Results 51 to 60 of about 9,050 (237)
Background: Following widespread mammography screening for breast cancer, the incidence of ductal carcinoma in situ (DCIS) has increased sharply. However, the value of detecting DCIS by screening is uncertain as not all DCIS progresses to invasive breast
Xiaoxue Li +3 more
doaj +1 more source
Analysis of an N–Policy GI/M/1 Queue in a Multi–Phase Service Environmentwith Disasters
This paper investigates an N-policy GI/M/1 queue in a multi-phase service environment with disasters, where the system tends to suffer from disastrous failures while it is in operative service environments, making all present customers leave the system ...
Jiang Tao +3 more
doaj +1 more source
Discrete Time Hybrid Semi-Markov Models in Manpower Planning
Discrete time Markov models are used in a wide variety of social sciences. However, these models possess the memoryless property, which makes them less suitable for certain applications.
Brecht Verbeken, Marie-Anne Guerry
doaj +1 more source
Abstract This study examines the under‐theorized political role and identity of Chinese international students, who emerge as significant actors caught between U.S. soft power ambitions and rising geopolitical suspicion. Amid escalating U.S.‐China tensions, these students are forced to confront environments shaped by competing geopolitical discourses ...
Jing Yu
wiley +1 more source
Wafer Sojourn Time Fluctuation Caused by Activity Time Variation in DualArm Cluster Tools
With wafer residency time constraints, wafer sojourn time in a processing module should be carefully controlled such that it is in a permissive range.
Zhou, Meng Chu +3 more
core +1 more source
Uncertainty persists over whether the benefits of prostate‐specific antigen (PSA) screening outweigh harms from overdiagnosis, a key barrier to population‐wide adoption. Here, English male mortality rates were analyzed alongside long‐term data from the UK Cluster Randomized Trial of PSA Testing for Prostate Cancer (CAP) to estimate age‐specific ...
Adam R. Brentnall +5 more
wiley +1 more source
A note on the catch-up time method for estimating lead or sojourn time in prostate cancer screening. [PDF]
Models of cancer screening assume that cancers are detectable by screening before being diagnosed clinically through symptoms. The duration of this preclinical phase is called sojourn time, and it determines how much diagnosis might be advanced in time ...
Draisma G, van Rosmalen J.
europepmc +2 more sources
Background: the knowledge of sojourn time (the duration of the preclinical screen-detectable period) and screening test sensitivity is crucial for understanding the disease progression and the effectiveness of screening programmes.
Leonardo Ventura +5 more
doaj
Objective To explore the transitions of different blood pressure states based on a multistate Markov model among the Chinese elderly population.Setting A community health centre in Xiamen, China.Participants 1833 elderly Chinese people.Methods A ...
Bin Zhao +6 more
doaj +1 more source
Tracking maneuvering vehicles in complex dynamic environment is a challenging problem for advanced driver assistance system and autonomous driving systems. Most conventional vehicle tracking algorithms can not model the vehicle dynamic exactly because of
Zhen Tian, Ming Cen, Yinguo Li, Hao Zhu
doaj +1 more source

