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The moderating roles of friendship and contextual variables on associations between social withdrawal and peer exclusion and growth curves of depressed affect were studied with a three-wave multilevel longitudinal design. Participants were 313 boys and girls aged 10–12 from Canada (n = 139), mostly of European and North African descent, and Colombia (n = 174), mostly mestizo, afrocolombian, and European descent. Depressed affect, peer exclusion, social withdrawal and friendship were assessed with peer-reports, and collectivism and individualism with self-reports. Group-level scores included gender, place and means of social withdrawal, peer exclusion, friendship, collectivism and individualism for each child’s same-gender classroom peer-group. Results indicated that being friended weakened associations between peer exclusion and social withdrawal and depressed affect. The strength of this effect varied across peer-group contexts.
We initiate a study of large deviations for block model random graphs in the dense regime. Following [14], we establish an LDP for dense block models, viewed as random graphons. As an application of our result, we study upper tail large deviations for homomorphism densities of regular graphs. We identify the existence of a ‘symmetric’ phase, where the graph, conditioned on the rare event, looks like a block model with the same block sizes as the generating graphon. In specific examples, we also identify the existence of a ‘symmetry breaking’ regime, where the conditional structure is not a block model with compatible dimensions. This identifies a ‘reentrant phase transition’ phenomenon for this problem – analogous to one established for Erdős–Rényi random graphs [13, 14]. Finally, extending the analysis of [34], we identify the precise boundary between the symmetry and symmetry breaking regimes for homomorphism densities of regular graphs and the operator norm on Erdős–Rényi bipartite graphs.
This article provides a brief introduction (or recapitulation) of what variable types are and how the choice of the variable type may affect which research questions can be answered and the data analysis. The nine-item Patient Health Questionnaire and a simulated data-set are used as an illustration throughout.
A graph $H$ is said to be common if the number of monochromatic labelled copies of $H$ in a red/blue edge colouring of a large complete graph is asymptotically minimised by a random colouring in which each edge is equally likely to be red or blue. We extend this notion to an off-diagonal setting. That is, we define a pair $(H_1,H_2)$ of graphs to be $(p,1-p)$-common if a particular linear combination of the density of $H_1$ in red and $H_2$ in blue is asymptotically minimised by a random colouring in which each edge is coloured red with probability $p$ and blue with probability $1-p$. Our results include off-diagonal extensions of several standard theorems on common graphs and novel results for common pairs of graphs with no natural analogue in the classical setting.
During World War II, Disney films on Nazism, health, and United States–Latin American friendship flickered across screens throughout Latin America. They were the centerpiece of an unprecedented propaganda program by the United States, and they were shown to Latin Americans both in theaters and through mobile projectors by the Office of Inter-American Affairs (OIAA). While the OIAA and the Disney films have received considerable scholarly attention, the complex collaboration between the government organization, communication scientists, the animation film studio, and local actors in creating, distributing, and measuring propaganda has not. With the goal of creating favorable attitudes toward the United States in the minds of individual Latin Americans, the OIAA and Disney developed a novel propaganda approach based on entertainment and education. They coupled it with a comprehensive distribution system based on local projectionists who showed the films to millions of Latin Americans and measured their reactions. Local governments allowed and supported these free screenings to bolster their own popularity. Latin American voices to criticize the US instrumentalization of Disney were few, and the overall reception of the films was very positive. On the basis of an inadequate evaluation that equated popularity and reach with effect, the Disney films were considered successful propaganda by the OIAA, paving the way for a global application of the new propaganda approach. Disney propaganda for Latin America was driven by the involved actor’s unbounded faith in film’s suitability for propaganda and must thus be understood as a hype around the untapped potential of a relatively new medium.
This article raises some questions about the intuitionist response to skepticism developed by Michael Bergmann in Radical Skepticism and Epistemic Intuition, with a focus on Bergmann’s contention that epistemic intuitions serve as justifying evidence in support of anti-skepticism. It raises three main concerns: that an intuitionist conception of evidence is overly narrow, that it has undesirable implications for cases of disagreement, and that the evidential role that epistemic intuitions play in Bergmann’s version of anti-skepticism undercuts his claim that an intuitionist particularist response to skepticism is superior to disjunctivist responses.
The rise of judicial populism in various national jurisdictions is usually explained through the vicissitudes of power conflicts between the judiciary and other governmental organs. In this article, I try to locate the origins of India’s well-known judicial populism in the peculiarities of Indian constitutional design itself. I argue that the heavily statist nature of India’s transformative constitutionalism, specifically its “Directive Principles of State Policy,” has made the practice of classical judicial review increasingly untenable and provided the grammar for its judicial populism. Directive Principles add another layer of complexity to the “counter-majoritarian difficulty” in India, forcing the constitutional courts to traverse increasingly unconventional territory to legitimise their role. It helps explain why the famously powerful Indian judiciary has failed to act as an institutional check to the crisis of constitutionalism well underway in India. The article provides a stark example of the normative challenges faced by a constitutional court in a transformative constitution.
