389 research outputs found
Editor Preferences for the Use of Scientific Information in Livestock Publications
Editors of monthly livestock publications were surveyed to determine their perceptions of the amount, type, and sources of scientific information used in their respective publications. The most important scientific topics to editors were animal health, management, and breeding and genetics. Editors’ identification of the most important topics agreed with previously reported audience perceptions of information needs and previous studies of information provided by agricultural journals, although lower rankings of policy and worker/employee safety information contradicted the importance of magazines identified by audiences in previous studies. The importance of certain gatekeeping criteria to editors reflected the general standards of accuracy and newsworthiness found in journalism, as well as editors’ perceptions of their livestock audiences’ information needs. A majority of editors recommended two to four sources be used in a scientific story, with university faculty or staff, Cooperative Extension, veterinarians and the USDA identified as the top sources. The number and sources of information preferred coincided with source characteristics as criteria for using scientific information. The specific sources most preferred by editors also demonstrated the orientation of editors with other gatekeepers and the audience in selecting appropriate information for publication. Scientific information published was similar to editors’ rankings of topic importance and source preferences. Scientific information was written for the average producer, and a majority of editors reported publishing scientific stories in at least one-half of issues. The depths and overall use of scientific information also supported the importance of delivering understandable scientific information to their agricultural audiences
JAC Transitions
A 2009 issue of BOOKFORUM published a cartoon titled “The Lost Library — where all of the unwritten books go” (Shaw, 2009). As depicted in the cartoon, the Lost Library is a lonely place. Dusty shelves overflow with books and publications of untold value - novel and creative ideas that never see the light of day
Diagnosis of an anaerobic pond treating temperate domestic wastewater: An alternative sludge strategy for small works
An anaerobic pond (AP) for treatment of temperate domestic wastewater has been studied as a small works sludge management strategy to challenge existing practice which comprises solids separation followed by open sludge storage, for up to 90 days. During the study, effluent temperature ranged between 0.1 °C and 21.1 °C. Soluble COD production was noted in the AP at effluent temperatures typically greater than 10 °C and was coincident with an increase in effluent volatile fatty acids (VFA) concentration, which is indicative of anaerobic degradation. Analysis from ports sited along the AP's length, demonstrated VFA to be primarily formed nearest the inlet where most solids deposition initially incurred, and confirmed the anaerobic reduction of sludge within this chamber. Importantly, the sludge accumulation rate was 0.06 m3 capita−1 y−1 which is in the range of APs operated at higher temperatures and suggests a de-sludge interval of 2.3–3.8 years, up to 10 times longer than current practice for small works. Coincident with the solids deposition profile, biogas production was predominantly noted in the initial AP section, though biogas production increased further along the AP's length following start-up. A statistically significant increase in mean biogas production of greater than an order of magnitude was measured between winters (t(n=19) = 5.52, P < 0.001) demonstrating continued acclimation. The maximum methane yield recorded was 2630 mgCH4 PE−1 d−1, approximately fifty times greater than estimated from sludge storage (57 mgCH4 PE−1 d−1). Anaerobic ponds at small works can therefore enable sludge reduction and longer sludge holding times than present thus offsetting tanker demand whilst reducing fugitive methane emissions currently associated with sludge storage, and based on the enhanced yield noted, could provide a viable opportunity for local energy generation
Moon-tracking orbits using motorized tethers for continuous earth–moon payload exchanges
For human colonization of the moon to become reality, an efficient and regular means of exchanging resources between the Earth and the moon must be established. One possibility is to pass and receive payloads at regular intervals between a symmetrically laden motorized momentum-exchange tether orbiting about Earth and a second orbiting about the moon. There are significant challenges associated with this method, among the greatest of which is the development of a system that incorporates the complex motion of the moon into its operational architecture in addition to conducting these exchanges on a per-lunar-orbit basis. One way of achieving this is to use a motorized tether orbiting Earth and tracking the nodes of the moon’s orbit to allow payload exchanges to be undertaken periodically with the arrival of the moon at either of these nodes. Tracking these nodes is achieved by arranging the tether to orbit Earth with a critical inclination, thus rendering its argument of perigee stationary in addition to using the precession effects resulting from an oblate Earth. Using this in conjunction with pre-emptive adjustments to its angle of right ascension, the tether will periodically realign itself with these nodes simultaneously with the arrival of the moon
Developing Public Relations Curricula in Agricultural Communications
