How do social hierarchies affect patterns of discrimination in democratic contexts? While studies of identity politics in diverse societies often focus on relations between groups formed around parallel identities like ethnicity, these same societies often feature hierarchical identities that rank individuals into stratified groups. This paper examines how culturally embedded caste identities, inherited at birth, continue to shape everyday life. Drawing on an original survey of 2,160 Senegalese citizens, we show that caste remains a salient axis of perceived discrimination despite its formal abolition over a century ago. Individuals from occupational caste and slave-descended backgrounds are significantly more likely to report experiences of exclusion such as the denial of basic services. Most respondents attribute caste-based discrimination to cultural norms rather than economic competition, religious instruction, or biological differences. Moreover, we find that high-status individuals systematically overreport tolerant attitudes in face-to-face interviews with lower-status enumerators, suggesting that social desirability can obscure the extent of status-based attitudes. These findings shed light on the persistence of caste hierarchies and their impact on citizenship in societies otherwise considered tolerant and democratic. These findings contribute to research on identity politics by highlighting the need to distinguish between ranked and unranked forms of social difference.

Based on morphological and molecular data, we describe a new species of Diaphorocleidus parasitizing the nasal cavities of Tetragonopterus argenteus from the Lima Campos weir, municipality of Icó, state of Ceará, Brazil. Diaphorocleidus radius n. sp. resembles other congeners in the morphology of the accessory piece, all by having a bifurcated accessory piece (pincer-shaped), composed of two subunits articulated. However, the new species can be easily distinguished from all congeners by the morphology of the sclerotized structures of the haptor (ventral anchor with well-developed superficial root, ornamented deep root, recurved blade, elongated and lightning-shaped tip; and ventral bar robust, plate-shaped, truncated in lateral ends). Phylogenetic analyses of LSU rDNA and COI mtDNA sequences, conducted using Bayesian Inference and Maximum Likelihood, placed Diaphorocleidus radius n. sp. within Diaphorocleidus, grouping it with species parasitizing acestrorhamphid hosts. Genetic distances between Diaphorocleidus radius n. sp. and other congeneric species such as D. armillatus and D. forficata showed clear differentiation. Both molecular markers support the distinctiveness of Diaphorocleidus radius n. sp., consistent with its recognition as a new taxon.

This study examines how Americans conceptualize democracy and whether their support for democratic principles remains consistent across different trade-offs. Using a conjoint experiment, we test whether citizens act as principle holders—maintaining support for democratic norms regardless of circumstances—or benefit seekers who prioritize material outcomes over liberal democratic norms. Our findings reveal that while respondents generally prefer democratic principles including rule of law, political equality, and freedom of expression, these preferences are moderated by economic well-being. When presented with scenarios featuring economic disadvantage, support for traditional democratic principles declines markedly. This context dependency challenges conventional survey measures of democratic attitudes, as we observe substantial divergence between participants’ self-reported understandings of democracy and their revealed preferences when forced to navigate trade-offs. These results help to explain why campaign appeals framing democracy as “on the ballot” proved ineffective in the 2024 US presidential election, as voters facing economic hardship privileged material concerns over abstract democratic principles. Our findings contribute to debates about democratic backsliding by demonstrating that economic conditions play a crucial role in shaping citizens’ commitment to democratic governance, with implications for understanding populist mobilization and the resilience of democratic norms during periods of economic uncertainty.

One of the most significant engineering accomplishments of Maya civilization is Sacbe 1, a raised road connecting the ancient urban centers of Yaxuna and Coba. Using new lidar data in concert with excavation, epigraphic inscriptions, and landscape reconnaissance, we show that settlement and an urban experience emanated westward from Coba along the sacbe. The leaders of Coba—in particular, an ambitious seventh-century queen—used the sacbe to expand the political and cultural influence of their dynasty into the center of the peninsula while securing territory and resources. Gaps in the sacbe, precise delineation of its many curves, and examination of features near these curves call to mind several possible intentions governing its construction and use. Sites located along the causeway did not present significant barriers to the expansion of Coba. Sacbe 1 represents a uniquely urban space that expanded urban social networks into a rural hinterland while advancing state interests for territory and influence.

