Linear-log counting-rate meter uses transconductance characteristics of a silicon planar transistor

Counting rate meter compresses a wide range of data values, or decades of current. Silicon planar transistor, operating in the zero collector-base voltage mode, is used as a feedback element in an operational amplifier to obtain the log response

Investigation of leaching phenomena under conditions of unsaturated flow

Issued as Monthly reports [nos. 1-10], Project no. E-25-68

Therapeutic Horticulture as a Healing Tool for Veterans

The Department of Veterans Affairs (VA) faces a plethora of challenges as it daily encounters and treats veterans. With a great prevalence of co-occurring diagnoses, veterans’ needs today are significant and arguably more complex than ever before (Clark, Bair, Buckenmaier, Gironda & Walker, 2007; Phillips et al., 2016). The following two papers seek to build a justification for reconsidering how post-traumatic stress disorder (PTSD) is treated given the illness’ prevalence and the efficacy of current treatments. The first paper reviews the literature and includes: a chronology of the PTSD diagnosis; an examination of current treatments offered by the VA and consideration of their effectiveness; a discussion of current and alternative treatments offered for PTSD; and an exploration of therapeutic horticulture as a healing modality for veterans coping with PTSD. After reviewing the historical and theoretical foundation for this research, the second paper details a mixed method study designed to better understand the depth and breadth of therapeutic horticulture programs that have been operationalized at VA facilities. Using survey and interviews of VA personnel, the author elicited information about VA therapeutic horticulture programs and was able to deduce themes related to the genesis of programs, details of programs’ operationalization and facilitation, and the impact on veterans. The author concludes the study with recommendations for those VA facilities considering implementing a therapeutic horticulture program along with an appeal that the VA begins to more earnestly consider the increasing body of evidence concerning the efficacy of therapeutic horticulture

The Implications Of Agriculture In Interior Alaska For Population Dynamics Of Canada Geese

Thesis (Ph.D.) University of Alaska Fairbanks, 2001Understanding how environmental change affects demography is essential for understanding and managing populations. An anthropogenic change in the environment that has affected wildlife populations is widespread agricultural development. Agriculture has both negatively and positively impacted abundance of species by affecting a variety of vital rates that influence population abundance. In this study, I describe the migration ecology of Canada geese (Branta canadensis) that nest and stage in Interior Alaska. I also describe how the introduction of agriculture has potentially positively impacted population dynamics of Canada geese by increasing nutrient acquisition, thereby improving their fecundity and survival. Two subspecies of Canada geese used Interior Alaska for staging and at least partially segregated themselves during spring and fall staging. I documented a difference in survival between two age classes of Canada geese, primarily lesser Canada geese ( B. c. parvipes), and attributed it to the higher susceptibility to harvest of hatch-year (HY) geese. Estimates of annual survival of Canada geese in this study are among the lowest, and estimates of recovery rates are among the highest, for a migratory population of geese, likely due to behavioral traits and habitat selection that make lesser Canada geese more susceptibility to harvest. Survival of after-hatch-year (AHY) female Canada geese was positively associated with the amount of endogenous nutrient reserves females had at the time of banding in fall. An experimental manipulation of nutrient reserves, however, suggested that the association between nutrient reserves and survival results from variation in individual quality (not measured), not a direct relationship between nutrient reserves and survival. Female geese in our study gained fat and minerals, but not protein, during spring staging. Fall staging geese had fat levels greater than or equal to spring staging geese, suggesting fat reserves are important during early fall staging in this population of geese. Although I concluded that the introduction of agriculture has likely increased fecundity and decreased natural mortality in Canada geese that stage and breed in Interior Alaska, I also concluded that mortality due to harvest is sufficient to offset those changes, preventing an increase in the population

Transport model for radionuclide migration in the SRP lysimeters

Issued as Monthly progress reports [1-10] and Final report, Project no. E-25-60

Ways of Knowing, a Quantitative Analysis of the Intersection between the Women’s Ways of Knowing Model and Perry’s Scheme of Intellectual Development

This quantitative study looks at the intersection between two epistemological theories: (1) the Women’s Ways of Knowing Model and (2) Perry’s Scheme of Intellectual Development. Findings confirm the existence of ways of knowing structures and show that the theories largely address different meaning making constructs. Some demographic differences were found

The reconciliation between self and society in John Steinbeck's major novels

Dissertação (mestrado) - Universidade Federal de Santa Catarina, Florianópolis, 1981