A previously unknown group of flies is described whose males exhibit directional asymmetry, in that the left wing is larger than, and of a different shape from, the right wing. To our knowledge, wing asymmetry of this degree has not previously been reported in an animal capable of flight. Such consistent asymmetry must result from a left-right axis during development, a level of differentiation...

In this paper, the equation of motion of an elastic 2 DoF wing model has been derived using Lagranges method. The aerodynamic loads on the wing were calculated via the Strip-Theory and the effect of compressibility was included. Wing deflections due to bending and twist motions were determined using the Assume-Mode method. The aeroelastic equations were solved numerically using the V-g method. ...

In 1987-2001 unemployment and inßation have the opposite inßuences on the popularities of Finnish and Swedish leftist and rightist parties. The popularities of the Finnish right-wing (left-wing) parties decrease (increase) when unemployment and inßation increase but in Sweden the opposite happens although the countries experience simultaneously an economic crisis. Fitting a threshold model in t...

What was the impact of 2014–2016 refugee crisis on immigration attitudes and national identification in Europe? Several studies show that radical right parties benefitted electorally from crisis, but research also shows anti-immigration did not increase. We hypothesize affected right-wing citizens differently than left-wing citizens. test this hypothesis by combining individual level survey dat...

Insects of the order Orthoptera are well-known for their acoustic communication. The structures used for this purpose show a high diversity which obviously relates to differences in song parameters and to the physics of sound production. Here we describe song and morphology of the sound producing organs of a tropical bush-cricket, Ectomoptera nepicauda, from East Africa. It has a very unusual c...