Student perceptions of U.S. based school day physical activity best practices in relation to accelerometer-based sedentary behavior and activity.

Objective: To examine associations between student perceptions of school physical activity best practices and accelerometer-based physical activity during school days.

Methods: The sample was 758 students in grades 3rd-4th or 6th-7th (female-58 %; 31 % Black/African American) from 33 schools across five school districts in a Mid-Atlantic state in the U.S.

Ecological Momentary Assessment of Momentary Associations Between Availability of Physical Activity Space and Physical Activity Opportunities Among Children from Rural, Urban, and Suburban Locales.

Using Ecological Momentary Assessment (EMA), this study examined associations between momentary availability of physical activity (PA) space and accessibility of PA opportunities among 608 elementary and middle school students who were participating in an obesity prevention trial in one mid-Atlantic state in the U.S. Smartphones prompted EMA surveys at random times to assess children's perceived availability of PA space and accessibility of PA opportunities during out-of-school time, three to seven times each day over seven days.

The Natural History of Portal Venous System Aneurysms.

Background: Portal venous system aneurysms (PVA) are increasingly diagnosed on cross-sectional computed tomography (CT) imaging. However, the natural history of these aneurysms is poorly understood and reports are limited to small case series.

Methods: Terms relevant to PVA were searched in radiology reports (2010-2022) with PVA presence confirmed by manual review.

A Model for Engaging Citizen Scientists: A Community-Partnered Research Collaboration to Address Inequities for Black Birthing People.

Purpose: Co-creation of a citizen-science research initiative with a collaborative team of community members and university-based scientists to address regional disparities in maternal and fetal health outcomes for Black birthing people.

Description: Citizen scientist-led projects, where community members actively contribute to each discovery step, from setting a research agenda to collecting data and disseminating results, can extend community participatory research initiatives and help reconceptualize traditional research processes. The Pregnancy Collaborative is a citizen-science research initiative and one of nine scientific committees of The Pittsburgh Study-a longitudinal, community-partnered study designed to bring together collaborators to improve child thriving.

Parents' Perceptions of Schools' COVID-19 Mitigation Strategies: A Phenomenological Study.

Background: At the onset of the COVID-19 pandemic, schools closed across the United States. Given the impact of virtual learning and lost access to school resources, schools eventually reopened with COVID-19 mitigation protocols in place. This qualitative study sought to understand parental perceptions of school-based COVID-19 mitigation strategies.

Food (in)security in relation to nutrition (in)security in a national cross-sectional sample of Supplemental Nutrition Assistance Program participants: considerations of an emerging construct.

Background: Food insecurity, lack of access to sufficient food for an active, healthy life, is a persistent problem in the United States. Recently, nutrition security has emerged as a new concept. However, limited research exists examining how nutrition security relates to the established concept of food security.

Adaptive tail-length evolution in deer mice is associated with differential Hoxd13 expression in early development.

Variation in the size and number of axial segments underlies much of the diversity in animal body plans. Here we investigate the evolutionary, genetic and developmental mechanisms driving tail-length differences between forest and prairie ecotypes of deer mice (Peromyscus maniculatus). We first show that long-tailed forest mice perform better in an arboreal locomotion assay, consistent with tails being important for balance during climbing.

Preschoolers' Self-Regulation and Behavior Problems in the Midst of Caregiver Depression and Chaos.

Objectives: Preschoolers' self-regulation is partially developed through home and child care routines. COVID-19-related child care closures increased caregiver depressive symptoms, household chaos, and children's behavior problems. This longitudinal study examined how preschoolers' prepandemic self-regulation was related to behavior problems early in the pandemic, including buffering against the adverse effects of caregiver depressive symptoms and household chaos.

Competitive Foods' Nutritional Quality and Compliance with Smart Snacks Standards: An Analysis of a National Sample of U.S. Middle and High Schools.

Snacks and beverages are often sold in addition to meals in U.S. schools ("competitive foods"), but their current nutritional quality and compliance with national Smart Snacks standards are unknown.

Implicit Racial Bias in Evaluation of Neonatal Opioid Withdrawal Syndrome.

Objective: To assess implicit bias by administrating the Modified Finnegan Score (MFS) for quantifying neonatal opioid withdrawal and to evaluate risk of decreased opioid treatment of Black versus White infants.

Study Design: Study participants were nurses recruited from a large tertiary care center who received three clinical vignettes portraying withdrawing infants and were randomized to receive an accompanying photo of either a Black or White infant. MFS results were compared for identical vignettes based on race of infant photo.

Heterotopic ossification in right popliteal fossa causing arterial insufficiency.

Heterotopic ossification (HO) is the abnormal formation of extra-skeletal bone in soft tissue, which can occur after trauma or surgery. HO in joints can cause pain, hinder mobility, and compress surrounding nerves and blood vessels. We present an unusual case of arterial insufficiency caused by HO in the right popliteal fossa.

