The language of plans

This dissertation explores some of the interesting and important connections between language and plans. After some scene-setting in Chapter 1, Chapter 2 “Dynamic Plan Semantics” develops a dynamic semantics for declaratives, imperatives, questions and more complex constructions, where the meaning of these constructions are the ways in which they update plans. This dynamic semantics is used to solve a few puzzles involving imperatives. Chapter 3 "What's It Take to Have a Plan?" takes the formal tree-structures used to model plans in Chapter 2 and shows how to model them using Mental State Discourse Representation Theory (MSDRT). In doing so, we gain some insight on what it takes to entertain and commit to a plan. Chapter 4 "Non-declarative Sobel Sequences" turns our attention to conditional plans and Sobel sequences. A novel pragmatic explanation for why reversing the order of the conditionals in a Sobel sequences results in an infelicitous sequence is proposed, which sees these Sobel sequences as part of the more general phenomenon of exception making. Chapter 5 consists of some concluding remarks.Philosoph

Social determinants of depression among mid-to-older aged Australians:A prospective study of the effects of neighbourhood disadvantage and crime

BACKGROUND: Few studies examining social determinants of depression have incorporated area level objectively measured crime combined with self-report measures of perceived crime. How these factors may interrelate with neighbourhood disadvantage is not well understood, particularly in Australia, where mental health disorders are of major concern. This study examined relationships between area-level objective crime, self-reported perceptions of crime, neighbourhood disadvantage and depression, and potential mechanisms by which these variables indirectly lead to depression. METHODS: This study used data from the HABITAT Project, a representative longitudinal study of persons aged 40–65 years residing in 200 neighbourhoods in Brisbane, Australia, during 2007–2016. A prospective sample of residentially stable persons who reported depression at two years (n =3120) and five years (n=2249) post-follow-up was developed. Area level objective crimes were categorised as either crimes against the person, social incivilities or unlawful entry. Logistic regression was used to establish relationships with depression, followed by a decomposition analysis to establish potential mechanisms. RESULTS: Neighbourhoods in the highest quartile of crimes against the person had an increased risk of individuals reporting depression at all periods of follow-up. Associations were also found between unlawful entry and depression. Decomposition analysis indicated a positive and significant total effect of crime against the person on depression for all periods of follow-up, while an indirect effect of perceived crime was found to partially explain this relationship at 2-years after baseline (prop. Mediated = 46.5%), and at either or both periods of follow-up (prop. Mediated = 53.7%), but not at 5-years follow-up. DISCUSSION: Neighbourhoods with the highest levels of crime against the person may influence depression over time through a pathway of perceived crime. Perceived crime, particularly in areas of high crime against the person should be considered as part of a multi-faceted strategy aimed at improving population mental health

Is Walk Score associated with hospital admissions from chronic diseases? Evidence from a cross-sectional study in a high socioeconomic status Australian city-state

Objectives: To explore patterns of non-communicable diseases (NCDs) in the Australian Capital Territory (ACT).To ascertain the effect of the neighbourhood built environmental features and especially walkability on health outcomes, specifically for hospital admissions from NCDs. Design: A cross-sectional analysis of public hospital episode data (2007–2013). Setting: Hospitalisations from the ACT, Australia at very small geographic areas. Participants: Secondary data on 75 290 unique hospital episodes representing 39 851 patients who were admitted to ACT hospitals from 2007 to 2013. No restrictions on age, sex or ethnicity. Main exposure measures: Geographic Information System derived or compatible measures of general practitioner access, neighbourhood socioeconomic status, alcohol access, exposure to traffic and Walk Score walkability. Main outcome measures: Hospitalisations of circulatory diseases, specific endocrine, nutritional and metabolic diseases, respiratory diseases and specific cancers. Results: Geographic clusters with significant high and low risks of NCDs were found that displayed an overall geographic pattern of high risk in the outlying suburbs of the territory. Significant relationships between neighbourhood walkability as measured by Walk Score and the likelihood of hospitalisation with a primary diagnosis of myocardial infarction (heart attack) were found. A possible relationship was also found with the likelihood of being hospitalised with 4 major lifestylerelated cancers. Conclusions: Our research augments the growing literature underscoring the relationships between the built environment and health outcomes. In addition, it supports the importance of walkable neighbourhoods, as measured by Walk Score, for improved health.Full Tex

Ecological study of playground space and physical activity among primary school children

