Results 71 to 80 of about 1,556,157 (299)

Feedback Control and the Arrow of Time

, 2008
The purpose of this paper is to highlight the central role that the time asymmetry of stability plays in feedback control. We show that this provides a new perspective on the use of doubly-infinite or semi-infinite time axes for signal spaces in control ...
Georgiou, Tryphon T., Smith, Malcolm C.
core   +2 more sources

Real‐World Pediatric Blinatumomab Administration: Access to Outpatient Care Delivery and Impact of a Hospital‐Dispensed Model

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Blinatumomab has been shown to be highly effective for patients with pediatric B‐ALL and has recently become standard of care therapy. Due to its past use in the clinical trial setting, there is limited information available about real‐world administration.
Katelyn Oranges, Kelly A. Duffy, Sara McDonough, Evelyn Kurpiewski, R. Jennifer Randall, Allison Barz Leahy, Haley M. Newman, Joyce P. Lee, Stephen P. Hunger, Anne F. Reilly, David T. Teachey, Susan R. Rheingold, Daniel J. Zheng   +12 more
wiley   +1 more source

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Time Asymmetric Quantum Mechanics

Symmetry, Integrability and Geometry: Methods and Applications, 2011
The meaning of time asymmetry in quantum physics is discussed. On the basis of a mathematical theorem, the Stone-von Neumann theorem, the solutions of the dynamical equations, the Schrödinger equation (1) for states or the Heisenberg equation (6a) for ...
Arno R. Bohm, Manuel Gadella, Piotr Kielanowski   +2 more
doaj   +1 more source

An autonomous quantum machine to measure the thermodynamic arrow of time [PDF]

npj Quantum Information, 2018
According to the second law of thermodynamics, the evolution of physical systems has a preferred direction, that is characterized by some positive entropy production. Here we propose a direct way to measure the stochastic entropy produced while driving a
Juliette Monsel, C. Elouard, A. Auffèves   +2 more
semanticscholar   +1 more source

Vacuum Structure and the Arrow of Time

, 2012
We find ourselves in an extended era of entropy production. Unlike most other observations, the arrow of time is usually regarded as a constraint on initial conditions. I argue, however, that it primarily constrains the vacuum structure of the theory.
A. Linde, J. D. Barrow, J. D. Bekenstein, Raphael Bousso, W. Fischler   +4 more
core   +2 more sources

Personalized Selumetinib Dosing in Pediatric Neurofibromatosis Type 1: Insights From a Pilot Therapeutic Drug Monitoring Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Objective To evaluate selumetinib exposure using therapeutic drug monitoring (TDM) in pediatric patients with neurofibromatosis type 1 (NF1) and plexiform neurofibromas (PN), assess interpatient pharmacokinetic variability, and explore the relationship between drug exposure, clinical response, and adverse effects.
Janka Kovács, Zoltán Köllő, Balázs Gellért Karvaly, Mahmoud Obeidat, Rita Nagy, Péter Hegyi, Brigitta Teutsch, Eszter Tuboly, Miklós Garami   +8 more
wiley   +1 more source

Processing of Flavor-Enhanced Oils: Optimization and Validation of Multiple Headspace Solid-Phase Microextraction-Arrow to Quantify Pyrazines in the Oils

Life, 2021
An efficient and effective multiple headspace-solid phase microextraction-arrow-gas chromatography-mass spectrometry (MHS-SPME-arrow-GCMS) analytical protocol is established and used to quantify the flavor compounds in oils.
Ziyan Xu, Chuan Zhou, Haiming Shi, Hong Zhang, Yanlan Bi, Xuebing Xu   +5 more
doaj   +1 more source

Vacuum structure for expanding geometry [PDF]

, 1999
We consider gravitational wave modes in the FRW metrics in a de Sitter phase and show that the state space splits into many unitarily inequivalent representations of the canonical commutation relations.
Albrecht A, Alfinito E, Alhassid Y, Boyanowski D, Bratteli O, Celeghini E, De Filippo S, E Alfinito, Eboli O, Eboli O, Feshbach H, G Vitiello, Grishchuk L P, Hawking S W, Hawking S W, Hawking S W, Hawking S W, Johansson A E I, Lindblad G, Martellini M, Misner W, Ojima I, Penrose R, Perelomov A M, Prokopec T, R Manka, Sewell G L, Solomon A I, Takahashi Y, Umezawa H, Umezawa H, Vitiello G, Wald R M, Wald R M   +33 more
core   +3 more sources

Arrow of Time for Continuous Quantum Measurement. [PDF]

Physical Review Letters, 2016
We investigate the statistical arrow of time for a quantum system being monitored by a sequence of measurements. For a continuous qubit measurement example, we demonstrate that time-reversed evolution is always physically possible, provided that the ...
J. Dressel, A. Chantasri, A. Jordan, A. Korotkov   +3 more
semanticscholar   +1 more source