We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
To save content items to your account,
please confirm that you agree to abide by our usage policies.
If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.
Find out more about saving content to .
To save content items to your Kindle, first ensure no-reply@cambridge.org
is added to your Approved Personal Document E-mail List under your Personal Document Settings
on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part
of your Kindle email address below.
Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations.
‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
The Paragaricocrinidae is an enigmatic late Paleozoic family of camerate crinoids that retained a robustly constructed calyx more typical of Devonian to Early Mississippian crinoids. The discovery of the oldest member of this family, Tuscumbiacrinus madisonensis n. gen. n. sp., initiated a phylogenetic investigation of the Paragaricocrinidae and consideration of its diversification and paleobiogeographic distribution. Phylogenetic analyses demonstrate the need to describe Tuscumbiacrinus n. gen and conduct revisions to preexisting taxa, resulting in the description of Palenciacrinus mudaensis n. gen. n. sp.; Pulcheracrinus n. gen.; Nipponicrinus hashimotoi n. gen. n. sp.; and Nipponicrinus akiyoshiensis n. gen. n. sp. Megaliocrinus exotericus Strimple is reassigned to Pulcheracrinus n. gen. In addition to having an anachronistic morphology, relatively few specimens are known through the ca. 76-million-year duration of this family. This pattern is unlikely to have resulted from low fossil sampling alone, and instead likely reflects low abundance and/or taxonomic richness of a long-lived waning clade. From its apparent origination in Laurussia during the Mississippian, the Paragaricocrinidae diversified into a cosmopolitan clade. Following a diversity drop during the Pennsylvanian, the Paragaricocrinidae persisted but exemplified characteristics of a dead clade walking until its eventual extinction during the middle Permian (Wordian).
Recent changes to US research funding are having far-reaching consequences that imperil the integrity of science and the provision of care to vulnerable populations. Resisting these changes, the BJPsych Portfolio reaffirms its commitment to publishing mental science and advancing psychiatric knowledge that improves the mental health of one and all.
Extreme events (e.g. floods and disease outbreaks) can overwhelm healthcare workers (HCWs) and healthcare systems. During the COVID-19 pandemic, high levels of distress and mental ill health were reported by HCWs.
Aims
To examine and synthesise research findings reported in the qualitative literature regarding the stressors, and their psychosocial impacts, faced by HCWs in the UK during the COVID-19 pandemic, and to provide lessons for future support.
Method
Qualitative articles were identified in EMBASE and OVID (preregistered on PROSPERO: CRD42022304235). Studies were required to have been published between January 2021 and January 2022 and to have examined the impact of COVID-19 on UK HCWs. We included 27 articles that represented the experiences of 2640 HCWs, assessed their quality using National Institute for Health and Care Excellence criteria and integrated their findings using thematic synthesis.
Results
Several secondary stressors were identified, including lack of personal protective equipment, ineffective leadership and communication, high workloads and problems stemming from uncertainty and a lack of knowledge. Stressors were related to adverse psychosocial outcomes including worry, fatigue, lack of confidence in oneself and senior managers, impacts on teamwork and feeling unappreciated or that one’s needs are not recognised.
Conclusions
Our thematic synthesis moves beyond simply mapping stressors faced by HCWs by considering their antecedents, origins and psychosocial impacts. Utilising a theoretical framework that points towards systemic deficiencies, we argue that secondary stressors can be modified to remove their negative effects. Consequently, workforce planning should shift from focusing on individual change towards amending psychosocial environments in which HCWs work.
Glacier ice flux is a key indicator of mass balance; therefore, accurate monitoring of ice dynamics is essential. Satellite-based methods are widely used for glacier velocity measurements but are limited by satellite revisit frequency. This study explores using seismic station internal GPS data to track glacier movement. While less accurate than differential GPS, this method offers high-temporal resolution as a by-product where seismic stations are deployed. Using a seismic station on Borebreen, Svalbard, we show that internal GPS provides reliable surface velocity measurements. When compared with satellite-inferred velocities, the results show a strong correlation, suggesting that the internal GPS, despite its inherent uncertainty, can serve as an efficient tool for glacier velocity monitoring. The high-temporal sampling reveals short-term dynamics of speed-up events and underscores the role of meltwater in driving these processes. This approach augments glacier observation networks at no additional cost.
