Traditional regression models typically estimate parameters for a factor F by designating one level as a reference (intercept) and calculating slopes for other levels of F. While this approach often aligns with our research question(s), it limits direct comparisons between all pairs of levels within F and requires additional procedures for generating these comparisons. Moreover, Frequentist methods often rely on corrections (e.g., Bonferroni or Tukey), which can reduce statistical power and inflate uncertainty by mechanically widening confidence intervals. This paper demonstrates how Bayesian hierarchical models provide a robust framework for parameter estimation in the context of multiple comparisons. By leveraging entire posterior distributions, these models produce estimates for all pairwise comparisons without requiring post hoc adjustments. The hierarchical structure, combined with the use of priors, naturally incorporates shrinkage, pulling extreme estimates toward the overall mean. This regularization improves the stability and reliability of estimates, particularly in the presence of sparse or noisy data, and leads to more conservative comparisons. Bayesian models also offer a flexible framework for addressing heteroscedasticity by directly modeling variance structures and incorporating them into the posterior distribution. The result is a coherent approach to exploring differences between levels of F, where parameter estimates reflect the full uncertainty of the data.

Researchers’ racial and gender identities influence their outcomes in academia and the field of political science. This letter interrogates how researcher identity affects the research process: specifically elite interview recruitment. Within an ongoing research project we embed a pre-registered audit experiment randomizing the gender of the researcher conducting outreach to estimate whether there are differences in interviews scheduled holding all other confounders constant. We find that when outreach is conducted by a woman, elites are more likely to schedule an interview. This letter contributes to our understanding of bias and inequality during the research process. In addition, our study offers a new approach to audit experiments that limits deception and wasted time for elites.

We study the 2017 pension reform in Finland, raising the statutory retirement age of the studied cohorts from 63 to 63 years and 6 months. Using monthly-based register data and a differences-in-differences approach, we estimate the reform’s impact on retirement, employment, unemployment, disability, sickness, and inactivity. Results indicate a significant 19-percentage-point increase in employment between the old and new retirement ages, alongside notable rises in unemployment, inactivity, and disability. Largely – but not entirely – this stems from the persistence of the previous labor market state. Gender differences are not large, but the effects vary considerably across education, income, employment sector, and self-employment status.

We investigated the effects of maternal vitamin and mineral supplementation throughout gestation on gene expression in the jejunal mucosa of neonatal calves. Crossbred Angus heifers (n = 14) were estrus synchronized, bred to female-sexed semen, and randomly assigned to a basal diet (Control, CON; n = 7) or the basal diet plus vitamin and mineral supplement (Treatment, VTM; n = 7). After parturition, calves were removed from their dams before suckling, fed colostrum replacer, and euthanized 30 h after the first feeding. A subsample of the mucosa of the mid-jejunum was collected, and total RNA was isolated. Gene expression was measured using RNA-Seq, and differentially expressed genes (DEGs) were identified using DESeq2. We identified 528 DEGs from the jejunal mucosa between the VTM and CON calves (P ≤ 0.05 and |log2FC| ≥ 0.5). The DEGs were associated with nutrient transport, lipid metabolism, and immune-related biological processes and pathways. Interestingly, genes underlying the complement and coagulation cascades were mostly downregulated in calves born to VTM dams. On the other hand, the cytokine-cytokine receptor interaction KEGG pathway showed most genes upregulated (LIFR, KDR, TNFRSF4, TNFSF18, FLT1, and TNFRSF12A). Our results show that vitamin and mineral supplementation throughout gestation affects genes underlying tissue structure, nutrient transport and metabolism, and immune system pathways in neonates. The implications of such changes and the long-term outcomes on herd health and performance warrant further research.

Recent studies portray civil servants as potential guardians against populist attempts to undermine liberal democracy. However in polarized societies, bureaucrats, like citizens, tend to hold divergent perceptions of the threat that politicians’ actions pose to democracy. This, in turn, likely shapes bureaucrats’ responses. We examine this in the context of the attempt by Israel’s extreme right-wing populist government to curtail the powers and independence of the Israeli Supreme Court and replace legal advisors with political appointees (hereafter the “legal overhaul”). We employ a mixed-methods design, combining a survey, interviews, and a focus group with career civil servants, showing that those who perceive the legal overhaul as a threat to democracy are more inclined to exit government and less likely to voice and exert effort at work. These findings are attributed to respondents’ views of the legal overhaul as leading to future politicization, curtailed influence, and a threat to their role as civil servants.

