City flight migration patterns in the East Midlands

This paper investigates migration to and from the Three Cities of Derby, Leicester and Nottingham. It investigates whether these cities lose more migrants than they gain from more rural parts of the city-regions and the extent to which these flows impact on the demographic profiles of the Three Cities

A Qualitative Study Exploring the Lived Experiences of Teachers of Color in Predominately White K–12 Environments

The purpose of this qualitative study was to describe the lived experiences of teachers of color and identify commonalities within the lived experiences of teachers of color employed in predominately White K–12 schools. This study utilized interpretive phenomenological analysis as viewed through the White racial frame lens. There were 15 participants that were included in this research study. Participants were teachers of color with at least 5 years of teaching experience in predominately White K–12 environments. Data collection procedures included confidential virtual, semistructured interviews that included specific information the researcher wanted to explore. Six themes were revealed: (a) cultural advocacy, (b) congregating and derogatory comments, (c) lack of academic freedom, (d) lack of professional connectivity and microaggressions, (e) coping strategies while maintaining professionalism, and (f) political divide. The findings revealed that teachers of color build networks with other teachers of color, engage in self-advocacy and prayer, and choose to ignore microaggressions. Some participants decided to engage in race conversations to educate their White peers as a way of fostering understanding and empathy. While teachers of color were silenced and marginalized, they continued to maintain their professionalism in predominately White K–12 environments

A ratio model of perceived speed in the human visual system

The perceived speed of moving images changes over time. Prolonged viewing of a pattern (adaptation) leads to an exponential decrease in its perceived speed. Similarly, responses of neurones tuned to motion reduce exponentially over time. It is tempting to link these phenomena. However, under certain conditions, perceived speed increases after adaptation and the time course of these perceptual effects varies widely. We propose a model that comprises two temporally tuned mechanisms whose sensitivities reduce exponentially over time. Perceived speed is taken as the ratio of these filters' outputs. The model captures increases and decreases in perceived speed following adaptation and describes our data well with just four free parameters. Whilst the model captures perceptual time courses that vary widely, parameter estimates for the time constants of the underlying filters are in good agreement with estimates of the time course of adaptation of direction selective neurones in the mammalian visual system

Gambling problems and help-seeking in serving United Kingdom military personnel: a qualitative study

Introduction In military personnel are vulnerable to gambling problems, yet many are reluctant to seek help. The aim of the current study was to explore the lived experience of problem gambling and help-seeking among serving members of the United Kingdom Armed Forces. Methods Seventeen individuals from a larger, cross-sectional survey of gambling and wellbeing in the Royal Air Force (RAF) completed semi-structured interviews. Interview questions focused on personal experiences, the context of the RAF and its influence, knowledge and experiences of treatment and support services, and the impact of COVID-19. Results Reflexive thematic analysis revealed four themes: (1) harmful and protective occupational factors; (2) socio-cultural and personal influences; (3) organizational attitudes toward mental health and help-seeking, and (4) current support pathways and provision. Discussion Findings also indicated that gambling and alcohol use are common within the RAF, and that personnel are actively coping with mental health challenges

Standardization of G. mellonella Larvae to Provide Reliable and Reproducible Results in the Study of Fungal Pathogens

This is the final version of the article. Freely available from MDPI via the DOI in this record.In the past decade, Galleria mellonella (wax moth) larvae have become widely used as a non-mammalian infection model. However, the full potential of this infection model has yet to be realised, limited by the variable quality of larvae used and the lack of standardised procedures. Here, we review larvae suitable for research, protocols for dosing larvae, and methods for scoring illness in larvae infected with fungal pathogens. The development of standardised protocols for carrying out our experimental work will allow high throughput screens to be developed, changing the way in which we evaluate panels of mutants and strains. It will also enable the in vivo screening of potential antimicrobials at an earlier stage in the research and development cycle

Limits on the Mass, Velocity and Orbit of PSR J1933−-6211

We present a high-precision timing analysis of PSR J1933$-$6211, a millisecond pulsar (MSP) with a 3.5-ms spin period and a white dwarf (WD) companion, using data from the Parkes radio telescope. Since we have accurately measured the polarization properties of this pulsar we have applied the matrix template matching approach in which the times of arrival are measured using full polarimetric information. We achieved a weighted root-mean-square timing residuals (rms) of the timing residuals of 1.23 $\rm \mu s$, 15.5$\%$ improvement compared to the total intensity timing analysis. After studying the scintillation properties of this pulsar we put constraints on the inclination angle of the system. Based on these measurements and on $\chi^2$ mapping we put a 2-$\sigma$ upper limit on the companion mass (0.44 M$_\odot$). Since this mass limit cannot reveal the nature of the companion we further investigate the possibility of the companion to be a He WD. Applying the orbital period-mass relation for such WDs, we conclude that the mass of a He WD companion would be about 0.26$\pm$0.01 M$_\odot$ which, combined with the measured mass function and orbital inclination limits, would lead to a light pulsar mass $\leqslant$ 1.0 M$_\odot$. This result seems unlikely based on current neutron star formation models and we therefore conclude that PSR J1933$-$6211 most likely has a CO WD companion, which allows for a solution with a more massive pulsar