Judith Shklar’s negative brand of liberalism is sometimes thought to have little to say about the ethical character required of citizens in liberal democracies, beyond the injunction to avoid cruelty. In this article, however, we argue that Shklar’s negative liberalism prescribes four distinctively political virtues—rational empathy, a healthy apprehension of state power, self-restraining tolerance, and being a good loser—that, taken together, constitute an ethos of skeptical vigilance. We survey Shklar’s criticisms of republican and communitarian accounts of civic virtue to clarify her concerns about attempts by the liberal state to cultivate these virtues and analyze the case of passive injustice to highlight tensions between active citizenship and liberal values. We conclude with some reflections on how Shklar’s political theory attempts to persuade her readers of the importance of adopting and practicing an ethos of skeptical vigilance.

This article examines media discourse about commuting travel time in Australia’s two largest metropolitan areas – Sydney and Melbourne – between 1970 and 2000. In major newspapers from each of the cities, reportage and commentary conveyed expanding commuting geographies oriented towards the mass pursuit of home ownership enabled by public policy and reflective of pluralism around households’ time use preferences. In a period when time use was widely understood as increasingly pressured, the choices available to households were frequently portrayed as responding to a wide range of opportunities but co-existed with discourses of market-driven compromise and consequences.

Ocmulgee Mounds National Historical Park, located in Macon, Georgia, is one of the most iconic cultural sites in the Southeast and is a Traditional Cultural Place (TCP) of the Muscogee Nation and other federally recognized Tribal Nations. Early work (1933–1941) revealed a network of earthen monuments and other features. Prior to our work, there were only two radiocarbon dates from the primary Native American occupation of Ocmulgee. Both were run in the 1960s—and only one is from the famous Earthlodge community building. These assays contributed to a general chronological assignment of the site to AD 1015. Our new dating program—including wiggle-matched radiocarbon dates from one of the timbers of this building—indicates a later construction for the Earthlodge and likely continuous occupation for other areas of the site, calling into question beliefs about Ocmulgee and its place in interpretative constructs. This work is a collaborative effort that includes Muscogee Nation, academics, National Park Service archaeologists, and private citizens. The results have implications for understanding not only the Muskogean-speaking people’s histories and their relationship to TCPs but also how we can begin to conduct archaeology in a way that strengthens descendants’ connections to ancestral homelands.

We consider the following problem

\begin{equation*}\varepsilon^{2 s} P_{\hat{h}}^s u+u=u^p, \quad u \gt 0 \quad \text {on } \,(M, \hat{h}),\end{equation*}

$(X, g^{+})$

$(M,[\hat{h}])$

$s\in (0,1)$

$P_{\hat{h}}^s$

$1 \lt p \lt \frac{n+2s}{n-2s}$

$\varepsilon$

$C^1$

$H$

$0 \lt s \lt {1}/{2}$

$C^1$

${1}/{2}\le s \lt 1$

The fetus and neonate are especially vulnerable to toxic effects of polychlorinated biphenyls (PCBs), that have been shown to perturb behavioral and neuropsychological development. This study aimed to examine the long-term effects of developmental exposure to PCBs. Doses selected were environmentally relevant to those found in epidemiological studies, on the central nervous system (CNS) of adult rat offspring. Pregnant Sprague Dawley rats were fed cookies that contained a mixture of fourteen PCBs or vehicle (corn oil) daily. PCB doses were 0.011 mg/kg maternal body weight/day (“low”) or 1.10 mg/kg maternal body weight/day (“high”), for 42 days throughout gestation and lactation. Adult offspring were euthanized on postnatal day 450. A battery of immunohistochemical markers of brain structure and function were selected to assess possible effects of developmental PCB exposure. Using a 3×2 factorial design (treatment and sex), two-way analysis of variance revealed significant effects of treatment through the CNS, with no main effect of sex or interaction effects. In comparison with controls, both low and high dose developmental PCB exposure significantly (p < 0.05) increased inhibitory enzyme glutamic acid decarboxylase (GAD67) immunoreactivity in the cerebellar vermis, and decreased lipofuscin autofluorescence in the locus coeruleus (LC). Low dose developmental PCB exposure significantly decreased the perimeter of endothelial cells in the periaqueductal gray, ventral orbitofrontal cortex; and decreased lipofuscin in the dorsal striatum, compared to controls. Findings support the Developmental Origins of Health and Disease concept, which broadly posits that early-life perturbations may influence health trajectories over the lifespan.

