Restoration of eucalypt grassy woodland: effects of experimental interventions on ground-layer vegetation

We report on the effects of broad-scale restoration treatments on the ground layer of eucalypt grassy woodland in south-eastern Australia. The experiment was conducted in two conservation reserves from which livestock grazing had previously been removed. Changes in biomass, species diversity, ground-cover attributes and life-form were analysed over a 4-year period in relation to the following experimental interventions: (1) reduced kangaroo density, (2) addition of coarse woody debris and (3) fire (a single burn). Reducing kangaroo density doubled total biomass in one reserve, but no effects on exotic biomass, species counts or ground cover attributes were observed. Coarse woody debris also promoted biomass, particularly exotic annual forbs, as well as plant diversity in one of the reserves. The single burn reduced biomass, but changed little else. Overall, we found the main driver of change to be the favourable growth seasons that had followed a period of drought. This resulted in biomass increasing by 67%, (mostly owing to the growth of perennial native grasses), whereas overall native species counts increased by 18%, and exotic species declined by 20% over the 4-year observation period. Strategic management of grazing pressure, use of fire where biomass has accumulated and placement of coarse woody debris in areas of persistent erosion will contribute to improvements in soil and vegetation condition, and gains in biodiversity, in the future.Funding and in-kind logistic support for this project was provided by the ACT Government as part of an Australian Research Council Linkage Grant (LP0561817; LP110100126). Drafts of the manuscript were read by Saul Cunningham and Ben Macdonald

In-Game Intoxication: Demonstrating the Evaluation of the Audio Experience of Games with a Focus on Altered States of Consciousness

In this chapter, we consider a particular method of specifically evaluating the user experience of game audio. To provide a domain of game audio to evaluate, we focus on an increasingly occuring phenomenon in game; that of the altered state of consciousness. Our approach seeks to evaluate user experience of game audio from normal gameplay and gameplay that features altered states. As such, a brief background to person-centered approaches to use experience evaluation is presented and then we provide a detailed description of the method that has been adopted in this chapter: the use of personal construct theory via repertory grid interviews

Health Research Participants' Preferences for Receiving Research Results

BACKGROUND: Participants in health research studies typically express interest in receiving results from the studies in which they participate. However, participants’ preferences and experiences related to receiving results are not well understood. In general, existing studies have had relatively small sample sizes and typically address specific and often sensitive issues within targeted populations. METHODS: The present study used an online survey to explore attitudes and experiences of registrants in ResearchMatch, a large database of past, present, and potential health research participants. Survey respondents provided information related to whether or not they received research results from studies in which they participated, the methods used to communicate results, their satisfaction with results, and when and how they would like to receive research results from future studies. 70,699 ResearchMatch registrants were notified of the study’s topic. Of the 5,207 registrants who requested full information about the study, 3,381 respondents completed the survey. RESULTS: Approximately 33% of respondents with previous health research participation reported receiving results. Approximately half of respondents with previous research participation reported no opportunity to request results. However, almost all respondents said researchers should always or sometimes offer results to participants. Respondents expressed particular interest in results related to their (or a loved one's) health, as well as information about studies’ purposes and any medical advances based on the results. In general, respondents’ most preferred dissemination methods for results were email and website postings. The least desirable dissemination methods for results included Twitter, conference calls, and text messages. Across all results, we compare the responses of respondents with and without previous research participation experience, and those who have worked in research organizations vs. those who have not. Compared to respondents who have previous participation experience, a greater proportion of respondents with no participation experience indicated that results should always be shared with participants. Likewise, respondents with no participation experience placed higher importance on the receipt of each type of results information included in the survey. CONCLUSIONS: We present findings from a survey assessing attitudes and experiences of a broad sample of respondents that addresses gaps in knowledge related to participants’ preferences for receiving results. The study’s findings highlight the potential for inconsistency between respondents’ expressed preferences to receive specific types of results via specific methods and researchers’ unwillingness or inability to provide them. We present specific recommendations to shift the approach of new studies to investigate participants’ preferences for receiving research results

Supermarket guidelines -- for store design and layout

"June, 1973""This study was conducted under a cooperative agreement between the U. S. Department of Agriculture and the University of Missouri--Columbia. The data used in this study were provided by firms representing the corporate chains, independent chains, cooperatives, and voluntary independents. The basic information used was from a copy of the best plan and the corresponding operating statement for each store used in this study."--First paragraphClyde R. Cunningham (Economist, Food Distribution, University Extension Division, Department of Agricultural Economics ; University of Missouri--Columbia), Harold S. Ricker (Food Distribution Research Lab, Agricultural Marketing Research Institute, Agricultural Research Service ; Beltsville, Maryland)Includes bibliographical references

Kalman Filter Equalization For QPSK Communications

The discrete complex Kalman filter is considered as an equalizer for quadrature phase-shift keyed (QPSK) systems in the presence of additive noise and InterSymbol interference (ISI). When the channel is unknown, an adaptive Kalman equalizer is used in which the channel complex tap gains are estimated by decision feedback. Copyright © 1976 by The Institute of Electrical and Electronics Engineers, Inc

Understanding key elements in establishing a social license for CCS: An empirical approach

© 2017 This paper presents results of empirical research with the broad aim of exploring societal responses to CO2 storage, framed around the concept of social license to operate (SLO). We describe a mixed method approach incorporating stakeholder interviews and focus groups deployed in two case study locations in the UK. The approach helps us to build up an understanding of the social context in which Carbon Capture and Storage (CCS) will be introduced, in terms of the specific local conditions and with reference to the influence of local experiences of other technologies (such as hydraulic fracturing (fracking), for example). This understanding is then used to guide further empirical research, from which we assess the extent to which an SLO for CCS is emerging. Results show that perceptions of trust and confidence in key institutions to safely manage projects are highly dependent not just on the track record of the organisations but are strongly influenced by past experiences with different technologies. While the indications for achieving an SLO for CCS are currently positive, consolidating and maintaining that support depends on the evolving social, industrial and political landscape

Industrial Transformation in response to climate change: NSW Alpine Tourism Sector

The purpose of this case study is to investigate business innovation activity in response to impacts associated with a changing climate in the Alpine and Highland regions of New South Wales. Climate change includes temperature changes, changes in the frequency and intensity of weather events such as heat waves, severe storms and rain events and bushfires

A Coordinated Radio Afterglow Program

We describe a ground-based effort to find and study afterglows at centimeter and millimeter wavelengths. We have observed all well-localized gamma-ray bursts in the Northern and Southern sky since BeppoSAX first started providing rapid positions in early 1997. Of the 23 GRBs for which X-ray afterglows have been detected, 10 have optical afterglows and 9 have radio afterglows. A growing number of GRBs have both X-ray and radio afterglows but lack a corresponding optical afterglow.Comment: To appear in Proc. of the 5th Huntsville Gamma-Ray Burst Symposium, 5 pages, LaTe