We study a multi-body finite element model of a packing of hydrogel particles using the Flory-Rehner constitutive law to model the deformation of the swollen polymer network. We show that while the dependence of the pressure, , on the effective volume fraction, , is virtually identical to a monolithic Flory material, the shear modulus, , behaves in a non-trivial way. increases monotonically with from zero and remains below about 80% of the monolithic Flory value at the largest we study here.
View Article and Find Full Text PDFContext.—: Complex surgical specimens are associated with complex Current Procedural Terminology (CPT) coding.
Objective.
Neurofibromatosis type 1 (NF1) is a genetic disorder that predisposes individuals to develop benign and malignant tumors of the nerve sheath. Understanding the signatures of cancer stem cells (CSCs) for NF1-associated tumors may facilitate the early detection of tumor progression. Neural crest cells, the cell of origin of NF1-associated tumors, can initiate multiple tumor types, including melanoma, neuroblastoma, and schwannoma.
View Article and Find Full Text PDFHealth care educators may enhance learning with thoughtful incorporation of game elements. Gamification has shown success across various fields in medical education. It has demonstrated deeper engagement by leveraging both intrinsic and extrinsic motivational factors.
View Article and Find Full Text PDFTransplant Proc
November 2024
Social emotional learning (SEL) has a robust evidence basis, but there remains a large gap in literature on the effectiveness of programs across educational settings in low- and middle-income countries and conflict-affected settings. The present study was a pilot trial aimed at evaluating the effects of a classroom based SEL program on dimensions of classroom climate and individual student social emotional skills. In the present study, fourth through sixth grade classrooms in 10 schools (N = 39 teachers, 75.
View Article and Find Full Text PDFObjective: Changes in a patient's reported breast density status (dense vs nondense) trigger modifications in their cancer risk profile and supplemental screening recommendations. This study tracked the frequency and longitudinal sequence of breast density status changes among patients who received serial mammograms.
Methods: This IRB-approved, HIPAA-compliant retrospective cohort study tracked breast density changes among patients who received at least 2 mammograms over an 8-year study period.
The National Disability Insurance Scheme (NDIS) ushered in a transformative era in disability services in Australia, requiring new workforce models to meet evolving participant needs. Therapy Assistants are utilised to increase the capacity of therapy services in areas of workforce shortage. The governance arrangements required to support this emergent workforce have received limited attention in the literature.
View Article and Find Full Text PDFSynthetic cannabinoid receptor agonists (SCRAs) are a growing class of new psychoactive substances (NPS) commonly derived from an -alkylated indole, indazole, or 7-azaindole scaffold. Diversification of this core (at the 3-position) with amide-linked pendant amino acid groups and modular -alkylation (of the indole/indazole/7-azaindole core) ensures that novel SCRAs continue to enter the illicit drug market rapidly. In response to the large number of SCRAs that have been detected, pharmacological evaluation of this NPS class has become increasingly common.
View Article and Find Full Text PDFBackground And Aims: Accurate case discovery is critical for disease surveillance, resource allocation and research. International Classification of Disease (ICD) diagnosis codes are commonly used for this purpose. We aimed to determine the sensitivity, specificity and positive predictive value (PPV) of ICD-10 codes for opioid misuse case discovery in the emergency department (ED) setting.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
October 2023
Large increases in the number of low earth orbit satellites are projected in the coming decades [L. Schulz, K.-H.
View Article and Find Full Text PDFWe study plastic strain during individual avalanches in overdamped particle-scale molecular dynamics (MD) and mesoscale elastoplastic models (EPM) for amorphous solids sheared in the athermal quasistatic limit. We show that the spatial correlations in plastic activity exhibit a short length scale that grows as t^{3/4} in MD and ballistically in EPM, which is generated by mechanical excitation of nearby sites not necessarily close to their stability thresholds, and a longer lengthscale that grows diffusively for both models and is associated with remote marginally stable sites. These similarities in spatial correlations explain why simple EPMs accurately capture the size distribution of avalanches observed in MD, though the temporal profiles and dynamical critical exponents are quite different.
