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Here discussed is the relevance of non-pharmacological therapy, especially cooking therapy, in supporting the mental health recovery of adolescent disaster victims, especially those affected by the natural eruption of Mount Merapi in Yogyakarta, Indonesia.
This paper studied the back-stepping adaptive sliding mode control (SMC) attitude problem of quaternion aircraft model based on radial basis function (RBF) network approximation. Firstly, a sliding mode controller is designed based on the back-stepping method (BSM) for the nonlinear aircraft model. Secondly, a RBF network algorithm is designed to compensate for the unknown and uncertain parts of the aircraft system. RBF network has simple network structure and good generalisation ability, avoids lengthy and unnecessary calculations, realises adaptive approximation of unknown parts in the aircraft model, and through the adjustment of adaptive weights, the convergence and stability of the entire closed-loop system (CLS) are guaranteed. Finally, the anti-interference performance of the controller is verified by simulation of the actuator fault model. Our proposed method has all-right control performance indicated by the simulation results.
High-Froude-number flows become self-aerated when the destabilizing effect of turbulence overcomes gravity and surface tension forces. Traditionally, the resulting air concentration profile has been explained using single-layer approaches that invoke solutions of the advection–diffusion equation for air in water, i.e. bubbles’ dispersion. Based on a wide range of experimental evidence, we argue that the complete air concentration profile shall be explained through the weak interaction of different canonical turbulent flows, namely a turbulent boundary layer (TBL) and a turbulent wavy layer (TWL). Motivated by a decomposition of the streamwise velocity into a pure wall flow and a free-stream flow (Krug et al., J. Fluid Mech., vol. 811, 2017, pp. 421–435), we present a physically consistent two-state formulation of the structure of a self-aerated flow. The air concentration is mathematically built upon a modified Rouse profile and a Gaussian error function, resembling vertical mass transport in the TBL and the TWL. We apply our air concentration theory to over 500 profiles from different data sets, featuring excellent agreement. Finally, we show that the turbulent Schmidt number, characterizing the momentum-mass transfer, ranges between 0.2 and 1, which is consistent with previous mass-transfer experiments in TBLs. Altogether, the proposed flow conceptualization sets the scene for more physically based numerical modelling of turbulent mass diffusion in self-aerated flows.
This paper examines the arrival in Rome of the Portuguese special envoy D. André de Melo e Castro in 1707. It contemplates the circumstances surrounding the selection of his palace, the training of the members of his household, and certain aspects of Roman ceremonial by analysing the account books preserved in the archives of the Palacio Nacional de Ajuda (Lisbon). Until recently, historiography had only cited two palaces as residences of the diplomat during his long stay in Rome (1707–28): the Cavallerini and the Cesarini palaces. However, this study brings to light an earlier residence, the Buratti palace, and looks at the problems associated with the move to that residence, the decoration and furniture expenses, its implications in terms of the ceremonial deployed ad hoc, and the creation of a network of artisans and artists trusted by Melo.
The way social protest affects electoral outcomes remains a lacuna. This article helps fill this gap by examining how social protest against far right actors affects their electoral standing. The article utilizes a unique dataset of 4,745 local protest events to investigate how mobilization against the far right in Greece affected its electoral performance. The article finds that protest activity depressed the electoral results of the far right Golden Dawn by as much as 16%, after controlling for a number of important variables. The article identifies and specifies the patterns through which protests against the far right affect its electoral standing. Protests are effective when following the “tango” pattern—when there is close interaction of far right and anti-far right events. The timing of protest is also important and the article shows how the synchronization of protest and electoral cycles affects electoral outcomes. The article uses the findings to discuss the varying impact of protest across electoral cycles.
Intelligence and mental health are the core pillars of individual adaptation, growth, and opportunity. Here, we charted across childhood and adolescence the developmental interplay between the p-factor of psychopathology, which captures the experience of symptoms across the spectrum of psychiatric disorders, and the g-factor of general intelligence that describes the ability to think, reason, and learn.
