Solid substrate cultures of moulds behave in quite a difTerent way to conventional submerged cultures. Catabolic repression often observed in submerged fermentation can easily be overcome by using solid state fermentation. A. niger strains can be grown by SSF technique with the following advantages: enzyme titres and productivity are usually higher; there is a tendency to early enzyme excretion...

The effects of lactose, galactose, glucose, and glucose combined with galactose on the induction of β–galactosidase by IPTG in Escherichia coli strain VC10, growing in a glycerol media, were compared against a control of glycerol plus IPTG. After inducing β– galactosidase production with the IPTG, the cultures were altered with the addition of one of the above carbohydrates or combinations. Thi...

As work organizations become increasingly gender diverse, existing theoretical models have failed to explain why such diversity can have a negative impact on idea generation. Using evidence from two group experiments, this paper tests theory on the effects of imposing a political correctness (PC) norm, one that sets clear expectations for how men and women should interact, on reducing interacti...

This paper studies the political economy of fertility. Specifically, I argue that fertility may be a strategic choice for ethnic groups engaged in redistributive conflict. I first present a simple conflict model where high fertility is optimal for each ethnic group if and only if the economy’s ethnic diversity is high and/or institutions are weak. I then test the model in a cross-national datas...

Decision making often entails conflict. In many situations, the symptoms of such decisional conflict are conspicuous. This article explores an important and unexamined question: How does observing someone else experiencing decisional conflict impact our own preferences? The authors show that observing others’ emotional conflict and agony over an impending decision makes the observer’s preferenc...

changes of hydrodynamic parameters in microchannel branches affect the suspended biological samples in blood. to prevent denaturation and hemolysis, we have numerically investigated the effect of divergence angle on shear rate and velocity at branch entrance (discharge rate), under electroosmotic flow. in such flow, hydrodynamic properties are also affected by zeta potential at the microchannel...

Rényi divergence is related to Rényi entropy much like Kullback-Leibler divergence is related to Shannon’s entropy, and comes up in many settings. It was introduced by Rényi as a measure of information that satisfies almost the same axioms as Kullback-Leibler divergence, and depends on a parameter that is called its order. In particular, the Rényi divergence of order 1 equals the Kullback-Leibl...