Sweden has now been a Nato member for a year, marking a historic shift in its security policy. But what has this meant in ...

My attitude has been that when somebody in the government, whether it's our government or some other party's government, does the right thing or does something well, one should acknowledge and ...

Abstract: The unit quaternion is one of the most commonly utilized attitude representations because of its global representation and singularity-free properties. Nevertheless, the double cover ...