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This article analyses the prison industries and state industrial exhibitions of three Indian princely states in the late nineteenth and early twentieth centuries, tracing how princely elites sought to develop distinct labouring and industrial cultures. Drawing on examples from three Muslim-led princely states, namely Rampur, Bhopal, and Hyderabad, the article argues that state elites distinguished their forms of cultural and religious authority from that of the British Raj by coercing and displaying new industrial practices. They aimed to cultivate an industrial modernity that could compete with colonial projects while also promoting what they characterised as Indian Muslim characteristics and courtly traditions for artisan labourers and their work. The article asks how princely elites worked to conscript their subjects—including marginalised subjects such as convict labourers—into visions of regional industrial authority. Princely visions of Muslim and courtly industrial futures in Rampur, Bhopal, and Hyderabad were rooted in the attempts of state administrators to fashion distinctive regional identities and assert authority in a context of circumscribed, quasi-colonial rulership. Industrial cultures associated with princely prisons and exhibitions ultimately exceeded the bounds of these projects, placing pressure on other state subjects to adopt new material practices and engage with state-defined regional craft traditions.
Obstructive sleep apnea (OSA) is associated with worse outcomes in stroke, Alzheimer’s disease (AD) and Parkinson’s disease (PD), but diagnosis is challenging in these groups. We aimed to compare the prevalence of high risk of OSA based on commonly used questionnaires and self-reported OSA diagnosis: 1. within groups with stroke, AD, PD and the general population (GP); 2. Between neurological groups and GP.
Methods:
Individuals with stroke, PD and AD were identified in the Canadian Longitudinal Study of Aging (CLSA) by survey. STOP, STOP-BAG, STOP-B28 and GOAL screening tools and OSA self-report were compared by the Chi-squared test. Logistic regression was used to compare high risk/self-report of OSA, in neurological conditions vs. GP, adjusted for confounders.
Results:
We studied 30,097 participants with mean age of 62.3 years (SD 10.3) (stroke n = 1791; PD n = 175; AD n = 125). In all groups, a positive GOAL was the most prevalent, while positive STOP was least prevalent among questionnaires. Significant variations in high-risk OSA were observed between different questionnaires across all groups. Under 1.5% of individuals self-reported OSA. While all questionnaires suggested a higher prevalence of OSA in stroke than the GP, for PD and AD, there was heterogeneity depending on questionnaire.
Conclusions:
The wide range of prevalences of high risk of OSA resulting from commonly used screening tools underscores the importance of validating them in older adults with neurological disorders. OSA was self-reported in disproportionately small numbers across groups, suggesting that OSA is underdiagnosed in older adults or underreported by patients, which is concerning given its increasingly recognized impact on brain health.
Impedance spectroscopy is widely adopted for probing the charge and charge mobility of soft ion-conducting media, such as synthetic membranes and biological tissue. The spectra exhibit a variety of distinctive signatures, but the physical basis of these is not well understood, e.g. models have not previously accounted for viscoelasticity, hydrodynamics or microstructural heterogeneity. This study explores a physically grounded continuum model that captures how these factors shape conductivity spectra. Nonlinear thermodynamics and linearised dynamics of a viscous electrolyte and compressible, elastic polymer network are coupled under the forcing of an oscillatory electric field. The model is solved in a one-dimensional spatially periodic unit cell, reporting conductivity and dielectric permittivity spectra, including Nyquist representations. Whereas rigid microstructures exhibit ion-diffusion-controlled relaxation, which manifests as a low-frequency dielectric ‘constant’, hydrodynamic and elastic forces contribute to a strongly diverging dielectric permittivity at low frequencies for heterogeneous anionic microstructures. The model also captures distinctive characteristics of experimentally reported impedance spectra for films bearing alternating layers of cationic and anionic charge, again highlighting the role of coupled hydrodynamic, elastic and electrical forces. Sufficiently thin and highly charged bilayers exhibit a notably low high-frequency conductivity. This is explained by strong low-frequency electrostatic polarisation and counter-ion release. The one-dimensional solutions computed herein provide a foundation for much more challenging computations in two and three dimensions.
