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Politicians’ ability to provide national security to the public is deeply enmeshed in conceptions of the state and of leadership. This article incorporates securitization, feminist, and political communication theories to consider whether gendered and militarized conceptions of national security have different effects for politicians who are women and those who are men. Although scholarship suggests that signaling military bona fides—such as invoking one’s veteran status—can help politicians claim that certain policies are a matter of national security, we consider whether this ability will be gendered. Relying on two national studies, we find results that are contrary to our original predictions. First, we find that military bona fides do help women be seen as leaders. However, we do not find evidence that bona fides increase the “authority” to identify and address national security threats for any politicians.
We show that firms’ left-tail risk positively predicts future returns of crash insurance. We proxy crash insurance with bear spreads, an option trading strategy that profits when extreme negative returns occur. Crash insurance for high (low) left-tail risk firms earns positive (negative) returns, suggesting that the downside protection it provides is not adequately priced. Our results are mainly explained by two types of underreaction: volatility underreaction in high left-tail risk portfolios and underreaction to the persistence of left-tail risk. Disagreement partially explains our results, but a risk-based approach does not.
To mark Queen Victoria's jubilee celebrations, many Indian authors composed laudatory literature and music in their vernacular languages. Although these works were often dismissed as “enthusiastic effusions” from poets of dubious ability, they offer intricate examples of the varied meanings the queen's presence had for Indian writers. They illustrate the subtle manipulation of laudatory verse for purposes other than praise; and they frequently offer instances of sophisticated, multilingual intertextuality and reuses of literary traditions of praise (and subversion) in India's precolonial past. This article examines examples of Persianate laudatory writing produced by three Parsi writers in colonial India and demonstrates how these works performed “loyalty” in contested, ambivalent ways.
In this essay, I explore two main areas of Rowan Williams’ theology of revelation. The former is his reflections on the silence of God – God’s reticence to clarify himself to us amid our theological and spiritual confusion. I argue that he is not denying that God has genuinely revealed himself to us, but rather Williams is grappling with – and exhorting us to grapple with – the limits of that revelation. The second area I explore is his theory of revelation as generative phenomena, and how his theory underwrites his understanding of church tradition and, mainly, scripture. Williams argues that there is a division within scripture between the parts containing true divine revelation and the parts containing humanity’s broken response to that revelation. I argue that this view, while it is very well formulated and has some merits, cannot surmount the epistemological obstacle of how biased and interested humans can adequately differentiate between these parts within scripture.
In contemporary healthcare, the crucial importance of disaster preparedness and response within the nursing profession has gained recognition. Considering the elevated probability of encountering numerous disasters in Türkiye, it is noteworthy that limited research has been conducted in this domain. This study, therefore, aims to investigate the related factors to nurses’ disaster preparedness Türkiye through a meta-analysis method.
Methods:
The study was conducted based on PRISMA guidelines. We searched the national databases in Türkiye and Web of Science Core Collection. Descriptive studies published in Turkish or English between 01.01.2000-31.12.2021 in Türkiye were included in the study to derive the pooled outputs.
Results:
A total of nine studies, encompassing a sample size of 3222 nurses, met the inclusion criteria. The meta-analysis’ results revealed that gender and prior experience with disasters did not exhibit a statistically significant impact on nurses’ disaster preparedness (p>0.05). Conversely, engaging in disaster education programs, familiarizing oneself with disaster plans, and actively participating in disaster drills were found to have a significant positive effect on nurses’ preparedness for disasters (p<0.05). However, it is worth noting that the analysis of disaster experience exhibited substantial heterogeneity (I2=85.6%), indicating variations among the included studies. Similarly, the analysis related to reading disaster plans also demonstrated high heterogeneity (I2=77.7%).
Conclusion:
Based on the available evidence from the meta-analysis, it can be concluded that receiving disaster education, reading disaster plans, and participating in disaster drills have a positive and significant impact on nurses’ perception of disaster preparedness.
We apply Takesaki’s and Connes’s ideas on structure analysis for type III factors to the study of links (a short term of Markov kernels) appearing in asymptotic representation theory.
In recent years, the variation in firms' tax-avoidance behavior has attracted a lot of attention, both theoretically and empirically. This study investigates the governance role of multiple large shareholders in firms' tax-avoidance behavior, using a sample of Chinese state-controlled listed firms over the period 2004–2016. We find that the ownership stake of a firm's largest shareholder is negatively associated with tax avoidance among state-controlled firms. Second, other large non-state shareholders negatively affect tax avoidance of state-controlled firms. The former effect is particularly strong when the local government is the controlling shareholder. Finally, differences in institutional quality influence the largest shareholder's tendency to engage in tax avoidance in state-controlled firms. For state-controlled firms, a better institutional environment elicits more tax avoidance and thus curtails minority-investor expropriation.
