Viewing youth and mobile privacy through a digital policy literacy framework

Digital policy literacy is a critical element of digital literacy that emphasizes an understanding of communication policy processes, the political economy of media, and technological infrastructures. This paper introduces an analytical framework of digital policy literacy and illustrates it with examples of young people’s everyday negotiations of mobile privacy, in order to argue for increased policy literacy around privacy and mobile phone communication. The framework is applied to the Canadian context, where a small pilot study engaged 14 undergraduate university students in focus groups about their uses of mobiles and knowledge of mobile privacy issues. Preliminary findings show that while our participants were aware of a variety of privacy threats in mobile communication, they were not likely to participate in policy processes that might protect their privacy rights. The paper concludes with a discussion of why young people may not be motivated to intervene in policy processes and how their digital policy literacy around mobile privacy is mitigated by the construction of youth as a lucrative target consumer market for mobile devices and services

Introduction to the Special Issue: Gendering Global Media Policy: Critical Perspectives on "Digital Agendas"

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Introduction: What Would Ursula Franklin Say?

Introduction for "What Would Ursula Franklin Say?" Series: https://reprisingtherealworld.hcommons.org/wwufs-series

Effects of Irrigation Frequency and Nitrogen Fertilizer Rate on Water Stress, Nitrogen Uptake, and Plant Growth of Container-grown Rhododendron

The influence of irrigation frequency (same amount of water per day given at different times) and nitrogen (N) fertilizer rate on water stress [stomatal conductance (gs)], N uptake, and growth (biomass) of container-grown evergreen Rhododendron 'P.J.M. Compact' and 'English Roseum' and deciduous Rhododendron 'Gibraltar' was evaluated. Both N deficiency and high N rate increased water stress. Water stress was greatest in plants fertilized with the highest N rate and gs of plants grown with the higher N rates changed more in response to water deficits resulting from irrigation treatments and seasonal climatic changes. Watering plants more frequently decreased water stress of plants fertilized with higher N rates and altering irrigation frequency had little impact on alleviating water stress of N-deficient plants. Increasing irrigation frequency decreased N uptake efficiency (N uptake per gram N applied), increased N use efficiency (growth per gram N uptake) and altered biomass allocation with little influence on total plant biomass. Response of biomass allocation to N rates was similar among cultivars and response of biomass allocation to irrigation frequency varied among cultivars. Altering irrigation frequency changed either the availability of N in the growing substrate or the ability of roots to absorb N. Our results indicate that transitory increases in plant water stress can alter N uptake, N use, and plant form without detectable changes in total plant biomass.Keywords: P.J.M. compact, Rhododendron 'Gibralter', Rhododendron, Nursery production, Rhododendroon 'English Roseum', Water use, Nitrogen uptak

Irrigation Frequency Alters Nutrient Uptake in Container-grown Rhododendron Plants Grown with Different Rates of Nitrogen

The influence of irrigation frequency (same amount of water per day given at different times) on nutrient uptake of container-grown evergreen Rhododendron ‘P.J.M. Compact’ (PJM) and ‘English Roseum’ (ER) and deciduous Rhododendron ‘Gibraltar’ (AZ) grown with different rates of nitrogen (N) fertilizer was evaluated. Increased N application rate increased nutrient uptake and plant dry biomass. Irrigation frequency did not significantly influence total plant dry biomass; however, more frequent irrigation decreased net uptake of several nutrients including phosphorus (P), boron (B), and manganese (Mn) uptake in all cultivars; potassium (K), copper (Cu), and zinc (Zn) uptake in AZ and ER; sulfur (S) uptake in ER and PJM; and iron (Fe) uptake in AZ. Additionally, more frequent irrigation of evergreen cultivars increased calcium (Ca) uptake. Covariate analyses were used to compare nutrient uptake among cultivars and irrigation treatments after accounting for the variability in nutrient uptake attributable to differences in biomass and N uptake. For most nutrients, the influence of irrigation frequency on uptake was partially attributable to differences in biomass and N uptake. After accounting for the variability in nutrient uptake associated with biomass or N uptake, increased irrigation frequency decreased P, S, B, Cu, and Mn uptake only in ER and increased Ca uptake in the two evergreen cultivars. Differences in nutrient uptake among cultivars in response to irrigation treatments were related to water and N availability during production and their combined influence on water stress, nutrient uptake, and biomass partitioning. Estimates of nutrient demand and uptake efficiency using nutrient concentrations and ratios are discussed in relation to nutrient management differences for different cultivars and irrigation treatments.Keywords: Rhododendron 'English Roseum', Rhododendron 'P.J.M.', nutrient uptake, Rhododendron 'Gibraltar', nursery production, water useKeywords: Rhododendron 'English Roseum', Rhododendron 'P.J.M.', nutrient uptake, Rhododendron 'Gibraltar', nursery production, water us

