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Frameworks are widespread in developmental psychology. They provide general ideas about what to study in human development: which concepts to focus on (e.g., systems, timescales), which processes to test (e.g., micro–macro, bidirectional), and which methods to use (e.g., interview, dynamical equations). However, despite their prominence, there exists very little consensus or guidance on how to use frameworks in research. As such, they have an obscure role, influencing our research questions, methods, and theory, but often in ways we cannot articulate for ourselves, let alone for others. This Views paper presents our perspective on how different frameworks can inform the assumptions, targets, goals, context, timing, and methods of a research project. As an illustrative example, we use Bronfenbrenner’s bioecological framework to inform research investigating how parent–child relationships shape the development of executive self-regulation. We also show how different frameworks relevant to developmental psychopathology can inform a research project in distinct ways. Thus, this Views paper provides a practical guide for developmental researchers to more explicitly use and benefit from frameworks in their research.
Passive gust load alleviation systems have the potential to significantly reduce airframe mass without reliance on complex systems of sensors and actuators. Recent experimental work by the authors has shown that a passive, strain-actuated spoiler can rapidly reduce the lift coefficient of an aerofoil. In this work, we numerically investigate the efficacy of a strain-actuated spoiler in alleviating loads within the wider airframe. The airframe is represented by a beam model which is exposed to a series of One-Minus-Cosine gusts. The effect of the spoiler on the wing is captured by locally reducing lift when wingbox strains meet a triggering condition. The model spoiler is shown to be capable of reducing the sizing wing root bending moment by up to $17$% for the airframe and spoiler parameters considered. In addition, the sensitivity of this load alleviation to key spoiler design parameters is investigated. It is found that deploying the spoiler as early as possible in the gust provides the best load alleviation performance. In a few cases, the spoiler is found to induce a limit cycle oscillation in the wing by repeatedly deploying and stowing. This may be an artefact caused by the low fidelity structural model employed in this work. Nonetheless, two ways of preventing this behaviour are demonstrated. Our work demonstrates for the first time that a strain-actuated spoiler is capable of alleviating loads at the scale of a full aircraft.
What happens when scientists, dedicated to basic scientific research, are called forth to participate in politically fraught scenarios? We explore this question through a qualitative study of the intimate experiences of scientists who developed the first Argentine National Glacier Inventory (2010–2018). This inventory was entrusted to IANIGLA, a state-funded scientific institute. It arose from the world’s first glacier protection law, drafted to protect all glacier and periglacial environments as hydrological reserves as mining megaprojects encroached on them. This article examines the failed attempts to turn periglacial environments into “governable objects” (Hellgren 2022). Interviews and an auto-ethnography among scientists involved reveal that these failures can be attributed to unresolved tensions in upscaling and downscaling practices that are needed to simultaneously produce world-class climate science and locally relevant policy science. The failure to anticipate or resolve those tensions, in the context of grassroots opposition to mining, undermined trust in science and government, pointing to the local limits of global climate science.
Chapter 7 is devoted to the free particle and the derivation of the time-dependent Schrödinger equation. The free particle might be thought to be the simplest quantum problem of all, but a detailed treatment of it, including both Born and Dirac normalization, serves to highlight some surprising features. Powerful tools are introduced that are of wider application, notably the Green function method and the Feynman propagator. This material paves the way for the study of the time-dependent Schrödinger equation, the introduction of the current density of particles and the distinction between pure states and mixtures; the equation is applied specifically to the study of coherent states. The chapter ends with an introduction to the propagator in the general case.
In 2018, domestic food production plummeted in the Democratic People’s Republic of Korea (North Korea, DPRK) and has not recovered. United Nations agencies reported that the economic sanctions imposed by the United Nations Security Council (UNSC) were consequential in the decrease in food production. What has been little reported, however, is the scale of damage to the DPRK food economy from sanctions. The vast majority of the population of 26 million rely on domestic food production to survive. Imports of vehicles, including tractors, spare parts, irrigation equipment, and all technology essential for producing food are banned by the expanded UN sanctions of 2016 and 2017. Oil imports, necessary for crucial aspects of food production (the DPRK is not an oil-producer), from transport to fertilizer production, are capped at an annual amount lower than the amount that South Korea consumes in one day. Without these essential inputs, domestic food production cannot recover. This was not a new scenario for North Koreans. The abrupt end of subsidized trade from Russia, Eastern Europe, and China at the end of the Cold War provided the proximate cause of the famine of the 1990s that had killed up to half a million people. The UN sanctions of 2016 and 2017 reproduced the conditions that generated famine in the 1990s.
