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Aortopulmonary window is an uncommon CHD that often coexists with additional cardiovascular anomalies. Criss-cross heart, defined by rotation of the ventricular mass with crossed atrioventricular inflow streams, is exceedingly rare. The coexistence of aortopulmonary window and criss-cross heart is exceptional and markedly increases diagnostic and therapeutic complexity.
Case summary:
We report a full-term neonate with prenatal suspicion of aortopulmonary window. Postnatal echocardiography and CT demonstrated situs solitus, concordant atrioventricular and ventriculoarterial connections, rotational malalignment of the ventricles consistent with criss-cross heart, an inferior sinus venosus atrial septal defect, and a large type III aortopulmonary window. There was marked right-sided dilation and evolving right ventricular dysfunction, although no interrupted aortic arch was identified. At 17 days of life, the patient underwent early surgical repair with reconstruction of the aortic pathway. Despite anatomically successful correction, the immediate postoperative course was complicated by severe ventricular dysfunction and refractory low cardiac output syndrome, requiring venoarterial extracorporeal membrane oxygenation for haemodynamic stabilisation. Extracorporeal membrane oxygenation was discontinued on day nine, and follow-up imaging showed preserved biventricular systolic function and no residual aortopulmonary window.
Conclusion:
This case illustrates an exceptionally rare association between aortopulmonary window and criss-cross heart, underscoring the value of prenatal detection and detailed postnatal imaging to delineate complex anatomical relationships. Early surgical intervention was mandatory, and the need for extracorporeal membrane oxygenation highlights the high intrinsic risk of this anatomical combination. Reporting such cases expands the limited literature on rare congenital cardiac malformations and may inform future refinements in diagnostic evaluation and perioperative management.
Some philosophers argue that pragmatist accounts of causation require accepting perspectivalism—the view that causation depends on an agent’s perspective. This paper critically evaluates this inference by examining Price’s arguments for perspectivalism and against Woodward’s view. I demonstrate that Price’s positive argument rests on an unacceptable premise, and drawing on Woodward’s work, I propose a pragmatist realist view of causation that survives Price’s criticisms. This pragmatist realism identifies causes through human concerns and practices, but treats the causal relation as objective and independent of agential perspectives. The paper concludes by showing Ismael’s perspectivalist view is consistent with pragmatist realism.
This paper presents the design of a nonlinear adaptive flight control system for the Cessna Citation X longitudinal dynamics. The aircraft pitch rate is controlled using a combination of recursive least squares-based nonlinear dynamic inversion and an adaptive neural network controller. The recursive least squares algorithm provides online parameter estimates to support the inversion, while the neural network compensates for residual modeling errors through online weight adaptation. To enhance robustness and ensure stability, a fixed-gain proportional integral derivative controller is integrated into the control structure. Unlike conventional gain-scheduled controllers, where PID gains vary with flight condition, the proposed adaptive controller uses a single baseline set of fixed gains. The adaptive component updates the control action online, enabling the same controller configuration to operate effectively across all 64 cruise conditions without any gain scheduling. A systematic tuning methodology is introduced for initialising the recursive least squares, selecting forgetting factors and applying covariance resets to ensure accurate adaptation. The controller is able to track a pitch-rate reference model that satisfies longitudinal flight quality requirements. Robustness is assessed under realistic disturbances, including wind gusts, Dryden turbulence, actuator loss-of-effectiveness and actuator noise. Simulation results demonstrate that the controller achieves precise reference tracking while maintaining Level 1 flight qualities. Stability is formally guaranteed using Lyapunov-based analysis. The findings highlight the ability of the designed hybrid adaptive controller to overcome limitations of linearisation, gain scheduling and estimator sensitivity, forecasting a practical and certifiable method for the integration of intelligent adaptive flight control systems into commercial aircraft.
We conducted a single-center prospective cohort study in Ontario, Canada, to assess concomitant pulmonary embolism (PE) in hyperacute stroke. Stroke CT angiography was modified to start at the diaphragm in order to include the chest. Primary outcome of PE was reported by cardiothoracic/chest radiologists. 12/208 stroke patients had an acute PE (5.8%), all of which were clinically asymptomatic, despite imaging in some showing right-heart strain. None had cancer and only half had a patent foramen ovale. Patients with PE tended to have more severe stroke, large vessel occlusion and worse outcomes. The implications and management of these findings require further exploration.
