Introduction aux Études critiques en autisme (ÉCA) issues de la recherche anglophone

Within the historic context of a distinct lack of autistic people’s representation in research, a body of emancipatory research is emerging under the banner of critical autism studies (CAS). The focus of CAS is the co-creation of scientific knowledge to produce research by and for the autistic community. Most CAS research emanates from the United Kingdom and Australia (e.g., Chown et al., 2017; Pellicano et al., 2014), with little present within Francophone academia in French as emancipatory design in disability research has only emerged since the 2010s. This paper aims to introduce CAS from the Anglophone academia. We begin by stating the fundamental principles of the neurodiversity movement in which CAS has taken root (Chamak, 2010; et al.; Nicolaidis, 2012). Next, we contrast the predominant medical model with the social model of disability (Chamak, 2010, Rosqvist et al., 2020). We then discuss CAS principles such as acknowledgement of power imbalances, recognition of autistic people’s meaningful input to research, and inclusiveness through adapting the research environment (Waltz 2009; Fletcher-Watson et al. 2019; Pickard et al., 2021; Rosqvist et al., 2019). We consider potential obstacles to CAS within the academic culture, such as lack of trusting relationships, practical and systemic barriers, and limited investment to support collaborative research (Pickard et al., 2021; Rosqvist et al., 2019). This paper concludes by discussing the need for a change in the language used to refer to autism (Fletcher-Watson et al., 2019; Woods, 2017) and environmental modifications to facilitate fair and socially just inclusion of neurodivergent people (Fletcher-Watson et al., 2019), within research and wider society

Rates of species introduction to a remote oceanic island

The introduction of species to areas beyond the limits of their natural distributions has a major homogenizing influence, making previously distinct biotas more similar. The scale of introductions has frequently been commented on, but their rate and spatial pervasiveness have been less well quantified. Here, we report the findings of a detailed study of pterygote insect introductions to Gough Island, one of the most remote and supposedly pristine temperate oceanic islands, and estimate the rate at which introduced species have successfully established. Out of 99 species recorded from Gough Island, 71 are established introductions, the highest proportion documented for any Southern Ocean island. Estimating a total of approximately 233 landings on Gough Island since first human landfall, this equates to one successful establishment for every three to four landings. Generalizations drawn from other areas suggest that this may be only one-tenth of the number of pterygote species that have arrived at the island, implying that most landings may lead to the arrival of at least one alien. These rates of introduction of new species are estimated to be two to three orders of magnitude greater than background levels for Gough Island, an increase comparable to that estimated for global species extinctions (many of which occur on islands) as a consequence of human activities

Photography of the western sahara desert from the mercury ma-4 spacecraft

Photography of western Sahara Desert from Mercury MA-4 spacecraf

Adaptive Sports Equipment: A Resource for Clinicians, Coaches, & Athletes

About 61 million adults who live in the United States (US) have a disability, which equates to about one in four adults in the US (Centers for Disease Control and Prevention [CDC], 2020). Unfortunately, only one out of every ten people who need assistive technology (AT) have access to the proper equipment, with lack of awareness of the devices being one of the causes (World Health Organization [WHO], 2018). It has been noted in literature that a lack of awareness exists amongst clinicians, coaches, & athletes regarding available adaptive equipment (AE) to support participation in adaptive sports ([AS] Bergem, 2020). The lack of knowledge of adaptive sports equipment amongst clinicians, coaches, and athletes with disabilities is a barrier to participation in AS. The purpose of this capstone project was to create an online resource that describes the types of AE available to enable participation in AS by athletes with disabilities. The Human Activity Assistive Technology (HAAT) Model was used to develop this online resource that considered a range of activities, contexts, and client factors that determine the selection of AE to participate in sports. A comprehensive adaptive sports equipment resource was published on CAF’s website that provides information on AE for 18 sports total. Further expansion of the webpage is needed to include AE for additional sports, ensuing improved access to and knowledge of adaptive sports equipment among clinicians, coaches, and athletes with disabilities.https://soar.usa.edu/otdcapstonesspring2023/1005/thumbnail.jp

Thermal preference and performance in a sub-Antarctic caterpillar: A test of the coadaptation hypothesis and its alternatives.

Physiological ecologists have long assumed that thermoregulatory behaviour will evolve to optimise physiological performance. The coadaptation hypothesis predicts that an animal\u27s preferred body temperature will correspond to the temperature at which its performance is optimal. Here we use a strong inference approach to examine the relationship between thermal preference and locomotor performance in the caterpillars of a wingless sub-Antarctic moth, Pringleophaga marioni Viette (Tineidae). The coadaptation hypothesis and its alternatives (suboptimal is optimal, thermodynamic effect, trait variation) are tested. Compared to the optimal movement temperature (22.5°C for field-fresh caterpillars and 25, 20, 22.5, 25 and 20°C following seven day acclimations to 0, 5, 10, 15 and 5-15°C respectively), caterpillar thermal preference was significantly lower (9.2°C for field-fresh individuals and 9.4, 8.8, 8.1, 5.2 and 4.6°C following acclimation to 0, 5, 10, 15 and 5-15°C, respectively). Together with the low degree of asymmetry observed in the performance curves, and the finding that acclimation to high temperatures did not result in maximal performance, all, but one of the above hypotheses (i.e. \u27trait variation\u27) was rejected. The thermal preference of P. marioni caterpillars more closely resembles temperatures at which survival is high (5-10°C), or where feeding is optimal (10°C), than where locomotion speed is maximal, suggesting that thermal preference may be optimised for overall fitness rather than for a given trait

Similar metabolic rate-temperature relationships after acclimation at constant and fluctuating temperatures in caterpillars of a sub-Antarctic moth.

