616 research outputs found
Heather Waye
No full textClaunch, N., I. Moore, H. Waye, L. Schoenle, S.J. Oakey, R.N. Reed, and C. Romagosa. 2021. Understanding metrics of stress in the context of invasion history: the case of the brown treesnake (Boiga irregularis). Conservation Physiology 9(1):coab008.https://digitalcommons.morris.umn.edu/cosa2021/1043/thumbnail.jp
Heather L. Waye & Peter Dolan
No full textWaye, H.L., P.C. Dolan, and A. Hernandez.* 2019. White blood cell profiles in long-term captive and recently captured Eastern Tiger Salamanders (Ambystoma tigrinum). Copeia 107(1): 138-143.
*University of Minnesota Morris undergraduate co-author.https://digitalcommons.morris.umn.edu/cosa2019/1031/thumbnail.jp
Institutional Racism and the Dynamics of Privilege in Public Health
No full textInstitutional racism, a pattern of differential access to material resources and power determined by race, advantages one sector of the population while disadvantaging another. Such racism is not only about conspicuous acts of violence but can be carried in the hold of mono-cultural perspectives. Overt state violation of principles contributes to the backdrop against which much less overt yet insidious violations occur. New Zealand health policy is one such mono-cultural domain. It is dominated by western bio-medical discourses that preclude and under-value Māori, the indigenous peoples of this land, in the conceptualisation, structure, content, and processes of health policies, despite Te Tiriti o Waitangi guarantees to protect Māori interests.
Since the 1980s, the Department of Health has committed to honouring the Treaty of Waitangi as the founding document of Māori-settler relationships and governance arrangements. Subsequent Waitangi Tribunal reports, produced by an independent Commission of Inquiry have documented the often-illegal actions of successive governments advancing the interests of Pākehā at the expense of Māori. Institutional controls have not prevented inequities between Māori and non-Māori across a plethora of social and economic indicators.
Activist scholars work to expose and transform perceived inequities. My research interest lies in how Crown Ministers and officials within the public health sector practice institutional racism and privilege and how it can be transformed. Through dialogue with Māori working within the health sector, fuelled by critical analysis and strategic advice from a research whānau (family) of Māori health leaders and a Pākehā Tiriti worker, and embracing the traditions of feminist and critical race theory I provide evidence of racism that can invoke strong emotional reactions. More disturbing is its normalisation to nigh imperceptibility within ones personal and professional life. The exposure of racism as a socially created phenomenon is a strength of the research presented here.
My action orientation is my ethical response. Honouring Te Tiriti o Waitangi is a pathway to transforming racism. Such change is likely to be resisted by the Pākehā majority. This anticipated resistance is not a credible reason to weaken responsibility for such necessary change. Transforming institutional racism needs to be driven by senior managers, professional bodies, unions, and by communities. Policies, practices and leadership that enable institutional racism need to be systematically eliminated from the health sector. Crown officials must be supported to strengthen their professional accountabilities and to embrace ethical bicultural practice. Greater transparency could enable more effective monitoring of Crown behaviour and support transformed practice
Using imagery to solve spatial problems
No full textThis report focuses on the use of imagery to solve a range of spatial problems. The research projects reviewed in this report offer some insight into the range of strategies used by solvers of spatial problems and point to relationships between spatial and verbal skills
Dialogue and Collaboration in the Creation of New Works for Clarinet
No full textThis PhD thesis explores dialogue-based, “intimate” collaboration through the creation of new works for clarinet. It borrows from Grounded Theory in order to facilitate an analysis through which emergent themes within a dialogue-based
collaboration are discovered. The aim has not been to insist on one model of collaboration, but to discover methods for improving one’s collaborative skills and to identify ways in which one benefits from a focus on dialogue in
collaboration. Furthermore, it aims to suggest that through collaboration one can make discoveries about the instrument: original contributions to clarinet technique are made within this thesis. The literature from which the research draws inspiration to further collaborative “technique” is cross-disciplinary and wide-ranging: it draws from social theory, collaborative creative writing, dance, the visual arts and of course, music. Added to this is a select discussion of collaboration throughout the repertoire of the clarinet. Finally, this consists of practice-based research. Seven new pieces for clarinet accompany the text
Can a Tiger Change Its Spots? A Test of the Stability of Spot Patterns for Identification of Individual Tiger Salamanders (Ambystoma tigrinum)
