Middle Ear Mechanics in the Barn Owl.

The barn owl is a common research subject in auditory science due to its exceptional capacity for high frequency hearing and superb sound source localization capabilities. Despite longstanding interest in the auditory performance of barn owls, the function of its middle ear has attracted remarkably little attention. Here, we report the middle ear transfer function measured by laser Doppler vibrometry and direct measurements of inner ear pressures.

Influence of Experience, Training Frequency, and Sex on Climbing-Specific Grip Force in Rock Climbers of Varying Skill Level.

Rock climbing is a growing sport at both professional and recreational levels. Rock climbing requires specific hand positions with high force outputs to adapt to changing terrain requirements. The purpose of this study was to explore associations between years of climbing experience, the frequency of training, and skill level on force production in 2 different climbing-specific hand positions.

Evaluation of testing approaches for constituent leaching from electric arc furnace (EAF) slags.

Increased usage of electric arc furnace (EAF) slags as soil amendments and surface aggregates raises concerns regarding heavy metal release. However, no standardized leaching characterization approach exists for EAF slags and other industrial materials. This study compares test results for three EAF slags using several testing approaches: (i) total content analysis, (ii) single-batch extractions (i.

The gap between surgeon goal and achieved sagittal alignment in adult cervical spine deformity surgery.

Objective: Malalignment following cervical spine deformity (CSD) surgery can negatively impact outcomes and increase complications. Despite the growing ability to plan alignment, it remains unclear whether preoperative goals are achieved with surgery. The objective of this study was to assess how good surgeons are at achieving their preoperative goal alignment following CSD surgery.

Microfragmented Adipose Tissue Has No Advantage Over Platelet-Rich Plasma and Bone Marrow Aspirate Injections for Symptomatic Knee Osteoarthritis: A Systematic Review and Meta-analysis.

Background: Microfragmented adipose tissue has been proposed for intra-articular treatment of knee osteoarthritis. There are little data comparing the outcomes of treatment between microfragmented adipose tissue and other biological treatments.

Purpose: To perform a systematic review and meta-analysis comparing microfragmented aspirated fat injections to other orthobiologics, hyaluronic acid, and corticosteroid injections for symptomatic knee osteoarthritis.

Comparison of two interferon-gamma release assays for pediatric tuberculosis infection.

Introduction: Identifying tuberculosis infection (TBI) using interferon-gamma release assays (IGRAs) is a primary component of clinical and public health efforts to prevent pediatric tuberculosis. Pediatric data comparing the two IGRAs in the United States are very limited. We compared the performance of the two IGRAs among a large pediatric cohort tested for TBI and assessed whether discordance might be due to quantitative results close to test cut-off values.

Youth Homelessness in Denver, Colorado: 2017-2021.

Objectives: Homelessness is a public health crisis in the United States, yet homelessness prevalence, especially among children and youth, is not well understood. In this study, we use an indirect estimation method known as multiple systems estimation to further evaluate prevalence of youth experiencing homelessness in Denver, Colorado.

Methods: We performed a multiple systems estimation ("capture-recapture") analysis to estimate annual homelessness among youth aged 14 to 17 years in the city and county of Denver, Colorado from 2017 to 2021.

Feasibility of at-Home Sleep Monitoring in Adolescents with and without Concussion.

Background: Poor sleep is associated with longer recovery following adolescent concussion, making the longitudinal assessment of sleep important for monitoring recovery and identifying sleep disruptions. An important consideration for successful monitoring of sleep following concussion is the feasibility and adherence of a given sleep monitoring tool when used in an at-home environment. Understanding the usability of different sleep monitoring tools is essential for determining their applicability for longitudinal assessment in an ecologically valid environment.

Precision Medicine for Pulmonary Vascular Disease: The Future Is Now (2023 Grover Conference Series).

Pulmonary vascular disease is not a single condition; rather it can accompany a variety of pathologies that impact the pulmonary vasculature. Applying precision medicine strategies to better phenotype, diagnose, monitor, and treat pulmonary vascular disease is increasingly possible with the growing accessibility of powerful clinical and research tools. Nevertheless, challenges exist in implementing these tools to optimal effect.

Pseudo-endocrine Disorders: Recognition, Management, and Action.

"Pseudo-endocrine disorders" refer to proposed conditions that have never been scientifically proven to exist but, due to widespread misinformation available on the internet and other media, are relatively commonly diagnosed and treated with equally unproven and sometimes dangerous treatments. Adrenal fatigue is a nonexistent condition that supposedly results from adrenal exhaustion and atrophy due to chronic stress and has been promoted as a potential explanation for a variety of symptoms. Testing consists of nonvalidated online surveys and salivary cortisol profiles while treatment is not evidence-based at best and can be dangerous.

Clinical Pharmacology and Approach to Dose Selection of Emestedastat, a Novel Tissue Cortisol Synthesis Inhibitor for the Treatment of Central Nervous System Disease.

This review demonstrates the value of central pharmacodynamics (PD), including positron emission tomography (PET) and computerized cognitive testing, to supplement pharmacokinetic (PK) and peripheral PD for determining the target dose range for clinical efficacy testing of emestedastat, an 11β-hydroxysteroid dehydrogenase 1 (11β-HSD1) inhibitor. Combined data from 6 clinical trials in cognitively normal volunteers and patients with Alzheimer disease included a population PK model, endocrine PD, a human PET trial (11β-HSD1 brain imaging), and computerized cognitive testing. PK and PET findings were similar in volunteers and patients with Alzheimer disease.

