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.
Rational choice theories belong to the most important building blocks of 20th century economics. Their usefulness to model human behaviour has been extensively debated in modern social science and beyond. While some have argued that rational choice theories should be applied to a broad range of political and social phenomena, the rise of behavioural economics questions whether they are appropriate at all for understanding economic behaviour. Conversations on Rational Choice sheds light on what is actually at stake in these debates. In 23 conversations, some of the most prominent protagonists from economics, psychology, and philosophy discuss their individual perspectives on the nature, possible justifications, and epistemic limitations of rational choice theories. Offering a comprehensive assessment of the value of rational choice theories in producing knowledge in economics, these conversations lay the ground for a more nuanced appraisal of rational choice theories from a practical viewpoint.
Prior research indicates that both structural and functional networks are compromised in older adults experiencing depressive symptoms. However, the potential impact of abnormal interactions between brain structure and function remains unclear. This study investigates alterations in structural–functional connectivity coupling (SFC) among older adults with depressive symptoms, and explores how these changes differ depending on the presence of physiological comorbidities.
Methods
We used multimodal neuroimaging data (dMRI/rs-fMRI) from 415 older adults with depressive symptoms and 415 age-matched normal controls. Subgroups were established within the depressive group based on the presence of hypertension, hyperlipidemia, diabetes, cerebrovascular disease, and sleep disorders. We examined group and subgroup differences in SFC and tracked its alterations in relation to symptom progression.
Results
Older adults with depressive symptoms showed significantly increased SFC in the ventral attention network compared with normal controls. Moreover, changes in SFC within the subcortical network, especially in the left amygdala, were closely linked to symptom progression. Subgroup analyses further revealed heterogeneity in SFC changes, with certain physiological health factors, such as metabolic diseases and sleep disorders, contributing to distinct neural mechanisms underlying depressive symptoms in this population.
Conclusions
This study identifies alterations in SFC related to depressive symptoms in older adults, primarily within the ventral attention and subcortical networks. Subgroup analyses highlight the heterogeneous SFC changes associated with metabolic diseases and sleep disorders. These findings highlight SFC may serve as potential markers for more personalized interventions, ultimately improving the clinical management of depression in older adults.
Islands of fertility, patches of locally enhanced soil conditions, play a key role in increasing productivity in dryland regions. The fertile island effect (FIE) influences a range of variables including nutrient availability, soil moisture and microbial activity. While most examinations of the FIE focus on islands created by perennial plants at local scales, the effect may vary across spatial scales and under cover types including shrubs, grasses and biological soil crusts (biocrusts). This study explored differences in the FIE between soil depths across landforms and patch types for biogeochemical factors (nutrient availability) and biotic properties (microbial community structure, extracellular enzymatic activity). The FIE differed across landforms and soil depths, suggesting that soil geomorphology may play a major role in predicting soil fertility. Additionally, the FIE of enzymatic activity and available nutrients varied by patch type consistently across landforms, suggesting patch-scale processes influencing nutrient availability and acquisition are independent of landscape-scale differences. We show that biocrusts can have an FIE similar to that of shrubs and grasses, an underexplored control of variability and productivity in drylands. These findings necessitate further work to improve our understanding of how ecosystem processes vary across scales to influence patterns of productivity and soil fertility.
This paper introduces the Chinese Learner English Corpus (CLEC), comprising argumentative texts written by Chinese lower and upper secondary school students. CLEC expands learner corpus research by including texts from intermediate-level learners and rich metadata on their backgrounds, including engagement with self-initiated, so-called Extramural English (EE) activities outside the classroom. To illustrate potential uses, two case studies are presented. The first uses a keyword analysis to reveal thematic and stylistic differences between CLEC and its Swedish counterpart, SLEC, highlighting linguistic priorities related to distinct learning contexts. The second investigates lexical bundles associated with gaming, demonstrating how EE engagement might influence learners’ use of multiword units. Freely available online, CLEC facilitates contrastive interlanguage analysis and supports further research into L2 learning and use, particularly regarding the role of language exposure. The corpus is also a valuable resource for teacher trainees aiming to deepen their understanding of SLA processes.
Tricuspid valve repair in paediatric infective endocarditis using a right axillary thoracotomy approach has never been reported. This report describes the minimally invasive treatment of infective endocarditis using this approach in a previously healthy paediatric patient. The patient underwent successful tricuspid valve repair and was discharged with an outpatient antibiotic regimen. He remains well seven months postoperatively.
Immersive technologies, such as augmented reality (AR) and virtual reality (VR), allow people to immerse themselves in a complete virtual environment, or enhance the physical world with digital elements. Also referred to as extended reality (XR), these technologies create experiences that feel real, whether fully or partially virtual. The impact of XR on human rights and society is linked to a large-scale consumer breakthrough, which could pose significant human rights risks. This article discusses these risks through the lens of four public values rooted in human rights instruments: privacy, autonomy, non-discrimination and a clean and healthy environment. It highlights the urgency for governments to protect and companies to respect the rights of both XR users and non-users. The aim is to initiate discussions on early interventions, avoiding missteps seen during the rise of social media, when benefits were encouraged, while risks were overlooked.
