Results 11 to 20 of about 9,050 (237)

On the sojourn time of a generalized Brownian meander [PDF]

open access: yesStatistics & Probability Letters, 2021
In this paper we study the sojourn time on the positive half-line up to time $ t $ of a drifted Brownian motion with starting point $ u $ and subject to the condition that $ \min_{ 0\leq z \leq l} B(z)> v $, with $ u > v $. This process is a drifted Brownian meander up to time $ l $ and then evolves as a free Brownian motion. We also consider the
Iafrate F., Orsingher E.
openaire   +4 more sources

Psychopathological Risk During Adolescent Study-Abroad: A Larger-Cohort Update of a Previous Longitudinal Study [PDF]

open access: yesEuropean Journal of Investigation in Health, Psychology and Education
This article updates and extends a prior longitudinal study on adolescents’ psychological adjustment during short-term study-abroad programs, analyzing a newly collected larger cohort with the same design and measures. Using the same assessment schedule (
Silvia Cimino, Luca Cerniglia
doaj   +2 more sources

Use of personalised risk-based screening schedules to optimise workload and sojourn time in screening programmes for diabetic retinopathy: A retrospective cohort study. [PDF]

open access: yesPLoS Medicine, 2019
BACKGROUND:National guidelines in most countries set screening intervals for diabetic retinopathy (DR) that are insufficiently informed by contemporary incidence rates.
Andreas Ochs   +10 more
doaj   +2 more sources

A note on the sojourn time distribution of an M/G/1 queue with a single working vacation and vacation interruption

open access: yesOperations Research Perspectives, 2015
We study the paper of Gao and Liu (2013). In the paper, the authors pay little attention to the customer’s sojourn time in their model although both the queue length and the busy cycle are seriously analyzed.
Doo Ho Lee, Bo Keun Kim
doaj   +3 more sources

The macroecological dynamics of sojourn trajectories in the human gut microbiome [PDF]

open access: yesmSystems
The human gut microbiome is a dynamic ecosystem. Host behaviors (e.g., diet) provide a regular source of environmental variation that induces fluctuations in the abundances of resident microbiota.
William R. Shoemaker, Jacopo Grilli
doaj   +2 more sources

Extremal values of the sojourn time

open access: yesJournal of Physics A: Mathematical and Theoretical, 2010
Consider a self-adjoint operator H on a separable Hilbert space with non-trivial absolutely continuous component. We study the general properties of the real-valued functional, , which in quantum mechanics represents the sojourn time (or life time) of an initial state .
Astaburuaga, M. A.   +2 more
openaire   +5 more sources

Mean Sojourn Time of Preclinical Gastric Cancer in Korean Men: A Retrospective Observational Study [PDF]

open access: yesJournal of Preventive Medicine and Public Health, 2014
Objectives: This retrospective cohort study aimed to estimate the mean sojourn time (MST) of preclinical gastric cancer in Korean men. Methods: The subjects consisted of voluntary male screenees aged 40 to 69 years who underwent subsequent screening ...
Jong-Myon Bae   +2 more
doaj   +2 more sources

Sojourn Time Analysis of a Single-Server Queue with Single- and Batch-Service Customers

open access: yesMathematics
There are various types of sharing economy services, such as ride-sharing and shared-taxi rides. Motivated by these services, we consider a single-server queue in which customers probabilistically select the type of service, that is, the single service ...
Yusei Koyama   +2 more
doaj   +2 more sources

Quantifying the duration of the preclinical detectable phase in cancer screening: a systematic review [PDF]

open access: yesEpidemiology and Health, 2022
OBJECTIVES The aim of this study was to provide an overview of published mathematical estimation approaches to quantify the duration of the preclinical detectable phase (PCDP) using data from cancer screening programs.
Sandra M. E. Geurts   +5 more
doaj   +1 more source

Load Balancing in 3D Wireless Networks with UAV [PDF]

open access: yesعلوم و فنون نظامی, 2023
Objective: Wireless networks with unmanned aerial vehicles (UAVs) as airborne base stations have become a promising technology to increase the coverage area of users.
Akbar Asgharzadeh-Bonab   +1 more
doaj   +1 more source

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