Results 71 to 80 of about 1,461,021 (294)

5G Positioning: An Analysis of Early Datasets

Sensors, 2023
Global Navigation Satellite Systems (GNSSs) are nowadays the prevailing technology for positioning and navigation. However, with the roll-out of 5G technology, there is a shift towards ‘hybrid positioning’: indeed, 5G time-of-arrival (ToA) measurements ...
Chiara Pileggi, Florin Catalin Grec, Ludovico Biagi   +2 more
doaj   +1 more source

Time-of-arrival distribution for arbitrary potentials and Wigner's time-energy uncertainty relation [PDF]

, 1999
A realization of the concept of "crossing state" invoked, but not implemented, by Wigner, allows to advance in two important aspects of the time of arrival in quantum mechanics: (i) For free motion, we find that the limitations described by Aharonov et ...
A. D. Baute, E. P. Wigner, I. L. Egusquiza, J. G. Muga, J. Kijowski, J. P. Palao, J.G. Muga, J.G. Muga, J.G. Muga, M. Bauer, M.S. Marinov, M.S. Marinov, N. Grot, P. Busch, P. Busch, R. Giannitrapani, R. Kosloff, R. Sala Mayato, R. Werner, S. Brouard, V. Delgado, V. Delgado, Y. Aharonov, Y. Aharonov   +23 more
core   +2 more sources

Feasibility and Preliminary Efficacy of Integrative Neuromuscular Training for Childhood Cancer Survivors: A Pilot Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of childhood acute lymphoblastic leukemia (ALL) often exhibit early deficits in muscle and movement competence, which can compromise long‐term health. Integrative neuromuscular training (INT), a multifaceted approach combining fundamental movement activities with strength exercises, may help address these deficits during ...
Anna Maria Markarian, Robert U. Newton, Dennis R. Taaffe, Nicholas G. Gottardo, Santosh Valvi, Carolyn J. Peddle‐McIntyre, Jodie Cochrane Wilkie, Daniel A. Galvão   +7 more
wiley   +1 more source

Quantum Arrival Time For Open Systems

, 2012
We extend previous work on the arrival time problem in quantum mechanics, in the framework of decoherent histories, to the case of a particle coupled to an environment.
A. Abramowitz, A. Peres, D. Giulini, J. J. Halliwell, J. M. Yearsley, M. A. Nielsen, M. Gell-Mann, P. Busch, W. Schleich   +8 more
core   +1 more source

Therapeutic Apheresis for Intravenous Methylprednisolone‐Refractory Neuromyelitis Optica Spectrum Disorder: Clinical and Radiological Outcomes in a Single‐Center Case Series

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Neuromyelitis optica spectrum disorder (NMOSD) is a relapsing autoimmune disease of the central nervous system. High‐dose intravenous methylprednisolone (IVMP) is the standard first‐line therapy for acute attacks, although some patients remain refractory.
Wataru Horiguchi, Daisuke Katagiri, Takeyuki Watadani, Shunichi Matsuda, Hiroshi Kaneko, Noritoshi Arai   +5 more
wiley   +1 more source

Event-Based Validation of Swell Arrival Time

Journal of Physical Oceanography, 2016
AbstractThe arrival time of ocean swells is an important factor for offshore and coastal engineering and naval and recreational activities, which can also be used in evaluating the numerical wave model. Using the continuity and pattern of wave heights during the same swell event, a methodology is developed for identifying swell events and verifying ...
Jiang, Haoyu, Babanin, Alexander V., Chen, Ge   +2 more
openaire   +2 more sources

Relativistic free-motion time-of-arrival [PDF]

Journal of Physics A: Mathematical and Theoretical, 2007
Relativistic free-motion time-of-arrival theory for massive spin-1/2 particles is systematically developed. Contrary to the nonrelativistic time-of-arrival operator studied thoroughly in previous literatures, the relativistic time-of-arrival operator possesses self-adjoint extensions because of the particle-antiparticle symmetry.
Wang, Zhi-Yong, Xiong, Cai-Dong
openaire   +2 more sources

Mind the Gap – Passenger Arrival Patterns in Multi-agent Simulations [PDF]

, 2016
In most studies mathematical models are developed finding the expected waiting time to be a function of the headway. These models have in common that the proportion of passengers that arrive randomly at a public transport stop is less as headway in ...
Kaddoura, Ihab, Nagel, Kai, Neumann, Andreas   +2 more
core   +1 more source

Infection Control Practices for Vascular Access Management in Hemodialysis: Results From a Nationwide Survey of Japanese National University Hospitals

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada, Makoto Harada, Tadahiko Kikugawa, Takeshi Nakata, Koji Hashimoto, Tsuneo Konta, Yuji Kamijo   +6 more
wiley   +1 more source

The solution to the problem of time in quantum gravity also solves the time of arrival problem in quantum mechanics

New Journal of Physics, 2022
We introduced with coauthors some years ago a solution to the problem of time in quantum gravity which consists in formulating the quantum theory in terms of real clocks.
Rodolfo Gambini, Jorge Pullin
doaj   +1 more source