This paper investigates how Assyrian kings protected their material legacies for posterity and why in some prominent instances such protections failed, with a particular focus on the palaces of Kalḫu and Nineveh during the Sargonid Period. I approach this question through the lens of intergenerational reciprocity; Assyrian worldviews provided various channels through which past, present, and future kings could engage with one another in reciprocal and coercive relationships across time. Unlike curses and blessings, which were relatively easy for Assyrian kings to disregard, these reciprocal relationships provided more compelling incentives for rulers to honour and preserve their predecessors’ material legacies. However, practical or ideological concerns would sometimes result in the need to alter buildings in ways that damaged the material legacy of a past ruler. In some of these instances, steps were taken to symbolically compensate the past ruler in question for this damage. In this fashion, rulers were able to negotiate the ideological tension between tradition and innovation to preserve historical memory while adapting living cultural heritage to meet current needs.
Urgent care locations remain a target for antimicrobial stewardship initiatives due to high rates of inappropriate antibiotic prescribing, particularly for respiratory tract infections. This study evaluated the impact of an antimicrobial stewardship bundle at urgent care sites on appropriate antibiotic prescriptions.
Design:
Retrospective, observational, pre- and post-analysis.
Setting:
Four advanced urgent care sites affiliated with an academic medical institution.
Patients:
Urgent care patients evaluated for respiratory tract infections.
Intervention:
An antimicrobial stewardship bundle including clinician-signed stewardship posters, over-the-counter medication prescription pads, and an educational campaign was introduced to advanced urgent care sites from October to November 2024. Respiratory tract infections were tiered by antibiotic appropriateness (1 = always appropriate; 2 = sometimes appropriate; 3 = never appropriate). Adults with tier 2 or 3 diagnoses from December 2023 to January 2024 (pre-group) and December 2024 to January 2025 (post-group) were included. The primary outcome was proportion of appropriate antibiotic prescriptions.
Results:
Two hundred and seventy-five patients with tier 2 and tier 3 indications were screened; 200 patients were included. Following implementation of the antimicrobial stewardship bundle, there was no significant difference in rates of appropriate antibiotic prescriptions for tier 2 and tier 3 respiratory infections between the pre- and post-groups (76% vs 74%, respectively; P = 0.68). After implementation, more patients received appropriate antibiotics for tier 2 indications (77% vs 95%; p = 0.13). The most prescribed antibiotic agents amongst both groups were amoxicillin-based antibiotics (15%) and azithromycin (15%).
Conclusion:
This study highlights challenges and opportunities for outpatient antimicrobial stewardship practices.
Childhood irritability and harsh parenting are associated with youth suicide attempts. Parents’ harsh reactions have been associated with children’s irritable behavior. While studies have shown individual associations of irritability and parenting behaviors with suicide risk, few have considered these factors jointly. We aimed to identify profiles of children based on irritability and parenting during childhood and examine their associations with youth suicide attempt.
Methods
Participants (N = 1626) were from the Québec Longitudinal Study of Child Development. Mothers reported on childhood irritability, harsh parenting, and positive parenting between ages 3.5 and 8; youth self-reported suicide attempt between ages 13 and 23.
Results
We identified four profiles based on the joint development of irritability and parenting during childhood: (1) low irritability, low harsh parenting, and high positive parenting (30.3%); (2) moderate irritability, moderate harsh parenting, and high positive parenting (28.4%); (3) moderate irritability, moderate harsh parenting, and low positive parenting (26.6%); and (4) high irritability, high harsh parenting, and low positive parenting (14.8%). In logistic regression analyses, only children in the high irritability, high harsh parenting, and low positive parenting profile had higher odds of attempting suicide (OR = 2.51; 95% CI = 1.55–4.09) compared to those in the low irritability, low harsh parenting, and high positive parenting profile. This association remained significant (OR = 1.80; 95% CI = 1.03–3.15) in models adjusting for covariates.
Conclusion
Children with chronically high irritability were also those experiencing the harshest parenting and the least positive parenting, as well as those most at risk of suicide attempt. Targeting both child and parental behavior may maximize suicide prevention efforts among children with high irritability.
CBT for psychosis is an established and evolving psychological therapy. Historical controversies about the nature of psychosis persist, and more recent debates about the outcome literature lack precision, muddying the waters further. Based on our experience as clinicians, teachers and supervisors, and following NHS and national lead roles, we describe ten common misconceptions about CBT for psychosis. These include misconceptions about the evidence, the focus of therapy, ‘thinking positively’, and the nature of collaboration and the therapeutic relationship. We refute these misconceptions based on current theory, research, and best practice guidelines. We highlight the need to get out of the clinic room, measure the impact of therapy on personal recovery and autonomy, and meet training and governance requirements. It is essential that clinicians, service leads, and our professional bodies uphold core standards of care if people with psychosis are to have access to high quality CBT of the standard we would be happy to see offered to our own family and friends.
