Results 71 to 80 of about 8,315 (142)

A Hybrid Short-Term Prediction Model for BDS-3 Satellite Clock Bias Supporting Real-Time Applications in Data-Denied Environments

open access: yesRemote Sensing
High-precision satellite clock bias (SCB) prediction is essential for GNSS applications, including real-time precise point positioning (RT-PPP), Earth observation, planetary exploration, and spaceborne geodetic missions.
Ye Yu   +4 more
doaj   +1 more source

Overbounding observation errors considering elevation-related distribution characteristics for maritime RT-PPP integrity monitoring

open access: yesSatellite Navigation
Integrity monitoring ensures the reliability of Real-Time Precise Point Positioning (RT-PPP) by calculating the Protection Level (PL) in maritime applications.
Fuxin Yang   +5 more
doaj   +1 more source

Method and Validation of Real‐Time Global Ionosphere Modeling Constraint by Multi‐Source GNSS/LEO Data

open access: yesSpace Weather
This study applies the zero‐differenced integer ambiguity method, named PPP‐Fixed, to extract real‐time ionospheric data and eliminate the latencies of rapid/final Global Ionosphere Maps (GIMs).
Jun Chen   +5 more
doaj   +1 more source

Radiotherapy access in Latin America: Socio-economic determinants and equity challenges socio-economic determinants in Latin America for radiotherapy

open access: yesClinical and Translational Radiation Oncology
Introduction: Radiotherapy (RT) is essential for cancer treatment, yet access in Latin America remains highly unequal due to socio-economic and systemic disparities.
Gustavo R. Sarria   +9 more
doaj   +1 more source

Tonsillar Tfh cells contribute to the pathogenesis of IgA nephropathy in collaboration with memory B cells. [PDF]

open access: yesFront Immunol
Sugaya T   +10 more
europepmc   +1 more source

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