A new relative of pentacene: The dialkynylated tetraazapentacene (see figure) was prepared by a two-step synthesis from the corresponding quinone derivative. The heteroacene is an air-stable, dark-blue, crystalline material and is of great interest as a potential organic n-electron-transport material.
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http://dx.doi.org/10.1002/chem.200900324 | DOI Listing |
JACC Clin Electrophysiol
January 2025
Vanderbilt Heart and Vascular Institute, Nashville, Tennessee, USA. Electronic address:
Background: Programmed electrical stimulation (PES) is an essential part of ventricular tachycardia (VT) ablation procedures, but VT is not always inducible, usually for reasons that are not clear.
Objectives: This study sought to review pacing site-specific failure of PES to induce scar-related VT and to provide a potential mechanistic explanation of the phenomena using a computer simulation.
Methods: Six patients in whom aggressive PES from traditional RV pacing sites failed to induce VT, but VT was easily inducible from a nontraditional site, were reviewed.
JACC Clin Electrophysiol
December 2024
The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada.
Background: Conduction velocity (CV) is a measure of the health of myocardial tissue. It can be measured by taking differences in local activation times from intracardiac electrodes. Several factors introduce error into the measurement, among which ignoring the 3-dimensional aspect is a major detriment.
View Article and Find Full Text PDFJ Nutr Educ Behav
January 2025
Virginia Cooperative Extension Family Nutrition Program, Virginia Tech, Blacksburg, VA; Department of Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, VA.
Objective: To assess the mean differences in outcomes of 3 delivery modalities of a nutrition education program targeting older adults.
Methods: A natural experiment was conducted from March 2020 to September 2021, with presurveys and postsurveys used to assess dietary and physical activity behaviors. Results were analyzed using descriptive statistics, t tests, and ANOVA, with a Bonferroni-corrected significance threshold at P < 0.
J Adolesc Health
January 2025
Laboratory of Cognitive Control and Brain Healthy, Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, China; Department of Psychiatry, Zhujiang Hospital, Southern Medical University, Guangzhou, China. Electronic address:
Purpose: Subthreshold depression refers to a condition involving clinically significant depressive symptoms that fall short of meeting the diagnostic criteria for major depressive disorder (MDD). Identifying risk and protective factors associated with the progression of subthreshold depression in early life is essential for timely prevention. However, there is limited research on this topic among early adolescents.
View Article and Find Full Text PDFJ Adolesc Health
January 2025
University of Michigan Department of Obstetrics and Gynecology, Ann Arbor, Michigan; Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor, Michigan; Department of Health Behavior and Health Equity, University of Michigan School of Public Health, Ann Arbor, Michigan. Electronic address:
Purpose: We aimed to analyze adolescent and young adults' (AYAs) perspectives on using sexually transmitted infection (STI) self-collection kits to help guide the provision and implementation of accessible and confidential reproductive health-care services for those who experience the burden of STIs and STI-related morbidity.
Methods: We utilized MyVoice, a nationwide text message survey of AYAs, to pose 6 open-ended questions on their perceptions and use of STI self-collection kits. Two independent reviewers used inductive content analysis to develop a codebook and analyze responses, and a third settled any coding discrepancies through discussion to reach consensus.
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