Perceptions of Parental Support for Physical Activity and Healthy Eating among School-age Children During COVID-19 pandemic.

Family routines play a key role in promoting child health behaviors. This study 1) describes changes in children's perceptions of physical activity (PA) and healthy eating family routines across three time points: pre-pandemic (2017-2020), early pandemic (2020), and mid-pandemic (2021); and 2) explores how sex, age, and pandemic-related economic stressors relate to changes. Children's perceptions of family routines were assessed using four subscales adapted from the Comprehensive Home Environment Survey: PA-policies, Diet-policies, Diet-rules, and PA-Diet-role-model.

Studying the impact of COVID-19 mitigation policies on childhood obesity, health behaviors, and disparities in an observational cohort: Protocol for the COVID-19 Family Study.

Background: COVID-19 pandemic control policies, including school closures, suspended extra-curricular activities, and social distancing, were introduced to prevent viral transmission, and disrupted children's daily routines, health behaviors, and wellness. This observational cohort study among 697 families with children or adolescents, based on the Family Stress Model, aims to: 1) evaluate pre- to during-pandemic changes in child health behaviors (diet, physical activity, sleep) and weight gain, 2) identify mechanisms explaining the changes, and 3) determine projected healthcare costs on weight gain and obesity. Each aim includes an examination by racial and ethnic, socioeconomic, and geographic disparities.

Development of a community-informed communication toolkit to prevent spread of viral illness in schools, including SARS-COV-2.

Introduction: Schools were uniquely impacted during the COVID-19 (SARS-COV-2) pandemic. We sought to elucidate how parents/guardians of elementary and middle school students in Maryland navigated the return to in-person school following remote instruction. We also sought to understand how they perceived communication about school-based COVID-19 mitigation strategies and their preferences for the content and format of public health communication about COVID-19 mitigation in schools.

Feasibility of Low-Load Resistance Training Using Blood Flow Restriction for People With Advanced Multiple Sclerosis: A Prospective Cohort Study.

Objective: The objective of this study was to determine the feasibility of low-load resistance training with blood flow restriction (BFR) for people with advanced disability due to multiple sclerosis (MS).

Methods: In this prospective cohort study, 14 participants with MS (Expanded Disability Status Scale [EDSS] score = 6.0 to 7.

Physical Education Teachers' Perceived Effectiveness in Association with Student Attendance, Teacher Adaptability, External Educational Supports, and Teaching Format During the COVID-19 Pandemic.

Spring 2020 pandemic-control policies included an abrupt shift to remote teaching, which may have affected physical education (PE) teachers' perceived effectiveness. This study examined K-12 PE teachers' perceived effectiveness in association with student attendance, teacher adaptability, PE supports, teaching format (in-person, remote synchronous, remote asynchronous, etc.), and teacher- and school-level demographics at three time points (pre-pandemic 2019-early 2020, Spring 2020, 2020-2021 school year).

Enhancing structural plasticity of PC12 neurons during differentiation and neurite regeneration with a catalytically inactive mutant version of the zRICH protein.

Background: Studies of the molecular mechanisms of nerve regeneration have led to the discovery of several proteins that are induced during successful nerve regeneration. RICH proteins were identified as proteins induced during the regeneration of the optic nerve of teleost fish. These proteins are 2',3'-cyclic nucleotide, 3'-phosphodiesterases that can bind to cellular membranes through a carboxy-terminal membrane localization domain.

Identifying and preventing fraudulent responses in online public health surveys: Lessons learned during the COVID-19 pandemic.

Web-based survey data collection has become increasingly popular, and limitations on in-person data collection during the COVID-19 pandemic have fueled this growth. However, the anonymity of the online environment increases the risk of fraudulent responses provided by bots or those who complete surveys to receive incentives, a major risk to data integrity. As part of a study of COVID-19 and the return to in-person school, we implemented a web-based survey of parents in Maryland between December 2021 and July 2022.

Alternative School Breakfast Service Models and Associations with Breakfast Participation, Diet Quality, Body Mass Index, Attendance, Behavior, and Academic Performance: A Systematic Review.

The United States (US) School Breakfast Program provides Breakfast After The Bell (BATB) to alleviate hunger, provide nutrition, and ensure students have a healthy start to the day. This study aims to review the evidence regarding the impact of BATB on students' diet and academic outcomes, including participation, diet quality and consumption, body mass index (BMI) and weight status, attendance, classroom behavior, and academic performance. The articles were extracted from three electronic databases and published since the start of the literature through December 2022.

Race, sex, and socioeconomic disparities affect the clinical stage of patients presenting for treatment of superficial venous disease.

Objective: Superficial venous disease has a U.S. prevalence of nearly 30%, with advanced disease contributing to a significant healthcare burden.