Flat-bands in translated and twisted bilayer Penrose quasicrystals.

Correlated phases in Moiré materials together with the flat-bands in twisted systems play a central role to explain superconductivity in the new twisted bilayer graphene. In this paper, flat-bands are shown to exist in both translated and twisted bilayer of quasicrystals. Such flat-bands arise for different displacements and twisting angles of two-coupled Penrose lattices where Moiré patterns are also shown.

A POCUS-first pathway to streamline care for children with suspected ileocolic intussusception.

Objectives: As point-of-care ultrasound (POCUS) has emerged as a valuable tool for intussusception screening, this quality improvement study aimed to implement a "POCUS-first" pathway in a Pediatric Emergency Department (ED) to streamline workflow and expedite care for children with suspected intussusception.

Methods: This was a prospective analysis of children diagnosed with ileocolic intussusception in a Pediatric ED between June 2022 and June 2023. The study compared the "POCUS-first" cohort with the group receiving only radiology-performed ultrasound.

Pediatric orbital lesions: neoplastic extraocular soft-tissue lesions.

Pediatric neoplastic extraocular soft-tissue lesions in the orbit are uncommon. Early multimodality imaging work-up and recognition of the key imaging features of these lesions allow narrowing of the differential diagnoses in order to direct timely management. In this paper, the authors present a multimodality approach to the imaging work-up of these lesions and highlight the use of ocular ultrasound as a first imaging modality where appropriate.

Pediatric orbital lesions: bony and traumatic lesions.

Orbital pathologies can be broadly classified as ocular lesions, extraocular soft-tissue pathologies (non-neoplastic and neoplastic), and bony and traumatic lesions. In this paper, we discuss the key imaging features and differential diagnoses of bony and traumatic lesions of the pediatric orbit and globe, emphasizing the role of CT and MRI as the primary imaging modalities. In addition, we highlight the adjunctive role of ocular sonography in the diagnosis of intraocular foreign bodies and discuss the primary role of sonography in the diagnosis of traumatic retinal detachment.

Pediatric orbital lesions: ocular pathologies.

Orbital pathologies can be broadly classified as ocular, extra-ocular soft-tissue (non-neoplastic and neoplastic), osseous, and traumatic. In part 1 of this orbital series, the authors will discuss the differential diagnosis and key imaging features of pediatric ocular pathologies. These include congenital and developmental lesions (microphthalmos, anophthalmos, persistent fetal vasculature, coloboma, morning glory disc anomaly, retinopathy of prematurity, Coats disease), optic disc drusen, infective and inflammatory lesions (uveitis, toxocariasis, toxoplasmosis), and ocular neoplasms (retinoblastoma, retinal hamartoma, choroidal melanoma, choroidal nevus).

A Canadian children's hospital's experience with cystic echinococcosis over 30 years: A case series.

Background: Cystic echinococcosis (CE) or hydatid disease caused by the cestode is an uncommon infection in Canada especially among children. There are limited reports describing the clinical presentation and management in Canadian children.

Methods: The medical records of all children diagnosed with CE at a quaternary paediatric centre in Ontario between January 1988 and August 2021 were retrospectively reviewed.

Pediatric Vascular Anomalies: A Clinical and Radiological Perspective.

According to the International Society for the Study of Vascular Anomalies (ISSVA) classification, vascular anomalies include a diverse range of pathologies, classified as either vascular tumors or vascular malformations. This classification, last revised in 2018, aims to explain the biological basis of vascular lesions and help clinicians to manage the anomalies. In vascular tumors, there are proliferative changes of endothelial cells, while vascular malformations primarily consist of structural vascular abnormalities.

The influence of environmental crisis perception and trait anxiety on the level of eco-worry and climate anxiety.

Eco-anxiety, which refers to the anxiety experienced in response to worsening environmental conditions, is a growing global phenomenon. Climate change anxiety, due to the escalating impact of ongoing climate change, stands out as the most commonly recognized form of eco-anxiety. Nevertheless, numerous uncertainties persist regarding the relationship of this eco-anxiety response to pro-environmental behaviors, as well as its connection with trait anxiety and the perception of the environmental crisis.

