One of the most important challenges for embodied and grounded theories of cognition concerns the representation of abstract concepts, such as "freedom." Many embodied theories of abstract concepts have been proposed. Some proposals stress the similarities between concrete and abstract concepts showing that they are both grounded in perception and action system while other emphasize their diffe...

A 60 year old male farmer, chronic smoker, presented with complaints of productive cough since 1 month, swelling of the face and neck since 3 weeks and dyspnoea since 10 days, which was worse at night. There, was history of loss of appetite and considerable weight loss. There was no history of fever. On examination vitals were stable. The patient had right cervical lymphadenitis and right supra...

We study sign-restricted matrices (SRMs), a class of rectangular ( 0 , ± 1 ) -matrices generalizing the alternating sign (ASMs). In an SRM each partial column sum, starting from row 1, equals or and is nonnegative. determine maximum number nonzeros in SRMs characterize possible sum vectors. Moreover, results on interchange operations are shown, both for and, more generally, -matrices. The Bruha...