View Article and Find Full Text PDFOver 200 synthetic cannabinoid receptor agonists (SCRAs) have been identified as new psychoactive substances. Effective monitoring and characterization of SCRAs are hindered by the rapid pace of structural evolution. Ahead of possible appearance on the illicit drug market, new SCRAs were synthesized to complete a systematic library of cumyl-indole- (, CUMYL-CPrMICA, CUMYL-CPMICA) and cumyl-indazole-carboxamides (, CUMYL-CPrMINACA, CUMYL-CPMINACA), encompassing butyl, pentyl, cyclopropylmethyl, cyclobutylmethyl, cyclopentylmethyl, and cyclohexylmethyl tails.
View Article and Find Full Text PDFWe develop a mesoscopic model to study the plastic behavior of an amorphous material under cyclic loading. The model is depinning-like and driven by a disordered thresholds dynamics that is coupled by long-range elastic interactions. We propose a simple protocol of "glass preparation" that allows us to mimic thermalization at high temperatures as well as aging at vanishing temperature.
View Article and Find Full Text PDFThis descriptive mixed-methods study was conducted to understand the impact of COVID-19 on undergraduate nursing students' education, perceptions of nursing, stress, and coping. A convenience sample (N = 150) reported high levels of stress with higher stress levels significantly associated with lower coping. The essence of nursing, emotions surrounding the transition to nursing, educational barriers, and faculty-student relationships emerged as themes.
View Article and Find Full Text PDFAust J Rural Health
December 2022
Aim: This paper explores the principles of co-design with Aboriginal and Torres Strait Islander communities by reflecting on the literature, learning from experiences of allied health professionals, and considering how co-design can be applied in rural and remote allied health practice.
Context: This paper has been authored by a working group from Services for Rural and Remote Allied Health (SARRAH). SARRAH is a member-based allied health organisation, working to improve health outcomes for rural and remote Australians.
In many endotherms, a potentially important yet often overlooked mechanism to save energy is the use of the heat generated by active skeletal muscles to replace heat that would have been generated by thermogenesis (i.e. 'activity-thermoregulatory heat substitution').
View Article and Find Full Text PDFPrevious research has established a strong relationship between family system functioning and child adjustment outcomes. However, within the context of Gaza, an evaluation of both maternal and paternal factors associated with adolescent psychological adjustment has not yet been thoroughly evaluated. The current study examines how maternal and paternal trauma exposure, emotional security, and mental health are related to parent-reported scores of adolescent psychological adjustment, while controlling for adolescent trauma exposure and security in the family.
View Article and Find Full Text PDFPurpose: Emerging evidence from rodent studies suggests that high-fat-diet (HFD)-induced obesity is characterized by increased oxidative damage in sperm and testis. However, interventions using micronutrient supplementation to mitigate oxidative damage in obesity have not been extensively studied. This study aimed to investigate the effect of an antioxidant-based micronutrient supplement (added folate, vitamin B, choline, betaine, and zinc) on sperm and testicular oxidative damage in HFD-fed male Sprague Dawley rats.
View Article and Find Full Text PDFPurpose: Neurodevelopmental disorders (NDDs), such as intellectual disability (ID) and autism spectrum disorder (ASD), exhibit genetic and phenotypic heterogeneity, making them difficult to differentiate without a molecular diagnosis. The Clinical Genome Resource Intellectual Disability/Autism Gene Curation Expert Panel (GCEP) uses systematic curation to distinguish ID/ASD genes that are appropriate for clinical testing (ie, with substantial evidence supporting their relationship to disease) from those that are not.
Methods: Using the Clinical Genome Resource gene-disease validity curation framework, the ID/Autism GCEP classified genes frequently included on clinical ID/ASD testing panels as Definitive, Strong, Moderate, Limited, Disputed, Refuted, or No Known Disease Relationship.