Jerry Ellig was a unique character and a great economist. He believed in one thing, using economic analysis to help solve problems. He became an expert at Regulatory Impact Analyses and how they helped governments to choose the best option to do just that, all the while recognizing the problems that government has with necessarily much less information than markets. He believed in holding governments to account for achieving results including periodic lookbacks to see what they were doing. What was great about Jerry is that he had fun doing all of this both on the job and at his beloved Tiki bars.
Ultrasound-guided wire localisation may improve intra-operative identification and outcomes of non-palpable cervical lymphadenopathy in a previously treated neck. We undertook a literature search and present our case series to determine the safety and efficacy of ultrasound-guided wire localisation.
Methods
A search of databases up to 29 April 2024 was performed. At our tertiary centre, ultrasound-guided wire localisation was utilised for 20 patients with cervical lymphadenopathy between February 2021 and April 2024.
Results
Seventeen studies with a combined total of 92 patients were identified, with one complication reported. Within our case series, all 20 patients had accurate lesion localisation using ultrasound-guided wire localisation and none required repeat operations.
Conclusion
Ultrasound-guided wire localisation is a safe and cost-effective technique for lesions in an otherwise difficult area to operate, providing confidence to the multidisciplinary team, particularly where histopathology indicates benignity. Surgical outcomes do not appear worse than outcomes without ultrasound-guided wire localisation. We advocate its use provided appropriate patient selection is considered.
Shanghai in the early 1930s was a city teeming with intrigue and decadence. Amidst this backdrop, Doctor B, a flamboyant physician, invites writer Shimura Yōhei on a late-night excursion to the mysterious Fortune Club. Promising an experience unlike any other, Doctor B leads Shimura through the shadowy streets to a lavish dance hall, a sanctuary for Shanghai's international elite. As the night unfolds, Shimura is mesmerized by the club's opulence and the eclectic mix of patrons. However, a chance encounter with a Portuguese dancer named Kate unveils a sinister secret lurking beneath the surface. Guided by a cryptic hint, Shimura ventures into the dark and eerie basement, where he discovers a hidden world of unimaginable horror—a prison for women ensnared in a web of exploitation and despair. Itō's work critiques capitalist exploitation and the underclass's struggles, challenging the superficial and exoticized depictions of Shanghai by his contemporaries. Through gripping narratives that reveal the exploitation beneath Shanghai's glamorous surface, Itō aimed to counter the prevailing bourgeois narratives and expose the harsh realities of life in Shanghai, presenting a nuanced critique of social inequalities and the revolutionary potential of the city's conflicts.
Most people with mental illness in low and middle-income countries (LMICs) do not receive biomedical treatment, though many seek care from traditional healers and faith healers. We conducted a qualitative study in Buyende District, Uganda, using framework analysis. Data collection included interviews with 24 traditional healers, 20 faith healers, and 23 biomedical providers, plus 4 focus group discussions. Interviews explored treatment approaches, provider relationships, and collaboration potential until theoretical saturation was reached. Three main themes emerged: (1) Biomedical providers’ perspectives on traditional and faith healers; (2) Traditional and faith healers’ views on biomedical providers; and (3) Collaboration opportunities and barriers. Biomedical providers viewed faith healers positively but traditional healers as potentially harmful. Traditional and faith healers valued biomedical approaches while feeling variably accepted. Interest in collaboration existed across groups but was complicated by power dynamics, economic concerns, and differing mental illness conceptualizations. Traditional healers and faith healers routinely referred patients to biomedical providers, though reciprocal referrals were rare. The study reveals distinct dynamics among providers in rural Uganda, with historical colonial influences continuing to shape relationships and highlighting the need for integrated, contextually appropriate mental healthcare systems.
Symptoms of complex post-traumatic stress disorder (cPTSD) may play a role in the maintenance of psychotic symptoms. Network analyses have shown interrelationships between post-traumatic sequelae and psychosis, but the temporal dynamics of these relationships in people with psychosis and a history of trauma remain unclear. We aimed to explore, using network analysis, the temporal order of relationships between symptoms of cPTSD (i.e. core PTSD and disturbances of self-organization [DSOs]) and psychosis in the flow of daily life.
