In the sequel, we propose a new neighbourhood structure for local search for the fuzzy job shop scheduling problem. This is a variant of the well-known job shop problem, with uncertainty in task durations modelled using fuzzy numbers and where the goal is to minimise the expected makespan of the resulting schedule. The new neighbourhood structure is based in changing the relative order of subse...

AIM To identify the extent to which homes and neighbourhoods of older community-dwelling people are 'supportive'. METHOD Cross-sectional survey, in-home observation and interviews involving 202 participants (75-79 years). Measures included SF-36 health-related quality of life and Late Life Function and Disability Instrument (LLFDI) scores, and self-reported home usability, access, safety and ...

BACKGROUND Some research concerned with place and health has used the study of opportunity structures in neighbourhoods to understand how place might get under the skin. It has become somewhat common to assume that objective indicators of opportunity structures are in some way equivalent to people's access to them. The general objective of this study, therefore, was to evaluate the level of con...

Objective. To explore how older people who are "aging in place" are affected when the urban neighbourhoods in which they are aging are themselves undergoing socioeconomic and demographic change. Methods. A qualitative case study was conducted in two contrasting neighbourhoods in Montréal (Québec, Canada), the analysis drawing on concepts of social exclusion and attachment. Results. Participants...

In this paper we propose a new hybrid heuristic for solving 0-1 mixed integer programs based on the principle of variable neighbourhood decomposition search. It combines variable neighbourhood search with a general-purpose CPLEX MIP solver. We perform systematic hard variable fixing (or diving) following the variable neighbourhood search rules. The variables to be fixed are chosen according to ...

BACKGROUND Mental health conditions are among the leading non-fatal diseases in middle-aged and older adults in Australia. Proximal and distal social environmental factors and physical environmental factors have been associated with mental health, but the underlying mechanisms explaining these associations remain unclear. The study objective was to examine the contribution of different types of...

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