The rapid evolution of artificial intelligence (AI) has profoundly reconfigured the contemporary workplace, redefining the interactions among human employees, AI systems, and organizational processes. Yet, most research adopts a tool-centric view, overlooking how AI’s emergence as an alternative working agent reshapes managerial attention and employee welfare. Drawing on the attention-based view (ABV) and a dual-agent model, we theorize that AI adoption activates two opposing mechanisms: a human attention gain mechanism, where collaboration needs heightened focus on employees and increased employee-related corporate social responsibility (ECSR), and an AI attention shift mechanism, where deep AI embedding redirects attention toward AI, suppressing ECSR. Using panel data from 2575 Chinese listed firms (2013–2023), we find an inverted U-shaped relationship between AI adoption and ECSR. Moreover, industry AI substitution risk sharpens and left-shifts this curve, while top management team (TMT) functional diversity and employee stock ownership flattens and right-shifts it. These findings advance research on AI adoption, managerial attention, and employee-focused CSR by illuminating how attention allocation in dual-agent contexts shapes ethical and strategic outcomes, offering actionable insights for balancing human–AI integration with sustained employee welfare.
The current work analyses the onset characteristics of buoyancy and thermocapillary-driven instabilities in two-layer binary fluid systems near their upper critical solution temperature (UCST). To account for the non-trivial thickness of the fluids’ interface and the temperature-dependent solubility in such regimes, the present analysis utilises the phase-field approach with a modified free-energy expression. The spatial discretisation of the field variables is carried out here using the spectral collocation approach with a suitable grid mapping strategy to accurately evaluate the field gradients around the diffuse-interface region. The results reveal that in the case of pure buoyancy-driven (Rayleigh–Bénard) convection, the parametric range for oscillatory onset is found to shrink when the system approaches the UCST, as the increased solubility results in less favourable conditions for oscillatory onset. The marginal stability curves of different fluid combinations considered here exhibit unique drift patterns based on their thermo-physical and transport properties. For systems with added thermocapillarity effects (Rayleigh–Bénard–Marangoni convection), the changing solubilities and the interfacial thickness, like the interfacial tension, exhibit a dual role that results in system-specific expansion/shrinkage of the parametric space for oscillatory flow onset.
Evaluation of genotypes is essential for assessing yield stability in organic farming, helping identify suitable cultivars for Punjab’s growers. This is particularly important given the harmful effects of intensive chemical use on soil and water quality, which drives the shift toward organic practices. Unlike conventional methods, organic farming relies on sustainable approaches such as crop rotation, green manure and bio-pesticides to promote agroecosystem health. The experiment was conducted during the Kharif seasons of 2020 and 2021 in a randomised complete block design at the Research Farm of the Punjab Agricultural University, Ludhiana, Punjab. Ten Basmati varieties, including Punjab Basmati 5, Punjab Basmati 4, Punjab Basmati 3, Punjab Basmati 2, Basmati 386, Basmati 370, CSR 30, Pusa Basmati 1121, Pusa Basmati 1509 and Pusa Basmati 1718, were assessed for the various yield-attributing parameters, such as effective tillers, number of grains per panicle, 1000-grain weight, grain yield, straw yield and total biomass. Pusa Basmati 1509 produced the highest grain yield (3.6 tonnes/ha), biomass yield (6.7 tonnes/ha) and harvest index (35.2 %) among all varieties followed by Punjab Basmati 4 and Pusa Basmati 1718. Net returns (INR 122,000 per ha) and benefit-cost ratio (B:C) (2.09) were the highest in Pusa Basmati 1121 because this cultivar fetches higher price in the market due to its superior aroma and cooking quality. The future research could delve into the organic cultivation practices specifically developed for these cultivars, contributing to the development of sustainable and resilient agriculture system in the region.
I present a new ontological argument that rests on two evaluative theses, both inspired by Anselm’s Proslogion 2. First, for any F and Q, it is no better for there to be an F, given Q, than it is for there to be something perfect. Second, it is better for there to be something perfect if there is such a thing than if there isn’t. It follows that there is something perfect. I examine these premises, consider some parodies, and suggest possible atheistic replies.
