369 research outputs found

    Factoid Forensics: Have “more than 40” Australian families abandoned their homes because of wind farm noise?

    Get PDF
    Background Anti wind farm activists repeatedly claim that families said to be adversely affected by noise from wind turbines “abandon” their homes. In Australia, a claim of “more than 40 families” has been made by a prominent anti wind farm activist. Methods Six sources (parliamentary submissions, media reports, an anti wind farm website, wind industry sources, correspondence with known anti wind farm activists, and with three politicians opposed to wind farms) were used to find evidence of home “abandonments”. Results Claims about 12 Australian households permanently (n=10) or periodically (n=2) leaving their homes were found. However, no house appears to have been permanently “abandoned” without sale, as the expression implies. These 12 cases need contextualizing against considerations that several of those involved were either dedicated activists against wind farms from times sometimes pre-dating their construction, were engaged in protracted negotiations for home purchase with wind companies, had pre-existing health problems, grievances with the wind company over employment or had left the area for unrelated reasons of employment elsewhere. Conclusions The statement that “more than 40” houses have been “abandoned” because of wind turbines in Australia is a factoid promoted by wind farm opponents for dramatic, rhetorical impact. Other considerations are often involved in abandonment unrelated to the claims made about wind farm noise

    A functional model for primary visual cortex

    Get PDF
    Many neurons in mammalian primary visual cortex have properties such as sharp tuning for contour orientation, strong selectivity for motion direction, and insensitivity to stimulus polarity, that are not shared with their sub-cortical counterparts. Successful models have been developed for a number of these properties but in one case, direction selectivity, there is no consensus about underlying mechanisms. This thesis describes a model that accounts for many of the empirical observations concerning direction selectivity. The model comprises a single column of cat primary visual cortex and a series of processing stages. Each neuron in the first cortical stage receives input from a small number of on-centre and off-centre relay cells in the lateral geniculate nucleus. Consistent with recent physiological evidence, the off-centre inputs to cortex precede the on-centre inputs by a small interval (~4 ms), and it is this difference that confers direction selectivity on model neurons. I show that the resulting model successfully matches the following empirical data: the proportion of cells that are direction selective; tilted spatiotemporal receptive fields; phase advance in the response to a stationary contrast-reversing grating stepped across the receptive field. The model also accounts for several other fundamental properties. Receptive fields have elongated subregions, orientation selectivity is strong, and the distribution of orientation tuning bandwidth across neurons is similar to that seen in the laboratory. Finally, neurons in the first stage have properties corresponding to simple cells, and more complex-like cells emerge in later stages. The results therefore show that a simple feed-forward model can account for a number of the fundamental properties of primary visual cortex

    What Is Strategy In Urban Mobility Systems?

    Get PDF
    Institute of Transport and Logistics Studies. Faculty of Economics and Business. The University of Sydne

    Report of the Sydney Women and Sexual Health (SWASH) Survey 2006, 2008, 2010, 2012, 2014

    Get PDF
    The Sydney Women and Sexual Health (SWASH) survey is a comprehensive survey of important health issues relevant to lesbian, bisexual and queer (LBQ) women including sexual health and wellbeing, violence, mental health, tobacco use, illicit drug use, alcohol consumption, and cancer screening behaviours. This report presents results from surveys conducted at the Sydney Gay and Lesbian Mardi Gras Fair Day and other community events and venues during the Sydney Gay and Lesbian Mardi Gras seasons in 2006, 2008, 2010, 2012, and 2014. It highlights several health issues of particular concern – many of which have persisted over time – where mainstream preventive health interventions that are inclusive of this group or targeted to LBQ, are needed.ACON (formerly the AIDS Council of NSW) is NSW’s leading health promotion organisation specialising in HIV prevention, care and support, and lesbian, gay, bisexual, transgender and intersex (LGBTI) health
    • …
    corecore