Mentoring is an intellectual pillar of ethnobiology

Ethnobiology relies on community partnerships and relationships between elders or other knowledge keepers and students. Our Society of Ethnobiology, like all academic organizations, has its own issues with discrimination and abuses of power. But more than other academic disciplines, contemporary ethnobiology is practiced with and strengthened by close, respectful working relationships. As such, we offer our thoughts on the lessons ethnobiology brings to mentorship and accountability while outlining some of the specific steps we are taking as an academic and practicing community.Published versio

Publishing in Ethnobiology Letters in 2018

Ethnobiology Letters was launched in 2010 with the goal of providing a free-to-publish, open-access, online venue for short peer-reviewed articles in ethnobiology (Wolverton et al. 2010). Over the course of nine volumes, which comprise 12 issues, published since that date, Ethnobiology Letters has grown and changed, with new editors, authors, and submission categories. We write this editorial to highlight those changes, as well as to report submission and review metrics for the journal since the inception of our online journal management system. We describe the current status of Ethnobiology Letters and plans for the future of the journal.Published versio

Geometric Optimization of Solar Concentrating Collectors using Quasi-Monte Carlo Simulation

This thesis is a study of the geometric design of solar concentrating collectors. In this work, a numerical optimization methodology was developed and applied to various problems in linear solar concentrator design, in order to examine overall optimization success as well as the effect of various strategies for improving computational efficiency. Optimization is performed with the goal of identifying the concentrator geometry that results in the greatest fraction of incoming solar radiation absorbed at the receiver surface, for a given collector configuration. Surfaces are parametrically represented in two-dimensions, and objective function evaluations are performed using various Monte Carlo ray-tracing techniques. Design optimization is performed using a gradient-based search scheme, with the gradient approximated through finite-difference estimation and updates based on the direction of steepest-descent. The developed geometric optimization methodology was found to perform with mixed success for the given test problems. In general, in every case a significant improvement in performance was achieved over that of the initial design guess, however, in certain cases, the quality of the identified optimal geometry depended on the quality of the initial guess. It was found that, through the use of randomized quasi-Monte Carlo, instead of traditional Monte Carlo, overall computational time to converge is reduced significantly, with times typically reduced by a factor of four to six for problems assuming perfect optics, and by a factor of about 2.5 for problems assuming realistic optical properties. It was concluded that the application of numerical optimization to the design of solar concentrating collectors merits additional research, especially given the improvements possible through quasi-Monte Carlo techniques

Apathy in UK Care Home Residents with Dementia: Longitudinal Course and Determinants

Background: Apathy in dementia is common and associated with worse disease outcomes. // Objective: To describe the longitudinal course of apathy in dementia and identify associated sociodemographic and disease-related factors. // Methods: Prospective cohort study of UK care home residents with dementia. At baseline, 4, 8, 12, and 16 months, care home staff rated apathy using the Neuropsychiatric Inventory (clinically-significant apathy if≥4), dementia severity, and provided other sociodemographic information about each participant. We examined the prevalence and persistence of apathy and, in mixed linear models, its association with time, age, sex, dementia severity, antipsychotic use, and baseline apathy and other neuropsychiatric symptoms. // Results: Of 1,419 included participants (mean age 85 years (SD 8.5)), 30% had mild dementia, 33% moderate, and 37% severe. The point prevalence of clinically-significant apathy was 21.4% (n = 304) and the 16-month period prevalence was 47.3% (n = 671). Of participants with follow-up data, 45 (3.8%) were always clinically-significantly apathetic, 3 (0.3%) were always sub-clinically apathetic, and 420 (36.2%) were never apathetic until death or end of follow-up. In adjusted models, apathy increased over time and was associated with having more severe dementia, worse baseline apathy and other neuropsychiatric symptoms. // Conclusion: It is important for clinicians to know that most people with dementia are not apathetic, though it is common. Most of those with significant symptoms of apathy improve without specific treatments, although some also relapse, meaning that intervention may not be needed. Future research should seek to target those people with persistent severe apathy and test treatments in this group

