Enhancing Hydrogen Evolution Reaction through Coalescence-Induced Bubble Departure on Patterned Gold-Silicon Microstrip Surfaces.

Hydrogen bubble adhesion to the electrode presents a major obstacle for green hydrogen generation via the hydrogen evolution reaction (HER) as it would induce undesired overpotential and undermine the reaction efficiency by reducing reaction area, increasing transport resistance, and creating an undesired ion concentration gradient. While electrodes with aerophobic/hydrophilic surfaces have been developed to facilitate bubble detachment, they primarily rely on micro- and nanostructured catalyst surfaces to enhance buoyance-induced bubble departure. Here, we demonstrate that introducing nonreactive yet more hydrophilic surfaces can promote coalescence-induced bubble departure, thereby significantly reducing the transport overpotential and improving HER performance.

Estimating the Proportion of Telehealth-Able United States Emergency Department Visits.

Study Objective: We use national emergency department (ED) data to identify the proportion of "telehealth-able" ED visits, defined as potentially conductible by Video Only or Video Plus (with limited outpatient testing).

Methods: We used ED visits by patients 4 years of age and older from the 2019 National Hospital Ambulatory Medical Care Survey and applied survey weighting for national representativeness. Two raters categorized patient-described Reasons for Visit (RFV) as telehealth-able (yes, no, uncertain) for both Video Only and Video Plus visits.

Age-Related Ventricular Tachycardia Substrate Characteristics for Repaired Tetralogy of Fallot Before Transcatheter Pulmonary Valve Placement.

Background: Ventricular tachycardia (VT) substrate characteristics before transcatheter pulmonary valve replacement (TPVR) in repaired tetralogy of Fallot (rTOF) are unknown.

Objectives: In this study, the authors sought to evaluate substrates for sustained monomorphic VT before TPVR in rTOF.

Methods: Retrospective (2017 to 2021) and prospective (commencing 2021) rTOF patients with native right ventricular outflow tract referred for electrophysiology study (EPS) before TPVR were included.

Percutaneous VT Ablation via RA-to-LV Access in Patients With Double Mechanical Valves: A Multicenter Registry.

Background: In patients with mechanical aortic and mitral valves requiring catheter ablation of ventricular tachycardia (VT), a technique for access from the right atrium (RA) to the left ventricle (LV) via puncture of the inferoseptal process of the LV was previously described in a single-center series.

Objectives: This study sought to report the multicenter experience of VT ablation using this novel LV access approach.

Methods: We assembled a multicenter registry of patients with double mechanical valves who underwent VT ablation with RA-to-LV access.

A Retrospective Cohort Study of Transgender Adolescents' Gender-Affirming Hormone Discontinuation.

Purpose: To understand the rate of, and reasons for, discontinuation of gender-affirming hormones (GAH) in transgender adolescents.

Methods: Retrospective cohort study of individuals starting GAH between January 2007 and December 2022. Individuals were included if they were diagnosed with gender dysphoria, were prescribed GAH, and took GAH continuously for a minimum of 6 months.

Emotional Health of Transgender Youth 24 Months After Initiating Gender-Affirming Hormone Therapy.

Purpose: Limited data exist about the emotional health of transgender youth, either before or after initiation of gender-affirming hormone (GAH). The objectives were: (1) Investigate and verify the factor structure of the National Institutes of Health Toolbox Emotional Battery (NIHTB-EB) among trans and non-binary (TNB) youth; (2) Examine changes in emotional health over 24 months of GAH treatment; and (3) Examine the extent to which changes in emotional health were associated with improved appearance congruence (AC).

Methods: Study respondents were from Trans Youth Care - United States (TYCUS) study, an observational, prospective, longitudinal study of adolescents initiating GAH enrolled between 2016 and 2019.

Risk of cardiovascular disease following degarelix versus gonadotropin-releasing hormone agonists in patients with prostate cancer: a systematic review and meta-analysis.

