AE Aquarii is a propeller system. It has the shortest spin period among cataclysmic variables, and this is increasing on a 10 yr timescale. Its UV spectrum shows very strong carbon depletion vs nitrogen and its secondary mass indicates a star far from the zero–age main sequence. We show that these properties strongly suggest that AE Aqr has descended from a supersoft X–ray binary. We calculate ...

background: maintaining a balance between cost-effectiveness and the delivery of quality patient care is a continual challenge to modern health care systems. in addition to negative effects on the patient and his family's quality of life, readmission after major surgeries imposes substantial adverse economic effects on the health care delivery system. therefore, causes of readmission to alzahra...

L’humanité dans les temps sombres. L’essai d’Hannah Arendt portant ce nom nous ramène à l’affirmation de Gotthold Ephraim Lessing selon laquelle la compassion est un problème en que, contrairement l’amitié, elle n’est pas sélective. Le caractère égalitaire se paye par l’absence cible. Pour Lessing, c’est sélectivité l’amitié seule que « vraie humanité » peut faire ses preuves. Les rapports d’ac...

A bstract We present examples of 5 d SCFTs that serve as counter-examples to a recently actively studied conjecture according which it should be possible obtain all by integrating out BPS particles from 6 compactified on circle. further observe is these if one allows strings well. Based this observation, we propose revised version the both and describe general procedure integrate theory once ge...