Pope as media star: a long career full of reinvention

On the whole, a man who is elected as Pope is well on in years. Some, despite this, have managed to reign for a long time, Leo XIII for instance who came to the throne when he was already seventy in 1878, reigned for twenty five years. Wojtyla was elected when he was only fifty eight, in 1978. In the last century or so, the papacy has become visible worldwide through the mass media. On his accession, Wojtyla was presented as a man's man, a sportsman - according to Professor Eamon Duffy of Cambridge University - as a Bishop with balls. Like other media stars who have stayed the test of time, e.g. Madonna, David Bowie, it seems that he has been able to reinvent his media image to some extent; from the active sportsman to the benevolent grandfather to the ailing figure we see today. He has taken on the aspect of a media star, a world traveller, a spiritual leader, a politician, a mediator and a peace leader. He has been described as the most-photographed person on the planet. This paper will attempt to trace these changes and to ascertain, using Vatican and media sources to discover how much of this continual change is driven by the personality of John Paul himself and how much is a deliberate policy on the part of the Vatican.

Laccase from Aspergillus niger: A novel tool to graft multifunctional materials of interests and their characterization

In the present study, we propose a green route to prepare poly(3-hydroxybutyrate) [(P(3HB)] grafted ethyl cellulose (EC) based green composites with novel characteristics through laccase-assisted grafting. P(3HB) was used as a side chain whereas, EC as a backbone material under an ambient processing conditions. A novel laccase obtained from Aspergillus niger through its heterologous expression in Saccharomyces cerevisiae was used as a green catalyst for grafting purposes without the use of additional initiator and/or cross-linking agents. Subsequently, the resulting P(3HB)-g-EC composites were characterized using a range of analytical and imagining techniques. Fourier transform infrared spectroscopy (FT-IR) spectra showed an increase in the hydrogen-bonding type interactions between the side chains of P(3HB) and backbone material of EC. Evidently, X-ray diffraction (XRD) analysis revealed a decrease in the crystallinity of the P(3HB)-g-EC composites as compared to the pristine individual polymers. A homogeneous P(3HB) distribution was also achieved in case of the graft composite prepared in the presence of 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) as a mediator along with laccase as compared to the composite prepared using pure laccase alone. A substantial improvement in the thermal and mechanical characteristics was observed for grafted composites up to the different extent as compared to the pristine counterparts. The hydrophobic/hydrophilic properties of the grafted composites were better than those of the pristine counterparts.