The super-Brownian motion X % in a super-Brownian medium % constructed in DF96a] is known to be persistent (no loss of expected mass in the longtime behaviour) in dimensions one ((DF96a]) and three ((DF96b]). Here we ll the gap in showing that persistence holds also in the critical dimension two. The key to this result is that in any dimension (d 3); given the catalyst, the variance of the proc...

Fluorinated organic compounds have found broad application in the pharmaceutical, and agrochemical industries as well as in medical diagnostics. The impetus for the application of organouorine compounds in agrochemical and pharmaceutical products is their benecial pharmacokinetic properties, such as high metabolic stability and lipophilicity. The useful radionuclear properties of the unnatura...

Pentavalent organo-vanadates have been used extensively to mimic the transition state of phosphoryl group transfer reactions. Here, decavanadate (V(10)O(28)6-) is shown to be an inhibitor of catalysis by bovine pancreatic ribonuclease A (RNase A). Isothermal titration calorimetry shows that the Kd for the RNase A decavanadate complex is 1.4 microM. This value is consistent with kinetic measurem...

Esta revisão cobre os principais eixos de pesquisa desenvolvidos nas Universidades Livres de Bruxelas entre 1961 e 2001. Primeiro, introduzimos os conceitos desenvolvidos no campo das reações de quebra das ligações carbono-estanho em compostos RR’R”R”’Sn usando reagentes E-N, obtendo-se R-E e R’R”R”’SnN, em solventes nucleofilos e não nucleofilos. A adição do nucleofilo ao íon metálico é necess...

Sir, the recent report on acute organo-phosphorus pesticide poisoning, oxidative damage, haemoglobin level and total leukocyte is very interesting [1]. Hundekari et al. noted that “cholinesterase inhibition may initiate cellular dysfunction leading to acetylcholine induced oxidative damage [1].” This work is very useful information in clinical toxicology. However, there are many points to be co...

A new organo-soluble [60]fullerene hexaadduct bearing twelve thiocyanate functions has been synthesized and successfully used as a stabilizing/assembling agent to assemble homogeneous sub-3 nm gold nanoparticles into extended tridimensional networks.

The subphase adsorption behavior and the morphology of trypsin enzyme, lysozyme cytochrome C protein, glucose oxidase present on Langmuir monolayer organo-modified single-wall carbon nanotubes (SWCNTs) were investigated. Furthermore, we estimated maintenance characteristics three-dimensional structure SWCNT film-adsorbed biomolecules when exposed to a high-temperature environment. In this study...