Methods
Participants with psychosis and comorbid PTSD (N = 153) completed an experience-sampling study involving multiple daily assessments of psychosis (paranoia, voices, and visions), core PTSD (trauma-related intrusions, avoidance, hyperarousal), and DSOs (emotional dysregulation, interpersonal difficulties, negative self-concept) over six consecutive days. Multilevel vector autoregressive modeling was used to estimate three complementary networks representing different timescales.
Results
Our between-subjects network suggested that, on average over the testing period, most cPTSD symptoms related to at least one positive psychotic symptom. Many average relationships persist in the contemporaneous network, indicating symptoms of cPTSD and psychosis co-occur, especially paranoia with hyperarousal and negative self-concept. The temporal network suggested that paranoia reciprocally predicted, and was predicted by, hyperarousal, negative self-concept, and emotional dysregulation from moment to moment. cPTSD did not directly relate to voices in the temporal network.
Conclusions
cPTSD and positive psychosis symptoms mutually maintain each other in trauma-exposed people with psychosis via the maintenance of current threat, consistent with cognitive models of PTSD. Current threat, therefore, represents a valuable treatment target in phased-based trauma-focused psychosis interventions.
Sickle cell disease (SCD) is hallmarked by recurrent episodes of severe acute pain and the risk for chronic pain. Remote peer support programs have been shown to effectively improve health outcomes for many chronic conditions. The objective of this study was to examine the feasibility and acceptability of an online peer mentoring program (iPeer2Peer program) for adolescents with SCD.
Method:
A waitlist pilot randomized controlled trial was conducted. Adolescents randomized to the intervention group were matched with trained peer mentors (19–25 years; successfully managing their SCD), consisting of up to 10 sessions of approximately 30-min video calls over a 15-week period. The control group received standard care. The primary outcomes were rates of accrual, withdrawal, and adherence to iP2P program/protocol, with secondary outcomes identifying topics of mentorship–mentee conversations through qualitative analysis.
Results:
Twenty-eight participants (14 intervention; 14 control) were randomized to the study (mean age: 14.8 ± 1.7 years; 57% female). Accrual rate was 80% (28/35) and withdrawal rate was 18% (5/28), with 28% (4/14) adhering to the iP2P program; however, 71% (10/14) of adolescents in the intervention completed at least one call. Based on content analysis of 75 mentor–mentee calls, three distinct content categories emerged: impact of SCD, self-management, transitioning to adulthood with SCD, and general topics.
Conclusion:
The results from this pilot study suggest that the current iteration of the iP2P SCD program lacks feasibility. Future research with the iP2P program can focus improved engagement via personalized mentoring, variable communication avenues, and an emphasis on gender.
Over the last several years, the study of implicit bias has taken the world by storm. Implicit bias was even mentioned by the then candidate, Hillary Clinton, in a presidential debate in 2016. She went on to claim that implicit bias can have deadly consequences when Black men encounter law enforcement (for example, see Correll et al., 2002; Correll et al., 2007; Eberhardt et al., 2004). The controversy over police shootings of Black men and women has only intensified as evidenced by public outcry over the murder of George Floyd on May 25, 2020 and increasing public support for the “Black Lives Matter” movement and its calls for liberty, justice, and freedom (Cohn & Quealy, 2020). These current events are but one reason why the study of implicit bias has so captivated the attention of the larger public: reducing it seems to have the potential to solve real-world problems. One idea is that if police officers were made aware of their implicit bias or participated in training workshops to reduce implicit bias, then perhaps fewer Black people would end up dead, arrested, or disproportionately sentenced to receive the death penalty (Baumgartner et al., 2014; Eberhardt, 2020).
We make theoretical comparisons among five coefficients—Cronbach’s α, Revelle’s β, McDonald’s ωh, and two alternative conceptualizations of reliability. Though many end users and psychometricians alike may not distinguish among these five coefficients, we demonstrate formally their nonequivalence. Specifically, whereas there are conditions under which α, β, and ωh are equivalent to each other and to one of the two conceptualizations of reliability considered here, we show that equality with this conceptualization of reliability and between α and ωh holds only under a highly restrictive set of conditions and that the conditions under which β equals ωh are only somewhat more general. The nonequivalence of α, β, and ωh suggests that important information about the psychometric properties of a scale may be missing when scale developers and users only report α as is almost always the case.