Droplet spreading is ubiquitous and plays a significant role in liquid-based energy systems, thermal management devices and microfluidics. While the spreading of non-volatile droplets is quantitatively understood, the spreading and flow transition in volatile droplets remains elusive due to the complexity added by interfacial phase change and non-equilibrium thermal transport. Here we show, using both mathematical modelling and experiments, that the wetting dynamics of volatile droplets can be scaled by the spatial–temporal interplay between capillary, evaporation and thermal Marangoni effects. We elucidate and quantify these complex interactions using phase diagrams based on systematic theoretical and experimental investigations. A spreading law of evaporative droplets is derived by extending Tanner's law (valid for non-volatile liquids) to a full range of liquids with saturation vapour pressure spanning from $10^1$ to $10^4$ Pa and on substrates with thermal conductivity from $10^{-1}$ to $10^3\ {\rm W}\ {\rm m}^{-1}\ {\rm K}^{-1}$. In addition to its importance in fluid-based industries, the conclusions also enable a unifying explanation to a series of individual works including the criterion of flow reversal and the state of dynamic wetting, making it possible to control liquid transport in diverse application scenarios.
Operative cancellations adversely affect patient health and impose resource strain on the healthcare system. Here, our objective was to describe neurosurgical cancellations at five Canadian academic institutions.
Methods:
The Canadian Neurosurgery Research Collaborative performed a retrospective cohort study capturing neurosurgical procedure cancellation data at five Canadian academic centres, during the period between January 1, 2014 and December 31, 2018. Demographics, procedure type, reason for cancellation, admission status and case acuity were collected. Cancellation rates were compared on the basis of demographic data, procedural data and between centres.
Results:
Overall, 7,734 cancellations were captured across five sites. Mean age of the aggregate cohort was 57.1 ± 17.2 years. The overall procedure cancellation rate was 18.2%. The five-year neurosurgical operative cancellation rate differed between Centre 1 and 2 (Centre 1: 25.9%; Centre 2: 13.0%, p = 0.008). Female patients less frequently experienced procedural cancellation. Elective, outpatient and spine procedures were more often cancelled. Reasons for cancellation included surgeon-related factors (28.2%), cancellation for a higher acuity case (23.9%), patient condition (17.2%), other factors (17.0%), resource availability (7.0%), operating room running late (6.4%) and anaesthesia-related (0.3%). When clustered, the reason for cancellation was patient-related in 17.2%, staffing-related in 28.5% and operational or resource-related in 54.3% of cases.
Conclusions:
Neurosurgical operative cancellations were common and most often related to operational or resource-related factors. Elective, outpatient and spine procedures were more often cancelled. These findings highlight areas for optimizing efficiency and targeted quality improvement initiatives.
The reward positivity (RewP) is an event-related potential that indexes reinforcement learning and reward system activation. The RewP has been shown to increase across adolescence; however, most studies have examined the RewP across two assessments, and no studies have examined within-person changes across adolescence into young adulthood. Moreover, the RewP has been identified as a neurobiological risk factor for adolescent-onset depression, but it is unclear whether childhood psychosocial risk factors might predict RewP development across adolescence. In a sample of 317 8- to 14-year-old girls (Mage = 12.4, SD = 1.8), the present study examined self-report measures of depression symptoms and stressful life events at baseline and the ΔRewP during the doors guessing task across three timepoints. Growth modeling indicated that, across all participants, the ΔRewP did not demonstrate linear change across adolescence. However, baseline anhedonia symptoms predicted within-person changes in the ΔRewP, such that individuals with low anhedonia symptoms demonstrated a linear increase in the ΔRewP, but individuals with high anhedonia symptoms had no change in the ΔRewP across adolescence. Similar patterns were observed for stressful life events. The present study suggests that childhood risk factors impact the development of reward-related brain activity, which might subsequently increase risk for psychopathology.
This paper is inspired by a class of infinite order differential operators arising in quantum mechanics. They turned out to be an important tool in the investigation of evolution of superoscillations with respect to quantum fields equations. Infinite order differential operators act naturally on spaces of holomorphic functions or on hyperfunctions. Recently, infinite order differential operators have been considered and characterized on the spaces of entire monogenic functions, i.e. functions that are in the kernel of the Dirac operators. The focus of this paper is the characterization of infinite order differential operators that act continuously on a different class of hyperholomorphic functions, called slice hyperholomorphic functions with values in a Clifford algebra or also slice monogenic functions. This function theory has a very reach associated spectral theory and both the function theory and the operator theory in this setting are subjected to intensive investigations. Here we introduce the concept of proximate order and establish some fundamental properties of entire slice monogenic functions that are crucial for the characterization of infinite order differential operators acting on entire slice monogenic functions.
