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Distinct regulation of p53-mediated apoptosis by protein kinase calpha, delta, ...

The role of individual protein kinase C (PKC) isoforms in the regulation of p53- mediated apoptosis is still uncertain. Using yeast cells co-expressing the human wild-type p53 and a single mammalian PKCa, d, e or z, we showed a differential regulation of p53- mediated apoptosis by these PKC isoforms. Whereas PKCa and z had no effect on p53 activity, PKCd and e stimulated a p53-mediated mitochondria-dependent ap...

Surface modification of titanium by plasma nitriding

A systematic investigation was undertaken on commercially pure titanium submitted to plasma nitriding. Thirteen different sets of operational parameters (nitriding time, sample temperature and plasma atmosphere) were used. Surface analyses were performed using X-ray diffraction, nuclear reaction and scanning electron microscopy. Wear tests were done with stainless steel Gracey scaler, sonic apparatus and pin-on...

Novos desenvolvimentos tecnológicos para o estudo e exploração dos oceanos: per...

Surface modification of titanium by plasma nitriding

A systematic investigation was undertaken on commercially pure titanium submitted to plasma nitriding. Thirteen different sets of operational parameters (nitriding time, sample temperature and plasma atmosphere) were used. Surface analyses were performed using X-ray diffraction, nuclear reaction and scanning electron microscopy. Wear tests were done with stainless steel Gracey scaler, sonic apparatus and pin-on...

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