Optimising the Use of REST for Mine Detection

Remote Explosive Scent Tracing (REST) is a detection technology involving the transfer of odours to an animal detector using filters. Like Remote Scent Tracing (RST), the technology could potentially be used to detect anything that has an odour. REST technology was used originally by Mechem in Mozambique and Angola in the early 1990s. Despite the potential it demonstrated at that time, it received little attention or investment through the late 1990s until a revival of interest occurred in recent years. Currently, it is being used operationally for mine detection in Afghanistan and is likely to be implemented for road clearance in Sudan and Angola by the end of 2004. It is also used operationally for explosives detection at several airports in Europe

The Effect of Reinforcement Rate Variations on Hits and False Alarms in Remote Explosive Scent Tracing with Dogs

Detection animals offer untapped potential in terms of locating landmines and explosive ordnance in the field and in the laboratory. In this study, the Geneva International Centre for Humanitarian Demining investigated the effect of low, medium, and high levels of reward on the performance of six dogs searching filters for explosive odor

The Role of Research in Mine Action: A Response to Gasser

Some years ago, a businessman came to me and said that he would like to start commercially farming lobsters, something that had not been attempted at the time. His key question was, “How long will the development research take?” “I would think two to four years before a scaling-up exercise to make it commercially viable,” I answered. Looking genuinely surprised he replied, “Really! I was thinking it should take about two weeks.” This anecdote portrays a problem that emerges in almost every area of human enterprise. Those-who-do want and need to do right now. Those-who-create need time to design, build, and prove their creation

Global Environmental Demining Issues

The environmental impact of any human action cannot be underestimated—even humanitarian demining—given the global repercussions in this era of explosive growth. The authors discuss the consequences of thoughtless action and provide valuable context concerning the vast extent to which human beings impact the environment

Effects of Weather on Detection of Landmines by Giant African Pouched Rats

Although APOPO has trained mine detection rats for many years, no published data exist on how weather parameters relate to detection accuracy. Using data taken during routine training, we show that there was little relationship between the detection success of rats and rainfall but find that rates decreased, on average, with increasing temperatures and increased with higher humidities. Individual rats vary in terms of sensitivity to temperature in tha

Environmental determinants of landmine detection by dogs: Findings from a large-scale study in Afghanistan

This article’s purpose is to examine the strengths and weaknesses of mine-detection dogs in different environments. The experiments employed a total of 39 dogs in Afghanistan between October 2002 and July 2003. The results are discussed here

Hyperbolic Discounting with Environmental Outcomes across Time, Space, and Probability

Environmental discounting is a potentially important research area for climate change mitigation. We aimed to replicate and extend earlier work on the discounting of a negative environmental outcome. We measured ratings of concern, and willingness to act to mitigate, an outcome involving air pollution that would hypothetically affect the garden and drinking water of the participants over psychological distance represented by temporal (1 month, 6 months, and 1, 3, 5, 10, and 80 years), spatial (5, 20, 50, 100, 1000, and 5000 km), and probabilistic (95%, 90%, 50%, 30%, 10%, and 5% likelihood) dimensions. For our data from 224 first-year psychology students, of four potential models (an exponential, simple hyperbolic, and two hyperboloid functions), the Rachlin hyperboloid was the best-fitting model describing ratings of concern and action across all three dimensions. Willingness to act was discounted more steeply than concern across all dimensions. There was little difference in discounting for outcomes described as human-caused rather than natural, except that willingness to act was discounted more steeply than concern for human-caused environmental outcomes compared to natural outcomes across spatial (and, less conclusively, temporal) distance. Presenting values of the three dimensions in random or progressive order had little effect on the results. Our results reflect the often-reported attitudebehavior gap whereby people maintain concern about a negative event over dimensions of psychological distance, but their willingness to act to mitigate the event is lower and more steeply discounted

Detection of Landmines by Dogs: Environmental and Behavioural Determinants

The overall aim of the study was to explore the effects of environmental variables on mine detection by dogs. Operational mine detection dogs were used to search for mines in a test mine field, near Kabul, Afghanistan. The key variable used in the analysis was whether a mine was found or missed by the dog. Measured during the study were: o Weather patterns through the year of the study. Weather variables (temperature, wind, humidity) at the time the dog crossed the mine. Dog behaviour. Vegetation over the mine. A soil sample was taken from over the mine and from a sample of false indication sites in each box. Analysis for explosive chemicals was by two labs using gas chromatography

Environmental Determinants of Landmine Detection by Dogs: Findings From a Large-scale Study in Afghanistan

This article\u27s purpose is to examine the strengths and weaknesses of mine-detection dogs in different environments. The experiments employed a total of 39 dogs in Afghanistan between October 2002 and July 2003. The results are discussed here

Mobile technologies in schools: The student voice

Intermediate and high school students spend a large amount of time using mobile devices (Lauricella, Cingel, Blackwell, Wartella, & Conway, 2014), and such devices are increasingly being integrated into our school system. We conducted a series of student-led focus groups, with this early adolescent cohort, in order to better understand their experiences of the recent technological shift. Four main ideas emerged from a thematic analysis of three focus group discussions: restrictions, student-led technology use, bypassing the restrictions, and connectivity as a need. Direct quotes from students and our analysis of these themes suggest that young people should be included, to a much greater extent, in discussions about the evolution of teaching practices in today’s digital age. Clear benefits and risks linked to greater use of mobile technologies were evident in our discussions, the implications of which are discussed along with limitations of the current study and proposed future research