The recent proliferation of private tourist accommodations on what has been known as sharing economy induced new models urban tourism and the use traditional housing. Urban pressure caused many transformation processes with important impacts in neighborhoods high interest, which are shown evolution certain sustainability indicators, such those proposed by UN-Habitat Agenda for Sustainable Citie...

This paper studies whether agents must agglomerate at a single location in a class of models of two-sided interaction. In these models there is an increasing returns effect that favors agglomeration, but also a crowding or market-impact effect that makes agents prefer to be in a market with fewer agents of their own type. We show that such models do not tip in the way the term is commonly used....

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BACKGROUND Recent toxicological and epidemiological evidence suggests that chronic psychosocial stress may modify pollution effects on health. Thus, there is increasing interest in refined methods for assessing and incorporating non-chemical exposures, including social stressors, into environmental health research, towards identifying whether and how psychosocial stress interacts with chemical ...

An important and largely unstudied aspect of the apparent relation between residential crowding and mental health is the potential role of environmental design to moderate this relation. An epidemiological investigation reveals that the type of housing children inhabit alters mental health correlates of residential crowding. Third and fourth grade Austrian children (n=1,236) from small towns an...

A letter in the peripheral visual field is much harder to identify in the presence of nearby letters. This is "crowding." Both crowding and ordinary masking are special cases of "masking," which, in general, refers to any effect of a "mask" pattern on the discriminability of a signal. Here we characterize crowding, and propose a diagnostic test to distinguish it from ordinary masking. In ordina...