Using results from the theory of dynamical systems, we derive a general expression for the classical average scattering dwell time tau . Remarkably, tau depends only on a ratio of phase space volumes. We further show that, for a wide class of systems, the average classical dwell time is not in correspondence with the energy average of the quantum Wigner time delay.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevE.70.036214 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Ventricular lead malfunction in a patient with complete atrioventricular block and corrected transposition of the great arteries: Is leadless pacemaker the best solution?
J Cardiol Cases
October 2024
Second Division of Cardiology, Pisa University Hospital, Pisa, Italy.
Unlabelled: Corrected transposition of the great arteries (c-TGA) is a congenital abnormality characterized by atrioventricular (AV) and ventriculoarterial discordance, associated with early and late-onset conduction disturbances. We report the case of a c-TGA patient affected by congenital complete AV block, with right ventricular lead malfunction with prolonged dwell time and two abandoned leads. He underwent leadless VDD pacemaker implantation at an unusual site (i.
View Article and Find Full Text PDFMode switching control of independent metering fluid power systems.
ISA Trans
January 2025
State Key Laboratory of Crane Technology, Yanshan University, Qinhuangdao 066004, China. Electronic address:
An independent metering system (IMS) realizes the decoupling of the meter-in and meter-out orifices. The energy efficiency of the hydraulic system can be effectively improved by switching between different operational modes. However, the tracking accuracy of the IMS mode-switching system is difficult to ensure, which can easily lead to instability in the hydraulic system.
View Article and Find Full Text PDFAdverse events associated with umbilical vascular catheters in neonatal intensive care: Development of a risk prediction model.
Aust Crit Care
January 2025
Allied Health & Human Performance, Rosemary Bryant AO Research Centre, University of South Australia, Adelaide, SA, Australia.
Background: Adverse events associated with umbilical vascular catheters occur frequently in the neonatal intensive care unit. International guidelines recommend limiting catheter dwell time to reduce the risk of adverse events, and this drives clinical decision-making regarding catheter removal, yet other risk factors may also influence the risk of adverse events.
Objectives: The aim of this study was to develop a clinically useful risk prediction model that could be utilised in the neonatal intensive care unit to identify infants at a greater risk of developing an adverse event associated with umbilical vascular catheters.
Recurrent peripheral intravenous catheterization in neonates: A case series.
Nurs Crit Care
January 2025
Women's and Newborns Service, Grantley Stable Neonatal Unit, Nursing and Midwifery Research Centre; Royal Brisbane and Women's Hospital, Herston, Australia.
Neonatal peripheral intravenous catheters (PIVCs) can be difficult to insert, often requiring multiple attempts, with each attempt causing pain and delaying treatment. The aim of this study was describe the clinical characteristics of neonates requiring multiple PIVCs during hospitalization. A secondary case series of neonates requiring three or more PIVCs during their admission were identified from a cohort admitted to an Australian Neonatal Unit between October 2020 and February 2021.
View Article and Find Full Text PDFBiased attention allocation in major depressive disorder: A replication and exploration of the potential effects of depression history.
J Affect Disord
January 2025
School of Psychological Sciences, Tel Aviv University, Tel-Aviv, Israel. Electronic address:
Background: Increased attention allocation to negative-valenced information and decreased attention allocation to positive-valenced information have been implicated in the etiology and maintenance of depression. The Matrix task, a free-viewing eye-tracking attention assessment task, has shown corroborating results, coupled with adequate reliability. Yet, replication efforts are still needed.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!