[PDF] Top 20 An. Acad. Bras. Ciênc. - vol.79 número4

... 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

... 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

... Given the nature of this article, qualitative meth- odologies were predominantly used when approaching the above setting. Concerning operational techniques and procedures, the following ones were performed: bibliographic ... See full document

... lungs, an increase in apoptotic cells has also been described, and may be associated not only with the extrinsic pathway, with enhanced expression of FasL and caspase, but also with mitochondrial pathway ... See full document

... The functionalities supplied by the PHP scripts for the Pulverizar program are as follows: insert student in database, register the moment of each student entry in the system, as well as register his/her exit, calculate ... See full document

... The mineral content found in fruits is presented as macro (Table I) and microminerals (Table II). The Dietary Reference Intakes (DRI), defined as the aver- age daily intake level sufficient for meeting the nutrient ... See full document

... Neuromuscular junction is the main target of snake venoms, some of which possessing strong pre-synaptic neurotoxins, such as the Crotoxin (CTX), a heterotri- meric Asp49-PLA 2 complex found in the Crotalus durissus ... See full document

... found at Brazilian savannas and can be also confused with H. glabra Hook & Arn., another similar but dif- ferent species used in Brazilian folk medicine as a seda- tive and anxiolytic agent (Galietta et al. 2005). ... See full document

... Recently, García de la Torre et al. (2010) and Ros- sato et al. (2010) reported that extinction itself, being one form of learning, can be subjected to reconsolida- tion in at least two different tasks in rats. Both ... 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

... Measurement of the quality of natural systems and its relation with agricultural systems is a difficult, if not controversial topic for researchers. Basically, agricul- tural systems are generally evaluated separately ... 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

... We are still far away from functionally identify- ing a significant proportion of the microbial genes by functional categories, but data compiled by Saccone and Pesole (2003) indicated that some of the most frequent were ... See full document

... From an anal- ysis of their in vitro properties, proteases may be classified on the basis of three major criteria: (i) type of reaction catalyzed, (ii) chemical nature of the catalytic site and (iii) evolutionary ... 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

... to an editorial line more concerned with reviews than original research ...of an author’s last name has been regarded as influential in citation potential (Tregenza 1997) and double-barreled names could end ... See full document

... have an accurate map of the genus’ geographical distribution since it records only the Brazilian species distribution, and makes it difficult to plan field trips to collect supple- mentary material of this ... 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 main method to calculate rainfall erosi- vity values requires pluviographic records. This kind of information is difficult to obtain in Brazil due to the reduced number and inadequate spatial distribution of ... See full document