Results 51 to 60 of about 1,461,021 (294)

Symmetries and time operators [PDF]

, 2010
All covariant time operators with normalized probability distribution are derived. Symmetry criteria are invoked to arrive at a unique expression for a given Hamiltonian.
Hegerfeldt, G. C., Muga, J. G.
core   +1 more source

Adherence to Protocol Recommendations for Children With Wilms Tumour in Two Consecutive Studies in the United Kingdom and Ireland—Does Variation Matter?

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background and Aims Wilms tumour (WT) has excellent event‐free and overall survival (OS). However, small differences exist between countries participating in the same international study. This led us to examine variation in adherence to protocol recommendations as a potential contributing factor.
Suzanne Tugnait, R. Al‐Saadi, A. Lopez‐Cortes, K. Dzhuma, M. Oostveen, J. Brok, S. Irtan, M. Weeks, J. Bate, S. Baker, R. Williams, M. Powis, D. Saunders, O. Olsen, T. Watson, S. Shelmerdine, S. Vaidya, L. Howell, C. Duncan, G. M. Vujanic, C. Stiller, G. P. Balchin, T. Chowdhury, K. Pritchard‐Jones   +23 more
wiley   +1 more source

Optimal source localization problem based on TOA measurements [PDF]

Serbian Journal of Electrical Engineering, 2017
Determining an optimal emitting source location based on the time of arrival (TOA) measurements is one of the important problems in Wireless Sensor Networks (WSNs). The nonlinear least-squares (NLS) estimation technique is employed to obtain the
Rosić Maja, Simić Mirjana, Pejović Predrag, Bjelica Milan   +3 more
doaj   +1 more source

Time of arrival through interacting environments: Tunneling processes

, 2000
We discuss the propagation of wave packets through interacting environments. Such environments generally modify the dispersion relation or shape of the wave function.
A.I. Kirillov, A.M. Steinberg, A.M. Steinberg, Atsushi Horikoshi, B.E. Schaefer, C. Bracher, C.R. Leavens, E. Nelson, E.H. Hauge, E.P. Wigner, Etsuko Nakamura, G. Amelino-Camelia, J.G. Muga, J.G. Muga, J.G. Muga, J.I. Latorre, J.J. Halliwell, J.R. Hiller, K. Imafuku, K. Imafuku, Ken-Ichi Aoki, L.J. Garay, L.V. Hau, M. Büttiker, M. Hino, M. Tanaka, M.K. Oberthaler, N. Grot, N. Yamada, P. Kochanski, R. Giannitrapani, R. Landauer, R.S. Dumont, R.Y. Chiao, S. Brouard, V. Delgado, V.M. de Aquino, W.R. McKinnon, Y. Aharonov, Y. Aharonov, Y. Nakamura, Y.E. Lozovik   +41 more
core   +1 more source

Pediatric Oncology Nursing Competencies in Latin America and the Caribbean: A Scoping Review to Inform Practice, Education, and Research

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Nurses are central to cancer care for children and adolescents, yet no comprehensive synthesis has defined essential core competencies for pediatric oncology nursing (PON) practice internationally, particularly in Latin America and the Caribbean (LAC).
Luís Carlos Lopes‐Júnior, Edmara Bazoni Soares Maia, Soad Fuentes‐Alabí, Courtney E. Sullivan, Monnie Abraham, Mauricio Maza, Liliana Vásquez Ponce, Regina Aparecida Garcia Lima   +7 more
wiley   +1 more source

Comparison of Accuracy of Arrival-Time-Insensitive and Arrival-Time-Sensitive CTP Algorithms for Prediction of Infarct Tissue Volumes

Scientific Reports, 2020
The purpose of this study was to compare the performance of arrival-time-insensitive (ATI) and arrival-time-sensitive (ATS) computed tomography perfusion (CTP) algorithms in Philips IntelliSpace Portal (v9, ISP) and to investigate optimal thresholds for ...
Lenhard Pennig, Frank Thiele, Lukas Goertz, Kai Roman Laukamp, Michael Perkuhn, Christoph Kabbasch, Marc Schlamann, Gereon Rudolf Fink, Jan Borggrefe   +8 more
doaj   +1 more source

Contributed Review: Source-localization algorithms and applications using time of arrival and time difference of arrival measurements [PDF]

Review of Scientific Instruments, 2016
Locating the position of fixed or mobile sources (i.e., transmitters) based on measurements obtained from sensors (i.e., receivers) is an important research area that is attracting much interest. In this paper, we review several representative localization algorithms that use time of arrivals (TOAs) and time difference of arrivals (TDOAs) to achieve ...
Xinya Li, Zhiqun Daniel Deng, Lynn T. Rauchenstein, Thomas J. Carlson   +3 more
openaire   +2 more sources

Time-of-arrival lightning activity location system [PDF]

, 1975
System fixes location of charge buildup in clouds.
Lennon, C. L.
core   +1 more source

Ambiguities of arrival-time distributions in quantum theory

, 1998
We consider the definition that might be given to the time at which a particle arrives at a given place, both in standard quantum theory and also in Bohmian mechanics.
B. Mielnik, C. R. Leavens, D. Bohm, D. Bohm, D. Bohm, E. Deotto, E. J. Squires, G. R. Allcock, G. R. Allcock, G. R. Allcock, J. Finkelstein, J. G. Muga, J. G. Muga, J. G. Muga, J. J. Halliwell, J. Kijowski, M. Daumer, N. Grot, P. R. Holland, V. Delgado, V. Delgado, V. Delgado, Y. Aharonov   +22 more
core   +2 more sources

Prevalence and Trajectory of Household Material Hardship Among Children With Advanced Cancer

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background/Objectives Families of children with advanced cancer living in poverty experience inferior outcomes including poor parent mental health and worse child quality of life. Household material hardship (HMH: food, housing, transportation, and/or utility insecurity) is a modifiable poverty exposure—and potential intervention target—that ...
Sarah Wright, Morgan A. Paul, Selena Murcia Mendez, Emily Jones, Lucille Lokko, Chelsea Heneghan, Nicholas Purol, Morgan Arnold, Rahela Aziz‐Bose, Colleen A. Kelly, Sandi L. Pruitt, Joanne Wolfe, Kira Bona, Puja J. Umaretiya   +13 more
wiley   +1 more source