Predictively Mapping the Plant Associations of the North Fork John Day Wilderness in Northeastern Oregon Using Classification Tree Modeling

Shifting perspectives on restoration and management of public lands in the inland West have resulted in an increased need for maps of potential natural vegetation which cover large areas at sufficient scale to delineate individual stands . In this study, classification tree modeling was used to predictively model and map the plant association types of a relatively undisturbed wilderness area in the Blue Mountains of northeastern Oregon. Models were developed using field data and data derived from a geographic information system database. Elevation, slope, aspect, annual precipitation, solar radiation, soil type, and topographic position were important predictor variables. The model predicted plant association types with a relatively high degree of accuracy for most plant association types, with the lowest accuracy for the types within the grand fir series. Fuzzy confusion analysis was used to analyze model performance, and indicated the overall model accuracy was 72%

Evaluating Odour Attractants for Control of Wild Dogs

Attractants (odours) were assessed for their ability to attract wild dogs (dingoes, feral dogs or their hybrids) in field trials over three levels of population density and four life-cycle behaviour 'seasons'. Visitation rates and the elicited behaviour responses were recorded for eight attractant formulations. Population density exhibited no reliable effect on odour attractiveness. Seasonal factors were shown to influence the attractiveness of specific attractants. The combination of attractiveness and the correct behavioural response towards specific odour-based control devices are discussed

Evaluation Literacy: Perspectives of Internal Evaluators in Non-Government Organizations

While there is an abundance of literature on evaluation use, there has been little discussion regarding internal evaluators’ role in promoting evaluation use. Evaluation can be undervalued if context is not taken into consideration. Evalua­tion literacy is needed to make evaluation more appropriate, understandable, and accessible, particularly in non-government organizations (NGOs) where there is a growing focus on demonstrable outcomes. Evaluation literacy refers to an individ­ual’s understanding and knowledge of evaluation and is an essential component of embedding evaluation into organizational culture. In recognition of the value of the internal perspective, a small exploratory exercise was undertaken to reveal internal evaluator roles and ways of engaging with colleagues around evaluation. Th e exercise examined a key question: What is the role of evaluation literacy in internal evalua­tion in the non-government sector? Three Australian auto-narrative examples from internal evaluators highlight evaluation literacy and locate it among the multiplicity of roles required for optimal evaluation uptake. Analysis of the narratives revealed the underlying issues affecting evaluation use in NGOs and the skills needed to motivate and enable others to access, understand, and use evaluation information. Responding to the call for expanded research into internal evaluation from a practice perspective, the authors hope that the findings will stimulate a wider conversation and further advance understanding of evaluation literacy.

Using yield response curves to measure variation in the tolerance and resistance of wheat cultivars to Fusarium crown rot

The disease crown rot, caused predominantly by the fungal pathogen Fusarium pseudograminearum (Fp), is a major disease of winter cereals in many regions of the world, including Australia. A methodology is proposed, using response curves, to robustly estimate the relationship between grain yield and increasing crown rot pathogen burdens. Using data from a field experiment conducted in northern New South Wales, Australia in 2016, response curves were derived for five commercial wheat cultivars exposed to six increasing rates of crown rot inoculum, where the rates served to establish a range of crown rot pathogen burdens. In this way, the response curve methodology is fundamentally different from alternate approaches that rely on genetic or environmental variation to establish a range in pathogen burdens over which yield loss relationships are estimated. By manipulating only the rates of crown rot inoculum and thus pathogen burden directly, the number of additional confounding factors and interactions are minimised, enabling the robust estimation of the rate of change in yield due to increasing crown rot pathogen burdens for each cultivar. The methodology revealed variation in the rate of change in yield between cultivars, along with the extent of crown rot symptoms expressed by the cultivars. Variation in the rate of change in yield between cultivars provides definitive evidence of differences in the tolerance of commercial Australian wheat cultivars to crown rot caused by Fp, while variation in the extent of crown rot symptoms signifies differences in the resistance of the cultivars to this disease. The response curve methodology also revealed variation in how the different mechanisms of tolerance and resistance act to limit yield losses due to crown rot for different cultivars

Professional decision-making in medicine: Development of a new measure and preliminary evidence of validity

