Canada is regarded as an early adopter of democratic innovations, including the high-profile BC Citizens’ Assembly on Electoral Reform. To what extent has Canada maintained this trajectory? We examine this in the context of breadth and depth by examining trends in adoption over time across Canada and case-level adoption according to the dimensions of influence and temporality. While case studies of Canadian democratic innovations exist, these do not provide analytical capacity to understand trends in the breadth of adoption; we thus contribute a novel dataset of democratic innovations in Canada from 2000 to 2020. To analyze the depth of adoption, we present a two-by-three framework, which we apply to interpret our dataset of Canadian democratic innovations. We find that while there is an increase in the total number of democratic innovations, a low quantity is observed that exhibits high influence and permanence.

Time-domain characterization of ultrashort pulses is essential for studying interactions between light and matter. Here, we propose and demonstrate an all-optical pulse sampling technique based on reflected four-wave mixing with perturbation on a solid surface. In this method, a weak perturbation pulse perturbs the four-wave mixing signal generated by a strong fundamental pulse. The modulation signal of the four-wave mixing, which is detected in the reflection geometry to ensure a perfect phase-matching condition, directly reflects the temporal profile of the perturbation pulse. We successfully characterized multi-cycle and few-cycle pulses using this method. The reliability of our approach was verified by comparing it to the widely employed frequency-resolved optical gating method. This technique provides a simple and robust method for characterizing ultrashort laser pulses.

After outlining sceptical theism (ST) and the fine-tuning argument (FTA), I demonstrate how arguments for the former undercut the latter. I then consider and reject three recent proposals for ameliorating the conflict: positive ST, considerations about normative superiors, and appeal to theistic metaethics. I contend, however, that Kirk Durston’s complexity argument for ST does not undercut the FTA but in fact supports it. In defending that thesis, I respond to Climenhaga’s contention that ST undermines all warrant for theistic belief, the FTA included.

This paper investigates the increasing, but complex, support for reparations among Democratic elected officials—highlighting their tendency to endorse the concept while deferring discussion of policy details. This strategic ambiguity is common in policy discourse and can be embedded within policy design, such as legislative proposals to create commissions tasked with studying and recommending future actions on reparations. The effectiveness of these reparations commissions is uncertain. They could represent productive steps toward genuine reparations or simply serve to alleviate political pressure without any substantial policy changes. We explore these potential outcomes in three inter-related analyses: a compilation and comparison of all bills mentioning slavery reparations introduced at the federal and state level, the first nationally representative public opinion poll asking about support for reparations commissions, and a content analysis of legislative bill texts establishing reparations commissions. Our findings suggest that while reparations commissions offer an effective way for Democratic policymakers to manage conflicting constituency pressures in the short term, their potential to propel forward, rather than stall, the reparations debate hinges on their design and execution.

Although many positive social changes have been achieved over the past 30 years, members of LGBT, Sistergirl and Brotherboy communities continue to encounter negative experiences with health and ageing service provision. In this article, 232 responses from a survey exploring ageing and care concerns and preferences among LGBT, Sistergirl and Brotherboy communities in Australia were analysed using chi square analysis. The largest proportion of participants were aged 55–64 years (26.4%, n = 61), with the majority residing in metropolitan regions (67.7%, n = 154). The three most frequently selected gender identities were cisgender woman (40.1%, n = 93), cisgender man (39.7%, n = 92) and non-binary (11.6%, n = 28). The three most frequently selected sexual orientations were gay (39.2%, n = 91), lesbian (32.0%, n = 77) and queer (17.7%, n = 41). While many concerns demonstrated no age-related differences, concerns regarding physical differences, respect and inclusion, finances and standard of care reflected higher levels of concern among younger participants compared with older participants. Preferences for receiving information reflected a desire for LGBT, Sistergirl and Brotherboy communities-specific resources for options for support from participants approaching retirement, that is, aged 55–64 (x2 (5, n = 178) = 11.08, p = 0.050); less desire for information provided through public health service services among participants aged 65+ (x2 (5, n = 178) = 15.58, p = 0.008); and variation in preferences regarding supports provided by LGBT, Sistergirl and Brotherboy communities. Results suggest that different generations of LGBT, Sistergirl and Brotherboy members may prefer to receive services and information in different ways. Further research is needed to understand how concerns, expectations and preferences are influenced across generations.

