The role of E-portfolios in higher education: their perceived value and potential to assist undergraduate computing students

Whilst not a new concept, ePortfolios embrace the interactive nature of Web 2.0 technology and are beginning to show signs of bringing about a new pedagogy in education. The wide range of commercial and open source ePortfolio and associated tools currently available allows students to maintain an online repository of digital artefacts. These tools can facilitate reflective, collaborative and lifelong learning, and allow students to showcase skills, knowledge and understanding. A key benefit identified in the literature is the ability to create a personalised and reflective learning experience. Previous research has shown that the lack of competent and effective use of ePortfolios and the inability of students fully to recognise the benefits to them as learners, are hindering their widespread use. This paper focuses on a small pilot research project, which seeks to identify the Web 2.0 tools that students following undergraduate awards in technology subjects across various levels at the authors’ institution are currently using. It investigates the extent to which students keep a digital record of their learning and how they perceive ePortfolios as a learning tool. The students were surveyed by questionnaire providing quantitative data. Qualitative information was also gained by interviewing a smaller group of those students individually to ascertain whether they were able to identify the value of an ePortfolio and how they might envisage using one in their learning. The outcome of this initial study has helped to determine whether an ePortfolio application was worthy of further development and trialling as a subsequent project

Undergraduate students: interactive, online experiences and ePortfolio development

Results of a previous study by the authors into the perceived value and potential of ePortfolios to assist undergraduate students indicated that technology was an important aspect of their everyday lives. It was also felt it to be beneficial to their learning. A large percentage of students were found to be using digital techniques to store evidence of their learning, and were also using interactive, online tools in their learning activities. There was, however, little reported structured use of ePortfolio development in their learning. Students acknowledged they were discovering for themselves the value of online technologies in learning. This paper focuses on student skills and experiences of online tools on entry to university, and considers their experience of ePortfolio development using the Wordpress personal publishing platform. Results indicate that students’ skill level of online, interactive tools was high and wide-ranging. Although previous experience of using these tools was unstructured and informal, ePortfolio creation was found to be an engaging, relevant and worthwhile activity. The ePortfolio development exercise also provided an experiential learning experience, and had a positive effect on students’ attitudes to learning

Conditional Suppression of Advertisements Based on Data Cost

Mobile app publishers earn revenue from serving ads to users on their devices. In some cases, the ad revenue from an ad served on a user device is smaller than the direct cost incurred by the user for having the ad served on their user device. This disclosure describes techniques to automatically suppress ad serving on mobile devices based on direct costs. With user permission, the direct cost to the user from an ad request and subsequent ad served is estimated. Ad revenue associated with an ad impression is estimated and compared to the estimated direct cost. Based on the comparison, the ad is suppressed. Further, the user can be billed a charge based on an agreed upon mechanism and the publisher is credited with a portion of the charge

Radiological Protection of the Environment

Ecotoxicology offers a comprehensive overview of the science underpinning the recognition and management of environmental contamination. It describes the toxicology of environmental contaminants, the methods used for assessing their toxicity and ecological impacts, and approaches employed to mitigate pollution and ecological health risks globally. Chapters cover the latest advances in research, including genomics, natural toxins, endocrine disruption and the toxicology of radioactive substances. The second half of the book focuses on applications, such as cradle-to-grave effects of selected industries, legal and economic approaches to environmental regulation, ecological risk assessment, and contaminated site remediation. With short capsules written by invited experts, numerous case studies from around the world and further reading lists, this textbook is designed for advanced undergraduate and graduate one-semester courses. It is also a valuable reference for graduate students and professionals. Online resources for instructors and students are also available

Radiological Protection of the Environment

Ecotoxicology offers a comprehensive overview of the science underpinning the recognition and management of environmental contamination. It describes the toxicology of environmental contaminants, the methods used for assessing their toxicity and ecological impacts, and approaches employed to mitigate pollution and ecological health risks globally. Chapters cover the latest advances in research, including genomics, natural toxins, endocrine disruption and the toxicology of radioactive substances. The second half of the book focuses on applications, such as cradle-to-grave effects of selected industries, legal and economic approaches to environmental regulation, ecological risk assessment, and contaminated site remediation. With short capsules written by invited experts, numerous case studies from around the world and further reading lists, this textbook is designed for advanced undergraduate and graduate one-semester courses. It is also a valuable reference for graduate students and professionals. Online resources for instructors and students are also available

A new species in the Rheocricotopus (R.) effusus group from Canada with a review of the Nearctic species of Rheocricotopus and Parametriocnemus (Chironomidae: Orthocladiinae)

Rheocricotopus (Rheocricotopus) reduncusoides sp. n. is described from Bathurst Island, Nunavut, Canada. Its discovery was made while curating and examining specimens deposited by H. V. Danks in 1969 at the Canadian National Collection in Ottawa, Canada. We also report the first Canadian record of Parametriocnemus hamatus (Johannsen, 1934) from Québec, based on previously unsorted material deposited at the Canadian National Collection. In this paper we provide distributional records of the Nearctic species of Rheocricotopus Thienemann and Harnisch and Parametriocnemus Goetghebuer, and present a key to the Nearctic adult males of these genera

Ground Penetrating Radar Use in Three Contrasting Soil Textures in Southern Ontario

Ground penetrating radar (GPR) is a non-invasive, geophysical tool that can be used for the identification of clandestine graves. GPR operates by detecting density differences in soil by the transmission of high frequency electromagnetic waves from an antenna. Domestic pig (Sus scrofa domesticus) carcasses were clothed in 100% cotton t-shirts and 50% cotton/50% polyester briefs, and buried at a consistent depth at three field sites of contrasting soil texture (silty clay loam, fine sand and fine sandy loam) in southern Ontario. GPR was used to detect and monitor the graves for a period of 14 months post-burial. Analysis of collected data revealed that GPR had applicability in the identification of clandestine graves in silty clay loam and fine sandy loam soils, but was not suitable for detection in the fine sandy soil studied. The results of this research have applicability within forensic investigations involving decomposing remains by aiding in the location of clandestine graves in loam soils in southern Ontario through the use of GPR. geoforensics, ground penetrating radar, soil texture, buried remain