Inference is considered for the marginal distribution of X, when (X, Y) has a truncated bivariate normal distribution. The Y variable is truncated, but only the X values are observed. The relationship of this distribution to Azzalini's “skew-normal” distribution is obtained. Method of moments and maximum likelihood estimation are compared for the three-parameter Azzalini distribution. Samples that are uniformative about the skewness of this distribution may occur, even for large n. Profile likelihood methods are employed to describe the uncertainty involved in parameter estimation. A sample of 87 Otis test scores is shown to be well-described by this model.
There are three fundamental problems in Sijtsma (Psychometrika, 2008): (1) contrary to the name, the glb is not the greatest lower bound of reliability but rather is systematically less than ωt (McDonald, Test theory: A unified treatment, Erlbaum, Hillsdale, 1999), (2) we agree with Sijtsma that when considering how well a test measures one concept, α is not appropriate, but recommend ωt rather than the glb, and (3) the end user needs procedures that are readily available in open source software.
Formulas for the standard error of measurement of three measures of change—simple difference scores, residualized difference scores, and the measure introduced by Tucker, Damarin, and Messick—are derived. Equating these formulas by pairs yields additional explicit formulas which provide a practical guide for determining the relative error of the three measures in any pretest-posttest design. The functional relationship between the standard error of measurement and the correlation between pretest and posttest observed scores remains essentially the same for each of the three measures despite variations in other test parameters (reliability coefficients, standard deviations), even when pretest and posttest errors of measurement are correlated.
Childhood bullying is a public health priority. We evaluated the effectiveness and costs of KiVa, a whole-school anti-bullying program that targets the peer context.
Methods
A two-arm pragmatic multicenter cluster randomized controlled trial with embedded economic evaluation. Schools were randomized to KiVa-intervention or usual practice (UP), stratified on school size and Free School Meals eligibility. KiVa was delivered by trained teachers across one school year. Follow-up was at 12 months post randomization. Primary outcome: student-reported bullying-victimization; secondary outcomes: self-reported bullying-perpetration, participant roles in bullying, empathy and teacher-reported Strengths and Difficulties Questionnaire. Outcomes were analyzed using multilevel linear and logistic regression models.
Findings
Between 8/11/2019–12/02/2021, 118 primary schools were recruited in four trial sites, 11 111 students in primary analysis (KiVa-intervention: n = 5944; 49.6% female; UP: n = 5167, 49.0% female). At baseline, 21.6% of students reported being bullied in the UP group and 20.3% in the KiVa-intervention group, reducing to 20.7% in the UP group and 17.7% in the KiVa-intervention group at follow-up (odds ratio 0.87; 95% confidence interval 0.78 to 0.97, p value = 0.009). Students in the KiVa group had significantly higher empathy and reduced peer problems. We found no differences in bullying perpetration, school wellbeing, emotional or behavioral problems. A priori subgroup analyses revealed no differences in effectiveness by socioeconomic gradient, or by gender. KiVa costs £20.78 more per pupil than usual practice in the first year, and £1.65 more per pupil in subsequent years.
Interpretation
The KiVa anti-bullying program is effective at reducing bullying victimization with small-moderate effects of public health importance.
Funding
The study was funded by the UK National Institute for Health and Care Research (NIHR) Public Health Research program (17-92-11). Intervention costs were funded by the Rayne Foundation, GwE North Wales Regional School Improvement Service, Children's Services, Devon County Council and HSBC Global Services (UK) Ltd.
Motor neuron disease (MND) is a progressive, fatal, neurodegenerative condition that affects motor neurons in the brain and spinal cord, resulting in loss of the ability to move, speak, swallow and breathe. Acceptance and commitment therapy (ACT) is an acceptance-based behavioural therapy that may be particularly beneficial for people living with MND (plwMND). This qualitative study aimed to explore plwMND’s experiences of receiving adapted ACT, tailored to their specific needs, and therapists’ experiences of delivering it.
