62 research outputs found

    New neutron-rich nuclei Zr103,104 and the A100 region of deformation

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    Partial decay schemes in the neutron-rich nuclei Zr103 and Zr104 have been measured for the first time and rotational bands in Zr100 102 have been extended to spins of up to 10Latin small letter h with stroke by observing prompt rays from the spontaneous fisson of Cm248. These nuclei are among the most deformed known at low spin and excitation energy. The level structures in the odd-A nuclei show that the h11/2 intruder orbital plays an important role in stabilizing the deformation in this region

    Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

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    Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries

    Amygdala and orbitofrontal reactivity to social threat in individuals with impulsive aggression

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    Contains fulltext : 55411.pdf (publisher's version ) (Closed access)Background: Converging evidence from animal and human lesion studies implicates the amygdala and orbitofrontal cortex (OFC) in emotional regulation and aggressive behavior. However, it remains unknown if functional deficits exist in these specific brain regions in clinical populations in which the cardinal symptom is impulsive aggression. We have previously shown that subjects diagnosed with intermittent explosive disorder (IED), a psychiatric disorder characterized by reactive aggressive behavior, perform poorly on facial emotion recognition tasks. In this study we employed a social-emotional probe of amygdala-OFC function in individuals with impulsive aggression. Methods: Ten unmedicated subjects with IED and 10 healthy, matched comparison subjects (HC) underwent functional magnetic resonance imaging while viewing blocks of emotionally salient faces. We compared amygdala and OFC reactivity to faces between IED and HC subjects, and examined the relationship between the extent of activation in these regions and extent of prior history of aggressive behavior. Results: Relative to controls, individuals with IED exhibited exaggerated amygdala reactivity and diminished OFC activation to faces expressing anger. Extent of amygdala and OFC activation to angry faces were differentially related to prior aggressive behavior across subjects. Unlike controls, aggressive subjects failed to demonstrate amygdala-OFC coupling during responses to angry faces. Conclusions: These findings provide evidence of amygdala-OFC dysfunction in response to an ecologically-valid social threat signal (processing angry faces) in individuals with a history of impulsive aggressive behavior, and further substantiate a link between a dysfunctional cortico-limbic network and aggression.11 p
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