Our preregistered analyses included 7,433 twin pairs from the Twins Early Development Study (TEDS), who were born 1994 to 1996 in England and Wales. At the ages 7, 9, 12, and 16 years, the twins completed two to four intelligence tests, and multi-informant measures (i.e., self-, parent- and teacher-rated) of psychopathology were collected.
Independent of their cross-sectional correlations, p- and g-factors were linked by consistent, bidirectional, and negative cross-lagged paths across childhood and adolescence (from −.07 to −.13 with 95% CIs from −.03 to −.15). The cross-lagged paths from intelligence to psychopathology were largely due to genetic influences, but the paths from psychopathology to intelligence were driven by environmental factors, and increasingly so with age.
Our findings suggest that intelligence and psychopathology are developmentally intertwined due to fluctuating etiological processes. Understanding the interplay of g- and p-factors is key for improving children’s developmental outcomes.
The instability and vortex shedding in the bottom boundary layer caused by internal solitary waves of depression propagating along a shallow pycnocline of a fluid are computed by finite-volume code in two dimensions. The calculated transition to instability agrees very well with laboratory experiments (Carr et al., Phys. Fluids, vol. 20, issue 6, 2008, 06603) but disagrees with existing computations that give a very conservative instability threshold. The instability boundary expressed by the amplitude depends on the depth $d$ of the pycnocline divided by the water depth $H$, and decays by a factor of 2.2 when $d/H$ is 0.21, and by a factor of 1.6 when $d/H$ is 0.16, and the stratification Reynolds number increases by a factor of 32. The instability occurs at moderate amplitude at large scale. The calculated oscillatory bed shear stress is strong in the wave phase and increases with the scale. Its non-dimensional magnitude at stratification Reynolds number 650 000 is comparable to the turbulent stress that can be extracted from field measurements of internal solitary waves of similar nonlinearity, moving along a pycnocline of similar relative depth.
Early-life adversity accelerates the maturation of affect-related circuitry, which might be a short-term adaptation with long-term tradeoffs. Sexual trauma is associated with a particularly strong impact on pubertal development and mental health outcomes. Our objective was to test the relations between trauma type, affective network maturity, and mental health outcomes in young women with trauma history. Trauma-exposed women aged 18–29 completed a clinical interview (n = 35) and an fMRI scan (n = 28). We used a public data set to train a machine learning algorithm to predict age from resting-state affective network connectivity and calculated network maturity as the difference between predicted and true age. We also performed principal component analysis on mental health outcomes and retained two components: clinical and state psychological outcomes. Compared to nonsexual trauma (n = 17), sexual trauma (n = 11) was associated with greater affective network maturity. In addition, for sexual trauma only, greater affective network maturity was associated with better clinical but not state psychological outcomes. These results suggest that sexual trauma during development might uniquely alter the maturational trajectory of affect-related circuitry, with distinct mental health consequences in emerging adulthood. Whereas delayed affective network maturation is associated with adverse clinical outcomes, accelerated affective network maturation might confer resilience in survivors.
The African Union (AU) has developed an elaborate gender governance architecture, including gender machineries and women’s desks, policy frameworks, path-breaking women’s rights laws, and ongoing campaigns on women’s rights–related issues. At the same time, the member states’ engagement with this architecture is at best lukewarm, with a lack of domestication, compliance, and accountability. This paradox is addressed in this article by developing the theoretical thinking around aspirational politics (Martha Finnemore and Michelle Jurkovich, ‘The politics of aspiration’, International Studies Quarterly, 64:4 [2020], pp. 759–69) and political brokers (Stacie E. Goddard, ‘Brokering change: Networks and entrepreneurs in international politics’, International Theory, 1:2 [2009], pp. 249–81), showing the social and relational origins of pan-African gender governance. In doing so, the article examines how ‘aspirational politics’ can be operationalized to examine the sociocultural and political production of shared future imaginaries. The paper focuses on AU femocrats as the key actors for AU’s aspirational gender agenda and argues for their importance as political brokers between AU member states, donors, UN agencies, and civil society organisations. By mobilizing actors and facilitating common ground and agreement, their institutionalized broker position allowed for various political entrepreneurs to emerge and thrive. At the same time, their pursuits are met with ‘aspirational fatigue’ or outright contestation by the member states. The case of the AU demonstrates how aspirational politics is not a ‘phase’ leading to norms governance but part and parcel of normative negotiation and engagement.