Method:
Semi-structured qualitative interviews were conducted with plwMND who had received up to eight 1:1 sessions of adapted ACT and therapists who had delivered it within an uncontrolled feasibility study. Interviews explored experiences of ACT and how it could be optimised for plwMND. Interviews were audio recorded, transcribed and analysed using framework analysis.
Results:
Participants were 14 plwMND and 11 therapists. Data were coded into four over-arching themes: (i) an appropriate tool to navigate the disease course; (ii) the value of therapy outweighing the challenges; (iii) relevance to the individual; and (iv) involving others. These themes highlighted that ACT was perceived to be acceptable by plwMND and therapists, and many participants reported or anticipated beneficial outcomes in the future, despite some therapeutic challenges. They also highlighted how individual factors can influence experiences of ACT, and the potential benefit of involving others in therapy.
Conclusions:
Qualitative data supported the acceptability of ACT for plwMND. Future research and clinical practice should address expectations and personal relevance of ACT to optimise its delivery to plwMND.
Key learning aims
(1) To understand the views of people living with motor neuron disease (plwMND) and therapists on acceptance and commitment therapy (ACT) for people living with this condition.
(2) To understand the facilitators of and barriers to ACT for plwMND.
(3) To learn whether ACT that has been tailored to meet the specific needs of plwMND needs to be further adapted to potentially increase its acceptability to this population.
The purpose of this study is to examine the national impact of workplace factors during the SARS-CoV-2 pandemic on mental health experienced by non-physician healthcare workers (HCWs).
Methods
This study consisted of an online sample of non-physician HCWs across the United States, including nurses, medical assistants, and physician assistants. The survey consisted of 93 questions, which included the Perceived Stress Scale, the Center for Epidemiological Studies-Depression (CESD-10) scale, questions about COVID-19 vaccination, sources of trusted information, and questions about work environment and training during the COVID-19 pandemic. Descriptive statistics were used to evaluate associations.
Results
In the final sample (N = 220), (81.8%) reported receiving at least one dose of a COVID vaccine. Most respondents trusted the CDC’s information on the SARS-CoV-2 virus and COVID-19 disease. Several workplace-related factors that occurred during the pandemic were associated with moderate to high levels of perceived stress, fatigue, and higher risk of developing depression. In particular, concerns about exposing others, experiencing discrimination related to their jobs, and caring for patients who died from COVID-19 were associated with increased perceived stress, depression, and fatigue.
Conclusions
The importance of planning by healthcare facilities should include planning for workplace factors associated with poor mental health among all HCWs.
Post-traumatic stress disorder (PTSD) has been shown to predict psychotic symptomology. However, few studies have examined the relative contribution of PTSD compared to broader post-traumatic sequelae in maintaining psychosis. Complex PTSD (cPTSD), operationalized using ICD-11 criteria, includes core PTSD (intrusions, avoidance, hyperarousal) as well as additional “disturbances of self-organisation” (DSO; emotional dysregulation, interpersonal difficulties, negative self-concept) symptoms, more likely to be associated with complex trauma histories. It was hypothesized that DSOs would be associated with positive psychotic symptoms (paranoia, voices, and visions) in daily life, over and above core PTSD symptoms.
Methods
This study (N = 153) employed a baseline subsample of the Study of Trauma And Recovery (STAR), a clinical sample of participants with comorbid post-traumatic stress and psychosis symptoms. Core PTSD, DSO and psychosis symptoms were assessed up to 10 times per day at quasi-random intervals over six consecutive days using Experience Sampling Methodology.
Results
DSOs within the preceding 90 min predicted paranoia, voices, and visions at subsequent moments. These relationships persisted when controlling for core PTSD symptoms within this timeframe, which were themselves significant. The associations between DSOs and paranoia but not voices or visions, were significantly stronger than those between psychosis and core PTSD symptoms.
Conclusions
Consistent with an affective pathway to psychosis, the findings suggest that DSOs may be more important than core PTSD symptoms in maintaining psychotic experiences in daily life among people with comorbid psychosis and cPTSD, and indicate the potential importance of addressing broad post-traumatic sequelae in trauma-focused psychosis interventions.