Willingness to be vaccinated against COVID-19: the role of risk perception, trust in institutions, and affects.

Introduction: Vaccination is one of the most effective ways to stop the COVID-19 pandemic and prevent severe disease. This study aims to ascertain the determinants of COVID-19 vaccination acceptance in the French population before the vaccine was introduced (France's second lockdown) and during the roll-out of the vaccination campaign (France's third lockdown). We focus on the following as determinants of willingness to be vaccinated: risk perception, affects related to the risk, and trust in political and health institutions.

Antithrombin activity and central venous catheter-associated thrombosis in critically ill children at high risk of bleeding.

Background: Normalization of antithrombin activity may prevent catheter-associated thrombosis in critically ill children at high risk of bleeding.

Objectives: To characterize the temporal pattern of antithrombin activity, assess its association with catheter-associated thrombosis and clinically relevant bleeding, and evaluate its relationship with thrombin generation in these children.

Methods: In this prospective cohort study, critically ill children <18 years old at high risk of bleeding with central venous catheter were eligible.

Altered Temporal Dynamics of Resting-State Functional Magnetic Resonance Imaging in Adolescent-Onset First-Episode Psychosis.

Background: Dynamic functional connectivity (dFC) alterations have been reported in patients with adult-onset and chronic psychosis. We sought to examine whether such abnormalities were also observed in patients with first episode, adolescent-onset psychosis (AOP), in order to rule out potential effects of chronicity and protracted antipsychotic treatment exposure. AOP has been suggested to have less diagnostic specificity compared to psychosis with onset in adulthood and occurs during a period of neurodevelopmental changes in brain functional connections.

Heterogeneous liver on research ultrasound identifies children with cystic fibrosis at high risk of advanced liver disease.

Background: This study examines whether heterogeneous (HTG) pattern on liver ultrasound (US) identifies children at risk for advanced cystic fibrosis liver disease (aCFLD).

Methods: Prospective 6-year multicenter case-controlled cohort study. Children with pancreatic insufficient cystic fibrosis (CF) aged 3-12 years without known cirrhosis underwent screening US.

How regulation strategies protected or worsened emotional experience during France's three lockdowns: Prepandemic versus pandemic comparisons and longitudinal approach.

The COVID-19 pandemic remains hugely challenging, but its impact on emotional experience, especially over time, has often been neglected. The French Government imposed three COVID lockdowns with varying degrees of strictness that induced different types of emotional discomfort and emotion regulation. The present longitudinal study explored affect and emotion regulation strategies in each of these lockdowns, comparing samples assessed before and during the pandemic.

Impact of a culturally sensitive multilingual community outreach model on coronavirus disease 2019 (COVID-19) vaccinations at an urban safety-net community hospital.

We assessed the efficacy of a culturally competent outreach model with promotoras in raising the coronavirus disease 2019 (COVID-19) first-dose vaccination rates in Chicago's at-risk ZIP codes from February through May 2021. Utilizing community members from within target communities may reduce barriers, increase vaccination rates, and enhance COVID-19 prevention.

Health-related Quality of Life in a Prospective Study of Ultrasound to Detect Cystic Fibrosis-related Liver Disease in Children.

Objectives: Cystic fibrosis liver disease (CFLD) begins early in life. Symptoms may be vague, mild, or nonexistent. Progressive liver injury may be associated with decrements in patient health before liver disease is clinically apparent.

Imaging of pediatric extremity soft tissue tumors: A COG Diagnostic Imaging Committee/SPR Oncology Committee White Paper.

Pediatric soft tissue tumors of the extremity include rhabdomyosarcoma and nonrhabdomyosarcoma neoplasms. This manuscript provides consensus-based imaging recommendations for imaging evaluation at diagnosis, during treatment, and following completion of therapy for patients with a soft tissue tumor of the extremity.