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Although research has highlighted that suicidal imagery (SuiMI) and experiential avoidance (EA) are important in understanding suicidality, there is a need to understand how they potentially interact. Previous research has highlighted that EA potentially leads to increased cognitive intrusions, but it not known whether EA leads to increased SuiMI.
Aims:
The purpose of this study was to explore the influence of SuiMI and EA on suicidality (i.e. encompassing thoughts, behaviour and suicide attempts). It was hypothesised that greater frequency of SuiMI would be associated with greater EA. It was also hypothesised that greater SuiMI would be associated with greater suicidality, and that EA would moderate this relationship.
Method:
Hypotheses were tested by surveying 197 general university students who completed self-report measures that assessed suicide-related mental imagery (i.e. Suicidal Imagery Questionnaire, SIQ), experiential avoidance (i.e. Multi-dimensional Experiential Avoidance Questionnaire, MEAQ) and suicidality (i.e. Suicidal Behaviours Questionnaire-Revised, SBQ-R).
Results:
Frequency of SuiMI was positively correlated with the tendency to engage in EA. SuiMI was a significant predictor of both suicidality and EA. Exploratory analysis found that voluntary SuiMI explained greater variance in suicidality than intrusive, involuntary SuiMI, and that SuiMI only predicted EA in low-risk participants and not for those at high risk of suicide. EA did not predict suicidality and it also did not show any moderating effect on the relationship between SuiMI and suicidality.
Conclusion:
There is evidence to suggest that suicide-related mental imagery may play an important role in suicide risk and more specifically imagery that is voluntarily engaged with. Future research is needed to explore the different types of imagery in relation to suicidal ideation in populations at higher risk of suicide.
Zambia has recently witnessed the removal of four High Court judges within a period of less than two years, raising questions about the country’s commitment to judicial independence. This article examines the extent to which the current legal framework governing the removal of judges in Zambia coheres with the principles of judicial accountability and independence. Drawing upon insights from relevant international standards and scholarly literature, the article posits that the removal of judges is not only a necessary mechanism for judicial accountability but should also be seen as an essential safeguard for judicial independence. Its analysis suggests that some of the grounds for removal and the lack of adequate procedural safeguards within the current legal framework pose threats to both judicial accountability and independence. The article concludes with a call for necessary legal reform, urging policymakers to bring the framework in line with relevant international standards.
Compassion is the emotion that motivates people to relieve the physical, emotional, or mental pains of others. Engaging in compassionate behaviour has been found to enhance psychological wellness and resilience. However, constant displays of compassionate behaviour can lead to burnout particularly for healthcare workers who inherently practise compassion day to day. This burnout can be relieved by Compassion focused meditation. The aim of this review is to identify neuroplastic changes in the brain associated with meditation, with a focus on compassion and compassion related meditation.
Methods:
Based on PRISMA guidelines, we conducted a scoping review of studies which described neuroplastic effects of meditation, focusing on compassion-based training. Studies were excluded if they (i) included multiple meditation practices or (ii) included participant populations with psychiatric/neuropsychiatric history (except anxiety or depression) or (iii) included exclusively ageing populations.
Results:
The results of the reviewed studies showed various neurological changes in regions of the brain as a result of compassion based training. These regions include amygdala, the anterior insula, medial prefrontal cortex, medial orbitofrontal cortex and structures within the dopamine system.
Conclusion:
This review highlights that compassion-based training could lead to neuroplastic changes which interconnect to enhance overall well-being, resilience and compassionate care among health-care professionals. However, further work is required to establish conclusive evidence of its sustained benefit and cost-effectiveness, as well as its utility in a healthcare setting.
Many academics today struggle with their role in the climate and ecological crisis. Increasing numbers take to the streets to demand stronger climate measures, not just as citizens, but as scientists and scholars. How should we conceptualize and evaluate such actions? I examine the responsibilities of academics in the context of the climate and ecological crisis. I offer a defense of academic climate activism that is grounded in membership of the academic community and its special position in the climate crisis, not in the specific expertise of individual scholars. We have a responsibility, as members of the academic community, to listen to our colleagues’ warnings, let their message sink in, reflect on it, and let it move us to action. Such action can take many forms, including collective action. In a context where such warnings are actively thwarted, participating in protest as an academic is not necessarily undemocratic, nor at odds with professional integrity.
In Rayleigh–Bénard convection and Taylor–Couette flow cellular patterns emerge at the onset of instability and persist as large-scale coherent structures in the turbulent regime. Their long-term dynamics has been thoroughly characterised and modelled for the case of turbulent convection, whereas turbulent Taylor rolls have received much less attention. Here we present direct numerical simulations of axisymmetric Taylor–Couette flow in the corotating regime and reveal a transition to spatio–temporal chaos as the system size increases. Beyond this transition, Taylor rolls suddenly undergo erratic drifts evolving on a very slow time scale. We estimate an effective diffusion coefficient for the drift and compare the dynamics with analogous motions in Rayleigh–Bénard convection and Poiseuille flow, suggesting that this spontaneous diffusive displacement of large coherent structures is common among different types of wall-bounded turbulent flows.