Urban areas are increasingly recognized as important centers of biodiversity. Nonetheless, invasive species can reduce this biodiversity, and cities can be hubs for alien plant invasions, highlighting the need to monitor urban biodiversity and problematic alien species. The goal of our study was to assess the distribution of wild chervil [Anthriscus sylvestris (L.) Hoffm.] and anise [Myrrhis odorata (L.) Scop.] in green spaces of Reykjavík, Iceland. This information is necessary to implement the city’s biodiversity strategy regarding invasive species. Both of these alien plants are spreading throughout Iceland, and Reykjavík’s high-latitude location (≥63°N) and remoteness make it an ideal case study to assess alien plant introductions and invasions in subarctic urban areas. We surveyed four green spaces (Laugarnes, Vatnsmýri, Elliðaárdalur, and Ægisiða) from May to October 2017 using AllTrailsPro and ArcGIS mobile applications. ANOVA and Bonferroni correction (post hoc test) were used to compare the distribution and patch sizes of A. sylvestris and M. odorata among the study sites. We found that A. sylvestris covered at least 10% (15.5 ha) of the total area surveyed (158 ha), while M. odorata only covered ≤1 ha. Both plants were abundant near buildings, pathways, riversides, and streams, and they are expanding their distribution in Reykjavík’s green spaces. While A. sylvestris is clearly more established and widespread with larger patches (>100 m2), the distribution of M. odorata is more localized, occurring mainly in smaller patches (<100 m2). We recommend long-term monitoring to further assess M. odorata’s invasive potential, as well as testing and adopting integrated weed management strategies via adaptive management to control the distribution of A. sylvestris and that of other problematic alien plants. These actions, which are applicable to other subarctic cities, will help foster more proactive management encouraging urban biodiversity.

We demonstrate the post-compression of the GW-level femtosecond pulse in a solid-state multi-pass cell (MPC) by the pre-chirp management method. When the laser pulse is positively pre-chirped, the 200 μJ 170 fs input pulse is compressed to 163 μJ 44 fs at the output, corresponding to a transmission of 81% and a pulse shortening factor of 3.86. When the laser pulse is negatively pre-chirped, the spectral evolution, as the pulse propagates in the MPC, is characterized and, eventually, the pulse duration is compressed to 51 fs, corresponding to a pulse shortening factor of 3.3. After the driving laser goes through the pre-chirp managed MPC device, the power stability and beam quality are almost preserved. The experimental results offer a viable path toward the post-compression of high-peak-power laser pulses.

The maximum temperature that a geotechnical bentonite barrier in a deep geological repository for radioactive waste can withstand while maintaining its integrity and meeting safety requirements is still an open question. Therefore, an international consortium set up an in situ heater test (HotBENT experiment) at the Grimsel Test Site (GTS) in Switzerland at relevant scales and gradients with temperatures ranging from 175°C to 200°C at the heater/canister surface. After dismantling (5 and 20 years, respectively), the identification of bentonite alteration processes of (clay) minerals has to be based on the comparison of data with reference values determined before the heating started. The experiment was set up using ~150 tons of two different clays (Wyoming and BCV from the Czech Republic) provided in different batches. The bentonites were used both as compacted bentonite blocks and as granular bentonite material (GBM). The determination of representative mineralogical and geochemical bentonite reference values must be based on a significant number of samples taken from all parts of the experiment, which is presented here. Most of the compositional variability was close to the accuracy of the methods used. However, chemical, mineralogical and exchangeable cation analyses showed that different raw materials were used to produce the BCV top blocks. The Wyoming bentonite used is similar to MX80 bentonite in that it is dominated by Na-rich smectite, but the HotBENT material contains slightly more feldspar and zeolite and slightly less smectite. Overall, 55 samples were analysed from different parts of the experiment, providing a statistical basis for post-excavation investigations.