Our paper sheds light on Sanitary and Phytosanitary (SPS) cooperation among trading countries. We contribute to the existing literature a data-driven analysis on the effectiveness of various forms (in monetary value, duration, and diversification) of SPS related technical assistance received by 33 countries from 1993 to 2015. The World Trade Organization's (WTO's) SPS Agreement encourages biosecurity for countries through technical assistance, to safeguard human health and productivity from contamination by biological hazards (pests, pathogens, or invasive species). Our panel model finds that WTO's SPS program encourages simultaneously agricultural trade and biosecurity. We implement a Multiple Indicator Solution (MIS) to correct bias from the endogenous technical assistance. The effectiveness of technical assistance depends on geography and the level of development among the heterogeneous countries referred to in our data. This investment in biosecurity benefits both donors and recipients of technical assistance. Based on our results donors should be encouraged to invest in countries with below average resources and abilities.
Used by politicians, journalists, and citizens, Twitter has been the most important social media platform to investigate political phenomena such as hate speech, polarization, or terrorism for over a decade. A high proportion of Twitter studies of emotionally charged or controversial content limit their ability to replicate findings due to incomplete Twitter-related replication data and the inability to recrawl their datasets entirely. This paper shows that these Twitter studies and their findings are considerably affected by nonrandom tweet mortality and data access restrictions imposed by the platform. While sensitive datasets suffer a notably higher removal rate than nonsensitive datasets, attempting to replicate key findings of Kim’s (2023, Political Science Research and Methods 11, 673–695) influential study on the content of violent tweets leads to significantly different results. The results highlight that access to complete replication data is particularly important in light of dynamically changing social media research conditions. Thus, the study raises concerns and potential solutions about the broader implications of nonrandom tweet mortality for future social media research on Twitter and similar platforms.
A theoretical analysis is presented of peristaltic pumping down a narrow conduit with permeable walls, motivated by the flushing action of lugworms and other marine organisms in sandy burrows. Flow in the conduit is dealt with using lubrication theory; the leakage into the surrounding medium is taken into account by exploiting slender-body theory to solve the associated Darcy problem. By adopting a model for the local force balance on the pumping surface, we bridge between the limits in which the pump operates with either fixed load or displacement. In the latter limit we characterize peristaltic waves with either fixed form or ones that partially collapse the conduit. We construct pump characteristics (the relation between the mean flux and net pressure drop) when the burrow wall is impermeable and pressures are fixed at each end, and compare the results with existing laboratory experiments performed on lugworms. We then consider how the peristaltic dynamics is changed when the wall is made permeable. Last, we consider pumping along an impermeable burrow into a leaky head shaft. The results reveal that the permeability of the conduit wall or end can greatly impact the direction and strength of the recirculating flow.
A new genus and species of arachnid (Chelicerata: Arachnida), Douglassarachne acanthopoda n. gen. n. sp., is described from the late Carboniferous (Moscovian) Coal Measures of the Mazon Creek Lagerstätte, Illinois, USA. This is a unique animal with distinctive large spines on the legs. It has a subovate body, a segmented opisthosoma, and a terminal anal tubercle. The legs are robust and appear to have been similar in construction throughout the limb series, with heavy spination of the preserved proximal podomeres. The mouthparts and coxo-sternal region are equivocal. The preserved character combination does not permit easy referral to any known arachnid order, living or extinct, thus the new fossil in placed as Arachnida/Pantetrapulmonata incertae sedis. It contributes to an emerging pattern of disparate body plans among late Carboniferous arachnids, ranging from anatomically modern members of living orders through to extinct taxa, such as the present fossil, whose phylogenetic position remains unresolved.
