RNA localization is a conserved mechanism of establishing cell polarity. Vg1 mRNA localizes to the vegetal pole of Xenopus laevis oocytes and acts to spatially restrict gene expression of Vg1 protein. Tight control of Vg1 distribution in this manner is required for proper germ layer specification in the developing embryo. RNA sequence elements in the 3' UTR of the mRNA, the Vg1 localization ele...

Due to constantly increasing antibiotic resistance of pathogens and participation of the biofilms they make in various types of infections, a development of alternative therapeutic strategies becomes an urgent need. Taking advantage of the biological activity of plant-derived compounds can solve this problem. In this study antimicrobial, including those synergistic with classic antibiotics, and...

1569-190X/$ see front matter 2008 Elsevier B.V doi:10.1016/j.simpat.2008.11.003 * Corresponding author. Tel.: +33 5 61 28 54 36. E-mail addresses: [email protected] The cross-disciplinary activity of modelling and simulation is the core of the scientific activities addressing the complexity of nature. In this context, we need reliable computational environments to integrate heterog...

This paper presents the results of a study evaluating student perceptions of online assignment submission. 47 students submitted assignments and received feedback via features within the Virtual Learning Environment BlackboardTM. The students then completed questionnaires comparing their experience of online submission and feedback with traditional methods. Results indicated that 88% of student...

The aim of this paper is to bring valuable phase equilibria information for the design and operation biolubricant related biofuel product processes. As a result, Vapor-Liquid Equilibrium (VLE) measurements, at different temperatures, pressures global compositions, ternary systems [Ethanol + 2-Ethyl-1-hexanol 1-Dodecanol] 1-Octanol 1-Dodecanol], as well multicomponent system containing these alc...

Abstract Exact knowledge of natural gas composition is essential in custody transfer to determine the energy content delivery. However, for liquefied (LNG), a reliable determination difficult. Here, we describe design laboratory‐scale reference liquefier that enables validation and calibration optical spectroscopy sensors by providing them with sample metrologically traceable composition. Hence...

The introduction of virtual learning environments (VLEs) has been regarded by some as a panacea for many of the problems in today’s mass numbers modular higher education system. This paper demonstrates that VLEs can help or hinder student engagement and performance, and that they should be adapted to the different types of learner. A project is described that aimed to investigate whether the in...

Virtual learning is a popular teaching modality, and it has been reported in research that there is no significant difference in academic outcome as compared with face-to-face courses. Not all researchers agree with this assertion and some claim it is more difficult to teach math-oriented subjects online. Given that educational psychology theories are effective for teaching quantitative topics ...

Vapour-liquid equilibria (VLE) data are within the most important experimental data to correctly represent the mixtures' behaviour at the saturation boundaries. In the last years, the VLE of several new binary mixtures have been studied by our group in order to find possible alternatives for the traditional refrigerants. The data have been correlated with the Lemmon-Jacobsen model, which is the...