We first sequenced and characterised the complete mitochondrial genome of Toxocara apodeme, then studied the evolutionary relationship of the species within Toxocaridae. The complete mitochondrial genome was amplified using PCR with 14 specific primers. The mitogenome length was 14303 bp in size, including 12 PCGs (encoding 3,423 amino acids), 22 tRNAs, 2 rRNAs, and 2 NCRs, with 68.38% A+T contents. The mt genomes of T. apodemi had relatively compact structures with 11 intergenic spacers and 5 overlaps. Comparative analyses of the nucleotide sequences of complete mt genomes showed that T. apodemi had higher identities with T. canis than other congeners. A sliding window analysis of 12 PCGs among 5 Toxocara species indicated that nad4 had the highest sequence divergence, and cox1 was the least variable gene. Relative synonymous codon usage showed that UUG, ACU, CCU, CGU, and UCU most frequently occurred in the complete genomes of T. apodemi. The Ka/Ks ratio showed that all Toxocara mt genes were subject to purification selection. The largest genetic distance between T. apodemi and the other 4 congeneric species was found in nad2, and the smallest was found in cox2. Phylogenetic analyses based on the concatenated amino acid sequences of 12 PCGs demonstrated that T. apodemi formed a distinct branch and was always a sister taxon to other congeneric species. The present study determined the complete mt genome sequences of T. apodemi, which provide novel genetic markers for further studies of the taxonomy, population genetics, and systematics of the Toxocaridae nematodes.
The current study was motivated by an interest in deepening understanding of Brazilian twin research, which is underrepresented internationally, in an effort to rectify this situation. Our aim was threefold: (1) to carry out a comprehensive investigation of Brazilian research on twins according to the area of knowledge; (2) to evaluate the representation of research in the field of psychology in comparison with other areas; (3) to evaluate characteristics of the research that may have contributed to its exclusion from the comprehensive meta-analysis of 50 years of twin research. A scoping review was performed according to PRISMA guidelines. Titles and abstracts were searched up to 2022 in six databases: CAPES, BDLTD, PePSIC, PubMed, Google Scholar, and SciELO, using selected keywords both in Portuguese and in English (e.g., ‘twins’ and ‘Brazil’; ‘twinning’ and ‘Brazil’; ‘gemelaridade’ [twinning], and ‘gêmeos’ [twins]). Three hundred and forty publications were included in the review. Approximately half (53.8‰) used the classic twin design to investigate the heritability of several traits, and the other half (46.2%) used other research designs. The scoping review showed that the number of publications doubled approximately every 10 years. Most publications were from the health area, with medicine accounting for approximately half of the studies, followed by psychology, odontology, and biology. We found that the interest in studying twins among Brazilian scientists is increasing over the years and there are reasons to be enthusiastic about the potential impact of this trend in the global scenario.
Pavlov [Adv. Math.295 (2016), 250–270; Nonlinearity32 (2019), 2441–2466] studied the measures of maximal entropy for dynamical systems with weak versions of specification property and found the existence of intrinsic ergodicity would be influenced by the assumptions of the gap functions. Inspired by these, in this article, we study the dynamical systems with non-uniform specification property. We give some basic properties these systems have and give an assumption for the gap functions to ensure the systems have the following five properties: CO-measures are dense in invariant measures; for every non-empty compact connected subset of invariant measures, its saturated set is dense in the total space; ergodic measures are residual in invariant measures; ergodic measures are connected; and entropy-dense. In addition, we will give examples to show the assumption is optimal.
The collected essays in this “Vernacular Victoria” issue explore representations of Queen Victoria in Indian languages. They study how complex practices of loyalty to monarchical forms of authority enabled Indians to create and inhabit their diverse lifeworlds. They analyze how the uneven socialization of print and the complex cultures of literary production in colonial India shaped articulations of loyalty. “Vernacular Victoria” is about histories of Indian aspirations and negotiations, celebrations and disappointments. Victoria enables this special issue to contribute to a more global understanding of the field known as Victorian studies.