Agricultural public relations professionals were surveyed to determine the proficiencies in public relations that they perceive to be most important in an agricultural communications curriculum. They also were asked how frequently they used those proficiencies and how best to integrate the proficiencies in the agricultural communications curriculum. The population for the study consisted of public relations professionals who were members of the Agricultural Relations Council and the Cooperative Communicators Association. Most respondents perceived agricultural proficiencies to be less important than general communications or public relations proficiencies. Proficiencies related to use of the computer skills, human relations skills, time management, writing, and editing were among the most frequently used proficiencies by public relations professionals. Based on these results, it is recommended that university faculty consider focusing public relations curriculum toward writing, editing, presentations, time management, conflict resolution, and teamwork. It also is recommended that students take coursework in agricultural policy and government programs and finance/business principles. Finally, it is recommended that faculty stress the importance of meeting deadlines to prepare students for the public relations profession
Understanding Whence We Came: Role of the Association for Communication Excellence in the Development of Agricultural Communications during the Past Century - and Future Implications
Role of the Association for Communication Excellence in the Development of Agricultural Communications during the Past Century - and Future Implications
Performance of UK wastewater treatment works with respect to trace contaminants
This is the post-print version of the final paper published in Science of Total Environment. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. Copyright @ 2013 Elsevier B.V.This study examined the performance of 16 wastewater treatment works to provide an overview of trace substance removal in relation to meeting the objectives of the Water Framework Directive (WFD). Collection and analysis of over 2400 samples including sewage influent, process samples at different stages in the treatment process and final effluent has provided data on the performance of current wastewater treatment processes and made it possible to evaluate the need for improved effluent quality. Results for 55 substances, including metals, industrial chemicals and pharmaceuticals are reported. Data for sanitary parameters are also provided. A wide range of removal efficiencies was observed. Removal was not clearly related to the generic process type, indicating that other operational factors tend to be important. Nonetheless, removals for many substances of current concern were high. Despite this, current proposals for stringent water quality standards mean that further improvements in effluent quality are likely to be required
Newspaper Coverage of the Bovine Spongiform Encephalopathy Outbreak in the United States: A Content Analysis
Objectivity is a hallmark of good journalism. Objective news writing is particularly important when covering agricultural issues. In this study, researchers used the Hayakawa-Lowry news bias categories to examine the objectivity of news coverage of the bovine spongiform encephalopathy (BSE) outbreak that occurred December 23, 2003, in the United States. The study looked at 149 articles published in USA Today, The Washington Post, and The Seattle Times, dating from the day of the outbreak to February 10, 2004, when the USDA concluded its investigation of the outbreak. Based on the findings, the three newspapers studied were more objective than judgmental in their coverage of the outbreak. Although judgment statements were relatively uncommon, the majority of the judgment statements found were negative toward agriculture. Analysis of the level of objectivity for each newspaper revealed that USA Today was the least objective in its coverage; The Seattle Times was the most objective. This study recommends that reporters be encouraged to include more objective sentences in their writing, that journalism and agricultural communications students be educated about the Hayakawa-Lowry news bias categories, that additional research be conducted on media coverage of other agricultural issues, and that the agricultural literacy level of journalists be examined
The Cow That Stole Christmas: Framing the First U.S. Mad Cow Crisis
The discovery of bovine spongiform encephalopathy (BSE) in the United States made an impact on the beef industry. Determining how the BSE outbreak was framed by the news media is significant because research indicates that media shape public perceptions. This study examined how several key newspapers framed the 2003 outbreak of BSE in the United States. Determining how the media framed this issue can help communicators ensure bias-free media coverage of similar issues in the future. The study followed established framing analysis categories identified from the literature. There were 149 articles identified in The Washington Post, The Seattle Times, and USA Today for investigation in this study. Findings showed that the BSE issue was framed as an industry crisis and that the tone of the articles and headlines portrayed the beef industry negatively. When compared to the other two newspapers, USA Today framed the issue differently, with economic calamity being the dominant frame. The most heavily cited sources in the articles were government officials. This study recommends that media professionals avoid framing an issue for the public, focusing instead on reporting news in an objective and unbiased manner. Further research is recommended to examine the impact of tone and frame on specific audiences
Beef Producers\u27 Risk Perceptions of an Agroterrorism Event Occurring in Oklahoma
The purpose of this statewide study was to determine Oklahoma beef producers’ perceptions of the susceptibility of the state’s beef industry to a terrorist attack. Participants in this study were randomly selected from a population of 48,000 beef producers in this Oklahoma. All 470 respondents completed a telephone survey conducted by the Oklahoma Agricultural Statistics Service. Descriptive statistics, t-tests, and cross tabulations were used to analyze the data. Oklahoma beef producers perceived the beef industry was susceptible to an agroterrorism event, believed the feedlots to be at an elevated level of threat, were confident in their own operation’s biosecurity measures, believed their own operation was not susceptible to an agroterrorism event, and did not believe they had enough information about protection from terrorism to the beef industry
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