This study investigates the potential of rumination-focused cognitive behavioural therapy (RFCBT) to address core issues in adolescents with social anxiety disorder (SAD). Specifically, it examines RFCBT’s effectiveness in reducing internalized shame, negative interpretation biases, and rumination, which contribute significantly to their social anxiety. The present study employed a quasi-experimental design with a pre-test, post-test, and follow-up phase. The population of the study included all adolescents with SAD in Ahvaz, Iran, in 2023. The sample consisted of 48 adolescents with SAD who were selected using convenience sampling and then randomly assigned to either the RFCBT group or the control group (24 participants per group). The research instruments included the Social Anxiety Questionnaire, the Child Internalized Shame Scale, the Interpretation Bias Questionnaire, and the Rumination Response Scale (RRS). Repeated measures analysis of variance (ANOVA) was used to analyse the data. The findings indicate that RFCBT had a significant effect on reducing internalized shame, interpretation bias, and rumination (p<0.01) in adolescents with SAD, with results maintained at follow-up. This study adds to the evidence that RFCBT can be helpful for anxiety disorders in adolescents. RFCBT seems to work by addressing negative self-views, biased interpretations, and repetitive negative thinking patterns. More research is needed to determine if these benefits are sustained long-term and if RFCBT can improve social skills and overall well-being for adolescents with social anxiety.
Key learning aims
(1) Understand the efficacy of RFCBT in reducing internalized shame, negative interpretation bias, and rumination in adolescents with SAD.
(2) Gain insight into the cognitive and behavioural mechanisms through which RFCBT addresses core maintaining factors of SAD, such as negative self-perceptions and avoidance behaviours.
(3) Learn about the application of functional analysis, self-compassion training, and cognitive restructuring within RFCBT to disrupt maladaptive thought patterns in adolescents.
(4) Recognize the potential of group-based RFCBT to foster peer support and enhance treatment engagement among adolescents with SAD.
(5) Explore the study’s findings on the sustainability of RFCBT outcomes at follow-up and their implications for long-term management of social anxiety symptoms.
Interest in psilocybin as a treatment for depression has risen over the past decade, fuelled by promising clinical trials and a rapidly evolving regulatory landscape. Media coverage plays a critical role in shaping public perceptions, yet little is known about how psilocybin is portrayed in global anglophone online news for the treatment of depression.
Methods:
This study examines the comprehensiveness and sentiment of English-language online news articles (n = 125) discussing psilocybin as a treatment for depression from January 2000 to May 2024. Articles were sourced from the top 30 global anglophone news outlets, assessed using a 13-item instrument for comprehensiveness, and analysed for sentiment across five thematic categories. A separate sub-analysis was completed for Irish media.
Results:
Findings indicate a significant increase in coverage over time, with 43.2% of articles published between 2022 and 2024, predominantly from the USA (68%). While 90.4% of articles cited researchers, fewer addressed risks (47.2%), long-term evidence (46.4%), or patient perspectives (25%). Sentiment analysis revealed a very positive sentiment across articles which was 2.27 on a scale from −5 (most negative) to + 5 (most positive) (SD 1.33), with no significant changes over the time period. Reporting on psilocybin’s onset and duration of effects increased significantly, reflecting growing clinical evidence. However, coverage remains concentrated in prominent outlets, with limited attention to patient experiences and long-term safety.
Conclusions:
These findings highlight the media’s role in shaping discourse on emerging treatments and suggest a need for more balanced reporting to align public understanding with scientific evidence. This study provides a foundation for future research on media portrayals of psilocybin and implications for public perception and policy.
Spectral analysis of the transport process of turbulence kinetic energy (TKE) in a channel roughened with spanwise-aligned circular-arc ribs is conducted based on direct numerical simulations (DNS). Test cases of varying pitch-to-height ratios ($P/H=3.0$, 5.0 and 7.5) and bulk Reynolds numbers (${\textit{Re}}_b=5600$ and 14 600) are compared. It is observed that the characteristic spanwise wavelength of the energy-containing eddies in the internal shear layer (ISL) increases as the value of $P/H$ increases, but decreases as the Reynolds number increases. In the ISL, the energy transport processes are dominated by turbulent production as the lead source term, but by turbulent diffusion and dissipation as the lead sink terms. It is found that regions with high production and dissipation rates of TKE in the ISL are associated with moderate and small wavelengths, respectively. The TKE production for sustaining moderate- and large-scale motions enhances gradually with an increasing value of $P/H$, while that for sustaining small-scale motions augments as the Reynolds number increases. It is interesting to observe that the interscale-transport term plays a critical role in draining TKE at moderate wavelengths as a sink and carries the drained TKE to small-scale eddies as a source. It is discovered that a higher pitch-to-height ratio leads to shortening of the characteristic spanwise wavelength of the dissipation process but prolongation of those of the production, interscale-transport and turbulent-diffusion processes in the ISL. By contrast, a higher Reynolds number results in reductions in the characteristic spanwise wavelengths of all spectral transport terms.