INTRODUCTION: This study developed a new Professional Decision-Making in Medicine Measure that assesses the use of effective decision-making strategies: seek help, manage emotions, recognize consequences and rules, and test assumptions and motives. The aim was to develop a content valid measure and obtain initial evidence for construct validity so that the measure could be used in future research or educational assessment. METHODS: Clinical scenario-based items were developed based on a review of the literature and interviews with physicians. For each item, respondents are tasked with selecting two responses (out of six plausible options) that they would choose in that situation. Three of the six options reflect a decision-making strategy; these responses are scored as correct. Data were collected from a sample of 318 fourth-year medical students in the United States. They completed a 16-item version of the measure (Form A) and measures of social desirability, moral disengagement, and professionalism attitudes. Professionalism ratings from clerkships were also obtained. A sub-group (n = 63) completed a second 16-item measure (Form B) to pilot test the instrument, as two test forms are useful for pre-posttest designs. RESULTS: Scores on the new measure indicated that, on average, participants answered 75% of items correctly. Evidence for construct validity included the lack of correlation between scores on the measure and socially desirable responding, negative correlation with moral disengagement, and modest to low correlations with professionalism attitudes. A positive correlation was observed with a clerkship rating focused on professionalism in peer interactions. CONCLUSIONS: These findings demonstrate modest proficiency in the use of decision-making strategies among fourth-year medical students. Additional research using the Professional Decision-Making Measure should explore scores among physicians in various career stages, and the causes and correlates of scores. Educators could utilize the measure to assess courses that teach decision-making strategies

WGNAM: whole-genome nested association mapping

A powerful QTL analysis method for nested association mapping populations is presented. Based on a one-stage multi-locus model, it provides accurate predictions of founder specific QTL effects

The university campus and a sense of belonging : what do students think?

The physical configuration of the university campus impacts upon student learning and experience, and can be used to signal institutional priorities. The extent to which campus, particularly in post 92 institutions, is designed as opposed to evolving as older buildings are repurposed or replaced is variable. Student experiences and perceptions of the campus physical space are also unclear. This study aimed to explore student perceptions using qualitative methods. Data were collected during 8 focus groups from 37 participants. The majority were young and female, with considerable ethnic diversity. Six major themes were identified, many of which did not directly relate to the physical space itself. Rather the impact upon students’ emotional experience and engagement with the institution was emphasised. ‘Belonging’ was the most common theme; indicating that the nature of the physical space on campus is not neutral, but can affect the extent to which students can form attachments with each other and academic staff. ‘Nature’ was the second most commonly mentioned theme. Green space has therapeutic potential in stress management, important given mental health concerns in young people including students. The ideal campus as described by participants would include green non-smoking spaces with an emphasis on health promotion. Opportunities to include nature on campus should be taken, and future proposals to design the campus should canvas student views

A proximal sensing cart and custom cooling box for improved hyperspectral sensing in a desert environment

BackgroundAdvancements in field spectrometry have the potential to increase understanding of crop growth and development in response to hot and dry environments. However, as with any instrument used for scientific advancement, it is important to continue developing and optimizing data collection protocols to promote efficiency, safety, and data quality. The goal of this study was to develop a novel data collection method, involving a proximal sensing cart with onboard cooling equipment, to improve deployments of a field spectroradiometer in a hot and dry environment. Advantages and disadvantages of the new method were compared with the traditional backpack approach and other approaches reported in literature.ResultsThe novel method prevented the spectroradiometer from overheating and nearly eliminated the need to halt data collection for battery changes. It also enabled data collection from a significantly larger field area and from more field plots as compared to the traditional backpack method. Use of a custom cooling box to stabilize operating temperatures for the field spectroradiometer also improved stability of white panel data both within and among collections despite outside air temperatures in excess of 30°C.ConclusionsAs compared to traditional data collection approaches for measuring spectral reflectance of field crops in a hot and dry environment, use of a proximal sensing cart with a customized equipment cooling box improved spectroradiometer performance, increased practicality of equipment transport, and reduced operator safety concerns

Total versus superficial parotidectomy for stage III melanoma

BackgroundThe primary purpose of this study was to describe the parotid recurrence rates after superficial and total parotidectomy.MethodsA retrospective cohort study was performed on patients with cutaneous melanoma metastatic to the parotid gland who underwent parotidectomy from 1998 through 2014. Primary outcome was parotid bed recurrence. Secondary outcomes were facial nerve function postoperatively and at last follow‐up.ResultsOne hundred twenty‐nine patients were included in the study. Thirty‐four patients (26%) underwent a total parotidectomy and 95 patients underwent superficial parotidectomy. Twelve patients (13%) developed parotid bed recurrence after superficial parotidectomy alone versus zero after total parotidectomy (P = .035). Facial nerve function, clinically detected disease, stage, and adjuvant treatment were not statistically different between the groups (P = .32, .32, .13, and 0.99, respectively).ConclusionParotid bed melanoma recurrence was more common after superficial parotidectomy compared to total parotidectomy, and recurrence resulted in significant facial nerve functional deficit. Our results support total parotidectomy when metastatic melanoma involves the parotid nodal basin.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/137735/1/hed24810_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/137735/2/hed24810.pd