AuthorHardesty, L. H.
MetadataShow full item record
CitationHardesty, L. H. (1991). Research note: A survey of current range research activity. Journal of Range Management, 44(3), 289-294.
PublisherSociety for Range Management
JournalJournal of Range Management
AbstractRange scientist members of the Society for Range Management were surveyed to evaluate where research efforts have been concentrated in the recent past relative to current and future allocation of efforts, how research is funded, where it is published, how well the scientists perceive that clientele needs are met, and what obstacles scientists face. Range ecology and range improvements are the topics that were, and continue to be seen as the most important for investigation. Plant improvement, range watershed, range wildlife, and ecophysiology are important future research topics. In-house funding was the most frequent source of funds for all groups of range researchers. University scientists were the most likely to have other sources of funds. There are funding sources that may be underutilized. The 4 most frequently listed clients are livestock producers (73 listings), state and federal agencies (71), other scientists (46), and the private sector (27). Forest Service scientists appear to have the least restricted view of their clientele. Over 25% of the respondents felt that there were no client groups not being adequately served by range research. Others felt that livestock producers and the public were not being adequately served. The Journal of Range Management was the most frequently listed publication outlet followed by conference papers and symposium proceedings. Limited funding was the most frequently listed obstacle to doing research, followed by poor communication between researchers and clients, and the need for more interdisciplinary interaction.
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CREATING HIGH-VALUE REAL-WORLD IMPACT THROUGH SYSTEMATIC PROGRAMS OF RESEARCHNunamaker, Jay F.; Twyman, Nathan W.; Giboney, Justin Scott; Briggs, Robert O.; Univ Arizona, Eller Coll Management (SOC INFORM MANAGE-MIS RES CENT, 2017-06)An ongoing conversation in the Information Systems literature addresses the concern, "How can we conduct research that makes a difference?" A shortage of high-impact research will, over time, challenge the identity and weaken the viability of IS as an academic discipline. This paper presents the systematic high-impact research model (SHIR), an approach to conducting high-impact research. SHIR embodies the insight gained from three streams of high-impact research programs spanning more than 50 years. The SHIR framework rests on the proposition that IS researchers can produce higher-impact contributions by developing long-term research programs around major real-world issues, as opposed to ad hoc projects addressing a small piece of a large problem. These persistent research programs focus on addressing the entirety of an issue, by leveraging multidisciplinary, multiuniversity research centers that employ a breadth of research methods and large-scale projects. To function effectively, SHIR programs must be sustained by academic and practitioner partnerships, research centers, and outreach activities. We argue that SHIR research programs increase the likelihood of high impact research.
Pineal-mediated inhibition of prolactin cell activity: Investigation of dopaminergic involvement.Burns, Danny Michael. (The University of Arizona., 1989)The purpose of these studies was to determine whether the inhibitory effects of short photoperiod exposure on prolactin cell activity in male Syrian hamsters and/or the inhibitory effects of melatonin treatment on the growth and activity of diethylstilbestrol- (DES) induced prolactinomas in Fisher 344 (F344) rats were possibly mediated through alterations in dopaminergic regulatory mechanisms. In both the hamster and the rat, changes in hypothalamic dopamine neuronal activity and changes in pituitary responsiveness to dopamine have been suggested as possible mechanisms in the prolactin-inhibitory effects of light deprivation or melatonin administration. The present studies in the male Syrian hamster addressed two issues. First, it was of interest to determine if anterior pituitaries of long photoperiod-exposed male hamsters possess dopamine receptors, which are presumably necessary for responsiveness to dopamine. This was accomplished by analysis of ³H-spiperone binding to anterior pituitary membranes. Second, possible changes in pituitary sensitivity to dopamine were assessed by comparison of dose response curves for the inhibition by dopamine of prolactin release from hemipituitaries incubated in vitro from both long and short photoperiod-exposed animals over a series of time points from three to fifteen weeks. In the second series of experiments, adult female F344 rats received daily injection of melatonin or saline vehicle. After two weeks, half of the animals were sacrificed for analysis of ³H-spiperone binding to anterior pituitary membranes, measurement of hypothalamic dopamine turnover and analysis of in vitro pituitary sensitivity to dopamine. The remaining animals received subcutaneous implants containing DES and injections were continued on the same schedule until sacrifice four weeks later for measurement of the same parameters. In both the hamster and rat models, treatments exerted profound inhibitory effects on indices of prolactin cell activity. However, these studies provide no evidence for the involvement of altered dopaminergic regulation in the production of such effects. Neither pituitary sensitivity to dopamine in vitro nor hypothalamic dopamine neuronal activity was enhanced by short photoperiod exposure or melatonin treatment. Prolactin-inhibitory effects of these treatments appear to be mediated through as yet unidentified dopamine-independent mechanisms.
The play patterns of young hearing-impaired children with their hearing and hearing-impaired peers.Levine, Linda Mae; Antia, Shirin D.; Bos, Candace; Kreimeyer, Kathryn; French, Edward (The University of Arizona., 1993)An observational study was conducted examining the social and cognitive play of young children with hearing-impairment playing in small groups composed of both hearing and hearing-impaired peers. The questions addressed the effects of the hearing status of the play partner upon the social/cognitive play patterns of children with hearing-impairment, and the relationship between their play patterns and their communicative competence, social competence and speech intelligibility. Forty-eight hearing-impaired subjects ranging in age from 3-6 to 6-1 were observed playing with partners of same and different hearing status during integrated play sessions at 13 school sites. The social play categories included solitary, parallel and group play, while the cognitive play categories included functional, constructive and dramatic play. Results of the study showed that the play patterns of the hearing-impaired children differed significantly for each group of partners. When playing with hearing-impaired partners, subjects engaged in group functional and constructive play more frequently than parallel functional and constructive play, and with equal frequency in parallel dramatic and group dramatic play. When playing with hearing partners, subjects engaged with equal frequency in group and parallel play. When playing with mixed groups of hearing and hearing-impaired partners, subjects engaged in group dramatic play more frequently than parallel dramatic play, and with equal frequency in group functional and constructive play, and parallel functional and constructive play. Communicative competence was negatively correlated to functional play. A positive correlation was found between social competence and constructive play, and between speech intelligibility and dramatic play. These correlations remained significant when age was partialed out. The hearing-impaired subjects spent similar percentages of time in social/cognitive play as those reported for hearing children. The study supports the premise that the play of young hearing-impaired children varies according to the hearing status of the play partner and is neither delayed nor deficient.