King G.,Bloorview Research Institute |
Zwaigenbaum L.,Glenrose Rehabilitation Hospital |
Bates A.,Parent Informant |
Baxter D.,City of London |
Rosenbaum P.,McMaster University
Child: Care, Health and Development | Year: 2012
Background Much is known about the hardships associated with parenting a child with a disability, but few studies have examined the broader contributions of the child to family life or society. Methods The study involved qualitative analysis of interviews with 16 families of children with autism spectrum disorder or Down syndrome at critical transition periods (entry to elementary or high school), targeting their perceptions of benefits. Results Parents discussed a wide range of benefits beyond the personal level, including parental, family and societal benefits. Exploratory group comparisons indicated that parents of high school-aged children were more likely to mention family-level and societal benefits. Conclusions The findings suggest that raising a child with a disability can trigger role-related decisions that lead to a series of resiliency-related processes and cascading benefits. The findings inform practitioners about the nature of potential positive experiences that can be shared with families starting out on their journey, allowing parents to recognize the positive dimensions of raising a child with a disability in addition to the hardships. © 2011 Blackwell Publishing Ltd.
Kim E.J.,University of Western Ontario |
Herrera J.E.,University of Western Ontario |
Huggins D.,City of London |
Braam J.,City of London |
Koshowski S.,City of London
Water Research | Year: 2011
High lead levels in drinking water are still a concern for households serviced by lead pipes in many parts of North America and Europe. This contribution focuses on the effect of pH on lead concentrations in drinking water delivered through lead pipes. Though this has been addressed in the past, we have conducted a combined batch, pipe loop and sentinel study aiming at filling some of the gaps present in the literature. Exhumed lead pipes and water quality data from the City of London's water distribution system were used in this study. As expected, the lead solubility of corrosion scale generally decreased as pH increased; whereas dissolution of other accumulated metals present in the corrosion scale followed a variety of trends. Moreover, dissolved arsenic and aluminum concentrations showed a strong correlation, indicating that the aluminosilicate phase present in the scale accumulates arsenic. A significant fraction of the total lead concentration in water was traced to particulate lead. Our results indicate that particulate lead is the primary contributor to total lead concentration in flowing systems, whereas particulate lead contribution to total lead concentrations for stagnated systems becomes significant only at high water pH values. © 2011 Elsevier Ltd.
Purvis O.W.,Natural History Museum in London |
Tittley I.,Natural History Museum in London |
Chimonides P.D.J.,Natural History Museum in London |
Bamber R.,Natural History Museum in London |
And 4 more authors.
Systematics and Biodiversity | Year: 2010
Long-term monitoring began 20 years ago at Burnham Beeches Site of Special Interest (SSSI), National Nature Reserve (NNR) and European Special Area of Conservation (SAC) lying 40 km west of London as a consequence of the authorization of an application to extract gravel from an adjacent site lying north of Slough Trading Estate. Dust monitoring (sticky pads) and photographic monitoring, recording and image analysis was instigated in 1992 on Parmelion communities to assess changes in lichen growth, health and community composition. Long-term monitoring identifies that the lichen flora on free-standing trees has undergone rapid expansion from a near dominance by the SO2-tolerant 'acidophyte' species Lecanora conizaeoides and Hypogymnia physodes following reductions in SO2 concentrations. Long-term influences of low levels of eutrophication, gaseous pollutants (particularly globally rising background ozone concentrations) on lichen and bryophyte communities and succession under changing climatic conditions are unknown. Soil-plant relationships, lichen-invertebrate interactions and a pollution legacy must also be considered. © 2010 The Natural History Museum.
Shahata K.,City of London |
Zayed T.,Concordia University at Montréal
Journal of Construction Engineering and Management | Year: 2016
Decision-makers frequently argue that municipal infrastructure is at risk. Given the current state of risk for infrastructure, municipalities face challenging decisions to plan the integrated repair/renewal of road, water, and sewer (RWS) networks. The research presented in this article identifies a methodology and framework that facilitates decision-making processes used during corridor rehabilitation project planning. A risk-based decision-making approach is developed to aid integrating repair/renewal of RWS assets. The risk model was developed using a mixed Delphi-Analytical Hierarchy Process approach. The impacts of four main consequences of failure with eighteen subfactors were considered. The RWS networks indices were amalgamated and grouped into an overall integrated risk index using K-means Clustering technique. Data provided by the City of Guelph was used in a case study in order to demonstrate the model features. Results show that pipe/road size and accessibility factors had the highest impact on the integrated risk index. The developed models can be used by researchers and practitioners (municipal engineers and consultants) to prioritize corridor rehabilitation projects thereby easing the challenge faced by stakeholders regarding the future of municipal infrastructure. © 2015 American Society of Civil Engineers.