Reconceptualising Preservice Teachers’ Subject Knowledge in Climate Change and Sustainability Education: A Framework for Initial Teacher Education from England, UK

Climate Change and Sustainability Education (CCSE) has been gaining prominence with the imminent climate emergency humanity is facing. This paper draws upon a conceptual framework created to support the development of preservice teachers’ subject knowledge of CCSE whilst undertaking Initial Teacher Education (ITE) programs in England. The core aims and learning outcomes within the framework, namely knowledge; attitudes, values and behaviours; and competences and capabilities, are defined to illustrate what subject knowledge looks like, in this area, for preservice teachers in England. This paper highlights data gathered from 71 preservice teachers via an initial presurvey from three ITE institutions across England. The data were gathered from Early Years and Primary and Secondary phase trainees across both postgraduate and undergraduate programmes. The presurvey captured a range of qualitative and quantitative responses from preservice teachers to showcase priority areas, from their perspective, in the teaching of CCSE. The responses were coded and then themed according to the three aims and learning outcomes of the framework (knowledge; attitudes, values and behaviours; and competences and capabilities) to understand preservice teachers’ views on CCSE at the start of their courses. The findings suggest that preservice teachers lack key subject knowledge in CCSE to teach it effectively in schools. Hence, this paper recommends further work needs to be carried out to embed CCSE work in ITE courses across England. It is further suggested that the CCSE framework highlighted in this paper can act as a key national document to support ITE institutions to conceptualise the teaching and learning of CCSE across their ITE programmes

A systematic review of the effects of psychiatric medications on social cognition

INTRODUCTION: Social cognition is an important area of mental functioning relevant to psychiatric disorders and social functioning, that may be affected by psychiatric drug treatments. The aim of this review was to investigate the effects of medications with sedative properties, on social cognition. METHOD: This systematic review included experimental and neuroimaging studies investigating drug effects on social cognition. Data quality was assessed using a modified Downs and Black checklist (Trac et al. CMAJ 188: E120-E129, 2016). The review used narrative synthesis to analyse the data. RESULTS: 40 papers were identified for inclusion, 11 papers investigating benzodiazepine effects, and 29 investigating antipsychotic effects, on social cognition. Narrative synthesis showed that diazepam impairs healthy volunteer’s emotion recognition, with supporting neuroimaging studies showing benzodiazepines attenuate amygdala activity. Studies of antipsychotic effects on social cognition gave variable results. However, many of these studies were in patients already taking medication, and potential practice effects were identified due to short-term follow-ups. CONCLUSION: Healthy volunteer studies suggest that diazepam reduces emotional processing ability. The effects of benzodiazepines on other aspects of social cognition, as well as the effects of antipsychotics, remain unclear. Interpretations of the papers in this review were limited by variability in measures, small sample sizes, and lack of randomisation. More robust studies are necessary to evaluate the impact of these medications on social cognition. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12888-021-03545-z

Evolutionary repair:Changes in multiple functional modules allow meiotic cohesin to support mitosis

The role of proteins often changes during evolution, but we do not know how cells adapt when a protein is asked to participate in a different biological function. We forced the budding yeast, Saccharomyces cerevisiae, to use the meiosis-specific kleisin, recombination 8 (Rec8), during the mitotic cell cycle, instead of its paralog, Scc1. This perturbation impairs sister chromosome linkage, advances the timing of genome replication, and reduces reproductive fitness by 45%. We evolved 15 parallel populations for 1,750 generations, substantially increasing their fitness, and analyzed the genotypes and phenotypes of the evolved cells. Only one population contained a mutation in Rec8, but many populations had mutations in the transcriptional mediator complex, cohesin-related genes, and cell cycle regulators that induce S phase. These mutations improve sister chromosome cohesion and delay genome replication in Rec8-expressing cells. We conclude that changes in known and novel partners allow cells to use an existing protein to participate in new biological functions