This study examines the intricate relationship between financial development, institutional quality and environmental efficiency. While financial development has the potential to support environmental sustainability, concerns remain regarding its unintended negative effects through unchecked economic expansion. The objective of this research is to investigate how financial development affects environmental efficiency and to assess the moderating role of institutional quality, particularly when financial development proxies reflect financial market accessibility and efficiency. Using a directional distance function within a stochastic frontier framework and incorporating multiple financial development indicators alongside measures of institutional quality, we find that financial development significantly reduces environmental inefficiency, with institutional quality strengthening this effect. These results highlight the importance of policy approaches that simultaneously enhance financial development and institutional quality. Furthermore, our findings support targeted initiatives such as promoting green finance, building institutional capacity and investing in research and data infrastructure to inform evidence-based policymaking for sustainable development.
Questions about race and representation often hinge on the public’s beliefs about which policies affect different communities, yet there is limited evidence on how these associations are actually perceived. Using a nationally representative survey experiment, we examine how the issue priorities of political candidates shape perceptions of who they represent. Most policy areas are perceived to benefit White Americans; only a few, especially criminal justice and poverty, are strongly associated with African Americans. We also show that perceptions of candidate ideology and race correlate with perceptions of Black representation, but mediation analysis reveals that criminal justice is associated with Black representation above and beyond ideological inferences. Finally, analyzing nearly 200,000 congressional newsletters and find that while race is rarely explicitly mentioned, Black Americans are most frequently referenced in the context of criminal justice and poverty. Together, these results underscore how race-policy associations operate through both public perception and elite messaging, shaping broader understandings of political representation.
Parkinson’s disease (PD) is a neurodegenerative disorder whose diagnostic motor symptoms appear only after significant progression of neurodegeneration. Identification of preclinical markers is essential. Idiopathic rapid eye movement sleep behavior disorder (iRBD) has a high risk of conversion to PD. Olfactory impairment (hyposmia) is present in both PD and iRBD; hyposmia in iRBD may be an additional clue indicating the development of PD. The processes underlying hyposmia in iRBD are unknown. Using resting-state functional connectivity (rsFC), a “sensory olfactory subnetwork” (SOS) has been identified that is thought to represent the processing of basic sensory olfactory information. We investigated whether changes in the SOS are seen in both PD and iRBD and whether changes are associated with hyposmia in both conditions.
Methods:
The University of Pennsylvania Smell Identification Test (UPSIT) and a seed-based approach to analyze SOS region rsFC in early PD, iRBD and healthy controls (HC) were employed. Our SOS regions included (right hemisphere) anterior piriform cortex, dorsal insula (INSd), ventral insula (INSv), posterior insula (INSp) and ventral posterior thalamus (THLvp).
Results:
Compared to HC, idiopathic iRBD and PD participants performed significantly worse on UPSIT and exhibited lower FC between INSd and INSv and higher FC between INSd and THLvp and INSv and THLvp. UPSIT scores were negatively correlated with FC between INSv and THLvp and INSp and THLvp.
Conclusion:
Idiopathic iRBD may be associated with similar functional and perceptual olfactory alterations and potential compensatory changes as early PD, which may show promise as additional preclinical biomarkers of PD.
Chapter 12 uses the results presented in the previous chapter to deal with systems consisting of two particles interacting via a central potential. It therefore begins by transforming the Hamiltonian of the two-particle system into one that separates the center-of-mass motion from the relative motion. When the potential is spherically symmetric, the relative motion is conveniently described in spherical coordinates to take advantage of the conservation of angular momentum and the solution of the corresponding eigenvalue problem. The chapter contains a detailed discussion of the rigid rotor and the free particle, as well as the selection rules for angular momentum, in preparation for the study of the most important problem of atomic physics, the hydrogen atom. The H spectrum is discussed in detail, and the introduction of minimal coupling to the electromagnetic field allows for a discussion of the normal Zeeman effect as well as the Aharonov-Bohm effect.
Between 2015 and 2022, the Venezuelan economy was crumbling to an extent otherwise only seen in war-ridden economies. This collapse is mostly attributed to failed economic governance and the collapse of the oil sector, the most important contributor to the country’s foreign income. However, starting in 2017, the US imposed sectoral sanctions limiting financial transactions and oil and gold exports from Venezuela. The main debate about the effects of the US-imposed sanctions has been about their relative responsibility for the plummeting oil-production. This chapter instead discusses the impact of sanctions on the Venezuelan non-oil private sector. Sanctions affected companies through a credit crunch and severe limitations in access to supplies and markets. The sanctions have had the overall effect of informalizing and increasingly criminalizing the Venezuelan economy, while we also see the emergence of a new business elite with close ties to the government. We argue that in the case of Venezuela, sanctions were counterproductive as they had strong negative impacts on groups sharing the cause of those imposing the sanctions. In this case, US-imposed sanctions weakened and divided the private sector (as much as the Venezuelan opposition), which has been a main supporter of the political opposition supporting the US goal of regime change.