Edward Tesdorpf.

Edward Tesdorpf

Many-body effects in the stimulated Raman response of binary mixtures:A comparison between theory and experiment

The subpicosecond dynamics of binary mixtures of carbon disulfide and alkane have been studied using third-order time-resolved Raman techniques. Both the anisotropic and the isotropic responses were investigated. These depend differently on many-body contributions to the first-order susceptibility and probe different modes in the liquid. The anisotropic response is dominated by single molecule effects, whereas the isotropic response is completely determined by many-body contributions since the single molecule response vanishes. To interpret the experimental results, molecular dynamics simulations were performed on model mixtures. The effect of dilution on the subpicosecond response cannot be explained by many-body effects in the first-order susceptibility alone. Aggregation due to permanent quadrupole moments on the carbon disulfide molecules and density changes upon dilution are also inadequate explanations for the observed effect. Apparently the character of the many-body dynamics itself is modified by the change of the molecular force fields, when carbon disulfide molecules are replaced by alkanes.<br/

Countdown to Annihilation: Genocide in Myanmar

This report analyses the persecution of the Rohingya against the six stages of genocide outlined by Daniel Feierstein: stigmatisation (and dehumanisation); harassment, violence and terror; isolation and segregation; systematic weakening; mass annihilation; and finally symbolic enactment involving the removal of the victim group from the collective history. The report concludes that the Rohingya have suffered the first four of the six stages of genocide. They have been, and continue to be, stigmatized, dehumanised and discriminated against. They have been harassed, terrorized and slaughtered. They have been isolated and segregated into detention camps and securitised villages and ghettos. They have been systematically weakened through hunger, illness, denial of civil rights and loss of livelihood. All of this places them at high risk of annihilation