Key learning aims
(1) To recognise common misconceptions about CBT for psychosis.
(2) To counter these misconceptions theoretically and empirically – to inform ourselves, colleagues and service leads committed to ensuring high quality CBT for psychosis.
(3) To highlight statutory and professional body responsibilities to ensure parity of esteem for people with psychosis, who deserve high quality, ‘full dose’ treatments delivered by appropriately trained clinicians, and supported by robust governance systems, just as we would expect for people with physical health conditions.
To determine the prevalence and severity of anxiety and depression among health care professionals in Khyber Pakhtunkhwa and the impact of gender and professional roles on mental health outcomes.
Methodology
A cross-sectional study was conducted between March and November 2023 using stratified random sampling among health care professionals, including doctors, nurses, paramedics, and emergency staff, across multiple hospitals. The Generalized Anxiety Disorder-7 (GAD-7) and Patient Health Questionnaire-9 (PHQ-9) were used to assess anxiety and depression. Data were analyzed using R/RStudio, employing descriptive statistics, chi-square tests, independent t-tests, Mann-Whitney U tests, and Pearson’s correlation coefficient.
Results
Among 651 participants, 65% were male. Anxiety prevalence was significant, with 42% experiencing minimal anxiety, 35% mild, 16% moderate, and 7.7% severe. Depression prevalence included 10% with no depression with 7.8% moderately severe and 5.9% severe depression. Nurses (40%) and doctors (34%) had the highest depression rates. Females exhibited significantly higher anxiety and depression scores. Anxiety prevalence varied across hospitals (P = 0.024). A strong positive correlation was observed between GAD-7 and PHQ-9 scores.
Conclusion
Mental health challenges among frontline health care workers in Khyber Pakhtunkhwa are substantial, with anxiety and depression particularly prevalent among nurses and doctors. Female workers experience greater psychological distress. We recommend implementation of hospital-based mental health support systems, prioritizing interventions for female staff and high-burden departments. Policies ensuring regular psychological screening and peer support mechanisms are urgently needed.
This study aimed to report the outcomes of patient-specific quality assurance (QA) in spot-scanning proton therapy using a two-dimensional ionisation chamber array and investigate the relationship between gamma passing rate and plan parameters.
Materials and methods:
Patient-specific QA was performed and evaluated by gamma analysis using a 3% dose difference and 2-mm distance-to-agreement with 172 treatment plans in the head and neck, breast, chest, abdominal and pelvic regions. The outcomes of patient-specific quality assurance regarding the gamma passing rate of the treatment sites, monitor unit (MU) per spot, measurement depth, range shifter, number of spots, energy layer and target volume were analysed.
Results:
No significant difference (p = 0·10) in the gamma passing rates between the treatment sites. The gamma passing rate was >98% in all the regions. The overall result of patient-specific QA with the gamma evaluation was 99·1 ± 1·6%. For the MU per spot, range shifter and measurement depth, the gamma passing rate was >98%. The gamma passing rate of the number of spots, energy layer and target volume was >97%.
Conclusion:
Patient-specific QA measurements showed that the gamma passing rate was >98% and was independent of the treatment site, MU per spot, range shifter, number of spots, energy layer and target volume but depend on measurement depth (p < 0·05). A gamma index of 3%, 2 mm forms reasonable criteria for patient-specific QA in spot-scanning proton therapy.
The manufacturing industry, notably the aeronautics sector, involves tasks presenting risks of low back pain. One of the preventive strategies could be the use of passive back exoskeletons, which have demonstrated benefits during activities involving trunk bending. This study aims to evaluate the effects of four passive back exoskeletons on trunk neuromuscular activity, kinematics, and perceived discomfort during polishing tasks simulated in a laboratory setting. Nineteen participants performed four tasks (two static bending tasks and two load-carrying tasks) without and with two soft (CORFOR and BionicBack) and two rigid (BackX and Laevo FLEX) exoskeletons. The results showed varying effects depending on the tested exoskeleton model, beyond the distinction between rigid and soft designs. Reductions in lumbar erector spinae (LES) neuromuscular activity were observed with Laevo FLEX and CORFOR during static tasks compared to the condition without exoskeleton (8–18%; p < .05). However, reductions in LES muscle activity were not significant during load carrying. Biceps femoris neuromuscular activity was significantly lower in the four tasks when using the Laevo FLEX, with reductions ranging from 8 to 17% (p < .01). The two rigid exoskeletons decreased perceived back discomfort across all tasks (p < .05). Finally, the BionicBack exoskeleton significantly altered participants’ kinematics across all four tasks, reducing both trunk range of motion and average flexion (p < .05). The Laevo FLEX exoskeleton was the only one to significantly reduce both neuromuscular activity and perceived back discomfort, while causing no adverse effects, appearing advantageous when polishing in the aeronautical industry.