Downscaling of Non-Van der Waals Semimetallic WN with Resistivity Preservation.

The bulk phase of transition metal nitrides (TMNs) has long been a subject of extensive investigation due to their utility as coating materials, electrocatalysts, and diffusion barriers, attributed to their high conductivity and refractory properties. Downscaling TMNs into two-dimensional (2D) forms would provide valuable members to the existing 2D materials repertoire, with potential enhancements across various applications. Moreover, calculations have anticipated the emergence of uncommon physical phenomena in TMNs at the 2D limit.

Lessons Learned From the Liver About the Undergraduate to Graduate Medical Education Transition.

The burden of cirrhosis and chronic liver disease is growing, yet there is a projected worsening deficit in hepatology providers. As such, cirrhosis and liver disease have been important inclusions within the core curricula of Internal Medicine. Formal assessments of provider preparedness resulting from the curriculum are lacking though.

Cognitive and Alzheimer's disease biomarker effects of oral nicotinamide riboside (NR) supplementation in older adults with subjective cognitive decline and mild cognitive impairment.

Introduction: Age-associated depletion in nicotinamide adenine dinucleotide (NAD+) concentrations has been implicated in metabolic, cardiovascular, and neurodegenerative disorders. Supplementation with NAD+ precursors, such as nicotinamide riboside (NR), offers a potential therapeutic avenue against neurodegenerative pathologies in aging, Alzheimer's disease, and related dementias. A crossover, double-blind, randomized placebo (PBO) controlled trial was conducted to test the safety and efficacy of 8 weeks' active treatment with NR (1 g/day) on cognition and plasma AD biomarkers in older adults with subjective cognitive decline and mild cognitive impairment.

Cardio-Obstetrics Practice in Latin America: A Regional Survey of General Cardiologists.

Background: Cardiovascular (CV) disease is a leading cause of death in pregnant women globally, especially in low- and middle-income countries including Latin America (LATAM), where there is lack of data on how cardiologists are trained in cardio-obstetrics (CO) and the practice patterns in the care of pregnant patients.

Objectives: The authors aimed to identify CO competency and practice patterns among LATAM general cardiologists.

Methods: An anonymous cross-sectional Google-based electronic survey was sent via email to clinical cardiologists through local American College of Cardiology chapters and CV societies.

Association of Epicardial Adipose Tissue and Ventricular Arrhythmias in Patients With Nonischemic Cardiomyopathy.

Background: Risk stratification for sudden cardiac death (SCD) in patients with nonischemic cardiomyopathy (NICM) remains challenging.

Objectives: This study aimed to investigate the impact of epicardial adipose tissue (EAT) on SCD in NICM patients.

Methods: Our study cohort included 173 consecutive patients (age 53 ± 14 years, 73% men) scheduled for primary prevention implantable cardioverter-defibrillators (ICDs) implantation who underwent preimplant cardiovascular magnetic resonance.

Rheumatic Heart Disease Burden in Africa and the Need to Build Robust Infrastructure.

Rheumatic heart disease (RHD) is an important public health problem in Africa. Mapping the epidemiology of RHD involves elucidating its geographic distribution, temporal trends, and demographic characteristics. The prevalence of RHD in Africa varies widely, with estimates ranging from 2.

PREVENT and Pooled Cohort Equations in Mortality Risk Prediction: National Health and Nutrition Examination Survey.

Background: The Predicting Risk of CVD Events (PREVENT) equations were developed to address limitations of the Pooled Cohort Equations (PCEs) in predicting atherosclerotic cardiovascular disease (ASCVD) risk. The comparative effectiveness of the PREVENT equations versus the PCEs in predicting mortality risk remains unknown.

Objectives: The purpose of this study was to compare the risk discrimination value of the PREVENT equations with the PCEs for predicting mortality.

Associations With Adverse Postoperative Outcomes in Children Undergoing Atrial Septal Defect Closure in Lower-Resource Settings.

Background: Atrial septal defects (ASDs) are a common cause of congenital heart disease worldwide.

Objectives: The purpose of the study was to assess change over time in surgical outcomes for ASD repair and identify patient-level risk factors for adverse postoperative outcomes.

Methods: We analyzed cases of isolated ASD in patients <18 years from 2010 to 2020 from 71 sites participating in the International Quality Improvement Collaborative for Congenital Heart Disease.

Implementation of a Virtual Cardiology Curriculum to Address the Deficit of Cardiovascular Education in Haiti.

Background: Cardiovascular disease (CVD) is the leading cause of death in low- and middle-income countries such as Haiti. Our team has demonstrated in a pilot study the implementation of a virtual cardiology curriculum to address the deficit of cardiology education in Haiti among medicine residents.

Objectives: The objective of this study was to determine if cardiology education can be delivered nationwide in Haiti via a virtual platform with quantifiable improvement.

