Downwardly Converging Tandem Planes

Converging Hands or Converging Minds?

Interlocutors sometimes repeat each other’s representational hand gestures. We investigated if this is a case of direct mimicry of form, or whether perceiving a gesture gives rise to a semantic representation, which subsequently informs gesture production. For this we used an interactive route description task, in which a confederate’s gestures indicated the route in either the vertical or the ...

NBIC, THE CONVERGING TECHNOLOGIES

Are nominal wages downwardly rigid? Evidence from Belgian microdata

It is sometimes argued that resistance to nominal wage cuts would justify a moderate amount of inflation in order to “grease the wheels of the labour market”. While empirical studies tend to find that nominal wages are not downwardly rigid in Anglo-Saxon economies, a number of studies suggest that downward nominal wage rigidity is more widespread among continental European countries. This paper...

Breakdown of air pockets in downwardly inclined sewerage pressure mains.

In the Netherlands, wastewater is collected in municipal areas and transported to centralised WWTPs by an extensive system of pressure mains. Over the last decades these pressure mains did not receive much attention in terms of monitoring of performance or maintenance. A recent inventory showed that half of the pressure mains show an increased pressure loss for no directly obvious reason. One o...

A remark on the converging-input converging-state property

Suppose that an equilibrium is asymptotically stable when external inputs vanish. Then, every bounded trajectory which corresponds to a control which approaches zero and which lies in the domain of attraction of the unforced system, must also converge to the equilibrium. This “well-known” but hard-to-cite fact is proved and slightly generalized here.