Ky visit

Police cordon on Brisbane street during visit of former South Vietnamese vice president Nguyen Cao Ky to Australia in January 1967.

Demonstrations during Marshall Ky's visit to Brisbane, Australia in 1967

Demonstrations during visit of former South Vietnamese vice president Nguyen Cao Ky to Australia in January 1967.

Ky's visit - do gifts justify more conscripts?

Woman with placard during visit of former South Vietnamese vice president Nguyen Cao Ky to Brisbane, Australia in January 1967.

Police during Ky visit

Police and demonstrators during visit of former South Vietnamese vice president Nguyen Cao Ky to Brisbane, Australia in January 1967. One of the policemen possibly John O'Gorman?

Crowd scene during Ky visit to Brisbane

Crowd scene during visit of former South Vietnamese vice president Nguyen Cao Ky to Brisbane, Australia in January 1967.

Hec (Hector) Chalmers speaking to newsmen during Ky visit

Hec (Hector) Chalmers speaking to newsment during visit of former South Vietnamese vice president Nguyen Cao Ky to Brisbane, Australia in January 1967.

Ky visit

Group of people during visit of former South Vietnamese vice president Nguyen Cao Ky to Brisbane, Australia in January 1967.

Hughie Hamilton, Alex McDonald during Ky visit demonstration

Group of people including Hughie Hamilton, Alex McDonald and Vilma Ward during visit of former South Vietnamese vice president Nguyen Cao Ky to Brisbane, Australia in January 1967.

Group outside the Sub Inspector Office during Ky visit

Group of people outside the Sub Inspector Office during visit of former South Vietnamese vice president Nguyen Cao Ky to Brisbane, Australia in January 1967.

Worker cleaning up after demonstration during Ky visit to Brisbane

Worker cleaning up leaflets after demonstration during visit to Brisbane of Former South Vietnamese vice president Nguyen Cao Ky in January 1967.

Leaflets left in gutter after Ky demonstration Brisbane, Australia

Leaflets in gutter after demonstration of former South Vietnamese vice president Nguyen Cao Ky to Brisbane, Australia in January 1967.

Go home fascist

Girls with placard during visit of former South Vietnamese vice president Nguyen Cao Ky to Brisbane, Australia in January 1967. Placard reads Go home fascist

Go home fascist 2

Girl with placard Go home fascist during visit of former South Vietnamese vice president Nguyen Cao Ky to Brisbane, Australia in January 1967.

Convergencia de vías de señalización en un modelo de apoptosis

La sepsis es un evento inflamatorio generalizado del organismo inducido por un daño causado generalmente por un agente infeccioso. El patógeno más frecuentemente asociado con esta entidad es el Staphylococcus aureus, responsable de la inducción de apoptosis en células endoteliales debida a la producción de ceramida. Se ha descrito el efecto protector de la proteína C activada (PCA) en sepsis y su relación con la disminución de la apoptosis de las células endoteliales. En este trabajo se analizó la activación de las quinasas AKT, ASK1, SAPK/JNK y p38 en un modelo de apoptosis endotelial usando las técnicas de Western Blotting y ELISA. Las células endoteliales (EA.hy926), se trataron con C2-ceramida (130μM) en presencia de inhibidores químicos de cada una de estas quinasas y PCA. La supervivencia de las células en presencia de inhibidores químicos y PCA fue evaluada por medio de ensayos de activación de las caspasas 3, 7 y 9, que verificaban la muerte celular por apoptosis. Los resultados evidencian que la ceramida reduce la activación de AKT y aumenta la activación de las quinasas ASK, SAPK/JNK y p38, en tanto que PCA ejerce el efecto contrario. Adicionalmente se encontró que la tiorredoxina incrementa la activación/fosforilación de AKT, mientras que la quinasa p38 induce la defosforilación de AKT.

Synchrotron X-ray powder diffraction and extended X-ray absorption fine structure spectroscopy studies on nanocrystalline ZrO(2)-CaO solid solutions

The crystal structure and the local atomic order of a series of nanocrystalline ZrO(2)-CaO solid solutions with varying CaO content were studied by synchrotron radiation X-ray powder diffraction and extended X-ray absorption fine structure (EXAFS) spectroscopy. These samples were synthesized by a pH-controlled nitrate-glycine gel-combustion process. For CaO contents up to 8 mol%, the t' form of the tetragonal phase (c/a > 1) was identified, whereas for 10 and 12 mol% CaO, the t '' form (c/a=1; oxygen anions displaced from their ideal positions in the cubic phase) was detected. Finally, the cubic phase was observed for solid solutions with CaO content of 14 mol% CaO or higher. The t'/t '' and t ''/cubic compositional boundaries were determined to be at 9 (1) and 13 (1) mol% CaO, respectively. The EXAFS study demonstrated that this transition is related to a tetragonal-to-cubic symmetry change of the first oxygen coordination shell around the Zr atoms.