Perfectionism explains variance in self-defeating behaviors beyond self-criticism: Evidence from a cross-national sample

Does perfectionism predict maladjustment beyond self-criticism? Attention to this key question is needed as some studies suggest perfectionism may not explain variance in maladjustment beyond self-criticism. Using a large cross-national sample of 524 undergraduates (229 Canadian, 295 British), this study examined whether evaluative concerns perfectionism (socially prescribed perfectionism, concern over mistakes, doubts about actions) explained variance in self-defeating behaviors (binge eating, procrastination, interpersonal conflict) after controlling for selfcriticism. Results showed that—after controlling for self-criticism—concern over mistakes predicted binge eating, doubts about actions predicted procrastination, and socially prescribed perfectionism and concern over mistakes predicted interpersonal conflict. Self-criticism also uniquely predicted self-defeating behaviors beyond evaluative concerns perfectionism. The relationships that evaluative concerns perfectionism shows with self-defeating behaviors appear neither redundant with nor fully captured by self-criticism. Results dovetail with theoretical accounts suggesting evaluative concerns perfectionism is a uniquely important part of the personality of people prone to self-defeating behaviors

A Small-Scale Modification to the Lensing Kernel

Calculations of the Cosmic Microwave Background lensing power implemented into the standard cosmological codes such as CAMB and CLASS usually treat the surface of last scatter as an infinitely thin screen. However, since the CMB anisotropies are smoothed out on scales smaller than the diffusion length due to the effect of Silk damping, the photons which carry information about the small-scale density distribution come from slightly earlier times than the standard recombination time. The dominant effect is the scale dependence of the mean redshift associated with the fluctuations during recombination. We find that fluctuations at $k = 0.01 {\rm \ Mpc^{-1}}$ come from a characteristic redshift of $z \approx 1090$, while fluctuations at $k = 0.3 {\rm \ Mpc^{-1}}$ come from a characteristic redshift of $z \approx 1130$. We then estimate the corrections to the lensing kernel and the related power spectra due to this effect. We conclude that neglecting it would result in a deviation from the true value of the lensing kernel at the half percent level at small CMB scales. For an all-sky, noise-free experiment, this corresponds to a $\sim 0.1 \sigma$ shift in the observed temperature power spectrum on small scales ($2500 \lesssim l \lesssim 4000$).Comment: 5 pages, 5 figure

Contamination of early-type galaxy alignments to galaxy lensing-CMB lensing cross-correlation

Galaxy shapes are subject to distortions due to the tidal field of the Universe. The cross-correlation of galaxy lensing with the lensing of the Cosmic Microwave Background (CMB) cannot easily be separated from the cross-correlation of galaxy intrinsic shapes with CMB lensing. Previous work suggested that the intrinsic alignment contamination can be $15\%$ of this cross-spectrum for the CFHT Stripe 82 (CS82) and Atacama Cosmology Telescope surveys. Here we re-examine these estimates using up-to-date observational constraints of intrinsic alignments at a redshift more similar to that of CS82 galaxies. We find a $\approx$ $10\%$ contamination of the cross-spectrum from red galaxies, with $\approx$ $3\%$ uncertainty due to uncertainties in the redshift distribution of source galaxies and the modelling of the spectral energy distribution. Blue galaxies are consistent with being unaligned, but could contaminate the cross-spectrum by an additional $9.5\%$ within current $95\%$ confidence levels. While our fiducial estimate of alignment contamination is similar to previous work, our work suggests that the relevance of alignments for CMB lensing-galaxy lensing cross-correlation remains largely unconstrained. Little information is currently available about alignments at $z>1.2$. We consider the upper limiting case where all $z>1.2$ galaxies are aligned with the same strength as low redshift luminous red galaxies, finding as much as $\approx$ $60\%$ contamination.Comment: 11 pages, 3 figures, MNRAS submitte

Comparison of sampling techniques for Bayesian parameter estimation

The posterior probability distribution for a set of model parameters encodes all that the data have to tell us in the context of a given model; it is the fundamental quantity for Bayesian parameter estimation. In order to infer the posterior probability distribution we have to decide how to explore parameter space. Here we compare three prescriptions for how parameter space is navigated, discussing their relative merits. We consider Metropolis-Hasting sampling, nested sampling and affine-invariant ensemble MCMC sampling. We focus on their performance on toy-model Gaussian likelihoods and on a real-world cosmological data set. We outline the sampling algorithms themselves and elaborate on performance diagnostics such as convergence time, scope for parallelisation, dimensional scaling, requisite tunings and suitability for non-Gaussian distributions. We find that nested sampling delivers high-fidelity estimates for posterior statistics at low computational cost, and should be adopted in favour of Metropolis-Hastings in many cases. Affine-invariant MCMC is competitive when computing clusters can be utilised for massive parallelisation. Affine-invariant MCMC and existing extensions to nested sampling naturally probe multi-modal and curving distributions.Comment: 13 pages, 6 figure

Building bridges for education for sustainability: 2013 Report for the development of education for sustainability through the Monash-Warwick Alliance