From the seventh century AD, successive Islamic polities were established around the Mediterranean. Historians have linked these caliphates with the so-called ‘Islamic Green Revolution’—the introduction of new crops and agricultural practices that transformed the economies of regions under Muslim rule. Increasingly, archaeological studies have problematised this largely text-based model of agrarian innovation, yet much of this research remains regionally and methodologically siloed. Focusing on the Western Mediterranean, the authors offer a theoretically informed, integrated environmental archaeology approach through which to contextualise the ecological impact of the Arab-Berber conquests. Its future application will allow a fuller evaluation of the scale, range and significance of agricultural innovations during the ‘medieval millennium’.
We exhibit, for arbitrary $\epsilon> 0$, subshifts admitting weakly mixing (probability) measures with word complexity p satisfying $\limsup p(q) / q < 1.5 + \epsilon $. For arbitrary $f(q) \to \infty $, said subshifts can be made to satisfy $p(q) < q + f(q)$ infinitely often. We establish that every subshift associated to a rank-one transformation (on a probability space) which is not an odometer satisfies $\limsup p(q) - 1.5q = \infty $ and that this is optimal for rank-ones.
Human trafficking is associated with wide-ranging mental and physical morbidity, as well as mortality, in the United States and globally. Emergency Medical Services (EMS) providers are often first responders to victims of human trafficking. Given their proximity to patients’ social and environmental circumstances, these clinicians need to be familiar with the signs and symptoms of human trafficking, as well understand how to best provide care for suspected or confirmed trafficked patients. Evidence from multiple studies indicates that providers who have received formal training may be better able to recognize the signs and symptoms of human trafficking, and thus, can provide better care to potential victims of human trafficking. This review will summarize the relevance of human trafficking to prehospital emergency care, touch on best practices for the care of patients with suspected or confirmed ties to human trafficking, and outline future directions for education and research.
In the gap region of tandem cylinders, within the reattachment regime, bi-stability is seen to be cellular. Direct numerical simulations at a Reynolds number of 500, and a gap ratio of 3.0, show that shedding of gap vortices occurs in spanwise cells, with lengths between 0.3 and 2.7 cylinder diameters. These unstable vortex cells tend to be asymmetric with respect to the gap centreline, so that vortices are repeatedly shed from just one gap shear layer for several periods. The unstable cells appear within the basic spanwise cell structure dictated by the three-dimensional instability, and their cell lengths do not exceed those of the basic cells. Unstable cells intermittently become spanwise coherent, and this leads to a significant increase in drag amplitude. The mode change in the gap is associated with low-frequency variation of the reattachment and separation points on the downstream cylinder, causing low-frequency modulation of the vortex formation length.
Let $\mathcal {F}$ denote the set of functions $f \colon [-1/2,1/2] \to \mathbb {R}_{\geq 0}$ such that $\int f = 1$. We determine the value of $\inf _{f \in \mathcal {F}} \| f \ast f \|_2^2$ up to a $4 \cdot 10^{-6}$ error, thereby making progress on a problem asked by Ben Green. Furthermore, we prove that a unique minimizer exists. As a corollary, we obtain improvements on the maximum size of $B_h[g]$ sets for $(g,h) \in \{ (2,2),(3,2),(4,2),(1,3),(1,4)\}$.