We revisit evaluation of logical formulas that allow both uninterpreted relations, constrained to be finite, as well as an interpreted vocabulary over an infinite domain. This formalism was denoted embedded finite model theory in the past. It is clear that the expressiveness and evaluating complexity of formulas of this type depend heavily on the infinite structure. If we embed in a wild structure like the integers with additive and multiplicative arithmetic, logic is extremely expressive and formulas are impossible to evaluate. On the other hand, for some well-known decidable structures, the expressiveness and evaluating complexity are similar to the situation without the additional infrastructure. The latter phenomenon was formalized via the notion of “Restricted Quantifier Collapse”: adding quantification over the infinite structure does not add expressiveness. Beyond these two extremes little was known. In this work we show that the possibilities for expressiveness and complexity are much wider. We show that we can get almost any possible complexity of evaluation while staying within a decidable structure. We also show that in some decidable structures, there is a disconnect between expressiveness of the logic and complexity, in that we cannot eliminate quantification over the structure, but this is not due to an ability to embed complex relational computation in the logic. We show failure of collapse for the theory of finite fields and the related theory of pseudo-finite fields, which will involve coding computation in the logic. As a by-product of this, we establish the first lower bounds for the complexity of decision procedures for several decidable theories of fields, including the theory of finite fields. This article includes material in the extended abstract “Embedded Finite Models: Beyond Restricted Quantifier Collapse,” that appeared in the Logic in Computer Science conference (LICS ’23).
Assessing the physical integrity of archaeological sites is vital for heritage conservation management. Using the example of Arslantepe, a prehistoric tell site in south-eastern Türkiye, this article demonstrates the application of RUSLE modelling to estimate surface erosion vulnerability, employing ultra-high-resolution photogrammetry and a field-based geoarchaeological framework. The results reveal contained erosion across the site with localised degradation limited to steep trench walls and spoil heaps, indicating remarkably good site conservation and consolidating the effectiveness of RUSLE modelling as a scalable method for evaluating surface processes and informing conservation strategies on individual archaeological sites.
In three-dimensional (3D) through-the-wall radar imaging, unknown wall parameters such as thickness and relative permittivity distort electromagnetic wave propagation, causing image defocusing and target displacement. Autofocusing is therefore essential, but conventional methods are computationally demanding due to two-dimensional (2D) searches over wall parameters and repeated reconstruction of full 3D images. To address this challenge efficiently, a slice-based 3D imaging strategy is adopted. Radar data are acquired along a linear aperture parallel to the wall at multiple heights. For each height, the collected measurements form a B-scan dataset, which is processed independently to reconstruct a 2D image slice. A computationally efficient two-step framework is proposed. First, the wall’s relative permittivity is estimated from the time-domain response of the B-scan at a selected height, and autofocusing is performed by varying only the wall thickness, reducing the conventional 2D search to a one-dimensional problem. Second, focused 2D image slices are reconstructed at all heights. The final 3D image of the concealed targets is obtained by superimposing these slices into a volumetric representation. The experimental results demonstrate that the proposed technique yields well-focused images while significantly reducing the computational cost.
Transnational cultural encounters between Africa and China, such as Chinese artist Pu Yingwei’s exploration of Kenya’s dam infrastructure and the reception of French-Senegalese director Mati Diop’s film Dahomey on African artifact repatriation among Chinese youth, generate new sites of knowledge circulation and epistemic inquiry. These exchanges exemplify an approach of “reflexivity,” which emphasizes critical reflection on one’s own positionality, research processes, and the broader conditions shaping knowledge production. Oriented toward mutual reference and epistemic affinity between Asia and Africa, this approach promotes a relational mode of knowledge-making attentive to both shared historical legacies and existing structural disparities.
Subjective cognitive complaints (SCC) can precede cognitive decline and are associated with demographic, exposure, lifestyle, and psychological factors. Prevalences of SCC and their correlates in individuals with repetitive head impacts (RHI) are poorly understood. This study characterized SCC in former elite American football players by frequency, mood and behavioral correlates, concordance with informant reports, and associations with neuropsychological test performance, cerebrospinal fluid (CSF), and magnetic resonance imaging (MRI) markers of neurodegeneration.
