. "Any process that activates or increases the frequency, rate or extent of sister chromatid cohesion." . . . . "positive regulation of sister chromatid cohesion" . "activation of sister chromatid cohesion" . "stimulation of sister chromatid cohesion" . "up regulation of sister chromatid cohesion" . "up-regulation of sister chromatid cohesion" . "upregulation of sister chromatid cohesion" . . . .