Psychoanalysts from Freud up to the present have defined the goal of mourning as the detachment of libidinal ties from the deceased love object. The author reviewed recent clinical and empirical literature that casts doubt on this assumption by showing that a continuing internal relationship with the lost object is found in many bereaved individuals. These data suggest a need to reconceptualize...

We prove that any category of props in a symmetric monoidal model category inherits a model structure. We devote an appendix, about half the size of the paper, to the proof of the model category axioms in a general setting. We need the general argument to address the case of props in topological spaces and dg-modules over an arbitrary ring, but we give a less technical proof which applies to th...

For a connected pasting scheme G, under reasonable assumptions on the underlying category, the category of C-colored G-props admits a cofibrantly generated model category structure. In this paper, we show that, if G is closed under shrinking internal edges, then this model structure on G-props satisfies a (weaker version) of left properness. Connected pasting schemes satisfying this property in...

There is currently no standard method for comparing autonomous capabilities between systems. We propose a test method for evaluating an automated mobile system’s ability to detect and avoid obstacles, specifically those in an industrial environment. To this end, a taxonomy is being generated to determine the relevant physical characteristics of obstacles so that they can be accurately represent...