Background: Prostate cancer treatment involves hormonal therapies that may carry cardiovascular risks, particularly for long-term use. Gonadotropin-releasing hormone (GnRH) antagonists, such as degarelix, may offer advantages over agonists, but comprehensive comparative cardiovascular outcomes are not well established. This study aimed to systematically review and analyze the cardiovascular safety profiles of degarelix compared to those of traditional GnRH agonists, providing critical insights for optimizing treatment strategies.

Dissection of type 2 diabetes: a genetic perspective.

Diabetes is a leading cause of global mortality and disability, and its economic burden is substantial. This Review focuses on type 2 diabetes, which makes up 90-95% of all diabetes cases. Type 2 diabetes involves a progressive loss of insulin secretion often alongside insulin resistance and metabolic syndrome.

Flusion: Integrating multiple data sources for accurate influenza predictions.

Over the last ten years, the US Centers for Disease Control and Prevention (CDC) has organized an annual influenza forecasting challenge with the motivation that accurate probabilistic forecasts could improve situational awareness and yield more effective public health actions. Starting with the 2021/22 influenza season, the forecasting targets for this challenge have been based on hospital admissions reported in the CDC's National Healthcare Safety Network (NHSN) surveillance system. Reporting of influenza hospital admissions through NHSN began within the last few years, and as such only a limited amount of historical data are available for this target signal.

Diversifying the Surgical Workforce: Understanding Barriers to Inform Solutions.

Objectives: Race and gender concordance between physicians and patients is associated with reductions in healthcare disparities. However, the diversity of the medical workforce does not mirror the population; some of the greatest deficiencies exist in the surgical workforce. We conducted a pilot study focused on early recruitment of diverse college students in our region, with a concurrent needs assessment of their specific barriers to entering the field of surgery.

Correlating autonomic physiology with symptoms of autonomic dysreflexia after spinal cord injury.

Background: Individuals with spinal cord injury (SCI) commonly have autonomic dysreflexia (AD) with increased sympathetic activity. After SCI, individuals have decreased baroreflex sensitivity and increased vascular responsiveness.

Objective: To evaluate the relationship between baroreflex and blood vessel sensitivity with AD symptoms.

Extended Post-Operative Antibiotic Usage Does Not Reduce Surgical Site Infections after Spinal Surgery.

Currently there is not a clear basis of evidence for post-operative antibiotic duration in spine surgery. A better understanding of risk factors and proper dosing for antibiotics will help improve outcomes and further define appropriate antibiotic use. A single-center retrospective cohort study of all patients undergoing spinal fusions and/or decompressions between January 1, 2018, and July 1, 2023 was performed.

Recent clinical and mechanistic insights into vitiligo offer new treatment options for cell-specific autoimmunity.

Vitiligo is an autoimmune disease that has been recognized, stigmatized, and treated for millennia. Recent translational research has revealed key mechanisms of disease, including cellular stress, innate immune activation, T cell-mediated elimination of melanocytes from the skin resulting in clinically apparent white spots, as well as stem cell regeneration that reverses established lesions. Many of these pathways have been targeted therapeutically, leading to the first FDA-approved medication to reverse the disease, with many more in clinical trials.

No bones about it: regulatory T cells promote fracture healing.

Regulatory T cells (Tregs) are increasingly being recognized for their role in promoting tissue repair. In this issue of the JCI, Chen et al. found that Tregs at the site of bone injury contribute to bone repair.

Seizure outcomes after resection of temporal encephalocele in patients with drug-resistant epilepsy: A systematic review and meta-analysis.

Objective: Temporal encephaloceles (TEs) are seen in patients with drug-resistant epilepsy (DRE); yet they are also common incidental findings. Variability in institutional pre-surgical epilepsy practices and interpretation of epileptogenic network localization contributes to bias in existing epilepsy cohorts with TE, and therefore the relevance of TE in DRE remains controversial. We sought to estimate effect sizes and sample sizes necessary to demonstrate clinically relevant improvements in seizure outcome with different surgical approaches.

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.