Challenges faced by early-career researchers in the sciences in Australia and the consequent effect of those challenges on their careers : a mixed methods project

The purpose of the study was to explore the challenges faced by early-career researchers (ECRs) in the sciences in Australia and the consequent effect of those challenges on their careers. Using a realist/postpositivist paradigm, an evaluative approach, and a framework of job satisfaction, this project has explored and compared the views of ECRs to evaluate the factors which shape the ECR experience and contribute to job satisfaction or dissatisfaction and intention to leave, and to define the features which are necessary to keep an ECR in research. Data collection for this mixed methods study entailed a national survey of researchers working in universities and research institutes (n=658), a focus group discussion and semistructured in-depth interviews with eight women from a variety of scientific disciplines who had recently left academic research workplaces. I focussed particularly on the difficulties consequent to job insecurity: the constant need to attracting funding and a permanent position, lack of work-life balance and associated stress; and evidence of workplace difficulties such as bullying, harassment or inequity and support – or lack of it – offered by the research institutions. I examined the factors which contribute to and barriers which prevent job satisfaction of this population, and the consequent intention (if any) for ECRs to leave research or change their career path. I found an interesting situation whereby the satisfaction derived from a “love of science” was counterbalanced by stress and poor working conditions which are a consequence of lack of job security, typified by poor supervision, bullying or harassment, inequitable hiring practices, a concerning rate of impact from “questionable research practices” (impacting 34%-41% of respondents) and evidence of very high (80%) intention of ECRs to leave their position. The most significant predictor of intention to leave is time as a postdoctoral scientist: eventually the job insecurity and its associated stresses become too much and the ECRs leave their chosen career for work elsewhere. This decision, too, provides interesting findings as many of the ECRs have difficulty planning what to do next. They feel ill-prepared for an alternate career and suffer from a sense of failure as a result of having to leave academia. While addressing the shortage of funding is outside the scope of this study, in addition to offering my findings I put forward a range of recommendations which could lead to ar change of culture and benefit the wellbeing of ECRs in STEMM without incurring significant cost. The Australian Government, higher education institutions and the research community need to improve job security and workplace conditions and take better care of our people in STEMM disciplines or we will not have the scientists we need to deliver the “innovative Australia” planned for 2030 (Department of Industry Innovation and Science, 2018)Doctor of Philosoph

Meditation effects within the hippocampal complex revealed by voxel-based morphometry and cytoarchitectonic probabilistic mapping.

Scientific studies addressing anatomical variations in meditators' brains have emerged rapidly over the last few years, where significant links are most frequently reported with respect to gray matter (GM). To advance prior work, this study examined GM characteristics in a large sample of 100 subjects (50 meditators, 50 controls), where meditators have been practicing close to 20 years, on average. A standard, whole-brain voxel-based morphometry approach was applied and revealed significant meditation effects in the vicinity of the hippocampus, showing more GM in meditators than in controls as well as positive correlations with the number of years practiced. However, the hippocampal complex is regionally segregated by architecture, connectivity, and functional relevance. Thus, to establish differential effects within the hippocampal formation (cornu ammonis, fascia dentata, entorhinal cortex, subiculum) as well as the hippocampal-amygdaloid transition area, we utilized refined cytoarchitectonic probabilistic maps of (peri-) hippocampal subsections. Significant meditation effects were observed within the subiculum specifically. Since the subiculum is known to play a key role in stress regulation and meditation is an established form of stress reduction, these GM findings may reflect neuronal preservation in long-term meditators-perhaps due to an attenuated release of stress hormones and decreased neurotoxicity

The Sperner property for 132132-avoiding intervals in the weak order

A well-known result of Stanley from 1980 implies that the weak order on a maximal parabolic quotient of the symmetric group $S_n$ has the Sperner property; this same property was recently established for the weak order on all of $S_n$ by Gaetz and Gao, resolving a long-open problem. In this paper we interpolate between these results by showing that the weak order on any parabolic quotient of $S_n$ (and more generally on any $132$-avoiding interval) has the Sperner property. This result is proven by exhibiting an action of $\mathfrak{sl}_2$ respecting the weak order on these intervals. As a corollary we obtain a new formula for principal specializations of Schubert polynomials. Our formula can be seen as a strong Bruhat order analogue of Macdonald's reduced word formula. This proof technique and formula generalize work of Hamaker, Pechenik, Speyer, and Weigandt and Gaetz and Gao.Comment: 18 pages. v2: fixed typo

Short Communication: Powerless and Jobless? Comparing the Effects of Powerless Speech and Speech Disorders on an Applicant’s Employability

