INTRODUCTION The aim of this in vitro study was to evaluate the dissolving efficacy of eucalyptol and orange oil solvents associated with passive ultrasonic activation (PUA) in zinc oxide-eugenol (ZOE) based and epoxy resin-based root canal sealers. METHODS AND MATERIALS Seventy samples of each sealer were prepared and then randomized according to the solvent and the time of the ultrasonic ac...

a ra gua) Erup tion on 28 July 2005 de pos its ash in nearby towns . . . . . . . . . . . . . . . . 2 Miyake-jima (Ja pan) SO2 flux con tin ues grad ual de cline; mi nor erup tions in No vem ber-De cem ber 2004 . . . 2 Kikai (Ja pan) Small erup tions dur ing March-Sep tem ber 2004 pro duce ash plumes . . . . . . . . . . . . . . . 4 Suwanose-jima (Ja pan) Erup tions dur ing April 2004-July 2005 s...

To improve the overall performance of polyurethane acrylic (PUAs) coatings applied to an iron or wood substrate, a modifier, trivinylisooctyl polyhedral oligomeric silsesquioxane (TVi7iso–POSS), was successfully synthesized by polycondensation reaction in presence organotin catalyst. TVi7iso–POSS is POSS derivative possessing three olefin and seven isooctyl bonds; its molecular structure confir...

Diatoms and other phytoplankton play a crucial role in the global carbon cycle, fixing CO2 into organic carbon, which may then be exported to depth via sinking particles. The molecular diversity of this organic carbon is vast and many highly bioactive molecules have been identified. Polyunsaturated aldehydes (PUAs) are bioactive on various levels of the marine food web, and yet the potential fo...

Diatoms are dominant photosynthetic organisms in the world's oceans and represent a major food source for zooplankton and benthic filter-feeders. However, their beneficial role in sustaining marine food webs has been challenged after the discovery that they produce secondary metabolites, such as polyunsaturated aldehydes (PUAs), which negatively affect the reproductive success of many invertebr...

Our understanding of the initial period of agriculture in the southwestern United States has been transformed by recent discoveries that establish the presence of maize there by 2100 cal. B.C. (calibrated calendrical years before the Christian era) and document the processes by which it was integrated into local foraging economies. Here we review archaeological, paleoecological, linguistic, and...

Overexpression of multiple copies in T-cell lymphoma-1 (MCT-1) oncogene accompanies malignant phenotypic changes in human lymphoma cells. Specific disruption of MCT-1 results in reduced tumorigenesis, suggesting a potential for MCT-1-targeted therapeutic strategy. MCT-1 is known as a cap-binding protein and has a putative RNA-binding motif, the PUA-domain, at its C-terminus. We determined the c...

An important issue for the implementation of a system using intelligent agents for controlling a telecommunication network, is to enable low-level access of the network devices by the agent platform, bypassing the control logic inherent in them. This issue has been successfully dealt within the research project IMPACT. This paper will describe how agents can be used to control ATM switches and ...

Abstract Background The identification of protein families is outstanding practical importance for in silico annotation and at the basis several bioinformatic resources. Pfam possibly most well known family database, built many years work by domain experts with extensive use manual curation. This approach generally very accurate, but it quite time consuming may suffer from a bias generated hand...