This article surveys works from Kerala related to Queen Victoria and situates M. R. Madhava Warrier's (1893–1952) biography, Victoria Maharani (1931), against the backdrop of early twentieth-century Travancore. It draws on threads related to the position of women on the Malabar coast, the actions of the maharani regent at the time, Sethu Lakshmi Bayi (r. 1924–31), and the political and social climate at the time of her reign. It also considers the relationship between the qualities of Queen Victoria praised in Victoria Maharani, reforms instituted by Sethu Lakshmi Bayi, and the reputation of both in Travancore.
In this paper, an $\textrm{H}_{{\infty }}$ dynamic output feedback controller is experimentally implemented for the position regulation of a fully actuated tilted-rotor octocopter unmanned aerial vehicle (UAV) to improve wind disturbance rejection during station-keeping. To apply the lateral forces, besides the standard tilt-to-translate (attitude-thrust) movement, tilted-rotor UAVs can generate vectored (horizontal) thrust. Vectored-thrust is high-bandwidth but saturation-constrained, while attitude-thrust generates larger forces with lower bandwidth. For the first time, this paper emphasizes the frequency-dependent allocation of weighting matrices in $\textrm{H}_{{\infty }}$ control design based on the physical capabilities of the fully actuated UAV (vectored-thrust and attitude-thrust). A dynamic model of the tilted-rotor octocopter, including aerodynamic effects and rotor dynamics, is presented to design the controller. The proposed $\textrm{H}_{{\infty }}$ controller solves the frequency-dependent actuator allocation problem by augmenting the dynamic model with weighting transfer functions. This novel frequency-dependent allocation utilizes the attitude-thrust for low-frequency disturbances and vectored-thrust for high-frequency disturbances, which exploits the maximum potential of the fully actuated UAV. Several wind tunnel experiments are conducted to validate the model and wind disturbance rejection performance, and the results are compared to the baseline PX4 Autopilot controller on both the tilted-rotor and a planar octocopter. The $\textrm{H}_{{\infty }}$controller is shown to reduce station-keeping error by up to 50% for an actuator usage 25% higher in free-flight tests.
The article explores media depictions of industrial labour in Italy, with a special focus on visual, film and television portrayals, spanning from the 1960s to the first two decades of the twenty-first century. Rather than delving into an analysis of labour processes, the primary objective of the article is to scrutinise the gendered representations of work and whether and how the representation of work, including all professions, has played a pivotal role in shaping narratives about Italian society and its inherent contradictions. In this context, the article also emphasises the significance of what remains unrepresented, highlighting the absence of work as equally consequential as its presence. Of particular importance within this exploration is the examination of women's work, a realm less frequently depicted than that of men. The article dedicates specific attention to unravelling the nuances of women's role in the workforce, recognising their portrayal as a key element in understanding broader narratives about Italian society and its complexities.
Sensed data from high-value engineering systems is being increasingly exploited to optimise their operation and maintenance. In aerospace, returning all measured data to a central repository is prohibitively expensive, often causing useful, high-value data to be discarded. The ability to detect, prioritise and return useful data on asset and in real-time is vital to move toward more sustainable maintenance activities.
We present a data-driven solution for on-line detection and prioritisation of anomalous data that is centrally processed and used to update individualised digital twins (DT) distributed onto remote machines. The DT is embodied as a convolutional neural network (CNN) optimised for real-time execution on a resource constrained gas turbine monitoring computer. The CNN generates a state prediction with uncertainty, which is used as a metric to select informative data for transfer to a remote fleet monitoring system. The received data is screened for faults before updating the weights on the CNN, which are synchronised between real and virtual asset.
Results show the successful detection of a known in-flight engine fault and the collection of data related to high novelty pre-cursor events that were previously unrecognised. We demonstrate that data related to novel operation are also identified for transfer to the fleet monitoring system, allowing model improvement by retraining. In addition to these industrial dataset results, reproducible examples are provided for a public domain NASA dataset.
The data prioritisation solution is capable of running in real-time on production-standard low-power embedded hardware and is deployed on the Rolls-Royce Pearl 15 engines.
In late nineteenth-century Telugu desa, “Victoria” was more than the name of the queen of Great Britain. It was, in Homi Bhabha's famous formulation, a “sign taken for wonder” the signification of which, however, remained ambivalent. As soon as she was proclaimed the empress of India, the queen's name acquired emblematic connotations that were exploited in both reform and counterreform discourses. Treating Queen Victoria not as a person but as a personification, the present essay reads some of the fetishized signs of the queen in the spatial, print, and literary cultures and notes how the colonial engines of modernity were appropriated, provincialized, and subverted in the domestic sphere.