Temperature compensation in whole-animal metabolic rate is one of the responses thought, controversially, to characterize insects from low temperature environments. Temperature compensation may either involve a change in absolute values of metabolic rates or a change in the slope of the metabolic rate - temperature relationship. Moreover, assessments of compensation may be complicated by animal responses to fluctuating temperatures. Here we examined whole animal metabolic rates, at 0 °C, 5 °C, 10 °C and 15 °C, in caterpillars of the sub-Antarctic moth, Pringleophaga marioni Viette (Tineidae), following one week acclimations to 5 °C, 10 °C and 15 °C, and fluctuating temperatures of 0-10 °C, 5-15 °C, and 10-20 °C. Over the short term, temperature compensation was found following acclimation to 5 °C, but the effect size was small (3-14%). By comparison with caterpillars of 13 other lepidopteran species, no effect of temperature compensation was present, with the relationship between metabolic rate and temperature having a Q10 of 2 among species, and no effect of latitude on temperature-corrected metabolic rate. Fluctuating temperature acclimations for the most part had little effect compared with constant temperatures of the same mean value. Nonetheless, fluctuating temperatures of 5-15 °C resulted in lower metabolic rates at all test temperatures compared with constant 10 °C acclimation, in keeping with expectations from the literature. Absence of significant responses, or those of large effect, in metabolic rates in response to acclimation, may be a consequence of the unpredictable temperature variation over the short-term on sub-Antarctic Marion Island, to which P. marioni is endemic

Photon rockets and gravitational radiation

The absence of gravitational radiation in Kinnersley's ``photon rocket'' solution of Einstein's equations is clarified by studying the mathematically well-defined problem of point-like photon rockets in Minkowski space (i.e. massive particles emitting null fluid anisotro\-pically and accelerating because of the recoil). We explicitly compute the (uniquely defined) {\it linearized} retarded gravitational waves emitted by such objects, which are the coherent superposition of the gravitational waves generated by the motion of the massive point-like rocket and of those generated by the energy-momentum distribution of the photon fluid. In the special case (corresponding to Kinnersley's solution) where the anisotropy of the photon emission is purely dipolar we find that the gravitational wave amplitude generated by the energy-momentum of the photons exactly cancels the usual $1/r$ gravitational wave amplitude generated by the accelerated motion of the rocket. More general photon anisotropies would, however, generate genuine gravitational radiation at infinity. Our explicit calculations show the compatibility between the non-radiative character of Kinnersley's solution and the currently used gravitational wave generation formalisms based on post-Minkowskian perturbation theory.Comment: 21 pages, LATEX, submitted to Class. Quant. Gra

What measurable zero point fluctuations can(not) tell us about dark energy

We show that laboratory experiments cannot measure the absolute value of dark energy. All known experiments rely on electromagnetic interactions. They are thus insensitive to particles and fields that interact only weakly with ordinary matter. In addition, Josephson junction experiments only measure differences in vacuum energy similar to Casimir force measurements. Gravity, however, couples to the absolute value. Finally we note that Casimir force measurements have tested zero point fluctuations up to energies of ~10 eV, well above the dark energy scale of ~0.01 eV. Hence, the proposed cut-off in the fluctuation spectrum is ruled out experimentally.Comment: 4 page

Barriers to healthcare and a ‘triple empathy problem’ may lead to adverse outcomes for autistic adults: A qualitative study

Autistic people experience more co-occurring health conditions and, on average, die younger than non-autistic people. Despite growing awareness of health inequities, autistic people still report barriers to accessing healthcare. We aimed to explore the experiences of autistic people accessing healthcare, shining a light on the complex interplay of relevant factors and to explain, at least in part, the possible reasons underling health disparities and adverse health outcomes. This is a qualitative study from an autistic research team. Data were collected from 1248 autistic adults as part of a large, mixed-methods, international survey exploring barriers to primary healthcare. This article reports the qualitative findings, following a thematic analysis. Using our exploratory findings, we then constructed a model to explain the reported experiences. Respondents reported a variety of barriers. Here, our article gives voice to their stories, in their own words. Themes included: early barriers; communication mismatch; doubt – in oneself and from doctors; helplessness and fear; and healthcare avoidance and serious adverse health outcomes. Our constructed model outlines a chronological journey through which healthcare access barriers may lead to adverse health outcomes. Our findings also build on the double empathy problem, situating this in a medical context, proposing a triple empathy problem