Method:
Former American football players (n = 180) completed measures of global and domain-specific SCC, neuropsychiatric symptom questionnaires, neuropsychological testing, lumbar puncture, and MRI. Elastic net regression evaluated the relative importance of potential SCC correlates. Intraclass correlation coefficients measured concordance between self and informant reports. Multiple linear regressions tested associations between SCC and verbal memory and executive functioning scores. CSF Aβ1-42, p-tau181, t-tau, neurofilament light (NfL), hippocampal volume, and regional cortical thickness were examined for their potential associations with SCC.
Results:
Rates of SCC ranged from 43 to 77% depending on the domain. Symptoms of depression, impulsivity, and anxiety were strongly associated with SCC. Self- and informant-reported SCC showed moderate inter-rater agreement. Adjusting for age, race, education, APOE ϵ4 carrier status, and depressive symptoms, SCC were associated with lower objective verbal memory and executive functioning performance. SCC were associated with lower parahippocampal cortical thickness but not with hippocampal volume or any of the measured CSF tests.
Conclusions:
SCC are strongly associated with neuropsychiatric factors in former American football players. SCC may also be a marker of cognitive decline and neurodegeneration.
In this paper, a passive, chipless ${2 \times 2}$ RFID tag array designed on a thin polyimide substrate is proposed for a wearable application. The radiating element comprises a star-shaped multi-ring structure enclosed in a square folded split ring. Requirement of compactness in wearables gives rise to electromagnetic interference (EMI) due to close coupling between the tag elements, which deteriorates the performance of the RFID system and requires mitigation of the EMI. In the present work, the coupling is analyzed extensively for two separate cases: when all array elements are of the same size and when they are of two different sizes, to investigate both inbound and outbound EMI scenarios. The orientation of each tag element with specific configuration is examined to achieve minimum coupling and to gain a larger read range, an important parameter in the design of passive RFID tags. Furthermore, specific absorption rate analysis confirms the safety and suitability of the design for on-body applications. The prototype model of the proposed configuration is developed, measured, and compared with the simulation results. A good agreement between the simulation and measured results confirms its suitability for compact wearable applications.
Members of the majority party in Congress sometimes vote against bills that they prefer over the status quo. We estimate a model of congressional roll-call voting that allows for this kind of non-ideological protest voting. We find that protest voting has significant implications for roll-call-based estimates of ideology and other analyses that rely upon them. For example, a traditional item response theory model curiously identifies members of the Squad as relatively moderate Democrats, but our protest-voting-adjusted scores identify them as the most liberal members of Congress. We also find that previous studies may have underestimated responsiveness, the effects of ideology in elections, the utility of non-roll-call-based measures of ideology, and the increase in congressional polarization. Although the implications for most substantive applications are likely modest, our analyses suggest that future researchers can better measure legislative ideology by accounting for a small number of non-ideological votes.
NEURAL MATERIALS (2024) is a live AV show created by SONAMB (Vicky Clarke). The project represents a collaboration between Vicky Clarke, visual artist Sean Clarke, and industry partner Bela, a company specialising in hardware with interactive sensors for music-making. The AV show utilises a new performance system incorporating a hybrid set-up in combination with both a sound sculpture and the output of a machine learning model trained on a ‘post-industrial’ sonic dataset. The dataset renders in sound Manchester’s industrial past and present through field recordings of cotton mills, the canal network and the electromagnetic resonances of a newly gentrified city centre. This article analyses NEURAL MATERIALS as musical composition, live AV show and a demonstration of creative audio-generative AI, linking the work to scholarly and compositional legacies of Sonic Materialism and musique concrète. By combining documentation analysis and performance analysis, I interrogate how sound’s indexical properties are transformed via machine learning (ML) processes, questioning whether machines are able to evoke a sense of space or heritage. Ultimately, I contend that such audio-generative systems have the capacity to reshape our perception of industrial histories, technologies and future sonic realities, indexing sociohistorical cues that are reactivated at the point of listening.