Vaccination Against Influenza and Pneumococcus During Pretravel Health Consultations in the United States: Interventions and Missed Opportunities.

Background: Infections by and influenza viruses are vaccine-preventable diseases causing great morbidity and mortality. We evaluated pneumococcal and influenza vaccination practices during pre-international travel health consultations.

Methods: We evaluated data on pretravel visits over a 10-year period (1 July 2012 through 31 June 2022) from 31 sites in Global TravEpiNet (GTEN), a consortium of US healthcare facilities providing pretravel health consultations.

Malnutrition and risks of atrial fibrillation recurrence after catheter ablation.

Background: Recent data showed an association between malnutrition and increased all-cause mortality and thromboembolic risk in patients with atrial fibrillation (AF). However, the impact of malnutrition on the clinical outcomes for patients undergoing catheter ablation for AF is still debated. Our study aimed to examine this relationship using all existing available data.

Safety and Efficacy of Metformin for Idiopathic Intracranial Hypertension. A U.S-Based Real-World Data Retrospective Multicenter Cohort Study.

Introduction: Managing idiopathic intracranial hypertension (IIH) is challenging due to limited treatment options. This study evaluates metformin as a potential therapy for IIH, examining its impact on disease outcomes and safety.

Methods: We performed a retrospective cohort study using the TriNetX database, covering data from 2009 to August 2024.

Sulfur Vacancies Limit the Open-Circuit Voltage of SbS Solar Cells.

Antimony sulfide (SbS) is a promising candidate as an absorber layer for single-junction solar cells and the top subcell in tandem solar cells. However, the power conversion efficiency of SbS-based solar cells has remained stagnant over the past decade, largely due to trap-assisted nonradiative recombination. Here we assess the trap-limited conversion efficiency of SbS by investigating nonradiative carrier capture rates for intrinsic point defects using first-principles calculations and Sah-Shockley statistics.

Acceptance and commitment therapy group protocol for caregivers of anxious youth: an open trial pilot study.

Introduction: Anxiety disorders are common, distressing, and impairing for children and families. Cognitive-behavioral interventions targeting the role of family interactions in child anxiety treatment may be limited by lack of attention to antecedents to parental control; specifically, internal parent factors such as experiential avoidance and cognitive fusion. This pilot study evaluates the preliminary efficacy of a group-delivered caregiver treatment program, ACT for Parents of Anxious Children (ACT-PAC) that targets parental experiential avoidance, cognitive fusion, and child internalizing symptoms.

Maternal and psychosocial antecedents of anxiety and depression in extremely low gestational age newborns at age 15 years.

Objectives: The prevalence of many psychiatric symptoms, including anxiety and depression, is higher in individuals born extremely preterm (EP) than in term-born individuals during childhood and adolescence. In this prospective study of adolescents born EP, we examined associations between early-life risk factors (prenatal maternal health conditions, socioeconomic and social factors) and anxiety and depression at 15 years of age.

Methods: We included 682 participants (53.

An implantable system for opioid safety.

Naloxone can effectively rescue victims from opioid overdose, but less than 5% survive due to delayed or absent first responder intervention. Current overdose reversal systems face key limitations, including low user adherence, false positive detection, and slow antidote delivery. Here, we describe a subcutaneously implanted robotic first responder to overcome these challenges.

Laminectomy and fusion better maintains horizontal gaze than laminoplasty in cervical spondylotic myelopathy.

Background: Laminectomy and fusion (LF) and laminoplasty (LP) are common treatments for cervical spondylotic myelopathy and myeloradiculopathy. While both procedures show similar clinical improvement, LF requires bony fusion while LP offers motion preservation. Cervical sagittal alignment and horizontal gaze maintenance are key outcome measures, but their comparative effects between LF and LP remain unclear.

Barriers to Research Faced by High-Income Versus Low- and Middle-Income Country Otolaryngologists and Otolaryngology Residents.

Objective: This study aims to compare research productivity and barriers to research between high-income countries (HICs) and low- and middle-income countries (LMICs) otolaryngologists.

Study Design: Cross-sectional survey.

Setting: International survey.

Emerging trends in cannabis administration for women with chronic pain.

Cannabis use among women who experience chronic pain is on the rise in the United States. However, little is known about women's motives and preferences for cannabis administration. The purpose of this study was to characterize cannabis use among women with chronic pain.

Procedural and Short-Term Outcomes of Carotid Artery Stenting: A Single-Center Experience.

Background Carotid artery stenting is a well-established alternative treatment to carotid endarterectomy for carotid artery stenosis for preventing stroke. This study assessed the procedural and clinical outcomes in patients undergoing carotid artery stenting in a tertiary care center in India. Methods A total of 39 patients underwent carotid artery stenting from January 2022 to December 2023, with different embolic protection devices and carotid stents.