OBJECTIVES: To examine the relationship between school playground size and total physical activity (PA), fitness and fundamental movement skills (FMS) of primary school students. DESIGN: Cross-sectional ecological analysis. SETTING: 43 primary schools in New South Wales, Australia. PARTICIPANTS: Data were from 5238 students, aged 5 to 12 years, participating in the Schools Physical Activity and Nutrition Survey. OUTCOME MEASURES: Self (for age ≥11 years) and parent (for age <11 years) report of PA (meeting PA recommendations and number of days meeting recommendations), objectively measured FMS and cardiorespiratory and muscular fitness. RESULTS: Associations between playground space and measures of PA and fitness were mostly non-linear and moderated by loose equipment. Students in schools with no loose equipment showed a weak association between space and meeting PA recommendations (self-report). In schools with equipment, students' predicted probability of meeting PA recommendations increased sharply between 15 m2 and 25 m2 per student from 0.04 (95% CI: 0.01 to 0.08) to 0.30 (95% CI: 0.14 to 0.46), but at 30 m2 returned to levels comparable to students in schools with no equipment (0.18, 95% CI: 0.07 to 0.28). For cardiorespiratory fitness, in schools with no loose equipment, probabilities for being in the healthy cardiovascular fitness zone varied between 0.66 and 0.77, showing no consistent trend. Students in schools with loose equipment had a predicted probability of being in the healthy fitness zone of 0.56 (95% CI: 0.41 to 0.71) at 15 m2 per student, which rose to 0.75 (95% CI: 0.63 to 0.86) at 20 m2 per student. There was no relationship between space and FMS. CONCLUSIONS: School space guidelines need to incorporate sufficient playground space for students. Our study provides evidence supporting better PA outcomes with increasing space up to 25 m2 per student, and access to loose equipment, however further research is required to determine precise thresholds for minimum space. Intersectoral planning and cooperation is required to meet the needs of growing school populations

Diagreement, Internalism and Genuine Assertions of PPTs

The problem of lost disagreement is seen as a problem for contextualists when it comes to providing an account of predicates of personal taste (further referred to as PPTs). If Mary says, “The chili is tasty� and John says “The chili is not tasty� we would take there to be a disagreement between them. However, if what Mary means is “The chili is tasty [for Mary]� and what John means is “The chili is not tasty [for John]� then it seems like the disagreement between them simply vanishes. Peter Lasersohn argues that the problem of lost disagreement causes intractable problems for contextualists who appeal to speaker indexicalism or group indexicalism in explaining how PPTs function. Contra Lasersohn, Michael Glanzberg believes that contextualists are able to provide an account of PPTs that is able to skirt around the problem of lost disagreement. However, a problem remains for Glanzberg in that the only disagreement his account allows for arises in cases where both speakers are not making genuine assertions of PPTs. In order to show where Glanzberg’s account goes wrong, I use the work of R.M. Hare to motivate an account of the nature of genuine assertions of PPTs that is based on motivational judgment internalism. After arguing why we should accept such an account of genuine assertions of PPTs, I then go on to show why Glanzberg’s account does not give us disagreement in cases involving them. Viewed in such a way, we find that Glanzberg has not given us a contextualist account that can overcome the challenge posed by Lasersohn

Diagreement, Internalism and Genuine Assertions of PPTs

The problem of lost disagreement is seen as a problem for contextualists when it comes to providing an account of predicates of personal taste (further referred to as PPTs). If Mary says, “The chili is tasty� and John says “The chili is not tasty� we would take there to be a disagreement between them. However, if what Mary means is “The chili is tasty [for Mary]� and what John means is “The chili is not tasty [for John]� then it seems like the disagreement between them simply vanishes. Peter Lasersohn argues that the problem of lost disagreement causes intractable problems for contextualists who appeal to speaker indexicalism or group indexicalism in explaining how PPTs function. Contra Lasersohn, Michael Glanzberg believes that contextualists are able to provide an account of PPTs that is able to skirt around the problem of lost disagreement. However, a problem remains for Glanzberg in that the only disagreement his account allows for arises in cases where both speakers are not making genuine assertions of PPTs. In order to show where Glanzberg’s account goes wrong, I use the work of R.M. Hare to motivate an account of the nature of genuine assertions of PPTs that is based on motivational judgment internalism. After arguing why we should accept such an account of genuine assertions of PPTs, I then go on to show why Glanzberg’s account does not give us disagreement in cases involving them. Viewed in such a way, we find that Glanzberg has not given us a contextualist account that can overcome the challenge posed by Lasersohn

1000 Cities Challenge report: Canberra, Australia:Policy and spatial indicators for healthy and sustainable cities

This report outlines how the city of Canberra, Australia performs on a selection of spatial and policy indicators of healthy and sustainable cities