[PDF] Top 20 Braz. arch. biol. technol. - vol.48 número especial 2

... Crude venom saline extract was labeled with 99m Tc using stannous chloride and sodium borohydride as reducing agents according to Pauwels et al (Pauwels et al, 1993). Preliminary studies were done to establish the ... See full document

... radionuclide fell below 2% in all cases. A slight variation in radiochemical yield was observed, although not significant when the CT mass was varied at different incubation reaction times, as shown in Table 1. ... See full document

... in several organs. For this reason, it is essential to have an adequate analytical method to quantify the CDDP in studies performed in vivo. Atomic absorption spectrometry is frequently employed in this sort of ... See full document

... Thermogravimetry also allows evaluating water content in the sample. Soliman et al. (1997) used the limit of 150 ºC for such evaluation. It was observed that the loss of moisture and other easily volatile materials and ... See full document

... The amplified PCR products were not visible, probably due to insufficient DNA template. The preamplified product (12.6 µl) was then used in a second PCR amplification. This allowed the obtaining of a sufficient number of ... See full document

... 2 PRGHOR GH SURGXomR DGRWDGR QD VXLQRFXOWXUD EUDVLOHLUD SULQFLSDOPHQWH QD 5HJLmR 2HVWH GH 6DQWD&DWDULQDpIHLWDFRPRVDQLPDLVFRQILQDGRV HP SHTXHQDV iUHDV WUD]HQGR FRPR FRQVHTrQFLD ... See full document

... After removal from the molds, the specimens were transferred to a desiccator containing silica gel, maintained at 37°C for 22 h and then transferred to another desiccator at 23°C ± 2°C for 2 h. The ... See full document

... Whiteflies bioassays were carried out with the adult insects collected from the cabbage plants using the yellow sticky strips with 4 x 4 cm of exposed surface (Chortyk et al., 1997). Nine strips (replicates) were used ... See full document

... The mean feed consumption produced two distinct phases: one during the first 45 days, when the temperature was higher (27.7 ± 1.4ºC) and statistical differences were not verified among the treatments (P>0.05); another ... See full document

... Arabidopsis thaliana and rice encode for four DCL (DCL1, DCL2, DCL3 and DCL4) proteins with distinct functions. Although DCL1, together with HEN1 (Xie et al, 2004) and HYL1 has been previously shown to be involved in ... See full document

... Both of the fixing solutions of methanol and acid methanol did not conserve the cytoplasm, as can be seen in Figures 1b and 1c. Figure 1d showed an even poorer preservation when the smear was made in saline physiological ... See full document

... Eleven crude extracts from endophytic fungi were screened for their antibacterial activities against the standard ATCC bacterial strains. In this study, EtOAc and n-BuOH extracts showed higher antimicrobial activities ... See full document

... Achene without ornament of the tegument were light insensitive with germination under all tested light conditions. Achene with verrucose ornament of the tegument presented low germination under darkness and high ... See full document

... du Preez, J. C.; van Driessel, B. and Prior, B. A. (1989), D-xylose fermentation by Candida shehatae and Pichia stipitis at low dissolved oxygen levels in fed-batch cultures. Biotechnol Lett., 11(2), 131-136 ... See full document

... Figure 1 - Amylase activity and starch content of the pulp of mango ‘Tommy Atkins’ stored during 28 days under temperature of 12 ± 2 ° C and relative humidity of 90 ± 5 % in 4 day of maturation. Half healthy ... See full document

... continuously for 45 minutes, with the information accumulated in each three minutes sampling periods, followed by a 15 minutes resting period. Only the behavioral states were registered because of the distance between ... See full document

... showed the presence of low molecular weight proteins ranging from 10 000 to 12 500 (Fig. 2). Protein extracted intracellularly were of high molecular weight, ranging from 20 000 to 141000. The pI values also ... See full document

... temperature was maintained at 37 o ± 0.5 o C with a paddle rotation speed of 75 rpm (USP Apparatus 2). A sample was withdrawn from each of six vessels and analyzed for caffeine by UV absorbance at 274 nm using an ... See full document

... +DOIOLIH 7KH KDOIOLIH RI D UDGLRQXFOLGH ZLOO GHWHUPLQH WKH LQLWLDO GRVH UDWH DQG WKHUHIRUH WKH WRWDO DPRXQW RI UDGLRDFWLYLW\ WR EH DGPLQLVWHUHG :KDW LV DQ D[r] ... See full document

... The present experiment suggests that there was a chemical combination of molybdenum and MDP shown by the interaction of the complex with the mobile phase (NaCl 0,9[r] ... See full document