Irrigation Frequency during Container Production Alters Rhododendron Growth, Nutrient Uptake, and Flowering after Transplanting into a Landscape

One deciduous cultivar of Rhododendron L., Gibraltar (AZ), and two evergreen cultivars, P.J.M. Compact (PJM) and English Roseum (ER), were grown in containers for 1 year to determine the effects of irrigation frequency during container production on plant performance the next spring when the plants were transplanted into the landscape. While in the containers, each cultivar was irrigated once or twice daily, using the same amount of water per day, and fertilized with complete nutrient solutions containing 0, 35, 70, or 140 mg·L⁻¹ nitrogen (N). Three months after transplanting into the landscape, nutrient uptake, growth, and flowering were evaluated. In general, the effects of irrigation frequency in containers on performance in the landscape differed between the deciduous cultivar and the evergreen cultivars. In AZ, less frequent irrigation in containers had a pre-conditioning effect that resulted in greater vegetative growth in the landscape but less reproductive growth. In contrast, less frequent irrigation reduced vegetative growth of evergreen cultivars in the landscape and improved flowering. Different growth responses to irrigation frequency between deciduous and evergreen cultivars appeared to be related to differences in timing of nutrient uptake and mobilization. In the deciduous cultivar, less frequent irrigation increased nutrient reserves and improved the ability of the plants to absorb and use nutrients after transplanting, but in the evergreen cultivars, it generally decreased nutrient uptake after transplanting. Less frequent irrigation also altered plant attributes that are important to consumers, including developing a sparser canopy in ER and a fuller canopy in PJM, and producing more but smaller inflorescences in both cultivars. Landscape performance was related to plant nutrition in containers; however, irrigation frequency in containers disrupted relationships between nutrition and performance in all three cultivars. Our results indicate that irrigation frequency during container production of Rhododendron results in a tradeoff between vegetative and reproductive growth the next spring when the plants are in the landscape.This is the publisher’s final pdf. The published article is copyrighted by the American Society for Horticultural Science and can be found at: http://hortsci.ashspublications.org/.Keywords: landscape performance, nursery production, nutrient uptake, water us

Induction of vascular endothelial growth factor expression in synovial fibroblasts by prostaglandin E and interleukin‐1: a potential mechanism for inflammatory angiogenesis

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/117173/1/feb2001457939500956a.pd

Research Priorities for Children's Nursing in Ireland: A Delphi Study

This paper is a report of a study which identified research priorities for children's nursing in an acute care setting in Ireland. A limited number of studies have examined research priorities for children's nursing. This study was undertaken against the backdrop of significant proposed changes to the delivery of of children's healthcare. A three round Delphi survey design was used to identify and rate the importance of research priorities for children's nursing. In round 1 participants were asked to identify five of the most important research priorities for children's nursing. Participants in round 2 were asked to rate the importance of each of each research priority on a seven point Likert scale. In round 3 participants were presented with the mean scoreof each research priority from the second questionaire, and again asked to consider the importance of each topic on a 7 point Likert scale. The aim was to reach a consensus on the priorities. The top three priorities identified were recognition and care of the deteriorating child, safe transfer of the critically ill child between acute health care facilities, and the child and families perceptions of care at end-of life. The wide variation of priorities reflects the scope of care delivery of children's nurses and mirrors many global care concerns in caring for children