The Autistic Spectrum, published almost 30 years ago, remains an important text for all those who work with autistic individuals. This brief article highlights the significant contribution of Lorna Wing to how we view autism, including the observation that many of the issues being highlighted today regarding the appropriate management of autistic individuals are not new and can be found in the thoughts of Dr Wing.

Multi-loop coupling mechanisms (MCMs) are extensively utilized in the aerospace and aviation industries. This paper analyzes the mobility, singularity, and optimal actuation selection of a 3RR-3RRR MCM on the basis of geometric algebra (GA), where R denotes revolute joint. First, the principle of the shortest path is employed to identify the basic limbs and ascertain the type of coupling limbs. The analytical expression for the twist space and mobility characteristics of the mechanism is obtained by calculating the intersection of the limb’s twist space. The blade of limb constraint is subsequently employed to construct the singular polynomials of the mechanism. The singular configurations of the 3RR-3RRR MCM are analyzed in accordance with the properties of the outer product, resulting in the identification of two distinct types of boundary singularities. Next, the local transmission index is employed to evaluate the motion/force transmission performance of the two actuation schemes and finalize the selection of the superior actuation scheme for the mechanism. Finally, a prototype is developed to evaluate the energy loss resulting from the two actuation schemes, which verifies the correctness of the actuation selection scheme.

The first year of university is a developmentally significant transition that involves substantial stressor exposure and, for some, heightened anxiety. Parenting may influence the association between stressor exposure and anxiety symptoms, with some research showing that parental care and overprotection throughout childhood and adolescence are associated with the experience of anxiety. However, how these factors interact and relate to anxiety symptoms in early adulthood is not clear. To address this issue, we examined interactions between parenting characteristics (care and overprotection) and stressors experienced during the transition to university, and how they relate to anxiety symptoms in 240 first-year undergraduates (Mage = 18.2, SD = 1.18, 75% female, 51.7% White). Results revealed a significant interaction between parental overprotection and stressor exposure, such that higher parental overprotection and higher levels of recent stressor exposure were associated with more anxiety symptoms (β = 0.52, p = .008). These findings demonstrate continued evidence for associations between experiences of parenting and psychopathology in emerging adulthood and suggest that overprotective parenting behaviors may exacerbate effects of stress exposure.

Building on the experience of Russian antiwar emigration in 2022, this article reinterprets the categories of “exit” and “voice” to better understand dissent under repressive political regimes. It argues that exit can function as a form of voice in contexts where other forms of voicing discontent are effectively eliminated by repression. This perspective on exit opens the category of voice to a normative conceptualization, defining it as an expression of civic identity. Acting on this identity in response to Russia’s war on Ukraine leads dissenting citizens either into self-imposed exile or inner exile. The article identifies three key modalities of voice available to dissenting citizens: exit-as-voice, voice-after-exit, and oblique voice. In all these modalities, voice is primarily performative, shaped by the political and ethical constraints that emerge from the interplay between repression and resistance. The article draws on an autoethnography of exit within Russian academia and on accounts of resistance both inside and outside Russia.

We prove that a solution to the 3D Navier–Stokes or magneto-hydrodynamics equations does not blow up at t = T provided $\displaystyle \limsup_{q \to \infty} \int_{\mathcal{T}_q}^T \|\Delta_q(\nabla \times u)\|_\infty \, dt$ is small enough, where u is the velocity, $\Delta_q$ is the Littlewood–Paley projection and $\mathcal T_q$ is a certain sequence such that $\mathcal T_q \to T$ as $q \to \infty$. This improves many existing regularity criteria.

We study a specific practice of predatory lending: Borrowers being rejected and approved in rapid succession by the same lender. We show that in such cases borrower and contract characteristics and ex post performance are consistent with predatory steering. Steered borrowers are associated with groups with lower financial sophistication. They are more likely to enter non-amortizing contracts with high profit margins that are quickly securitized. Steered borrowers default less in boom years when refinancing is easy. However, their performance deteriorates sharply once falling prices trap them in contracts with rising payments, reflecting the long-term costs of predatory lending.