The knowledge of the Social Determinants of Health (SDH) approach implies Health in All Policies and thorough cultural and social transformations, as well as whole-of-government, whole-of-society policies and governance to address health inequities. Nonetheless, this article argues that in the currently dominant rational decision-making model in health policymaking, these policy implications from the knowledge of the SDH approach would lead to an intrinsic contradiction with the logic of modern bureaucracy based on the legal authority as suggested by Max Weber. Using two examples of social determinants of health — universal health coverage and housing issues — this article demonstrates the potential of the polis model proposed by Deborah Stone to take advantage of the knowledge of the SDH approach to pursue structural policy interventions.

This methodological study investigated how the distribution of training sessions—massed, equal spacing, and expanding spacing—affects L2 phonetic learning, focusing on Mandarin-speaking learners’ perception of the English /ɛ/–/æ/ contrast. While most previous phonetic training studies have used massed schedules, the current quasi-experimental design revealed that both types of spaced practice significantly outperformed massed practice in terms of immediate gains and long-term retention. Effect sizes in the spaced groups were approximately double those of the massed group. No significant differences emerged between equal and expanding spacing. These findings suggest that distributed practice—regardless of spacing type—can enhance both the magnitude and durability of L2 phonetic learning. Crucially, this study makes it possible to revisit past findings based on massed training paradigms and to consider whether adopting alternative timing schedules could unlock greater learning potential—for instance, by doubling the size and durability of training effects through the use of spaced conditions.

Several studies have been published studying association between parental low birth weight (BW) and neonatal outcomes of their children. To date no systematic review and meta-analysis (SRM) has been published to quantify the impact of maternal and paternal BW on outcomes in the next generation. The aim of this SRM was to analyse the association between parental BW and anthropometric and metabolic outcomes in their children.

Electronic databases were searched for studies documenting BW of parents and children with neonatal outcomes. Primary outcome was to evaluate impact of parental BW on occurrence of LBW in children. Secondary outcomes were to assess impact of parental BW on occurrence of macrosomia, small for gestational age (SGA), preterm labour/delivery, and burden of non-communicable disease in later life.

We screened 54,961 articles, data from 14 studies (320,515 parent–child pairs), which fulfilled all criteria, were analysed. Maternal LBW was associated with higher chances of neonatal LBW [odds ratio (OR)1.95 (95% CI:1.56–2.46); P < 0.01; I2 = 91%], neonatal SGA [OR 2.29(95% CI:1.72–3.05); P < 0.01; I2 = 37%], lower chances of neonatal macrosomia [OR 0.50 (95% CI:0.39–0.65); P < 0.01; I2 = 35%] and had no impact on preterm labour/delivery [OR1.20(95% CI:0.67–2.16); P = 0.53; I2 = 88%]. Maternal macrosomia was associated with higher neonatal macrosomia [OR 2.66 (95% CI:2.44–3.16); P < 0.01; I2 = 48%], lower SGA [OR 0.40(95% CI:0.29–0.53); P < 0.01; I2 = 0%] and preterm labour/delivery [OR 0.77 (95% CI:0.63–0.94); P < 0.01; I2 = 4%]. Paternal but not maternal LBW was predictor of metabolic syndrome and diabetes in adulthood.

Maternal LBW is an important predictor of LBW and SGA in neonates. Maternal macrosomia is an important predictor of neonatal macrosomia; is protective against SGA and preterm labour/childbirth. Neonatal size of parents is reflected in neonatal size of their children.