This report presents findings from a research project that focused on the potential to expand Education for Sustainability (EfS) related activities at Monash and Warwick Universities, through the Monash-Warwick Alliance. It provides details of existing EfS programmes and activities at both universities. It also discusses the level of enthusiasm for and interest in a combined EfS initiative. Finally, it signposts the future development of EfS at Monash and Warwick, whilst acknowledging the challenges to innovation. The report is informed by interviews with university stakeholders, including academics, support staff, senior management and students. Findings are placed within a wider context through a review of the current EfS literature

Children's access to urban gardens in Norway, India and the United Kingdom

Background: This study investigates access to gardens for children in Norway, India and the United Kingdom and their respective potentials for sustainability learning. The focus is set upon the significant variations concerning garden access within these three countries, within the specific context of urban gardening at a city scale. The article explores three case study cities: Stavanger, Norway; Mumbai, India; and Cardiff, UK. Previous research has shown that nature and garden experiences can provide play opportunities, skills and sensuous perceptions that may lead to the permanent retention of knowledge, and may awaken and unfold the child’s interests. Material and methods: Conceptualized in theories of situated learning and place-based learning, each researcher - native and/or living in Norway, UK and India, respectively - has gathered qualitative data and focused on the phenomena she found to be appropriate for the study of each respective city. The findings, based on literature studies and the author’s own experiences and observations, are presented in form of narratives. A phenomenological and hermeneutical framework and critical inquiry is used to give relevance to the complex interrelations between the three researcher’s different backgrounds and perspectives. Results: The narratives elucidate rather different characteristics, practices, activities and values related to gardens in the three cities, where children interact in multiple ways with various kinds of garden spaces. Children are typically close to nature in Stavanger, while very small ‘windowsills’ characterize the many childhood interactions with gardens in Mumbai and in Cardiff, children may have access to both private and public gardens, depending upon their circumstances. Conclusions: The three perspectives give inspirations for promoting children’s ecology, sustainability, and intergenerational learning in urban garden spaces

"We were treated like adults" - development of a pre-medicine summer school for 16 year olds from deprived socioeconomic backgrounds: action research study

Objective To develop a one week widening access summer school for 16 year old pupils from, non-traditional backgrounds who are considering applying to medical school, and to identify its short term impact and key success factors.Design Action research with partnership schools tit deprived inner-city areas in five overlapping phases: schools liaison, recruitment of pupils and assessment of needs, programme design, programme delivery, and evaluation. The design phase incorporated findings from one-to-one interviews with every pupil, and workshops and focus groups for pupils, Parents, teachers, medical student assistants, NHS staff, and other stakeholders. An in-depth process evaluation of the summer School was undertaken from the perspective of multiple stakeholders using questionnaires, interviews, focus groups, and observation.Participants 40 pupils aged 16 years from socioeconomically deprived and under-represented ethnic Minority groups.Results The summer school was popular with pupils, parents, teachers, and staff. It substantially raised pupils' confidence and motivation to apply to medical school. Critical success factors were identified as an atmosphere of "respect"; a focus on hands-on work in small groups; the input. of medical students as role models; and vision and leadership from senior staff. A particularly popular and effective aspect Of the course was a grand round held Oil the last clay, in which pupils gave group presentations of real cases.Conclusion An action research format allowed us to draw the different stakeholders into a collaborative endeavour characterised by enthusiasm, interpersonal support, and mutual respect. The input from pupils to the programme design ensured high engagement and low drop-out rates. Hands-on activities in small groups and social drama of preparing and giving a grand round presentation were particularly important

Time-ordered data simulation and map-making for the PIXIE Fourier transform spectrometer

We develop a time-ordered data simulator and map-maker for the proposed PIXIE Fourier transform spectrometer and use them to investigate the impact of polarization leakage, imperfect collimation, elliptical beams, sub-pixel effects, correlated noise and spectrometer mirror jitter on the PIXIE data analysis. We find that PIXIE is robust to all of these effects, with the exception of mirror jitter which could become the dominant source of noise in the experiment if the jitter is not kept significantly below $0.1\mu m\sqrt{s}$. Source code is available at https://github.com/amaurea/pixie.Comment: 27 pages, 15 figures. Accepted for publication in JCA

Λ\LambdaCDM or self-interacting neutrinos? - how CMB data can tell the two models apart

Of the many proposed extensions to the $\Lambda$CDM paradigm, a model in which neutrinos self-interact until close to the epoch of matter-radiation equality has been shown to provide a good fit to current cosmic microwave background (CMB) data, while at the same time alleviating tensions with late-time measurements of the expansion rate and matter fluctuation amplitude. Interestingly, CMB fits to this model either pick out a specific large value of the neutrino interaction strength, or are consistent with the extremely weak neutrino interaction found in $\Lambda$CDM, resulting in a bimodal posterior distribution for the neutrino self-interaction cross section. In this paper, we explore why current cosmological data select this particular large neutrino self-interaction strength, and by consequence, disfavor intermediate values of the self-interaction cross section. We show how it is the $\ell \gtrsim 1000$ CMB temperature anisotropies, most recently measured by the Planck satellite, that produce this bimodality. We also establish that smaller scale temperature data, and improved polarization data measuring the temperature-polarization cross-correlation, will best constrain the neutrino self-interaction strength. We forecast that the upcoming Simons Observatory should be capable of distinguishing between the models.Comment: 7 pages, 7 figures, comments welcome, references added, version submitted to PR