Artificial Intelligence Assistance in Point-of-Care Ultrasound Skill Retention for Novice Users in Space Medicine Scenarios.

Introduction: As humanity progresses further into space, astronauts must be increasingly independent from mission control, especially in high-consequence medical scenarios. The high-utility and low-mass nature of point-of-care ultrasound (POCUS) makes this imaging modality ideal for spaceflight mission deployment. However, POCUS operator skill degrades over time, presenting an operational barrier to continuous, effective use.

Criminal legal penalties, substance use, and overdose: a concept mapping study examining Colorado's criminal legal penalties.

Background: In the USA, many states, including Colorado, have increased criminal penalties for illicit opioid possession, which may alter overdose risk. We aimed to evaluate the relationship between Colorado's increased drug-related criminal legal penalties, risk of overdose, and substance use patterns.

Methods: We used concept mapping - a mixed-methods approach used to develop a conceptual understanding of an issue from a community lens - to engage with people with living and/or lived experience with the criminal legal system, substance use, and/or overdose, their loved ones, and service providers.

Correlation of Mindfulness Practices, Resilience, and Compassion Satisfaction in Hospital-Based Healthcare Workers: A Randomized Controlled Trial.

Goal: A lack of healthcare worker well-being is a serious threat to patient care quality and safety, as well as to the overall operational performance of hospitals in the US healthcare delivery system. Extreme resilience depletion and compassion fatigue are known to negatively influence individual well-being and have contributed to the rise in turnover in the healthcare workforce. The primary aim of this research was to identify interventions that health system leaders can use to combat resilience depletion and exhaustion among healthcare workers.

Antigen experience history directs distinct functional states of CD8 CAR T cells during the antileukemia response.

Although chimeric antigen receptor (CAR) T cells are effective against B-lineage malignancies, post-CAR relapse is common, and efficacy in other tumors is limited. These challenges may be addressed through rational manipulations to control CAR T cell function. Here we examine the impact of cognate T cell antigen experience on subsequent CD8 CAR T cell activity.

The revised colorectal cancer screening guideline and screening burden at community health centers.

Colorectal cancer (CRC) is the third most common cancer among men and women combined, and the second leading cause of cancer death in the US. The revised USPSTF CRC screening recommendations increased CRC screening needs across health systems, which may create particular challenges for community health centers (CHCs) given their resource constraints. The objective of our study is to assess CRC screening rates across 10 CHCs in Massachusetts and estimate the additional increase in the number of average-risk screening-eligible individuals after the revision in guidelines.

Microglial activation and neuroinflammation in acute and chronic cognitive deficits in sepsis.

Sepsis is characterised by dysregulated immune responses to infection, leading to multi-organ dysfunction and high rates of mortality. With increasing survival rates in recent years long-term neurological and psychiatric consequences have become more apparent in survivors. Many patients develop sepsis associated encephalopathy (SAE) which encompasses the profound but usually transient neuropsychiatric syndrome delirium but also new brain injury that emerges in the months and years post-sepsis.

Emerging adults' financial stress and self-rated health: Meaning in life as a moderator.

The primary objective of the study was to examine associations between financial stress and self-rated health (mental and physical), with presence of and search for meaning in life as moderator variables. The secondary objective was to examine the association between presence of meaning and self-rated health, with search for meaning as a moderator. The sample included 166 emerging adults (ages 18-32, mean age 22.

Next Steps in Efforts to Address the Obesity Epidemic.

Obesity prevalence continues to rise globally at alarming rates, with adverse health and economic implications. In this state-of-the-art review, we provide an analysis of selected evidence about the current knowledge in the obesity literature, including a synthesis of current challenges in obesity and its determinants. In addition, we review past and current efforts to combat the obesity epidemic, highlighting both successful efforts and areas for further development.

Effectiveness of Semaglutide and Tirzepatide in Overweight and Obese Adults with Type 1 Diabetes.

Adults with type 1 diabetes (T1D) are increasingly overweight or obese, in part due to intensive insulin therapy. Newer non-insulin medications targeting both hyperglycemia and weight loss are approved for people with type 2 diabetes. These drugs also reduce cardiovascular disease, the major cause of mortality in people with diabetes.

Potential of phosphodiesterase 4B inhibition in the treatment of progressive pulmonary fibrosis.

Idiopathic pulmonary fibrosis (IPF) is often regarded as the archetypal progressive fibrosing interstitial lung disease (ILD). The term "progressive pulmonary fibrosis" (PPF) generally describes progressive lung fibrosis in an individual with an ILD other than IPF. Both IPF and PPF are associated with loss of lung function, worsening dyspnea and quality of life, and premature death.

Association of Phosphate Supplements With Refeeding Oedema in Restrictive Eating Disorders.

Objective: Refeeding oedema, believed to result from the effects of insulin on renal sodium retention and subsequent oedema formation, typically occurs during the first 2 weeks after reintroduction of nutrition in individuals with severe malnutrition and can intensify body image distress in patients with eating disorders (EDs). Phosphate supplements have been found to increase insulin sensitivity, and it is hypothesised that they may also contribute to refeeding oedema in patients with EDs.

Method: In this retrospective cohort study of 633 patients with severe malnutrition due to anorexia nervosa (AN) or avoidant restrictive food intake disorder (ARFID), the impact of phosphate supplementation on the rate of weight gain was investigated.