Let q be a power of a prime p, let $\mathbb F_q$ be the finite field with q elements and, for each nonconstant polynomial $F\in \mathbb F_{q}[X]$ and each integer $n\ge 1$, let $s_F(n)$ be the degree of the splitting field (over $\mathbb F_q$) of the iterated polynomial $F^{(n)}(X)$. In 1999, Odoni proved that $s_A(n)$ grows linearly with respect to n if $A\in \mathbb F_q[X]$ is an additive polynomial not of the form $aX^{p^h}$; moreover, if q = p and $B(X)=X^p-X$, he obtained the formula $s_{B}(n)=p^{\lceil \log_p n\rceil}$. In this paper we note that $s_F(n)$ grows at least linearly unless $F\in \mathbb F_q[X]$ has an exceptional form and we obtain a stronger form of Odoni’s result, extending it to affine polynomials. In particular, we prove that if A is additive, then $s_A(n)$ resembles the step function $p^{\lceil \log_p n\rceil}$ and we indeed have the identity $s_A(n)=\alpha p^{\lceil \log_p \beta n\rceil}$ for some $\alpha, \beta\in \mathbb Q$, unless A presents a special irregularity of dynamical flavour. As applications of our main result, we obtain statistics for periodic points of linear maps over $\mathbb F_{q^i}$ as $i\to +\infty$ and for the factorization of iterates of affine polynomials over finite fields.
To gather and analyse information from the literature concerning the management of otitis media with effusion in adults.
Methods
A review of the English-language literature from 1970 to the present.
Results
Ventilation tubes have been the standard treatment for otitis media with effusion in adults, but examination of the results of published studies shows that they are associated with disappointing outcomes and significant complications, notably intermittent or chronic discharge, particularly in cases associated with nasopharyngeal carcinoma. Balloon dilatation of the Eustachian tube, intratympanic steroid therapy and cortical mastoidectomy appear to be possible alternatives.
Conclusion
A rethink of the management of otitis media with effusion in adults is needed, together with further research. For cases not associated with nasopharyngeal carcinoma, intratympanic steroid therapy appears to be a promising option.
We show that every $(n,d,\lambda )$-graph contains a Hamilton cycle for sufficiently large $n$, assuming that $d\geq \log ^{6}n$ and $\lambda \leq cd$, where $c=\frac {1}{70000}$. This significantly improves a recent result of Glock, Correia, and Sudakov, who obtained a similar result for $d$ that grows polynomially with $n$. The proof is based on a new result regarding the second largest eigenvalue of the adjacency matrix of a subgraph induced by a random subset of vertices, combined with a recent result on connecting designated pairs of vertices by vertex-disjoint paths in $(n,d,\lambda )$-graphs. We believe that the former result is of independent interest and will have further applications.
Schizophrenia is a chronic condition that requires long-term management. Quality of life is an important outcome measure for individuals diagnosed with schizophrenia; it can be tracked over time allowing evaluation of whether interventions lead to sustainable improvements. Nutrition and dietary interventions are an underutilized treatment for tackling the metabolic consequences of mental illness, which is now recognized as having increased importance in the management of schizophrenia. This study examines the impact of nutrition and dietary interventions on quality of life outcomes for those with schizophrenia.
Methods:
A systematic review of the literature was conducted, assessing the impact of nutritional interventions on quality of life outcomes in individuals with a diagnosis of schizophrenia.
Results:
A total of 982 articles were screened, of which nine articles met the inclusion criteria. Quality of life measures varied across studies, which made comparison across studies challenging. Previous studies had relatively small sample sizes and did not have long follow-up durations. Some of the studies found that dietary interventions such as counselling, weight management programs, food diaries and nutritional education improved quality of life, whereas others did not detect any effect.
Conclusions:
The review provides preliminary evidence that nutrition and dietary interventions may benefit quality of life among individuals with schizophrenia. There were however substantial limitations in studies highlighting the need for further research. The paper also highlights the need to standardize assessment tools for future quality-of-life research.
Advance Choice Documents (ACDs) have been recommended for inclusion in new mental health legislation for England and Wales based on evidence they reduce compulsory psychiatric admission, with particular benefit for Black people. As Black people disproportionately experience compulsory psychiatric admission in the UK, our aim was to explore potential barriers and enablers to effective ACD implementation for Black people with previous experience of compulsory admission.
Methods:
Six stakeholder workshops and one consensus workshop were held with: Black service users who had previously been involuntarily admitted, carers/supporters of Black service users, and mental health staff. Thematic analysis was conducted on workshop transcripts.
Results:
Participants were service users (n = 13), carers/supporters (n = 7), service users and carers/supporters (n = 3), and staff (n = 18). Thematic analysis identified themes of ‘training’, ‘completion’, ‘access’, and ‘use’ concerning ACD implementation. Stakeholders highlighted the importance of understanding the racialised experience of Black service users for effective ACD implementation. Strong communication between and amongst stakeholders and helpful systems for access were also emphasised. Stakeholders also recommended joint training and independent facilitation of ACDs to address Black service user-staff power imbalances.
