Identifying asthma triggers forms the basis of environmental secondary prevention. These triggers may be allergenic or nonallergenic. Allergenic triggers include indoor allergens, such as house dust mites (HDMs), molds, pets, cockroaches, and rodents, and outdoor allergens, such as pollens and molds. Clinical observations provide support for the role of HDM exposure as a trigger, although avoid...

Despite calls for a systems approach to assessing and preventing injurious incidents within the led outdoor activity domain, applications of systems analysis frameworks to the analysis of incident data have been sparse. This article presents an analysis of 1014 led outdoor activity injury and near miss incidents whereby a systems-based risk management framework was used to classify the contribu...

Little evidence exists on health care provider (HCP) prescriptions for children's outdoor physical activity (PA). Semistructured interviews were conducted with 15 children's HCPs to explore perspectives on outdoor PA prescription programs for children and barriers to implementation. Thematic analytic techniques were used to analyze the data. Most participants reported an awareness of health ben...

In this paper a framework for deriving highlevel scene attributes from low-level image features is presented. Examples of attributes derived are photo-painting, indoor-outdoor, night-day and nature-city. The assignment of the attributes to images is done by a hierarchical classification of the low level features, which capture colour, texture and spatial information. A prototype for image class...

Experience has shown that one of the biggest difficulties that students find while learning programming languages is the understanding of its abstract concepts, and this difficulty translates into a lack of motivation for learning. We propose the use of a collaborative virtual environment to allow students to program within the context of a business-like professional programming environment, ak...

Outdoor spaces play important roles in daily lives, and the use of these spaces is determined largely by outdoor thermal comfort. Few studies have been conducted on outdoor thermal comfort in northern China. Using microclimatic monitoring and subject interviews at a park in Tianjin, China, this investigation studied outdoor thermal comfort under different climate conditions. Although outdoor th...

Beautiful outdoor locations are protected by governments and have recently been shown to be associated with better health. But what makes an outdoor space beautiful? Does a beautiful outdoor location differ from an outdoor location that is simply natural? Here, we explore whether ratings of over 200 000 images of Great Britain from the online game Scenic-Or-Not, combined with hundreds of image ...