We prove the coherence of multiplier submodule sheaves associated with Griffiths semi-positive singular hermitian metrics over holomorphic vector bundles on complex manifolds which have no nontrivial subvarieties, such as generic complex tori.
This article explores the social history of Sandakan and Jesselton (Kota Kinabalu) by studying how their urban environments were organized and navigated. Although the neighbourhood was not officially recognized as a category of space, it argues that analogous quarters existed within the towns during the early twentieth century. As the commercial capitals of British North Borneo, the towns contained migrant people of various ethnicities that formed separate communities. The socio-spatial boundaries of these quarters were nevertheless permeable, enabling cross-communal interactions. Life in Sandakan and Jesselton was characterized by a contingency and complexity suitable for comparison with larger colonial cities.
The right to silence and the presumption of innocence are fundamental to fair criminal proceedings. Section 313 of the Code of Criminal Procedure, 1973 (CrPC) permits courts in India to question the accused, allowing them to explain incriminating evidence. However, judicial interpretations of this provision have raised concerns about undermining these essential rights. This paper critically examines the evolving interpretations of Section 313 of the CrPC and their implications for the right to silence and the presumption of innocence. It argues that current judicial practices have turned the right to remain silent into a duty to provide explanations, contradicting natural justice principles. This study addresses three key questions: (1) How has the interpretation of Section 313 of the CrPC evolved in Indian jurisprudence, and what impact does this have on the accused’s right to remain silent? (2) In what ways does the current application of Section 313 of the CrPC conflict with Article 20(3) of the Constitution, which protects against self-incrimination? (3) What are the potential consequences of misapplying Section 313 on the presumption of innocence, and how can these issues be remedied through judicial or legislative reforms? The paper concludes with recommendations to preserve the integrity of the criminal justice system and ensure robust protection of the right to silence and the presumption of innocence.
The proliferation of Artificial Intelligence (AI) is significantly transforming conventional legal practice. The integration of AI into legal services is still in its infancy and faces challenges such as privacy concerns, bias, and the risk of fabricated responses. This research evaluates the performance of the following AI tools: (1) ChatGPT-4, (2) Copilot, (3) DeepSeek, (4) Lexis+ AI, and (5) Llama 3. Based on their comparison, the research demonstrates that Lexis+ AI outperforms the other AI solutions. All these tools still encounter hallucinations, despite claims that utilizing the Retrieval-Augmented Generation (RAG) model has resolved this issue. The RAG system is not the driving force behind the results; it is one component of the AI architecture that influences but does not solely account for the problems associated with the AI tools. This research explores RAG architecture and its inherent complexities, offering viable solutions for improving the performance of AI-powered solutions.
The transient dynamics of a wake vortex, modelled as a strong swirling $q$-vortex, is investigated with a focus on optimal transient growth driven by continuous eigenmodes associated with continuous spectra. The pivotal contribution of viscous critical-layer eigenmodes (Lee and Marcus, J. Fluid Mech. vol. 967, 2023, p. A2) amongst the entire eigenmode families to optimal perturbations is numerically confirmed, using a spectral collocation method for a radially unbounded domain that ensures correct analyticity and far-field behaviour. The consistency of the numerical method across different sensitivity tests supports the reliability of the results and provides flexibility for tuning. Both axisymmetric and helical perturbations with axial wavenumbers of order unity or less are examined through linearised theory and nonlinear simulations, yielding results that align with existing literature on energy growth curves and optimal perturbation structures. The initiation process of transient growth is also explored, highlighting its practical relevance. Inspired by ice crystals in contrails, the backward influence of inertial particles on the vortex flow, particularly through particle drag, is emphasised. In the pursuit of optimal transient growth, particles are initially distributed at the periphery of the vortex core to disturb the flow. Two-way coupled vortex–particle simulations reveal clear evidence of optimal transient growth during ongoing vortex–particle interactions, reinforcing the robustness and significance of transient growth in the original nonlinear vortex system over finite time periods.
The ‘overview effect’ was described by astronauts who saw the earth from space and found this gave them a very different perspective. This effect is a shift in worldview, and it has been suggested that politicians be sent to space to change their narrow perspectives. In a similar vein, it is crucial that psychiatrists have an overview of their patients so that their perspectives on patient care enable them to deal with the patient from different angles. In this editorial, the overview effect is described in the context of clinical care.