No full textThere is increasing interest in the use of unique spot patterns as a way to “mark” individual amphibians as an alternative to invasive techniques for studies of free-ranging populations. however, studies testing the efficacy of the pattern recognition technique have largely drawn their conclusions from the ability to recognize recaptured individuals that were identified solely by spot pattern. individuals whose color pattern changed significantly would therefore not be identified upon recapture. for this study, Tiger salamanders (Ambystoma tigrinum) were captured in west-central Minnesota and maintained in captivity for one year, and their dorsal and ventral surfaces photographed approximately every six weeks. The stability of the spot patterns and their utility as individual identifiers were examined through comparison tests that required the matching of photographs taken 12 months apart. each of the 23 volunteers who took the test was given a sample photograph and asked to choose the corresponding photograph from four others or to choose “no match”. on average, volunteers were able to correctly match the photographs only 67% of the time. four of the salamanders (36%) could be identified by all volunteers, whereas another 36% were matched at a rate that was no better than guessing. Two of these salamanders changed dramatically in appearance, from the spotted A. tigrinum pattern to the blotched A. mavortium melanostictum pattern. The high frequency of misidentifications and the dramatic changes in coloration have implications not only for studies that involve identification of recaptured individuals, but potentially for efforts to classify the different subspecies of Tiger salamanders
Tigers in the Potholes: Habitat Use and Movements of Tiger Salamanders in West Central Minnesota
No full texthttps://digitalcommons.morris.umn.edu/tafs/1061/thumbnail.jp
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Reproductive biology and behavior of the brown tree snake (Boiga irregularis) on Guam.
No full textWhile there are many more species of reptiles in the tropics than in temperate
latitudes, relatively little is known about the natural history of tropical species of
snakes. Even basic information, such as reproductive ecology and behavior, is lacking. Patterns of reproduction in tropical species differ from patterns in temperate species in important ways, such as the duration of gonadal activity and environmental factors that influence the frequency and timing of reproductive bouts. One tropical species, the brown tree snake (Boiga irregularis), was accidentally brought to the island of Guam and quickly became established throughout the island. Although this population has been monitored for over twenty years, many aspects of its basic biology, including its reproductive cycle, have yet to be described. The purpose of this dissertation research was to describe the reproductive biology and behavior of brown tree snakes on Guam. I used aggregation and shelter choice trials to determine whether females show aggregation behavior and to identify the cues that elicit aggregation. Reproductive state of the test snakes did not affect their response to the scent of a single male or female, but did change their response to multiple female scents. Measurements of gonad development and steroid hormones over a four-month period from captive snakes on Guam were compared to those obtained over the same time period from free-living snakes. Reproduction on Guam was found to be extended but seasonal, with females becoming vitellogenic in the latter part of the dry season and into the wet season. I also found that the corticosterone stress response did not vary with sex, size, or body condition, but the response of gonad sex hormones to
acute stress was greater in larger snakes. I measured the body condition index and
corticosterone levels of brown tree snakes on Guam to determine whether that
population still showed the chronic stress and poor condition apparent in an earlier
study. Significantly lower levels of corticosterone in all snakes in 2003 suggests that although juveniles did not have significantly improved energy stores they, along with mature males and females, were no longer under chronic levels of stress
D-Spaces and L-Special Trees
No full textThis dissertation concerns D-spaces and set-theoretic trees. A topological space, X, is a D-space if for every neighbornet of the space there is a closed, discrete set from X whose images in the neighbornet are a cover for X. A set-theoretic tree is a poset where for any element the set of its predecessors is well-ordered.
In this dissertation it is shown that certain L-special trees are D-spaces and some of them are hereditarily so.In particular, let L=[0,1]α with α a countable ordinal be given the lexicographic order. For α \u3c ω+1, the author shows that any L-special tree is hereditarily a D-space. For certain α with ω \u3c α \u3c ω1 the author shows that any L-special tree is a D-space. For the remaining countable ordinals α, the current progress is shown
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