The present study examines the impact of a speech disorder (a lateral lisp) and powerless speech on an applicant’s hireability. College students (N = 113) reviewed an applicant’s resume, as well as a description of two occupations/job openings that varied in regard to necessitating speech. Participants listened to one of three interviews (speech disorder vs. powerless speech vs. control), indicated their willingness to hire the applicant, and then completed hire-ability and employability scales for both positions, as well as an impressions ratings form. Contrary to the hypotheses, few differences between the “employers” responses to the control and speech disorder applicants were found. The speech disorder applicant was discriminated against only when the job required speech. Powerless speech negatively affected the participants’ impressions. Compared to the other applicants, the powerless speech applicant was perceived to be the least hirable and was perceived least favorably on the majority of the impression ratings

Search Trajectory Networks of Population-based Algorithms in Continuous Spaces

We introduce search trajectory networks (STNs) as a tool to analyse and visualise the behaviour of population-based algorithms in continuous spaces. Inspired by local optima networks (LONs) that model the global structure of search spaces, STNs model the search tra-jectories of algorithms. Unlike LONs, the nodes of the network are not restricted to local optima but instead represent a given state of the search process. Edges represent search progression between consecutive states. This extends the power and applicability of network-based models to understand heuristic search algorithms. We extract and analyse STNs for two well-known population-based algorithms: particle swarm optimi-sation and differential evolution when applied to benchmark continuous optimisation problems. We also offer a comparative visual analysis of the search dynamics in terms of merged search trajectory networks

New Theories and Methods for Screen-Centred Interfaces: A Pilot Study

There is an urgent need to examine the ways in which screen-centred interfaces present images and encode and decode meaning, identity, and culture. This project is an interdisciplinary collaboration by four researchers at the University of Regina and builds on our work on screen-centred interfaces in our respective disciplines of cognitive psychology, literary studies, media studies, and software systems engineering. The fundamental goals of our collaborative project are to engage interdisciplinary means and perspectives to systematically develop effective methodologies to measure cognitive processes, aesthetic effects, and software and hardware efficacy of the new and developing digital media. In this project/pilot study we intend to select a series of media fragments that include poetic, visual, and language texts, as well as those that combine these features, and present them on a variety of screen-centred interfaces to explore their cognitive and aesthetic effects and features. &nbsp

Jet-related Excitation of the [CII] Emission in the Active Galaxy NGC 4258 with SOFIA

We detect widespread [CII]157.7um emission from the inner 5 kpc of the active galaxy NGC 4258 with the SOFIA integral field spectrometer FIFI-LS. The emission is found associated with warm H2, distributed along and beyond the end of southern jet, in a zone known to contain shock-excited optical filaments. It is also associated with soft X-ray hot-spots, which are the counterparts of the `anomalous radio arms' of NGC~4258, and a 1 kpc-long filament on the minor axis of the galaxy which contains young star clusters. Palomar-CWI H-alpha integral field spectroscopy shows that the filament exhibits non-circular motions within NGC 4258. Many of the [CII] profiles are very broad, with the highest line width, 455 km/s, observed at the position of the southern jet bow-shock. Abnormally high ratios of L([CII])/L(FIR) and L([CII])/L(PAH7.7um) are found along and beyond the southern jet and in the X-ray hotspots. These are the same regions that exhibit unusually large intrinsic [CII] line widths. This suggests that the [CII] traces warm molecular gas in shocks and turbulence associated with the jet. We estimate that as much as 40% (3.8 x 10^39 erg/s) of the total [CII] luminosity from the inner 5 kpc of NGC 4258 arises in shocks and turbulence (< 1% bolometric luminosity from the active nucleus), the rest being consistent with [CII] excitation associated with star formation. We propose that the highly-inclined jet is colliding with, and being deflected around, dense irregularities in a thick disk, leading to significant energy dissipation over a wide area of the galaxy.Comment: Accepted for Publication in the Astrophysical Journal Oct 29 201

Seeking approval from universities to research the views of their staff : do gatekeepers provide a barrier to ethical research?

A “gatekeeper” controls access to an organization; “gatekeeper approval” is often needed before external research can take place within an organization. We explore the need for gatekeeper approval for research with university staff employing, as a case study, a project which collected data in Australia. This case study addresses known issues, seemingly rarely addressed in the literature. The Human Research Ethics Committee (HREC)'s requirement for approval from individual universities to approach their staff brought significant consequences, exacerbated by the lack of university procedures for such approvals. Simultaneously, since invitations could legitimately be distributed via other avenues, such approval was superfluous. We recommend the HREC's blanket requirement for institutional approval instead be considered on a case-by-case basis depending on the risk of the research, and perhaps waived for low-risk research where participants are able to provide informed consent, and that universities establish processes to deal with requests from external researchers. © The Author(s) 2022