Conclusions:
Known enablers and barriers to ACD implementation are important when considering ACDs for Black people, as is explicitly engaging with their experiences holistically, including racialised historical and individual experiences that underline some treatment preferences. Independent facilitation and shifts in service user-staff power dynamics present as key to realising the potential of ACDs to empower Black service users in relation to their care, and in turn to potentially reduce coercive care.
The illegal theft of old trees threatens China’s ecological and cultural heritage. Despite legal protections, their high-value timber has persistently fuelled illicit trade driven by economic incentives and weak enforcement in remote areas, endangering biodiversity and cultural traditions. This Comment article proposes comprehensive and alternative approaches to combat the illegal theft of old trees by advocating for a strengthened legal framework, enhanced monitoring systems and increased support for local authorities. It highlights the importance of public awareness and community engagement in conservation efforts to address the ingrained economic drivers of this illegal trade.
This article investigates the observation that the object of obligatorily transitive verbs in Jordanian Arabic cannot drop in VSO clauses but can in SVO clauses as long as its referent is already mentioned in the previous discourse of an accompanying utterance. When object drop takes place, the subject of the accompanying clause should be a [+definite] or [+specific] element. This article provides an account of this generalization, based on the topic nature of the subject and the object, their structural positions in the high and low peripheries and the effect of relativized minimality in ruling out movement of one over the other.
This study investigates the seasonal and regional distribution of paediatric laryngomalacia admissions in the United States, hypothesizing higher admission rates in winter and colder regions due to reduced sunlight exposure affecting vitamin D levels.
Methods
We analyzed data from the 2016 Kids’ Inpatient Database (KID), focusing on children under three years old. Laryngomalacia cases were identified using International Classification of Diseases and Related Health Problems 10th Revision (ICD-10) code Q31.5. Seasonal and regional differences in admission rates were assessed using Pearson’s chi-squared test, with a significance level of p less than 0.05.
Results
Of 4,512,196 estimated national admissions, 11,638 were due to laryngomalacia. Admissions increased by 10.0 per cent in winter and decreased by 10.9 per cent in summer (p < 0.005). Regionally, admissions were higher in the Midwest/Central (18.6 per cent) and Northeast (9.3 per cent) and lower in the South (7.4 per cent) and West (11.1 per cent) (p < 0.005).
Conclusion
Laryngomalacia admissions are significantly influenced by seasonal and regional factors, likely related to environmental conditions affecting vitamin D synthesis.
Wind turbines operate in the atmospheric boundary layer (ABL), where Coriolis effects are present. As wind turbines with larger rotor diameters are deployed, the wake structures that they create in the ABL also increase in length. Contemporary utility-scale wind turbines operate at rotor diameter-based Rossby numbers, the non-dimensional ratio between inertial and Coriolis forces, of $\mathcal {O}(100)$ where Coriolis effects become increasingly relevant. Coriolis forces provide a direct forcing on the wake, but also affect the ABL base flow, which indirectly influences wake evolution. These effects may constructively or destructively interfere because both the magnitude and sign of the direct and indirect Coriolis effects depend on the Rossby number, turbulence and buoyancy effects in the ABL. Using large eddy simulations, we investigate wake evolution over a wide range of Rossby numbers relevant to offshore wind turbines. Through an analysis of the streamwise and lateral momentum budgets, we show that Coriolis effects have a small impact on the wake recovery rate, but Coriolis effects induce significant wake deflections which can be parsed into two regimes. For high Rossby numbers (weak Coriolis forcing), wakes deflect clockwise in the northern hemisphere. By contrast, for low Rossby numbers (strong Coriolis forcing), wakes deflect anti-clockwise. Decreasing the Rossby number results in increasingly anti-clockwise wake deflections. The transition point between clockwise and anti-clockwise deflection depends on the direct Coriolis forcing, pressure gradients and turbulent fluxes in the wake. At a Rossby number of 125, Coriolis deflections are comparable to wake deflections induced by ${\sim} 20^{\circ }$ of yaw misalignment.
This article aimed to summarize the clinical characteristics and our experience with the diagnosis and management of laryngocele. We offer our perspectives for cases associated with laryngeal cancer.
Methods
A retrospective study of 14 patients with laryngocele was accomplished from June 2014 to June 2024. Clinical data were analyzed through descriptive statistical methods.
Results
A total of 14 laryngocele patients were divided into internal type (n = 11; 78.6 per cent) and combined type (n = 3; 21.4 per cent). Nine laryngocele patients (n = 9; 64.3 per cent) were accompanied by laryngeal cancer. The transoral approach was applied in 11 internal laryngocele patients with no post-operative complications or recurrences.
Conclusion
Laryngoscopy and imaging examination are helpful for diagnosis especially to exclude laryngeal cancer. The transoral approach is effective for the internal type, and the key is to resect the anterior part of the false vocal fold. For patients with concomitant laryngeal cancer, the laryngocele should be promptly managed.