an increase of extracellular K ...cause an increase of light transmission, then a ...conditions an increase of light transmission has been reported to be ... See full document

... Fig. 1 – The Graciosa Province in southern Brazil (left panel). The main tectonic units in southern Brazil are indicated - A: Ribeira Fold Belt, B: Curitiba Microplate, C: Luiz Alves Microplate, D: Coastal Granitoid ... See full document

... to an industrial ...of an already strained global en- vironment? Concluding in the affirmative, many already see the objective of global environmental sustainability as one more unrealistic burden at odds ... See full document

... Compound 1 gave a molecular ion [M] + at m /z 390.18314 in HREIMS which corresponds to C25 H 26 O 4 (calc. 390.18311). The NMR data (Table III) were very similar to those of the dibenzoylmethane derivative described ... See full document

... constitutes an important tool for N cycling studies in living organisms, also minimizing labor and environmental hazards, as well as time limitation problems in field ... See full document

... By steaming Fagus sylvatica logs at 60 ◦ C, it’s con- cluded that the presence of both heartwood and sap- wood in a same log does not allow an uniform stream heat in the material (Perré 2004). During the steaming, ... See full document

... We wish to thank the R.E.H.M. and its former direc- tor, E. Richard, for offering access to files and instal- lations, as well as C.P. Juárez, K. García, K. Soria, M. Juárez, M.C. Cocimano, R. Delgado, and I. Palacios ... 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

... et al. 1998). This study is part of a contribution to improve the knowledge of the hermit crab commu- nities living on the infralittoral rocky bottom (An- chieta Island, Ubatuba), in order to provide infor- mation ... See full document

... for reviews). In the authors’ opinion, the confu- sion resulted, in part, because (i) there had been little detailed morphodynamic research conducted on foredune evolution and dynamics, and on fore- dune plains prior to ... See full document

... blood eluates for sera samples had a strong impact on the decline of the disease incidence. The use of an ELISA assay for the canine control would prob- ably reduce the human cases to zero. Ashford et al. (1998) ... See full document

... It was discussed above and elsewhere (Szapiro et al. 2000, 2002, Vianna et al. 2003) that the molec- ular changes underlying the beginnings of extinction are in all probability triggered by retrieval. Thus, at least in ... See full document

... 1999). An early explanation why transgenes can be ectopically expressed was that the promoters might not contain all the sequences required for their correct tissue-specific ... See full document

... have been used to stimulate ascending noradrener- gic neurons in both laboratory animals and humans, since the firing rate of LC neurons is inhibited by such receptors. The most widely used is the alka- loid yohimbine. ... See full document

... is an important role to the sustainability of the apiculture because it rep- resents a continuous food offering, which supplies the lack of blossom in the ...for an effective stock to the pollination of ... See full document

... providing an analysis on lipid dynamics during insect development was conducted by Kinsella ...to an increase on the content of palmitic (16) and stearic (18) ...to an increase on the content of ... See full document

... Let p be the reduced singularity of F whose quotient of eigenvalues is not rational nor a root of unity. If F admits an invariant algebraic curve C we can suppose without loss of generality that C is reduced and ... See full document

... Subvolcanic rocks are monzonites and quartz monzonites and occur as small intrusions around the Lavras Granite Complex. These rocks occur in two different facies: a porphyritic one with phe- nocrysts of plagioclase ... See full document

... towards an in vivo cancer model, ascite-bearing female mice between 7 and 9 days postinoculation were sacrificed by cervical dislocation and a suspension of Sarcoma 180 cells was harvested from the intraperitoneal ... See full document