33 research outputs found
The Strategic Management of Infrastructure Assets in Queensland Local Government Authorities: Perceptions of Seminal Management in a Local Council on Alternate Depreciation Methodologies
Mercury effects on axeniclly grown fungal isolates and on pinus rigida and its ectomycorrhizal community
Mercury (Hg) is a toxic global pollutant that can be highly bioavailable in terrestrial ecosystems. Although fungi are important contributors to a number of soil processes including plant nutrient uptake and decomposition, little is known about the effect of Hg on fungi. This dissertation describes efforts to investigate the effects of Hg on ectomycorrhizal and saprotrophic fungi and on Pinus rigida seedlings and their rhizosphere fungal communities. First (Chapter 1) I evaluated the effects of Hg on ectomycorrhizal fungi (ECMF) in axenic culture. Natural growth trajectories differed among fungal species, and micromolar concentrations of Hg both increased the lag phase and decreased the growth rate of ECMF. Growth rate inhibition was reduced by 20-90% when well-established ECMF colonies were exposed to 10 and 25 μM Hg, and Hg accumulation by fungal biomass was several times the concentration added to the growth media. Next (Chapter 2) I investigated the effects of soil Hg addition on the development of ectomycorrhizal communities of P. rigida seedlings using morphotype analysis. At soil additions of 88 ppm Hg and higher, seedling survivorship was less than 50%. Furthermore, addition of 88 ppm Hg to soil significantly reduced mycorrhizal colonization and altered community composition of ECMF. Last (Chapter 3), I investigated the Hg-tolerance of saprotrophic fungi from pristine soil samples. Although 67% of the culturable fungal community was culturable on media containing 50 μM Hg, the diversity of Hg-tolerant soil fungi was lower than that of the total soil fungal community. Four fungi isolated in this study were evaluated for their ability to grow in the presence of Hg. Three Umbelopsis spp. tolerated up to 20 μM, and a fourth isolate, possibly Aspergillus cervinus, was inhibited by 10-35 μM Hg. This dissertation demonstrates that Hg is toxic to P. rigida and inhibits the growth of fungi from two important functional groups (ECMF and saprotrophs). Furthermore, it provides evidence that Hg alters ECMF and saprotrophic fungal communities. Finally, it emphasizes a need for further research into the effects of Hg on fungi and their ecosystem services.Ph.D.Includes bibliographical referencesIncludes vitaby Sharron L. Cran
Author response
Available in the Library: https://nottshc.koha-ptfs.co.uk/cgi-bin/koha/opac-detail.pl?biblionumber=10358
Fables
This large-format pamphlet includes nine fables from Aesop, two from La Fontaine, one from Lobel, and four from Ginsburg. All but the last four have full-page color illustrations. Ginsburg's four stories are apparently four traditional Russian tales; three are familiar to me. Two of the book's morals are particularly apt: You only trick yourself by pretending to be greater or more clever than you really are for DLS (15) and Common sense is often worth more than a whole bunch of tricks for The Cat and the Fox (19). There is a mistake on 41, which claims that Lobel began his career by illustrating other author's books.Aesop, La Fontaine, Arnold Lobel, and Mirra Ginsbur
My Student Teaching Experience
14 p.The author describes her experience as a high school social studies student teacher.Sturgis High School. Sturgis, Michigan
A systematic review of interventions to mitigate radiotherapy-induced oral mucositis in head and neck cancer patients
Background
Oral mucositis is a debilitating consequence of radiotherapy in patients with head and neck cancers. Radiation-induced oral mucositis (RIOM) can cause pain and weight loss, reduce quality of life and affect treatment outcomes.
Methods
A systematic review was undertaken to identify and examine the efficacy of low-cost interventions to mitigate RIOM and to develop clinical guidelines based on the evidence.
Results
The author identified three interventions: benzydamine hydrochloride mouth rinse (BHM), honey and oral glutamine (OG). The search identified twenty-four studies in total. Four studies examined BHM; all findings were favourable, although only one had moderate methodological quality, and the rest were low. The product was poorly tolerated by some participants in one study. Twelve studies examined honey. Eleven of these had favourable results; two studies had moderate methodological quality, and the rest were low. Eight studies examined OG. Six of these had favourable results; two studies had moderate methodological quality, and the rest were low.
Conclusion
The author cannot recommend BHM to mitigate RIOM due to the overall low quality of the studies and poor tolerance to the product. The author cannot recommend honey to mitigate RIOM due to weak evidence supporting the intervention. The author can recommend OG to mitigate RIOM. There is a need for high-quality studies with a consensus of the methodology to reduce heterogeneity and examination of the cost-effectiveness of the interventions
The Sun knows what it does
In Double Lives, the first Canadian literary anthology focusing on mothering and writing, twenty-two writers, who range in reputation from seasoned professionals to noteworthy new talents, reveal the intimate challenges and private rewards of nurturing children while pursuing the passion to write. Varying widely in age, marital status, sexual orientation, culture/ethnicity, and philosophical stance, authors such as Di Brandt, Stephanie Bolster, Linda Spalding, Janice Kulyk Keefer, Sharron Proulx-Turner, Sally Ito Rachel Rose and Susan Olding, make significant and illuminating contributions to our understanding of how writer and mother co-exist
Dos and Don'ts of Academic–Industrial Collaboration
This article is written from personal experience of four collaboration projects. The author is with a software company and her article contains a list of suggestions for industrialists and academics about to embark on a collaboration. </jats:p
An exploration of deliberate self-harming behaviours in adolescents and a discussion of three Behavioural Therapies that may be effective as a therapeutic intervention
This paper will explore what self-harm is, the possible underlying reasons behind it and, in light of this information, there will be a review of two behavioural approaches that have shown efficacy in working with young people who engage in self-harm. ‘Sometimes called ‘deliberate self-harm,’ ‘self-injury,’ ‘self-mutilation,’ ‘cutting,’ or ‘non-suicidal self-injury’, self-injury typically refers to a variety of behaviours in which an individual intentionally inflicts harm to his or her body for purposes not socially recognized or sanctioned and without suicidal intent’ (Favazza, 1996). For the purpose of this paper self-harm will be defined as ‘the commission of deliberate harm to one's own body. The injury is done to oneself, without the aid of another person, and the injury is severe enough for tissue damage (such as scarring) to result. Acts that are committed with conscious suicidal intent or are associated with sexual arousal are excluded’ (Winchel & Stanley, 1991) The purpose of this research is to collate the information available which could be used by educators, social workers and other youth service providers when working with self-harming issues. As well as reviewing the efficacy of Cognitive Behaviour Therapy (CBT) and Dialectic Behaviour Therapy (DBT) in managing and reducing incidents of self-harm in adolescence, the author will also give an explanation of how these approaches work. The author will add to this the exploration of Rational Emotive Behaviour Therapy (REBT), although there is little research available in relation to this approach and self-harming behaviours, REBT has been noted to take into consideration developmental stages, which are an important factor in working with adolescents. This will be library based research with the material being gathered from a body of literature which already exists on the subject. The intention is that this research will add to that already existing on the subject of self-harm and behavioural therapeutic interventions
Polynesian tribal tattooing: its history, methods, and designs
This thesis examines Polynesian tribal tattooing, focusing on the Maori of New Zealand and the Samoans. By studying Polynesian tribal tattooing through literature, photographs, observations, content experts, and publicly available data the author has discovered that body ornamentation has much to reveal about the values of the cultures that practice it