In its 75th ordinary session, the African Commission on Human and Peoples’ Rights (ACHPR, or Commission), the human rights organ of the African Union, with a mandate to promote and protect human and peoples’ rights and interpret the African Charter on Human and Peoples’ Rights, unanimously adopted the African Guiding Principles on the Human Rights of Migrants, Refugees and Asylum Seekers (Guiding Principles). They were publicly launched by the Commission at its 77th ordinary session on October 21, 2023. The drafting was led by the Commission's Special Rapporteur on Refugees, Asylum Seekers, Internally Displaced Persons, and Migrants in Africa. The thirty-eight Guiding Principles are based largely on African regional treaty law, case law, standards, and resolutions of the Commission and also draw from complementary international law. In addition, the Guiding Principles draw from the experience of other world regions, including adoption by the Inter-American Commission on Human Rights (the human rights organ of the Organization for American States) of the 2019 Inter-American Principles on the Human Rights of All Migrants, Refugees, Stateless Persons, and Victims of Human Trafficking.
The apocalypse is frequently deployed by political movements, especially contemporary climate activists, to advance their causes. This article develops a framework for defending such invocations of the end of the world. With many other political theorists, I suggest that the apocalypse is a dangerous concept, not least because of its association with authoritarian accounts of history. However, we should not reject the apocalypse. I argue for a form of anti-anti-apocalypticism, using the criticisms directed against the concept as a launchpad to rethink it in viable terms. While acknowledging the value of different ways of defending the apocalypse, I highlight the importance of the causes of apocalyptic movements. Simply put, apocalypses from below are defensible because they have the capacity to clarify the political position of the oppressed and open new political possibilities for the group. By contrast, apocalypses from above, because they fail to fulfill these functions, are not.
In this article, I argue that because co-nationals have an intrinsically valuable relationship, they have a presumptive claim against interference in their collective affairs. My argument from the claim that co-nationals have an intrinsically valuable relationship to the presumptive claim against interference is threefold, and I set it out in section “From Intrinsic Value to Self-Determination”: firstly, parties to an intrinsically valuable relationship have a respect-based claim to autonomy. Secondly, the relationship between co-nationals realizes some important goods, and collective autonomy is internally related to these. Finally, the fact that co-nationals have an intrinsically valuable relationship, and affective attachments means that they have a strong interest in carrying out certain activities together, without interference from outsiders. In section “Grounding the Presumptive Claim,” I argue that these three grounds cumulatively amount to a presumptive claim to collective autonomy. I outline the implications for the issue of secession.
A new species of congrid eel genus, Ariosoma is described here based on two mature female specimens collected from trawl by-catch landings at Thoothukudi fishing harbour, off Thoothukudi, Bay of Bengal. The new species can be easily distinguished from its congeners in having pre-anal length 48.7–49.1% TL; dorsal-fin origin just before pectoral-fin insertion; body bicoloured, pale brown dorsally and silvery white ventrally; preopercular portion dark; pectoral fin reddish with dark spot at the base; SO canal with six pores; pre-dorsal vertebrae 10–11; pre-anal vertebrae 61–64; total vertebrae 162–163. Further, the new species differs from all the congeners of Indian waters in having more total vertebrae, except A. albimaculatum (162–163 vs 129–153 in others; 161–164 in A. albimaculatum). The new species identity was also supported by molecular analyses using the mitochondrial COI gene and the result revealed that the new species is closely related to Ariosoma maurostigma and Ariosoma albimaculatum with a pair-wise genetic distance of 11.4% and 11.6% followed by A. melanospilos with 16.8%.
In our paper testing the Cutler–Hawkins hypothesis that suffixes are easier to process than prefixes (Harris & Samuel 2025), we report little experimental support for the hypothesis. Several sources treat clitics as being similar to affixes (e.g. Himmelmann 2014, Asao 2015), and some argue that there is a parallel preference for enclitics over proclitics (Cysouw 2005, Dryer 2017). On this basis, we test an extension of the Cutler–Hawkins hypothesis to clitics because if true, that too could explain the suffixing preference (as well as the putative enclitic preference). Cutler et al. (1985) also state a hypothesis about the processing of infixes. Udi provides an excellent language for testing both hypotheses, since each person clitic in this language can occur before the verb, after the verb, between morphemes of the verb or inside the verbal root, under certain circumstances (Harris 2002). Although European Portuguese does not place clitics inside roots, it utilizes the other three placements. We have conducted three experiments on each language. The results demonstrate that an explanation for either the suffixing preference or the putative enclitic preference is unlikely to be grounded in the processing factors suggested by Cutler & Hawkins.