Results 1 to 10 of about 12,552,614 (315)

Securing Medical Records of COVID-19 Patients Using Elliptic Curve Digital Signature Algorithm (ECDSA) in Blockchain

open access: yesCommIT Journal, 2022
The rapid and dangerous spread of COVID-19 has forced governments in various countries to provide information on patients’ medical records to the public in the context of prevention. Meanwhile, patients’ medical records are vital and confidential because
Andi Andi   +3 more
doaj   +1 more source

Sensitivity and Consistency Analysis of BDS-3 GEO Satellite Orbit Maneuver Detection

open access: yesInternational Journal of Aerospace Engineering, 2023
In this study, 22 maneuvering events of C59 and C60 geostationary equatorial orbit (GEO) satellites of the BeiDou global navigation satellite system (BDS-3) in 2021 were detected and analyzed based on a time-differenced carrier phase velocity measurement
Yage Miao   +6 more
doaj   +1 more source

Effects of Water Deficits on Prosopis tamarugo Growth, Water Status and Stomata Functioning

open access: yesPlants, 2020
The effect of water deficit on growth, water status and stomatal functioning of Prosopis tamarugo was investigated under controlled water conditions. The study was done at the Antumapu Experiment Station of the University of Chile.
Alson Time, Edmundo Acevedo
doaj   +1 more source

Adapting to a Global Health Challenge: Managing Antimicrobial Resistance in the Nordics

open access: yesPolitics and Governance, 2020
This article explores the adaptation of Norway and Sweden to one of the major challenges to global public health, antimicrobial resistance (AMR). Guided by assumptions derived from institutional theory, the article investigates whether, and, if so, how ...
Martin Stangborli Time, Frode Veggeland
doaj   +1 more source

brak

open access: yesPraktyka Teoretyczna, 2010
brak
Time for commons Time for commons
doaj   +1 more source

Demonstration of a time scale with the 87Sr optical lattice clock at NTSC

open access: yesAIP Advances, 2023
Optical clocks have been applied to the generation of time scales since they provide superb uncertainty and instability in recent years. This paper presents the simulations about the impact of the optical clock’s operational strategies on the performance
Qinfang Xu   +6 more
doaj   +1 more source

The effect of milrinone on mortality in adult patients who underwent CABG surgery: a systematic review of randomized clinical trials with a meta-analysis and trial sequential analysis

open access: yesBMC Cardiovascular Disorders, 2020
Background As an inodilator, milrinone is commonly used for patients who undergo coronary artery bypass graft (CABG) surgery because of its effectiveness in decreasing the cardiac index and mitral regurgitation.
Yu-shan Ren   +7 more
doaj   +1 more source

Demonstration of the Systematic Evaluation of an Optical Lattice Clock Using the Drift-Insensitive Self-Comparison Method

open access: yesApplied Sciences, 2021
The self-comparison method is a powerful tool in the uncertainty evaluation of optical lattice clocks, but any drifts will cause a frequency offset between the two compared clock loops and thus lead to incorrect measurement result.
Chihua Zhou   +4 more
doaj   +1 more source

GNSS rapid precise point positioning enhanced by low Earth orbit satellites

open access: yesSatellite Navigation, 2023
The Low Earth Orbit (LEO) satellites can be used to effectively speed up Precise Point Positioning (PPP) convergence. In this study, 180 LEO satellites with a global distribution are simulated to evaluate their contribution to the PPP convergence.
Ju Hong   +7 more
doaj   +1 more source

Efforts towards a low-temperature-sensitive physics package for vapor cell atomic clocks

open access: yesSatellite Navigation, 2020
Strong environmental dependence is an intractable problem for vapor cell clocks, for which the high-temperature sensitivity of the physics package is considered one of the dominant reasons.
Qiang Hao   +5 more
doaj   +1 more source

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